onscreenkeyboard.cpp

#include "onscreenkeyboard.h"
#include <QStandardPaths>
#include <QtGlobal>

QStringList OnScreenKeyboard::candidates()
{
#ifdef Q_OS_LINUX
    // Prefer Wayland-native keyboards on Wayland: an X11 keyboard there can
    // start (reporting success) and then immediately exit.
    const bool onWayland = !qgetenv("WAYLAND_DISPLAY").isEmpty();
    return onWayland
        ? QStringList{"onboard", "squeekboard", "wvkbd", "maliit-keyboard",
                      "florence", "kvkbd", "matchbox-keyboard"}
        : QStringList{"onboard", "florence", "xvkbd", "kvkbd", "matchbox-keyboard"};
#else
    return {};
#endif
}

QString OnScreenKeyboard::findInstalled()
{
    for (const QString& kb : candidates())
        if (!QStandardPaths::findExecutable(kb).isEmpty())
            return kb;
    return {};
}

QString OnScreenKeyboard::windowsOskPath()
{
#ifdef Q_OS_WIN
    const QString sysRoot = QString::fromLocal8Bit(qgetenv("SystemRoot"));
    return (sysRoot.isEmpty() ? QStringLiteral("C:\\Windows") : sysRoot)
           + QStringLiteral("\\System32\\osk.exe");
#else
    return {};
#endif
}