441 lines
14 KiB
JavaScript
441 lines
14 KiB
JavaScript
let activeEffect = null;
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let currentOwner = null;
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const effectQueue = new Set();
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let isFlushing = false;
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const MOUNTED_NODES = new WeakMap();
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const doc = document;
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const isArr = Array.isArray;
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const assign = Object.assign;
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const createEl = (t) => doc.createElement(t);
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const createText = (t) => doc.createTextNode(String(t ?? ""));
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const isFunc = (f) => typeof f === "function";
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const isObj = (o) => typeof o === "object" && o !== null;
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const runWithContext = (effect, callback) => {
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const previousEffect = activeEffect;
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activeEffect = effect;
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try { return callback(); }
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finally { activeEffect = previousEffect; }
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};
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const cleanupNode = (node) => {
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if (node._cleanups) {
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node._cleanups.forEach((dispose) => dispose());
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node._cleanups.clear();
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}
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node.childNodes?.forEach(cleanupNode);
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};
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const flushEffects = () => {
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if (isFlushing) return;
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isFlushing = true;
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while (effectQueue.size > 0) {
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const sortedEffects = Array.from(effectQueue).sort((a, b) => (a.depth || 0) - (b.depth || 0));
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effectQueue.clear();
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for (const effect of sortedEffects) {
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if (!effect._deleted) effect();
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}
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}
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isFlushing = false;
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};
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const trackSubscription = (subscribers) => {
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if (activeEffect && !activeEffect._deleted) {
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subscribers.add(activeEffect);
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activeEffect._deps.add(subscribers);
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}
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};
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const triggerUpdate = (subscribers) => {
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subscribers.forEach((effect) => {
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if (effect === activeEffect || effect._deleted) return;
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if (effect._isComputed) {
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effect.markDirty();
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if (effect._subs) triggerUpdate(effect._subs);
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} else {
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effectQueue.add(effect);
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}
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});
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if (!isFlushing) queueMicrotask(flushEffects);
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};
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const Render = (renderFn) => {
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const cleanups = new Set();
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const previousOwner = currentOwner;
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const container = createEl("div");
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container.style.display = "contents";
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currentOwner = { cleanups };
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const processResult = (result) => {
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if (!result) return;
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if (result._isRuntime) {
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cleanups.add(result.destroy);
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container.appendChild(result.container);
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} else if (isArr(result)) {
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result.forEach(processResult);
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} else {
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container.appendChild(result instanceof Node ? result : createText(result));
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}
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};
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try {
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processResult(renderFn({ onCleanup: (fn) => cleanups.add(fn) }));
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} finally { currentOwner = previousOwner; }
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return {
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_isRuntime: true,
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container,
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destroy: () => {
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cleanups.forEach((fn) => fn());
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cleanupNode(container);
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container.remove();
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},
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};
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};
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const $ = (initialValue, storageKey = null) => {
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const subscribers = new Set();
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if (isFunc(initialValue)) {
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let cachedValue, isDirty = true;
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const effect = () => {
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if (effect._deleted) return;
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effect._deps.forEach((dep) => dep.delete(effect));
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effect._deps.clear();
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runWithContext(effect, () => {
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const newValue = initialValue();
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if (!Object.is(cachedValue, newValue) || isDirty) {
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cachedValue = newValue;
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isDirty = false;
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triggerUpdate(subscribers);
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}
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});
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};
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assign(effect, {
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_deps: new Set(),
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_isComputed: true,
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_subs: subscribers,
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_deleted: false,
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markDirty: () => (isDirty = true),
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stop: () => {
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effect._deleted = true;
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effect._deps.forEach((dep) => dep.delete(effect));
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subscribers.clear();
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}
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});
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if (currentOwner) currentOwner.cleanups.add(effect.stop);
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return () => { if (isDirty) effect(); trackSubscription(subscribers); return cachedValue; };
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}
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let value = initialValue;
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if (storageKey) {
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try {
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const saved = localStorage.getItem(storageKey);
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if (saved !== null) value = JSON.parse(saved);
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} catch (e) { console.warn("SigPro Storage Lock", e); }
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}
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return (...args) => {
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if (args.length) {
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const nextValue = isFunc(args[0]) ? args[0](value) : args[0];
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if (!Object.is(value, nextValue)) {
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value = nextValue;
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if (storageKey) localStorage.setItem(storageKey, JSON.stringify(value));
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triggerUpdate(subscribers);
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}
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}
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trackSubscription(subscribers);
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return value;
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};
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};
