зеркало из https://github.com/mozilla/gecko-dev.git
941 строка
29 KiB
C++
941 строка
29 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsIStyleContext_h___
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#define nsIStyleContext_h___
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#include "nslayout.h"
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#include "nsISupports.h"
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#include "nsColor.h"
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#include "nsCoord.h"
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#include "nsMargin.h"
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#include "nsRect.h"
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#include "nsFont.h"
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#include "nsVoidArray.h"
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#include "nsStyleCoord.h"
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#include "nsStyleStruct.h"
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#include "nsStyleConsts.h"
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#include "nsIStyleSet.h"
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#include "nsCOMPtr.h"
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#include "nsILanguageAtom.h"
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#include "nsIFrame.h"
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class nsISizeOfHandler;
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class nsIFrame;
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class nsIPresContext;
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class nsISupportsArray;
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class nsIStyleContext;
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inline void CalcSidesFor(const nsIFrame* aFrame, const nsStyleSides& aSides,
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PRUint8 aSpacing,
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const nscoord* aEnumTable, PRInt32 aNumEnums,
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nsMargin& aResult);
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#define SHARE_STYLECONTEXTS
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// The lifetime of these objects is managed by the nsIStyleContext.
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struct nsStyleFont : public nsStyleStruct {
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nsStyleFont(void)
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: mFont(nsnull, NS_FONT_STYLE_NORMAL, NS_FONT_VARIANT_NORMAL,
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE, 0),
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mFixedFont(nsnull, NS_FONT_STYLE_NORMAL, NS_FONT_VARIANT_NORMAL,
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE, 0)
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{}
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~nsStyleFont(void) {};
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nsFont mFont; // [inherited]
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nsFont mFixedFont; // [inherited]
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PRUint8 mFlags; // [inherited] See nsStyleConsts.h
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protected:
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nsStyleFont(const nsFont& aVariableFont, const nsFont& aFixedFont);
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nsStyleFont(nsIPresContext* aPresContext);
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};
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struct nsStyleColor : public nsStyleStruct {
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nsStyleColor(void) {}
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~nsStyleColor(void) {}
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nscolor mColor; // [inherited]
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PRUint8 mBackgroundAttachment; // [reset] See nsStyleConsts.h
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PRUint8 mBackgroundFlags; // [reset] See nsStyleConsts.h
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PRUint8 mBackgroundRepeat; // [reset] See nsStyleConsts.h
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nscolor mBackgroundColor; // [reset]
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nscoord mBackgroundXPosition; // [reset]
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nscoord mBackgroundYPosition; // [reset]
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nsString mBackgroundImage; // [reset] absolute url string
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PRUint8 mCursor; // [reset] See nsStyleConsts.h NS_STYLE_CURSOR_*
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nsString mCursorImage; // [reset] url string
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float mOpacity; // [inherited] percentage
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PRBool BackgroundIsTransparent() const {return (mBackgroundFlags &
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(NS_STYLE_BG_COLOR_TRANSPARENT | NS_STYLE_BG_IMAGE_NONE)) ==
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(NS_STYLE_BG_COLOR_TRANSPARENT | NS_STYLE_BG_IMAGE_NONE);}
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};
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#define BORDER_COLOR_DEFINED 0x80
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#define BORDER_COLOR_SPECIAL 0x40
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#define BORDER_STYLE_MASK 0x3F
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#define NS_SPACING_MARGIN 0
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#define NS_SPACING_PADDING 1
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#define NS_SPACING_BORDER 2
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struct nsStyleMargin: public nsStyleStruct {
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nsStyleMargin(void) {};
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~nsStyleMargin(void) {};
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nsStyleSides mMargin; // [reset] length, percent, auto, inherit
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PRBool GetMargin(nsMargin& aMargin) const
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{
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if (mHasCachedMargin) {
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aMargin = mCachedMargin;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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// XXX this is a deprecated method
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void CalcMarginFor(const nsIFrame* aFrame, nsMargin& aMargin) const
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{
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if (mHasCachedMargin) {
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aMargin = mCachedMargin;
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} else {
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CalcSidesFor(aFrame, mMargin, NS_SPACING_MARGIN, nsnull, 0, aMargin);
