зеркало из https://github.com/mozilla/gecko-dev.git
465 строки
18 KiB
C++
465 строки
18 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: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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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* Christopher A. Aillon <christopher@aillon.com>
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Christopher A. Aillon <christopher@aillon.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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* DOM object returned from element.getComputedStyle() */
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#ifndef nsComputedDOMStyle_h__
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#define nsComputedDOMStyle_h__
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#include "nsICSSDeclaration.h"
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#include "nsROCSSPrimitiveValue.h"
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#include "nsDOMCSSDeclaration.h"
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#include "nsDOMCSSRGBColor.h"
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#include "nsDOMCSSValueList.h"
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#include "nsCSSProps.h"
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#include "nsIPresShell.h"
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#include "nsIContent.h"
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#include "nsIFrame.h"
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#include "nsCOMPtr.h"
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#include "nsWeakReference.h"
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#include "nsAutoPtr.h"
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#include "nsStyleStruct.h"
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class nsComputedDOMStyle : public nsICSSDeclaration,
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public nsWrapperCache
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{
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsComputedDOMStyle)
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NS_IMETHOD Init(nsIDOMElement *aElement,
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const nsAString& aPseudoElt,
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nsIPresShell *aPresShell);
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NS_DECL_NSICSSDECLARATION
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NS_DECL_NSIDOMCSSSTYLEDECLARATION
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nsComputedDOMStyle();
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virtual ~nsComputedDOMStyle();
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static void Shutdown();
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virtual nsISupports *GetParentObject()
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{
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return mContent;
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}
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private:
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void AssertFlushedPendingReflows() {
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NS_ASSERTION(mFlushedPendingReflows,
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"property getter should have been marked layout-dependent");
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}
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#define STYLE_STRUCT(name_, checkdata_cb_, ctor_args_) \
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const nsStyle##name_ * GetStyle##name_() { \
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return mStyleContextHolder->GetStyle##name_(); \
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}
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#include "nsStyleStructList.h"
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#undef STYLE_STRUCT
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nsresult GetEllipseRadii(const nsStyleCorners& aRadius,
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PRUint8 aFullCorner,
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nsIDOMCSSValue** aValue);
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nsresult GetOffsetWidthFor(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetAbsoluteOffset(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetRelativeOffset(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetStaticOffset(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetPaddingWidthFor(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetBorderColorsFor(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetBorderStyleFor(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetBorderWidthFor(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetBorderColorFor(PRUint8 aSide, nsIDOMCSSValue** aValue);
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nsresult GetMarginWidthFor(PRUint8 aSide, nsIDOMCSSValue** aValue);
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PRBool GetLineHeightCoord(nscoord& aCoord);
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nsresult GetCSSShadowArray(nsCSSShadowArray* aArray,
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const nscolor& aDefaultColor,
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PRBool aIsBoxShadow,
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nsIDOMCSSValue** aValue);
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nsresult GetBackgroundList(PRUint8 nsStyleBackground::Layer::* aMember,
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PRUint32 nsStyleBackground::* aCount,
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const PRInt32 aTable[],
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nsIDOMCSSValue** aResult);
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/* Properties Queryable as CSSValues */
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nsresult GetAppearance(nsIDOMCSSValue** aValue);
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/* Box properties */
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nsresult GetBoxAlign(nsIDOMCSSValue** aValue);
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nsresult GetBoxDirection(nsIDOMCSSValue** aValue);
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nsresult GetBoxFlex(nsIDOMCSSValue** aValue);
