Media: debounce the media grid search, avoiding duplicate requests.

Add a debounce wrapper to the media grid search handler. The search callback is now fired after a 300 ms typing pause.

Remove redundant handlers for 'search' and 'change', preventing multiple/duplicate search callbacks.

Props certainstrings, joemcgill, Kelderic, batmoo.
Fixes #38911.

Built from https://develop.svn.wordpress.org/trunk@40060


git-svn-id: http://core.svn.wordpress.org/trunk@39997 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/media-views.js

@@ -7085,9 +7085,7 @@ Search = wp.media.View.extend({
 
 	events: {
 		'input':  'search',
-		'keyup':  'search',
-		'change': 'search',
-		'search': 'search'
+		'keyup':  'search'
 	},
 
 	/**
@@ -7098,13 +7096,13 @@ Search = wp.media.View.extend({
 		return this;
 	},
 
-	search: function( event ) {
+	search: _.debounce( function( event ) {
 		if ( event.target.value ) {
 			this.model.set( 'search', event.target.value );
 		} else {
 			this.model.unset('search');
 		}
-	}
+	}, 300 )
 });
 
 module.exports = Search;

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40059';
+$wp_version = '4.8-alpha-40060';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.