@zag-js/solid/dist/index.mjs

The solid.js wrapper for zag

export { Key } from '@solid-primitives/keyed';
import { createScope, INIT_STATE, MachineStatus, mergeProps as mergeProps$1 } from '@zag-js/core';
import { isObject, isString, isNumber, compact, ensure, isFunction, warn, toArray, isEqual } from '@zag-js/utils';
import { createMemo, mergeProps, onMount, onCleanup, untrack, createSignal, createEffect } from 'solid-js';
import { createNormalizer } from '@zag-js/types';

// src/index.ts
function createBindable(props) {
  const initial = props().value ?? props().defaultValue;
  const eq = props().isEqual ?? Object.is;
  const [value, setValue] = createSignal(initial);
  const controlled = createMemo(() => props().value != void 0);
  const valueRef = { current: value() };
  const prevValue = { current: void 0 };
  createEffect(() => {
    const v = controlled() ? props().value : value();
    prevValue.current = v;
    valueRef.current = v;
  });
  const set = (v) => {
    const prev = prevValue.current;
    const next = isFunction(v) ? v(valueRef.current) : v;
    if (props().debug) {
      console.log(`[bindable > ${props().debug}] setValue`, { next, prev });
    }
    if (!controlled()) setValue(next);
    if (!eq(next, prev)) {
      props().onChange?.(next, prev);
    }
  };
  function get() {
    const v = controlled() ? props().value : value;
    return isFunction(v) ? v() : v;
  }
  return {
    initial,
    ref: valueRef,
    get,
    set,
    invoke(nextValue, prevValue2) {
      props().onChange?.(nextValue, prevValue2);
    },
    hash(value2) {
      return props().hash?.(value2) ?? String(value2);
    }
  };
}
createBindable.cleanup = (fn) => {
  onCleanup(() => fn());
};
createBindable.ref = (defaultValue) => {
  let value = defaultValue;
  return {
    get: () => value,
    set: (next) => {
      value = next;
    }
  };
};

// src/refs.ts
function createRefs(refs) {
  const ref = { current: refs };
  return {
    get(key) {
      return ref.current[key];
    },
    set(key, value) {
      ref.current[key] = value;
    }
  };
}
function access(v) {
  if (isFunction(v)) return v();
  return v;
}
var createTrack = (deps, effect) => {
  let prevDeps = [];
  let isFirstRun = true;
  createEffect(() => {
    if (isFirstRun) {
      prevDeps = deps.map((d) => access(d));
      isFirstRun = false;
      return;
    }
    let changed = false;
    for (let i = 0; i < deps.length; i++) {
      if (!isEqual(prevDeps[i], access(deps[i]))) {
        changed = true;
        break;
      }
    }
    if (changed) {
      prevDeps = deps.map((d) => access(d));
      effect();
    }
  });
};

