client: allow multi-select of filters with Ctrl and Shift keys

client/src/javascript/components/sidebar/SidebarFilter.tsx

@@ -1,5 +1,5 @@
 import classnames from 'classnames';
-import {FC, ReactNode} from 'react';
+import {FC, ReactNode, KeyboardEvent, MouseEvent, TouchEvent} from 'react';
 import {useLingui} from '@lingui/react';
 
 import Badge from '../general/Badge';
@@ -12,7 +12,7 @@ interface SidebarFilterProps {
   slug: string;
   count: number;
   size?: number;
-  handleClick: (slug: string) => void;
+  handleClick: (slug: string, event: KeyboardEvent | MouseEvent | TouchEvent) => void;
 }
 
 const SidebarFilter: FC<SidebarFilterProps> = ({
@@ -57,7 +57,7 @@ const SidebarFilter: FC<SidebarFilterProps> = ({
           },
         }}
         type="button"
-        onClick={() => handleClick(slug)}
+        onClick={(event) => handleClick(slug, event)}
         role="menuitem"
       >
         {icon}

client/src/javascript/components/sidebar/StatusFilters.tsx

@@ -66,11 +66,14 @@ const StatusFilters: FC = observer(() => {
 
   const filterElements = filters.map((filter) => (
     <SidebarFilter
-      handleClick={(selection) => TorrentFilterStore.setStatusFilter(selection as TorrentStatus)}
+      handleClick={(selection, event) => TorrentFilterStore.setStatusFilters(selection as TorrentStatus, event)}
       count={TorrentFilterStore.taxonomy.statusCounts[filter.slug] || 0}
       key={filter.slug}
       icon={filter.icon}
-      isActive={filter.slug === TorrentFilterStore.filters.statusFilter}
+      isActive={
+        (filter.slug === '' && !TorrentFilterStore.filters.statusFilter.length) ||
+        TorrentFilterStore.filters.statusFilter.includes(filter.slug as TorrentStatus)
+      }
       name={filter.label}
       slug={filter.slug}
     />

client/src/javascript/components/sidebar/TagFilters.tsx

@@ -28,10 +28,13 @@ const TagFilters: FC = observer(() => {
 
   const filterElements = filterItems.map((filter) => (
     <SidebarFilter
-      handleClick={(tag) => TorrentFilterStore.setTagFilter(tag)}
+      handleClick={(tag, event) => TorrentFilterStore.setTagFilters(tag, event)}
       count={TorrentFilterStore.taxonomy.tagCounts[filter] || 0}
       key={filter}
-      isActive={filter === TorrentFilterStore.filters.tagFilter}
+      isActive={
+        (filter === '' && !TorrentFilterStore.filters.tagFilter.length) ||
+        TorrentFilterStore.filters.tagFilter.includes(filter)
+      }
       name={filter}
       slug={filter}
       size={TorrentFilterStore.taxonomy.tagSizes[filter]}

client/src/javascript/components/sidebar/TrackerFilters.tsx

@@ -27,10 +27,13 @@ const TrackerFilters: FC = observer(() => {
 
   const filterElements = filterItems.map((filter) => (
     <SidebarFilter
-      handleClick={(tracker) => TorrentFilterStore.setTrackerFilter(tracker)}
+      handleClick={(tracker, event) => TorrentFilterStore.setTrackerFilters(tracker, event)}
       count={TorrentFilterStore.taxonomy.trackerCounts[filter] || 0}
       key={filter}
-      isActive={filter === TorrentFilterStore.filters.trackerFilter}
+      isActive={
+        (filter === '' && !TorrentFilterStore.filters.trackerFilter.length) ||
+        TorrentFilterStore.filters.trackerFilter.includes(filter)
+      }
       name={filter}
       slug={filter}
       size={TorrentFilterStore.taxonomy.trackerSizes[filter]}

client/src/javascript/stores/TorrentFilterStore.ts

@@ -1,20 +1,21 @@
 import {computed, makeAutoObservable} from 'mobx';
 import jsonpatch, {Operation} from 'fast-json-patch';
+import {KeyboardEvent, MouseEvent, TouchEvent} from 'react';
 
