SwingSearchBar: defer need for the SearchService

We only need it once we bring up the search pane.

This change enables SwingSearchBar to be created
and used earlier in the context creation lifecycle.

Author: ctrueden

src/main/java/org/scijava/ui/swing/search/SwingSearchBar.java

@@ -115,9 +115,6 @@ public class SwingSearchBar extends JTextField {
 	private final DocumentListener documentListener;
 	private final JToolBar buttons;
 
-	@Parameter
-	private SearchService searchService;
-
 	@Parameter
 	private ThreadService threadService;
 
@@ -311,7 +308,7 @@ private void search() {
 				// NB: Defer creating a new search dialog until something is typed.
 				return;
 			}
-			searchPanel = new SwingSearchPanel(); // Spawns the SearchOperation!
+			searchPanel = new SwingSearchPanel(threadService.context());
 			showPanel(searchPanel);
 		}
 		searchPanel.search(getText());
@@ -350,7 +347,11 @@ private class SwingSearchPanel extends JPanel {
 		private final Map<Class<?>, JCheckBox> headerCheckboxes;
 		private final JList<SearchResult> resultsList;
 
-		public SwingSearchPanel() {
+		@Parameter
+		private SearchService searchService;
+
+		public SwingSearchPanel(final Context context) {
+			context.inject(this);
 			setLayout(new BorderLayout());
 			setPreferredSize(new Dimension(800, 300));
 			setBorder(BorderFactory.createEmptyBorder());