@vaadin/custom-field/theme/lumo/vaadin-custom-field-styles.js

vaadin-custom-field

/**
 * @license
 * Copyright (c) 2019 - 2025 Vaadin Ltd.
 * This program is available under Apache License Version 2.0, available at https://vaadin.com/license/
 */
import '@vaadin/vaadin-lumo-styles/color.js';
import '@vaadin/vaadin-lumo-styles/sizing.js';
import '@vaadin/vaadin-lumo-styles/spacing.js';
import '@vaadin/vaadin-lumo-styles/typography.js';
import { helper } from '@vaadin/vaadin-lumo-styles/mixins/helper.js';
import { requiredField } from '@vaadin/vaadin-lumo-styles/mixins/required-field.js';
import { css, registerStyles } from '@vaadin/vaadin-themable-mixin/vaadin-themable-mixin.js';

const customField = css`
  :host {
    --lumo-text-field-size: var(--lumo-size-m);
    color: var(--lumo-body-text-color);
    font-size: var(--lumo-font-size-m);
    /* align with text-field height + vertical paddings */
    line-height: calc(var(--lumo-text-field-size) + 2 * var(--lumo-space-xs));
    font-family: var(--lumo-font-family);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    padding: 0;
  }

  :host::before {
    margin-top: var(--lumo-space-xs);
    height: var(--lumo-text-field-size);
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
  }

  /* align with text-field label */
  :host([has-label]) [part='label'] {
    padding-bottom: calc(0.5em - var(--lumo-space-xs));
  }

  :host(:not([has-label])) [part='label'],
  :host(:not([has-label]))::before {
    display: none;
  }

  /* align with text-field error message */
  :host([has-error-message]) [part='error-message']::before {
    height: calc(0.4em - var(--lumo-space-xs));
  }

  :host([focused]:not([readonly]):not([disabled])) [part='label'] {
    color: var(--lumo-primary-text-color);
  }

  :host(:hover:not([readonly]):not([disabled]):not([focused])) [part='label'],
  :host(:hover:not([readonly]):not([disabled]):not([focused])) [part='helper-text'] {
    color: var(--lumo-body-text-color);
  }

  /* Touch device adjustment */
  @media (pointer: coarse) {
    :host(:hover:not([readonly]):not([disabled]):not([focused])) [part='label'] {
      color: var(--lumo-secondary-text-color);
    }
  }

  /* Disabled */
  :host([disabled]) [part='label'] {
    color: var(--lumo-disabled-text-color);
    -webkit-text-fill-color: var(--lumo-disabled-text-color);
  }

  /* Small theme */
  :host([theme~='small']) {
    font-size: var(--lumo-font-size-s);
    --lumo-text-field-size: var(--lumo-size-s);
  }

  :host([theme~='small'][has-label]) [part='label'] {
    font-size: var(--lumo-font-size-xs);
  }

  :host([theme~='small'][has-label]) [part='error-message'] {
    font-size: var(--lumo-font-size-xxs);
  }

  /* When custom-field is used with components without outer margin */
  :host([theme~='whitespace'][has-label]) [part='label'] {
    padding-bottom: 0.5em;
  }
`;

registerStyles('vaadin-custom-field', [requiredField, helper, customField], {
  moduleId: 'lumo-custom-field',
});

export { customField };