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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/input_overlay/ui/reposition_controller.h"
#include "ash/app_list/app_list_util.h"
#include "chrome/browser/ash/arc/input_overlay/ui/ui_utils.h"
#include "chrome/browser/ash/arc/input_overlay/util.h"
#include "ui/views/view.h"
namespace arc::input_overlay {
namespace {
// Clamp position `position` inside of the `parent_size` with padding of
// `parent_padding`
void ClampPosition(gfx::Point& position,
const gfx::Size& ui_size,
const gfx::Size& parent_size,
int parent_padding) {
int lo = parent_padding;
int hi = parent_size.width() - ui_size.width() - parent_padding;
if (lo >= hi) {
// Ignore `parent_padding` if there is not enough space.
lo = 0;
hi += parent_padding;
}
position.set_x(std::clamp(position.x(), lo, hi));
lo = parent_padding;
hi = parent_size.height() - ui_size.height() - parent_padding;
if (lo >= hi) {
// Ignore `parent_padding` if there is not enough space.
lo = 0;
hi += parent_padding;
}
position.set_y(std::clamp(position.y(), lo, hi));
}
} // namespace
RepositionController::RepositionController(views::View* host_view,
int parent_padding)
: host_view_(host_view), parent_padding_(parent_padding) {}
RepositionController::~RepositionController() = default;
void RepositionController::OnMousePressed(const ui::MouseEvent& event) {
OnDragStart(event);
}
void RepositionController::OnMouseDragged(const ui::MouseEvent& event) {
OnDragUpdate(event);
}
bool RepositionController::OnMouseReleased(const ui::MouseEvent& event) {
if (is_dragging_) {
OnDragEnd(event);
return true;
}
return false;
}
bool RepositionController::OnGestureEvent(ui::GestureEvent* event) {
switch (event->type()) {
case ui::EventType::kGestureScrollBegin:
OnDragStart(*event);
event->SetHandled();
break;
case ui::EventType::kGestureScrollUpdate:
OnDragUpdate(*event);
event->SetHandled();
break;
case ui::EventType::kGestureScrollEnd:
case ui::EventType::kScrollFlingStart:
if (!is_dragging_) {
return false;
}
OnDragEnd(*event);
event->SetHandled();
break;
default:
return false;
}
return true;
}
bool RepositionController::OnKeyPressed(const ui::KeyEvent& event) {
if (auto target_position = host_view_->origin();
OffsetPositionByArrowKey(event.key_code(), target_position)) {
ClampPosition(target_position, host_view_->size(),
host_view_->parent()->size(), parent_padding_);
host_view_->SetPosition(target_position);
return true;
}
return false;
}
bool RepositionController::OnKeyReleased(const ui::KeyEvent& event) {
if (!ash::IsArrowKeyEvent(event)) {
return false;
}
if (!key_released_callback_.is_null()) {
key_released_callback_.Run();
}
return true;
}
void RepositionController::OnDragStart(const ui::LocatedEvent& event) {
start_drag_event_pos_ = event.location();
ResetFocusTo(host_view_->parent());
}
void RepositionController::OnDragUpdate(const ui::LocatedEvent& event) {
if (!is_dragging_) {
is_dragging_ = true;
if (!first_dragging_callback_.is_null()) {
first_dragging_callback_.Run();
}
}
auto target_position =
host_view_->origin() + (event.location() - start_drag_event_pos_);
ClampPosition(target_position, host_view_->size(),
host_view_->parent()->size(), parent_padding_);
host_view_->SetPosition(target_position);
if (!dragging_callback_.is_null()) {
dragging_callback_.Run();
}
}
void RepositionController::OnDragEnd(const ui::LocatedEvent& event) {
is_dragging_ = false;
if (event.IsMouseEvent() && !mouse_drag_end_callback_.is_null()) {
mouse_drag_end_callback_.Run();
} else if (event.IsGestureEvent() && !gesture_drag_end_callback_.is_null()) {
gesture_drag_end_callback_.Run();
}
}
} // namespace arc::input_overlay
|
