ng-devui
Version:
DevUI components based on Angular
118 lines • 16.9 kB
JavaScript
import { UploadStatus } from './file-uploader.types';
export class FileUploader {
constructor(file, uploadOptions) {
this.file = file;
this.uploadOptions = uploadOptions;
this.percentage = 0;
this.file = file;
this.uploadOptions = uploadOptions;
this.status = UploadStatus.preLoad;
}
sendCommonHandle(uploadFiles) {
const { uri, method, headers, authToken, authTokenHeader, additionalParameter, fileFieldName, withCredentials, responseType } = this.uploadOptions;
const authTokenHeader_ = authTokenHeader || 'Authorization';
const fileFieldName_ = fileFieldName || 'file';
this.xhr = new XMLHttpRequest();
this.xhr.open(method || 'POST', uri);
if (withCredentials) {
this.xhr.withCredentials = withCredentials;
}
if (responseType) {
this.xhr.responseType = responseType;
}
if (authToken) {
this.xhr.setRequestHeader(authTokenHeader_, authToken);
}
if (headers) {
Object.keys(headers).forEach((key) => {
this.xhr.setRequestHeader(key, headers[key]);
});
}
this.xhr.upload.onprogress = (e) => {
this.percentage = Math.round((e.loaded * 100) / e.total);
};
const formData = uploadFiles && uploadFiles.length
? this.oneTimeUploadFiles(fileFieldName_, additionalParameter, uploadFiles)
: this.parallelUploadFiles(fileFieldName_, additionalParameter);
this.xhr.send(formData);
this.status = UploadStatus.uploading;
this.xhr.onabort = () => {
this.status = UploadStatus.preLoad;
this.xhr = null;
};
}
sendErrorAndLoadHandle(resolve, reject, isMultiple = false) {
this.xhr.onerror = () => {
this.response = this.xhr.response;
this.status = UploadStatus.failed;
if (isMultiple) {
reject({ file: this.file, response: this.xhr.response, status: UploadStatus.failed });
}
else {
reject({ file: this.file, response: this.xhr.response });
}
};
this.xhr.onload = () => {
if (this.xhr.readyState === 4 && this.xhr.status >= 200 && this.xhr.status < 300) {
this.response = this.xhr.response;
this.status = UploadStatus.uploaded;
if (isMultiple) {
resolve({ file: this.file, response: this.xhr.response, status: UploadStatus.uploaded });
}
else {
resolve({ file: this.file, response: this.xhr.response });
}
}
else {
this.response = this.xhr.response;
this.status = UploadStatus.failed;
if (isMultiple) {
reject({ file: this.file, response: this.xhr.response, status: UploadStatus.failed });
}
else {
reject({ file: this.file, response: this.xhr.response });
}
}
};
}
send(uploadFiles) {
return new Promise((resolve, reject) => {
this.sendCommonHandle(uploadFiles);
this.sendErrorAndLoadHandle(resolve, reject);
});
}
sendMultiple(uploadFiles) {
return new Promise((resolve, reject) => {
this.sendCommonHandle(uploadFiles);
this.sendErrorAndLoadHandle(resolve, reject, true);
});
}
parallelUploadFiles(fileFieldName_, additionalParameter) {
const formData = new FormData();
formData.append(fileFieldName_, this.file, this.file.name);
if (additionalParameter) {
Object.keys(additionalParameter).forEach((key) => {
formData.append(key, additionalParameter[key]);
});
}
return formData;
}
oneTimeUploadFiles(fileFieldName_, additionalParameter, uploadFiles) {
const formData = new FormData();
uploadFiles.forEach((element) => {
formData.append(fileFieldName_, element.file, element.file.name);
if (additionalParameter) {
Object.keys(additionalParameter).forEach((key) => {
formData.append(key, additionalParameter[key]);
});
}
});
return formData;
}
cancel() {
if (this.xhr) {
this.xhr.abort();
}
}
}
