org.eclipse.mylyn.java.ui/src/org/eclipse/mylyn/internal/java/ui/JavaUiBridgePlugin.java - gerrit/mylyn/org.eclipse.mylyn.context - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2013 Tasktop Technologies and others.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * https://www.eclipse.org/legal/epl-2.0
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  *     Tasktop Technologies - initial API and implementation
  *******************************************************************************/

 package org.eclipse.mylyn.internal.java.ui;

 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.jdt.core.JavaCore;
 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
 import org.eclipse.jdt.ui.PreferenceConstants;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.mylyn.commons.core.StatusHandler;
 import org.eclipse.mylyn.context.core.ContextCore;
 import org.eclipse.mylyn.context.ui.IContextUiStartup;
 import org.eclipse.mylyn.internal.java.ui.editor.ActiveFoldingListener;
 import org.eclipse.mylyn.internal.java.ui.editor.BreakpointEditorTracker;
 import org.eclipse.mylyn.monitor.ui.MonitorUi;
 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IEditorReference;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 import org.eclipse.ui.progress.UIJob;
 import org.osgi.framework.BundleContext;

 /**
  * @author Mik Kersten
  * @author Steffen Pingel
  */
 public class JavaUiBridgePlugin extends AbstractUIPlugin {

 	public static final String ID_PLUGIN = "org.eclipse.mylyn.java.ui"; //$NON-NLS-1$

 	public static final String AUTO_FOLDING_ENABLED = "org.eclipse.mylyn.context.ui.editor.folding.enabled"; //$NON-NLS-1$

 	private static JavaUiBridgePlugin INSTANCE;

 	private ActiveFoldingEditorTracker editorTracker;

 	private TypeHistoryManager typeHistoryManager;

 	private LandmarkMarkerManager landmarkMarkerManager;

 	private JavaEditingMonitor javaEditingMonitor;

 	private InterestUpdateDeltaListener javaElementChangeListener;

 	private BreakpointEditorTracker breakpointEditorTracker;

 	private static final String MYLYN_PREVIOUS_RUN = "org.eclipse.mylyn.ui.first.run.0_4_9"; //$NON-NLS-1$

 	private static final String MYLYN_RUN_COUNT_3_1 = "org.eclipse.mylyn.java.ui.run.count.3_1_0"; //$NON-NLS-1$

 	private static final String MYLYN_RUN_COUNT_3_10 = "org.eclipse.mylyn.java.ui.run.count.3_10_0"; //$NON-NLS-1$

 	private static final String NUM_COMPUTERS_PREF_KEY = "content_assist_number_of_computers"; //$NON-NLS-1$

 	public JavaUiBridgePlugin() {
 	}

 	/**
 	 * Startup order is critical.
 	 */
 	@Override
 	public void start(BundleContext context) throws Exception {
 		super.start(context);
 		INSTANCE = this;

 		IPreferenceStore javaPrefs = JavaPlugin.getDefault().getPreferenceStore();
 		// NOTE: moved out of wizard and first task activation to avoid bug 194766
 		int count = getPreferenceStore().getInt(MYLYN_RUN_COUNT_3_1);
 		if (count < 1) {
 			getPreferenceStore().setValue(MYLYN_RUN_COUNT_3_1, count + 1);

 			// Mylyn 3.1 removes 2 computers, migrate JDT setting on first run to avoid prevent JDT from displaying a warning dialog
 			if (count == 0 && getPreferenceStore().contains(MYLYN_PREVIOUS_RUN)) {
 				changeProcessorCount(javaPrefs, -2);
 			}

 			// try installing Task-Focused content assist twice
 			new UIJob("Initialize Content Assist") { //$NON-NLS-1$
 				@Override
 				public IStatus runInUIThread(IProgressMonitor monitor) {
 					IPreferenceStore store = JavaPlugin.getDefault().getPreferenceStore();
 					JavaUiUtil.installContentAssist(store, true);
 					return Status.OK_STATUS;
 				}
 			}.schedule();
 		}

 		int count_3_10 = getPreferenceStore().getInt(MYLYN_RUN_COUNT_3_10);
 		if (count_3_10 < 1) {
 			getPreferenceStore().setValue(MYLYN_RUN_COUNT_3_10, count_3_10 + 1);

 			// check that the PDE bridge is installed and we are migrating from a previous version
 			if (Platform.getBundle("org.eclipse.mylyn.pde.ui") != null && count > 0) { //$NON-NLS-1$
 				// Mylyn 3.10 removes 1 computer for PDE API Tooling
 				changeProcessorCount(javaPrefs, -1);
 			}
 		}

