1 files changed, 145 insertions, 0 deletions
diff --git a/apps/files/src/router/router.ts b/apps/files/src/router/router.ts
new file mode 100644
index 00000000000..fccb4a0a2b2
--- /dev/null
+++ b/apps/files/src/router/router.ts
@@ -0,0 +1,145 @@
+/**
+ * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import type { RawLocation, Route } from 'vue-router'
+
+import { generateUrl } from '@nextcloud/router'
+import { relative } from 'path'
+import queryString from 'query-string'
+import Router, { isNavigationFailure, NavigationFailureType } from 'vue-router'
+import Vue from 'vue'
+
+import { useFilesStore } from '../store/files.ts'
+import { usePathsStore } from '../store/paths.ts'
+import { defaultView } from '../utils/filesViews.ts'
+import logger from '../logger.ts'
+
+Vue.use(Router)
+
+// Prevent router from throwing errors when we're already on the page we're trying to go to
+const originalPush = Router.prototype.push
+Router.prototype.push = (function(this: Router, ...args: Parameters<typeof originalPush>) {
+	if (args.length > 1) {
+		return originalPush.call(this, ...args)
+	}
+	return originalPush.call<Router, [RawLocation], Promise<Route>>(this, args[0]).catch(ignoreDuplicateNavigation)
+}) as typeof originalPush
+
+const originalReplace = Router.prototype.replace
+Router.prototype.replace = (function(this: Router, ...args: Parameters<typeof originalReplace>) {
+	if (args.length > 1) {
+		return originalReplace.call(this, ...args)
+	}
+	return originalReplace.call<Router, [RawLocation], Promise<Route>>(this, args[0]).catch(ignoreDuplicateNavigation)
+}) as typeof originalReplace
+
+/**
+ * Ignore duplicated-navigation error but forward real exceptions
+ * @param error The thrown error
+ */
+function ignoreDuplicateNavigation(error: unknown): void {
+	if (isNavigationFailure(error, NavigationFailureType.duplicated)) {
+		logger.debug('Ignoring duplicated navigation from vue-router', { error })
+	} else {
+		throw error
+	}
+}
+
+const router = new Router({
+	mode: 'history',
+
+	// if index.php is in the url AND we got this far, then it's working:
+	// let's keep using index.php in the url
+	base: generateUrl('/apps/files'),
+	linkActiveClass: 'active',
+
+	routes: [
+		{
+			path: '/',
+			// Pretending we're using the default view
+			redirect: { name: 'filelist', params: { view: defaultView() } },
+		},
+		{
+			path: '/:view/:fileid(\\d+)?',
+			name: 'filelist',
+			props: true,
+		},
+	],
+
+	// Custom stringifyQuery to prevent encoding of slashes in the url
+	stringifyQuery(query) {
+		const result = queryString.stringify(query).replace(/%2F/gmi, '/')
+		return result ? ('?' + result) : ''
+	},
+})
+
+// Handle aborted navigation (NavigationGuards) gracefully
+router.onError((error) => {
+	if (isNavigationFailure(error, NavigationFailureType.aborted)) {
+		logger.debug('Navigation was aboorted', { error })
+	} else {
+		throw error
+	}
+})
+
+// If navigating back from a folder to a parent folder,
+// we need to keep the current dir fileid so it's highlighted
+// and scrolled into view.
+router.beforeResolve((to, from, next) => {
+	if (to.params?.parentIntercept) {
+		delete to.params.parentIntercept
+		return next()
+	}
+
+	if (to.params.view !== from.params.view) {
+		// skip if different views
+		return next()
+	}
+
+	const fromDir = (from.query?.dir || '/') as string
+	const toDir = (to.query?.dir || '/') as string
+
+	// We are going back to a parent directory
+	if (relative(fromDir, toDir) === '..') {
+		const { getNode } = useFilesStore()
+		const { getPath } = usePathsStore()
+
+		if (!from.params.view) {
+			logger.error('No current view id found, cannot navigate to parent directory', { fromDir, toDir })
+			return next()
+		}
+
+		// Get the previous parent's file id
+		const fromSource = getPath(from.params.view, fromDir)
+		if (!fromSource) {
+			logger.error('No source found for the parent directory', { fromDir, toDir })
+			return next()
+		}
+
+		const fileId = getNode(fromSource)?.fileid
+		if (!fileId) {
+			logger.error('No fileid found for the parent directory', { fromDir, toDir, fromSource })
+			return next()
+		}
+
+		logger.debug('Navigating back to parent directory', { fromDir, toDir, fileId })
+		return next({
+			name: 'filelist',
+			query: to.query,
+			params: {
+				...to.params,
+				fileid: String(fileId),
+				// Prevents the beforeEach from being called again
+				parentIntercept: 'true',
+			},
+			// Replace the current history entry
+			replace: true,
+		})
+	}
+
+	// else, we just continue
+	next()
+})
+
+export default router