OLD | NEW |
| (Empty) |
1 // Copyright (c) 2012 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_GTK_GTK_THEME_SERVICE_H_ | |
6 #define CHROME_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_ | |
7 | |
8 #include <map> | |
9 #include <vector> | |
10 | |
11 #include "base/compiler_specific.h" | |
12 #include "base/lazy_instance.h" | |
13 #include "base/memory/scoped_ptr.h" | |
14 #include "base/prefs/pref_change_registrar.h" | |
15 #include "chrome/browser/themes/theme_service.h" | |
16 #include "ui/base/glib/glib_integers.h" | |
17 #include "ui/base/gtk/gtk_signal.h" | |
18 #include "ui/base/gtk/owned_widget_gtk.h" | |
19 #include "ui/gfx/color_utils.h" | |
20 | |
21 class CustomThemeSupplier; | |
22 class Profile; | |
23 | |
24 namespace content { | |
25 class NotificationObserver; | |
26 } | |
27 | |
28 namespace extensions { | |
29 class Extension; | |
30 } | |
31 | |
32 namespace gfx { | |
33 class CairoCachedSurface; | |
34 } | |
35 | |
36 namespace ui { | |
37 class GtkSignalRegistrar; | |
38 } | |
39 | |
40 typedef struct _GdkDisplay GdkDisplay; | |
41 typedef struct _GdkEventExpose GdkEventExpose; | |
42 typedef struct _GdkPixbuf GdkPixbuf; | |
43 typedef struct _GtkIconSet GtkIconSet; | |
44 typedef struct _GtkStyle GtkStyle; | |
45 typedef struct _GtkWidget GtkWidget; | |
46 | |
47 // Specialization of ThemeService which supplies system colors. | |
48 class GtkThemeService : public ThemeService { | |
49 public: | |
50 // A list of integer keys for a separate PerDisplaySurfaceMap that keeps | |
51 // what would otherwise be static icons on the X11 server. | |
52 enum CairoDefaultIcon { | |
53 NATIVE_FAVICON = 1, | |
54 CHROME_FAVICON, | |
55 NATIVE_FOLDER, | |
56 CHROME_FOLDER | |
57 }; | |
58 | |
59 // Returns GtkThemeService, casted from our superclass. | |
60 static GtkThemeService* GetFrom(Profile* profile); | |
61 | |
62 GtkThemeService(); | |
63 virtual ~GtkThemeService(); | |
64 | |
65 // Calls |observer|.Observe() for the browser theme with this provider as the | |
66 // source. | |
67 void InitThemesFor(content::NotificationObserver* observer); | |
68 | |
69 // Overridden from ThemeService: | |
70 // | |
71 // Sets that we aren't using the system theme, then calls | |
72 // ThemeService's implementation. | |
73 virtual void Init(Profile* profile) OVERRIDE; | |
74 virtual gfx::ImageSkia* GetImageSkiaNamed(int id) const OVERRIDE; | |
75 virtual gfx::Image GetImageNamed(int id) const OVERRIDE; | |
76 virtual SkColor GetColor(int id) const OVERRIDE; | |
77 virtual bool HasCustomImage(int id) const OVERRIDE; | |
78 virtual void SetTheme(const extensions::Extension* extension) OVERRIDE; | |
79 virtual void UseDefaultTheme() OVERRIDE; | |
80 virtual void SetNativeTheme() OVERRIDE; | |
81 virtual bool UsingDefaultTheme() const OVERRIDE; | |
82 virtual bool UsingNativeTheme() const OVERRIDE; | |
83 virtual void SetCustomDefaultTheme( | |
84 scoped_refptr<CustomThemeSupplier> theme_supplier) OVERRIDE; | |
85 virtual bool ShouldInitWithNativeTheme() const OVERRIDE; | |
86 | |
87 // Creates a GtkChromeButton instance, registered with this theme provider, | |
88 // with a "destroy" signal to remove it from our internal list when it goes | |
89 // away. | |
90 GtkWidget* BuildChromeButton(); | |
91 | |
92 // Creates a GtkChromeLinkButton instance. We update its state as theme | |
93 // changes, and listen for its destruction. | |
94 GtkWidget* BuildChromeLinkButton(const std::string& text); | |
95 | |
96 // Builds a GtkLabel that is |color| in chrome theme mode, and the normal | |
97 // text color in gtk-mode. Like the previous two calls, listens for the | |
98 // object's destruction. | |
99 GtkWidget* BuildLabel(const std::string& text, const GdkColor& color); | |
100 | |
101 // Creates a theme-aware vertical separator widget. | |
102 GtkWidget* CreateToolbarSeparator(); | |
103 | |
104 // A wrapper around ui::ThemeProvider::GetColor, transforming the result to a | |
105 // GdkColor. | |
106 GdkColor GetGdkColor(int id) const; | |
107 | |
108 // A weighted average between the text color and the background color of a | |
109 // label. Used for borders between GTK stuff and the webcontent. | |
110 GdkColor GetBorderColor() const; | |
111 | |
112 // Returns a set of icons tinted for different GtkStateTypes based on the | |
113 // label colors for the IDR resource |id|. | |
114 GtkIconSet* GetIconSetForId(int id) const; | |
115 | |
116 // This method returns the colors webkit will use for the scrollbars. When no | |
