| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed 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 com.intellij.html.index; |
| |
| import com.intellij.lang.Language; |
| import com.intellij.lang.html.HTMLLanguage; |
| import com.intellij.lang.xhtml.XHTMLLanguage; |
| import com.intellij.lexer.HtmlHighlightingLexer; |
| import com.intellij.lexer.Lexer; |
| import com.intellij.lexer.XHtmlHighlightingLexer; |
| import com.intellij.openapi.fileTypes.FileTypeManager; |
| import com.intellij.openapi.fileTypes.LanguageFileType; |
| import com.intellij.openapi.fileTypes.StdFileTypes; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.psi.xml.XmlTokenType; |
| import com.intellij.util.containers.HashMap; |
| import com.intellij.util.indexing.*; |
| import com.intellij.util.io.EnumeratorStringDescriptor; |
| import com.intellij.util.io.KeyDescriptor; |
| import com.intellij.xml.util.HtmlUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| |
| /** |
| * @author Eugene.Kudelevsky |
| */ |
| public class Html5CustomAttributesIndex extends ScalarIndexExtension<String> { |
| public static final ID<String, Void> INDEX_ID = ID.create("html5.custom.attributes.index"); |
| |
| private final DataIndexer<String, Void, FileContent> myIndexer = new DataIndexer<String, Void, FileContent>() { |
| @Override |
| @NotNull |
| public Map<String, Void> map(@NotNull FileContent inputData) { |
| CharSequence input = inputData.getContentAsText(); |
| Language language = ((LanguageFileType)inputData.getFileType()).getLanguage(); |
| if (language == HTMLLanguage.INSTANCE || language == XHTMLLanguage.INSTANCE) { |
| final Lexer lexer = (language == HTMLLanguage.INSTANCE ? new HtmlHighlightingLexer(FileTypeManager.getInstance().getStdFileType("CSS")) : new XHtmlHighlightingLexer()); |
| lexer.start(input); |
| Map<String, Void> result = new HashMap<String, Void>(); |
| IElementType tokenType = lexer.getTokenType(); |
| while (tokenType != null) { |
| if (tokenType == XmlTokenType.XML_NAME) { |
| String xmlName = input.subSequence(lexer.getTokenStart(), lexer.getTokenEnd()).toString(); |
| if (HtmlUtil.isCustomHtml5Attribute(xmlName)) { |
| result.put(xmlName, null); |
| } |
| } |
| else if (tokenType == XmlTokenType.XML_DOCTYPE_PUBLIC || tokenType == XmlTokenType.XML_DOCTYPE_SYSTEM) { |
| // this is not an HTML5 context |
| break; |
| } |
| lexer.advance(); |
| tokenType = lexer.getTokenType(); |
| } |
| return result; |
| } |
| return Collections.emptyMap(); |
| } |
| }; |
| |
| @NotNull |
| @Override |
| public ID<String, Void> getName() { |
| return INDEX_ID; |
| } |
| |
| @NotNull |
| @Override |
| public DataIndexer<String, Void, FileContent> getIndexer() { |
| return myIndexer; |
| } |
| |
| @NotNull |
| @Override |
| public KeyDescriptor<String> getKeyDescriptor() { |
| return new EnumeratorStringDescriptor(); |
| } |
| |
| @NotNull |
| @Override |
| public FileBasedIndex.InputFilter getInputFilter() { |
| return new DefaultFileTypeSpecificInputFilter(StdFileTypes.HTML, StdFileTypes.XHTML) { |
| @Override |
| public boolean acceptInput(@NotNull final VirtualFile file) { |
| return file.isInLocalFileSystem(); |
| } |
| }; |
| } |
| |
| @Override |
| public boolean dependsOnFileContent() { |
| return true; |
| } |
| |
| @Override |
| public int getVersion() { |
| return 1; |
| } |
| } |