iceshrimp/packages/client/src/components/global/RouterView.vue

<template>
	<KeepAlive :max="defaultStore.state.numberOfPageCache">
		<Suspense>
			<component
				:is="currentPageComponent"
				:key="key"
				v-bind="Object.fromEntries(currentPageProps)"
				tabindex="-1"
				v-focus
				style="outline: none"
			/>

			<template #fallback>
				<MkLoading />
			</template>
		</Suspense>
	</KeepAlive>
</template>

<script lang="ts" setup>
import {
	inject,
	nextTick,
	onBeforeUnmount,
	onMounted,
	onUnmounted,
	provide,
	watch,
} from "vue";
import { Resolved, Router } from "@/nirax";
import { defaultStore } from "@/store";

const props = defineProps<{
	router?: Router;
}>();

const router = props.router ?? inject("router");

if (router == null) {
	throw new Error("no router provided");
}

const currentDepth = inject("routerCurrentDepth", 0);
provide("routerCurrentDepth", currentDepth + 1);

function resolveNested(current: Resolved, d = 0): Resolved | null {
	if (d === currentDepth) {
		return current;
	} else {
		if (current.child) {
			return resolveNested(current.child, d + 1);
		} else {
			return null;
		}
	}
}

const current = resolveNested(router.current)!;
let currentPageComponent = $shallowRef(current.route.component);
let currentPageProps = $ref(current.props);
let key = $ref(
	current.route.path + JSON.stringify(Object.fromEntries(current.props))
);

function onChange({ resolved, key: newKey }) {
	const current = resolveNested(resolved);
	if (current == null) return;
	currentPageComponent = current.route.component;
	currentPageProps = current.props;
	key =
		current.route.path + JSON.stringify(Object.fromEntries(current.props));
}

router.addListener("change", onChange);

onBeforeUnmount(() => {
	router.removeListener("change", onChange);
});
</script>