blob: 1a36415ccca7dd51be992db4abc1efe5ff7f676f (
plain)
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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
module.metadata = {
"stability": "unstable"
};
const { Ci } = require("chrome");
const events = require("../system/events");
const core = require("./core");
const assetsURI = require('../self').data.url();
// Taken from Gaia:
// https://github.com/andreasgal/gaia/blob/04fde2640a7f40314643016a5a6c98bf3755f5fd/webapi.js#L1470
function translateElement(element) {
element = element || document;
// check all translatable children (= w/ a `data-l10n-id' attribute)
var children = element.querySelectorAll('*[data-l10n-id]');
var elementCount = children.length;
for (var i = 0; i < elementCount; i++) {
var child = children[i];
// translate the child
var key = child.dataset.l10nId;
var data = core.get(key);
if (data)
child.textContent = data;
}
}
exports.translateElement = translateElement;
function onDocumentReady2Translate(event) {
let document = event.target;
document.removeEventListener("DOMContentLoaded", onDocumentReady2Translate,
false);
translateElement(document);
// Finally display document when we finished replacing all text content
document.documentElement.style.visibility = "visible";
}
function onContentWindow(event) {
let document = event.subject;
// Accept only HTML documents
if (!(document instanceof Ci.nsIDOMHTMLDocument))
return;
// Bug 769483: data:URI documents instanciated with nsIDOMParser
// have a null `location` attribute at this time
if (!document.location)
return;
// Accept only document from this addon
if (document.location.href.indexOf(assetsURI) !== 0)
return;
// First hide content of the document in order to have content blinking
// between untranslated and translated states
// TODO: use result of bug 737003 discussion in order to avoid any conflict
// with document CSS
document.documentElement.style.visibility = "hidden";
// Wait for DOM tree to be built before applying localization
document.addEventListener("DOMContentLoaded", onDocumentReady2Translate,
false);
}
// Listen to creation of content documents in order to translate them as soon
// as possible in their loading process
const ON_CONTENT = "document-element-inserted";
let enabled = false;
function enable() {
if (!enabled) {
events.on(ON_CONTENT, onContentWindow);
enabled = true;
}
}
exports.enable = enable;
function disable() {
if (enabled) {
events.off(ON_CONTENT, onContentWindow);
enabled = false;
}
}
exports.disable = disable;
require("api-utils/unload").when(disable);
|
