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
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
content / browser / renderer_host / input / fling_browsertest.cc [blame]
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <tuple>
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/scoped_feature_list.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "components/input/render_widget_host_input_event_router.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/common/input/synthetic_smooth_scroll_gesture.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/public/test/hit_test_region_observer.h"
#include "content/shell/browser/shell.h"
#include "content/test/content_browser_test_utils_internal.h"
#include "net/dns/mock_host_resolver.h"
#include "third_party/blink/public/common/input/synthetic_web_input_event_builders.h"
#include "third_party/blink/public/common/input/web_input_event.h"
#include "ui/base/ui_base_features.h"
#include "ui/events/base_event_utils.h"
namespace {
const std::string kBrowserFlingDataURL = R"HTML(
<!DOCTYPE html>
<meta name='viewport' content='width=device-width'/>
<style>
html, body {
margin: 0;
}
.spacer { height: 10000px; }
</style>
<div class=spacer></div>
<script>
document.title='ready';
</script>)HTML";
const std::string kTouchActionFilterDataURL = R"HTML(
<!DOCTYPE html>
<meta name='viewport' content='width=device-width'/>
<style>
body {
height: 10000px;
touch-action: pan-y;
}
</style>
<script>
document.title='ready';
</script>)HTML";
} // namespace
namespace content {
class BrowserSideFlingBrowserTest : public ContentBrowserTest {
public:
BrowserSideFlingBrowserTest() {}
BrowserSideFlingBrowserTest(const BrowserSideFlingBrowserTest&) = delete;
BrowserSideFlingBrowserTest& operator=(const BrowserSideFlingBrowserTest&) =
delete;
~BrowserSideFlingBrowserTest() override {}
void OnSyntheticGestureCompleted(SyntheticGesture::Result result) {
EXPECT_EQ(SyntheticGesture::GESTURE_FINISHED, result);
run_loop_->Quit();
}
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
SetupCrossSiteRedirector(embedded_test_server());
ASSERT_TRUE(embedded_test_server()->Start());
}
void SetUpCommandLine(base::CommandLine* command_line) override {
IsolateAllSitesForTesting(command_line);
}
protected:
RenderWidgetHostImpl* GetWidgetHost() {
return RenderWidgetHostImpl::From(shell()
->web_contents()
->GetPrimaryMainFrame()
->GetRenderViewHost()
->GetWidget());
}
void SynchronizeThreads() {
MainThreadFrameObserver observer(GetWidgetHost());
observer.Wait();
}
void LoadURL(const std::string& page_data) {
const GURL data_url("data:text/html," + page_data);
EXPECT_TRUE(NavigateToURL(shell(), data_url));
RenderWidgetHostImpl* host = GetWidgetHost();
host->GetView()->SetSize(gfx::Size(400, 400));
std::u16string ready_title(u"ready");
TitleWatcher watcher(shell()->web_contents(), ready_title);
std::ignore = watcher.WaitAndGetTitle();
SynchronizeThreads();
}
void LoadPageWithOOPIF() {
// navigate main frame to URL.
GURL main_url(embedded_test_server()->GetURL(
"a.com", "/frame_tree/scrollable_page_with_positioned_frame.html"));
EXPECT_TRUE(NavigateToURL(shell(), main_url));
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetPrimaryFrameTree()
.root();
ASSERT_EQ(1U, root->child_count());
// Navigate oopif to URL.
FrameTreeNode* iframe_node = root->child_at(0);
GURL iframe_url(embedded_test_server()->GetURL("b.com", "/tall_page.html"));
{
RenderFrameDeletedObserver deleted_observer(
iframe_node->current_frame_host());
EXPECT_TRUE(NavigateToURLFromRenderer(iframe_node, iframe_url));
deleted_observer.WaitUntilDeleted();
}
// TODO(szager): This is a speculative fix for test flakiness caused by
// changes to render throttling (crbug.com/1158644). The hypothesis is that
// the test code might be initiating a scroll gesture before
// LocalFrameView::BeginLifecycleUpdates() is called in the child frame. By
// the time EvalJsAfterLifecycleUpdate() returns, BeginLifecycleUpdates() is
// guaranteed to have run.
