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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/203913">203913</a></dd>
<dt>Author</dt> <dd>n_wang@apple.com</dd>
<dt>Date</dt> <dd>2016-07-29 12:11:29 -0700 (Fri, 29 Jul 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>AX: Media controls accessibility improvement
https://bugs.webkit.org/show_bug.cgi?id=160223
<rdar://problem/27558003>
Reviewed by Eric Carlson.
Source/WebCore:
Changes in this patch:
1. Added a change observer for volume slider so that it will handle accessibility
increment/decrement functions correctly.
2. Update the timer div's aria-label when time changes.
3. Added a keydown handler for left/right arrow adjusting the timeline, so that the
value increment/decrement in a reasonable way.
4. Changed the mute button's role to checkbox since it only has on/off states.
Test: media/media-controls-accessibility.html
* Modules/mediacontrols/mediaControlsApple.js:
(Controller.prototype.createControls):
(Controller.prototype.updatePictureInPictureButton):
(Controller.prototype.timelineStepFromVideoDuration):
(Controller.prototype.incrementTimelineValue):
(Controller.prototype.decrementTimelineValue):
(Controller.prototype.showInlinePlaybackPlaceholderWhenSafe):
(Controller.prototype.handleTimelineMouseUp):
(Controller.prototype.handleTimelineKeyDown):
(Controller.prototype.handleMuteButtonClicked):
(Controller.prototype.handleMinButtonClicked):
(Controller.prototype.handleMaxButtonClicked):
(Controller.prototype.updateVideoVolume):
(Controller.prototype.handleVolumeSliderInput):
(Controller.prototype.handleVolumeSliderChange):
(Controller.prototype.handleVolumeSliderMouseDown):
(Controller.prototype.updateTime):
(Controller.prototype.updateControlsWhileScrubbing):
(Controller.prototype.updateVolume):
LayoutTests:
* accessibility/mac/video-volume-slider-accessibility-expected.txt:
* accessibility/mac/video-volume-slider-accessibility.html:
* accessibility/media-emits-object-replacement-expected.txt:
* media/media-controls-accessibility-expected.txt: Added.
* media/media-controls-accessibility.html: Added.
* platform/efl/accessibility/media-element-expected.txt:
* platform/efl/accessibility/media-emits-object-replacement-expected.txt:
* platform/gtk/accessibility/media-element-expected.txt:
* platform/gtk/accessibility/media-emits-object-replacement-expected.txt:
* platform/mac/accessibility/media-element-expected.txt:</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsaccessibilitymacvideovolumeslideraccessibilityexpectedtxt">trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility-expected.txt</a></li>
<li><a href="#trunkLayoutTestsaccessibilitymacvideovolumeslideraccessibilityhtml">trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility.html</a></li>
<li><a href="#trunkLayoutTestsaccessibilitymediaemitsobjectreplacementexpectedtxt">trunk/LayoutTests/accessibility/media-emits-object-replacement-expected.txt</a></li>
<li><a href="#trunkLayoutTestsplatformeflaccessibilitymediaelementexpectedtxt">trunk/LayoutTests/platform/efl/accessibility/media-element-expected.txt</a></li>
<li><a href="#trunkLayoutTestsplatformeflaccessibilitymediaemitsobjectreplacementexpectedtxt">trunk/LayoutTests/platform/efl/accessibility/media-emits-object-replacement-expected.txt</a></li>
<li><a href="#trunkLayoutTestsplatformgtkaccessibilitymediaelementexpectedtxt">trunk/LayoutTests/platform/gtk/accessibility/media-element-expected.txt</a></li>
<li><a href="#trunkLayoutTestsplatformgtkaccessibilitymediaemitsobjectreplacementexpectedtxt">trunk/LayoutTests/platform/gtk/accessibility/media-emits-object-replacement-expected.txt</a></li>
<li><a href="#trunkLayoutTestsplatformmacaccessibilitymediaelementexpectedtxt">trunk/LayoutTests/platform/mac/accessibility/media-element-expected.txt</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreModulesmediacontrolsmediaControlsApplejs">trunk/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsmediamediacontrolsaccessibilityexpectedtxt">trunk/LayoutTests/media/media-controls-accessibility-expected.txt</a></li>
<li><a href="#trunkLayoutTestsmediamediacontrolsaccessibilityhtml">trunk/LayoutTests/media/media-controls-accessibility.html</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/ChangeLog        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2016-07-29 Nan Wang <n_wang@apple.com>
+
+ AX: Media controls accessibility improvement
+ https://bugs.webkit.org/show_bug.cgi?id=160223
+ <rdar://problem/27558003>
+
+ Reviewed by Eric Carlson.
