chore(build): ng2 style guide applied,
- build process updated - systemjs bundler added BREAKING CHANGES: - directives and selectors renamed to ng2FileSelect and ng2FileDrop
This commit is contained in:
Dmitriy Shekhovtsov
384
components/file-upload/file-uploader.class.ts
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384
components/file-upload/file-uploader.class.ts
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@@ -0,0 +1,384 @@
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import {FileLikeObject} from './file-like-object.class';
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import {FileItem} from './file-item.class';
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function isFile(value:any):boolean {
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return (File && value instanceof File);
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}
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// function isFileLikeObject(value:any) {
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// return value instanceof FileLikeObject;
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// }
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export class FileUploader {
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public url:string;
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public authToken:string;
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public isUploading:boolean = false;
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public queue:Array<any> = [];
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public progress:number = 0;
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public autoUpload:boolean = false;
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public isHTML5:boolean = true;
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public removeAfterUpload:boolean = false;
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public queueLimit:number;
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public _nextIndex:number = 0;
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public filters:Array<any> = [];
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public options:any;
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private _failFilterIndex:number;
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public constructor(options:any) {
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// Object.assign(this, options);
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this.url = options.url;
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this.authToken = options.authToken;
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this.filters.unshift({name: 'queueLimit', fn: this._queueLimitFilter});
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this.filters.unshift({name: 'folder', fn: this._folderFilter});
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}
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public addToQueue(files:any[], options:any, filters:any):void {
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let list:any[] = [];
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for (let file of files) {
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list.push(file);
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}
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let arrayOfFilters = this._getFilters(filters);
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let count = this.queue.length;
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let addedFileItems:any[] = [];
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list.map((some:any) => {
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let temp = new FileLikeObject(some);
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if (this._isValidFile(temp, arrayOfFilters, options)) {
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let fileItem = new FileItem(this, some, options);
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addedFileItems.push(fileItem);
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this.queue.push(fileItem);
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this._onAfterAddingFile(fileItem);
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} else {
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let filter = arrayOfFilters[this._failFilterIndex];
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this._onWhenAddingFileFailed(temp, filter, options);
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}
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});
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if (this.queue.length !== count) {
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this._onAfterAddingAll(addedFileItems);
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this.progress = this._getTotalProgress();
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}
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this._render();
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if (this.autoUpload) {
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this.uploadAll();
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}
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}
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public removeFromQueue(value:any):void {
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let index = this.getIndexOfItem(value);
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let item = this.queue[index];
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if (item.isUploading) {
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item.cancel();
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}
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this.queue.splice(index, 1);
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this.progress = this._getTotalProgress();
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}
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public clearQueue():void {
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while (this.queue.length) {
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this.queue[0].remove();
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}
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this.progress = 0;
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}
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public uploadItem(value:FileItem):void {
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let index = this.getIndexOfItem(value);
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let item = this.queue[index];
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let transport = this.isHTML5 ? '_xhrTransport' : '_iframeTransport';
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item._prepareToUploading();
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if (this.isUploading) {
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return;
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}
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this.isUploading = true;
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(this as any)[transport](item);
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}
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public cancelItem(value:any):void {
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let index = this.getIndexOfItem(value);
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let item = this.queue[index];
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let prop = this.isHTML5 ? '_xhr' : '_form';
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if (item && item.isUploading) {
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item[prop].abort();
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}
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}
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public uploadAll():void {
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let items = this.getNotUploadedItems().filter((item:any) => !item.isUploading);
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if (!items.length) {
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return;
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}
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items.map((item:any) => item._prepareToUploading());
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items[0].upload();
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}
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public cancelAll():void {
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let items = this.getNotUploadedItems();
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items.map((item:any) => item.cancel());
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}
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public isFile(value:any):boolean {
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return isFile(value);
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}
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public isFileLikeObject(value:any):boolean {
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return value instanceof FileLikeObject;
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}
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public getIndexOfItem(value:any):number {
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return typeof value === 'number' ? value : this.queue.indexOf(value);
