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godot/platform/android/api/java_class_wrapper.h

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/**************************************************************************/
/* java_class_wrapper.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#ifndef JAVA_CLASS_WRAPPER_H
#define JAVA_CLASS_WRAPPER_H
#include "core/object/ref_counted.h"
#include "core/variant/typed_array.h"
#ifdef ANDROID_ENABLED
#include <android/log.h>
#include <jni.h>
#endif
#ifdef ANDROID_ENABLED
class JavaObject;
#endif
class JavaClass : public RefCounted {
GDCLASS(JavaClass, RefCounted);
#ifdef ANDROID_ENABLED
enum ArgumentType{
ARG_TYPE_VOID,
ARG_TYPE_BOOLEAN,
ARG_TYPE_BYTE,
ARG_TYPE_CHAR,
ARG_TYPE_SHORT,
ARG_TYPE_INT,
ARG_TYPE_LONG,
ARG_TYPE_FLOAT,
ARG_TYPE_DOUBLE,
ARG_TYPE_STRING, //special case
ARG_TYPE_CLASS,
ARG_ARRAY_BIT = 1 << 16,
ARG_NUMBER_CLASS_BIT = 1 << 17,
ARG_TYPE_MASK = (1 << 16) - 1
};
RBMap<StringName, Variant> constant_map;
struct MethodInfo {
bool _static = false;
bool _constructor = false;
Vector<uint32_t> param_types;
Vector<StringName> param_sigs;
uint32_t return_type = 0;
jmethodID method;
};
_FORCE_INLINE_ static void _convert_to_variant_type(int p_sig, Variant::Type &r_type, float &likelihood) {
likelihood = 1.0;
r_type = Variant::NIL;
switch (p_sig) {
case ARG_TYPE_VOID:
r_type = Variant::NIL;
break;
case ARG_TYPE_BOOLEAN | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_BOOLEAN:
r_type = Variant::BOOL;
break;
case ARG_TYPE_BYTE | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_BYTE:
r_type = Variant::INT;
likelihood = 0.1;
break;
case ARG_TYPE_CHAR | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_CHAR:
r_type = Variant::INT;
likelihood = 0.2;
break;
case ARG_TYPE_SHORT | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_SHORT:
r_type = Variant::INT;
likelihood = 0.3;
break;
case ARG_TYPE_INT | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_INT:
r_type = Variant::INT;
likelihood = 1.0;
break;
case ARG_TYPE_LONG | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_LONG:
r_type = Variant::INT;
likelihood = 0.5;
break;
case ARG_TYPE_FLOAT | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_FLOAT:
r_type = Variant::FLOAT;
likelihood = 1.0;
break;
case ARG_TYPE_DOUBLE | ARG_NUMBER_CLASS_BIT:
case ARG_TYPE_DOUBLE:
r_type = Variant::FLOAT;
likelihood = 0.5;
break;
case ARG_TYPE_STRING:
r_type = Variant::STRING;
break;
case ARG_TYPE_CLASS:
r_type = Variant::OBJECT;
break;
case ARG_ARRAY_BIT | ARG_TYPE_VOID:
r_type = Variant::NIL;
break;
case ARG_ARRAY_BIT | ARG_TYPE_BOOLEAN:
r_type = Variant::ARRAY;
break;
case ARG_ARRAY_BIT | ARG_TYPE_BYTE:
r_type = Variant::PACKED_BYTE_ARRAY;
likelihood = 1.0;
break;
case ARG_ARRAY_BIT | ARG_TYPE_CHAR:
r_type = Variant::PACKED_BYTE_ARRAY;
likelihood = 0.5;
break;
case ARG_ARRAY_BIT | ARG_TYPE_SHORT:
r_type = Variant::PACKED_INT32_ARRAY;
likelihood = 0.3;
break;
case ARG_ARRAY_BIT | ARG_TYPE_INT:
r_type = Variant::PACKED_INT32_ARRAY;
likelihood = 1.0;
break;
case ARG_ARRAY_BIT | ARG_TYPE_LONG:
r_type = Variant::PACKED_INT32_ARRAY;
likelihood = 0.5;
break;
case ARG_ARRAY_BIT | ARG_TYPE_FLOAT:
r_type = Variant::PACKED_FLOAT32_ARRAY;
likelihood = 1.0;
break;
case ARG_ARRAY_BIT | ARG_TYPE_DOUBLE:
r_type = Variant::PACKED_FLOAT32_ARRAY;
likelihood = 0.5;
break;
case ARG_ARRAY_BIT | ARG_TYPE_STRING:
r_type = Variant::PACKED_STRING_ARRAY;
break;
case ARG_ARRAY_BIT | ARG_TYPE_CLASS:
r_type = Variant::ARRAY;
break;
}
}
_FORCE_INLINE_ static bool _convert_object_to_variant(JNIEnv *env, jobject obj, Variant &var, uint32_t p_sig);
bool _call_method(JavaObject *p_instance, const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error, Variant &ret);
friend class JavaClassWrapper;
friend class JavaObject;
String java_class_name;
String java_constructor_name;
HashMap<StringName, List<MethodInfo>> methods;
jclass _class;
#endif
protected:
static void _bind_methods();
public:
virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
String get_java_class_name() const;
TypedArray<Dictionary> get_java_method_list() const;
Ref<JavaClass> get_java_parent_class() const;
#ifdef ANDROID_ENABLED
virtual String to_string() override;
#endif
JavaClass();
~JavaClass();
};
class JavaObject : public RefCounted {
GDCLASS(JavaObject, RefCounted);
#ifdef ANDROID_ENABLED
Ref<JavaClass> base_class;
friend class JavaClass;
jobject instance = nullptr;
#endif
protected:
static void _bind_methods();
public:
virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
Ref<JavaClass> get_java_class() const;
#ifdef ANDROID_ENABLED
virtual String to_string() override;
jobject get_instance() { return instance; }
JavaObject();
JavaObject(const Ref<JavaClass> &p_base, jobject p_instance);
~JavaObject();
#endif
};
class JavaClassWrapper : public Object {
GDCLASS(JavaClassWrapper, Object);
#ifdef ANDROID_ENABLED
RBMap<String, Ref<JavaClass>> class_cache;
friend class JavaClass;
jmethodID Class_getDeclaredConstructors;
jmethodID Class_getDeclaredMethods;
jmethodID Class_getFields;
jmethodID Class_getName;
jmethodID Class_getSuperclass;
jmethodID Constructor_getParameterTypes;
jmethodID Constructor_getModifiers;
jmethodID Method_getParameterTypes;
jmethodID Method_getReturnType;
jmethodID Method_getModifiers;
jmethodID Method_getName;
jmethodID Field_getName;
jmethodID Field_getModifiers;
jmethodID Field_get;
jmethodID Boolean_booleanValue;
jmethodID Byte_byteValue;
jmethodID Character_characterValue;
jmethodID Short_shortValue;
jmethodID Integer_integerValue;
jmethodID Long_longValue;
jmethodID Float_floatValue;
jmethodID Double_doubleValue;
bool _get_type_sig(JNIEnv *env, jobject obj, uint32_t &sig, String &strsig);
#endif
static JavaClassWrapper *singleton;
protected:
static void _bind_methods();
public:
static JavaClassWrapper *get_singleton() { return singleton; }
Ref<JavaClass> wrap(const String &p_class);
#ifdef ANDROID_ENABLED
Ref<JavaClass> wrap_jclass(jclass p_class);
JavaClassWrapper(jobject p_activity = nullptr);
#else
JavaClassWrapper();
#endif
};
#endif // JAVA_CLASS_WRAPPER_H
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