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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.java72
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 4a941336c3..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() + ")";
- }
-
-}

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