diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/listeners/SWTStateChangeListenerWrapper.java')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/listeners/SWTStateChangeListenerWrapper.java | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/listeners/SWTStateChangeListenerWrapper.java b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/listeners/SWTStateChangeListenerWrapper.java deleted file mode 100644 index 05c4b1ccca..0000000000 --- a/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/listeners/SWTStateChangeListenerWrapper.java +++ /dev/null @@ -1,72 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2008 Oracle. 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: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.ui.internal.listeners; - -import org.eclipse.jpt.utility.model.event.StateChangeEvent; -import org.eclipse.jpt.utility.model.listener.StateChangeListener; -import org.eclipse.swt.widgets.Display; - -/** - * Wrap another state change listener and forward events to it on the SWT - * UI thread. - */ -public class SWTStateChangeListenerWrapper - implements StateChangeListener -{ - private final StateChangeListener listener; - - public SWTStateChangeListenerWrapper(StateChangeListener listener) { - super(); - if (listener == null) { - throw new NullPointerException(); - } - this.listener = listener; - } - - public void stateChanged(StateChangeEvent event) { - if (this.isExecutingUIThread()) { - this.stateChanged_(event); - } else { - this.executeOnUIThread(this.buildRunnable(event)); - } - } - - private Runnable buildRunnable(final StateChangeEvent event) { - return new Runnable() { - public void run() { - SWTStateChangeListenerWrapper.this.stateChanged_(event); - } - }; - } - - private boolean isExecutingUIThread() { - return Display.getCurrent() != null; - } - - /** - * Display#asyncExec(Runnable) seems to work OK; - * but using #syncExec(Runnable) can somtimes make things - * more predictable when debugging, at the risk of deadlocks. - */ - private void executeOnUIThread(Runnable r) { - Display.getDefault().asyncExec(r); -// Display.getDefault().syncExec(r); - } - - void stateChanged_(StateChangeEvent event) { - this.listener.stateChanged(event); - } - - @Override - public String toString() { - return "SWT(" + this.listener.toString() + ')'; //$NON-NLS-1$ - } - -} |