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/*****************************************************************************
* Copyright (c) 2019 CEA LIST and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Nicolas FAUVERGUE (CEA LIST) nicolas.fauvergue@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.ui.architecture.validators;
import java.util.Arrays;
import org.eclipse.emf.common.command.CompoundCommand;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.jface.window.Window;
import org.eclipse.papyrus.infra.architecture.ArchitectureDescriptionUtils;
import org.eclipse.papyrus.infra.core.resource.ModelSet;
import org.eclipse.papyrus.infra.core.sasheditor.api.IPageAddValidator;
import org.eclipse.papyrus.infra.core.sashwindows.di.PageRef;
import org.eclipse.papyrus.infra.editor.welcome.Welcome;
import org.eclipse.papyrus.infra.ui.architecture.dialogs.ArchitectureContextDialog;
import org.eclipse.papyrus.infra.ui.architecture.messages.Messages;
import org.eclipse.papyrus.infra.viewpoints.policy.PolicyChecker;
import org.eclipse.papyrus.infra.viewpoints.policy.ViewPrototype;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
* The page add validator for architecture framework.
* In our case, this will check if the page to add is contained in the current viewpoint. If not, open a dialog to change the context/viewpoint.
*/
public class ArchitecturePageAddValidator implements IPageAddValidator {
/**
* Constructor.
*/
public ArchitecturePageAddValidator() {
// No nothing here
}
/**
* {@inheritDoc}
*
* @see org.eclipse.papyrus.infra.core.sasheditor.api.IPageAddValidator#isValid(java.lang.Object)
*/
@Override
public boolean isValid(final Object pageIdentifier) {
Object currentPageIdentifier = pageIdentifier instanceof PageRef ? ((PageRef) pageIdentifier).getPageIdentifier() : pageIdentifier;
// We need to check if this is an EObject and not the welcome (for the welcome page)
if (currentPageIdentifier instanceof EObject && !(currentPageIdentifier instanceof Welcome)) {
final EObject eObject = (EObject) currentPageIdentifier;
final ViewPrototype prototype = ViewPrototype.get(eObject);
// Get the checker
PolicyChecker checker = PolicyChecker.getFor(eObject);
if (null != checker && null != prototype) {
// Initialize with window.OK
while (!checker.isInViewpoint(prototype.getRepresentationKind())) {
// If the dialog result is not OK button value, return false
// Otherwise, if the window returns OK, loop on while and re-open the dialog (if viewpoint is not the correct one) or return true
if (Window.OK != changeArchitectureContextAndViewPoint(eObject)) {
return false;
} else {
// Reload the policy checker after switch context/viewpoints
checker = PolicyChecker.getFor(eObject);
}
}
return true;
}
}
return true;
}
/**
* This allows to change the context/viewpoint to manage the viewpoint for the selected diagram/table.
*
* @param eObject
* The diagram or table.
* @return The dialog result.
*/
private int changeArchitectureContextAndViewPoint(final EObject eObject) {
// Check the resource set as first
if (null == eObject.eResource() || !(eObject.eResource().getResourceSet() instanceof ModelSet)) {
// The initial result is the cancel fake
return Window.CANCEL;
}
// Get the current contexts and viewpoints
final ArchitectureDescriptionUtils helper = new ArchitectureDescriptionUtils((ModelSet) eObject.eResource().getResourceSet());
final String[] contextIds = new String[] { helper.getArchitectureContextId() };
final String[] viewpointIds = helper.getArchitectureViewpointIds().toArray(new String[0]);
// Prepare the dialog
final Shell shell = Display.getCurrent().getActiveShell();
final ArchitectureContextDialog dialog = new ArchitectureContextDialog(shell, Messages.ArchitecturePageAddValidator_diagleTitle,
Messages.ArchitecturePageAddValidator_dialogLabel);
dialog.setSelectedContexts(contextIds);
dialog.setSelectedViewpoints(viewpointIds);
dialog.create();
// Open the dialog
int result = dialog.open();
if (Window.OK == result) {
// In this case, activate the context and viewpoints
final TransactionalEditingDomain dom = helper.getModelSet().getTransactionalEditingDomain();
final CompoundCommand cmd = new CompoundCommand("Change Architecture Viewpoint to open diagrams and tables"); //$NON-NLS-1$
if (!Arrays.equals(dialog.getSelectedContextIds(), contextIds)) {
cmd.append(helper.switchArchitectureContextId(dialog.getSelectedContextIds()[0]));
}
if (!Arrays.equals(dialog.getSelectedViewpointIds(), viewpointIds)) {
cmd.append(helper.switchArchitectureViewpointIds(dialog.getSelectedViewpointIds()));
}
if (!cmd.isEmpty()) {
dom.getCommandStack().execute(cmd);
}
}
return result;
}
}
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