常用的两种ajax上传文件的方式
发布时间：2020-12-16 02:10:48 所属栏目：百科 来源：网络整理
导读：转自 ：Iteye fenglingcompany 备份==================== 一，ajaxfileupload Java代码 %@ page language="java" import="java.util.*" pageEncoding="utf-8"%%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%%@ taglib uri="http://java.sun
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转自 ：Iteye fenglingcompany
备份==================== 一，ajaxfileupload Java代码
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/fn" %>
<%@ taglib prefix="cus" uri="http://web.microcare.com/tag"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script type="text/javascript" src="/tpl/html/common/ajaxfileupload/ajaxfileupload.js"></script>
<c:import url="${contextpath}/tpl/html/appuploadjs.jsp" />
</head>
<body>
<input type=file id="appFile" name="appFile" onchange="getValue();" style="-moz-opacity:0;filter:alpha(opacity=0);opacity:0;position:absolute;left:166px;" />
<input id="appFilename" style="color: green;border: 1px solid green;width:300px;" />
<input type="button" value="File" style="border: 1px solid green;width:80px;" />
</body>
</html>
代码
<%@ page contentType="text/html;charset=UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<script type="text/javascript">
function getValue(){
document.getElementById('appFilename').value = document.getElementById('appFile').value;
validateImage();
ajaxFileUpload();
}
function ajaxFileUpload()
{
/* $("#loading")
.ajaxStart(function(){
$(this).show();
})
.ajaxComplete(function(){
$(this).hide();
}); */
$.ajaxFileUpload
(
{
<a href="/admin/blogs/'/json/dff.action?op=App.upload'">url:'/json/dff.action?op=App.upload'</a>,secureuri:false,fileElementId:'appFile',dataType: 'json',success: function (data,status)
{
alert("1"+data);
alert("5"+data.data.errorCode);
if(typeof(data.errorCode) != undefined)
{
alert(data.data.errorCode);
}
},error: function (data,status,e)
{
alert("2"+data);
alert("3"+status);
alert("4"+e);
}
}
)
return false;
}
//校验图片格式及大小 Add Date 2012-6-14 LIUYI
function validateImage() {
var tmpFileValue = document.getElementById('appFilename').value;
//校验图片格式
if(/^.*?.(apk|ipa)$/.test(tmpFileValue.toLowerCase())){
return true;
} else {
alert("只能上传apk和ipa格式的文件！");
return false;
}
if(file.value == ""){
alert("请选择上传的文件!");
return false;
}
}
</script>代码
jQuery.extend({
createUploadIframe: function(id,uri)
{
//create frame
var frameId = 'jUploadFrame' + id;
var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"';
if(window.ActiveXObject)
{
if(typeof uri== 'boolean'){
iframeHtml += ' src="' + 'javascript:false' + '"';
}
else if(typeof uri== 'string'){
iframeHtml += ' src="' + uri + '"';
}
}
iframeHtml += ' />';
jQuery(iframeHtml).appendTo(document.body);
return jQuery('#' + frameId).get(0);
},createUploadForm: function(id,fileElementId,data)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = jQuery('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
if(data)
{
for(var i in data)
{
jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form);
}
}
var oldElement = jQuery('#' + fileElementId);
var newElement = jQuery(oldElement).clone();
jQuery(oldElement).attr('id',fileId);
jQuery(oldElement).before(newElement);
jQuery(oldElement).appendTo(form);
//set attributes
jQuery(form).css('position','absolute');
jQuery(form).css('top','-1200px');
jQuery(form).css('left','-1200px');
jQuery(form).appendTo('body');
return form;
},ajaxFileUpload: function(s) {
// TODO introduce global settings,allowing the client to modify them for all requests,not only timeout
s = jQuery.extend({},jQuery.ajaxSettings,s);
var id = new Date().getTime()
var form = jQuery.createUploadForm(id,s.fileElementId,(typeof(s.data)=='undefined'?false:s.data));
var io = jQuery.createUploadIframe(id,s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
{
jQuery.event.trigger( "ajaxStart" );
}
var requestDone = false;
// Create the request object
