+ * This class may be instantiated; it is not intended to be subclassed. + *
+ * + * @since 2.0 + */ +public class CustomFiltersActionGroup extends ActionGroup { + + class ShowFilterDialogAction extends Action { + ShowFilterDialogAction() { + setText(FilterMessages + .getString("OpenCustomFiltersDialogAction.text")); //$NON-NLS-1$ + setImageDescriptor(PHPUiImages.DESC_ELCL_FILTER); + setDisabledImageDescriptor(PHPUiImages.DESC_DLCL_FILTER); + } + + public void run() { + openDialog(); + } + } + + /** + * Menu contribution item which shows and lets check and uncheck filters. + * + * @since 3.0 + */ + class FilterActionMenuContributionItem extends ContributionItem { + + private int fItemNumber; + + private boolean fState; + + private String fFilterId; + + private String fFilterName; + + private CustomFiltersActionGroup fActionGroup; + + /** + * Constructor for FilterActionMenuContributionItem. + * + * @param actionGroup + * the action group + * @param filterId + * the id of the filter + * @param filterName + * the name of the filter + * @param state + * the initial state of the filter + * @param itemNumber + * the menu item index + */ + public FilterActionMenuContributionItem( + CustomFiltersActionGroup actionGroup, String filterId, + String filterName, boolean state, int itemNumber) { + super(filterId); + Assert.isNotNull(actionGroup); + Assert.isNotNull(filterId); + Assert.isNotNull(filterName); + fActionGroup = actionGroup; + fFilterId = filterId; + fFilterName = filterName; + fState = state; + fItemNumber = itemNumber; + } + + /* + * Overrides method from ContributionItem. + */ + public void fill(Menu menu, int index) { + MenuItem mi = new MenuItem(menu, SWT.CHECK, index); + mi.setText("&" + fItemNumber + " " + fFilterName); //$NON-NLS-1$ //$NON-NLS-2$ + /* + * XXX: Don't set the image - would look bad because other menu + * items don't provide image XXX: Get working set specific image + * name from XML - would need to cache icons + */ + // mi.setImage(JavaPluginImages.get(JavaPluginImages.IMG_OBJS_JAVA_WORKING_SET)); + mi.setSelection(fState); + mi.addSelectionListener(new SelectionAdapter() { + public void widgetSelected(SelectionEvent e) { + fState = !fState; + fActionGroup.setFilter(fFilterId, fState); + } + }); + } + + /* + * @see org.eclipse.jface.action.IContributionItem#isDynamic() + */ + public boolean isDynamic() { + return true; + } + } + + private static final String TAG_CUSTOM_FILTERS = "customFilters"; //$NON-NLS-1$ + + private static final String TAG_USER_DEFINED_PATTERNS_ENABLED = "userDefinedPatternsEnabled"; //$NON-NLS-1$ + + private static final String TAG_USER_DEFINED_PATTERNS = "userDefinedPatterns"; //$NON-NLS-1$ + + private static final String TAG_XML_DEFINED_FILTERS = "xmlDefinedFilters"; //$NON-NLS-1$ + + private static final String TAG_LRU_FILTERS = "lastRecentlyUsedFilters"; //$NON-NLS-1$ + + private static final String TAG_CHILD = "child"; //$NON-NLS-1$ + + private static final String TAG_PATTERN = "pattern"; //$NON-NLS-1$ + + private static final String TAG_FILTER_ID = "filterId"; //$NON-NLS-1$ + + private static final String TAG_IS_ENABLED = "isEnabled"; //$NON-NLS-1$ + + private static final String SEPARATOR = ","; //$NON-NLS-1$ + + private static final int MAX_FILTER_MENU_ENTRIES = 3; + + private static final String RECENT_FILTERS_GROUP_NAME = "recentFiltersGroup"; //$NON-NLS-1$ + + private StructuredViewer fViewer; + + private NamePatternFilter fPatternFilter; + + private Map fInstalledBuiltInFilters; + + private Map fEnabledFilterIds; + + private boolean fUserDefinedPatternsEnabled; + + private String[] fUserDefinedPatterns; + + /** + * Recently changed filter Ids stack with oldest on top (i.e. at the end). + * + * @since 3.0 + */ + private Stack fLRUFilterIdsStack; + + /** + * Handle to menu manager to dynamically update the last recently used + * filters. + * + * @since 3.0 + */ + private IMenuManager fMenuManager; + + /** + * The menu listener which dynamically updates the last recently used + * filters. + * + * @since 3.0 + */ + private IMenuListener fMenuListener; + + /** + * Filter Ids used in the last view menu invocation. + * + * @since 3.0 + */ + private String[] fFilterIdsUsedInLastViewMenu; + + private HashMap fFilterDescriptorMap; + + private String fTargetId; + + /** + * Creates a newCustomFiltersActionGroup.
