Bug 449156 - Implement HTMLVideoElement.poster, with correct reftests. r+=doublec,jst, sr+=roc

content/base/public/nsIImageLoadingContent.idl

@@ -64,7 +64,7 @@ interface nsIURI;
  * sufficient, when combined with the imageBlockingStatus information.)
  */
 
-[scriptable, uuid(7744c6d3-5c60-4b7b-a526-4fe9d5ac7e97)]
+[scriptable, uuid(e036857e-3417-4812-a5f2-89668a616781)]
 interface nsIImageLoadingContent : imgIDecoderObserver
 {
   /**
@@ -167,4 +167,12 @@ interface nsIImageLoadingContent : imgIDecoderObserver
    * @throws NS_ERROR_NOT_AVAILABLE if there is no current URI to reload
    */
   void forceReload();
+
+  /**
+   * Enables/disables image state forcing. When |aForce| is PR_TRUE, we force
+   * nsImageLoadingContent::ImageState() to return |aState|. Call again with |aForce|
+   * as PR_FALSE to revert ImageState() to its original behaviour.
+   */
+  void forceImageState(in boolean aForce, in long aState);
+  
 };

content/base/src/nsImageLoadingContent.cpp

@@ -109,7 +109,8 @@ nsImageLoadingContent::nsImageLoadingContent()
     // mBroken starts out true, since an image without a URI is broken....
     mBroken(PR_TRUE),
     mUserDisabled(PR_FALSE),
-    mSuppressed(PR_FALSE)
+    mSuppressed(PR_FALSE),
+    mIsImageStateForced(PR_FALSE)    
 {
   if (!nsContentUtils::GetImgLoader()) {
     mLoadingEnabled = PR_FALSE;
@@ -617,10 +618,18 @@ nsImageLoadingContent::LoadImage(nsIURI* aNewURI,
   return NS_OK;
 }
 
+nsresult
+nsImageLoadingContent::ForceImageState(PRBool aForce, PRInt32 aState)
+{
+  mIsImageStateForced = aForce;
+  mForcedImageState = aState;
+  return NS_OK;
+}
+
 PRInt32
 nsImageLoadingContent::ImageState() const
 {
-  return
+  return mIsImageStateForced ? mForcedImageState :
     (mBroken * NS_EVENT_STATE_BROKEN) |
     (mUserDisabled * NS_EVENT_STATE_USERDISABLED) |
     (mSuppressed * NS_EVENT_STATE_SUPPRESSED) |

content/base/src/nsImageLoadingContent.h

@@ -260,10 +260,21 @@ private:
    */
   ImageObserver mObserverList;
 
+  /**
+   * When mIsImageStateForced is true, this holds the ImageState that we'll
+   * return in ImageState().
+   */
+  PRInt32 mForcedImageState;
+
   PRInt16 mImageBlockingStatus;
   PRPackedBool mLoadingEnabled : 1;
   PRPackedBool mStartingLoad : 1;
 
+  /**
+   * When true, we return mForcedImageState from ImageState().
+   */
+  PRPackedBool mIsImageStateForced : 1;
+
   /**
    * The state we had the last time we checked whether we needed to notify the
    * document of a state change.  These are maintained by UpdateImageState.

content/html/content/public/nsHTMLMediaElement.h

@@ -256,11 +256,24 @@ public:
    */
   already_AddRefed<nsILoadGroup> GetDocumentLoadGroup();
 
+  /** 
+   * Returns PR_TRUE if the media has played or completed a seek.
+   * Used by video frame to determine whether to paint the poster.
+   */
+  PRBool GetPlayedOrSeeked() { return mHasPlayedOrSeeked; }
+
 protected:
   class MediaLoadListener;
   class LoadNextSourceEvent;
   class SelectResourceEvent;
 
