ionic-framework/packages/vue/src/components/IonNav.ts

import type { JSX, AnimationBuilder } from "@ionic/core/components";
import { defineCustomElement } from "@ionic/core/components/ion-nav.js";
import type { VNode, PropType } from "vue";
import { defineComponent, h, shallowRef } from "vue";

import { VueDelegate } from "../framework-delegate";

export const IonNav = /*@__PURE__*/ defineComponent<JSX.IonNav>(
  (props: JSX.IonNav) => {
    defineCustomElement();
    const views = shallowRef([]);

    /**
     * Allows us to create the component
     * within the Vue application context.
     */
    const addView = (component: VNode) =>
      (views.value = [...views.value, component]);
    const removeView = (component: VNode) =>
      (views.value = views.value.filter((cmp) => cmp !== component));

    const delegate = VueDelegate(addView, removeView);
    return () => {
      return h("ion-nav", { ...props, delegate }, views.value);
    };
  },
  {
    name: "IonNav",
    /**
     * The default values follow what is defined at
     * https://ionicframework.com/docs/api/nav#properties
     * otherwise the default values on the Web Component
     * may be overridden. For example, if the default animated value
     * is not `true` below, then Vue would default the prop to `false`
     * which would override the Web Component default of `true`.
     */
    props: {
      animated: {
        type: Boolean,
        default: true,
      },
      animation: {
        type: Function as unknown as PropType<AnimationBuilder>,
        default: undefined,
      },
      root: {
        type: [Function, Object, String],
        default: undefined,
      },
      rootParams: {
        type: Object,
        default: undefined,
      },
      swipeGesture: {
        type: Boolean,
        default: undefined,
      },
    },
  }
);