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
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/filters/CommonFilterSelectionDialog.java
boolean hideExtensionsTab = contentService.getViewerDescriptor()
				.getBooleanConfigProperty(
						INavigatorViewerDescriptor.PROP_HIDE_AVAILABLE_EXT_TAB);
		if (!hideExtensionsTab) { 
			contentExtensionsTab = new ContentExtensionsTab(
					customizationsTabFolder, contentService);
			createTabItem(
					customizationsTabFolder,
					CommonNavigatorMessages.CommonFilterSelectionDialog_Available_Content,
					contentExtensionsTab, CONTENT_ICON);
			
		}
		createDescriptionText(superComposite);
		if (commonFiltersTab != null) {
			commonFiltersTab.addSelectionChangedListener(getSelectionListener());
		}
		if (contentExtensionsTab != null) {
			contentExtensionsTab
					.addSelectionChangedListener(getSelectionListener());
		}
	
		commonFiltersTab.setInitialFocus();
		
		return customizationsTabFolder;
	}
	private void createCustomizationsTabFolder(Composite superComposite) {
		customizationsTabFolder = new CTabFolder (superComposite, SWT.RESIZE | SWT.BORDER);
 
		GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
		gd.widthHint = convertHorizontalDLUsToPixels(TAB_WIDTH_IN_DLUS);