Improve ui-test video

* chore(package): update css-loader to version 3.0.0

* chore(package): update lockfile app/yarn.lock

.cspell.json

@@ -0,0 +1,8 @@
+{
+    "language": "en",
+    "words": [
+        "subheader",
+        "basepath",
+	"webdriverio"
+    ]
+}

.eslintrc.json

@@ -0,0 +1,17 @@
+{
+    "env": {
+        "browser": true,
+        "commonjs": true,
+        "es6": true
+    },
+    "extends": "eslint:recommended",
+    "globals": {
+        "Atomics": "readonly",
+        "SharedArrayBuffer": "readonly"
+    },
+    "parserOptions": {
+        "ecmaVersion": 2018
+    },
+    "rules": {
+    }
+}

.prettierignore

@@ -0,0 +1,2 @@
+node_modules
+build

.travis.yml

@@ -25,13 +25,13 @@ services:
 install:
   - yarn install
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get update && sudo apt-get -y install snap squashfs-tools && sudo snap install snapcraft --classic; fi;
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker build docker --tag uitest; fi;
 
 script:
   - yarn run build
+  - yarn lint
   - yarn test
   - export TRAVIS_BUILD_NUMBER="" # Override travis build number since it is uses for tagging the binary version https://github.com/electron-userland/electron-builder/issues/3730
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker run -e GH_TOKEN=$GH_TOKEN -e GIT_TAG=$TRAVIS_TAG --rm -v `pwd`:/app uitest sh -c "cd app && docker/testMounted.sh"; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker run -e GH_TOKEN=$GH_TOKEN -e GIT_TAG=$TRAVIS_TAG --rm -v `pwd`:/app thomasnordquist/ui-test-recording-env sh -c "cd app && docker/testMounted.sh"; fi
   - if [[ "$TRAVIS_TAG" != "" ]]; then yarn run prepare-release; fi
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ "$TRAVIS_TAG" != "" ]]; then yarn run package linux; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]] && [[ "$TRAVIS_TAG" != "" ]]; then yarn run package -- mac; fi

.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+  "editor.formatOnSave": true,
+  "files.exclude": {
+    "**/node_modules": true,
+    "build/": true
+  }
+}

Changelog.md

@@ -1,12 +1,12 @@
-# 0.2.1
+# 0.2.3
 
-- Highlight differences in the last received message with a "diff" view
-- Magnify app content with "Ctrl +", "Ctrl -", "Ctrl 0"
-- Make user interactions more predictable by removing "select topic on mouse over"
-- Add "Quick Preview" setting, to enable topic selection on mouse over
-- Add JSON formatter
-- Show error when connection to the mqtt broker is lost
-- Fix bug where mqtt explorer resets the tree after a reconnect
-- Fix MQTT-Client id
+  - Highlight differences in the last received message with a "diff" view
+  - Magnify app content with "Ctrl +", "Ctrl -", "Ctrl 0"
+  - Make user interactions more predictable by removing "select topic on mouse over"
+  - Add "Quick Preview" setting, to enable topic selection on mouse over
+  - Add JSON formatter
+  - Show error when connection to the mqtt broker is lost
+  - Fix bug where mqtt explorer resets the tree after a reconnect
+  - Fix MQTT-Client id
 
-# 0.2.0
+# 0.2.0

LICENSE

@@ -1,661 +0,0 @@
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LICENSE.md

@@ -0,0 +1,158 @@
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+

Readme.md

@@ -1,100 +1,66 @@
-# [MQTT Explorer](https://thomasnordquist.github.io/MQTT-Explorer/)
+# [MQTT Explorer](https://mqtt-explorer.com)
+
 [![Downloads](https://img.shields.io/github/release/thomasnordquist/mqtt-explorer.svg)](https://travis-ci.org/thomasnordquist/MQTT-Explorer/releases)
 [![Downloads](https://img.shields.io/github/downloads/thomasnordquist/mqtt-explorer/total.svg)](https://travis-ci.org/thomasnordquist/MQTT-Explorer/releases)
 [![Build_Status](https://travis-ci.org/thomasnordquist/MQTT-Explorer.svg?branch=master)](https://travis-ci.org/thomasnordquist/MQTT-Explorer)
 [![Build status](https://ci.appveyor.com/api/projects/status/c35tkm29rm4m5364/branch/master?svg=true)](https://ci.appveyor.com/project/thomasnordquist/mqtt-explorer/branch/master)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/47b26e03fce543ceac7914214482334a)](https://app.codacy.com/app/thomasnordquist/MQTT-Explorer?utm_source=github.com&utm_medium=referral&utm_content=thomasnordquist/MQTT-Explorer&utm_campaign=Badge_Grade_Dashboard)
 
-### Version 
+|   |   |   |
+|:---:|:---:|:---:|
+|[![screen_composite](https://mqtt-explorer.com/img/screen-composite_small.png)](https://mqtt-explorer.com/img/screen-composite.png)|[![screen2_small](https://mqtt-explorer.com/img/screen2_small.png)](https://mqtt-explorer.com/img/screen2.png)|[![screen3_small](https://mqtt-explorer.com/img/screen3_small.png)](https://mqtt-explorer.com/img/screen3.png)|
 
-A MQTT Tool to get a quick overview of your MQTT topics and integrate new devices/services more efficiently.
+# The App has moved to [mqtt-explorer.com](https://mqtt-explorer.com)
+MQTT Explorer is a comprehensive and easy-to-use MQTT Client.  
+Downloads can be found at the link above.
 
-- Visualize topics and topic activity
-- Delete retained topics
-- Search/filter topics
-- Delete topic recursively
-- Publish topics
-- Plot numeric topics
-- Keep a history of each topic
+This page is dedicated to its development.
+Pull-Requests and error reports are welcome.
 
-MQTT-Explorer strives to be THE swiss-army-knife tool.
-The perfect tool to integrate new services, IoT devices in your network.
-The hierarchical view allows for a quick understanding what is going on on your broker.
+## Run from sources
 
-## Download
-
-| Platform | | Downloads |
-|:----------:|:-------------:|:------:|
-| ![windows](https://user-images.githubusercontent.com/7721625/51445407-b4172080-1d04-11e9-8c70-d8413d1d6d8b.png) | Windows | [portable](https://github.com/thomasnordquist/MQTT-Explorer/releases/download/v0.2.0/MQTT-Explorer-0.2.0.exe), [installer](https://github.com/thomasnordquist/MQTT-Explorer/releases/download/v0.2.0/MQTT-Explorer-Setup-0.2.0.exe) |
-| ![linux](https://user-images.githubusercontent.com/7721625/51445392-947ff800-1d04-11e9-8c7f-a30efb755651.png) | Linux | [AppImage](https:&#x2F;&#x2F;github.com&#x2F;thomasnordquist&#x2F;MQTT-Explorer&#x2F;releases&#x2F;download&#x2F;v0.2.0&#x2F;MQTT-Explorer-0.2.0-x86_64.AppImage)<br>*Run AppImage:<br>Make it executable and double-click it.* |
-| ![ubuntu](https://user-images.githubusercontent.com/7721625/51445401-a5306e00-1d04-11e9-9b9b-20e196b82142.png) | Ubuntu | [![Get it from the Snap Store](https://snapcraft.io/static/images/badges/en/snap-store-black.svg)](https://snapcraft.io/mqtt-explorer)<br>[Ubuntu Store](snap://mqtt-explorer) |
-| ![mac](https://user-images.githubusercontent.com/7721625/51445390-921d9e00-1d04-11e9-8339-351469ef20ae.png) | Mac | [dmg](https:&#x2F;&#x2F;github.com&#x2F;thomasnordquist&#x2F;MQTT-Explorer&#x2F;releases&#x2F;download&#x2F;v0.2.0&#x2F;MQTT-Explorer-0.2.0.dmg) |
-
-[More Downloads](https://github.com/thomasnordquist/MQTT-Explorer/releases)
-
-## Screenshots
-![screen1](https://user-images.githubusercontent.com/7721625/51770198-6c6a0d80-20e5-11e9-94d5-a0174634253c.png)
-
-## Demo
-![screencast](https://user-images.githubusercontent.com/7721625/52979302-3f073b80-33d5-11e9-9953-b70ebb349439.gif)
-
-## Performance
-
-This App is optimized to handle thousands of topics and at hundreds of thousands messages per minute.
-
-In very large productive environments brokers may handle an exteme load of topics.
-Subscribing with a wildcard topic is in this scenario not adviced.
-To avoid a scenario where the MQTT-Explorer would have to handle millions of updates, one can set up custom subscriptions in the "Advanced" connection settings.
+```bash
+yarn
+yarn build
+yarn start
+```
 
 ## Develop
 
-PRs and issues are welcome
+Launch Application
+```bash
+yarn
+yarn dev
+```
 
-Install with `npm run install`, build with `npm run build`
-
-Start with `npm run start`
-
-The `app` directory contains all the rendering logic, the `backend` directory currently contains the models, tests, connection management.
+The `app` directory contains all the rendering logic, the `backend` directory currently contains the models, tests, connection management, `src` contains all the electron bindings. [mqttjs](https://github.com/mqttjs/MQTT.js) is used to facilitate communication to MQTT brokers.
 
 ## Automated Tests
 
-To achieve a reliable product automated tests run regulary on travis.
+To achieve a reliable product automated tests run regularly on travis.
 
-- Data model
-- MQTT integration
-- UI-Tests (The demo is a recorded ui test)
+  - Data model
+  - MQTT integration
+  - UI-Tests (The demo is a recorded ui test)
 
-## Telemetry
+## Run UI-tests
+A [mosquitto](https://mosquitto.org/) MQTT broker is required to run the ui-tests.
 
