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import {
Component,
ViewChild,
ElementRef,
AfterViewInit,
OnInit,
OnDestroy,
QueryList
} from '@angular/core'
import { Router, NavigationEnd } from '@angular/router'
import { AuthService } from '@app/core'
import { I18n } from '@ngx-translate/i18n-polyfill'
import { filter } from 'rxjs/operators'
import { ListKeyManager } from '@angular/cdk/a11y'
import { UP_ARROW, DOWN_ARROW, ENTER, TAB } from '@angular/cdk/keycodes'
import { SuggestionComponent } from './suggestion.component'
@Component({
selector: 'my-search-typeahead',
templateUrl: './search-typeahead.component.html',
styleUrls: [ './search-typeahead.component.scss' ]
})
export class SearchTypeaheadComponent implements OnInit, OnDestroy, AfterViewInit {
@ViewChild('contentWrapper', { static: true }) contentWrapper: ElementRef
hasChannel = false
inChannel = false
newSearch = true
searchInput: HTMLInputElement
URIPolicy: 'only-followed' | 'any' = 'any'
URIPolicyText: string
inAllText: string
inThisChannelText: string
globalSearchIndex = 'https://index.joinpeertube.org'
keyboardEventsManager: ListKeyManager<SuggestionComponent>
results: any[] = []
constructor (
private authService: AuthService,
private router: Router,
private i18n: I18n
) {
this.URIPolicyText = this.i18n('Determines whether you can resolve any distant content, or if your instance only allows doing so for instances it follows.')
this.inAllText = this.i18n('In all PeerTube')
this.inThisChannelText = this.i18n('In this channel')
}
ngOnInit () {
this.router.events
.pipe(filter(event => event instanceof NavigationEnd))
.subscribe((event: NavigationEnd) => {
this.hasChannel = event.url.startsWith('/videos/watch')
this.inChannel = event.url.startsWith('/video-channels')
this.computeResults()
})
}
ngOnDestroy () {
if (this.keyboardEventsManager) this.keyboardEventsManager.change.unsubscribe()
}
ngAfterViewInit () {
this.searchInput = this.contentWrapper.nativeElement.childNodes[0]
this.searchInput.addEventListener('input', this.computeResults.bind(this))
this.searchInput.addEventListener('keyup', this.handleKeyUp.bind(this))
}
get hasSearch () {
return !!this.searchInput && !!this.searchInput.value
}
get activeResult () {
return this.keyboardEventsManager && this.keyboardEventsManager.activeItem && this.keyboardEventsManager.activeItem.result
}
get showHelp () {
return this.hasSearch && this.newSearch && this.activeResult && this.activeResult.type === 'search-global' || false
}
computeResults () {
this.newSearch = true
let results = [
{
text: 'Maître poney',
type: 'channel'
}
]
if (this.hasSearch) {
results = [
{
text: this.searchInput.value,
type: 'search-channel'
},
{
text: this.searchInput.value,
type: 'search-instance'
},
{
text: this.searchInput.value,
type: 'search-global'
},
...results
]
}
this.results = results.filter(
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')
return true
}
)
}
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)
event.items.forEach(e => e.active = false)
this.keyboardEventsManager.activeItem.active = true
}
this.keyboardEventsManager.change.subscribe(
val => {
event.items.forEach(e => e.active = false)
this.keyboardEventsManager.activeItem.active = true
}
)
}
isUserLoggedIn () {
return this.authService.isLoggedIn()
}
handleKeyUp (event: KeyboardEvent, indexSelected?: number) {
event.stopImmediatePropagation()
if (this.keyboardEventsManager) {
if (event.keyCode === TAB) {
this.keyboardEventsManager.setNextItemActive()
return false
} else if (event.keyCode === DOWN_ARROW || event.keyCode === UP_ARROW) {
this.keyboardEventsManager.onKeydown(event)
return false
} else if (event.keyCode === ENTER) {
this.newSearch = false
// this.router.navigate(this.keyboardEventsManager.activeItem.result)
return false
}
}
}
}
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