10 files changed, 293 insertions, 8 deletions

diff --git a/client/src/app/shared/shared-forms/advanced-input-filter.component.ts b/client/src/app/shared/shared-forms/advanced-input-filter.component.ts
index c11f1ad1d..72cd6d460 100644
--- a/client/src/app/shared/shared-forms/advanced-input-filter.component.ts
+++ b/client/src/app/shared/shared-forms/advanced-input-filter.component.ts
@@ -18,6 +18,7 @@ const logger = debug('peertube:AdvancedInputFilterComponent')
 })
 export class AdvancedInputFilterComponent implements OnInit, AfterViewInit {
   @Input() filters: AdvancedInputFilter[] = []
+  @Input() emitOnInit = true
 
   @Output() search = new EventEmitter<string>()
 
@@ -42,7 +43,7 @@ export class AdvancedInputFilterComponent implements OnInit, AfterViewInit {
     this.viewInitialized = true
 
     // Init after view init to not send an event too early
-    if (this.emitSearchAfterViewInit) this.emitSearch()
+    if (this.emitOnInit && this.emitSearchAfterViewInit) this.emitSearch()
   }
 
   onInputSearch (event: Event) {
diff --git a/client/src/app/shared/shared-forms/select/index.ts b/client/src/app/shared/shared-forms/select/index.ts
index e387e1f48..a3d554ee2 100644
--- a/client/src/app/shared/shared-forms/select/index.ts
+++ b/client/src/app/shared/shared-forms/select/index.ts
@@ -1,5 +1,8 @@
+export * from './select-categories.component'
 export * from './select-channel.component'
+export * from './select-checkbox-all.component'
 export * from './select-checkbox.component'
 export * from './select-custom-value.component'
+export * from './select-languages.component'
 export * from './select-options.component'
 export * from './select-tags.component'
diff --git a/client/src/app/shared/shared-forms/select/select-categories.component.html b/client/src/app/shared/shared-forms/select/select-categories.component.html
new file mode 100644
index 000000000..2ec2f1264
--- /dev/null
+++ b/client/src/app/shared/shared-forms/select/select-categories.component.html
@@ -0,0 +1,8 @@
+<my-select-checkbox-all
+  [(ngModel)]="selectedCategories"
+  (ngModelChange)="onModelChange()"
+  [availableItems]="availableCategories"
+  i18n-placeholder placeholder="Add a new category"
+  [allGroupLabel]="allCategoriesGroup"
+>
+</my-select-checkbox-all>
diff --git a/client/src/app/shared/shared-forms/select/select-categories.component.ts b/client/src/app/shared/shared-forms/select/select-categories.component.ts
new file mode 100644
index 000000000..b921714ff
--- /dev/null
+++ b/client/src/app/shared/shared-forms/select/select-categories.component.ts
@@ -0,0 +1,71 @@
+
+import { Component, forwardRef, OnInit } from '@angular/core'
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms'
+import { ServerService } from '@app/core'
+import { SelectOptionsItem } from '../../../../types/select-options-item.model'
+import { ItemSelectCheckboxValue } from './select-checkbox.component'
+
+@Component({
+  selector: 'my-select-categories',
+  styleUrls: [ './select-shared.component.scss' ],
+  templateUrl: './select-categories.component.html',
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      useExisting: forwardRef(() => SelectCategoriesComponent),
+      multi: true
+    }
+  ]
+})
+export class SelectCategoriesComponent implements ControlValueAccessor, OnInit {
+  selectedCategories: ItemSelectCheckboxValue[] = []
+  availableCategories: SelectOptionsItem[] = []
+
+  allCategoriesGroup = $localize`All categories`
+
+  // Fix a bug on ng-select when we update items after we selected items
+  private toWrite: any
+  private loaded = false
+
+  constructor (
+    private server: ServerService
+  ) {
+
+  }
+
+  ngOnInit () {
+    this.server.getVideoCategories()
+      .subscribe(
+        categories => {
+          this.availableCategories = categories.map(c => ({ label: c.label, id: c.id + '', group: this.allCategoriesGroup }))
+          this.loaded = true
+          this.writeValue(this.toWrite)
+        }
+      )
+  }
+
+  propagateChange = (_: any) => { /* empty */ }
+
+  writeValue (categories: string[] | number[]) {
+    if (!this.loaded) {
