Fyne: Mac: Unable to input `@` from a German keyboard into `Widget.Entry`

[terwey]

Hi,

during testing of a small application it became clear it's not possible to enter an @ character from a German keyboard on Mac OS X.

The German keyboard layout does not have a dedicated key for the @ symbol but instead used Option + l (lower-case l).

It can be tested by adding the German layout as a keyboard layout and selecting it. In any input field you can then enter text (Shift+2 on German is now ") and when the entry for an @ is made (Option + l) it simply doesn't do anything.

It seems to wait for further input. On the American layout things like Option + u u produce ü correctly.

Additional info:
Updated today with go get, last log:

commit 8664941296690c67601c71712ec44b7beb091ead (HEAD -> develop, origin/develop, origin/HEAD)
Author: Andy Williams <[email protected]>
Date:   Wed May 1 22:29:17 2019 +0100

    Don't add a button bar if the form has no buttons

[andydotxyz]

Resolved with c7f595b

[terwey]

I just pulled the latest changes again, and I can see in the git log that this commit is present however the bug remains. I am still unable to enter that symbol using left option + l.

Is there some way I can send more information on how this is happening?

[andydotxyz]

Please run fyne_demo and tap "Input" input the keyboard combination and send us a screenshot of what happens :). Thanks

[terwey]

Hi,

that seems to have found the problem. It registers the left-option as right-alt:

[lucasepe]

Hi, I have the same problem with the '@' on italian keyboard and MacOS. Here a sample code:

package main

import (
    "fyne.io/fyne"
    "fyne.io/fyne/app"
    "fyne.io/fyne/theme"
    "fyne.io/fyne/widget"
)

func main() {
    app := app.New()
    app.Settings().SetTheme(theme.LightTheme())

    label := widget.NewLabel("")
    label.Alignment = fyne.TextAlignTrailing

    entry := widget.NewEntry()
    entry.SetPlaceHolder("Enter your text")
    entry.OnChanged = func(s string) {
        label.SetText(s)
    }

    multi := widget.NewMultiLineEntry()

    win := app.NewWindow("Hello World")
    win.SetContent(widget.NewVBox(
        entry,
        label,
        multi,
        widget.NewButton("Quit", func() {
            app.Quit()
        }),
    ))

    win.Resize(fyne.Size{Width: 500, Height: 200})
    win.ShowAndRun()
}

and the go.mod

module fynetutorial

go 1.12

require (
    fyne.io/fyne v1.0.1
    github.com/go-gl/gl v0.0.0-20190320180904-bf2b1f2f34d7 // indirect
    github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1 // indirect
    github.com/josephspurrier/goversioninfo v0.0.0-20190209210621-63e6d1acd3dd // indirect
    github.com/spf13/afero v1.2.2 // indirect
    github.com/srwiley/oksvg v0.0.0-20190414003808-c520f0a6c5cc // indirect
    github.com/stretchr/objx v0.2.0 // indirect
    golang.org/x/crypto v0.0.0-20190506204251-e1dfcc566284 // indirect
    golang.org/x/image v0.0.0-20190507092727-e4e5bf290fec // indirect
    golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c // indirect
    golang.org/x/sys v0.0.0-20190507053917-2953c62de483 // indirect
    golang.org/x/text v0.3.2 // indirect
    golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c // indirect
)

The same code on Ubuntu/Linux works fine: Italian Keyboard and the '@' is rendered while fail on MacOS.

By the way... I love fyne! great job thank you!

[lucor]

@lucasepe the fix should be available into the develop branch.
It'd great if you have a chance to update your sample to use the develop branch and let us know if that fixes (testing both left and right option key).

@terwey I'm unable to replicate, see screenshot below:
.
Is it possible to provide more information about your enviroment like OS version and go version ?

[lucasepe]

@lucor tested with:

require fyne.io/fyne v1.0.2-0.20190505212842-942ba7ac04bf

and works great with both left and right option keys. Great job!

[lucor]

@lucasepe Great, thanks!

[terwey]

Hi,

I redid the test today. I suddenly realised that because I use an external keyboard... maybe just maybe it is because of that.
I did the test twice, once with the laptop keyboard, and once with the external.
The external is a Cherry USB keyboard _but_ I changed the keyboard modifier keys where cmd and alt are swapped. Maybe this confuses Fyne too.

However, I just tested and even with the built-in keyboard set to German I am unable to make an @.

$ go version go version go1.12.1 darwin/amd64

git commit 942ba7ac04bfb8f7e692a10a32ab847ccb839b6d for fyne

[andydotxyz]

That commit is before the fix was applied. Execute:

go get -u fyne.io/fyne

and try again.

[terwey]

```commit 263a14d18b4bd12ab8644a61bd5b9de9840162f7 (HEAD -> develop, origin/develop, origin/HEAD)
Author: Andy Williams [e-mail]
Date: Wed May 8 23:23:15 2019 +0100

Add a Select box widget

This offer a choice of options in a smaller space than the Radio widget.
Fixes #21

```

[andydotxyz]

Thanks. Is this the internal keyboard?

[terwey]

Yes, internal Macbook keyboard (US) using the German layout

On 10. May 2019, at 19:25, Andy Williams [e-mail] wrote:

Thanks. Is this the internal keyboard?

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