package er.extensions.components;
import com.webobjects.appserver.WOActionResults;
import com.webobjects.appserver.WOApplication;
import com.webobjects.appserver.WOAssociation;
import com.webobjects.appserver.WOComponent;
import com.webobjects.appserver.WOContext;
import com.webobjects.appserver.WODynamicElement;
import com.webobjects.appserver.WOElement;
import com.webobjects.appserver.WORequest;
import com.webobjects.appserver.WOResponse;
import com.webobjects.appserver._private.WODynamicElementCreationException;
import com.webobjects.foundation.NSDictionary;
import com.webobjects.foundation.NSMutableDictionary;
/**
* ERXSwitchEmbeddedPage allows you to wrap a section of your page and treat return
* values from invokeAction as a replacement only for the this element and not
* for the entire page. This allows you to write components that operate like a
* sequence of top level elements, yet actually they live within a larger page. This
* is very similar to ERXEmbeddedPage except in it comes in the form of a switch
* component.
*
* @binding initialComponentName the name of the component to display
*
* @author mschrag
*/
public class ERXSwitchEmbeddedPage extends WODynamicElement {
private WOAssociation _initialComponentName;
private NSMutableDictionary<String, WOAssociation> _componentAttributes;
private NSMutableDictionary<String, WOElement> _componentCache;
private WOElement _template;
public ERXSwitchEmbeddedPage(String name, NSDictionary<String, WOAssociation> associations, WOElement template) {
super(null, null, null);
_initialComponentName = associations.objectForKey("initialComponentName");
if (_initialComponentName == null) {
throw new WODynamicElementCreationException("initialComponentName is a required attribute.");
}
_componentAttributes = associations.mutableClone();
_componentAttributes.removeObjectForKey("initialComponentName");
_componentCache = new NSMutableDictionary<String, WOElement>();
_template = template;
}
public String _elementNameInContext(WOContext wocontext) {
com.webobjects.appserver.WOComponent wocomponent = wocontext.component();
String s = null;
Object obj = _initialComponentName.valueInComponent(wocomponent);
if (obj != null) {
s = obj.toString();
}
if (s == null || s.length() == 0) {
throw new IllegalStateException("<" + getClass().getName() + "> : componentName not specified or initialComponentName association evaluated to null.");
}
return s;
}
public WOElement _realComponentWithName(String s, WOContext wocontext) {
WOElement woelement;
synchronized (this) {
woelement = _componentCache.objectForKey(s);
if (woelement == null) {
woelement = WOApplication.application().dynamicElementWithName(s, _componentAttributes, _template, wocontext._languages());
if (woelement == null) {
throw new WODynamicElementCreationException("<" + getClass().getName() + "> : cannot find component or dynamic element named " + s);
}
_componentCache.setObjectForKey(woelement, s);
}
}
return woelement;
}
public void _setRealComponentWithName(WOComponent realComponent, String name, WOContext context) {
synchronized (this) {
WOElement dynamicElement = WOApplication.application().dynamicElementWithName(realComponent.getClass().getName(), _componentAttributes, _template, context._languages());
_componentCache.setObjectForKey(dynamicElement, name);
realComponent._setParent(context.component(), _componentAttributes, _template);
context.component()._setSubcomponent(realComponent, context.elementID());
}
}
@Override
public void takeValuesFromRequest(WORequest worequest, WOContext wocontext) {
String s = _elementNameInContext(wocontext);
wocontext.appendElementIDComponent(s.replace('.', '_'));
WOElement woelement = _realComponentWithName(s, wocontext);
woelement.takeValuesFromRequest(worequest, wocontext);
wocontext.deleteLastElementIDComponent();
}
@Override
public WOActionResults invokeAction(WORequest worequest, WOContext wocontext) {
String s = _elementNameInContext(wocontext);
wocontext.appendElementIDComponent(s.replace('.', '_'));
WOElement woelement = _realComponentWithName(s, wocontext);
WOActionResults woactionresults = woelement.invokeAction(worequest, wocontext);
if (woactionresults != null) {
WOComponent nextComponent;
if (woactionresults instanceof WOComponent) {
nextComponent = (WOComponent) woactionresults;
}
else {
ERXResponseComponent responseComponent = new ERXResponseComponent(wocontext);
responseComponent.setActionResults(woactionresults);
nextComponent = responseComponent;
}
_setRealComponentWithName(nextComponent, s, wocontext);
woactionresults = wocontext.page();
}
wocontext.deleteLastElementIDComponent();
return woactionresults;
}
@Override
public void appendToResponse(WOResponse woresponse, WOContext wocontext) {
String s = _elementNameInContext(wocontext);
wocontext.appendElementIDComponent(s.replace('.', '_'));
WOElement woelement = _realComponentWithName(s, wocontext);
woelement.appendToResponse(woresponse, wocontext);
wocontext.deleteLastElementIDComponent();
}
}