1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/generic/nsSubDocumentFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,152 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef NSSUBDOCUMENTFRAME_H_
1.10 +#define NSSUBDOCUMENTFRAME_H_
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "nsLeafFrame.h"
1.14 +#include "nsIReflowCallback.h"
1.15 +#include "nsFrameLoader.h"
1.16 +
1.17 +/******************************************************************************
1.18 + * nsSubDocumentFrame
1.19 + *****************************************************************************/
1.20 +class nsSubDocumentFrame : public nsLeafFrame,
1.21 + public nsIReflowCallback
1.22 +{
1.23 +public:
1.24 + NS_DECL_QUERYFRAME_TARGET(nsSubDocumentFrame)
1.25 + NS_DECL_FRAMEARENA_HELPERS
1.26 +
1.27 + nsSubDocumentFrame(nsStyleContext* aContext);
1.28 +
1.29 +#ifdef DEBUG_FRAME_DUMP
1.30 + void List(FILE* out = stderr, const char* aPrefix = "", uint32_t aFlags = 0) const MOZ_OVERRIDE;
1.31 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
1.32 +#endif
1.33 +
1.34 + NS_DECL_QUERYFRAME
1.35 +
1.36 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.37 +
1.38 + virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
1.39 + {
1.40 + // nsLeafFrame is already eReplacedContainsBlock, but that's somewhat bogus
1.41 + return nsLeafFrame::IsFrameOfType(aFlags &
1.42 + ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
1.43 + }
1.44 +
1.45 + virtual void Init(nsIContent* aContent,
1.46 + nsIFrame* aParent,
1.47 + nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
1.48 +
1.49 + virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
1.50 +
1.51 + virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.52 + virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.53 +
1.54 + virtual mozilla::IntrinsicSize GetIntrinsicSize() MOZ_OVERRIDE;
1.55 + virtual nsSize GetIntrinsicRatio() MOZ_OVERRIDE;
1.56 +
1.57 + virtual nsSize ComputeAutoSize(nsRenderingContext *aRenderingContext,
1.58 + nsSize aCBSize, nscoord aAvailableWidth,
1.59 + nsSize aMargin, nsSize aBorder,
1.60 + nsSize aPadding, bool aShrinkWrap) MOZ_OVERRIDE;
1.61 +
1.62 + virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
1.63 + nsSize aCBSize, nscoord aAvailableWidth,
1.64 + nsSize aMargin, nsSize aBorder, nsSize aPadding,
1.65 + uint32_t aFlags) MOZ_OVERRIDE;
1.66 +
1.67 + virtual nsresult Reflow(nsPresContext* aPresContext,
1.68 + nsHTMLReflowMetrics& aDesiredSize,
1.69 + const nsHTMLReflowState& aReflowState,
1.70 + nsReflowStatus& aStatus) MOZ_OVERRIDE;
1.71 +
1.72 + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.73 + const nsRect& aDirtyRect,
1.74 + const nsDisplayListSet& aLists) MOZ_OVERRIDE;
1.75 +
1.76 + virtual nsresult AttributeChanged(int32_t aNameSpaceID,
1.77 + nsIAtom* aAttribute,
1.78 + int32_t aModType) MOZ_OVERRIDE;
1.79 +
1.80 + // if the content is "visibility:hidden", then just hide the view
1.81 + // and all our contents. We don't extend "visibility:hidden" to
1.82 + // the child content ourselves, since it belongs to a different
1.83 + // document and CSS doesn't inherit in there.
1.84 + virtual bool SupportsVisibilityHidden() MOZ_OVERRIDE { return false; }
1.85 +
1.86 +#ifdef ACCESSIBILITY
1.87 + virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
1.88 +#endif
1.89 +
1.90 + nsresult GetDocShell(nsIDocShell **aDocShell);
1.91 + nsresult BeginSwapDocShells(nsIFrame* aOther);
1.92 + void EndSwapDocShells(nsIFrame* aOther);
1.93 + nsView* EnsureInnerView();
1.94 + nsIFrame* GetSubdocumentRootFrame();
1.95 + nsIntSize GetSubdocumentSize();
1.96 +
1.97 + // nsIReflowCallback
1.98 + virtual bool ReflowFinished() MOZ_OVERRIDE;
1.99 + virtual void ReflowCallbackCanceled() MOZ_OVERRIDE;
1.100 +
1.101 + bool ShouldClipSubdocument()
1.102 + {
1.103 + nsFrameLoader* frameLoader = FrameLoader();
1.104 + return !frameLoader || frameLoader->ShouldClipSubdocument();
1.105 + }
1.106 +
1.107 + bool ShouldClampScrollPosition()
1.108 + {
1.109 + nsFrameLoader* frameLoader = FrameLoader();
1.110 + return !frameLoader || frameLoader->ShouldClampScrollPosition();
1.111 + }
1.112 +
1.113 + /**
1.114 + * Return true if pointer event hit-testing should be allowed to target
1.115 + * content in the subdocument.
1.116 + */
1.117 + bool PassPointerEventsToChildren();
1.118 +
1.119 +protected:
1.120 + friend class AsyncFrameInit;
1.121 +
1.122 + // Helper method to look up the HTML marginwidth & marginheight attributes
1.123 + nsIntSize GetMarginAttributes();
1.124 +
1.125 + nsFrameLoader* FrameLoader();
1.126 +
1.127 + bool IsInline() { return mIsInline; }
1.128 +
1.129 + virtual nscoord GetIntrinsicWidth() MOZ_OVERRIDE;
1.130 + virtual nscoord GetIntrinsicHeight() MOZ_OVERRIDE;
1.131 +
1.132 + // Show our document viewer. The document viewer is hidden via a script
1.133 + // runner, so that we can save and restore the presentation if we're
1.134 + // being reframed.
1.135 + void ShowViewer();
1.136 +
1.137 + /* Obtains the frame we should use for intrinsic size information if we are
1.138 + * an HTML <object>, <embed> or <applet> (a replaced element - not <iframe>)
1.139 + * and our sub-document has an intrinsic size. The frame returned is the
1.140 + * frame for the document element of the document we're embedding.
1.141 + *
1.142 + * Called "Obtain*" and not "Get*" because of comment on GetDocShell that
1.143 + * says it should be called ObtainDocShell because of it's side effects.
1.144 + */
1.145 + nsIFrame* ObtainIntrinsicSizeFrame();
1.146 +
1.147 + nsRefPtr<nsFrameLoader> mFrameLoader;
1.148 + nsView* mInnerView;
1.149 + bool mIsInline;
1.150 + bool mPostedReflowCallback;
1.151 + bool mDidCreateDoc;
1.152 + bool mCallingShow;
1.153 +};
1.154 +
1.155 +#endif /* NSSUBDOCUMENTFRAME_H_ */
