code: /*
   * Copyright (c) 2008-2019 Emmanuel Dupuy.
   * This project is distributed under the GPLv3 license.
   * This is a Copyleft license that gives the user the right to use,
   * copy and modify the code freely for non-commercial purposes.
   */
  
  package org.jd.gui.view.component;
  
  import org.jd.gui.api.API;
  import org.jd.gui.api.feature.ContentCopyable;
  import org.jd.gui.api.feature.ContentSavable;
  import org.jd.gui.api.feature.ContentSelectable;
  import org.jd.gui.util.exception.ExceptionUtil;
  import org.jd.gui.util.io.NewlineOutputStream;
  
  import java.awt.datatransfer.StringSelection;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.io.OutputStreamWriter;
  
  public class TextPage extends AbstractTextPage implements ContentCopyable, ContentSelectable, ContentSavable {
  
      // --- ContentCopyable --- //
      @Override
      public void copy() {
          if (textArea.getSelectionStart() == textArea.getSelectionEnd()) {
              getToolkit().getSystemClipboard().setContents(new StringSelection(""), null);
          } else {
              textArea.copyAsStyledText();
          }
      }
  
      // --- ContentSelectable --- //
      @Override
      public void selectAll() {
          textArea.selectAll();
      }
  
      // --- ContentSavable --- //
      @Override
      public String getFileName() { return "file.txt"; }
  
      @Override
      public void save(API api, OutputStream os) {
          try (OutputStreamWriter writer = new OutputStreamWriter(new NewlineOutputStream(os), "UTF-8")) {
              writer.write(textArea.getText());
          } catch (IOException e) {
              assert ExceptionUtil.printStackTrace(e);
          }
      }
  }
  