| /******************************************************************************* |
| * Copyright (c) 2005 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.team.internal.ui.wizards; |
| |
| import java.util.Vector; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IWorkspace; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.jface.dialogs.IDialogSettings; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.team.internal.ui.TeamUIPlugin; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| |
| public class PsfFilenameStore { |
| // Most recently used filename is first in the array. |
| // Least recently used filename is at the end of the list. |
| // When the list overflows, items drop off the end. |
| private static final int HISTORY_LENGTH = 10; |
| |
| private static final String STORE_SECTION = "ImportPSFDialog"; //$NON-NLS-1$ |
| private static final String FILENAMES = "filenames"; //$NON-NLS-1$ |
| private static final String PREVIOUS = "previous"; //$NON-NLS-1$ |
| |
| // If a PSF file was selected when the wizard was opened, then this is it. |
| // This is only a cache; it is not part of the history until the user has used it. |
| private static String _selectedFilename = null; |
| |
| private static IDialogSettings _section; |
| |
| private PsfFilenameStore() { |
| // All-static |
| } |
| |
| public static void setDefaultFromSelection(IWorkbench workbench) { |
| // Scan the workbench for a selected PSF file |
| IWorkbenchWindow wnd = workbench.getActiveWorkbenchWindow(); |
| IWorkbenchPage pg = wnd.getActivePage(); |
| ISelection sel = pg.getSelection(); |
| |
| if (!(sel instanceof IStructuredSelection)) { |
| return; |
| } |
| IStructuredSelection selection = (IStructuredSelection)sel; |
| |
| Object firstElement = selection.getFirstElement(); |
| if (!(firstElement instanceof IAdaptable)) { |
| return; |
| } |
| Object o = ((IAdaptable) firstElement).getAdapter(IResource.class); |
| if (o == null) { |
| return; |
| } |
| IResource resource = (IResource) o; |
| |
| if (resource.getType() != IResource.FILE) { |
| return; |
| } |
| |
| if (!resource.isAccessible()) { |
| return; |
| } |
| |
| String extension = resource.getFileExtension(); |
| if (extension == null || !extension.equalsIgnoreCase("psf")) { //$NON-NLS-1$ |
| return; |
| } |
| |
| IWorkspace workspace = resource.getWorkspace(); |
| workspace.getRoot().getFullPath(); |
| |
| IPath path = resource.getLocation(); |
| _selectedFilename = path.toOSString(); |
| } |
| |
| public static String getSuggestedDefault() { |
| if (_selectedFilename != null) { |
| return _selectedFilename; |
| } |
| return getPrevious(); |
| } |
| |
| private static String getPrevious() { |
| IDialogSettings section = getSettingsSection(); |
| String retval = section.get(PREVIOUS); |
| if (retval == null) { |
| retval = ""; //$NON-NLS-1$ |
| } |
| return retval; |
| } |
| |
| public static String[] getHistory() { |
| IDialogSettings section = getSettingsSection(); |
| String[] arr = section.getArray(FILENAMES); |
| if (arr == null) { |
| arr = new String[0]; |
| } |
| return arr; |
| } |
| |
| public static void remember(String filename) { |
| Vector filenames = createVector(getHistory()); |
| if (filenames.contains(filename)) { |
| // The item is in the list. Remove it and add it back at the |
| // beginning. If it already was at the beginning this will be a |
| // waste of time, but it's not even measurable so I don't care. |
| filenames.remove(filename); |
| } |
| // Most recently used filename goes to the beginning of the list |
| filenames.add(0, filename); |
| |
| // Forget any overflowing items |
| while (filenames.size() > HISTORY_LENGTH) { |
| filenames.remove(HISTORY_LENGTH); |
| } |
| |
| // Make it an array |
| String[] arr = (String[]) filenames.toArray(new String[filenames.size()]); |
| |
| IDialogSettings section = getSettingsSection(); |
| section.put(FILENAMES, arr); |
| section.put(PREVIOUS, filename); |
| } |
| |
| private static Vector createVector(Object[] arr) { |
| Vector v = new Vector(); |
| for (int ix = 0; ix < arr.length; ++ix) { |
| v.add(ix, arr[ix]); |
| } |
| return v; |
| } |
| |
| private static IDialogSettings getSettingsSection() { |
| if (_section != null) |
| return _section; |
| |
| IDialogSettings settings = TeamUIPlugin.getPlugin().getDialogSettings(); |
| _section = settings.getSection(STORE_SECTION); |
| if (_section != null) |
| return _section; |
| |
| _section = settings.addNewSection(STORE_SECTION); |
| return _section; |
| } |
| } |