redocs/org.eclipse.statet.redocs.tex.r/src/org/eclipse/statet/internal/redocs/tex/r/RedocsTexRPlugin.java - statet/org.eclipse.statet-r - Git at Google

 /*=============================================================================#
  # Copyright (c) 2007, 2019 Stephan Wahlbrink and others.
  #
  # This program and the accompanying materials are made available under the
  # terms of the Eclipse Public License 2.0 which is available at
  # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
  # which is available at https://www.apache.org/licenses/LICENSE-2.0.
  #
  # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
  #
  # Contributors:
  #     Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation
  #=============================================================================*/

 package org.eclipse.statet.internal.redocs.tex.r;

 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;

 import org.osgi.framework.BundleContext;

 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Plugin;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.resource.ImageRegistry;
 import org.eclipse.jface.text.templates.ContextTypeRegistry;
 import org.eclipse.jface.text.templates.Template;
 import org.eclipse.jface.text.templates.persistence.TemplatePersistenceData;
 import org.eclipse.jface.text.templates.persistence.TemplateStore;
 import org.eclipse.ui.editors.text.EditorsUI;
 import org.eclipse.ui.editors.text.templates.ContributionTemplateStore;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 import org.eclipse.ui.preferences.ScopedPreferenceStore;

 import org.eclipse.statet.jcommons.lang.Disposable;
 import org.eclipse.statet.jcommons.lang.NonNullByDefault;
 import org.eclipse.statet.jcommons.lang.Nullable;

 import org.eclipse.statet.ecommons.ui.util.ImageRegistryUtil;

 import org.eclipse.statet.docmlet.tex.ui.sourceediting.TexEditingSettings;
 import org.eclipse.statet.internal.r.ui.RUIPlugin;
 import org.eclipse.statet.internal.redocs.tex.r.core.LtxRweaveTemplateContextType;
 import org.eclipse.statet.internal.redocs.tex.r.ui.LtxRweaveTemplates;
 import org.eclipse.statet.internal.redocs.tex.r.ui.editors.LtxRweaveDocumentProvider;
 import org.eclipse.statet.ltk.ui.LTKUIPreferences;
 import org.eclipse.statet.ltk.ui.sourceediting.assist.ContentAssistComputerRegistry;
 import org.eclipse.statet.ltk.ui.templates.WaContributionContextTypeRegistry;
 import org.eclipse.statet.ltk.ui.util.CombinedPreferenceStore;
 import org.eclipse.statet.redocs.tex.r.core.TexRweaveCore;
 import org.eclipse.statet.redocs.tex.r.ui.TexRweaveUI;


 /**
  * The activator class controls the plug-in life cycle
  */
 @NonNullByDefault
 public class RedocsTexRPlugin extends AbstractUIPlugin {


 /*- Images --------------------------------------------------------------------*/

 	private static final String NS= "org.eclipse.statet.redocs.tex.r"; //$NON-NLS-1$

 	public static final String OBJ_LTXRWEAVE_IMAGE_ID= NS + "/image/obj/LtxRweave"; //$NON-NLS-1$

 	public static final String TOOL_NEW_LTXRWEAVE_IMAGE_ID= NS + "/image/tool/New-LtxRweave"; //$NON-NLS-1$

 	public static final String WIZBAN_NEW_LTXRWEAVE_FILE_IMAGE_ID= NS + "/image/wizban/New-LtxRweaveFile"; //$NON-NLS-1$

 /*- Prefs ---------------------------------------------------------------------*/

 	public static final String TEX_RWEAVE_EDITOR_NODE= TexRweaveUI.BUNDLE_ID + "/rweavetex.editor/options"; //$NON-NLS-1$


 	private static @Nullable RedocsTexRPlugin instance;

 	/**
 	 * Returns the shared plug-in instance
 	 *
 	 * @return the shared instance
 	 */
 	public static RedocsTexRPlugin getInstance() {
 		return instance;
 	}


 	public static void log(final IStatus status) {
 		final Plugin plugin= getInstance();
 		if (plugin != null) {
 			plugin.getLog().log(status);
 		}
 	}

