696 lines
19 KiB
JavaScript
696 lines
19 KiB
JavaScript
/**
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* Contains the postboxes logic, opening and closing postboxes, reordering and saving
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* the state and ordering to the database.
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*
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* @since 2.5.0
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* @requires jQuery
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* @output wp-admin/js/postbox.js
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*/
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/* global ajaxurl, postboxes */
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( function( $ ) {
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var $document = $( document ),
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$body = $( 'body' ),
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__ = wp.i18n.__;
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/**
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* This object contains all function to handle the behaviour of the post boxes. The post boxes are the boxes you see
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* around the content on the edit page.
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*
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* @since 2.7.0
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*
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* @namespace postboxes
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*
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* @type {Object}
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*/
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window.postboxes = {
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/**
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* Handles a click on either the postbox heading or the postbox open/close icon.
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*
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* Opens or closes the postbox. Expects `this` to equal the clicked element.
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* Calls postboxes.pbshow if the postbox has been opened, calls postboxes.pbhide
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* if the postbox has been closed.
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*
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* @since 4.4.0
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*
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* @memberof postboxes
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*
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* @fires postboxes#postbox-toggled
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*
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* @return {void}
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*/
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handle_click : function () {
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var $el = $( this ),
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p = $el.closest( '.postbox' ),
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id = p.attr( 'id' ),
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ariaExpandedValue;
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if ( 'dashboard_browser_nag' === id ) {
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return;
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}
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p.toggleClass( 'closed' );
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ariaExpandedValue = ! p.hasClass( 'closed' );
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if ( $el.hasClass( 'handlediv' ) ) {
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// The handle button was clicked.
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$el.attr( 'aria-expanded', ariaExpandedValue );
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} else {
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// The handle heading was clicked.
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$el.closest( '.postbox' ).find( 'button.handlediv' )
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.attr( 'aria-expanded', ariaExpandedValue );
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}
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if ( postboxes.page !== 'press-this' ) {
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postboxes.save_state();
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}
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if ( id ) {
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if ( !p.hasClass('closed') && $.isFunction( postboxes.pbshow ) ) {
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postboxes.pbshow( id );
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} else if ( p.hasClass('closed') && $.isFunction( postboxes.pbhide ) ) {
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postboxes.pbhide( id );
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}
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}
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/**
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* Fires when a postbox has been opened or closed.
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*
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* Contains a jQuery object with the relevant postbox element.
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*
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* @since 4.0.0
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* @ignore
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*
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* @event postboxes#postbox-toggled
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* @type {Object}
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*/
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$document.trigger( 'postbox-toggled', p );
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},
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/**
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* Handles clicks on the move up/down buttons.
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*
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* @since 5.5.0
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*
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* @return {void}
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*/
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handleOrder: function() {
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var button = $( this ),
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postbox = button.closest( '.postbox' ),
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postboxId = postbox.attr( 'id' ),
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postboxesWithinSortables = postbox.closest( '.meta-box-sortables' ).find( '.postbox:visible' ),
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postboxesWithinSortablesCount = postboxesWithinSortables.length,
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postboxWithinSortablesIndex = postboxesWithinSortables.index( postbox ),
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firstOrLastPositionMessage;
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if ( 'dashboard_browser_nag' === postboxId ) {
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return;
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}
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// If on the first or last position, do nothing and send an audible message to screen reader users.
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if ( 'true' === button.attr( 'aria-disabled' ) ) {
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firstOrLastPositionMessage = button.hasClass( 'handle-order-higher' ) ?
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__( 'The box is on the first position' ) :
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__( 'The box is on the last position' );
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wp.a11y.speak( firstOrLastPositionMessage );
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return;
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}
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if ( button.hasClass( 'handle-order-higher' ) ) {
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// Move a postbox up.
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// If the box is first within a sortable area, move it to the previous sortable area.
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if ( 0 === postboxWithinSortablesIndex ) {
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postboxes.handleOrderBetweenSortables( 'previous', button, postbox );
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return;
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}
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postbox.prevAll( '.postbox:visible' ).eq( 0 ).before( postbox );
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button.focus();
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postboxes.updateOrderButtonsProperties();
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postboxes.save_order();
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} else if ( button.hasClass( 'handle-order-lower' ) ) {
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// Move a postbox down.
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// If the box is last within a sortable area, move it to the next sortable area.