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const $$ = (object, cache = new WeakMap()) => {
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if (!isObj(object)) return object;
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if (cache.has(object)) return cache.get(object);
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const keySubscribers = {};
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const proxy = new Proxy(object, {
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get(target, key) {
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if (activeEffect) trackSubscription(keySubscribers[key] ??= new Set());
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const value = Reflect.get(target, key);
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return isObj(value) ? $$(value, cache) : value;
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},
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set(target, key, value) {
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if (Object.is(target[key], value)) return true;
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const success = Reflect.set(target, key, value);
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if (keySubscribers[key]) triggerUpdate(keySubscribers[key]);
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return success;
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}
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});
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cache.set(object, proxy);
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return proxy;
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};
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const Watch = (target, callbackFn) => {
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const isExplicit = isArr(target);
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const callback = isExplicit ? callbackFn : target;
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if (!isFunc(callback)) return () => { };
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const owner = currentOwner;
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const runner = () => {
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if (runner._deleted) return;
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runner._deps.forEach((dep) => dep.delete(runner));
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runner._deps.clear();
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runner._cleanups.forEach((cleanup) => cleanup());
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runner._cleanups.clear();
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const previousOwner = currentOwner;
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runner.depth = activeEffect ? activeEffect.depth + 1 : 0;
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runWithContext(runner, () => {
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currentOwner = { cleanups: runner._cleanups };
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if (isExplicit) {
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runWithContext(null, callback);
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target.forEach((dep) => isFunc(dep) && dep());
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} else {
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callback();
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}
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currentOwner = previousOwner;
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});
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};
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assign(runner, {
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_deps: new Set(),
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_cleanups: new Set(),
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_deleted: false,
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stop: () => {
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if (runner._deleted) return;
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runner._deleted = true;
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effectQueue.delete(runner);
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runner._deps.forEach((dep) => dep.delete(runner));
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runner._cleanups.forEach((cleanup) => cleanup());
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if (owner) owner.cleanups.delete(runner.stop);
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}
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});
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if (owner) owner.cleanups.add(runner.stop);
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runner();
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return runner.stop;
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};
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const Tag = (tag, props = {}, children = []) => {
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if (props instanceof Node || isArr(props) || !isObj(props)) {
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children = props; props = {};
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}
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const isSVG = /^(svg|path|circle|rect|line|polyline|polygon|g|defs|text|tspan|use)$/.test(tag);
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const element = isSVG
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? doc.createElementNS("http://www.w3.org/2000/svg", tag)
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: createEl(tag);
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element._cleanups = new Set();
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element.onUnmount = (fn) => element._cleanups.add(fn);
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const booleanAttributes = ["disabled", "checked", "required", "readonly", "selected", "multiple", "autofocus"];
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const updateAttribute = (name, value) => {
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const sanitized = (name === 'src' || name === 'href') && String(value).toLowerCase().includes('javascript:') ? '#' : value;
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if (booleanAttributes.includes(name)) {
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element[name] = !!sanitized;
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sanitized ? element.setAttribute(name, "") : element.removeAttribute(name);
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} else {
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sanitized == null ? element.removeAttribute(name) : element.setAttribute(name, sanitized);
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}
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};
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for (let [key, value] of Object.entries(props)) {
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if (key === "ref") { (isFunc(value) ? value(element) : (value.current = element)); continue; }
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const isSignal = isFunc(value);
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if (key.startsWith("on")) {
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const eventName = key.slice(2).toLowerCase().split(".")[0];
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element.addEventListener(eventName, value);
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element._cleanups.add(() => element.removeEventListener(eventName, value));
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} else if (isSignal) {
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element._cleanups.add(Watch(() => {
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const currentVal = value();
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key === "class" ? (element.className = currentVal || "") : updateAttribute(key, currentVal);
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}));
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if (["INPUT", "TEXTAREA", "SELECT"].includes(element.tagName) && (key === "value" || key === "checked")) {
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const event = key === "checked" ? "change" : "input";
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const handler = (e) => value(e.target[key]);
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element.addEventListener(event, handler);
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element._cleanups.add(() => element.removeEventListener(event, handler));
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}
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} else {
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updateAttribute(key, value);
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}
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}
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const appendChildNode = (child) => {
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if (isArr(child)) return child.forEach(appendChildNode);
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if (isFunc(child)) {
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const marker = createText("");
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element.appendChild(marker);
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let currentNodes = [];
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element._cleanups.add(Watch(() => {
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const result = child();
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const nextNodes = (isArr(result) ? result : [result]).map((node) =>
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node?._isRuntime ? node.container : node instanceof Node ? node : createText(node)
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);
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currentNodes.forEach((node) => { cleanupNode(node); node.remove(); });
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nextNodes.forEach((node) => marker.parentNode?.insertBefore(node, marker));
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currentNodes = nextNodes;
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}));
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} else {
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element.appendChild(child instanceof Node ? child : createText(child));
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}
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};
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appendChildNode(children);
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return element;