// src/machine.ts
function useMachine(machine, userProps = {}) {
  const scope = createMemo(() => {
    const { id, ids, getRootNode } = access2(userProps);
    return createScope({ id, ids, getRootNode });
  });
  const debug = (...args) => {
    if (machine.debug) console.log(...args);
  };
  const props = createMemo(
    () => machine.props?.({
      props: compact(access2(userProps)),
      scope: scope()
    }) ?? access2(userProps)
  );
  const prop = createProp(props);
  const context = machine.context?.({
    prop,
    bindable: createBindable,
    get scope() {
      return scope();
    },
    flush,
    getContext() {
      return ctx;
    },
    getComputed() {
      return computed;
    },
    getRefs() {
      return refs;
    },
    getEvent() {
      return getEvent();
    }
  });
  const ctx = {
    get(key) {
      return context?.[key].get();
    },
    set(key, value) {
      context?.[key].set(value);
    },
    initial(key) {
      return context?.[key].initial;
    },
    hash(key) {
      const current = context?.[key].get();
      return context?.[key].hash(current);
    }
  };
  const effects = { current: /* @__PURE__ */ new Map() };
  const transitionRef = { current: null };
  const previousEventRef = { current: null };
  const eventRef = { current: { type: "" } };
  const getEvent = () => mergeProps(eventRef.current, {
    current() {
      return eventRef.current;
    },
    previous() {
      return previousEventRef.current;
    }
  });
  const getState = () => mergeProps(state, {
    matches(...values) {
      const current = state.get();
      return values.includes(current);
    },
    hasTag(tag) {
      const current = state.get();
      return !!machine.states[current]?.tags?.includes(tag);
    }
  });
  const refs = createRefs(machine.refs?.({ prop, context: ctx }) ?? {});
  const getParams = () => ({
    state: getState(),
    context: ctx,
    event: getEvent(),
    prop,
    send,
    action,
    guard,
    track: createTrack,
    refs,
    computed,
    flush,
    get scope() {
      return scope();
    },
    choose
  });
  const action = (keys) => {
    const strs = isFunction(keys) ? keys(getParams()) : keys;
    if (!strs) return;
    const fns = strs.map((s) => {
      const fn = machine.implementations?.actions?.[s];
      if (!fn) warn(`[zag-js] No implementation found for action "${JSON.stringify(s)}"`);
      return fn;
    });
    for (const fn of fns) {
      fn?.(getParams());
    }
  };
  const guard = (str) => {
    if (isFunction(str)) return str(getParams());
    return machine.implementations?.guards?.[str](getParams());
  };
  const effect = (keys) => {
    const strs = isFunction(keys) ? keys(getParams()) : keys;
    if (!strs) return;
    const fns = strs.map((s) => {
      const fn = machine.implementations?.effects?.[s];
      if (!fn) warn(`[zag-js] No implementation found for effect "${JSON.stringify(s)}"`);
      return fn;
    });
    const cleanups = [];
    for (const fn of fns) {
      const cleanup = fn?.(getParams());
      if (cleanup) cleanups.push(cleanup);
    }
    return () => cleanups.forEach((fn) => fn?.());
  };
  const choose = (transitions) => {
    return toArray(transitions).find((t) => {
      let result = !t.guard;
      if (isString(t.guard)) result = !!guard(t.guard);
      else if (isFunction(t.guard)) result = t.guard(getParams());
      return result;
    });
  };
  const computed = (key) => {
    ensure(machine.computed, () => `[zag-js] No computed object found on machine`);
    const fn = machine.computed[key];
    return fn({
      context: ctx,
      event: eventRef.current,
      prop,
      refs,
      scope: scope(),
      computed
    });
  };
  const state = createBindable(() => ({
    defaultValue: machine.initialState({ prop }),
    onChange(nextState, prevState) {
      if (prevState) {
        const exitEffects = effects.current.get(prevState);
        exitEffects?.();
        effects.current.delete(prevState);
      }
      if (prevState) {
        action(machine.states[prevState]?.exit);
      }
      action(transitionRef.current?.actions);
      const cleanup = effect(machine.states[nextState]?.effects);
      if (cleanup) effects.current.set(nextState, cleanup);
      if (prevState === INIT_STATE) {
        action(machine.entry);
        const cleanup2 = effect(machine.effects);
        if (cleanup2) effects.current.set(INIT_STATE, cleanup2);
      }
      action(machine.states[nextState]?.entry);
    }
  }));
  let status = MachineStatus.NotStarted;
