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
|
// Copyright 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.
#include "chrome/browser/chromeos/ui/focus_ring_controller.h"
#include "ash/system/tray/actionable_view.h"
#include "ash/system/tray/tray_background_view.h"
#include "ash/system/tray/tray_popup_header_button.h"
#include "ash/wm/window_util.h"
#include "chrome/browser/chromeos/ui/focus_ring_layer.h"
#include "ui/aura/window.h"
#include "ui/views/controls/button/label_button.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
namespace chromeos {
FocusRingController::FocusRingController()
: visible_(false),
widget_(NULL) {
}
FocusRingController::~FocusRingController() {
SetVisible(false);
}
void FocusRingController::SetVisible(bool visible) {
if (visible_ == visible)
return;
visible_ = visible;
if (visible_) {
views::WidgetFocusManager::GetInstance()->AddFocusChangeListener(this);
aura::Window* active_window = ash::wm::GetActiveWindow();
if (active_window)
SetWidget(views::Widget::GetWidgetForNativeWindow(active_window));
} else {
views::WidgetFocusManager::GetInstance()->RemoveFocusChangeListener(this);
SetWidget(NULL);
}
}
void FocusRingController::UpdateFocusRing() {
views::View* view = NULL;
if (widget_ && widget_->GetFocusManager())
view = widget_->GetFocusManager()->GetFocusedView();
// No focus ring if no focused view or the focused view covers the whole
// widget content area (such as RenderWidgetHostWidgetAura).
if (!view ||
view->ConvertRectToWidget(view->bounds()) ==
widget_->GetContentsView()->bounds()) {
focus_ring_layer_.reset();
return;
}
gfx::Rect view_bounds = view->GetContentsBounds();
// Workarounds that attempts to pick a better bounds.
if (view->GetClassName() == views::LabelButton::kViewClassName) {
view_bounds = view->GetLocalBounds();
view_bounds.Inset(2, 2, 2, 2);
}
// Workarounds for system tray items that have customized focus borders. The
// insets here must be consistent with the ones used by those classes.
if (view->GetClassName() == ash::ActionableView::kViewClassName) {
view_bounds = view->GetLocalBounds();
view_bounds.Inset(1, 1, 3, 3);
} else if (view->GetClassName() == ash::TrayBackgroundView::kViewClassName) {
view_bounds.Inset(1, 1, 3, 3);
} else if (view->GetClassName() ==
ash::TrayPopupHeaderButton::kViewClassName) {
view_bounds = view->GetLocalBounds();
view_bounds.Inset(2, 1, 2, 2);
}
// Convert view bounds to widget/window coordinates.
view_bounds = view->ConvertRectToWidget(view_bounds);
// Translate window coordinates to root window coordinates.
DCHECK(view->GetWidget());
aura::Window* window = view->GetWidget()->GetNativeWindow();
aura::Window* root_window = window->GetRootWindow();
gfx::Point origin = view_bounds.origin();
aura::Window::ConvertPointToTarget(window, root_window, &origin);
view_bounds.set_origin(origin);
// Update the focus ring layer.
if (!focus_ring_layer_)
focus_ring_layer_.reset(new FocusRingLayer(this));
focus_ring_layer_->Set(root_window, view_bounds);
}
void FocusRingController::OnDeviceScaleFactorChanged() {
UpdateFocusRing();
}
void FocusRingController::SetWidget(views::Widget* widget) {
if (widget_) {
widget_->RemoveObserver(this);
if (widget_->GetFocusManager())
widget_->GetFocusManager()->RemoveFocusChangeListener(this);
}
widget_ = widget;
if (widget_) {
widget_->AddObserver(this);
if (widget_->GetFocusManager())
widget_->GetFocusManager()->AddFocusChangeListener(this);
}
UpdateFocusRing();
}
void FocusRingController::OnWidgetDestroying(views::Widget* widget) {
DCHECK_EQ(widget_, widget);
SetWidget(NULL);
}
void FocusRingController::OnWidgetBoundsChanged(views::Widget* widget,
const gfx::Rect& new_bounds) {
DCHECK_EQ(widget_, widget);
UpdateFocusRing();
}
void FocusRingController::OnNativeFocusChange(gfx::NativeView focused_before,
gfx::NativeView focused_now) {
views::Widget* widget =
focused_now ? views::Widget::GetWidgetForNativeWindow(focused_now) : NULL;
SetWidget(widget);
}
void FocusRingController::OnWillChangeFocus(views::View* focused_before,
views::View* focused_now) {
}
void FocusRingController::OnDidChangeFocus(views::View* focused_before,
views::View* focused_now) {
DCHECK_EQ(focused_now, widget_->GetFocusManager()->GetFocusedView());
UpdateFocusRing();
}
} // namespace chromeos
|
