| /******************************************************************************* |
| * Copyright (c) 2016 Red Hat Inc., and others |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Mickael Istria (Red Hat Inc.) - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.ui.internal.wizards.datatransfer; |
| |
| import org.eclipse.core.runtime.IProgressMonitorWithBlocking; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.jface.wizard.ProgressMonitorPart; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * A progress monitor that delegates report to another one wrapping invocations |
| * of delegate methods in Dislay.asyncExec() and ensuring focus is preserved |
| * during the beginTask operation. |
| * |
| * @since 3.12 |
| */ |
| class DelegateProgressMonitorInUIThreadAndPreservingFocus implements IProgressMonitorWithBlocking { |
| private ProgressMonitorPart delegate; |
| private Display display; |
| |
| /** |
| * @param delegate |
| */ |
| public DelegateProgressMonitorInUIThreadAndPreservingFocus(ProgressMonitorPart delegate) { |
| this.delegate = delegate; |
| this.display = delegate.getDisplay(); |
| } |
| |
| private void inUIThread(Runnable r) { |
| if (display == Display.getCurrent()) { |
| r.run(); |
| } else { |
| PlatformUI.getWorkbench().getDisplay().asyncExec(r); |
| } |
| } |
| |
| @Override |
| public void worked(int work) { |
| inUIThread(() -> delegate.worked(work)); |
| } |
| |
| @Override |
| public void subTask(String name) { |
| inUIThread(() -> delegate.subTask(name)); |
| } |
| |
| @Override |
| public void setTaskName(String name) { |
| inUIThread(() -> delegate.setTaskName(name)); |
| } |
| |
| @Override |
| public void setCanceled(boolean value) { |
| inUIThread(() -> delegate.setCanceled(value)); |
| } |
| |
| @Override |
| public boolean isCanceled() { |
| return delegate.isCanceled(); |
| } |
| |
| @Override |
| public void internalWorked(double work) { |
| inUIThread(() -> delegate.internalWorked(work)); |
| } |
| |
| @Override |
| public void done() { |
| inUIThread(() -> delegate.done()); |
| } |
| |
| @Override |
| public void beginTask(String name, int totalWork) { |
| inUIThread(() -> { |
| Point initialSelection = null; |
| Control focusControl = Display.getCurrent().getFocusControl(); |
| if (focusControl != null && focusControl instanceof Combo) { |
| initialSelection = ((Combo) focusControl).getSelection(); |
| } |
| delegate.beginTask(name, totalWork); |
| // this is necessary because ProgressMonitorPart |
| // sets focus on Stop button |
| if (focusControl != null) { |
| focusControl.setFocus(); |
| if (focusControl instanceof Combo && initialSelection != null) { |
| ((Combo) focusControl).setSelection(initialSelection); |
| } |
| } |
| }); |
| } |
| |
| @Override |
| public void setBlocked(IStatus reason) { |
| inUIThread(() -> delegate.setBlocked(reason)); |
| } |
| |
| @Override |
| public void clearBlocked() { |
| inUIThread(() -> delegate.clearBlocked()); |
| } |
| } |