+  /**
+   * Changes mHasPlayedOrSeeked to aValue. If mHasPlayedOrSeeked changes
+   * we'll force a reflow so that the video frame gets reflowed to reflect
+   * the poster hiding or showing immediately.
+   */
+  void SetPlayedOrSeeked(PRBool aValue);
+
   /**
    * Create a decoder for the given aMIMEType. Returns false if we
    * were unable to create the decoder.
@@ -469,4 +482,8 @@ protected:
   // PR_TRUE if we are allowed to suspend the decoder because we were paused,
   // autobuffer and autoplay were not set, and we loaded the first frame.
   PRPackedBool mAllowSuspendAfterFirstFrame;
+
+  // PR_TRUE if we've played or completed a seek. We use this to determine
+  // when the poster frame should be shown.
+  PRPackedBool mHasPlayedOrSeeked;
 };

content/html/content/src/nsHTMLMediaElement.cpp

@@ -413,6 +413,7 @@ NS_IMETHODIMP nsHTMLMediaElement::Load()
 {
   if (mIsRunningLoadMethod)
     return NS_OK;
+  SetPlayedOrSeeked(PR_FALSE);
   mIsRunningLoadMethod = PR_TRUE;
   AbortExistingLoads();
   QueueSelectResourceTask();
@@ -784,7 +785,8 @@ nsHTMLMediaElement::nsHTMLMediaElement(nsINodeInfo *aNodeInfo, PRBool aFromParse
     mDelayingLoadEvent(PR_FALSE),
     mIsRunningSelectResource(PR_FALSE),
     mSuspendedAfterFirstFrame(PR_FALSE),
-    mAllowSuspendAfterFirstFrame(PR_TRUE)
+    mAllowSuspendAfterFirstFrame(PR_TRUE),
+    mHasPlayedOrSeeked(PR_FALSE)
 {
   RegisterFreezableElement();
 }
@@ -813,9 +815,29 @@ void nsHTMLMediaElement::StopSuspendingAfterFirstFrame()
   }
 }
 
+void nsHTMLMediaElement::SetPlayedOrSeeked(PRBool aValue)
+{
+  if (aValue == mHasPlayedOrSeeked)
+    return;
+
+  mHasPlayedOrSeeked = aValue;
+
+  // Force a reflow so that the poster frame hides or shows immediately.
+  nsIDocument *doc = GetDocument();
+  if (!doc) return;
+  nsIPresShell *presShell = doc->GetPrimaryShell();  
+  if (!presShell) return;
+  nsIFrame* frame = presShell->GetPrimaryFrameFor(this);
+  if (!frame) return;
+  presShell->FrameNeedsReflow(frame,
+                              nsIPresShell::eTreeChange,
+                              NS_FRAME_IS_DIRTY);
+}
+
 NS_IMETHODIMP nsHTMLMediaElement::Play()
 {
   StopSuspendingAfterFirstFrame();
+  SetPlayedOrSeeked(PR_TRUE);
 
   if (mNetworkState == nsIDOMHTMLMediaElement::NETWORK_EMPTY) {
     nsresult rv = Load();
@@ -1204,6 +1226,7 @@ nsresult nsHTMLMediaElement::InitializeDecoderForChannel(nsIChannel *aChannel,
   mDecoder->SetVolume(mMuted ? 0.0 : mVolume);
 
   if (!mPaused) {
+    SetPlayedOrSeeked(PR_TRUE);
     rv = mDecoder->Play();
   }
 
@@ -1301,6 +1324,7 @@ void nsHTMLMediaElement::SeekStarted()
 void nsHTMLMediaElement::SeekCompleted()
 {
   mPlayingBeforeSeek = PR_FALSE;
+  SetPlayedOrSeeked(PR_TRUE);
   DispatchAsyncSimpleEvent(NS_LITERAL_STRING("seeked"));
 }
 