-No personal data is processed, sent or stored.
-
-The app sends telemetry and error reports, this enables me to quickly react on bugs/errors and understand what's going on.
-The app runs on winows, linux and mac and has thousands of users. Responding quickly to bugs is essential.
-This greatly helps to improve the software quality and reliability.
-
-It basically sends: app version, processor architecture, operating system, used memory, user interactions and error stacks.
-
-<details>
-<summary><p>Example telemetry</p>
-</summary>
-
-```javascript
-{ system: { arch: 'x64', platform: 'darwin' },
-  appVersion: '0.0.7',
-  events: { HELLO_EVENT: [ 1547714886134 ] },
-  now: 1547714886135,
-  transactionId: '1767d251-f492-4f2c-aa62-88add3acc26b' }
-{ errors:
-   [ { time: 1547714887921,
-       message: 'He\'s dead Jim!',
-       stack:
-        'Error: He\'s dead Jim!\n    at ./src/tracking.ts.exports.default (./mqtt-explorer/app/build/bundle.js:142765:11)\n    at new Promise (<anonymous>)\n    at Object../src/tracking.ts (./mqtt-explorer/app/build/bundle.js:142764:1)\n    at __webpack_require__ (./mqtt-explorer/app/build/bundle.js:20:30)\n    at Object../src/index.tsx (./mqtt-explorer/app/build/bundle.js:142618:1)\n    at __webpack_require__ (./mqtt-explorer/app/build/bundle.js:20:30)\n    at ../backend/node_modules/charenc/charenc.js.charenc.utf8.stringToBytes (./mqtt-explorer/app/build/bundle.js:84:18)\n    at ./mqtt-explorer/app/build/bundle.js:87:10' } ],
-  now: 1547714887921,
-  transactionId: '53bf9aac-e695-40cc-9a81-b1cf3398843d' }
+Run tests with
+```bash
+# Run chromedriver in a separate terminal session
+./node_modules/.bin/chromedriver --url-base=wd/hub --port=9515 --verbose
 ```
 
-</details>
-
-Even thoug the data is purely technical, an option to disable telemetry is planned. [#52](https://github.com/thomasnordquist/MQTT-Explorer/issues/52)
+Compile and execute tests
+```bash
+npm run build
+node dist/src/spec/webdriverio.js
+```
 
 ## License
-[AGPL 3](./LICENSE)
+
+![CC-BY-ND 4.0](https://img.shields.io/badge/License-CC%20BY--ND%204.0-blue.svg)  
+[CC-BY-ND 4.0](https://creativecommons.org/licenses/by-nd/4.0/)
+
+The license is a little restrictive to distributing derived work, this may change in the future if the interest arises or more people work on this project.

Readme.tpl.md

@@ -1,100 +0,0 @@
-# [MQTT Explorer](https://thomasnordquist.github.io/MQTT-Explorer/)
-[![Downloads](https://img.shields.io/github/release/thomasnordquist/mqtt-explorer.svg)](https://travis-ci.org/thomasnordquist/MQTT-Explorer/releases)
-[![Downloads](https://img.shields.io/github/downloads/thomasnordquist/mqtt-explorer/total.svg)](https://travis-ci.org/thomasnordquist/MQTT-Explorer/releases)
-[![Build_Status](https://travis-ci.org/thomasnordquist/MQTT-Explorer.svg?branch=master)](https://travis-ci.org/thomasnordquist/MQTT-Explorer)
-[![Build status](https://ci.appveyor.com/api/projects/status/c35tkm29rm4m5364/branch/master?svg=true)](https://ci.appveyor.com/project/thomasnordquist/mqtt-explorer/branch/master)
-
-### Version {{ version }}
-
-A MQTT Tool to get a quick overview of your MQTT topics and integrate new devices/services more efficiently.
-
-- Visualize topics and topic activity
-- Delete retained topics
-- Search/filter topics
-- Delete topic recursively
-- Publish topics
-- Plot numeric topics
-- Keep a history of each topic
-
-MQTT-Explorer strives to be THE swiss-army-knife tool.
-The perfect tool to integrate new services, IoT devices in your network.
-The hierarchical view allows for a quick understanding what is going on on your broker.
-
-## Download
-
-| Platform | | Downloads |
-|:----------:|:-------------:|:------:|
-| ![windows](https://user-images.githubusercontent.com/7721625/51445407-b4172080-1d04-11e9-8c70-d8413d1d6d8b.png) | Windows | <a href="https://www.microsoft.com/store/apps/9PP8SFM082WD?ocid=badge"><img src="https://assets.windowsphone.com/85864462-9c82-451e-9355-a3d5f874397a/English_get-it-from-MS_InvariantCulture_Default.png" width="150" /></a><br/>{{windowsTargets}} |
-| ![linux](https://user-images.githubusercontent.com/7721625/51445392-947ff800-1d04-11e9-8c7f-a30efb755651.png) | Linux | {{linuxTargets}}<br>*Run AppImage:<br>Make it executable and double-click it.* |
-| ![ubuntu](https://user-images.githubusercontent.com/7721625/51445401-a5306e00-1d04-11e9-9b9b-20e196b82142.png) | Ubuntu | <a href="https://snapcraft.io/mqtt-explorer" title="Get it from the Snap Store"><img src="https://snapcraft.io/static/images/badges/en/snap-store-black.svg" width="150" /><br/>[Ubuntu Store](snap://mqtt-explorer) |
-| ![mac](https://user-images.githubusercontent.com/7721625/51445390-921d9e00-1d04-11e9-8339-351469ef20ae.png) | Mac | {{macTargets}} |
-
-[More Downloads](https://github.com/thomasnordquist/MQTT-Explorer/releases)
-
-## Screenshots
-![screen1](https://user-images.githubusercontent.com/7721625/51770198-6c6a0d80-20e5-11e9-94d5-a0174634253c.png)
-
-## Demo
-![screencast](https://user-images.githubusercontent.com/7721625/52979302-3f073b80-33d5-11e9-9953-b70ebb349439.gif)
-
-## Performance
-
-This App is optimized to handle thousands of topics and at hundreds of thousands messages per minute.
-
-In very large productive environments brokers may handle an exteme load of topics.
-Subscribing with a wildcard topic is in this scenario not adviced.
-To avoid a scenario where the MQTT-Explorer would have to handle millions of updates, one can set up custom subscriptions in the "Advanced" connection settings.
-
-## Develop
-
-PRs and issues are welcome
-
-Install with `npm run install`, build with `npm run build`
-
-Start with `npm run start`
-
-The `app` directory contains all the rendering logic, the `backend` directory currently contains the models, tests, connection management.
-
-## Automated Tests
-
-To achieve a reliable product automated tests run regulary on travis.
-
-- Data model
-- MQTT integration
-- UI-Tests (The demo is a recorded ui test)
-
-## Telemetry
-
-No personal data is processed, sent or stored.
-
-The app sends telemetry and error reports, this enables me to quickly react on bugs/errors and understand what's going on.
-The app runs on winows, linux and mac and has thousands of users. Responding quickly to bugs is essential.
-This greatly helps to improve the software quality and reliability.
-
-It basically sends: app version, processor architecture, operating system, used memory, user interactions and error stacks.
-
-<details>
-<summary><p>Example telemetry</p>
-</summary>
-
-```javascript
-{ system: { arch: 'x64', platform: 'darwin' },
-  appVersion: '0.0.7',
-  events: { HELLO_EVENT: [ 1547714886134 ] },
-  now: 1547714886135,
-  transactionId: '1767d251-f492-4f2c-aa62-88add3acc26b' }
-{ errors:
-   [ { time: 1547714887921,
-       message: 'He\'s dead Jim!',
-       stack:
-        'Error: He\'s dead Jim!\n    at ./src/tracking.ts.exports.default (./mqtt-explorer/app/build/bundle.js:142765:11)\n    at new Promise (<anonymous>)\n    at Object../src/tracking.ts (./mqtt-explorer/app/build/bundle.js:142764:1)\n    at __webpack_require__ (./mqtt-explorer/app/build/bundle.js:20:30)\n    at Object../src/index.tsx (./mqtt-explorer/app/build/bundle.js:142618:1)\n    at __webpack_require__ (./mqtt-explorer/app/build/bundle.js:20:30)\n    at ../backend/node_modules/charenc/charenc.js.charenc.utf8.stringToBytes (./mqtt-explorer/app/build/bundle.js:84:18)\n    at ./mqtt-explorer/app/build/bundle.js:87:10' } ],
-  now: 1547714887921,
-  transactionId: '53bf9aac-e695-40cc-9a81-b1cf3398843d' }
-```
-
-</details>
-
-Even thoug the data is purely technical, an option to disable telemetry is planned. [#52](https://github.com/thomasnordquist/MQTT-Explorer/issues/52)
-
-## License
-[AGPL 3](./LICENSE)

_config.yml

@@ -1,15 +0,0 @@
-theme: jekyll-theme-architect
-title: MQTT Explorer
-description: Tool to visualize your MQTT topics, a MQTT swiss-army knife
-author:
-  name: Thomas Nordquist
-  picture: https://avatars1.githubusercontent.com/u/7721625?s=460&v=4 
-github_username: thomasnordquist
-logo: https://user-images.githubusercontent.com/7721625/52227945-5280b580-28b1-11e9-804c-75a842537393.png
-plugins:
-  - jekyll-seo-tag
-google_analytics: UA-133696837-1
-
-markdown: kramdown
-kramdown:
-  parse_block_html: true

_layouts/default.html

@@ -1,79 +0,0 @@
-<!DOCTYPE html>
-<html lang="{{ site.lang | default: "en-US" }}">
-  <head>
-    <meta charset='utf-8'>
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
-    <link rel="stylesheet" href="{{ '/assets/css/style.css?v=' | append: site.github.build_revision | relative_url }}" media="screen" type="text/css">
-    <link rel="stylesheet" href="{{ '/assets/css/print.css' | relative_url }}" media="print" type="text/css">
-
-    <!--[if lt IE 9]>
-    <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
-    <![endif]-->
-
-    {% seo %}
-  </head>
-
-  <body>
-    <header>
-      <div class="inner">
-        <a href="{{ '/' | absolute_url }}">
-          <h1 style="display: inline">
-            <img src="./icon.png" style="
-              height: 1em;
-              display: inline;
-              vertical-align: top;
-              margin-top: -0.04em;
-            "></img>
-            {{ site.title | default: site.github.repository_name }}
-          </h1>
-        </a>
-        <h2>{{ site.description | default: site.github.project_tagline }}</h2>
-        {% if site.github.is_project_page %}
-          <a href="{{ site.github.repository_url }}" class="button"><small>View project on</small> GitHub</a>
-        {% endif %}
-        {% if site.github.is_user_page %}
-          <a href="{{ site.github.owner_url }}" class="button"><small>Follow me on</small> GitHub</a>
-        {% endif %}
-      </div>
-    </header>
-
-    <div id="content-wrapper">
-      <div class="inner clearfix">
-        <section id="main-content">
-          {{ content }}
-        </section>
-
-        <aside id="sidebar">
-          {% if site.show_downloads %}
-            <a href="{{ site.github.zip_url }}" class="button">
-              <small>Download</small>
-              .zip file
-            </a>
-            <a href="{{ site.github.tar_url }}" class="button">
-              <small>Download</small>
-              .tar.gz file
-            </a>
-          {% endif %}
-
-          {% if site.github.is_project_page %}
-            <p class="repo-owner"><a href="{{ site.github.repository_url }}">{{ site.github.repository_name }}</a> is maintained by <a href="{{ site.github.owner_url }}">{{ site.github.owner_name }}</a>.</p>
-          {% endif %}
-
-          <p>This page was generated by <a href="https://pages.github.com">GitHub Pages</a>.</p>
-        </aside>
-      </div>
-    </div>
-
-    {% if site.google_analytics %}
-      <script>
-        (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-        (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-        m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-        })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-        ga('create', '{{ site.google_analytics }}', 'auto');
-        ga('send', 'pageview');
-      </script>
-    {% endif %}
-  </body>
-</html>

app/index.html

@@ -1,134 +1,182 @@
 <!DOCTYPE html>
 <html>
-    <head>
-        <meta charset="UTF-8" />
-        <title>MQTT Explorer</title>
-        <script src="./bugtracking.bundle.js"></script>
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="minimum-scale=1, initial-scale=1, width=device-width, shrink-to-fit=no" />
+    <title>MQTT Explorer</title>
+    <script src="./bugtracking.bundle.js"></script>
 
-        <style>
-          body, html {
-            margin: 0;
-            padding: 0;
-          }
+    <style>
+      body,
+      html {
+        margin: 0;
+        padding: 0;
+      }
 
-          @keyframes example {
-            0%   {background-color: none;}
-            25%  {background-color: #3f51b5 ;}
-            50%  {background-color: #3f51b5;}
-            100% {background-color: none;}
-          }
+      [tabindex] {
+        outline: none;
+      }
 
-          ::-webkit-scrollbar {
-            width: 8px;
-            height: 8px;
-          }
+      @keyframes updateDark {
+        0% {
+          background-color: none;
+        }
+        25% {
+          background-color: #3f51b5;
+        }
+        50% {
+          background-color: #3f51b5;
+        }
+        100% {
+          background-color: none;
+        }
+      }
 
-          ::-webkit-scrollbar-corner {
-            background-color: rgba(0, 0, 0, 0.0);
-          }
+      @keyframes updateLight {
+        0% {
+          background-color: none;
+          color: inherit;
+        }
+        25% {
+          background-color: #bfc9c8;
+          color: #000;
+        }
+        50% {
+          background-color: #bfc9c8;
+          color: #000;
+        }
+        100% {
+          background-color: none;
+          color: inherit;
+        }
+      }
 
-          ::-webkit-scrollbar-track {
-            -webkit-box-shadow: inset 0 0 6px rgba(30,30,30,0.3);
-          }
+      ::-webkit-scrollbar {
+        width: 8px;
+        height: 8px;
+      }
 
-          ::-webkit-scrollbar-thumb {
-            background-color: rgba(140,140,140,0.8);
-          }
-        </style>
-        <style>
-          #splash {
-            z-index: 1000000;
-            background-color: #303030;
-            display: block;
-            width: 100vw;
-            height: 100vh;
-            position: fixed;
-            opacity: 1;
-          }
-          #splash1 {
-            margin: 37vh auto 0 auto;
-            height: 25vh;
-            width: 25vh;
-            /* background-image:url('../rings.svg'); */
-            background-size: cover;
-          }
-          #splash2 {
-            margin: 0 auto;
-          }
-          @keyframes unsplash {
-            0%   {opacity: 1;}
-            100% {opacity: 0;}
-          }
+      ::-webkit-scrollbar-corner {
+        background-color: rgba(0, 0, 0, 0);
+      }
 
-          .Resizer {
-              background: #eee;
-              opacity: .2;
-              z-index: 1;
-              -moz-box-sizing: border-box;
-              -webkit-box-sizing: border-box;
-              box-sizing: border-box;
-              -moz-background-clip: padding;
-              -webkit-background-clip: padding;
-              background-clip: padding-box;
-          }
+      ::-webkit-scrollbar-track {
+        -webkit-box-shadow: inset 0 0 6px rgba(60, 60, 60, 0.5);
+        background-color: rgba(140, 140, 140, 0.1);
+      }
 
-          .Resizer:hover {
-              -webkit-transition: all 0.3s ease-out;
-              transition: all 0.3s ease-out;
-          }
+      ::-webkit-scrollbar-thumb {
+        background-color: rgba(140, 140, 140, 0.8);
+      }
+    </style>
+    <style>
+      .Resizer {
+        background: rgba(200, 200, 200, 0);
+        z-index: 10;
+        -moz-box-sizing: border-box;
+        -webkit-box-sizing: border-box;
+        box-sizing: border-box;
+        -moz-background-clip: padding;
+        -webkit-background-clip: padding;
+        background-clip: padding-box;
+      }
 
-          .Resizer.horizontal {
-              height: 11px;
-              margin: -5px 0;
-              border-top: 5px solid rgba(255, 255, 255, 0);
-              border-bottom: 5px solid rgba(255, 255, 255, 0);
-              cursor: row-resize;
-              width: 100%;
-          }
+      .Resizer:hover {
+        -webkit-transition: all 0.3s ease-out;
+        transition: all 0.3s ease-out;
+      }
 
-          .Resizer.horizontal:hover {
-              border-top: 5px solid rgba(0, 0, 0, 0.5);
-              border-bottom: 5px solid rgba(0, 0, 0, 0.5);
-          }
+      .Resizer.horizontal {
+        height: 10px;
+        margin: -10px 0 0 0;
+        border-top: 5px solid rgba(255, 255, 255, 0);
+        border-bottom: 5px solid rgba(255, 255, 255, 0);
+        cursor: row-resize;
+        width: 100%;
+      }
 
-          .Resizer.vertical {
-              width: 11px;
-              margin: 0 -5px;
-              border-left: 5px solid rgba(255, 255, 255, 0);
-              border-right: 5px solid rgba(255, 255, 255, 0);
-              cursor: col-resize;
-          }
+      .Resizer.horizontal::before {
+        content: '•••';
+        display: inline-block;
+        vertical-align: middle;
+        text-align: center;
+        width: 100%;
+        margin-top: -22px;
+        color: #aaa;
+        opacity: 1;
+      }
 
-          .Resizer.vertical:hover {
-              border-left: 5px solid rgba(255, 255, 255, 0.5);
-              border-right: 5px solid rgba(255, 255, 255, 0.5);
-          }
-          .Resizer.disabled {
-            cursor: not-allowed;
-          }
-          .Resizer.disabled:hover {
-            border-color: transparent;
-          }
+      .Resizer.horizontal:hover {
+        border-top: 5px solid rgba(120, 120, 120, 0.3);
+        border-bottom: 5px solid rgba(120, 120, 120, 0.3);
+      }
 
-        </style>
-        <script src="http://localhost:35729/livereload.js"></script>
-    </head>
-    <body>
-        <div id="splash"><div id="splash1"></div></div>
-        <div id="app" style="font:-webkit-control"></div>
-        <script>
-            function loadScript(path) {
-              var script = document.createElement("script");
-              script.src = path
-              document.head.appendChild(script);
-            }
-    
-            document.addEventListener('DOMContentLoaded', onLoad(), false);
-            function onLoad() {
-              // <% _.forEach(htmlWebpackPlugin.files.js, function(file) { %>loadScript("<%- file %>");<% }); %>
-              // loadScript("<%= JSON.stringify(htmlWebpackPlugin) %>")
-            }
-          </script>
-          <% _.forEach(htmlWebpackPlugin.files.js, function(file) { %><script src="<%- file %>"></script><% }); %>
-    </body>
+      .Resizer.vertical {
+        width: 2px;
+        margin: 0px -8px 0px 0px;
+        border-left: 0px solid rgba(128, 128, 128, 0);
+        border-right: 8px solid rgba(128, 128, 128, 0);
+        cursor: col-resize;
+      }
+
+      .Resizer.vertical::before {
+        content: '•••';
+        margin-left: -11px;
+        height: 3em;
+        margin-top: calc(50vh - 32px);
+        display: inline-block;
+        vertical-align: middle;
+        text-align: center;
+        color: #aaa;
+        opacity: 1;
+        writing-mode: vertical-lr;
+        text-orientation: sideways;
+      }
+
+      .Resizer.vertical:hover {
+        border-left: 0px solid rgba(130, 130, 130, 0.3);
+        border-right: 8px solid rgba(140, 140, 140, 0.3);
+      }
+
+      .Resizer.disabled {
+        cursor: not-allowed;
+      }
+      .Resizer.disabled:hover {
+        border-color: transparent;
+      }
+
+      .example-enter {
+        opacity: 0;
+      }
+      .example-enter-active {
+        opacity: 1;
+        transition: opacity 300ms ease-in;
+      }
+      .example-exit {
+        opacity: 1;
+      }
+      .example-exit-active {
+        opacity: 0;
+        transition: opacity 300ms ease-in;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="app" style="font:-webkit-control"></div>
+    <script>
+      function loadScript(path) {
+        var script = document.createElement('script')
+        script.src = path
+        document.head.appendChild(script)
+      }
+
+      document.addEventListener('DOMContentLoaded', onLoad(), false)
+      function onLoad() {
+        // <% _.forEach(htmlWebpackPlugin.files.js, function(file) { %>loadScript("<%- file %>");<% }); %>
+        // loadScript("<%= JSON.stringify(htmlWebpackPlugin) %>")
+      }
+    </script>
+    <% _.forEach(htmlWebpackPlugin.files.js, function(file) { %><script src="<%- file %>"></script
+    ><% }); %>
+  </body>
 </html>

app/package.json

@@ -4,61 +4,82 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "build": "webpack --mode production"
+    "build": "yarn rebuild && webpack --mode production",
+    "dev": "node_modules/.bin/webpack-dev-server --mode development --progress",
+    "rebuild": "cd node_modules/heapdump && node-gyp rebuild --target=5.0.4 --arch=x64 --dist-url=https://atom.io/download/electron || echo Could not build heapdump; cd -"
   },
   "author": "",
-  "license": "ISC",
-  "devDependencies": {
-    "@material-ui/core": "^4.0.0-alpha.1",
-    "@material-ui/icons": "^3.0.2",
-    "@material-ui/lab": "^3.0.0-alpha.30",
-    "@material-ui/styles": "^3.0.0-alpha.10",
-    "@types/diff": "^4.0.1",
-    "@types/node": "^10.12.18",
-    "@types/prismjs": "^1.9.1",
-    "@types/react": "^16.7.18",
-    "@types/react-dom": "^16.0.11",
-    "@types/react-redux": "^6.0.12",
-    "@types/react-resize-detector": "^3.1.0",
-    "@types/react-split-pane": "^0.1.67",
-    "@types/sha1": "^1.1.1",
-    "@types/socket.io-client": "^1.4.32",
-    "@types/uuid": "^3.4.4",
-    "@types/vis": "^4.21.9",
-    "awesome-typescript-loader": "^5.2.1",
+  "license": "CC-BY-ND-4.0",
+  "dependencies": {
+    "@material-ui/core": "^4",
+    "@material-ui/icons": "^4",
+    "@material-ui/lab": "^4.0.0-alpha",
+    "@material-ui/styles": "^4",
+    "@types/react-transition-group": "^2.9.2",
+    "axios": "^0.19.0",
+    "brace": "^0.11.1",
     "compare-versions": "^3.4.0",
-    "copy-text-to-clipboard": "^1.0.4",
-    "css-loader": "^2.1.0",
+    "copy-text-to-clipboard": "^2.1.0",
+    "d3": "^5.9.2",
+    "d3-shape": "^1.3.5",
     "diff": "^4.0.1",
-    "electron-nucleus": "^1.11.0",
+    "dot-prop": "^5.0.0",
     "electron-telemetry": "git+https://github.com/thomasnordquist/electron-telemetry.git#dist",
-    "html-webpack-plugin": "^4.0.0-beta.5",
-    "jquery": "^3.3.1",
+    "file-loader": "^4.0.0",
+    "get-value": "^3.0.1",
+    "immutable": "^4.0.0-rc.12",
+    "js-base64": "^2.5.1",
+    "json-to-ast": "^2.1.0",
     "lodash.debounce": "^4.0.8",
     "lodash.throttle": "^4.1.1",
+    "moment": "^2.24.0",
     "moving-average": "^1.0.0",
     "number-abbreviate": "^2.0.0",
     "prismjs": "^1.15.0",
     "react": "16.8",
-    "react-ace": "^6.3.2",
+    "react-ace": "^7.0.1",
     "react-dom": "^16.7.0",
-    "react-redux": "^6.0.0",
-    "react-resize-detector": "^3.4.0",
+    "react-redux": "^7.0.3",
+    "react-resize-detector": "^4.1.4",
     "react-split-pane": "^0.1.85",
+    "react-transition-group": "^4.1.1",
     "react-vis": "^1.11.6",
     "redux": "^4.0.1",
     "redux-batched-actions": "^0.4.1",
     "redux-thunk": "^2.3.0",
     "sha1": "^1.1.1",
     "socket.io-client": "^2.2.0",
+    "uuid": "^3.3.2"
+  },
+  "devDependencies": {
+    "@types/d3": "^5.7.2",
+    "@types/diff": "^4.0.1",
+    "@types/get-value": "^3.0.1",
+    "@types/node": "^12.0.4",
+    "@types/prismjs": "^1.9.1",
+    "@types/react": "^16.7.18",
+    "@types/react-dom": "^16.0.11",
+    "@types/react-redux": "^7.0.9",
+    "@types/react-resize-detector": "^4.0.1",
+    "@types/sha1": "^1.1.1",
+    "@types/socket.io-client": "^1.4.32",
+    "@types/uuid": "^3.4.4",
+    "@types/vis": "^4.21.9",
+    "awesome-typescript-loader": "^5.2.1",
+    "css-loader": "^3.0.0",
+    "hard-source-webpack-plugin": "^0.13.1",
+    "heapdump": "^0.3.12",
+    "html-webpack-plugin": "^4.0.0-beta.5",
+    "node-loader": "^0.6.0",
     "source-map-loader": "^0.2.4",
     "style-loader": "^0.23.1",
     "typescript": "^3.2.2",
-    "uuid": "^3.3.2",
     "webpack": "^4.28.2",
     "webpack-bundle-analyzer": "^3.0.3",
     "webpack-cli": "^3.1.2",
-    "webpack-dev-server": "^3.1.14",
-    "webpack-livereload-plugin": "^2.2.0"
+    "webpack-dev-server": "^3.1.14"
+  },
+  "peerDependencies": {
+    "electron": "^5.0.4"
   }
 }

app/rings.svg

@@ -1,42 +0,0 @@
-<!-- By Sam Herbert (@sherb), for everyone. More @ http://goo.gl/7AJzbL -->
-<svg width="45" height="45" viewBox="0 0 45 45" xmlns="http://www.w3.org/2000/svg" stroke="#fff">
-    <g fill="none" fill-rule="evenodd" transform="translate(1 1)" stroke-width="2">
-        <circle cx="22" cy="22" r="6" stroke-opacity="0">
-            <animate attributeName="r"
-                 begin="1.5s" dur="3s"
-                 values="6;22"
-                 calcMode="linear"
-                 repeatCount="indefinite" />
-            <animate attributeName="stroke-opacity"
-                 begin="1.5s" dur="3s"
-                 values="1;0" calcMode="linear"
-                 repeatCount="indefinite" />
-            <animate attributeName="stroke-width"
-                 begin="1.5s" dur="3s"
-                 values="2;0" calcMode="linear"
-                 repeatCount="indefinite" />
-        </circle>
-        <circle cx="22" cy="22" r="6" stroke-opacity="0">
-            <animate attributeName="r"
-                 begin="3s" dur="3s"
-                 values="6;22"
-                 calcMode="linear"
-                 repeatCount="indefinite" />
-            <animate attributeName="stroke-opacity"
-                 begin="3s" dur="3s"
-                 values="1;0" calcMode="linear"
-                 repeatCount="indefinite" />
-            <animate attributeName="stroke-width"
-                 begin="3s" dur="3s"
-                 values="2;0" calcMode="linear"
-                 repeatCount="indefinite" />
-        </circle>
-        <circle cx="22" cy="22" r="8">
-            <animate attributeName="r"
-                 begin="0s" dur="1.5s"
-                 values="6;1;2;3;4;5;6"
-                 calcMode="linear"
-                 repeatCount="indefinite" />
-        </circle>
-    </g>
-</svg>

app/src/TopicViewModel.ts

@@ -1,19 +0,0 @@
-import { EventDispatcher } from '../../events'
-
-export class TopicViewModel {
-  private selected: boolean
-  public change = new EventDispatcher<void, TopicViewModel>(this)
-
-  public constructor() {
-    this.selected = false
-  }
-
-  public isSelected() {
-    return this.selected
-  }
-
-  public setSelected(selected: boolean) {
-    this.selected = selected
-    this.change.dispatch()
-  }
-}

app/src/actions/Charts.ts

@@ -0,0 +1,128 @@
+import { Action, ActionTypes, ChartParameters } from '../reducers/Charts'
+import { AppState } from '../reducers'
+import { default as persistentStorage, StorageIdentifier } from '../utils/PersistentStorage'
+import { Dispatch } from 'redux'
+import { showError, showNotification } from './Global'
+
+interface ConnectionViewState {
+  charts: Array<ChartParameters>
+}
+
+interface ConnectionViewStateDictionary {
+  [s: string]: ConnectionViewState
+}
+const connectionViewStateIdentifier: StorageIdentifier<ConnectionViewStateDictionary> = {
+  id: 'connection_view_state',
+}
+
+export const loadCharts = () => async (dispatch: Dispatch<any>, getState: () => AppState) => {
+  const connectionId = getState().connection.connectionId
+  if (!connectionId) {
+    return
+  }
+
+  let viewStates: ConnectionViewStateDictionary | undefined
+  try {
+    viewStates = await persistentStorage.load(connectionViewStateIdentifier)
+  } catch (error) {
+    dispatch(showError(error))
+  }
+
+  if (!viewStates || !viewStates[connectionId]) {
+    dispatch(setCharts([]))
+    return
+  }
+
+  const viewState = viewStates[connectionId]
+  if (viewState) {
+    dispatch(setCharts(viewState.charts))
+  }
+}
+
+export const saveCharts = () => async (dispatch: Dispatch<any>, getState: () => AppState) => {
+  const connectionId = getState().connection.connectionId
+  if (!connectionId) {
+    return
+  }
+
+  const charts = getState()
+    .charts.get('charts')
+    .toArray()
+
+  let viewStates: ConnectionViewStateDictionary | undefined
+  try {
+    viewStates = (await persistentStorage.load(connectionViewStateIdentifier)) || {}
+    const state: ConnectionViewState = viewStates[connectionId] || { charts: [] }
+    state.charts = charts
+
+    viewStates[connectionId] = state
+    await persistentStorage.store(connectionViewStateIdentifier, viewStates)
+  } catch (error) {
+    dispatch(showError(error))
+  }
+}
+
+export const addChart = (chartParameters: ChartParameters) => async (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
+  const chartExists = Boolean(
+    getState()
+      .charts.get('charts')
+      .find(chart => chart.topic === chartParameters.topic && chart.dotPath === chartParameters.dotPath)
+  )
+  if (chartExists) {
+    dispatch(showNotification('Already added'))
+    return
+  }
+
+  dispatch({
+    type: ActionTypes.CHARTS_ADD,
+    chart: chartParameters,
+  })
+  dispatch(saveCharts())
+  dispatch(showNotification('Added to chart panel'))
+}
+
+export const updateChart = (chartParameters: ChartParameters) => async (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
+  dispatch({
+    type: ActionTypes.CHARTS_UPDATE,
+    topic: chartParameters.topic,
+    dotPath: chartParameters.dotPath,
+    parameters: chartParameters,
+  })
+  dispatch(saveCharts())
+}
+
+export const removeChart = (chartParameters: ChartParameters) => async (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
+  dispatch({
+    chart: chartParameters,
+    type: ActionTypes.CHARTS_REMOVE,
+  })
+  dispatch(saveCharts())
+}
+
+export const moveChartUp = (parameters: { topic: string; dotPath?: string }) => async (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
+  dispatch({
+    topic: parameters.topic,
+    dotPath: parameters.dotPath,
+    type: ActionTypes.CHARTS_MOVE_UP,
+  })
+  dispatch(saveCharts())
+}
+
+export const setCharts = (charts: Array<ChartParameters>): Action => {
+  return {
+    charts,
+    type: ActionTypes.CHARTS_SET,
+  }
+}

app/src/actions/Connection.ts

@@ -1,28 +1,26 @@
 import * as q from '../../../backend/src/Model'
 import * as url from 'url'
 import { Action, ActionTypes } from '../reducers/Connection'
+import { ActionTypes as SettingsActionTypes } from '../reducers/Settings'
 import { AppState } from '../reducers'
 import { DataSourceState, MqttOptions } from '../../../backend/src/DataSource'
 import { Dispatch } from 'redux'
 import { globalActions } from '.'
+import { resetStore as resetTreeStore, showTree } from './Tree'
 import { showError } from './Global'
-import { showTree } from './Tree'
-import { TopicViewModel } from '../TopicViewModel'
-import {
-  addMqttConnectionEvent,
-  makeConnectionStateEvent,
-  removeConnection,
-  rendererEvents,
-} from '../../../events'
+import { TopicViewModel } from '../model/TopicViewModel'
+import { addMqttConnectionEvent, makeConnectionStateEvent, removeConnection, rendererEvents } from '../../../events'
 
-export const connect = (options: MqttOptions, connectionId: string) => (dispatch: Dispatch<any>, getState: () => AppState) => {
+export const connect = (options: MqttOptions, connectionId: string) => (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
   dispatch(connecting(connectionId))
   rendererEvents.emit(addMqttConnectionEvent, { options, id: connectionId })
   const event = makeConnectionStateEvent(connectionId)
   const host = url.parse(options.url).hostname
 
-  rendererEvents.subscribe(event, (dataSourceState) => {
-    console.log(dataSourceState)
+  rendererEvents.subscribe(event, dataSourceState => {
     if (dataSourceState.connected) {
       const didReconnect = Boolean(getState().connection.tree)
       if (!didReconnect) {
@@ -52,26 +50,27 @@ const updateHealth = (dataSourceState: DataSourceState) => (dispatch: Dispatch<a
     state = undefined
   }
 
-  console.log(state)
-
   dispatch({
     type: ActionTypes.CONNECTION_SET_HEALTH,
     health: state,
   })
 }
 
-export const connected: (tree: q.Tree<TopicViewModel>, host: string) => Action = (tree: q.Tree<TopicViewModel>, host: string)  => ({
+export const connected: (tree: q.Tree<TopicViewModel>, host: string) => Action = (
+  tree: q.Tree<TopicViewModel>,
+  host: string
+) => ({
   tree,
   host,
   type: ActionTypes.CONNECTION_SET_CONNECTED,
 })
 
-export const connecting: (connectionId: string) => Action = (connectionId: string)  => ({
+export const connecting: (connectionId: string) => Action = (connectionId: string) => ({
   connectionId,
   type: ActionTypes.CONNECTION_SET_CONNECTING,
 })
 
-export const disconnect = () => (dispatch: Dispatch<any>, getState: () => AppState)  => {
+export const disconnect = () => (dispatch: Dispatch<any>, getState: () => AppState) => {
   const { connectionId, tree } = getState().connection
   if (connectionId) {
     rendererEvents.emit(removeConnection, connectionId)
@@ -79,9 +78,17 @@ export const disconnect = () => (dispatch: Dispatch<any>, getState: () => AppSta
   }
 
   tree && tree.stopUpdating()
+  tree && tree.destroy()
 
-  dispatch(showTree(undefined))
+  // Clear topic filter
+  dispatch({
+    topicFilter: '',
+    type: SettingsActionTypes.SETTINGS_FILTER_TOPICS,
+  })
+
+  dispatch(resetTreeStore())
   dispatch({
     type: ActionTypes.CONNECTION_SET_DISCONNECTED,
   })
+  dispatch(showTree(undefined))
 }

app/src/actions/ConnectionManager.ts

@@ -1,15 +1,24 @@
 import { AppState } from '../reducers'
 import { clearLegacyConnectionOptions, loadLegacyConnectionOptions } from '../model/LegacyConnectionSettings'
-import { ConnectionOptions, createEmptyConnection, makeDefaultConnections } from '../model/ConnectionOptions'
-import { default as persistantStorage, StorageIdentifier } from '../PersistantStorage'
+import {
+  ConnectionOptions,
+  createEmptyConnection,
+  makeDefaultConnections,
+  CertificateParameters,
+} from '../model/ConnectionOptions'
+import { default as persistentStorage, StorageIdentifier } from '../utils/PersistentStorage'
 import { Dispatch } from 'redux'
 import { showError } from './Global'
-import {
-  ActionTypes,
-  Action,
-} from '../reducers/ConnectionManager'
+import { remote } from 'electron'
+import * as fs from 'fs'
+import * as path from 'path'
 
-const storedConnectionsIdentifier: StorageIdentifier<{[s: string]: ConnectionOptions}> = {
+import { ActionTypes, Action } from '../reducers/ConnectionManager'
+
+interface ConnectionDictionary {
+  [s: string]: ConnectionOptions
+}
+const storedConnectionsIdentifier: StorageIdentifier<ConnectionDictionary> = {
   id: 'ConnectionManager_connections',
 }
 
@@ -17,7 +26,7 @@ export const loadConnectionSettings = () => async (dispatch: Dispatch<any>, getS
   let connections
   try {
     await ensureConnectionsHaveBeenInitialized()
-    connections = await persistantStorage.load(storedConnectionsIdentifier)
+    connections = await persistentStorage.load(storedConnectionsIdentifier)
   } catch (error) {
     dispatch(showError(error))
   }
@@ -33,16 +42,69 @@ export const loadConnectionSettings = () => async (dispatch: Dispatch<any>, getS
   }
 }
 
-export const saveConnectionSettings = () => async (dispatch: Dispatch<any>, getState: () => AppState) => {
+export const selectCertificate = (connectionId: string) => async (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
   try {
-    console.log('store settings')
-    await persistantStorage.store(storedConnectionsIdentifier, getState().connectionManager.connections)
+    const certificate = await openCertificate()
+    dispatch(
+      updateConnection(connectionId, {
+        selfSignedCertificate: certificate,
+      })
+    )
   } catch (error) {
     dispatch(showError(error))
   }
 }
 
-export const updateConnection = (connectionId: string, changeSet: any): Action => ({
+async function openCertificate(): Promise<CertificateParameters> {
+  const rejectReasons = {
+    noCertificateSelected: 'No certificate selected',
+    certificateSizeDoesNotMatch: 'Certificate size larger/smaller then expected.',
+  }
+
+  return new Promise((resolve, reject) => {
+    remote.dialog.showOpenDialog(
+      { properties: ['openFile'], securityScopedBookmarks: true },
+      (filePaths?: Array<string>) => {
+        const selectedFile = filePaths && filePaths[0]
+        if (!selectedFile) {
+          reject(rejectReasons.noCertificateSelected)
+          return
+        }
+
+        fs.readFile(selectedFile, (error, data) => {
+          if (error) {
+            reject(error)
+            return
+          }
+
+          if (data.length > 16_384 || data.length < 128) {
+            reject(rejectReasons.certificateSizeDoesNotMatch)
+            return
+          }
+
+          resolve({
+            data: data.toString('base64'),
+            name: path.basename(selectedFile),
+          })
+        })
+      }
+    )
+  })
+}
+
+export const saveConnectionSettings = () => async (dispatch: Dispatch<any>, getState: () => AppState) => {
+  try {
+    console.log('store settings')
+    await persistentStorage.store(storedConnectionsIdentifier, getState().connectionManager.connections)
+  } catch (error) {
+    dispatch(showError(error))
+  }
+}
+
+export const updateConnection = (connectionId: string, changeSet: Partial<ConnectionOptions>): Action => ({
   connectionId,
   changeSet,
   type: ActionTypes.CONNECTION_MANAGER_UPDATE_CONNECTION,
@@ -60,13 +122,13 @@ export const deleteSubscription = (subscription: string, connectionId: string):
   type: ActionTypes.CONNECTION_MANAGER_DELETE_SUBSCRIPTION,
 })
 
-export const createConnection = () => (dispatch: Dispatch<any>, getState: () => AppState) => {
+export const createConnection = () => (dispatch: Dispatch<any>) => {
   const newConnection = createEmptyConnection()
   dispatch(addConnection(newConnection))
   dispatch(selectConnection(newConnection.id))
 }
 
-export const setConnections = (connections: {[s: string]: ConnectionOptions}): Action => ({
+export const setConnections = (connections: { [s: string]: ConnectionOptions }): Action => ({
   connections,
   type: ActionTypes.CONNECTION_MANAGER_SET_CONNECTIONS,
 })
@@ -81,7 +143,7 @@ export const addConnection = (connection: ConnectionOptions): Action => ({
   type: ActionTypes.CONNECTION_MANAGER_ADD_CONNECTION,
 })
 
-export const toggleAdvancedSettings = (): Action  => ({
+export const toggleAdvancedSettings = (): Action => ({
   type: ActionTypes.CONNECTION_MANAGER_TOGGLE_ADVANCED_SETTINGS,
 })
 
@@ -104,16 +166,44 @@ export const deleteConnection = (connectionId: string) => (dispatch: Dispatch<an
 }
 
 async function ensureConnectionsHaveBeenInitialized() {
-  const connections = await persistantStorage.load(storedConnectionsIdentifier)
+  let connections = await persistentStorage.load(storedConnectionsIdentifier)
   const requiresInitialization = !connections
   if (requiresInitialization) {
     const migratedConnection = loadLegacyConnectionOptions()
     const defaultConnections = makeDefaultConnections()
-    persistantStorage.store(storedConnectionsIdentifier, {
+    connections = {
       ...migratedConnection,
       ...defaultConnections,
-    })
+    }
+    await persistentStorage.store(storedConnectionsIdentifier, connections)
 
     clearLegacyConnectionOptions()
   }
+
+  // Migrate connections, rewrite dictionary to "keep" it "ordered" (dictionaries do not have a guaranteed order)
+  const mayNeedMigrations = connections && connections['iot.eclipse.org']
+  if (connections && mayNeedMigrations) {
+    let newConnections = {}
+    for (const connection of Object.values(connections)) {
+      addMigratedConnection(newConnections, connection)
+    }
+
+    await persistentStorage.store(storedConnectionsIdentifier, newConnections)
+  }
+}
+
+function addMigratedConnection(newConnections: { [key: string]: ConnectionOptions }, connection: ConnectionOptions) {
+  // The host has been renamed, only change the host if it has not been changed
+  // Also check for ssl since SSL is not yet working
+  if (
+    connection.id === 'iot.eclipse.org' &&
+    connection.host === 'iot.eclipse.org' &&
+    connection.port === 1883 &&
+    !connection.encryption
+  ) {
+    connection.id = 'mqtt.eclipse.org'
+    connection.host = 'mqtt.eclipse.org'
+    connection.name = 'mqtt.eclipse.org'
+  }
+  newConnections[connection.id] = connection
 }

app/src/actions/Global.ts

@@ -1,6 +1,22 @@
-import { ActionTypes } from '../reducers'
+import { ActionTypes } from '../reducers/Global'
+import { Dispatch } from 'redux'
 
 export const showError = (error?: string) => ({
   error,
   type: ActionTypes.showError,
 })
+
+export const showNotification = (notification?: string) => ({
+  notification,
+  type: ActionTypes.showNotification,
+})
+
+export const didLaunch = () => ({
+  type: ActionTypes.didLaunch,
+})
+
+export const toggleSettingsVisibility = () => (dispatch: Dispatch<any>) => {
+  dispatch({
+    type: ActionTypes.toggleSettingsVisibility,
+  })
+}

app/src/actions/Publish.ts

@@ -1,9 +1,10 @@
 import { Action, ActionTypes } from '../reducers/Publish'
 import { AppState } from '../reducers'
+import { Base64Message } from '../../../backend/src/Model/Base64Message'
 import { Dispatch } from 'redux'
 import { makePublishEvent, rendererEvents } from '../../../events'
 
-export const setTopic = (topic?: string): Action  => {
+export const setTopic = (topic?: string): Action => {
   return {
     topic,
     type: ActionTypes.PUBLISH_SET_TOPIC,
@@ -31,7 +32,7 @@ export const setEditorMode = (editorMode: string): Action => {
   }
 }
 
-export const publish = (connectionId: string) => (dispatch: Dispatch<Action>, getState: () => AppState)  => {
+export const publish = (connectionId: string) => (dispatch: Dispatch<Action>, getState: () => AppState) => {
   const state = getState()
   const topic = state.publish.topic
 
@@ -42,7 +43,7 @@ export const publish = (connectionId: string) => (dispatch: Dispatch<Action>, ge
   const publishEvent = makePublishEvent(connectionId)
   const mqttMessage = {
     topic,
-    payload: state.publish.payload,
