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
|
<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="application/javascript" src="/tests/SimpleTest/SpecialPowers.js"></script>
<script type="application/javascript">
/*
* Perform the following steps.
* 1) Go to file_load_history_entry_page_with_two_links.html, which contains two links, 'link1' and 'link2'
* 2) Click on 'link1' to be taken to file_load_history_entry_page_with_two_links.html#1
* 3) Click on 'link2' to be taken to file_load_history_entry_page_with_two_links.html#2
* 4) Go to file_load_history_entry_page_with_one_link.html
* 5) Push state to go to file_load_history_entry_page_with_one_link.html#1
*
* After each step
* - Check the number of session history entries
* - Reload the document and do the above again
* - Navigate back and check the correct history index
* - Navigate forward and check the correct history index and location
*/
async function test() {
let testWin;
var promise;
var previousLocation;
var numSHEntries = 0;
// Step 1. Open a new tab and load a document with two links inside
// Now we are at file_load_history_entry_page_with_two_links.html
numSHEntries++;
promise = waitForLoad();
testWin = window.open("file_load_history_entry_page_with_two_links.html");
await promise;
let shistory = SpecialPowers.wrap(testWin)
.docShell
.QueryInterface(SpecialPowers.Ci.nsIWebNavigation)
.sessionHistory;
// Step 2. Navigate the document by clicking on the 1st link
// Now we are at file_load_history_entry_page_with_two_links.html#1
numSHEntries++;
previousLocation = testWin.location.href;
await clickLink(testWin, "link1");
await doAfterEachTest(testWin, shistory, numSHEntries, previousLocation);
// Step 3. Navigate the document by clicking the 2nd link
// Now we are file_load_history_entry_page_with_two_links.html#2
numSHEntries++;
previousLocation = testWin.location.href;
await clickLink(testWin, "link2");
await doAfterEachTest(testWin, shistory, numSHEntries, previousLocation);
// Step 4. Navigate the document to a different page
// Now we are at file_load_history_entry_page_with_one_link.html
numSHEntries++;
previousLocation = testWin.location.href;
promise = waitForLoad();
testWin.location = "file_load_history_entry_page_with_one_link.html";
await promise;
await doAfterEachTest(testWin, shistory, numSHEntries, previousLocation,
true /* isCrossDocumentLoad */, false /* hashChangeExpected */);
// Step 5. Push some state
// Now we are at file_load_history_entry_page_with_one_link.html#1
numSHEntries++;
previousLocation = testWin.location.href;
testWin.history.pushState({foo: "bar"}, "", "#1");
is(testWin.history.length, numSHEntries, "Session history's length is correct after pushing state");
is(shistory.index, numSHEntries - 1 /* we haven't switched to new history entry yet*/,
"Session history's index is correct after pushing state");
await doAfterEachTest(testWin, shistory, numSHEntries, previousLocation);
// We are done with the test
testWin.close();
SimpleTest.finish();
}
/*
* @prevLocation
* if undefined, it is because there is no page to go back to
*
* @isCrossDocumentLoad
* did we just open a different document
* @hashChangeExpected
* Would we get a hash change event if we navigated backwards and forwards in history?
* This is framed with respect to the previous step, e.g. in the previous step was the
* hash different from the location we have navigated to just before calling this function?
* When we navigate forwards or backwards, we need to wait for this event
* because clickLink() also waits for hashchange event and
* if this function gets called before clickLink(), sometimes hashchange
* events from this function will leak to clickLink.
*/
async function doAfterEachTest(testWin, shistory, expectedNumSHEntries, prevLocation,
isCrossDocumentLoad = false, hashChangeExpected = true) {
var initialLocation = testWin.location.href;
var initialSHIndex = shistory.index;
var promise;
is(testWin.history.length, expectedNumSHEntries, "Session history's length is correct");
// Reload the document
promise = waitForLoad();
testWin.location.reload(true);
await promise;
is(testWin.history.length, expectedNumSHEntries, "Session history's length is correct after reloading");
if (prevLocation == undefined) {
return;
}
var hashChangePromise;
if (hashChangeExpected) {
hashChangePromise = new Promise(resolve => {
testWin.addEventListener("hashchange", resolve, {once: true});
});
}
// Navigate backwards
if (isCrossDocumentLoad) {
// Current page must have been a cross document load, so we just need to wait for
// document load to complete after we navigate the history back
// because popstate event will not be fired in this case
promise = waitForLoad();
} else {
promise = waitForPopstate(testWin);
}
testWin.history.back();
await promise;
if (hashChangeExpected) {
await hashChangePromise;
}
is(testWin.location.href, prevLocation, "Window location is correct after navigating back in history");
is(shistory.index, initialSHIndex - 1, "Session history's index is correct after navigating back in history");
// Navigate forwards
if (isCrossDocumentLoad) {
promise = waitForLoad();
} else {
promise = waitForPopstate(testWin);
}
if (hashChangeExpected) {
hashChangePromise = new Promise(resolve => {
testWin.addEventListener("hashchange", resolve, {once: true});
});
}
testWin.history.forward();
await promise;
if (hashChangeExpected) {
await hashChangePromise;
}
is(testWin.location.href, initialLocation, "Window location is correct after navigating forward in history");
is(shistory.index, initialSHIndex, "Session history's index is correct after navigating forward in history");
}
async function waitForLoad() {
return new Promise(resolve => {
window.bodyOnLoad = function() {
setTimeout(resolve, 0);
window.bodyOnLoad = undefined;
};
});
}
async function waitForPopstate(win) {
return new Promise(resolve => {
win.addEventListener("popstate", (e) => {
setTimeout(resolve, 0);
}, {once: true});
});
}
async function clickLink(win, id) {
var link = win.document.getElementById(id);
let clickPromise = new Promise(resolve => {
win.addEventListener("hashchange", resolve, {once: true});
});
link.click();
await clickPromise;
}
</script>
</head>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1539482">Bug 1539482</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="text/javascript">
SimpleTest.waitForExplicitFinish();
</script>
</pre>
<body onload="test()">
</body>
</html>
|
