Prevent wrap of menu items

.browserslistrc

@@ -1,25 +1,28 @@
 [modern]
-# Modern builds target recent browsers supporting the latest features to minimize transpilation, polyfills, etc.
+# Support for dynamic import is the main litmus test for serving modern builds.
-# It is served to browsers meeting the following requirements:
+# Although officially a ES2020 feature, browsers implemented it early, so this
-# - released in the last year + current alpha/beta versions
+# enables all of ES2017 and some features in ES2018.
-# - Firefox extended support release (ESR)
+supports es6-module-dynamic-import
-# - with global utilization at or above 0.5%
+
-# - must support dynamic import of ES modules
+# Exclude Safari 11-12 because of a bug in tagged template literals
-# - exclude browsers no longer being maintained
+# https://bugs.webkit.org/show_bug.cgi?id=190756
-# - exclude KaiOS, QQ, and UC browsers due to lack of sufficient feature support data
+# Note: Dropping version 11 also enables several more ES2018 features
-unreleased versions
+not Safari < 13
-last 1 year
+not iOS < 13
-Firefox ESR
+
->= 0.5% and supports es6-module-dynamic-import
+# Exclude KaiOS, QQ, and UC browsers due to lack of sufficient feature support data
-not dead
+# Babel ignores these automatically, but we need here for Webpack to output ESM with dynamic imports
 not KaiOS > 0
 not QQAndroid > 0
 not UCAndroid > 0
 
+# Exclude unsupported browsers
+not dead
+
 [legacy]
 # Legacy builds are served when modern requirements are not met and support browsers:
 # - released in the last 7 years + current alpha/beta versionss
-# - with global utilization at or above 0.05%
+# - with global utilization above 0.05%
 # The lattermost query ensures that support for popular old browsers is not dropped too early
 # (e.g. IE 11, Android 4.4, or Samsung 4).
 #
@@ -33,10 +36,4 @@ not UCAndroid > 0
 # As of May 2023, only web sockets must be added to the query.
 unreleased versions
 last 7 years
->= 0.05% and supports websockets
+> 0.05% and supports websockets
-
-[legacy-sw]
-# Same as legacy plus supports service workers
-unreleased versions
-last 7 years
->= 0.05% and supports websockets and supports serviceworkers

.devcontainer/devcontainer.json

@@ -8,7 +8,6 @@
   "postCreateCommand": "sudo apt update && sudo apt upgrade -y && sudo apt install -y libpcap-dev",
   "postStartCommand": "script/bootstrap",
   "containerEnv": {
-    "DEV_CONTAINER": "1",
     "WORKSPACE_DIRECTORY": "${containerWorkspaceFolder}"
   },
   "customizations": {

.eslintrc.json

@@ -0,0 +1,130 @@
+{
+  "extends": [
+    "airbnb-base",
+    "airbnb-typescript/base",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:wc/recommended",
+    "plugin:lit/all",
+    "plugin:lit-a11y/recommended",
+    "prettier"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": 2020,
+    "ecmaFeatures": {
+      "modules": true
+    },
+    "sourceType": "module",
+    "project": "./tsconfig.json"
+  },
+  "settings": {
+    "import/resolver": {
+      "webpack": {
+        "config": "./webpack.config.cjs"
+      }
+    }
+  },
+  "globals": {
+    "__DEV__": false,
+    "__DEMO__": false,
+    "__BUILD__": false,
+    "__VERSION__": false,
+    "__STATIC_PATH__": false,
+    "__SUPERVISOR__": false,
+    "Polymer": true
+  },
+  "env": {
+    "browser": true,
+    "es6": true
+  },
+  "rules": {
+    "class-methods-use-this": "off",
+    "new-cap": "off",
+    "prefer-template": "off",
+    "object-shorthand": "off",
+    "func-names": "off",
+    "no-underscore-dangle": "off",
+    "strict": "off",
+    "no-plusplus": "off",
+    "no-bitwise": "error",
+    "comma-dangle": "off",
+    "vars-on-top": "off",
+    "no-continue": "off",
+    "no-param-reassign": "off",
+    "no-multi-assign": "off",
+    "no-console": "error",
+    "radix": "off",
+    "no-alert": "off",
+    "no-nested-ternary": "off",
+    "prefer-destructuring": "off",
+    "no-restricted-globals": [2, "event"],
+    "prefer-promise-reject-errors": "off",
+    "import/prefer-default-export": "off",
+    "import/no-default-export": "off",
+    "import/no-unresolved": "off",
+    "import/no-cycle": "off",
+    "import/extensions": [
+      "error",
+      "ignorePackages",
+      {
+        "ts": "never",
+        "js": "never"
+      }
+    ],
+    "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
+    "object-curly-newline": "off",
+    "default-case": "off",
+    "wc/no-self-class": "off",
+    "no-shadow": "off",
+    "@typescript-eslint/camelcase": "off",
+    "@typescript-eslint/ban-ts-comment": "off",
+    "@typescript-eslint/no-use-before-define": "off",
+    "@typescript-eslint/no-non-null-assertion": "off",
+    "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/explicit-function-return-type": "off",
+    "@typescript-eslint/explicit-module-boundary-types": "off",
+    "@typescript-eslint/no-shadow": ["error"],
+    "@typescript-eslint/naming-convention": [
+      "off",
+      {
+        "selector": "default",
+        "format": ["camelCase", "snake_case"],
+        "leadingUnderscore": "allow",
+        "trailingUnderscore": "allow"
+      },
+      {
+        "selector": ["variable"],
+        "format": ["camelCase", "snake_case", "UPPER_CASE"],
+        "leadingUnderscore": "allow",
+        "trailingUnderscore": "allow"
+      },
+      {
+        "selector": "typeLike",
+        "format": ["PascalCase"]
+      }
+    ],
+    "@typescript-eslint/no-unused-vars": "off",
+    "unused-imports/no-unused-vars": [
+      "error",
+      {
+        "vars": "all",
+        "varsIgnorePattern": "^_",
+        "args": "after-used",
+        "argsIgnorePattern": "^_",
+        "ignoreRestSiblings": true
+      }
+    ],
+    "unused-imports/no-unused-imports": "error",
+    "lit/attribute-value-entities": "off",
+    "lit/no-template-map": "off",
+    "lit/no-native-attributes": "warn",
+    "lit/no-this-assign-in-render": "warn",
+    "lit-a11y/click-events-have-key-events": ["off"],
+    "lit-a11y/no-autofocus": "off",
+    "lit-a11y/alt-text": "warn",
+    "lit-a11y/anchor-is-valid": "warn",
+    "lit-a11y/role-has-required-aria-attrs": "warn"
+  },
+  "plugins": ["disable", "unused-imports"],
+  "processor": "disable/disable"
+}

.github/workflows/cast_deployment.yaml

@@ -21,12 +21,12 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
         with:
           ref: dev
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -57,12 +57,12 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
         with:
           ref: master
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn

.github/workflows/ci.yaml

@@ -24,9 +24,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -37,7 +37,7 @@ jobs:
       - name: Build resources
         run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data gather-gallery-pages
       - name: Setup lint cache
-        uses: actions/cache@v4.1.2
+        uses: actions/cache@v4.0.2
         with:
           path: |
             node_modules/.cache/prettier
@@ -58,9 +58,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -76,9 +76,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -89,7 +89,7 @@ jobs:
         env:
           IS_TEST: "true"
       - name: Upload bundle stats
-        uses: actions/upload-artifact@v4.4.3
+        uses: actions/upload-artifact@v4.3.1
         with:
           name: frontend-bundle-stats
           path: build/stats/*.json
@@ -100,9 +100,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -113,7 +113,7 @@ jobs:
         env:
           IS_TEST: "true"
       - name: Upload bundle stats
-        uses: actions/upload-artifact@v4.4.3
+        uses: actions/upload-artifact@v4.3.1
         with:
           name: supervisor-bundle-stats
           path: build/stats/*.json

.github/workflows/codeql-analysis.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
         with:
           # We must fetch at least the immediate parents so that if this is
           # a pull request then we can checkout the head.