+
+ * accessibility/mac/video-volume-slider-accessibility-expected.txt:
+ * accessibility/mac/video-volume-slider-accessibility.html:
+ * accessibility/media-emits-object-replacement-expected.txt:
+ * media/media-controls-accessibility-expected.txt: Added.
+ * media/media-controls-accessibility.html: Added.
+ * platform/efl/accessibility/media-element-expected.txt:
+ * platform/efl/accessibility/media-emits-object-replacement-expected.txt:
+ * platform/gtk/accessibility/media-element-expected.txt:
+ * platform/gtk/accessibility/media-emits-object-replacement-expected.txt:
+ * platform/mac/accessibility/media-element-expected.txt:
+
</ins><span class="cx"> 2016-07-29 Daniel Bates <dabates@apple.com>
</span><span class="cx">
</span><span class="cx"> Unskip some media tests on iOS when run in WebKitTestRunner
</span></span></pre></div>
<a id="trunkLayoutTestsaccessibilitymacvideovolumeslideraccessibilityexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility-expected.txt (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility-expected.txt        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -5,7 +5,7 @@
</span><span class="cx">
</span><span class="cx">
</span><span class="cx"> PASS slider.valueDescription is 'AXValueDescription: 100%'
</span><del>-PASS slider.intValue.toFixed(2) is '0.95'
</del><ins>+PASS slider.valueDescription is 'AXValueDescription: 95%'
</ins><span class="cx"> PASS successfullyParsed is true
</span><span class="cx">
</span><span class="cx"> TEST COMPLETE
</span></span></pre></div>
<a id="trunkLayoutTestsaccessibilitymacvideovolumeslideraccessibilityhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility.html (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility.html        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/accessibility/mac/video-volume-slider-accessibility.html        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -40,7 +40,7 @@
</span><span class="cx">
</span><span class="cx"> // Then decrement the slider and check the step is 0.05.
</span><span class="cx"> slider.decrement();
</span><del>- shouldBe("slider.intValue.toFixed(2)", "'0.95'");
</del><ins>+ shouldBe("slider.valueDescription", "'AXValueDescription: 95%'");
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> </script>
</span></span></pre></div>
<a id="trunkLayoutTestsaccessibilitymediaemitsobjectreplacementexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/accessibility/media-emits-object-replacement-expected.txt (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/accessibility/media-emits-object-replacement-expected.txt        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/accessibility/media-emits-object-replacement-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -17,7 +17,7 @@
</span><span class="cx"> AXRole: AXGroup AXValue:
</span><span class="cx"> AXRole: AXSlider AXValue: 1
</span><span class="cx"> AXRole: AXValueIndicator AXValue: 1
</span><del>- AXRole: AXButton AXValue:
</del><ins>+ AXRole: AXCheckBox AXValue: 0
</ins><span class="cx"> AXRole: AXStaticText AXValue: b
</span><span class="cx"> AXRole: AXGroup AXValue:
</span><span class="cx"> AXRole: AXGroup AXValue:
</span><span class="lines">@@ -34,7 +34,7 @@
</span><span class="cx"> AXRole: AXGroup AXValue:
</span><span class="cx"> AXRole: AXSlider AXValue: 1
</span><span class="cx"> AXRole: AXValueIndicator AXValue: 1
</span><del>- AXRole: AXButton AXValue:
</del><ins>+ AXRole: AXCheckBox AXValue: 0
</ins><span class="cx"> AXRole: AXStaticText AXValue: b
</span><span class="cx"> AXRole: AXGroup AXValue:
</span><span class="cx"> This tests ensures that if video or audio tags are used, they will emit an object replacement character in a range for string operation.
