| /******************************************************************************* |
| * Copyright (c) 2005, 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.internal.cheatsheets.data; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.ui.internal.cheatsheets.views.CheatSheetManager; |
| import org.w3c.dom.Node; |
| |
| /** |
| * The common base class for all of the cheatsheet elements which have |
| * executable behavior, i.e. Action, Command and Linkable |
| */ |
| |
| public abstract class AbstractExecutable { |
| |
| private String[] params; |
| private boolean confirm = false; |
| private String when; |
| private boolean required = true; |
| |
| /** |
| * This method returns an array of parameters specified to be passed to the action class |
| * when it is run in the cheat sheet. |
| * @return an array of string parameters that are passed to the action class when it is run |
| */ |
| public String[] getParams() { |
| return params; |
| } |
| |
| /** |
| * This method returns the expression to be used when determining if this action should used. |
| * @return the when expression to be used for this action |
| */ |
| public String getWhen() { |
| return when; |
| } |
| |
| /** |
| * Returns whether this action needs to be manually confirmed by the user. |
| * @return <code>true</code> when the action needs to be confirmed and <code>false</code> otherwise. |
| */ |
| public boolean isConfirm() { |
| return confirm; |
| } |
| |
| /** |
| * @return true if this step or substep can only be completed by performing |
| * this executable. |
| */ |
| public boolean isRequired() { |
| return required; |
| } |
| |
| /** |
| * This method allows you to set the string parameters to be passed to the action class on running it |
| * in the cheat sheet. |
| * @param params an array of strings that is passed to the action class on running the action |
| */ |
| public void setParams(String[] params) { |
| this.params = params; |
| } |
| |
| /** |
| * Set whether this action needs to be manually confirmed by the user. |
| * @param value The new value of the confirm state. |
| */ |
| public void setConfirm(boolean value) { |
| this.confirm = value; |
| } |
| |
| /** |
| * Set whether this executable can be by passed. |
| * @param required if true this action must be performed to complete this |
| * step or substep. |
| */ |
| public void setRequired(boolean required) { |
| this.required = required; |
| } |
| |
| /** |
| * Indicates this action is to be used if and only if the value of the condition attribute |
| * of the containing <perform-when> element matches this string value. This attribute is |
| * ignored if the <action> element is not a child of a <perform-when> element. |
| * @param when The expression to use when determine if this action should be used. |
| */ |
| public void setWhen(String when) { |
| this.when = when; |
| } |
| |
| /** |
| * Handle an attribute specific to this type of AbstractExecutable |
| * @param attribute |
| * @return true if this parameter is valid for this type of executable |
| */ |
| public abstract boolean handleAttribute(Node attribute); |
| |
| /** |
| * Check to see if all required attributes are present and are valid. |
| * This method is called after any calls to handleAttributes have been made |
| * @param node the node for this executable. |
| * @return null if the parameters are valid or an error message if the |
| * parameters are invalid or incomplete. |
| */ |
| public abstract String checkAttributes(Node node); |
| |
| /** |
| * @return true if calls to execute require a non-null CheatsheetManager |
| */ |
| public abstract boolean isCheatSheetManagerUsed(); |
| |
| /** |
| * Execute and return a status |
| * @param csm A cheatsheet manager if this object uses a cheatsheet manager, |
| * otherwise null. |
| * @return OK status if the operation succeeds, warning status if an action |
| * completes with a failure result, error status if an exception was thrown |
| * or the executable could not be initiated. |
| */ |
| public abstract IStatus execute(CheatSheetManager csm); |
| |
| /** |
| * @return true if this executable can have parameters |
| */ |
| public abstract boolean hasParams(); |
| |
| } |