| /** |
| * @license |
| * Copyright Google LLC All Rights Reserved. |
| * |
| * Use of this source code is governed by an MIT-style license that can be |
| * found in the LICENSE file at https://angular.io/license |
| */ |
| import { coerceBooleanProperty } from '@angular/cdk/coercion'; |
| import { DOWN_ARROW } from '@angular/cdk/keycodes'; |
| import { Directive, ElementRef, EventEmitter, Inject, Input, Optional, Output, } from '@angular/core'; |
| import { DateAdapter, MAT_DATE_FORMATS, } from '@angular/material/core'; |
| import { Subscription, Subject } from 'rxjs'; |
| import { createMissingDateImplError } from './datepicker-errors'; |
| /** |
| * An event used for datepicker input and change events. We don't always have access to a native |
| * input or change event because the event may have been triggered by the user clicking on the |
| * calendar popup. For consistency, we always use MatDatepickerInputEvent instead. |
| */ |
| export class MatDatepickerInputEvent { |
| constructor( |
| /** Reference to the datepicker input component that emitted the event. */ |
| target, |
| /** Reference to the native input element associated with the datepicker input. */ |
| targetElement) { |
| this.target = target; |
| this.targetElement = targetElement; |
| this.value = this.target.value; |
| } |
| } |
| /** Base class for datepicker inputs. */ |
| export class MatDatepickerInputBase { |
| constructor(_elementRef, _dateAdapter, _dateFormats) { |
| this._elementRef = _elementRef; |
| this._dateAdapter = _dateAdapter; |
| this._dateFormats = _dateFormats; |
| /** Emits when a `change` event is fired on this `<input>`. */ |
| this.dateChange = new EventEmitter(); |
| /** Emits when an `input` event is fired on this `<input>`. */ |
| this.dateInput = new EventEmitter(); |
| /** Emits when the internal state has changed */ |
| this.stateChanges = new Subject(); |
| this._onTouched = () => { }; |
| this._validatorOnChange = () => { }; |
| this._cvaOnChange = () => { }; |
| this._valueChangesSubscription = Subscription.EMPTY; |
| this._localeSubscription = Subscription.EMPTY; |
| /** The form control validator for whether the input parses. */ |
| this._parseValidator = () => { |
| return this._lastValueValid ? |
| null : { 'matDatepickerParse': { 'text': this._elementRef.nativeElement.value } }; |
| }; |
| /** The form control validator for the date filter. */ |
| this._filterValidator = (control) => { |
| const controlValue = this._dateAdapter.getValidDateOrNull(this._dateAdapter.deserialize(control.value)); |
| return !controlValue || this._matchesFilter(controlValue) ? |
| null : { 'matDatepickerFilter': true }; |
| }; |
| /** The form control validator for the min date. */ |
| this._minValidator = (control) => { |
| const controlValue = this._dateAdapter.getValidDateOrNull(this._dateAdapter.deserialize(control.value)); |
| const min = this._getMinDate(); |
| return (!min || !controlValue || |
| this._dateAdapter.compareDate(min, controlValue) <= 0) ? |
| null : { 'matDatepickerMin': { 'min': min, 'actual': controlValue } }; |
| }; |
| /** The form control validator for the max date. */ |
| this._maxValidator = (control) => { |
| const controlValue = this._dateAdapter.getValidDateOrNull(this._dateAdapter.deserialize(control.value)); |
| const max = this._getMaxDate(); |
| return (!max || !controlValue || |
| this._dateAdapter.compareDate(max, controlValue) >= 0) ? |
| null : { 'matDatepickerMax': { 'max': max, 'actual': controlValue } }; |
| }; |
| /** Whether the last value set on the input was valid. */ |
| this._lastValueValid = false; |
| if (typeof ngDevMode === 'undefined' || ngDevMode) { |
| if (!this._dateAdapter) { |
| throw createMissingDateImplError('DateAdapter'); |
| } |
| if (!this._dateFormats) { |
| throw createMissingDateImplError('MAT_DATE_FORMATS'); |
| } |
| } |
| // Update the displayed date when the locale changes. |
| this._localeSubscription = _dateAdapter.localeChanges.subscribe(() => { |
| this._assignValueProgrammatically(this.value); |
| }); |
| } |
| /** The value of the input. */ |
| get value() { |
| return this._model ? this._getValueFromModel(this._model.selection) : this._pendingValue; |
