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share/public/js/base/jquery.form.js  view on Meta::CPAN

				}
			}
			else {
				v = options.data[n];
				v = $.isFunction(v) ? v() : v; // if value is fn, invoke it
				a.push( { name: n, value: v } );
			}
		}
	}

	// give pre-submit callback an opportunity to abort the submit
	if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
		log('ajaxSubmit: submit aborted via beforeSubmit callback');
		return this;
	}

	// fire vetoable 'validate' event
	this.trigger('form-submit-validate', [a, this, options, veto]);
	if (veto.veto) {
		log('ajaxSubmit: submit vetoed via form-submit-validate trigger');
		return this;
	}

	var q = $.param(a);

	if (options.type.toUpperCase() == 'GET') {
		options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;
		options.data = null;  // data is null for 'get'
	}
	else {
		options.data = q; // data is the query string for 'post'
	}

	var $form = this, callbacks = [];
	if (options.resetForm) {
		callbacks.push(function() { $form.resetForm(); });
	}
	if (options.clearForm) {
		callbacks.push(function() { $form.clearForm(); });
	}

	// perform a load on the target only if dataType is not provided
	if (!options.dataType && options.target) {
		var oldSuccess = options.success || function(){};
		callbacks.push(function(data) {
			var fn = options.replaceTarget ? 'replaceWith' : 'html';
			$(options.target)[fn](data).each(oldSuccess, arguments);
		});
	}
	else if (options.success) {
		callbacks.push(options.success);
	}

	options.success = function(data, status, xhr) { // jQuery 1.4+ passes xhr as 3rd arg
		var context = options.context || options;   // jQuery 1.4+ supports scope context 
		for (var i=0, max=callbacks.length; i < max; i++) {
			callbacks[i].apply(context, [data, status, xhr || $form, $form]);
		}
	};

	// are there files to upload?
	var fileInputs = $('input:file', this).length > 0;
	var mp = 'multipart/form-data';
	var multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);

	// options.iframe allows user to force iframe mode
	// 06-NOV-09: now defaulting to iframe mode if file input is detected
   if (options.iframe !== false && (fileInputs || options.iframe || multipart)) {
	   // hack to fix Safari hang (thanks to Tim Molendijk for this)
	   // see:  http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
	   if (options.closeKeepAlive) {
		   $.get(options.closeKeepAlive, fileUpload);
		}
	   else {
		   fileUpload();
		}
   }
   else {
		$.ajax(options);
   }

	// fire 'notify' event
	this.trigger('form-submit-notify', [this, options]);
	return this;


	// private function for handling file uploads (hat tip to YAHOO!)
	function fileUpload() {
		var form = $form[0];

		if ($(':input[name=submit],:input[id=submit]', form).length) {
			// if there is an input with a name or id of 'submit' then we won't be
			// able to invoke the submit fn on the form (at least not x-browser)
			alert('Error: Form elements must not have name or id of "submit".');
			return;
		}
		
		var s = $.extend(true, {}, $.ajaxSettings, options);
		s.context = s.context || s;
		var id = 'jqFormIO' + (new Date().getTime()), fn = '_'+id;
		var $io = $('<iframe id="' + id + '" name="' + id + '" src="'+ s.iframeSrc +'" />');
		var io = $io[0];

		$io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });

		var xhr = { // mock object
			aborted: 0,
			responseText: null,
			responseXML: null,
			status: 0,
			statusText: 'n/a',
			getAllResponseHeaders: function() {},
			getResponseHeader: function() {},
			setRequestHeader: function() {},
			abort: function() {
				this.aborted = 1;
				$io.attr('src', s.iframeSrc); // abort op in progress
			}
		};

		var g = s.global;
		// trigger ajax global events so that activity/block indicators work like normal
		if (g && ! $.active++) {
			$.event.trigger("ajaxStart");
		}
		if (g) {
			$.event.trigger("ajaxSend", [xhr, s]);
		}

		if (s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false) {
			if (s.global) { 
				$.active--;
			}
			return;
		}
		if (xhr.aborted) {
			return;
		}

		var timedOut = 0;

		// add submitting element to data if we know it
		var sub = form.clk;
		if (sub) {
			var n = sub.name;
			if (n && !sub.disabled) {
				s.extraData = s.extraData || {};
				s.extraData[n] = sub.value;
				if (sub.type == "image") {
					s.extraData[n+'.x'] = form.clk_x;
					s.extraData[n+'.y'] = form.clk_y;
				}
			}
		}

		// take a breath so that pending repaints get some cpu time before the upload starts
		function doSubmit() {
			// make sure form attrs are set
			var t = $form.attr('target'), a = $form.attr('action');

			// update form attrs in IE friendly way
			form.setAttribute('target',id);
			if (form.getAttribute('method') != 'POST') {
				form.setAttribute('method', 'POST');
			}
			if (form.getAttribute('action') != s.url) {
				form.setAttribute('action', s.url);
			}

			// ie borks in some cases when setting encoding
			if (! s.skipEncodingOverride) {
				$form.attr({
					encoding: 'multipart/form-data',
					enctype:  'multipart/form-data'
				});
			}

