| videos=true |
| page.title=Videos |
| @jd:body |
| |
| <script src="http://swfobject.googlecode.com/svn/trunk/swfobject/swfobject.js" type="text/javascript"></script>
|
| <script src="{@docRoot}assets/jquery-history.js" type="text/javascript"></script> |
| <script type="text/javascript"> |
| // for debugging in FF, so other browsers ignore the console commands. |
| var console; |
| if (!console) console = { 'log': function() {} }; |
| |
| /* This 'playlist' object defines the playlist IDs for each tab. |
| * Each name inside 'playlist' corresponds to class names for the tab that the playlists belong to (eg: "googleioTab" and "googleioBox" divs). |
| * Each string in 'ids' is the ID of a YouTube playlist that belongs in the corresponding tab. |
| */ |
| var playlists = { |
| 'googleio' : { |
| 'ids': ["734A052F802C96B9"] |
| }, |
| 'about' : { |
| 'ids': ["D7C64411AF40DEA5","611F8C5DBF49CEC6"] |
| }, |
| 'developertips' : { |
| 'ids': ["43E15866EF0033A2"] |
| }, |
| 'developersandbox' : { |
| 'ids': ["77426907BBAD558E"] |
| } |
| }; |
| |
| /* Some playlists include the title in the description meta-data, so we need to account for this when building the thumbnail lists, so we don't show the title twice |
| * This string is read via indexOf(), so multiple IDs need only be comma-separated in this string. |
| */ |
| var playlistsWithTitleInDescription = "734A052F802C96B9"; |
| |
| /* This 'featured' object defines the Feature Videos list. |
| * Each playlist ID is paired with a custom video description. |
| */ |
| var featured = { |
| // Android 2.0 Release |
| 'opZ69P-0Jbc' : "The Android 2.0 platform adds exciting new user features and developer APIs. Here's an introduction to what's new.", |
| // How to Make your Android UI Fast.. |
| 'N6YdwzAvwOA' : "Make your user interface fast, with more efficient AdapterViews, better bitmap scaling, faster redrawing, ViewStub layouts, fewer Views, and more.", |
| // How Do I Code Thee? |
| 'GARMe7Km_gk' : "If you'd like to augment your Android applications with pieces written in JavaScript or native code, watch this video." |
| }; |
|
|
| /* When an event on the browser history occurs (back, forward, load), |
| * load the video found in the URL hash |
| */
|
| $(window).history(function(e, hash) {
|
| if (location.href.indexOf("#v=") != -1) {
|
| videoId = location.href.split("#v=");
|
| clickVideo(videoId[1]); // click the link with a matching class
|
| }
|
| }); |
| |
| /* Load a video into the player box. |
| * @param id The YouTube video ID |
| * @param title The video title to display in the player box (character escaped) |
| * @param autoplay Whether to automatically play the video |
| */ |
| function loadVideo(id, title, autoplay) { |
| if($("." + id).hasClass("noplay")) { |
| console.log("noplay"); |
| autoplay = false; |
| $("." + id).removeClass("noplay"); |
| } |
| swfobject.embedSWF('http://www.youtube.com/v/' + id + '&rel=1&border=0&fs=1&autoplay=' + |
| (autoplay?1:0), 'player', '500', '334', '9.0.0', false, false, {allowfullscreen: 'true'}); |
| $("#videoPlayerTitle").html("<h2>" + unescape(title) + "</h2>"); |
|
|
| $.history.add('v=' + id); // add the current video to the browser history |
| document.getElementById("doc-content").scrollTop = 0; // scroll the window to the top |
| } |
| |
| /* Draw all videos from a playlist into a 'videoPreviews' list |
| * @param data The feed data returned from the youtube request |
| */ |
| function renderPlaylist(data) { |
| var MAX_DESC_LENGTH = 390; // the length at which we will trim the description |
| var feed = data.feed; |
| var entries = feed.entry || []; |
| var playlistId = feed.yt$playlistId.$t; |
| |
| var ul = $('<ul class="videoPreviews" />'); |
| |
| // Loop through each entry (each video) and add it to the 'videoPreviews' list |
| for (var i = 0; i < entries.length; i++) { |
| var entry = entries[i]; |
| |
| var title = entry.title.$t; |
| var id = entry.media$group.yt$videoid.$t; |
| var thumbUrl = entry.media$group.media$thumbnail[0].url; |
| var fullDescription = entry.media$group.media$description.$t; |
| var playerUrl = entry.media$group.media$content[0].url; |
| |
| // Check whether this playlist includes the video title inside the description meta-data, so we can remove it |
| if (playlistsWithTitleInDescription.indexOf(playlistId) != -1) { |
| var lines = fullDescription.split("\n"); |
| // If the first line includes the first 17 chars from the title, let's use the title from the description instead (because it's a more complete title) |
