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      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 #include "chrome/browser/extensions/api/tabs/tabs_windows_api.h"
      6 
      7 #include "base/lazy_instance.h"
      8 #include "chrome/browser/extensions/api/tabs/tabs_event_router.h"
      9 #include "chrome/browser/extensions/api/tabs/windows_event_router.h"
     10 #include "chrome/browser/profiles/profile.h"
     11 #include "chrome/common/extensions/api/tabs.h"
     12 #include "chrome/common/extensions/api/windows.h"
     13 #include "extensions/browser/event_router.h"
     14 #include "extensions/browser/extension_system.h"
     15 
     16 namespace extensions {
     17 
     18 TabsWindowsAPI::TabsWindowsAPI(content::BrowserContext* context)
     19     : browser_context_(context) {
     20   EventRouter* event_router = EventRouter::Get(browser_context_);
     21 
     22   // Tabs API Events.
     23   event_router->RegisterObserver(this, api::tabs::OnCreated::kEventName);
     24   event_router->RegisterObserver(this, api::tabs::OnUpdated::kEventName);
     25   event_router->RegisterObserver(this, api::tabs::OnMoved::kEventName);
     26   event_router->RegisterObserver(this,
     27                                  api::tabs::OnSelectionChanged::kEventName);
     28   event_router->RegisterObserver(this, api::tabs::OnActiveChanged::kEventName);
     29   event_router->RegisterObserver(this, api::tabs::OnActivated::kEventName);
     30   event_router->RegisterObserver(this,
     31                                  api::tabs::OnHighlightChanged::kEventName);
     32   event_router->RegisterObserver(this, api::tabs::OnHighlighted::kEventName);
     33   event_router->RegisterObserver(this, api::tabs::OnDetached::kEventName);
     34   event_router->RegisterObserver(this, api::tabs::OnAttached::kEventName);
     35   event_router->RegisterObserver(this, api::tabs::OnRemoved::kEventName);
     36   event_router->RegisterObserver(this, api::tabs::OnReplaced::kEventName);
     37   event_router->RegisterObserver(this, api::tabs::OnZoomChange::kEventName);
     38 
     39   // Windows API Events.
     40   event_router->RegisterObserver(this, api::windows::OnCreated::kEventName);
     41   event_router->RegisterObserver(this, api::windows::OnRemoved::kEventName);
     42   event_router->RegisterObserver(this,
     43                                  api::windows::OnFocusChanged::kEventName);
     44 }
     45 
     46 TabsWindowsAPI::~TabsWindowsAPI() {
     47 }
     48 
     49 // static
     50 TabsWindowsAPI* TabsWindowsAPI::Get(content::BrowserContext* context) {
     51   return BrowserContextKeyedAPIFactory<TabsWindowsAPI>::Get(context);
     52 }
     53 
     54 TabsEventRouter* TabsWindowsAPI::tabs_event_router() {
     55   if (!tabs_event_router_.get())
     56     tabs_event_router_.reset(
     57         new TabsEventRouter(Profile::FromBrowserContext(browser_context_)));
     58   return tabs_event_router_.get();
     59 }
     60 
     61 WindowsEventRouter* TabsWindowsAPI::windows_event_router() {
     62   if (!windows_event_router_)
     63     windows_event_router_.reset(
     64         new WindowsEventRouter(Profile::FromBrowserContext(browser_context_)));
     65   return windows_event_router_.get();
     66 }
     67 
     68 void TabsWindowsAPI::Shutdown() {
     69   EventRouter::Get(browser_context_)->UnregisterObserver(this);
     70 }
     71 
     72 static base::LazyInstance<BrowserContextKeyedAPIFactory<TabsWindowsAPI> >
     73     g_factory = LAZY_INSTANCE_INITIALIZER;
     74 
     75 BrowserContextKeyedAPIFactory<TabsWindowsAPI>*
     76 TabsWindowsAPI::GetFactoryInstance() {
     77   return g_factory.Pointer();
     78 }
     79 
     80 void TabsWindowsAPI::OnListenerAdded(const EventListenerInfo& details) {
     81   // Initialize the event routers.
     82   tabs_event_router();
     83   windows_event_router();
     84   EventRouter::Get(browser_context_)->UnregisterObserver(this);
     85 }
     86 
     87 }  // namespace extensions
     88