</span></span></pre></div>
<a id="trunkLayoutTestsmediamediacontrolsaccessibilityexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/media/media-controls-accessibility-expected.txt (0 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/media/media-controls-accessibility-expected.txt         (rev 0)
+++ trunk/LayoutTests/media/media-controls-accessibility-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -0,0 +1,27 @@
</span><ins>+
+This tests that media controls have correct accessibility information.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS successfullyParsed is true
+
+TEST COMPLETE
+elapsedTimer.description: AXDescription: Elapsed 00:00
+remainingTimer.description: AXDescription: Remaining -00:06
+
+muteButton.description: AXDescription: Mute
+muteButton.role: AXRole: AXCheckBox
+muteButton.stringValue: AXValue: 0
+press muteButton
+muteButton.stringValue: AXValue: 1
+
+timeline.value: 0.5
+timeline.value: 0.0
+
+RUN(video.load())
+EVENT(canplaythrough)
+EVENT(seeked)
+EVENT(seeked)
+END OF TEST
+
</ins></span></pre></div>
<a id="trunkLayoutTestsmediamediacontrolsaccessibilityhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/media/media-controls-accessibility.html (0 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/media/media-controls-accessibility.html         (rev 0)
+++ trunk/LayoutTests/media/media-controls-accessibility.html        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -0,0 +1,78 @@
</span><ins>+<!DOCTYPE html>
+<html>
+<video id="video" controls></video>
+<p id="description"></p>
+<div id="console"></div>
+<head>
+<script src="../resources/js-test-pre.js"></script>
+<script src="media-file.js"></script>
+<script src="media-controls.js"></script>
+<script src="video-test.js"></script>
+</head>
+
+<script>
+
+description("This tests that media controls have correct accessibility information.");
+
+if (window.accessibilityController) {
+ testRunner.overridePreference("WebKitTabToLinksPreferenceKey", 1);
+ video.src = findMediaFile("video", "content/test");
+
+ var videoElement;
+ var elapsedTimer, remainingTimer, timeline, muteButton;
+ var rightArrow = true;
+ run("video.load()");
+ waitForEvent("canplaythrough", function () {
+ videoElement = accessibilityController.accessibleElementById("video");
+ // Elapsed and remaining timer have the right ax label.
+ elapsedTimer = videoElement.childAtIndex(0).childAtIndex(3);
+ remainingTimer = videoElement.childAtIndex(0).childAtIndex(5);
+ debug("elapsedTimer.description: " + elapsedTimer.description);
+ debug("remainingTimer.description: " + remainingTimer.description + "\n");
+
+ // Mute button should be a checkbox with on/off state.
+ muteButton = videoElement.childAtIndex(0).childAtIndex(9);
+ debug("muteButton.description: " + muteButton.description);
+ debug("muteButton.role: " + muteButton.role);
+ debug("muteButton.stringValue: " + muteButton.stringValue);
+ debug("press muteButton");
+ muteButton.press();
+ debug("muteButton.stringValue: " + muteButton.stringValue + "\n");
+
+ // Left/Right arrow key should have 0.5 second step on timeline.
+ checkTimeLineValue(rightArrow);
+ });
+
+ waitForEvent("seeked", function () {
+ var timeline = mediaControlsElement(internals.shadowRoot(video).firstChild.firstChild, '-webkit-media-controls-timeline');
+ if (!timeline)
+ throw "Failed to find -webkit-media-controls-timeline";
+ debug("timeline.value: " + parseFloat(timeline.value).toFixed(1));
+ if (rightArrow) {
+ rightArrow = false;
+ checkTimeLineValue(rightArrow);
+ } else {
+ debug("");
+ endTest();
+ }
+ });
+}
+
+function checkTimeLineValue(isRightArrow)
+{
+ var timeline = mediaControlsElement(internals.shadowRoot(video).firstChild.firstChild, '-webkit-media-controls-timeline');
+ if (!timeline)
+ throw "Failed to find -webkit-media-controls-timeline";
+
+ timeline.focus();
+ if (isRightArrow) {
+ eventSender.keyDown("rightArrow");
+ } else {
+ eventSender.keyDown("leftArrow");
+ }
+}
+
+</script>
+
+<script src="../resources/js-test-post.js"></script>
+</html>
</ins><span class="cx">\ No newline at end of file
</span></span></pre></div>
