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16 package org.argeo.cms.e4.jcr.handlers;
17
18 import java.util.List;
19
20 import javax.inject.Named;
21 import javax.jcr.Node;
22 import javax.jcr.RepositoryException;
23
24 import org.argeo.cms.e4.jcr.JcrBrowserView;
25 import org.argeo.cms.ui.jcr.model.SingleJcrNodeElem;
26 import org.argeo.cms.ui.jcr.model.WorkspaceElem;
27 import org.argeo.eclipse.ui.EclipseUiException;
28 import org.argeo.eclipse.ui.TreeParent;
29 import org.argeo.eclipse.ui.dialogs.ErrorFeedback;
30 import org.eclipse.e4.core.di.annotations.Execute;
31 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
32 import org.eclipse.e4.ui.services.IServiceConstants;
33 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
34 import org.eclipse.jface.dialogs.MessageDialog;
35 import org.eclipse.swt.widgets.Display;
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46 public class DeleteNodes {
47 @Execute
48 public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part, ESelectionService selectionService) {
49 List<?> selection = (List<?>) selectionService.getSelection();
50 if (selection == null)
51 return;
52
53 JcrBrowserView view = (JcrBrowserView) part.getObject();
54
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56 StringBuffer buf = new StringBuffer("");
57 for (Object o : selection) {
58 SingleJcrNodeElem sjn = (SingleJcrNodeElem) o;
59 buf.append(sjn.getName()).append(' ');
60 }
61 Boolean doRemove = MessageDialog.openConfirm(Display.getCurrent().getActiveShell(), "Confirm deletion",
62 "Do you want to delete " + buf + "?");
63
64
65 if (doRemove) {
66 SingleJcrNodeElem ancestor = null;
67 WorkspaceElem rootAncestor = null;
68 try {
69 for (Object obj : selection) {
70 if (obj instanceof SingleJcrNodeElem) {
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72 SingleJcrNodeElem sjn = (SingleJcrNodeElem) obj;
73 TreeParent tp = (TreeParent) sjn.getParent();
74 Node node = sjn.getNode();
75
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77 node.remove();
78 node.getSession().save();
79
80 tp.removeChild(sjn);
81
82
83 if (tp instanceof WorkspaceElem)
84 rootAncestor = (WorkspaceElem) tp;
85 else
86 ancestor = getOlder(ancestor, (SingleJcrNodeElem) tp);
87 }
88 }
89 if (rootAncestor != null)
90 view.nodeRemoved(rootAncestor);
91 else if (ancestor != null)
92 view.nodeRemoved(ancestor);
93 } catch (Exception e) {
94 ErrorFeedback.show("Cannot delete selected node ", e);
95 }
96 }
97 }
98
99 private SingleJcrNodeElem getOlder(SingleJcrNodeElem A, SingleJcrNodeElem B) {
100 try {
101 if (A == null)
102 return B == null ? null : B;
103
104 else
105 return A.getNode().getDepth() <= B.getNode().getDepth() ? A : B;
106 } catch (RepositoryException re) {
107 throw new EclipseUiException("Cannot find ancestor", re);
108 }
109 }
110 }