+ *
+ * @param part
+ * the view part that owns this action group
+ * @param viewer
+ * the viewer to be filtered
+ */
+// public CustomFiltersActionGroup(IViewPart part, StructuredViewer viewer) {
+// this(part.getViewSite().getId(), viewer);
+// }
+
+ /**
+ * Creates a new CustomFiltersActionGroup.
+ *
+ * @param ownerId
+ * the id of this action group's owner
+ * @param viewer
+ * the viewer to be filtered
+ */
+ public CustomFiltersActionGroup(String ownerId, StructuredViewer viewer) {
+ Assert.isNotNull(ownerId);
+ Assert.isNotNull(viewer);
+ fTargetId = ownerId;
+ fViewer = viewer;
+
+ fLRUFilterIdsStack = new Stack();
+
+ initializeWithPluginContributions();
+ initializeWithViewDefaults();
+
+ installFilters();
+ }
+
+ /*
+ * Method declared on ActionGroup.
+ */
+ public void fillActionBars(IActionBars actionBars) {
+ fillToolBar(actionBars.getToolBarManager());
+ fillViewMenu(actionBars.getMenuManager());
+ }
+
+// public String[] removeFiltersFor(Object parent, Object element,
+// IContentProvider contentProvider) {
+// String[] enabledFilters = getEnabledFilterIds();
+// Set newFilters = new HashSet();
+// for (int i = 0; i < enabledFilters.length; i++) {
+// String filterName = enabledFilters[i];
+// ViewerFilter filter = (ViewerFilter) fInstalledBuiltInFilters
+// .get(filterName);
+// if (filter == null)
+// newFilters.add(filterName);
+// else if (isSelected(parent, element, contentProvider, filter))
+// newFilters.add(filterName);
+// }
+// if (newFilters.size() == enabledFilters.length)
+// return new String[0];
+// return (String[]) newFilters.toArray(new String[newFilters.size()]);
+// }
+
+ public void setFilters(String[] newFilters) {
+ setEnabledFilterIds(newFilters);
+ updateViewerFilters(true);
+ }
+
+// private boolean isSelected(Object parent, Object element,
+// IContentProvider contentProvider, ViewerFilter filter) {
+// if (contentProvider instanceof ITreeContentProvider) {
+// // the element and all its parents have to be selected
+// ITreeContentProvider provider = (ITreeContentProvider) contentProvider;
+// while (element != null && !(element instanceof IJavaModel)) {
+// if (!filter.select(fViewer, parent, element))
+// return false;
+// element = provider.getParent(element);
+// }
+// return true;
+// }
+// return filter.select(fViewer, parent, element);
+// }
+
+ /**
+ * Sets the enable state of the given filter.
