| /* |
| * 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 com.intellij.codeInsight.intention.impl; |
| |
| import com.intellij.codeInsight.ChangeContextUtil; |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.codeInsight.generation.GenerateMembersUtil; |
| import com.intellij.codeInsight.generation.OverrideImplementUtil; |
| import com.intellij.ide.util.MethodCellRenderer; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.application.Result; |
| import com.intellij.openapi.command.WriteCommandAction; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.ScrollType; |
| import com.intellij.openapi.fileEditor.FileEditorManager; |
| import com.intellij.openapi.fileEditor.OpenFileDescriptor; |
| import com.intellij.openapi.progress.ProgressManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.ui.Messages; |
| import com.intellij.openapi.ui.popup.PopupChooserBuilder; |
| import com.intellij.openapi.util.Comparing; |
| import com.intellij.psi.*; |
| import com.intellij.psi.search.searches.ClassInheritorsSearch; |
| import com.intellij.psi.util.PsiUtilCore; |
| import com.intellij.psi.util.TypeConversionUtil; |
| import com.intellij.ui.components.JBList; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| |
| import javax.swing.*; |
| import java.util.*; |
| |
| /** |
| * @author yole |
| */ |
| public class CopyAbstractMethodImplementationHandler { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.intention.impl.CopyAbstractMethodImplementationHandler"); |
| |
| private final Project myProject; |
| private final Editor myEditor; |
| private final PsiMethod myMethod; |
| private PsiClass mySourceClass; |
| private final List<PsiClass> myTargetClasses = new ArrayList<PsiClass>(); |
| private final List<PsiEnumConstant> myTargetEnumConstants = new ArrayList<PsiEnumConstant>(); |
| private final List<PsiMethod> mySourceMethods = new ArrayList<PsiMethod>(); |
| |
| public CopyAbstractMethodImplementationHandler(final Project project, final Editor editor, final PsiMethod method) { |
| myProject = project; |
| myEditor = editor; |
| myMethod = method; |
| } |
| |
| public void invoke() { |
| ProgressManager.getInstance().runProcessWithProgressSynchronously(new Runnable() { |
| @Override |
| public void run() { |
| ApplicationManager.getApplication().runReadAction(new Runnable() { |
| @Override |
| public void run() { |
| searchExistingImplementations(); |
| } |
| }); |
| } |
| }, CodeInsightBundle.message("searching.for.implementations"), false, myProject); |
| if (mySourceMethods.isEmpty()) { |
| Messages.showErrorDialog(myProject, CodeInsightBundle.message("copy.abstract.method.no.existing.implementations.found"), |
| CodeInsightBundle.message("copy.abstract.method.title")); |
| return; |
| } |
| if (mySourceMethods.size() == 1) { |
| copyImplementation(mySourceMethods.get(0)); |
| } |
| else { |
| Collections.sort(mySourceMethods, new Comparator<PsiMethod>() { |
| @Override |
| public int compare(final PsiMethod o1, final PsiMethod o2) { |
| PsiClass c1 = o1.getContainingClass(); |
| PsiClass c2 = o2.getContainingClass(); |
| return Comparing.compare(c1.getName(), c2.getName()); |
| } |
| }); |
| final PsiMethod[] methodArray = mySourceMethods.toArray(new PsiMethod[mySourceMethods.size()]); |
| final JList list = new JBList(methodArray); |
| list.setCellRenderer(new MethodCellRenderer(true)); |
| final Runnable runnable = new Runnable() { |
| @Override |
| public void run() { |
| int index = list.getSelectedIndex(); |
| if (index < 0) return; |
| PsiMethod element = (PsiMethod)list.getSelectedValue(); |
| copyImplementation(element); |
| } |
| }; |
| new PopupChooserBuilder(list) |
| .setTitle(CodeInsightBundle.message("copy.abstract.method.popup.title")) |
| .setItemChoosenCallback(runnable) |
| .createPopup() |
| .showInBestPositionFor(myEditor); |
| } |
| } |
| |
| private void searchExistingImplementations() { |
| mySourceClass = myMethod.getContainingClass(); |
| if (!mySourceClass.isValid()) return; |
