feat(fileUploader): Added queueMaxSizeLimit, to limit the file size of all items in the uploadqueue.

.travis.yml

@@ -1,13 +1,11 @@
 language: node_js
 node_js:
-  - "10.15.0"
-
-sudo: required
-services:
-  - xvfb
+  - "6"
 
 before_install:
-  - google-chrome-stable --headless --disable-gpu --remote-debugging-port=9222 http://localhost &
+  - export CHROME_BIN=chromium-browser
+  - export DISPLAY=:99.0
+  - sh -e /etc/init.d/xvfb start
 
 script:
   - npm run pretest
@@ -17,7 +15,6 @@ after_success:
   - ./node_modules/.bin/codecov
 
 addons:
-  chrome: stable
   firefox: "latest"
   apt:
     sources:

README.md

@@ -67,6 +67,7 @@ Easy to use Angular2 directives for files upload ([demo](http://valor-software.g
   5. `formatDataFunction` - Function to modify the request body. 'DisableMultipart' must be 'true' for this function to be called.
   6. `formatDataFunctionIsAsync` - Informs if the function sent in 'formatDataFunction' is asynchronous. Defaults to false.
   7. `parametersBeforeFiles` - States if additional parameters should be appended before or after the file. Defaults to false.
+  8. `queueMaxSizeLimit` - States the maximum allowed size (in bytes) of all files in the queue that are going to be uploaded.
 
 ### Events
 

karma.conf.js

@@ -48,7 +48,6 @@ module.exports = function (config) {
 
   if (process.env.TRAVIS) {
     configuration.browsers = ['Chrome_travis_ci'];
-    configuration.singleRun = true;
   }
 
   if (process.env.SAUCE) {

package.json

@@ -84,8 +84,8 @@
     "jasmine-core": "2.5.2",
     "jasmine-data-provider": "2.2.0",
     "jasmine-spec-reporter": "3.2.0",
-    "karma": "^4.2.0",
-    "karma-chrome-launcher": "^3.1.0",
+    "karma": "1.4.0",
+    "karma-chrome-launcher": "^2.0.0",
     "karma-cli": "^1.0.1",
     "karma-coverage-istanbul-reporter": "^1.3.0",
     "karma-jasmine": "^1.0.2",

src/file-upload/file-drop.directive.ts

@@ -1,14 +1,12 @@
-import { Directive, ElementRef, EventEmitter, HostListener, Input, Output } from '@angular/core';
+import { Directive, EventEmitter, ElementRef, HostListener, Input, Output } from '@angular/core';
 
-import { FileUploader, FileUploaderOptions, FilterFunction } from './file-uploader.class';
+import { FileUploader, FileUploaderOptions } from './file-uploader.class';
 
 @Directive({ selector: '[ng2FileDrop]' })
 export class FileDropDirective {
   @Input() public uploader: FileUploader;
-  // tslint:disable-next-line:no-input-rename
-  @Input('ng2FileFilter') public filter: FilterFunction['fn'];
   @Output() public fileOver: EventEmitter<any> = new EventEmitter();
-  @Output() public onFileDrop: EventEmitter<FileList> = new EventEmitter<FileList>();
+  @Output() public onFileDrop: EventEmitter<File[]> = new EventEmitter<File[]>();
 
   protected element: ElementRef;
 
@@ -24,7 +22,7 @@ export class FileDropDirective {
     return {};
   }
 
-  @HostListener('drop', ['$event'])
+  @HostListener('drop', [ '$event' ])
   public onDrop(event: any): void {
     let transfer = this._getTransfer(event);
     if (!transfer) {
@@ -32,17 +30,14 @@ export class FileDropDirective {
     }
 
     let options = this.getOptions();
-    let filters = typeof this.filter === 'function' ? [{
-      name: 'ng2FileDropDirectiveFilter',
-      fn: this.filter
-    }, ...options.filters] : this.getFilters();
+    let filters = this.getFilters();
     this._preventAndStop(event);
     this.uploader.addToQueue(transfer.files, options, filters);
     this.fileOver.emit(false);
     this.onFileDrop.emit(transfer.files);
   }
 
