forked from mystiq/hydrogen-web
46 lines
1.6 KiB
HTML
46 lines
1.6 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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</head>
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<body>
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<a id="link" href="#">Download</a>
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<script type="text/javascript">
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var link = document.getElementById("link");
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function downloadBlob(blob, filename) {
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var url = URL.createObjectURL(blob);
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link.href = url;
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link.download = filename;
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link.click();
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URL.revokeObjectURL(url);
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}
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function toBase64(buffer) {
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const bytes = new Uint8Array(buffer);
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let binaryStr = "";
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for (let i = 0; i < bytes.byteLength; i++) {
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binaryStr += String.fromCharCode(bytes[i]);
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}
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return btoa(binaryStr);
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}
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function downloadBuffer(buffer, mimeType, filename) {
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var url = "data:" + mimeType + ";base64," + toBase64(buffer);
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link.href = url;
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link.download = filename;
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link.click();
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}
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window.addEventListener("message", async function(event) {
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if (event.origin === window.location.origin) {
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if (event.data.type === "downloadBuffer") {
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await downloadBuffer(event.data.buffer, event.data.mimeType, event.data.filename);
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} else if (event.data.type === "downloadBlob") {
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await downloadBlob(event.data.blob, event.data.filename);
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}
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}
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});
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</script>
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</body>
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</html>
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