text: // 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 "ui/views/widget/desktop_aura/x11_desktop_window_move_client.h"
  
  #include <X11/Xlib.h>
  // Get rid of a macro from Xlib.h that conflicts with Aura's RootWindow class.
  #undef RootWindow
  
  #include "base/debug/stack_trace.h"
  #include "base/message_loop/message_loop.h"
  #include "base/message_loop/message_pump_aurax11.h"
  #include "base/run_loop.h"
  #include "ui/aura/env.h"
  #include "ui/aura/root_window.h"
  #include "ui/base/events/event.h"
  #include "ui/base/x/x11_util.h"
  #include "ui/gfx/screen.h"
  
  namespace views {
  
  X11DesktopWindowMoveClient::X11DesktopWindowMoveClient()
      : move_loop_(this),
        root_window_(NULL) {
  }
  
  X11DesktopWindowMoveClient::~X11DesktopWindowMoveClient() {}
  
  void X11DesktopWindowMoveClient::OnMouseMovement(XMotionEvent* event) {
    gfx::Point cursor_point(event->x_root, event->y_root);
    gfx::Point system_loc = cursor_point - window_offset_;
    root_window_->SetHostBounds(gfx::Rect(
        system_loc, root_window_->GetHostSize()));
  }
  
  void X11DesktopWindowMoveClient::OnMouseReleased() {
    EndMoveLoop();
  }
  
  void X11DesktopWindowMoveClient::OnMoveLoopEnded() {
    root_window_ = NULL;
  }
  
  ////////////////////////////////////////////////////////////////////////////////
  // DesktopRootWindowHostLinux, aura::client::WindowMoveClient implementation:
  
  aura::client::WindowMoveResult X11DesktopWindowMoveClient::RunMoveLoop(
      aura::Window* source,
      const gfx::Vector2d& drag_offset,
      aura::client::WindowMoveSource move_source) {
    window_offset_ = drag_offset;
    root_window_ = source->GetRootWindow();
  
    bool success = move_loop_.RunMoveLoop(source, root_window_->last_cursor());
    return success ? aura::client::MOVE_SUCCESSFUL : aura::client::MOVE_CANCELED;
  }
  
  void X11DesktopWindowMoveClient::EndMoveLoop() {
    move_loop_.EndMoveLoop();
  }
  
  }  // namespace views
  