IDEMPIERE-1478 Usability improvement - closing without saving

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/adwindow/ADWindowContent.java

@@ -25,6 +25,7 @@ package org.adempiere.webui.adwindow;
 
 import java.util.Properties;
 
+import org.adempiere.util.Callback;
 import org.adempiere.webui.LayoutUtils;
 import org.adempiere.webui.component.Tabpanel;
 import org.adempiere.webui.component.ToolBarButton;
@@ -197,14 +198,44 @@ public class ADWindowContent extends AbstractADWindowContent
 	class TabOnCloseHanlder implements ITabOnCloseHandler {
 
 		public void onClose(Tabpanel tabPanel) {
+			if (ADWindowContent.this.getOnExitCallBack() == null){
+				OnCloseCallback onCloseCallback = new OnCloseCallback();
+				ADWindowContent.this.setOnExitCallBack(onCloseCallback);
+				onCloseCallback.setTabPanel(tabPanel);
+			}
 			if (ADWindowContent.this.onExit()) {				
+				closeTab (tabPanel);
+			}
+		}
+	}
+	
+	class OnCloseCallback implements Callback<Boolean>{
+		Tabpanel tabPanel;
+		public Tabpanel getTabPanel() {
+			return tabPanel;
+		}
+		public void setTabPanel(Tabpanel tabPanel) {
+			this.tabPanel = tabPanel;
+		}
+		@Override
+		public void onCallback(Boolean result) {
+			if (result){
+				closeTab (tabPanel);
+			}
+			
+		}
+	}
+	
+	/**
+	 * close tab contain this window
+	 * @param tabPanel
+	 */
+	protected void closeTab (Tabpanel tabPanel) {
 		Tab tab = tabPanel.getLinkedTab();
 		tab.close();
 		if (getWindowNo() > 0)
 			SessionManager.getAppDesktop().unregisterWindow(getWindowNo());
 	}
-		}
-	}
 	
 	public static class ADWindowVlayout extends Vlayout implements IHelpContext {
 		/**

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/adwindow/AbstractADWindowContent.java

@@ -970,6 +970,20 @@ public abstract class AbstractADWindowContent extends AbstractUIPart implements
     	focusToActivePanel();
     }
 
+    /**
+     * handle respond of user with close un save message.
+     * must set before call onExit
+     */
+    private Callback<Boolean> onExitCallBack;
+    
+    public Callback<Boolean> getOnExitCallBack() {
+		return onExitCallBack;
+	}
+
+	public void setOnExitCallBack(Callback<Boolean> onExitCallBack) {
+		this.onExitCallBack = onExitCallBack;
+	}
+
 	/**
      * @return boolean
      */
@@ -979,12 +993,14 @@ public abstract class AbstractADWindowContent extends AbstractUIPart implements
     	{
     		return true;
     	}
-    	else
-    		FDialog.info(this.curWindowNo, null, "SaveBeforeClose");
+    	else{
     	
+    		FDialog.ask(curWindowNo, null, "CloseUnSave?", getOnExitCallBack());
     		return false;
     	}
     	
+    }
+
     /**
      * @param event
      * @see EventListener#onEvent(Event)