Implement clipboard for Chromoting Linux hosts.

remoting/host/event_executor_linux.cc

 // 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.
 
 #include "remoting/host/event_executor.h"
 
 #include <set>
 
 #include <X11/Xlib.h>
 #include <X11/XF86keysym.h>
 #include <X11/keysym.h>
 #include <X11/extensions/XTest.h>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
+#include "remoting/host/clipboard.h"
 #include "remoting/proto/internal.pb.h"
 #include "third_party/skia/include/core/SkPoint.h"
 
 namespace remoting {
 
 namespace {
 
 using protocol::ClipboardEvent;
 using protocol::KeyEvent;
 using protocol::MouseEvent;
@@ skipping 36 matching lines @@
   std::set<int> pressed_keys_;
   SkIPoint latest_mouse_position_;
 
   // X11 graphics context.
   Display* display_;
   Window root_window_;
 
   int test_event_base_;
   int test_error_base_;
 
+  scoped_ptr<Clipboard> clipboard_;
+
   DISALLOW_COPY_AND_ASSIGN(EventExecutorLinux);
 };
 
 int MouseButtonToX11ButtonNumber(MouseEvent::MouseButton button) {
   switch (button) {
     case MouseEvent::BUTTON_LEFT:
       return 1;
 
     case MouseEvent::BUTTON_RIGHT:
       return 3;
@@ skipping 182 matching lines @@
     return kInvalidKeycode;
 
   return kUsVkeyToKeysym[keycode];
 }
 
 EventExecutorLinux::EventExecutorLinux(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner)
     : task_runner_(task_runner),
       latest_mouse_position_(SkIPoint::Make(-1, -1)),
       display_(XOpenDisplay(NULL)),
-      root_window_(BadValue) {
+      root_window_(BadValue),
+      clipboard_(Clipboard::Create()) {
 }
 
 EventExecutorLinux::~EventExecutorLinux() {
   CHECK(pressed_keys_.empty());
 }
 
 bool EventExecutorLinux::Init() {
   CHECK(display_);
 
   root_window_ = RootWindow(display_, DefaultScreen(display_));
   if (root_window_ == BadValue) {
     LOG(ERROR) << "Unable to get the root window";
     return false;
   }
 
   // TODO(ajwong): Do we want to check the major/minor version at all for XTest?
   int major = 0;
   int minor = 0;
   if (!XTestQueryExtension(display_, &test_event_base_, &test_error_base_,
                            &major, &minor)) {
     LOG(ERROR) << "Server does not support XTest.";
     return false;
   }
 
   return true;
 }
 
 void EventExecutorLinux::InjectClipboardEvent(const ClipboardEvent& event) {
-  // TODO(simonmorris): Implement clipboard injection.
+  clipboard_->InjectClipboardEvent(event);
 }
 
 void EventExecutorLinux::InjectKeyEvent(const KeyEvent& event) {
   // HostEventDispatcher should filter events missing the pressed field.
   DCHECK(event.has_pressed());
 
   if (!task_runner_->BelongsToCurrentThread()) {
     task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&EventExecutorLinux::InjectKeyEvent, base::Unretained(this),
@@ skipping 116 matching lines @@
     int dx = event.wheel_offset_x();
     InjectScrollWheelClicks(HorizontalScrollWheelToX11ButtonNumber(dx),
                             abs(dx));
   }
 
   XFlush(display_);
 }
 
 void EventExecutorLinux::OnSessionStarted(
     scoped_ptr<protocol::ClipboardStub> client_clipboard) {
-  return;
+  clipboard_->Start(client_clipboard.Pass());
 }
 
 void EventExecutorLinux::OnSessionFinished() {
-  return;
+  clipboard_->Stop();
 }
 
 }  // namespace
 
 scoped_ptr<EventExecutor> EventExecutor::Create(
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) {
   scoped_ptr<EventExecutorLinux> executor(
       new EventExecutorLinux(main_task_runner));
   if (!executor->Init())
     return scoped_ptr<EventExecutor>(NULL);
   return executor.PassAs<EventExecutor>();
 }
 
 }  // namespace remoting