Interactive viewer doesn't appear to respect the trackpadScrollCauseScale #127111
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Steps to reproduce
#114280 seems to attempt creating an escape hatch for #112171. The docs for trackpadScrollCauseScale even spells out, scrolling on a track pad (two finger swipe up/down) should cause a zoom even when this parameter is set to true. However, setting this parameter appears to have no actual influence on the behavior of InteractiveViewer.
I am specifically compiling for web in this case using an M1 Macbook Pro and testing via flutter run -d chrome.
Expected results
I expect a two-finger swipe up/down on a trackpad to behave identically to a scroll up/down on a mouse and zoom the image in/out respectively.
Actual results
When the app first starts, a two-finger swipe in any direction on the trackpad does nothing to the image. After zooming in a little bit, either with an attached mouse with a scroll wheel or using pinch-to-zoom on the trackpad, a two finger swipe pans the image around. Neither a value of true or false to the InteractiveViewer.trackpadScrollCauseScale affects this behavior.
Code sample
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const InteractiveViewerTesting(),
);
}
}
class InteractiveViewerTesting extends StatelessWidget {
const InteractiveViewerTesting({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
body: InteractiveViewer(
trackpadScrollCausesScale: true,
child: Image.network(
"https://storage.googleapis.com/cms-storage-bucket/ed2e069ee37807f5975a.jpg",
),
),
);
}
}Screenshots or Video
The gif below was recorded with trackpadScrollCausesScale set to true. The first part of the gif is an attempt to scroll in/out using a two-finger swipe up/down on the trackpad to achieve a zoom in/out. Doing so has no effect. I then zoom in a little using a mouse with a scroll wheel, after which two-finger swipe on the trackpad still results in a pan.
Screenshots / Video demonstration
Logs
Logs
[Paste your logs here]Flutter Doctor output
Doctor output
[!] Flutter (Channel master, 3.11.0-6.0.pre.134, on macOS 13.3.1 22E772610a darwin-arm64, locale en-US)
• Flutter version 3.11.0-6.0.pre.134 on channel master at /Users/JsGjKJzi/Documents/Projects/flutter
! Warning: `flutter` on your path resolves to /Users/JsGjKJzi/development/flutter/bin/flutter, which is not inside your current Flutter
SDK checkout at /Users/JsGjKJzi/Documents/Projects/flutter. Consider adding /Users/JsGjKJzi/Documents/Projects/flutter/bin to the front of
your path.
! Warning: `dart` on your path resolves to /Users/JsGjKJzi/development/flutter/bin/dart, which is not inside your current Flutter SDK
checkout at /Users/JsGjKJzi/Documents/Projects/flutter. Consider adding /Users/JsGjKJzi/Documents/Projects/flutter/bin to the front of
your path.
! Upstream repository github:JsGjKJzi/flutter.git is not a standard remote.
Set environment variable "FLUTTER_GIT_URL" to github:JsGjKJzi/flutter.git to dismiss this error.
• Framework revision f31dae2a80 (15 hours ago), 2023-05-17 17:18:51 -0700
• Engine revision d970370779
• Dart version 3.1.0 (build 3.1.0-118.0.dev)
• DevTools version 2.23.1
• If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update
checks and upgrades.
[!] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
• Android SDK at /Users/JsGjKJzi/Library/Android/sdk
✗ cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.
[✓] Xcode - develop for iOS and macOS (Xcode 14.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 14E222b
• CocoaPods version 1.11.3
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2021.3)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)
[✓] VS Code (version 1.78.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.64.0
[✓] Connected device (2 available)
• macOS (desktop) • macos • darwin-arm64 • macOS 13.3.1 22E772610a darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 113.0.5672.126
[✓] Network resources
• All expected network resources are available.
! Doctor found issues in 2 categories.