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};
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const If = (condition, thenVal, otherwiseVal = null, transition = null) => {
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const marker = createText("");
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const container = Tag("div", { style: "display:contents" }, [marker]);
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let currentView = null, lastState = null;
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Watch(() => {
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const state = !!(isFunc(condition) ? condition() : condition);
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if (state === lastState) return;
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lastState = state;
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const dispose = () => { if (currentView) currentView.destroy(); currentView = null; };
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if (currentView && !state && transition?.out) {
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transition.out(currentView.container, dispose);
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} else {
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dispose();
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}
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const branch = state ? thenVal : otherwiseVal;
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if (branch) {
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currentView = Render(() => isFunc(branch) ? branch() : branch);
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container.insertBefore(currentView.container, marker);
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if (state && transition?.in) transition.in(currentView.container);
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}
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});
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return container;
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};
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const For = (source, renderFn, keyFn, tag = "div", props = { style: "display:contents" }) => {
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const marker = createText("");
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const container = Tag(tag, props, [marker]);
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let viewCache = new Map();
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Watch(() => {
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const items = (isFunc(source) ? source() : source) || [];
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const nextCache = new Map();
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const order = [];
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for (let i = 0; i < items.length; i++) {
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const item = items[i];
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const key = keyFn ? keyFn(item, i) : i;
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let view = viewCache.get(key);
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if (!view) {
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const result = renderFn(item, i);
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view = result instanceof Node
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? { container: result, destroy: () => { cleanupNode(result); result.remove(); } }
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: Render(() => result);
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}
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viewCache.delete(key);
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nextCache.set(key, view);
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order.push(key);
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}
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viewCache.forEach(v => v.destroy());
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let anchor = marker;
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for (let i = order.length - 1; i >= 0; i--) {
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const view = nextCache.get(order[i]);
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if (view.container.nextSibling !== anchor) {
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container.insertBefore(view.container, anchor);
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}
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anchor = view.container;
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}
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viewCache = nextCache;
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});
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return container;
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};
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const Router = (routes) => {
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const currentPath = $(window.location.hash.replace(/^#/, "") || "/");
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window.addEventListener("hashchange", () => currentPath(window.location.hash.replace(/^#/, "") || "/"));
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const outlet = Tag("div", { class: "router-transition" });
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let currentView = null;
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Watch([currentPath], async () => {
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const path = currentPath();
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const route = routes.find(r => {
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const routeParts = r.path.split("/").filter(Boolean);
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const pathParts = path.split("/").filter(Boolean);
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return routeParts.length === pathParts.length && routeParts.every((part, i) => part.startsWith(":") || part === pathParts[i]);
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}) || routes.find(r => r.path === "*");
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if (route) {
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let component = route.component;
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if (isFunc(component) && component.toString().includes('import')) {
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component = (await component()).default || (await component());
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}
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const params = {};
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route.path.split("/").filter(Boolean).forEach((part, i) => {
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if (part.startsWith(":")) params[part.slice(1)] = path.split("/").filter(Boolean)[i];
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});
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if (currentView) currentView.destroy();
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if (Router.params) Router.params(params);
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currentView = Render(() => {
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try {
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return isFunc(component) ? component(params) : component;
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} catch (e) {
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return Tag("div", { class: "p-4 text-error" }, "Error loading view");
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}
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});
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outlet.appendChild(currentView.container);
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}
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});
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return outlet;
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};
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Router.params = $({});
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Router.to = (path) => (window.location.hash = path.replace(/^#?\/?/, "#/"));
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Router.back = () => window.history.back();
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Router.path = () => window.location.hash.replace(/^#/, "") || "/";
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const Mount = (component, target) => {
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const targetEl = typeof target === "string" ? doc.querySelector(target) : target;
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if (!targetEl) return;
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if (MOUNTED_NODES.has(targetEl)) MOUNTED_NODES.get(targetEl).destroy();
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const instance = Render(isFunc(component) ? component : () => component);
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targetEl.replaceChildren(instance.container);
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MOUNTED_NODES.set(targetEl, instance);
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return instance;
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};
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const SigPro = { $, $$, Render, Watch, Tag, If, For, Router, Mount };
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if (typeof window !== "undefined") {
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assign(window, SigPro);
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const tags = `div span p h1 h2 h3 h4 h5 h6 br hr section article aside nav main header footer address ul ol li dl dt dd a em strong small i b u mark time sub sup pre code blockquote details summary dialog form label input textarea select button option fieldset legend table thead tbody tfoot tr th td caption img video audio canvas svg iframe picture source progress meter`.split(" ");
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tags.forEach((tag) => {
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const helper = tag[0].toUpperCase() + tag.slice(1);
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if (!(helper in window)) window[helper] = (p, c) => Tag(tag, p, c);
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});
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window.SigPro = Object.freeze(SigPro);
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}
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export { $, $$, Render, Watch, Tag, If, For, Router, Mount };
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export default SigPro;
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