mirror of
https://github.com/mozilla/gecko-dev.git
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531 lines
18 KiB
C++
531 lines
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 "nsDOMCSSDeclaration.h"
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#include "nsROCSSPrimitiveValue.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 "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 nsIPresShell;
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class nsComputedDOMStyle : public nsDOMCSSDeclaration,
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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_CLASS_AMBIGUOUS(nsComputedDOMStyle,
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nsICSSDeclaration)
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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 nsINode *GetParentObject()
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{
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return mContent;
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}
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static already_AddRefed<nsStyleContext>
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GetStyleContextForElement(mozilla::dom::Element* aElement, nsIAtom* aPseudo,
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nsIPresShell* aPresShell);
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static already_AddRefed<nsStyleContext>
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GetStyleContextForElementNoFlush(mozilla::dom::Element* aElement,
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nsIAtom* aPseudo,
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nsIPresShell* aPresShell);
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static nsIPresShell*
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GetPresShellForContent(nsIContent* aContent);
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// Helper for nsDOMWindowUtils::GetVisitedDependentComputedStyle
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void SetExposeVisitedStyle(PRBool aExpose) {
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NS_ASSERTION(aExpose != mExposeVisitedStyle, "should always be changing");
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mExposeVisitedStyle = aExpose;
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}
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// nsDOMCSSDeclaration abstract methods which should never be called
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// on a nsComputedDOMStyle object, but must be defined to avoid
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// compile errors.
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virtual mozilla::css::Declaration* GetCSSDeclaration(PRBool);
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virtual nsresult SetCSSDeclaration(mozilla::css::Declaration*);
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virtual nsIDocument* DocToUpdate();
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virtual nsresult GetCSSParsingEnvironment(nsIURI**, nsIURI**, nsIPrincipal**,
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mozilla::css::Loader**);
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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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// All of the property getters below return a pointer to a refcounted object
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// that has just been created, but the refcount is still 0. Caller must take
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// ownership.
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nsIDOMCSSValue* GetEllipseRadii(const nsStyleCorners& aRadius,
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PRUint8 aFullCorner,
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PRBool aIsBorder); // else outline
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nsIDOMCSSValue* GetOffsetWidthFor(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetAbsoluteOffset(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetRelativeOffset(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetStaticOffset(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetPaddingWidthFor(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetBorderColorsFor(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetBorderStyleFor(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetBorderWidthFor(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetBorderColorFor(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetMarginWidthFor(mozilla::css::Side aSide);
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nsIDOMCSSValue* GetSVGPaintFor(PRBool aFill);
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PRBool GetLineHeightCoord(nscoord& aCoord);
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nsIDOMCSSValue* GetCSSShadowArray(nsCSSShadowArray* aArray,
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const nscolor& aDefaultColor,
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PRBool aIsBoxShadow);
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nsIDOMCSSValue* GetBackgroundList(PRUint8 nsStyleBackground::Layer::* aMember,
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PRUint32 nsStyleBackground::* aCount,
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const PRInt32 aTable[]);
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void GetCSSGradientString(const nsStyleGradient* aGradient,
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nsAString& aString);
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void GetImageRectString(nsIURI* aURI,
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const nsStyleSides& aCropRect,
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nsString& aString);
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void AppendTimingFunction(nsDOMCSSValueList *aValueList,
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const nsTimingFunction& aTimingFunction);
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/* Properties queryable as CSSValues.
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* To avoid a name conflict with nsIDOM*CSS2Properties, these are all
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* DoGetXXX instead of GetXXX.
