mirror of
https://github.com/zhigang1992/react-native.git
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Add CSSLayout to ReactCommon
Summary: First step to sharing CSSLayout code between iOS and Android. Reviewed By: emilsjolander Differential Revision: D4160286 fbshipit-source-id: 976f5820b19a7011e0a14317c858465f932e1f59
This commit is contained in:
Andy Street
committed by
Facebook Github Bot
Facebook Github Bot
parent
100b27cc7a
commit
974eec8264
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/**
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* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#include <CSSLayout/CSSLayout.h>
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#include <fb/fbjni.h>
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#include <iostream>
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using namespace facebook::jni;
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using namespace std;
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static void _jniTransferLayoutDirection(CSSNodeRef node, alias_ref<jobject> javaNode) {
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static auto layoutDirectionField = javaNode->getClass()->getField<jint>("mLayoutDirection");
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javaNode->setFieldValue(layoutDirectionField, static_cast<jint>(CSSNodeLayoutGetDirection(node)));
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}
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static void _jniTransferLayoutOutputsRecursive(CSSNodeRef root) {
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auto javaNode = adopt_local(
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Environment::current()->NewLocalRef(reinterpret_cast<jweak>(CSSNodeGetContext(root))));
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static auto widthField = javaNode->getClass()->getField<jfloat>("mWidth");
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static auto heightField = javaNode->getClass()->getField<jfloat>("mHeight");
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static auto leftField = javaNode->getClass()->getField<jfloat>("mLeft");
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static auto topField = javaNode->getClass()->getField<jfloat>("mTop");
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javaNode->setFieldValue(widthField, CSSNodeLayoutGetWidth(root));
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javaNode->setFieldValue(heightField, CSSNodeLayoutGetHeight(root));
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javaNode->setFieldValue(leftField, CSSNodeLayoutGetLeft(root));
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javaNode->setFieldValue(topField, CSSNodeLayoutGetTop(root));
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_jniTransferLayoutDirection(root, javaNode);
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for (uint32_t i = 0; i < CSSNodeChildCount(root); i++) {
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_jniTransferLayoutOutputsRecursive(CSSNodeGetChild(root, i));
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}
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}
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static void _jniPrint(CSSNodeRef node) {
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auto obj = adopt_local(
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Environment::current()->NewLocalRef(reinterpret_cast<jweak>(CSSNodeGetContext(node))));
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cout << obj->toString() << endl;
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}
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static CSSSize _jniMeasureFunc(CSSNodeRef node,
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float width,
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CSSMeasureMode widthMode,
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float height,
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CSSMeasureMode heightMode) {
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auto obj = adopt_local(
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Environment::current()->NewLocalRef(reinterpret_cast<jweak>(CSSNodeGetContext(node))));
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static auto measureFunc = findClassLocal("com/facebook/csslayout/CSSNode")
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->getMethod<jlong(jfloat, jint, jfloat, jint)>("measure");
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_jniTransferLayoutDirection(node, obj);
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const auto measureResult = measureFunc(obj, width, widthMode, height, heightMode);
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static_assert(sizeof(measureResult) == 8,
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"Expected measureResult to be 8 bytes, or two 32 bit ints");
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const float measuredWidth = static_cast<float>(0xFFFFFFFF & (measureResult >> 32));
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const float measuredHeight = static_cast<float>(0xFFFFFFFF & measureResult);
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return CSSSize{measuredWidth, measuredHeight};
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}
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static global_ref<jobject> *jLogger;
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static int _jniLog(CSSLogLevel level, const char *format, va_list args) {
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char buffer[256];
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int result = vsnprintf(buffer, sizeof(buffer), format, args);
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static auto logFunc =
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findClassLocal("com/facebook/csslayout/CSSLogger")->getMethod<void(jint, jstring)>("log");
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logFunc(jLogger->get(), static_cast<jint>(level), Environment::current()->NewStringUTF(buffer));
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return result;
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}
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static inline CSSNodeRef _jlong2CSSNodeRef(jlong addr) {
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return reinterpret_cast<CSSNodeRef>(static_cast<intptr_t>(addr));
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}
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void jni_CSSLayoutSetLogger(alias_ref<jclass> clazz, alias_ref<jobject> logger) {
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if (jLogger) {
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jLogger->releaseAlias();
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delete jLogger;
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}
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if (logger) {
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jLogger = new global_ref<jobject>(make_global(logger));
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CSSLayoutSetLogger(_jniLog);
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} else {
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jLogger = NULL;
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CSSLayoutSetLogger(NULL);
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}
