WordPress/wp-admin/js/media.js

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/**
* Creates a dialog containing posts that can have a particular media attached
* to it.
*
* @since 2.7.0
* @output wp-admin/js/media.js
*
* @namespace findPosts
*
* @requires jQuery
*/
/* global ajaxurl, _wpMediaGridSettings, showNotice, findPosts */
( function( $ ){
window.findPosts = {
/**
* Opens a dialog to attach media to a post.
*
* Adds an overlay prior to retrieving a list of posts to attach the media to.
*
* @since 2.7.0
*
* @memberOf findPosts
*
* @param {string} af_name The name of the affected element.
* @param {string} af_val The value of the affected post element.
*
* @return {boolean} Always returns false.
*/
open: function( af_name, af_val ) {
var overlay = $( '.ui-find-overlay' );
if ( overlay.length === 0 ) {
$( 'body' ).append( '<div class="ui-find-overlay"></div>' );
findPosts.overlay();
}
overlay.show();
if ( af_name && af_val ) {
// #affected is a hidden input field in the dialog that keeps track of which media should be attached.
$( '#affected' ).attr( 'name', af_name ).val( af_val );
}
$( '#find-posts' ).show();
// Close the dialog when the escape key is pressed.
$('#find-posts-input').focus().keyup( function( event ){
if ( event.which == 27 ) {
findPosts.close();
}
});
// Retrieves a list of applicable posts for media attachment and shows them.
findPosts.send();
return false;
},
/**
* Clears the found posts lists before hiding the attach media dialog.
*
* @since 2.7.0
*
* @memberOf findPosts
*
* @return {void}
*/
close: function() {
$('#find-posts-response').empty();
$('#find-posts').hide();
$( '.ui-find-overlay' ).hide();
},
/**
* Binds a click event listener to the overlay which closes the attach media
* dialog.
*
* @since 3.5.0
*
* @memberOf findPosts
*
* @return {void}
*/
overlay: function() {
$( '.ui-find-overlay' ).on( 'click', function () {
findPosts.close();
});
},
/**
* Retrieves and displays posts based on the search term.
*
* Sends a post request to the admin_ajax.php, requesting posts based on the
* search term provided by the user. Defaults to all posts if no search term is
* provided.
*
* @since 2.7.0
*
* @memberOf findPosts
*
* @return {void}
*/
send: function() {
var post = {
ps: $( '#find-posts-input' ).val(),
action: 'find_posts',
_ajax_nonce: $('#_ajax_nonce').val()
},
spinner = $( '.find-box-search .spinner' );
spinner.addClass( 'is-active' );
/**
* Send a POST request to admin_ajax.php, hide the spinner and replace the list
* of posts with the response data. If an error occurs, display it.
*/
$.ajax( ajaxurl, {
type: 'POST',
data: post,
dataType: 'json'
}).always( function() {
spinner.removeClass( 'is-active' );
}).done( function( x ) {
if ( ! x.success ) {
$( '#find-posts-response' ).text( wp.i18n.__( 'An error has occurred. Please reload the page and try again.' ) );
}
$( '#find-posts-response' ).html( x.data );
}).fail( function() {
$( '#find-posts-response' ).text( wp.i18n.__( 'An error has occurred. Please reload the page and try again.' ) );
});
}
};
/**
* Initializes the file once the DOM is fully loaded and attaches events to the
* various form elements.
*
* @return {void}
*/
$( document ).ready( function() {
var settings, $mediaGridWrap = $( '#wp-media-grid' );
// Opens a manage media frame into the grid.
if ( $mediaGridWrap.length && window.wp && window.wp.media ) {
settings = _wpMediaGridSettings;
var frame = window.wp.media({
frame: 'manage',
container: $mediaGridWrap,
library: settings.queryVars
}).open();
// Fire a global ready event.
$mediaGridWrap.trigger( 'wp-media-grid-ready', frame );
}
// Prevents form submission if no post has been selected.
$( '#find-posts-submit' ).on( 'click', function( event ) {
if ( ! $( '#find-posts-response input[type="radio"]:checked' ).length )
event.preventDefault();
});
// Submits the search query when hitting the enter key in the search input.
$( '#find-posts .find-box-search :input' ).on( 'keypress', function( event ) {
if ( 13 == event.which ) {
findPosts.send();
return false;
}
});
// Binds the click event to the search button.
$( '#find-posts-search' ).on( 'click', findPosts.send );
// Binds the close dialog click event.
$( '#find-posts-close' ).on( 'click', findPosts.close );
// Binds the bulk action events to the submit buttons.
$( '#doaction' ).on( 'click', function( event ) {
/*
* Handle the bulk action based on its value.
*/
$( 'select[name="action"]' ).each( function() {
var optionValue = $( this ).val();
if ( 'attach' === optionValue ) {
event.preventDefault();
findPosts.open();
} else if ( 'delete' === optionValue ) {
if ( ! showNotice.warn() ) {
event.preventDefault();
}
}
});
});
/**
* Enables clicking on the entire table row.
*
* @return {void}
*/
$( '.find-box-inside' ).on( 'click', 'tr', function() {
$( this ).find( '.found-radio input' ).prop( 'checked', true );
});
});
})( jQuery );