[WebKit] Allow enabling WebKit Browser search per Browser widget

This change disables the search added for #2222 per default, allowing
client code to enable the search with the SWT.SEARCH style.

Fixes: #2267

Author: trancexpress

bundles/org.eclipse.swt/Eclipse SWT Browser/gtk/org/eclipse/swt/browser/BrowserFactory.java

@@ -13,13 +13,17 @@
  *******************************************************************************/
 package org.eclipse.swt.browser;
 
+import org.eclipse.swt.*;
+
 class BrowserFactory {
 
 WebBrowser createWebBrowser (int style) {
 	boolean webkitInstalled = WebKit.IsInstalled ();
 	if (!webkitInstalled) return null;
 
-	return new WebKit ();
+	WebKit webKit = new WebKit ();
+	webKit.enableSearch = (style & SWT.SEARCH) == SWT.SEARCH;
+	return webKit;
 }
 
 }

bundles/org.eclipse.swt/Eclipse SWT WebKit/gtk/org/eclipse/swt/browser/WebKit.java

@@ -101,6 +101,8 @@ class WebKit extends WebBrowser {
 	private Point searchShellLocation;
 	private Shell searchShell;
 	private String searchText;
+	boolean enableSearch;
+
 
 	boolean firstLoad = true;
 	static boolean FirstCreate = true;
@@ -795,7 +797,7 @@ public void create (Composite parent, int style) {
 				break;
 			}
 			case SWT.KeyDown: {
-				if (!disableBrowserSearch && event.keyCode == 'f' && (event.stateMask & SWT.CTRL) == SWT.CTRL) {
+				if (!disableBrowserSearch && enableSearch && event.keyCode == 'f' && (event.stateMask & SWT.CTRL) == SWT.CTRL) {
 					openSearchDialog();
 				}
 				break;

bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/SWT.java

@@ -1558,6 +1558,7 @@ public class SWT {
 	 * <p><b>Used By:</b></p>
 	 * <ul>
 	 * <li><code>Text</code></li>
+	 * <li><code>Browser</code> (WebKit and GTK only)</li>
 	 * </ul>
 	 *
 	 * @since 3.3