<a id="trunkLayoutTestsplatformeflaccessibilitymediaelementexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/efl/accessibility/media-element-expected.txt (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/efl/accessibility/media-element-expected.txt        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/platform/efl/accessibility/media-element-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -21,7 +21,7 @@
</span><span class="cx"> role: AXRole: AXButton
</span><span class="cx">
</span><span class="cx">
</span><del>- title: AXTitle: Elapsed
</del><ins>+ title: AXTitle: Elapsed 00:00
</ins><span class="cx"> role: AXRole: AXTimer
</span><span class="cx">
</span><span class="cx">
</span><span class="lines">@@ -33,7 +33,7 @@
</span><span class="cx"> role: AXRole: AXSlider
</span><span class="cx">
</span><span class="cx">
</span><del>- title: AXTitle: Remaining
</del><ins>+ title: AXTitle: Remaining -00:06
</ins><span class="cx"> role: AXRole: AXTimer
</span><span class="cx">
</span><span class="cx">
</span><span class="lines">@@ -46,7 +46,7 @@
</span><span class="cx">
</span><span class="cx">
</span><span class="cx"> title: AXTitle: Mute
</span><del>- role: AXRole: AXButton
</del><ins>+ role: AXRole: AXCheckbox
</ins><span class="cx">
</span><span class="cx">
</span><span class="cx"> title: AXTitle: Display Full Screen
</span></span></pre></div>
<a id="trunkLayoutTestsplatformeflaccessibilitymediaemitsobjectreplacementexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/efl/accessibility/media-emits-object-replacement-expected.txt (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/efl/accessibility/media-emits-object-replacement-expected.txt        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/platform/efl/accessibility/media-emits-object-replacement-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -7,7 +7,7 @@
</span><span class="cx"> AXRole: AXVideo
</span><span class="cx"> AXRole: AXToolbar
</span><span class="cx"> AXRole: AXToolbar
</span><del>- AXRole: AXButton
</del><ins>+ AXRole: AXCheckBox
</ins><span class="cx"> AXRole: AXSlider
</span><span class="cx"> AXRole: AXGroup AXValue: <\n>
</span><span class="cx"> AXRole: AXSection AXValue: a <obj> b
</span><span class="lines">@@ -14,7 +14,7 @@
</span><span class="cx"> AXRole: AXAudio
</span><span class="cx"> AXRole: AXToolbar
</span><span class="cx"> AXRole: AXToolbar
</span><del>- AXRole: AXButton
</del><ins>+ AXRole: AXCheckBox
</ins><span class="cx"> AXRole: AXSlider
</span><span class="cx"> AXRole: AXSection AXValue: End of test
</span><span class="cx"> This tests ensures that if video or audio tags are used, they will emit an object replacement character in a range for string operation.
</span></span></pre></div>
<a id="trunkLayoutTestsplatformgtkaccessibilitymediaelementexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/gtk/accessibility/media-element-expected.txt (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/gtk/accessibility/media-element-expected.txt        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/platform/gtk/accessibility/media-element-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -21,7 +21,7 @@
</span><span class="cx"> role: AXRole: AXSlider
</span><span class="cx">
</span><span class="cx">
</span><del>- title: AXTitle: Remaining
</del><ins>+ title: AXTitle: Remaining -00:06
</ins><span class="cx"> role: AXRole: AXTimer
</span><span class="cx">
</span><span class="cx">
</span><span class="lines">@@ -30,7 +30,7 @@
</span><span class="cx">
</span><span class="cx">
</span><span class="cx"> title: AXTitle: Mute
</span><del>- role: AXRole: AXButton
</del><ins>+ role: AXRole: AXCheckbox
</ins><span class="cx">
</span><span class="cx">
</span><span class="cx"> title: AXTitle: Volume
</span></span></pre></div>
<a id="trunkLayoutTestsplatformgtkaccessibilitymediaemitsobjectreplacementexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/gtk/accessibility/media-emits-object-replacement-expected.txt (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/gtk/accessibility/media-emits-object-replacement-expected.txt        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/platform/gtk/accessibility/media-emits-object-replacement-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -6,7 +6,7 @@
</span><span class="cx"> AXRole: AXSection AXValue: a <obj> b
