Revert revision 33053

third_party/pkg/angular/lib/core_dom/ng_mustache.dart

Index: third_party/pkg/angular/lib/core_dom/ng_mustache.dart
===================================================================
--- third_party/pkg/angular/lib/core_dom/ng_mustache.dart	(revision 33054)
+++ third_party/pkg/angular/lib/core_dom/ng_mustache.dart	(working copy)
@@ -7,56 +7,30 @@
                           String markup,
                           Interpolate interpolate,
                           Scope scope,
-                          AstParser parser,
-                          FilterMap filters) {
+                          TextChangeListener listener) {
     Interpolation interpolation = interpolate(markup);
-    interpolation.setter = (text) => element.text = text;
-
-    List items = interpolation.expressions.map((exp) {
-      return parser(exp, filters:filters);
-    }).toList();
-    AST ast = new PureFunctionAST('[[$markup]]', new ArrayFn(), items);
-    scope.watch(ast, interpolation.call, readOnly: true);
+    interpolation.setter = (text) {
+      element.text = text;
+      if (listener != null) listener.call(text);
+    };
+    interpolation.setter('');
+    scope.$watchSet(interpolation.watchExpressions, interpolation.call, markup.trim());
   }
 
 }
 
 @NgDirective(selector: r'[*=/{{.*}}/]')
 class NgAttrMustacheDirective {
-  // This Directive is special and does not go through injection.
-  NgAttrMustacheDirective(NodeAttrs attrs,
-                          String markup,
-                          Interpolate interpolate,
-                          Scope scope,
-                          AstParser parser,
-                          FilterMap filters) {
-    var eqPos = markup.indexOf('=');
-    var attrName = markup.substring(0, eqPos);
-    var attrValue = markup.substring(eqPos + 1);
-    Interpolation interpolation = interpolate(attrValue);
-    var lastValue = markup;
-    interpolation.setter = (text) {
-      if (lastValue != text) {
-            lastValue = attrs[attrName] = text;
-      }
-    };
-    // TODO(misko): figure out how to remove call to setter. It slows down
-    // Block instantiation
-    interpolation.setter('');
+  static RegExp ATTR_NAME_VALUE_REGEXP = new RegExp(r'^([^=]+)=(.*)$');
 
-    List items = interpolation.expressions.map((exp) {
-      return parser(exp, filters:filters);
-    }).toList();
-    AST ast = new PureFunctionAST('[[$markup]]', new ArrayFn(), items);
-    /*
-      Attribute bindings are tricky. They need to be resolved on digest
-      inline with components so that any bindings to component can
-      be resolved before the component attach method. But once the
-      component is attached we need to run on the flush cycle rather
-      then digest cycle.
-     */
-    // TODO(misko): figure out how to get most of these on observe rather then watch.
-    scope.watch(ast, interpolation.call);
+// This Directive is special and does not go through injection.
+  NgAttrMustacheDirective(NodeAttrs attrs, String markup, Interpolate interpolate, Scope scope) {
+    var match = ATTR_NAME_VALUE_REGEXP.firstMatch(markup);
+    var attrName = match[1];
+    Interpolation interpolation = interpolate(match[2]);
+    interpolation.setter = (text) => attrs[attrName] = text;
+    interpolation.setter('');
+    scope.$watchSet(interpolation.watchExpressions, interpolation.call, markup.trim());
   }
 }