Customize: Strip zero padding when setting month to prevent de-selection; add zero-padding for `number` input fields when blurring.

Amends [42042].
See #42373.
Fixes #42392.

Built from https://develop.svn.wordpress.org/trunk@42104


git-svn-id: http://core.svn.wordpress.org/trunk@41933 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/customize-controls.js

@@ -5577,6 +5577,13 @@
 						control.notifications.remove( 'invalid_date' );
 					}
 				} ) );
+
+				// Add zero-padding when blurring field.
+				input.on( 'blur', _.debounce( function() {
+					if ( ! control.invalidDate ) {
+						control.populateDateInputs();
+					}
+				} ) );
 			} );
 
 			control.inputElements.month.bind( control.updateDaysForMonth );
@@ -5822,8 +5829,27 @@
 			}
 
 			_.each( control.inputElements, function( element, component ) {
-				if ( 'meridian' === component || parseInt( parsed[ component ], 10 ) !== parseInt( element(), 10 ) ) {
+				var value = parsed[ component ]; // This will be zero-padded string.
+
+				// Set month and meridian regardless of focused state since they are dropdowns.
+				if ( 'month' === component || 'meridian' === component ) {
+
+					// Options in dropdowns are not zero-padded.
+					value = value.replace( /^0/, '' );
+
+					element.set( value );
+				} else {
+
+					value = parseInt( value, 10 );
+					if ( ! element.element.is( document.activeElement ) ) {
+
+						// Populate element with zero-padded value if not focused.
 						element.set( parsed[ component ] );
+					} else if ( value !== parseInt( element(), 10 ) ) {
+
+						// Forcibly update the value if its underlying value changed, regardless of zero-padding.
+						element.set( String( value ) );
+					}
 				}
 			} );
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-RC1-42056';
+$wp_version = '4.9-RC1-42104';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.