webview/examples/html.js at main · webviewjs/webview · GitHub

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// const requireScript = require('node:module').createRequire(__filename);
// const { Application } = requireScript('../index.js');
const { Application } = require('../index.js');

const app = new Application();
const window = app.createBrowserWindow();

let count = 0;

const webview = window.createWebview({
  html: `<!DOCTYPE html>
    <html>
        <head>
            <title>Webview</title>
        </head>
        <body>
            <h1 id="output">${count}</h1>
            <button id="btn">Click me!</button>
            <script>
                btn.onclick = function send() {
                    window.ipc.postMessage('count');
                }
            </script>
        </body>
    </html>
    `,
  preload: `window.onIpcMessage = function(data) {
        const output = document.getElementById('output');
        output.innerText = \`\${data}\`;
        return \`The current count is: \${data}\`
    }`,
});

if (!webview.isDevtoolsOpen()) webview.openDevtools();

webview.onIpcMessage(() => {
  webview.evaluateScriptWithCallback(`onIpcMessage("${++count}")`, (err, result) => {
    if (err) {
      console.error('Error evaluating script:', err);
    } else {
      console.log('[webview] >>', result);
    }
  });
});

app.run();