| /* |
| * 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.codeInsight.daemon.impl.quickfix; |
| |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.codeInsight.CodeInsightUtilCore; |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.codeInsight.intention.IntentionAction; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.ScrollType; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTypesUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class AddVariableInitializerFix implements IntentionAction { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.daemon.impl.quickfix.AddReturnFix"); |
| private final PsiVariable myVariable; |
| |
| public AddVariableInitializerFix(@NotNull PsiVariable variable) { |
| myVariable = variable; |
| } |
| |
| @Override |
| @NotNull |
| public String getText() { |
| return CodeInsightBundle.message("quickfix.add.variable.text", myVariable.getName()); |
| } |
| |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return CodeInsightBundle.message("quickfix.add.variable.family.name"); |
| } |
| |
| @Override |
| public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) { |
| return myVariable.isValid() && |
| myVariable.getManager().isInProject(myVariable) && |
| !myVariable.hasInitializer() && |
| !(myVariable instanceof PsiParameter) |
| ; |
| } |
| |
| @Override |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file) throws IncorrectOperationException { |
| if (!FileModificationService.getInstance().prepareFileForWrite(myVariable.getContainingFile())) return; |
| |
| String initializerText = suggestInitializer(); |
| PsiElementFactory factory = JavaPsiFacade.getInstance(myVariable.getProject()).getElementFactory(); |
| PsiExpression initializer = factory.createExpressionFromText(initializerText, myVariable); |
| if (myVariable instanceof PsiLocalVariable) { |
| ((PsiLocalVariable)myVariable).setInitializer(initializer); |
| } |
| else if (myVariable instanceof PsiField) { |
| ((PsiField)myVariable).setInitializer(initializer); |
| } |
| else { |
| LOG.error("Unknown variable type: "+myVariable); |
| } |
| PsiVariable var = CodeInsightUtilCore.forcePsiPostprocessAndRestoreElement(myVariable); |
| TextRange range = var.getInitializer().getTextRange(); |
| int offset = range.getStartOffset(); |
| editor.getCaretModel().moveToOffset(offset); |
| editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE); |
| editor.getSelectionModel().setSelection(range.getStartOffset(), range.getEndOffset()); |
| } |
| |
| private String suggestInitializer() { |
| PsiType type = myVariable.getType(); |
| return PsiTypesUtil.getDefaultValueOfType(type); |
| } |
| |
| @Override |
| public boolean startInWriteAction() { |
| return true; |
| } |
| } |