Added dynamic contrast-mode toggle

client/app/scripts/actions/app-actions.js

@@ -643,6 +643,17 @@ export function receiveNotFound(nodeId) {
   };
 }
 
+export function toggleContrastMode(enabled) {
+  return (dispatch, getState) => {
+    dispatch({
+      type: ActionTypes.TOGGLE_CONTRAST_MODE,
+      enabled,
+    });
+
+    updateRoute(getState);
+  };
+}
+
 export function route(urlState) {
   return (dispatch, getState) => {
     dispatch({
@@ -664,6 +675,10 @@ export function route(urlState) {
       state.get('nodeDetails'),
       dispatch
     );
+
+    if (urlState.contrastMode) {
+      dispatch(toggleContrastMode(true));
+    }
   };
 }
 

client/app/scripts/components/app.js

@@ -13,7 +13,7 @@ import Topologies from './topologies';
 import TopologyOptions from './topology-options';
 import { getApiDetails, getTopologies } from '../utils/web-api-utils';
 import { focusSearch, pinNextMetric, hitBackspace, hitEnter, hitEsc, unpinMetric,
-  selectMetric, toggleHelp, toggleGridMode } from '../actions/app-actions';
+  selectMetric, toggleHelp, toggleGridMode, toggleContrastMode } from '../actions/app-actions';
 import Details from './details';
 import Nodes from './nodes';
 import GridModeSelector from './grid-mode-selector';
@@ -153,11 +153,12 @@ function mapStateToProps(state) {
     showingMetricsSelector: state.get('availableCanvasMetrics').count() > 0,
     showingNetworkSelector: state.get('availableNetworks').count() > 0,
     showingTerminal: state.get('controlPipes').size > 0,
-    urlState: getUrlState(state)
+    urlState: getUrlState(state),
+    contrastMode: state.get('contrastMode')
   };
 }
 
-
 export default connect(
-  mapStateToProps
+  mapStateToProps,
+  dispatch => ({ dispatch, toggleContrastMode })
 )(App);

client/app/scripts/components/footer.js

@@ -4,19 +4,22 @@ import moment from 'moment';
 
 import Plugins from './plugins';
 import { getUpdateBufferSize } from '../utils/update-buffer-utils';
-import { contrastModeUrl, isContrastMode } from '../utils/contrast-utils';
 import { clickDownloadGraph, clickForceRelayout, clickPauseUpdate,
-  clickResumeUpdate, toggleHelp, toggleTroubleshootingMenu } from '../actions/app-actions';
-import { basePathSlash } from '../utils/web-api-utils';
+  clickResumeUpdate, toggleHelp, toggleTroubleshootingMenu, toggleContrastMode } from '../actions/app-actions';
 
 class Footer extends React.Component {
-  render() {
-    const { hostname, updatePausedAt, version, versionUpdate } = this.props;
-    const contrastMode = isContrastMode();
+  constructor(props, context) {
+    super(props, context);
+
+    this.handleContrastClick = this.handleContrastClick.bind(this);
+  }
+  handleContrastClick(e) {
+    e.preventDefault();
+    this.props.toggleContrastMode(!this.props.contrastMode);
+  }
+  render() {
+    const { hostname, updatePausedAt, version, versionUpdate, contrastMode } = this.props;
 
-    // link url to switch contrast with current UI state
-    const otherContrastModeUrl = contrastMode
-      ? basePathSlash(window.location.pathname) : contrastModeUrl;
     const otherContrastModeTitle = contrastMode
       ? 'Switch to normal contrast' : 'Switch to high contrast';
     const forceRelayoutTitle = 'Force re-layout (might reduce edge crossings, '
@@ -76,7 +79,7 @@ class Footer extends React.Component {
             title={forceRelayoutTitle}>
             <span className="fa fa-refresh" />
           </a>
-          <a className="footer-icon" href={otherContrastModeUrl} title={otherContrastModeTitle}>
+          <a onClick={this.handleContrastClick} className="footer-icon" title={otherContrastModeTitle}>
             <span className="fa fa-adjust" />
           </a>
           <a
@@ -101,7 +104,8 @@ function mapStateToProps(state) {
     hostname: state.get('hostname'),
     updatePausedAt: state.get('updatePausedAt'),
     version: state.get('version'),
-    versionUpdate: state.get('versionUpdate')
+    versionUpdate: state.get('versionUpdate'),
+    contrastMode: state.get('contrastMode')
   };
 }
 
