deno.land / x / ultra@v2.3.8 / hooks / island-hydrator.js

island-hydrator.js
نووسراو ببینە
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
export function hydrateIslands() { const data = Object.fromEntries(globalThis.__ULTRA_ISLAND_DATA); const components = Object.fromEntries(globalThis.__ULTRA_ISLAND_COMPONENT); const baseUrl = globalThis.__ULTRA_ISLAND_URL;
const markers = Array.from( document.querySelectorAll("template[data-hydration-marker]"), );
function filterMarkers(strategy) { return markers.filter((m) => m.dataset.hydrationStrategy === strategy); }
const visible = filterMarkers("visible"); const idle = filterMarkers("idle"); const load = filterMarkers("load");
async function hydrateIsland(id, container) { const { createElement: h } = await import("react"); const { createRoot } = await import("react-dom/client"); const { props, name } = data[id];
const url = new URL( components[name], new URL(baseUrl, window.location.href), );
const root = createRoot(container); const { default: Component } = await import(url); root.render(h(Component, props)); }
if (visible.length) { const observer = new IntersectionObserver((entries, observer) => { entries.forEach(async (entry) => { if (entry.isIntersecting) { const m = entry.target.previousElementSibling; const id = m.dataset.hydrationMarker; await hydrateIsland(id, entry.target); observer.unobserve(entry.target); } }); });
visible.map((marker) => observer.observe(marker.nextElementSibling)); }
if (idle.length) { requestIdleCallback(() => { idle.map(async (m) => { const id = m.dataset.hydrationMarker; await hydrateIsland(id, m.nextElementSibling); }); }); }
if (load.length) { load.map(async (m) => { const id = m.dataset.hydrationMarker; await hydrateIsland(id, m.nextElementSibling); }); }}
ultra

Version Info

Tagged at
8 months ago