[Xsltforms-support] bug?

[Stephen C. <ste...@gm...>]

Hello,

I have a problem with an XForms Schema designer "app" that I am building
based on XSLTForms

I get an exception thrown that causes the view to freeze up. The problem
can be replicated here:

http://collinta.com.au/xsltforms/designer.xml

(Note: in FF minimize and maximise the window after it loads in, seems to
be FF bug)

You will see two repeats one on the left which is a list of schema elements
1 to 5 and one in the middle which shows the children of the specific
element selected on the left.

Its possible to select each of elements 1 to 5 no problems. But if you
select element 1, that contains a sequence of two elements a and b, and
then select any two items (order seems irrelevant) you should see the view
freeze up.

This occurs in Firefox 9.0.1 and IE 9.0.

In FF Error Console I see an error that occurs on line 5882 (marked by >>
below), namely "this.select.firstChild is null":

XsltForms_select.prototype.setValue = function(value) {
	if (!this.full && (!value || value === "")) {
		this.selectedOptions = [];
		if (this.select.firstChild.value !== "\xA0") {
			var empty = this.select.options[0].cloneNode(true);
			empty.value = "\xA0";
			empty.text = "\xA0";
			empty.id = "";
			this.select.insertBefore(empty, this.select.options[0]);
			this.select.selectedIndex = 0;
		}
	} else {
>>		if (!this.full && this.select.firstChild.value === "\xA0") {
			this.select.removeChild(this.select.firstChild);
		}
		var vals = value? (this.multiple?
value.split(XsltForms_globals.valuesSeparator) : [value]) : [""];
		var list = this.full? (XsltForms_browser.isXhtml ?
this.element.getElementsByTagNameNS("http://www.w3.org/1999/xhtml",
"input") : this.element.getElementsByTagName("input")) :
this.select.options;
		var well = true;
		for (var i = 0, len = vals.length; well && i < len; i++) {
			var val = vals[i];
			var found = false;
			for (var j = 0, len1 = list.length; !found && j < len1; j++) {
				if (list[j].value === val) {
					found = true;
				}
			}
			well = found;
		}
		if (well || (this.multiple && !value)) {
			if (this.outRange) {
				this.outRange = false;
				XsltForms_xmlevents.dispatch(this, "xforms-in-range");
			}
		} else if ((!this.multiple || value) && !this.outRange) {
			this.outRange = true;
			XsltForms_xmlevents.dispatch(this, "xforms-out-of-range");
		}
		vals = this.multiple? vals : [vals[0]];
		var readonly = this.element.node.readonly;
		var item;
		if (this.full) {
			for (var n = 0, len2 = list.length; n < len2; n++) {
				item = list[n];
				item.checked = XsltForms_browser.inArray(item.value, vals);
			}
		} else {
			this.selectedOptions = [];
			for (var k = 0, len3 = list.length; k < len3; k++) {
				item = list[k];
				var b = XsltForms_browser.inArray(item.value, vals);
				if (b) {
					this.selectedOptions.push(item);
				}
				try {
					item.selected = b;
				} catch(e) {
				}
			}
		}
	}
};

Any help with this is greatly appreciated.

Steve Cameron