org.argeo.suite.workbench.rap/src/org/argeo/suite/workbench/parts/QuickSearchView.java

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