package er.extensions.components;
import com.webobjects.appserver.WOActionResults;
import com.webobjects.appserver.WOAssociation;
import com.webobjects.appserver.WOComponent;
import com.webobjects.appserver.WOContext;
import com.webobjects.appserver.WOElement;
import com.webobjects.appserver.WORequest;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSDictionary;
import com.webobjects.foundation.NSKeyValueCoding;
import com.webobjects.foundation.NSMutableDictionary;
import er.extensions.components._private.ERXHyperlink;
/**
* ERXDataHyperlink works like a WOHyperlink except that instead of turning
* unknown bindings into tag attributes, it instead passes them to the page
* specified in pageName. For instance, if you have a pageName = "PersonPage"
* and person = "$currentPerson", when the link is clicked, the next page will
* be a PersonPage with setPerson(currentPerson) passed into it.
*
* You can pass in as many bindings as you need, but there are some bindings
* that are used by this element by itself and thus are not passed to the page:
* The ones defined by WOHyperlink and additionally "id", "class", "onclick" and
* "otherTagString", which are handled like bindings on a stock WOHyperlink.
*
* If the "pageName" binding is not set, ERXDataHyperlink will behave like a
* regular WOHyperlink.
*
* @author mschrag
* @author timo
*/
public class ERXDataHyperlink extends ERXHyperlink {
private final static NSArray<String> BINDINGS_HANDLED_BY_SUPER_CLASS = new NSArray<String>(new String[] {"id", "class", "onclick", "otherTagString"});
private NSMutableDictionary<String, WOAssociation> _bindingAssociations;
@SuppressWarnings("unchecked")
public ERXDataHyperlink(String s, NSDictionary associations, WOElement woelement) {
// The WOHyperlink's constructor will remove all associations from
// super._associations that directly affect WOHyperlink
super(s, associations, woelement);
if (_pageName != null) {
_bindingAssociations = new NSMutableDictionary<String, WOAssociation>();
NSMutableDictionary<String, WOAssociation> superAssociations = super._associations;
for (String key : superAssociations.allKeys()) {
// leave anything listed in BINDINGS_HANDLED_BY_SUPERCLASS in
// super._associations to be handled by the superclass.
if (!BINDINGS_HANDLED_BY_SUPER_CLASS.containsObject(key)) {
// Move all other associations to our own _bindingAssociations,
// so they can later be used as bindings for the page specified
// in pageName.
_bindingAssociations.setObjectForKey(superAssociations.removeObjectForKey(key), key);
}
}
}
}
@Override
@SuppressWarnings("unchecked")
public WOActionResults invokeAction(WORequest worequest, WOContext wocontext) {
WOActionResults results = super.invokeAction(worequest, wocontext);
if (results != null && _pageName != null) {
WOComponent component = wocontext.component();
for (String bindingName : _bindingAssociations.allKeys()) {
WOAssociation association = _bindingAssociations.objectForKey(bindingName);
Object value = association.valueInComponent(component);
NSKeyValueCoding.Utility.takeValueForKey(results, value, bindingName);
}
}
return results;
}
}