| /* |
| * Copyright 2000-2013 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.xml.util; |
| |
| import com.intellij.openapi.paths.PathReference; |
| import com.intellij.openapi.paths.PathReferenceProvider; |
| import com.intellij.openapi.paths.DynamicContextProvider; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.openapi.extensions.Extensions; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiReference; |
| import com.intellij.psi.ElementManipulators; |
| import com.intellij.psi.impl.source.resolve.reference.impl.providers.FileReference; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.List; |
| |
| /** |
| * @author Dmitry Avdeev |
| */ |
| public class AnchorPathReferenceProvider implements PathReferenceProvider { |
| |
| @Override |
| public boolean createReferences(@NotNull final PsiElement psiElement, @NotNull final List<PsiReference> references, final boolean soft) { |
| |
| final TextRange range = ElementManipulators.getValueTextRange(psiElement); |
| final String elementText = psiElement.getText(); |
| final int anchorOffset = elementText.indexOf('#'); |
| if (anchorOffset == -1) { |
| return false; |
| } |
| final boolean dynamic = isDynamic(psiElement, anchorOffset + 1, elementText); |
| if (dynamic) { |
| return false; |
| } |
| |
| FileReference fileReference = null; |
| if (range.getStartOffset() != anchorOffset) { |
| fileReference = findFileReference(references); |
| if (fileReference == null || fileReference.resolve() == null) { |
| return false; |
| } |
| } |
| final int pos = elementText.indexOf('?', anchorOffset); |
| final String anchor; |
| try { |
| int endIndex = pos != -1 ? pos : range.getEndOffset(); |
| if (endIndex <= anchorOffset) { |
| endIndex = anchorOffset + 1; |
| } |
| anchor = elementText.substring(anchorOffset + 1, endIndex); |
| } |
| catch (StringIndexOutOfBoundsException e) { |
| throw new RuntimeException(elementText, e); |
| } |
| final AnchorReferenceImpl anchorReference = new AnchorReferenceImpl(anchor, fileReference, psiElement, anchorOffset + 1, soft); |
| references.add(anchorReference); |
| return false; |
| } |
| |
| private static boolean isDynamic(final PsiElement psiElement, final int offset, final String elementText) { |
| for (DynamicContextProvider provider: Extensions.getExtensions(DynamicContextProvider.EP_NAME)) { |
| final int dynamicOffset = provider.getOffset(psiElement, offset, elementText); |
| if (dynamicOffset != offset) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Nullable |
| private static FileReference findFileReference(final List<PsiReference> references) { |
| FileReference fileReference = null; |
| for (PsiReference reference : references) { |
| if (reference instanceof FileReference) { |
| fileReference = ((FileReference)reference).getFileReferenceSet().getLastReference(); |
| break; |
| } |
| } |
| return fileReference; |
| } |
| |
| @Override |
| public PathReference getPathReference(@NotNull final String path, @NotNull final PsiElement element) { |
| return null; |
| } |
| } |