зеркало из https://github.com/mozilla/gecko-dev.git
132 строки
4.4 KiB
C++
132 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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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#ifndef __nsXPLookAndFeel
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#define __nsXPLookAndFeel
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#include "mozilla/LookAndFeel.h"
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#include "mozilla/ServoStyleConsts.h"
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#include "nsTArray.h"
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class nsLookAndFeel;
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struct nsLookAndFeelIntPref {
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const char* name;
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mozilla::LookAndFeel::IntID id;
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bool isSet;
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int32_t intVar;
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};
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struct nsLookAndFeelFloatPref {
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const char* name;
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mozilla::LookAndFeel::FloatID id;
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bool isSet;
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float floatVar;
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};
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#define CACHE_BLOCK(x) (uint32_t(x) >> 5)
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#define CACHE_BIT(x) (1 << (uint32_t(x) & 31))
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#define COLOR_CACHE_SIZE (CACHE_BLOCK(uint32_t(LookAndFeel::ColorID::End)) + 1)
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#define IS_COLOR_CACHED(x) \
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(CACHE_BIT(x) & nsXPLookAndFeel::sCachedColorBits[CACHE_BLOCK(x)])
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#define CLEAR_COLOR_CACHE(x) \
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nsXPLookAndFeel::sCachedColors[uint32_t(x)] = 0; \
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nsXPLookAndFeel::sCachedColorBits[CACHE_BLOCK(x)] &= ~(CACHE_BIT(x));
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#define CACHE_COLOR(x, y) \
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nsXPLookAndFeel::sCachedColors[uint32_t(x)] = y; \
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nsXPLookAndFeel::sCachedColorBits[CACHE_BLOCK(x)] |= CACHE_BIT(x);
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class nsXPLookAndFeel : public mozilla::LookAndFeel {
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public:
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virtual ~nsXPLookAndFeel();
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static nsXPLookAndFeel* GetInstance();
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static void Shutdown();
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void Init();
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//
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// All these routines will return NS_OK if they have a value,
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// in which case the nsLookAndFeel should use that value;
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// otherwise we'll return NS_ERROR_NOT_AVAILABLE, in which case, the
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// platform-specific nsLookAndFeel should use its own values instead.
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//
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nsresult GetColorImpl(ColorID aID, bool aUseStandinsForNativeColors,
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nscolor& aResult);
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virtual nsresult GetIntImpl(IntID aID, int32_t& aResult);
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virtual nsresult GetFloatImpl(FloatID aID, float& aResult);
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// This one is different: there are no override prefs (fixme?), so
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// there is no XP implementation, only per-system impls.
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virtual bool GetFontImpl(FontID aID, nsString& aName,
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gfxFontStyle& aStyle) = 0;
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virtual void RefreshImpl();
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virtual char16_t GetPasswordCharacterImpl() { return char16_t('*'); }
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virtual bool GetEchoPasswordImpl() { return false; }
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virtual uint32_t GetPasswordMaskDelayImpl() { return 600; }
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virtual nsTArray<LookAndFeelInt> GetIntCacheImpl();
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virtual void SetIntCacheImpl(
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const nsTArray<LookAndFeelInt>& aLookAndFeelIntCache) {}
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void SetShouldRetainCacheImplForTest(bool aValue) {
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mShouldRetainCacheForTest = aValue;
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}
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virtual void NativeInit() = 0;
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void SetPrefersReducedMotionOverrideForTest(bool aValue) {
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sIsInPrefersReducedMotionForTest = true;
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sPrefersReducedMotionForTest = aValue;
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}
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void ResetPrefersReducedMotionOverrideForTest() {
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sIsInPrefersReducedMotionForTest = false;
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sPrefersReducedMotionForTest = false;
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}
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protected:
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nsXPLookAndFeel();
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static void IntPrefChanged(nsLookAndFeelIntPref* data);
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static void FloatPrefChanged(nsLookAndFeelFloatPref* data);
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static void ColorPrefChanged(unsigned int index, const char* prefName);
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static void NotifyPrefChanged();
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void InitFromPref(nsLookAndFeelIntPref* aPref);
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void InitFromPref(nsLookAndFeelFloatPref* aPref);
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void InitColorFromPref(int32_t aIndex);
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virtual nsresult NativeGetColor(ColorID aID, nscolor& aResult) = 0;
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bool IsSpecialColor(ColorID aID, nscolor& aColor);
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bool ColorIsNotCSSAccessible(ColorID aID);
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nscolor GetStandinForNativeColor(ColorID aID);
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static void OnPrefChanged(const char* aPref, void* aClosure);
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static bool sInitialized;
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static nsLookAndFeelIntPref sIntPrefs[];
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static nsLookAndFeelFloatPref sFloatPrefs[];
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/* this length must not be shorter than the length of the longest string in
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* the array see nsXPLookAndFeel.cpp
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*/
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static const char sColorPrefs[][41];
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static int32_t sCachedColors[size_t(LookAndFeel::ColorID::End)];
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static int32_t sCachedColorBits[COLOR_CACHE_SIZE];
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static nsXPLookAndFeel* sInstance;
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static bool sShutdown;
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static bool sIsInPrefersReducedMotionForTest;
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static bool sPrefersReducedMotionForTest;
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// True if we shouldn't clear the cache value in RefreshImpl().
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// NOTE: This should be used only for testing.
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bool mShouldRetainCacheForTest;
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};
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#endif
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