 		// the Task-Focused category should be disabled if the user reverts to the default
 		String defaultValue = javaPrefs.getDefaultString(PreferenceConstants.CODEASSIST_EXCLUDED_CATEGORIES);
 		javaPrefs.setDefault(PreferenceConstants.CODEASSIST_EXCLUDED_CATEGORIES, defaultValue
 				+ JavaUiUtil.ASSIST_MYLYN_ALL + JavaUiUtil.SEPARATOR_CODEASSIST);
 	}

 	public void changeProcessorCount(IPreferenceStore javaPrefs, int delta) {
 		if (javaPrefs.contains(NUM_COMPUTERS_PREF_KEY)) {
 			int lastNumberOfComputers = javaPrefs.getInt(NUM_COMPUTERS_PREF_KEY);
 			if (lastNumberOfComputers > 0) {
 				javaPrefs.putValue(NUM_COMPUTERS_PREF_KEY, Integer.toString(lastNumberOfComputers + delta));
 			}
 		}
 	}

 	private void lazyStart() {
 		landmarkMarkerManager = new LandmarkMarkerManager();
 		ContextCore.getContextManager().addListener(landmarkMarkerManager);

 		javaEditingMonitor = new JavaEditingMonitor();
 		MonitorUi.getSelectionMonitors().add(javaEditingMonitor);
 		installEditorTracker(PlatformUI.getWorkbench());

 		javaElementChangeListener = new InterestUpdateDeltaListener();
 		JavaCore.addElementChangedListener(javaElementChangeListener);

 		try {
 			typeHistoryManager = new TypeHistoryManager();
 			ContextCore.getContextManager().addListener(typeHistoryManager);
 		} catch (Throwable t) {
 			// FIXME review error message
 			StatusHandler.log(new Status(IStatus.ERROR, JavaUiBridgePlugin.ID_PLUGIN,
 					"Could not install type history manager: incompatible Eclipse version", t)); //$NON-NLS-1$
 		}

 		breakpointEditorTracker = new BreakpointEditorTracker();
 		breakpointEditorTracker.install(PlatformUI.getWorkbench());
 	}

 	private void lazyStop() {
 		if (typeHistoryManager != null) {
 			ContextCore.getContextManager().removeListener(typeHistoryManager);
 		}
 		if (landmarkMarkerManager != null) {
 			ContextCore.getContextManager().removeListener(landmarkMarkerManager);
 		}
 		if (javaEditingMonitor != null) {
 			MonitorUi.getSelectionMonitors().remove(javaEditingMonitor);
 		}
 		if (javaElementChangeListener != null) {
 			JavaCore.removeElementChangedListener(javaElementChangeListener);
 		}
 		if (breakpointEditorTracker != null) {
 			breakpointEditorTracker.dispose(PlatformUI.getWorkbench());
 		}
 		// TODO: uninstall editor tracker
 	}

 	@Override
 	public void stop(BundleContext context) throws Exception {
 		lazyStop();

 		super.stop(context);
 		INSTANCE = null;
 	}

 	private void installEditorTracker(IWorkbench workbench) {
 		editorTracker = new ActiveFoldingEditorTracker();
 		editorTracker.install(workbench);

 		// update editors that are already opened
 		for (IWorkbenchWindow w : PlatformUI.getWorkbench().getWorkbenchWindows()) {
 			IWorkbenchPage page = w.getActivePage();
 			if (page != null) {
 				IEditorReference[] references = page.getEditorReferences();
 				for (IEditorReference reference : references) {
 					IEditorPart part = reference.getEditor(false);
 					if (part != null && part instanceof JavaEditor) {
 						JavaEditor editor = (JavaEditor) part;
 						editorTracker.registerEditor(editor);
 						ActiveFoldingListener.resetProjection(editor);
 					}
 				}
 			}
 		}
 	}

 	/**
 	 * Returns the shared instance.
 	 */
 	public static JavaUiBridgePlugin getDefault() {
 		return INSTANCE;
 	}

 	/**
 	 * Returns an image descriptor for the image file at the given plug-in relative path.
 	 *
 	 * @param path
 	 *            the path
 	 * @return the image descriptor
 	 */
 	public static ImageDescriptor getImageDescriptor(String path) {
 		return AbstractUIPlugin.imageDescriptorFromPlugin(ID_PLUGIN, path);
 	}

 	/**
 	 * For testing.
 	 */
 	public ActiveFoldingEditorTracker getEditorTracker() {
 		return editorTracker;
 	}

 	public static class JavaUiBridgeStartup implements IContextUiStartup {

 		public void lazyStartup() {
 			JavaUiBridgePlugin.getDefault().lazyStart();
 		}

