| /* |
| * Copyright 2000-2013 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.ide.util; |
| |
| import com.intellij.CommonBundle; |
| import com.intellij.history.LocalHistory; |
| import com.intellij.history.LocalHistoryAction; |
| import com.intellij.ide.DataManager; |
| import com.intellij.ide.DeleteProvider; |
| import com.intellij.ide.IdeBundle; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.LangDataKeys; |
| import com.intellij.openapi.actionSystem.PlatformDataKeys; |
| import com.intellij.openapi.application.ApplicationBundle; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.application.ApplicationNamesInfo; |
| import com.intellij.openapi.command.CommandProcessor; |
| import com.intellij.openapi.project.DumbService; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.ui.DialogWrapper; |
| import com.intellij.openapi.ui.Messages; |
| import com.intellij.openapi.ui.ex.MessagesEx; |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.openapi.vfs.VFileProperty; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.WritingAccessProvider; |
| import com.intellij.psi.PsiDirectory; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiFileSystemItem; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.util.PsiUtilBase; |
| import com.intellij.psi.util.PsiUtilCore; |
| import com.intellij.refactoring.RefactoringBundle; |
| import com.intellij.refactoring.safeDelete.SafeDeleteProcessor; |
| import com.intellij.refactoring.util.CommonRefactoringUtil; |
| import com.intellij.refactoring.util.RefactoringUIUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.io.ReadOnlyAttributeUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| public class DeleteHandler { |
| private DeleteHandler() { |
| } |
| |
| public static class DefaultDeleteProvider implements DeleteProvider { |
| @Override |
| public boolean canDeleteElement(@NotNull DataContext dataContext) { |
| if (CommonDataKeys.PROJECT.getData(dataContext) == null) { |
| return false; |
| } |
| final PsiElement[] elements = getPsiElements(dataContext); |
| return elements != null && shouldEnableDeleteAction(elements); |
| } |
| |
| @Nullable |
| private static PsiElement[] getPsiElements(DataContext dataContext) { |
| PsiElement[] elements = LangDataKeys.PSI_ELEMENT_ARRAY.getData(dataContext); |
| if (elements == null) { |
| final Object data = CommonDataKeys.PSI_ELEMENT.getData(dataContext); |
| if (data != null) { |
| elements = new PsiElement[]{(PsiElement)data}; |
| } |
| else { |
| final Object data1 = CommonDataKeys.PSI_FILE.getData(dataContext); |
| if (data1 != null) { |
| elements = new PsiElement[]{(PsiFile)data1}; |
| } |
| } |
| } |
| return elements; |
| } |
| |
| @Override |
| public void deleteElement(@NotNull DataContext dataContext) { |
| PsiElement[] elements = getPsiElements(dataContext); |
| if (elements == null) return; |
| Project project = CommonDataKeys.PROJECT.getData(dataContext); |
| if (project == null) return; |
| LocalHistoryAction a = LocalHistory.getInstance().startAction(IdeBundle.message("progress.deleting")); |
| try { |
| deletePsiElement(elements, project); |
| } |
| finally { |
| a.finish(); |
| } |
| } |
| } |
| |
| public static void deletePsiElement(final PsiElement[] elementsToDelete, final Project project) { |
| deletePsiElement(elementsToDelete, project, true); |
| } |
| |
| public static void deletePsiElement(final PsiElement[] elementsToDelete, final Project project, boolean needConfirmation) { |
| if (elementsToDelete == null || elementsToDelete.length == 0) return; |
| |
| final PsiElement[] elements = PsiTreeUtil.filterAncestors(elementsToDelete); |
| |
| boolean safeDeleteApplicable = true; |
| for (int i = 0; i < elements.length && safeDeleteApplicable; i++) { |
| PsiElement element = elements[i]; |
| safeDeleteApplicable = SafeDeleteProcessor.validElement(element); |
| } |
| |
| final boolean dumb = DumbService.getInstance(project).isDumb(); |
| if (safeDeleteApplicable && !dumb) { |
| final Ref<Boolean> exit = Ref.create(false); |
| DeleteDialog dialog = new DeleteDialog(project, elements, new DeleteDialog.Callback() { |
| @Override |
| public void run(final DeleteDialog dialog) { |
| if (!CommonRefactoringUtil.checkReadOnlyStatusRecursively(project, Arrays.asList(elements), true)) return; |
| SafeDeleteProcessor.createInstance(project, new Runnable() { |
| @Override |
| public void run() { |
| exit.set(true); |
| dialog.close(DialogWrapper.OK_EXIT_CODE); |
| } |
| }, elements, dialog.isSearchInComments(), dialog.isSearchInNonJava(), true).run(); |
| } |
| }); |
| if (needConfirmation) { |
| dialog.show(); |
| if (!dialog.isOK() || exit.get()) return; |
| } |
| } |
| else { |
| @SuppressWarnings({"UnresolvedPropertyKey"}) |
| String warningMessage = DeleteUtil.generateWarningMessage(IdeBundle.message("prompt.delete.elements"), elements); |
| |
| boolean anyDirectories = false; |
| String directoryName = null; |
| for (PsiElement psiElement : elementsToDelete) { |
| if (psiElement instanceof PsiDirectory && !PsiUtilBase.isSymLink((PsiDirectory)psiElement)) { |
| anyDirectories = true; |
