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a3ae69617c
Backed out changeset e2ab653f688a (bug 1008917) Backed out changeset b52154d8d900 (bug 1008917) Backed out changeset 2ab5b01da4de (bug 1008917) Backed out changeset f7a38df1d44f (bug 1008917) Backed out changeset 80304bb9a572 (bug 1008917) Backed out changeset 10ed89a302e9 (bug 1008917) Backed out changeset 161c41991d46 (bug 1008917) Backed out changeset 25b2475d2368 (bug 1008917) Backed out changeset b8000b31277c (bug 1008917) Backed out changeset 9afa5e7715e1 (bug 1008917) Backed out changeset 5c380c21351f (bug 1008917)
341 lines
12 KiB
C++
341 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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/* rendering objects for replaced elements implemented by a plugin */
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#ifndef nsObjectFrame_h___
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#define nsObjectFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsIObjectFrame.h"
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#include "nsFrame.h"
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#include "nsRegion.h"
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#include "nsDisplayList.h"
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#include "nsIReflowCallback.h"
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#ifdef XP_WIN
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#include <windows.h> // For HWND :(
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#endif
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class nsPresContext;
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class nsRootPresContext;
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class nsDisplayPlugin;
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class nsIOSurface;
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class PluginBackgroundSink;
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class nsPluginInstanceOwner;
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namespace mozilla {
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namespace layers {
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class ImageContainer;
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class Layer;
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class LayerManager;
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}
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}
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typedef nsFrame nsObjectFrameSuper;
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class nsObjectFrame : public nsObjectFrameSuper,
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public nsIObjectFrame,
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public nsIReflowCallback {
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public:
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typedef mozilla::LayerState LayerState;
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typedef mozilla::layers::Layer Layer;
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typedef mozilla::layers::LayerManager LayerManager;
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typedef mozilla::layers::ImageContainer ImageContainer;
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typedef mozilla::ContainerLayerParameters ContainerLayerParameters;
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewObjectFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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NS_DECL_QUERYFRAME
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NS_DECL_QUERYFRAME_TARGET(nsObjectFrame)
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virtual void Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
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virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
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virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
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virtual nsresult Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) MOZ_OVERRIDE;
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virtual nsresult DidReflow(nsPresContext* aPresContext,
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const nsHTMLReflowState* aReflowState,
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nsDidReflowStatus aStatus) MOZ_OVERRIDE;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) MOZ_OVERRIDE;
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virtual nsresult HandleEvent(nsPresContext* aPresContext,
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mozilla::WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus) MOZ_OVERRIDE;
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virtual nsIAtom* GetType() const MOZ_OVERRIDE;
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virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
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{
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return nsObjectFrameSuper::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
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}
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virtual bool NeedsView() MOZ_OVERRIDE { return true; }
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
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#endif
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virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
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virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE;
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NS_METHOD GetPluginInstance(nsNPAPIPluginInstance** aPluginInstance) MOZ_OVERRIDE;
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virtual void SetIsDocumentActive(bool aIsActive) MOZ_OVERRIDE;
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virtual nsresult GetCursor(const nsPoint& aPoint,
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nsIFrame::Cursor& aCursor) MOZ_OVERRIDE;
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// APIs used by nsRootPresContext to set up the widget position/size/clip
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// region.
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/**
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* Set the next widget configuration for the plugin to the desired
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* position of the plugin's widget, on the assumption that it is not visible
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* (clipped out or covered by opaque content).
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* This will only be called for plugins which have been registered
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* with the root pres context for geometry updates.
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* If there is no widget associated with the plugin, this will have no effect.
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*/
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void SetEmptyWidgetConfiguration()
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{
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mNextConfigurationBounds = nsIntRect(0,0,0,0);
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mNextConfigurationClipRegion.Clear();
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}
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/**
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* Append the desired widget configuration to aConfigurations.
