/**

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* Creates a dialog containing posts that can have a particular media attached

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* to it.

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*

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* @since 2.7.0

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* @output wp-admin/js/media.js

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*

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* @namespace findPosts

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*

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* @requires jQuery

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*/

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/* global ajaxurl, _wpMediaGridSettings, showNotice, findPosts */

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( function( $ ){

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window.findPosts = {

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/**

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* Opens a dialog to attach media to a post.

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*

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* Adds an overlay prior to retrieving a list of posts to attach the media to.

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*

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* @since 2.7.0

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*

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* @memberOf findPosts

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*

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* @param {string} af_name The name of the affected element.

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* @param {string} af_val The value of the affected post element.

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*

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* @return {boolean} Always returns false.

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*/

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open: function( af_name, af_val ) {

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var overlay = $( '.ui-find-overlay' );

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if ( overlay.length === 0 ) {

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$( 'body' ).append( '<div class="ui-find-overlay"></div>' );

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findPosts.overlay();

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}

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overlay.show();

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if ( af_name && af_val ) {

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// #affected is a hidden input field in the dialog that keeps track of which media should be attached.

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$( '#affected' ).attr( 'name', af_name ).val( af_val );

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}

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$( '#find-posts' ).show();

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// Close the dialog when the escape key is pressed.

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$('#find-posts-input').trigger( 'focus' ).on( 'keyup', function( event ){

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if ( event.which == 27 ) {

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findPosts.close();

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}

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});

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// Retrieves a list of applicable posts for media attachment and shows them.

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findPosts.send();

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return false;

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},

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/**

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* Clears the found posts lists before hiding the attach media dialog.

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*

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* @since 2.7.0

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*

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* @memberOf findPosts

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*

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* @return {void}

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*/

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close: function() {

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$('#find-posts-response').empty();

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$('#find-posts').hide();

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$( '.ui-find-overlay' ).hide();

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},

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/**

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* Binds a click event listener to the overlay which closes the attach media

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* dialog.

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*

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* @since 3.5.0

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*

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* @memberOf findPosts

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*

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* @return {void}

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*/

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overlay: function() {

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$( '.ui-find-overlay' ).on( 'click', function () {

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findPosts.close();

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});

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},

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/**

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* Retrieves and displays posts based on the search term.

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*

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* Sends a post request to the admin_ajax.php, requesting posts based on the

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* search term provided by the user. Defaults to all posts if no search term is

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* provided.

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*

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* @since 2.7.0

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*

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* @memberOf findPosts

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*

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* @return {void}

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*/

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send: function() {

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var post = {

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ps: $( '#find-posts-input' ).val(),

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action: 'find_posts',

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_ajax_nonce: $('#_ajax_nonce').val()

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},

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spinner = $( '.find-box-search .spinner' );

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spinner.addClass( 'is-active' );

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/**

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* Send a POST request to admin_ajax.php, hide the spinner and replace the list

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* of posts with the response data. If an error occurs, display it.

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*/

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$.ajax( ajaxurl, {

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type: 'POST',

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data: post,

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dataType: 'json'

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}).always( function() {

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spinner.removeClass( 'is-active' );

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}).done( function( x ) {

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if ( ! x.success ) {

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$( '#find-posts-response' ).text( wp.i18n.__( 'An error has occurred. Please reload the page and try again.' ) );

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}

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$( '#find-posts-response' ).html( x.data );

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}).fail( function() {

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$( '#find-posts-response' ).text( wp.i18n.__( 'An error has occurred. Please reload the page and try again.' ) );

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});

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}

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};

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/**

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* Initializes the file once the DOM is fully loaded and attaches events to the

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* various form elements.

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*

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* @return {void}

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*/

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$( document ).ready( function() {

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var settings, $mediaGridWrap = $( '#wp-media-grid' );

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// Opens a manage media frame into the grid.

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if ( $mediaGridWrap.length && window.wp && window.wp.media ) {

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settings = _wpMediaGridSettings;

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var frame = window.wp.media({

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frame: 'manage',

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container: $mediaGridWrap,

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library: settings.queryVars

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}).open();

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// Fire a global ready event.

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$mediaGridWrap.trigger( 'wp-media-grid-ready', frame );

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}

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// Prevents form submission if no post has been selected.

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$( '#find-posts-submit' ).on( 'click', function( event ) {

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if ( ! $( '#find-posts-response input[type="radio"]:checked' ).length )

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event.preventDefault();

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});

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// Submits the search query when hitting the enter key in the search input.

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$( '#find-posts .find-box-search :input' ).on( 'keypress', function( event ) {

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if ( 13 == event.which ) {

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findPosts.send();

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return false;

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}

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});

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// Binds the click event to the search button.

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$( '#find-posts-search' ).on( 'click', findPosts.send );

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// Binds the close dialog click event.

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$( '#find-posts-close' ).on( 'click', findPosts.close );

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// Binds the bulk action events to the submit buttons.

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$( '#doaction' ).on( 'click', function( event ) {

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/*

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* Handle the bulk action based on its value.

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*/

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$( 'select[name="action"]' ).each( function() {

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var optionValue = $( this ).val();

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if ( 'attach' === optionValue ) {

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event.preventDefault();

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findPosts.open();

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} else if ( 'delete' === optionValue ) {

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if ( ! showNotice.warn() ) {

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event.preventDefault();

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}

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}

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});

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});

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/**

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* Enables clicking on the entire table row.

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*

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* @return {void}

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*/

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$( '.find-box-inside' ).on( 'click', 'tr', function() {

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$( this ).find( '.found-radio input' ).prop( 'checked', true );

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});

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});

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})( jQuery );

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