headless improvements

Author: kripken

src/headless.js

@@ -142,7 +142,15 @@ var document = {
         });
         return ret;
       }
-      default: throw 'createElement ' + what;
+      case 'div': {
+        return {
+          appendChild: function() {},
+          requestFullScreen: function() {
+            return document.getElementById('canvas').requestFullScreen();
+          },
+        };
+      }
+      default: throw 'createElement ' + what + new Error().stack;
     }
   },
   elements: {},
@@ -236,9 +244,6 @@ var Worker = function(workerPath) {
   workerPath = fixPath(workerPath);
   var workerCode = read(workerPath);
   workerCode = workerCode.replace(/Module/g, 'zzModuleyy' + (Worker.id++)). // prevent collision with the global Module object. Note that this becomes global, so we need unique ids
-                          //replace(/Date.now/g, 'Recorder.dnow'). // recorded values are just for the "main thread" - workers were not recorded, and should not consume
-                          //replace(/performance.now/g, 'Recorder.pnow').
-                          //replace(/Math.random/g, 'Recorder.random').
                           replace(/\nonmessage = /, '\nvar onmessage = '); // workers commonly do "onmessage = ", we need to varify that to sandbox
   headlessPrint('loading worker ' + workerPath + ' : ' + workerCode.substring(0, 50));
   eval(workerCode); // will implement onmessage()

src/headlessCanvas.js

@@ -1,5 +1,6 @@
 function headlessCanvas() {
-  return {
+  var that = this;
+  var ret = {
     headless: true,
     getContext: function(which) {
       switch(which) {
@@ -452,7 +453,7 @@ function headlessCanvas() {
               }
             },
             getSupportedExtensions: function() {
-              return ["OES_texture_float", "OES_standard_derivatives", "EXT_texture_filter_anisotropic"];
+              return ["OES_texture_float", "OES_standard_derivatives", "EXT_texture_filter_anisotropic", "MOZ_EXT_texture_filter_anisotropic", "MOZ_WEBGL_lose_context", "MOZ_WEBGL_compressed_texture_s3tc", "MOZ_WEBGL_depth_texture"];
             },
             createShader: function(type) {
               var id = this.id++;
@@ -600,7 +601,8 @@ function headlessCanvas() {
     },
     exitPointerLock: function(){},
     style: {
-      setProperty: function(){}
+      setProperty: function() {},
+      removeProperty: function() {},
     },
     eventListeners: {},
     addEventListener: function(){},
@@ -618,6 +620,9 @@ function headlessCanvas() {
       add: function(){},
       remove: function(){},
     },
+    insertBefore: function(){},
   };
+  ret.parentNode = ret;
+  return ret;
 }