| /* |
| * 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.psi.impl.source.xml; |
| |
| import com.intellij.lang.ASTNode; |
| import com.intellij.lang.injection.InjectedLanguageManager; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry; |
| import com.intellij.psi.impl.source.resolve.reference.impl.providers.URLReference; |
| import com.intellij.psi.impl.source.tree.TreeElement; |
| import com.intellij.psi.tree.ChildRoleBase; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.psi.xml.*; |
| import com.intellij.util.ArrayUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author Mike |
| */ |
| public class XmlDoctypeImpl extends XmlElementImpl implements XmlDoctype { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.xml.XmlDoctypeImpl"); |
| |
| public XmlDoctypeImpl() { |
| super(XmlElementType.XML_DOCTYPE); |
| } |
| |
| @Override |
| public void clearCaches() { |
| final XmlDocument doc = getContainingDocument(); |
| if (doc != null) { |
| final XmlTag rootTag = doc.getRootTag(); |
| if (rootTag instanceof TreeElement) { |
| ((TreeElement)rootTag).clearCaches(); |
| } |
| } |
| super.clearCaches(); |
| } |
| |
| private XmlDocument getContainingDocument() { |
| for (PsiElement elem = getParent(); elem != null; elem = elem.getParent()) { |
| if (elem instanceof XmlDocument) { |
| return (XmlDocument)elem; |
| } |
| if (elem instanceof PsiFile) { |
| break; // optimization |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public int getChildRole(ASTNode child) { |
| LOG.assertTrue(child.getTreeParent() == this); |
| IElementType i = child.getElementType(); |
| if (i == XmlTokenType.XML_DOCTYPE_PUBLIC) { |
| return XmlChildRole.XML_DOCTYPE_PUBLIC; |
| } |
| else if (i == XmlTokenType.XML_DOCTYPE_SYSTEM) { |
| return XmlChildRole.XML_DOCTYPE_SYSTEM; |
| } |
| else if (i == XmlTokenType.XML_NAME) { |
| return XmlChildRole.XML_NAME; |
| } |
| else { |
| return ChildRoleBase.NONE; |
| } |
| } |
| |
| @Override |
| @Nullable |
| public String getDtdUri() { |
| final PsiElement dtdUrlElement = getDtdUrlElement(); |
| if (dtdUrlElement == null || dtdUrlElement.getTextLength() == 0) return null; |
| return extractValue(dtdUrlElement); |
| } |
| |
| private static String extractValue(PsiElement element) { |
| String text = element.getText(); |
| |
| if (!text.startsWith("\"") && !text.startsWith("\'")) { |
| if (hasInjectedEscapingQuotes(element, text)) return stripInjectedEscapingQuotes(text); |
| } |
| return StringUtil.stripQuotesAroundValue(text); |
| } |
| |
| // TODO: share common code |
| private static String stripInjectedEscapingQuotes(String text) { |
| return text.substring(2, text.length() - 2); |
| } |
| |
| private static boolean hasInjectedEscapingQuotes(PsiElement element, String text) { |
| if (text.startsWith("\\") && text.length() >= 4) { |
| char escapedChar = text.charAt(1); |
| PsiElement context = |
| InjectedLanguageManager.getInstance(element.getContainingFile().getProject()).getInjectionHost(element.getContainingFile()); |
| |
| if (context != null && |
| context.textContains(escapedChar) && |
| context.getText().startsWith(String.valueOf(escapedChar)) && |
| text.endsWith("\\"+escapedChar) |
| ) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| @Nullable |
| public PsiElement getDtdUrlElement() { |
| PsiElement docTypePublic = findChildByRoleAsPsiElement(XmlChildRole.XML_DOCTYPE_PUBLIC); |
| |
| if (docTypePublic != null){ |
| PsiElement element = docTypePublic.getNextSibling(); |
| |
| while(element instanceof PsiWhiteSpace || element instanceof XmlComment){ |
| element = element.getNextSibling(); |
| } |
| |
| //element = element.getNextSibling(); // pass qoutes |
