Avoid loading of jquery.i18n and messages until trigger clicked

Use RL for trigger tooltip messages to avoid using jquery.i18n just
to display the triggers. Reordered dependencies so that messages
are loaded for the setting panels and ime menu.

Change-Id: Ic9518f7b63699542deb02a413e03c28344c99fa4

resources/js/ext.uls.init.js

@@ -40,11 +40,6 @@
 		}() );
 	}
 
-
-	var jsonLoader = null,
-		initialized = false,
-		currentLang = mw.config.get( 'wgUserLanguage' );
-
 	mw.uls = mw.uls || {};
 	mw.uls.previousLanguagesCookie = 'uls-previous-languages';
 	mw.uls.previousLanguageAutonymCookie = 'uls-previous-language-autonym';
@@ -230,33 +225,19 @@
 	}
 
 	/**
-	 * Initialize ULS front-end and its i18n.
+	 * Initialize ULS front-end if browser is supported.
 	 *
 	 * @param {Function} callback callback function to be called after initialization.
 	 */
 	mw.uls.init = function ( callback ) {
-
-		callback = callback || $.noop;
-
-		if ( initialized ) {
-			callback.call( this );
-
-			return;
-		}
-
 		if ( !isBrowserSupported() ) {
 			$( '#pt-uls' ).hide();
 
 			return;
 		}
 
-		if ( !jsonLoader ) {
-			jsonLoader = mw.uls.loadLocalization( currentLang );
-		} else {
-			jsonLoader.done( function () {
-				initialized = true;
-			} );
-			jsonLoader.done( callback );
+		if ( callback ) {
+			callback.call( this );
 		}
 	};
 

resources/js/ext.uls.interface.js

@@ -231,7 +231,7 @@
 				// Get the html of the link by wrapping it in div first
 				link = $( '<div>' ).html( link ).html();
 
-				return $.i18n( 'ext-uls-undo-language-tooltip-text', link );
+				return mw.msg( 'ext-uls-undo-language-tooltip-text', link );
 			}
 		} );
 
@@ -321,9 +321,7 @@
 				// The interlanguage links section
 				$pLang = $( '#p-lang' );
 				// Add an element near the interlanguage links header
-				$ulsTrigger = $( '<span>' )
-					.addClass( 'uls-settings-trigger' )
-					.attr( 'title', $.i18n( 'ext-uls-language-settings-title' ) );
+				$ulsTrigger = $( '<span>' ).addClass( 'uls-settings-trigger' );
 				// Append ULS cog to languages section, but make sure it is visible.
 				$pLang.show().prepend( $ulsTrigger );
 				// Take care of any other elements with this class.
@@ -344,7 +342,7 @@
 				}
 
 				$ulsTrigger.attr( {
-					title: $.i18n( 'ext-uls-select-language-settings-icon-tooltip' )
+					title: mw.msg( 'ext-uls-select-language-settings-icon-tooltip' )
 				} );
 
 				$ulsTrigger.on( 'click', function ( e, eventParams ) {
@@ -461,7 +459,7 @@
 
 			// Bind language settings to preferences page link
 			$( '#uls-preferences-link' )
-				.text( $.i18n( 'ext-uls-language-settings-preferences-link' ) )
+				.text( mw.msg( 'ext-uls-language-settings-preferences-link' ) )
 				.click( function () {
 					$ulsTrigger.trigger( 'click', {
 						source: 'preferences'