| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.netbeans.modules.css.visual; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import javax.lang.model.util.Elements; |
| import org.netbeans.api.editor.mimelookup.MimeRegistration; |
| import org.netbeans.api.editor.mimelookup.MimeRegistrations; |
| import org.netbeans.modules.html.editor.api.gsf.HtmlParserResult; |
| import org.netbeans.modules.html.editor.lib.api.elements.Element; |
| import org.netbeans.modules.html.editor.lib.api.elements.ElementType; |
| import org.netbeans.modules.html.editor.lib.api.elements.ElementUtils; |
| import org.netbeans.modules.html.editor.lib.api.elements.Node; |
| import org.netbeans.modules.html.editor.lib.api.elements.OpenTag; |
| import org.netbeans.modules.parsing.api.Snapshot; |
| import org.netbeans.modules.parsing.spi.CursorMovedSchedulerEvent; |
| import org.netbeans.modules.parsing.spi.ParserResultTask; |
| import org.netbeans.modules.parsing.spi.Scheduler; |
| import org.netbeans.modules.parsing.spi.SchedulerEvent; |
| import org.netbeans.modules.parsing.spi.SchedulerTask; |
| import org.netbeans.modules.parsing.spi.TaskFactory; |
| import org.openide.filesystems.FileObject; |
| |
| /** |
| * |
| * @author Marek Fukala |
| */ |
| public final class HtmlEditorSourceTask extends ParserResultTask<HtmlParserResult> { |
| |
| private static final Logger LOGGER = Logger.getLogger(HtmlEditorSourceTask.class.getSimpleName()); |
| |
| private static HtmlSourceElementHandle activeElement; |
| |
| @MimeRegistrations({ |
| @MimeRegistration(mimeType = "text/html", service = TaskFactory.class) |
| }) |
| public static class Factory extends TaskFactory { |
| |
| @Override |
| public Collection<? extends SchedulerTask> create(Snapshot snapshot) { |
| return Collections.singletonList(new HtmlEditorSourceTask()); |
| } |
| } |
| |
| @Override |
| public int getPriority() { |
| return 500; |
| } |
| |
| @Override |
| public Class<? extends Scheduler> getSchedulerClass() { |
| return Scheduler.CURSOR_SENSITIVE_TASK_SCHEDULER; |
| } |
| |
| @Override |
| public void cancel() { |
| //no-op |
| } |
| |
| @Override |
| public void run(HtmlParserResult result, SchedulerEvent event) { |
| FileObject file = result.getSnapshot().getSource().getFileObject(); |
| if (file == null) { |
| LOGGER.log(Level.FINE, "null file, exit"); |
| return; |
| } |
| |
| if (!file.isValid()) { |
| LOGGER.log(Level.FINE, "invalid file, exit"); |
| return; |
| } |
| |
| if (event == null) { |
| LOGGER.log(Level.FINE, "run() - NULL SchedulerEvent?!?!?!"); |
| } else { |
| if (event instanceof CursorMovedSchedulerEvent) { |
| setActiveElement(result, ((CursorMovedSchedulerEvent) event).getCaretOffset()); |
| return ; |
| } else { |
| LOGGER.log(Level.FINE, "run() - !(event instanceof CursorMovedSchedulerEvent)"); |
| } |
| } |
| |
| //error - clear the active element |
| activeElement = null; |
| } |
| |
| |
| private void setActiveElement(HtmlParserResult result, int caretOffset) { |
| Snapshot snapshot = result.getSnapshot(); |
| FileObject file = snapshot.getSource().getFileObject(); |
| int embeddedCaretOffset = snapshot.getEmbeddedOffset(caretOffset); |
| if(embeddedCaretOffset == -1) { |
| return ; |
| } |
| |
| //Bug 222535 - Create rule dialog is populated with parent element |
| Element findBack = result.findByPhysicalRange(embeddedCaretOffset, false); |
| if(findBack != null |
| && (findBack.type() == ElementType.OPEN_TAG || findBack.type() == ElementType.CLOSE_TAG) |
| && findBack.to() == embeddedCaretOffset) { |
| // Situation: |
| // ... <div class="x">| or ... </div>| |
| // in this case use the element before the caret |
| embeddedCaretOffset--; |
| } |
| |
| Node node = result.findBySemanticRange(embeddedCaretOffset, true); |
| if (node != null) { |
| if (node.type() == ElementType.OPEN_TAG) { //may be root node! |
| activeElement = new HtmlSourceElementHandle((OpenTag)node, snapshot, file); |
| return ; |
| } |
| } |
| //no active element |
| activeElement = null; |
| } |
| |
| /** |
| * Gets the active (under caret) html source element from the last focused |
| * file with html content. |
| * |
| */ |
| public static HtmlSourceElementHandle getElement() { |
| return activeElement; |
| } |
| |
| } |