/**
* This method returns any facets that should be applied to the <code>TreeNode (comp)</code>.
* Useful facets for the sun <code>TreeNode</code> component are: "content" and "image".
*
* <p>Facets that already exist on <code>comp</code>, or facets that are directly added to <code>
* comp</code> do not need to be returned from this method.
*
* <p>This implementation directly adds a "content" facet and returns <code>null</code> from this
* method.
*
* @param comp The tree node <code>UIComponent</code>.
* @param nodeObject The (model) object representing the tree node.
*/
public Map<String, UIComponent> getFacets(UIComponent comp, Object nodeObject) {
if (nodeObject == null) {
return null;
}
if (nodeObject.toString().equals(_objectName)) {
return null;
}
Properties props = new Properties();
LayoutComponent desc = this.getLayoutComponent();
// Check to see if a childActionListener was added
// NOTE: This is not needed when a "command" event is used. In the
// case of a CommandEvent an ActionListener will be
// automatically registered by the ComponentFactoryBase class
// during "setOptions()". Also, setting a childActionListener
// here should not stop "command" handlers from being invoked.
setProperty(props, "actionListener", desc.getOption("childActionListener"));
// Also se the target and text...
setProperty(props, "target", desc.getOption("childTarget"));
setProperty(props, "text", comp.getAttributes().get("text"));
// FIXME: Add support for other hyperlink properties??
// Create Hyperlink
// NOTE: Last attribute "content" will be the facet named used.
UIComponent link =
ComponentUtil.getChild(
comp,
"link",
"com.sun.jsftemplating.component.factory.sun.HyperlinkFactory",
props,
"content");
// Check to see if we have a childURL, evalute it here (after component
// is created, before rendered) so we can use the link itself to define
// the URL. This has proven to be useful...
Object val = desc.getOption("childURL");
if (val != null) {
link.getAttributes()
.put("url", desc.resolveValue(FacesContext.getCurrentInstance(), link, val));
}
// Set href's handlers...
// We do it this way rather than earlier b/c the factory will not
// recognize this as a property, it requires it to be defined in the
// LayoutComponent as a handler. So we must do this manually like
// this.
List handlers = desc.getHandlers("childCommand");
if (handlers != null) {
link.getAttributes().put("command", handlers);
// This adds the required action listener to proces the commands
// This is needed here b/c the factory has already executed -- the
// factory is normally the place where this is added (iff there is
// at least one command handler).
((ActionSource) link).addActionListener(CommandActionListener.getInstance());
}
// We already added the facet, return null...
return null;
}
@Override
public void apply(FaceletContext ctx, UIComponent parent)
throws IOException, FacesException, FaceletException, ELException {
if (parent instanceof ActionSource) {
// only process if parent was just created
if (parent.getParent() == null) {
ActionSource src = (ActionSource) parent;
ActionListener listener =
new MethodExpressionActionListener(
new MetaMethodExpression(
value.getMethodExpression(ctx, null, ACTION_LISTENER_SIG),
ctx.getFunctionMapper(),
ctx.getVariableMapper()));
src.addActionListener(listener);
}
} else {
throw new TagException(tag, "Parent is not of type ActionSource, type is: " + parent);
}
}
@Override
public int doStartTag() throws JspException {
UIComponentTag tag = UIComponentTag.getParentUIComponentTag(pageContext);
if (tag == null) {
throw new JspException(
_LOG.getMessage("FILEDOWNLOADACTIONLISTENER_MUST_INSIDE_UICOMPONENT_TAG"));
}
// Only run on the first time the tag executes
if (!tag.getCreated()) return SKIP_BODY;
UIComponent component = tag.getComponentInstance();
if (!(component instanceof ActionSource)) {
throw new JspException(
_LOG.getMessage("FILEDOWNLOADACTIONLISTENER_MUST_INSIDE_UICOMPONENT_TAG"));
}
ELContextTag parentELContext = (ELContextTag) findAncestorWithClass(this, ELContextTag.class);
Application application = FacesContext.getCurrentInstance().getApplication();
FileDownloadActionListener listener = new FileDownloadActionListener();
if (_filename != null) {
listener.setValueExpression(FileDownloadActionListener.FILENAME_KEY, _filename);
}
if (_contentType != null) {
listener.setValueExpression(FileDownloadActionListener.CONTENT_TYPE_KEY, _contentType);
}
listener.setMethod(_method);
((ActionSource) component).addActionListener(listener);
return super.doStartTag();
}