| } |
| set value(value) { |
| this._assignValueProgrammatically(value); |
| } |
| /** Whether the datepicker-input is disabled. */ |
| get disabled() { return !!this._disabled || this._parentDisabled(); } |
| set disabled(value) { |
| const newValue = coerceBooleanProperty(value); |
| const element = this._elementRef.nativeElement; |
| if (this._disabled !== newValue) { |
| this._disabled = newValue; |
| this.stateChanges.next(undefined); |
| } |
| // We need to null check the `blur` method, because it's undefined during SSR. |
| // In Ivy static bindings are invoked earlier, before the element is attached to the DOM. |
| // This can cause an error to be thrown in some browsers (IE/Edge) which assert that the |
| // element has been inserted. |
| if (newValue && this._isInitialized && element.blur) { |
| // Normally, native input elements automatically blur if they turn disabled. This behavior |
| // is problematic, because it would mean that it triggers another change detection cycle, |
| // which then causes a changed after checked error if the input element was focused before. |
| element.blur(); |
| } |
| } |
| /** Gets the base validator functions. */ |
| _getValidators() { |
| return [this._parseValidator, this._minValidator, this._maxValidator, this._filterValidator]; |
| } |
| /** Registers a date selection model with the input. */ |
| _registerModel(model) { |
| this._model = model; |
| this._valueChangesSubscription.unsubscribe(); |
| if (this._pendingValue) { |
| this._assignValue(this._pendingValue); |
| } |
| this._valueChangesSubscription = this._model.selectionChanged.subscribe(event => { |
| if (this._shouldHandleChangeEvent(event)) { |
| const value = this._getValueFromModel(event.selection); |
| this._lastValueValid = this._isValidValue(value); |
| this._cvaOnChange(value); |
| this._onTouched(); |
| this._formatValue(value); |
| this.dateInput.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement)); |
| this.dateChange.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement)); |
| } |
| }); |
| } |
| ngAfterViewInit() { |
| this._isInitialized = true; |
| } |
| ngOnChanges(changes) { |
| if (dateInputsHaveChanged(changes, this._dateAdapter)) { |
| this.stateChanges.next(undefined); |
| } |
| } |
| ngOnDestroy() { |
| this._valueChangesSubscription.unsubscribe(); |
| this._localeSubscription.unsubscribe(); |
| this.stateChanges.complete(); |
| } |
| /** @docs-private */ |
| registerOnValidatorChange(fn) { |
| this._validatorOnChange = fn; |
| } |
| /** @docs-private */ |
| validate(c) { |
| return this._validator ? this._validator(c) : null; |
| } |
| // Implemented as part of ControlValueAccessor. |
| writeValue(value) { |
| this._assignValueProgrammatically(value); |
| } |
| // Implemented as part of ControlValueAccessor. |
| registerOnChange(fn) { |
| this._cvaOnChange = fn; |
| } |
| // Implemented as part of ControlValueAccessor. |
| registerOnTouched(fn) { |
| this._onTouched = fn; |
| } |
| // Implemented as part of ControlValueAccessor. |
| setDisabledState(isDisabled) { |
| this.disabled = isDisabled; |
| } |
| _onKeydown(event) { |
| const isAltDownArrow = event.altKey && event.keyCode === DOWN_ARROW; |
| if (isAltDownArrow && !this._elementRef.nativeElement.readOnly) { |
| this._openPopup(); |
| event.preventDefault(); |
| } |
| } |
| _onInput(value) { |
| const lastValueWasValid = this._lastValueValid; |
| let date = this._dateAdapter.parse(value, this._dateFormats.parse.dateInput); |
| this._lastValueValid = this._isValidValue(date); |
| date = this._dateAdapter.getValidDateOrNull(date); |
| if (!this._dateAdapter.sameDate(date, this.value)) { |
| this._assignValue(date); |
| this._cvaOnChange(date); |
| this.dateInput.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement)); |
| } |
| else { |
| // Call the CVA change handler for invalid values |
| // since this is what marks the control as dirty. |
| if (value && !this.value) { |
| this._cvaOnChange(date); |
| } |
| if (lastValueWasValid !== this._lastValueValid) { |
| this._validatorOnChange(); |
| } |
| } |
| } |
| _onChange() { |
| this.dateChange.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement)); |
