[super_context_menu] Crash on Linux when right-clicking quickly

[Merrit]

When right-clicking on a ContextMenuWidget in quick succession, the Flutter app crashes.

Minimal Repro

import 'package:flutter/material.dart';
import 'package:super_context_menu/super_context_menu.dart';

void main() {
  runApp(const MainApp());
}

class MainApp extends StatelessWidget {
  const MainApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: ContextMenuWidget(
            menuProvider: (_) {
              return Menu(
                children: [
                  MenuAction(
                    title: 'Hi!',
                    callback: () => print('Hi!'),
                  ),
                ],
              );
            },
            child: ElevatedButton(
              child: const Text('Hello World!'),
              onPressed: () => print('Hello World!'),
            ),
          ),
        ),
      ),
    );
  }
}

Right-click the button several times in succession while moving the cursor slightly around the button's area.

Crashes with Invalid event type.

Backtrace

❯ env RUST_BACKTRACE=full flutter run -d linux
Launching lib/main.dart on Linux in debug mode...
Building Linux application...                                           
✓ Built build/linux/x64/debug/bundle/context_menu_crash
Syncing files to device Linux...                                    82ms

Flutter run key commands.
r Hot reload. 🔥🔥🔥
R Hot restart.
h List all available interactive commands.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).

A Dart VM Service on Linux is available at: http://127.0.0.1:41727/wy_Qw_xUqdk=/
The Flutter DevTools debugger and profiler on Linux is available at: http://127.0.0.1:9103?uri=http://127.0.0.1:41727/wy_Qw_xUqdk=/
thread '<unnamed>' panicked at src/./linux/common.rs:105:9:
Invalid event type
stack backtrace:
   0:     0x7fd6b20fea65 - std::backtrace_rs::backtrace::libunwind::trace::h58eed11393533053
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x7fd6b20fea65 - std::backtrace_rs::backtrace::trace_unsynchronized::h6af9bae28ebb6388
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fd6b20fea65 - std::sys_common::backtrace::_print_fmt::hb6748916642a4fb2
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7fd6b20fea65 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3692694645b1bb6a
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fd6b21218ab - core::fmt::rt::Argument::fmt::h7aa93977ba74ae0f
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/fmt/rt.rs:165:63
   5:     0x7fd6b21218ab - core::fmt::write::h5131d80b4c69b88d
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/fmt/mod.rs:1168:21
   6:     0x7fd6b20fc9bf - std::io::Write::write_fmt::h1fb327a7d8b0eb36
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/io/mod.rs:1835:15
   7:     0x7fd6b20fe83e - std::sys_common::backtrace::_print::he6ebb7b9d89f4456
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7fd6b20fe83e - std::sys_common::backtrace::print::h998d75b840f75a73
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7fd6b20ffaf9 - std::panicking::default_hook::{{closure}}::h18ec7fe6a38b9da0
  10:     0x7fd6b20ff89a - std::panicking::default_hook::hfb3f22c2e4075a6a
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/panicking.rs:298:9
  11:     0x7fd6b20fff93 - std::panicking::rust_panic_with_hook::h51af00bcb4660c4e
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/panicking.rs:795:13
  12:     0x7fd6b20ffe3b - std::panicking::begin_panic_handler::{{closure}}::h39f76aa863fbe8ce
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/panicking.rs:656:13
  13:     0x7fd6b20fef29 - std::sys_common::backtrace::__rust_end_short_backtrace::h4d10fc2251b89840
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/sys_common/backtrace.rs:171:18
  14:     0x7fd6b20ffba7 - rust_begin_unwind
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/std/src/panicking.rs:652:5
  15:     0x7fd6b1e43f33 - core::panicking::panic_fmt::h319840fcbcd912ef
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/panicking.rs:72:14
  16:     0x7fd6b1e7b203 - super_native_extensions::platform_impl::platform::common::synthesize_button_up::h705e74c58ddce1d3
