<html xmlns="
http://www.w3.org/1999/xhtml">
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1486952
-->
<head>
<title>Test that hit-testing works after a viewBox update</title>
<style>
:hover { fill: lime; }
</style>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body onload="run()">
<script class="testbody" type="text/javascript">
<![CDATA[
SimpleTest.waitForExplicitFinish();
function run() {
const div = $("div");
const offsetX = div.offsetLeft;
const offsetY = div.offsetTop;
const outerRect = $("outerRect");
const innerRect = $("innerRect");
const outerSVG = $("outerSVG");
const innerSVG = $("innerSVG");
let got;
// Update the inner SVG viewBox to "move" the inner rectangle off its current
// position on screen:
innerSVG.setAttribute("viewBox", "-25 0 50 50");
got = document.elementFromPoint(offsetX + 150, offsetY + 25);
is(got, innerRect, "Should hit inner rectangle (1)");
// Update the inner SVG viewBox again. (At the time of writing, a reflow is
// triggered the first time you change viewBox on an inner svg, so the
// previous test is expected to always pass. This next test will fail if we're
// updating overflows on the inner svg frame instead of its children).
innerSVG.setAttribute("viewBox", "0 -25 50 50");
got = document.elementFromPoint(offsetX + 100, offsetY + 75);
is(got, innerRect, "Should hit inner rectangle (2)");
// Now update the outer SVG viewBox and confirm that both rectangles are
// registered. (Note that in this case the overflow rectangle of the inner
// svg is the inner svg's viewport, so be sure to "move" the outer svg so that
// the "new" outer rectangle and inner svg are off the current outerRect
// union inner svg viewport - hit testing still works in that union.)
outerSVG.setAttribute("viewBox", "-200 0 400 100");
// Outer:
got = document.elementFromPoint(offsetX + 250, offsetY + 50);
is(got, outerRect, "Should hit outer rectangle");
// Inner:
got = document.elementFromPoint(offsetX + 300, offsetY + 75);
is(got, innerRect, "Should hit inner rectangle (3)");
SimpleTest.finish();
}
]]>
</script>
<a target="_blank" href="
https://bugzilla.mozilla.org/show_bug.cgi?id=1486952">Mozil
la Bug 1486952</a>
<p id="display"></p>
<div id="content">
<div width="100%" height="1" id="div"></div>
<svg xmlns="http://www.w3.org/2000/svg" id="outerSVG" width="400" height="100"
viewBox="0 0 400 100">
<rect x="25" y="25" width="50" height="50" fill="red" id="outerRect" />
<svg x="75" width="100" height="100" viewBox="0 0 50 50" id="innerSVG">
<rect width="25" height="25" fill="red" id="innerRect" />
</svg>
</svg>
</div>
<pre id="test">
</pre>
</body>
</html>
