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      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 #include "ui/views/widget/desktop_aura/x11_desktop_window_move_client.h"
      6 
      7 #include <X11/Xlib.h>
      8 
      9 #include "base/debug/stack_trace.h"
     10 #include "base/message_loop/message_loop.h"
     11 #include "base/run_loop.h"
     12 #include "ui/aura/env.h"
     13 #include "ui/aura/window.h"
     14 #include "ui/aura/window_tree_host.h"
     15 #include "ui/base/x/x11_util.h"
     16 #include "ui/events/event.h"
     17 #include "ui/gfx/screen.h"
     18 
     19 namespace views {
     20 
     21 X11DesktopWindowMoveClient::X11DesktopWindowMoveClient()
     22     : move_loop_(this),
     23       host_(NULL) {
     24 }
     25 
     26 X11DesktopWindowMoveClient::~X11DesktopWindowMoveClient() {}
     27 
     28 void X11DesktopWindowMoveClient::OnMouseMovement(XMotionEvent* event) {
     29   gfx::Point cursor_point(event->x_root, event->y_root);
     30   gfx::Point system_loc = cursor_point - window_offset_;
     31   host_->SetBounds(gfx::Rect(system_loc, host_->GetBounds().size()));
     32 }
     33 
     34 void X11DesktopWindowMoveClient::OnMouseReleased() {
     35   EndMoveLoop();
     36 }
     37 
     38 void X11DesktopWindowMoveClient::OnMoveLoopEnded() {
     39   host_ = NULL;
     40 }
     41 
     42 ////////////////////////////////////////////////////////////////////////////////
     43 // DesktopWindowTreeHostLinux, aura::client::WindowMoveClient implementation:
     44 
     45 aura::client::WindowMoveResult X11DesktopWindowMoveClient::RunMoveLoop(
     46     aura::Window* source,
     47     const gfx::Vector2d& drag_offset,
     48     aura::client::WindowMoveSource move_source) {
     49   window_offset_ = drag_offset;
     50   host_ = source->GetHost();
     51 
     52   source->SetCapture();
     53   bool success = move_loop_.RunMoveLoop(source, host_->last_cursor());
     54   return success ? aura::client::MOVE_SUCCESSFUL : aura::client::MOVE_CANCELED;
     55 }
     56 
     57 void X11DesktopWindowMoveClient::EndMoveLoop() {
     58   move_loop_.EndMoveLoop();
     59 }
     60 
     61 }  // namespace views
     62