| /* |
| * 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; |
| |
| import com.intellij.codeInsight.hint.HintManager; |
| import com.intellij.codeInsight.hint.HintManagerImpl; |
| import com.intellij.codeInsight.hint.HintUtil; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.fileEditor.FileEditorManager; |
| import com.intellij.openapi.fileEditor.OpenFileDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.ReadonlyStatusHandler; |
| import com.intellij.openapi.vfs.VfsUtilCore; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.ui.LightweightHint; |
| import gnu.trove.THashSet; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Set; |
| |
| public class CodeInsightUtilBase extends CodeInsightUtilCore { |
| private CodeInsightUtilBase() { |
| } |
| |
| @Override |
| public boolean prepareFileForWrite(@Nullable final PsiFile psiFile) { |
| if (psiFile == null) return false; |
| final VirtualFile file = psiFile.getVirtualFile(); |
| final Project project = psiFile.getProject(); |
| |
| if (ReadonlyStatusHandler.ensureFilesWritable(project, file)) { |
| return true; |
| } |
| ApplicationManager.getApplication().invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| final Editor editor = FileEditorManager.getInstance(project).openTextEditor(new OpenFileDescriptor(project, file), true); |
| if (editor != null && editor.getComponent().isDisplayable()) { |
| HintManager.getInstance().showErrorHint(editor, CodeInsightBundle.message("error.hint.file.is.readonly", file.getPresentableUrl())); |
| } |
| } |
| }, project.getDisposed()); |
| |
| return false; |
| } |
| |
| @Override |
| public boolean preparePsiElementForWrite(@Nullable PsiElement element) { |
| PsiFile file = element == null ? null : element.getContainingFile(); |
| return prepareFileForWrite(file); |
| } |
| |
| @Override |
| public boolean preparePsiElementsForWrite(@NotNull PsiElement... elements) { |
| return preparePsiElementsForWrite(Arrays.asList(elements)); |
| } |
| |
| @Override |
| public boolean preparePsiElementsForWrite(@NotNull Collection<? extends PsiElement> elements) { |
| if (elements.isEmpty()) return true; |
| Set<VirtualFile> files = new THashSet<VirtualFile>(); |
| Project project = null; |
| for (PsiElement element : elements) { |
| if (element == null) continue; |
| PsiFile file = element.getContainingFile(); |
| if (file == null || !file.isPhysical()) continue; |
| project = file.getProject(); |
| VirtualFile virtualFile = file.getVirtualFile(); |
| if (virtualFile == null) continue; |
| files.add(virtualFile); |
| } |
| if (!files.isEmpty()) { |
| VirtualFile[] virtualFiles = VfsUtilCore.toVirtualFileArray(files); |
| ReadonlyStatusHandler.OperationStatus status = ReadonlyStatusHandler.getInstance(project).ensureFilesWritable(virtualFiles); |
| return !status.hasReadonlyFiles(); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean prepareVirtualFilesForWrite(@NotNull Project project, @NotNull Collection<VirtualFile> files) { |
| ReadonlyStatusHandler.OperationStatus status = ReadonlyStatusHandler.getInstance(project).ensureFilesWritable(files); |
| return !status.hasReadonlyFiles(); |
| } |
| |
| // returns true on success |
| public static boolean prepareEditorForWrite(@NotNull Editor editor) { |
| if (!editor.isViewer()) return true; |
| showReadOnlyViewWarning(editor); |
| return false; |
| } |
| |
| public static void showReadOnlyViewWarning(Editor editor) { |
| if (ApplicationManager.getApplication().isHeadlessEnvironment()) return; |
| |
| JComponent component = HintUtil.createInformationLabel("This view is read-only"); |
| final LightweightHint hint = new LightweightHint(component); |
| HintManagerImpl.getInstanceImpl().showEditorHint(hint, editor, HintManager.UNDER, |
| HintManager.HIDE_BY_ANY_KEY | HintManager.HIDE_BY_TEXT_CHANGE | HintManager.HIDE_BY_SCROLLING, 0, false); |
| } |
| } |