зеркало из https://github.com/mozilla/gecko-dev.git
145 строки
4.9 KiB
C++
145 строки
4.9 KiB
C++
/* -*- 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
|
|
|
|
void BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists) override;
|
|
|
|
nsresult AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType) override;
|
|
|
|
void OnVisibilityChange(Visibility aNewVisibility,
|
|
const Maybe<OnNonvisible>& aNonvisibleAction = Nothing()) override;
|
|
|
|
/* get the size of the video's display */
|
|
nsSize GetVideoIntrinsicSize(nsRenderingContext *aRenderingContext);
|
|
nsSize GetIntrinsicRatio() override;
|
|
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;
|
|
nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
|
|
nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
|
|
void DestroyFrom(nsIFrame* aDestructRoot) override;
|
|
bool IsLeaf() const override;
|
|
|
|
void Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) override;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
mozilla::a11y::AccType AccessibleType() override;
|
|
#endif
|
|
|
|
nsIAtom* GetType() const override;
|
|
|
|
bool IsFrameOfType(uint32_t aFlags) const override
|
|
{
|
|
return nsSplittableFrame::IsFrameOfType(aFlags &
|
|
~(nsIFrame::eReplaced | nsIFrame::eReplacedSizing));
|
|
}
|
|
|
|
nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
|
|
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
|
|
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();
|
|
|
|
// 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___ */
|