зеркало из https://github.com/mozilla/pjs.git
574 строки
26 KiB
C++
574 строки
26 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsFrame_h___
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#define nsFrame_h___
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#include "nsIFrame.h"
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#include "nsRect.h"
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#include "nsString.h"
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#include "prlog.h"
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#ifdef NS_DEBUG
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#include "nsIFrameDebug.h"
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#endif
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#include "nsIPresShell.h"
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#include "nsHTMLReflowCommand.h"
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#include "nsIFrameSelection.h"
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#include "nsHTMLReflowState.h"
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#include "nsHTMLReflowMetrics.h"
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/**
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* nsFrame logging constants. We redefine the nspr
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* PRLogModuleInfo.level field to be a bitfield. Each bit controls a
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* specific type of logging. Each logging operation has associated
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* inline methods defined below.
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*/
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#define NS_FRAME_TRACE_CALLS 0x1
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#define NS_FRAME_TRACE_PUSH_PULL 0x2
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#define NS_FRAME_TRACE_CHILD_REFLOW 0x4
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#define NS_FRAME_TRACE_NEW_FRAMES 0x8
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#define NS_FRAME_LOG_TEST(_lm,_bit) (PRIntn((_lm)->level) & (_bit))
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#ifdef NS_DEBUG
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#define NS_FRAME_LOG(_bit,_args) \
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PR_BEGIN_MACRO \
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if (NS_FRAME_LOG_TEST(nsIFrameDebug::GetLogModuleInfo(),_bit)) { \
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PR_LogPrint _args; \
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} \
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PR_END_MACRO
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#else
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#define NS_FRAME_LOG(_bit,_args)
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#endif
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// XXX Need to rework this so that logging is free when it's off
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#ifdef NS_DEBUG
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#define NS_FRAME_TRACE_IN(_method) Trace(_method, PR_TRUE)
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#define NS_FRAME_TRACE_OUT(_method) Trace(_method, PR_FALSE)
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// XXX remove me
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#define NS_FRAME_TRACE_MSG(_bit,_args) \
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PR_BEGIN_MACRO \
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if (NS_FRAME_LOG_TEST(nsIFrameDebug::GetLogModuleInfo(),_bit)) { \
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TraceMsg _args; \
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} \
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PR_END_MACRO
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#define NS_FRAME_TRACE(_bit,_args) \
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PR_BEGIN_MACRO \
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if (NS_FRAME_LOG_TEST(nsIFrameDebug::GetLogModuleInfo(),_bit)) { \
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TraceMsg _args; \
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} \
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PR_END_MACRO
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#define NS_FRAME_TRACE_REFLOW_IN(_method) Trace(_method, PR_TRUE)
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#define NS_FRAME_TRACE_REFLOW_OUT(_method, _status) \
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Trace(_method, PR_FALSE, _status)
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#else
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#define NS_FRAME_TRACE(_bits,_args)
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#define NS_FRAME_TRACE_IN(_method)
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#define NS_FRAME_TRACE_OUT(_method)
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#define NS_FRAME_TRACE_MSG(_bits,_args)
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#define NS_FRAME_TRACE_REFLOW_IN(_method)
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#define NS_FRAME_TRACE_REFLOW_OUT(_method, _status)
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#endif
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// handy utilities
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void SetFontFromStyle(nsIRenderingContext* aRC, nsStyleContext* aSC);
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//----------------------------------------------------------------------
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/**
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* Implementation of a simple frame that's not splittable and has no
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* child frames.
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*
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* Sets the NS_FRAME_SYNCHRONIZE_FRAME_AND_VIEW bit, so the default
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* behavior is to keep the frame and view position and size in sync.
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*/
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class nsFrame : public nsIFrame
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#ifdef NS_DEBUG
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, public nsIFrameDebug
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#endif
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{
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public:
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/**
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* Create a new "empty" frame that maps a given piece of content into a
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* 0,0 area.
