296800 - hint and help with invalid node bindings has wrong behaviour

Status: RESOLVED WONTFIX

(Core Graveyard :: XForms, defect)

Description

[Allan Beaufour]

Using invalid node bindings on either help or hint displays empty messages.

Comment 1

[Allan Beaufour]

Attachment: Testcase

Comment 2

[Allan Beaufour]

Empty messages does the same:
<xforms:trigger>
  <xforms:label>Test</xforms:label>
  <xforms:message level="ephemeral" ev:event="mouseover"/>
</xforms:trigger>

Comment 3

[aaronr]

We also need to figure out how to handle the binding exception, right?  Shouldn't this also generate a binding exception?  Do we want it to be silent (just output to the console) or should we have the big popup?  I'd argue that if we go with the big popup, then we should try a test-bind during page load so that the error is caught early by the forms developer.

Comment 4

[Allan Beaufour]

(In reply to comment #3)
> We also need to figure out how to handle the binding exception, right? 
> Shouldn't this also generate a binding exception?

Hmm, I'm a bit out of touch with when we actually generate those exceptions, but I just looked in the spec. and it actually only mentions binding exception on wrong @model and @bind:
http://www.w3.org/TR/2005/PER-xforms-20051006/slice3.html#structure-attrs-single-node

> Do we want it to be silent (just output to the console) or should we have the
> big popup?  I'd argue that if we go with the big popup, then we should try a
> test-bind during page load so that the error is caught early by the forms
> developer.

I'd argue that we should do an "XForms Error message", and let a configuration value let it either do:
1) js console output
or
2) notification bar
or
3) popup

that is, bug 323025 :)

Comment 5

[David Bolter [:davidb] (NeedInfo me for attention)]

RIP xforms