Allow decimal measurements on java

Summary: Preserve floating point values when passing them across the JNI bridge.

Differential Revision: D4366605

fbshipit-source-id: 0b94ee87a03a6ed918360dd9998930e780fc865d

.gitignore

@@ -5,6 +5,48 @@
 /.buckconfig.local
 /.buckd
 /gentest/test.html
+.buckversion
 
 # Visual studio code
 .vscode
+
+# Xcode
+## Build generated
+build/
+DerivedData/
+
+## Various settings
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
+
+## Other
+*.moved-aside
+*.xcuserstate
+
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+Pods/
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build

.hgignore

@@ -5,6 +5,48 @@
 /.buckconfig.local
 /.buckd
 /gentest/test.html
+.buckversion
 
 # Visual studio code
 .vscode
+
+# Xcode
+## Build generated
+build/
+DerivedData/
+
+## Various settings
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
+
+## Other
+*.moved-aside
+*.xcuserstate
+
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+Pods/
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build

BUCK

@@ -7,14 +7,6 @@
 
 include_defs('//YOGA_DEFS')
 
-BASE_COMPILER_FLAGS = [
-  '-fno-omit-frame-pointer',
-  '-fexceptions',
-  '-Wall',
-  '-Werror',
-  '-O3',
-]
-
 GMOCK_OVERRIDE_FLAGS = [
   # gmock does not mark mocked methods as override, ignore the warnings in tests
   '-Wno-inconsistent-missing-override',

README.md

@@ -4,6 +4,8 @@
 Yoga builds with [buck](https://buckbuild.com). Make sure you install buck before contributing to Yoga. Yoga's main implementation is in C, with bindings to supported languages and frameworks. When making changes to Yoga please ensure the changes are also propagated to these bindings when applicable.
 
 ## Testing
+For testing we rely on [gtest](https://github.com/google/googletest) as a submodule. After cloning Yoga run `git submodule init` followed by `git submodule update`.
+
 For any changes you make you should ensure that all the tests are passing. In case you make any fixes or additions to the library please also add tests for that change to ensure we don't break anything in the future. Tests are located in the `tests` directory. Run the tests by executing `buck test //:yoga`.
 
 Instead of manually writing a test which ensures parity with web implementations of Flexbox you can run `gentest/gentest.rb` to generated a test for you. You can write html which you want to verify in Yoga, in `gentest/fixtures` folder, such as the following.

YOGA_DEFS

@@ -17,6 +17,14 @@ CXX_LIBRARY_WHITELIST = [
   '//java:jni',
 ]
 
+BASE_COMPILER_FLAGS = [
+  '-fno-omit-frame-pointer',
+  '-fexceptions',
+  '-Wall',
+  '-Werror',
+  '-O3',
+]
+
 def yoga_dep(dep):
   return '//' + dep
 

YogaKit/Tests/YogaKitTests.m

@@ -9,7 +9,7 @@
 
 #import <XCTest/XCTest.h>
 
-#import "UIView+Yoga.h"
+#import <YogaKit/UIView+Yoga.h>
 
 @interface YogaKitTests : XCTestCase
 @end
@@ -268,4 +268,79 @@
   }
 }
 
+- (void)testyg_isLeafFlag
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+  XCTAssertTrue(view.yg_isLeaf);
+
+  for (int i=0; i<10; i++) {
+    UIView *subview = [[UIView alloc] initWithFrame:CGRectZero];
+    [view addSubview:subview];
+  }
+  XCTAssertTrue(view.yg_isLeaf);
+
+  [view yg_setUsesYoga:YES];
+  [view yg_setWidth:50.0];
+  XCTAssertTrue(view.yg_isLeaf);
+
+  UIView *const subview = view.subviews[0];
+  [subview yg_setUsesYoga:YES];
+  [subview yg_setWidth:50.0];
+  XCTAssertFalse(view.yg_isLeaf);
+}
+
+- (void)testThatWeCorrectlyAttachNestedViews
+{
+    UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 50)];
+    [container yg_setUsesYoga:YES];
+    [container yg_setFlexDirection:YGFlexDirectionColumn];
+
+    UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+    [subview1 yg_setUsesYoga:YES];
+    [subview1 yg_setWidth:100];
+    [subview1 yg_setFlexGrow:1];
+    [subview1 yg_setFlexDirection:YGFlexDirectionColumn];
+    [container addSubview:subview1];
+
+    UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+    [subview2 yg_setUsesYoga:YES];
+    [subview2 yg_setWidth:150];
+    [subview2 yg_setFlexGrow:1];
+    [subview2 yg_setFlexDirection:YGFlexDirectionColumn];
+    [container addSubview:subview2];
+
+    for (UIView *view in @[subview1, subview2]) {
+        UIView *someView = [[UIView alloc] initWithFrame:CGRectZero];
+        [someView yg_setUsesYoga:YES];
+        [someView yg_setFlexGrow:1];
+        [view addSubview:someView];
+    }
+    [container yg_applyLayout];
+
+    // Add the same amount of new views, reapply layout.
+    for (UIView *view in @[subview1, subview2]) {
+        UIView *someView = [[UIView alloc] initWithFrame:CGRectZero];
+        [someView yg_setUsesYoga:YES];
+        [someView yg_setFlexGrow:1];
+        [view addSubview:someView];
+    }
+    [container yg_applyLayout];
+
+    XCTAssertTrue(CGSizeEqualToSize(CGSizeMake(100, 25), subview1.bounds.size), @"Actual size is %@", NSStringFromCGSize(subview1.bounds.size));
+    for (UIView *subview in subview1.subviews) {
+        const CGSize subviewSize = subview.bounds.size;
+        XCTAssertFalse(CGSizeEqualToSize(CGSizeZero, subviewSize));
+        XCTAssertFalse(isnan(subviewSize.height));
+        XCTAssertFalse(isnan(subviewSize.width));
+    }
+
+    XCTAssertTrue(CGSizeEqualToSize(CGSizeMake(150, 25), subview2.bounds.size), @"Actual size is %@", NSStringFromCGSize(subview2.bounds.size));
+    for (UIView *subview in subview2.subviews) {
+        const CGSize subviewSize = subview.bounds.size;
+        XCTAssertFalse(CGSizeEqualToSize(CGSizeZero, subview.bounds.size));
+        XCTAssertFalse(isnan(subviewSize.height));
+        XCTAssertFalse(isnan(subviewSize.width));
+    }
+}
+
 @end

YogaKit/UIView+Yoga.h

@@ -55,7 +55,7 @@
 - (YGDirection)yg_resolvedDirection;
 
 /**
- Perform a layout calculation and update the frames of the views in the hierarchy with th results
+ Perform a layout calculation and update the frames of the views in the hierarchy with the results
  */
 - (void)yg_applyLayout;
 
@@ -69,4 +69,9 @@
  */
 - (NSUInteger)yg_numberOfChildren;
 
+/**
+ Return a BOOL indiciating whether or not we this node contains any subviews that are included in Yoga's layout.
+ */
+- (BOOL)yg_isLeaf;
+
 @end

YogaKit/UIView+Yoga.m

@@ -53,7 +53,21 @@
 
 - (NSUInteger)yg_numberOfChildren
 {
-  return YGNodeChildCount([self ygNode]);
+  return YGNodeGetChildCount([self ygNode]);
+}
+
+- (BOOL)yg_isLeaf
+{
+  NSAssert([NSThread isMainThread], @"This method must be called on the main thread.");
+  if ([self yg_usesYoga]) {
+      for (UIView *subview in self.subviews) {
+          if ([subview yg_usesYoga] && [subview yg_includeInLayout]) {
+              return NO;
+          }
+      }
+  }
+
+  return YES;
 }
 
 #pragma mark - Setters
@@ -276,17 +290,32 @@ static CGFloat YGSanitizeMeasurement(
   return result;
 }
 
-static void YGAttachNodesFromViewHierachy(UIView *view) {
-  YGNodeRef node = [view ygNode];
+static BOOL YGNodeHasExactSameChildren(const YGNodeRef node, NSArray<UIView *> *subviews)
+{
+  if (YGNodeGetChildCount(node) != subviews.count) {
+    return NO;
+  }
+
+  for (int i=0; i<subviews.count; i++) {
+    if (YGNodeGetChild(node, i) != subviews[i].ygNode) {
+      return NO;
+    }
+  }
+
+  return YES;
+}
+
+static void YGAttachNodesFromViewHierachy(UIView *const view)
+{
+  const YGNodeRef node = [view ygNode];
 
   // Only leaf nodes should have a measure function
-  if (![view yg_usesYoga] || view.subviews.count == 0) {
+  if (view.yg_isLeaf) {
     YGNodeSetMeasureFunc(node, YGMeasureView);
     YGRemoveAllChildren(node);
   } else {
     YGNodeSetMeasureFunc(node, NULL);
 
-    // Create a list of all the subviews that we are going to use for layout.
     NSMutableArray<UIView *> *subviewsToInclude = [[NSMutableArray alloc] initWithCapacity:view.subviews.count];
     for (UIView *subview in view.subviews) {
       if ([subview yg_includeInLayout]) {
@@ -294,26 +323,15 @@ static void YGAttachNodesFromViewHierachy(UIView *view) {
       }
     }
 
-    BOOL shouldReconstructChildList = NO;
-    if (YGNodeChildCount(node) != subviewsToInclude.count) {
-      shouldReconstructChildList = YES;
-    } else {
-      for (int i = 0; i < subviewsToInclude.count; i++) {
-        if (YGNodeGetChild(node, i) != [subviewsToInclude[i] ygNode]) {
-          shouldReconstructChildList = YES;
-          break;
+    if (!YGNodeHasExactSameChildren(node, subviewsToInclude)) {
+        YGRemoveAllChildren(node);
+        for (int i=0; i<subviewsToInclude.count; i++) {
+            YGNodeInsertChild(node, [subviewsToInclude[i] ygNode], i);
         }
-      }
     }
 
-    if (shouldReconstructChildList) {
-      YGRemoveAllChildren(node);
-
-      for (int i = 0 ; i < subviewsToInclude.count; i++) {
-        UIView *const subview = subviewsToInclude[i];
-        YGNodeInsertChild(node, [subview ygNode], i);
+    for (UIView *const subview in subviewsToInclude) {
         YGAttachNodesFromViewHierachy(subview);
-      }
     }
   }
 }
@@ -324,8 +342,8 @@ static void YGRemoveAllChildren(const YGNodeRef node)
       return;
   }
 
-  while (YGNodeChildCount(node) > 0) {
-    YGNodeRemoveChild(node, YGNodeGetChild(node, YGNodeChildCount(node) - 1));
+  while (YGNodeGetChildCount(node) > 0) {
+    YGNodeRemoveChild(node, YGNodeGetChild(node, YGNodeGetChildCount(node) - 1));
   }
 }
 
@@ -340,7 +358,8 @@ static CGFloat YGRoundPixelValue(CGFloat value)
   return round(value * scale) / scale;
 }
 
-static void YGApplyLayoutToViewHierarchy(UIView *view) {
+static void YGApplyLayoutToViewHierarchy(UIView *view)
+{
   NSCAssert([NSThread isMainThread], @"Framesetting should only be done on the main thread.");
   if (![view yg_includeInLayout]) {
      return;
@@ -368,9 +387,8 @@ static void YGApplyLayoutToViewHierarchy(UIView *view) {
     },
   };
 
-  const BOOL isLeaf = ![view yg_usesYoga] || view.subviews.count == 0;
-  if (!isLeaf) {
-    for (NSUInteger i = 0; i < view.subviews.count; i++) {
+  if (!view.yg_isLeaf) {
+    for (NSUInteger i=0; i<view.subviews.count; i++) {
       YGApplyLayoutToViewHierarchy(view.subviews[i]);
     }
   }

YogaKit/YogaKitSample/YogaKitSample.xcodeproj/xcuserdata/emilsj.xcuserdatad/xcschemes/YogaKitSample.xcscheme

@@ -1,91 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Scheme
-   LastUpgradeVersion = "0810"
-   version = "1.3">
-   <BuildAction
-      parallelizeBuildables = "YES"
-      buildImplicitDependencies = "YES">
-      <BuildActionEntries>
-         <BuildActionEntry
-            buildForTesting = "YES"
-            buildForRunning = "YES"
-            buildForProfiling = "YES"
-            buildForArchiving = "YES"
-            buildForAnalyzing = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "13687D421DF8748300E7C260"
-               BuildableName = "YogaKitSample.app"
-               BlueprintName = "YogaKitSample"
-               ReferencedContainer = "container:YogaKitSample.xcodeproj">
-            </BuildableReference>
-         </BuildActionEntry>
-      </BuildActionEntries>
-   </BuildAction>
-   <TestAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "13687D421DF8748300E7C260"
-            BuildableName = "YogaKitSample.app"
-            BlueprintName = "YogaKitSample"
-            ReferencedContainer = "container:YogaKitSample.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
-   </TestAction>
-   <LaunchAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      launchStyle = "0"
-      useCustomWorkingDirectory = "NO"
-      ignoresPersistentStateOnLaunch = "NO"
-      debugDocumentVersioning = "YES"
-      debugServiceExtension = "internal"
-      allowLocationSimulation = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "13687D421DF8748300E7C260"
-            BuildableName = "YogaKitSample.app"
-            BlueprintName = "YogaKitSample"
-            ReferencedContainer = "container:YogaKitSample.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-      <AdditionalOptions>
-      </AdditionalOptions>
-   </LaunchAction>
-   <ProfileAction
-      buildConfiguration = "Release"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      savedToolIdentifier = ""
-      useCustomWorkingDirectory = "NO"
-      debugDocumentVersioning = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "13687D421DF8748300E7C260"
-            BuildableName = "YogaKitSample.app"
-            BlueprintName = "YogaKitSample"
-            ReferencedContainer = "container:YogaKitSample.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-   </ProfileAction>
-   <AnalyzeAction
-      buildConfiguration = "Debug">
-   </AnalyzeAction>
-   <ArchiveAction
-      buildConfiguration = "Release"
-      revealArchiveInOrganizer = "YES">
-   </ArchiveAction>
-</Scheme>

YogaKit/YogaKitSample/YogaKitSample.xcodeproj/xcuserdata/emilsj.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>YogaKitSample.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-	<key>SuppressBuildableAutocreation</key>
-	<dict>
-		<key>13687D421DF8748300E7C260</key>
-		<dict>
-			<key>primary</key>
-			<true/>
-		</dict>
-	</dict>
-</dict>
-</plist>

csharp/.gitignore

@@ -30,15 +30,14 @@ bld/
 # MSTest test Results
 [Tt]est[Rr]esult*/
 [Bb]uild[Ll]og.*
-csharp/tests/Facebook.Yoga/NUnit-[0-9\.]+/
-csharp/tests/Facebook.Yoga/YogaTest.dll
-csharp/tests/Facebook.Yoga/YogaTest.dll.mdb
-csharp/tests/Facebook.Yoga/libyoga.dylib
-csharp/tests/Facebook.Yoga/libyoga.dylib.dSYM/
 
 # NUNIT
 *.VisualState.xml
 TestResult.xml
+tests/Facebook.Yoga/NUnit-[0-9\.]*/
+tests/Facebook.Yoga/YogaTest.dll
+tests/Facebook.Yoga/YogaTest.dll.mdb
+tests/Facebook.Yoga/libyoga.dylib
 
 # Build Results of an ATL Project
 [Dd]ebugPS/

csharp/.hgignore

@@ -34,11 +34,10 @@ bld/
 # NUNIT
 *.VisualState.xml
 TestResult.xml
-csharp/tests/Facebook.Yoga/NUnit-[0-9\.]+/
-csharp/tests/Facebook.Yoga/YogaTest.dll
-csharp/tests/Facebook.Yoga/YogaTest.dll.mdb
-csharp/tests/Facebook.Yoga/libyoga.dylib
-csharp/tests/Facebook.Yoga/libyoga.dylib.dSYM/
+tests/Facebook.Yoga/NUnit-[0-9\.]*/
+tests/Facebook.Yoga/YogaTest.dll
+tests/Facebook.Yoga/YogaTest.dll.mdb
+tests/Facebook.Yoga/libyoga.dylib
 
 # Build Results of an ATL Project
 [Dd]ebugPS/

csharp/BUCK

@@ -5,6 +5,10 @@
 # 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.
 