@@ -1454,6 +1478,7 @@ void nsHTMLMediaElement::NotifyAutoplayDataReady()
       mAutoplayEnabled) {
     mPaused = PR_FALSE;
     if (mDecoder) {
+      SetPlayedOrSeeked(PR_TRUE);
       mDecoder->Play();
     }
     DispatchAsyncSimpleEvent(NS_LITERAL_STRING("play"));

content/html/content/src/nsHTMLVideoElement.cpp

@@ -158,3 +158,5 @@ nsHTMLVideoElement::GetAttributeMappingFunction() const
 {
   return &MapAttributesIntoRule;
 }
+
+NS_IMPL_URI_ATTR(nsHTMLVideoElement, Poster, poster)

dom/interfaces/html/nsIDOMHTMLVideoElement.idl

@@ -48,12 +48,13 @@
  * @status UNDER_DEVELOPMENT
  */
 
-[scriptable, uuid(4e3f05a5-ca9b-4576-af7f-b1d4038e6eb3)]
+[scriptable, uuid(edf468dc-42eb-4494-920b-56a315172640)]
 interface nsIDOMHTMLVideoElement : nsIDOMHTMLMediaElement
 {
            attribute long width; 
            attribute long height;
   readonly attribute unsigned long videoWidth;
   readonly attribute unsigned long videoHeight;
+           attribute DOMString poster;
 };
 

layout/generic/nsVideoFrame.cpp

@@ -55,6 +55,8 @@
 #include "nsContentCreatorFunctions.h"
 #include "nsBoxLayoutState.h"
 #include "nsBoxFrame.h"
+#include "nsImageFrame.h"
+#include "nsIImageLoadingContent.h"
 
 #ifdef ACCESSIBILITY
 #include "nsIServiceManager.h"
@@ -87,20 +89,50 @@ NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
 nsresult
 nsVideoFrame::CreateAnonymousContent(nsTArray<nsIContent*>& aElements)
 {
+  nsNodeInfoManager *nodeInfoManager = GetContent()->GetCurrentDoc()->NodeInfoManager();
+  nsCOMPtr<nsINodeInfo> nodeInfo;
+  if (HasVideoElement()) {
+    // Create an anonymous image element as a child to hold the poster
+    // image. We may not have a poster image now, but one could be added
+    // before we load, or on a subsequent load.
+    nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::img,
+                                            nsnull,
+                                            kNameSpaceID_None);
+    NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
+    mPosterImage = NS_NewHTMLImageElement(nodeInfo);
+    NS_ENSURE_TRUE(mPosterImage, NS_ERROR_OUT_OF_MEMORY);
+    
+    // Set the nsImageLoadingContent::ImageState() to 0. This means that the
+    // image will always report its state as 0, so it will never be reframed
+    // to show frames for loading or the broken image icon. This is important,
+    // as the image is native anonymous, and so can't be reframed (currently).
+    nsCOMPtr<nsIImageLoadingContent> imgContent = do_QueryInterface(mPosterImage);
+    NS_ENSURE_TRUE(imgContent, NS_ERROR_FAILURE);
+
+    imgContent->ForceImageState(PR_TRUE, 0);    
+
+    nsresult res = UpdatePosterSource(PR_FALSE);
+    NS_ENSURE_SUCCESS(res,res);
+    
+    if (!aElements.AppendElement(mPosterImage))
+      return NS_ERROR_OUT_OF_MEMORY;
+  } 
+
   // Set up "videocontrols" XUL element which will be XBL-bound to the
   // actual controls.
-  nsPresContext* presContext = PresContext();
-  nsNodeInfoManager *nodeInfoManager =
-    presContext->Document()->NodeInfoManager();
-  nsCOMPtr<nsINodeInfo> nodeInfo;
-  nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::videocontrols, nsnull,
+  nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::videocontrols,
+                                          nsnull,
                                           kNameSpaceID_XUL);
   NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
 
-  nsresult rv = NS_NewElement(getter_AddRefs(mVideoControls), kNameSpaceID_XUL, nodeInfo, PR_FALSE);
+  nsresult rv = NS_NewElement(getter_AddRefs(mVideoControls),
+                              kNameSpaceID_XUL,
+                              nodeInfo,
+                              PR_FALSE);
   NS_ENSURE_SUCCESS(rv, rv);
   if (!aElements.AppendElement(mVideoControls))
     return NS_ERROR_OUT_OF_MEMORY;
+
   return NS_OK;
 }
 
@@ -108,6 +140,7 @@ void
 nsVideoFrame::Destroy()
 {
   nsContentUtils::DestroyAnonymousContent(&mVideoControls);
+  nsContentUtils::DestroyAnonymousContent(&mPosterImage);
   nsContainerFrame::Destroy();
 }
 
