From c3eac13aa7106d099e8f09c39518051ccf939060 Mon Sep 17 00:00:00 2001
From: Misko Hevery
Date: Fri, 19 Mar 2010 16:41:02 -0700
Subject: showing off problem to corry

---
 src/Compiler.js | 188 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 188 insertions(+)
 create mode 100644 src/Compiler.js

(limited to 'src/Compiler.js')

diff --git a/src/Compiler.js b/src/Compiler.js
new file mode 100644
index 00000000..f4d901fb
--- /dev/null
+++ b/src/Compiler.js
@@ -0,0 +1,188 @@
+/**
+ * Template provides directions an how to bind to a given element.
+ * It contains a list of init functions which need to be called to
+ * bind to a new instance of elements. It also provides a list
+ * of child paths which contain child templates
+ */
+function Template() {
+  this.paths = [];
+  this.children = [];
+  this.inits = [];
+}
+
+Template.prototype = {
+  init: function(element, scope) {
+    foreach(this.inits, function(fn) {
+      scope.apply(fn, nodeLite(element));
+    });
+
+    var i,
+        childNodes = element.childNodes,
+        children = this.children,
+        paths = this.paths,
+        length = paths.length;
+    for (i = 0; i < length; i++) {
+      children[i].init(childNodes[paths[i]], scope);
+    }
+  },
+
+  addInit:function(init) {
+    if (init) {
+      this.inits.push(init);
+    }
+  },
+
+  setExclusiveInit: function(init) {
+    this.inits = [init];
+    this.addInit = noop;
+  },
+
+
+  addChild: function(index, template) {
+    this.paths.push(index);
+    this.children.push(template);
+  }
+};
+
+///////////////////////////////////
+//NodeLite
+//////////////////////////////////
+
+function NodeLite(element) {
+  this.element = element;
+}
+
+function nodeLite(element) {
+  return element instanceof NodeLite ? element : new NodeLite(element);
+}
+
+NodeLite.prototype = {
+  eachTextNode: function(fn){
+    var i, chldNodes = this.element.childNodes || [], size = chldNodes.length, chld;
+    for (i = 0; i < size; i++) {
+      if((chld = new NodeLite(chldNodes[i])).isText()) {
+        fn(chld, i);
+      }
+    }
+  },
+
+  eachNode: function(fn){
+    var i, chldNodes = this.element.childNodes || [], size = chldNodes.length, chld;
+    for (i = 0; i < size; i++) {
+      if(!(chld = new NodeLite(chldNodes[i])).isText()) {
+        fn(chld, i);
+      }
+    }
+  },
+
+  eachAttribute: function(fn){
+    var i, attrs = this.element.attributes || [], size = attrs.length, chld, attr;
+    for (i = 0; i < size; i++) {
+      var attr = attrs[i];
+      fn(attr.name, attr.value);
+    }
+  },
+
+  replaceWith: function(replaceNode) {
+    this.element.parentNode.replaceChild(nodeLite(replaceNode).element, this.element);
+  },
+
+  removeAttribute: function(name) {
+    this.element.removeAttribute(name);
+  },
+
+  after: function(element) {
+    this.element.parentNode.insertBefore(element, this.element.nextSibling);
+  },
+
+  attr: function(name, value){
+    if (typeof value == 'undefined') {
+      return this.element.getAttribute(name);
+    } else {
+      this.element.setAttribute(name);
+    }
+  },
+
+  isText: function() { return this.element.nodeType == Node.TEXT_NODE; },
+  text: function() { return this.element.nodeValue; },
+  clone: function() { return nodeLite(this.element.cloneNode(true)); }
+};
+
+///////////////////////////////////
+//Compiler
+//////////////////////////////////
+
+function Compiler(markup, directives, widgets){
+  this.markup = markup;
+  this.directives = directives;
+  this.widgets = widgets;
+}
+
+DIRECTIVE = /^ng-(.*)$/;
+
+Compiler.prototype = {
+  compile: function(element) {
+    var template = this.templetize(nodeLite(element)) || new Template();
+    return function(element){
+      var scope = new Scope();
+      scope.element = element;
+      return {
+        scope: scope,
+        element:element,
+        init: bind(template, template.init, element, scope)
+      };
+    };
+  },
+
+  templetize: function(element){
+    var self = this,
+        markup = self.markup,
+        markupSize = markup.length,
+        directives = self.directives,
+        widgets = self.widgets,
+        recurse = true,
+        exclusive = false,
+        template;
+
+    // process markup for text nodes only
+    element.eachTextNode(function(textNode){
+      for (var i = 0, text = textNode.text(); i < markupSize; i++) {
+        markup[i].call(self, text, textNode, element);
+      }
+    });
+
+    // Process attributes/directives
+    element.eachAttribute(function(name, value){
+      var match = name.match(DIRECTIVE),
+          directive, init;
+      if (!exclusive && match) {
+        directive = directives[match[1]];
+        if (directive) {
+          init = directive.call(self, value, element);
+          template = template || new Template();
+          if (directive.exclusive) {
+            template.setExclusiveInit(init);
+            exclusive = true;
+          } else {
+            template.addInit(init);
+          }
+          recurse = recurse && init;
+        } else {
+          error("Directive '" + match[0] + "' is not recognized.");
+        }
+      }
+    });
+
+    // Process non text child nodes
+    if (recurse) {
+      element.eachNode(function(child, i){
+        var childTemplate = self.templetize(child);
+        if(childTemplate) {
+          template = template || new Template();
+          template.addChild(i, childTemplate);
+        }
+      });
+    }
+    return template;
+  }
+};
-- 
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