1 files changed, 151 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.cdo.lm.ui/src/org/eclipse/emf/cdo/lm/ui/decorators/AvailableUpdatesDecorator.java b/plugins/org.eclipse.emf.cdo.lm.ui/src/org/eclipse/emf/cdo/lm/ui/decorators/AvailableUpdatesDecorator.java
new file mode 100644
index 0000000000..34b1de7443
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.lm.ui/src/org/eclipse/emf/cdo/lm/ui/decorators/AvailableUpdatesDecorator.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2022 Eike Stepper (Loehne, Germany) and others.
+ * 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:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.emf.cdo.lm.ui.decorators;
+
+import org.eclipse.emf.cdo.lm.LMPackage;
+import org.eclipse.emf.cdo.lm.assembly.AssemblyModule;
+import org.eclipse.emf.cdo.lm.client.IAssemblyDescriptor;
+import org.eclipse.emf.cdo.lm.client.IAssemblyDescriptor.AvailableUpdatesChangedEvent;
+import org.eclipse.emf.cdo.lm.client.IAssemblyDescriptor.UpdateStateChangedEvent;
+import org.eclipse.emf.cdo.lm.client.IAssemblyDescriptor.Updates;
+import org.eclipse.emf.cdo.lm.client.IAssemblyManager;
+import org.eclipse.emf.cdo.lm.ui.bundle.OM;
+import org.eclipse.emf.cdo.util.CDOUtil;
+
+import org.eclipse.net4j.util.StringUtil;
+import org.eclipse.net4j.util.container.SelfAttachingContainerListener;
+import org.eclipse.net4j.util.event.IEvent;
+import org.eclipse.net4j.util.event.IListener;
+import org.eclipse.net4j.util.ui.UIUtil;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.BaseLabelProvider;
+import org.eclipse.jface.viewers.IDecoration;
+import org.eclipse.jface.viewers.ILightweightLabelDecorator;
+import org.eclipse.jface.viewers.LabelProviderChangedEvent;
+
+/**
+ * @author Eike Stepper
+ */
+public class AvailableUpdatesDecorator extends BaseLabelProvider implements ILightweightLabelDecorator
+{
+  private final ImageDescriptor updateModification = OM.getImageDescriptor("icons/overlay/UpdateModification.png");
+
+  private final ImageDescriptor updateAddition = OM.getImageDescriptor("icons/overlay/UpdateAddition.png");
+
+  private final ImageDescriptor updateRemoval = OM.getImageDescriptor("icons/overlay/UpdateRemoval.png");
+
+  private final IListener assemblyManagerListener = new SelfAttachingContainerListener()
+  {
+    @Override
+    protected void notifyOtherEvent(IEvent event)
+    {
+      super.notifyOtherEvent(event);
+
+      if (event instanceof UpdateStateChangedEvent)
+      {
+        UpdateStateChangedEvent e = (UpdateStateChangedEvent)event;
+        IAssemblyDescriptor descriptor = e.getDescriptor();
+        fireLabelEvent(descriptor, descriptor.getCheckout());
+      }
+      else if (event instanceof AvailableUpdatesChangedEvent)
+      {
+        AvailableUpdatesChangedEvent e = (AvailableUpdatesChangedEvent)event;
+        Object[] modules = e.getDescriptor().getModules(true);
+        fireLabelEvent(modules);
+      }
+    }
+  };
+
+  public AvailableUpdatesDecorator()
+  {
+    IAssemblyManager.INSTANCE.addListener(assemblyManagerListener);
+  }
+
+  @Override
+  public void dispose()
+  {
+    IAssemblyManager.INSTANCE.removeListener(assemblyManagerListener);
+    super.dispose();
+  }
+
+  @Override
+  public void decorate(Object element, IDecoration decoration)
+  {
+    if (element instanceof IAssemblyDescriptor)
+    {
+      IAssemblyDescriptor descriptor = (IAssemblyDescriptor)element;
+      if (descriptor.hasUpdatesAvailable())
+      {
+        decoration.addOverlay(updateModification, IDecoration.TOP_RIGHT);
+      }
+    }
+    else if (element instanceof AssemblyModule)
+    {
+      AssemblyModule module = (AssemblyModule)element;
+      String moduleName = module.getName();
+
+      IAssemblyDescriptor descriptor = IAssemblyManager.INSTANCE.getDescriptor(module);
+      if (descriptor != null)
+      {
+        Updates updates = descriptor.getAvailableUpdates();
+        if (updates != null)
+        {
+          if (updates.getAdditions().containsKey(moduleName))
+          {
+            decoration.addOverlay(updateAddition, IDecoration.TOP_RIGHT);
+          }
+          else if (updates.getRemovals().contains(moduleName))
+          {
+            decoration.addOverlay(updateRemoval, IDecoration.TOP_RIGHT);
+          }
+          else
+          {
+            AssemblyModule changedModule = updates.getModifications().get(moduleName);
+            if (changedModule != null)
+            {
+              decoration.addOverlay(updateModification, IDecoration.TOP_RIGHT);
+              decoration.addSuffix(" \u2190 " + getSuffix(changedModule));
+            }
+          }
+        }
+      }
+    }
+  }
+
+  private void fireLabelEvent(Object... elements)
+  {
+    UIUtil.asyncExec(() -> fireLabelProviderChanged(new LabelProviderChangedEvent(this, elements)));
+  }
+
+  public static String getSuffix(AssemblyModule module)
+  {
+    String text = StringUtil.safe(module.getVersion());
+
+    String baseline = CDOUtil.getAnnotation(module, //
+        LMPackage.ANNOTATION_SOURCE, //
+        LMPackage.ANNOTATION_DETAIL_BASELINE_NAME);
+    if (!StringUtil.isEmpty(baseline))
+    {
+      String type = CDOUtil.getAnnotation(module, //
+          LMPackage.ANNOTATION_SOURCE, //
+          LMPackage.ANNOTATION_DETAIL_BASELINE_TYPE);
+      if (!StringUtil.isEmpty(type))
+      {
+        baseline = type + " " + baseline;
+      }
+
+      text += " [" + baseline + "]";
+    }
+
+    return text;
+  }
+}