 	@Deprecated
 	public static void logError(final int code, final String message, final Throwable e) {
 		log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID, code, message, e));
 	}


 	private boolean started;

 	private List<Disposable> disposables;

 	private @Nullable LtxRweaveDocumentProvider docRDocumentProvider;

 	private @Nullable IPreferenceStore editorPreferenceStore;

 	private @Nullable ContextTypeRegistry codegenTemplateContextTypeRegistry;
 	private @Nullable TemplateStore codegenTemplateStore;

 	private @Nullable ContextTypeRegistry docTemplateContextTypeRegistry;
 	private @Nullable TemplateStore docTemplateStore;

 	private @Nullable ContentAssistComputerRegistry ltxRweaveEditorContentAssistRegistry;


 	/**
 	 * The constructor
 	 */
 	public RedocsTexRPlugin() {
 	}

 	@Override
 	public void start(final BundleContext context) throws Exception {
 		super.start(context);
 		instance= this;

 		this.disposables= new ArrayList<>();

 		this.started= true;
 	}


 	@Override
 	public void stop(final BundleContext context) throws Exception {
 		try {
 			synchronized (this) {
 				this.started= false;

 				this.editorPreferenceStore= null;
 				this.codegenTemplateContextTypeRegistry= null;
 				this.codegenTemplateStore= null;
 				this.docTemplateContextTypeRegistry= null;
 				this.docTemplateStore= null;
 				this.ltxRweaveEditorContentAssistRegistry= null;
 			}

 			for (final Disposable listener : this.disposables) {
 				try {
 					listener.dispose();
 				}
 				catch (final Throwable e) {
 					log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID,
 							"Error occured while disposing a module.", //$NON-NLS-1$
 							e ));
 				}
 			}
 			this.disposables= null;
 		}
 		finally {
 			instance= null;
 			super.stop(context);
 		}
 	}


 	@Override
 	protected void initializeImageRegistry(final ImageRegistry reg) {
 		final ImageRegistryUtil util= new ImageRegistryUtil(this);

 		util.register(OBJ_LTXRWEAVE_IMAGE_ID, ImageRegistryUtil.T_OBJ, "ltx_rweave-file.png"); //$NON-NLS-1$

 		util.register(TOOL_NEW_LTXRWEAVE_IMAGE_ID, ImageRegistryUtil.T_TOOL, "new-ltx_rweave-file.png"); //$NON-NLS-1$

 		util.register(WIZBAN_NEW_LTXRWEAVE_FILE_IMAGE_ID, ImageRegistryUtil.T_WIZBAN, "new-ltx_rweave-file.png"); //$NON-NLS-1$
 	}


 	public synchronized LtxRweaveDocumentProvider getDocRDocumentProvider() {
 		LtxRweaveDocumentProvider documentProvider= this.docRDocumentProvider;
 		if (documentProvider == null) {
 			if (!this.started) {
 				throw new IllegalStateException("Plug-in is not started.");
 			}
 			documentProvider= new LtxRweaveDocumentProvider();
 			this.disposables.add(documentProvider);
 			this.docRDocumentProvider= documentProvider;
 		}
 		return documentProvider;
 	}


 	/**
 	 * Returns the template context type registry for the code generation templates.
 	 *
 	 * @return the template context type registry
 	 */
 	public synchronized ContextTypeRegistry getCodegenTemplateContextTypeRegistry() {
 		ContextTypeRegistry templateContextTypeRegistry= this.codegenTemplateContextTypeRegistry;
 		if (templateContextTypeRegistry == null) {
 			if (!this.started) {
 				throw new IllegalStateException("Plug-in is not started.");
 			}
 			templateContextTypeRegistry= new WaContributionContextTypeRegistry(
 					"org.eclipse.statet.redocs.templates.TexRweaveCodegen" ); //$NON-NLS-1$
 			this.codegenTemplateContextTypeRegistry= templateContextTypeRegistry;
 		}
 		return templateContextTypeRegistry;
 	}

