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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* 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/. */
#ifndef mozilla_layout_RenderFrameParent_h
#define mozilla_layout_RenderFrameParent_h
#include "mozilla/Attributes.h"
#include <map>
#include "mozilla/layers/APZUtils.h"
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/layout/PRenderFrameParent.h"
#include "nsDisplayList.h"
class nsFrameLoader;
class nsSubDocumentFrame;
namespace mozilla {
class InputEvent;
namespace layers {
class AsyncDragMetrics;
class TargetConfig;
struct TextureFactoryIdentifier;
struct ScrollableLayerGuid;
} // namespace layers
namespace layout {
class RenderFrameParent : public PRenderFrameParent
{
typedef mozilla::layers::AsyncDragMetrics AsyncDragMetrics;
typedef mozilla::layers::FrameMetrics FrameMetrics;
typedef mozilla::layers::ContainerLayer ContainerLayer;
typedef mozilla::layers::Layer Layer;
typedef mozilla::layers::LayerManager LayerManager;
typedef mozilla::layers::TargetConfig TargetConfig;
typedef mozilla::ContainerLayerParameters ContainerLayerParameters;
typedef mozilla::layers::TextureFactoryIdentifier TextureFactoryIdentifier;
typedef mozilla::layers::ScrollableLayerGuid ScrollableLayerGuid;
typedef mozilla::layers::TouchBehaviorFlags TouchBehaviorFlags;
typedef mozilla::layers::ZoomConstraints ZoomConstraints;
typedef FrameMetrics::ViewID ViewID;
public:
/**
* Select the desired scrolling behavior. If ASYNC_PAN_ZOOM is
* chosen, then RenderFrameParent will watch input events and use
* them to asynchronously pan and zoom.
*/
RenderFrameParent(nsFrameLoader* aFrameLoader, bool* aSuccess);
virtual ~RenderFrameParent();
bool Init(nsFrameLoader* aFrameLoader);
bool IsInitted();
void Destroy();
void BuildDisplayList(nsDisplayListBuilder* aBuilder,
nsSubDocumentFrame* aFrame,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
nsIFrame* aFrame,
LayerManager* aManager,
const nsIntRect& aVisibleRect,
nsDisplayItem* aItem,
const ContainerLayerParameters& aContainerParameters);
void OwnerContentChanged(nsIContent* aContent);
bool HitTest(const nsRect& aRect);
void GetTextureFactoryIdentifier(TextureFactoryIdentifier* aTextureFactoryIdentifier);
inline uint64_t GetLayersId() { return mLayersId; }
void TakeFocusForClickFromTap();
void EnsureLayersConnected();
protected:
void ActorDestroy(ActorDestroyReason why) override;
virtual bool RecvNotifyCompositorTransaction() override;
private:
void TriggerRepaint();
void DispatchEventForPanZoomController(const InputEvent& aEvent);
uint64_t GetLayerTreeId() const;
// When our child frame is pushing transactions directly to the
// compositor, this is the ID of its layer tree in the compositor's
// context.
uint64_t mLayersId;
RefPtr<nsFrameLoader> mFrameLoader;
RefPtr<ContainerLayer> mContainer;
// True after Destroy() has been called, which is triggered
// originally by nsFrameLoader::Destroy(). After this point, we can
// no longer safely ask the frame loader to find its nearest layer
// manager, because it may have been disconnected from the DOM.
// It's still OK to *tell* the frame loader that we've painted after
// it's destroyed; it'll just ignore us, and we won't be able to
// find an nsIFrame to invalidate. See ShadowLayersUpdated().
//
// Prefer the extra bit of state to null'ing out mFrameLoader in
// Destroy() so that less code needs to be special-cased for after
// Destroy().
//
// It's possible for mFrameLoader==null and
// mFrameLoaderDestroyed==false.
bool mFrameLoaderDestroyed;
bool mAsyncPanZoomEnabled;
bool mInitted;
};
} // namespace layout
} // namespace mozilla
/**
* A DisplayRemote exists solely to graft a child process's shadow
* layer tree (for a given RenderFrameParent) into its parent
* process's layer tree.
*/
class nsDisplayRemote : public nsDisplayItem
{
typedef mozilla::layout::RenderFrameParent RenderFrameParent;
public:
nsDisplayRemote(nsDisplayListBuilder* aBuilder, nsSubDocumentFrame* aFrame,
RenderFrameParent* aRemoteFrame);
virtual LayerState GetLayerState(nsDisplayListBuilder* aBuilder,
LayerManager* aManager,
const ContainerLayerParameters& aParameters) override
{ return mozilla::LAYER_ACTIVE_FORCE; }
virtual already_AddRefed<Layer>
BuildLayer(nsDisplayListBuilder* aBuilder, LayerManager* aManager,
const ContainerLayerParameters& aContainerParameters) override;
NS_DISPLAY_DECL_NAME("Remote", TYPE_REMOTE)
private:
RenderFrameParent* mRemoteFrame;
mozilla::layers::EventRegionsOverride mEventRegionsOverride;
};
#endif // mozilla_layout_RenderFrameParent_h
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