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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 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_NETWORK_DROPDOWN_H_
      6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_NETWORK_DROPDOWN_H_
      7 
      8 #include "ash/system/chromeos/network/network_icon_animation_observer.h"
      9 #include "base/basictypes.h"
     10 #include "base/timer/timer.h"
     11 #include "chrome/browser/chromeos/status/network_menu.h"
     12 #include "chromeos/network/network_state_handler_observer.h"
     13 #include "ui/gfx/native_widget_types.h"
     14 
     15 namespace content {
     16 class WebUI;
     17 }
     18 
     19 namespace chromeos {
     20 
     21 class NetworkMenuWebUI;
     22 class NetworkState;
     23 
     24 // Class which implements network dropdown menu using WebUI.
     25 class NetworkDropdown : public NetworkMenu::Delegate,
     26                         public NetworkStateHandlerObserver,
     27                         public ash::network_icon::AnimationObserver {
     28  public:
     29   class Actor {
     30    public:
     31     virtual ~Actor() {}
     32     virtual void OnConnectToNetworkRequested(
     33         const std::string& service_path) = 0;
     34   };
     35 
     36   NetworkDropdown(Actor* actor, content::WebUI* web_ui, bool oobe);
     37   virtual ~NetworkDropdown();
     38 
     39   // This method should be called, when item with the given id is chosen.
     40   void OnItemChosen(int id);
     41 
     42   // NetworkMenu::Delegate
     43   virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE;
     44   virtual void OpenButtonOptions() OVERRIDE;
     45   virtual bool ShouldOpenButtonOptions() const OVERRIDE;
     46   virtual void OnConnectToNetworkRequested(
     47       const std::string& service_path) OVERRIDE;
     48 
     49   // NetworkStateHandlerObserver
     50   virtual void DefaultNetworkChanged(const NetworkState* network) OVERRIDE;
     51   virtual void NetworkConnectionStateChanged(
     52       const NetworkState* network) OVERRIDE;
     53   virtual void NetworkListChanged() OVERRIDE;
     54 
     55   // network_icon::AnimationObserver
     56   virtual void NetworkIconChanged() OVERRIDE;
     57 
     58   // Refreshes control state. Usually there's no need to do it manually
     59   // as control refreshes itself on network state change.
     60   // Should be called on language change.
     61   void Refresh();
     62 
     63  private:
     64   void SetNetworkIconAndText();
     65 
     66   // Request a network scan and refreshes control state. Should be called
     67   // by |network_scan_timer_| only.
     68   void RequestNetworkScan();
     69 
     70   // The Network menu.
     71   scoped_ptr<NetworkMenuWebUI> network_menu_;
     72 
     73   Actor* actor_;
     74 
     75   content::WebUI* web_ui_;
     76 
     77   // Is the dropdown shown on one of the OOBE screens.
     78   bool oobe_;
     79 
     80   // Timer used to periodically force network scan.
     81   base::RepeatingTimer<NetworkDropdown> network_scan_timer_;
     82 
     83   DISALLOW_COPY_AND_ASSIGN(NetworkDropdown);
     84 };
     85 
     86 }  // namespace chromeos
     87 
     88 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_NETWORK_DROPDOWN_H_
     89