org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/classpath/RuntimeClasspathViewer.java - jdt/eclipse.jdt.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2014 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.debug.ui.classpath;

 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.core.runtime.ListenerList;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences.IPreferenceChangeListener;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences.PreferenceChangeEvent;
 import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.internal.ui.DebugUIPlugin;
 import org.eclipse.jdt.internal.debug.ui.actions.RuntimeClasspathAction;
 import org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer;
 import org.eclipse.jdt.internal.debug.ui.launcher.IEntriesChangedListener;
 import org.eclipse.jdt.internal.launching.LaunchingPlugin;
 import org.eclipse.jdt.launching.IRuntimeClasspathEntry;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Shell;

 /**
  * A viewer that displays and manipulates runtime classpath entries.
  */
 public class RuntimeClasspathViewer extends TreeViewer implements IClasspathViewer {

 	/**
 	 * Entry changed listeners
 	 */
 	private ListenerList fListeners = new ListenerList();

 	private IClasspathEntry fCurrentParent= null;

 	private IPreferenceChangeListener fPrefListeners = new IPreferenceChangeListener() {

 		public void preferenceChange(PreferenceChangeEvent event) {
 			if (DebugUIPlugin.getStandardDisplay().getThread().equals(Thread.currentThread())) {
 				refresh(true);
 			} else {
 				DebugUIPlugin.getStandardDisplay().syncExec(new Runnable() {
 					public void run() {
 						refresh(true);
 					}
 				});
 			}

 		}
 	};

 	/**
 	 * Creates a runtime classpath viewer with the given parent.
 	 *
 	 * @param parent the parent control
 	 */
 	public RuntimeClasspathViewer(Composite parent) {
 		super(parent);

 		GridData data = new GridData(GridData.FILL_BOTH);
 		data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
 		data.heightHint = getTree().getItemHeight();
 		getTree().setLayoutData(data);

 		getTree().addKeyListener(new KeyAdapter() {
 			@Override
 			public void keyPressed(KeyEvent event) {
 				if (updateSelection(RuntimeClasspathAction.REMOVE, (IStructuredSelection)getSelection()) && event.character == SWT.DEL && event.stateMask == 0) {
 					List<?> selection= getSelectionFromWidget();
 					getClasspathContentProvider().removeAll(selection);
 					notifyChanged();
 				}
 			}
 		});
 		getTree().addDisposeListener(new DisposeListener() {
 			public void widgetDisposed(DisposeEvent e) {
 				IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
 				if(prefs != null) {
 					prefs.removePreferenceChangeListener(fPrefListeners);
 				}
 			}
 		});
 		IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
 		if(prefs != null) {
 			prefs.addPreferenceChangeListener(fPrefListeners);
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#setEntries(org.eclipse.jdt.launching.IRuntimeClasspathEntry[])
 	 */
 	public void setEntries(IRuntimeClasspathEntry[] entries) {
 		getClasspathContentProvider().setRefreshEnabled(false);
 		resolveCurrentParent(getSelection());
 		getClasspathContentProvider().removeAll(fCurrentParent);
 		getClasspathContentProvider().setEntries(entries);
 		getClasspathContentProvider().setRefreshEnabled(true);
 		notifyChanged();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getEntries()
 	 */
 	public IRuntimeClasspathEntry[] getEntries() {
 		return getClasspathContentProvider().getModel().getAllEntries();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#addEntries(org.eclipse.jdt.launching.IRuntimeClasspathEntry[])
 	 */
 	public void addEntries(IRuntimeClasspathEntry[] entries) {
 		getClasspathContentProvider().setRefreshEnabled(false);
 		IStructuredSelection sel = (IStructuredSelection) getSelection();
 		Object beforeElement = sel.getFirstElement();
 		resolveCurrentParent(getSelection());
 		List<IClasspathEntry> existingEntries= Arrays.asList(fCurrentParent.getEntries());
 		for (int i = 0; i < entries.length; i++) {
 			if (!existingEntries.contains(entries[i])) {
 				getClasspathContentProvider().add(fCurrentParent, entries[i], beforeElement);
 			}
 		}
 		getClasspathContentProvider().setRefreshEnabled(true);
 		notifyChanged();
 	}

