+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.eclipse.ui.jcr.views;
+
+import javax.jcr.Node;
+
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.part.ViewPart;
+
+public abstract class AbstractJcrBrowser extends ViewPart {
+
+ @Override
+ public abstract void createPartControl(Composite parent);
+
+ /**
+ * To be overridden to adapt size of form and result frames.
+ */
+ abstract protected int[] getWeights();
+
+ /**
+ * To be overridden to provide an adapted size nodeViewer
+ */
+ abstract protected TreeViewer createNodeViewer(Composite parent,
+ ITreeContentProvider nodeContentProvider);
+
+ /**
+ * To be overridden to retrieve the current nodeViewer
+ */
+ abstract protected TreeViewer getNodeViewer();
+
+ /*
+ * Enables the refresh of the tree.
+ */
+ @Override
+ public void setFocus() {
+ getNodeViewer().getTree().setFocus();
+ }
+
+ public void refresh(Object obj) {
+ // getNodeViewer().update(obj, null);
+ getNodeViewer().refresh(obj);
+ // getNodeViewer().expandToLevel(obj, 1);
+ }
+
+ public void nodeAdded(Node parentNode, Node newNode) {
+ getNodeViewer().refresh(parentNode);
+ getNodeViewer().expandToLevel(newNode, 0);
+ }
+
+ public void nodeRemoved(Node parentNode) {
+ IStructuredSelection newSel = new StructuredSelection(parentNode);
+ getNodeViewer().setSelection(newSel, true);
+ // Force refresh
+ IStructuredSelection tmpSel = (IStructuredSelection) getNodeViewer()
+ .getSelection();
+ getNodeViewer().refresh(tmpSel.getFirstElement());
+ }
+}