forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
resize_shadow_controller.cc
192 lines (158 loc) · 5.73 KB
/
resize_shadow_controller.cc
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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
// 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.
#include "ash/wm/resize_shadow_controller.h"
#include <memory>
#include "ash/public/cpp/window_properties.h"
#include "ash/shell.h"
#include "ash/wm/overview/overview_controller.h"
#include "ash/wm/resize_shadow.h"
#include "ui/aura/client/aura_constants.h"
namespace ash {
namespace {
// Lock shadow params
constexpr ResizeShadow::InitParams kLockParams{
/*thickness=*/6,
/*shadow_corner_radius=*/6,
/*window_corner_radius=*/2,
/*opacity =*/0.3f,
/*color=*/gfx::kGoogleGrey900,
/*hit_test_enabled=*/false,
/*hide_duration_ms=*/0,
};
} // namespace
ResizeShadowController::ResizeShadowController() = default;
ResizeShadowController::~ResizeShadowController() {
RemoveAllShadows();
}
void ResizeShadowController::ShowShadow(aura::Window* window, int hit_test) {
RecreateShadowIfNeeded(window);
if (ShouldShowShadowForWindow(window) && window->IsVisible())
GetShadowForWindow(window)->ShowForHitTest(hit_test);
}
void ResizeShadowController::TryShowAllShadows() {
for (const auto& shadow : window_shadows_)
UpdateShadowVisibility(shadow.first, shadow.first->IsVisible());
}
void ResizeShadowController::HideShadow(aura::Window* window) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (!shadow)
return;
UpdateShadowVisibility(window, false);
}
void ResizeShadowController::HideAllShadows() {
for (auto& shadow : window_shadows_) {
if (!shadow.second)
continue;
switch (shadow.second->type_) {
case ResizeShadowType::kLock: { // Hides lock style of shadow
UpdateShadowVisibility(shadow.first, false);
break;
}
case ResizeShadowType::kUnlock: { // Deletes unlock style of shadow
shadow.second.reset();
break;
}
}
}
}
void ResizeShadowController::RemoveAllShadows() {
windows_observation_.RemoveAllObservations();
window_shadows_.clear();
}
void ResizeShadowController::OnWindowHierarchyChanged(
const aura::WindowObserver::HierarchyChangeParams& params) {
ResizeShadow* shadow = GetShadowForWindow(params.target);
if (shadow)
shadow->ReparentLayer();
}
void ResizeShadowController::OnWindowVisibilityChanging(aura::Window* window,
bool visible) {
UpdateShadowVisibility(window, visible);
}
void ResizeShadowController::OnWindowBoundsChanged(
aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds,
ui::PropertyChangeReason reason) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (shadow && window->GetProperty(aura::client::kUseWindowBoundsForShadow))
shadow->UpdateBoundsAndVisibility();
}
void ResizeShadowController::OnWindowStackingChanged(aura::Window* window) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (shadow)
shadow->ReparentLayer();
}
void ResizeShadowController::OnWindowDestroying(aura::Window* window) {
windows_observation_.RemoveObservation(window);
window_shadows_.erase(window);
}
void ResizeShadowController::OnWindowPropertyChanged(aura::Window* window,
const void* key,
intptr_t old) {
if (key != aura::client::kShowStateKey)
return;
UpdateShadowVisibility(window, window->IsVisible());
}
void ResizeShadowController::UpdateResizeShadowBoundsOfWindow(
aura::Window* window,
const gfx::Rect& bounds) {
ResizeShadow* shadow = GetShadowForWindow(window);
if (shadow)
shadow->UpdateBounds(bounds);
}
ResizeShadow* ResizeShadowController::GetShadowForWindowForTest(
aura::Window* window) {
return GetShadowForWindow(window);
}
void ResizeShadowController::RecreateShadowIfNeeded(aura::Window* window) {
if (!windows_observation_.IsObservingSource(window))
windows_observation_.AddObservation(window);
ResizeShadow* shadow = GetShadowForWindow(window);
const ash::ResizeShadowType type =
window->GetProperty(ash::kResizeShadowTypeKey);
// If the |window| has a resize shadow with the requested type, no need to
// recreate it.
if (shadow && shadow->type_ == type)
return;
ResizeShadow::InitParams params;
if (type == ResizeShadowType::kLock)
params = kLockParams;
auto new_shadow = std::make_unique<ResizeShadow>(window, params, type);
auto it = window_shadows_.find(window);
if (it == window_shadows_.end())
window_shadows_.insert(std::make_pair(window, std::move(new_shadow)));
else
it->second = std::move(new_shadow);
}
ResizeShadow* ResizeShadowController::GetShadowForWindow(
aura::Window* window) const {
auto it = window_shadows_.find(window);
return it != window_shadows_.end() ? it->second.get() : nullptr;
}
void ResizeShadowController::UpdateShadowVisibility(aura::Window* window,
bool visible) const {
ResizeShadow* shadow = GetShadowForWindow(window);
if (!shadow)
return;
if (shadow->type_ == ResizeShadowType::kLock) {
visible &= ShouldShowShadowForWindow(window);
if (visible)
shadow->ShowForHitTest();
}
if (!visible)
shadow->Hide();
}
bool ResizeShadowController::ShouldShowShadowForWindow(
aura::Window* window) const {
// Hide the shadow if it's a maximized/fullscreen/minimized window or the
// overview mode is active.
ui::WindowShowState show_state =
window->GetProperty(aura::client::kShowStateKey);
return show_state != ui::SHOW_STATE_FULLSCREEN &&
show_state != ui::SHOW_STATE_MAXIMIZED &&
show_state != ui::SHOW_STATE_MINIMIZED &&
!Shell::Get()->overview_controller()->InOverviewSession();
}
} // namespace ash