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}
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public getNotUploadedItems():Array<any> {
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return this.queue.filter((item:any) => !item.isUploaded);
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}
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public getReadyItems():Array<any> {
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return this.queue
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.filter((item:any) => (item.isReady && !item.isUploading))
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.sort((item1:any, item2:any) => item1.index - item2.index);
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}
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public destroy():void {
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return void 0;
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/*forEach(this._directives, (key) => {
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forEach(this._directives[key], (object) => {
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object.destroy();
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});
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});*/
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}
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public onAfterAddingAll(fileItems:any):any {
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return {fileItems};
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}
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public onAfterAddingFile(fileItem:any):any {
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return {fileItem};
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}
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public onWhenAddingFileFailed(item:any, filter:any, options:any):any {
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return {item, filter, options};
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}
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public onBeforeUploadItem(fileItem:any):any {
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return {fileItem};
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}
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public onProgressItem(fileItem:any, progress:any):any {
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return {fileItem, progress};
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}
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public onProgressAll(progress:any):any {
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return {progress};
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}
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public onSuccessItem(item:any, response:any, status:any, headers:any):any {
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return {item, response, status, headers};
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}
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public onErrorItem(item:any, response:any, status:any, headers:any):any {
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return {item, response, status, headers};
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}
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public onCancelItem(item:any, response:any, status:any, headers:any):any {
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return {item, response, status, headers};
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}
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public onCompleteItem(item:any, response:any, status:any, headers:any):any {
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return {item, response, status, headers};
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}
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public onCompleteAll():any {
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return void 0;
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}
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public _onErrorItem(item:any, response:any, status:any, headers:any):void {
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item._onError(response, status, headers);
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this.onErrorItem(item, response, status, headers);
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}
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public _onCompleteItem(item:any, response:any, status:any, headers:any):void {
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item._onComplete(response, status, headers);
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this.onCompleteItem(item, response, status, headers);
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let nextItem = this.getReadyItems()[0];
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this.isUploading = false;
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if (nextItem) {
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nextItem.upload();
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return;
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}
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this.onCompleteAll();
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this.progress = this._getTotalProgress();
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this._render();
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}
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protected _headersGetter(parsedHeaders:any):any {
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return (name:any) => {
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if (name) {
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return parsedHeaders[name.toLowerCase()] || void 0;
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}
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return parsedHeaders;
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};
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}
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protected _xhrTransport(item:any):any {
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let xhr = item._xhr = new XMLHttpRequest();
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let form = new FormData();
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this._onBeforeUploadItem(item);
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// todo
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/*item.formData.map(obj => {
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obj.map((value, key) => {
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form.append(key, value);
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});
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});*/
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if (typeof item._file.size !== 'number') {
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throw new TypeError('The file specified is no longer valid');
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}
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form.append(item.alias, item._file, item.file.name);
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xhr.upload.onprogress = (event:any) => {
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let progress = Math.round(event.lengthComputable ? event.loaded * 100 / event.total : 0);
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this._onProgressItem(item, progress);
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};
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xhr.onload = () => {
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let headers = this._parseHeaders(xhr.getAllResponseHeaders());
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let response = this._transformResponse(xhr.response, headers);
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let gist = this._isSuccessCode(xhr.status) ? 'Success' : 'Error';
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let method = '_on' + gist + 'Item';
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(this as any)[method](item, response, xhr.status, headers);
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this._onCompleteItem(item, response, xhr.status, headers);
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};
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xhr.onerror = () => {
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let headers = this._parseHeaders(xhr.getAllResponseHeaders());
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let response = this._transformResponse(xhr.response, headers);
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this._onErrorItem(item, response, xhr.status, headers);
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this._onCompleteItem(item, response, xhr.status, headers);
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};
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xhr.onabort = () => {
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let headers = this._parseHeaders(xhr.getAllResponseHeaders());
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let response = this._transformResponse(xhr.response, headers);
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this._onCancelItem(item, response, xhr.status, headers);
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this._onCompleteItem(item, response, xhr.status, headers);
