зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.2 KiB
JavaScript
85 строки
2.2 KiB
JavaScript
/**
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* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/
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*/
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var xhr = new XMLHttpRequest();
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function onload(event) {
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if (event.target != xhr) {
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throw new Error("onload event.target != xhr");
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}
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if (event.target.status != 200) {
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const message = { type: "error", error: event.target.status };
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postMessage(message);
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}
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const message = { type: "load", data: xhr.responseText };
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postMessage(message);
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}
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xhr.onload = onload;
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xhr.addEventListener("load", onload);
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xhr.removeEventListener("load", onload);
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if (!xhr.onload) {
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const message = { type: "error", error: "Lost message listener!" };
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postMessage(message);
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}
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xhr.onerror = function(event) {
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if (event.target != xhr) {
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throw new Error("onerror event.target != xhr");
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}
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var message = { type: "error", error: event.target.status };
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postMessage(message);
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};
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// eslint-disable-next-line no-self-assign
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xhr.onerror = xhr.onerror;
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// eslint-disable-next-line no-self-compare
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if (!xhr.onerror || xhr.onerror != xhr.onerror) {
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throw new Error("onerror wasn't set properly");
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}
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function onprogress(event) {
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if (event.target != xhr) {
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throw new Error("onprogress event.target != xhr");
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}
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const message = {
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type: "progress",
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current: event.loaded,
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total: event.total,
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};
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postMessage(message);
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}
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xhr.addEventListener("progress", onprogress);
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xhr.addEventListener("foopety", function(event) {});
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xhr.removeEventListener("doopety", function(event) {});
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xhr.onloadend = function(event) {
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const message = { type: "loadend" };
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postMessage(message);
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};
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var upload = xhr.upload;
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upload.onprogress = function(event) {};
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upload.addEventListener("foo", function(event) {});
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upload.removeEventListener("foo", function(event) {});
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upload.addEventListener("load", function(event) {});
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upload.removeEventListener("foo", function(event) {});
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upload.onload = function(event) {
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const message = { type: "upload.load" };
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postMessage(message);
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};
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onmessage = function(event) {
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if (xhr.DONE != 4 || XMLHttpRequest.DONE != 4) {
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throw new Error("xhr constants not correct!");
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}
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if (xhr.readystate > xhr.UNSENT) {
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throw new Error("XHR already running!");
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}
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xhr.open("POST", event.data);
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xhr.send("Data to send");
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};
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