/*
* Copyright 2000-2017 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.lang.dart.ide.refactoring;
import com.intellij.CommonBundle;
import com.intellij.ide.TitledHandler;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.Caret;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.refactoring.rename.RenameHandler;
import com.intellij.refactoring.util.CommonRefactoringUtil;
import com.jetbrains.lang.dart.DartLanguage;
import com.jetbrains.lang.dart.analyzer.DartAnalysisServerService;
import com.jetbrains.lang.dart.ide.refactoring.status.RefactoringStatus;
import org.jetbrains.annotations.NotNull;
// todo implement ContextAwareActionHandler?
public class DartServerRenameHandler implements RenameHandler, TitledHandler {
@Override
public String getActionTitle() {
return "Dart Rename Refactoring";
}
@Override
public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext context) {
showRenameDialog(project, editor, context);
}
@Override
public void invoke(@NotNull Project project, @NotNull PsiElement[] elements, DataContext context) {
// Dart file rename is not handled using server yet
}
@Override
public boolean isAvailableOnDataContext(@NotNull final DataContext dataContext) {
final Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
if (editor == null) return false;
final VirtualFile file = CommonDataKeys.VIRTUAL_FILE.getData(dataContext);
if (!DartAnalysisServerService.isLocalAnalyzableFile(file)) return false;
final PsiElement psiElement = CommonDataKeys.PSI_ELEMENT.getData(dataContext);
if (psiElement != null) {
return psiElement.getLanguage() == DartLanguage.INSTANCE && !(psiElement instanceof PsiFile);
}
// in case of comment (that also may contain reference that is valid to rename) psiElement is null
final PsiFile psiFile = CommonDataKeys.PSI_FILE.getData(dataContext);
final PsiElement elementAtOffset = psiFile == null ? null : psiFile.findElementAt(editor.getCaretModel().getOffset());
return elementAtOffset != null && elementAtOffset.getLanguage() == DartLanguage.INSTANCE;
}
@Override
public boolean isRenaming(DataContext dataContext) {
return isAvailableOnDataContext(dataContext);
}
private static void showRenameDialog(@NotNull Project project, @NotNull Editor editor, DataContext context) {
final PsiFile psiFile = CommonDataKeys.PSI_FILE.getData(context);
final VirtualFile virtualFile = CommonDataKeys.VIRTUAL_FILE.getData(context);
if (psiFile == null || virtualFile == null) {
return;
}
// Prepare the offset in the editor or of the selected element.
final int offset;
{
final Caret caret = CommonDataKeys.CARET.getData(context);
final PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(context);
if (caret != null) {
offset = caret.getOffset();
}
else if (element != null) {
offset = element.getTextOffset();
}
else {
return;
}
}
// Create the refactoring.
final ServerRenameRefactoring refactoring = new ServerRenameRefactoring(project, virtualFile, offset, 0);
// Validate initial status.
{
final RefactoringStatus initialStatus = refactoring.checkInitialConditions();
if (initialStatus == null) {
return;
}
if (initialStatus.hasError()) {
final String message = initialStatus.getMessage();
assert message != null;
CommonRefactoringUtil.showErrorHint(project, editor, message, CommonBundle.getErrorTitle(), null);
return;
}
}
// Show the rename dialog.
new DartRenameDialog(project, editor, refactoring).show();
}
}