Merge pull request #5358 from nextcloud/backport/3758/stable28

2023-12-07 18:04:57 +01:00
parent 0a77443c5c b5ff812e84
commit 365639e9dc
11 changed files with 646 additions and 21 deletions
--- a/src/App.vue
+++ b/src/App.vue
@@ -40,12 +40,14 @@

 			<router-view name="sidebar" :visible="!cardDetailsInModal || !$route.params.cardId" />
 		</div>
+		<KeyboardShortcuts />
 	</NcContent>
 </template>

 <script>
 import { mapState } from 'vuex'
 import AppNavigation from './components/navigation/AppNavigation.vue'
+import KeyboardShortcuts from './components/KeyboardShortcuts.vue'
 import { NcModal, NcContent, NcAppContent } from '@nextcloud/vue'
 import { BoardApi } from './services/BoardApi.js'
 import { emit, subscribe } from '@nextcloud/event-bus'
@@ -60,6 +62,7 @@ export default {
 		NcModal,
 		NcContent,
 		NcAppContent,
+		KeyboardShortcuts,
 	},
 	provide() {
 		return {
--- a/src/components/Controls.vue
+++ b/src/components/Controls.vue
@@ -22,6 +22,9 @@

 <template>
 	<div class="controls">
+		<NcModal v-if="showAddCardModal" class="card-selector" @close="clickHideAddCardModel">
+			<CreateNewCardCustomPicker show-created-notice @cancel="clickHideAddCardModel" />
+		</NcModal>
 		<div v-if="overviewName" class="board-title">
 			<div class="board-bullet icon-calendar-dark" />
 			<h2 dir="auto">
@@ -32,9 +35,6 @@
 					{{ t('deck', 'Add card') }}
 				</NcActionButton>
 			</NcActions>
-			<NcModal v-if="showAddCardModal" class="card-selector" @close="clickHideAddCardModel">
-				<CreateNewCardCustomPicker show-created-notice @cancel="clickHideAddCardModel" />
-			</NcModal>
 		</div>
 		<div v-else-if="board" class="board-title">
 			<div :style="{backgroundColor: '#' + board.color}" class="board-bullet" />
@@ -49,9 +49,14 @@
 			<SessionList v-if="isNotifyPushEnabled && presentUsers.length"
 				:sessions="presentUsers" />
 			<div v-if="searchQuery || true" class="deck-search">
-				<input type="search"
+				<input id="deck-search-input"
+					ref="search"
+					:tabindex="0"
+					type="search"
 					class="icon-search"
 					:value="searchQuery"
+					@focus="$store.dispatch('toggleShortcutLock', true)"
+					@blur="$store.dispatch('toggleShortcutLock', false)"
 					@input="$store.commit('setSearchQuery', $event.target.value)">
 			</div>
 			<div v-if="board && canManage && !showArchived && !board.archived"
@@ -70,7 +75,9 @@
 						type="text"
 						class="no-close"
 						:placeholder="t('deck', 'List name')"
-						required>
+						required
+						@focus="$store.dispatch('toggleShortcutLock', true)"
+						@blur="$store.dispatch('toggleShortcutLock', false)">
 					<input v-tooltip="t('deck', 'Add list')"
 						class="icon-confirm"
 						type="submit"
@@ -88,6 +95,7 @@
 						@hide="filterVisible=false">
 						<!-- We cannot use NcActions here are the popover trigger does not update on reactive icons -->
 						<NcButton slot="trigger"
+							ref="filterPopover"
 							:title="t('deck', 'Apply filter')"
 							class="filter-button"
 							:type="isFilterActive ? 'primary' : 'tertiary'">
@@ -233,6 +241,7 @@

 <script>
 import { mapState, mapGetters } from 'vuex'
+import { subscribe, unsubscribe } from '@nextcloud/event-bus'
 import { NcActions, NcActionButton, NcAvatar, NcButton, NcPopover, NcModal } from '@nextcloud/vue'
 import labelStyle from '../mixins/labelStyle.js'
 import ArchiveIcon from 'vue-material-design-icons/Archive.vue'
@@ -244,6 +253,7 @@ import ArrowExpandVerticalIcon from 'vue-material-design-icons/ArrowExpandVertic
 import SessionList from './SessionList.vue'
 import { isNotifyPushEnabled } from '../sessions.js'
 import CreateNewCardCustomPicker from '../views/CreateNewCardCustomPicker.vue'
+import { getCurrentUser } from '@nextcloud/auth'

