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<!doctype html>
<title>ResizeObserver for SVG elements with CSS box.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/resizeTestHelper.js"></script>
<div id="container" style="width: 500px; height: 500px;">
<svg id="svg" width="100%" viewBox="0 0 100 100">
<circle cx="50" cy="50" r="45" style="fill:orange;stroke:black;stroke-width:1" />
<foreignObject id="foreign" x="0" y="0" width="100" height="100">
<svg xmlns="http://www.w3.org/2000/svg"
width="100%" height="100%"
viewBox="0 0 100 100"
id="foreign-svg">
<circle cx="50" cy="50" r="45" style="fill:orange;stroke:black;stroke-width:1" />
</svg>
</foreignObject>
</svg>
<script>
'use strict';
function test0() {
let targetWidth = 150;
let target = document.getElementById('foreign-svg');
let container = document.getElementById('foreign');
let helper = new ResizeTestHelper(
"test0: observe `foreignObject` SVG in HTML document",
[
{
setup: observer => {
observer.observe(target);
},
notify: (entries, observer) => {
return true; // Delay next step
}
},
{
setup: observer => {
target.setAttribute('width', targetWidth);
},
notify: entries => {
assert_equals(entries.length, 1);
const entry = entries[0];
assert_equals(entry.target, target);
assert_equals(entry.contentBoxSize[0].inlineSize, targetWidth);
},
}
]);
return helper.start();
}
function test1() {
let targetWidth = 400;
let target = document.getElementById('svg');
let container = document.getElementById('container');
let helper = new ResizeTestHelper(
"test1: observe inline SVG in HTML",
[
{
setup: observer => {
observer.observe(target);
},
notify: (entries, observer) => {
return true; // Delay next step
}
},
{
setup: observer => {
target.style.width = targetWidth + 'px';
},
notify: (entries, observer) => {
assert_equals(entries.length, 1);
const entry = entries[0];
assert_equals(entry.target, target);
assert_equals(entry.contentBoxSize[0].inlineSize, targetWidth);
}
}
]);
return helper.start();
}
let guard;
test(_ => {
assert_implements(window.ResizeObserver);
guard = async_test('guard');
}, "ResizeObserver implemented")
test0()
.then(() => { test1(); })
.then(() => { guard.done(); });
</script>
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