376 lines
13 KiB
JavaScript
376 lines
13 KiB
JavaScript
/** SigPro (Signals & Proxies) */
|
|
|
|
// Helpers
|
|
const doc = typeof document !== "undefined" ? document : null;
|
|
const isArr = Array.isArray, isFunc = f => typeof f === "function", isObj = o => o && typeof o === "object";
|
|
const ensureNode = n => n?._isRuntime ? n.container : (n instanceof Node ? n : doc.createTextNode(n == null ? "" : String(n)));
|
|
|
|
let activeEffect = null, activeOwner = null, isFlushing = false;
|
|
const effectQueue = new Set(), MOUNTED_NODES = new WeakMap();
|
|
|
|
const dispose = eff => {
|
|
if (!eff || eff._disposed) return;
|
|
eff._disposed = true;
|
|
const stack = [eff];
|
|
while (stack.length) {
|
|
const e = stack.pop();
|
|
if (e._cleanups) { e._cleanups.forEach(fn => fn()); e._cleanups.clear(); }
|
|
if (e._children) { e._children.forEach(child => stack.push(child)); e._children.clear(); }
|
|
if (e._deps) { e._deps.forEach(depSet => depSet.delete(e)); e._deps.clear(); }
|
|
}
|
|
};
|
|
|
|
export const onUnmount = fn => {
|
|
if (activeOwner) (activeOwner._cleanups ||= new Set()).add(fn);
|
|
};
|
|
|
|
// Effect creation
|
|
const createEffect = (fn, isComputed = false) => {
|
|
const effect = () => {
|
|
if (effect._disposed) return;
|
|
if (effect._deps) effect._deps.forEach(depSet => depSet.delete(effect));
|
|
if (effect._cleanups) { effect._cleanups.forEach(cl => cl()); effect._cleanups.clear(); }
|
|
const prevEffect = activeEffect, prevOwner = activeOwner;
|
|
activeEffect = activeOwner = effect;
|
|
try {
|
|
const res = isComputed ? fn() : (fn(), undefined);
|
|
if (!isComputed) effect._result = res; // ← ESTO ES LO NUEVO
|
|
return res;
|
|
} finally {
|
|
activeEffect = prevEffect;
|
|
activeOwner = prevOwner;
|
|
}
|
|
};
|
|
effect._deps = effect._cleanups = effect._children = null;
|
|
effect._disposed = false;
|
|
effect._isComputed = isComputed;
|
|
effect._depth = activeEffect ? activeEffect._depth + 1 : 0;
|
|
effect._mounts = [];
|
|
effect._parent = activeOwner;
|
|
effect._provisions = activeOwner ? { ...activeOwner._provisions } : {};
|
|
if (activeOwner) (activeOwner._children ||= new Set()).add(effect);
|
|
return effect;
|
|
};
|
|
|
|
const flush = () => {
|
|
if (isFlushing) return;
|
|
isFlushing = true;
|
|
const sorted = Array.from(effectQueue).sort((a, b) => a._depth - b._depth);
|
|
effectQueue.clear();
|
|
for (const e of sorted) if (!e._disposed) e();
|
|
isFlushing = false;
|
|
};
|
|
|
|
const trackUpdate = (subs, trigger = false) => {
|
|
if (!trigger && activeEffect && !activeEffect._disposed) {
|
|
subs.add(activeEffect);
|
|
(activeEffect._deps ||= new Set()).add(subs);
|
|
} else if (trigger) {
|
|
let hasQueue = false;
|
|
subs.forEach(e => {
|
|
if (e === activeEffect || e._disposed) return;
|
|
if (e._isComputed) {
|
|
e._dirty = true;
|
|
if (e._subs) trackUpdate(e._subs, true);
|
|
} else {
|
|
effectQueue.add(e);
|
|
hasQueue = true;
|
|
}
|
|
});
|
|
if (hasQueue && !isFlushing) queueMicrotask(flush);
|
|
}
|
|
};
|
|
|
|
export const untrack = fn => { const p = activeEffect; activeEffect = null; try { return fn(); } finally { activeEffect = p; } };
|
|
|
|
export const onMount = fn => {
|
|
if (activeOwner) (activeOwner._mounts ||= []).push(fn);
|
|
};
|
|
|
|
// Reactive state
|
|
export const $ = (val, key = null) => {
|
|
const subs = new Set();
|
|
if (isFunc(val)) {
|
|
let cache, dirty = true;
|
|
const computed = () => {
|
|
if (dirty) {
|
|
