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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1" /> | |
| <title>Window 1</title> | |
| <style> | |
| body { | |
| font-family: Arial, sans-serif; | |
| margin: 20px; | |
| } | |
| button { | |
| margin-right: 10px; | |
| padding: 10px 15px; | |
| font-size: 16px; | |
| border-radius: 10px; | |
| background-color: #007bff; | |
| color: white; | |
| border: none; | |
| cursor: pointer; | |
| &:hover { | |
| background-color: #0056b3; | |
| } | |
| } | |
| textarea { | |
| width: 100%; | |
| font-family: monospace; | |
| font-size: 14px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <button id="btn-send">Send message</button> | |
| <button id="btn-open">Open window</button> | |
| <button id="btn-close">Close window</button> | |
| <h2>Messages</h2> | |
| <textarea | |
| id="message" | |
| rows="10" | |
| cols="50" | |
| placeholder="Messages will appear here..." | |
| ></textarea> | |
| <script> | |
| const messageArea = document.querySelector("#message"); | |
| let paymentWindow = null; | |
| document.querySelector("#btn-open").addEventListener("click", () => { | |
| paymentWindow = window.open("index.html", "paymentWindow"); | |
| }); | |
| document.querySelector("#btn-send").addEventListener("click", () => { | |
| if (paymentWindow) { | |
| paymentWindow.postMessage("Hello from Window 1", "*"); | |
| } else if (window.opener) { | |
| window.opener.postMessage("Hello from Window 2", "*"); | |
| } else { | |
| messageArea.value += "No window to send message to.\n"; | |
| } | |
| }); | |
| document.querySelector("#btn-close").addEventListener("click", () => { | |
| if (paymentWindow) { | |
| paymentWindow.close(); | |
| paymentWindow = null; | |
| } else { | |
| messageArea.value += "No window to close.\n"; | |
| } | |
| }); | |
| window.addEventListener("message", (event) => { | |
| messageArea.value += `Received: ${event.data}\n`; | |
| }); | |
| if (window.opener) { | |
| setTimeout(() => { | |
| window.opener.postMessage("Hello from Window 2", "*"); | |
| }, 2000); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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