forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
capture_label_view.cc
472 lines (415 loc) · 19.2 KB
/
capture_label_view.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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
// Copyright 2020 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/capture_mode/capture_label_view.h"
#include "ash/capture_mode/capture_mode_constants.h"
#include "ash/capture_mode/capture_mode_controller.h"
#include "ash/capture_mode/capture_mode_session.h"
#include "ash/public/cpp/style/color_provider.h"
#include "ash/resources/vector_icons/vector_icons.h"
#include "ash/strings/grit/ash_strings.h"
#include "ash/style/ash_color_provider.h"
#include "ash/style/style_util.h"
#include "ash/wm/tablet_mode/tablet_mode_controller.h"
#include "base/bind.h"
#include "base/i18n/number_formatting.h"
#include "base/task/task_runner.h"
#include "base/time/time.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/compositor/callback_layer_animation_observer.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animation_element.h"
#include "ui/compositor/layer_animation_sequence.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/gfx/geometry/transform.h"
#include "ui/gfx/geometry/transform_util.h"
#include "ui/gfx/paint_vector_icon.h"
#include "ui/gfx/text_constants.h"
#include "ui/views/animation/ink_drop.h"
#include "ui/views/background.h"
#include "ui/views/controls/button/label_button.h"
#include "ui/views/controls/focus_ring.h"
#include "ui/views/controls/highlight_path_generator.h"
#include "ui/views/controls/label.h"
namespace ash {
namespace {
// Capture label button rounded corner radius.
constexpr int kCaptureLabelRadius = 18;
constexpr int kCountDownStartSeconds = 3;
constexpr int kCountDownEndSeconds = 1;
constexpr base::TimeDelta kCaptureLabelOpacityFadeoutDuration =
base::Milliseconds(33);
// Opacity fade in animation duration and scale up animation duration when the
// timeout label enters 3.
constexpr base::TimeDelta kCountDownEnter3Duration = base::Milliseconds(267);
// Opacity fade out animation duration and scale down animation duration when
// the timeout label exits 1.
constexpr base::TimeDelta kCountDownExit1Duration = base::Milliseconds(333);
// For other number enter/exit fade in/out, scale up/down animation duration.
constexpr base::TimeDelta kCountDownEnterExitDuration = base::Milliseconds(167);
// Delay to enter number 3 to start count down.
constexpr base::TimeDelta kStartCountDownDelay = base::Milliseconds(233);
// Delay to exit a number after entering animation is completed.
constexpr base::TimeDelta kCountDownExitDelay = base::Milliseconds(667);
// Different scales for enter/exiting countdown numbers.
constexpr float kEnterLabelScaleDown = 0.8f;
constexpr float kExitLabelScaleUp = 1.2f;
// Scale when exiting the number 1, unlike the other numbers, it will shrink
// down a bit and fade out.
constexpr float kExitLabel1ScaleDown = 0.8f;
void GetOpacityCountDownAnimationSetting(int count_down_number,
bool enter,
base::TimeDelta* duration,
gfx::Tween::Type* tween_type) {
if (count_down_number == kCountDownStartSeconds && enter) {
*duration = kCountDownEnter3Duration;
*tween_type = gfx::Tween::LINEAR_OUT_SLOW_IN;
} else if (count_down_number == kCountDownEndSeconds && !enter) {
*duration = kCountDownExit1Duration;
*tween_type = gfx::Tween::EASE_OUT_3;
} else {
*duration = kCountDownEnterExitDuration;
*tween_type = gfx::Tween::LINEAR;
}
}
void GetTransformCountDownAnimationSetting(int count_down_number,
bool enter,
base::TimeDelta* duration,
gfx::Tween::Type* tween_type) {
if (count_down_number == kCountDownStartSeconds && enter) {
*duration = kCountDownEnter3Duration;
*tween_type = gfx::Tween::LINEAR_OUT_SLOW_IN;
} else if (count_down_number == kCountDownEndSeconds && !enter) {
*duration = kCountDownExit1Duration;
*tween_type = gfx::Tween::EASE_OUT_3;
} else if (enter) {
*duration = kCountDownEnterExitDuration;
*tween_type = gfx::Tween::LINEAR_OUT_SLOW_IN;
} else {
*duration = kCountDownEnterExitDuration;
*tween_type = gfx::Tween::FAST_OUT_LINEAR_IN;
}
}
std::unique_ptr<ui::LayerAnimationElement> CreateOpacityLayerAnimationElement(
float target_opacity,
base::TimeDelta duration,
gfx::Tween::Type tween_type) {
std::unique_ptr<ui::LayerAnimationElement> opacity_element =
ui::LayerAnimationElement::CreateOpacityElement(target_opacity, duration);
opacity_element->set_tween_type(tween_type);
return opacity_element;
}
std::unique_ptr<ui::LayerAnimationElement> CreateTransformLayerAnimationElement(
const gfx::Transform& target_transform,
base::TimeDelta duration,
gfx::Tween::Type tween_type) {
std::unique_ptr<ui::LayerAnimationElement> transform_element =
ui::LayerAnimationElement::CreateTransformElement(target_transform,
duration);
transform_element->set_tween_type(tween_type);
return transform_element;
}
// Returns the transform that can scale |bounds| around its center point.