-  @HostListener('dragover', ['$event'])
+  @HostListener('dragover', [ '$event' ])
   public onDragOver(event: any): void {
     let transfer = this._getTransfer(event);
     if (!this._haveFiles(transfer.types)) {
@@ -54,10 +49,10 @@ export class FileDropDirective {
     this.fileOver.emit(true);
   }
 
-  @HostListener('dragleave', ['$event'])
+  @HostListener('dragleave', [ '$event' ])
   public onDragLeave(event: any): any {
     if ((this as any).element) {
-      if (event.currentTarget === (this as any).element[0]) {
+      if (event.currentTarget === (this as any).element[ 0 ]) {
         return;
       }
     }
@@ -66,11 +61,11 @@ export class FileDropDirective {
     this.fileOver.emit(false);
   }
 
-  protected _getTransfer(event: any): DragEvent['dataTransfer'] {
+  protected _getTransfer(event: any): any {
     return event.dataTransfer ? event.dataTransfer : event.originalEvent.dataTransfer; // jQuery fix;
   }
 
-  protected _preventAndStop(event: Event): any {
+  protected _preventAndStop(event: any): any {
     event.preventDefault();
     event.stopPropagation();
   }

src/file-upload/file-select.directive.ts

@@ -1,12 +1,10 @@
-import { Directive, ElementRef, EventEmitter, HostListener, Input, Output } from '@angular/core';
+import { Directive, EventEmitter, ElementRef, Input, HostListener, Output } from '@angular/core';
 
-import { FileUploader, FilterFunction } from './file-uploader.class';
+import { FileUploader } from './file-uploader.class';
 
 @Directive({ selector: '[ng2FileSelect]' })
 export class FileSelectDirective {
   @Input() public uploader: FileUploader;
-  // tslint:disable-next-line:no-input-rename
-  @Input('ng2FileFilter') public filter: FilterFunction['fn'];
   @Output() public onFileSelected: EventEmitter<File[]> = new EventEmitter<File[]>();
 
   protected element: ElementRef;
@@ -31,10 +29,7 @@ export class FileSelectDirective {
   public onChange(): any {
     let files = this.element.nativeElement.files;
     let options = this.getOptions();
-    let filters = typeof this.filter === 'function' ? [{
-      name: 'ng2FileSelectDirectiveFilter',
-      fn: this.filter
-    }, ...options.filters] : this.getFilters();
+    let filters = this.getFilters();
 
     this.uploader.addToQueue(files, options, filters);
     this.onFileSelected.emit(files);

src/file-upload/file-uploader.class.ts

@@ -12,11 +12,11 @@ export interface Headers {
   value: string;
 }
 
-export type ParsedResponseHeaders = { [headerFieldName: string]: string };
+export type ParsedResponseHeaders = { [ headerFieldName: string ]: string };
 
-export interface FilterFunction {
-  name: string;
-  fn(this: FileUploader, item?: FileLikeObject, options?: FileUploaderOptions, queueIndex?: number): boolean | Promise<boolean>;
+export type FilterFunction = {
+  name: string,
+  fn: (item?: FileLikeObject, options?: FileUploaderOptions) => boolean
 };
 
 export interface FileUploaderOptions {
@@ -30,12 +30,13 @@ export interface FileUploaderOptions {
   authToken?: string;
   maxFileSize?: number;
   queueLimit?: number;
+  queueMaxSizeLimit? : number;
   removeAfterUpload?: boolean;
   url?: string;
   disableMultipart?: boolean;
   itemAlias?: string;
   authTokenHeader?: string;
-  additionalParameter?: { [key: string]: any };
+  additionalParameter?: { [ key: string ]: any };
   parametersBeforeFiles?: boolean;
   formatDataFunction?: Function;
   formatDataFunctionIsAsync?: boolean;
@@ -77,6 +78,10 @@ export class FileUploader {
     this.autoUpload = this.options.autoUpload;
     this.options.filters.unshift({ name: 'queueLimit', fn: this._queueLimitFilter });
 
+    if (this.options.queueMaxSizeLimit) {
+      this.options.filters.unshift({ name: 'queueMaxSizeLimit', fn: this._queueMaxSizeLimitFilter });
+    }
+
     if (this.options.maxFileSize) {
       this.options.filters.unshift({ name: 'fileSize', fn: this._fileSizeFilter });
     }
@@ -89,39 +94,35 @@ export class FileUploader {
       this.options.filters.unshift({ name: 'mimeType', fn: this._mimeTypeFilter });
     }
 