| } |
| /** Handles blur events on the input. */ |
| _onBlur() { |
| // Reformat the input only if we have a valid value. |
| if (this.value) { |
| this._formatValue(this.value); |
| } |
| this._onTouched(); |
| } |
| /** Formats a value and sets it on the input element. */ |
| _formatValue(value) { |
| this._elementRef.nativeElement.value = |
| value ? this._dateAdapter.format(value, this._dateFormats.display.dateInput) : ''; |
| } |
| /** Assigns a value to the model. */ |
| _assignValue(value) { |
| // We may get some incoming values before the model was |
| // assigned. Save the value so that we can assign it later. |
| if (this._model) { |
| this._assignValueToModel(value); |
| this._pendingValue = null; |
| } |
| else { |
| this._pendingValue = value; |
| } |
| } |
| /** Whether a value is considered valid. */ |
| _isValidValue(value) { |
| return !value || this._dateAdapter.isValid(value); |
| } |
| /** |
| * Checks whether a parent control is disabled. This is in place so that it can be overridden |
| * by inputs extending this one which can be placed inside of a group that can be disabled. |
| */ |
| _parentDisabled() { |
| return false; |
| } |
| /** Programmatically assigns a value to the input. */ |
| _assignValueProgrammatically(value) { |
| value = this._dateAdapter.deserialize(value); |
| this._lastValueValid = this._isValidValue(value); |
| value = this._dateAdapter.getValidDateOrNull(value); |
| this._assignValue(value); |
| this._formatValue(value); |
| } |
| /** Gets whether a value matches the current date filter. */ |
| _matchesFilter(value) { |
| const filter = this._getDateFilter(); |
| return !filter || filter(value); |
| } |
| } |
| MatDatepickerInputBase.decorators = [ |
| { type: Directive } |
| ]; |
| MatDatepickerInputBase.ctorParameters = () => [ |
| { type: ElementRef }, |
| { type: DateAdapter, decorators: [{ type: Optional }] }, |
| { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_FORMATS,] }] } |
| ]; |
| MatDatepickerInputBase.propDecorators = { |
| value: [{ type: Input }], |
| disabled: [{ type: Input }], |
| dateChange: [{ type: Output }], |
| dateInput: [{ type: Output }] |
| }; |
| /** |
| * Checks whether the `SimpleChanges` object from an `ngOnChanges` |
| * callback has any changes, accounting for date objects. |
| */ |
| export function dateInputsHaveChanged(changes, adapter) { |
| const keys = Object.keys(changes); |
| for (let key of keys) { |
| const { previousValue, currentValue } = changes[key]; |
| if (adapter.isDateInstance(previousValue) && adapter.isDateInstance(currentValue)) { |
| if (!adapter.sameDate(previousValue, currentValue)) { |
| return true; |
| } |
| } |
| else { |
| return true; |
| } |
| } |
| return false; |
| } |
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {BooleanInput, coerceBooleanProperty} from '@angular/cdk/coercion';\nimport {DOWN_ARROW} from '@angular/cdk/keycodes';\nimport {\n  Directive,\n  ElementRef,\n  EventEmitter,\n  Inject,\n  Input,\n  OnDestroy,\n  Optional,\n  Output,\n  AfterViewInit,\n  OnChanges,\n  SimpleChanges,\n} from '@angular/core';\nimport {\n  AbstractControl,\n  ControlValueAccessor,\n  ValidationErrors,\n  Validator,\n  ValidatorFn,\n} from '@angular/forms';\nimport {\n  DateAdapter,\n  MAT_DATE_FORMATS,\n  MatDateFormats,\n} from '@angular/material/core';\nimport {Subscription, Subject} from 'rxjs';\nimport {createMissingDateImplError} from './datepicker-errors';\nimport {\n  ExtractDateTypeFromSelection,\n  MatDateSelectionModel,\n  DateSelectionModelChange,\n} from './date-selection-model';\n\n/**\n * An event used for datepicker input and change events. We don't always have access to a native\n * input or change event because the event may have been triggered by the user clicking on the\n * calendar popup. For consistency, we always use MatDatepickerInputEvent instead.