185 lines
8.6 KiB
TypeScript
185 lines
8.6 KiB
TypeScript
import ShoelaceElement from '../../internal/shoelace-element.js';
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import SlIcon from '../icon/icon.component.js';
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import SlPopup from '../popup/popup.component.js';
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import SlTag from '../tag/tag.component.js';
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import type { CSSResultGroup, TemplateResult } from 'lit';
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import type { ShoelaceFormControl } from '../../internal/shoelace-element.js';
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import type SlOption from '../option/option.component.js';
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/**
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* @summary Selects allow you to choose items from a menu of predefined options.
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* @documentation https://shoelace.style/components/select
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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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* @dependency sl-popup
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* @dependency sl-tag
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*
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* @slot - The listbox options. Must be `<sl-option>` elements. You can use `<sl-divider>` to group items visually.
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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 combobox.
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* @slot clear-icon - An icon to use in lieu of the default clear icon.
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* @slot expand-icon - The icon to show when the control is expanded and collapsed. Rotates on open and close.
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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-change - Emitted when the control's value changes.
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* @event sl-clear - Emitted when the control's value is cleared.
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* @event sl-input - Emitted when the control receives input.
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* @event sl-focus - Emitted when the control gains focus.
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* @event sl-blur - Emitted when the control loses focus.
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* @event sl-show - Emitted when the select's menu opens.
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* @event sl-after-show - Emitted after the select's menu opens and all animations are complete.
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* @event sl-hide - Emitted when the select's menu closes.
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* @event sl-after-hide - Emitted after the select's menu closes and all animations are complete.
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* @event sl-invalid - Emitted when the form control has been checked for validity and its constraints aren't satisfied.
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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 select's wrapper.
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* @csspart form-control-help-text - The help text's wrapper.
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* @csspart combobox - The container the wraps the prefix, combobox, clear icon, and expand button.
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* @csspart prefix - The container that wraps the prefix slot.
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* @csspart display-input - The element that displays the selected option's label, an `<input>` element.
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* @csspart listbox - The listbox container where options are slotted.
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* @csspart tags - The container that houses option tags when `multiselect` is used.
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* @csspart tag - The individual tags that represent each multiselect option.
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* @csspart tag__base - The tag's base part.
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* @csspart tag__content - The tag's content part.
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* @csspart tag__remove-button - The tag's remove button.
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* @csspart tag__remove-button__base - The tag's remove button base part.
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* @csspart clear-button - The clear button.
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* @csspart expand-icon - The container that wraps the expand icon.
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*/
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export default class SlSelect extends ShoelaceElement implements ShoelaceFormControl {
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static styles: CSSResultGroup;
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static dependencies: {
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'sl-icon': typeof SlIcon;
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'sl-popup': typeof SlPopup;
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'sl-tag': typeof SlTag;
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};
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private readonly formControlController;
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private readonly hasSlotController;
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private readonly localize;
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private typeToSelectString;
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private typeToSelectTimeout;
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private closeWatcher;
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popup: SlPopup;
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combobox: HTMLSlotElement;
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displayInput: HTMLInputElement;
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valueInput: HTMLInputElement;
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listbox: HTMLSlotElement;
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private hasFocus;
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displayLabel: string;
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currentOption: SlOption;
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selectedOptions: SlOption[];
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/** The name of the select, submitted as a name/value pair with form data. */
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name: string;
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/**
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* The current value of the select, submitted as a name/value pair with form data. When `multiple` is enabled, the
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* value attribute will be a space-delimited list of values based on the options selected, and the value property will
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* be an array. **For this reason, values must not contain spaces.**
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*/
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value: string | string[];
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/** The default value of the form control. Primarily used for resetting the form control. */
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defaultValue: string | string[];
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/** The select's size. */
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size: 'small' | 'medium' | 'large';
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/** Placeholder text to show as a hint when the select is empty. */
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placeholder: string;
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/** Allows more than one option to be selected. */
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multiple: boolean;
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/**
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* The maximum number of selected options to show when `multiple` is true. After the maximum, "+n" will be shown to
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* indicate the number of additional items that are selected. Set to 0 to remove the limit.
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*/
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maxOptionsVisible: number;
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/** Disables the select control. */
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disabled: boolean;
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/** Adds a clear button when the select is not empty. */
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clearable: boolean;
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/**
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* Indicates whether or not the select is open. You can toggle this attribute to show and hide the menu, or you can
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* use the `show()` and `hide()` methods and this attribute will reflect the select's open state.
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*/
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open: boolean;
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/**
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* Enable this option to prevent the listbox from being clipped when the component is placed inside a container with
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* `overflow: auto|scroll`. Hoisting uses a fixed positioning strategy that works in many, but not all, scenarios.
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*/
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hoist: boolean;
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/** Draws a filled select. */
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filled: boolean;
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/** Draws a pill-style select with rounded edges. */
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pill: boolean;
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/** The select's label. If you need to display HTML, use the `label` slot instead. */
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label: string;
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/**
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* The preferred placement of the select's menu. Note that the actual placement may vary as needed to keep the listbox
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* inside of the viewport.
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*/
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placement: 'top' | 'bottom';
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/** The select's help text. If you need to display HTML, use the `help-text` slot instead. */
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helpText: string;
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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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form: string;
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/** The select's required attribute. */
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required: boolean;
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/**
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* A function that customizes the tags to be rendered when multiple=true. The first argument is the option, the second
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* is the current tag's index. The function should return either a Lit TemplateResult or a string containing trusted HTML of the symbol to render at
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* the specified value.
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*/
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getTag: (option: SlOption, index: number) => TemplateResult | string | HTMLElement;
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/** Gets the validity state object */
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get validity(): ValidityState;
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/** Gets the validation message */
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get validationMessage(): string;
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connectedCallback(): void;
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private addOpenListeners;
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private removeOpenListeners;
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private handleFocus;
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private handleBlur;
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private handleDocumentFocusIn;
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private handleDocumentKeyDown;
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private handleDocumentMouseDown;
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private handleLabelClick;
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private handleComboboxMouseDown;
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private handleComboboxKeyDown;
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private handleClearClick;
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private handleClearMouseDown;
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private handleOptionClick;
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private handleDefaultSlotChange;
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private handleTagRemove;
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private getAllOptions;
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private getFirstOption;
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private setCurrentOption;
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private setSelectedOptions;
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private toggleOptionSelection;
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private selectionChanged;
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protected get tags(): TemplateResult<1>[];
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private handleInvalid;
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handleDisabledChange(): void;
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handleValueChange(): void;
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handleOpenChange(): Promise<void>;
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/** Shows the listbox. */
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show(): Promise<void>;
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/** Hides the listbox. */
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hide(): Promise<void>;
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/** Checks for validity but does not show a validation message. Returns `true` when valid and `false` when invalid. */
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checkValidity(): boolean;
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/** Gets the associated form, if one exists. */
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getForm(): HTMLFormElement | null;
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/** Checks for validity and shows the browser's validation message if the control is invalid. */
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reportValidity(): boolean;
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/** Sets a custom validation message. Pass an empty string to restore validity. */
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setCustomValidity(message: string): void;
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/** Sets focus on the control. */
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focus(options?: FocusOptions): void;
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/** Removes focus from the control. */
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blur(): void;
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render(): TemplateResult<1>;
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}
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