+    payload: state.publish.payload ? Base64Message.fromString(state.publish.payload) : null,
     retain: state.publish.retain,
     qos: state.publish.qos,
   }

app/src/actions/Settings.ts

@@ -1,65 +1,72 @@
 import * as q from '../../../backend/src/Model'
+import { ActionTypes, SettingsState, TopicOrder } from '../reducers/Settings'
 import { AppState } from '../reducers'
-import { autoExpandLimitSet } from '../components/Settings'
+import { autoExpandLimitSet } from '../components/SettingsDrawer/Settings'
+import { Base64Message } from '../../../backend/src/Model/Base64Message'
 import { batchActions } from 'redux-batched-actions'
-import { default as persistantStorage, StorageIdentifier } from '../PersistantStorage'
+import { default as persistentStorage, StorageIdentifier } from '../utils/PersistentStorage'
 import { Dispatch } from 'redux'
+import { globalActions } from './'
 import { showError } from './Global'
 import { showTree } from './Tree'
-import { TopicViewModel } from '../TopicViewModel'
-import {
-  ActionTypes,
-  SettingsState,
-  TopicOrder,
-} from '../reducers/Settings'
+import { TopicViewModel } from '../model/TopicViewModel'
 
 const settingsIdentifier: StorageIdentifier<Partial<SettingsState>> = {
   id: 'Settings',
 }
 
-export const loadSettings = () => async (dispatch: Dispatch<any>, _getState: () => AppState)  => {
+export const loadSettings = () => async (dispatch: Dispatch<any>, getState: () => AppState) => {
   try {
-    const settings = await persistantStorage.load(settingsIdentifier)
+    const settings = (await persistentStorage.load(settingsIdentifier)) || {}
     dispatch({
-      settings,
+      settings: getState().settings.merge(settings),
       type: ActionTypes.SETTINGS_DID_LOAD_SETTINGS,
     })
   } catch (error) {
     dispatch(showError(error))
   }
+  dispatch(globalActions.didLaunch())
 }
 
-export const storeSettings = () => async (dispatch: Dispatch<any>, getState: () => AppState)  => {
+export const storeSettings = () => async (dispatch: Dispatch<any>, getState: () => AppState) => {
   const settings = {
-    ...getState().settings,
+    ...getState().settings.toJS(),
+    autoExpandLimit: undefined,
     topicFilter: undefined,
     visible: undefined,
   }
 
   try {
-    await persistantStorage.store(settingsIdentifier, settings)
+    await persistentStorage.store(settingsIdentifier, settings)
   } catch (error) {
     dispatch(showError(error))
   }
 }
 
-export const setAutoExpandLimit = (autoExpandLimit: number = 0) => (dispatch: Dispatch<any>, getState: () => AppState) => {
+export const setAutoExpandLimit = (autoExpandLimit: number = 0) => (dispatch: Dispatch<any>) => {
   dispatch({
     autoExpandLimit,
     type: ActionTypes.SETTINGS_SET_AUTO_EXPAND_LIMIT,
   })
+}
+
+export const setTimeLocale = (timeLocale: string) => (dispatch: Dispatch<any>) => {
+  dispatch({
+    timeLocale,
+    type: ActionTypes.SETTINGS_SET_TIME_LOCALE,
+  })
   dispatch(storeSettings())
 }
 
-export const selectTopicWithMouseOver = (selectTopicWithMouseOver: boolean) => (dispatch: Dispatch<any>, getState: () => AppState) => {
+export const selectTopicWithMouseOver = (doSelect: boolean) => (dispatch: Dispatch<any>) => {
   dispatch({
-    selectTopicWithMouseOver,
+    selectTopicWithMouseOver: doSelect,
     type: ActionTypes.SETTINGS_SET_SELECT_TOPIC_WITH_MOUSE_OVER,
   })
   dispatch(storeSettings())
 }
 
-export const setValueDisplayMode = (valueRendererDisplayMode: 'diff' | 'raw') => (dispatch: Dispatch<any>, getState: () => AppState) => {
+export const setValueDisplayMode = (valueRendererDisplayMode: 'diff' | 'raw') => (dispatch: Dispatch<any>) => {
   dispatch({
     valueRendererDisplayMode,
     type: ActionTypes.SETTINGS_SET_VALUE_RENDERER_DISPLAY_MODE,
@@ -67,21 +74,14 @@ export const setValueDisplayMode = (valueRendererDisplayMode: 'diff' | 'raw') =
   dispatch(storeSettings())
 }
 
-export const toggleSettingsVisibility = () => (dispatch: Dispatch<any>, _getState: () => AppState) => {
-  dispatch({
-    type: ActionTypes.SETTINGS_TOGGLE_VISIBILITY,
-  })
-  dispatch(storeSettings())
-}
-
-export const togglehighlightTopicUpdates = () => (dispatch: Dispatch<any>, _getState: () => AppState) => {
+export const toggleHighlightTopicUpdates = () => (dispatch: Dispatch<any>) => {
   dispatch({
     type: ActionTypes.SETTINGS_TOGGLE_HIGHLIGHT_ACTIVITY,
   })
   dispatch(storeSettings())
 }
 
-export const setTopicOrder = (topicOrder: TopicOrder = TopicOrder.none) => (dispatch: Dispatch<any>, _getState: () => AppState) => {
+export const setTopicOrder = (topicOrder: TopicOrder = TopicOrder.none) => (dispatch: Dispatch<any>) => {
   dispatch({
     topicOrder,
     type: ActionTypes.SETTINGS_SET_TOPIC_ORDER,
@@ -89,7 +89,7 @@ export const setTopicOrder = (topicOrder: TopicOrder = TopicOrder.none) => (disp
   dispatch(storeSettings())
 }
 
-export const filterTopics = (filterStr: string) => (dispatch: Dispatch<any>, getState: () => AppState)  => {
+export const filterTopics = (filterStr: string) => (dispatch: Dispatch<any>, getState: () => AppState) => {
   const { tree } = getState().connection
 
   dispatch({
@@ -97,24 +97,35 @@ export const filterTopics = (filterStr: string) => (dispatch: Dispatch<any>, get
     type: ActionTypes.SETTINGS_FILTER_TOPICS,
   })
 
-  if (!filterStr || !tree) {
-    dispatch(batchActions([setAutoExpandLimit(0), (showTree(tree) as any)]))
+  if (!filterStr || !tree) {
+    dispatch(batchActions([setAutoExpandLimit(0), showTree(tree) as any]))
     return
   }
 
   const topicFilter = filterStr.toLowerCase()
 
   const nodeFilter = (node: q.TreeNode<TopicViewModel>): boolean => {
-    const topicMatches = node.path().toLowerCase().indexOf(topicFilter) !== -1
+    const topicMatches =
+      node
+        .path()
+        .toLowerCase()
+        .indexOf(topicFilter) !== -1
     if (topicMatches) {
       return true
     }
 
-    const messageMatches = (node.message && typeof node.message.value === 'string' && node.message.value.toLowerCase().indexOf(filterStr) !== -1)
+    const messageMatches =
+      node.message &&
+      node.message.value &&
+      Base64Message.toUnicodeString(node.message.value)
+        .toLowerCase()
+        .indexOf(filterStr) !== -1
+
     return Boolean(messageMatches)
   }
 
-  const resultTree = tree.childTopics()
+  const resultTree = tree
+    .childTopics()
     .filter(nodeFilter)
     .map((node: q.TreeNode<TopicViewModel>) => {
       const clone = node.unconnectedClone()
@@ -131,7 +142,7 @@ export const filterTopics = (filterStr: string) => (dispatch: Dispatch<any>, get
     nextTree.updateWithConnection(tree.updateSource, tree.connectionId, nodeFilter)
   }
 
-  dispatch(batchActions([setAutoExpandLimit(autoExpandLimitForTree(nextTree)), (showTree(nextTree) as any)]))
+  dispatch(batchActions([setAutoExpandLimit(autoExpandLimitForTree(nextTree)), showTree(nextTree) as any]))
 }
 
 function autoExpandLimitForTree(tree: q.Tree<TopicViewModel>) {
@@ -148,3 +159,13 @@ function autoExpandLimitForTree(tree: q.Tree<TopicViewModel>) {
 
   return closestExistingLimit(calculatedLimit)
 }
+
+export const toggleTheme = () => (dispatch: Dispatch<any>, getState: () => AppState) => {
+  dispatch({
+    type:
+      getState().settings.get('theme') === 'light'
+        ? ActionTypes.SETTINGS_SET_THEME_DARK
+        : ActionTypes.SETTINGS_SET_THEME_LIGHT,
+  })
+  dispatch(storeSettings())
+}

app/src/actions/Sidebar.ts

@@ -1,10 +1,11 @@
 import * as q from '../../../backend/src/Model'
-import { Action, Dispatch } from 'redux'
+import { ActionTypes } from '../reducers/Sidebar'
 import { AppState } from '../reducers'
+import { Dispatch } from 'redux'
 import { makePublishEvent, rendererEvents } from '../../../events'
 
 export const clearRetainedTopic = () => (dispatch: Dispatch<any>, getState: () => AppState) => {
-  const { selectedTopic } = getState().tree
+  const selectedTopic = getState().tree.get('selectedTopic')
   if (!selectedTopic) {
     return
   }
@@ -12,7 +13,17 @@ export const clearRetainedTopic = () => (dispatch: Dispatch<any>, getState: () =
   dispatch(clearTopic(selectedTopic, false))
 }
 
-export const clearTopic = (topic: q.TreeNode<any>, recursive: boolean, subtopicClearLimit = 50) => (dispatch: Dispatch<any>, getState: () => AppState)  => {
+export const setCompareMessage = (message?: q.Message) => (dispatch: Dispatch<any>) => {
+  dispatch({
+    message,
+    type: ActionTypes.SIDEBAR_SET_COMPARE_MESSAGE,
+  })
+}
+
+export const clearTopic = (topic: q.TreeNode<any>, recursive: boolean, subtopicClearLimit = 50) => (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
   const { connectionId } = getState().connection
   if (!connectionId) {
     return
@@ -25,15 +36,14 @@ export const clearTopic = (topic: q.TreeNode<any>, recursive: boolean, subtopicC
     retain: true,
     qos: 0 as 0,
   }
-  console.log('deleting', topic.path())
   rendererEvents.emit(publishEvent, mqttMessage)
 
   if (recursive) {
-    topic.childTopics()
+    topic
+      .childTopics()
       .filter(topic => Boolean(topic.message && topic.message.value))
       .slice(0, subtopicClearLimit)
-      .forEach((topic) => {
-        console.log('deleting', topic.path())
+      .forEach(topic => {
         const mqttMessage = {
           topic: topic.path(),
           payload: null,

app/src/actions/Tree.ts

@@ -1,59 +1,114 @@
 import * as q from '../../../backend/src/Model'
 import { ActionTypes } from '../reducers/Tree'
+import { ActionTypes as SidebarActionTypes } from '../reducers/Sidebar'
 import { AnyAction, Dispatch } from 'redux'
 import { AppState } from '../reducers'
 import { batchActions } from 'redux-batched-actions'
 import { setTopic } from './Publish'
-import { TopicViewModel } from '../TopicViewModel'
+import { TopicViewModel } from '../model/TopicViewModel'
+import { globalActions } from '.'
 const debounce = require('lodash.debounce')
 
-export const selectTopic = (topic: q.TreeNode<TopicViewModel>) => (dispatch: Dispatch<any>, getState: () => AppState)  => {
+export const selectTopic = (topic: q.TreeNode<TopicViewModel>) => (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+) => {
   debouncedSelectTopic(topic, dispatch, getState)
 }
 
-const debouncedSelectTopic = debounce((topic: q.TreeNode<TopicViewModel>, dispatch: Dispatch<any>, getState: () => AppState)  => {
-  const { selectedTopic } = getState().tree
-  if (selectedTopic === topic) {
-    return
-  }
+const debouncedSelectTopic = debounce(
+  (topic: q.TreeNode<TopicViewModel>, dispatch: Dispatch<any>, getState: () => AppState) => {
+    const previouslySelectedTopic = getState().tree.get('selectedTopic')
 
-  // Update publish topic
-  let setTopicDispatch: any | undefined
-  if (selectedTopic && (selectedTopic.path() === getState().publish.topic || !getState().publish.topic)) {
-    setTopicDispatch = setTopic(topic.path())
-  }
+    if (previouslySelectedTopic === topic) {
+      return
+    }
 
-  if (selectedTopic && selectedTopic.viewModel) {
-    selectedTopic.viewModel.setSelected(false)
-  }
+    // Update publish topic
+    let setTopicDispatch: any | undefined
+    if (!getState().publish.topic) {
+      setTopicDispatch = setTopic(topic.path())
+    } else if (previouslySelectedTopic && previouslySelectedTopic.path() === getState().publish.topic) {
+      setTopicDispatch = setTopic(topic.path())
+    }
 
-  if (topic.viewModel) {
-    topic.viewModel.setSelected(true)
-  }
+    if (previouslySelectedTopic && previouslySelectedTopic.viewModel) {
+      previouslySelectedTopic.viewModel.setSelected(false)
+    }
 
-  const selectTreeTopicDispatch = {
-    selectedTopic: topic,
-    type: ActionTypes.TREE_SELECT_TOPIC,
-  }
+    if (topic.viewModel) {
+      topic.viewModel.setSelected(true)
+    }
 
-  if (setTopicDispatch) {
-    dispatch(batchActions([selectTreeTopicDispatch, setTopicDispatch]))
-  } else {
-    dispatch(selectTreeTopicDispatch)
-  }
-}, 70)
+    const selectTreeTopicDispatch = {
+      selectedTopic: topic,
+      type: ActionTypes.TREE_SELECT_TOPIC,
+    }
 
-export const showTree = (tree?: q.Tree<TopicViewModel>) => (dispatch: Dispatch<any>, getState: () => AppState): AnyAction  => {
-  const visibleTree = getState().tree.tree
-  const connectionTree = getState().connection.tree
+    dispatch({
+      type: SidebarActionTypes.SIDEBAR_SET_COMPARE_MESSAGE,
+      message: undefined,
+    })
+
+    if (setTopicDispatch) {
+      dispatch(batchActions([selectTreeTopicDispatch, setTopicDispatch]))
+    } else {
+      dispatch(selectTreeTopicDispatch)
+    }
+  },
+  70
+)
+
+function destroyUnreferencedTree(state: AppState) {
+  const visibleTree = state.tree.get('tree')
+  const connectionTree = state.connection.tree
 
   // Stop updates of old tree
-  if (visibleTree !== connectionTree && visibleTree) {
+  if (visibleTree && visibleTree !== connectionTree) {
+    console.warn('destroy')
     visibleTree.stopUpdating()
+    visibleTree.destroy()
   }
+}
+
+export const resetStore = () => (dispatch: Dispatch<any>, getState: () => AppState): AnyAction => {
+  destroyUnreferencedTree(getState())
+
+  return dispatch({
+    type: ActionTypes.TREE_RESET_STORE,
+  })
+}
+
+export const showTree = (tree: q.Tree<TopicViewModel> | undefined) => (
+  dispatch: Dispatch<any>,
+  getState: () => AppState
+): AnyAction => {
+  destroyUnreferencedTree(getState())
 
   return dispatch({
     tree,
     type: ActionTypes.TREE_SHOW_TREE,
   })
 }
+
+export const togglePause = (tree?: q.Tree<TopicViewModel>) => (dispatch: Dispatch<any>, getState: () => AppState) => {
+  const paused = getState().tree.get('paused')
+  const tree = getState().tree.get('tree')
+  const changes = tree ? tree.unmergedChanges().length : 0
+
+  if (paused && changes > 0) {
+    dispatch(globalActions.showNotification('Applying recorded changes.'))
+  }
+
+  // Allow for notification to be displayed
+  setTimeout(() => {
+    tree && tree.applyUnmergedChanges()
+    if (paused && changes > 0) {
+      dispatch(globalActions.showNotification(`Sucessfully applied ${changes} changes.`))
+    }
+  }, 50)
+
+  dispatch({
+    type: paused ? ActionTypes.TREE_RESUME_UPDATES : ActionTypes.TREE_PAUSE_UPDATES,
+  })
+}

app/src/actions/UpdateNotifier.ts

@@ -1,13 +1,13 @@
-import { ActionTypes, CustomAction } from '../reducers'
+import { ActionTypes, GlobalAction } from '../reducers/Global'
 
-export const showUpdateNotification = (show: boolean): CustomAction => {
+export const showUpdateNotification = (show: boolean): GlobalAction => {
   return {
     type: ActionTypes.showUpdateNotification,
     showUpdateNotification: show,
   }
 }
 
-export const showUpdateDetails = (show: boolean): CustomAction => {
+export const showUpdateDetails = (show: boolean): GlobalAction => {
   return {
     type: ActionTypes.showUpdateDetails,
     showUpdateDetails: show,

app/src/actions/index.ts

@@ -1,10 +1,21 @@
+import * as chartActions from './Charts'
 import * as connectionActions from './Connection'
 import * as connectionManagerActions from './ConnectionManager'
 import * as globalActions from './Global'
 import * as publishActions from './Publish'
 import * as settingsActions from './Settings'
-import * as sidebarActons from './Sidebar'
+import * as sidebarActions from './Sidebar'
 import * as treeActions from './Tree'
 import * as updateNotifierActions from './UpdateNotifier'
 
-export { settingsActions, treeActions, publishActions, updateNotifierActions, connectionActions, sidebarActons, connectionManagerActions, globalActions }
+export {
+  settingsActions,
+  treeActions,
+  chartActions,
+  publishActions,
+  updateNotifierActions,
+  connectionActions,
+  sidebarActions,
+  connectionManagerActions,
+  globalActions,
+}

app/src/components/App.tsx

@@ -1,88 +1,88 @@
 import * as React from 'react'
-import ConnectionSetup from './components/ConnectionSetup/ConnectionSetup'
+import ConnectionSetup from './ConnectionSetup/ConnectionSetup'
 import CssBaseline from '@material-ui/core/CssBaseline'
 import ErrorBoundary from './ErrorBoundary'
-import Notification from './components/Notification'
-import Sidebar from './components/Sidebar/Sidebar'
-import TitleBar from './components/TitleBar'
-import Tree from './components/Tree/Tree'
+import Notification from './Layout/Notification'
+import TitleBar from './Layout/TitleBar'
 import UpdateNotifier from './UpdateNotifier'
-import { AppState } from './reducers'
+import { AppState } from '../reducers'
 import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
-import { default as SplitPane } from 'react-split-pane'
-import { globalActions, settingsActions } from './actions'
+import { globalActions, settingsActions } from '../actions'
 import { Theme, withStyles } from '@material-ui/core/styles'
 
-const Settings = React.lazy(() => import('./components/Settings'))
+const Settings = React.lazy(() => import('./SettingsDrawer/Settings'))
+const ContentView = React.lazy(() => import('./Layout/ContentView'))
 
 interface Props {
   connectionId: string
   classes: any
   settingsVisible: boolean
   error?: string
+  notification?: string
   actions: typeof globalActions
   settingsActions: typeof settingsActions
+  launching: boolean
 }
 
 class App extends React.PureComponent<Props, {}> {
   constructor(props: any) {
     super(props)
-    this.state = { }
+    this.state = {}
+  }
+
+  private renderNotification() {
+    const message = this.props.error || this.props.notification
+    const isError = message === this.props.error
+    if (message) {
+      // Guard in case someone ever calls showError with an error instead of a string
+      const str = typeof message === 'string' ? message : JSON.stringify(message)
+      return (
+        <Notification
+          message={str}
+          type={isError ? 'error' : 'notification'}
+          onClose={() => {
+            isError ? this.props.actions.showError(undefined) : this.props.actions.showNotification(undefined)
+          }}
+        />
+      )
+    }
+
+    return null
   }
 
   public componentDidMount() {
     this.props.settingsActions.loadSettings()
   }
 
-  private renderError() {
-    if (this.props.error) {
-      const error = typeof this.props.error === 'string' ? this.props.error : JSON.stringify(this.props.error)
-      return (
-        <Notification
-          message={error}
-          onClose={() => { this.props.actions.showError(undefined) }}
-        />
-      )
-    }
-  }
-
   public render() {
     const { settingsVisible } = this.props
     const { content, contentShift, centerContent, paneDefaults, heightProperty } = this.props.classes
 
+    if (this.props.launching) {
+      return null
+    }
+
     return (
       <div className={centerContent}>
         <CssBaseline />
         <ErrorBoundary>
-          {this.renderError()}
-          <React.Suspense fallback={<div>Loading...</div>}>
+          {this.renderNotification()}
+          <React.Suspense fallback={<div></div>}>
             <Settings />
           </React.Suspense>
           <div className={centerContent}>
             <div className={`${settingsVisible ? contentShift : content}`}>
-                <TitleBar />
+              <TitleBar />
             </div>
-            <div>
-              <SplitPane
-                step={20}
-                primary="second"
-                className={`${settingsVisible ? contentShift : content} ${heightProperty}`}
-                split="vertical"
-                minSize={250}
-                defaultSize={500}
-                resizerStyle={{ width: '2px', margin: '0 -10px 0 0px' }}
-                allowResize={true}
-                style={{ position: 'relative' }}
-                pane1Style={{ overflow: 'hidden' }}
-              >
-                <div className={paneDefaults}>
-                  <Tree />
-                </div>
-                <div className={paneDefaults}>
-                  <Sidebar connectionId={this.props.connectionId} />
-                </div>
-              </SplitPane>
+            <div className={settingsVisible ? contentShift : content}>
+              <React.Suspense fallback={<div></div>}>
+                <ContentView
+                  heightProperty={heightProperty}
+                  connectionId={this.props.connectionId}
+                  paneDefaults={paneDefaults}
+                />
+              </React.Suspense>
             </div>
           </div>
           <UpdateNotifier />
@@ -93,26 +93,20 @@ class App extends React.PureComponent<Props, {}> {
   }
 }
 
-const mapStateToProps = (state: AppState) => {
-  return {
-    settingsVisible: state.settings.visible,
-    connectionId: state.connection.connectionId,
-    error: state.globalState.error,
-    highlightTopicUpdates: state.settings.highlightTopicUpdates,
-  }
-}
-
 const styles = (theme: Theme) => {
   const drawerWidth = 300
+  const contentBaseStyle = {
+    width: '100vw',
+    backgroundColor: theme.palette.background.default,
+  }
+
   return {
     heightProperty: {
-      height: 'calc(100vh - 64px) !important',
+      height: '100%', // 'calc(100vh - 64px) !important',
     },
     paneDefaults: {
       backgroundColor: theme.palette.background.default,
       color: theme.palette.text.primary,
-      overflowY: 'scroll' as 'scroll',
-      overflowX: 'hidden' as 'hidden',
       display: 'block' as 'block',
       height: 'calc(100vh - 64px)',
     },
@@ -121,9 +115,7 @@ const styles = (theme: Theme) => {
       overflow: 'hidden' as 'hidden',
     },
     content: {
-      width: '100vw',
-      overflowX: 'hidden' as 'hidden',
-      backgroundColor: theme.palette.background.default,
+      ...contentBaseStyle,
       transition: theme.transitions.create('transform', {
         easing: theme.transitions.easing.sharp,
         duration: theme.transitions.duration.leavingScreen,
@@ -131,9 +123,7 @@ const styles = (theme: Theme) => {
       transform: 'translateX(0px)',
     },
     contentShift: {
-      overflowX: 'hidden' as 'hidden',
-      width: '100vw',
-      padding: 0,
+      ...contentBaseStyle,
       backgroundColor: theme.palette.background.default,
       transition: theme.transitions.create('transform', {
         easing: theme.transitions.easing.easeOut,
@@ -151,4 +141,20 @@ const mapDispatchToProps = (dispatch: any) => {
   }
 }
 
-export default withStyles(styles)(connect(mapStateToProps, mapDispatchToProps)(App))
+const mapStateToProps = (state: AppState) => {
+  return {
+    settingsVisible: state.globalState.get('settingsVisible'),
+    connectionId: state.connection.connectionId,
+    error: state.globalState.get('error'),
+    notification: state.globalState.get('notification'),
+    highlightTopicUpdates: state.settings.get('highlightTopicUpdates'),
+    launching: state.globalState.get('launching'),
+  }
+}
+
+export default withStyles(styles)(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps
+  )(App)
+)

app/src/components/ChartPanel/Chart.tsx

@@ -0,0 +1,97 @@
+import * as q from '../../../../backend/src/Model'
+import * as React from 'react'
+import TopicPlot from '../TopicPlot'
+import { AppState } from '../../reducers'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../actions'
+import { ChartParameters } from '../../reducers/Charts'
+import { connect } from 'react-redux'
+import { Paper } from '@material-ui/core'
+import ChartTitle from './ChartTitle'
+import { ChartActions } from './ChartActions'
+const throttle = require('lodash.throttle')
+
+interface Props {
+  parameters: ChartParameters
+  treeNode?: q.TreeNode<any>
+  actions: {
+    chart: typeof chartActions
+  }
+}
+
+/**
+ * Subscribes to onMessage of treeNode
+ */
+function useMessageSubscriptionToUpdate(treeNode?: q.TreeNode<any>) {
+  const [lastUpdated, setLastUpdate] = React.useState(0)
+  function subscribeToMessageUpdates() {
+    const onUpdateCallback = throttle(() => setLastUpdate(treeNode ? treeNode.lastUpdate : 0), 300)
+    treeNode && treeNode.onMessage.subscribe(onUpdateCallback)
+
+    return function cleanup() {
+      treeNode && treeNode.onMessage.unsubscribe(onUpdateCallback)
+    }
+  }
+  React.useEffect(subscribeToMessageUpdates, [treeNode])
+}
+
+function Chart(props: Props) {
+  const { parameters, treeNode } = props
+  const [freezedHistory, setHistory] = React.useState<q.MessageHistory | undefined>()
+  useMessageSubscriptionToUpdate(treeNode)
+
+  const togglePause = React.useCallback(() => {
+    if (!props.treeNode) {
+      return
+    }
+    setHistory(freezedHistory ? undefined : props.treeNode.messageHistory.clone())
+  }, [props.treeNode, freezedHistory])
+
+  const onRemove = React.useCallback(() => {
+    props.actions.chart.removeChart(props.parameters)
+  }, [props.parameters])
+
+  return (
+    <Paper
+      style={{ padding: '8px' }}
+      data-test-type="ChartPaper"
+      data-test={`${props.parameters.topic}-${props.parameters.dotPath || ''}`}
+    >
+      <div style={{ display: 'flex' }}>
+        <div style={{ display: 'flex', flexGrow: 1, overflow: 'hidden' }}>
+          <ChartTitle parameters={parameters} />
+          <ChartActions
+            parameters={parameters}
+            onRemove={onRemove}
+            paused={Boolean(freezedHistory)}
+            togglePause={togglePause}
+          />
+        </div>
+      </div>
+      {props.treeNode ? (
+        <TopicPlot
+          color={props.parameters.color}
+          interpolation={props.parameters.interpolation}
+          range={props.parameters.range ? [props.parameters.range.from, props.parameters.range.to] : undefined}
+          history={freezedHistory ? freezedHistory : props.treeNode.messageHistory}
+          dotPath={parameters.dotPath}
+        />
+      ) : (
+        <span>No data</span>
+      )}
+    </Paper>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(Chart)

app/src/components/ChartPanel/ChartActions.tsx

@@ -0,0 +1,26 @@
+import * as React from 'react'
+import Play from '@material-ui/icons/PlayArrow'
+import Pause from '@material-ui/icons/PauseCircleFilled'
+import Clear from '@material-ui/icons/Clear'
+import CustomIconButton from '../helper/CustomIconButton'
+import { ChartParameters } from '../../reducers/Charts'
+import { SettingsButton } from './ChartSettings/SettingsButton'
+
+export function ChartActions(props: {
+  paused: boolean
+  togglePause: () => void
+  parameters: ChartParameters
+  onRemove: () => void
+}) {
+  return (
+    <div style={{ display: 'flex' }}>
+      <CustomIconButton tooltip={props.paused ? 'Resume chart' : 'Pause chart'} onClick={props.togglePause}>
+        {props.paused ? <Play /> : <Pause />}
+      </CustomIconButton>
+      <SettingsButton parameters={props.parameters} />
+      <CustomIconButton tooltip="Remove chart" onClick={props.onRemove}>
+        <Clear data-test-type="RemoveChart" data-test={`${props.parameters.topic}-${props.parameters.dotPath || ''}`} />
+      </CustomIconButton>
+    </div>
+  )
+}

app/src/components/ChartPanel/ChartSettings/ColorSettings.tsx

@@ -0,0 +1,71 @@
+import * as React from 'react'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+import { ChartParameters } from '../../../reducers/Charts'
+import { connect } from 'react-redux'
+import { Menu, MenuItem } from '@material-ui/core'
+import { colors as createColors } from './colors'
+
+function chartParametersForColor(chart: ChartParameters, color?: string) {
+  return {
+    color,
+    topic: chart.topic,
+    dotPath: chart.dotPath,
+  }
+}
+
+const colors: Array<string> = createColors()
+
+function ColorSettings(props: {
+  chart: ChartParameters
+  actions: {
+    chart: typeof chartActions
+  }
+  anchorEl?: Element
+  open: boolean
+  close: () => void
+}) {
+  const setColor = React.useCallback(
+    (color?: string) => props.actions.chart.updateChart(chartParametersForColor(props.chart, color)),
+    [props.chart]
+  )
+
+  const menuItems = React.useMemo(() => {
+    return colors.map(color => (
+      <MenuItem
+        style={{ minWidth: '8em', minHeight: '36px', backgroundColor: color, textAlign: 'center' }}
+        key={color}
+        onClick={() => setColor(color)}
+      >
+        {props.chart.color === color ? 'X' : ''}
+      </MenuItem>
+    ))
+  }, [colors, props.chart])
+
+  return (
+    <Menu anchorEl={props.anchorEl} open={props.open} onClose={props.close}>
+      <MenuItem
+        style={{ minWidth: '8em', minHeight: '36px', textAlign: 'center' }}
+        key="none"
+        onClick={() => setColor()}
+        selected={props.chart.color === undefined}
+      >
+        default
+      </MenuItem>
+      {menuItems}
+    </Menu>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(ColorSettings)

app/src/components/ChartPanel/ChartSettings/InterpolationSettings.tsx

@@ -0,0 +1,66 @@
+import * as React from 'react'
+import { AppState } from '../../../reducers'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+import { ChartParameters, PlotCurveTypes } from '../../../reducers/Charts'
+import { connect } from 'react-redux'
+import { Menu, MenuItem } from '@material-ui/core'
+
+function chartParametersForAction(chart: ChartParameters, action: string) {
+  return {
+    topic: chart.topic,
+    dotPath: chart.dotPath,
+    interpolation: action as any,
+  }
+}
+
+const curves: Array<PlotCurveTypes> = ['curve', 'linear', 'step_after', 'step_before', 'cubic_basis_spline']
+
+function InterpolationSettings(props: {
+  chart: ChartParameters
+  actions: {
+    chart: typeof chartActions
+  }
+  anchorEl?: Element
+  open: boolean
+  close: () => void
+}) {
+  const callbacks = React.useMemo(() => {
+    const createCurveCallback = (curve: PlotCurveTypes) => () => {
+      props.actions.chart.updateChart(chartParametersForAction(props.chart, curve))
+    }
+
+    const callbacks: { [key: string]: () => void } = {}
+    for (const curve of curves) {
+      callbacks[curve] = createCurveCallback(curve)
+    }
+    return callbacks
+  }, [curves])
+
+  const menuItems = React.useMemo(() => {
+    return curves.map(curve => (
+      <MenuItem key={curve} onClick={callbacks[curve]} selected={props.chart.interpolation === curve}>
+        {curve.replace(/_/g, ' ')}
+      </MenuItem>
+    ))
+  }, [curves, props.chart])
+
+  return (
+    <Menu anchorEl={props.anchorEl} open={props.open} onClose={props.close}>
+      {menuItems}
+    </Menu>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(InterpolationSettings)

app/src/components/ChartPanel/ChartSettings/MoveUp.tsx

@@ -0,0 +1,35 @@
+import * as React from 'react'
+import { ChartParameters } from '../../../reducers/Charts'
+import { Menu, MenuItem, TextField, Typography } from '@material-ui/core'
+import { connect } from 'react-redux'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+
+function MoveUp(props: { actions: { chart: typeof chartActions }; chart: ChartParameters; close: () => void }) {
+  const moveUp = React.useCallback(() => {
+    props.actions.chart.moveChartUp({
+      topic: props.chart.topic,
+      dotPath: props.chart.dotPath,
+    })
+    props.close()
+  }, [props.chart])
+
+  return (
+    <MenuItem key="size" onClick={moveUp}>
+      Move up
+    </MenuItem>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(MoveUp)

app/src/components/ChartPanel/ChartSettings/RangeSettings.tsx

@@ -0,0 +1,72 @@
+import * as React from 'react'
+import { ChartParameters } from '../../../reducers/Charts'
+import { Menu, MenuItem, TextField, Typography } from '@material-ui/core'
+import { connect } from 'react-redux'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+
+function RangeSettings(props: {
+  actions: { chart: typeof chartActions }
+  chart: ChartParameters
+  anchorEl?: Element
+  open: boolean
+  onClose: () => void
+}) {
+  const dismissClick = React.useCallback((e: React.MouseEvent) => e.stopPropagation(), [])
+  const [rangeFrom, setRangeFrom] = React.useState<string | number | undefined>(
+    props.chart.range && props.chart.range.from
+  )
+  const [rangeTo, setRangeTo] = React.useState<string | number | undefined>(props.chart.range && props.chart.range.to)
+
+  React.useEffect(() => {
+    const from = parseFloat(rangeFrom as any)
+    const to = parseFloat(rangeTo as any)
+    props.actions.chart.updateChart({
+      topic: props.chart.topic,
+      dotPath: props.chart.dotPath,
+      range: {
+        from: isNaN(from) ? undefined : from,
+        to: isNaN(to) ? undefined : to,
+      },
+    })
+  }, [rangeFrom, rangeTo])
+
+  const setFromHandler = React.useCallback((e: React.ChangeEvent<HTMLInputElement>) => setRangeFrom(e.target.value), [])
+  const setToHandler = React.useCallback((e: React.ChangeEvent<HTMLInputElement>) => setRangeTo(e.target.value), [])
+  return (
+    <Menu style={{ textAlign: 'center' }} anchorEl={props.anchorEl} open={props.open} onClose={props.onClose}>
+      <Typography>Define custom ranges for the Y-Axis</Typography>
+      <div style={{ padding: '0 16px' }}>
+        <TextField
+          style={{ marginTop: '0' }}
+          onClick={dismissClick}
+          label="from"
+          value={rangeFrom}
+          onChange={setFromHandler}
+          margin="normal"
+        />
+        <TextField
+          style={{ marginLeft: '8px', marginTop: '0' }}
+          onClick={dismissClick}
+          label="to"
+          value={rangeTo}
+          onChange={setToHandler}
+          margin="normal"
+        />
+      </div>
+    </Menu>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(RangeSettings)

app/src/components/ChartPanel/ChartSettings/SettingsButton.tsx

@@ -0,0 +1,30 @@
+import * as React from 'react'
+import ChartSettings from '.'
+import CustomIconButton from '../../helper/CustomIconButton'
+import MoreVertIcon from '@material-ui/icons/Settings'
+import { ChartParameters } from '../../../reducers/Charts'
+
+export function SettingsButton(props: { parameters: ChartParameters }) {
+  const [visible, setVisible] = React.useState(false)
+  const settingsRef = React.useRef()
+  const toggleSettings = React.useCallback(() => {
+    setVisible(!visible)
+  }, [visible])
+
+  const close = React.useCallback(() => {
+    setVisible(false)
+  }, [])
+
+  return (
+    <span>
+      <ChartSettings open={visible} close={close} anchorEl={settingsRef} chart={props.parameters} />
+      <CustomIconButton tooltip="Chart settings" onClick={toggleSettings}>
+        <MoreVertIcon
+          ref={settingsRef as any}
+          data-test-type="ChartSettings"
+          data-test={`${props.parameters.topic}-${props.parameters.dotPath || ''}`}
+        />
+      </CustomIconButton>
+    </span>
+  )
+}

app/src/components/ChartPanel/ChartSettings/Size.tsx

@@ -0,0 +1,53 @@
+import * as React from 'react'
+import { ChartParameters } from '../../../reducers/Charts'
+import { Menu, MenuItem, TextField, Typography } from '@material-ui/core'
+import { connect } from 'react-redux'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+
+function Size(props: {
+  actions: { chart: typeof chartActions }
+  chart: ChartParameters
+  anchorEl?: Element
+  open: boolean
+  close: () => void
+}) {
+  const setChartWidth = (width?: 'big' | 'medium' | 'small') => () => {
+    props.actions.chart.updateChart({
+      width,
+      topic: props.chart.topic,
+      dotPath: props.chart.dotPath,
+    })
+    props.close()
+  }
+
+  return (
+    <Menu anchorEl={props.anchorEl} open={props.open} onClose={props.close}>
+      <MenuItem selected={props.chart.width === undefined} onClick={setChartWidth()}>
+        auto
+      </MenuItem>
+      <MenuItem selected={props.chart.width === 'big'} onClick={setChartWidth('big')}>
+        100% width
+      </MenuItem>
+      <MenuItem selected={props.chart.width === 'medium'} onClick={setChartWidth('medium')}>
+        50% width
+      </MenuItem>
+      <MenuItem selected={props.chart.width === 'small'} onClick={setChartWidth('small')}>
+        33% width
+      </MenuItem>
+    </Menu>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(Size)

app/src/components/ChartPanel/ChartSettings/colors.ts

@@ -0,0 +1,46 @@
+import {
+  amber,
+  orange,
+  pink,
+  purple,
+  deepPurple,
+  teal,
+  red,
+  green,
+  lime,
+  indigo,
+  yellow,
+  brown,
+  blueGrey,
+} from '@material-ui/core/colors'
+
+export function colors() {
+  function colorToInt(color: string): [number, number, number] {
+    const str = color.replace('#', '')
+    return [parseInt(str.slice(0, 2), 16), parseInt(str.slice(2, 4), 16), parseInt(str.slice(4, 6), 16)]
+  }
+  function colorCompare(colorA: string, colorB: string) {
+    const a = colorToInt(colorA)
+    const b = colorToInt(colorB)
+    return Math.sqrt(Math.pow(a[0] - b[0], 2) + Math.pow(a[1] - b[1], 2) + Math.pow(a[2] - b[2], 2))
+  }
+  const colors: Array<string> = [
+    brown,
+    blueGrey,
+    amber,
+    orange,
+    pink,
+    purple,
+    deepPurple,
+    teal,
+    red,
+    green,
+    lime,
+    indigo,
+    yellow,
+  ]
+    .map(color => [color[200], color[500], color[700]])
+    .reduce((a, b) => a.concat(b), [])
+    .sort((a, b) => colorCompare(a, b))
+  return colors
+}

app/src/components/ChartPanel/ChartSettings/index.tsx

@@ -0,0 +1,79 @@
+import * as React from 'react'
+import InterpolationSettings from './InterpolationSettings'
+import { ChartParameters } from '../../../reducers/Charts'
+import { Menu, MenuItem } from '@material-ui/core'
+import RangeSettings from './RangeSettings'
+import Size from './Size'
+import MoveUp from './MoveUp'
+import ColorSettings from './ColorSettings'
+
+function ChartSettings(props: {
+  open: boolean
+  close: () => void
+  chart: ChartParameters
+  anchorEl: React.MutableRefObject<undefined>
+}) {
+  const [rangeVisible, setRangeVisible] = React.useState(false)
+  const [interpolationVisible, setInterpolationVisible] = React.useState(false)
+  const [sizeVisible, setSizeVisible] = React.useState(false)
+  const [colorVisible, setColorVisible] = React.useState(false)
+
+  const toggleRange = React.useCallback(() => {
+    if (open) {
+      props.close()
+    }
+    setRangeVisible(!rangeVisible)
+  }, [rangeVisible, open])
+
+  const toggleInterpolation = React.useCallback(() => {
+    if (open) {
+      props.close()
+    }
+    setInterpolationVisible(!interpolationVisible)
+  }, [interpolationVisible, open])
+
+  const toggleSize = React.useCallback(() => {
+    if (open) {
+      props.close()
+    }
+    setSizeVisible(!sizeVisible)
+  }, [sizeVisible, open])
+
+  const toggleColor = React.useCallback(() => {
+    if (open) {
+      props.close()
+    }
+    setColorVisible(!colorVisible)
+  }, [colorVisible, open])
+
+  return (
+    <span>
+      <Menu id="long-menu" anchorEl={props.anchorEl.current} open={props.open} onClose={props.close}>
+        <MenuItem key="range" onClick={toggleRange}>
+          Set range
+        </MenuItem>
+        <MenuItem key="interpolation" onClick={toggleInterpolation}>
+          Curve interpolation
+        </MenuItem>
+        <MenuItem key="size" onClick={toggleSize}>
+          Size
+        </MenuItem>
+        <MenuItem key="color" onClick={toggleColor}>
+          Color
+        </MenuItem>
+        <MoveUp chart={props.chart} close={props.close} />
+      </Menu>
+      <RangeSettings chart={props.chart} anchorEl={props.anchorEl.current} open={rangeVisible} onClose={toggleRange} />
+      <InterpolationSettings
+        chart={props.chart}
+        anchorEl={props.anchorEl.current}
+        open={interpolationVisible}
+        close={toggleInterpolation}
+      />
+      <Size chart={props.chart} anchorEl={props.anchorEl.current} open={sizeVisible} close={toggleSize} />
+      <ColorSettings chart={props.chart} anchorEl={props.anchorEl.current} open={colorVisible} close={toggleColor} />
+    </span>
+  )
+}
+
+export default ChartSettings

app/src/components/ChartPanel/ChartTitle.tsx

@@ -0,0 +1,29 @@
+import * as React from 'react'
+import { ChartParameters } from '../../reducers/Charts'
+import { Typography, Theme, withStyles } from '@material-ui/core'
+
+function ChartTitle(props: { parameters: ChartParameters; classes: any }) {
+  const { classes, parameters } = props
+  return (
+    <div style={{ flexGrow: 1, overflow: 'hidden', textOverflow: 'ellipsis' }}>
+      <Typography variant="caption" className={classes.topic}>
+        {parameters.dotPath ? parameters.dotPath : parameters.topic}
+      </Typography>
+      <br />
+      <Typography variant="caption" className={classes.topic}>
+        {parameters.dotPath ? parameters.topic : <span dangerouslySetInnerHTML={{ __html: '&nbsp;' }}></span>}
+      </Typography>
+    </div>
+  )
+}
+
+const styles = (theme: Theme) => ({
+  topic: {
+    wordBreak: 'break-all' as 'break-all',
+    whiteSpace: 'nowrap' as 'nowrap',
+    overflow: 'hidden' as 'hidden',
+    textOverflow: 'ellipsis' as 'ellipsis',
+  },
+})
+
+export default withStyles(styles)(ChartTitle)

app/src/components/ChartPanel/ChartWithTreeNode.tsx

@@ -0,0 +1,50 @@
+import * as q from '../../../../backend/src/Model'
+import * as React from 'react'
+import Chart from './Chart'
+import { ChartParameters } from '../../reducers/Charts'
+
+interface Props {
+  tree?: q.Tree<any>
+  parameters: ChartParameters
+}
+
+export function ChartWithTreeNode(props: Props) {
+  const { tree, parameters } = props
+  if (!tree) {
+    return null
+  }
+
+  const initialTreeNode = tree.findNode(parameters.topic)
+  const [treeNode, setTreeNode] = React.useState<q.TreeNode<any> | undefined>(initialTreeNode)
+
+  usePollingToFetchTreeNode(treeNode, tree, parameters.topic, setTreeNode)
+  return <Chart treeNode={treeNode} parameters={parameters} />
+}
+
+/**
