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LibWeb: Implement named property access AOs on Window

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These allow accessing embeds, forms, images and objects with a given
name attribute, and any element with a given id attribute, as top level
properties on the global object.

It also allows accessing NavigableContainers by target name as top level
properties on the global object.

The current implementation feels very expensive. It's likely that
these values will need smarter caching in the future.
This commit is contained in:
Andrew Kaster 2023-09-19 16:40:42 -06:00 • committed by Andrew Kaster
parent 247f12d7b0
commit 5949e3c3e8
4 changed files with 164 additions and 2 deletions
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46
Tests/LibWeb/Text/input/HTML/Window-named-properties-elements.html Normal file
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<script src="../include.js"></script>
<embed name="m_bed" src="" type="">
<img name="im_adge" src="">
<form name="farm"></form>
<object name="abject"></object>
<div id="fred"></div>
<div id="fred"></div>
<div id="fred"></div>
<div id="george"></div>
<script>
test(() => {
let embeds = document.getElementsByTagName("embed");
let images = document.getElementsByTagName("img");
let forms = document.getElementsByTagName("form");
let objects = document.getElementsByTagName("object");
// NOTE: The whitespace at the beginning of the results is for the empty elements before the test
println(embeds[0] === m_bed);
println(images[0] === im_adge);
println(forms[0] === farm);
println(objects[0] === abject);
let freds = fred;
println(freds.length === 3)
let divs = document.getElementsByTagName("div");
for (let i = 0; i < 3; ++i) {
if (divs[i] !== freds[i])
println("FAIL: div " + i);
}
george.innerHTML = "george"
let also_fred = document.createElement("div");
also_fred.setAttribute("id", "fred");
document.body.appendChild(also_fred);
println(freds.length === 4);
// divs[3] is george
if (divs[4] !== freds[3])
println("FAILED: dynamic insertion");
// FIXME: Test the child navigable cases when window.open is less TODO
// let wandow = window.open("about:blank", "the_target");
// println(wandow === the_target);
// FIXME: Test that a child navigable is preferred over an element
});
</script>