Add types for AbortController (#328)

Author: guymers

src/main/scala/org/scalajs/dom/experimental/AbortController.scala

@@ -0,0 +1,60 @@
+package org.scalajs.dom.experimental
+
+import org.scalajs.dom.raw.EventTarget
+
+import scala.scalajs.js
+import scala.scalajs.js.annotation.JSGlobal
+
+/**
+ * The AbortController interface represents a controller object that allows you
+ * to abort one or more DOM requests as and when desired.
+ *
+ * MDN
+ */
+@js.native
+@JSGlobal
+class AbortController() extends js.Object {
+
+  /**
+   * Returns a AbortSignal object instance, which can be used to communicate
+   * with/abort a DOM request
+   *
+   * MDN
+   */
+  val signal: AbortSignal = js.native
+
+  /**
+   * Aborts a DOM request before it has completed. This is able to abort fetch
+   * requests, consumption of any response Body, and streams.
+   *
+   * MDN
+   */
+  def abort(): Unit = js.native
+}
+
+/**
+ * The AbortSignal interface represents a signal object that allows you to
+ * communicate with a DOM request (such as a Fetch) and abort it if required
+ * via an AbortController object.
+ *
+ * MDN
+ */
+@js.native
+trait AbortSignal extends EventTarget {
+
+  /**
+   * A Boolean that indicates whether the request(s) the signal is
+   * communicating with is/are aborted (true) or not (false).
+   *
+   * MDN
+   */
+  def aborted: Boolean = js.native
+
+  /**
+   * Invoked when an abort event fires, i.e. when the DOM request(s) the signal
+   * is communicating with is/are aborted.
+   *
+   * MDN
+   */
+  var onabort: js.Function0[Any] = js.native
+}

src/main/scala/org/scalajs/dom/experimental/Fetch.scala

@@ -68,6 +68,10 @@ class Request(input: RequestInfo, init: RequestInit = null) extends js.Object {
   def redirect: RequestRedirect = js.native
 
   def integrity: String = js.native //should be DOMString
+
+  def keepalive: Boolean = js.native
+
+  def signal: AbortSignal = js.native
 }
 
 object RequestInit {
@@ -88,6 +92,7 @@ object RequestInit {
    * //todo: it would help a lot if there were a way to make this fully type safe
    */
   @inline
+  @deprecated("use `new RequestInit {}` instead", "0.9.7")
   def apply(method: js.UndefOr[HttpMethod] = js.undefined,
       headers: js.UndefOr[HeadersInit] = js.undefined,
       body: js.UndefOr[BodyInit] = js.undefined,
@@ -114,8 +119,8 @@ object RequestInit {
     set("referrerPolicy", referrerPolicy)
     set("mode", mode)
     set("credentials", credentials)
-    set("requestCache", requestCache)
-    set("requestRedirect", requestRedirect)
+    set("cache", requestCache)
+    set("redirect", requestRedirect)
     set("integrity", integrity)
     set("window", window)
 
@@ -143,12 +148,16 @@ trait RequestInit extends js.Object {
 
   var credentials: js.UndefOr[RequestCredentials]
 
-  var requestCache: js.UndefOr[RequestCache]
+  var cache: js.UndefOr[RequestCache]
 
-  var requestRedirect: js.UndefOr[RequestRedirect]
+  var redirect: js.UndefOr[RequestRedirect]
 
   var integrity: js.UndefOr[String]
 
+  var keepalive: js.UndefOr[Boolean]
+
+  var signal: js.UndefOr[AbortSignal]
+
   /**
    * The whatwg spec section on [[https://fetch.spec.whatwg.org/#requestinit RequestInit dictionary]]
    * has a comment that states that this value "can only be set to null".