@@ -113,6 +117,7 @@ export default connect(
     clickPauseUpdate,
     clickResumeUpdate,
     toggleHelp,
-    toggleTroubleshootingMenu
+    toggleTroubleshootingMenu,
+    toggleContrastMode
   }
 )(Footer);

client/app/scripts/constants/action-types.js

@@ -58,6 +58,7 @@ const ACTION_TYPES = [
   'SET_RECEIVED_NODES_DELTA',
   'SORT_ORDER_CHANGED',
   'SET_GRID_MODE',
+  'TOGGLE_CONTRAST_MODE'
 ];
 
 export default zipObject(ACTION_TYPES, ACTION_TYPES);

client/app/scripts/contrast-main.js

@@ -1,24 +0,0 @@
-import 'babel-polyfill';
-import React from 'react';
-import ReactDOM from 'react-dom';
-import { Provider } from 'react-redux';
-
-import '../styles/contrast.scss';
-import '../images/favicon.ico';
-import configureStore from './stores/configureStore';
-
-const store = configureStore();
-
-function renderApp() {
-  const App = require('./components/app').default;
-  ReactDOM.render((
-    <Provider store={store}>
-      <App />
-    </Provider>
-  ), document.getElementById('app'));
-}
-
-renderApp();
-if (module.hot) {
-  module.hot.accept('./components/app', renderApp);
-}

client/app/scripts/reducers/root.js

@@ -1,3 +1,4 @@
+/* eslint-disable import/no-webpack-loader-syntax, import/no-unresolved */
 import debug from 'debug';
 import { size, each, includes } from 'lodash';
 import { fromJS, is as isDeepEqual, List as makeList, Map as makeMap,
@@ -30,6 +31,7 @@ const topologySorter = topology => topology.get('rank');
 export const initialState = makeMap({
   availableCanvasMetrics: makeList(),
   availableNetworks: makeList(),
+  contrastMode: false,
   controlPipes: makeOrderedMap(), // pipeId -> controlPipe
   controlStatus: makeMap(),
   currentTopology: null,
@@ -721,6 +723,33 @@ export function rootReducer(state = initialState, action) {
       return state.set('showingTroubleshootingMenu', !state.get('showingTroubleshootingMenu'));
     }
 
+    case ActionTypes.TOGGLE_CONTRAST_MODE: {
+      const modules = [
+        require.resolve('../../styles/main.scss'),
+        require.resolve('../../styles/contrast.scss')
+      ];
+      // Bust the webpack require cache to for a re-download of the stylesheets
+      modules.forEach((i) => {
+        const children = require.cache[i] ? require.cache[i].children : [];
+        children.forEach((c) => {
+          delete require.cache[c];
+        });
+        delete require.cache[i];
+      });
+
+      if (action.enabled) {
+        require.ensure([], () => {
+          require('../../styles/contrast.scss');
+        });
+      } else {
+        require.ensure([], () => {
+          require('../../styles/main.scss');
+        });
+      }
+
+      return state.set('contrastMode', action.enabled);
+    }
+
     default: {
       return state;
     }

client/app/scripts/utils/contrast-utils.js

@@ -1,7 +1,5 @@
-export const contrastModeUrl = 'contrast.html';
-
-const contrastMode = window.location.pathname.indexOf(contrastModeUrl) > -1;
+import { parseHashState } from './router-utils';
 
 export function isContrastMode() {
-  return contrastMode;
+  return parseHashState().contrastMode;
 }

client/app/scripts/utils/router-utils.js

@@ -19,11 +19,18 @@ function encodeURL(url) {
     .replace(new RegExp(SLASH, 'g'), SLASH_REPLACEMENT);
 }
 