+ * If a node is not available when the plot is shown, keep polling until it has been created
+ */
+function usePollingToFetchTreeNode(
+  treeNode: q.TreeNode<any> | undefined,
+  tree: q.Tree<any>,
+  path: string,
+  setTreeNode: React.Dispatch<React.SetStateAction<q.TreeNode<any> | undefined>>
+) {
+  function pollUntilTreeNodeHasBeenFound() {
+    let intervalTimer: any
+    if (!treeNode) {
+      intervalTimer = setInterval(() => {
+        const node = tree.findNode(path)
+        if (node) {
+          setTreeNode(node)
+          clearInterval(intervalTimer)
+        }
+      }, 500)
+    }
+    return function cleanup() {
+      intervalTimer && clearInterval(intervalTimer)
+    }
+  }
+
+  React.useEffect(pollUntilTreeNodeHasBeenFound, [])
+}

app/src/components/ChartPanel/index.tsx

@@ -0,0 +1,132 @@
+import * as q from '../../../../backend/src/Model'
+import * as React from 'react'
+import ShowChart from '@material-ui/icons/ShowChart'
+import { AppState } from '../../reducers'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../actions'
+import { ChartParameters } from '../../reducers/Charts'
+import { ChartWithTreeNode } from './ChartWithTreeNode'
+import { connect } from 'react-redux'
+import { Grid, Theme, Typography, withStyles } from '@material-ui/core'
+import { List } from 'immutable'
+const { TransitionGroup, CSSTransition } = require('react-transition-group/esm')
+
+interface Props {
+  charts: List<ChartParameters>
+  connectionId?: string
+  tree?: q.Tree<any>
+  actions: {
+    chart: typeof chartActions
+  }
+  classes: any
+}
+
+function spacingForChartCount(count: number): 4 | 6 | 12 {
+  if (count >= 5) {
+    return 4
+  } else if (count >= 2) {
+    return 6
+  } else {
+    return 12
+  }
+}
+
+function mapWidth(width: 'big' | 'medium' | 'small' | undefined, calculatedSpacing: 4 | 6 | 12): 4 | 6 | 12 {
+  switch (width) {
+    case 'big':
+      return 12
+    case 'medium':
+      return 6
+    case 'small':
+      return 4
+    default:
+      return calculatedSpacing
+  }
+}
+
+function ChartPanel(props: Props) {
+  const chartsInView = props.charts.count()
+
+  const [spacing, setSpacing] = React.useState(spacingForChartCount(chartsInView))
+
+  React.useEffect(() => {
+    props.actions.chart.loadCharts()
+  }, [props.connectionId])
+
+  // Update spacing after animations have completed
+  React.useEffect(() => {
+    const newSpacing = spacingForChartCount(chartsInView)
+    if (newSpacing > spacing) {
+      setTimeout(() => setSpacing(newSpacing), 500)
+    } else {
+      setSpacing(newSpacing)
+    }
+  }, [chartsInView])
+
+  const charts = props.charts.map(chartParameters => (
+    <CSSTransition
+      key={`${chartParameters.topic}-${chartParameters.dotPath || ''}`}
+      timeout={{ enter: 500, exit: 500 }}
+      classNames="example"
+    >
+      <Grid item xs={mapWidth(chartParameters.width, spacing)}>
+        <ChartWithTreeNode tree={props.tree} parameters={chartParameters} />
+      </Grid>
+    </CSSTransition>
+  ))
+
+  return (
+    <div className={props.classes.container}>
+      <Grid container spacing={1}>
+        <TransitionGroup component={null} className="example">
+          {charts}
+        </TransitionGroup>
+        {chartsInView === 0 ? <NoCharts key="noCharts" /> : null}
+      </Grid>
+    </div>
+  )
+}
+
+function NoCharts() {
+  return (
+    <div style={{ width: '100%', textAlign: 'center' }}>
+      <Typography variant="h2">No charts selected</Typography>
+      <Typography>Select a numeric values from the value preview.</Typography>
+      <Typography>
+        Click on <ShowChart /> to add a topic / value to this panel.
+      </Typography>
+    </div>
+  )
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    charts: state.charts.get('charts'),
+    connectionId: state.connection.connectionId,
+    tree: state.connection.tree,
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+const styles = (theme: Theme) => ({
+  container: {
+    backgroundColor: theme.palette.background.default,
+    width: '100%',
+    height: '100%',
+    padding: '8px',
+    flex: 1,
+    overflow: 'hidden scroll',
+  },
+})
+
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withStyles(styles)(ChartPanel))

app/src/components/CodeDiff.tsx

@@ -1,149 +0,0 @@
-import * as diff from 'diff'
-import * as Prism from 'prismjs'
-import * as React from 'react'
-import { Theme, withStyles } from '@material-ui/core'
-import 'prismjs/components/prism-json'
-import 'prismjs/themes/prism-tomorrow.css'
-
-interface Props {
-  previous: string
-  current: string
-  nameOfCompareMessage: string
-  language?: 'json'
-  classes: any
-}
-
-class CodeDiff extends React.Component<Props, {}> {
-  constructor(props: Props) {
-    super(props)
-  }
-
-  public render() {
-    const changes = diff.diffLines(this.props.previous, this.props.current)
-    const styledLines = Prism.highlight(this.props.current, Prism.languages.json).split('\n')
-
-    let lineNumber = 0
-    const code = changes.map((change, key) => {
-      const hasStyledCode = change.removed !== true
-      const changedLines = change.count || 0
-      if (hasStyledCode && this.props.language === 'json') {
-        const currentLines = styledLines.slice(lineNumber, lineNumber + changedLines)
-        const lines = currentLines.map((l, idx) => {
-          return <div key={`${key}-${idx}`} className={this.props.classes.line}><span className={this.cssClassForChange(change)} dangerouslySetInnerHTML={{ __html: l }} /></div>
-        })
-        lineNumber += changedLines
-
-        return <div key={key}>{lines}</div>
-      }
-
-      return this.trimNewlineRight(change.value)
-        .split('\n')
-        .map((line, idx) => {
-          return <div key={`${key}-${idx}`} className={this.props.classes.line}><span className={this.cssClassForChange(change)}>{line}</span></div>
-        })
-    })
-
-    return (
-      <div>
-        <pre className={`language-json ${this.props.classes.codeBlock}`}>
-          {code}
-        </pre>
-        {this.renderChangeAmount(changes)}
-      </div>
-    )
-  }
-
-  private renderChangeAmount(changes: Diff.Change[]) {
-    const additions = changes.map(change => (change.added === true) ? (change.count || 0) : 0).reduce((a, b) => a + b)
-    const deletions = changes.map(change => (change.removed === true) ? (change.count || 0) : 0).reduce((a, b) => a + b)
-    if (additions === 0 && deletions === 0) {
-      return null
-    }
-
-    return (
-      <span style={{ display: 'block', marginBottom: '8px', float: 'right' }}>
-        <span>
-          Comparing with <b>{this.props.nameOfCompareMessage}</b> message:&nbsp;
-
-          <span className={this.props.classes.additions}>+ {additions} line{additions === 1 ? '' : 's'}</span>
-          , <span className={this.props.classes.deletions}>- {deletions} line{deletions === 1 ? '' : 's'}</span>
-        </span>
-      </span>
-    )
-  }
-
-  private trimNewlineRight(str: string) {
-    if (str.slice(-1) === '\n') {
-      return str.slice(0, -1)
-    }
-
-    return str
-  }
-
-  private cssClassForChange(change: diff.Change) {
-    if (change.added === true) {
-      return this.props.classes.addition
-    }
-
-    if (change.removed === true) {
-      return this.props.classes.deletion
-    }
-
-    return this.props.classes.noChange
-  }
-}
-
-const style = (theme: Theme) => {
-  const baseStyle = {
-    width: '100%',
-  }
-  const before = {
-    margin: '0 2px 0 -9px',
-  }
-  return {
-    additions: {
-      color: 'rgb(10, 255, 10)',
-    },
-    deletions: {
-      color: 'rgb(255, 10, 10)',
-    },
-    line: {
-      lineHeight: 'normal',
-    },
-    codeBlock: {
-      fontSize: '12px',
-      maxHeight: '200px',
-      marginLeft: '-16px',
-    },
-    noChange: {
-      ...baseStyle,
-      '&:before': {
-        ...before,
-      },
-    },
-    deletion: {
-      ...baseStyle,
-      backgroundColor: 'rgba(255, 10, 10, 0.3)',
-      '&:before': {
-        ...before,
-        content: "'-'",
-      },
-      '&:hover': {
-        backgroundColor: 'rgba(255, 10, 10, 0.6)',
-      },
-    },
-    addition: {
-      ...baseStyle,
-      backgroundColor: 'rgba(10, 255, 10, 0.3)',
-      '&:hover': {
-        backgroundColor: 'rgba(10, 255, 10, 0.5)',
-      },
-      '&:before': {
-        ...before,
-        content: "'+'",
-      },
-    },
-  }
-}
-
-export default withStyles(style)(CodeDiff)

app/src/components/ConnectionSetup/AddButton.tsx

@@ -14,18 +14,9 @@ const styles = (theme: Theme) => ({
   },
 })
 
-export const AddButton = withStyles(styles)((props: {
-  classes: any,
-  action: any,
-}) => {
+export const AddButton = withStyles(styles)((props: { classes: any; action: any }) => {
   return (
-    <Fab
-      size="small"
-      color="secondary"
-      aria-label="Add"
-      className={props.classes.addButton}
-      onClick={props.action}
-    >
+    <Fab size="small" color="secondary" aria-label="Add" className={props.classes.addButton} onClick={props.action}>
       <Add className={props.classes.addIcon} />
     </Fab>
   )

app/src/components/ConnectionSetup/AdvancedConnectionSettings.tsx

@@ -1,12 +1,14 @@
 import * as React from 'react'
 import Add from '@material-ui/icons/Add'
+import ClearAdornment from '../helper/ClearAdornment'
 import Delete from '@material-ui/icons/Delete'
+import Lock from '@material-ui/icons/Lock'
 import Undo from '@material-ui/icons/Undo'
 import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
 import { connectionManagerActions } from '../../actions'
 import { ConnectionOptions } from '../../model/ConnectionOptions'
-import { StyleRulesCallback, Theme, withStyles } from '@material-ui/core/styles'
+import { Theme, withStyles } from '@material-ui/core/styles'
 
 import {
   Button,
@@ -16,6 +18,8 @@ import {
   List,
   ListItem,
   ListItemText,
+  Tooltip,
+  Typography,
 } from '@material-ui/core'
 
 interface Props {
@@ -40,6 +44,40 @@ class ConnectionSettings extends React.Component<Props, State> {
     })
   }
 
+  private renderCertificateInfo() {
+    if (!this.props.connection.selfSignedCertificate) {
+      return null
+    }
+
+    return (
+      <span>
+        <Tooltip title={this.props.connection.selfSignedCertificate.name}>
+          <Typography className={this.props.classes.certificateName}>
+            <ClearAdornment action={this.clearCertificate} value={this.props.connection.selfSignedCertificate.name} />
+            {this.props.connection.selfSignedCertificate.name}
+          </Typography>
+        </Tooltip>
+      </span>
+    )
+  }
+
+  private clearCertificate = () => {
+    this.props.managerActions.updateConnection(this.props.connection.id, {
+      selfSignedCertificate: undefined,
+    })
+  }
+
+  private renderSubscriptions() {
+    const connection = this.props.connection
+    return connection.subscriptions.map(subscription => (
+      <Subscription
+        deleteAction={() => this.props.managerActions.deleteSubscription(subscription, connection.id)}
+        subscription={subscription}
+        key={subscription}
+      />
+    ))
+  }
+
   public render() {
     const { classes } = this.props
     return (
@@ -51,30 +89,29 @@ class ConnectionSettings extends React.Component<Props, State> {
                 className={classes.fullWidth}
                 label="Subscription"
                 margin="normal"
-                onChange={(event: React.ChangeEvent<HTMLInputElement>) => this.setState({ subscription: event.target.value })}
+                onChange={(event: React.ChangeEvent<HTMLInputElement>) =>
+                  this.setState({ subscription: event.target.value })
+                }
               />
             </Grid>
             <Grid item={true} xs={2} className={classes.gridPadding}>
               <Button
                 className={classes.button}
                 color="secondary"
-                onClick={() => this.props.managerActions.addSubscription(this.state.subscription, this.props.connection.id)}
+                onClick={() =>
+                  this.props.managerActions.addSubscription(this.state.subscription, this.props.connection.id)
+                }
                 variant="contained"
               >
                 <Add /> Add
               </Button>
             </Grid>
             <Grid item={true} xs={12} style={{ padding: 0 }}>
-              <List
-                className={`${classes.topicList} advanced-connection-settings-topic-list`}
-                component="nav"
-              >
-                <div className={classes.list}>
-                  {this.renderSubscriptions()}
-                </div>
+              <List className={`${classes.topicList} advanced-connection-settings-topic-list`} component="nav">
+                <div className={classes.list}>{this.renderSubscriptions()}</div>
               </List>
             </Grid>
-            <Grid item={true} xs={9} className={classes.gridPadding}>
+            <Grid item={true} xs={7} className={classes.gridPadding}>
               <TextField
                 className={classes.fullWidth}
                 label="MQTT Client ID"
@@ -84,6 +121,20 @@ class ConnectionSettings extends React.Component<Props, State> {
               />
             </Grid>
             <Grid item={true} xs={3} className={classes.gridPadding}>
+              <div>
+                <Tooltip title="Select certificate to verify authenticity of a self-signed certificate" placement="top">
+                  <Button
+                    variant="contained"
+                    className={classes.button}
+                    onClick={() => this.props.managerActions.selectCertificate(this.props.connection.id)}
+                  >
+                    <Lock /> Certificate
+                  </Button>
+                </Tooltip>
+                {this.renderCertificateInfo()}
+              </div>
+            </Grid>
+            <Grid item={true} xs={2} className={classes.gridPadding}>
               <Button
                 variant="contained"
                 className={classes.button}
@@ -97,30 +148,17 @@ class ConnectionSettings extends React.Component<Props, State> {
       </div>
     )
   }
-
-  private renderSubscriptions() {
-    const connection = this.props.connection
-    return connection.subscriptions.map(subscription => (
-      <Subscription
-        deleteAction={() => this.props.managerActions.deleteSubscription(subscription, connection.id)}
-        subscription={subscription}
-        key={subscription}
-      />
-    ))
-  }
 }
 
-const Subscription = (props: {
-  subscription: string,
-  deleteAction: any,
-}) => {
+const Subscription = (props: { subscription: string; deleteAction: any }) => {
   return (
     <ListItem style={{ padding: '0 0 0 8px' }}>
       <ListItemText>
         <IconButton onClick={props.deleteAction} style={{ padding: '6px' }}>
           <Delete />
         </IconButton>
-        {props.subscription}</ListItemText>
+        {props.subscription}
+      </ListItemText>
     </ListItem>
   )
 }
@@ -131,25 +169,34 @@ const mapDispatchToProps = (dispatch: any) => {
   }
 }
 
-const styles: StyleRulesCallback<string> = (theme: Theme) => {
-  return {
-    fullWidth: {
-      width: '100%',
-    },
-    gridPadding: {
-      padding: '0 12px !important',
-    },
-    topicList: {
-      height: '180px',
-      overflowY: 'scroll' as 'scroll',
-      margin: '8px 16px',
-      backgroundColor: theme.palette.background.default,
-    },
-    button: {
-      marginTop: theme.spacing(3),
-      float: 'right',
-    },
-  }
-}
+const styles = (theme: Theme) => ({
+  fullWidth: {
+    width: '100%',
+  },
+  gridPadding: {
+    padding: '0 12px !important',
+  },
+  topicList: {
+    height: '180px',
+    overflowY: 'scroll' as 'scroll',
+    margin: '8px 16px',
+    backgroundColor: theme.palette.background.default,
+  },
+  button: {
+    marginTop: theme.spacing(3),
+    float: 'right' as 'right',
+  },
+  certificateName: {
+    width: '100%',
+    height: 'calc(1em + 4px)',
+    overflow: 'hidden' as 'hidden',
+    whiteSpace: 'nowrap' as 'nowrap',
+    textOverflow: 'ellipsis' as 'ellipsis',
+    color: theme.palette.text.hint,
+  },
+})
 
-export default connect(undefined, mapDispatchToProps)(withStyles(styles)(ConnectionSettings))
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(withStyles(styles)(ConnectionSettings))

app/src/components/ConnectionSetup/ConnectionSettings.tsx

@@ -10,7 +10,7 @@ import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
 import { connectionActions, connectionManagerActions } from '../../actions'
 import { ConnectionOptions, toMqttConnection } from '../../model/ConnectionOptions'
-import { StyleRulesCallback, Theme, withStyles } from '@material-ui/core/styles'
+import { Theme, withStyles } from '@material-ui/core/styles'
 
 import {
   Button,
@@ -25,21 +25,18 @@ import {
   Switch,
   TextField,
 } from '@material-ui/core'
-import ConnectionHealthIndicator from '../ConnectionHealthIndicator'
+import ConnectionHealthIndicator from '../helper/ConnectionHealthIndicator'
 
 interface Props {
   connection: ConnectionOptions
-  classes: {[s: string]: string}
-  actions: typeof connectionActions,
+  classes: { [s: string]: string }
+  actions: typeof connectionActions
   managerActions: typeof connectionManagerActions
   connected: boolean
   connecting: boolean
 }
 
-const protocols = [
-  'mqtt',
-  'ws',
-]
+const protocols = ['mqtt', 'ws']
 
 interface State {
   showPassword: boolean
@@ -90,15 +87,112 @@ class ConnectionSettings extends React.Component<Props, State> {
     })
   }
 
+  private renderProtocols() {
+    const { classes, connection } = this.props
+
+    const protocolItems = protocols.map((value: string) => (
+      <MenuItem key={value} value={value}>
+        {value}://
+      </MenuItem>
+    ))
+
+    return (
+      <TextField
+        select={true}
+        label="Protocol"
+        className={classes.textField}
+        value={connection.protocol}
+        onChange={this.updateProtocol}
+        margin="normal"
+      >
+        {protocolItems}
+      </TextField>
+    )
+  }
+
+  private updateProtocol = (event: React.ChangeEvent<HTMLInputElement>) => {
+    const value = event.target.value
+    this.updateConnection('protocol', value)
+    if (event.target.value === 'mqtt') {
+      this.updateConnection('basePath', undefined)
+    } else {
+      this.updateConnection('basePath', 'ws')
+    }
+  }
+
+  private renderCertValidationSwitch() {
+    const { classes, connection } = this.props
+
+    const certSwitch = (
+      <Switch checked={connection.certValidation} onChange={this.toggleCertValidation} color="primary" />
+    )
+
+    return (
+      <div className={classes.switch}>
+        <FormControlLabel control={certSwitch} label="Validate certificate" labelPlacement="bottom" />
+      </div>
+    )
+  }
+
+  private toggleCertValidation = () => {
+    this.props.managerActions.updateConnection(this.props.connection.id, {
+      certValidation: !this.props.connection.certValidation,
+    })
+  }
+
+  private renderTlsSwitch() {
+    const { classes, connection } = this.props
+
+    const tlsSwitch = <Switch checked={connection.encryption} onChange={this.toggleTls} color="primary" />
+
+    return (
+      <div className={classes.switch}>
+        <FormControlLabel control={tlsSwitch} label="Encryption (tls)" labelPlacement="bottom" />
+      </div>
+    )
+  }
+
+  private toggleTls = () => {
+    this.props.managerActions.updateConnection(this.props.connection.id, {
+      encryption: !this.props.connection.encryption,
+    })
+  }
+
+  private renderConnectButton() {
+    const { classes, actions } = this.props
+
+    if (this.props.connecting) {
+      return (
+        <Button variant="contained" color="primary" className={classes.button} onClick={actions.disconnect}>
+          <ConnectionHealthIndicator />
+          &nbsp;&nbsp;Abort
+        </Button>
+      )
+    }
+    return (
+      <Button variant="contained" color="primary" className={classes.button} onClick={this.onClickConnect}>
+        <PowerSettingsNew /> Connect
+      </Button>
+    )
+  }
+
+  private onClickConnect = () => {
+    if (!this.props.connection) {
+      return
+    }
+
+    const mqttOptions = toMqttConnection(this.props.connection)
+    if (mqttOptions) {
+      this.props.actions.connect(mqttOptions, this.props.connection.id)
+    }
+  }
+
   public render() {
     const { classes, connection } = this.props
 
     const passwordVisibilityButton = (
       <InputAdornment position="end">
-        <IconButton
-          aria-label="Toggle password visibility"
-          onClick={this.handleClickShowPassword}
-        >
+        <IconButton aria-label="Toggle password visibility" onClick={this.handleClickShowPassword}>
           {this.state.showPassword ? <Visibility /> : <VisibilityOff />}
         </IconButton>
       </InputAdornment>
@@ -170,15 +264,28 @@ class ConnectionSettings extends React.Component<Props, State> {
           <br />
           <div>
             <div style={{ float: 'left' }}>
-              <Button variant="contained" className={classes.button} onClick={() => this.props.managerActions.deleteConnection(this.props.connection.id)}>
+              <Button
+                variant="contained"
+                className={classes.button}
+                onClick={() => this.props.managerActions.deleteConnection(this.props.connection.id)}
+              >
                 Delete <Delete />
               </Button>
-              <Button variant="contained" className={classes.button} onClick={this.props.managerActions.toggleAdvancedSettings}>
+              <Button
+                variant="contained"
+                className={classes.button}
+                onClick={this.props.managerActions.toggleAdvancedSettings}
+              >
                 <Settings /> Advanced
               </Button>
             </div>
-            <div style={{ float : 'right' }}>
-              <Button variant="contained" color="secondary" className={classes.button} onClick={this.props.managerActions.saveConnectionSettings}>
+            <div style={{ float: 'right' }}>
+              <Button
+                variant="contained"
+                color="secondary"
+                className={classes.button}
+                onClick={this.props.managerActions.saveConnectionSettings}
+              >
                 <Save /> Save
               </Button>
               {this.renderConnectButton()}
@@ -188,123 +295,6 @@ class ConnectionSettings extends React.Component<Props, State> {
       </div>
     )
   }
-
-  private renderProtocols() {
-    const { classes, connection } = this.props
-
-    const protocolItems = protocols.map((value: string) => (
-      <MenuItem key={value} value={value}>
-        {value}://
-      </MenuItem>
-    ))
-
-    return (
-      <TextField
-        select={true}
-        label="Protocol"
-        className={classes.textField}
-        value={connection.protocol}
-        onChange={this.updateProtocol}
-        margin="normal"
-      >
-        {protocolItems}
-      </TextField>
-    )
-  }
-
-  private updateProtocol = (event: React.ChangeEvent<HTMLInputElement>) => {
-    const value = event.target.value
-    this.updateConnection('protocol', value)
-    if (event.target.value === 'mqtt') {
-      this.updateConnection('basePath', undefined)
-    } else {
-      this.updateConnection('basePath', 'ws')
-    }
-  }
-
-  private renderCertValidationSwitch() {
-    const { classes, connection } = this.props
-
-    const certSwitch = (
-      <Switch
-        checked={connection.certValidation}
-        onChange={this.toggleCertValidation}
-        color="primary"
-      />
-    )
-
-    return (
-      <div className={classes.switch}>
-        <FormControlLabel
-          control={certSwitch}
-          label="Validate certificate"
-          labelPlacement="bottom"
-        />
-      </div>
-    )
-  }
-
-  private toggleCertValidation = () => {
-    this.props.managerActions.updateConnection(this.props.connection.id, {
-      certValidation: !this.props.connection.certValidation,
-    })
-  }
-
-  private renderTlsSwitch() {
-    const { classes, connection } = this.props
-
-    const tlsSwitch = (
-      <Switch
-        checked={connection.encryption}
-        onChange={this.toggleTls}
-        color="primary"
-      />
-    )
-
-    return (
-      <div className={classes.switch}>
-        <FormControlLabel
-          control={tlsSwitch}
-          label="Encryption (tls)"
-          labelPlacement="bottom"
-        />
-      </div>
-    )
-  }
-
-  private toggleTls = () => {
-    this.props.managerActions.updateConnection(this.props.connection.id, {
-      encryption: !this.props.connection.encryption,
-    })
-  }
-
-  private renderConnectButton() {
-    const { classes, actions } = this.props
-
-    if (this.props.connecting) {
-      return (
-        <Button variant="contained" color="primary" className={classes.button} onClick={actions.disconnect}>
-          <ConnectionHealthIndicator />&nbsp;&nbsp;Abort
-        </Button>
-      )
-    }
-    return (
-       <Button variant="contained" color="primary" className={classes.button} onClick={this.onClickConnect}>
-        <PowerSettingsNew /> Connect
-      </Button>
-    )
-  }
-
-  private onClickConnect = () => {
-    if (!this.props.connection) {
-      return
-    }
-
-    const mqttOptions = toMqttConnection(this.props.connection)
-    if (mqttOptions) {
-      this.props.actions.connect(mqttOptions, this.props.connection.id)
-    }
-  }
 }
 
 const mapStateToProps = (state: AppState) => {
@@ -321,21 +311,22 @@ const mapDispatchToProps = (dispatch: any) => {
   }
 }
 
-const styles: StyleRulesCallback<string> = (theme: Theme) => {
-  return {
-    textField: {
-      width: '100%',
-    },
-    switch: {
-      marginTop: 0,
-    },
-    button: {
-      margin: theme.spacing(1),
-    },
-    inputFormControl: {
-      marginTop: '16px',
-    },
-  }
-}
+const styles = (theme: Theme) => ({
+  textField: {
+    width: '100%',
+  },
+  switch: {
+    marginTop: 0,
+  },
+  button: {
+    margin: theme.spacing(1),
+  },
+  inputFormControl: {
+    marginTop: '16px',
+  },
+})
 
-export default connect(mapStateToProps, mapDispatchToProps)(withStyles(styles)(ConnectionSettings))
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withStyles(styles)(ConnectionSettings))

app/src/components/ConnectionSetup/ConnectionSetup.tsx

@@ -7,13 +7,7 @@ import { connect } from 'react-redux'
 import { connectionManagerActions } from '../../actions'
 import { ConnectionOptions, toMqttConnection } from '../../model/ConnectionOptions'
 import { Theme, withStyles } from '@material-ui/core/styles'
-import {
-  Modal,
-  Paper,
-  Toolbar,
-  Typography,
-  Collapse,
-} from '@material-ui/core'
+import { Modal, Paper, Toolbar, Typography, Collapse } from '@material-ui/core'
 import AdvancedConnectionSettings from './AdvancedConnectionSettings'
 
 interface Props {
@@ -29,6 +23,24 @@ class ConnectionSetup extends React.Component<Props, {}> {
     super(props)
   }
 
+  private renderSettings() {
+    const { connection, showAdvancedSettings } = this.props
+    if (!connection) {
+      return null
+    }
+
+    return (
+      <div>
+        <Collapse in={!showAdvancedSettings}>
+          <ConnectionSettings connection={connection} />
+        </Collapse>
+        <Collapse in={showAdvancedSettings}>
+          <AdvancedConnectionSettings connection={connection} />
+        </Collapse>
+      </div>
+    )
+  }
+
   public componentDidMount() {
     this.props.actions.loadConnectionSettings()
   }
@@ -40,13 +52,15 @@ class ConnectionSetup extends React.Component<Props, {}> {
       <div>
         <Modal open={visible} disableAutoFocus={true}>
           <Paper className={classes.root}>
-            <div className={classes.left}><ProfileList /></div>
+            <div className={classes.left}>
+              <ProfileList />
+            </div>
             <div className={classes.right} key={connection && connection.id}>
               <Toolbar>
-                <Typography className={classes.title} variant="h6" color="inherit">MQTT Connection</Typography>
-                <Typography className={classes.connectionUri}>
-                  {mqttConnection && mqttConnection.url}
+                <Typography className={classes.title} variant="h6" color="inherit">
+                  MQTT Connection
                 </Typography>
+                <Typography className={classes.connectionUri}>{mqttConnection && mqttConnection.url}</Typography>
               </Toolbar>
               {this.renderSettings()}
             </div>
@@ -55,20 +69,6 @@ class ConnectionSetup extends React.Component<Props, {}> {
       </div>
     )
   }
-
-  private renderSettings() {
-    const { connection, showAdvancedSettings } = this.props
-    if (!connection) {
-      return null
-    }
-
-    return (
-      <div>
-        <Collapse in={!showAdvancedSettings}><ConnectionSettings connection={connection} /></Collapse>
-        <Collapse in={showAdvancedSettings}><AdvancedConnectionSettings connection={connection} /></Collapse>
-      </div>
-    )
-  }
 }
 
 const connectionHeight = '440px'
@@ -115,7 +115,9 @@ const mapStateToProps = (state: AppState) => {
   return {
     visible: !state.connection.connected,
     showAdvancedSettings: state.connectionManager.showAdvancedSettings,
-    connection: state.connectionManager.selected ? state.connectionManager.connections[state.connectionManager.selected] : undefined,
+    connection: state.connectionManager.selected
+      ? state.connectionManager.connections[state.connectionManager.selected]
+      : undefined,
   }
 }
 
@@ -125,4 +127,7 @@ const mapDispatchToProps = (dispatch: any) => {
   }
 }
 
-export default connect(mapStateToProps, mapDispatchToProps)(withStyles(styles)(ConnectionSetup))
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withStyles(styles)(ConnectionSetup))

app/src/components/ConnectionSetup/ProfileList.tsx

@@ -6,17 +6,12 @@ import { connect } from 'react-redux'
 import { connectionManagerActions } from '../../actions'
 import { ConnectionOptions, toMqttConnection } from '../../model/ConnectionOptions'
 import { Theme, withStyles } from '@material-ui/core/styles'
-import {
-  List,
-  ListItem,
-  ListSubheader,
-  Typography,
-} from '@material-ui/core'
+import { List, ListItem, ListSubheader, Typography } from '@material-ui/core'
 
 interface Props {
   classes: any
   selected?: string
-  connections: {[s: string]: ConnectionOptions}
+  connections: { [s: string]: ConnectionOptions }
   actions: any
 }
 
@@ -26,7 +21,11 @@ class ProfileList extends React.Component<Props, {}> {
   }
 
   private addConnectionButton() {
-    return <span id="addProfileButton" style={{ marginRight: '12px' }}><AddButton action={this.props.actions.createConnection} /></span>
+    return (
+      <span id="addProfileButton" style={{ marginRight: '12px' }}>
+        <AddButton action={this.props.actions.createConnection} />
+      </span>
+    )
   }
 
   public render() {
@@ -37,7 +36,13 @@ class ProfileList extends React.Component<Props, {}> {
         subheader={<ListSubheader component="div">{this.addConnectionButton()}Connections</ListSubheader>}
       >
         <div className={this.props.classes.list}>
-          {Object.values(this.props.connections).map(connection => <ConnectionItem connection={connection} key={connection.id} selected={this.props.selected === connection.id} />)}
+          {Object.values(this.props.connections).map(connection => (
+            <ConnectionItem
+              connection={connection}
+              key={connection.id}
+              selected={this.props.selected === connection.id}
+            />
+          ))}
         </div>
       </List>
     )
@@ -59,9 +64,9 @@ const mapDispatchToProps = (dispatch: any) => {
 }
 
 interface ConnectionItemProps {
-  connection: ConnectionOptions,
-  actions: any,
-  selected: boolean,
+  connection: ConnectionOptions
+  actions: any
+  selected: boolean
   classes: any
 }
 
@@ -91,17 +96,16 @@ const connectionItemRenderer = withStyles(connectionItemStyle)((props: Connectio
       style={{ display: 'block' }}
       onClick={() => props.actions.selectConnection(props.connection.id)}
     >
-      <Typography className={props.classes.name}>
-        {props.connection.name || 'mqtt broker'}
-      </Typography>
-      <Typography className={props.classes.details}>
-        {connection && connection.url}
-      </Typography>
+      <Typography className={props.classes.name}>{props.connection.name || 'mqtt broker'}</Typography>
+      <Typography className={props.classes.details}>{connection && connection.url}</Typography>
     </ListItem>
   )
 })
 
-const ConnectionItem = connect(null, mapDispatchToProps)(connectionItemRenderer)
+const ConnectionItem = connect(
+  null,
+  mapDispatchToProps
+)(connectionItemRenderer)
 
 const mapStateToProps = (state: AppState) => {
   return {
@@ -110,4 +114,7 @@ const mapStateToProps = (state: AppState) => {
   }
 }
 
-export default connect(mapStateToProps, mapDispatchToProps)(withStyles(styles)(ProfileList))
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withStyles(styles)(ProfileList))

app/src/components/Copy.tsx

@@ -1,79 +0,0 @@
-import * as React from 'react'
-import Check from '@material-ui/icons/Check'
-import CustomIconButton from './CustomIconButton'
-import FileCopy from '@material-ui/icons/FileCopy'
-import green from '@material-ui/core/colors/green'
-import { Snackbar, SnackbarContent, Tooltip } from '@material-ui/core'
-import { Theme, withStyles } from '@material-ui/core/styles'
-
-const copy = require('copy-text-to-clipboard')
-
-interface Props {
-  value: string
-  classes: any
-}
-
-interface State {
-  didCopy: boolean
-  snackBarOpen: boolean
-}
-
-const styles = (theme: Theme) => ({
-  snackbar: {
-    backgroundColor: green[600],
-    color: theme.typography.button.color,
-  },
-})
-
-class Copy extends React.Component<Props, State> {
-  constructor(props: Props) {
-    super(props)
-    this.state = { didCopy: false, snackBarOpen: false }
-  }
-
-  public render() {
-    const icon = !this.state.didCopy
-      ? <FileCopy fontSize="inherit" />
-      : <Check fontSize="inherit" style={{ cursor: 'default' }} />
-
-    return (
-      <span>
-        <Tooltip placement="top" title="Copy to clipboard">
-          <span style={{ fontSize: '16px' }}>
-          <CustomIconButton onClick={this.handleClick} >
-            {icon}
-          </CustomIconButton>
-          </span>
-        </Tooltip>
-        <span>
-          <Snackbar
-            anchorOrigin={{
-              vertical: 'bottom',
-              horizontal: 'left',
-            }}
-            open={this.state.snackBarOpen}
-            autoHideDuration={2000}
-            onClose={() => { this.setState({ snackBarOpen: false }) }}
-          >
-            <SnackbarContent
-              className={this.props.classes.snackbar}
-              message="Copied to clipboard"
-            />
-          </Snackbar>
-        </span>
-      </span>
-    )
-  }
-
-  private handleClick = (event: React.MouseEvent) => {
-    event.stopPropagation()
-
-    copy(this.props.value)
-    this.setState({ didCopy: true, snackBarOpen: true })
-    setTimeout(() => {
-      this.setState({ didCopy: false })
-    }, 1500)
-  }
-}
-
-export default withStyles(styles)(Copy)

app/src/components/Demo/Key.tsx

@@ -13,7 +13,6 @@ class Key extends React.Component<Props, {}> {
   }
 
   public render() {
-
     return (
       <div className={this.props.classes.keyStyle}>
         <div className={this.props.classes.keyTextStyle}>{this.props.keyboardKey}</div>

app/src/components/Demo/Mouse.tsx

@@ -1,15 +1,16 @@
 import * as React from 'react'
 import { Theme, withStyles } from '@material-ui/core'
+const cursor = require('./cursor.png')
 
 interface State {
   enabled: boolean
-  target: {x: number, y: number}
-  position: {x: number, y: number}
-  stepSizeX: number,
-  stepSizeY: number,
+  target: { x: number; y: number }
+  position: { x: number; y: number }
+  stepSizeX: number
+  stepSizeY: number
 }
 
-class Demo extends React.Component<{}, State> {
+class Demo extends React.Component<{ classes: any }, State> {
   private timer: any
   private frameInterval = 20
 
@@ -18,18 +19,6 @@ class Demo extends React.Component<{}, State> {
     this.state = { enabled: false, target: { x: 0, y: 0 }, position: { x: 0, y: 0 }, stepSizeX: 1, stepSizeY: 1 }
   }
 
-  public componentDidMount() {
-    (window as any).demo.enableMouse = () => {
-      this.setState({ enabled: true })
-    }
-    (window as any).demo.moveMouse = (x: number, y: number, animationTime: number) => {
-      const stepSizeX = Math.abs(this.state.position.x - x) / (animationTime / this.frameInterval)
-      const stepSizeY = Math.abs(this.state.position.y - y) / (animationTime / this.frameInterval)
-      this.setState({ stepSizeX, stepSizeY, enabled: true, target: { x, y } })
-      this.moveCloser()
-    }
-  }
-
   private moveCloser(steps: number = 0) {
     const steSizeX = Math.min(this.state.stepSizeX, Math.abs(this.state.position.x - this.state.target.x))
     const steSizeY = Math.min(this.state.stepSizeY, Math.abs(this.state.position.y - this.state.target.y))
@@ -43,8 +32,8 @@ class Demo extends React.Component<{}, State> {
 
     this.setState({
       position: {
-        x: this.state.position.x + (dirX * steSizeX),
-        y: this.state.position.y + (dirY * steSizeY),
+        x: this.state.position.x + dirX * steSizeX,
+        y: this.state.position.y + dirY * steSizeY,
       },
     })
 
@@ -53,26 +42,41 @@ class Demo extends React.Component<{}, State> {
     }, this.frameInterval)
   }
 
+  public componentDidMount() {
+    ;(window as any).demo.enableMouse = () => {
+      this.setState({ enabled: true })
+    }
+    ;(window as any).demo.moveMouse = (x: number, y: number, animationTime: number) => {
+      const stepSizeX = Math.abs(this.state.position.x - x) / (animationTime / this.frameInterval)
+      const stepSizeY = Math.abs(this.state.position.y - y) / (animationTime / this.frameInterval)
+      this.setState({ stepSizeX, stepSizeY, enabled: true, target: { x, y } })
+      this.moveCloser()
+    }
+  }
+
   public render() {
     if (!this.state.enabled) {
       return null
     }
-    const style = {
-      width: '32px',
-      height: '32px',
-      position: 'fixed' as 'fixed',
-      zIndex: 1000000,
-      filter: 'invert(100%)',
+
+    const cursorStyle = {
       left: this.state.position.x + 2,
       top: this.state.position.y + 2,
     }
 
-    return (
-      <img src="../cursor.png" style={style} />
-    )
+    return <img src={cursor} style={cursorStyle} className={this.props.classes.cursor} />
   }
 }
 
-const style = (theme: Theme) => {}
+const style = (theme: Theme) => ({
+  cursor: {
+    width: '32px',
+    height: '32px',
+    position: 'fixed' as 'fixed',
+    zIndex: 1000000,
+    filter: theme.palette.type === 'light' ? undefined : 'invert(100%)',
+    pointerEvents: 'none' as 'none',
+  },
+})
 
 export default withStyles(style)(Demo)

app/src/components/Demo/ShowText.tsx

@@ -1,16 +1,14 @@
 import * as React from 'react'
 import { Theme, withStyles } from '@material-ui/core'
-import Key from './Key';
+import Key from './Key'
 
 interface State {
   message?: string
-  keys: string[]
+  keys: Array<string>
   location: string
 }
 
-
-
-class Demo extends React.Component<{classes: any}, State> {
+class Demo extends React.Component<{ classes: any }, State> {
   private timer: any
   constructor(props: any) {
     super(props)
@@ -22,20 +20,24 @@ class Demo extends React.Component<{classes: any}, State> {
   }
 
   public componentDidMount() {
-    (window as any).demo.showMessage = (message: string, location: string, duration: number, keys: string[] = []) => {
+    ;(window as any).demo.showMessage = (
+      message: string,
+      location: string,
+      duration: number,
+      keys: Array<string> = []
+    ) => {
       this.clearTimer()
       this.setState({ message, location, keys })
       this.timer = setTimeout(() => this.setState({ message: undefined }), duration)
     }
-
-    (window as any).demo.hideMessage = () => {
+    ;(window as any).demo.hideMessage = () => {
       this.clearTimer()
       this.setState({ message: undefined })
     }
   }
 
   public render() {
-    const positions: {[s: string]: number} = {
+    const positions: { [s: string]: number } = {
       top: 0,
       bottom: -65,
       middle: -32,
@@ -54,16 +56,16 @@ class Demo extends React.Component<{classes: any}, State> {
       color: 'white',
       backgroundColor: 'rgba(0, 0, 0, 0.8)',
       borderRadius: '16px',
-
     }
 
     if (!this.state.message) {
       return null
     }
 
-    let keys: any[] = []
+    let keys: Array<any> = []
     if (this.state.keys.length > 0) {
-      keys = this.state.keys.map(key => [<Key key={key} keyboardKey={key} />])
+      keys = this.state.keys
+        .map(key => [<Key key={key} keyboardKey={key} />])
         .reduce((prev, current) => {
           return [prev, '+' as any, current]
         })

app/src/components/Demo/index.tsx

@@ -0,0 +1,26 @@
+import * as React from 'react'
+import ShowText from './ShowText'
+import Mouse from './Mouse'
+let heapdump: any
+
+function writeHeapdump(path?: string) {
+  if (!heapdump) {
+    heapdump = require('heapdump')
+  }
+
+  heapdump.writeSnapshot(path || `${Date.now()}.heapsnapshot`)
