jssource/src_files/include/javascript/yui3/build/io/io-form.js

   1 /*
   2 Copyright (c) 2009, Yahoo! Inc. All rights reserved.
   3 Code licensed under the BSD License:
   4 http://developer.yahoo.net/yui/license.txt
   5 version: 3.0.0
   6 build: 1549
   7 */
   8 YUI.add('io-form', function(Y) {
   9
  10    /**
  11     * Extends the IO base class to enable HTML form data serialization, when specified
  12     * in the transaction's configuration object.
  13     * @module io
  14     * @submodule io-form
  15     */
  16
  17     Y.mix(Y.io, {
  18        /**
  19         * @description Method to enumerate through an HTML form's elements collection
  20         * and return a string comprised of key-value pairs.
  21         *
  22         * @method _serialize
  23         * @private
  24         * @static
  25         * @param {object} c - YUI form node or HTML form id.
  26         * @param {string} s - Transaction data defined in the configuration.
  27         * @return string
  28         */
  29         _serialize: function(c, s) {
  30                         var eUC = encodeURIComponent,
  31                 data = [],
  32                 useDf = c.useDisabled || false,
  33                 item = 0,
  34                 id = (typeof c.id === 'string') ? c.id : c.id.getAttribute('id'),
  35                 e, f, n, v, d, i, il, j, jl, o;
  36
  37                 if (!id) {
  38                                         id = Y.guid('io:');
  39                                         c.id.setAttribute('id', id);
  40                                 }
  41
  42                 f = Y.config.doc.getElementById(id);
  43
  44             // Iterate over the form elements collection to construct the
  45             // label-value pairs.
  46             for (i = 0, il = f.elements.length; i < il; ++i) {
  47                 e = f.elements[i];
  48                 d = e.disabled;
  49                 n = e.name;
  50
  51                 if ((useDf) ? n : (n && !d)) {
  52                     n = encodeURIComponent(n) + '=';
  53                     v = encodeURIComponent(e.value);
  54
  55                     switch (e.type) {
  56                         // Safari, Opera, FF all default options.value from .text if
  57                         // value attribute not specified in markup
  58                         case 'select-one':
  59                             if (e.selectedIndex > -1) {
  60                                 o = e.options[e.selectedIndex];
  61                                 data[item++] = n + eUC((o.attributes.value && o.attributes.value.specified) ? o.value : o.text);
  62                             }
  63                             break;
  64                         case 'select-multiple':
  65                             if (e.selectedIndex > -1) {
  66                                 for (j = e.selectedIndex, jl = e.options.length; j < jl; ++j) {
  67                                     o = e.options[j];
  68                                     if (o.selected) {
  69                                       data[item++] = n + eUC((o.attributes.value && o.attributes.value.specified) ? o.value : o.text);
  70                                     }
  71                                 }
  72                             }
  73                             break;
  74                         case 'radio':
  75                         case 'checkbox':
  76                             if(e.checked){
  77                                 data[item++] = n + v;
  78                             }
  79                             break;
  80                         case 'file':
  81                             // stub case as XMLHttpRequest will only send the file path as a string.
  82                         case undefined:
  83                             // stub case for fieldset element which returns undefined.
  84                         case 'reset':
  85                             // stub case for input type reset button.
  86                         case 'button':
  87                             // stub case for input type button elements.
  88                             break;
  89                         case 'submit':
  90                         default:
  91                             data[item++] = n + v;
  92                     }
  93                 }
  94             }
  95             return s ? data.join('&') + "&" + s : data.join('&');
  96         }
  97     }, true);
  98
  99
 100
 101 }, '3.0.0' ,{requires:['io-base','node-base','node-style']});