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/*******************************************************************************
* Copyright (c) 2008, 2009 Wind River Systems 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.internal.ui.viewmodel.actions;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.cdt.dsf.debug.ui.viewmodel.actions.VMHandlerUtils;
import org.eclipse.cdt.dsf.ui.viewmodel.IVMProvider;
import org.eclipse.cdt.dsf.ui.viewmodel.update.ICachingVMProvider;
import org.eclipse.cdt.dsf.ui.viewmodel.update.IVMUpdatePolicy;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.ContributionItem;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.ui.actions.CompoundContributionItem;
import org.eclipse.ui.menus.IWorkbenchContribution;
import org.eclipse.ui.services.IServiceLocator;
/**
* Dynamic menu contribution that shows available update policies
* in the current view.
*
* @since 1.1
*/
public class UpdatePoliciesContribution extends CompoundContributionItem implements IWorkbenchContribution {
private class SelectUpdatePolicyAction extends Action {
private final ICachingVMProvider fProvider;
private final IVMUpdatePolicy fPolicy;
SelectUpdatePolicyAction(ICachingVMProvider provider, IVMUpdatePolicy policy) {
super(policy.getName(), AS_RADIO_BUTTON);
fProvider = provider;
fPolicy = policy;
}
@Override
public void run() {
if (isChecked()) {
fProvider.setActiveUpdatePolicy(fPolicy);
}
}
}
private IServiceLocator fServiceLocator;
private static IContributionItem[] NO_UPDATE_POLICIES_CONTRIBUTION_ITEMS = new IContributionItem[] {
new ContributionItem() {
@Override
public void fill(Menu menu, int index) {
MenuItem item = new MenuItem(menu, SWT.NONE);
item.setEnabled(false);
item.setText(MessagesForVMActions.UpdatePoliciesContribution_EmptyPoliciesList_label);
}
@Override
public boolean isEnabled() {
return false;
}
}
};
@Override
protected IContributionItem[] getContributionItems() {
IVMProvider provider = VMHandlerUtils.getActiveVMProvider(fServiceLocator);
// If no part or selection, disable all.
if (provider == null || !(provider instanceof ICachingVMProvider)) {
return NO_UPDATE_POLICIES_CONTRIBUTION_ITEMS;
}
ICachingVMProvider cachingProvider = (ICachingVMProvider)provider;
IVMUpdatePolicy[] policies = cachingProvider.getAvailableUpdatePolicies();
IVMUpdatePolicy activePolicy = cachingProvider.getActiveUpdatePolicy();
List<Action> actions = new ArrayList<Action>(policies.length);
for (IVMUpdatePolicy policy : policies) {
Action action = new SelectUpdatePolicyAction(cachingProvider, policy);
if (policy.getID().equals(activePolicy.getID())) {
action.setChecked(true);
}
actions.add(action);
}
if ( actions.isEmpty() ) {
return NO_UPDATE_POLICIES_CONTRIBUTION_ITEMS;
}
IContributionItem[] items = new IContributionItem[actions.size()];
for (int i = 0; i < actions.size(); i++) {
items[i] = new ActionContributionItem(actions.get(i));
}
return items;
}
@Override
public void initialize(IServiceLocator serviceLocator) {
fServiceLocator = serviceLocator;
}
}
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