</span><span class="cx"> AXRole: AXVideo
</span><span class="cx"> AXRole: AXToolbar
</span><del>- AXRole: AXButton
</del><ins>+ AXRole: AXCheckBox
</ins><span class="cx"> AXRole: AXSlider
</span><span class="cx"> AXRole: AXTimer AXValue: 00:00
</span><span class="cx"> AXRole: AXSection AXValue: <\n>
</span><span class="lines">@@ -13,7 +13,7 @@
</span><span class="cx"> AXRole: AXSection AXValue: a <obj> b
</span><span class="cx"> AXRole: AXAudio
</span><span class="cx"> AXRole: AXToolbar
</span><del>- AXRole: AXButton
</del><ins>+ AXRole: AXCheckBox
</ins><span class="cx"> AXRole: AXSlider
</span><span class="cx"> AXRole: AXTimer AXValue: 00:00
</span><span class="cx"> AXRole: AXSection AXValue: End of test
</span></span></pre></div>
<a id="trunkLayoutTestsplatformmacaccessibilitymediaelementexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/mac/accessibility/media-element-expected.txt (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/mac/accessibility/media-element-expected.txt        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/LayoutTests/platform/mac/accessibility/media-element-expected.txt        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -34,7 +34,7 @@
</span><span class="cx"> role: AXRole: AXButton
</span><span class="cx">
</span><span class="cx">
</span><del>- description: AXDescription: Elapsed
</del><ins>+ description: AXDescription: Elapsed 00:00
</ins><span class="cx"> role: AXRole: AXGroup
</span><span class="cx"> subrole: AXSubrole: AXApplicationTimer
</span><span class="cx">
</span><span class="lines">@@ -55,7 +55,7 @@
</span><span class="cx"> role: AXRole: AXValueIndicator
</span><span class="cx">
</span><span class="cx">
</span><del>- description: AXDescription: Remaining
</del><ins>+ description: AXDescription: Remaining -00:06
</ins><span class="cx"> role: AXRole: AXGroup
</span><span class="cx"> subrole: AXSubrole: AXApplicationTimer
</span><span class="cx">
</span><span class="lines">@@ -85,7 +85,7 @@
</span><span class="cx">
</span><span class="cx">
</span><span class="cx"> description: AXDescription: Mute
</span><del>- role: AXRole: AXButton
</del><ins>+ role: AXRole: AXCheckBox
</ins><span class="cx">
</span><span class="cx">
</span><span class="cx"> description: AXDescription: Display Full Screen
</span></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/Source/WebCore/ChangeLog        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -1,3 +1,41 @@
</span><ins>+2016-07-29 Nan Wang <n_wang@apple.com>
+
+ AX: Media controls accessibility improvement
+ https://bugs.webkit.org/show_bug.cgi?id=160223
+ <rdar://problem/27558003>
+
+ Reviewed by Eric Carlson.
+
+ Changes in this patch:
+ 1. Added a change observer for volume slider so that it will handle accessibility
+ increment/decrement functions correctly.
+ 2. Update the timer div's aria-label when time changes.
+ 3. Added a keydown handler for left/right arrow adjusting the timeline, so that the
+ value increment/decrement in a reasonable way.
+ 4. Changed the mute button's role to checkbox since it only has on/off states.
+
+ Test: media/media-controls-accessibility.html
+
+ * Modules/mediacontrols/mediaControlsApple.js:
+ (Controller.prototype.createControls):
+ (Controller.prototype.updatePictureInPictureButton):
+ (Controller.prototype.timelineStepFromVideoDuration):
+ (Controller.prototype.incrementTimelineValue):
+ (Controller.prototype.decrementTimelineValue):
+ (Controller.prototype.showInlinePlaybackPlaceholderWhenSafe):
+ (Controller.prototype.handleTimelineMouseUp):
+ (Controller.prototype.handleTimelineKeyDown):
+ (Controller.prototype.handleMuteButtonClicked):
+ (Controller.prototype.handleMinButtonClicked):
+ (Controller.prototype.handleMaxButtonClicked):
+ (Controller.prototype.updateVideoVolume):
+ (Controller.prototype.handleVolumeSliderInput):
+ (Controller.prototype.handleVolumeSliderChange):
+ (Controller.prototype.handleVolumeSliderMouseDown):
+ (Controller.prototype.updateTime):
+ (Controller.prototype.updateControlsWhileScrubbing):
+ (Controller.prototype.updateVolume):
+
</ins><span class="cx"> 2016-07-29 Mark Lam <mark.lam@apple.com>
</span><span class="cx">
</span><span class="cx"> Remove an unused line of code.
