| /******************************************************************************* |
| * Copyright (c) 2005, 2007 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.dialogs; |
| |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.window.IShellProvider; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * This class provides a Yes/No prompter that can be used for multiple questions |
| * during the same operation. It can be used for a single prompt (in which case |
| * OK and Cancel are presented) or multiple (in which case Yes, Yes to All, No |
| * and No to All are presented). It uses the previous selection as appropriate. |
| */ |
| public class MultipleYesNoPrompter { |
| private static final int ALWAYS_ASK = 0; |
| private static final int YES_TO_ALL = 1; |
| private static final int NO_TO_ALL = 2; |
| private String[] buttons; |
| private int confirmation = ALWAYS_ASK; |
| private String title; |
| private boolean hasMultiple; |
| private boolean allOrNothing; |
| private IShellProvider shellProvider; |
| |
| /** |
| * Prompt for the given resources using the specific condition. The prompt dialog will |
| * have the title specified. |
| */ |
| public MultipleYesNoPrompter(IShellProvider provider, String title, |
| boolean hasMultiple, boolean allOrNothing) { |
| this.title = title; |
| this.shellProvider = provider; |
| this.hasMultiple = hasMultiple; |
| this.allOrNothing = allOrNothing; |
| if (hasMultiple) { |
| if (allOrNothing) { |
| buttons = new String[] { |
| IDialogConstants.YES_LABEL, |
| IDialogConstants.YES_TO_ALL_LABEL, |
| IDialogConstants.CANCEL_LABEL}; |
| } else { |
| buttons = new String[] { |
| IDialogConstants.YES_LABEL, |
| IDialogConstants.YES_TO_ALL_LABEL, |
| IDialogConstants.NO_LABEL, |
| IDialogConstants.NO_TO_ALL_LABEL, |
| IDialogConstants.CANCEL_LABEL}; |
| } |
| } else { |
| buttons = new String[] { |
| IDialogConstants.YES_LABEL, |
| IDialogConstants.NO_LABEL, |
| IDialogConstants.CANCEL_LABEL |
| }; |
| } |
| } |
| |
| /** |
| * Return whether the given resource should be included in the |
| * target set. |
| * @param message the message |
| * @return whether the resource should be included |
| * @throws InterruptedException if the user choose to cancel |
| */ |
| public boolean shouldInclude(String message) throws InterruptedException { |
| if (confirmation == YES_TO_ALL) { |
| return true; |
| } else { |
| switch (confirmation) { |
| case ALWAYS_ASK: |
| // This call has the nasty side effect of changing the |
| // instance scoped "confirmation" |
| if (confirmOverwrite(message)) { |
| return true; |
| } |
| return false; |
| |
| case YES_TO_ALL: |
| return true; |
| |
| case NO_TO_ALL: |
| // Don't overwrite |
| return false; |
| |
| default: |
| // If we get here, the user said no or not_to_all. |
| return false; |
| } |
| } |
| } |
| |
| /** |
| * Opens the confirmation dialog based on the prompt condition settings. |
| */ |
| private boolean confirmOverwrite(String msg) throws InterruptedException { |
| Shell shell = shellProvider.getShell(); |
| if (shell == null) return false; |
| final MessageDialog dialog = |
| new MessageDialog(shell, title, null, msg, MessageDialog.QUESTION, buttons, 0); |
| |
| // run in syncExec because callback is from an operation, |
| // which is probably not running in the UI thread. |
| shell.getDisplay().syncExec( |
| new Runnable() { |
| @Override |
| public void run() { |
| dialog.open(); |
| } |
| }); |
| if (hasMultiple) { |
| switch (dialog.getReturnCode()) { |
| case 0:// Yes |
| return true; |
| case 1:// Yes to all |
| confirmation = YES_TO_ALL; |
| return true; |
| case 2:// No (or CANCEL for all-or-nothing) |
| if (allOrNothing) { |
| throw new InterruptedException(); |
| } |
| return false; |
| case 3:// No to all |
| confirmation = NO_TO_ALL; |
| return false; |
| case 4:// Cancel |
| default: |
| throw new InterruptedException(); |
| } |
| } else { |
| switch (dialog.getReturnCode()) { |
| case 0:// Yes |
| return true; |
| case 1:// No |
| return false; |
| case 2:// Cancel |
| default: |
| throw new InterruptedException(); |
| } |
| } |
| } |
| |
| public void setTitle(String title) { |
| this.title = title; |
| } |
| |
| } |