mirror of
https://github.com/classilla/tenfourfox.git
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168 lines
5.9 KiB
C++
168 lines
5.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; 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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#ifndef NSSUBDOCUMENTFRAME_H_
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#define NSSUBDOCUMENTFRAME_H_
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#include "mozilla/Attributes.h"
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#include "nsLeafFrame.h"
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#include "nsIReflowCallback.h"
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#include "nsFrameLoader.h"
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#include "Units.h"
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/******************************************************************************
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* nsSubDocumentFrame
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*****************************************************************************/
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class nsSubDocumentFrame : public nsLeafFrame,
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public nsIReflowCallback
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{
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public:
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NS_DECL_QUERYFRAME_TARGET(nsSubDocumentFrame)
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NS_DECL_FRAMEARENA_HELPERS
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explicit nsSubDocumentFrame(nsStyleContext* aContext);
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#ifdef DEBUG_FRAME_DUMP
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void List(FILE* out = stderr, const char* aPrefix = "", uint32_t aFlags = 0) const override;
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virtual nsresult GetFrameName(nsAString& aResult) const override;
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#endif
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NS_DECL_QUERYFRAME
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virtual nsIAtom* GetType() const override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override
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{
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// nsLeafFrame is already eReplacedContainsBlock, but that's somewhat bogus
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return nsLeafFrame::IsFrameOfType(aFlags &
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~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
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}
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virtual void Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
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virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
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virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
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virtual mozilla::IntrinsicSize GetIntrinsicSize() override;
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virtual nsSize GetIntrinsicRatio() override;
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virtual mozilla::LogicalSize
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ComputeAutoSize(nsRenderingContext *aRenderingContext,
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mozilla::WritingMode aWritingMode,
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const mozilla::LogicalSize& aCBSize,
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nscoord aAvailableISize,
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const mozilla::LogicalSize& aMargin,
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const mozilla::LogicalSize& aBorder,
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const mozilla::LogicalSize& aPadding,
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bool aShrinkWrap) override;
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virtual mozilla::LogicalSize
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ComputeSize(nsRenderingContext *aRenderingContext,
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mozilla::WritingMode aWritingMode,
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const mozilla::LogicalSize& aCBSize,
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nscoord aAvailableISize,
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const mozilla::LogicalSize& aMargin,
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const mozilla::LogicalSize& aBorder,
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const mozilla::LogicalSize& aPadding,
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ComputeSizeFlags aFlags) override;
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virtual void Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) override;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) override;
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) override;
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// if the content is "visibility:hidden", then just hide the view
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// and all our contents. We don't extend "visibility:hidden" to
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// the child content ourselves, since it belongs to a different
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// document and CSS doesn't inherit in there.
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virtual bool SupportsVisibilityHidden() override { return false; }
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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() override;
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#endif
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nsresult GetDocShell(nsIDocShell **aDocShell);
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nsresult BeginSwapDocShells(nsIFrame* aOther);
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void EndSwapDocShells(nsIFrame* aOther);
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nsView* EnsureInnerView();
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nsIFrame* GetSubdocumentRootFrame();
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enum {
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IGNORE_PAINT_SUPPRESSION = 0x1
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};
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nsIPresShell* GetSubdocumentPresShellForPainting(uint32_t aFlags);
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mozilla::ScreenIntSize GetSubdocumentSize();
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// nsIReflowCallback
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virtual bool ReflowFinished() override;
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virtual void ReflowCallbackCanceled() override;
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bool ShouldClipSubdocument()
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{
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nsFrameLoader* frameLoader = FrameLoader();
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return !frameLoader || frameLoader->ShouldClipSubdocument();
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}
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bool ShouldClampScrollPosition()
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{
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nsFrameLoader* frameLoader = FrameLoader();
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return !frameLoader || frameLoader->ShouldClampScrollPosition();
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}
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/**
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* Return true if pointer event hit-testing should be allowed to target
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* content in the subdocument.
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*/
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bool PassPointerEventsToChildren();
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protected:
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friend class AsyncFrameInit;
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// Helper method to look up the HTML marginwidth & marginheight attributes.
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mozilla::CSSIntSize GetMarginAttributes();
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nsFrameLoader* FrameLoader();
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bool IsInline() { return mIsInline; }
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virtual nscoord GetIntrinsicISize() override;
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virtual nscoord GetIntrinsicBSize() override;
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// Show our document viewer. The document viewer is hidden via a script
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// runner, so that we can save and restore the presentation if we're
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// being reframed.
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void ShowViewer();
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/* Obtains the frame we should use for intrinsic size information if we are
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* an HTML <object>, <embed> or <applet> (a replaced element - not <iframe>)
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* and our sub-document has an intrinsic size. The frame returned is the
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* frame for the document element of the document we're embedding.
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*
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* Called "Obtain*" and not "Get*" because of comment on GetDocShell that
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* says it should be called ObtainDocShell because of its side effects.
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*/
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nsIFrame* ObtainIntrinsicSizeFrame();
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RefPtr<nsFrameLoader> mFrameLoader;
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nsView* mInnerView;
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bool mIsInline;
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bool mPostedReflowCallback;
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bool mDidCreateDoc;
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bool mCallingShow;
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};
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#endif /* NSSUBDOCUMENTFRAME_H_ */
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