mirror of
https://github.com/openjdk/jdk.git
synced 2026-03-14 09:53:18 +00:00
128 lines
4.4 KiB
C++
128 lines
4.4 KiB
C++
/*
|
|
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation. Oracle designates this
|
|
* particular file as subject to the "Classpath" exception as provided
|
|
* by Oracle in the LICENSE file that accompanied this code.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
#include "jni.h"
|
|
#include "jni_util.h"
|
|
#include "jvm.h"
|
|
#include "jdk_internal_jline_WindowsTerminal.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <Wincon.h>
|
|
#include <Winuser.h>
|
|
|
|
static jclass recordClass;
|
|
static jmethodID recordConstructor;
|
|
|
|
JNIEXPORT void JNICALL Java_jdk_internal_jline_WindowsTerminal_initIDs
|
|
(JNIEnv *env, jclass) {
|
|
jclass cls = env->FindClass("jdk/internal/jline/WindowsTerminal$KEY_EVENT_RECORD");
|
|
CHECK_NULL(cls);
|
|
recordClass = (jclass) env->NewGlobalRef(cls);
|
|
CHECK_NULL(recordClass);
|
|
recordConstructor = env->GetMethodID(cls, "<init>", "(ZCIII)V");
|
|
CHECK_NULL(recordConstructor);
|
|
}
|
|
|
|
JNIEXPORT jint JNICALL Java_jdk_internal_jline_WindowsTerminal_getConsoleMode
|
|
(JNIEnv *, jobject) {
|
|
HANDLE hStdIn;
|
|
if ((hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
|
|
return -1;
|
|
}
|
|
DWORD fdwMode;
|
|
if (! GetConsoleMode(hStdIn, &fdwMode)) {
|
|
return -1;
|
|
}
|
|
return fdwMode;
|
|
}
|
|
|
|
JNIEXPORT void JNICALL Java_jdk_internal_jline_WindowsTerminal_setConsoleMode
|
|
(JNIEnv *, jobject, jint mode) {
|
|
HANDLE hStdIn;
|
|
if ((hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
|
|
return ;
|
|
}
|
|
DWORD fdwMode = mode;
|
|
SetConsoleMode(hStdIn, fdwMode);
|
|
}
|
|
|
|
JNIEXPORT jobject JNICALL Java_jdk_internal_jline_WindowsTerminal_readKeyEvent
|
|
(JNIEnv *env, jobject) {
|
|
HANDLE hStdIn;
|
|
if ((hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
|
|
return NULL;
|
|
}
|
|
INPUT_RECORD record;
|
|
DWORD n;
|
|
while (TRUE) {
|
|
if (ReadConsoleInput(hStdIn, &record, 1, &n) == 0) {
|
|
return NULL;
|
|
}
|
|
if (record.EventType == KEY_EVENT) {
|
|
jclass clazz = env->FindClass("jdk/internal/jline/WindowsTerminal$KEY_EVENT_RECORD");
|
|
jmethodID constr = env->GetMethodID(clazz, "<init>", "(ZCIII)V");
|
|
return env->NewObject(recordClass,
|
|
recordConstructor,
|
|
record.Event.KeyEvent.bKeyDown,
|
|
record.Event.KeyEvent.uChar.UnicodeChar,
|
|
record.Event.KeyEvent.dwControlKeyState,
|
|
record.Event.KeyEvent.wVirtualKeyCode,
|
|
record.Event.KeyEvent.wRepeatCount);
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
JNIEXPORT jint JNICALL Java_jdk_internal_jline_WindowsTerminal_getConsoleOutputCodepage
|
|
(JNIEnv *, jobject) {
|
|
return GetConsoleCP();
|
|
}
|
|
|
|
JNIEXPORT jint JNICALL Java_jdk_internal_jline_WindowsTerminal_getWindowsTerminalWidth
|
|
(JNIEnv *, jobject) {
|
|
HANDLE hStdOut;
|
|
if ((hStdOut = GetStdHandle(STD_OUTPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
|
|
return -1;
|
|
}
|
|
CONSOLE_SCREEN_BUFFER_INFO info;
|
|
if (! GetConsoleScreenBufferInfo(hStdOut, &info)) {
|
|
return -1;
|
|
}
|
|
return info.srWindow.Right - info.srWindow.Left;
|
|
}
|
|
|
|
JNIEXPORT jint JNICALL Java_jdk_internal_jline_WindowsTerminal_getWindowsTerminalHeight
|
|
(JNIEnv *, jobject) {
|
|
HANDLE hStdOut;
|
|
if ((hStdOut = GetStdHandle(STD_OUTPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
|
|
return -1;
|
|
}
|
|
CONSOLE_SCREEN_BUFFER_INFO info;
|
|
if (! GetConsoleScreenBufferInfo(hStdOut, &info)) {
|
|
return -1;
|
|
}
|
|
return info.srWindow.Bottom - info.srWindow.Top + 1;
|
|
}
|