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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_UI_LIBGTKUI_GTK2_UI_H_ | |
6 #define CHROME_BROWSER_UI_LIBGTKUI_GTK2_UI_H_ | |
7 | |
8 #include <map> | |
9 #include <memory> | |
10 #include <vector> | |
11 | |
12 #include "base/compiler_specific.h" | |
13 #include "base/macros.h" | |
14 #include "base/observer_list.h" | |
15 #include "chrome/browser/ui/libgtkui/gtk2_signal.h" | |
16 #include "chrome/browser/ui/libgtkui/libgtkui_export.h" | |
17 #include "ui/gfx/color_utils.h" | |
18 #include "ui/views/linux_ui/linux_ui.h" | |
19 #include "ui/views/window/frame_buttons.h" | |
20 | |
21 typedef struct _GtkStyle GtkStyle; | |
22 typedef struct _GtkWidget GtkWidget; | |
23 | |
24 class SkBitmap; | |
25 | |
26 namespace libgtkui { | |
27 class Gtk2KeyBindingsHandler; | |
28 class GConfListener; | |
29 | |
30 // Interface to GTK2 desktop features. | |
31 // | |
32 class Gtk2UI : public views::LinuxUI { | |
33 public: | |
34 Gtk2UI(); | |
35 ~Gtk2UI() override; | |
36 | |
37 typedef base::Callback<ui::NativeTheme*(aura::Window* window)> | |
38 NativeThemeGetter; | |
39 | |
40 // Setters used by GConfListener: | |
41 void SetWindowButtonOrdering( | |
42 const std::vector<views::FrameButton>& leading_buttons, | |
43 const std::vector<views::FrameButton>& trailing_buttons); | |
44 void SetNonClientMiddleClickAction(NonClientMiddleClickAction action); | |
45 | |
46 // Called when gtk style changes | |
47 void ResetStyle(); | |
48 | |
49 // ui::LinuxInputMethodContextFactory: | |
50 std::unique_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext( | |
51 ui::LinuxInputMethodContextDelegate* delegate, | |
52 bool is_simple) const override; | |
53 | |
54 // gfx::LinuxFontDelegate: | |
55 gfx::FontRenderParams GetDefaultFontRenderParams() const override; | |
56 void GetDefaultFontDescription( | |
57 std::string* family_out, | |
58 int* size_pixels_out, | |
59 int* style_out, | |
60 gfx::Font::Weight* weight_out, | |
61 gfx::FontRenderParams* params_out) const override; | |
62 | |
63 // ui::ShellDialogLinux: | |
64 ui::SelectFileDialog* CreateSelectFileDialog( | |
65 ui::SelectFileDialog::Listener* listener, | |
66 ui::SelectFilePolicy* policy) const override; | |
67 | |
68 // ui::LinuxUI: | |
69 void Initialize() override; | |
70 bool GetTint(int id, color_utils::HSL* tint) const override; | |
71 bool GetColor(int id, SkColor* color) const override; | |
72 SkColor GetFocusRingColor() const override; | |
73 SkColor GetThumbActiveColor() const override; | |
74 SkColor GetThumbInactiveColor() const override; | |
75 SkColor GetTrackColor() const override; | |
76 SkColor GetActiveSelectionBgColor() const override; | |
77 SkColor GetActiveSelectionFgColor() const override; | |
78 SkColor GetInactiveSelectionBgColor() const override; | |
79 SkColor GetInactiveSelectionFgColor() const override; | |
80 double GetCursorBlinkInterval() const override; | |
81 ui::NativeTheme* GetNativeTheme(aura::Window* window) const override; | |
82 void SetNativeThemeOverride(const NativeThemeGetter& callback) override; | |
83 bool GetDefaultUsesSystemTheme() const override; | |
84 void SetDownloadCount(int count) const override; | |
85 void SetProgressFraction(float percentage) const override; | |
86 bool IsStatusIconSupported() const override; | |
87 std::unique_ptr<views::StatusIconLinux> CreateLinuxStatusIcon( | |
88 const gfx::ImageSkia& image, | |
89 const base::string16& tool_tip) const override; | |
90 gfx::Image GetIconForContentType(const std::string& content_type, | |
91 int size) const override; | |
92 std::unique_ptr<views::Border> CreateNativeBorder( | |
93 views::LabelButton* owning_button, | |
94 std::unique_ptr<views::LabelButtonBorder> border) override; | |
95 void AddWindowButtonOrderObserver( | |
96 views::WindowButtonOrderObserver* observer) override; | |
97 void RemoveWindowButtonOrderObserver( | |
98 views::WindowButtonOrderObserver* observer) override; | |
99 bool UnityIsRunning() override; | |
100 NonClientMiddleClickAction GetNonClientMiddleClickAction() override; | |
101 void NotifyWindowManagerStartupComplete() override; | |
102 | |
103 // ui::TextEditKeybindingDelegate: | |
104 bool MatchEvent(const ui::Event& event, | |
105 std::vector<ui::TextEditCommandAuraLinux>* commands) override; | |
106 | |
107 // ui::Views::LinuxUI: | |
108 void UpdateDeviceScaleFactor(float device_scale_factor) override; | |
109 float GetDeviceScaleFactor() const override; | |
110 | |
111 private: | |
112 typedef std::map<int, SkColor> ColorMap; | |
113 typedef std::map<int, color_utils::HSL> TintMap; | |
