@frontierjs/web/router.js

Web modules for FrontierJS

// ../../node_modules/svelte/internal/index.mjs
function noop() {
}
function run(fn) {
  return fn();
}
function run_all(fns) {
  fns.forEach(run);
}
function is_function(thing) {
  return typeof thing === "function";
}
function safe_not_equal(a, b) {
  return a != a ? b == b : a !== b || (a && typeof a === "object" || typeof a === "function");
}
function is_empty(obj) {
  return Object.keys(obj).length === 0;
}
function subscribe(store, ...callbacks) {
  if (store == null) {
    return noop;
  }
  const unsub = store.subscribe(...callbacks);
  return unsub.unsubscribe ? () => unsub.unsubscribe() : unsub;
}
var render_callbacks = [];
function flush_render_callbacks(fns) {
  const filtered = [];
  const targets = [];
  render_callbacks.forEach((c) => fns.indexOf(c) === -1 ? filtered.push(c) : targets.push(c));
  targets.forEach((c) => c());
  render_callbacks = filtered;
}
var globals = typeof window !== "undefined" ? window : typeof globalThis !== "undefined" ? globalThis : global;
var _boolean_attributes = [
  "allowfullscreen",
  "allowpaymentrequest",
  "async",
  "autofocus",
  "autoplay",
  "checked",
  "controls",
  "default",
  "defer",
  "disabled",
  "formnovalidate",
  "hidden",
  "inert",
  "ismap",
  "itemscope",
  "loop",
  "multiple",
  "muted",
  "nomodule",
  "novalidate",
  "open",
  "playsinline",
  "readonly",
  "required",
  "reversed",
  "selected"
];
var boolean_attributes = /* @__PURE__ */ new Set([..._boolean_attributes]);
function destroy_component(component, detaching) {
  const $$ = component.$$;
  if ($$.fragment !== null) {
    flush_render_callbacks($$.after_update);
    run_all($$.on_destroy);
    $$.fragment && $$.fragment.d(detaching);
    $$.on_destroy = $$.fragment = null;
    $$.ctx = [];
  }
}
var SvelteElement;
if (typeof HTMLElement === "function") {
  SvelteElement = class extends HTMLElement {
    constructor() {
      super();
      this.attachShadow({ mode: "open" });
    }
    connectedCallback() {
      const { on_mount } = this.$$;
      this.$$.on_disconnect = on_mount.map(run).filter(is_function);
      for (const key in this.$$.slotted) {
        this.appendChild(this.$$.slotted[key]);
      }
    }
    attributeChangedCallback(attr, _oldValue, newValue) {
      this[attr] = newValue;
    }
    disconnectedCallback() {
      run_all(this.$$.on_disconnect);
    }
    $destroy() {
      destroy_component(this, 1);
      this.$destroy = noop;
    }
    $on(type, callback) {
      if (!is_function(callback)) {
        return noop;
      }
      const callbacks = this.$$.callbacks[type] || (this.$$.callbacks[type] = []);
      callbacks.push(callback);
      return () => {
        const index = callbacks.indexOf(callback);
        if (index !== -1)
          callbacks.splice(index, 1);
      };
    }
    $set($$props) {
      if (this.$$set && !is_empty($$props)) {
        this.$$.skip_bound = true;
        this.$$set($$props);
        this.$$.skip_bound = false;
      }
    }
  };
}

// ../../node_modules/svelte/store/index.mjs
var subscriber_queue = [];
function readable(value, start) {
  return {
    subscribe: writable(value, start).subscribe
  };
}
function writable(value, start = noop) {
  let stop;
  const subscribers = /* @__PURE__ */ new Set();
  function set(new_value) {
    if (safe_not_equal(value, new_value)) {
      value = new_value;
      if (stop) {
        const run_queue = !subscriber_queue.length;
        for (const subscriber of subscribers) {
          subscriber[1]();
          subscriber_queue.push(subscriber, value);
        }
        if (run_queue) {
          for (let i = 0; i < subscriber_queue.length; i += 2) {
            subscriber_queue[i][0](subscriber_queue[i + 1]);
          }
          subscriber_queue.length = 0;
        }
      }
    }
  }
  function update(fn) {
    set(fn(value));
  }
  function subscribe2(run2, invalidate = noop) {
    const subscriber = [run2, invalidate];
    subscribers.add(subscriber);
    if (subscribers.size === 1) {
      stop = start(set) || noop;
    }
    run2(value);
    return () => {
      subscribers.delete(subscriber);
      if (subscribers.size === 0 && stop) {
        stop();
        stop = null;
      }
    };
  }
  return { set, update, subscribe: subscribe2 };
}
function derived(stores, fn, initial_value) {
  const single = !Array.isArray(stores);
  const stores_array = single ? [stores] : stores;
  const auto = fn.length < 2;
  return readable(initial_value, (set) => {
    let inited = false;
    const values = [];
    let pending = 0;
    let cleanup = noop;
    const sync = () => {
      if (pending) {
        return;
      }
      cleanup();
      const result = fn(single ? values[0] : values, set);
      if (auto) {
        set(result);
      } else {
        cleanup = is_function(result) ? result : noop;
      }
    };
    const unsubscribers = stores_array.map((store, i) => subscribe(store, (value) => {
      values[i] = value;
      pending &= ~(1 << i);
      if (inited) {
        sync();
      }
    }, () => {
      pending |= 1 << i;
    }));
    inited = true;
    sync();
    return function stop() {
      run_all(unsubscribers);
      cleanup();
    };
  });
}

// src/router.js
var createBack = ({ goto, route }) => derived([goto, route], ([$goto, $route]) => {
  if ($route.last.path) {
    return (options = {}) => {
      if (options.useHistory) {
        return window.history.back();
      }
      return $goto($route.last.path, $route.last.params);
    };
  }
  return () => window.history.back();
});
export {
  createBack
};