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feat(app): nmas-004 uso de atributos #9

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Merged
konami12 merged 1 commit into from
Aug 24, 2026
Merged

feat(app): nmas-004 uso de atributos #9

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1 change: 1 addition & 0 deletions src/components/index.js
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Original file line number Diff line number Diff line change
@@ -1,2 +1,3 @@
import "./pr1/Badge.js";
import "./pr2/Card.js";
import "./pr3/Dynamic.js";
67 changes: 67 additions & 0 deletions src/components/pr3/Dynamic.js
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@@ -0,0 +1,67 @@
class Dynamic extends HTMLElement {
constructor() {
super();
this.attachShadow({ mode: "open" });
}

connectedCallback() {
this.render();
}

disconnectedCallback() {
console.log("Componente Desmontado");
}

// se declaran los atributos
static get observedAttributes() {
return [
"role",
"active",
];
}

// Detecta el cambio de los atributos
attributeChangedCallback(name, oldValue, newValue) {
if (oldValue !== newValue) {
console.log(`Attribute ${name} changed from ${oldValue} to ${newValue}`);
this.render();
}
}

render() {
const role = this.getAttribute("role") || "Default role";
const active = this.hasAttribute("active") || false;
this.shadowRoot.innerHTML = `
<style>
:host {
display: block;
border: 1px solid #ccc;
width: fit-content;
height: auto;
margin: 50px auto;
padding: 10px;
text-align: center;
border-radius: 10px;
}
:host * {
padding: 0;
margin: 0;
}
:host([active]) {
background-color: #8600b3;
color:#f2ccff;
}
:host(:not([active])) {
background-color: #f2ccff;
color:#8600b3;
}
</style>
<div>
<p>Role: ${role}</p>
</div>
`;
}

}

window.customElements.define("wc-dynamic", Dynamic);
2 changes: 2 additions & 0 deletions src/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,8 @@
<body>
<wc-badge></wc-badge>
<wc-card></wc-card>
<wc-dynamic role="JMZ" active></wc-dynamic>
<wc-dynamic role="JMZ"></wc-dynamic>
<script type="module" src="./components/index.js"></script>
</body>
</html>
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