@expressive/react/dist/adapter.js

Use classes to define state in React!

"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/adapter.ts
var adapter_exports = {};
__export(adapter_exports, {
  Pragma: () => Pragma3
});
module.exports = __toCommonJS(adapter_exports);

// src/model.as.ts
var import_mvc2 = require("@expressive/mvc");

// src/context.ts
var import_mvc = __toESM(require("@expressive/mvc"));
var import_react = require("react");
var Lookup = (0, import_react.createContext)(new import_mvc.Context());
import_mvc.Context.use = (create) => {
  const ambient = (0, import_react.useContext)(Lookup);
  return create ? (0, import_react.useMemo)(() => ambient.push(), []) : ambient;
};
function createProvider(context, children, fallback, name) {
  if (context instanceof import_mvc.default)
    context = import_mvc.Context.get(context);
  const element = (0, import_react.createElement)(Lookup.Provider, {
    key: context.id,
    value: context,
    children
  });
  return fallback !== void 0 ? (0, import_react.createElement)(import_react.Suspense, { fallback, name }, element) : element;
}

// src/model.as.ts
import_mvc2.Model.as = function(render) {
  if (this === import_mvc2.Model)
    throw new Error("Cannot create component from base Model.");
  const Component = (props) => {
    const local = this.use((self) => {
      self.set(props);
      if (props.is)
        return props.is(self);
    });
    local.set(props);
    return createProvider(
      local,
      render(props, local),
      props.fallback || local.fallback,
      String(local)
    );
  };
  Component.Model = this;
  Component.displayName = this.name;
  return Component;
};

// src/model.use.ts
var import_mvc3 = require("@expressive/mvc");
var import_adapter = require("./adapter");
import_mvc3.Model.use = function(argument, repeat) {
  const context = import_mvc3.Context.use(true);
  const render = import_adapter.Pragma.useFactory((refresh) => {
    let ready;
    let local;
    const instance = new this(argument);
    context.include(instance);
    const unwatch = (0, import_mvc3.createEffect)(instance, (current) => {
      local = current;
      if (ready)
        refresh();
    });
    function didMount() {
      ready = true;
      return () => {
        unwatch();
        context.pop();
        instance.set(null);
      };
    }
    return (props) => {
      import_adapter.Pragma.useLifecycle(didMount);
      if (ready && repeat && props) {
        ready = false;
        if (typeof props == "function") {
          props.call(instance, instance);
          props = void 0;
        }
        const update = instance.set(props);
        if (update)
          update.then(() => ready = true);
        else
          ready = true;
      }
      return local;
    };
  });
  return render(argument);
};

// src/model.get.ts
var import_mvc4 = require("@expressive/mvc");
var import_adapter2 = require("./adapter");
import_mvc4.Model.get = function(argument) {
  const context = import_adapter2.Pragma.useContext();
  const render = import_adapter2.Pragma.useFactory((refresh) => {
    const instance = context.get(this);
    if (!instance)
      if (argument === false)
        return () => void 0;
      else
        throw new Error(`Could not find ${this} in context.`);
    let ready;
    let value;
    const unwatch = (0, import_mvc4.createEffect)(instance, (current) => {
      if (typeof argument === "function") {
        const next = argument.call(current, current, update);
        if (next === value)
          return;
        value = next;
      } else
        value = current;
      if (ready)
        refresh();
    }, argument === true);
    if (value instanceof Promise) {
      let error;
      unwatch();
      value.then((x) => value = x, (e) => error = e).finally(refresh);
      value = null;
      return () => {
        if (error)
          throw error;
        return value === void 0 ? null : value;
      };
    }
    if (value === null) {
      unwatch();
      return () => null;
    }
    ;
    function update(action) {
      if (typeof action == "function")
        action = action();
      refresh();
      if (action)
        return action.finally(refresh);
    }
    function didMount() {
      ready = true;
      return unwatch;
    }
    return () => {
      import_adapter2.Pragma.useLifecycle(didMount);
      return value === void 0 ? null : value;
    };
  });
  return render();
};

// src/adapter.ts
var Pragma3 = {};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  Pragma
});
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