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import { Directive, ElementRef, EventEmitter, Input, Optional, Output, ViewChild } from '@angular/core'; import { NgControl } from '@angular/forms'; import '@bimeister/pupakit.common'; import { distinctUntilSerializedChanged, filterNotNil, filterTruthy, isNil, shareReplayWithRefCount, } from '@bimeister/utilities'; import { BehaviorSubject, combineLatest } from 'rxjs'; import { distinctUntilChanged, map, take } from 'rxjs/operators'; import '../../types/textarea-counter-visibility-mode.type'; import '../../types/textarea-size.type'; import { InputBaseControlValueAccessor } from './input-base-control-value-accessor.abstract'; import * as i0 from "@angular/core"; import * as i1 from "@angular/forms"; const DEFAULT_MAX_ROWS = 5; const LARGE_TEXTAREA_VERTICAL_PADDINGS_PX = 24; const MEDIUM_TEXTAREA_VERTICAL_PADDINGS_PX = 16; export class TextareaBase extends InputBaseControlValueAccessor { constructor(ngControl) { super(ngControl); this.size = 'medium'; this.size$ = new BehaviorSubject('medium'); this.placeholder = ''; this.placeholder$ = new BehaviorSubject(''); this.autocomplete = false; this.autocomplete$ = new BehaviorSubject(false); this.isPatched = false; this.isPatched$ = new BehaviorSubject(false); this.minRows = 2; this.minRows$ = new BehaviorSubject(this.minRows); this.minHeightPx$ = combineLatest([this.minRows$, this.size$]).pipe(map(([minRows, size]) => TextareaBase.getHeightPxByRowsCount(this.lineHeightSourceRef, minRows, size))); this.maxRows = DEFAULT_MAX_ROWS; this.maxRows$ = new BehaviorSubject(this.maxRows); this.maxHeightPx$ = combineLatest([ this.minRows$, this.maxRows$, this.size$, ]).pipe(map(([minRows, maxRows, size]) => { if (isNil(maxRows)) { return null; } const rowsCount = minRows > maxRows ? minRows : maxRows; return TextareaBase.getHeightPxByRowsCount(this.lineHeightSourceRef, rowsCount, size); })); this.maxLength = null; this.maxLength$ = new BehaviorSubject(null); this.counterVisibility = 'always'; this.counterVisibility$ = new BehaviorSubject('always'); this.focus = new EventEmitter(); this.blur = new EventEmitter(); this.enterKeyPrevented = false; this.enterKeyPrevented$ = new BehaviorSubject(false); this.isInvalid$ = combineLatest([ this.isDisabled$, this.isPatched$, this.isValid$, this.isTouched$, ]).pipe(distinctUntilSerializedChanged(), map(([isDisabled, isPatched, isValid, isTouched]) => (isTouched || isPatched) && !isValid && !isDisabled)); this.valueLength$ = this.value$.pipe(filterNotNil(), map((currentValue) => currentValue?.length ?? 0)); this.counterValue$ = combineLatest([this.maxLength$, this.valueLength$]).pipe(map(([maxLength, valueLength]) => `${valueLength}/${maxLength}`)); this.isCounterVisible$ = combineLatest([ this.counterVisibility$, this.isFocused$, this.valueLength$, ]).pipe(map(([counterVisibilityMode, isFocused, valueLength]) => { if (counterVisibilityMode === 'onfocus') { return isFocused; } if (counterVisibilityMode === 'filled') { return valueLength > 0; } return true; }), distinctUntilChanged(), shareReplayWithRefCount()); } setValue(value) { const serializedValue = isNil(value) ? '' : value; this.value$.next(serializedValue); } ngOnChanges(changes) { this.processSizeChange(changes?.size); this.processPlaceholderChange(changes?.placeholder); this.processAutocompleteChange(changes?.autocomplete); this.processIsPatchedChange(changes?.isPatched); this.processMaxLengthChange(changes?.maxLength); this.processMaxRowsChange(changes?.maxRows); this.processMinRowsChange(changes?.minRows); this.processCounterVisibilityChange(changes?.counterVisibility); this.processEnterKeyDisabledChange(changes?.enterKeyPrevented); } emitFocusEvent(focusEvent) { this.isFocused$.next(true); this.focus.emit(focusEvent); } emitBlurEvent(blurEvent) { this.isFocused$.next(false); this.blur.emit(blurEvent); } preventEnterKeyEvent(event) { this.enterKeyPrevented$.pipe(take(1), filterTruthy()).subscribe(() => event.preventDefault()); } focusOnTextareaElement() { const textareaElement = this.textareaElementRef.nativeElement; textareaElement.focus(); } processMouseDown(event) { if (event.target === this.textareaElementRef.nativeElement) { return; } event.preventDefault(); } processSizeChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue)) { return; } this.size$.next(updatedValue); } processPlaceholderChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue)) { return; } this.placeholder$.next(updatedValue); } processAutocompleteChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue)) { return; } this.autocomplete$.next(updatedValue); } processIsPatchedChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue)) { return; } this.isPatched$.next(updatedValue); } processMaxLengthChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue)) { return; } this.maxLength$.next(updatedValue); } processMaxRowsChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue) || !Number.isInteger(updatedValue)) { return; } this.maxRows$.next(updatedValue); } processMinRowsChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue) || !Number.isInteger(updatedValue)) { return; } this.minRows$.next(updatedValue); } processCounterVisibilityChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue)) { return; } this.counterVisibility$.next(updatedValue); } processEnterKeyDisabledChange(change) { const updatedValue = change?.currentValue; if (isNil(updatedValue)) { return; } this.enterKeyPrevented$.next(updatedValue); } static getHeightPxByRowsCount(lineHeightSourceRef, rowsCount, size) { const verticalPaddingsPx = size === 'large' ? LARGE_TEXTAREA_VERTICAL_PADDINGS_PX : MEDIUM_TEXTAREA_VERTICAL_PADDINGS_PX; const computedStyles = getComputedStyle(lineHeightSourceRef.nativeElement); const lineHeightPx = Number.parseFloat(computedStyles.lineHeight); return lineHeightPx * rowsCount + verticalPaddingsPx; } } TextareaBase.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.12", ngImport: i0, type: TextareaBase, deps: [{ token: i1.NgControl, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); TextareaBase.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "14.2.12", type: TextareaBase, inputs: { size: "size", placeholder: "placeholder", autocomplete: "autocomplete", isPatched: "isPatched", minRows: "minRows", maxRows: "maxRows", maxLength: "maxLength", counterVisibility: "counterVisibility", enterKeyPrevented: "enterKeyPrevented" }, outputs: { focus: "focus", blur: "blur" }, viewQueries: [{ propertyName: "lineHeightSourceRef", first: true, predicate: ["lineHeightSource"], descendants: true, static: true }, { propertyName: "textareaElementRef", first: true, predicate: ["textarea"], descendants: true }], usesInheritance: true, usesOnChanges: true, ngImport: i0 }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.12", ngImport: i0, type: TextareaBase, decorators: [{ type: Directive }], ctorParameters: function () { return [{ type: i1.NgControl, decorators: [{ type: Optional }] }]; }, propDecorators: { lineHeightSourceRef: [{ type: ViewChild, args: ['lineHeightSource', { static: true }] }], textareaElementRef: [{ type: ViewChild, args: ['textarea'] }], size: [{ type: Input }], placeholder: [{ type: Input }], autocomplete: [{ type: Input }], isPatched: [{ type: Input }], minRows: [{ type: Input }], maxRows: [{ type: Input }], maxLength: [{ type: Input }], counterVisibility: [{ type: Input }], focus: [{ type: Output }], blur: [{ type: Output }], enterKeyPrevented: [{ type: Input }] } }); //# 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{ Directive, ElementRef, EventEmitter, Input, OnChanges, Optional, Output, ViewChild } from '@angular/core';\nimport { NgControl } from '@angular/forms';\nimport { ComponentChange, ComponentChanges } from '@bimeister/pupakit.common';\nimport {\n  distinctUntilSerializedChanged,\n  filterNotNil,\n  filterTruthy,\n  isNil,\n  Nullable,\n  shareReplayWithRefCount,\n} from '@bimeister/utilities';\nimport { BehaviorSubject, combineLatest, Observable } from 'rxjs';\nimport { distinctUntilChanged, map, take } from 'rxjs/operators';\nimport { TextareaCounterVisibility } from '../../types/textarea-counter-visibility-mode.type';\nimport { TextareaSize } from '../../types/textarea-size.type';\nimport { InputBaseControlValueAccessor } from './input-base-control-value-accessor.abstract';\n\nconst DEFAULT_MAX_ROWS: number = 5;\nconst LARGE_TEXTAREA_VERTICAL_PADDINGS_PX: number = 24;\nconst MEDIUM_TEXTAREA_VERTICAL_PADDINGS_PX: number = 16;\n\n@Directive()\nexport abstract class TextareaBase extends