Fill out w3c pointer event types

Summary: Changelog: [Internal] Fill out w3c PointerEvent flow types

Reviewed By: yungsters

Differential Revision: D36296044

fbshipit-source-id: f1c184fd6486fa72077e5b80d2335919af0fc145

Libraries/Pressability/Pressability.js

@@ -935,16 +935,15 @@ const getTouchFromPressEvent = (event: PressEvent) => {
 };
 
 function convertPointerEventToMouseEvent(input: PointerEvent): MouseEvent {
-  const {touchHistory: _, ...synthEvent} = input;
-  const {clientX, clientY, timestamp} = input.nativeEvent;
+  const {clientX, clientY} = input.nativeEvent;
   return {
-    ...synthEvent,
+    ...input,
     nativeEvent: {
       clientX,
       clientY,
       pageX: clientX,
       pageY: clientY,
-      timestamp,
+      timestamp: input.timeStamp,
     },
   };
 }

Libraries/Types/CoreEventTypes.js

@@ -83,17 +83,134 @@ export type TextLayoutEvent = SyntheticEvent<
   |}>,
 >;
 
-export type PointerEvent = ResponderSyntheticEvent<
-  $ReadOnly<{|
-    pointerId: number,
-    pressure: number,
-    pointerType: string,
-    clientX: number,
-    clientY: number,
-    target: ?number,
-    timestamp: number,
-  |}>,
->;
+/**
+ * https://developer.mozilla.org/en-US/docs/Web/API/UIEvent
+ */
+export interface NativeUIEvent {
+  /**
+   * Returns a long with details about the event, depending on the event type.
+   */
+  +detail: number;
+}
+
+/**
+ * https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent
+ */
+export interface NativeMouseEvent extends NativeUIEvent {
+  /**
+   * The X coordinate of the mouse pointer in global (screen) coordinates.
+   */
+  +screenX: number;
+  /**
+   * The Y coordinate of the mouse pointer in global (screen) coordinates.
+   */
+  +screenY: number;
+  /**
+   * The X coordinate of the mouse pointer relative to the whole document.
+   */
+  +pageX: number;
+  /**
+   * The Y coordinate of the mouse pointer relative to the whole document.
+   */
+  +pageY: number;
+  /**
+   * The X coordinate of the mouse pointer in local (DOM content) coordinates.
+   */
+  +clientX: number;
+  /**
+   * The Y coordinate of the mouse pointer in local (DOM content) coordinates.
+   */
+  +clientY: number;
+  /**
+   * Alias for NativeMouseEvent.clientX
+   */
+  +x: number;
+  /**
+   * Alias for NativeMouseEvent.clientY
+   */
+  +y: number;
+  /**
+   * Returns true if the control key was down when the mouse event was fired.
+   */
+  +ctrlKey: boolean;
+  /**
+   * Returns true if the shift key was down when the mouse event was fired.
+   */
+  +shiftKey: boolean;
+  /**
+   * Returns true if the alt key was down when the mouse event was fired.
+   */
+  +altKey: boolean;
+  /**
+   * Returns true if the meta key was down when the mouse event was fired.
+   */
+  +metaKey: boolean;
+  /**
+   * The button number that was pressed (if applicable) when the mouse event was fired.
+   */
+  +button: number;
+  /**
+   * The buttons being depressed (if any) when the mouse event was fired.
+   */
+  +buttons: number;
+  /**
+   * The secondary target for the event, if there is one.
+   */
+  +relatedTarget: null | number | React.ElementRef<HostComponent<mixed>>;
+}
+
+/**
+ * https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent
+ */
+export interface NativePointerEvent extends NativeMouseEvent {
+  /**
+   * A unique identifier for the pointer causing the event.
+   */
+  +pointerId: number;
+  /**
+   * The width (magnitude on the X axis), in CSS pixels, of the contact geometry of the pointer
+   */
+  +width: number;
+  /**
+   * The height (magnitude on the Y axis), in CSS pixels, of the contact geometry of the pointer.
+   */
+  +height: number;
+  /**
+   * The normalized pressure of the pointer input in the range 0 to 1, where 0 and 1 represent
+   * the minimum and maximum pressure the hardware is capable of detecting, respectively.
+   */
+  +pressure: number;
+  /**
+   * The normalized tangential pressure of the pointer input (also known as barrel pressure or
+   * cylinder stress) in the range -1 to 1, where 0 is the neutral position of the control.
+   */
+  +tangentialPressure: number;
+  /**
+   * The plane angle (in degrees, in the range of -90 to 90) between the Y–Z plane and the plane
+   * containing both the pointer (e.g. pen stylus) axis and the Y axis.
+   */
+  +tiltX: number;
+  /**
+   * The plane angle (in degrees, in the range of -90 to 90) between the X–Z plane and the plane
+   * containing both the pointer (e.g. pen stylus) axis and the X axis.
+   */
+  +tiltY: number;
+  /**
+   * The clockwise rotation of the pointer (e.g. pen stylus) around its major axis in degrees,
+   * with a value in the range 0 to 359.
+   */
+  +twist: number;
+  /**
+   * Indicates the device type that caused the event (mouse, pen, touch, etc.)
+   */
+  +pointerType: string;
+  /**
+   * Indicates if the pointer represents the primary pointer of this pointer type.
+   */
+  +isPrimary: boolean;
+}
+
+export type PointerEvent = SyntheticEvent<NativePointerEvent>;
 
 export type PressEvent = ResponderSyntheticEvent<
   $ReadOnly<{|