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zhaojs

2023-07-05 70498d4681598592921f4ada7612e6c1f47ef0fd

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define( [
    "../core",
    "../data/var/dataPriv",
    "./support",
 
    "../event",
    "./trigger"
], function( jQuery, dataPriv, support ) {
 
// Support: Firefox
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome, Safari
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://code.google.com/p/chromium/issues/detail?id=449857
if ( !support.focusin ) {
    jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
 
        // Attach a single capturing handler on the document while someone wants focusin/focusout
        var handler = function( event ) {
            jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
        };
 
        jQuery.event.special[ fix ] = {
            setup: function() {
                var doc = this.ownerDocument || this,
                    attaches = dataPriv.access( doc, fix );
 
                if ( !attaches ) {
                    doc.addEventListener( orig, handler, true );
                }
                dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
            },
            teardown: function() {
                var doc = this.ownerDocument || this,
                    attaches = dataPriv.access( doc, fix ) - 1;
 
                if ( !attaches ) {
                    doc.removeEventListener( orig, handler, true );
                    dataPriv.remove( doc, fix );
 
                } else {
                    dataPriv.access( doc, fix, attaches );
                }
            }
        };
    } );
}
 
return jQuery;
} );