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if ( postboxWithinSortablesIndex + 1 === postboxesWithinSortablesCount ) {
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postboxes.handleOrderBetweenSortables( 'next', button, postbox );
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return;
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}
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postbox.nextAll( '.postbox:visible' ).eq( 0 ).after( postbox );
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button.focus();
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postboxes.updateOrderButtonsProperties();
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postboxes.save_order();
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}
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},
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/**
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* Moves postboxes between the sortables areas.
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*
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* @since 5.5.0
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*
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* @param {string} position The "previous" or "next" sortables area.
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* @param {Object} button The jQuery object representing the button that was clicked.
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* @param {Object} postbox The jQuery object representing the postbox to be moved.
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*
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* @return {void}
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*/
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handleOrderBetweenSortables: function( position, button, postbox ) {
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var closestSortablesId = button.closest( '.meta-box-sortables' ).attr( 'id' ),
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sortablesIds = [],
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sortablesIndex,
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detachedPostbox;
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// Get the list of sortables within the page.
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$( '.meta-box-sortables:visible' ).each( function() {
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sortablesIds.push( $( this ).attr( 'id' ) );
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});
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// Return if there's only one visible sortables area, e.g. in the block editor page.
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if ( 1 === sortablesIds.length ) {
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return;
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}
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// Find the index of the current sortables area within all the sortable areas.
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sortablesIndex = $.inArray( closestSortablesId, sortablesIds );
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// Detach the postbox to be moved.
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detachedPostbox = postbox.detach();
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// Move the detached postbox to its new position.
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if ( 'previous' === position ) {
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$( detachedPostbox ).appendTo( '#' + sortablesIds[ sortablesIndex - 1 ] );
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}
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if ( 'next' === position ) {
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$( detachedPostbox ).prependTo( '#' + sortablesIds[ sortablesIndex + 1 ] );
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}
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postboxes._mark_area();
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button.focus();
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postboxes.save_order();
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},
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showArrangeArrows: function() {
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$( '.postbox-arrange-arrow' )
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.attr( 'aria-disabled', 'false' )
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.removeClass( 'hidden' );
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postboxes._mark_area();
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},
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hideArrangeArrows: function() {
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$( '.postbox-arrange-arrow' )
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.attr( 'aria-disabled', 'true' )
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.addClass( 'hidden' );
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postboxes._mark_area();
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},
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/**
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* Update the move buttons properties depending on the postbox position.
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*
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* @since 5.5.0
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*
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* @return {void}
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*/
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updateOrderButtonsProperties: function() {
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var elements = $( '.postbox:visible' ),
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containers = $( '.meta-box-sortables:visible' )
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.not( '.unused-container' )
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.filter( function( i, container ) {
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if ( i > 0 && container.clientHeight === 0 ) {
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return false;
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}
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return true;
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} );
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// When there's only one "sortables" area (e.g. in the block editor)
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// and only one visible postbox, hide the buttons.
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if ( containers.length === 1 && elements.length === 1 ) {
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$( '.postbox-arrange-arrow' ).addClass( 'hidden' ).attr( 'aria-disabled', 'true' );
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return;
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}
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// Reset.
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if ( $body.hasClass( 'screen-options-open' ) ) {
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$( '.postbox-arrange-arrow' ).removeClass( 'hidden' ).attr( 'aria-disabled', 'false' );
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}
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if ( elements.first().parent()[0] === containers.first()[0] ) {
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// Set an aria-disabled=true attribute on the first visible "move higher" buttons.
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elements.first().find( '.handle-order-higher' ).attr( 'aria-disabled', 'true' );
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}
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if ( elements.last().parent()[0] === containers.last()[0] ) {
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// Set an aria-disabled=true attribute on the last visible "move lower" buttons.
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elements.last().find( '.handle-order-lower' ).attr( 'aria-disabled', 'true' );
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}
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},
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/**
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* Adds event handlers to all postboxes and screen option on the current page.
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*
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* @since 2.7.0
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*
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* @memberof postboxes
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*
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* @param {string} page The page we are currently on.
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* @param {Object} [args]
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* @param {Function} args.pbshow A callback that is called when a postbox opens.
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* @param {Function} args.pbhide A callback that is called when a postbox closes.
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* @return {void}
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*/
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add_postbox_toggles: function ( page, args ) {
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var $handles = $( '.postbox .hndle, .postbox .handlediv' ),
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$orderButtons = $( '.postbox .postbox-arrange-arrow' );
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this.page = page;
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this.init( page, args );
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$handles.on( 'click.postboxes', this.handle_click );
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// Handle the order of the postboxes.
