From 8dcf0235e5e28d558776c94b633c348dea9c4e53 Mon Sep 17 00:00:00 2001
From: liyuqian <liyuqian@google.com>
Date: Mon, 16 Dec 2019 17:14:19 -0800
Subject: [PATCH] Apply SmoothPointerDataDispatcher to Fuchsia
 (flutter/engine#14514)

Fixes https://bugs.fuchsia.dev/p/fuchsia/issues/detail?id=35050
and https://github.com/flutter/flutter/issues/38811
---
 .../flutter/shell/platform/fuchsia/flutter/platform_view.cc | 6 ++++++
 .../flutter/shell/platform/fuchsia/flutter/platform_view.h  | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.cc b/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.cc
index 541851ae5af..7c6886e5b6e 100644
--- a/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.cc
+++ b/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.cc
@@ -766,4 +766,10 @@ void PlatformView::HandleFlutterPlatformViewsChannelPlatformMessage(
   }
 }
 
+flutter::PointerDataDispatcherMaker PlatformView::GetDispatcherMaker() {
+  return [](flutter::DefaultPointerDataDispatcher::Delegate& delegate) {
+    return std::make_unique<flutter::SmoothPointerDataDispatcher>(delegate);
+  };
+}
+
 }  // namespace flutter_runner
diff --git a/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.h b/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.h
index ef30c0a3de7..e02bf8d0c53 100644
--- a/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.h
+++ b/engine/src/flutter/shell/platform/fuchsia/flutter/platform_view.h
@@ -70,6 +70,9 @@ class PlatformView final : public flutter::PlatformView,
   // |flutter_runner::AccessibilityBridge::Delegate|
   void SetSemanticsEnabled(bool enabled) override;
 
+  // |PlatformView|
+  flutter::PointerDataDispatcherMaker GetDispatcherMaker() override;
+
  private:
   const std::string debug_label_;
   // TODO(MI4-2490): remove once ViewRefControl is passed to Scenic and kept