Current File : //home2/vacivi36/www2]/old/wp-content/plugins/meta-box/js/clone.js
/* global jQuery */
jQuery( function ( $ ) {
'use strict';
// Object holds all methods related to fields' index when clone
var cloneIndex = {
/**
* Set index for fields in a .rwmb-clone
* @param $clone .rwmb-clone element
* @param index Index value
*/
set: function ( $clone, index ) {
$clone.find( ':input[class|="rwmb"]' ).each( function () {
var $field = $( this );
// Name attribute
var name = $field.attr( 'name' );
if ( name && ! $field.closest( '.rwmb-group-clone' ).length ) {
$field.attr( 'name', cloneIndex.replace( index, name, '[', ']', false ) );
}
// ID attribute
var id = this.id;
if ( id ) {
$field.attr( 'id', cloneIndex.replace( index, id, '_' ) );
}
} );
// Address button's value attribute
var $address = $clone.find( '.rwmb-map-goto-address-button' );
if ( $address.length ) {
var value = $address.attr( 'value' );
$address.attr( 'value', cloneIndex.replace( index, value, '_' ) );
}
},
/**
* Replace an attribute of a field with updated index
* @param index New index value
* @param value Attribute value
* @param before String before returned value
* @param after String after returned value
* @param alternative Check if attribute does not contain any integer, will reset the attribute?
* @return string
*/
replace: function ( index, value, before, after, alternative ) {
before = before || '';
after = after || '';
alternative = alternative || true;
var regex = new RegExp( cloneIndex.escapeRegex( before ) + '(\\d+)' + cloneIndex.escapeRegex( after ) ),
newValue = before + index + after;
return regex.test( value ) ? value.replace( regex, newValue ) : (alternative ? value + newValue : value );
},
/**
* Helper function to escape string in regular expression
* @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
* @param string
* @return string
*/
escapeRegex: function ( string ) {
return string.replace( /[.*+?^${}()|[\]\\]/g, "\\$&" );
},
/**
* Helper function to create next index for clones
* @param $container .rwmb-input container
* @return integer
*/
nextIndex: function ( $container ) {
var nextIndex = $container.data( 'next-index' );
$container.data( 'next-index', nextIndex + 1 );
return nextIndex;
}
};
/**
* Clone fields
* @param $container A div container which has all fields
* @return void
*/
function clone( $container ) {
var $last = $container.children( '.rwmb-clone:last' ),
$clone = $last.clone(),
$input = $clone.find( ':input[class|="rwmb"]' ),
nextIndex = cloneIndex.nextIndex( $container );
// Reset value for fields
$input.each( function () {
var $field = $( this );
if ( $field.is( ':radio' ) || $field.is( ':checkbox' ) ) {
// Reset 'checked' attribute
$field.prop( 'checked', false );
} else if ( $field.is( 'select' ) ) {
// Reset select
$field.prop( 'selectedIndex', - 1 )
} else if ( ! $field.hasClass( 'rwmb-hidden' ) ) {
// Reset value
$field.val( '' );
}
} );
// Insert Clone
$clone.insertAfter( $last );
// Trigger custom event for the clone instance. Required for Group extension to update sub fields.
$clone.trigger( 'clone_instance', nextIndex );
// Set fields index. Must run before trigger clone event.
cloneIndex.set( $clone, nextIndex );
// Trigger custom clone event
$input.trigger( 'clone', nextIndex );
}
/**
* Hide remove buttons when there's only 1 of them
*
* @param $container .rwmb-input container
*
* @return void
*/
function toggleRemoveButtons( $container ) {
var $clones = $container.children( '.rwmb-clone' );
$clones.children( '.remove-clone' ).toggle( $clones.length > 1 );
// Recursive for nested groups.
$container.find( '.rwmb-input' ).each( function () {
toggleRemoveButtons( $( this ) );
} );
}
/**
* Toggle add button
* Used with [data-max-clone] attribute. When max clone is reached, the add button is hid and vice versa
*
* @param $container .rwmb-input container
*
* @return void
*/
function toggleAddButton( $container ) {
var $button = $container.find( '.add-clone' ),
maxClone = parseInt( $container.data( 'max-clone' ) ),
numClone = $container.find( '.rwmb-clone' ).length;
$button.toggle( isNaN( maxClone ) || ( maxClone && numClone < maxClone ) );
}
$( document )
// Add clones
.on( 'click', '.add-clone', function ( e ) {
e.preventDefault();
var $container = $( this ).closest( '.rwmb-input' );
clone( $container );
toggleRemoveButtons( $container );
toggleAddButton( $container );
} )
// Remove clones
.on( 'click', '.remove-clone', function ( e ) {
e.preventDefault();
var $this = $( this ),
$container = $this.closest( '.rwmb-input' );
// Remove clone only if there are 2 or more of them
if ( $container.children( '.rwmb-clone' ).length < 2 ) {
return;
}
$this.parent().trigger( 'remove' ).remove();
toggleRemoveButtons( $container );
toggleAddButton( $container )
} );
$( '.rwmb-input' ).each( function () {
var $container = $( this );
toggleRemoveButtons( $container );
toggleAddButton( $container );
$container
.data( 'next-index', $container.children( '.rwmb-clone' ).length )
.sortable( {
handle: '.rwmb-clone-icon',
placeholder: ' rwmb-clone rwmb-clone-placeholder',
items: '.rwmb-clone',
start: function ( event, ui ) {
// Make the placeholder has the same height as dragged item
ui.placeholder.height( ui.item.outerHeight() );
}
} );
} );
} );
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