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Make note about buttons/buttons and compat events normative #414

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Sep 30, 2021
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Make note about buttons/buttons and compat events normative #414

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Make note about buttons/buttons and compat events normative
patrickhlauke Sep 13, 2021
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Change SHOULD to MUST
patrickhlauke Sep 30, 2021
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Make note about buttons/buttons and compat events normative 
x-ref #405
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@patrickhlauke
patrickhlauke committed Sep 13, 2021
commit a9ca4123617b04eb752f49dbd339ef7a5ed9be58
2 changes: 1 addition & 1 deletion index.html
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Expand Up @@ -353,7 +353,7 @@ <h2>Button states</h2>
<h3><dfn data-lt="chorded buttons">Chorded button interactions</dfn></h3>
<p>Some pointer devices, such as mouse or pen, support multiple buttons. In the [[UIEVENTS]] Mouse Event model, each button press produces a <code>mousedown</code> and <code>mouseup</code> event. To better abstract this hardware difference and simplify cross-device input authoring, Pointer Events do not fire overlapping <code>pointerdown</code> and <code>pointerup</code> events for chorded button presses (depressing an additional button while another button on the pointer device is already depressed).</p>
<p>Instead, chorded button presses can be detected by inspecting changes to the <code>button</code> and <code>buttons</code> properties. The <code>button</code> and <code>buttons</code> properties are inherited from the {{MouseEvent}} interface, but with a change in semantics and values, as outlined in the following sections.</p>
<div class="note">The modifications to the <code>button</code> and <code>buttons</code> properties apply only to pointer events. For any <a>compatibility mouse events</a> the value of <code>button</code> and <code>buttons</code> should follow [[UIEVENTS]].</div>
<p>The modifications to the <code>button</code> and <code>buttons</code> properties apply only to pointer events. For any <a>compatibility mouse events</a> the value of <code>button</code> and <code>buttons</code> SHOULD follow [[UIEVENTS]].</p>
</section>
<section>
<h3>The <code>button</code> property</h3>
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