angular-cc-library
Version:
angular credit card library
144 lines • 16.5 kB
JavaScript
import { Directive, HostListener, Optional, Self } from '@angular/core';
import { CreditCard } from '../credit-card';
import { BehaviorSubject } from 'rxjs';
import * as i0 from "@angular/core";
import * as i1 from "@angular/forms";
export class CreditCardFormatDirective {
constructor(el, control) {
this.el = el;
this.control = control;
this.cards = CreditCard.cards();
this.resolvedScheme$ = new BehaviorSubject('unknown');
this.target = this.el.nativeElement;
}
/**
* Updates the value to target element, or FormControl if exists.
* @param value New input value.
*/
updateValue(value) {
if (this.control) {
this.control.control.setValue(value);
}
else {
this.target.value = value;
}
}
onKeypress(e) {
if (CreditCard.restrictNumeric(e)) {
if (CreditCard.isCardNumber(e.which, this.target)) {
this.formatCardNumber(e);
}
}
else {
e.preventDefault();
}
}
onKeydown(e) {
this.formatBackCardNumber(e);
this.reFormatCardNumber();
}
onKeyup() {
this.setCardType();
}
onPaste() {
this.reFormatCardNumber();
}
onChange() {
this.reFormatCardNumber();
}
onInput() {
this.reFormatCardNumber();
this.setCardType();
}
formatCardNumber(e) {
const digit = String.fromCharCode(e.which);
if (!/^\d+$/.test(digit)) {
return;
}
const value = this.target.value;
const card = CreditCard.cardFromNumber(value + digit);
const length = (value.replace(/\D/g, '') + digit).length;
const upperLength = card ? card.length[card.length.length - 1] : 19;
if (length >= upperLength) {
return;
}
}
formatBackCardNumber(e) {
const value = this.target.value;
const selStart = this.target.selectionStart;
if (e.which !== 8) {
return;
}
if (selStart != null
&& selStart === this.target.selectionEnd
&& selStart > 0
&& selStart !== value.length
&& value[selStart - 1] === ' ') {
e.preventDefault();
if (selStart <= 2) {
this.updateValue(value.slice(selStart));
this.target.selectionStart = 0;
this.target.selectionEnd = 0;
}
else {
this.updateValue(value.slice(0, selStart - 2) + value.slice(selStart));
this.target.selectionStart = selStart - 2;
this.target.selectionEnd = selStart - 2;
}
}
}
setCardType() {
const cardType = CreditCard.cardType(this.target.value) || 'unknown';
this.resolvedScheme$.next(cardType);
if (!this.target.classList.contains(cardType)) {
this.cards.forEach((card) => {
this.target.classList.remove(card.type);
});
this.target.classList.remove('unknown');
this.target.classList.add(cardType);
this.target.classList.toggle('identified', cardType !== 'unknown');
}
}
reFormatCardNumber() {
const value = CreditCard.formatCardNumber(CreditCard.replaceFullWidthChars(this.target.value));
const oldValue = this.target.value;
if (value !== oldValue) {
this.target.selectionStart = this.target.selectionEnd = CreditCard.safeVal(value, this.target, (safeVal => {
this.updateValue(safeVal);
}));
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.2", ngImport: i0, type: CreditCardFormatDirective, deps: [{ token: i0.ElementRef }, { token: i1.NgControl, optional: true, self: true }], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "18.2.2", type: CreditCardFormatDirective, isStandalone: true, selector: "[ccNumber]", host: { listeners: { "keypress": "onKeypress($event)", "keydown": "onKeydown($event)", "keyup": "onKeyup()", "paste": "onPaste()", "change": "onChange()", "input": "onInput()" } }, exportAs: ["ccNumber"], ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.2", ngImport: i0, type: CreditCardFormatDirective, decorators: [{
type: Directive,
args: [{
selector: '[ccNumber]',
exportAs: 'ccNumber',
standalone: true,
}]
}], ctorParameters: () => [{ type: i0.ElementRef }, { type: i1.NgControl, decorators: [{
type: Self
}, {
type: Optional
}] }], propDecorators: { onKeypress: [{
type: HostListener,
args: ['keypress', ['$event']]
}], onKeydown: [{
type: HostListener,
args: ['keydown', ['$event']]
}], onKeyup: [{
type: HostListener,
args: ['keyup']
}], onPaste: [{
type: HostListener,
args: ['paste']
}], onChange: [{