+include_defs('//YOGA_DEFS')
+
+COMPILER_FLAGS = BASE_COMPILER_FLAGS + ['-std=c++11']
+
 csharp_library(
   name = 'yogalibnet46',
   dll_name = 'Facebook.Yoga.dll',
@@ -18,3 +22,42 @@ csharp_library(
   framework_ver = 'net45',
   srcs = glob(['**/*.cs']),
 )
+
+cxx_library(
+  name = 'yoganet',
+  soname = 'libyoga.$(ext)',
+  srcs = glob(['Yoga/YGInterop.cpp']),
+  compiler_flags = COMPILER_FLAGS,
+  link_style = 'static',
+  link_whole = True,
+  deps = [yoga_dep(':yoga')],
+  visibility = ['PUBLIC'],
+)
+
+with allow_unsafe_import():
+  import os
+
+if os.path.isdir('/Applications/Xcode.app'):
+  yoganet_ios_srcs = []
+  for arch in ['iphonesimulator-x86_64', 'iphoneos-arm64', 'iphoneos-armv7']:
+    name = 'yoganet-' + arch
+    yoganet_ios_srcs.append(':' + name)
+    genrule(
+      name = name,
+      srcs = [
+        yoga_dep(':yoga#%s,static' % arch),
+        yoga_dep('YogaKit:YogaKit#%s,static' % arch),
+        yoga_dep('csharp:yoganet#%s,static' % arch),
+      ],
+      out = 'libyoga-%s.a' % arch,
+      cmd = 'libtool -static -o $OUT $SRCS',
+      visibility = [yoga_dep('csharp:yoganet-ios')],
+    )
+
+  genrule(
+    name = 'yoganet-ios',
+    srcs = yoganet_ios_srcs,
+    out = 'libyoga.a',
+    cmd = 'lipo $SRCS -create -output $OUT',
+    visibility = ['PUBLIC'],
+  )

csharp/Facebook.Yoga/MeasureFunction.cs

@@ -9,7 +9,7 @@
 
 namespace Facebook.Yoga
 {
-    public delegate long MeasureFunction(
+    public delegate YogaSize MeasureFunction(
         YogaNode node,
         float width,
         YogaMeasureMode widthMode,

csharp/Facebook.Yoga/MeasureOutput.cs

@@ -11,24 +11,9 @@ namespace Facebook.Yoga
 {
     public class MeasureOutput
     {
-        public static long Make(double width, double height)
+        public static YogaSize Make(float width, float height)
         {
-            return Make((int) width, (int) height);
-        }
-
-        public static long Make(int width, int height)
-        {
-            return (long)(((ulong) width) << 32 | ((uint) height));
-        }
-
-        public static int GetWidth(long measureOutput)
-        {
-            return (int) (0xFFFFFFFF & (measureOutput >> 32));
-        }
-
-        public static int GetHeight(long measureOutput)
-        {
-            return (int) (0xFFFFFFFF & measureOutput);
+            return new YogaSize { width = width, height = height};
         }
     }
 }

csharp/Facebook.Yoga/Native.cs

@@ -14,27 +14,46 @@ namespace Facebook.Yoga
 {
     internal static class Native
     {
-#if UNITY_IOS && !UNITY_EDITOR
+#if (UNITY_IOS && !UNITY_EDITOR) || __IOS__
         private const string DllName = "__Internal";
 #else
         private const string DllName = "yoga";
 #endif
 
+        internal class YGNodeHandle : SafeHandle
+        {
+            private YGNodeHandle() : base(IntPtr.Zero, true)
+            {
+            }
+
+            public override bool IsInvalid
+            {
+                get
+                {
+                    return this.handle == IntPtr.Zero;
+                }
+            }
+
+            protected override bool ReleaseHandle()
+            {
+                Native.YGNodeFree(this.handle);
+                GC.KeepAlive(this);
+                return true;
+            }
+        }
+
         [DllImport(DllName)]
         public static extern void YGInteropSetLogger(
             [MarshalAs(UnmanagedType.FunctionPtr)] YogaLogger.Func func);
 
         [DllImport(DllName)]
-        public static extern IntPtr YGNodeNew();
-
-        [DllImport(DllName)]
-        public static extern void YGNodeInit(IntPtr node);
+        public static extern YGNodeHandle YGNodeNew();
 
         [DllImport(DllName)]
         public static extern void YGNodeFree(IntPtr node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeReset(IntPtr node);
+        public static extern void YGNodeReset(YGNodeHandle node);
 
         [DllImport(DllName)]
         public static extern int YGNodeGetInstanceCount();
@@ -49,237 +68,225 @@ namespace Facebook.Yoga
             YogaExperimentalFeature feature);
 
         [DllImport(DllName)]
-        public static extern void YGNodeInsertChild(IntPtr node, IntPtr child, uint index);
+        public static extern void YGNodeInsertChild(YGNodeHandle node, YGNodeHandle child, uint index);
 
         [DllImport(DllName)]
-        public static extern void YGNodeRemoveChild(IntPtr node, IntPtr child);
+        public static extern void YGNodeRemoveChild(YGNodeHandle node, YGNodeHandle child);
 
         [DllImport(DllName)]
-        public static extern IntPtr YGNodeGetChild(IntPtr node, uint index);
-
-        [DllImport(DllName)]
-        public static extern uint YGNodeChildCount(IntPtr node);
-
-        [DllImport(DllName)]
-        public static extern void YGNodeCalculateLayout(IntPtr node,
+        public static extern void YGNodeCalculateLayout(YGNodeHandle node,
                             float availableWidth,
                             float availableHeight,
                             YogaDirection parentDirection);
 
         [DllImport(DllName)]
-        public static extern void YGNodeMarkDirty(IntPtr node);
+        public static extern void YGNodeMarkDirty(YGNodeHandle node);
 
         [DllImport(DllName)]
         [return: MarshalAs(UnmanagedType.I1)]
-        public static extern bool YGNodeIsDirty(IntPtr node);
+        public static extern bool YGNodeIsDirty(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodePrint(IntPtr node, YogaPrintOptions options);
+        public static extern void YGNodePrint(YGNodeHandle node, YogaPrintOptions options);
 
         [DllImport(DllName)]
         [return: MarshalAs(UnmanagedType.I1)]
         public static extern bool YGValueIsUndefined(float value);
 
         [DllImport(DllName)]
-        public static extern void YGNodeCopyStyle(IntPtr dstNode, IntPtr srcNode);
+        public static extern void YGNodeCopyStyle(YGNodeHandle dstNode, YGNodeHandle srcNode);
 
         #region YG_NODE_PROPERTY
 
-        [DllImport(DllName)]
-        public static extern void YGNodeSetContext(IntPtr node, IntPtr context);
-
-        [DllImport(DllName)]
-        public static extern IntPtr YGNodeGetContext(IntPtr node);
-
         [DllImport(DllName)]
         public static extern void YGNodeSetMeasureFunc(
-            IntPtr node,
+            YGNodeHandle node,
             [MarshalAs(UnmanagedType.FunctionPtr)] YogaMeasureFunc measureFunc);
 
         [DllImport(DllName)]
         [return: MarshalAs(UnmanagedType.FunctionPtr)]
-        public static extern YogaMeasureFunc YGNodeGetMeasureFunc(IntPtr node);
+        public static extern YogaMeasureFunc YGNodeGetMeasureFunc(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeSetHasNewLayout(IntPtr node, [MarshalAs(UnmanagedType.I1)] bool hasNewLayout);
+        public static extern void YGNodeSetHasNewLayout(YGNodeHandle node, [MarshalAs(UnmanagedType.I1)] bool hasNewLayout);
 
         [DllImport(DllName)]
         [return: MarshalAs(UnmanagedType.I1)]
-        public static extern bool YGNodeGetHasNewLayout(IntPtr node);
+        public static extern bool YGNodeGetHasNewLayout(YGNodeHandle node);
 
         #endregion
 
         #region YG_NODE_STYLE_PROPERTY
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetDirection(IntPtr node, YogaDirection direction);
+        public static extern void YGNodeStyleSetDirection(YGNodeHandle node, YogaDirection direction);
 
         [DllImport(DllName)]
-        public static extern YogaDirection YGNodeStyleGetDirection(IntPtr node);
+        public static extern YogaDirection YGNodeStyleGetDirection(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetFlexDirection(IntPtr node, YogaFlexDirection flexDirection);
+        public static extern void YGNodeStyleSetFlexDirection(YGNodeHandle node, YogaFlexDirection flexDirection);
 
         [DllImport(DllName)]
-        public static extern YogaFlexDirection YGNodeStyleGetFlexDirection(IntPtr node);
+        public static extern YogaFlexDirection YGNodeStyleGetFlexDirection(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetJustifyContent(IntPtr node, YogaJustify justifyContent);
+        public static extern void YGNodeStyleSetJustifyContent(YGNodeHandle node, YogaJustify justifyContent);
 
         [DllImport(DllName)]
-        public static extern YogaJustify YGNodeStyleGetJustifyContent(IntPtr node);
+        public static extern YogaJustify YGNodeStyleGetJustifyContent(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetAlignContent(IntPtr node, YogaAlign alignContent);
+        public static extern void YGNodeStyleSetAlignContent(YGNodeHandle node, YogaAlign alignContent);
 
         [DllImport(DllName)]
-        public static extern YogaAlign YGNodeStyleGetAlignContent(IntPtr node);
+        public static extern YogaAlign YGNodeStyleGetAlignContent(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetAlignItems(IntPtr node, YogaAlign alignItems);
+        public static extern void YGNodeStyleSetAlignItems(YGNodeHandle node, YogaAlign alignItems);
 
         [DllImport(DllName)]
-        public static extern YogaAlign YGNodeStyleGetAlignItems(IntPtr node);
+        public static extern YogaAlign YGNodeStyleGetAlignItems(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetAlignSelf(IntPtr node, YogaAlign alignSelf);
+        public static extern void YGNodeStyleSetAlignSelf(YGNodeHandle node, YogaAlign alignSelf);
 
         [DllImport(DllName)]
-        public static extern YogaAlign YGNodeStyleGetAlignSelf(IntPtr node);
+        public static extern YogaAlign YGNodeStyleGetAlignSelf(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetPositionType(IntPtr node, YogaPositionType positionType);
+        public static extern void YGNodeStyleSetPositionType(YGNodeHandle node, YogaPositionType positionType);
 
         [DllImport(DllName)]
-        public static extern YogaPositionType YGNodeStyleGetPositionType(IntPtr node);
+        public static extern YogaPositionType YGNodeStyleGetPositionType(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetFlexWrap(IntPtr node, YogaWrap flexWrap);
+        public static extern void YGNodeStyleSetFlexWrap(YGNodeHandle node, YogaWrap flexWrap);
 
         [DllImport(DllName)]
-        public static extern YogaWrap YGNodeStyleGetFlexWrap(IntPtr node);
+        public static extern YogaWrap YGNodeStyleGetFlexWrap(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetOverflow(IntPtr node, YogaOverflow flexWrap);
+        public static extern void YGNodeStyleSetOverflow(YGNodeHandle node, YogaOverflow flexWrap);
 
         [DllImport(DllName)]
-        public static extern YogaOverflow YGNodeStyleGetOverflow(IntPtr node);
+        public static extern YogaOverflow YGNodeStyleGetOverflow(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetFlex(IntPtr node, float flex);
+        public static extern void YGNodeStyleSetFlex(YGNodeHandle node, float flex);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetFlexGrow(IntPtr node, float flexGrow);
+        public static extern void YGNodeStyleSetFlexGrow(YGNodeHandle node, float flexGrow);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetFlexGrow(IntPtr node);
+        public static extern float YGNodeStyleGetFlexGrow(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetFlexShrink(IntPtr node, float flexShrink);
+        public static extern void YGNodeStyleSetFlexShrink(YGNodeHandle node, float flexShrink);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetFlexShrink(IntPtr node);
+        public static extern float YGNodeStyleGetFlexShrink(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetFlexBasis(IntPtr node, float flexBasis);
+        public static extern void YGNodeStyleSetFlexBasis(YGNodeHandle node, float flexBasis);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetFlexBasis(IntPtr node);
+        public static extern float YGNodeStyleGetFlexBasis(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetWidth(IntPtr node, float width);
+        public static extern void YGNodeStyleSetWidth(YGNodeHandle node, float width);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetWidth(IntPtr node);
+        public static extern float YGNodeStyleGetWidth(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetHeight(IntPtr node, float height);
+        public static extern void YGNodeStyleSetHeight(YGNodeHandle node, float height);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetHeight(IntPtr node);
+        public static extern float YGNodeStyleGetHeight(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetMinWidth(IntPtr node, float minWidth);
+        public static extern void YGNodeStyleSetMinWidth(YGNodeHandle node, float minWidth);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetMinWidth(IntPtr node);
+        public static extern float YGNodeStyleGetMinWidth(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetMinHeight(IntPtr node, float minHeight);
+        public static extern void YGNodeStyleSetMinHeight(YGNodeHandle node, float minHeight);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetMinHeight(IntPtr node);
+        public static extern float YGNodeStyleGetMinHeight(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetMaxWidth(IntPtr node, float maxWidth);
+        public static extern void YGNodeStyleSetMaxWidth(YGNodeHandle node, float maxWidth);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetMaxWidth(IntPtr node);
+        public static extern float YGNodeStyleGetMaxWidth(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetMaxHeight(IntPtr node, float maxHeight);
+        public static extern void YGNodeStyleSetMaxHeight(YGNodeHandle node, float maxHeight);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetMaxHeight(IntPtr node);
+        public static extern float YGNodeStyleGetMaxHeight(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetAspectRatio(IntPtr node, float aspectRatio);
+        public static extern void YGNodeStyleSetAspectRatio(YGNodeHandle node, float aspectRatio);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetAspectRatio(IntPtr node);
+        public static extern float YGNodeStyleGetAspectRatio(YGNodeHandle node);
 
         #endregion
 
         #region YG_NODE_STYLE_EDGE_PROPERTY
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetPosition(IntPtr node, YogaEdge edge, float position);
+        public static extern void YGNodeStyleSetPosition(YGNodeHandle node, YogaEdge edge, float position);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetPosition(IntPtr node, YogaEdge edge);
+        public static extern float YGNodeStyleGetPosition(YGNodeHandle node, YogaEdge edge);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetMargin(IntPtr node, YogaEdge edge, float margin);
+        public static extern void YGNodeStyleSetMargin(YGNodeHandle node, YogaEdge edge, float margin);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetMargin(IntPtr node, YogaEdge edge);
+        public static extern float YGNodeStyleGetMargin(YGNodeHandle node, YogaEdge edge);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetPadding(IntPtr node, YogaEdge edge, float padding);
+        public static extern void YGNodeStyleSetPadding(YGNodeHandle node, YogaEdge edge, float padding);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetPadding(IntPtr node, YogaEdge edge);
+        public static extern float YGNodeStyleGetPadding(YGNodeHandle node, YogaEdge edge);
 
         [DllImport(DllName)]
-        public static extern void YGNodeStyleSetBorder(IntPtr node, YogaEdge edge, float border);
+        public static extern void YGNodeStyleSetBorder(YGNodeHandle node, YogaEdge edge, float border);
 
         [DllImport(DllName)]
-        public static extern float YGNodeStyleGetBorder(IntPtr node, YogaEdge edge);
+        public static extern float YGNodeStyleGetBorder(YGNodeHandle node, YogaEdge edge);
 
         #endregion
 
         #region YG_NODE_LAYOUT_PROPERTY
 
         [DllImport(DllName)]
-        public static extern float YGNodeLayoutGetLeft(IntPtr node);
+        public static extern float YGNodeLayoutGetLeft(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern float YGNodeLayoutGetTop(IntPtr node);
+        public static extern float YGNodeLayoutGetTop(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern float YGNodeLayoutGetRight(IntPtr node);
+        public static extern float YGNodeLayoutGetRight(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern float YGNodeLayoutGetBottom(IntPtr node);
+        public static extern float YGNodeLayoutGetBottom(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern float YGNodeLayoutGetWidth(IntPtr node);
+        public static extern float YGNodeLayoutGetWidth(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern float YGNodeLayoutGetHeight(IntPtr node);
+        public static extern float YGNodeLayoutGetHeight(YGNodeHandle node);
 
         [DllImport(DllName)]
-        public static extern YogaDirection YGNodeLayoutGetDirection(IntPtr node);
+        public static extern YogaDirection YGNodeLayoutGetDirection(YGNodeHandle node);
 
         #endregion
     }

csharp/Facebook.Yoga/YogaNode.Create.cs

@@ -31,12 +31,12 @@ namespace Facebook.Yoga
             Spacing margin = null,
             Spacing padding = null,
             Spacing border = null,
-            float? Width = null,
-            float? Height = null,
-            float? MaxWidth = null,
-            float? MaxHeight = null,
-            float? MinWidth = null,
-            float? MinHeight = null)
+            float? width = null,
+            float? height = null,
+            float? maxWidth = null,
+            float? maxHeight = null,
+            float? minWidth = null,
+            float? minHeight = null)
         {
             YogaNode node = new YogaNode();
 
@@ -197,34 +197,34 @@ namespace Facebook.Yoga
                 }
             }
 
-            if (Width.HasValue)
+            if (width.HasValue)
             {
-                node.Width = Width.Value;
+                node.Width = width.Value;
             }
 
-            if (Height.HasValue)
+            if (height.HasValue)
             {
-                node.Height = Height.Value;
+                node.Height = height.Value;
             }
 
-            if (MinWidth.HasValue)
+            if (minWidth.HasValue)
             {
-                node.MinWidth = MinWidth.Value;
+                node.MinWidth = minWidth.Value;
             }
 
-            if (MinHeight.HasValue)
+            if (minHeight.HasValue)
             {
-                node.MinHeight = MinHeight.Value;
+                node.MinHeight = minHeight.Value;
             }
 
-            if (MaxWidth.HasValue)
+            if (maxWidth.HasValue)
             {
-                node.MaxWidth = MaxWidth.Value;
+                node.MaxWidth = maxWidth.Value;
             }
 
-            if (MaxHeight.HasValue)
+            if (maxHeight.HasValue)
             {
-                node.MaxHeight = MaxHeight.Value;
+                node.MaxHeight = maxHeight.Value;
             }
 
             return node;

csharp/Facebook.Yoga/YogaNode.cs

@@ -17,7 +17,7 @@ namespace Facebook.Yoga
 {
     public partial class YogaNode : IEnumerable<YogaNode>
     {
-        private IntPtr _ygNode;
+        private Native.YGNodeHandle _ygNode;
         private WeakReference _parent;
         private List<YogaNode> _children;
         private MeasureFunction _measureFunction;
@@ -29,17 +29,12 @@ namespace Facebook.Yoga
             YogaLogger.Initialize();
 
