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Issue 29573083: Issue 5028 - Use browser namespace (Closed) Base URL: https://hg.adblockplus.org/adblockplusui/
Patch Set: Rebase Created Oct. 16, 2017, 9:33 p.m.
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1 /*
2 * This file is part of Adblock Plus <https://adblockplus.org/>,
3 * Copyright (C) 2006-present eyeo GmbH
4 *
5 * Adblock Plus is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 3 as
7 * published by the Free Software Foundation.
8 *
9 * Adblock Plus is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 "use strict";
19
20 (function()
21 {
22 window.browser = {};
23
24 /* I18n */
25
26 let getLocaleCandidates = function(selectedLocale)
27 {
28 let candidates = [];
29 let defaultLocale = "en_US";
30
31 // e.g. "ja-jp-mac" -> "ja_JP", note that the part after the second
32 // dash is dropped, since we only support language and region
33 let parts = selectedLocale.split("-");
34 let language = parts[0];
35 let region = (parts[1] || "").toUpperCase();
36
37 if (region)
38 candidates.push(language + "_" + region);
39
40 candidates.push(language);
41
42 if (candidates.indexOf(defaultLocale) == -1)
43 candidates.push(defaultLocale);
44
45 return candidates;
46 };
47
48 let selectedLocale = window.navigator.language;
49 let match = /[?&]locale=([\w-]+)/.exec(window.location.search);
50 if (match)
51 selectedLocale = match[1];
52
53 let locales = getLocaleCandidates(selectedLocale);
54 let catalog = Object.create(null);
55 let catalogFile = window.location.pathname.replace(/.*\//, "")
56 .replace(/\..*/, "") + ".json";
57
58 let replacePlaceholder = function(text, placeholder, content)
59 {
60 return text.split("$" + placeholder + "$").join(content || "");
61 };
62
63 let parseMessage = function(rawMessage)
64 {
65 let text = rawMessage.message;
66 let placeholders = [];
67
68 for (let placeholder in rawMessage.placeholders)
69 {
70 let {content} = rawMessage.placeholders[placeholder];
71
72 if (/^\$\d+$/.test(content))
73 placeholders[parseInt(content.substr(1), 10) - 1] = placeholder;
74 else
75 text = replacePlaceholder(text, placeholder, content);
76 }
77
78 return [text, placeholders];
79 };
80
81 let readCatalog = function(locale, file)
82 {
83 let xhr = new XMLHttpRequest();
84 xhr.open("GET", "locale/" + locale + "/" + file, false);
85 xhr.overrideMimeType("text/plain");
86
87 try
88 {
89 xhr.send();
90 }
91 catch (e)
92 {
93 return;
94 }
95
96 if (xhr.status != 200 && xhr.status != 0)
97 return;
98
99 let rawCatalog = JSON.parse(xhr.responseText);
100 for (let msgId in rawCatalog)
101 {
102 if (!(msgId in catalog))
103 catalog[msgId] = parseMessage(rawCatalog[msgId]);
104 }
105 };
106
107 browser.i18n = {
108 getUILanguage()
109 {
110 return locales[0].replace(/_/g, "-");
111 },
112 getMessage(msgId, substitutions)
113 {
114 while (true)
115 {
116 let message = catalog[msgId];
117 if (message)
118 {
119 let text = message[0];
120 let placeholders = message[1];
121
122 if (!(substitutions instanceof Array))
123 substitutions = [substitutions];
124
125 for (let i = 0; i < placeholders.length; i++)
126 text = replacePlaceholder(text, placeholders[i], substitutions[i]);
127
128 return text;
129 }
130
131 if (locales.length == 0)
132 return "";
133
134 let locale = locales.shift();
135 readCatalog(locale, "common.json");
136 readCatalog(locale, catalogFile);
137 }
138 }
139 };
140 }());
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