@carbon/ibm-products-web-components/es/components/add-select/add-select-content.js

Carbon for IBM Products Web Components

/**
 * Copyright IBM Corp. 2020, 2026
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */

import "../../globals/settings.js";
import { __decorate } from "../../_virtual/_@oxc-project_runtime@0.127.0/helpers/decorate.js";
import add_select_content_default$1 from "./add-select-content.scss.js";
import { classMap } from "lit/directives/class-map.js";
import { LitElement, html } from "lit";
import { carbonElement } from "@carbon/web-components/es/globals/decorators/carbon-element.js";
//#region src/components/add-select/add-select-content.ts
/**
* @license
*
* Copyright IBM Corp. 2026
*
* This source code is licensed under the Apache-2.0 license found in the
* LICENSE file in the root directory of this source tree.
*/
const blockClass = `c4p--add-select__next-list`;
/**
* Add Select Content component - contains the list of selectable items
* @element c4p-add-select-content
* @slot default - Contains c4p-add-select-row components
*/
let CDSAddSelectContent = class CDSAddSelectContent extends LitElement {
	constructor(..._args) {
		super(..._args);
		this._focusedIndex = 0;
		this._hasKeyboardInteraction = false;
	}
	/**
	* Whether this is a multi-select list (inherited from parent c4p-add-select)
	* @private
	*/
	get _multi() {
		return this.closest(`c4p-add-select`)?.multi ?? false;
	}
	/**
	* Get all item elements
	*/
	_getItems() {
		const slot = this.shadowRoot?.querySelector("slot");
		if (!slot) return [];
		return slot.assignedElements({ flatten: true }).filter((el) => el.tagName.toLowerCase() === `c4p-add-select-row`);
	}
	/**
	* Update focus on items - only one item should have tabindex="0"
	*/
	_updateItemFocus(focusIndex, shouldFocus = true) {
		const items = this._getItems();
		if (items.length === 0) return;
		this._focusedIndex = Math.max(0, Math.min(focusIndex, items.length - 1));
		items.forEach((item, index) => {
			if (index === this._focusedIndex) {
				item.setAttribute("tabindex", "0");
				if (shouldFocus) item.focus();
			} else item.setAttribute("tabindex", "-1");
		});
	}
	/**
	* Handle keyboard navigation
	*/
	_handleKeyDown(event) {
		const items = this._getItems();
		if (items.length === 0) return;
		this._hasKeyboardInteraction = true;
		const currentItem = items[this._focusedIndex];
		let handled = false;
		switch (event.key) {
			case "ArrowDown":
				event.preventDefault();
				this._updateItemFocus(this._focusedIndex + 1);
				handled = true;
				break;
			case "ArrowUp":
				event.preventDefault();
				this._updateItemFocus(this._focusedIndex - 1);
				handled = true;
				break;
			case "ArrowRight":
				if (currentItem && currentItem.hasAttribute("has-children")) {
					event.preventDefault();
					const navigateEvent = new CustomEvent("c4p-add-select-row-navigate", {
						bubbles: true,
						composed: true,
						detail: {
							itemId: currentItem.getAttribute("item-id"),
							title: currentItem.getAttribute("title"),
							parentId: currentItem.getAttribute("parent-id") || ""
						}
					});
					currentItem.dispatchEvent(navigateEvent);
					handled = true;
				}
				break;
			case "Enter":
			case " ":
				event.preventDefault();
				if (currentItem) {
					const newSelected = !currentItem.hasAttribute("selected");
					if (newSelected) currentItem.setAttribute("selected", "");
					else currentItem.removeAttribute("selected");
					const selectEvent = new CustomEvent("c4p-add-select-row-select", {
						bubbles: true,
						composed: true,
						detail: {
							itemId: currentItem.getAttribute("item-id"),
							selected: newSelected,
							value: currentItem.getAttribute("value")
						}
					});
					currentItem.dispatchEvent(selectEvent);
				}
				handled = true;
				break;
			case "Home":
				if (event.ctrlKey) {
					event.preventDefault();
					this._updateItemFocus(0);
					handled = true;
				}
				break;
			case "End":
				if (event.ctrlKey) {
					event.preventDefault();
					this._updateItemFocus(items.length - 1);
					handled = true;
				}
				break;
		}
		if (handled) event.stopPropagation();
	}
	/**
	* Initialize focus management after first update
	*/
	firstUpdated() {
		this._updateItemFocus(0, false);
	}
	/**
	* Handle slot change to update focus management
	*/
	_handleSlotChange() {
		const items = this._getItems();
		if (items.length > 0) {
			if (this._focusedIndex >= items.length) this._focusedIndex = 0;
			this._updateItemFocus(this._focusedIndex, this._hasKeyboardInteraction);
		}
	}
	/**
	* Update lifecycle - ensure focus is maintained when items change
	*/
	updated(changedProperties) {
		super.updated(changedProperties);
		const items = this._getItems();
		if (items.length > 0) {
			if (!items.some((item) => item.getAttribute("tabindex") === "0")) this._updateItemFocus(0, this._hasKeyboardInteraction);
		}
	}
	render() {
		const { _handleKeyDown: handleKeyDown, _handleSlotChange: handleSlotChange } = this;
		return html`
      <div
        class=${classMap({ [`${blockClass}-list`]: true })}
        role="grid"
        aria-multiselectable=${this._multi}
        tabindex="0"
        @keydown=${handleKeyDown}
      >
        <div class="${blockClass}-list-body">
          <slot @slotchange=${handleSlotChange}></slot>
        </div>
      </div>
    `;
	}
	static {
		this.styles = add_select_content_default$1;
	}
};
CDSAddSelectContent = __decorate([carbonElement(`c4p-add-select-content`)], CDSAddSelectContent);
var add_select_content_default = CDSAddSelectContent;
//#endregion
export { add_select_content_default as default };

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