org.eclipse.m2e.core.ui/src/org/eclipse/m2e/core/ui/internal/preferences/MavenArchetypesPreferencePage.java - gerrit/m2e/m2e-core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008-2018 Sonatype, Inc.
  * 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
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *      Sonatype, Inc. - initial API and implementation
  *******************************************************************************/

 package org.eclipse.m2e.core.ui.internal.preferences;

 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;

 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 import org.eclipse.jface.preference.PreferencePage;
 import org.eclipse.jface.viewers.CheckboxTableViewer;
 import org.eclipse.jface.viewers.IColorProvider;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITableLabelProvider;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.window.Window;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Link;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPreferencePage;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.browser.IWebBrowser;

 import org.eclipse.m2e.core.internal.MavenPluginActivator;
 import org.eclipse.m2e.core.internal.archetype.ArchetypeCatalogFactory;
 import org.eclipse.m2e.core.internal.archetype.ArchetypeCatalogFactory.LocalCatalogFactory;
 import org.eclipse.m2e.core.internal.archetype.ArchetypeCatalogFactory.RemoteCatalogFactory;
 import org.eclipse.m2e.core.internal.archetype.ArchetypeManager;
 import org.eclipse.m2e.core.ui.internal.Messages;


 /**
  * Maven Archetype catalogs preference page
  *
  * @author Eugene Kuleshov
  */
 public class MavenArchetypesPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
   private static final Logger log = LoggerFactory.getLogger(MavenArchetypesPreferencePage.class);

   ArchetypeManager archetypeManager;

   CheckboxTableViewer archetypesViewer;

   List<ArchetypeCatalogFactory> archetypeCatalogs;

   public MavenArchetypesPreferencePage() {
     setTitle(Messages.MavenArchetypesPreferencePage_title);

     this.archetypeManager = MavenPluginActivator.getDefault().getArchetypeManager();
   }

   protected void performDefaults() {
     for(Iterator<ArchetypeCatalogFactory> it = archetypeCatalogs.iterator(); it.hasNext();) {
       ArchetypeCatalogFactory factory = it.next();
       if(factory.isEditable()) {
         it.remove();
       }
     }
     archetypesViewer.setAllChecked(true);
     archetypesViewer.setInput(archetypeCatalogs);
     archetypesViewer.setSelection(null, true);

     super.performDefaults();
   }

   public boolean performOk() {
     Collection<ArchetypeCatalogFactory> catalogs = archetypeManager.getArchetypeCatalogs();
     for(ArchetypeCatalogFactory factory : catalogs) {
       if(factory.isEditable()) {
         archetypeManager.removeArchetypeCatalogFactory(factory.getId());
       }
     }
     for(ArchetypeCatalogFactory factory : archetypeCatalogs) {
       factory.setEnabled(archetypesViewer.getChecked(factory));
       if(factory.isEditable()) {
         archetypeManager.addArchetypeCatalogFactory(factory);
       }
     }

     try {

       archetypeManager.saveCatalogs();
     } catch(IOException ex) {
       setErrorMessage(NLS.bind(Messages.MavenArchetypesPreferencePage_error, ex.getMessage()));
       return false;
     }

     return super.performOk();
   }

   public void init(IWorkbench workbench) {
   }

   protected Control createContents(Composite parent) {
     Composite composite = new Composite(parent, SWT.NONE);
     GridLayout gridLayout = new GridLayout(2, false);
     gridLayout.marginWidth = 0;
     gridLayout.marginHeight = 0;
     composite.setLayout(gridLayout);