             _ygNode = Native.YGNodeNew();
-            if (_ygNode == IntPtr.Zero)
+            if (_ygNode.IsInvalid)
             {
                 throw new InvalidOperationException("Failed to allocate native memory");
             }
         }
 
-        ~YogaNode()
-        {
-            Native.YGNodeFree(_ygNode);
-        }
-
         public void Reset()
         {
             _measureFunction = null;
@@ -537,8 +532,7 @@ namespace Facebook.Yoga
                 throw new InvalidOperationException("Measure function is not defined.");
             }
 
-            long output = _measureFunction(this, width, widthMode, height, heightMode);
-            return new YogaSize { width = MeasureOutput.GetWidth(output), height = MeasureOutput.GetHeight(output) };
+            return _measureFunction(this, width, widthMode, height, heightMode);
         }
 
         public string Print(YogaPrintOptions options =

csharp/Facebook.Yoga/project.json

@@ -3,7 +3,8 @@
   "version": "3.0.0-*",
 
   "dependencies": {
-    "NETStandard.Library": "1.6.0"
+    "NETStandard.Library": "1.6.0",
+    "System.Runtime.Handles": "4.3.0"
   },
 
   "frameworks": {

csharp/Unity/.gitignore

@@ -0,0 +1,3 @@
+Yoga
+yoga.dll
+yoga.unitypackage

csharp/Unity/pack.sh

@@ -0,0 +1,64 @@
+#!/bin/sh
+# 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.
+
+set -e
+
+cd "$( dirname "$0" )"
+
+if [ \! -f yoga.dll ]; then
+  echo "Launch win.bat on Windows and copy yoga.dll to here"
+  exit 1
+fi
+
+function build {
+  buck build $1
+  echo "$root/`buck targets --show-output $1|tail -1|awk '{print $2}'`"
+}
+
+function copy {
+  mkdir -p $3
+  cp $1 $3/$2
+}
+
+rm -rf Yoga yoga.unitypackage
+
+root=`buck root|tail -f`
+mac=$(build '//csharp:yoganet#default,shared')
+armv7=$(build '//csharp:yoganet#android-armv7,shared')
+ios=$(build '//csharp:yoganet-ios')
+win=yoga.dll
+
+Unity -quit -batchMode -createProject Yoga
+
+copy $win ${win##*/} Yoga/Assets/Facebook.Yoga/Plugins/x86_64
+copy $mac yoga Yoga/Assets/Facebook.Yoga/Plugins/x86_64/yoga.bundle/Contents/MacOS
+armv7path=Assets/Plugins/Android/libs/armeabi-v7a
+copy $armv7 ${armv7##*/} Yoga/$armv7path
+iospath=Assets/Plugins/iOS
+copy $ios ${ios##*/} Yoga/$iospath
+libs="$armv7path/${armv7##*/} $iospath/${ios##*/}"
+
+scripts=Yoga/Assets/Facebook.Yoga/Scripts/Facebook.Yoga
+mkdir -p $scripts
+(cd ../Facebook.Yoga; tar cf - *.cs)|tar -C $scripts -xf -
+
+tests=Yoga/Assets/Facebook.Yoga/Editor/Facebook.Yoga.Tests
+mkdir -p $tests
+(cd ../tests/Facebook.Yoga; tar cf - *.cs)|tar -C $tests -xf -
+
+function onerror {
+  local xml=Yoga/EditorTestResults.xml
+  if [ -f $xml ]; then cat $xml|grep 'success="False"'; fi
+}
+trap onerror EXIT
+Unity -quit -batchMode -projectPath `pwd`/Yoga -runEditorTests
+
+pkg="`pwd`/yoga.unitypackage"
+Unity -quit -batchMode -projectPath `pwd`/Yoga -exportPackage Assets/Facebook.Yoga $libs $pkg
+
+echo "Success: $pkg"

csharp/Unity/win.bat

@@ -0,0 +1,2 @@
+"C:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild.exe" ..\Yoga\Yoga.vcxproj /p:configuration=Release /property:Platform=x64
+xcopy "..\Yoga\x64\Release\yoga.dll" %~dp0 /s /d /y

csharp/Yoga/Yoga.vcxproj

@@ -21,6 +21,7 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{0446C86B-F47B-4C46-B673-C7AE0CFF35D5}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
+    <ProjectName>yoga</ProjectName>
     <RootNamespace>Yoga</RootNamespace>
     <WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>
   </PropertyGroup>

csharp/tests/Facebook.Yoga/YGMinMaxDimensionTest.cs

@@ -454,5 +454,226 @@ namespace Facebook.Yoga
             Assert.AreEqual(20f, root_child0_child0.LayoutHeight);
         }
 
+        [Test]
+        public void Test_flex_grow_within_constrained_min_row()
+        {
+            YogaNode root = new YogaNode();
+            root.FlexDirection = YogaFlexDirection.Row;
+            root.MinWidth = 100f;
+            root.Height = 100f;
+
+            YogaNode root_child0 = new YogaNode();
+            root_child0.FlexGrow = 1f;
+            root.Insert(0, root_child0);
+
+            YogaNode root_child1 = new YogaNode();
+            root_child1.Width = 50f;
+            root.Insert(1, root_child1);
+            root.StyleDirection = YogaDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(50f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(50f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(50f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+
+            root.StyleDirection = YogaDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(50f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(50f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(0f, root_child1.LayoutY);
+            Assert.AreEqual(50f, root_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child1.LayoutHeight);
+        }
+
+        [Test]
+        public void Test_flex_grow_within_constrained_min_column()
+        {
+            YogaNode root = new YogaNode();
+            root.MinHeight = 100f;
+
+            YogaNode root_child0 = new YogaNode();
+            root_child0.FlexGrow = 1f;
+            root.Insert(0, root_child0);
+
+            YogaNode root_child1 = new YogaNode();
+            root_child1.Height = 50f;
+            root.Insert(1, root_child1);
+            root.StyleDirection = YogaDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(0f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(0f, root_child0.LayoutWidth);
+            Assert.AreEqual(50f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(50f, root_child1.LayoutY);
+            Assert.AreEqual(0f, root_child1.LayoutWidth);
+            Assert.AreEqual(50f, root_child1.LayoutHeight);
+
+            root.StyleDirection = YogaDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(0f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(0f, root_child0.LayoutWidth);
+            Assert.AreEqual(50f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(50f, root_child1.LayoutY);
+            Assert.AreEqual(0f, root_child1.LayoutWidth);
+            Assert.AreEqual(50f, root_child1.LayoutHeight);
+        }
+
+        [Test]
+        public void Test_flex_grow_within_constrained_max_row()
+        {
+            YogaNode root = new YogaNode();
+            root.Width = 200f;
+
+            YogaNode root_child0 = new YogaNode();
+            root_child0.FlexDirection = YogaFlexDirection.Row;
+            root_child0.MaxWidth = 100f;
+            root_child0.Height = 100f;
+            root.Insert(0, root_child0);
+
+            YogaNode root_child0_child0 = new YogaNode();
+            root_child0_child0.FlexShrink = 1f;
+            root_child0_child0.FlexBasis = 100f;
+            root_child0.Insert(0, root_child0_child0);
+
+            YogaNode root_child0_child1 = new YogaNode();
+            root_child0_child1.Width = 50f;
+            root_child0.Insert(1, root_child0_child1);
+            root.StyleDirection = YogaDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(200f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0_child0.LayoutY);
+            Assert.AreEqual(50f, root_child0_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0_child0.LayoutHeight);
+
+            Assert.AreEqual(50f, root_child0_child1.LayoutX);
+            Assert.AreEqual(0f, root_child0_child1.LayoutY);
+            Assert.AreEqual(50f, root_child0_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child0_child1.LayoutHeight);
+
+            root.StyleDirection = YogaDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(200f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(100f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(50f, root_child0_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0_child0.LayoutY);
+            Assert.AreEqual(50f, root_child0_child0.LayoutWidth);
+            Assert.AreEqual(100f, root_child0_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0_child1.LayoutX);
+            Assert.AreEqual(0f, root_child0_child1.LayoutY);
+            Assert.AreEqual(50f, root_child0_child1.LayoutWidth);
+            Assert.AreEqual(100f, root_child0_child1.LayoutHeight);
+        }
+
+        [Test]
+        public void Test_flex_grow_within_constrained_max_column()
+        {
+            YogaNode root = new YogaNode();
+            root.Width = 100f;
+            root.MaxHeight = 100f;
+
+            YogaNode root_child0 = new YogaNode();
+            root_child0.FlexShrink = 1f;
+            root_child0.FlexBasis = 100f;
+            root.Insert(0, root_child0);
+
+            YogaNode root_child1 = new YogaNode();
+            root_child1.Height = 50f;
+            root.Insert(1, root_child1);
+            root.StyleDirection = YogaDirection.LTR;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(50f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(50f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(50f, root_child1.LayoutHeight);
+
+            root.StyleDirection = YogaDirection.RTL;
+            root.CalculateLayout();
+
+            Assert.AreEqual(0f, root.LayoutX);
+            Assert.AreEqual(0f, root.LayoutY);
+            Assert.AreEqual(100f, root.LayoutWidth);
+            Assert.AreEqual(100f, root.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child0.LayoutX);
+            Assert.AreEqual(0f, root_child0.LayoutY);
+            Assert.AreEqual(100f, root_child0.LayoutWidth);
+            Assert.AreEqual(50f, root_child0.LayoutHeight);
+
+            Assert.AreEqual(0f, root_child1.LayoutX);
+            Assert.AreEqual(50f, root_child1.LayoutY);
+            Assert.AreEqual(100f, root_child1.LayoutWidth);
+            Assert.AreEqual(50f, root_child1.LayoutHeight);
+        }
+
     }
 }

csharp/tests/Facebook.Yoga/YogaNodeCreateTest.cs

@@ -87,12 +87,12 @@ namespace Facebook.Yoga
                 padding: new Spacing(top: 13, bottom: 14, left: 15, right: 16),
                 border: new Spacing(top: 17, bottom: 18, left: 19, right: 20),
 
-                Width: 21,
-                Height: 22,
-                MinWidth: 23,
-                MinHeight: 24,
-                MaxWidth: 25,
-                MaxHeight: 26);
+                width: 21,
+                height: 22,
+                minWidth: 23,
+                minHeight: 24,
+                maxWidth: 25,
+                maxHeight: 26);
 
             Assert.AreEqual(YogaDirection.RTL, node.StyleDirection);
             Assert.AreEqual(YogaFlexDirection.RowReverse, node.FlexDirection);

csharp/tests/Facebook.Yoga/YogaNodeTest.cs

@@ -169,8 +169,8 @@ namespace Facebook.Yoga
                 return MeasureOutput.Make(123.4f, 81.7f);
             });
             node.CalculateLayout();
-            Assert.AreEqual(123, node.LayoutWidth);
-            Assert.AreEqual(81, node.LayoutHeight);
+            Assert.AreEqual(123.4f, node.LayoutWidth);
+            Assert.AreEqual(81.7f, node.LayoutHeight);
         }
 
         [Test]
@@ -228,7 +228,6 @@ namespace Facebook.Yoga
             Assert.AreEqual(100, node0.MaxHeight);
         }
 
-#if !UNITY_EDITOR
         private void ForceGC()
         {
             GC.Collect(GC.MaxGeneration);
@@ -356,6 +355,5 @@ namespace Facebook.Yoga
                 return MeasureOutput.Make(120, 130);
             });
         }
-#endif
     }
 }

csharp/tests/Facebook.Yoga/test_macos.sh

@@ -1,16 +1,6 @@
 #!/bin/sh
-if clang --version >/dev/null 2>&1; then true; else
-  echo "ERROR: Can't execute clang. You need to install Xcode and command line tools."
-  exit 1
-fi
-
-if mcs --version >/dev/null 2>&1; then true; else
-  echo "ERROR: Can't execute mcs. You need to install Mono from http://www.mono-project.com/download/ and re-login to apply PATH environment."
-  exit 1
-fi
-
-if mono --version >/dev/null 2>&1; then true; else
-  echo "ERROR: Can't execute mono64. You need to install Mono from http://www.mono-project.com/download/ and re-login to apply PATH environment."
+if mcs --version >/dev/null 2>&1 && mono --version >/dev/null 2>&1; then true; else
+  echo "ERROR: Need to install Mono (brew install mono, or http://www.mono-project.com/download/)"
   exit 1
 fi
 
@@ -28,6 +18,11 @@ if [ -d $NUNIT \
   rm NUnit-2.6.4.zip
 fi
 
-clang -g -Wall -Wextra -dynamiclib -o libyoga.dylib -I../../.. ../../../yoga/*.c ../../Yoga/YGInterop.cpp
+TARGET=//csharp:yoganet#default,shared
+buck build $TARGET
+ROOT=`buck root|tail -1`
+DYLIB=`buck targets --show-output $TARGET|tail -1|awk '{print $2}'`
+cp $ROOT/$DYLIB .
+
 mcs -debug -t:library -r:$NUNIT/nunit.framework.dll -out:YogaTest.dll *.cs ../../../csharp/Facebook.Yoga/*cs
 MONO_PATH=$NUNIT mono --arch=64 --debug $NUNIT/nunit-console.exe YogaTest.dll

docs/.gitignore

@@ -0,0 +1,6 @@
+_site/
+.sass-cache/
+.DS_STORE
+*.swo
+*.swp
+*.psd

docs/CONTRIBUTING.md

@@ -0,0 +1,115 @@
+This provides guidance on how to contribute various content to `your-site`.
+
+## Getting started
+
+You should only have to do these one time.
+
+- Rename this file to `CONTRIBUTING.md`.
+- Rename `EXAMPLE-README-FOR-RUNNING-DOCS.md` to `README.md` (replacing the existing `README.md` that came with the template).
+- Rename `EXAMPLE-LICENSE` to `LICENSE`.
+- Review the [template information](./TEMPLATE-INFORMATION.md).
+- Review `./_config.yml`.
+- Make sure you update `title`, `description`, `tagline` and `gacode` (Google Analytics) in `./_config.yml`.
+
+## Basic Structure
+
+Most content is written in markdown. You name the file `something.md`, then have a header that looks like this:
+
+```
+---
+docid: getting-started
+title: Getting started with ProjectName
+layout: docs
+permalink: /docs/getting-started.html
+---
+```
+
+Customize these values for each document, blog post, etc.
+
+> The filename of the `.md` file doesn't actually matter; what is important is the `docid` being unique and the `permalink` correct and unique too).
+
+## Landing page
+
+Modify `index.md` with your new or updated content.
+
+If you want a `GridBlock` as part of your content, you can do so directly with HTML:
+
+```
+<div class="gridBlock">
+  <div class="blockElement twoByGridBlock alignLeft">
+    <div class="blockContent">
+      <h3>Your Features</h3>
+      <ul>
+        <li>The <a href="http://example.org/">Example</a></li>
+        <li><a href="http://example.com">Another Example</a></li>
+      </ul>
+    </div>
+  </div>
+
+  <div class="blockElement twoByGridBlock alignLeft">
+    <div class="blockContent">
+      <h3>More information</h3>
+      <p>
+         Stuff here
+      </p>
+    </div>
+  </div>
+</div>
+```
+
+or with a combination of changing `./_data/features.yml` and adding some Liquid to `index.md`, such as:
+
+```
+{% include content/gridblocks.html data_source=site.data.features imagealign="bottom"%}
+```
+
+## Blog
+
+To modify a blog post, edit the appopriate markdown file in `./_posts/`.
+
+Adding a new blog post is a four-step process.
+
+> Some posts have a `permalink` and `comments` in the blog post YAML header. You will not need these for new blog posts. These are an artifact of migrating the blog from Wordpress to gh-pages.
+
+1. Create your blog post in `./_posts/` in markdown (file extension `.md` or `.markdown`). See current posts in that folder or `./doc-type-examples/2016-04-07-blog-post-example.md` for an example of the YAML format. **If the `./_posts` directory does not exist, create it**.
+  - You can add a `<!--truncate-->` tag in the middle of your post such that you show only the excerpt above that tag in the main `/blog` index on your page.
+1. If you have not authored a blog post before, modify the `./_data/authors.yml` file with the `author` id you used in your blog post, along with your full name and Facebook ID to get your profile picture.
+1. [Run the site locally](./README.md) to test your changes. It will be at `http://127.0.0.1/blog/your-new-blog-post-title.html`
+1. Push your changes to GitHub.
+
+## Docs
+
+To modify docs, edit the appropriate markdown file in `./_docs/`.
+
+To add docs to the site....
+
+1. Add your markdown file to the `./_docs/` folder. See `./doc-type-examples/docs-hello-world.md` for an example of the YAML header format. **If the `./_docs/` directory does not exist, create it**.
+  - You can use folders in the `./_docs/` directory to organize your content if you want.
+1. Update `_data/nav_docs.yml` to add your new document to the navigation bar. Use the `docid` you put in your doc markdown in as the `id` in the `_data/nav_docs.yml` file.
+1. [Run the site locally](./README.md) to test your changes. It will be at `http://127.0.0.1/docs/your-new-doc-permalink.html`
+1. Push your changes to GitHub.
+
+## Header Bar
+
+To modify the header bar, change `./_data/nav.yml`.
+
+## Top Level Page
+
+To modify a top-level page, edit the appropriate markdown file in `./top-level/`
+
+If you want a top-level page (e.g., http://your-site.com/top-level.html) -- not in `/blog/` or `/docs/`....
+
+1. Create a markdown file in the root `./top-level/`. See `./doc-type-examples/top-level-example.md` for more information.
+1. If you want a visible link to that file, update `_data/nav.yml` to add a link to your new top-level document in the header bar.
+
+   > This is not necessary if you just want to have a page that is linked to from another page, but not exposed as direct link to the user.
+
+1. [Run the site locally](./README.md) to test your changes. It will be at `http://127.0.0.1/your-top-level-page-permalink.html`
+1. Push your changes to GitHub.
+
+## Other Changes
+
+- CSS: `./css/main.css` or `./_sass/*.scss`.
+- Images: `./static/images/[docs | posts]/....`
+- Main Blog post HTML: `./_includes/post.html`
+- Main Docs HTML: `./_includes/doc.html`