117 // colors are specified by the GTK+ theme, this function averages of the | |
118 // thumb part and of the track colors. | |
119 void GetScrollbarColors(GdkColor* thumb_active_color, | |
120 GdkColor* thumb_inactive_color, | |
121 GdkColor* track_color); | |
122 | |
123 // Expose the inner label. Only used for testing. | |
124 GtkWidget* fake_label() { return fake_label_.get(); } | |
125 | |
126 // Returns colors that we pass to webkit to match the system theme. | |
127 SkColor get_focus_ring_color() const { return focus_ring_color_; } | |
128 SkColor get_thumb_active_color() const { return thumb_active_color_; } | |
129 SkColor get_thumb_inactive_color() const { return thumb_inactive_color_; } | |
130 SkColor get_track_color() const { return track_color_; } | |
131 SkColor get_active_selection_bg_color() const { | |
132 return active_selection_bg_color_; | |
133 } | |
134 SkColor get_active_selection_fg_color() const { | |
135 return active_selection_fg_color_; | |
136 } | |
137 SkColor get_inactive_selection_bg_color() const { | |
138 return inactive_selection_bg_color_; | |
139 } | |
140 SkColor get_inactive_selection_fg_color() const { | |
141 return inactive_selection_fg_color_; | |
142 } | |
143 SkColor get_location_bar_text_color() const { | |
144 return location_bar_text_color_; | |
145 } | |
146 SkColor get_location_bar_bg_color() const { | |
147 return location_bar_bg_color_; | |
148 } | |
149 | |
150 // These functions return an image that is not owned by the caller and should | |
151 // not be deleted. If |native| is true, get the GTK_STOCK version of the | |
152 // icon. | |
153 static gfx::Image GetFolderIcon(bool native); | |
154 static gfx::Image GetDefaultFavicon(bool native); | |
155 | |
156 // Whether we use the GTK theme by default in the current desktop | |
157 // environment. Returns true when we GTK defaults to on. | |
158 static bool DefaultUsesSystemTheme(); | |
159 | |
160 private: | |
161 typedef std::map<int, SkColor> ColorMap; | |
162 typedef std::map<int, color_utils::HSL> TintMap; | |
163 typedef std::map<int, gfx::Image*> ImageCache; | |
164 | |
165 // Load theme data from preferences, possibly picking colors from GTK. | |
166 virtual void LoadThemePrefs() OVERRIDE; | |
167 | |
168 // Let all the browser views know that themes have changed. | |
169 virtual void NotifyThemeChanged() OVERRIDE; | |
170 | |
171 // Additionally frees the CairoCachedSurfaces. | |
172 virtual void FreePlatformCaches() OVERRIDE; | |
173 | |
174 // Gets the name of the current icon theme and passes it to our low level XDG | |
175 // integration. | |
176 void SetXDGIconTheme(); | |
177 | |
178 // Extracts colors and tints from the GTK theme, both for the | |
179 // ThemeService interface and the colors we send to webkit. | |
180 void LoadGtkValues(); | |
181 | |
182 // Reads in explicit theme frame colors from the ChromeGtkFrame style class | |
183 // or generates them per our fallback algorithm. | |
184 GdkColor BuildFrameColors(GtkStyle* frame_style); | |
185 | |
186 // Sets the values that we send to webkit to safe defaults. | |
187 void LoadDefaultValues(); | |
188 | |
189 // Builds all of the tinted menus images needed for custom buttons. This is | |
190 // always called on style-set even if we aren't using the gtk-theme because | |
191 // the menus are always rendered with gtk colors. | |
192 void RebuildMenuIconSets(); | |
193 | |
194 // Sets the underlying theme colors/tints from a GTK color. | |
195 void SetThemeColorFromGtk(int id, const GdkColor* color); | |
196 void SetThemeTintFromGtk(int id, const GdkColor* color); | |
197 | |
198 // Creates and returns a frame color, either using |gtk_base| verbatim if | |
199 // non-NULL, or tinting |base| with |tint|. Also sets |color_id| and | |
200 // |tint_id| to the returned color. | |
201 GdkColor BuildAndSetFrameColor(const GdkColor* base, | |
202 const GdkColor* gtk_base, | |
203 const color_utils::HSL& tint, | |
204 int color_id, | |
205 int tint_id); | |
206 | |
207 // Frees all the created GtkIconSets we use for the chrome menu. | |
208 void FreeIconSets(); | |
209 | |
210 // Lazily generates each bitmap used in the gtk theme. | |
211 SkBitmap GenerateGtkThemeBitmap(int id) const; | |
212 | |
213 // Creates a GTK+ version of IDR_THEME_FRAME. Instead of tinting, this | |
214 // creates a theme configurable gradient ending with |color_id| at the | |
215 // bottom, and |gradient_name| at the top if that color is specified in the | |
