gecko-dev/layout/ipc/RenderFrame.h
Miko Mynttinen 2c5cb1519c Bug 1549751 - Part 2: Add nsPaintedDisplayItem r=mattwoodrow
Move ApplyOpacity(), CanApplyOpacity(), Paint() and PaintWithClip() methods to nsPaintedDisplayItem

Differential Revision: https://phabricator.services.mozilla.com/D30225

--HG--
extra : moz-landing-system : lando
2019-05-08 13:49:56 +00:00

139 lines
4.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_RenderFrame_h
#define mozilla_layout_RenderFrame_h
#include "base/process.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/ipc/IdType.h"
#include "mozilla/layers/CompositorOptions.h"
#include "mozilla/layers/LayersTypes.h"
#include "nsDisplayList.h"
class nsFrameLoader;
class nsSubDocumentFrame;
namespace mozilla {
namespace dom {
class BrowserParent;
} // namespace dom
namespace layers {
struct TextureFactoryIdentifier;
} // namespace layers
namespace layout {
/**
* RenderFrame connects and manages layer trees for remote frames. It is
* directly owned by a BrowserParent and always lives in the parent process.
*/
class RenderFrame final {
typedef mozilla::layers::CompositorOptions CompositorOptions;
typedef mozilla::layers::LayerManager LayerManager;
typedef mozilla::layers::LayersId LayersId;
typedef mozilla::layers::TextureFactoryIdentifier TextureFactoryIdentifier;
public:
RenderFrame();
virtual ~RenderFrame();
bool Initialize(dom::BrowserParent* aBrowserParent);
void Destroy();
void EnsureLayersConnected(CompositorOptions* aCompositorOptions);
LayerManager* AttachLayerManager();
void OwnerContentChanged();
LayersId GetLayersId() const { return mLayersId; }
CompositorOptions GetCompositorOptions() const { return mCompositorOptions; }
void GetTextureFactoryIdentifier(
TextureFactoryIdentifier* aTextureFactoryIdentifier) const;
bool IsInitialized() const { return mInitialized; }
bool IsLayersConnected() const { return mLayersConnected; }
private:
// The process id of the remote frame. This is used by the compositor to
// do security checks on incoming layer transactions.
base::ProcessId mTabProcessId;
// The layers id of the remote frame.
LayersId mLayersId;
// The compositor options for this layers id. This is only meaningful if
// the compositor actually knows about this layers id (i.e. when
// mLayersConnected is true).
CompositorOptions mCompositorOptions;
dom::BrowserParent* mBrowserParent;
RefPtr<LayerManager> mLayerManager;
bool mInitialized;
// A flag that indicates whether or not the compositor knows about the
// layers id. In some cases this RenderFrame is not connected to the
// compositor and so this flag is false.
bool mLayersConnected;
};
} // namespace layout
} // namespace mozilla
/**
* A nsDisplayRemote will graft a remote frame's shadow layer tree (for a given
* nsFrameLoader) into its parent frame's layer tree.
*/
class nsDisplayRemote final : public nsPaintedDisplayItem {
typedef mozilla::dom::TabId TabId;
typedef mozilla::gfx::Matrix4x4 Matrix4x4;
typedef mozilla::layers::EventRegionsOverride EventRegionsOverride;
typedef mozilla::layers::Layer Layer;
typedef mozilla::layers::LayersId LayersId;
typedef mozilla::layers::RefLayer RefLayer;
typedef mozilla::layout::RenderFrame RenderFrame;
typedef mozilla::LayoutDeviceRect LayoutDeviceRect;
typedef mozilla::LayoutDeviceIntPoint LayoutDeviceIntPoint;
public:
nsDisplayRemote(nsDisplayListBuilder* aBuilder, nsSubDocumentFrame* aFrame);
LayerState GetLayerState(
nsDisplayListBuilder* aBuilder, LayerManager* aManager,
const ContainerLayerParameters& aParameters) override;
already_AddRefed<Layer> BuildLayer(
nsDisplayListBuilder* aBuilder, LayerManager* aManager,
const ContainerLayerParameters& aContainerParameters) override;
void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
bool CreateWebRenderCommands(
mozilla::wr::DisplayListBuilder& aBuilder,
mozilla::wr::IpcResourceUpdateQueue& aResources,
const StackingContextHelper& aSc,
mozilla::layers::RenderRootStateManager* aManager,
nsDisplayListBuilder* aDisplayListBuilder) override;
bool UpdateScrollData(
mozilla::layers::WebRenderScrollData* aData,
mozilla::layers::WebRenderLayerScrollData* aLayerData) override;
NS_DISPLAY_DECL_NAME("Remote", TYPE_REMOTE)
private:
friend class nsDisplayItemBase;
nsFrameLoader* GetFrameLoader() const;
TabId mTabId;
LayersId mLayersId;
LayoutDeviceIntPoint mOffset;
EventRegionsOverride mEventRegionsOverride;
};
#endif // mozilla_layout_RenderFrame_h