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}
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}
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protected:
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PRPackedBool mHasCachedMargin;
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nsMargin mCachedMargin;
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};
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struct nsStylePadding: public nsStyleStruct {
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nsStylePadding(void) {};
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~nsStylePadding(void) {};
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nsStyleSides mPadding; // [reset] length, percent, inherit
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PRBool GetPadding(nsMargin& aPadding) const
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{
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if (mHasCachedPadding) {
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aPadding = mCachedPadding;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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// XXX this is a deprecated method
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void CalcPaddingFor(const nsIFrame* aFrame, nsMargin& aPadding) const
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{
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if (mHasCachedPadding) {
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aPadding = mCachedPadding;
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} else {
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CalcSidesFor(aFrame, mPadding, NS_SPACING_PADDING, nsnull, 0, aPadding);
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}
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}
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protected:
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PRPackedBool mHasCachedPadding;
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nsMargin mCachedPadding;
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};
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struct nsStyleBorder: public nsStyleStruct {
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nsStyleBorder(void) {};
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~nsStyleBorder(void) {};
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nsStyleSides mBorder; // [reset] length, enum (see nsStyleConsts.h)
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nsStyleSides mBorderRadius; // [reset] length, percent, inherit
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PRUint8 mFloatEdge; // [reset] see nsStyleConsts.h
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PRBool GetBorder(nsMargin& aBorder) const
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{
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if (mHasCachedBorder) {
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aBorder = mCachedBorder;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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PRUint8 GetBorderStyle(PRUint8 aSide) const
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{
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NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
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return (mBorderStyle[aSide] & BORDER_STYLE_MASK);
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}
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void SetBorderStyle(PRUint8 aSide, PRUint8 aStyle)
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{
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NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
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mBorderStyle[aSide] &= ~BORDER_STYLE_MASK;
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mBorderStyle[aSide] |= (aStyle & BORDER_STYLE_MASK);
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}
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// PR_FALSE means TRANSPARENT
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PRBool GetBorderColor(PRUint8 aSide, nscolor& aColor) const
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{
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NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
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if ((mBorderStyle[aSide] & BORDER_COLOR_SPECIAL) == 0) {
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aColor = mBorderColor[aSide];
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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void SetBorderColor(PRUint8 aSide, nscolor aColor)
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{
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NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
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mBorderColor[aSide] = aColor;
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mBorderStyle[aSide] &= ~BORDER_COLOR_SPECIAL;
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mBorderStyle[aSide] |= BORDER_COLOR_DEFINED;
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}
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void SetBorderTransparent(PRUint8 aSide)
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{
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NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
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mBorderStyle[aSide] |= (BORDER_COLOR_DEFINED | BORDER_COLOR_SPECIAL);
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}
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void UnsetBorderColor(PRUint8 aSide)
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{
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NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
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mBorderStyle[aSide] &= BORDER_STYLE_MASK;
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}
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// XXX these are deprecated methods
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void CalcBorderFor(const nsIFrame* aFrame, nsMargin& aBorder) const
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{
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if (mHasCachedBorder) {
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aBorder = mCachedBorder;
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} else {
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CalcSidesFor(aFrame, mBorder, NS_SPACING_BORDER, mBorderWidths, 3, aBorder);
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}
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}
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protected:
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PRPackedBool mHasCachedBorder;
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nsMargin mCachedBorder;
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PRUint8 mBorderStyle[4]; // [reset] See nsStyleConsts.h
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nscolor mBorderColor[4]; // [reset]
