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
.getData();
				if (tableItems[i].getChecked()) {
					checkedExtensions.add(descriptor.getId());
				}
			}
			String[] contentExtensionIdsToActivate = (String[]) checkedExtensions
					.toArray(new String[checkedExtensions.size()]);
			UpdateActiveExtensionsOperation updateExtensions = new UpdateActiveExtensionsOperation(
					commonViewer, contentExtensionIdsToActivate);
			updateExtensions.execute(null, null);
		}
		if (commonFiltersTab != null) {
			Set checkedFilters = commonFiltersTab.getCheckedItems();
			
			String[] filterIdsToActivate = new String[checkedFilters.size()];
			int indx = 0;
			for (Iterator iterator = checkedFilters.iterator(); iterator
					.hasNext();) {
				ICommonFilterDescriptor descriptor = (ICommonFilterDescriptor) iterator
						.next();
				filterIdsToActivate[indx++] = descriptor.getId();
			} 
			UpdateActiveFiltersOperation updateFilters = new UpdateActiveFiltersOperation(
					commonViewer, filterIdsToActivate, true);
			updateFilters.execute(null, null);
		}
		super.okPressed();
	}
}