зеркало из https://github.com/mozilla/gecko-dev.git
135 строки
4.5 KiB
C++
135 строки
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layout_RenderFrame_h
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#define mozilla_layout_RenderFrame_h
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#include "base/process.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/ipc/IdType.h"
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#include "mozilla/layers/CompositorOptions.h"
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#include "mozilla/layers/LayersTypes.h"
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#include "nsDisplayList.h"
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class nsFrameLoader;
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class nsSubDocumentFrame;
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namespace mozilla {
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namespace layers {
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struct TextureFactoryIdentifier;
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} // namespace layers
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namespace layout {
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class RenderFrame final
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{
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typedef mozilla::layers::CompositorOptions CompositorOptions;
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typedef mozilla::layers::LayerManager LayerManager;
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typedef mozilla::layers::LayersId LayersId;
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typedef mozilla::layers::TextureFactoryIdentifier TextureFactoryIdentifier;
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public:
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RenderFrame();
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virtual ~RenderFrame();
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bool Initialize(nsFrameLoader* aFrameLoader);
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void Destroy();
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void EnsureLayersConnected(CompositorOptions* aCompositorOptions);
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LayerManager* AttachLayerManager();
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void OwnerContentChanged(nsIContent* aContent);
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nsFrameLoader* GetFrameLoader() const { return mFrameLoader; }
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LayersId GetLayersId() const { return mLayersId; }
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CompositorOptions GetCompositorOptions() const { return mCompositorOptions; }
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void GetTextureFactoryIdentifier(TextureFactoryIdentifier* aTextureFactoryIdentifier) const;
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bool IsInitialized() const { return mInitialized; }
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bool IsLayersConnected() const { return mLayersConnected; }
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private:
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base::ProcessId mTabProcessId;
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// When our child frame is pushing transactions directly to the
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// compositor, this is the ID of its layer tree in the compositor's
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// context.
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LayersId mLayersId;
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// The compositor options for this layers id. This is only meaningful if
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// the compositor actually knows about this layers id (i.e. when mLayersConnected
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// is true).
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CompositorOptions mCompositorOptions;
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RefPtr<nsFrameLoader> mFrameLoader;
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RefPtr<LayerManager> mLayerManager;
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bool mInitialized;
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// A flag that indicates whether or not the compositor knows about the
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// layers id. In some cases this RenderFrame is not connected to the
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// compositor and so this flag is false.
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bool mLayersConnected;
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};
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} // namespace layout
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} // namespace mozilla
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/**
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* A DisplayRemote exists solely to graft a child process's shadow
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* layer tree (for a given RenderFrame) into its parent
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* process's layer tree.
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*/
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class nsDisplayRemote final : public nsDisplayItem
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{
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typedef mozilla::dom::TabId TabId;
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typedef mozilla::gfx::Matrix4x4 Matrix4x4;
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typedef mozilla::layers::EventRegionsOverride EventRegionsOverride;
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typedef mozilla::layers::Layer Layer;
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typedef mozilla::layers::LayersId LayersId;
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typedef mozilla::layers::RefLayer RefLayer;
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typedef mozilla::layout::RenderFrame RenderFrame;
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typedef mozilla::LayoutDeviceRect LayoutDeviceRect;
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typedef mozilla::LayoutDeviceIntPoint LayoutDeviceIntPoint;
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public:
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nsDisplayRemote(nsDisplayListBuilder* aBuilder,
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nsSubDocumentFrame* aFrame);
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bool HasDeletedFrame() const override;
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LayerState GetLayerState(nsDisplayListBuilder* aBuilder,
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LayerManager* aManager,
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const ContainerLayerParameters& aParameters) override;
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already_AddRefed<Layer>
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BuildLayer(nsDisplayListBuilder* aBuilder, LayerManager* aManager,
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const ContainerLayerParameters& aContainerParameters) override;
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void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
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bool CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) override;
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bool UpdateScrollData(mozilla::layers::WebRenderScrollData* aData,
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mozilla::layers::WebRenderLayerScrollData* aLayerData) override;
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NS_DISPLAY_DECL_NAME("Remote", TYPE_REMOTE)
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private:
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LayersId GetRemoteLayersId() const;
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RenderFrame* GetRenderFrame() const;
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TabId mTabId;
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LayoutDeviceIntPoint mOffset;
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EventRegionsOverride mEventRegionsOverride;
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};
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#endif // mozilla_layout_RenderFrame_h
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