X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.document.ui%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Fui%2Factions%2FFolderDropAction.java;fp=bundles%2Forg.simantics.document.ui%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Fui%2Factions%2FFolderDropAction.java;h=3004919b4633913f3c74bb0913a873a479d9007d;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.document.ui/src/org/simantics/document/ui/actions/FolderDropAction.java b/bundles/org.simantics.document.ui/src/org/simantics/document/ui/actions/FolderDropAction.java
new file mode 100644
index 000000000..3004919b4
--- /dev/null
+++ b/bundles/org.simantics.document.ui/src/org/simantics/document/ui/actions/FolderDropAction.java
@@ -0,0 +1,77 @@
+package org.simantics.document.ui.actions;
+
+import java.util.List;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.SelectionHints;
+import org.simantics.db.layer0.adapter.DropActionFactory;
+import org.simantics.document.DocumentResource;
+import org.simantics.ui.SimanticsUI;
+import org.simantics.utils.ui.ISelectionUtils;
+
+public class FolderDropAction implements DropActionFactory {
+	
+	private Resource folderType;
+	private Resource relation;
+	private Resource inverse;
+	
+	public FolderDropAction(ReadGraph graph, String folderUri, String relationUri) throws DatabaseException {
+		folderType = graph.getResource(folderUri);
+		relation = graph.getResource(relationUri);
+		inverse = graph.getPossibleInverse(relation);
+	}
+	
+	@Override
+	public Runnable create(ReadGraph g, Object target, Object source, int operation) throws DatabaseException {
+		final Resource lib = ISelectionUtils.getSinglePossibleKey(target, SelectionHints.KEY_MAIN, Resource.class);
+
+		if (lib == null)
+			return null;
+
+		final List<Resource> selections = ISelectionUtils.getPossibleKeys(source, SelectionHints.KEY_MAIN, Resource.class);
+
+		if (selections.isEmpty()) {
+			return null;
+		}
+		if (!g.isInstanceOf(lib, folderType))
+			return null;
+		DocumentResource doc = DocumentResource.getInstance(g);
+		for (Resource r : selections) {
+			if (!g.isInstanceOf(r, doc.Document))
+				return null;
+		}
+		Runnable runnable = new Runnable() {
+
+			@Override
+			public void run() {
+				SimanticsUI.getSession().asyncRequest(new WriteRequest() {
+
+					@Override
+					public void perform(WriteGraph graph) throws DatabaseException {
+						
+						for (Resource r : selections) {
+							if (!graph.hasStatement(lib,relation,r)) {
+								if (inverse != null) {
+									// check if moved document is children of another document (tree revisions)
+									// if it is, prevent moving it.
+									Resource r2 = graph.getPossibleObject(r, inverse);
+									if (r2 != null && !graph.isInstanceOf(r2, folderType))
+										continue;
+									graph.deny(r,inverse);
+								}
+								graph.claim(lib, relation,r);
+							}
+						}
+					}
+				});
+			}
+		};
+		return runnable;
+		
+	}
+
+}