233 lines
6.2 KiB
TypeScript
233 lines
6.2 KiB
TypeScript
/**
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* @copyright Copyright (c) 2022 John Molakvoæ <skjnldsv@protonmail.com>
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*
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* @author John Molakvoæ <skjnldsv@protonmail.com>
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*
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* @license AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/* eslint-disable */
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import type { Folder, Node } from '@nextcloud/files'
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import isSvg from 'is-svg'
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import logger from '../logger.js'
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export type ContentsWithRoot = {
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folder: Folder,
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contents: Node[]
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}
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export interface Column {
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/** Unique column ID */
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id: string
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/** Translated column title */
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title: string
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/**
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* Property key from Node main or additional attributes.
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* Will be used if no custom sort function is provided.
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* Sorting will be done by localCompare
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*/
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property: string
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/** Special function used to sort Nodes between them */
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sortFunction?: (nodeA: Node, nodeB: Node) => number;
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/** Custom summary of the column to display at the end of the list.
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Will not be displayed if nothing is provided */
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summary?: (node: Node[]) => string
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}
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export interface Navigation {
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/** Unique view ID */
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id: string
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/** Translated view name */
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name: string
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/**
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* Method return the content of the provided path
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* This ideally should be a cancellable promise.
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* promise.cancel(reason) will be called when the directory
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* change and the promise is not resolved yet.
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* You _must_ also return the current directory
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* information alongside with its content.
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*/
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getContents: (path: string) => Promise<ContentsWithRoot[]>
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/** The view icon as an inline svg */
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icon: string
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/** The view order */
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order: number
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/** This view column(s). Name and actions are
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by default always included */
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columns?: Column[]
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/** The empty view element to render your empty content into */
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emptyView?: (div: HTMLDivElement) => void
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/** The parent unique ID */
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parent?: string
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/** This view is sticky (sent at the bottom) */
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sticky?: boolean
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/** This view has children and is expanded or not */
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expanded?: boolean
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/**
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* This view is sticky a legacy view.
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* Here until all the views are migrated to Vue.
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* @deprecated It will be removed in a near future
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*/
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legacy?: boolean
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/**
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* An icon class.
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* @deprecated It will be removed in a near future
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*/
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iconClass?: string
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}
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export default class {
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private _views: Navigation[] = []
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private _currentView: Navigation | null = null
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constructor() {
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logger.debug('Navigation service initialized')
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}
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register(view: Navigation) {
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try {
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isValidNavigation(view)
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isUniqueNavigation(view, this._views)
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} catch (e) {
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if (e instanceof Error) {
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logger.error(e.message, { view })
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}
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throw e
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}
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if (view.legacy) {
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logger.warn('Legacy view detected, please migrate to Vue')
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}
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if (view.iconClass) {
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view.legacy = true
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}
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this._views.push(view)
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}
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get views(): Navigation[] {
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return this._views
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}
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setActive(view: Navigation | null) {
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this._currentView = view
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}
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get active(): Navigation | null {
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return this._currentView
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}
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}
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/**
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* Make sure the given view is unique
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* and not already registered.
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*/
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const isUniqueNavigation = function(view: Navigation, views: Navigation[]): boolean {
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if (views.find(search => search.id === view.id)) {
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throw new Error(`Navigation id ${view.id} is already registered`)
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}
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return true
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}
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/**
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* Typescript cannot validate an interface.
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* Please keep in sync with the Navigation interface requirements.
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*/
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const isValidNavigation = function(view: Navigation): boolean {
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if (!view.id || typeof view.id !== 'string') {
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throw new Error('Navigation id is required and must be a string')
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}
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if (!view.name || typeof view.name !== 'string') {
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throw new Error('Navigation name is required and must be a string')
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}
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/**
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* Legacy handle their content and icon differently
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* TODO: remove when support for legacy views is removed
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*/
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if (!view.legacy) {
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if (!view.getContents || typeof view.getContents !== 'function') {
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throw new Error('Navigation getContents is required and must be a function')
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}
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if (!view.icon || typeof view.icon !== 'string' || !isSvg(view.icon)) {
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throw new Error('Navigation icon is required and must be a valid svg string')
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}
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}
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if (!('order' in view) || typeof view.order !== 'number') {
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throw new Error('Navigation order is required and must be a number')
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}
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// Optional properties
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if (view.columns) {
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view.columns.forEach(isValidColumn)
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}
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if (view.emptyView && typeof view.emptyView !== 'function') {
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throw new Error('Navigation emptyView must be a function')
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}
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if (view.parent && typeof view.parent !== 'string') {
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throw new Error('Navigation parent must be a string')
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}
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if ('sticky' in view && typeof view.sticky !== 'boolean') {
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throw new Error('Navigation sticky must be a boolean')
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}
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if ('expanded' in view && typeof view.expanded !== 'boolean') {
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throw new Error('Navigation expanded must be a boolean')
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}
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return true
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}
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/**
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* Typescript cannot validate an interface.
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* Please keep in sync with the Column interface requirements.
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*/
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const isValidColumn = function(column: Column): boolean {
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if (!column.id || typeof column.id !== 'string') {
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throw new Error('Column id is required')
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}
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if (!column.title || typeof column.title !== 'string') {
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throw new Error('Column title is required')
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}
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if (!column.property || typeof column.property !== 'string') {
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throw new Error('Column property is required')
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}
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// Optional properties
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if (column.sortFunction && typeof column.sortFunction !== 'function') {
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throw new Error('Column sortFunction must be a function')
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}
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if (column.summary && typeof column.summary !== 'function') {
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throw new Error('Column summary must be a function')
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}
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return true
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}
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