import { Html5QrcodeConstants, Html5QrcodeScanType, Html5QrcodeErrorFactory, BaseLoggger, isNullOrUndefined, clip, } from "./core";
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import { Html5Qrcode, } from "./html5-qrcode";
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import { Html5QrcodeScannerStrings, } from "./strings";
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import { ASSET_FILE_SCAN, ASSET_CAMERA_SCAN, } from "./image-assets";
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import { PersistedDataManager } from "./storage";
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import { LibraryInfoContainer } from "./ui";
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import { CameraPermissions } from "./camera/permissions";
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import { ScanTypeSelector } from "./ui/scanner/scan-type-selector";
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import { TorchButton } from "./ui/scanner/torch-button";
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import { FileSelectionUi } from "./ui/scanner/file-selection-ui";
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import { BaseUiElementFactory, PublicUiElementIdAndClasses } from "./ui/scanner/base";
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import { CameraSelectionUi } from "./ui/scanner/camera-selection-ui";
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import { CameraZoomUi } from "./ui/scanner/camera-zoom-ui";
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var Html5QrcodeScannerStatus;
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(function (Html5QrcodeScannerStatus) {
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Html5QrcodeScannerStatus[Html5QrcodeScannerStatus["STATUS_DEFAULT"] = 0] = "STATUS_DEFAULT";
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Html5QrcodeScannerStatus[Html5QrcodeScannerStatus["STATUS_SUCCESS"] = 1] = "STATUS_SUCCESS";
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Html5QrcodeScannerStatus[Html5QrcodeScannerStatus["STATUS_WARNING"] = 2] = "STATUS_WARNING";
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Html5QrcodeScannerStatus[Html5QrcodeScannerStatus["STATUS_REQUESTING_PERMISSION"] = 3] = "STATUS_REQUESTING_PERMISSION";
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})(Html5QrcodeScannerStatus || (Html5QrcodeScannerStatus = {}));
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function toHtml5QrcodeCameraScanConfig(config) {
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return {
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fps: config.fps,
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qrbox: config.qrbox,
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aspectRatio: config.aspectRatio,
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disableFlip: config.disableFlip,
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videoConstraints: config.videoConstraints
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};
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}
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function toHtml5QrcodeFullConfig(config, verbose) {
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return {
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formatsToSupport: config.formatsToSupport,
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useBarCodeDetectorIfSupported: config.useBarCodeDetectorIfSupported,
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experimentalFeatures: config.experimentalFeatures,
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verbose: verbose
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};
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}
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export class Html5QrcodeScanner {
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constructor(elementId, config, verbose) {
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this.lastMatchFound = null;
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this.cameraScanImage = null;
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this.fileScanImage = null;
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this.fileSelectionUi = null;
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this.elementId = elementId;
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this.config = this.createConfig(config);
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this.verbose = verbose === true;
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if (!document.getElementById(elementId)) {
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throw `HTML Element with id=${elementId} not found`;
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}
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this.scanTypeSelector = new ScanTypeSelector(this.config.supportedScanTypes);
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this.currentScanType = this.scanTypeSelector.getDefaultScanType();
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this.sectionSwapAllowed = true;
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this.logger = new BaseLoggger(this.verbose);
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this.persistedDataManager = new PersistedDataManager();
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if (config.rememberLastUsedCamera !== true) {
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this.persistedDataManager.reset();
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}
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}
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render(qrCodeSuccessCallback, qrCodeErrorCallback) {
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this.lastMatchFound = null;
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this.qrCodeSuccessCallback
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= (decodedText, result) => {
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if (qrCodeSuccessCallback) {
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qrCodeSuccessCallback(decodedText, result);
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}
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else {
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if (this.lastMatchFound === decodedText) {
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return;
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}
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this.lastMatchFound = decodedText;
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this.setHeaderMessage(Html5QrcodeScannerStrings.lastMatch(decodedText), Html5QrcodeScannerStatus.STATUS_SUCCESS);
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}
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};
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this.qrCodeErrorCallback =
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(errorMessage, error) => {
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if (qrCodeErrorCallback) {
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qrCodeErrorCallback(errorMessage, error);
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}
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};
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const container = document.getElementById(this.elementId);
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if (!container) {
