@vaadin/number-field/src/vaadin-lit-number-field.js

vaadin-number-field

/**
 * @license
 * Copyright (c) 2021 - 2025 Vaadin Ltd.
 * This program is available under Apache License Version 2.0, available at https://vaadin.com/license/
 */
import '@vaadin/input-container/src/vaadin-lit-input-container.js';
import { html, LitElement } from 'lit';
import { ifDefined } from 'lit/directives/if-defined.js';
import { defineCustomElement } from '@vaadin/component-base/src/define.js';
import { ElementMixin } from '@vaadin/component-base/src/element-mixin.js';
import { PolylitMixin } from '@vaadin/component-base/src/polylit-mixin.js';
import { inputFieldShared } from '@vaadin/field-base/src/styles/input-field-shared-styles.js';
import { ThemableMixin } from '@vaadin/vaadin-themable-mixin/vaadin-themable-mixin.js';
import { NumberFieldMixin } from './vaadin-number-field-mixin.js';
import { numberFieldStyles } from './vaadin-number-field-styles.js';

/**
 * LitElement based version of `<vaadin-number-field>` web component.
 *
 * ## Disclaimer
 *
 * This component is an experiment and not yet a part of Vaadin platform.
 * There is no ETA regarding specific Vaadin version where it'll land.
 * Feel free to try this code in your apps as per Apache 2.0 license.
 */
class NumberField extends NumberFieldMixin(ThemableMixin(ElementMixin(PolylitMixin(LitElement)))) {
  static get is() {
    return 'vaadin-number-field';
  }

  static get styles() {
    return [inputFieldShared, numberFieldStyles];
  }

  /** @protected */
  render() {
    return html`
      <div class="vaadin-field-container">
        <div part="label">
          <slot name="label"></slot>
          <span part="required-indicator" aria-hidden="true" @click="${this.focus}"></span>
        </div>

        <vaadin-input-container
          part="input-field"
          .readonly="${this.readonly}"
          .disabled="${this.disabled}"
          .invalid="${this.invalid}"
          theme="${ifDefined(this._theme)}"
        >
          <div
            part="decrease-button"
            ?disabled="${!this._isButtonEnabled(-1, this.value, this.min, this.max, this.step)}"
            ?hidden="${!this.stepButtonsVisible}"
            @click="${this._onDecreaseButtonClick}"
            @touchend="${this._onDecreaseButtonTouchend}"
            aria-hidden="true"
            slot="prefix"
          ></div>
          <slot name="prefix" slot="prefix"></slot>
          <slot name="input"></slot>
          <slot name="suffix" slot="suffix"></slot>
          <div id="clearButton" part="clear-button" slot="suffix" aria-hidden="true"></div>
          <div
            part="increase-button"
            ?disabled="${!this._isButtonEnabled(1, this.value, this.min, this.max, this.step)}"
            ?hidden="${!this.stepButtonsVisible}"
            @click="${this._onIncreaseButtonClick}"
            @touchend="${this._onIncreaseButtonTouchend}"
            aria-hidden="true"
            slot="suffix"
          ></div>
        </vaadin-input-container>

        <div part="helper-text">
          <slot name="helper"></slot>
        </div>

        <div part="error-message">
          <slot name="error-message"></slot>
        </div>
      </div>

      <slot name="tooltip"></slot>
    `;
  }
}

defineCustomElement(NumberField);

export { NumberField };