.github/workflows/demo_deployment.yaml

@@ -22,12 +22,12 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
         with:
           ref: dev
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -58,12 +58,12 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
         with:
           ref: master
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn

.github/workflows/design_deployment.yaml

@@ -16,10 +16,10 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn

.github/workflows/design_preview.yaml

@@ -21,10 +21,10 @@ jobs:
     if: github.repository == 'home-assistant/frontend' && contains(github.event.pull_request.labels.*.name, 'needs design preview')
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn

.github/workflows/nightly.yaml

@@ -20,7 +20,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
         uses: actions/setup-python@v5
@@ -28,7 +28,7 @@ jobs:
           python-version: ${{ env.PYTHON_VERSION }}
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -57,14 +57,14 @@ jobs:
         run: tar -czvf translations.tar.gz translations
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4.4.3
+        uses: actions/upload-artifact@v4.3.1
         with:
           name: wheels
           path: dist/home_assistant_frontend*.whl
           if-no-files-found: error
 
       - name: Upload translations
-        uses: actions/upload-artifact@v4.4.3
+        uses: actions/upload-artifact@v4.3.1
         with:
           name: translations
           path: translations.tar.gz

.github/workflows/relative-ci.yaml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Send bundle stats and build information to RelativeCI
-        uses: relative-ci/agent-action@v2.1.13
+        uses: relative-ci/agent-action@v2.1.10
         with:
           key: ${{ secrets[format('RELATIVE_CI_KEY_{0}_{1}', matrix.bundle, matrix.build)] }}
           token: ${{ github.token }}

.github/workflows/release.yaml

@@ -23,7 +23,7 @@ jobs:
       contents: write # Required to upload release assets
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
 
       - name: Verify version
         uses: home-assistant/actions/helpers/verify-version@master
@@ -34,7 +34,7 @@ jobs:
           python-version: ${{ env.PYTHON_VERSION }}
 
       - name: Setup Node
-        uses: actions/setup-node@v4.1.0
+        uses: actions/setup-node@v4.0.2
         with:
           node-version-file: ".nvmrc"
           cache: yarn
@@ -55,7 +55,7 @@ jobs:
           script/release
 
       - name: Upload release assets
-        uses: softprops/action-gh-release@v2.1.0
+        uses: softprops/action-gh-release@v2.0.4
         with:
           files: |
             dist/*.whl
@@ -74,9 +74,9 @@ jobs:
           echo "home-assistant-frontend==$version" > ./requirements.txt
 
       - name: Build wheels
-        uses: home-assistant/wheels@2024.11.0
+        uses: home-assistant/wheels@2024.01.0
         with:
-          abi: cp312
+          abi: cp311
           tag: musllinux_1_2
           arch: amd64
           wheels-key: ${{ secrets.WHEELS_KEY }}

.github/workflows/translations.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v4.1.2
 
       - name: Upload Translations
         run: |

.husky/pre-commit

@@ -1 +1,4 @@
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
 yarn run lint-staged --relative --shell "/bin/bash"

.yarn/patches/sortablejs-npm-1.15.2-73347ae85a.patch

@@ -1,7 +1,16 @@
 diff --git a/modular/sortable.core.esm.js b/modular/sortable.core.esm.js
-index 8b5e49b011713c8859c669069fbe85ce53974e1d..6a0afc92787157b8a31c38cc5f67dfa526090a00 100644
+index 93ba17509e2e8583ab241fea6845fbe714c584a2..de0651ddb5dced30d36f7d764da0dd0b441f523f 100644
 --- a/modular/sortable.core.esm.js
 +++ b/modular/sortable.core.esm.js
+@@ -1461,7 +1461,7 @@ Sortable.prototype = /** @lends Sortable.prototype */{
+           }
+           target = parent; // store last element
+         }
+-        /* jshint boss:true */ while (parent = parent.parentNode);
++        /* jshint boss:true */ while (parent = parent.parentNode || parent.getRootNode().host);
+       }
+       _unhideGhostForTarget();
+     }
 @@ -1781,11 +1781,16 @@ Sortable.prototype = /** @lends Sortable.prototype */{
          }
          if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, !!target) !== false) {
@@ -24,7 +33,7 @@ index 8b5e49b011713c8859c669069fbe85ce53974e1d..6a0afc92787157b8a31c38cc5f67dfa5
            }
            parentEl = el; // actualization
  
-@@ -1802,7 +1807,12 @@ Sortable.prototype = /** @lends Sortable.prototype */{
+@@ -1802,7 +1807,13 @@ Sortable.prototype = /** @lends Sortable.prototype */{
          targetRect = getRect(target);
          if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, false) !== false) {
            capture();
@@ -35,10 +44,11 @@ index 8b5e49b011713c8859c669069fbe85ce53974e1d..6a0afc92787157b8a31c38cc5f67dfa5
 +          catch(err) {
 +            return completed(false);
 +          }
++          
            parentEl = el; // actualization
  
            changed();
-@@ -1849,10 +1859,15 @@ Sortable.prototype = /** @lends Sortable.prototype */{
+@@ -1849,12 +1860,17 @@ Sortable.prototype = /** @lends Sortable.prototype */{
            _silent = true;
            setTimeout(_unsilent, 30);
            capture();
@@ -46,6 +56,8 @@ index 8b5e49b011713c8859c669069fbe85ce53974e1d..6a0afc92787157b8a31c38cc5f67dfa5
 -            el.appendChild(dragEl);
 -          } else {
 -            target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
+-          }
+ 
 +          try {
 +            if (after && !nextSibling) {
 +              el.appendChild(dragEl);
@@ -55,6 +67,7 @@ index 8b5e49b011713c8859c669069fbe85ce53974e1d..6a0afc92787157b8a31c38cc5f67dfa5
 +          }
 +          catch(err) {
 +            return completed(false);
-           }
++          }
- 
            // Undo chrome's scroll adjustment (has no effect on other browsers)
+           if (scrolledPastTop) {
+             scrollBy(scrolledPastTop, 0, scrollBefore - scrolledPastTop.scrollTop);

.yarn/patches/workbox-build-npm-7.1.1-a854f3faae.patch

@@ -1,55 +0,0 @@
-diff --git a/build/inject-manifest.js b/build/inject-manifest.js
-index 60e3d2bb51c11a19fbbedbad65e101082ec41c36..fed6026630f43f86e25446383982cf6fb694313b 100644
---- a/build/inject-manifest.js
-+++ b/build/inject-manifest.js
-@@ -104,7 +104,7 @@ async function injectManifest(config) {
-             replaceString: manifestString,
-             searchString: options.injectionPoint,
-         });
--        filesToWrite[options.swDest] = source;
-+        filesToWrite[options.swDest] = source.replace(url, encodeURI(upath_1.default.basename(destPath)));
-         filesToWrite[destPath] = map;
-     }
-     else {
-diff --git a/build/lib/translate-url-to-sourcemap-paths.js b/build/lib/translate-url-to-sourcemap-paths.js
-index 3220c5474eeac6e8a56ca9b2ac2bd9be48529e43..5f003879a904d4840529a42dd056d288fd213771 100644
---- a/build/lib/translate-url-to-sourcemap-paths.js
-+++ b/build/lib/translate-url-to-sourcemap-paths.js
-@@ -22,7 +22,7 @@ function translateURLToSourcemapPaths(url, swSrc, swDest) {
-         const possibleSrcPath = upath_1.default.resolve(upath_1.default.dirname(swSrc), url);
-         if (fs_extra_1.default.existsSync(possibleSrcPath)) {
-             srcPath = possibleSrcPath;
--            destPath = upath_1.default.resolve(upath_1.default.dirname(swDest), url);
-+            destPath = `${swDest}.map`;
-         }
-         else {
-             warning = `${errors_1.errors['cant-find-sourcemap']} ${possibleSrcPath}`;
-diff --git a/src/inject-manifest.ts b/src/inject-manifest.ts
-index 8795ddcaa77aea7b0356417e4bc4b19e2b3f860c..fcdc68342d9ac53936c9ed40a9ccfc2f5070cad3 100644
---- a/src/inject-manifest.ts
-+++ b/src/inject-manifest.ts
-@@ -129,7 +129,10 @@ export async function injectManifest(
-       searchString: options.injectionPoint!,
-     });
- 
--    filesToWrite[options.swDest] = source;
-+    filesToWrite[options.swDest] = source.replace(
-+      url!,
-+      encodeURI(upath.basename(destPath)),
-+    );
-     filesToWrite[destPath] = map;
-   } else {
-     // If there's no sourcemap associated with swSrc, a simple string
-diff --git a/src/lib/translate-url-to-sourcemap-paths.ts b/src/lib/translate-url-to-sourcemap-paths.ts
-index 072eac40d4ef5d095a01cb7f7e392a9e034853bd..f0bbe69e88ef3a415de18a7e9cb264daea273d71 100644
---- a/src/lib/translate-url-to-sourcemap-paths.ts
-+++ b/src/lib/translate-url-to-sourcemap-paths.ts
-@@ -28,7 +28,7 @@ export function translateURLToSourcemapPaths(
-     const possibleSrcPath = upath.resolve(upath.dirname(swSrc), url);
-     if (fse.existsSync(possibleSrcPath)) {
-       srcPath = possibleSrcPath;
--      destPath = upath.resolve(upath.dirname(swDest), url);
-+      destPath = `${swDest}.map`;
-     } else {
-       warning = `${errors['cant-find-sourcemap']} ${possibleSrcPath}`;
-     }

.yarnrc.yml

@@ -6,4 +6,4 @@ enableGlobalCache: false
 
 nodeLinker: node-modules
 
-yarnPath: .yarn/releases/yarn-4.5.1.cjs
+yarnPath: .yarn/releases/yarn-4.1.1.cjs

README.md

@@ -27,5 +27,3 @@ A complete guide can be found at the following [link](https://www.home-assistant
 Home Assistant is open-source and Apache 2 licensed. Feel free to browse the repository, learn and reuse parts in your own projects.
 
 We use [BrowserStack](https://www.browserstack.com) to test Home Assistant on a large variety of devices.
-
-[![Home Assistant - A project from the Open Home Foundation](https://www.openhomefoundation.org/badges/home-assistant.png)](https://www.openhomefoundation.org/)

build-scripts/.eslintrc.json

@@ -0,0 +1,12 @@
+{
+  "extends": "../.eslintrc.json",
+  "rules": {
+    "no-console": "off",
+    "import/no-extraneous-dependencies": "off",
+    "import/extensions": "off",
+    "import/no-dynamic-require": "off",
+    "global-require": "off",
+    "@typescript-eslint/no-var-requires": "off",
+    "prefer-arrow-callback": "off"
+  }
+}

build-scripts/README.md

@@ -15,7 +15,7 @@ The Home Assistant build pipeline contains various steps to prepare a build.
 
