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import { Component, forwardRef, Input, OnInit } from '@angular/core'
import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms'
import { ServerService } from '@app/core'
import { imageToDataURL } from '@root-helpers/images'
import { HTMLServerConfig } from '@shared/models'
import { BytesPipe } from '../shared-main'
@Component({
selector: 'my-preview-upload',
styleUrls: [ './preview-upload.component.scss' ],
templateUrl: './preview-upload.component.html',
providers: [
{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => PreviewUploadComponent),
multi: true
}
]
})
export class PreviewUploadComponent implements OnInit, ControlValueAccessor {
@Input() inputLabel: string
@Input() inputName: string
@Input() previewWidth: string
@Input() previewHeight: string
imageSrc: string
allowedExtensionsMessage = ''
maxSizeText: string
private serverConfig: HTMLServerConfig
private bytesPipe: BytesPipe
private file: Blob
constructor (
private serverService: ServerService
) {
this.bytesPipe = new BytesPipe()
this.maxSizeText = $localize`max size`
}
get videoImageExtensions () {
return this.serverConfig.video.image.extensions
}
get maxVideoImageSize () {
return this.serverConfig.video.image.size.max
}
get maxVideoImageSizeInBytes () {
return this.bytesPipe.transform(this.maxVideoImageSize)
}
ngOnInit () {
this.serverConfig = this.serverService.getHTMLConfig()
this.allowedExtensionsMessage = this.videoImageExtensions.join(', ')
}
onFileChanged (file: Blob) {
this.file = file
this.propagateChange(this.file)
this.updatePreview()
}
propagateChange = (_: any) => { /* empty */ }
writeValue (file: any) {
this.file = file
this.updatePreview()
}
registerOnChange (fn: (_: any) => void) {
this.propagateChange = fn
}
registerOnTouched () {
// Unused
}
private updatePreview () {
if (this.file) {
imageToDataURL(this.file).then(result => this.imageSrc = result)
}
}
}
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