 	}

 }
	/*******************************************************************************
	* Copyright (c) 2004, 2013 Tasktop Technologies and others.
	*
	* This program and the accompanying materials are made available under the
	* terms of the Eclipse Public License v. 2.0 which is available at
	* https://www.eclipse.org/legal/epl-2.0
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Tasktop Technologies - initial API and implementation
	*******************************************************************************/

	package org.eclipse.mylyn.internal.java.ui;

	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.jdt.core.JavaCore;
	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
	import org.eclipse.jdt.ui.PreferenceConstants;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.mylyn.commons.core.StatusHandler;
	import org.eclipse.mylyn.context.core.ContextCore;
	import org.eclipse.mylyn.context.ui.IContextUiStartup;
	import org.eclipse.mylyn.internal.java.ui.editor.ActiveFoldingListener;
	import org.eclipse.mylyn.internal.java.ui.editor.BreakpointEditorTracker;
	import org.eclipse.mylyn.monitor.ui.MonitorUi;
	import org.eclipse.ui.IEditorPart;
	import org.eclipse.ui.IEditorReference;
	import org.eclipse.ui.IWorkbench;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.IWorkbenchWindow;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.plugin.AbstractUIPlugin;
	import org.eclipse.ui.progress.UIJob;
	import org.osgi.framework.BundleContext;

	/**
	* @author Mik Kersten
	* @author Steffen Pingel
	*/
	public class JavaUiBridgePlugin extends AbstractUIPlugin {

	public static final String ID_PLUGIN = "org.eclipse.mylyn.java.ui"; //$NON-NLS-1$

	public static final String AUTO_FOLDING_ENABLED = "org.eclipse.mylyn.context.ui.editor.folding.enabled"; //$NON-NLS-1$

	private static JavaUiBridgePlugin INSTANCE;

	private ActiveFoldingEditorTracker editorTracker;

	private TypeHistoryManager typeHistoryManager;

	private LandmarkMarkerManager landmarkMarkerManager;

	private JavaEditingMonitor javaEditingMonitor;

	private InterestUpdateDeltaListener javaElementChangeListener;

	private BreakpointEditorTracker breakpointEditorTracker;

	private static final String MYLYN_PREVIOUS_RUN = "org.eclipse.mylyn.ui.first.run.0_4_9"; //$NON-NLS-1$

	private static final String MYLYN_RUN_COUNT_3_1 = "org.eclipse.mylyn.java.ui.run.count.3_1_0"; //$NON-NLS-1$

	private static final String MYLYN_RUN_COUNT_3_10 = "org.eclipse.mylyn.java.ui.run.count.3_10_0"; //$NON-NLS-1$

	private static final String NUM_COMPUTERS_PREF_KEY = "content_assist_number_of_computers"; //$NON-NLS-1$

	public JavaUiBridgePlugin() {
	}

	/**
	* Startup order is critical.
	*/
	@Override
	public void start(BundleContext context) throws Exception {
	super.start(context);
	INSTANCE = this;

	IPreferenceStore javaPrefs = JavaPlugin.getDefault().getPreferenceStore();
	// NOTE: moved out of wizard and first task activation to avoid bug 194766
	int count = getPreferenceStore().getInt(MYLYN_RUN_COUNT_3_1);
	if (count < 1) {
	getPreferenceStore().setValue(MYLYN_RUN_COUNT_3_1, count + 1);

	// Mylyn 3.1 removes 2 computers, migrate JDT setting on first run to avoid prevent JDT from displaying a warning dialog
	if (count == 0 && getPreferenceStore().contains(MYLYN_PREVIOUS_RUN)) {
	changeProcessorCount(javaPrefs, -2);
	}

	// try installing Task-Focused content assist twice
	new UIJob("Initialize Content Assist") { //$NON-NLS-1$
	@Override
	public IStatus runInUIThread(IProgressMonitor monitor) {
	IPreferenceStore store = JavaPlugin.getDefault().getPreferenceStore();
	JavaUiUtil.installContentAssist(store, true);
	return Status.OK_STATUS;
	}
	}.schedule();
	}

	int count_3_10 = getPreferenceStore().getInt(MYLYN_RUN_COUNT_3_10);
	if (count_3_10 < 1) {
	getPreferenceStore().setValue(MYLYN_RUN_COUNT_3_10, count_3_10 + 1);