216 // theme. | |
217 SkBitmap GenerateFrameImage(int color_id, | |
218 const char* gradient_name) const; | |
219 | |
220 // Takes the base frame image |base_id| and tints it with |tint_id|. | |
221 SkBitmap GenerateTabImage(int base_id) const; | |
222 | |
223 // Tints an icon based on tint. | |
224 SkBitmap GenerateTintedIcon(int base_id, | |
225 const color_utils::HSL& tint) const; | |
226 | |
227 // Returns the tint for buttons that contrasts with the normal window | |
228 // background color. | |
229 void GetNormalButtonTintHSL(color_utils::HSL* tint) const; | |
230 | |
231 // Returns a tint that's the color of the current normal text in an entry. | |
232 void GetNormalEntryForegroundHSL(color_utils::HSL* tint) const; | |
233 | |
234 // Returns a tint that's the color of the current highlighted text in an | |
235 // entry. | |
236 void GetSelectedEntryForegroundHSL(color_utils::HSL* tint) const; | |
237 | |
238 // Handles signal from GTK that our theme has been changed. | |
239 CHROMEGTK_CALLBACK_1(GtkThemeService, void, OnStyleSet, GtkStyle*); | |
240 | |
241 // A notification from various GObject destructors that we should | |
242 // remove it from our internal list. | |
243 CHROMEGTK_CALLBACK_0(GtkThemeService, void, OnDestroyChromeButton); | |
244 CHROMEGTK_CALLBACK_0(GtkThemeService, void, OnDestroyChromeLinkButton); | |
245 CHROMEGTK_CALLBACK_0(GtkThemeService, void, OnDestroyLabel); | |
246 | |
247 CHROMEGTK_CALLBACK_1(GtkThemeService, gboolean, OnSeparatorExpose, | |
248 GdkEventExpose*); | |
249 | |
250 void OnUsesSystemThemeChanged(); | |
251 | |
252 // Whether we should be using gtk rendering. | |
253 bool use_gtk_; | |
254 | |
255 // GtkWidgets that exist only so we can look at their properties (and take | |
256 // their colors). | |
257 GtkWidget* fake_window_; | |
258 GtkWidget* fake_frame_; | |
259 ui::OwnedWidgetGtk fake_label_; | |
260 ui::OwnedWidgetGtk fake_entry_; | |
261 ui::OwnedWidgetGtk fake_menu_item_; | |
262 | |
263 // A list of diferent types of widgets that we hold on to these to notify | |
264 // them of theme changes. We do not own these and listen for their | |
265 // destruction via OnDestory{ChromeButton,ChromeLinkButton,Label}. | |
266 std::vector<GtkWidget*> chrome_buttons_; | |
267 std::vector<GtkWidget*> link_buttons_; | |
268 std::map<GtkWidget*, GdkColor> labels_; | |
269 | |
270 // Tracks all the signals we have connected to on various widgets. | |
271 scoped_ptr<ui::GtkSignalRegistrar> signals_; | |
272 | |
273 // Tints and colors calculated by LoadGtkValues() that are given to the | |
274 // caller while |use_gtk_| is true. | |
275 ColorMap colors_; | |
276 TintMap tints_; | |
277 | |
278 // Colors used to tint certain icons. | |
279 color_utils::HSL button_tint_; | |
280 color_utils::HSL entry_tint_; | |
281 color_utils::HSL selected_entry_tint_; | |
282 | |
283 // Colors that we pass to WebKit. These are generated each time the theme | |
284 // changes. | |
285 SkColor focus_ring_color_; | |
286 SkColor thumb_active_color_; | |
287 SkColor thumb_inactive_color_; | |
288 SkColor track_color_; | |
289 SkColor active_selection_bg_color_; | |
290 SkColor active_selection_fg_color_; | |
291 SkColor inactive_selection_bg_color_; | |
292 SkColor inactive_selection_fg_color_; | |
293 SkColor location_bar_bg_color_; | |
294 SkColor location_bar_text_color_; | |
295 | |
296 // A GtkIconSet that has the tinted icons for the NORMAL and PRELIGHT states | |
297 // of the IDR_FULLSCREEN_MENU_BUTTON tinted to the respective menu item label | |
298 // colors. | |
299 GtkIconSet* fullscreen_icon_set_; | |
300 | |
301 // Image cache of lazily created images, created when requested by | |
302 // GetImageNamed(). | |
303 mutable ImageCache gtk_images_; | |
304 | |
305 PrefChangeRegistrar registrar_; | |
306 | |
307 // This is a dummy widget that only exists so we have something to pass to | |
308 // gtk_widget_render_icon(). | |
309 static GtkWidget* icon_widget_; | |
310 | |
311 // The default folder icon and default bookmark icon for the GTK theme. | |
312 // These are static because the system can only have one theme at a time. | |
313 // They are cached when they are requested the first time, and cleared when | |
314 // the system theme changes. | |
315 static base::LazyInstance<gfx::Image> default_folder_icon_; | |
316 static base::LazyInstance<gfx::Image> default_bookmark_icon_; | |
317 }; | |
318 | |
319 #endif // CHROME_BROWSER_UI_GTK_GTK_THEME_SERVICE_H_ | |
OLD | NEW |