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Felix-Dynamsoftfelixindrawan
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feat: update angular sample and docs (#182)
* feat: update angular sample and docs * fix: formatting * add file names --------- Co-authored-by: felixindrawan <[email protected]>
1 parent 89a2972 commit 841727c

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+566
-149
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‎hello-world/angular/README.md‎

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‎hello-world/angular/package.json‎

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{
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"name": "dbrjs-sample-angular",
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"name": "dbrjs-angular-sample",
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"version": "0.0.0",
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"scripts": {
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"ng": "ng",
@@ -36,4 +36,4 @@
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"karma-jasmine-html-reporter": "~2.1.0",
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"typescript": "~5.4.2"
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}
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}
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}

‎hello-world/angular/src/app/app.component.css‎

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.title {
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display: flex;
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justify-content: center;
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align-items: center;
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margin-top: 20px;
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}
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/* .title .title-text {
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} */
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.title .title-logo {
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width: 60px;
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height: 60px;
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animation: retate 5s infinite linear;
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}
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.top-btns {
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width: 30%;
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margin: 20px auto;
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border-left: transparent;
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}
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@media screen and (max-width: 500px) {
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@media screen and (max-width: 800px) {
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.top-btns {
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width: 70%;
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width: 70%;
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}
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}
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@keyframes retate {
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from {
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transform: rotate(0deg);
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transform: rotate(0deg);
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}
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to {
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transform: rotate(360deg);
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transform: rotate(360deg);
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}
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}
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}

‎hello-world/angular/src/app/app.component.html‎

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@@ -3,8 +3,8 @@
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<h2 class='title-text'>Hello World for Angular</h2>
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</div>
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<div class='top-btns'>
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<button (click)="switchMode('video')" [ngStyle]="{'background-color': mode === 'video' ? 'rgb(255,174,55)' : 'white'}">Video Capture</button>
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<button (click)="switchMode('image')" [ngStyle]="{'background-color': mode === 'image' ? 'rgb(255,174,55)' : 'white'}">Image Capture</button>
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<button (click)="switchMode('video')" [ngStyle]="{'background-color': mode === 'video' ? 'rgb(255,174,55)' : 'white'}">Decode Video</button>
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<button (click)="switchMode('image')" [ngStyle]="{'background-color': mode === 'image' ? 'rgb(255,174,55)' : 'white'}">Decode Image</button>
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</div>
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@if (mode === 'video') {
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<app-video-capture></app-video-capture>

‎hello-world/angular/src/app/app.component.ts‎

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@@ -9,12 +9,12 @@ import { VideoCaptureComponent } from './video-capture/video-capture.component';
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standalone: true,
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templateUrl: './app.component.html',
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styleUrl: './app.component.css',
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imports: [NgStyle, ImageCaptureComponent, VideoCaptureComponent]
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imports: [NgStyle, ImageCaptureComponent, VideoCaptureComponent],
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})
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export class AppComponent {
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title = 'dbrjs-sample-angular';
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title = 'dbrjs-angular-sample';
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mode: string = "video";
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mode: string = 'video';
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switchMode(value: string) {
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this.mode = value;

‎hello-world/angular/src/app/dynamsoft.config.ts‎

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import { CoreModule } from "dynamsoft-core";
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import { LicenseManager } from "dynamsoft-license";
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import "dynamsoft-barcode-reader";
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import { CoreModule } from 'dynamsoft-core';
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import { LicenseManager } from 'dynamsoft-license';
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import 'dynamsoft-barcode-reader';
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// Configures the paths where the .wasm files and other necessary resources for modules are located.
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CoreModule.engineResourcePaths = {
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std: 'https://cdn.jsdelivr.net/npm/[email protected]/dist/',
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dip: 'https://cdn.jsdelivr.net/npm/[email protected]/dist/',
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core: 'https://cdn.jsdelivr.net/npm/[email protected]/dist/',
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license: 'https://cdn.jsdelivr.net/npm/[email protected]/dist/',
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cvr: 'https://cdn.jsdelivr.net/npm/[email protected]/dist/',
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dbr: 'https://cdn.jsdelivr.net/npm/[email protected]/dist/',
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dce: 'https://cdn.jsdelivr.net/npm/[email protected]/dist/',
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};
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/** LICENSE ALERT - README
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* To use the library, you need to first specify a license key using the API "initLicense()" as shown below.
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*/
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9-
LicenseManager.initLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9");
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LicenseManager.initLicense('DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9', true);
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/**
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* You can visit https://www.dynamsoft.com/customer/license/trialLicense?utm_source=github&product=dbr&package=js to get your own trial license good for 30 days.
@@ -15,15 +26,5 @@ LicenseManager.initLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9");
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* LICENSE ALERT - THE END
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*/
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CoreModule.engineResourcePaths = {
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std: "https://cdn.jsdelivr.net/npm/[email protected]/dist/",
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dip: "https://cdn.jsdelivr.net/npm/[email protected]/dist/",
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core: "https://cdn.jsdelivr.net/npm/[email protected]/dist/",
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license: "https://cdn.jsdelivr.net/npm/[email protected]/dist/",
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cvr: "https://cdn.jsdelivr.net/npm/[email protected]/dist/",
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dbr: "https://cdn.jsdelivr.net/npm/[email protected]/dist/",
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dce: "https://cdn.jsdelivr.net/npm/[email protected]/dist/"
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};
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// Optional. Preload "BarcodeReader" module for reading barcodes. It will save time on the initial decoding by skipping the module loading.
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CoreModule.loadWasm(["DBR"]);
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CoreModule.loadWasm(['DBR']);