| directoryName = ((PsiDirectory)psiElement).getName(); |
| break; |
| } |
| } |
| if (anyDirectories) { |
| if (elements.length == 1) { |
| warningMessage += IdeBundle.message("warning.delete.all.files.and.subdirectories", directoryName); |
| } |
| else { |
| warningMessage += IdeBundle.message("warning.delete.all.files.and.subdirectories.in.the.selected.directory"); |
| } |
| } |
| |
| if (safeDeleteApplicable && dumb) { |
| warningMessage += "\n\nWarning:\n Safe delete is not available while " + |
| ApplicationNamesInfo.getInstance().getFullProductName() + |
| " updates indices,\n no usages will be checked."; |
| } |
| |
| if (needConfirmation) { |
| int result = Messages.showOkCancelDialog(project, warningMessage, IdeBundle.message("title.delete"), |
| ApplicationBundle.message("button.delete"), CommonBundle.getCancelButtonText(), |
| Messages.getQuestionIcon()); |
| if (result != 0) return; |
| } |
| } |
| |
| CommandProcessor.getInstance().executeCommand(project, new Runnable() { |
| @Override |
| public void run() { |
| if (!CommonRefactoringUtil.checkReadOnlyStatusRecursively(project, Arrays.asList(elements), false)) { |
| return; |
| } |
| |
| // deleted from project view or something like that. |
| if (CommonDataKeys.EDITOR.getData(DataManager.getInstance().getDataContext()) == null) { |
| CommandProcessor.getInstance().markCurrentCommandAsGlobal(project); |
| } |
| |
| for (final PsiElement elementToDelete : elements) { |
| if (!elementToDelete.isValid()) continue; //was already deleted |
| if (elementToDelete instanceof PsiDirectory) { |
| VirtualFile virtualFile = ((PsiDirectory)elementToDelete).getVirtualFile(); |
| if (virtualFile.isInLocalFileSystem() && !virtualFile.is(VFileProperty.SYMLINK)) { |
| ArrayList<VirtualFile> readOnlyFiles = new ArrayList<VirtualFile>(); |
| CommonRefactoringUtil.collectReadOnlyFiles(virtualFile, readOnlyFiles); |
| |
| if (!readOnlyFiles.isEmpty()) { |
| String message = IdeBundle.message("prompt.directory.contains.read.only.files", virtualFile.getPresentableUrl()); |
| int _result = Messages.showYesNoDialog(project, message, IdeBundle.message("title.delete"), Messages.getQuestionIcon()); |
| if (_result != 0) continue; |
| |
| boolean success = true; |
| for (VirtualFile file : readOnlyFiles) { |
| success = clearReadOnlyFlag(file, project); |
| if (!success) break; |
| } |
| if (!success) continue; |
| } |
| } |
| } |
| else if (!elementToDelete.isWritable() && |
| !(elementToDelete instanceof PsiFileSystemItem && PsiUtilBase.isSymLink((PsiFileSystemItem)elementToDelete))) { |
| final PsiFile file = elementToDelete.getContainingFile(); |
| if (file != null) { |
| final VirtualFile virtualFile = file.getVirtualFile(); |
| if (virtualFile.isInLocalFileSystem()) { |
| int _result = MessagesEx.fileIsReadOnly(project, virtualFile) |
| .setTitle(IdeBundle.message("title.delete")) |
| .appendMessage(IdeBundle.message("prompt.delete.it.anyway")) |
| .askYesNo(); |
| if (_result != 0) continue; |
| |
| boolean success = clearReadOnlyFlag(virtualFile, project); |
| if (!success) continue; |
| } |
| } |
| } |
| |
| try { |
| elementToDelete.checkDelete(); |
| } |
| catch (IncorrectOperationException ex) { |
| Messages.showMessageDialog(project, ex.getMessage(), CommonBundle.getErrorTitle(), Messages.getErrorIcon()); |
| continue; |
| } |
| |
| ApplicationManager.getApplication().runWriteAction(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| elementToDelete.delete(); |
| } |
| catch (final IncorrectOperationException ex) { |
| ApplicationManager.getApplication().invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| Messages.showMessageDialog(project, ex.getMessage(), CommonBundle.getErrorTitle(), Messages.getErrorIcon()); |
| } |
| }); |
| } |
| } |
| }); |
| } |
| } |
| }, RefactoringBundle.message("safe.delete.command", RefactoringUIUtil.calculatePsiElementDescriptionList(elements)), null); |
| } |
| |
| private static boolean clearReadOnlyFlag(final VirtualFile virtualFile, final Project project) { |
| final boolean[] success = new boolean[1]; |
| CommandProcessor.getInstance().executeCommand(project, new Runnable() { |
| @Override |
| public void run() { |
| Runnable action = new Runnable() { |
| @Override |
| public void run() { |
| try { |
| ReadOnlyAttributeUtil.setReadOnlyAttribute(virtualFile, false); |
| success[0] = true; |
| } |
| catch (IOException e1) { |
| Messages.showMessageDialog(project, e1.getMessage(), CommonBundle.getErrorTitle(), Messages.getErrorIcon()); |
| } |
| } |
| }; |
| ApplicationManager.getApplication().runWriteAction(action); |
| } |
| }, "", null); |
| return success[0]; |
| } |
| |
| public static boolean shouldEnableDeleteAction(PsiElement[] elements) { |
| if (elements == null || elements.length == 0) return false; |
| for (PsiElement element : elements) { |
| VirtualFile virtualFile = PsiUtilCore.getVirtualFile(element); |
| if (virtualFile == null) { |
| return false; |
| } |
| if (!WritingAccessProvider.isPotentiallyWritable(virtualFile, element.getProject())) { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |