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$orderButtons.on( 'click.postboxes', this.handleOrder );
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/**
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* @since 2.7.0
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*/
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$( '.postbox .hndle a' ).on( 'click', function( event ) {
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event.stopPropagation();
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});
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/**
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* Hides a postbox.
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*
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* Event handler for the postbox dismiss button. After clicking the button
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* the postbox will be hidden.
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*
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* As of WordPress 5.5, this is only used for the browser update nag.
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*
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* @since 3.2.0
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*
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* @return {void}
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*/
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$( '.postbox a.dismiss' ).on( 'click.postboxes', function( event ) {
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var hide_id = $( this ).parents( '.postbox' ).attr( 'id' ) + '-hide';
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event.preventDefault();
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$( '#' + hide_id ).prop( 'checked', false ).triggerHandler( 'click' );
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});
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/**
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* Hides the postbox element
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*
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* Event handler for the screen options checkboxes. When a checkbox is
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* clicked this function will hide or show the relevant postboxes.
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*
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* @since 2.7.0
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* @ignore
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*
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* @fires postboxes#postbox-toggled
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*
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* @return {void}
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*/
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$( '.hide-postbox-tog' ).on( 'click.postboxes', function() {
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var $el = $( this ),
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boxId = $el.val(),
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$postbox = $( '#' + boxId );
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if ( $el.prop( 'checked' ) ) {
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$postbox.show();
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if ( $.isFunction( postboxes.pbshow ) ) {
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postboxes.pbshow( boxId );
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}
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} else {
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$postbox.hide();
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if ( $.isFunction( postboxes.pbhide ) ) {
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postboxes.pbhide( boxId );
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}
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}
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postboxes.save_state();
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postboxes._mark_area();
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/**
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* @since 4.0.0
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* @see postboxes.handle_click
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*/
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$document.trigger( 'postbox-toggled', $postbox );
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});
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/**
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* Changes the amount of columns based on the layout preferences.
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*
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* @since 2.8.0
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*
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* @return {void}
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*/
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$( '.columns-prefs input[type="radio"]' ).on( 'click.postboxes', function() {
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var number = parseInt( $( this ).val(), 10 );
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if ( number ) {
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postboxes._pb_edit( number );
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postboxes.save_order();
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}
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});
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// Enable dragging/arranging of postboxes and show drop placeholders when Screen Options tab is open.
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// If there is no Screen Options tab on the screen, dragging/arranging is enabled on page load.
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$document.on( 'screen:options:open', function() {
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$body.addClass( 'screen-options-open' );
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postboxes.initializeSortable();
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postboxes.showArrangeArrows();
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} ).on( 'screen:options:close', function() {
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$body.removeClass( 'screen-options-open' );
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$( '.meta-box-sortables' ).sortable( 'destroy' );
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postboxes.hideArrangeArrows();
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} );
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},
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initializeSortable: function() {
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var hasScreenOptions = $document.find( '#screen-options-wrap' ).length > 0;
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$( '.meta-box-sortables' ).sortable( {
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placeholder: 'sortable-placeholder',
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connectWith: '.meta-box-sortables',
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items: '.postbox',
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handle: '.hndle',
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cursor: 'move',
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delay: ( $body.hasClass( 'mobile' ) ? 200 : 0 ),
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distance: 2,
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tolerance: 'pointer',
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opacity: 0.65,
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forcePlaceholderSize: true,
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containment: '#wpwrap',
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helper: function( event, element ) {
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/* `helper: 'clone'` is equivalent to `return element.clone();`
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* Cloning a checked radio and then inserting that clone next to the original
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* radio unchecks the original radio (since only one of the two can be checked).
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* We get around this by renaming the helper's inputs' name attributes so that,
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* when the helper is inserted into the DOM for the sortable, no radios are
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* duplicated, and no original radio gets unchecked.
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*/
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return element.clone()
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.find( ':input' )
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.attr( 'name', function( i, currentName ) {
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return 'sort_' + parseInt( Math.random() * 100000, 10 ).toString() + '_' + currentName;
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} )
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.end();
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},
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start: function() {
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// Pretend the Screen Options tab exists.
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if ( ! hasScreenOptions ) {
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$body.addClass( 'screen-options-open' );
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}
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// Refresh the cached positions of all the sortable items so that the min-height set while dragging works.
