Method getJavaScript

examples/webview_desktop_app.cpp:380–501

    }

    std::string getJavaScript()
    {
        return R"JS(
let autoUpdateInterval = null;

async function getSystemInfo() {
    try {
        const info = await cpp_getSystemInfo();
        const infoDiv = document.getElementById ('systemInfo');
        infoDiv.className = 'info-box success';
        infoDiv.textContent = `Platform: ${info.platform}
Timestamp: ${info.timestamp}
Features: ${info.features.join (', ')}`;
    } catch(error) {
        showError ('systemInfo', 'Failed to get system info: ' + error.message);
    }
}

async function getCurrentTime() {
    try {
        const time = await cpp_getCurrentTime();
        const timeDiv = document.getElementById ('timeDisplay');
        timeDiv.className = 'info-box success';
        const date = new Date (parseInt (time) * 1000);
        timeDiv.textContent = `Current time: ${date.toLocaleString()}
Unix timestamp: ${time}`;
    } catch(error) {
        showError ('timeDisplay', 'Failed to get current time: ' + error.message);
    }
}

async function calculate() {
    try {
        const num1 = parseFloat (document.getElementById ('num1').value) || 0;
        const operation = document.getElementById ('operation').value;
        const num2 = parseFloat (document.getElementById ('num2').value) || 0;

        const result = await cpp_calculate (num1, operation, num2);
        const resultDiv = document.getElementById ('calcResult');
        resultDiv.className = 'info-box success';
        resultDiv.textContent = `${result.expression} = ${result.value}`;
    } catch(error) {
        showError ('calcResult', 'Calculation failed: ' + error.message);
    }
}

async function sendAlert() {
    try {
        const message = document.getElementById ('alertMessage').value || 'Hello from JavaScript!';
        await cpp_showAlert ([message]);

        // Show confirmation in the UI
        const alertSection = document.querySelector ('input#alertMessage').parentElement;
        const feedback = document.createElement ('div');
        feedback.className = 'info-box success';
        feedback.textContent = `Alert sent to C++: "${message}"`;
        feedback.style.marginTop = '10px';