Add support for service section icons (#21806)

* Add support for service section icons

* remove backwards compatibility core handles it

* Update icons.ts

src/components/ha-expansion-panel.ts

@@ -68,8 +68,8 @@ export class HaExpansionPanel extends LitElement {
                 ></ha-svg-icon>
               `
             : ""}
+          <slot name="icons"></slot>
         </div>
-        <slot name="icons"></slot>
       </div>
       <div
         class="container ${classMap({ expanded: this.expanded })}"

src/components/ha-service-control.ts

@@ -44,6 +44,7 @@ import "./ha-service-picker";
 import "./ha-settings-row";
 import "./ha-yaml-editor";
 import type { HaYamlEditor } from "./ha-yaml-editor";
+import "./ha-service-section-icon";
 
 const attributeFilter = (values: any[], attribute: any) => {
   if (typeof attribute === "object") {
@@ -496,12 +497,18 @@ export class HaServiceControl extends LitElement {
                 ) ||
                 dataField.name ||
                 dataField.key}
-              >
-                ${this._renderSectionDescription(
+                .secondary=${this._getSectionDescription(
                   dataField,
                   domain,
                   serviceName
                 )}
+              >
+                <ha-service-section-icon
+                  slot="icons"
+                  .hass=${this.hass}
+                  .service=${this._value!.action}
+                  .section=${dataField.key}
+                ></ha-service-section-icon>
                 ${Object.entries(dataField.fields).map(([key, field]) =>
                   this._renderField(
                     { key, ...field },
@@ -522,20 +529,14 @@ export class HaServiceControl extends LitElement {
         )} `;
   }
 
-  private _renderSectionDescription(
+  private _getSectionDescription(
     dataField: ExtHassService["fields"][number],
     domain: string | undefined,
     serviceName: string | undefined
   ) {
-    const description = this.hass!.localize(
+    return this.hass!.localize(
       `component.${domain}.services.${serviceName}.sections.${dataField.key}.description`
     );
-
-    if (!description) {
-      return nothing;
-    }
-
-    return html`<p>${description}</p>`;
   }
 
   private _renderField = (

src/components/ha-service-section-icon.ts

@@ -0,0 +1,53 @@
+import { html, LitElement, nothing } from "lit";
+import { customElement, property } from "lit/decorators";
+import { until } from "lit/directives/until";
+import { HomeAssistant } from "../types";
+import "./ha-icon";
+import "./ha-svg-icon";
+import { serviceSectionIcon } from "../data/icons";
+
+@customElement("ha-service-section-icon")
+export class HaServiceSectionIcon extends LitElement {
+  @property({ attribute: false }) public hass!: HomeAssistant;
+
+  @property() public service?: string;
+
+  @property() public section?: string;
+
+  @property() public icon?: string;
+
+  protected render() {
+    if (this.icon) {
+      return html`<ha-icon .icon=${this.icon}></ha-icon>`;
+    }
+
+    if (!this.service || !this.section) {
+      return nothing;
+    }
+
+    if (!this.hass) {
+      return this._renderFallback();
+    }
+
+    const icon = serviceSectionIcon(this.hass, this.service, this.section).then(
+      (icn) => {
+        if (icn) {
+          return html`<ha-icon .icon=${icn}></ha-icon>`;
+        }
+        return this._renderFallback();
+      }
+    );
+
+    return html`${until(icon)}`;
+  }
+
+  private _renderFallback() {
+    return nothing;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-service-section-icon": HaServiceSectionIcon;
+  }
+}

src/data/icons.ts

@@ -62,7 +62,7 @@ export interface ComponentIcons {
 }
 
 interface ServiceIcons {
-  [service: string]: string;
+  [service: string]: { service: string; sections?: { [name: string]: string } };
 }
 
 export type IconCategory = "entity" | "entity_component" | "services";
@@ -288,7 +288,8 @@ export const serviceIcon = async (
   const serviceName = computeObjectId(service);
   const serviceIcons = await getServiceIcons(hass, domain);
   if (serviceIcons) {
-    icon = serviceIcons[serviceName] as string;
+    const srvceIcon = serviceIcons[serviceName] as ServiceIcons[string];
+    icon = srvceIcon?.service;
   }
   if (!icon) {
     icon = await domainIcon(hass, domain);
@@ -296,6 +297,21 @@ export const serviceIcon = async (
   return icon;
 };
 
+export const serviceSectionIcon = async (
+  hass: HomeAssistant,
+  service: string,
+  section: string
+): Promise<string | undefined> => {
+  const domain = computeDomain(service);
+  const serviceName = computeObjectId(service);
+  const serviceIcons = await getServiceIcons(hass, domain);
+  if (serviceIcons) {
+    const srvceIcon = serviceIcons[serviceName] as ServiceIcons[string];
+    return srvceIcon?.sections?.[section];
+  }
+  return undefined;
+};
+
 export const domainIcon = async (
   hass: HomeAssistant,
   domain: string,