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1 | import { of } from 'rxjs' | |
2 | import { first, tap } from 'rxjs/operators' | |
3 | import { ListKeyManager } from '@angular/cdk/a11y' | |
4 | import { AfterViewChecked, AfterViewInit, Component, OnDestroy, OnInit, QueryList, ViewChildren } from '@angular/core' | |
5 | import { ActivatedRoute, Params, Router } from '@angular/router' | |
6 | import { AuthService, ServerService } from '@app/core' | |
7 | import { SearchTargetType, ServerConfig } from '@shared/models' | |
8 | import { SuggestionComponent, SuggestionPayload, SuggestionPayloadType } from './suggestion.component' | |
9 | ||
10 | @Component({ | |
11 | selector: 'my-search-typeahead', | |
12 | templateUrl: './search-typeahead.component.html', | |
13 | styleUrls: [ './search-typeahead.component.scss' ] | |
14 | }) | |
15 | export class SearchTypeaheadComponent implements OnInit, AfterViewInit, AfterViewChecked, OnDestroy { | |
16 | @ViewChildren(SuggestionComponent) suggestionItems: QueryList<SuggestionComponent> | |
17 | ||
18 | hasChannel = false | |
19 | inChannel = false | |
20 | areSuggestionsOpened = true | |
21 | ||
22 | search = '' | |
23 | serverConfig: ServerConfig | |
24 | ||
25 | inThisChannelText: string | |
26 | ||
27 | keyboardEventsManager: ListKeyManager<SuggestionComponent> | |
28 | results: SuggestionPayload[] = [] | |
29 | ||
30 | activeSearch: SuggestionPayloadType | |
31 | ||
32 | private scheduleKeyboardEventsInit = false | |
33 | ||
34 | constructor ( | |
35 | private authService: AuthService, | |
36 | private router: Router, | |
37 | private route: ActivatedRoute, | |
38 | private serverService: ServerService | |
39 | ) {} | |
40 | ||
41 | ngOnInit () { | |
42 | this.route.queryParams | |
43 | .pipe(first(params => this.isOnSearch() && params.search !== undefined && params.search !== null)) | |
44 | .subscribe(params => this.search = params.search) | |
45 | } | |
46 | ||
47 | ngAfterViewInit () { | |
48 | this.serverService.getConfig() | |
49 | .subscribe(config => { | |
50 | this.serverConfig = config | |
51 | ||
52 | this.computeTypeahead() | |
53 | ||
54 | this.serverService.configReloaded | |
55 | .subscribe(config => { | |
56 | this.serverConfig = config | |
57 | this.computeTypeahead() | |
58 | }) | |
59 | }) | |
60 | } | |
61 | ||
62 | ngAfterViewChecked () { | |
63 | if (this.scheduleKeyboardEventsInit && !this.keyboardEventsManager) { | |
64 | // Avoid ExpressionChangedAfterItHasBeenCheckedError errors | |
65 | setTimeout(() => this.initKeyboardEventsManager(), 0) | |
66 | } | |
67 | } | |
68 | ||
69 | ngOnDestroy () { | |
70 | if (this.keyboardEventsManager) this.keyboardEventsManager.change.unsubscribe() | |
71 | } | |
72 | ||
73 | areInstructionsDisplayed () { | |
74 | return !this.search | |
75 | } | |
76 | ||
77 | showSearchGlobalHelp () { | |
78 | return this.search && this.areSuggestionsOpened && this.keyboardEventsManager?.activeItem?.result?.type === 'search-index' | |
79 | } | |
80 | ||
81 | canSearchAnyURI () { | |
82 | if (!this.serverConfig) return false | |
83 | ||
84 | return this.authService.isLoggedIn() | |
85 | ? this.serverConfig.search.remoteUri.users | |
86 | : this.serverConfig.search.remoteUri.anonymous | |
87 | } | |
88 | ||
89 | onSearchChange () { | |
90 | this.computeTypeahead() | |
91 | } | |
92 | ||
93 | initKeyboardEventsManager () { | |
94 | if (this.keyboardEventsManager) return | |
95 | ||
96 | this.keyboardEventsManager = new ListKeyManager(this.suggestionItems) | |
97 | ||
98 | const activeIndex = this.suggestionItems.toArray().findIndex(i => i.result.default === true) | |
99 | if (activeIndex === -1) { | |
100 | console.error('Cannot find active index.', { suggestionItems: this.suggestionItems }) | |
101 | } | |
102 | ||
103 | this.updateItemsState(activeIndex) | |
104 | ||