+      this.toWrite = categories
+      return
+    }
+
+    this.selectedCategories = categories
+      ? categories.map(c => c + '')
+      : categories as string[]
+  }
+
+  registerOnChange (fn: (_: any) => void) {
+    this.propagateChange = fn
+  }
+
+  registerOnTouched () {
+    // Unused
+  }
+
+  onModelChange () {
+    this.propagateChange(this.selectedCategories)
+  }
+}
diff --git a/client/src/app/shared/shared-forms/select/select-checkbox-all.component.ts b/client/src/app/shared/shared-forms/select/select-checkbox-all.component.ts
new file mode 100644
index 000000000..ebf7b77a6
--- /dev/null
+++ b/client/src/app/shared/shared-forms/select/select-checkbox-all.component.ts
@@ -0,0 +1,115 @@
+import { Component, forwardRef, Input } from '@angular/core'
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms'
+import { Notifier } from '@app/core'
+import { SelectOptionsItem } from '../../../../types/select-options-item.model'
+import { ItemSelectCheckboxValue } from './select-checkbox.component'
+
+@Component({
+  selector: 'my-select-checkbox-all',
+  styleUrls: [ './select-shared.component.scss' ],
+
+  template: `
+  <my-select-checkbox
+    [(ngModel)]="selectedItems"
+    (ngModelChange)="onModelChange()"
+    [availableItems]="availableItems"
+    [selectableGroup]="true" [selectableGroupAsModel]="true"
+    [placeholder]="placeholder"
+    (focusout)="onBlur()"
+  >
+  </my-select-checkbox>`,
+
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      useExisting: forwardRef(() => SelectCheckboxAllComponent),
+      multi: true
+    }
+  ]
+})
+export class SelectCheckboxAllComponent implements ControlValueAccessor {
+  @Input() availableItems: SelectOptionsItem[] = []
+  @Input() allGroupLabel: string
+
+  @Input() placeholder: string
+  @Input() maxItems: number
+
+  selectedItems: ItemSelectCheckboxValue[]
+
+  constructor (
+    private notifier: Notifier
+  ) {
+
+  }
+
+  propagateChange = (_: any) => { /* empty */ }
+
+  writeValue (items: string[]) {
+    this.selectedItems = items
+      ? items.map(l => ({ id: l }))
+      : [ { group: this.allGroupLabel } ]
+  }
+
+  registerOnChange (fn: (_: any) => void) {
+    this.propagateChange = fn
+  }
+
+  registerOnTouched () {
+    // Unused
+  }
+
+  onModelChange () {
+    if (!this.isMaxConstraintValid()) return
+
+    this.propagateChange(this.buildOutputItems())
+  }
+
+  onBlur () {
+    // Automatically use "All languages" if the user did not select any language
+    if (Array.isArray(this.selectedItems) && this.selectedItems.length === 0) {
+      this.selectedItems = [ { group: this.allGroupLabel } ]
+    }
+  }
+
+  private isMaxConstraintValid () {
+    if (!this.maxItems) return true
+
+    const outputItems = this.buildOutputItems()
+    if (!outputItems) return true
+
+    if (outputItems.length >= this.maxItems) {
+      this.notifier.error($localize`You can't select more than ${this.maxItems} items`)
+
+      return false
+    }
+
+    return true
+  }
+
+  private buildOutputItems () {
+    if (!Array.isArray(this.selectedItems)) return undefined
+
+    // null means "All"
+    if (this.selectedItems.length === 0 || this.selectedItems.length === this.availableItems.length) {
+      return null
+    }
+
+    if (this.selectedItems.length === 1) {
+      const item = this.selectedItems[0]
+
+      const itemGroup = typeof item === 'string' || typeof item === 'number'
+        ? item
+        : item.group
+
+      if (itemGroup === this.allGroupLabel) return null
+    }
+
+    return this.selectedItems.map(l => {
+      if (typeof l === 'string' || typeof l === 'number') return l
+
+      if (l.group) return l.group
+
+      return l.id + ''
+    })
+  }
+}
diff --git a/client/src/app/shared/shared-forms/select/select-checkbox.component.html b/client/src/app/shared/shared-forms/select/select-checkbox.component.html
index f5af2932e..7b49a0c01 100644
--- a/client/src/app/shared/shared-forms/select/select-checkbox.component.html
+++ b/client/src/app/shared/shared-forms/select/select-checkbox.component.html
@@ -18,8 +18,6 @@
 
