Changeset 5533

Timestamp:

07/09/08 16:41:38 (3 months ago)

Author:

will

Message:

Auto-complete on the search box, to help user pick a term that is already in the Lucene index.

Location:

branches/ProtocolEditor/src/search

Files:

• IndexTermFinder.java (added)
• SearchController.java (modified) (6 diffs)

branches/ProtocolEditor/src/search/SearchController.java

@@ -2 +2 @@
 
 import java.awt.BorderLayout;
+import java.awt.Rectangle;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -13 +16 @@
 import javax.swing.Icon;
 import javax.swing.JButton;
+import javax.swing.JDialog;
 import javax.swing.JPanel;
 import javax.swing.JTextField;
+import javax.swing.event.DocumentEvent;
+import javax.swing.event.DocumentListener;
 import javax.swing.text.JTextComponent;
 
+import org.openmicroscopy.shoola.util.ui.HistoryDialog;
 import org.xml.sax.SAXParseException;
 
@@ -65 +72 @@
 public class SearchController 
         extends AbstractComponent
-        implements ActionListener {
+        implements ActionListener,
+        DocumentListener, PropertyChangeListener {
         
         /**
@@ -115 +123 @@
          */
         boolean displayControllerPanel = true;
+        
+        /**
+         * A popup to display the terms from the lucene index that match what the
+         * user is typing into the searchTermSource, so as to provide an
+         * Auto-Complete functionality. 
+         */
+        HistoryDialog popup;
         
         /**
@@ -133 +148 @@
         public void setSearchTermSource(JTextComponent searchTermSource) {
                 this.searchTermSource = searchTermSource;
+                searchTermSource.getDocument().addDocumentListener(this);
         }
         
@@ -312 +328 @@
                 else return null;
         }
+        
+        public void autoComplete() {
+                Rectangle rect = searchTermSource.getBounds();
+                String text = searchTermSource.getText();
+                if (text.length() < 2) return;
+                
+                String[] matchingTerms = IndexTermFinder.getMatchingTerms(text);
+                
+                popup = new HistoryDialog(matchingTerms, rect.width);
+                popup.addPropertyChangeListener(
+                                HistoryDialog.SELECTION_PROPERTY, this);
+                
+                popup.show(searchTermSource, 0, rect.height);
+                
+                searchTermSource.requestFocusInWindow();
+        }
+
+        public void insertUpdate(DocumentEvent e) {
+                autoComplete();
+        }
+        
+        public void changedUpdate(DocumentEvent e) {
+                autoComplete();
+        }
+        public void removeUpdate(DocumentEvent e) {
+                autoComplete();
+        }
+
+        public void propertyChange(PropertyChangeEvent evt) {
+                if (HistoryDialog.SELECTION_PROPERTY.equals(evt.getPropertyName())) {
+                        Object item = evt.getNewValue();
+                        searchTermSource.setText(item.toString());
+                        
+                        popup.setVisible(false);
+                        
+                }
+        }
 
 }