package er.ajax;
import java.util.Enumeration;
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.WOResponse;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSDictionary;
import com.webobjects.foundation.NSMutableArray;
import er.extensions.components.ERXComponentUtilities;
/**
* AjaxUpdateTrigger is useful if you have multiple containers on a page
* that are controlled by a central parent component. AjaxUpdateTrigger
* allows you to pass in an array of containers that need to be updated. An
* example of this is if you have multiple editable areas on a page and only
* one should be in edit mode at a time. If you put an AjaxUpdateTrigger
* inside the edit view, you can set the other components to not be in
* edit mode and trigger all of the other update containers to update,
* reflecting their new non-editable status.
*
* @binding updateContainerIDs an array of update container IDs to update
* @binding resetAfterUpdate if true, the array of IDs will be cleared after appendToResponse
*
* @author mschrag
*/
public class AjaxUpdateTrigger extends WODynamicElement {
private NSDictionary _associations;
private WOAssociation _updateContainerIDs;
private WOAssociation _resetAfterUpdate;
public AjaxUpdateTrigger(String name, NSDictionary associations, WOElement template) {
super(name, associations, template);
_associations = associations;
_updateContainerIDs = (WOAssociation) associations.objectForKey("updateContainerIDs");
_resetAfterUpdate = (WOAssociation) associations.objectForKey("resetAfterUpdate");
}
@Override
public void appendToResponse(WOResponse response, WOContext context) {
super.appendToResponse(response, context);
WOComponent component = context.component();
NSArray updateContainerIDs = (NSArray) _updateContainerIDs.valueInComponent(component);
if (updateContainerIDs != null && updateContainerIDs.count() > 0) {
AjaxUtils.appendScriptHeader(response);
Enumeration updateContainerIDEnum = updateContainerIDs.objectEnumerator();
while (updateContainerIDEnum.hasMoreElements()) {
String updateContainerID = (String) updateContainerIDEnum.nextElement();
// PROTOTYPE FUNCTIONS
Object evalScripts = ERXComponentUtilities.valueForBinding("evalScripts", "true", _associations, component);
response.appendContentString("if ($wi('" + updateContainerID + "')) { ");
response.appendContentString("new Ajax.Updater('" + updateContainerID + "', $wi('" + updateContainerID + "').getAttribute('data-updateUrl'), {" + " evalScripts: " + evalScripts + ", insertion: Element.update, method: 'get' });\n");
response.appendContentString(" }");
}
AjaxUtils.appendScriptFooter(response);
if (_resetAfterUpdate != null && _resetAfterUpdate.booleanValueInComponent(component)) {
((NSMutableArray) updateContainerIDs).removeAllObjects();
}
}
}
}