feat: make possible select multiple files

Signed-off-by: Vitor Mattos <vitor@php.rio>

src/store/keyboard.js

@@ -0,0 +1,47 @@
+/**
+ * SPDX-FileCopyrightText: 2024 LibreCode coop and contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import { defineStore } from 'pinia'
+import { set } from 'vue'
+
+/**
+ * Observe various events and save the current
+ * special keys states. Useful for checking the
+ * current status of a key when executing a method.
+ * @param {...any} args properties
+ */
+export const useKeyboardStore = function(...args) {
+	const store = defineStore('keyboard', {
+		state: () => ({
+			altKey: false,
+			ctrlKey: false,
+			metaKey: false,
+			shiftKey: false,
+		}),
+
+		actions: {
+			onEvent(event) {
+				if (!event) {
+					event = window.event
+				}
+				set(this, 'altKey', !!event.altKey)
+				set(this, 'ctrlKey', !!event.ctrlKey)
+				set(this, 'metaKey', !!event.metaKey)
+				set(this, 'shiftKey', !!event.shiftKey)
+			},
+		},
+	})
+
+	const keyboardStore = store(...args)
+	// Make sure we only register the listeners once
+	if (!keyboardStore._initialized) {
+		window.addEventListener('keydown', keyboardStore.onEvent)
+		window.addEventListener('keyup', keyboardStore.onEvent)
+		window.addEventListener('mousemove', keyboardStore.onEvent)
+
+		keyboardStore._initialized = true
+	}
+
+	return keyboardStore
+}

src/store/selection.js

@@ -0,0 +1,57 @@
+/**
+ * SPDX-FileCopyrightText: 2024 LibreCode coop and contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import { defineStore } from 'pinia'
+import { set } from 'vue'
+
+import { subscribe } from '@nextcloud/event-bus'
+
+export const useSelectionStore = function(...args) {
+	const store = defineStore('selection', {
+		state: () => ({
+			selected: [],
+			lastSelection: [],
+			lastSelectedIndex: null,
+		}),
+
+		actions: {
+			/**
+			 * Set the selection of fileIds
+			 * @param {Array} selection Selected files
+			 */
+			set(selection = []) {
+				set(this, 'selected', [...new Set(selection)])
+			},
+
+			/**
+			 * Set the last selected index
+			 * @param {number | null} lastSelectedIndex Position of last selected file
+			 */
+			setLastIndex(lastSelectedIndex = null) {
+				// Update the last selection if we provided a new selection starting point
+				set(this, 'lastSelection', lastSelectedIndex ? this.selected : [])
+				set(this, 'lastSelectedIndex', lastSelectedIndex)
+			},
+
+			/**
+			 * Reset the selection
+			 */
+			reset() {
+				set(this, 'selected', [])
+				set(this, 'lastSelection', [])
+				set(this, 'lastSelectedIndex', null)
+			},
+		},
+	})
+
+	const selectionStore = store(...args)
+
+	// Make sure we only register the listeners once
+	if (!selectionStore._initialized) {
+		subscribe('libresign:filters:update', selectionStore.reset)
+		selectionStore._initialized = true
+	}
+
+	return selectionStore
+}

src/views/FilesList/FileEntry/FileEntry.vue

@@ -5,6 +5,10 @@
 <template>
 	<tr class="files-list__row"
 		@contextmenu="onRightClick">
+		<!-- Checkbox -->
+		<FileEntryCheckbox :is-loading="filesStore.loading"
+			:source="source" />
+
 		<td class="files-list__row-name"
 			@click="openDetailsIfAvailable">
 			<FileEntryPreview :source="source" />
@@ -40,6 +44,7 @@
 import NcDateTime from '@nextcloud/vue/dist/Components/NcDateTime.js'
 
 import FileEntryActions from './FileEntryActions.vue'
+import FileEntryCheckbox from './FileEntryCheckbox.vue'
 import FileEntryName from './FileEntryName.vue'
 import FileEntryPreview from './FileEntryPreview.vue'
 import FileEntryStatus from './FileEntryStatus.vue'
@@ -53,6 +58,7 @@ export default {
 	components: {
 		NcDateTime,
 		FileEntryActions,
+		FileEntryCheckbox,
 		FileEntryName,
 		FileEntryPreview,
 		FileEntryStatus,

