| /******************************************************************************* |
| * Copyright (c) 2003, 2006 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.ui.commands; |
| |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.IWorkbenchPartSite; |
| import org.eclipse.ui.internal.util.Util; |
| |
| /** |
| * </p> |
| * An instance of this class represents a request to handle a command. A handler |
| * submission specifies a list of conditions under which it would be appropriate |
| * for a particular command to have a particular handler. These conditions |
| * include things like the active part or the active shell. So, it is possible |
| * to say things like: "when my part is active, please consider calling these |
| * classes when you want to perform a cut, copy or paste". |
| * </p> |
| * <p> |
| * The workbench considers all of the submissions it has received and choses the |
| * ones it views as the best possible match. |
| * </p> |
| * <p> |
| * This class is not intended to be extended by clients. |
| * </p> |
| * <p> |
| * Note: this class has a natural ordering that is inconsistent with equals. |
| * </p> |
| * |
| * @since 3.0 |
| * @see org.eclipse.ui.commands.IWorkbenchCommandSupport |
| * @deprecated Please use <code>IHandlerService.activateHandler</code> |
| * instead. |
| * @see org.eclipse.ui.handlers.IHandlerService |
| */ |
| public final class HandlerSubmission implements Comparable { |
| |
| /** |
| * The part identifier for the part that should be active before this |
| * submission can be considered. This value can be <code>null</code>, which |
| * indicates that it should match any part. |
| */ |
| private final String activePartId; |
| |
| /** |
| * The shell that must be active before this submission can be considered. |
| * This value can be <code>null</code>, which indicates that it should match |
| * any shell. |
| */ |
| private final Shell activeShell; |
| |
| /** |
| * The workbench site that must be active before this submission can be |
| * considered. This value can be <code>null</code>, which indicates that it |
| * should match an workbench part site. |
| */ |
| private final IWorkbenchPartSite activeWorkbenchPartSite; |
| |
| /** |
| * The identifier for the command which the submitted handler handles. This |
| * value cannot be <code>null</code>. |
| */ |
| private final String commandId; |
| |
| /** |
| * The handler being submitted. This value cannot be <code>null</code>. |
| */ |
| private final IHandler handler; |
| |
| /** |
| * The priority for this submission. In the event of all other factors |
| * being equal, the priority will be considered in an attempt to resolve |
| * conflicts. This value cannot be <code>null</code>. |
| */ |
| private final Priority priority; |
| |
| /** |
| * A lazily computed cache of the string representation of this submission. |
| * This value is computed once; before it is computed, it is |
| * <code>null</code>. |
| */ |
| private transient String string; |
| |
| /** |
| * Creates a new instance of this class. |
| * |
| * @param activePartId |
| * the identifier of the part that must be active for this |
| * request to be considered. May be <code>null</code>. |
| * @param activeShell |
| * the shell that must be active for this request to be |
| * considered. May be <code>null</code>. |
| * @param activeWorkbenchPartSite |
| * the workbench part site of the part that must be active for |
| * this request to be considered. May be <code>null</code>. |
| * @param commandId |
| * the identifier of the command to be handled. Must not be |
| * <code>null</code>. |
| * @param handler |
| * the handler. Must not be <code>null</code>. |
| * @param priority |
| * the priority. Must not be <code>null</code>. |
| */ |
| public HandlerSubmission(String activePartId, Shell activeShell, |
| IWorkbenchPartSite activeWorkbenchPartSite, String commandId, |
| IHandler handler, Priority priority) { |
| if (commandId == null || handler == null || priority == null) { |
| throw new NullPointerException(); |
| } |
| |
| this.activePartId = activePartId; |
| this.activeShell = activeShell; |
| this.activeWorkbenchPartSite = activeWorkbenchPartSite; |
| this.commandId = commandId; |
| this.handler = handler; |
| this.priority = priority; |
| } |
| |
| /** |
| * @see Comparable#compareTo(java.lang.Object) |
| */ |
| public int compareTo(Object object) { |
| HandlerSubmission castedObject = (HandlerSubmission) object; |
| int compareTo = Util.compare(activeWorkbenchPartSite, |
| castedObject.activeWorkbenchPartSite); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(activePartId, castedObject.activePartId); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(activeShell, castedObject.activeShell); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(priority, castedObject.priority); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(commandId, |
| castedObject.commandId); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(handler, |
| castedObject.handler); |
| } |
| } |
| } |
| } |
| } |
| |
| return compareTo; |
| } |
| |
| /** |
| * Returns the identifier of the part that must be active for this request |
| * to be considered. |
| * |
| * @return the identifier of the part that must be active for this request |
| * to be considered. May be <code>null</code>. |
| */ |
| public String getActivePartId() { |
| return activePartId; |
| } |
| |
| /** |
| * Returns the shell that must be active for this request to be considered. |
| * |
| * @return the shell that must be active for this request to be considered. |
| * May be <code>null</code>. |
| */ |
| public Shell getActiveShell() { |
| return activeShell; |
| } |
| |
| /** |
| * Returns the workbench part site of the part that must be active for this |
| * request to be considered. |
| * |
| * @return the workbench part site of the part that must be active for this |
| * request to be considered. May be <code>null</code>. |
| */ |
| public IWorkbenchPartSite getActiveWorkbenchPartSite() { |
| return activeWorkbenchPartSite; |
| } |
| |
| /** |
| * Returns the identifier of the command to be handled. |
| * |
| * @return the identifier of the command to be handled. Guaranteed not to be |
| * <code>null</code>. |
| */ |
| public String getCommandId() { |
| return commandId; |
| } |
| |
| /** |
| * Returns the handler. |
| * |
| * @return the handler. Guaranteed not to be <code>null</code>. |
| */ |
| public IHandler getHandler() { |
| return handler; |
| } |
| |
| /** |
| * Returns the priority. |
| * |
| * @return the priority. Guaranteed not to be <code>null</code>. |
| */ |
| public Priority getPriority() { |
| return priority; |
| } |
| |
| /** |
| * @see Object#toString() |
| */ |
| public String toString() { |
| if (string == null) { |
| final StringBuffer stringBuffer = new StringBuffer(); |
| stringBuffer.append("[activePartId="); //$NON-NLS-1$ |
| stringBuffer.append(activePartId); |
| stringBuffer.append(",activeShell="); //$NON-NLS-1$ |
| stringBuffer.append(activeShell); |
| stringBuffer.append(",activeWorkbenchSite="); //$NON-NLS-1$ |
| stringBuffer.append(activeWorkbenchPartSite); |
| stringBuffer.append(",commandId="); //$NON-NLS-1$ |
| stringBuffer.append(commandId); |
| stringBuffer.append(",handler="); //$NON-NLS-1$ |
| stringBuffer.append(handler); |
| stringBuffer.append(",priority="); //$NON-NLS-1$ |
| stringBuffer.append(priority); |
| stringBuffer.append(']'); |
| string = stringBuffer.toString(); |
| } |
| |
| return string; |
| } |
| } |