Virtual Keyboard and WebAssembly

Renio

I need to work whit a virtual keyboard in my WebAssembly project.
in qt examples there is only one example showed here:
https://doc.qt.io/qt-6/qtvirtualkeyboard-index.html
Now, I build this example in Desktop modality and works fine.
But when I build it in WebAssembly, this program don't work!
When I click on lineinput item, the virtual Keyboard appair for a very short time, then disappair.
But if I click on dialog body the keyboard reappair magically and disappair.
First Question: is this the correct behaviour?
I created a similar project using QWidget. this program works in Desktop modality.
Don't work in webaasembly modality.
The Keyboard is never dispalyed.
I tried to change the the windowModality properties and nothing is changed.
https://forum.qt.io/topic/123986/modal-dialogs-break-virtual-keyboard
Second Question: Wich is the correct mode to use the qtvirtualkeyboard in a WebAssembly project
In the tecnical guide,
https://doc.qt.io/qt-6/technical-guide.html
isn't explained how to include this plugin into the project

#include "DialogSandBox.h"

#include <QApplication>

int main(int argc, char *argv[])
{
    qputenv("QT_IM_MODULE", QByteArray("qtvirtualkeyboard"));
    QApplication a(argc, argv);
    DialogSandBox w;
    w.show();
    return a.exec();
}

matthk

look here

It's still unsolved.

lorn.potter

In Qt 6.4 the native virtual keyboard on mobile has been improved, so you won't necessarily need the qt virtual keyboard for wasm.

cactus

@lorn-potter im using 6.4 , on android browsers keyboard keyboard comes up but no typing. and for ios keyboard not open !!!

SteHie

@lorn-potter Same Problem. Use 6.4.1 wasm and native Keyboard. In textfild Keyboard occurs, but no press is moving to qt... Do you have a solution?
Stefan

brett-dalton

I'm still experiencing this problem in 6.5, and I'm checking 6.6 now. Has anyone managed to get virtual keyboard input working? I can force it to appear, but it does not send events to input fields. I get a "input method is not set" error message in the console, which suggests the virtual keyboard does not detect the field is focused. I'm testing mostly in firefox/chrome on desktop, but when I tested on mobile the behavior was the same.

lorn.potter

@brett-dalton
The Qt virtual keyboard works with widget apps. I am currenty looking at a bug where it is not working with declarative apps, but that one is that it doesn't show at all.

brett-dalton

@lorn-potter

Yes I've been working with a QT Quick app. As you say, the keyboard doesn't appear normally, but I forced it to be visible. In my App.qml file I have modified the auto-generated InputPanel:

    InputPanel {
        id: inputPanel
        property bool showKeyboard :  active
        //y: showKeyboard ? parent.height - height : parent.height
        y: parent.height - height
        // ...
    }

Not that this fixes the keyboard. It still can't be used to enter text. But when I press a key I see an error "input method is not set" in the browser console. I'm not familiar with the input system, but maybe that's useful info for your debugging,

I will try to see if I can get the keyboard working with a QML widget in a widget app. Maybe that will be a suitable workaround.

SteHie

@brett-dalton
Did you find a solution?