			// support timout
			if (s.timeout) {
				setTimeout(function() { timedOut = true; cb(); }, s.timeout);
			}

			// add "extra" data to form if provided in options
			var extraInputs = [];
			try {
				if (s.extraData) {
					for (var n in s.extraData) {
						extraInputs.push(
							$('<input type="hidden" name="'+n+'" value="'+s.extraData[n]+'" />')
								.appendTo(form)[0]);
					}
				}

				// add iframe to doc and submit the form
				$io.appendTo('body');
                io.attachEvent ? io.attachEvent('onload', cb) : io.addEventListener('load', cb, false);
				form.submit();
			}
			finally {
				// reset attrs and remove "extra" input elements
				form.setAttribute('action',a);
				if(t) {
					form.setAttribute('target', t);
				} else {
					$form.removeAttr('target');
				}
				$(extraInputs).remove();
			}
		}

		if (s.forceSync) {
			doSubmit();
		}
		else {
			setTimeout(doSubmit, 10); // this lets dom updates render
		}

share/public/js/base/jquery.form.js  view on Meta::CPAN

					throw 'timeout';
				}

				var isXml = s.dataType == 'xml' || doc.XMLDocument || $.isXMLDoc(doc);
				log('isXml='+isXml);
				if (!isXml && window.opera && (doc.body == null || doc.body.innerHTML == '')) {
					if (--domCheckCount) {
						// in some browsers (Opera) the iframe DOM is not always traversable when
						// the onload callback fires, so we loop a bit to accommodate
						log('requeing onLoad callback, DOM not available');
						setTimeout(cb, 250);
						return;
					}
					// let this fall through because server response could be an empty document
					//log('Could not access iframe DOM after mutiple tries.');
					//throw 'DOMException: not available';
				}

				//log('response detected');
				xhr.responseText = doc.body ? doc.body.innerHTML : doc.documentElement ? doc.documentElement.innerHTML : null; 
				xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
				xhr.getResponseHeader = function(header){
					var headers = {'content-type': s.dataType};
					return headers[header];
				};

				var scr = /(json|script)/.test(s.dataType);
				if (scr || s.textarea) {
					// see if user embedded response in textarea
					var ta = doc.getElementsByTagName('textarea')[0];
					if (ta) {
						xhr.responseText = ta.value;
					}
					else if (scr) {
						// account for browsers injecting pre around json response
						var pre = doc.getElementsByTagName('pre')[0];
						var b = doc.getElementsByTagName('body')[0];
						if (pre) {
							xhr.responseText = pre.textContent;
						}
						else if (b) {
							xhr.responseText = b.innerHTML;
						}
					}			  
				}
				else if (s.dataType == 'xml' && !xhr.responseXML && xhr.responseText != null) {
					xhr.responseXML = toXml(xhr.responseText);
				}
				
				data = httpData(xhr, s.dataType, s);
			}
			catch(e){
				log('error caught:',e);
				ok = false;
				xhr.error = e;
				s.error.call(s.context, xhr, 'error', e);
				g && $.event.trigger("ajaxError", [xhr, s, e]);
			}
			
			if (xhr.aborted) {
				log('upload aborted');
				ok = false;
			}

			// ordering of these callbacks/triggers is odd, but that's how $.ajax does it
			if (ok) {
				s.success.call(s.context, data, 'success', xhr);
				g && $.event.trigger("ajaxSuccess", [xhr, s]);
			}
			
			g && $.event.trigger("ajaxComplete", [xhr, s]);

			if (g && ! --$.active) {
				$.event.trigger("ajaxStop");
			}
			
			s.complete && s.complete.call(s.context, xhr, ok ? 'success' : 'error');

			// clean up
			setTimeout(function() {
				$io.removeData('form-plugin-onload');
				$io.remove();
				xhr.responseXML = null;
			}, 100);
		}

		var toXml = $.parseXML || function(s, doc) { // use parseXML if available (jQuery 1.5+)
			if (window.ActiveXObject) {
				doc = new ActiveXObject('Microsoft.XMLDOM');
				doc.async = 'false';
				doc.loadXML(s);
			}
			else {
				doc = (new DOMParser()).parseFromString(s, 'text/xml');
			}
			return (doc && doc.documentElement && doc.documentElement.nodeName != 'parsererror') ? doc : null;
		};
		var parseJSON = $.parseJSON || function(s) {
			return window['eval']('(' + s + ')');
		};
		
		var httpData = function( xhr, type, s ) { // mostly lifted from jq1.4.4
			var ct = xhr.getResponseHeader('content-type') || '',
				xml = type === 'xml' || !type && ct.indexOf('xml') >= 0,
				data = xml ? xhr.responseXML : xhr.responseText;

			if (xml && data.documentElement.nodeName === 'parsererror') {
				$.error && $.error('parsererror');
			}
			if (s && s.dataFilter) {
				data = s.dataFilter(data, type);
			}
			if (typeof data === 'string') {
				if (type === 'json' || !type && ct.indexOf('json') >= 0) {
					data = parseJSON(data);
				} else if (type === "script" || !type && ct.indexOf("javascript") >= 0) {
					$.globalEval(data);
				}
			}
			return data;
		};