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_EXTENSIONS_API_TABS_WINDOWS_EVENT_ROUTER_H_ 6 #define CHROME_BROWSER_EXTENSIONS_API_TABS_WINDOWS_EVENT_ROUTER_H_ 7 8 #include <string> 9 10 #include "base/basictypes.h" 11 #include "base/memory/scoped_ptr.h" 12 #include "chrome/browser/extensions/window_controller_list_observer.h" 13 #include "content/public/browser/notification_observer.h" 14 #include "content/public/browser/notification_registrar.h" 15 #if defined(TOOLKIT_VIEWS) 16 #include "ui/views/focus/widget_focus_manager.h" 17 #elif defined(TOOLKIT_GTK) 18 #include "ui/base/x/active_window_watcher_x_observer.h" 19 #endif 20 21 class Profile; 22 23 namespace base { 24 class ListValue; 25 } 26 27 namespace extensions { 28 29 // The WindowsEventRouter sends chrome.windows.* events to listeners 30 // inside extension process renderers. The router listens to *all* events, 31 // but will only route eventes within a profile to extension processes in the 32 // same profile. 33 class WindowsEventRouter : public WindowControllerListObserver, 34 #if defined(TOOLKIT_VIEWS) 35 public views::WidgetFocusChangeListener, 36 #elif defined(TOOLKIT_GTK) 37 public ui::ActiveWindowWatcherXObserver, 38 #endif 39 public content::NotificationObserver { 40 public: 41 explicit WindowsEventRouter(Profile* profile); 42 virtual ~WindowsEventRouter(); 43 44 // WindowControllerListObserver methods: 45 virtual void OnWindowControllerAdded( 46 WindowController* window_controller) OVERRIDE; 47 virtual void OnWindowControllerRemoved( 48 WindowController* window) OVERRIDE; 49 50 #if defined(TOOLKIT_VIEWS) 51 virtual void OnNativeFocusChange(gfx::NativeView focused_before, 52 gfx::NativeView focused_now) OVERRIDE; 53 #elif defined(TOOLKIT_GTK) 54 virtual void ActiveWindowChanged(GdkWindow* active_window) OVERRIDE; 55 #endif 56 57 // content::NotificationObserver. 58 virtual void Observe(int type, 59 const content::NotificationSource& source, 60 const content::NotificationDetails& details) OVERRIDE; 61 62 // |window_controller| is NULL to indicate a focused window has lost focus. 63 void OnActiveWindowChanged(WindowController* window_controller); 64 65 private: 66 void DispatchEvent(const std::string& event_name, 67 Profile* profile, 68 scoped_ptr<base::ListValue> args); 69 70 content::NotificationRegistrar registrar_; 71 72 // The main profile that owns this event router. 73 Profile* profile_; 74 75 // The profile the currently focused window belongs to; either the main or 76 // incognito profile or NULL (none of the above). We remember this in order 77 // to correctly handle focus changes between non-OTR and OTR windows. 78 Profile* focused_profile_; 79 80 // The currently focused window. We keep this so as to avoid sending multiple 81 // windows.onFocusChanged events with the same windowId. 82 int focused_window_id_; 83 84 DISALLOW_COPY_AND_ASSIGN(WindowsEventRouter); 85 }; 86 87 } // namespace extensions 88 89 #endif // CHROME_BROWSER_EXTENSIONS_API_TABS_WINDOWS_EVENT_ROUTER_H_ 90