Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.utils.ui / src / org / simantics / utils / ui / widgets / VetoingEventHandler.java

diff --git a/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/widgets/VetoingEventHandler.java b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/widgets/VetoingEventHandler.java
new file mode 100644 (file)
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+++ b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/widgets/VetoingEventHandler.java
@@ -0,0 +1,32 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.utils.ui.widgets;\r
+\r
+import org.eclipse.swt.widgets.Event;\r
+import org.eclipse.swt.widgets.Listener;\r
+\r
+/**\r
+ * A generic SWT event listener that simply consumes and vetoes the incoming\r
+ * event by setting {@link Event#doit} to <code>false</code>.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class VetoingEventHandler implements Listener {\r
+\r
+    public static final VetoingEventHandler INSTANCE = new VetoingEventHandler();\r
+\r
+    @Override\r
+    public void handleEvent(Event event) {\r
+        event.doit = false;\r
+    }\r
+\r
+}
\ No newline at end of file