var xml = {}
if ( s.global )
jQuery.event.trigger("ajaxSend",[xml,s]);
// Wait for a response to come back
var uploadCallback = function(isTimeout)
{
var io = document.getElementById(frameId);
try
{
if(io.contentWindow)
{
xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;
}else if(io.contentDocument)
{
xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
}
}catch(e)
{
jQuery.handleError(s,xml,null,e);
}
if ( xml || isTimeout == "timeout")
{
requestDone = true;
var status;
try {
status = isTimeout != "timeout" ? "success" : "error";
// Make sure that the request was successful or notmodified
if ( status != "error" )
{
// process the data (runs the xml through httpData regardless of callback)
var data = jQuery.uploadHttpData( xml,s.dataType );
// If a local callback was specified,fire it and pass it the data
if ( s.success )
s.success( data,status );
// Fire the global callback
if( s.global )
jQuery.event.trigger( "ajaxSuccess",s] );
} else
jQuery.handleError(s,status);
} catch(e)
{
status = "error";
jQuery.handleError(s,e);
}
// The request was completed
if( s.global )
jQuery.event.trigger( "ajaxComplete",s] );
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
// Process result
if ( s.complete )
s.complete(xml,status);
jQuery(io).unbind()
setTimeout(function()
{ try
{
jQuery(io).remove();
jQuery(form).remove();
} catch(e)
{
jQuery.handleError(s,e);
}
},100)
xml = null
}
}
// Timeout checker
if ( s.timeout > 0 )
{
setTimeout(function(){
// Check to see if the request is still happening
if( !requestDone ) uploadCallback( "timeout" );
},s.timeout);
}
try
{
var form = jQuery('#' + formId);
jQuery(form).attr('action',s.url);
jQuery(form).attr('method','POST');
jQuery(form).attr('target',frameId);
if(form.encoding)
{
jQuery(form).attr('encoding','multipart/form-data');
}
else
{
jQuery(form).attr('enctype','multipart/form-data');
}
jQuery(form).submit();
} catch(e)
{
jQuery.handleError(s,e);
}
jQuery('#' + frameId).load(uploadCallback );
return {abort: function () {}};
},uploadHttpData: function( r,type ) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// If the type is "script",eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object,if JSON is used.
if ( type == "json" )
eval( "data = " + data );
// evaluate scripts within html
if ( type == "html" )
jQuery("<div>").html(data).evalScripts();
return data;
},handleError: function( s,xhr,e ) {
// If a local callback was specified,fire it
if ( s.error ) {
s.error.call( s.context || s,e );
}
// Fire the global callback
if ( s.global ) {
(s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError",[xhr,s,e] );
}
}
})
代码
上传文档:
<script src="/js/common/AjaxUpload.js" type="text/javascript"></script>
<div class="uploadFile">
<span id="doc"><input type="text" disabled="disabled" /></span>
<input type="hidden" id="hidFileName" />
<input type="button" id="btnUploadFile" value="上传" />
<input type="button" id="btnDeleteFile" value="删除" />
</div>
上传图片:
<div class="uploadImg">
<img id="imgShow" src="/images/nophoto.gif" />
<input type="hidden" id="hidImgName" />
<input type="button" id="btnUploadImg" value="上传" />
<input type="button" id="btnDeleteImg" value="删除" />
</div>
window.onload = function() {
init(); //初始化
}
//初始化
function init() {
//初始化文档上传
var btnFile = document.getElementById("btnUploadFile");
var doc = document.getElementById("doc");
var hidFileName = document.getElementById("hidFileName");
document.getElementById("btnDeleteFile").onclick = function() { DelFile(doc,hidFileName); };
g_AjxUploadFile(btnFile,doc,hidFileName);
//初始化图片上传
var btnImg = document.getElementById("btnUploadImg");
var img = document.getElementById("imgShow");
var hidImgName = document.getElementById("hidImgName");
document.getElementById("btnDeleteImg").onclick = function() { DelImg(img,hidImgName); };
g_AjxUploadImg(btnImg,img,hidImgName);
}
