X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.common%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fcommon%2Fcontributor%2FAbstractViewpointContributionContributor.java;fp=bundles%2Forg.simantics.browsing.ui.common%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fcommon%2Fcontributor%2FAbstractViewpointContributionContributor.java;h=5544cc665f9d01010a13b1daf8481d66652518e6;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/contributor/AbstractViewpointContributionContributor.java b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/contributor/AbstractViewpointContributionContributor.java
new file mode 100644
index 000000000..5544cc665
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/contributor/AbstractViewpointContributionContributor.java
@@ -0,0 +1,102 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.browsing.ui.common.contributor;
+
+import java.util.Collection;
+import java.util.Collections;
+
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointContributionKey;
+import org.simantics.browsing.ui.NodeContext;
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;
+import org.simantics.browsing.ui.Tester;
+import org.simantics.browsing.ui.content.Contributor;
+import org.simantics.browsing.ui.content.ViewpointContribution;
+import org.simantics.browsing.ui.content.ViewpointContributionFactory;
+import org.simantics.utils.ReflectionUtils;
+
+/**
+ * @author Antti Villberg
+ *
+ * @param <T> the input type accepted by this contributor
+ */
+public abstract class AbstractViewpointContributionContributor<T> implements Contributor<ViewpointContributionFactory> {
+
+    private final Class<?> clazz;
+
+    public AbstractViewpointContributionContributor() {
+    	clazz = ReflectionUtils.getSingleParameterType(getClass());
+    }
+
+    public AbstractViewpointContributionContributor(Class<?> clazz) {
+    	this.clazz = clazz;
+    }
+
+    @Override
+    public Class<?> getInputClass() {
+        return clazz;
+    }
+
+    @Override
+    public ViewpointContributionFactory getFactory() {
+
+        return new ViewpointContributionFactory() {
+
+            @Override
+            public ViewpointContribution create(final PrimitiveQueryUpdater updater,
+                    final NodeContext context, final ViewpointContributionKey key) {
+
+                return new ViewpointContribution() {
+
+                	Collection<NodeContext> contribution = Collections.emptySet();
+                	
+                	@Override
+                	public Collection<NodeContext> getContribution() {
+
+                		Collection<NodeContext> current = AbstractViewpointContributionContributor.this.getContribution(updater, context, key); 
+
+                		for(NodeContext c : current) updater.incRef(c);
+                		for(NodeContext c : contribution) updater.decRef(c);
+                		contribution = current;
+
+                		return current;
+                		
+                	}
+
+                    @Override
+                    public Class<?> getInputClass() {
+                        return clazz;
+                    }
+
+                    @Override
+                    public Tester getNodeContextTester() {
+                        return AbstractViewpointContributionContributor.this.getNodeContextTester();
+                    }
+
+                };
+
+            }
+
+            @Override
+            public String getViewpointId() {
+                return AbstractViewpointContributionContributor.this.getViewpointId();
+            }
+
+        };
+
+    }
+
+    abstract public Collection<NodeContext> getContribution(PrimitiveQueryUpdater updater,
+            NodeContext context, ViewpointContributionKey key);
+
+    abstract public String getViewpointId();
+
+}