     Link addRemoveOrLink = new Link(composite, SWT.NONE);
     GridData gd_addRemoveOrLink = new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1);
     addRemoveOrLink.setLayoutData(gd_addRemoveOrLink);
     addRemoveOrLink.setText(Messages.MavenArchetypesPreferencePage_link);
     addRemoveOrLink.addSelectionListener(new SelectionAdapter() {
       public void widgetSelected(SelectionEvent e) {
         try {
           URL url = new URL(
               "http://maven.apache.org/plugins/maven-archetype-plugin/specification/archetype-catalog.html"); //$NON-NLS-1$
           IWebBrowser browser = PlatformUI.getWorkbench().getBrowserSupport().getExternalBrowser();
           browser.openURL(url);
         } catch(MalformedURLException ex) {
           log.error("Malformed URL", ex); //$NON-NLS-1$
         } catch(PartInitException ex) {
           log.error(ex.getMessage(), ex);
         }
       }
     });

     archetypesViewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER | SWT.FULL_SELECTION);

     archetypesViewer.setLabelProvider(new CatalogsLabelProvider());

     archetypesViewer.setContentProvider(new IStructuredContentProvider() {

       public Object[] getElements(Object input) {
         if(input instanceof Collection) {
           return ((Collection<?>) input).toArray();
         }
         return new Object[0];
       }

       public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
       }

       public void dispose() {
       }

     });

     Table table = archetypesViewer.getTable();
     table.setLinesVisible(false);
     table.setHeaderVisible(false);
     table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 1, 6));

     TableColumn typeColumn = new TableColumn(table, SWT.NONE);
     typeColumn.setWidth(250);
     typeColumn.setText(""); //$NON-NLS-1$

     Button enableAllBtn = new Button(composite, SWT.NONE);
     enableAllBtn.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
     enableAllBtn.setText(Messages.MavenArchetypesPreferencePage_btnEnableAll);
     enableAllBtn.addSelectionListener(new SelectionAdapter() {
       public void widgetSelected(SelectionEvent e) {
         toggleRepositories(true);
       }
     });

     Button disableAllBtn = new Button(composite, SWT.NONE);
     disableAllBtn.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
     disableAllBtn.setText(Messages.MavenArchetypesPreferencePage_btnDisableAll);
     disableAllBtn.addSelectionListener(new SelectionAdapter() {
       public void widgetSelected(SelectionEvent e) {
         toggleRepositories(false);
       }
     });

     Button addLocalButton = new Button(composite, SWT.NONE);
     addLocalButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
     addLocalButton.setText(Messages.MavenArchetypesPreferencePage_btnAddLocal);
     addLocalButton.addSelectionListener(new SelectionAdapter() {
       public void widgetSelected(SelectionEvent e) {
         LocalArchetypeCatalogDialog dialog = new LocalArchetypeCatalogDialog(getShell(), null);
         if(dialog.open() == Window.OK) {
           addCatalogFactory(dialog.getArchetypeCatalogFactory());
         }
       }
     });

     Button addRemoteButton = new Button(composite, SWT.NONE);
     addRemoteButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
     addRemoteButton.setText(Messages.MavenArchetypesPreferencePage_btnAddRemote);
     addRemoteButton.addSelectionListener(new SelectionAdapter() {
       public void widgetSelected(SelectionEvent e) {
         RemoteArchetypeCatalogDialog dialog = new RemoteArchetypeCatalogDialog(getShell(), null);
         if(dialog.open() == Window.OK) {
           addCatalogFactory(dialog.getArchetypeCatalogFactory());
         }
       }
     });

     final Button editButton = new Button(composite, SWT.NONE);
     editButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
     editButton.setEnabled(false);
     editButton.setText(Messages.MavenArchetypesPreferencePage_btnEdit);
     editButton.addSelectionListener(new SelectionAdapter() {
       public void widgetSelected(SelectionEvent e) {
         ArchetypeCatalogFactory factory = getSelectedArchetypeCatalogFactory();
         ArchetypeCatalogFactory newFactory = null;
         if(factory instanceof LocalCatalogFactory) {
           LocalArchetypeCatalogDialog dialog = new LocalArchetypeCatalogDialog(getShell(), factory);
           if(dialog.open() == Window.OK) {
             newFactory = dialog.getArchetypeCatalogFactory();
           }
         } else if(factory instanceof RemoteCatalogFactory) {
           RemoteArchetypeCatalogDialog dialog = new RemoteArchetypeCatalogDialog(getShell(), factory);
           if(dialog.open() == Window.OK) {
             newFactory = dialog.getArchetypeCatalogFactory();
           }
         }
         if(newFactory != null) {
           int n = archetypeCatalogs.indexOf(factory);
           if(n > -1) {
             archetypeCatalogs.set(n, newFactory);
             archetypesViewer.setInput(archetypeCatalogs);
             archetypesViewer.setSelection(new StructuredSelection(newFactory), true);
           }
         }
       }
     });

