Skip to main content
summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/command/DelegatingCommandStack.java')
-rw-r--r--jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/command/DelegatingCommandStack.java262
1 files changed, 0 insertions, 262 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/command/DelegatingCommandStack.java b/jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/command/DelegatingCommandStack.java
deleted file mode 100644
index 1586f6fd0..000000000
--- a/jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/command/DelegatingCommandStack.java
+++ /dev/null
@@ -1,262 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2004, 2005 Sybase, 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:
- * Sybase, Inc. - initial API and implementation
- *******************************************************************************/
-
-package org.eclipse.jst.jsf.facesconfig.ui.pageflow.command;
-
-import java.util.EventObject;
-
-import org.eclipse.gef.commands.Command;
-import org.eclipse.gef.commands.CommandStack;
-import org.eclipse.gef.commands.CommandStackListener;
-import org.eclipse.gef.commands.UnexecutableCommand;
-
-/**
- * This is a delegating command stack, which delegates everything to another
- * CommandStack except event listners.
- * <p>
- * Event listeners registered to a <code>DelegatingCommandStack</code> will be
- * informed whenever the underlying <code>CommandStack</code> changes. They
- * will not be registered to the underlying <code>CommandStack</code> directly
- * but they will be informed about change events of them.
- *
- */
-public class DelegatingCommandStack extends CommandStack implements
- CommandStackListener {
- /** the empty object array */
- private static final Object[] EMPTY_OBJECT_ARRAY = new Object[] {};
-
- /** the current command stack */
- private CommandStack currentCommandStack = null;
-
- /**
- * Returns the current <code>CommandStack</code>.
- *
- * @return - the current <code>CommandStack</code>
- */
- public CommandStack getCurrentCommandStack() {
- return currentCommandStack;
- }
-
- /**
- * Sets the current <code>CommandStack</code>.
- *
- * @param stack -
- * the <code>CommandStack</code> to set
- */
- public void setCurrentCommandStack(CommandStack stack) {
- if (currentCommandStack == stack) {
- return;
- }
-
- // remove from old command stack
- if (null != currentCommandStack) {
- currentCommandStack.removeCommandStackListener(this);
- }
-
- // set new command stack
- currentCommandStack = stack;
-
- if (currentCommandStack != null) {
- // watch new command stack
- currentCommandStack.addCommandStackListener(this);
-
- // the command stack changed
- notifyListeners();
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#canRedo()
- */
- public boolean canRedo() {
- if (null == currentCommandStack) {
- return false;
- }
-
- return currentCommandStack.canRedo();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#canUndo()
- */
- public boolean canUndo() {
- if (null == currentCommandStack) {
- return false;
- }
-
- return currentCommandStack.canUndo();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#dispose()
- */
- public void dispose() {
- if (null != currentCommandStack) {
- currentCommandStack.dispose();
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#execute(org.eclipse.gef.commands.Command)
- */
- public void execute(Command command) {
- if (null != currentCommandStack) {
- currentCommandStack.execute(command);
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#flush()
- */
- public void flush() {
- if (null != currentCommandStack) {
- currentCommandStack.flush();
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#getCommands()
- */
- public Object[] getCommands() {
- if (null == currentCommandStack) {
- return EMPTY_OBJECT_ARRAY;
- }
-
- return currentCommandStack.getCommands();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#getRedoCommand()
- */
- public Command getRedoCommand() {
- if (null == currentCommandStack) {
- return UnexecutableCommand.INSTANCE;
- }
-
- return currentCommandStack.getRedoCommand();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#getUndoCommand()
- */
- public Command getUndoCommand() {
- if (null == currentCommandStack) {
- return UnexecutableCommand.INSTANCE;
- }
-
- return currentCommandStack.getUndoCommand();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#getUndoLimit()
- */
- public int getUndoLimit() {
- if (null == currentCommandStack) {
- return -1;
- }
-
- return currentCommandStack.getUndoLimit();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#isDirty()
- */
- public boolean isDirty() {
- if (null == currentCommandStack) {
- return false;
- }
-
- return currentCommandStack.isDirty();
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#markSaveLocation()
- */
- public void markSaveLocation() {
- if (null != currentCommandStack) {
- currentCommandStack.markSaveLocation();
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#redo()
- */
- public void redo() {
- if (null != currentCommandStack) {
- currentCommandStack.redo();
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#setUndoLimit(int)
- */
- public void setUndoLimit(int undoLimit) {
- if (null != currentCommandStack) {
- currentCommandStack.setUndoLimit(undoLimit);
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStack#undo()
- */
- public void undo() {
- if (null != currentCommandStack) {
- currentCommandStack.undo();
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see Object#toString()
- */
- public String toString() {
- return "DelegatingCommandStack(" + currentCommandStack + ")"; //$NON-NLS-1$ //$NON-NLS-2$
- }
-
- /*
- * (non-Javadoc)
- *
- * @see CommandStackListener#commandStackChanged(java.util.EventObject)
- */
- public void commandStackChanged(EventObject event) {
- notifyListeners();
- }
-}

Back to the top