const prev = activeEffect;
|
|
activeEffect = computed;
|
|
try {
|
|
const next = val();
|
|
if (!Object.is(cache, next)) { cache = next; dirty = false; trackUpdate(subs, true); }
|
|
} finally { activeEffect = prev; }
|
|
}
|
|
trackUpdate(subs);
|
|
return cache;
|
|
};
|
|
computed._isComputed = true;
|
|
computed._subs = subs;
|
|
computed._dirty = true;
|
|
computed._deps = null;
|
|
computed._disposed = false;
|
|
computed.markDirty = () => { dirty = true; };
|
|
computed.stop = () => {
|
|
computed._disposed = true;
|
|
if (computed._deps) { computed._deps.forEach(depSet => depSet.delete(computed)); computed._deps.clear(); }
|
|
subs.clear();
|
|
};
|
|
onUnmount(computed.stop);
|
|
return computed;
|
|
}
|
|
if (key) try { val = JSON.parse(localStorage.getItem(key)) ?? val; } catch (e) { }
|
|
return (...args) => {
|
|
if (args.length) {
|
|
const next = isFunc(args[0]) ? args[0](val) : args[0];
|
|
if (!Object.is(val, next)) { val = next; if (key) localStorage.setItem(key, JSON.stringify(val)); trackUpdate(subs, true); }
|
|
}
|
|
trackUpdate(subs);
|
|
return val;
|
|
};
|
|
};
|
|
|
|
export const $$ = (obj, cache = new WeakMap()) => {
|
|
if (!isObj(obj)) return obj;
|
|
if (cache.has(obj)) return cache.get(obj);
|
|
const subs = {};
|
|
const proxy = new Proxy(obj, {
|
|
get: (t, k) => { trackUpdate(subs[k] ??= new Set()); return isObj(t[k]) ? $$(t[k], cache) : t[k]; },
|
|
set: (t, k, v) => { if (!Object.is(t[k], v)) { t[k] = v; if (subs[k]) trackUpdate(subs[k], true); } return true; }
|
|
});
|
|
cache.set(obj, proxy);
|
|
return proxy;
|
|
};
|
|
|
|
// Watcher
|
|
export const Watch = (sources, cb) => {
|
|
const isArr = Array.isArray(sources);
|
|
const effect = createEffect(() => {
|
|
const vals = isArr ? sources.map(s => s()) : sources();
|
|
untrack(() => cb(vals));
|
|
});
|
|
effect();
|
|
return () => dispose(effect);
|
|
}
|
|
|
|
const cleanupNode = node => {
|
|
if (node._cleanups) { node._cleanups.forEach(fn => fn()); node._cleanups.clear(); }
|
|
if (node._ownerEffect) dispose(node._ownerEffect);
|
|
if (node.childNodes) node.childNodes.forEach(cleanupNode);
|
|
};
|
|
|
|
// provide/inject
|
|
export const provide = (key, value) => {
|
|
if (activeOwner) activeOwner._provisions[key] = value;
|
|
};
|
|
|
|
export const inject = (key, defaultValue) => {
|
|
let ctx = activeOwner;
|
|
while (ctx) {
|
|
if (key in ctx._provisions) return ctx._provisions[key];
|
|
ctx = ctx._parent;
|
|
}
|
|
return defaultValue;
|
|
};
|
|
|
|
// CreateElement
|
|
export const Tag = (tag, props = {}, children = []) => {
|
|
if (props instanceof Node || isArr(props) || !isObj(props)) { children = props; props = {}; }
|
|
if (isFunc(tag)) {
|
|
const ctx = {
|
|
_mounts: [],
|
|
_cleanups: new Set(),
|
|
_provisions: activeOwner?._provisions ? { ...activeOwner._provisions } : {}
|
|
};
|
|
const effect = createEffect(() => {
|
|
const result = tag(props, {
|
|
children,
|
|
emit: (ev, ...args) => props[`on${ev[0].toUpperCase()}${ev.slice(1)}`]?.(...args)
|
|
});
|
|
effect._result = result;
|
|
return result;
|
|
});
|
|
effect();
|
|
ctx._mounts = effect._mounts || [];
|
|
ctx._cleanups = effect._cleanups || new Set();
|
|
const result = effect._result;
|
|
const attachLifecycle = (node) => node && typeof node === 'object' && !node._isRuntime && (node._mounts = ctx._mounts, node._cleanups = ctx._cleanups, node._ownerEffect = effect);
|
|
Array.isArray(result) ? result.forEach(attachLifecycle) : attachLifecycle(result);
