| /* |
| * Copyright 2000-2009 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.removemiddleman; |
| |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.LangDataKeys; |
| import com.intellij.openapi.actionSystem.PlatformDataKeys; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.ScrollType; |
| import com.intellij.openapi.editor.ScrollingModel; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiField; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiMethod; |
| import com.intellij.refactoring.HelpID; |
| import com.intellij.refactoring.RefactorJBundle; |
| import com.intellij.refactoring.RefactoringActionHandler; |
| import com.intellij.refactoring.util.CommonRefactoringUtil; |
| import com.intellij.refactoring.util.classMembers.MemberInfo; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Set; |
| |
| public class RemoveMiddlemanHandler implements RefactoringActionHandler { |
| private static final String REFACTORING_NAME = RefactorJBundle.message("remove.middleman"); |
| @NonNls static final String REMOVE_METHODS = "refactoring.removemiddleman.remove.methods"; |
| |
| protected static String getRefactoringName() { |
| return REFACTORING_NAME; |
| } |
| |
| protected static String getHelpID() { |
| return HelpID.RemoveMiddleman; |
| } |
| |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) { |
| final ScrollingModel scrollingModel = editor.getScrollingModel(); |
| scrollingModel.scrollToCaret(ScrollType.MAKE_VISIBLE); |
| final PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataContext); |
| if (!(element instanceof PsiField)) { |
| CommonRefactoringUtil.showErrorHint(project, editor, RefactorJBundle.message("cannot.perform.the.refactoring") + RefactorJBundle.message( |
| "the.caret.should.be.positioned.at.the.name.of.the.field.to.be.refactored"), null, getHelpID()); |
| return; |
| } |
| invoke((PsiField)element, editor); |
| } |
| |
| public void invoke(@NotNull Project project, @NotNull PsiElement[] elements, DataContext dataContext) { |
| if (elements.length != 1) { |
| return; |
| } |
| if (elements[0] instanceof PsiField) { |
| Editor editor = CommonDataKeys.EDITOR.getData(dataContext); |
| invoke((PsiField)elements[0], editor); |
| } |
| } |
| |
| private static void invoke(final PsiField field, Editor editor) { |
| final Project project = field.getProject(); |
| final Set<PsiMethod> delegating = DelegationUtils.getDelegatingMethodsForField(field); |
| if (delegating.isEmpty()) { |
| final String message = |
| RefactorJBundle.message("cannot.perform.the.refactoring") + RefactorJBundle.message("field.selected.is.not.used.as.a.delegate"); |
| CommonRefactoringUtil.showErrorHint(project, editor, message, null, getHelpID()); |
| return; |
| } |
| |
| MemberInfo[] infos = new MemberInfo[delegating.size()]; |
| int i = 0; |
| for (PsiMethod method : delegating) { |
| final MemberInfo memberInfo = new MemberInfo(method); |
| memberInfo.setChecked(true); |
| memberInfo.setToAbstract(method.findDeepestSuperMethods().length == 0); |
| infos[i++] = memberInfo; |
| } |
| new RemoveMiddlemanDialog(field, infos).show(); |
| } |
| } |