ash/display/extended_mouse_warp_controller.h

   1 // Copyright 2015 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 ASH_DISPLAY_EXTENDED_MOUSE_WARP_CONTROLLER_H
   6 #define ASH_DISPLAY_EXTENDED_MOUSE_WARP_CONTROLLER_H
   7
   8 #include "ash/display/mouse_warp_controller.h"
   9
  10 #include "base/gtest_prod_util.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "ui/gfx/geometry/rect.h"
  13
  14 namespace aura {
  15 class Window;
  16 }
  17
  18 namespace gfx {
  19 class Point;
  20 }
  21
  22 namespace ash {
  23 namespace test {
  24 class DisplayManagerTestApi;
  25 }
  26 class SharedDisplayEdgeIndicator;
  27
  28 // A MouseWarpController used in extended display mode.
  29 class ASH_EXPORT ExtendedMouseWarpController : public MouseWarpController {
  30  public:
  31   explicit ExtendedMouseWarpController(aura::Window* drag_source);
  32   ~ExtendedMouseWarpController() override;
  33
  34   // MouseWarpController:
  35   bool WarpMouseCursor(ui::MouseEvent* event) override;
  36   void SetEnabled(bool enable) override;
  37
  38  private:
  39   friend class test::DisplayManagerTestApi;
  40   FRIEND_TEST_ALL_PREFIXES(ExtendedMouseWarpControllerTest,
  41                            IndicatorBoundsTestOnRight);
  42   FRIEND_TEST_ALL_PREFIXES(ExtendedMouseWarpControllerTest,
  43                            IndicatorBoundsTestOnLeft);
  44   FRIEND_TEST_ALL_PREFIXES(ExtendedMouseWarpControllerTest,
  45                            IndicatorBoundsTestOnTopBottom);
  46
  47   // Warps the mouse cursor to an alternate root window when the
  48   // mouse location in |event|, hits the edge of the event target's root and
  49   // the mouse cursor is considered to be in an alternate display.
  50   // If |update_mouse_location_now| is true,
  51   // Returns true if/ the cursor was moved.
  52   bool WarpMouseCursorInNativeCoords(const gfx::Point& point_in_native,
  53                                      const gfx::Point& point_in_screen,
  54                                      bool update_mouse_location_now);
  55
  56   // Update the edge/indicator bounds based on the current
  57   // display configuration.
  58   void UpdateHorizontalEdgeBounds();
  59   void UpdateVerticalEdgeBounds();
  60
  61   // Returns the source and destination window. When |src_window| is
  62   // |drag_soruce_root_| when it is set. Otherwise, the |src_window|
  63   // is always the primary root window, because there is no difference
  64   // between moving src to dst and moving dst to src.
  65   void GetSrcAndDstRootWindows(aura::Window** src_window,
  66                                aura::Window** dst_window);
  67
  68   void allow_non_native_event_for_test() { allow_non_native_event_ = true; }
  69
  70   // The bounds for warp hole windows. |dst_indicator_bounds_| is kept
  71   // in the instance for testing.
  72   gfx::Rect src_indicator_bounds_;
  73   gfx::Rect dst_indicator_bounds_;
  74
  75   gfx::Rect src_edge_bounds_in_native_;
  76   gfx::Rect dst_edge_bounds_in_native_;
  77
  78   // The root window in which the dragging started.
  79   aura::Window* drag_source_root_;
  80
  81   bool enabled_;
  82
  83   // Shows the area where a window can be dragged in to/out from
  84   // another display.
  85   scoped_ptr<SharedDisplayEdgeIndicator> shared_display_edge_indicator_;
  86
  87   bool allow_non_native_event_;
  88
  89   DISALLOW_COPY_AND_ASSIGN(ExtendedMouseWarpController);
  90 };
  91
  92 }  // namespace ash
  93
  94 #endif  // ASH_DISPLAY_EXTENDED_MOUSE_WARP_CONTROLLER_H