\n */\nexport class MatDatepickerInputEvent<D, S = unknown> {\n  /** The new value for the target datepicker input. */\n  value: D | null;\n\n  constructor(\n      /** Reference to the datepicker input component that emitted the event. */\n      public target: MatDatepickerInputBase<S, D>,\n      /** Reference to the native input element associated with the datepicker input. */\n      public targetElement: HTMLElement) {\n    this.value = this.target.value;\n  }\n}\n\n/** Function that can be used to filter out dates from a calendar. */\nexport type DateFilterFn<D> = (date: D | null) => boolean;\n\n/** Base class for datepicker inputs. */\n@Directive()\nexport abstract class MatDatepickerInputBase<S, D = ExtractDateTypeFromSelection<S>>\n  implements ControlValueAccessor, AfterViewInit, OnChanges, OnDestroy, Validator {\n\n  /** Whether the component has been initialized. */\n  private _isInitialized: boolean;\n\n  /** The value of the input. */\n  @Input()\n  get value(): D | null {\n    return this._model ? this._getValueFromModel(this._model.selection) : this._pendingValue;\n  }\n  set value(value: D | null) {\n    this._assignValueProgrammatically(value);\n  }\n  protected _model: MatDateSelectionModel<S, D> | undefined;\n\n  /** Whether the datepicker-input is disabled. */\n  @Input()\n  get disabled(): boolean { return !!this._disabled || this._parentDisabled(); }\n  set disabled(value: boolean) {\n    const newValue = coerceBooleanProperty(value);\n    const element = this._elementRef.nativeElement;\n\n    if (this._disabled !== newValue) {\n      this._disabled = newValue;\n      this.stateChanges.next(undefined);\n    }\n\n    // We need to null check the `blur` method, because it's undefined during SSR.\n    // In Ivy static bindings are invoked earlier, before the element is attached to the DOM.\n    // This can cause an error to be thrown in some browsers (IE/Edge) which assert that the\n    // element has been inserted.\n    if (newValue && this._isInitialized && element.blur) {\n      // Normally, native input elements automatically blur if they turn disabled. This behavior\n      // is problematic, because it would mean that it triggers another change detection cycle,\n      // which then causes a changed after checked error if the input element was focused before.\n      element.blur();\n    }\n  }\n  private _disabled: boolean;\n\n  /** Emits when a `change` event is fired on this `<input>`. */\n  @Output() readonly dateChange: EventEmitter<MatDatepickerInputEvent<D, S>> =\n      new EventEmitter<MatDatepickerInputEvent<D, S>>();\n\n  /** Emits when an `input` event is fired on this `<input>`. */\n  @Output() readonly dateInput: EventEmitter<MatDatepickerInputEvent<D, S>> =\n      new EventEmitter<MatDatepickerInputEvent<D, S>>();\n\n  /** Emits when the internal state has changed */\n  stateChanges = new Subject<void>();\n\n  _onTouched = () => {};\n  _validatorOnChange = () => {};\n\n  private _cvaOnChange: (value: any) => void = () => {};\n  private _valueChangesSubscription = Subscription.EMPTY;\n  private _localeSubscription = Subscription.EMPTY;\n\n  /**\n   * Since the value is kept on the model which is assigned in an Input,\n   * we might get a value before we have a model. This property keeps track\n   * of the value until we have somewhere to assign it.\n   */\n  private _pendingValue: D | null;\n\n  /** The form control validator for whether the input parses. */\n  private _parseValidator: ValidatorFn = (): ValidationErrors | null => {\n    return this._lastValueValid ?\n        null : {'matDatepickerParse': {'text': this._elementRef.nativeElement.value}};\n  }\n\n  /** The form control validator for the date filter. */\n  private _filterValidator: ValidatorFn = (control: AbstractControl): ValidationErrors | null => {\n    const controlValue = this._dateAdapter.getValidDateOrNull(\n      this._dateAdapter.deserialize(control.value));\n    return !controlValue || this._matchesFilter(controlValue) ?\n        null : {'matDatepickerFilter': true};\n  }\n\n  /** The form control validator for the min date. */\n  private _minValidator: ValidatorFn = (control: AbstractControl): ValidationErrors | null => {\n    const controlValue = this._dateAdapter.getValidDateOrNull(\n      this._dateAdapter.deserialize(control.value));\n    const min = this._getMinDate();\n    return (!min || !controlValue ||\n        this._dateAdapter.compareDate(min, controlValue) <= 0) ?