SearchDropDownAction.java :  » IDE-Eclipse » All-Other-packages » org » eclipse » search » internal » ui » Java Open Source

/*******************************************************************************
 * 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.search.internal.ui;

import java.util.Iterator;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IMenuCreator;

/**
 * @deprecated old search
 */
class SearchDropDownAction extends Action implements IMenuCreator {


  public static final int RESULTS_IN_DROP_DOWN= 10;

  private Menu fMenu;

  public SearchDropDownAction() {
    setText(SearchMessages.SearchResultView_previousSearches_text);
    setToolTipText(SearchMessages.SearchResultView_previousSearches_tooltip);
    SearchPluginImages.setImageDescriptors(this, SearchPluginImages.T_LCL, SearchPluginImages.IMG_LCL_SEARCH_HISTORY);
    setMenuCreator(this);
  }

  public void dispose() {
    if (fMenu != null)  {
      fMenu.dispose();
      fMenu= null;
    }
  }

  public Menu getMenu(Menu parent) {
    return null;
  }

  public Menu getMenu(Control parent) {
    if (fMenu != null)
      fMenu.dispose();

    fMenu= new Menu(parent);
    boolean checkedOne= false;
    Iterator iter= SearchManager.getDefault().getPreviousSearches().iterator();
    Search selected= SearchManager.getDefault().getCurrentSearch();
    int i= 0;
    while (iter.hasNext() && i++ < RESULTS_IN_DROP_DOWN) {
      Search search= (Search)iter.next();
      ShowSearchAction action= new ShowSearchAction(search);
      action.setChecked(search.equals(selected));
      if (search.equals(selected))
        checkedOne= true;
      addActionToMenu(fMenu, action);
    }
    new MenuItem(fMenu, SWT.SEPARATOR);
    if (iter.hasNext()) {
      Action others= new ShowSearchesAction();
      others.setChecked(!checkedOne);
      addActionToMenu(fMenu, others);
    }
    addActionToMenu(fMenu, new RemoveAllSearchesAction());
    return fMenu;
  }

  protected void addActionToMenu(Menu parent, Action action) {
    ActionContributionItem item= new ActionContributionItem(action);
    item.fill(parent, -1);
  }

  public void run() {
      new ShowSearchesAction().run(true);
  }

  /**
   * Get's rid of the menu, because the menu hangs on to
   * the searches, etc.
   */
  void clear() {
    dispose();
  }
}