-    for (const q of this.queue) {
-      q.url = this.options.url;
+    for (let i = 0; i < this.queue.length; i++) {
+      this.queue[ i ].url = this.options.url;
     }
   }
 
-  public async addToQueue(files: FileList, options?: FileUploaderOptions, filters?: FilterFunction[] | string): Promise<void> {
+  public addToQueue(files: File[], options?: FileUploaderOptions, filters?: FilterFunction[] | string): void {
     let list: File[] = [];
-    // tslint:disable-next-line:prefer-for-of
-    for (let i = 0; i < files.length; i++) {
-      list.push(files[i]);
+    for (let file of files) {
+      list.push(file);
     }
-
     let arrayOfFilters = this._getFilters(filters);
     let count = this.queue.length;
     let addedFileItems: FileItem[] = [];
-    let idx = 0;
-
-    for (const some of list) {
+    list.map((some: File) => {
       if (!options) {
         options = this.options;
       }
 
       let temp = new FileLikeObject(some);
-      if (await this._isValidFile(temp, arrayOfFilters, options, idx++)) {
+      if (this._isValidFile(temp, arrayOfFilters, options)) {
         let fileItem = new FileItem(this, some, options);
         addedFileItems.push(fileItem);
         this.queue.push(fileItem);
         this._onAfterAddingFile(fileItem);
       } else {
-        let filter = arrayOfFilters[this._failFilterIndex];
+        let filter = arrayOfFilters[ this._failFilterIndex ];
         this._onWhenAddingFileFailed(temp, filter, options);
       }
-    }
+    });
     if (this.queue.length !== count) {
       this._onAfterAddingAll(addedFileItems);
       this.progress = this._getTotalProgress();
@@ -134,7 +135,7 @@ export class FileUploader {
 
   public removeFromQueue(value: FileItem): void {
     let index = this.getIndexOfItem(value);
-    let item = this.queue[index];
+    let item = this.queue[ index ];
     if (item.isUploading) {
       item.cancel();
     }
@@ -144,26 +145,26 @@ export class FileUploader {
 
   public clearQueue(): void {
     while (this.queue.length) {
-      this.queue[0].remove();
+      this.queue[ 0 ].remove();
     }
     this.progress = 0;
   }
 
   public uploadItem(value: FileItem): void {
     let index = this.getIndexOfItem(value);
-    let item = this.queue[index];
+    let item = this.queue[ index ];
     let transport = this.options.isHTML5 ? '_xhrTransport' : '_iframeTransport';
     item._prepareToUploading();
     if (this.isUploading) {
       return;
     }
     this.isUploading = true;
-    (this as any)[transport](item);
+    (this as any)[ transport ](item);
   }
 
   public cancelItem(value: FileItem): void {
     let index = this.getIndexOfItem(value);
-    let item = this.queue[index];
+    let item = this.queue[ index ];
     let prop = this.options.isHTML5 ? item._xhr : item._form;
     if (item && item.isUploading) {
       prop.abort();
@@ -176,7 +177,7 @@ export class FileUploader {
       return;
     }
     items.map((item: FileItem) => item._prepareToUploading());
-    items[0].upload();
+    items[ 0 ].upload();
   }
 