ASSERT_TRUE(
EvalJsAfterLifecycleUpdate(iframe_node->current_frame_host(), "", "")
.error.empty());
WaitForHitTestData(iframe_node->current_frame_host());
ASSERT_EQ(
" Site A ------------ proxies for B\n"
" +--Site B ------- proxies for A\n"
"Where A = http://a.com/\n"
" B = http://b.com/",
DepictFrameTree(*root));
root_view_ = static_cast<RenderWidgetHostViewBase*>(
root->current_frame_host()->GetRenderWidgetHost()->GetView());
child_view_ = static_cast<RenderWidgetHostViewBase*>(
iframe_node->current_frame_host()->GetRenderWidgetHost()->GetView());
}
void SimulateTouchscreenFling(
RenderWidgetHostImpl* render_widget_host,
RenderWidgetHostImpl* parent_render_widget_host = nullptr,
const gfx::Vector2dF& fling_velocity = gfx::Vector2dF(0.f, -2000.f)) {
DCHECK(render_widget_host);
// Send a GSB to start scrolling sequence. In case of scroll bubbling wait
// for the parent to receive the GSB before sending the GFS.
auto input_msg_watcher =
parent_render_widget_host
? std::make_unique<InputMsgWatcher>(
parent_render_widget_host,
blink::WebInputEvent::Type::kGestureScrollBegin)
: std::make_unique<InputMsgWatcher>(
render_widget_host,
blink::WebInputEvent::Type::kGestureScrollBegin);
blink::WebGestureEvent gesture_scroll_begin(
blink::WebGestureEvent::Type::kGestureScrollBegin,
blink::WebInputEvent::kNoModifiers, ui::EventTimeForNow());
gesture_scroll_begin.SetSourceDevice(blink::WebGestureDevice::kTouchscreen);
gesture_scroll_begin.data.scroll_begin.delta_hint_units =
ui::ScrollGranularity::kScrollByPrecisePixel;
gesture_scroll_begin.data.scroll_begin.delta_x_hint = fling_velocity.x();
gesture_scroll_begin.data.scroll_begin.delta_y_hint = fling_velocity.y();
const gfx::PointF scroll_location_in_widget(1, 1);
const gfx::PointF scroll_location_in_root =
child_view_ ? child_view_->TransformPointToRootCoordSpaceF(
scroll_location_in_widget)
: scroll_location_in_widget;
const gfx::PointF scroll_location_in_screen =
child_view_ ? scroll_location_in_root +
root_view_->GetViewBounds().OffsetFromOrigin()
: scroll_location_in_widget;
gesture_scroll_begin.SetPositionInWidget(scroll_location_in_widget);
gesture_scroll_begin.SetPositionInScreen(scroll_location_in_screen);
render_widget_host->ForwardGestureEvent(gesture_scroll_begin);
input_msg_watcher->GetAckStateWaitIfNecessary();
// Send a GFS.
blink::WebGestureEvent gesture_fling_start(
blink::WebGestureEvent::Type::kGestureFlingStart,
blink::WebInputEvent::kNoModifiers, ui::EventTimeForNow());
gesture_fling_start.SetSourceDevice(blink::WebGestureDevice::kTouchscreen);
gesture_fling_start.data.fling_start.velocity_x = fling_velocity.x();
gesture_fling_start.data.fling_start.velocity_y = fling_velocity.y();
gesture_fling_start.SetPositionInWidget(scroll_location_in_widget);
gesture_fling_start.SetPositionInScreen(scroll_location_in_screen);
render_widget_host->ForwardGestureEvent(gesture_fling_start);
}
void SimulateTouchpadFling(
RenderWidgetHostImpl* render_widget_host,
RenderWidgetHostImpl* parent_render_widget_host = nullptr,
const gfx::Vector2dF& fling_velocity = gfx::Vector2dF(0.f, -2000.f)) {
DCHECK(render_widget_host);
// Send a wheel event to start scrolling sequence. In case of scroll
// bubbling wait for the parent to receive the GSB before sending the GFS.
