org.eclipse.modisco.infra.browser/src/org/eclipse/modisco/infra/browser/actions/LoadFacetsAction.java - modisco/org.eclipse.modisco - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009, 2011 Mia-Software.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v20.html
  *
  * Contributors:
  *     Nicolas Bros (Mia-Software)
  *******************************************************************************/
 package org.eclipse.modisco.infra.browser.actions;

 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.emf.ecore.EPackage;
 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.dialogs.DialogSettings;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerFilter;
 import org.eclipse.jface.window.Window;
 import org.eclipse.modisco.infra.browser.Messages;
 import org.eclipse.modisco.infra.browser.MoDiscoBrowserPlugin;
 import org.eclipse.modisco.infra.browser.dialogs.EnableDerivedLinksPromptDialog;
 import org.eclipse.modisco.infra.browser.editors.EcoreBrowser;
 import org.eclipse.modisco.infra.browser.preferences.PreferenceConstants;
 import org.eclipse.modisco.infra.browser.uicore.internal.util.ImageProvider;
 import org.eclipse.modisco.infra.common.core.internal.utils.ModelUtils;
 import org.eclipse.modisco.infra.common.core.logging.MoDiscoLogger;
 import org.eclipse.modisco.infra.common.ui.internal.util.ImageUtils;
 import org.eclipse.modisco.infra.facet.Facet;
 import org.eclipse.modisco.infra.facet.FacetPackage;
 import org.eclipse.modisco.infra.facet.FacetSet;
 import org.eclipse.modisco.infra.facet.core.FacetSetCatalog;
 import org.eclipse.modisco.infra.facet.ui.views.FacetSetContentProvider;
 import org.eclipse.swt.custom.BusyIndicator;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.dialogs.CheckedTreeSelectionDialog;

 public class LoadFacetsAction extends Action {

 	private final IBrowserActionBarContributor browserActionBarContributor;

 	public LoadFacetsAction(final IBrowserActionBarContributor browserActionBarContributor) {
 		super(Messages.BrowserActionBarContributor_loadFacets, IAction.AS_PUSH_BUTTON);
 		this.browserActionBarContributor = browserActionBarContributor;
 		setToolTipText(Messages.BrowserActionBarContributor_loadFacets);
 		setImageDescriptor(ImageProvider.getInstance().getFacetIconDescriptor());
 	}

 	private static class LoadFacetsDialog extends CheckedTreeSelectionDialog {
 		private static final String LOAD_FACETS_DIALOG = "LoadFacetsDialog"; //$NON-NLS-1$
 		private static final String EXPANDED_ELEMENTS = "expandedElements"; //$NON-NLS-1$

 		// private Label messageArea;
 		// private Composite selectionButtons;

 		public LoadFacetsDialog(final Shell parent, final ILabelProvider labelProvider,
 				final ITreeContentProvider contentProvider, final Collection<EPackage> ePackages) {
 			super(parent, labelProvider, contentProvider);
 			// show only Facets corresponding to the current EPackages or
 			// referenced EPackages
 			final Set<EPackage> allReferencedPackages = new HashSet<EPackage>();

 			for (EPackage ePackage : ePackages) {
 				allReferencedPackages.add(ePackage);
 				final Set<EPackage> referencedPackages = ModelUtils
 						.computeReferencedPackages(ePackage);
 				allReferencedPackages.addAll(referencedPackages);
 			}

 			addFilter(new ViewerFilter() {
 				@Override
 				public boolean select(final Viewer viewer, final Object parentElement,
 						final Object element) {
 					if (element instanceof FacetSet) {
 						FacetSet facetSet = (FacetSet) element;
 						if (facetSet.getExtendedPackage() == null) {
 							return true;
 						}
 						EPackage extendedPackage = facetSet.getExtendedPackage();
 						return allReferencedPackages.contains(extendedPackage);
 					}
 					return true;
 				}
 			});
 		}

 		@Override
 		public int open() {
 			restoreExpandedElements();
 			return super.open();
 		}

 		@Override
 		public boolean close() {
 			saveExpandedElements();
 			return super.close();
 		}

 		public void saveExpandedElements() {
 			try {
 				String filename = getSettingsFilename();
 				DialogSettings settings = new DialogSettings(
 						LoadFacetsAction.LoadFacetsDialog.LOAD_FACETS_DIALOG);

 				List<String> expandedFacetSets = new ArrayList<String>();

