virtualx-engine/platform/android/java_godot_wrapper.cpp

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/*************************************************************************/
/* java_godot_wrapper.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "java_godot_wrapper.h"
// JNIEnv is only valid within the thread it belongs to, in a multi threading environment
// we can't cache it.
// For Godot we call most access methods from our thread and we thus get a valid JNIEnv
// from ThreadAndroid. For one or two we expect to pass the environment
// TODO we could probably create a base class for this...
GodotJavaWrapper::GodotJavaWrapper(JNIEnv *p_env, jobject p_activity, jobject p_godot_instance) {
godot_instance = p_env->NewGlobalRef(p_godot_instance);
activity = p_env->NewGlobalRef(p_activity);
// get info about our Godot class so we can get pointers and stuff...
godot_class = p_env->FindClass("org/godotengine/godot/Godot");
if (godot_class) {
godot_class = (jclass)p_env->NewGlobalRef(godot_class);
} else {
// this is a pretty serious fail.. bail... pointers will stay 0
return;
}
activity_class = p_env->FindClass("android/app/Activity");
if (activity_class) {
activity_class = (jclass)p_env->NewGlobalRef(activity_class);
} else {
// this is a pretty serious fail.. bail... pointers will stay 0
return;
}
// get some Godot method pointers...
_on_video_init = p_env->GetMethodID(godot_class, "onVideoInit", "()V");
_restart = p_env->GetMethodID(godot_class, "restart", "()V");
_finish = p_env->GetMethodID(godot_class, "forceQuit", "()V");
_set_keep_screen_on = p_env->GetMethodID(godot_class, "setKeepScreenOn", "(Z)V");
_alert = p_env->GetMethodID(godot_class, "alert", "(Ljava/lang/String;Ljava/lang/String;)V");
_get_GLES_version_code = p_env->GetMethodID(godot_class, "getGLESVersionCode", "()I");
_get_clipboard = p_env->GetMethodID(godot_class, "getClipboard", "()Ljava/lang/String;");
_set_clipboard = p_env->GetMethodID(godot_class, "setClipboard", "(Ljava/lang/String;)V");
_request_permission = p_env->GetMethodID(godot_class, "requestPermission", "(Ljava/lang/String;)Z");
_request_permissions = p_env->GetMethodID(godot_class, "requestPermissions", "()Z");
_get_granted_permissions = p_env->GetMethodID(godot_class, "getGrantedPermissions", "()[Ljava/lang/String;");
_init_input_devices = p_env->GetMethodID(godot_class, "initInputDevices", "()V");
_get_surface = p_env->GetMethodID(godot_class, "getSurface", "()Landroid/view/Surface;");
_is_activity_resumed = p_env->GetMethodID(godot_class, "isActivityResumed", "()Z");
_vibrate = p_env->GetMethodID(godot_class, "vibrate", "(I)V");
_get_input_fallback_mapping = p_env->GetMethodID(godot_class, "getInputFallbackMapping", "()Ljava/lang/String;");
_on_godot_main_loop_started = p_env->GetMethodID(godot_class, "onGodotMainLoopStarted", "()V");
// get some Activity method pointers...
_get_class_loader = p_env->GetMethodID(activity_class, "getClassLoader", "()Ljava/lang/ClassLoader;");
}
GodotJavaWrapper::~GodotJavaWrapper() {
// nothing to do here for now
}
jobject GodotJavaWrapper::get_activity() {
return activity;
}
jobject GodotJavaWrapper::get_member_object(const char *p_name, const char *p_class, JNIEnv *p_env) {
if (godot_class) {
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if (p_env == nullptr)
p_env = ThreadAndroid::get_env();
jfieldID fid = p_env->GetStaticFieldID(godot_class, p_name, p_class);
return p_env->GetStaticObjectField(godot_class, fid);
} else {
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return nullptr;
}
}
jobject GodotJavaWrapper::get_class_loader() {
if (_get_class_loader) {
JNIEnv *env = ThreadAndroid::get_env();
return env->CallObjectMethod(godot_instance, _get_class_loader);
} else {
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return nullptr;
}
}
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GodotJavaViewWrapper *GodotJavaWrapper::get_godot_view() {
if (_godot_view != nullptr) {
return _godot_view;
}
JNIEnv *env = ThreadAndroid::get_env();
jmethodID godot_view_getter = env->GetMethodID(godot_class, "getRenderView", "()Lorg/godotengine/godot/GodotRenderView;");
_godot_view = new GodotJavaViewWrapper(env->CallObjectMethod(godot_instance, godot_view_getter));
return _godot_view;
}
void GodotJavaWrapper::on_video_init(JNIEnv *p_env) {
if (_on_video_init)
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if (p_env == nullptr)
p_env = ThreadAndroid::get_env();
