e4/parts/QuickSearchView.java

   1 package org.argeo.suite.e4.parts;
   2
   3 import static org.argeo.eclipse.ui.EclipseUiUtils.notEmpty;
   4
   5 import javax.annotation.PostConstruct;
   6 import javax.annotation.PreDestroy;
   7 import javax.inject.Inject;
   8 import javax.jcr.NodeIterator;
   9 import javax.jcr.Repository;
  10 import javax.jcr.RepositoryException;
  11 import javax.jcr.Session;
  12 import javax.jcr.observation.Event;
  13 import javax.jcr.observation.EventIterator;
  14 import javax.jcr.observation.EventListener;
  15 import javax.jcr.query.Query;
  16 import javax.jcr.query.QueryResult;
  17
  18 import org.apache.commons.logging.Log;
  19 import org.apache.commons.logging.LogFactory;
  20 import org.argeo.activities.ActivitiesService;
  21 import org.argeo.cms.util.CmsUtils;
  22 import org.argeo.connect.ConnectException;
  23 import org.argeo.connect.ConnectTypes;
  24 import org.argeo.connect.resources.ResourcesService;
  25 import org.argeo.connect.ui.ConnectUiConstants;
  26 import org.argeo.connect.ui.Refreshable;
  27 import org.argeo.connect.ui.SystemWorkbenchService;
  28 import org.argeo.connect.ui.util.BasicNodeListContentProvider;
  29 import org.argeo.connect.ui.util.JcrViewerDClickListener;
  30 import org.argeo.connect.ui.widgets.DelayedText;
  31 import org.argeo.connect.util.ConnectJcrUtils;
  32 import org.argeo.connect.util.XPathUtils;
  33 import org.argeo.eclipse.ui.EclipseUiUtils;
  34 import org.argeo.jcr.JcrUtils;
  35 import org.argeo.people.PeopleService;
  36 import org.eclipse.e4.ui.di.Focus;
  37 import org.eclipse.jface.layout.TableColumnLayout;
  38 import org.eclipse.jface.viewers.ColumnWeightData;
  39 import org.eclipse.jface.viewers.ILabelProvider;
  40 import org.eclipse.jface.viewers.StructuredSelection;
  41 import org.eclipse.jface.viewers.TableViewer;
  42 import org.eclipse.swt.SWT;
  43 import org.eclipse.swt.events.KeyEvent;
  44 import org.eclipse.swt.events.KeyListener;
  45 import org.eclipse.swt.events.ModifyEvent;
  46 import org.eclipse.swt.events.ModifyListener;
  47 import org.eclipse.swt.layout.GridData;
  48 import org.eclipse.swt.layout.GridLayout;
  49 import org.eclipse.swt.widgets.Composite;
  50 import org.eclipse.swt.widgets.Table;
  51 import org.eclipse.swt.widgets.TableColumn;
  52 import org.eclipse.swt.widgets.Text;
  53
  54 /** A table with a quick search field. */
  55 public class QuickSearchView implements Refreshable {
  56         private final static Log log = LogFactory.getLog(QuickSearchView.class);
  57         // public static final String ID = AsUiPlugin.PLUGIN_ID + ".quickSearchView";
  58
  59         /* DEPENDENCY INJECTION */
  60         @Inject
  61         private Repository repository;
  62         @Inject
  63         private ResourcesService resourcesService;
  64         @Inject
  65         private ActivitiesService activitiesService;
  66         @Inject
  67         private PeopleService peopleService;
  68         @Inject
  69         private SystemWorkbenchService systemWorkbenchService;
  70
  71         // This page widgets
  72         private TableViewer entityViewer;
  73         private Text filterTxt;
  74
  75         private Session session;
  76
  77         // @Override
  78         // public void init(IViewSite site) throws PartInitException {
  79         // super.init(site);
  80         // }
  81
  82         @PostConstruct
  83         public void createPartControl(Composite parent) {
  84                 session = ConnectJcrUtils.login(repository);
  85                 // MainLayout
  86                 parent.setLayout(new GridLayout());
  87                 addFilterPanel(parent);
  88                 entityViewer = createListPart(parent, new EntitySingleColumnLabelProvider(resourcesService, activitiesService,
  89                                 peopleService, systemWorkbenchService));
  90                 refreshFilteredList();
  91
  92                 try {
  93                         session.getWorkspace().getObservationManager().addEventListener(new EventListener() {
  94
  95                                 @Override
  96                                 public void onEvent(EventIterator events) {
  97                                         parent.getDisplay().asyncExec(() -> refreshFilteredList());
  98                                 }
  99                         }, Event.PROPERTY_CHANGED | Event.NODE_ADDED | Event.NODE_REMOVED | Event.PROPERTY_ADDED, "/", true, null,
 100                                         new String[] { ConnectTypes.CONNECT_ENTITY }, true);
 101                 } catch (RepositoryException e) {
 102                         throw new ConnectException("Cannot add JCR observer", e);
 103                 }
 104
 105         }
 106
 107         private void addFilterPanel(Composite parent) {
 108                 // Use a delayed text: the query won't be done until the user stop
 109                 // typing for 800ms
 110                 int style = SWT.BORDER | SWT.SEARCH | SWT.ICON_CANCEL;
 111                 DelayedText delayedText = new DelayedText(parent, style, ConnectUiConstants.SEARCH_TEXT_DELAY);
 112                 filterTxt = delayedText.getText();
 113                 filterTxt.setLayoutData(EclipseUiUtils.fillWidth());
 114
 115                 // final ServerPushSession pushSession = new ServerPushSession();
 116                 delayedText.addDelayedModifyListener(null, new ModifyListener() {
 117                         private static final long serialVersionUID = 5003010530960334977L;
 118
 119                         public void modifyText(ModifyEvent event) {
 120                                 delayedText.getText().getDisplay().asyncExec(new Runnable() {
 121                                         @Override
 122                                         public void run() {
 123                                                 refreshFilteredList();
 124                                         }
 125                                 });
 126                                 // pushSession.stop();
 127                         }
 128                 });
 129
 130                 // Jump to the first item of the list using the down arrow