   public cancelAll(): void {
@@ -279,7 +280,7 @@ export class FileUploader {
   public _onCompleteItem(item: FileItem, response: string, status: number, headers: ParsedResponseHeaders): void {
     item._onComplete(response, status, headers);
     this.onCompleteItem(item, response, status, headers);
-    let nextItem = this.getReadyItems()[0];
+    let nextItem = this.getReadyItems()[ 0 ];
     this.isUploading = false;
     if (nextItem) {
       nextItem.upload();
@@ -293,7 +294,7 @@ export class FileUploader {
   protected _headersGetter(parsedHeaders: ParsedResponseHeaders): any {
     return (name: any): any => {
       if (name) {
-        return parsedHeaders[name.toLowerCase()] || void 0;
+        return parsedHeaders[ name.toLowerCase() ] || void 0;
       }
       return parsedHeaders;
     };
@@ -320,7 +321,7 @@ export class FileUploader {
       // For AWS, Additional Parameters must come BEFORE Files
       if (this.options.additionalParameter !== undefined) {
         Object.keys(this.options.additionalParameter).forEach((key: string) => {
-          let paramVal = this.options.additionalParameter[key];
+          let paramVal = this.options.additionalParameter[ key ];
           // Allow an additional parameter to include the filename
           if (typeof paramVal === 'string' && paramVal.indexOf('{{file_name}}') >= 0) {
             paramVal = paramVal.replace('{{file_name}}', item.file.name);
@@ -345,7 +346,7 @@ export class FileUploader {
       let response = this._transformResponse(xhr.response, headers);
       let gist = this._isSuccessCode(xhr.status) ? 'Success' : 'Error';
       let method = '_on' + gist + 'Item';
-      (this as any)[method](item, response, xhr.status, headers);
+      (this as any)[ method ](item, response, xhr.status, headers);
       this._onCompleteItem(item, response, xhr.status, headers);
     };
     xhr.onerror = () => {
@@ -375,11 +376,11 @@ export class FileUploader {
     if (this.authToken) {
       xhr.setRequestHeader(this.authTokenHeader, this.authToken);
     }
-    xhr.onreadystatechange = function (): void {
-      if (xhr.readyState === XMLHttpRequest.DONE) {
-        that.response.emit(xhr.responseText);
+    xhr.onreadystatechange = function () {
+      if (xhr.readyState == XMLHttpRequest.DONE) {
+        that.response.emit(xhr.responseText)
       }
-    };
+    }
     if (this.options.formatDataFunctionIsAsync) {
       sendable.then(
         (result: any) => xhr.send(JSON.stringify(result))
@@ -424,18 +425,23 @@ export class FileUploader {
     return this.options.queueLimit === undefined || this.queue.length < this.options.queueLimit;
   }
 
-  protected async _isValidFile(file: FileLikeObject, filters: FilterFunction[], options: FileUploaderOptions, queueIndex: number): Promise<boolean> {
-    this._failFilterIndex = -1;
-
-    for (const filter of filters) {
-      this._failFilterIndex++;
-
-      if (!(await Promise.resolve(filter.fn.call(this, file, options, queueIndex)))) {
-        return false;
-      }
+  protected _queueMaxSizeLimitFilter(item: FileLikeObject): boolean {    
+    let queueFileSize = 0;    
+    let queueNotProcessedItems = this.queue.filter(queuedItem => !(queuedItem.isSuccess || queuedItem.isCancel || queuedItem.isError));
+    if(queueNotProcessedItems.length>0)
+    {
+      // total size of all queued items that are going to be uploaded
+      queueFileSize = queueNotProcessedItems.map(queuedItem => queuedItem.file.size).reduce((fileSizeA,fileSizeB)=> fileSizeA + fileSizeB);
     }
+    return this.options.queueMaxSizeLimit === undefined || (queueFileSize + item.size) < this.options.queueMaxSizeLimit;
+  }
 
-    return true;
+  protected _isValidFile(file: FileLikeObject, filters: FilterFunction[], options: FileUploaderOptions): boolean {
+    this._failFilterIndex = -1;
+    return !filters.length ? true : filters.every((filter: FilterFunction) => {
+      this._failFilterIndex++;
+      return filter.fn.call(this, file, options);
+    });
   }
 
   protected _isSuccessCode(status: number): boolean {
@@ -459,7 +465,7 @@ export class FileUploader {
       key = line.slice(0, i).trim().toLowerCase();
       val = line.slice(i + 1).trim();
       if (key) {
-        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+        parsed[ key ] = parsed[ key ] ? parsed[ key ] + ', ' + val : val;
       }
     });
     return parsed;

src/spec/file-select.directive.spec.ts

@@ -63,6 +63,7 @@ describe('Directive: FileSelectDirective', () => {
     expect(options.isHTML5).toBeTruthy();
     expect(options.removeAfterUpload).toBeFalsy();
     expect(options.disableMultipart).toBeFalsy();
+    expect(options.queueMaxSizeLimit).toBeUndefined();
   });
 
   it('can get filters', () => {