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*/
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friend nsresult NS_NewEmptyFrame(nsIPresShell* aShell, nsIFrame** aInstancePtrResult);
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// Overloaded new operator. Initializes the memory to 0 and relies on an arena
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// (which comes from the presShell) to perform the allocation.
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void* operator new(size_t sz, nsIPresShell* aPresShell) CPP_THROW_NEW;
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// Overridden to prevent the global delete from being called, since the memory
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// came out of an nsIArena instead of the global delete operator's heap.
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// XXX Would like to make this private some day, but our UNIX compilers can't
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// deal with it.
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void operator delete(void* aPtr, size_t sz);
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private:
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// The normal operator new is disallowed on nsFrames.
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void* operator new(size_t sz) CPP_THROW_NEW { return nsnull; };
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public:
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// nsISupports
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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// nsIFrame
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NS_IMETHOD Init(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsStyleContext* aContext,
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nsIFrame* asPrevInFlow);
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NS_IMETHOD SetInitialChildList(nsIPresContext* aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList);
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NS_IMETHOD AppendFrames(nsIPresContext* aPresContext,
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nsIPresShell& aPresShell,
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nsIAtom* aListName,
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nsIFrame* aFrameList);
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NS_IMETHOD InsertFrames(nsIPresContext* aPresContext,
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nsIPresShell& aPresShell,
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nsIAtom* aListName,
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nsIFrame* aPrevFrame,
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nsIFrame* aFrameList);
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NS_IMETHOD RemoveFrame(nsIPresContext* aPresContext,
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nsIPresShell& aPresShell,
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nsIAtom* aListName,
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nsIFrame* aOldFrame);
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NS_IMETHOD ReplaceFrame(nsIPresContext* aPresContext,
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nsIPresShell& aPresShell,
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nsIAtom* aListName,
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nsIFrame* aOldFrame,
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nsIFrame* aNewFrame);
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NS_IMETHOD Destroy(nsIPresContext* aPresContext);
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NS_IMETHOD CalcBorderPadding(nsMargin& aBorderPadding) const;
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virtual nsStyleContext* GetAdditionalStyleContext(PRInt32 aIndex) const;
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virtual void SetAdditionalStyleContext(PRInt32 aIndex,
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nsStyleContext* aStyleContext);
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NS_IMETHOD GetAdditionalChildListName(PRInt32 aIndex, nsIAtom** aListName) const;
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NS_IMETHOD FirstChild(nsIPresContext* aPresContext,
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nsIAtom* aListName,
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nsIFrame** aFirstChild) const;
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NS_IMETHOD Paint(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer,
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PRUint32 aFlags = 0);
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NS_IMETHOD HandleEvent(nsIPresContext* aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD GetContentForEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent,
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nsIContent** aContent);
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NS_IMETHOD GetCursor(nsIPresContext* aPresContext,
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nsPoint& aPoint,
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PRInt32& aCursor);
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NS_IMETHOD GetFrameForPoint(nsIPresContext* aPresContext,
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const nsPoint& aPoint,
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nsFramePaintLayer aWhichLayer,
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nsIFrame** aFrame);
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NS_IMETHOD GetPointFromOffset(nsIPresContext* inPresContext,
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nsIRenderingContext* inRendContext,
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PRInt32 inOffset,
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nsPoint* outPoint);
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NS_IMETHOD GetChildFrameContainingOffset(PRInt32 inContentOffset,
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PRBool inHint,
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PRInt32* outFrameContentOffset,
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nsIFrame* *outChildFrame);
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static nsresult GetNextPrevLineFromeBlockFrame(nsIPresContext* aPresContext,
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nsPeekOffsetStruct *aPos,
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nsIFrame *aBlockFrame,
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PRInt32 aLineStart,
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PRInt8 aOutSideLimit
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);
