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DWRActionUtil.js里報錯,stactk overflow at line 28
DWRActionUtil.js的內容
/*
* Copyright 2005 Joe Walker / Alexandru Popescu
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Declare an object to which we can add real functions.
*/
if (dwr == null) var dwr = {};
if (dwr.struts2 == null) dwr.struts2 = {};
if (DWRActionUtil == null) var DWRActionUtil = dwr.struts2;
/** Execute a remote request using DWR */
dwr.struts2.execute = function(action, values, callbackObjOrName) {
var params = {};
if (dwr.struts2.isElement(values)) {
var element = $(values);
var elementName= element.nodeName.toLowerCase();
if (elementName == 'form') {
for (var i = 0; i < element.elements.length; i=i+1) {
var e = element.elements[i];
if (e.name != null && e.name != '') params[e.name] = dwr.util.getValue(e);
}
}
else {
params[element.name] = dwr.util.getValue(element);
}
}
else {
for (var prop in values) {
params[prop]= values[prop];
}
}
// prepare action invocation object
var actionObj = {};
if (typeof action == 'string') {
var lastIdx= action.lastIndexOf('/');
actionObj.executeResult = 'true';
if (lastIdx != -1) {
actionObj.namespace = action.substring(0, lastIdx);
actionObj.action = action.substring(lastIdx + 1);
}
else {
actionObj.namespace= '';
actionObj.action = action;
}
}
else {
actionObj= action;
}
// prepare the DWR callback object
var callbackObj = {};
var mustCall= false;
if (typeof callbackObjOrName == 'string') {
callbackObj.callback = function(dt) { dwr.struts2.callback(dt, eval(callbackObjOrName)); };
mustCall= true;
}
else if (typeof callbackObjOrName == 'function') {
callbackObj.callback = function(dt) { dwr.struts2.callback(dt, callbackObjOrName); };
mustCall= true;
}
else if (typeof callbackObjOrName == 'object' && typeof callbackObjOrName.callback == 'function') {
for (var prop in callbackObjOrName) {
callbackObj[prop] = callbackObjOrName[prop];
}
callbackObj.callback = function(dt) { dwr.struts2.callback(dt, callbackObjOrName.callback); };
mustCall= true;
}
if (mustCall) {
dwr.struts2.execute(actionObj, params, callbackObj);
}
};
/** Execute a remote request using DWR */
dwr.struts2.callback = function(dt, originalCallback) {
if (dt.data) originalCallback(dt.data);
else if (dt.text) originalCallback(dt.text);
else originalCallback(dt);
};
/** Utility to check to see if the passed object is an input element / element id */
dwr.struts2.isElement = function(elementOrId) {
if (typeof elementOrId == "string") {
return true;
}
if (elementOrId.nodeName) {
var name= elementOrId.nodeName.toLowerCase();
if (name == 'input' || name == 'form') {
return true;
}
}
return false;
};
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