ui/views/widget/desktop_aura/x11_desktop_window_move_client.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 #ifndef UI_VIEWS_WIDGET_DESKTOP_AURA_X11_DESKTOP_WINDOW_MOVE_CLIENT_H_
   6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_X11_DESKTOP_WINDOW_MOVE_CLIENT_H_
   7
   8 #include <X11/Xlib.h>
   9
  10 #include "base/callback.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/message_loop/message_loop.h"
  13 #include "ui/gfx/geometry/point.h"
  14 #include "ui/views/views_export.h"
  15 #include "ui/views/widget/desktop_aura/x11_move_loop_delegate.h"
  16 #include "ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h"
  17 #include "ui/wm/public/window_move_client.h"
  18
  19 namespace aura {
  20 class WindowTreeHost;
  21 }
  22
  23 namespace views {
  24
  25 // When we're dragging tabs, we need to manually position our window.
  26 class VIEWS_EXPORT X11DesktopWindowMoveClient :
  27       public views::X11MoveLoopDelegate,
  28       public aura::client::WindowMoveClient {
  29  public:
  30   X11DesktopWindowMoveClient();
  31   ~X11DesktopWindowMoveClient() override;
  32
  33   // Overridden from X11WholeScreenMoveLoopDelegate:
  34   void OnMouseMovement(const gfx::Point& screen_point,
  35                        int flags,
  36                        base::TimeDelta event_time) override;
  37   void OnMouseReleased() override;
  38   void OnMoveLoopEnded() override;
  39
  40   // Overridden from aura::client::WindowMoveClient:
  41   aura::client::WindowMoveResult RunMoveLoop(
  42       aura::Window* window,
  43       const gfx::Vector2d& drag_offset,
  44       aura::client::WindowMoveSource move_source) override;
  45   void EndMoveLoop() override;
  46
  47  private:
  48   X11WholeScreenMoveLoop move_loop_;
  49
  50   // We need to keep track of this so we can actually move it when reacting to
  51   // mouse events.
  52   aura::WindowTreeHost* host_;
  53
  54   // Our cursor offset from the top left window origin when the drag
  55   // started. Used to calculate the window's new bounds relative to the current
  56   // location of the cursor.
  57   gfx::Vector2d window_offset_;
  58 };
  59
  60 }  // namespace views
  61
  62 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_X11_DESKTOP_WINDOW_MOVE_CLIENT_H_