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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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_EXTENSIONS_API_TABS_TABS_EVENT_ROUTER_H_ | 5 #ifndef CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_EVENT_ROUTER_H_ |
6 #define CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_EVENT_ROUTER_H_ | 6 #define CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_EVENT_ROUTER_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 | 10 |
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77 const ui_zoom::ZoomController::ZoomChangedEventData& data) override; | 77 const ui_zoom::ZoomController::ZoomChangedEventData& data) override; |
78 | 78 |
79 private: | 79 private: |
80 // "Synthetic" event. Called from TabInsertedAt if new tab is detected. | 80 // "Synthetic" event. Called from TabInsertedAt if new tab is detected. |
81 void TabCreatedAt(content::WebContents* contents, int index, bool active); | 81 void TabCreatedAt(content::WebContents* contents, int index, bool active); |
82 | 82 |
83 // Internal processing of tab updated events. Is called by both TabChangedAt | 83 // Internal processing of tab updated events. Is called by both TabChangedAt |
84 // and Observe/NAV_ENTRY_COMMITTED. | 84 // and Observe/NAV_ENTRY_COMMITTED. |
85 void TabUpdated(content::WebContents* contents, bool did_navigate); | 85 void TabUpdated(content::WebContents* contents, bool did_navigate); |
86 | 86 |
87 // Internal processing of tab audible and muted state change events. | |
88 // Called by TabUpdated. | |
89 void TabAudibleStateChanged(content::WebContents* contents, | |
90 bool audible); | |
91 void TabMutedStateChanged(content::WebContents* contents, | |
92 bool muted, | |
93 const std::string& cause); | |
94 | |
87 // Triggers a tab updated event if the favicon URL changes. | 95 // Triggers a tab updated event if the favicon URL changes. |
88 void FaviconUrlUpdated(content::WebContents* contents); | 96 void FaviconUrlUpdated(content::WebContents* contents); |
89 | 97 |
90 // The DispatchEvent methods forward events to the |profile|'s event router. | 98 // The DispatchEvent methods forward events to the |profile|'s event router. |
91 // The TabsEventRouter listens to events for all profiles, | 99 // The TabsEventRouter listens to events for all profiles, |
92 // so we avoid duplication by dropping events destined for other profiles. | 100 // so we avoid duplication by dropping events destined for other profiles. |
93 void DispatchEvent(Profile* profile, | 101 void DispatchEvent(Profile* profile, |
94 const std::string& event_name, | 102 const std::string& event_name, |
95 scoped_ptr<base::ListValue> args, | 103 scoped_ptr<base::ListValue> args, |
96 EventRouter::UserGestureState user_gesture); | 104 EventRouter::UserGestureState user_gesture); |
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122 // Removes notifications added in RegisterForTabNotifications. | 130 // Removes notifications added in RegisterForTabNotifications. |
123 void UnregisterForTabNotifications(content::WebContents* contents); | 131 void UnregisterForTabNotifications(content::WebContents* contents); |
124 | 132 |
125 content::NotificationRegistrar registrar_; | 133 content::NotificationRegistrar registrar_; |
126 | 134 |
127 // Maintain some information about known tabs, so we can: | 135 // Maintain some information about known tabs, so we can: |
128 // | 136 // |
129 // - distinguish between tab creation and tab insertion | 137 // - distinguish between tab creation and tab insertion |
130 // - not send tab-detached after tab-removed | 138 // - not send tab-detached after tab-removed |
131 // - reduce the "noise" of TabChangedAt() when sending events to extensions | 139 // - reduce the "noise" of TabChangedAt() when sending events to extensions |
140 // - remember last muted and audible states to know if there was a change | |
132 class TabEntry { | 141 class TabEntry { |
133 public: | 142 public: |
134 // Create a new tab entry whose initial state is TAB_COMPLETE. This | 143 // Create a new tab entry whose initial state is TAB_COMPLETE. This |