 import type {Taxonomy} from '@shared/types/Taxonomy';
-import type {TorrentStatus} from '@shared/constants/torrentStatusMap';
+import torrentStatusMap, {TorrentStatus} from '@shared/constants/torrentStatusMap';
 
 class TorrentFilterStore {
   filters: {
     searchFilter: string;
-    statusFilter: TorrentStatus | '';
-    tagFilter: string;
-    trackerFilter: string;
+    statusFilter: Array<TorrentStatus>;
+    tagFilter: Array<string>;
+    trackerFilter: Array<string>;
   } = {
     searchFilter: '',
-    statusFilter: '',
-    tagFilter: '',
-    trackerFilter: '',
+    statusFilter: [],
+    tagFilter: [],
+    trackerFilter: [],
   };
 
   taxonomy: Taxonomy = {
@@ -28,9 +29,9 @@ class TorrentFilterStore {
   @computed get isFilterActive() {
     return (
       this.filters.searchFilter !== '' ||
-      this.filters.statusFilter !== '' ||
-      this.filters.tagFilter !== '' ||
-      this.filters.trackerFilter !== ''
+      this.filters.statusFilter.length ||
+      this.filters.tagFilter.length ||
+      this.filters.trackerFilter.length
     );
   }
 
@@ -41,9 +42,9 @@ class TorrentFilterStore {
   clearAllFilters() {
     this.filters = {
       searchFilter: '',
-      statusFilter: '',
-      tagFilter: '',
-      trackerFilter: '',
+      statusFilter: [],
+      tagFilter: [],
+      trackerFilter: [],
     };
   }
 
@@ -62,25 +63,73 @@ class TorrentFilterStore {
     };
   }
 
-  setStatusFilter(filter: TorrentStatus) {
-    this.filters = {
-      ...this.filters,
-      statusFilter: filter,
-    };
+  setStatusFilters(filter: TorrentStatus | '', event: KeyboardEvent | MouseEvent | TouchEvent) {
+    this.computeFilters(torrentStatusMap, this.filters.statusFilter, filter, event);
   }
 
-  setTagFilter(filter: string) {
-    this.filters = {
-      ...this.filters,
-      tagFilter: filter,
-    };
+  setTagFilters(filter: string, event: KeyboardEvent | MouseEvent | TouchEvent) {
+    const tags = Object.keys(this.taxonomy.tagCounts).sort((a, b) => {
+      if (a === 'untagged') return -1;
+      else if (b === 'untagged') return 1;
+      else return a.localeCompare(b);
+    });
+
+    // Put 'untagged' in the correct second position for shift click ordering
+    tags.splice(tags.indexOf('untagged'), 1);
+    tags.splice(1, 0, 'untagged');
+
+    this.computeFilters(tags, this.filters.tagFilter, filter, event);
   }
 
-  setTrackerFilter(filter: string) {
-    this.filters = {
-      ...this.filters,
-      trackerFilter: filter,
-    };
+  setTrackerFilters(filter: string, event: KeyboardEvent | MouseEvent | TouchEvent) {
+    const trackers = Object.keys(this.taxonomy.trackerCounts).sort((a, b) => a.localeCompare(b));
+
+    this.computeFilters(trackers, this.filters.trackerFilter, filter, event);
+  }
+
+  private computeFilters<T extends TorrentStatus | string>(
+    keys: readonly T[],
+    currentFilters: Array<T>,
+    newFilter: T,
+    event: KeyboardEvent | MouseEvent | TouchEvent,
+  ) {
+    if (newFilter === ('' as T)) {
+      currentFilters.splice(0);
+    } else if (event.shiftKey) {
+      if (currentFilters.length) {
+        const lastKey = currentFilters[currentFilters.length - 1];
+        const lastKeyIndex = keys.indexOf(lastKey);
+        let currentKeyIndex = keys.indexOf(newFilter);
+
+        if (!~currentKeyIndex || !~lastKeyIndex) {
+          return;
+        }
+
+        // from the previously selected index to the currently selected index,
+        // add all filters to the selected array.
+        // if the newly selcted index is larger than the previous, start from
+        // the newly selected index and work backwards. otherwise go forwards.
+        const increment = currentKeyIndex > lastKeyIndex ? -1 : 1;
+
+        for (; currentKeyIndex !== lastKeyIndex; currentKeyIndex += increment) {
+          const foundKey = keys[currentKeyIndex] as T;
+          // if the filter isn't already selected, add the filter to the array.
+          if (!currentFilters.includes(foundKey)) {
+            currentFilters.push(foundKey);
+          }
+        }
+      } else {
+        currentFilters.splice(0, currentFilters.length, newFilter);
+      }
+    } else if (event.metaKey || event.ctrlKey) {
+      if (currentFilters.includes(newFilter)) {
+        currentFilters.splice(currentFilters.indexOf(newFilter), 1);
+      } else {
+        currentFilters.push(newFilter);
+      }
+    } else {
+      currentFilters.splice(0, currentFilters.length, newFilter);
+    }
   }
 }
 

