| 1 | /**
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| 2 | * HTTP Response Header 事件回调函数的参数
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| 3 | * @typedef {Object} HeadersReceivedParam
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| 4 | * @property {Object} header 开发者服务器返回的 HTTP Response Header
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| 5 | */
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| 6 | /**
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| 7 | * HTTP Response Header 事件的回调函数
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| 8 | * @callback HeadersReceivedCallback
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| 9 | * @param {HeadersReceivedParam} res 参数
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| 10 | */
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| 11 | /**
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| 12 | * 进度变化回调函数的参数
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| 13 | * @typedef {Object} ProgressUpdateParam
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| 14 | * @property {number} progress 进度百分比
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| 15 | * @property {number} [totalBytesWritten] 已经下载的数据长度，单位 Bytes
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| 16 | * @property {number} [totalBytesSent] 已经上传的数据长度，单位 Bytes
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| 17 | * @property {number} [totalBytesExpectedToWrite] 预期需要下载的数据总长度，单位 Bytes
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| 18 | * @property {number} [totalBytesExpectedToSend] 预期需要上传的数据总长度，单位 Bytes
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| 19 | */
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| 20 | /**
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| 21 | * 进度变化事件的回调函数
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| 22 | * @callback ProgressUpdateCallback
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| 23 | * @param {ProgressUpdateParam} res 参数
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| 24 | */
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| 25 | const NETWORK_TIMEOUT = 60000;
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| 26 | const XHR_STATS = {
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| 27 | UNSENT: 0,
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| 28 | OPENED: 1,
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| 29 | HEADERS_RECEIVED: 2,
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| 30 | LOADING: 3,
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| 31 | DONE: 4 // The operation is complete.
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| 32 | };
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| 33 | /**
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| 34 | * 设置xhr的header
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| 35 | * @param {XMLHttpRequest} xhr
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| 36 | * @param {Object} header
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| 37 | */
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| 38 | const setHeader = (xhr, header) => {
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| 39 | let headerKey;
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| 40 | for (headerKey in header) {
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| 41 | xhr.setRequestHeader(headerKey, header[headerKey]);
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| 42 | }
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| 43 | };
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| 44 | /**
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| 45 | * 将 blob url 转化为文件
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| 46 | * @param {string} url 要转换的 blob url
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| 47 | * @returns {Promise<File>}
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| 48 | */
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| 49 | const convertObjectUrlToBlob = url => {
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| 50 | return new Promise((resolve, reject) => {
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| 51 | const xhr = new XMLHttpRequest();
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| 52 | xhr.open('GET', url, true);
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| 53 | xhr.responseType = 'blob';
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| 54 | xhr.withCredentials = true;
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| 55 | xhr.onload = function () {
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| 56 | if (this.status === 200) {
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| 57 | resolve(this.response);
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| 58 | }
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| 59 | else {
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| 60 | /* eslint-disable prefer-promise-reject-errors */
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| 61 | reject({ status: this.status });
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| 62 | }
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| 63 | };
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| 64 | xhr.send();
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| 65 | });
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| 66 | };
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| 67 |
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| 68 | export { NETWORK_TIMEOUT, XHR_STATS, convertObjectUrlToBlob, setHeader };
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| 69 | //# sourceMappingURL=utils.js.map
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