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*/
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nsIDOMCSSValue* DoGetAppearance();
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/* Box properties */
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nsIDOMCSSValue* DoGetBoxAlign();
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nsIDOMCSSValue* DoGetBoxDirection();
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nsIDOMCSSValue* DoGetBoxFlex();
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nsIDOMCSSValue* DoGetBoxOrdinalGroup();
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nsIDOMCSSValue* DoGetBoxOrient();
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nsIDOMCSSValue* DoGetBoxPack();
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nsIDOMCSSValue* DoGetBoxSizing();
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nsIDOMCSSValue* DoGetWidth();
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nsIDOMCSSValue* DoGetHeight();
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nsIDOMCSSValue* DoGetMaxHeight();
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nsIDOMCSSValue* DoGetMaxWidth();
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nsIDOMCSSValue* DoGetMinHeight();
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nsIDOMCSSValue* DoGetMinWidth();
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nsIDOMCSSValue* DoGetLeft();
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nsIDOMCSSValue* DoGetTop();
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nsIDOMCSSValue* DoGetRight();
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nsIDOMCSSValue* DoGetBottom();
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nsIDOMCSSValue* DoGetStackSizing();
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/* Font properties */
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nsIDOMCSSValue* DoGetColor();
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nsIDOMCSSValue* DoGetFontFamily();
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nsIDOMCSSValue* DoGetMozFontFeatureSettings();
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nsIDOMCSSValue* DoGetMozFontLanguageOverride();
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nsIDOMCSSValue* DoGetFontSize();
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nsIDOMCSSValue* DoGetFontSizeAdjust();
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nsIDOMCSSValue* DoGetFontStretch();
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nsIDOMCSSValue* DoGetFontStyle();
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nsIDOMCSSValue* DoGetFontWeight();
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nsIDOMCSSValue* DoGetFontVariant();
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/* Background properties */
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nsIDOMCSSValue* DoGetBackgroundAttachment();
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nsIDOMCSSValue* DoGetBackgroundColor();
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nsIDOMCSSValue* DoGetBackgroundImage();
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nsIDOMCSSValue* DoGetBackgroundPosition();
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nsIDOMCSSValue* DoGetBackgroundRepeat();
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nsIDOMCSSValue* DoGetBackgroundClip();
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nsIDOMCSSValue* DoGetBackgroundInlinePolicy();
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nsIDOMCSSValue* DoGetBackgroundOrigin();
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nsIDOMCSSValue* DoGetMozBackgroundSize();
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/* Padding properties */
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nsIDOMCSSValue* DoGetPadding();
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nsIDOMCSSValue* DoGetPaddingTop();
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nsIDOMCSSValue* DoGetPaddingBottom();
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nsIDOMCSSValue* DoGetPaddingLeft();
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nsIDOMCSSValue* DoGetPaddingRight();
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/* Table Properties */
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nsIDOMCSSValue* DoGetBorderCollapse();
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nsIDOMCSSValue* DoGetBorderSpacing();
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nsIDOMCSSValue* DoGetCaptionSide();
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nsIDOMCSSValue* DoGetEmptyCells();
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nsIDOMCSSValue* DoGetTableLayout();
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nsIDOMCSSValue* DoGetVerticalAlign();
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/* Border Properties */
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nsIDOMCSSValue* DoGetBorderStyle();
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nsIDOMCSSValue* DoGetBorderWidth();
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nsIDOMCSSValue* DoGetBorderTopStyle();
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nsIDOMCSSValue* DoGetBorderBottomStyle();
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nsIDOMCSSValue* DoGetBorderLeftStyle();
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nsIDOMCSSValue* DoGetBorderRightStyle();
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nsIDOMCSSValue* DoGetBorderTopWidth();
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nsIDOMCSSValue* DoGetBorderBottomWidth();
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nsIDOMCSSValue* DoGetBorderLeftWidth();
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nsIDOMCSSValue* DoGetBorderRightWidth();
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nsIDOMCSSValue* DoGetBorderTopColor();
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nsIDOMCSSValue* DoGetBorderBottomColor();
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nsIDOMCSSValue* DoGetBorderLeftColor();
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nsIDOMCSSValue* DoGetBorderRightColor();
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nsIDOMCSSValue* DoGetBorderBottomColors();
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nsIDOMCSSValue* DoGetBorderLeftColors();
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nsIDOMCSSValue* DoGetBorderRightColors();
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nsIDOMCSSValue* DoGetBorderTopColors();
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nsIDOMCSSValue* DoGetBorderBottomLeftRadius();
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nsIDOMCSSValue* DoGetBorderBottomRightRadius();
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nsIDOMCSSValue* DoGetBorderTopLeftRadius();
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nsIDOMCSSValue* DoGetBorderTopRightRadius();
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nsIDOMCSSValue* DoGetFloatEdge();
