fix(systemtags): Sub folders should be opened in files

Currently this is simply broken and here are two ways:
1. Open subfolders in files view
2. Implement logic to save last request

1 is the way this is now implemented, basically copy-paste from the recent view.
2 is much more complicated because if we get `/2/foo/bar` as the path we need to know the source of `foo`, so we would need at least 2 requests or cache the previous directory. We do not do it like this for any view so lets just stick with 1 for now.

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

apps/systemtags/src/files_actions/openInFilesAction.spec.ts

@@ -0,0 +1,123 @@
+/**
+ * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import { action } from './openInFilesAction'
+import { expect } from '@jest/globals'
+import { File, Folder, Permission, View, DefaultType, FileAction } from '@nextcloud/files'
+
+const view = {
+	id: 'files',
+	name: 'Files',
+} as View
+
+const systemTagsView = {
+	id: 'tags',
+	name: 'tags',
+} as View
+
+const validNode = new Folder({
+	id: 1,
+	source: 'https://cloud.domain.com/remote.php/dav/files/admin/foo',
+	owner: 'admin',
+	mime: 'httpd/unix-directory',
+	root: '/files/admin',
+	permissions: Permission.ALL,
+})
+
+const validTag = new Folder({
+	id: 1,
+	source: 'https://cloud.domain.com/remote.php/dav/systemtags/2',
+	displayname: 'Foo',
+	owner: 'admin',
+	mime: 'httpd/unix-directory',
+	root: '/systemtags',
+	permissions: Permission.ALL,
+	attributes: {
+		'is-tag': true,
+	},
+})
+
+describe('Open in files action conditions tests', () => {
+	test('Default values', () => {
+		expect(action).toBeInstanceOf(FileAction)
+		expect(action.id).toBe('systemtags:open-in-files')
+		expect(action.displayName([], systemTagsView)).toBe('Open in Files')
+		expect(action.iconSvgInline([], systemTagsView)).toBe('')
+		expect(action.default).toBe(DefaultType.HIDDEN)
+		expect(action.order).toBe(-1000)
+		expect(action.inline).toBeUndefined()
+	})
+})
+
+describe('Open in files action enabled tests', () => {
+	test('Enabled with on valid view', () => {
+		expect(action.enabled).toBeDefined()
+		expect(action.enabled!([validNode], systemTagsView)).toBe(true)
+	})
+
+	test('Disabled on wrong view', () => {
+		expect(action.enabled).toBeDefined()
+		expect(action.enabled!([validNode], view)).toBe(false)
+	})
+
+	test('Disabled without nodes', () => {
+		expect(action.enabled).toBeDefined()
+		expect(action.enabled!([], view)).toBe(false)
+	})
+
+	test('Disabled with too many nodes', () => {
+		expect(action.enabled).toBeDefined()
+		expect(action.enabled!([validNode, validNode], view)).toBe(false)
+	})
+
+	test('Disabled with when node is a tag', () => {
+		expect(action.enabled).toBeDefined()
+		expect(action.enabled!([validTag], view)).toBe(false)
+	})
+})
+
+describe('Open in files action execute tests', () => {
+	test('Open in files', async () => {
+		const goToRouteMock = jest.fn()
+		// @ts-expect-error We only mock what needed, we do not need Files.Router.goTo or Files.Navigation
+		window.OCP = { Files: { Router: { goToRoute: goToRouteMock } } }
+
+		const file = new File({
+			id: 1,
+			source: 'https://cloud.domain.com/remote.php/dav/files/admin/Foo/foobar.txt',
+			owner: 'admin',
+			mime: 'text/plain',
+			root: '/files/admin',
+			permissions: Permission.ALL,
+		})
+
+		const exec = await action.exec(file, view, '/')
+
+		// Silent action
+		expect(exec).toBe(null)
+		expect(goToRouteMock).toBeCalledTimes(1)
+		expect(goToRouteMock).toBeCalledWith(null, { fileid: '1', view: 'files' }, { dir: '/Foo', openfile: 'true' })
+	})
+
+	test('Open in files with folder', async () => {
+		const goToRouteMock = jest.fn()
+		// @ts-expect-error We only mock what needed, we do not need Files.Router.goTo or Files.Navigation
+		window.OCP = { Files: { Router: { goToRoute: goToRouteMock } } }
+
+		const file = new Folder({
+			id: 1,
+			source: 'https://cloud.domain.com/remote.php/dav/files/admin/Foo/Bar',
+			owner: 'admin',
+			root: '/files/admin',
+			permissions: Permission.ALL,
+		})
+
+		const exec = await action.exec(file, view, '/')
+
+		// Silent action
+		expect(exec).toBe(null)
+		expect(goToRouteMock).toBeCalledTimes(1)
+		expect(goToRouteMock).toBeCalledWith(null, { fileid: '1', view: 'files' }, { dir: '/Foo/Bar', openfile: 'true' })
+	})
+})

apps/systemtags/src/files_actions/openInFilesAction.ts

@@ -0,0 +1,44 @@
+/**
+ * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import { translate as t } from '@nextcloud/l10n'
+import { type Node, FileType, FileAction, DefaultType } from '@nextcloud/files'
+
+export const action = new FileAction({
+	id: 'systemtags:open-in-files',
+	displayName: () => t('systemtags', 'Open in Files'),
+	iconSvgInline: () => '',
+
+	enabled(nodes, view) {
+		// Only for the system tags view
+		if (view.id !== 'tags') {
+			return false
+		}
+		// Only for single nodes
+		if (nodes.length !== 1) {
+			return false
+		}
+		// Do not open tags (keep the default action) and only open folders
+		return nodes[0].attributes['is-tag'] !== true
+			&& nodes[0].type === FileType.Folder
+	},
+
+	async exec(node: Node) {
+		let dir = node.dirname
+		if (node.type === FileType.Folder) {
+			dir = node.path
+		}
+
+		window.OCP.Files.Router.goToRoute(
+			null, // use default route
+			{ view: 'files', fileid: String(node.fileid) },
+			{ dir, openfile: 'true' },
+		)
+		return null
+	},
+
+	// Before openFolderAction
+	order: -1000,
+	default: DefaultType.HIDDEN,
+})

apps/systemtags/src/init.ts

@@ -4,9 +4,11 @@
  */
 import { registerDavProperty, registerFileAction } from '@nextcloud/files'
 import { action as inlineSystemTagsAction } from './files_actions/inlineSystemTagsAction.js'
+import { action as openInFilesAction } from './files_actions/openInFilesAction.js'
 import { registerSystemTagsView } from './files_views/systemtagsView.js'
 
 registerDavProperty('nc:system-tags')
 registerFileAction(inlineSystemTagsAction)
+registerFileAction(openInFilesAction)
 
 registerSystemTagsView()