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[Web] Add feature detection helpers to JS Engine class.

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This commit is contained in:
Fabio Alessandrelli 2022-09-17 10:16:34 +02:00
parent 57bdddce02
commit 6bbde346ab
5 changed files with 108 additions and 17 deletions
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25
platform/web/js/engine/engine.js
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@ -60,20 +60,6 @@ const Engine = (function () {
loadPromise = null;
};
/**
* Check whether WebGL is available. Optionally, specify a particular version of WebGL to check for.
*
* @param {number=} [majorVersion=1] The major WebGL version to check for.
* @returns {boolean} If the given major version of WebGL is available.
* @function Engine.isWebGLAvailable
*/
Engine.isWebGLAvailable = function (majorVersion = 1) {
try {
return !!document.createElement('canvas').getContext(['webgl', 'webgl2'][majorVersion - 1]);
} catch (e) { /* Not available */ }
return false;
};
/**
* Safe Engine constructor, creates a new prototype for every new instance to avoid prototype pollution.
* @ignore
@ -265,14 +251,21 @@ const Engine = (function () {
// Also expose static methods as instance methods
Engine.prototype['load'] = Engine.load;
Engine.prototype['unload'] = Engine.unload;
Engine.prototype['isWebGLAvailable'] = Engine.isWebGLAvailable;
return new Engine(initConfig);
}
// Closure compiler exported static methods.
SafeEngine['load'] = Engine.load;
SafeEngine['unload'] = Engine.unload;
SafeEngine['isWebGLAvailable'] = Engine.isWebGLAvailable;
// Feature-detection utilities.
SafeEngine['isWebGLAvailable'] = Features.isWebGLAvailable;
SafeEngine['isFetchAvailable'] = Features.isFetchAvailable;
SafeEngine['isSecureContext'] = Features.isSecureContext;
SafeEngine['isCrossOriginIsolated'] = Features.isCrossOriginIsolated;
SafeEngine['isSharedArrayBufferAvailable'] = Features.isSharedArrayBufferAvailable;
SafeEngine['isAudioWorkletAvailable'] = Features.isAudioWorkletAvailable;
SafeEngine['getMissingFeatures'] = Features.getMissingFeatures;
return SafeEngine;
}());