   groupBy="group"
   [compareWith]="compareFn"
-
-  [maxSelectedItems]="maxSelectedItems"
 >
 
   <ng-template ng-optgroup-tmp let-item="item" let-item$="item$" let-index="index">
diff --git a/client/src/app/shared/shared-forms/select/select-checkbox.component.ts b/client/src/app/shared/shared-forms/select/select-checkbox.component.ts
index c2523f15c..12f697628 100644
--- a/client/src/app/shared/shared-forms/select/select-checkbox.component.ts
+++ b/client/src/app/shared/shared-forms/select/select-checkbox.component.ts
@@ -2,7 +2,7 @@ import { Component, forwardRef, Input, OnInit } from '@angular/core'
 import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms'
 import { SelectOptionsItem } from '../../../../types/select-options-item.model'
 
-export type ItemSelectCheckboxValue = { id?: string | number, group?: string } | string
+export type ItemSelectCheckboxValue = { id?: string, group?: string } | string
 
 @Component({
   selector: 'my-select-checkbox',
@@ -21,7 +21,6 @@ export class SelectCheckboxComponent implements OnInit, ControlValueAccessor {
   @Input() selectedItems: ItemSelectCheckboxValue[] = []
   @Input() selectableGroup: boolean
   @Input() selectableGroupAsModel: boolean
-  @Input() maxSelectedItems: number
   @Input() placeholder: string
 
   ngOnInit () {
@@ -46,8 +45,6 @@ export class SelectCheckboxComponent implements OnInit, ControlValueAccessor {
     } else {
       this.selectedItems = items
     }
-
-    this.propagateChange(this.selectedItems)
   }
 
   registerOnChange (fn: (_: any) => void) {
@@ -63,7 +60,7 @@ export class SelectCheckboxComponent implements OnInit, ControlValueAccessor {
   }
 
   compareFn (item: SelectOptionsItem, selected: ItemSelectCheckboxValue) {
-    if (typeof selected === 'string') {
+    if (typeof selected === 'string' || typeof selected === 'number') {
       return item.id === selected
     }
 
