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vaadin-text-field-2.js
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vaadin-text-field-2.js
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import { LitElement, html, css } from 'lit-element';
import { vaadinTextFieldStyles } from './vaadin-text-field-styles.js';
class VaadinTextField2 extends LitElement {
static get properties() { return {
label: { type: String },
value: { type: String },
error: { type: String },
required: { type: Boolean }
};}
constructor() {
super();
this.label = '';
this.error = '';
this.value = '';
this.required = false;
}
static get styles() {
return [vaadinTextFieldStyles, css``]
}
render() {
return html`
<label for="input">
${this.label}
${this.required ? html`<span aria-hidden="true">*</span>` : html``}
</label>
<div id="input-wrapper">
<slot name="prefix"></slot>
<input id="input" type="text" value="${this.value}">
<slot name="suffix"></slot>
</div>
<span id="error" aria-live="polite">${this.error}</span>
`;
}
firstUpdated() {
var input = this.shadowRoot.querySelector('#input');
if (this.required) {
input.setAttribute('aria-required', 'true');
} else {
input.removeAttribute('aria-required');
}
input.addEventListener('focus', event => {
this.setAttribute('focused', '');
});
input.addEventListener('blur', event => {
this.removeAttribute('focused');
});
}
}
customElements.define('vaadin-text-field-2', VaadinTextField2);