81 lines
2.3 KiB
Plaintext
81 lines
2.3 KiB
Plaintext
class StudioUploadAdapter {
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constructor(loader) {
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// CKEditor5's FileLoader instance.
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this.loader = loader;
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// URL where to send files.
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this.url = `${API_ROOT_URL}/data/images/0/upload`;
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}
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// Starts the upload process.
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upload() {
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return new Promise((resolve, reject) => {
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this._initRequest();
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this._initListeners(resolve, reject);
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this._sendRequest();
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});
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}
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// Aborts the upload process.
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abort() {
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if (this.xhr) {
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this.xhr.abort();
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}
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}
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// Example implementation using XMLHttpRequest.
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_initRequest() {
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const xhr = (this.xhr = new XMLHttpRequest());
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xhr.open("POST", this.url, true);
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xhr.responseType = "json";
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}
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// Initializes XMLHttpRequest listeners.
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_initListeners(resolve, reject) {
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const xhr = this.xhr;
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const loader = this.loader;
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const genericErrorText = "Couldn't upload file:" + ` ${loader.file.name}.`;
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xhr.addEventListener("error", () => reject(genericErrorText));
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xhr.addEventListener("abort", () => reject());
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xhr.addEventListener("load", () => {
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const response = xhr.response;
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console.log(response);
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if (!response || response.error) {
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return reject(
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response && response.error ? response.error.message : genericErrorText
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);
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}
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// If the upload is successful, resolve the upload promise with an object containing
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// at least the "default" URL, pointing to the image on the server.
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resolve({
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default: getDownloadUrl(response[0]),
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});
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});
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if (xhr.upload) {
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xhr.upload.addEventListener("progress", (evt) => {
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if (evt.lengthComputable) {
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loader.uploadTotal = evt.total;
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loader.uploaded = evt.loaded;
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}
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});
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}
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}
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// Prepares the data and sends the request.
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_sendRequest() {
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const data = new FormData();
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let that = this;
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let file = that.loader.file;
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// set jwt token if required.
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that.xhr.setRequestHeader("Authorization", authHeader().Authorization);
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file.then(function (result) {
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//wait for the promise to finish then continue
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data.append("upload", result);
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that.xhr.send(data);
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});
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}
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}
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/**
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* return full image url with responsed JSON object
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*
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* @param {*} item
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*/
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function getDownloadUrl(item) {
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return encodeURI(`${API_ROOT_URL}/download/images/${item.linkId}`);
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} |