Add translation file caching, show file read error (if any) and fix a typo in the Finnish translation.

app/classes/shared/translation.py

@@ -11,14 +11,21 @@ logger = logging.getLogger(__name__)
 class Translation():
     def __init__(self):
         self.translations_path = os.path.join(helper.root_dir, 'app', 'translations')
+        self.cached_translation = None
+        self.cached_translation_lang = None
     def translate(self, page, word):
         translated_word = None
         lang = helper.get_setting('language')
         fallback_lang = 'en_EN'
 
-        translated_word = \
-            self.translate_inner(page, word, lang) or \
-            self.translate_inner(page, word, fallback_lang)
+        lang_file_exists = helper.check_file_exists(
+            os.path.join(
+                self.translations_path, lang + '.json'
+            )
+        )
+
+        translated_word = self.translate_inner(page, word, lang) \
+            if lang_file_exists else self.translate_inner(page, word, fallback_lang)
 
         if translated_word:
             if isinstance(translated_word, dict): return json.dumps(translated_word)
@@ -31,8 +38,17 @@ class Translation():
             lang + '.json'
         )
         try:
-            with open(lang_file, 'r') as f:
-                data = json.load(f)
+            if not self.cached_translation:
+                with open(lang_file, 'r') as f:
+                    data = json.load(f)
+                    self.cached_translation = data
+            elif self.cached_translation_lang != lang:
+                with open(lang_file, 'r') as f:
+                    data = json.load(f)
+                    self.cached_translation = data
+                    self.cached_translation_lang = lang
+            else:
+                data = self.cached_translation
             
             try:
                 translated_page = data[page]

app/frontend/templates/panel/server_files.html

@@ -194,6 +194,7 @@
                 }
               </style>
               <div class="col-md-6 col-sm-12">
+                <h2 id="fileError"></h2>
                 <div id="editorParent">
                   {{ translate('serverFiles', 'editingFile') }} <span id="editingFile"></span>
                   <div id="editor" onresize="editor.resize()" style="resize: both;width: 100%;">file_contents</div>
@@ -344,10 +345,13 @@
           console.log('Got File Contents From Server');
           json = JSON.parse(data)
           if (json.error) {
-            $('#editorParent').toggle(false)
+            $('#editorParent').toggle(false) // hide
+            $('#fileError').toggle(true)     // show
+            $('#fileError').text("{{ translate('serverFiles', 'fileReadError') }}: " + json.error) // show error
             editor.blur()
           } else {
-            $('#editorParent').toggle(true)
+            $('#editorParent').toggle(true) // show
+            $('#fileError').toggle(false)   // hide
             setFileName(event.target.innerText);
             editor.session.setValue(json.content);
           }
@@ -376,7 +380,8 @@
     }
 
     setFileName();
-    $('#editorParent').toggle(false)
+    $('#editorParent').toggle(false) // show
+    $('#fileError').toggle(false)    // hide
     editor.blur()
 
     function setMode (extension) {

app/translations/en_EN.json

@@ -170,7 +170,8 @@
         "yesDelete": "Yes, I understand the consequences",
         "noDelete": "No",
         "unsupportedLanguage": "Warning: This is not a supported file type",
-        "keybindings": "Keybindings"
+        "keybindings": "Keybindings",
+        "fileReadError": "File read error"
     },
     "serverConfig": {
         "serverName": "Server Name",

app/translations/fi_FI.json

@@ -166,11 +166,12 @@
         "createDirQuestion": "Minkä nimen haluat uudelle hakemistolle?",
         "renameItemQuestion": "Mikä uuden nimen pitäisi olla?",
         "deleteItemQuestion": "Haluatko varmasti poistaa \" + name + \"?",
-        "deleteItemQuestionMessage": "Olet poistamassa \\\"\" + path + \"\\\"!<br/><br/>Tämä toiminta on peruuttamaton ja se menetetään ikuisesti!",
+        "deleteItemQuestionMessage": "Olet poistamassa \\\"\" + path + \"\\\"!<br/><br/>Tämä toiminto on peruuttamaton ja se menetetään ikuisesti!",
         "yesDelete": "Kyllä, ymmärrän seuraukset",
         "noDelete": "En",
         "unsupportedLanguage": "Varoitus: Tätä tiedostotyyppiä ei tueta",
-        "keybindings": "Pikanäppäimet"
+        "keybindings": "Pikanäppäimet",
+        "fileReadError": "Tiedoston lukuvirhe"
     },
     "serverConfig": {
         "serverName": "Palvelimen nimi",