+  return path
+}
+
+;(window as any).demo = {
+  writeHeapdump,
+}
+
+export default function render(props: any) {
+  return (
+    <span>
+      <ShowText />
+      <Mouse />
+    </span>
+  )
+}

app/src/components/ErrorBoundary.tsx

@@ -1,16 +1,10 @@
 import * as React from 'react'
-import PersistantStorage from './PersistantStorage'
+import PersistentStorage from '../utils/PersistentStorage'
 import SentimentDissatisfied from '@material-ui/icons/SentimentDissatisfied'
 import Warning from '@material-ui/icons/Warning'
 import { electronRendererTelementry } from 'electron-telemetry'
 import { Theme, withStyles } from '@material-ui/core/styles'
-import {
-  Button,
-  Modal,
-  Paper,
-  Toolbar,
-  Typography,
-} from '@material-ui/core'
+import { Button, Modal, Paper, Toolbar, Typography } from '@material-ui/core'
 
 interface State {
   error?: Error
@@ -21,29 +15,28 @@ interface Props {
 }
 
 class ErrorBoundary extends React.Component<Props, State> {
+  public static getDerivedStateFromError(error: Error) {
+    return { error }
+  }
   constructor(props: Props) {
     super(props)
     this.state = {}
   }
 
-  public componentDidCatch(error: Error, errorInfo: any) {
-    electronRendererTelementry.trackError(error)
-    console.log('did catch', error)
-  }
-
-  public static getDerivedStateFromError(error: Error) {
-    return { error }
-  }
-
   private restart = () => {
     window.location = window.location
   }
 
   private clearStorage = () => {
-    PersistantStorage.clear()
+    PersistentStorage.clear()
     window.location = window.location
   }
 
+  public componentDidCatch(error: Error, errorInfo: any) {
+    electronRendererTelementry.trackError(error)
+    console.log('did catch', error)
+  }
+
   public render() {
     if (!this.state.error) {
       return this.props.children
@@ -54,23 +47,36 @@ class ErrorBoundary extends React.Component<Props, State> {
       <Modal open={true} disableAutoFocus={true}>
         <Paper className={classes.root}>
           <Toolbar style={{ padding: '0' }}>
-            <Typography className={classes.title} variant="h6" color="inherit"><Warning /> Oooooops!</Typography>
+            <Typography className={classes.title} variant="h6" color="inherit">
+              <Warning /> Oooooops!
+            </Typography>
           </Toolbar>
-          <Typography className={classes.centered}>I hoped that you would never see this window, but MQTT-Explorer had an unexpected error.</Typography>
-          <Typography className={classes.centered}><SentimentDissatisfied /></Typography>
+          <Typography className={classes.centered}>
+            I hoped that you would never see this window, but MQTT-Explorer had an unexpected error.
+          </Typography>
+          <Typography className={classes.centered}>
+            <SentimentDissatisfied />
+          </Typography>
           <pre className={classes.textColor} style={{ maxHeight: '35vh', overflow: 'scroll' }}>
-            <code className={classes.textColor}>
-              {this.state.error.stack}
-            </code>
+            <code className={classes.textColor}>{this.state.error.stack}</code>
           </pre>
           <Typography>
             Please report this issue with a short description of what happened to
-            <span> <a className={classes.textColor} href="https://github.com/thomasnordquist/MQTT-Explorer/issues">https://github.com/thomasnordquist/MQTT-Explorer/issues</a></span>
+            <span>
+              {' '}
+              <a className={classes.textColor} href="https://github.com/thomasnordquist/MQTT-Explorer/issues">
+                https://github.com/thomasnordquist/MQTT-Explorer/issues
+              </a>
+            </span>
           </Typography>
           <div>
             <div className={classes.buttonPositioning}>
-              <Button className={classes.button} variant="contained" color="secondary" onClick={this.clearStorage}>Start Fresh</Button>
-              <Button className={classes.button} variant="contained" color="primary" onClick={this.restart}>Restart</Button>
+              <Button className={classes.button} variant="contained" color="secondary" onClick={this.clearStorage}>
+                Start Fresh
+              </Button>
+              <Button className={classes.button} variant="contained" color="primary" onClick={this.restart}>
+                Restart
+              </Button>
             </div>
           </div>
         </Paper>
@@ -98,6 +104,7 @@ const styles = (theme: Theme) => ({
   },
   textColor: {
     color: theme.palette.text.primary,
+    userSelect: 'all' as 'all',
   },
   centered: {
     textAlign: 'center' as 'center',

app/src/components/Layout/ContentView.tsx

@@ -0,0 +1,116 @@
+import * as React from 'react'
+import ChartPanel from '../ChartPanel'
+import ReactSplitPane from 'react-split-pane'
+import Tree from '../Tree/Tree'
+import { AppState } from '../../reducers'
+import { ChartParameters } from '../../reducers/Charts'
+import { connect } from 'react-redux'
+import { List } from 'immutable'
+import { Sidebar } from '../Sidebar'
+import ReactResizeDetector from 'react-resize-detector'
+
+interface Props {
+  heightProperty: any
+  paneDefaults: any
+  connectionId?: string
+  chartPanelItems: List<ChartParameters>
+}
+
+function ContentView(props: Props) {
+  const [height, setHeight] = React.useState<string | number>('100%')
+  const [sidebarWidth, setSidebarWidth] = React.useState<string | number>('40%')
+  const [detectedHeight, setDetectedHeight] = React.useState(0)
+  const [detectedSidebarWidth, setDetectedSidebarWidth] = React.useState(0)
+  const detectSize = React.useCallback((width, newHeight) => {
+    setDetectedHeight(newHeight)
+  }, [])
+
+  const detectSidebarSize = React.useCallback(width => {
+    setDetectedSidebarWidth(width)
+  }, [])
+
+  const closeDrawerCompletelyIfItSitsOnTheEdge = React.useCallback(() => {
+    if (detectedHeight < 30) {
+      setHeight('100%')
+    }
+  }, [detectedHeight])
+
+  const closeSidebarCompletelyIfItSitsOnTheEdge = React.useCallback(() => {
+    if (detectedSidebarWidth < 30) {
+      setSidebarWidth('0%')
+    }
+  }, [detectedSidebarWidth])
+
+  // Open chart panel on start and when a new chart is added but the panel is closed
+  React.useEffect(() => {
+    const almostClosed = !isNaN(height as any) && detectedHeight < 30
+    if ((!height || height === '100%' || almostClosed) && props.chartPanelItems.count() > 0) {
+      setHeight('calc(100% - 250px)')
+    }
+
+    if (props.chartPanelItems.count() === 0) {
+      setHeight('100%')
+    }
+  }, [props.chartPanelItems])
+
+  return (
+    <div className={props.paneDefaults}>
+      <span>
+        <ReactSplitPane
+          step={20}
+          primary="second"
+          className={props.heightProperty}
+          split="vertical"
+          minSize={0}
+          size={sidebarWidth}
+          onChange={setSidebarWidth}
+          onDragFinished={closeSidebarCompletelyIfItSitsOnTheEdge}
+          allowResize={true}
+          style={{ height: '100%' }}
+          pane1Style={{ overflowX: 'hidden' }}
+          resizerStyle={{ height: '100%' }}
+        >
+          <span>
+            <ReactSplitPane
+              step={10}
+              split="horizontal"
+              minSize={0}
+              size={height}
+              allowResize={true}
+              style={{ height: 'calc(100vh - 64px)' }}
+              pane1Style={{ maxHeight: '100%' }}
+              pane2Style={{ borderTop: '1px solid #999', display: 'flex' }}
+              onChange={setHeight}
+              onDragFinished={closeDrawerCompletelyIfItSitsOnTheEdge}
+            >
+              <Tree />
+              {/** Passing height constraints via flex options down */}
+              <div style={{ flex: 1, display: 'flex', height: '100%', width: '100%' }}>
+                {/** Resize detector must not be in the scroll zone, it needs to detect actual available size */}
+                <ReactResizeDetector handleHeight={true} onResize={detectSize} />
+                <ChartPanel />
+              </div>
+            </ReactSplitPane>
+          </span>
+          <div style={{ height: '100%' }}>
+            <ReactResizeDetector handleWidth={true} onResize={detectSidebarSize} />
+            <div
+              className={props.paneDefaults}
+              style={{ minWidth: '250px', height: '100%', overflowY: 'auto', overflowX: 'hidden' }}
+            >
+              <Sidebar connectionId={props.connectionId} />
+            </div>
+          </div>
+        </ReactSplitPane>
+      </span>
+    </div>
+  )
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    chartPanelItems: state.charts.get('charts'),
+  }
+}
+
+export default connect(mapStateToProps)(ContentView)

app/src/components/Layout/Notification.tsx

@@ -6,6 +6,7 @@ import { green, red } from '@material-ui/core/colors'
 
 interface Props {
   message?: string
+  type: 'error' | 'notification'
   onClose: () => void
   classes: any
 }
@@ -16,12 +17,12 @@ class Notification extends React.Component<Props, {}> {
   }
 
   public static styles = (theme: Theme) => ({
-    success: {
+    notification: {
       backgroundColor: green[600],
       color: theme.typography.button.color,
     },
     error: {
-      backgroundColor: red[600],
+      backgroundColor: theme.palette.error.main,
       color: theme.typography.button.color,
     },
   })
@@ -36,11 +37,11 @@ class Notification extends React.Component<Props, {}> {
       <Snackbar
         anchorOrigin={snackbarAnchor}
         open={Boolean(this.props.message)}
-        autoHideDuration={10000}
+        autoHideDuration={this.props.type === 'error' ? 10000 : 2000}
         onClose={this.props.onClose}
       >
         <SnackbarContent
-          className={this.props.classes.error}
+          className={this.props.type === 'error' ? this.props.classes.error : this.props.classes.notification}
           message={this.props.message}
         />
       </Snackbar>

app/src/components/Layout/PauseButton.tsx

@@ -0,0 +1,108 @@
+import * as React from 'react'
+import * as q from '../../../../backend/src/Model'
+import CustomIconButton from '../helper/CustomIconButton'
+import Pause from '@material-ui/icons/PauseCircleFilled'
+import Resume from '@material-ui/icons/PlayArrow'
+import { AppState } from '../../reducers'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { treeActions } from '../../actions'
+import { withStyles, Theme } from '@material-ui/core/styles'
+
+const styles = (theme: Theme) => ({
+  icon: {
+    color: theme.palette.primary.contrastText,
+    verticalAlign: 'middle' as 'middle',
+  },
+  bufferStats: {
+    minWidth: '8em',
+  },
+})
+
+interface Props {
+  classes: any
+  actions: {
+    tree: typeof treeActions
+  }
+  paused: boolean
+  tree?: q.Tree<any>
+}
+
+class PauseButton extends React.Component<Props, { changes: number }> {
+  private timer?: any
+  constructor(props: Props) {
+    super(props)
+    this.state = { changes: 0 }
+  }
+
+  private renderBufferStats() {
+    if (!this.props.tree) {
+      return
+    }
+
+    return (
+      <span className={this.props.classes.bufferStats}>
+        {this.state.changes} changes
+        <br />
+        buffer at {Math.round(this.props.tree.unmergedChanges().fillState() * 10000) / 100}%
+      </span>
+    )
+  }
+
+  public componentDidMount() {
+    this.timer = setInterval(() => {
+      if (!this.props.paused || !this.props.tree) {
+        return
+      }
+
+      const changes = this.props.tree.unmergedChanges()
+      if (this.state.changes !== changes.length) {
+        this.setState({ changes: changes.length })
+      }
+    }, 300)
+  }
+
+  public componentWillUnmount() {
+    this.timer && clearInterval(this.timer)
+  }
+
+  public render() {
+    const message = this.props.paused
+      ? 'Resumes updating the tree, after applying all recorded changes'
+      : 'Stops all updates, records changes until the buffer is full.'
+    return (
+      <div style={{ display: 'inline-flex' }}>
+        <span>
+          <CustomIconButton onClick={this.props.actions.tree.togglePause} tooltip={message}>
+            {this.props.paused ? (
+              <Resume className={this.props.classes.icon} />
+            ) : (
+              <Pause className={this.props.classes.icon} />
+            )}
+          </CustomIconButton>
+        </span>
+        {this.props.paused ? this.renderBufferStats() : null}
+      </div>
+    )
+  }
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    paused: state.tree.get('paused'),
+    tree: state.tree.get('tree'),
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      tree: bindActionCreators(treeActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withStyles(styles)(PauseButton))

app/src/components/Layout/TitleBar.tsx

@@ -0,0 +1,180 @@
+import * as React from 'react'
+import ClearAdornment from '../helper/ClearAdornment'
+import CloudOff from '@material-ui/icons/CloudOff'
+import ConnectionHealthIndicator from '../helper/ConnectionHealthIndicator'
+import Menu from '@material-ui/icons/Menu'
+import PauseButton from './PauseButton'
+import Search from '@material-ui/icons/Search'
+import { AppState } from '../../reducers'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { connectionActions, globalActions, settingsActions } from '../../actions'
+import { fade } from '@material-ui/core/styles/colorManipulator'
+import { Theme, withStyles } from '@material-ui/core/styles'
+import { AppBar, Button, IconButton, InputBase, Toolbar, Typography } from '@material-ui/core'
+
+const styles = (theme: Theme) => ({
+  title: {
+    display: 'none' as 'none',
+    [theme.breakpoints.up(750)]: {
+      display: 'block' as 'block',
+    },
+    whiteSpace: 'nowrap' as 'nowrap',
+  },
+  search: {
+    position: 'relative' as 'relative',
+    borderRadius: theme.shape.borderRadius,
+    backgroundColor: fade(theme.palette.common.white, 0.15),
+    '&:hover': {
+      backgroundColor: fade(theme.palette.common.white, 0.25),
+    },
+    marginRight: theme.spacing(2),
+    marginLeft: 0,
+    flexGrow: 1,
+    maxWidth: '60%',
+
+    [theme.breakpoints.up('md')]: {
+      maxWidth: '30%',
+
+      marginLeft: theme.spacing(4),
+      width: 'auto' as 'auto',
+    },
+    [theme.breakpoints.up(750)]: {
+      marginLeft: theme.spacing(4),
+      width: 'auto' as 'auto',
+    },
+  },
+  disconnectIcon: {
+    [theme.breakpoints.down('xs')]: {
+      display: 'none' as 'none',
+    },
+    marginRight: '8px',
+    paddingLeft: '8px',
+  },
+  searchIcon: {
+    width: theme.spacing(6),
+    height: '100%',
+    position: 'absolute' as 'absolute',
+    pointerEvents: 'none' as 'none',
+    display: 'flex' as 'flex',
+    alignItems: 'center' as 'center',
+    justifyContent: 'center' as 'center',
+  },
+  inputRoot: {
+    color: 'inherit' as 'inherit',
+    width: '100%',
+  },
+  inputInput: {
+    paddingTop: theme.spacing(1),
+    paddingRight: theme.spacing(1),
+    paddingBottom: theme.spacing(1),
+    paddingLeft: theme.spacing(6),
+    transition: theme.transitions.create('width'),
+    width: '100%',
+  },
+  menuButton: {
+    marginLeft: -12,
+    marginRight: 20,
+  },
+  disconnect: {
+    margin: 'auto 8px auto auto',
+    color: theme.palette.primary.contrastText,
+  },
+})
+
+interface Props {
+  classes: any
+  actions: {
+    settings: typeof settingsActions
+    connection: typeof connectionActions
+    global: typeof globalActions
+  }
+  topicFilter?: string
+}
+
+class TitleBar extends React.Component<Props, {}> {
+  constructor(props: any) {
+    super(props)
+    this.state = {}
+  }
+
+  private renderSearch() {
+    const { classes, topicFilter } = this.props
+
+    return (
+      <div className={classes.search}>
+        <div className={classes.searchIcon}>
+          <Search />
+        </div>
+        <InputBase
+          value={topicFilter}
+          onChange={this.onFilterChange}
+          placeholder="Search…"
+          endAdornment={
+            <div style={{ width: '24px', paddingRight: '8px' }}>
+              <ClearAdornment variant="primary" action={this.clearFilter} value={topicFilter} />
+            </div>
+          }
+          classes={{ root: classes.inputRoot, input: classes.inputInput }}
+        />
+      </div>
+    )
+  }
+
+  private clearFilter = () => {
+    this.props.actions.settings.filterTopics('')
+  }
+
+  private onFilterChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    this.props.actions.settings.filterTopics(event.target.value)
+  }
+
+  public render() {
+    const { actions, classes } = this.props
+
+    return (
+      <AppBar position="static">
+        <Toolbar>
+          <IconButton
+            className={classes.menuButton}
+            color="inherit"
+            aria-label="Menu"
+            onClick={actions.global.toggleSettingsVisibility}
+          >
+            <Menu />
+          </IconButton>
+          <Typography className={classes.title} variant="h6" color="inherit">
+            MQTT Explorer
+          </Typography>
+          {this.renderSearch()}
+          <PauseButton />
+          <Button className={classes.disconnect} onClick={actions.connection.disconnect}>
+            Disconnect <CloudOff className={classes.disconnectIcon} />
+          </Button>
+          <ConnectionHealthIndicator withBackground={true} />
+        </Toolbar>
+      </AppBar>
+    )
+  }
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    topicFilter: state.settings.get('topicFilter'),
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      settings: bindActionCreators(settingsActions, dispatch),
+      global: bindActionCreators(globalActions, dispatch),
+      connection: bindActionCreators(connectionActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withStyles(styles)(TitleBar))

app/src/components/Settings.tsx

@@ -1,245 +0,0 @@
-import * as React from 'react'
-import BrokerStatistics from './BrokerStatistics'
-import ChevronRight from '@material-ui/icons/ChevronRight'
-import { AppState } from '../reducers'
-import { bindActionCreators } from 'redux'
-import { connect } from 'react-redux'
-import { settingsActions } from '../actions'
-import { shell } from 'electron'
-import { StyleRulesCallback, withStyles } from '@material-ui/core/styles'
-import { TopicOrder } from '../reducers/Settings'
-
-import {
-  Divider,
-  Drawer,
-  IconButton,
-  Input,
-  InputLabel,
-  MenuItem,
-  Select,
-  Typography,
-  Switch,
-  Tooltip,
-} from '@material-ui/core'
-const sha1 = require('sha1')
-
-export const autoExpandLimitSet = [{
-  limit: 0,
-  name: 'Collapsed',
-}, {
-  limit: 2,
-  name: 'Few',
-}, {
-  limit: 3,
-  name: 'Some',
-}, {
-  limit: 10,
-  name: 'Most',
-}, {
-  limit: 1E6,
-  name: 'All',
-}]
-
-const styles: StyleRulesCallback = theme => ({
-  drawer: {
-    backgroundColor: theme.palette.background.default,
-    flexShrink: 0,
-    userSelect: 'none' as 'none',
-  },
-  paper: {
-    width: '300px',
-  },
-  title: {
-    color: theme.palette.text.primary,
-    paddingTop: theme.spacing(1),
-    ...theme.mixins.toolbar,
-  },
-  input: {
-    minWidth: '150px',
-    margin: `auto ${theme.spacing(1)} auto ${theme.spacing(2)}px`,
-  },
-  author: {
-    margin: 'auto 8px 8px auto',
-    color: theme.palette.text.hint,
-    cursor: 'pointer' as 'pointer',
-  },
-  switchBase: {
-    height: theme.spacing(4),
-  },
-})
-
-interface Props {
-  actions: typeof settingsActions
-  autoExpandLimit: number
-  classes: any
-  highlightTopicUpdates: boolean
-  selectTopicWithMouseOver: boolean
-  store?: any
-  topicOrder: TopicOrder
-  visible: boolean
-}
-
-class Settings extends React.Component<Props, {}> {
-  constructor(props: any) {
-    super(props)
-    this.state = {}
-  }
-
-  public render() {
-    const { classes, actions, visible } = this.props
-    return (
-      <Drawer
-        anchor="left"
-        className={classes.drawer}
-        open={visible}
-        variant="persistent"
-      >
-        <div
-          className={classes.paper}
-          tabIndex={0}
-          role="button"
-        >
-
-          <Typography className={classes.title} variant="h6" color="inherit">
-            <IconButton onClick={actions.toggleSettingsVisibility}>
-              <ChevronRight />
-            </IconButton>
-            Settings
-          </Typography>
-          <Divider />
-
-          {this.renderAutoExpand()}
-          {this.renderNodeOrder()}
-          {this.renderHighlightTopicUpdates()}
-          {this.selectTopicsOnMouseOver()}
-        </div>
-        <Tooltip placement="top" title="App Author">
-          <Typography className={classes.author} onClick={this.openGithubPage}>
-            by Thomas Nordquist
-          </Typography>
-        </Tooltip>
-        <BrokerStatistics />
-      </Drawer>
-    )
-  }
-
-  private openGithubPage = () => {
-    shell.openExternal('https://github.com/thomasnordquist')
-  }
-
-  private renderHighlightTopicUpdates() {
-    const { highlightTopicUpdates, actions } = this.props
-
-    return this.renderSwitch('Show Activity', highlightTopicUpdates, actions.togglehighlightTopicUpdates, 'Topics blink when a new message arrives')
-  }
-
-  private renderSwitch(title: string, checked: boolean, action: any, tooltip: string) {
-    const { classes } = this.props
-
-    const clickHandler = (e: React.MouseEvent) => {
-      e.stopPropagation()
-      e.preventDefault()
-      action()
-    }
-
-    return (
-      <div style={{ padding: '8px', display: 'flex' }}>
-        <Tooltip title={tooltip}>
-          <InputLabel
-            htmlFor={`toggle-${sha1(title)}`}
-            onClick={clickHandler}
-            style={{ flex: '1', paddingTop: '8px' }}
-          >
-            {title}
-          </InputLabel>
-        </Tooltip>
-        <Tooltip title={tooltip}>
-          <Switch
-            name={`toggle-${sha1(title)}`}
-            checked={checked}
-            onChange={action}
-            color="primary"
-            classes={{ switchBase: classes.switchBase }}
-          />
-        </Tooltip>
-      </div>
-    )
-  }
-
-  private selectTopicsOnMouseOver() {
-    const { actions, selectTopicWithMouseOver } = this.props
-    const toggle = () => actions.selectTopicWithMouseOver(!selectTopicWithMouseOver)
-
-    return this.renderSwitch('Quick Preview', selectTopicWithMouseOver, toggle, 'Select topics on mouse over')
-  }
-
-  private renderAutoExpand() {
-    const { classes, autoExpandLimit } = this.props
-
-    const limits = autoExpandLimitSet.map(limit => <MenuItem key={limit.limit} value={limit.limit}>{limit.name}</MenuItem>)
-    return (
-      <div style={{ padding: '8px', display: 'flex' }}>
-        <InputLabel htmlFor="auto-expand" style={{ flex: '1', marginTop: '8px' }}>Auto Expand</InputLabel>
-        <Select
-            value={autoExpandLimit}
-            onChange={this.onChangeAutoExpand}
-            input={<Input name="auto-expand" id="auto-expand-label-placeholder" />}
-            name="auto-expand"
-            className={classes.input}
-            style={{ flex: '1' }}
-        >
-          {limits}
-        </Select>
-      </div>
-    )
-  }
-
-  private onChangeAutoExpand = (e: React.ChangeEvent<HTMLSelectElement>) => {
-    this.props.actions.setAutoExpandLimit(parseInt(e.target.value, 10))
-  }
-
-  private renderNodeOrder() {
-    const { classes, topicOrder } = this.props
-
-    return (
-      <div style={{ padding: '8px', display: 'flex' }}>
-        <InputLabel htmlFor="auto-expand" style={{ flex: '1', marginTop: '8px' }}>Topic Order</InputLabel>
-        <Select
-          value={topicOrder}
-          onChange={this.onChangeSorting}
-          input={<Input name="node-order" id="node-order-label-placeholder" />}
-          displayEmpty={true}
-          name="node-order"
-          className={classes.input}
-          style={{ flex: '1' }}
-        >
-          <MenuItem value={TopicOrder.none}><em>default</em></MenuItem>
-          <MenuItem value={TopicOrder.abc}>a-z</MenuItem>
-          <MenuItem value={TopicOrder.messages}>{TopicOrder.messages}</MenuItem>
-          <MenuItem value={TopicOrder.topics}>{TopicOrder.topics}</MenuItem>
-        </Select>
-    </div>)
-  }
-
-  private onChangeSorting = (e: React.ChangeEvent<HTMLSelectElement>) => {
-    this.props.actions.setTopicOrder(e.target.value as TopicOrder)
-  }
-}
-
-const mapStateToProps = (state: AppState) => {
-  return {
-    autoExpandLimit: state.settings.autoExpandLimit,
-    topicOrder: state.settings.topicOrder,
-    visible: state.settings.visible,
-    highlightTopicUpdates: state.settings.highlightTopicUpdates,
-    selectTopicWithMouseOver: state.settings.selectTopicWithMouseOver,
-  }
-}
-
-const mapDispatchToProps = (dispatch: any) => {
-  return {
-    actions: bindActionCreators(settingsActions, dispatch),
-  }
-}
-
-export default withStyles(styles)(connect(mapStateToProps, mapDispatchToProps)(Settings))

app/src/components/SettingsDrawer/BooleanSwitch.tsx

@@ -0,0 +1,36 @@
+import * as React from 'react'
+import { InputLabel, Switch, Theme, Tooltip } from '@material-ui/core'
+import { withStyles } from '@material-ui/styles'
+const sha1 = require('sha1')
+
+function BooleanSwitch(props: { title: string; value: boolean; tooltip: string; action: () => void; classes: any }) {
+  const { tooltip, value, action, title, classes } = props
+
+  const clickHandler = (e: React.MouseEvent) => {
+    e.stopPropagation()
+    e.preventDefault()
+    action()
+  }
+
+  return (
+    <div style={{ padding: '8px', display: 'flex' }}>
+      <Tooltip title={tooltip}>
+        <InputLabel htmlFor={`toggle-${sha1(title)}`} onClick={clickHandler} className={classes.label}>
+          {title}
+        </InputLabel>
+      </Tooltip>
+      <Tooltip title={tooltip}>
+        <Switch name={`toggle-${sha1(title)}`} checked={value} onChange={action} color="primary" />
+      </Tooltip>
+    </div>
+  )
+}
+
+const styles = (theme: Theme) => ({
+  label: {
+    flex: '1',
+    paddingTop: theme.spacing(1.5),
+  },
+})
+
+export default withStyles(styles)(BooleanSwitch)

app/src/components/SettingsDrawer/BrokerStatistics.tsx

@@ -1,10 +1,12 @@
-import * as q from '../../../backend/src/Model'
+import * as q from '../../../../backend/src/Model'
 import * as React from 'react'
-import { AppState } from '../reducers'
+import { AppState } from '../../reducers'
 import { connect } from 'react-redux'
-import { StyleRulesCallback, withStyles } from '@material-ui/core/styles'
-import { TopicViewModel } from '../TopicViewModel'
+import { StyleRulesCallback, withStyles, Theme } from '@material-ui/core/styles'
+import { TopicViewModel } from '../../model/TopicViewModel'
 import { Typography } from '@material-ui/core'
+import { Base64Message } from '../../../../backend/src/Model/Base64Message'
+import teal from '@material-ui/core/colors/teal'
 
 const abbreviate = require('number-abbreviate')
 
@@ -13,7 +15,7 @@ interface Stats {
   title: string
 }
 
-const styles: StyleRulesCallback = theme => ({
+const styles = (theme: Theme) => ({
   flex: {
     display: 'flex',
     width: '100%',
@@ -21,7 +23,7 @@ const styles: StyleRulesCallback = theme => ({
   container: {
     width: '100%',
     height: '224px',
-    backgroundColor: 'rebeccapurple',
+    backgroundColor: theme.palette.type === 'dark' ? 'rebeccapurple' : '#ebebeb',
     marginBottom: 0,
     padding: '8px',
   },
@@ -38,6 +40,15 @@ class BrokerStatistics extends React.Component<Props, {}> {
     this.state = {}
   }
 
+  private renderPair(tree: q.Tree<TopicViewModel>, a: Stats, b: Stats) {
+    return (
+      <div className={this.props.classes.flex}>
+        <div style={{ flex: 1 }}>{this.renderStat(tree, a)}</div>
+        <div style={{ flex: 1 }}>{this.renderStat(tree, b)}</div>
+      </div>
+    )
+  }
+
   public render() {
     const { tree, classes } = this.props
     if (!tree || !tree.findNode('$SYS/broker/clients/total')) {
@@ -94,28 +105,24 @@ class BrokerStatistics extends React.Component<Props, {}> {
     )
   }
 
-  private renderPair(tree: q.Tree<TopicViewModel>, a: Stats, b: Stats) {
-    return (
-      <div className={this.props.classes.flex}>
-        <div style={{ flex: 1 }}>{this.renderStat(tree, a)}</div>
-        <div style={{ flex: 1 }}>{this.renderStat(tree, b)}</div>
-      </div>
-    )
-  }
-
   public renderStat(tree: q.Tree<TopicViewModel>, stat: Stats) {
     const node = tree.findNode(stat.topic)
-    if (!node) {
+    if (!node || !node.message) {
       return null
     }
 
-    let value = node.message && node.message.value
-    value = !isNaN(value) ? abbreviate(value) : value
+    const str = node.message.value ? Base64Message.toUnicodeString(node.message.value) : ''
+    let value = node.message && node.message.value ? parseFloat(str) : NaN
+    value = !isNaN(value) ? abbreviate(value) : str
 
     return (
       <div key={stat.title}>
-        <Typography><b>{stat.title}</b></Typography>
-        <Typography style={{ paddingLeft: '8px' }}><i>{value}</i></Typography>
+        <Typography>
+          <b>{stat.title}</b>
+        </Typography>
+        <Typography style={{ paddingLeft: '8px' }}>
+          <i>{value}</i>
+        </Typography>
       </div>
     )
   }

app/src/components/SettingsDrawer/Settings.tsx

@@ -0,0 +1,263 @@
+import * as React from 'react'
+import BooleanSwitch from './BooleanSwitch'
+import BrokerStatistics from './BrokerStatistics'
+import ChevronRight from '@material-ui/icons/ChevronRight'
+import TimeLocale from './TimeLocale'
+import { AppState } from '../../reducers'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { globalActions, settingsActions } from '../../actions'
+import { shell } from 'electron'
+import { Theme, withStyles } from '@material-ui/core/styles'
+import { TopicOrder } from '../../reducers/Settings'
+
+import {
+  Divider,
+  Drawer,
+  IconButton,
+  Input,
+  InputLabel,
+  MenuItem,
+  Select,
+  Typography,
+  Tooltip,
+} from '@material-ui/core'
+
+export const autoExpandLimitSet = [
+  {
+    limit: 0,
+    name: 'Collapsed',
+  },
+  {
+    limit: 2,
+    name: 'Few',
+  },
+  {
+    limit: 5,
+    name: 'Some',
+  },
+  {
+    limit: 15,
+    name: 'Most',
+  },
+  {
+    limit: 30,
+    name: 'Most',
+  },
+  {
+    limit: 1e6,
+    name: 'All',
+  },
+]
+
+const styles = (theme: Theme) => ({
+  drawer: {
+    backgroundColor: theme.palette.background.default,
+    flexShrink: 0,
+    userSelect: 'none' as 'none',
+  },
+  paper: {
+    width: '300px',
+  },
+  title: {
+    color: theme.palette.text.primary,
+    paddingTop: theme.spacing(1),
+    ...theme.mixins.toolbar,
+  },
+  input: {
+    minWidth: '150px',
+    margin: `auto ${theme.spacing(1)} auto ${theme.spacing(2)}px`,
+  },
+  author: {
+    margin: 'auto 8px 8px auto',
+    color: theme.palette.text.hint,
+    cursor: 'pointer' as 'pointer',
+  },
+})
+
+interface Props {
+  actions: {
+    settings: typeof settingsActions
+    global: typeof globalActions
+  }
+  autoExpandLimit: number
+  classes: any
+  highlightTopicUpdates: boolean
+  selectTopicWithMouseOver: boolean
+  store?: any
+  topicOrder: TopicOrder
+  visible: boolean
+  theme: 'light' | 'dark'
+}
+
+class Settings extends React.Component<Props, {}> {
+  constructor(props: any) {
+    super(props)
+    this.state = {}
+  }
+
+  private openGithubPage = () => {
+    shell.openExternal('https://github.com/thomasnordquist')
+  }
+
+  private renderHighlightTopicUpdates() {
+    const { highlightTopicUpdates, actions } = this.props
+
+    return (
+      <BooleanSwitch
+        title="Show Activity"
+        tooltip="Topics blink when a new message arrives"
+        value={highlightTopicUpdates}
+        action={actions.settings.toggleHighlightTopicUpdates}
+      />
+    )
+  }
+
+  private selectTopicsOnMouseOver() {
+    const { actions, selectTopicWithMouseOver } = this.props
+    const toggle = () => actions.settings.selectTopicWithMouseOver(!selectTopicWithMouseOver)
+
+    return (
+      <BooleanSwitch
+        title="Quick Preview"
+        tooltip="Select topics on mouse over"
+        value={selectTopicWithMouseOver}
+        action={toggle}
+      />
+    )
+  }
+
+  private toggleTheme() {
+    const { actions, theme } = this.props
+
+    return (
+      <BooleanSwitch
+        title="Dark Mode"
+        tooltip="Enable dark theme"
+        value={theme === 'dark'}
+        action={actions.settings.toggleTheme}
+      />
+    )
+  }
+
+  private renderAutoExpand() {
+    const { classes, autoExpandLimit } = this.props
+
+    const limits = autoExpandLimitSet.map(limit => (
+      <MenuItem key={limit.limit} value={limit.limit}>
+        {limit.limit < 10000 && limit.limit > 0 ? `≤ ${limit.limit} topics` : limit.name}
+      </MenuItem>
+    ))
+    return (
+      <div style={{ padding: '8px', display: 'flex' }}>
+        <InputLabel htmlFor="auto-expand" style={{ flex: '1', marginTop: '8px' }}>
+          Auto Expand
+        </InputLabel>
+        <Select
+          value={autoExpandLimit}
+          onChange={this.onChangeAutoExpand}
+          input={<Input name="auto-expand" id="auto-expand-label-placeholder" />}
+          name="auto-expand"
+          className={classes.input}
+          style={{ flex: '1' }}
+        >
+          {limits}
+        </Select>
+      </div>
+    )
+  }
+
+  private onChangeAutoExpand = (e: React.ChangeEvent<{ value: unknown }>) => {
+    this.props.actions.settings.setAutoExpandLimit(parseInt(String(e.target.value), 10))
+  }
+
+  private renderNodeOrder() {
+    const { classes, topicOrder } = this.props
+
+    return (
+      <div style={{ padding: '8px', display: 'flex' }}>
+        <InputLabel htmlFor="auto-expand" style={{ flex: '1', marginTop: '8px' }}>
+          Topic Order
+        </InputLabel>
+        <Select
+          value={topicOrder}
+          onChange={this.onChangeSorting}
+          input={<Input name="node-order" id="node-order-label-placeholder" />}
+          displayEmpty={true}
+          name="node-order"
+          className={classes.input}
+          style={{ flex: '1' }}
+        >
+          <MenuItem value={TopicOrder.none}>
+            <em>default</em>
+          </MenuItem>
+          <MenuItem value={TopicOrder.abc}>a-z</MenuItem>
+          <MenuItem value={TopicOrder.messages}>{TopicOrder.messages}</MenuItem>
+          <MenuItem value={TopicOrder.topics}>{TopicOrder.topics}</MenuItem>
+        </Select>
+      </div>
+    )
+  }
+
+  private onChangeSorting = (e: React.ChangeEvent<{ value: unknown }>) => {
+    this.props.actions.settings.setTopicOrder(e.target.value as TopicOrder)
+  }
+
+  public render() {
+    const { classes, actions, visible } = this.props
+    return (
+      <Drawer anchor="left" className={classes.drawer} open={visible} variant="persistent">
+        <div className={classes.paper} tabIndex={0} role="button">
+          <Typography className={classes.title} variant="h6" color="inherit">
+            <IconButton onClick={actions.global.toggleSettingsVisibility}>
+              <ChevronRight />
+            </IconButton>
+            Settings
+          </Typography>
+          <Divider style={{ userSelect: 'none' }} />
+        </div>
+        <div>
+          {this.renderAutoExpand()}
+          {this.renderNodeOrder()}
+          <TimeLocale />
+          {this.renderHighlightTopicUpdates()}
+          {this.selectTopicsOnMouseOver()}
+          {this.toggleTheme()}
+        </div>
+        <Tooltip placement="top" title="App Author">
+          <Typography className={classes.author} onClick={this.openGithubPage}>
+            by Thomas Nordquist
+          </Typography>
+        </Tooltip>
+        <BrokerStatistics />
+      </Drawer>
+    )
+  }
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    autoExpandLimit: state.settings.get('autoExpandLimit'),
+    topicOrder: state.settings.get('topicOrder'),
+    visible: state.globalState.get('settingsVisible'),
+    highlightTopicUpdates: state.settings.get('highlightTopicUpdates'),
+    selectTopicWithMouseOver: state.settings.get('selectTopicWithMouseOver'),
+    theme: state.settings.get('theme'),
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      settings: bindActionCreators(settingsActions, dispatch),
+      global: bindActionCreators(globalActions, dispatch),
+    },
+  }
+}
+
+export default withStyles(styles)(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps
+  )(Settings)
+)

app/src/components/SettingsDrawer/TimeLocale.tsx

@@ -0,0 +1,90 @@
+import * as React from 'react'
+import DateFormatter from '../helper/DateFormatter'
+import { AppState } from '../../reducers'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { Input, InputLabel, MenuItem, Select, StyleRulesCallback, Theme } from '@material-ui/core'
+import { settingsActions } from '../../actions'
+import { withStyles } from '@material-ui/styles'
+const moment = require('moment/min/moment-with-locales')
+
+interface Props {
+  actions: {
+    settings: typeof settingsActions
+  }
+  timeLocale: string
+  classes: any
+}
+
+function TimeLocaleSettings(props: Props) {
+  const { classes, timeLocale, actions } = props
+  const locales = moment.locales()
+  const date = new Date()
+  const localeMenuItems = locales.map((l: string) => (
+    <MenuItem key={l} value={l}>
+      <div>
+        Locale: <b>{l}</b>, Format:{' '}
+        <b>
+          <DateFormatter date={date} overrideLocale={l} />
+        </b>
+      </div>
+    </MenuItem>
+  ))
+
+  function updateLocale(e: React.ChangeEvent<{ value: unknown }>) {
+    const locale = e.target.value ? String(e.target.value) : ''
+    actions.settings.setTimeLocale(locale)
+  }
+
+  return (
+    <div style={{ padding: '8px', display: 'flex' }}>
+      <InputLabel htmlFor="time-locale" style={{ flex: '1', marginTop: '8px' }}>
+        Time Locale
+      </InputLabel>
+      <Select
+        value={timeLocale}
+        onChange={updateLocale}
+        input={<Input name="time-locale" id="time-locale-label-placeholder" />}
+        name="time-locale"
+        className={classes.input}
+        renderValue={v => <span>{String(v)}</span>}
+        style={{ flex: '1' }}
+      >
+        {localeMenuItems}
+      </Select>
+    </div>
+  )
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    timeLocale: state.settings.get('timeLocale'),
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      settings: bindActionCreators(settingsActions, dispatch),
+    },
+  }
+}
+
+const styles = (theme: Theme) => ({
+  input: {
+    minWidth: '150px',
+    margin: `auto ${theme.spacing(1)} auto ${theme.spacing(2)}px`,
+  },
+  selected: {
+    '& div': {
+      display: 'none',
+    },
+  },
+})
+
+export default withStyles(styles)(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps
+  )(TimeLocaleSettings)
+)

app/src/components/Sidebar/CodeBlockColors.ts

@@ -0,0 +1,19 @@
+export enum CodeBlockColors {
+  text = '#080808',
+  background = '#F9F9F9',
+  numeric = '#811F24',
+  boolean = '#811F24',
+  string = '#0B6125',
+  variable = '#234A97',
+  gutters = '#ebebeb',
+}
+
+export enum CodeBlockColorsBraceMonokai {
+  text = '#F8F8F2',
+  background = '#272822',
+  numeric = '#AE81FF',
+  boolean = '#AE81FF',
+  string = '#E6DB74',
+  variable = '#A6E22E',
+  gutters = '#2F3129',
+}

app/src/components/Sidebar/CodeDiff/ChartPreview.tsx

@@ -0,0 +1,91 @@
+import * as q from '../../../../../backend/src/Model'
+import * as React from 'react'
+import ShowChart from '@material-ui/icons/ShowChart'
+import TopicPlot from '../../TopicPlot'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+import { connect } from 'react-redux'
+import { Fade, Paper, Popper, Tooltip } from '@material-ui/core'
+import { JsonPropertyLocation } from '../../../../../backend/src/JsonAstParser'
+
+interface Props {
+  treeNode: q.TreeNode<any>
+  classes: any
+  literal: JsonPropertyLocation
+  actions: {
+    chart: typeof chartActions
+  }
+}
+
+function ChartPreview(props: Props) {
+  const chartIconRef = React.useRef(null)
+  const [open, setOpen] = React.useState(false)
+
+  const onClick = React.useCallback(() => {
+    props.actions.chart.addChart({
+      topic: props.treeNode.path(),
+      dotPath: props.literal.path !== '' ? props.literal.path : undefined,
+    })
+    setOpen(false)
+  }, [props.literal.path, props.treeNode])
+
+  const mouseOver = React.useCallback(() => {
+    setOpen(true)
+  }, [])
+
+  const mouseOut = React.useCallback(() => {
+    setOpen(false)
+  }, [])
+
+  const hasEnoughDataToDisplayDiagrams = props.treeNode.messageHistory.count() > 1
+
+  const addChartToPanelButton = hasEnoughDataToDisplayDiagrams ? (
+    <Tooltip title="Add to chart panel">
+      <ShowChart
+        ref={chartIconRef}
+        className={props.classes.icon}
+        onMouseEnter={mouseOver}
+        onMouseLeave={mouseOut}
+        onClick={onClick}
+        data-test-type="ShowChart"
+        data-test={props.literal.path}
+      />
+    </Tooltip>
+  ) : (
+    <Tooltip title="Add to chart panel, not enough data for preview">
+      <ShowChart
+        onClick={onClick}
+        className={props.classes.icon}
+        style={{ color: '#aaa' }}
+        data-test-type="ShowChart"
+        data-test={props.literal.path}
+      />
+    </Tooltip>
+  )
+
+  return (
+    <span>
+      {addChartToPanelButton}
+      <Popper open={open} anchorEl={chartIconRef.current} placement="left-end">
+        <Fade in={open} timeout={300}>
+          <Paper style={{ width: '300px' }}>
