Bug 292813 [CommonNavigator] Please provide an API for enabling and disabling common navigator filters programmatically
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.27 Safari/532.0 Build Identifier: M20090917-0800 Recently I had a case where I wanted to enable/disable a common navigator filter from code and found it very difficult. I basically ended up using the code in org.eclipse.ui.internal.navigator.filters.UpdateActiveFiltersOperation as a reference and ended up manually creating or pruning an array, as well as adding/removing a corresponding ViewerFilter to/from and refreshing the underlying viewer. This seems quite complicated and I think others could benefit from it being API similar to how API was recently added to enable and disable content contributions (via INavigatorContentService#activateExtensions and INavigatorContentService#deactivateExtensions). Reproducible: Always
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/OpenTest.java
/*******************************************************************************
 * Copyright (c) 2003, 2009 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
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 * Contributors:
 *     IBM Corporation - initial API and implementation
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package org.eclipse.ui.tests.navigator;
import org.eclipse.core.commands.operations.IUndoableOperation;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.ui.internal.navigator.filters.UpdateActiveFiltersOperation;
public class OpenTest extends NavigatorTestBase {
	public OpenTest()
	{
		_navigatorInstanceId = TEST_VIEWER;
	}
	
	public void testNavigatorRootContents() throws Exception {
		_contentService.getActivationService().activateExtensions(
				new String[] { COMMON_NAVIGATOR_RESOURCE_EXT }, true); 
		
		IUndoableOperation updateFilters = new UpdateActiveFiltersOperation(
				_viewer, new String[0], true);