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/*
* 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.resolve.reference.impl.manipulators;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.AbstractElementManipulator;
import com.intellij.psi.PsiElement;
import com.intellij.psi.impl.CheckUtil;
import com.intellij.psi.impl.source.tree.CompositeElement;
import com.intellij.psi.impl.source.tree.Factory;
import com.intellij.psi.impl.source.tree.LeafElement;
import com.intellij.psi.impl.source.tree.SharedImplUtil;
import com.intellij.psi.tree.IElementType;
import com.intellij.psi.xml.XmlAttributeValue;
import com.intellij.psi.xml.XmlTokenType;
import com.intellij.util.CharTable;
import com.intellij.util.IncorrectOperationException;
import com.intellij.xml.util.XmlUtil;
import org.jetbrains.annotations.NotNull;
/**
* Created by IntelliJ IDEA.
* User: ik
* Date: 06.01.2004
* Time: 20:00:23
* To change this template use Options | File Templates.
*/
public class XmlAttributeValueManipulator extends AbstractElementManipulator<XmlAttributeValue> {
private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.resolve.reference.impl.manipulators.XmlAttributeValueManipulator");
@Override
public XmlAttributeValue handleContentChange(@NotNull XmlAttributeValue element, @NotNull TextRange range, String newContent) throws IncorrectOperationException {
return handleContentChange(element, range, newContent, XmlTokenType.XML_ATTRIBUTE_VALUE_TOKEN);
}
public static <T extends PsiElement> T handleContentChange(T element,
TextRange range,
String newContent,
final IElementType tokenType) {
CheckUtil.checkWritable(element);
final CompositeElement attrNode = (CompositeElement)element.getNode();
final ASTNode valueNode = attrNode.findLeafElementAt(range.getStartOffset());
LOG.assertTrue(valueNode != null, "Leaf not found in " + attrNode + " at offset " + range.getStartOffset() + " in element " + element);
final PsiElement elementToReplace = valueNode.getPsi();
String text;
try {
text = elementToReplace.getText();
final int offsetInParent = elementToReplace.getStartOffsetInParent();
String textBeforeRange = text.substring(0, range.getStartOffset() - offsetInParent);
String textAfterRange = text.substring(range.getEndOffset()- offsetInParent, text.length());
text = textBeforeRange + XmlUtil.escape(newContent) + textAfterRange;
} catch(StringIndexOutOfBoundsException e) {
LOG.error("Range: " + range + " in text: '" + element.getText() + "'", e);
throw e;
}
final CharTable charTableByTree = SharedImplUtil.findCharTableByTree(attrNode);
final LeafElement newValueElement = Factory.createSingleLeafElement(tokenType, text, charTableByTree, element.getManager());
attrNode.replaceChildInternal(valueNode, newValueElement);
return element;
}
@Override
@NotNull
public TextRange getRangeInElement(@NotNull final XmlAttributeValue xmlAttributeValue) {
final PsiElement child = xmlAttributeValue.getFirstChild();
if (child == null) {
return TextRange.EMPTY_RANGE;
}
final ASTNode node = child.getNode();
assert node != null;
final int textLength = xmlAttributeValue.getTextLength();
if (node.getElementType() == XmlTokenType.XML_ATTRIBUTE_VALUE_START_DELIMITER) {
return new TextRange(1, textLength <= 1 ? 1 : textLength - 1);
} else {
return new TextRange(0, textLength);
}
}
}
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