docs/Gemfile

@@ -0,0 +1,2 @@
+source 'https://rubygems.org'
+gem 'github-pages', '~> 104'

docs/Gemfile.lock

@@ -0,0 +1,145 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activesupport (4.2.7)
+      i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    addressable (2.4.0)
+    coffee-script (2.4.1)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.10.0)
+    colorator (1.1.0)
+    ethon (0.9.1)
+      ffi (>= 1.3.0)
+    execjs (2.7.0)
+    faraday (0.9.2)
+      multipart-post (>= 1.2, < 3)
+    ffi (1.9.14)
+    forwardable-extended (2.6.0)
+    gemoji (2.1.0)
+    github-pages (104)
+      activesupport (= 4.2.7)
+      github-pages-health-check (= 1.2.0)
+      jekyll (= 3.3.0)
+      jekyll-avatar (= 0.4.2)
+      jekyll-coffeescript (= 1.0.1)
+      jekyll-feed (= 0.8.0)
+      jekyll-gist (= 1.4.0)
+      jekyll-github-metadata (= 2.2.0)
+      jekyll-mentions (= 1.2.0)
+      jekyll-paginate (= 1.1.0)
+      jekyll-redirect-from (= 0.11.0)
+      jekyll-sass-converter (= 1.3.0)
+      jekyll-seo-tag (= 2.1.0)
+      jekyll-sitemap (= 0.12.0)
+      jekyll-swiss (= 0.4.0)
+      jemoji (= 0.7.0)
+      kramdown (= 1.11.1)
+      liquid (= 3.0.6)
+      listen (= 3.0.6)
+      mercenary (~> 0.3)
+      minima (= 2.0.0)
+      rouge (= 1.11.1)
+      terminal-table (~> 1.4)
+    github-pages-health-check (1.2.0)
+      addressable (~> 2.3)
+      net-dns (~> 0.8)
+      octokit (~> 4.0)
+      public_suffix (~> 1.4)
+      typhoeus (~> 0.7)
+    html-pipeline (2.4.2)
+      activesupport (>= 2)
+      nokogiri (>= 1.4)
+    i18n (0.7.0)
+    jekyll (3.3.0)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
+      jekyll-sass-converter (~> 1.0)
+      jekyll-watch (~> 1.1)
+      kramdown (~> 1.3)
+      liquid (~> 3.0)
+      mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
+      rouge (~> 1.7)
+      safe_yaml (~> 1.0)
+    jekyll-avatar (0.4.2)
+      jekyll (~> 3.0)
+    jekyll-coffeescript (1.0.1)
+      coffee-script (~> 2.2)
+    jekyll-feed (0.8.0)
+      jekyll (~> 3.3)
+    jekyll-gist (1.4.0)
+      octokit (~> 4.2)
+    jekyll-github-metadata (2.2.0)
+      jekyll (~> 3.1)
+      octokit (~> 4.0, != 4.4.0)
+    jekyll-mentions (1.2.0)
+      activesupport (~> 4.0)
+      html-pipeline (~> 2.3)
+      jekyll (~> 3.0)
+    jekyll-paginate (1.1.0)
+    jekyll-redirect-from (0.11.0)
+      jekyll (>= 2.0)
+    jekyll-sass-converter (1.3.0)
+      sass (~> 3.2)
+    jekyll-seo-tag (2.1.0)
+      jekyll (~> 3.3)
+    jekyll-sitemap (0.12.0)
+      jekyll (~> 3.3)
+    jekyll-swiss (0.4.0)
+    jekyll-watch (1.5.0)
+      listen (~> 3.0, < 3.1)
+    jemoji (0.7.0)
+      activesupport (~> 4.0)
+      gemoji (~> 2.0)
+      html-pipeline (~> 2.2)
+      jekyll (>= 3.0)
+    json (1.8.3)
+    kramdown (1.11.1)
+    liquid (3.0.6)
+    listen (3.0.6)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9.7)
+    mercenary (0.3.6)
+    mini_portile2 (2.1.0)
+    minima (2.0.0)
+    minitest (5.9.1)
+    multipart-post (2.0.0)
+    net-dns (0.8.0)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
+    octokit (4.4.1)
+      sawyer (~> 0.7.0, >= 0.5.3)
+    pathutil (0.14.0)
+      forwardable-extended (~> 2.6)
+    public_suffix (1.5.3)
+    rb-fsevent (0.9.8)
+    rb-inotify (0.9.7)
+      ffi (>= 0.5.0)
+    rouge (1.11.1)
+    safe_yaml (1.0.4)
+    sass (3.4.22)
+    sawyer (0.7.0)
+      addressable (>= 2.3.5, < 2.5)
+      faraday (~> 0.8, < 0.10)
+    terminal-table (1.7.3)
+      unicode-display_width (~> 1.1.1)
+    thread_safe (0.3.5)
+    typhoeus (0.8.0)
+      ethon (>= 0.8.0)
+    tzinfo (1.2.2)
+      thread_safe (~> 0.1)
+    unicode-display_width (1.1.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  github-pages (~> 104)
+
+BUNDLED WITH
+   1.13.1

docs/LICENSE

@@ -0,0 +1,385 @@
+Attribution 4.0 International
+
+=======================================================================
+
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+does not provide legal services or legal advice. Distribution of
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+

docs/README.md

@@ -0,0 +1,80 @@
+## User Documentation for Yoga
+
+This directory will contain the user, feature and API documentation for Yoga. The documentation will be hosted on GitHub pages.
+
+### Contributing
+
+See [CONTRIBUTING.md](./CONTRIBUTING.md) for details on how to add or modify content.
+
+### Run the Site Locally
+
+The requirements for running a GitHub pages site locally is described in [GitHub help](https://help.github.com/articles/setting-up-your-github-pages-site-locally-with-jekyll/#requirements). The steps below summarize these steps.
+
+> If you have run the site before, you can start with step 1 and then move on to step 5.
+
+1. Ensure that you are in the same directory where this `README.md` exists (e.g., it could be in `yoga/docs` on `master`, in the root of a `gh-pages` branch, etc). The below RubyGems commands, etc. must be run from there.
+
+1. Make sure you have Ruby and [RubyGems](https://rubygems.org/) installed.
+
+   > Ruby >= 2.2 is required for the gems. On the latest versions of Mac OS X, Ruby 2.0 is the
+   > default. Use [Homebrew](http://brew.sh) and the `brew install ruby` command (or your
+   > preferred upgrade mechanism) to install a newer version of Ruby for your Mac OS X system.
+
+1. Make sure you have [Bundler](http://bundler.io/) installed.
+
+    ```
+    # may require sudo
+    gem install bundler
+    ```
+1. Install the project's dependencies
+
+    ```
+    # run this in the 'docs' directory
+    bundle install
+    ```
+
+    > If you get an error when installing `nokogiri`, you may be running into the problem described
+    > in [this nokogiri issue](https://github.com/sparklemotion/nokogiri/issues/1483). You can
+    > either `brew uninstall xz` (and then `brew install xz` after the bundle is installed) or
+    > `xcode-select --install` (although this may not work if you have already installed command
+    > line tools).
+
+1. Run Jekyll's server.
+
+    - On first runs or for structural changes to the documentation (e.g., new sidebar menu item), do a full build.
+
+    ```
+    bundle exec jekyll serve
+    ```
+
+    - For content changes only, you can use `--incremental` for faster builds.
+
+    ```
+    bundle exec jekyll serve --incremental
+    ```
+
+    > We use `bundle exec` instead of running straight `jekyll` because `bundle exec` will always use the version of Jekyll from our `Gemfile`. Just running `jekyll` will use the system version and may not necessarily be compatible.
+
+    - To run using an actual IP address, you can use `--host=0.0.0.0`
+
+    ```
+    bundle exec jekyll serve --host=0.0.0.0
+    ```
+
+    This will allow you to use the IP address associated with your machine in the URL. That way you could share it with other people.
+
+    e.g., on a Mac, you can your IP address with something like `ifconfig | grep "inet " | grep -v 127.0.0.1`.
+
+1. Either of commands in the previous step will serve up the site on your local device at http://127.0.0.1:4000/ or http://localhost:4000.
+
+### Updating the Bundle
+
+The site depends on Github Pages and the installed bundle is based on the `github-pages` gem.
+Occasionally that gem might get updated with new or changed functionality. If that is the case,
+you can run:
+
+```
+bundle update
+```
+
+to get the latest packages for the installation.

docs/TEMPLATE-INFORMATION.md

@@ -0,0 +1,17 @@
+## Template Details
+
+First, go through `_config.yml` and adjust the available settings to your project's standard. When you make changes here, you'll have to kill the `jekyll serve` instance and restart it to see those changes, but that's only the case with the config file.
+
+Next, update some image assets - you'll want to update `favicon.png`, `logo.svg`, and `og_image.png` (used for Like button stories and Shares on Facbeook) in the `static` folder with your own logos.
+
+Next, if you're going to have docs on your site, keep the `_docs` and `docs` folders, if not, you can safely remove them (or you can safely leave them and not include them in your navigation - Jekyll renders all of this before a client views the site anyway, so there's no performance hit from just leaving it there for a future expansion).
+
+Same thing with a blog section, either keep or delete the `_posts` and `blog` folders.
+
+You can customize your homepage in three parts - the first in the homepage header, which is mostly automatically derived from the elements you insert into your config file. However, you can also specify a series of 'promotional' elements in `_data/promo.yml`. You can read that file for more information.
+
+The second place for your homepage is in `index.md` which contains the bulk of the main content below the header. This is all markdown if you want, but you can use HTML and Jekyll's template tags (called Liquid) in there too. Checkout this folder's index.md for an example of one common template tag that we use on our sites called gridblocks.
+
+The third and last place is in the `_data/powered_by.yml` and `_data/powered_by_highlight.yml` files. Both these files combine to create a section on the homepage that is intended to show a list of companies or apps that are using your project. The `powered_by_highlight` file is a list of curated companies/apps that you want to show as a highlight at the top of this section, including their logos in whatever format you want. The `powered_by` file is a more open list that is just text links to the companies/apps and can be updated via Pull Request by the community. If you don't want these sections on your homepage, just empty out both files and leave them blank.
+
+The last thing you'll want to do is setup your top level navigation bar. You can do this by editing `nav.yml` and keeping the existing title/href/category structure used there. Although the nav is responsive and fairly flexible design-wise, no more than 5 or 6 nav items is recommended.

docs/_config.yml

@@ -0,0 +1,85 @@
+# Site settings
+permalink: /blog/:year/:month/:day/:title.html
+title: YOGA
+tagline: A cross-platform layout engine
+
+fbappid: "1615782811974223"
+gacode: "UA-12345-6"
+
+# baseurl determines the subpath of your site. For example if you're using an
+# organisation.github.io/reponame/ basic site URL, then baseurl would be set
+# as "/reponame" but leave blank if you have a top-level domain URL as it is
+# now set to "" by default as discussed in:
+# http://jekyllrb.com/news/2016/10/06/jekyll-3-3-is-here/
+baseurl: "/yoga"
+
+# the base hostname & protocol for your site
+# If baseurl is set, then the absolute url for your site would be url/baseurl
+# This was also be set to the right thing automatically for local development
+# https://github.com/blog/2277-what-s-new-in-github-pages-with-jekyll-3-3
+# http://jekyllrb.com/news/2016/10/06/jekyll-3-3-is-here/
+url: "https://facebook.github.io"
+
+# Note: There are new filters in Jekyll 3.3 to help with absolute and relative urls
+# absolute_url
+# relative_url
+# So you will see these used throughout the Jekyll code in this template.
+# no more need for | prepend: site.url | prepend: site.baseurl
+# http://jekyllrb.com/news/2016/10/06/jekyll-3-3-is-here/
+#https://github.com/blog/2277-what-s-new-in-github-pages-with-jekyll-3-3
+
+# The GitHub repo for your project
+ghrepo: "facebook/yoga"
+
+# Use these color settings to determine your colour scheme for the site.
+color:
+  # primary should be a vivid color that reflects the project's brand
+  primary: "#97dccf"
+  # secondary should be a subtle light or dark color used on page backgrounds
+  secondary: "#ffffff"
+  # Use the following to specify whether the previous two colours are 'light'
+  # or 'dark' and therefore what colors can be overlaid on them
+  primary-overlay: "light"
+  secondary-overlay: "light"
+
+#Uncomment this if you want to enable Algolia doc search with your own values
+searchconfig:
+  apikey: "48f81041f782ed6463719d8d98c94f38"
+  indexname: "yoga"
+
+# Blog posts are built into Jekyll by default, with the `_posts` directory.
+# Here you can specify other types of documentation. The names here are `docs`
+# and `top-level`. This means their content will be in `_docs` and `_top-level`.
+# The permalink format is also given.
+# http://ben.balter.com/2015/02/20/jekyll-collections/
+collections:
+  docs:
+    output: true
+    permalink: /docs/:name/
+  top-level:
+    output: true
+    permalink: :name.html
+
+# DO NOT ADJUST BELOW THIS LINE UNLESS YOU KNOW WHAT YOU ARE CHANGING
+
+markdown: kramdown
+kramdown:
+  input: GFM
+  syntax_highlighter: rouge
+
+  syntax_highlighter_opts:
+    css_class: 'rougeHighlight'
+    span:
+      line_numbers: false
+    block:
+      line_numbers: true
+      start_line: 1
+
+sass:
+  style: :compressed
+
+redcarpet:
+  extensions: [with_toc_data]
+
+# Exclude these from the sites directory
+exclude: ['README.md', 'TEMPLATE-INFORMATION.md', 'CONTRIBUTING.md', 'Gemfile', 'Gemfile.lock']

docs/_data/authors.yml

@@ -0,0 +1,4 @@
+
+exampleauthor:
+  full_name: Example Author
+  fbid: 1234

docs/_data/features.yml

@@ -0,0 +1,2 @@
+# Add features here if you are using:
+# {% include content/gridblocks.html data_source=site.data.features align="center" %}

docs/_data/nav.yml

@@ -0,0 +1,10 @@
+- title: Documentation
+  href: docs/
+  category: api
+
+- title: GitHub
+  href: https://github.com/facebook/yoga
+  category: external
+
+# Use external for external links not associated with the paths of the current site.
+# If a category is external, site urls, for example, are not prepended to the href, etc..