 export default {
 	name: 'Controls',
@@ -327,7 +337,18 @@ export default {
 			}
 		},
 	},
+	beforeMount() {
+		subscribe('deck:board:show-new-card', this.clickShowAddCardModel)
+		subscribe('deck:board:toggle-filter-popover', this.triggerOpenFilters)
+		subscribe('deck:board:clear-filter', this.triggerClearFilter)
+		subscribe('deck:board:toggle-filter-by-me', this.triggerFilterByMe)
+
+	},
 	beforeDestroy() {
+		unsubscribe('deck:board:show-new-card', this.clickShowAddCardModel)
+		unsubscribe('deck:board:toggle-filter-popover', this.triggerOpenFilters)
+		unsubscribe('deck:board:clear-filter', this.triggerClearFilter)
+		unsubscribe('deck:board:toggle-filter-by-me', this.triggerFilterByMe)
 		this.setPageTitle('')
 	},
 	methods: {
@@ -406,6 +427,23 @@ export default {
 			}
 			window.document.title = newTitle
 		},
+		triggerOpenFilters() {
+			this.$refs.filterPopover.$el.click()
+		},
+		triggerOpenSearch() {
+			this.$refs.search.focus()
+		},
+		triggerClearFilter() {
+			this.clearFilter()
+		},
+		triggerFilterByMe() {
+			if (this.isFilterActive) {
+				this.clearFilter()
+			} else {
+				this.filter.users = [getCurrentUser().uid]
+				this.setFilter()
+			}
+		},
 	},
 }
 </script>
--- a/src/components/KeyboardShortcuts.vue
+++ b/src/components/KeyboardShortcuts.vue
@@ -0,0 +1,279 @@
+<template>
+	<!--  :style="{top:cardTop, left:cardLeft}" -->
+	<div v-if="card && selector"
+		ref="shortcutModal"
+		v-click-outside="close"
+		class="keyboard-shortcuts__modal"
+		tabindex="0"
+		@keydown.esc="close">
+		<CardItem :card="card" />
+		<DueDateSelector v-if="selector === 'due-date'" :card="card" :can-edit="true" />
+		<TagSelector v-if="selector === 'tag'" :card="card" :can-edit="true" />
+		<AssignmentSelector v-if="selector === 'assignment'" :card="card" :can-edit="true" />
+	</div>
+</template>
+<script>
+import DueDateSelector from './card/DueDateSelector.vue'
+import { emit, subscribe, unsubscribe } from '@nextcloud/event-bus'
+import { mapState } from 'vuex'
+import TagSelector from './card/TagSelector.vue'
+import AssignmentSelector from './card/AssignmentSelector.vue'
+import CardItem from './cards/CardItem.vue'
+
+export default {
+	name: 'KeyboardShortcuts',
+	components: {
+		DueDateSelector,
+		TagSelector,
+		AssignmentSelector,
+		CardItem,
+	},
+	data() {
+		return {
+			card: null,
+			cardTop: null,
+			cardLeft: null,
+			selector: null,
+		}
+	},
+	computed: {
+		...mapState({
+			board: state => state.currentBoard,
+		}),
+	},
+	created() {
+		document.addEventListener('keydown', this.onKeydown)
+		subscribe('deck:card:show-assignment-selector', this.handleShowAssignemnt)
+		subscribe('deck:card:show-due-date-selector', this.handleShowDueDate)
+		subscribe('deck:card:show-label-selector', this.handleShowLabel)
+	},
+	destroyed() {
+		document.removeEventListener('keydown', this.onKeydown)
+		unsubscribe('deck:card:show-assignment-selector', this.handleShowAssignemnt)
+		unsubscribe('deck:card:show-due-date-selector', this.handleShowDueDate)
+		unsubscribe('deck:card:show-label-selector', this.handleShowLabel)
+	},
+	methods: {
+		onKeydown(key) {
+			if (OCP.Accessibility.disableKeyboardShortcuts()) {
+				return
+			}
+
+			if (['INPUT', 'TEXTAREA', 'SELECT', 'BUTTON'].includes(key.target.tagName) || key.target.isContentEditable) {
