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Event: Prevent leverageNative from registering duplicate dummy handlers

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Closes gh-4353
This commit is contained in:
Richard Gibson 2019-04-29 13:26:53 -04:00 committed by Michał Gołębiowski-Owczarek
parent 24d71ac704
commit 6c1e7dbf73
1 changed files with 5 additions and 5 deletions
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8
src/event.js
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@ -479,8 +479,7 @@ jQuery.event = {
// Claim the first handler
if ( rcheckableType.test( el.type ) &&
el.click && nodeName( el, "input" ) &&
dataPriv.get( el, "click" ) === undefined ) {
el.click && nodeName( el, "input" ) ) {
// dataPriv.set( el, "click", ... )
leverageNative( el, "click", returnTrue );
@ -497,8 +496,7 @@ jQuery.event = {
// Force setup before triggering a click
if ( rcheckableType.test( el.type ) &&
el.click && nodeName( el, "input" ) &&
dataPriv.get( el, "click" ) === undefined ) {
el.click && nodeName( el, "input" ) ) {
leverageNative( el, "click" );
}
@ -539,7 +537,9 @@ function leverageNative( el, type, expectSync ) {
// Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add
if ( !expectSync ) {
if ( dataPriv.get( el, type ) === undefined ) {
jQuery.event.add( el, type, returnTrue );
}
return;
}