1 files changed, 146 insertions, 0 deletions
diff --git a/layout/generic/nsVideoFrame.h b/layout/generic/nsVideoFrame.h
new file mode 100644
index 000000000..36e9f9ac3
--- /dev/null
+++ b/layout/generic/nsVideoFrame.h
@@ -0,0 +1,146 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* rendering object for the HTML <video> element */
+
+#ifndef nsVideoFrame_h___
+#define nsVideoFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsContainerFrame.h"
+#include "nsIAnonymousContentCreator.h"
+#include "nsTArrayForwardDeclare.h"
+#include "FrameLayerBuilder.h"
+
+namespace mozilla {
+namespace layers {
+class Layer;
+class LayerManager;
+} // namespace layers
+} // namespace mozilla
+
+class nsAString;
+class nsPresContext;
+class nsDisplayItem;
+
+class nsVideoFrame : public nsContainerFrame
+                   , public nsIAnonymousContentCreator
+{
+public:
+  template <typename T> using Maybe = mozilla::Maybe<T>;
+  using Nothing = mozilla::Nothing;
+  using Visibility = mozilla::Visibility;
+
+  typedef mozilla::layers::Layer Layer;
+  typedef mozilla::layers::LayerManager LayerManager;
+  typedef mozilla::ContainerLayerParameters ContainerLayerParameters;
+
+  explicit nsVideoFrame(nsStyleContext* aContext);
+
+  NS_DECL_QUERYFRAME
+  NS_DECL_QUERYFRAME_TARGET(nsVideoFrame)
+  NS_DECL_FRAMEARENA_HELPERS
+
+  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                const nsRect&           aDirtyRect,
+                                const nsDisplayListSet& aLists) override;
+
+  virtual nsresult AttributeChanged(int32_t aNameSpaceID,
+                                    nsIAtom* aAttribute,
+                                    int32_t aModType) override;
+
+  void OnVisibilityChange(Visibility aNewVisibility,
+                          Maybe<OnNonvisible> aNonvisibleAction = Nothing()) override;
+
+  /* get the size of the video's display */
+  nsSize GetVideoIntrinsicSize(nsRenderingContext *aRenderingContext);
+  virtual nsSize GetIntrinsicRatio() override;
+  virtual mozilla::LogicalSize
+  ComputeSize(nsRenderingContext *aRenderingContext,
+              mozilla::WritingMode aWritingMode,
+              const mozilla::LogicalSize& aCBSize,
+              nscoord aAvailableISize,
+              const mozilla::LogicalSize& aMargin,
+              const mozilla::LogicalSize& aBorder,
+              const mozilla::LogicalSize& aPadding,
+              ComputeSizeFlags aFlags) override;
+  virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
+  virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
+  virtual bool IsLeaf() const override;
+
+  virtual void Reflow(nsPresContext*           aPresContext,
+                      ReflowOutput&     aDesiredSize,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus&          aStatus) override;
+
+#ifdef ACCESSIBILITY
+  virtual mozilla::a11y::AccType AccessibleType() override;
+#endif
+
+  virtual nsIAtom* GetType() const override;
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const override
+  {
+    return nsSplittableFrame::IsFrameOfType(aFlags &
+      ~(nsIFrame::eReplaced | nsIFrame::eReplacedSizing));
+  }
+  
+  virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
+  virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
+                                        uint32_t aFilters) override;
+
+  nsIContent* GetPosterImage() { return mPosterImage; }
+
+  // Returns true if we should display the poster. Note that once we show
+  // a video frame, the poster will never be displayed again.
+  bool ShouldDisplayPoster();
+
+  nsIContent *GetCaptionOverlay() { return mCaptionDiv; }
+
+  nsIContent *GetVideoControls() { return mVideoControls; }
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+  already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
+                                     LayerManager* aManager,
+                                     nsDisplayItem* aItem,
+                                     const ContainerLayerParameters& aContainerParameters);
+
+protected:
+
+  // Returns true if we're rendering for a video element. We still create
+  // nsVideoFrame to render controls for an audio element.
+  bool HasVideoElement();
+
+  // Returns 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.
+  bool HasVideoData();
+
+  // Sets the mPosterImage's src attribute to be the video's poster attribute,
+  // if we're the frame for a video element. Only call on frames for video
+  // elements, not for frames for audio elements.
+  void UpdatePosterSource(bool 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;
+
+  // Anonymous child which is the text track caption display div.
+  nsCOMPtr<nsIContent> mCaptionDiv;
+
+};
+
+#endif /* nsVideoFrame_h___ */