@@ -179,16 +212,46 @@ nsVideoFrame::Reflow(nsPresContext*           aPresContext,
   aMetrics.width += mBorderPadding.left + mBorderPadding.right;
   aMetrics.height += mBorderPadding.top + mBorderPadding.bottom;
 
-  nsIFrame* child = mFrames.FirstChild();
-  if (child) {
-    NS_ASSERTION(child->GetContent() == mVideoControls,
-                 "What is this child doing here?");
-    nsBoxLayoutState boxState(PresContext(), aReflowState.rendContext);
-    nsBoxFrame::LayoutChildAt(boxState, child,
-                              nsRect(mBorderPadding.left, mBorderPadding.top,
-                                     aReflowState.ComputedWidth(), aReflowState.ComputedHeight()));
+  // Reflow the child frames. We may have up to two, an image frame
+  // which is the poster, and a box frame, which is the video controls.
+  for (nsIFrame *child = mFrames.FirstChild();
+       child;
+       child = child->GetNextSibling()) {
+    if (child->GetType() == nsGkAtoms::imageFrame) {
+      // Reflow the poster frame.
+      nsImageFrame* imageFrame = static_cast<nsImageFrame*>(child);
+      nsHTMLReflowMetrics kidDesiredSize;
+      nsSize availableSize = nsSize(aReflowState.availableWidth,
+                                    aReflowState.availableHeight);
+      nsHTMLReflowState kidReflowState(aPresContext,
+                                       aReflowState,
+                                       imageFrame,
+                                       availableSize,
+                                       aMetrics.width,
+                                       aMetrics.height);
+      if (ShouldDisplayPoster()) {
+        kidReflowState.SetComputedWidth(aReflowState.ComputedWidth());
+        kidReflowState.SetComputedHeight(aReflowState.ComputedHeight());
+      } else {
+        kidReflowState.SetComputedWidth(0);
+        kidReflowState.SetComputedHeight(0);      
+      }
+      ReflowChild(imageFrame, aPresContext, kidDesiredSize, kidReflowState,
+                  mBorderPadding.left, mBorderPadding.top, 0, aStatus);
+      FinishReflowChild(imageFrame, aPresContext,
+                        &kidReflowState, kidDesiredSize,
+                        mBorderPadding.left, mBorderPadding.top, 0);
+    } else if (child->GetType() == nsGkAtoms::boxFrame) {
+      // Reflow the video controls frame.
+      nsBoxLayoutState boxState(PresContext(), aReflowState.rendContext);
+      nsBoxFrame::LayoutChildAt(boxState,
+                                child,
+                                nsRect(mBorderPadding.left,
+                                       mBorderPadding.top,
+                                       aReflowState.ComputedWidth(),
+                                       aReflowState.ComputedHeight()));
+    }
   }
-
   aMetrics.mOverflowArea.SetRect(0, 0, aMetrics.width, aMetrics.height);
 
   FinishAndStoreOverflow(&aMetrics);
@@ -233,16 +296,30 @@ nsVideoFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
   nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  if (HasVideoData()) {
+  if (!ShouldDisplayPoster() && HasVideoData()) {
     rv = aLists.Content()->AppendNewToTop(new (aBuilder) nsDisplayGeneric(this, ::PaintVideo, "Video"));
     NS_ENSURE_SUCCESS(rv, rv);
   }
 
-  nsIFrame *kid = mFrames.FirstChild();
-  if (kid) {
-    rv = kid->BuildDisplayListForStackingContext(aBuilder, aDirtyRect - kid->GetOffsetTo(this), aLists.Content());
+  // Add child frames to display list. We expect up to two children, an image
+  // frame for the poster, and the box frame for the video controls.
+  for (nsIFrame *child = mFrames.FirstChild();
+       child;
+       child = child->GetNextSibling()) {
+    if (child->GetType() == nsGkAtoms::imageFrame && ShouldDisplayPoster()) {
+      rv = child->BuildDisplayListForStackingContext(aBuilder,
+                                                     aDirtyRect - child->GetOffsetTo(this),
+                                                     aLists.Content());
+      NS_ENSURE_SUCCESS(rv,rv);
+    } else if (child->GetType() == nsGkAtoms::boxFrame) {
+      rv = child->BuildDisplayListForStackingContext(aBuilder,
+                                                     aDirtyRect - child->GetOffsetTo(this),
+                                                     aLists.Content());
+      NS_ENSURE_SUCCESS(rv,rv);
+    }
   }
-  return rv;
+
+  return NS_OK;
 }
 
