| /******************************************************************************* |
| * Copyright (c) 2014 Christian Pontesegger and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License_Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Christian Pontesegger - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ease.ui.completion.provider; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map.Entry; |
| import java.util.stream.Collectors; |
| |
| import org.eclipse.ease.ICompletionContext; |
| import org.eclipse.ease.modules.IEnvironment; |
| import org.eclipse.ease.ui.Activator; |
| import org.eclipse.ease.ui.completion.ScriptCompletionProposal; |
| import org.eclipse.ease.ui.completion.tokenizer.TokenList; |
| import org.eclipse.jface.viewers.StyledString; |
| |
| /** |
| * Provides completion proposals for variables stored in a script engine. |
| */ |
| public class VariablesCompletionProvider extends AbstractCompletionProvider { |
| |
| @Override |
| public boolean isActive(final ICompletionContext context) { |
| return super.isActive(context) && (context.getScriptEngine() != null) && ((context.getTokens().size() <= 1) || (isParameter(context))) |
| && !isStringLiteral(context); |
| } |
| |
| private boolean isParameter(ICompletionContext context) { |
| final TokenList candidates = new TokenList(context.getTokens()).getFromLast("("); |
| |
| return !candidates.isEmpty(); |
| } |
| |
| @Override |
| protected void prepareProposals(final ICompletionContext context) { |
| final Collection<Entry<String, Object>> elements = context.getScriptEngine().getVariables().entrySet(); |
| |
| final List<Entry<String, Object>> filteredEntries = elements.stream().filter(e -> !e.getKey().startsWith(IEnvironment.MODULE_PREFIX)) |
| .filter(e -> matchesFilterIgnoreCase(e.getKey())).collect(Collectors.toList()); |
| |
| for (final Entry<String, Object> entry : filteredEntries) { |
| final StyledString styledString = new StyledString(entry.getKey()); |
| styledString.append(String.format(" : %s", getClassName(entry.getValue())), StyledString.DECORATIONS_STYLER); |
| styledString.append(" - Variable", StyledString.QUALIFIER_STYLER); |
| |
| addProposal(styledString, entry.getKey(), new DescriptorImageResolver(Activator.getLocalImageDescriptor("/icons/eobj16/debug_local_variable.png")), |
| ScriptCompletionProposal.ORDER_FIELD, null); |
| } |
| } |
| |
| private String getClassName(Object entry) { |
| return (entry == null) ? "null" : entry.getClass().getSimpleName(); |
| } |
| } |