\n        null : {'matDatepickerMin': {'min': min, 'actual': controlValue}};\n  }\n\n  /** The form control validator for the max date. */\n  private _maxValidator: ValidatorFn = (control: AbstractControl): ValidationErrors | null => {\n    const controlValue = this._dateAdapter.getValidDateOrNull(\n      this._dateAdapter.deserialize(control.value));\n    const max = this._getMaxDate();\n    return (!max || !controlValue ||\n        this._dateAdapter.compareDate(max, controlValue) >= 0) ?\n        null : {'matDatepickerMax': {'max': max, 'actual': controlValue}};\n  }\n\n  /** Gets the base validator functions. */\n  protected _getValidators(): ValidatorFn[] {\n    return [this._parseValidator, this._minValidator, this._maxValidator, this._filterValidator];\n  }\n\n  /** Gets the minimum date for the input. Used for validation. */\n  abstract _getMinDate(): D | null;\n\n  /** Gets the maximum date for the input. Used for validation. */\n  abstract _getMaxDate(): D | null;\n\n  /** Gets the date filter function. Used for validation. */\n  protected abstract _getDateFilter(): DateFilterFn<D> | undefined;\n\n  /** Registers a date selection model with the input. */\n  _registerModel(model: MatDateSelectionModel<S, D>): void {\n    this._model = model;\n    this._valueChangesSubscription.unsubscribe();\n\n    if (this._pendingValue) {\n      this._assignValue(this._pendingValue);\n    }\n\n    this._valueChangesSubscription = this._model.selectionChanged.subscribe(event => {\n      if (this._shouldHandleChangeEvent(event)) {\n        const value = this._getValueFromModel(event.selection);\n        this._lastValueValid = this._isValidValue(value);\n        this._cvaOnChange(value);\n        this._onTouched();\n        this._formatValue(value);\n        this.dateInput.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));\n        this.dateChange.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));\n      }\n    });\n  }\n\n  /** Opens the popup associated with the input. */\n  protected abstract _openPopup(): void;\n\n  /** Assigns a value to the input's model. */\n  protected abstract _assignValueToModel(model: D | null): void;\n\n  /** Converts a value from the model into a native value for the input. */\n  protected abstract _getValueFromModel(modelValue: S): D | null;\n\n  /** Combined form control validator for this input. */\n  protected abstract _validator: ValidatorFn | null;\n\n  /** Predicate that determines whether the input should handle a particular change event. */\n  protected abstract _shouldHandleChangeEvent(event: DateSelectionModelChange<S>): boolean;\n\n  /** Whether the last value set on the input was valid. */\n  protected _lastValueValid = false;\n\n  constructor(\n      protected _elementRef: ElementRef<HTMLInputElement>,\n      @Optional() public _dateAdapter: DateAdapter<D>,\n      @Optional() @Inject(MAT_DATE_FORMATS) private _dateFormats: MatDateFormats) {\n\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n      if (!this._dateAdapter) {\n        throw createMissingDateImplError('DateAdapter');\n      }\n      if (!this._dateFormats) {\n        throw createMissingDateImplError('MAT_DATE_FORMATS');\n      }\n    }\n\n    // Update the displayed date when the locale changes.\n    this._localeSubscription = _dateAdapter.localeChanges.subscribe(() => {\n      this._assignValueProgrammatically(this.value);\n    });\n  }\n\n  ngAfterViewInit() {\n    this._isInitialized = true;\n  }\n\n  ngOnChanges(changes: SimpleChanges) {\n    if (dateInputsHaveChanged(changes, this._dateAdapter)) {\n      this.stateChanges.next(undefined);\n    }\n  }\n\n  ngOnDestroy() {\n    this._valueChangesSubscription.unsubscribe();\n    this._localeSubscription.unsubscribe();\n    this.stateChanges.complete();\n  }\n\n  /** @docs-private */\n  registerOnValidatorChange(fn: () => void): void {\n    this._validatorOnChange = fn;\n  }\n\n  /** @docs-private */\n  validate(c: AbstractControl): ValidationErrors | null {\n    return this._validator ? this._validator(c) : null;\n  }\n\n  // Implemented as part of ControlValueAccessor.\n  writeValue(value: D): void {\n    this._assignValueProgrammatically(value);\n  }\n\n  // Implemented as part of ControlValueAccessor.