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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/html/semantics/embedded-content/the-img-element/sizes/sizes-dynamic-002.html | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/html/semantics/embedded-content/the-img-element/sizes/sizes-dynamic-002.html')
-rw-r--r-- | testing/web-platform/tests/html/semantics/embedded-content/the-img-element/sizes/sizes-dynamic-002.html | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/sizes/sizes-dynamic-002.html b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/sizes/sizes-dynamic-002.html new file mode 100644 index 0000000000..6c64b3da39 --- /dev/null +++ b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/sizes/sizes-dynamic-002.html @@ -0,0 +1,33 @@ +<!doctype html> +<html class="reftest-wait"> +<title>Image intrinsic size specified via sizes attribute reacts properly to media changes in Shadow DOM</title> +<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> +<link rel="match" href="sizes-dynamic-001-ref.html"> +<link rel="help" href="https://html.spec.whatwg.org/#sizes-attributes"> +<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1149357"> +<script> +function frameLoaded(frame) { + let doc = frame.contentDocument; + let shadow = doc.getElementById("host").attachShadow({ mode: "open" }); + + let img = doc.createElement("img"); + img.srcset = "/images/green-256x256.png 100w"; + img.style.maxWidth = "100%"; + img.setAttribute("sizes", "(min-width: 400px) 10px, 20px"); + + img.onload = function() { + img.offsetWidth; // Flush layout. + + frame.width = "500"; + + // Trigger the viewport resize, which will trigger the image load task. + img.offsetWidth; + + // Wait for the image load task to run. + setTimeout(() => document.documentElement.removeAttribute("class"), 0); + }; + + shadow.appendChild(img); +} +</script> +<iframe onload="frameLoaded(this)" width="200" height="500" srcdoc='<!doctype html><div id="host"></div>'></iframe> |