Ticket #22237: customize-controls-escape-handler.diff

customize-controls.js

@@ -1193 +1193 @@
                         event.preventDefault();
                 });
 
+                // Escape Key Handler for the customizer sidebar
+                $( 'body' ).on( 'keydown', function( event ) {
+
+                        if(event.which !== 27) //esc is pressed
+                                return;
+
+                        if( $('#customize-theme-controls .accordion-section.open').length ) { // If a tab is open
+                                //Hide any open accordians.
+                                $( '#customize-theme-controls .accordion-section-content' ).slideUp( 150 );
+                                $( '#customize-theme-controls .accordion-section.open' ).removeClass('open');
+                        
+                        } else if( overlay.hasClass( 'expanded' ) ) { // If no tabs are open, esc pressed
+                                overlay.addClass( 'collapsed' ).removeClass( 'expanded' );
+                        
+                        }
+
+                });
+
                 // Bind site title display to the corresponding field.
                 if ( title.length ) {
                         $( '#customize-control-blogname input' ).on( 'input', function() {