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{ IUploadOptions, UploadStatus } from './file-uploader.types';\n\nexport class FileUploader {\n  private xhr: XMLHttpRequest;\n  public status: UploadStatus;\n  public response: any;\n  public percentage = 0;\n\n  constructor(public file: File, public uploadOptions: IUploadOptions) {\n    this.file = file;\n    this.uploadOptions = uploadOptions;\n    this.status = UploadStatus.preLoad;\n  }\n\n  private sendCommonHandle(uploadFiles?) {\n    const { uri, method, headers, authToken, authTokenHeader, additionalParameter, fileFieldName, withCredentials, responseType } =\n      this.uploadOptions;\n    const authTokenHeader_ = authTokenHeader || 'Authorization';\n    const fileFieldName_ = fileFieldName || 'file';\n\n    this.xhr = new XMLHttpRequest();\n    this.xhr.open(method || 'POST', uri);\n\n    if (withCredentials) {\n      this.xhr.withCredentials = withCredentials;\n    }\n\n    if (responseType) {\n      this.xhr.responseType = responseType;\n    }\n\n    if (authToken) {\n      this.xhr.setRequestHeader(authTokenHeader_, authToken);\n    }\n\n    if (headers) {\n      Object.keys(headers).forEach((key) => {\n        this.xhr.setRequestHeader(key, headers[key]);\n      });\n    }\n\n    this.xhr.upload.onprogress = (e) => {\n      this.percentage = Math.round((e.loaded * 100) / e.total);\n    };\n\n    const formData =\n      uploadFiles && uploadFiles.length\n        ? this.oneTimeUploadFiles(fileFieldName_, additionalParameter, uploadFiles)\n        : this.parallelUploadFiles(fileFieldName_, additionalParameter);\n\n    this.xhr.send(formData);\n    this.status = UploadStatus.uploading;\n\n    this.xhr.onabort = () => {\n      this.status = UploadStatus.preLoad;\n      this.xhr = null;\n    };\n  }\n\n  private sendErrorAndLoadHandle(resolve, reject, isMultiple = false) {\n    this.xhr.onerror = () => {\n      this.response = this.xhr.response;\n      this.status = UploadStatus.failed;\n      if (isMultiple) {\n        reject({ file: this.file, response: this.xhr.response, status: UploadStatus.failed });\n      } else {\n        reject({ file: this.file, response: this.xhr.response });\n      }\n    };\n\n    this.xhr.onload = () => {\n      if (this.xhr.readyState === 4 && this.xhr.status >= 200 && this.xhr.status < 300) {\n        this.response = this.xhr.response;\n        this.status = UploadStatus.uploaded;\n        if (isMultiple) {\n          resolve({ file: this.file, response: this.xhr.response, status: UploadStatus.uploaded });\n        } else {\n          resolve({ file: this.file, response: this.xhr.response });\n        }\n      } else {\n        this.response = this.xhr.response;\n        this.status = UploadStatus.failed;\n        if (isMultiple) {\n          reject({ file: this.file, response: this.xhr.response, status: UploadStatus.failed });\n        } else {\n          reject({ file: this.file, response: this.xhr.response });\n        }\n      }\n    };\n  }\n\n  public send(uploadFiles?): Promise<{ file: File; response: any }> {\n    return new Promise((resolve, reject) => {\n      this.sendCommonHandle(uploadFiles);\n      this.sendErrorAndLoadHandle(resolve, reject);\n    });\n  }\n\n  public sendMultiple(uploadFiles?): Promise<{ file: File; response: any; status: UploadStatus }> {\n    return new Promise((resolve, reject) => {\n      this.sendCommonHandle(uploadFiles);\n      this.sendErrorAndLoadHandle(resolve, reject, true);\n    });\n  }\n\n  public parallelUploadFiles(fileFieldName_, additionalParameter) {\n    const formData = new FormData();\n    formData.append(fileFieldName_, this.file, this.file.name);\n    if (additionalParameter) {\n      Object.keys(additionalParameter).forEach((key: string) => {\n        formData.append(key, additionalParameter[key]);\n      });\n    }\n    return formData;\n  }\n\n  public oneTimeUploadFiles(fileFieldName_, additionalParameter, uploadFiles) {\n    const formData = new FormData();\n    uploadFiles.forEach((element) => {\n      formData.append(fileFieldName_, element.file, element.file.name);\n      if (additionalParameter) {\n        Object.keys(additionalParameter).forEach((key: string) => {\n          formData.append(key, additionalParameter[key]);\n        });\n      }\n    });\n    return formData;\n  }\n\n  public cancel() {\n    if (this.xhr) {\n      this.xhr.abort();\n    }\n  }\n}\n"]}