kopia lustrzana https://github.com/shoelace-style/shoelace
544 wiersze
20 KiB
TypeScript
544 wiersze
20 KiB
TypeScript
import '../icon/icon';
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import { classMap } from 'lit/directives/class-map.js';
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import { customElement, property, query, state } from 'lit/decorators.js';
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import { defaultValue } from '../../internal/default-value';
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import { FormControlController } from '../../internal/form';
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import { HasSlotController } from '../../internal/slot';
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import { html } from 'lit';
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import { ifDefined } from 'lit/directives/if-defined.js';
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import { live } from 'lit/directives/live.js';
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import { LocalizeController } from '../../utilities/localize';
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import { watch } from '../../internal/watch';
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import ShoelaceElement from '../../internal/shoelace-element';
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import styles from './input.styles';
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import type { CSSResultGroup } from 'lit';
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import type { ShoelaceFormControl } from '../../internal/shoelace-element';
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//
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// It's currently impossible to hide Firefox's built-in clear icon when using <input type="date|time">, so we need this
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// check to apply a clip-path to hide it. I know, I know…user agent sniffing is nasty but, if it fails, we only see a
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// redundant clear icon so nothing important is breaking. The benefits outweigh the costs for this one. See the
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// discussion at: https://github.com/shoelace-style/shoelace/pull/794
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//
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// Also note that we do the Chromium check first to prevent Chrome from logging a console notice as described here:
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// https://github.com/shoelace-style/shoelace/issues/855
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//
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const isChromium = navigator.userAgentData?.brands.some(b => b.brand.includes('Chromium'));
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const isFirefox = isChromium ? false : navigator.userAgent.includes('Firefox');
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/**
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* @summary Inputs collect data from the user.
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* @documentation https://shoelace.style/components/input
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* @status stable
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* @since 2.0
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*
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* @dependency sl-icon
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*
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* @slot label - The input's label. Alternatively, you can use the `label` attribute.
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* @slot prefix - Used to prepend a presentational icon or similar element to the input.
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* @slot suffix - Used to append a presentational icon or similar element to the input.
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* @slot clear-icon - An icon to use in lieu of the default clear icon.
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* @slot show-password-icon - An icon to use in lieu of the default show password icon.
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* @slot hide-password-icon - An icon to use in lieu of the default hide password icon.
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* @slot help-text - Text that describes how to use the input. Alternatively, you can use the `help-text` attribute.
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*
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* @event sl-blur - Emitted when the control loses focus.
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* @event sl-change - Emitted when an alteration to the control's value is committed by the user.
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* @event sl-clear - Emitted when the clear button is activated.
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* @event sl-focus - Emitted when the control gains focus.
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* @event sl-input - Emitted when the control receives input.
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*
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* @csspart form-control - The form control that wraps the label, input, and help text.
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* @csspart form-control-label - The label's wrapper.
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* @csspart form-control-input - The input's wrapper.
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* @csspart form-control-help-text - The help text's wrapper.
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* @csspart base - The component's base wrapper.
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* @csspart input - The internal `<input>` control.
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* @csspart prefix - The container that wraps the prefix.
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* @csspart clear-button - The clear button.
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* @csspart password-toggle-button - The password toggle button.
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* @csspart suffix - The container that wraps the suffix.
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*/
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@customElement('sl-input')
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export default class SlInput extends ShoelaceElement implements ShoelaceFormControl {
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static styles: CSSResultGroup = styles;
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private readonly formControlController = new FormControlController(this);
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private readonly hasSlotController = new HasSlotController(this, 'help-text', 'label');
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private readonly localize = new LocalizeController(this);
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@query('.input__control') input: HTMLInputElement;
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@state() private hasFocus = false;
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@property() title = ''; // make reactive to pass through
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/**
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* The type of input. Works the same as a native `<input>` element, but only a subset of types are supported. Defaults
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* to `text`.