 Currently in Home Assistant we use a bundler to convert TypeScript, CSS and JSON files to JavaScript files that the browser understands.
 
-We currently rely on Webpack. Both of these programs bundle the converted files in both production and development.
+We currently rely on Webpack but also have experimental Rollup support. Both of these programs bundle the converted files in both production and development.
 
 For development, bundling is optional. We just want to get the right files in the browser.
 

build-scripts/babel-plugins/custom-polyfill-plugin.js

@@ -1,56 +1,7 @@
 import defineProvider from "@babel/helper-define-polyfill-provider";
-import { join } from "node:path";
-import paths from "../paths.cjs";
-
-const POLYFILL_DIR = join(paths.polymer_dir, "src/resources/polyfills");
 
 // List of polyfill keys with supported browser targets for the functionality
 const PolyfillSupport = {
-  // Note states and shadowRoot properties should be supported.
-  "element-internals": {
-    android: 90,
-    chrome: 90,
-    edge: 90,
-    firefox: 126,
-    ios: 17.4,
-    opera: 76,
-    opera_mobile: 64,
-    safari: 17.4,
-    samsung: 15.0,
-  },
-  "element-append": {
-    android: 54,
-    chrome: 54,
-    edge: 17,
-    firefox: 49,
-    ios: 10.0,
-    opera: 41,
-    opera_mobile: 41,
-    safari: 10.0,
-    samsung: 6.0,
-  },
-  "element-getattributenames": {
-    android: 61,
-    chrome: 61,
-    edge: 18,
-    firefox: 45,
-    ios: 10.3,
-    opera: 48,
-    opera_mobile: 45,
-    safari: 10.1,
-    samsung: 8.0,
-  },
-  "element-toggleattribute": {
-    android: 69,
-    chrome: 69,
-    edge: 18,
-    firefox: 63,
-    ios: 12.0,
-    opera: 56,
-    opera_mobile: 48,
-    safari: 12.0,
-    samsung: 10.0,
-  },
   fetch: {
     android: 42,
     chrome: 42,
@@ -62,31 +13,6 @@ const PolyfillSupport = {
     safari: 10.1,
     samsung: 4.0,
   },
-  "intl-getcanonicallocales": {
-    android: 54,
-    chrome: 54,
-    edge: 16,
-    firefox: 48,
-    ios: 10.3,
-    opera: 41,
-    opera_mobile: 41,
-    safari: 10.1,
-    samsung: 6.0,
-  },
-  "intl-locale": {
-    android: 74,
-    chrome: 74,
-    edge: 79,
-    firefox: 75,
-    ios: 14.0,
-    opera: 62,
-    opera_mobile: 53,
-    safari: 14.0,
-    samsung: 11.0,
-  },
-  "intl-other": {
-    // Not specified (i.e. always try polyfill) since compatibility depends on supported locales
-  },
   proxy: {
     android: 49,
     chrome: 49,
@@ -98,67 +24,17 @@ const PolyfillSupport = {
     safari: 10.0,
     samsung: 5.0,
   },
-  "resize-observer": {
-    android: 64,
-    chrome: 64,
-    edge: 79,
-    firefox: 69,
-    ios: 13.4,
-    opera: 51,
-    opera_mobile: 47,
-    safari: 13.1,
-    samsung: 9.0,
-  },
 };
 
 // Map of global variables and/or instance and static properties to the
 // corresponding polyfill key and actual module to import
 const polyfillMap = {
   global: {
-    fetch: { key: "fetch", module: "unfetch/polyfill" },
     Proxy: { key: "proxy", module: "proxy-polyfill" },
-    ResizeObserver: {
+    fetch: { key: "fetch", module: "unfetch/polyfill" },
-      key: "resize-observer",
-      module: join(POLYFILL_DIR, "resize-observer.ts"),
-    },
-  },
-  instance: {
-    attachInternals: {
-      key: "element-internals",
-      module: "element-internals-polyfill",
-    },
-    ...Object.fromEntries(
-      ["append", "getAttributeNames", "toggleAttribute"].map((prop) => {
-        const key = `element-${prop.toLowerCase()}`;
-        return [prop, { key, module: join(POLYFILL_DIR, `${key}.ts`) }];
-      })
-    ),
-  },
-  static: {
-    Intl: {
-      getCanonicalLocales: {
-        key: "intl-getcanonicallocales",
-        module: join(POLYFILL_DIR, "intl-polyfill.ts"),
-      },
-      Locale: {
-        key: "intl-locale",
-        module: join(POLYFILL_DIR, "intl-polyfill.ts"),
-      },
-      ...Object.fromEntries(
-        [
-          "DateTimeFormat",
-          "DisplayNames",
-          "ListFormat",
-          "NumberFormat",
-          "PluralRules",
-          "RelativeTimeFormat",
-        ].map((obj) => [
-          obj,
-          { key: "intl-other", module: join(POLYFILL_DIR, "intl-polyfill.ts") },
-        ])
-      ),
-    },
   },
+  instance: {},
+  static: {},
 };
 
 // Create plugin using the same factory as for CoreJS
@@ -166,16 +42,14 @@ export default defineProvider(
   ({ createMetaResolver, debug, shouldInjectPolyfill }) => {
     const resolvePolyfill = createMetaResolver(polyfillMap);
     return {
-      name: "custom-polyfill",
+      name: "HA Custom",
       polyfills: PolyfillSupport,
       usageGlobal(meta, utils) {
         const polyfill = resolvePolyfill(meta);
         if (polyfill && shouldInjectPolyfill(polyfill.desc.key)) {
           debug(polyfill.desc.key);
           utils.injectGlobalImport(polyfill.desc.module);
-          return true;
         }
-        return false;
       },
     };
   }

build-scripts/bundle.cjs

@@ -3,8 +3,6 @@ const env = require("./env.cjs");
 const paths = require("./paths.cjs");
 const { dependencies } = require("../package.json");
 
-const BABEL_PLUGINS = path.join(__dirname, "babel-plugins");
-
 // GitHub base URL to use for production source maps
 // Nightly builds use the commit SHA, otherwise assumes there is a tag that matches the version
 module.exports.sourceMapURL = () => {
@@ -47,7 +45,7 @@ module.exports.emptyPackages = ({ latestBuild, isHassioBuild }) =>
 
 module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
   __DEV__: !isProdBuild,
-  __BUILD__: JSON.stringify(latestBuild ? "modern" : "legacy"),
+  __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
   __VERSION__: JSON.stringify(env.version()),
   __DEMO__: false,
   __SUPERVISOR__: false,
@@ -79,12 +77,7 @@ module.exports.terserOptions = ({ latestBuild, isTestBuild }) => ({
   sourceMap: !isTestBuild,
 });
 
-module.exports.babelOptions = ({
+module.exports.babelOptions = ({ latestBuild, isProdBuild, isTestBuild }) => ({
-  latestBuild,
-  isProdBuild,
-  isTestBuild,
-  sw,
-}) => ({
   babelrc: false,
   compact: false,
   assumptions: {
@@ -92,13 +85,13 @@ module.exports.babelOptions = ({
     setPublicClassFields: true,
     setSpreadProperties: true,
   },
-  browserslistEnv: latestBuild ? "modern" : `legacy${sw ? "-sw" : ""}`,
+  browserslistEnv: latestBuild ? "modern" : "legacy",
   presets: [
     [
       "@babel/preset-env",
       {
-        useBuiltIns: "usage",
+        useBuiltIns: latestBuild ? false : "usage",
-        corejs: dependencies["core-js"],
+        corejs: latestBuild ? false : dependencies["core-js"],
         bugfixes: true,
         shippedProposals: true,
       },
@@ -107,12 +100,22 @@ module.exports.babelOptions = ({
   ],
   plugins: [
     [
-      path.join(BABEL_PLUGINS, "inline-constants-plugin.cjs"),
+      path.resolve(
+        paths.polymer_dir,
+        "build-scripts/babel-plugins/inline-constants-plugin.cjs"
+      ),
       {
         modules: ["@mdi/js"],
         ignoreModuleNotFound: true,
       },
     ],
+    [
+      path.resolve(
+        paths.polymer_dir,
+        "build-scripts/babel-plugins/custom-polyfill-plugin.js"
+      ),
+      { method: "usage-global" },
+    ],
     // Minify template literals for production
     isProdBuild && [
       "template-html-minifier",
@@ -140,14 +143,8 @@ module.exports.babelOptions = ({
       "@babel/plugin-transform-runtime",
       { version: dependencies["@babel/runtime"] },
     ],
-    // Transpile decorators (still in TC39 process)
+    // Support  some proposals still in TC39 process
-    // Modern browsers support class fields and private methods, but transform is required with the older decorator version dictated by Lit
+    ["@babel/plugin-proposal-decorators", { decoratorsBeforeExport: true }],
-    [
-      "@babel/plugin-proposal-decorators",
-      { version: "2018-09", decoratorsBeforeExport: true },
-    ],
-    "@babel/plugin-transform-class-properties",
-    "@babel/plugin-transform-private-methods",
   ].filter(Boolean),
   exclude: [
     // \\ for Windows, / for Mac OS and Linux
@@ -156,27 +153,6 @@ module.exports.babelOptions = ({
   ],
   sourceMaps: !isTestBuild,
   overrides: [
-    {
-      // Add plugin to inject various polyfills, excluding the polyfills
-      // themselves to prevent self-injection.
-      plugins: [
-        [
-          path.join(BABEL_PLUGINS, "custom-polyfill-plugin.js"),
-          { method: "usage-global" },
-        ],
-      ],
-      exclude: [
-        path.join(paths.polymer_dir, "src/resources/polyfills"),
-        ...[
-          "@formatjs/(?:ecma402-abstract|intl-\\w+)",
-          "@lit-labs/virtualizer/polyfills",
-          "@webcomponents/scoped-custom-element-registry",
-          "element-internals-polyfill",
-          "proxy-polyfill",
-          "unfetch",
-        ].map((p) => new RegExp(`/node_modules/${p}/`)),
-      ],
-    },
     {
       // Use unambiguous for dependencies so that require() is correctly injected into CommonJS files
       // Exclusions are needed in some cases where ES modules have no static imports or exports, such as polyfills
@@ -226,12 +202,7 @@ module.exports.config = {
     return {
       name: "frontend" + nameSuffix(latestBuild),
       entry: {
-        "service-worker": !latestBuild
+        service_worker: "./src/entrypoints/service_worker.ts",
-          ? {
-              import: "./src/entrypoints/service-worker.ts",
-              layer: "sw",
-            }
-          : "./src/entrypoints/service-worker.ts",
         app: "./src/entrypoints/app.ts",
         authorize: "./src/entrypoints/authorize.ts",
         onboarding: "./src/entrypoints/onboarding.ts",

