michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef __nsXPLookAndFeel
michael@0: #define __nsXPLookAndFeel
michael@0: 
michael@0: #include "mozilla/LookAndFeel.h"
michael@0: 
michael@0: class nsLookAndFeel;
michael@0: 
michael@0: struct nsLookAndFeelIntPref
michael@0: {
michael@0:   const char* name;
michael@0:   mozilla::LookAndFeel::IntID id;
michael@0:   bool isSet;
michael@0:   int32_t intVar;
michael@0: };
michael@0: 
michael@0: struct nsLookAndFeelFloatPref
michael@0: {
michael@0:   const char* name;
michael@0:   mozilla::LookAndFeel::FloatID id;
michael@0:   bool isSet;
michael@0:   float floatVar;
michael@0: };
michael@0: 
michael@0: #define CACHE_BLOCK(x)     ((x) >> 5)
michael@0: #define CACHE_BIT(x)       (1 << ((x) & 31))
michael@0: 
michael@0: #define COLOR_CACHE_SIZE   (CACHE_BLOCK(LookAndFeel::eColorID_LAST_COLOR) + 1)
michael@0: #define IS_COLOR_CACHED(x) (CACHE_BIT(x) & nsXPLookAndFeel::sCachedColorBits[CACHE_BLOCK(x)])
michael@0: #define CLEAR_COLOR_CACHE(x) nsXPLookAndFeel::sCachedColors[(x)] =0; \
michael@0:               nsXPLookAndFeel::sCachedColorBits[CACHE_BLOCK(x)] &= ~(CACHE_BIT(x));
michael@0: #define CACHE_COLOR(x, y)  nsXPLookAndFeel::sCachedColors[(x)] = y; \
michael@0:               nsXPLookAndFeel::sCachedColorBits[CACHE_BLOCK(x)] |= CACHE_BIT(x);
michael@0: 
michael@0: class nsXPLookAndFeel: public mozilla::LookAndFeel
michael@0: {
michael@0: public:
michael@0:   virtual ~nsXPLookAndFeel();
michael@0: 
michael@0:   static nsLookAndFeel* GetInstance();
michael@0:   static void Shutdown();
michael@0: 
michael@0:   void Init();
michael@0: 
michael@0:   //
michael@0:   // All these routines will return NS_OK if they have a value,
michael@0:   // in which case the nsLookAndFeel should use that value;
michael@0:   // otherwise we'll return NS_ERROR_NOT_AVAILABLE, in which case, the
michael@0:   // platform-specific nsLookAndFeel should use its own values instead.
michael@0:   //
michael@0:   nsresult GetColorImpl(ColorID aID, bool aUseStandinsForNativeColors,
michael@0:                         nscolor &aResult);
michael@0:   virtual nsresult GetIntImpl(IntID aID, int32_t &aResult);
michael@0:   virtual nsresult GetFloatImpl(FloatID aID, float &aResult);
michael@0: 
michael@0:   // This one is different: there are no override prefs (fixme?), so
michael@0:   // there is no XP implementation, only per-system impls.
michael@0:   virtual bool GetFontImpl(FontID aID, nsString& aName,
michael@0:                            gfxFontStyle& aStyle,
michael@0:                            float aDevPixPerCSSPixel) = 0;
michael@0: 
michael@0:   virtual void RefreshImpl();
michael@0: 
michael@0:   virtual char16_t GetPasswordCharacterImpl()
michael@0:   {
michael@0:     return char16_t('*');
michael@0:   }
michael@0: 
michael@0:   virtual bool GetEchoPasswordImpl()
michael@0:   {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   virtual uint32_t GetPasswordMaskDelayImpl()
michael@0:   {
michael@0:     return 600;
michael@0:   }
michael@0: 
michael@0: protected:
michael@0:   nsXPLookAndFeel();
michael@0: 
michael@0:   static void IntPrefChanged(nsLookAndFeelIntPref *data);
michael@0:   static void FloatPrefChanged(nsLookAndFeelFloatPref *data);
michael@0:   static void ColorPrefChanged(unsigned int index, const char *prefName);
michael@0:   void InitFromPref(nsLookAndFeelIntPref* aPref);
michael@0:   void InitFromPref(nsLookAndFeelFloatPref* aPref);
michael@0:   void InitColorFromPref(int32_t aIndex);
michael@0:   virtual nsresult NativeGetColor(ColorID aID, nscolor &aResult) = 0;
michael@0:   bool IsSpecialColor(ColorID aID, nscolor &aColor);
michael@0:   bool ColorIsNotCSSAccessible(ColorID aID);
michael@0:   nscolor GetStandinForNativeColor(ColorID aID);
michael@0: 
michael@0:   static void OnPrefChanged(const char* aPref, void* aClosure);
michael@0: 
michael@0:   static bool sInitialized;
michael@0:   static nsLookAndFeelIntPref sIntPrefs[];
michael@0:   static nsLookAndFeelFloatPref sFloatPrefs[];
michael@0:   /* this length must not be shorter than the length of the longest string in the array
michael@0:    * see nsXPLookAndFeel.cpp
michael@0:    */
michael@0:   static const char sColorPrefs[][38];
michael@0:   static int32_t sCachedColors[LookAndFeel::eColorID_LAST_COLOR];
michael@0:   static int32_t sCachedColorBits[COLOR_CACHE_SIZE];
michael@0:   static bool sUseNativeColors;
michael@0: 
michael@0:   static nsLookAndFeel* sInstance;
michael@0:   static bool sShutdown;
michael@0: };
michael@0: 
michael@0: #endif