Fabric: <Root> component was decoupled from <View>

Summary:
@public
There is no reason to have it inside View; it deserves that.

Reviewed By: mdvacca

Differential Revision: D8757012

fbshipit-source-id: 881b54008b51614cd203ab97811494fa7c30e4ef

ReactCommon/fabric/components/root/BUCK

@@ -0,0 +1,79 @@
+load("@xplat//tools/build_defs:glob_defs.bzl", "subdir_glob")
+load("//configurations/buck/apple:flag_defs.bzl", "OBJC_ARC_PREPROCESSOR_FLAGS", "get_application_ios_flags", "get_debug_preprocessor_flags")
+load("//ReactNative:DEFS.bzl", "ANDROID", "APPLE", "IS_OSS_BUILD", "get_apple_inspector_flags", "react_native_xplat_target", "rn_xplat_cxx_library")
+
+APPLE_COMPILER_FLAGS = []
+
+if not IS_OSS_BUILD:
+    load("@xplat//configurations/buck/apple:flag_defs.bzl", "flags", "get_static_library_ios_flags")
+
+    APPLE_COMPILER_FLAGS = flags.get_flag_value(get_static_library_ios_flags(), "compiler_flags")
+
+rn_xplat_cxx_library(
+    name = "root",
+    srcs = glob(
+        ["**/*.cpp"],
+        exclude = glob(["tests/**/*.cpp"]),
+    ),
+    headers = [],
+    header_namespace = "",
+    exported_headers = subdir_glob(
+        [
+            ("", "*.h"),
+        ],
+        prefix = "fabric/components/root",
+    ),
+    compiler_flags = [
+        "-fexceptions",
+        "-frtti",
+        "-std=c++14",
+        "-Wall",
+    ],
+    fbobjc_compiler_flags = APPLE_COMPILER_FLAGS,
+    fbobjc_preprocessor_flags = get_debug_preprocessor_flags() + get_apple_inspector_flags(),
+    fbobjc_tests = [
+        ":tests",
+    ],
+    macosx_tests_override = [],
+    platforms = (ANDROID, APPLE),
+    preprocessor_flags = [
+        "-DLOG_TAG=\"ReactNative\"",
+        "-DWITH_FBSYSTRACE=1",
+    ],
+    tests = [],
+    visibility = ["PUBLIC"],
+    deps = [
+        "xplat//fbsystrace:fbsystrace",
+        "xplat//folly:headers_only",
+        "xplat//folly:memory",
+        "xplat//folly:molly",
+        "xplat//third-party/glog:glog",
+        "xplat//yoga:yoga",
+        react_native_xplat_target("fabric/debug:debug"),
+        react_native_xplat_target("fabric/core:core"),
+        react_native_xplat_target("fabric/graphics:graphics"),
+        react_native_xplat_target("fabric/components/view:view"),
+    ],
+)
+
+if not IS_OSS_BUILD:
+    load("@xplat//build_defs:fb_xplat_cxx_test.bzl", "fb_xplat_cxx_test")
+
+    fb_xplat_cxx_test(
+        name = "tests",
+        srcs = glob(["tests/**/*.cpp"]),
+        headers = glob(["tests/**/*.h"]),
+        contacts = ["oncall+react_native@xmail.facebook.com"],
+        compiler_flags = [
+            "-fexceptions",
+            "-frtti",
+            "-std=c++14",
+            "-Wall",
+        ],
+        platforms = APPLE,
+        deps = [
+            "xplat//folly:molly",
+            "xplat//third-party/gmock:gtest",
+            ":root",
+        ],
+    )

ReactCommon/fabric/components/root/RootShadowNode.h

@@ -9,7 +9,7 @@
 
 #include <memory>
 
-#include <fabric/components/view/RootProps.h>
+#include <fabric/components/root/RootProps.h>
 #include <fabric/components/view/ConcreteViewShadowNode.h>
 #include <fabric/core/LayoutContext.h>
 

ReactCommon/fabric/components/root/tests/RootShadowNodeTest.cpp

@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#include <memory>
+
+#include <gtest/gtest.h>
+
+TEST(RootShadowNodeTest, testSomething) {
+  // TODO
+}

ReactCommon/fabric/uimanager/BUCK

@@ -56,11 +56,10 @@ rn_xplat_cxx_library(
         "xplat//folly:memory",
         "xplat//folly:molly",
         "xplat//third-party/glog:glog",
-        react_native_xplat_target("fabric/components/scrollview:scrollview"),
-        react_native_xplat_target("fabric/components/text:text"),
+        react_native_xplat_target("fabric/components/root:root"),
+        react_native_xplat_target("fabric/components/view:view"),
         react_native_xplat_target("fabric/core:core"),
         react_native_xplat_target("fabric/debug:debug"),
-        react_native_xplat_target("fabric/components/view:view"),
     ],
 )
 

ReactCommon/fabric/uimanager/Scheduler.cpp

@@ -5,13 +5,6 @@
 
 #include "Scheduler.h"
 
-#include <fabric/components/scrollview/ScrollViewComponentDescriptor.h>
-#include <fabric/components/text/ParagraphComponentDescriptor.h>
-#include <fabric/components/text/RawTextComponentDescriptor.h>
-#include <fabric/components/text/TextComponentDescriptor.h>
-#include <fabric/components/view/ViewComponentDescriptor.h>
-#include <fabric/components/view/ViewProps.h>
-#include <fabric/components/view/ViewShadowNode.h>
 #include <fabric/core/LayoutContext.h>
 #include <fabric/uimanager/ComponentDescriptorRegistry.h>
 #include <fabric/uimanager/FabricUIManager.h>

ReactCommon/fabric/uimanager/Scheduler.h

@@ -7,8 +7,6 @@
 
 #include <memory>
 
-#include <fabric/components/view/ViewShadowNode.h>
-#include <fabric/components/view/RootShadowNode.h>
 #include <fabric/core/ComponentDescriptor.h>
 #include <fabric/core/LayoutConstraints.h>
 #include <fabric/uimanager/ContextContainer.h>

ReactCommon/fabric/uimanager/ShadowTree.h

@@ -8,7 +8,7 @@
 #include <memory>
 #include <mutex>
 
-#include <fabric/components/view/RootShadowNode.h>
+#include <fabric/components/root/RootShadowNode.h>
 #include <fabric/core/LayoutConstraints.h>
 #include <fabric/core/ReactPrimitives.h>
 #include <fabric/core/ShadowNode.h>