gfx::Transform GetScaleTransform(const gfx::Rect& bounds, float scale) {
const gfx::Point center_point = bounds.CenterPoint();
return gfx::GetScaleTransform(
gfx::Point(center_point.x() - bounds.x(), center_point.y() - bounds.y()),
scale);
}
} // namespace
CaptureLabelView::CaptureLabelView(
CaptureModeSession* capture_mode_session,
base::RepeatingClosure on_capture_button_pressed)
: timeout_count_down_(kCountDownStartSeconds),
capture_mode_session_(capture_mode_session) {
SetPaintToLayer();
layer()->SetFillsBoundsOpaquely(false);
auto* color_provider = AshColorProvider::Get();
SkColor background_color = color_provider->GetBaseLayerColor(
AshColorProvider::BaseLayerType::kTransparent80);
SetBackground(views::CreateSolidBackground(background_color));
layer()->SetRoundedCornerRadius(gfx::RoundedCornersF(kCaptureLabelRadius));
layer()->SetBackgroundBlur(ColorProvider::kBackgroundBlurSigma);
layer()->SetBackdropFilterQuality(ColorProvider::kBackgroundBlurQuality);
SkColor text_color = color_provider->GetContentLayerColor(
AshColorProvider::ContentLayerType::kTextColorPrimary);
label_button_ = AddChildView(std::make_unique<views::LabelButton>(
std::move(on_capture_button_pressed), std::u16string()));
label_button_->SetPaintToLayer();
label_button_->layer()->SetFillsBoundsOpaquely(false);
label_button_->SetEnabledTextColors(text_color);
label_button_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
label_button_->SetNotifyEnterExitOnChild(true);
views::InkDrop::Get(label_button_)
->SetMode(views::InkDropHost::InkDropMode::ON);
StyleUtil::ConfigureInkDropAttributes(
label_button_, StyleUtil::kBaseColor | StyleUtil::kInkDropOpacity);
label_button_->SetFocusBehavior(views::View::FocusBehavior::ACCESSIBLE_ONLY);
label_ = AddChildView(std::make_unique<views::Label>(std::u16string()));
label_->SetPaintToLayer();
label_->layer()->SetFillsBoundsOpaquely(false);
label_->SetEnabledColor(text_color);
label_->SetBackgroundColor(SK_ColorTRANSPARENT);
UpdateIconAndText();
}
CaptureLabelView::~CaptureLabelView() = default;
void CaptureLabelView::UpdateIconAndText() {
CaptureModeController* controller = CaptureModeController::Get();
const CaptureModeSource source = controller->source();
const bool is_capturing_image = controller->type() == CaptureModeType::kImage;
const bool in_tablet_mode = TabletModeController::Get()->InTabletMode();
auto* color_provider = AshColorProvider::Get();
SkColor icon_color = color_provider->GetContentLayerColor(
AshColorProvider::ContentLayerType::kIconColorPrimary);
gfx::ImageSkia icon;
std::u16string text;
switch (source) {
case CaptureModeSource::kFullscreen:
text = l10n_util::GetStringUTF16(
is_capturing_image
? (in_tablet_mode
? IDS_ASH_SCREEN_CAPTURE_LABEL_FULLSCREEN_IMAGE_CAPTURE_TABLET
: IDS_ASH_SCREEN_CAPTURE_LABEL_FULLSCREEN_IMAGE_CAPTURE_CLAMSHELL)
: (in_tablet_mode
? IDS_ASH_SCREEN_CAPTURE_LABEL_FULLSCREEN_VIDEO_RECORD_TABLET
: IDS_ASH_SCREEN_CAPTURE_LABEL_FULLSCREEN_VIDEO_RECORD_CLAMSHELL));
break;
case CaptureModeSource::kWindow: {
