Allow customization of the browser style in the "BrowserViewer"

class. #3035

Author: lak-proddev

bundles/org.eclipse.ui.browser/src/org/eclipse/ui/internal/browser/BrowserViewer.java

@@ -234,7 +234,7 @@ public void mouseDown(MouseEvent e) {
 		// we can use it in this environment
 		//if (WebBrowserUtil.canUseInternalWebBrowser())
 		try {
-			this.browser = new Browser(this, SWT.NONE);
+			this.browser = new Browser(this, getBrowserStyle());
 			this.browser.addLocationListener(LocationListener.changingAdapter(event -> {
 					URI uri = URI.create(event.location);
 					if (!(uri.getScheme().equals("http") || uri.getScheme().equals("https") //$NON-NLS-1$ //$NON-NLS-2$
@@ -275,6 +275,17 @@ public void mouseDown(MouseEvent e) {
 		addDisposeListener(this::dispose);
 	}
 
+	/**
+	 * Returns the style flags to be used for the Browser object. Subclasses can
+	 * override this method to provide custom styles for the Browser. By default,
+	 * this method returns the SWT.NONE style.
+	 *
+	 * @return an integer representing the style flags for the Browser object.
+	 */
+	protected int getBrowserStyle() {
+		return SWT.NONE; // Default style
+	}
+
 	/**
 	 * Returns the underlying SWT browser widget.
 	 *

tests/org.eclipse.ui.tests.browser/src/org/eclipse/ui/tests/browser/internal/InternalBrowserViewTestCase.java

@@ -13,13 +13,18 @@
  *******************************************************************************/
 package org.eclipse.ui.tests.browser.internal;
 
+import static org.junit.Assert.assertEquals;
+
 import java.net.URL;
 
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.browser.IWebBrowser;
 import org.eclipse.ui.browser.IWorkbenchBrowserSupport;
+import org.eclipse.ui.internal.browser.BrowserViewer;
 import org.eclipse.ui.internal.browser.WebBrowserPreference;
 import org.junit.Test;
 
@@ -68,4 +73,42 @@ public void run() {
 		Display display = Display.getCurrent();
 		while (!exit[0] && !shell.isDisposed()) if (!display.readAndDispatch()) display.sleep();
 	}
+
+	@Test
+	public void testDefaultBrowserStyle() {
+		class TestBrowserViewer extends BrowserViewer {
+			public TestBrowserViewer(Composite parent, int style) {
+				super(parent, style);
+			}
+
+			@Override
+			protected int getBrowserStyle() {
+				return super.getBrowserStyle();
+			}
+		}
+
+		TestBrowserViewer browserViewer = new TestBrowserViewer(shell, SWT.NONE);
+		int browserStyle = browserViewer.getBrowserStyle();
+		// Assert: Verify the returned style is SWT.NONE
+		assertEquals("The default browser style should be SWT.NONE", SWT.NONE, browserStyle);
+	}
+
+	@Test
+	public void testCustomBrowserStyle() {
+		class CustomBrowserViewer extends BrowserViewer {
+			public CustomBrowserViewer(Composite parent, int style) {
+				super(parent, style);
+			}
+
+			@Override
+			protected int getBrowserStyle() {
+				return SWT.EDGE; // Custom style
+			}
+		}
+
+		CustomBrowserViewer customBrowserViewer = new CustomBrowserViewer(shell, SWT.NONE);
+		int browserStyle = customBrowserViewer.getBrowserStyle();
+		// Assert: Verify the returned style is SWT.EDGE
+		assertEquals("The custom browser style should be SWT.EDGE", SWT.EDGE, browserStyle);
+	}
 }