Import "Fix percent absolute position and size calcuate different with web" behind experimental feature (#1028) (#1201)

Summary:
Fixes facebook/yoga#850

facebook/yoga#850 describes a conformance issue where positioning of an absolute child using percentages is not calculated against the correct box size.

This takes the fix for that in facebook/yoga#1028, regenerates tests, and fixes tests so that the experimental feature can be enabled. Goal is to run this as an experiment internally to see if we can enable by default.

Changelog:
[Internal]

X-link: facebook/yoga#1201

Reviewed By: yungsters

Differential Revision: D42282358

Pulled By: NickGerleman

fbshipit-source-id: 57c0dd9b0f1c47cb9335ff6e13d44b4646e5fa58

Author: NickGerleman

ReactAndroid/src/main/java/com/facebook/yoga/YogaExperimentalFeature.java

@@ -10,7 +10,9 @@
 package com.facebook.yoga;
 
 public enum YogaExperimentalFeature {
-  WEB_FLEX_BASIS(0);
+  WEB_FLEX_BASIS(0),
+  ABSOLUTE_PERCENTAGE_AGAINST_PADDING_EDGE(1),
+  FIX_ABSOLUTE_TRAILING_COLUMN_MARGIN(2);
 
   private final int mIntValue;
 
@@ -25,6 +27,8 @@ public int intValue() {
   public static YogaExperimentalFeature fromInt(int value) {
     switch (value) {
       case 0: return WEB_FLEX_BASIS;
+      case 1: return ABSOLUTE_PERCENTAGE_AGAINST_PADDING_EDGE;
+      case 2: return FIX_ABSOLUTE_TRAILING_COLUMN_MARGIN;
       default: throw new IllegalArgumentException("Unknown enum value: " + value);
     }
   }

ReactCommon/yoga/yoga/YGEnums.cpp

@@ -91,6 +91,10 @@ const char* YGExperimentalFeatureToString(const YGExperimentalFeature value) {
   switch (value) {
     case YGExperimentalFeatureWebFlexBasis:
       return "web-flex-basis";
+    case YGExperimentalFeatureAbsolutePercentageAgainstPaddingEdge:
+      return "absolute-percentage-against-padding-edge";
+    case YGExperimentalFeatureFixAbsoluteTrailingColumnMargin:
+      return "fix-absolute-trailing-column-margin";
   }
   return "unknown";
 }

ReactCommon/yoga/yoga/YGEnums.h

@@ -56,7 +56,9 @@ YG_ENUM_SEQ_DECL(
 
 YG_ENUM_SEQ_DECL(
     YGExperimentalFeature,
-    YGExperimentalFeatureWebFlexBasis)
+    YGExperimentalFeatureWebFlexBasis,
+    YGExperimentalFeatureAbsolutePercentageAgainstPaddingEdge,
+    YGExperimentalFeatureFixAbsoluteTrailingColumnMargin)
 
 YG_ENUM_SEQ_DECL(
     YGFlexDirection,

ReactCommon/yoga/yoga/Yoga.cpp

@@ -1595,13 +1595,21 @@ static void YGNodeAbsoluteLayoutChild(
       depth,
       generationCount);
 
+  auto trailingMarginOuterSize =
+      YGConfigIsExperimentalFeatureEnabled(
+          node->getConfig(),
+          YGExperimentalFeatureFixAbsoluteTrailingColumnMargin)
+      ? isMainAxisRow ? height : width
+      : width;
+
   if (child->isTrailingPosDefined(mainAxis) &&
       !child->isLeadingPositionDefined(mainAxis)) {
     child->setLayoutPosition(
         node->getLayout().measuredDimensions[dim[mainAxis]] -
             child->getLayout().measuredDimensions[dim[mainAxis]] -
             node->getTrailingBorder(mainAxis) -
-            child->getTrailingMargin(mainAxis, width).unwrap() -
+            child->getTrailingMargin(mainAxis, trailingMarginOuterSize)
+                .unwrap() -
             child->getTrailingPosition(mainAxis, isMainAxisRow ? width : height)
                 .unwrap(),
         leading[mainAxis]);
@@ -1620,6 +1628,22 @@ static void YGNodeAbsoluteLayoutChild(
         (node->getLayout().measuredDimensions[dim[mainAxis]] -
          child->getLayout().measuredDimensions[dim[mainAxis]]),
         leading[mainAxis]);
+  } else if (
+      YGConfigIsExperimentalFeatureEnabled(
+          node->getConfig(),
+          YGExperimentalFeatureAbsolutePercentageAgainstPaddingEdge) &&
+      child->isLeadingPositionDefined(mainAxis)) {
+    child->setLayoutPosition(
+        child->getLeadingPosition(
+                 mainAxis, node->getLayout().measuredDimensions[dim[mainAxis]])
+                .unwrap() +
+            node->getLeadingBorder(mainAxis) +
+            child
+                ->getLeadingMargin(
+                    mainAxis,
+                    node->getLayout().measuredDimensions[dim[mainAxis]])
+                .unwrap(),
+        leading[mainAxis]);
   }
 
   if (child->isTrailingPosDefined(crossAxis) &&
@@ -1628,7 +1652,8 @@ static void YGNodeAbsoluteLayoutChild(
         node->getLayout().measuredDimensions[dim[crossAxis]] -
             child->getLayout().measuredDimensions[dim[crossAxis]] -
             node->getTrailingBorder(crossAxis) -
-            child->getTrailingMargin(crossAxis, width).unwrap() -
+            child->getTrailingMargin(crossAxis, trailingMarginOuterSize)
+                .unwrap() -
             child
                 ->getTrailingPosition(crossAxis, isMainAxisRow ? height : width)
                 .unwrap(),
@@ -1650,6 +1675,23 @@ static void YGNodeAbsoluteLayoutChild(
         (node->getLayout().measuredDimensions[dim[crossAxis]] -
          child->getLayout().measuredDimensions[dim[crossAxis]]),
         leading[crossAxis]);
+  } else if (
+      YGConfigIsExperimentalFeatureEnabled(
+          node->getConfig(),
+          YGExperimentalFeatureAbsolutePercentageAgainstPaddingEdge) &&
+      child->isLeadingPositionDefined(crossAxis)) {
+    child->setLayoutPosition(
+        child->getLeadingPosition(
+                 crossAxis,
+                 node->getLayout().measuredDimensions[dim[crossAxis]])
+                .unwrap() +
+            node->getLeadingBorder(crossAxis) +
+            child
+                ->getLeadingMargin(
+                    crossAxis,
+                    node->getLayout().measuredDimensions[dim[crossAxis]])
+                .unwrap(),
+        leading[crossAxis]);
   }
 }
 
@@ -3569,9 +3611,17 @@ static void YGNodelayoutImpl(
       YGNodeAbsoluteLayoutChild(
           node,
           child,
-          availableInnerWidth,
+          YGConfigIsExperimentalFeatureEnabled(
+              node->getConfig(),
+              YGExperimentalFeatureAbsolutePercentageAgainstPaddingEdge)
+              ? node->getLayout().measuredDimensions[YGDimensionWidth]
+              : availableInnerWidth,
           isMainAxisRow ? measureModeMainDim : measureModeCrossDim,
-          availableInnerHeight,
+          YGConfigIsExperimentalFeatureEnabled(
+              node->getConfig(),
+              YGExperimentalFeatureAbsolutePercentageAgainstPaddingEdge)
+              ? node->getLayout().measuredDimensions[YGDimensionHeight]
+              : availableInnerHeight,
           direction,
           config,
           layoutMarkerData,