javaScriptHandler.cpp

// Note: javaScriptHandler * api is a variable in the MainWindow class

void MainWindow::on_webView_loadProgress(int progress){

    ui->urlLineEdit->setVisible(false);
    ui->progressBar->setValue(progress);
    QWebFrame * frame= ui->webView->page()->mainFrame();

    if(progress == 100){

        // Additional Line of code below
        frame->addToJavaScriptWindowObject("bridgeOperations", api);
        api->injectJavaScript(frame);

        ui->urlLineEdit->setVisible(true);
        ui->urlLineEdit->setText(ui->webView->url().toString());
    }
}