| /* |
| * 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.ide.actions; |
| |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.ide.IdeBundle; |
| import com.intellij.ide.PasteProvider; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.command.CommandProcessor; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.EditorModificationUtil; |
| import com.intellij.openapi.editor.actions.PasteAction; |
| import com.intellij.openapi.extensions.Extensions; |
| import com.intellij.openapi.ide.CopyPasteManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiDocumentManager; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.util.Producer; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.awt.datatransfer.Transferable; |
| |
| public class PasteReferenceProvider implements PasteProvider { |
| @Override |
| public void performPaste(@NotNull DataContext dataContext) { |
| final Project project = CommonDataKeys.PROJECT.getData(dataContext); |
| final Editor editor = CommonDataKeys.EDITOR.getData(dataContext); |
| if (project == null || editor == null) return; |
| |
| final String fqn = getCopiedFqn(dataContext); |
| |
| QualifiedNameProvider theProvider = null; |
| PsiElement element = null; |
| for(QualifiedNameProvider provider: Extensions.getExtensions(QualifiedNameProvider.EP_NAME)) { |
| element = provider.qualifiedNameToElement(fqn, project); |
| if (element != null) { |
| theProvider = provider; |
| break; |
| } |
| } |
| |
| if (theProvider != null) { |
| insert(fqn, element, editor, theProvider); |
| } |
| } |
| |
| @Override |
| public boolean isPastePossible(@NotNull DataContext dataContext) { |
| final Project project = CommonDataKeys.PROJECT.getData(dataContext); |
| final Editor editor = CommonDataKeys.EDITOR.getData(dataContext); |
| return project != null && editor != null && getCopiedFqn(dataContext) != null; |
| } |
| |
| @Override |
| public boolean isPasteEnabled(@NotNull DataContext dataContext) { |
| final Project project = CommonDataKeys.PROJECT.getData(dataContext); |
| String fqn = getCopiedFqn(dataContext); |
| if (project == null || fqn == null) { |
| return false; |
| } |
| for(QualifiedNameProvider provider: Extensions.getExtensions(QualifiedNameProvider.EP_NAME)) { |
| if (provider.qualifiedNameToElement(fqn, project) != null) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private static void insert(final String fqn, final PsiElement element, final Editor editor, final QualifiedNameProvider provider) { |
| final Project project = editor.getProject(); |
| if (project == null) return; |
| |
| final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project); |
| documentManager.commitDocument(editor.getDocument()); |
| |
| final PsiFile file = documentManager.getPsiFile(editor.getDocument()); |
| if (!FileModificationService.getInstance().prepareFileForWrite(file)) return; |
| |
| CommandProcessor.getInstance().executeCommand(project, new Runnable() { |
| @Override |
| public void run() { |
| ApplicationManager.getApplication().runWriteAction(new Runnable() { |
| @Override |
| public void run() { |
| Document document = editor.getDocument(); |
| documentManager.doPostponedOperationsAndUnblockDocument(document); |
| documentManager.commitDocument(document); |
| EditorModificationUtil.deleteSelectedText(editor); |
| provider.insertQualifiedName(fqn, element, editor, project); |
| } |
| }); |
| } |
| }, IdeBundle.message("command.pasting.reference"), null); |
| } |
| |
| @Nullable |
| private static String getCopiedFqn(final DataContext context) { |
| Producer<Transferable> producer = PasteAction.TRANSFERABLE_PROVIDER.getData(context); |
| |
| if (producer != null) { |
| Transferable transferable = producer.produce(); |
| if (transferable != null) { |
| try { |
| return (String)transferable.getTransferData(CopyReferenceAction.ourFlavor); |
| } |
| catch (Exception ignored) { } |
| } |
| return null; |
| } |
| |
| return CopyPasteManager.getInstance().getContents(CopyReferenceAction.ourFlavor); |
| } |
| } |