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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __nsXPLookAndFeel
+#define __nsXPLookAndFeel
+
+#include "mozilla/Maybe.h"
+#include "mozilla/LookAndFeel.h"
+#include "mozilla/widget/LookAndFeelTypes.h"
+#include "nsTArray.h"
+
+class nsLookAndFeel;
+
+class nsXPLookAndFeel : public mozilla::LookAndFeel {
+ public:
+ using FullLookAndFeel = mozilla::widget::FullLookAndFeel;
+ using LookAndFeelFont = mozilla::widget::LookAndFeelFont;
+
+ virtual ~nsXPLookAndFeel();
+
+ static nsXPLookAndFeel* GetInstance();
+ static void Shutdown();
+
+ void Init();
+
+ // Gets the pref name for a given color, just for debugging purposes.
+ static const char* GetColorPrefName(ColorID);
+
+ // These functions will return a value specified by an override pref, if it
+ // exists, and otherwise will call into the NativeGetXxx function to get the
+ // platform-specific value.
+ //
+ // NS_ERROR_NOT_AVAILABLE is returned if there is neither an override pref or
+ // a platform-specific value.
+ nsresult GetColorValue(ColorID, ColorScheme, UseStandins, nscolor& aResult);
+ nsresult GetIntValue(IntID aID, int32_t& aResult);
+ nsresult GetFloatValue(FloatID aID, float& aResult);
+ // Same, but returns false if there is no platform-specific value.
+ // (There are no override prefs for font values.)
+ bool GetFontValue(FontID aID, nsString& aName, gfxFontStyle& aStyle);
+
+ virtual nsresult NativeGetInt(IntID aID, int32_t& aResult) = 0;
+ virtual nsresult NativeGetFloat(FloatID aID, float& aResult) = 0;
+ virtual nsresult NativeGetColor(ColorID, ColorScheme, nscolor& aResult) = 0;
+ virtual bool NativeGetFont(FontID aID, nsString& aName,
+ gfxFontStyle& aStyle) = 0;
+
+ virtual void RefreshImpl();
+
+ virtual char16_t GetPasswordCharacterImpl() { return char16_t('*'); }
+
+ virtual bool GetEchoPasswordImpl() { return false; }
+
+ virtual uint32_t GetPasswordMaskDelayImpl() { return 600; }
+
+ virtual bool GetDefaultDrawInTitlebar() { return true; }
+
+ virtual TitlebarAction GetTitlebarAction(TitlebarEvent aEvent) {
+ return TitlebarAction::None;
+ }
+
+ static bool LookAndFeelFontToStyle(const LookAndFeelFont&, nsString& aName,
+ gfxFontStyle&);
+ static LookAndFeelFont StyleToLookAndFeelFont(const nsAString& aName,
+ const gfxFontStyle&);
+
+ virtual void SetDataImpl(FullLookAndFeel&& aTables) {}
+
+ virtual void NativeInit() = 0;
+
+ virtual void GetThemeInfo(nsACString&) {}
+
+ protected:
+ nsXPLookAndFeel() = default;
+
+ static nscolor GetStandinForNativeColor(ColorID, ColorScheme);
+
+ // A platform-agnostic dark-color scheme, for platforms where we don't have
+ // "native" dark colors, like Windows and Android.
+ static mozilla::Maybe<nscolor> GenericDarkColor(ColorID);
+ mozilla::Maybe<nscolor> GetUncachedColor(ColorID, ColorScheme, UseStandins);
+
+ void RecordTelemetry();
+ virtual void RecordLookAndFeelSpecificTelemetry() {}
+
+ static void OnPrefChanged(const char* aPref, void* aClosure);
+
+ static bool sInitialized;
+
+ static nsXPLookAndFeel* sInstance;
+ static bool sShutdown;
+};
+
+#endif