var g_AjxTempDir = "/file/temp/";
//文档上传
function g_AjxUploadFile(btn,hidPut,action) {
var button = btn,interval;
new AjaxUpload(button,{
action: ((action == null || action == undefined) ? '/Common/UploadHandler.ashx?fileType=file' : action),data: {},name: 'myfile',onSubmit: function(file,ext) {
if (!(ext && /^(rar|zip|pdf|pdfx|txt|csv|xls|xlsx|doc|docx|RAR|ZIP|PDF|PDFX|TXT|CSV|XLS|XLSX|DOC|DOCX)$/.test(ext))) {
alert("您上传的文档格式不对，请重新选择！");
return false;
}
},onComplete: function(file,response) {
flagValue = response;
if (flagValue == "1") {
alert("您上传的文档格式不对，请重新选择！");
}
else if (flagValue == "2") {
alert("您上传的文档大于2M，请重新选择！");
}
else if (flagValue == "3") {
alert("文档上传失败！");
}
else {
hidPut.value = response;
doc.innerHTML="<a href='" + g_AjxTempDir + response + "' target='_blank'>" + response + "</a>";
}
}
});
}
//图片上传
function g_AjxUploadImg(btn,hidPut) {
var button = btn,{
action: '/Common/UploadHandler.ashx?fileType=img',ext) {
if (!(ext && /^(jpg|JPG|png|PNG|gif|GIF)$/.test(ext))) {
alert("您上传的图片格式不对，请重新选择！");
return false;
}
},response) {
flagValue = response;
if (flagValue == "1") {
alert("您上传的图片格式不对，请重新选择！");
}
else if (flagValue == "2") {
alert("您上传的图片大于200K，请重新选择！");
}
else if (flagValue == "3") {
alert("图片上传失败！");
}
else {
hidPut.value = response;
img.src = g_AjxTempDir + response;
}
}
});
}
//删除文档
function DelFile(doc,hidPut) {
hidPut.value = "";
doc.innerHTML = "<input type="text" disabled="disabled" />";
}
//删除图片
function DelImg(img,hidPut) {
hidPut.value = "";
img.src = "/images/nophoto.gif";
}
css代码
/*上传文件*/
.uploadFile{margin-bottom:10px;}
/*上传图片*/
.uploadImg{}
.uploadImg img{width:102px; height:64px; border:1px solid #CCCCCC; display: block;}
代码
/**
* AJAX Upload ( http://valums.com/ajax-upload/ )
* Copyright (c) Andris Valums
* Licensed under the MIT license ( http://valums.com/mit-license/ )
* Thanks to Gary Haran,David Mark,Corey Burns and others for contributions
*/
(function () {
/* global window */
/* jslint browser: true,devel: true,undef: true,nomen: true,bitwise: true,regexp: true,newcap: true,immed: true */
/**
* Wrapper for FireBug's console.log
*/
function log() {
if (typeof(console) != 'undefined' && typeof(console.log) == 'function') {
Array.prototype.unshift.call(arguments,'[Ajax Upload]');
console.log(Array.prototype.join.call(arguments,' '));
}
}
/**
* Attaches event to a dom element.
* @param {Element} el
* @param type event name
* @param fn callback This refers to the passed element
*/
function addEvent(el,type,fn) {
if (el.addEventListener) {
el.addEventListener(type,fn,false);
} else if (el.attachEvent) {
el.attachEvent('on' + type,function () {
fn.call(el);
});
} else {
throw new Error('not supported or DOM not loaded');
}
}
/**
* Attaches resize event to a window,limiting
* number of event fired. Fires only when encounteres
* delay of 100 after series of events.
*
* Some browsers fire event multiple times when resizing
* http://www.quirksmode.org/dom/events/resize.html
*
* @param fn callback This refers to the passed element
*/
function addResizeEvent(fn) {
var timeout;
addEvent(window,'resize',function () {
if (timeout) {
clearTimeout(timeout);
}
timeout = setTimeout(fn,100);
});
}
// Needs more testing,will be rewriten for next version
// getOffset function copied from jQuery lib (http://jquery.com/)
if (document.documentElement.getBoundingClientRect) {
// Get Offset using getBoundingClientRect
// http://ejohn.org/blog/getboundingclientrect-is-awesome/
var getOffset = function (el) {
var box = el.getBoundingClientRect();
var doc = el.ownerDocument;
var body = doc.body;
var docElem = doc.documentElement; // for ie
var clientTop = docElem.clientTop || body.clientTop || 0;
var clientLeft = docElem.clientLeft || body.clientLeft || 0;
// In Internet Explorer 7 getBoundingClientRect property is treated as physical,// while others are logical. Make all logical,like in IE8.