docs/_data/nav_docs.yml

@@ -0,0 +1,24 @@
+- title: Quick Start
+  items:
+  - id: getting-started
+  - id: learn-more
+- title: Flexbox concepts
+  items:
+  - id: flex-direction
+  - id: justify-content
+  - id: flex-wrap
+  - id: alignment
+  - id: flex
+  - id: absolute-position
+  - id: min-max-dimen
+  - id: margin-padding-border
+- title: Yoga additions
+  items:
+  - id: aspect-ratio
+  - id: rtl
+- title: API
+  items:
+  - id: c
+  - id: objc
+  - id: java
+  - id: csharp

docs/_data/powered_by.yml

@@ -0,0 +1 @@
+# For non-highlighted projects. See format in powered_by_highlight.yml

docs/_data/powered_by_highlight.yml

@@ -0,0 +1,6 @@
+# React Native uses Yoga now. We can add a highlight later when other projects use it.
+#- title: Who Uses This Project?
+#  items:
+#  - name: React Native
+#    url: https://facebook.github.io/react-native
+#    img: static/images/react-native.png

docs/_data/promo.yml

@@ -0,0 +1,11 @@
+# This file determines the list of promotional elements added to the header of \
+# your site's homepage.
+
+- type: plugin_row
+  children:
+  - type: button
+    href: docs/getting-started/
+    text: Get Started
+  - type: button
+    href: docs/learn-more/
+    text: Learn More

docs/_docs/api/c.md

@@ -0,0 +1,74 @@
+---
+docid: c
+title: C
+layout: docs
+permalink: /docs/api/c/
+---
+`YGNodeRef` is the main object you will be interfacing with when using Yoga in C. `YGNodeRef` is a pointer to an internal `YGNode` struct.
+
+### Lifecycle
+
+The following functions control the lifecycle of a `YGNodeRef`.
+
+<script src="https://gist.github.com/emilsjolander/99e454d04df4765147f407bde131feca.js"></script>
+
+- `YGNodeReset` will reset a node to its initial state so it can be re-used without needing to re-allocate a new node.
+- `YGNodeFreeRecursive` is mostly used for testing and will free not only the node itself but also its children.
+
+### Children
+
+The following functions help manage the children of a node.
+
+<script src="https://gist.github.com/emilsjolander/7e162314294087bb78817c064d345afb.js"></script>
+
+### Style getters & setters
+
+The large part of Yoga's API consists of setters and getters for styles. These all follow the same general structure. Bellow are the function and enums used to control the various styles. For an in depth guide to how each style works see the getting started guide.
+
+<script src="https://gist.github.com/emilsjolander/74913a3326d952ff5a65dabe5ce4baf8.js"></script>
+
+### Layout results
+
+Once you have set up a tree of nodes with styles you will want to get the result of a layout calculation. Call `YGNodeCalculateLayout` with the desired width and height or `YGUndefined` to perform the layout calculation. Once this function returns the results of the layout calculation is stored on each node. Traverse the tree and retrieve the values from each node.
+
+<script src="https://gist.github.com/emilsjolander/7c7c9c61b69daff5b925719065fb0dc9.js"></script>
+
+### Custom measurements
+
+Certain nodes need to ability to measure themselves, the most common example is nodes which represent text. Text has an intrinsic size and requires measuring itself to determine that size. This is not something Yoga can do as it requires relying on the host system's text rendering engine.
+
+- Call `YGNodeMarkDirty` if a node with a custom text measurement function needs to be re-measured during the next layout pass.
+
+> A measure function can only be attached to a leaf node in the hierarchy.
+
+<script src="https://gist.github.com/emilsjolander/73f9118d8bd27f9cb3744c08f1e53a32.js"></script>
+
+### Context
+
+Context is important when integrating Yoga into another layout system. Context allows you to associate another object with a `YGNodeRef`. This context can then be retrieved from a `YGNodeRef` when for example its measure function is called. This is what enables Yoga to rely on the Android and iOS system implementations of text measurement in React Native.
+
+<script src="https://gist.github.com/emilsjolander/c3d23a1b880d59627e959f3447a9511b.js"></script>
+
+### Logging
+
+Yoga will by default log to stdout and stderr. You may however customize this to instead log to your own logger.
+
+<script src="https://gist.github.com/emilsjolander/b538718ffd7a55efc80845468e0f063e.js"></script>
+
+### Experiments
+
+Yoga has the concept of experiments. An experiment is a feature which is not yet stable. To enable a feature use the following functions. Once a feature has been tested and is ready to be released as a stable API we will remove its feature flag.
+
+<script src="https://gist.github.com/emilsjolander/002516a55e10947e4bdcf5484eee8745.js"></script>
+
+### Custom allocators
+
+You may want to swap out the allocator used in Yoga. These functions allow that.
+
+<script src="https://gist.github.com/emilsjolander/f45053d4f09a9faaf94a8fc071f0224f.js"></script>
+
+### Printing
+
+Yoga has some hooks to print debug information while calculating layout. With the printing APIs you can add additional information to a node when it is printed.
+
+<script src="https://gist.github.com/emilsjolander/c9fbaba914d699ecc91841f4f5515f20.js"></script>

docs/_docs/api/csharp.md

@@ -0,0 +1,53 @@
+---
+docid: csharp
+title: C#
+layout: docs
+permalink: /docs/api/csharp/
+---
+`YogaNode` is the main object you will be interfacing with when using Yoga in .NET. `YogaNode` is a thin [P/Invoke](https://msdn.microsoft.com/en-us/library/aa446536.aspx) wrapper around the core Yoga library.
+
+### Lifecycle
+
+Create a `YogaNode` via its default constructor or the static `Create()` builder method and use `Reset` if you want to pool and re-use nodes. The native memory of a `YogaNode` will automatically be freed when the node is garbage collected.
+
+<script src="https://gist.github.com/emilsjolander/ce73212ee5fdb543d463822c3dd172b4.js"></script>
+
+### Children
+
+The following methods help manage the children of a node.
+
+<script src="https://gist.github.com/emilsjolander/2b0ea738d3c24644fa98910b276620e4.js"></script>
+
+### Style getters & setters
+
+The large part of Yoga's API consists of properties, setters, and getters for styles. These all follow the same general structure. Bellow are the function and enums used to control the various styles. For an in depth guide to how each style works see the getting started guide.
+
+<script src="https://gist.github.com/emilsjolander/a84208768e0006b8421a322c40f98539.js"></script>
+
+### Layout results
+
+Once you have set up a tree of nodes with styles you will want to get the result of a layout calculation. Call `CalculateLayout()` perform layout calculation. Once this function returns the results of the layout calculation is stored on each node. Traverse the tree and retrieve the values from each node.
+
+<script src="https://gist.github.com/emilsjolander/b50acf9fc0877affeb0fc3e55b5c6b4c.js"></script>
+
+### Custom measurements
+
+Certain nodes need to ability to measure themselves, the most common example is nodes which represent text. Text has an intrinsic size and requires measuring itself to determine that size. This is not something Yoga can do as it requires relying on the host system's text rendering engine.
+
+- Call `MarkDirty()` if a node with a custom text measurement function needs to be re-measured during the next layout pass.
+
+> A measure function can only be attached to a leaf node in the hierarchy.
+
+<script src="https://gist.github.com/emilsjolander/57178307f515e5ea1ccfbedc05df429b.js"></script>
+
+### Data
+
+Data is important when integrating Yoga into another layout system. Data allows you to associate another object with a `YogaNode`. This data can then be retrieved from a `YogaNode` when for example its measure function is called. This is what enables Yoga to rely on the Android system implementations of text measurement in React Native.
+
+<script src="https://gist.github.com/emilsjolander/c099f826623d70fd6bf7dece14e76700.js"></script>
+
+### Experiments
+
+Yoga has the concept of experiments. An experiment is a feature which is not yet stable. To enable a feature use the following functions. Once a feature has been tested and is ready to be released as a stable API we will remove its feature flag.
+
+<script src="https://gist.github.com/emilsjolander/97b2500918687826cdfe9429638f2d57.js"></script>

docs/_docs/api/java.md

@@ -0,0 +1,59 @@
+---
+docid: java
+title: Java
+layout: docs
+permalink: /docs/api/java/
+---
+`YogaNode` is the main object you will be interfacing with when using Yoga in Java. `YogaNode` is a thin [JNI](https://en.wikipedia.org/wiki/Java_Native_Interface) wrapper around the core Yoga library.
+
+### Lifecycle
+
+Create a `YogaNode` via its default constructor and use `reset` if you want to pool and re-use nodes. The native memory of a `YogaNode` will automatically be freed when the node is garbage collected.
+
+<script src="https://gist.github.com/emilsjolander/8775de8c778eb99a05a38e8257f0b4a7.js"></script>
+
+### Children
+
+The following methods help manage the children of a node.
+
+<script src="https://gist.github.com/emilsjolander/5d1c64d8d3be7f7942435c4f5bec45a5.js"></script>
+
+### Style getters & setters
+
+The large part of Yoga's API consists of setters and getters for styles. These all follow the same general structure. Bellow are the function and enums used to control the various styles. For an in depth guide to how each style works see the getting started guide.
+
+<script src="https://gist.github.com/emilsjolander/f94ca2aa69441a3060a7c9f5126f202f.js"></script>
+
+### Layout results
+
+Once you have set up a tree of nodes with styles you will want to get the result of a layout calculation. Call `calculateLayout()` perform layout calculation. Once this function returns the results of the layout calculation is stored on each node. Traverse the tree and retrieve the values from each node.
+
+<script src="https://gist.github.com/emilsjolander/613a80ae11abce423a4806521e1e315b.js"></script>
+
+### Custom measurements
+
+Certain nodes need to ability to measure themselves, the most common example is nodes which represent text. Text has an intrinsic size and requires measuring itself to determine that size. This is not something Yoga can do as it requires relying on the host system's text rendering engine.
+
+- Call `dirty()` if a node with a custom text measurement function needs to be re-measured during the next layout pass.
+
+> A measure function can only be attached to a leaf node in the hierarchy.
+
+<script src="https://gist.github.com/emilsjolander/70fd958b87647abbba604956709a9026.js"></script>
+
+### Data
+
+Data is important when integrating Yoga into another layout system. Data allows you to associate another object with a `YogaNode`. This data can then be retrieved from a `YogaNode` when for example its measure function is called. This is what enables Yoga to rely on the Android system implementations of text measurement in React Native.
+
+<script src="https://gist.github.com/emilsjolander/3f10f3fa91120960b71783780f528973.js"></script>
+
+### Logging
+
+Yoga will by default log to stdout and stderr (or logcat on Android). You may however customize this to instead log to your own logger.
+
+<script src="https://gist.github.com/emilsjolander/6d012f5d48be0e98b7f9c2225c358f6e.js"></script>
+
+### Experiments
+
+Yoga has the concept of experiments. An experiment is a feature which is not yet stable. To enable a feature use the following functions. Once a feature has been tested and is ready to be released as a stable API we will remove its feature flag.
+
+<script src="https://gist.github.com/emilsjolander/97b2500918687826cdfe9429638f2d57.js"></script>

docs/_docs/api/objc.md

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+---
+docid: objc
+title: Objective-C
+layout: docs
+permalink: /docs/api/objc/
+---
+
+> The Objective-C API is very new and still in rapid development. Please use it and [report issues, bugs or feedback](https://github.com/facebook/yoga/issues). We hope to stabilize the API over the next couple weeks / months.
+
+Yoga for Objective-C is implemented as a [category](https://developer.apple.com/library/content/documentation/General/Conceptual/DevPedia-CocoaCore/Category.html) on [UIView](https://developer.apple.com/reference/uikit/uiview). We try to rely on the existing `UIView` properties and initializers where possible, making the Yoga API smaller for Objective-C than for other languages.
+
+### Lifecycle
+
+As with any `UIView` instantiate it using `-(instancetype)initWithFrame:(CGRect)frame`. With Yoga for Objective-C the frame is actually how you set the width and the height of the Yoga node, just like any other `UIView`.
+
+Because Yoga is implemented as a category we need some way to mark the view as using Yoga as you might not want Yoga to control layout of your whole app, this is especially important if you are migrating an existing app to use Yoga. The property decides during layout/sizing whether or not `yg_*` properties should be applied. Defaults to `NO`.
+
+<script src="https://gist.github.com/emilsjolander/b95467f51b945e906d39b66e44999806.js"></script>
+
+### Children
+
+Yoga relies on `UIView` subviews to build up its internal layout tree. However using properties such as `yg_includeInLayout` a View can exclude itself from layout. Therefor we provide the following method to query the number of children which are laid out using Yoga.
+
+<script src="https://gist.github.com/emilsjolander/253d69b12bef2ee1ec899ace81b768a6.js"></script>
+
+### Style setters
+
+The large part of Yoga's API consists of setters for styles. These all follow the same general structure. Bellow are the function and enums used to control the various styles. For an in depth guide to how each style works see the getting started guide.
+
+<script src="https://gist.github.com/emilsjolander/e7c7732b9465173335d2e019a6bc5941.js"></script>
+
+### Layout
+- `yg_includeInLayout` decides if we should include this view when calculating layout. Defaults to `YES`.
+- `yg_intrinsicSize` returns the size of the view if no constraints were given. This is equivalent to calling `[view sizeThatFits:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX)]`.
+- `yg_applyLayout` performs layout calculation and update the frames of the views in the hierarchy with the results.
+- `yg_resolvedDirection` returns the resolved layout direction of this view. Either `YGDirectionRTL` or `YGDirectionLTR`.
+
+<script src="https://gist.github.com/emilsjolander/437661e872c1f9106b728419d5ea49e9.js"></script>

docs/_docs/flexbox/absolute-position.md

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+---
+docid: absolute-position
+title: Absolute positioning
+layout: docs
+permalink: /docs/absolute-position/
+---
+
+The `Position` property tells Flexbox how you want your item to be positioned within its parent. There are 2 options:
+
+* `Relative` (default)
+* `Absolute`
+
+An item marked with `Position = Absolute` is positioned absolutely in regards to its parent. This is done through 6 properties:
+
+* `Left` - controls the distance a child's left edge is from the parent's left edge
+* `Top` - controls the distance a child's top edge is from the parent's top edge
+* `Right` - controls the distance a child's right edge is from the parent's right edge
+* `Bottom` - controls the distance a child's bottom edge is from the parent's bottom edge
+* `Start` - controls the distance a child's start edge is from the parent's start edge
+* `End` - controls the distance a child's end edge is from the parent's end edge
+
+Using these options you can control the size and position of an absolute item within its parent. Because absolutely positioned children don't effect their siblings layout `Position = Absolute` can be used to create overlays and stack children in the Z axis.
+
+#### Position = Absolute; Start = 0; Top = 0; Width = 50; Height = 50;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; left: 0px; top: 0px; position: absolute;"></div>
+  </div>
+</div>
+
+#### Position = Absolute; Start = 10; Top = 10; End = 10; Bottom = 10;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; left: 10px; top: 10px; bottom: 10px; right: 10px; position: absolute;"></div>
+  </div>
+</div>

docs/_docs/flexbox/alignment.md

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+---
+docid: alignment
+title: Alignment
+layout: docs
+permalink: /docs/alignment/
+---
+
+### AlignItems
+
+The `AlignItems` property describes how to align children along the cross axis of their container. `AlignItems` is very similar to `JustifyContent` but instead of applying to the main axis, it applies to the cross axis. There are 4 options for `AlignItems`:
+
+* `Stretch` (default)
+* `FlexStart`
+* `FlexEnd`
+* `Center`
+
+The only non-obvious option of the four is `Stretch`. With `AlignItems = Stretch` you instruct children to match the size of their container in the cross axis.
+
+#### AlignItems = Stretch
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; height: 200px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; "></div>
+  </div>
+</div>
+
+#### AlignItems = FlexStart
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; height: 200px; align-items: flex-start;">
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; "></div>
+  </div>
+</div>
+
+#### AlignItems = FlexEnd
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; height: 200px; align-items: flex-end;">
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; "></div>
+  </div>
+</div>
+
+#### AlignItems = Center
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; height: 200px; align-items: center;">
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; "></div>
+  </div>
+</div>
+
+### AlignSelf
+
+The `AlignSelf` property has the same options and effect as `AlignItems` but instead of affecting the children within a container, you can apply this property to a single child to change its alignment within its parent.
+
+This property overrides any option set by the parent via the `AlignItems` property.
+
+#### AlignItems = FlexEnd; AlignSelf = FlexStart;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; height: 200px; align-items: flex-end;">
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; height: 50px; width: 50px; align-self: flex-start;"></div>
+  </div>
+</div>
+
+### AlignContent
+
+The `AlignContent` property is used to control how multiple lines of content are aligned within a container which uses `FlexWrap = wrap`. There are 6 options:
+
+* `FlexStart` (default)
+* `FlexEnd`
+* `Center`
+* `Stretch`
+* `SpaceBetween`
+* `SpaceAround`
+
+#### AlignContent = FlexEnd
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 300px; flex-wrap: wrap; height: 300px; align-content: flex-end;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>

docs/_docs/flexbox/flex-direction.md

@@ -0,0 +1,47 @@
+---
+docid: flex-direction
+title: Flex direction
+layout: docs
+permalink: /docs/flex-direction/
+---
+
+The `FlexDirection` property controls the direction in which children are laid out. There are 4 options, of which 2 are commonly used:
+
+* `Column` (default)
+* `Row`
+* `ColumnReverse`
+* `RowReverse`
+
+The `Column` option stacks children horizontally from top to bottom, and the `Row` option stacks children from left to right. The `Reverse` variants of the options reverse the order. If your layout supports right-to-left direction, Yoga will automatically toggle between `Row` and `RowReverse` as necessary.
+
+`FlexDirection` introduces another important aspect of Flexbox, the main and cross axes. This is important as other properties will reference which axis they operate on. Simply put, the main axis follows the `FlexDirection` and the cross axis crosses the main axis at a 90 degree angle.
+
+#### FlexDirection = Row
+
+In this example the main axis goes from the left to the right. The cross axis goes from the top to the bottom.
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>
+
+#### FlexDirection = Column
+
+In this example the main axis goes from the top to the bottom. The cross axis goes from the left to the right.
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>

docs/_docs/flexbox/flex-wrap.md

@@ -0,0 +1,39 @@
+---
+docid: flex-wrap
+title: Flex wrap
+layout: docs
+permalink: /docs/flex-wrap/
+---
+
+The `FlexWrap` property is set on containers and controls what happens when children overflow the size of the container along the main axis. There are 2 options:
+
+* `Nowrap` (default)
+* `Wrap`
+
+If a container specifies `FlexWrap = Wrap` then its children will wrap to the next line instead of overflowing. The next line will have the same `FlexDirection` as the first line and will appear next to the first line along the cross axis -- below it if using `FlexDirection = Column` and to the right if using `FlexDirection = Row`.
+
+#### FlexWrap = Nowrap
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 300px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>
+
+#### FlexWrap = Wrap
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 300px; flex-wrap: wrap;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; margin-bottom: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>

docs/_docs/flexbox/flex.md

@@ -0,0 +1,100 @@
+---
+docid: flex
+title: Flex
+layout: docs
+permalink: /docs/flex/
+---
+
+### FlexGrow
+
+The `FlexGrow` property describes how any space within a container should be distributed among its children along the main axis. After laying out its children, a container will distribute any remaining space according to the `FlexGrow` values specified by its children.
+
+`FlexGrow` accepts any floating point value >= 0, with 0 being the default value. A container will distribute any remaining space among its children weighted by the child's `FlexGrow` value.
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; flex-grow: 1;">
+      <span><span>FlexGrow = 1</span></span>
+    </div>
+  </div>
+</div>
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; flex-grow: 1;">
+      <span><span>FlexGrow = 1</span></span>
+    </div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; flex-grow: 1;">
+      <span><span>FlexGrow = 1</span></span>
+    </div>
+  </div>
+</div>
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px; flex-grow: 1;">
+      <span><span>FlexGrow = 1</span></span>
+    </div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; flex-grow: 2;">
+      <span><span>FlexGrow = 2</span></span>
+    </div>
+  </div>
+</div>
+
+### FlexShrink
+
+The `FlexShrink` property describes how to shrink children along the main axis in the case that the total size of the children overflow the size of the container on the main axis.
+
+`FlexShrink` is very similar to `FlexGrow` and can be thought of in the same way if any overflowing size is considered to be negative remaining space. These two properties also work well together by allowing children to grow and shrink as needed.
+
+`FlexShrink` accepts any floating point value >= 0, with 0 being the default value. A container will shrink its children weighted by the child's `FlexShrink` value.
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px;"></div>
+  </div>
+</div>
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px; flex-shrink: 1;">
+      <span><span>FlexShrink = 1</span></span>
+    </div>
+  </div>
+</div>
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px; margin-right: 20px; flex-shrink: 1;">
+      <span><span>FlexShrink = 1</span></span>
+    </div>
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px; flex-shrink: 1;">
+      <span><span>FlexShrink = 1</span></span>
+    </div>
+  </div>
+</div>
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px; margin-right: 20px; flex-shrink: 1;">
+      <span><span>FlexShrink = 1</span></span>
+    </div>
+    <div class="yoga" style="background-color: #303846; width: 300px; height: 50px; flex-shrink: 2;">
+      <span><span>FlexShrink = 2</span></span>
+    </div>
+  </div>
+</div>
+
+### FlexBasis
+
+The `FlexBasis` property is an axis-independent way of providing the default size of an item on the main axis. Setting the `FlexBasis` of a child is similar to setting the `Width` of that child if its parent is a container with `FlexDirection = row` or setting the `Height` of a child if its parent is a container with `FlexDirection = column`. The `FlexBasis` of an item is the default size of that item, the size of the item before any `FlexGrow` and `FlexShrink` calculations are performed.

