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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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 NSSUBDOCUMENTFRAME_H_
#define NSSUBDOCUMENTFRAME_H_
#include "mozilla/Attributes.h"
#include "nsAtomicContainerFrame.h"
#include "nsIReflowCallback.h"
#include "nsFrameLoader.h"
#include "Units.h"
/******************************************************************************
* nsSubDocumentFrame
*****************************************************************************/
class nsSubDocumentFrame : public nsAtomicContainerFrame,
public nsIReflowCallback
{
public:
NS_DECL_QUERYFRAME_TARGET(nsSubDocumentFrame)
NS_DECL_FRAMEARENA_HELPERS
explicit nsSubDocumentFrame(nsStyleContext* aContext);
#ifdef DEBUG_FRAME_DUMP
void List(FILE* out = stderr, const char* aPrefix = "", uint32_t aFlags = 0) const override;
virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif
NS_DECL_QUERYFRAME
virtual nsIAtom* GetType() const override;
virtual bool IsFrameOfType(uint32_t aFlags) const override
{
return nsAtomicContainerFrame::IsFrameOfType(aFlags &
~(nsIFrame::eReplaced |
nsIFrame::eReplacedSizing |
nsIFrame::eReplacedContainsBlock));
}
virtual void Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
virtual mozilla::IntrinsicSize GetIntrinsicSize() override;
virtual mozilla::AspectRatio GetIntrinsicRatio() override;
virtual mozilla::LogicalSize
ComputeAutoSize(nsRenderingContext* aRenderingContext,
mozilla::WritingMode aWritingMode,
const mozilla::LogicalSize& aCBSize,
nscoord aAvailableISize,
const mozilla::LogicalSize& aMargin,
const mozilla::LogicalSize& aBorder,
const mozilla::LogicalSize& aPadding,
ComputeSizeFlags aFlags) override;
virtual mozilla::LogicalSize
ComputeSize(nsRenderingContext* aRenderingContext,
mozilla::WritingMode aWritingMode,
const mozilla::LogicalSize& aCBSize,
nscoord aAvailableISize,
const mozilla::LogicalSize& aMargin,
const mozilla::LogicalSize& aBorder,
const mozilla::LogicalSize& aPadding,
ComputeSizeFlags aFlags) override;
virtual void Reflow(nsPresContext* aPresContext,
ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) override;
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType) override;
// if the content is "visibility:hidden", then just hide the view
// and all our contents. We don't extend "visibility:hidden" to
// the child content ourselves, since it belongs to a different
// document and CSS doesn't inherit in there.
virtual bool SupportsVisibilityHidden() override { return false; }
#ifdef ACCESSIBILITY
virtual mozilla::a11y::AccType AccessibleType() override;
#endif
nsresult GetDocShell(nsIDocShell **aDocShell);
nsresult BeginSwapDocShells(nsIFrame* aOther);
void EndSwapDocShells(nsIFrame* aOther);
nsView* EnsureInnerView();
nsIFrame* GetSubdocumentRootFrame();
enum {
IGNORE_PAINT_SUPPRESSION = 0x1
};
nsIPresShell* GetSubdocumentPresShellForPainting(uint32_t aFlags);
mozilla::ScreenIntSize GetSubdocumentSize();
// nsIReflowCallback
virtual bool ReflowFinished() override;
virtual void ReflowCallbackCanceled() override;
bool ShouldClipSubdocument()
{
nsFrameLoader* frameLoader = FrameLoader();
return !frameLoader || frameLoader->ShouldClipSubdocument();
}
bool ShouldClampScrollPosition()
{
nsFrameLoader* frameLoader = FrameLoader();
return !frameLoader || frameLoader->ShouldClampScrollPosition();
}
/**
* Return true if pointer event hit-testing should be allowed to target
* content in the subdocument.
*/
bool PassPointerEventsToChildren();
protected:
friend class AsyncFrameInit;
// Helper method to look up the HTML marginwidth & marginheight attributes.
mozilla::CSSIntSize GetMarginAttributes();
nsFrameLoader* FrameLoader();
bool IsInline() { return mIsInline; }
nscoord GetIntrinsicISize();
nscoord GetIntrinsicBSize();
// Show our document viewer. The document viewer is hidden via a script
// runner, so that we can save and restore the presentation if we're
// being reframed.
void ShowViewer();
/* Obtains the frame we should use for intrinsic size information if we are
* an HTML <object>, <embed> or <applet> (a replaced element - not <iframe>)
* and our sub-document has an intrinsic size. The frame returned is the
* frame for the document element of the document we're embedding.
*
* Called "Obtain*" and not "Get*" because of comment on GetDocShell that
* says it should be called ObtainDocShell because of its side effects.
*/
nsIFrame* ObtainIntrinsicSizeFrame();
RefPtr<nsFrameLoader> mFrameLoader;
nsView* mInnerView;
bool mIsInline;
bool mPostedReflowCallback;
bool mDidCreateDoc;
bool mCallingShow;
};
#endif /* NSSUBDOCUMENTFRAME_H_ */
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