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*/
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@property({ reflect: true }) type:
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| 'date'
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| 'datetime-local'
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| 'email'
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| 'number'
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| 'password'
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| 'search'
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| 'tel'
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| 'text'
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| 'time'
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| 'url' = 'text';
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/** The name of the input, submitted as a name/value pair with form data. */
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@property() name = '';
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/** The current value of the input, submitted as a name/value pair with form data. */
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@property() value = '';
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/** The default value of the form control. Primarily used for resetting the form control. */
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@defaultValue() defaultValue = '';
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/** The input's size. */
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@property({ reflect: true }) size: 'small' | 'medium' | 'large' = 'medium';
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/** Draws a filled input. */
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@property({ type: Boolean, reflect: true }) filled = false;
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/** Draws a pill-style input with rounded edges. */
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@property({ type: Boolean, reflect: true }) pill = false;
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/** The input's label. If you need to display HTML, use the `label` slot instead. */
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@property() label = '';
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/** The input's help text. If you need to display HTML, use the `help-text` slot instead. */
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@property({ attribute: 'help-text' }) helpText = '';
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/** Adds a clear button when the input is not empty. */
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@property({ type: Boolean }) clearable = false;
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/** Disables the input. */
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@property({ type: Boolean, reflect: true }) disabled = false;
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/** Placeholder text to show as a hint when the input is empty. */
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@property() placeholder = '';
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/** Makes the input readonly. */
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@property({ type: Boolean, reflect: true }) readonly = false;
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/** Adds a button to toggle the password's visibility. Only applies to password types. */
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@property({ attribute: 'password-toggle', type: Boolean }) passwordToggle = false;
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/** Determines whether or not the password is currently visible. Only applies to password input types. */
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@property({ attribute: 'password-visible', type: Boolean }) passwordVisible = false;
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/** Hides the browser's built-in increment/decrement spin buttons for number inputs. */
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@property({ attribute: 'no-spin-buttons', type: Boolean }) noSpinButtons = false;
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/**
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* By default, form controls are associated with the nearest containing `<form>` element. This attribute allows you
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* to place the form control outside of a form and associate it with the form that has this `id`. The form must be in
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* the same document or shadow root for this to work.
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*/
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@property({ reflect: true }) form = '';
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/** Makes the input a required field. */
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@property({ type: Boolean, reflect: true }) required = false;
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/** A regular expression pattern to validate input against. */
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@property() pattern: string;
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/** The minimum length of input that will be considered valid. */
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@property({ type: Number }) minlength: number;
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/** The maximum length of input that will be considered valid. */
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@property({ type: Number }) maxlength: number;
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/** The input's minimum value. Only applies to date and number input types. */
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@property({ type: Number }) min: number;
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/** The input's maximum value. Only applies to date and number input types. */
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@property({ type: Number }) max: number;
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/**
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* Specifies the granularity that the value must adhere to, or the special value `any` which means no stepping is
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* implied, allowing any numeric value. Only applies to date and number input types.
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*/
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@property() step: number | 'any';
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/** Controls whether and how text input is automatically capitalized as it is entered by the user. */
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@property() autocapitalize: 'off' | 'none' | 'on' | 'sentences' | 'words' | 'characters';
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/** Indicates whether the browser's autocorrect feature is on or off. */
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@property() autocorrect: 'off' | 'on';
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/**
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* Specifies what permission the browser has to provide assistance in filling out form field values. Refer to
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* [this page on MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/autocomplete) for available values.
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*/
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@property() autocomplete: string;
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/** Indicates that the input should receive focus on page load. */
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@property({ type: Boolean }) autofocus: boolean;
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/** Used to customize the label or icon of the Enter key on virtual keyboards. */
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@property() enterkeyhint: 'enter' | 'done' | 'go' | 'next' | 'previous' | 'search' | 'send';
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/** Enables spell checking on the input. */
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@property({
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type: Boolean,
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converter: {
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// Allow "true|false" attribute values but keep the property boolean
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fromAttribute: value => (!value || value === 'false' ? false : true),
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toAttribute: value => (value ? 'true' : 'false')
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}
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})
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spellcheck = true;
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/**
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* Tells the browser what type of data will be entered by the user, allowing it to display the appropriate virtual
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* keyboard on supportive devices.
