UI Editor for light card (#2232)

* UI Editor for `light` card

* Remove `id`

src/panels/lovelace/cards/hui-light-card.ts

@@ -10,7 +10,7 @@ import { fireEvent } from "../../../common/dom/fire_event";
 import { styleMap } from "lit-html/directives/styleMap";
 import { HomeAssistant, LightEntity } from "../../../types";
 import { hassLocalizeLitMixin } from "../../../mixins/lit-localize-mixin";
-import { LovelaceCard } from "../types";
+import { LovelaceCard, LovelaceCardEditor } from "../types";
 import { LovelaceCardConfig } from "../../../data/lovelace";
 import { longPress } from "../common/directives/long-press-directive";
 import { hasConfigOrEntityChanged } from "../common/has-changed";
@@ -38,7 +38,7 @@ const lightConfig = {
   showTooltip: false,
 };
 
-interface Config extends LovelaceCardConfig {
+export interface Config extends LovelaceCardConfig {
   entity: string;
   name?: string;
   theme?: string;
@@ -46,6 +46,14 @@ interface Config extends LovelaceCardConfig {
 
 export class HuiLightCard extends hassLocalizeLitMixin(LitElement)
   implements LovelaceCard {
+  public static async getConfigElement(): Promise<LovelaceCardEditor> {
+    await import("../editor/config-elements/hui-light-card-editor");
+    return document.createElement("hui-light-card-editor");
+  }
+  public static getStubConfig(): object {
+    return {};
+  }
+
   public hass?: HomeAssistant;
   private _config?: Config;
   private _brightnessTimout?: number;

src/panels/lovelace/editor/config-elements/hui-light-card-editor.ts

@@ -0,0 +1,110 @@
+import { html, LitElement, PropertyDeclarations } from "@polymer/lit-element";
+import { TemplateResult } from "lit-html";
+import { struct } from "../../common/structs/struct";
+import "@polymer/paper-input/paper-input";
+
+import { EntitiesEditorEvent, EditorTarget } from "../types";
+import { hassLocalizeLitMixin } from "../../../../mixins/lit-localize-mixin";
+import { HomeAssistant } from "../../../../types";
+import { LovelaceCardEditor } from "../../types";
+import { fireEvent } from "../../../../common/dom/fire_event";
+import { Config } from "../../cards/hui-light-card";
+import { configElementStyle } from "./config-elements-style";
+
+import "../../components/hui-theme-select-editor";
+import "../../components/hui-entity-editor";
+
+const cardConfigStruct = struct({
+  type: "string",
+  name: "string?",
+  entity: "string?",
+  theme: "string?",
+});
+
+export class HuiLightCardEditor extends hassLocalizeLitMixin(LitElement)
+  implements LovelaceCardEditor {
+  public hass?: HomeAssistant;
+  private _config?: Config;
+
+  public setConfig(config: Config): void {
+    config = cardConfigStruct(config);
+
+    this._config = { type: "light", ...config };
+  }
+
+  static get properties(): PropertyDeclarations {
+    return { hass: {}, _config: {}, _configEntities: {} };
+  }
+
+  get _name(): string {
+    return this._config!.name || "";
+  }
+
+  get _theme(): string {
+    return this._config!.theme || "default";
+  }
+
+  get _entity(): string {
+    return this._config!.entity || "";
+  }
+
+  protected render(): TemplateResult {
+    if (!this.hass) {
+      return html``;
+    }
+
+    return html`
+      ${configElementStyle}
+      <div class="card-config">
+        <paper-input
+          label="Name"
+          value="${this._name}"
+          .configValue="${"name"}"
+          @value-changed="${this._valueChanged}"
+        ></paper-input>
+        <div class="side-by-side">
+          <ha-entity-picker
+            .hass="${this.hass}"
+            .value="${this._entity}"
+            .configValue=${"entity"}
+            .domainFilter=${"light"}
+            @change="${this._valueChanged}"
+            allow-custom-entity
+          ></ha-entity-picker>
+          <hui-theme-select-editor
+            .hass="${this.hass}"
+            .value="${this._theme}"
+            .configValue="${"theme"}"
+            @theme-changed="${this._valueChanged}"
+          ></hui-theme-select-editor>
+        </div>
+      </div>
+    `;
+  }
+
+  private _valueChanged(ev: EntitiesEditorEvent): void {
+    if (!this._config || !this.hass) {
+      return;
+    }
+    const target = ev.target! as EditorTarget;
+
+    if (this[`_${target.configValue}`] === target.value) {
+      return;
+    }
+    if (target.configValue) {
+      this._config = {
+        ...this._config,
+        [target.configValue!]: target.value,
+      };
+    }
+    fireEvent(this, "config-changed", { config: this._config });
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "hui-light-card-editor": HuiLightCardEditor;
+  }
+}
+
+customElements.define("hui-light-card-editor", HuiLightCardEditor);