                               at /home/merritt/.pub-cache/hosted/pub.dev/super_native_extensions-0.8.18/rust/src/./linux/common.rs:105:9
  17:     0x7fd6b1e94bf7 - super_native_extensions::platform_impl::platform::menu::PlatformMenuContext::show_context_menu::{{closure}}::hbceb5077530f31ff
                               at /home/merritt/.pub-cache/hosted/pub.dev/super_native_extensions-0.8.18/rust/src/./linux/menu.rs:399:27
  18:     0x7fd6b1e4cc4d - super_native_extensions::menu_manager::MenuManager::show_context_menu::{{closure}}::heea789cc9c5e354e
                               at /home/merritt/.pub-cache/hosted/pub.dev/super_native_extensions-0.8.18/rust/src/menu_manager.rs:183:49
  19:     0x7fd6b1e4f4d5 - <super_native_extensions::menu_manager::MenuManager as irondash_message_channel::async_method_handler::AsyncMethodHandler>::on_method_call::{{closure}}::h5ee14f049b352991
                               at /home/merritt/.pub-cache/hosted/pub.dev/super_native_extensions-0.8.18/rust/src/menu_manager.rs:365:22
  20:     0x7fd6b1fa01af - <core::pin::Pin<P> as core::future::future::Future>::poll::h7fdfb663f3b2a6a6
                               at /rustc/051478957371ee0084a7c0913941d2a8c4757bb9/library/core/src/future/future.rs:123:9
  21:     0x7fd6b1f5b435 - <irondash_message_channel::async_method_handler::RegisteredAsyncMethodHandlerInner<T> as irondash_message_channel::message_channel::MessageChannelDelegate>::on_message::{{closure}}::h1da545207a76a0a7
                               at /home/merritt/.cargo/registry/src/index.crates.io-6f17d22bba15001f/irondash_message_channel-0.7.0/src/async_method_handler.rs:211:59
  22:     0x7fd6b1e63370 - irondash_run_loop::task::Task<T>::poll::hafebc6df6abd6af9
                               at /home/merritt/.cargo/registry/src/index.crates.io-6f17d22bba15001f/irondash_run_loop-0.5.0/src/task.rs:48:13
  23:     0x7fd6b1e635eb - <irondash_run_loop::task::Task<T> as futures_task::arc_wake::ArcWake>::wake_by_ref::{{closure}}::h69b2e7ff1ec8282f
                               at /home/merritt/.cargo/registry/src/index.crates.io-6f17d22bba15001f/irondash_run_loop-0.5.0/src/task.rs:59:45
  24:     0x7fd6b1e497d5 - irondash_run_loop::platform::platform_impl::PlatformRunLoop::schedule::{{closure}}::h257d34192a70da1a
                               at /home/merritt/.cargo/registry/src/index.crates.io-6f17d22bba15001f/irondash_run_loop-0.5.0/src/platform/linux/mod.rs:177:13
  25:     0x7fd6b1e4a46b - irondash_run_loop::platform::platform_impl::context_add_source::trampoline::hef283ca0f9d5956c
                               at /home/merritt/.cargo/registry/src/index.crates.io-6f17d22bba15001f/irondash_run_loop-0.5.0/src/platform/linux/mod.rs:35:9
  26:     0x7fd6b2a5e0d9 - <unknown>
  27:     0x7fd6b2a57e8c - <unknown>
  28:     0x7fd6b2ab9c98 - <unknown>
  29:     0x7fd6b2a59383 - g_main_context_iteration
  30:     0x7fd6b2c2b0fd - g_application_run
  31:           0x402481 - main
                               at /home/merritt/Downloads/context_menu_crash/linux/main.cc:5:10
  32:     0x7fd6b2439088 - __libc_start_call_main
  33:     0x7fd6b243914b - __libc_start_main_impl
  34:           0x402365 - _start
  35:                0x0 - <unknown>
fatal runtime error: failed to initiate panic, error 5
Lost connection to device.

System Info

Operating System: Fedora Linux 40
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.9.11-200.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 3700X 8-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: AMD Radeon RX 580 Series
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7C56
System Version: 6.0

flutter doctor

❯ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.22.3, on Fedora Linux 40 (KDE Plasma) 6.9.11-200.fc40.x86_64, locale en_US.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Chrome - develop for the web
[✓] Linux toolchain - develop for Linux desktop
[✓] Android Studio (version 2024.1)
[✓] VS Code (version 1.91.1)
[✓] VS Code (version 1.92.0-insider)
[✓] Connected device (2 available)
[✓] Network resources

• No issues found!

[knopp]

I think this might be fixed by #394. I'm trying to get to it.

[Merrit]

Ah, you're already on top of it. Thank you! 💙