decorators

@rhtml/decorators

Installation

npm i @rhtml/decorators

Usage

import { Attribute, Options, Input } from '@rhtml/custom-attributes';
import { HostListener } from '@rhtml/decorators';

@Modifier({
  selector: 'test'
})
export class TestDirective extends Attribute {
  @Input()
  myProperty: string;

  @HostListener('mouseenter')
  enter(event: Event) {
    console.log('ENTER', this, event);
    console.log(this.myProperty);
  }

  @HostListener('mouseleave')
  leave(event: Event) {
    console.log('LEAVE', this, event);
    console.log(this.myProperty);
  }
}

<div test myProperty="12312">
  111
</div>

Usage inside @rxdi/lit-html

import { Component, html, LitElement } from '@rxdi/lit-html';

import { HostListener } from '@rhtml/decorators';

/**
 * @customElement home-component
 */
@Component({
  selector: 'home-component',
  template(this) {
    return html`
      Home Component
    `;
  }
})
export class HomeComponent extends LitElement {
  @HostListener('mouseenter') onEnter() {
    console.log('Enter home');
  }

  @HostListener('mouseleave') onLeave() {
    console.log('Leave home');
  }
}

@HostBinding and @Input decorators

Specifiyng Input and HostBinding decorator gives you an reactive ability to assign styles directly to input properties This way by editing padding, color or background will reflect to the style associated with By doing this we can skip OnInit, OnDestroy, OnUpdate manual assign inside hooks

import { Attribute, Input, Modifier } from '@rhtml/custom-attributes';
import { HostBinding } from '@rhtml/decorators';

@Modifier({
  selector: 'layout'
})
export class CustomLayout extends Attribute {
  @Input({ observe: true })
  @HostBinding('style.padding')
  padding: string;

  @Input({ observe: true })
  @HostBinding('style.color')
  color: string;

  @Input({ observe: true })
  @HostBinding('style.background')
  background: string;
}