import { Injectable } from '@angular/core' ; import { InputContext } from './struct/input-context.interface' ; import adjustCaretPosition from './static-vendors/adjustCaretPosition' ; @ Injectable ( ) export class InputContextService implements InputContext { previousConformedValue = '' ; previousPlaceholder = '' ; currentCaretPosition = 0 ; conformedValue = '' ; rawValue = '' ; placeholderChar = '_' ; placeholder = '_' ; indexesOfPipedChars = [ ] ; caretTrapIndexes = [ ] ; setSelection ( input ) { const adjustCaretConfig = { previousConformedValue : this . previousConformedValue , previousPlaceholder : this . previousPlaceholder , currentCaretPosition : this . currentCaretPosition , conformedValue : this . conformedValue , rawValue : this . rawValue , placeholderChar : this . placeholderChar , placeholder : this . placeholder , indexesOfPipedChars : this . indexesOfPipedChars , caretTrapIndexes : this . caretTrapIndexes } ; const selectionPosition = adjustCaretPosition ( adjustCaretConfig ) ; } }