‎hello-world/angular/src/app/image-capture/image-capture.component.css‎

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.capture-img {
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.image-capture-container {
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width: 100%;
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height: 100%;
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font-family:Consolas,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New, monospace;
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font-family: Consolas, Monaco, Lucida Console, Liberation Mono,
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DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace;
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}
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.capture-img .img-ipt {
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.image-capture-container .input-container {
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width: 80%;
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height: 100%;
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display: flex;
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margin: 0 auto;
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}
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.capture-img .result-area {
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.image-capture-container .results {
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margin-top: 20px;
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}

‎hello-world/angular/src/app/image-capture/image-capture.component.html‎

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<div class="capture-img">
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<div class="img-ipt"><input type="file" (change)="captureImage($event)"/></div>
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<div class="result-area" #resDiv></div>
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<div class="image-capture-container">
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<div class="input-container">
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<input
4+
type="file"
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multiple
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(change)="captureImage($event)"
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accept=".jpg,.jpeg,.icon,.gif,.svg,.webp,.png,.bmp"
8+
/>
9+
</div>
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<div class="results" #results></div>
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</div>

‎hello-world/angular/src/app/image-capture/image-capture.component.ts‎

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import { Component, ViewChild, ElementRef } from '@angular/core';
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import "../dynamsoft.config";
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import { EnumCapturedResultItemType } from "dynamsoft-core";
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import type { BarcodeResultItem } from "dynamsoft-barcode-reader";
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import { CaptureVisionRouter } from "dynamsoft-capture-vision-router";
2+
import '../dynamsoft.config';
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import { EnumCapturedResultItemType } from 'dynamsoft-core';
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import type { BarcodeResultItem } from 'dynamsoft-barcode-reader';
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import { CaptureVisionRouter } from 'dynamsoft-capture-vision-router';
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@Component({
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selector: 'app-image-capture',
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standalone: true,
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})
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export class ImageCaptureComponent {
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@ViewChild('resDiv') resDiv?: ElementRef<HTMLDivElement>;
14+
@ViewChild('results') resultsContainer?: ElementRef<HTMLDivElement>;
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1716
pCvRouter?: Promise<CaptureVisionRouter>;
18-
bDestoried = false;
17+
isDestroyed = false;
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captureImage = async (e: Event) => {
21-
let files = [...(e.target! as HTMLInputElement).files as any as File[]];
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(e.target! as HTMLInputElement).value = '';
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this.resDiv!.nativeElement.innerText = "";
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let files = [...((e.target! as HTMLInputElement).files as any as File[])];
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(e.target! as HTMLInputElement).value = ''; // reset input
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this.resultsContainer!.nativeElement.innerText = '';
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try {
25-
const cvRouter = await (this.pCvRouter = this.pCvRouter || CaptureVisionRouter.createInstance());
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if (this.bDestoried) return;
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28-
for(let file of files){
24+
// ensure cvRouter is created only once
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const cvRouter = await (this.pCvRouter =
26+
this.pCvRouter || CaptureVisionRouter.createInstance());
27+
if (this.isDestroyed) return;
28+
29+
for (let file of files) {
2930
// Decode selected image with 'ReadBarcodes_SpeedFirst' template.
30-
const result = await cvRouter.capture(file, "ReadBarcodes_SpeedFirst");
31-
if (this.bDestoried) return;
32-
33-
if(files.length > 1){
34-
this.resDiv!.nativeElement.innerText += `\n${file.name}:\n`;
31+
const result = await cvRouter.capture(file, 'ReadBarcodes_SpeedFirst');
32+
if (this.isDestroyed) return;
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// Print file name if there's multiple files
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if (files.length > 1) {
36+
this.resultsContainer!.nativeElement.innerText += `\n${file.name}:\n`;
3537
}
3638
for (let _item of result.items) {
37-
if(_item.type !== EnumCapturedResultItemType.CRIT_BARCODE) { continue; }
39+
if (_item.type !== EnumCapturedResultItemType.CRIT_BARCODE) {
40+
continue; // check if captured result item is a barcode
41+
}
3842
let item = _item as BarcodeResultItem;
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this.resDiv!.nativeElement.innerText += item.text + "\n";
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this.resultsContainer!.nativeElement.innerText += item.text + '\n'; // output the decoded barcode text
4044
console.log(item.text);
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}
42-
if (!result.items.length) this.resDiv!.nativeElement.innerText += 'No barcode found\n';
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// If no items are found, display that no barcode was detected
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if (!result.items.length)
48+
this.resultsContainer!.nativeElement.innerText +=
49+
'No barcode found\n';
4350
}
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} catch (ex: any) {
4552
let errMsg = ex.message || ex;
4653
console.error(errMsg);
4754
alert(errMsg);
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}
49-
}
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};
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58+
// dispose cvRouter when it's no longer needed
5159
async ngOnDestroy() {
52-
this.bDestoried = true;
53-
if(this.pCvRouter){
54-
try{
60+
this.isDestroyed = true;
61+
if (this.pCvRouter) {
62+
try {
5563
(await this.pCvRouter).dispose();
56-
}catch(_){}
64+
} catch (_) {}
5765
}
5866
}
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}

‎hello-world/angular/src/app/video-capture/video-capture.component.css‎

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.div-ui-container {
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.camera-view-container {
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width: 100%;
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height: 70vh;
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}
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.div-results-container {
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.results {
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width: 100%;
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height: 10vh;
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overflow: auto;

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