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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GTK_NATIVE_THEME_GTK_H_
#define UI_GTK_NATIVE_THEME_GTK_H_
#include "base/callback_list.h"
#include "base/no_destructor.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "ui/base/glib/glib_signal.h"
#include "ui/base/glib/scoped_gobject.h"
#include "ui/native_theme/native_theme_base.h"
typedef struct _GtkCssProvider GtkCssProvider;
typedef struct _GtkParamSpec GtkParamSpec;
typedef struct _GtkSettings GtkSettings;
namespace gtk {
using ScopedCssProvider = ScopedGObject<GtkCssProvider>;
// A version of NativeTheme that uses GTK-rendered widgets.
class NativeThemeGtk : public ui::NativeThemeBase {
public:
static NativeThemeGtk* instance();
NativeThemeGtk(const NativeThemeGtk&) = delete;
NativeThemeGtk& operator=(const NativeThemeGtk&) = delete;
// ui::NativeThemeBase:
void PaintMenuPopupBackground(
cc::PaintCanvas* canvas,
const ui::ColorProvider* color_provider,
const gfx::Size& size,
const MenuBackgroundExtraParams& menu_background,
ColorScheme color_scheme) const override;
void PaintMenuSeparator(
cc::PaintCanvas* canvas,
const ui::ColorProvider* color_provider,
State state,
const gfx::Rect& rect,
const MenuSeparatorExtraParams& menu_separator) const override;
void PaintMenuItemBackground(cc::PaintCanvas* canvas,
const ui::ColorProvider* color_provider,
State state,
const gfx::Rect& rect,
const MenuItemExtraParams& menu_item,
ColorScheme color_scheme) const override;
void PaintFrameTopArea(cc::PaintCanvas* canvas,
State state,
const gfx::Rect& rect,
const FrameTopAreaExtraParams& frame_top_area,
ColorScheme color_scheme) const override;
void NotifyOnNativeThemeUpdated() override;
void OnThemeChanged(GtkSettings* settings, GtkParamSpec* param);
private:
friend class base::NoDestructor<NativeThemeGtk>;
NativeThemeGtk();
~NativeThemeGtk() override;
void SetThemeCssOverride(ScopedCssProvider provider);
ScopedCssProvider theme_css_override_;
};
} // namespace gtk
#endif // UI_GTK_NATIVE_THEME_GTK_H_
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