| // This accounts for, literally, "Google I/O 2009 -", which is (so far) the min AND max for properly identifying a title in the only playlist with titles in the description |
| if (lines[0].indexOf(title.slice(0,16)) != -1) { |
| h3Title = "<h3>" + lines[0] + "</h3>"; |
| if (lines[2].length < 30) lines = lines.slice(3); // also, if the second line is very short (the speaker name), slice it out too |
| else lines = lines.slice(1); // otherwise, slice after the first line |
| } |
| fullDescription = lines.join(""); |
| } |
| |
| var shortDescription = fullDescription.substr(0, MAX_DESC_LENGTH); |
| shortDescription += shortDescription.length == MAX_DESC_LENGTH ? "..." : ""; // add ellipsis if we've chopped the description |
| |
| var img = $('<img src="' + thumbUrl + '" width="120" height="90"/>'); |
| var a = $('<a class="' + id + '" href="#" onclick="loadVideo(\'' + id + '\',\'' + escape(title) + '\',true); return setSelected(this);" />'); |
| var pShortDescription = $('<p class="short">' + shortDescription + '</p>'); |
| var pFullDescription = $('<p class="full">' + fullDescription + '</p>'); |
| var h3Title = "<h3>" + title + "</h3>"; |
| var pToggle = "<p class='toggle'><a href='#' onclick='return toggleDescription(this)'><span class='more'>more</span><span class='less'>less</span></a></p>"; |
| var li = $('<li/>'); |
| |
| li.append(a); |
| a.append(img).append(h3Title).append(pShortDescription); |
| |
| // Add the full description and "more/less" toggle, if necessary |
| if (fullDescription.length > MAX_DESC_LENGTH) { |
| a.append(pFullDescription); |
| li.append(pToggle); |
| } |
| |
| ul.append(li); |
| } |
| |
| // Now add the 'videoPreviews' list to the page, and be sure we put it in the right tab |
| // This is the part that allows us to put multiple playlists in one tab |
| for (var x in playlists) { |
| var ids = playlists[x].ids; |
| for (var i in ids) { |
| if (ids[i] == playlistId) { |
| $("#"+x+"Box").append(ul); |
| break; |
| } |
| } |
| } |
| } |
| |
| /* Draw a featured video into the existing 'videoPreviews' list |
| * @param data The video data returned from the youtube request |
| */ |
| function renderFeatured(data) { |
| var MAX_TITLE_LENGTH = 48; |
| var entry = data.entry || []; |
| var id = entry.media$group.yt$videoid.$t; |
| var description = featured[id]; |
| var title = entry.title.$t; |
| var thumbUrl = entry.media$group.media$thumbnail[0].url; |
| var playerUrl = entry.media$group.media$content[0].url; |
| |
| var ellipsis = title.length > MAX_TITLE_LENGTH ? "..." : ""; |
| |
| var h3Title = "<h3>"+ title.substr(0,MAX_TITLE_LENGTH) + ellipsis + "</h3>"; |
| var img = $('<img src="' + thumbUrl + '" width="120" height="90"/>'); |
| var p = $('<p>' + description + '</p>'); |
| var a = $('<a class="' + id + '" href="#" onclick="loadVideo(\'' + id + '\',\'' + title + '\',true); return setSelected(this);" />'); |
| var li = $("<li/>"); |
| |
| a.append(h3Title).append(img).append(p); |
| li.append(a); |
| |
| $("#mainBodyRight .videoPreviews").append(li); |
| } |
| |
| /* Request the playlist feeds from YouTube */ |
| function showPlaylists() { |
| for (var x in playlists) { |
| var ids = playlists[x].ids; |
| for (var i in ids) { |
| var script = "<script type='text/javascript' src='http://gdata.youtube.com/feeds/api/playlists/" |
| + ids[i] + |
| "?v=2&alt=json-in-script&callback=renderPlaylist'><\/script>"; |
| $("body").append(script); |
| } |
| } |
| } |
| |
| /* Request the featured videos from YouTube */ |
| function showFeatured() { |
| for (var id in featured) { |
| var script = "<script type='text/javascript' src='http://gdata.youtube.com/feeds/api/videos/" |
| + id + |
| "?v=2&alt=json-in-script&callback=renderFeatured'><\/script>"; |
| $("body").append(script); |
| } |
| } |
| |
| /* Reveal a tab (playlist) box |
| * @param name The name of the tab |
| */ |
| function showBox(name) { |
| $("#"+name+"Box").addClass("selected").siblings().removeClass("selected"); |
| $("#"+name+"Tab").addClass("selected").siblings().removeClass("selected"); |
| return false; |
| } |
| |
| /* Highlight a video thumbnail, including all duplicates that there may be |
| * @param link The link <a> object that was clicked |
| */ |
| function setSelected(link) { |
| var videoId = $(link).attr("class"); |
| if (videoId.indexOf("selected") != -1) { // this means this video is already selected and playing, so bail out |
