Improve type checking in WebGL support test

2013-12-04 11:59:29 +01:00
parent d6dc1a2c6f
commit 0d3583bd8d
1 changed files with 18 additions and 14 deletions
--- a/src/ol/webgl/webgl.js
+++ b/src/ol/webgl/webgl.js
@@ -52,7 +52,11 @@ ol.webgl.getContext = function(canvas, opt_attributes) {
 * @const
 * @type {boolean}
 */
-ol.webgl.SUPPORTED = (function() {
+ol.webgl.SUPPORTED = (
+    /**
+     * @return {boolean} WebGL supported.
+     */
+    function() {
      if (!('WebGLRenderingContext' in goog.global)) {
        return false;
      }
@@ -65,4 +69,4 @@ ol.webgl.SUPPORTED = (function() {
      } catch (e) {
        return false;
      }
-})();
+    })();