content: /*******************************************************************************
   * Copyright (c) 2000, 2008 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.wst.jsdt.ui.text.folding;
  
  import org.eclipse.swt.widgets.Composite;
  import org.eclipse.swt.widgets.Control;
  
  
  /**
   * Contributors to the <code>org.eclipse.wst.jsdt.ui.foldingStructureProvider</code> extension point
   * can specify an implementation of this interface to be displayed on the JavaScript &gt; Editor &gt; Folding
   * preference page.
   * <p>
   * Clients may implement this interface.
   * </p>
   *
   *
   * Provisional API: This class/interface is part of an interim API that is still under development and expected to
   * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
   * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
   * (repeatedly) as the API evolves. */
  public interface IJavaFoldingPreferenceBlock {
  
  	/**
  	 * Creates the control that will be displayed on the JavaScript &gt; Editor &gt; Folding
  	 * preference page.
  	 *
  	 * @param parent the parent composite to which to add the preferences control
  	 * @return the control that was added to <code>parent</code>
  	 */
  	Control createControl(Composite parent);
  
  	/**
  	 * Called after creating the control. Implementations should load the
  	 * preferences values and update the controls accordingly.
  	 */
  	void initialize();
  
  	/**
  	 * Called when the <code>OK</code> button is pressed on the preference
  	 * page. Implementations should commit the configured preference settings
  	 * into their form of preference storage.
  	 */
  	void performOk();
  
  	/**
  	 * Called when the <code>Defaults</code> button is pressed on the
  	 * preference page. Implementation should reset any preference settings to
  	 * their default values and adjust the controls accordingly.
  	 */
  	void performDefaults();
  
  	/**
  	 * Called when the preference page is being disposed. Implementations should
  	 * free any resources they are holding on to.
  	 */
  	void dispose();
  
  }
  