auto input_msg_watcher =
parent_render_widget_host
? std::make_unique<InputMsgWatcher>(
parent_render_widget_host,
blink::WebInputEvent::Type::kGestureScrollBegin)
: std::make_unique<InputMsgWatcher>(
render_widget_host,
blink::WebInputEvent::Type::kGestureScrollBegin);
blink::WebMouseWheelEvent wheel_event =
blink::SyntheticWebMouseWheelEventBuilder::Build(
10, 10, fling_velocity.x() / 1000, fling_velocity.y() / 1000, 0,
ui::ScrollGranularity::kScrollByPrecisePixel);
wheel_event.phase = blink::WebMouseWheelEvent::kPhaseBegan;
const gfx::PointF position_in_widget(1, 1);
const gfx::PointF position_in_root =
child_view_
? child_view_->TransformPointToRootCoordSpaceF(position_in_widget)
: position_in_widget;
const gfx::PointF position_in_screen =
child_view_
? position_in_root + root_view_->GetViewBounds().OffsetFromOrigin()
: position_in_widget;
wheel_event.SetPositionInWidget(position_in_widget);
wheel_event.SetPositionInScreen(position_in_screen);
render_widget_host->ForwardWheelEvent(wheel_event);
input_msg_watcher->GetAckStateWaitIfNecessary();
// Send a GFS.
blink::WebGestureEvent gesture_fling_start(
blink::WebGestureEvent::Type::kGestureFlingStart,
blink::WebInputEvent::kNoModifiers, ui::EventTimeForNow());
gesture_fling_start.SetSourceDevice(blink::WebGestureDevice::kTouchpad);
gesture_fling_start.data.fling_start.velocity_x = fling_velocity.x();
gesture_fling_start.data.fling_start.velocity_y = fling_velocity.y();
gesture_fling_start.SetPositionInWidget(position_in_widget);
gesture_fling_start.SetPositionInScreen(position_in_screen);
render_widget_host->ForwardGestureEvent(gesture_fling_start);
}
void WaitForScroll() {
RenderFrameSubmissionObserver observer(
GetWidgetHost()->render_frame_metadata_provider());
gfx::PointF default_scroll_offset;
// scrollTop > 0 is not enough since the first progressFling is called from
// FlingController::ProcessGestureFlingStart. Wait for scrollTop to exceed
// 100 pixels to make sure that ProgressFling has been called through
// FlingScheduler at least once.
while (observer.LastRenderFrameMetadata()
.root_scroll_offset.value_or(default_scroll_offset)
.y() <= 100) {
observer.WaitForMetadataChange();
}
}
void GiveItSomeTime(int64_t time_delta_ms = 10) {
base::RunLoop run_loop;
base::SingleThreadTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE, run_loop.QuitClosure(), base::Milliseconds(time_delta_ms));
run_loop.Run();
}
void WaitForFrameScroll(FrameTreeNode* frame_node,
int target_scroll_offset = 100,
bool upward = false) {
DCHECK(frame_node);
double scroll_top =
EvalJs(frame_node->current_frame_host(), "window.scrollY")
.ExtractDouble();
// scrollTop > 0 is not enough since the first progressFling is called from
// FlingController::ProcessGestureFlingStart. Wait for scrollTop to reach
// target_scroll_offset to make sure that ProgressFling has been called
// through FlingScheduler at least once.
while ((upward && scroll_top > target_scroll_offset) ||
(!upward && scroll_top < target_scroll_offset)) {
GiveItSomeTime();
scroll_top = EvalJs(frame_node->current_frame_host(), "window.scrollY")
.ExtractDouble();
}
}
FrameTreeNode* GetRootNode() {
return static_cast<WebContentsImpl*>(shell()->web_contents())
->GetPrimaryFrameTree()
.root();
}
FrameTreeNode* GetChildNode() {
FrameTreeNode* root = GetRootNode();
return root->child_at(0);
}
std::unique_ptr<base::RunLoop> run_loop_;
raw_ptr<RenderWidgetHostViewBase, DanglingUntriaged> child_view_ = nullptr;
raw_ptr<RenderWidgetHostViewBase, DanglingUntriaged> root_view_ = nullptr;
};
// On Mac we don't have any touchscreen/touchpad fling events (GFS/GFC).
// Instead, the OS keeps sending wheel events when the user lifts their fingers
// from touchpad.