     final Button removeButton = new Button(composite, SWT.NONE);
     removeButton.setEnabled(false);
     removeButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, true));
     removeButton.setText(Messages.MavenArchetypesPreferencePage_btnRemove);
     removeButton.addSelectionListener(new SelectionAdapter() {
       public void widgetSelected(SelectionEvent e) {
         ArchetypeCatalogFactory factory = getSelectedArchetypeCatalogFactory();
         archetypeCatalogs.remove(factory);
         archetypesViewer.setInput(archetypeCatalogs);
         archetypesViewer.setSelection(null, true);
       }
     });

     archetypesViewer.addSelectionChangedListener(event -> {
       if(archetypesViewer.getSelection() instanceof IStructuredSelection) {
         ArchetypeCatalogFactory factory = getSelectedArchetypeCatalogFactory();
         boolean isEnabled = factory != null && factory.isEditable();
         removeButton.setEnabled(isEnabled);
         editButton.setEnabled(isEnabled);
       }
     });

     archetypesViewer.addCheckStateListener((event) -> {
       archetypesViewer.refresh(event.getElement(), true);
     });

     archetypeCatalogs = new ArrayList<ArchetypeCatalogFactory>(archetypeManager.getArchetypeCatalogs());
     archetypesViewer.setInput(archetypeCatalogs);
     archetypeCatalogs.forEach(a -> archetypesViewer.setChecked(a, a.isEnabled()));
     archetypesViewer.refresh(); // should listen on property changes instead?

     return composite;
   }

   protected void toggleRepositories(boolean toggle) {
     archetypeCatalogs.forEach(a -> archetypesViewer.setChecked(a, toggle));
     archetypesViewer.refresh();
   }

   protected ArchetypeCatalogFactory getSelectedArchetypeCatalogFactory() {
     IStructuredSelection selection = (IStructuredSelection) archetypesViewer.getSelection();
     return (ArchetypeCatalogFactory) selection.getFirstElement();
   }

   private void addCatalogFactory(ArchetypeCatalogFactory factory) {
     if(factory == null) {
       return;
     }
     archetypeCatalogs.add(factory);
     if(!archetypesViewer.getControl().isDisposed()) {
       archetypesViewer.setInput(archetypeCatalogs);
       archetypesViewer.setChecked(factory, true);
       archetypesViewer.setSelection(new StructuredSelection(factory), true);
     }
   }

   class CatalogsLabelProvider implements ITableLabelProvider, IColorProvider {

     private Color disabledColor = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_GRAY);

     public String getColumnText(Object element, int columnIndex) {
       ArchetypeCatalogFactory factory = (ArchetypeCatalogFactory) element;
       String description = factory.getDescription();
       String text;
       if(factory instanceof LocalCatalogFactory) {
         text = NLS.bind(Messages.MavenArchetypesPreferencePage_local, description);
       } else if(factory instanceof RemoteCatalogFactory) {
         if(factory.isEditable()) {
           text = NLS.bind(Messages.MavenArchetypesPreferencePage_remote, description);
         } else {
           text = NLS.bind(Messages.MavenArchetypesPreferencePage_packaged, description);
         }
       } else {
         text = description;
       }

       return factory.isEditable() ? text : NLS.bind(Messages.MavenArchetypesPreferencePage_SystemLabel, text);
     }

     public Image getColumnImage(Object element, int columnIndex) {
       return null;
     }

     public Color getBackground(Object element) {
       return null;
     }

     public Color getForeground(Object element) {
       return archetypesViewer.getChecked(element) ? null : disabledColor;
     }