var zoom = 1;
if (body.getBoundingClientRect) {
var bound = body.getBoundingClientRect();
zoom = (bound.right - bound.left) / body.clientWidth;
}
if (zoom > 1) {
clientTop = 0;
clientLeft = 0;
}
var top = box.top / zoom + (window.pageYOffset || docElem && docElem.scrollTop / zoom || body.scrollTop / zoom) - clientTop,left = box.left / zoom + (window.pageXOffset || docElem && docElem.scrollLeft / zoom || body.scrollLeft / zoom) - clientLeft;
return {
top: top,left: left
};
};
} else {
// Get offset adding all offsets
var getOffset = function (el) {
var top = 0,left = 0;
do {
top += el.offsetTop || 0;
left += el.offsetLeft || 0;
el = el.offsetParent;
} while (el);
return {
left: left,top: top
};
};
}
/**
* Returns left,top,right and bottom properties describing the border-box,* in pixels,with the top-left relative to the body
* @param {Element} el
* @return {Object} Contains left,right,bottom
*/
function getBox(el) {
var left,bottom;
var offset = getOffset(el);
left = offset.left;
top = offset.top;
right = left + el.offsetWidth;
bottom = top + el.offsetHeight;
return {
left: left,right: right,top: top,bottom: bottom
};
}
/**
* Helper that takes object literal
* and add all properties to element.style
* @param {Element} el
* @param {Object} styles
*/
function addStyles(el,styles) {
for (var name in styles) {
if (styles.hasOwnProperty(name)) {
el.style[name] = styles[name];
}
}
}
/**
* Function places an absolutely positioned
* element on top of the specified element
* copying position and dimentions.
* @param {Element} from
* @param {Element} to
*/
function copyLayout(from,to) {
var box = getBox(from);
addStyles(to,{
position: 'absolute',left: box.left + 'px',top: box.top + 'px',width: from.offsetWidth + 'px',height: from.offsetHeight + 'px'
});
}
/**
* Creates and returns element from html chunk
* Uses innerHTML to create an element
*/
var toElement = (function () {
var div = document.createElement('div');
return function (html) {
div.innerHTML = html;
var el = div.firstChild;
return div.removeChild(el);
};
})();
/**
* Function generates unique id
* @return unique id
*/
var getUID = (function () {
var id = 0;
return function () {
return 'ValumsAjaxUpload' + id++;
};
})();
/**
* Get file name from path
* @param {String} file path to file
* @return filename
*/
function fileFromPath(file) {
return file.replace(/.*(/|)/,"");
}
/**
* Get file extension lowercase
* @param {String} file name
* @return file extenstion
*/
function getExt(file) {
return (-1 !== file.indexOf('.')) ? file.replace(/.*[.]/,'') : '';
}
function hasClass(el,name) {
var re = new RegExp('b' + name + 'b');
return re.test(el.className);
}
function addClass(el,name) {
if (!hasClass(el,name)) {
el.className += ' ' + name;
}
}
function removeClass(el,name) {
var re = new RegExp('b' + name + 'b');
el.className = el.className.replace(re,'');
}
function removeNode(el) {
el.parentNode.removeChild(el);
}
/**
* Easy styling and uploading
* @constructor
* @param button An element you want convert to
* upload button. Tested dimentions up to 500x500px
* @param {Object} options See defaults below.
*/
window.AjaxUpload = function (button,options) {
this._settings = {
// Location of the server-side upload script
action: 'upload.php',// File upload name
name: 'userfile',// Additional data to send
data: {},// Submit file as soon as it's selected
autoSubmit: true,// The type of data that you're expecting back from the server.
// html and xml are detected automatically.
// Only useful when you are using json data as a response.
// Set to "json" in that case.
responseType: false,// Class applied to button when mouse is hovered
hoverClass: 'hover',// Class applied to button when AU is disabled
disabledClass: 'disabled',// When user selects a file,useful with autoSubmit disabled
// You can return false to cancel upload
onChange: function (file,extension) {},// Callback to fire before file is uploaded
// You can return false to cancel upload
onSubmit: function (file,// Fired when file upload is completed
// WARNING! DO NOT USE "FALSE" STRING AS A RESPONSE!
