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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> |
| 5 |
| 6 <script src=../../media-controls.js></script> |
| 7 <script src=../../media-file.js></script> |
| 8 <script src=../../video-test.js></script> |
| 9 <script> |
| 10 var testTrack; |
| 11 var region; |
| 12 var container; |
| 13 var totalVisibleLines; |
| 14 |
| 15 var seekTimes = [0.2, 0.5, 1.0, 2.3, 3.0]; |
| 16 var crtSeekTime = 0; |
| 17 |
| 18 function countVisibleLines(cueElement) |
| 19 { |
| 20 var cueRect = cueElement.getBoundingClientRect(); |
| 21 var regionRect = region.getBoundingClientRect(); |
| 22 |
| 23 var linesMatch = cueElement.textContent.match(/\n/g); |
| 24 var linesCount = 1 + (linesMatch == null ? 0 : linesMatch.length); |
| 25 var lineHeight = cueRect.height / linesCount; |
| 26 |
| 27 var visibleLines = 0; |
| 28 for (i = 0; i < linesCount; ++i) { |
| 29 var lineTop = cueRect.top + i * lineHeight; |
| 30 var lineBottom = cueRect.top + (i+1) * lineHeight; |
| 31 |
| 32 if (lineTop >= regionRect.top && lineBottom <= regionRect.bottom) |
| 33 visibleLines++; |
| 34 } |
| 35 |
| 36 return visibleLines; |
| 37 } |
| 38 |
| 39 function testRegionsDisplay() |
| 40 { |
| 41 testTrack = video.textTracks[0]; |
| 42 |
| 43 consoleWrite("** The text track has only one region **"); |
| 44 testExpected("testTrack.regions.length", 1); |
| 45 |
| 46 try { |
| 47 region = textTrackDisplayElement(video, 'region'); |
| 48 container = textTrackDisplayElement(video, 'region-container'); |
| 49 } catch(e) { |
| 50 consoleWrite(e); |
| 51 } |
| 52 |
| 53 consoleWrite("<br>** Inspecting cues displayed within region**"); |
| 54 |
| 55 waitForEvent("seeked", inspectRegionTree); |
| 56 seekVideo(); |
| 57 } |
| 58 |
| 59 function seekVideo() |
| 60 { |
| 61 consoleWrite(""); |
| 62 run("video.currentTime = " + seekTimes[crtSeekTime++]); |
| 63 } |
| 64 |
| 65 function inspectRegionTree() |
| 66 { |
| 67 consoleWrite("Total cues in region: " + container.children.length); |
| 68 totalVisibleLines = 0; |
| 69 |
| 70 for (var i = 0; i < container.children.length; ++i) { |
| 71 var cue = container.children[i]; |
| 72 var cueVisibleLines = countVisibleLines(cue); |
| 73 consoleWrite("Cue content is: " + cue.textContent); |
| 74 consoleWrite("Cue lines visible from this cue: " + cueVisibleLin
es); |
| 75 |
| 76 totalVisibleLines += cueVisibleLines; |
| 77 } |
| 78 |
| 79 testExpected("totalVisibleLines <= testTrack.regions[0].height", tru
e); |
| 80 |
| 81 if (crtSeekTime == seekTimes.length) |
| 82 endTest(); |
| 83 else |
| 84 seekVideo(); |
| 85 } |
| 86 |
| 87 function startTest() |
| 88 { |
| 89 if (!window.TextTrackRegion) { |
| 90 failTest(); |
| 91 return; |
| 92 } |
| 93 |
| 94 findMediaElement(); |
| 95 |
| 96 video.src = findMediaFile('video', '../../content/test'); |
| 97 waitForEvent('canplaythrough', testRegionsDisplay); |
| 98 } |
| 99 |
| 100 </script> |
| 101 </head> |
| 102 <body> |
| 103 <p>Tests default rendering for TextTrackCues that belong to a TextTrackR
egion.</p> |
| 104 <video controls> |
| 105 <track src="../captions-webvtt/captions-regions.vtt" kind="captions"
default onload="startTest()"> |
| 106 </video> |
| 107 </body> |
| 108 </html> |
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Chromium Code Reviews
Issue 25798003:
Enable WebVTT regions for runtime testing, updated tests and minor fixes (Closed)
Base URL: svn://svn.chromium.org/blink/trunk