build-scripts/env.cjs

@@ -3,6 +3,9 @@ const path = require("path");
 const paths = require("./paths.cjs");
 
 module.exports = {
+  useRollup() {
+    return process.env.ROLLUP === "1";
+  },
   useWDS() {
     return process.env.WDS === "1";
   },
@@ -29,7 +32,4 @@ module.exports = {
     }
     return version[1];
   },
-  isDevContainer() {
-    return process.env.DEV_CONTAINER === "1";
-  },
 };

build-scripts/eslint.config.mjs

@@ -1,16 +0,0 @@
-import rootConfig from "../eslint.config.mjs";
-
-export default [
-  ...rootConfig,
-  {
-    rules: {
-      "no-console": "off",
-      "import/no-extraneous-dependencies": "off",
-      "import/extensions": "off",
-      "import/no-dynamic-require": "off",
-      "global-require": "off",
-      "@typescript-eslint/no-var-requires": "off",
-      "prefer-arrow-callback": "off",
-    },
-  },
-];

build-scripts/gulp/app.js

@@ -6,6 +6,7 @@ import "./entry-html.js";
 import "./gather-static.js";
 import "./gen-icons-json.js";
 import "./locale-data.js";
+import "./rollup.js";
 import "./service-worker.js";
 import "./translations.js";
 import "./wds.js";
@@ -26,7 +27,11 @@ gulp.task(
       "build-locale-data"
     ),
     "copy-static-app",
-    env.useWDS() ? "wds-watch-app" : "webpack-watch-app"
+    env.useWDS()
+      ? "wds-watch-app"
+      : env.useRollup()
+        ? "rollup-watch-app"
+        : "webpack-watch-app"
   )
 );
 
@@ -39,7 +44,7 @@ gulp.task(
     "clean",
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-app",
-    "webpack-prod-app",
+    env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
     gulp.parallel("gen-pages-app-prod", "gen-service-worker-app-prod"),
     // Don't compress running tests
     ...(env.isTestBuild() ? [] : ["compress-app"])

build-scripts/gulp/cast.js

@@ -1,7 +1,9 @@
 import gulp from "gulp";
+import env from "../env.cjs";
 import "./clean.js";
 import "./entry-html.js";
 import "./gather-static.js";
+import "./rollup.js";
 import "./service-worker.js";
 import "./translations.js";
 import "./webpack.js";
@@ -17,7 +19,7 @@ gulp.task(
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
     "gen-pages-cast-dev",
-    "webpack-dev-server-cast"
+    env.useRollup() ? "rollup-dev-server-cast" : "webpack-dev-server-cast"
   )
 );
 
@@ -31,7 +33,7 @@ gulp.task(
     "translations-enable-merge-backend",
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
-    "webpack-prod-cast",
+    env.useRollup() ? "rollup-prod-cast" : "webpack-prod-cast",
     "gen-pages-cast-prod"
   )
 );

build-scripts/gulp/compress.js

@@ -1,68 +1,19 @@
 // Tasks to compress
 
-import { constants } from "node:zlib";
 import gulp from "gulp";
-import brotli from "gulp-brotli";
 import zopfli from "gulp-zopfli-green";
 import paths from "../paths.cjs";
 
-const filesGlob = "*.{js,json,css,svg,xml}";
-const brotliOptions = {
-  skipLarger: true,
-  params: {
-    [constants.BROTLI_PARAM_QUALITY]: constants.BROTLI_MAX_QUALITY,
-  },
-};
 const zopfliOptions = { threshold: 150 };
 
-const compressDistBrotli = (rootDir, modernDir, compressServiceWorker = true) =>
+const compressDist = (rootDir) =>
   gulp
-    .src(
+    .src([
-      [
+      `${rootDir}/**/*.{js,json,css,svg,xml}`,
-        `${modernDir}/**/${filesGlob}`,
-        compressServiceWorker ? `${rootDir}/sw-modern.js` : undefined,
-      ].filter(Boolean),
-      {
-        base: rootDir,
-      }
-    )
-    .pipe(brotli(brotliOptions))
-    .pipe(gulp.dest(rootDir));
-
-const compressDistZopfli = (rootDir, modernDir, compressModern = false) =>
-  gulp
-    .src(
-      [
-        `${rootDir}/**/${filesGlob}`,
-        compressModern ? undefined : `!${modernDir}/**/${filesGlob}`,
-        `!${rootDir}/{sw-modern,service_worker}.js`,
       `${rootDir}/{authorize,onboarding}.html`,
-      ].filter(Boolean),
+    ])
-      { base: rootDir }
-    )
     .pipe(zopfli(zopfliOptions))
     .pipe(gulp.dest(rootDir));
 
-const compressAppBrotli = () =>
+gulp.task("compress-app", () => compressDist(paths.app_output_root));
-  compressDistBrotli(paths.app_output_root, paths.app_output_latest);
+gulp.task("compress-hassio", () => compressDist(paths.hassio_output_root));
-const compressHassioBrotli = () =>
-  compressDistBrotli(
-    paths.hassio_output_root,
-    paths.hassio_output_latest,
-    false
-  );
-
-const compressAppZopfli = () =>
-  compressDistZopfli(paths.app_output_root, paths.app_output_latest);
-const compressHassioZopfli = () =>
-  compressDistZopfli(
-    paths.hassio_output_root,
-    paths.hassio_output_latest,
-    true
-  );
-
-gulp.task("compress-app", gulp.parallel(compressAppBrotli, compressAppZopfli));
-gulp.task(
-  "compress-hassio",
-  gulp.parallel(compressHassioBrotli, compressHassioZopfli)
-);

build-scripts/gulp/demo.js

@@ -1,8 +1,10 @@
 import gulp from "gulp";
+import env from "../env.cjs";
 import "./clean.js";
 import "./entry-html.js";
 import "./gather-static.js";
 import "./gen-icons-json.js";
+import "./rollup.js";
 import "./service-worker.js";
 import "./translations.js";
 import "./webpack.js";
@@ -22,7 +24,7 @@ gulp.task(
       "build-locale-data"
     ),
     "copy-static-demo",
-    "webpack-dev-server-demo"
+    env.useRollup() ? "rollup-dev-server-demo" : "webpack-dev-server-demo"
   )
 );
 
@@ -37,7 +39,7 @@ gulp.task(
     "translations-enable-merge-backend",
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-demo",
-    "webpack-prod-demo",
+    env.useRollup() ? "rollup-prod-demo" : "webpack-prod-demo",
     "gen-pages-demo-prod"
   )
 );

build-scripts/gulp/download-translations.js

@@ -13,7 +13,7 @@ const srcMeta = "src/translations/translationMetadata.json";
 const encoding = "utf8";
 
 function hasHtml(data) {
-  return /<\S*>/i.test(data);
+  return /<[a-z][\s\S]*>/i.test(data);
 }
 
 function recursiveCheckHasHtml(file, data, errors, recKey) {
@@ -127,7 +127,6 @@ gulp.task("fetch-lokalise", async function () {
           replace_breaks: false,
           json_unescaped_slashes: true,
           export_empty_as: "skip",
-          filter_data: ["verified"],
         })
         .then((download) => fetch(download.bundle_url))
         .then((response) => {

build-scripts/gulp/entry-html.js

@@ -1,75 +1,28 @@
 // Tasks to generate entry HTML
 
-import {
-  applyVersionsToRegexes,
-  compileRegex,
-  getPreUserAgentRegexes,
-} from "browserslist-useragent-regexp";
 import fs from "fs-extra";
 import gulp from "gulp";
 import { minify } from "html-minifier-terser";
 import template from "lodash.template";
-import { dirname, extname, resolve } from "node:path";
+import path from "path";
 import { htmlMinifierOptions, terserOptions } from "../bundle.cjs";
 import env from "../env.cjs";
 import paths from "../paths.cjs";
 
