diff options
author | wolfbeast <mcwerewolf@gmail.com> | 2018-06-04 15:50:03 +0200 |
---|---|---|
committer | wolfbeast <mcwerewolf@gmail.com> | 2018-06-04 15:50:03 +0200 |
commit | e3b7744bee37c3d4a026d2193bed5e9439c40ff3 (patch) | |
tree | f3f7b07ca9bd78bf7ac2d76dd55b61b2a8bb549e /application/basilisk/extensions/pdfjs/content/web/l10n.js | |
parent | cbce4f0b6a337f8250b62cae028f1c6d4cce51df (diff) | |
parent | 031afcafe288bf0f46c0c5caae20dd3db8bd0297 (diff) | |
download | UXP-e3b7744bee37c3d4a026d2193bed5e9439c40ff3.tar UXP-e3b7744bee37c3d4a026d2193bed5e9439c40ff3.tar.gz UXP-e3b7744bee37c3d4a026d2193bed5e9439c40ff3.tar.lz UXP-e3b7744bee37c3d4a026d2193bed5e9439c40ff3.tar.xz UXP-e3b7744bee37c3d4a026d2193bed5e9439c40ff3.zip |
Merge branch 'move-basilisk'
Diffstat (limited to 'application/basilisk/extensions/pdfjs/content/web/l10n.js')
-rw-r--r-- | application/basilisk/extensions/pdfjs/content/web/l10n.js | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/application/basilisk/extensions/pdfjs/content/web/l10n.js b/application/basilisk/extensions/pdfjs/content/web/l10n.js new file mode 100644 index 000000000..2e0684e06 --- /dev/null +++ b/application/basilisk/extensions/pdfjs/content/web/l10n.js @@ -0,0 +1,151 @@ + +'use strict'; + +// Small subset of the webL10n API by Fabien Cazenave for pdf.js extension. +(function(window) { + var gLanguage = ''; + var gExternalLocalizerServices = null; + + // fetch an l10n objects + function getL10nData(key) { + var response = gExternalLocalizerServices.getStrings(key); + var data = JSON.parse(response); + if (!data) { + console.warn('[l10n] #' + key + ' missing for [' + gLanguage + ']'); + } + return data; + } + + // replace {{arguments}} with their values + function substArguments(text, args) { + if (!args) { + return text; + } + return text.replace(/\{\{\s*(\w+)\s*\}\}/g, function(all, name) { + return (name in args ? args[name] : '{{' + name + '}}'); + }); + } + + // translate a string + function translateString(key, args, fallback) { + var i = key.lastIndexOf('.'); + var name, property; + if (i >= 0) { + name = key.substring(0, i); + property = key.substring(i + 1); + } else { + name = key; + property = 'textContent'; + } + var data = getL10nData(name); + var value = (data && data[property]) || fallback; + if (!value) { + return '{{' + key + '}}'; + } + return substArguments(value, args); + } + + // translate an HTML element + function translateElement(element) { + if (!element || !element.dataset) { + return; + } + + // get the related l10n object + var key = element.dataset.l10nId; + var data = getL10nData(key); + if (!data) { + return; + } + + // get arguments (if any) + // TODO: more flexible parser? + var args; + if (element.dataset.l10nArgs) { + try { + args = JSON.parse(element.dataset.l10nArgs); + } catch (e) { + console.warn('[l10n] could not parse arguments for #' + key + ''); + } + } + + // translate element + // TODO: security check? + for (var k in data) { + element[k] = substArguments(data[k], args); + } + } + + + // translate an HTML subtree + function translateFragment(element) { + element = element || document.querySelector('html'); + + // 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++) { + translateElement(children[i]); + } + + // translate element itself if necessary + if (element.dataset.l10nId) { + translateElement(element); + } + } + + function translateDocument() { + gLanguage = gExternalLocalizerServices.getLocale(); + + translateFragment(); + + // fire a 'localized' DOM event + var evtObject = document.createEvent('Event'); + evtObject.initEvent('localized', false, false); + evtObject.language = gLanguage; + window.dispatchEvent(evtObject); + } + + window.addEventListener('DOMContentLoaded', function() { + if (gExternalLocalizerServices) { + translateDocument(); + } + // ... else see setExternalLocalizerServices below + }); + + // Public API + document.mozL10n = { + // get a localized string + get: translateString, + + // get the document language + getLanguage: function() { + return gLanguage; + }, + + // get the direction (ltr|rtl) of the current language + getDirection: function() { + // http://www.w3.org/International/questions/qa-scripts + // Arabic, Hebrew, Farsi, Pashto, Urdu + var rtlList = ['ar', 'he', 'fa', 'ps', 'ur']; + + // use the short language code for "full" codes like 'ar-sa' (issue 5440) + var shortCode = gLanguage.split('-')[0]; + + return (rtlList.indexOf(shortCode) >= 0) ? 'rtl' : 'ltr'; + }, + + setExternalLocalizerServices: function (externalLocalizerServices) { + gExternalLocalizerServices = externalLocalizerServices; + + // ... in case if we missed DOMContentLoaded above. + if (window.document.readyState === 'interactive' || + window.document.readyState === 'complete') { + translateDocument(); + } + }, + + // translate an element or document fragment + translate: translateFragment + }; +})(this); |