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nsresult GetBoxOrdinalGroup(nsIDOMCSSValue** aValue);
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nsresult GetBoxOrient(nsIDOMCSSValue** aValue);
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nsresult GetBoxPack(nsIDOMCSSValue** aValue);
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nsresult GetBoxSizing(nsIDOMCSSValue** aValue);
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nsresult GetWidth(nsIDOMCSSValue** aValue);
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nsresult GetHeight(nsIDOMCSSValue** aValue);
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nsresult GetMaxHeight(nsIDOMCSSValue** aValue);
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nsresult GetMaxWidth(nsIDOMCSSValue** aValue);
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nsresult GetMinHeight(nsIDOMCSSValue** aValue);
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nsresult GetMinWidth(nsIDOMCSSValue** aValue);
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nsresult GetLeft(nsIDOMCSSValue** aValue);
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nsresult GetTop(nsIDOMCSSValue** aValue);
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nsresult GetRight(nsIDOMCSSValue** aValue);
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nsresult GetBottom(nsIDOMCSSValue** aValue);
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nsresult GetStackSizing(nsIDOMCSSValue** aValue);
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/* Font properties */
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nsresult GetColor(nsIDOMCSSValue** aValue);
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nsresult GetFontFamily(nsIDOMCSSValue** aValue);
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nsresult GetFontSize(nsIDOMCSSValue** aValue);
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nsresult GetFontSizeAdjust(nsIDOMCSSValue** aValue);
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nsresult GetFontStretch(nsIDOMCSSValue** aValue);
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nsresult GetFontStyle(nsIDOMCSSValue** aValue);
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nsresult GetFontWeight(nsIDOMCSSValue** aValue);
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nsresult GetFontVariant(nsIDOMCSSValue** aValue);
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/* Background properties */
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nsresult GetBackgroundAttachment(nsIDOMCSSValue** aValue);
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nsresult GetBackgroundColor(nsIDOMCSSValue** aValue);
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nsresult GetBackgroundImage(nsIDOMCSSValue** aValue);
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nsresult GetBackgroundPosition(nsIDOMCSSValue** aValue);
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nsresult GetBackgroundRepeat(nsIDOMCSSValue** aValue);
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nsresult GetBackgroundClip(nsIDOMCSSValue** aValue);
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nsresult GetBackgroundInlinePolicy(nsIDOMCSSValue** aValue);
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nsresult GetBackgroundOrigin(nsIDOMCSSValue** aValue);
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nsresult GetMozBackgroundSize(nsIDOMCSSValue** aValue);
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/* Padding properties */
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nsresult GetPadding(nsIDOMCSSValue** aValue);
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nsresult GetPaddingTop(nsIDOMCSSValue** aValue);
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nsresult GetPaddingBottom(nsIDOMCSSValue** aValue);
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nsresult GetPaddingLeft(nsIDOMCSSValue** aValue);
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nsresult GetPaddingRight(nsIDOMCSSValue** aValue);
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/* Table Properties */
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nsresult GetBorderCollapse(nsIDOMCSSValue** aValue);
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nsresult GetBorderSpacing(nsIDOMCSSValue** aValue);
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nsresult GetCaptionSide(nsIDOMCSSValue** aValue);
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nsresult GetEmptyCells(nsIDOMCSSValue** aValue);
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nsresult GetTableLayout(nsIDOMCSSValue** aValue);
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nsresult GetVerticalAlign(nsIDOMCSSValue** aValue);
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/* Border Properties */
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nsresult GetBorderStyle(nsIDOMCSSValue** aValue);
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nsresult GetBorderWidth(nsIDOMCSSValue** aValue);
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nsresult GetBorderTopStyle(nsIDOMCSSValue** aValue);
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nsresult GetBorderBottomStyle(nsIDOMCSSValue** aValue);
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nsresult GetBorderLeftStyle(nsIDOMCSSValue** aValue);
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nsresult GetBorderRightStyle(nsIDOMCSSValue** aValue);
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nsresult GetBorderTopWidth(nsIDOMCSSValue** aValue);
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nsresult GetBorderBottomWidth(nsIDOMCSSValue** aValue);
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nsresult GetBorderLeftWidth(nsIDOMCSSValue** aValue);
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nsresult GetBorderRightWidth(nsIDOMCSSValue** aValue);
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nsresult GetBorderTopColor(nsIDOMCSSValue** aValue);
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nsresult GetBorderBottomColor(nsIDOMCSSValue** aValue);
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nsresult GetBorderLeftColor(nsIDOMCSSValue** aValue);
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nsresult GetBorderRightColor(nsIDOMCSSValue** aValue);
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nsresult GetBorderBottomColors(nsIDOMCSSValue** aValue);
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nsresult GetBorderLeftColors(nsIDOMCSSValue** aValue);
