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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.jetbrains.python.magicLiteral;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.refactoring.rename.RenameDialog;
import com.intellij.refactoring.rename.RenameHandler;
import com.jetbrains.python.psi.PyStringLiteralExpression;
import com.jetbrains.python.psi.StringLiteralExpression;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author traff
*/
public class PyMagicLiteralRenameHandler implements RenameHandler {
@Override
public boolean isAvailableOnDataContext(DataContext dataContext) {
final Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
if (editor == null) {
return false;
}
final PsiFile file = CommonDataKeys.PSI_FILE.getData(dataContext);
if (file == null) {
return false;
}
final PsiElement element = getElement(file, editor);
if (element == null || !PyMagicLiteralTools.isMagicLiteral(element)) {
return false;
}
return true;
}
@Nullable
private static PsiElement getElement(PsiFile file, Editor editor) {
PsiElement element = file.findElementAt(editor.getCaretModel().getCurrentCaret().getOffset());
if (element instanceof PyStringLiteralExpression) {
return element;
}
return PsiTreeUtil.getParentOfType(element, StringLiteralExpression.class);
}
@Override
public boolean isRenaming(DataContext dataContext) {
return isAvailableOnDataContext(dataContext);
}
@Override
public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) {
PsiElement element = getElement(file, editor);
if (element == null) {
return;
}
RenameDialog.showRenameDialog(dataContext, new RenameDialog(project, element, null, editor));
}
@Override
public void invoke(@NotNull Project project, @NotNull PsiElement[] elements, DataContext dataContext) {
throw new UnsupportedOperationException();
}
}
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