Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / widgets / ModelBrowser.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/ModelBrowser.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/ModelBrowser.java
new file mode 100644 (file)
index 0000000..e46463a
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/ModelBrowser.java
@@ -0,0 +1,146 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 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.browsing.ui.swt.widgets;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+import java.util.HashSet;\r
+import java.util.Map;\r
+import java.util.Set;\r
+\r
+import org.eclipse.swt.widgets.Composite;\r
+import org.eclipse.ui.IWorkbenchSite;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.common.ErrorLogger;\r
+import org.simantics.browsing.ui.model.InvalidContribution;\r
+import org.simantics.browsing.ui.model.browsecontexts.BrowseContext;\r
+import org.simantics.browsing.ui.model.dnd.DndBrowseContext;\r
+import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ReadRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.exception.ResourceNotFoundException;\r
+import org.simantics.db.procedure.Procedure;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.ui.SimanticsUI;\r
+import org.simantics.utils.ui.ExceptionUtils;\r
+\r
+public class ModelBrowser extends GraphExplorerComposite {\r
+\r
+    volatile DndBrowseContext dndBrowseContext;\r
+\r
+    private static final String CONTEXT_MENU_ID = "#GraphExplorerPopup";\r
+\r
+    protected Set<String>                                 propertyBrowseContexts = Collections.emptySet();\r
+\r
+    protected boolean                                     hideComparatorSelector = false;\r
+    protected boolean                                     hideViewpointSelector = false;\r
+    protected boolean                                     hideFilter = false;\r
+\r
+    @Override\r
+    protected String getContextMenuId() {\r
+       if(contextMenuId != null) return contextMenuId;\r
+       else return CONTEXT_MENU_ID;\r
+    }\r
+\r
+    @Override\r
+    protected void createControls(Composite parent) {\r
+        this.propertyBrowseContexts = loadBrowseContexts(getBrowseContexts());\r
+        super.createControls(parent);\r
+    }\r
+\r
+    protected static Set<String> loadBrowseContexts(final Set<String> browseContexts) {\r
+        try {\r
+            return SimanticsUI.getSession().syncRequest(new Read<Set<String>>() {\r
+                @Override\r
+                public Set<String> perform(ReadGraph graph) throws DatabaseException {\r
+                    Collection<Resource> browseContextResources = new ArrayList<Resource>(browseContexts.size());\r
+                    for (String browseContext : browseContexts) {\r
+                        try {\r
+                            browseContextResources.add(graph.getResource(browseContext));\r
+                        } catch (ResourceNotFoundException e) {\r
+                            // Expected result, if no modelled contributions exist.\r
+                            //System.err.println("Didn't find " + browseContext + " while loading model browser.");\r
+                        } catch (DatabaseException e) {\r
+                            ExceptionUtils.logError("Didn't find " + browseContext + " while loading model browser.", e);\r
+                        }\r
+                    }\r
+                    Collection<Resource> allBrowseContextResources = BrowseContext.findSubcontexts(graph, browseContextResources);\r
+                    Set<String> result = new HashSet<String>();\r
+                    for (Resource r : allBrowseContextResources)\r
+                        result.add(graph.getURI(r));\r
+                    return result;\r
+                }\r
+            });\r
+        } catch (DatabaseException e) {\r
+            ExceptionUtils.logAndShowError("Failed to load modeled browse contexts for property page, see exception for details.", e);\r
+            return browseContexts;\r
+        }\r
+    }\r
+    \r
+    public ModelBrowser(final Set<String> _browseContexts, Map<String, Object> args, IWorkbenchSite site, Composite parent, WidgetSupport support, int style) {\r
+       \r
+       super(args, site, parent, support, style);\r
+    \r
+       setBrowseContexts(_browseContexts);\r
+       \r
+        // As long as these are not useful, don't shown them by default.\r
+        this.hideComparatorSelector = true;\r
+        this.hideViewpointSelector = true;\r
+\r
+        SimanticsUI.getSession().asyncRequest(new ReadRequest() {\r
+            @Override\r
+            public void run(ReadGraph graph) throws DatabaseException { \r
+                ArrayList<Resource> browseContexts = new ArrayList<Resource>();\r
+                for (String uri : _browseContexts) {\r
+                    Resource browseContext = graph.getPossibleResource(uri);\r
+                    if (browseContext != null)\r
+                        browseContexts.add(browseContext);\r
+                }\r
+                try {\r
+                    dndBrowseContext = DndBrowseContext.create(graph, browseContexts);\r
+                } catch (InvalidContribution e) {\r
+                    ErrorLogger.defaultLogError(e);\r
+                }\r
+            }\r
+        });\r
+    }\r
+\r
+    @Override\r
+    protected void handleDrop(final Object data, final NodeContext target) {\r
+        if (target == null)\r
+            return;\r
+\r
+        SimanticsUI.getSession().asyncRequest(new Read<Runnable>() {\r
+            @Override\r
+            public Runnable perform(ReadGraph graph) throws DatabaseException {\r
+                if (dndBrowseContext == null)\r
+                    return null;\r
+                return dndBrowseContext.getAction(graph, target, data);\r
+            }\r
+        }, new Procedure<Runnable>() {\r
+            @Override\r
+            public void execute(Runnable result) {\r
+                if (result != null)\r
+                    result.run();\r
+            }\r
+\r
+            @Override\r
+            public void exception(Throwable t) {\r
+                ErrorLogger.defaultLogError(t);\r
+            }\r
+        });\r
+    }\r
+\r
+}\r