1 files changed, 161 insertions, 0 deletions
diff --git a/layout/ipc/RenderFrameParent.h b/layout/ipc/RenderFrameParent.h
new file mode 100644
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+++ b/layout/ipc/RenderFrameParent.h
@@ -0,0 +1,161 @@
+/* -*- 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