Hi,
I am trying to write a widget which uses a static XML file which
would be bundled with the widget. I want the XML file to hold the
data for items in a popup menu in the widget. So basically when the
widget starts it needs to read the xml file to get the options in the
menu. I've been trying to figure out how to do this in Javascript and
have been striking out. I've discovered things like XMLHttpRequest(),
but it doesn't seem to do exactly what I need. XMLHttpRequest has a
method "load" which you call like: XMLHttpRequestObject.load("GET",
url, null), where "url" is (I believe) a string representing the URL.
So I thought if I set 'url' to a string representing the local file
name I could read in a local xml file into a DOM object. (I've tried
all kinds of strings representing the local file, the absolute path,
the relative path, file://... file:/... etc.) This is all being done
in an Html file containing some JS code opened in Safari, btw, I'm
trying to get it to work as a regular HTML/Jscript file before trying
to stuff it into a widget. Here's some of the relevant code I'm trying:
...
// handle onreadystatechange event of req object
function processReqChange() {
// only if req shows "loaded"
if (req.readyState == 4) {
// only if "OK"
if (req.status == 200) {
clearTopicList();
buildTopicList();
} else {
alert("There was a problem retrieving the XML data:\n"; +
req.status + " : " + req.statusText);
}
}
}
It fails on the req.open... statement. I get the alert "There was a
problem..." I've tried this with lots of different strings in the
"searches.xml" I wonder if the problem is that it isn't set up to
handle a local file, it wants to send the file request to an http
server.
So, after all that, my question is simply: is there a way to load/
parse a local xml file into a DOM object in javascript that would
work in a widget?
dave r.
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