From 05585779ab70aa6017cbf38b704f8c7231d37883 Mon Sep 17 00:00:00 2001
From: Steven Bull <steven@thebulls.us>
Date: Fri, 10 Feb 2012 18:28:15 -0800
Subject: [PATCH] Avoid calling placeholder functions in valHooks unless
 .placeholder() has been invoked on the element.

---
 jquery.placeholder.js | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/jquery.placeholder.js b/jquery.placeholder.js
index 209d200..8fea7f0 100644
--- a/jquery.placeholder.js
+++ b/jquery.placeholder.js
@@ -26,6 +26,7 @@
 					'focus.placeholder': clearPlaceholder,
 					'blur.placeholder': setPlaceholder
 				})
+				.data('jquery-placeholder-enabled', true)
 				.trigger('blur.placeholder').end();
 		};
 
@@ -34,17 +35,23 @@
 
 		hooks = {
 			'get': function(element) {
-				var $element = $(element);
-				return $element.hasClass('placeholder') ? '' : element.value;
+				var $element = $(element),
+				    isPlaceholderEnabled = $element.data('jquery-placeholder-enabled');
+				return (isPlaceholderEnabled && $element.hasClass('placeholder')) ? '' : element.value;
 			},
 			'set': function(element, value) {
-				var $element = $(element);
-				if (value == '') {
-					element.value = value;
-					// We can’t use `triggerHandler` here because of dummy text/password inputs :(
-					setPlaceholder.call(element);
-				} else if ($element.hasClass('placeholder')) {
-					clearPlaceholder.call(element, true, value) || (element.value = value);
+				var $element = $(element)
+				    isPlaceholderEnabled = $element.data('jquery-placeholder-enabled');
+				if (isPlaceholderEnabled) {
+					if (value == '') {
+						element.value = value;
+						// We can’t use `triggerHandler` here because of dummy text/password inputs :(
+						setPlaceholder.call(element);
+					} else if ($element.hasClass('placeholder')) {
+						clearPlaceholder.call(element, true, value) || (element.value = value);
+					} else {
+						element.value = value;
+					}
 				} else {
 					element.value = value;
 				}