| /* |
| * Copyright 2005 Sascha Weinreuter |
| * |
| * 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 org.intellij.lang.xpath.psi.impl; |
| |
| import com.intellij.lang.ASTNode; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.util.IncorrectOperationException; |
| import org.intellij.lang.xpath.context.ContextProvider; |
| import org.intellij.lang.xpath.context.NamespaceContext; |
| import org.intellij.lang.xpath.psi.PrefixReference; |
| import org.intellij.lang.xpath.psi.QNameElement; |
| import org.intellij.lang.xpath.psi.XPathNodeTest; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| class PrefixReferenceImpl extends ReferenceBase implements PrefixReference { |
| |
| public PrefixReferenceImpl(QNameElement element, ASTNode nameNode) { |
| super(element, nameNode); |
| } |
| |
| @Nullable |
| public PsiElement resolve() { |
| final ContextProvider provider = getElement().getXPathContext(); |
| final NamespaceContext namespaceContext = provider.getNamespaceContext(); |
| if (namespaceContext != null) { |
| return namespaceContext.resolve(getCanonicalText(), provider.getContextElement()); |
| } else { |
| return null; |
| } |
| } |
| |
| @SuppressWarnings({"ConstantConditions"}) |
| @Override |
| public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException { |
| final XPathNodeTest expr = |
| (XPathNodeTest)XPathChangeUtil.createExpression(getElement(), newElementName + ":x").getFirstChild().getChildren()[1]; |
| final ASTNode nameNode = getNameNode(); |
| nameNode.getTreeParent().replaceChild(nameNode, ((PrefixedNameImpl)expr.getQName()).getPrefixNode()); |
| return getElement(); |
| } |
| |
| @NotNull |
| public Object[] getVariants() { |
| // handled in XPathCompletionData |
| return EMPTY_ARRAY; |
| } |
| |
| public boolean isSoft() { |
| if ("*".equals(getPrefix())) { |
| return true; |
| } |
| final ContextProvider context = getElement().getXPathContext(); |
| if (context instanceof ContextProvider.DefaultProvider) return true; |
| |
| return !canResolve(); |
| } |
| |
| public String getPrefix() { |
| return getCanonicalText(); |
| } |
| |
| public boolean isUnresolved() { |
| if (!canResolve()) return true; |
| |
| if (resolve() != null) { |
| return false; |
| } |
| |
| final ContextProvider provider = getElement().getXPathContext(); |
| final NamespaceContext namespaceContext = provider.getNamespaceContext(); |
| assert namespaceContext != null; |
| |
| final String prefix = getCanonicalText(); |
| return !namespaceContext.getKnownPrefixes(provider.getContextElement()).contains(prefix); |
| } |
| |
| private boolean canResolve() { |
| final NamespaceContext namespaceContext = getElement().getXPathContext().getNamespaceContext(); |
| return namespaceContext != null && !"xml".equals(getCanonicalText()); |
| } |
| } |