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nsIDOMCSSValue* DoGetBorderImage();
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/* Box Shadow */
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nsIDOMCSSValue* DoGetBoxShadow();
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/* Window Shadow */
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nsIDOMCSSValue* DoGetWindowShadow();
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/* Margin Properties */
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nsIDOMCSSValue* DoGetMarginWidth();
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nsIDOMCSSValue* DoGetMarginTopWidth();
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nsIDOMCSSValue* DoGetMarginBottomWidth();
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nsIDOMCSSValue* DoGetMarginLeftWidth();
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nsIDOMCSSValue* DoGetMarginRightWidth();
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/* Outline Properties */
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nsIDOMCSSValue* DoGetOutline();
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nsIDOMCSSValue* DoGetOutlineWidth();
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nsIDOMCSSValue* DoGetOutlineStyle();
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nsIDOMCSSValue* DoGetOutlineColor();
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nsIDOMCSSValue* DoGetOutlineOffset();
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nsIDOMCSSValue* DoGetOutlineRadiusBottomLeft();
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nsIDOMCSSValue* DoGetOutlineRadiusBottomRight();
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nsIDOMCSSValue* DoGetOutlineRadiusTopLeft();
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nsIDOMCSSValue* DoGetOutlineRadiusTopRight();
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/* Content Properties */
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nsIDOMCSSValue* DoGetContent();
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nsIDOMCSSValue* DoGetCounterIncrement();
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nsIDOMCSSValue* DoGetCounterReset();
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nsIDOMCSSValue* DoGetMarkerOffset();
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/* Quotes Properties */
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nsIDOMCSSValue* DoGetQuotes();
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/* z-index */
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nsIDOMCSSValue* DoGetZIndex();
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/* List properties */
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nsIDOMCSSValue* DoGetListStyleImage();
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nsIDOMCSSValue* DoGetListStylePosition();
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nsIDOMCSSValue* DoGetListStyleType();
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nsIDOMCSSValue* DoGetImageRegion();
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/* Text Properties */
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nsIDOMCSSValue* DoGetLineHeight();
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nsIDOMCSSValue* DoGetTextAlign();
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nsIDOMCSSValue* DoGetTextDecoration();
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nsIDOMCSSValue* DoGetMozTextDecorationColor();
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nsIDOMCSSValue* DoGetMozTextDecorationStyle();
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nsIDOMCSSValue* DoGetTextIndent();
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nsIDOMCSSValue* DoGetTextTransform();
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nsIDOMCSSValue* DoGetTextShadow();
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nsIDOMCSSValue* DoGetLetterSpacing();
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nsIDOMCSSValue* DoGetWordSpacing();
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nsIDOMCSSValue* DoGetWhiteSpace();
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nsIDOMCSSValue* DoGetWordWrap();
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nsIDOMCSSValue* DoGetMozTabSize();
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/* Visibility properties */
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nsIDOMCSSValue* DoGetOpacity();
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nsIDOMCSSValue* DoGetPointerEvents();
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nsIDOMCSSValue* DoGetVisibility();
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/* Direction properties */
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nsIDOMCSSValue* DoGetDirection();
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nsIDOMCSSValue* DoGetUnicodeBidi();
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/* Display properties */
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nsIDOMCSSValue* DoGetBinding();
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nsIDOMCSSValue* DoGetClear();
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nsIDOMCSSValue* DoGetCssFloat();
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nsIDOMCSSValue* DoGetDisplay();
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nsIDOMCSSValue* DoGetPosition();
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nsIDOMCSSValue* DoGetClip();
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nsIDOMCSSValue* DoGetOverflow();
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nsIDOMCSSValue* DoGetOverflowX();
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nsIDOMCSSValue* DoGetOverflowY();
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nsIDOMCSSValue* DoGetResize();
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nsIDOMCSSValue* DoGetPageBreakAfter();
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nsIDOMCSSValue* DoGetPageBreakBefore();
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nsIDOMCSSValue* DoGetMozTransform();
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nsIDOMCSSValue* DoGetMozTransformOrigin();
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/* User interface properties */
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nsIDOMCSSValue* DoGetCursor();
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nsIDOMCSSValue* DoGetForceBrokenImageIcon();
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nsIDOMCSSValue* DoGetIMEMode();
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nsIDOMCSSValue* DoGetUserFocus();
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nsIDOMCSSValue* DoGetUserInput();
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nsIDOMCSSValue* DoGetUserModify();
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nsIDOMCSSValue* DoGetUserSelect();
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/* Column properties */