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throw `HTML Element with id=${this.elementId} not found`;
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}
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container.innerHTML = "";
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this.createBasicLayout(container);
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this.html5Qrcode = new Html5Qrcode(this.getScanRegionId(), toHtml5QrcodeFullConfig(this.config, this.verbose));
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}
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pause(shouldPauseVideo) {
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if (isNullOrUndefined(shouldPauseVideo) || shouldPauseVideo !== true) {
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shouldPauseVideo = false;
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}
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this.getHtml5QrcodeOrFail().pause(shouldPauseVideo);
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}
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resume() {
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this.getHtml5QrcodeOrFail().resume();
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}
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getState() {
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return this.getHtml5QrcodeOrFail().getState();
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}
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clear() {
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const emptyHtmlContainer = () => {
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const mainContainer = document.getElementById(this.elementId);
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if (mainContainer) {
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mainContainer.innerHTML = "";
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this.resetBasicLayout(mainContainer);
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}
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};
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if (this.html5Qrcode) {
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return new Promise((resolve, reject) => {
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if (!this.html5Qrcode) {
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resolve();
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return;
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}
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if (this.html5Qrcode.isScanning) {
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this.html5Qrcode.stop().then((_) => {
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if (!this.html5Qrcode) {
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resolve();
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return;
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}
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this.html5Qrcode.clear();
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emptyHtmlContainer();
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resolve();
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}).catch((error) => {
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if (this.verbose) {
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this.logger.logError("Unable to stop qrcode scanner", error);
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}
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reject(error);
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});
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}
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else {
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this.html5Qrcode.clear();
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emptyHtmlContainer();
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resolve();
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}
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});
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}
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return Promise.resolve();
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}
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getRunningTrackCapabilities() {
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return this.getHtml5QrcodeOrFail().getRunningTrackCapabilities();
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}
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getRunningTrackSettings() {
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return this.getHtml5QrcodeOrFail().getRunningTrackSettings();
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}
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applyVideoConstraints(videoConstaints) {
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return this.getHtml5QrcodeOrFail().applyVideoConstraints(videoConstaints);
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}
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getHtml5QrcodeOrFail() {
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if (!this.html5Qrcode) {
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throw "Code scanner not initialized.";
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}
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return this.html5Qrcode;
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}
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createConfig(config) {
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if (config) {
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if (!config.fps) {
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config.fps = Html5QrcodeConstants.SCAN_DEFAULT_FPS;
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}
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if (config.rememberLastUsedCamera !== (!Html5QrcodeConstants.DEFAULT_REMEMBER_LAST_CAMERA_USED)) {
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config.rememberLastUsedCamera
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= Html5QrcodeConstants.DEFAULT_REMEMBER_LAST_CAMERA_USED;
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}
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if (!config.supportedScanTypes) {
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config.supportedScanTypes
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= Html5QrcodeConstants.DEFAULT_SUPPORTED_SCAN_TYPE;
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}
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return config;
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}
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return {
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fps: Html5QrcodeConstants.SCAN_DEFAULT_FPS,
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rememberLastUsedCamera: Html5QrcodeConstants.DEFAULT_REMEMBER_LAST_CAMERA_USED,
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supportedScanTypes: Html5QrcodeConstants.DEFAULT_SUPPORTED_SCAN_TYPE
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};
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}
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createBasicLayout(parent) {
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parent.style.position = "relative";
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parent.style.padding = "0px";
