_getKeyboardKey()

in modules/keyboardshortcut/keyboardshortcut.js [181:218]

• 24 lines of code
• 14 McCabe index (conditional complexity)

    _getKeyboardKey(e) {
        // If alt is pressed a different char can be returned so this takes
        // the char from the code. It also prefixes with a colon to differentiate
        // alt combo from simple keypress.
        if (e.altKey) {
            const key = e.code.replace('Key', '');

            return `:${key}`;
        }

        // If e.key is a string, then it is assumed it already plainly states
        // the key pressed. This may not be true in all cases, such as with Edge
        // and "?", when the browser cannot properly map a key press event to a
        // keyboard key. To be safe, when a key is "Unidentified" it must be
        // further analyzed by jitsi to a key using e.which.
        if (typeof e.key === 'string' && e.key !== 'Unidentified') {
            return e.key;
        }
        if (e.type === 'keypress'
                && ((e.which >= 32 && e.which <= 126)
                    || (e.which >= 160 && e.which <= 255))) {
            return String.fromCharCode(e.which);
        }

        // try to fallback (0-9A-Za-z and QWERTY keyboard)
        switch (e.which) {
        case 27:
            return 'Escape';
        case 191:
            return e.shiftKey ? '?' : '/';
        }
        if (e.shiftKey || e.type === 'keypress') {
            return String.fromCharCode(e.which);
        }

        return String.fromCharCode(e.which).toLowerCase();

    },