feat: add file upload component (#655)

The component allow upload the same file multiple times

packages/uhk-web/src/app/components/device/configuration/device-configuration.component.html

@@ -14,11 +14,9 @@
         </button>
     </li>
     <li>
-        <label class="btn btn-default btn-file">
+        <file-upload (fileChanged)="changeFile($event)"
-            Import device configuration
+                     label="Import device configuration">
-            <input type="file"
+        </file-upload>
-                   (change)="changeFile($event)">
-        </label>
     </li>
     <li>
         <button class="btn btn-danger"

packages/uhk-web/src/app/components/device/configuration/device-configuration.component.ts

@@ -8,6 +8,7 @@ import {
     SaveUserConfigInBinaryFileAction,
     SaveUserConfigInJsonFileAction
 } from '../../../store/actions/user-config';
+import { UploadFileData } from '../../../models/upload-file-data';
 
 @Component({
     selector: 'device-settings',
@@ -42,16 +43,7 @@ export class DeviceConfigurationComponent {
         }
     }
 
-    changeFile(event): void {
+    changeFile(data: UploadFileData): void {
-        const files = event.srcElement.files;
+        this.store.dispatch(new LoadUserConfigurationFromFileAction(data));
-        const fileReader = new FileReader();
-        fileReader.onloadend = function () {
-            const arrayBuffer = new Uint8Array(fileReader.result);
-            this.store.dispatch(new LoadUserConfigurationFromFileAction({
-                filename: event.srcElement.value,
-                data: Array.from(arrayBuffer)
-            }));
-        }.bind(this);
-        fileReader.readAsArrayBuffer(files[0]);
     }
 }

packages/uhk-web/src/app/components/device/firmware/device-firmware.component.html

@@ -30,15 +30,10 @@
                         (click)="onUpdateFirmware()">
                     Flash firmware {{ (getAgentVersionInfo$ | async).firmwareVersion }} (bundled with Agent)
                 </button>
-                <label class="btn btn-primary btn-file"
+                <file-upload [disabled]="flashFirmwareButtonDisbabled$ | async"
-                       [class.disabled]="flashFirmwareButtonDisbabled$ | async">
+                             (fileChanged)="changeFile($event)"
-                    Choose firmware file and flash it
+                             accept=".tar.bz2"
-                    <input id="firmware-file-select"
+                             label="Choose firmware file and flash it"></file-upload>
-                           type="file"
-                           accept=".tar.bz2"
-                           [disabled]="flashFirmwareButtonDisbabled$ | async"
-                           (change)="changeFile($event)">
-                </label>
             </p>
         </div>
 

packages/uhk-web/src/app/components/device/firmware/device-firmware.component.ts

@@ -15,6 +15,7 @@ import {
 } from '../../../store';
 import { UpdateFirmwareAction, UpdateFirmwareWithAction } from '../../../store/actions/device';
 import { XtermLog } from '../../../models/xterm-log';
+import { UploadFileData } from '../../../models/upload-file-data';
 
 @Component({
     selector: 'device-firmware',
@@ -48,19 +49,8 @@ export class DeviceFirmwareComponent implements OnDestroy {
         this.store.dispatch(new UpdateFirmwareAction());
     }
 
-    changeFile(event): void {
+    changeFile(data: UploadFileData): void {
-        const files = event.srcElement.files;
+        this.store.dispatch(new UpdateFirmwareWithAction(data.data));
-
-        if (files.length === 0) {
-            return;
-        }
-
-        const fileReader = new FileReader();
-        fileReader.onloadend = function () {
-            const arrayBuffer = new Uint8Array(fileReader.result);
-            this.store.dispatch(new UpdateFirmwareWithAction(Array.prototype.slice.call(arrayBuffer)));
-        }.bind(this);
-        fileReader.readAsArrayBuffer(files[0]);
     }
 
     openFirmwareGitHubIssuePage(event): void {

packages/uhk-web/src/app/components/file-upload/file-upload.component.html

@@ -0,0 +1,9 @@
+<label class="btn btn-primary btn-file"
+       [class.disabled]="disabled">
+    {{ label }}
+    <input #inputControl
+           type="file"
+           [accept]="accept"
+           [disabled]="disabled"
+           (change)="changeFile($event)">
+</label>

packages/uhk-web/src/app/components/file-upload/file-upload.component.ts

@@ -0,0 +1,36 @@
+import { ChangeDetectionStrategy, Component, EventEmitter, Input, Output } from '@angular/core';
+
+import { UploadFileData } from '../../models/upload-file-data';
+
+@Component({
+    selector: 'file-upload',
+    templateUrl: './file-upload.component.html',
+    changeDetection: ChangeDetectionStrategy.OnPush
+})
+export class FileUploadComponent {
+    @Input() label = 'Select file';
+    @Input() disabled: boolean;
+    @Input() accept: string;
+
+    @Output() fileChanged = new EventEmitter<UploadFileData>();
+
+    changeFile(event): void {
+        const files = event.srcElement.files;
+
+        if (files.length === 0) {
+            return;
+        }
+
+        const fileReader = new FileReader();
+        fileReader.onloadend = function () {
+            const arrayBuffer = new Uint8Array(fileReader.result);
+            const target = event.target || event.srcElement || event.currentTarget;
+            target.value = null;
+            this.fileChanged.emit({
+                filename: event.srcElement.value,
+                data: Array.from(arrayBuffer)
+            });
+        }.bind(this);
+        fileReader.readAsArrayBuffer(files[0]);
+    }
+}

packages/uhk-web/src/app/components/file-upload/index.ts

@@ -0,0 +1 @@
+export * from './file-upload.component';

packages/uhk-web/src/app/shared.module.ts

@@ -107,6 +107,7 @@ import { SliderWrapperComponent } from './components/slider-wrapper/slider-wrapp
 import { EditableTextComponent } from './components/editable-text/editable-text.component';
 import { Autofocus } from './directives/autofocus/autofocus.directive';
 import { UhkDeviceBootloaderNotActiveGuard } from './services/uhk-device-bootloader-not-active.guard';
+import { FileUploadComponent } from './components/file-upload';
 
 @NgModule({
     declarations: [
@@ -179,7 +180,8 @@ import { UhkDeviceBootloaderNotActiveGuard } from './services/uhk-device-bootloa
         EditableTextComponent,
         Autofocus,
         RestoreConfigurationComponent,
-        RecoveryModeComponent
+        RecoveryModeComponent,
+        FileUploadComponent
     ],
     imports: [
         CommonModule,