remoting/protocol/clipboard_thread_proxy.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 // ClipboardThreadProxy is used to allow a Clipboard on the UI thread to invoke
   6 // a ClipboardStub on the network thread.
   7
   8 #ifndef REMOTING_PROTOCOL_CLIPBOARD_THREAD_PROXY_H_
   9 #define REMOTING_PROTOCOL_CLIPBOARD_THREAD_PROXY_H_
  10
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/task_runner.h"
  13 #include "remoting/protocol/clipboard_stub.h"
  14
  15 namespace base {
  16 class MessageLoopProxy;
  17 }  // namespace base
  18
  19 namespace remoting {
  20 namespace protocol {
  21
  22 class ClipboardThreadProxy : public ClipboardStub {
  23  public:
  24   ~ClipboardThreadProxy() override;
  25
  26   // Constructs a proxy for |clipboard_stub| which will trampoline invocations
  27   // to |clipboard_stub_task_runner|.
  28   ClipboardThreadProxy(
  29       const base::WeakPtr<ClipboardStub>& clipboard_stub,
  30       scoped_refptr<base::TaskRunner> clipboard_stub_task_runner);
  31
  32   // ClipboardStub implementation.
  33   void InjectClipboardEvent(const ClipboardEvent& event) override;
  34
  35  private:
  36   // Injects a clipboard event into a stub, if the given weak pointer to the
  37   // stub is valid.
  38   static void InjectClipboardEventStatic(
  39       const base::WeakPtr<ClipboardStub>& clipboard_stub,
  40       const ClipboardEvent& event);
  41
  42   base::WeakPtr<ClipboardStub> clipboard_stub_;
  43   scoped_refptr<base::TaskRunner> clipboard_stub_task_runner_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(ClipboardThreadProxy);
  46 };
  47
  48 }  // namespace protocol
  49 }  // namespace remoting
  50
  51 #endif  // REMOTING_PROTOCOL_CLIPBOARD_THREAD_PROXY_H_