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// 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.
#include "ash/system/tray/throbber_view.h"
#include "ash/system/tray/tray_constants.h"
#include "grit/ash_resources.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
namespace ash {
namespace internal {
namespace {
// Time in ms per throbber frame.
const int kThrobberFrameMs = 30;
// Duration for showing/hiding animation in milliseconds.
const int kThrobberAnimationDurationMs = 200;
} // namespace
SystemTrayThrobber::SystemTrayThrobber(int frame_delay_ms)
: views::SmoothedThrobber(frame_delay_ms) {
}
SystemTrayThrobber::~SystemTrayThrobber() {
}
void SystemTrayThrobber::SetTooltipText(const base::string16& tooltip_text) {
tooltip_text_ = tooltip_text;
}
bool SystemTrayThrobber::GetTooltipText(const gfx::Point& p,
base::string16* tooltip) const {
if (tooltip_text_.empty())
return false;
*tooltip = tooltip_text_;
return true;
}
ThrobberView::ThrobberView() {
throbber_ = new SystemTrayThrobber(kThrobberFrameMs);
throbber_->SetFrames(ui::ResourceBundle::GetSharedInstance().GetImageNamed(
IDR_AURA_CROS_DEFAULT_THROBBER).ToImageSkia());
throbber_->set_stop_delay_ms(kThrobberAnimationDurationMs);
AddChildView(throbber_);
SetPaintToLayer(true);
layer()->SetFillsBoundsOpaquely(false);
layer()->SetOpacity(0.0);
}
ThrobberView::~ThrobberView() {
}
gfx::Size ThrobberView::GetPreferredSize() {
return gfx::Size(ash::kTrayPopupItemHeight, ash::kTrayPopupItemHeight);
}
void ThrobberView::Layout() {
View* child = child_at(0);
gfx::Size ps = child->GetPreferredSize();
child->SetBounds((width() - ps.width()) / 2,
(height() - ps.height()) / 2,
ps.width(), ps.height());
SizeToPreferredSize();
}
bool ThrobberView::GetTooltipText(const gfx::Point& p,
base::string16* tooltip) const {
if (tooltip_text_.empty())
return false;
*tooltip = tooltip_text_;
return true;
}
void ThrobberView::Start() {
ScheduleAnimation(true);
throbber_->Start();
}
void ThrobberView::Stop() {
ScheduleAnimation(false);
throbber_->Stop();
}
void ThrobberView::SetTooltipText(const base::string16& tooltip_text) {
tooltip_text_ = tooltip_text;
throbber_->SetTooltipText(tooltip_text);
}
void ThrobberView::ScheduleAnimation(bool start_throbber) {
// Stop any previous animation.
layer()->GetAnimator()->StopAnimating();
ui::ScopedLayerAnimationSettings animation(layer()->GetAnimator());
animation.SetTransitionDuration(
base::TimeDelta::FromMilliseconds(kThrobberAnimationDurationMs));
layer()->SetOpacity(start_throbber ? 1.0 : 0.0);
}
} // namespace internal
} // namespace ash
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