 nsIAtom*
@@ -317,11 +394,49 @@ nsSize nsVideoFrame::GetIntrinsicRatio()
   return GetIntrinsicSize(nsnull);
 }
 
+PRBool nsVideoFrame::ShouldDisplayPoster()
+{
+  if (!HasVideoElement())
+    return PR_FALSE;
+
+  nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
+  if (element->GetPlayedOrSeeked() && HasVideoData())
+    return PR_FALSE;
+
+  nsCOMPtr<nsIImageLoadingContent> imgContent = do_QueryInterface(mPosterImage);
+  NS_ENSURE_TRUE(imgContent, PR_FALSE);
+  
+  nsCOMPtr<imgIRequest> request;
+  nsresult res = imgContent->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
+                                        getter_AddRefs(request));
+  if (NS_FAILED(res) || !request) {
+    return PR_FALSE;
+  }
+
+  PRUint32 status = 0;
+  res = request->GetImageStatus(&status);
+  if (NS_FAILED(res) || (status & imgIRequest::STATUS_ERROR))
+    return PR_FALSE;  
+  
+  return PR_TRUE;
+}
+
 nsSize nsVideoFrame::GetIntrinsicSize(nsIRenderingContext *aRenderingContext)
 {
   // Defaulting size to 300x150 if no size given.
   nsIntSize size(300,150);
 
+  if (ShouldDisplayPoster()) {
+    // Use the poster image frame's size.
+    nsIFrame *child = mFrames.FirstChild();
+    if (child && child->GetType() == nsGkAtoms::imageFrame) {
+      nsImageFrame* imageFrame = static_cast<nsImageFrame*>(child);
+      nsSize imgsize;
+      imageFrame->GetIntrinsicImageSize(imgsize);
+      return imgsize;
+    }
+  }
+
   if (!HasVideoData()) {
     if (!aRenderingContext || !mFrames.FirstChild()) {
       // We just want our intrinsic ratio, but audio elements need no
@@ -332,21 +447,57 @@ nsSize nsVideoFrame::GetIntrinsicSize(nsIRenderingContext *aRenderingContext)
 
     // Ask the controls frame what its preferred height is
     nsBoxLayoutState boxState(PresContext(), aRenderingContext, 0);
-    nscoord prefHeight = mFrames.FirstChild()->GetPrefSize(boxState).height;
+    nscoord prefHeight = mFrames.LastChild()->GetPrefSize(boxState).height;
     return nsSize(nsPresContext::CSSPixelsToAppUnits(size.width), prefHeight);
   }
 
   nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
-  if (element) {
-    size = element->GetVideoSize(size);
-  }
+  size = element->GetVideoSize(size);
 
   return nsSize(nsPresContext::CSSPixelsToAppUnits(size.width), 
                 nsPresContext::CSSPixelsToAppUnits(size.height));
 }
 
