15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef ASH_DISPLAY_MOUSE_CURSOR_EVENT_FILTER_H 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define ASH_DISPLAY_MOUSE_CURSOR_EVENT_FILTER_H 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/ash_export.h" 9cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "ash/display/display_controller.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/gtest_prod_util.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/scoped_ptr.h" 13d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)#include "ui/events/event_handler.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/rect.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace aura { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class RootWindow; 181e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)class Window; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ash { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class SharedDisplayEdgeIndicator; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// An event filter that controls mouse location in extended desktop 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// environment. 26cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)class ASH_EXPORT MouseCursorEventFilter : public ui::EventHandler, 27cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) public DisplayController::Observer { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum MouseWarpMode { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WARP_ALWAYS, // Always warp the mouse when possible. 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WARP_DRAG, // Used when dragging a window. Top and bottom 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // corner of the shared edge is reserved for window 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // snapping. 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WARP_NONE, // No mouse warping. Used when resizing the window. 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MouseCursorEventFilter(); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~MouseCursorEventFilter(); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void set_mouse_warp_mode(MouseWarpMode mouse_warp_mode) { 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) mouse_warp_mode_ = mouse_warp_mode; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Shows/Hide the indicator for window dragging. The |from| 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // is the window where the dragging started. 46cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) void ShowSharedEdgeIndicator(aura::Window* from); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void HideSharedEdgeIndicator(); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 49cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // DisplayController::Observer: 50cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) virtual void OnDisplaysInitialized() OVERRIDE; 51cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) virtual void OnDisplayConfigurationChanged() OVERRIDE; 52cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 53cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // ui::EventHandler: 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 57d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) friend class DragWindowResizerTest; 58d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) friend class MouseCursorEventFilterTest; 59d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) FRIEND_TEST_ALL_PREFIXES(MouseCursorEventFilterTest, DoNotWarpTwice); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FRIEND_TEST_ALL_PREFIXES(MouseCursorEventFilterTest, SetMouseWarpModeFlag); 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FRIEND_TEST_ALL_PREFIXES(MouseCursorEventFilterTest, 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IndicatorBoundsTestOnRight); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FRIEND_TEST_ALL_PREFIXES(MouseCursorEventFilterTest, 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IndicatorBoundsTestOnLeft); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FRIEND_TEST_ALL_PREFIXES(MouseCursorEventFilterTest, 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IndicatorBoundsTestOnTopBottom); 67cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) FRIEND_TEST_ALL_PREFIXES(MouseCursorEventFilterTest, 68cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) WarpMouseDifferentScaleDisplaysInNative); 69d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) 70cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) FRIEND_TEST_ALL_PREFIXES(DragWindowResizerTest, WarpMousePointer); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // Moves the cursor to the point inside the root that is closest to 735f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // the point_in_screen, which is outside of the root window. 745f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) static void MoveCursorTo(aura::Window* root, 755f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) const gfx::Point& point_in_screen); 765f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Warps the mouse cursor to an alternate root window when the 78cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // mouse location in |event|, hits the edge of the event target's root and 79cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // the mouse cursor is considered to be in an alternate display. 80cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Returns true if/ the cursor was moved. 81cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool WarpMouseCursorIfNecessary(ui::MouseEvent* event); 82cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 835f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) bool WarpMouseCursorInNativeCoords(const gfx::Point& point_in_native, 845f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) const gfx::Point& point_in_screen); 855f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 86cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Update the edge/indicator bounds based on the current 87cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // display configuration. 88cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) void UpdateHorizontalEdgeBounds(); 89cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) void UpdateVerticalEdgeBounds(); 90cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 91cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Returns the source and destination window. When the 92cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // mouse_warp_mode_ is WARP_DRAG, src_window is the root window 93cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // where the drag starts. When the mouse_warp_mode_ is WARP_ALWAYS, 94cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // the src_window is always the primary root window, because there 95cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // is no difference between moving src to dst and moving dst to src. 96cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) void GetSrcAndDstRootWindows(aura::Window** src_window, 97cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) aura::Window** dst_window); 98cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 99cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) void reset_was_mouse_warped_for_test() { was_mouse_warped_ = false; } 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 101cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool WarpMouseCursorIfNecessaryForTest(aura::Window* target_root, 102cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) const gfx::Point& point_in_screen); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MouseWarpMode mouse_warp_mode_; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 106d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // This flag is used to suppress the accidental mouse warp back to the 107d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // original display. 108d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) bool was_mouse_warped_; 109d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The bounds for warp hole windows. |dst_indicator_bounds_| is kept 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // in the instance for testing. 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Rect src_indicator_bounds_; 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Rect dst_indicator_bounds_; 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) gfx::Rect src_edge_bounds_in_native_; 116cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) gfx::Rect dst_edge_bounds_in_native_; 117cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The root window in which the dragging started. 119cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) aura::Window* drag_source_root_; 1201e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 1211e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) float scale_when_drag_started_; 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Shows the area where a window can be dragged in to/out from 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // another display. 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<SharedDisplayEdgeIndicator> shared_display_edge_indicator_; 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(MouseCursorEventFilter); 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ash 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // ASH_DISPLAY_MOUSE_CURSOR_EVENT_FILTER_H 133