+            {open ? <TopicPlot history={props.treeNode.messageHistory} dotPath={props.literal.path} /> : <span />}
+          </Paper>
+        </Fade>
+      </Popper>
+    </span>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      chart: bindActionCreators(chartActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(ChartPreview)

app/src/components/Sidebar/CodeDiff/DiffCount.tsx

@@ -0,0 +1,45 @@
+import * as React from 'react'
+import { Theme } from '@material-ui/core'
+import { withStyles } from '@material-ui/styles'
+
+interface Props {
+  changes: Array<Diff.Change>
+  classes: { [s: string]: any }
+  nameOfCompareMessage: string
+}
+
+function changeAmount(props: Props) {
+  const additions = props.changes.map(change => (change.added === true ? change.count || 0 : 0)).reduce((a, b) => a + b)
+  const deletions = props.changes
+    .map(change => (change.removed === true ? change.count || 0 : 0))
+    .reduce((a, b) => a + b)
+  if (additions === 0 && deletions === 0) {
+    return null
+  }
+
+  return (
+    <span style={{ display: 'block', marginBottom: '8px', float: 'right' }}>
+      <span>
+        Comparing with <b>{props.nameOfCompareMessage}</b> message:&nbsp;
+        <span className={props.classes.additions}>
+          + {additions} line{additions === 1 ? '' : 's'}
+        </span>
+        ,{' '}
+        <span className={props.classes.deletions}>
+          - {deletions} line{deletions === 1 ? '' : 's'}
+        </span>
+      </span>
+    </span>
+  )
+}
+
+const style = (theme: Theme) => ({
+  additions: {
+    color: 'rgb(10, 255, 10)',
+  },
+  deletions: {
+    color: 'rgb(255, 10, 10)',
+  },
+})
+
+export default withStyles(style)(changeAmount)

app/src/components/Sidebar/CodeDiff/Gutters.tsx

@@ -0,0 +1,104 @@
+import * as diff from 'diff'
+import * as q from '../../../../../backend/src/Model'
+import * as React from 'react'
+import Add from '@material-ui/icons/Add'
+import ChartPreview from './ChartPreview'
+import Remove from '@material-ui/icons/Remove'
+import { JsonPropertyLocation } from '../../../../../backend/src/JsonAstParser'
+import { lineChangeStyle, trimNewlineRight } from './util'
+import { Theme } from '@material-ui/core'
+import { withStyles } from '@material-ui/styles'
+
+interface Props {
+  changes: Array<diff.Change>
+  literalPositions: Array<JsonPropertyLocation>
+  classes: any
+  className: string
+  treeNode: q.TreeNode<any>
+}
+
+const style = (theme: Theme) => {
+  const icon = {
+    verticalAlign: 'top',
+    width: '12px',
+    height: '12px',
+    marginTop: '2px',
+    borderRadius: '50%',
+  }
+
+  return {
+    icon,
+    iconButton: {
+      ...icon,
+      marginTop: '0px',
+      width: '16px',
+      height: '16px',
+      padding: '2px',
+      '&:hover': {
+        color: theme.palette.primary.contrastText,
+        backgroundColor: theme.palette.primary.main,
+      },
+    },
+    gutterLine: {
+      textAlign: 'right' as 'right',
+      paddingRight: theme.spacing(0.5),
+      height: '16px',
+      width: '100%',
+    },
+  }
+}
+
+function tokensForLine(change: diff.Change, line: number, props: Props) {
+  const { classes, literalPositions } = props
+  const literal = literalPositions[line]
+
+  const chartPreview = Boolean(literal) ? (
+    <ChartPreview
+      key="chartPreview"
+      treeNode={props.treeNode}
+      classes={{ icon: props.classes.iconButton }}
+      literal={literal}
+    />
+  ) : null
+
+  if (change.added) {
+    return [chartPreview, <Add key="add" className={classes.icon} />]
+  } else if (change.removed) {
+    return [<Remove key="remove" className={classes.icon} />]
+  } else {
+    return [
+      chartPreview,
+      <div
+        key="placeholder"
+        style={{ width: '12px', display: 'inline-block' }}
+        dangerouslySetInnerHTML={{ __html: '&nbsp;' }}
+      />,
+    ]
+  }
+}
+
+function Gutters(props: Props) {
+  let currentLine = -1
+  const gutters = props.changes
+    .map((change, key) => {
+      return trimNewlineRight(change.value)
+        .split('\n')
+        .map((_, idx) => {
+          currentLine = !change.removed ? currentLine + 1 : currentLine
+          return (
+            <div key={`${key}-${idx}`} style={lineChangeStyle(change)} className={props.classes.gutterLine}>
+              {tokensForLine(change, currentLine, props)}
+            </div>
+          )
+        })
+    })
+    .reduce((a, b) => a.concat(b), [])
+
+  return (
+    <span>
+      <pre className={props.className}>{gutters}</pre>
+    </span>
+  )
+}
+
+export default withStyles(style)(Gutters)

app/src/components/Sidebar/CodeDiff/index.tsx

@@ -0,0 +1,107 @@
+import * as diff from 'diff'
+import * as Prism from 'prismjs'
+import * as q from '../../../../../backend/src/Model'
+import * as React from 'react'
+import DiffCount from './DiffCount'
+import Gutters from './Gutters'
+import { isPlottable, lineChangeStyle, trimNewlineRight } from './util'
+import { JsonPropertyLocation, literalsMappedByLines } from '../../../../../backend/src/JsonAstParser'
+import { selectTextWithCtrlA } from '../../../utils/handleTextSelectWithCtrlA'
+import { style } from './style'
+import { withStyles } from '@material-ui/core'
+import 'prismjs/components/prism-json'
+
+interface Props {
+  treeNode: q.TreeNode<any>
+  previous: string
+  current: string
+  nameOfCompareMessage: string
+  language?: 'json'
+  classes: any
+}
+
+interface State {}
+
+class CodeDiff extends React.Component<Props, State> {
+  private handleCtrlA = selectTextWithCtrlA({ targetSelector: 'pre ~ pre' })
+
+  constructor(props: Props) {
+    super(props)
+    this.state = {}
+  }
+
+  private isValidJson(str: string) {
+    try {
+      JSON.parse(str)
+      return true
+    } catch (error) {
+      return false
+    }
+  }
+
+  private plottableLiteralsIndexedWithLineNumbers() {
+    const allLiterals = this.isValidJson(this.props.current) ? literalsMappedByLines(this.props.current) || [] : []
+
+    return allLiterals.map((l: JsonPropertyLocation) => (isPlottable(l.value) ? l : undefined)) as Array<
+      JsonPropertyLocation
+    >
+  }
+
+  private renderStyledCodeLines(changes: Array<Diff.Change>) {
+    const styledLines = Prism.highlight(this.props.current, Prism.languages.json, 'json').split('\n')
+    let lineNumber = 0
+
+    return changes
+      .map((change, key) => {
+        const hasStyledCode = change.removed !== true
+        const changedLines = change.count || 0
+        if (hasStyledCode && this.props.language === 'json') {
+          const currentLines = styledLines.slice(lineNumber, lineNumber + changedLines)
+          const lines = currentLines.map((html: string, idx: number) => {
+            return (
+              <div key={`${key}-${idx}`} style={lineChangeStyle(change)} className={this.props.classes.line}>
+                <span dangerouslySetInnerHTML={{ __html: html }} />
+              </div>
+            )
+          })
+          lineNumber += changedLines
+
+          return [<div key={key}>{lines}</div>]
+        }
+
+        return trimNewlineRight(change.value)
+          .split('\n')
+          .map((line, idx) => {
+            return (
+              <div key={`${key}-${idx}`} style={lineChangeStyle(change)} className={this.props.classes.line}>
+                <span>{line}</span>
+              </div>
+            )
+          })
+      })
+      .reduce((a, b) => a.concat(b), [])
+  }
+
+  public render() {
+    const changes = diff.diffLines(this.props.previous, this.props.current)
+    const literalPositions = this.plottableLiteralsIndexedWithLineNumbers()
+    const code = this.renderStyledCodeLines(changes)
+
+    return (
+      <div>
+        <div tabIndex={0} onKeyDown={this.handleCtrlA} className={this.props.classes.codeWrapper}>
+          <Gutters
+            className={this.props.classes.gutters}
+            changes={changes}
+            treeNode={this.props.treeNode}
+            literalPositions={literalPositions}
+          />
+          <pre className={this.props.classes.codeBlock}>{code}</pre>
+        </div>
+        <DiffCount changes={changes} nameOfCompareMessage={this.props.nameOfCompareMessage} />
+      </div>
+    )
+  }
+}
+
+export default withStyles(style)(CodeDiff)

app/src/components/Sidebar/CodeDiff/style.tsx

@@ -0,0 +1,63 @@
+import { CodeBlockColors, CodeBlockColorsBraceMonokai } from '../CodeBlockColors'
+import { Theme } from '@material-ui/core'
+
+export const style = (theme: Theme) => {
+  const codeBlockColors = theme.palette.type === 'light' ? CodeBlockColors : CodeBlockColorsBraceMonokai
+  const codeBaseStyle = {
+    font: "12px/normal 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', monospace",
+    display: 'inline-grid' as 'inline-grid',
+    margin: '0',
+    padding: '1px 0 0 0',
+  }
+
+  return {
+    line: {
+      lineHeight: 'normal' as 'normal',
+      paddingLeft: '4px',
+      width: '100%',
+      height: '16px',
+    },
+    codeWrapper: {
+      display: 'flex',
+      maxHeight: '15em',
+      overflow: 'auto',
+      backgroundColor: `${codeBlockColors.background}`,
+      margin: '8px 0 0 0',
+    },
+    gutters: {
+      ...codeBaseStyle,
+      width: '33px',
+      backgroundColor: codeBlockColors.gutters,
+      userSelect: 'none' as 'none',
+    },
+    codeBlock: {
+      ...codeBaseStyle,
+      width: 'calc(100% - 33px)',
+      backgroundColor: 'inherit !important',
+      '& span': {
+        color: codeBlockColors.text,
+      },
+      '& .token.number': {
+        color: codeBlockColors.numeric,
+      },
+      '& .token.boolean': {
+        color: codeBlockColors.numeric,
+      },
+      '& .token.property': {
+        color: codeBlockColors.variable,
+      },
+      '& .token.string': {
+        color: codeBlockColors.string,
+      },
+      '& .token': {
+        color: codeBlockColors.text,
+      },
+      '& .token.operator': {
+        color: codeBlockColors.text,
+      },
+      '& .token.punctuation': {
+        color: codeBlockColors.text,
+      },
+    },
+  }
+}

app/src/components/Sidebar/CodeDiff/util.tsx

@@ -0,0 +1,69 @@
+export function trimNewlineRight(str: string) {
+  if (str.slice(-1) === '\n') {
+    return str.slice(0, -1)
+  }
+
+  return str
+}
+
+const gutterBaseStyle = {}
+
+const additionStyle = {
+  ...gutterBaseStyle,
+  backgroundColor: 'rgba(10, 255, 10, 0.3)',
+}
+
+const deletionStyle = {
+  ...gutterBaseStyle,
+  backgroundColor: 'rgba(255, 10, 10, 0.3)',
+}
+
+export function lineChangeStyle(change: Diff.Change) {
+  if (change.added === true) {
+    return additionStyle
+  }
+
+  if (change.removed === true) {
+    return deletionStyle
+  }
+
+  return gutterBaseStyle
+}
+
+export function toPlottableValue(value: any): number | undefined {
+  if (typeof value === 'number') {
+    return value
+  }
+
+  if (typeof value === 'boolean') {
+    return value ? 1 : 0
+  }
+
+  const isNumber = !isNaN(value)
+  const floatVal = parseFloat(value)
+  if (isNumber && !isNaN(floatVal)) {
+    return floatVal
+  }
+
+  const intVal = parseInt(value, undefined)
+  if (isNumber && !isNaN(intVal)) {
+    return intVal
+  }
+
+  // Convert "on" / "off" to int 1 / 0
+  if (typeof value === 'string') {
+    if (/^(on$)|(off$)/i.test(value)) {
+      return value.toLowerCase() === 'on' ? 1 : 0
+    }
+    if (/^[0-9]*,[0-9]+$/.test(value)) {
+      let parsedFloat = parseFloat(value.replace(',', '.'))
+      if (!isNaN(parsedFloat)) {
+        return parsedFloat
+      }
+    }
+  }
+}
+
+export function isPlottable(value: any) {
+  return !isNaN(toPlottableValue(value) as any)
+}

app/src/components/Sidebar/HistoryDrawer.tsx

@@ -1,26 +1,28 @@
 import * as React from 'react'
-
 import { Badge, Typography } from '@material-ui/core'
+import { selectTextWithCtrlA } from '../../utils/handleTextSelectWithCtrlA'
 import { Theme, withStyles } from '@material-ui/core/styles'
 
 interface HistoryItem {
+  key: string
   title: JSX.Element | string
-  value: string | any
+  value: string
   selected?: boolean
 }
 
 interface Props {
-  items: HistoryItem[]
+  items: Array<HistoryItem>
   onClick?: (index: number, element: EventTarget) => void
   classes: any
   contentTypeIndicator?: JSX.Element
+  theme: Theme
 }
 
 interface State {
   collapsed: boolean
 }
 
-class MessageHistory extends React.Component<Props, State> {
+class HistoryDrawer extends React.Component<Props, State> {
   constructor(props: any) {
     super(props)
     this.state = {
@@ -28,9 +30,17 @@ class MessageHistory extends React.Component<Props, State> {
     }
   }
 
+  private toggle = () => {
+    this.setState({ collapsed: !this.state.collapsed })
+  }
+
+  private handleCtrlA = selectTextWithCtrlA({ targetSelector: 'pre' })
+
   public renderHistory() {
     const style = (element: HistoryItem) => ({
-      backgroundColor: element.selected ? 'rgba(120, 120, 120, 0.6)' : 'rgba(80, 80, 80, 0.6)',
+      backgroundColor: element.selected
+        ? this.props.theme.palette.action.selected
+        : this.props.theme.palette.action.hover,
       margin: '8px',
       padding: '8px 8px 0 8px',
       cursor: this.props.onClick ? 'pointer' : 'inherit',
@@ -39,13 +49,19 @@ class MessageHistory extends React.Component<Props, State> {
     const messageStyle: React.CSSProperties = { textOverflow: 'ellipsis', whiteSpace: 'nowrap', overflow: 'hidden' }
     const elements = this.props.items.map((element, index) => (
       <div
-        key={index}
+        key={element.key}
         style={style(element)}
         onClick={(event: React.MouseEvent) => this.props.onClick && this.props.onClick(index, event.target)}
+        tabIndex={0}
+        onKeyDown={this.handleCtrlA}
       >
-        <div><i>{element.title}</i></div>
+        <div>
+          <i>{element.title}</i>
+        </div>
         <div style={messageStyle}>
-          <span><pre>{element.value}</pre></span>
+          <span>
+            <pre>{element.value}</pre>
+          </span>
         </div>
       </div>
     ))
@@ -53,12 +69,8 @@ class MessageHistory extends React.Component<Props, State> {
     const visible = this.props.items.length > 0 && this.state.collapsed
 
     return (
-      <div style={{ backgroundColor: 'rgba(60, 60, 60, 0.6)', marginTop: '16px' }}>
-        <Typography
-          component={'span'}
-          onClick={this.toggle}
-          style={{ cursor: 'pointer' }}
-        >
+      <div className={this.props.classes.main}>
+        <Typography component={'span'} onClick={this.toggle} style={{ cursor: 'pointer' }}>
           <Badge
             classes={{ badge: this.props.classes.badge }}
             invisible={!visible}
@@ -69,7 +81,7 @@ class MessageHistory extends React.Component<Props, State> {
           </Badge>
           <div style={{ float: 'right' }}>{this.state.collapsed ? this.props.contentTypeIndicator : null}</div>
         </Typography>
-        <div style={{ maxHeight: '230px', overflowY: 'scroll'  }}>
+        <div style={{ maxHeight: '230px', overflowY: 'scroll' }}>
           {this.state.collapsed ? null : this.props.children}
           {this.state.collapsed ? null : elements}
         </div>
@@ -78,22 +90,16 @@ class MessageHistory extends React.Component<Props, State> {
   }
 
   public render() {
-    return (
-      <div
-        style={{ display: 'block', width: '100%' }}
-      >
-        {this.renderHistory()}
-      </div>
-    )
-  }
-
-  private toggle = () => {
-    this.setState({ collapsed: !this.state.collapsed })
+    return <div style={{ display: 'block', width: '100%' }}>{this.renderHistory()}</div>
   }
 }
 
 const styles = (theme: Theme) => ({
-  badge: { right:'-25px' },
+  main: {
+    backgroundColor: 'rgba(170, 170, 170, 0.2)',
+    marginTop: '16px',
+  },
+  badge: { right: '-25px' },
 })
 
-export default withStyles(styles)(MessageHistory)
+export default withStyles(styles, { withTheme: true })(HistoryDrawer)

app/src/components/Sidebar/MessageHistory.tsx

@@ -1,91 +0,0 @@
-import * as q from '../../../../backend/src/Model'
-import * as React from 'react'
-import BarChart from '@material-ui/icons/BarChart'
-import DateFormatter from '../helper/DateFormatter'
-import History from './History'
-import { TopicViewModel } from '../../TopicViewModel'
-
-const PlotHistory = React.lazy(() => import('./PlotHistory'))
-
-const throttle = require('lodash.throttle')
-
-interface Props {
-  node?: q.TreeNode<TopicViewModel>
-  selected?: q.Message
-  onSelect: (message: q.Message) => void
-}
-
-interface State {
-  displayMessage?: q.Message,
-  anchorEl?: HTMLElement
-}
-
-class MessageHistory extends React.Component<Props, State> {
-  constructor(props: any) {
-    super(props)
-    this.state = { }
-  }
-
-  private updateNode = throttle(() => {
-    this.setState(this.state)
-  }, 300)
-
-  public componentWillReceiveProps(nextProps: Props) {
-    this.props.node && this.props.node.onMessage.unsubscribe(this.updateNode)
-    nextProps.node && nextProps.node.onMessage.subscribe(this.updateNode)
-  }
-
-  public componentDidMount() {
-    this.props.node && this.props.node.onMessage.subscribe(this.updateNode)
-  }
-
-  public componentWillUnMount() {
-    this.props.node && this.props.node.onMessage.unsubscribe(this.updateNode)
-  }
-
-  public render() {
-    const { node } = this.props
-    if (!node) {
-      return null
-    }
-
-    const history = node.messageHistory.toArray()
-    const historyElements = history.reverse().map(message => ({
-      title: <DateFormatter date={message.received} />,
-      value: message.value,
-      selected: message && message === this.props.selected,
-    }))
-
-    const numericMessages = history.filter(message => !isNaN(parseFloat(message.value)))
-    const showPlot = numericMessages.length >= 2
-
-    return (
-      <div>
-        <History
-          items={historyElements}
-          contentTypeIndicator={showPlot ? <BarChart /> : undefined}
-          onClick={this.displayMessage}
-        >
-          {showPlot ? this.renderPlot(numericMessages) : null}
-        </History>
-      </div>
-    )
-  }
-
-  public renderPlot(numericMessages: q.Message[]) {
-    return (
-      <React.Suspense fallback={<div>Loading...</div>}>
-        <PlotHistory messages={numericMessages} />
-      </React.Suspense>
-    )
-  }
-
-  private displayMessage = (index: number, eventTarget: EventTarget) => {
-    const message = this.props.node && this.props.node.messageHistory.toArray().reverse()[index]
-    if (message) {
-      this.props.onSelect(message)
-    }
-  }
-}
-
-export default MessageHistory

app/src/components/Sidebar/NodeStats.tsx

@@ -1,6 +1,6 @@
 import * as q from '../../../../backend/src/Model'
 import * as React from 'react'
-import { TopicViewModel } from '../../TopicViewModel'
+import { TopicViewModel } from '../../model/TopicViewModel'
 import { Typography } from '@material-ui/core'
 
 interface Props {

app/src/components/Sidebar/PlotHistory.tsx

@@ -1,72 +1,111 @@
-import * as q from '../../../../backend/src/Model'
 import * as React from 'react'
 import DateFormatter from '../helper/DateFormatter'
 import { default as ReactResizeDetector } from 'react-resize-detector'
+import { PlotCurveTypes } from '../../reducers/Charts'
+import { Theme, withTheme } from '@material-ui/core'
 import 'react-vis/dist/style.css'
-const { XYPlot, LineMarkSeries, Hint, YAxis, HorizontalGridLines } = require('react-vis')
+const { XYPlot, LineMarkSeries, Hint, XAxis, YAxis, HorizontalGridLines } = require('react-vis')
+const abbreviate = require('number-abbreviate')
 
 interface Props {
-  messages: q.Message[]
+  data: Array<{ x: number; y: number }>
+  theme: Theme
+  interpolation?: PlotCurveTypes
+  range?: [number?, number?]
+  color?: string
 }
 
-interface Stats {
-  width: number
-  value?: any
+function mapCurveType(type: PlotCurveTypes | undefined) {
+  switch (type) {
+    case 'curve':
+      return 'curveMonotoneX'
+    case 'linear':
+      return 'curveLinear'
+    case 'cubic_basis_spline':
+      return 'curveBasis'
+    case 'step_after':
+      return 'curveStepAfter'
+    case 'step_before':
+      return 'curveStepBefore'
+    default:
+      return 'curveMonotoneX'
+  }
 }
 
-class PlotHistory extends React.Component<Props, Stats> {
-  constructor(props: Props) {
-    super(props)
-    this.state = { width: 300 }
-  }
+export default withTheme((props: Props) => {
+  const [width, setWidth] = React.useState(300)
+  const [tooltip, setTooltip] = React.useState({ value: undefined })
+  const detectResize = React.useCallback(newWidth => setWidth(newWidth), [])
 
-  private resize = (width: number, height: number) => {
-    this.setState({ width: width - 12 })
-  }
-
-  public render() {
-    const data = this.props.messages.map((message) => {
-      return {
-        x: message.received.getTime(),
-        y: parseFloat(message.value),
-      }
-    })
-
-    return (
-      <div>
-        <XYPlot width={this.state.width} height={150}>
-          <HorizontalGridLines />
-          <YAxis />
-          <LineMarkSeries
-            onValueMouseOver={this._rememberValue}
-            onValueMouseOut={this._forgetValue}
-            size={3}
-            data={data}
-            curve="curveCardinal"
-          />
-          {this.state.value ? <Hint format={this.hintFormatter} value={this.state.value} /> : null}
-        </XYPlot>
-        <ReactResizeDetector handleWidth={true} onResize={this.resize} />
-      </div>
-    )
-  }
-
-  private hintFormatter = (point: any) => {
+  const hintFormatter = React.useCallback((point: any) => {
     return [
       { title: <b>Time</b>, value: <DateFormatter date={new Date(point.x)} /> },
       { title: <b>Value</b>, value: point.y },
     ]
+  }, [])
+
+  const hideTooltip = React.useCallback(() => {
+    setTooltip({ value: undefined })
+  }, [])
+
+  const showTooltip = React.useCallback((value: any) => {
+    setTooltip({ value })
+  }, [])
+
+  return React.useMemo(() => {
+    const data = props.data
+    const calculatedDomain = domainForData(data)
+    let yDomain: [number, number] = props.range
+      ? [props.range[0] || calculatedDomain[0], props.range[1] || calculatedDomain[1]]
+      : calculatedDomain
+
+    let color: string =
+      props.theme.palette.type === 'light' ? props.theme.palette.secondary.dark : props.theme.palette.primary.light
+    if (props.color) {
+      color = props.color
+    }
+
+    return (
+      <div style={{ height: '150px', overflow: 'hidden' }}>
+        <XYPlot width={width} height={180} yDomain={yDomain}>
+          <HorizontalGridLines />
+          <XAxis />
+          <YAxis width={45} tickFormat={(num: number) => abbreviate(num)} />
+          <LineMarkSeries
+            color={color}
+            onValueMouseOver={showTooltip}
+            onValueMouseOut={hideTooltip}
+            size={3}
+            data={data}
+            curve={mapCurveType(props.interpolation)}
+          />
+          {tooltip.value ? <Hint format={hintFormatter} value={tooltip.value} /> : null}
+        </XYPlot>
+        <ReactResizeDetector handleWidth={true} onResize={detectResize} />
+      </div>
+    )
+  }, [width, props.data, tooltip, props.interpolation, props.range, props.color, props.theme])
+})
+
+function domainForData(data: Array<{ x: number; y: number }>): [number, number] {
+  let max = data[0].y
+  let min = data[0].y
+  data.forEach(d => {
+    if (max < d.y) {
+      max = d.y
+    }
+    if (min > d.y) {
+      min = d.y
+    }
+  })
+
+  if ((max === 1 || max === 0) && (min === 1 || min === 0)) {
+    return [0, 1]
   }
 
-  private _forgetValue = () => {
-    this.setState({
-      value: undefined,
-    })
+  if (min === max) {
+    return [min - 0.5 * min, min + 0.5 * min]
   }
 
-  private _rememberValue = (value: any) => {
-    this.setState({ value })
-  }
+  return [min, max]
 }
-
-export default PlotHistory

app/src/components/Sidebar/Publish/Editor.tsx

@@ -0,0 +1,39 @@
+import * as React from 'react'
+import { default as AceEditor } from 'react-ace'
+import { Theme, withTheme } from '@material-ui/core'
+import 'brace/mode/json'
+import 'brace/theme/dawn'
+import 'brace/theme/monokai'
+import 'brace/mode/xml'
+import 'brace/mode/text'
+import 'react-ace'
+
+function Editor(props: {
+  editorMode: string
+  theme: Theme
+  value: string | undefined
+  onChange: (value: string) => void
+}) {
+  const editorOptions = {
+    showLineNumbers: false,
+    tabSize: 2,
+  }
+
+  return (
+    <AceEditor
+      style={{}}
+      mode={props.editorMode}
+      theme={props.theme.palette.type === 'dark' ? 'monokai' : 'dawn'}
+      name="UNIQUE_ID_OF_DIV"
+      width="100%"
+      height="200px"
+      showGutter={true}
+      value={props.value}
+      onChange={props.onChange}
+      setOptions={editorOptions}
+      editorProps={{ $blockScrolling: true }}
+    />
+  )
+}
+
+export default withTheme(Editor)

app/src/components/Sidebar/Publish/EditorModeSelect.tsx

@@ -0,0 +1,40 @@
+import * as React from 'react'
+import { FormControlLabel, Radio, RadioGroup } from '@material-ui/core'
+
+interface Props {
+  value: string
+  onChange: (event: React.ChangeEvent<{}>, value: string) => void
+}
+export function EditorModeSelect(props: Props) {
+  const labelStyle = { margin: '0 8px 0 8px' }
+  return (
+    <RadioGroup
+      style={{ display: 'inline-block', float: 'left' }}
+      value={props.value}
+      onChange={props.onChange}
+      row={true}
+    >
+      <FormControlLabel
+        value="text"
+        style={labelStyle}
+        control={<Radio color="primary" />}
+        label="raw"
+        labelPlacement="top"
+      />
+      <FormControlLabel
+        value="xml"
+        style={labelStyle}
+        control={<Radio color="primary" />}
+        label="xml"
+        labelPlacement="top"
+      />
+      <FormControlLabel
+        value="json"
+        style={labelStyle}
+        control={<Radio color="primary" />}
+        label="json"
+        labelPlacement="top"
+      />
+    </RadioGroup>
+  )
+}

app/src/components/Sidebar/Publish/Publish.tsx

@@ -1,42 +1,34 @@
-import 'react-ace'
-import 'brace/mode/json'
-import 'brace/mode/text'
-import 'brace/mode/xml'
-import 'brace/theme/monokai'
-
-import * as React from 'react'
 import * as q from '../../../../../backend/src/Model'
+import * as React from 'react'
+import ClearAdornment from '../../helper/ClearAdornment'
+import FormatAlignLeft from '@material-ui/icons/FormatAlignLeft'
+import History from '../HistoryDrawer'
+import Message from './Model/Message'
+import Navigation from '@material-ui/icons/Navigation'
+import { AppState } from '../../../reducers'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { globalActions, publishActions } from '../../../actions'
 
 import {
   Button,
   FormControlLabel,
-  Radio,
-  RadioGroup,
-  TextField,
   FormControl,
   InputLabel,
   Input,
   Checkbox,
-  MenuItem,
   Tooltip,
   Fab,
+  Theme,
+  withTheme,
 } from '@material-ui/core'
+import { EditorModeSelect } from './EditorModeSelect'
+import QosSelect from './QosSelect'
+import Editor from './Editor'
 
-// tslint:disable-next-line
-import { default as AceEditor } from 'react-ace'
-import { AppState } from '../../../reducers'
-import History from '../History'
-import Message from './Model/Message'
-import Navigation from '@material-ui/icons/Navigation'
-import FormatAlignLeft from '@material-ui/icons/FormatAlignLeft'
-import { bindActionCreators } from 'redux'
-import { connect } from 'react-redux'
-import { publishActions, globalActions } from '../../../actions'
-import ClearAdornment from '../../helper/ClearAdornment'
-import { TopicViewModel } from '../../../TopicViewModel'
+const sha1 = require('sha1')
 
 interface Props {
-  node?: q.TreeNode<TopicViewModel>
   connectionId?: string
   topic?: string
   payload?: string
@@ -44,11 +36,11 @@ interface Props {
   globalActions: typeof globalActions
   retain: boolean
   editorMode: string
-  qos: 0 | 1 | 2
+  theme: Theme
 }
 
 interface State {
-  history: Message[]
+  history: Array<Message>
 }
 
 class Publish extends React.Component<Props, State> {
@@ -57,7 +49,7 @@ class Publish extends React.Component<Props, State> {
     this.state = { history: [] }
   }
 
-  private updatePayload = (payload: string, event?: any) => {
+  private updatePayload = (payload: string) => {
     this.props.actions.setPayload(payload)
   }
 
@@ -84,24 +76,14 @@ class Publish extends React.Component<Props, State> {
     }
   }
 
-  private addMessageToHistory(topic: string, payload?: string) {
+  private addMessageToHistory(topic: string, payload?: string) {
     // Remove duplicates
     let filteredHistory = this.state.history.filter(e => e.payload !== payload || e.topic !== topic)
     filteredHistory = filteredHistory.slice(-7)
-    const history: Message[] = [...filteredHistory, { topic, payload, sent: new Date() }]
+    const history: Array<Message> = [...filteredHistory, { topic, payload, sent: new Date() }]
     this.setState({ history })
   }
 
-  public render() {
-    return (
-      <div style={{ flexGrow: 1, marginLeft: '8px' }}>
-        {this.topic()}
-        {this.editor()}
-        {this.history()}
-      </div>
-    )
-  }
-
   private clearTopic = () => {
     this.props.actions.setTopic('')
   }
@@ -112,18 +94,18 @@ class Publish extends React.Component<Props, State> {
     return (
       <div>
         <FormControl style={{ width: '100%' }}>
-            <InputLabel htmlFor="publish-topic">Topic</InputLabel>
-            <Input
-              id="publish-topic"
-              value={topicStr}
-              startAdornment={<span/>}
-              endAdornment={<ClearAdornment action={this.clearTopic} value={topicStr} />}
-              onBlur={this.onTopicBlur}
-              onChange={this.updateTopic}
-              multiline={true}
-              placeholder="example/topic"
-            />
-          </FormControl>
+          <InputLabel htmlFor="publish-topic">Topic</InputLabel>
+          <Input
+            id="publish-topic"
+            value={topicStr}
+            startAdornment={<span />}
+            endAdornment={<ClearAdornment action={this.clearTopic} value={topicStr} />}
+            onBlur={this.onTopicBlur}
+            onChange={this.updateTopic}
+            multiline={true}
+            placeholder="example/topic"
+          />
+        </FormControl>
       </div>
     )
   }
@@ -134,20 +116,9 @@ class Publish extends React.Component<Props, State> {
     }
   }
 
-  private editorOptions = {
-    showLineNumbers: false,
-    tabSize: 2,
-  }
-
   private publishButton() {
     return (
-      <Button
-        variant="contained"
-        size="small"
-        color="primary"
-        onClick={this.publish}
-        id="publish-button"
-      >
+      <Button variant="contained" size="small" color="primary" onClick={this.publish} id="publish-button">
         <Navigation style={{ marginRight: '8px' }} /> Publish
       </Button>
     )
@@ -171,7 +142,11 @@ class Publish extends React.Component<Props, State> {
 
     return (
       <Tooltip title="Format JSON">
-        <Fab style={{ width: '36px', height: '36px', marginLeft: '8px' }} onClick={this.formatJson} id="sidebar-publish-format-json">
+        <Fab
+          style={{ width: '36px', height: '36px', marginLeft: '8px' }}
+          onClick={this.formatJson}
+          id="sidebar-publish-format-json"
+        >
           <FormatAlignLeft style={{ fontSize: '20px' }} />
         </Fab>
       </Tooltip>
@@ -182,96 +157,31 @@ class Publish extends React.Component<Props, State> {
     return (
       <div style={{ marginTop: '16px' }}>
         <div style={{ width: '100%', lineHeight: '64px' }}>
-          {this.renderEditorModeSelection()}
+          <EditorModeSelect value={this.props.editorMode} onChange={this.updateMode} />
           {this.renderFormatJson()}
-          <div style={{ float: 'right', marginRight: '16px' }}>
-            {this.publishButton()}
-          </div>
+          <div style={{ float: 'right', marginRight: '16px' }}>{this.publishButton()}</div>
         </div>
       </div>
     )
   }
 
-  private renderEditorModeSelection() {
-    const labelStyle = { margin: '0 8px 0 8px' }
-    return (
-      <RadioGroup
-        style={{ display: 'inline-block', float: 'left' }}
-        value={this.props.editorMode}
-        onChange={this.updateMode}
-        row={true}
-      >
-        <FormControlLabel
-          value="text"
-          style={labelStyle}
-          control={<Radio color="primary" />}
-          label="raw"
-          labelPlacement="top"
-        />
-        <FormControlLabel
-          value="xml"
-          style={labelStyle}
-          control={<Radio color="primary" />}
-          label="xml"
-          labelPlacement="top"
-        />
-        <FormControlLabel
-          value="json"
-          style={labelStyle}
-          control={<Radio color="primary" />}
-          label="json"
-          labelPlacement="top"
-        />
-      </RadioGroup>
-    )
-  }
-
-  private onChangeQoS = (event: React.ChangeEvent<HTMLInputElement>) => {
-    const value = parseInt(event.target.value, 10)
-    if (value !== 0 && value !== 1 && value !== 2) {
-      return
-    }
-
-    this.props.actions.setQoS(value)
-  }
-
   private publishMode() {
     const labelStyle = { margin: '0 8px 0 8px' }
-    const itemStyle = { padding: '0' }
-    const tooltipStyle = { textAlign: 'center' as 'center', width: '100%' }
-    const qosSelect = (
-      <TextField
-        select={true}
-        value={this.props.qos}
-        margin="normal"
-        style={{ margin: '8px 0 8px 8px' }}
-        onChange={this.onChangeQoS}
-      >
-        <MenuItem key={0} value={0} style={itemStyle}>
-          <Tooltip title="At most once"><div style={tooltipStyle}>0</div></Tooltip>
-        </MenuItem>
-        <MenuItem key={1} value={1} style={itemStyle}>
-          <Tooltip title="At least once"><div style={tooltipStyle}>1</div></Tooltip>
-        </MenuItem>
-        <MenuItem key={2} value={2} style={itemStyle}>
-          <Tooltip title="Exactly once"><div style={tooltipStyle}>2</div></Tooltip>
-        </MenuItem>
-      </TextField>
-    )
+
     return (
       <div style={{ marginTop: '8px', clear: 'both' }}>
         <div style={{ width: '100%', textAlign: 'right' }}>
-          <FormControlLabel
-            style={labelStyle}
-            control={qosSelect}
-            label="QoS"
-            labelPlacement="start"
-          />
-          <Tooltip title="Retained messages only appear to be retained, when client subscribes after the initial publish." placement="top">
+          <FormControlLabel style={labelStyle} control={<QosSelect />} label="QoS" labelPlacement="start" />
+          <Tooltip
+            title="Retained messages only appear to be retained, when client subscribes after the initial publish."
+            placement="top"
+          >
             <FormControlLabel
               value="retain"
               style={labelStyle}
-              control={<Checkbox color="primary" checked={this.props.retain} onChange={this.props.actions.toggleRetain} />}
+              control={
+                <Checkbox color="primary" checked={this.props.retain} onChange={this.props.actions.toggleRetain} />
+              }
               label="retain"
               labelPlacement="end"
             />
@@ -283,10 +193,10 @@ class Publish extends React.Component<Props, State> {
 
   private history() {
     const items = this.state.history.reverse().map(message => ({
+      key: sha1(message.topic + message.payload),
       title: message.topic,
-      value: message.payload,
+      value: message.payload || '',
     }))
-
     return <History items={items} onClick={this.didSelectHistoryEntry} />
   }
 
@@ -296,32 +206,19 @@ class Publish extends React.Component<Props, State> {
     this.props.actions.setPayload(message.payload)
   }
 
-  private editor() {
+  public render() {
     return (
-      <div style={{ width: '100%', display: 'block' }}>
-        {this.editorMode()}
-        {this.renderEditor()}
-        {this.publishMode()}
+      <div style={{ flexGrow: 1, marginLeft: '8px' }}>
+        {this.topic()}
+        <div style={{ width: '100%', display: 'block' }}>
+          {this.editorMode()}
+          <Editor value={this.props.payload} editorMode={this.props.editorMode} onChange={this.updatePayload} />
+          {this.publishMode()}
+        </div>
+        {this.history()}
       </div>
     )
   }
-
-  private renderEditor() {
-    return (
-      <AceEditor
-        mode={this.props.editorMode}
-        theme="monokai"
-        name="UNIQUE_ID_OF_DIV"
-        width="100%"
-        height="200px"
-        showGutter={true}
-        value={this.props.payload}
-        onChange={this.updatePayload}
-        setOptions={this.editorOptions}
-        editorProps={{ $blockScrolling: true }}
-      />
-    )
-  }
 }
 
 const mapDispatchToProps = (dispatch: any) => {
@@ -337,8 +234,10 @@ const mapStateToProps = (state: AppState) => {
     payload: state.publish.payload,
     editorMode: state.publish.editorMode,
     retain: state.publish.retain,
-    qos: state.publish.qos,
   }
 }
 
-export default connect(mapStateToProps, mapDispatchToProps)(Publish)
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withTheme(Publish))

app/src/components/Sidebar/Publish/QosSelect.tsx

@@ -0,0 +1,75 @@
+import * as React from 'react'
+import { TextField, MenuItem, Tooltip } from '@material-ui/core'
+import { connect } from 'react-redux'
+import { AppState } from '../../../reducers'
+import { bindActionCreators } from 'redux'
+import { publishActions } from '../../../actions'
+
+interface Props {
+  qos: 0 | 1 | 2
+  actions: {
+    publish: typeof publishActions
+  }
+}
+
+function QosSelect(props: Props) {
+  const tooltipStyle = { textAlign: 'center' as 'center', width: '100%' }
+  const itemStyle = { padding: '0' }
+
+  const onChangeQos = React.useCallback(
+    (event: React.ChangeEvent<HTMLInputElement>) => {
+      const value = parseInt(event.target.value, 10)
+      if (value !== 0 && value !== 1 && value !== 2) {
+        return
+      }
+
+      props.actions.publish.setQoS(value)
+    },
+    [props.actions.publish]
+  )
+
+  return (
+    <TextField
+      select={true}
+      value={props.qos}
+      margin="normal"
+      style={{ margin: '8px 0 8px 8px' }}
+      onChange={onChangeQos}
+    >
+      <MenuItem key={0} value={0} style={itemStyle}>
+        <Tooltip title="At most once">
+          <div style={tooltipStyle}>0</div>
+        </Tooltip>
+      </MenuItem>
+      <MenuItem key={1} value={1} style={itemStyle}>
+        <Tooltip title="At least once">
+          <div style={tooltipStyle}>1</div>
+        </Tooltip>
+      </MenuItem>
+      <MenuItem key={2} value={2} style={itemStyle}>
+        <Tooltip title="Exactly once">
+          <div style={tooltipStyle}>2</div>
+        </Tooltip>
+      </MenuItem>
+    </TextField>
+  )
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      publish: bindActionCreators(publishActions, dispatch),
+    },
+  }
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    qos: state.publish.qos,
+  }
+}
+
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(QosSelect)

app/src/components/Sidebar/Sidebar.tsx

@@ -1,80 +1,47 @@
 import * as q from '../../../../backend/src/Model'
 import * as React from 'react'
-import Clear from '@material-ui/icons/Clear'
-import Code from '@material-ui/icons/Code'
-import Copy from '../Copy'
-import CustomIconButton from '../CustomIconButton'
-import DateFormatter from '../helper/DateFormatter'
+import Copy from '../helper/Copy'
+import CustomIconButton from '../helper/CustomIconButton'
 import Delete from '@material-ui/icons/Delete'
 import ExpandMore from '@material-ui/icons/ExpandMore'
-import MessageHistory from './MessageHistory'
 import NodeStats from './NodeStats'
-import Reorder from '@material-ui/icons/Reorder'
-import ToggleButton from '@material-ui/lab/ToggleButton'
-import ToggleButtonGroup from '@material-ui/lab/ToggleButtonGroup'
 import Topic from './Topic'
+import ValuePanel from './ValueRenderer/ValuePanel'
 import { AppState } from '../../reducers'
+import { Badge, ExpansionPanel, ExpansionPanelDetails, ExpansionPanelSummary, Typography } from '@material-ui/core'
 import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
-import { settingsActions, sidebarActons } from '../../actions'
-import { StyleRulesCallback, Theme, withStyles } from '@material-ui/core/styles'
-import { TopicViewModel } from '../../TopicViewModel'
-import { ValueRendererDisplayMode } from '../../reducers/Settings'
-
-import {
-  Button,
-  ExpansionPanel,
-  ExpansionPanelDetails,
-  ExpansionPanelSummary,
-  Typography,
-  Tooltip,
-  Badge,
-} from '@material-ui/core'
+import { settingsActions, sidebarActions } from '../../actions'
+import { Theme, withStyles } from '@material-ui/core/styles'
+import { TopicViewModel } from '../../model/TopicViewModel'
 
 const throttle = require('lodash.throttle')
 
 const Publish = React.lazy(() => import('./Publish/Publish'))
-const ValueRenderer = React.lazy(() => import('./ValueRenderer'))
 
 interface Props {
   node?: q.TreeNode<TopicViewModel>
-  actions: typeof sidebarActons
+  actions: typeof sidebarActions
   settingsActions: typeof settingsActions
-  valueRendererDisplayMode: ValueRendererDisplayMode
   classes: any
   connectionId?: string
 }
 
 interface State {
-  node: q.TreeNode<TopicViewModel>
   compareMessage?: q.Message
   valueRenderWidth: number
 }
 
 class Sidebar extends React.Component<Props, State> {
-  private valueRef: any = React.createRef<HTMLDivElement>()