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nsresult GetBorderRightColors(nsIDOMCSSValue** aValue);
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nsresult GetBorderTopColors(nsIDOMCSSValue** aValue);
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nsresult GetBorderRadiusBottomLeft(nsIDOMCSSValue** aValue);
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nsresult GetBorderRadiusBottomRight(nsIDOMCSSValue** aValue);
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nsresult GetBorderRadiusTopLeft(nsIDOMCSSValue** aValue);
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nsresult GetBorderRadiusTopRight(nsIDOMCSSValue** aValue);
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nsresult GetFloatEdge(nsIDOMCSSValue** aValue);
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nsresult GetBorderImage(nsIDOMCSSValue** aValue);
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/* Box Shadow */
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nsresult GetBoxShadow(nsIDOMCSSValue** aValue);
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/* Window Shadow */
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nsresult GetWindowShadow(nsIDOMCSSValue** aValue);
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/* Margin Properties */
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nsresult GetMarginWidth(nsIDOMCSSValue** aValue);
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nsresult GetMarginTopWidth(nsIDOMCSSValue** aValue);
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nsresult GetMarginBottomWidth(nsIDOMCSSValue** aValue);
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nsresult GetMarginLeftWidth(nsIDOMCSSValue** aValue);
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nsresult GetMarginRightWidth(nsIDOMCSSValue** aValue);
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/* Outline Properties */
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nsresult GetOutline(nsIDOMCSSValue** aValue);
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nsresult GetOutlineWidth(nsIDOMCSSValue** aValue);
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nsresult GetOutlineStyle(nsIDOMCSSValue** aValue);
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nsresult GetOutlineColor(nsIDOMCSSValue** aValue);
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nsresult GetOutlineOffset(nsIDOMCSSValue** aValue);
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nsresult GetOutlineRadiusBottomLeft(nsIDOMCSSValue** aValue);
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nsresult GetOutlineRadiusBottomRight(nsIDOMCSSValue** aValue);
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nsresult GetOutlineRadiusTopLeft(nsIDOMCSSValue** aValue);
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nsresult GetOutlineRadiusTopRight(nsIDOMCSSValue** aValue);
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/* Content Properties */
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nsresult GetContent(nsIDOMCSSValue** aValue);
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nsresult GetCounterIncrement(nsIDOMCSSValue** aValue);
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nsresult GetCounterReset(nsIDOMCSSValue** aValue);
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nsresult GetMarkerOffset(nsIDOMCSSValue** aValue);
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/* Quotes Properties */
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nsresult GetQuotes(nsIDOMCSSValue** aValue);
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/* z-index */
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nsresult GetZIndex(nsIDOMCSSValue** aValue);
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/* List properties */
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nsresult GetListStyleImage(nsIDOMCSSValue** aValue);
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nsresult GetListStylePosition(nsIDOMCSSValue** aValue);
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nsresult GetListStyleType(nsIDOMCSSValue** aValue);
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nsresult GetImageRegion(nsIDOMCSSValue** aValue);
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/* Text Properties */
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nsresult GetLineHeight(nsIDOMCSSValue** aValue);
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nsresult GetTextAlign(nsIDOMCSSValue** aValue);
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nsresult GetTextDecoration(nsIDOMCSSValue** aValue);
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nsresult GetTextIndent(nsIDOMCSSValue** aValue);
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nsresult GetTextTransform(nsIDOMCSSValue** aValue);
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nsresult GetTextShadow(nsIDOMCSSValue** aValue);
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nsresult GetLetterSpacing(nsIDOMCSSValue** aValue);
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nsresult GetWordSpacing(nsIDOMCSSValue** aValue);
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nsresult GetWhiteSpace(nsIDOMCSSValue** aValue);
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nsresult GetWordWrap(nsIDOMCSSValue** aValue);
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/* Visibility properties */
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nsresult GetOpacity(nsIDOMCSSValue** aValue);
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nsresult GetVisibility(nsIDOMCSSValue** aValue);
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/* Direction properties */
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nsresult GetDirection(nsIDOMCSSValue** aValue);
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nsresult GetUnicodeBidi(nsIDOMCSSValue** aValue);
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/* Display properties */
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nsresult GetBinding(nsIDOMCSSValue** aValue);
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nsresult GetClear(nsIDOMCSSValue** aValue);
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nsresult GetCssFloat(nsIDOMCSSValue** aValue);
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nsresult GetDisplay(nsIDOMCSSValue** aValue);
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nsresult GetPosition(nsIDOMCSSValue** aValue);
