| // 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. |
| |
| #ifndef ASH_WM_DRAG_WINDOW_RESIZER_H_ |
| #define ASH_WM_DRAG_WINDOW_RESIZER_H_ |
| |
| #include <memory> |
| |
| #include "ash/ash_export.h" |
| #include "ash/wm/window_resizer.h" |
| #include "base/compiler_specific.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "ui/gfx/geometry/point.h" |
| |
| namespace ash { |
| |
| class DragWindowController; |
| |
| // DragWindowResizer is a decorator of WindowResizer and adds the ability to |
| // drag windows across displays. |
| class ASH_EXPORT DragWindowResizer : public WindowResizer { |
| public: |
| // Creates DragWindowResizer that adds the ability of dragging windows across |
| // displays to |next_window_resizer|. |
| DragWindowResizer(std::unique_ptr<WindowResizer> next_window_resizer, |
| wm::WindowState* window_state); |
| ~DragWindowResizer() override; |
| |
| // WindowResizer: |
| void Drag(const gfx::Point& location, int event_flags) override; |
| void CompleteDrag() override; |
| void RevertDrag() override; |
| void FlingOrSwipe(ui::GestureEvent* event) override; |
| |
| WindowResizer* next_window_resizer_for_testing() { |
| return next_window_resizer_.get(); |
| } |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(DragWindowResizerTest, DragWindowController); |
| FRIEND_TEST_ALL_PREFIXES(DragWindowResizerTest, |
| DragWindowControllerAcrossThreeDisplays); |
| |
| // Updates the bounds of the drag window for window dragging. |
| void UpdateDragWindow(const gfx::Rect& bounds_in_parent, |
| const gfx::Point& drag_location_in_screen); |
| |
| // Returns true if we should allow the mouse pointer to warp. |
| bool ShouldAllowMouseWarp(); |
| |
| // Do the real work of ending a drag. If the drag ends in a different display, |
| // move the dragged window to that display. |
| void EndDragImpl(); |
| |
| std::unique_ptr<WindowResizer> next_window_resizer_; |
| |
| // Shows a semi-transparent image of the window being dragged. |
| std::unique_ptr<DragWindowController> drag_window_controller_; |
| |
| gfx::Point last_mouse_location_; |
| |
| // Current instance for use by the DragWindowResizerTest. |
| static DragWindowResizer* instance_; |
| |
| base::WeakPtrFactory<DragWindowResizer> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DragWindowResizer); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_WM_DRAG_WINDOW_RESIZER_H_ |