268 lines
8.7 KiB
JavaScript
268 lines
8.7 KiB
JavaScript
import { IgniteElement } from "../ignite-html/ignite-element.js";
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import { IgniteTemplate, slot, div, html } from "../ignite-html/ignite-template.js";
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class RouterLink extends IgniteElement {
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constructor() {
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super();
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this.pushStateListener = () => this.update();
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this.popStateListener = () => this.update();
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window.addEventListener("popstate", this.popStateListener);
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window.addEventListener("pushstate", this.pushStateListener);
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}
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get properties() {
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return {
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active: false,
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routes: [],
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target: null
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};
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}
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get styles() {
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return /*css*/`
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router-link {
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display: flex;
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flex-direction: row;
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align-items: center;
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justify-content: center;
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}
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`;
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}
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render() {
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return this.template
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.onClick((event) => this.onClick(event))
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.class(this.active, value => value ? "active" : null)
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.child(new slot(this).class(this.active, value => value ? "active" : null));
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}
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ready() {
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this.update();
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}
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update() {
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var routeMatches = false;
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//Check the target first.
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routeMatches = RouteMatcher.matches(this.target);
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//Check optional routes next.
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for (var i = 0; i < this.routes.length && !routeMatches; i++) {
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routeMatches = RouteMatcher.matches(this.routes[i]);
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}
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if (routeMatches && !this.active) {
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this.active = true;
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} else if (!routeMatches && this.active) {
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this.active = false;
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}
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}
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onClick(event) {
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event.preventDefault();
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window.history.pushState(this.target, this.target, this.target);
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window.dispatchEvent(new Event("pushstate"));
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}
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cleanup() {
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window.removeEventListener("popstate", this.popStateListener);
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window.removeEventListener("pushstate", this.pushStateListener);
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}
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}
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class RouterView extends IgniteElement {
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constructor() {
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super();
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this.pushStateListener = () => this.update();
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this.popStateListener = () => this.update();
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window.addEventListener("popstate", this.popStateListener);
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window.addEventListener("pushstate", this.pushStateListener);
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}
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get properties() {
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return {
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show: false,
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routes: [],
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strict: false
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};
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}
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render() {
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return this.template.child(
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new slot(this)
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).style("display", this.show, null, (value) => { return value ? null : "none"; });
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}
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ready() {
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this.update();
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}
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update() {
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var routeMatches = false;
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//Based on whether we are strict matching or not check if we have a match.
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if (!this.strict) {
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for (var i = 0; i < this.routes.length && !routeMatches; i++) {
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routeMatches = RouteMatcher.matches(this.routes[i]);
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}
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} else {
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routeMatches = true;
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for (var i = 0; i < this.routes.length && routeMatches; i++) {
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routeMatches = RouteMatcher.matches(this.routes[i]);
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}
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}
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//If we found a match show this router view if it's not already visible, otherwise hide it.
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if (routeMatches && !this.show) {
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this.show = true;
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} else if (!routeMatches && this.show) {
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this.show = false;
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}
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}
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cleanup() {
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window.removeEventListener("popstate", this.popStateListener);
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window.removeEventListener("pushstate", this.pushStateListener);
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}
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}
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class RouteMatcher {
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static matches(route) {
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//Get the path parts from the window
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var pathParts = window.location.pathname.split("/").splice(1);
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//Get the route parts
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var fromRoot = (route.trim().startsWith("/"));
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var routeParts = (fromRoot ? route.trim().split("/").splice(1) : route.trim().split("/"));
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//Check to see if we have a trailing route part, if so, remove it.
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if (pathParts.length > 0 && pathParts[pathParts.length - 1] == "") {
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pathParts.pop();
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}
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if (routeParts.length > 0 && routeParts[routeParts.length - 1] == "") {
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routeParts.pop();
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}
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//If path parts is 0 and route parts is 0 we have a match.
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if (pathParts.length == 0 && routeParts.length == 0) {
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return true;
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}
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//If path parts is 0, and the route part is ** then this is a match.
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else if (pathParts.length == 0 && routeParts.length == 1 && (routeParts[0] == "**" || routeParts[0] == "*")) {
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return true;
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}
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//If path parts is 0 and the route starts with ! and is a length of 1 then this is a match.
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else if (pathParts.length == 0 && routeParts.length == 1 && routeParts[0].startsWith("!")) {
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return true;
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}
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//If the path parts is 0 and the route is !*/** then this is a match
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else if (pathParts.length == 0 && routeParts.length == 2 && routeParts[0].startsWith("!") && routeParts[1] == "**") {
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return true;
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}
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//Check the route parts against the path parts.
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var max = Math.min(pathParts.length, routeParts.length);
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if (fromRoot) {
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for (var i = 0; i < max; i++) {
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if (routeParts[i].startsWith("!") && pathParts[i] == routeParts[i].substring(1)) {
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return false;
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} else if (routeParts[i] == "**") {
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return true;
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} else if (routeParts[i] != pathParts[i] && routeParts[i] != "*" && !routeParts[i].startsWith("!")) {
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return false;
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} else if (i + 2 == routeParts.length && i + 1 == pathParts.length && routeParts[i + 1] == "**") {
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return true;
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}
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}
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if (routeParts.length > pathParts.length) {
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return false;
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} else if (pathParts.length > routeParts.length && routeParts[routeParts.length - 1] != "**") {
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return false;
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} else {
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return true;
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}
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} else {
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for (var offset = 0; offset < pathParts.length; offset++) {
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for (var i = 0; i < max; i++) {
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if (i + offset >= pathParts.length) {
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return false;
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}
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if (routeParts[i].startsWith("!") && pathParts[i + offset] == routeParts[i].substring(1)) {
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break;
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} else if (routeParts[i] == "**") {
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return true;
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}
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else if (routeParts[i] != pathParts[i + offset] && routeParts[i] != "*" && !routeParts[i].startsWith("!")) {
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break;
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} else if (i + 1 == routeParts.length && offset + routeParts.length == pathParts.length) {
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return true;
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} else if (i + 2 == routeParts.length && offset + i + 1 == pathParts.length && routeParts[i + 1] == "**") {
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return true;
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}
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}
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}
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return false;
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}
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}
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}
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window.RouteMatcher = RouteMatcher;
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class RouterLinkTemplate extends IgniteTemplate {
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/**
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* Initializes a new router link template.
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* @param {String} target The target route when the link is clicked.
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* @param {String|String[]} routes Optional routes that can be used to control the active state of the link.
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* @param {...any} elements Elements to render within the link.
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*/
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constructor(target, routes, ...elements) {
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super("router-link", elements);
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if (!routes) {
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routes = [];
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}
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if (!Array.isArray(routes)) {
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routes = [routes];
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}
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this.property("target", target);
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this.property("routes", routes);
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}
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}
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class RouterViewTemplate extends IgniteTemplate {
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/**
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* Initializes a new router view.
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* @param {String|String[]} routes Single or multiple routes to trigger this view to render.
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* @param {any|any[]} elements Elements to render within the view.
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* @param {Boolean} strict If true all routes must match before this view becomes visible.
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*/
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constructor(routes, elements, strict = false) {
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super("router-view", Array.isArray(elements) ? elements : [elements]);
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if (!Array.isArray(routes)) {
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routes = [routes];
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}
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this.property("routes", routes);
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this.property("strict", strict);
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}
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}
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customElements.define("router-link", RouterLink);
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customElements.define("router-view", RouterView);
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export {
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RouterLinkTemplate as RouterLink,
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RouterViewTemplate as RouterView,
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RouteMatcher
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} |