|
|
if (result == null) return null;
|
|
if (isNode(result) || (Array.isArray(result) && result.every(isNode))) return result;
|
|
return doc.createTextNode(String(result));
|
|
}
|
|
const isSVG = /^(svg|path|circle|rect|line|polyline|polygon|g|defs|text|tspan|use)$/.test(tag);
|
|
const el = isSVG ? doc.createElementNS("http://www.w3.org/2000/svg", tag) : doc.createElement(tag);
|
|
el._cleanups = new Set();
|
|
for (let [k, v] of Object.entries(props)) {
|
|
if (k === "ref") { isFunc(v) ? v(el) : (v.current = el); continue; }
|
|
if (k.startsWith("on")) {
|
|
const ev = k.slice(2).toLowerCase();
|
|
el.addEventListener(ev, v);
|
|
const off = () => el.removeEventListener(ev, v);
|
|
el._cleanups.add(off);
|
|
onUnmount(off);
|
|
} else if (isFunc(v)) {
|
|
const effect = createEffect(() => {
|
|
const val = v();
|
|
const safe = (k === 'src' || k === 'href') && String(val).includes('javascript:') ? '#' : val;
|
|
if (k === "class") el.className = safe || "";
|
|
else if (safe == null || safe === false) el.removeAttribute(k);
|
|
else el.setAttribute(k, safe === true ? "" : safe);
|
|
});
|
|
effect();
|
|
el._cleanups.add(() => dispose(effect));
|
|
onUnmount(() => dispose(effect));
|
|
if (/^(INPUT|TEXTAREA|SELECT)$/.test(el.tagName) && (k === "value" || k === "checked")) {
|
|
const evType = k === "checked" ? "change" : "input";
|
|
el.addEventListener(evType, ev => v(ev.target[k]));
|
|
}
|
|
} else el.setAttribute(k, v);
|
|
}
|
|
const append = c => {
|
|
if (isArr(c)) return c.forEach(append);
|
|
if (isFunc(c)) {
|
|
const anchor = doc.createTextNode("");
|
|
el.appendChild(anchor);
|
|
let currentNodes = [];
|
|
const effect = createEffect(() => {
|
|
const res = c();
|
|
const next = (isArr(res) ? res : [res]).map(ensureNode);
|
|
currentNodes.forEach(n => { if (n._isRuntime) n.destroy(); else cleanupNode(n); });
|
|
let ref = anchor;
|
|
for (let i = next.length - 1; i >= 0; i--) {
|
|
const node = next[i];
|
|
if (node.parentNode !== ref.parentNode) ref.parentNode?.insertBefore(node, ref);
|
|
if (node._mounts) node._mounts.forEach(fn => fn());
|
|
ref = node;
|
|
}
|
|
currentNodes = next;
|
|
});
|
|
effect();
|
|
el._cleanups.add(() => dispose(effect));
|
|
onUnmount(() => dispose(effect));
|
|
} else {
|
|
const node = ensureNode(c);
|
|
el.appendChild(node);
|
|
if (node._mounts) node._mounts.forEach(fn => fn());
|
|
}
|
|
};
|
|
append(children);
|
|
return el;
|
|
};
|
|
|
|
// Render
|
|
export const Render = fn => {
|
|
const container = doc.createElement("div");
|
|
container.style.display = "contents";
|
|
const rootEffect = createEffect(() => {
|
|
const res = fn({ onCleanup: onUnmount });
|
|
(isArr(res) ? res : [res]).forEach(r => container.appendChild(ensureNode(r)));
|
|
});
|
|
rootEffect();
|
|
rootEffect._mounts?.forEach(fn => fn());
|
|
return { _isRuntime: true, container, destroy: () => { dispose(rootEffect); container.remove(); } };
|
|
};
|
|
|
|
// If
|
|
export const If = (cond, ifYes, ifNot = null, trans = null) => {
|
|
const anchor = doc.createTextNode("");
|
|
const root = Tag("div", { style: "display:contents" }, [anchor]);
|
|
let currentView = null, last = null;
|
|
Watch(() => {
|
|
const show = !!(isFunc(cond) ? cond() : cond);
|
|
if (show === last) return;
|
|
last = show;
|
|
const disposeView = () => { if (currentView) { currentView.destroy(); currentView = null; } };
|
|
if (currentView && !show && trans?.out) trans.out(currentView.container, disposeView);