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// XXX remove with deprecated methods
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nscoord mBorderWidths[3];
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};
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struct nsStyleBorderPadding: public nsStyleStruct {
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nsStyleBorderPadding(void) { mHasCachedBorderPadding = PR_FALSE; };
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~nsStyleBorderPadding(void) {};
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PRBool GetBorderPadding(nsMargin& aBorderPadding) const {
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if (mHasCachedBorderPadding) {
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aBorderPadding = mCachedBorderPadding;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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void SetBorderPadding(nsMargin aBorderPadding) {
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mCachedBorderPadding = aBorderPadding;
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mHasCachedBorderPadding = PR_TRUE;
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}
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protected:
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nsMargin mCachedBorderPadding;
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PRPackedBool mHasCachedBorderPadding;
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};
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struct nsStyleOutline: public nsStyleStruct {
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nsStyleOutline(void) {};
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~nsStyleOutline(void) {};
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nsStyleSides mOutlineRadius; // [reset] length, percent, inherit
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// (top=topLeft, right=topRight, bottom=bottomRight, left=bottomLeft)
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nsStyleCoord mOutlineWidth; // [reset] length, enum (see nsStyleConsts.h)
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PRBool GetOutlineWidth(nscoord& aWidth) const
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{
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if (mHasCachedOutline) {
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aWidth = mCachedOutlineWidth;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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PRUint8 GetOutlineStyle(void) const
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{
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return (mOutlineStyle & BORDER_STYLE_MASK);
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}
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void SetOutlineStyle(PRUint8 aStyle)
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{
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mOutlineStyle &= ~BORDER_STYLE_MASK;
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mOutlineStyle |= (aStyle & BORDER_STYLE_MASK);
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}
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// PR_FALSE means INVERT
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PRBool GetOutlineColor(nscolor& aColor) const
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{
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if ((mOutlineStyle & BORDER_COLOR_SPECIAL) == 0) {
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aColor = mOutlineColor;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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void SetOutlineColor(nscolor aColor)
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{
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mOutlineColor = aColor;
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mOutlineStyle &= ~BORDER_COLOR_SPECIAL;
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mOutlineStyle |= BORDER_COLOR_DEFINED;
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}
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void SetOutlineInvert(void)
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{
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mOutlineStyle |= (BORDER_COLOR_DEFINED | BORDER_COLOR_SPECIAL);
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}
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protected:
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PRPackedBool mHasCachedOutline;
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nscoord mCachedOutlineWidth;
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PRUint8 mOutlineStyle; // [reset] See nsStyleConsts.h
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nscolor mOutlineColor; // [reset]
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// XXX remove with deprecated methods
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nscoord mBorderWidths[3];
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};
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struct nsStyleList : public nsStyleStruct {
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nsStyleList(void);
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~nsStyleList(void);
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PRUint8 mListStyleType; // [inherited] See nsStyleConsts.h
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PRUint8 mListStylePosition; // [inherited]
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nsString mListStyleImage; // [inherited] absolute url string
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};
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struct nsStylePosition : public nsStyleStruct {
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nsStylePosition(void);
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~nsStylePosition(void);
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PRUint8 mPosition; // [reset] see nsStyleConsts.h
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nsStyleSides mOffset; // [reset]
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nsStyleCoord mWidth; // [reset] coord, percent, auto, inherit
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nsStyleCoord mMinWidth; // [reset] coord, percent, inherit
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nsStyleCoord mMaxWidth; // [reset] coord, percent, null, inherit
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nsStyleCoord mHeight; // [reset] coord, percent, auto, inherit
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nsStyleCoord mMinHeight; // [reset] coord, percent, inherit
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nsStyleCoord mMaxHeight; // [reset] coord, percent, null, inherit
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PRUint8 mBoxSizing; // [reset] see nsStyleConsts.h
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nsStyleCoord mZIndex; // [reset]
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PRBool IsAbsolutelyPositioned() const {return (NS_STYLE_POSITION_ABSOLUTE == mPosition) ||
