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import { Component, ElementRef, OnDestroy, OnInit, QueryList, ViewChild } from '@angular/core'
import { ActivatedRoute, Params, Router } from '@angular/router'
import { AuthService, ServerService } from '@app/core'
import { first, tap } from 'rxjs/operators'
import { ListKeyManager } from '@angular/cdk/a11y'
import { Result, SuggestionComponent } from './suggestion.component'
import { of } from 'rxjs'
import { ServerConfig } from '@shared/models'
@Component({
selector: 'my-search-typeahead',
templateUrl: './search-typeahead.component.html',
styleUrls: [ './search-typeahead.component.scss' ]
})
export class SearchTypeaheadComponent implements OnInit, OnDestroy {
@ViewChild('searchVideo', { static: true }) searchInput: ElementRef<HTMLInputElement>
hasChannel = false
inChannel = false
newSearch = true
search = ''
serverConfig: ServerConfig
inThisChannelText: string
keyboardEventsManager: ListKeyManager<SuggestionComponent>
results: Result[] = []
constructor (
private authService: AuthService,
private router: Router,
private route: ActivatedRoute,
private serverService: ServerService
) {}
ngOnInit () {
this.route.queryParams
.pipe(first(params => params.search !== undefined && params.search !== null))
.subscribe(params => this.search = params.search)
this.serverService.getConfig()
.subscribe(config => this.serverConfig = config)
}
ngOnDestroy () {
if (this.keyboardEventsManager) this.keyboardEventsManager.change.unsubscribe()
}
get activeResult () {
return this.keyboardEventsManager?.activeItem?.result
}
get areInstructionsDisplayed () {
return !this.search
}
get showHelp () {
return this.search && this.newSearch && this.activeResult?.type === 'search-global'
}
get canSearchAnyURI () {
if (!this.serverConfig) return false
return this.authService.isLoggedIn()
? this.serverConfig.search.remoteUri.users
: this.serverConfig.search.remoteUri.anonymous
}
onSearchChange () {
this.computeResults()
}
computeResults () {
this.newSearch = true
let results: Result[] = []
if (this.search) {
results = [
/* Channel search is still unimplemented. Uncomment when it is.
{
text: this.search,
type: 'search-channel'
},
*/
{
text: this.search,
type: 'search-instance',
default: true
},
/* Global search is still unimplemented. Uncomment when it is.
{
text: this.search,
type: 'search-global'
},
*/
...results
]
}
this.results = results.filter(
(result: Result) => {
// if we're not in a channel or one of its videos/playlits, show all channel-related results
if (!(this.hasChannel || this.inChannel)) return !result.type.includes('channel')
// if we're in a channel, show all channel-related results except for the channel redirection itself
if (this.inChannel) return result.type !== 'channel'
// all other result types are kept
return true
}
)
}
setEventItems (event: { items: QueryList<SuggestionComponent>, index?: number }) {
event.items.forEach(e => {
if (this.keyboardEventsManager.activeItem && this.keyboardEventsManager.activeItem === e) {
this.keyboardEventsManager.activeItem.active = true
} else {
e.active = false
}
})
}
initKeyboardEventsManager (event: { items: QueryList<SuggestionComponent>, index?: number }) {
if (this.keyboardEventsManager) this.keyboardEventsManager.change.unsubscribe()
this.keyboardEventsManager = new ListKeyManager(event.items)
if (event.index !== undefined) {
this.keyboardEventsManager.setActiveItem(event.index)
} else {
this.keyboardEventsManager.setFirstItemActive()
}
this.keyboardEventsManager.change.subscribe(
_ => this.setEventItems(event)
)
}
handleKeyUp (event: KeyboardEvent) {
event.stopImmediatePropagation()
if (!this.keyboardEventsManager) return
switch (event.key) {
case 'ArrowDown':
case 'ArrowUp':
this.keyboardEventsManager.onKeydown(event)
break
case 'Enter':
this.newSearch = false
this.doSearch()
break
}
}
doSearch () {
const queryParams: Params = {}
if (window.location.pathname === '/search' && this.route.snapshot.queryParams) {
Object.assign(queryParams, this.route.snapshot.queryParams)
}
Object.assign(queryParams, { search: this.search })
const o = this.authService.isLoggedIn()
? this.loadUserLanguagesIfNeeded(queryParams)
: of(true)
o.subscribe(() => this.router.navigate([ '/search' ], { queryParams }))
}
private loadUserLanguagesIfNeeded (queryParams: any) {
if (queryParams && queryParams.languageOneOf) return of(queryParams)
return this.authService.userInformationLoaded
.pipe(
first(),
tap(() => Object.assign(queryParams, { languageOneOf: this.authService.getUser().videoLanguages }))
)
}
}
|
