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foundation.forms.js
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foundation.forms.js
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(function ($, window, document, undefined) {
'use strict';
Foundation.libs.forms = {
name: 'forms',
version: '4.2.1',
cache: {},
settings: {
disable_class: 'no-custom',
last_combo : null
},
init: function (scope, method, options) {
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"]')
.not('[multiple=multiple]')
.each(this.append_custom_select);
},
events: function () {
var self = this;
$(this.scope)
.on('click.fndtn.forms', 'form.custom span.custom.checkbox', function (e) {
e.preventDefault();
e.stopPropagation();
self.toggle_checkbox($(this));
})
.on('click.fndtn.forms', 'form.custom span.custom.radio', function (e) {
e.preventDefault();
e.stopPropagation();
self.toggle_radio($(this));
})
.on('change.fndtn.forms', 'form.custom select:not([data-customforms="disabled"])', function (e, force_refresh) {
self.refresh_custom_select($(this), force_refresh);
})
.on('click.fndtn.forms', 'form.custom label', function (e) {
if ($(e.target).is('label')) {
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 = $(this).find('span.custom.checkbox');
//the checkbox might be outside after the label or inside of another element
if ($customCheckbox.length == 0) {
$customCheckbox = $associatedElement.add(this).siblings('span.custom.checkbox').first();
}
self.toggle_checkbox($customCheckbox);
} else if ($associatedElement.attr('type') === 'radio') {
e.preventDefault();
$customRadio = $(this).find('span.custom.radio');
//the radio might be outside after the label or inside of another element
if ($customRadio.length == 0) {
$customRadio = $associatedElement.add(this).siblings('span.custom.radio').first();
}
self.toggle_radio($customRadio);
}
}
}
})
.on('mousedown.fndtn.forms', 'form.custom div.custom.dropdown', function () {
return false;
})
.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'),
$select = getFirstPrevSibling($dropdown, 'select');
// 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'),
$select = getFirstPrevSibling($customDropdown, 'select'),
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');
$customDropdown.removeClass('open')
.find('a.current')
.text($this.text());
$this.closest('ul').find('li').each(function (index) {
if ($this[0] == this) {
selectedIndex = index;
}
});
$select[0].selectedIndex = selectedIndex;
//store the old value in data
$select.data('prevalue', $oldThis.html());
$select.trigger('change');
}
});
$(window).on('keydown', function (e) {
var focus = document.activeElement,
self = Foundation.libs.forms,
dropdown = $('.custom.dropdown.open');
if (dropdown.length > 0) {
e.preventDefault();
if (e.which === 13) {
dropdown.find('li.selected').trigger('click');
}
if (e.which === 27) {
dropdown.removeClass('open');
}
if (e.which >= 65 && e.which <= 90) {
var next = self.go_to(dropdown, e.which),
current = dropdown.find('li.selected');
if (next) {
current.removeClass('selected');
self.scrollTo(next.addClass('selected'), 300);
}
}
if (e.which === 38) {
var current = dropdown.find('li.selected'),
prev = current.prev(':not(.disabled)');
if (prev.length > 0) {
prev.parent()[0].scrollTop = prev.parent().scrollTop() - self.outerHeight(prev);
current.removeClass('selected');
prev.addClass('selected');
}
} else if (e.which === 40) {
var current = dropdown.find('li.selected'),
next = current.next(':not(.disabled)');
if (next.length > 0) {
next.parent()[0].scrollTop = next.parent().scrollTop() + self.outerHeight(next);
current.removeClass('selected');
next.addClass('selected');
}
}
}
});
this.settings.init = true;
},
go_to: function (dropdown, character) {
var lis = dropdown.find('li'),
count = lis.length;
if (count > 0) {
for (var i = 0; i < count; i++) {
var first_letter = lis.eq(i).text().charAt(0).toLowerCase();
if (first_letter === String.fromCharCode(character).toLowerCase()) return lis.eq(i);
}
}
},
scrollTo: function (el, duration) {
if (duration < 0) return;
var parent = el.parent();
var li_height = this.outerHeight(el);
var difference = (li_height * (el.index())) - parent.scrollTop();
var perTick = difference / duration * 10;
this.scrollToTimerCache = setTimeout(function () {
if (!isNaN(parseInt(perTick, 10))) {
parent[0].scrollTop = parent.scrollTop() + perTick;
this.scrollTo(el, duration - 10);
}
}.bind(this), 10);
},
append_custom_markup: function (idx, sel) {
var $this = $(sel),
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 () {
var copyClasses = $(this).attr('class') ? $(this).attr('class') : '';
return "<li class='" + copyClasses + "'>" + $(this).html() + "</li>";
}).get().join('');
$customList.append(liHtml);
$currentSelect = $customSelect
.prepend('<a href="#" class="current">' + $selectedOption.html() + '</a>')
.find(".current");
$this.after($customSelect)
.addClass('hidden-field');
} else {
liHtml = $options.map(function () {
return "<li>" + $(this).html() + "</li>";
})
.get().join('');
$customList.html('')
.append(liHtml);
} // endif $customSelect.length === 0
self.assign_id($this, $customSelect);
$customSelect.toggleClass('disabled', $this.is(':disabled'));
$listItems = $customList.find('li');
// cache list length
self.cache[$customSelect.data('id')] = $listItems.length;
$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.
// -------------------------------------------------------------------------------------
$customSelect.addClass('open');
//
// Quickly, display all parent elements.
// This should help us calcualate the width of the list item's within the drop down.
//
var self = Foundation.libs.forms;
self.hidden_fix.adjust($customList);
maxWidth = (self.outerWidth($listItems) > maxWidth) ? self.outerWidth($listItems) : maxWidth;
Foundation.libs.forms.hidden_fix.reset();
$customSelect.removeClass('open');
} // endif
},
assign_id: function ($select, $customSelect) {
var id = [+new Date(), Foundation.random_str(5)].join('-');
$select.attr('data-id', id);
$customSelect.attr('data-id', id);
},
refresh_custom_select: function ($select, force_refresh) {
var self = this;
var maxWidth = 0,
$customSelect = $select.next(),
$options = $select.find('option'),
$listItems = $customSelect.find('li');
if ($listItems.length != this.cache[$customSelect.data('id')] || force_refresh) {
$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');
});
$listItems = $customSelect.find('li');
// cache list length
this.cache[$customSelect.data('id')] = $listItems.length;
}
},
toggle_checkbox: function ($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 visibile.
*
* @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 = $child.parents();
_self.hidden = _self.hidden.add($child).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 () {
$(this.scope).off('.fndtn.forms');
},
reflow : function () {}
};
var getFirstPrevSibling = function($el, selector) {
var $el = $el.prev();
while ($el.length) {
if ($el.is(selector)) return $el;
$el = $el.prev();
}
return $();
};
}(Foundation.zj, this, this.document));

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