examples/gae/showcase/static/js/foundation/foundation.forms.js
/*jslint unparam: true, browser: true, indent: 2 */
;(function ($, window, document, undefined) {
'use strict';
Foundation.libs.forms = {
name : 'forms',
version : '4.0.4',
settings : {
disable_class: 'no-custom'
},
init : function (scope, method, options) {
this.scope = scope || this.scope;
if (typeof method === 'object') {
$.extend(true, this.settings, method);
}
if (typeof method != 'string') {
if (!this.settings.init) {
this.events();
}
this.assemble();
return this.settings.init;
} else {
return this[method].call(this, options);
}
},
assemble : function () {
$('form.custom input[type="radio"]', $(this.scope)).not('[data-customforms="disabled"]')
.each(this.append_custom_markup);
$('form.custom input[type="checkbox"]', $(this.scope)).not('[data-customforms="disabled"]')
.each(this.append_custom_markup);
$('form.custom select', $(this.scope)).not('[data-customforms="disabled"]')
.each(this.append_custom_select);
},
events : function () {
var self = this;
$(this.scope)
.on('change.fndtn.forms', 'form.custom select:not([data-customforms="disabled"])', function (e) {
self.refresh_custom_select($(this));
})
.on('click.fndtn.forms', 'form.custom label', function (e) {
var $associatedElement = $('#' + self.escape($(this).attr('for')) + ':not([data-customforms="disabled"])'),
$customCheckbox,
$customRadio;
if ($associatedElement.length !== 0) {
if ($associatedElement.attr('type') === 'checkbox') {
e.preventDefault();
$customCheckbox = $(this).find('span.custom.checkbox');
//the checkbox might be outside after the label
if ($customCheckbox.length == 0) {
$customCheckbox = $(this).next('span.custom.checkbox');
}
//the checkbox might be outside before the label
if ($customCheckbox.length == 0) {
$customCheckbox = $(this).prev('span.custom.checkbox');
}
self.toggle_checkbox($customCheckbox);
} else if ($associatedElement.attr('type') === 'radio') {
e.preventDefault();
$customRadio = $(this).find('span.custom.radio');
//the radio might be outside after the label
if ($customRadio.length == 0) {
$customRadio = $(this).next('span.custom.radio');
}
//the radio might be outside before the label
if ($customRadio.length == 0) {
$customRadio = $(this).prev('span.custom.radio');
}
self.toggle_radio($customRadio);
}
}
})
.on('click.fndtn.forms', 'form.custom div.custom.dropdown a.current, form.custom div.custom.dropdown a.selector', function (e) {
var $this = $(this),
$dropdown = $this.closest('div.custom.dropdown'),
$select = $dropdown.prev();
// make sure other dropdowns close
if(!$dropdown.hasClass('open'))
$(self.scope).trigger('click');
e.preventDefault();
if (false === $select.is(':disabled')) {
$dropdown.toggleClass('open');
if ($dropdown.hasClass('open')) {
$(self.scope).on('click.fndtn.forms.customdropdown', function () {
$dropdown.removeClass('open');
$(self.scope).off('.fndtn.forms.customdropdown');
});
} else {
$(self.scope).on('.fndtn.forms.customdropdown');
}
return false;
}
})
.on('click.fndtn.forms touchend.fndtn.forms', 'form.custom div.custom.dropdown li', function (e) {
var $this = $(this),
$customDropdown = $this.closest('div.custom.dropdown'),
$select = $customDropdown.prev(),
selectedIndex = 0;
e.preventDefault();
e.stopPropagation();
if ( ! $(this).hasClass('disabled')) {
$('div.dropdown').not($customDropdown).removeClass('open');
var $oldThis= $this
.closest('ul')
.find('li.selected');
$oldThis.removeClass('selected');
$this.addClass('selected');
$customDropdown
.removeClass('open')
.find('a.current')
.html($this.html());
$this.closest('ul').find('li').each(function (index) {
if ($this[0] == this) {
selectedIndex = index;
}
});
$select[0].selectedIndex = selectedIndex;
//store the old value in data
$select.data('prevalue', $oldThis.html());
$select.trigger('change');
}
});
this.settings.init = true;
},
append_custom_markup : function (idx, sel) {
var $this = $(sel).hide(),
type = $this.attr('type'),
$span = $this.next('span.custom.' + type);
if ($span.length === 0) {
$span = $('<span class="custom ' + type + '"></span>').insertAfter($this);
}
$span.toggleClass('checked', $this.is(':checked'));
$span.toggleClass('disabled', $this.is(':disabled'));
},
append_custom_select : function (idx, sel) {
var self = Foundation.libs.forms,
$this = $( sel ),
$customSelect = $this.next( 'div.custom.dropdown' ),
$customList = $customSelect.find( 'ul' ),
$selectCurrent = $customSelect.find( ".current" ),
$selector = $customSelect.find( ".selector" ),
$options = $this.find( 'option' ),
$selectedOption = $options.filter( ':selected' ),
copyClasses = $this.attr('class') ? $this.attr('class').split(' ') : [],
maxWidth = 0,
liHtml = '',
$listItems,
$currentSelect = false;
if ($this.hasClass(self.settings.disable_class)) return;
if ($customSelect.length === 0) {
var customSelectSize = $this.hasClass( 'small' ) ? 'small' :
$this.hasClass( 'medium' ) ? 'medium' :
$this.hasClass( 'large' ) ? 'large' :
$this.hasClass( 'expand' ) ? 'expand' : '';
$customSelect = $('<div class="' + ['custom', 'dropdown', customSelectSize ].concat(copyClasses).filter(function(item, idx,arr){ if(item == '') return false; return arr.indexOf(item) == idx; }).join( ' ' ) + '"><a href="#" class="selector"></a><ul /></div>');
$selector = $customSelect.find(".selector");
$customList = $customSelect.find("ul");
liHtml = $options.map(function() { return "<li>" + $( this ).html() + "</li>"; } ).get().join( '' );
$customList.append(liHtml);
$currentSelect = $customSelect.prepend('<a href="#" class="current">' + $selectedOption.html() + '</a>' ).find( ".current" );
$this
.after( $customSelect )
.hide();
} else {
liHtml = $options.map(function() {
return "<li>" + $( this ).html() + "</li>";
})
.get().join('');
$customList
.html('')
.append(liHtml);
} // endif $customSelect.length === 0
$customSelect.toggleClass('disabled', $this.is( ':disabled' ) );
$listItems = $customList.find( 'li' );
$options.each( function ( index ) {
if ( this.selected ) {
$listItems.eq( index ).addClass( 'selected' );
if ($currentSelect) {
$currentSelect.html( $( this ).html() );
}
}
if ($(this).is(':disabled')) {
$listItems.eq( index ).addClass( 'disabled' );
}
});
//
// If we're not specifying a predetermined form size.
