[Laszlo-dev] soap support

[Henry Minsky]

On Fri, Dec 12, 2008 at 2:48 AM, ono keiji <keiji_ono at net8.co.jp> wrote:
> I have been checking LPP-5172, and i found the cause that the getValue() of param class in rpc.lzx.
> These 2 case code works fine( you can see this in the test/rpc/soap/soaptest3.lzx ).
>
>    1.<remotecall funcname="whatString">
>        <param>
>           <method name="getValue">
>                return canvas.soaptest.makedoc( parent.name, s.text );
>           </method>
>        </param>
>      </remotecall>
>                      :
>      <button text="whatString" onclick="canvas.soaptest.whatString.invoke()"/>
>
>    2.<remotecall funcname="whatString"/>
>                      :
>      <button text="whatString" onclick="canvas.soaptest.whatString.invoke( canvas.soaptest.makedoc( parent.name, s.text ), null )"/>
>
> But this code dose not work.This is the popular style, as in dev-guide and api-ref.And this works in lps-3.3.3.
>
>    3.<remotecall funcname="whatString">
>          <param value="${canvas.soaptest.makedoc( parent.name, s.text )}"/>
>      </remotecall>
>                      :
>      <button text="whatString" onclick="canvas.soaptest.whatString.invoke()"/>
>
>
> From these, i guess it is bad to implement the getValue() at param class in rpc.lzx.
> So i suspicious the type of value attribute in param class. It is 'expression' now.
>
> Any advices?
>
> ono keiji
>
>

I don't think that the schema data-type of the "value"  attribute
would affect this case, because the
value is being set by a constraint function.

The schema data type of an attribute  ( "expression". "string",
"color", etc ) only
affects how the tag compiler compiles *constant* values in the source
code, such as

<view x="100">
or
<view bgcolor="red">

These get emitted as javascript which creates initialization values
for these attributes. But if the
value is a constraint, like
<view x="${canvas.width}">

Then the compiler emits code which turns that into a handler to set
the value to the result of your  constraint expression, and  the data
type of the attribute from the schema is not used in that case.