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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.openapi.util.Comparing;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.AbstractElementManipulator;
import com.intellij.psi.xml.XmlText;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
/**
* @author Gregory.Shrago
*/
public class XmlTextManipulator extends AbstractElementManipulator<XmlText> {
@Override
public XmlText handleContentChange(@NotNull XmlText text, @NotNull TextRange range, String newContent) throws IncorrectOperationException {
final String newValue;
final String value = text.getValue();
if (range.equals(getRangeInElement(text))) {
newValue = newContent;
}
else {
final StringBuilder replacement = new StringBuilder(value);
replacement.replace(
range.getStartOffset(),
range.getEndOffset(),
newContent
);
newValue = replacement.toString();
}
if (Comparing.equal(value, newValue)) return text;
if (!newValue.isEmpty()) {
text.setValue(newValue);
}
else {
text.deleteChildRange(text.getFirstChild(), text.getLastChild());
}
//String oldText = text.getText();
//((PsiLanguageInjectionHost)text).updateText(
// oldText.substring(0, range.getStartOffset()) + newContent + oldText.substring(range.getEndOffset()));
return text;
}
@Override
@NotNull
public TextRange getRangeInElement(@NotNull final XmlText text) {
return getValueRange(text);
}
private static TextRange getValueRange(final XmlText xmlText) {
final String value = xmlText.getValue();
final int i = value.indexOf(value);
final int start = xmlText.displayToPhysical(i);
return value.isEmpty() ? new TextRange(start, start) : new TextRange(start, xmlText.displayToPhysical(i + value.length() - 1) + 1);
}
}
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