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(function(){ | |
function check(e, selector, fn){ | |
var target = e.target, | |
els = this.getElements(selector), | |
isOverOut = /^(mouseover|mouseout)$/.test(e.type); | |
for (var i = els.length; i--; ){ | |
var el = els[i]; | |
if (el == target || el.hasChild(target)){ | |
if (isOverOut && !checkOverOut.call(el, e)) return; | |
fn.call(el, e, el); | |
return; | |
} | |
} | |
} | |
function checkOverOut(e){ | |
var related = e.relatedTarget; | |
return related == undefined | |
|| related !== false | |
&& $type(this) != 'document' | |
&& related != this | |
&& related.prefix != 'xul' | |
&& !this.hasChild(related); | |
} | |
Element.Properties.relayedEvents = { | |
set: function(obj){ | |
this.relayEvents(obj); | |
} | |
}; | |
Element.implement({ | |
relayEvent: function(selector, type, fn){ | |
type = { mouseenter: 'mouseover', mouseleave: 'mouseout'}[type] || type; | |
var revents = this.retrieve('$moo:revents'); | |
if (!revents) this.store('$moo:revents', revents = {}); | |
var sel = revents[selector] = revents[selector] || {}; | |
sel[type] = sel[type] || []; | |
var fn = check.bindWithEvent(this, [selector, fn]); | |
sel[type].push(fn); | |
return this.addEvent(type, fn); | |
}, | |
relayEvents: function(selector, events){ | |
if (/^(hash|object)$/.test($type(selector))) | |
for (var sel in selector) this.relayEvents(sel, selector[sel]); | |
else | |
for (var type in events) this.relayEvent(selector, type, events[type]); | |
return this; | |
}, | |
unrelayEvents: function(selector){ | |
var events = this.retrieve('$moo:revents'); | |
if (events && events[selector]){ | |
for (var type in events[selector]){ | |
events[selector][type].each(function(fn){ | |
this.removeEvent(type, fn); | |
}, this); | |
} | |
} | |
return this; | |
} | |
}); | |
})(); |
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