p_env->CallVoidMethod(godot_instance, _on_video_init);
}
void GodotJavaWrapper::on_godot_main_loop_started(JNIEnv *p_env) {
if (_on_godot_main_loop_started) {
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if (p_env == nullptr) {
p_env = ThreadAndroid::get_env();
}
}
p_env->CallVoidMethod(godot_instance, _on_godot_main_loop_started);
}
void GodotJavaWrapper::restart(JNIEnv *p_env) {
if (_restart)
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if (p_env == nullptr)
p_env = ThreadAndroid::get_env();
p_env->CallVoidMethod(godot_instance, _restart);
}
void GodotJavaWrapper::force_quit(JNIEnv *p_env) {
if (_finish)
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if (p_env == nullptr)
p_env = ThreadAndroid::get_env();
p_env->CallVoidMethod(godot_instance, _finish);
}
void GodotJavaWrapper::set_keep_screen_on(bool p_enabled) {
if (_set_keep_screen_on) {
JNIEnv *env = ThreadAndroid::get_env();
env->CallVoidMethod(godot_instance, _set_keep_screen_on, p_enabled);
}
}
void GodotJavaWrapper::alert(const String &p_message, const String &p_title) {
if (_alert) {
JNIEnv *env = ThreadAndroid::get_env();
jstring jStrMessage = env->NewStringUTF(p_message.utf8().get_data());
jstring jStrTitle = env->NewStringUTF(p_title.utf8().get_data());
env->CallVoidMethod(godot_instance, _alert, jStrMessage, jStrTitle);
}
}
int GodotJavaWrapper::get_gles_version_code() {
JNIEnv *env = ThreadAndroid::get_env();
if (_get_GLES_version_code) {
return env->CallIntMethod(godot_instance, _get_GLES_version_code);
}
return 0;
}
bool GodotJavaWrapper::has_get_clipboard() {
return _get_clipboard != 0;
}
String GodotJavaWrapper::get_clipboard() {
if (_get_clipboard) {
JNIEnv *env = ThreadAndroid::get_env();
jstring s = (jstring)env->CallObjectMethod(godot_instance, _get_clipboard);
return jstring_to_string(s, env);
} else {
return String();
}
}
String GodotJavaWrapper::get_input_fallback_mapping() {
if (_get_input_fallback_mapping) {
JNIEnv *env = ThreadAndroid::get_env();
jstring fallback_mapping = (jstring)env->CallObjectMethod(godot_instance, _get_input_fallback_mapping);
return jstring_to_string(fallback_mapping, env);
} else {
return String();
}
}
bool GodotJavaWrapper::has_set_clipboard() {
return _set_clipboard != 0;
}
void GodotJavaWrapper::set_clipboard(const String &p_text) {
if (_set_clipboard) {
JNIEnv *env = ThreadAndroid::get_env();
jstring jStr = env->NewStringUTF(p_text.utf8().get_data());
env->CallVoidMethod(godot_instance, _set_clipboard, jStr);
}
}
bool GodotJavaWrapper::request_permission(const String &p_name) {
if (_request_permission) {
JNIEnv *env = ThreadAndroid::get_env();
jstring jStrName = env->NewStringUTF(p_name.utf8().get_data());
return env->CallBooleanMethod(godot_instance, _request_permission, jStrName);
} else {
return false;
}
}
bool GodotJavaWrapper::request_permissions() {
if (_request_permissions) {
JNIEnv *env = ThreadAndroid::get_env();
return env->CallBooleanMethod(godot_instance, _request_permissions);
} else {
return false;
}
}
Vector<String> GodotJavaWrapper::get_granted_permissions() const {
Vector<String> permissions_list;
if (_get_granted_permissions) {
JNIEnv *env = ThreadAndroid::get_env();
jobject permissions_object = env->CallObjectMethod(godot_instance, _get_granted_permissions);
jobjectArray *arr = reinterpret_cast<jobjectArray *>(&permissions_object);
int i = 0;
jsize len = env->GetArrayLength(*arr);
for (i = 0; i < len; i++) {
jstring jstr = (jstring)env->GetObjectArrayElement(*arr, i);
String str = jstring_to_string(jstr, env);
permissions_list.push_back(str);
env->DeleteLocalRef(jstr);
}
}
return permissions_list;
}
void GodotJavaWrapper::init_input_devices() {
if (_init_input_devices) {
JNIEnv *env = ThreadAndroid::get_env();
env->CallVoidMethod(godot_instance, _init_input_devices);
}
}
jobject GodotJavaWrapper::get_surface() {
if (_get_surface) {
JNIEnv *env = ThreadAndroid::get_env();
return env->CallObjectMethod(godot_instance, _get_surface);
} else {
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return nullptr;
}
}
bool GodotJavaWrapper::is_activity_resumed() {
if (_is_activity_resumed) {
JNIEnv *env = ThreadAndroid::get_env();
return env->CallBooleanMethod(godot_instance, _is_activity_resumed);
} else {
return false;
}
}
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void GodotJavaWrapper::vibrate(int p_duration_ms) {
if (_vibrate) {
JNIEnv *env = ThreadAndroid::get_env();
env->CallVoidMethod(godot_instance, _vibrate, p_duration_ms);
}
}