docs/_docs/flexbox/justify-content.md

@@ -0,0 +1,61 @@
+---
+docid: justify-content
+title: Justify content
+layout: docs
+permalink: /docs/justify-content/
+---
+
+The `JustifyContent` property describes how to align children within the main axis of a container. For example, you can use this property to center a child horizontally within a container with `FlexDirection = Row` or vertically within a container with `FlexDirection = Column`.
+
+`JustifyContent` accepts 1 of the following 5 options:
+
+* `FlexStart` (default)
+* `FlexEnd`
+* `Center`
+* `SpaceBetween`
+* `SpaceAround`
+
+#### JustifyContent = FlexStart
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>
+
+#### JustifyContent = FlexEnd
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; justify-content: flex-end;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>
+
+#### JustifyContent = Center
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; justify-content: center;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>
+
+#### JustifyContent = SpaceBetween
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; justify-content: space-between;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>
+
+#### JustifyContent = SpaceAround
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; justify-content: space-around;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px;"></div>
+  </div>
+</div>

docs/_docs/flexbox/margin-padding-border.md

@@ -0,0 +1,58 @@
+---
+docid: margin-padding-border
+title: Margin, Padding, Border
+layout: docs
+permalink: /docs/margin-padding-border/
+---
+
+`Margin`, `Padding` are similar but have some important differences. By applying `Margin` to an item you specify the offset a certain edge of the item should have from it's closest sibling or parent. With `Padding` on the other hand you specify the offset children should have from a certain edge on the parent. `Border` behaves nearly identically to `Padding` and is only separate from `Padding` to make it easier to implement border effect such as color. In the below illustrations the green box is a child of the dark gray box.
+
+#### MarginStart = 50;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; flex: 1; margin-left: 50px;">
+      <div style="width: 50px; height: 50px; background-color: #97dccf;"></div>
+    </div>
+  </div>
+</div>
+
+#### MarginEnd = 50;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; flex: 1; margin-right: 50px;">
+      <div style="width: 50px; height: 50px; background-color: #97dccf;"></div>
+    </div>
+  </div>
+</div>
+
+#### MarginAll = 50;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; flex: 1; margin: 50px;">
+      <div style="width: 50px; height: 50px; background-color: #97dccf;"></div>
+    </div>
+  </div>
+</div>
+
+#### PaddingAll = 50;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; flex: 1; padding: 50px;">
+      <div style="width: 50px; height: 50px; background-color: #97dccf;"></div>
+    </div>
+  </div>
+</div>
+
+#### BorderWidth = 50;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; flex: 1; border-width: 50px; border-color: transparent;">
+      <div style="width: 50px; height: 50px; background-color: #97dccf;"></div>
+    </div>
+  </div>
+</div>

docs/_docs/flexbox/minmaxdimen.md

@@ -0,0 +1,34 @@
+---
+docid: min-max-dimen
+title: Min & Max dimensions
+layout: docs
+permalink: /docs/min-max-dimen/
+---
+
+Using `MinWidth`, `MinHeight`, `MaxWidth`, and `MaxHeight` gives you increased control over the final size of items in a layout. By mixing these properties with `FlexGrow`, `FlexShrink`, and `AlignItems = Stretch`, you are able to have items with dynamic size within a range which you control.
+
+An example of when `Max` properties can be useful is if you are using `AlignItems = Stretch` but your know that your item won't look good after it increases past a certain point. In this case, your item will stretch to the size of its parent or until it is as big as specified in the `Max` property.
+
+Same goes for the `Min` properties when using `FlexShrink`. For example, you may want children of a container to shrink to fit on one row, but if you specify a minimum width, they will break to the next line after a certain point (if you are using `FlexWrap = Wrap`).
+
+Another case where `Min` and `Max` dimension constraints are useful is when using `AspectRatio`.
+
+#### FlexGrow = 1; MaxWidth = 200;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; height: 50px; flex-grow: 1; max-width: 200px;">
+      <span><span>FlexGrow = 1</span></span>
+    </div>
+  </div>
+</div>
+
+#### AlignItems = Stretch; MaxHeight: 100;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; padding: 20px; flex-direction: row; width: 500px; height: 200px;">
+    <div class="yoga" style="background-color: #303846; width: 50px; margin-right: 20px;"></div>
+    <div class="yoga" style="background-color: #303846; width: 50px; max-height: 100px;"></div>
+  </div>
+</div>

docs/_docs/getting-started.md

@@ -0,0 +1,28 @@
+---
+docid: getting-started
+title: Getting Started
+layout: docs
+permalink: /docs/getting-started/
+---
+
+## Installation
+
+Installation of Yoga is currently a manual process. We have plans on bringing Yoga to the many available package management systems (e.g., [Yarn](https://yarnpkg.com/), [Gradle](https://gradle.org/), [Cocoapods](https://cocoapods.org/)), but we do not have a target date at this time. We would greatly appreciate [community contributions here](https://github.com/facebook/yoga/pulls).
+
+### Getting the Code
+
+For now we recommend including Yoga as a [git submodule](https://git-scm.com/docs/git-submodule) in your project. Once done, you can either build Yoga using Buck (detailed [below](#building-with-buck)) or integrate it into your existing build system by including the C library from the [root `yoga` directory](https://github.com/facebook/yoga/tree/master/yoga) as well as the [language bindings](https://github.com/facebook/yoga) (e.g., Java, C#) you wish to use.
+
+### Running the Example
+
+Yoga ships with an [iOS example](https://github.com/facebook/yoga/tree/master/YogaKit/YogaKitSample). To get it running:
+
+<script src="https://gist.github.com/emilsjolander/903b16185b24c957acc4cd250c6e73d9.js"></script>
+
+### Building with Buck
+
+Yoga uses [Buck](https://buckbuild.com/) as its build system. Buck is not required for using Yoga, but, if you already use Buck, then integrating Yoga is very simple.
+
+If you are using Buck all you need to do is reference the language bindings you want to use in your `BUCK` file.
+
+<script src="https://gist.github.com/emilsjolander/895b4ec79425882b8d4676b6545d6943.js"></script>

docs/_docs/learn-more.md

@@ -0,0 +1,42 @@
+---
+docid: learn-more
+title: Learn More
+layout: docs
+permalink: /docs/learn-more/
+---
+
+Yoga is an open-source, cross-platform layout library that implements Flexbox. Yoga's focus is on creating an expressive ***layout*** library, not implementing all of CSS. Therefore, there are no plans to include support for tables, floats, or similar CSS concepts. Yoga also does not support styling properties that have no impact on layout, such as color or background properties.
+
+### Yoga vs Flexbox
+
+Yoga aims to be compatible with Flexbox according to the [w3 specification](https://www.w3.org/TR/css3-flexbox). However, Yoga was not developed to strictly adhere to the specification; thus, there are aspects where Yoga differs.
+
+#### Default values
+
+Yoga has chosen to change the default values of some properties to better fit mobile layout use cases. The following CSS block describes the differences in default values from the [Flexbox w3 specification](https://www.w3.org/TR/css3-flexbox).
+
+<script src="https://gist.github.com/emilsjolander/f9b3981cab44c51afa9ac446b8fdb60c.js"></script>
+
+We have set up a [JSFiddle](https://jsfiddle.net/emilsjolander/jckmwztt/) so you can see these default values in action.
+
+#### Right-to-Left
+
+We believe that Right-to-Left (RTL) should be a first class citizen when it comes to layout. Therefore, Yoga implements non-standard RTL support for margin, padding, border, and position properties. This enables specifying these properties as `start` instead of `left` and `end` instead of `right`.
+
+<div class="pluginWrapper buttonWrapper">
+  <a
+    class="button"
+    href="/yoga/docs/rtl/"
+  >Learn More about RTL</a>
+</div>
+
+#### Yoga-specific properties
+
+The goal of Yoga is to be a library which makes layout easy. Of course, implementing Flexbox, a common and well-liked system, helps meet this goal. However, there are areas where we think Yoga can evolve beyond Flexbox and provide developers with tools not included in the [Flexbox w3 specification](https://www.w3.org/TR/css3-flexbox). Currently Yoga has added one such property, `AspectRatio`, to solve a common problem we saw in many UIs.
+
+<div class="pluginWrapper buttonWrapper">
+  <a
+    class="button"
+    href="/yoga/docs/aspect-ratio/"
+  >Learn More about Aspect Ratio</a>
+</div>

docs/_docs/yoga/aspect-ratio.md

@@ -0,0 +1,47 @@
+---
+docid: aspect-ratio
+title: Aspect ratio
+layout: docs
+permalink: /docs/aspect-ratio/
+---
+
+`AspectRatio` is a property introduced by Yoga. `AspectRatio` solves the problem of knowing one dimension of an element and an aspect ratio, this is very common when it comes to videos, images, and other media types. `AspectRatio` accepts any floating point value > 0, the default is undefined. `AspectRatio` can apply to either the width or the height of an item, it depends on which dimension is fixed. `AspectRatio` Also respects the `Min` and `Max` dimensions of an item.
+
+- If an item has a `Width` set then `AspectRatio` controls the item's height.
+- If an item has a `Height` set then `AspectRatio` controls the item's width.
+- If an item has a `FlexBasis` set then `AspectRatio` controls the item's cross axis dimension.
+- If an item's alignment is `Stretch` and its main axis is undefined then `AspectRatio` controls the item's main axis dimension.
+- If an item has `FlexGrow` or `FlexShrink` set then `AspectRatio` controls the item's cross axis dimension if it is undefined.
+- If both dimensions of an item are fixed then `AspectRatio` is ignored.
+
+#### Width = 100; AspectRatio = 2;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; width: 100px; height: 200px;"></div>
+  </div>
+</div>
+
+#### Width = 100; AspectRatio = 0.5;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px;">
+    <div class="yoga" style="background-color: #303846; width: 100px; height: 50px;"></div>
+  </div>
+</div>
+
+#### FlexDirection = Row; FlexGrow = 1; AspectRatio = 0.5;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px; flex-direction: row;">
+    <div class="yoga" style="background-color: #303846; flex-grow: 1; height: 150px;"></div>
+  </div>
+</div>
+
+#### FlexDirection = Row; AlignItems = Stretch; AspectRatio = 0.5;
+
+<div class="yoga" style="align-items: flex-start;">
+  <div class="yoga sample" style="background-color: white; width: 300px; height: 300px; flex-direction: row;">
+    <div class="yoga" style="background-color: #303846; width: 150px;"></div>
+  </div>
+</div>

docs/_docs/yoga/rtl.md

@@ -0,0 +1,15 @@
+---
+docid: rtl
+title: RTL
+layout: docs
+permalink: /docs/rtl/
+---
+
+The web has limited support for Right-to-Left (RTL) layouts. It does a pretty good job when it comes to text alignment and text rendering, but lacks the features needed to build fully RTL compatible UIs. Therefore, Yoga has adopted `Start` and `End` values for `Margin`, `Padding`, `Border`, and `Position` properties.
+
+
+## Direction
+
+With `Start` and `End`, you can specify these properties in your UI without having to think about whether your item will show up on the left or the right side of the screen (depending on the person's language setting). Yoga automatically handles this for you.
+
+The `Direction` property controls this behavior. `Direction` defaults to `Inherit` on all nodes except the root which defaults to `LTR`. It is up to you to detect the user's preferred direction (most platforms have a standard way of doing this) and setting this direction on the root of your layout tree.

docs/_includes/blog_pagination.html

@@ -0,0 +1,28 @@
+<!-- Pagination links - copied from http://jekyllrb.com/docs/pagination/ -->
+{% if paginator.total_pages > 1 %}
+<br />
+<div class="pagination">
+  {% if paginator.previous_page %}
+    <a href="{{ paginator.previous_page_path | relative_url | replace: '//', '/' }}">&laquo; Prev</a>
+  {% else %}
+    <span>&laquo; Prev</span>
+  {% endif %}
+
+  {% for page in (1..paginator.total_pages) %}
+    {% if page == paginator.page %}
+      <em>{{ page }}</em>
+    {% elsif page == 1 %}
+      <a href="{{ '/blog' | relative_url }}">{{ page }}</a>
+    {% else %}
+      <a href="{{ site.paginate_path | relative_url | replace: '//', '/' | replace: ':num', page }}">{{ page }}</a>
+    {% endif %}
+  {% endfor %}
+
+  {% if paginator.next_page %}
+    <a href="{{ paginator.next_page_path | relative_url | replace: '//', '/' }}">Next &raquo;</a>
+  {% else %}
+    <span>Next &raquo;</span>
+  {% endif %}
+</div>
+<br />
+{% endif %}

docs/_includes/content/gridblocks.html

@@ -0,0 +1,5 @@
+<div class="gridBlock">
+{% for item in {{include.data_source}} %}
+  {% include content/items/gridblock.html item=item layout=include.layout imagealign=include.imagealign align=include.align %}
+{% endfor %}
+</div>

docs/_includes/content/items/gridblock.html

@@ -0,0 +1,37 @@
+{% if include.layout == "fourColumn" %}
+  {% assign layout = "fourByGridBlock" %}
+{% else %}
+  {% assign layout = "twoByGridBlock" %}
+{% endif %}
+
+{% if include.imagealign == "side" %}
+  {% assign imagealign = "imageAlignSide" %}
+{% else %}
+  {% if item.image %}
+    {% assign imagealign = "imageAlignTop" %}
+  {% else %}
+    {% assign imagealign = "" %}
+  {% endif %}
+{% endif %}
+
+{% if include.align == "right" %}
+  {% assign align = "alignRight" %}
+{% elsif include.align == "center" %}
+  {% assign align = "alignCenter" %}
+{% else %}
+  {% assign align = "alignLeft" %}
+{% endif %}
+
+<div class="blockElement {{ layout }} {{ imagealign }} {{ align }}">
+  {% if item.image %}
+  <div class="blockImage">
+    <img src="/static/{{ item.image }}" alt="{{ item.title }}" title="{{ item.title }}" />
+  </div>
+  {% endif %}
+  <div class="blockContent">
+    <h3>{{ item.title }}</h3>
+    {% if item.text %}
+    {{ item.text | markdownify }}
+    {% endif %}
+  </div>
+</div>

docs/_includes/doc.html

@@ -0,0 +1,25 @@
+<div class="post">
+  <header class="post-header">
+    <h1 class="post-title">{% if include.truncate %}<a href="{{ page.url | absolute_url }}">{{ page.title }}</a>{% else %}{{ page.title }}{% endif %}</h1>
+  </header>
+
+  <article class="post-content">
+   {% if include.truncate %}
+      {% if page.content contains '<!--truncate-->' %}
+        {{ page.content | split:'<!--truncate-->' | first }}
+        <div class="read-more">
+          <a href="{{ page.url | absolute_url }}" >
+            ...Read More
+          </a>
+        </div>
+      {% else %}
+        {{ page.content }}
+      {% endif %}
+    {% else %}
+      {{ content }}
+
+
+    {% endif %}
+  </article>
+  {% include doc_paging.html %}
+</div>

