Hi!
I've created a customized version of the Shell component...essentially I
want to to extend the handling of stylesheet assets to javascripts (write
<script> tags embedded in the <head > element).
CustomShell.java adds to the original:
public abstract IAsset getJavascript();
public abstract Object getJavascripts();
public void renderComponent(IMarkupWriter writer, IRequestCycle cycle) {
/** added the following **/
IAsset javascript = getJavascript();
if (javascript != null)
writeJavascriptScript(writer, cycle, javascript);
Iterator scripts = (Iterator) getValueConverter().coerceValue(
getJavascripts(),
Iterator.class);
while (scripts.hasNext())
{
javascript = (IAsset) i.next();
writeJavascriptScript(writer, cycle, javascript);
}
}
private void writeJavascriptScript(IMarkupWriter writer, IRequestCycle
cycle, IAsset javascript)
{
writer.beginEmpty("script");
writer.attribute("type", "text/javascript");
writer.attribute("src", javascript.buildURL());
writer.closeTag();
writer.println();
}
CustomShell.jwc adds these to the original:
<parameter name="javascript">
<description>
If specified, provides an external javascript for the page.
</description>
</parameter>
<parameter name="javascripts">
<description>
Array or collection of stylesheet assets.
</description>
</parameter>
However, this isn't working as I'm running into a ValueConverter issue:
Exception: "org.apache.hivemind.ApplicationRuntimeException: No type
converter for type org.apache.tapestry.IAsset is available.
Borrowing from the Shell.jwc file, I notice that the following service is
injected - which apparently implements
org.apache.tapestry.coerce.ValueConverterImpl
<inject property="valueConverter" object="service:
tapestry.coerce.ValueConverter"/>
What do I need to do to get my custom shell comp to render the script
assets? Thanks in advance!
Jason