-// macOS companion app has no way to obtain the Safari version used by WKWebView,
-// and it is not in the default user agent string. So we add an additional regex
-// to serve modern based on a minimum macOS version. We take the minimum Safari
-// major version from browserslist and manually map that to a supported macOS
-// version. Note this assumes the user has kept Safari updated.
-const HA_MACOS_REGEX =
-  /Home Assistant\/[\d.]+ \(.+; macOS (\d+)\.(\d+)(?:\.(\d+))?\)/;
-const SAFARI_TO_MACOS = {
-  15: [10, 15, 0],
-  16: [11, 0, 0],
-  17: [12, 0, 0],
-  18: [13, 0, 0],
-};
-
-const getCommonTemplateVars = () => {
-  const browserRegexes = getPreUserAgentRegexes({
-    env: "modern",
-    allowHigherVersions: true,
-    mobileToDesktop: true,
-    throwOnMissing: true,
-  });
-  const minSafariVersion = browserRegexes.find(
-    (regex) => regex.family === "safari"
-  )?.matchedVersions[0][0];
-  const minMacOSVersion = SAFARI_TO_MACOS[minSafariVersion];
-  if (!minMacOSVersion) {
-    throw Error(
-      `Could not find minimum MacOS version for Safari ${minSafariVersion}.`
-    );
-  }
-  const haMacOSRegex = applyVersionsToRegexes(
-    [
-      {
-        family: "ha_macos",
-        regex: HA_MACOS_REGEX,
-        matchedVersions: [minMacOSVersion],
-        requestVersions: [minMacOSVersion],
-      },
-    ],
-    { ignorePatch: true, allowHigherVersions: true }
-  );
-  return {
-    useWDS: env.useWDS(),
-    modernRegex: compileRegex(browserRegexes.concat(haMacOSRegex)).toString(),
-  };
-};
-
 const renderTemplate = (templateFile, data = {}) => {
   const compiled = template(
     fs.readFileSync(templateFile, { encoding: "utf-8" })
   );
   return compiled({
     ...data,
+    useRollup: env.useRollup(),
+    useWDS: env.useWDS(),
     // Resolve any child/nested templates relative to the parent and pass the same data
     renderTemplate: (childTemplate) =>
-      renderTemplate(resolve(dirname(templateFile), childTemplate), data),
+      renderTemplate(
+        path.resolve(path.dirname(templateFile), childTemplate),
+        data
+      ),
   });
 };
 
@@ -103,12 +56,10 @@ const genPagesDevTask =
     publicRoot = ""
   ) =>
   async () => {
-    const commonVars = getCommonTemplateVars();
     for (const [page, entries] of Object.entries(pageEntries)) {
       const content = renderTemplate(
-        resolve(inputRoot, inputSub, `${page}.template`),
+        path.resolve(inputRoot, inputSub, `${page}.template`),
         {
-          ...commonVars,
           latestEntryJS: entries.map((entry) =>
             useWDS
               ? `http://localhost:8000/src/entrypoints/${entry}.ts`
@@ -123,7 +74,7 @@ const genPagesDevTask =
           es5CustomPanelJS: `${publicRoot}/frontend_es5/custom-panel.js`,
         }
       );
-      fs.outputFileSync(resolve(outputRoot, page), content);
+      fs.outputFileSync(path.resolve(outputRoot, page), content);
     }
   };
 
@@ -140,18 +91,16 @@ const genPagesProdTask =
   ) =>
   async () => {
     const latestManifest = fs.readJsonSync(
-      resolve(outputLatest, "manifest.json")
+      path.resolve(outputLatest, "manifest.json")
     );
     const es5Manifest = outputES5
-      ? fs.readJsonSync(resolve(outputES5, "manifest.json"))
+      ? fs.readJsonSync(path.resolve(outputES5, "manifest.json"))
       : {};
-    const commonVars = getCommonTemplateVars();
     const minifiedHTML = [];
     for (const [page, entries] of Object.entries(pageEntries)) {
       const content = renderTemplate(
-        resolve(inputRoot, inputSub, `${page}.template`),
+        path.resolve(inputRoot, inputSub, `${page}.template`),
         {
-          ...commonVars,
           latestEntryJS: entries.map((entry) => latestManifest[`${entry}.js`]),
           es5EntryJS: entries.map((entry) => es5Manifest[`${entry}.js`]),
           latestCustomPanelJS: latestManifest["custom-panel.js"],
@@ -159,8 +108,8 @@ const genPagesProdTask =
         }
       );
       minifiedHTML.push(
-        minifyHtml(content, extname(page)).then((minified) =>
+        minifyHtml(content, path.extname(page)).then((minified) =>
-          fs.outputFileSync(resolve(outputRoot, page), minified)
+          fs.outputFileSync(path.resolve(outputRoot, page), minified)
         )
       );
     }

build-scripts/gulp/fetch-nightly-translations.js

@@ -9,7 +9,7 @@ import gulp from "gulp";
 import jszip from "jszip";
 import path from "path";
 import process from "process";
-import { extract } from "tar";
+import tar from "tar";
 
 const MAX_AGE = 24; // hours
 const OWNER = "home-assistant";
@@ -156,7 +156,7 @@ gulp.task("fetch-nightly-translations", async function () {
   console.log("Unpacking downloaded translations...");
   const zip = await jszip.loadAsync(downloadResponse.data);
   await deleteCurrent;
-  const extractStream = zip.file(/.*/)[0].nodeStream().pipe(extract());
+  const extractStream = zip.file(/.*/)[0].nodeStream().pipe(tar.extract());
   await new Promise((resolve, reject) => {
     extractStream.on("close", resolve).on("error", reject);
   });

build-scripts/gulp/gallery.js

@@ -4,11 +4,13 @@ import gulp from "gulp";
 import yaml from "js-yaml";
 import { marked } from "marked";
 import path from "path";
+import env from "../env.cjs";
 import paths from "../paths.cjs";
 import "./clean.js";
 import "./entry-html.js";
 import "./gather-static.js";
 import "./gen-icons-json.js";
+import "./rollup.js";
 import "./service-worker.js";
 import "./translations.js";
 import "./webpack.js";
@@ -156,7 +158,9 @@ gulp.task(
     "copy-static-gallery",
     "gen-pages-gallery-dev",
     gulp.parallel(
-      "webpack-dev-server-gallery",
+      env.useRollup()
+        ? "rollup-dev-server-gallery"
+        : "webpack-dev-server-gallery",
       async function watchMarkdownFiles() {
         gulp.watch(
           [
@@ -185,7 +189,7 @@ gulp.task(
       "gather-gallery-pages"
     ),
     "copy-static-gallery",
-    "webpack-prod-gallery",
+    env.useRollup() ? "rollup-prod-gallery" : "webpack-prod-gallery",
     "gen-pages-gallery-prod"
   )
 );

build-scripts/gulp/gather-static.js

@@ -4,6 +4,7 @@ import fs from "fs-extra";
 import gulp from "gulp";
 import path from "path";
 import paths from "../paths.cjs";
+import env from "../env.cjs";
 
 const npmPath = (...parts) =>
   path.resolve(paths.polymer_dir, "node_modules", ...parts);
@@ -59,15 +60,12 @@ function copyPolyfills(staticDir) {
     npmPath("@webcomponents/webcomponentsjs/webcomponents-bundle.js.map"),
     staticPath("polyfills/")
   );
-
-  // dialog-polyfill css
-  copyFileDir(
-    npmPath("dialog-polyfill/dialog-polyfill.css"),
-    staticPath("polyfills/")
-  );
 }
 
 function copyLoaderJS(staticDir) {
+  if (!env.useRollup()) {
+    return;
+  }
   const staticPath = genStaticPath(staticDir);
   copyFileDir(npmPath("systemjs/dist/s.min.js"), staticPath("js"));
   copyFileDir(npmPath("systemjs/dist/s.min.js.map"), staticPath("js"));
@@ -102,14 +100,6 @@ function copyMapPanel(staticDir) {
   );
 }
 
-function copyZXingWasm(staticDir) {
-  const staticPath = genStaticPath(staticDir);
-  copyFileDir(
-    npmPath("zxing-wasm/dist/reader/zxing_reader.wasm"),
-    staticPath("js")
-  );
-}
-
 gulp.task("copy-locale-data", async () => {
   const staticDir = paths.app_output_static;
   copyLocaleData(staticDir);
@@ -147,7 +137,6 @@ gulp.task("copy-static-app", async () => {
   copyMapPanel(staticDir);
 
   // Qr Scanner assets
-  copyZXingWasm(staticDir);
   copyQrScannerWorker(staticDir);
 });
 

build-scripts/gulp/hassio.js

@@ -5,6 +5,7 @@ import "./compress.js";
 import "./entry-html.js";
 import "./gather-static.js";
 import "./gen-icons-json.js";
+import "./rollup.js";
 import "./translations.js";
 import "./webpack.js";
 
@@ -21,7 +22,7 @@ gulp.task(
     "copy-translations-supervisor",
     "build-locale-data",
     "copy-static-supervisor",
-    "webpack-watch-hassio"
+    env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
 
