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Add switch bar (#14429)
* Add basic swich support * Add color and reversed state * Fix slotted icon * Update gallery/src/pages/components/ha-bar-switch.ts Co-authored-by: Bram Kragten <mail@bramkragten.nl> Co-authored-by: Bram Kragten <mail@bramkragten.nl>
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Paul Bottein
GitHub
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gallery/src/pages/components/ha-bar-switch.markdown
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gallery/src/pages/components/ha-bar-switch.markdown
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---
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title: Bar Switches
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---
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145
gallery/src/pages/components/ha-bar-switch.ts
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145
gallery/src/pages/components/ha-bar-switch.ts
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import {
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mdiGarage,
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mdiGarageOpen,
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mdiLightbulb,
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mdiLightbulbOff,
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} from "@mdi/js";
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import { css, html, LitElement, TemplateResult } from "lit";
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import { customElement, state } from "lit/decorators";
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import { ifDefined } from "lit/directives/if-defined";
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import { repeat } from "lit/directives/repeat";
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import "../../../../src/components/ha-bar-switch";
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import "../../../../src/components/ha-card";
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const switches: {
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id: string;
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label: string;
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class?: string;
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reversed?: boolean;
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disabled?: boolean;
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}[] = [
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{
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id: "switch",
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label: "Switch",
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},
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{
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id: "switch-reversed",
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label: "Switch Reversed",
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reversed: true,
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},
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{
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id: "switch-custom",
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label: "Switch and custom style",
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class: "custom",
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},
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{
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id: "switch-disabled",
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label: "Disabled Switch",
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disabled: true,
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},
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];
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@customElement("demo-components-ha-bar-switch")
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export class DemoHaBarSwitch extends LitElement {
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@state() private checked = false;
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handleValueChanged(e: any) {
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this.checked = e.target.checked as boolean;
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}
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protected render(): TemplateResult {
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return html`
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${repeat(switches, (sw) => {
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const { id, label, ...config } = sw;
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return html`
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<ha-card>
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<div class="card-content">
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<label id=${id}>${label}</label>
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<pre>Config: ${JSON.stringify(config)}</pre>
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<ha-bar-switch
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.checked=${this.checked}
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class=${ifDefined(config.class)}
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@change=${this.handleValueChanged}
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.pathOn=${mdiLightbulb}
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.pathOff=${mdiLightbulbOff}
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aria-labelledby=${id}
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disabled=${ifDefined(config.disabled)}
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reversed=${ifDefined(config.reversed)}
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>
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</ha-bar-switch>
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</div>
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</ha-card>
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`;
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})}
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<ha-card>
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<div class="card-content">
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<p class="title"><b>Vertical</b></p>
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<div class="vertical-switches">
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${repeat(switches, (sw) => {
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const { id, label, ...config } = sw;
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return html`
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<ha-bar-switch
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.checked=${this.checked}
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vertical
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class=${ifDefined(config.class)}
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@change=${this.handleValueChanged}
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aria-label=${label}
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.pathOn=${mdiGarageOpen}
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.pathOff=${mdiGarage}
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disabled=${ifDefined(config.disabled)}
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reversed=${ifDefined(config.reversed)}
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>
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</ha-bar-switch>
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`;
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})}
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</div>
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</div>
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</ha-card>
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`;
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}
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static get styles() {
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return css`
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ha-card {
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max-width: 600px;
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margin: 24px auto;
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}
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pre {
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margin-top: 0;
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margin-bottom: 8px;
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}
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p {
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margin: 0;
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}
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label {
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font-weight: 600;
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}
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.custom {
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--switch-bar-color-on: var(--rgb-green-color);
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--switch-bar-color-off: var(--rgb-red-color);
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--switch-bar-thickness: 100px;
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--switch-bar-border-radius: 24px;
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--switch-bar-padding: 6px;
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--mdc-icon-size: 24px;
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}
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.vertical-switches {
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height: 300px;
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display: flex;
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flex-direction: row;
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justify-content: space-between;
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}
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p.title {
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margin-bottom: 12px;
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}
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.vertical-switches > *:not(:last-child) {
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margin-right: 4px;
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}
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`;
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}
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}
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declare global {
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interface HTMLElementTagNameMap {
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"demo-components-ha-bar-switch": DemoHaBarSwitch;
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}
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}
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174
src/components/ha-bar-switch.ts
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174
src/components/ha-bar-switch.ts
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import {
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css,
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CSSResultGroup,
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html,
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LitElement,
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PropertyValues,
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TemplateResult,
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} from "lit";