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*/
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@property() inputmode: 'none' | 'text' | 'decimal' | 'numeric' | 'tel' | 'search' | 'email' | 'url';
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/** Gets or sets the current value as a `Date` object. Returns `null` if the value can't be converted. */
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get valueAsDate() {
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return this.input?.valueAsDate ?? null;
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}
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set valueAsDate(newValue: Date | null) {
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// We use an in-memory input instead of the one in the template because the property can be set before render
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const input = document.createElement('input');
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input.type = 'date';
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input.valueAsDate = newValue;
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this.value = input.value;
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}
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/** Gets or sets the current value as a number. Returns `NaN` if the value can't be converted. */
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get valueAsNumber() {
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return this.input?.valueAsNumber ?? parseFloat(this.value);
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}
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set valueAsNumber(newValue: number) {
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// We use an in-memory input instead of the one in the template because the property can be set before render
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const input = document.createElement('input');
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input.type = 'number';
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input.valueAsNumber = newValue;
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this.value = input.value;
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}
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firstUpdated() {
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this.formControlController.updateValidity();
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}
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private handleBlur() {
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this.hasFocus = false;
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this.emit('sl-blur');
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}
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private handleChange() {
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this.value = this.input.value;
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this.emit('sl-change');
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}
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private handleClearClick(event: MouseEvent) {
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this.value = '';
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this.emit('sl-clear');
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this.emit('sl-input');
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this.emit('sl-change');
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this.input.focus();
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event.stopPropagation();
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}
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private handleFocus() {
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this.hasFocus = true;
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this.emit('sl-focus');
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}
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private handleInput() {
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this.value = this.input.value;
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this.formControlController.updateValidity();
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this.emit('sl-input');
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}
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private handleInvalid() {
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this.formControlController.setValidity(false);
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}
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private handleKeyDown(event: KeyboardEvent) {
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const hasModifier = event.metaKey || event.ctrlKey || event.shiftKey || event.altKey;
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// Pressing enter when focused on an input should submit the form like a native input, but we wait a tick before
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// submitting to allow users to cancel the keydown event if they need to
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if (event.key === 'Enter' && !hasModifier) {
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setTimeout(() => {
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//
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// When using an Input Method Editor (IME), pressing enter will cause the form to submit unexpectedly. One way
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// to check for this is to look at event.isComposing, which will be true when the IME is open.
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//
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// See https://github.com/shoelace-style/shoelace/pull/988
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//
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if (!event.defaultPrevented && !event.isComposing) {
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this.formControlController.submit();
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}
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});
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}
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}
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private handlePasswordToggle() {
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this.passwordVisible = !this.passwordVisible;
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}
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@watch('disabled', { waitUntilFirstUpdate: true })
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handleDisabledChange() {
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// Disabled form controls are always valid
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this.formControlController.setValidity(this.disabled);
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}
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@watch('step', { waitUntilFirstUpdate: true })
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handleStepChange() {
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// If step changes, the value may become invalid so we need to recheck after the update. We set the new step
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// imperatively so we don't have to wait for the next render to report the updated validity.
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this.input.step = String(this.step);
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this.formControlController.updateValidity();
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}
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@watch('value', { waitUntilFirstUpdate: true })
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async handleValueChange() {
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await this.updateComplete;
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this.formControlController.updateValidity();
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}
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/** Sets focus on the input. */
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focus(options?: FocusOptions) {
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this.input.focus(options);
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}
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/** Removes focus from the input. */
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blur() {
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this.input.blur();
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}
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/** Selects all the text in the input. */
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select() {
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this.input.select();
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}
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/** Sets the start and end positions of the text selection (0-based). */
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setSelectionRange(
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selectionStart: number,
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selectionEnd: number,
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selectionDirection: 'forward' | 'backward' | 'none' = 'none'
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) {
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this.input.setSelectionRange(selectionStart, selectionEnd, selectionDirection);
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}
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/** Replaces a range of text with a new string. */
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setRangeText(
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replacement: string,
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start?: number,
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end?: number,
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selectMode?: 'select' | 'start' | 'end' | 'preserve'
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) {
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// @ts-expect-error - start, end, and selectMode are optional
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this.input.setRangeText(replacement, start, end, selectMode);
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if (this.value !== this.input.value) {
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this.value = this.input.value;
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}
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}
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/** Displays the browser picker for an input element (only works if the browser supports it for the input type). */
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showPicker() {
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if ('showPicker' in HTMLInputElement.prototype) {
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this.input.showPicker();
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}
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}
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/** Increments the value of a numeric input type by the value of the step attribute. */
