/**
 * Chevron Down Icon Web Component
 * A downward pointing chevron
 */
class ChevronDownIcon extends HTMLElement {
  static get observedAttributes() {
    return ["size", "color", "stroke-width"];
  }

  constructor() {
    super();
    this.attachShadow({ mode: "open" });
  }

  connectedCallback() {
    this.render();
  }

  attributeChangedCallback() {
    this.render();
  }

  get size() {
    return this.getAttribute("size") || "24";
  }

  get color() {
    return this.getAttribute("color") || "currentColor";
  }

  get strokeWidth() {
    return this.getAttribute("stroke-width") || "2";
  }

  render() {
    this.shadowRoot.innerHTML = `
      <style>
        :host {
          display: inline-flex;
          align-items: center;
          justify-content: center;
        }
        svg {
          display: block;
        }
      </style>
      <svg
        xmlns="http://www.w3.org/2000/svg"
        width="${this.size}"
        height="${this.size}"
        viewBox="0 0 24 24"
        fill="none"
        stroke="${this.color}"
        stroke-width="${this.strokeWidth}"
        stroke-linecap="round"
        stroke-linejoin="round"
      >
        <polyline points="6 9 12 15 18 9"></polyline>
      </svg>
    `;
  }
}

customElements.define("chevron-down-icon", ChevronDownIcon);