/*******************************************************************************
* Copyright (c) 2007 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.ui.internal.keys;
import org.eclipse.core.commands.Category;
import org.eclipse.core.commands.ParameterizedCommand;
import org.eclipse.core.commands.common.NotDefinedException;
import org.eclipse.jface.bindings.Binding;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.ui.dialogs.PatternFilter;
class CategoryPatternFilter extends PatternFilter {
private boolean filterCategories;
final Category uncategorized;
public CategoryPatternFilter(boolean filterCategories, Category c) {
uncategorized = c;
filterCategories(filterCategories);
}
public void filterCategories(boolean b) {
filterCategories = b;
if (filterCategories) {
setPattern("org.eclipse.ui.keys.optimization.false"); //$NON-NLS-1$
} else {
setPattern("org.eclipse.ui.keys.optimization.true"); //$NON-NLS-1$
}
}
public boolean isFilteringCategories() {
return filterCategories;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.dialogs.PatternFilter#isLeafMatch(org.eclipse.jface.viewers.Viewer,
* java.lang.Object)
*/
protected boolean isLeafMatch(Viewer viewer, Object element) {
if (filterCategories) {
final ParameterizedCommand cmd = getCommand(element);
try {
if (cmd != null
&& cmd.getCommand().getCategory() == uncategorized) {
return false;
}
} catch (NotDefinedException e) {
return false;
}
}
return super.isLeafMatch(viewer, element);
}
private ParameterizedCommand getCommand(Object element) {
if (element instanceof ParameterizedCommand) {
return (ParameterizedCommand) element;
}
if (element instanceof Binding) {
return ((Binding) element).getParameterizedCommand();
}
return null;
}
}