+				return
+			}
+
+			// Global shortcuts (not board specific)
+			if ((key.metaKey || key.ctrlKey) && key.code === 'KeyF') {
+				const searchInput = document.getElementById('deck-search-input')
+				if (searchInput === document.activeElement) {
+					return false
+				}
+
+				document.getElementById('deck-search-input').focus()
+				key.preventDefault()
+				return true
+			}
+			if (key.code === 'Minus') {
+				emit('deck:global:toggle-help-dialog')
+				return
+			}
+
+			if (this.$store.state.shortcutLock || key.shiftKey || key.ctrlKey || key.altKey || key.metaKey) {
+				return
+			}
+
+			if (this.$route.name === 'card' && key.code === 'Escape') {
+				this.$router.push({ name: 'board' })
+				return
+			}
+
+			// Board specific shortcuts
+			if (!this.board) {
+				return
+			}
+
+			switch (key.code) {
+			case 'KeyN':
+				emit('deck:board:show-new-card', this.board.id)
+				break
+			case 'KeyF':
+				emit('deck:board:toggle-filter-popover', this.board.id)
+				break
+			case 'KeyX':
+				emit('deck:board:clear-filter', this.board.id)
+				break
+			case 'KeyQ':
+				emit('deck:board:toggle-filter-by-me', this.board.id)
+				break
+			case 'ArrowDown':
+				this.keyboardFocusDown()
+				break
+			case 'ArrowUp':
+				this.keyboardFocusUp()
+				break
+			case 'ArrowLeft':
+				this.keyboardFocusLeft()
+				break
+			case 'ArrowRight':
+				this.keyboardFocusRight()
+				break
+			default:
+				return
+			}
+
+			key.preventDefault()
+		},
+		keyboardFocusDown() {
+			const activeCard = document.activeElement.closest('.card')
+			const cards = document.querySelectorAll('.card')
+			const stacks = document.querySelectorAll('.stack')
+			const index = Array.from(cards).findIndex(card => card === activeCard)
+			if (index === -1) {
+				cards[0]?.focus()
+				return
+			}
+
+			const currentStack = Array.from(stacks).find(stack => stack.contains(document.activeElement))
+			const currentStackCards = currentStack.querySelectorAll('.card')
+			const currentStackIndex = Array.from(currentStackCards).findIndex(card => card === document.activeElement)
+
+			if (currentStackIndex === currentStackCards.length - 1) {
+				return
+			}
+
+			cards[index + 1]?.focus()
+			cards[index + 1]?.scrollIntoView({ behavior: 'smooth', block: 'nearest' })
+		},
+
+		keyboardFocusUp() {
+			const activeCard = document.activeElement.closest('.card')
+			const cards = document.querySelectorAll('.card')
+			const stacks = document.querySelectorAll('.stack')
+			const index = Array.from(cards).findIndex(card => card === activeCard)
+			if (index === -1) {
+				cards[0]?.focus()
+				return
+			}
+
+			const currentStack = Array.from(stacks).find(stack => stack.contains(document.activeElement))
+			const currentStackCards = currentStack.querySelectorAll('.card')
+			const currentStackIndex = Array.from(currentStackCards).findIndex(card => card === document.activeElement)
+
+			if (currentStackIndex === 0) {
+				return
+			}
+
+			cards[index - 1]?.focus()
+			cards[index - 1]?.scrollIntoView({ behavior: 'smooth', block: 'nearest' })
+		},
+		keyboardFocusLeft() {
+			const activeCard = document.activeElement.closest('.card')
+			const stacks = document.querySelectorAll('.stack')