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nsIDOMCSSValue* DoGetColumnCount();
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nsIDOMCSSValue* DoGetColumnWidth();
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nsIDOMCSSValue* DoGetColumnGap();
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nsIDOMCSSValue* DoGetColumnRuleWidth();
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nsIDOMCSSValue* DoGetColumnRuleStyle();
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nsIDOMCSSValue* DoGetColumnRuleColor();
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/* CSS Transitions */
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nsIDOMCSSValue* DoGetTransitionProperty();
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nsIDOMCSSValue* DoGetTransitionDuration();
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nsIDOMCSSValue* DoGetTransitionDelay();
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nsIDOMCSSValue* DoGetTransitionTimingFunction();
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#ifdef MOZ_CSS_ANIMATIONS
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/* CSS Animations */
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nsIDOMCSSValue* DoGetAnimationName();
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nsIDOMCSSValue* DoGetAnimationDuration();
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nsIDOMCSSValue* DoGetAnimationDelay();
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nsIDOMCSSValue* DoGetAnimationTimingFunction();
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nsIDOMCSSValue* DoGetAnimationDirection();
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nsIDOMCSSValue* DoGetAnimationFillMode();
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nsIDOMCSSValue* DoGetAnimationIterationCount();
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nsIDOMCSSValue* DoGetAnimationPlayState();
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#endif
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/* SVG properties */
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nsIDOMCSSValue* DoGetFill();
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nsIDOMCSSValue* DoGetStroke();
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nsIDOMCSSValue* DoGetMarkerEnd();
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nsIDOMCSSValue* DoGetMarkerMid();
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nsIDOMCSSValue* DoGetMarkerStart();
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nsIDOMCSSValue* DoGetStrokeDasharray();
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nsIDOMCSSValue* DoGetStrokeDashoffset();
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nsIDOMCSSValue* DoGetStrokeWidth();
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nsIDOMCSSValue* DoGetFillOpacity();
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nsIDOMCSSValue* DoGetFloodOpacity();
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nsIDOMCSSValue* DoGetStopOpacity();
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nsIDOMCSSValue* DoGetStrokeMiterlimit();
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nsIDOMCSSValue* DoGetStrokeOpacity();
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nsIDOMCSSValue* DoGetClipRule();
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nsIDOMCSSValue* DoGetFillRule();
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nsIDOMCSSValue* DoGetStrokeLinecap();
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nsIDOMCSSValue* DoGetStrokeLinejoin();
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nsIDOMCSSValue* DoGetTextAnchor();
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nsIDOMCSSValue* DoGetColorInterpolation();
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nsIDOMCSSValue* DoGetColorInterpolationFilters();
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nsIDOMCSSValue* DoGetDominantBaseline();
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nsIDOMCSSValue* DoGetImageRendering();
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nsIDOMCSSValue* DoGetShapeRendering();
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nsIDOMCSSValue* DoGetTextRendering();
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nsIDOMCSSValue* DoGetFloodColor();
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nsIDOMCSSValue* DoGetLightingColor();
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nsIDOMCSSValue* DoGetStopColor();
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nsIDOMCSSValue* DoGetClipPath();
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nsIDOMCSSValue* DoGetFilter();
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nsIDOMCSSValue* DoGetMask();
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nsROCSSPrimitiveValue* GetROCSSPrimitiveValue();
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nsDOMCSSValueList* GetROCSSValueList(PRBool aCommaDelimited);
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void SetToRGBAColor(nsROCSSPrimitiveValue* aValue, nscolor aColor);
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void SetValueToStyleImage(const nsStyleImage& aStyleImage,
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nsROCSSPrimitiveValue* aValue);
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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 NS_MAX of the value in aMinAppUnits and the NS_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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PRBool aClampNegativeCalc,
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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 aClampNegativeCalc);
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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);
|
|
PRBool GetFrameBorderRectWidth(nscoord& aWidth);
|
|
PRBool GetFrameBorderRectHeight(nscoord& aHeight);
|
|
|
|
struct ComputedStyleMapEntry
|
|
{
|
|
// Create a pointer-to-member-function type.
|
|
typedef nsIDOMCSSValue* (nsComputedDOMStyle::*ComputeMethod)();
|
|
|
|
nsCSSProperty mProperty;
|
|
ComputeMethod mGetter;
|
|
PRBool mNeedsLayoutFlush;
|
|
};
|
|
|
|
static const ComputedStyleMapEntry* GetQueryablePropertyMap(PRUint32* aLength);
|
|
|
|
// 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;
|
|
|
|
/*
|
|
* Strong reference to the style context while we're accessing the data from
|
|
* it. This can be either a style context we resolved ourselves or a style
|
|
* context we got from our frame.
|
|
*/
|
|
nsRefPtr<nsStyleContext> mStyleContextHolder;
|
|
nsCOMPtr<nsIAtom> mPseudo;
|
|
|
|
/*
|
|
* 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;
|
|
|
|
PRPackedBool mExposeVisitedStyle;
|
|
|
|
#ifdef DEBUG
|
|
PRBool mFlushedPendingReflows;
|
|
#endif
|
|
};
|
|
|
|
nsresult
|
|
NS_NewComputedDOMStyle(nsIDOMElement *aElement, const nsAString &aPseudoElt,
|
|
nsIPresShell *aPresShell,
|
|
nsComputedDOMStyle **aComputedStyle);
|
|
|
|
#endif /* nsComputedDOMStyle_h__ */
|
|
|