 				Object[] expandedElements = getTreeViewer().getExpandedElements();
 				for (Object expandedElement : expandedElements) {
 					if (expandedElement instanceof FacetSet) {
 						FacetSet facetSet = (FacetSet) expandedElement;
 						expandedFacetSets.add(facetSet.getName());
 					}
 				}
 				String[] array = expandedFacetSets.toArray(new String[expandedFacetSets.size()]);
 				settings.put(LoadFacetsAction.LoadFacetsDialog.EXPANDED_ELEMENTS, array);
 				settings.save(filename);
 			} catch (Exception e) {
 				MoDiscoBrowserPlugin.logException(e);
 			}
 		}

 		private String getSettingsFilename() {
 			IPath stateLocation = MoDiscoBrowserPlugin.getPlugin().getStateLocation();
 			String filename = stateLocation.append(
 					LoadFacetsAction.LoadFacetsDialog.LOAD_FACETS_DIALOG).toOSString();
 			return filename;
 		}

 		public void restoreExpandedElements() {
 			try {
 				String filename = getSettingsFilename();
 				DialogSettings settings = new DialogSettings(
 						LoadFacetsAction.LoadFacetsDialog.LOAD_FACETS_DIALOG);
 				if (new File(filename).isFile()) {
 					settings.load(filename);
 					String[] array = settings
 							.getArray(LoadFacetsAction.LoadFacetsDialog.EXPANDED_ELEMENTS);

 					final Collection<FacetSet> facetSets = FacetSetCatalog.getSingleton()
 							.getAllFacetSets();
 					final List<FacetSet> expandedFacetSets = new ArrayList<FacetSet>();
 					for (String expandedFacetSetName : array) {
 						for (FacetSet facetSet : facetSets) {
 							if (facetSet.getName() != null
 									&& facetSet.getName().equals(expandedFacetSetName)) {
 								expandedFacetSets.add(facetSet);
 							}
 						}
 					}
 					setExpandedElements(expandedFacetSets.toArray());
 				}
 			} catch (Exception e) {
 				MoDiscoBrowserPlugin.logException(e);
 			}
 		}

 		// @Override
 		// public void setInput(final Object input) {
 		// super.setInput(input);
 		// getTreeViewer().setInput(input);
 		// if (input != null) {
 		//				//this.messageArea.setText(""); //$NON-NLS-1$
 		// this.messageArea.setEnabled(true);
 		// this.selectionButtons.setEnabled(true);
 		// getTreeViewer().getTree().setEnabled(true);
 		// }
 		// }
 		//
 		// public void refresh() {
 		// getTreeViewer().refresh();
 		// }
 		//
 		// @Override
 		// protected Label createMessageArea(final Composite composite) {
 		// this.messageArea = super.createMessageArea(composite);
 		// return this.messageArea;
 		// }
 		//
 		// @Override
 		// protected Composite createSelectionButtons(final Composite composite)
 		// {
 		// this.selectionButtons = super.createSelectionButtons(composite);
 		// return this.selectionButtons;
 		// }
 	}

 	@Override
 	public void run() {
 		final EcoreBrowser browser = this.browserActionBarContributor.getBrowser();
 		if (browser != null) {
 			BusyIndicator.showWhile(null, new Runnable() {
 				public void run() {
 					FacetSetCatalog.getSingleton().waitUntilBuilt();
 				}
 			});
 			openDialog(browser);
 			// FacetSetCatalog.getSingleton().whenBuilt(new Runnable() {
 			// public void run() {
 			// Display.getDefault().syncExec(new Runnable() {
 			// public void run() {
 			// openDialog(browser);
 			// }
 			// });
 			// }
 			// });
 		}
 	}

 	protected void openDialog(final EcoreBrowser browser) {
 		final ITreeContentProvider treeContentProvider = new FacetSetContentProvider(
 				FacetPackage.eINSTANCE.getFacet());

 		final LoadFacetsDialog dialog = new LoadFacetsDialog(null, this.labelProvider,
 				treeContentProvider, browser.getReferencedEPackages());
 		dialog.setContainerMode(true);
 		dialog.setHelpAvailable(false);
 		dialog.setTitle(Messages.BrowserActionBarContributor_dialogTitle_LoadFacets);
 		dialog.setMessage(Messages.BrowserActionBarContributor_chooseFacetToLoad);

 		final Collection<FacetSet> facetSets = FacetSetCatalog.getSingleton().getAllFacetSets();
 		dialog.setInput(facetSets.toArray());
 		dialog.setInitialElementSelections(new ArrayList<Facet>(browser.getBrowserConfiguration()
 				.getAppearanceConfiguration().getLoadedFacets()));