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NS_IMETHOD ContentChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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nsISupports* aSubContent);
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NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType,
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PRInt32 aHint);
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NS_IMETHOD ContentStateChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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PRInt32 aHint);
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NS_IMETHOD IsSplittable(nsSplittableType& aIsSplittable) const;
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NS_IMETHOD GetPrevInFlow(nsIFrame** aPrevInFlow) const;
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NS_IMETHOD SetPrevInFlow(nsIFrame*);
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NS_IMETHOD GetNextInFlow(nsIFrame** aNextInFlow) const;
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NS_IMETHOD SetNextInFlow(nsIFrame*);
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NS_IMETHOD GetView(nsIPresContext* aPresContext, nsIView** aView) const;
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NS_IMETHOD SetView(nsIPresContext* aPresContext, nsIView* aView);
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NS_IMETHOD GetParentWithView(nsIPresContext* aPresContext, nsIFrame** aParent) const;
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NS_IMETHOD GetOffsetFromView(nsIPresContext* aPresContext, nsPoint& aOffset, nsIView** aView) const;
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NS_IMETHOD GetOriginToViewOffset(nsIPresContext *aPresContext, nsPoint& aOffset, nsIView **aView) const;
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NS_IMETHOD GetWindow(nsIPresContext* aPresContext, nsIWidget**) const;
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NS_IMETHOD GetFrameType(nsIAtom** aType) const;
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NS_IMETHOD IsPercentageBase(PRBool& aBase) const;
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NS_IMETHOD Scrolled(nsIView *aView);
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#ifdef NS_DEBUG
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NS_IMETHOD List(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent) const;
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NS_IMETHOD GetFrameName(nsAString& aResult) const;
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NS_IMETHOD DumpRegressionData(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent, PRBool aIncludeStyleData);
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NS_IMETHOD VerifyTree() const;
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#endif
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NS_IMETHOD SetSelected(nsIPresContext* aPresContext, nsIDOMRange *aRange,PRBool aSelected, nsSpread aSpread);
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NS_IMETHOD GetSelected(PRBool *aSelected) const;
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NS_IMETHOD IsSelectable(PRBool* aIsSelectable, PRUint8* aSelectStyle) const;
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NS_IMETHOD GetSelectionController(nsIPresContext *aPresContext, nsISelectionController **aSelCon);
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NS_IMETHOD PeekOffset(nsIPresContext* aPresContext, nsPeekOffsetStruct *aPos) ;
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NS_IMETHOD CheckVisibility(nsIPresContext* aContext, PRInt32 aStartIndex, PRInt32 aEndIndex, PRBool aRecurse, PRBool *aFinished, PRBool *_retval);
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NS_IMETHOD PeekOffsetParagraph(nsIPresContext* aPresContext,
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nsPeekOffsetStruct *aPos);
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NS_IMETHOD GetOffsets(PRInt32 &aStart, PRInt32 &aEnd) const;
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NS_IMETHOD ReflowDirtyChild(nsIPresShell* aPresShell, nsIFrame* aChild);
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#ifdef ACCESSIBILITY
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NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
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#endif
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NS_IMETHOD GetParentStyleContextFrame(nsIPresContext* aPresContext,
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nsIFrame** aProviderFrame,
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PRBool* aIsChild);
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// Check Style Visibility and mState for Selection (when printing)
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NS_IMETHOD IsVisibleForPainting(nsIPresContext * aPresContext,
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nsIRenderingContext& aRenderingContext,
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PRBool aCheckVis,
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PRBool* aIsVisible);
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NS_IMETHOD IsEmpty(nsCompatibility aCompatMode,
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PRBool aIsPre,
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PRBool* aResult);
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// nsIHTMLReflow
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NS_IMETHOD WillReflow(nsIPresContext* aPresContext);
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NS_IMETHOD Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD DidReflow(nsIPresContext* aPresContext,
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const nsHTMLReflowState* aReflowState,
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nsDidReflowStatus aStatus);
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NS_IMETHOD CanContinueTextRun(PRBool& aContinueTextRun) const;
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NS_IMETHOD AdjustFrameSize(nscoord aExtraSpace, nscoord& aUsedSpace);
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NS_IMETHOD TrimTrailingWhiteSpace(nsIPresContext* aPresContext,
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nsIRenderingContext& aRC,
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nscoord& aDeltaWidth);
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// Selection Methods
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// XXX Doc me... (in nsIFrame.h puhleeze)
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// XXX If these are selection specific, then the name should imply selection
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// rather than generic event processing, e.g., SelectionHandlePress...
