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|   1 /* Copyright (c) 2011 The Chromium Authors. All rights reserved. |  | 
|   2  * Use of this source code is governed by a BSD-style license that can be |  | 
|   3  * found in the LICENSE file. |  | 
|   4  */ |  | 
|   5  |  | 
|   6 var l10n = l10n || {}; |  | 
|   7  |  | 
|   8 /** |  | 
|   9  * Localize an element by setting its innerText according to the specified tag |  | 
|  10  * and an optional set of substitutions. |  | 
|  11  * @param {Element} element The element to localize. |  | 
|  12  * @param {string} tag The localization tag. |  | 
|  13  * @param {(string|Array)=} opt_substitutions An optional set of substitution |  | 
|  14  *     strings corresponding to the "placeholders" attributes in messages.json. |  | 
|  15  * @return {boolean} True if the localization was successful; false otherwise. |  | 
|  16  */ |  | 
|  17 l10n.localizeElementFromTag = function(element, tag, opt_substitutions) { |  | 
|  18   var translation = chrome.i18n.getMessage(tag, opt_substitutions); |  | 
|  19   if (translation) { |  | 
|  20     element.innerHTML = translation; |  | 
|  21   } else { |  | 
|  22     console.error('Missing translation for "' + tag + '":', element); |  | 
|  23   } |  | 
|  24   return translation != null; |  | 
|  25 }; |  | 
|  26  |  | 
|  27 /** |  | 
|  28  * Localize an element by setting its innerText according to its i18n-content |  | 
|  29  * attribute, and an optional set of substitutions. |  | 
|  30  * @param {Element} element The element to localize. |  | 
|  31  * @param {(string|Array)=} opt_substitutions An optional set of substitution |  | 
|  32  *     strings corresponding to the "placeholders" attributes in messages.json. |  | 
|  33  * @return {boolean} True if the localization was successful; false otherwise. |  | 
|  34  */ |  | 
|  35 l10n.localizeElement = function(element, opt_substitutions) { |  | 
|  36   var tag = element.getAttribute('i18n-content'); |  | 
|  37   return l10n.localizeElementFromTag(element, tag, opt_substitutions); |  | 
|  38 }; |  | 
|  39  |  | 
|  40 /** |  | 
|  41  * Localize all tags with the i18n-content attribute, using i18n-data-n |  | 
|  42  * attributes to specify any placeholder substitutions. |  | 
|  43  */ |  | 
|  44 l10n.localize = function() { |  | 
|  45   var elements = document.querySelectorAll('[i18n-content]'); |  | 
|  46   for (var i = 0; i < elements.length; ++i) { |  | 
|  47     /** @type {Element} */ var element = elements[i]; |  | 
|  48     var substitutions = null; |  | 
|  49     for (var j = 1; j < 9; ++j) { |  | 
|  50       var attr = 'i18n-value-' + j; |  | 
|  51       if (element.hasAttribute(attr)) { |  | 
|  52         if (!substitutions) { |  | 
|  53           substitutions = []; |  | 
|  54         } |  | 
|  55         substitutions.push(element.getAttribute(attr)); |  | 
|  56       } else { |  | 
|  57         break; |  | 
|  58       } |  | 
|  59     } |  | 
|  60     l10n.localizeElement(element, substitutions); |  | 
|  61   } |  | 
|  62 }; |  | 
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