Bug 58985 [Dialogs] WizardDialog.getButton( IDialogConstants.CANCLE_ID ) always returns null
Here's a test case for this bug. Watch the stdout of the program. --WizardDialogBug import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.wizard.IWizard; import org.eclipse.jface.wizard.Wizard; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class WizardDialogBug { public static void main(String[] args) { WizardDialogBug wizardDialogBug = new WizardDialogBug(); wizardDialogBug.run(); } public void run() { Display display = new Display(); Shell shell = new Shell( display, SWT.NONE ); TestWizard wizard = new TestWizard(); TestWizardDialog dialog = new TestWizardDialog( shell, wizard ); dialog.setBlockOnOpen( false ); dialog.open(); while( !shell.isDisposed() ) if( !display.readAndDispatch() ) display.sleep(); display.dispose(); } // test WizardPage public class TestWizardPage extends WizardPage { public TestWizardPage() { super( "TestWizardPage" ); } public void createControl(Composite parent) { Button b = new Button( parent, SWT.PUSH ); b.setText( "Button" ); setControl( b ); } } // test Wizard public class TestWizard extends Wizard { public TestWizard() { super(); setWindowTitle( "TestWizard" ); } public void addPages() { addPage( new TestWizardPage() ); } public boolean performFinish() { return false; } } // test WizardDialog public class TestWizardDialog extends WizardDialog { public TestWizardDialog( Shell shell, IWizard wizard ) { super( shell, wizard ); } public int open() { int rc = super.open(); // by now, all controls should have been created; System.out.println( getButton( IDialogConstants.FINISH_ID ) ); System.out.println( getButton( IDialogConstants.CANCEL_ID ) ); return rc; } } }
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/WizardDialog.java
result.y = hHint;
			return result;
		}
		/**
		 * Returns the client area for the given composite according to this layout.
		 *
		 * @param c the composite
		 * @return the client area rectangle
		 */
		public Rectangle getClientArea(Composite c) {
			Rectangle rect = c.getClientArea();
			rect.x = rect.x + marginWidth;
			rect.y = rect.y + marginHeight;
			rect.width = rect.width - 2 * marginWidth;
			rect.height = rect.height - 2 * marginHeight;
			return rect;
		}
		/* (non-Javadoc)
		 * Method declared on Layout.
		 */
		public void layout(Composite composite, boolean force) {
			Rectangle rect = getClientArea(composite);
			Control[] children = composite.getChildren();
			for (int i = 0; i < children.length; i++) {
				children[i].setBounds(rect);
			}
		}
		/**
		 * Lays outs the page according to this layout.
		 *