blob: ad0e02bf1b04797c6ebcd9999f055b0466124c3e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
// Copyright (c) 2013 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_DOCK_DOCK_WINDOW_RESIZER_H_
#define ASH_WM_DOCK_DOCK_WINDOW_RESIZER_H_
#include "ash/wm/dock/dock_types.h"
#include "ash/wm/window_resizer.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
namespace gfx {
class Point;
class Rect;
}
namespace aura {
class RootWindow;
}
namespace ash {
class DockedWindowLayoutManager;
// DockWindowResizer is used by ToplevelWindowEventFilter to handle dragging,
// moving or resizing of a window while it is docked to the side of a screen.
class ASH_EXPORT DockedWindowResizer : public WindowResizer {
public:
~DockedWindowResizer() override;
// Creates a new DockWindowResizer. The caller takes ownership of the
// returned object. The ownership of |next_window_resizer| is taken by the
// returned object. Returns NULL if not resizable.
static DockedWindowResizer* Create(WindowResizer* next_window_resizer,
wm::WindowState* window_state);
// WindowResizer:
void Drag(const gfx::Point& location, int event_flags) override;
void CompleteDrag() override;
void RevertDrag() override;
private:
// Creates DockWindowResizer that adds the ability to attach / detach
// windows to / from the dock. This object takes ownership of
// |next_window_resizer|.
DockedWindowResizer(WindowResizer* next_window_resizer,
wm::WindowState* window_state);
// If the provided window bounds should snap to the side of a screen,
// returns the offset that gives the necessary adjustment to snap.
void MaybeSnapToEdge(const gfx::Rect& bounds, gfx::Point* offset);
// Tracks the window's initial position and attachment at the start of a drag
// and informs the DockLayoutManager that a drag has started if necessary.
// |resizer| can be used to check if the resizer has been deleted during
// StartedDragging.
void StartedDragging(base::WeakPtr<DockedWindowResizer>& resizer);
// Informs the DockLayoutManager that the drag is complete if it was informed
// of the drag start. |move_result| specifies if the drag was completed or
// reverted.
void FinishedDragging(aura::client::WindowMoveResult move_result);
// Reparents dragged window as necessary to the docked container or back to
// workspace at the end of the drag. Calculates and returns action taken that
// can be reported in UMA stats. |is_resized| reports if the window is merely
// being resized rather than repositioned. |attached_panel| is necessary to
// avoid docking panels that have been attached to the launcher shelf at the
// end of the drag.
DockedAction MaybeReparentWindowOnDragCompletion(bool is_resized,
bool is_attached_panel);
gfx::Point last_location_;
// Wraps a window resizer and adds detaching / reattaching during drags.
scoped_ptr<WindowResizer> next_window_resizer_;
// Dock container window.
DockedWindowLayoutManager* dock_layout_;
DockedWindowLayoutManager* initial_dock_layout_;
// Set to true once Drag() is invoked and the bounds of the window change.
bool did_move_or_resize_;
// Set to true if the window that is being dragged was docked before drag.
bool was_docked_;
// True if the dragged window is docked during the drag.
bool is_docked_;
// True if the dragged window had |bounds_changed_by_user| before the drag.
// Cleared whenever the target window gets dragged outside of the docked area.
bool was_bounds_changed_by_user_;
base::WeakPtrFactory<DockedWindowResizer> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(DockedWindowResizer);
};
} // namespace ash
#endif // ASH_WM_DOCK_DOCK_WINDOW_RESIZER_H_
|
