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JansiWinSysTerminal.java
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JansiWinSysTerminal.java
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/*
* Copyright (c) 2002-2020, the original author or authors.
*
* This software is distributable under the BSD license. See the terms of the
* BSD license in the documentation provided with this software.
*
* https://opensource.org/licenses/BSD-3-Clause
*/
package org.jline.terminal.impl.jansi.win;
import java.io.BufferedWriter;
import java.io.IOError;
import java.io.IOException;
import java.io.Writer;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.function.IntConsumer;
import org.fusesource.jansi.internal.Kernel32;
import org.fusesource.jansi.internal.Kernel32.CONSOLE_SCREEN_BUFFER_INFO;
import org.fusesource.jansi.internal.Kernel32.INPUT_RECORD;
import org.fusesource.jansi.internal.Kernel32.KEY_EVENT_RECORD;
import org.jline.terminal.Cursor;
import org.jline.terminal.Size;
import org.jline.terminal.impl.AbstractWindowsTerminal;
import org.jline.utils.InfoCmp;
import org.jline.utils.OSUtils;
import static org.fusesource.jansi.internal.Kernel32.FORMAT_MESSAGE_FROM_SYSTEM;
import static org.fusesource.jansi.internal.Kernel32.FormatMessageW;
import static org.fusesource.jansi.internal.Kernel32.GetConsoleScreenBufferInfo;
import static org.fusesource.jansi.internal.Kernel32.GetLastError;
import static org.fusesource.jansi.internal.Kernel32.GetStdHandle;
import static org.fusesource.jansi.internal.Kernel32.INVALID_HANDLE_VALUE;
import static org.fusesource.jansi.internal.Kernel32.STD_INPUT_HANDLE;
import static org.fusesource.jansi.internal.Kernel32.STD_OUTPUT_HANDLE;
import static org.fusesource.jansi.internal.Kernel32.WaitForSingleObject;
import static org.fusesource.jansi.internal.Kernel32.readConsoleInputHelper;
public class JansiWinSysTerminal extends AbstractWindowsTerminal {
private static final long consoleOut = GetStdHandle(STD_OUTPUT_HANDLE);
private static final long consoleIn = GetStdHandle(STD_INPUT_HANDLE);
public static JansiWinSysTerminal createTerminal(String name, String type, boolean ansiPassThrough, Charset encoding, int codepage, boolean nativeSignals, SignalHandler signalHandler, boolean paused) throws IOException {
Writer writer;
if (ansiPassThrough) {
if (type == null) {
type = OSUtils.IS_CONEMU ? TYPE_WINDOWS_CONEMU : TYPE_WINDOWS;
}
writer = new JansiWinConsoleWriter();
} else {
int[] mode = new int[1];
if (Kernel32.GetConsoleMode(consoleOut, mode) == 0 ) {
throw new IOException("Failed to get console mode: " + getLastErrorMessage());
}
if (Kernel32.SetConsoleMode(consoleOut, mode[0] | AbstractWindowsTerminal.ENABLE_VIRTUAL_TERMINAL_PROCESSING) != 0) {
if (type == null) {
type = TYPE_WINDOWS_VTP;
}
writer = new JansiWinConsoleWriter();
} else if (OSUtils.IS_CONEMU) {
if (type == null) {
type = TYPE_WINDOWS_CONEMU;
}
writer = new JansiWinConsoleWriter();
} else {
if (type == null) {
type = TYPE_WINDOWS;
}
writer = new WindowsAnsiWriter(new BufferedWriter(new JansiWinConsoleWriter()));
}
if (Kernel32.GetConsoleMode(consoleIn, mode) == 0) {
throw new IOException("Failed to get console mode: " + getLastErrorMessage());
}
}
JansiWinSysTerminal terminal = new JansiWinSysTerminal(writer, name, type, encoding, codepage, nativeSignals, signalHandler);
// Start input pump thread
if (!paused) {
terminal.resume();
}
return terminal;
}
public static boolean isWindowsConsole() {
int[] mode = new int[1];
return Kernel32.GetConsoleMode(consoleOut, mode) != 0 && Kernel32.GetConsoleMode(consoleIn, mode) != 0;
}
public static boolean isConsoleOutput() {
int[] mode = new int[1];
return Kernel32.GetConsoleMode(consoleOut, mode) != 0;
}
JansiWinSysTerminal(Writer writer, String name, String type, Charset encoding, int codepage, boolean nativeSignals, SignalHandler signalHandler) throws IOException {
super(writer, name, type, encoding, codepage, nativeSignals, signalHandler);
}
@Override
protected int getConsoleMode() {
long console = GetStdHandle(STD_INPUT_HANDLE);
int[] mode = new int[1];
if (Kernel32.GetConsoleMode(console, mode) == 0) {
return -1;
}
return mode[0];
}