onComplete: function (file,response) {}
};
// Merge the users options with our defaults
for (var i in options) {
if (options.hasOwnProperty(i)) {
this._settings[i] = options[i];
}
}
// button isn't necessary a dom element
if (button.jquery) {
// jQuery object was passed
button = button[0];
} else if (typeof button == "string") {
if (/^#.*/.test(button)) {
// If jQuery user passes #elementId don't break it
button = button.slice(1);
}
button = document.getElementById(button);
}
if (!button || button.nodeType !== 1) {
throw new Error("Please make sure that you're passing a valid element");
}
if (button.nodeName.toUpperCase() == 'A') {
// disable link
addEvent(button,'click',function (e) {
if (e && e.preventDefault) {
e.preventDefault();
} else if (window.event) {
window.event.returnValue = false;
}
});
}
// DOM element
this._button = button;
// DOM element
this._input = null;
// If disabled clicking on button won't do anything
this._disabled = false;
// if the button was disabled before refresh if will remain
// disabled in FireFox,let's fix it
this.enable();
this._rerouteClicks();
};
// assigning methods to our class
AjaxUpload.prototype = {
setData: function (data) {
this._settings.data = data;
},disable: function () {
addClass(this._button,this._settings.disabledClass);
this._disabled = true;
var nodeName = this._button.nodeName.toUpperCase();
if (nodeName == 'INPUT' || nodeName == 'BUTTON') {
this._button.setAttribute('disabled','disabled');
}
// hide input
if (this._input) {
// We use visibility instead of display to fix problem with Safari 4
// The problem is that the value of input doesn't change if it
// has display none when user selects a file
this._input.parentNode.style.visibility = 'hidden';
}
},enable: function () {
removeClass(this._button,this._settings.disabledClass);
this._button.removeAttribute('disabled');
this._disabled = false;
},/**
* Creates invisible file input
* that will hover above the button
* <div><input type='file' /></div>
*/
_createInput: function () {
var self = this;
var input = document.createElement("input");
input.setAttribute('type','file');
input.setAttribute('name',this._settings.name);
addStyles(input,{
'position': 'absolute',// in Opera only 'browse' button
// is clickable and it is located at
// the right side of the input
'right': 0,'margin': 0,'padding': 0,'fontSize': '480px','cursor': 'pointer'
});
var div = document.createElement("div");
addStyles(div,{
'display': 'block','position': 'absolute','overflow': 'hidden','opacity': 0,// Make sure browse button is in the right side
// in Internet Explorer
'direction': 'ltr',//Max zIndex supported by Opera 9.0-9.2
'zIndex': 2147483583
});
// Make sure that element opacity exists.
// Otherwise use IE filter
if (div.style.opacity !== "0") {
if (typeof(div.filters) == 'undefined') {
throw new Error('Opacity not supported by the browser');
}
div.style.filter = "alpha(opacity=0)";
}
addEvent(input,'change',function () {
if (!input || input.value === '') {
return;
}
// Get filename from input,required
// as some browsers have path instead of it
var file = fileFromPath(input.value);
if (false === self._settings.onChange.call(self,file,getExt(file))) {
self._clearInput();
return;
}
// Submit form when value is changed
if (self._settings.autoSubmit) {
self.submit();
}
});
addEvent(input,'mouSEOver',function () {
addClass(self._button,self._settings.hoverClass);
});
addEvent(input,'mouSEOut',function () {
removeClass(self._button,self._settings.hoverClass);
// We use visibility instead of display to fix problem with Safari 4
// The problem is that the value of input doesn't change if it
// has display none when user selects a file
input.parentNode.style.visibility = 'hidden';
});
div.appendChild(input);
document.body.appendChild(div);
this._input = input;
},_clearInput: function () {
if (!this._input) {
return;
}
// this._input.value = ''; Doesn't work in IE6
removeNode(this._input.parentNode);
this._input = null;
this._createInput();
removeClass(this._button,this._settings.hoverClass);
},/**
* Function makes sure that when user clicks upload button,* the this._input is clicked instead
*/
_rerouteClicks: function () {
var self = this;
// IE will later display 'access denied' error
// if you use using self._input.click()
// other browsers just ignore click()
addEvent(self._button,function () {
if (self._disabled) {
return;
}
if (!self._input) {
self._createInput();
}
var div = self._input.parentNode;
copyLayout(self._button,div);
div.style.visibility = 'visible';
});
// commented because we now hide input on mouseleave
/**
* When the window is resized the elements
* can be misaligned if button position depends
* on window size
*/
//addResizeEvent(function(){
// if (self._input){
// copyLayout(self._button,self._input.parentNode);
// }
//});
},/**
* Creates iframe with unique name
* @return {Element} iframe
*/
_createIframe: function () {
// We can't use getTime,because it sometimes return
// same value in safari :(
var id = getUID();
// We can't use following code as the name attribute
// won't be properly registered in IE6,and new window
// on form submit will open
// var iframe = document.createElement('iframe');
// iframe.setAttribute('name',id);
var iframe = toElement('<iframe src="javascript:false;" name="' + id + '" />');
// src="javascript:false; was added
// because it possibly removes ie6 prompt
// "This page contains both secure and nonsecure items"
// Anyway,it doesn't do any harm.
