OO-2395 update title in breadcrumb and nav when changed

src/main/java/org/olat/core/commons/fullWebApp/BaseFullWebappController.java

@@ -1198,6 +1198,23 @@ public class BaseFullWebappController extends BasicController implements DTabs,
 		return true;
 	}
 	
+	@Override
+	public void updateDTabTitle(OLATResourceable ores, String newTitle) {
+		DTab dTab = getDTab(ores);
+		if (dTab != null) {
+			dTab.getNavElement().setTitle(newTitle);
+			// search all dtab links and find the one with the correct dtab as user object
+			for (int i = 0; i <= dtabCreateCounter; i++) {
+				Link link = (Link)navTabsVc.getComponent("a" + i);
+				if (link != null && dTab.equals(link.getUserObject())) {
+					// correct link found - updte titel and we are done
+					link.setCustomDisplayText(newTitle);
+					return;
+				}				
+			}			
+		}
+	}
+	
 	/**
 	 * Activating a tab is like focusing a new window - we need to adjust the
 	 * guipath since e.g. the button triggering the activation is not

src/main/java/org/olat/core/gui/control/generic/dtabs/DTabs.java

@@ -80,6 +80,13 @@ public interface DTabs {
 	 */
 	public boolean addDTab(UserRequest ureq, DTab dt);
 
+	/**
+	 * Update the title of an already instantiated tab. Use rarely
+	 * @param ores
+	 * @param newTitle
+	 */
+	public void updateDTabTitle(OLATResourceable ores, String newTitle);
+
 	/**
 	 * Remove a tab from tabs-list.
 	 * @param dt Remove this tab

src/main/java/org/olat/core/gui/control/navigation/NavElement.java

@@ -43,7 +43,14 @@ public interface NavElement {
 	 * @return
 	 */
 	public String getTitle();
-	
+
+	/**
+	 * Set a new title for the navigation, e.g. when a resource has been renamed
+	 * 
+	 * @param title
+	 */
+	public void setTitle(String title);
+
 	/**[used by velocity]
 	 * @return
 	 */

src/main/java/org/olat/repository/ui/RepositoryEntryRuntimeController.java

@@ -572,8 +572,21 @@ public class RepositoryEntryRuntimeController extends MainLayoutBasicController
 			}
 		} else if(descriptionCtrl == source) {
 			if(event == Event.CHANGED_EVENT) {
-				refreshRepositoryEntry(descriptionCtrl.getEntry());
-				handler.onDescriptionChanged(descriptionCtrl.getEntry());
+				RepositoryEntry entry = descriptionCtrl.getEntry();
+				refreshRepositoryEntry(entry);
+				handler.onDescriptionChanged(entry);
+				// update name of root bread crumb and opened tabs in top nav in case the title has been modified
+				if (toolbarPanel.getBreadCrumbs().size() > 0) {					
+					String newTitle = entry.getDisplayname();
+					String oldTitle = toolbarPanel.getBreadCrumbs().get(0).getCustomDisplayText();
+					if (!newTitle.equals(oldTitle)) {						
+						// 1: update breadcrumb in toolbar
+						toolbarPanel.getBreadCrumbs().get(0).setCustomDisplayText(newTitle);
+						// 2: update dynamic tab in topnav
+						OLATResourceable reOres = OresHelper.clone(entry);
+						getWindowControl().getWindowBackOffice().getWindow().getDTabs().updateDTabTitle(reOres, newTitle);
+					}
+				}
 			} else if(event == Event.CLOSE_EVENT) {
 				doClose(ureq);
 			}