Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.common / src / org / simantics / browsing / ui / common / processors / DefaultComparableChildrenProcessor.java

diff --git a/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/processors/DefaultComparableChildrenProcessor.java b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/processors/DefaultComparableChildrenProcessor.java
new file mode 100644 (file)
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+++ b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/processors/DefaultComparableChildrenProcessor.java
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+/*******************************************************************************\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.browsing.ui.common.processors;\r
+\r
+import java.util.Collection;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.NodeQueryManager;\r
+import org.simantics.browsing.ui.NodeContext.QueryKey;\r
+import org.simantics.browsing.ui.content.ComparableContext;\r
+import org.simantics.browsing.ui.content.ComparableContextFactory;\r
+import org.simantics.browsing.ui.content.PrunedChildrenResult;\r
+\r
+public class DefaultComparableChildrenProcessor extends AbstractNodeQueryProcessor<ComparableContext[]> {\r
+\r
+    private ComparableContext[] build(NodeQueryManager manager, NodeContext context, ComparableContextFactory factory) {\r
+        PrunedChildrenResult pruned = manager.query(context, BuiltinKeys.PRUNED_CHILDREN);\r
+        NodeContext[] prunedChildren = pruned.getPrunedChildren();\r
+        return factory.create(manager, context, prunedChildren);\r
+    }\r
+\r
+    @Override\r
+    public ComparableContext[] query(NodeQueryManager manager, NodeContext context) {\r
+        Collection<ComparableContextFactory> factories = manager.query(context, BuiltinKeys.COMPARABLE_FACTORIES);\r
+        if(factories.isEmpty())\r
+            return null;\r
+\r
+        // TODO: use SelectedComparatorFactory query instead of this "educated guess"\r
+        ComparableContextFactory factory = factories.iterator().next();\r
+\r
+        return build(manager, context, factory);\r
+    }\r
+\r
+    @Override\r
+    public String toString() {\r
+        return "ComparableProcessor";\r
+    }\r
+\r
+    @Override\r
+    public QueryKey<ComparableContext[]> getIdentifier() {\r
+        return BuiltinKeys.COMPARABLE_CHILDREN;\r
+    }\r
+\r
+}
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