X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms.ui.workbench%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2Fworkbench%2Finternal%2Fjcr%2Fcommands%2FDeleteNodes.java;fp=org.argeo.cms.ui.workbench%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2Fworkbench%2Finternal%2Fjcr%2Fcommands%2FDeleteNodes.java;h=219d854b5455b70df78ff5963003a53430281792;hb=23b7a170cae60b500e9d45551f26b5075eba73a4;hp=0000000000000000000000000000000000000000;hpb=366986c3687b920a4b68eb0a0fadf3bc19dbb1bd;p=lgpl%2Fargeo-commons.git diff --git a/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/DeleteNodes.java b/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/DeleteNodes.java new file mode 100644 index 000000000..219d854b5 --- /dev/null +++ b/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/DeleteNodes.java @@ -0,0 +1,118 @@ +/* + * 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.cms.ui.workbench.internal.jcr.commands; + +import java.util.Iterator; + +import javax.jcr.Node; +import javax.jcr.RepositoryException; + +import org.argeo.cms.ui.workbench.internal.jcr.model.SingleJcrNodeElem; +import org.argeo.cms.ui.workbench.internal.jcr.model.WorkspaceElem; +import org.argeo.cms.ui.workbench.jcr.JcrBrowserView; +import org.argeo.eclipse.ui.EclipseUiException; +import org.argeo.eclipse.ui.TreeParent; +import org.argeo.eclipse.ui.dialogs.ErrorFeedback; +import org.eclipse.core.commands.AbstractHandler; +import org.eclipse.core.commands.ExecutionEvent; +import org.eclipse.core.commands.ExecutionException; +import org.eclipse.jface.dialogs.MessageDialog; +import org.eclipse.jface.viewers.ISelection; +import org.eclipse.jface.viewers.IStructuredSelection; +import org.eclipse.ui.handlers.HandlerUtil; + +/** + * Delete the selected nodes: both in the JCR repository and in the UI view. + * Warning no check is done, except implementation dependent native checks, + * handle with care. + * + * This handler is still 'hard linked' to a GenericJcrBrowser view to enable + * correct tree refresh when a node is added. This must be corrected in future + * versions. + */ +public class DeleteNodes extends AbstractHandler { + public Object execute(ExecutionEvent event) throws ExecutionException { + ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event) + .getActivePage().getSelection(); + if (selection == null || !(selection instanceof IStructuredSelection)) + return null; + + JcrBrowserView view = (JcrBrowserView) HandlerUtil + .getActiveWorkbenchWindow(event).getActivePage() + .findView(HandlerUtil.getActivePartId(event)); + + // confirmation + StringBuffer buf = new StringBuffer(""); + Iterator lst = ((IStructuredSelection) selection).iterator(); + while (lst.hasNext()) { + SingleJcrNodeElem sjn = ((SingleJcrNodeElem) lst.next()); + buf.append(sjn.getName()).append(' '); + } + Boolean ok = MessageDialog.openConfirm( + HandlerUtil.getActiveShell(event), "Confirm deletion", + "Do you want to delete " + buf + "?"); + + // operation + if (ok) { + Iterator it = ((IStructuredSelection) selection).iterator(); + Object obj = null; + SingleJcrNodeElem ancestor = null; + WorkspaceElem rootAncestor = null; + try { + while (it.hasNext()) { + obj = it.next(); + if (obj instanceof SingleJcrNodeElem) { + // Cache objects + SingleJcrNodeElem sjn = (SingleJcrNodeElem) obj; + TreeParent tp = (TreeParent) sjn.getParent(); + Node node = sjn.getNode(); + + // Jcr Remove + node.remove(); + node.getSession().save(); + // UI remove + tp.removeChild(sjn); + + // Check if the parent is the root node + if (tp instanceof WorkspaceElem) + rootAncestor = (WorkspaceElem) tp; + else + ancestor = getOlder(ancestor, (SingleJcrNodeElem) tp); + } + } + if (rootAncestor != null) + view.nodeRemoved(rootAncestor); + else if (ancestor != null) + view.nodeRemoved(ancestor); + } catch (Exception e) { + ErrorFeedback.show("Cannot delete selected node ", e); + } + } + return null; + } + + private SingleJcrNodeElem getOlder(SingleJcrNodeElem A, SingleJcrNodeElem B) { + try { + if (A == null) + return B == null ? null : B; + // Todo enhanced this method + else + return A.getNode().getDepth() <= B.getNode().getDepth() ? A : B; + } catch (RepositoryException re) { + throw new EclipseUiException("Cannot find ancestor", re); + } + } +}