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Cleaned up how event removing was handled. All expandos are now removed when they are no longer needed. Additionally, a bug where all events are unbound if an incorrect event handler is provided, was fixed.

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This commit is contained in:
John Resig 2007-03-01 04:54:51 +00:00
parent f8fcc9525d
commit 6b729ff798
2 changed files with 36 additions and 23 deletions
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42
src/event/event.js
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@ -55,35 +55,41 @@ jQuery.event = {
// Detach an event or set of events from an element // Detach an event or set of events from an element
remove: function(element, type, handler) { remove: function(element, type, handler) {
if (element.$events) { var events = element.$events, ret;
var i,j,k;
if ( type && type.type ) { // type is actually an event object here if ( events ) {
// type is actually an event object here
if ( type && type.type ) {
handler = type.handler; handler = type.handler;
type = type.type; type = type.type;
} }
if (type && element.$events[type]) if ( !type ) {
for ( type in events )
this.remove( element, type );
} else if ( events[type] ) {
// remove the given handler for the given type // remove the given handler for the given type
if ( handler ) if ( handler )
delete element.$events[type][handler.guid]; delete events[type][handler.guid];
// remove all handlers for the given type // remove all handlers for the given type
else else
for ( i in element.$events[type] ) for ( handler in events[type] )
delete element.$events[type][i]; delete events[type][handler];
// remove all handlers // remove generic event handler if no more handlers exist
else for ( ret in events[type] ) break;
for ( j in element.$events ) if ( !ret ) {
this.remove( element, j ); ret = element["on" + type] = undefined;
delete events[type];
// remove event handler if no more handlers exist
for ( k in element.$events[type] )
if (k) {
k = true;
break;
} }
if (!k) element["on" + type] = null; }
// Remove the expando if it's no longer used
for ( ret in events ) break;
if ( !ret )
delete element.$events;
} }
}, },

9
src/event/eventTest.js
View file

@ -15,7 +15,7 @@ test("toggle(Function, Function) - add toggle event and fake a few clicks", func
}); });
test("unbind(event)", function() { test("unbind(event)", function() {
expect(4); expect(6);
var el = $("#firstp"); var el = $("#firstp");
el.click(function() { el.click(function() {
ok( true, "Fake normal bind" ); ok( true, "Fake normal bind" );
@ -29,6 +29,13 @@ test("unbind(event)", function() {
el.click(function() { return; }); el.click(function() { return; });
el.unbind('click'); el.unbind('click');
ok( !el[0].onclick, "Handler is removed" ); // Bug #964 ok( !el[0].onclick, "Handler is removed" ); // Bug #964
el.click(function() { return; });
el.unbind('change',function(){ return; });
ok( el[0].onclick, "Extra handlers weren't accidentally removed." );
el.unbind('click');
ok( !el[0].$events, "Removed the events expando after all handlers are unbound." );
}); });
test("trigger(event, [data]", function() { test("trigger(event, [data]", function() {