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nsresult GetClip(nsIDOMCSSValue** aValue);
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nsresult GetOverflow(nsIDOMCSSValue** aValue);
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nsresult GetOverflowX(nsIDOMCSSValue** aValue);
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nsresult GetOverflowY(nsIDOMCSSValue** aValue);
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nsresult GetPageBreakAfter(nsIDOMCSSValue** aValue);
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nsresult GetPageBreakBefore(nsIDOMCSSValue** aValue);
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nsresult GetMozTransform(nsIDOMCSSValue** aValue);
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nsresult GetMozTransformOrigin(nsIDOMCSSValue **aValue);
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/* User interface properties */
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nsresult GetCursor(nsIDOMCSSValue** aValue);
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nsresult GetForceBrokenImageIcon(nsIDOMCSSValue** aValue);
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nsresult GetIMEMode(nsIDOMCSSValue** aValue);
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nsresult GetUserFocus(nsIDOMCSSValue** aValue);
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nsresult GetUserInput(nsIDOMCSSValue** aValue);
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nsresult GetUserModify(nsIDOMCSSValue** aValue);
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nsresult GetUserSelect(nsIDOMCSSValue** aValue);
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/* Column properties */
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nsresult GetColumnCount(nsIDOMCSSValue** aValue);
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nsresult GetColumnWidth(nsIDOMCSSValue** aValue);
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nsresult GetColumnGap(nsIDOMCSSValue** aValue);
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nsresult GetColumnRuleWidth(nsIDOMCSSValue** aValue);
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nsresult GetColumnRuleStyle(nsIDOMCSSValue** aValue);
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nsresult GetColumnRuleColor(nsIDOMCSSValue** aValue);
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#ifdef MOZ_SVG
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/* SVG properties */
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nsresult GetSVGPaintFor(PRBool aFill, nsIDOMCSSValue** aValue);
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nsresult GetFill(nsIDOMCSSValue** aValue);
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nsresult GetStroke(nsIDOMCSSValue** aValue);
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nsresult GetMarkerEnd(nsIDOMCSSValue** aValue);
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nsresult GetMarkerMid(nsIDOMCSSValue** aValue);
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nsresult GetMarkerStart(nsIDOMCSSValue** aValue);
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nsresult GetStrokeDasharray(nsIDOMCSSValue** aValue);
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nsresult GetStrokeDashoffset(nsIDOMCSSValue** aValue);
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nsresult GetStrokeWidth(nsIDOMCSSValue** aValue);
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nsresult GetFillOpacity(nsIDOMCSSValue** aValue);
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nsresult GetFloodOpacity(nsIDOMCSSValue** aValue);
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nsresult GetStopOpacity(nsIDOMCSSValue** aValue);
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nsresult GetStrokeMiterlimit(nsIDOMCSSValue** aValue);
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nsresult GetStrokeOpacity(nsIDOMCSSValue** aValue);
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nsresult GetClipRule(nsIDOMCSSValue** aValue);
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nsresult GetFillRule(nsIDOMCSSValue** aValue);
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nsresult GetStrokeLinecap(nsIDOMCSSValue** aValue);
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nsresult GetStrokeLinejoin(nsIDOMCSSValue** aValue);
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nsresult GetTextAnchor(nsIDOMCSSValue** aValue);
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nsresult GetColorInterpolation(nsIDOMCSSValue** aValue);
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nsresult GetColorInterpolationFilters(nsIDOMCSSValue** aValue);
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nsresult GetDominantBaseline(nsIDOMCSSValue** aValue);
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nsresult GetImageRendering(nsIDOMCSSValue** aValue);
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nsresult GetPointerEvents(nsIDOMCSSValue** aValue);
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nsresult GetShapeRendering(nsIDOMCSSValue** aValue);
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nsresult GetTextRendering(nsIDOMCSSValue** aValue);
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nsresult GetFloodColor(nsIDOMCSSValue** aValue);
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nsresult GetLightingColor(nsIDOMCSSValue** aValue);
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nsresult GetStopColor(nsIDOMCSSValue** aValue);
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nsresult GetClipPath(nsIDOMCSSValue** aValue);
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nsresult GetFilter(nsIDOMCSSValue** aValue);
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nsresult GetMask(nsIDOMCSSValue** aValue);
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#endif // MOZ_SVG
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nsROCSSPrimitiveValue* GetROCSSPrimitiveValue();
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nsDOMCSSValueList* GetROCSSValueList(PRBool aCommaDelimited);
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nsresult SetToRGBAColor(nsROCSSPrimitiveValue* aValue, nscolor aColor);
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/**
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* A method to get a percentage base for a percentage value. Returns PR_TRUE
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* if a percentage base value was determined, PR_FALSE otherwise.