-function decodeURL(url) {
+export function decodeURL(url) {
   return decodeURIComponent(url.replace(new RegExp(SLASH_REPLACEMENT, 'g'), SLASH))
     .replace(new RegExp(PERCENT_REPLACEMENT, 'g'), PERCENT);
 }
 
+export function parseHashState(hash = window.location.hash) {
+  const urlStateString = hash
+    .replace('#!/state/', '')
+    .replace('#!/', '') || '{}';
+  return JSON.parse(decodeURL(urlStateString));
+}
+
 function shouldReplaceState(prevState, nextState) {
   // Opening a new terminal while an existing one is open.
   const terminalToTerminal = (prevState.controlPipe && nextState.controlPipe);
@@ -50,7 +57,8 @@ export function getUrlState(state) {
     gridSortedBy: state.get('gridSortedBy'),
     gridSortedDesc: state.get('gridSortedDesc'),
     topologyId: state.get('currentTopologyId'),
-    topologyOptions: state.get('topologyOptions').toJS() // all options
+    topologyOptions: state.get('topologyOptions').toJS(), // all options,
+    contrastMode: state.get('contrastMode')
   };
 
   if (state.get('showingNetworks')) {
@@ -67,10 +75,7 @@ export function updateRoute(getState) {
   const state = getUrlState(getState());
   const stateUrl = encodeURL(JSON.stringify(state));
   const dispatch = false;
-  const urlStateString = window.location.hash
-    .replace('#!/state/', '')
-    .replace('#!/', '') || '{}';
-  const prevState = JSON.parse(decodeURL(urlStateString));
+  const prevState = parseHashState();
 
   // back up state in storage as well
   storageSet(STORAGE_STATE_KEY, stateUrl);

client/webpack.local.config.js

@@ -2,7 +2,6 @@ const webpack = require('webpack');
 const autoprefixer = require('autoprefixer');
 const path = require('path');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
-
 /**
  * This is the Webpack configuration file for local development.
  * It contains local-specific configuration which includes:
@@ -28,10 +27,6 @@ module.exports = {
       './app/scripts/main.dev',
       'webpack-hot-middleware/client'
     ],
-    'contrast-app': [
-      './app/scripts/contrast-main',
-      'webpack-hot-middleware/client'
-    ],
     'terminal-app': [
       './app/scripts/terminal-main',
       'webpack-hot-middleware/client'
@@ -45,7 +40,7 @@ module.exports = {
   // Used by Webpack Dev Middleware
   output: {
     publicPath: '',
-    path: '/',
+    path: path.join(__dirname, 'build'),
     filename: '[name].js'
   },
 
@@ -56,11 +51,6 @@ module.exports = {
     new webpack.HotModuleReplacementPlugin(),
     new webpack.NoErrorsPlugin(),
     new webpack.IgnorePlugin(/^\.\/locale$/, [/moment$/]),
-    new HtmlWebpackPlugin({
-      chunks: ['vendors', 'contrast-app'],
-      template: 'app/html/index.html',
-      filename: 'contrast.html'
-    }),
     new HtmlWebpackPlugin({
       chunks: ['vendors', 'terminal-app'],
       template: 'app/html/index.html',

client/webpack.production.config.js

@@ -31,7 +31,6 @@ module.exports = {
 
   entry: {
     app: './app/scripts/main',
-    'contrast-app': './app/scripts/contrast-main',
     'terminal-app': './app/scripts/terminal-main',
     // keep only some in here, to make vendors and app bundles roughly same size
     vendors: ['babel-polyfill', 'classnames', 'immutable',
@@ -112,12 +111,6 @@ module.exports = {
       }
     }),
     new ExtractTextPlugin('style-[name]-[chunkhash].css'),
-    new HtmlWebpackPlugin({
-      hash: true,
-      chunks: ['vendors', 'contrast-app'],
-      template: 'app/html/index.html',
-      filename: 'contrast.html'
-    }),
     new HtmlWebpackPlugin({
       hash: true,
       chunks: ['vendors', 'terminal-app'],