 		if (dialog.open() == Window.OK) {
 			final Object[] result = dialog.getResult();
 			browser.getBrowserConfiguration().getAppearanceConfiguration().clearFacets();
 			final HashSet<Facet> facetsToLoad = new HashSet<Facet>();
 			boolean promptShowDerivedLinks = false;
 			for (final Object resultElement : result) {
 				if (resultElement instanceof Facet) {
 					final Facet facet = (Facet) resultElement;
 					facetsToLoad.add(facet);
 					if (!facet.getEReferences().isEmpty() || !facet.getEAttributes().isEmpty()) {
 						promptShowDerivedLinks = true;
 					}
 				} else if (!(resultElement instanceof FacetSet)) {
 					throw new RuntimeException("Unexpected element type"); //$NON-NLS-1$
 				}
 			}

 			if (promptShowDerivedLinks
 					&& !this.browserActionBarContributor.getBrowser().isShowDerivedLinks()) {
 				maybeShowDerivedLinks();
 			}

 			loadFacets(facetsToLoad, browser);
 		}
 	}

 	public static void loadFacets(final Collection<Facet> facetsToLoad, final EcoreBrowser browser) {
 		final Object loadFacetsFamily = new Object();
 		for (final Facet facetToLoad : facetsToLoad) {
 			Job loadFacetsJob = new Job(Messages.LoadFacetsAction_LoadingFacet + facetToLoad.getName()) {
 				@Override
 				protected IStatus run(final IProgressMonitor monitor) {
 					browser.getBrowserConfiguration().getAppearanceConfiguration()
 							.loadFacet(facetToLoad);
 					return Status.OK_STATUS;
 				}

 				@Override
 				public boolean belongsTo(final Object family) {
 					if (family == loadFacetsFamily) {
 						return true;
 					}
 					return super.belongsTo(family);
 				}
 			};
 			loadFacetsJob.setPriority(Job.LONG);
 			loadFacetsJob.schedule();
 		}

 		Job job = new Job(Messages.LoadFacetsAction_LoadingFacets) {
 			@Override
 			protected IStatus run(final IProgressMonitor monitor) {
 				try {
 					Job.getJobManager().join(loadFacetsFamily, monitor);
 				} catch (Exception e) {
 					MoDiscoLogger.logError(e, MoDiscoBrowserPlugin.getPlugin());
 					return Status.CANCEL_STATUS;
 				}
 				if (facetsToLoad.size() > 0) {
 					// since customizations can apply to facets, reload
 					// customizations
 					browser.getBrowserConfiguration().getAppearanceConfiguration()
 							.getCustomizationEngine().loadCustomizations();
 				}
 				// browser.reloadModel();
 				// for modified facets
 				browser.getBrowserConfiguration().getInstancesForMetaclasses()
 						.buildDerivationTree();
 				browser.getBrowserConfiguration().getAppearanceConfiguration().touch();
 				browser.refreshDelayed(true);
 				return Status.OK_STATUS;
 			}
 		};
 		job.setPriority(Job.LONG);
 		job.schedule();
 	}

 	private void maybeShowDerivedLinks() {
 		IPreferenceStore preferenceStore = MoDiscoBrowserPlugin.getPlugin().getPreferenceStore();
 		String pref = preferenceStore
 				.getString(PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_SETTING);
 		boolean showDerivedLinks = false;
 		if (PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_ASK.equals(pref)) {
 			showDerivedLinks = EnableDerivedLinksPromptDialog.open(null);
 		} else if (PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_ALWAYS.equals(pref)) {
 			showDerivedLinks = true;
 		} else if (PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_NEVER.equals(pref)) {
 			showDerivedLinks = false;
 		}

 		if (showDerivedLinks) {
 			this.browserActionBarContributor.getBrowser().setShowDerivedLinks(true);
 			this.browserActionBarContributor.getBrowser().refreshToolbar();
 		}

 	}

 	private final LabelProvider labelProvider = new LabelProvider() {
 		@Override
 		public String getText(final Object element) {
 			String label;
 			if (element instanceof FacetSet) {
 				final FacetSet facetSet = (FacetSet) element;
 				label = facetSet.getName();
 			} else if (element instanceof Facet) {
 				final Facet facet = (Facet) element;
 				label = facet.getName();
 			} else if (element == null) {
 				label = "null"; //$NON-NLS-1$
 			} else {
 				label = element.getClass().getName();
 			}
 			return label;
 		}

