[e] (0) Clarify what we mean by 'poster frame' of an animation.

Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=21296 Affected topics: Canvas, DOM APIs git-svn-id: http://svn.whatwg.org/webapps@7847 340c8d12-0b0e-0410-8428-c7bf67bfef74
whatwg · Apr 22, 2013 · d9bfbac · d9bfbac
1 parent d0d9b65
commit d9bfbac
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Showing 3 changed files with 30 additions and 18 deletions.
diff --git a/complete.html b/complete.html
@@ -35642,8 +35642,9 @@ <h6 id=image-sources-for-2d-rendering-contexts><span class=secno>4.8.11.2.9 </sp
   element's image must be used as the source image.</p>
 
   <p>Specifically, when a <code><a href=#canvasimagesource>CanvasImageSource</a></code> object represents an animated image in an
-  <code><a href=#htmlimageelement>HTMLImageElement</a></code>, the user agent must use the poster frame of the animation, or, if
-  there is no poster frame, the first frame of the animation, when rendering the image for
+  <code><a href=#htmlimageelement>HTMLImageElement</a></code>, the user agent must use the default image of the animation (the
+  one that the format defines is to be used when animation is not supported or is disabled), or, if
+  there is no such image, the first frame of the animation, when rendering the image for
   <code><a href=#canvasrenderingcontext2d>CanvasRenderingContext2D</a></code> APIs.</p>
 
   <p>When a <code><a href=#canvasimagesource>CanvasImageSource</a></code> object represents an <code><a href=#htmlvideoelement>HTMLVideoElement</a></code>, then
@@ -57107,6 +57108,7 @@ <h4 id=the-dialog-element><span class=secno>4.11.7 </span>The <dfn><code>dialog<
 
   </dl><div class=impl>
 
+<!--CLEANUP-->
   <p>When the <dfn id=dom-dialog-show title=dom-dialog-show><code>show()</code></dfn>
   method is invoked, the user agent must run the following steps:</p>
 
@@ -73698,8 +73700,9 @@ <h3 id=images><span class=secno>7.6 </span>Images</h3>
 
      <li><p>Let the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data be a copy of the <code><a href=#the-img-element>img</a></code>
      element's media data, <a href=#cropped-to-the-source-rectangle>cropped to the source rectangle</a>. If this is an animated
-     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the
-     animation's poster frame, or, if there is no poster frame, the first frame of the
+     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the default
+     image of the animation (the one that the format defines is to be used when animation is not
+     supported or is disabled), or, if there is no such image, the first frame of the
      animation.</li>
 
      <li><p>Return, but continue running these steps asynchronously.</li>
@@ -73801,8 +73804,9 @@ <h3 id=images><span class=secno>7.6 </span>Images</h3>
 
      <li><p>Let the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data be the image data read from the
      <code><a href=#blob>Blob</a></code> object, <a href=#cropped-to-the-source-rectangle>cropped to the source rectangle</a>. If this is an animated
-     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the
-     animation's poster frame, or, if there is no poster frame, the first frame of the
+     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the default
+     image of the animation (the one that the format defines is to be used when animation is not
+     supported or is disabled), or, if there is no such image, the first frame of the
      animation.</li>
 
      <li><p><a href=#queue-a-task>Queue a task</a> to invoke <var title="">callback</var> with the new

diff --git a/index b/index
@@ -35642,8 +35642,9 @@ try {
   element's image must be used as the source image.</p>
 
   <p>Specifically, when a <code><a href=#canvasimagesource>CanvasImageSource</a></code> object represents an animated image in an
-  <code><a href=#htmlimageelement>HTMLImageElement</a></code>, the user agent must use the poster frame of the animation, or, if
-  there is no poster frame, the first frame of the animation, when rendering the image for
+  <code><a href=#htmlimageelement>HTMLImageElement</a></code>, the user agent must use the default image of the animation (the
+  one that the format defines is to be used when animation is not supported or is disabled), or, if
+  there is no such image, the first frame of the animation, when rendering the image for
   <code><a href=#canvasrenderingcontext2d>CanvasRenderingContext2D</a></code> APIs.</p>
 
   <p>When a <code><a href=#canvasimagesource>CanvasImageSource</a></code> object represents an <code><a href=#htmlvideoelement>HTMLVideoElement</a></code>, then
@@ -57107,6 +57108,7 @@ dictionary <dfn id=relatedeventinit>RelatedEventInit</dfn> : <a href=#eventinit>
 
