Edit file File name : custom-background.js Content :/** * @output wp-admin/js/custom-background.js */ /* global ajaxurl */ /** * Registers all events for customizing the background. * * @since 3.0.0 * * @requires jQuery */ (function($) { $( function() { var frame, bgImage = $( '#custom-background-image' ); /** * Instantiates the WordPress color picker and binds the change and clear events. * * @since 3.5.0 * * @return {void} */ $('#background-color').wpColorPicker({ change: function( event, ui ) { bgImage.css('background-color', ui.color.toString()); }, clear: function() { bgImage.css('background-color', ''); } }); /** * Alters the background size CSS property whenever the background size input has changed. * * @since 4.7.0 * * @return {void} */ $( 'select[name="background-size"]' ).on( 'change', function() { bgImage.css( 'background-size', $( this ).val() ); }); /** * Alters the background position CSS property whenever the background position input has changed. * * @since 4.7.0 * * @return {void} */ $( 'input[name="background-position"]' ).on( 'change', function() { bgImage.css( 'background-position', $( this ).val() ); }); /** * Alters the background repeat CSS property whenever the background repeat input has changed. * * @since 3.0.0 * * @return {void} */ $( 'input[name="background-repeat"]' ).on( 'change', function() { bgImage.css( 'background-repeat', $( this ).is( ':checked' ) ? 'repeat' : 'no-repeat' ); }); /** * Alters the background attachment CSS property whenever the background attachment input has changed. * * @since 4.7.0 * * @return {void} */ $( 'input[name="background-attachment"]' ).on( 'change', function() { bgImage.css( 'background-attachment', $( this ).is( ':checked' ) ? 'scroll' : 'fixed' ); }); /** * Binds the event for opening the WP Media dialog. * * @since 3.5.0 * * @return {void} */ $('#choose-from-library-link').on( 'click', function( event ) { var $el = $(this); event.preventDefault(); // If the media frame already exists, reopen it. if ( frame ) { frame.open(); return; } // Create the media frame. frame = wp.media.frames.customBackground = wp.media({ // Set the title of the modal. title: $el.data('choose'), // Tell the modal to show only images. library: { type: 'image' }, // Customize the submit button. button: { // Set the text of the button. text: $el.data('update'), /* * Tell the button not to close the modal, since we're * going to refresh the page when the image is selected. */ close: false } }); /** * When an image is selected, run a callback. * * @since 3.5.0 * * @return {void} */ frame.on( 'select', function() { // Grab the selected attachment. var attachment = frame.state().get('selection').first(); var nonceValue = $( '#_wpnonce' ).val() || ''; // Run an Ajax request to set the background image. $.post( ajaxurl, { action: 'set-background-image', attachment_id: attachment.id, _ajax_nonce: nonceValue, size: 'full' }).done( function() { // When the request completes, reload the window. window.location.reload(); }); }); // Finally, open the modal. frame.open(); }); }); })(jQuery); Save