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Implement java bindings for custom baseline function

Differential Revision: D4392516

fbshipit-source-id: 39cf6066f8e5982268becd87e54c9ab51fbf7a90
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emilsjolander authored and facebook-github-bot committed Jan 10, 2017
1 parent 64f394a commit b5f382c0e8ffae350bda552d8e3fdeb1e99c7f14
@@ -0,0 +1,22 @@
/**
* Copyright (c) 2014-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
package com.facebook.yoga;
import com.facebook.proguard.annotations.DoNotStrip;
@DoNotStrip
public interface YogaBaselineFunction {
/**
* Return the baseline of the node in pixels. When no baseline function is set the baseline
* default to the computed height of the node.
*/
@DoNotStrip
float baseline(YogaNodeAPI node, float width, float height);
}
@@ -52,6 +52,7 @@ public static boolean isExperimentalFeatureEnabled(YogaExperimentalFeature featu
private YogaNode mParent;
private List<YogaNode> mChildren;
private YogaMeasureFunction mMeasureFunction;
private YogaBaselineFunction mBaselineFunction;
private long mNativePointer;
private Object mData;
@@ -623,6 +624,18 @@ public final long measure(float width, int widthMode, float height, int heightMo
YogaMeasureMode.values()[heightMode]);
}
private native void jni_YGNodeSetHasBaselineFunc(long nativePointer, boolean hasMeasureFunc);
@Override
public void setBaselineFunction(YogaBaselineFunction baselineFunction) {
mBaselineFunction = baselineFunction;
jni_YGNodeSetHasBaselineFunc(mNativePointer, baselineFunction != null);
}
@DoNotStrip
public final float baseline(float width, float height) {
return mBaselineFunction.baseline(this, width, height);
}
@Override
public boolean isMeasureDefined() {
return mMeasureFunction != null;
@@ -18,6 +18,7 @@
YogaNodeType getParent();
int indexOf(YogaNodeType child);
void setMeasureFunction(YogaMeasureFunction measureFunction);
void setBaselineFunction(YogaBaselineFunction measureFunction);
boolean isMeasureDefined();
void calculateLayout();
boolean isDirty();
@@ -63,6 +63,14 @@ static void YGPrint(YGNodeRef node) {
}
}
static float YGJNIBaselineFunc(YGNodeRef node, float width, float height) {
if (auto obj = YGNodeJobject(node)->lockLocal()) {
return findClassLocal("com/facebook/yoga/YogaNode")->getMethod<jfloat(jfloat, jfloat)>("baseline")(obj, width, height);
} else {
return height;
}
}
static YGSize YGJNIMeasureFunc(YGNodeRef node,
float width,
YGMeasureMode widthMode,
@@ -203,6 +211,10 @@ void jni_YGNodeSetHasMeasureFunc(alias_ref<jobject>, jlong nativePointer, jboole
YGNodeSetMeasureFunc(_jlong2YGNodeRef(nativePointer), hasMeasureFunc ? YGJNIMeasureFunc : NULL);
}
void jni_YGNodeSetHasBaselineFunc(alias_ref<jobject>, jlong nativePointer, jboolean hasBaselineFunc) {
YGNodeSetBaselineFunc(_jlong2YGNodeRef(nativePointer), hasBaselineFunc ? YGJNIBaselineFunc : NULL);
}
jboolean jni_YGNodeHasNewLayout(alias_ref<jobject>, jlong nativePointer) {
return (jboolean) YGNodeGetHasNewLayout(_jlong2YGNodeRef(nativePointer));
}
@@ -332,6 +344,7 @@ jint JNI_OnLoad(JavaVM *vm, void *) {
YGMakeNativeMethod(jni_YGNodeIsDirty),
YGMakeNativeMethod(jni_YGNodeMarkLayoutSeen),
YGMakeNativeMethod(jni_YGNodeSetHasMeasureFunc),
YGMakeNativeMethod(jni_YGNodeSetHasBaselineFunc),
YGMakeNativeMethod(jni_YGNodeCopyStyle),
YGMakeNativeMethod(jni_YGNodeStyleGetDirection),
YGMakeNativeMethod(jni_YGNodeStyleSetDirection),

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