chrome/browser/chromeos/dbus/screen_lock_service_provider.h

   1 // Copyright 2014 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_CHROMEOS_DBUS_SCREEN_LOCK_SERVICE_PROVIDER_H_
   6 #define CHROME_BROWSER_CHROMEOS_DBUS_SCREEN_LOCK_SERVICE_PROVIDER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "chromeos/dbus/services/cros_dbus_service.h"
  15 #include "dbus/exported_object.h"
  16
  17 namespace dbus {
  18 class MethodCall;
  19 }
  20
  21 namespace chromeos {
  22
  23 // This class exports a "LockScreen" D-Bus methods that the session manager
  24 // calls to instruct Chrome to lock the screen.
  25 class ScreenLockServiceProvider
  26     : public CrosDBusService::ServiceProviderInterface {
  27  public:
  28   ScreenLockServiceProvider();
  29   virtual ~ScreenLockServiceProvider();
  30
  31   // CrosDBusService::ServiceProviderInterface overrides:
  32   virtual void Start(
  33       scoped_refptr<dbus::ExportedObject> exported_object) override;
  34
  35  private:
  36   // Called from ExportedObject when a handler is exported as a D-Bus
  37   // method or failed to be exported.
  38   void OnExported(const std::string& interface_name,
  39                   const std::string& method_name,
  40                   bool success);
  41
  42   // Called on UI thread in response to D-Bus requests.
  43   void LockScreen(dbus::MethodCall* method_call,
  44                   dbus::ExportedObject::ResponseSender response_sender);
  45
  46   // Keep this last so that all weak pointers will be invalidated at the
  47   // beginning of destruction.
  48   base::WeakPtrFactory<ScreenLockServiceProvider> weak_ptr_factory_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(ScreenLockServiceProvider);
  51 };
  52
  53 }  // namespace chromeos
  54
  55 #endif  // CHROME_BROWSER_CHROMEOS_DBUS_SCREEN_LOCK_SERVICE_PROVIDER_H_