| for (PsiClass inheritor : ClassInheritorsSearch.search(mySourceClass, true)) { |
| if (!inheritor.isInterface()) { |
| PsiMethod method = ImplementAbstractMethodAction.findExistingImplementation(inheritor, myMethod); |
| if (method != null && !method.hasModifierProperty(PsiModifier.ABSTRACT)) { |
| mySourceMethods.add(method); |
| } |
| else if (method == null) { |
| myTargetClasses.add(inheritor); |
| } |
| } |
| } |
| for (Iterator<PsiClass> targetClassIterator = myTargetClasses.iterator(); targetClassIterator.hasNext();) { |
| PsiClass targetClass = targetClassIterator.next(); |
| if (containsAnySuperClass(targetClass)) { |
| targetClassIterator.remove(); |
| } |
| } |
| if (mySourceClass.isEnum()) { |
| for (PsiField field : mySourceClass.getFields()) { |
| if (field instanceof PsiEnumConstant){ |
| final PsiEnumConstant enumConstant = (PsiEnumConstant)field; |
| final PsiEnumConstantInitializer initializingClass = enumConstant.getInitializingClass(); |
| if (initializingClass == null) { |
| myTargetEnumConstants.add(enumConstant); |
| } |
| } |
| } |
| } |
| } |
| |
| private boolean containsAnySuperClass(final PsiClass targetClass) { |
| PsiClass superClass = targetClass.getSuperClass(); |
| while(superClass != null) { |
| if (myTargetClasses.contains(superClass)) return true; |
| superClass = superClass.getSuperClass(); |
| } |
| return false; |
| } |
| |
| private void copyImplementation(final PsiMethod sourceMethod) { |
| final List<PsiMethod> generatedMethods = new ArrayList<PsiMethod>(); |
| new WriteCommandAction(myProject, getTargetFiles()) { |
| @Override |
| protected void run(@NotNull final Result result) throws Throwable { |
| for (PsiEnumConstant enumConstant : myTargetEnumConstants) { |
| PsiClass initializingClass = enumConstant.getOrCreateInitializingClass(); |
| myTargetClasses.add(initializingClass); |
| } |
| for(PsiClass psiClass: myTargetClasses) { |
| final Collection<PsiMethod> methods = OverrideImplementUtil.overrideOrImplementMethod(psiClass, myMethod, true); |
| final Iterator<PsiMethod> iterator = methods.iterator(); |
| if (!iterator.hasNext()) continue; |
| PsiMethod overriddenMethod = iterator.next(); |
| final PsiCodeBlock body = overriddenMethod.getBody(); |
| final PsiCodeBlock sourceBody = sourceMethod.getBody(); |
| assert body != null && sourceBody != null; |
| ChangeContextUtil.encodeContextInfo(sourceBody, true); |
| final PsiElement newBody = body.replace(sourceBody.copy()); |
| ChangeContextUtil.decodeContextInfo(newBody, psiClass, null); |
| |
| PsiSubstitutor substitutor = TypeConversionUtil.getSuperClassSubstitutor(mySourceClass, psiClass, PsiSubstitutor.EMPTY); |
| PsiElement anchor = OverrideImplementUtil.getDefaultAnchorToOverrideOrImplement(psiClass, sourceMethod, substitutor); |
| try { |
| if (anchor != null) { |
| overriddenMethod = (PsiMethod) anchor.getParent().addBefore(overriddenMethod, anchor); |
| } |
| else { |
| overriddenMethod = (PsiMethod) psiClass.addBefore(overriddenMethod, psiClass.getRBrace()); |
| } |
| generatedMethods.add(overriddenMethod); |
| } |
| catch (IncorrectOperationException e) { |
| LOG.error(e); |
| } |
| } |
| } |
| }.execute(); |
| if (!generatedMethods.isEmpty()) { |
| PsiMethod target = generatedMethods.get(0); |
| PsiFile psiFile = target.getContainingFile(); |
| FileEditorManager fileEditorManager = FileEditorManager.getInstance(psiFile.getProject()); |
| Editor editor = fileEditorManager.openTextEditor(new OpenFileDescriptor(psiFile.getProject(), psiFile.getVirtualFile()), false); |
| if (editor != null) { |
| GenerateMembersUtil.positionCaret(editor, target, true); |
| editor.getScrollingModel().scrollToCaret(ScrollType.CENTER); |
| } |
| } |
| } |
| |
| private PsiFile[] getTargetFiles() { |
| Collection<PsiFile> fileList = new HashSet<PsiFile>(); |
| for(PsiClass psiClass: myTargetClasses) { |
| fileList.add(psiClass.getContainingFile()); |
| } |
| return PsiUtilCore.toPsiFileArray(fileList); |
| } |
| |
| } |