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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "ash/common/system/tray/throbber_view.h" | |
6 | |
7 #include "ash/common/system/tray/tray_constants.h" | |
8 #include "ash/resources/grit/ash_resources.h" | |
9 #include "ui/base/resource/resource_bundle.h" | |
10 #include "ui/compositor/layer.h" | |
11 #include "ui/compositor/scoped_layer_animation_settings.h" | |
12 | |
13 namespace ash { | |
14 namespace { | |
15 | |
16 // Duration for showing/hiding animation in milliseconds. | |
17 const int kThrobberAnimationDurationMs = 200; | |
18 | |
19 } // namespace | |
20 | |
21 SystemTrayThrobber::SystemTrayThrobber() : views::SmoothedThrobber() {} | |
22 | |
23 SystemTrayThrobber::~SystemTrayThrobber() {} | |
24 | |
25 void SystemTrayThrobber::SetTooltipText(const base::string16& tooltip_text) { | |
26 tooltip_text_ = tooltip_text; | |
27 } | |
28 | |
29 bool SystemTrayThrobber::GetTooltipText(const gfx::Point& p, | |
30 base::string16* tooltip) const { | |
31 if (tooltip_text_.empty()) | |
32 return false; | |
33 | |
34 *tooltip = tooltip_text_; | |
35 return true; | |
36 } | |
37 | |
38 ThrobberView::ThrobberView() { | |
39 throbber_ = new SystemTrayThrobber(); | |
40 throbber_->set_stop_delay_ms(kThrobberAnimationDurationMs); | |
41 AddChildView(throbber_); | |
42 | |
43 SetPaintToLayer(); | |
44 layer()->SetFillsBoundsOpaquely(false); | |
45 layer()->SetOpacity(0.0); | |
46 } | |
47 | |
48 ThrobberView::~ThrobberView() {} | |
49 | |
50 gfx::Size ThrobberView::GetPreferredSize() const { | |
51 return gfx::Size(kTrayPopupItemMinHeight, kTrayPopupItemMinHeight); | |
52 } | |
53 | |
54 void ThrobberView::Layout() { | |
55 View* child = child_at(0); | |
56 gfx::Size ps = child->GetPreferredSize(); | |
57 child->SetBounds((width() - ps.width()) / 2, (height() - ps.height()) / 2, | |
58 ps.width(), ps.height()); | |
59 SizeToPreferredSize(); | |
60 } | |
61 | |
62 bool ThrobberView::GetTooltipText(const gfx::Point& p, | |
63 base::string16* tooltip) const { | |
64 if (tooltip_text_.empty()) | |
65 return false; | |
66 | |
67 *tooltip = tooltip_text_; | |
68 return true; | |
69 } | |
70 | |
71 void ThrobberView::Start() { | |
72 ScheduleAnimation(true); | |
73 throbber_->Start(); | |
74 } | |
75 | |
76 void ThrobberView::Stop() { | |
77 ScheduleAnimation(false); | |
78 throbber_->Stop(); | |
79 } | |
80 | |
81 void ThrobberView::SetTooltipText(const base::string16& tooltip_text) { | |
82 tooltip_text_ = tooltip_text; | |
83 throbber_->SetTooltipText(tooltip_text); | |
84 } | |
85 | |
86 void ThrobberView::ScheduleAnimation(bool start_throbber) { | |
87 // Stop any previous animation. | |
88 layer()->GetAnimator()->StopAnimating(); | |
89 | |
90 ui::ScopedLayerAnimationSettings animation(layer()->GetAnimator()); | |
91 animation.SetTransitionDuration( | |
92 base::TimeDelta::FromMilliseconds(kThrobberAnimationDurationMs)); | |
93 | |
94 layer()->SetOpacity(start_throbber ? 1.0 : 0.0); | |
95 } | |
96 | |
97 } // namespace ash | |
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