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/* -*- 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 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___ */
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