Fix indentation and tweak comments a bit

Bug: 50859
Change-Id: Ic827e200674fb72b8b88e362bab30662cc13e304

resources/js/ext.uls.interface.js

@@ -137,6 +137,7 @@
 
 		if ( previousLang === currentLang  ) {
 			$ulsTrigger.tipsy( { gravity: rtlPage ? 'e' : 'w' } );
+
 			return true;
 		}
 
@@ -224,10 +225,10 @@
 
 	$( document ).ready( function () {
 		mw.uls.init( function () {
-		var $ulsTrigger = $( '.uls-trigger' ),
-			$ulsSettingsTrigger,
+			var $ulsSettingsTrigger,
 				$pLang,
 				ulsOptions,
+				$ulsTrigger = $( '.uls-trigger' ),
 				rtlPage = $( 'body' ).hasClass( 'rtl' ),
 				anonMode = ( mw.user.isAnon() &&
 					!mw.config.get( 'wgULSAnonCanChangeLanguage' ) ),
@@ -240,15 +241,15 @@
 				$ulsSettingsTrigger = $( '<span>' )
 					.addClass( 'uls-settings-trigger' )
 					.attr( 'title', $.i18n( 'ext-uls-language-settings-title' ) );
-			// Append ULS cog to languages section. But make sure it is visible.
+				// Append ULS cog to languages section, but make sure it is visible.
 				$pLang.show().prepend( $ulsSettingsTrigger );
 
-			// Remove the dummy link that was added to make sure that the section appears
+				// Remove the dummy link, which was added to make sure that the section appears
 				$pLang.find( '.uls-p-lang-dummy' ).remove();
 
 				if ( !$pLang.find( 'div ul' ).children().length ) {
-				// Replace the title of the interlanguage links
-				// area if there are no interlanguage links
+					// Replace the title of the interlanguage links area
+					// if there are no interlanguage links
 					$pLang.find( 'h3' )
 						.text( mw.msg( 'uls-plang-title-languages' ) );
 
@@ -278,7 +279,9 @@
 			};
 
 			if ( ulsPosition === 'interlanguage' ) {
-			$ulsSettingsTrigger.attr( 'title', $.i18n( 'ext-uls-select-language-settings-icon-tooltip' ) );
+				$ulsSettingsTrigger.attr( {
+					title: $.i18n( 'ext-uls-select-language-settings-icon-tooltip' )
+				} );
 
 				$ulsSettingsTrigger.languagesettings( {
 					defaultModule: 'display',
@@ -289,9 +292,13 @@
 							ulsTriggerWidth = $ulsSettingsTrigger.width(),
 							ulsTriggerOffset = $ulsSettingsTrigger.offset();
 
+						// Add the callout caret triangle
+						// pointing to the trigger icon
 						this.$window.addClass( 'callout' );
 						this.$window.prepend( $caretBefore, $caretAfter );
 
+						// Calculate the positioning of the panel
+						// according to the position of the trigger icon
 						if ( rtlPage ) {
 							caretWidth = parseInt( $caretBefore.css( 'border-left-width' ), '10' );
 							this.left = ulsTriggerOffset.left - this.$window.width() - caretWidth;
@@ -322,6 +329,7 @@
 					} else {
 						$( '.uls-settings-trigger' ).click();
 					}
+
 					return false;
 				} );