Case Study: adding data and statistics

[ifi-stolz-refaktor.git] / case-study / jdt-before / ui / org / eclipse / jdt / internal / ui / javaeditor / ShowInBreadcrumbAction.java

diff --git a/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/javaeditor/ShowInBreadcrumbAction.java b/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/javaeditor/ShowInBreadcrumbAction.java
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+/*******************************************************************************
+ * Copyright (c) 2008, 2011 IBM Corporation 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:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.ui.javaeditor;
+
+import org.eclipse.jface.action.Action;
+import org.eclipse.jface.preference.IPreferenceStore;
+
+import org.eclipse.ui.PlatformUI;
+
+import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
+import org.eclipse.jdt.internal.ui.JavaPlugin;
+import org.eclipse.jdt.internal.ui.javaeditor.breadcrumb.IBreadcrumb;
+
+
+/**
+ * Action to set the focus into the editor breadcrumb.
+ * The breadcrumb is made visible if it is hidden.
+ *
+ * @since 3.4
+ */
+public class ShowInBreadcrumbAction extends Action {
+
+       private final JavaEditor fEditor;
+
+       public ShowInBreadcrumbAction(JavaEditor editor) {
+               super(JavaEditorMessages.ShowInBreadcrumbAction_label);
+               fEditor= editor;
+               setEnabled(true);
+               PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.SHOW_IN_BREADCRUMB_ACTION);
+       }
+
+       /*
+        * @see org.eclipse.jface.action.Action#run()
+        */
+       @Override
+       public void run() {
+               IBreadcrumb breadcrumb= fEditor.getBreadcrumb();
+               if (breadcrumb == null)
+                       return;
+
+               IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore();
+               store.setValue(getPreferenceKey(), true);
+
+               breadcrumb.activate();
+       }
+
+       /**
+        * Returns the preference key for the breadcrumb. The
+        * value depends on the current perspective.
+        *
+        * @return the preference key or <code>null</code> if there's no perspective
+        */
+       private String getPreferenceKey() {
+               return fEditor.getBreadcrumbPreferenceKey();
+       }
+
+}