| /* |
| * 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.codeInsight.editorActions; |
| |
| import com.intellij.lang.html.HTMLLanguage; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.CaretStateTransferableData; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.RawText; |
| import com.intellij.openapi.ide.CopyPasteManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.PsiFile; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.text.BadLocationException; |
| import javax.swing.text.DefaultStyledDocument; |
| import javax.swing.text.html.HTMLEditorKit; |
| import javax.swing.text.rtf.RTFEditorKit; |
| import java.awt.datatransfer.DataFlavor; |
| import java.awt.datatransfer.Transferable; |
| import java.awt.datatransfer.UnsupportedFlavorException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.StringWriter; |
| |
| /** |
| * @author Dennis.Ushakov |
| */ |
| public class HtmlCopyPastePreProcessor implements CopyPastePreProcessor { |
| private static final Logger LOG = Logger.getInstance(HtmlCopyPastePreProcessor.class); |
| |
| private static final DataFlavor ourHtmlDataFlavor = buildDataFlavor("text/html;class=java.lang.String"); |
| private static final DataFlavor ourRtfDataFlavor = buildDataFlavor("text/rtf;class=java.io.InputStream"); |
| |
| private static DataFlavor buildDataFlavor(final String flavor) { |
| try { |
| return new DataFlavor(flavor); |
| } |
| catch (ClassNotFoundException e) { |
| return null; |
| } |
| } |
| |
| @Nullable |
| @Override |
| public String preprocessOnCopy(PsiFile file, int[] startOffsets, int[] endOffsets, String text) { |
| return null; |
| } |
| |
| @NotNull |
| @Override |
| public String preprocessOnPaste(Project project, PsiFile file, Editor editor, String text, RawText rawText) { |
| if (file.getLanguage() != HTMLLanguage.INSTANCE) return text; |
| |
| CopyPasteManager manager = CopyPasteManager.getInstance(); |
| if (manager.areDataFlavorsAvailable(ourHtmlDataFlavor, ourRtfDataFlavor)) { |
| Transferable content = manager.getContents(); |
| if (content != null && !content.isDataFlavorSupported(CaretStateTransferableData.FLAVOR)) { |
| try { |
| final String data = content.isDataFlavorSupported(ourHtmlDataFlavor) ? (String)content.getTransferData(ourHtmlDataFlavor) : |
| convertFromRtfStream((InputStream)content.getTransferData(ourRtfDataFlavor)); |
| if (!StringUtil.isEmpty(data)) return data; |
| } |
| catch (UnsupportedFlavorException e) { |
| LOG.error(e); |
| } |
| catch (IOException e) { |
| LOG.error(e); |
| } |
| } |
| } |
| return text; |
| } |
| |
| private static String convertFromRtfStream(InputStream stream) { |
| final DefaultStyledDocument document = new DefaultStyledDocument(); |
| try { |
| new RTFEditorKit().read(stream, document, 0); |
| final StringWriter writer = new StringWriter(); |
| new HTMLEditorKit().write(writer, document, 0, document.getLength()); |
| return writer.toString(); |
| } |
| catch (IOException e) { |
| LOG.error(e); |
| } |
| catch (BadLocationException e) { |
| LOG.error(e); |
| } |
| return null; |
| } |
| } |