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/NavigatorTestBase.java
}
		for (int i = 0; i < items.length; i++) {
			if (items[i] instanceof ActionContributionItem) {
				ActionContributionItem aci = (ActionContributionItem) items[i];
				if (aci.getAction().getText().startsWith(item))
					return true;
				if (DEBUG)
					System.out.println("action text: " + aci.getAction().getText());
			}
		}
		return false;
	}
	protected static final boolean ALL = true;
	protected static final boolean TEXT = true;
	protected void checkItems(TreeItem[] rootItems, TestLabelProvider tlp) {
		checkItems(rootItems, tlp, ALL, TEXT);
	}
	protected void checkItemsText(TreeItem[] rootItems, TestLabelProvider tlp, boolean all) {
		checkItems(rootItems, tlp, all, TEXT);
	}
	protected void checkItems(TreeItem[] rootItems, TestLabelProvider tlp, boolean all, boolean text) {
		for (int i = 0; i < rootItems.length; i++) {
			
			if (rootItems[i].getText() == null || rootItems[i].getText().equals(""))
				continue;
			if (text && !rootItems[i].getText().startsWith(tlp.getColorName()))
				fail("Wrong text: " + rootItems[i].getText());
			assertEquals(tlp.backgroundColor, rootItems[i].getBackground(0));
			assertEquals(TestLabelProvider.toForegroundColor(tlp.backgroundColor), rootItems[i]
					.getForeground(0));