@skyway-sdk/core/dist/media/stream/base.js

The official Next Generation JavaScript SDK for SkyWay

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.detachElement = exports.attachElement = void 0;
const common_1 = require("@skyway-sdk/common");
const errors_1 = require("../../errors");
const util_1 = require("../../util");
const log = new common_1.Logger('packages/core/src/media/stream/base.ts');
/**@internal */
function attachElement(element, track) {
    if ((element === null || element === void 0 ? void 0 : element.srcObject) === undefined) {
        throw (0, util_1.createError)({
            operationName: 'attachElement',
            info: errors_1.errors.invalidElement,
            payload: { element },
            path: log.prefix,
        });
    }
    if (element.srcObject) {
        const stream = element.srcObject;
        const ended = stream.getTracks().find((t) => t.readyState === 'ended');
        if (ended) {
            stream.removeTrack(ended);
        }
        const duplicate = stream.getTracks().find((t) => t.kind === track.kind);
        if (duplicate) {
            stream.removeTrack(duplicate);
        }
        stream.addTrack(track);
    }
    else {
        element.srcObject = new MediaStream([track]);
    }
}
exports.attachElement = attachElement;
/**@internal */
function detachElement(element, track) {
    if ((element === null || element === void 0 ? void 0 : element.srcObject) === undefined) {
        throw (0, util_1.createError)({
            operationName: 'attachElement',
            info: errors_1.errors.invalidElement,
            payload: { element },
            path: log.prefix,
        });
    }
    const stream = element.srcObject;
    if (stream.getTracks().length > 0) {
        stream.removeTrack(track);
    }
    if (stream.getTracks().length === 0) {
        element.srcObject = null;
    }
}
exports.detachElement = detachElement;
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