 		@Override
 		public Image getImage(final Object element) {
 			return ImageUtils.getImage(element);
 		}
 	};
 }
	/*******************************************************************************
	* Copyright (c) 2009, 2011 Mia-Software.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v2.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v20.html
	*
	* Contributors:
	* Nicolas Bros (Mia-Software)
	*******************************************************************************/
	package org.eclipse.modisco.infra.browser.actions;

	import java.io.File;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.core.runtime.jobs.Job;
	import org.eclipse.emf.ecore.EPackage;
	import org.eclipse.jface.action.Action;
	import org.eclipse.jface.action.IAction;
	import org.eclipse.jface.dialogs.DialogSettings;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.ITreeContentProvider;
	import org.eclipse.jface.viewers.LabelProvider;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerFilter;
	import org.eclipse.jface.window.Window;
	import org.eclipse.modisco.infra.browser.Messages;
	import org.eclipse.modisco.infra.browser.MoDiscoBrowserPlugin;
	import org.eclipse.modisco.infra.browser.dialogs.EnableDerivedLinksPromptDialog;
	import org.eclipse.modisco.infra.browser.editors.EcoreBrowser;
	import org.eclipse.modisco.infra.browser.preferences.PreferenceConstants;
	import org.eclipse.modisco.infra.browser.uicore.internal.util.ImageProvider;
	import org.eclipse.modisco.infra.common.core.internal.utils.ModelUtils;
	import org.eclipse.modisco.infra.common.core.logging.MoDiscoLogger;
	import org.eclipse.modisco.infra.common.ui.internal.util.ImageUtils;
	import org.eclipse.modisco.infra.facet.Facet;
	import org.eclipse.modisco.infra.facet.FacetPackage;
	import org.eclipse.modisco.infra.facet.FacetSet;
	import org.eclipse.modisco.infra.facet.core.FacetSetCatalog;
	import org.eclipse.modisco.infra.facet.ui.views.FacetSetContentProvider;
	import org.eclipse.swt.custom.BusyIndicator;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.ui.dialogs.CheckedTreeSelectionDialog;

	public class LoadFacetsAction extends Action {

	private final IBrowserActionBarContributor browserActionBarContributor;

	public LoadFacetsAction(final IBrowserActionBarContributor browserActionBarContributor) {
	super(Messages.BrowserActionBarContributor_loadFacets, IAction.AS_PUSH_BUTTON);
	this.browserActionBarContributor = browserActionBarContributor;
	setToolTipText(Messages.BrowserActionBarContributor_loadFacets);
	setImageDescriptor(ImageProvider.getInstance().getFacetIconDescriptor());
	}

	private static class LoadFacetsDialog extends CheckedTreeSelectionDialog {
	private static final String LOAD_FACETS_DIALOG = "LoadFacetsDialog"; //$NON-NLS-1$
	private static final String EXPANDED_ELEMENTS = "expandedElements"; //$NON-NLS-1$

	// private Label messageArea;
	// private Composite selectionButtons;

	public LoadFacetsDialog(final Shell parent, final ILabelProvider labelProvider,
	final ITreeContentProvider contentProvider, final Collection<EPackage> ePackages) {
	super(parent, labelProvider, contentProvider);
	// show only Facets corresponding to the current EPackages or
	// referenced EPackages
	final Set<EPackage> allReferencedPackages = new HashSet<EPackage>();

	for (EPackage ePackage : ePackages) {
	allReferencedPackages.add(ePackage);
	final Set<EPackage> referencedPackages = ModelUtils
	.computeReferencedPackages(ePackage);
	allReferencedPackages.addAll(referencedPackages);
	}

	addFilter(new ViewerFilter() {
	@Override
	public boolean select(final Viewer viewer, final Object parentElement,
	final Object element) {
	if (element instanceof FacetSet) {
	FacetSet facetSet = (FacetSet) element;
	if (facetSet.getExtendedPackage() == null) {
	return true;
	}
	EPackage extendedPackage = facetSet.getExtendedPackage();
	return allReferencedPackages.contains(extendedPackage);
	}
	return true;
	}
	});
	}

	@Override
	public int open() {
	restoreExpandedElements();
	return super.open();
	}

	@Override
	public boolean close() {
	saveExpandedElements();
	return super.close();
	}

	public void saveExpandedElements() {
	try {
	String filename = getSettingsFilename();
	DialogSettings settings = new DialogSettings(
	LoadFacetsAction.LoadFacetsDialog.LOAD_FACETS_DIALOG);