 	private boolean resolveCurrentParent(ISelection selection) {
 		fCurrentParent= null;
 		Iterator<?> selected= ((IStructuredSelection)selection).iterator();

 		while (selected.hasNext()) {
 			Object element = selected.next();
 			if (element instanceof ClasspathEntry) {
 				IClasspathEntry parent= ((IClasspathEntry)element).getParent();
 				if (fCurrentParent != null) {
 					if (!fCurrentParent.equals(parent)) {
 						return false;
 					}
 				} else {
 					fCurrentParent= parent;
 				}
 			} else {
 				if (fCurrentParent != null) {
 					if (!fCurrentParent.equals(element)) {
 						return false;
 					}
 				} else {
 					fCurrentParent= (IClasspathEntry)element;
 				}
 			}
 		}
 		return true;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#isEnabled()
 	 */
 	public boolean isEnabled() {
 		return true;
 	}

 	/**
 	 * Sets the launch configuration context for this viewer, if any
 	 * @param configuration the backing {@link ILaunchConfiguration}
 	 */
 	public void setLaunchConfiguration(ILaunchConfiguration configuration) {
 		if (getLabelProvider() != null) {
 			((ClasspathLabelProvider)getLabelProvider()).setLaunchConfiguration(configuration);
 		}
 	}

 	public void addEntriesChangedListener(IEntriesChangedListener listener) {
 		fListeners.add(listener);
 	}

 	public void removeEntriesChangedListener(IEntriesChangedListener listener) {
 		fListeners.remove(listener);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#notifyChanged()
 	 */
 	public void notifyChanged() {
 		Object[] listeners = fListeners.getListeners();
 		for (int i = 0; i < listeners.length; i++) {
 			((IEntriesChangedListener)listeners[i]).entriesChanged(this);
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#indexOf(org.eclipse.jdt.launching.IRuntimeClasspathEntry)
 	 */
 	public int indexOf(IRuntimeClasspathEntry entry) {
 		IClasspathEntry[] entries= getClasspathContentProvider().getBootstrapClasspathEntries();
 		for (int i = 0; i < entries.length; i++) {
 			IClasspathEntry existingEntry = entries[i];
 			if (existingEntry.equals(entry)) {
 				return 1;
 			}
 		}
 		entries=  getClasspathContentProvider().getUserClasspathEntries();
 		for (int i = 0; i < entries.length; i++) {
 			IClasspathEntry existingEntry = entries[i];
 			if (existingEntry.equals(entry)) {
 				return 1;
 			}
 		}

 		return -1;

 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getShell()
 	 */
 	public Shell getShell() {
 		return getControl().getShell();
 	}

 	private ClasspathContentProvider getClasspathContentProvider() {
 		return (ClasspathContentProvider)super.getContentProvider();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#updateSelection(int, org.eclipse.jface.viewers.IStructuredSelection)
 	 */
 	public boolean updateSelection(int actionType, IStructuredSelection selection) {

 		if (selection.isEmpty()) {
 			return false;
 		}
 		switch (actionType) {
 			case RuntimeClasspathAction.ADD :
 				Iterator<IClasspathEntry> selected= selection.iterator();
 				while (selected.hasNext()) {
 					IClasspathEntry entry = selected.next();
 					if (!entry.isEditable() && entry instanceof ClasspathEntry) {
 						return false;
 					}
 				}
 				return selection.size() > 0;
 			case RuntimeClasspathAction.REMOVE :
 			case RuntimeClasspathAction.MOVE :
 				selected= selection.iterator();
 				while (selected.hasNext()) {
 					IClasspathEntry entry = selected.next();
 					if (!entry.isEditable()) {
 						return false;
 					}
 				}
 				return selection.size() > 0;
 			default :
 				break;
 		}

 		return true;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getSelectedEntries()
 	 */
 	public ISelection getSelectedEntries() {
 		IStructuredSelection selection= (IStructuredSelection)getSelection();
 		List<IClasspathEntry> entries= new ArrayList<IClasspathEntry>(selection.size() * 2);
 		Iterator<IClasspathEntry> itr= selection.iterator();
 		while (itr.hasNext()) {
 			IClasspathEntry element = itr.next();
 			if (element.hasEntries()) {
 				entries.addAll(Arrays.asList(element.getEntries()));
 			} else {
 				entries.add(element);
 			}
 		}

 		return new StructuredSelection(entries);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2014 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.debug.ui.classpath;