@@ -37,7 +38,7 @@ gulp.task(
     "copy-translations-supervisor",
     "build-locale-data",
     "copy-static-supervisor",
-    "webpack-prod-hassio",
+    env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
     "gen-pages-hassio-prod",
     ...// Don't compress running tests
     (env.isTestBuild() ? [] : ["compress-hassio"])

build-scripts/gulp/locale-data.js

@@ -24,11 +24,8 @@ const convertToJSON = async (
 ) => {
   let localeData;
   try {
-    // use "pt" for "pt-BR", because "pt-BR" is unsupported by @formatjs
-    const language = lang === "pt-BR" ? "pt" : lang;
-
     localeData = await readFile(
-      join(formatjsDir, pkg, subDir, `${language}.js`),
+      join(formatjsDir, pkg, subDir, `${lang}.js`),
       "utf-8"
     );
   } catch (e) {

build-scripts/gulp/rollup.js

@@ -0,0 +1,147 @@
+// Tasks to run Rollup
+
+import log from "fancy-log";
+import gulp from "gulp";
+import http from "http";
+import open from "open";
+import path from "path";
+import { rollup } from "rollup";
+import handler from "serve-handler";
+import paths from "../paths.cjs";
+import rollupConfig from "../rollup.cjs";
+
+const bothBuilds = (createConfigFunc, params) =>
+  gulp.series(
+    async function buildLatest() {
+      await buildRollup(
+        createConfigFunc({
+          ...params,
+          latestBuild: true,
+        })
+      );
+    },
+    async function buildES5() {
+      await buildRollup(
+        createConfigFunc({
+          ...params,
+          latestBuild: false,
+        })
+      );
+    }
+  );
+
+function createServer(serveOptions) {
+  const server = http.createServer((request, response) =>
+    handler(request, response, {
+      public: serveOptions.root,
+    })
+  );
+
+  server.listen(
+    serveOptions.port,
+    serveOptions.networkAccess ? "0.0.0.0" : undefined,
+    () => {
+      log.info(`Available at http://localhost:${serveOptions.port}`);
+      open(`http://localhost:${serveOptions.port}`);
+    }
+  );
+}
+
+function watchRollup(createConfig, extraWatchSrc = [], serveOptions = null) {
+  const { inputOptions, outputOptions } = createConfig({
+    isProdBuild: false,
+    latestBuild: true,
+  });
+
+  const watcher = rollup.watch({
+    ...inputOptions,
+    output: [outputOptions],
+    watch: {
+      include: ["src/**"] + extraWatchSrc,
+    },
+  });
+
+  let startedHttp = false;
+
+  watcher.on("event", (event) => {
+    if (event.code === "BUNDLE_END") {
+      log(`Build done @ ${new Date().toLocaleTimeString()}`);
+    } else if (event.code === "ERROR") {
+      log.error(event.error);
+    } else if (event.code === "END") {
+      if (startedHttp || !serveOptions) {
+        return;
+      }
+      startedHttp = true;
+      createServer(serveOptions);
+    }
+  });
+
+  gulp.watch(
+    path.join(paths.translations_src, "en.json"),
+    gulp.series("build-translations", "copy-translations-app")
+  );
+}
+
+async function buildRollup(config) {
+  const bundle = await rollup.rollup(config.inputOptions);
+  await bundle.write(config.outputOptions);
+}
+
+gulp.task("rollup-watch-app", () => {
+  watchRollup(rollupConfig.createAppConfig);
+});
+
+gulp.task("rollup-watch-hassio", () => {
+  watchRollup(rollupConfig.createHassioConfig, ["hassio/src/**"]);
+});
+
+gulp.task("rollup-dev-server-demo", () => {
+  watchRollup(rollupConfig.createDemoConfig, ["demo/src/**"], {
+    root: paths.demo_output_root,
+    port: 8090,
+  });
+});
+
+gulp.task("rollup-dev-server-cast", () => {
+  watchRollup(rollupConfig.createCastConfig, ["cast/src/**"], {
+    root: paths.cast_output_root,
+    port: 8080,
+    networkAccess: true,
+  });
+});
+
+gulp.task("rollup-dev-server-gallery", () => {
+  watchRollup(rollupConfig.createGalleryConfig, ["gallery/src/**"], {
+    root: paths.gallery_output_root,
+    port: 8100,
+  });
+});
+
+gulp.task(
+  "rollup-prod-app",
+  bothBuilds(rollupConfig.createAppConfig, { isProdBuild: true })
+);
+
+gulp.task(
+  "rollup-prod-demo",
+  bothBuilds(rollupConfig.createDemoConfig, { isProdBuild: true })
+);
+
+gulp.task(
+  "rollup-prod-cast",
+  bothBuilds(rollupConfig.createCastConfig, { isProdBuild: true })
+);
+
+gulp.task("rollup-prod-hassio", () =>
+  bothBuilds(rollupConfig.createHassioConfig, { isProdBuild: true })
+);
+
+gulp.task("rollup-prod-gallery", () =>
+  buildRollup(
+    rollupConfig.createGalleryConfig({
+      isProdBuild: true,
+      latestBuild: true,
+    })
+  )
+);

build-scripts/gulp/service-worker.js

@@ -1,18 +1,19 @@
-// Generate service workers
+// Generate service worker.
+// Based on manifest, create a file with the content as service_worker.js
 
-import { deleteAsync } from "del";
+import fs from "fs-extra";
 import gulp from "gulp";
-import { mkdir, readFile, symlink, writeFile } from "node:fs/promises";
+import path from "path";
-import { basename, join, relative } from "node:path";
+import sourceMapUrl from "source-map-url";
-import { injectManifest } from "workbox-build";
+import workboxBuild from "workbox-build";
 import paths from "../paths.cjs";
 
-const SW_MAP = {
+const swDest = path.resolve(paths.app_output_root, "service_worker.js");
-  [paths.app_output_latest]: "modern",
-  [paths.app_output_es5]: "legacy",
-};
 
-const SW_DEV =
+const writeSW = (content) => fs.outputFileSync(swDest, content.trim() + "\n");
+
+gulp.task("gen-service-worker-app-dev", (done) => {
+  writeSW(
     `
 console.debug('Service worker disabled in development');
 
@@ -21,40 +22,46 @@ self.addEventListener('install', (event) => {
   // removing any prod service worker the dev might have running
   self.skipWaiting();
 });
-  `.trim() + "\n";
+  `
-
-gulp.task("gen-service-worker-app-dev", async () => {
-  await mkdir(paths.app_output_root, { recursive: true });
-  await Promise.all(
-    Object.values(SW_MAP).map((build) =>
-      writeFile(join(paths.app_output_root, `sw-${build}.js`), SW_DEV, {
-        encoding: "utf-8",
-      })
-    )
   );
+  done();
 });
 
-gulp.task("gen-service-worker-app-prod", () =>
+gulp.task("gen-service-worker-app-prod", async () => {
-  Promise.all(
+  // Read bundled source file
-    Object.entries(SW_MAP).map(async ([outPath, build]) => {
+  const bundleManifestLatest = fs.readJsonSync(
-      const manifest = JSON.parse(
+    path.resolve(paths.app_output_latest, "manifest.json")
-        await readFile(join(outPath, "manifest.json"), "utf-8")
   );
-      const swSrc = join(paths.app_output_root, manifest["service-worker.js"]);
+  let serviceWorkerContent = fs.readFileSync(
-      const swDest = join(paths.app_output_root, `sw-${build}.js`);
+    paths.app_output_root + bundleManifestLatest["service_worker.js"],
-      const buildDir = relative(paths.app_output_root, outPath);
+    "utf-8"
-      const { warnings } = await injectManifest({
+  );
-        swSrc,
+
-        swDest,
+  // Delete old file from frontend_latest so manifest won't pick it up
-        injectionPoint: "__WB_MANIFEST__",
+  fs.removeSync(
+    paths.app_output_root + bundleManifestLatest["service_worker.js"]
+  );
+  fs.removeSync(
+    paths.app_output_root + bundleManifestLatest["service_worker.js.map"]
+  );
+
+  // Remove ES5
+  const bundleManifestES5 = fs.readJsonSync(
+    path.resolve(paths.app_output_es5, "manifest.json")
+  );
+  fs.removeSync(paths.app_output_root + bundleManifestES5["service_worker.js"]);
+  fs.removeSync(
+    paths.app_output_root + bundleManifestES5["service_worker.js.map"]
+  );
+
+  const workboxManifest = await workboxBuild.getManifest({
     // Files that mach this pattern will be considered unique and skip revision check
     // ignore JS files + translation files
-        dontCacheBustURLsMatching: new RegExp(
+    dontCacheBustURLsMatching: /(frontend_latest\/.+|static\/translations\/.+)/,
-          `(?:${buildDir}/.+|static/translations/.+)`
+
-        ),
     globDirectory: paths.app_output_root,
     globPatterns: [
-          `${buildDir}/*.js`,
+      "frontend_latest/*.js",
       // Cache all English translations because we catch them as fallback
       // Using pattern to match hash instead of * to avoid caching en-GB
       // 'v' added as valid hash letter because in dev we hash with 'dev'
@@ -68,20 +75,19 @@ gulp.task("gen-service-worker-app-prod", () =>
       "static/fonts/roboto/Roboto-Regular.woff2",
       "static/fonts/roboto/Roboto-Bold.woff2",
     ],
-        globIgnores: [`${buildDir}/service-worker*`],
   });
-      if (warnings.length > 0) {
+
-        console.warn(
+  for (const warning of workboxManifest.warnings) {
-          `Problems while injecting ${build} service worker:\n`,
+    console.warn(warning);
-          warnings.join("\n")
+  }
+
+  // remove source map and add WB manifest
+  serviceWorkerContent = sourceMapUrl.removeFrom(serviceWorkerContent);
+  serviceWorkerContent = serviceWorkerContent.replace(
+    "WB_MANIFEST",
+    JSON.stringify(workboxManifest.manifestEntries)
   );
-      }
+
-      await deleteAsync(`${swSrc}?(.map)`);
+  // Write new file to root
-      // Needed to install new SW from a cached HTML
+  fs.writeFileSync(swDest, serviceWorkerContent);
-      if (build === "modern") {
+});
-        const swOld = join(paths.app_output_root, "service_worker.js");
-        await symlink(basename(swDest), swOld);
-      }
-    })
-  )
-);