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}
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void jni_CSSLog(alias_ref<jclass> clazz, jint level, jstring message) {
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const char *nMessage = Environment::current()->GetStringUTFChars(message, 0);
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CSSLog(static_cast<CSSLogLevel>(level), "%s", nMessage);
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Environment::current()->ReleaseStringUTFChars(message, nMessage);
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}
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jint jni_CSSNodeGetInstanceCount(alias_ref<jclass> clazz) {
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return CSSNodeGetInstanceCount();
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}
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jlong jni_CSSNodeNew(alias_ref<jobject> thiz) {
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const CSSNodeRef node = CSSNodeNew();
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CSSNodeSetContext(node, Environment::current()->NewWeakGlobalRef(thiz.get()));
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CSSNodeSetPrintFunc(node, _jniPrint);
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return reinterpret_cast<jlong>(node);
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}
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void jni_CSSNodeFree(alias_ref<jobject> thiz, jlong nativePointer) {
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Environment::current()->DeleteWeakGlobalRef(
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reinterpret_cast<jweak>(CSSNodeGetContext(_jlong2CSSNodeRef(nativePointer))));
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CSSNodeFree(_jlong2CSSNodeRef(nativePointer));
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}
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void jni_CSSNodeReset(alias_ref<jobject> thiz, jlong nativePointer) {
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const CSSNodeRef node = _jlong2CSSNodeRef(nativePointer);
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void *context = CSSNodeGetContext(node);
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CSSNodeReset(node);
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CSSNodeSetContext(node, context);
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CSSNodeSetPrintFunc(node, _jniPrint);
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}
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void jni_CSSNodeInsertChild(alias_ref<jobject>,
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jlong nativePointer,
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jlong childPointer,
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jint index) {
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CSSNodeInsertChild(_jlong2CSSNodeRef(nativePointer), _jlong2CSSNodeRef(childPointer), index);
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}
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void jni_CSSNodeRemoveChild(alias_ref<jobject>, jlong nativePointer, jlong childPointer) {
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CSSNodeRemoveChild(_jlong2CSSNodeRef(nativePointer), _jlong2CSSNodeRef(childPointer));
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}
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void jni_CSSNodeCalculateLayout(alias_ref<jobject>, jlong nativePointer) {
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const CSSNodeRef root = _jlong2CSSNodeRef(nativePointer);
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CSSNodeCalculateLayout(root,
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CSSUndefined,
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CSSUndefined,
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CSSNodeStyleGetDirection(_jlong2CSSNodeRef(nativePointer)));
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_jniTransferLayoutOutputsRecursive(root);
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}
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void jni_CSSNodeMarkDirty(alias_ref<jobject>, jlong nativePointer) {
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CSSNodeMarkDirty(_jlong2CSSNodeRef(nativePointer));
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}
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jboolean jni_CSSNodeIsDirty(alias_ref<jobject>, jlong nativePointer) {
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return (jboolean) CSSNodeIsDirty(_jlong2CSSNodeRef(nativePointer));
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}
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void jni_CSSNodeSetHasMeasureFunc(alias_ref<jobject>,
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jlong nativePointer,
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jboolean hasMeasureFunc) {
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CSSNodeSetMeasureFunc(_jlong2CSSNodeRef(nativePointer), hasMeasureFunc ? _jniMeasureFunc : NULL);
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}
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jboolean jni_CSSNodeHasNewLayout(alias_ref<jobject>, jlong nativePointer) {
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return (jboolean) CSSNodeGetHasNewLayout(_jlong2CSSNodeRef(nativePointer));
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}
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void jni_CSSNodeMarkLayoutSeen(alias_ref<jobject>, jlong nativePointer) {
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CSSNodeSetHasNewLayout(_jlong2CSSNodeRef(nativePointer), false);
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}
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#define CSS_NODE_JNI_STYLE_PROP(javatype, type, name) \
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javatype jni_CSSNodeStyleGet##name(alias_ref<jobject>, jlong nativePointer) { \
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return (javatype) CSSNodeStyleGet##name(_jlong2CSSNodeRef(nativePointer)); \
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} \
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\
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void jni_CSSNodeStyleSet##name(alias_ref<jobject>, jlong nativePointer, javatype value) { \
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CSSNodeStyleSet##name(_jlong2CSSNodeRef(nativePointer), static_cast<type>(value)); \
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}
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#define CSS_NODE_JNI_STYLE_EDGE_PROP(javatype, type, name) \
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javatype jni_CSSNodeStyleGet##name(alias_ref<jobject>, jlong nativePointer, jint edge) { \
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return (javatype) CSSNodeStyleGet##name(_jlong2CSSNodeRef(nativePointer), \
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static_cast<CSSEdge>(edge)); \
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} \
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\
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void jni_CSSNodeStyleSet##name(alias_ref<jobject>, \
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jlong nativePointer, \
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jint edge, \
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javatype value) { \
