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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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_ZOOM_ZOOM_CONTROLLER_H_ | 5 #ifndef CHROME_BROWSER_UI_ZOOM_ZOOM_CONTROLLER_H_ |
6 #define CHROME_BROWSER_UI_ZOOM_ZOOM_CONTROLLER_H_ | 6 #define CHROME_BROWSER_UI_ZOOM_ZOOM_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/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
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63 double old_zoom_level; | 63 double old_zoom_level; |
64 double new_zoom_level; | 64 double new_zoom_level; |
65 ZoomController::ZoomMode zoom_mode; | 65 ZoomController::ZoomMode zoom_mode; |
66 bool can_show_bubble; | 66 bool can_show_bubble; |
67 }; | 67 }; |
68 | 68 |
69 virtual ~ZoomController(); | 69 virtual ~ZoomController(); |
70 | 70 |
71 ZoomMode zoom_mode() const { return zoom_mode_; } | 71 ZoomMode zoom_mode() const { return zoom_mode_; } |
72 | 72 |
| 73 // Convenience method to get default zoom level. Implemented here for |
| 74 // inlining. |
| 75 double GetDefaultZoomLevel() const { |
| 76 return content::HostZoomMap::GetForWebContents(web_contents()) |
| 77 ->GetDefaultZoomLevel(); |
| 78 } |
| 79 |
73 // Convenience method to quickly check if the tab's at default zoom. | 80 // Convenience method to quickly check if the tab's at default zoom. |
74 bool IsAtDefaultZoom() const; | 81 bool IsAtDefaultZoom() const; |
75 | 82 |
76 // Returns which image should be loaded for the current zoom level. | 83 // Returns which image should be loaded for the current zoom level. |
77 int GetResourceForZoomLevel() const; | 84 int GetResourceForZoomLevel() const; |
78 | 85 |
79 const extensions::Extension* last_extension() const { | 86 const extensions::Extension* last_extension() const { |
80 return last_extension_.get(); | 87 return last_extension_.get(); |
81 } | 88 } |
82 | 89 |
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135 | 142 |
136 // True if changes to zoom level can trigger the zoom notification bubble. | 143 // True if changes to zoom level can trigger the zoom notification bubble. |
137 bool can_show_bubble_; | 144 bool can_show_bubble_; |
138 | 145 |
139 // The current zoom mode. | 146 // The current zoom mode. |
140 ZoomMode zoom_mode_; | 147 ZoomMode zoom_mode_; |
141 | 148 |
142 // Current zoom level. | 149 // Current zoom level. |
143 double zoom_level_; | 150 double zoom_level_; |
144 | 151 |
145 // Used to access the default zoom level preference. | |
146 DoublePrefMember default_zoom_level_; | |
147 | |
148 scoped_ptr<ZoomChangedEventData> event_data_; | 152 scoped_ptr<ZoomChangedEventData> event_data_; |
149 | 153 |
150 // Keeps track of the extension (if any) that initiated the last zoom change | 154 // Keeps track of the extension (if any) that initiated the last zoom change |
151 // that took effect. | 155 // that took effect. |
152 scoped_refptr<const extensions::Extension> last_extension_; | 156 scoped_refptr<const extensions::Extension> last_extension_; |
153 | 157 |
154 // Observer receiving notifications on state changes. | 158 // Observer receiving notifications on state changes. |
155 ObserverList<ZoomObserver> observers_; | 159 ObserverList<ZoomObserver> observers_; |
156 | 160 |
157 content::BrowserContext* browser_context_; | 161 content::BrowserContext* browser_context_; |
158 | 162 |
159 scoped_ptr<content::HostZoomMap::Subscription> zoom_subscription_; | 163 scoped_ptr<content::HostZoomMap::Subscription> zoom_subscription_; |
160 | 164 |
161 DISALLOW_COPY_AND_ASSIGN(ZoomController); | 165 DISALLOW_COPY_AND_ASSIGN(ZoomController); |
162 }; | 166 }; |
163 | 167 |
164 #endif // CHROME_BROWSER_UI_ZOOM_ZOOM_CONTROLLER_H_ | 168 #endif // CHROME_BROWSER_UI_ZOOM_ZOOM_CONTROLLER_H_ |
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