Home Assistant Multi-Entity Selector

A reusable web component for selecting and managing multiple entities in Home Assistant custom cards. It mimics the "entities" home-assistant card configuration screen.

Features

• Select multiple Home Assistant entities
• Drag and drop reordering of entities
• Edit entity display names and icons
• Prevent duplicate entity selections
• Fully compatible with Home Assistant's design system
• Easy to integrate into any custom card

Installation

npm i @kipk/ha-multi-entity-selector

Usage

Basic Usage

import { MultiEntitySelector } from 'ha-multi-entity-selector';

// The component is automatically registered as 'multi-entity-selector'

// In your render method:
render() {
  return html`
    <multi-entity-selector
      .hass=${this.hass}
      .entities=${this.config.entities || []}
      label="Select Entities"
      @entities-changed=${this._entitiesChanged}
    ></multi-entity-selector>
  `;
}

// Handle changes
_entitiesChanged(ev) {
  const entities = ev.detail.entities;
  // Do something with the updated entities
  console.log('Entities updated:', entities);
}

Input Format

The component accepts an array of entity IDs (strings) or entity configuration objects:

// Simple format with just entity IDs
const entities = [
  'light.living_room',
  'switch.tv',
  'sensor.temperature'
];

// Advanced format with additional configuration
const entitiesWithConfig = [
  'light.living_room',
  {
    entity: 'switch.tv',
    name: 'Television',
    icon: 'mdi:television'
  },
  'sensor.temperature'
];

Output Format

The component always outputs an array of entity configuration objects through the entities-changed event:

// Output format
[
  { entity: 'light.living_room' },
  { entity: 'switch.tv', name: 'Television', icon: 'mdi:television' },
  { entity: 'sensor.temperature' }
]

Properties

Property	Type	Description
hass	HomeAssistant	Home Assistant object (required)
entities	(string | EntityConfig)[]	Array of entity IDs or configuration objects
label	string	Optional label for the component

Events

Event	Detail	Description
entities-changed	{ entities: EntityConfig[] }	Fired when the entities array changes

Types

interface EntityConfig {
  entity?: string;  // Entity ID
  name?: string;    // Display name
  icon?: string;    // Icon (mdi:icon-name format)
  type?: string;    // For special row types
  [key: string]: any; // Other properties
}

Dependencies

This component requires the following Home Assistant components to be available:

• ha-form
• ha-icon-button
• ha-entity-picker
• ha-dialog
• ha-sortable
• ha-svg-icon
• mwc-button

These components are automatically loaded by the package when used in a Home Assistant environment.

Development

Setup

git clone [repository-url]
cd ha-multi-entity-selector
npm install

Build

npm run build

Run Demo

npm start

License

MIT