001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * If you wish your version of this file to be governed by only the CDDL
025: * or only the GPL Version 2, indicate your decision by adding
026: * "[Contributor] elects to include this software in this distribution
027: * under the [CDDL or GPL Version 2] license." If you do not indicate a
028: * single choice of license, a recipient has the option to distribute
029: * your version of this file under either the CDDL, the GPL Version 2 or
030: * to extend the choice of license to its licensees as provided above.
031: * However, if you add GPL Version 2 code and therefore, elected the GPL
032: * Version 2 license, then the option applies only if the new code is
033: * made subject to such option by the copyright holder.
034: *
035: * Contributor(s):
036: *
037: * Portions Copyrighted 2007 Sun Microsystems, Inc.
038: */
039:
040: package org.netbeans.modules.gsfret.hints.infrastructure;
041:
042: import java.util.ArrayList;
043: import java.util.List;
044: import javax.swing.text.Document;
045: import org.netbeans.modules.gsf.api.HintsProvider;
046: import org.netbeans.napi.gsfret.source.CompilationInfo;
047: import org.netbeans.napi.gsfret.source.support.CaretAwareSourceTaskFactory;
048: import org.netbeans.modules.gsfret.editor.semantic.ScanningCancellableTask;
049: import org.netbeans.napi.gsfret.source.support.SelectionAwareSourceTaskFactory;
050: import org.netbeans.spi.editor.hints.ErrorDescription;
051: import org.netbeans.spi.editor.hints.HintsController;
052:
053: /**
054: *
055: * @author Tor Norbye
056: */
057: public class SelectionHintsTask extends
058: ScanningCancellableTask<CompilationInfo> {
059:
060: public SelectionHintsTask() {
061: }
062:
063: public void run(CompilationInfo info) throws Exception {
064: resume();
065:
066: Document doc = info.getDocument();
067: if (doc == null) {
068: return;
069: }
070:
071: int[] range = SelectionAwareSourceTaskFactory
072: .getLastSelection(info.getFileObject());
073:
074: if (range == null || range.length != 2 || range[0] == -1
075: || range[1] == -1) {
076: return;
077: }
078:
079: int start = range[0];
080: int end = range[1];
081:
082: HintsProvider provider = SuggestionsTask.getHintsProvider(doc,
083: start);
084:
085: if (provider == null) {
086: return;
087: }
088:
089: List<ErrorDescription> result = new ArrayList<ErrorDescription>();
090:
091: if (start != end) {
092: provider.computeSelectionHints(info, result, Math.min(
093: start, end), Math.max(start, end));
094: }
095:
096: if (isCancelled()) {
097: return;
098: }
099:
100: HintsController.setErrors(info.getFileObject(),
101: SelectionHintsTask.class.getName(), result);
102: }
103: }
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