   </dl><div class=impl>
 
+<!--CLEANUP-->
   <p>When the <dfn id=dom-dialog-show title=dom-dialog-show><code>show()</code></dfn>
   method is invoked, the user agent must run the following steps:</p>
 
@@ -73698,8 +73700,9 @@ interface <dfn id=imagebitmapfactories>ImageBitmapFactories</dfn> {
 
      <li><p>Let the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data be a copy of the <code><a href=#the-img-element>img</a></code>
      element's media data, <a href=#cropped-to-the-source-rectangle>cropped to the source rectangle</a>. If this is an animated
-     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the
-     animation's poster frame, or, if there is no poster frame, the first frame of the
+     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the default
+     image of the animation (the one that the format defines is to be used when animation is not
+     supported or is disabled), or, if there is no such image, the first frame of the
      animation.</li>
 
      <li><p>Return, but continue running these steps asynchronously.</li>
@@ -73801,8 +73804,9 @@ interface <dfn id=imagebitmapfactories>ImageBitmapFactories</dfn> {
 
      <li><p>Let the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data be the image data read from the
      <code><a href=#blob>Blob</a></code> object, <a href=#cropped-to-the-source-rectangle>cropped to the source rectangle</a>. If this is an animated
-     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the
-     animation's poster frame, or, if there is no poster frame, the first frame of the
+     image, the <code><a href=#imagebitmap>ImageBitmap</a></code> object's bitmap data must only be taken from the default
+     image of the animation (the one that the format defines is to be used when animation is not
+     supported or is disabled), or, if there is no such image, the first frame of the
      animation.</li>
 
      <li><p><a href=#queue-a-task>Queue a task</a> to invoke <var title="">callback</var> with the new

diff --git a/source b/source
@@ -38738,8 +38738,9 @@ try {
   element's image must be used as the source image.</p>
 
   <p>Specifically, when a <code>CanvasImageSource</code> object represents an animated image in an
-  <code>HTMLImageElement</code>, the user agent must use the poster frame of the animation, or, if
-  there is no poster frame, the first frame of the animation, when rendering the image for
+  <code>HTMLImageElement</code>, the user agent must use the default image of the animation (the
+  one that the format defines is to be used when animation is not supported or is disabled), or, if
+  there is no such image, the first frame of the animation, when rendering the image for
   <code>CanvasRenderingContext2D</code> APIs.</p>
 
   <p>When a <code>CanvasImageSource</code> object represents an <code>HTMLVideoElement</code>, then
@@ -63383,6 +63384,7 @@ dictionary <dfn>RelatedEventInit</dfn> : <span>EventInit</span> {
 
   <div class="impl">
 
+<!--CLEANUP-->
   <p>When the <dfn title="dom-dialog-show"><code>show()</code></dfn>
   method is invoked, the user agent must run the following steps:</p>
 
@@ -82684,8 +82686,9 @@ interface <dfn>ImageBitmapFactories</dfn> {
 
      <li><p>Let the <code>ImageBitmap</code> object's bitmap data be a copy of the <code>img</code>
      element's media data, <span>cropped to the source rectangle</span>. If this is an animated
-     image, the <code>ImageBitmap</code> object's bitmap data must only be taken from the
-     animation's poster frame, or, if there is no poster frame, the first frame of the
+     image, the <code>ImageBitmap</code> object's bitmap data must only be taken from the default
+     image of the animation (the one that the format defines is to be used when animation is not
+     supported or is disabled), or, if there is no such image, the first frame of the
      animation.</p></li>
 
      <li><p>Return, but continue running these steps asynchronously.</p></li>
@@ -82807,8 +82810,9 @@ interface <dfn>ImageBitmapFactories</dfn> {
 
      <li><p>Let the <code>ImageBitmap</code> object's bitmap data be the image data read from the
      <code>Blob</code> object, <span>cropped to the source rectangle</span>. If this is an animated
-     image, the <code>ImageBitmap</code> object's bitmap data must only be taken from the
-     animation's poster frame, or, if there is no poster frame, the first frame of the
+     image, the <code>ImageBitmap</code> object's bitmap data must only be taken from the default
+     image of the animation (the one that the format defines is to be used when animation is not
+     supported or is disabled), or, if there is no such image, the first frame of the
      animation.</p></li>
 
      <li><p><span>Queue a task</span> to invoke <var title="">callback</var> with the new