Add ReactDOM.hydrate

Author: japgolly

core/src/main/scala/japgolly/scalajs/react/ReactDOM.scala

@@ -1,6 +1,7 @@
 package japgolly.scalajs.react
 
 import japgolly.scalajs.react.internal.NotAllowed
+import japgolly.scalajs.react.vdom.VdomElement
 import japgolly.scalajs.react.{raw => Raw}
 import org.scalajs.dom
 import scala.scalajs.js.|
@@ -12,6 +13,11 @@ object ReactDOM {
   def findDOMNode(componentOrElement: dom.Element | Raw.React.ComponentUntyped): Option[ComponentDom.Mounted] =
     ComponentDom.findDOMNode(componentOrElement).mounted
 
+  def hydrate(element  : VdomElement,
+              container: Raw.ReactDOM.Container,
+              callback: Callback = Callback.empty): Raw.React.ComponentUntyped =
+    Raw.ReactDOM.hydrate(element.rawElement, container, callback.toJsFn)
+
   def unmountComponentAtNode(container: dom.Node): Boolean =
     raw.unmountComponentAtNode(container)
 

doc/changelog/1.4.0.md

@@ -84,5 +84,4 @@ find . -type f -name '*.scala' -exec perl -pi -e '
 
 # TODO
 
-* SSR stuff
 * Rename `.runNow()` to `.unsafeRunNow()`?