 131                 filterTxt.addKeyListener(new KeyListener() {
 132                         private static final long serialVersionUID = -4523394262771183968L;
 133
 134                         @Override
 135                         public void keyReleased(KeyEvent e) {
 136                         }
 137
 138                         @Override
 139                         public void keyPressed(KeyEvent e) {
 140                                 // boolean shiftPressed = (e.stateMask & SWT.SHIFT) != 0;
 141                                 // boolean altPressed = (e.stateMask & SWT.ALT) != 0;
 142                                 if (e.keyCode == SWT.ARROW_DOWN || e.keyCode == SWT.TAB) {
 143                                         Object first = entityViewer.getElementAt(0);
 144                                         if (first != null) {
 145                                                 entityViewer.getTable().setFocus();
 146                                                 entityViewer.setSelection(new StructuredSelection(first), true);
 147                                         }
 148                                         e.doit = false;
 149                                 }
 150                         }
 151                 });
 152         }
 153
 154         protected TableViewer createListPart(Composite parent, ILabelProvider labelProvider) {
 155                 parent.setLayout(new GridLayout());
 156
 157                 Composite tableComposite = new Composite(parent, SWT.NONE);
 158                 GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_VERTICAL
 159                                 | GridData.VERTICAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL);
 160                 tableComposite.setLayoutData(gd);
 161
 162                 TableViewer v = new TableViewer(tableComposite);
 163                 v.setLabelProvider(labelProvider);
 164
 165                 TableColumn singleColumn = new TableColumn(v.getTable(), SWT.V_SCROLL);
 166                 TableColumnLayout tableColumnLayout = new TableColumnLayout();
 167                 tableColumnLayout.setColumnData(singleColumn, new ColumnWeightData(85));
 168                 tableComposite.setLayout(tableColumnLayout);
 169
 170                 // Corresponding table & style
 171                 Table table = v.getTable();
 172                 table.setLinesVisible(true);
 173                 table.setHeaderVisible(false);
 174                 CmsUtils.markup(table);
 175                 CmsUtils.setItemHeight(table, 26);
 176
 177                 v.setContentProvider(new BasicNodeListContentProvider());
 178                 v.addDoubleClickListener(new JcrViewerDClickListener(systemWorkbenchService));
 179                 return v;
 180         }
 181
 182         @PreDestroy
 183         public void dispose() {
 184                 JcrUtils.logoutQuietly(session);
 185         }
 186
 187         @Focus
 188         public void setFocus() {
 189                 refreshFilteredList();
 190                 filterTxt.setFocus();
 191         }
 192
 193         @Override
 194         public void forceRefresh(Object object) {
 195                 refreshFilteredList();
 196         }
 197
 198         protected void refreshFilteredList() {
 199                 try {
 200                         String filter = filterTxt.getText();
 201                         // Prevents the query on the full repository
 202                         // if (isEmpty(filter)) {
 203                         // entityViewer.setInput(null);
 204                         // return;
 205                         // }
 206
 207                         // XPATH Query
 208                         String xpathQueryStr = "//element(*, " + ConnectTypes.CONNECT_ENTITY + ")";
 209                         String xpathFilter = XPathUtils.getFreeTextConstraint(filter);
 210                         if (notEmpty(xpathFilter))
 211                                 xpathQueryStr += "[" + xpathFilter + "]";
 212
 213                         // boolean doOrder = orderResultsBtn != null
 214                         // && !(orderResultsBtn.isDisposed())
 215                         // && orderResultsBtn.getSelection();
 216                         // if (doOrder) {
 217                         // xpathQueryStr += " order by jcr:title";
 218                         // }
 219
 220                         long begin = System.currentTimeMillis();
 221                         Query xpathQuery = XPathUtils.createQuery(session, xpathQueryStr);
 222
 223                         xpathQuery.setLimit(ConnectUiConstants.SEARCH_DEFAULT_LIMIT);
 224                         QueryResult result = xpathQuery.execute();
 225
 226                         NodeIterator nit = result.getNodes();
 227                         entityViewer.setInput(JcrUtils.nodeIteratorToList(nit));
 228                         if (log.isDebugEnabled()) {
 229                                 long end = System.currentTimeMillis();
 230                                 log.debug("Quick Search - Found: " + nit.getSize() + " in " + (end - begin)
 231                                                 + " ms by executing XPath query (" + xpathQueryStr + ").");
 232                         }
 233                 } catch (RepositoryException e) {
 234                         throw new ConnectException("Unable to list entities", e);
 235                 }
 236         }
 237
 238 //      public void setRepository(Repository repository) {
 239 //              this.repository = repository;
 240 //      }
 241 //
 242 //      public void setResourcesService(ResourcesService resourcesService) {
 243 //              this.resourcesService = resourcesService;
 244 //      }
 245 //
 246 //      public void setActivitiesService(ActivitiesService activitiesService) {
 247 //              this.activitiesService = activitiesService;
 248 //      }
 249 //
 250 //      public void setPeopleService(PeopleService peopleService) {
 251 //              this.peopleService = peopleService;
 252 //      }
 253 //
 254 //      public void setSystemWorkbenchService(SystemWorkbenchService systemWorkbenchService) {
 255 //              this.systemWorkbenchService = systemWorkbenchService;
 256 //      }
 257 }