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(NS_STYLE_POSITION_FIXED == mPosition);}
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PRBool IsPositioned() const {return IsAbsolutelyPositioned() ||
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(NS_STYLE_POSITION_RELATIVE == mPosition);}
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};
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struct nsStyleText : public nsStyleStruct {
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nsStyleText(void);
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~nsStyleText(void);
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PRUint8 mTextAlign; // [inherited] see nsStyleConsts.h
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PRUint8 mTextDecoration; // [reset] see nsStyleConsts.h
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PRUint8 mTextTransform; // [inherited] see nsStyleConsts.h
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PRUint8 mWhiteSpace; // [inherited] see nsStyleConsts.h
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#ifdef IBMBIDI
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PRUint8 mUnicodeBidi; // [inherited] see nsStyleConsts.h
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#endif // IBMBIDI
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nsStyleCoord mLetterSpacing; // [inherited]
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nsStyleCoord mLineHeight; // [inherited]
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nsStyleCoord mTextIndent; // [inherited]
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nsStyleCoord mWordSpacing; // [inherited]
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nsStyleCoord mVerticalAlign; // [reset] see nsStyleConsts.h for enums
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PRBool WhiteSpaceIsSignificant() const {
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return mWhiteSpace == NS_STYLE_WHITESPACE_PRE;
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}
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};
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struct nsStyleDisplay : public nsStyleStruct {
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nsStyleDisplay(void) {};
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~nsStyleDisplay(void) {};
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PRUint8 mDirection; // [inherited] see nsStyleConsts.h NS_STYLE_DIRECTION_*
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#ifdef IBMBIDI
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PRUint8 mExplicitDirection ; // [reset] see nsStyleConsts.h NS_STYLE_DIRECTION_*
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#endif
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PRUint8 mDisplay; // [reset] see nsStyleConsts.h NS_STYLE_DISPLAY_*
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PRUint8 mFloats; // [reset] see nsStyleConsts.h NS_STYLE_FLOAT_*
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PRUint8 mBreakType; // [reset] see nsStyleConsts.h NS_STYLE_CLEAR_*
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PRPackedBool mBreakBefore; // [reset]
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PRPackedBool mBreakAfter; // [reset]
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PRUint8 mVisible; // [inherited]
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PRUint8 mOverflow; // [reset] see nsStyleConsts.h
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PRUint8 mClipFlags; // [reset] see nsStyleConsts.h
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#if 0
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// XXX This is how it is defined in the CSS2 spec, but the errata
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// changed it to be consistent with the positioning draft and how
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// Nav and IE implement it
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nsMargin mClip; // [reset] offsets from respective edge
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#else
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nsRect mClip; // [reset] offsets from upper-left border edge
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#endif
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nsCOMPtr<nsILanguageAtom> mLanguage; // [inherited]
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PRBool IsBlockLevel() const {return (NS_STYLE_DISPLAY_BLOCK == mDisplay) ||
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(NS_STYLE_DISPLAY_LIST_ITEM == mDisplay) ||
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(NS_STYLE_DISPLAY_TABLE == mDisplay);}
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PRBool IsFloating() const {
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return NS_STYLE_FLOAT_NONE != mFloats;
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}
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PRBool IsVisible() const {
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return (mVisible == NS_STYLE_VISIBILITY_VISIBLE);
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}
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PRBool IsVisibleOrCollapsed() const {
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return ((mVisible == NS_STYLE_VISIBILITY_VISIBLE) ||
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(mVisible == NS_STYLE_VISIBILITY_COLLAPSE));
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}
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};
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struct nsStyleTable: public nsStyleStruct {
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nsStyleTable(void);
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~nsStyleTable(void);
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PRUint8 mLayoutStrategy;// [reset] see nsStyleConsts.h NS_STYLE_TABLE_LAYOUT_*
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PRUint8 mFrame; // [reset] see nsStyleConsts.h NS_STYLE_TABLE_FRAME_*
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PRUint8 mRules; // [reset] see nsStyleConsts.h NS_STYLE_TABLE_RULES_*
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PRUint8 mBorderCollapse;// [inherited]
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nsStyleCoord mBorderSpacingX;// [inherited]
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nsStyleCoord mBorderSpacingY;// [inherited]
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nsStyleCoord mCellPadding; // [reset]
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PRUint8 mCaptionSide; // [inherited]
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PRUint8 mEmptyCells; // [inherited]
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PRInt32 mCols; // [reset] an integer if set, or see nsStyleConsts.h NS_STYLE_TABLE_COLS_*
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PRInt32 mSpan; // [reset] the number of columns spanned by a colgroup or col
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nsStyleCoord mSpanWidth; // [reset] the amount of width this col gets from a spanning cell, if any