+ *
+ * @param filterId
+ * the id of the filter
+ * @param state
+ * the filter state
+ */
+ private void setFilter(String filterId, boolean state) {
+ // Renew filter id in LRU stack
+ fLRUFilterIdsStack.remove(filterId);
+ fLRUFilterIdsStack.add(0, filterId);
+
+ fEnabledFilterIds.put(filterId, new Boolean(state));
+ storeViewDefaults();
+
+ updateViewerFilters(true);
+ }
+
+ private String[] getEnabledFilterIds() {
+ Set enabledFilterIds = new HashSet(fEnabledFilterIds.size());
+ Iterator iter = fEnabledFilterIds.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry entry = (Map.Entry) iter.next();
+ String id = (String) entry.getKey();
+ boolean isEnabled = ((Boolean) entry.getValue()).booleanValue();
+ if (isEnabled)
+ enabledFilterIds.add(id);
+ }
+ return (String[]) enabledFilterIds.toArray(new String[enabledFilterIds
+ .size()]);
+ }
+
+ private void setEnabledFilterIds(String[] enabledIds) {
+ Iterator iter = fEnabledFilterIds.keySet().iterator();
+ while (iter.hasNext()) {
+ String id = (String) iter.next();
+ fEnabledFilterIds.put(id, Boolean.FALSE);
+ }
+ for (int i = 0; i < enabledIds.length; i++)
+ fEnabledFilterIds.put(enabledIds[i], Boolean.TRUE);
+ }
+
+ private void setUserDefinedPatterns(String[] patterns) {
+ fUserDefinedPatterns = patterns;
+ cleanUpPatternDuplicates();
+ }
+
+ /**
+ * Sets the recently changed filters.
+ *
+ * @param changeHistory
+ * the change history
+ * @since 3.0
+ */
+ private void setRecentlyChangedFilters(Stack changeHistory) {
+ Stack oldestFirstStack = new Stack();
+
+ int length = Math.min(changeHistory.size(), MAX_FILTER_MENU_ENTRIES);
+ for (int i = 0; i < length; i++)
+ oldestFirstStack.push(((FilterDescriptor) changeHistory.pop())
+ .getId());
+
+ length = Math.min(fLRUFilterIdsStack.size(), MAX_FILTER_MENU_ENTRIES
+ - oldestFirstStack.size());
+ int NEWEST = 0;
+ for (int i = 0; i < length; i++) {
+ Object filter = fLRUFilterIdsStack.remove(NEWEST);
+ if (!oldestFirstStack.contains(filter))
+ oldestFirstStack.push(filter);
+ }
+ fLRUFilterIdsStack = oldestFirstStack;
+ }
+
+ private boolean areUserDefinedPatternsEnabled() {
+ return fUserDefinedPatternsEnabled;
+ }
+
+ private void setUserDefinedPatternsEnabled(boolean state) {
+ fUserDefinedPatternsEnabled = state;
+ }
+
+ private void fillToolBar(IToolBarManager tooBar) {
+ }
+
+ /**
+ * Fills the given view menu with the entries managed by the group.
+ *
+ * @param viewMenu
+ * the menu to fill
+ */
+ public void fillViewMenu(IMenuManager viewMenu) {
+ /*
+ * Don't change the separator group name. Using this name ensures that
+ * other filters get contributed to the same group.
+ */
+ viewMenu.add(new Separator("filters")); //$NON-NLS-1$
+ viewMenu.add(new GroupMarker(RECENT_FILTERS_GROUP_NAME));
+ viewMenu.add(new ShowFilterDialogAction());
+
+ fMenuManager = viewMenu;
+ fMenuListener = new IMenuListener() {
+ public void menuAboutToShow(IMenuManager manager) {
+ removePreviousLRUFilterActions(manager);
+ addLRUFilterActions(manager);
+ }
+ };
+ fMenuManager.addMenuListener(fMenuListener);
+ }
+
+ private void removePreviousLRUFilterActions(IMenuManager mm) {
+ if (fFilterIdsUsedInLastViewMenu == null)
+ return;
+
+ for (int i = 0; i < fFilterIdsUsedInLastViewMenu.length; i++)
+ mm.remove(fFilterIdsUsedInLastViewMenu[i]);
+ }
+
+ private void addLRUFilterActions(IMenuManager mm) {
+ if (fLRUFilterIdsStack.isEmpty()) {
+ fFilterIdsUsedInLastViewMenu = null;
+ return;
+ }
+
+ SortedSet sortedFilters = new TreeSet(fLRUFilterIdsStack);
+ String[] recentlyChangedFilterIds = (String[]) sortedFilters
+ .toArray(new String[sortedFilters.size()]);
+
+ fFilterIdsUsedInLastViewMenu = new String[recentlyChangedFilterIds.length];
+ for (int i = 0; i < recentlyChangedFilterIds.length; i++) {
+ String id = recentlyChangedFilterIds[i];
+ fFilterIdsUsedInLastViewMenu[i] = id;
+ boolean state = fEnabledFilterIds.containsKey(id)
+ && ((Boolean) fEnabledFilterIds.get(id)).booleanValue();
+ FilterDescriptor filterDesc = (FilterDescriptor) fFilterDescriptorMap
+ .get(id);
+ if (filterDesc != null) {
+ IContributionItem item = new FilterActionMenuContributionItem(
+ this, id, filterDesc.getName(), state, i + 1);
+ mm.insertBefore(RECENT_FILTERS_GROUP_NAME, item);
+ }
+ }
+ }
+
+ /*
+ * Method declared on ActionGroup.
