X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;ds=sidebyside;f=org.argeo.cms.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2Fviewers%2FJcrVersionCmsEditable.java;fp=org.argeo.cms.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2Fviewers%2FJcrVersionCmsEditable.java;h=dfd1438297e6ff86b7bd41718815689790ad8fc7;hb=5b3108fe285bca50565b58b63fa4feddc96c0765;hp=0000000000000000000000000000000000000000;hpb=e54c6091d38b6859dec42f36e7334da19e2a0227;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.cms.ui/src/org/argeo/cms/ui/viewers/JcrVersionCmsEditable.java b/org.argeo.cms.ui/src/org/argeo/cms/ui/viewers/JcrVersionCmsEditable.java
new file mode 100644
index 000000000..dfd143829
--- /dev/null
+++ b/org.argeo.cms.ui/src/org/argeo/cms/ui/viewers/JcrVersionCmsEditable.java
@@ -0,0 +1,101 @@
+package org.argeo.cms.ui.viewers;
+
+import java.util.Observable;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+import javax.jcr.nodetype.NodeType;
+import javax.jcr.version.VersionManager;
+
+import org.argeo.cms.CmsException;
+import org.argeo.cms.ui.CmsEditable;
+import org.argeo.cms.ui.CmsEditionEvent;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+
+/** Provides the CmsEditable semantic based on JCR versioning. */
+public class JcrVersionCmsEditable extends Observable implements CmsEditable {
+	private final String nodePath;// cache
+	private final VersionManager versionManager;
+	private final Boolean canEdit;
+
+	public JcrVersionCmsEditable(Node node) throws RepositoryException {
+		this.nodePath = node.getPath();
+		if (node.getSession().hasPermission(node.getPath(),
+				Session.ACTION_SET_PROPERTY)) {
+			// was Session.ACTION_ADD_NODE
+			canEdit = true;
+			if (!node.isNodeType(NodeType.MIX_VERSIONABLE)) {
+				node.addMixin(NodeType.MIX_VERSIONABLE);
+				node.getSession().save();
+			}
+			versionManager = node.getSession().getWorkspace()
+					.getVersionManager();
+		} else {
+			canEdit = false;
+			versionManager = null;
+		}
+
+		// bind keys
+		if (canEdit) {
+			Display display = Display.getCurrent();
+			display.setData(RWT.ACTIVE_KEYS, new String[] { "CTRL+RETURN",
+					"CTRL+E" });
+			display.addFilter(SWT.KeyDown, new Listener() {
+				private static final long serialVersionUID = -4378653870463187318L;
+
+				public void handleEvent(Event e) {
+					boolean ctrlPressed = (e.stateMask & SWT.CTRL) != 0;
+					if (ctrlPressed && e.keyCode == '\r')
+						stopEditing();
+					else if (ctrlPressed && e.keyCode == 'E')
+						stopEditing();
+				}
+			});
+		}
+	}
+
+	@Override
+	public Boolean canEdit() {
+		return canEdit;
+	}
+
+	public Boolean isEditing() {
+		try {
+			if (!canEdit())
+				return false;
+			return versionManager.isCheckedOut(nodePath);
+		} catch (RepositoryException e) {
+			throw new CmsException("Cannot check whether " + nodePath
+					+ " is editing", e);
+		}
+	}
+
+	@Override
+	public void startEditing() {
+		try {
+			versionManager.checkout(nodePath);
+			setChanged();
+		} catch (RepositoryException e1) {
+			throw new CmsException("Cannot publish " + nodePath);
+		}
+		notifyObservers(new CmsEditionEvent(nodePath,
+				CmsEditionEvent.START_EDITING));
+	}
+
+	@Override
+	public void stopEditing() {
+		try {
+			versionManager.checkin(nodePath);
+			setChanged();
+		} catch (RepositoryException e1) {
+			throw new CmsException("Cannot publish " + nodePath, e1);
+		}
+		notifyObservers(new CmsEditionEvent(nodePath,
+				CmsEditionEvent.STOP_EDITING));
+	}
+}