feat(accessibility): add files table caption and summary

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

7 files changed, 187 insertions, 44 deletions

diff --git a/apps/files/src/components/FileEntry.vue b/apps/files/src/components/FileEntry.vue
index fcada72e4ce..4dfe3da0e4c 100644
--- a/apps/files/src/components/FileEntry.vue
+++ b/apps/files/src/components/FileEntry.vue
@@ -57,12 +57,9 @@
 		<!-- Actions -->
 		<td :class="`files-list__row-actions-${uniqueId}`" class="files-list__row-actions">
 			<!-- Inline actions -->
-			<template v-if="false" v-for="action in enabledInlineActions">
-				<CustomElementRender v-if="false"
-					:key="action.id"
-					:element="action.renderInline(source, currentView)" />
-				<NcButton v-else
-					:key="action.id"
+			<template v-for="action in enabledInlineActions">
+				<!-- TODO: implement CustomElementRender -->
+				<NcButton :key="action.id"
 					type="tertiary"
 					@click="onActionClick(action)">
 					<template #icon>
diff --git a/apps/files/src/components/FilesListFooter.vue b/apps/files/src/components/FilesListFooter.vue
new file mode 100644
index 00000000000..51907e03a9c
--- /dev/null
+++ b/apps/files/src/components/FilesListFooter.vue
@@ -0,0 +1,160 @@
+<!--
+  - @copyright Copyright (c) 2019 Gary Kim <gary@garykim.dev>
+  -
+  - @author Gary Kim <gary@garykim.dev>
+  -
+  - @license GNU AGPL version 3 or any later version
+  -
+  - This program is free software: you can redistribute it and/or modify
+  - it under the terms of the GNU Affero General Public License as
+  - published by the Free Software Foundation, either version 3 of the
+  - License, or (at your option) any later version.
+  -
+  - This program is distributed in the hope that it will be useful,
+  - but WITHOUT ANY WARRANTY; without even the implied warranty of
+  - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  - GNU Affero General Public License for more details.
+  -
+  - You should have received a copy of the GNU Affero General Public License
+  - along with this program. If not, see <http://www.gnu.org/licenses/>.
+  -
+  -->
+<template>
+	<tr>
+		<th class="files-list__row-checkbox">
+			<span class="hidden-visually">{{ t('files', 'Total rows summary') }}</span>
+		</th>
+
+		<!-- Link to file -->
+		<td class="files-list__row-name">
+			<!-- Icon or preview -->
+			<span class="files-list__row-icon" />
+
+			<!-- Summary -->
+			<span>{{ summary }}</span>
+		</td>
+
+		<!-- Actions -->
+		<td class="files-list__row-actions" />
+
+		<!-- Size -->
+		<td v-if="isSizeAvailable" class="files-list__column files-list__row-size">
+			<span>{{ totalSize }}</span>
+		</td>
+
+		<!-- Custom views columns -->
+		<th v-for="column in columns"
+			:key="column.id"
+			:class="classForColumn(column)">
+			<span>{{ column.summary?.(nodes, currentView) }}</span>
+		</th>
+	</tr>
+</template>
+
+<script lang="ts">
+import { formatFileSize } from '@nextcloud/files'
+import { translate } from '@nextcloud/l10n'
+import Vue from 'vue'
+
+import Navigation from '../services/Navigation'
+import { useFilesStore } from '../store/files'
+import { usePathsStore } from '../store/paths'
+
+export default Vue.extend({
+	name: 'FilesListFooter',
+
+	components: {
+	},
+
+	props: {
+		isSizeAvailable: {
+			type: Boolean,
+			default: false,
+		},
+		nodes: {
+			type: Array,
+			required: true,
+		},
+		summary: {
+			type: String,
+			default: '',
+		},
+	},
+
+	setup() {
+		const pathsStore = usePathsStore()
+		const filesStore = useFilesStore()
+		return {
+			filesStore,
+			pathsStore,
+		}
+	},
+
+	computed: {
+		currentView() {
+			return this.$navigation.active
+		},
+
+		dir() {
+			// Remove any trailing slash but leave root slash
+			return (this.$route?.query?.dir || '/').replace(/^(.+)\/$/, '$1')
+		},
+
+		currentFolder() {
+			if (!this.currentView?.id) {
+				return
+			}
+
+			if (this.dir === '/') {
+				return this.filesStore.getRoot(this.currentView.id)
+			}
+			const fileId = this.pathsStore.getPath(this.currentView.id, this.dir)
+			return this.filesStore.getNode(fileId)
+		},
+
+		columns() {
+			return this.currentView?.columns || []
+		},
+
+		totalSize() {
+			// If we have the size already, let's use it
+			if (this.currentFolder?.size) {
+				return formatFileSize(this.currentFolder.size, true)
+			}
+
+			// Otherwise let's compute it
+			return formatFileSize(this.nodes.reduce((total, node) => total + node.size || 0, 0), true)
+		},
+	},
+
+	methods: {
+		classForColumn(column) {
+			return {
+				'files-list__row-column-custom': true,
+				[`files-list__row-${this.currentView.id}-${column.id}`]: true,
+			}
+		},
+
+		t: translate,
+	},
+})
+</script>
+
+<style scoped lang="scss">
+@import '../mixins/fileslist-row.scss';
+
+// Scoped row
+tr {
+	padding-bottom: 300px;
+	border-top: 1px solid var(--color-border);
+	// Prevent hover effect on the whole row
+	background-color: transparent !important;
+}
+
+td {
+	user-select: none;
+	// Make sure the cell colors don't apply to column headers
+	color: var(--color-text-maxcontrast) !important;
+}
+
+</style>
diff --git a/apps/files/src/components/FilesListHeader.vue b/apps/files/src/components/FilesListHeader.vue
index b69a394a812..e39d7b4cade 100644
--- a/apps/files/src/components/FilesListHeader.vue
+++ b/apps/files/src/components/FilesListHeader.vue
@@ -60,9 +60,6 @@
 <script lang="ts">
 import { mapState } from 'pinia'
 import { translate } from '@nextcloud/l10n'
-import MenuDown from 'vue-material-design-icons/MenuDown.vue'
-import MenuUp from 'vue-material-design-icons/MenuUp.vue'
-import NcButton from '@nextcloud/vue/dist/Components/NcButton.js'
 import NcCheckboxRadioSwitch from '@nextcloud/vue/dist/Components/NcCheckboxRadioSwitch.js'
 import Vue from 'vue'
 