 	/**
 	 * Returns the template store for the code generation templates.
 	 *
 	 * @return the template store
 	 */
 	public synchronized TemplateStore getCodegenTemplateStore() {
 		TemplateStore templateStore= this.codegenTemplateStore;
 		if (templateStore == null) {
 			if (!this.started) {
 				throw new IllegalStateException("Plug-in is not started.");
 			}
 			templateStore= new ContributionTemplateStore(
 					getCodegenTemplateContextTypeRegistry(), getPreferenceStore(),
 					"codegen/CodeTemplates_store" ); //$NON-NLS-1$
 			try {
 				templateStore.load();
 			}
 			catch (final IOException e) {
 				log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID,
 						"An error occured when loading 'TeX+R code generation' template store.",
 						e ));
 			}
 			this.codegenTemplateStore= templateStore;
 		}
 		return templateStore;
 	}

 	/**
 	 * Returns the template context type registry for the new documents templates.
 	 *
 	 * @return the template context type registry
 	 */
 	public synchronized ContextTypeRegistry getDocTemplateContextTypeRegistry() {
 		ContextTypeRegistry templateContextTypeRegistry= this.docTemplateContextTypeRegistry;
 		if (templateContextTypeRegistry == null) {
 			if (!this.started) {
 				throw new IllegalStateException("Plug-in is not started.");
 			}
 			templateContextTypeRegistry= new WaContributionContextTypeRegistry(
 					"org.eclipse.statet.redocs.templates.TexRweaveDoc" ); //$NON-NLS-1$
 			this.docTemplateContextTypeRegistry= templateContextTypeRegistry;
 		}
 		return templateContextTypeRegistry;
 	}

 	/**
 	 * Returns the template store for the new documents templates.
 	 *
 	 * @return the template store
 	 */
 	public synchronized TemplateStore getDocTemplateStore() {
 		TemplateStore templateStore= this.docTemplateStore;
 		if (templateStore == null) {
 			if (!this.started) {
 				throw new IllegalStateException("Plug-in is not started.");
 			}

 			final ScopedPreferenceStore prefStore= new ScopedPreferenceStore(
 					InstanceScope.INSTANCE, LtxRweaveTemplates.PREF_QUALIFIER );
 			templateStore= new ContributionTemplateStore(
 					getDocTemplateContextTypeRegistry(), prefStore,
 					LtxRweaveTemplates.DOC_TEMPLATES_STORE_KEY );
 			try {
 				templateStore.load();
 			}
 			catch (final IOException e) {
 				log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID, 0,
 						"An error occured when loading 'Tex+R document' template store.",
 						e ));
 			}
 			this.docTemplateStore= templateStore;

 			if (!prefStore.contains(LtxRweaveTemplates.DOC_TEMPLATES_STORE_KEY)) {
 				migrateDocTemplateStore();
 			}
 		}
 		return templateStore;
 	}

 	private void migrateDocTemplateStore() {
 		final ScopedPreferenceStore oldPrefStore= new ScopedPreferenceStore(
 				InstanceScope.INSTANCE, "org.eclipse.statet.r.sweave" ); //$NON-NLS-1$
 		if (!oldPrefStore.isDefault("org.eclipse.statet.r.sweave.templates.sweavedoc")) { //$NON-NLS-1$
 			try {
 				final TemplateStore oldTemplateStore= new TemplateStore(oldPrefStore,
 						"org.eclipse.statet.r.sweave.templates.sweavedoc" ); //$NON-NLS-1$
 				oldTemplateStore.load();
 				final TemplatePersistenceData[] templateDatas= oldTemplateStore.getTemplateData(false);
 				for (final TemplatePersistenceData templateData : templateDatas) {
 					if (templateData.isEnabled()) {
 						final Template template= templateData.getTemplate();
 						if (template.getContextTypeId().equals("ltx-rweave_NewSweaveDoc")) { //$NON-NLS-1$
 							if (template.getName().startsWith("ltx-rweave.NewDoc:") ) { //$NON-NLS-1$
 								final String templateName= template.getName().substring(18);
 								final Template newTemplate= new Template(
 										LtxRweaveTemplates.NEWDOC_TEMPLATE_CATEGORY_ID + ':' + templateName,
 										template.getDescription(),
 										LtxRweaveTemplateContextType.NEWDOC_CONTEXTTYPE,
 										template.getPattern(), false );
 								final TemplatePersistenceData defaultData= this.docTemplateStore.getTemplateData(
 										"org.eclipse.statet.redocs.templates.LtxRweave_" + templateName + "Doc" ); //$NON-NLS-1$ //$NON-NLS-2$
 								if (defaultData != null) {
 									defaultData.setTemplate(newTemplate);
 								}
 								else {
 									this.docTemplateStore.add(
 											new TemplatePersistenceData(newTemplate, true) );
 								}
 							}
 						}
 					}
 				}
 				this.docTemplateStore.save();
 			}
 			catch (final Exception e) {
 				log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID, 0,
 						"An error occurred while migrating old 'Tex+R document' template store.",
 						e ));
 			}
 		}
 	}