+			const currentStackIndex = Array.from(stacks).findIndex(stack => stack.contains(activeCard))
+
+			if (!currentStackIndex === 0) {
+				return
+			}
+
+			const nextStack = stacks[currentStackIndex - 1] ?? stacks[0]
+
+			const currentCardTopOffset = document.activeElement.getBoundingClientRect().top
+
+			// iterate over all next stack cards and remember the one with the smallest offset
+			const nextStackCards = nextStack.querySelectorAll('.card')
+			let nextCard = null
+			for (const card of nextStackCards) {
+				const cardTopOffset = card.getBoundingClientRect().bottom
+				if (cardTopOffset < currentCardTopOffset) {
+					continue
+				}
+
+				nextCard = card
+				break
+			}
+
+			if (!nextCard) {
+				nextCard = nextStackCards[nextStackCards.length - 1]
+			}
+
+			nextCard?.focus()
+			nextCard?.scrollIntoView({ behavior: 'smooth', block: 'nearest' })
+		},
+		keyboardFocusRight() {
+			const activeCard = document.activeElement.closest('.card')
+			const stacks = document.querySelectorAll('.stack')
+			const currentStackIndex = Array.from(stacks).findIndex(stack => stack.contains(activeCard))
+
+			if (currentStackIndex === stacks.length - 1) {
+				return
+			}
+
+			const nextStack = stacks[currentStackIndex + 1]
+
+			const currentCardTopOffset = document.activeElement.getBoundingClientRect().top
+
+			// iterate over all next stack cards and remember the one with the smallest offset
+			const nextStackCards = nextStack.querySelectorAll('.card')
+			let nextCard = null
+			for (const card of nextStackCards) {
+				const cardTopOffset = card.getBoundingClientRect().bottom
+				if (cardTopOffset < currentCardTopOffset) {
+					continue
+				}
+
+				nextCard = card
+				break
+			}
+
+			if (!nextCard) {
+				nextCard = nextStackCards[nextStackCards.length - 1]
+			}
+
+			nextCard?.focus()
+			nextCard?.scrollIntoView({ behavior: 'smooth', block: 'nearest' })
+		},
+		handleShowDueDate({ card, element }) {
+			// this.cardTop = element.getBoundingClientRect().top + 'px'
+			// this.cardLeft = element.getBoundingClientRect().left + 'px'
+			this.card = card
+			this.selector = 'due-date'
+			this.$refs.shortcutModal?.focus()
+		},
+		handleShowAssignemnt({ card, element }) {
+			// this.cardTop = element.getBoundingClientRect().top + 'px'
+			// this.cardLeft = element.getBoundingClientRect().left + 'px'
+			this.card = card
+			this.selector = 'assignment'
+			this.$refs.shortcutModal?.focus()
+		},
+		handleShowLabel({ card, element }) {
+			// this.cardTop = element.getBoundingClientRect().top + 'px'
+			// this.cardLeft = element.getBoundingClientRect().left + 'px'
+			this.card = card
+			this.selector = 'tag'
+			this.$refs.shortcutModal?.focus()
+		},
+		close() {
+			this.card = null
+			this.selector = null
+		},
+	},
+}
+</script>
+<style lang="scss" scoped>
+.keyboard-shortcuts__modal {
+	position: fixed;
+	z-index: 9999;
+	box-shadow: 0 0 100px 30px rgba(0, 0, 0, 0.5);
+	max-width: 500px;
+	bottom: 32px;
+	left: 50%;
+	transform: translateX(-50%);
+	background-color: var(--color-background-dark);
+	border-radius: var(--border-radius-rounded);
+	padding: 24px 32px;
+	width: 100%;
+	border: 2px solid var(--color-border-maxcontrast);
+}
+</style>
--- a/src/components/board/Board.vue
+++ b/src/components/board/Board.vue
@@ -21,7 +21,7 @@
  -->