client/src/javascript/stores/TorrentStore.ts

@@ -32,21 +32,21 @@ class TorrentStore {
       filteredTorrents = termMatch(filteredTorrents, (properties) => properties.name, searchFilter);
     }
 
-    if (statusFilter !== '') {
+    if (statusFilter.length) {
       filteredTorrents = filterTorrents(filteredTorrents, {
         type: 'status',
         filter: statusFilter,
       });
     }
 
-    if (tagFilter !== '') {
+    if (tagFilter.length) {
       filteredTorrents = filterTorrents(filteredTorrents, {
         type: 'tag',
         filter: tagFilter,
       });
     }
 
-    if (trackerFilter !== '') {
+    if (trackerFilter.length) {
       filteredTorrents = filterTorrents(filteredTorrents, {
         type: 'tracker',
         filter: trackerFilter,

client/src/javascript/util/filterTorrents.ts

@@ -3,40 +3,38 @@ import type {TorrentStatus} from '@shared/constants/torrentStatusMap';
 
 interface StatusFilter {
   type: 'status';
-  filter: TorrentStatus;
+  filter: TorrentStatus[];
 }
 
 interface TrackerFilter {
   type: 'tracker';
-  filter: string;
+  filter: string[];
 }
 
 interface TagFilter {
   type: 'tag';
-  filter: string;
+  filter: string[];
 }
 
 function filterTorrents(
   torrentList: TorrentProperties[],
   opts: StatusFilter | TrackerFilter | TagFilter,
 ): TorrentProperties[] {
-  const {type, filter} = opts;
-
-  if (filter !== '') {
-    if (type === 'status') {
-      return torrentList.filter((torrent) => torrent.status.includes(filter as TorrentStatus));
-    }
-    if (type === 'tracker') {
-      return torrentList.filter((torrent) => torrent.trackerURIs.includes(filter));
-    }
-    if (type === 'tag') {
-      return torrentList.filter((torrent) => {
-        if (filter === 'untagged') {
-          return torrent.tags.length === 0;
+  if (opts.filter.length) {
+    if (opts.type === 'status') {
+      return torrentList.filter((torrent) => torrent.status.some((status) => opts.filter.includes(status)));
     }
 
-        return torrent.tags.includes(filter);
-      });
+    if (opts.type === 'tracker') {
+      return torrentList.filter((torrent) => torrent.trackerURIs.some((uri) => opts.filter.includes(uri)));
+    }
+
+    if (opts.type === 'tag') {
+      const includeUntagged = opts.filter.includes('untagged');
+      return torrentList.filter(
+        (torrent) =>
+          (includeUntagged && torrent.tags.length === 0) || torrent.tags.some((tag) => opts.filter.includes(tag)),
+      );
     }
   }
 

shared/constants/torrentStatusMap.ts

@@ -1,12 +1,12 @@
 const torrentStatusMap = [
-  'checking',
-  'seeding',
-  'complete',
   'downloading',
+  'seeding',
+  'checking',
+  'complete',
   'stopped',
-  'error',
-  'inactive',
   'active',
+  'inactive',
+  'error',
 ] as const;
 
 export type TorrentStatus = typeof torrentStatusMap[number];