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Rhino JavaScript Java Library Source Code
Rhino JavaScript Java Library is an open-source implementation of JavaScript written entirely in Java.
Rhino JavaScript Java Library Source Code files are provided in binary package (rhino-1.7.14.zip).
You can also browse the source code below:
✍: FYIcenter.com
⏎ org/mozilla/javascript/tools/shell/ConsoleTextArea.java
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ package org.mozilla.javascript.tools.shell; import java.awt.Font; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.io.IOException; import java.io.InputStream; import java.io.PipedInputStream; import java.io.PipedOutputStream; import java.io.PrintStream; import java.io.PrintWriter; import javax.swing.JTextArea; import javax.swing.SwingUtilities; import javax.swing.event.DocumentEvent; import javax.swing.event.DocumentListener; import javax.swing.text.Document; import javax.swing.text.Segment; class ConsoleWrite implements Runnable { private ConsoleTextArea textArea; private String str; public ConsoleWrite(ConsoleTextArea textArea, String str) { this.textArea = textArea; this.str = str; } public void run() { textArea.write(str); } } class ConsoleWriter extends java.io.OutputStream { private ConsoleTextArea textArea; private StringBuffer buffer; public ConsoleWriter(ConsoleTextArea textArea) { this.textArea = textArea; buffer = new StringBuffer(); } @Override public synchronized void write(int ch) { buffer.append((char)ch); if(ch == '\n') { flushBuffer(); } } public synchronized void write (char[] data, int off, int len) { for(int i = off; i < len; i++) { buffer.append(data[i]); if(data[i] == '\n') { flushBuffer(); } } } @Override public synchronized void flush() { if (buffer.length() > 0) { flushBuffer(); } } @Override public void close () { flush(); } private void flushBuffer() { String str = buffer.toString(); buffer.setLength(0); SwingUtilities.invokeLater(new ConsoleWrite(textArea, str)); } } public class ConsoleTextArea extends JTextArea implements KeyListener, DocumentListener { static final long serialVersionUID = 8557083244830872961L; private ConsoleWriter console1; private ConsoleWriter console2; private PrintStream out; private PrintStream err; private PrintWriter inPipe; private PipedInputStream in; private java.util.List<String> history; private int historyIndex = -1; private int outputMark = 0; @Override public void select(int start, int end) { requestFocus(); super.select(start, end); } public ConsoleTextArea(String[] argv) { super(); history = new java.util.ArrayList<String>(); console1 = new ConsoleWriter(this); console2 = new ConsoleWriter(this); out = new PrintStream(console1, true); err = new PrintStream(console2, true); PipedOutputStream outPipe = new PipedOutputStream(); inPipe = new PrintWriter(outPipe); in = new PipedInputStream(); try { outPipe.connect(in); } catch(IOException exc) { exc.printStackTrace(); } getDocument().addDocumentListener(this); addKeyListener(this); setLineWrap(true); setFont(new Font("Monospaced", 0, 12)); } synchronized void returnPressed() { Document doc = getDocument(); int len = doc.getLength(); Segment segment = new Segment(); try { doc.getText(outputMark, len - outputMark, segment); } catch(javax.swing.text.BadLocationException ignored) { ignored.printStackTrace(); } if(segment.count > 0) { history.add(segment.toString()); } historyIndex = history.size(); inPipe.write(segment.array, segment.offset, segment.count); append("\n"); outputMark = doc.getLength(); inPipe.write("\n"); inPipe.flush(); console1.flush(); } public void eval(String str) { inPipe.write(str); inPipe.write("\n"); inPipe.flush(); console1.flush(); } public void keyPressed(KeyEvent e) { int code = e.getKeyCode(); if(code == KeyEvent.VK_BACK_SPACE || code == KeyEvent.VK_LEFT) { if(outputMark == getCaretPosition()) { e.consume(); } } else if(code == KeyEvent.VK_HOME) { int caretPos = getCaretPosition(); if(caretPos == outputMark) { e.consume(); } else if(caretPos > outputMark) { if(!e.isControlDown()) { if(e.isShiftDown()) { moveCaretPosition(outputMark); } else { setCaretPosition(outputMark); } e.consume(); } } } else if(code == KeyEvent.VK_ENTER) { returnPressed(); e.consume(); } else if(code == KeyEvent.VK_UP) { historyIndex--; if(historyIndex >= 0) { if(historyIndex >= history.size()) { historyIndex = history.size() -1; } if(historyIndex >= 0) { String str = history.get(historyIndex); int len = getDocument().getLength(); replaceRange(str, outputMark, len); int caretPos = outputMark + str.length(); select(caretPos, caretPos); } else { historyIndex++; } } else { historyIndex++; } e.consume(); } else if(code == KeyEvent.VK_DOWN) { int caretPos = outputMark; if(history.size() > 0) { historyIndex++; if(historyIndex < 0) {historyIndex = 0;} int len = getDocument().getLength(); if (historyIndex < history.size()) { String str = history.get(historyIndex); replaceRange(str, outputMark, len); caretPos = outputMark + str.length(); } else { historyIndex = history.size(); replaceRange("", outputMark, len); } } select(caretPos, caretPos); e.consume(); } } public void keyTyped(KeyEvent e) { int keyChar = e.getKeyChar(); if(keyChar == 0x8 /* KeyEvent.VK_BACK_SPACE */) { if(outputMark == getCaretPosition()) { e.consume(); } } else if(getCaretPosition() < outputMark) { setCaretPosition(outputMark); } } public synchronized void keyReleased(KeyEvent e) { } public synchronized void write(String str) { insert(str, outputMark); int len = str.length(); outputMark += len; select(outputMark, outputMark); } public synchronized void insertUpdate(DocumentEvent e) { int len = e.getLength(); int off = e.getOffset(); if(outputMark > off) { outputMark += len; } } public synchronized void removeUpdate(DocumentEvent e) { int len = e.getLength(); int off = e.getOffset(); if(outputMark > off) { if(outputMark >= off + len) { outputMark -= len; } else { outputMark = off; } } } public synchronized void postUpdateUI() { // this attempts to cleanup the damage done by updateComponentTreeUI requestFocus(); setCaret(getCaret()); select(outputMark, outputMark); } public synchronized void changedUpdate(DocumentEvent e) { } public InputStream getIn() { return in; } public PrintStream getOut() { return out; } public PrintStream getErr() { return err; } }
⏎ org/mozilla/javascript/tools/shell/ConsoleTextArea.java
Or download all of them as a single archive file:
File name: rhino-1.7.14-sources.jar File size: 1029165 bytes Release date: 2022-01-06 Download
⇒ Example code to Test rhino-runtime-1.7.14.jar
⇐ Download Rhino JavaScript Binary Package
2022-05-03, 35590👍, 1💬
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