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};
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enum nsStyleContentType {
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eStyleContentType_String = 1,
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eStyleContentType_URL = 10,
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eStyleContentType_Attr = 20,
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eStyleContentType_Counter = 30,
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eStyleContentType_Counters = 31,
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eStyleContentType_OpenQuote = 40,
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eStyleContentType_CloseQuote = 41,
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eStyleContentType_NoOpenQuote = 42,
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eStyleContentType_NoCloseQuote = 43
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};
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struct nsStyleContentData {
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nsStyleContentType mType;
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nsString mContent;
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};
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struct nsStyleCounterData {
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nsString mCounter;
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PRInt32 mValue;
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};
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#define DELETE_ARRAY_IF(array) if (array) { delete[] array; array = nsnull; }
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struct nsStyleContent: public nsStyleStruct {
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nsStyleContent(void);
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~nsStyleContent(void);
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PRUint32 ContentCount(void) const { return mContentCount; } // [reset]
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nsresult GetContentAt(PRUint32 aIndex, nsStyleContentType& aType, nsString& aContent) const {
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if (aIndex < mContentCount) {
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aType = mContents[aIndex].mType;
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aContent = mContents[aIndex].mContent;
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return NS_OK;
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}
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return NS_ERROR_ILLEGAL_VALUE;
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}
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nsresult AllocateContents(PRUint32 aCount) {
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if (aCount != mContentCount) {
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DELETE_ARRAY_IF(mContents);
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if (aCount) {
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mContents = new nsStyleContentData[aCount];
|
|
if (! mContents) {
|
|
mContentCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mContentCount = aCount;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetContentAt(PRUint32 aIndex, nsStyleContentType aType, const nsString& aContent) {
|
|
if (aIndex < mContentCount) {
|
|
mContents[aIndex].mType = aType;
|
|
if (aType < eStyleContentType_OpenQuote) {
|
|
mContents[aIndex].mContent = aContent;
|
|
}
|
|
else {
|
|
mContents[aIndex].mContent.Truncate();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
PRUint32 CounterIncrementCount(void) const { return mIncrementCount; } // [reset]
|
|
nsresult GetCounterIncrementAt(PRUint32 aIndex, nsString& aCounter, PRInt32& aIncrement) const {
|
|
if (aIndex < mIncrementCount) {
|
|
aCounter = mIncrements[aIndex].mCounter;
|
|
aIncrement = mIncrements[aIndex].mValue;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
nsresult AllocateCounterIncrements(PRUint32 aCount) {
|
|
if (aCount != mIncrementCount) {
|
|
DELETE_ARRAY_IF(mIncrements);
|
|
if (aCount) {
|
|
mIncrements = new nsStyleCounterData[aCount];
|
|
if (! mIncrements) {
|
|
mIncrementCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mIncrementCount = aCount;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetCounterIncrementAt(PRUint32 aIndex, const nsString& aCounter, PRInt32 aIncrement) {
|
|
if (aIndex < mIncrementCount) {
|
|
mIncrements[aIndex].mCounter = aCounter;
|
|
mIncrements[aIndex].mValue = aIncrement;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
PRUint32 CounterResetCount(void) const { return mResetCount; } // [reset]
|
|
nsresult GetCounterResetAt(PRUint32 aIndex, nsString& aCounter, PRInt32& aValue) const {
|
|
if (aIndex < mResetCount) {
|
|
aCounter = mResets[aIndex].mCounter;
|
|
aValue = mResets[aIndex].mValue;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
nsresult AllocateCounterResets(PRUint32 aCount) {
|
|
if (aCount != mResetCount) {
|
|
DELETE_ARRAY_IF(mResets);
|
|
if (aCount) {
|
|
mResets = new nsStyleCounterData[aCount];
|
|
if (! mResets) {
|
|
mResetCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mResetCount = aCount;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetCounterResetAt(PRUint32 aIndex, const nsString& aCounter, PRInt32 aValue) {
|
|
if (aIndex < mResetCount) {
|
|
mResets[aIndex].mCounter = aCounter;
|
|
mResets[aIndex].mValue = aValue;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
nsStyleCoord mMarkerOffset; // [reset]
|
|
|
|
PRUint32 QuotesCount(void) const { return mQuotesCount; } // [inherited]
|
|
nsresult GetQuotesAt(PRUint32 aIndex, nsString& aOpen, nsString& aClose) const {
|
|
if (aIndex < mQuotesCount) {
|
|
aIndex *= 2;
|
|
aOpen = mQuotes[aIndex];
|
|
aClose = mQuotes[++aIndex];
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
nsresult AllocateQuotes(PRUint32 aCount) {
|
|
if (aCount != mQuotesCount) {
|
|
DELETE_ARRAY_IF(mQuotes);
|
|
if (aCount) {
|
|
mQuotes = new nsString[aCount * 2];
|
|
if (! mQuotes) {
|
|
mQuotesCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mQuotesCount = aCount;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetQuotesAt(PRUint32 aIndex, const nsString& aOpen, const nsString& aClose) {
|
|
if (aIndex < mQuotesCount) {
|
|
aIndex *= 2;
|
|
mQuotes[aIndex] = aOpen;
|
|
mQuotes[++aIndex] = aClose;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
protected:
|
|
PRUint32 mContentCount;
|
|
nsStyleContentData* mContents;
|
|
|
|
PRUint32 mIncrementCount;
|
|
nsStyleCounterData* mIncrements;
|
|
|
|
PRUint32 mResetCount;
|
|
nsStyleCounterData* mResets;
|
|
|
|
PRUint32 mQuotesCount;
|
|
nsString* mQuotes;
|
|
};
|
|
|
|
struct nsStyleUserInterface: public nsStyleStruct {
|
|
nsStyleUserInterface(void);
|
|
~nsStyleUserInterface(void);
|
|
|
|
PRUint8 mUserInput; // [inherited]
|
|
PRUint8 mUserModify; // [inherited] (modify-content)
|
|
PRUint8 mUserSelect; // [reset] (selection-style)
|
|
PRUint8 mUserFocus; // [inherited] (auto-select)
|
|
PRUnichar mKeyEquivalent; // [reset] XXX what type should this be?
