71 lines
2.7 KiB
TypeScript
71 lines
2.7 KiB
TypeScript
import { Directive, ElementRef, Input, HostListener, Renderer2 } from "@angular/core";
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import { IMyInputAutoFill } from "../interfaces/my-input-auto-fill.interface";
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@Directive({
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selector: "[myinputautofill]"
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})
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export class InputAutoFillDirective {
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@Input("myinputautofill") opts: IMyInputAutoFill;
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constructor(private el: ElementRef, private rndr: Renderer2) {}
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@HostListener("keyup", ["$event"]) onKeyUp(evt: KeyboardEvent) {
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if (!this.opts.enabled || evt.keyCode === 8 || evt.keyCode === 46) {
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return;
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}
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let val: string = this.getInputValue();
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let ews: boolean = this.endsWith(val, this.opts.separator);
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let parts: Array<string> = val.split(this.opts.separator);
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let idx: number = parts.length - 1;
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if (val.indexOf(this.opts.separator + this.opts.separator) !== -1) {
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return;
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}
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if (!ews && (val.length === this.getPartLength(0) || val.length === this.getPartLength(0) + this.getPartLength(1) + this.opts.separator.length)) {
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this.setInputValue(val + this.opts.separator);
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}
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else if (ews && parts[idx - 1].length < this.getPartLength(idx - 1) && this.isNumber(parts[idx - 1]) && (this.isDay(idx - 1) || this.isMonth(idx - 1))) {
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this.setInputValue(this.insertPos(val, val.length - 2, "0"));
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}
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else if (parts[idx].length < this.getPartLength(idx) && this.isNumber(parts[idx]) && (Number(parts[idx]) > 3 && this.isDay(idx) || Number(parts[idx]) > 1 && this.isMonth(idx))) {
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this.setInputValue(this.insertPos(val, val.length - 1, "0") + (idx < 2 ? this.opts.separator : ""));
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}
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}
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private endsWith(val: string, suffix: string): boolean {
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return val.indexOf(suffix, val.length - suffix.length) !== -1;
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}
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private insertPos(str: string, idx: number, val: string): string {
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return str.substr(0, idx) + val + str.substr(idx);
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}
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private getPartLength(idx: number): number {
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return this.opts.formatParts[idx].length;
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}
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private isNumber(val: string): boolean {
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return val.match(/[1-9]/) !== null;
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}
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private isDay(idx: number): boolean {
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return this.opts.formatParts[idx].indexOf("d") !== -1;
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}
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private isMonth(idx: number): boolean {
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return this.opts.formatParts[idx].indexOf("m") !== -1 && this.opts.formatParts[idx].length === 2;
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}
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private getInputValue(): string {
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return this.el.nativeElement.value;
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}
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private setInputValue(val: string): void {
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console.info(val);
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this.rndr.setProperty(this.el.nativeElement, "value", val);
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//this.rndr.setProperty(this.el.nativeElement, "value", val);
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}
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} |