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NS_IMETHOD HandlePress(nsIPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD HandleMultiplePress(nsIPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD HandleDrag(nsIPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD HandleRelease(nsIPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD GetContentAndOffsetsFromPoint(nsIPresContext* aCX,
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const nsPoint& aPoint,
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nsIContent ** aNewContent,
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PRInt32& aContentOffset,
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PRInt32& aContentOffsetEnd,
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PRBool& aBeginFrameContent);
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NS_IMETHOD PeekBackwardAndForward(nsSelectionAmount aAmountBack,
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nsSelectionAmount aAmountForward,
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PRInt32 aStartPos,
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nsIPresContext* aPresContext,
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PRBool aJumpLines);
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//--------------------------------------------------
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// Additional methods
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// Invalidate part of the frame by asking the view manager to repaint.
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// aDamageRect is in the frame's local coordinate space
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void Invalidate(nsIPresContext* aPresContext,
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const nsRect& aDamageRect,
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PRBool aImmediate = PR_FALSE) const;
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// Helper function to return the index in parent of the frame's content
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// object. Returns -1 on error or if the frame doesn't have a content object
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static PRInt32 ContentIndexInContainer(const nsIFrame* aFrame);
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// Helper function that tests if the frame tree is too deep; if it
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// is it marks the frame as "unflowable" and zeros out the metrics
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// and returns PR_TRUE. Otherwise, the frame is unmarked
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// "unflowable" and the metrics are not touched and PR_FALSE is
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// returned.
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PRBool IsFrameTreeTooDeep(const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aMetrics);
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virtual nsresult GetClosestViewForFrame(nsIPresContext* aPresContext,
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nsIFrame *aFrame,
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nsIView **aView);
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static nsresult CreateAndPostReflowCommand(nsIPresShell* aPresShell,
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nsIFrame* aTargetFrame,
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nsReflowType aReflowType,
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nsIFrame* aChildFrame,
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nsIAtom* aAttribute,
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nsIAtom* aListName);
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// Do the work for getting the parent style context frame so that
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// other frame's |GetParentStyleContextFrame| methods can call this
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// method on *another* frame. (This function handles out-of-flow
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// frames by using the frame manager's placeholder map and it handles
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// block-within-inline by calling |GetIBSpecialParent|.)
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nsresult DoGetParentStyleContextFrame(nsIPresContext* aPresContext,
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nsIFrame** aProviderFrame,
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PRBool* aIsChild);
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nsresult GetIBSpecialParent(nsIPresContext* aPresContext,
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nsIFrame** aSpecialParent);
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//Mouse Capturing code used by the frames to tell the view to capture all the following events
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NS_IMETHOD CaptureMouse(nsIPresContext* aPresContext, PRBool aGrabMouseEvents);
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PRBool IsMouseCaptured(nsIPresContext* aPresContext);
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virtual void* GetProperty(nsIPresContext* aPresContext,
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nsIAtom* aPropertyName,
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PRBool aRemoveProperty) const;
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virtual nsresult SetProperty(nsIPresContext* aPresContext,
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nsIAtom* aPropertyName,
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void* aPropertyValue,
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NSFramePropertyDtorFunc aPropDtorFunc);
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NS_IMETHOD GetStyleDataExternal(nsStyleStructID aSID,
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const nsStyleStruct*& aStyleStruct) const;
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#ifdef IBMBIDI
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NS_IMETHOD GetBidiProperty(nsIPresContext* aPresContext,
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nsIAtom* aPropertyName,
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void** aPropertyValue,
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size_t aSize ) const;
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NS_IMETHOD SetBidiProperty(nsIPresContext* aPresContext,
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nsIAtom* aPropertyName,
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void* aPropertyValue) ;
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#endif // IBMBIDI
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#ifdef NS_DEBUG
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/**
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* Tracing method that writes a method enter/exit routine to the
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* nspr log using the nsIFrame log module. The tracing is only
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* done when the NS_FRAME_TRACE_CALLS bit is set in the log module's
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* level field.
