477
A small example to demonstrate how both these propagation stoppages work.
var state = {
stopPropagation: false,
stopImmediatePropagation: false
};
function handlePropagation(event) {
if (state.stopPropagation) {
event.stopPropagation();
}
if (state.stopImmediatePropagation) {
event.stopImmediatePropagation();
}
}
$("#child").click(function(e) {
handlePropagation(e);
console.log("First event handler on #child");
});
$("#child").click(function(e) {
handlePropagation(e);
console.log("Second event handler on #child");
});
// First this event will fire on the child element, then propogate up and
// fire for the parent element.
$("div").click(function(e) {
handlePropagation(e);
console.log("Event handler on div: #" + this.id);
});
// Enable/disable propogation
$("button").click(function() {
var objectId = this.id;
$(this).toggleClass('active');
state[objectId] = $(this).hasClass('active');
console.log('---------------------');
});div {
padding: 1em;
}
#parent {
background-color: #CCC;
}
#child {
background-color: #000;
padding: 5em;
}
button {
padding: 1em;
font-size: 1em;
}
.active {
background-color: green;
color: white;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="parent">
<div id="child"> </div>
</div>
<button id="stopPropagation">Stop Propogation</button>
<button id="stopImmediatePropagation" ">Stop Immediate Propogation</button>