OO-317 add new window cycle event to notify a render-only situation, use in...

OO-317 add new window cycle event to notify a render-only situation, use in SCORM to fix jump in issue

src/main/java/org/olat/core/gui/components/Window.java

@@ -106,6 +106,12 @@ public class Window extends Container {
 	 */
 	public static final Event END_OF_DISPATCH_CYCLE = new Event("eodc");
 
+	/**
+	 * fired before render-only call is rendered (e.g. after reload, redirect).
+	 * In this case normally no dispatch is fired. No dispatch will be done
+	 */
+	public static final Event BEFORE_RENDER_ONLY = new Event("before_render_only");	
+	
 	/**
 	 * fired before inline (text/html computed response) takes place
 	 */
@@ -521,6 +527,7 @@ public class Window extends Container {
 			if (renderOnly || timestampID == null) {
 				inline = true;
 				validate = true;
+				wbackofficeImpl.fireCycleEvent(BEFORE_RENDER_ONLY);
 			} else if (validatingCausedRerendering && timestampID.equals("-1")) {
 				// the first request after the 302 redirect cause by a component validation 
 				// -> just rerender, but clear the flag for further async media requests

src/main/java/org/olat/course/nodes/scorm/ScormRunController.java

@@ -432,7 +432,12 @@ public class ScormRunController extends BasicController implements ScormAPICallb
 
 	@Override
 	public void event(Event event) {
-		if (event == Window.END_OF_DISPATCH_CYCLE) {
+		if (event == Window.END_OF_DISPATCH_CYCLE || event == Window.BEFORE_RENDER_ONLY) {
+			// do initial modal dialog activation 
+			// a) just after the dispatching of the event which is before
+			// rendering after a normal click
+			// b) just before a render-only operation which happens when using a
+			// jump-in URL followed by a redirect without dispatching
 			scormDispC.activate();
 			getWindowControl().getWindowBackOffice().removeCycleListener(this);
 		}