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var GFFeedOrder = function( args ) {
var self = this,
$ = jQuery;
/**
* Initialize Feed Ordering
*/
self.init = function() {
// Assign options to instance.
self.options = args;
// Prepare sorting handle.
var sortHandleMarkup = '<td class="sort-column"><i class="fa fa-bars feed-sort-handle"></i></td>';
// Add sorting handle to table.
$( '.wp-list-table thead tr, .wp-list-table tfoot tr' ).append( '<th class="sort-column"></th>' );
$( '.wp-list-table tbody tr' ).append( sortHandleMarkup );
// Initialize sorting.
self.initSorting();
};
/**
* Initialize jQuery UI Sortable.
*/
self.initSorting = function() {
$( '.wp-list-table tbody' ).sortable(
{
cursor: 'move',
handle: '.feed-sort-handle',
placeholder: 'feed-placeholder',
tolerance: 'pointer',
create: function() { $( '.wp-list-table' ).addClass( 'feed-list-sortable' ); },
helper: self.fixSortableColumnWidths,
start: self.setPlaceholderHeight,
update: self.updateFeedOrder,
}
);
}
/**
* Fix table column widths.
*/
self.fixSortableColumnWidths = function( event, tr ) {
var $originals = tr.children(),
$helper = tr.clone();
$helper.children().each( function( index ) {
$( this ).width( $originals.eq( index ).width() );
} );
return $helper;
}
/**
* Get order of feeds.
*/
self.getFeedOrder = function() {
// Get all the checkboxes from the feed list table.
var feed_checkboxes = $( '.wp-list-table tbody .check-column input[type="checkbox"]' );
// Map a function to the feed checkboxes array that returns the checkbox value.
return feed_checkboxes.map( function() {
return $( this ).val();
} ).get();
}
/**
* Set height of the placeholder draggable feed.
*/
self.setPlaceholderHeight = function( event, ui ) {
// Set the height of the placeholder to the height of the feed being moved.
$( '.wp-list-table .feed-placeholder' ).height( ui.item.height() );
}
/**
* Save the feed ordering to the database.
*/
self.updateFeedOrder = function( event, ui ) {
$.ajax(
ajaxurl,
{
method: 'POST',
dataType: 'JSON',
data: {
action: 'gf_save_feed_order',
addon: self.options.addon,
form_id: self.options.formId,
feed_order: self.getFeedOrder(),
nonce: self.options.nonce,
}
}
);
}
this.init();
}