@Override
protected void setConsoleMode(int mode) {
long console = GetStdHandle (STD_INPUT_HANDLE);
Kernel32.SetConsoleMode(console, mode);
}
public Size getSize() {
long outputHandle = Kernel32.GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO info = new CONSOLE_SCREEN_BUFFER_INFO();
Kernel32.GetConsoleScreenBufferInfo(outputHandle, info);
return new Size(info.windowWidth(), info.windowHeight());
}
@Override
public Size getBufferSize() {
long outputHandle = Kernel32.GetStdHandle(Kernel32.STD_OUTPUT_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO info = new CONSOLE_SCREEN_BUFFER_INFO();
Kernel32.GetConsoleScreenBufferInfo(outputHandle, info);
return new Size(info.size.x, info.size.y);
}
protected boolean processConsoleInput() throws IOException {
INPUT_RECORD[] events;
long console = GetStdHandle (STD_INPUT_HANDLE);
if (console != INVALID_HANDLE_VALUE
&& WaitForSingleObject(console, 100) == 0) {
events = readConsoleInputHelper(console, 1, false);
} else {
return false;
}
boolean flush = false;
for (INPUT_RECORD event : events) {
if (event.eventType == INPUT_RECORD.KEY_EVENT) {
KEY_EVENT_RECORD keyEvent = event.keyEvent;
processKeyEvent(keyEvent.keyDown , keyEvent.keyCode, keyEvent.uchar, keyEvent.controlKeyState);
flush = true;
} else if (event.eventType == INPUT_RECORD.WINDOW_BUFFER_SIZE_EVENT) {
raise(Signal.WINCH);
} else if (event.eventType == INPUT_RECORD.MOUSE_EVENT) {
processMouseEvent(event.mouseEvent);
flush = true;
} else if (event.eventType == INPUT_RECORD.FOCUS_EVENT) {
processFocusEvent(event.focusEvent.setFocus);
}
}
return flush;
}
private char[] focus = new char[] { '\033', '[', ' ' };
private void processFocusEvent(boolean hasFocus) throws IOException {
if (focusTracking) {
focus[2] = hasFocus ? 'I' : 'O';
slaveInputPipe.write(focus);
}
}
private char[] mouse = new char[] { '\033', '[', 'M', ' ', ' ', ' ' };
private void processMouseEvent(Kernel32.MOUSE_EVENT_RECORD mouseEvent) throws IOException {
int dwEventFlags = mouseEvent.eventFlags;
int dwButtonState = mouseEvent.buttonState;
if (tracking == MouseTracking.Off
|| tracking == MouseTracking.Normal && dwEventFlags == Kernel32.MOUSE_EVENT_RECORD.MOUSE_MOVED
|| tracking == MouseTracking.Button && dwEventFlags == Kernel32.MOUSE_EVENT_RECORD.MOUSE_MOVED && dwButtonState == 0) {
return;
}
int cb = 0;
dwEventFlags &= ~ Kernel32.MOUSE_EVENT_RECORD.DOUBLE_CLICK; // Treat double-clicks as normal
if (dwEventFlags == Kernel32.MOUSE_EVENT_RECORD.MOUSE_WHEELED) {
cb |= 64;
if ((dwButtonState >> 16) < 0) {
cb |= 1;
}
} else if (dwEventFlags == Kernel32.MOUSE_EVENT_RECORD.MOUSE_HWHEELED) {
return;
} else if ((dwButtonState & Kernel32.MOUSE_EVENT_RECORD.FROM_LEFT_1ST_BUTTON_PRESSED) != 0) {
cb |= 0x00;
} else if ((dwButtonState & Kernel32.MOUSE_EVENT_RECORD.RIGHTMOST_BUTTON_PRESSED) != 0) {
cb |= 0x01;
} else if ((dwButtonState & Kernel32.MOUSE_EVENT_RECORD.FROM_LEFT_2ND_BUTTON_PRESSED) != 0) {
cb |= 0x02;
} else {
cb |= 0x03;
}
int cx = mouseEvent.mousePosition.x;
int cy = mouseEvent.mousePosition.y;
mouse[3] = (char) (' ' + cb);
mouse[4] = (char) (' ' + cx + 1);
mouse[5] = (char) (' ' + cy + 1);
slaveInputPipe.write(mouse);
}
@Override
public Cursor getCursorPosition(IntConsumer discarded) {
CONSOLE_SCREEN_BUFFER_INFO info = new CONSOLE_SCREEN_BUFFER_INFO();
long console = GetStdHandle(STD_OUTPUT_HANDLE);
if (GetConsoleScreenBufferInfo(console, info) == 0) {
throw new IOError(new IOException("Could not get the cursor position: " + getLastErrorMessage()));
}
return new Cursor(info.cursorPosition.x, info.cursorPosition.y);
}
public void disableScrolling() {
strings.remove(InfoCmp.Capability.insert_line);
strings.remove(InfoCmp.Capability.parm_insert_line);
strings.remove(InfoCmp.Capability.delete_line);
strings.remove(InfoCmp.Capability.parm_delete_line);
}
static String getLastErrorMessage() {
int errorCode = GetLastError();
return getErrorMessage(errorCode);
}
static String getErrorMessage(int errorCode) {
int bufferSize = 160;
byte[] data = new byte[bufferSize];
FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM, 0, errorCode, 0, data, bufferSize, null);
return new String(data, StandardCharsets.UTF_16LE).trim();
}
}