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parent.style.border = "1px solid silver";
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this.createHeader(parent);
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const qrCodeScanRegion = document.createElement("div");
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const scanRegionId = this.getScanRegionId();
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qrCodeScanRegion.id = scanRegionId;
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qrCodeScanRegion.style.width = "100%";
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qrCodeScanRegion.style.minHeight = "100px";
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qrCodeScanRegion.style.textAlign = "center";
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parent.appendChild(qrCodeScanRegion);
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if (ScanTypeSelector.isCameraScanType(this.currentScanType)) {
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this.insertCameraScanImageToScanRegion();
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}
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else {
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this.insertFileScanImageToScanRegion();
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}
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const qrCodeDashboard = document.createElement("div");
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const dashboardId = this.getDashboardId();
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qrCodeDashboard.id = dashboardId;
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qrCodeDashboard.style.width = "100%";
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parent.appendChild(qrCodeDashboard);
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this.setupInitialDashboard(qrCodeDashboard);
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}
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resetBasicLayout(mainContainer) {
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mainContainer.style.border = "none";
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}
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setupInitialDashboard(dashboard) {
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this.createSection(dashboard);
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this.createSectionControlPanel();
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if (this.scanTypeSelector.hasMoreThanOneScanType()) {
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this.createSectionSwap();
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}
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}
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createHeader(dashboard) {
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const header = document.createElement("div");
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header.style.textAlign = "left";
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header.style.margin = "0px";
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dashboard.appendChild(header);
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let libraryInfo = new LibraryInfoContainer();
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libraryInfo.renderInto(header);
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const headerMessageContainer = document.createElement("div");
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headerMessageContainer.id = this.getHeaderMessageContainerId();
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headerMessageContainer.style.display = "none";
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headerMessageContainer.style.textAlign = "center";
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headerMessageContainer.style.fontSize = "14px";
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headerMessageContainer.style.padding = "2px 10px";
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headerMessageContainer.style.margin = "4px";
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headerMessageContainer.style.borderTop = "1px solid #f6f6f6";
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header.appendChild(headerMessageContainer);
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}
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createSection(dashboard) {
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const section = document.createElement("div");
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section.id = this.getDashboardSectionId();
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section.style.width = "100%";
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section.style.padding = "10px 0px 10px 0px";
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section.style.textAlign = "left";
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dashboard.appendChild(section);
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}
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createCameraListUi(scpCameraScanRegion, requestPermissionContainer, requestPermissionButton) {
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const $this = this;
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$this.showHideScanTypeSwapLink(false);
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$this.setHeaderMessage(Html5QrcodeScannerStrings.cameraPermissionRequesting());
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const createPermissionButtonIfNotExists = () => {
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if (!requestPermissionButton) {
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$this.createPermissionButton(scpCameraScanRegion, requestPermissionContainer);
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}
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};
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Html5Qrcode.getCameras().then((cameras) => {
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$this.persistedDataManager.setHasPermission(true);
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$this.showHideScanTypeSwapLink(true);
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$this.resetHeaderMessage();
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if (cameras && cameras.length > 0) {
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scpCameraScanRegion.removeChild(requestPermissionContainer);
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$this.renderCameraSelection(cameras);
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}
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else {
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$this.setHeaderMessage(Html5QrcodeScannerStrings.noCameraFound(), Html5QrcodeScannerStatus.STATUS_WARNING);
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createPermissionButtonIfNotExists();
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}
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}).catch((error) => {
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$this.persistedDataManager.setHasPermission(false);
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if (requestPermissionButton) {
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requestPermissionButton.disabled = false;
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}
