| /******************************************************************************* |
| * Copyright (c) 2006, 2008 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.jface.text.quickassist; |
| |
| import org.eclipse.swt.graphics.Color; |
| |
| import org.eclipse.jface.preference.JFacePreferences; |
| |
| import org.eclipse.jface.text.IInformationControlCreator; |
| import org.eclipse.jface.text.contentassist.ICompletionListener; |
| import org.eclipse.jface.text.source.Annotation; |
| import org.eclipse.jface.text.source.ISourceViewer; |
| import org.eclipse.jface.text.source.ISourceViewerExtension3; |
| |
| |
| /** |
| * An <code>IQuickAssistAssistant</code> provides support for quick fixes and quick assists. The |
| * quick assist assistant is a {@link ISourceViewer} add-on. Its purpose is to propose, display, and |
| * insert quick assists and quick fixes available at the current source viewer's quick assist |
| * invocation context. |
| * <p> |
| * The quick assist assistant can be configured with a {@link IQuickAssistProcessor} which provides |
| * the possible quick assist and quick fix completions. |
| * </p> |
| * <p> |
| * In order to provide backward compatibility for clients of <code>IQuickAssistAssistant</code>, |
| * extension interfaces are used to provide a means of evolution. The following extension interfaces |
| * exist: |
| * </p> |
| * <ul> |
| * <li>{@link IQuickAssistAssistantExtension} since version 3.4 introducing the following function: |
| * <ul> |
| * <li>allows to get a handler for the given command identifier</li> |
| * <li>allows to enable support for colored labels in the proposal popup</li> |
| * </ul> |
| * </li> |
| * </ul> |
| * <p> |
| * The interface can be implemented by clients. By default, clients use {@link QuickAssistAssistant} |
| * as the standard implementer of this interface. |
| * </p> |
| * |
| * @see ISourceViewer |
| * @see IQuickAssistProcessor |
| * @see IQuickAssistAssistantExtension |
| * @since 3.2 |
| */ |
| public interface IQuickAssistAssistant { |
| |
| /** |
| * Installs quick assist support on the given source viewer. |
| * <p> |
| * <strong>Note:</strong> This quick assist assistant will only be able to query the invocation context |
| * if <code>sourceViewer</code> also implements {@link ISourceViewerExtension3}. |
| * </p> |
| * |
| * @param sourceViewer the source viewer on which quick assist will work |
| */ |
| void install(ISourceViewer sourceViewer); |
| |
| /** |
| * Sets the information control creator for the additional information control. |
| * |
| * @param creator the information control creator for the additional information control |
| */ |
| void setInformationControlCreator(IInformationControlCreator creator); |
| |
| /** |
| * Uninstalls quick assist support from the source viewer it has |
| * previously be installed on. |
| */ |
| void uninstall(); |
| |
| /** |
| * Shows all possible quick fixes and quick assists at the viewer's cursor position. |
| * |
| * @return an optional error message if no proposals can be computed |
| */ |
| String showPossibleQuickAssists(); |
| |
| /** |
| * Registers a given quick assist processor for a particular content type. If there is already |
| * a processor registered, the new processor is registered instead of the old one. |
| * |
| * @param processor the quick assist processor to register, or <code>null</code> to remove |
| * an existing one |
| */ |
| void setQuickAssistProcessor(IQuickAssistProcessor processor); |
| |
| /** |
| * Returns the quick assist processor to be used for the given content type. |
| * |
| * @return the quick assist processor or <code>null</code> if none exists |
| */ |
| IQuickAssistProcessor getQuickAssistProcessor(); |
| |
| /** |
| * Tells whether this assistant has a fix for the given annotation. |
| * <p> |
| * <strong>Note:</strong> This test must be fast and optimistic i.e. it is OK to return |
| * <code>true</code> even though there might be no quick fix. |
| * </p> |
| * |
| * @param annotation the annotation |
| * @return <code>true</code> if the assistant has a fix for the given annotation |
| */ |
| boolean canFix(Annotation annotation); |
| |
| /** |
| * Tells whether this assistant has assists for the given invocation context. |
| * |
| * @param invocationContext the invocation context |
| * @return <code>true</code> if the assistant has a fix for the given annotation |
| */ |
| boolean canAssist(IQuickAssistInvocationContext invocationContext); |
| |
| /** |
| * Sets the proposal selector's background color. |
| * <p> |
| * <strong>Note:</strong> As of 3.4, you should only call this |
| * method if you want to override the {@link JFacePreferences#CONTENT_ASSIST_BACKGROUND_COLOR}. |
| * </p> |
| * |
| * @param background the background color |
| */ |
| void setProposalSelectorBackground(Color background); |
| |
| /** |
| * Sets the proposal's foreground color. |
| * <p> |
| * <strong>Note:</strong> As of 3.4, you should only call this |
| * method if you want to override the {@link JFacePreferences#CONTENT_ASSIST_FOREGROUND_COLOR}. |
| * </p> |
| * |
| * @param foreground the foreground color |
| */ |
| void setProposalSelectorForeground(Color foreground); |
| |
| /** |
| * Adds a completion listener that will be informed before proposals are computed. |
| * |
| * @param listener the listener |
| */ |
| void addCompletionListener(ICompletionListener listener); |
| |
| /** |
| * Removes a completion listener. |
| * |
| * @param listener the listener to remove |
| */ |
| void removeCompletionListener(ICompletionListener listener); |
| |
| /** |
| * Enables displaying a status line below the proposal popup. The default is not to show the |
| * status line. The contents of the status line may be set via {@link #setStatusMessage(String)}. |
| * |
| * @param show <code>true</code> to show a message line, <code>false</code> to not show one. |
| */ |
| public void setStatusLineVisible(boolean show); |
| |
| /** |
| * Sets the caption message displayed at the bottom of the completion proposal popup. |
| * |
| * @param message the message |
| */ |
| public void setStatusMessage(String message); |
| |
| } |