| /* |
| * 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. |
| */ |
| |
| /** |
| * @author cdr |
| */ |
| package com.intellij.codeInsight.intention.impl; |
| |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.codeInsight.daemon.impl.quickfix.SimplifyBooleanExpressionFix; |
| import com.intellij.codeInsight.intention.IntentionAction; |
| 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.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class SimplifyBooleanExpressionAction implements IntentionAction{ |
| @Override |
| @NotNull |
| public String getText() { |
| return getFamilyName(); |
| } |
| |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return SimplifyBooleanExpressionFix.FAMILY_NAME; |
| } |
| |
| @Override |
| public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) { |
| PsiExpression expression = getExpressionToSimplify(editor, file); |
| return expression != null && SimplifyBooleanExpressionFix.canBeSimplified(expression); |
| } |
| |
| private static PsiExpression getExpressionToSimplify(final Editor editor, final PsiFile file) { |
| int offset = editor.getCaretModel().getOffset(); |
| PsiElement element = file.findElementAt(offset); |
| if (element == null) return null; |
| PsiExpression expression = PsiTreeUtil.getParentOfType(element, PsiExpression.class); |
| PsiElement parent = expression; |
| while (parent instanceof PsiExpression && (PsiType.BOOLEAN.equals(((PsiExpression)parent).getType()) || parent instanceof PsiConditionalExpression)) { |
| expression = (PsiExpression)parent; |
| parent = parent.getParent(); |
| } |
| return expression; |
| } |
| |
| @Override |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file) throws IncorrectOperationException { |
| if (!FileModificationService.getInstance().prepareFileForWrite(file)) return; |
| PsiExpression expression = getExpressionToSimplify(editor, file); |
| SimplifyBooleanExpressionFix.simplifyExpression(expression); |
| } |
| |
| @Override |
| public boolean startInWriteAction() { |
| return true; |
| } |
| } |