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else {
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createPermissionButtonIfNotExists();
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}
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$this.setHeaderMessage(error, Html5QrcodeScannerStatus.STATUS_WARNING);
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$this.showHideScanTypeSwapLink(true);
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});
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}
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createPermissionButton(scpCameraScanRegion, requestPermissionContainer) {
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const $this = this;
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const requestPermissionButton = BaseUiElementFactory
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.createElement("button", this.getCameraPermissionButtonId());
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requestPermissionButton.innerText
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= Html5QrcodeScannerStrings.cameraPermissionTitle();
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requestPermissionButton.addEventListener("click", function () {
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requestPermissionButton.disabled = true;
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$this.createCameraListUi(scpCameraScanRegion, requestPermissionContainer, requestPermissionButton);
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});
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requestPermissionContainer.appendChild(requestPermissionButton);
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}
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createPermissionsUi(scpCameraScanRegion, requestPermissionContainer) {
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const $this = this;
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if (ScanTypeSelector.isCameraScanType(this.currentScanType)
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&& this.persistedDataManager.hasCameraPermissions()) {
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CameraPermissions.hasPermissions().then((hasPermissions) => {
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if (hasPermissions) {
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$this.createCameraListUi(scpCameraScanRegion, requestPermissionContainer);
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}
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else {
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$this.persistedDataManager.setHasPermission(false);
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$this.createPermissionButton(scpCameraScanRegion, requestPermissionContainer);
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}
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}).catch((_) => {
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$this.persistedDataManager.setHasPermission(false);
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$this.createPermissionButton(scpCameraScanRegion, requestPermissionContainer);
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});
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return;
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}
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this.createPermissionButton(scpCameraScanRegion, requestPermissionContainer);
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}
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createSectionControlPanel() {
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const section = document.getElementById(this.getDashboardSectionId());
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const sectionControlPanel = document.createElement("div");
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section.appendChild(sectionControlPanel);
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const scpCameraScanRegion = document.createElement("div");
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scpCameraScanRegion.id = this.getDashboardSectionCameraScanRegionId();
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scpCameraScanRegion.style.display
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= ScanTypeSelector.isCameraScanType(this.currentScanType)
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? "block" : "none";
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sectionControlPanel.appendChild(scpCameraScanRegion);
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const requestPermissionContainer = document.createElement("div");
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requestPermissionContainer.style.textAlign = "center";
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scpCameraScanRegion.appendChild(requestPermissionContainer);
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if (this.scanTypeSelector.isCameraScanRequired()) {
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this.createPermissionsUi(scpCameraScanRegion, requestPermissionContainer);
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}
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this.renderFileScanUi(sectionControlPanel);
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}
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renderFileScanUi(parent) {
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let showOnRender = ScanTypeSelector.isFileScanType(this.currentScanType);
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const $this = this;
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let onFileSelected = (file) => {
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if (!$this.html5Qrcode) {
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throw "html5Qrcode not defined";
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}
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if (!ScanTypeSelector.isFileScanType($this.currentScanType)) {
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return;
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}
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$this.setHeaderMessage(Html5QrcodeScannerStrings.loadingImage());
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$this.html5Qrcode.scanFileV2(file, true)
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.then((html5qrcodeResult) => {
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$this.resetHeaderMessage();
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$this.qrCodeSuccessCallback(html5qrcodeResult.decodedText, html5qrcodeResult);
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})
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.catch((error) => {
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$this.setHeaderMessage(error, Html5QrcodeScannerStatus.STATUS_WARNING);
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$this.qrCodeErrorCallback(error, Html5QrcodeErrorFactory.createFrom(error));
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});
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};
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this.fileSelectionUi = FileSelectionUi.create(parent, showOnRender, onFileSelected);
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}
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renderCameraSelection(cameras) {