 <template>
-	<div class="board-wrapper">
+	<div class="board-wrapper" :tabindex="-1">
 		<Controls :board="board" />

 		<transition name="fade" mode="out-in">
@@ -86,7 +86,6 @@
 </template>

 <script>
-
 import { Container, Draggable } from 'vue-smooth-dnd'
 import { mapState, mapGetters } from 'vuex'
 import Controls from '../Controls.vue'
--- a/src/components/cards/CardItem.vue
+++ b/src/components/cards/CardItem.vue
@@ -26,10 +26,14 @@

 <template>
 	<AttachmentDragAndDrop v-if="card" :card-id="card.id" class="drop-upload--card">
-		<div :class="{'compact': compactMode, 'current-card': currentCard, 'has-labels': card.labels && card.labels.length > 0, 'card__editable': canEdit, 'card__archived': card.archived }"
+		<div :ref="`card${card.id}`"
+			:class="{'compact': compactMode, 'current-card': currentCard, 'has-labels': card.labels && card.labels.length > 0, 'card__editable': canEdit, 'card__archived': card.archived }"
 			tag="div"
+			:tabindex="0"
 			class="card"
-			@click="openCard">
+			@click="openCard"
+			@keyup.self="handleCardKeyboardShortcut"
+			@mouseenter="focus(card.id)">
 			<div v-if="standalone" class="card-related">
 				<div :style="{backgroundColor: '#' + board.color}" class="board-bullet" dir="auto" />
 				{{ board.title }} » {{ stack.title }}
@@ -47,7 +51,8 @@
 						tabindex="0"
 						contenteditable="true"
 						role="textbox"
-						@blur="blurTitle"
+						@focus="onTitleFocus"
+						@blur="onTitleBlur"
 						@click.stop
 						@keyup.esc="cancelEdit"
 						@keyup.stop>{{ card.title }}</span>
@@ -92,6 +97,7 @@ import AttachmentDragAndDrop from '../AttachmentDragAndDrop.vue'
 import CardMenu from './CardMenu.vue'
 import CardCover from './CardCover.vue'
 import DueDate from './badges/DueDate.vue'
+import { getCurrentUser } from '@nextcloud/auth'

 export default {
 	name: 'CardItem',
@@ -198,6 +204,10 @@ export default {
 		},
 	},
 	methods: {
+		focus(card) {
+			card = this.$refs[`card${card}`]
+			card.focus()
+		},
 		openCard() {
 			if (this.dragging) {
 			  return
@@ -205,7 +215,7 @@ export default {
 			const boardId = this.card && this.card.boardId ? this.card.boardId : this.$route.params.id
 			this.$router.push({ name: 'card', params: { id: boardId, cardId: this.card.id } }).catch(() => {})
 		},
-		blurTitle(e) {
+		onTitleBlur(e) {
 			// TODO Handle empty title
 			if (e.target.innerText !== this.card.title) {
 				this.$store.dispatch('updateCardTitle', {
@@ -213,9 +223,45 @@ export default {
 					title: e.target.innerText,
 				})
 			}
+			this.$store.dispatch('toggleShortcutLock', false)
+		},
+		onTitleFocus() {
+			this.$store.dispatch('toggleShortcutLock', true)
 		},
 		cancelEdit() {
 			this.$refs.titleContentEditable.textContent = this.card.title
+			this.$store.dispatch('toggleShortcutLock', false)
+		},
+		handleCardKeyboardShortcut(key) {
+			if (OCP.Accessibility.disableKeyboardShortcuts()) {
+				return
+			}
+
+			if (!this.canEdit || this.$store.state.shortcutLock || key.shiftKey || key.ctrlKey || key.altKey || key.metaKey) {
+				return
+			}
+
+			switch (key.code) {
+			case 'KeyE':
+				this.$refs.titleContentEditable?.focus()
+				break
+			case 'KeyA':
+				this.$store.dispatch('archiveUnarchiveCard', { ...this.card, archived: !this.card.archived })
+				break
+			case 'KeyO':
+				this.$store.dispatch('changeCardDoneStatus', { ...this.card, done: !this.card.done })
+				break
+			case 'KeyM':
+				this.$el.querySelector('button.action-item__menutoggle')?.click()
+				break
+			case 'Enter':
+			case 'Space':
+				this.openCard().then(() => document.getElementById('app-sidebar-vue')?.focus())
+				break
+			case 'KeyS':
+				this.toggleSelfAsignment()
+				break
+			}
 		},
 		applyLabelFilter(label) {
 			if (this.dragging) {
@@ -223,6 +269,18 @@ export default {
 			}
 			this.$nextTick(() => this.$store.dispatch('toggleFilter', { tags: [label.id] }))
 		},
+		toggleSelfAsignment() {
+			const isAssigned = this.card.assignedUsers.find(
+				(item) => item.type === 0 && item.participant.uid === getCurrentUser()?.uid,
+			)
+			this.$store.dispatch(isAssigned ? 'removeUserFromCard' : 'assignCardToUser', {
+				card: this.card,
+				assignee: {
+					userId: getCurrentUser()?.uid,
+					type: 0,
+				},
+			})
+		},
 	},
 }
 </script>
@@ -253,17 +311,17 @@ export default {
 			cursor: pointer;
 		}

-		&:hover {
-			border: 2px solid var(--color-border-dark);
-		}
 		&.current-card {
 			border: 2px solid var(--color-primary-element);
 		}

 		&:focus, &:focus-visible, &:focus-within {
 			outline: none;
+			border: 2px solid var(--color-border-maxcontrast);
+			&.current-card {
 				border: 2px solid var(--color-primary-element);
 			}
+		}