     public void dispose() {
     }

     public boolean isLabelProperty(Object element, String property) {
       return false;
     }

     public void addListener(ILabelProviderListener listener) {
     }

     public void removeListener(ILabelProviderListener listener) {
     }

   }

 }
	/*******************************************************************************
	* Copyright (c) 2008-2018 Sonatype, Inc.
	* 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
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Sonatype, Inc. - initial API and implementation
	*******************************************************************************/

	package org.eclipse.m2e.core.ui.internal.preferences;

	import java.io.IOException;
	import java.net.MalformedURLException;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.Iterator;
	import java.util.List;

	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import org.eclipse.jface.preference.PreferencePage;
	import org.eclipse.jface.viewers.CheckboxTableViewer;
	import org.eclipse.jface.viewers.IColorProvider;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITableLabelProvider;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.window.Window;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Link;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;
	import org.eclipse.ui.IWorkbench;
	import org.eclipse.ui.IWorkbenchPreferencePage;
	import org.eclipse.ui.PartInitException;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.browser.IWebBrowser;

	import org.eclipse.m2e.core.internal.MavenPluginActivator;
	import org.eclipse.m2e.core.internal.archetype.ArchetypeCatalogFactory;
	import org.eclipse.m2e.core.internal.archetype.ArchetypeCatalogFactory.LocalCatalogFactory;
	import org.eclipse.m2e.core.internal.archetype.ArchetypeCatalogFactory.RemoteCatalogFactory;
	import org.eclipse.m2e.core.internal.archetype.ArchetypeManager;
	import org.eclipse.m2e.core.ui.internal.Messages;


	/**
	* Maven Archetype catalogs preference page
	*
	* @author Eugene Kuleshov
	*/
	public class MavenArchetypesPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
	private static final Logger log = LoggerFactory.getLogger(MavenArchetypesPreferencePage.class);

	ArchetypeManager archetypeManager;

	CheckboxTableViewer archetypesViewer;

	List<ArchetypeCatalogFactory> archetypeCatalogs;

	public MavenArchetypesPreferencePage() {
	setTitle(Messages.MavenArchetypesPreferencePage_title);

	this.archetypeManager = MavenPluginActivator.getDefault().getArchetypeManager();
	}

	protected void performDefaults() {
	for(Iterator<ArchetypeCatalogFactory> it = archetypeCatalogs.iterator(); it.hasNext();) {
	ArchetypeCatalogFactory factory = it.next();
	if(factory.isEditable()) {
	it.remove();
	}
	}
	archetypesViewer.setAllChecked(true);
	archetypesViewer.setInput(archetypeCatalogs);
	archetypesViewer.setSelection(null, true);

	super.performDefaults();
	}

	public boolean performOk() {
	Collection<ArchetypeCatalogFactory> catalogs = archetypeManager.getArchetypeCatalogs();
	for(ArchetypeCatalogFactory factory : catalogs) {
	if(factory.isEditable()) {
	archetypeManager.removeArchetypeCatalogFactory(factory.getId());
	}
	}
	for(ArchetypeCatalogFactory factory : archetypeCatalogs) {
	factory.setEnabled(archetypesViewer.getChecked(factory));
	if(factory.isEditable()) {
	archetypeManager.addArchetypeCatalogFactory(factory);
	}
	}

	try {

	archetypeManager.saveCatalogs();
	} catch(IOException ex) {
	setErrorMessage(NLS.bind(Messages.MavenArchetypesPreferencePage_error, ex.getMessage()));
	return false;
	}

	return super.performOk();
	}

	public void init(IWorkbench workbench) {
	}

	protected Control createContents(Composite parent) {
	Composite composite = new Composite(parent, SWT.NONE);
	GridLayout gridLayout = new GridLayout(2, false);
	gridLayout.marginWidth = 0;
	gridLayout.marginHeight = 0;
	composite.setLayout(gridLayout);

