| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_NATIVE_THEME_NATIVE_THEME_MAC_H_ |
| #define UI_NATIVE_THEME_NATIVE_THEME_MAC_H_ |
| |
| #include "base/mac/scoped_nsobject.h" |
| #include "base/macros.h" |
| #include "base/no_destructor.h" |
| #include "ui/native_theme/native_theme_base.h" |
| #include "ui/native_theme/native_theme_export.h" |
| |
| @class NativeThemeEffectiveAppearanceObserver; |
| |
| namespace ui { |
| |
| // Mac implementation of native theme support. |
| class NATIVE_THEME_EXPORT NativeThemeMac : public NativeThemeBase { |
| public: |
| static const int kButtonCornerRadius = 3; |
| |
| // Type of gradient to use on a button background. Use HIGHLIGHTED for the |
| // default button of a window and all combobox controls, but only when the |
| // window is active. |
| enum class ButtonBackgroundType { |
| DISABLED, |
| HIGHLIGHTED, |
| NORMAL, |
| PRESSED, |
| COUNT |
| }; |
| |
| // Adjusts an SkColor based on the current system control tint. For example, |
| // if the current tint is "graphite", this function maps the provided value to |
| // an appropriate gray. |
| static SkColor ApplySystemControlTint(SkColor color); |
| |
| // If the system is not running Mojave, or not forcing dark/light mode, do |
| // nothing. Otherwise, set the correct appearance on NSApp, adjusting for High |
| // Contrast if necessary. |
| // TODO(lgrey): Remove this when we're no longer suppressing dark mode by |
| // default. |
| static void MaybeUpdateBrowserAppearance(); |
| |
| // Overridden from NativeTheme: |
| SkColor GetSystemColor(ColorId color_id) const override; |
| |
| // Overridden from NativeThemeBase: |
| void PaintMenuPopupBackground( |
| cc::PaintCanvas* canvas, |
| const gfx::Size& size, |
| const MenuBackgroundExtraParams& menu_background) const override; |
| void PaintMenuItemBackground( |
| cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const MenuItemExtraParams& menu_item) const override; |
| bool UsesHighContrastColors() const override; |
| bool SystemDarkModeEnabled() const override; |
| |
| // Paints the styled button shape used for default controls on Mac. The basic |
| // style is used for dialog buttons, comboboxes, and tabbed pane tabs. |
| // Depending on the control part being drawn, the left or the right side can |
| // be given rounded corners. |
| static void PaintStyledGradientButton(cc::PaintCanvas* canvas, |
| const gfx::Rect& bounds, |
| ButtonBackgroundType type, |
| bool round_left, |
| bool round_right, |
| bool focus); |
| |
| protected: |
| friend class NativeTheme; |
| friend class base::NoDestructor<NativeThemeMac>; |
| static NativeThemeMac* instance(); |
| |
| private: |
| NativeThemeMac(); |
| ~NativeThemeMac() override; |
| |
| // Paint the selected menu item background, and a border for emphasis when in |
| // high contrast. |
| void PaintSelectedMenuItem(cc::PaintCanvas* canvas, |
| const gfx::Rect& rect) const; |
| |
| base::scoped_nsobject<NativeThemeEffectiveAppearanceObserver> |
| appearance_observer_; |
| id high_contrast_notification_token_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NativeThemeMac); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_NATIVE_THEME_NATIVE_THEME_MAC_H_ |