Minimum implementation of ARC clipboard Bridge

components/arc/arc_bridge_service.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_
 #define COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 92 matching lines @@
     // Called whenever ARC sends app icon data for specific scale factor.
     virtual void OnAppIcon(const std::string& package,
                            const std::string& activity,
                            ScaleFactor scale_factor,
                            const std::vector<uint8_t>& icon_png_data) {}
 
    protected:
     virtual ~AppObserver() {}
   };
 
+  // Notifies ARC Clipboard related events.
+  class ClipboardObserver {
+   public:
+    // Called when the Android clipboard content is changed. This is
+    // typically fired when a user initiates a "Copy" action.
+    virtual void OnSetClipboardContent(const std::string& text) {}
+
+  // Called when the Android clipboard decides to update its content.
+  // This is triggered when a "Paste" action is fired or an app
+  // or a service tries to retrieve the Android clipboard content.

[elijahtaylor1, 2015/12/15 01:17:05]

nit: alignment

[cnwan, 2015/12/21 11:18:00]

Done.

+    virtual void OnGetClipboardContent() {}
+
+   protected:
+    virtual ~ClipboardObserver() {}
+  };
+
   virtual ~ArcBridgeService();
 
   // Gets the global instance of the ARC Bridge Service. This can only be
   // called on the thread that this class was created on.
   static ArcBridgeService* Get();
 
   // Return true if ARC has been enabled through a commandline
   // switch.
   static bool GetEnabled(const base::CommandLine* command_line);
 
@@ skipping 16 matching lines @@
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
   void AddNotificationObserver(NotificationObserver* observer);
   void RemoveNotificationObserver(NotificationObserver* observer);
 
   // Adds or removes ARC app observers. This can only be called on the thread
   // that this class was created on.
   void AddAppObserver(AppObserver* observer);
   void RemoveAppObserver(AppObserver* observer);
 
+  // Adds or removes ARC clipboard observers. This can only be called on the
+  // thread that this class was created on.
+  void AddClipboardObserver(ClipboardObserver* observer);
+  void RemoveClipboardObserver(ClipboardObserver* observer);
+
   // Gets the current state of the bridge service.
   State state() const { return state_; }
 
   // Gets if ARC is available in this system.
   bool available() const { return available_; }
 
   // Requests registration of an input device on the ARC instance.
   // TODO(denniskempin): Make this interface more typesafe.
   // |name| should be the displayable name of the emulated device (e.g. "Chrome
   // OS Keyboard"), |device_type| the name of the device type (e.g. "keyboard")
@@ skipping 12 matching lines @@
 
   // Requests to launch an app.
   virtual bool LaunchApp(const std::string& package,
                          const std::string& activity) = 0;
 
   // Requests to load an icon of specific scale_factor.
   virtual bool RequestAppIcon(const std::string& package,
                               const std::string& activity,
                               ScaleFactor scale_factor) = 0;
 
+  // Sends the Chrome clipboard content to Android.
+  virtual bool SendClipboardContentToAndroid(const std::string& text) = 0;
+
  protected:
   ArcBridgeService();
 
   // Changes the current state and notifies all observers.
   void SetState(State state);
 
   // Changes the current availability and notifies all observers.
   void SetAvailable(bool availability);
 
   base::ObserverList<Observer>& observer_list() { return observer_list_; }
+
   base::ObserverList<NotificationObserver>& notification_observer_list() {
     return notification_observer_list_;
   }
 
+  base::ObserverList<ClipboardObserver>& clipboard_observer_list() {
+    return clipboard_observer_list_;
+  }
+
   base::ObserverList<AppObserver>& app_observer_list() {
     return app_observer_list_;
   }
 
   bool CalledOnValidThread();
 
  private:
   friend class ArcBridgeTest;
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Basic);
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Prerequisites);
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, ShutdownMidStartup);
 
   base::ObserverList<Observer> observer_list_;
   base::ObserverList<NotificationObserver> notification_observer_list_;
-
+  base::ObserverList<ClipboardObserver> clipboard_observer_list_;
   base::ObserverList<AppObserver> app_observer_list_;
 
   base::ThreadChecker thread_checker_;
 
   // If the ARC instance service is available.
   bool available_;
 
   // The current state of the bridge.
   ArcBridgeService::State state_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcBridgeService);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_