InputBaseControlValueAccessor<string> implements OnChanges {\n  @ViewChild('lineHeightSource', { static: true })\n  protected readonly lineHeightSourceRef: ElementRef<HTMLTextAreaElement>;\n\n  @ViewChild('textarea')\n  protected readonly textareaElementRef: ElementRef<HTMLTextAreaElement>;\n\n  @Input() public size: TextareaSize = 'medium';\n  public readonly size$: BehaviorSubject<TextareaSize> = new BehaviorSubject<TextareaSize>('medium');\n\n  @Input() public readonly placeholder: string = '';\n  public readonly placeholder$: BehaviorSubject<string> = new BehaviorSubject<string>('');\n\n  @Input() public readonly autocomplete: boolean = false;\n  public readonly autocomplete$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);\n\n  @Input() public readonly isPatched: boolean = false;\n  public readonly isPatched$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);\n\n  @Input() public minRows: number = 2;\n  private readonly minRows$: BehaviorSubject<number> = new BehaviorSubject<number>(this.minRows);\n  public readonly minHeightPx$: Observable<number> = combineLatest([this.minRows$, this.size$]).pipe(\n    map(([minRows, size]: [number, TextareaSize]) =>\n      TextareaBase.getHeightPxByRowsCount(this.lineHeightSourceRef, minRows, size)\n    )\n  );\n\n  @Input() public maxRows: number = DEFAULT_MAX_ROWS;\n  private readonly maxRows$: BehaviorSubject<Nullable<number>> = new BehaviorSubject<Nullable<number>>(this.maxRows);\n  public readonly maxHeightPx$: Observable<Nullable<number>> = combineLatest([\n    this.minRows$,\n    this.maxRows$,\n    this.size$,\n  ]).pipe(\n    map(([minRows, maxRows, size]: [number, Nullable<number>, TextareaSize]) => {\n      if (isNil(maxRows)) {\n        return null;\n      }\n\n      const rowsCount: number = minRows > maxRows ? minRows : maxRows;\n      return TextareaBase.getHeightPxByRowsCount(this.lineHeightSourceRef, rowsCount, size);\n    })\n  );\n\n  @Input() public maxLength: Nullable<number> = null;\n  public readonly maxLength$: BehaviorSubject<Nullable<number>> = new BehaviorSubject<Nullable<number>>(null);\n\n  @Input() public counterVisibility: TextareaCounterVisibility = 'always';\n  public readonly counterVisibility$: BehaviorSubject<TextareaCounterVisibility> =\n    new BehaviorSubject<TextareaCounterVisibility>('always');\n\n  @Output() private readonly focus: EventEmitter<FocusEvent> = new EventEmitter<FocusEvent>();\n  @Output() private readonly blur: EventEmitter<FocusEvent> = new EventEmitter<FocusEvent>();\n\n  @Input() public enterKeyPrevented: boolean = false;\n  public readonly enterKeyPrevented$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);\n\n  public readonly isInvalid$: Observable<boolean> = combineLatest([\n    this.isDisabled$,\n    this.isPatched$,\n    this.isValid$,\n    this.isTouched$,\n  ]).pipe(\n    distinctUntilSerializedChanged(),\n    map(\n      ([isDisabled, isPatched, isValid, isTouched]: [boolean, boolean, boolean, boolean]) =>\n        (isTouched || isPatched) && !isValid && !isDisabled\n    )\n  );\n\n  private readonly valueLength$: Observable<number> = this.value$.pipe(\n    filterNotNil(),\n    map((currentValue: string) => currentValue?.length ?? 0)\n  );\n\n  public readonly counterValue$: Observable<string> = combineLatest([this.maxLength$, this.valueLength$]).pipe(\n    map(([maxLength, valueLength]: [number, number]) => `${valueLength}/${maxLength}`)\n  );\n\n  public readonly isCounterVisible$: Observable<boolean> = combineLatest([\n    this.counterVisibility$,\n    this.isFocused$,\n    this.valueLength$,\n  ]).pipe(\n    map(([counterVisibilityMode, isFocused, valueLength]: [TextareaCounterVisibility, boolean, number]) => {\n      if (counterVisibilityMode === 'onfocus') {\n        return isFocused;\n      }\n\n      if (counterVisibilityMode === 'filled') {\n        return valueLength > 0;\n      }\n\n      return true;\n    }),\n    distinctUntilChanged(),\n    shareReplayWithRefCount()\n  );\n\n  constructor(@Optional() ngControl: NgControl) {\n    super(ngControl);\n  }\n\n  protected setValue(value: Nullable<string>): void {\n    const serializedValue: string = isNil(value) ? '' : value;\n    this.value$.next(serializedValue);\n  }\n\n  public ngOnChanges(changes: ComponentChanges<this>): void {\n    