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/*
* 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.daemon.QuickFixActionRegistrar;
import com.intellij.codeInsight.daemon.impl.actions.AddImportAction;
import com.intellij.codeInsight.hint.QuestionAction;
import com.intellij.codeInsight.intention.IntentionAction;
import com.intellij.ide.DataManager;
import com.intellij.ide.util.PackageUtil;
import com.intellij.ide.util.PsiElementListCellRenderer;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.LangDataKeys;
import com.intellij.openapi.actionSystem.impl.SimpleDataContext;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.ModuleRootManager;
import com.intellij.openapi.roots.ProjectFileIndex;
import com.intellij.openapi.roots.ProjectRootManager;
import com.intellij.openapi.ui.popup.JBPopupFactory;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.*;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.PsiShortNamesCache;
import com.intellij.refactoring.RefactoringActionHandler;
import com.intellij.refactoring.RefactoringActionHandlerFactory;
import com.intellij.ui.components.JBList;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jps.model.java.JavaModuleSourceRootTypes;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
/**
* @author cdr
*/
public class MoveClassToModuleFix implements IntentionAction {
private final Map<PsiClass, Module> myModules = new LinkedHashMap<PsiClass, Module>();
private final String myReferenceName;
private final Module myCurrentModule;
private final PsiDirectory mySourceRoot;
private static final Logger LOG = Logger.getInstance("#" + MoveClassToModuleFix.class.getName());
public MoveClassToModuleFix(String referenceName, Module currentModule, PsiDirectory root, PsiElement psiElement) {
myReferenceName = referenceName;
myCurrentModule = currentModule;
mySourceRoot = root;
final Project project = psiElement.getProject();
final PsiClass[] classes = PsiShortNamesCache.getInstance(project).getClassesByName(referenceName, GlobalSearchScope.allScope(project));
final JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(project).getFileIndex();
for (final PsiClass aClass : classes) {
if (!facade.getResolveHelper().isAccessible(aClass, psiElement, aClass)) continue;
final PsiFile psiFile = aClass.getContainingFile();
if (!(psiFile instanceof PsiJavaFile)) continue;
if (aClass.getQualifiedName() == null) continue;
VirtualFile virtualFile = psiFile.getVirtualFile();
if (virtualFile == null) continue;
final Module classModule = fileIndex.getModuleForFile(virtualFile);
if (classModule != null && classModule != currentModule && !ModuleRootManager.getInstance(currentModule).isDependsOn(classModule)) {
myModules.put(aClass, classModule);
}
}
}
@Override
@NotNull
public String getText() {
if (myModules.size() == 1) {
final PsiClass aClass = myModules.keySet().iterator().next();
return "Move '" + aClass.getQualifiedName() + "' from module '" + myModules.get(aClass).getName() +
"' to '" + myCurrentModule.getName() + "'";
}
return "Move '" + myReferenceName + "' in '" + myCurrentModule.getName() + "'...";
}
@Override
@NotNull
public String getFamilyName() {
return "move it";
}
@Override
public boolean isAvailable(@NotNull final Project project, final Editor editor, final PsiFile file) {
return !myModules.isEmpty();
}
@Override
public void invoke(@NotNull final Project project, final Editor editor, final PsiFile file) throws IncorrectOperationException {
if (myModules.size() == 1) {
moveClass(project, editor, file, myModules.keySet().iterator().next());
}
else {
LOG.assertTrue(editor != null);
final JBList list = new JBList(myModules.keySet());
list.setCellRenderer(new PsiElementListCellRenderer<PsiClass>() {
@Override
public String getElementText(PsiClass psiClass) {
return psiClass.getQualifiedName();
}
@Nullable
@Override
protected String getContainerText(PsiClass element, String name) {
return null;
}
@Override
protected int getIconFlags() {
return 0;
}
});
JBPopupFactory.getInstance().createListPopupBuilder(list)
.setTitle("Choose Class to Move")
.setMovable(false)
.setResizable(false)
.setRequestFocus(true)
.setItemChoosenCallback(new Runnable() {
@Override
public void run() {
final Object value = list.getSelectedValue();
if (value instanceof PsiClass) {
moveClass(project, editor, file, (PsiClass)value);
}
}
}).createPopup().showInBestPositionFor(editor);
}
}
private void moveClass(Project project, Editor editor, PsiFile file, PsiClass aClass) {
RefactoringActionHandler moveHandler = RefactoringActionHandlerFactory.getInstance().createMoveHandler();
DataManager dataManager = DataManager.getInstance();
DataContext dataContext = dataManager.getDataContext();
final String fqName = aClass.getQualifiedName();
LOG.assertTrue(fqName != null);
PsiDirectory directory = PackageUtil
.findOrCreateDirectoryForPackage(myCurrentModule, StringUtil.getPackageName(fqName), mySourceRoot, true);
DataContext context = SimpleDataContext.getSimpleContext(LangDataKeys.TARGET_PSI_ELEMENT.getName(), directory, dataContext);
moveHandler.invoke(project, new PsiElement[]{aClass}, context);
PsiReference reference = file.findReferenceAt(editor.getCaretModel().getOffset());
PsiClass newClass = JavaPsiFacade.getInstance(project).findClass(fqName, GlobalSearchScope.moduleScope(myCurrentModule));
if (reference != null && newClass != null) {
final QuestionAction action = new AddImportAction(project, reference, editor, newClass);
action.execute();
}
}
@Override
public boolean startInWriteAction() {
return false;
}
public static void registerFixes(QuickFixActionRegistrar registrar, final PsiJavaCodeReferenceElement reference) {
final PsiElement psiElement = reference.getElement();
@NonNls final String referenceName = reference.getRangeInElement().substring(psiElement.getText());
Project project = psiElement.getProject();
final PsiFile containingFile = psiElement.getContainingFile();
if (containingFile == null) return;
PsiDirectory dir = containingFile.getContainingDirectory();
if (dir == null) return;
VirtualFile classVFile = containingFile.getVirtualFile();
if (classVFile == null) return;
final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(project).getFileIndex();
final Module currentModule = fileIndex.getModuleForFile(classVFile);
if (currentModule == null) return;
List<VirtualFile> sourceRoots = ModuleRootManager.getInstance(currentModule).getSourceRoots(JavaModuleSourceRootTypes.SOURCES);
if (sourceRoots.isEmpty()) return;
final PsiDirectory sourceDirectory = PsiManager.getInstance(project).findDirectory(sourceRoots.get(0));
if (sourceDirectory == null) return;
VirtualFile vsourceRoot = fileIndex.getSourceRootForFile(classVFile);
if (vsourceRoot == null) return;
final PsiDirectory sourceRoot = PsiManager.getInstance(project).findDirectory(vsourceRoot);
if (sourceRoot == null) return;
registrar.register(new MoveClassToModuleFix(referenceName, currentModule, sourceRoot, psiElement));
}
}
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