Fabric: borderWidths field was removed from ViewProps

Summary:
@public
Apperently, we don't need to store and parse this because we are already doing this for `yogaStyle` field.

Reviewed By: sahrens

Differential Revision: D9649549

fbshipit-source-id: a84a5518674f4c2d574a060cdbebb9562121f5f4

Author: shergin

React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm

@@ -158,7 +158,6 @@ - (void)updateProps:(SharedProps)props
 
   // `border`
   if (
-    oldViewProps.borderWidths != newViewProps.borderWidths ||
     oldViewProps.borderStyles != newViewProps.borderStyles ||
     oldViewProps.borderRadii != newViewProps.borderRadii ||
     oldViewProps.borderColors != newViewProps.borderColors

ReactCommon/fabric/components/view/ViewProps.cpp

@@ -25,7 +25,6 @@ ViewProps::ViewProps(const ViewProps &sourceProps, const RawProps &rawProps):
   opacity(convertRawProp(rawProps, "opacity", sourceProps.opacity, (Float)1.0)),
   foregroundColor(convertRawProp(rawProps, "foregroundColor", sourceProps.foregroundColor)),
   backgroundColor(convertRawProp(rawProps, "backgroundColor", sourceProps.backgroundColor)),
-  borderWidths(convertRawProp(rawProps, "border", "Width", sourceProps.borderWidths)),
   borderRadii(convertRawProp(rawProps, "border", "Radius", sourceProps.borderRadii)),
   borderColors(convertRawProp(rawProps, "border", "Color", sourceProps.borderColors)),
   borderStyles(convertRawProp(rawProps, "border", "Style", sourceProps.borderStyles)),
@@ -44,6 +43,18 @@ ViewProps::ViewProps(const ViewProps &sourceProps, const RawProps &rawProps):
 #pragma mark - Convenience Methods
 
 BorderMetrics ViewProps::resolveBorderMetrics(bool isRTL) const {
+  auto borderWidths = CascadedBorderWidths {
+    .left = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeLeft]),
+    .top = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeTop]),
+    .right = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeRight]),
+    .bottom = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeBottom]),
+    .start = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeStart]),
+    .end = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeEnd]),
+    .horizontal = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeHorizontal]),
+    .vertical = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeVertical]),
+    .all = optionalFloatFromYogaValue(yogaStyle.border[YGEdgeAll])
+  };
+
   return {
     .borderColors = borderColors.resolve(isRTL, {}),
     .borderWidths = borderWidths.resolve(isRTL, 0),

ReactCommon/fabric/components/view/ViewProps.h

@@ -39,7 +39,6 @@ class ViewProps:
   const SharedColor backgroundColor {};
 
   // Borders
-  const CascadedBorderWidths borderWidths {};
   const CascadedBorderRadii borderRadii {};
   const CascadedBorderColors borderColors {};
   const CascadedBorderStyles borderStyles {};

ReactCommon/fabric/components/view/conversions.h

@@ -58,6 +58,19 @@ inline YGValue yogaStyleValueFromFloat(const Float &value) {
   return {(float)value, YGUnitPoint};
 }
 
+inline folly::Optional<Float> optionalFloatFromYogaValue(const YGValue &value, folly::Optional<Float> base = {}) {
+  switch (value.unit) {
+    case YGUnitUndefined:
+      return {};
+    case YGUnitPoint:
+      return fabricFloatFromYogaFloat(value.value);
+    case YGUnitPercent:
+      return base.has_value() ? folly::Optional<Float>(base.value() * fabricFloatFromYogaFloat(value.value)) : folly::Optional<Float>();
+    case YGUnitAuto:
+      return {};
+  }
+}
+
 inline LayoutMetrics layoutMetricsFromYogaNode(YGNode &yogaNode) {
   LayoutMetrics layoutMetrics;