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
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/controls/throbber.h"
#include <algorithm>
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/time/time.h"
#include "components/vector_icons/vector_icons.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/color/color_id.h"
#include "ui/color/color_provider.h"
#include "ui/gfx/animation/tween.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/paint_throbber.h"
#include "ui/gfx/paint_vector_icon.h"
namespace views {
namespace {
// The larger the diameter, the smaller the delay returned. This is intended
// because large diameters need less delay to look smooth and not jarring.
int GetFrameDelay(int diameter) {
int frames_per_second = std::clamp(diameter * 2, 30, 120);
return base::Seconds(1).InMilliseconds() / frames_per_second;
}
} // namespace
Throbber::Throbber(int diameter) : diameter_(diameter) {}
Throbber::~Throbber() {
Stop();
}
void Throbber::Start() {
if (IsRunning()) {
return;
}
start_time_ = base::TimeTicks::Now();
timer_.Start(
FROM_HERE, base::Milliseconds(GetFrameDelay(diameter_)),
base::BindRepeating(&Throbber::SchedulePaint, base::Unretained(this)));
SchedulePaint(); // paint right away
}
void Throbber::Stop() {
if (!IsRunning()) {
return;
}
timer_.Stop();
SchedulePaint();
}
bool Throbber::GetChecked() const {
return checked_;
}
void Throbber::SetChecked(bool checked) {
if (checked == checked_) {
return;
}
checked_ = checked;
OnPropertyChanged(&checked_, kPropertyEffectsPaint);
}
gfx::Size Throbber::CalculatePreferredSize(
const SizeBounds& /*available_size*/) const {
return gfx::Size(diameter_, diameter_);
}
void Throbber::OnPaint(gfx::Canvas* canvas) {
SkColor color =
GetColorProvider()->GetColor(color_id_.value_or(ui::kColorThrobber));
if (!IsRunning()) {
if (checked_) {
// The size of the checkmark, in DIP. This magic number matches the
// diameter plus padding inherent in the checkmark SVG.
const int kCheckmarkDipSize = diameter_ + 2;
canvas->Translate(gfx::Vector2d((width() - kCheckmarkDipSize) / 2,
(height() - kCheckmarkDipSize) / 2));
gfx::PaintVectorIcon(canvas, vector_icons::kCheckCircleIcon,
kCheckmarkDipSize, color);
}
return;
}
base::TimeDelta elapsed_time = base::TimeTicks::Now() - start_time_;
gfx::PaintThrobberSpinning(canvas, GetContentsBounds(), color, elapsed_time);
}
bool Throbber::IsRunning() const {
return timer_.IsRunning();
}
BEGIN_METADATA(Throbber)
ADD_PROPERTY_METADATA(bool, Checked)
END_METADATA
// Smoothed throbber ---------------------------------------------------------
SmoothedThrobber::SmoothedThrobber(int diameter)
: Throbber(diameter),
start_delay_(base::Milliseconds(200)),
stop_delay_(base::Milliseconds(50)) {}
SmoothedThrobber::~SmoothedThrobber() = default;
void SmoothedThrobber::Start() {
stop_timer_.Stop();
if (!IsRunning() && !start_timer_.IsRunning()) {
start_timer_.Start(FROM_HERE, start_delay_, this,
&SmoothedThrobber::StartDelayOver);
}
}
void SmoothedThrobber::StartDelayOver() {
Throbber::Start();
}
void SmoothedThrobber::Stop() {
if (!IsRunning()) {
start_timer_.Stop();
}
stop_timer_.Stop();
stop_timer_.Start(FROM_HERE, stop_delay_, this,
&SmoothedThrobber::StopDelayOver);
}
base::TimeDelta SmoothedThrobber::GetStartDelay() const {
return start_delay_;
}
void SmoothedThrobber::SetStartDelay(const base::TimeDelta& start_delay) {
if (start_delay == start_delay_) {
return;
}
start_delay_ = start_delay;
OnPropertyChanged(&start_delay_, kPropertyEffectsNone);
}
base::TimeDelta SmoothedThrobber::GetStopDelay() const {
return stop_delay_;
}
void SmoothedThrobber::SetStopDelay(const base::TimeDelta& stop_delay) {
if (stop_delay == stop_delay_) {
return;
}
stop_delay_ = stop_delay;
OnPropertyChanged(&stop_delay_, kPropertyEffectsNone);
}
void SmoothedThrobber::StopDelayOver() {
Throbber::Stop();
}
BEGIN_METADATA(SmoothedThrobber)
ADD_PROPERTY_METADATA(base::TimeDelta, StartDelay)
ADD_PROPERTY_METADATA(base::TimeDelta, StopDelay)
END_METADATA
} // namespace views
|