   private updateNode = throttle(() => {
     this.setState(this.state)
   }, 300)
 
+  private detailsStyle = { padding: '0px 16px 8px 8px', display: 'block' }
+
   constructor(props: any) {
     super(props)
-    console.error('Find and fix me #state')
-    this.state = { node: new q.Tree(), valueRenderWidth: 300 }
-  }
-
-  public componentWillReceiveProps(nextProps: Props) {
-    this.props.node && this.removeUpdateListener(this.props.node)
-    nextProps.node && this.registerUpdateListener(nextProps.node)
-    this.props.node && this.setState({ node: this.props.node })
-
-    if (this.props.node !== nextProps.node) {
-      this.setState({ compareMessage: undefined })
-    }
-  }
-
-  public componentWillUnmount() {
-    this.props.node && this.removeUpdateListener(this.props.node)
+    this.state = { valueRenderWidth: 300 }
   }
 
   private registerUpdateListener(node: q.TreeNode<TopicViewModel>) {
@@ -87,26 +54,14 @@ class Sidebar extends React.Component<Props, State> {
     node.onMessage.unsubscribe(this.updateNode)
   }
 
-  public render() {
-    return (
-      <div id="Sidebar" className={this.props.classes.drawer}>
-        {this.renderNode()}
-      </div>
-    )
-  }
-
-  private detailsStyle = { padding: '0px 16px 8px 8px', display: 'block' }
-
   private renderTopicDeleteButton() {
-    if (!this.props.node || (!this.props.node.message || !this.props.node.message.value)) {
+    if (!this.props.node || (!this.props.node.message || !this.props.node.message.value)) {
       return null
     }
 
     return (
-      <CustomIconButton onClick={() => this.deleteTopic(this.props.node)}>
-        <Tooltip title="Clear this topic">
-          <Delete />
-        </Tooltip>
+      <CustomIconButton onClick={() => this.deleteTopic(this.props.node)} tooltip="Clear this topic">
+        <Delete style={{ marginTop: '-3px' }} />
       </CustomIconButton>
     )
   }
@@ -114,22 +69,23 @@ class Sidebar extends React.Component<Props, State> {
   private renderRecursiveTopicDeleteButton() {
     const deleteLimit = 50
     const topicCount = this.props.node ? this.props.node.childTopicCount() : 0
-    if ((!this.props.node || topicCount === 0) || (this.props.node.message && topicCount === 1)) {
+    if (!this.props.node || topicCount === 0 || (this.props.node.message && topicCount === 1)) {
       return null
     }
 
     return (
-      <CustomIconButton onClick={() => this.deleteTopic(this.props.node, true, deleteLimit)}>
-        <Tooltip title={`Deletes up to ${deleteLimit} sub-topics with a single click`}>
-          <Badge
-            classes={{ badge: this.props.classes.badge }}
-            badgeContent={<span style={{ whiteSpace: 'nowrap' }}>{topicCount >= deleteLimit ? '50+' : topicCount}</span>}
-            color="secondary"
-          >
-            <Delete color="action" />
-          </Badge>
-        </Tooltip>
-      </CustomIconButton>
+      <Badge
+        classes={{ badge: this.props.classes.badge }}
+        badgeContent={<span style={{ whiteSpace: 'nowrap' }}>{topicCount >= deleteLimit ? '50+' : topicCount}</span>}
+        color="secondary"
+      >
+        <CustomIconButton
+          onClick={() => this.deleteTopic(this.props.node, true, deleteLimit)}
+          tooltip={`Deletes up to ${deleteLimit} sub-topics with a single click`}
+        >
+          <Delete style={{ marginTop: '-3px' }} color="action" />
+        </CustomIconButton>
+      </Badge>
     )
   }
 
@@ -141,66 +97,33 @@ class Sidebar extends React.Component<Props, State> {
     this.props.actions.clearTopic(topic, recursive, maxCount)
   }
 
-  private renderActionButtons() {
-    const handleValue = (_e: React.MouseEvent, value: any) => {
-      this.props.settingsActions.setValueDisplayMode(value)
-    }
-
-    return (
-      <ToggleButtonGroup id="valueRendererDisplayMode" value={this.props.valueRendererDisplayMode} exclusive={true} onChange={handleValue}>
-        <ToggleButton value="diff" id="valueRendererDisplayMode-diff">
-          <Tooltip title="Show difference between the current and the last message">
-            <Code />
-          </Tooltip>
-        </ToggleButton>
-        <ToggleButton value="raw" id="valueRendererDisplayMode-raw">
-          <Tooltip title="Raw value">
-            <Reorder />
-          </Tooltip>
-        </ToggleButton>
-      </ToggleButtonGroup>
-    )
-  }
-
   private renderNode() {
     const { classes, node } = this.props
 
     const copyTopic = node ? <Copy value={node.path()} /> : null
     const deleteTopic = this.renderTopicDeleteButton()
     const deleteRecursiveTopic = this.renderRecursiveTopicDeleteButton()
-    const copyValue = node && node.message ? <Copy value={node.message.value} /> : null
     const summaryStyle = { minHeight: '0' }
     return (
       <div>
         <ExpansionPanel key="topic" defaultExpanded={true} disabled={!Boolean(this.props.node)}>
           <ExpansionPanelSummary expandIcon={<ExpandMore />} style={summaryStyle}>
-            <Typography className={classes.heading}>Topic {copyTopic} {deleteTopic} {deleteRecursiveTopic}</Typography>
+            <Typography className={classes.heading}>
+              Topic {copyTopic} {deleteTopic} {deleteRecursiveTopic}
+            </Typography>
           </ExpansionPanelSummary>
           <ExpansionPanelDetails style={this.detailsStyle}>
             <Topic node={this.props.node} didSelectNode={this.updateNode} />
           </ExpansionPanelDetails>
         </ExpansionPanel>
-        <ExpansionPanel key="value" defaultExpanded={true}>
-          <ExpansionPanelSummary expandIcon={<ExpandMore />} style={summaryStyle}>
-            <Typography className={classes.heading}>Value {copyValue}</Typography>
-          </ExpansionPanelSummary>
-          <ExpansionPanelDetails style={this.detailsStyle}>
-            {this.messageMetaInfo()}
-            <div ref={this.valueRef}>
-              <React.Suspense fallback={<div>Loading...</div>}>
-                {this.renderValue()}
-              </React.Suspense>
-            </div>
-            <div><MessageHistory onSelect={this.handleMessageHistorySelect} selected={this.state.compareMessage} node={this.props.node} /></div>
-          </ExpansionPanelDetails>
-        </ExpansionPanel>
+        <ValuePanel lastUpdate={this.props.node ? this.props.node.lastUpdate : 0} />
         <ExpansionPanel defaultExpanded={true}>
           <ExpansionPanelSummary expandIcon={<ExpandMore />} style={summaryStyle}>
             <Typography className={classes.heading}>Publish</Typography>
           </ExpansionPanelSummary>
           <ExpansionPanelDetails style={this.detailsStyle}>
             <React.Suspense fallback={<div>Loading...</div>}>
-              <Publish node={this.props.node} connectionId={this.props.connectionId} />
+              <Publish connectionId={this.props.connectionId} />
             </React.Suspense>
           </ExpansionPanelDetails>
         </ExpansionPanel>
@@ -214,59 +137,6 @@ class Sidebar extends React.Component<Props, State> {
     )
   }
 
-  private renderValue() {
-    const node = this.props.node
-    if (!node || !node.message) {
-      return null
-    }
-
-    return (
-      <ValueRenderer
-        message={node.message}
-        messageHistory={node.messageHistory}
-        compareWith={this.state.compareMessage} />
-    )
-  }
-
-  private messageMetaInfo() {
-    if (!this.props.node || !this.props.node.message || !this.props.node.mqttMessage) {
-      return null
-    }
-
-    const retainedButton = (
-      <Tooltip title="Delete retained topic" placement="top">
-        <Button
-          size="small"
-          color="secondary"
-          variant="contained"
-          style={{ marginTop: '-3px', padding: '0px 4px', minHeight: '24px' }}
-          onClick={this.props.actions.clearRetainedTopic}
-        >
-          retained <Clear style={{ fontSize: '16px', marginLeft: '2px' }} />
-        </Button>
-      </Tooltip>
-    )
-
-    return (
-      <div style={{ width: '100%', display: 'flex', paddingLeft: '8px' }}>
-        <div style={{ flex: 6 }}><Typography>QoS: {this.props.node.mqttMessage.qos}</Typography></div>
-        <span style={{ marginTop: '-8px' }}>{this.renderActionButtons()}</span>
-        <div style={{ flex: 8, textAlign: 'center' }}>
-          {this.props.node.mqttMessage.retain ? retainedButton : null}
-        </div>
-        <div style={{ flex: 8, textAlign: 'right' }}><Typography><i><DateFormatter date={this.props.node.message.received} /></i></Typography></div>
-      </div>
-    )
-  }
-
-  private handleMessageHistorySelect = (message: q.Message) => {
-    if (message !== this.state.compareMessage) {
-      this.setState({ compareMessage: message })
-    } else {
-      this.setState({ compareMessage: undefined })
-    }
-  }
-
   private renderNodeStats() {
     if (!this.props.node) {
       return null
@@ -278,36 +148,62 @@ class Sidebar extends React.Component<Props, State> {
       </ExpansionPanelDetails>
     )
   }
+
+  public componentWillReceiveProps(nextProps: Props) {
+    this.props.node && this.removeUpdateListener(this.props.node)
+    nextProps.node && this.registerUpdateListener(nextProps.node)
+
+    if (this.props.node !== nextProps.node) {
+      this.setState({ compareMessage: undefined })
+    }
+  }
+
+  public componentWillUnmount() {
+    this.props.node && this.removeUpdateListener(this.props.node)
+  }
+
+  public render() {
+    return (
+      <div id="Sidebar" className={this.props.classes.drawer}>
+        {this.renderNode()}
+      </div>
+    )
+  }
 }
 
 const mapStateToProps = (state: AppState) => {
   return {
-    node: state.tree.selectedTopic,
-    valueRendererDisplayMode: state.settings.valueRendererDisplayMode,
+    node: state.tree.get('selectedTopic'),
   }
 }
 
 const mapDispatchToProps = (dispatch: any) => {
   return {
-    actions: bindActionCreators(sidebarActons, dispatch),
+    actions: bindActionCreators(sidebarActions, dispatch),
     settingsActions: bindActionCreators(settingsActions, dispatch),
   }
 }
 
-const styles: StyleRulesCallback<string> = (theme: Theme) => {
-  return {
-    drawer: {
-      display: 'block',
-      height: '100%',
-    },
-    valuePaper: {
-      margin: theme.spacing(1),
-    },
-    heading: {
-      fontSize: theme.typography.pxToRem(15),
-      fontWeight: theme.typography.fontWeightRegular,
-    },
-  }
-}
+const styles = (theme: Theme) => ({
+  drawer: {
+    display: 'block' as 'block',
+  },
+  badge: {
+    top: '3px',
+    right: '3px',
+  },
+  valuePaper: {
+    margin: theme.spacing(1),
+  },
+  heading: {
+    fontSize: theme.typography.pxToRem(15),
+    fontWeight: theme.typography.fontWeightRegular,
+  },
+})
 
-export default withStyles(styles)(connect(mapStateToProps, mapDispatchToProps)(Sidebar))
+export default withStyles(styles)(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps
+  )(Sidebar)
+)

app/src/components/Sidebar/Topic.tsx

@@ -1,11 +1,11 @@
 import * as React from 'react'
 import * as q from '../../../../backend/src/Model'
 import Button from '@material-ui/core/Button'
-import { withStyles, Theme, StyleRulesCallback } from '@material-ui/core/styles'
+import { withStyles, Theme } from '@material-ui/core/styles'
 import { treeActions } from '../../actions'
 import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
-import { TopicViewModel } from '../../TopicViewModel'
+import { TopicViewModel } from '../../model/TopicViewModel'
 
 interface Props {
   classes: any
@@ -16,9 +16,9 @@ interface Props {
   didSelectNode: (node: q.TreeNode<TopicViewModel>) => void
 }
 
-const styles: StyleRulesCallback<string> = (theme: Theme) => ({
+const styles = (theme: Theme) => ({
   button: {
-    textTransform: 'none',
+    textTransform: 'none' as 'none',
     padding: '3px 5px 3px 5px',
     minWidth: '30px',
   },
@@ -26,35 +26,35 @@ const styles: StyleRulesCallback<string> = (theme: Theme) => ({
 
 class Topic extends React.Component<Props, {}> {
   public render() {
-    const { node } = this.props
+    const { node, theme } = this.props
     if (!node) {
       return null
     }
 
     let key = 0
-    const breadCrumps = node.branch()
+    const breadCrumps = node
+      .branch()
       .map(node => node.sourceEdge)
       .filter(edge => Boolean(edge))
-      .map(edge =>
-        [(
-          <Button
-            onClick={() => this.props.actions.selectTopic(edge!.target)}
-            size="small"
-            color="secondary"
-            className={this.props.classes.button}
-            key={edge!.hash()}
-          >
-            {edge!.name}
-          </Button>
-        )],
-      )
+      .map(edge => [
+        <Button
+          onClick={() => this.props.actions.selectTopic(edge!.target)}
+          size="small"
+          variant={theme.palette.type === 'light' ? 'contained' : undefined}
+          color={theme.palette.type === 'light' ? 'primary' : 'secondary'}
+          className={this.props.classes.button}
+          key={edge!.hash()}
+        >
+          {edge!.name || <span dangerouslySetInnerHTML={{ __html: '&nbsp;' }} />}
+        </Button>,
+      ])
 
     if (breadCrumps.length === 0) {
       return null
     }
 
     const joinedBreadCrumps = breadCrumps.reduce((prev, current) =>
-      prev.concat([<span key={key += 1}>/</span>]).concat(current),
+      prev.concat([<span key={(key += 1)}> / </span>]).concat(current)
     )
 
     return <span style={{ lineHeight: '2.2em' }}>{joinedBreadCrumps}</span>
@@ -67,4 +67,7 @@ const mapDispatchToProps = (dispatch: any) => {
   }
 }
 
-export default connect(null, mapDispatchToProps)(withStyles(styles, { withTheme: true })(Topic))
+export default connect(
+  null,
+  mapDispatchToProps
+)(withStyles(styles, { withTheme: true })(Topic))

app/src/components/Sidebar/ValueRenderer/MessageHistory.tsx

@@ -0,0 +1,144 @@
+import * as q from '../../../../../backend/src/Model'
+import * as React from 'react'
+import ShowChart from '@material-ui/icons/ShowChart'
+import Copy from '../../helper/Copy'
+import DateFormatter from '../../helper/DateFormatter'
+import History from '../HistoryDrawer'
+import TopicPlot from '../../TopicPlot'
+import { Base64Message } from '../../../../../backend/src/Model/Base64Message'
+import { isPlottable } from '../CodeDiff/util'
+import { TopicViewModel } from '../../../model/TopicViewModel'
+import { bindActionCreators } from 'redux'
+import { chartActions } from '../../../actions'
+import { connect } from 'react-redux'
+import CustomIconButton from '../../helper/CustomIconButton'
+
+const throttle = require('lodash.throttle')
+
+interface Props {
+  node?: q.TreeNode<TopicViewModel>
+  selected?: q.Message
+  onSelect: (message: q.Message) => void
+  actions: {
+    charts: typeof chartActions
+  }
+}
+
+interface State {
+  displayMessage?: q.Message
+  anchorEl?: HTMLElement
+}
+
+class MessageHistory extends React.Component<Props, State> {
+  private updateNode = throttle(() => {
+    this.setState(this.state)
+  }, 300)
+
+  constructor(props: any) {
+    super(props)
+    this.state = {}
+  }
+
+  private addNodeToCharts = (event: React.MouseEvent) => {
+    event.preventDefault()
+    event.stopPropagation()
+
+    const { node } = this.props
+    if (!node) {
+      return null
+    }
+
+    this.props.actions.charts.addChart({ topic: node.path() })
+  }
+
+  private displayMessage = (index: number, eventTarget: EventTarget) => {
+    const message = this.props.node && this.props.node.messageHistory.toArray().reverse()[index]
+    if (message) {
+      this.props.onSelect(message)
+    }
+  }
+
+  public componentWillReceiveProps(nextProps: Props) {
+    this.props.node && this.props.node.onMessage.unsubscribe(this.updateNode)
+    nextProps.node && nextProps.node.onMessage.subscribe(this.updateNode)
+  }
+
+  public componentDidMount() {
+    this.props.node && this.props.node.onMessage.subscribe(this.updateNode)
+  }
+
+  public componentWillUnMount() {
+    this.props.node && this.props.node.onMessage.unsubscribe(this.updateNode)
+  }
+
+  public render() {
+    const { node } = this.props
+    if (!node) {
+      return null
+    }
+
+    const history = node.messageHistory.toArray()
+    let previousMessage: q.Message | undefined = node.message
+    const historyElements = history.reverse().map((message, idx) => {
+      const value = message.value ? Base64Message.toUnicodeString(message.value) : ''
+      const element = {
+        value,
+        key: `${message.messageNumber}-${message.received}`,
+        title: (
+          <span>
+            <DateFormatter date={message.received} />
+            {previousMessage && previousMessage !== message ? (
+              <i>
+                (-
+                <DateFormatter date={message.received} intervalSince={previousMessage.received} />)
+              </i>
+            ) : null}
+            <div style={{ float: 'right' }}>
+              <Copy value={value} />
+            </div>
+          </span>
+        ),
+        selected: message && message === this.props.selected,
+      }
+      previousMessage = message
+      return element
+    })
+
+    const isMessagePlottable =
+      node.message && node.message.value && isPlottable(Base64Message.toUnicodeString(node.message.value))
+    return (
+      <div>
+        <History
+          items={historyElements}
+          contentTypeIndicator={
+            isMessagePlottable ? (
+              <CustomIconButton
+                style={{ height: '22px', width: '22px' }}
+                onClick={this.addNodeToCharts}
+                tooltip="Add to chart panel"
+              >
+                <ShowChart style={{ marginTop: '-5px' }} />
+              </CustomIconButton>
+            ) : (
+              undefined
+            )
+          }
+          onClick={this.displayMessage}
+        >
+          {isMessagePlottable ? <TopicPlot history={node.messageHistory} /> : null}
+        </History>
+      </div>
+    )
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: { charts: bindActionCreators(chartActions, dispatch) },
+  }
+}
+
+export default connect(
+  null,
+  mapDispatchToProps
+)(MessageHistory)

app/src/components/Sidebar/ValueRenderer/ValuePanel.tsx

@@ -0,0 +1,215 @@
+import * as q from '../../../../../backend/src/Model'
+import * as React from 'react'
+import Clear from '@material-ui/icons/Clear'
+import Code from '@material-ui/icons/Code'
+import Copy from '../../helper/Copy'
+import DateFormatter from '../../helper/DateFormatter'
+import ExpandMore from '@material-ui/icons/ExpandMore'
+import MessageHistory from './MessageHistory'
+import Reorder from '@material-ui/icons/Reorder'
+import ToggleButton from '@material-ui/lab/ToggleButton'
+import ToggleButtonGroup from '@material-ui/lab/ToggleButtonGroup'
+import ValueRenderer from './ValueRenderer'
+import { AppState } from '../../../reducers'
+import { Base64Message } from '../../../../../backend/src/Model/Base64Message'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { settingsActions, sidebarActions } from '../../../actions'
+import { ValueRendererDisplayMode } from '../../../reducers/Settings'
+
+import {
+  Button,
+  ExpansionPanel,
+  ExpansionPanelDetails,
+  ExpansionPanelSummary,
+  Tooltip,
+  Typography,
+  StyleRulesCallback,
+  withStyles,
+  Theme,
+} from '@material-ui/core'
+
+interface Props {
+  node?: q.TreeNode<any>
+  valueRendererDisplayMode: ValueRendererDisplayMode
+  sidebarActions: typeof sidebarActions
+  settingsActions: typeof settingsActions
+  classes: any
+  lastUpdate: number
+  compareMessage?: q.Message
+}
+
+interface State {}
+
+class ValuePanel extends React.Component<Props, State> {
+  constructor(props: Props) {
+    super(props)
+    this.state = {}
+  }
+
+  private renderValue() {
+    const node = this.props.node
+    if (!node || !node.message) {
+      return null
+    }
+
+    return <ValueRenderer treeNode={node} message={node.message} compareWith={this.props.compareMessage} />
+  }
+
+  private renderViewOptions() {
+    if (!this.props.node || !this.props.node.message || !this.props.node.mqttMessage) {
+      return null
+    }
+
+    const retainedButton = (
+      <Tooltip title="Delete retained topic" placement="top">
+        <Button
+          size="small"
+          color="secondary"
+          variant="contained"
+          style={{ marginTop: '11px', padding: '0px 4px', minHeight: '24px' }}
+          onClick={this.props.sidebarActions.clearRetainedTopic}
+        >
+          retained <Clear style={{ fontSize: '16px', marginLeft: '2px' }} />
+        </Button>
+      </Tooltip>
+    )
+
+    return (
+      <div style={{ width: '100%', display: 'flex', paddingLeft: '8px' }}>
+        <span style={{ marginTop: '2px', flexGrow: 1 }}>{this.renderActionButtons()}</span>
+        <div style={{ flex: 6, textAlign: 'right' }}>{this.props.node.mqttMessage.retain ? retainedButton : null}</div>
+        {this.messageMetaInfo()}
+      </div>
+    )
+  }
+
+  private messageMetaInfo() {
+    if (!this.props.node || !this.props.node.message || !this.props.node.mqttMessage) {
+      return null
+    }
+
+    return (
+      <span style={{ width: '100%', paddingLeft: '8px', flex: 6 }}>
+        <Typography style={{ textAlign: 'right' }}>QoS: {this.props.node.mqttMessage.qos}</Typography>
+        <Typography style={{ textAlign: 'right' }}>
+          <i>
+            <DateFormatter date={this.props.node.message.received} />
+          </i>
+        </Typography>
+      </span>
+    )
+  }
+
+  private renderActionButtons() {
+    const handleValue = (mouseEvent: React.MouseEvent, value: any) => {
+      if (value === null) {
+        return
+      }
+      this.props.settingsActions.setValueDisplayMode(value)
+    }
+
+    return (
+      <ToggleButtonGroup
+        id="valueRendererDisplayMode"
+        value={this.props.valueRendererDisplayMode}
+        exclusive={true}
+        onChange={handleValue}
+      >
+        <ToggleButton className={this.props.classes.toggleButton} value="diff" id="valueRendererDisplayMode-diff">
+          <Tooltip title="Show difference between the current and the last message">
+            <span>
+              <Code className={this.props.classes.toggleButtonIcon} />
+            </span>
+          </Tooltip>
+        </ToggleButton>
+        <ToggleButton className={this.props.classes.toggleButton} value="raw" id="valueRendererDisplayMode-raw">
+          <Tooltip title="Raw value">
+            <span>
+              <Reorder className={this.props.classes.toggleButtonIcon} />
+            </span>
+          </Tooltip>
+        </ToggleButton>
+      </ToggleButtonGroup>
+    )
+  }
+
+  private panelStyle() {
+    return {
+      detailsStyle: { padding: '0px 16px 8px 8px', display: 'block' },
+      summaryStyle: { minHeight: '0' },
+    }
+  }
+
+  private handleMessageHistorySelect = (message: q.Message) => {
+    if (message !== this.props.compareMessage) {
+      this.props.sidebarActions.setCompareMessage(message)
+    } else {
+      this.props.sidebarActions.setCompareMessage(undefined)
+    }
+  }
+
+  public render() {
+    const { node, classes } = this.props
+    const { detailsStyle, summaryStyle } = this.panelStyle()
+
+    const copyValue =
+      node && node.message && node.message.value ? (
+        <Copy value={Base64Message.toUnicodeString(node.message.value)} />
+      ) : null
+
+    return (
+      <ExpansionPanel key="value" defaultExpanded={true}>
+        <ExpansionPanelSummary expandIcon={<ExpandMore />} style={summaryStyle}>
+          <Typography className={classes.heading}>Value {copyValue}</Typography>
+        </ExpansionPanelSummary>
+        <ExpansionPanelDetails style={detailsStyle}>
+          {this.renderViewOptions()}
+          <div>
+            <React.Suspense fallback={<div>Loading...</div>}>{this.renderValue()}</React.Suspense>
+          </div>
+          <div>
+            <MessageHistory
+              onSelect={this.handleMessageHistorySelect}
+              selected={this.props.compareMessage}
+              node={this.props.node}
+            />
+          </div>
+        </ExpansionPanelDetails>
+      </ExpansionPanel>
+    )
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    sidebarActions: bindActionCreators(sidebarActions, dispatch),
+    settingsActions: bindActionCreators(settingsActions, dispatch),
+  }
+}
+
+const mapStateToProps = (state: AppState) => {
+  return {
+    valueRendererDisplayMode: state.settings.get('valueRendererDisplayMode'),
+    node: state.tree.get('selectedTopic'),
+    compareMessage: state.sidebar.get('compareMessage'),
+  }
+}
+
+const styles = (theme: Theme) => ({
+  heading: {
+    fontSize: theme.typography.pxToRem(15),
+    fontWeight: theme.typography.fontWeightRegular,
+  },
+  toggleButton: {
+    height: '36px',
+  },
+  toggleButtonIcon: {
+    verticalAlign: 'middle',
+  },
+})
+
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(withStyles(styles)(ValuePanel))

app/src/components/Sidebar/ValueRenderer/ValueRenderer.tsx

@@ -1,14 +1,15 @@
-import * as q from '../../../../backend/src/Model'
+import * as q from '../../../../../backend/src/Model'
 import * as React from 'react'
 import CodeDiff from '../CodeDiff'
-import { AppState } from '../../reducers'
+import { AppState } from '../../../reducers'
+import { Base64Message } from '../../../../../backend/src/Model/Base64Message'
 import { connect } from 'react-redux'
 import { default as ReactResizeDetector } from 'react-resize-detector'
-import { ValueRendererDisplayMode } from '../../reducers/Settings'
+import { ValueRendererDisplayMode } from '../../../reducers/Settings'
 
 interface Props {
   message: q.Message
-  messageHistory: q.RingBuffer<q.Message>
+  treeNode: q.TreeNode<any>
   compareWith?: q.Message
   renderMode: ValueRendererDisplayMode
 }
@@ -23,50 +24,10 @@ class ValueRenderer extends React.Component<Props, State> {
     this.state = { width: 0 }
   }
 
-  public render() {
-    return (
-      <div style={{ padding: '8px 0px 8px 8px' }}>
-        <ReactResizeDetector handleWidth={true} onResize={this.updateWidth} />
-        {this.renderValue()}
-      </div>
-    )
-  }
-
-  public renderValue() {
-    const { message, messageHistory, compareWith, renderMode } = this.props
-
-    const previousMessages = messageHistory.toArray()
-    const previousMessage = previousMessages[previousMessages.length - 2]
-    let compareMessage = compareWith || previousMessage || message
-    if (renderMode === 'raw') {
-      compareMessage = message
-    }
-
-    let json
-    try {
-      json = JSON.parse(message.value)
-    } catch (error) {
-      return this.renderRawValue(message.value, compareMessage.value)
-    }
-
-    if (typeof json === 'string') {
-      return this.renderRawValue(message.value, compareMessage.value)
-    } else if (typeof json === 'number') {
-      return this.renderRawValue(message.value, compareMessage.value)
-    } else if (typeof json === 'boolean') {
-      return this.renderRawValue(message.value, compareMessage.value)
-    } else {
-      const current = this.messageToPrettyJson(message) || message.value
-      const compare = this.messageToPrettyJson(compareMessage) || compareMessage.value
-      const language = current && compare ? 'json' : undefined
-
-      return this.renderDiff(current, compare, language)
-    }
-  }
-
   private renderDiff(current: string = '', previous: string = '', language?: 'json') {
     return (
       <CodeDiff
+        treeNode={this.props.treeNode}
         previous={previous}
         current={current}
         language={language}
@@ -75,13 +36,9 @@ class ValueRenderer extends React.Component<Props, State> {
     )
   }
 
-  private messageToPrettyJson(message?: q.Message): string | undefined {
-    if (!message || !message.value) {
-      return undefined
-    }
-
+  private messageToPrettyJson(str: string): string | undefined {
     try {
-      const json = JSON.parse(message.value)
+      const json = JSON.parse(str)
       return JSON.stringify(json, undefined, '  ')
     } catch {
       return undefined
@@ -97,11 +54,58 @@ class ValueRenderer extends React.Component<Props, State> {
   private renderRawValue(value: string, compare: string) {
     return this.renderDiff(value, compare)
   }
+
+  public render() {
+    return (
+      <div style={{ padding: '0px 0px 8px 8px' }}>
+        <ReactResizeDetector handleWidth={true} onResize={this.updateWidth} />
+        {this.renderValue()}
+      </div>
+    )
+  }
+
+  public renderValue() {
+    const { message, treeNode, compareWith, renderMode } = this.props
+    const previousMessages = treeNode.messageHistory.toArray()
+    const previousMessage = previousMessages[previousMessages.length - 2]
+    let compareMessage = compareWith || previousMessage || message
+    if (renderMode === 'raw') {
+      compareMessage = message
+    }
+    if (!message.value) {
+      return null
+    }
+
+    const compareValue = compareMessage.value || message.value
+    const str = Base64Message.toUnicodeString(message.value)
+    const compareStr = Base64Message.toUnicodeString(compareValue)
+
+    let json
+    try {
+      json = JSON.parse(str)
+    } catch (error) {
+      return this.renderRawValue(str, compareStr)
+    }
+
+    if (typeof json === 'string') {
+      return this.renderRawValue(str, compareStr)
+    } else if (typeof json === 'number') {
+      return this.renderRawValue(str, compareStr)
+    } else if (typeof json === 'boolean') {
+      return this.renderRawValue(str, compareStr)
+    } else {
+      const current = this.messageToPrettyJson(str) || str
+      const compare = this.messageToPrettyJson(compareStr) || compareStr
+      const language = current && compare ? 'json' : undefined
+
+      return this.renderDiff(current, compare, language)
+    }
+  }
 }
 
 const mapStateToProps = (state: AppState) => {
   return {
-    renderMode: state.settings.valueRendererDisplayMode,
+    renderMode: state.settings.get('valueRendererDisplayMode'),
   }
 }
 

app/src/components/TitleBar.tsx

@@ -1,152 +0,0 @@
-import * as React from 'react'
-import ClearAdornment from './helper/ClearAdornment'
-import CloudOff from '@material-ui/icons/CloudOff'
-import ConnectionHealthIndicator from './ConnectionHealthIndicator'
-import Menu from '@material-ui/icons/Menu'
-import Search from '@material-ui/icons/Search'
-import { AppState } from '../reducers'
-import { bindActionCreators } from 'redux'
-import { connect } from 'react-redux'
-import { connectionActions, settingsActions } from '../actions'
-import { fade } from '@material-ui/core/styles/colorManipulator'
-import { StyleRulesCallback, withStyles } from '@material-ui/core/styles'
-import {
-  AppBar,
-  Button,
-  IconButton,
-  InputBase,
-  Toolbar,
-  Typography,
-} from '@material-ui/core'
-
-const styles: StyleRulesCallback = theme => ({
-  title: {
-    display: 'none',
-    [theme.breakpoints.up('sm')]: {
-      display: 'block',
-    },
-  },
-  search: {
-    position: 'relative',
-    borderRadius: theme.shape.borderRadius,
-    backgroundColor: fade(theme.palette.common.white, 0.15),
-    '&:hover': {
-      backgroundColor: fade(theme.palette.common.white, 0.25),
-    },
-    marginRight: theme.spacing(2),
-    marginLeft: 0,
-    width: '100%',
-    [theme.breakpoints.up('sm')]: {
-      marginLeft: theme.spacing(3),
-      width: 'auto',
-    },
-  },
-  searchIcon: {
-    width: theme.spacing(8),
-    height: '100%',
-    position: 'absolute',
-    pointerEvents: 'none',
-    display: 'flex',
-    alignItems: 'center',
-    justifyContent: 'center',
-  },
-  inputRoot: {
-    color: 'inherit',
-    width: '100%',
-  },
-  inputInput: {
-    paddingTop: theme.spacing(1),
-    paddingRight: theme.spacing(1),
-    paddingBottom: theme.spacing(1),
-    paddingLeft: theme.spacing(10),
-    transition: theme.transitions.create('width'),
-    width: '100%',
-    [theme.breakpoints.up('md')]: {
-      width: 200,
-    },
-  },
-  menuButton: {
-    marginLeft: -12,
-    marginRight: 20,
-  },
-})
-
-interface Props {
-  classes: any
-  actions: {
-    settings: typeof settingsActions,
-    connection: typeof connectionActions,
-  }
-  topicFilter?: string
-}
-
-class TitleBar extends React.Component<Props, {}> {
-  constructor(props: any) {
-    super(props)
-    this.state = { }
-  }
-
-  public render() {
-    const { actions, classes } = this.props
-
-    return (
-      <AppBar position="static">
-        <Toolbar>
-          <IconButton className={classes.menuButton} color="inherit" aria-label="Menu" onClick={actions.settings.toggleSettingsVisibility}>
-            <Menu />
-          </IconButton>
-          <Typography className={classes.title} variant="h6" color="inherit">MQTT Explorer</Typography>
-          {this.renderSearch()}
-          <Button style={{ margin: 'auto 8px auto auto' }} onClick={actions.connection.disconnect}>
-            Disconnect <CloudOff style={{ marginRight: '8px', paddingLeft: '8px' }}/>
-          </Button>
-          <ConnectionHealthIndicator />
-        </Toolbar>
-      </AppBar>
-    )
-  }
-
-  private renderSearch() {
-    const { classes, topicFilter } = this.props
-
-    return (
-      <div className={classes.search}>
-        <div className={classes.searchIcon}>
-          <Search />
-        </div>
-        <InputBase
-          value={topicFilter}
-          onChange={this.onFilterChange}
-          placeholder="Search…"
-          endAdornment={<div style={{ width: '24px', paddingRight: '8px' }}><ClearAdornment action={this.clearFilter} value={topicFilter} /></div>}
-          classes={{ root: classes.inputRoot, input: classes.inputInput }}
-        />
-      </div>
-    )
-  }
-
-  private clearFilter = () => {
-    this.props.actions.settings.filterTopics('')
-  }
-
-  private onFilterChange = (event: React.ChangeEvent<HTMLInputElement>) => {
-    this.props.actions.settings.filterTopics(event.target.value)
-  }
-}
-
-const mapStateToProps = (state: AppState) => {
-  return {
-    topicFilter: state.settings.topicFilter,
-  }
-}
-
-const mapDispatchToProps = (dispatch: any) => {
-  return {
-    actions: {
-      settings: bindActionCreators(settingsActions, dispatch),
-      connection: bindActionCreators(connectionActions, dispatch),
-    },
-  }
-}
-
-export default connect(mapStateToProps, mapDispatchToProps)(withStyles(styles)(TitleBar))

app/src/components/TopicPlot.tsx

@@ -0,0 +1,48 @@
+import * as dotProp from 'dot-prop'
+import * as q from '../../../backend/src/Model'
+import * as React from 'react'
+import PlotHistory from './Sidebar/PlotHistory'
+import { Base64Message } from '../../../backend/src/Model/Base64Message'
+import { toPlottableValue } from './Sidebar/CodeDiff/util'
+import { PlotCurveTypes } from '../reducers/Charts'
+
+interface Props {
+  history: q.MessageHistory
+  dotPath?: string
+  interpolation?: PlotCurveTypes
+  range?: [number?, number?]
+  color?: string
+}
+
+function nodeToHistory(history: q.MessageHistory) {
+  return history
+    .toArray()
+    .map((message: q.Message) => {
+      const value = message.value ? toPlottableValue(Base64Message.toUnicodeString(message.value)) : NaN
+      return { x: message.received.getTime(), y: toPlottableValue(value) }
+    })
+    .filter(data => !isNaN(data.y as any)) as any
+}
+
+function nodeDotPathToHistory(history: q.MessageHistory, dotPath: string) {
+  return history
+    .toArray()
+    .map((message: q.Message) => {
+      let json = {}
+      try {
+        json = message.value ? JSON.parse(Base64Message.toUnicodeString(message.value)) : {}
+      } catch (ignore) {}
+
+      let value = dotProp.get(json, dotPath)
+
+      return { x: message.received.getTime(), y: toPlottableValue(value) }
+    })
+    .filter(data => !isNaN(data.y as any)) as any
+}
+
+function render(props: Props) {
+  const data = props.dotPath ? nodeDotPathToHistory(props.history, props.dotPath) : nodeToHistory(props.history)
+  return <PlotHistory color={props.color} range={props.range} interpolation={props.interpolation} data={data} />
+}
+
+export default render

app/src/components/Tree/Tree.tsx

@@ -4,8 +4,9 @@ import TreeNode from './TreeNode'
 import { AppState } from '../../reducers'
 import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
-import { TopicOrder } from '../../reducers/Settings'
-import { TopicViewModel } from '../../TopicViewModel'
+import { Record } from 'immutable'
+import { SettingsState } from '../../reducers/Settings'
+import { TopicViewModel } from '../../model/TopicViewModel'
 import { treeActions } from '../../actions'
 
 const MovingAverage = require('moving-average')
@@ -21,17 +22,15 @@ interface Props {
   tree?: q.Tree<TopicViewModel>
   filter: string
   host?: string
-  topicOrder: TopicOrder
-  autoExpandLimit: number
-  highlightTopicUpdates: boolean
-  selectTopicWithMouseOver: boolean
+  paused: boolean
+  settings: Record<SettingsState>
 }
 
 interface State {
   lastUpdate: number
 }
 
-class Tree extends React.PureComponent<Props, State> {
+class TreeComponent extends React.PureComponent<Props, State> {
   private updateTimer?: any
   private perf: number = 0
   private renderTime = 0
@@ -41,6 +40,10 @@ class Tree extends React.PureComponent<Props, State> {
     this.state = { lastUpdate: 0 }
   }
 
+  private performanceCallback = (ms: number) => {
+    average.push(Date.now(), ms)
+  }
+
   public time(): number {
     const time = performance.now() - this.perf
     this.perf = performance.now()
@@ -74,15 +77,24 @@ class Tree extends React.PureComponent<Props, State> {
     const timeUntilNextUpdate = updateInterval - (performance.now() - this.renderTime)
 
     this.updateTimer = setTimeout(() => {
-      window.requestIdleCallback(() => {
-        this.updateTimer && clearTimeout(this.updateTimer)
-        this.updateTimer = undefined
-        this.renderTime = performance.now()
-        this.props.tree && this.props.tree.applyUnmergedChanges()
-        window.requestIdleCallback(() => {
-          this.setState({ lastUpdate: this.renderTime })
-        }, { timeout: 100 })
-      }, { timeout: 500 })
+      window.requestIdleCallback(
+        () => {
+          this.updateTimer && clearTimeout(this.updateTimer)
+          this.updateTimer = undefined
+          this.renderTime = performance.now()
+
+          if (!this.props.paused) {
+            this.props.tree && this.props.tree.applyUnmergedChanges()
+          }
+          window.requestIdleCallback(
+            () => {
+              this.setState({ lastUpdate: this.renderTime })
+            },
+            { timeout: 100 }
+          )
+        },
+        { timeout: 500 }
+      )
     }, Math.max(0, timeUntilNextUpdate))
   }
 
@@ -95,43 +107,38 @@ class Tree extends React.PureComponent<Props, State> {
     const style: React.CSSProperties = {
       lineHeight: '1.1',
       cursor: 'default',
+      overflowY: 'scroll',
+      overflowX: 'hidden',
+      height: '100%',
+      width: '100%',
+      paddingBottom: '16px', // avoid conflict with chart panel Resizer
     }
 
     return (
       <div style={style}>
         <TreeNode
           key={tree.hash()}
-          animateChages={true}
           isRoot={true}
           treeNode={tree}
           name={this.props.host}
           collapsed={false}
           performanceCallback={this.performanceCallback}
-          autoExpandLimit={this.props.autoExpandLimit}
-          topicOrder={this.props.topicOrder}
+          settings={this.props.settings}
           lastUpdate={tree.lastUpdate}
           didSelectTopic={this.props.actions.selectTopic}
-          highlightTopicUpdates={this.props.highlightTopicUpdates}
-          selectTopicWithMouseOver={this.props.selectTopicWithMouseOver}
         />
       </div>
     )
   }
-
-  private performanceCallback = (ms: number) => {
-    average.push(Date.now(), ms)
-  }
 }
 
 const mapStateToProps = (state: AppState) => {
   return {
-    tree: state.tree.tree,
-    filter: state.tree.filter,
+    tree: state.tree.get('tree'),
+    paused: state.tree.get('paused'),
+    filter: state.tree.get('filter'),
     host: state.connection.host,
-    autoExpandLimit: state.settings.autoExpandLimit,
-    topicOrder: state.settings.topicOrder,
-    highlightTopicUpdates: state.settings.highlightTopicUpdates,
-    selectTopicWithMouseOver: state.settings.selectTopicWithMouseOver,
+    settings: state.settings,
   }
 }
 
@@ -141,4 +148,7 @@ const mapDispatchToProps = (dispatch: any) => {
   }
 }
 
-export default connect(mapStateToProps, mapDispatchToProps)(Tree)
+export default connect(
+  mapStateToProps,
+  mapDispatchToProps
+)(TreeComponent)

app/src/components/Tree/TreeNode.tsx

@@ -2,9 +2,10 @@ import * as q from '../../../../backend/src/Model'
 import * as React from 'react'
 import TreeNodeSubnodes from './TreeNodeSubnodes'
 import TreeNodeTitle from './TreeNodeTitle'
+import { Record } from 'immutable'
+import { SettingsState } from '../../reducers/Settings'
 import { Theme, withStyles } from '@material-ui/core/styles'
-import { TopicOrder } from '../../reducers/Settings'
-import { TopicViewModel } from '../../TopicViewModel'
+import { TopicViewModel } from '../../model/TopicViewModel'
 
 const debounce = require('lodash.debounce')
 
@@ -32,16 +33,24 @@ const styles = (theme: Theme) => {
       marginLeft: theme.spacing(1.5),
     },
     selected: {
-      backgroundColor: 'rgba(170, 170, 170, 0.55)',
+      backgroundColor: theme.palette.type === 'dark' ? 'rgba(170, 170, 170, 0.55)' : 'rgba(170, 170, 170, 0.55)',
     },
     hover: {