src/views/FilesList/FileEntry/FileEntryCheckbox.vue

@@ -0,0 +1,113 @@
+<!--
+  - SPDX-FileCopyrightText: 2024 LibreCode coop and contributors
+  - SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+<template>
+	<td class="files-list__row-checkbox"
+		@keyup.esc.exact="resetSelection">
+		<NcLoadingIcon v-if="isLoading" :name="loadingLabel" />
+		<NcCheckboxRadioSwitch v-else
+			:aria-label="ariaLabel"
+			:checked="isSelected"
+			@update:checked="onSelectionChange" />
+	</td>
+</template>
+
+<script>
+import NcCheckboxRadioSwitch from '@nextcloud/vue/dist/Components/NcCheckboxRadioSwitch.js'
+import NcLoadingIcon from '@nextcloud/vue/dist/Components/NcLoadingIcon.js'
+
+import logger from '../../../logger.js'
+import { useFilesStore } from '../../../store/files.js'
+import { useKeyboardStore } from '../../../store/keyboard.js'
+import { useSelectionStore } from '../../../store/selection.js'
+
+export default {
+	name: 'FileEntryCheckbox',
+
+	components: {
+		NcCheckboxRadioSwitch,
+		NcLoadingIcon,
+	},
+
+	props: {
+		isLoading: {
+			type: Boolean,
+			default: false,
+		},
+		source: {
+			type: Object,
+			required: true,
+		},
+	},
+
+	setup() {
+		const filesStore = useFilesStore()
+		const keyboardStore = useKeyboardStore()
+		const selectionStore = useSelectionStore()
+		return {
+			filesStore,
+			keyboardStore,
+			selectionStore,
+		}
+	},
+
+	computed: {
+		selectedFiles() {
+			return this.selectionStore.selected
+		},
+		isSelected() {
+			return this.selectedFiles.includes(this.source.nodeId)
+		},
+		index() {
+			return this.filesStore.ordered.findIndex(nodeId => Number(nodeId) === this.source.nodeId)
+		},
+		ariaLabel() {
+			return t('libresign', 'Toggle selection for file "{displayName}"', { displayName: this.source.basename })
+		},
+		loadingLabel() {
+			return t('libresign', 'File is loading')
+		},
+	},
+
+	methods: {
+		onSelectionChange(selected) {
+			const newSelectedIndex = this.index
+			const lastSelectedIndex = this.selectionStore.lastSelectedIndex
+
+			// Get the last selected and select all files in between
+			if (this.keyboardStore?.shiftKey && lastSelectedIndex !== null) {
+				const isAlreadySelected = this.selectedFiles.includes(this.source.nodeId)
+
+				const start = Math.min(newSelectedIndex, lastSelectedIndex)
+				const end = Math.max(lastSelectedIndex, newSelectedIndex)
+
+				const lastSelection = this.selectionStore.lastSelection
+				const filesToSelect = this.filesStore.ordered
+					.slice(start, end + 1)
+
+				// If already selected, update the new selection _without_ the current file
+				const selection = [...new Set([...lastSelection, ...filesToSelect])]
+					.filter(nodeId => !isAlreadySelected || nodeId !== this.source.nodeId)
+
+				logger.debug('Shift key pressed, selecting all files in between', { start, end, filesToSelect, isAlreadySelected })
+				// Keep previous lastSelectedIndex to be use for further shift selections
+				this.selectionStore.set(selection)
+				return
+			}
+
+			const selection = selected
+				? [...this.selectedFiles, this.source.nodeId]
+				: this.selectedFiles.filter(nodeId => nodeId !== this.source.nodeId)
+
+			logger.debug('Updating selection', { selection })
+			this.selectionStore.set(selection)
+			this.selectionStore.setLastIndex(newSelectedIndex)
+		},
+
+		resetSelection() {
+			this.selectionStore.reset()
+		},
+	},
+}
+</script>

