Package org.eclipse.ui.internal.actions

Source Code of org.eclipse.ui.internal.actions.NewEditorAction

/*******************************************************************************
* Copyright (c) 2005, 2007 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.ui.internal.actions;

import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IPersistableEditor;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.XMLMemento;
import org.eclipse.ui.internal.ActiveEditorAction;
import org.eclipse.ui.internal.IWorkbenchConstants;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.WorkbenchPage;
import org.eclipse.ui.internal.dialogs.DialogUtil;

/**
* Opens another editor of the same kind, and on the same input, as the active editor.
*
* @since 3.1
*/
public class NewEditorAction extends ActiveEditorAction {

  /**
   * Creates a new <code>NewEditorAction</code>.
   *
   * @param window the window in which the action will appear
   */
  public NewEditorAction(IWorkbenchWindow window) {
    super(WorkbenchMessages.NewEditorAction_text, window);
    setId("newEditorAction"); //$NON-NLS-1$
    setToolTipText(WorkbenchMessages.NewEditorAction_tooltip);
        setActionDefinitionId("org.eclipse.ui.window.newEditor"); //$NON-NLS-1$
  }

  /* (non-Javadoc)
   * @see org.eclipse.jface.action.Action#run()
   */
  public void run() {
    IWorkbenchPage page = getActivePage();
    IEditorPart editor = getActiveEditor();
    if (page == null || editor == null) {
      return;
    }
    String editorId = editor.getSite().getId();
    if (editorId == null) {
      return;
    }
    try {
      if (editor instanceof IPersistableEditor) {
        XMLMemento editorState = XMLMemento
            .createWriteRoot(IWorkbenchConstants.TAG_EDITOR_STATE);
        ((IPersistableEditor) editor).saveState(editorState);
        ((WorkbenchPage) page).openEditor(editor.getEditorInput(),
            editorId, true, IWorkbenchPage.MATCH_NONE, editorState);
      } else {
        page.openEditor(editor.getEditorInput(), editorId, true,
            IWorkbenchPage.MATCH_NONE);
      }
    } catch (PartInitException e) {
            DialogUtil.openError(page.getWorkbenchWindow().getShell(),
                    WorkbenchMessages.Error,
                    e.getMessage(), e);
    }
  }
}
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