bits-ui
Version:
The headless components for Svelte.
106 lines (105 loc) • 3.52 kB
JavaScript
import { DOMContext, attachRef, } from "svelte-toolbelt";
import { Context, watch } from "runed";
import { createBitsAttrs } from "../../internal/attrs.js";
const avatarAttrs = createBitsAttrs({
component: "avatar",
parts: ["root", "image", "fallback"],
});
const AvatarRootContext = new Context("Avatar.Root");
export class AvatarRootState {
static create(opts) {
return AvatarRootContext.set(new AvatarRootState(opts));
}
opts;
domContext;
attachment;
constructor(opts) {
this.opts = opts;
this.domContext = new DOMContext(this.opts.ref);
this.loadImage = this.loadImage.bind(this);
this.attachment = attachRef(this.opts.ref);
}
loadImage(src, crossorigin, referrerPolicy) {
if (this.opts.loadingStatus.current === "loaded")
return;
let imageTimerId;
const image = new Image();
image.src = src;
if (crossorigin !== undefined)
image.crossOrigin = crossorigin;
if (referrerPolicy)
image.referrerPolicy = referrerPolicy;
this.opts.loadingStatus.current = "loading";
image.onload = () => {
imageTimerId = this.domContext.setTimeout(() => {
this.opts.loadingStatus.current = "loaded";
}, this.opts.delayMs.current);
};
image.onerror = () => {
this.opts.loadingStatus.current = "error";
};
return () => {
if (!imageTimerId)
return;
this.domContext.clearTimeout(imageTimerId);
};
}
props = $derived.by(() => ({
id: this.opts.id.current,
[avatarAttrs.root]: "",
"data-status": this.opts.loadingStatus.current,
...this.attachment,
}));
}
export class AvatarImageState {
static create(opts) {
return new AvatarImageState(opts, AvatarRootContext.get());
}
opts;
root;
attachment;
constructor(opts, root) {
this.opts = opts;
this.root = root;
this.attachment = attachRef(this.opts.ref);
watch.pre([() => this.opts.src.current, () => this.opts.crossOrigin.current], ([src, crossOrigin]) => {
if (!src) {
this.root.opts.loadingStatus.current = "error";
return;
}
this.root.loadImage(src, crossOrigin, this.opts.referrerPolicy.current);
});
}
props = $derived.by(() => ({
id: this.opts.id.current,
style: {
display: this.root.opts.loadingStatus.current === "loaded" ? "block" : "none",
},
"data-status": this.root.opts.loadingStatus.current,
[avatarAttrs.image]: "",
src: this.opts.src.current,
crossorigin: this.opts.crossOrigin.current,
referrerpolicy: this.opts.referrerPolicy.current,
...this.attachment,
}));
}
export class AvatarFallbackState {
static create(opts) {
return new AvatarFallbackState(opts, AvatarRootContext.get());
}
opts;
root;
attachment;
constructor(opts, root) {
this.opts = opts;
this.root = root;
this.attachment = attachRef(this.opts.ref);
}
style = $derived.by(() => this.root.opts.loadingStatus.current === "loaded" ? { display: "none" } : undefined);
props = $derived.by(() => ({
style: this.style,
"data-status": this.root.opts.loadingStatus.current,
[avatarAttrs.fallback]: "",
...this.attachment,
}));
}