| /******************************************************************************* |
| * Copyright (c) 2000, 2017 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.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| 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.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| 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.widgets.Composite; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.dialogs.FilteredTree; |
| import org.eclipse.ui.dialogs.PatternFilter; |
| import org.eclipse.ui.progress.WorkbenchJob; |
| |
| /** |
| * A viewer that displays and manipulates runtime classpath entries. |
| */ |
| public class RuntimeClasspathViewer implements IClasspathViewer { |
| |
| /** |
| * Entry changed listeners |
| */ |
| private ListenerList<IEntriesChangedListener> fListeners = new ListenerList<>(); |
| |
| private IClasspathEntry fCurrentParent= null; |
| |
| private IPreferenceChangeListener fPrefListeners = new IPreferenceChangeListener() { |
| |
| @Override |
| public void preferenceChange(PreferenceChangeEvent event) { |
| if (DebugUIPlugin.getStandardDisplay().getThread().equals(Thread.currentThread())) { |
| refresh(true); |
| } else { |
| DebugUIPlugin.getStandardDisplay().syncExec(new Runnable() { |
| @Override |
| public void run() { |
| refresh(true); |
| } |
| }); |
| } |
| |
| } |
| }; |
| |
| private static class RuntimeClasspathFilteredTree extends FilteredTree { |
| |
| private boolean isFiltering; |
| |
| private RuntimeClasspathFilteredTree(Composite parent, PatternFilter filter) { |
| super(parent, 0, filter, true); |
| } |
| |
| private boolean hasFilterTextEntered() { |
| return isFiltering; |
| } |
| |
| /** |
| * Called by modify listener -> implicit change listener. |
| */ |
| @Override |
| protected void textChanged() { |
| |
| super.textChanged(); |
| |
| final String filterString = getFilterString(); |
| if (null != filterString) { |
| // REVIEW: There are several different ways used to check for empty filter texts: |
| // comparing with "", comparing with IInternalDebugCoreConstants.EMPTY_STRING and checking size of trimmed value. |
| isFiltering = !filterString.trim().isEmpty(); |
| } else { |
| isFiltering = false; |
| } |
| } |
| |
| @Override |
| protected WorkbenchJob doCreateRefreshJob() { |
| final WorkbenchJob job = super.doCreateRefreshJob(); |
| |
| return new WorkbenchJob("Classpath filter refresh") { //$NON-NLS-1$ |
| |
| @Override |
| public IStatus runInUIThread(IProgressMonitor monitor) { |
| final IStatus status = job.runInUIThread(monitor); |
| |
| if (!isFiltering) { |
| getViewer().expandToLevel(2); |
| } |
| |
| return status; |
| } |
| }; |
| } |
| } |
| |
| private final RuntimeClasspathFilteredTree fTree; |
| |
| public TreeViewer getTreeViewer() { |
| return fTree.getViewer(); |
| } |
| |
| /** |
| * Creates a runtime classpath viewer with the given parent. |
| * |
| * @param parent the parent control |
| */ |
| public RuntimeClasspathViewer(Composite parent) { |
| |
| final PatternFilter filter = new PatternFilter(); |
| filter.setIncludeLeadingWildcard(true); |
| fTree = new RuntimeClasspathFilteredTree(parent, filter); |
| |
| getTreeViewer().getTree().addKeyListener(new KeyAdapter() { |
| @Override |
| public void keyPressed(KeyEvent event) { |
| if (updateSelection(RuntimeClasspathAction.REMOVE, (IStructuredSelection) getSelection()) && event.character == SWT.DEL |
| && event.stateMask == 0) { |
| getClasspathContentProvider().removeAll(((IStructuredSelection) getSelectedEntries()).toList()); |
| notifyChanged(); |
| } |
| } |
| }); |
| |
| fTree.addDisposeListener(new DisposeListener() { |
| @Override |
| 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[]) |
| */ |
| @Override |
| 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() |
| */ |
| @Override |
| public IRuntimeClasspathEntry[] getEntries() { |
| return getClasspathContentProvider().getModel().getAllEntries(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#addEntries(org.eclipse.jdt.launching.IRuntimeClasspathEntry[]) |
| */ |
| @SuppressWarnings("unlikely-arg-type") |
| @Override |
| 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() |
| */ |
| @Override |
| 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 (getTreeViewer().getLabelProvider() != null) { |
| ((ClasspathLabelProvider) getTreeViewer().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() |
| */ |
| @Override |
| public void notifyChanged() { |
| for (IEntriesChangedListener listener : fListeners) { |
| listener.entriesChanged(this); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#indexOf(org.eclipse.jdt.launching.IRuntimeClasspathEntry) |
| */ |
| @SuppressWarnings("unlikely-arg-type") |
| @Override |
| 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() |
| */ |
| @Override |
| public Shell getShell() { |
| return getTreeViewer().getControl().getShell(); |
| } |
| |
| private ClasspathContentProvider getClasspathContentProvider() { |
| return (ClasspathContentProvider) getTreeViewer().getContentProvider(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#updateSelection(int, org.eclipse.jface.viewers.IStructuredSelection) |
| */ |
| @Override |
| 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.MOVE: |
| if (fTree.hasFilterTextEntered()) { |
| return false; |
| } |
| case RuntimeClasspathAction.REMOVE : |
| 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<>(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); |
| } |
| |
| @Override |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| getTreeViewer().addSelectionChangedListener(listener); |
| } |
| |
| @Override |
| public ISelection getSelection() { |
| return getTreeViewer().getSelection(); |
| } |
| |
| @Override |
| public void removeSelectionChangedListener(ISelectionChangedListener listener) { |
| getTreeViewer().removeSelectionChangedListener(listener); |
| } |
| |
| @Override |
| public void setSelection(ISelection selection) { |
| getTreeViewer().setSelection(selection); |
| } |
| |
| @Override |
| public void refresh(Object entry) { |
| getTreeViewer().refresh(); |
| } |
| |
| } |