\n  registerOnChange(fn: (value: any) => void): void {\n    this._cvaOnChange = fn;\n  }\n\n  // Implemented as part of ControlValueAccessor.\n  registerOnTouched(fn: () => void): void {\n    this._onTouched = fn;\n  }\n\n  // Implemented as part of ControlValueAccessor.\n  setDisabledState(isDisabled: boolean): void {\n    this.disabled = isDisabled;\n  }\n\n  _onKeydown(event: KeyboardEvent) {\n    const isAltDownArrow = event.altKey && event.keyCode === DOWN_ARROW;\n\n    if (isAltDownArrow && !this._elementRef.nativeElement.readOnly) {\n      this._openPopup();\n      event.preventDefault();\n    }\n  }\n\n  _onInput(value: string) {\n    const lastValueWasValid = this._lastValueValid;\n    let date = this._dateAdapter.parse(value, this._dateFormats.parse.dateInput);\n    this._lastValueValid = this._isValidValue(date);\n    date = this._dateAdapter.getValidDateOrNull(date);\n\n    if (!this._dateAdapter.sameDate(date, this.value)) {\n      this._assignValue(date);\n      this._cvaOnChange(date);\n      this.dateInput.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));\n    } else {\n      // Call the CVA change handler for invalid values\n      // since this is what marks the control as dirty.\n      if (value && !this.value) {\n        this._cvaOnChange(date);\n      }\n\n      if (lastValueWasValid !== this._lastValueValid) {\n        this._validatorOnChange();\n      }\n    }\n  }\n\n  _onChange() {\n    this.dateChange.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));\n  }\n\n  /** Handles blur events on the input. */\n  _onBlur() {\n    // Reformat the input only if we have a valid value.\n    if (this.value) {\n      this._formatValue(this.value);\n    }\n\n    this._onTouched();\n  }\n\n  /** Formats a value and sets it on the input element. */\n  protected _formatValue(value: D | null) {\n    this._elementRef.nativeElement.value =\n        value ? this._dateAdapter.format(value, this._dateFormats.display.dateInput) : '';\n  }\n\n  /** Assigns a value to the model. */\n  private _assignValue(value: D | null) {\n    // We may get some incoming values before the model was\n    // assigned. Save the value so that we can assign it later.\n    if (this._model) {\n      this._assignValueToModel(value);\n      this._pendingValue = null;\n    } else {\n      this._pendingValue = value;\n    }\n  }\n\n  /** Whether a value is considered valid. */\n  private _isValidValue(value: D | null): boolean {\n    return !value || this._dateAdapter.isValid(value);\n  }\n\n  /**\n   * Checks whether a parent control is disabled. This is in place so that it can be overridden\n   * by inputs extending this one which can be placed inside of a group that can be disabled.\n   */\n  protected _parentDisabled() {\n    return false;\n  }\n\n  /** Programmatically assigns a value to the input. */\n  protected _assignValueProgrammatically(value: D | null) {\n    value = this._dateAdapter.deserialize(value);\n    this._lastValueValid = this._isValidValue(value);\n    value = this._dateAdapter.getValidDateOrNull(value);\n    this._assignValue(value);\n    this._formatValue(value);\n  }\n\n  /** Gets whether a value matches the current date filter. */\n  _matchesFilter(value: D | null): boolean {\n    const filter = this._getDateFilter();\n    return !filter || filter(value);\n  }\n\n  // Accept `any` to avoid conflicts with other directives on `<input>` that\n  // may accept different types.\n  static ngAcceptInputType_value: any;\n  static ngAcceptInputType_disabled: BooleanInput;\n}\n\n/**\n * Checks whether the `SimpleChanges` object from an `ngOnChanges`\n * callback has any changes, accounting for date objects.\n */\nexport function dateInputsHaveChanged(\n  changes: SimpleChanges,\n  adapter: DateAdapter<unknown>): boolean {\n  const keys = Object.keys(changes);\n\n  for (let key of keys) {\n    const {previousValue, currentValue} = changes[key];\n\n    if (adapter.isDateInstance(previousValue) && adapter.isDateInstance(currentValue)) {\n      if (!adapter.sameDate(previousValue, currentValue)) {\n        return true;\n      }\n    } else {\n      return true;\n    }\n  }\n\n  return false;\n}\n"]} |