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[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / ui / actions / OpenActionUtil.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/actions/OpenActionUtil.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/actions/OpenActionUtil.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.actions;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import net.sourceforge.phpdt.core.IJavaElement;
+import net.sourceforge.phpdt.core.ISourceReference;
+import net.sourceforge.phpdt.core.JavaModelException;
+import net.sourceforge.phpdt.ui.JavaElementLabelProvider;
+import net.sourceforge.phpeclipse.phpeditor.EditorUtility;
+
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.dialogs.ElementListSelectionDialog;
+
+public class OpenActionUtil {
+       
+       private OpenActionUtil() {
+               // no instance.
+       }
+               
+       /**
+        * Opens the editor on the given element and subsequently selects it.
+        */
+       public static void open(Object element) throws JavaModelException, PartInitException {
+               open(element, true);
+       }
+       
+       /**
+        * Opens the editor on the given element and subsequently selects it.
+        */
+       public static void open(Object element, boolean activate) throws JavaModelException, PartInitException {
+               IEditorPart part= EditorUtility.openInEditor(element, activate);
+               if (element instanceof IJavaElement)
+                       EditorUtility.revealInEditor(part, (IJavaElement)element);
+       }
+       
+       /**
+        * Filters out source references from the given code resolve results.
+        * A utility method that can be called by subclassers. 
+        */
+       public static List filterResolveResults(IJavaElement[] codeResolveResults) {
+               int nResults= codeResolveResults.length;
+               List refs= new ArrayList(nResults);
+               for (int i= 0; i < nResults; i++) {
+                       if (codeResolveResults[i] instanceof ISourceReference)
+                               refs.add(codeResolveResults[i]);
+               }
+               return refs;
+       }
+                                               
+       /**
+        * Shows a dialog for resolving an ambigous java element.
+        * Utility method that can be called by subclassers.
+        */
+       public static IJavaElement selectJavaElement(IJavaElement[] elements, Shell shell, String title, String message) {
+               
+               int nResults= elements.length;
+               
+               if (nResults == 0)
+                       return null;
+               
+               if (nResults == 1)
+                       return elements[0];
+               
+               int flags= JavaElementLabelProvider.SHOW_DEFAULT
+                                               | JavaElementLabelProvider.SHOW_QUALIFIED
+                                               | JavaElementLabelProvider.SHOW_ROOT;
+                                               
+               ElementListSelectionDialog dialog= new ElementListSelectionDialog(shell, new JavaElementLabelProvider(flags));
+               dialog.setTitle(title);
+               dialog.setMessage(message);
+               dialog.setElements(elements);
+               
+               if (dialog.open() == ElementListSelectionDialog.OK) {
+                       Object[] selection= dialog.getResult();
+                       if (selection != null && selection.length > 0) {
+                               nResults= selection.length;
+                               for (int i= 0; i < nResults; i++) {
+                                       Object current= selection[i];
+                                       if (current instanceof IJavaElement)
+                                               return (IJavaElement) current;
+                               }
+                       }
+               }               
+               return null;
+       }       
+}