fix(files): Properly reset all file list filters on view change

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

6 files changed, 135 insertions, 69 deletions

diff --git a/apps/files/src/filters/FilenameFilter.ts b/apps/files/src/filters/FilenameFilter.ts
index 32df078a006..5019ca42d83 100644
--- a/apps/files/src/filters/FilenameFilter.ts
+++ b/apps/files/src/filters/FilenameFilter.ts
@@ -4,7 +4,6 @@
  */
 
 import type { IFileListFilterChip, INode } from '@nextcloud/files'
-import { subscribe } from '@nextcloud/event-bus'
 import { FileListFilter } from '@nextcloud/files'
 
 /**
@@ -16,7 +15,6 @@ export class FilenameFilter extends FileListFilter {
 
 	constructor() {
 		super('files:filename', 5)
-		subscribe('files:navigation:changed', () => this.updateQuery(''))
 	}
 
 	public filter(nodes: INode[]): INode[] {
@@ -27,6 +25,10 @@ export class FilenameFilter extends FileListFilter {
 		})
 	}
 
+	public reset(): void {
+		this.updateQuery('')
+	}
+
 	public updateQuery(query: string) {
 		query = (query || '').trim()
 
diff --git a/apps/files/src/filters/ModifiedFilter.ts b/apps/files/src/filters/ModifiedFilter.ts
index 63563f24510..e7d7c2f26a7 100644
--- a/apps/files/src/filters/ModifiedFilter.ts
+++ b/apps/files/src/filters/ModifiedFilter.ts
@@ -4,7 +4,6 @@
  */
 import type { IFileListFilterChip, INode } from '@nextcloud/files'
 
-import { subscribe } from '@nextcloud/event-bus'
 import { FileListFilter, registerFileListFilter } from '@nextcloud/files'
 import { t } from '@nextcloud/l10n'
 import Vue from 'vue'
@@ -58,7 +57,6 @@ class ModifiedFilter extends FileListFilter {
 
 	constructor() {
 		super('files:modified', 50)
-		subscribe('files:navigation:changed', () => this.setPreset())
 	}
 
 	public mount(el: HTMLElement) {
@@ -85,6 +83,10 @@ class ModifiedFilter extends FileListFilter {
 		return nodes.filter((node) => node.mtime === undefined || this.currentPreset!.filter(node.mtime.getTime()))
 	}
 
+	public reset(): void {
+		this.setPreset()
+	}
+
 	public setPreset(preset?: ITimePreset) {
 		this.currentPreset = preset
 		this.filterUpdated()
diff --git a/apps/files/src/filters/TypeFilter.ts b/apps/files/src/filters/TypeFilter.ts
index d49249789da..3955805aa5e 100644
--- a/apps/files/src/filters/TypeFilter.ts
+++ b/apps/files/src/filters/TypeFilter.ts
@@ -143,6 +143,10 @@ class TypeFilter extends FileListFilter {
 		})
 	}
 
+	public reset(): void {
+		this.setPresets()
+	}
+
 	public setPresets(presets?: ITypePreset[]) {
 		this.currentPresets = presets ?? []
 		this.currentInstance!.$props.presets = presets
diff --git a/apps/files/src/store/filters.ts b/apps/files/src/store/filters.ts
index ea8ff736b99..bc57e25a1f8 100644
--- a/apps/files/src/store/filters.ts
+++ b/apps/files/src/store/filters.ts
@@ -6,75 +6,130 @@ import type { FilterUpdateChipsEvent, IFileListFilter, IFileListFilterChip } fro
 import { subscribe } from '@nextcloud/event-bus'
 import { getFileListFilters } from '@nextcloud/files'
 import { defineStore } from 'pinia'
+import { computed, ref } from 'vue'
 import logger from '../logger'
 
-export const useFiltersStore = defineStore('filters', {
-	state: () => ({
-		chips: {} as Record<string, IFileListFilterChip[]>,
-		filters: [] as IFileListFilter[],
-		filtersChanged: false,
-	}),
-
-	getters: {
-		/**
-		 * Currently active filter chips
-		 * @param state Internal state
-		 */
-		activeChips(state): IFileListFilterChip[] {
-			return Object.values(state.chips).flat()
-		},
-
-		/**
-		 * Filters sorted by order
-		 * @param state Internal state
-		 */
-		sortedFilters(state): IFileListFilter[] {
-			return state.filters.sort((a, b) => a.order - b.order)
-		},
-
-		/**
-		 * All filters that provide a UI for visual controlling the filter state
-		 */
-		filtersWithUI(): Required<IFileListFilter>[] {
-			return this.sortedFilters.filter((filter) => 'mount' in filter) as Required<IFileListFilter>[]
-		},
-	},
-
-	actions: {
-		addFilter(filter: IFileListFilter) {
-			filter.addEventListener('update:chips', this.onFilterUpdateChips)
-			filter.addEventListener('update:filter', this.onFilterUpdate)
-			this.filters.push(filter)
-			logger.debug('New file list filter registered', { id: filter.id })
-		},
-
-		removeFilter(filterId: string) {
-			const index = this.filters.findIndex(({ id }) => id === filterId)
-			if (index > -1) {
-				const [filter] = this.filters.splice(index, 1)
-				filter.removeEventListener('update:chips', this.onFilterUpdateChips)
-				filter.removeEventListener('update:filter', this.onFilterUpdate)
-				logger.debug('Files list filter unregistered', { id: filterId })
-			}
-		},
+/**
+ * Check if the given value is an instance file list filter with mount function
+ * @param value The filter to check
+ */
+function isFileListFilterWithUi(value: IFileListFilter): value is Required<IFileListFilter> {
+	return 'mount' in value
+}
+
+export const useFiltersStore = defineStore('filters', () => {
+	const chips = ref<Record<string, IFileListFilterChip[]>>({})
+	const filters = ref<IFileListFilter[]>([])
+	const filtersChanged = ref(false)
+
+	/**
+	 * Currently active filter chips
+	 */
+	const activeChips = computed<IFileListFilterChip[]>(
+		() => Object.values(chips.value).flat(),
+	)
+
+	/**
+	 * Filters sorted by order
+	 */
+	const sortedFilters = computed<IFileListFilter[]>(
+		() => filters.value.sort((a, b) => a.order - b.order),
+	)
+
+	/**
+	 * All filters that provide a UI for visual controlling the filter state
+	 */
+	const filtersWithUI = computed<Required<IFileListFilter>[]>(
+		() => sortedFilters.value.filter(isFileListFilterWithUi)
+	)
+
+	/**
+	 * Register a new filter on the store.
+	 * This will subscribe the store to the filters events.
+	 *
+	 * @param filter The filter to add
+	 */
+	function addFilter(filter: IFileListFilter) {
+		filter.addEventListener('update:chips', onFilterUpdateChips)
+		filter.addEventListener('update:filter', onFilterUpdate)
 
