Initial code for Terminal app, with JNI glue.

Change-Id: I4b2ecb2eef9bef7a8236391d19a3708751a7c71d

3 files changed, 222 insertions, 0 deletions

diff --git a/jni/Android.mk b/jni/Android.mk
new file mode 100644
index 0000000..0563efc
--- /dev/null
+++ b/jni/Android.mk
@@ -0,0 +1,22 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    jni_init.cpp \
+    com_android_terminal_Terminal.cpp
+
+LOCAL_C_INCLUDES += \
+    external/libvterm/include
+
+LOCAL_SHARED_LIBRARIES := \
+    libutils \
+    libnativehelper
+
+LOCAL_STATIC_LIBRARIES := \
+    libvterm
+
+LOCAL_MODULE := libjni_terminal
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/jni/com_android_terminal_Terminal.cpp b/jni/com_android_terminal_Terminal.cpp
new file mode 100644
index 0000000..ed84619
--- /dev/null
+++ b/jni/com_android_terminal_Terminal.cpp
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Terminal"
+
+#include <utils/Log.h>
+#include "jni.h"
+#include "JNIHelp.h"
+
+#include <vterm.h>
+
+#include <string.h>
+
+namespace android {
+
+class Terminal;
+
+/*
+ * VTerm event handlers
+ */
+
+static int term_damage(VTermRect rect, void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_damage");
+    return 1;
+}
+
+static int term_prescroll(VTermRect rect, void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_prescroll");
+    return 1;
+}
+
+static int term_moverect(VTermRect dest, VTermRect src, void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_moverect");
+    return 1;
+}
+
+static int term_movecursor(VTermPos pos, VTermPos oldpos, int visible, void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_movecursor");
+    return 1;
+}
+
+static int term_settermprop(VTermProp prop, VTermValue *val, void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_settermprop");
+    return 1;
+}
+
+static int term_setmousefunc(VTermMouseFunc func, void *data, void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_setmousefunc");
+    return 1;
+}
+
+static int term_bell(void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_bell");
+    return 1;
+}
+
+static int term_resize(int rows, int cols, void *user) {
+    Terminal* term = reinterpret_cast<Terminal*>(user);
+    ALOGW("term_resize");
+    return 1;
+}
+
+static VTermScreenCallbacks cb = {
+    .damage = term_damage,
+    .prescroll = term_prescroll,
+    .moverect = term_moverect,
+    .movecursor = term_movecursor,
+    .settermprop = term_settermprop,
+    .setmousefunc = term_setmousefunc,
+    .bell = term_bell,
+    .resize = term_resize,
+};
+
+/*
+ * Terminal session
+ */
+
+class Terminal {
+public:
+    Terminal(int rows, int cols);
+    ~Terminal();
+
+    int getRows();
+
+private:
+    VTerm *mVt;
+    VTermScreen *mVts;
+
+    int mRows;
+    int mCols;
+};
+
+Terminal::Terminal(int rows, int cols) : mRows(rows), mCols(cols) {
+//    pt->writefn = NULL;
+//    pt->resizedfn = NULL;
+
+    /* Create VTerm */
+    mVt = vterm_new(rows, cols);
+    vterm_parser_set_utf8(mVt, 1);
+
+    /* Set up screen */
+    mVts = vterm_obtain_screen(mVt);
+    vterm_screen_enable_altscreen(mVts, 1);
+    vterm_screen_set_callbacks(mVts, &cb, this);
+    vterm_screen_set_damage_merge(mVts, VTERM_DAMAGE_SCROLL);
+
+    // TODO: finish setup and forkpty() here
+}
+
+Terminal::~Terminal() {
+    vterm_free(mVt);
+}
+
+int Terminal::getRows() {
+    return mRows;
+}
+
+/*
+ * JNI glue
+ */
+
+static jint com_android_terminal_Terminal_nativeInit(JNIEnv* env, jclass clazz,
+        jint rows, jint cols) {
+    return reinterpret_cast<jint>(new Terminal(rows, cols));
+}
+
+static jint com_android_terminal_Terminal_nativeGetRows(JNIEnv* env, jclass clazz, jint ptr) {
+    Terminal* term = reinterpret_cast<Terminal*>(ptr);
+    return term->getRows();
+}
+
+static JNINativeMethod gMethods[] = {
+    { "nativeInit", "(II)I", (void*)com_android_terminal_Terminal_nativeInit },
+    { "nativeGetRows", "(I)I", (void*)com_android_terminal_Terminal_nativeGetRows },
+};
+
+int register_com_android_terminal_Terminal(JNIEnv* env) {
+    return jniRegisterNativeMethods(env, "com/android/terminal/Terminal",
+            gMethods, NELEM(gMethods));
+}
+
+} /* namespace android */
diff --git a/jni/jni_init.cpp b/jni/jni_init.cpp
new file mode 100644
index 0000000..c4a262e
--- /dev/null
+++ b/jni/jni_init.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Terminal"
+
+#include <utils/Log.h>
+#include "jni.h"
+
+namespace android {
+extern int register_com_android_terminal_Terminal(JNIEnv *env);
+}
+
+using namespace android;
+
+extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved) {
+    JNIEnv *env;
+    if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
+        ALOGE("ERROR: GetEnv failed");
+        return -1;
+    }
+
+    register_com_android_terminal_Terminal(env);
+
+    return JNI_VERSION_1_6;
+}