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/*******************************************************************************
* Copyright (c) 2000, 2015 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.ui;
/**
* Workbench parts implement or adapt to this interface to participate
* in actions that require a prompt for the user to provide input on
* what to do with unsaved data when the part is closed or the Workbench
* is shut down.
* <p>
* Note that if a part implements this interface, it is excluded from the
* common "prompt to save" dialog, and instead opens its own dialog. This may
* cause multiple prompts to the end user during a single user operation.
* Implementors should be aware that this may lead to a less than optimal
* user experience.
* </p>
*
* @since 3.1
*/
public interface ISaveablePart2 extends ISaveablePart {
/**
* Standard return code constant (value 0) indicating that the part
* needs to be saved.
*/
int YES = 0;
/**
* Standard return code constant (value 1) indicating that the part
* does not need to be saved and the part should be closed.
*/
int NO = 1;
/**
* Standard return code constant (value 2) indicating that the part
* does not need to be saved and the part should not be closed.
*/
int CANCEL = 2;
/**
* Standard return code constant (value 3) indicating that the default
* behavior for prompting the user to save will be used.
*/
int DEFAULT = 3;
/**
* Prompts the user for input on what to do with unsaved data.
* This method is only called when the part is closed or when
* the Workbench is shutting down.
* <p>
* Implementors are expected to open a custom dialog where the
* user will be able to determine what to do with the unsaved data.
* Implementors may also return a result of <code>DEFAULT</code>
* to get the default prompt handling from the Workbench.
* </p>
*
* @return the return code, must be either <code>YES</code>,
* <code>NO</code>, <code>CANCEL</code> or <code>DEFAULT</code>.
*/
int promptToSaveOnClose();
}
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