LayoutTests/media/video-preload.html

   1 <!DOCTYPE HTML>
   2
   3 <html>
   4     <head>
   5         <script src=media-file.js></script>
   6         <script src=video-test.js></script>
   7
   8         <script>
   9             var timer = null;
  10             var movieInfo =
  11             {
  12                 current : -1,
  13                 movies :
  14                 [
  15                     {
  16                         // should not buffer, 'preload' is 'none'
  17                         preload : "none",
  18                         shouldBuffer : false,
  19                         autoPlay : false,
  20                         description : "until 'play()' is called",
  21                     },
  22                     {
  23                         preload : "metadata",
  24                         shouldBuffer : true,
  25                         autoPlay : false,
  26                         description : "",
  27                     },
  28                     {
  29                         preload : "auto",
  30                         shouldBuffer : true,
  31                         autoPlay : false,
  32                         description : "",
  33                     },
  34                     {
  35                         // should buffer because 'autoplay' is set
  36                         preload : "none",
  37                         shouldBuffer : true,
  38                         autoPlay : true,
  39                         description : " because of 'autoplay'",
  40                     },
  41                 ]
  42             };
  43             var timer = null;
  44
  45             function checkLoad()
  46             {
  47                 var movie = movieInfo.movies[movieInfo.current];
  48
  49                 logResult(true, "did not buffer automatically");
  50
  51                 // start playback, which should force data to load
  52                 movie.shouldBuffer = true;
  53                 run("video.play()");
  54             }
  55
  56             function loadedmetadata()
  57             {
  58                 var movie = movieInfo.movies[movieInfo.current];
  59
  60                 clearTimeout(timer);
  61                 logResult(movie.shouldBuffer, "buffered automatically");
  62                 openNextMovie();
  63             }
  64
  65             function setupAttribute(attr, value)
  66             {
  67                 if (value)
  68                     run("video.setAttribute('" + attr + "', '" + value + "')");
  69                 else
  70                     run("video.removeAttribute('" + attr + "')");
  71             }
  72
  73             function openNextMovie()
  74             {
  75                 consoleWrite("");
  76
  77                 movieInfo.current++;
  78                 if (movieInfo.current >= movieInfo.movies.length)
  79                 {
  80                     endTest();
  81                     return;
  82                 }
  83
  84                 var movie = movieInfo.movies[movieInfo.current];
  85                 var url = findMediaFile("video", "content/test");
  86                 var desc = "Will load with <em>'preload=" + movie.preload + "'</em>"
  87                             + ", <b>should" + (movie.shouldBuffer ? "" : " not") + " </b> buffer automatically "
  88                             + movie.description;
  89                 consoleWrite(desc);
  90
  91                 setupAttribute('preload', movie.preload);
  92                 setupAttribute('autoplay', movie.autoPlay);
  93
  94                 video.src = url;
  95                 if (movieInfo.current > 0)
  96                     video.load();
  97                 if (!movie.shouldBuffer)
  98                     timer = setTimeout(checkLoad, 200);
  99             }
 100
 101             function start()
 102             {
 103                 findMediaElement();
 104
 105                 waitForEvent("error");
 106                 waitForEvent("loadstart");
 107                 waitForEvent("play");
 108                 waitForEvent('loadedmetadata', loadedmetadata);
 109
 110                 openNextMovie();
 111             }
 112
 113         </script>
 114     </head>
 115
 116     <body onload="start()">
 117         <p>Test to see if media loads automatically when 'preload' is specified.</p>
 118         <video controls ></video>
 119     </body>
 120 </html>