@@ -168,16 +165,6 @@ export default Vue.extend({
 			}
 		},
 
-		sortAriaLabel(column) {
-			const direction = this.isAscSorting
-				? this.t('files', 'ascending')
-				: this.t('files', 'descending')
-			return this.t('files', 'Sort list by {column} ({direction})', {
-				column,
-				direction,
-			})
-		},
-
 		onToggleAll(selected) {
 			if (selected) {
 				const selection = this.nodes.map(node => node.attributes.fileid.toString())
@@ -189,23 +176,6 @@ export default Vue.extend({
 			}
 		},
 
-		toggleSortBy(key) {
-			// If we're already sorting by this key, flip the direction
-			if (this.sortingMode === key) {
-				this.sortingStore.toggleSortingDirection(this.currentView.id)
-				return
-			}
-			// else sort ASC by this new key
-			this.sortingStore.setSortingBy(key, this.currentView.id)
-		},
-
-		toggleSortByCustomColumn(column) {
-			if (!column.sort) {
-				return
-			}
-			this.toggleSortBy(column.id)
-		},
-
 		t: translate,
 	},
 })
diff --git a/apps/files/src/components/FilesListVirtual.vue b/apps/files/src/components/FilesListVirtual.vue
index eafac678310..af83578d704 100644
--- a/apps/files/src/components/FilesListVirtual.vue
+++ b/apps/files/src/components/FilesListVirtual.vue
@@ -35,14 +35,20 @@
 			<FileEntry :is-size-available="isSizeAvailable" :source="item" />
 		</template>
 
-		<!-- <template #before>
-			<caption v-show="false" class="files-list__caption">
-				{{ summary }}
+		<template #before>
+			<!-- Accessibility description -->
+			<caption class="hidden-visually">
+				{{ currentView.caption || '' }}
+				{{ t('files', 'This list is not fully rendered for performances reasons. The files will be rendered as you navigate through the list.') }}
 			</caption>
-		</template> -->
 
-		<template #before>
-			<FilesListHeader :nodes="nodes" :is-size-available="isSizeAvailable" />
+			<!-- Thead-->
+			<FilesListHeader :is-size-available="isSizeAvailable" :nodes="nodes" />
+		</template>
+
+		<template #after>
+			<!-- Tfoot-->
+			<FilesListFooter :is-size-available="isSizeAvailable" :nodes="nodes" :summary="summary" />
 		</template>
 	</RecycleScroller>
 </template>
@@ -54,6 +60,7 @@ import Vue from 'vue'
 
 import FileEntry from './FileEntry.vue'
 import FilesListHeader from './FilesListHeader.vue'
+import FilesListFooter from './FilesListFooter.vue'
 
 export default Vue.extend({
 	name: 'FilesListVirtual',
@@ -62,9 +69,14 @@ export default Vue.extend({
 		RecycleScroller,
 		FileEntry,
 		FilesListHeader,
+		FilesListFooter,
 	},
 
 	props: {
+		currentView: {
+			type: Object,
+			required: true,
+		},
 		nodes: {
 			type: Array,
 			required: true,
diff --git a/apps/files/src/services/Navigation.ts b/apps/files/src/services/Navigation.ts
index 247243a8a74..a39b04b642a 100644
--- a/apps/files/src/services/Navigation.ts
+++ b/apps/files/src/services/Navigation.ts
@@ -41,7 +41,7 @@ export interface Column {
 	sort?: (nodeA: Node, nodeB: Node) => number
 	/** Custom summary of the column to display at the end of the list.
 	 Will not be displayed if  nothing is provided */
-	summary?: (node: Node[]) => string
+	summary?: (node: Node[], view: Navigation) => string
 }
 
 export interface Navigation {
diff --git a/apps/files/src/views/FilesList.vue b/apps/files/src/views/FilesList.vue
index 98e917b5191..70f814870f6 100644
--- a/apps/files/src/views/FilesList.vue
+++ b/apps/files/src/views/FilesList.vue
@@ -56,7 +56,10 @@
 		</NcEmptyContent>
 
 		<!-- File list -->
-		<FilesListVirtual v-else ref="filesListVirtual" :nodes="dirContents" />
+		<FilesListVirtual v-else
+			ref="filesListVirtual"
+			:current-view="currentView"
+			:nodes="dirContents" />
 	</NcAppContent>
 </template>
 
diff --git a/apps/files_trashbin/src/main.ts b/apps/files_trashbin/src/main.ts
index dfa88bded93..118f0ec72ee 100644
--- a/apps/files_trashbin/src/main.ts
+++ b/apps/files_trashbin/src/main.ts
@@ -35,6 +35,7 @@ const Navigation = window.OCP.Files.Navigation as NavigationService
 Navigation.register({
 	id: 'trashbin',
 	name: t('files_trashbin', 'Deleted files'),
+	caption: t('files_trashbin', 'List of files that have been deleted.'),
 
 	icon: DeleteSvg,
 	order: 50,