114 | |
115 // This method returns the colors webkit will use for the scrollbars. When no | |
116 // colors are specified by the GTK+ theme, this function averages of the | |
117 // thumb part and of the track colors. | |
118 void SetScrollbarColors(); | |
119 | |
120 // Extracts colors and tints from the GTK theme, both for the | |
121 // ThemeService interface and the colors we send to webkit. | |
122 void LoadGtkValues(); | |
123 | |
124 // Initialize the Xcursor theme and size with the GTK theme and size. | |
125 void LoadCursorTheme(); | |
126 | |
127 // Reads in explicit theme frame colors from the ChromeGtkFrame style class | |
128 // or generates them per our fallback algorithm. | |
129 void BuildFrameColors(); | |
130 | |
131 // Gets a tint which depends on the default for |id| as well as |color|. | |
132 color_utils::HSL ColorToTint(int id, SkColor color); | |
133 | |
134 // Returns the tint for buttons that contrasts with the normal window | |
135 // background color. | |
136 void GetNormalButtonTintHSL(color_utils::HSL* tint) const; | |
137 | |
138 // Returns a tint that's the color of the current normal text in an entry. | |
139 void GetNormalEntryForegroundHSL(color_utils::HSL* tint) const; | |
140 | |
141 // Returns a tint that's the color of the current highlighted text in an | |
142 // entry. | |
143 void GetSelectedEntryForegroundHSL(color_utils::HSL* tint) const; | |
144 | |
145 // Gets a color for the background of the prominent button. | |
146 SkColor GetProminentButtonBgColor(int gtk_state) const; | |
147 | |
148 // Updates |default_font_*|. | |
149 void UpdateDefaultFont(); | |
150 | |
151 // Colors calculated by LoadGtkValues() that are given to the | |
152 // caller while |use_gtk_| is true. | |
153 ColorMap colors_; | |
154 | |
155 // Colors used to tint certain icons. | |
156 color_utils::HSL button_tint_; | |
157 color_utils::HSL entry_tint_; | |
158 color_utils::HSL selected_entry_tint_; | |
159 | |
160 // Colors that we pass to WebKit. These are generated each time the theme | |
161 // changes. | |
162 SkColor focus_ring_color_; | |
163 SkColor thumb_active_color_; | |
164 SkColor thumb_inactive_color_; | |
165 SkColor track_color_; | |
166 SkColor active_selection_bg_color_; | |
167 SkColor active_selection_fg_color_; | |
168 SkColor inactive_selection_bg_color_; | |
169 SkColor inactive_selection_fg_color_; | |
170 | |
171 // Details about the default UI font. | |
172 std::string default_font_family_; | |
173 int default_font_size_pixels_; | |
174 int default_font_style_; // Bitfield of gfx::Font::Style values. | |
175 gfx::Font::Weight default_font_weight_; | |
176 gfx::FontRenderParams default_font_render_params_; | |
177 | |
178 #if defined(USE_GCONF) | |
179 // Currently, the only source of window button configuration. This will | |
180 // change if we ever have to support XFCE's configuration system or KDE's. | |
181 std::unique_ptr<GConfListener> gconf_listener_; | |
182 #endif // defined(USE_GCONF) | |
183 | |
184 // If either of these vectors are non-empty, they represent the current | |
185 // window button configuration. | |
186 std::vector<views::FrameButton> leading_buttons_; | |
187 std::vector<views::FrameButton> trailing_buttons_; | |
188 | |
189 std::unique_ptr<Gtk2KeyBindingsHandler> key_bindings_handler_; | |
190 | |
191 // Objects to notify when the window frame button order changes. | |
192 base::ObserverList<views::WindowButtonOrderObserver> observer_list_; | |
193 | |
194 // Whether we should lower the window on a middle click to the non client | |
195 // area. | |
196 NonClientMiddleClickAction middle_click_action_; | |
197 | |
198 // Used to override the native theme for a window. If no override is provided | |
199 // or the callback returns NULL, Gtk2UI will default to a NativeThemeGtk2 | |
200 // instance. | |
201 NativeThemeGetter native_theme_overrider_; | |
202 | |
203 float device_scale_factor_; | |
204 | |
205 DISALLOW_COPY_AND_ASSIGN(Gtk2UI); | |
206 }; | |
207 | |
208 } // namespace libgtkui | |
209 | |
210 // Access point to the GTK2 desktop system. This should be the only symbol that | |
211 // is exported in the library; everything else should be used through the | |
212 // interface, because eventually this .so will be loaded through dlopen at | |
213 // runtime so our main binary can conditionally load GTK2 or GTK3 or EFL or | |
214 // QT or whatever. | |
215 LIBGTKUI_EXPORT views::LinuxUI* BuildGtk2UI(); | |
216 | |
217 #endif // CHROME_BROWSER_UI_LIBGTKUI_GTK2_UI_H_ | |
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