69 lines
2.4 KiB
JavaScript
69 lines
2.4 KiB
JavaScript
"use strict"
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var Vnode = require("../render/vnode")
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var Promise = require("../promise/promise")
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var coreRouter = require("../router/router")
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module.exports = function($window, redrawService) {
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var routeService = coreRouter($window)
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var identity = function(v) {return v}
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var render, component, attrs, currentPath, lastUpdate
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var route = function(root, defaultRoute, routes) {
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if (root == null) throw new Error("Ensure the DOM element that was passed to `m.route` is not undefined")
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function run() {
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if (render != null) redrawService.render(root, render(Vnode(component, attrs.key, attrs)))
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}
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var redraw = function() {
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run()
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redraw = redrawService.redraw
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}
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redrawService.subscribe(root, run)
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var bail = function(path) {
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if (path !== defaultRoute) routeService.setPath(defaultRoute, null, {replace: true})
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else throw new Error("Could not resolve default route " + defaultRoute)
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}
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routeService.defineRoutes(routes, function(payload, params, path) {
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var update = lastUpdate = function(routeResolver, comp) {
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if (update !== lastUpdate) return
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component = comp != null && (typeof comp.view === "function" || typeof comp === "function")? comp : "div"
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attrs = params, currentPath = path, lastUpdate = null
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render = (routeResolver.render || identity).bind(routeResolver)
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redraw()
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}
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if (payload.view || typeof payload === "function") update({}, payload)
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else {
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if (payload.onmatch) {
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Promise.resolve(payload.onmatch(params, path)).then(function(resolved) {
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update(payload, resolved)
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}, bail)
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}
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else update(payload, "div")
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}
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}, bail)
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}
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route.set = function(path, data, options) {
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if (lastUpdate != null) options = {replace: true}
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lastUpdate = null
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routeService.setPath(path, data, options)
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}
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route.get = function() {return currentPath}
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route.prefix = function(prefix) {routeService.prefix = prefix}
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route.link = function(vnode) {
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vnode.dom.setAttribute("href", routeService.prefix + vnode.attrs.href)
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vnode.dom.onclick = function(e) {
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if (e.ctrlKey || e.metaKey || e.shiftKey || e.which === 2) return
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e.preventDefault()
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e.redraw = false
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var href = this.getAttribute("href")
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if (href.indexOf(routeService.prefix) === 0) href = href.slice(routeService.prefix.length)
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route.set(href, undefined, undefined)
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}
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}
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route.param = function(key) {
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if(typeof attrs !== "undefined" && typeof key !== "undefined") return attrs[key]
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return attrs
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}
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return route
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}
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