Prevent compile timer from starting during load, because CodeMirror w…

…as firing its onChange event after loading a new hash. This cuts page load time in half for systems relying on the ANGLE cross-compiler, because it compiles only once now, not twice.

server/assets/js/helpers.js

@@ -124,6 +124,7 @@ function load_code(hash) {
 	set_parent_button('hidden');
 
 	$.getJSON('/item/'+hash, function(result) {
+		compileOnChangeCode = false;  // Prevent compile timer start
 		code.setValue(result['code']);
 		original_code=code.getValue();
 
@@ -145,6 +146,7 @@ function load_code(hash) {
 			saveButton.textContent = 'fork';
 
 		compile();
+		compileOnChangeCode = true;
 	});
 }
 

static/index.html

@@ -144,7 +144,7 @@
 			var toolbar, compileButton, fullscreenButton, compileTimer, errorLines = [];
 			var code, canvas, gl, buffer, currentProgram, vertexPosition,
 			parameters = { startTime: Date.now(), time: 0, mouseX: 0.5, mouseY: 0.5, screenWidth: 0, screenHeight: 0 },
-			frontTarget, backTarget, screenProgram, getWebGL, resizer = {};
+			frontTarget, backTarget, screenProgram, getWebGL, resizer = {}, compileOnChangeCode = true;
 
 			init();
 			if (gl) { animate(); }
@@ -283,8 +283,10 @@
 					indentUnit: 8,
 					mode: "text/x-glsl",
 					onChange: function () {
-						clearTimeout(compileTimer);
-						compileTimer = setTimeout(compile, 500);
+						if (compileOnChangeCode) {
+							clearTimeout(compileTimer);
+							compileTimer = setTimeout(compile, 500);
+						}
 					}
 				});
 				code.getWrapperElement().style.visibility = 'visible';

static/js/helpers.js

@@ -52,8 +52,10 @@ function readURL( hash ) {
 
 	compressor.decompress( bytes, function( text ) {
 
+		compileOnChangeCode = false;  // Prevent compile timer start
 		code.setValue(text);
 		compile();
+		compileOnChangeCode = true;
 
 	},
 	dummyFunction );