| /* |
| * Copyright 2000-2014 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 org.jetbrains.plugins.groovy.refactoring.introduce.field; |
| |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.psi.PsiClass; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiModifier; |
| import com.intellij.refactoring.HelpID; |
| import com.intellij.refactoring.introduce.inplace.OccurrencesChooser; |
| import com.intellij.refactoring.introduceField.IntroduceFieldHandler; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariable; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMember; |
| import org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil; |
| import org.jetbrains.plugins.groovy.refactoring.GrRefactoringError; |
| import org.jetbrains.plugins.groovy.refactoring.GroovyRefactoringBundle; |
| import org.jetbrains.plugins.groovy.refactoring.introduce.*; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * @author Maxim.Medvedev |
| */ |
| public class GrIntroduceFieldHandler extends GrIntroduceFieldHandlerBase<GrIntroduceFieldSettings> { |
| |
| @NotNull |
| @Override |
| protected String getRefactoringName() { |
| return IntroduceFieldHandler.REFACTORING_NAME; |
| } |
| |
| @NotNull |
| @Override |
| protected String getHelpID() { |
| return HelpID.INTRODUCE_FIELD; |
| } |
| |
| @Override |
| protected void checkExpression(@NotNull GrExpression selectedExpr) { |
| checkContainingClass(selectedExpr); |
| } |
| |
| private static void checkContainingClass(PsiElement place) { |
| final PsiClass containingClass = PsiUtil.getContextClass(place); |
| if (containingClass == null) throw new GrRefactoringError(GroovyRefactoringBundle.message("cannot.introduce.field.in.script")); |
| if (containingClass.isInterface()) { |
| throw new GrRefactoringError(GroovyRefactoringBundle.message("cannot.introduce.field.in.interface")); |
| } |
| if (PsiUtil.skipParentheses(place, false) == null) { |
| throw new GrRefactoringError(GroovyRefactoringBundle.message("expression.contains.errors")); |
| } |
| } |
| |
| @Override |
| protected void checkVariable(@NotNull GrVariable variable) throws GrRefactoringError { |
| checkContainingClass(variable); |
| } |
| |
| @Override |
| protected void checkStringLiteral(@NotNull StringPartInfo info) throws GrRefactoringError { |
| checkContainingClass(info.getLiteral()); |
| } |
| |
| @Override |
| protected void checkOccurrences(@NotNull PsiElement[] occurrences) { |
| //nothing to do |
| } |
| |
| @NotNull |
| @Override |
| protected GrIntroduceDialog<GrIntroduceFieldSettings> getDialog(@NotNull GrIntroduceContext context) { |
| return new GrIntroduceFieldDialog(context); |
| } |
| |
| @Override |
| public GrVariable runRefactoring(@NotNull GrIntroduceContext context, @NotNull GrIntroduceFieldSettings settings) { |
| return new GrIntroduceFieldProcessor(context, settings).run(); |
| } |
| |
| |
| @Override |
| protected GrAbstractInplaceIntroducer<GrIntroduceFieldSettings> getIntroducer(@NotNull GrIntroduceContext context, |
| OccurrencesChooser.ReplaceChoice choice) { |
| |
| final Ref<GrIntroduceContext> contextRef = Ref.create(context); |
| |
| if (context.getStringPart() != null) { |
| extractStringPart(contextRef); |
| } |
| |
| return new GrInplaceFieldIntroducer(contextRef.get(), choice); |
| } |
| |
| @NotNull |
| @Override |
| protected PsiElement[] findOccurrences(@NotNull GrExpression expression, @NotNull PsiElement scope) { |
| final PsiElement[] occurrences = super.findOccurrences(expression, scope); |
| if (shouldBeStatic(expression, scope)) return occurrences; |
| |
| List<PsiElement> filtered = new ArrayList<PsiElement>(); |
| for (PsiElement occurrence : occurrences) { |
| if (!shouldBeStatic(occurrence, scope)) { |
| filtered.add(occurrence); |
| } |
| } |
| return ContainerUtil.toArray(filtered, new PsiElement[filtered.size()]); |
| } |
| |
| @Nullable |
| static GrMember getContainer(@Nullable PsiElement place, @Nullable PsiElement scope) { |
| while (place != null && place != scope) { |
| place = place.getParent(); |
| if (place instanceof GrMember) return (GrMember)place; |
| } |
| return null; |
| } |
| |
| static boolean shouldBeStatic(PsiElement expr, PsiElement clazz) { |
| final GrMember method = getContainer(expr, clazz); |
| if (method == null) return false; |
| return method.hasModifierProperty(PsiModifier.STATIC); |
| } |
| } |