/*******************************************************************************
* Copyright (c) 2007, 2015 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.views.markers;
import java.util.Collection;
import java.util.Iterator;
import org.eclipse.jface.action.ContributionItem;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.action.Separator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.ui.views.markers.internal.MarkerMessages;
/**
* FiltersContribution is the contribution for the filters menu.
*
* @since 3.4
*
*/
public class FiltersContribution extends MarkersContribution {
@Override
protected IContributionItem[] getContributionItems() {
final ExtendedMarkersView view = getView();
if (view == null) {
return new IContributionItem[0];
}
Collection<MarkerFieldFilterGroup> groups = view.getAllFilters();
if (groups.size() == 0) {
return new IContributionItem[0];
}
Iterator<MarkerFieldFilterGroup> groupsIterator = groups.iterator();
IContributionItem[] items = new IContributionItem[groups.size() + 2];
for (int i = 0; i < groups.size(); i++) {
final MarkerFieldFilterGroup group = groupsIterator.next();
items[i] = new ContributionItem() {
@Override
public void fill(Menu menu, int index) {
MenuItem item = new MenuItem(menu, SWT.CHECK);
item.setText(group.getName());
item.addListener(SWT.Selection, getMenuItemListener(group,
view));
if (view != null && view.isEnabled(group)) {
item.setSelection(true);
}
}
/**
* Return the menu item listener for selection of a filter.
*
* @param filter
* @param extendedView
* @return Listener
*/
private Listener getMenuItemListener(final MarkerFieldFilterGroup filter,
final ExtendedMarkersView extendedView) {
return event -> {
if (extendedView != null)
extendedView.toggleFilter(filter);
};
}
};
}
items[groups.size()] = new Separator();
items[groups.size() + 1] = getShowAllContribution();
return items;
}
/**
* Return the show all contribution.
*
* @return IContributionItem
*/
private IContributionItem getShowAllContribution() {
return new ContributionItem() {
@Override
public void fill(Menu menu, int index) {
MenuItem item = new MenuItem(menu, SWT.CHECK);
item.setText(MarkerMessages.MarkerFilter_showAllCommand_title);
item.setSelection(noFiltersSelected());
item.addListener(SWT.Selection, event -> {
ExtendedMarkersView view = getView();
if (view != null) {
view.disableAllFilters();
}
});
}
/**
* Return whether or not any filters are selected.
*
* @return boolean <code>true</code> if none of the current
* filters are selected.
*/
private boolean noFiltersSelected() {
ExtendedMarkersView view = getView();
if (view == null) {
return true;
}
Iterator<MarkerFieldFilterGroup> groupsIterator = view.getAllFilters().iterator();
while (groupsIterator.hasNext()) {
MarkerFieldFilterGroup group = groupsIterator.next();
if (group.isEnabled()) {
return false;
}
}
return true;
}
};
}
}