io-form.js revision a23a8b9cc849a2aa697a3820f45e1b0f652f4e53
YUI.add('io-form', function(Y) {
/**
* Extends IO to enable HTML form data serialization, when specified
* in the transaction's configuration object.
* @module io-base
* @submodule io-form
* @for IO
*/
var eUC = encodeURIComponent;
Y.mix(Y.IO.prototype, {
/**
* Method to enumerate through an HTML form's elements collection
* and return a string comprised of key-value pairs.
*
* @method _serialize
* @private
* @static
* @param {Object} c - YUI form node or HTML form id.
* @param {String} s - Key-value data defined in the configuration object.
* @return {String}
*/
_serialize: function(c, s) {
var data = [],
df = c.useDisabled || false,
item = 0,
id = (typeof c.id === 'string') ? c.id : c.id.getAttribute('id'),
e, f, n, v, d, i, il, j, jl, o;
if (!id) {
id = Y.guid('io:');
c.id.setAttribute('id', id);
}
f = Y.config.doc.getElementById(id);
// Iterate over the form elements collection to construct the
// label-value pairs.
for (i = 0, il = f.elements.length; i < il; ++i) {
e = f.elements[i];
d = e.disabled;
n = e.name;
if (df ? n : n && !d) {
n = eUC(n) + '=';
v = eUC(e.value);
switch (e.type) {
// Safari, Opera, FF all default options.value from .text if
// value attribute not specified in markup
case 'select-one':
if (e.selectedIndex > -1) {
o = e.options[e.selectedIndex];
data[item++] = n + eUC(o.attributes.value && o.attributes.value.specified ? o.value : o.text);
}
break;
case 'select-multiple':
if (e.selectedIndex > -1) {
for (j = e.selectedIndex, jl = e.options.length; j < jl; ++j) {
o = e.options[j];
if (o.selected) {
data[item++] = n + eUC(o.attributes.value && o.attributes.value.specified ? o.value : o.text);
}
}
}
break;
case 'radio':
case 'checkbox':
if (e.checked) {
data[item++] = n + v;
}
break;
case 'file':
// stub case as XMLHttpRequest will only send the file path as a string.
case undefined:
// stub case for fieldset element which returns undefined.
case 'reset':
// stub case for input type reset button.
case 'button':
// stub case for input type button elements.
break;
case 'submit':
default:
data[item++] = n + v;
}
}
}
return s ? data.join('&') + "&" + s : data.join('&');
}
}, true);
}, '@VERSION@' ,{requires:['io-base','node-base']});