- From: Erik Bruchez <ebruchez@orbeon.com>
- Date: Mon, 23 Apr 2012 16:56:36 -0700
- To: public-forms@w3.org
All, I could swear that we had covered this a long time ago, but I can't find something very clear in XForms 1.1 on this. The scenario is the following: <xf:instance> <foo>bar</foo> </xf:instance> <xf:input ref="text()"> If this is allowed, upon initialization, <xf:input> binds to the text node, and reads "the string-value of the node" [1]. But if the user changes the value to the empty string, then as per setvalue, "the text node is eliminated if the new value is the empty string" [2]. This means the control loses its binding at the next refresh. But do we actually disallow it, or warn about it? I can't find whether that's the case. Controls like <xf:input> have a "data binding restriction", which says that they must bind to "simpleContent". What's not clear to me is whether this term, which comes from XML Schema, encompasses binding to text nodes. As usual deciphering XML Schema is difficult! In short, I am asking: - whether we made a decision on whether binding <xf:input> etc. to text nodes is allowed - if not, we should make such a decision - if we decide(d) against allowing such bindings, we should make the spec clearer - if we decide(d) for allowing such bindings, we should make the spec clearer and warn of the scenario above Thanks, -Erik [1] http://www.w3.org/TR/xforms11/#ui-processing [2] http://www.w3.org/TR/xforms11/#action-setvalue
Received on Monday, 23 April 2012 23:57:25 UTC