| /* |
| * 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.util.xml.impl; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.util.NullableFactory; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.XmlElementFactory; |
| import com.intellij.psi.xml.XmlDocument; |
| import com.intellij.psi.xml.XmlFile; |
| import com.intellij.psi.xml.XmlTag; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.xml.DomElement; |
| import com.intellij.util.xml.DomFileElement; |
| import com.intellij.util.xml.DomNameStrategy; |
| import com.intellij.util.xml.EvaluatedXmlName; |
| import com.intellij.util.xml.stubs.ElementStub; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.List; |
| |
| /** |
| * @author peter |
| */ |
| public class DomRootInvocationHandler extends DomInvocationHandler<AbstractDomChildDescriptionImpl, ElementStub> { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.util.xml.impl.DomRootInvocationHandler"); |
| private final DomFileElementImpl<?> myParent; |
| |
| public DomRootInvocationHandler(final Class aClass, |
| final RootDomParentStrategy strategy, |
| @NotNull final DomFileElementImpl fileElement, |
| @NotNull final EvaluatedXmlName tagName, |
| @Nullable ElementStub stub |
| ) { |
| super(aClass, strategy, tagName, new AbstractDomChildDescriptionImpl(aClass) { |
| @Override |
| @NotNull |
| public List<? extends DomElement> getValues(@NotNull final DomElement parent) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int compareTo(final AbstractDomChildDescriptionImpl o) { |
| throw new UnsupportedOperationException(); |
| } |
| }, fileElement.getManager(), true, stub); |
| myParent = fileElement; |
| } |
| |
| @Override |
| public void undefineInternal() { |
| try { |
| final XmlTag tag = getXmlTag(); |
| if (tag != null) { |
| deleteTag(tag); |
| detach(); |
| fireUndefinedEvent(); |
| } |
| } |
| catch (Exception e) { |
| LOG.error(e); |
| } |
| } |
| |
| public boolean equals(final Object obj) { |
| if (!(obj instanceof DomRootInvocationHandler)) return false; |
| |
| final DomRootInvocationHandler handler = (DomRootInvocationHandler)obj; |
| return myParent.equals(handler.myParent); |
| } |
| |
| public int hashCode() { |
| return myParent.hashCode(); |
| } |
| |
| @Override |
| public boolean exists() { |
| return getStub() != null || |
| getXmlElement() != null; |
| } |
| |
| @Override |
| @NotNull |
| public String getXmlElementNamespace() { |
| return getXmlName().getNamespace(getFile(), getFile()); |
| } |
| |
| @Override |
| protected String checkValidity() { |
| final XmlTag tag = (XmlTag)getXmlElement(); |
| if (tag != null && !tag.isValid()) { |
| return "invalid root tag"; |
| } |
| |
| final String s = myParent.checkValidity(); |
| if (s != null) { |
| return "root: " + s; |
| } |
| |
| return null; |
| } |
| |
| @Override |
| @NotNull |
| public DomFileElementImpl getParent() { |
| return myParent; |
| } |
| |
| @Override |
| public DomElement createPathStableCopy() { |
| final DomFileElement stableCopy = myParent.createStableCopy(); |
| return getManager().createStableValue(new NullableFactory<DomElement>() { |
| @Override |
| public DomElement create() { |
| return stableCopy.isValid() ? stableCopy.getRootElement() : null; |
| } |
| }); |
| } |
| |
| @Override |
| protected XmlTag setEmptyXmlTag() { |
| final XmlTag[] result = new XmlTag[]{null}; |
| getManager().runChange(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| final String namespace = getXmlElementNamespace(); |
| @NonNls final String nsDecl = StringUtil.isEmpty(namespace) ? "" : " xmlns=\"" + namespace + "\""; |
| final XmlFile xmlFile = getFile(); |
| final XmlTag tag = XmlElementFactory.getInstance(xmlFile.getProject()).createTagFromText("<" + getXmlElementName() + nsDecl + "/>"); |
| result[0] = ((XmlDocument)xmlFile.getDocument().replace(((XmlFile)tag.getContainingFile()).getDocument())).getRootTag(); |
| } |
| catch (IncorrectOperationException e) { |
| LOG.error(e); |
| } |
| } |
| }); |
| return result[0]; |
| } |
| |
| @Override |
| @NotNull |
| public final DomNameStrategy getNameStrategy() { |
| final Class<?> rawType = getRawType(); |
| final DomNameStrategy strategy = DomImplUtil.getDomNameStrategy(rawType, isAttribute()); |
| if (strategy != null) { |
| return strategy; |
| } |
| return DomNameStrategy.HYPHEN_STRATEGY; |
| } |
| |
| |
| } |