	// check that the PDE bridge is installed and we are migrating from a previous version
	if (Platform.getBundle("org.eclipse.mylyn.pde.ui") != null && count > 0) { //$NON-NLS-1$
	// Mylyn 3.10 removes 1 computer for PDE API Tooling
	changeProcessorCount(javaPrefs, -1);
	}
	}

	// the Task-Focused category should be disabled if the user reverts to the default
	String defaultValue = javaPrefs.getDefaultString(PreferenceConstants.CODEASSIST_EXCLUDED_CATEGORIES);
	javaPrefs.setDefault(PreferenceConstants.CODEASSIST_EXCLUDED_CATEGORIES, defaultValue
	+ JavaUiUtil.ASSIST_MYLYN_ALL + JavaUiUtil.SEPARATOR_CODEASSIST);
	}

	public void changeProcessorCount(IPreferenceStore javaPrefs, int delta) {
	if (javaPrefs.contains(NUM_COMPUTERS_PREF_KEY)) {
	int lastNumberOfComputers = javaPrefs.getInt(NUM_COMPUTERS_PREF_KEY);
	if (lastNumberOfComputers > 0) {
	javaPrefs.putValue(NUM_COMPUTERS_PREF_KEY, Integer.toString(lastNumberOfComputers + delta));
	}
	}
	}

	private void lazyStart() {
	landmarkMarkerManager = new LandmarkMarkerManager();
	ContextCore.getContextManager().addListener(landmarkMarkerManager);

	javaEditingMonitor = new JavaEditingMonitor();
	MonitorUi.getSelectionMonitors().add(javaEditingMonitor);
	installEditorTracker(PlatformUI.getWorkbench());

	javaElementChangeListener = new InterestUpdateDeltaListener();
	JavaCore.addElementChangedListener(javaElementChangeListener);

	try {
	typeHistoryManager = new TypeHistoryManager();
	ContextCore.getContextManager().addListener(typeHistoryManager);
	} catch (Throwable t) {
	// FIXME review error message
	StatusHandler.log(new Status(IStatus.ERROR, JavaUiBridgePlugin.ID_PLUGIN,
	"Could not install type history manager: incompatible Eclipse version", t)); //$NON-NLS-1$
	}

	breakpointEditorTracker = new BreakpointEditorTracker();
	breakpointEditorTracker.install(PlatformUI.getWorkbench());
	}

	private void lazyStop() {
	if (typeHistoryManager != null) {
	ContextCore.getContextManager().removeListener(typeHistoryManager);
	}
	if (landmarkMarkerManager != null) {
	ContextCore.getContextManager().removeListener(landmarkMarkerManager);
	}
	if (javaEditingMonitor != null) {
	MonitorUi.getSelectionMonitors().remove(javaEditingMonitor);
	}
	if (javaElementChangeListener != null) {
	JavaCore.removeElementChangedListener(javaElementChangeListener);
	}
	if (breakpointEditorTracker != null) {
	breakpointEditorTracker.dispose(PlatformUI.getWorkbench());
	}
	// TODO: uninstall editor tracker
	}

	@Override
	public void stop(BundleContext context) throws Exception {
	lazyStop();

	super.stop(context);
	INSTANCE = null;
	}

	private void installEditorTracker(IWorkbench workbench) {
	editorTracker = new ActiveFoldingEditorTracker();
	editorTracker.install(workbench);

	// update editors that are already opened
	for (IWorkbenchWindow w : PlatformUI.getWorkbench().getWorkbenchWindows()) {
	IWorkbenchPage page = w.getActivePage();
	if (page != null) {
	IEditorReference[] references = page.getEditorReferences();
	for (IEditorReference reference : references) {
	IEditorPart part = reference.getEditor(false);
	if (part != null && part instanceof JavaEditor) {
	JavaEditor editor = (JavaEditor) part;
	editorTracker.registerEditor(editor);
	ActiveFoldingListener.resetProjection(editor);
	}
	}
	}
	}
	}

	/**
	* Returns the shared instance.
	*/
	public static JavaUiBridgePlugin getDefault() {
	return INSTANCE;
	}

	/**
	* Returns an image descriptor for the image file at the given plug-in relative path.
	*
	* @param path
	* the path
	* @return the image descriptor
	*/
	public static ImageDescriptor getImageDescriptor(String path) {
	return AbstractUIPlugin.imageDescriptorFromPlugin(ID_PLUGIN, path);
	}

	/**
	* For testing.
	*/
	public ActiveFoldingEditorTracker getEditorTracker() {
	return editorTracker;
	}

	public static class JavaUiBridgeStartup implements IContextUiStartup {

	public void lazyStartup() {
	JavaUiBridgePlugin.getDefault().lazyStart();
	}

	}

	}