-		onFilterUpdate() {
-			this.filtersChanged = true
-		},
+		filters.value.push(filter)
+		logger.debug('New file list filter registered', { id: filter.id })
+	}
 
-		onFilterUpdateChips(event: FilterUpdateChipsEvent) {
-			const id = (event.target as IFileListFilter).id
-			this.chips = { ...this.chips, [id]: [...event.detail] }
+	/**
+	 * Unregister a filter from the store.
+	 * This will remove the filter from the store and unsubscribe the store from the filer events.
+	 * @param filterId Id of the filter to remove
+	 */
+	function removeFilter(filterId: string) {
+		const index = filters.value.findIndex(({ id }) => id === filterId)
+		if (index > -1) {
+			const [filter] = filters.value.splice(index, 1)
+			filter.removeEventListener('update:chips', onFilterUpdateChips)
+			filter.removeEventListener('update:filter', onFilterUpdate)
+			logger.debug('Files list filter unregistered', { id: filterId })
+		}
+	}
 
-			logger.debug('File list filter chips updated', { filter: id, chips: event.detail })
-		},
+	/**
+	 * Event handler for filter update events
+	 * @private
+	 */
+	function onFilterUpdate() {
+		filtersChanged.value = true
+	}
 
-		init() {
-			subscribe('files:filter:added', this.addFilter)
-			subscribe('files:filter:removed', this.removeFilter)
-			for (const filter of getFileListFilters()) {
-				this.addFilter(filter)
+	/**
+	 * Event handler for filter chips updates
+	 * @param event The update event
+	 * @private
+	 */
+	function onFilterUpdateChips(event: FilterUpdateChipsEvent) {
+		const id = (event.target as IFileListFilter).id
+		chips.value = {
+			...chips.value,
+			[id]: [...event.detail],
+		}
+
+		logger.debug('File list filter chips updated', { filter: id, chips: event.detail })
+	}
+
+	/**
+	 * Event handler that resets all filters if the file list view was changed.
+	 * @private
+	 */
+	function onViewChanged() {
+		logger.debug('Reset all file list filters - view changed')
+
+		for (const filter of filters.value) {
+			if (filter.reset !== undefined) {
+				filter.reset()
 			}
-		},
-	},
+		}
+	}
+
+	// Initialize the store
+	subscribe('files:navigation:changed', onViewChanged)
+	subscribe('files:filter:added', addFilter)
+	subscribe('files:filter:removed', removeFilter)
+	for (const filter of getFileListFilters()) {
+		addFilter(filter)
+	}
+
+	return {
+		// state
+		chips,
+		filters,
+		filtersWithUI,
+		filtersChanged,
+
+		// getters / computed
+		activeChips,
+		sortedFilters,
+
+		// actions / methods
+		addFilter,
+		removeFilter,
+	}
 })
diff --git a/apps/files/src/views/FilesList.vue b/apps/files/src/views/FilesList.vue
index dab0ba3562d..6d333202914 100644
--- a/apps/files/src/views/FilesList.vue
+++ b/apps/files/src/views/FilesList.vue
@@ -494,7 +494,6 @@ export default defineComponent({
 	},
 
 	mounted() {
-		this.filtersStore.init()
 		this.fetchContent()
 
 		subscribe('files:node:deleted', this.onNodeDeleted)
diff --git a/apps/files_sharing/src/filters/AccountFilter.ts b/apps/files_sharing/src/filters/AccountFilter.ts
index 29e8088dc23..8da4d85d67c 100644
--- a/apps/files_sharing/src/filters/AccountFilter.ts
+++ b/apps/files_sharing/src/filters/AccountFilter.ts
@@ -66,6 +66,10 @@ class AccountFilter extends FileListFilter {
 		})
 	}
 
+	public reset(): void {
+		this.currentInstance?.resetFilter()
+	}
+
 	public setAccounts(accounts?: IAccountData[]) {
 		this.filterAccounts = accounts
 		let chips: IFileListFilterChip[] = []