/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the NPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsPresContext_h___ #define nsPresContext_h___ #include "nsIPresContext.h" #include "nsIDeviceContext.h" #include "nsVoidArray.h" #include "nsFont.h" #include "nsCRT.h" #include "nsCOMPtr.h" #include "nsIPref.h" #include "nsICharsetConverterManager.h" #include "nsILanguageAtomService.h" #include "nsIURL.h" #include "nsIEventStateManager.h" #include "nsIObserver.h" #include "nsILookAndFeel.h" #ifdef IBMBIDI #include "nsIUBidiUtils.h" #endif #include "nsHashtable.h" #include "nsIContent.h" #include "nsITheme.h" // Base class for concrete presentation context classes class nsPresContext : public nsIPresContext, public nsIObserver { public: NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW // nsISupports methods NS_DECL_ISUPPORTS // nsIPresContext methods NS_IMETHOD Init(nsIDeviceContext* aDeviceContext); NS_IMETHOD SetShell(nsIPresShell* aShell); NS_IMETHOD GetShell(nsIPresShell** aResult); NS_IMETHOD GetCompatibilityMode(nsCompatibility* aModeResult); NS_IMETHOD SetCompatibilityMode(nsCompatibility aMode); NS_IMETHOD GetWidgetRenderingMode(nsWidgetRendering* aModeResult); NS_IMETHOD SetWidgetRenderingMode(nsWidgetRendering aMode); NS_IMETHOD GetImageAnimationMode(PRUint16* aModeResult); NS_IMETHOD SetImageAnimationMode(PRUint16 aMode); NS_IMETHOD GetImageLoadFlags(nsLoadFlags& aLoadFlags); NS_IMETHOD GetLookAndFeel(nsILookAndFeel** aLookAndFeel); NS_IMETHOD GetBaseURL(nsIURI** aURLResult); NS_IMETHOD GetMedium(nsIAtom** aMediumResult) = 0; NS_IMETHOD ClearStyleDataAndReflow(void); NS_IMETHOD ResolveStyleContextFor(nsIContent* aContent, nsIStyleContext* aParentContext, PRBool aForceUnique, nsIStyleContext** aResult); NS_IMETHOD ResolveStyleContextForNonElement(nsIStyleContext* aParentContext, PRBool aForceUnique, nsIStyleContext** aResult); NS_IMETHOD ResolvePseudoStyleContextFor(nsIContent* aParentContent, nsIAtom* aPseudoTag, nsIStyleContext* aParentContext, PRBool aForceUnique, nsIStyleContext** aResult); NS_IMETHOD ResolvePseudoStyleWithComparator(nsIContent* aParentContent, nsIAtom* aPseudoTag, nsIStyleContext* aParentContext, PRBool aForceUnique, nsICSSPseudoComparator* aComparator, nsIStyleContext** aResult); NS_IMETHOD ProbePseudoStyleContextFor(nsIContent* aParentContent, nsIAtom* aPseudoTag, nsIStyleContext* aParentContext, PRBool aForceUnique, nsIStyleContext** aResult); NS_IMETHOD ReParentStyleContext(nsIFrame* aFrame, nsIStyleContext* aNewParentContext); NS_IMETHOD GetMetricsFor(const nsFont& aFont, nsIFontMetrics** aResult); NS_IMETHOD AllocateFromShell(size_t aSize, void** aResult); NS_IMETHOD FreeToShell(size_t aSize, void* aFreeChunk); NS_IMETHOD GetDefaultFont(PRUint8 aFontID, const nsFont** aResult); NS_IMETHOD SetDefaultFont(PRUint8 aFontID, const nsFont& aFont); NS_IMETHOD GetCachedBoolPref(PRUint32 aPrefType, PRBool& aValue); NS_IMETHOD GetCachedIntPref(PRUint32 aPrefType, PRInt32& aValue); NS_IMETHOD GetFontScaler(PRInt32* aResult); NS_IMETHOD SetFontScaler(PRInt32 aScaler); NS_IMETHOD GetDefaultColor(nscolor* aColor); NS_IMETHOD GetDefaultBackgroundColor(nscolor* aColor); NS_IMETHOD GetDefaultBackgroundImage(nsString& aImage); NS_IMETHOD GetDefaultBackgroundImageRepeat(PRUint8* aRepeat); NS_IMETHOD GetDefaultBackgroundImageOffset(nscoord* aX, nscoord* aY); NS_IMETHOD