+nsresult
+nsVideoFrame::UpdatePosterSource(PRBool aNotify)
+{
+  NS_ASSERTION(HasVideoElement(), "Only call this on <video> elements.");
+  nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
+
+  nsAutoString posterStr;
+  element->GetPoster(posterStr);
+  nsresult res = mPosterImage->SetAttr(kNameSpaceID_None,
+                                       nsGkAtoms::src,
+                                       posterStr,
+                                       aNotify);
+  NS_ENSURE_SUCCESS(res,res);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsVideoFrame::AttributeChanged(PRInt32 aNameSpaceID,
+                               nsIAtom* aAttribute,
+                               PRInt32 aModType)
+{
+  if (aAttribute == nsGkAtoms::poster) {
+    nsresult res = UpdatePosterSource(PR_TRUE);
+    NS_ENSURE_SUCCESS(res,res);
+  }
+  return nsContainerFrame::AttributeChanged(aNameSpaceID,
+                                            aAttribute,
+                                            aModType);
+}
+
+PRBool nsVideoFrame::HasVideoElement() {
+  nsCOMPtr<nsIDOMHTMLVideoElement> videoDomElement = do_QueryInterface(mContent);
+  return videoDomElement != nsnull;
+}
+
 PRBool nsVideoFrame::HasVideoData()
 {
-  nsCOMPtr<nsIDOMHTMLVideoElement> videoElem = do_QueryInterface(mContent);
-  return videoElem != nsnull;
+  if (!HasVideoElement())
+    return PR_FALSE;
+  nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
+  nsIntSize size = element->GetVideoSize(nsIntSize(0,0));    
+  return size != nsIntSize(0,0);
 }

layout/generic/nsVideoFrame.h

@@ -63,6 +63,10 @@ public:
                               const nsRect&           aDirtyRect,
                               const nsDisplayListSet& aLists);
 
+  NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
+                              nsIAtom* aAttribute,
+                              PRInt32 aModType);
+
   void PaintVideo(nsIRenderingContext& aRenderingContext,
                    const nsRect& aDirtyRect, nsPoint aPt);
                               
@@ -101,14 +105,33 @@ public:
 #endif
 
 protected:
-  // Returns true if there is video data to render. Can return false
-  // when we're the frame for an audio element.
+
+  // Returns PR_TRUE if we're rendering for a video element. We still create
+  // nsVideoFrame to render controls for an audio element.
+  PRBool HasVideoElement();
+
+  // Returns PR_TRUE if there is video data to render. Can return false
+  // when we're the frame for an audio element, or we've created a video
+  // element for a media which is audio-only.
   PRBool HasVideoData();
   
+  // Returns PR_TRUE if we should display the poster. Note that once we show
+  // a video frame, the poster will never be displayed again.
+  PRBool ShouldDisplayPoster();
+
+  // Sets the mPosterImage's src attribute to be the video's poster attribute,
+  // if we're the frame for a video element.
+  nsresult UpdatePosterSource(PRBool aNotify);
+
   virtual ~nsVideoFrame();
 
   nsMargin mBorderPadding;
+  
+  // Anonymous child which is bound via XBL to the video controls.
   nsCOMPtr<nsIContent> mVideoControls;
+  
+  // Anonymous child which is the image element of the poster frame.
+  nsCOMPtr<nsIContent> mPosterImage;
 };
 
 #endif /* nsVideoFrame_h___ */

layout/reftests/ogg-video/poster-1.html

@@ -0,0 +1,7 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<!-- Test if poster frame displays correctly when poster is different size. -->
+<video src="black140x100.ogv" poster="blue250x200.png"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-10.html

@@ -0,0 +1,18 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<!-- Test: Create video, add poster, load. Should display poster. -->
+<script>
+function runTest() {
+  var v = document.createElement('video');
+  v.addEventListener('loadeddata', function(){setTimeout(function(){document.documentElement.className = '';}, 0);}, false);
+  v.id = 'v';
+  v.src = "black140x100.ogv";
+  v.poster = "blue250x200.png";
+  v.autobuffer = true;
+  document.body.appendChild(v);
+}
+
+</script>
+<body style="background:white;" onload="runTest();">
+</body>
+</html>

layout/reftests/ogg-video/poster-11.html

@@ -0,0 +1,29 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<!-- Test: Create video, load. Add poster frame, load again, poster should show. -->
+<script>
+function runTest() {
+  var v = document.createElement('video');
+  
+  var endTest = function() {
+    setTimeout(function(){document.documentElement.className = '';}, 0);
+  };  
+  
+  var addPoster = function() {
+    v.removeEventListener('loadeddata', addPoster, false);
+    v.poster = "blue250x200.png";
+    v.addEventListener('loadeddata', endTest, false);
+    v.load();
+  };
+  
+  v.addEventListener('loadeddata', addPoster, false);
+  v.id = 'v';
+  v.src = "black140x100.ogv";
+  v.autobuffer = true;
+  document.body.appendChild(v);
+}
+
+</script>
+<body style="background:white;" onload="runTest();">
+</body>
+</html>

