wrap the hotkeys component to allow templating :art:
[oweals/peertube.git] / client / src / app / shared / forms / form-reactive.ts
1 import { FormGroup } from '@angular/forms'
2 import { BuildFormArgument, BuildFormDefaultValues, FormValidatorService } from '@app/shared/forms/form-validators/form-validator.service'
3
4 export type FormReactiveErrors = { [ id: string ]: string }
5 export type FormReactiveValidationMessages = {
6   [ id: string ]: {
7     [ name: string ]: string
8   }
9 }
10
11 export abstract class FormReactive {
12   protected abstract formValidatorService: FormValidatorService
13   protected formChanged = false
14
15   form: FormGroup
16   formErrors: FormReactiveErrors
17   validationMessages: FormReactiveValidationMessages
18
19   buildForm (obj: BuildFormArgument, defaultValues: BuildFormDefaultValues = {}) {
20     const { formErrors, validationMessages, form } = this.formValidatorService.buildForm(obj, defaultValues)
21
22     this.form = form
23     this.formErrors = formErrors
24     this.validationMessages = validationMessages
25
26     this.form.valueChanges.subscribe(() => this.onValueChanged(false))
27   }
28
29   protected onValueChanged (forceCheck = false) {
30     for (const field in this.formErrors) {
31       // clear previous error message (if any)
32       this.formErrors[ field ] = ''
33       const control = this.form.get(field)
34
35       if (control.dirty) this.formChanged = true
36
37       // Don't care if dirty on force check
38       const isDirty = control.dirty || forceCheck === true
39       if (control && isDirty && !control.valid) {
40         const messages = this.validationMessages[ field ]
41         for (const key in control.errors) {
42           this.formErrors[ field ] += messages[ key ] + ' '
43         }
44       }
45     }
46   }
47
48   protected forceCheck () {
49     return this.onValueChanged(true)
50   }
51 }