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stepUp() {
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this.input.stepUp();
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if (this.value !== this.input.value) {
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this.value = this.input.value;
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}
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}
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/** Decrements the value of a numeric input type by the value of the step attribute. */
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stepDown() {
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this.input.stepDown();
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if (this.value !== this.input.value) {
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this.value = this.input.value;
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}
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}
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/** Checks for validity but does not show the browser's validation message. */
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checkValidity() {
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return this.input.checkValidity();
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}
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/** Checks for validity and shows the browser's validation message if the control is invalid. */
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reportValidity() {
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return this.input.reportValidity();
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}
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/** Sets a custom validation message. Pass an empty string to restore validity. */
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setCustomValidity(message: string) {
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this.input.setCustomValidity(message);
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this.formControlController.updateValidity();
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}
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render() {
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const hasLabelSlot = this.hasSlotController.test('label');
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const hasHelpTextSlot = this.hasSlotController.test('help-text');
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const hasLabel = this.label ? true : !!hasLabelSlot;
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const hasHelpText = this.helpText ? true : !!hasHelpTextSlot;
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const hasClearIcon =
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this.clearable && !this.disabled && !this.readonly && (typeof this.value === 'number' || this.value.length > 0);
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return html`
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<div
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part="form-control"
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class=${classMap({
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'form-control': true,
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'form-control--small': this.size === 'small',
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'form-control--medium': this.size === 'medium',
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'form-control--large': this.size === 'large',
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'form-control--has-label': hasLabel,
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'form-control--has-help-text': hasHelpText
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})}
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>
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<label
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part="form-control-label"
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class="form-control__label"
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for="input"
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aria-hidden=${hasLabel ? 'false' : 'true'}
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>
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<slot name="label">${this.label}</slot>
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</label>
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<div part="form-control-input" class="form-control-input">
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<div
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part="base"
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class=${classMap({
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input: true,
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// Sizes
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'input--small': this.size === 'small',
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'input--medium': this.size === 'medium',
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'input--large': this.size === 'large',
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// States
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'input--pill': this.pill,
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'input--standard': !this.filled,
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'input--filled': this.filled,
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'input--disabled': this.disabled,
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'input--focused': this.hasFocus,
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'input--empty': !this.value,
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'input--no-spin-buttons': this.noSpinButtons,
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'input--is-firefox': isFirefox
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})}
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>
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<slot name="prefix" part="prefix" class="input__prefix"></slot>
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<input
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part="input"
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id="input"
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class="input__control"
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type=${this.type === 'password' && this.passwordVisible ? 'text' : this.type}
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title=${this.title /* An empty title prevents browser validation tooltips from appearing on hover */}
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name=${ifDefined(this.name)}
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?disabled=${this.disabled}
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?readonly=${this.readonly}
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?required=${this.required}
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placeholder=${ifDefined(this.placeholder)}
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minlength=${ifDefined(this.minlength)}
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maxlength=${ifDefined(this.maxlength)}
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min=${ifDefined(this.min)}
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max=${ifDefined(this.max)}
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step=${ifDefined(this.step as number)}
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.value=${live(this.value)}
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autocapitalize=${ifDefined(this.type === 'password' ? 'off' : this.autocapitalize)}
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autocomplete=${ifDefined(this.type === 'password' ? 'off' : this.autocomplete)}
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autocorrect=${ifDefined(this.type === 'password' ? 'off' : this.autocorrect)}
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?autofocus=${this.autofocus}
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spellcheck=${this.spellcheck}
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pattern=${ifDefined(this.pattern)}
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enterkeyhint=${ifDefined(this.enterkeyhint)}
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inputmode=${ifDefined(this.inputmode)}
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aria-describedby="help-text"
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@change=${this.handleChange}
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@input=${this.handleInput}
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@invalid=${this.handleInvalid}
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@keydown=${this.handleKeyDown}
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@focus=${this.handleFocus}
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@blur=${this.handleBlur}
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/>
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${
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hasClearIcon
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? html`
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<button
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part="clear-button"
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class="input__clear"
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type="button"
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aria-label=${this.localize.term('clearEntry')}
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@click=${this.handleClearClick}
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tabindex="-1"
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>
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<slot name="clear-icon">
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<sl-icon name="x-circle-fill" library="system"></sl-icon>
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</slot>
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</button>
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`
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: ''
|
|
}
|
|
${
|
|
this.passwordToggle && !this.disabled
|
|
? html`
|
|
<button
|
|
part="password-toggle-button"
|
|
class="input__password-toggle"
|
|
type="button"
|
|
aria-label=${this.localize.term(this.passwordVisible ? 'hidePassword' : 'showPassword')}
|
|
@click=${this.handlePasswordToggle}
|
|
tabindex="-1"
|
|
>
|
|
${this.passwordVisible
|
|
? html`
|
|
<slot name="show-password-icon">
|
|
<sl-icon name="eye-slash" library="system"></sl-icon>
|
|
</slot>
|
|
`
|
|
: html`
|
|
<slot name="hide-password-icon">
|
|
<sl-icon name="eye" library="system"></sl-icon>
|
|
</slot>
|
|
`}
|
|
</button>
|
|
`
|
|
: ''
|
|
}
|
|
|
|
<slot name="suffix" part="suffix" class="input__suffix"></slot>
|
|
</div>
|
|
</div>
|
|
|
|
<slot
|
|
name="help-text"
|
|
part="form-control-help-text"
|
|
id="help-text"
|
|
class="form-control__help-text"
|
|
aria-hidden=${hasHelpText ? 'false' : 'true'}
|
|
>
|
|
${this.helpText}
|
|
</slot>
|
|
</div>
|
|
</div>
|
|
`;
|
|
}
|
|
}
|
|
|
|
declare global {
|
|
interface HTMLElementTagNameMap {
|
|
'sl-input': SlInput;
|
|
}
|
|
}
|