Gertjan Assies <gertjan <at> assies.nu> writes:
>
>
> Hi,
>
> I have the following definitions in my page-specification
>
> <property name="file" />
> <property name="selectedFile" persist="session"/>
>
> <component id="icon" type="Image">
> <binding name="image" value="assets.icon"/>
> </component>
> <asset name="icon" path="img/item.png" />
>
> this is based on the tacos tree component
>
> I want to make the icon asset dynamic, based on the file property
> (have thumbnails of pictures as icons in the tree)
> but changing the image binding to
> <binding name="image" value="ognl:file.path">
Try:
<binding name="image" value="dynamicAsset"/>
In your java class:
@InjectObject("service:tapestry.globals.WebRequest")
public abstract WebRequest getWebRequest();
@InjectObject("service:tapestry.globals.ServletContext")
public abstract ServletContext getServletContext();
public IAsset getDynamicAsset() {
return new ContextAsset(
getWebRequest().getContextPath(),
new ContextResource(getServletContext(), getFile().getPath()),
null);
}
--
Author of a book for learning Tapestry (http://www.agileskills2.org/EWDT)
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