src/views/FilesList/FileEntry/FileEntryGrid.vue

@@ -13,6 +13,10 @@
 				:extension="'.pdf'" />
 		</td>
 
+		<!-- Checkbox -->
+		<FileEntryCheckbox :is-loading="filesStore.loading"
+			:source="source" />
+
 		<!-- Status -->
 		<td class="files-list__row-status"
 			@click="openDetailsIfAvailable">
@@ -40,6 +44,7 @@
 import NcDateTime from '@nextcloud/vue/dist/Components/NcDateTime.js'
 
 import FileEntryActions from './FileEntryActions.vue'
+import FileEntryCheckbox from './FileEntryCheckbox.vue'
 import FileEntryName from './FileEntryName.vue'
 import FileEntryPreview from './FileEntryPreview.vue'
 import FileEntryStatus from './FileEntryStatus.vue'
@@ -53,6 +58,7 @@ export default {
 	components: {
 		NcDateTime,
 		FileEntryActions,
+		FileEntryCheckbox,
 		FileEntryName,
 		FileEntryPreview,
 		FileEntryStatus,

src/views/FilesList/FilesListTableHeader.vue

@@ -4,6 +4,11 @@
 -->
 <template>
 	<tr class="files-list__row-head">
+		<th class="files-list__column files-list__row-checkbox"
+			@keyup.esc.exact="resetSelection">
+			<NcCheckboxRadioSwitch v-bind="selectAllBind" @update:checked="onToggleAll" />
+		</th>
+
 		<!-- Columns display -->
 
 		<!-- Link to file -->
@@ -33,12 +38,19 @@
 </template>
 
 <script>
+import NcCheckboxRadioSwitch from '@nextcloud/vue/dist/Components/NcCheckboxRadioSwitch.js'
+
 import FilesListTableHeaderButton from './FilesListTableHeaderButton.vue'
 
+import logger from '../../logger.js'
+import { useFilesStore } from '../../store/files.js'
+import { useSelectionStore } from '../../store/selection.js'
+
 export default {
 	name: 'FilesListTableHeader',
 
 	components: {
+		NcCheckboxRadioSwitch,
 		FilesListTableHeaderButton,
 	},
 
@@ -48,6 +60,14 @@ export default {
 			required: true,
 		},
 	},
+	setup() {
+		const filesStore = useFilesStore()
+		const selectionStore = useSelectionStore()
+		return {
+			filesStore,
+			selectionStore,
+		}
+	},
 	data() {
 		return {
 			isAscSorting: false,
@@ -66,6 +86,29 @@ export default {
 			],
 		}
 	},
+	computed: {
+		selectAllBind() {
+			const label = t('libresign', 'Toggle selection for all files')
+			return {
+				'aria-label': label,
+				checked: this.isAllSelected,
+				indeterminate: this.isSomeSelected,
+				title: label,
+			}
+		},
+		selectedNodes() {
+			return this.selectionStore.selected
+		},
+		isAllSelected() {
+			return this.selectedNodes.length === Object.keys(this.filesStore.files).length
+		},
+		isNoneSelected() {
+			return this.selectedNodes.length === 0
+		},
+		isSomeSelected() {
+			return !this.isAllSelected && !this.isNoneSelected
+		},
+	},
 	methods: {
 		ariaSortForMode(mode) {
 			if (this.sortingMode === mode) {
@@ -81,6 +124,20 @@ export default {
 				[`files-list__row-${column.id}`]: true,
 			}
 		},
+		onToggleAll(selected) {
+			if (selected) {
+				const selection = this.filesStore.ordered
+				logger.debug('Added all nodes to selection', { selection })
+				this.selectionStore.setLastIndex(null)
+				this.selectionStore.set(selection)
+			} else {
+				logger.debug('Cleared selection')
+				this.selectionStore.reset()
+			}
+		},
+		resetSelection() {
+			this.selectionStore.reset()
+		},
 	},
 }
 </script>