build-scripts/gulp/translations.js

@@ -1,112 +1,92 @@
-/* eslint-disable max-classes-per-file */
+import { createHash } from "crypto";
-
+import { deleteSync } from "del";
-import { deleteAsync } from "del";
+import { mkdirSync, readdirSync, readFileSync, renameSync } from "fs";
-import { glob } from "glob";
+import { writeFile } from "node:fs/promises";
 import gulp from "gulp";
+import flatmap from "gulp-flatmap";
+import transform from "gulp-json-transform";
+import merge from "gulp-merge-json";
 import rename from "gulp-rename";
-import merge from "lodash.merge";
+import path from "path";
-import { createHash } from "node:crypto";
+import vinylBuffer from "vinyl-buffer";
-import { mkdir, readFile } from "node:fs/promises";
+import source from "vinyl-source-stream";
-import { basename, join } from "node:path";
-import { PassThrough, Transform } from "node:stream";
-import { finished } from "node:stream/promises";
 import env from "../env.cjs";
 import paths from "../paths.cjs";
+import { mapFiles } from "../util.cjs";
 import "./fetch-nightly-translations.js";
 
 const inFrontendDir = "translations/frontend";
 const inBackendDir = "translations/backend";
 const workDir = "build/translations";
-const outDir = join(workDir, "output");
+const fullDir = workDir + "/full";
-const EN_SRC = join(paths.translations_src, "en.json");
+const coreDir = workDir + "/core";
-const TEST_LOCALE = "en-x-test";
+const outDir = workDir + "/output";
-
 let mergeBackend = false;
 
 gulp.task(
   "translations-enable-merge-backend",
-  gulp.parallel(async () => {
+  gulp.parallel((done) => {
     mergeBackend = true;
+    done();
   }, "allow-setup-fetch-nightly-translations")
 );
 
-// Transform stream to apply a function on Vinyl JSON files (buffer mode only).
+// Panel translations which should be split from the core translations.
-// The provided function can either return a new object, or an array of
+const TRANSLATION_FRAGMENTS = Object.keys(
-// [object, subdirectory] pairs for fragmentizing the JSON.
+  JSON.parse(
-class CustomJSON extends Transform {
+    readFileSync(
-  constructor(func, reviver = null) {
+      path.resolve(paths.polymer_dir, "src/translations/en.json"),
-    super({ objectMode: true });
+      "utf-8"
-    this._func = func;
+    )
-    this._reviver = reviver;
+  ).ui.panel
-  }
+);
 
-  async _transform(file, _, callback) {
+function recursiveFlatten(prefix, data) {
-    try {
+  let output = {};
-      let obj = JSON.parse(file.contents.toString(), this._reviver);
+  Object.keys(data).forEach((key) => {
-      if (this._func) obj = this._func(obj, file.path);
+    if (typeof data[key] === "object") {
-      for (const [outObj, dir] of Array.isArray(obj) ? obj : [[obj, ""]]) {
+      output = {
-        const outFile = file.clone({ contents: false });
+        ...output,
-        outFile.contents = Buffer.from(JSON.stringify(outObj));
+        ...recursiveFlatten(prefix + key + ".", data[key]),
-        outFile.dirname += `/${dir}`;
+      };
-        this.push(outFile);
-      }
-      callback(null);
-    } catch (err) {
-      callback(err);
-    }
-  }
-}
-
-// Transform stream to merge Vinyl JSON files (buffer mode only).
-class MergeJSON extends Transform {
-  _objects = [];
-
-  constructor(stem, startObj = {}, reviver = null) {
-    super({ objectMode: true, allowHalfOpen: false });
-    this._stem = stem;
-    this._startObj = structuredClone(startObj);
-    this._reviver = reviver;
-  }
-
-  async _transform(file, _, callback) {
-    try {
-      this._objects.push(JSON.parse(file.contents.toString(), this._reviver));
-      if (!this._outFile) this._outFile = file.clone({ contents: false });
-      callback(null);
-    } catch (err) {
-      callback(err);
-    }
-  }
-
-  async _flush(callback) {
-    try {
-      const mergedObj = merge(this._startObj, ...this._objects);
-      this._outFile.contents = Buffer.from(JSON.stringify(mergedObj));
-      this._outFile.stem = this._stem;
-      callback(null, this._outFile);
-    } catch (err) {
-      callback(err);
-    }
-  }
-}
-
-// Utility to flatten object keys to single level using separator
-const flatten = (data, prefix = "", sep = ".") => {
-  const output = {};
-  for (const [key, value] of Object.entries(data)) {
-    if (typeof value === "object") {
-      Object.assign(output, flatten(value, prefix + key + sep, sep));
     } else {
-      output[prefix + key] = value;
+      output[prefix + key] = data[key];
-    }
     }
+  });
   return output;
-};
+}
 
-// Filter functions that can be passed directly to JSON.parse()
+function flatten(data) {
-const emptyReviver = (_key, value) => value || undefined;
+  return recursiveFlatten("", data);
-const testReviver = (_key, value) =>
+}
-  value && typeof value === "string" ? "TRANSLATED" : value;
+
+function emptyFilter(data) {
+  const newData = {};
+  Object.keys(data).forEach((key) => {
+    if (data[key]) {
+      if (typeof data[key] === "object") {
+        newData[key] = emptyFilter(data[key]);
+      } else {
+        newData[key] = data[key];
+      }
+    }
+  });
+  return newData;
+}
+
+function recursiveEmpty(data) {
+  const newData = {};
+  Object.keys(data).forEach((key) => {
+    if (data[key]) {
+      if (typeof data[key] === "object") {
+        newData[key] = recursiveEmpty(data[key]);
+      } else {
+        newData[key] = "TRANSLATED";
+      }
+    }
+  });
+  return newData;
+}
 
 /**
  * Replace Lokalise key placeholders with their actual values.
@@ -115,44 +95,60 @@ const testReviver = (_key, value) =>
  * be included in src/translations/en.json, but still be usable while
  * developing locally.
  *
- * @link https://docs.lokalise.com/en/articles/1400528-key-referencing
+ * @link https://docs.lokalise.co/article/KO5SZWLLsy-key-referencing
  */
-const KEY_REFERENCE = /\[%key:([^%]+)%\]/;
+const re_key_reference = /\[%key:([^%]+)%\]/;
-const lokaliseTransform = (data, path, original = data) => {
+function lokaliseTransform(data, original, file) {
   const output = {};
-  for (const [key, value] of Object.entries(data)) {
+  Object.entries(data).forEach(([key, value]) => {
-    if (typeof value === "object") {
+    if (value instanceof Object) {
-      output[key] = lokaliseTransform(value, path, original);
+      output[key] = lokaliseTransform(value, original, file);
     } else {
-      output[key] = value.replace(KEY_REFERENCE, (_match, lokalise_key) => {
+      output[key] = value.replace(re_key_reference, (_match, lokalise_key) => {
         const replace = lokalise_key.split("::").reduce((tr, k) => {
           if (!tr) {
-            throw Error(`Invalid key placeholder ${lokalise_key} in ${path}`);
+            throw Error(
+              `Invalid key placeholder ${lokalise_key} in ${file.path}`
+            );
           }
           return tr[k];
         }, original);
         if (typeof replace !== "string") {
-          throw Error(`Invalid key placeholder ${lokalise_key} in ${path}`);
+          throw Error(
+            `Invalid key placeholder ${lokalise_key} in ${file.path}`
+          );
         }
         return replace;
       });
     }
-  }
+  });
   return output;
-};
+}
 
-gulp.task("clean-translations", () => deleteAsync([workDir]));
+gulp.task("clean-translations", async () => deleteSync([workDir]));
 
-const makeWorkDir = () => mkdir(workDir, { recursive: true });
+gulp.task("ensure-translations-build-dir", async () => {
+  mkdirSync(workDir, { recursive: true });
+});
 
-const createTestTranslation = () =>
+gulp.task("create-test-metadata", () =>
+  env.isProdBuild()
+    ? Promise.resolve()
+    : writeFile(
+        workDir + "/testMetadata.json",
+        JSON.stringify({ test: { nativeName: "Test" } })
+      )
+);
+
+gulp.task("create-test-translation", () =>
   env.isProdBuild()
     ? Promise.resolve()
     : gulp
-        .src(EN_SRC)
+        .src(path.join(paths.translations_src, "en.json"))
-        .pipe(new CustomJSON(null, testReviver))
+        .pipe(transform((data, _file) => recursiveEmpty(data)))
-        .pipe(rename(`${TEST_LOCALE}.json`))
+        .pipe(rename("test.json"))
-        .pipe(gulp.dest(workDir));
+        .pipe(gulp.dest(workDir))
+);
 
