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SplitButton.svelte floating UI behavior #193

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SplitButton.svelte floating UI behavior #193

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502b1cf
feat: SplitButton.svelte add floating behavior
Sep 25, 2025
06bba95
chore: change the priority of locations
Sep 25, 2025
d6332e7
chore: return the accidentally lost demo3.svelte
Sep 25, 2025
fd2a02b
chore: remove changes in slider.svelte that are not related to the to…
Sep 25, 2025
bdd5bdd
feat: process the case when the drop -down list is located in the sta…
Sep 25, 2025
7297c62
chore: remove unused class
Sep 25, 2025
d09237a
chore: remove changes not regarding the current pr (https://github.co…
Sep 25, 2025
b66f460
feat!: add fallback styles and remove .floating-container container
Sep 25, 2025
2ee771b
chore: lint styles
Sep 25, 2025
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57 changes: 46 additions & 11 deletions src/lib/buttons/SplitButton.svelte
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
children: Snippet;
menu: Snippet;
} & ButtonAttrs = $props();
const id = $props.id();

const autoclose = (node: HTMLDetailsElement) => {
const close = (e: Event) => {
Expand All @@ -35,7 +36,7 @@
};
</script>

<div class="m3-container {variant}">
<div class="m3-container {variant}" style:--anchor-name="--{id}">
<button type="button" class="split m3-font-label-large" {...extra}>
<Layer />
{@render children()}
Expand Down Expand Up @@ -160,19 +161,53 @@
translate var(--m3-util-easing-fast);
}
}
details > :global(:not(summary)) :global {
position: absolute !important;
&:is(details.align-inner > *) {
left: 0;

@supports (anchor-name: --a) {
@position-try --bottom-right {
position-area: bottom right;
margin-left: -3rem;
}
@position-try --top-right {
position-area: top right;
margin-left: -3rem;
}
@position-try --bottom-left {
position-area: bottom left;
margin-right: -3rem;
}
&:is(details.align-right > *) {
right: 0;
@position-try --top-left {
position-area: top left;
margin-right: -3rem;
}
&:is(details.align-down > *) {
top: 100%;
details {
z-index: 1;
& summary {
anchor-name: var(--anchor-name);
}
& > :global(:not(summary)) :global {
position: fixed !important;
position-anchor: var(--anchor-name);
margin-left: -3rem;
position-try-fallbacks: --bottom-right, --top-right, --bottom-left, --top-left;
}
}
&:is(details.align-up > *) {
bottom: 100%;
}

@supports not (anchor-name: --a) {
details > :global(:not(summary)) :global {
position: absolute !important;
&:is(details.align-inner > *) {
left: 0;
}
&:is(details.align-right > *) {
right: 0;
}
&:is(details.align-down > *) {
top: 100%;
}
&:is(details.align-up > *) {
bottom: 100%;
}
}
}

Expand Down