GetDefaultBackgroundImageAttachment(PRUint8* aRepeat); NS_IMETHOD GetDefaultLinkColor(nscolor* aColor); NS_IMETHOD GetDefaultVisitedLinkColor(nscolor* aColor); NS_IMETHOD GetFocusBackgroundColor(nscolor* aColor); NS_IMETHOD GetFocusTextColor(nscolor* aColor); NS_IMETHOD GetUseFocusColors(PRBool& useFocusColors); NS_IMETHOD GetFocusRingWidth(PRUint8 *focusRingWidth); NS_IMETHOD GetFocusRingOnAnything(PRBool& focusRingOnAnything); NS_IMETHOD SetDefaultColor(nscolor aColor); NS_IMETHOD SetDefaultBackgroundColor(nscolor aColor); NS_IMETHOD SetDefaultBackgroundImage(const nsString& aImage); NS_IMETHOD SetDefaultBackgroundImageRepeat(PRUint8 aRepeat); NS_IMETHOD SetDefaultBackgroundImageOffset(nscoord aX, nscoord aY); NS_IMETHOD SetDefaultBackgroundImageAttachment(PRUint8 aRepeat); NS_IMETHOD SetDefaultLinkColor(nscolor aColor); NS_IMETHOD SetDefaultVisitedLinkColor(nscolor aColor); NS_IMETHOD LoadImage(const nsString& aURL, nsIFrame* aTargetFrame, imgIRequest **aRequest); NS_IMETHOD StopImagesFor(nsIFrame* aTargetFrame); NS_IMETHOD SetContainer(nsISupports* aContainer); NS_IMETHOD GetContainer(nsISupports** aResult); NS_IMETHOD SetLinkHandler(nsILinkHandler* aHandler); NS_IMETHOD GetLinkHandler(nsILinkHandler** aResult); NS_IMETHOD GetVisibleArea(nsRect& aResult); NS_IMETHOD SetVisibleArea(const nsRect& r); NS_IMETHOD IsPaginated(PRBool* aResult) = 0; NS_IMETHOD SetPaginatedScrolling(PRBool aResult) = 0; NS_IMETHOD GetPaginatedScrolling(PRBool* aResult) = 0; NS_IMETHOD GetPageDim(nsRect* aActualRect, nsRect* aAdjRect) = 0; NS_IMETHOD SetPageDim(nsRect* aRect) = 0; NS_IMETHOD GetPixelsToTwips(float* aResult) const; NS_IMETHOD GetTwipsToPixels(float* aResult) const; NS_IMETHOD GetTwipsToPixelsForFonts(float* aResult) const; NS_IMETHOD GetScaledPixelsToTwips(float* aScale) const; NS_IMETHOD GetDeviceContext(nsIDeviceContext** aResult) const; NS_IMETHOD GetEventStateManager(nsIEventStateManager** aManager); NS_IMETHOD GetLanguage(nsILanguageAtom** aLanguage); NS_IMETHOD GetLanguageSpecificTransformType( nsLanguageSpecificTransformType* aType); NS_IMETHOD SetIsRenderingOnlySelection(PRBool aVal) { mIsRenderingOnlySelection = aVal; return NS_OK; } NS_IMETHOD IsRenderingOnlySelection(PRBool* aResult); NS_IMETHOD GetBackgroundDraw(PRBool &aCanDraw) { aCanDraw = mDrawBackground; return NS_OK; } NS_IMETHOD SetBackgroundDraw(PRBool aCanDraw) { mDrawBackground = aCanDraw; return NS_OK; } #ifdef MOZ_REFLOW_PERF NS_IMETHOD CountReflows(const char * aName, PRUint32 aType, nsIFrame * aFrame); NS_IMETHOD PaintCount(const char * aName, nsIRenderingContext* aRenderingContext, nsIFrame * aFrame, PRUint32 aColor); #endif // nsIObserver method NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic, const PRUnichar* aData); #ifdef IBMBIDI NS_IMETHOD GetBidiEnabled(PRBool* aBidiEnabled) const; NS_IMETHOD SetBidiEnabled(PRBool aBidiEnabled) const; NS_IMETHOD IsVisualMode(PRBool& aIsVisual) const; NS_IMETHOD SetVisualMode(PRBool aIsVisual); NS_IMETHOD GetBidiUtils(nsBidiPresUtils** aBidiUtils); NS_IMETHOD SetBidi(PRUint32 aSource, PRBool aForceReflow = PR_FALSE); NS_IMETHOD GetBidi(PRUint32* aDest); //ahmed NS_IMETHOD IsVisRTL(PRBool &aResult); NS_IMETHOD IsArabicEncoding(PRBool &aResult); //Mohamed 17-1-01 NS_IMETHOD SetIsBidiSystem(PRBool aIsBidi); NS_IMETHOD GetIsBidiSystem(PRBool &aResult) const; NS_IMETHOD GetBidiCharset(nsAWritableString &aCharSet); //Mohamed End #endif // IBMBIDI