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
|
// Copyright 2015 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 "base/bind.h"
#include "base/command_line.h"
#include "base/macros.h"
#include "base/run_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "cc/base/math_util.h"
#include "content/browser/renderer_host/input/synthetic_gesture.h"
#include "content/browser/renderer_host/input/synthetic_smooth_scroll_gesture.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/common/input/synthetic_gesture_params.h"
#include "content/common/input/synthetic_smooth_scroll_gesture_params.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/common/content_switches.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/test_utils.h"
#include "content/shell/browser/shell.h"
namespace {
const char kCompositedScrollingDataURL[] =
"data:text/html;charset=utf-8,"
"<!DOCTYPE html>"
"<meta name='viewport' content='width=device-width'/>"
"<style>"
"#scroller {"
" width:500px;"
" height:500px;"
" overflow:scroll;"
" transform: rotateX(-30deg);"
"}"
"#content {"
" background-color:red;"
" width:1000px;"
" height:1000px;"
"}"
"</style>"
"<div id='scroller'>"
" <div id='content'>"
" </div>"
"</div>"
"<script>"
" document.title='ready';"
"</script>";
} // namespace
namespace content {
class CompositedScrollingBrowserTest : public ContentBrowserTest {
public:
CompositedScrollingBrowserTest() {}
~CompositedScrollingBrowserTest() override {}
void SetUpCommandLine(base::CommandLine* cmd) override {
cmd->AppendSwitch(switches::kEnablePreferCompositingToLCDText);
}
RenderWidgetHostImpl* GetWidgetHost() {
return RenderWidgetHostImpl::From(
shell()->web_contents()->GetRenderViewHost()->GetWidget());
}
void OnSyntheticGestureCompleted(SyntheticGesture::Result result) {
EXPECT_EQ(SyntheticGesture::GESTURE_FINISHED, result);
runner_->Quit();
}
protected:
void LoadURL() {
const GURL data_url(kCompositedScrollingDataURL);
NavigateToURL(shell(), data_url);
RenderWidgetHostImpl* host = GetWidgetHost();
scoped_refptr<FrameWatcher> frame_watcher(new FrameWatcher());
host->GetProcess()->AddFilter(frame_watcher.get());
host->GetView()->SetSize(gfx::Size(400, 400));
base::string16 ready_title(base::ASCIIToUTF16("ready"));
TitleWatcher watcher(shell()->web_contents(), ready_title);
ignore_result(watcher.WaitAndGetTitle());
// We need to wait until at least one frame has been composited
// otherwise the injection of the synthetic gestures may get
// dropped because of MainThread/Impl thread sync of touch event
// regions.
frame_watcher->WaitFrames(1);
}
// ContentBrowserTest:
int ExecuteScriptAndExtractInt(const std::string& script) {
int value = 0;
EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
shell()->web_contents(),
"domAutomationController.send(" + script + ")",
&value));
return value;
}
int GetScrollTop() {
return ExecuteScriptAndExtractInt(
"document.getElementById(\"scroller\").scrollTop");
}
// Generate touch events for a synthetic scroll from |point| for |distance|.
// Returns the distance scrolled.
int DoTouchScroll(const gfx::Point& point, const gfx::Vector2d& distance) {
EXPECT_EQ(0, GetScrollTop());
int scrollHeight = ExecuteScriptAndExtractInt(
"document.getElementById('scroller').scrollHeight");
EXPECT_EQ(1000, scrollHeight);
SyntheticSmoothScrollGestureParams params;
params.gesture_source_type = SyntheticGestureParams::TOUCH_INPUT;
params.anchor = gfx::PointF(point);
params.distances.push_back(-distance);
runner_ = new MessageLoopRunner();
scoped_ptr<SyntheticSmoothScrollGesture> gesture(
new SyntheticSmoothScrollGesture(params));
GetWidgetHost()->QueueSyntheticGesture(
gesture.Pass(),
base::Bind(&CompositedScrollingBrowserTest::OnSyntheticGestureCompleted,
base::Unretained(this)));
// Runs until we get the OnSyntheticGestureCompleted callback
runner_->Run();
runner_ = NULL;
return GetScrollTop();
}
private:
scoped_refptr<MessageLoopRunner> runner_;
DISALLOW_COPY_AND_ASSIGN(CompositedScrollingBrowserTest);
};
// Verify transforming a scroller doesn't prevent it from scrolling. See
// crbug.com/543655 for a case where this was broken.
// Disabled on MacOS because it doesn't support touch input.
// Disabled on Android due to flakiness, see https://crbug.com/376668.
#if defined(OS_MACOSX) || defined(OS_ANDROID)
#define MAYBE_Scroll3DTransformedScroller DISABLED_Scroll3DTransformedScroller
#else
#define MAYBE_Scroll3DTransformedScroller Scroll3DTransformedScroller
#endif
IN_PROC_BROWSER_TEST_F(CompositedScrollingBrowserTest,
MAYBE_Scroll3DTransformedScroller) {
LoadURL();
int scrollDistance =
DoTouchScroll(gfx::Point(50, 150), gfx::Vector2d(0, 100));
// The scroll distance is increased due to the rotation of the scroller.
EXPECT_EQ(std::floor(100 / std::cos(cc::MathUtil::Deg2Rad(30.f))) - 1,
scrollDistance);
}
} // namespace content
|