iframe.setAttribute('id',id);
iframe.style.display = 'none';
document.body.appendChild(iframe);
return iframe;
},/**
* Creates form,that will be submitted to iframe
* @param {Element} iframe Where to submit
* @return {Element} form
*/
_createForm: function (iframe) {
var settings = this._settings;
// We can't use the following code in IE6
// var form = document.createElement('form');
// form.setAttribute('method','post');
// form.setAttribute('enctype','multipart/form-data');
// Because in this case file won't be attached to request
var form = toElement('<form method="post" enctype="multipart/form-data"></form>');
form.setAttribute('action',settings.action);
form.setAttribute('target',iframe.name);
form.style.display = 'none';
document.body.appendChild(form);
// Create hidden input element for each data key
for (var prop in settings.data) {
if (settings.data.hasOwnProperty(prop)) {
var el = document.createElement("input");
el.setAttribute('type','hidden');
el.setAttribute('name',prop);
el.setAttribute('value',settings.data[prop]);
form.appendChild(el);
}
}
return form;
},/**
* Gets response from iframe and fires onComplete event when ready
* @param iframe
* @param file Filename to use in onComplete callback
*/
_getResponse: function (iframe,file) {
// getting response
var toDeleteFlag = false,self = this,settings = this._settings;
addEvent(iframe,'load',function () {
if ( // For Safari
iframe.src == "javascript:'%3Chtml%3E%3C/html%3E';" ||
// For FF,IE
iframe.src == "javascript:'<html></html>';") {
// First time around,do not delete.
// We reload to blank page,so that reloading main page
// does not re-submit the post.
if (toDeleteFlag) {
// Fix busy state in FF3
setTimeout(function () {
removeNode(iframe);
},0);
}
return;
}
var doc = iframe.contentDocument ? iframe.contentDocument : window.frames[iframe.id].document;
// fixing Opera 9.26,10.00
if (doc.readyState && doc.readyState != 'complete') {
// Opera fires load event multiple times
// Even when the DOM is not ready yet
// this fix should not affect other browsers
return;
}
// fixing Opera 9.64
if (doc.body && doc.body.innerHTML == "false") {
// In Opera 9.64 event was fired second time
// when body.innerHTML changed from false
// to server response approx. after 1 sec
return;
}
var response;
if (doc.XMLDocument) {
// response is a xml document Internet Explorer property
response = doc.XMLDocument;
} else if (doc.body) {
// response is html document or plain text
response = doc.body.innerHTML;
if (settings.responseType && settings.responseType.toLowerCase() == 'json') {
// If the document was sent as 'application/javascript' or
// 'text/javascript',then the browser wraps the text in a <pre>
// tag and performs html encoding on the contents. In this case,// we need to pull the original text content from the text node's
// nodeValue property to retrieve the unmangled content.
// Note that IE6 only understands text/html
if (doc.body.firstChild && doc.body.firstChild.nodeName.toUpperCase() == 'PRE') {
response = doc.body.firstChild.firstChild.nodeValue;
}
if (response) {
response = eval("(" + response + ")");
} else {
response = {};
}
}
} else {
// response is a xml document
response = doc;
}
settings.onComplete.call(self,response);
// Reload blank page,so that reloading main page
// does not re-submit the post. Also,remember to
// delete the frame
toDeleteFlag = true;
// Fix IE mixed content issue
iframe.src = "javascript:'<html></html>';";
});
},/**
* Upload file contained in this._input
*/
submit: function () {
var self = this,settings = this._settings;
if (!this._input || this._input.value === '') {
return;
}
var file = fileFromPath(this._input.value);
// user returned false to cancel upload
if (false === settings.onSubmit.call(this,getExt(file))) {
this._clearInput();
return;
}
// sending request
var iframe = this._createIframe();
var form = this._createForm(iframe);
// assuming following structure
// div -> input type='file'
removeNode(this._input.parentNode);
removeClass(self._button,self._settings.hoverClass);
form.appendChild(this._input);
form.submit();
// request set,clean up
removeNode(form);
form = null;
removeNode(this._input);
this._input = null;
// Get response from iframe and fire onComplete event when ready
this._getResponse(iframe,file);
// get ready for next request
this._createInput();
}
};
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