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*/
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void GetWidgetConfiguration(nsTArray<nsIWidget::Configuration>* aConfigurations)
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{
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if (mWidget) {
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if (!mWidget->GetParent()) {
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// Plugin widgets should not be toplevel except when they're out of the
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// document, in which case the plugin should not be registered for
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// geometry updates and this should not be called. But apparently we
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// have bugs where mWidget sometimes is toplevel here. Bail out.
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NS_ERROR("Plugin widgets registered for geometry updates should not be toplevel");
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return;
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}
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nsIWidget::Configuration* configuration = aConfigurations->AppendElement();
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configuration->mChild = mWidget;
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configuration->mBounds = mNextConfigurationBounds;
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configuration->mClipRegion = mNextConfigurationClipRegion;
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}
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}
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/**
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* Called after all widget position/size/clip regions have been changed
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* (even if there isn't a widget for this plugin).
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*/
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void DidSetWidgetGeometry();
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// accessibility support
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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
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#ifdef XP_WIN
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NS_IMETHOD GetPluginPort(HWND *aPort);
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#endif
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#endif
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//local methods
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nsresult PrepForDrawing(nsIWidget *aWidget);
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// for a given aRoot, this walks the frame tree looking for the next outFrame
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static nsIObjectFrame* GetNextObjectFrame(nsPresContext* aPresContext,
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nsIFrame* aRoot);
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// nsIReflowCallback
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virtual bool ReflowFinished() MOZ_OVERRIDE;
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virtual void ReflowCallbackCanceled() MOZ_OVERRIDE;
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/**
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* Builds either an ImageLayer or a ReadbackLayer, depending on the type
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* of aItem (TYPE_PLUGIN or TYPE_PLUGIN_READBACK respectively).
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*/
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already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
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LayerManager* aManager,
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nsDisplayItem* aItem,
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const ContainerLayerParameters& aContainerParameters);
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LayerState GetLayerState(nsDisplayListBuilder* aBuilder,
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LayerManager* aManager);
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/**
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* Get the rectangle (relative to this frame) which it will paint. Normally
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* the frame's content-box but may be smaller if the plugin is rendering
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* asynchronously and has a different-sized image temporarily.
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*/
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nsRect GetPaintedRect(nsDisplayPlugin* aItem);
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/**
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* If aContent has a nsObjectFrame, then prepare it for a DocShell swap.
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* @see nsSubDocumentFrame::BeginSwapDocShells.
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* There will be a call to EndSwapDocShells after we were moved to the
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* new view tree.
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*/
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static void BeginSwapDocShells(nsIContent* aContent, void*);
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/**
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* If aContent has a nsObjectFrame, then set it up after a DocShell swap.
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* @see nsSubDocumentFrame::EndSwapDocShells.
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*/
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static void EndSwapDocShells(nsIContent* aContent, void*);
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nsIWidget* GetWidget() MOZ_OVERRIDE { return mInnerView ? mWidget : nullptr; }
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/**
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* Adjust the plugin's idea of its size, using aSize as its new size.
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* (aSize must be in twips)
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*/
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void FixupWindow(const nsSize& aSize);
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/*
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* Sets up the plugin window and calls SetWindow on the plugin.
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*/
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nsresult CallSetWindow(bool aCheckIsHidden = true);
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void SetInstanceOwner(nsPluginInstanceOwner* aOwner);
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protected:
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nsObjectFrame(nsStyleContext* aContext);
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virtual ~nsObjectFrame();
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// NOTE: This frame class does not inherit from |nsLeafFrame|, so
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// this is not a virtual method implementation.