+ */
+ public void dispose() {
+ if (fMenuManager != null)
+ fMenuManager.removeMenuListener(fMenuListener);
+ super.dispose();
+ }
+
+ private void initializeWithPluginContributions() {
+ fUserDefinedPatterns = new String[0];
+ fUserDefinedPatternsEnabled = false;
+
+ FilterDescriptor[] filterDescs = FilterDescriptor
+ .getFilterDescriptors(fTargetId);
+ fFilterDescriptorMap = new HashMap(filterDescs.length);
+ fEnabledFilterIds = new HashMap(filterDescs.length);
+ for (int i = 0; i < filterDescs.length; i++) {
+ String id = filterDescs[i].getId();
+ Boolean isEnabled = new Boolean(filterDescs[i].isEnabled());
+ if (fEnabledFilterIds.containsKey(id))
+ PHPeclipsePlugin
+ .logErrorMessage("WARNING: Duplicate id for extension-point \"net.sourceforge.phpdt.ui.javaElementFilters\""); //$NON-NLS-1$
+ fEnabledFilterIds.put(id, isEnabled);
+ fFilterDescriptorMap.put(id, filterDescs[i]);
+ }
+ }
+
+ // ---------- viewer filter handling ----------
+
+ private void installFilters() {
+ fInstalledBuiltInFilters = new HashMap(fEnabledFilterIds.size());
+ fPatternFilter = new NamePatternFilter();
+ fPatternFilter.setPatterns(getUserAndBuiltInPatterns());
+ fViewer.addFilter(fPatternFilter);
+ updateBuiltInFilters();
+ }
+
+ private void updateViewerFilters(boolean refresh) {
+ String[] patterns = getUserAndBuiltInPatterns();
+ fPatternFilter.setPatterns(patterns);
+ fViewer.getControl().setRedraw(false);
+ updateBuiltInFilters();
+ if (refresh)
+ fViewer.refresh();
+ fViewer.getControl().setRedraw(true);
+ }
+
+ private void updateBuiltInFilters() {
+ Set installedFilters = fInstalledBuiltInFilters.keySet();
+ Set filtersToAdd = new HashSet(fEnabledFilterIds.size());
+ Set filtersToRemove = new HashSet(fEnabledFilterIds.size());
+ Iterator iter = fEnabledFilterIds.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry entry = (Map.Entry) iter.next();
+ String id = (String) entry.getKey();
+ boolean isEnabled = ((Boolean) entry.getValue()).booleanValue();
+ if (isEnabled && !installedFilters.contains(id))
+ filtersToAdd.add(id);
+ else if (!isEnabled && installedFilters.contains(id))
+ filtersToRemove.add(id);
+ }
+
+ // Install the filters
+ FilterDescriptor[] filterDescs = FilterDescriptor
+ .getFilterDescriptors(fTargetId);
+ for (int i = 0; i < filterDescs.length; i++) {
+ String id = filterDescs[i].getId();
+ // just to double check - id should denote a custom filter anyway
+ boolean isCustomFilter = filterDescs[i].isCustomFilter();
+ if (isCustomFilter) {
+ if (filtersToAdd.contains(id)) {
+ ViewerFilter filter = filterDescs[i].createViewerFilter();