if (in_tablet_mode) {
text = l10n_util::GetStringUTF16(
is_capturing_image
? IDS_ASH_SCREEN_CAPTURE_LABEL_WINDOW_IMAGE_CAPTURE
: IDS_ASH_SCREEN_CAPTURE_LABEL_WINDOW_VIDEO_RECORD);
}
break;
}
case CaptureModeSource::kRegion: {
if (!capture_mode_session_->is_selecting_region()) {
if (CaptureModeController::Get()->user_capture_region().IsEmpty()) {
// We're now in waiting to select a capture region phase.
text = l10n_util::GetStringUTF16(
is_capturing_image
? IDS_ASH_SCREEN_CAPTURE_LABEL_REGION_IMAGE_CAPTURE
: IDS_ASH_SCREEN_CAPTURE_LABEL_REGION_VIDEO_RECORD);
} else {
// We're now in fine-tuning phase.
icon = is_capturing_image
? gfx::CreateVectorIcon(kCaptureModeImageIcon, icon_color)
: gfx::CreateVectorIcon(kCaptureModeVideoIcon, icon_color);
text = l10n_util::GetStringUTF16(
is_capturing_image ? IDS_ASH_SCREEN_CAPTURE_LABEL_IMAGE_CAPTURE
: IDS_ASH_SCREEN_CAPTURE_LABEL_VIDEO_RECORD);
}
}
break;
}
}
if (!icon.isNull()) {
label_->SetVisible(false);
label_button_->SetVisible(true);
// Update the icon only if one is not already present or it has changed to
// reduce repainting.
if (!label_button_->HasImage(views::Button::STATE_NORMAL) ||
!icon.BackedBySameObjectAs(
label_button_->GetImage(views::Button::STATE_NORMAL))) {
label_button_->SetImage(views::Button::STATE_NORMAL, icon);
}
label_button_->SetText(text);
} else if (!text.empty()) {
label_button_->SetVisible(false);
label_->SetVisible(true);
label_->SetText(text);
} else {
label_button_->SetVisible(false);
label_->SetVisible(false);
}
}
bool CaptureLabelView::ShouldHandleEvent() {
return label_button_->GetVisible() && !IsInCountDownAnimation();
}
void CaptureLabelView::StartCountDown(
base::OnceClosure countdown_finished_callback) {
countdown_finished_callback_ = std::move(countdown_finished_callback);
// Depending on the visibility of |label_button_| and |label_|, decide which
// view needs to fade out.
ui::Layer* animation_layer = nullptr;
if (label_button_->GetVisible())
animation_layer = label_button_->layer();
if (label_->GetVisible())
animation_layer = label_->layer();
if (animation_layer) {
// Fade out the opacity.
animation_layer->SetOpacity(1.f);
ui::ScopedLayerAnimationSettings settings(animation_layer->GetAnimator());
settings.SetTweenType(gfx::Tween::LINEAR);
settings.SetPreemptionStrategy(
ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
settings.SetTransitionDuration(kCaptureLabelOpacityFadeoutDuration);
animation_layer->SetOpacity(0.f);
}
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&CaptureLabelView::ScheduleCountDownAnimation,
weak_factory_.GetWeakPtr()),
kStartCountDownDelay);
}
bool CaptureLabelView::IsInCountDownAnimation() const {
return !!countdown_finished_callback_;
}
void CaptureLabelView::Layout() {
gfx::Rect label_bounds = GetLocalBounds();
label_button_->SetBoundsRect(label_bounds);
label_bounds.ClampToCenteredSize(label_->GetPreferredSize());
label_->SetBoundsRect(label_bounds);
// This is necessary to update the focus ring, which is a child view of
// |this|.