	List<String> expandedFacetSets = new ArrayList<String>();

	Object[] expandedElements = getTreeViewer().getExpandedElements();
	for (Object expandedElement : expandedElements) {
	if (expandedElement instanceof FacetSet) {
	FacetSet facetSet = (FacetSet) expandedElement;
	expandedFacetSets.add(facetSet.getName());
	}
	}
	String[] array = expandedFacetSets.toArray(new String[expandedFacetSets.size()]);
	settings.put(LoadFacetsAction.LoadFacetsDialog.EXPANDED_ELEMENTS, array);
	settings.save(filename);
	} catch (Exception e) {
	MoDiscoBrowserPlugin.logException(e);
	}
	}

	private String getSettingsFilename() {
	IPath stateLocation = MoDiscoBrowserPlugin.getPlugin().getStateLocation();
	String filename = stateLocation.append(
	LoadFacetsAction.LoadFacetsDialog.LOAD_FACETS_DIALOG).toOSString();
	return filename;
	}

	public void restoreExpandedElements() {
	try {
	String filename = getSettingsFilename();
	DialogSettings settings = new DialogSettings(
	LoadFacetsAction.LoadFacetsDialog.LOAD_FACETS_DIALOG);
	if (new File(filename).isFile()) {
	settings.load(filename);
	String[] array = settings
	.getArray(LoadFacetsAction.LoadFacetsDialog.EXPANDED_ELEMENTS);

	final Collection<FacetSet> facetSets = FacetSetCatalog.getSingleton()
	.getAllFacetSets();
	final List<FacetSet> expandedFacetSets = new ArrayList<FacetSet>();
	for (String expandedFacetSetName : array) {
	for (FacetSet facetSet : facetSets) {
	if (facetSet.getName() != null
	&& facetSet.getName().equals(expandedFacetSetName)) {
	expandedFacetSets.add(facetSet);
	}
	}
	}
	setExpandedElements(expandedFacetSets.toArray());
	}
	} catch (Exception e) {
	MoDiscoBrowserPlugin.logException(e);
	}
	}

	// @Override
	// public void setInput(final Object input) {
	// super.setInput(input);
	// getTreeViewer().setInput(input);
	// if (input != null) {
	// //this.messageArea.setText(""); //$NON-NLS-1$
	// this.messageArea.setEnabled(true);
	// this.selectionButtons.setEnabled(true);
	// getTreeViewer().getTree().setEnabled(true);
	// }
	// }
	//
	// public void refresh() {
	// getTreeViewer().refresh();
	// }
	//
	// @Override
	// protected Label createMessageArea(final Composite composite) {
	// this.messageArea = super.createMessageArea(composite);
	// return this.messageArea;
	// }
	//
	// @Override
	// protected Composite createSelectionButtons(final Composite composite)
	// {
	// this.selectionButtons = super.createSelectionButtons(composite);
	// return this.selectionButtons;
	// }
	}

	@Override
	public void run() {
	final EcoreBrowser browser = this.browserActionBarContributor.getBrowser();
	if (browser != null) {
	BusyIndicator.showWhile(null, new Runnable() {
	public void run() {
	FacetSetCatalog.getSingleton().waitUntilBuilt();
	}
	});
	openDialog(browser);
	// FacetSetCatalog.getSingleton().whenBuilt(new Runnable() {
	// public void run() {
	// Display.getDefault().syncExec(new Runnable() {
	// public void run() {
	// openDialog(browser);
	// }
	// });
	// }
	// });
	}
	}

	protected void openDialog(final EcoreBrowser browser) {
	final ITreeContentProvider treeContentProvider = new FacetSetContentProvider(
	FacetPackage.eINSTANCE.getFacet());

	final LoadFacetsDialog dialog = new LoadFacetsDialog(null, this.labelProvider,
	treeContentProvider, browser.getReferencedEPackages());
	dialog.setContainerMode(true);
	dialog.setHelpAvailable(false);
	dialog.setTitle(Messages.BrowserActionBarContributor_dialogTitle_LoadFacets);
	dialog.setMessage(Messages.BrowserActionBarContributor_chooseFacetToLoad);

	final Collection<FacetSet> facetSets = FacetSetCatalog.getSingleton().getAllFacetSets();
	dialog.setInput(facetSets.toArray());
	dialog.setInitialElementSelections(new ArrayList<Facet>(browser.getBrowserConfiguration()
	.getAppearanceConfiguration().getLoadedFacets()));