 		.card-upper {
 			display: flex;
--- a/src/components/modals/HelpModal.vue
+++ b/src/components/modals/HelpModal.vue
@@ -0,0 +1,228 @@
+<template>
+	<NcModal size="normal"
+		data-text-el="formatting-help"
+		:name="t('deck', 'Keyboard shortcuts')"
+		@close="$emit('close')">
+		<div class="help-modal">
+			<h2>{{ t('deck', 'Keyboard shortcuts') }}</h2>
+			<p>{{ t('deck', 'Speed up using Deck with simple shortcuts.') }}</p>
+
+			<h3>{{ t('deck', 'Board actions') }}</h3>
+			<table>
+				<thead>
+					<tr>
+						<th>{{ t('deck', 'Keyboard shortcut') }}</th>
+						<th>{{ t('deck', 'Action') }}</th>
+					</tr>
+				</thead>
+				<tbody>
+					<tr>
+						<td>
+							<kbd>{{ t('deck', 'Shift') }}</kbd>
+							+
+							<kbd>{{ t('deck', 'Scroll') }}</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Scroll sideways') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>←</kbd>
+							<kbd>→</kbd>
+							<kbd>↑</kbd>
+							<kbd>↓</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Navigate between cards') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>{{ t('deck', 'Esc') }}</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Close card details') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>{{ t('deck', 'Ctrl') }}</kbd>
+							<kbd>F</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Search') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>F</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Show card filters') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>X</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Clear card filters') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>?</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Show help dialog') }}
+						</td>
+					</tr>
+				</tbody>
+			</table>
+
+			<h3>{{ t('deck', 'Card actions') }}</h3>
+			<p>{{ t('deck', 'The following actions can be triggered on the currently highlighted card') }}</p>
+			<table>
+				<thead>
+					<tr>
+						<th>{{ t('deck', 'Keyboard shortcut') }}</th>
+						<th>{{ t('deck', 'Action') }}</th>
+					</tr>
+				</thead>
+				<tbody>
+					<tr>
+						<td>
+							<kbd>{{ t('deck', 'Enter') }}</kbd>
+							<kbd>{{ t('deck', 'Space') }}</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Open card details') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>E</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Edit the card title') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>S</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Assign yorself to the current card') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>A</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Archive/unarchive the current card') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>O</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Mark card as completed/not completed') }}
+						</td>
+					</tr>
+					<tr>
+						<td>
+							<kbd>M</kbd>
+						</td>
+						<td>
+							{{ t('deck', 'Open card menu') }}
+						</td>
+					</tr>
+				</tbody>
+			</table>
+		</div>
+	</NcModal>
+</template>
+
+<script>
+import { NcModal, Tooltip } from '@nextcloud/vue'
+
+export default {
+	name: 'HelpModal',
+	components: {
+		NcModal,
+	},
+	directives: {
+		Tooltip,
+	},
+}
+</script>
+
+<style lang="scss" scoped>
+	.help-modal {
+		width: max-content;
+		padding: 30px 40px 20px;
+		user-select: text;
+
+		h2, h3 {
+			font-weight: bold;
+		}
+	}
+
+	table {
+		margin-top: 24px;
+		border-collapse: collapse;
+
+		tbody tr {
+			&:hover, &:focus, &:active {
+				background-color: transparent !important;
+			}
+		}
+
+		thead tr {
+			border: none;
+		}
+
+		th {
+			font-weight: bold;
+			padding: .75rem 1rem .75rem 0;
+			border-bottom: 2px solid var(--color-background-darker);
+		}
+
+		td {
+			padding: .75rem 1rem .75rem 0;
+			border-top: 1px solid var(--color-background-dark);
+			border-bottom: unset;
+
+			&.noborder {
+				border-top: unset;
+			}
+
+			&.ellipsis_top {
+				padding-bottom: 0;
+			}
+
+			&.ellipsis {
+				padding-top: 0;
+				padding-bottom: 0;
+			}
+
+			&.ellipsis_bottom {
+				padding-top: 0;
+			}
+		}
+
+		kbd {
+			font-size: smaller;
+		}
+
+		code {
+			padding: .2em .4em;
+			font-size: 90%;
+			background-color: var(--color-background-dark);
+			border-radius: 6px;
+		}
+	}
+</style>
--- a/src/components/navigation/AppNavigation.vue
+++ b/src/components/navigation/AppNavigation.vue
@@ -62,6 +62,10 @@
 		</template>
 		<template #footer>
 			<NcAppNavigationSettings :title="t('deck', 'Deck settings')">
+				<NcButton @click="showHelp = true">
+					{{ t('deck', 'Keyboard shortcuts') }}
+				</NcButton>
+				<HelpModal v-if="showHelp" @close="showHelp=false" />
 				<div>
 					<div>
 						<input id="toggle-modal"
@@ -117,7 +121,7 @@
 import axios from '@nextcloud/axios'
 import { mapGetters } from 'vuex'
 import ClickOutside from 'vue-click-outside'
-import { NcAppNavigation, NcAppNavigationItem, NcAppNavigationSettings, NcMultiselect } from '@nextcloud/vue'
+import { NcAppNavigation, NcAppNavigationItem, NcAppNavigationSettings, NcMultiselect, NcButton } from '@nextcloud/vue'
 import AppNavigationAddBoard from './AppNavigationAddBoard.vue'
 import AppNavigationBoardCategory from './AppNavigationBoardCategory.vue'
 import { loadState } from '@nextcloud/initial-state'
@@ -127,6 +131,8 @@ import ArchiveIcon from 'vue-material-design-icons/Archive.vue'
 import CalendarIcon from 'vue-material-design-icons/Calendar.vue'
 import DeckIcon from './../icons/DeckIcon.vue'
 import ShareVariantIcon from 'vue-material-design-icons/Share.vue'
+import HelpModal from './../modals/HelpModal.vue'
+import { subscribe } from '@nextcloud/event-bus'

