29 lines
612 B
TypeScript
Executable File
29 lines
612 B
TypeScript
Executable File
import { AfterContentChecked, Directive, ElementRef, HostListener } from '@angular/core';
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@Directive({
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selector: 'textarea[autosize]'
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})
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export class AutosizeDirective implements AfterContentChecked {
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constructor(public element: ElementRef) {}
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@HostListener('input')
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public onInput() {
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this.resize();
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}
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public ngAfterContentChecked() {
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this.resize();
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}
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public resize() {
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const style = this.element.nativeElement.style;
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style.overflow = 'hidden';
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style.height = 'auto';
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const height = this.element.nativeElement.scrollHeight;
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style.height = `${height}px`;
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}
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}
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