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesmediacontrolsmediaControlsApplejs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js (203912 => 203913)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js        2016-07-29 18:58:23 UTC (rev 203912)
+++ trunk/Source/WebCore/Modules/mediacontrols/mediaControlsApple.js        2016-07-29 19:11:29 UTC (rev 203913)
</span><span class="lines">@@ -421,6 +421,7 @@
</span><span class="cx"> this.listenFor(timeline, 'mousemove', this.handleTimelineMouseMove);
</span><span class="cx"> this.listenFor(timeline, 'mousedown', this.handleTimelineMouseDown);
</span><span class="cx"> this.listenFor(timeline, 'mouseup', this.handleTimelineMouseUp);
</span><ins>+ this.listenFor(timeline, 'keydown', this.handleTimelineKeyDown);
</ins><span class="cx"> timeline.step = .01;
</span><span class="cx">
</span><span class="cx"> this.timelineContextName = "_webkit-media-controls-timeline-" + this.host.generateUUID();
</span><span class="lines">@@ -447,6 +448,8 @@
</span><span class="cx"> var muteButton = this.controls.muteButton = document.createElement('button');
</span><span class="cx"> muteButton.setAttribute('pseudo', '-webkit-media-controls-mute-button');
</span><span class="cx"> muteButton.setAttribute('aria-label', this.UIString('Mute'));
</span><ins>+ // Make the mute button a checkbox since it only has on/off states.
+ muteButton.setAttribute('role', 'checkbox');
</ins><span class="cx"> this.listenFor(muteButton, 'click', this.handleMuteButtonClicked);
</span><span class="cx">
</span><span class="cx"> var minButton = this.controls.minButton = document.createElement('button');
</span><span class="lines">@@ -477,6 +480,7 @@
</span><span class="cx"> volume.max = 1;
</span><span class="cx"> volume.step = .05;
</span><span class="cx"> this.listenFor(volume, 'input', this.handleVolumeSliderInput);
</span><ins>+ this.listenFor(volume, 'change', this.handleVolumeSliderChange);
</ins><span class="cx"> this.listenFor(volume, 'mousedown', this.handleVolumeSliderMouseDown);
</span><span class="cx"> this.listenFor(volume, 'mouseup', this.handleVolumeSliderMouseUp);
</span><span class="cx">
</span><span class="lines">@@ -863,7 +867,37 @@
</span><span class="cx"> } else
</span><span class="cx"> this.controls.pictureInPictureButton.classList.add(this.ClassNames.hidden);
</span><span class="cx"> },
</span><ins>+
+ timelineStepFromVideoDuration: function()
+ {
+ var step;
+ var duration = this.video.duration;
+ if (duration <= 10)
+ step = .5;
+ else if (duration <= 60)
+ step = 1;
+ else if (duration <= 600)
+ step = 10;
+ else if (duration <= 3600)
+ step = 30;
+ else
+ step = 60;
+
+ return step;
+ },
+
+ incrementTimelineValue: function()
+ {
+ var value = this.video.currentTime + this.timelineStepFromVideoDuration();
+ return value > this.video.duration ? this.video.duration : value;
+ },
</ins><span class="cx">
</span><ins>+ decrementTimelineValue: function()
+ {
+ var value = this.video.currentTime - this.timelineStepFromVideoDuration();
+ return value < 0 ? 0 : value;
+ },
+
</ins><span class="cx"> showInlinePlaybackPlaceholderWhenSafe: function() {
</span><span class="cx"> if (this.presentationMode() != 'picture-in-picture')
</span><span class="cx"> return;
</span><span class="lines">@@ -1122,12 +1156,22 @@
</span><span class="cx"> {
</span><span class="cx"> this.scrubbing = false;
</span><span class="cx"> },
</span><ins>+
+ handleTimelineKeyDown: function(event)
+ {
+ if (event.keyCode == this.KeyCodes.left)
+ this.controls.timeline.value = this.decrementTimelineValue();
+ else if (event.keyCode == this.KeyCodes.right)
+ this.controls.timeline.value = this.incrementTimelineValue();
+ },
</ins><span class="cx">
</span><span class="cx"> handleMuteButtonClicked: function(event)
</span><span class="cx"> {
</span><span class="cx"> this.video.muted = !this.video.muted;
</span><span class="cx"> if (this.video.muted)
