var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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var __generator = (this && this.__generator) || function (thisArg, body) {
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var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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function verb(n) { return function (v) { return step([n, v]); }; }
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function step(op) {
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if (f) throw new TypeError("Generator is already executing.");
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while (g && (g = 0, op[0] && (_ = 0)), _) try {
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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;
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if (y = 0, t) op = [op[0] & 2, t.value];
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switch (op[0]) {
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case 0: case 1: t = op; break;
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case 4: _.label++; return { value: op[1], done: false };
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case 5: _.label++; y = op[1]; op = [0]; continue;
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case 7: op = _.ops.pop(); _.trys.pop(); continue;
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default:
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if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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if (t[2]) _.ops.pop();
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_.trys.pop(); continue;
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}
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op = body.call(thisArg, _);
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} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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}
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};
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var AbstractCameraCapability = (function () {
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function AbstractCameraCapability(name, track) {
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this.name = name;
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this.track = track;
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}
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AbstractCameraCapability.prototype.isSupported = function () {
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if (!this.track.getCapabilities) {
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return false;
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}
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return this.name in this.track.getCapabilities();
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};
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AbstractCameraCapability.prototype.apply = function (value) {
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var constraint = {};
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constraint[this.name] = value;
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var constraints = { advanced: [constraint] };
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return this.track.applyConstraints(constraints);
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};
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AbstractCameraCapability.prototype.value = function () {
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var settings = this.track.getSettings();
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if (this.name in settings) {
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var settingValue = settings[this.name];
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return settingValue;
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}
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return null;
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};
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return AbstractCameraCapability;
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}());
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var AbstractRangeCameraCapability = (function (_super) {
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__extends(AbstractRangeCameraCapability, _super);
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function AbstractRangeCameraCapability(name, track) {
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return _super.call(this, name, track) || this;
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}
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AbstractRangeCameraCapability.prototype.min = function () {
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return this.getCapabilities().min;
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};
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AbstractRangeCameraCapability.prototype.max = function () {
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return this.getCapabilities().max;
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};
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AbstractRangeCameraCapability.prototype.step = function () {
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return this.getCapabilities().step;
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};
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AbstractRangeCameraCapability.prototype.apply = function (value) {
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var constraint = {};
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constraint[this.name] = value;
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var constraints = { advanced: [constraint] };
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return this.track.applyConstraints(constraints);
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};
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AbstractRangeCameraCapability.prototype.getCapabilities = function () {
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this.failIfNotSupported();
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var capabilities = this.track.getCapabilities();
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var capability = capabilities[this.name];
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return {
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min: capability.min,
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max: capability.max,
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step: capability.step,
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};
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};
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AbstractRangeCameraCapability.prototype.failIfNotSupported = function () {
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if (!this.isSupported()) {
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throw new Error("".concat(this.name, " capability not supported"));
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}
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};
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return AbstractRangeCameraCapability;
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}(AbstractCameraCapability));
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var ZoomFeatureImpl = (function (_super) {
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__extends(ZoomFeatureImpl, _super);
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function ZoomFeatureImpl(track) {
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return _super.call(this, "zoom", track) || this;
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}
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return ZoomFeatureImpl;
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}(AbstractRangeCameraCapability));
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var TorchFeatureImpl = (function (_super) {
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__extends(TorchFeatureImpl, _super);
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function TorchFeatureImpl(track) {
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return _super.call(this, "torch", track) || this;
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}
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return TorchFeatureImpl;