diff --git a/client/src/app/shared/shared-forms/select/select-languages.component.html b/client/src/app/shared/shared-forms/select/select-languages.component.html
new file mode 100644
index 000000000..6eba26a56
--- /dev/null
+++ b/client/src/app/shared/shared-forms/select/select-languages.component.html
@@ -0,0 +1,9 @@
+<my-select-checkbox-all
+  [(ngModel)]="selectedLanguages"
+  (ngModelChange)="onModelChange()"
+  [availableItems]="availableLanguages"
+  [maxItems]="maxLanguages"
+  i18n-placeholder placeholder="Add a new language"
+  [allGroupLabel]="allLanguagesGroup"
+>
+</my-select-checkbox-all>
diff --git a/client/src/app/shared/shared-forms/select/select-languages.component.ts b/client/src/app/shared/shared-forms/select/select-languages.component.ts
new file mode 100644
index 000000000..742163ede
--- /dev/null
+++ b/client/src/app/shared/shared-forms/select/select-languages.component.ts
@@ -0,0 +1,74 @@
+import { Component, forwardRef, Input, OnInit } from '@angular/core'
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms'
+import { ServerService } from '@app/core'
+import { SelectOptionsItem } from '../../../../types/select-options-item.model'
+import { ItemSelectCheckboxValue } from './select-checkbox.component'
+
+@Component({
+  selector: 'my-select-languages',
+  styleUrls: [ './select-shared.component.scss' ],
+  templateUrl: './select-languages.component.html',
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      useExisting: forwardRef(() => SelectLanguagesComponent),
+      multi: true
+    }
+  ]
+})
+export class SelectLanguagesComponent implements ControlValueAccessor, OnInit {
+  @Input() maxLanguages: number
+
+  selectedLanguages: ItemSelectCheckboxValue[]
+  availableLanguages: SelectOptionsItem[] = []
+
+  allLanguagesGroup = $localize`All languages`
+
+  // Fix a bug on ng-select when we update items after we selected items
+  private toWrite: any
+  private loaded = false
+
+  constructor (
+    private server: ServerService
+  ) {
+
+  }
+
+  ngOnInit () {
+    this.server.getVideoLanguages()
+      .subscribe(
+        languages => {
+          this.availableLanguages = [ { label: $localize`Unknown language`, id: '_unknown', group: this.allLanguagesGroup } ]
+
+          this.availableLanguages = this.availableLanguages
+            .concat(languages.map(l => ({ label: l.label, id: l.id, group: this.allLanguagesGroup })))
+
+          this.loaded = true
+          this.writeValue(this.toWrite)
+        }
+      )
+  }
+
+  propagateChange = (_: any) => { /* empty */ }
+
+  writeValue (languages: ItemSelectCheckboxValue[]) {
+    if (!this.loaded) {
+      this.toWrite = languages
+      return
+    }
+
+    this.selectedLanguages = languages
+  }
+
+  registerOnChange (fn: (_: any) => void) {
+    this.propagateChange = fn
+  }
+
+  registerOnTouched () {
+    // Unused
+  }
+
+  onModelChange () {
+    this.propagateChange(this.selectedLanguages)
+  }
+}
diff --git a/client/src/app/shared/shared-forms/shared-form.module.ts b/client/src/app/shared/shared-forms/shared-form.module.ts
index 5417f7342..60c2f66ae 100644
--- a/client/src/app/shared/shared-forms/shared-form.module.ts
+++ b/client/src/app/shared/shared-forms/shared-form.module.ts
@@ -15,9 +15,12 @@ import { PeertubeCheckboxComponent } from './peertube-checkbox.component'
 import { PreviewUploadComponent } from './preview-upload.component'
 import { ReactiveFileComponent } from './reactive-file.component'
 import {
+  SelectCategoriesComponent,
   SelectChannelComponent,
+  SelectCheckboxAllComponent,
   SelectCheckboxComponent,
   SelectCustomValueComponent,
+  SelectLanguagesComponent,
   SelectOptionsComponent,
   SelectTagsComponent
 } from './select'
@@ -52,6 +55,9 @@ import { TimestampInputComponent } from './timestamp-input.component'
     SelectTagsComponent,
     SelectCheckboxComponent,
     SelectCustomValueComponent,
+    SelectLanguagesComponent,
+    SelectCategoriesComponent,
+    SelectCheckboxAllComponent,
 
     DynamicFormFieldComponent,
 
@@ -80,6 +86,9 @@ import { TimestampInputComponent } from './timestamp-input.component'
     SelectTagsComponent,
     SelectCheckboxComponent,
     SelectCustomValueComponent,
+    SelectLanguagesComponent,
+    SelectCategoriesComponent,
+    SelectCheckboxAllComponent,
 
     DynamicFormFieldComponent,