</span><del>- this.controls.muteButton.setAttribute('aria-label', this.UIString('Unmute'));
</del><ins>+ this.controls.muteButton.setAttribute('aria-checked', 'true');
+ else
+ this.controls.muteButton.setAttribute('aria-checked', 'false');
</ins><span class="cx"> this.drawVolumeBackground();
</span><span class="cx"> return true;
</span><span class="cx"> },
</span><span class="lines">@@ -1141,7 +1185,7 @@
</span><span class="cx"> {
</span><span class="cx"> if (this.video.muted) {
</span><span class="cx"> this.video.muted = false;
</span><del>- this.controls.muteButton.setAttribute('aria-label', this.UIString('Mute'));
</del><ins>+ this.controls.muteButton.setAttribute('aria-checked', 'false');
</ins><span class="cx"> }
</span><span class="cx"> this.video.volume = 0;
</span><span class="cx"> return true;
</span><span class="lines">@@ -1151,21 +1195,31 @@
</span><span class="cx"> {
</span><span class="cx"> if (this.video.muted) {
</span><span class="cx"> this.video.muted = false;
</span><del>- this.controls.muteButton.setAttribute('aria-label', this.UIString('Mute'));
</del><ins>+ this.controls.muteButton.setAttribute('aria-checked', 'false');
</ins><span class="cx"> }
</span><span class="cx"> this.video.volume = 1;
</span><span class="cx"> },
</span><span class="cx">
</span><del>- handleVolumeSliderInput: function(event)
</del><ins>+ updateVideoVolume: function()
</ins><span class="cx"> {
</span><span class="cx"> if (this.video.muted) {
</span><span class="cx"> this.video.muted = false;
</span><del>- this.controls.muteButton.setAttribute('aria-label', this.UIString('Mute'));
</del><ins>+ this.controls.muteButton.setAttribute('aria-checked', 'false');
</ins><span class="cx"> }
</span><span class="cx"> this.video.volume = this.controls.volume.value;
</span><del>- this.controls.volume.setAttribute('aria-valuetext', this.controls.volume.value * 100 + '%');
</del><ins>+ this.controls.volume.setAttribute('aria-valuetext', `${parseInt(this.controls.volume.value * 100)}%`);
+ },
+
+ handleVolumeSliderInput: function(event)
+ {
+ this.updateVideoVolume();
</ins><span class="cx"> this.drawVolumeBackground();
</span><span class="cx"> },
</span><ins>+
+ handleVolumeSliderChange: function(event)
+ {
+ this.updateVideoVolume();
+ },
</ins><span class="cx">
</span><span class="cx"> handleVolumeSliderMouseDown: function(event)
</span><span class="cx"> {
</span><span class="lines">@@ -1709,8 +1763,10 @@
</span><span class="cx"> var currentTime = this.video.currentTime;
</span><span class="cx"> var timeRemaining = currentTime - this.video.duration;
</span><span class="cx"> this.currentTimeClone.innerText = this.controls.currentTime.innerText = this.formatTime(currentTime);
</span><ins>+ this.controls.currentTime.setAttribute('aria-label', `${this.UIString('Elapsed')} ${this.formatTime(currentTime)}`);
</ins><span class="cx"> this.controls.timeline.value = this.video.currentTime;
</span><span class="cx"> this.remainingTimeClone.innerText = this.controls.remainingTime.innerText = this.formatTime(timeRemaining);
</span><ins>+ this.controls.remainingTime.setAttribute('aria-label', `${this.UIString('Remaining')} ${this.formatTime(timeRemaining)}`);
</ins><span class="cx"> },
</span><span class="cx">
</span><span class="cx"> updateControlsWhileScrubbing: function()
</span><span class="lines">@@ -2084,7 +2140,7 @@
</span><span class="cx"> this.controls.muteButton.classList.remove(this.ClassNames.muted);
</span><span class="cx"> this.controls.volume.value = this.video.volume;
</span><span class="cx"> }
</span><del>- this.controls.volume.setAttribute('aria-valuetext', this.controls.volume.value * 100 + '%');
</del><ins>+ this.controls.volume.setAttribute('aria-valuetext', `${parseInt(this.controls.volume.value * 100)}%`);
</ins><span class="cx"> this.drawVolumeBackground();
</span><span class="cx"> },
</span><span class="cx">
</span></span></pre>
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