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When a native browser event is bubbling up the DOM, make sure that the correct isDefaultPrevented value is reflected by jQuery's Event object. Fixes #7793.

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This commit is contained in:
Dave Methvin 2010-12-23 16:21:14 -05:00
parent 1f92edee20
commit 0b6afcedd2
2 changed files with 44 additions and 0 deletions
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6
src/event.js
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@ -600,6 +600,12 @@ jQuery.Event = function( src ) {
if ( src && src.type ) { if ( src && src.type ) {
this.originalEvent = src; this.originalEvent = src;
this.type = src.type; this.type = src.type;
// Events bubbling up the document may have been marked as prevented
// by a handler lower down the tree; reflect the correct value.
this.isDefaultPrevented =
(src.defaultPrevented===true ? true :
src.getPreventDefault ? src.getPreventDefault() :
src.returnValue===false) ? returnTrue : returnFalse;
// Event type // Event type
} else { } else {
this.type = src; this.type = src;

38
test/unit/event.js
View file

@ -295,6 +295,44 @@ test("live/delegate immediate propagation", function() {
$p.undelegate( "click" ); $p.undelegate( "click" );
}); });
test("bind/delegate bubbling, isDefaultPrevented", function() {
expect(2);
var $anchor2 = jQuery( "#anchor2" ),
$main = jQuery( "#main" ),
fakeClick = function($jq) {
// Prefer a native click so we don't get jQuery simulated bubbling
if ( $jq[0].click ) {
$jq[0].click(); // IE
}
else if ( document.createEvent ) {
var e = document.createEvent( 'MouseEvents' );
e.initEvent( "click", true, true );
$jq[0].dispatchEvent(e);
}
else {
$jq.click();
}
};
$anchor2.click(function(e) {
e.preventDefault();
});
$main.delegate("#foo", "click", function(e) {
equals( e.isDefaultPrevented(), true, "isDefaultPrevented true passed to bubbled event" );
});
fakeClick( $anchor2 );
$anchor2.unbind( "click" );
$main.undelegate( "click" );
$anchor2.click(function(e) {
// Let the default action occur
});
$main.delegate("#foo", "click", function(e) {
equals( e.isDefaultPrevented(), false, "isDefaultPrevented false passed to bubbled event" );
});
fakeClick( $anchor2 );
$anchor2.unbind( "click" );
$main.undelegate( "click" );
});
test("bind(), iframes", function() { test("bind(), iframes", function() {
// events don't work with iframes, see #939 - this test fails in IE because of contentDocument // events don't work with iframes, see #939 - this test fails in IE because of contentDocument
var doc = jQuery("#loadediframe").contents(); var doc = jQuery("#loadediframe").contents();