//
if (!$customSelect.is('.small, .medium, .large, .expand')) {
// ------------------------------------------------------------------------------------
// This is a work-around for when elements are contained within hidden parents.
// For example, when custom-form elements are inside of a hidden reveal modal.
//
// We need to display the current custom list element as well as hidden parent elements
// in order to properly calculate the list item element's width property.
// -------------------------------------------------------------------------------------
$customSelect.addClass( 'open' );
//
// Quickly, display all parent elements.
// This should help us calculate the width of the list item's within the drop down.
//
var self = Foundation.libs.forms;
self.hidden_fix.adjust( $customList );
maxWidth = ( self.outerWidth($listItems) > maxWidth ) ? self.outerWidth($listItems) : maxWidth;
Foundation.libs.forms.hidden_fix.reset();
$customSelect.removeClass( 'open' );
} // endif
},
refresh_custom_select : function ($select) {
var self = this;
var maxWidth = 0,
$customSelect = $select.next(),
$options = $select.find('option');
$customSelect.find('ul').html('');
$options.each(function () {
var $li = $('<li>' + $(this).html() + '</li>');
$customSelect.find('ul').append($li);
});
// re-populate
$options.each(function (index) {
if (this.selected) {
$customSelect.find('li').eq(index).addClass('selected');
$customSelect.find('.current').html($(this).html());
}
if ($(this).is(':disabled')) {
$customSelect.find('li').eq(index).addClass('disabled');
}
});
// fix width
$customSelect.removeAttr('style')
.find('ul').removeAttr('style');
$customSelect.find('li').each(function () {
$customSelect.addClass('open');
if (self.outerWidth($(this)) > maxWidth) {
maxWidth = self.outerWidth($(this));
}
$customSelect.removeClass('open');
});
},
toggle_checkbox : function ($element) {
var $input = $element.prev(),
input = $input[0];
if (false === $input.is(':disabled')) {
input.checked = ((input.checked) ? false : true);
$element.toggleClass('checked');
$input.trigger('change');
}
},
toggle_radio : function ($element) {
var $input = $element.prev(),
$form = $input.closest('form.custom'),
input = $input[0];
if (false === $input.is(':disabled')) {
$form.find('input[type="radio"][name="' + this.escape($input.attr('name')) + '"]').next().not($element).removeClass('checked');
if ( !$element.hasClass('checked') ) {
$element.toggleClass('checked');
}
input.checked = $element.hasClass('checked');
$input.trigger('change');
}
},
escape : function (text) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
},
hidden_fix : {
/**
* Sets all hidden parent elements and self to visible.
*
* @method adjust
* @param {jQuery Object} $child
*/
// We'll use this to temporarily store style properties.
tmp : [],
// We'll use this to set hidden parent elements.
hidden : null,
adjust : function( $child ) {
// Internal reference.
var _self = this;
// Set all hidden parent elements, including this element.
_self.hidden = $child.parents().andSelf().filter( ":hidden" );
// Loop through all hidden elements.
_self.hidden.each( function() {
// Cache the element.
var $elem = $( this );
// Store the style attribute.
// Undefined if element doesn't have a style attribute.
_self.tmp.push( $elem.attr( 'style' ) );
// Set the element's display property to block,
// but ensure it's visibility is hidden.
$elem.css( { 'visibility' : 'hidden', 'display' : 'block' } );
});
}, // end adjust
/**
* Resets the elements previous state.
*
* @method reset
*/
reset : function() {
// Internal reference.
var _self = this;
// Loop through our hidden element collection.
_self.hidden.each( function( i ) {
// Cache this element.
var $elem = $( this ),
_tmp = _self.tmp[ i ]; // Get the stored 'style' value for this element.
// If the stored value is undefined.
if( _tmp === undefined )
// Remove the style attribute.
$elem.removeAttr( 'style' );
else
// Otherwise, reset the element style attribute.
$elem.attr( 'style', _tmp );
});
// Reset the tmp array.
_self.tmp = [];
// Reset the hidden elements variable.
_self.hidden = null;
} // end reset
},
off : function () {
$(this.scope).off('.fndtn.forms');
}
};
}(Foundation.zj, this, this.document));