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layout/generic/nsSubDocumentFrame.h@b8a032363ba2 (annotated)

layout/generic/nsSubDocumentFrame.h

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

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

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