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comparison: layout/generic/nsSubDocumentFrame.h
layout/generic/nsSubDocumentFrame.h
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef NSSUBDOCUMENTFRAME_H_ | |
| 7 #define NSSUBDOCUMENTFRAME_H_ | |
| 8 | |
| 9 #include "mozilla/Attributes.h" | |
| 10 #include "nsLeafFrame.h" | |
| 11 #include "nsIReflowCallback.h" | |
| 12 #include "nsFrameLoader.h" | |
| 13 | |
| 14 /****************************************************************************** | |
| 15 * nsSubDocumentFrame | |
| 16 *****************************************************************************/ | |
| 17 class nsSubDocumentFrame : public nsLeafFrame, | |
| 18 public nsIReflowCallback | |
| 19 { | |
| 20 public: | |
| 21 NS_DECL_QUERYFRAME_TARGET(nsSubDocumentFrame) | |
| 22 NS_DECL_FRAMEARENA_HELPERS | |
| 23 | |
| 24 nsSubDocumentFrame(nsStyleContext* aContext); | |
| 25 | |
| 26 #ifdef DEBUG_FRAME_DUMP | |
| 27 void List(FILE* out = stderr, const char* aPrefix = "", uint32_t aFlags = 0) const MOZ_OVERRIDE; | |
| 28 virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE; | |
| 29 #endif | |
| 30 | |
| 31 NS_DECL_QUERYFRAME | |
| 32 | |
| 33 virtual nsIAtom* GetType() const MOZ_OVERRIDE; | |
| 34 | |
| 35 virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE | |
| 36 { | |
| 37 // nsLeafFrame is already eReplacedContainsBlock, but that's somewhat bogus | |
| 38 return nsLeafFrame::IsFrameOfType(aFlags & | |
| 39 ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock)); | |
| 40 } | |
| 41 | |
| 42 virtual void Init(nsIContent* aContent, | |
| 43 nsIFrame* aParent, | |
| 44 nsIFrame* aPrevInFlow) MOZ_OVERRIDE; | |
| 45 | |
| 46 virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE; | |
| 47 | |
| 48 virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE; | |
| 49 virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE; | |
| 50 | |
| 51 virtual mozilla::IntrinsicSize GetIntrinsicSize() MOZ_OVERRIDE; | |
| 52 virtual nsSize GetIntrinsicRatio() MOZ_OVERRIDE; | |
| 53 | |
| 54 virtual nsSize ComputeAutoSize(nsRenderingContext *aRenderingContext, | |
| 55 nsSize aCBSize, nscoord aAvailableWidth, | |
| 56 nsSize aMargin, nsSize aBorder, | |
| 57 nsSize aPadding, bool aShrinkWrap) MOZ_OVERRIDE; | |
| 58 | |
| 59 virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext, | |
| 60 nsSize aCBSize, nscoord aAvailableWidth, | |
| 61 nsSize aMargin, nsSize aBorder, nsSize aPadding, | |
| 62 uint32_t aFlags) MOZ_OVERRIDE; | |
| 63 | |
| 64 virtual nsresult Reflow(nsPresContext* aPresContext, | |
| 65 nsHTMLReflowMetrics& aDesiredSize, | |
| 66 const nsHTMLReflowState& aReflowState, | |
| 67 nsReflowStatus& aStatus) MOZ_OVERRIDE; | |
| 68 | |
| 69 virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, | |
| 70 const nsRect& aDirtyRect, | |
| 71 const nsDisplayListSet& aLists) MOZ_OVERRIDE; | |
| 72 | |
| 73 virtual nsresult AttributeChanged(int32_t aNameSpaceID, | |
| 74 nsIAtom* aAttribute, | |
| 75 int32_t aModType) MOZ_OVERRIDE; | |
| 76 | |
| 77 // if the content is "visibility:hidden", then just hide the view | |
| 78 // and all our contents. We don't extend "visibility:hidden" to | |
| 79 // the child content ourselves, since it belongs to a different | |
| 80 // document and CSS doesn't inherit in there. | |
| 81 virtual bool SupportsVisibilityHidden() MOZ_OVERRIDE { return false; } | |
| 82 | |
| 83 #ifdef ACCESSIBILITY | |
| 84 virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE; | |
| 85 #endif | |
| 86 | |
| 87 nsresult GetDocShell(nsIDocShell **aDocShell); | |
| 88 nsresult BeginSwapDocShells(nsIFrame* aOther); | |
| 89 void EndSwapDocShells(nsIFrame* aOther); | |
| 90 nsView* EnsureInnerView(); | |
| 91 nsIFrame* GetSubdocumentRootFrame(); | |
| 92 nsIntSize GetSubdocumentSize(); | |
| 93 | |
| 94 // nsIReflowCallback | |
| 95 virtual bool ReflowFinished() MOZ_OVERRIDE; | |
| 96 virtual void ReflowCallbackCanceled() MOZ_OVERRIDE; | |
| 97 | |
| 98 bool ShouldClipSubdocument() | |
| 99 { | |
| 100 nsFrameLoader* frameLoader = FrameLoader(); | |
| 101 return !frameLoader || frameLoader->ShouldClipSubdocument(); | |
| 102 } | |
| 103 | |
| 104 bool ShouldClampScrollPosition() | |
| 105 { | |
| 106 nsFrameLoader* frameLoader = FrameLoader(); | |
| 107 return !frameLoader || frameLoader->ShouldClampScrollPosition(); | |
| 108 } | |
| 109 | |
| 110 /** | |
| 111 * Return true if pointer event hit-testing should be allowed to target | |
| 112 * content in the subdocument. | |
| 113 */ | |
| 114 bool PassPointerEventsToChildren(); | |
| 115 | |
| 116 protected: | |
| 117 friend class AsyncFrameInit; | |
| 118 | |
| 119 // Helper method to look up the HTML marginwidth & marginheight attributes | |
| 120 nsIntSize GetMarginAttributes(); | |
| 121 | |
| 122 nsFrameLoader* FrameLoader(); | |
| 123 | |
| 124 bool IsInline() { return mIsInline; } | |
| 125 | |
| 126 virtual nscoord GetIntrinsicWidth() MOZ_OVERRIDE; | |
| 127 virtual nscoord GetIntrinsicHeight() MOZ_OVERRIDE; | |
| 128 | |
| 129 // Show our document viewer. The document viewer is hidden via a script | |
| 130 // runner, so that we can save and restore the presentation if we're | |
| 131 // being reframed. | |
| 132 void ShowViewer(); | |
| 133 | |
| 134 /* Obtains the frame we should use for intrinsic size information if we are | |
| 135 * an HTML <object>, <embed> or <applet> (a replaced element - not <iframe>) | |
| 136 * and our sub-document has an intrinsic size. The frame returned is the | |
| 137 * frame for the document element of the document we're embedding. | |
| 138 * | |
| 139 * Called "Obtain*" and not "Get*" because of comment on GetDocShell that | |
| 140 * says it should be called ObtainDocShell because of it's side effects. | |
| 141 */ | |
| 142 nsIFrame* ObtainIntrinsicSizeFrame(); | |
| 143 | |
| 144 nsRefPtr<nsFrameLoader> mFrameLoader; | |
| 145 nsView* mInnerView; | |
| 146 bool mIsInline; | |
| 147 bool mPostedReflowCallback; | |
| 148 bool mDidCreateDoc; | |
| 149 bool mCallingShow; | |
| 150 }; | |
| 151 | |
| 152 #endif /* NSSUBDOCUMENTFRAME_H_ */ |