|
|
else disposeView();
|
|
const content = show ? ifYes : ifNot;
|
|
if (content) {
|
|
currentView = Render(() => isFunc(content) ? content() : content);
|
|
root.insertBefore(currentView.container, anchor);
|
|
if (trans?.in) trans.in(currentView.container);
|
|
}
|
|
});
|
|
return root;
|
|
};
|
|
|
|
// For
|
|
export const For = (src, itemFn, keyFn) => {
|
|
const anchor = doc.createTextNode("");
|
|
const root = Tag("div", { style: "display:contents" }, [anchor]);
|
|
let cache = new Map();
|
|
Watch(() => {
|
|
const items = (isFunc(src) ? src() : src) || [];
|
|
const next = new Map(), order = [];
|
|
for (let i = 0; i < items.length; i++) {
|
|
const item = items[i];
|
|
const key = keyFn ? keyFn(item, i) : i;
|
|
let view = cache.get(key);
|
|
if (!view) view = Render(() => itemFn(item, i));
|
|
next.set(key, view);
|
|
order.push(key);
|
|
cache.delete(key);
|
|
}
|
|
cache.forEach(v => v.destroy());
|
|
cache = next;
|
|
let ref = anchor;
|
|
for (let i = order.length - 1; i >= 0; i--) {
|
|
const view = next.get(order[i]);
|
|
if (view.container.nextSibling !== ref) root.insertBefore(view.container, ref);
|
|
ref = view.container;
|
|
}
|
|
});
|
|
return root;
|
|
};
|
|
|
|
// Router
|
|
export const Router = routes => {
|
|
const getHash = () => window.location.hash.slice(1) || "/";
|
|
const path = $(getHash());
|
|
const handler = () => path(getHash());
|
|
window.addEventListener("hashchange", handler);
|
|
onUnmount(() => window.removeEventListener("hashchange", handler));
|
|
const outlet = Tag("div", { class: "router-outlet" });
|
|
let currentView = null;
|
|
Watch([path], () => {
|
|
const cur = path();
|
|
const route = routes.find(r => {
|
|
const p1 = r.path.split("/").filter(Boolean);
|
|
const p2 = cur.split("/").filter(Boolean);
|
|
return p1.length === p2.length && p1.every((p, i) => p[0] === ":" || p === p2[i]);
|
|
}) || routes.find(r => r.path === "*");
|
|
if (route) {
|
|
currentView?.destroy();
|
|
const params = {};
|
|
route.path.split("/").filter(Boolean).forEach((p, i) => { if (p[0] === ":") params[p.slice(1)] = cur.split("/").filter(Boolean)[i]; });
|
|
Router.params(params);
|
|
currentView = Render(() => isFunc(route.component) ? route.component(params) : route.component);
|
|
outlet.replaceChildren(currentView.container);
|
|
}
|
|
});
|
|
return outlet;
|
|
};
|
|
Router.params = $({});
|
|
Router.to = p => window.location.hash = p.replace(/^#?\/?/, "#/");
|
|
Router.back = () => window.history.back();
|
|
Router.path = () => window.location.hash.replace(/^#/, "") || "/";
|
|
|
|
// Mount
|
|
export const Mount = (comp, target) => {
|
|
const t = typeof target === "string" ? doc.querySelector(target) : target;
|
|
if (!t) return;
|
|
if (MOUNTED_NODES.has(t)) MOUNTED_NODES.get(t).destroy();
|
|
const inst = Render(isFunc(comp) ? comp : () => comp);
|
|
t.replaceChildren(inst.container);
|
|
MOUNTED_NODES.set(t, inst);
|
|
return inst;
|
|
};
|
|
|
|
const SigPro = Object.freeze({ $, $$, Watch, Tag, Render, If, For, Router, Mount, untrack, onMount, onUnmount, provide, inject });
|
|
|
|
export const initDX = () => {
|
|
if (typeof window === "undefined") return;
|
|
Object.assign(window, SigPro);
|
|
"div span p h1 h2 h3 h4 h5 h6 br hr section article aside nav main header footer ul ol li a em strong pre code form label input textarea select button img svg"
|
|
.split(" ").forEach(t => window[t[0].toUpperCase() + t.slice(1)] = (p, c) => SigPro.Tag(t, p, c));
|
|
}; |