| /******************************************************************************* |
| * Copyright (c) 2008, 2010 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.equinox.internal.p2.ui.actions; |
| |
| import org.eclipse.equinox.p2.query.QueryUtil; |
| |
| import org.eclipse.equinox.internal.p2.ui.ProvUI; |
| import org.eclipse.equinox.internal.p2.ui.model.IIUElement; |
| import org.eclipse.equinox.internal.p2.ui.model.InstalledIUElement; |
| import org.eclipse.equinox.p2.engine.IProfile; |
| import org.eclipse.equinox.p2.metadata.IInstallableUnit; |
| import org.eclipse.equinox.p2.ui.ProvisioningUI; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| |
| /** |
| * |
| * Abstract class that implements the enablement rules for actions that |
| * affect IU's already in a profile. The action only enables when all of the |
| * IU's involved are top level IU's from the same profile. |
| * |
| * @since 3.5 |
| * |
| */ |
| public abstract class ExistingIUInProfileAction extends ProfileModificationAction { |
| |
| public ExistingIUInProfileAction(ProvisioningUI ui, String label, ISelectionProvider selectionProvider, String profileId) { |
| super(ui, label, selectionProvider, profileId); |
| } |
| |
| protected boolean isEnabledFor(Object[] selectionArray) { |
| Object parent = null; |
| // We don't want to prompt for a profile during validation, |
| // so we only consider the profile id that was set, or the profile |
| // referred to by the element itself.. |
| IProfile profile = getProfile(); |
| if (selectionArray.length > 0) { |
| for (int i = 0; i < selectionArray.length; i++) { |
| if (selectionArray[i] instanceof InstalledIUElement) { |
| InstalledIUElement element = (InstalledIUElement) selectionArray[i]; |
| // If the parents are different, then they are either from |
| // different profiles or are nested in different parts of the tree. |
| // Either way, this makes the selection invalid. |
| if (parent == null) { |
| parent = element.getParent(element); |
| } else if (parent != element.getParent(element)) { |
| return false; |
| } |
| // Now consider the validity of the element on its own |
| if (!isSelectable(element.getIU(), profile)) |
| return false; |
| } else { |
| IInstallableUnit iu = ProvUI.getAdapter(selectionArray[i], IInstallableUnit.class); |
| if (iu == null || !isSelectable(iu)) |
| return false; |
| } |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| protected boolean isSelectable(IIUElement element) { |
| if (!super.isSelectable(element)) |
| return false; |
| Object parent = element.getParent(element); |
| if (parent != null) { |
| IProfile profile = ProvUI.getAdapter(parent, IProfile.class); |
| if (profile != null) |
| return isSelectable(element.getIU(), profile); |
| } |
| return false; |
| } |
| |
| protected boolean isSelectable(IInstallableUnit iu) { |
| if (!super.isSelectable(iu)) |
| return false; |
| return isSelectable(iu, getProfile()); |
| } |
| |
| private boolean isSelectable(IInstallableUnit iu, IProfile profile) { |
| int lock = getLock(profile, iu); |
| if ((lock & getLockConstant()) == getLockConstant()) |
| return false; |
| return !profile.query(QueryUtil.createPipeQuery(QueryUtil.createIUQuery(iu), getPolicy().getVisibleInstalledIUQuery()), null).isEmpty(); |
| } |
| |
| protected abstract int getLockConstant(); |
| } |