views::View::Layout();
}
gfx::Size CaptureLabelView::CalculatePreferredSize() const {
if (countdown_finished_callback_)
return gfx::Size(kCaptureLabelRadius * 2, kCaptureLabelRadius * 2);
const bool is_label_button_visible = label_button_->GetVisible();
const bool is_label_visible = label_->GetVisible();
if (!is_label_button_visible && !is_label_visible)
return gfx::Size();
if (is_label_button_visible) {
DCHECK(!is_label_visible);
return gfx::Size(
label_button_->GetPreferredSize().width() + kCaptureLabelRadius * 2,
kCaptureLabelRadius * 2);
}
DCHECK(is_label_visible && !is_label_button_visible);
return gfx::Size(label_->GetPreferredSize().width() + kCaptureLabelRadius * 2,
kCaptureLabelRadius * 2);
}
views::View* CaptureLabelView::GetView() {
return label_button_;
}
std::unique_ptr<views::HighlightPathGenerator>
CaptureLabelView::CreatePathGenerator() {
// Regular focus rings are drawn outside the view's bounds. Since this view is
// the same size as its widget, inset by half the focus ring thickness to
// ensure the focus ring is drawn inside the widget bounds.
return std::make_unique<views::RoundRectHighlightPathGenerator>(
gfx::Insets(views::FocusRing::kDefaultHaloThickness / 2),
kCaptureLabelRadius);
}
void CaptureLabelView::ScheduleCountDownAnimation() {
label_->SetVisible(true);
label_->SetText(base::FormatNumber(timeout_count_down_));
// Initial setup for entering |timeout_count_down_|:
ui::Layer* label_layer = label_->layer();
label_layer->SetOpacity(0.f);
// Use target bounds as when this function is called, we're still in bounds
// change animation, Widget::GetBoundsInScreen() won't return correct value.
gfx::Rect bounds = GetWidget()->GetLayer()->GetTargetBounds();
bounds.ClampToCenteredSize(label_->GetPreferredSize());
label_layer->SetTransform(GetScaleTransform(bounds, kEnterLabelScaleDown));
if (!animation_observer_) {
animation_observer_ = std::make_unique<ui::CallbackLayerAnimationObserver>(
base::BindRepeating(&CaptureLabelView::OnCountDownAnimationCompleted,
base::Unretained(this)));
}
StartLabelLayerAnimationSequences();
StartWidgetLayerAnimationSequences();
animation_observer_->SetActive();
}
bool CaptureLabelView::OnCountDownAnimationCompleted(
const ui::CallbackLayerAnimationObserver& observer) {
// If animation was aborted, return directly to avoid crash as |this| may
// no longer be valid.
if (observer.aborted_count())
return false;
if (timeout_count_down_ == kCountDownEndSeconds) {
std::move(countdown_finished_callback_).Run(); // |this| is destroyed here.
} else {
timeout_count_down_--;
ScheduleCountDownAnimation();
}
// Return false to prevent the observer from destroying itself.
return false;
}
void CaptureLabelView::StartLabelLayerAnimationSequences() {
// Create |label_opacity_sequence|. Note we don't need the exit animation for
// the last countdown number 1, since when exiting number 1, we'll fade out
// the entire widget, not just the label.
