Cross-platform plumbing for resize-to-client

remoting/host/resizing_host_observer.h

+// Copyright (c) 2012 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 REMOTING_HOST_RESIZING_HOST_OBSERVER_H_
+#define REMOTING_HOST_RESIZING_HOST_OBSERVER_H_
+
+#include <string>
+
+#include "remoting/host/host_status_observer.h"
+#include "remoting/host/chromoting_host.h"
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "third_party/skia/include/core/SkSize.h"
+
+namespace remoting {
+
+class DesktopResizer;
+
+// Use the specified DesktopResizer to match host desktop size to the client
+// view size as closely as is possible. When the connection closes, restore
+// the original desktop size.
+class ResizingHostObserver : public HostStatusObserver {
+ public:
+  explicit ResizingHostObserver(DesktopResizer* desktop_resizer,
+                                ChromotingHost* host);
+  virtual ~ResizingHostObserver();
+
+  // HostStatusObserver interface
+  virtual void OnClientAuthenticated(const std::string& jid) OVERRIDE;
+  virtual void OnClientDisconnected(const std::string& jid) OVERRIDE;
+  virtual void OnClientDimensionsChanged(const std::string& jid,
+                                         const SkISize& size) OVERRIDE;
+
+ private:
+  DesktopResizer* desktop_resizer_;
+  scoped_refptr<ChromotingHost> host_;
+  SkISize original_size_;
+  SkISize previous_size_;
+  std::string client_jid_;
+
+  DISALLOW_COPY_AND_ASSIGN(ResizingHostObserver);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_RESIZING_HOST_OBSERVER_H_