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November 4, 2019 22:59
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Recibe un archivo desde una pestaña (parent.html) mediante FileReader y postMessage
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Child Window</title> | |
| <script type="text/javascript"> | |
| //esta funcion escucha eventos desde parent.html para recibir los datos del archivo | |
| window.addEventListener('message', function(e) { | |
| //convierto los datos en formato JSON a su "formato original" (objeto de javascript) | |
| var message = JSON.parse(e.data); | |
| if (message.type == "file") { | |
| //muesto el archivo en el html de child.html | |
| document.getElementById('file-content').innerText = message.data; | |
| } | |
| }); | |
| //envio la señal de "ready" a parent.html | |
| window.opener.postMessage("ready", '*'); | |
| </script> | |
| </head> | |
| <body> | |
| <div id="file-content"></div> | |
| </body> | |
| </html> |
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