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*/
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void Trace(const char* aMethod, PRBool aEnter);
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void Trace(const char* aMethod, PRBool aEnter, nsReflowStatus aStatus);
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void TraceMsg(const char* fmt, ...);
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// Helper function that verifies that each frame in the list has the
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// NS_FRAME_IS_DIRTY bit set
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static void VerifyDirtyBitSet(nsIFrame* aFrameList);
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void ListTag(FILE* out) const {
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ListTag(out, (nsIFrame*)this);
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}
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static void ListTag(FILE* out, nsIFrame* aFrame) {
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nsAutoString tmp;
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nsIFrameDebug* frameDebug;
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if (NS_SUCCEEDED(aFrame->QueryInterface(NS_GET_IID(nsIFrameDebug), (void**)&frameDebug))) {
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frameDebug->GetFrameName(tmp);
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}
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fputs(NS_LossyConvertUCS2toASCII(tmp).get(), out);
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fprintf(out, "@%p", NS_STATIC_CAST(void*, aFrame));
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}
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static void IndentBy(FILE* out, PRInt32 aIndent) {
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while (--aIndent >= 0) fputs(" ", out);
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}
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/**
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* Dump out the "base classes" regression data. This should dump
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* out the interior data, not the "frame" XML container. And it
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* should call the base classes same named method before doing
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* anything specific in a derived class. This means that derived
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* classes need not override DumpRegressionData unless they need
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* some custom behavior that requires changing how the outer "frame"
|
|
* XML container is dumped.
|
|
*/
|
|
virtual void DumpBaseRegressionData(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent, PRBool aIncludeStyleData);
|
|
|
|
nsresult MakeFrameName(const nsAString& aKind, nsAString& aResult) const;
|
|
|
|
// Display Reflow Debugging
|
|
static void* DisplayReflowEnter(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
const nsHTMLReflowState& aReflowState);
|
|
static void DisplayReflowExit(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsHTMLReflowMetrics& aMetrics,
|
|
PRUint32 aStatus,
|
|
void* aFrameTreeNode);
|
|
|
|
static void DisplayReflowStartup();
|
|
static void DisplayReflowShutdown();
|
|
#endif
|
|
|
|
protected:
|
|
// Protected constructor and destructor
|
|
nsFrame();
|
|
virtual ~nsFrame();
|
|
|
|
/**
|
|
* To be called by |Paint| of this class or derived classes to paint
|
|
* the background, border, and outline, when in the correct layer to
|
|
* do so.
|
|
*/
|
|
void PaintSelf(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
PRIntn aSkipSides = 0,
|
|
PRBool aUsePrintBackgroundSettings = PR_TRUE);
|
|
|
|
PRInt16 DisplaySelection(nsIPresContext* aPresContext, PRBool isOkToTurnOn = PR_FALSE);
|
|
|
|
//this will modify aPos and return the next frame ect.