 	public synchronized IPreferenceStore getEditorPreferenceStore() {
 		IPreferenceStore preferenceStore= this.editorPreferenceStore;
 		if (preferenceStore == null) {
 			if (!this.started) {
 				throw new IllegalStateException("Plug-in is not started.");
 			}
 			preferenceStore= CombinedPreferenceStore.createStore(
 					getPreferenceStore(),
 					TexEditingSettings.getPreferenceStore(),
 					RUIPlugin.getInstance().getPreferenceStore(),
 					LTKUIPreferences.getPreferenceStore(),
 					EditorsUI.getPreferenceStore() );
 			this.editorPreferenceStore= preferenceStore;
 		}
 		return preferenceStore;
 	}

 	/** Only used for chunk */
 	public synchronized ContentAssistComputerRegistry getLtxRweaveEditorContentAssistRegistry() {
 		ContentAssistComputerRegistry contentAssistRegistry= this.ltxRweaveEditorContentAssistRegistry;
 		if (contentAssistRegistry == null) {
 			if (!this.started) {
 				throw new IllegalStateException("Plug-in is not started.");
 			}
 			contentAssistRegistry= new ContentAssistComputerRegistry(
 					TexRweaveCore.LTX_R_CONTENT_ID,
 					TEX_RWEAVE_EDITOR_NODE );
 			this.disposables.add(contentAssistRegistry);
 			this.ltxRweaveEditorContentAssistRegistry= contentAssistRegistry;
 		}
 		return contentAssistRegistry;
 	}

 }
	/*=============================================================================#
	# Copyright (c) 2007, 2019 Stephan Wahlbrink and others.
	#
	# This program and the accompanying materials are made available under the
	# terms of the Eclipse Public License 2.0 which is available at
	# https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
	# which is available at https://www.apache.org/licenses/LICENSE-2.0.
	#
	# SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
	#
	# Contributors:
	# Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation
	#=============================================================================*/

	package org.eclipse.statet.internal.redocs.tex.r;

	import java.io.IOException;
	import java.util.ArrayList;
	import java.util.List;

	import org.osgi.framework.BundleContext;

	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Plugin;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.core.runtime.preferences.InstanceScope;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.resource.ImageRegistry;
	import org.eclipse.jface.text.templates.ContextTypeRegistry;
	import org.eclipse.jface.text.templates.Template;
	import org.eclipse.jface.text.templates.persistence.TemplatePersistenceData;
	import org.eclipse.jface.text.templates.persistence.TemplateStore;
	import org.eclipse.ui.editors.text.EditorsUI;
	import org.eclipse.ui.editors.text.templates.ContributionTemplateStore;
	import org.eclipse.ui.plugin.AbstractUIPlugin;
	import org.eclipse.ui.preferences.ScopedPreferenceStore;

	import org.eclipse.statet.jcommons.lang.Disposable;
	import org.eclipse.statet.jcommons.lang.NonNullByDefault;
	import org.eclipse.statet.jcommons.lang.Nullable;

	import org.eclipse.statet.ecommons.ui.util.ImageRegistryUtil;

