Better fix for Safari IBD bug (#9514)

* Better fix for Safari IBD bug

* comment

src/components/ha-gauge.ts

@@ -6,9 +6,7 @@ import { formatNumber } from "../common/string/format_number";
 import { afterNextRender } from "../common/util/render-status";
 import { FrontendLocaleData } from "../data/translation";
 import { getValueInPercentage, normalize } from "../util/calculate";
-
-// Workaround for https://github.com/home-assistant/frontend/issues/6467
-const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
+import { isSafari } from "../util/is_safari";
 
 const getAngle = (value: number, min: number, max: number) => {
   const percentage = getValueInPercentage(normalize(value, min, max), min, max);
@@ -70,6 +68,7 @@ export class Gauge extends LitElement {
           )}
         >
         ${
+          // Workaround for https://github.com/home-assistant/frontend/issues/6467
           isSafari
             ? svg`<animateTransform
                 attributeName="transform"

src/data/iconsets.ts

@@ -2,6 +2,7 @@ import { clear, get, set, createStore, promisifyRequest } from "idb-keyval";
 import { promiseTimeout } from "../common/util/promise-timeout";
 import { iconMetadata } from "../resources/icon-metadata";
 import { IconMeta } from "../types";
+import { isSafari } from "../util/is_safari";
 
 export interface Icons {
   [key: string]: string;
@@ -28,8 +29,7 @@ export const getIcon = (iconName: string) =>
       return;
     }
 
-    promiseTimeout(
-      1000,
+    const readIcons = () =>
       iconStore("readonly", (store) => {
         for (const [iconName_, resolve_, reject_] of toRead) {
           promisifyRequest<string | undefined>(store.get(iconName_))
@@ -37,8 +37,24 @@ export const getIcon = (iconName: string) =>
             .catch((e) => reject_(e));
         }
         toRead = [];
+      });
+
+    let readIconPromise: Promise<void>;
+
+    if (isSafari && (indexedDB as any).databases) {
+      let intervalId: number;
+      readIconPromise = new Promise<void>((resolveTry) => {
+        const tryIdb = () => (indexedDB as any).databases().finally(resolveTry);
+        intervalId = window.setInterval(tryIdb, 100);
+        tryIdb();
       })
-    ).catch((e) => {
+        .then(() => readIcons())
+        .finally(() => clearInterval(intervalId));
+    } else {
+      readIconPromise = readIcons();
+    }
+
+    promiseTimeout(1000, readIconPromise).catch((e) => {
       // Firefox in private mode doesn't support IDB
       // Safari sometime doesn't open the DB so we time out
       for (const [, , reject_] of toRead) {

src/util/is_safari.ts

@@ -0,0 +1,3 @@
+export const isSafari = /^((?!chrome|android).)*safari/i.test(
+  navigator.userAgent
+);