#if !BUILDFLAG(IS_MAC)
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest, TouchscreenFling) {
LoadURL(kBrowserFlingDataURL);
SimulateTouchscreenFling(GetWidgetHost());
WaitForScroll();
}
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest, TouchpadFling) {
LoadURL(kBrowserFlingDataURL);
SimulateTouchpadFling(GetWidgetHost());
WaitForScroll();
}
IN_PROC_BROWSER_TEST_F(
BrowserSideFlingBrowserTest,
EarlyTouchscreenFlingCancelationOnInertialGSUAckNotConsumed) {
LoadURL(kBrowserFlingDataURL);
// Fling upward and wait for the generated GSE to arrive. Then check that the
// RWHV has stopped the fling.
auto input_msg_watcher = std::make_unique<InputMsgWatcher>(
GetWidgetHost(), blink::WebInputEvent::Type::kGestureScrollEnd);
gfx::Vector2d fling_velocity(0, 2000);
SimulateTouchscreenFling(
GetWidgetHost(), nullptr /*parent_render_widget_host*/, fling_velocity);
input_msg_watcher->GetAckStateWaitIfNecessary();
EXPECT_TRUE(GetWidgetHost()->GetView()->view_stopped_flinging_for_test());
}
IN_PROC_BROWSER_TEST_F(
BrowserSideFlingBrowserTest,
EarlyTouchpadFlingCancelationOnInertialGSUAckNotConsumed) {
LoadURL(kBrowserFlingDataURL);
// Fling upward and wait for the generated GSE to arrive. Then check that the
// RWHV has stopped the fling.
auto input_msg_watcher = std::make_unique<InputMsgWatcher>(
GetWidgetHost(), blink::WebInputEvent::Type::kGestureScrollEnd);
gfx::Vector2d fling_velocity(0, 2000);
SimulateTouchpadFling(GetWidgetHost(), nullptr /*parent_render_widget_host*/,
fling_velocity);
input_msg_watcher->GetAckStateWaitIfNecessary();
EXPECT_TRUE(GetWidgetHost()->GetView()->view_stopped_flinging_for_test());
}
// TODO(crbug.com/1347271,crbug.com/269960): TODO: Re-enable this test.
// Tests that flinging does not continue after navigating to a page that uses
// the same renderer.
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest,
DISABLED_FlingingStopsAfterNavigation) {
GURL first_url(embedded_test_server()->GetURL(
"b.a.com", "/scrollable_page_with_iframe.html"));
EXPECT_TRUE(NavigateToURL(shell(), first_url));
// The test below only makes sense for same-site same-RFH navigations, so we
// need to ensure that we won't trigger a same-site cross-RFH navigation.
DisableProactiveBrowsingInstanceSwapFor(
shell()->web_contents()->GetPrimaryMainFrame());
SynchronizeThreads();
SimulateTouchscreenFling(GetWidgetHost());
WaitForScroll();
// Navigate to a second page with the same domain.
GURL second_url(
embedded_test_server()->GetURL("a.com", "/scrollable_page.html"));
EXPECT_TRUE(NavigateToURL(shell(), second_url));
SynchronizeThreads();
// Wait for 100ms. Then check that the second page has not scrolled.
GiveItSomeTime(100);
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetPrimaryFrameTree()
.root();
EXPECT_EQ(
0, EvalJs(root->current_frame_host(), "window.scrollY").ExtractDouble());
}
// TODO(crbug.com/40857753): Re-enable on Linux MSAN once not flaky.
#if BUILDFLAG(IS_LINUX) && defined(MEMORY_SANITIZER)
#define MAYBE_TouchscreenFlingInOOPIF DISABLED_TouchscreenFlingInOOPIF
#else
#define MAYBE_TouchscreenFlingInOOPIF TouchscreenFlingInOOPIF
#endif
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest,
MAYBE_TouchscreenFlingInOOPIF) {
LoadPageWithOOPIF();
SimulateTouchscreenFling(child_view_->host());
WaitForFrameScroll(GetChildNode());
}
// TODO(crbug.com/40230295): flaky.
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest,
DISABLED_TouchpadFlingInOOPIF) {
LoadPageWithOOPIF();
SimulateTouchpadFling(child_view_->host());
WaitForFrameScroll(GetChildNode());
}
// TODO(crbug.com/40230295): flaky.
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest,
DISABLED_TouchscreenInertialGSUsBubbleFromOOPIF) {
LoadPageWithOOPIF();
// Scroll the parent down so that it is scrollable upward.
