feat: implement filtering by tags

src/components/FilterDropdown.vue

@@ -0,0 +1,113 @@
+<!--
+Nextcloud - Tasks
+
+@author Raimund Schlüßler
+@copyright 2024 Raimund Schlüßler <raimund.schluessler@mailbox.org>
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+License as published by the Free Software Foundation; either
+version 3 of the License, or any later version.
+
+This library 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 library. If not, see <http://www.gnu.org/licenses/>.
+
+-->
+
+<template>
+	<NcActions class="filter reactive"
+		force-menu
+		:type="isFilterActive ? 'primary' : 'tertiary'"
+		:title="t('tasks', 'Active filter')">
+		<template #icon>
+			<span class="material-design-icon">
+				<FilterIcon v-if="isFilterActive" :size="20" />
+				<FilterOffIcon v-else :size="20" />
+			</span>
+		</template>
+		<NcActionInput type="multiselect"
+			:label="t('tasks', 'Filter by tags')"
+			track-by="id"
+			:multiple="true"
+			append-to-body
+			:options="tags"
+			:value="filter.tags"
+			@input="setTags">
+			<template #icon>
+				<TagMultiple :size="20" />
+			</template>
+			{{ t('tasks', 'Select tags to filter by') }}
+		</NcActionInput>
+		<NcActionButton class="reactive"
+			:close-after-click="true"
+			@click="resetFilter">
+			<template #icon>
+				<Close :size="20" />
+			</template>
+			{{ t('tasks', 'Reset filter') }}
+		</NcActionButton>
+	</NcActions>
+</template>
+
+<script>
+import { translate as t } from '@nextcloud/l10n'
+import NcActions from '@nextcloud/vue/dist/Components/NcActions.js'
+import NcActionButton from '@nextcloud/vue/dist/Components/NcActionButton.js'
+import NcActionInput from '@nextcloud/vue/dist/Components/NcActionInput.js'
+
+import Close from 'vue-material-design-icons/Close.vue'
+import FilterIcon from 'vue-material-design-icons/Filter.vue'
+import FilterOffIcon from 'vue-material-design-icons/FilterOff.vue'
+import TagMultiple from 'vue-material-design-icons/TagMultiple.vue'
+
+import { mapGetters, mapMutations } from 'vuex'
+
+export default {
+	name: 'FilterDropdown',
+	components: {
+		NcActions,
+		NcActionButton,
+		NcActionInput,
+		Close,
+		FilterIcon,
+		FilterOffIcon,
+		TagMultiple,
+	},
+	computed: {
+		...mapGetters({
+			tags: 'tags',
+			filter: 'filter',
+		}),
+		isFilterActive() {
+			return this.filter.tags.length
+		},
+	},
+	methods: {
+		t,
+		...mapMutations(['setFilter']),
+
+		setTags(tags) {
+			const filter = this.filter
+			filter.tags = tags
+			this.setFilter(filter)
+		},
+
+		resetFilter() {
+			this.setFilter({ tags: [] })
+		},
+	},
+}
+</script>
+
+<style lang="scss" scoped>
+// overlay the sort direction icon with the sort order icon
+.material-design-icon {
+	width: 44px;
+	height: 44px;
+}
+</style>

src/components/HeaderBar.vue

@@ -38,6 +38,7 @@ License along with this library. If not, see <http://www.gnu.org/licenses/>.
 				<Plus :size="20" />
 			</NcTextField>
 		</div>
+		<FilterDropdown />
 		<SortorderDropdown />
 		<CreateMultipleTasksDialog v-if="showCreateMultipleTasksModal"
 			:calendar="calendar"
@@ -49,6 +50,7 @@ License along with this library. If not, see <http://www.gnu.org/licenses/>.
 </template>
 
 <script>
+import FilterDropdown from './FilterDropdown.vue'
 import SortorderDropdown from './SortorderDropdown.vue'
 import openNewTask from '../mixins/openNewTask.js'
 
@@ -67,6 +69,7 @@ export default {
 	components: {
 		CreateMultipleTasksDialog,
 		NcTextField,
+		FilterDropdown,
 		SortorderDropdown,
 		Plus,
 	},
@@ -194,12 +197,16 @@ $breakpoint-mobile: 1024px;
 
