Fixes #12736. Move hover event hack to deprecated.js for removal in 1.9. Closes gh-982.

Signed-off-by: Timmy Willison <timmywillisn@gmail.com>

2 files changed, 48 insertions, 23 deletions

diff --git a/src/deprecated.js b/src/deprecated.js
index 4ea47b333..3c2763ddc 100644
--- a/src/deprecated.js
+++ b/src/deprecated.js
@@ -1,7 +1,12 @@
 // Limit scope pollution from any deprecated API
 (function() {
 
-var matched, browser;
+var matched, browser, eventAdd, eventRemove,
+	oldToggle = jQuery.fn.toggle,
+	rhoverHack = /(?:^|\s)hover(\.\S+|)\b/,
+	hoverHack = function( events ) {
+		return jQuery.event.special.hover ? events : events.replace( rhoverHack, "mouseenter$1 mouseleave$1" );
+	};
 
 // Use of jQuery.browser is frowned upon.
 // More details: http://api.jquery.com/jQuery.browser
@@ -60,10 +65,6 @@ jQuery.sub = function() {
 	return jQuerySub;
 };
 
-// Unused in 1.8, left in so attrFn-stabbers won't die; remove in 1.9
-jQuery.attrFn = {};
-
-var oldToggle = jQuery.fn.toggle;
 jQuery.fn.toggle = function( fn, fn2 ) {
 
 	if ( !jQuery.isFunction( fn ) || !jQuery.isFunction( fn2 ) ) {
@@ -72,19 +73,19 @@ jQuery.fn.toggle = function( fn, fn2 ) {
 
 	// Save reference to arguments for access in closure
 	var args = arguments,
-	    guid = fn.guid || jQuery.guid++,
-	    i = 0,
-	    toggler = function( event ) {
-		    // Figure out which function to execute
-		    var lastToggle = ( jQuery._data( this, "lastToggle" + fn.guid ) || 0 ) % i;
-		    jQuery._data( this, "lastToggle" + fn.guid, lastToggle + 1 );
+			guid = fn.guid || jQuery.guid++,
+			i = 0,
+			toggler = function( event ) {
+				// Figure out which function to execute
+				var lastToggle = ( jQuery._data( this, "lastToggle" + fn.guid ) || 0 ) % i;
+				jQuery._data( this, "lastToggle" + fn.guid, lastToggle + 1 );
 
-		    // Make sure that clicks stop
-		    event.preventDefault();
+				// Make sure that clicks stop
+				event.preventDefault();
 
-		    // and execute the function
-		    return args[ lastToggle ].apply( this, arguments ) || false;
-	    };
+				// and execute the function
+				return args[ lastToggle ].apply( this, arguments ) || false;
+			};
 
 	// link all the functions, so any of them can unbind this click handler
 	toggler.guid = guid;
@@ -95,4 +96,32 @@ jQuery.fn.toggle = function( fn, fn2 ) {
 	return this.click( toggler );
 };
 
+
+// Support for 'hover' type
+eventAdd = jQuery.event.add;
+
+//	Duck punch jQuery.event.add, and jquery.event.remove
+//	Signatures:
+//	jQuery.event = {
+//	add: function( elem, types, handler, data, selector ) {
+//	remove: function( elem, types, handler, selector, mappedTypes ) {
+jQuery.event.add = function( elem, types, handler, data, selector ){
+	if ( types ) {
+		types = hoverHack( types );
+	}
+	eventAdd.call( this, elem, types, handler, data, selector );
+};
+
+eventRemove = jQuery.event.remove;
+
+jQuery.event.remove = function( elem, types, handler, selector, mappedTypes ){
+	if ( types ) {
+		types = hoverHack( types );
+	}
+	eventRemove.call( this, elem, types, handler, selector, mappedTypes );
+};
+
+// Unused in 1.8, left in so attrFn-stabbers won't die; remove in 1.9
+jQuery.attrFn = {};
+
 })();
diff --git a/src/event.js b/src/event.js
index 3fea1a1be..f68a09c54 100644
--- a/src/event.js
+++ b/src/event.js
@@ -1,12 +1,8 @@
 var rformElems = /^(?:textarea|input|select)$/i,
 	rtypenamespace = /^([^\.]*|)(?:\.(.+)|)$/,
-	rhoverHack = /(?:^|\s)hover(\.\S+|)\b/,
 	rkeyEvent = /^key/,
 	rmouseEvent = /^(?:mouse|contextmenu)|click/,
-	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
-	hoverHack = function( events ) {
-		return jQuery.event.special.hover ? events : events.replace( rhoverHack, "mouseenter$1 mouseleave$1" );
-	};
+	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;
 
 /*
  * Helper functions for managing events -- not part of the public interface.
@@ -56,7 +52,7 @@ jQuery.event = {
 
 		// Handle multiple events separated by a space
 		// jQuery(...).bind("mouseover mouseout", fn);
-		types = jQuery.trim( hoverHack(types) ).split( " " );
+		types = jQuery.trim( types ).split( " " );
 		for ( t = 0; t < types.length; t++ ) {
 
 			tns = rtypenamespace.exec( types[t] ) || [];
@@ -139,7 +135,7 @@ jQuery.event = {
 		}
 
 		// Once for each type.namespace in types; type may be omitted
-		types = jQuery.trim( hoverHack( types || "" ) ).split(" ");
+		types = jQuery.trim( types ).split(" ");
 		for ( t = 0; t < types.length; t++ ) {
 			tns = rtypenamespace.exec( types[t] ) || [];
 			type = origType = tns[1];