From 023900bb99275985a3fc6d782cbae7bc6fbf520d Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Thu, 15 Feb 2024 13:47:59 +0800
Subject: [PATCH] use Timer in EntityControllerMouseWidget for pointer hover

---
 .../entity_controller_mouse_widget.dart       | 39 ++++++++++++++++---
 1 file changed, 33 insertions(+), 6 deletions(-)

diff --git a/lib/widgets/entity_controller_mouse_widget.dart b/lib/widgets/entity_controller_mouse_widget.dart
index bd692976..5aeb897e 100644
--- a/lib/widgets/entity_controller_mouse_widget.dart
+++ b/lib/widgets/entity_controller_mouse_widget.dart
@@ -1,5 +1,7 @@
+import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_filament/entities/entity_transform_controller.dart';
+import 'dart:async';
 
 ///
 /// A widget that translates mouse gestures to zoom/pan/rotate actions.
@@ -8,16 +10,41 @@ class EntityTransformMouseControllerWidget extends StatelessWidget {
   final EntityTransformController? transformController;
   final Widget? child;
 
-  const EntityTransformMouseControllerWidget(
+  EntityTransformMouseControllerWidget(
       {Key? key, required this.transformController, this.child})
       : super(key: key);
 
+  Timer? _timer;
   @override
   Widget build(BuildContext context) {
-    return Listener(
-        onPointerHover: (event) {
-          transformController?.look(event.delta.dx);
-        },
-        child: child);
+    return LayoutBuilder(
+        builder: (BuildContext context, BoxConstraints constraints) {
+      return Listener(
+          onPointerDown: (event) {
+            if (kPrimaryMouseButton & event.buttons != 0) {
+              transformController?.mouse1Down();
+            }
+          },
+          onPointerUp: (event) {
+            if (kPrimaryMouseButton & event.buttons != 0) {
+              transformController?.mouse1Up();
+            }
+          },
+          onPointerHover: (event) {
+            _timer?.cancel();
+            if (event.position.dx < 10) {
+              _timer = Timer.periodic(const Duration(milliseconds: 17), (_) {
+                transformController?.look(-30);
+              });
+            } else if (event.position.dx > constraints.maxWidth - 10) {
+              _timer = Timer.periodic(const Duration(milliseconds: 17), (_) {
+                transformController?.look(30);
+              });
+            } else {
+              transformController?.look(event.delta.dx);
+            }
+          },
+          child: child);
+    });
   }
 }