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Code Issues Projects Releases Wiki Activity

Do not request upload token if there's an upload in process

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This commit is contained in:
Pavel Djundik 2019-08-25 20:23:32 +03:00
parent 04e1e004da
commit 554c602230
1 changed files with 13 additions and 13 deletions
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26
client/js/upload.js
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@ -115,8 +115,9 @@ class Uploader {
this.fileQueue.push(file);
}
// if the queue was empty and we added some files to it, start uploading them
if (wasQueueEmpty && this.fileQueue.length > 0) {
// if the queue was empty and we added some files to it, and there currently
// is no upload in process, request a token to start the upload process
if (wasQueueEmpty && this.xhr === null && this.fileQueue.length > 0) {
this.requestToken();
}
}
@ -132,10 +133,9 @@ class Uploader {
uploadNextFileInQueue(token) {
const file = this.fileQueue.shift();
const xhr = new XMLHttpRequest();
this.xhr = xhr;
this.xhr = new XMLHttpRequest();
xhr.upload.addEventListener(
this.xhr.upload.addEventListener(
"progress",
(e) => {
const percent = Math.floor((e.loaded / e.total) * 1000) / 10;
@ -144,26 +144,26 @@ class Uploader {
false
);
xhr.onreadystatechange = () => {
if (xhr.readyState === XMLHttpRequest.DONE) {
this.xhr = null;
this.xhr.onreadystatechange = () => {
if (this.xhr.readyState === XMLHttpRequest.DONE) {
let response;
try {
response = JSON.parse(xhr.responseText);
response = JSON.parse(this.xhr.responseText);
} catch (err) {
// This is just a safe guard and should not happen if server doesn't throw any errors.
// Browsers break the HTTP spec by aborting the request without reading any response data,
// if there is still data to be uploaded. Servers will only error in extreme cases like bad
// authentication or server-side errors.
response = {
error: `Upload aborted: HTTP ${xhr.status}`,
error: `Upload aborted: HTTP ${this.xhr.status}`,
};
}
this.handleResponse(response);
this.xhr = null;
// this file was processed, if we still have files in the queue, upload the next one
if (this.fileQueue.length > 0) {
this.requestToken();
@ -173,8 +173,8 @@ class Uploader {
const formData = new FormData();
formData.append("file", file);
xhr.open("POST", `uploads/new/${token}`);
xhr.send(formData);
this.xhr.open("POST", `uploads/new/${token}`);
this.xhr.send(formData);
}
handleResponse(response) {