	import org.eclipse.statet.docmlet.tex.ui.sourceediting.TexEditingSettings;
	import org.eclipse.statet.internal.r.ui.RUIPlugin;
	import org.eclipse.statet.internal.redocs.tex.r.core.LtxRweaveTemplateContextType;
	import org.eclipse.statet.internal.redocs.tex.r.ui.LtxRweaveTemplates;
	import org.eclipse.statet.internal.redocs.tex.r.ui.editors.LtxRweaveDocumentProvider;
	import org.eclipse.statet.ltk.ui.LTKUIPreferences;
	import org.eclipse.statet.ltk.ui.sourceediting.assist.ContentAssistComputerRegistry;
	import org.eclipse.statet.ltk.ui.templates.WaContributionContextTypeRegistry;
	import org.eclipse.statet.ltk.ui.util.CombinedPreferenceStore;
	import org.eclipse.statet.redocs.tex.r.core.TexRweaveCore;
	import org.eclipse.statet.redocs.tex.r.ui.TexRweaveUI;


	/**
	* The activator class controls the plug-in life cycle
	*/
	@NonNullByDefault
	public class RedocsTexRPlugin extends AbstractUIPlugin {


	/- Images --------------------------------------------------------------------/

	private static final String NS= "org.eclipse.statet.redocs.tex.r"; //$NON-NLS-1$

	public static final String OBJ_LTXRWEAVE_IMAGE_ID= NS + "/image/obj/LtxRweave"; //$NON-NLS-1$

	public static final String TOOL_NEW_LTXRWEAVE_IMAGE_ID= NS + "/image/tool/New-LtxRweave"; //$NON-NLS-1$

	public static final String WIZBAN_NEW_LTXRWEAVE_FILE_IMAGE_ID= NS + "/image/wizban/New-LtxRweaveFile"; //$NON-NLS-1$

	/- Prefs ---------------------------------------------------------------------/

	public static final String TEX_RWEAVE_EDITOR_NODE= TexRweaveUI.BUNDLE_ID + "/rweavetex.editor/options"; //$NON-NLS-1$


	private static @Nullable RedocsTexRPlugin instance;

	/**
	* Returns the shared plug-in instance
	*
	* @return the shared instance
	*/
	public static RedocsTexRPlugin getInstance() {
	return instance;
	}


	public static void log(final IStatus status) {
	final Plugin plugin= getInstance();
	if (plugin != null) {
	plugin.getLog().log(status);
	}
	}

	@Deprecated
	public static void logError(final int code, final String message, final Throwable e) {
	log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID, code, message, e));
	}


	private boolean started;

	private List<Disposable> disposables;

	private @Nullable LtxRweaveDocumentProvider docRDocumentProvider;

	private @Nullable IPreferenceStore editorPreferenceStore;

	private @Nullable ContextTypeRegistry codegenTemplateContextTypeRegistry;
	private @Nullable TemplateStore codegenTemplateStore;

	private @Nullable ContextTypeRegistry docTemplateContextTypeRegistry;
	private @Nullable TemplateStore docTemplateStore;

	private @Nullable ContentAssistComputerRegistry ltxRweaveEditorContentAssistRegistry;


	/**
	* The constructor
	*/
	public RedocsTexRPlugin() {
	}

	@Override
	public void start(final BundleContext context) throws Exception {
	super.start(context);
	instance= this;

	this.disposables= new ArrayList<>();

	this.started= true;
	}


	@Override
	public void stop(final BundleContext context) throws Exception {
	try {
	synchronized (this) {
	this.started= false;

	this.editorPreferenceStore= null;
	this.codegenTemplateContextTypeRegistry= null;
	this.codegenTemplateStore= null;
	this.docTemplateContextTypeRegistry= null;
	this.docTemplateStore= null;
	this.ltxRweaveEditorContentAssistRegistry= null;
	}

	for (final Disposable listener : this.disposables) {
	try {
	listener.dispose();
	}
	catch (final Throwable e) {
	log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID,
	"Error occured while disposing a module.", //$NON-NLS-1$
	e ));
	}
	}
	this.disposables= null;
	}
	finally {
	instance= null;
	super.stop(context);
	}
	}


