| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.wizards.buildpaths; |
| |
| import java.io.File; |
| |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.widgets.Shell; |
| |
| import org.eclipse.core.runtime.IStatus; |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerComparator; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| |
| import org.eclipse.ui.ISharedImages; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.dialogs.ISelectionStatusValidator; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.JavaPluginImages; |
| import org.eclipse.jdt.internal.ui.dialogs.StatusInfo; |
| import org.eclipse.jdt.internal.core.manipulation.util.BasicElementLabels; |
| import org.eclipse.jdt.internal.ui.viewsupport.FilteredElementTreeSelectionDialog; |
| |
| /** |
| * Selection dialog to select a JAR on the file system. |
| * Set input to a java.io.File that point to folder. |
| */ |
| public class JARFileSelectionDialog extends FilteredElementTreeSelectionDialog { |
| |
| /** |
| * Constructor for JARFileSelectionDialog. |
| * @param parent parent shell |
| * @param multiSelect specifies if selecting multiple elements is allowed |
| * @param acceptFolders specifies if folders can be selected as well |
| */ |
| public JARFileSelectionDialog(Shell parent, boolean multiSelect, boolean acceptFolders) { |
| this(parent, multiSelect, acceptFolders, false); |
| } |
| |
| /** |
| * Constructor for JARFileSelectionDialog. |
| * @param parent parent shell |
| * @param multiSelect specifies if selecting multiple elements is allowed |
| * @param acceptFolders specifies if folders can be selected as well |
| * @param acceptAllArchives specifies if all archives (not just jar and zip) can be selected |
| */ |
| public JARFileSelectionDialog(Shell parent, boolean multiSelect, boolean acceptFolders, boolean acceptAllArchives) { |
| super(parent, new FileLabelProvider(), new FileContentProvider(), false); |
| setComparator(new FileViewerComparator()); |
| if (!acceptAllArchives) { |
| addFilter(new JARZipFileFilter(acceptFolders)); |
| } else { |
| setInitialFilter(ArchiveFileFilter.JARZIP_FILTER_STRING); |
| } |
| setValidator(new FileSelectionValidator(multiSelect, acceptFolders)); |
| setHelpAvailable(false); |
| } |
| |
| |
| |
| private static class FileLabelProvider extends LabelProvider { |
| private final Image IMG_FOLDER= PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER); |
| private final Image IMG_JAR= JavaPlugin.getDefault().getImageRegistry().get(JavaPluginImages.IMG_OBJS_EXTJAR); |
| |
| @Override |
| public Image getImage(Object element) { |
| if (element instanceof File) { |
| File curr= (File) element; |
| if (curr.isDirectory()) { |
| return IMG_FOLDER; |
| } else { |
| return IMG_JAR; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String getText(Object element) { |
| if (element instanceof File) { |
| return BasicElementLabels.getResourceName(((File) element).getName()); |
| } |
| return super.getText(element); |
| } |
| } |
| |
| private static class FileContentProvider implements ITreeContentProvider { |
| |
| private final Object[] EMPTY= new Object[0]; |
| |
| @Override |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement instanceof File) { |
| File[] children= ((File) parentElement).listFiles(); |
| if (children != null) { |
| return children; |
| } |
| } |
| return EMPTY; |
| } |
| |
| @Override |
| public Object getParent(Object element) { |
| if (element instanceof File) { |
| return ((File) element).getParentFile(); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean hasChildren(Object element) { |
| return getChildren(element).length > 0; |
| } |
| |
| @Override |
| public Object[] getElements(Object element) { |
| return getChildren(element); |
| } |
| |
| @Override |
| public void dispose() { |
| } |
| |
| @Override |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| } |
| |
| } |
| |
| private static class JARZipFileFilter extends ViewerFilter { |
| private final boolean fAcceptFolders; |
| |
| public JARZipFileFilter(boolean acceptFolders) { |
| fAcceptFolders= acceptFolders; |
| } |
| |
| @Override |
| public boolean select(Viewer viewer, Object parent, Object element) { |
| if (element instanceof File) { |
| File file= (File) element; |
| if (file.isFile()) { |
| return isArchive(file); |
| } else if (fAcceptFolders) { |
| return true; |
| } else { |
| File[] listFiles= file.listFiles(); |
| if (listFiles != null) { |
| for (File f : listFiles) { |
| if (select(viewer, file, f)) { |
| return true; |
| } |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| private static boolean isArchive(File file) { |
| String name= file.getName(); |
| int detIndex= name.lastIndexOf('.'); |
| return (detIndex != -1 && ArchiveFileFilter.isArchiveFileExtension(name.substring(detIndex + 1))); |
| } |
| } |
| |
| private static class FileViewerComparator extends ViewerComparator { |
| @Override |
| public int category(Object element) { |
| if (element instanceof File) { |
| if (((File) element).isFile()) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| } |
| |
| private static class FileSelectionValidator implements ISelectionStatusValidator { |
| private boolean fMultiSelect; |
| private boolean fAcceptFolders; |
| |
| public FileSelectionValidator(boolean multiSelect, boolean acceptFolders) { |
| fMultiSelect= multiSelect; |
| fAcceptFolders= acceptFolders; |
| } |
| |
| @Override |
| public IStatus validate(Object[] selection) { |
| int nSelected= selection.length; |
| if (nSelected == 0 || (nSelected > 1 && !fMultiSelect)) { |
| return new StatusInfo(IStatus.ERROR, ""); //$NON-NLS-1$ |
| } |
| for (Object curr : selection) { |
| if (curr instanceof File) { |
| File file= (File) curr; |
| if (!fAcceptFolders && !file.isFile()) { |
| return new StatusInfo(IStatus.ERROR, ""); //$NON-NLS-1$ |
| } |
| } |
| } |
| return new StatusInfo(); |
| } |
| } |
| |
| |
| } |