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import { customElement, property } from "lit/decorators";
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import { fireEvent } from "../common/dom/fire_event";
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import "./ha-svg-icon";
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@customElement("ha-bar-switch")
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export class HaBarSwitch extends LitElement {
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@property({ type: Boolean, attribute: "disabled" })
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public disabled = false;
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@property({ type: Boolean })
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public vertical = false;
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@property({ type: Boolean })
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public reversed = false;
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@property({ type: Boolean, reflect: true })
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public checked?: boolean;
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// SVG icon path (if you need a non SVG icon instead, use the provided on icon slot to pass an <ha-icon slot="icon-on"> in)
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@property({ type: String }) pathOn?: string;
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// SVG icon path (if you need a non SVG icon instead, use the provided off icon slot to pass an <ha-icon slot="icon-off"> in)
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@property({ type: String }) pathOff?: string;
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protected firstUpdated(changedProperties: PropertyValues): void {
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super.firstUpdated(changedProperties);
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this.setAttribute("role", "switch");
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if (!this.hasAttribute("tabindex")) {
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this.setAttribute("tabindex", "0");
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}
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}
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protected updated(changedProps: PropertyValues) {
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super.updated(changedProps);
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if (changedProps.has("value")) {
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this.setAttribute("aria-checked", this.checked ? "true" : "false");
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}
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}
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private _toggle() {
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if (this.disabled) return;
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this.checked = !this.checked;
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fireEvent(this, "change");
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}
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connectedCallback(): void {
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super.connectedCallback();
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this.addEventListener("keydown", this._keydown);
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this.addEventListener("click", this._toggle);
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}
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disconnectedCallback(): void {
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super.disconnectedCallback();
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this.removeEventListener("keydown", this._keydown);
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this.removeEventListener("click", this._toggle);
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}
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private _keydown(ev: any) {
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if (ev.key !== "Enter" && ev.key !== " ") {
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return;
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}
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ev.preventDefault();
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this._toggle();
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}
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protected render(): TemplateResult {
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return html`
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<div class="switch">
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<div class="button" aria-hidden="true">
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${this.checked
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? this.pathOn
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? html`<ha-svg-icon .path=${this.pathOn}></ha-svg-icon>`
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: html`<slot name="icon-on"></slot>`
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: this.pathOff
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? html`<ha-svg-icon .path=${this.pathOff}></ha-svg-icon>`
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: html`<slot name="icon-off"></slot>`}
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</div>
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</div>
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`;
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}
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static get styles(): CSSResultGroup {
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return css`
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:host {
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display: block;
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--switch-bar-color-on: var(--rgb-primary-color);
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--switch-bar-color-off: var(--rgb-disabled-color);
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--switch-bar-thickness: 40px;
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--switch-bar-border-radius: 12px;
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--switch-bar-padding: 4px;
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--mdc-icon-size: 20px;
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height: var(--switch-bar-thickness);
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width: 100%;
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box-sizing: border-box;
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user-select: none;
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cursor: pointer;
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}
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.switch {
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box-sizing: border-box;
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position: relative;
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height: 100%;
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width: 100%;
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border-radius: var(--switch-bar-border-radius);
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background-color: rgba(var(--switch-bar-color-off), 0.3);
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padding: var(--switch-bar-padding);
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transition: background-color 180ms ease-in-out;
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display: flex;
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}
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.switch .button {
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width: 50%;
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height: 100%;
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background: lightgrey;
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border-radius: calc(
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var(--switch-bar-border-radius) - var(--switch-bar-padding)
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);
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transition: transform 180ms ease-in-out,
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background-color 180ms ease-in-out;
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background-color: rgb(var(--switch-bar-color-off));
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color: white;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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:host([checked]) .switch {
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background-color: rgba(var(--switch-bar-color-on), 0.3);
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}
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:host([checked]) .switch .button {
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transform: translateX(100%);
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background-color: rgb(var(--switch-bar-color-on));
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}
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:host([reversed]) .switch {
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flex-direction: row-reverse;
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}
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:host([reversed][checked]) .switch .button {
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transform: translateX(-100%);
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}
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:host([vertical]) {
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width: var(--switch-bar-thickness);
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height: 100%;
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}
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:host([vertical][checked]) .switch .button {
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transform: translateY(100%);
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}
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:host([vertical]) .switch .button {
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width: 100%;
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height: 50%;
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}
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:host([vertical][reversed]) .switch {
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flex-direction: column-reverse;
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}
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:host([vertical][reversed][checked]) .switch .button {
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transform: translateY(-100%);
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}
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:host([disabled]) {
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opacity: 0.5;
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cursor: not-allowed;
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}
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`;
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}
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}
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declare global {
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interface HTMLElementTagNameMap {
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"ha-bar-switch": HaBarSwitch;
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}
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}
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