NS_IMETHOD GetTheme(nsITheme** aResult); NS_IMETHOD ThemeChanged(); protected: nsPresContext(); virtual ~nsPresContext(); // IMPORTANT: The ownership implicit in the following member variables has been // explicitly checked and set using nsCOMPtr for owning pointers and raw COM interface // pointers for weak (ie, non owning) references. If you add any members to this // class, please make the ownership explicit (pinkerton, scc). nsIPresShell* mShell; // [WEAK] nsCOMPtr mPrefs; nsRect mVisibleArea; nsCOMPtr mDeviceContext; // could be weak, but better safe than sorry. Cannot reintroduce cycles // since there is no dependency from gfx back to layout. nsCOMPtr mLangService; nsCOMPtr mLanguage; nsLanguageSpecificTransformType mLanguageSpecificTransformType; nsILinkHandler* mLinkHandler; // [WEAK] nsISupports* mContainer; // [WEAK] nsCOMPtr mLookAndFeel; nsFont mDefaultVariableFont; nsFont mDefaultFixedFont; nsFont mDefaultSerifFont; nsFont mDefaultSansSerifFont; nsFont mDefaultMonospaceFont; nsFont mDefaultCursiveFont; nsFont mDefaultFantasyFont; nscoord mMinimumFontSize; PRInt32 mFontScaler; PRPackedBool mUseDocumentFonts; // set in GetUserPrefs PRPackedBool mUseDocumentColors; // set in GetUserPrefs PRPackedBool mUnderlineLinks; // set in GetUserPrefs PRPackedBool mUseFocusColors; // set in GetUserPrefs nscolor mDefaultColor; // set in GetUserPrefs nscolor mDefaultBackgroundColor; // set in GetUserPrefs nscolor mLinkColor; // set in GetUserPrefs nscolor mVisitedLinkColor; // set in GetUserPrefs nscolor mFocusTextColor; // set in GetUserPrefs nscolor mFocusBackgroundColor; // set in GetUserPrefs PRUint8 mFocusRingWidth; // set in GetUserPrefs PRPackedBool mFocusRingOnAnything; // set in GetUserPrefs PRPackedBool mDrawBackground; PRUint8 mDefaultBackgroundImageAttachment; PRUint8 mDefaultBackgroundImageRepeat; nscoord mDefaultBackgroundImageOffsetX; nscoord mDefaultBackgroundImageOffsetY; nsString mDefaultBackgroundImage; nsSupportsHashtable mImageLoaders; nsCOMPtr mEventManager; nsCOMPtr mBaseURL; nsCompatibility mCompatibilityMode; PRPackedBool mCompatibilityLocked; nsWidgetRendering mWidgetRenderingMode; PRPackedBool mImageAnimationStopped; // image animation stopped PRUint16 mImageAnimationMode; PRPackedBool mStopped; // loading stopped PRPackedBool mStopChrome; // should we stop chrome? #ifdef IBMBIDI PRPackedBool mIsVisual; // is the Bidi text mode visual PRPackedBool mIsBidiSystem; // is the system capable of doing Bidi reordering #endif // IBMBIDI PRPackedBool mIsRenderingOnlySelection; #ifdef IBMBIDI nsBidiPresUtils* mBidiUtils; PRUint32 mBidi; nsAutoString mCharset; // the charset we are using #endif // IBMBIDI #ifdef DEBUG PRBool mInitialized; #endif PRUint16 mImageAnimationModePref; nsCOMPtr mTheme; PRBool mNoTheme; protected: void GetUserPreferences(); void GetFontPreferences(); void GetDocumentColorPreferences(); void UpdateCharSet(const PRUnichar* aCharSet); void SetImgAnimations(nsCOMPtr& aParent, PRUint16 aMode); private: static int PR_CALLBACK PrefChangedCallback(const char*, void*); void PreferenceChanged(const char* aPrefName); // these are private, use the list in nsFont.h if you want a public list enum { eDefaultFont_Variable, eDefaultFont_Fixed, eDefaultFont_Serif, eDefaultFont_SansSerif, eDefaultFont_Monospace, eDefaultFont_Cursive, eDefaultFont_Fantasy, eDefaultFont_COUNT }; }; #endif /* nsPresContext_h___ */