mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-14 15:56:38 +03:00
Álvaro Velad Galván
65 lines
1.8 KiB
JavaScript
65 lines
1.8 KiB
JavaScript
/*! @license
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* Shaka Player
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* Copyright 2025 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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goog.provide('shaka.device.DeviceFactory');
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goog.require('goog.asserts');
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goog.require('shaka.log');
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goog.require('shaka.util.Lazy');
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goog.requireType('shaka.device.IDevice');
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shaka.device.DeviceFactory = class {
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/**
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* @param {?function(): shaka.device.IDevice} deviceFactory
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*/
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static registerDeviceFactory(deviceFactory) {
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goog.asserts.assert(!shaka.device.DeviceFactory.factory_,
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'Device Factory should NOT be defined');
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shaka.device.DeviceFactory.factory_ = deviceFactory;
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}
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/**
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* @param {?function(): shaka.device.IDevice} deviceFactory
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*/
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static registerDefaultDeviceFactory(deviceFactory) {
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goog.asserts.assert(!shaka.device.DeviceFactory.defaultFactory_,
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'Default device Factory should NOT be defined');
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shaka.device.DeviceFactory.defaultFactory_ = deviceFactory;
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}
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/**
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* @return {shaka.device.IDevice}
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*/
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static getDevice() {
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goog.asserts.assert(shaka.device.DeviceFactory.factory_ ||
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shaka.device.DeviceFactory.defaultFactory_,
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'Device Factory should be defined');
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return shaka.device.DeviceFactory.device_.value();
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}
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};
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/** @private {?function(): shaka.device.IDevice} */
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shaka.device.DeviceFactory.factory_ = null;
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/** @private {?function(): shaka.device.IDevice} */
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shaka.device.DeviceFactory.defaultFactory_ = null;
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/** @private {!shaka.util.Lazy<shaka.device.IDevice>} */
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shaka.device.DeviceFactory.device_ = new shaka.util.Lazy(() => {
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let device = undefined;
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if (shaka.device.DeviceFactory.factory_) {
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device = shaka.device.DeviceFactory.factory_();
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}
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if (!device && shaka.device.DeviceFactory.defaultFactory_) {
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device = shaka.device.DeviceFactory.defaultFactory_();
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}
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if (device) {
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shaka.log.info(device.toString());
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}
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return device;
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});
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