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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 COMPONENTS_ZOOM_ZOOM_CONTROLLER_H_ | 5 #ifndef COMPONENTS_ZOOM_ZOOM_CONTROLLER_H_ |
6 #define COMPONENTS_ZOOM_ZOOM_CONTROLLER_H_ | 6 #define COMPONENTS_ZOOM_ZOOM_CONTROLLER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
| 11 #include "base/gtest_prod_util.h" |
11 #include "base/macros.h" | 12 #include "base/macros.h" |
12 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
13 #include "base/observer_list.h" | 14 #include "base/observer_list.h" |
14 #include "components/prefs/pref_member.h" | 15 #include "components/prefs/pref_member.h" |
| 16 #include "components/zoom/zoom_prefs_delegate.h" |
15 #include "content/public/browser/host_zoom_map.h" | 17 #include "content/public/browser/host_zoom_map.h" |
16 #include "content/public/browser/web_contents_observer.h" | 18 #include "content/public/browser/web_contents_observer.h" |
17 #include "content/public/browser/web_contents_user_data.h" | 19 #include "content/public/browser/web_contents_user_data.h" |
| 20 #include "content/public/browser/zoom_level_delegate.h" |
18 | 21 |
19 class ZoomControllerTest; | 22 class ZoomControllerTest; |
| 23 FORWARD_DECLARE_TEST(ZoomControllerTest, OnDefaultZoomScopeChanged); |
| 24 FORWARD_DECLARE_TEST(ZoomControllerPerTabTest, OnDefaultZoomScopeChanged); |
20 | 25 |
21 namespace content { | 26 namespace content { |
22 class WebContents; | 27 class WebContents; |
23 } | 28 } |
24 | 29 |
25 namespace zoom { | 30 namespace zoom { |
26 class ZoomObserver; | 31 class ZoomObserver; |
27 | 32 |
28 class ZoomRequestClient : public base::RefCounted<ZoomRequestClient> { | 33 class ZoomRequestClient : public base::RefCounted<ZoomRequestClient> { |
29 public: | 34 public: |
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141 double zoom_level, | 146 double zoom_level, |
142 const scoped_refptr<const ZoomRequestClient>& client); | 147 const scoped_refptr<const ZoomRequestClient>& client); |
143 | 148 |
144 // Sets the zoom mode, which defines zoom behavior (see enum ZoomMode). | 149 // Sets the zoom mode, which defines zoom behavior (see enum ZoomMode). |
145 void SetZoomMode(ZoomMode zoom_mode); | 150 void SetZoomMode(ZoomMode zoom_mode); |
146 | 151 |
147 // Set and query whether or not the page scale factor is one. | 152 // Set and query whether or not the page scale factor is one. |
148 void SetPageScaleFactorIsOneForTesting(bool is_one); | 153 void SetPageScaleFactorIsOneForTesting(bool is_one); |
149 bool PageScaleFactorIsOne() const; | 154 bool PageScaleFactorIsOne() const; |
150 | 155 |
| 156 // Called by TabStripModel to notify us when it replaces a tab's WebContents |
| 157 // with another. |
| 158 // Virtual for testing. |
| 159 virtual void WebContentsReplaced(content::WebContents* new_web_contents); |
| 160 |
151 // content::WebContentsObserver overrides: | 161 // content::WebContentsObserver overrides: |
152 void DidFinishNavigation( | 162 void DidFinishNavigation( |
153 content::NavigationHandle* navigation_handle) override; | 163 content::NavigationHandle* navigation_handle) override; |
154 void WebContentsDestroyed() override; | 164 void WebContentsDestroyed() override; |
155 void RenderFrameHostChanged(content::RenderFrameHost* old_host, | 165 void RenderFrameHostChanged(content::RenderFrameHost* old_host, |
156 content::RenderFrameHost* new_host) override; | 166 content::RenderFrameHost* new_host) override; |
| 167 void DidCloneToNewWebContents( |
| 168 content::WebContents* old_web_contents, |
| 169 content::WebContents* new_web_contents) override; |
157 | 170 |
158 protected: | 171 protected: |
159 // Protected for testing. | 172 // Protected for testing. |
160 explicit ZoomController(content::WebContents* web_contents); | 173 explicit ZoomController(content::WebContents* web_contents); |
161 | 174 |
162 private: | 175 private: |
163 friend class content::WebContentsUserData<ZoomController>; | 176 friend class content::WebContentsUserData<ZoomController>; |
