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This repository was archived by the owner on Jan 16, 2020. It is now read-only.
This repository was archived by the owner on Jan 16, 2020. It is now read-only.

Event handlers called multiple times when used on nested elements  #14

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@AdamDz

Description

@AdamDz

Pointer events triggered by nested elements bubble up. If there is another handler bound higher in DOM, a duplicate pointer event is triggered.

A minimal example:

<html>
<body>
    <div id="outer" style="border: 1px solid red; padding: 50px;">
        <div id="inner" style="border: 1px solid blue; padding: 50px;">
            Click me
        </div>
    </div>
    <script type="text/javascript" src="/static/www/js/lib/jquery.js"></script>
    <script type="text/javascript" src="/static/www/js/lib/pointer.js"></script>
    <script>
        $("#outer").on('pointerdown', function() {
            console.log('outer pointerdown');
        });

        $("#inner").on('pointerdown', function() {
            console.log('inner pointerdown');
        });
    </script>
</body>
</html>

A single click on the inner rectangle produces output:

inner pointerdown
outer pointerdown
inner pointerdown
outer pointerdown

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