 	&__input {
 		position: relative;
-		width: calc(100% - 44px);
+		width: calc(100% - 88px);
 	}
 
-	.sortorder {
-		margin-left: auto;
+	.sortorder,
+	.filter {
 		margin-top: 6px;
 	}
+
+	.filter {
+		margin-left: auto;
+	}
 }
 </style>

src/components/TaskBody.vue

@@ -53,7 +53,10 @@ License along with this library. If not, see <http://www.gnu.org/licenses/>.
 					<span v-linkify="{text: task.summary, linkify: true}" />
 				</div>
 				<div v-if="task.tags.length > 0" class="tags-list">
-					<span v-for="(tag, index) in task.tags" :key="index" class="tag">
+					<span v-for="(tag, index) in task.tags"
+						:key="index"
+						class="tag no-nav"
+						@click="addTagToFilter(tag)">
 						<span :title="tag" class="tag-label">
 							{{ tag }}
 						</span>
@@ -260,6 +263,7 @@ export default {
 	computed: {
 		...mapGetters({
 			searchQuery: 'searchQuery',
+			filter: 'filter',
 		}),
 
 		dueDateShort() {
@@ -428,11 +432,11 @@ export default {
 		 */
 		showTask() {
 			// If the task directly matches the search, we show it.
-			if (this.task.matches(this.searchQuery)) {
+			if (this.task.matches(this.searchQuery, this.filter)) {
 				return true
 			}
 			// We also have to show tasks for which one sub(sub...)task matches.
-			return this.searchSubTasks(this.task, this.searchQuery)
+			return this.searchSubTasks(this.task, this.searchQuery, this.filter)
 		},
 
 		/**
@@ -481,7 +485,7 @@ export default {
 			'clearTaskDeletion',
 			'fetchFullTask',
 		]),
-		...mapMutations(['resetStatus']),
+		...mapMutations(['resetStatus', 'setFilter']),
 		sort,
 		/**
 		 * Checks if a date is overdue
@@ -494,6 +498,14 @@ export default {
 			}
 		},
 
+		addTagToFilter(tag) {
+			const filter = this.filter
+			if (!this.filter?.tags.includes(tag)) {
+				filter.tags.push(tag)
+				this.setFilter(filter)
+			}
+		},
+
 		/**
 		 * Set task uri in the data transfer object
 		 * so we can get it when dropped on an
@@ -870,13 +882,15 @@ $breakpoint-mobile: 1024px;
 						border-radius: 18px !important;
 						margin: 4px 2px;
 						align-items: center;
+						cursor: pointer;
 
 						.tag-label {
 							text-overflow: ellipsis;
 							overflow: hidden;
 							white-space: nowrap;
 							width: 100%;
 							text-align: center;
+							cursor: pointer;
 						}
 					}
 				}

src/models/task.js

@@ -122,9 +122,6 @@ export default class Task {
 			sortOrder = this.getSortOrder()
 		}
 		this._sortOrder = +sortOrder
-
-		this._searchQuery = ''
-		this._matchesSearchQuery = true
 	}
 
 	/**
@@ -680,19 +677,21 @@ export default class Task {
 	 * Checks if the task matches the search query
 	 *
 	 * @param {string} searchQuery The search string
+	 * @param {object} filter Object containing the filter parameters
 	 * @return {boolean} If the task matches
 	 */
-	matches(searchQuery) {
-		// If the search query maches the previous search, we don't have to search again.
-		if (this._searchQuery === searchQuery) {
-			return this._matchesSearchQuery
+	matches(searchQuery, filter) {
+		// Check whether the filter matches
+		// Needs to match all tags
+		for (const tag of (filter?.tags || {})) {
+			if (!this.tags.includes(tag)) {
+				return false
+			}
 		}
-		// We cache the current search query for faster future comparison.
-		this._searchQuery = searchQuery
+
 		// If the search query is empty, the task matches by default.
 		if (!searchQuery) {
-			this._matchesSearchQuery = true
-			return this._matchesSearchQuery
+			return true
 		}
 		// We search in these task properties
 		const keys = ['summary', 'note', 'tags']
@@ -702,20 +701,17 @@ export default class Task {
 			// For the tags search the array
 			if (key === 'tags') {
 				for (const tag of this[key]) {
-					if (tag.toLowerCase().indexOf(searchQuery) > -1) {
-						this._matchesSearchQuery = true
-						return this._matchesSearchQuery
+					if (tag.toLowerCase().includes(searchQuery)) {
+						return true
 					}
 				}
 			} else {
-				if (this[key].toLowerCase().indexOf(searchQuery) > -1) {
-					this._matchesSearchQuery = true
-					return this._matchesSearchQuery
+				if (this[key].toLowerCase().includes(searchQuery)) {
+					return true
 				}
 			}
 		}
-		this._matchesSearchQuery = false
-		return this._matchesSearchQuery
+		return false
 	}
 