105 | this.keyboardEventsManager.change.subscribe( | |
106 | _ => this.updateItemsState() | |
107 | ) | |
108 | } | |
109 | ||
110 | computeTypeahead () { | |
111 | const searchIndexConfig = this.serverConfig.search.searchIndex | |
112 | ||
113 | if (!this.activeSearch) { | |
114 | if (searchIndexConfig.enabled && (searchIndexConfig.isDefaultSearch || searchIndexConfig.disableLocalSearch)) { | |
115 | this.activeSearch = 'search-index' | |
116 | } else { | |
117 | this.activeSearch = 'search-instance' | |
118 | } | |
119 | } | |
120 | ||
121 | this.areSuggestionsOpened = true | |
122 | this.results = [] | |
123 | ||
124 | if (!this.search) return | |
125 | ||
126 | if (searchIndexConfig.enabled === false || searchIndexConfig.disableLocalSearch !== true) { | |
127 | this.results.push({ | |
128 | text: this.search, | |
129 | type: 'search-instance', | |
130 | default: this.activeSearch === 'search-instance' | |
131 | }) | |
132 | } | |
133 | ||
134 | if (searchIndexConfig.enabled) { | |
135 | this.results.push({ | |
136 | text: this.search, | |
137 | type: 'search-index', | |
138 | default: this.activeSearch === 'search-index' | |
139 | }) | |
140 | } | |
141 | ||
142 | this.scheduleKeyboardEventsInit = true | |
143 | } | |
144 | ||
145 | updateItemsState (index?: number) { | |
146 | if (index !== undefined) { | |
147 | this.keyboardEventsManager.setActiveItem(index) | |
148 | } | |
149 | ||
150 | for (const item of this.suggestionItems) { | |
151 | if (this.keyboardEventsManager.activeItem && this.keyboardEventsManager.activeItem === item) { | |
152 | item.active = true | |
153 | this.activeSearch = item.result.type | |
154 | continue | |
155 | } | |
156 | ||
157 | item.active = false | |
158 | } | |
159 | } | |
160 | ||
161 | onSuggestionlicked (payload: SuggestionPayload) { | |
162 | this.doSearch(this.buildSearchTarget(payload)) | |
163 | } | |
164 | ||
165 | onSuggestionHover (index: number) { | |
166 | this.updateItemsState(index) | |
167 | } | |
168 | ||
169 | handleKey (event: KeyboardEvent) { | |
170 | if (!this.keyboardEventsManager) return | |
171 | ||
172 | switch (event.key) { | |
173 | case 'ArrowDown': | |
174 | case 'ArrowUp': | |
175 | event.stopPropagation() | |
176 | ||
177 | this.keyboardEventsManager.onKeydown(event) | |
178 | break | |
179 | } | |
180 | } | |
181 | ||
182 | isOnSearch () { | |
183 | return window.location.pathname === '/search' | |
184 | } | |
185 | ||
186 | doSearch (searchTarget?: SearchTargetType) { | |
187 | this.areSuggestionsOpened = false | |
188 | const queryParams: Params = {} | |
189 | ||
190 | if (this.isOnSearch() && this.route.snapshot.queryParams) { | |
191 | Object.assign(queryParams, this.route.snapshot.queryParams) | |
192 | } | |
193 | ||
194 | if (!searchTarget) { | |
195 | searchTarget = this.buildSearchTarget(this.keyboardEventsManager.activeItem.result) | |
196 | } | |
197 | ||
198 | Object.assign(queryParams, { search: this.search, searchTarget }) | |
199 | ||
200 | const o = this.authService.isLoggedIn() | |
201 | ? this.loadUserLanguagesIfNeeded(queryParams) | |
202 | : of(true) | |
203 | ||
204 | o.subscribe(() => this.router.navigate([ '/search' ], { queryParams })) | |
205 | } | |
206 | ||
207 | private loadUserLanguagesIfNeeded (queryParams: any) { | |
208 | if (queryParams && queryParams.languageOneOf) return of(queryParams) | |
209 | ||
210 | return this.authService.userInformationLoaded | |
211 | .pipe( | |
212 | first(), | |
213 | tap(() => Object.assign(queryParams, { languageOneOf: this.authService.getUser().videoLanguages })) | |
214 | ) | |
215 | } | |
216 | ||
217 | private buildSearchTarget (result: SuggestionPayload): SearchTargetType { | |
218 | if (result.type === 'search-index') { | |
219 | return 'search-index' | |
220 | } | |
221 | ||
222 | return 'local' | |
223 | } | |
224 | } |