| /* |
| * Copyright 2000-2011 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.refactoring.typeMigration.actions; |
| |
| import com.intellij.codeInsight.TargetElementUtilBase; |
| import com.intellij.ide.DataManager; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.PlatformDataKeys; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.refactoring.RefactoringActionHandler; |
| import com.intellij.refactoring.actions.BaseRefactoringAction; |
| import com.intellij.refactoring.typeMigration.ChangeTypeSignatureHandler; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class ChangeTypeSignatureAction extends BaseRefactoringAction { |
| public boolean isAvailableInEditorOnly() { |
| return false; |
| } |
| |
| public boolean isEnabledOnElements(@NotNull PsiElement[] elements) { |
| Project currProject = CommonDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext()); |
| |
| if (currProject == null) { |
| return false; |
| } |
| |
| if (elements.length > 1) return false; |
| |
| for (PsiElement element : elements) { |
| if (!(element instanceof PsiMethod || element instanceof PsiVariable)) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| protected boolean isAvailableOnElementInEditorAndFile(@NotNull final PsiElement element, @NotNull final Editor editor, @NotNull PsiFile file, @NotNull DataContext context) { |
| final int offset = TargetElementUtilBase.adjustOffset(file, editor.getDocument(), editor.getCaretModel().getOffset()); |
| final PsiElement psiElement = file.findElementAt(offset); |
| final PsiReferenceParameterList referenceParameterList = PsiTreeUtil.getParentOfType(psiElement, PsiReferenceParameterList.class); |
| if (referenceParameterList != null) { |
| return referenceParameterList.getTypeArguments().length > 0; |
| } |
| return PsiTreeUtil.getParentOfType(psiElement, PsiTypeElement.class) != null; |
| } |
| |
| public RefactoringActionHandler getHandler(@NotNull DataContext dataContext) { |
| return new ChangeTypeSignatureHandler(); |
| } |
| } |