From e9d5947b4abbc052046585227892da0adcd56caf Mon Sep 17 00:00:00 2001
From: jeresig <jeresig@gmail.com>
Date: Wed, 6 Jan 2010 11:32:29 -0500
Subject: [PATCH] Adding in backwards-compatiblity support for
 jQuery().bind/unbind/trigger - and immediately deprecating
 it. Please explicitly use jQuery(document) in your code.

---
 src/event.js       |   23 ++++++++++++++++++-----
 test/unit/event.js |   13 +++++++++++++
 2 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/src/event.js b/src/event.js
index fe98794..9abf838 100644
--- a/src/event.js
+++ b/src/event.js
@@ -752,6 +752,7 @@ jQuery.each(["bind", "one"], function( i, name ) {
 			for ( var key in type ) {
 				this[ name ](key, data, type[key], fn);
 			}
+
 			return this;
 		}
 		
@@ -766,11 +767,17 @@ jQuery.each(["bind", "one"], function( i, name ) {
 			return fn.apply( this, arguments );
 		}) : fn;
 
-		return type === "unload" && name !== "one" ?
-			this.one( type, data, fn, thisObject ) :
-			this.each(function() {
+		if ( type === "unload" && name !== "one" ) {
+			this.one( type, data, fn, thisObject );
+
+		} else {
+			// Deprecated: Please don't expect an empty jQuery set to bind to document
+			(!this.selector && !this.context ? jQuery(document) : this).each(function() {
 				jQuery.event.add( this, type, handler, data );
 			});
+		}
+
+		return this;
 	};
 });
 
@@ -784,14 +791,20 @@ jQuery.fn.extend({
 			return this;
 		}
 
-		return this.each(function() {
+		// Deprecated: Please don't expect an empty jQuery set to bind to document
+		(!this.selector && !this.context ? jQuery(document) : this).each(function() {
 			jQuery.event.remove( this, type, fn );
 		});
+
+		return this;
 	},
 	trigger: function( type, data ) {
-		return this.each(function() {
+		// Deprecated: Please don't expect an empty jQuery set to bind to document
+		(!this.selector && !this.context ? jQuery(document) : this).each(function() {
 			jQuery.event.trigger( type, data, this );
 		});
+
+		return this;
 	},
 
 	triggerHandler: function( type, data ) {
diff --git a/test/unit/event.js b/test/unit/event.js
index 8a9e48b..7111bb5 100644
--- a/test/unit/event.js
+++ b/test/unit/event.js
@@ -118,6 +118,19 @@ test("bind(), trigger change on select", function() {
 	}).trigger('change');
 });
 
+test("bind/unbind/trigger on empty jQuery set", function() {
+	expect(1);
+
+	jQuery().bind("test", function(){
+		equals( this, document, "Handler triggered and bound on document." );
+	});
+
+	jQuery().trigger("test");
+
+	jQuery().unbind("test");
+	jQuery().trigger("test");
+});
+
 test("bind(), namespaced events, cloned events", function() {
 	expect(6);
 
-- 
1.7.10.4