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*/
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typedef PRBool (nsComputedDOMStyle::*PercentageBaseGetter)(nscoord&);
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/**
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* Method to set aValue to aCoord. If aCoord is a percentage value and
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* aPercentageBaseGetter is not null, aPercentageBaseGetter is called. If it
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* returns PR_TRUE, the percentage base it outputs in its out param is used
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* to compute an nscoord value. If the getter is null or returns PR_FALSE,
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* the percent value of aCoord is set as a percent value on aValue. aTable,
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* if not null, is the keyword table to handle eStyleUnit_Enumerated. When
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* calling SetAppUnits on aValue (for coord or percent values), the value
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* passed in will be PR_MAX of the value in aMinAppUnits and the PR_MIN of
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* the actual value in aCoord and the value in aMaxAppUnits.
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*
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* XXXbz should caller pass in some sort of bitfield indicating which units
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* can be expected or something?
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*/
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void SetValueToCoord(nsROCSSPrimitiveValue* aValue,
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const nsStyleCoord& aCoord,
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PercentageBaseGetter aPercentageBaseGetter = nsnull,
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const PRInt32 aTable[] = nsnull,
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nscoord aMinAppUnits = nscoord_MIN,
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nscoord aMaxAppUnits = nscoord_MAX);
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/**
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* If aCoord is a eStyleUnit_Coord returns the nscoord. If it's
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* eStyleUnit_Percent, attempts to resolve the percentage base and returns
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* the resulting nscoord. If it's some other unit or a percentge base can't
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* be determined, returns aDefaultValue.
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*/
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nscoord StyleCoordToNSCoord(const nsStyleCoord& aCoord,
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PercentageBaseGetter aPercentageBaseGetter,
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nscoord aDefaultValue);
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PRBool GetCBContentWidth(nscoord& aWidth);
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PRBool GetCBContentHeight(nscoord& aWidth);
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PRBool GetFrameBoundsWidthForTransform(nscoord &aWidth);
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PRBool GetFrameBoundsHeightForTransform(nscoord &aHeight);
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PRBool GetFrameBorderRectWidth(nscoord& aWidth);
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struct ComputedStyleMapEntry
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{
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// Create a pointer-to-member-function type.
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typedef nsresult (nsComputedDOMStyle::*ComputeMethod)(nsIDOMCSSValue**);
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nsCSSProperty mProperty;
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ComputeMethod mGetter;
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PRBool mNeedsLayoutFlush;
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};
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static const ComputedStyleMapEntry* GetQueryablePropertyMap(PRUint32* aLength);
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CSS2PropertiesTearoff mInner;
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// We don't really have a good immutable representation of "presentation".
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// Given the way GetComputedStyle is currently used, we should just grab the
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// 0th presshell, if any, from the document.
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nsWeakPtr mDocumentWeak;
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nsCOMPtr<nsIContent> mContent;
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/*
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* Strong reference to the style context while we're accessing the data from
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* it. This can be either a style context we resolved ourselves or a style
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* context we got from our frame.
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*/
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nsRefPtr<nsStyleContext> mStyleContextHolder;
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nsCOMPtr<nsIAtom> mPseudo;
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/*
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* While computing style data, the primary frame for mContent --- named "outer"
|
|
* because we should use it to compute positioning data. Null
|
|
* otherwise.
|
|
*/
|
|
nsIFrame* mOuterFrame;
|
|
/*
|
|
* While computing style data, the "inner frame" for mContent --- the frame
|
|
* which we should use to compute margin, border, padding and content data. Null
|
|
* otherwise.
|
|
*/
|
|
nsIFrame* mInnerFrame;
|
|
/*
|
|
* While computing style data, the presshell we're working with. Null
|
|
* otherwise.
|
|
*/
|
|
nsIPresShell* mPresShell;
|
|
|
|
PRInt32 mAppUnitsPerInch; /* For unit conversions */
|
|
|
|
#ifdef DEBUG
|
|
PRBool mFlushedPendingReflows;
|
|
#endif
|
|
};
|
|
|
|
nsresult
|
|
NS_NewComputedDOMStyle(nsIDOMElement *aElement, const nsAString &aPseudoElt,
|
|
nsIPresShell *aPresShell,
|
|
nsComputedDOMStyle **aComputedStyle);
|
|
|
|
#endif /* nsComputedDOMStyle_h__ */
|
|
|