chrome/browser/extensions/api/system_indicator/system_indicator_manager.h

   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_SYSTEM_INDICATOR_SYSTEM_INDICATOR_MANAGER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_MANAGER_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/memory/linked_ptr.h"
  12 #include "base/threading/thread_checker.h"
  13 #include "chrome/browser/extensions/extension_action_icon_factory.h"
  14 #include "components/browser_context_keyed_service/browser_context_keyed_service.h"
  15 #include "content/public/browser/notification_observer.h"
  16 #include "content/public/browser/notification_registrar.h"
  17 #include "extensions/browser/event_router.h"
  18
  19 class ExtensionAction;
  20 class Profile;
  21 class StatusTray;
  22
  23 FORWARD_DECLARE_TEST(SystemIndicatorApiTest, SystemIndicator);
  24
  25 namespace extensions {
  26
  27 class ExtensionIndicatorIcon;
  28
  29 // Keeps track of all the systemIndicator icons created for a given Profile
  30 // that are currently visible in the UI.  Use SystemIndicatorManagerFactory to
  31 // create a SystemIndicatorManager object.
  32 class SystemIndicatorManager : public content::NotificationObserver,
  33                                public BrowserContextKeyedService {
  34  public:
  35   SystemIndicatorManager(Profile* profile, StatusTray* status_tray);
  36   virtual ~SystemIndicatorManager();
  37
  38   // BrowserContextKeyedService implementation.
  39   virtual void Shutdown() OVERRIDE;
  40
  41   // content::NotificationDelegate implementation.
  42   virtual void Observe(int type,
  43                        const content::NotificationSource& source,
  44                        const content::NotificationDetails& details) OVERRIDE;
  45
  46  private:
  47   FRIEND_TEST_ALL_PREFIXES(::SystemIndicatorApiTest, SystemIndicator);
  48
  49   // Determines whether the indicator should be hidden or shown and calls the
  50   // appropriate function.
  51   void OnSystemIndicatorChanged(const ExtensionAction* extension_action);
  52
  53   // Causes a call to OnStatusIconClicked for the specified extension_id.
  54   // Returns false if no ExtensionIndicatorIcon is found for the extension.
  55   bool SendClickEventToExtensionForTest(const std::string extension_id);
  56
  57   // Causes an indicator to be shown for the given extension_action.  Creates
  58   // the indicator if necessary.
  59   void CreateOrUpdateIndicator(
  60       const Extension* extension,
  61       const ExtensionAction* extension_action);
  62
  63   // Causes the indicator for the given extension to be hidden.
  64   void RemoveIndicator(const std::string &extension_id);
  65
  66   typedef std::map<const std::string, linked_ptr<ExtensionIndicatorIcon> >
  67       SystemIndicatorMap;
  68
  69   Profile* profile_;
  70   StatusTray* status_tray_;
  71   SystemIndicatorMap system_indicators_;
  72   content::NotificationRegistrar registrar_;
  73   base::ThreadChecker thread_checker_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(SystemIndicatorManager);
  76 };
  77
  78 }  // namespace extensions
  79
  80 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INDICATOR_SYSTEM_INDICATOR_MANAGER_H_