56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the LICENSE
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* file in the root directory of this source tree.
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*/
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#include "jni.h"
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#include "YGJNIVanilla.h"
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#include <yoga/YGNode.h>
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static inline YGNodeRef _jlong2YGNodeRef(jlong addr) {
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return reinterpret_cast<YGNodeRef>(static_cast<intptr_t>(addr));
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}
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void jni_YGNodeStyleSetFlexJNI(
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JNIEnv* env,
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jobject obj,
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jlong nativePointer,
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jfloat value) {
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YGNodeStyleSetFlex(
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_jlong2YGNodeRef(nativePointer), static_cast<float>(value));
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}
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void assertNoPendingJniException(JNIEnv* env) {
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// This method cannot call any other method of the library, since other
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// methods of the library use it to check for exceptions too
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if (env->ExceptionCheck()) {
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env->ExceptionDescribe();
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}
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}
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void registerNativeMethods(
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JNIEnv* env,
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const char* className,
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JNINativeMethod methods[],
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size_t numMethods) {
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jclass clazz = env->FindClass(className);
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assertNoPendingJniException(env);
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env->RegisterNatives(clazz, methods, numMethods);
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assertNoPendingJniException(env);
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}
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static JNINativeMethod methods[] = {
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{"jni_YGNodeStyleSetFlexJNI", "(JF)V", (void*) jni_YGNodeStyleSetFlexJNI}};
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void YGJNIVanilla::registerNatives(JNIEnv* env) {
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registerNativeMethods(
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env,
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"com/facebook/yoga/YogaNative",
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methods,
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sizeof(methods) / sizeof(JNINativeMethod));
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}
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