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gecko-dev/layout/style/nsComputedDOMStyle.h
bzbarsky%mit.edu ccf9ef3a04 Fix crashes when computed style is used on a dead presentation. Bug 291183, 
r+sr=dbaron, a=chofmann
2005-06-03 01:51:15 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Christopher A. Aillon <christopher@aillon.com>
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Christopher A. Aillon <christopher@aillon.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsComputedDOMStyle_h__
#define nsComputedDOMStyle_h__
#include "nsIComputedDOMStyle.h"
#include "nsROCSSPrimitiveValue.h"
#include "nsDOMCSSDeclaration.h"
#include "nsDOMCSSRGBColor.h"
#include "nsDOMCSSValueList.h"
#include "nsCSSProps.h"
#include "nsIPresShell.h"
#include "nsIContent.h"
#include "nsIFrame.h"
#include "nsCOMPtr.h"
#include "nsWeakReference.h"
#include "nsAutoPtr.h"
class nsComputedDOMStyle : public nsIComputedDOMStyle
{
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Init(nsIDOMElement *aElement,
const nsAString& aPseudoElt,
nsIPresShell *aPresShell);
NS_DECL_NSICSSDECLARATION
NS_DECL_NSIDOMCSSSTYLEDECLARATION
nsComputedDOMStyle();
virtual ~nsComputedDOMStyle();
static void Shutdown();
private:
void FlushPendingReflows();
nsresult GetStyleData(nsStyleStructID aID,
const nsStyleStruct*& aStyleStruct,
nsIFrame* aFrame=0);
nsresult GetOffsetWidthFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetAbsoluteOffset(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetRelativeOffset(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetStaticOffset(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetPaddingWidthFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nscoord GetPaddingWidthCoordFor(PRUint8 aSide,
nsIFrame *aFrame);
nsresult GetBorderColorsFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetBorderStyleFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetBorderRadiusFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetBorderWidthFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nscoord GetBorderWidthCoordFor(PRUint8 aSide,
nsIFrame *aFrame);
nsresult GetBorderColorFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetOutlineRadiusFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nsresult GetMarginWidthFor(PRUint8 aSide,
nsIFrame *aFrame,
nsIDOMCSSValue** aValue);
nscoord GetMarginWidthCoordFor(PRUint8 aSide,
nsIFrame *aFrame);
nsresult GetLineHeightCoord(nsIFrame *aFrame,
const nsStyleText *aText,
nscoord& aCoord);
/* Properties Queryable as CSSValues */
nsresult GetAppearance(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Box properties */
nsresult GetBoxAlign(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBoxDirection(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBoxFlex(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBoxOrdinalGroup(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBoxOrient(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBoxPack(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBoxSizing(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetHeight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMaxHeight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMaxWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMinHeight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMinWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetLeft(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetTop(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetRight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBottom(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Font properties */
nsresult GetColor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetFontFamily(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetFontStyle(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetFontSize(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetFontSizeAdjust(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetFontWeight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetFontVariant(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Background properties */
nsresult GetBackgroundAttachment(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBackgroundColor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBackgroundImage(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBackgroundRepeat(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBackgroundClip(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBackgroundInlinePolicy(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBackgroundOrigin(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Padding properties */
nsresult GetPadding(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetPaddingTop(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetPaddingBottom(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetPaddingLeft(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetPaddingRight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Table Properties */
nsresult GetBorderCollapse(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderSpacing(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetCaptionSide(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetEmptyCells(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetTableLayout(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetVerticalAlign(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Border Properties */
nsresult GetBorderStyle(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderTopStyle(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderBottomStyle(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderLeftStyle(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRightStyle(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderTopWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderBottomWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderLeftWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRightWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderTopColor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderBottomColor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderLeftColor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRightColor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderBottomColors(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderLeftColors(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRightColors(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderTopColors(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRadiusBottomLeft(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRadiusBottomRight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRadiusTopLeft(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetBorderRadiusTopRight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetFloatEdge(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Margin Properties */
nsresult GetMarginWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMarginTopWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMarginBottomWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMarginLeftWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMarginRightWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Outline Properties */
nsresult GetOutline(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineStyle(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineColor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineOffset(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineRadiusBottomLeft(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineRadiusBottomRight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineRadiusTopLeft(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOutlineRadiusTopRight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Content Properties */
nsresult GetCounterIncrement(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetCounterReset(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetMarkerOffset(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* z-index */
nsresult GetZIndex(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* List properties */
nsresult GetListStyleImage(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetListStylePosition(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetListStyleType(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetImageRegion(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Text Properties */
nsresult GetLineHeight(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetTextAlign(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetTextDecoration(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetTextIndent(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetTextTransform(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetLetterSpacing(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetWordSpacing(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetWhiteSpace(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Visibility properties */
nsresult GetOpacity(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetVisibility(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Direction properties */
nsresult GetDirection(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetUnicodeBidi(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Display properties */
nsresult GetBinding(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetClear(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetCssFloat(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetDisplay(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetPosition(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetClip(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOverflow(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOverflowX(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetOverflowY(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* User interface properties */
nsresult GetCursor(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetUserFocus(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetUserInput(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetUserModify(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetUserSelect(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
/* Column properties */
nsresult GetColumnCount(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetColumnWidth(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsresult GetColumnGap(nsIFrame *aFrame, nsIDOMCSSValue** aValue);
nsROCSSPrimitiveValue* GetROCSSPrimitiveValue();
nsDOMCSSValueList* GetROCSSValueList(PRBool aCommaDelimited);
nsDOMCSSRGBColor* GetDOMCSSRGBColor(nscolor aColor);
struct ComputedStyleMapEntry
{
// Create a pointer-to-member-function type.
typedef nsresult (nsComputedDOMStyle::*ComputeMethod)(nsIFrame*, nsIDOMCSSValue**);
nsCSSProperty mProperty;
ComputeMethod mGetter;
};
static const ComputedStyleMapEntry* GetQueryablePropertyMap(PRUint32* aLength);
CSS2PropertiesTearoff mInner;
// We don't really have a good immutable representation of "presentation".
// Given the way GetComputedStyle is currently used, we should just grab the
// 0th presshell, if any, from the document.
nsWeakPtr mDocumentWeak;
nsCOMPtr<nsIContent> mContent;
/*
* When a frame is unavailable, strong reference to the
* style context while we're accessing the data from in.
*/
nsRefPtr<nsStyleContext> mStyleContextHolder;
nsCOMPtr<nsIAtom> mPseudo;
float mT2P; /* For unit conversions */
};
#endif /* nsComputedDOMStyle_h__ */
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