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// Wait for a string to be posted to this worker.
// Create a blob containing this string, and then
// post back a blob URL pointing to the blob.
var postStringInBlob = function (blobObject) {
var fileReader = new FileReaderSync();
var result = fileReader.readAsText(blobObject);
postMessage(result);
};
self.addEventListener("message", e => {
if (e.data.what === "blobify") {
try {
let blobURL = URL.createObjectURL(new Blob([e.data.message]));
postMessage({ blobURL });
} catch (ex) {
postMessage({ error: ex.message });
}
return;
}
if (e.data.what === "deblobify") {
if ("error" in e.data.message) {
postMessage(e.data.message);
return;
}
let blobURL = e.data.message.blobURL,
xhr = new XMLHttpRequest();
try {
xhr.open("GET", blobURL, true);
xhr.onload = function () {
postStringInBlob(xhr.response);
};
xhr.onerror = function () {
postMessage({ error: "xhr error" });
};
xhr.responseType = "blob";
xhr.send();
} catch (ex) {
postMessage({ error: ex.message });
}
return;
}
postMessage("Invalid operation!");
});