|
|
NS_IMETHOD GetFrameFromDirection(nsIPresContext* aPresContext, nsPeekOffsetStruct *aPos);
|
|
|
|
// Style post processing hook
|
|
NS_IMETHOD DidSetStyleContext(nsIPresContext* aPresContext);
|
|
|
|
// Helper routine for determining whether to print selection
|
|
nsresult GetSelectionForVisCheck(nsIPresContext * aPresContext, nsISelection** aSelection);
|
|
|
|
//return the line number of the aFrame
|
|
static PRInt32 GetLineNumber(nsIFrame *aFrame);
|
|
//given a frame five me the first/last leaf available
|
|
static void GetLastLeaf(nsIPresContext* aPresContext, nsIFrame **aFrame);
|
|
static void GetFirstLeaf(nsIPresContext* aPresContext, nsIFrame **aFrame);
|
|
|
|
// Test if we are selecting a table object:
|
|
// Most table/cell selection requires that Ctrl (Cmd on Mac) key is down
|
|
// during a mouse click or drag. Exception is using Shift+click when
|
|
// already in "table/cell selection mode" to extend a block selection
|
|
// Get the parent content node and offset of the frame
|
|
// of the enclosing cell or table (if not inside a cell)
|
|
// aTarget tells us what table element to select (currently only cell and table supported)
|
|
// (enums for this are defined in nsIFrame.h)
|
|
NS_IMETHOD GetDataForTableSelection(nsIFrameSelection *aFrameSelection,
|
|
nsIPresShell *aPresShell, nsMouseEvent *aMouseEvent,
|
|
nsIContent **aParentContent, PRInt32 *aContentOffset,
|
|
PRInt32 *aTarget);
|
|
|
|
static void XMLQuote(nsString& aString);
|
|
|
|
virtual PRBool ParentDisablesSelection() const;
|
|
|
|
// Set the overflow clip rect into the rendering-context. Used for block-level
|
|
// elements and replaced elements that have 'overflow' set to 'hidden'. This
|
|
// member function assumes that the caller has checked that the clip property
|
|
// applies to its situation.
|
|
void SetOverflowClipRect(nsIRenderingContext& aRenderingContext);
|
|
|
|
protected:
|
|
NS_IMETHOD_(nsrefcnt) AddRef(void);
|
|
NS_IMETHOD_(nsrefcnt) Release(void);
|
|
};
|
|
|
|
// Start Display Reflow Debugging
|
|
#ifdef DEBUG
|
|
|
|
struct DR_cookie {
|
|
DR_cookie(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aMetrics,
|
|
nsReflowStatus& aStatus);
|
|
~DR_cookie();
|
|
void Change() const;
|
|
|
|
nsIPresContext* mPresContext;
|
|
nsIFrame* mFrame;
|
|
const nsHTMLReflowState& mReflowState;
|
|
nsHTMLReflowMetrics& mMetrics;
|
|
nsReflowStatus& mStatus;
|
|
void* mValue;
|
|
};
|
|
|
|
#define DISPLAY_REFLOW(dr_pres_context, dr_frame, dr_rf_state, dr_rf_metrics, dr_rf_status) \
|
|
DR_cookie dr_cookie(dr_pres_context, dr_frame, dr_rf_state, dr_rf_metrics, dr_rf_status);
|
|
#define DISPLAY_REFLOW_CHANGE() \
|
|
dr_cookie.Change();
|
|
|
|
#else
|
|
|
|
#define DISPLAY_REFLOW(dr_pres_context, dr_frame, dr_rf_state, dr_rf_metrics, dr_rf_status)
|
|
#define DISPLAY_REFLOW_CHANGE()
|
|
|
|
#endif
|
|
// End Display Reflow Debugging
|
|
|
|
// similar to NS_ENSURE_TRUE but with no return value
|
|
#define ENSURE_TRUE(x) \
|
|
PR_BEGIN_MACRO \
|
|
if (!(x)) { \
|
|
NS_WARNING("ENSURE_TRUE(" #x ") failed"); \
|
|
return; \
|
|
} \
|
|
PR_END_MACRO
|
|
#endif /* nsFrame_h___ */
|