Dialog: Properly handle empty title with jQuery git

jQuery now returns `null` for empty attributes instead of `undefined`.

Ref gh-1516

(cherry picked from commit fdbb85be397b1d1e632ead53a53c57d30739e70c)

diff --git a/ui/dialog.js b/ui/dialog.js
index c48d76db3aa0966987de981da910672bd6ec319c..fc9e3fcea9bbac4c3a433edfc5d39705208e140a 100644 (file)
--- a/ui/dialog.js
+++ b/ui/dialog.js
@@ -107,7 +107,9 @@ return $.widget( "ui.dialog", {
                        index: this.element.parent().children().index( this.element )
                };
                this.originalTitle = this.element.attr( "title" );
-               this.options.title = this.options.title || this.originalTitle;
+               if ( this.options.title == null && this.originalTitle != null ) {
+                       this.options.title = this.originalTitle;
+               }
 
                this._createWrapper();
 
@@ -422,10 +424,11 @@ return $.widget( "ui.dialog", {
        },
 
        _title: function( title ) {
-               if ( !this.options.title ) {
+               if ( this.options.title ) {
+                       title.text( this.options.title );
+               } else {
                        title.html( " " );
                }
-               title.text( this.options.title );
        },
 
        _createButtonPane: function() {