this.processSizeChange(changes?.size);\n    this.processPlaceholderChange(changes?.placeholder);\n    this.processAutocompleteChange(changes?.autocomplete);\n    this.processIsPatchedChange(changes?.isPatched);\n\n    this.processMaxLengthChange(changes?.maxLength);\n    this.processMaxRowsChange(changes?.maxRows);\n    this.processMinRowsChange(changes?.minRows);\n    this.processCounterVisibilityChange(changes?.counterVisibility);\n    this.processEnterKeyDisabledChange(changes?.enterKeyPrevented);\n  }\n\n  public emitFocusEvent(focusEvent: FocusEvent): void {\n    this.isFocused$.next(true);\n    this.focus.emit(focusEvent);\n  }\n\n  public emitBlurEvent(blurEvent: FocusEvent): void {\n    this.isFocused$.next(false);\n    this.blur.emit(blurEvent);\n  }\n\n  public preventEnterKeyEvent(event: MouseEvent): void {\n    this.enterKeyPrevented$.pipe(take(1), filterTruthy()).subscribe(() => event.preventDefault());\n  }\n\n  public focusOnTextareaElement(): void {\n    const textareaElement: HTMLTextAreaElement = this.textareaElementRef.nativeElement;\n    textareaElement.focus();\n  }\n\n  public processMouseDown(event: MouseEvent): void {\n    if (event.target === this.textareaElementRef.nativeElement) {\n      return;\n    }\n    event.preventDefault();\n  }\n\n  private processSizeChange(change: ComponentChange<this, TextareaSize>): void {\n    const updatedValue: TextareaSize | undefined = change?.currentValue;\n\n    if (isNil(updatedValue)) {\n      return;\n    }\n\n    this.size$.next(updatedValue);\n  }\n\n  private processPlaceholderChange(change: ComponentChange<this, string>): void {\n    const updatedValue: string | undefined = change?.currentValue;\n\n    if (isNil(updatedValue)) {\n      return;\n    }\n\n    this.placeholder$.next(updatedValue);\n  }\n\n  private processAutocompleteChange(change: ComponentChange<this, boolean>): void {\n    const updatedValue: boolean | undefined = change?.currentValue;\n\n    if (isNil(updatedValue)) {\n      return;\n    }\n\n    this.autocomplete$.next(updatedValue);\n  }\n\n  private processIsPatchedChange(change: ComponentChange<this, boolean>): void {\n    const updatedValue: boolean | undefined = change?.currentValue;\n\n    if (isNil(updatedValue)) {\n      return;\n    }\n\n    this.isPatched$.next(updatedValue);\n  }\n\n  private processMaxLengthChange(change: ComponentChange<this, Nullable<number>>): void {\n    const updatedValue: Nullable<number> = change?.currentValue;\n\n    if (isNil(updatedValue)) {\n      return;\n    }\n    this.maxLength$.next(updatedValue);\n  }\n\n  private processMaxRowsChange(change: ComponentChange<this, Nullable<number>>): void {\n    const updatedValue: Nullable<number> = change?.currentValue;\n\n    if (isNil(updatedValue) || !Number.isInteger(updatedValue)) {\n      return;\n    }\n\n    this.maxRows$.next(updatedValue);\n  }\n\n  private processMinRowsChange(change: ComponentChange<this, Nullable<number>>): void {\n    const updatedValue: Nullable<number> = change?.currentValue;\n\n    if (isNil(updatedValue) || !Number.isInteger(updatedValue)) {\n      return;\n    }\n\n    this.minRows$.next(updatedValue);\n  }\n\n  private processCounterVisibilityChange(change: ComponentChange<this, TextareaCounterVisibility>): void {\n    const updatedValue: TextareaCounterVisibility = change?.currentValue;\n\n    if (isNil(updatedValue)) {\n      return;\n    }\n\n    this.counterVisibility$.next(updatedValue);\n  }\n\n  private processEnterKeyDisabledChange(change: ComponentChange<this, boolean>): void {\n    const updatedValue: boolean = change?.currentValue;\n\n    if (isNil(updatedValue)) {\n      return;\n    }\n\n    this.enterKeyPrevented$.next(updatedValue);\n  }\n\n  private static getHeightPxByRowsCount(\n    lineHeightSourceRef: ElementRef<HTMLTextAreaElement>,\n    rowsCount: number,\n    size: TextareaSize\n  ): number {\n    const verticalPaddingsPx: number =\n      size === 'large' ? LARGE_TEXTAREA_VERTICAL_PADDINGS_PX : MEDIUM_TEXTAREA_VERTICAL_PADDINGS_PX;\n\n    const computedStyles: CSSStyleDeclaration = getComputedStyle(lineHeightSourceRef.nativeElement);\n    const lineHeightPx: number = Number.parseFloat(computedStyles.lineHeight);\n\n    return lineHeightPx * rowsCount + verticalPaddingsPx;\n  }\n}\n"]}