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};
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xhr.open(item.method, item.url, true);
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xhr.withCredentials = item.withCredentials;
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// todo
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/*item.headers.map((value, name) => {
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xhr.setRequestHeader(name, value);
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});*/
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if (this.authToken) {
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xhr.setRequestHeader('Authorization', this.authToken);
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}
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xhr.send(form);
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this._render();
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}
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private _getTotalProgress(value:number = 0):number {
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if (this.removeAfterUpload) {
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return value;
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}
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let notUploaded = this.getNotUploadedItems().length;
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let uploaded = notUploaded ? this.queue.length - notUploaded : this.queue.length;
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let ratio = 100 / this.queue.length;
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let current = value * ratio / 100;
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return Math.round(uploaded * ratio + current);
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}
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private _getFilters(filters:any):any {
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if (!filters) {
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return this.filters;
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}
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if (Array.isArray(filters)) {
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return filters;
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}
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let names = filters.match(/[^\s,]+/g);
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return this.filters
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.filter((filter:any) => names.indexOf(filter.name) !== -1);
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}
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private _render():any {
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return void 0;
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// todo: ?
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}
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private _folderFilter(item:any):boolean {
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return !!(item.size || item.type);
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}
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private _queueLimitFilter():boolean {
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return this.queue.length < this.queueLimit;
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}
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private _isValidFile(file:any, filters:any, options:any):boolean {
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this._failFilterIndex = -1;
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return !filters.length ? true : filters.every((filter:any) => {
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this._failFilterIndex++;
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return filter.fn.call(this, file, options);
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});
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}
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private _isSuccessCode(status:any):boolean {
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return (status >= 200 && status < 300) || status === 304;
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}
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/* tslint:disable */
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private _transformResponse(response:any, headers:any):any {
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// todo: ?
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/*var headersGetter = this._headersGetter(headers);
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forEach($http.defaults.transformResponse, (transformFn) => {
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response = transformFn(response, headersGetter);
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});*/
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return response;
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}
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/* tslint:enable */
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private _parseHeaders(headers:any):any {
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let parsed:any = {};
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let key:any;
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let val:any;
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let i:any;
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if (!headers) {
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return parsed;
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}
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headers.split('\n').map((line:any) => {
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i = line.indexOf(':');
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key = line.slice(0, i).trim().toLowerCase();
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val = line.slice(i + 1).trim();
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if (key) {
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parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
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}
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});
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return parsed;
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}
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/*private _iframeTransport(item:any) {
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// todo: implement it later
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}*/
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private _onWhenAddingFileFailed(item:any, filter:any, options:any):void {
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this.onWhenAddingFileFailed(item, filter, options);
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}
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private _onAfterAddingFile(item:any):void {
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this.onAfterAddingFile(item);
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}
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private _onAfterAddingAll(items:any):void {
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this.onAfterAddingAll(items);
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}
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private _onBeforeUploadItem(item:any):void {
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item._onBeforeUpload();
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this.onBeforeUploadItem(item);
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}
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private _onProgressItem(item:any, progress:any):void {
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let total = this._getTotalProgress(progress);
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this.progress = total;
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item._onProgress(progress);
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this.onProgressItem(item, progress);
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this.onProgressAll(total);
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this._render();
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}
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/* tslint:disable */
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private _onSuccessItem(item:any, response:any, status:any, headers:any):void {
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item._onSuccess(response, status, headers);
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this.onSuccessItem(item, response, status, headers);
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}
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/* tslint:enable */
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private _onCancelItem(item:any, response:any, status:any, headers:any):void {
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item._onCancel(response, status, headers);
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this.onCancelItem(item, response, status, headers);
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}
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}
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Block a user