/*
* 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.refactoring.safeDelete;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.LangDataKeys;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.ScrollType;
import com.intellij.openapi.extensions.Extensions;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.DialogWrapper;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.psi.util.PsiUtilCore;
import com.intellij.refactoring.RefactoringActionHandler;
import com.intellij.refactoring.RefactoringBundle;
import com.intellij.refactoring.RefactoringSettings;
import com.intellij.refactoring.util.CommonRefactoringUtil;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.util.containers.HashSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.Set;
/**
* @author dsl
*/
public class SafeDeleteHandler implements RefactoringActionHandler {
public static final String REFACTORING_NAME = RefactoringBundle.message("safe.delete.title");
@Override
public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) {
PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataContext);
editor.getScrollingModel().scrollToCaret(ScrollType.MAKE_VISIBLE);
if (element == null || !SafeDeleteProcessor.validElement(element)) {
String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("is.not.supported.in.the.current.context", REFACTORING_NAME));
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, "refactoring.safeDelete");
return;
}
invoke(project, new PsiElement[]{element}, dataContext);
}
@Override
public void invoke(@NotNull final Project project, @NotNull PsiElement[] elements, DataContext dataContext) {
invoke(project, elements, LangDataKeys.MODULE.getData(dataContext), true, null, null);
}
public static void invoke(final Project project, PsiElement[] elements, boolean checkDelegates) {
invoke(project, elements, checkDelegates, null);
}
public static void invoke(final Project project, PsiElement[] elements, boolean checkDelegates, @Nullable final Runnable successRunnable) {
invoke(project, elements, null, checkDelegates, successRunnable, null);
}
public static void invoke(final Project project, PsiElement[] elements, @Nullable Module module, boolean checkDelegates,
@Nullable final Runnable successRunnable) {
invoke(project, elements, module, checkDelegates, successRunnable, null);
}
public static void invoke(final Project project, PsiElement[] elements, @Nullable Module module, boolean checkDelegates,
@Nullable final Runnable successRunnable, @Nullable final Runnable afterRefactoring) {
for (PsiElement element : elements) {
if (!SafeDeleteProcessor.validElement(element)) {
return;
}
}
final PsiElement[] temptoDelete = PsiTreeUtil.filterAncestors(elements);
Set<PsiElement> elementsSet = new HashSet<>(Arrays.asList(temptoDelete));
Set<PsiElement> fullElementsSet = new LinkedHashSet<>();
if (checkDelegates) {
for (PsiElement element : temptoDelete) {
boolean found = false;
for(SafeDeleteProcessorDelegate delegate: Extensions.getExtensions(SafeDeleteProcessorDelegate.EP_NAME)) {
if (delegate.handlesElement(element)) {
found = true;
Collection<? extends PsiElement> addElements = delegate instanceof SafeDeleteProcessorDelegateBase
? ((SafeDeleteProcessorDelegateBase)delegate).getElementsToSearch(element, module, elementsSet)
: delegate.getElementsToSearch(element, elementsSet);
if (addElements == null) return;
fullElementsSet.addAll(addElements);
break;
}
}
if (!found) {
fullElementsSet.add(element);
}
}
} else {
ContainerUtil.addAll(fullElementsSet, temptoDelete);
}
if (!CommonRefactoringUtil.checkReadOnlyStatusRecursively(project, fullElementsSet, true)) return;
final PsiElement[] elementsToDelete = PsiUtilCore.toPsiElementArray(fullElementsSet);
if (ApplicationManager.getApplication().isUnitTestMode()) {
RefactoringSettings settings = RefactoringSettings.getInstance();
final SafeDeleteProcessor processor =
SafeDeleteProcessor.createInstance(project, null, elementsToDelete, settings.SAFE_DELETE_SEARCH_IN_COMMENTS,
settings.SAFE_DELETE_SEARCH_IN_NON_JAVA, true);
if (afterRefactoring != null) processor.setAfterRefactoringCallback(afterRefactoring);
processor.run();
if (successRunnable != null) successRunnable.run();
}
else {
final SafeDeleteDialog.Callback callback = new SafeDeleteDialog.Callback() {
@Override
public void run(final SafeDeleteDialog dialog) {
final SafeDeleteProcessor processor = SafeDeleteProcessor.createInstance(project, () -> {
if (successRunnable != null) {
successRunnable.run();
}
dialog.close(DialogWrapper.CANCEL_EXIT_CODE);
}, elementsToDelete, dialog.isSearchInComments(), dialog.isSearchForTextOccurences(), true);
if (afterRefactoring != null) processor.setAfterRefactoringCallback(afterRefactoring);
processor.run();
}
};
SafeDeleteDialog dialog = new SafeDeleteDialog(project, elementsToDelete, callback);
dialog.show();
}
}
}