|
|
PRUint8 mResizer; // [reset]
|
|
nsString mBehavior; // [reset] absolute url string
|
|
|
|
};
|
|
|
|
struct nsStylePrint: public nsStyleStruct {
|
|
nsStylePrint(void);
|
|
~nsStylePrint(void);
|
|
|
|
PRUint8 mPageBreakBefore; // [reset] see nsStyleConsts.h NS_STYLE_PAGE_BREAK_*
|
|
PRUint8 mPageBreakAfter; // [reset] see nsStyleConsts.h NS_STYLE_PAGE_BREAK_*
|
|
PRUint8 mPageBreakInside; // [reset] see nsStyleConsts.h NS_STYLE_PAGE_BREAK_*
|
|
nsString mPage;
|
|
PRUint32 mWidows; // [reset] = 2, number of isolated lines at the top of a page
|
|
PRUint32 mOrphans; // [reset] = 2, number of isolated lines at the bottom of a page
|
|
PRUint8 mMarks; // [reset] see nsStyleConsts.h NS_STYLE_PAGE_MARKS_*
|
|
nsStyleCoord mSizeWidth; // [reset] length, enum: see nsStyleConsts.h NS_STYLE_PAGE_SIZE_*
|
|
nsStyleCoord mSizeHeight; // [reset] length, enum: see nsStyleConsts.h NS_STYLE_PAGE_SIZE_*
|
|
};
|
|
|
|
#ifdef INCLUDE_XUL
|
|
struct nsStyleXUL : public nsStyleStruct {
|
|
nsStyleXUL();
|
|
~nsStyleXUL();
|
|
|
|
// There will be seven more properties coming,
|
|
// which is why we warrant our own struct.
|
|
// box-align, box-direction, box-flex, box-flex-group, box-pack,
|
|
// stack-stretch, stack-policy
|
|
PRUint8 mBoxOrient; // [reset] see nsStyleConsts.h
|
|
};
|
|
#endif
|
|
|
|
#define BORDER_PRECEDENT_EQUAL 0
|
|
#define BORDER_PRECEDENT_LOWER 1
|
|
#define BORDER_PRECEDENT_HIGHER 2
|
|
|
|
struct nsBorderEdges;
|
|
|
|
/** an encapsulation of border edge info */
|
|
struct nsBorderEdge
|
|
{
|
|
/** the thickness of the edge */
|
|
nscoord mWidth;
|
|
/** the length of the edge */
|
|
nscoord mLength;
|
|
PRUint8 mStyle;
|
|
nscolor mColor;
|
|
/** which side does this edge represent? */
|
|
PRUint8 mSide;
|
|
/** if this edge is an outside edge, the border infor for the adjacent inside object */
|
|
nsBorderEdges * mInsideNeighbor;
|
|
|
|
nsBorderEdge();
|
|
};
|
|
|
|
inline nsBorderEdge::nsBorderEdge()
|
|
{
|
|
mWidth=0;
|
|
mLength=0;
|
|
mStyle=NS_STYLE_BORDER_STYLE_NONE;
|
|
mColor=0;
|
|
mSide=NS_SIDE_LEFT;
|
|
mInsideNeighbor = nsnull;
|
|
};
|
|
|
|
/** an encapsulation of a border defined by its edges
|
|
* owner of this struct is responsible for freeing any data stored in mEdges
|
|
*/
|
|
struct nsBorderEdges
|
|
{
|
|
nsVoidArray mEdges[4];
|
|
nsMargin mMaxBorderWidth;
|
|
PRPackedBool mOutsideEdge;
|
|
|
|
nsBorderEdges();
|
|
};
|
|
|
|
inline nsBorderEdges::nsBorderEdges()
|
|
{
|
|
mMaxBorderWidth.SizeTo(0,0,0,0);
|
|
mOutsideEdge = PR_TRUE;
|
|
};
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
#define NS_ISTYLECONTEXT_IID \
|
|
{ 0x26a4d970, 0xa342, 0x11d1, \
|
|
{0x89, 0x74, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
|
|
|
|
class nsIStyleContext : public nsISupports {
|
|
public:
|
|
static const nsIID& GetIID() { static nsIID iid = NS_ISTYLECONTEXT_IID; return iid; }
|
|
|
|