	Link addRemoveOrLink = new Link(composite, SWT.NONE);
	GridData gd_addRemoveOrLink = new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1);
	addRemoveOrLink.setLayoutData(gd_addRemoveOrLink);
	addRemoveOrLink.setText(Messages.MavenArchetypesPreferencePage_link);
	addRemoveOrLink.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	try {
	URL url = new URL(
	"http://maven.apache.org/plugins/maven-archetype-plugin/specification/archetype-catalog.html"); //$NON-NLS-1$
	IWebBrowser browser = PlatformUI.getWorkbench().getBrowserSupport().getExternalBrowser();
	browser.openURL(url);
	} catch(MalformedURLException ex) {
	log.error("Malformed URL", ex); //$NON-NLS-1$
	} catch(PartInitException ex) {
	log.error(ex.getMessage(), ex);
	}
	}
	});

	archetypesViewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER \| SWT.FULL_SELECTION);

	archetypesViewer.setLabelProvider(new CatalogsLabelProvider());

	archetypesViewer.setContentProvider(new IStructuredContentProvider() {

	public Object[] getElements(Object input) {
	if(input instanceof Collection) {
	return ((Collection<?>) input).toArray();
	}
	return new Object[0];
	}

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}

	public void dispose() {
	}

	});

	Table table = archetypesViewer.getTable();
	table.setLinesVisible(false);
	table.setHeaderVisible(false);
	table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 1, 6));

	TableColumn typeColumn = new TableColumn(table, SWT.NONE);
	typeColumn.setWidth(250);
	typeColumn.setText(""); //$NON-NLS-1$

	Button enableAllBtn = new Button(composite, SWT.NONE);
	enableAllBtn.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
	enableAllBtn.setText(Messages.MavenArchetypesPreferencePage_btnEnableAll);
	enableAllBtn.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	toggleRepositories(true);
	}
	});

	Button disableAllBtn = new Button(composite, SWT.NONE);
	disableAllBtn.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
	disableAllBtn.setText(Messages.MavenArchetypesPreferencePage_btnDisableAll);
	disableAllBtn.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	toggleRepositories(false);
	}
	});

	Button addLocalButton = new Button(composite, SWT.NONE);
	addLocalButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
	addLocalButton.setText(Messages.MavenArchetypesPreferencePage_btnAddLocal);
	addLocalButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	LocalArchetypeCatalogDialog dialog = new LocalArchetypeCatalogDialog(getShell(), null);
	if(dialog.open() == Window.OK) {
	addCatalogFactory(dialog.getArchetypeCatalogFactory());
	}
	}
	});

	Button addRemoteButton = new Button(composite, SWT.NONE);
	addRemoteButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
	addRemoteButton.setText(Messages.MavenArchetypesPreferencePage_btnAddRemote);
	addRemoteButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	RemoteArchetypeCatalogDialog dialog = new RemoteArchetypeCatalogDialog(getShell(), null);
	if(dialog.open() == Window.OK) {
	addCatalogFactory(dialog.getArchetypeCatalogFactory());
	}
	}
	});

	final Button editButton = new Button(composite, SWT.NONE);
	editButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
	editButton.setEnabled(false);
	editButton.setText(Messages.MavenArchetypesPreferencePage_btnEdit);
	editButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	ArchetypeCatalogFactory factory = getSelectedArchetypeCatalogFactory();
	ArchetypeCatalogFactory newFactory = null;
	if(factory instanceof LocalCatalogFactory) {
	LocalArchetypeCatalogDialog dialog = new LocalArchetypeCatalogDialog(getShell(), factory);
	if(dialog.open() == Window.OK) {
	newFactory = dialog.getArchetypeCatalogFactory();
	}
	} else if(factory instanceof RemoteCatalogFactory) {
	RemoteArchetypeCatalogDialog dialog = new RemoteArchetypeCatalogDialog(getShell(), factory);
	if(dialog.open() == Window.OK) {
	newFactory = dialog.getArchetypeCatalogFactory();
	}
	}
	if(newFactory != null) {
	int n = archetypeCatalogs.indexOf(factory);
	if(n > -1) {
	archetypeCatalogs.set(n, newFactory);
	archetypesViewer.setInput(archetypeCatalogs);
	archetypesViewer.setSelection(new StructuredSelection(newFactory), true);
	}
	}
	}
	});

