blob: 8dfb74b2a12299eb9465911b287f950b3e5ea7a8 (
plain) (
tree)
|
|
import { Component, forwardRef, Input, OnInit } from '@angular/core'
import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms'
import { truncate } from 'lodash'
import 'rxjs/add/operator/debounceTime'
import 'rxjs/add/operator/distinctUntilChanged'
import { Subject } from 'rxjs/Subject'
import { MarkdownService } from '../../shared'
@Component({
selector: 'my-video-description',
templateUrl: './video-description.component.html',
styleUrls: [ './video-description.component.scss' ],
providers: [
{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => VideoDescriptionComponent),
multi: true
}
]
})
export class VideoDescriptionComponent implements ControlValueAccessor, OnInit {
@Input() description = ''
truncatedDescriptionHTML = ''
descriptionHTML = ''
private descriptionChanged = new Subject<string>()
constructor (private markdownService: MarkdownService) {}
ngOnInit () {
this.descriptionChanged
.debounceTime(150)
.distinctUntilChanged()
.subscribe(() => this.updateDescriptionPreviews())
this.descriptionChanged.next(this.description)
}
propagateChange = (_: any) => { /* empty */ }
writeValue (description: string) {
this.description = description
this.descriptionChanged.next(this.description)
}
registerOnChange (fn: (_: any) => void) {
this.propagateChange = fn
}
registerOnTouched () {
// Unused
}
onModelChange () {
this.propagateChange(this.description)
this.descriptionChanged.next(this.description)
}
private updateDescriptionPreviews () {
this.truncatedDescriptionHTML = this.markdownService.markdownToHTML(truncate(this.description, { length: 250 }))
this.descriptionHTML = this.markdownService.markdownToHTML(this.description)
}
}
|