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}(AbstractCameraCapability));
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var CameraCapabilitiesImpl = (function () {
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function CameraCapabilitiesImpl(track) {
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this.track = track;
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}
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CameraCapabilitiesImpl.prototype.zoomFeature = function () {
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return new ZoomFeatureImpl(this.track);
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};
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CameraCapabilitiesImpl.prototype.torchFeature = function () {
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return new TorchFeatureImpl(this.track);
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};
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return CameraCapabilitiesImpl;
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}());
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var RenderedCameraImpl = (function () {
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function RenderedCameraImpl(parentElement, mediaStream, callbacks) {
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this.isClosed = false;
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this.parentElement = parentElement;
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this.mediaStream = mediaStream;
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this.callbacks = callbacks;
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this.surface = this.createVideoElement(this.parentElement.clientWidth);
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parentElement.append(this.surface);
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}
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RenderedCameraImpl.prototype.createVideoElement = function (width) {
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var videoElement = document.createElement("video");
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videoElement.style.width = "".concat(width, "px");
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videoElement.style.display = "block";
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videoElement.muted = true;
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videoElement.setAttribute("muted", "true");
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videoElement.playsInline = true;
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return videoElement;
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};
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RenderedCameraImpl.prototype.setupSurface = function () {
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var _this = this;
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this.surface.onabort = function () {
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throw "RenderedCameraImpl video surface onabort() called";
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};
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this.surface.onerror = function () {
|
throw "RenderedCameraImpl video surface onerror() called";
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};
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var onVideoStart = function () {
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var videoWidth = _this.surface.clientWidth;
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var videoHeight = _this.surface.clientHeight;
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_this.callbacks.onRenderSurfaceReady(videoWidth, videoHeight);
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_this.surface.removeEventListener("playing", onVideoStart);
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};
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this.surface.addEventListener("playing", onVideoStart);
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this.surface.srcObject = this.mediaStream;
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this.surface.play();
|
};
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RenderedCameraImpl.create = function (parentElement, mediaStream, options, callbacks) {
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return __awaiter(this, void 0, void 0, function () {
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var renderedCamera, aspectRatioConstraint;
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return __generator(this, function (_a) {
|
switch (_a.label) {
|
case 0:
|
renderedCamera = new RenderedCameraImpl(parentElement, mediaStream, callbacks);
|
if (!options.aspectRatio) return [3, 2];
|
aspectRatioConstraint = {
|
aspectRatio: options.aspectRatio
|
};
|
return [4, renderedCamera.getFirstTrackOrFail().applyConstraints(aspectRatioConstraint)];
|
case 1:
|
_a.sent();
|
_a.label = 2;
|
case 2:
|
renderedCamera.setupSurface();
|
return [2, renderedCamera];
|
}
|
});
|
});
|
};
|
RenderedCameraImpl.prototype.failIfClosed = function () {
|
if (this.isClosed) {
|
throw "The RenderedCamera has already been closed.";
|
}
|
};
|
RenderedCameraImpl.prototype.getFirstTrackOrFail = function () {
|
this.failIfClosed();
|
if (this.mediaStream.getVideoTracks().length === 0) {
|
throw "No video tracks found";
|
}
|
return this.mediaStream.getVideoTracks()[0];
|
};
|
RenderedCameraImpl.prototype.pause = function () {
|
this.failIfClosed();
|
this.surface.pause();
|
};
|
RenderedCameraImpl.prototype.resume = function (onResumeCallback) {
|
this.failIfClosed();
|
var $this = this;
|
var onVideoResume = function () {
|
setTimeout(onResumeCallback, 200);
|
$this.surface.removeEventListener("playing", onVideoResume);
|
};
|
this.surface.addEventListener("playing", onVideoResume);
|
this.surface.play();
|
};
|
RenderedCameraImpl.prototype.isPaused = function () {
|
this.failIfClosed();
|
return this.surface.paused;
|
};
|
RenderedCameraImpl.prototype.getSurface = function () {
|
this.failIfClosed();
|
return this.surface;
|
};
|
RenderedCameraImpl.prototype.getRunningTrackCapabilities = function () {
|
return this.getFirstTrackOrFail().getCapabilities();
|
};
|
RenderedCameraImpl.prototype.getRunningTrackSettings = function () {
|
return this.getFirstTrackOrFail().getSettings();
|
};
|
RenderedCameraImpl.prototype.applyVideoConstraints = function (constraints) {
|
return __awaiter(this, void 0, void 0, function () {
|
return __generator(this, function (_a) {
|
if ("aspectRatio" in constraints) {
|
throw "Changing 'aspectRatio' in run-time is not yet supported.";
|
}
|
return [2, this.getFirstTrackOrFail().applyConstraints(constraints)];
|
});
|
});
|
};
|
RenderedCameraImpl.prototype.close = function () {
|
if (this.isClosed) {
|
return Promise.resolve();
|
}
|
var $this = this;
|
return new Promise(function (resolve, _) {
|
var tracks = $this.mediaStream.getVideoTracks();
|
var tracksToClose = tracks.length;
|
var tracksClosed = 0;
|
$this.mediaStream.getVideoTracks().forEach(function (videoTrack) {
|
$this.mediaStream.removeTrack(videoTrack);
|
videoTrack.stop();
|
++tracksClosed;
|
if (tracksClosed >= tracksToClose) {
|
$this.isClosed = true;
|
$this.parentElement.removeChild($this.surface);
|
resolve();
|
}
|
});
|
});
|
};
|
RenderedCameraImpl.prototype.getCapabilities = function () {
|
return new CameraCapabilitiesImpl(this.getFirstTrackOrFail());
|
};
|
return RenderedCameraImpl;
|
}());
|
var CameraImpl = (function () {
|
function CameraImpl(mediaStream) {
|
this.mediaStream = mediaStream;
|
}
|
CameraImpl.prototype.render = function (parentElement, options, callbacks) {
|
return __awaiter(this, void 0, void 0, function () {
|
return __generator(this, function (_a) {
|
return [2, RenderedCameraImpl.create(parentElement, this.mediaStream, options, callbacks)];
|
});
|
});
|
};
|
CameraImpl.create = function (videoConstraints) {
|
return __awaiter(this, void 0, void 0, function () {
|
var constraints, mediaStream;
|
return __generator(this, function (_a) {
|
switch (_a.label) {
|
case 0:
|
if (!navigator.mediaDevices) {
|
throw "navigator.mediaDevices not supported";
|
}
|
constraints = {
|
audio: false,
|
video: videoConstraints
|
};
|
return [4, navigator.mediaDevices.getUserMedia(constraints)];
|
case 1:
|
mediaStream = _a.sent();
|
return [2, new CameraImpl(mediaStream)];
|
}
|
});
|
});
|
};
|
return CameraImpl;
|
}());
|
export { CameraImpl };
|
//# sourceMappingURL=core-impl.js.map
|
