From ea0c8e8a9fdc1cbcd33ab344c02df490f13f840e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ale=C5=A1=20Smodi=C5=A1?= <aless@guru.si>
Date: Sat, 26 Sep 2015 15:23:26 +0200
Subject: Reimplemented translation support: leave the DOM structure intact,
 upon display language switch only replace language-dependent content.

---
 js/codeq/translation.js | 71 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 js/codeq/translation.js

(limited to 'js/codeq/translation.js')

diff --git a/js/codeq/translation.js b/js/codeq/translation.js
new file mode 100644
index 0000000..af39cdc
--- /dev/null
+++ b/js/codeq/translation.js
@@ -0,0 +1,71 @@
+(function () {
+
+    var dicts = {},
+        translateElement = function (jqElt, lang) {
+            var dictionaryKey = jqElt.data('dict'),
+                translationKey = jqElt.data('tkey'),
+                dict = dicts[dictionaryKey],
+                translations, html, key;
+            if (!dict) {
+                codeq.log.error('Cannot find translation dictionary ' + dictionaryKey);
+                return;
+            }
+            if (!(typeof translationKey === 'number' || typeof translationKey === 'string')) {
+                codeq.log.error('Cannot find the element\'s translation key, dictionary: ' + dictionaryKey);
+                return;
+            }
+            translations = dict[translationKey];
+            if (!translations) {
+                codeq.log.error('Translation key ' + translationKey + ' is missing from dictionary ' + dictionaryKey);
+                return;
+            }
+            html = translations[lang];
+            if (!html) {
+                html = translations['en'];
+                if (html) {
+                    codeq.log.info('There is no translation in language ' + lang + ' for key ' + translationKey + ' in dictionary ' + dictionaryKey + ', defaulting to language en');
+                }
+                else {
+                    for (key in translations) {
+                        if (!translations.hasOwnProperty(key)) continue;
+                        html = translations[key];
+                        if (!html) continue;
+                        codeq.log.info('There is no translation in languages ' + lang + ' and en for key ' + translationKey + ' in dictionary ' + dictionaryKey + ', defaulting to language ' + key);
+                        break;
+                    }
+                    if (!html) {
+                        codeq.log.warn('There is no translation in any language for key ' + translationKey + ' in dictionary ' + dictionaryKey + ', leaving empty');
+                        return;
+                    }
+                }
+            }
+            jqElt.html(html);
+        },
+        translateDocument = function (lang) {
+            $('.translatable').each(function () {
+                translateElement($(this), lang);
+            });
+        };
+
+    // Translate the whole document when the user switches the display language
+    codeq.on('langchange', function (args) {
+        translateDocument(args.lang);
+    });
+
+    // ================================================================================
+    // The module API
+    // ================================================================================
+
+    codeq.tr = {
+        'registerDictionary': function (name, dict) {
+            dicts[name] = dict;
+        },
+
+        'translateDom': function (jqTopElt) {
+            var lang = codeq.getLang();
+            jqTopElt.find('.translatable').each(function () {
+                translateElement($(this), lang);
+            });
+        }
+    };
+})();
\ No newline at end of file
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