修复上传组件

src/utils/ajaxfileupload.js

@@ -4,7 +4,6 @@ jQuery.extend({
         if (s.error) {
             s.error.call(s.context || s, xhr, status, e);
         }
-
         // Fire the global callback
         if (s.global) {
             (s.context ? jQuery(s.context) : jQuery.event).trigger("ajaxError", [xhr, s, e]);
@@ -13,17 +12,14 @@ jQuery.extend({
     createUploadIframe: function (id, uri) {
         //create frame
         var frameId = 'jUploadFrame' + id;
-
         if (window.ActiveXObject) {
             var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
             if (typeof uri == 'boolean') {
                 io.src = 'javascript:false';
-            }
-            else if (typeof uri == 'string') {
+            } else if (typeof uri == 'string') {
                 io.src = uri;
             }
-        }
-        else {
+        } else {
             io = document.createElement('iframe');
             io.id = frameId;
             io.name = frameId;
@@ -31,18 +27,21 @@ jQuery.extend({
         io.style.position = 'absolute';
         io.style.top = '-1000px';
         io.style.left = '-1000px';
-
         document.body.appendChild(io);
-
-        return io
+        return io;
     },
     createUploadForm: function (id, fileElementId) {
         //create form	
         var formId = 'jUploadForm' + id;
         var fileId = 'jUploadFile' + id;
-        var form = $('<form  action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
+        var form = $('#' + formId);
+        if (form && form.length > 0) {
+            form.remove();
+        }
+        form = $('<form  action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
         var oldElement = $('#' + fileElementId);
-        var newElement = $(oldElement).clone();
+        var newElement = $(oldElement).clone(true).val("");
+        //须要复制元素的全部事件处理。  
         $(oldElement).attr('id', fileId);
         $(oldElement).before(newElement);
         $(oldElement).appendTo(form);
@@ -53,7 +52,6 @@ jQuery.extend({
         $(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);
@@ -68,7 +66,7 @@ jQuery.extend({
         }
         var requestDone = false;
         // Create the request object
-        var xml = {}
+        var xml = {};
         if (s.global)
             jQuery.event.trigger("ajaxSend", [xml, s]);
         // Wait for a response to come back
@@ -98,7 +96,6 @@ jQuery.extend({
                         // 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", [xml, s]);
@@ -112,30 +109,22 @@ jQuery.extend({
                 // The request was completed
                 if (s.global)
                     jQuery.event.trigger("ajaxComplete", [xml, 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()
-
+                jQuery(io).unbind();
                 setTimeout(function () {
                     try {
                         $(io).remove();
                         $(form).remove();
-
                     } catch (e) {
                         jQuery.handleError(s, xml, null, e);
                     }
-
-                }, 100)
-
-                xml = null
-
+                }, 100);
+                xml = null;
             }
         }
         // Timeout checker
@@ -153,12 +142,23 @@ jQuery.extend({
             $(form).attr('target', frameId);
             if (form.encoding) {
                 form.encoding = 'multipart/form-data';
-            }
-            else {
+            } else {
                 form.enctype = 'multipart/form-data';
             }
-            $(form).submit();
-
+            let submitType = s.submitType;
+            let $form = $(form);
+            if (!submitType || submitType == 'form') {
+                $form.submit();
+            } else if (submitType == 'ajax') {
+                $form.ajaxSubmit({
+                    success: function (data, status) {
+                        s.success(data, status);
+                    },
+                    error: function (err) {
+                        jQuery.handleError(s, xml, null, err);
+                    }
+                });
+            }
         } catch (e) {
             jQuery.handleError(s, xml, null, e);
         }
@@ -169,9 +169,7 @@ jQuery.extend({
             document.getElementById(frameId).addEventListener('load', uploadCallback, false);
         }
         return { abort: function () { } };
-
     },
-
     uploadHttpData: function (r, type) {
         var data = !type;
         data = type == "xml" || data ? r.responseXML : r.responseText;