-      backgroundColor: 'rgba(100, 100, 100, 0.55)',
+      backgroundColor: theme.palette.type === 'dark' ? 'rgba(100, 100, 100, 0.55)' : 'rgba(200, 200, 200, 0.55)',
+    },
+    title: {
+      borderRadius: '4px',
+      lineHeight: '1em',
+      display: 'inline-block' as 'inline-block',
+      whiteSpace: 'nowrap' as 'nowrap',
+      padding: '1px 4px 0px 4px',
+      height: '14px',
+      margin: '1px 0px 2px 0px',
     },
   }
 }
 
 interface Props {
-  animateChages: boolean
   isRoot?: boolean
   treeNode: q.TreeNode<TopicViewModel>
   name?: string | undefined
@@ -49,12 +58,10 @@ interface Props {
   performanceCallback?: ((ms: number) => void) | undefined
   classes: any
   className?: string
-  topicOrder: TopicOrder
-  autoExpandLimit: number
   lastUpdate: number
   didSelectTopic: any
-  highlightTopicUpdates: boolean
-  selectTopicWithMouseOver: boolean
+  theme: Theme
+  settings: Record<SettingsState>
 }
 
 interface State {
@@ -63,10 +70,7 @@ interface State {
   selected: boolean
 }
 
-class TreeNode extends React.Component<Props, State> {
-  private dirtySubnodes: boolean = true
-  private dirtyEdges: boolean = true
-  private dirtyMessage: boolean = true
+class TreeNodeComponent extends React.Component<Props, State> {
   private animationDirty: boolean = false
 
   private cssAnimationWasSetAt?: number
@@ -74,17 +78,9 @@ class TreeNode extends React.Component<Props, State> {
   private willUpdateTime: number = performance.now()
   private nodeRef?: React.RefObject<HTMLDivElement> = React.createRef<HTMLDivElement>()
 
-  private subnodesDidchange = () => {
-    this.dirtySubnodes = true
-  }
-
-  private messageDidChange = () => {
-    this.dirtyMessage = true
-  }
-
-  private edgesDidChange = () => {
-    this.dirtyMessage = true
-  }
+  private setHover = debounce((hover: boolean) => {
+    this.setState({ mouseOver: hover })
+  }, 45)
 
   constructor(props: Props) {
     super(props)
@@ -96,74 +92,26 @@ class TreeNode extends React.Component<Props, State> {
     }
   }
 
-  public componentDidMount() {
-    const { treeNode } = this.props
-    this.addSubscriber(treeNode)
-  }
-
   private addSubscriber(treeNode: q.TreeNode<TopicViewModel>) {
     treeNode.viewModel = new TopicViewModel()
     treeNode.viewModel.change.subscribe(this.viewStateHasChanged)
-    treeNode.onMerge.subscribe(this.subnodesDidchange)
-    treeNode.onEdgesChange.subscribe(this.edgesDidChange)
-    treeNode.onMessage.subscribe(this.messageDidChange)
   }
 
-  private viewStateHasChanged = (msg: void, viewModel: TopicViewModel) => {
-    this.setState({ selected: viewModel.isSelected() })
+  private viewStateHasChanged = () => {
+    this.props.treeNode.viewModel && this.setState({ selected: this.props.treeNode.viewModel.isSelected() })
   }
 
   private removeSubscriber(treeNode: q.TreeNode<TopicViewModel>) {
     treeNode.viewModel && treeNode.viewModel.change.unsubscribe(this.viewStateHasChanged)
     treeNode.viewModel = undefined
-    treeNode.onMerge.unsubscribe(this.subnodesDidchange)
-    treeNode.onEdgesChange.unsubscribe(this.edgesDidChange)
-    treeNode.onMessage.unsubscribe(this.messageDidChange)
-  }
-
-  public componentWillReceiveProps(nextProps: Props) {
-    if (nextProps.treeNode !== this.props.treeNode) {
-      this.removeSubscriber(this.props.treeNode)
-      this.addSubscriber(nextProps.treeNode)
-    }
-  }
-
-  public componentWillUnmount() {
-    const { treeNode } = this.props
-    this.removeSubscriber(treeNode)
-    this.nodeRef = undefined
   }
 
   private stateHasChanged(newState: State) {
-    return this.state.collapsedOverride !== newState.collapsedOverride
-      || this.state.mouseOver !== newState.mouseOver
-      || this.state.selected !== newState.selected
-  }
-
-  private propsHasChanged(newProps: Props) {
-    return this.props.autoExpandLimit !== newProps.autoExpandLimit
-  }
-
-  public shouldComponentUpdate(nextProps: Props, nextState: State) {
-    const shouldRenderToRemoveCssAnimation = this.cssAnimationWasSetAt !== undefined
-    return this.stateHasChanged(nextState)
-      || this.propsHasChanged(nextProps)
-      || (this.dirtyEdges || this.dirtyMessage || this.dirtySubnodes)
-      || this.animationDirty
-      || shouldRenderToRemoveCssAnimation
-  }
-
-  public componentDidUpdate() {
-    if (this.props.performanceCallback) {
-      const renderTime = performance.now() - this.willUpdateTime
-      this.props.performanceCallback(renderTime)
-    }
-  }
-
-  public componentWillUpdate() {
-    if (this.props.performanceCallback) {
-      this.willUpdateTime = performance.now()
-    }
+    return (
+      this.state.collapsedOverride !== newState.collapsedOverride ||
+      this.state.mouseOver !== newState.mouseOver ||
+      this.state.selected !== newState.selected
+    )
   }
 
   private toggle() {
@@ -175,45 +123,7 @@ class TreeNode extends React.Component<Props, State> {
       return this.state.collapsedOverride
     }
 
-    return this.props.treeNode.edgeCount() > this.props.autoExpandLimit
-  }
-
-  public render() {
-    const { classes } = this.props
-    const isDirty = this.dirtyEdges || this.dirtyMessage || this.dirtySubnodes
-    this.dirtyEdges = this.dirtyMessage = this.dirtySubnodes = false
-
-    const shouldStartAnimation = (isDirty && !this.animationDirty) && !this.props.isRoot && this.props.highlightTopicUpdates
-    const animation = shouldStartAnimation ? { willChange: 'auto', translateZ: 0, animation: 'example 0.5s' } : {}
-    this.animationDirty = shouldStartAnimation
-
-    const highlightClass = this.state.selected ? this.props.classes.selected : (this.state.mouseOver ? this.props.classes.hover : '')
-
-    return (
-      <div>
-        <div
-          key={this.props.treeNode.hash()}
-          className={`${classes.node} ${this.props.className}`}
-          onMouseOver={this.mouseOver}
-          onMouseOut={this.mouseOut}
-          onClick={this.didClickTitle}
-          ref={this.nodeRef}
-        >
-          <TreeNodeTitle
-            style={animation}
-            toggleCollapsed={this.toggleCollapsed}
-            didSelectNode={this.didSelectTopic}
-            collapsed={this.collapsed()}
-            treeNode={this.props.treeNode}
-            name={this.props.name}
-            className={highlightClass}
-          />
-        </div>
-        <div className={classes.subnodes}>
-          {this.renderNodes()}
-        </div>
-      </div>
-    )
+    return this.props.treeNode.edgeCount() > this.props.settings.get('autoExpandLimit')
   }
 
   private didSelectTopic = () => {
@@ -229,7 +139,12 @@ class TreeNode extends React.Component<Props, State> {
   private mouseOver = (event: React.MouseEvent) => {
     event.stopPropagation()
     this.setHover(true)
-    if (this.props.selectTopicWithMouseOver && this.props.treeNode && this.props.treeNode.message && this.props.treeNode.message.value) {
+    if (
+      this.props.settings.get('selectTopicWithMouseOver') &&
+      this.props.treeNode &&
+      this.props.treeNode.message &&
+      this.props.treeNode.message.value
+    ) {
       this.props.didSelectTopic(this.props.treeNode)
     }
   }
@@ -239,10 +154,6 @@ class TreeNode extends React.Component<Props, State> {
     this.setHover(false)
   }
 
-  private setHover = debounce((hover: boolean) => {
-    this.setState({ mouseOver: hover })
-  }, 45)
-
   private toggleCollapsed = (event: React.MouseEvent) => {
     event.stopPropagation()
     this.toggle()
@@ -255,18 +166,90 @@ class TreeNode extends React.Component<Props, State> {
 
     return (
       <TreeNodeSubnodes
-        animateChanges={this.props.animateChages}
         collapsed={this.collapsed()}
         treeNode={this.props.treeNode}
-        autoExpandLimit={this.props.autoExpandLimit}
-        topicOrder={this.props.topicOrder}
         lastUpdate={this.props.treeNode.lastUpdate}
         didSelectTopic={this.props.didSelectTopic}
-        highlightTopicUpdates={this.props.highlightTopicUpdates}
-        selectTopicWithMouseOver={this.props.selectTopicWithMouseOver}
+        settings={this.props.settings}
       />
     )
   }
+
+  public componentDidMount() {
+    const { treeNode } = this.props
+    this.addSubscriber(treeNode)
+  }
+
+  public componentWillUnmount() {
+    const { treeNode } = this.props
+    this.removeSubscriber(treeNode)
+    this.nodeRef = undefined
+  }
+
+  public shouldComponentUpdate(nextProps: Props, nextState: State) {
+    const shouldRenderToRemoveCssAnimation = this.cssAnimationWasSetAt !== undefined
+    return (
+      this.stateHasChanged(nextState) ||
+      this.props.settings !== nextProps.settings ||
+      this.props.lastUpdate !== nextProps.lastUpdate ||
+      this.animationDirty ||
+      shouldRenderToRemoveCssAnimation
+    )
+  }
+
+  public componentDidUpdate() {
+    if (this.props.performanceCallback) {
+      const renderTime = performance.now() - this.willUpdateTime
+      this.props.performanceCallback(renderTime)
+    }
+  }
+
+  public componentWillUpdate() {
+    if (this.props.performanceCallback) {
+      this.willUpdateTime = performance.now()
+    }
+  }
+
+  public render() {
+    const { classes } = this.props
+
+    const shouldStartAnimation =
+      !this.animationDirty && !this.props.isRoot && this.props.settings.get('highlightTopicUpdates')
+    const animationName = this.props.theme.palette.type === 'light' ? 'updateLight' : 'updateDark'
+    const animation = shouldStartAnimation
+      ? { willChange: 'auto', translateZ: 0, animation: `${animationName} 0.5s` }
+      : {}
+    this.animationDirty = shouldStartAnimation
+
+    const highlightClass = this.state.selected
+      ? this.props.classes.selected
+      : this.state.mouseOver
+      ? this.props.classes.hover
+      : ''
+
+    return (
+      <div>
+        <div
+          key={this.props.treeNode.hash()}
+          className={`${classes.node} ${this.props.className} ${highlightClass} ${classes.title}`}
+          style={animation}
+          onMouseOver={this.mouseOver}
+          onMouseOut={this.mouseOut}
+          onClick={this.didClickTitle}
+          ref={this.nodeRef}
+        >
+          <TreeNodeTitle
+            toggleCollapsed={this.toggleCollapsed}
+            didSelectNode={this.didSelectTopic}
+            collapsed={this.collapsed()}
+            treeNode={this.props.treeNode}
+            name={this.props.name}
+          />
+        </div>
+        {this.renderNodes()}
+      </div>
+    )
+  }
 }
 
-export default withStyles(styles)(TreeNode)
+export default withStyles(styles, { withTheme: true })(TreeNodeComponent)

app/src/components/Tree/TreeNodeSubnodes.tsx

@@ -1,24 +1,20 @@
-import * as React from 'react'
 import * as q from '../../../../backend/src/Model'
-
+import * as React from 'react'
 import TreeNode from './TreeNode'
-import { TopicOrder } from '../../reducers/Settings'
+import { Record } from 'immutable'
+import { SettingsState, TopicOrder } from '../../reducers/Settings'
 import { Theme, withStyles } from '@material-ui/core'
-import { TopicViewModel } from '../../TopicViewModel'
+import { TopicViewModel } from '../../model/TopicViewModel'
 
 export interface Props {
-  animateChanges: boolean
   treeNode: q.TreeNode<TopicViewModel>
   filter?: string
   collapsed?: boolean | undefined
   classes: any
   lastUpdate: number
-  topicOrder: TopicOrder
   selectedTopic?: q.TreeNode<TopicViewModel>
-  autoExpandLimit: number
   didSelectTopic: any
-  highlightTopicUpdates: boolean
-  selectTopicWithMouseOver: boolean
+  settings: Record<SettingsState>
 }
 
 interface State {
@@ -32,8 +28,9 @@ class TreeNodeSubnodes extends React.Component<Props, State> {
     this.state = { alreadyAdded: 10 }
   }
 
-  private sortedNodes(): q.TreeNode<TopicViewModel>[] {
-    const { topicOrder, treeNode } = this.props
+  private sortedNodes(): Array<q.TreeNode<TopicViewModel>> {
+    const { settings, treeNode } = this.props
+    const topicOrder = settings.get('topicOrder')
 
     let edges = treeNode.edgeArray
     if (topicOrder === TopicOrder.abc) {
@@ -52,13 +49,16 @@ class TreeNodeSubnodes extends React.Component<Props, State> {
   }
 
   private renderMore() {
-    this.renderMoreAnimationFrame = (window as any).requestIdleCallback(() => {
-      this.setState({ ...this.state, alreadyAdded: this.state.alreadyAdded * 1.5 })
-    }, { timeout: 500 })
+    this.renderMoreAnimationFrame = (window as any).requestIdleCallback(
+      () => {
+        this.setState({ ...this.state, alreadyAdded: this.state.alreadyAdded * 1.5 })
+      },
+      { timeout: 500 }
+    )
   }
 
   public componentWillUnmount() {
-    (window as any).cancelIdleCallback(this.renderMoreAnimationFrame)
+    ;(window as any).cancelIdleCallback(this.renderMoreAnimationFrame)
   }
 
   public render() {
@@ -72,28 +72,20 @@ class TreeNodeSubnodes extends React.Component<Props, State> {
     }
 
     const nodes = this.sortedNodes().slice(0, this.state.alreadyAdded)
-    const listItems = nodes.map((node) => {
+    const listItems = nodes.map(node => {
       return (
         <TreeNode
           key={`${node.hash()}-${this.props.filter}`}
-          animateChages={this.props.animateChanges}
           treeNode={node}
           className={this.props.classes.listItem}
-          topicOrder={this.props.topicOrder}
-          autoExpandLimit={this.props.autoExpandLimit}
           lastUpdate={node.lastUpdate}
           didSelectTopic={this.props.didSelectTopic}
-          highlightTopicUpdates={this.props.highlightTopicUpdates}
-          selectTopicWithMouseOver={this.props.selectTopicWithMouseOver}
+          settings={this.props.settings}
         />
       )
     })
 
-    return (
-      <span className={this.props.classes.list}>
-        {listItems}
-      </span>
-    )
+    return <span className={this.props.classes.list}>{listItems}</span>
   }
 }
 
@@ -101,9 +93,7 @@ const styles = (theme: Theme) => ({
   list: {
     display: 'block' as 'block',
     clear: 'both' as 'both',
-  },
-  listItem: {
-    padding: `0px 0px 0px ${theme.spacing(1)}`,
+    marginLeft: theme.spacing(1.5),
   },
 })
 

app/src/components/Tree/TreeNodeTitle.tsx

@@ -1,43 +1,38 @@
 import * as React from 'react'
-import { connect } from 'react-redux'
 import * as q from '../../../../backend/src/Model'
 import { withStyles, Theme } from '@material-ui/core'
-import { TopicViewModel } from '../../TopicViewModel'
-const debounce = require('lodash.debounce')
+import { TopicViewModel } from '../../model/TopicViewModel'
+import { Base64Message } from '../../../../backend/src/Model/Base64Message'
 
 export interface TreeNodeProps extends React.HTMLAttributes<HTMLElement> {
   treeNode: q.TreeNode<TopicViewModel>
   name?: string | undefined
   collapsed?: boolean | undefined
-  classes: any
   didSelectNode: any
   toggleCollapsed: any
+  classes: any
 }
 
 class TreeNodeTitle extends React.Component<TreeNodeProps, {}> {
-  public render() {
-    const { classes, treeNode, style, className } = this.props
+  private renderSourceEdge() {
+    const name = this.props.name || (this.props.treeNode.sourceEdge && this.props.treeNode.sourceEdge.name)
+
     return (
-      <span
-        className={`${classes.title} ${className}`}
-        style={style}
-      >
-        <span className={classes.expander} onClick={this.props.toggleCollapsed}>{this.renderExpander()}</span>
-        {this.renderSourceEdge()} {this.renderCollapsedSubnodes()} {this.renderValue()}
+      <span key="edge" className={this.props.classes.sourceEdge}>
+        {name}
       </span>
     )
   }
 
-  private renderSourceEdge() {
-    const name = this.props.name || (this.props.treeNode.sourceEdge && this.props.treeNode.sourceEdge.name)
-
-    return <span className={this.props.classes.sourceEdge}>{name}</span>
-  }
-
   private renderValue() {
-    return this.props.treeNode.message && this.props.treeNode.message.length > 0
-      ? <span className={this.props.classes.value}> = {this.props.treeNode.message.value.toString().slice(0, 120)}</span>
-      : null
+    return this.props.treeNode.message &&
+      this.props.treeNode.message.value &&
+      this.props.treeNode.message.length > 0 ? (
+      <span key="value" className={this.props.classes.value}>
+        {' '}
+        = {Base64Message.toUnicodeString(this.props.treeNode.message.value).slice(0, 120)}
+      </span>
+    ) : null
   }
 
   private renderExpander() {
@@ -45,16 +40,29 @@ class TreeNodeTitle extends React.Component<TreeNodeProps, {}> {
       return null
     }
 
-    return this.props.collapsed ? '▶' : '▼'
+    return (
+      <span key="expander" className={this.props.classes.expander} onClick={this.props.toggleCollapsed}>
+        {this.props.collapsed ? '▶' : '▼'}
+      </span>
+    )
   }
 
-  private renderCollapsedSubnodes() {
+  private renderMetadata() {
     if (this.props.treeNode.edgeCount() === 0 || !this.props.collapsed) {
       return null
     }
 
     const messages = this.props.treeNode.leafMessageCount()
-    return <span className={this.props.classes.collapsedSubnodes}>({this.props.treeNode.childTopicCount()} topics, {messages} messages)</span>
+    return (
+      <span
+        key="metadata"
+        className={this.props.classes.collapsedSubnodes}
+      >{`(${this.props.treeNode.childTopicCount()} topics, ${messages} messages)`}</span>
+    )
+  }
+
+  public render() {
+    return [this.renderExpander(), this.renderSourceEdge(), this.renderMetadata(), this.renderValue()]
   }
 }
 
@@ -73,18 +81,11 @@ const styles = (theme: Theme) => ({
     color: theme.palette.type === 'light' ? '#222' : '#eee',
     cursor: 'pointer' as 'pointer',
     paddingRight: theme.spacing(0.25),
-  },
-  title: {
-    borderRadius: '4px',
-    lineHeight: '1em',
-    display: 'inline-block' as 'inline-block',
-    whiteSpace: 'nowrap' as 'nowrap',
-    padding: '1px 4px 0px 4px',
-    height: '14px',
-    margin: '1px 0px 2px 0px',
+    userSelect: 'none' as 'none',
   },
   collapsedSubnodes: {
     color: theme.palette.text.secondary,
+    userSelect: 'none' as 'none',
   },
 })
 

app/src/components/UpdateNotifier.tsx

@@ -1,27 +1,18 @@
-import * as React from 'react'
-
-import {
-   Button,
-   IconButton,
-   Modal,
-   Paper,
-   Snackbar,
-   SnackbarContent,
-   Typography,
-} from '@material-ui/core'
-import { Theme, withStyles } from '@material-ui/core/styles'
-import { green } from '@material-ui/core/colors'
-
-import { AppState } from './reducers'
-import Close from '@material-ui/icons/Close'
-import CloudDownload from '@material-ui/icons/CloudDownload'
-import { bindActionCreators } from 'redux'
-import { connect } from 'react-redux'
-import { updateNotifierActions } from './actions'
-import axios from 'axios'
 import * as compareVersions from 'compare-versions'
 import * as electron from 'electron'
 import * as os from 'os'
+import * as React from 'react'
+import axios from 'axios'
+import Close from '@material-ui/icons/Close'
+import CloudDownload from '@material-ui/icons/CloudDownload'
+import { AppState } from '../reducers'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { green } from '@material-ui/core/colors'
+import { Theme, withStyles } from '@material-ui/core/styles'
+import { updateNotifierActions } from '../actions'
+
+import { Button, IconButton, Modal, Paper, Snackbar, SnackbarContent, Typography } from '@material-ui/core'
 
 interface Props {
   showUpdateNotification: boolean
@@ -31,25 +22,27 @@ interface Props {
 }
 
 interface GithubRelease {
-  url: string,
-  assets?: GithubAsset[]
+  url: string
+  assets?: Array<GithubAsset>
   published_at: string // "2019-01-25T20:14:39Z"
   body_html: string
   body: string
   body_text: string
   tag_name: string
+  prerelease: boolean
 }
 
 interface GithubAsset {
   id: number
   node_id: string
   url: string
+  browser_download_url: string
   name: string
   label: string
 }
 
 interface State {
-  newerVersions: GithubRelease[]
+  newerVersions: Array<GithubRelease>
 }
 
 class UpdateNotifier extends React.Component<Props, State> {
@@ -57,10 +50,10 @@ class UpdateNotifier extends React.Component<Props, State> {
     super(props)
     this.state = { newerVersions: [] }
 
-    // window.compare = compareVersions
     const ownVersion = electron.remote.app.getVersion()
-    this.fetchReleases().then((releases) => {
+    this.fetchReleases().then(releases => {
       const newerVersions = releases
+        .filter(release => this.allowPrereleaseIfOwnVersionIsBeta(release, ownVersion))
         .filter(release => compareVersions(release.tag_name, ownVersion) > 0)
         .sort((a, b) => compareVersions(b.tag_name, a.tag_name))
 
@@ -71,14 +64,20 @@ class UpdateNotifier extends React.Component<Props, State> {
     })
   }
 
-  private fetchReleases(): Promise<GithubRelease[]> {
-    return axios.get('https://api.github.com/repos/thomasnordquist/mqtt-explorer/releases', {
+  private allowPrereleaseIfOwnVersionIsBeta(release: GithubRelease, ownVersion: string) {
+    const ownVersionIsBeta = !/alpha|beta/.test(ownVersion)
+
+    return ownVersionIsBeta || !release.prerelease
+  }
+
+  private async fetchReleases(): Promise<Array<GithubRelease>> {
+    const res = await axios.get('https://api.github.com/repos/thomasnordquist/mqtt-explorer/releases', {
       headers: {
         accept: 'application/vnd.github.v3.full+json',
       },
-    }).then((res) => {
-      return res.data
     })
+
+    return res.data as Array<GithubRelease>
   }
 
   private onCloseNotification = (event: React.SyntheticEvent<any>, reason: string) => {
@@ -101,15 +100,6 @@ class UpdateNotifier extends React.Component<Props, State> {
     this.props.actions.showUpdateDetails(false)
   }
 
-  public render() {
-    return (
-      <div>
-        {this.renderUpdateNotification()}
-        {this.renderUpdateDetails()}
-      </div>
-    )
-  }
-
   private renderUpdateNotification() {
     const snackbarAnchor: any = {
       vertical: 'top',
@@ -133,21 +123,19 @@ class UpdateNotifier extends React.Component<Props, State> {
   }
 
   private notificationActions() {
-    return [(
-        <Button key="undo" size="small" onClick={this.showDetails}>
-          Details
-        </Button>
-      ), (
-        <IconButton
-          key="close"
-          aria-label="Close"
-          color="inherit"
-          className={this.props.classes.close}
-          onClick={this.closeNotification}
-        >
-          <Close />
-        </IconButton>
-      ),
+    return [
+      <Button key="undo" size="small" onClick={this.showDetails}>
+        Details
+      </Button>,
+      <IconButton
+        key="close"
+        aria-label="Close"
+        color="inherit"
+        className={this.props.classes.close}
+        onClick={this.closeNotification}
+      >
+        <Close />
+      </IconButton>,
     ]
   }
 
@@ -161,30 +149,27 @@ class UpdateNotifier extends React.Component<Props, State> {
       .join('<hr />')
 
     return (
-      <Modal
-        open={this.props.showUpdateDetails}
-        disableAutoFocus={true}
-        onClose={this.hideDetails}
-      >
+      <Modal open={this.props.showUpdateDetails} disableAutoFocus={true} onClose={this.hideDetails}>
         <Paper className={this.props.classes.root}>
-          <Typography variant="h6" className={this.props.classes.title}>Version {latestUpdate.tag_name}</Typography>
+          <Typography variant="h6" className={this.props.classes.title}>
+            Version {latestUpdate.tag_name}
+          </Typography>
           <Typography className={this.props.classes.title}>Changelog</Typography>
           <div className={this.props.classes.releaseNotes} dangerouslySetInnerHTML={{ __html: releaseNotes }} />
           {this.renderDownloads()}
-          <Button
-            className={this.props.classes.download}
-            onClick={this.openGithub}
-          >
+          <Button className={this.props.classes.download} onClick={this.openHomePage}>
             Github Page
           </Button>
-          <Button className={this.props.classes.closeButton} color="secondary" onClick={this.hideDetails}>Close</Button>
+          <Button className={this.props.classes.closeButton} color="secondary" onClick={this.hideDetails}>
+            Close
+          </Button>
         </Paper>
       </Modal>
     )
   }
 
-  private openGithub = () => {
-    this.openUrl('https://github.com/thomasnordquist/MQTT-Explorer')
+  private openHomePage = () => {
+    this.openUrl('https://mqtt-explorer.com')
   }
 
   private openUrl = (url: string) => {
@@ -206,22 +191,27 @@ class UpdateNotifier extends React.Component<Props, State> {
 
   private renderDownloads() {
     const latestUpdate = this.state.newerVersions[0]
-    if (!latestUpdate || !latestUpdate.assets) {
+    if (!latestUpdate || !latestUpdate.assets) {
       return null
     }
 
-    return latestUpdate.assets
-      .filter(this.assetForCurrentPlatform)
-      .map(asset => (
-        <div>
-          <Button
-            className={this.props.classes.download}
-            onClick={() => this.openUrl(asset.url)}
-          >
-            <CloudDownload />&nbsp;{asset.name}
-          </Button>
-        </div>
-      ))
+    return latestUpdate.assets.filter(this.assetForCurrentPlatform).map(asset => (
+      <div>
+        <Button className={this.props.classes.download} onClick={() => this.openUrl(asset.browser_download_url)}>
+          <CloudDownload />
+          &nbsp;{asset.name}
+        </Button>
+      </div>
+    ))
+  }
+
+  public render() {
+    return (
+      <div>
+        {this.renderUpdateNotification()}
+        {this.renderUpdateDetails()}
+      </div>
+    )
   }
 }
 
@@ -265,8 +255,8 @@ const styles = (theme: Theme) => ({
 
 const mapStateToProps = (state: AppState) => {
   return {
-    showUpdateNotification: state.globalState.showUpdateNotification,
-    showUpdateDetails: state.globalState.showUpdateDetails,
+    showUpdateNotification: state.globalState.get('showUpdateNotification'),
+    showUpdateDetails: state.globalState.get('showUpdateDetails'),
   }
 }
 
@@ -276,4 +266,9 @@ const mapDispatchToProps = (dispatch: any) => {
   }
 }
 
-export default withStyles(styles)(connect(mapStateToProps, mapDispatchToProps)(UpdateNotifier))
+export default withStyles(styles)(
+  connect(
+    mapStateToProps,
+    mapDispatchToProps
+  )(UpdateNotifier)
+)

app/src/components/demo/index.tsx

@@ -1,14 +0,0 @@
-import * as React from 'react'
-import ShowText from './ShowText'
-import Mouse from './Mouse';
-
-(window as any).demo = {}
-
-export default function render(props: any) {
-  return (
-    <span>
-      <ShowText />
-      <Mouse />
-    </span>
-  )
-}

app/src/components/helper/ClearAdornment.tsx

@@ -1,28 +1,30 @@
 import * as React from 'react'
 import Clear from '@material-ui/icons/Clear'
-import { IconButton } from '@material-ui/core'
+import { IconButton, Theme } from '@material-ui/core'
+import { withTheme } from '@material-ui/core/styles'
 
 interface Props {
   value?: string
   action: any
   style?: React.CSSProperties
+  variant?: 'primary'
+  theme: Theme
 }
 
 /**
  * Clear button for text input fields
  */
-class ClearAdornment extends React.Component<Props, {}> {
-  public render() {
-    if (this.props.value) {
-      return (
-        <IconButton style={{ ...this.props.style, padding: '1px' }} onClick={this.props.action}>
-          <Clear style={{ fontSize: '16px' }} />
-        </IconButton>
-      )
-    }
-
+function ClearAdornment(props: Props) {
+  if (!props.value) {
     return null
   }
+
+  const color = props.variant === 'primary' ? props.theme.palette.primary.contrastText : undefined
+  return (
+    <IconButton style={{ ...props.style, padding: '1px' }} onClick={props.action}>
+      <Clear style={{ color, fontSize: '16px' }} />
+    </IconButton>
+  )
 }
 
-export default ClearAdornment
+export default withTheme(ClearAdornment)

app/src/components/helper/ConnectionHealthIndicator.tsx

@@ -1,28 +1,40 @@
 import * as React from 'react'
 import DeviceHubOutlined from '@material-ui/icons/DeviceHubOutlined'
-import { AppState } from '../reducers'
+import { AppState } from '../../reducers'
 import { connect } from 'react-redux'
-import { ConnectionHealth } from '../reducers/Connection'
+import { ConnectionHealth } from '../../reducers/Connection'
 import { green, orange, red } from '@material-ui/core/colors'
-import { StyleRulesCallback, withStyles } from '@material-ui/core/styles'
+import { withStyles, Theme } from '@material-ui/core/styles'
 import { Tooltip } from '@material-ui/core'
 
-const styles: StyleRulesCallback = theme => ({
+const styles = (theme: Theme) => ({
   offline: {
     color: red[700],
   },
   online: {
-    color: green[500],
+    color: green[400],
   },
   connecting: {
     color: orange[600],
   },
+  icon: {
+    boxShadow: theme.shadows[2]
+      .split('),')
+      .map(s => `inset ${s}`)
+      .join('),'),
+    padding: '6px',
+    borderRadius: '50%',
+    backgroundColor: '#eee',
+    width: '35px',
+    height: '35px',
+  },
 })
 
 interface Props {
   classes: any
   connected: boolean
   health?: ConnectionHealth
+  withBackground?: boolean
 }
 
 class ConnectionHealthIndicator extends React.Component<Props, {}> {
@@ -32,13 +44,15 @@ class ConnectionHealthIndicator extends React.Component<Props, {}> {
 
   public render() {
     const { classes, health, connected } = this.props
-    if (!health || !connected) {
+    if (!health || !connected) {
       return null
     }
 
     return (
       <Tooltip title={`Connection health "${health}"`}>
-        <DeviceHubOutlined className={classes[health]} />
+        <div style={{ display: 'inherit' }}>
+          <DeviceHubOutlined className={`${[classes[health]]} ${this.props.withBackground ? classes.icon : ''}`} />
+        </div>
       </Tooltip>
     )
   }
@@ -47,7 +61,7 @@ class ConnectionHealthIndicator extends React.Component<Props, {}> {
 const mapStateToProps = (state: AppState) => {
   return {
     health: state.connection.health,
-    connected: state.connection.connected || state.connection.connecting,
+    connected: state.connection.connected || state.connection.connecting,
   }
 }
 

app/src/components/helper/Copy.tsx

@@ -0,0 +1,69 @@
+import * as React from 'react'
+import Check from '@material-ui/icons/Check'
+import CustomIconButton from './CustomIconButton'
+import FileCopy from '@material-ui/icons/FileCopy'
+import { bindActionCreators } from 'redux'
+import { connect } from 'react-redux'
+import { globalActions } from '../../actions'
+
+const copy = require('copy-text-to-clipboard')
+
+interface Props {
+  value: string
+  actions: {
+    global: typeof globalActions
+  }
+}
+
+interface State {
+  didCopy: boolean
+}
+
+class Copy extends React.Component<Props, State> {
+  constructor(props: Props) {
+    super(props)
+    this.state = { didCopy: false }
+  }
+
+  private handleClick = (event: React.MouseEvent) => {
+    event.stopPropagation()
+
+    copy(this.props.value)
+    this.props.actions.global.showNotification('Copied to clipboard')
+    this.setState({ didCopy: true })
+    setTimeout(() => {
+      this.setState({ didCopy: false })
+    }, 1500)
+  }
+
+  public render() {
+    const icon = !this.state.didCopy ? (
+      <FileCopy fontSize="inherit" />
+    ) : (
+      <Check fontSize="inherit" style={{ cursor: 'default' }} />
+    )
+
+    return (
+      <span>
+        <span style={{ fontSize: '16px' }}>
+          <CustomIconButton onClick={this.handleClick} tooltip="Copy to clipboard">
+            {icon}
+          </CustomIconButton>
+        </span>
+      </span>
+    )
+  }
+}
+
+const mapDispatchToProps = (dispatch: any) => {
+  return {
+    actions: {
+      global: bindActionCreators(globalActions, dispatch),
+    },
+  }
+}
+
+export default connect(
+  undefined,
+  mapDispatchToProps
+)(Copy)

app/src/components/helper/CustomIconButton.tsx

@@ -1,16 +1,23 @@
 import * as React from 'react'
-import { IconButton } from '@material-ui/core'
+import { IconButton, Tooltip } from '@material-ui/core'
 import { Theme, withStyles } from '@material-ui/core/styles'
 
 interface Props {
-  onClick: any,
+  onClick: any
+  tooltip: string
   classes: any
+  style?: React.CSSProperties
 }
 
 const styles = (theme: Theme) => ({
   button: {
     padding: '6px',
     fontSize: '1.2em',
+    width: '32px',
+    height: '32px',
+  },
+  label: {
+    marginTop: '-2px',
   },
 })
 
@@ -19,16 +26,20 @@ class CustomIconButton extends React.Component<Props, {}> {
     super(props)
   }
 
-  public render() {
-    return (
-      <IconButton className={this.props.classes.button} onClick={this.onClick}>{this.props.children}</IconButton>
-    )
-  }
-
   private onClick = (event: React.MouseEvent) => {
     event.stopPropagation()
     this.props.onClick(event)
   }
+
+  public render() {
+    return (
+      <IconButton className={this.props.classes.button} style={this.props.style} onClick={this.onClick}>
+        <Tooltip title={this.props.tooltip} className={this.props.classes.label}>
+          <span>{this.props.children}</span>
+        </Tooltip>
+      </IconButton>
+    )
+  }
 }
 
 export default withStyles(styles)(CustomIconButton)

app/src/components/helper/DateFormatter.tsx

@@ -1,14 +1,66 @@
+import * as moment from 'moment'
 import * as React from 'react'
+import { AppState } from '../../reducers'
+import { connect } from 'react-redux'
 
 interface Props {
   date: Date
+  overrideLocale?: string
+  locale?: string
+  intervalSince?: Date
+}
+
+const unitMapping = {
+  s: 'seconds',
+  m: 'minutes',
+  h: 'hours',
 }
 
 class DateFormatter extends React.Component<Props, {}> {
+  private intervalSince(intervalSince: Date) {
+    const interval = intervalSince.getTime() - this.props.date.getTime()
+    const unit = this.unitForInterval(interval)
+    return `${Math.round(moment.duration(interval).as(unit) * 100) / 100} ${unitMapping[unit]}`
+  }
+
+  private legacyDate() {
+    return `${this.props.date.toLocaleDateString()} ${this.props.date.toLocaleTimeString()}`
+  }
+
+  private localizedDate(locale: string) {
+    return moment(this.props.date)
+      .locale(locale)
+      .format('L LTS')
+  }
+
+  private unitForInterval(milliseconds: number) {
+    const oneMinute = 1000 * 60
+    const oneHour = oneMinute * 60
+
+    if (milliseconds > oneHour * 2) {
+      return 'h'
+    }
+
+    if (milliseconds > oneMinute * 2) {
+      return 'm'
+    }
+
+    return 's'
+  }
 
   public render() {
-    return <span>{this.props.date.toLocaleDateString()} {this.props.date.toLocaleTimeString()}</span>
+    const locale = this.props.overrideLocale || this.props.locale
+    if (this.props.intervalSince) {
+      return <span>{this.intervalSince(this.props.intervalSince)}</span>
+    }
+    return <span>{locale ? this.localizedDate(locale) : this.legacyDate()}</span>
   }
 }
 
-export default DateFormatter
+const mapStateToProps = (state: AppState) => {
+  return {
+    locale: state.settings.get('timeLocale'),
+  }
+}
+
+export default connect(mapStateToProps)(DateFormatter)

app/src/components/helper/isElementInViewport.ts

@@ -4,9 +4,9 @@ declare const document: any
 export function isElementInViewport(el: any) {
   const rect = el.getBoundingClientRect()
   return (
-        rect.top >= 0 &&
-        rect.left >= 0 &&
-        rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && /*or $(window).height() */
-        rect.right <= (window.innerWidth || document.documentElement.clientWidth) /*or $(window).width() */
+    rect.top >= 0 &&
+    rect.left >= 0 &&
+    rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) /*or $(window).height() */ &&
+    rect.right <= (window.innerWidth || document.documentElement.clientWidth) /*or $(window).width() */
   )
 }

app/src/index.tsx

@@ -1,49 +1,39 @@
 import * as React from 'react'
 import * as ReactDOM from 'react-dom'
-import App from './App'
-import Demo from './components/demo'
-import reducers from './reducers'
+import App from './components/App'
+import Demo from './components/Demo'
+import reducers, { AppState } from './reducers'
 import reduxThunk from 'redux-thunk'
 import { applyMiddleware, compose, createStore } from 'redux'
 import { batchDispatchMiddleware } from 'redux-batched-actions'
-import { createMuiTheme, MuiThemeProvider } from '@material-ui/core/styles'
-import { Provider } from 'react-redux'
-import './tracking'
+import { connect, Provider } from 'react-redux'
+import { ThemeProvider } from '@material-ui/styles'
+import './utils/tracking'
+import { themes } from './theme'
 
+const composeEnhancers = (window as any).__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose
+const store = createStore(reducers, composeEnhancers(applyMiddleware(reduxThunk, batchDispatchMiddleware)))
 
+function ApplicationRenderer(props: { theme: 'light' | 'dark' }) {
+  return (
+    <ThemeProvider theme={props.theme === 'light' ? themes.lightTheme : themes.darkTheme}>
+      <App />
+      <Demo />
+    </ThemeProvider>
+  )
+}
 
-
-const composeEnhancers = /*(window as any).__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || */ compose
-const store = createStore(
-  reducers,
-  composeEnhancers(
-    applyMiddleware(
-      reduxThunk,
-      batchDispatchMiddleware,
-    ),
-  ),
-)
-
-const theme = createMuiTheme({
-  palette: {
-    type: 'dark',
-  },
-})
-
-setTimeout(() => {
-  const splash = document.getElementById('splash')
-  if (splash) {
-    splash.style.animation = 'unsplash 0.5s ease-in 0s 1 normal forwards'
-    setTimeout(() => splash.remove(), 600)
+const mapStateToProps = (state: AppState) => {
+  return {
+    theme: state.settings.get('theme'),
   }
-}, 300)
+}
+
+const Application = connect(mapStateToProps)(ApplicationRenderer)
 
 ReactDOM.render(
-    <MuiThemeProvider theme={theme}>
-      <Provider store={store}>
-        <App />
-        <Demo />
-      </Provider>
-    </MuiThemeProvider>,
-    document.getElementById('app'),
+  <Provider store={store}>
+    <Application />
+  </Provider>,
+  document.getElementById('app')
 )

app/src/model/ConnectionOptions.ts

@@ -2,6 +2,11 @@ import { MqttOptions } from '../../../backend/src/DataSource'
 import { v4 } from 'uuid'
 const sha1 = require('sha1')
 
+export interface CertificateParameters {
+  name: string
+  /** @property data base64 encoded data */
+  data: string
+}
 export interface ConnectionOptions {
   type: 'mqtt'
   id: string
@@ -14,8 +19,9 @@ export interface ConnectionOptions {
   password?: string
   encryption: boolean
   certValidation: boolean
+  selfSignedCertificate?: CertificateParameters
   clientId?: string
-  subscriptions: string[]
+  subscriptions: Array<string>
 }
 
 export function toMqttConnection(options: ConnectionOptions): MqttOptions | undefined {
@@ -28,12 +34,14 @@ export function toMqttConnection(options: ConnectionOptions): MqttOptions | unde
     username: options.username,
     password: options.password,
     tls: options.encryption,
+    clientId: options.clientId,
     certValidation: options.certValidation,
     subscriptions: options.subscriptions,
+    certificateAuthority: options.selfSignedCertificate ? options.selfSignedCertificate.data : undefined,
   }
 }
 
-export function generateClienId() {
+function generateClientId() {
   const clientIdSha = sha1(`${Math.random()}`).slice(0, 8)
   return `mqtt-explorer-${clientIdSha}`
 }
@@ -41,7 +49,7 @@ export function generateClienId() {
 export function createEmptyConnection(): ConnectionOptions {
   return {
     certValidation: true,
-    clientId: generateClienId(),
+    clientId: generateClientId(),
     id: v4() as string,
     name: 'new connection',
     encryption: false,
@@ -57,11 +65,12 @@ export function createEmptyConnection(): ConnectionOptions {
 
 export function makeDefaultConnections() {
   return {
-    'iot.eclipse.org': {
+    // remember: there was also iot.eclipse.org once
+    'mqtt.eclipse.org': {
       ...createEmptyConnection(),
-      id: 'iot.eclipse.org',
-      name: 'iot.eclipse.org',
-      host: 'iot.eclipse.org',
+      id: 'mqtt.eclipse.org',
+      name: 'mqtt.eclipse.org',
+      host: 'mqtt.eclipse.org',
     },
     'test.mosquitto.org': {
       ...createEmptyConnection(),

app/src/model/LegacyConnectionSettings.ts

@@ -17,7 +17,7 @@ export function clearLegacyConnectionOptions() {
   window.localStorage.setItem('connectionSettings', '')
 }
 
-export function loadLegacyConnectionOptions(): {[s: string]: ConnectionOptions} | {} {
+export function loadLegacyConnectionOptions(): { [s: string]: ConnectionOptions } | {} {
   const legacySettingsString = window.localStorage.getItem('connectionSettings')
   if (!legacySettingsString) {
     return {}
@@ -30,7 +30,7 @@ export function loadLegacyConnectionOptions(): {[s: string]: ConnectionOptions}
     return {}
   }
 
-  const protocolMap: {[s: string]: string} = {
+  const protocolMap: { [s: string]: string } = {
     'tcp://': 'mqtt',
     'ws://': 'ws',
     'mqtt://': 'mqtt',

app/src/model/TopicViewModel.ts

@@ -0,0 +1,24 @@
+import { Destroyable } from '../../../backend/src/Model/Destroyable'
+import { EventDispatcher } from '../../../events'
+
+export class TopicViewModel implements Destroyable {
+  private selected: boolean
+  public change = new EventDispatcher<void, TopicViewModel>()
+
+  public constructor() {
+    this.selected = false
+  }
+
+  public destroy() {
+    this.change.removeAllListeners()
+  }
+
+  public isSelected() {
+    return this.selected
+  }
+
+  public setSelected(selected: boolean) {
+    this.selected = selected
+    this.change.dispatch()
+  }
+}