 }

src/store/calendars.js

@@ -257,13 +257,13 @@ const getters = {
 				.filter(task => {
 					return task.closed === false && (!task.related || !isParentInList(task, calendar.tasks))
 				})
-			if (rootState.tasks.searchQuery) {
+			if (rootState.tasks.searchQuery || rootState.tasks.filter.tags.length) {
 				tasks = tasks.filter(task => {
-					if (task.matches(rootState.tasks.searchQuery)) {
+					if (task.matches(rootState.tasks.searchQuery, rootState.tasks.filter)) {
 						return true
 					}
 					// We also have to show tasks for which one sub(sub...)task matches.
-					return searchSubTasks(task, rootState.tasks.searchQuery)
+					return searchSubTasks(task, rootState.tasks.searchQuery, rootState.tasks.filter)
 				})
 			}
 			return tasks.length

src/store/collections.js

@@ -60,13 +60,13 @@ const getters = {
 				let tasks = Object.values(calendar.tasks).filter(task => {
 					return isTaskInList(task, collectionId, false)
 				})
-				if (rootState.tasks.searchQuery) {
+				if (rootState.tasks.searchQuery || rootState.tasks.filter.tags.length) {
 					tasks = tasks.filter(task => {
-						if (task.matches(rootState.tasks.searchQuery)) {
+						if (task.matches(rootState.tasks.searchQuery, rootState.tasks.filter)) {
 							return true
 						}
 						// We also have to show tasks for which one sub(sub...)task matches.
-						return searchSubTasks(task, rootState.tasks.searchQuery)
+						return searchSubTasks(task, rootState.tasks.searchQuery, rootState.tasks.filter)
 					})
 				}
 				count += tasks.length

src/store/storeHelper.js

@@ -438,14 +438,15 @@ function momentToICALTime(moment, asDate) {
  *
  * @param {Task} task The task to search in
  * @param {string} searchQuery The string to find
+ * @param {object} filter The filter to apply to the task
  * @return {boolean} If the task matches
  */
-function searchSubTasks(task, searchQuery) {
+function searchSubTasks(task, searchQuery, filter) {
 	return Object.values(task.subTasks).some((subTask) => {
-		if (subTask.matches(searchQuery)) {
+		if (subTask.matches(searchQuery, filter)) {
 			return true
 		}
-		return searchSubTasks(subTask, searchQuery)
+		return searchSubTasks(subTask, searchQuery, filter)
 	})
 }
 

src/store/tasks.js

@@ -41,6 +41,9 @@ Vue.use(Vuex)
 const state = {
 	tasks: {},
 	searchQuery: '',
+	filter: {
+		tags: [],
+	},
 	deletedTasks: {},
 	deleteInterval: null,
 }
@@ -263,6 +266,18 @@ const getters = {
 		return state.searchQuery
 	},
 
+	/**
+	 * Returns the current filter
+	 *
+	 * @param {object} state The store data
+	 * @param {object} getters The store getters
+	 * @param {object} rootState The store root state
+	 * @return {string} The current filter
+	 */
+	filter: (state, getters, rootState) => {
+		return state.filter
+	},
+
 	/**
 	 * Returns all tags of all tasks
 	 *
@@ -660,6 +675,17 @@ const mutations = {
 		state.searchQuery = searchQuery
 	},
 
+	/**
+	 * Sets the filter
+	 *
+	 * @param {object} state The store data
+	 * @param {string} filter The filter
+	 */
+	setFilter(state, filter) {
+		Vue.set(state.filter, 'tags', filter.tags)
+		state.filter = filter
+	},
+
 	addTaskForDeletion(state, { task }) {
 		Vue.set(state.deletedTasks, task.key, task)
 	},