From 53858ceaa3beab02726b1bd6e125e506477d445e Mon Sep 17 00:00:00 2001
From: Peter Argany <petetheheat@fb.com>
Date: Tue, 17 Nov 2020 14:47:55 -0800
Subject: [PATCH] Add reset method to RCTFabricSurface [2/N]

Summary:
This method allows a surface to re-render from scratch, without having to delete and reinstantiate the surface.

Changelog: [iOS] Added reset method to RCTFabricSurface to help with reloads

Reviewed By: RSNara

Differential Revision: D25000509

fbshipit-source-id: f74170aa78cc84491ad2679f130ed3c8965bbe34
---
 React/Fabric/Surface/RCTFabricSurface.h  | 7 +++++++
 React/Fabric/Surface/RCTFabricSurface.mm | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/React/Fabric/Surface/RCTFabricSurface.h b/React/Fabric/Surface/RCTFabricSurface.h
index d4dd93c9119..1c3e4af43f7 100644
--- a/React/Fabric/Surface/RCTFabricSurface.h
+++ b/React/Fabric/Surface/RCTFabricSurface.h
@@ -70,6 +70,13 @@ NS_ASSUME_NONNULL_BEGIN
 - (BOOL)start;
 - (BOOL)stop;
 
+/**
+ * EXPERIMENTAL
+ * Reset's the Surface to it's initial stage.
+ * It uses the passed in surface presenter, and whatever else was passed in init.
+ */
+- (void)resetWithSurfacePresenter:(RCTSurfacePresenter *)surfacePresenter;
+
 #pragma mark - Layout: Setting the size constrains
 
 /**
diff --git a/React/Fabric/Surface/RCTFabricSurface.mm b/React/Fabric/Surface/RCTFabricSurface.mm
index 35368dada39..993985c4846 100644
--- a/React/Fabric/Surface/RCTFabricSurface.mm
+++ b/React/Fabric/Surface/RCTFabricSurface.mm
@@ -64,6 +64,13 @@ using namespace facebook::react;
   return self;
 }
 
+- (void)resetWithSurfacePresenter:(RCTSurfacePresenter *)surfacePresenter
+{
+  _surfacePresenter = surfacePresenter;
+  _stage = RCTSurfaceStageSurfaceDidInitialize;
+  _view = nil;
+}
+
 - (BOOL)start
 {
   if (![self _setStage:RCTSurfaceStageStarted]) {