| if (element instanceof XmlToken && ((XmlToken)element).getTokenType() == XmlTokenType.XML_ATTRIBUTE_VALUE_TOKEN){ |
| element = element.getNextSibling(); |
| |
| while(element instanceof PsiWhiteSpace || element instanceof XmlComment){ |
| element = element.getNextSibling(); |
| } |
| |
| if (element instanceof XmlToken && ((XmlToken)element).getTokenType() == XmlTokenType.XML_ATTRIBUTE_VALUE_TOKEN){ |
| return (XmlElement)element; |
| } |
| } |
| } |
| |
| PsiElement docTypeSystem = findChildByRoleAsPsiElement(XmlChildRole.XML_DOCTYPE_SYSTEM); |
| |
| if (docTypeSystem != null){ |
| PsiElement element = docTypeSystem.getNextSibling(); |
| |
| //element = element.getNextSibling(); // pass qoutes |
| while(element instanceof PsiWhiteSpace || element instanceof XmlComment){ |
| element = element.getNextSibling(); |
| } |
| |
| if (element instanceof XmlToken && ((XmlToken)element).getTokenType() == XmlTokenType.XML_ATTRIBUTE_VALUE_TOKEN){ |
| return (XmlElement)element; |
| } |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public XmlElement getNameElement() { |
| return (XmlElement)findChildByRoleAsPsiElement(XmlChildRole.XML_NAME); |
| } |
| |
| @Override |
| @Nullable |
| public String getPublicId() { |
| return getSomeId(XmlChildRole.XML_DOCTYPE_PUBLIC); |
| } |
| |
| @Override |
| public String getSystemId() { |
| return getSomeId(XmlChildRole.XML_DOCTYPE_SYSTEM); |
| } |
| |
| private String getSomeId(final int role) { |
| PsiElement docTypeSystem = findChildByRoleAsPsiElement(role); |
| |
| if (docTypeSystem != null) { |
| PsiElement element = docTypeSystem.getNextSibling(); |
| |
| while (element instanceof PsiWhiteSpace || element instanceof XmlComment) { |
| element = element.getNextSibling(); |
| } |
| |
| //element = element.getNextSibling(); // pass qoutes |
| if (element instanceof XmlToken && ((XmlToken)element).getTokenType() == XmlTokenType.XML_ATTRIBUTE_VALUE_TOKEN) { |
| if (element.getTextLength() != 0) { |
| return extractValue(element); |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public void accept(@NotNull PsiElementVisitor visitor) { |
| if (visitor instanceof XmlElementVisitor) { |
| ((XmlElementVisitor)visitor).visitXmlDoctype(this); |
| } |
| else { |
| visitor.visitElement(this); |
| } |
| } |
| |
| @Override |
| public XmlMarkupDecl getMarkupDecl() { |
| for(PsiElement child = getFirstChild(); child != null; child = child.getNextSibling()){ |
| if (child instanceof XmlMarkupDecl){ |
| return (XmlMarkupDecl)child; |
| } |
| } |
| |
| return null; |
| } |
| |
| @Override |
| @NotNull |
| public PsiReference[] getReferences() { |
| final PsiElement dtdUrlElement = getDtdUrlElement(); |
| |
| PsiReference uriRef = null; |
| if (dtdUrlElement != null) { |
| uriRef = createUrlReference(dtdUrlElement); |
| } |
| |
| final PsiReference[] refs = ReferenceProvidersRegistry.getReferencesFromProviders(this); |
| |
| return uriRef == null ? refs : ArrayUtil.mergeArrays(new PsiReference[] {uriRef}, refs); |
| } |
| |
| protected PsiReference createUrlReference(final PsiElement dtdUrlElement) { |
| return new URLReference(XmlDoctypeImpl.this) { |
| @Override |
| @NotNull |
| public Object[] getVariants() { |
| return findChildByRoleAsPsiElement(XmlChildRole.XML_DOCTYPE_PUBLIC) != null ? |
| super.getVariants(): EMPTY_ARRAY; |
| } |
| @Override |
| @NotNull |
| public String getCanonicalText() { |
| return extractValue(dtdUrlElement); |
| } |
| @Override |
| public TextRange getRangeInElement() { |
| return TextRange.from(dtdUrlElement.getTextRange().getStartOffset() - getTextRange().getStartOffset() + 1, Math.max(dtdUrlElement.getTextRange().getLength() - 2, 0)); |
| } |
| }; |
| } |
| } |