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2,255 40,330 15,013 mrdoob/three.js
 Code  Issues 577  Pull requests 145  Wiki  Insights
three.js/examples/js/Detector.js
9232564  on Jul 24, 2015
@gero3 gero3 fixed files to codestyle
@mrdoob @alteredq @gero3 @gyohk @valette
    
79 lines (52 sloc)  2.03 KB
/**
 * @author alteredq / http://alteredqualia.com/
 * @author mr.doob / http://mrdoob.com/
 */

var Detector = {

	canvas: !! window.CanvasRenderingContext2D,
	webgl: ( function () {

		try {

			var canvas = document.createElement( 'canvas' ); return !! ( window.WebGLRenderingContext && ( canvas.getContext( 'webgl' ) || canvas.getContext( 'experimental-webgl' ) ) );

		} catch ( e ) {

			return false;

		}

	} )(),
	workers: !! window.Worker,
	fileapi: window.File && window.FileReader && window.FileList && window.Blob,

	getWebGLErrorMessage: function () {

		var element = document.createElement( 'div' );
		element.id = 'webgl-error-message';
		element.style.fontFamily = 'monospace';
		element.style.fontSize = '13px';
		element.style.fontWeight = 'normal';
		element.style.textAlign = 'center';
		element.style.background = '#fff';
		element.style.color = '#000';
		element.style.padding = '1.5em';
		element.style.width = '400px';
		element.style.margin = '5em auto 0';

		if ( ! this.webgl ) {

			element.innerHTML = window.WebGLRenderingContext ? [
				'Your graphics card does not seem to support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation" style="color:#000">WebGL</a>.<br />',
				'Find out how to get it <a href="http://get.webgl.org/" style="color:#000">here</a>.'
			].join( '\n' ) : [
				'Your browser does not seem to support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation" style="color:#000">WebGL</a>.<br/>',
				'Find out how to get it <a href="http://get.webgl.org/" style="color:#000">here</a>.'
			].join( '\n' );

		}

		return...