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
|
/* Any copyright is dedicated to the Public Domain.
* https://creativecommons.org/publicdomain/zero/1.0/ */
let gContentPrefs = Cc["@mozilla.org/content-pref/service;1"].getService(
Ci.nsIContentPrefService2
);
let gLoadContext = Cu.createLoadContext();
registerCleanupFunction(async function () {
await new Promise(resolve => {
gContentPrefs.removeByName(window.FullZoom.name, gLoadContext, {
handleResult() {},
handleCompletion() {
resolve();
},
});
});
});
var FullZoomHelper = {
async changeDefaultZoom(newZoom) {
let nonPrivateLoadContext = Cu.createLoadContext();
/* Because our setGlobal function takes in a browsing context, and
* because we want to keep this property consistent across both private
* and non-private contexts, we crate a non-private context and use that
* to set the property, regardless of our actual context.
*/
let parsedZoomValue = parseFloat((parseInt(newZoom) / 100).toFixed(2));
await new Promise(resolve => {
gContentPrefs.setGlobal(
FullZoom.name,
parsedZoomValue,
nonPrivateLoadContext,
{
handleCompletion(reason) {
resolve();
},
}
);
});
// The zoom level is used to update the commands associated with
// increasing, decreasing or resetting the Zoom levels. There are
// a series of async things we need to wait for (writing the content
// pref to the database, and then reading that content pref back out
// again and reacting to it), so waiting for the zoom level to reach
// the expected level is actually simplest to make sure we're okay to
// proceed.
await TestUtils.waitForCondition(() => {
return ZoomManager.zoom == parsedZoomValue;
});
},
async getGlobalValue() {
return new Promise(resolve => {
let cachedVal = parseFloat(
gContentPrefs.getCachedGlobal(FullZoom.name, gLoadContext)
);
if (cachedVal) {
// We've got cached information, though it may be we've cached
// an undefined value, or the cached info is invalid. To ensure
// a valid return, we opt to return the default 1.0 in the
// undefined and invalid cases.
resolve(parseFloat(cachedVal.value) || 1.0);
return;
}
let value = 1.0;
gContentPrefs.getGlobal(FullZoom.name, gLoadContext, {
handleResult(pref) {
if (pref.value) {
value = parseFloat(pref.value);
}
},
handleCompletion(reason) {
resolve(value);
},
handleError(error) {
console.error(error);
},
});
});
},
waitForLocationChange: function waitForLocationChange() {
return new Promise(resolve => {
Services.obs.addObserver(function obs(subj, topic, data) {
Services.obs.removeObserver(obs, topic);
resolve();
}, "browser-fullZoom:location-change");
});
},
selectTabAndWaitForLocationChange: function selectTabAndWaitForLocationChange(
tab
) {
if (!tab) {
throw new Error("tab must be given.");
}
if (gBrowser.selectedTab == tab) {
return Promise.resolve();
}
return Promise.all([
BrowserTestUtils.switchTab(gBrowser, tab),
this.waitForLocationChange(),
]);
},
removeTabAndWaitForLocationChange: function removeTabAndWaitForLocationChange(
tab
) {
tab = tab || gBrowser.selectedTab;
let selected = gBrowser.selectedTab == tab;
gBrowser.removeTab(tab);
if (selected) {
return this.waitForLocationChange();
}
return Promise.resolve();
},
load: function load(tab, url) {
return new Promise(resolve => {
let didLoad = false;
let didZoom = false;
promiseTabLoadEvent(tab, url).then(event => {
didLoad = true;
if (didZoom) {
resolve();
}
}, true);
this.waitForLocationChange().then(function () {
didZoom = true;
if (didLoad) {
resolve();
}
});
});
},
zoomTest: function zoomTest(tab, val, msg) {
is(ZoomManager.getZoomForBrowser(tab.linkedBrowser), val, msg);
},
BACK: 0,
FORWARD: 1,
navigate: function navigate(direction) {
return new Promise(resolve => {
let didPs = false;
let didZoom = false;
BrowserTestUtils.waitForContentEvent(
gBrowser.selectedBrowser,
"pageshow",
true
).then(() => {
didPs = true;
if (didZoom) {
resolve();
}
});
if (direction == this.BACK) {
gBrowser.goBack();
} else if (direction == this.FORWARD) {
gBrowser.goForward();
}
this.waitForLocationChange().then(function () {
didZoom = true;
if (didPs) {
resolve();
}
});
});
},
failAndContinue: function failAndContinue(func) {
return function (err) {
console.error(err);
ok(false, err);
func();
};
},
};
/**
* Waits for a load (or custom) event to finish in a given tab. If provided
* load an uri into the tab.
*
* @param tab
* The tab to load into.
* @param [optional] url
* The url to load, or the current url.
* @return {Promise} resolved when the event is handled.
* @resolves to the received event
* @rejects if a valid load event is not received within a meaningful interval
*/
async function promiseTabLoadEvent(tab, url) {
console.info("Wait tab event: load");
if (url) {
console.info("Expecting load for: ", url);
}
function handle(loadedUrl) {
if (loadedUrl === "about:blank" || (url && loadedUrl !== url)) {
console.info(`Skipping spurious load event for ${loadedUrl}`);
return false;
}
console.info("Tab event received: load");
return true;
}
let loaded = BrowserTestUtils.browserLoaded(tab.linkedBrowser, false, handle);
if (url) {
BrowserTestUtils.loadURIString(tab.linkedBrowser, url);
}
return loaded;
}
|