	@Override
	protected void initializeImageRegistry(final ImageRegistry reg) {
	final ImageRegistryUtil util= new ImageRegistryUtil(this);

	util.register(OBJ_LTXRWEAVE_IMAGE_ID, ImageRegistryUtil.T_OBJ, "ltx_rweave-file.png"); //$NON-NLS-1$

	util.register(TOOL_NEW_LTXRWEAVE_IMAGE_ID, ImageRegistryUtil.T_TOOL, "new-ltx_rweave-file.png"); //$NON-NLS-1$

	util.register(WIZBAN_NEW_LTXRWEAVE_FILE_IMAGE_ID, ImageRegistryUtil.T_WIZBAN, "new-ltx_rweave-file.png"); //$NON-NLS-1$
	}


	public synchronized LtxRweaveDocumentProvider getDocRDocumentProvider() {
	LtxRweaveDocumentProvider documentProvider= this.docRDocumentProvider;
	if (documentProvider == null) {
	if (!this.started) {
	throw new IllegalStateException("Plug-in is not started.");
	}
	documentProvider= new LtxRweaveDocumentProvider();
	this.disposables.add(documentProvider);
	this.docRDocumentProvider= documentProvider;
	}
	return documentProvider;
	}


	/**
	* Returns the template context type registry for the code generation templates.
	*
	* @return the template context type registry
	*/
	public synchronized ContextTypeRegistry getCodegenTemplateContextTypeRegistry() {
	ContextTypeRegistry templateContextTypeRegistry= this.codegenTemplateContextTypeRegistry;
	if (templateContextTypeRegistry == null) {
	if (!this.started) {
	throw new IllegalStateException("Plug-in is not started.");
	}
	templateContextTypeRegistry= new WaContributionContextTypeRegistry(
	"org.eclipse.statet.redocs.templates.TexRweaveCodegen" ); //$NON-NLS-1$
	this.codegenTemplateContextTypeRegistry= templateContextTypeRegistry;
	}
	return templateContextTypeRegistry;
	}

	/**
	* Returns the template store for the code generation templates.
	*
	* @return the template store
	*/
	public synchronized TemplateStore getCodegenTemplateStore() {
	TemplateStore templateStore= this.codegenTemplateStore;
	if (templateStore == null) {
	if (!this.started) {
	throw new IllegalStateException("Plug-in is not started.");
	}
	templateStore= new ContributionTemplateStore(
	getCodegenTemplateContextTypeRegistry(), getPreferenceStore(),
	"codegen/CodeTemplates_store" ); //$NON-NLS-1$
	try {
	templateStore.load();
	}
	catch (final IOException e) {
	log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID,
	"An error occured when loading 'TeX+R code generation' template store.",
	e ));
	}
	this.codegenTemplateStore= templateStore;
	}
	return templateStore;
	}

	/**
	* Returns the template context type registry for the new documents templates.
	*
	* @return the template context type registry
	*/
	public synchronized ContextTypeRegistry getDocTemplateContextTypeRegistry() {
	ContextTypeRegistry templateContextTypeRegistry= this.docTemplateContextTypeRegistry;
	if (templateContextTypeRegistry == null) {
	if (!this.started) {
	throw new IllegalStateException("Plug-in is not started.");
	}
	templateContextTypeRegistry= new WaContributionContextTypeRegistry(
	"org.eclipse.statet.redocs.templates.TexRweaveDoc" ); //$NON-NLS-1$
	this.docTemplateContextTypeRegistry= templateContextTypeRegistry;
	}
	return templateContextTypeRegistry;
	}

	/**
	* Returns the template store for the new documents templates.
	*
	* @return the template store
	*/
	public synchronized TemplateStore getDocTemplateStore() {
	TemplateStore templateStore= this.docTemplateStore;
	if (templateStore == null) {
	if (!this.started) {
	throw new IllegalStateException("Plug-in is not started.");
	}

	final ScopedPreferenceStore prefStore= new ScopedPreferenceStore(
	InstanceScope.INSTANCE, LtxRweaveTemplates.PREF_QUALIFIER );
	templateStore= new ContributionTemplateStore(
	getDocTemplateContextTypeRegistry(), prefStore,
	LtxRweaveTemplates.DOC_TEMPLATES_STORE_KEY );
	try {
	templateStore.load();
	}
	catch (final IOException e) {
	log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID, 0,
	"An error occured when loading 'Tex+R document' template store.",
	e ));
	}
	this.docTemplateStore= templateStore;