	final Button removeButton = new Button(composite, SWT.NONE);
	removeButton.setEnabled(false);
	removeButton.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, true));
	removeButton.setText(Messages.MavenArchetypesPreferencePage_btnRemove);
	removeButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	ArchetypeCatalogFactory factory = getSelectedArchetypeCatalogFactory();
	archetypeCatalogs.remove(factory);
	archetypesViewer.setInput(archetypeCatalogs);
	archetypesViewer.setSelection(null, true);
	}
	});

	archetypesViewer.addSelectionChangedListener(event -> {
	if(archetypesViewer.getSelection() instanceof IStructuredSelection) {
	ArchetypeCatalogFactory factory = getSelectedArchetypeCatalogFactory();
	boolean isEnabled = factory != null && factory.isEditable();
	removeButton.setEnabled(isEnabled);
	editButton.setEnabled(isEnabled);
	}
	});

	archetypesViewer.addCheckStateListener((event) -> {
	archetypesViewer.refresh(event.getElement(), true);
	});

	archetypeCatalogs = new ArrayList<ArchetypeCatalogFactory>(archetypeManager.getArchetypeCatalogs());
	archetypesViewer.setInput(archetypeCatalogs);
	archetypeCatalogs.forEach(a -> archetypesViewer.setChecked(a, a.isEnabled()));
	archetypesViewer.refresh(); // should listen on property changes instead?

	return composite;
	}

	protected void toggleRepositories(boolean toggle) {
	archetypeCatalogs.forEach(a -> archetypesViewer.setChecked(a, toggle));
	archetypesViewer.refresh();
	}

	protected ArchetypeCatalogFactory getSelectedArchetypeCatalogFactory() {
	IStructuredSelection selection = (IStructuredSelection) archetypesViewer.getSelection();
	return (ArchetypeCatalogFactory) selection.getFirstElement();
	}

	private void addCatalogFactory(ArchetypeCatalogFactory factory) {
	if(factory == null) {
	return;
	}
	archetypeCatalogs.add(factory);
	if(!archetypesViewer.getControl().isDisposed()) {
	archetypesViewer.setInput(archetypeCatalogs);
	archetypesViewer.setChecked(factory, true);
	archetypesViewer.setSelection(new StructuredSelection(factory), true);
	}
	}

	class CatalogsLabelProvider implements ITableLabelProvider, IColorProvider {

	private Color disabledColor = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_GRAY);

	public String getColumnText(Object element, int columnIndex) {
	ArchetypeCatalogFactory factory = (ArchetypeCatalogFactory) element;
	String description = factory.getDescription();
	String text;
	if(factory instanceof LocalCatalogFactory) {
	text = NLS.bind(Messages.MavenArchetypesPreferencePage_local, description);
	} else if(factory instanceof RemoteCatalogFactory) {
	if(factory.isEditable()) {
	text = NLS.bind(Messages.MavenArchetypesPreferencePage_remote, description);
	} else {
	text = NLS.bind(Messages.MavenArchetypesPreferencePage_packaged, description);
	}
	} else {
	text = description;
	}

	return factory.isEditable() ? text : NLS.bind(Messages.MavenArchetypesPreferencePage_SystemLabel, text);
	}

	public Image getColumnImage(Object element, int columnIndex) {
	return null;
	}

	public Color getBackground(Object element) {
	return null;
	}

	public Color getForeground(Object element) {
	return archetypesViewer.getChecked(element) ? null : disabledColor;
	}

	public void dispose() {
	}

	public boolean isLabelProperty(Object element, String property) {
	return false;
	}

	public void addListener(ILabelProviderListener listener) {
	}

	public void removeListener(ILabelProviderListener listener) {
	}

	}

	}