89 lines
2.2 KiB
Svelte
89 lines
2.2 KiB
Svelte
<script lang="ts">
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import { getContext } from "svelte";
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import { useNavigate, useLocation } from "svelte-navigator";
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import { readable } from "svelte/store";
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import type { Address, VALUE_TYPE } from "@upnd/upend/types";
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import type { BrowseContext } from "../../util/browse";
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import api from "../../lib/api";
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const location = useLocation();
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const navigate = useNavigate();
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export let passthrough = false;
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export let title: string | undefined = undefined;
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export let text = false;
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export let to: {
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entity?: Address;
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attribute?: string;
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surfaceAttribute?: string;
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value?: { t: VALUE_TYPE; c: string };
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};
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const NOOP = "#";
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let targetHref = NOOP;
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$: {
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if (to.entity) {
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targetHref = to.entity;
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} else if (to.attribute) {
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api
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.componentsToAddress({ t: "Attribute", c: to.attribute })
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.then((address) => {
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targetHref = address;
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});
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} else if (to.surfaceAttribute) {
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targetHref = `surface:${to.surfaceAttribute}`;
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}
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}
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const context = getContext("browse") as BrowseContext | undefined;
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const index = context ? context.index : readable(0);
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const addresses = context ? context.addresses : readable([]);
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function onClick(ev: MouseEvent) {
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if ($location.pathname.startsWith("/browse")) {
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let newAddresses = $addresses.concat();
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// Shift to append to the end instead of replacing
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if (ev.shiftKey) {
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newAddresses = newAddresses.concat([targetHref]);
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} else {
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if ($addresses[$index] !== targetHref) {
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newAddresses = newAddresses.slice(0, $index + 1).concat([targetHref]);
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}
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}
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navigate("/browse/" + newAddresses.join(","));
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return true;
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} else {
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navigate(`/browse/${targetHref}`);
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}
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}
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</script>
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<a
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class="uplink"
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class:text
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class:passthrough
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class:unresolved={targetHref === NOOP}
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href="/#/browse/{targetHref}"
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on:click|preventDefault={onClick}
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{title}
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>
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<slot />
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</a>
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<style lang="scss">
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:global(.uplink) {
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text-decoration: none;
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max-width: 100%;
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}
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:global(.uplink.text) {
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text-decoration: underline;
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}
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:global(.uplink.passthrough) {
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display: contents;
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}
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:global(.uplink.unresolved) {
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pointer-events: none;
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}
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</style>
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