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/*!
* jQuery Form Plugin
* version: 2.96 (16-FEB-2012)
* @requires jQuery v1.3.2 or later
*
* Examples and documentation at: http://malsup.com/jquery/form/
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
;(function($) {
/*
Usage Note:
-----------
Do not use both ajaxSubmit and ajaxForm on the same form. These
functions are mutually exclusive. Use ajaxSubmit if you want
to bind your own submit handler to the form. For example,
$(document).ready(function() {
$('#myForm').bind('submit', function(e) {
e.preventDefault(); // <-- important
$(this).ajaxSubmit({
target: '#output'
});
});
});
Use ajaxForm when you want the plugin to manage all the event binding
for you. For example,
$(document).ready(function() {
$('#myForm').ajaxForm({
target: '#output'
});
});
You can also use ajaxForm with delegation (requires jQuery v1.7+), so the
form does not have to exist when you invoke ajaxForm:
$('#myForm').ajaxForm({
delegation: true,
target: '#output'
});
When using ajaxForm, the ajaxSubmit function will be invoked for you
at the appropriate time.
*/
/**
* ajaxSubmit() provides a mechanism for immediately submitting
* an HTML form using AJAX.
*/
$.fn.ajaxSubmit = function(options) {
// fast fail if nothing selected (http://dev.jquery.com/ticket/2752)
if (!this.length) {
log('ajaxSubmit: skipping submit process - no element selected');
return this;
}
var method, action, url, $form = this;
if (typeof options == 'function') {
options = { success: options };
}
method = this.attr('method');
action = this.attr('action');
url = (typeof action === 'string') ? $.trim(action) : '';
url = url || window.location.href || '';
if (url) {
// clean url (don't include hash vaue)
url = (url.match(/^([^#]+)/)||[])[1];
}
options = $.extend(true, {
url: url,
success: $.ajaxSettings.success,
type: method || 'GET',
iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript：false' : 'about:blank'
}, options);
// hook for manipulating the form data before it is extracted;
// convenient for use with rich editors like tinyMCE or FCKEditor
var veto = {};
this.trigger('form-pre-serialize', [this, options, veto]);
if (veto.veto) {
log('ajaxSubmit: submit vetoed via form-pre-serialize trigger');
return this;
}
// provide opportunity to alter form data before it is serialized
if (options.beforeSerialize && options.beforeSerialize(this, options) === false) {
log('ajaxSubmit: submit aborted via beforeSerialize callback');
return this;
}
var traditional = options.traditional;
if ( traditional === undefined ) {
traditional = $.ajaxSettings.traditional;
}
var qx,n,v,a = this.formToArray(options.semantic);
if (options.data) {
options.extraData = options.data;
qx = $.param(options.data, traditional);
}
// 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, traditional);
if (qx) {
q = ( q ? (q + '&' + qx) : qx );
}
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 callbacks = [];
if (options.resetForm) {
callbacks.push(function() { $form.resetForm(); });
}
if (options.clearForm) {
callbacks.push(function() { $form.clearForm(options.includeHidden); });
}
// 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 = $('input:file:enabled[value]', this); // [value] (issue #113)
var hasFileInputs = fileInputs.length > 0;
var mp = 'multipart/form-data';
var multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);
var fileAPI = !!(hasFileInputs && fileInputs.get(0).files && window.FormData);
log("fileAPI :" + fileAPI);
var shouldUseFrame = (hasFileInputs || multipart) && !fileAPI;
// 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 && (options.iframe || shouldUseFrame)) {
// 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, function() {
fileUploadIframe(a);
});
}
else {
fileUploadIframe(a);
}
}
else if ((hasFileInputs || multipart) && fileAPI) {
options.progress = options.progress || $.noop;
fileUploadXhr(a);
}
else {
$.ajax(options);
}
// fire 'notify' event
this.trigger('form-submit-notify', [this, options]);
return this;
// XMLHttpRequest Level 2 file uploads (big hat tip to francois2metz)
function fileUploadXhr(a) {
var formdata = new FormData();
for (var i=0; i < a.length; i++) {
if (a[i].type == 'file')
continue;
formdata.append(a[i].name, a[i].value);
}
$form.find('input:file:enabled').each(function(){
var name = $(this).attr('name'), files = this.files;
if (name) {
for (var i=0; i < files.length; i++)
formdata.append(name, files[i]);
}
});
if (options.extraData) {
for (var k in options.extraData)
formdata.append(k, options.extraData[k])
}
options.data = null;
var s = $.extend(true, {}, $.ajaxSettings, options, {
contentType: false,
processData: false,
cache: false,
type: 'POST'
});
//s.context = s.context || s;
s.data = null;
var beforeSend = s.beforeSend;
s.beforeSend = function(xhr, o) {
o.data = formdata;
if(xhr.upload) { // unfortunately, jQuery doesn't expose this prop (http://bugs.jquery.com/ticket/10190)
xhr.upload.onprogress = function(event) {
o.progress(event.position, event.total);
};
}
if(beforeSend)
beforeSend.call(o, xhr, options);
};
$.ajax(s);
}
// private function for handling file uploads (hat tip to YAHOO!)
function fileUploadIframe(a) {
var form = $form[0], el, i, s, g, id, $io, io, xhr, sub, n, timedOut, timeoutHandle;
var useProp = !!$.fn.prop;
if (a) {
if ( useProp ) {
// ensure that every serialized input is still enabled
for (i=0; i < a.length; i++) {
el = $(form[a[i].name]);
el.prop('disabled', false);
}
补充：web前端 , JavaScript ,
