gecko-dev/layout/generic/nsFrameSetFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsHTMLFrameset_h___
#define nsHTMLFrameset_h___
#include "nsHTMLAtoms.h"
#include "nsHTMLContainerFrame.h"
#include "nsColor.h"
class nsIContent;
class nsIFrame;
class nsIPresContext;
class nsIRenderingContext;
struct nsRect;
struct nsHTMLReflowState;
struct nsSize;
class nsIAtom;
class nsIWebShell;
class nsHTMLFramesetBorderFrame;
struct nsGUIEvent;
class nsHTMLFramesetFrame;
#define NS_IFRAMESETFRAME_IID \
{ 0xf47deac0, 0x4200, 0x11d2, { 0x80, 0x3c, 0x0, 0x60, 0x8, 0x15, 0xa7, 0x91 } }
#define NO_COLOR 0xFFFFFFFA
struct nsBorderColor
{
nscolor mLeft;
nscolor mRight;
nscolor mTop;
nscolor mBottom;
nsBorderColor() { Set(NO_COLOR); }
~nsBorderColor() {}
void Set(nscolor aColor) { mLeft = mRight = mTop = mBottom = aColor; }
};
enum nsFramesetUnit {
eFramesetUnit_Free = 0,
eFramesetUnit_Percent,
eFramesetUnit_Pixel
};
enum nsFrameborder {
eFrameborder_Yes = 0,
eFrameborder_No,
eFrameborder_Notset
};
struct nsFramesetSpec {
nsFramesetUnit mUnit;
nscoord mValue;
};
struct nsFramesetDrag {
PRBool mVertical;
PRInt32 mIndex; // index of left col or top row of effected area
PRInt32 mChange; // + for left to right or top to bottom
nsHTMLFramesetFrame* mSource;
PRBool mConsumed;
nsFramesetDrag(PRBool aVertical, PRInt32 aIndex, PRInt32 aChange,
nsHTMLFramesetFrame* aSource)
: mVertical(aVertical), mIndex(aIndex), mChange(aChange),
mSource(aSource), mConsumed(PR_FALSE)
{}
nsFramesetDrag()
: mVertical(PR_TRUE), mIndex(-1), mChange(0),
mSource(nsnull), mConsumed(PR_TRUE)
{}
};
/*******************************************************************************
* nsHTMLFramesetFrame
******************************************************************************/
class nsHTMLFramesetFrame : public nsHTMLContainerFrame {
public:
nsHTMLFramesetFrame(nsIContent* aContent, nsIFrame* aParent);
virtual ~nsHTMLFramesetFrame();
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
static PRBool gDragInProgress;
static PRInt32 gMaxNumRowColSpecs;
void GetSizeOfChild(nsIFrame* aChild, nsSize& aSize);
void GetSizeOfChildAt(PRInt32 aIndexInParent, nsSize& aSize, nsPoint& aCellIndex);
static nsHTMLFramesetFrame* GetFramesetParent(nsIFrame* aChild);
NS_IMETHOD HandleEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus);
NS_IMETHOD GetFrameForPoint(const nsPoint& aPoint,
nsIFrame** aFrame);
NS_IMETHOD Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect);
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
nsFramesetDrag* aDrag,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD VerifyTree() const;
void StartMouseDrag(nsIPresContext& aPresContext, nsHTMLFramesetBorderFrame* aBorder,
nsGUIEvent* aEvent);
void MouseDrag(nsIPresContext& aPresContext, nsGUIEvent* aEvent);
void EndMouseDrag();
nsFrameborder GetParentFrameborder() { return mParentFrameborder; }
void SetParentFrameborder(nsFrameborder aValue) { mParentFrameborder = aValue; }
protected:
void CalculateRowCol(nsIPresContext* aPresContext, nscoord aSize, PRInt32 aNumSpecs,
nsFramesetSpec* aSpecs, nscoord* aValues);
virtual void GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize);
PRInt32 GetBorderWidth(nsIPresContext* aPresContext);
PRInt32 GetParentBorderWidth() { return mParentBorderWidth; }
void SetParentBorderWidth(PRInt32 aWidth) { mParentBorderWidth = aWidth; }
nscolor GetParentBorderColor() { return mParentBorderColor; }
void SetParentBorderColor(nscolor aColor) { mParentBorderColor = aColor; }
nsFrameborder GetFrameBorder(PRBool aStandardMode);
nsFrameborder GetFrameBorder(nsIContent* aContent, PRBool aStandardMode);
nscolor GetBorderColor();
nscolor GetBorderColor(nsIContent* aFrameContent);
PRBool GetNoResize(nsIFrame* aChildFrame);
virtual PRIntn GetSkipSides() const;
void ParseRowCol(nsIAtom* aAttrType, PRInt32& aNumSpecs, nsFramesetSpec** aSpecs);
PRInt32 ParseRowColSpec(nsString& aSpec, PRInt32 aMaxNumValues,
nsFramesetSpec* aSpecs);
void ReflowPlaceChild(nsIFrame* aChild,
nsIPresContext& aPresContext,
const nsHTMLReflowState& aReflowState,
nsPoint& aOffset,
nsSize& aSize,
nsFramesetDrag* aDrag = 0,
nsPoint* aCellIndex = 0);
PRBool CanResize(PRBool aVertical, PRBool aLeft);
PRBool CanChildResize(PRBool aVertical, PRBool aLeft, PRInt32 aChildX, PRBool aFrameset);
void SetBorderResize(PRInt32* aChildTypes, nsHTMLFramesetBorderFrame* aBorderFrame);
PRBool ChildIsFrameset(nsIFrame* aChild);
PRInt32 mNumRows;
nsFramesetSpec* mRowSpecs; // parsed, non-computed dimensions
nscoord* mRowSizes; // currently computed row sizes
PRInt32 mNumCols;
nsFramesetSpec* mColSpecs; // parsed, non-computed dimensions
nscoord* mColSizes; // currently computed col sizes
PRInt32 mNonBorderChildCount;
PRInt32 mNonBlankChildCount;
PRInt32 mEdgeVisibility;
nsBorderColor mEdgeColors;
nsFrameborder mParentFrameborder;
nscolor mParentBorderColor;
PRInt32 mParentBorderWidth;
nsHTMLFramesetBorderFrame* mDragger;
nsPoint mLastDragPoint;
PRInt32 mMinDrag;
PRInt32 mChildCount;
};
#if 0
/*******************************************************************************
* nsHTMLFrameset
******************************************************************************/
class nsHTMLFrameset : public nsHTMLContainer {
public:
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
NS_IMETHOD GetAttributeMappingFunction(nsMapAttributesFunc& aMapFunc) const;
NS_IMETHOD SetAttribute(nsIAtom* aAttribute, const nsString& aValue,
PRBool aNotify);
protected:
nsHTMLFrameset(nsIAtom* aTag, nsIWebShell* aParentWebShell);
virtual ~nsHTMLFrameset();
friend nsresult NS_NewHTMLFrameset(nsIHTMLContent** aInstancePtrResult,
nsIAtom* aTag, nsIWebShell* aWebShell);
//friend class nsHTMLFramesetFrame;
// this is held for a short time until the frame uses it, so it is not ref counted
nsIWebShell* mParentWebShell;
};
#endif
#endif