webseite-grav/plugins/admin/themes/grav/js/form-attr.polyfill.js

81 lines
2.6 KiB
JavaScript

(function($) {
$(function() {
/**
* polyfill for html5 form attr
*/
// detect if browser supports this
var sampleElement = $('[form]').get(0);
var isIE11 = !(window.ActiveXObject) && "ActiveXObject" in window;
if (sampleElement && window.HTMLFormElement && sampleElement.form instanceof HTMLFormElement && !isIE11) {
// browser supports it, no need to fix
return;
}
/**
* Append a field to a form
*
*/
$.fn.appendField = function(data) {
// for form only
if (!this.is('form')) return;
// wrap data
if (!$.isArray(data) && data.name && data.value) {
data = [data];
}
var $form = this;
// attach new params
$.each(data, function(i, item) {
$('<input/>')
.attr('type', 'hidden')
.attr('name', item.name)
.val(item.value).appendTo($form);
});
return $form;
};
/**
* Find all input fields with form attribute point to jQuery object
*
*/
$('form[id]').submit(function(e) {
// serialize data
var data = $('[form=' + this.id + ']').serializeArray();
// append data to form
$(this).appendField(data);
}).each(function() {
var form = this,
$fields = $('[form=' + this.id + ']');
$fields.filter('button, input')
.filter('[type=reset],[type=submit],[type=image],button')
.click(function() {
var type = this.type.toLowerCase();
if (type === 'reset') {
// reset form
form.reset();
// for elements outside form
$fields.each(function() {
this.value = this.defaultValue;
this.checked = this.defaultChecked;
}).filter('select').each(function() {
$(this).find('option').each(function() {
this.selected = this.defaultSelected;
});
});
} else {
$(form).appendField({
name: this.name,
value: this.value
}).submit();
}
});
});
});
})(jQuery);