virtual PRBool Equals(const nsIStyleContext* aOther) const = 0;
|
|
virtual PRUint32 HashValue(void) const = 0;
|
|
|
|
virtual nsIStyleContext* GetParent(void) const = 0;
|
|
virtual nsISupportsArray* GetStyleRules(void) const = 0;
|
|
virtual PRInt32 GetStyleRuleCount(void) const = 0;
|
|
NS_IMETHOD GetPseudoType(nsIAtom*& aPseudoTag) const = 0;
|
|
|
|
NS_IMETHOD FindChildWithRules(const nsIAtom* aPseudoTag,
|
|
nsISupportsArray* aRules,
|
|
nsIStyleContext*& aResult) = 0;
|
|
|
|
// Fill a style struct with data
|
|
NS_IMETHOD GetStyle(nsStyleStructID aSID, nsStyleStruct& aStruct) const = 0;
|
|
|
|
// compute the effective difference between two contexts
|
|
NS_IMETHOD CalcStyleDifference(nsIStyleContext* aOther, PRInt32& aHint, PRBool aStopAtFirst = PR_FALSE) const = 0;
|
|
|
|
// debugging
|
|
virtual void List(FILE* out, PRInt32 aIndent) = 0;
|
|
|
|
virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize) = 0;
|
|
|
|
#ifdef DEBUG
|
|
virtual void DumpRegressionData(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent) = 0;
|
|
#endif
|
|
|
|
#ifdef SHARE_STYLECONTEXTS
|
|
// sets aMatches to PR_TRUE if the style data of aStyleContextToMatch matches the
|
|
// style data of this, PR_FALSE otherwise
|
|
NS_IMETHOD StyleDataMatches(nsIStyleContext* aStyleContextToMatch, PRBool *aMatches) = 0;
|
|
NS_IMETHOD GetStyleContextKey(scKey &aKey) const = 0;
|
|
#endif
|
|
|
|
// -------------------------------------------------------------
|
|
// DEPRECATED METHODS - these are all going away, stop using them
|
|
// get a style data struct by ID, may return null
|
|
// Replace calls to this with calls to GetStyle();
|
|
virtual const nsStyleStruct* GetStyleData(nsStyleStructID aSID) = 0;
|
|
|
|
// get a style data struct by ID, may return null
|
|
virtual nsStyleStruct* GetMutableStyleData(nsStyleStructID aSID) = 0;
|
|
|
|
// call this to prevent context from getting shared
|
|
virtual void ForceUnique(void) = 0;
|
|
|
|
NS_IMETHOD RemapStyle(nsIPresContext* aPresContext, PRBool aRecurse = PR_TRUE) = 0;
|
|
|
|
// call if you change style data after creation
|
|
virtual void RecalcAutomaticData(nsIPresContext* aPresContext) = 0;
|
|
|
|
// utility function: more convenient than 2 calls to GetStyleData to get border and padding
|
|
virtual void CalcBorderPaddingFor(const nsIFrame* aFrame, nsMargin& aBorderPadding) const = 0;
|
|
};
|
|
|
|
|
|
// XXX this is here to support deprecated calc spacing methods only
|
|
inline nscoord CalcSideFor(const nsIFrame* aFrame, const nsStyleCoord& aCoord,
|
|
PRUint8 aSpacing, PRUint8 aSide,
|
|
const nscoord* aEnumTable, PRInt32 aNumEnums)
|
|
{
|
|
nscoord result = 0;
|
|
|
|
switch (aCoord.GetUnit()) {
|
|
case eStyleUnit_Auto:
|
|
// Auto margins are handled by layout
|
|
break;
|
|
|
|
case eStyleUnit_Inherit:
|
|
nsIFrame* parentFrame;
|
|
aFrame->GetParent(&parentFrame); // XXX may not be direct parent...
