| /* |
| * Copyright 2000-2013 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.changeSignature; |
| |
| import com.intellij.codeInsight.TargetElementUtil; |
| import com.intellij.ide.util.SuperMethodWarningUtil; |
| 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.project.Project; |
| import com.intellij.openapi.ui.DialogWrapper; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.refactoring.HelpID; |
| import com.intellij.refactoring.RefactoringBundle; |
| import com.intellij.refactoring.changeClassSignature.ChangeClassSignatureDialog; |
| import com.intellij.refactoring.util.CommonRefactoringUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class JavaChangeSignatureHandler implements ChangeSignatureHandler { |
| |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) { |
| editor.getScrollingModel().scrollToCaret(ScrollType.MAKE_VISIBLE); |
| PsiElement element = findTargetMember(file, editor); |
| if (element == null) { |
| element = CommonDataKeys.PSI_ELEMENT.getData(dataContext); |
| } |
| invokeOnElement(project, editor, element); |
| } |
| |
| private static void invokeOnElement(Project project, Editor editor, PsiElement element) { |
| if (element instanceof PsiMethod) { |
| final ChangeSignatureGestureDetector detector = ChangeSignatureGestureDetector.getInstance(project); |
| final PsiIdentifier nameIdentifier = ((PsiMethod)element).getNameIdentifier(); |
| if (nameIdentifier != null && detector.isChangeSignatureAvailable(element)) { |
| detector.changeSignature(element.getContainingFile(), false); |
| return; |
| } |
| invoke((PsiMethod) element, project, editor); |
| } |
| else if (element instanceof PsiClass) { |
| invoke((PsiClass) element, editor); |
| } |
| else { |
| String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("error.wrong.caret.position.method.or.class.name")); |
| CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.CHANGE_SIGNATURE); |
| } |
| } |
| |
| public void invoke(@NotNull final Project project, @NotNull final PsiElement[] elements, @Nullable final DataContext dataContext) { |
| if (elements.length != 1) return; |
| Editor editor = dataContext != null ? CommonDataKeys.EDITOR.getData(dataContext) : null; |
| invokeOnElement(project, editor, elements[0]); |
| } |
| |
| @Nullable |
| @Override |
| public String getTargetNotFoundMessage() { |
| return RefactoringBundle.message("error.wrong.caret.position.method.or.class.name"); |
| } |
| |
| private static void invoke(final PsiMethod method, final Project project, @Nullable final Editor editor) { |
| PsiMethod newMethod = SuperMethodWarningUtil.checkSuperMethod(method, RefactoringBundle.message("to.refactor")); |
| if (newMethod == null) return; |
| |
| if (!newMethod.equals(method)) { |
| ChangeSignatureUtil.invokeChangeSignatureOn(newMethod, project); |
| return; |
| } |
| |
| if (!CommonRefactoringUtil.checkReadOnlyStatus(project, method)) return; |
| |
| final PsiClass containingClass = method.getContainingClass(); |
| final PsiReferenceExpression refExpr = editor != null ? TargetElementUtil.findReferenceExpression(editor) : null; |
| final boolean allowDelegation = containingClass != null && !containingClass.isInterface(); |
| final DialogWrapper dialog = new JavaChangeSignatureDialog(project, method, allowDelegation, refExpr == null ? method : refExpr); |
| dialog.show(); |
| } |
| |
| private static void invoke(final PsiClass aClass, Editor editor) { |
| final PsiTypeParameterList typeParameterList = aClass.getTypeParameterList(); |
| Project project = aClass.getProject(); |
| if (typeParameterList == null) { |
| final String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("changeClassSignature.no.type.parameters")); |
| CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.CHANGE_CLASS_SIGNATURE); |
| return; |
| } |
| if (!CommonRefactoringUtil.checkReadOnlyStatus(project, aClass)) return; |
| |
| ChangeClassSignatureDialog dialog = new ChangeClassSignatureDialog(aClass, true); |
| //if (!ApplicationManager.getApplication().isUnitTestMode()){ |
| dialog.show(); |
| //}else { |
| // dialog.showAndGetOk() |
| //} |
| } |
| |
| @Nullable |
| public PsiElement findTargetMember(PsiFile file, Editor editor) { |
| PsiElement element = file.findElementAt(editor.getCaretModel().getOffset()); |
| return findTargetMember(element); |
| } |
| |
| public PsiElement findTargetMember(PsiElement element) { |
| if (PsiTreeUtil.getParentOfType(element, PsiParameterList.class) != null) { |
| return PsiTreeUtil.getParentOfType(element, PsiMethod.class); |
| } |
| |
| final PsiTypeParameterList typeParameterList = PsiTreeUtil.getParentOfType(element, PsiTypeParameterList.class); |
| if (typeParameterList != null) { |
| return PsiTreeUtil.getParentOfType(typeParameterList, PsiMember.class); |
| } |
| |
| final PsiElement elementParent = element.getParent(); |
| if (elementParent instanceof PsiMethod && ((PsiMethod)elementParent).getNameIdentifier()==element) { |
| final PsiClass containingClass = ((PsiMethod)elementParent).getContainingClass(); |
| if (containingClass != null && containingClass.isAnnotationType()) { |
| return null; |
| } |
| return elementParent; |
| } |
| if (elementParent instanceof PsiClass && ((PsiClass)elementParent).getNameIdentifier()==element) { |
| if (((PsiClass)elementParent).isAnnotationType()) { |
| return null; |
| } |
| return elementParent; |
| } |
| |
| final PsiCallExpression expression = PsiTreeUtil.getParentOfType(element, PsiCallExpression.class); |
| if (expression != null) { |
| final PsiExpression qualifierExpression; |
| if (expression instanceof PsiMethodCallExpression) { |
| qualifierExpression = ((PsiMethodCallExpression)expression).getMethodExpression().getQualifierExpression(); |
| } else if (expression instanceof PsiNewExpression) { |
| qualifierExpression = ((PsiNewExpression)expression).getQualifier(); |
| } else { |
| qualifierExpression = null; |
| } |
| if (PsiTreeUtil.isAncestor(qualifierExpression, element, false)) { |
| final PsiExpressionList expressionList = PsiTreeUtil.getParentOfType(qualifierExpression, PsiExpressionList.class); |
| if (expressionList != null) { |
| final PsiElement parent = expressionList.getParent(); |
| if (parent instanceof PsiCallExpression) { |
| return ((PsiCallExpression)parent).resolveMethod(); |
| } |
| } |
| } |
| else { |
| return expression.resolveMethod(); |
| } |
| } |
| |
| final PsiReferenceParameterList referenceParameterList = PsiTreeUtil.getParentOfType(element, PsiReferenceParameterList.class); |
| if (referenceParameterList != null) { |
| final PsiJavaCodeReferenceElement referenceElement = |
| PsiTreeUtil.getParentOfType(referenceParameterList, PsiJavaCodeReferenceElement.class); |
| if (referenceElement != null) { |
| final PsiElement resolved = referenceElement.resolve(); |
| if (resolved instanceof PsiClass) { |
| return resolved; |
| } |
| else if (resolved instanceof PsiMethod) { |
| return resolved; |
| } |
| } |
| } |
| return null; |
| } |
| } |