(function() {
    function init() {
        if (typeof QWebChannel === 'undefined' || typeof qt === 'undefined' || !qt.webChannelTransport) {
            setTimeout(init, 100);
            return;
        }

        new QWebChannel(qt.webChannelTransport, function(channel) {
            window.passwordHelper = channel.objects.passwordHelper;
            
            function captureLogin() {
                var passwords = document.querySelectorAll('input[type="password"]');
                passwords.forEach(function(pass) {
                    var form = pass.form;
                    if (form && !form.dataset.passwordHooked) {
                        form.dataset.passwordHooked = "true";
                        
                        var handler = function() {
                            var user = form.querySelector('input[type="text"], input[type="email"], input:not([type])');
                            if (user && user.value && pass.value) {
                                passwordHelper.saveRequest(window.location.hostname, user.value, pass.value);
                            }
                        };
                        
                        form.addEventListener('submit', handler);
                        
                        var buttons = form.querySelectorAll('button, input[type="submit"], input[type="button"]');
                        buttons.forEach(function(btn) {
                            btn.addEventListener('click', handler);
                        });
                    }
                });
            }

            var observer = new MutationObserver(function(mutations) {
                captureLogin();
            });
            observer.observe(document.body, { childList: true, subtree: true });
            captureLogin();
        });
    }
    init();
})();