59d680f4e9
Summary: Upgrades Yoga’s copy of *fbjni* to the latest version. This will enable us - to move from `finalize()` to `PhantomReference` to deallocate native memory, with the potential of making GC more efficient. - to remove the internal dependency to *libfb,* allowing apps without an own dependency to ship less code Reviewed By: passy Differential Revision: D16220924 fbshipit-source-id: e8233fe2b5403946ff51f43cb6def558ded52fda
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
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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 <fbjni/fbjni.h>
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#include <yoga/YGValue.h>
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#include <yoga/Yoga.h>
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#include <map>
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using namespace facebook::jni;
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using namespace std;
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struct JYogaNode : public facebook::jni::JavaClass<JYogaNode> {
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static constexpr auto kJavaDescriptor = "Lcom/facebook/yoga/YogaNodeJNIBase;";
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jfloat baseline(jfloat width, jfloat height);
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jlong measure(jfloat width, jint widthMode, jfloat height, jint heightMode);
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};
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struct JYogaLogLevel : public facebook::jni::JavaClass<JYogaLogLevel> {
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static constexpr auto kJavaDescriptor = "Lcom/facebook/yoga/YogaLogLevel;";
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static facebook::jni::local_ref<JYogaLogLevel> fromInt(jint);
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};
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struct JYogaLogger : public facebook::jni::JavaClass<JYogaLogger> {
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static constexpr auto kJavaDescriptor = "Lcom/facebook/yoga/YogaLogger";
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void log(
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facebook::jni::alias_ref<JYogaNode>,
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facebook::jni::alias_ref<JYogaLogLevel>,
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jstring);
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};
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class PtrJNodeMap {
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using JNodeArray = JArrayClass<JYogaNode::javaobject>;
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std::map<YGNodeRef, size_t> ptrsToIdxs_;
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alias_ref<JNodeArray> javaNodes_;
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public:
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PtrJNodeMap() : ptrsToIdxs_{}, javaNodes_{} {}
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PtrJNodeMap(
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alias_ref<JArrayLong> nativePointers,
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alias_ref<JNodeArray> javaNodes)
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: javaNodes_{javaNodes} {
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auto pin = nativePointers->pinCritical();
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auto ptrs = pin.get();
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for (size_t i = 0, n = pin.size(); i < n; ++i) {
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ptrsToIdxs_[(YGNodeRef) ptrs[i]] = i;
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}
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}
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local_ref<JYogaNode> ref(YGNodeRef node) {
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auto idx = ptrsToIdxs_.find(node);
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if (idx == ptrsToIdxs_.end()) {
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return local_ref<JYogaNode>{};
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} else {
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return javaNodes_->getElement(idx->second);
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}
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}
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};
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