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
|
<!DOCTYPE html>
<meta charset="utf-8" />
<title>Popover events</title>
<link rel="author" href="mailto:masonf@chromium.org">
<link rel=help href="https://open-ui.org/components/popover.research.explainer">
<link rel=help href="https://html.spec.whatwg.org/multipage/popover.html">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/popover-utils.js"></script>
<div popover>Popover</div>
<script>
function getPopoverAndSignal(t) {
const popover = document.querySelector('[popover]');
const controller = new AbortController();
const signal = controller.signal;
t.add_cleanup(() => controller.abort());
return {popover, signal};
}
window.onload = () => {
for(const method of ["listener","attribute"]) {
promise_test(async t => {
const {popover,signal} = getPopoverAndSignal(t);
assert_false(popover.matches(':popover-open'));
let showCount = 0;
let afterShowCount = 0;
let hideCount = 0;
let afterHideCount = 0;
function listener(e) {
assert_false(e.bubbles,'toggle events should not bubble');
if (e.type === "beforetoggle") {
if (e.newState === "open") {
++showCount;
assert_equals(e.oldState,"closed",'The "beforetoggle" event should be fired before the popover is open');
assert_false(e.target.matches(':popover-open'),'The popover should *not* be in the :popover-open state when the opening event fires.');
assert_true(e.cancelable,'beforetoggle should be cancelable only for the "show" transition');
} else {
++hideCount;
assert_equals(e.newState,"closed",'Popover toggleevent states should be "open" and "closed"');
assert_equals(e.oldState,"open",'The "beforetoggle" event should be fired before the popover is closed')
assert_true(e.target.matches(':popover-open'),'The popover should be in the :popover-open state when the hiding event fires.');
assert_false(e.cancelable,'beforetoggle should be cancelable only for the "show" transition');
e.preventDefault(); // beforetoggle should be cancelable only for the "show" transition
}
} else {
assert_equals(e.type,"toggle",'Popover events should be "beforetoggle" and "toggle"')
assert_false(e.cancelable,'toggle should never be cancelable');
e.preventDefault(); // toggle should never be cancelable
if (e.newState === "open") {
++afterShowCount;
if (document.body.contains(e.target)) {
assert_true(e.target.matches(':popover-open'),'The popover should be in the :popover-open state when the after opening event fires.');
}
} else {
++afterHideCount;
assert_equals(e.newState,"closed",'Popover toggleevent states should be "open" and "closed"');
assert_false(e.target.matches(':popover-open'),'The popover should *not* be in the :popover-open state when the after hiding event fires.');
}
e.preventDefault(); // "toggle" should not be cancelable.
}
};
switch (method) {
case "listener":
// These events do *not* bubble.
popover.addEventListener('beforetoggle', listener, {signal});
popover.addEventListener('toggle', listener, {signal});
break;
case "attribute":
assert_false(popover.hasAttribute('onbeforetoggle'));
t.add_cleanup(() => popover.removeAttribute('onbeforetoggle'));
popover.onbeforetoggle = listener;
assert_false(popover.hasAttribute('ontoggle'));
t.add_cleanup(() => popover.removeAttribute('ontoggle'));
popover.ontoggle = listener;
break;
default: assert_unreached();
}
assert_equals(0,showCount);
assert_equals(0,hideCount);
assert_equals(0,afterShowCount);
assert_equals(0,afterHideCount);
popover.showPopover();
assert_true(popover.matches(':popover-open'));
assert_equals(1,showCount);
assert_equals(0,hideCount);
assert_equals(0,afterShowCount);
assert_equals(0,afterHideCount);
await waitForTick();
assert_equals(1,afterShowCount,'toggle show is fired asynchronously');
assert_equals(0,afterHideCount);
assert_true(popover.matches(':popover-open'));
popover.hidePopover();
assert_false(popover.matches(':popover-open'));
assert_equals(1,showCount);
assert_equals(1,hideCount);
assert_equals(1,afterShowCount);
assert_equals(0,afterHideCount);
await waitForTick();
assert_equals(1,afterShowCount);
assert_equals(1,afterHideCount,'toggle hide is fired asynchronously');
// No additional events
await waitForTick();
await waitForTick();
assert_false(popover.matches(':popover-open'));
assert_equals(1,showCount);
assert_equals(1,hideCount);
assert_equals(1,afterShowCount);
assert_equals(1,afterHideCount);
}, `The "beforetoggle" event (${method}) get properly dispatched for popovers`);
}
promise_test(async t => {
const {popover,signal} = getPopoverAndSignal(t);
let cancel = true;
popover.addEventListener('beforetoggle',(e) => {
if (e.newState !== "open")
return;
if (cancel)
e.preventDefault();
}, {signal});
assert_false(popover.matches(':popover-open'));
popover.showPopover();
assert_false(popover.matches(':popover-open'),'The "beforetoggle" event should be cancelable for the "opening" transition');
cancel = false;
popover.showPopover();
assert_true(popover.matches(':popover-open'));
popover.hidePopover();
assert_false(popover.matches(':popover-open'));
}, 'The "beforetoggle" event is cancelable for the "opening" transition');
promise_test(async t => {
const {popover,signal} = getPopoverAndSignal(t);
popover.addEventListener('beforetoggle',(e) => {
assert_not_equals(e.newState,"closed",'The "beforetoggle" event was fired for the closing transition');
}, {signal});
assert_false(popover.matches(':popover-open'));
popover.showPopover();
assert_true(popover.matches(':popover-open'));
t.add_cleanup(() => {document.body.appendChild(popover);});
popover.remove();
await waitForTick(); // Check for async events also
await waitForTick(); // Check for async events also
assert_false(popover.matches(':popover-open'));
}, 'The "beforetoggle" event is not fired for element removal');
promise_test(async t => {
const {popover,signal} = getPopoverAndSignal(t);
let events;
function resetEvents() {
events = {
singleShow: false,
singleHide: false,
coalescedShow: false,
coalescedHide: false,
};
}
function setEvent(type) {
assert_equals(events[type],false,'event repeated');
events[type] = true;
}
function assertOnly(type,msg) {
Object.keys(events).forEach(val => {
assert_equals(events[val],val===type,`${msg} (${val})`);
});
}
popover.addEventListener('toggle',(e) => {
switch (e.newState) {
case "open":
switch (e.oldState) {
case "open": setEvent('coalescedShow'); break;
case "closed": setEvent('singleShow'); break;
default: assert_unreached();
}
break;
case "closed":
switch (e.oldState) {
case "closed": setEvent('coalescedHide'); break;
case "open": setEvent('singleHide'); break;
default: assert_unreached();
}
break;
default: assert_unreached();
}
}, {signal});
resetEvents();
assertOnly('none');
assert_false(popover.matches(':popover-open'));
popover.showPopover();
await waitForTick();
assert_true(popover.matches(':popover-open'));
assertOnly('singleShow','Single event should have been fired, which is a "show"');
resetEvents();
popover.hidePopover();
popover.showPopover(); // Immediate re-show
await waitForTick();
assert_true(popover.matches(':popover-open'));
assertOnly('coalescedShow','Single coalesced event should have been fired, which is a "show"');
resetEvents();
popover.hidePopover();
await waitForTick();
assertOnly('singleHide','Single event should have been fired, which is a "hide"');
assert_false(popover.matches(':popover-open'));
resetEvents();
popover.showPopover();
popover.hidePopover(); // Immediate re-hide
await waitForTick();
assertOnly('coalescedHide','Single coalesced event should have been fired, which is a "hide"');
assert_false(popover.matches(':popover-open'));
}, 'The "toggle" event is coalesced');
};
</script>
|