layout/reftests/ogg-video/poster-12.html

@@ -0,0 +1,40 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<!-- Test: Create video, load, play. Add poster frame, load again, poster should show. -->
+<script>
+function runTest() {
+  var v = document.createElement('video');
+  
+  var endTest = function() {
+    setTimeout(function(){document.documentElement.className = '';}, 0);
+  };
+  
+  var play = 
+    function() {
+      v.removeEventListener('loadeddata', play, false);
+      v.play();
+    }
+
+  var addPoster = function() {
+    v.removeEventListener('playing', addPoster,false);
+    v.poster = "blue250x200.png";
+    v.addEventListener('loadeddata', endTest, false);
+    v.load();
+  };
+
+  v.addEventListener('loadeddata',
+                     play,
+                     false);
+  v.addEventListener('playing',
+                     addPoster,
+                     false);
+  v.id = 'v';
+  v.src = "black140x100.ogv";
+  v.autobuffer = true;
+  document.body.appendChild(v);
+}
+
+</script>
+<body style="background:white;" onload="runTest();">
+</body>
+</html>

layout/reftests/ogg-video/poster-13.html

@@ -0,0 +1,8 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<!-- Test that poster is stretched by css styling. -->
+<video src="black140x100.ogv" poster="blue250x200.png" style="width: 400px; height: 300px;"></video>
+
+</body>
+</html>

layout/reftests/ogg-video/poster-14.html

@@ -0,0 +1,28 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<!-- Test: Create video, load, wait for video frame to show, add poster
+     attribute, poster should show. -->
+<script>
+function runTest() {
+  var v = document.createElement('video');
+  
+  var loadeddata = 
+    function() {
+      setTimeout(function() {v.poster = "blue250x200.png";}, 100);
+      setTimeout(function() {document.documentElement.className = '';}, 150);
+    };
+
+  v.addEventListener('loadeddata',
+                     loadeddata,
+                     false);
+  v.id = 'v';
+  v.src = "black140x100.ogv";
+  v.autobuffer = true;
+  document.body.appendChild(v);
+  
+}
+
+</script>
+<body style="background:white;" onload="runTest();">
+</body>
+</html>

layout/reftests/ogg-video/poster-15.html

@@ -0,0 +1,13 @@
+<!DOCTYPE HTML>
+<html>
+<!-- Test that poster is correctly laid out inside borders. Also test that 
+     poster frames smaller than video don't have the video frame drawn behind
+     them etc. -->
+<body style="background:white;">
+<video src="black140x100.ogv"
+       poster="green70x30.png"
+       autobuffer
+       style="border: solid blue 2px;">
+</video>
+</body>
+</html>

layout/reftests/ogg-video/poster-2.html

@@ -0,0 +1,7 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<!-- Test if poster frame with invalid poster displays video frame. -->
+<video src="black140x100.ogv" poster="not-a-valid-file"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-3.html

@@ -0,0 +1,11 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<body style="background:white;">
+<!-- Test if poster hides after playing with autoplay. -->
+<video src="black140x100.ogv"
+       poster="blue250x200.png"
+       autobuffer
+       autoplay
+       onplaying="setTimeout(function(){document.documentElement.className = '';},0);"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-4.html

@@ -0,0 +1,11 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<body style="background:white;">
+<!-- Test if we show video frame after removing valid poster. -->
+<video src="black140x100.ogv"
+       autobuffer
+       id="v"
+       onload="document.getElementById('v').poster = ''; setTimeout(function(){document.documentElement.className = '';}, 0);"
+       poster="blue250x200.png"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-5.html

@@ -0,0 +1,13 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<body style="background:white;">
+<!-- Test to ensure that changing the poster after video has painted its first
+     frame doesn't render the poster. The video frame should not change to the
+     poster, since it's already painted its first video frame. -->
+<video src="black140x100.ogv"
+       autobuffer
+       id="v"
+       autoplay
+       onended="document.getElementById('v').poster = 'blue250x200.png'; setTimeout(function(){document.documentElement.className = '';},0);"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-6.html

