Fix #26, make updateValue() synchronous by default, only async if eve…

…nt is passed in.

lib/angular-placeholder.js

@@ -75,8 +75,8 @@ angular.module('ng.shims.placeholder', [])
 
 			// handler for model-less inputs to interact with non-angular code
 			if (!ngModel) {
-				elem.bind('change', function () {
-					changePlaceholder($interpolate(elem.attr('placeholder') || '')(scope));
+				elem.bind('change', function (event) {
+					changePlaceholder($interpolate(elem.attr('placeholder') || '')(scope), event);
 				});
 			}
 
@@ -109,16 +109,16 @@ angular.module('ng.shims.placeholder', [])
 				documentListenersApplied = true;
 			}
 
-			function updateValue(e) {
+			function updateValue(event) {
 				var val = elem.val();
 
 				// don't update from placeholder, helps debounce
 				if (elem.hasClass(emptyClassName) && val && val === text) { return; }
 
-				conditionalDefer(function(){ setValue(val); });
+				conditionalDefer(function(){ setValue(val); }, event);
 			}
 
-			function conditionalDefer(callback) {
+			function conditionalDefer(callback, event) {
 				// IE8/9: ngModel uses a keydown handler with deferrered
 				// execution to check for changes to the input. this $timeout 
 				// prevents callback from firing before the keydown handler,
@@ -127,7 +127,7 @@ angular.module('ng.shims.placeholder', [])
 				//
 				// TODO: remove this function when tab key behavior is fixed in
 				// angular core
-				if (document.documentMode <= 11) {
+				if (document.documentMode <= 11 && event) {
 					$timeout(callback, 0);
 				} else {
 					callback();
@@ -174,12 +174,12 @@ angular.module('ng.shims.placeholder', [])
 				return val;
 			}
 
-			function changePlaceholder(value) {
+			function changePlaceholder(value, event) {
 				if (elem.hasClass(emptyClassName) && elem.val() === text) {
 					elem.val('');
 				}
 				text = value;
-				updateValue();
+				updateValue(event);
 			}
 
 			// IE9: getting activeElement in an iframe raises error