std::unique_ptr<ui::LayerAnimationSequence> label_opacity_sequence =
std::make_unique<ui::LayerAnimationSequence>();
base::TimeDelta enter_duration, exit_duration;
gfx::Tween::Type enter_type, exit_type;
GetOpacityCountDownAnimationSetting(timeout_count_down_, /*enter=*/true,
&enter_duration, &enter_type);
GetOpacityCountDownAnimationSetting(timeout_count_down_, /*enter=*/false,
&exit_duration, &exit_type);
label_opacity_sequence->AddElement(
CreateOpacityLayerAnimationElement(1.f, enter_duration, enter_type));
label_opacity_sequence->AddElement(
ui::LayerAnimationElement::CreatePauseElement(
ui::LayerAnimationElement::OPACITY, kCountDownExitDelay));
const bool is_final_second = timeout_count_down_ == kCountDownEndSeconds;
if (!is_final_second) {
label_opacity_sequence->AddElement(
CreateOpacityLayerAnimationElement(0.f, exit_duration, exit_type));
}
// Construct |label_transfrom_sequence|. Same reason above, we don't need
// the exit animation for the last countdown number 1.
std::unique_ptr<ui::LayerAnimationSequence> label_transfrom_sequence =
std::make_unique<ui::LayerAnimationSequence>();
GetTransformCountDownAnimationSetting(timeout_count_down_, /*enter=*/true,
&enter_duration, &enter_type);
GetTransformCountDownAnimationSetting(timeout_count_down_, /*enter=*/false,
&exit_duration, &exit_type);
label_transfrom_sequence->AddElement(CreateTransformLayerAnimationElement(
gfx::Transform(), enter_duration, enter_type));
label_transfrom_sequence->AddElement(
ui::LayerAnimationElement::CreatePauseElement(
ui::LayerAnimationElement::TRANSFORM, kCountDownExitDelay));
if (!is_final_second) {
gfx::Rect bounds = GetWidget()->GetLayer()->GetTargetBounds();
bounds.ClampToCenteredSize(label_->GetPreferredSize());
label_transfrom_sequence->AddElement(CreateTransformLayerAnimationElement(
GetScaleTransform(bounds, kExitLabelScaleUp), exit_duration,
exit_type));
}
label_opacity_sequence->AddObserver(animation_observer_.get());
label_transfrom_sequence->AddObserver(animation_observer_.get());
label_->layer()->GetAnimator()->StartTogether(
{label_opacity_sequence.release(), label_transfrom_sequence.release()});
}
void CaptureLabelView::StartWidgetLayerAnimationSequences() {
// Only need animate the widget layer when exiting the last countdown number.
if (timeout_count_down_ != kCountDownEndSeconds)
return;
std::unique_ptr<ui::LayerAnimationSequence> widget_opacity_sequence =
std::make_unique<ui::LayerAnimationSequence>();
base::TimeDelta exit_duration;
gfx::Tween::Type exit_type;
GetOpacityCountDownAnimationSetting(timeout_count_down_, /*enter=*/false,
&exit_duration, &exit_type);
widget_opacity_sequence->AddElement(
ui::LayerAnimationElement::CreatePauseElement(
ui::LayerAnimationElement::OPACITY,
kCountDownEnterExitDuration + kCountDownExitDelay));
widget_opacity_sequence->AddElement(
CreateOpacityLayerAnimationElement(0.f, exit_duration, exit_type));
std::unique_ptr<ui::LayerAnimationSequence> widget_transform_sequence =
std::make_unique<ui::LayerAnimationSequence>();
GetTransformCountDownAnimationSetting(timeout_count_down_, /*enter=*/false,
&exit_duration, &exit_type);
widget_transform_sequence->AddElement(
ui::LayerAnimationElement::CreatePauseElement(
ui::LayerAnimationElement::TRANSFORM,
kCountDownEnterExitDuration + kCountDownExitDelay));
const gfx::Rect bounds = GetWidget()->GetLayer()->GetTargetBounds();
widget_transform_sequence->AddElement(CreateTransformLayerAnimationElement(
GetScaleTransform(bounds, kExitLabel1ScaleDown), exit_duration,
exit_type));
widget_opacity_sequence->AddObserver(animation_observer_.get());
widget_transform_sequence->AddObserver(animation_observer_.get());
GetWidget()->GetLayer()->GetAnimator()->StartTogether(
{widget_opacity_sequence.release(), widget_transform_sequence.release()});
}
BEGIN_METADATA(CaptureLabelView, views::View)
END_METADATA
} // namespace ash