2007/6/19, Gerolf Seitz <[EMAIL PROTECTED]>:
> take a look at the class
> org.apache.wicket.extensions.yui.calendar.DatePicker (in
> wicket-datetime)
> there is the following statement in line 183
>
> TextTemplateHeaderContributor.forJavaScript(DatePicker.class,
> "DatePicker.js",
>
> Model.valueOf(variables)).renderHead(response);
>
> this does the following:
> it takes the file DatePicker.js, which wicket finds relativ to the location
> of DatePicker.class and substitues every ${VARIABLENAME} text it can find in
> DatePicker.js with the value mapped to the key VARIABLENAME in the Map
> "variables".
>
> 1)
> so you might want to put the javascript in a file.
> the line would look like:
> var myvar = '${myvalue}';
>
> 2)
> let the component (or behaviour) implement IHeaderContributor and implement
> the renderHead method like the following
>
> 2.a)
> put the key/value in a map:
> Map variables = new HashMap();
> variables.put("myvalue", foo);
>
> 2.b)
> put this statement after all variables have been put in the map
> TextTemplateHeaderContributor.forJavaScript(MyClass.class,
> "MyScript.js",
>
> Model.valueOf(variables)).renderHead(response);
Thanks, in fact this is not exactly what I needed but it gave me some
inspiration. My javascript code was in a loop so I wanted to apply a
template to the content of a tag.
Here is what I did, it works fine, I'm not completely happy with my
test on the model, but I cannot find a model that returns the content
of the tag that is in the template
public class TemplateLabel extends Label
{
private Map variables;
// some constructors ...
protected void onComponentTagBody(MarkupStream markupStream,
ComponentTag openTag)
{
IModel iModel = getModel();
String objectAsString;
if (iModel == null)
{
MarkupElement element = markupStream.get();
objectAsString = element.toString();
}
else
{
objectAsString = getModelObjectAsString();
}
MapVariableInterpolator newContent = new
MapVariableInterpolator(objectAsString, variables);
replaceComponentTagBody(markupStream, openTag,
newContent.toString());
}
}
Matthieu
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