type: HostListener,
args: ['change']
}], onInput: [{
type: HostListener,
args: ['input']
}] } });
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{ Directive, ElementRef, HostListener, Optional, Self } from '@angular/core';\nimport { CreditCard } from '../credit-card';\nimport { NgControl } from '@angular/forms';\nimport { BehaviorSubject } from 'rxjs';\n\n@Directive({\n  selector: '[ccNumber]',\n  exportAs: 'ccNumber',\n  standalone: true,\n})\nexport class CreditCardFormatDirective {\n  private target: HTMLInputElement;\n  private cards = CreditCard.cards();\n\n  public resolvedScheme$ = new BehaviorSubject<string>('unknown');\n\n  constructor(\n    private el: ElementRef,\n    @Self() @Optional() private control: NgControl,\n  ) {\n    this.target = this.el.nativeElement;\n  }\n\n  /**\n   * Updates the value to target element, or FormControl if exists.\n   * @param value New input value.\n   */\n  private updateValue(value: string) {\n    if (this.control) {\n      this.control.control.setValue(value);\n    } else {\n      this.target.value = value;\n    }\n  }\n\n  @HostListener('keypress', ['$event'])\n  public onKeypress(e: KeyboardEvent) {\n    if (CreditCard.restrictNumeric(e)) {\n      if (CreditCard.isCardNumber(e.which, this.target)) {\n        this.formatCardNumber(e);\n      }\n    } else {\n      e.preventDefault();\n    }\n  }\n\n  @HostListener('keydown', ['$event'])\n  public onKeydown(e: KeyboardEvent) {\n    this.formatBackCardNumber(e);\n    this.reFormatCardNumber();\n  }\n\n  @HostListener('keyup')\n  public onKeyup() {\n    this.setCardType();\n  }\n\n  @HostListener('paste')\n  public onPaste() {\n    this.reFormatCardNumber();\n  }\n\n  @HostListener('change')\n  public onChange() {\n    this.reFormatCardNumber();\n  }\n\n  @HostListener('input')\n  public onInput() {\n    this.reFormatCardNumber();\n    this.setCardType();\n  }\n\n  private formatCardNumber(e: KeyboardEvent) {\n    const digit = String.fromCharCode(e.which);\n    if (!/^\\d+$/.test(digit)) {\n      return;\n    }\n\n    const value = this.target.value;\n    const card = CreditCard.cardFromNumber(value + digit);\n    const length = (value.replace(/\\D/g, '') + digit).length;\n    const upperLength = card ? card.length[card.length.length - 1] : 19;\n\n    if (length >= upperLength) {\n      return;\n    }\n  }\n\n  private formatBackCardNumber(e: KeyboardEvent) {\n    const value = this.target.value;\n    const selStart = this.target.selectionStart;\n\n    if (e.which !== 8) {\n      return;\n    }\n\n    if (selStart != null\n      && selStart === this.target.selectionEnd\n      && selStart > 0\n      && selStart !== value.length\n      && value[selStart - 1] === ' ') {\n      e.preventDefault();\n      if (selStart <= 2) {\n        this.updateValue(value.slice(selStart));\n        this.target.selectionStart = 0;\n        this.target.selectionEnd = 0;\n      } else {\n        this.updateValue(value.slice(0, selStart - 2) + value.slice(selStart));\n        this.target.selectionStart = selStart - 2;\n        this.target.selectionEnd = selStart - 2;\n      }\n    }\n  }\n\n  private setCardType() {\n    const cardType = CreditCard.cardType(this.target.value) || 'unknown';\n\n    this.resolvedScheme$.next(cardType);\n\n    if (!this.target.classList.contains(cardType)) {\n      this.cards.forEach((card) => {\n        this.target.classList.remove(card.type);\n      });\n\n      this.target.classList.remove('unknown');\n      this.target.classList.add(cardType);\n      this.target.classList.toggle('identified', cardType !== 'unknown');\n    }\n  }\n\n  private reFormatCardNumber() {\n    const value = CreditCard.formatCardNumber(\n      CreditCard.replaceFullWidthChars(this.target.value),\n    );\n    const oldValue = this.target.value;\n    if (value !== oldValue) {\n      this.target.selectionStart = this.target.selectionEnd = CreditCard.safeVal(value, this.target, (safeVal => {\n        this.updateValue(safeVal);\n      }));\n    }\n  }\n}\n"]}