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$( '.meta-box-sortables' ).sortable( 'refreshPositions' );
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},
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stop: function() {
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var $el = $( this );
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if ( ! hasScreenOptions ) {
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$body.removeClass( 'screen-options-open' );
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}
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if ( $el.find( '#dashboard_browser_nag' ).is( ':visible' ) && 'dashboard_browser_nag' != this.firstChild.id ) {
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$el.sortable( 'cancel' );
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return;
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}
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postboxes._mark_area();
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postboxes.save_order();
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},
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receive: function( event, ui ) {
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if ( 'dashboard_browser_nag' == ui.item[0].id ) {
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$( ui.sender ).sortable( 'cancel' );
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}
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$document.trigger( 'postbox-moved', ui.item );
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}
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});
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},
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/**
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* Initializes the postboxes, mainly their sortable behaviour.
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*
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* @since 2.7.0
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*
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* @memberof postboxes
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*
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* @param {string} page The page we are currently on. Not used, here for back-compat.
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* @param {Object} [args={}] The arguments for the postbox initializer.
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* @param {Function} args.pbshow A callback that is called when a postbox opens.
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* @param {Function} args.pbhide A callback that is called when a postbox
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* closes.
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*
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* @return {void}
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*/
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init: function( page, args ) {
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$.extend( this, args || {} );
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if ( $body.hasClass( 'mobile' ) ) {
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$body.on( 'orientationchange.postboxes', function() { postboxes._pb_change(); } );
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this._pb_change();
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}
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// Set the "arrange" (up/down) buttons properties on page load...
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this.updateOrderButtonsProperties();
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// ...and keep updating it when postboxes are added or removed by using the checkboxes in Screen Options.
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$document.on( 'postbox-toggled', this._mark_area );
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// Set the handle buttons `aria-expanded` attribute initial value on page load.
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$( '.postbox .handlediv' ).each( function () {
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var $el = $( this );
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$el.attr( 'aria-expanded', ! $el.closest( '.postbox' ).hasClass( 'closed' ) );
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});
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// Init sortables now if there is no Screen Options tab.
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// Otherwise init when Screen Options are open.
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if ( ! $document.find( '#screen-options-wrap' ).length ) {
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this.initializeSortable();
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this.showArrangeArrows();
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}
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},
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/**
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* Saves the state of the postboxes to the server.
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*
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* It sends two lists, one with all the closed postboxes, one with all the
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* hidden postboxes.
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*
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* @since 2.7.0
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*
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* @memberof postboxes
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*
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* @param {string} page The page we are currently on.
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* @return {void}
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*/
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save_state : function() {
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var closed, hidden;
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// Return on the nav-menus.php screen, see #35112.
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if ( 'nav-menus' === postboxes.page ) {
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return;
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}
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closed = $( '.postbox' ).filter( '.closed' ).map( function() { return this.id; } ).get().join( ',' );
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hidden = $( '.postbox' ).filter( ':hidden' ).map( function() { return this.id; } ).get().join( ',' );
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$.post( ajaxurl, {
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action: 'closed-postboxes',
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closed: closed,
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hidden: hidden,
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closedpostboxesnonce: $( '#closedpostboxesnonce' ).val(),
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page: postboxes.page
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});
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},
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/**
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* Saves the order of the postboxes to the server.
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*
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* Sends a list of all postboxes inside a sortable area to the server.
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*
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* @since 2.8.0
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*
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* @memberof postboxes
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*
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* @return {void}
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*/
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save_order : function() {
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var postVars = {
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action: 'meta-box-order',
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_ajax_nonce: $( '#meta-box-order-nonce' ).val(),
|
|
page_columns: $( '.columns-prefs input:checked' ).val() || 0,
|
|
page: postboxes.page
|
|
};
|
|
|
|
$( '.meta-box-sortables' ).each( function() {
|
|
postVars[ 'order[' + this.id.split( '-' )[0] + ']' ] = $( this ).sortable( 'toArray' ).join( ',' );
|
|
} );
|
|
|
|
$.post(
|
|
ajaxurl,
|
|
postVars,
|
|
function( response ) {
|
|
if ( response.success ) {
|
|
wp.a11y.speak( __( 'The boxes order has been saved.' ) );
|
|
}
|
|
}
|
|
);
|
|
},
|
|
|
|
/**
|
|
* Marks empty postbox areas.
|
|
*
|
|
* Adds a message to empty sortable areas on the dashboard page. Also adds a
|
|
* border around the side area on the post edit screen if there are no postboxes
|
|
* present.