  onMount(() => {
    const started = status === MachineStatus.Started;
    status = MachineStatus.Started;
    debug(started ? "rehydrating..." : "initializing...");
    state.invoke(state.initial, INIT_STATE);
  });
  onCleanup(() => {
    debug("unmounting...");
    status = MachineStatus.Stopped;
    const fns = effects.current;
    fns.forEach((fn) => fn?.());
    effects.current = /* @__PURE__ */ new Map();
    transitionRef.current = null;
    action(machine.exit);
  });
  const send = (event) => {
    queueMicrotask(() => {
      if (status !== MachineStatus.Started) return;
      previousEventRef.current = eventRef.current;
      eventRef.current = event;
      let currentState = untrack(() => state.get());
      const transitions = (
        // @ts-ignore
        machine.states[currentState].on?.[event.type] ?? // @ts-ignore
        machine.on?.[event.type]
      );
      const transition = choose(transitions);
      if (!transition) return;
      transitionRef.current = transition;
      const target = transition.target ?? currentState;
      debug("transition", event.type, transition.target || currentState, `(${transition.actions})`);
      const changed = target !== currentState;
      if (changed) {
        state.set(target);
      } else if (transition.reenter && !changed) {
        state.invoke(currentState, currentState);
      } else {
        action(transition.actions);
      }
    });
  };
  machine.watch?.(getParams());
  return {
    state: getState(),
    send,
    context: ctx,
    prop,
    get scope() {
      return scope();
    },
    refs,
    computed,
    event: getEvent(),
    getStatus: () => status
  };
}
function flush(fn) {
  fn();
}
function access2(value) {
  return isFunction(value) ? value() : value;
}
function createProp(value) {
  return function get(key) {
    return value()[key];
  };
}
function mergeProps2(...sources) {
  const target = {};
  for (let i = 0; i < sources.length; i++) {
    let source = sources[i];
    if (typeof source === "function") source = source();
    if (source) {
      const descriptors = Object.getOwnPropertyDescriptors(source);
      for (const key in descriptors) {
        if (key in target) continue;
        Object.defineProperty(target, key, {
          enumerable: true,
          get() {
            let e = {};
            if (key === "style" || key === "class" || key === "className" || key.startsWith("on")) {
              for (let i2 = 0; i2 < sources.length; i2++) {
                let s = sources[i2];
                if (typeof s === "function") s = s();
                e = mergeProps$1(e, { [key]: (s || {})[key] });
              }
              return e[key];
            }
            for (let i2 = sources.length - 1; i2 >= 0; i2--) {
              let v, s = sources[i2];
              if (typeof s === "function") s = s();
              v = (s || {})[key];
              if (v !== void 0) return v;
            }
          }
        });
      }
    }
  }
  return target;
}
var eventMap = {
  onFocus: "onFocusIn",
  onBlur: "onFocusOut",
  onDoubleClick: "onDblClick",
  onChange: "onInput",
  defaultChecked: "checked",
  defaultValue: "value",
  htmlFor: "for",
  className: "class"
};
var format = (v) => v.startsWith("--") ? v : hyphenateStyleName(v);
function toSolidProp(prop) {
  return prop in eventMap ? eventMap[prop] : prop;
}
var normalizeProps = createNormalizer((props) => {
  const normalized = {};
  for (const key in props) {
    const value = props[key];
    if (key === "readOnly" && value === false) {
      continue;
    }
    if (key === "style" && isObject(value)) {
      normalized["style"] = cssify(value);
      continue;
    }
    if (key === "children") {
      if (isString(value)) {
        normalized["textContent"] = value;
      }
      continue;
    }
    normalized[toSolidProp(key)] = value;
  }
  return normalized;
});
function cssify(style) {
  let css = {};
  for (const property in style) {
    const value = style[property];
    if (!isString(value) && !isNumber(value)) continue;
    css[format(property)] = value;
  }
  return css;
}
var uppercasePattern = /[A-Z]/g;
var msPattern = /^ms-/;
function toHyphenLower(match) {
  return "-" + match.toLowerCase();
}
var cache = {};
function hyphenateStyleName(name) {
  if (cache.hasOwnProperty(name)) return cache[name];
  var hName = name.replace(uppercasePattern, toHyphenLower);
  return cache[name] = msPattern.test(hName) ? "-" + hName : hName;
}

export { mergeProps2 as mergeProps, normalizeProps, useMachine };