	if (dialog.open() == Window.OK) {
	final Object[] result = dialog.getResult();
	browser.getBrowserConfiguration().getAppearanceConfiguration().clearFacets();
	final HashSet<Facet> facetsToLoad = new HashSet<Facet>();
	boolean promptShowDerivedLinks = false;
	for (final Object resultElement : result) {
	if (resultElement instanceof Facet) {
	final Facet facet = (Facet) resultElement;
	facetsToLoad.add(facet);
	if (!facet.getEReferences().isEmpty() \|\| !facet.getEAttributes().isEmpty()) {
	promptShowDerivedLinks = true;
	}
	} else if (!(resultElement instanceof FacetSet)) {
	throw new RuntimeException("Unexpected element type"); //$NON-NLS-1$
	}
	}

	if (promptShowDerivedLinks
	&& !this.browserActionBarContributor.getBrowser().isShowDerivedLinks()) {
	maybeShowDerivedLinks();
	}

	loadFacets(facetsToLoad, browser);
	}
	}

	public static void loadFacets(final Collection<Facet> facetsToLoad, final EcoreBrowser browser) {
	final Object loadFacetsFamily = new Object();
	for (final Facet facetToLoad : facetsToLoad) {
	Job loadFacetsJob = new Job(Messages.LoadFacetsAction_LoadingFacet + facetToLoad.getName()) {
	@Override
	protected IStatus run(final IProgressMonitor monitor) {
	browser.getBrowserConfiguration().getAppearanceConfiguration()
	.loadFacet(facetToLoad);
	return Status.OK_STATUS;
	}

	@Override
	public boolean belongsTo(final Object family) {
	if (family == loadFacetsFamily) {
	return true;
	}
	return super.belongsTo(family);
	}
	};
	loadFacetsJob.setPriority(Job.LONG);
	loadFacetsJob.schedule();
	}

	Job job = new Job(Messages.LoadFacetsAction_LoadingFacets) {
	@Override
	protected IStatus run(final IProgressMonitor monitor) {
	try {
	Job.getJobManager().join(loadFacetsFamily, monitor);
	} catch (Exception e) {
	MoDiscoLogger.logError(e, MoDiscoBrowserPlugin.getPlugin());
	return Status.CANCEL_STATUS;
	}
	if (facetsToLoad.size() > 0) {
	// since customizations can apply to facets, reload
	// customizations
	browser.getBrowserConfiguration().getAppearanceConfiguration()
	.getCustomizationEngine().loadCustomizations();
	}
	// browser.reloadModel();
	// for modified facets
	browser.getBrowserConfiguration().getInstancesForMetaclasses()
	.buildDerivationTree();
	browser.getBrowserConfiguration().getAppearanceConfiguration().touch();
	browser.refreshDelayed(true);
	return Status.OK_STATUS;
	}
	};
	job.setPriority(Job.LONG);
	job.schedule();
	}

	private void maybeShowDerivedLinks() {
	IPreferenceStore preferenceStore = MoDiscoBrowserPlugin.getPlugin().getPreferenceStore();
	String pref = preferenceStore
	.getString(PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_SETTING);
	boolean showDerivedLinks = false;
	if (PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_ASK.equals(pref)) {
	showDerivedLinks = EnableDerivedLinksPromptDialog.open(null);
	} else if (PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_ALWAYS.equals(pref)) {
	showDerivedLinks = true;
	} else if (PreferenceConstants.P_BROWSER_ENABLE_DERIVED_LINKS_NEVER.equals(pref)) {
	showDerivedLinks = false;
	}

	if (showDerivedLinks) {
	this.browserActionBarContributor.getBrowser().setShowDerivedLinks(true);
	this.browserActionBarContributor.getBrowser().refreshToolbar();
	}

	}

	private final LabelProvider labelProvider = new LabelProvider() {
	@Override
	public String getText(final Object element) {
	String label;
	if (element instanceof FacetSet) {
	final FacetSet facetSet = (FacetSet) element;
	label = facetSet.getName();
	} else if (element instanceof Facet) {
	final Facet facet = (Facet) element;
	label = facet.getName();
	} else if (element == null) {
	label = "null"; //$NON-NLS-1$
	} else {
	label = element.getClass().getName();
	}
	return label;
	}

	@Override
	public Image getImage(final Object element) {
	return ImageUtils.getImage(element);
	}
	};
	}