164 friend class ::ZoomControllerTest; | 177 friend class ::ZoomControllerTest; |
| 178 FRIEND_TEST_ALL_PREFIXES(::ZoomControllerTest, OnDefaultZoomScopeChanged); |
| 179 FRIEND_TEST_ALL_PREFIXES(::ZoomControllerPerTabTest, |
| 180 OnDefaultZoomScopeChanged); |
165 | 181 |
166 void ResetZoomModeOnNavigationIfNeeded(const GURL& url); | 182 void ResetZoomModeOnNavigationIfNeeded(const GURL& url); |
| 183 void UpdateZoomModeOnScopeChangeIfNeeded(); |
| 184 void PreserveTemporaryZoomLevel(const content::HostZoomMap* old_zoom_map, |
| 185 content::HostZoomMap* new_zoom_map, |
| 186 content::RenderFrameHost* old_host, |
| 187 content::RenderFrameHost* new_host) const; |
| 188 void PreserveTemporaryZoomLevel(content::WebContents* old_web_contents, |
| 189 content::WebContents* new_web_contents) const; |
167 void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change); | 190 void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change); |
| 191 void OnDefaultZoomScopeChanged(); |
168 | 192 |
169 // Updates the zoom icon and zoom percentage based on current values and | 193 // Updates the zoom icon and zoom percentage based on current values and |
170 // notifies the observer if changes have occurred. |host| may be empty, | 194 // notifies the observer if changes have occurred. |host| may be empty, |
171 // meaning the change should apply to ~all sites. If it is not empty, the | 195 // meaning the change should apply to ~all sites. If it is not empty, the |
172 // change only affects sites with the given host. | 196 // change only affects sites with the given host. |
173 void UpdateState(const std::string& host); | 197 void UpdateState(const std::string& host); |
174 | 198 |
175 // True if changes to zoom level can trigger the zoom notification bubble. | 199 // True if changes to zoom level can trigger the zoom notification bubble. |
176 bool can_show_bubble_; | 200 bool can_show_bubble_; |
177 | 201 |
178 // The current zoom mode. | 202 // The current zoom mode. |
179 ZoomMode zoom_mode_; | 203 ZoomMode zoom_mode_; |
180 | 204 |
| 205 // Whether zoom changes are by default scoped to a page's origin. |
| 206 // If false, they are scoped to the tab. |
| 207 bool default_scope_is_per_origin_; |
| 208 |
181 // Current zoom level. | 209 // Current zoom level. |
182 double zoom_level_; | 210 double zoom_level_; |
183 | 211 |
184 std::unique_ptr<ZoomChangedEventData> event_data_; | 212 std::unique_ptr<ZoomChangedEventData> event_data_; |
185 | 213 |
186 // Keeps track of the extension (if any) that initiated the last zoom change | 214 // Keeps track of the extension (if any) that initiated the last zoom change |
187 // that took effect. | 215 // that took effect. |
188 scoped_refptr<const ZoomRequestClient> last_client_; | 216 scoped_refptr<const ZoomRequestClient> last_client_; |
189 | 217 |
190 // Observer receiving notifications on state changes. | 218 // Observer receiving notifications on state changes. |
191 base::ObserverList<ZoomObserver> observers_; | 219 base::ObserverList<ZoomObserver> observers_; |
192 | 220 |
193 content::BrowserContext* browser_context_; | 221 content::BrowserContext* browser_context_; |
194 // Keep track of the HostZoomMap we're currently subscribed to. | 222 // Keep track of the HostZoomMap we're currently subscribed to. |
195 content::HostZoomMap* host_zoom_map_; | 223 content::HostZoomMap* host_zoom_map_; |
196 | 224 |
197 std::unique_ptr<content::HostZoomMap::Subscription> zoom_subscription_; | 225 std::unique_ptr<content::HostZoomMap::Subscription> zoom_subscription_; |
| 226 std::unique_ptr<ZoomPrefsDelegate::DefaultZoomScopeSubscription> |
| 227 default_zoom_scope_subscription_; |
198 | 228 |
199 DISALLOW_COPY_AND_ASSIGN(ZoomController); | 229 DISALLOW_COPY_AND_ASSIGN(ZoomController); |
200 }; | 230 }; |
201 | 231 |
202 } // namespace zoom | 232 } // namespace zoom |
203 | 233 |
204 #endif // COMPONENTS_ZOOM_ZOOM_CONTROLLER_H_ | 234 #endif // COMPONENTS_ZOOM_ZOOM_CONTROLLER_H_ |
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