diff options
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.java | 262 |
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(); - } -} |