var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
|
return new (P || (P = Promise))(function (resolve, reject) {
|
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
|
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
|
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
|
step((generator = generator.apply(thisArg, _arguments || [])).next());
|
});
|
};
|
var __generator = (this && this.__generator) || function (thisArg, body) {
|
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
|
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
|
function verb(n) { return function (v) { return step([n, v]); }; }
|
function step(op) {
|
if (f) throw new TypeError("Generator is already executing.");
|
while (g && (g = 0, op[0] && (_ = 0)), _) try {
|
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
|
if (y = 0, t) op = [op[0] & 2, t.value];
|
switch (op[0]) {
|
case 0: case 1: t = op; break;
|
case 4: _.label++; return { value: op[1], done: false };
|
case 5: _.label++; y = op[1]; op = [0]; continue;
|
case 7: op = _.ops.pop(); _.trys.pop(); continue;
|
default:
|
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
|
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
|
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
|
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
|
if (t[2]) _.ops.pop();
|
_.trys.pop(); continue;
|
}
|
op = body.call(thisArg, _);
|
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
|
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
|
}
|
};
|
import { ZXingHtml5QrcodeDecoder } from "./zxing-html5-qrcode-decoder";
|
import { BarcodeDetectorDelegate } from "./native-bar-code-detector";
|
var Html5QrcodeShim = (function () {
|
function Html5QrcodeShim(requestedFormats, useBarCodeDetectorIfSupported, verbose, logger) {
|
this.EXECUTIONS_TO_REPORT_PERFORMANCE = 100;
|
this.executions = 0;
|
this.executionResults = [];
|
this.wasPrimaryDecoderUsedInLastDecode = false;
|
this.verbose = verbose;
|
if (useBarCodeDetectorIfSupported
|
&& BarcodeDetectorDelegate.isSupported()) {
|
this.primaryDecoder = new BarcodeDetectorDelegate(requestedFormats, verbose, logger);
|
this.secondaryDecoder = new ZXingHtml5QrcodeDecoder(requestedFormats, verbose, logger);
|
}
|
else {
|
this.primaryDecoder = new ZXingHtml5QrcodeDecoder(requestedFormats, verbose, logger);
|
}
|
}
|
Html5QrcodeShim.prototype.decodeAsync = function (canvas) {
|
return __awaiter(this, void 0, void 0, function () {
|
var startTime;
|
return __generator(this, function (_a) {
|
switch (_a.label) {
|
case 0:
|
startTime = performance.now();
|
_a.label = 1;
|
case 1:
|
_a.trys.push([1, , 3, 4]);
|
return [4, this.getDecoder().decodeAsync(canvas)];
|
case 2: return [2, _a.sent()];
|
case 3:
|
this.possiblyLogPerformance(startTime);
|
return [7];
|
case 4: return [2];
|
}
|
});
|
});
|
};
|
Html5QrcodeShim.prototype.decodeRobustlyAsync = function (canvas) {
|
return __awaiter(this, void 0, void 0, function () {
|
var startTime, error_1;
|
return __generator(this, function (_a) {
|
switch (_a.label) {
|
case 0:
|
startTime = performance.now();
|
_a.label = 1;
|
case 1:
|
_a.trys.push([1, 3, 4, 5]);
|
return [4, this.primaryDecoder.decodeAsync(canvas)];
|
case 2: return [2, _a.sent()];
|
case 3:
|
error_1 = _a.sent();
|
if (this.secondaryDecoder) {
|
return [2, this.secondaryDecoder.decodeAsync(canvas)];
|
}
|
throw error_1;
|
case 4:
|
this.possiblyLogPerformance(startTime);
|
return [7];
|
case 5: return [2];
|
}
|
});
|
});
|
};
|
Html5QrcodeShim.prototype.getDecoder = function () {
|
if (!this.secondaryDecoder) {
|
return this.primaryDecoder;
|
}
|
if (this.wasPrimaryDecoderUsedInLastDecode === false) {
|
this.wasPrimaryDecoderUsedInLastDecode = true;
|
return this.primaryDecoder;
|
}
|
this.wasPrimaryDecoderUsedInLastDecode = false;
|
return this.secondaryDecoder;
|
};
|
Html5QrcodeShim.prototype.possiblyLogPerformance = function (startTime) {
|
if (!this.verbose) {
|
return;
|
}
|
var executionTime = performance.now() - startTime;
|
this.executionResults.push(executionTime);
|
this.executions++;
|
this.possiblyFlushPerformanceReport();
|
};
|
Html5QrcodeShim.prototype.possiblyFlushPerformanceReport = function () {
|
if (this.executions < this.EXECUTIONS_TO_REPORT_PERFORMANCE) {
|
return;
|
}
|
var sum = 0;
|
for (var _i = 0, _a = this.executionResults; _i < _a.length; _i++) {
|
var executionTime = _a[_i];
|
sum += executionTime;
|
}
|
var mean = sum / this.executionResults.length;
|
console.log("".concat(mean, " ms for ").concat(this.executionResults.length, " last runs."));
|
this.executions = 0;
|
this.executionResults = [];
|
};
|
return Html5QrcodeShim;
|
}());
|
export { Html5QrcodeShim };
|
//# sourceMappingURL=code-decoder.js.map
|