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CSSNodeStyleSet##name(_jlong2CSSNodeRef(nativePointer), \
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static_cast<CSSEdge>(edge), \
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static_cast<type>(value)); \
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}
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CSS_NODE_JNI_STYLE_PROP(jint, CSSDirection, Direction);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSFlexDirection, FlexDirection);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSJustify, JustifyContent);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSAlign, AlignItems);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSAlign, AlignSelf);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSAlign, AlignContent);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSPositionType, PositionType);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSWrapType, FlexWrap);
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CSS_NODE_JNI_STYLE_PROP(jint, CSSOverflow, Overflow);
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void jni_CSSNodeStyleSetFlex(alias_ref<jobject>, jlong nativePointer, jfloat value) {
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CSSNodeStyleSetFlex(_jlong2CSSNodeRef(nativePointer), static_cast<float>(value));
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}
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, FlexGrow);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, FlexShrink);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, FlexBasis);
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CSS_NODE_JNI_STYLE_EDGE_PROP(jfloat, float, Position);
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CSS_NODE_JNI_STYLE_EDGE_PROP(jfloat, float, Margin);
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CSS_NODE_JNI_STYLE_EDGE_PROP(jfloat, float, Padding);
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CSS_NODE_JNI_STYLE_EDGE_PROP(jfloat, float, Border);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, Width);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, MinWidth);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, MaxWidth);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, Height);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, MinHeight);
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CSS_NODE_JNI_STYLE_PROP(jfloat, float, MaxHeight);
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#define CSSMakeNativeMethod(name) makeNativeMethod(#name, name)
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jint JNI_OnLoad(JavaVM *vm, void *) {
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return initialize(vm, [] {
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registerNatives("com/facebook/csslayout/CSSNode",
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{
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CSSMakeNativeMethod(jni_CSSNodeNew),
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CSSMakeNativeMethod(jni_CSSNodeFree),
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CSSMakeNativeMethod(jni_CSSNodeReset),
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CSSMakeNativeMethod(jni_CSSNodeInsertChild),
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CSSMakeNativeMethod(jni_CSSNodeRemoveChild),
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CSSMakeNativeMethod(jni_CSSNodeCalculateLayout),
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CSSMakeNativeMethod(jni_CSSNodeHasNewLayout),
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CSSMakeNativeMethod(jni_CSSNodeMarkDirty),
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CSSMakeNativeMethod(jni_CSSNodeIsDirty),
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CSSMakeNativeMethod(jni_CSSNodeMarkLayoutSeen),
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CSSMakeNativeMethod(jni_CSSNodeSetHasMeasureFunc),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetDirection),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetDirection),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetFlexDirection),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetFlexDirection),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetJustifyContent),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetJustifyContent),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetAlignItems),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetAlignItems),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetAlignSelf),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetAlignSelf),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetAlignContent),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetAlignContent),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetPositionType),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetPositionType),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetFlexWrap),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetOverflow),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetOverflow),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetFlex),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetFlexGrow),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetFlexGrow),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetFlexShrink),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetFlexShrink),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetFlexBasis),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetFlexBasis),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetMargin),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetMargin),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetPadding),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetPadding),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetBorder),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetBorder),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetPosition),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetPosition),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetWidth),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetWidth),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetHeight),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetHeight),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetMinWidth),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetMinWidth),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetMinHeight),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetMinHeight),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetMaxWidth),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetMaxWidth),
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CSSMakeNativeMethod(jni_CSSNodeStyleGetMaxHeight),
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CSSMakeNativeMethod(jni_CSSNodeStyleSetMaxHeight),
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CSSMakeNativeMethod(jni_CSSNodeGetInstanceCount),
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CSSMakeNativeMethod(jni_CSSLayoutSetLogger),
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CSSMakeNativeMethod(jni_CSSLog),
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});
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});
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}
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