@angular/material/fesm2022/_error-state-chunk.mjs

Angular Material

import { isSignal } from '@angular/core';

class _ErrorStateTracker {
  _defaultMatcher;
  _parentFormGroup;
  _parentForm;
  _stateChanges;
  errorState = false;
  matcher;
  ngControl;
  formField;
  constructor(_defaultMatcher, directive, _parentFormGroup, _parentForm, _stateChanges) {
    this._defaultMatcher = _defaultMatcher;
    this._parentFormGroup = _parentFormGroup;
    this._parentForm = _parentForm;
    this._stateChanges = _stateChanges;
    if (!directive) {
      this.ngControl = this.formField = null;
    } else if (isSignal(directive.field) && !directive.updateValueAndValidity) {
      this.formField = directive;
      this.ngControl = null;
    } else {
      this.formField = null;
      this.ngControl = directive;
    }
  }
  updateErrorState() {
    const oldState = this.errorState;
    const newState = this._getCurrentErrorState(this.matcher || this._defaultMatcher);
    if (newState !== oldState) {
      this.errorState = newState;
      this._stateChanges.next();
    }
  }
  _getCurrentErrorState(matcher) {
    if (this.formField && matcher?.isSignalErrorState) {
      return matcher.isSignalErrorState(this.formField.field()) ?? false;
    }
    const parent = this._parentFormGroup || this._parentForm;
    const control = this.ngControl ? this.ngControl.control : null;
    return matcher?.isErrorState(control, parent) ?? false;
  }
}

export { _ErrorStateTracker };
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