[jbosstools-commits] JBoss Tools SVN: r44092 - trunk/common/plugins/org.jboss.tools.common.ui/src/org/jboss/tools/common/ui/databinding.

[jbosstools-commits at lists.jboss.org]

Author: adietish
Date: 2012-09-27 10:28:58 -0400 (Thu, 27 Sep 2012)
New Revision: 44092

Modified:
   trunk/common/plugins/org.jboss.tools.common.ui/src/org/jboss/tools/common/ui/databinding/DataBindingUtils.java
Log:
added DataBindingUtils#observeAndPrintValidationState to ease tracking of validation related bugs

Modified: trunk/common/plugins/org.jboss.tools.common.ui/src/org/jboss/tools/common/ui/databinding/DataBindingUtils.java
===================================================================
--- trunk/common/plugins/org.jboss.tools.common.ui/src/org/jboss/tools/common/ui/databinding/DataBindingUtils.java	2012-09-27 12:29:29 UTC (rev 44091)
+++ trunk/common/plugins/org.jboss.tools.common.ui/src/org/jboss/tools/common/ui/databinding/DataBindingUtils.java	2012-09-27 14:28:58 UTC (rev 44092)
@@ -18,6 +18,8 @@
 import org.eclipse.core.databinding.beans.BeanProperties;
 import org.eclipse.core.databinding.observable.IObservableCollection;
 import org.eclipse.core.databinding.observable.list.WritableList;
+import org.eclipse.core.databinding.observable.value.IValueChangeListener;
+import org.eclipse.core.databinding.observable.value.ValueChangeEvent;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.jface.databinding.fieldassist.ControlDecorationSupport;
 import org.eclipse.jface.databinding.swt.WidgetProperties;
@@ -131,4 +133,26 @@
 		return binding;
 	}
 
+	/**
+	 * Observe and print validation state changes. Utility method to ease bug
+	 * tracking.
+	 * 
+	 * @param label the label to use when printing validation state changes 
+	 * @param dbc the databinding context to observe for validation changes
+	 */
+	public static void observeAndPrintValidationState(final String label, DataBindingContext dbc) {
+		AggregateValidationStatus status = new AggregateValidationStatus(dbc, AggregateValidationStatus.MAX_SEVERITY);
+		status.addValueChangeListener(new IValueChangeListener() {
+
+			@Override
+			public void handleValueChange(ValueChangeEvent event) {
+				System.err.println("------------------------");
+				System.err.println(label);
+				System.err.println("------------------------");
+				System.err.println(event.diff.getNewValue());
+				System.err.println("------------------------");
+			}
+		});
+	}
+
 }