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const $this = this;
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const scpCameraScanRegion = document.getElementById(this.getDashboardSectionCameraScanRegionId());
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scpCameraScanRegion.style.textAlign = "center";
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let cameraZoomUi = CameraZoomUi.create(scpCameraScanRegion, false);
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const renderCameraZoomUiIfSupported = (cameraCapabilities) => {
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let zoomCapability = cameraCapabilities.zoomFeature();
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if (!zoomCapability.isSupported()) {
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return;
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}
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cameraZoomUi.setOnCameraZoomValueChangeCallback((zoomValue) => {
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zoomCapability.apply(zoomValue);
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});
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let defaultZoom = 1;
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if (this.config.defaultZoomValueIfSupported) {
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defaultZoom = this.config.defaultZoomValueIfSupported;
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}
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defaultZoom = clip(defaultZoom, zoomCapability.min(), zoomCapability.max());
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cameraZoomUi.setValues(zoomCapability.min(), zoomCapability.max(), defaultZoom, zoomCapability.step());
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cameraZoomUi.show();
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};
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let cameraSelectUi = CameraSelectionUi.create(scpCameraScanRegion, cameras);
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const cameraActionContainer = document.createElement("span");
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const cameraActionStartButton = BaseUiElementFactory.createElement("button", PublicUiElementIdAndClasses.CAMERA_START_BUTTON_ID);
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cameraActionStartButton.innerText
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= Html5QrcodeScannerStrings.scanButtonStartScanningText();
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cameraActionContainer.appendChild(cameraActionStartButton);
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const cameraActionStopButton = BaseUiElementFactory.createElement("button", PublicUiElementIdAndClasses.CAMERA_STOP_BUTTON_ID);
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cameraActionStopButton.innerText
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= Html5QrcodeScannerStrings.scanButtonStopScanningText();
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cameraActionStopButton.style.display = "none";
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cameraActionStopButton.disabled = true;
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cameraActionContainer.appendChild(cameraActionStopButton);
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let torchButton;
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const createAndShowTorchButtonIfSupported = (cameraCapabilities) => {
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if (!cameraCapabilities.torchFeature().isSupported()) {
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if (torchButton) {
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torchButton.hide();
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}
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return;
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}
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if (!torchButton) {
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torchButton = TorchButton.create(cameraActionContainer, cameraCapabilities.torchFeature(), { display: "none", marginLeft: "5px" }, (errorMessage) => {
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$this.setHeaderMessage(errorMessage, Html5QrcodeScannerStatus.STATUS_WARNING);
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});
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}
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else {
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torchButton.updateTorchCapability(cameraCapabilities.torchFeature());
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}
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torchButton.show();
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};
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scpCameraScanRegion.appendChild(cameraActionContainer);
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const resetCameraActionStartButton = (shouldShow) => {
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if (!shouldShow) {
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cameraActionStartButton.style.display = "none";
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}
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cameraActionStartButton.innerText
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= Html5QrcodeScannerStrings
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.scanButtonStartScanningText();
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cameraActionStartButton.style.opacity = "1";
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cameraActionStartButton.disabled = false;
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if (shouldShow) {
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cameraActionStartButton.style.display = "inline-block";
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}
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};
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cameraActionStartButton.addEventListener("click", (_) => {
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cameraActionStartButton.innerText
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= Html5QrcodeScannerStrings.scanButtonScanningStarting();
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cameraSelectUi.disable();
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cameraActionStartButton.disabled = true;
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cameraActionStartButton.style.opacity = "0.5";
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if (this.scanTypeSelector.hasMoreThanOneScanType()) {
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$this.showHideScanTypeSwapLink(false);
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}
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$this.resetHeaderMessage();
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const cameraId = cameraSelectUi.getValue();
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$this.persistedDataManager.setLastUsedCameraId(cameraId);
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$this.html5Qrcode.start(cameraId, toHtml5QrcodeCameraScanConfig($this.config), $this.qrCodeSuccessCallback, $this.qrCodeErrorCallback)
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.then((_) => {
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cameraActionStopButton.disabled = false;
