1 files changed, 85 insertions, 0 deletions
diff --git a/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/internal/utils/ObservableValueManager.java b/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/internal/utils/ObservableValueManager.java
new file mode 100644
index 00000000000..26e8b359e0b
--- /dev/null
+++ b/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/internal/utils/ObservableValueManager.java
@@ -0,0 +1,85 @@
+/*******************************************************************************
+ * Copyright (c) 2010 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.papyrus.xwt.internal.utils;
+
+import java.util.HashMap;
+
+import org.eclipse.core.databinding.observable.value.IObservableValue;
+import org.eclipse.papyrus.xwt.IEventGroup;
+import org.eclipse.papyrus.xwt.IObservableValueListener;
+import org.eclipse.papyrus.xwt.XWT;
+import org.eclipse.papyrus.xwt.javabean.metadata.properties.EventProperty;
+import org.eclipse.papyrus.xwt.metadata.IMetaclass;
+import org.eclipse.papyrus.xwt.metadata.IProperty;
+import org.eclipse.papyrus.xwt.metadata.ModelUtils;
+import org.eclipse.swt.widgets.Event;
+
+public class ObservableValueManager implements IObservableValueListener {
+
+	protected HashMap<String, IObservableValue> map;
+
+	protected Object host;
+
+	public ObservableValueManager(Object host) {
+		this.host = host;
+	}
+
+	public Object getHost() {
+		return host;
+	}
+
+	public void changeValueHandle(Object object, Event event) {
+		// TODO the cast is not clean. 
+		EventProperty property = (EventProperty)object;
+		IObservableValue value = map.get(property.getName());
+		if(value != null) {
+			Boolean oldValue = (Boolean)value.getValue();
+			if(oldValue == null) {
+				oldValue = false;
+			}
+			value.setValue(!oldValue);
+		}
+
+		IMetaclass metaclass = XWT.getMetaclass(host);
+
+		// TODO this conversion should be simplied
+		String eventName = ModelUtils.normalizePropertyName(property.getEvent().getName());
+		IEventGroup eventGroup = metaclass.getEventGroup(eventName);
+		if(eventGroup != null) {
+			eventGroup.fireEvent(this, property);
+		}
+	}
+
+	public void registerValue(IProperty property, IObservableValue observableValue) {
+		if(map == null) {
+			map = new HashMap<String, IObservableValue>();
+		}
+		map.put(property.getName(), observableValue);
+
+		IMetaclass metaclass = XWT.getMetaclass(host);
+		// TODO it is not clean. 
+		EventProperty eventProperty = (EventProperty)property;
+
+		// TODO this conversion should be simplied
+		String eventName = ModelUtils.normalizePropertyName(eventProperty.getEvent().getName());
+		IEventGroup eventGroup = metaclass.getEventGroup(eventName);
+		if(eventGroup != null) {
+			eventGroup.registerEvent(this, property);
+		}
+	}
+
+	public IObservableValue getValue(IProperty property) {
+		if(map == null) {
+			return null;
+		}
+		return map.get(property.getName());
+	}
+}