@@ -0,0 +1,12 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<body style="background:white;">
+<!-- Test that poster frame should hide after completing a seek. -->
+<video src="black140x100.ogv"
+       autobuffer
+       id="v"
+       onloadeddata="var v = document.getElementById('v'); v.currentTime = v.duration;"
+       onseeked="setTimeout(function(){document.documentElement.className = '';}, 0);"
+       poster="blue250x200.png"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-7.html

@@ -0,0 +1,11 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<body style="background:white;">
+<!-- Test that poster frame changes when you change the poster attribute. -->
+<video src="black140x100.ogv"
+       autobuffer
+       id="v"
+       onload="document.getElementById('v').poster = 'red160x120.png'; setTimeout(function(){document.documentElement.className = '';}, 0);"
+       poster="blue250x200.png"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-8.html

@@ -0,0 +1,12 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<body style="background:white;">
+<!-- Test if poster hides after playing with play() call. -->
+<video src="black140x100.ogv"
+       poster="blue250x200.png"
+       id="v"
+       autobuffer
+       onloadeddata="document.getElementById('v').play();"
+       onplaying="setTimeout(function(){document.documentElement.className = '';}, 0);"></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-9.html

@@ -0,0 +1,13 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<body style="background:white;" >
+<!-- Test that poster displays all the time when <video> is showing an audio-only media. -->
+<video src="../../../content/media/test/bug461281.ogg"
+       poster="blue250x200.png"
+       id="v"
+       autobuffer
+       autoplay
+       onended="setTimeout(function(){document.documentElement.className = '';},0);">
+</video>
+</body>
+</html>

layout/reftests/ogg-video/poster-ref-black140x100.html

@@ -0,0 +1,6 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<video src="black140x100.ogv" autobuffer></video>
+</body>
+</html>

layout/reftests/ogg-video/poster-ref-blue250x200.html

@@ -0,0 +1,6 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<img src="blue250x200.png" alt="poster">
+</body>
+</html>

layout/reftests/ogg-video/poster-ref-blue400x300.html

@@ -0,0 +1,8 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<img src="blue250x200.png" style="width: 400px; height: 300px;">
+</body>
+</html>
+
+

layout/reftests/ogg-video/poster-ref-green70x30.html

@@ -0,0 +1,6 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<img src="green70x30.png" alt="poster" style="border: solid blue 2px;">
+</body>
+</html>

layout/reftests/ogg-video/poster-ref-red160x120.html

@@ -0,0 +1,6 @@
+<!DOCTYPE HTML>
+<html>
+<body style="background:white;">
+<img src="red160x120.png" alt="poster">
+</body>
+</html>

layout/reftests/ogg-video/reftest.list

@@ -15,3 +15,18 @@ HTTP(..) == offset-1.xhtml offset-1-ref.html
 random HTTP(..) == object-aspect-ratio-2a.xhtml aspect-ratio-2-ref.html
 random HTTP(..) == object-aspect-ratio-2b.xhtml aspect-ratio-2-ref.html
 skip-if(MOZ_WIDGET_TOOLKIT=="gtk2") HTTP(..) == zoomed-1.xhtml zoomed-1-ref.html
+== poster-1.html poster-ref-blue250x200.html
+== poster-2.html poster-ref-black140x100.html
+== poster-3.html poster-ref-black140x100.html
+== poster-4.html poster-ref-black140x100.html
+== poster-5.html poster-ref-black140x100.html
+== poster-6.html poster-ref-black140x100.html
+== poster-7.html poster-ref-red160x120.html
+== poster-8.html poster-ref-black140x100.html
+== poster-9.html poster-ref-blue250x200.html
+== poster-10.html poster-ref-blue250x200.html
+== poster-11.html poster-ref-blue250x200.html
+== poster-12.html poster-ref-blue250x200.html
+== poster-13.html poster-ref-blue400x300.html
+== poster-14.html poster-ref-blue250x200.html
+== poster-15.html poster-ref-green70x30.html