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cameraActionStopButton.style.display = "inline-block";
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resetCameraActionStartButton(false);
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const cameraCapabilities = $this.html5Qrcode.getRunningTrackCameraCapabilities();
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if (this.config.showTorchButtonIfSupported === true) {
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createAndShowTorchButtonIfSupported(cameraCapabilities);
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}
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if (this.config.showZoomSliderIfSupported === true) {
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renderCameraZoomUiIfSupported(cameraCapabilities);
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}
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})
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.catch((error) => {
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$this.showHideScanTypeSwapLink(true);
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cameraSelectUi.enable();
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resetCameraActionStartButton(true);
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$this.setHeaderMessage(error, Html5QrcodeScannerStatus.STATUS_WARNING);
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});
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});
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if (cameraSelectUi.hasSingleItem()) {
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cameraActionStartButton.click();
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}
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cameraActionStopButton.addEventListener("click", (_) => {
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if (!$this.html5Qrcode) {
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throw "html5Qrcode not defined";
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}
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cameraActionStopButton.disabled = true;
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$this.html5Qrcode.stop()
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.then((_) => {
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if (this.scanTypeSelector.hasMoreThanOneScanType()) {
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$this.showHideScanTypeSwapLink(true);
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}
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cameraSelectUi.enable();
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cameraActionStartButton.disabled = false;
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cameraActionStopButton.style.display = "none";
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cameraActionStartButton.style.display = "inline-block";
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if (torchButton) {
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torchButton.reset();
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torchButton.hide();
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}
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cameraZoomUi.removeOnCameraZoomValueChangeCallback();
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cameraZoomUi.hide();
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$this.insertCameraScanImageToScanRegion();
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}).catch((error) => {
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cameraActionStopButton.disabled = false;
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$this.setHeaderMessage(error, Html5QrcodeScannerStatus.STATUS_WARNING);
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});
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});
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if ($this.persistedDataManager.getLastUsedCameraId()) {
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const cameraId = $this.persistedDataManager.getLastUsedCameraId();
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if (cameraSelectUi.hasValue(cameraId)) {
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cameraSelectUi.setValue(cameraId);
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cameraActionStartButton.click();
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}
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else {
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$this.persistedDataManager.resetLastUsedCameraId();
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}
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}
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}
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createSectionSwap() {
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const $this = this;
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const TEXT_IF_CAMERA_SCAN_SELECTED = Html5QrcodeScannerStrings.textIfCameraScanSelected();
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const TEXT_IF_FILE_SCAN_SELECTED = Html5QrcodeScannerStrings.textIfFileScanSelected();
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const section = document.getElementById(this.getDashboardSectionId());
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const switchContainer = document.createElement("div");
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switchContainer.style.textAlign = "center";
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const switchScanTypeLink = BaseUiElementFactory.createElement("span", this.getDashboardSectionSwapLinkId());
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switchScanTypeLink.style.textDecoration = "underline";
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switchScanTypeLink.style.cursor = "pointer";
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switchScanTypeLink.innerText
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= ScanTypeSelector.isCameraScanType(this.currentScanType)
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? TEXT_IF_CAMERA_SCAN_SELECTED : TEXT_IF_FILE_SCAN_SELECTED;
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switchScanTypeLink.addEventListener("click", function () {
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if (!$this.sectionSwapAllowed) {
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if ($this.verbose) {
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$this.logger.logError("Section swap called when not allowed");
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}
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return;
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}
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$this.resetHeaderMessage();
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$this.fileSelectionUi.resetValue();
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$this.sectionSwapAllowed = false;
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if (ScanTypeSelector.isCameraScanType($this.currentScanType)) {
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$this.clearScanRegion();
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$this.getCameraScanRegion().style.display = "none";
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$this.fileSelectionUi.show();
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switchScanTypeLink.innerText = TEXT_IF_FILE_SCAN_SELECTED;
