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define("dojo/dom-form", ["./_base/lang", "./dom", "./io-query", "./json"], function(lang, dom, ioq, json){
// module:
// dojo/dom-form
function setValue(/*Object*/ obj, /*String*/ name, /*String*/ value){
// summary:
// For the named property in object, set the value. If a value
// already exists and it is a string, convert the value to be an
// array of values.
// Skip it if there is no value
if(value === null){
return;
}
var val = obj[name];
if(typeof val == "string"){ // inline'd type check
obj[name] = [val, value];
}else if(lang.isArray(val)){
val.push(value);
}else{
obj[name] = value;
}
}
var exclude = "file|submit|image|reset|button";
var form = {
// summary:
// This module defines form-processing functions.
fieldToObject: function fieldToObject(/*DOMNode|String*/ inputNode){
// summary:
// Serialize a form field to a JavaScript object.
// description:
// Returns the value encoded in a form field as
// as a string or an array of strings. Disabled form elements
// and unchecked radio and checkboxes are skipped. Multi-select
// elements are returned as an array of string values.
// inputNode: DOMNode|String
// returns: Object
var ret = null;
inputNode = dom.byId(inputNode);
if(inputNode){
var _in = inputNode.name, type = (inputNode.type || "").toLowerCase();
if(_in && type && !inputNode.disabled){
if(type == "radio" || type == "checkbox"){
if(inputNode.checked){
ret = inputNode.value;
}
}else if(inputNode.multiple){
ret = [];
var nodes = [inputNode.firstChild];
while(nodes.length){
for(var node = nodes.pop(); node; node = node.nextSibling){
if(node.nodeType == 1 && node.tagName.toLowerCase() == "option"){
if(node.selected){
ret.push(node.value);
}
}else{
if(node.nextSibling){
nodes.push(node.nextSibling);
}
if(node.firstChild){
nodes.push(node.firstChild);
}
break;
}
}
}
}else{
ret = inputNode.value;
}
}
}
return ret; // Object
},
toObject: function formToObject(/*DOMNode|String*/ formNode){
// summary:
// Serialize a form node to a JavaScript object.
// description:
// Returns the values encoded in an HTML form as
// string properties in an object which it then returns. Disabled form
// elements, buttons, and other non-value form elements are skipped.
// Multi-select elements are returned as an array of string values.
// formNode: DOMNode|String
// example:
// This form:
// | <form id="test_form">
// | <input type="text" name="blah" value="blah">
// | <input type="text" name="no_value" value="blah" disabled>
// | <input type="button" name="no_value2" value="blah">
// | <select type="select" multiple name="multi" size="5">
// | <option value="blah">blah</option>
// | <option value="thud" selected>thud</option>
// | <option value="thonk" selected>thonk</option>
// | </select>
// | </form>
//
// yields this object structure as the result of a call to
// formToObject():
//
// | {
// | blah: "blah",
// | multi: [
// | "thud",
// | "thonk"
// | ]
// | };
var ret = {}, elems = dom.byId(formNode).elements;
for(var i = 0, l = elems.length; i < l; ++i){
var item = elems[i], _in = item.name, type = (item.type || "").toLowerCase();
if(_in && type && exclude.indexOf(type) < 0 && !item.disabled){
setValue(ret, _in, form.fieldToObject(item));
if(type == "image"){
ret[_in + ".x"] = ret[_in + ".y"] = ret[_in].x = ret[_in].y = 0;
}
}
}
return ret; // Object
},
toQuery: function formToQuery(/*DOMNode|String*/ formNode){
// summary:
// Returns a URL-encoded string representing the form passed as either a
// node or string ID identifying the form to serialize
// formNode: DOMNode|String
// returns: String
return ioq.objectToQuery(form.toObject(formNode)); // String
},
toJson: function formToJson(/*DOMNode|String*/ formNode, /*Boolean?*/ prettyPrint){
// summary:
// Create a serialized JSON string from a form node or string
// ID identifying the form to serialize
// formNode: DOMNode|String
// prettyPrint: Boolean?
// returns: String
return json.stringify(form.toObject(formNode), null, prettyPrint ? 4 : 0); // String
}
};
return form;
});
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