456 lines
12 KiB
JavaScript
456 lines
12 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, postBoxL10n, postboxes */
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(function($) {
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var $document = $( document );
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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.parent( '.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( postboxes.page );
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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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* 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 = $( '.postbox .hndle, .postbox .handlediv' );
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this.page = page;
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this.init( page, args );
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$handles.on( 'click.postboxes', this.handle_click );
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/**
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* @since 2.7.0
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*/
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$('.postbox .hndle a').click( function(e) {
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e.stopPropagation();
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});
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/**
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* Hides a postbox.
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*
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* Event handler for the postbox dismiss button. After clicking the button
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* the postbox will be hidden.
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*
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* @since 3.2.0
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*
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* @return {void}
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*/
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$( '.postbox a.dismiss' ).on( 'click.postboxes', function( e ) {
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var hide_id = $(this).parents('.postbox').attr('id') + '-hide';
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e.preventDefault();
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$( '#' + 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').bind('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 ( $.isFunction( postboxes.pbhide ) ) {
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postboxes.pbhide( boxId );
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}
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}
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postboxes.save_state( page );
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postboxes._mark_area();
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/**
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* @since 4.0.0
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* @see postboxes.handle_click
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*/
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$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"]').bind('click.postboxes', function(){
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var n = parseInt($(this).val(), 10);
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if ( n ) {
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postboxes._pb_edit(n);
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postboxes.save_order( page );
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}
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});
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},
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/**
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* Initializes all 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.
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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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var isMobile = $( document.body ).hasClass( 'mobile' ),
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$handleButtons = $( '.postbox .handlediv' );
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$.extend( this, args || {} );
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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: ( isMobile ? 200 : 0 ),
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distance: 2,
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tolerance: 'pointer',
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forcePlaceholderSize: true,
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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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opacity: 0.65,
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stop: function() {
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var $el = $( this );
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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.save_order(page);
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},
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receive: function(e,ui) {
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if ( 'dashboard_browser_nag' == ui.item[0].id )
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$(ui.sender).sortable('cancel');
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postboxes._mark_area();
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$document.trigger( 'postbox-moved', ui.item );
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}
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});
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if ( isMobile ) {
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$(document.body).bind('orientationchange.postboxes', function(){ postboxes._pb_change(); });
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this._pb_change();
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}
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this._mark_area();
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// Set the handle buttons `aria-expanded` attribute initial value on page load.
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$handleButtons.each( function () {
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var $el = $( this );
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$el.attr( 'aria-expanded', ! $el.parent( '.postbox' ).hasClass( 'closed' ) );
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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(page) {
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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' === 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: jQuery('#closedpostboxesnonce').val(),
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page: 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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* @param {string} page The page we are currently on.
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* @return {void}
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*/
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save_order : function(page) {
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var postVars, page_columns = $('.columns-prefs input:checked').val() || 0;
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postVars = {
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action: 'meta-box-order',
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_ajax_nonce: $('#meta-box-order-nonce').val(),
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page_columns: page_columns,
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page: page
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};
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$('.meta-box-sortables').each( function() {
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postVars[ 'order[' + this.id.split( '-' )[0] + ']' ] = $( this ).sortable( 'toArray' ).join( ',' );
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} );
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$.post( ajaxurl, postVars );
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},
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/**
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* Marks empty postbox areas.
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*
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* Adds a message to empty sortable areas on the dashboard page. Also adds a
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* border around the side area on the post edit screen if there are no postboxes
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* present.
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*
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* @since 3.3.0
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* @access private
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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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_mark_area : function() {
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var visible = $('div.postbox:visible').length, side = $('#post-body #side-sortables');
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$( '#dashboard-widgets .meta-box-sortables:visible' ).each( function() {
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var t = $(this);
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if ( visible == 1 || t.children('.postbox:visible').length ) {
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t.removeClass('empty-container');
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}
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else {
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t.addClass('empty-container');
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t.attr('data-emptyString', postBoxL10n.postBoxEmptyString);
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}
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});
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if ( side.length ) {
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if ( side.children('.postbox:visible').length )
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side.removeClass('empty-container');
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else if ( $('#postbox-container-1').css('width') == '280px' )
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side.addClass('empty-container');
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}
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},
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/**
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* Changes the amount of columns on the post edit page.
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*
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* @since 3.3.0
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* @access private
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*
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* @memberof postboxes
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*
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* @fires postboxes#postboxes-columnchange
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*
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* @param {number} n The amount of columns to divide the post edit page in.
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* @return {void}
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*/
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_pb_edit : function(n) {
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var el = $('.metabox-holder').get(0);
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if ( el ) {
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el.className = el.className.replace(/columns-\d+/, 'columns-' + n);
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}
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/**
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* Fires when the amount of columns on the post edit page has been changed.
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*
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* @since 4.0.0
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* @ignore
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*
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* @event postboxes#postboxes-columnchange
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*/
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$( document ).trigger( 'postboxes-columnchange' );
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},
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/**
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* Changes the amount of columns the postboxes are in based on the current
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* orientation of the browser.
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*
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* @since 3.3.0
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* @access private
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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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_pb_change : function() {
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var check = $( 'label.columns-prefs-1 input[type="radio"]' );
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switch ( window.orientation ) {
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case 90:
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case -90:
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if ( !check.length || !check.is(':checked') )
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this._pb_edit(2);
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break;
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case 0:
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case 180:
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if ( $( '#poststuff' ).length ) {
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this._pb_edit(1);
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} else {
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if ( !check.length || !check.is(':checked') )
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this._pb_edit(2);
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}
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break;
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}
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},
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/* Callbacks */
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/**
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* @since 2.7.0
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* @access public
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*
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* @property {Function|boolean} pbshow A callback that is called when a postbox
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* is opened.
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* @memberof postboxes
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*/
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pbshow : false,
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/**
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* @since 2.7.0
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* @access public
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* @property {Function|boolean} pbhide A callback that is called when a postbox
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* is closed.
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* @memberof postboxes
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*/
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pbhide : false
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};
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}(jQuery));
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