Use module pattern
This commit is contained in:
Pierre Rudloff
parent
e20ab6b708
commit
22b2c10e0c
1 changed files with 85 additions and 96 deletions
181
js/cast.js
181
js/cast.js
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@ -1,111 +1,100 @@
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/*global chrome*/
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/*jslint browser: true */
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var launchBtn, disabledBtn, stopBtn;
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var session;
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function receiverListener(e) {
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var castModule = (function () {
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'use strict';
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return (e === chrome.cast.ReceiverAvailability.AVAILABLE);
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}
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var launchBtn, disabledBtn, stopBtn, session;
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function onMediaDiscovered() {
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'use strict';
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if (launchBtn) {
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stopBtn.classList.remove('cast_hidden');
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launchBtn.classList.add('cast_hidden');
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function receiverListener(e) {
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return (e === chrome.cast.ReceiverAvailability.AVAILABLE);
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}
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}
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function onStopCast() {
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'use strict';
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stopBtn.classList.add('cast_hidden');
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launchBtn.classList.remove('cast_hidden');
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}
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function updateListener() {
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'use strict';
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if (session.status !== chrome.cast.SessionStatus.CONNECTED) {
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onStopCast();
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function onMediaDiscovered() {
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if (launchBtn) {
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stopBtn.classList.remove('cast_hidden');
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launchBtn.classList.add('cast_hidden');
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}
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}
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}
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function sessionListener(e) {
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'use strict';
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session = e;
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session.addMediaListener(onMediaDiscovered.bind(this, 'addMediaListener'));
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session.addUpdateListener(updateListener.bind(this));
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if (session.media.length !== 0) {
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onMediaDiscovered('onRequestSessionSuccess', session.media[0]);
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}
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}
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function stopCast() {
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'use strict';
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session.stop(onStopCast);
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}
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function onMediaError() {
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'use strict';
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stopCast();
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}
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function onRequestSessionSuccess(e) {
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'use strict';
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session = e;
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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);
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session.loadMedia(request, onMediaDiscovered.bind(this, 'loadMedia'), onMediaError);
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}
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function onLaunchError(e) {
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'use strict';
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throw e.description;
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}
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function launchCast() {
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'use strict';
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chrome.cast.requestSession(onRequestSessionSuccess, onLaunchError);
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}
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function onInitSuccess() {
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'use strict';
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launchBtn = document.getElementById('cast_btn_launch');
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disabledBtn = document.getElementById('cast_disabled');
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stopBtn = document.getElementById('cast_btn_stop');
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if (launchBtn) {
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disabledBtn.classList.add('cast_hidden');
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function onStopCast() {
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stopBtn.classList.add('cast_hidden');
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launchBtn.classList.remove('cast_hidden');
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launchBtn.addEventListener('click', launchCast, false);
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stopBtn.addEventListener('click', stopCast, false);
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}
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}
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function onError(e) {
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'use strict';
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throw e.code;
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}
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function initializeCastApi() {
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'use strict';
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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);
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chrome.cast.initialize(apiConfig, onInitSuccess, onError);
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}
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function loadCastApi(loaded, errorInfo) {
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'use strict';
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if (loaded) {
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initializeCastApi();
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} else {
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throw errorInfo;
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function updateListener() {
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if (session.status !== chrome.cast.SessionStatus.CONNECTED) {
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onStopCast();
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}
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}
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}
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function initCast() {
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'use strict';
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var intro = document.getElementById('download_intro');
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if (intro) {
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intro.insertAdjacentHTML('beforeend', '<img class="cast_icon" id="cast_disabled" src="img/ic_media_route_disabled_holo_light.png" alt="" title="Google Cast is not supported on this browser." /> <img class="cast_btn cast_hidden cast_icon" id="cast_btn_launch" src="img/ic_media_route_off_holo_light.png" title="Cast to ChromeCast" alt="Google Cast™" /> <img src="img/ic_media_route_on_holo_light.png" alt="Casting to ChromeCast…" title="Stop casting" id="cast_btn_stop" class="cast_btn cast_hidden cast_icon" />');
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window.__onGCastApiAvailable = loadCastApi;
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function sessionListener(e) {
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session = e;
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session.addMediaListener(onMediaDiscovered.bind(this, 'addMediaListener'));
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session.addUpdateListener(updateListener.bind(this));
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if (session.media.length !== 0) {
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onMediaDiscovered('onRequestSessionSuccess', session.media[0]);
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}
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}
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}
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window.addEventListener('load', initCast, false);
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function stopCast() {
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session.stop(onStopCast);
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}
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function onMediaError() {
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stopCast();
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}
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function onRequestSessionSuccess(e) {
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session = e;
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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);
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session.loadMedia(request, onMediaDiscovered.bind(this, 'loadMedia'), onMediaError);
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}
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function onLaunchError(e) {
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throw e.description;
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}
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function launchCast() {
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chrome.cast.requestSession(onRequestSessionSuccess, onLaunchError);
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}
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function onInitSuccess() {
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launchBtn = document.getElementById('cast_btn_launch');
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disabledBtn = document.getElementById('cast_disabled');
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stopBtn = document.getElementById('cast_btn_stop');
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if (launchBtn) {
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disabledBtn.classList.add('cast_hidden');
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launchBtn.classList.remove('cast_hidden');
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launchBtn.addEventListener('click', launchCast, false);
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stopBtn.addEventListener('click', stopCast, false);
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}
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}
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function onError(e) {
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throw e.code;
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}
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function initializeCastApi() {
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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);
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chrome.cast.initialize(apiConfig, onInitSuccess, onError);
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}
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function loadCastApi(loaded, errorInfo) {
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if (loaded) {
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initializeCastApi();
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} else {
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throw errorInfo;
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}
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}
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return {
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init: function () {
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var intro = document.getElementById('download_intro');
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if (intro) {
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intro.insertAdjacentHTML('beforeend', '<img class="cast_icon" id="cast_disabled" src="img/ic_media_route_disabled_holo_light.png" alt="" title="Google Cast is not supported on this browser." /> <img class="cast_btn cast_hidden cast_icon" id="cast_btn_launch" src="img/ic_media_route_off_holo_light.png" title="Cast to ChromeCast" alt="Google Cast™" /> <img src="img/ic_media_route_on_holo_light.png" alt="Casting to ChromeCast…" title="Stop casting" id="cast_btn_stop" class="cast_btn cast_hidden cast_icon" />');
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window.__onGCastApiAvailable = loadCastApi;
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}
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}
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};
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}());
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window.addEventListener('load', castModule.init, false);
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