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.core.runtime.ListenerList;
	import org.eclipse.core.runtime.preferences.IEclipsePreferences;
	import org.eclipse.core.runtime.preferences.IEclipsePreferences.IPreferenceChangeListener;
	import org.eclipse.core.runtime.preferences.IEclipsePreferences.PreferenceChangeEvent;
	import org.eclipse.core.runtime.preferences.InstanceScope;
	import org.eclipse.debug.core.ILaunchConfiguration;
	import org.eclipse.debug.internal.ui.DebugUIPlugin;
	import org.eclipse.jdt.internal.debug.ui.actions.RuntimeClasspathAction;
	import org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer;
	import org.eclipse.jdt.internal.debug.ui.launcher.IEntriesChangedListener;
	import org.eclipse.jdt.internal.launching.LaunchingPlugin;
	import org.eclipse.jdt.launching.IRuntimeClasspathEntry;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	import org.eclipse.swt.events.KeyAdapter;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Shell;

	/**
	* A viewer that displays and manipulates runtime classpath entries.
	*/
	public class RuntimeClasspathViewer extends TreeViewer implements IClasspathViewer {

	/**
	* Entry changed listeners
	*/
	private ListenerList fListeners = new ListenerList();

	private IClasspathEntry fCurrentParent= null;

	private IPreferenceChangeListener fPrefListeners = new IPreferenceChangeListener() {

	public void preferenceChange(PreferenceChangeEvent event) {
	if (DebugUIPlugin.getStandardDisplay().getThread().equals(Thread.currentThread())) {
	refresh(true);
	} else {
	DebugUIPlugin.getStandardDisplay().syncExec(new Runnable() {
	public void run() {
	refresh(true);
	}
	});
	}

	}
	};

	/**
	* Creates a runtime classpath viewer with the given parent.
	*
	* @param parent the parent control
	*/
	public RuntimeClasspathViewer(Composite parent) {
	super(parent);

	GridData data = new GridData(GridData.FILL_BOTH);
	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
	data.heightHint = getTree().getItemHeight();
	getTree().setLayoutData(data);

	getTree().addKeyListener(new KeyAdapter() {
	@Override
	public void keyPressed(KeyEvent event) {
	if (updateSelection(RuntimeClasspathAction.REMOVE, (IStructuredSelection)getSelection()) && event.character == SWT.DEL && event.stateMask == 0) {
	List<?> selection= getSelectionFromWidget();
	getClasspathContentProvider().removeAll(selection);
	notifyChanged();
	}
	}
	});
	getTree().addDisposeListener(new DisposeListener() {
	public void widgetDisposed(DisposeEvent e) {
	IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
	if(prefs != null) {
	prefs.removePreferenceChangeListener(fPrefListeners);
	}
	}
	});
	IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN);
	if(prefs != null) {
	prefs.addPreferenceChangeListener(fPrefListeners);
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#setEntries(org.eclipse.jdt.launching.IRuntimeClasspathEntry[])
	*/
	public void setEntries(IRuntimeClasspathEntry[] entries) {
	getClasspathContentProvider().setRefreshEnabled(false);
	resolveCurrentParent(getSelection());
	getClasspathContentProvider().removeAll(fCurrentParent);
	getClasspathContentProvider().setEntries(entries);
	getClasspathContentProvider().setRefreshEnabled(true);
	notifyChanged();
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getEntries()
	*/
	public IRuntimeClasspathEntry[] getEntries() {
	return getClasspathContentProvider().getModel().getAllEntries();
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#addEntries(org.eclipse.jdt.launching.IRuntimeClasspathEntry[])
	*/
	public void addEntries(IRuntimeClasspathEntry[] entries) {
	getClasspathContentProvider().setRefreshEnabled(false);
	IStructuredSelection sel = (IStructuredSelection) getSelection();
	Object beforeElement = sel.getFirstElement();
	resolveCurrentParent(getSelection());
	List<IClasspathEntry> existingEntries= Arrays.asList(fCurrentParent.getEntries());
	for (int i = 0; i < entries.length; i++) {
	if (!existingEntries.contains(entries[i])) {
	getClasspathContentProvider().add(fCurrentParent, entries[i], beforeElement);
	}
	}
	getClasspathContentProvider().setRefreshEnabled(true);
	notifyChanged();
	}