|
|
if (nsnull != parentFrame) {
|
|
nsIStyleContext* parentContext;
|
|
parentFrame->GetStyleContext(&parentContext);
|
|
if (nsnull != parentContext) {
|
|
nsMargin parentSpacing;
|
|
switch (aSpacing) {
|
|
case NS_SPACING_MARGIN:
|
|
{
|
|
const nsStyleMargin* parentMargin = (const nsStyleMargin*)parentContext->GetStyleData(eStyleStruct_Margin);
|
|
parentMargin->CalcMarginFor(parentFrame, parentSpacing);
|
|
}
|
|
|
|
break;
|
|
case NS_SPACING_PADDING:
|
|
{
|
|
const nsStylePadding* parentPadding = (const nsStylePadding*)parentContext->GetStyleData(eStyleStruct_Padding);
|
|
parentPadding->CalcPaddingFor(parentFrame, parentSpacing);
|
|
}
|
|
|
|
break;
|
|
case NS_SPACING_BORDER:
|
|
{
|
|
const nsStyleBorder* parentBorder = (const nsStyleBorder*)parentContext->GetStyleData(eStyleStruct_Border);
|
|
parentBorder->CalcBorderFor(parentFrame, parentSpacing);
|
|
}
|
|
|
|
break;
|
|
}
|
|
switch (aSide) {
|
|
case NS_SIDE_LEFT: result = parentSpacing.left; break;
|
|
case NS_SIDE_TOP: result = parentSpacing.top; break;
|
|
case NS_SIDE_RIGHT: result = parentSpacing.right; break;
|
|
case NS_SIDE_BOTTOM: result = parentSpacing.bottom; break;
|
|
}
|
|
NS_RELEASE(parentContext);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eStyleUnit_Percent:
|
|
{
|
|
nscoord baseWidth = 0;
|
|
PRBool isBase = PR_FALSE;
|
|
nsIFrame* frame;
|
|
aFrame->GetParent(&frame);
|
|
while (nsnull != frame) {
|
|
frame->IsPercentageBase(isBase);
|
|
if (isBase) {
|
|
nsSize size;
|
|
frame->GetSize(size);
|
|
baseWidth = size.width; // not really width, need to subtract out padding...
|
|
break;
|
|
}
|
|
frame->GetParent(&frame);
|
|
}
|
|
result = (nscoord)((float)baseWidth * aCoord.GetPercentValue());
|
|
}
|
|
break;
|
|
|
|
case eStyleUnit_Coord:
|
|
result = aCoord.GetCoordValue();
|
|
break;
|
|
|
|
case eStyleUnit_Enumerated:
|
|
if (nsnull != aEnumTable) {
|
|
PRInt32 value = aCoord.GetIntValue();
|
|
if ((0 <= value) && (value < aNumEnums)) {
|
|
return aEnumTable[aCoord.GetIntValue()];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eStyleUnit_Null:
|
|
case eStyleUnit_Normal:
|
|
case eStyleUnit_Integer:
|
|
case eStyleUnit_Proportional:
|
|
default:
|
|
result = 0;
|
|
break;
|
|
}
|
|
if ((NS_SPACING_PADDING == aSpacing) || (NS_SPACING_BORDER == aSpacing)) {
|
|
if (result < 0) {
|
|
result = 0;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
inline void CalcSidesFor(const nsIFrame* aFrame, const nsStyleSides& aSides,
|
|
PRUint8 aSpacing,
|
|
const nscoord* aEnumTable, PRInt32 aNumEnums,
|
|
nsMargin& aResult)
|
|
{
|
|
nsStyleCoord coord;
|
|
|
|
aResult.left = CalcSideFor(aFrame, aSides.GetLeft(coord), aSpacing, NS_SIDE_LEFT,
|
|
aEnumTable, aNumEnums);
|
|
aResult.top = CalcSideFor(aFrame, aSides.GetTop(coord), aSpacing, NS_SIDE_TOP,
|
|
aEnumTable, aNumEnums);
|
|
aResult.right = CalcSideFor(aFrame, aSides.GetRight(coord), aSpacing, NS_SIDE_RIGHT,
|
|
aEnumTable, aNumEnums);
|
|
aResult.bottom = CalcSideFor(aFrame, aSides.GetBottom(coord), aSpacing, NS_SIDE_BOTTOM,
|
|
aEnumTable, aNumEnums);
|
|
}
|
|
|
|
|
|
// this is private to nsStyleSet, don't call it
|
|
extern NS_LAYOUT nsresult
|
|
NS_NewStyleContext(nsIStyleContext** aInstancePtrResult,
|
|
nsIStyleContext* aParentContext,
|
|
nsIAtom* aPseudoType,
|
|
nsISupportsArray* aRules,
|
|
nsIPresContext* aPresContext);
|
|
|
|
|
|
#endif /* nsIStyleContext_h___ */
|