| /* |
| * 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.html.knockout; |
| |
| import java.awt.Color; |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.io.StringWriter; |
| import java.io.Writer; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.nio.charset.Charset; |
| import java.util.Iterator; |
| import javax.swing.ImageIcon; |
| import org.netbeans.modules.csl.api.OffsetRange; |
| import org.netbeans.modules.html.editor.lib.api.HtmlSource; |
| import org.netbeans.modules.html.editor.lib.api.SyntaxAnalyzer; |
| import org.netbeans.modules.html.editor.lib.api.elements.Element; |
| import static org.netbeans.modules.html.editor.lib.api.elements.ElementType.CLOSE_TAG; |
| import static org.netbeans.modules.html.editor.lib.api.elements.ElementType.OPEN_TAG; |
| import org.netbeans.modules.html.editor.lib.api.elements.OpenTag; |
| import org.netbeans.modules.parsing.api.Snapshot; |
| import org.netbeans.modules.web.common.api.LexerUtils; |
| import org.openide.util.ImageUtilities; |
| import org.openide.util.NbBundle; |
| |
| /** |
| * |
| * @author marekfukala |
| */ |
| public class KOUtils { |
| |
| public static final String JAVASCRIPT_MIMETYPE = "text/javascript"; //NOI18N |
| |
| public static final String KO_DATA_BIND_MIMETYPE = "text/ko-data-bind"; //NOI18N |
| |
| public static final String KO_DATA_BIND_ATTR_NAME = "data-bind"; //NOI18N |
| |
| public static final String KO_PARAMS_ATTR_NAME = "params"; //NOI18N |
| |
| public static final ImageIcon KO_ICON = |
| ImageUtilities.loadImageIcon("org/netbeans/modules/html/knockout/knockout-icon.png", false); // NOI18N |
| |
| |
| public static final Color KO_COLOR = Color.green.darker(); |
| |
| private static final int URL_CONNECTION_TIMEOUT = 1000; //ms |
| private static final int URL_READ_TIMEOUT = URL_CONNECTION_TIMEOUT * 3; //ms |
| /** |
| * Gets document range for the given from and to embedded offsets. |
| * |
| * Returns null if the converted document offsets are invalid. |
| */ |
| public static OffsetRange getValidDocumentOffsetRange(int efrom, int eto, Snapshot snapshot) { |
| if(efrom == -1 || eto == -1) { |
| throw new IllegalArgumentException(String.format("bad range: %s - %s", efrom, eto)); |
| } |
| int dfrom = snapshot.getOriginalOffset(efrom); |
| int dto = snapshot.getOriginalOffset(eto); |
| if(dfrom == -1 || dto == -1) { |
| return null; |
| } |
| if(dfrom > dto) { |
| return null; |
| } |
| |
| return new OffsetRange(dfrom, dto); |
| } |
| |
| public static String getContentAsString(URL url, Charset charset) throws IOException { |
| StringWriter writer = new StringWriter(); |
| loadURL(url, writer, charset); |
| return writer.getBuffer().toString(); |
| |
| } |
| |
| public static void loadURL(URL url, Writer writer, Charset charset) throws IOException { |
| if (charset == null) { |
| charset = Charset.defaultCharset(); |
| } |
| URLConnection con = url.openConnection(); |
| con.setConnectTimeout(URL_CONNECTION_TIMEOUT); |
| con.setReadTimeout(URL_READ_TIMEOUT); |
| con.connect(); |
| Reader r = new InputStreamReader(new BufferedInputStream(con.getInputStream()), charset); |
| char[] buf = new char[2048]; |
| int read; |
| while ((read = r.read(buf)) != -1) { |
| writer.write(buf, 0, read); |
| } |
| r.close(); |
| } |
| |
| public static String getFileContent(File file) throws IOException { |
| Reader r = new InputStreamReader(new FileInputStream(file), "UTF-8"); // NOI18N |
| StringBuilder sb = new StringBuilder(); |
| try { |
| char[] buf = new char[2048]; |
| int read; |
| while ((read = r.read(buf)) != -1) { |
| sb.append(buf, 0, read); |
| } |
| } finally { |
| r.close(); |
| } |
| return sb.toString(); |
| } |
| |
| /** |
| * Finds the "content" section of the KO binding documentation. |
| */ |
| @NbBundle.Messages("cannot_load_help=Cannot load help.") |
| public static String getKnockoutDocumentationContent(String content) { |
| int stripFrom = 0; |
| int stripTo = content.length(); |
| HtmlSource source = new HtmlSource(content); |
| Iterator<Element> elementsIterator = SyntaxAnalyzer.create(source).elementsIterator(); |
| |
| boolean inContent = false; |
| int depth = 0; |
| elements: while (elementsIterator.hasNext()) { |
| Element element = elementsIterator.next(); |
| switch (element.type()) { |
| case OPEN_TAG: |
| OpenTag ot = (OpenTag) element; |
| if (LexerUtils.equals("div", ot.name(), true, true)) { //NOI18N |
| org.netbeans.modules.html.editor.lib.api.elements.Attribute attribute = ot.getAttribute("class"); //NOI18N |
| if (attribute != null) { |
| CharSequence unquotedValue = attribute.unquotedValue(); |
| if (unquotedValue != null && LexerUtils.equals("content", unquotedValue, true, true)) { //NOI18N |
| //found the page content |
| stripFrom = element.to(); |
| inContent = true; |
| } |
| } |
| } |
| if(inContent) { |
| depth++; |
| } |
| break; |
| case CLOSE_TAG: |
| if(inContent) { |
| depth--; |
| if(depth == 0) { |
| //end of the content |
| stripTo = element.from(); |
| break elements; |
| } |
| } |
| break; |
| } |
| } |
| |
| return content.substring(stripFrom, stripTo); |
| } |
| |
| |
| } |