TapGestureRecognizer ButtonMask always return 0.

[TobiasJoergensen]

Description

I need to be able to detect a right click on a MAUI application. I have been following the example supplied by the documentation Define the button mask. When I try to debug the example provided in the steps to reproduce, it always return 0 in the Buttons property of the event args.

Steps to Reproduce

Create a view with following XAML:

<Label Text="Some title">
    <Label.GestureRecognizers>
        <TapGestureRecognizer Tapped="OnTapGestureRecognizerTapped" Buttons="Primary,Secondary" />
    </Label.GestureRecognizers>
</Label>

Then in the code behind file, intercept the event with the following:

private void OnTapGestureRecognizerTapped(object sender, TappedEventArgs e)
{
}

Link to public reproduction project repository

No response

Version with bug

8.0.80 SR8

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

Windows 11

Did you find any workaround?

My current requirement is that I need to show a context menu based on a right click. It seems that adding a context menu to my DataTemplate is a workaround. So in short, the context menu correctly intercepts a right click.

Relevant log output

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

Open similar issues:

• [regression/8.0.3] TapGestureRecognizer no longer works on Button (#19099), similarity score: 0.71

Closed similar issues:

• Missing Buttons-Property in TapGestureRecognizer-Control (#12815), similarity score: 0.79
• [Win][Mac] Secondary ButtonMask odd behaviour (#10464), similarity score: 0.74
• ClickGestureRecognizer is not functional (#16739), similarity score: 0.71
• [regression/8.0.0] TapGestureRecognizers not working in maui embedded (#17948), similarity score: 0.71

Note: You can give me feedback by thumbs upping or thumbs downing this comment.

[ndarlington]

I've also worked around it by using two tap gesture recognizers, each set to Primary and Secondary, and utilizing the CommandParameter to reference each one to pass it into the event handler.

E.g.

<TapGestureRecognizer Tapped="TapGestureRecognizer_OnTapped" Buttons="Primary" CommandParameter="{Binding Source={RelativeSource Self}, Path=Buttons}"/>
<TapGestureRecognizer Tapped="TapGestureRecognizer_OnTapped" Buttons="Secondary" CommandParameter="{Binding Source={RelativeSource Self}, Path=Buttons}"/>

You can then cast TappedEventArgs.Parameter to a ButtonsMask to see which button was used in the event handler.

However, a mouse with >2 buttons will also register all other buttons as Primary too. Such as scroll-wheel middle click, or thumb buttons (Mouse4 and Mouse5), all still register through the Primary.

Additionally, this continues to be an issue in .NET MAUI 9, and also affects the Windows 10 platform.