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fix 2nd loading of etemplates in IE, which was broken since r51385, because IE can not use in main window cached object, if it was loaded from a now closed popup/iframe

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We use now jQuery.ajax() instead of native XMLHTTPRequest object from jQuery object of main-window
This commit is contained in:
Ralf Becker 2015-01-27 16:53:11 +00:00
parent cee521d4cd
commit f834ba893b
1 changed files with 30 additions and 45 deletions
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75
etemplate/js/et2_core_xml.js
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@ -13,9 +13,14 @@
"use strict";
/**
* Loads the given URL asynchronously from the server. When the file is loaded,
* the given callback function is called, where "this" is set to the given
* context.
* Loads the given URL asynchronously from the server
*
* We make the Ajax call through main-windows jQuery object, to ensure cached copy
* in main-windows etemplate2 prototype works in IE too!
*
* @param {string} _url
* @param {function} _callback function(_xml)
* @param {object} _context for _callback
*/
function et2_loadXMLFromURL(_url, _callback, _context)
{
@ -24,53 +29,33 @@ function et2_loadXMLFromURL(_url, _callback, _context)
_context = null;
}
if (window.XMLHttpRequest)
{
// Otherwise make an XMLHttpRequest. Tested with Firefox 3.6, Chrome, Opera
var xmlhttp = new XMLHttpRequest();
// Set the callback function
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4)
{
if(xmlhttp.responseXML)
{
var xmldoc = xmlhttp.responseXML.documentElement;
_callback.call(_context, xmldoc);
}
// Sometimes it's not recogized as XML - reason unknown
else if (xmlhttp.response)
{
egw().debug("log","File was not recogized as XML, trying to parse text...");
var response = xmlhttp.response.replace(/^\s+|\s+$/g,'');
// Manually parse from text
var parser = new DOMParser();
try {
var xmldoc = parser.parseFromString(response, "text/xml");
egw().debug("log","Parsed OK");
_callback.call(_context, xmldoc.documentElement);
} catch (e) {
egw().debug("log", "Well, that didn't work");
}
}
}
}
// Force the browser to interpret the result as XML. overrideMimeType is
// non-standard, so we check for its existance.
if (xmlhttp.overrideMimeType)
// use window object from main window with same algorithm as for the template cache
var win;
try {
if (opener && opener.etemplate2)
{
xmlhttp.overrideMimeType("application/xml");
win = opener;
}
// Retrieve the script asynchronously
xmlhttp.open("GET", _url, true);
xmlhttp.send(null);
}
else
catch (e) {
// catch security exception if opener is from a different domain
}
if (typeof win == "undefined")
{
throw("XML Request object could not be created!");
win = top;
}
win.jQuery.ajax({
url: _url,
context: _context,
type: 'GET',
dataType: 'xml',
success: function(_data, _status, _xmlhttp){
_callback.call(_context, _data.documentElement);
},
error: function(_xmlhttp, _err) {
alert('Loading eTemplate from '+_url+' failed! '+_err);
}
});
}
function et2_directChildrenByTagName(_node, _tagName)