diff options
Diffstat (limited to 'plugins/org.eclipse.wst.common.frameworks.ui/wtp_ui/org/eclipse/wst/common/frameworks/internal/ui/ListenerList.java')
-rw-r--r-- | plugins/org.eclipse.wst.common.frameworks.ui/wtp_ui/org/eclipse/wst/common/frameworks/internal/ui/ListenerList.java | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/plugins/org.eclipse.wst.common.frameworks.ui/wtp_ui/org/eclipse/wst/common/frameworks/internal/ui/ListenerList.java b/plugins/org.eclipse.wst.common.frameworks.ui/wtp_ui/org/eclipse/wst/common/frameworks/internal/ui/ListenerList.java deleted file mode 100644 index db72ea550..000000000 --- a/plugins/org.eclipse.wst.common.frameworks.ui/wtp_ui/org/eclipse/wst/common/frameworks/internal/ui/ListenerList.java +++ /dev/null @@ -1,81 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2005 IBM Corporation 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: - * IBM Corporation - initial API and implementation - *******************************************************************************/ - -package org.eclipse.wst.common.frameworks.internal.ui; - -import java.awt.event.ActionListener; - -public class ListenerList { - private final static ActionListener[] NULL_ARRAY = new ActionListener[0]; - protected transient ActionListener[] listenerList = NULL_ARRAY; - - /** - * Add the listener as a listener of the specified type. - * - * @param t - * the type of the listener to be added - * @param l - * the listener to be added - */ - public synchronized void add(ActionListener l) { - if (l == null) - return; - if (listenerList == NULL_ARRAY) { - // if this is the first listener added, - // initialize the lists - listenerList = new ActionListener[]{l}; - } else { - // Otherwise copy the array and add the new listener - int i = listenerList.length; - ActionListener[] tmp = new ActionListener[i + 1]; - System.arraycopy(listenerList, 0, tmp, 0, i); - - tmp[i + 1] = l; - - listenerList = tmp; - } - } - - /** - * Return the total number of listeners for this listenerlist - */ - public int getListenerCount() { - return listenerList.length; - } - - public ActionListener[] getListenerList() { - return listenerList; - } - - public synchronized void remove(ActionListener l) { - if (l == null) - return; - int index = -1; - for (int i = listenerList.length - 1; i >= 0; i -= 1) { - if (listenerList[i].equals(l)) { - index = i; - break; - } - } - if (index != -1) { - ActionListener[] tmp = new ActionListener[listenerList.length - 1]; - // Copy the list up to index - System.arraycopy(listenerList, 0, tmp, 0, index); - // Copy from two past the index, up to - // the end of tmp (which is two elements - // shorter than the old list) - if (index < tmp.length) - System.arraycopy(listenerList, index + 1, tmp, index, tmp.length - index); - // set the listener array to the new array or null - listenerList = (tmp.length == 0) ? NULL_ARRAY : tmp; - } - } -}
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