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void GetDesiredSize(nsPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize);
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bool IsFocusable(int32_t *aTabIndex = nullptr,
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bool aWithMouse = false) MOZ_OVERRIDE;
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// check attributes and optionally CSS to see if we should display anything
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bool IsHidden(bool aCheckVisibilityStyle = true) const;
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bool IsOpaque() const;
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bool IsTransparentMode() const;
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bool IsPaintedByGecko() const;
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nsIntPoint GetWindowOriginInPixels(bool aWindowless);
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static void PaintPrintPlugin(nsIFrame* aFrame,
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nsRenderingContext* aRenderingContext,
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const nsRect& aDirtyRect, nsPoint aPt);
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void PrintPlugin(nsRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect);
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void PaintPlugin(nsDisplayListBuilder* aBuilder,
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nsRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect, const nsRect& aPluginRect);
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void NotifyPluginReflowObservers();
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friend class nsPluginInstanceOwner;
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friend class nsDisplayPlugin;
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friend class PluginBackgroundSink;
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private:
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// Registers the plugin for a geometry update, and requests a geometry
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// update. This caches the root pres context in
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// mRootPresContextRegisteredWith, so that we can be sure we unregister
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// from the right root prest context in UnregisterPluginForGeometryUpdates.
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void RegisterPluginForGeometryUpdates();
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// Unregisters the plugin for geometry updated with the root pres context
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// stored in mRootPresContextRegisteredWith.
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void UnregisterPluginForGeometryUpdates();
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class PluginEventNotifier : public nsRunnable {
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public:
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PluginEventNotifier(const nsString &aEventType) :
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mEventType(aEventType) {}
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NS_IMETHOD Run() MOZ_OVERRIDE;
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private:
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nsString mEventType;
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};
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nsPluginInstanceOwner* mInstanceOwner; // WEAK
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nsView* mInnerView;
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nsCOMPtr<nsIWidget> mWidget;
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nsIntRect mWindowlessRect;
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/**
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* This is owned by the ReadbackLayer for this nsObjectFrame. It is
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* automatically cleared if the PluginBackgroundSink is destroyed.
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*/
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PluginBackgroundSink* mBackgroundSink;
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/**
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* Bounds that we should set the plugin's widget to in the next composite,
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* for plugins with widgets. For plugins without widgets, bounds in device
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* pixels relative to the nearest frame that's a display list reference frame.
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*/
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nsIntRect mNextConfigurationBounds;
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/**
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* Clip region that we should set the plugin's widget to
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* in the next composite. Only meaningful for plugins with widgets.
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*/
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nsTArray<nsIntRect> mNextConfigurationClipRegion;
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bool mReflowCallbackPosted;
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// We keep this reference to ensure we can always unregister the
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// plugins we register on the root PresContext.
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// This is only non-null while we have a plugin registered for geometry
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// updates.
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nsRefPtr<nsRootPresContext> mRootPresContextRegisteredWith;
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};
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class nsDisplayPlugin : public nsDisplayItem {
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public:
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nsDisplayPlugin(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
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: nsDisplayItem(aBuilder, aFrame)
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{
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MOZ_COUNT_CTOR(nsDisplayPlugin);
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aBuilder->SetContainsPluginItem();
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayPlugin() {
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MOZ_COUNT_DTOR(nsDisplayPlugin);
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}
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#endif
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virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) MOZ_OVERRIDE;
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virtual nsRegion GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
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bool* aSnap) MOZ_OVERRIDE;
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virtual void Paint(nsDisplayListBuilder* aBuilder,
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nsRenderingContext* aCtx) MOZ_OVERRIDE;
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virtual bool ComputeVisibility(nsDisplayListBuilder* aBuilder,
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nsRegion* aVisibleRegion,
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const nsRect& aAllowVisibleRegionExpansion) MOZ_OVERRIDE;
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NS_DISPLAY_DECL_NAME("Plugin", TYPE_PLUGIN)
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virtual already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
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LayerManager* aManager,
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const ContainerLayerParameters& aContainerParameters) MOZ_OVERRIDE
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{
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return static_cast<nsObjectFrame*>(mFrame)->BuildLayer(aBuilder,
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aManager,
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this,
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aContainerParameters);
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}
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virtual LayerState GetLayerState(nsDisplayListBuilder* aBuilder,
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LayerManager* aManager,
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const ContainerLayerParameters& aParameters) MOZ_OVERRIDE
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{
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return static_cast<nsObjectFrame*>(mFrame)->GetLayerState(aBuilder,
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aManager);
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}
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};
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#endif /* nsObjectFrame_h___ */
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