gecko-dev/layout/ipc/RenderFrameParent.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Code.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Chris Jones <jones.chris.g@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_layout_RenderFrameParent_h
#define mozilla_layout_RenderFrameParent_h
#include "mozilla/layout/PRenderFrameParent.h"
#include <map>
#include "nsDisplayList.h"
#include "Layers.h"
class nsContentView;
class nsFrameLoader;
class nsSubDocumentFrame;
namespace mozilla {
namespace layers {
class ShadowLayersParent;
}
namespace layout {
class RenderFrameParent : public PRenderFrameParent
{
typedef mozilla::layers::FrameMetrics FrameMetrics;
typedef mozilla::layers::ContainerLayer ContainerLayer;
typedef mozilla::layers::Layer Layer;
typedef mozilla::layers::LayerManager LayerManager;
typedef mozilla::layers::ShadowLayersParent ShadowLayersParent;
typedef FrameMetrics::ViewID ViewID;
public:
typedef std::map<ViewID, nsRefPtr<nsContentView> > ViewMap;
RenderFrameParent(nsFrameLoader* aFrameLoader);
virtual ~RenderFrameParent();
void Destroy();
/**
* Helper function for getting a non-owning reference to a scrollable.
* @param aId The ID of the frame.
*/
nsContentView* GetContentView(ViewID aId = FrameMetrics::ROOT_SCROLL_ID);
void ShadowLayersUpdated();
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
nsSubDocumentFrame* aFrame,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
nsIFrame* aFrame,
LayerManager* aManager,
const nsIntRect& aVisibleRect);
void OwnerContentChanged(nsIContent* aContent);
protected:
NS_OVERRIDE void ActorDestroy(ActorDestroyReason why);
NS_OVERRIDE virtual PLayersParent* AllocPLayers();
NS_OVERRIDE virtual bool DeallocPLayers(PLayersParent* aLayers);
private:
void BuildViewMap();
LayerManager* GetLayerManager() const;
ShadowLayersParent* GetShadowLayers() const;
ContainerLayer* GetRootLayer() const;
nsRefPtr<nsFrameLoader> mFrameLoader;
nsRefPtr<ContainerLayer> mContainer;
// This contains the views for all the scrollable frames currently in the
// painted region of our remote content.
ViewMap mContentViews;
};
} // 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, nsIFrame* aFrame,
RenderFrameParent* aRemoteFrame)
: nsDisplayItem(aBuilder, aFrame)
, mRemoteFrame(aRemoteFrame)
{}
NS_OVERRIDE
virtual LayerState GetLayerState(nsDisplayListBuilder* aBuilder,
LayerManager* aManager)
{ return mozilla::LAYER_ACTIVE; }
NS_OVERRIDE
virtual already_AddRefed<Layer>
BuildLayer(nsDisplayListBuilder* aBuilder, LayerManager* aManager);
NS_DISPLAY_DECL_NAME("Remote", TYPE_REMOTE)
private:
RenderFrameParent* mRemoteFrame;
};
/**
* nsDisplayRemoteShadow is a way of adding display items for frames in a
* separate process, for hit testing only. After being processed, the hit
* test state will contain IDs for any remote frames that were hit.
*
* The frame should be its respective render frame parent.
*/
class nsDisplayRemoteShadow : public nsDisplayItem
{
typedef mozilla::layout::RenderFrameParent RenderFrameParent;
typedef mozilla::layers::FrameMetrics::ViewID ViewID;
public:
nsDisplayRemoteShadow(nsDisplayListBuilder* aBuilder,
nsIFrame* aFrame,
nsRect aRect,
ViewID aId)
: nsDisplayItem(aBuilder, aFrame)
, mRect(aRect)
, mId(aId)
{}
NS_OVERRIDE nsRect GetBounds(nsDisplayListBuilder* aBuilder)
{
return mRect;
}
virtual PRUint32 GetPerFrameKey()
{
NS_ABORT();
return 0;
}
NS_OVERRIDE void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames);
NS_DISPLAY_DECL_NAME("Remote-Shadow", TYPE_REMOTE_SHADOW)
private:
nsRect mRect;
ViewID mId;
};
#endif // mozilla_layout_RenderFrameParent_h