jQuery UI は、hoverIntent
アニメーション キューの問題に対処するために、アコーディオン選択の機能を実装しました。彼らが使用したスニペットは次のとおりです->
//on DOM ready
$(function() {
$("#accordion").accordion({
event: "click hoverintent"
);
});
var cfg = ($.hoverintent = {
sensitivity: 7,
interval: 100
});
$.event.special.hoverintent = {
setup: function() {
$( this ).bind( "mouseover", jQuery.event.special.hoverintent.handler );
},
teardown: function() {
$( this ).unbind( "mouseover", jQuery.event.special.hoverintent.handler );
},
handler: function( event ) {
var self = this,
args = arguments,
target = $( event.target ),
cX, cY, pX, pY;
function track( event ) {
cX = event.pageX;
cY = event.pageY;
};
pX = event.pageX;
pY = event.pageY;
function clear() {
target
.unbind( "mousemove", track )
.unbind( "mouseout", arguments.callee );
clearTimeout( timeout );
}
function handler() {
if ( ( Math.abs( pX - cX ) + Math.abs( pY - cY ) ) < cfg.sensitivity ) {
clear();
event.type = "hoverintent";
// prevent accessing the original event since the new event
// is fired asynchronously and the old event is no longer
// usable (#6028)
event.originalEvent = {};
jQuery.event.handle.apply( self, args );
} else {
pX = cX;
pY = cY;
timeout = setTimeout( handler, cfg.interval );
}
}
var timeout = setTimeout( handler, cfg.interval );
target.mousemove( track ).mouseout( clear );
return true;
}
};