TemplateProvider.java

// Copyright (c) 2006 by Leif Frenzel <himself@leiffrenzel.de>
// All rights reserved.
package net.sf.eclipsefp.haskell.ui.internal.editors.cabal.ca;

import java.io.IOException;
import net.sf.eclipsefp.haskell.ui.HaskellUIPlugin;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.text.templates.ContextTypeRegistry;
import org.eclipse.jface.text.templates.persistence.TemplateStore;
import org.eclipse.ui.editors.text.templates.ContributionContextTypeRegistry;
import org.eclipse.ui.editors.text.templates.ContributionTemplateStore;

/** <p>entry point for access to contributed code assist templates.</p>
  *
  * @author Leif Frenzel
  */
public class TemplateProvider {

  private static final String TEMPLATE_STORE_KEY = "templates"; //$NON-NLS-1$

  private static ContributionContextTypeRegistry contextTypeRegistry;
  private static TemplateStore templateStore;

  public static TemplateStore getTemplateStore() {
    if( templateStore == null ) {
      IPreferenceStore prefs = HaskellUIPlugin.getDefault().getPreferenceStore();
      templateStore = new ContributionTemplateStore( getContextTypeRegistry(),
                                                     prefs,
                                                     TEMPLATE_STORE_KEY );
      try {
        templateStore.load();
      } catch( final IOException ioex ) {
        HaskellUIPlugin.log( "Unable to load templates.", ioex ); //$NON-NLS-1$
      }
    }

    return templateStore;
  }

  public static ContextTypeRegistry getContextTypeRegistry() {
    if( contextTypeRegistry == null ) {
      contextTypeRegistry = new ContributionContextTypeRegistry();
      String key = "cabalPackageDescriptionTemplates"; //$NON-NLS-1$
	  contextTypeRegistry.addContextType( key );
    }
    return contextTypeRegistry;
  }
}