move main script from index.js to lib/processing.js

nulltask · Jun 18, 2012 · 2e63f41 · 2e63f41
1 parent f1927e3
commit 2e63f41
Show file tree

Hide file tree

Showing 2 changed files with 99 additions and 66 deletions.
diff --git a/index.js b/index.js
@@ -1,67 +1,2 @@
 
-/**
- * Module dependencies.
- */
-
-var fs = require('fs')
-  , util = require('util')
-  , jsdom = require('jsdom')
-  , Canvas = require('canvas')
-  , Image = Canvas.Image
-  , document = jsdom.jsdom('<!doctype html><html><head></head><body></body></html>')
-  , window = document.createWindow()
-  , navigator = window.navigator
-  , HTMLImageElement = window.HTMLImageElement
-  , createElement = document.createElement
-  , noop = function() {}
-  , src = fs.readFileSync('./deps/processing-js/processing.js');
-
-/**
- * Dummy function for hack.
- */
-
-function HTMLCanvasElement() {}
-
-/**
- * Make `Canvas` instace of `HTMLCanvasElement`
- */
-
-Canvas.prototype.__proto__ = HTMLCanvasElement.prototype;
-
-/**
- * Creating Processing instance.
- */
-
-eval(src.toString('utf-8'));
-
-/**
- * Save referece for `window` and `document`.
- */
-
-Processing.window = window;
-Processing.document = document;
-
-/**
- * Integrate with node-canvas.
- */
-
-Processing.createElement = document.createElement = function() {
-  if ('canvas' === arguments[0]) {
-    var canvas = new Canvas();
-
-    canvas.style = { setProperty: noop };
-    canvas.attachEvent = noop;
-    canvas.setAttribute = noop;
-    canvas.getAttribute = noop;
-    canvas.hasAttribute = noop;
-
-    return canvas;
-  }
-  return createElement.apply(this, arguments);
-};
-
-/**
- * Expose `Processing`.
- */
-
-module.exports = Processing;
+module.exports = require('./lib/processing');
diff --git a/lib/processing.js b/lib/processing.js
@@ -0,0 +1,98 @@
+
+/**
+ * Module dependencies.
+ */
+
+var fs = require('fs')
+  , util = require('util')
+  , jsdom = require('jsdom')
+  , pkg = require('../package')
+  , patch = require('./patch')
+  , XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest
+  , Canvas = require('./canvas')
+  , Image = Canvas.Image
+  , document = jsdom.jsdom('<!doctype html><html><head></head><body></body></html>')
+  , window = document.createWindow()
+  , navigator = window.navigator
+  , HTMLImageElement = window.HTMLImageElement
+  , createElement = document.createElement
+  , noop = function() {}
+  , processing = fs.readFileSync('./deps/processing-js/processing.js');
+
+/**
+ * Expose `version`.
+ */
+
+exports.version = pkg.version;
+
+/**
+ * Expose `window`.
+ */
+
+exports.window = window;
+
+/**
+ * Expose `document`.
+ */
+
+exports.document = document;
+
+/**
+ * Make `Canvas` instance of `HTMLCanvasElement`.
+ */
+
+function HTMLCanvasElement() {}
+Canvas.prototype.__proto__ = HTMLCanvasElement.prototype;
+
+/**
+ * Evaluating Processing source code.
+ *
+ * FIXME: `Processing` leaks to global object.
+ */
+
+eval(processing.toString('utf-8'));
+
+/**
+ * Expose `Processing`.
+ */
+
+exports.Processing = Processing;
+
+/**
+ * Return processing instance.
+ *
+ * @param {Canvas} canvas
+ * @param {String} path
+ * @return {Processing}
+ */
+
+exports.createInstance = function(canvas, path) {
+  var src;
+
+  if (1 == arguments.length) {
+    path = canvas;
+    canvas = document.createElement('canvas');
+  } else if ('string' === typeof canvas) {
+    src = canvas;
+    canvas = document.createElement('canvas');
+  }
+
+  if (!src) {
+    src = fs.readFileSync(path).toString();
+  }
+
+  return patch(new Processing(canvas, src), path);
+};
+
+/**
+ * Integrate with node-canvas.
+ */
+
+document.createElement = function() {
+  if ('canvas' === arguments[0]) {
+    return new Canvas();
+  } else if ('img' === arguments[0]) {
+    return new Image();
+  }
+  return createElement.apply(this, arguments);
+};