Optimize CSS and JS

js/cast.js

@@ -0,0 +1,97 @@
+/*global chrome*/
+/*jslint devel: true, browser: true */
+var launchBtn, disabledBtn, stopBtn;
+var session, currentMedia;
+
+function receiverListener(e) {
+    'use strict';
+    console.log('receiverListener', e);
+}
+
+function onMediaDiscovered(how, media) {
+    'use strict';
+    console.log('onMediaDiscovered', how);
+    currentMedia = media;
+    if (launchBtn) {
+        stopBtn.classList.remove('cast_hidden');
+        launchBtn.classList.add('cast_hidden');
+    }
+}
+
+function sessionListener(e) {
+    'use strict';
+    session = e;
+    session.addMediaListener(onMediaDiscovered.bind(this, 'addMediaListener'));
+    if (session.media.length !== 0) {
+        onMediaDiscovered('onRequestSessionSuccess', session.media[0]);
+    }
+}
+
+function onStopCast() {
+    'use strict';
+    stopBtn.classList.add('cast_hidden');
+    launchBtn.classList.remove('cast_hidden');
+}
+
+function stopCast() {
+    'use strict';
+    session.stop(onStopCast);
+}
+
+function onMediaError() {
+    'use strict';
+    console.log('onMediaError');
+    stopCast();
+}
+
+function onRequestSessionSuccess(e) {
+    'use strict';
+    session = e;
+    var videoLink = document.getElementById('video_link'), videoURL = videoLink.dataset.video, mediaInfo = new chrome.cast.media.MediaInfo(videoURL, 'video/' + videoLink.dataset.ext), request = new chrome.cast.media.LoadRequest(mediaInfo);
+    session.loadMedia(request, onMediaDiscovered.bind(this, 'loadMedia'), onMediaError);
+}
+
+function onLaunchError(e) {
+    'use strict';
+    console.log('onLaunchError', e.description);
+}
+
+function launchCast() {
+    'use strict';
+    chrome.cast.requestSession(onRequestSessionSuccess, onLaunchError);
+}
+
+function onInitSuccess() {
+    'use strict';
+    launchBtn = document.getElementById('cast_btn_launch');
+    disabledBtn = document.getElementById('cast_disabled');
+    stopBtn = document.getElementById('cast_btn_stop');
+    if (launchBtn) {
+        disabledBtn.classList.add('cast_hidden');
+        launchBtn.classList.remove('cast_hidden');
+        launchBtn.addEventListener('click', launchCast, false);
+        stopBtn.addEventListener('click', stopCast, false);
+    }
+}
+
+function onError() {
+    'use strict';
+    console.log('onError');
+}
+
+function initializeCastApi() {
+    'use strict';
+    var sessionRequest = new chrome.cast.SessionRequest(chrome.cast.media.DEFAULT_MEDIA_RECEIVER_APP_ID), apiConfig = new chrome.cast.ApiConfig(sessionRequest, sessionListener, receiverListener, chrome.cast.AutoJoinPolicy.ORIGIN_SCOPED);
+    chrome.cast.initialize(apiConfig, onInitSuccess, onError);
+}
+
+function loadCastApi(loaded, errorInfo) {
+    'use strict';
+    if (loaded) {
+        initializeCastApi();
+    } else {
+        console.log(errorInfo);
+    }
+}
+
+window['__onGCastApiAvailable'] = loadCastApi;