jdk/src/jdk.internal.le/windows/native/lible/WindowsTerminal.cpp
changeset 31530 aa87d96a02b1
child 43107 b232ec246f2b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.internal.le/windows/native/lible/WindowsTerminal.cpp	Tue Jul 07 13:17:53 2015 +0200
@@ -0,0 +1,127 @@
+/*
+ * 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 hStdIn;
+    if ((hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
+        return -1;
+    }
+    CONSOLE_SCREEN_BUFFER_INFO info;
+    if (! GetConsoleScreenBufferInfo(hStdIn, &info)) {
+        return -1;
+    }
+    return info.dwSize.X;
+}
+
+JNIEXPORT jint JNICALL Java_jdk_internal_jline_WindowsTerminal_getWindowsTerminalHeight
+  (JNIEnv *, jobject) {
+    HANDLE hStdIn;
+    if ((hStdIn = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
+        return -1;
+    }
+    CONSOLE_SCREEN_BUFFER_INFO info;
+    if (! GetConsoleScreenBufferInfo(hStdIn, &info)) {
+        return -1;
+    }
+    return info.dwSize.Y;
+}