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$this.currentScanType = Html5QrcodeScanType.SCAN_TYPE_FILE;
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$this.insertFileScanImageToScanRegion();
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}
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else {
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$this.clearScanRegion();
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$this.getCameraScanRegion().style.display = "block";
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$this.fileSelectionUi.hide();
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switchScanTypeLink.innerText = TEXT_IF_CAMERA_SCAN_SELECTED;
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$this.currentScanType = Html5QrcodeScanType.SCAN_TYPE_CAMERA;
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$this.insertCameraScanImageToScanRegion();
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$this.startCameraScanIfPermissionExistsOnSwap();
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}
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$this.sectionSwapAllowed = true;
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});
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switchContainer.appendChild(switchScanTypeLink);
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section.appendChild(switchContainer);
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}
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startCameraScanIfPermissionExistsOnSwap() {
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const $this = this;
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if (this.persistedDataManager.hasCameraPermissions()) {
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CameraPermissions.hasPermissions().then((hasPermissions) => {
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if (hasPermissions) {
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let permissionButton = document.getElementById($this.getCameraPermissionButtonId());
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if (!permissionButton) {
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this.logger.logError("Permission button not found, fail;");
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throw "Permission button not found";
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}
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permissionButton.click();
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}
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else {
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$this.persistedDataManager.setHasPermission(false);
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}
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}).catch((_) => {
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$this.persistedDataManager.setHasPermission(false);
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});
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return;
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}
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}
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resetHeaderMessage() {
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const messageDiv = document.getElementById(this.getHeaderMessageContainerId());
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messageDiv.style.display = "none";
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}
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setHeaderMessage(messageText, scannerStatus) {
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if (!scannerStatus) {
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scannerStatus = Html5QrcodeScannerStatus.STATUS_DEFAULT;
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}
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const messageDiv = this.getHeaderMessageDiv();
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messageDiv.innerText = messageText;
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messageDiv.style.display = "block";
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switch (scannerStatus) {
|
case Html5QrcodeScannerStatus.STATUS_SUCCESS:
|
messageDiv.style.background = "rgba(106, 175, 80, 0.26)";
|
messageDiv.style.color = "#477735";
|
break;
|
case Html5QrcodeScannerStatus.STATUS_WARNING:
|
messageDiv.style.background = "rgba(203, 36, 49, 0.14)";
|
messageDiv.style.color = "#cb2431";
|
break;
|
case Html5QrcodeScannerStatus.STATUS_DEFAULT:
|
default:
|
messageDiv.style.background = "rgba(0, 0, 0, 0)";
|
messageDiv.style.color = "rgb(17, 17, 17)";
|
break;
|
}
|
}
|
showHideScanTypeSwapLink(shouldDisplay) {
|
if (this.scanTypeSelector.hasMoreThanOneScanType()) {
|
if (shouldDisplay !== true) {
|
shouldDisplay = false;
|
}
|
this.sectionSwapAllowed = shouldDisplay;
|
this.getDashboardSectionSwapLink().style.display
|
= shouldDisplay ? "inline-block" : "none";
|
}
|
}
|
insertCameraScanImageToScanRegion() {
|
const $this = this;
|
const qrCodeScanRegion = document.getElementById(this.getScanRegionId());
|
if (this.cameraScanImage) {
|
qrCodeScanRegion.innerHTML = "<br>";
|
qrCodeScanRegion.appendChild(this.cameraScanImage);
|
return;
|
}
|
this.cameraScanImage = new Image;
|
this.cameraScanImage.onload = (_) => {
|
qrCodeScanRegion.innerHTML = "<br>";
|
qrCodeScanRegion.appendChild($this.cameraScanImage);
|
};
|
this.cameraScanImage.width = 64;
|
this.cameraScanImage.style.opacity = "0.8";
|
this.cameraScanImage.src = ASSET_CAMERA_SCAN;
|
this.cameraScanImage.alt = Html5QrcodeScannerStrings.cameraScanAltText();
|
}
|
insertFileScanImageToScanRegion() {
|
const $this = this;
|
const qrCodeScanRegion = document.getElementById(this.getScanRegionId());
|
if (this.fileScanImage) {
|
qrCodeScanRegion.innerHTML = "<br>";
|
qrCodeScanRegion.appendChild(this.fileScanImage);
|
return;
|
}
|
this.fileScanImage = new Image;
|
this.fileScanImage.onload = (_) => {
|
qrCodeScanRegion.innerHTML = "<br>";
|
qrCodeScanRegion.appendChild($this.fileScanImage);
|
};
|
this.fileScanImage.width = 64;
|
this.fileScanImage.style.opacity = "0.8";
|
this.fileScanImage.src = ASSET_FILE_SCAN;
|
this.fileScanImage.alt = Html5QrcodeScannerStrings.fileScanAltText();
|
}
|
clearScanRegion() {
|
const qrCodeScanRegion = document.getElementById(this.getScanRegionId());
|
qrCodeScanRegion.innerHTML = "";
|
}
|
getDashboardSectionId() {
|
return `${this.elementId}__dashboard_section`;
|
}
|
getDashboardSectionCameraScanRegionId() {
|
return `${this.elementId}__dashboard_section_csr`;
|
}
|
getDashboardSectionSwapLinkId() {
|
return PublicUiElementIdAndClasses.SCAN_TYPE_CHANGE_ANCHOR_ID;
|
}
|
getScanRegionId() {
|
return `${this.elementId}__scan_region`;
|
}
|
getDashboardId() {
|
return `${this.elementId}__dashboard`;
|
}
|
getHeaderMessageContainerId() {
|
return `${this.elementId}__header_message`;
|
}
|
getCameraPermissionButtonId() {
|
return PublicUiElementIdAndClasses.CAMERA_PERMISSION_BUTTON_ID;
|
}
|
getCameraScanRegion() {
|
return document.getElementById(this.getDashboardSectionCameraScanRegionId());
|
}
|
getDashboardSectionSwapLink() {
|
return document.getElementById(this.getDashboardSectionSwapLinkId());
|
}
|
getHeaderMessageDiv() {
|
return document.getElementById(this.getHeaderMessageContainerId());
|
}
|
}
|
//# sourceMappingURL=html5-qrcode-scanner.js.map
|