docs/_includes/footer.html

@@ -0,0 +1,33 @@
+<div class="footerContainer">
+  <div id="footer_wrap" class="wrapper footerWrapper">
+    <div class="footerBlocks">
+      <div id="fb_oss" class="footerSection fbOpenSourceFooter">
+          <svg class="facebookOSSLogoSvg" viewBox="0 0 1133.9 1133.9" x="0px" y="0px">
+            <g>
+              <path class="logoRing outerRing" d="M 498.3 3.7 c 153.6 88.9 307.3 177.7 461.1 266.2 c 7.6 4.4 10.3 9.1 10.3 17.8 c -0.3 179.1 -0.2 358.3 0 537.4 c 0 8.1 -2.4 12.8 -9.7 17.1 c -154.5 88.9 -308.8 178.1 -462.9 267.5 c -9 5.2 -15.5 5.3 -24.6 0.1 c -153.9 -89.2 -307.9 -178 -462.1 -266.8 C 3 838.8 0 833.9 0 825.1 c 0.3 -179.1 0.2 -358.3 0 -537.4 c 0 -8.6 2.6 -13.6 10.2 -18 C 164.4 180.9 318.4 92 472.4 3 C 477 -1.5 494.3 -0.7 498.3 3.7 Z M 48.8 555.3 c 0 79.9 0.2 159.9 -0.2 239.8 c -0.1 10 3 15.6 11.7 20.6 c 137.2 78.8 274.2 157.8 411 237.3 c 9.9 5.7 17 5.7 26.8 0.1 c 137.5 -79.8 275.2 -159.2 412.9 -238.5 c 7.4 -4.3 10.5 -8.9 10.5 -17.8 c -0.3 -160.2 -0.3 -320.5 0 -480.7 c 0 -8.8 -2.8 -13.6 -10.3 -18 C 772.1 218 633.1 137.8 494.2 57.4 c -6.5 -3.8 -11.5 -4.5 -18.5 -0.5 C 336.8 137.4 197.9 217.7 58.8 297.7 c -7.7 4.4 -10.2 9.2 -10.2 17.9 C 48.9 395.5 48.8 475.4 48.8 555.3 Z" />
+              <path class="logoRing middleRing" d="M 184.4 555.9 c 0 -33.3 -1 -66.7 0.3 -100 c 1.9 -48 24.1 -86 64.7 -110.9 c 54.8 -33.6 110.7 -65.5 167 -96.6 c 45.7 -25.2 92.9 -24.7 138.6 1 c 54.4 30.6 108.7 61.5 162.2 93.7 c 44 26.5 67.3 66.8 68 118.4 c 0.9 63.2 0.9 126.5 0 189.7 c -0.7 50.6 -23.4 90.7 -66.6 116.9 c -55 33.4 -110.8 65.4 -167.1 96.5 c -43.4 24 -89 24.2 -132.3 0.5 c -57.5 -31.3 -114.2 -64 -170 -98.3 c -41 -25.1 -62.9 -63.7 -64.5 -112.2 C 183.5 621.9 184.3 588.9 184.4 555.9 Z M 232.9 556.3 c 0 29.5 0.5 59.1 -0.1 88.6 c -0.8 39.2 16.9 67.1 50.2 86.2 c 51.2 29.4 102.2 59.2 153.4 88.4 c 31.4 17.9 63.6 18.3 95 0.6 c 53.7 -30.3 107.1 -61.2 160.3 -92.5 c 29.7 -17.5 45 -44.5 45.3 -78.8 c 0.6 -61.7 0.5 -123.5 0 -185.2 c -0.3 -34.4 -15.3 -61.5 -44.9 -79 C 637.7 352.6 583 320.8 527.9 290 c -27.5 -15.4 -57.2 -16.1 -84.7 -0.7 c -56.9 31.6 -113.4 64 -169.1 97.6 c -26.4 15.9 -40.7 41.3 -41.1 72.9 C 232.6 491.9 232.9 524.1 232.9 556.3 Z" />
+              <path class="logoRing innerRing" d="M 484.9 424.4 c 69.8 -2.8 133.2 57.8 132.6 132 C 617 630 558.5 688.7 484.9 689.1 c -75.1 0.4 -132.6 -63.6 -132.7 -132.7 C 352.1 485 413.4 421.5 484.9 424.4 Z M 401.3 556.7 c -3.4 37.2 30.5 83.6 83 84.1 c 46.6 0.4 84.8 -37.6 84.9 -84 c 0.1 -46.6 -37.2 -84.4 -84.2 -84.6 C 432.2 472.1 397.9 518.3 401.3 556.7 Z" />
+            </g>
+          </svg>
+        <h2>Facebook Open Source</h2>
+      </div>
+      <div class="footerSection">
+        <a class="footerLink" href="https://code.facebook.com/projects/" target="_blank">Open Source Projects</a>
+        <a class="footerLink" href="https://github.com/facebook/" target="_blank">GitHub</a>
+        <a class="footerLink" href="https://twitter.com/fbOpenSource" target="_blank">Twitter</a>
+      </div>
+      <div class="footerSection rightAlign">
+        <a class="footerLink" href="https://github.com/{{ site.ghrepo }}" target="_blank">Contribute to this project on GitHub</a>
+      </div>
+    </div>
+  </div>
+</div>
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', '{{ site.gacode }}', 'auto');
+  ga('send', 'pageview');
+</script>

docs/_includes/head.html

@@ -0,0 +1,23 @@
+<head>
+  <meta charset="utf-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+
+  <meta property="og:url" content="{{ page.url | replace:'index.html','' | absolute_url }}" />
+  <meta property="og:site_name" content="{{ site.title }}"/>
+  <meta property="og:title" content="{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}" />
+  <meta property="og:image" content="{{ 'static/og_image.png' | absolute_url }}" />
+  <meta property="og:description" content="{% if page.excerpt %}{{ page.excerpt | strip_html | strip_newlines | truncate: 160 }}{% else %}{{ site.description }}{% endif %}" />
+
+  <link rel="stylesheet" href="{{ '/css/main.css' | relative_url }}" media="screen">
+  <link rel="icon" href="{{ '/static/favicon.png' | relative_url }}" type="image/x-icon">
+  {% if site.searchconfig %}
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css" />
+  {% endif %}
+
+  <title>{% if page.title %}{{ page.title }} | {{ site.title }}{% else %}{{ site.title }}{% endif %}</title>
+  <meta name="description" content="{% if page.excerpt %}{{ page.excerpt | strip_html | strip_newlines | truncate: 160 }}{% else %}{{ site.description }}{% endif %}">
+
+  <link rel="canonical" href="{{ page.url | replace:'index.html','' | absolute_url }}">
+  <link rel="alternate" type="application/rss+xml" title="{{ site.title }}" href="{{ '/feed.xml' | absolute_url }}" />
+</head>

docs/_includes/header.html

@@ -0,0 +1,19 @@
+<div class="headerContainer">
+  <div id="header_wrap" class="wrapper headerWrapper">
+    <div class="inner">
+      <img class="projectLogo" src="{{ '/static/logo.svg' | relative_url }}" alt="{{ site.title }}" title="{{ site.title }}" />
+      <h1 id="project_title">{{ site.title }}</h1>
+      <h2 id="project_tagline" class="fbossFontLight">{{ site.tagline }}</h2>
+
+      <section id="intro">
+        <p>{% if page.excerpt %}{{ page.excerpt | strip_html }}{% else %}{{ site.description }}{% endif %}</p>
+      </section>
+      <div id="promo" class="section promoSection">
+        {% for promo in site.data.promo %}
+          {% include plugins/{{promo.type}}.html button_href=promo.href button_text=promo.text %}
+          <div class="gridClear"></div>
+        {% endfor %}
+      </div>
+    </div>
+  </div>
+</div>

docs/_includes/home_header.html

@@ -0,0 +1,31 @@
+<div class="homeContainer">
+  <div class="homeSplashFade">
+    <div id="home_wrap" class="wrapper homeWrapper">
+      <div id="inner">
+        <h2 id="project_tagline">{{ site.tagline }}</h2>
+        <section id="intro">
+          <!--<p>{% if page.excerpt %}{{ page.excerpt | strip_html }}{% else %}{{ site.description }}{% endif %}</p>-->
+          <p>
+            Yoga is a cross-platform layout engine enabling maximum collaboration within your team by implementing an API familiar to many designers and opening it up to developers across different platforms.
+          </p>
+          <ul>
+            <li>Do you already know Flexbox? Then you already know Yoga.</li>
+            <li>Write code in a language familiar to you - Java, C#, Objective-C, C.</li>
+            <li>C under the hood so your code moves fast.</li>
+            <li>Battle tested in popular frameworks like React Native.</li>
+          </ul>
+        </section>
+        <div id="promo" class="section promoSection">
+          {% for promo in site.data.promo %}
+            <div class="promoRow">
+            {% include plugins/{{promo.type}}.html href=promo.href text=promo.text children=promo.children %}
+            </div>
+          {% endfor %}
+        </div>
+      </div>
+      <div class="projectLogo">
+        <img src="{{ '/static/logo.svg' | relative_url }}" alt="{{ site.title }}">
+      </div>
+    </div>
+  </div>
+</div>

docs/_includes/katex_import.html

@@ -0,0 +1,3 @@
+<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
+<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/KaTeX/0.2.0/katex.min.css">
+<script src="//cdnjs.cloudflare.com/ajax/libs/KaTeX/0.2.0/katex.min.js"></script>

docs/_includes/katex_render.html

@@ -0,0 +1,210 @@
+<script type="text/javascript">
+/* global katex */
+
+var findEndOfMath = function(delimiter, text, startIndex) {
+    // Adapted from
+    // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
+    var index = startIndex;
+    var braceLevel = 0;
+
+    var delimLength = delimiter.length;
+
+    while (index < text.length) {
+        var character = text[index];
+
+        if (braceLevel <= 0 &&
+            text.slice(index, index + delimLength) === delimiter) {
+            return index;
+        } else if (character === "\\") {
+            index++;
+        } else if (character === "{") {
+            braceLevel++;
+        } else if (character === "}") {
+            braceLevel--;
+        }
+
+        index++;
+    }
+
+    return -1;
+};
+
+var splitAtDelimiters = function(startData, leftDelim, rightDelim, display) {
+    var finalData = [];
+
+    for (var i = 0; i < startData.length; i++) {
+        if (startData[i].type === "text") {
+            var text = startData[i].data;
+
+            var lookingForLeft = true;
+            var currIndex = 0;
+            var nextIndex;
+
+            nextIndex = text.indexOf(leftDelim);
+            if (nextIndex !== -1) {
+                currIndex = nextIndex;
+                finalData.push({
+                    type: "text",
+                    data: text.slice(0, currIndex)
+                });
+                lookingForLeft = false;
+            }
+
+            while (true) {
+                if (lookingForLeft) {
+                    nextIndex = text.indexOf(leftDelim, currIndex);
+                    if (nextIndex === -1) {
+                        break;
+                    }
+
+                    finalData.push({
+                        type: "text",
+                        data: text.slice(currIndex, nextIndex)
+                    });
+
+                    currIndex = nextIndex;
+                } else {
+                    nextIndex = findEndOfMath(
+                        rightDelim,
+                        text,
+                        currIndex + leftDelim.length);
+                    if (nextIndex === -1) {
+                        break;
+                    }
+
+                    finalData.push({
+                        type: "math",
+                        data: text.slice(
+                            currIndex + leftDelim.length,
+                            nextIndex),
+                        rawData: text.slice(
+                            currIndex,
+                            nextIndex + rightDelim.length),
+                        display: display
+                    });
+
+                    currIndex = nextIndex + rightDelim.length;
+                }
+
+                lookingForLeft = !lookingForLeft;
+            }
+
+            finalData.push({
+                type: "text",
+                data: text.slice(currIndex)
+            });
+        } else {
+            finalData.push(startData[i]);
+        }
+    }
+
+    return finalData;
+};
+
+var splitWithDelimiters = function(text, delimiters) {
+    var data = [{type: "text", data: text}];
+    for (var i = 0; i < delimiters.length; i++) {
+        var delimiter = delimiters[i];
+        data = splitAtDelimiters(
+            data, delimiter.left, delimiter.right,
+            delimiter.display || false);
+    }
+    return data;
+};
+
+var renderMathInText = function(text, delimiters) {
+    var data = splitWithDelimiters(text, delimiters);
+
+    var fragment = document.createDocumentFragment();
+
+    for (var i = 0; i < data.length; i++) {
+        if (data[i].type === "text") {
+            fragment.appendChild(document.createTextNode(data[i].data));
+        } else {
+            var span = document.createElement("span");
+            var math = data[i].data;
+            try {
+                katex.render(math, span, {
+                    displayMode: data[i].display
+                });
+            } catch (e) {
+                if (!(e instanceof katex.ParseError)) {
+                    throw e;
+                }
+                console.error(
+                    "KaTeX auto-render: Failed to parse `" + data[i].data +
+                    "` with ",
+                    e
+                );
+                fragment.appendChild(document.createTextNode(data[i].rawData));
+                continue;
+            }
+            fragment.appendChild(span);
+        }
+    }
+
+    return fragment;
+};
+
+var renderElem = function(elem, delimiters, ignoredTags) {
+    for (var i = 0; i < elem.childNodes.length; i++) {
+        var childNode = elem.childNodes[i];
+        if (childNode.nodeType === 3) {
+            // Text node
+            var frag = renderMathInText(childNode.textContent, delimiters);
+            i += frag.childNodes.length - 1;
+            elem.replaceChild(frag, childNode);
+        } else if (childNode.nodeType === 1) {
+            // Element node
+            var shouldRender = ignoredTags.indexOf(
+                childNode.nodeName.toLowerCase()) === -1;
+
+            if (shouldRender) {
+                renderElem(childNode, delimiters, ignoredTags);
+            }
+        }
+        // Otherwise, it's something else, and ignore it.
+    }
+};
+
+var defaultOptions = {
+    delimiters: [
+        {left: "$$", right: "$$", display: true},
+        {left: "\\[", right: "\\]", display: true},
+        {left: "\\(", right: "\\)", display: false}
+        // LaTeX uses this, but it ruins the display of normal `$` in text:
+        // {left: "$", right: "$", display: false}
+    ],
+
+    ignoredTags: [
+        "script", "noscript", "style", "textarea", "pre", "code"
+    ]
+};
+
+var extend = function(obj) {
+    // Adapted from underscore.js' `_.extend`. See LICENSE.txt for license.
+    var source, prop;
+    for (var i = 1, length = arguments.length; i < length; i++) {
+        source = arguments[i];
+        for (prop in source) {
+            if (Object.prototype.hasOwnProperty.call(source, prop)) {
+                obj[prop] = source[prop];
+            }
+        }
+    }
+    return obj;
+};
+
+var renderMathInElement = function(elem, options) {
+    if (!elem) {
+        throw new Error("No element provided to render");
+    }
+
+    options = extend({}, defaultOptions, options);
+
+    renderElem(elem, options.delimiters, options.ignoredTags);
+};
+
+renderMathInElement(document.body);
+
+</script>

docs/_includes/nav.html

@@ -0,0 +1,32 @@
+<div id="fixed_header" class="fixedHeaderContainer{% if include.alwayson %} visible{% endif %}">
+  <div class="headerWrapper wrapper">
+    <header>
+      <a href="{{ '/' | absolute_url }}">
+        <img src="{{ '/static/logo.svg' | relative_url }}">
+        <h2>{{ site.title }}</h2>
+      </a>
+
+      <div class="navigationWrapper navigationFull" id="flat_nav">
+        <nav class="navigation">
+          <ul>
+            {% for item in site.data.nav %}
+              <li class="navItem{% if page.collection == item.category or page.category == item.category %} navItemActive{% endif %}">
+                {% if item.category == "external" %}
+                  <a href="{{ item.href }}">{{ item.title }}</a>
+                {% else %}
+                  <a href="{{ item.href | relative_url }}">{{ item.title }}</a>
+                {% endif %}
+              </li>
+            {% endfor %}
+            {% if site.searchconfig %}
+            {% include nav_search.html inputselector="search_input" %}
+            {% endif %}
+          </ul>
+        </nav>
+      </div>
+      <div class="navigationWrapper navigationSlider" id="navigation_wrap">
+        {% include nav/header_nav.html %}
+      </div>
+    </header>
+  </div>
+</div>

docs/_includes/nav/collection_nav.html

@@ -0,0 +1,54 @@
+<div class="docsNavContainer">
+  <nav class="toc" id="doc_nav">
+    <div class="toggleNav" id="collection_nav">
+      <section class="navWrapper wrapper">
+        <div class="navBreadcrumb wrapper">
+          <div class="navToggle" id="collection_nav_toggler">
+            <i></i>
+          </div>
+          <h2>
+            <a href="{{ include.sectionpath }}">{{ include.sectiontitle }}</a>
+            {% if include.currentgroup %}
+            <i>›</i>
+            <span>{{ include.currentgroup }}</span>
+            {% endif %}
+          </h2>
+        </div>
+        <div class="navGroups">
+          {% if include.type == "blog" %}
+            {% assign grouptitle = "All Posts" %}
+            {% assign groupitems = include.navdata %}
+            {% include nav/collection_nav_group.html %}
+          {% else %}
+          {% for group in include.navdata %}
+            {% assign grouptitle = group.title %}
+            {% for item in group.items %}
+              {% if item.id == page.docid %}
+              {% assign currentselected = item.id %}
+              {% assign currentgroup = group %}
+              {% endif %}
+            {% endfor %}
+            {% include nav/collection_nav_group.html %}
+          {% endfor %}
+          {% endif %}
+        </div>
+      </section>
+    </div>
+  </nav>
+</div>
+<script>
+  var docsevent = document.createEvent('Event');
+  docsevent.initEvent('docs_slide', true, true);
+  document.addEventListener('docs_slide', function (e) {
+    document.body.classList.toggle('docsSliderActive');
+  }, false);
+
+  var collectionNav = document.getElementById('collection_nav');
+  var collectionNavToggler =
+    document.getElementById('collection_nav_toggler');
+  collectionNavToggler.addEventListener('click', function(e) {
+    collectionNav.classList.toggle('toggleNavActive');
+    document.dispatchEvent(docsevent);
+  });
+
+</script>

