Refactored Detector.js into WebGL.js

examples/js/Detector.js

-/**
- * @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;
-
-		}
-
-	} )(),
-	webgl2: ( function () {
-
-		try {
-
-			var canvas = document.createElement( 'canvas' ); return !! ( window.WebGL2RenderingContext && ( canvas.getContext( 'webgl2' ) ) );
-
-		} 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 element;
-
-	},
-
-	addGetWebGLMessage: function ( parameters ) {
-
-		var parent, id, element;
-
-		parameters = parameters || {};
-
-		parent = parameters.parent !== undefined ? parameters.parent : document.body;
-		id = parameters.id !== undefined ? parameters.id : 'oldie';
-
-		element = Detector.getWebGLErrorMessage();
-		element.id = id;
-
-		parent.appendChild( element );
-
-	}
-
-};
-
-// browserify support
-if ( typeof module === 'object' ) {
-
-	module.exports = Detector;
-
-}

examples/js/WebGL.js

+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mr.doob / http://mrdoob.com/
+ */
+
+var WEBGL = {
+
+	isWebGLAvailable: function () {
+
+		try {
+
+			var canvas = document.createElement( 'canvas' );
+			return !! ( window.WebGLRenderingContext && ( canvas.getContext( 'webgl' ) || canvas.getContext( 'experimental-webgl' ) ) );
+
+		} catch ( e ) {
+
+			return false;
+
+		}
+
+	},
+
+	isWebGL2Available: function () {
+
+		try {
+
+			var canvas = document.createElement( 'canvas' );
+			return !! ( window.WebGL2RenderingContext && canvas.getContext( 'webgl2' ) );
+
+		} catch ( e ) {
+
+			return false;
+
+		}
+
+	},
+
+	getWebGLErrorMessage: function () {
+
+		return this.getErrorMessage( 1 );
+
+	},
+
+	getWebGL2ErrorMessage: function () {
+
+		return this.getErrorMessage( 2 );
+
+	},
+
+	getErrorMessage: function ( version ) {
+
+		var names = {
+			1: 'WebGL',
+			2: 'WebGL 2'
+		};
+
+		var contexts = {
+			1: window.WebGLRenderingContext,
+			2: window.WebGL2RenderingContext
+		};
+
+		var message = 'Your $0 does not seem to support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation" style="color:#000">$1</a>';
+
+		var element = document.createElement( 'div' );
+		element.id = 'webglmessage';
+		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 ( contexts[ version ] ) {
+
+			message = message.replace( '$0', 'graphics card' );
+
+		} else {
+
+			message = message.replace( '$0', 'browser' );
+
+		}
+
+		message = message.replace( '$1', names[ version ] );
+
+		element.innerHTML = message;
+
+		return element;
+
+	}
+
+};