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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_ | 5 #ifndef CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_ |
6 #define CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_ | 6 #define CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
10 #include "base/prefs/public/pref_change_registrar.h" | 10 #include "base/prefs/public/pref_change_registrar.h" |
11 #include "base/prefs/public/pref_observer.h" | 11 #include "base/prefs/public/pref_observer.h" |
12 #include "chrome/browser/instant/instant_controller.h" | 12 #include "chrome/browser/instant/instant_controller.h" |
13 #include "chrome/browser/instant/instant_unload_handler.h" | 13 #include "chrome/browser/instant/instant_unload_handler.h" |
14 #include "chrome/browser/ui/search/search_model_observer.h" | 14 #include "chrome/browser/ui/search/search_model_observer.h" |
| 15 #include "content/public/browser/notification_observer.h" |
| 16 #include "content/public/browser/notification_registrar.h" |
15 #include "webkit/glue/window_open_disposition.h" | 17 #include "webkit/glue/window_open_disposition.h" |
16 | 18 |
17 class Browser; | 19 class Browser; |
18 struct InstantSuggestion; | 20 struct InstantSuggestion; |
19 class PrefService; | 21 class PrefService; |
20 class Profile; | 22 class Profile; |
21 class TabContents; | 23 class TabContents; |
| 24 class ThemeService; |
22 | 25 |
23 namespace gfx { | 26 namespace gfx { |
24 class Rect; | 27 class Rect; |
25 } | 28 } |
26 | 29 |
27 namespace chrome { | 30 namespace chrome { |
28 | 31 |
29 class BrowserInstantController : public PrefObserver, | 32 class BrowserInstantController : public PrefObserver, |
| 33 public content::NotificationObserver, |
30 public search::SearchModelObserver { | 34 public search::SearchModelObserver { |
31 public: | 35 public: |
32 explicit BrowserInstantController(Browser* browser); | 36 explicit BrowserInstantController(Browser* browser); |
33 virtual ~BrowserInstantController(); | 37 virtual ~BrowserInstantController(); |
34 | 38 |
35 // Returns true if Instant is enabled in a visible, preview-showing mode. | 39 // Returns true if Instant is enabled in a visible, preview-showing mode. |
36 static bool IsInstantEnabled(Profile* profile); | 40 static bool IsInstantEnabled(Profile* profile); |
37 | 41 |
38 // Registers Instant related preferences. | 42 // Registers Instant related preferences. |
39 static void RegisterUserPrefs(PrefService* prefs); | 43 static void RegisterUserPrefs(PrefService* prefs); |
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61 // to the user clicking on it. | 65 // to the user clicking on it. |
62 void InstantPreviewFocused(); | 66 void InstantPreviewFocused(); |
63 | 67 |
64 // Invoked by |instant_| to get the currently active tab, over which the | 68 // Invoked by |instant_| to get the currently active tab, over which the |
65 // preview would be shown. | 69 // preview would be shown. |
66 TabContents* GetActiveTabContents() const; | 70 TabContents* GetActiveTabContents() const; |
67 | 71 |
68 // Invoked by |browser_| when the active tab changes. | 72 // Invoked by |browser_| when the active tab changes. |
69 void ActiveTabChanged(); | 73 void ActiveTabChanged(); |
70 | 74 |
| 75 // Invoked by |BrowserWindow| during layout to set content height which is |
| 76 // used as theme area height, i.e. the height of the area that the entire |
| 77 // theme background image should fill up. |
| 78 void SetContentHeight(int height); |
| 79 |
| 80 // Invoked by |instant_| to update theme information for preview. |
| 81 void UpdateThemeInfoForPreview(); |
| 82 |
71 private: | 83 private: |
72 // Overridden from PrefObserver: | 84 // Overridden from PrefObserver: |
73 virtual void OnPreferenceChanged(PrefServiceBase* service, | 85 virtual void OnPreferenceChanged(PrefServiceBase* service, |
74 const std::string& pref_name) OVERRIDE; | 86 const std::string& pref_name) OVERRIDE; |
75 | 87 |
76 // Overridden from search::SearchModelObserver: | 88 // Overridden from search::SearchModelObserver: |
77 virtual void ModeChanged(const search::Mode& old_mode, | 89 virtual void ModeChanged(const search::Mode& old_mode, |
78 const search::Mode& new_mode) OVERRIDE; | 90 const search::Mode& new_mode) OVERRIDE; |
79 | 91 |
| 92 // content::NotificationObserver implementation. |
| 93 virtual void Observe(int type, |
| 94 const content::NotificationSource& source, |
| 95 const content::NotificationDetails& details) OVERRIDE; |
| 96 |
| 97 // Helper for handling theme change. |
| 98 void OnThemeChanged(ThemeService* theme_service); |
| 99 |
| 100 // Helper for handling theme area height change. |
| 101 void OnThemeAreaHeightChanged(int height); |
| 102 |
80 Browser* const browser_; | 103 Browser* const browser_; |
81 | 104 |
82 InstantController instant_; | 105 InstantController instant_; |
83 InstantUnloadHandler instant_unload_handler_; | 106 InstantUnloadHandler instant_unload_handler_; |
84 | 107 |
| 108 // Theme-related data for NTP preview to adopt themes. |
| 109 bool initialized_theme_info_; // True if theme_info_ has been initialized. |
| 110 ThemeBackgroundInfo theme_info_; |
| 111 int theme_area_height_; |
| 112 |
85 PrefChangeRegistrar profile_pref_registrar_; | 113 PrefChangeRegistrar profile_pref_registrar_; |
86 | 114 |
| 115 content::NotificationRegistrar registrar_; |
| 116 |
87 DISALLOW_COPY_AND_ASSIGN(BrowserInstantController); | 117 DISALLOW_COPY_AND_ASSIGN(BrowserInstantController); |
88 }; | 118 }; |
89 | 119 |
90 } // namespace chrome | 120 } // namespace chrome |
91 | 121 |
92 #endif // CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_ | 122 #endif // CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_ |
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