	if (!prefStore.contains(LtxRweaveTemplates.DOC_TEMPLATES_STORE_KEY)) {
	migrateDocTemplateStore();
	}
	}
	return templateStore;
	}

	private void migrateDocTemplateStore() {
	final ScopedPreferenceStore oldPrefStore= new ScopedPreferenceStore(
	InstanceScope.INSTANCE, "org.eclipse.statet.r.sweave" ); //$NON-NLS-1$
	if (!oldPrefStore.isDefault("org.eclipse.statet.r.sweave.templates.sweavedoc")) { //$NON-NLS-1$
	try {
	final TemplateStore oldTemplateStore= new TemplateStore(oldPrefStore,
	"org.eclipse.statet.r.sweave.templates.sweavedoc" ); //$NON-NLS-1$
	oldTemplateStore.load();
	final TemplatePersistenceData[] templateDatas= oldTemplateStore.getTemplateData(false);
	for (final TemplatePersistenceData templateData : templateDatas) {
	if (templateData.isEnabled()) {
	final Template template= templateData.getTemplate();
	if (template.getContextTypeId().equals("ltx-rweave_NewSweaveDoc")) { //$NON-NLS-1$
	if (template.getName().startsWith("ltx-rweave.NewDoc:") ) { //$NON-NLS-1$
	final String templateName= template.getName().substring(18);
	final Template newTemplate= new Template(
	LtxRweaveTemplates.NEWDOC_TEMPLATE_CATEGORY_ID + ':' + templateName,
	template.getDescription(),
	LtxRweaveTemplateContextType.NEWDOC_CONTEXTTYPE,
	template.getPattern(), false );
	final TemplatePersistenceData defaultData= this.docTemplateStore.getTemplateData(
	"org.eclipse.statet.redocs.templates.LtxRweave_" + templateName + "Doc" ); //$NON-NLS-1$ //$NON-NLS-2$
	if (defaultData != null) {
	defaultData.setTemplate(newTemplate);
	}
	else {
	this.docTemplateStore.add(
	new TemplatePersistenceData(newTemplate, true) );
	}
	}
	}
	}
	}
	this.docTemplateStore.save();
	}
	catch (final Exception e) {
	log(new Status(IStatus.ERROR, TexRweaveUI.BUNDLE_ID, 0,
	"An error occurred while migrating old 'Tex+R document' template store.",
	e ));
	}
	}
	}


	public synchronized IPreferenceStore getEditorPreferenceStore() {
	IPreferenceStore preferenceStore= this.editorPreferenceStore;
	if (preferenceStore == null) {
	if (!this.started) {
	throw new IllegalStateException("Plug-in is not started.");
	}
	preferenceStore= CombinedPreferenceStore.createStore(
	getPreferenceStore(),
	TexEditingSettings.getPreferenceStore(),
	RUIPlugin.getInstance().getPreferenceStore(),
	LTKUIPreferences.getPreferenceStore(),
	EditorsUI.getPreferenceStore() );
	this.editorPreferenceStore= preferenceStore;
	}
	return preferenceStore;
	}

	/** Only used for chunk */
	public synchronized ContentAssistComputerRegistry getLtxRweaveEditorContentAssistRegistry() {
	ContentAssistComputerRegistry contentAssistRegistry= this.ltxRweaveEditorContentAssistRegistry;
	if (contentAssistRegistry == null) {
	if (!this.started) {
	throw new IllegalStateException("Plug-in is not started.");
	}
	contentAssistRegistry= new ContentAssistComputerRegistry(
	TexRweaveCore.LTX_R_CONTENT_ID,
	TEX_RWEAVE_EDITOR_NODE );
	this.disposables.add(contentAssistRegistry);
	this.ltxRweaveEditorContentAssistRegistry= contentAssistRegistry;
	}
	return contentAssistRegistry;
	}

	}