+ if (filter != null) {
+ fViewer.addFilter(filter);
+ fInstalledBuiltInFilters.put(id, filter);
+ }
+ }
+ if (filtersToRemove.contains(id)) {
+ fViewer
+ .removeFilter((ViewerFilter) fInstalledBuiltInFilters
+ .get(id));
+ fInstalledBuiltInFilters.remove(id);
+ }
+ }
+ }
+ }
+
+ private String[] getUserAndBuiltInPatterns() {
+ List patterns = new ArrayList(fUserDefinedPatterns.length);
+ if (areUserDefinedPatternsEnabled())
+ patterns.addAll(Arrays.asList(fUserDefinedPatterns));
+ FilterDescriptor[] filterDescs = FilterDescriptor
+ .getFilterDescriptors(fTargetId);
+ for (int i = 0; i < filterDescs.length; i++) {
+ String id = filterDescs[i].getId();
+ boolean isPatternFilter = filterDescs[i].isPatternFilter();
+ Object isEnabled = fEnabledFilterIds.get(id);
+ if (isEnabled != null && isPatternFilter
+ && ((Boolean) isEnabled).booleanValue())
+ patterns.add(filterDescs[i].getPattern());
+ }
+ return (String[]) patterns.toArray(new String[patterns.size()]);
+ }
+
+ // ---------- view kind/defaults persistency ----------
+
+ private void initializeWithViewDefaults() {
+ // get default values for view
+ IPreferenceStore store = PHPeclipsePlugin.getDefault()
+ .getPreferenceStore();
+
+ // XXX: can be removed once bug 22533 is fixed.
+ if (!store.contains(getPreferenceKey("TAG_DUMMY_TO_TEST_EXISTENCE")))//$NON-NLS-1$
+ return;
+
+ // XXX: Uncomment once bug 22533 is fixed.
+ // if
+ // (!store.contains(getPreferenceKey(TAG_USER_DEFINED_PATTERNS_ENABLED)))
+ // return;
+
+ fUserDefinedPatternsEnabled = store
+ .getBoolean(getPreferenceKey(TAG_USER_DEFINED_PATTERNS_ENABLED));
+ setUserDefinedPatterns(CustomFiltersDialog.convertFromString(store
+ .getString(getPreferenceKey(TAG_USER_DEFINED_PATTERNS)),
+ SEPARATOR));
+
+ Iterator iter = fEnabledFilterIds.keySet().iterator();
+ while (iter.hasNext()) {
+ String id = (String) iter.next();
+ Boolean isEnabled = new Boolean(store.getBoolean(id));
+ fEnabledFilterIds.put(id, isEnabled);
+ }
+
+ fLRUFilterIdsStack.clear();
+ String lruFilterIds = store.getString(TAG_LRU_FILTERS);
+ StringTokenizer tokenizer = new StringTokenizer(lruFilterIds, SEPARATOR);
+ while (tokenizer.hasMoreTokens()) {
+ String id = tokenizer.nextToken();
+ if (fFilterDescriptorMap.containsKey(id)
+ && !fLRUFilterIdsStack.contains(id))
+ fLRUFilterIdsStack.push(id);
+ }
+ }
+
+ private void storeViewDefaults() {
+ // get default values for view
+ IPreferenceStore store = PHPeclipsePlugin.getDefault()
+ .getPreferenceStore();
+
+ // XXX: can be removed once bug 22533 is fixed.