|
|
*
|
|
* @since 3.3.0
|
|
* @access private
|
|
*
|
|
* @memberof postboxes
|
|
*
|
|
* @return {void}
|
|
*/
|
|
_mark_area : function() {
|
|
var elements = $( '.postbox:visible' ),
|
|
containers = $( '.meta-box-sortables:visible' );
|
|
|
|
containers.each( function( index, element ) {
|
|
var container = $( element );
|
|
|
|
if ( container.children( '.postbox:visible' ).length ) {
|
|
container
|
|
.removeClass( 'empty-container unused-container' )
|
|
.removeAttr( 'data-emptystring' );
|
|
} else {
|
|
container.addClass( 'empty-container' );
|
|
|
|
if ( elements.length < 1 ) {
|
|
// Edge case: all postboxes are disabled.
|
|
// Mark the first container as empty, the rest as unused.
|
|
if ( index === 0 ) {
|
|
container.attr( 'data-emptystring', __( 'Enable screen elements from the Screen Options menu' ) );
|
|
} else {
|
|
container.addClass( 'unused-container' );
|
|
}
|
|
|
|
// Break the loop.
|
|
return false;
|
|
}
|
|
|
|
container.attr( 'data-emptystring', __( 'Drag screen elements here' ) );
|
|
|
|
if ( elements.length <= index ) {
|
|
// If there are not enough elements (postboxes) to add to all containers,
|
|
// (and this container is empty, as tested above)
|
|
// mark it as "unused".
|
|
container.addClass( 'unused-container' );
|
|
} else {
|
|
container.removeClass( 'unused-container' );
|
|
}
|
|
}
|
|
});
|
|
|
|
// Refresh up/down arrows attributes.
|
|
if ( $body.hasClass( 'screen-options-open' ) ) {
|
|
postboxes.updateOrderButtonsProperties();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Changes the amount of columns on the post edit page.
|
|
*
|
|
* @since 3.3.0
|
|
* @access private
|
|
*
|
|
* @memberof postboxes
|
|
*
|
|
* @fires postboxes#postboxes-columnchange
|
|
*
|
|
* @param {number} n The amount of columns to divide the post edit page in.
|
|
* @return {void}
|
|
*/
|
|
_pb_edit : function( n ) {
|
|
var el = $( '.metabox-holder' ).get( 0 );
|
|
|
|
if ( el ) {
|
|
el.className = el.className.replace( /columns-\d+/, 'columns-' + n );
|
|
}
|
|
|
|
/**
|
|
* Fires when the amount of columns on the post edit page has been changed.
|
|
*
|
|
* @since 4.0.0
|
|
* @ignore
|
|
*
|
|
* @event postboxes#postboxes-columnchange
|
|
*/
|
|
$( document ).trigger( 'postboxes-columnchange' );
|
|
},
|
|
|
|
/**
|
|
* Changes the amount of columns the postboxes are in based on the current
|
|
* orientation of the browser.
|
|
*
|
|
* @since 3.3.0
|
|
* @access private
|
|
*
|
|
* @memberof postboxes
|
|
*
|
|
* @return {void}
|
|
*/
|
|
_pb_change : function() {
|
|
var check = $( 'label.columns-prefs-1 input[type="radio"]' );
|
|
|
|
switch ( window.orientation ) {
|
|
case 90:
|
|
case -90:
|
|
if ( ! check.length || ! check.is( ':checked' ) ) {
|
|
this._pb_edit( 2 );
|
|
}
|
|
break;
|
|
case 0:
|
|
case 180:
|
|
if ( $( '#poststuff' ).length ) {
|
|
this._pb_edit( 1 );
|
|
} else if ( ! check.length || ! check.is( ':checked' ) ) {
|
|
this._pb_edit( 2 );
|
|
}
|
|
break;
|
|
}
|
|
},
|
|
|
|
/* Callbacks */
|
|
|
|
/**
|
|
* @since 2.7.0
|
|
* @access public
|
|
*
|
|
* @property {Function|boolean} pbshow A callback that is called when a postbox
|
|
* is opened.
|
|
* @memberof postboxes
|
|
*/
|
|
pbshow : false,
|
|
|
|
/**
|
|
* @since 2.7.0
|
|
* @access public
|
|
* @property {Function|boolean} pbhide A callback that is called when a postbox
|
|
* is closed.
|
|
* @memberof postboxes
|
|
*/
|
|
pbhide : false
|
|
};
|
|
|
|
}( jQuery ));
|