docs/_includes/nav/collection_nav_group.html

@@ -0,0 +1,19 @@
+<div class="navGroup navGroupActive navGroupCurrent">
+  <h3><span>{{ grouptitle }}</span></h3>
+  <ul>
+    {% if include.data_collection %}
+      {% for item in group.items %}
+        {% for collectionitem in include.data_collection %}
+        {% if collectionitem.docid == item.id %}
+          {% assign groupitem = collectionitem %}
+          {% include nav/collection_nav_group_item.html %}
+        {% endif %}
+        {% endfor %}
+      {% endfor %}
+    {% else %}
+      {% for groupitem in groupitems %}
+      {% include nav/collection_nav_group_item.html %}
+      {% endfor %}
+    {% endif %}
+  </ul>
+</div>

docs/_includes/nav/collection_nav_group_item.html

@@ -0,0 +1 @@
+<li class="navListItem"><a class="navItem {% if item.id == currentselected %}navItemActive{% endif %}" href="{{ groupitem.url | relative_url }}">{{ groupitem.title }}</a></li>

docs/_includes/nav/header_nav.html

@@ -0,0 +1,34 @@
+<div id="header_nav">
+  <div class="navSlideout">
+    <i class="menuExpand" id="header_nav_expander"><span></span><span></span><span></span></i>
+  </div>
+  <nav class="slidingNav">
+    <ul>
+      {% for item in site.data.nav %}
+      <li class="navItem">
+        {% if item.category == "external" %}
+          <a href="{{ item.href }}" target="_blank">{{ item.title }}</a>
+        {% else %}
+          <a href="{{ item.href | relative_url }}">{{ item.title }}</a>
+        {% endif %}
+      </li>
+      {% endfor %}
+      {% if site.searchconfig %}
+      {% include nav_search.html inputselector="search_input_react" %}
+      {% endif %}
+    </ul>
+  </nav>
+</div>
+<script>
+  var event = document.createEvent('Event');
+  event.initEvent('slide', true, true);
+  document.addEventListener('slide', function (e) {
+    document.body.classList.toggle('sliderActive');
+  }, false);
+  var headerNav = document.getElementById('header_nav');
+  var headerNavExpander = document.getElementById('header_nav_expander');
+  headerNavExpander.addEventListener('click', function(e) {
+    headerNav.classList.toggle('navSlideoutActive');
+    document.dispatchEvent(event);
+  }, false);
+</script>

docs/_includes/nav_search.html

@@ -0,0 +1,15 @@
+<li class="navSearchWrapper">
+  <input id="{{ include.inputselector }}" type="search" />
+</li>
+<script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script>
+<script>
+// For Algolia search
+(function() {
+  // Algolia
+  docsearch({
+    apiKey: '{{ site.searchconfig.apikey }}',
+    indexName: '{{ site.searchconfig.indexname }}',
+    inputSelector: '#{{ include.inputselector }}',
+  });
+}());
+</script>

docs/_includes/plugins/all_share.html

@@ -0,0 +1,3 @@
+<div class="pluginBlock allShareBlock">
+  {% include plugins/like_button.html %}{% include plugins/twitter_share.html %}{% include plugins/google_share.html %}
+</div>

docs/_includes/plugins/ascii_cinema.html

@@ -0,0 +1,2 @@
+<div class="ascii-cinema pluginBlock"></div>
+<script type="text/javascript" src="https://asciinema.org/a/{{ include.href }}.js" id="asciicast-{{ include.href }}" async data-autoplay="true" data-loop="true" data-speed="2" data-t="23"></script>

docs/_includes/plugins/button.html

@@ -0,0 +1,6 @@
+<div class="pluginWrapper buttonWrapper">
+  <a
+    class="button"
+    href="{{ include.href }}"
+  >{{ include.text }}</a>
+</div>

docs/_includes/plugins/github_star.html

@@ -0,0 +1,4 @@
+<div class="pluginWrapper ghStarWrapper">
+  <a aria-label="Star {{ site.ghrepo }} on GitHub" data-count-aria-label="# stargazers on GitHub" data-count-api="/repos/{{ site.ghrepo }}#stargazers_count" data-count-href="/{{ site.ghrepo }}/stargazers" data-style="mega" data-icon="octicon-star" href="https://github.com/{{ site.ghrepo }}" class="github-button">Star</a>
+</div>
+<script async defer id="github-bjs" src="https://buttons.github.io/buttons.js"></script>

docs/_includes/plugins/github_watch.html

@@ -0,0 +1,4 @@
+<div class="pluginWrapper ghWatchWrapper">
+  <a aria-label="Watch {{ site.ghrepo }} on GitHub" data-count-aria-label="# watchers on GitHub" data-count-api="/repos/{{ site.ghrepo }}#subscribers_count" data-count-href="/{{ site.ghrepo }}/watchers" data-style="mega" data-icon="octicon-eye" href="https://github.com/{{ site.ghrepo }}" class="github-button">Watch</a>
+</div>
+<script async defer id="github-bjs" src="https://buttons.github.io/buttons.js"></script>

docs/_includes/plugins/google_share.html

@@ -0,0 +1,5 @@
+<div class="pluginBlock">
+  <div class="g-plusone" data-size="medium"></div>
+</div>
+
+<script src="https://apis.google.com/js/platform.js" async defer></script>

docs/_includes/plugins/iframe.html

@@ -0,0 +1,6 @@
+<div class="iframeContent">
+  <iframe class="pluginIframe" src="{{ include.href }}" seamless></iframe>
+</div>
+<div class="iframePreview">
+  {% include plugins/button.html href=include.href text=include.text %}
+</div>

docs/_includes/plugins/like_button.html

@@ -0,0 +1,18 @@
+<div class="fb-like pluginWrapper likeButtonWrapper" data-layout="button_count" data-action="like" data-show-faces="true" data-share="true"></div>
+<script>
+  window.fbAsyncInit = function() {
+  FB.init({
+    appId      : '{{ site.fbappid }}',
+    xfbml      : true,
+    version    : 'v2.3'
+  });
+  };
+
+  (function(d, s, id){
+   var js, fjs = d.getElementsByTagName(s)[0];
+   if (d.getElementById(id)) {return;}
+   js = d.createElement(s); js.id = id;
+   js.src = "//connect.facebook.net/en_US/sdk.js";
+   fjs.parentNode.insertBefore(js, fjs);
+   }(document, 'script', 'facebook-jssdk'));
+</script>

docs/_includes/plugins/plugin_row.html

@@ -0,0 +1,6 @@
+<div class="pluginRowBlock">
+{% for child in include.children %}
+  {% include plugins/{{child.type}}.html href=child.href text=child.text %}
+  <div style="width: 20px;"></div>
+{% endfor %}
+</div>

docs/_includes/plugins/post_social_plugins.html

@@ -0,0 +1,34 @@
+<div class="postSocialPlugins">
+  <a
+    href="https://twitter.com/share"
+    class="twitter-share-button"
+    data-url="{{ page.url | replace:'index.html','' | absolute_url }}"
+    data-text="{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}"
+    data-hashtags="flowtype">Tweet</a>
+  <div
+    class="fb-like"
+    data-href="{{ page.url | replace:'index.html','' | absolute_url }}"
+    data-layout="button_count"
+    data-action="like"
+    data-show-faces="false"
+    data-share="true"></div>
+</div>
+<script>
+  window.fbAsyncInit = function() {
+  FB.init({
+    appId      : '{{ site.fbappid }}',
+    xfbml      : true,
+    version    : 'v2.2'
+  });
+  };
+
+  (function(d, s, id){
+   var js, fjs = d.getElementsByTagName(s)[0];
+   if (d.getElementById(id)) {return;}
+   js = d.createElement(s); js.id = id;
+   js.src = "//connect.facebook.net/en_US/sdk.js";
+   fjs.parentNode.insertBefore(js, fjs);
+   }(document, 'script', 'facebook-jssdk'));
+</script>
+
+<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>

docs/_includes/plugins/slideshow.html

@@ -0,0 +1,88 @@
+<div class="slideshowBlock pluginWrapper" id="slideshow"></div>
+<script>
+  var slideshowData = [
+    {% for image in site.data.slideshow %}
+    {
+      id         : "{{ image.id }}",
+      imagesrc   : "{{ image.src }}",
+      tooltip    : "{{ image.tooltip }}",
+      href       : "{{ image.link }}",
+    },
+    {% endfor %}
+  ];
+</script>
+<script src="http://fb.me/react-with-addons-0.13.1.min.js"></script>
+<script type="text/javascript">
+  var Slideshow = React.createClass({displayName: "Slideshow",
+    getInitialState: function() {
+      return {
+        currentSlide: 0,
+      };
+    },
+    getDefaultProps: function() {
+      return {
+        data: slideshowData,
+      };
+    },
+    handleSelect: function(id) {
+      var index = this.props.data.map(function (el, elIndex) {
+        return (
+          elIndex
+        );
+      });
+      var currentIndex = index.indexOf(id);
+      this.setState({
+        currentSlide: currentIndex,
+      });
+    },
+    render: function() {
+      return (
+        React.createElement("div", {className: "slideshow"},
+          React.createElement("div", {className: "slides"},
+            this.props.data.map(this.renderSlide)
+          ),
+          React.createElement("div", {className: "pagination"},
+            this.props.data.map(this.renderPager)
+          )
+        )
+      );
+    },
+    renderSlide: function(child, index) {
+      var classes = React.addons.classSet({
+        'slide': true,
+        'slideActive': this.state.currentSlide === index,
+      });
+      if (child.href) {
+        return (
+          React.createElement("div", {key: index, className: classes},
+            React.createElement("a", {href: child.href, alt: child.tooltip, title: child.tooltip},
+              React.createElement("img", {src: child.imagesrc, alt: child.tooltip, title: child.tooltip})
+            )
+          )
+        );
+      }
+      return (
+        React.createElement("div", {key: index, className: classes},
+          React.createElement("img", {src: child.imagesrc, alt: child.tooltip})
+        )
+      );
+    },
+    renderPager: function(child, index) {
+      var classes = React.addons.classSet({
+        'pager': true,
+        'pagerActive': this.state.currentSlide === index,
+      });
+      return (
+        React.createElement("span", {key: index, className: classes, onClick: this.handleSelect.bind(this, index)})
+      );
+    },
+  });
+
+  function render(slideshowData) {
+    React.render(
+      React.createElement(Slideshow, {data: slideshowData}),
+      document.getElementById('slideshow')
+    );
+  }
+  render(slideshowData);
+</script>

docs/_includes/plugins/twitter_follow.html

@@ -0,0 +1,5 @@
+<div class="pluginBlock">
+  <a href="https://twitter.com/{{ include.href }}" class="twitter-follow-button pluginBlock" data-show-count="false">Follow @{{ include.href }}</a>
+</div>
+
+<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>

docs/_includes/plugins/twitter_share.html

@@ -0,0 +1,4 @@
+<div class="pluginWrapper twitterSharePlugin">
+  <a href="https://twitter.com/share" class="twitter-share-button" data-hashtags="{{ site.title| replace: ' ', '' }}">Tweet</a>
+</div>
+<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>

docs/_includes/post.html

@@ -0,0 +1,35 @@
+<div class="post">
+  {% assign author = site.data.authors[page.author] %}
+  <header class="post-header">
+    {% if author.fbid %}
+    <div class="authorPhoto">
+      <img src="http://graph.facebook.com/{{ author.fbid }}/picture/" alt="{{ author.fullname }}" title="{{ author.fullname }}" />
+    </div>
+    {% endif %}
+    {% if author.full_name %}
+    <p class="post-authorName">{{ author.full_name }}</p>
+    {% endif %}
+    <h1 class="post-title">{% if include.truncate %}<a href="{{ page.url | absolute_url }}">{{ page.title }}</a>{% else %}{{ page.title }}{% endif %}</h1>
+    <p class="post-meta">Posted {{ page.date | date: '%B %d, %Y' }}{% if page.meta %} • {{ page.meta }}{% endif %}</p>
+  </header>
+
+  <article class="post-content">
+  {% if include.truncate %}
+    {% if page.content contains '<!--truncate-->' %}
+      {{ page.content | split:'<!--truncate-->' | first | markdownify }}
+      <div class="read-more">
+        <a href="{{ page.url | absolute_url}}" >
+          Read More
+        </a>
+      </div>
+    {% else %}
+      {{ page.content | markdownify }}
+    {% endif %}
+  {% else %}
+    {{ content }}
+  {% endif %}
+  {% unless include.truncate %}
+    {% include plugins/all_share.html %}
+  {% endunless %}
+  </article>
+</div>

docs/_includes/powered_by.html

@@ -0,0 +1,28 @@
+{% if site.data.powered_by.first.items or site.data.powered_by_highlight.first.items %}
+<div class="poweredByContainer">
+  <div class="wrapper mainWrapper poweredByWrapper">
+    {% if site.data.powered_by_highlight.first.title %}
+    <h2>{{ site.data.powered_by_highlight.first.title }}</h2>
+    {% else %}
+    <h2>{{ site.data.powered_by.first.title }}</h2>
+    {% endif %}
+    {% if site.data.powered_by_highlight.first.items %}
+    <div class="poweredByItems">
+      {% for item in site.data.powered_by_highlight.first.items %}
+      <div class="poweredByItem itemLarge">
+        <a href="{{ item.url }}" target="_blank"><img src="{{ item.img }}" alt="{{ item.name }}" /></a>
+      </div>
+      {% endfor %}
+    </div>
+    {% endif %}
+    <div class="poweredByItems">
+      {% for item in site.data.powered_by.first.items %}
+      <div class="poweredByItem itemSmall">
+        <a href="{{ item.url }}" target="_blank">{{ item.name }}</a>
+      </div>
+      {% endfor %}
+    </div>
+    <div class="poweredByMessage">Does your app use {{ site.title }}? Add it to this list with <a href="https://github.com/{{ site.ghrepo }}/edit/gh-pages/_data/powered_by.yml" target="_blank">a pull request!</a></div>
+  </div>
+</div>
+{% endif %}

docs/_includes/social_plugins.html

@@ -0,0 +1,24 @@
+<a
+  href="https://twitter.com/share"
+  class="twitter-share-button"
+  data-url="http://facebook.github.io/fresco{{ page.url }}"
+  data-text="Fresco | {{ page.title }}"
+  data-hashtags="fresco">Tweet</a>
+<div
+  class="fb-like"
+  data-href="http://facebook.github.io/fresco{{ page.url }}"
+  data-layout="standard"
+  data-action="like"
+  data-show-faces="true"
+  data-share="true"></div>
+
+<div id="fb-root"></div>
+<script>(function(d, s, id) {
+  var js, fjs = d.getElementsByTagName(s)[0];
+  if (d.getElementById(id)) return;
+  js = d.createElement(s); js.id = id;
+  js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.0";
+  fjs.parentNode.insertBefore(js, fjs);
+}(document, 'script', 'facebook-jssdk'));</script>
+
+<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>

docs/_includes/ui/button.html

@@ -0,0 +1 @@
+<span class="buttonWrap {{ include.align }}"><a class="button blockButton fbossFontLight pluginBlock margin{{ include.margin }}" target="{{ include.button_target }}" href="{{ include.button_href }}">{{ include.button_text }}</a></span>

docs/_layouts/basic.html

@@ -0,0 +1,12 @@
+---
+layout: doc_default
+---
+
+<div class="mainContainer blogContainer postContainer">
+  <div id="main_wrap" class="wrapper mainWrapper">
+    <div class="post basicPost">
+      {{ content }}
+    </div>
+  </div>
+</div>
+

docs/_layouts/blog.html

@@ -0,0 +1,11 @@
+---
+category: blog
+layout: blog_default
+---
+
+<div class="mainContainer blogContainer postContainer">
+  <div id="main_wrap" class="wrapper mainWrapper">
+    {{ content }}
+  </div>
+</div>
+

docs/_layouts/blog_default.html

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+  {% include head.html %}
+  <body class="docsNavVisible">
+    {% include nav.html alwayson=true %}
+    <div class="navPusher">
+      <div class="docMainWrapper wrapper">
+      {% include nav/collection_nav.html navdata=site.posts type="blog" sectionpath="/blog/" sectiontitle="Blog" %}
+      {{ content }}
+      </div>
+      {% include footer.html %}
+    </div>
+  </body>
+</html>

docs/_layouts/default.html

@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+  {% include head.html %}
+  <body>
+    {% include nav.html alwayson=true %}
+    <div class="navPusher">
+      {{ content }}
+      {% include footer.html %}
+    </div>
+  </body>
+
+</html>

docs/_layouts/doc_default.html

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+  {% include head.html %}
+  <body class="docsNavVisible">
+    {% include nav.html alwayson=true %}
+    <div class="navPusher">
+      <div class="docMainWrapper wrapper">
+      {% include nav/collection_nav.html navdata=site.data.nav_docs type="docs" sectionpath="/yoga/docs/" sectiontitle="Docs" data_collection=site.docs %}
+      {{ content }}
+      </div>
+      {% include footer.html %}
+    </div>
+  </body>
+</html>

docs/_layouts/doc_page.html

@@ -0,0 +1,10 @@
+---
+layout: doc_default
+---
+
+<div class="mainContainer documentContainer postContainer">
+  <div id="main_wrap" class="wrapper mainWrapper">
+    {{ content }}
+  </div>
+</div>
+