+ store
+ .setValue(
+ getPreferenceKey("TAG_DUMMY_TO_TEST_EXISTENCE"), "storedViewPreferences");//$NON-NLS-1$//$NON-NLS-2$
+
+ store.setValue(getPreferenceKey(TAG_USER_DEFINED_PATTERNS_ENABLED),
+ fUserDefinedPatternsEnabled);
+ store.setValue(getPreferenceKey(TAG_USER_DEFINED_PATTERNS),
+ CustomFiltersDialog.convertToString(fUserDefinedPatterns,
+ SEPARATOR));
+
+ Iterator iter = fEnabledFilterIds.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry entry = (Map.Entry) iter.next();
+ String id = (String) entry.getKey();
+ boolean isEnabled = ((Boolean) entry.getValue()).booleanValue();
+ store.setValue(id, isEnabled);
+ }
+
+ StringBuffer buf = new StringBuffer(fLRUFilterIdsStack.size() * 20);
+ iter = fLRUFilterIdsStack.iterator();
+ while (iter.hasNext()) {
+ buf.append((String) iter.next());
+ buf.append(SEPARATOR);
+ }
+ store.setValue(TAG_LRU_FILTERS, buf.toString());
+ }
+
+ private String getPreferenceKey(String tag) {
+ return "CustomFiltersActionGroup." + fTargetId + '.' + tag; //$NON-NLS-1$
+ }
+
+ // ---------- view instance persistency ----------
+
+ /**
+ * Saves the state of the custom filters in a memento.
+ *
+ * @param memento
+ * the memento into which the state is saved
+ */
+ public void saveState(IMemento memento) {
+ IMemento customFilters = memento.createChild(TAG_CUSTOM_FILTERS);
+ customFilters.putString(TAG_USER_DEFINED_PATTERNS_ENABLED, new Boolean(
+ fUserDefinedPatternsEnabled).toString());
+ saveUserDefinedPatterns(customFilters);
+ saveXmlDefinedFilters(customFilters);
+ saveLRUFilters(customFilters);
+ }
+
+ private void saveXmlDefinedFilters(IMemento memento) {
+ if (fEnabledFilterIds != null && !fEnabledFilterIds.isEmpty()) {
+ IMemento xmlDefinedFilters = memento
+ .createChild(TAG_XML_DEFINED_FILTERS);
+ Iterator iter = fEnabledFilterIds.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry entry = (Map.Entry) iter.next();
+ String id = (String) entry.getKey();
+ Boolean isEnabled = (Boolean) entry.getValue();
+ IMemento child = xmlDefinedFilters.createChild(TAG_CHILD);
+ child.putString(TAG_FILTER_ID, id);
+ child.putString(TAG_IS_ENABLED, isEnabled.toString());
+ }
+ }
+ }
+
+ /**
+ * Stores the last recently used filter Ids into the given memento
+ *
+ * @param memento
+ * the memento into which to store the LRU filter Ids
+ * @since 3.0
+ */
+ private void saveLRUFilters(IMemento memento) {
+ if (fLRUFilterIdsStack != null && !fLRUFilterIdsStack.isEmpty()) {
+ IMemento lruFilters = memento.createChild(TAG_LRU_FILTERS);
+ Iterator iter = fLRUFilterIdsStack.iterator();
+ while (iter.hasNext()) {
+ String id = (String) iter.next();
+ IMemento child = lruFilters.createChild(TAG_CHILD);
+ child.putString(TAG_FILTER_ID, id);
+ }
+ }
+ }
+
+ private void saveUserDefinedPatterns(IMemento memento) {
+ if (fUserDefinedPatterns != null && fUserDefinedPatterns.length > 0) {
+ IMemento userDefinedPatterns = memento
+ .createChild(TAG_USER_DEFINED_PATTERNS);
+ for (int i = 0; i < fUserDefinedPatterns.length; i++) {
+ IMemento child = userDefinedPatterns.createChild(TAG_CHILD);
+ child.putString(TAG_PATTERN, fUserDefinedPatterns[i]);
+ }
+ }
+ }
+
+ /**
+ * Restores the state of the filter actions from a memento.
