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Mini Shell
Mini Shell
/* 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 $inputs .rwmb-clone element
* @param index Index value
*/
set: function ( $inputs, index ) {
$inputs.each( function () {
var $field = $( this );
// Name attribute
var name = this.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, '_', '', true, true ) );
}
$field.trigger( 'update_index', index );
} );
// Address button's value attribute
var $address = $inputs.filter( '.rwmb-map-goto-address-button' );
if ( $address.length ) {
var value = $address.attr( 'value' );
$address.attr( 'value', cloneIndex.replace( index, value, '_' ) );
}
},
/**
* Replace an attribute of a field with updated index
* @param index New index value
* @param value Attribute value
* @param before String before returned value
* @param after String after returned value
* @param alternative Check if attribute does not contain any integer, will reset the attribute?
* @param isEnd Check if we find string at the end?
* @return string
*/
replace: function ( index, value, before, after, alternative, isEnd ) {
before = before || '';
after = after || '';
if ( typeof alternative === 'undefined' ) {
alternative = true;
}
var end = isEnd ? '$' : '';
var regex = new RegExp( cloneIndex.escapeRegex( before ) + '(\\d+)' + cloneIndex.escapeRegex( after ) + end ),
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' );
$container.data( 'next-index', nextIndex + 1 );
return nextIndex;
}
};
// Object holds all method related to fields' value when clone.
var cloneValue = {
/**
* Reset field value when clone. Expect this = current input.
*/
reset: function() {
cloneValue.$field = $( this );
cloneValue.type = cloneValue.$field.attr( 'type' );
cloneValue.isHiddenField = cloneValue.$field.hasClass( 'rwmb-hidden' );
if ( true === cloneValue.$field.data( 'clone-default' ) ) {
cloneValue.resetToDefault();
} else {
cloneValue.clear();
}
},
/**
* Reset field value to its default.
*/
resetToDefault: function() {
var defaultValue = cloneValue.$field.data( 'default' );
if ( 'radio' === cloneValue.type ) {
cloneValue.$field.prop( 'checked', cloneValue.$field.val() === defaultValue );
} else if ( 'checkbox' === cloneValue.type ) {
cloneValue.$field.prop( 'checked', !!defaultValue );
} else if ( 'select' === cloneValue.type ) {
cloneValue.$field.find( 'option[value="' + defaultValue + '"]' ).prop( 'selected', true );
} else if ( ! cloneValue.isHiddenField ) {
cloneValue.$field.val( defaultValue );
}
},
/**
* Clear field value.
*/
clear: function() {
if ( 'radio' === cloneValue.type || 'checkbox' === cloneValue.type ) {
cloneValue.$field.prop( 'checked', false );
} else if ( 'select' === cloneValue.type ) {
cloneValue.$field.prop( 'selectedIndex', - 1 );
} else if ( ! cloneValue.isHiddenField ) {
cloneValue.$field.val( '' );
}
}
};
/**
* Clone fields
* @param $container A div container which has all fields
*/
function clone( $container ) {
var $last = $container.children( '.rwmb-clone' ).last(),
$clone = $last.clone(),
inputSelectors = 'input[class*="rwmb"], textarea[class*="rwmb"], select[class*="rwmb"], button[class*="rwmb"]',
nextIndex = cloneIndex.nextIndex( $container );
// Reset value for fields
var $inputs = $clone.find( inputSelectors );
$inputs.each( cloneValue.reset );
// 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( $inputs, nextIndex );
// Trigger custom clone event.
$inputs.trigger( 'clone', nextIndex );
// After cloning fields.
$inputs.trigger( 'after_clone', nextIndex );
}
/**
* Hide remove buttons when there's only 1 of them
*
* @param $container .rwmb-input container
*/
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
*/
function toggleAddButton( $container ) {
var $button = $container.children( '.add-clone' ),
maxClone = parseInt( $container.data( 'max-clone' ) ),
numClone = $container.children( '.rwmb-clone' ).length;
$button.toggle( isNaN( maxClone ) || ( maxClone && numClone < maxClone ) );
}
/**
* Initialize clone sorting.
*/
function initSortable() {
$( '.rwmb-input' ).each( function () {
var $container = $( this );
if ( undefined !== $container.sortable( 'instance' ) ) {
return;
}
$container.sortable( {
handle: '.rwmb-clone-icon',
placeholder: ' rwmb-clone rwmb-sortable-placeholder',
items: '> .rwmb-clone',
start: function ( event, ui ) {
// Make the placeholder has the same height as dragged item
ui.placeholder.height( ui.item.outerHeight() );
}
} );
} );
}
$( document )
// Add clones
.on( 'click', '.add-clone', function ( e ) {
e.preventDefault();
var $container = $( this ).closest( '.rwmb-input' );
clone( $container );
toggleRemoveButtons( $container );
toggleAddButton( $container );
initSortable();
} )
// 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-sortable-placeholder',
items: '> .rwmb-clone',
start: function ( event, ui ) {
// Make the placeholder has the same height as dragged item
ui.placeholder.height( ui.item.outerHeight() );
}
} );
} );
} );
Zerion Mini Shell 1.0