switch_reentrant_removal.html

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This WPT test may be referenced by the following Test IDs:
- /svg/struct/scripted/switch_reentrant_removal.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<meta charset="utf-8">

<title>SVG switch active child during reentrant removal</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<svg width="300" height="300">

  <switch id="switch">

    <foreignObject id="child" width="100" height="100">

      <iframe id="trigger" srcdoc="<!doctype html><body>unload"></iframe>

    </foreignObject>

    <rect width="50" height="50"/>

  </switch>

</svg>

<iframe id="destination" srcdoc="<!doctype html>

  <svg width='300' height='300'>

    <g id='target' transform='translate(1 1)'></g>

  </svg>"></iframe>

<script>

async_test(t => {

  window.addEventListener("load", () => {

    const sw = document.getElementById("switch");

    const child = document.getElementById("child");

    const trigger = document.getElementById("trigger");

    const destination = document.getElementById("destination").contentDocument;

    const target = destination.getElementById("target");

    assert_equals(sw.getBBox().width, 100, "The foreignObject is initially active");

    let didUnload = false;

    trigger.contentWindow.addEventListener("unload", () => {

      didUnload = true;

      assert_equals(child.parentNode, null, "The active child has been removed");

      trigger.remove();

      target.appendChild(child);

      assert_equals(child.getBBox().width, 100, "The adopted child has a frame");

      // Invalidate the old switch so its bounds have to be recomputed while

      // removeChild is still on the stack.

      sw.setAttribute("transform", "translate(2 2)");

      assert_equals(sw.getBBox().width, 50, "Only the remaining child contributes bounds");

      child.remove();

    }, { once: true });

    sw.removeChild(child);

    assert_true(didUnload, "The unload handler ran during removeChild");

    assert_equals(sw.getBBox().width, 50, "The remaining child is still active");

    t.done();

 }, { once: true });

}, "SVG switch active child during reentrant removal");

</script>

</script>

</html>