135 // constructor is required because TabEntry objects placed inside an | 144 // constructor is required because TabEntry objects placed inside an |
136 // std::map<> by value. | 145 // std::map<> by value. |
137 TabEntry(); | 146 TabEntry(); |
138 | 147 |
139 // Update the load state of the tab based on its WebContents. Returns true | 148 // Update the load state of the tab based on its WebContents. Returns true |
140 // if the state changed, false otherwise. Whether the state has changed or | 149 // if the state changed, false otherwise. Whether the state has changed or |
141 // not is used to determine if events needs to be sent to extensions during | 150 // not is used to determine if events needs to be sent to extensions during |
142 // processing of TabChangedAt(). This method will "hold" a state-change | 151 // processing of TabChangedAt(). This method will "hold" a state-change |
143 // to "loading", until the DidNavigate() method which should always follow | 152 // to "loading", until the DidNavigate() method which should always follow |
144 // it. Returns NULL if no updates should be sent. | 153 // it. Returns NULL if no updates should be sent. |
145 base::DictionaryValue* UpdateLoadState( | 154 base::DictionaryValue* UpdateLoadState( |
146 const content::WebContents* contents); | 155 const content::WebContents* contents); |
147 | 156 |
148 // Indicates that a tab load has resulted in a navigation and the | 157 // Indicates that a tab load has resulted in a navigation and the |
149 // destination url is available for inspection. Returns NULL if no updates | 158 // destination url is available for inspection. Returns NULL if no updates |
150 // should be sent. | 159 // should be sent. |
151 base::DictionaryValue* DidNavigate(const content::WebContents* contents); | 160 base::DictionaryValue* DidNavigate(const content::WebContents* contents); |
152 | 161 |
162 // Keep track of previous audible and muted states and allow toggling them | |
163 bool AudibleChanged(bool val) const; | |
164 bool MutedChanged(bool val) const; | |
165 void ToggleAudible(); | |
166 void ToggleMuted(); | |
167 | |
153 private: | 168 private: |
154 // Whether we are waiting to fire the 'complete' status change. This will | 169 // Whether we are waiting to fire the 'complete' status change. This will |
155 // occur the first time the WebContents stops loading after the | 170 // occur the first time the WebContents stops loading after the |
156 // NAV_ENTRY_COMMITTED was fired. The tab may go back into and out of the | 171 // NAV_ENTRY_COMMITTED was fired. The tab may go back into and out of the |
157 // loading state subsequently, but we will ignore those changes. | 172 // loading state subsequently, but we will ignore those changes. |
158 bool complete_waiting_on_load_; | 173 bool complete_waiting_on_load_; |
159 | 174 |
175 // Previous audible and muted states | |
176 bool wasAudible_; | |
miu
2015/03/10 18:51:39
style: No camel case for variables in Chromium C++
Jared Sohn
2015/03/16 02:34:29
Done.
| |
177 bool wasMuted_; | |
178 | |
160 GURL url_; | 179 GURL url_; |
161 }; | 180 }; |
162 | 181 |
163 // Gets the TabEntry for the given |contents|. Returns TabEntry* if | 182 // Gets the TabEntry for the given |contents|. Returns TabEntry* if |
164 // found, NULL if not. | 183 // found, NULL if not. |
165 TabEntry* GetTabEntry(content::WebContents* contents); | 184 TabEntry* GetTabEntry(content::WebContents* contents); |
166 | 185 |
167 std::map<int, TabEntry> tab_entries_; | 186 std::map<int, TabEntry> tab_entries_; |
168 | 187 |
169 // The main profile that owns this event router. | 188 // The main profile that owns this event router. |
170 Profile* profile_; | 189 Profile* profile_; |
171 | 190 |
172 DISALLOW_COPY_AND_ASSIGN(TabsEventRouter); | 191 DISALLOW_COPY_AND_ASSIGN(TabsEventRouter); |
173 }; | 192 }; |
174 | 193 |
175 } // namespace extensions | 194 } // namespace extensions |
176 | 195 |
177 #endif // CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_EVENT_ROUTER_H_ | 196 #endif // CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_EVENT_ROUTER_H_ |
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