Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.document.linking.ui / src / org / simantics / document / linking / ge / SourceLinkExplorerComposite.java

diff --git a/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/SourceLinkExplorerComposite.java b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/SourceLinkExplorerComposite.java
new file mode 100644 (file)
index 0000000..caf7348
--- /dev/null
+++ b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/SourceLinkExplorerComposite.java
@@ -0,0 +1,106 @@
+package org.simantics.document.linking.ge;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Map;\r
+\r
+import org.eclipse.jface.viewers.ISelectionProvider;\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.dnd.DndBrowseContext;\r
+import org.simantics.browsing.ui.swt.DefaultExplorerSelectionListener;\r
+import org.simantics.browsing.ui.swt.widgets.GraphExplorerComposite;\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.procedure.Procedure;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.ui.SimanticsUI;\r
+\r
+public class SourceLinkExplorerComposite extends GraphExplorerComposite {\r
+       \r
+       volatile DndBrowseContext dndBrowseContext;\r
+       private IWorkbenchSite site;\r
+       private MultiSelectionProvider provider;\r
+       \r
+    public SourceLinkExplorerComposite(Map<String, Object> args, MultiSelectionProvider provider, IWorkbenchSite site, Composite parent,  WidgetSupport support, int style) {\r
+        super(args, site, parent, support, style);\r
+        this.site = site;\r
+        this.provider = provider;\r
+        attachDND();\r
+        \r
+    }\r
+    \r
+    public SourceLinkExplorerComposite(Map<String, Object> args, MultiSelectionProvider provider, IWorkbenchSite site, Composite parent,  WidgetSupport support, boolean useDND, int style) {\r
+        super(args, site, parent, support, style);\r
+        this.site = site;\r
+        this.provider = provider;\r
+        if (useDND)\r
+               attachDND();\r
+    }\r
+    \r
+    private void attachDND() {\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 : getBrowseContexts()) {\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
+    public void setWorkbenchListeners() {\r
+        if (workbenchSelectionListener == null && site != null) {\r
+            ISelectionProvider selectionProvider = (ISelectionProvider) explorer.getAdapter(ISelectionProvider.class);\r
+            //site.setSelectionProvider(selectionProvider);\r
+            provider.addSelectionProvider(selectionProvider);\r
+\r
+            // Listen to the workbench selection also to propagate it to\r
+            // the explorer also.\r
+            workbenchSelectionListener = new DefaultExplorerSelectionListener(site.getPage().getActivePart(), explorer);\r
+            //System.out.println("ADD WORKBENCH SELECTION LISTENER: " + workbenchSelectionListener);\r
+            site.getWorkbenchWindow().getSelectionService().addPostSelectionListener(workbenchSelectionListener);\r
+        }\r
+    }\r
+       \r
+\r
+}\r