зеркало из https://github.com/mozilla/gecko-dev.git
521 строка
18 KiB
C++
521 строка
18 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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 "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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#include "nsStyleContext.h"
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class nsIFrame;
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class nsIPresShell;
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class nsComputedDOMStyle MOZ_FINAL : public nsDOMCSSDeclaration
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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_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsComputedDOMStyle,
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nsICSSDeclaration)
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NS_DECL_NSICSSDECLARATION
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NS_DECL_NSIDOMCSSSTYLEDECLARATION
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virtual void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName);
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nsComputedDOMStyle(mozilla::dom::Element* aElement,
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const nsAString& aPseudoElt,
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nsIPresShell* aPresShell);
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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(bool 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(bool);
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virtual nsresult SetCSSDeclaration(mozilla::css::Declaration*);
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virtual nsIDocument* DocToUpdate();
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virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv);
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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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uint8_t aFullCorner,
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bool 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(bool aFill);
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bool GetLineHeightCoord(nscoord& aCoord);
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nsIDOMCSSValue* GetCSSShadowArray(nsCSSShadowArray* aArray,
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const nscolor& aDefaultColor,
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bool aIsBoxShadow);
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nsIDOMCSSValue* GetBackgroundList(uint8_t nsStyleBackground::Layer::* aMember,
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uint32_t nsStyleBackground::* aCount,
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const int32_t 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* DoGetFontFeatureSettings();
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nsIDOMCSSValue* DoGetFontLanguageOverride();
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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* DoGetBackgroundSize();
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/* Padding properties */
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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* 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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/* Border Image */
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nsIDOMCSSValue* DoGetBorderImageSource();
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nsIDOMCSSValue* DoGetBorderImageSlice();
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nsIDOMCSSValue* DoGetBorderImageWidth();
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nsIDOMCSSValue* DoGetBorderImageOutset();
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nsIDOMCSSValue* DoGetBorderImageRepeat();
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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* 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* 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* DoGetTextAlignLast();
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nsIDOMCSSValue* DoGetMozTextBlink();
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nsIDOMCSSValue* DoGetTextDecoration();
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nsIDOMCSSValue* DoGetTextDecorationColor();
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nsIDOMCSSValue* DoGetTextDecorationLine();
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nsIDOMCSSValue* DoGetTextDecorationStyle();
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nsIDOMCSSValue* DoGetTextIndent();
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nsIDOMCSSValue* DoGetTextOverflow();
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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* DoGetWordBreak();
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nsIDOMCSSValue* DoGetWordWrap();
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nsIDOMCSSValue* DoGetHyphens();
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nsIDOMCSSValue* DoGetTabSize();
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nsIDOMCSSValue* DoGetTextSizeAdjust();
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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* DoGetTransform();
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nsIDOMCSSValue* DoGetTransformOrigin();
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nsIDOMCSSValue* DoGetPerspective();
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nsIDOMCSSValue* DoGetBackfaceVisibility();
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nsIDOMCSSValue* DoGetPerspectiveOrigin();
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nsIDOMCSSValue* DoGetTransformStyle();
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nsIDOMCSSValue* DoGetOrient();
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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* DoGetColumnFill();
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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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/* 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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#ifdef MOZ_FLEXBOX
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/* CSS Flexbox properties */
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nsIDOMCSSValue* DoGetAlignItems();
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nsIDOMCSSValue* DoGetAlignSelf();
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nsIDOMCSSValue* DoGetFlexBasis();
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nsIDOMCSSValue* DoGetFlexDirection();
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nsIDOMCSSValue* DoGetFlexGrow();
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nsIDOMCSSValue* DoGetFlexShrink();
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nsIDOMCSSValue* DoGetOrder();
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nsIDOMCSSValue* DoGetJustifyContent();
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#endif // MOZ_FLEXBOX
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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* DoGetVectorEffect();
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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(bool 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 true
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* if a percentage base value was determined, false otherwise.
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*/
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typedef bool (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 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 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 clamped to be no less than aMinAppUnits and no more than
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* 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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bool aClampNegativeCalc,
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PercentageBaseGetter aPercentageBaseGetter = nullptr,
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const int32_t aTable[] = nullptr,
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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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bool aClampNegativeCalc);
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bool GetCBContentWidth(nscoord& aWidth);
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bool GetCBContentHeight(nscoord& aWidth);
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bool GetFrameBoundsWidthForTransform(nscoord &aWidth);
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bool GetFrameBoundsHeightForTransform(nscoord &aHeight);
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bool GetFrameBorderRectWidth(nscoord& aWidth);
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bool GetFrameBorderRectHeight(nscoord& aHeight);
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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 nsIDOMCSSValue* (nsComputedDOMStyle::*ComputeMethod)();
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nsCSSProperty mProperty;
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ComputeMethod mGetter;
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bool mNeedsLayoutFlush;
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};
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static const ComputedStyleMapEntry* GetQueryablePropertyMap(uint32_t* aLength);
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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.
|
|
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
|
|
* context we got from our frame.
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|
*/
|
|
nsRefPtr<nsStyleContext> mStyleContextHolder;
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nsCOMPtr<nsIAtom> mPseudo;
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|
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/*
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|
* While computing style data, the primary frame for mContent --- named "outer"
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|
* because we should use it to compute positioning data. Null
|
|
* otherwise.
|
|
*/
|
|
nsIFrame* mOuterFrame;
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|
/*
|
|
* 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;
|
|
|
|
bool mExposeVisitedStyle;
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|
|
|
#ifdef DEBUG
|
|
bool mFlushedPendingReflows;
|
|
#endif
|
|
};
|
|
|
|
already_AddRefed<nsComputedDOMStyle>
|
|
NS_NewComputedDOMStyle(mozilla::dom::Element* aElement,
|
|
const nsAString& aPseudoElt,
|
|
nsIPresShell* aPresShell);
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|
|
#endif /* nsComputedDOMStyle_h__ */
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|