+ * + * Note: This method does not refresh the viewer. + *
+ * + * @param memento + * the memento from which the state is restored + */ + public void restoreState(IMemento memento) { + if (memento == null) + return; + IMemento customFilters = memento.getChild(TAG_CUSTOM_FILTERS); + if (customFilters == null) + return; + String userDefinedPatternsEnabled = customFilters + .getString(TAG_USER_DEFINED_PATTERNS_ENABLED); + if (userDefinedPatternsEnabled == null) + return; + + fUserDefinedPatternsEnabled = Boolean.valueOf( + userDefinedPatternsEnabled).booleanValue(); + restoreUserDefinedPatterns(customFilters); + restoreXmlDefinedFilters(customFilters); + restoreLRUFilters(customFilters); + + updateViewerFilters(false); + } + + private void restoreUserDefinedPatterns(IMemento memento) { + IMemento userDefinedPatterns = memento + .getChild(TAG_USER_DEFINED_PATTERNS); + if (userDefinedPatterns != null) { + IMemento children[] = userDefinedPatterns.getChildren(TAG_CHILD); + String[] patterns = new String[children.length]; + for (int i = 0; i < children.length; i++) + patterns[i] = children[i].getString(TAG_PATTERN); + + setUserDefinedPatterns(patterns); + } else + setUserDefinedPatterns(new String[0]); + } + + private void restoreXmlDefinedFilters(IMemento memento) { + IMemento xmlDefinedFilters = memento.getChild(TAG_XML_DEFINED_FILTERS); + if (xmlDefinedFilters != null) { + IMemento[] children = xmlDefinedFilters.getChildren(TAG_CHILD); + for (int i = 0; i < children.length; i++) { + String id = children[i].getString(TAG_FILTER_ID); + Boolean isEnabled = new Boolean(children[i] + .getString(TAG_IS_ENABLED)); + fEnabledFilterIds.put(id, isEnabled); + } + } + } + + private void restoreLRUFilters(IMemento memento) { + IMemento lruFilters = memento.getChild(TAG_LRU_FILTERS); + fLRUFilterIdsStack.clear(); + if (lruFilters != null) { + IMemento[] children = lruFilters.getChildren(TAG_CHILD); + for (int i = 0; i < children.length; i++) { + String id = children[i].getString(TAG_FILTER_ID); + if (fFilterDescriptorMap.containsKey(id) + && !fLRUFilterIdsStack.contains(id)) + fLRUFilterIdsStack.push(id); + } + } + } + + private void cleanUpPatternDuplicates() { + if (!areUserDefinedPatternsEnabled()) + return; + List userDefinedPatterns = new ArrayList(Arrays + .asList(fUserDefinedPatterns)); + FilterDescriptor[] filters = FilterDescriptor + .getFilterDescriptors(fTargetId); + + for (int i = 0; i < filters.length; i++) { + if (filters[i].isPatternFilter()) { + String pattern = filters[i].getPattern(); + if (userDefinedPatterns.contains(pattern)) { + fEnabledFilterIds.put(filters[i].getId(), Boolean.TRUE); + boolean hasMore = true; + while (hasMore) + hasMore = userDefinedPatterns.remove(pattern); + } + } + } + fUserDefinedPatterns = (String[]) userDefinedPatterns + .toArray(new String[userDefinedPatterns.size()]); + setUserDefinedPatternsEnabled(fUserDefinedPatternsEnabled + && fUserDefinedPatterns.length > 0); + } + + // ---------- dialog related code ---------- + + private void openDialog() { + CustomFiltersDialog dialog = new CustomFiltersDialog(fViewer + .getControl().getShell(), fTargetId, + areUserDefinedPatternsEnabled(), fUserDefinedPatterns, + getEnabledFilterIds()); + + if (dialog.open() == Window.OK) { + setEnabledFilterIds(dialog.getEnabledFilterIds()); + setUserDefinedPatternsEnabled(dialog + .areUserDefinedPatternsEnabled()); + setUserDefinedPatterns(dialog.getUserDefinedPatterns()); + setRecentlyChangedFilters(dialog.getFilterDescriptorChangeHistory()); + + storeViewDefaults(); + + updateViewerFilters(true); + } + } +}