| return false; |
| } |
| $(".videoPreviews .selected").removeClass("selected"); |
| $("a." + videoId).addClass("selected").each( function (i) { |
| if ($(this).is(":hidden")) { |
| var boxName = $(this).parent().parent().parent().attr("id").split("Box"); |
| $("#"+boxName[0]+"Tab a").click(); |
| } |
| }); |
| return false; |
| } |
| |
| /* Reveal and hide the long/short descriptions for a video in the playlist |
| * @param link The link <a> object that was clicked |
| */ |
| function toggleDescription(link) { |
| var aToggle = $(link); |
| $("span", aToggle).toggle(); |
| var aDescription = $(">a", aToggle.parent().parent()); |
| $("p.short", aDescription).toggle(); |
| $("p.full", aDescription).toggle(); |
| if ($("span.less", aToggle).is(":visible")) { |
| aDescription.css("height", "auto"); |
| } else { |
| aDescription.css("height", "90px"); |
| } |
| return false; |
| } |
| |
| /* Add actions to the page onload event so that we load a video right away */ |
| addLoadEvent(function () {
|
| // if there's a video url in the hash, click that video
|
| if (location.href.indexOf("#v=") != -1) {
|
| var videoId = location.href.split("#v="); |
| clickVideo(videoId[1]); |
| } else { // otherwise, click the default video |
| clickDefaultVideo(); |
| } |
| }); |
| |
| |
| var clickVideoAttempts = 0; // Used with clickVideo() |
| |
| /* Click a video in order to load it and select it |
| * @param videoId The ID of the video to click |
| */ |
| function clickVideo(videoId) { |
| if ($("." + videoId).length != 0) { // if we find the video, click it and return |
| $("." + videoId).addClass("noplay"); // add class to indicate we should NOT autoplay (class removed by loadVideo)
|
| $("." + videoId + ":first").click(); |
| return; |
| } else { // if we don't find it, increment clickVideoAttempts |
| console.log("video NOT found: " + videoId); |
| clickVideoAttempts++; |
| } |
| |
| // if we don't find it after 20 attempts (2 seconds), click the first feature video
|
| if (clickVideoAttempts > 10) { |
| console.log("video never found, clicking default..."); |
| clickVideoAttempts = 0; |
| clickDefaultVideo(); |
| } else { // try again after 100 milliseconds |
| setTimeout('clickVideo("'+videoId+'")', 100); |
| } |
| } |
| |
| /* Click the default video that should be loaded on page load (the first video in the featured list) */ |
| function clickDefaultVideo() { |
| if ($("#mainBodyRight .videoPreviews a:first").length != 0) { |
| var videoId = $("#mainBodyRight .videoPreviews a:first").attr("class"); |
| $("." + videoId).addClass("noplay"); // add class to indicate we should NOT autoplay (class removed by loadVideo)
|
| $("." + videoId + ":first").click(); |
| return; |
| } else { // if we don't find it, increment clickVideoAttempts |
| console.log("default video NOT found"); |
| clickVideoAttempts++; |
| } |
| |
| // if we don't find it after 50 attempts (5 seconds), just fail
|
| if (clickVideoAttempts > 50) { |
| console.log("default video never found..."); |
| } else { // try again after 100 milliseconds |
| setTimeout('clickDefaultVideo()', 100); |
| } |
| } |
| </script> |
| |
| <div id="mainBodyFixed"> |
| |
| <div id="mainBodyLeft" class="videoPlayer" > |
| <div id="videoPlayerBox"> |
| <div id="videoBorder"> |
| <div id="videoPlayerTitle"></div> |
| <div id="objectWrapper"> |
| <object id="player"></object> |
| </div> |
| </div> |
| </div> |
| </div><!-- end mainBodyLeft --> |
| |
| <div id="mainBodyRight" class="videoPlayer"> |
| <h2>Featured Videos</h2> |
| <ul class="videoPreviews"></ul> |
| </div><!-- end mainBodyRight --> |
| |
| <ul id="videoTabs"> |
| <li id="aboutTab" class="selected"><a onclick="return showBox('about');" href="#">About the Platform</a></li> |
| <li id="developertipsTab"><a onclick="return showBox('developertips');" href="#">Developer Tips</a></li> |
| <li id="googleioTab"><a onclick="return showBox('googleio');" href="#">Google I/O Sessions</a></li> |
| <li id="developersandboxTab"><a onclick="return showBox('developersandbox');" href="#">Developer Sandbox</a></li> |
| </ul> |
| |
| <div id="videos"> |
| <div id="aboutBox" class="selected"></div> |
| <div id="developertipsBox"></div> |
| <div id="googleioBox"></div> |
| <div id="developersandboxBox"></div> |
| </div> |
| |
| </div><!-- end mainBodyFixed --> |
| |
| <script type="text/javascript"> |
| // Initialization actions |
| showFeatured(); // load featured videos |
| showPlaylists(); // load playlists |
| </script> |
| |
| |