EXPECT_TRUE(
ExecJs(GetRootNode()->current_frame_host(), "window.scrollTo(0, 20)"));
// We expect to have window.scrollY == 20 after scrolling but with zoom for
// dsf enabled on android we get window.scrollY == 19 (see
// https://crbug.com/891860).
WaitForFrameScroll(GetRootNode(), 19);
SynchronizeThreads();
// Fling and wait for the parent to scroll upward.
gfx::Vector2d fling_velocity(0, 2000);
SimulateTouchscreenFling(child_view_->host(), GetWidgetHost(),
fling_velocity);
WaitForFrameScroll(GetRootNode(), 15, true /* upward */);
}
// Touchpad fling only happens on ChromeOS.
#if BUILDFLAG(IS_CHROMEOS_ASH)
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest,
TouchpadInertialGSUsBubbleFromOOPIF) {
LoadPageWithOOPIF();
// Scroll the parent down so that it is scrollable upward.
EXPECT_TRUE(
ExecJs(GetRootNode()->current_frame_host(), "window.scrollTo(0, 20)"));
// We expect to have window.scrollY == 20 after scrolling but with zoom for
// dsf enabled on android we get window.scrollY == 19 (see
// https://crbug.com/891860).
WaitForFrameScroll(GetRootNode(), 19);
SynchronizeThreads();
// Fling and wait for the parent to scroll upward.
gfx::Vector2d fling_velocity(0, 2000);
SimulateTouchpadFling(child_view_->host(), GetWidgetHost(), fling_velocity);
WaitForFrameScroll(GetRootNode(), 15, true /* upward */);
}
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
// TODO(crbug.com/40230295): flaky.
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest,
DISABLED_InertialGSEGetsBubbledFromOOPIF) {
LoadPageWithOOPIF();
// Scroll the parent down so that it is scrollable upward.
EXPECT_TRUE(
ExecJs(GetRootNode()->current_frame_host(), "window.scrollTo(0, 20)"));
// We expect to have window.scrollY == 20 after scrolling but with zoom for
// dsf enabled on android we get window.scrollY == 19 (see
// https://crbug.com/891860).
WaitForFrameScroll(GetRootNode(), 19);
SynchronizeThreads();
// Fling and wait for the parent to scroll upward.
gfx::Vector2d fling_velocity(0, 2000);
SimulateTouchscreenFling(child_view_->host(), GetWidgetHost(),
fling_velocity);
WaitForFrameScroll(GetRootNode(), 15, true /* upward */);
// Send a GFC to the child and wait for the Generated GSE to get bubbled.
auto input_msg_watcher = std::make_unique<InputMsgWatcher>(
GetWidgetHost(), blink::WebInputEvent::Type::kGestureScrollEnd);
blink::WebGestureEvent gesture_fling_cancel(
blink::WebGestureEvent::Type::kGestureFlingCancel,
blink::WebInputEvent::kNoModifiers, ui::EventTimeForNow());
gesture_fling_cancel.SetSourceDevice(blink::WebGestureDevice::kTouchscreen);
const gfx::PointF location_in_widget(1, 1);
const gfx::PointF location_in_root =
child_view_->TransformPointToRootCoordSpaceF(location_in_widget);
const gfx::PointF location_in_screen =
location_in_root + root_view_->GetViewBounds().OffsetFromOrigin();
gesture_fling_cancel.SetPositionInWidget(location_in_widget);
gesture_fling_cancel.SetPositionInScreen(location_in_screen);
child_view_->host()->ForwardGestureEvent(gesture_fling_cancel);
input_msg_watcher->GetAckStateWaitIfNecessary();
}
// Checks that the fling controller of the oopif stops the fling when the
// bubbled inertial GSUs are not consumed by the parent's renderer.
// Flaky test https://crbug.com/1344075
IN_PROC_BROWSER_TEST_F(
BrowserSideFlingBrowserTest,
DISABLED_InertialGSUBubblingStopsWhenParentCannotScroll) {
LoadPageWithOOPIF();
// Scroll the parent down so that it is scrollable upward.
// Initialize observer before scrolling changes the position of the OOPIF.
HitTestRegionObserver observer(child_view_->GetFrameSinkId());
observer.WaitForHitTestData();
EXPECT_TRUE(
ExecJs(GetRootNode()->current_frame_host(), "window.scrollTo(0, 20)"));
// We expect to have window.scrollY == 20 after scrolling but with zoom for
// dsf enabled on android we get window.scrollY == 19 (see
// https://crbug.com/891860).
