Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.ui / src / org / simantics / ui / contribution / OperationsMenuContribution.java

diff --git a/bundles/org.simantics.ui/src/org/simantics/ui/contribution/OperationsMenuContribution.java b/bundles/org.simantics.ui/src/org/simantics/ui/contribution/OperationsMenuContribution.java
new file mode 100644 (file)
index 0000000..1b5dcfe
--- /dev/null
+++ b/bundles/org.simantics.ui/src/org/simantics/ui/contribution/OperationsMenuContribution.java
@@ -0,0 +1,110 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.ui.contribution;\r
+\r
+import java.lang.ref.WeakReference;\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+\r
+import org.eclipse.jface.action.Action;\r
+import org.eclipse.jface.action.IAction;\r
+import org.eclipse.jface.resource.ImageDescriptor;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.layer0.utils.collections.IContextualList;\r
+import org.simantics.layer0.utils.operations.IOperation;\r
+import org.simantics.project.IProject;\r
+import org.simantics.ui.SimanticsUI;\r
+import org.simantics.ui.icons.ImageUtil;\r
+import org.simantics.ui.utils.ResourceAdaptionUtils;\r
+import org.simantics.utils.datastructures.persistent.ContextMap;\r
+\r
+\r
+public abstract class OperationsMenuContribution extends DynamicMenuContribution {\r
+\r
+    protected abstract Resource getListResource(ReadGraph g) throws Exception;\r
+\r
+    protected void assignParameters(ContextMap parameters) {\r
+    }\r
+\r
+    @Override\r
+    protected boolean preAcceptSelection(Object[] selection) {\r
+        if(selection == null || selection.length != 1)\r
+            return false;\r
+        Resource r = ResourceAdaptionUtils.adaptToResource(selection[0]);\r
+        return r != null;\r
+    }\r
+\r
+    @Override\r
+    protected IAction[] getActions(ReadGraph g, Object[] selection) {\r
+        if(selection.length == 1) {\r
+            final Resource r = ResourceAdaptionUtils.adaptToResource(selection[0]);\r
+            if(r == null)\r
+               return NO_ACTIONS;\r
+            try {\r
+                return g.syncRequest(new Read<IAction[]>() {\r
+\r
+                    @Override\r
+                    public IAction[] perform(ReadGraph g) throws DatabaseException {\r
+                        IContextualList list;\r
+                        try {\r
+                            list = g.adapt(getListResource(g), IContextualList.class);\r
+                        } catch (Exception e) {\r
+                            e.printStackTrace();\r
+                            return null;\r
+                        }\r
+                        final ContextMap parameters = new ContextMap();\r
+                        parameters.put(IOperation.SUBJECT, r);\r
+                        IProject project = SimanticsUI.peekProject();\r
+                        if (project != null)\r
+                            parameters.put(IOperation.PROJECT, project.get());\r
+                        assignParameters(parameters);\r
+                        Collection<Resource> operations = new ArrayList<Resource>();\r
+                        list.fill(g, parameters, operations);\r
+\r
+                        if(!operations.isEmpty()) {\r
+                            IAction[] actions = new IAction[operations.size()];\r
+                            int i=0;\r
+                            for(Resource opRes : operations) {\r
+                                final IOperation op = g.adapt(opRes, IOperation.class);\r
+                                final ImageDescriptor imgDesc = ImageUtil.adaptImageDescriptor(g, opRes);\r
+                                final WeakReference<Session> sessionRef = new WeakReference<Session>(g.getSession());\r
+                                actions[i++] = new Action(op.getName(), imgDesc) {\r
+\r
+                                    @Override\r
+                                    public void run() {\r
+                                        Session session = sessionRef.get();\r
+                                        if (session != null)\r
+                                            op.exec(session, parameters);\r
+                                    }\r
+\r
+                                };\r
+                            }\r
+                            return actions;\r
+                        } else {\r
+                            return null;\r
+                        }\r
+                    }\r
+\r
+                });\r
+            } catch (DatabaseException e) {\r
+                e.printStackTrace();\r
+            }\r
+\r
+        }\r
+        return NO_ACTIONS;\r
+    }\r
+\r
+}\r