	private boolean resolveCurrentParent(ISelection selection) {
	fCurrentParent= null;
	Iterator<?> selected= ((IStructuredSelection)selection).iterator();

	while (selected.hasNext()) {
	Object element = selected.next();
	if (element instanceof ClasspathEntry) {
	IClasspathEntry parent= ((IClasspathEntry)element).getParent();
	if (fCurrentParent != null) {
	if (!fCurrentParent.equals(parent)) {
	return false;
	}
	} else {
	fCurrentParent= parent;
	}
	} else {
	if (fCurrentParent != null) {
	if (!fCurrentParent.equals(element)) {
	return false;
	}
	} else {
	fCurrentParent= (IClasspathEntry)element;
	}
	}
	}
	return true;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#isEnabled()
	*/
	public boolean isEnabled() {
	return true;
	}

	/**
	* Sets the launch configuration context for this viewer, if any
	* @param configuration the backing {@link ILaunchConfiguration}
	*/
	public void setLaunchConfiguration(ILaunchConfiguration configuration) {
	if (getLabelProvider() != null) {
	((ClasspathLabelProvider)getLabelProvider()).setLaunchConfiguration(configuration);
	}
	}

	public void addEntriesChangedListener(IEntriesChangedListener listener) {
	fListeners.add(listener);
	}

	public void removeEntriesChangedListener(IEntriesChangedListener listener) {
	fListeners.remove(listener);
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#notifyChanged()
	*/
	public void notifyChanged() {
	Object[] listeners = fListeners.getListeners();
	for (int i = 0; i < listeners.length; i++) {
	((IEntriesChangedListener)listeners[i]).entriesChanged(this);
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#indexOf(org.eclipse.jdt.launching.IRuntimeClasspathEntry)
	*/
	public int indexOf(IRuntimeClasspathEntry entry) {
	IClasspathEntry[] entries= getClasspathContentProvider().getBootstrapClasspathEntries();
	for (int i = 0; i < entries.length; i++) {
	IClasspathEntry existingEntry = entries[i];
	if (existingEntry.equals(entry)) {
	return 1;
	}
	}
	entries= getClasspathContentProvider().getUserClasspathEntries();
	for (int i = 0; i < entries.length; i++) {
	IClasspathEntry existingEntry = entries[i];
	if (existingEntry.equals(entry)) {
	return 1;
	}
	}

	return -1;

	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getShell()
	*/
	public Shell getShell() {
	return getControl().getShell();
	}

	private ClasspathContentProvider getClasspathContentProvider() {
	return (ClasspathContentProvider)super.getContentProvider();
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#updateSelection(int, org.eclipse.jface.viewers.IStructuredSelection)
	*/
	public boolean updateSelection(int actionType, IStructuredSelection selection) {

	if (selection.isEmpty()) {
	return false;
	}
	switch (actionType) {
	case RuntimeClasspathAction.ADD :
	Iterator<IClasspathEntry> selected= selection.iterator();
	while (selected.hasNext()) {
	IClasspathEntry entry = selected.next();
	if (!entry.isEditable() && entry instanceof ClasspathEntry) {
	return false;
	}
	}
	return selection.size() > 0;
	case RuntimeClasspathAction.REMOVE :
	case RuntimeClasspathAction.MOVE :
	selected= selection.iterator();
	while (selected.hasNext()) {
	IClasspathEntry entry = selected.next();
	if (!entry.isEditable()) {
	return false;
	}
	}
	return selection.size() > 0;
	default :
	break;
	}

	return true;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getSelectedEntries()
	*/
	public ISelection getSelectedEntries() {
	IStructuredSelection selection= (IStructuredSelection)getSelection();
	List<IClasspathEntry> entries= new ArrayList<IClasspathEntry>(selection.size() * 2);
	Iterator<IClasspathEntry> itr= selection.iterator();
	while (itr.hasNext()) {
	IClasspathEntry element = itr.next();
	if (element.hasEntries()) {
	entries.addAll(Arrays.asList(element.getEntries()));
	} else {
	entries.add(element);
	}
	}

	return new StructuredSelection(entries);
	}
	}