 const canCreateState = loadState('deck', 'canCreate')

@@ -135,6 +141,7 @@ export default {
 	components: {
 		NcAppNavigation,
 		NcAppNavigationSettings,
+		NcButton,
 		AppNavigationAddBoard,
 		AppNavigationBoardCategory,
 		NcMultiselect,
@@ -143,6 +150,7 @@ export default {
 		CalendarIcon,
 		DeckIcon,
 		ShareVariantIcon,
+		HelpModal,
 	},
 	directives: {
 		ClickOutside,
@@ -160,6 +168,7 @@ export default {
 			groupLimit: [],
 			groupLimitDisabled: true,
 			canCreate: canCreateState,
+			showHelp: false,
 		}
 	},
 	computed: {
@@ -196,6 +205,11 @@ export default {
 			},
 		},
 	},
+	mounted() {
+		subscribe('deck:global:toggle-help-dialog', () => {
+			this.showHelp = !this.showHelp
+		})
+	},
 	beforeMount() {
 		if (this.isAdmin) {
 			this.groupLimit = this.$store.getters.config('groupLimit')
--- a/src/store/card.js
+++ b/src/store/card.js
@@ -50,7 +50,7 @@ export default {

 				if (users.length > 0) {
 					users.forEach((user) => {
-						if (card.assignedUsers.findIndex((u) => u.participant.uid === user) === -1) {
+						if (!card?.assignedUsers || card.assignedUsers.findIndex((u) => u.participant.uid === user) === -1) {
 							allUsersMatch = false
 						}
 					})
--- a/src/store/main.js
+++ b/src/store/main.js
@@ -74,6 +74,7 @@ export default new Vuex.Store({
 		activity: [],
 		activityLoadMore: true,
 		filter: { tags: [], users: [], due: '' },
+		shortcutLock: false,
 	},
 	getters: {
 		config: state => (key) => {
@@ -307,7 +308,9 @@ export default new Vuex.Store({
 				Vue.delete(state.currentBoard.acl, removeIndex)
 			}
 		},
-
+		TOGGLE_SHORTCUT_LOCK(state, lock) {
+			state.shortcutLock = lock
+		},
 	},
 	actions: {
 		async setConfig({ commit }, config) {
@@ -515,5 +518,8 @@ export default new Vuex.Store({
 				newOwner,
 			})
 		},
+		toggleShortcutLock({ commit }, lock) {
+			commit('TOGGLE_SHORTCUT_LOCK', lock)
+		},
 	},
 })
--- a/src/views/CreateNewCardCustomPicker.vue
+++ b/src/views/CreateNewCardCustomPicker.vue
@@ -371,7 +371,7 @@ h2 {
 }

 .multiselect {
-	min-width: auto;
+	min-width: auto !important;
 }

 .empty-content {