WaitForFrameScroll(GetRootNode(), 19);
SynchronizeThreads();
observer.WaitForHitTestDataChange();
// Fling and wait for the parent to scroll up.
auto input_msg_watcher = std::make_unique<InputMsgWatcher>(
GetWidgetHost(), blink::WebInputEvent::Type::kGestureScrollEnd);
SyntheticSmoothScrollGestureParams params;
params.gesture_source_type = content::mojom::GestureSourceType::kTouchInput;
const gfx::PointF location_in_widget(10, 10);
const gfx::PointF location_in_root =
child_view_->TransformPointToRootCoordSpaceF(location_in_widget);
const gfx::PointF location_in_screen =
location_in_root + root_view_->GetViewBounds().OffsetFromOrigin();
params.anchor = location_in_screen;
params.distances.push_back(gfx::Vector2d(0, 100));
params.prevent_fling = false;
run_loop_ = std::make_unique<base::RunLoop>();
GetWidgetHost()->QueueSyntheticGesture(
std::make_unique<SyntheticSmoothScrollGesture>(params),
base::BindOnce(&BrowserSideFlingBrowserTest::OnSyntheticGestureCompleted,
base::Unretained(this)));
// Runs until we get the OnSyntheticGestureCompleted callback.
run_loop_->Run();
// Wait for the Generated GSE to get bubbled.
input_msg_watcher->GetAckStateWaitIfNecessary();
// Check that the router has forced the last fling start target to stop
// flinging.
input::RenderWidgetHostInputEventRouter* router =
static_cast<WebContentsImpl*>(shell()->web_contents())
->GetInputEventRouter();
EXPECT_TRUE(
router->forced_last_fling_start_target_to_stop_flinging_for_test());
}
// Check that fling controller does not generate fling curve when view is
// destroyed.
IN_PROC_BROWSER_TEST_F(BrowserSideFlingBrowserTest,
NoFlingWhenViewIsDestroyed) {
LoadURL(kBrowserFlingDataURL);
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetPrimaryFrameTree()
.root();
GetWidgetHost()->GetView()->Destroy();
SimulateTouchscreenFling(GetWidgetHost());
// As the view is destroyed, there shouldn't be any active fling.
EXPECT_FALSE(
static_cast<input::InputRouterImpl*>(GetWidgetHost()->input_router())
->IsFlingActiveForTest());
EXPECT_EQ(
0, EvalJs(root->current_frame_host(), "window.scrollY").ExtractDouble());
}
#endif // !BUILDFLAG(IS_MAC)
class PhysicsBasedFlingCurveBrowserTest : public BrowserSideFlingBrowserTest {
public:
PhysicsBasedFlingCurveBrowserTest() {}
PhysicsBasedFlingCurveBrowserTest(const PhysicsBasedFlingCurveBrowserTest&) =
delete;
PhysicsBasedFlingCurveBrowserTest& operator=(
const PhysicsBasedFlingCurveBrowserTest&) = delete;
~PhysicsBasedFlingCurveBrowserTest() override {}
void SetUpCommandLine(base::CommandLine* command_line) override {
scoped_feature_list_.InitWithFeatures(
{features::kExperimentalFlingAnimation}, {});
IsolateAllSitesForTesting(command_line);
}
private:
base::test::ScopedFeatureList scoped_feature_list_;
};
IN_PROC_BROWSER_TEST_F(PhysicsBasedFlingCurveBrowserTest,
TargetScrollOffsetForFlingAnimation) {
LoadPageWithOOPIF();
// Higher value of fling velocity will make sure that the scroll distance
// calculated exceeds the upper bound.
gfx::Vector2d fling_velocity(0, -6000.0);
// Simulate fling on OOPIF
SimulateTouchscreenFling(child_view_->host(), nullptr, fling_velocity);
// If the viewport size required for fling curve generation
// (PhysicsBasedFlingCurveBrowser) is based on RenderWidget, test will time
// out as upper bound calculated will be 3 * size of iframe window(3 * 100)
// and thus it will not scroll beyond it. Viewport size should be based on
// root RenderWidgetHost.
WaitForFrameScroll(GetChildNode(), 400);
}
} // namespace content