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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Mask behaviour when mask image is missing or display:none</title>
<link rel="match" href="display-none-mask-ref.html">
<link name="author" title="Timothy Nikkel" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1624532">
<link name="author" title="Mike Bremford" href="http://bfo.com"> <!-- edited 202010 -->
<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-mask-image">
<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#MaskElement">
<link rel="help" href="https://github.com/w3c/fxtf-drafts/issues/245">
<meta name="assert" content="A missing or invalid mask image is equivalent to transparent black (i.e. nothing is displayed). A mask with display:none is disabled (which is a change to the specified behaviour as of issue 245)">
</head>
<body>
<svg width="200" height="200">
<!-- missing/invalid mask is equivalent to transparent black - nothing displayed -->
<foreignObject x="0" y="0" width="200" height="200" style="mask: url('#notfound');">
<div style="width: 200px; height: 200px; background: red"></div>
</foreignObject>
</svg>
<svg width="200" height="200">
<!-- display:none on mask means mask is not applied (new in https://github.com/w3c/fxtf-drafts/issues/245) -->
<foreignObject x="0" y="0" width="200" height="200" style="mask: url('#noneMask');">
<div style="width: 200px; height: 200px; background: green"></div>
</foreignObject>
</svg>
<svg width="200" height="200">
<foreignObject x="0" y="0" width="200" height="200">
<!-- missing/invalid mask is equivalent to transparent black - nothing displayed -->
<div style="width: 200px; height: 200px; background: red; mask: url('#notfound');"></div>
</foreignObject>
</svg>
<svg width="200" height="200">
<foreignObject x="0" y="0" width="200" height="200">
<!-- display:none on mask means mask is not applied (new in https://github.com/w3c/fxtf-drafts/issues/245) -->
<div style="width: 200px; height: 200px; background: green; mask: url('#noneMask');"></div>
</foreignObject>
</svg>
<svg width="200" height="200" style="display:none">
<defs>
<mask id="noneMask">
<rect x="0" y="0" width="200" height="200" fill="#4d4d4d"></rect>
</mask>
</defs>
</svg>
<!-- make sure masking actually works -->
<svg width="200" height="200">
<defs>
<mask id="aMask">
<rect x="0" y="0" width="100" height="50" fill="#ffffff"></rect>
<rect x="0" y="100" width="100" height="50" fill="#ffffff"></rect>
</mask>
</defs>
<foreignObject x="0" y="0" width="200" height="200" style="mask: url('#aMask');">
<div style="width: 200px; height: 200px; background: green;"></div>
</foreignObject>
</svg>
<svg width="200" height="200">
<foreignObject x="0" y="0" width="200" height="200">
<div style="width: 200px; height: 200px; background: green; mask: url('#aMask');"></div>
</foreignObject>
</svg>
<!-- make sure masking works on active content -->
<svg width="200" height="200">
<foreignObject x="0" y="0" width="200" height="200" style="mask: url('#aMask');">
<div style="width: 200px; height: 200px; background: green; will-change: transform"></div>
</foreignObject>
</svg>
<svg width="200" height="200">
<foreignObject x="0" y="0" width="200" height="200">
<div style="width: 200px; height: 200px; background: green; will-change: transform; mask: url('#aMask');"></div>
</foreignObject>
</svg>
</body>
</html>
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