| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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.jdt.internal.ui.preferences; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.RGB; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.preference.PreferenceConverter; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.DefaultInformationControl; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextHover; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.contentassist.ContentAssistant; |
| import org.eclipse.jface.text.contentassist.IContentAssistant; |
| import org.eclipse.jface.text.source.ISourceViewer; |
| import org.eclipse.jface.text.templates.TemplateContextType; |
| import org.eclipse.jface.text.templates.TemplateVariableResolver; |
| |
| import org.eclipse.ui.texteditor.ITextEditor; |
| |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| import org.eclipse.jdt.ui.text.IColorManager; |
| import org.eclipse.jdt.ui.text.IJavaPartitions; |
| import org.eclipse.jdt.ui.text.JavaTextTools; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.text.JavaWordFinder; |
| import org.eclipse.jdt.internal.ui.text.SimpleJavaSourceViewerConfiguration; |
| import org.eclipse.jdt.internal.ui.text.template.preferences.TemplateVariableProcessor; |
| |
| |
| public class CodeTemplateSourceViewerConfiguration extends SimpleJavaSourceViewerConfiguration { |
| |
| private static class TemplateVariableTextHover implements ITextHover { |
| |
| private TemplateVariableProcessor fProcessor; |
| |
| /** |
| * @param processor the template variable processor |
| */ |
| public TemplateVariableTextHover(TemplateVariableProcessor processor) { |
| fProcessor= processor; |
| } |
| |
| @Override |
| public String getHoverInfo(ITextViewer textViewer, IRegion subject) { |
| try { |
| IDocument doc= textViewer.getDocument(); |
| int offset= subject.getOffset(); |
| if (offset >= 2 && "${".equals(doc.get(offset-2, 2))) { //$NON-NLS-1$ |
| String varName= doc.get(offset, subject.getLength()); |
| TemplateContextType contextType= fProcessor.getContextType(); |
| if (contextType != null) { |
| Iterator<TemplateVariableResolver> iter= contextType.resolvers(); |
| while (iter.hasNext()) { |
| TemplateVariableResolver var= iter.next(); |
| if (varName.equals(var.getType())) { |
| return var.getDescription(); |
| } |
| } |
| } |
| } |
| } catch (BadLocationException e) { |
| } |
| return null; |
| } |
| |
| @Override |
| public IRegion getHoverRegion(ITextViewer textViewer, int offset) { |
| if (textViewer != null) { |
| return JavaWordFinder.findWord(textViewer.getDocument(), offset); |
| } |
| return null; |
| } |
| |
| } |
| |
| private final TemplateVariableProcessor fProcessor; |
| |
| public CodeTemplateSourceViewerConfiguration(IColorManager colorManager, IPreferenceStore store, ITextEditor editor, TemplateVariableProcessor processor) { |
| super(colorManager, store, editor, IJavaPartitions.JAVA_PARTITIONING, false); |
| fProcessor= processor; |
| } |
| |
| /* |
| * @see SourceViewerConfiguration#getContentAssistant(ISourceViewer) |
| */ |
| @Override |
| public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) { |
| |
| IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore(); |
| JavaTextTools textTools= JavaPlugin.getDefault().getJavaTextTools(); |
| IColorManager manager= textTools.getColorManager(); |
| |
| |
| ContentAssistant assistant= new ContentAssistant(); |
| assistant.setContentAssistProcessor(fProcessor, IDocument.DEFAULT_CONTENT_TYPE); |
| // Register the same processor for strings and single line comments to get code completion at the start of those partitions. |
| assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_STRING); |
| assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_CHARACTER); |
| assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_SINGLE_LINE_COMMENT); |
| assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_MULTI_LINE_COMMENT); |
| assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_DOC); |
| |
| assistant.enableAutoInsert(store.getBoolean(PreferenceConstants.CODEASSIST_AUTOINSERT)); |
| assistant.enableAutoActivation(store.getBoolean(PreferenceConstants.CODEASSIST_AUTOACTIVATION)); |
| assistant.setAutoActivationDelay(store.getInt(PreferenceConstants.CODEASSIST_AUTOACTIVATION_DELAY)); |
| assistant.setProposalPopupOrientation(IContentAssistant.PROPOSAL_OVERLAY); |
| assistant.setContextInformationPopupOrientation(IContentAssistant.CONTEXT_INFO_ABOVE); |
| assistant.setInformationControlCreator(parent -> new DefaultInformationControl(parent, JavaPlugin.getAdditionalInfoAffordanceString())); |
| |
| Color background= getColor(store, PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND, manager); |
| assistant.setContextInformationPopupBackground(background); |
| assistant.setContextSelectorBackground(background); |
| |
| Color foreground= getColor(store, PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND, manager); |
| assistant.setContextInformationPopupForeground(foreground); |
| assistant.setContextSelectorForeground(foreground); |
| |
| return assistant; |
| } |
| |
| private Color getColor(IPreferenceStore store, String key, IColorManager manager) { |
| RGB rgb= PreferenceConverter.getColor(store, key); |
| return manager.getColor(rgb); |
| } |
| |
| /* |
| * @see SourceViewerConfiguration#getTextHover(ISourceViewer, String, int) |
| * @since 2.1 |
| */ |
| @Override |
| public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType, int stateMask) { |
| return new TemplateVariableTextHover(fProcessor); |
| } |
| |
| } |