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
|
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1">
<title>touchmove coalescing</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<script>
window.oncontextmenu = function(e) {
e.preventDefault();
}
window.addEventListener("touchstart", function(e) { e.preventDefault(); },
{ passive: false} );
var touchmoveEvents = [];
function touchmove(e) {
// Make touchmove handling slow
var start = performance.now();
while (performance.now() < (start + 5));
touchmoveEvents.push(e);
}
async function fireLotsOfSingleTouchMoves() {
var ret = new Promise(function(resolve) {
SpecialPowers.loadChromeScript(function() {
/* eslint-env mozilla/chrome-script */
var element = this.actorParent.rootFrameLoader.ownerElement;
var rect = element.getBoundingClientRect();
var win = element.ownerDocument.defaultView;
var utils = win.windowUtils;
var x = rect.x + (rect.width / 2);
var y = Math.floor(rect.y + (rect.height / 4));
var endY = Math.floor(rect.y + ((rect.height / 4) * 2));
utils.sendTouchEvent("touchstart", [0], [x], [y], [1], [1], [0], [1],
[0], [0], [0], 0, false);
while (y != endY) {
utils.sendTouchEvent("touchmove", [0], [x], [y], [1], [1], [0], [1],
[0], [0], [0], 0, false);
++y;
}
utils.sendTouchEvent("touchend", [0], [x], [y], [1], [1], [0], [1],
[0], [0], [0], 0, false);
});
touchmoveEvents = [];
window.addEventListener("touchmove", touchmove, true);
window.addEventListener("touchend", function(e) {
window.removeEventListener("touchmove", touchmove, true);
resolve(touchmoveEvents);
}, {once: true});
});
return ret
}
async function fireTwoSingleTouches() {
var ret = new Promise(function(resolve) {
SpecialPowers.loadChromeScript(function() {
/* eslint-env mozilla/chrome-script */
var element = this.actorParent.rootFrameLoader.ownerElement;
var rect = element.getBoundingClientRect();
var win = element.ownerDocument.defaultView;
var utils = win.windowUtils;
var x = rect.x + (rect.width / 2);
var startY = Math.floor(rect.y + (rect.height / 4));
var endY = Math.floor(rect.y + ((rect.height / 4) * 2));
utils.sendTouchEvent("touchstart", [0], [x], [startY], [1], [1], [0],
[1], [0], [0], [0], 0, false);
utils.sendTouchEvent("touchmove", [0], [x], [startY], [1], [1], [0],
[1], [0], [0], [0], 0, false);
utils.sendTouchEvent("touchmove", [0], [x], [startY + 1], [1], [1], [0],
[1], [0], [0], [0], 0, false);
utils.sendTouchEvent("touchend", [0], [x], [endY], [1], [1], [0],
[1], [0], [0], [0], 0, false);
});
touchmoveEvents = [];
window.addEventListener("touchmove", touchmove, true);
window.addEventListener("touchend", function(e) {
window.removeEventListener("touchmove", touchmove, true);
resolve(touchmoveEvents);
}, {once: true});
});
return ret
}
async function fireLotsOfMultiTouchMoves() {
var ret = new Promise(function(resolve) {
SpecialPowers.loadChromeScript(function() {
/* eslint-env mozilla/chrome-script */
var element = this.actorParent.rootFrameLoader.ownerElement;
var rect = element.getBoundingClientRect();
var win = element.ownerDocument.defaultView;
var utils = win.windowUtils;
var x = rect.x + (rect.width / 2);
var startY = Math.floor(rect.y + (rect.height / 4));
var endY = Math.floor(rect.y + ((rect.height / 4) * 2));
utils.sendTouchEvent("touchstart", [0, 1], [x, x + 1],
[startY, startY + 1], [1, 1], [1, 1], [0, 0],
[1, 1], [0, 0], [0, 0], [0, 0], 0, false);
while (startY != endY) {
utils.sendTouchEvent("touchmove", [0, 1], [x, x + 1],
[startY, startY + 1], [1, 1], [1, 1], [0, 0],
[1, 1], [0, 0], [0, 0], [0, 0], 0, false);
++startY;
}
utils.sendTouchEvent("touchend", [0, 1], [x, x + 1], [endY, endY + 1],
[1, 1], [1, 1], [0, 0], [1, 1], [0, 0], [0, 0],
[0, 0], 0, false);
});
touchmoveEvents = [];
window.addEventListener("touchmove", touchmove, true);
window.addEventListener("touchend", function(e) {
window.removeEventListener("touchmove", touchmove, true);
resolve(touchmoveEvents);
}, {once: true});
});
return ret
}
function disableCoalescing() {
return SpecialPowers.pushPrefEnv({"set": [["dom.events.compress.touchmove",
false],
["dom.events.coalesce.touchmove",
false]]});
}
function enableCoalescing() {
return SpecialPowers.pushPrefEnv({"set": [["dom.events.compress.touchmove",
false],
["dom.events.coalesce.touchmove",
true]]});
}
async function runTests() {
document.body.clientTop; // Flush layout
await disableCoalescing();
var touchMovesWithoutCoalescing = await fireLotsOfSingleTouchMoves();
await enableCoalescing();
var touchMovesWithCoalescing = await fireLotsOfSingleTouchMoves();
opener.ok(touchMovesWithoutCoalescing.length > touchMovesWithCoalescing.length,
"Coalescing should reduce the number of touchmove events");
opener.isDeeply(touchMovesWithoutCoalescing.shift().touches,
touchMovesWithCoalescing.shift().touches,
"Shouldn't have coalesced the initial touchmove");
opener.isDeeply(touchMovesWithoutCoalescing.pop().touches,
touchMovesWithCoalescing.pop().touches,
"The last touchmove event should be up-to-date");
await disableCoalescing();
var twoTouchMovesWithoutCoalescing = await fireTwoSingleTouches();
await enableCoalescing();
var twoTouchMovesWithCoalescing = await fireTwoSingleTouches();
opener.is(twoTouchMovesWithoutCoalescing.length, 2,
"Should have got two touchmoves");
opener.is(twoTouchMovesWithoutCoalescing.length,
twoTouchMovesWithCoalescing.length,
"Shouldn't have coalesced the touchmove.");
await disableCoalescing();
var multiTouchMovesWithoutCoalescing = await fireLotsOfMultiTouchMoves();
await enableCoalescing();
var multiTouchMovesWithCoalescing = await fireLotsOfMultiTouchMoves();
opener.ok(multiTouchMovesWithoutCoalescing.length > multiTouchMovesWithCoalescing.length,
"Coalescing should reduce the number of multitouch touchmove events");
opener.isDeeply(multiTouchMovesWithoutCoalescing.shift().touches,
multiTouchMovesWithCoalescing.shift().touches,
"Shouldn't have coalesced the initial multitouch touchmove event");
opener.isDeeply(multiTouchMovesWithoutCoalescing.pop().touches,
multiTouchMovesWithCoalescing.pop().touches,
"The last multitouch touchmove event should be up-to-date");
opener.finish();
window.close();
}
function init() {
SpecialPowers.pushPrefEnv({"set": [["dom.w3c_touch_events.enabled", true]]},
runTests);
}
</script>
</head>
<body style="height: 100vh;" onload="SimpleTest.waitForFocus(init);">
</body>
</html>
|