 /**
  * This task will build a master translation file, to be used as the base for
@@ -163,164 +159,279 @@ const createTestTranslation = () =>
  * project is buildable immediately after merging new translation keys, since
  * the Lokalise update to translations/en.json will not happen immediately.
  */
-const createMasterTranslation = () =>
+gulp.task("build-master-translation", () => {
-  gulp
+  const src = [path.join(paths.translations_src, "en.json")];
-    .src([EN_SRC, ...(mergeBackend ? [`${inBackendDir}/en.json`] : [])])
-    .pipe(new CustomJSON(lokaliseTransform))
-    .pipe(new MergeJSON("en"))
-    .pipe(gulp.dest(workDir));
 
-const FRAGMENTS = ["base"];
+  if (mergeBackend) {
-
+    src.push(path.join(inBackendDir, "en.json"));
-const toggleSupervisorFragment = async () => {
-  FRAGMENTS[0] = "supervisor";
-};
-
-const panelFragment = (fragment) =>
-  fragment !== "base" && fragment !== "supervisor";
-
-const HASHES = new Map();
-
-const createTranslations = async () => {
-  // Parse and store the master to avoid repeating this for each locale, then
-  // add the panel fragments when processing the app.
-  const enMaster = JSON.parse(await readFile(`${workDir}/en.json`, "utf-8"));
-  if (FRAGMENTS[0] === "base") {
-    FRAGMENTS.push(...Object.keys(enMaster.ui.panel));
   }
 
-  // The downstream pipeline is setup first.  It hashes the merged data for
+  return gulp
-  // each locale, then fragmentizes and flattens the data for final output.
+    .src(src)
-  const translationFiles = await glob([
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
-    `${inFrontendDir}/!(en).json`,
-    ...(env.isProdBuild() ? [] : [`${workDir}/${TEST_LOCALE}.json`]),
-  ]);
-  const hashStream = new Transform({
-    objectMode: true,
-    transform: async (file, _, callback) => {
-      const hash = env.isProdBuild()
-        ? createHash("md5").update(file.contents).digest("hex")
-        : "dev";
-      HASHES.set(file.stem, hash);
-      file.stem += `-${hash}`;
-      callback(null, file);
-    },
-  }).setMaxListeners(translationFiles.length + 1);
-  const fragmentsStream = hashStream
     .pipe(
-      new CustomJSON((data) =>
+      merge({
-        FRAGMENTS.map((fragment) => {
+        fileName: "en.json",
-          switch (fragment) {
-            case "base":
-              // Remove the panels and supervisor to create the base translations
-              return [
-                flatten({
-                  ...data,
-                  ui: { ...data.ui, panel: undefined },
-                  supervisor: undefined,
-                }),
-                "",
-              ];
-            case "supervisor":
-              // Supervisor key is at the top level
-              return [flatten(data.supervisor), ""];
-            default:
-              // Create a fragment with only the given panel
-              return [
-                flatten(data.ui.panel[fragment], `ui.panel.${fragment}.`),
-                fragment,
-              ];
-          }
       })
     )
-    )
+    .pipe(gulp.dest(fullDir));
-    .pipe(gulp.dest(outDir));
+});
 
-  // Send the English master downstream first, then for each other locale
+gulp.task("build-merged-translations", () =>
-  // generate merged JSON data to continue piping. It begins with the master
+  gulp
+    .src([
+      inFrontendDir + "/*.json",
+      "!" + inFrontendDir + "/en.json",
+      ...(env.isProdBuild() ? [] : [workDir + "/test.json"]),
+    ])
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
+    .pipe(
+      flatmap((stream, file) => {
+        // For each language generate a merged json file. It begins with the master
         // translation as a failsafe for untranslated strings, and merges all parent
         // tags into one file for each specific subtag
         //
         // TODO: This is a naive interpretation of BCP47 that should be improved.
         //       Will be OK for now as long as we don't have anything more complicated
         //       than a base translation + region.
-  const masterStream = gulp
+        const tr = path.basename(file.history[0], ".json");
-    .src(`${workDir}/en.json`)
+        const subtags = tr.split("-");
-    .pipe(new PassThrough({ objectMode: true }));
+        const src = [fullDir + "/en.json"];
-  masterStream.pipe(hashStream, { end: false });
-  const mergesFinished = [finished(masterStream)];
-  for (const translationFile of translationFiles) {
-    const locale = basename(translationFile, ".json");
-    const subtags = locale.split("-");
-    const mergeFiles = [];
         for (let i = 1; i <= subtags.length; i++) {
           const lang = subtags.slice(0, i).join("-");
-      if (lang === TEST_LOCALE) {
+          if (lang === "test") {
-        mergeFiles.push(`${workDir}/${TEST_LOCALE}.json`);
+            src.push(workDir + "/test.json");
           } else if (lang !== "en") {
-        mergeFiles.push(`${inFrontendDir}/${lang}.json`);
+            src.push(inFrontendDir + "/" + lang + ".json");
             if (mergeBackend) {
-          mergeFiles.push(`${inBackendDir}/${lang}.json`);
+              src.push(inBackendDir + "/" + lang + ".json");
             }
           }
         }
-    const mergeStream = gulp
+        return gulp
-      .src(mergeFiles, { allowEmpty: true })
+          .src(src, { allowEmpty: true })
-      .pipe(new MergeJSON(locale, enMaster, emptyReviver));
+          .pipe(transform((data) => emptyFilter(data)))
-    mergesFinished.push(finished(mergeStream));
-    mergeStream.pipe(hashStream, { end: false });
-  }
-
-  // Wait for all merges to finish, then it's safe to end writing to the
-  // downstream pipeline and wait for all fragments to finish writing.
-  await Promise.all(mergesFinished);
-  hashStream.end();
-  await finished(fragmentsStream);
-};
-
-const writeTranslationMetaData = () =>
-  gulp
-    .src([`${paths.translations_src}/translationMetadata.json`])
           .pipe(
-      new CustomJSON((meta) => {
+            merge({
-        // Add the test translation in development.
+              fileName: tr + ".json",
-        if (!env.isProdBuild()) {
-          meta[TEST_LOCALE] = { nativeName: "Translation Test" };
-        }
-        // Filter out locales without a native name, and add the hashes.
-        for (const locale of Object.keys(meta)) {
-          if (!meta[locale].nativeName) {
-            meta[locale] = undefined;
-            console.warn(
-              `Skipping locale ${locale} because native name is not translated.`
-            );
-          } else {
-            meta[locale].hash = HASHES.get(locale);
-          }
-        }
-        return {
-          fragments: FRAGMENTS.filter(panelFragment),
-          translations: meta,
-        };
             })
           )
-    .pipe(gulp.dest(workDir));
+          .pipe(gulp.dest(fullDir));
+      })
+    )
+);
+
+let taskName;
+
+const splitTasks = [];
+TRANSLATION_FRAGMENTS.forEach((fragment) => {
+  taskName = "build-translation-fragment-" + fragment;
+  gulp.task(taskName, () =>
+    // Return only the translations for this fragment.
+    gulp
+      .src(fullDir + "/*.json")
+      .pipe(
+        transform((data) => ({
+          ui: {
+            panel: {
+              [fragment]: data.ui.panel[fragment],
+            },
+          },
+        }))
+      )
+      .pipe(gulp.dest(workDir + "/" + fragment))
+  );
+  splitTasks.push(taskName);
+});
+
+taskName = "build-translation-core";
+gulp.task(taskName, () =>
+  // Remove the fragment translations from the core translation.
+  gulp
+    .src(fullDir + "/*.json")
+    .pipe(
+      transform((data, _file) => {
+        TRANSLATION_FRAGMENTS.forEach((fragment) => {
+          delete data.ui.panel[fragment];
+        });
+        delete data.supervisor;
+        return data;
+      })
+    )
+    .pipe(gulp.dest(coreDir))
+);
+
+splitTasks.push(taskName);
+
+gulp.task("build-flattened-translations", () =>
+  // Flatten the split versions of our translations, and move them into outDir
+  gulp
+    .src(
+      TRANSLATION_FRAGMENTS.map(
+        (fragment) => workDir + "/" + fragment + "/*.json"
+      ).concat(coreDir + "/*.json"),
+      { base: workDir }
+    )
+    .pipe(
+      transform((data) =>
+        // Polymer.AppLocalizeBehavior requires flattened json
+        flatten(data)
+      )
+    )
+    .pipe(
+      rename((filePath) => {
+        if (filePath.dirname === "core") {
+          filePath.dirname = "";
+        }
+        // In dev we create the file with the fake hash in the filename
+        if (!env.isProdBuild()) {
+          filePath.basename += "-dev";
+        }
+      })
+    )
+    .pipe(gulp.dest(outDir))
+);
+
+const fingerprints = {};
+
+gulp.task("build-translation-fingerprints", () => {
+  // Fingerprint full file of each language
+  const files = readdirSync(fullDir);
+
+  for (let i = 0; i < files.length; i++) {
+    fingerprints[files[i].split(".")[0]] = {
+      // In dev we create fake hashes
+      hash: env.isProdBuild()
+        ? createHash("md5")
+            .update(readFileSync(path.join(fullDir, files[i]), "utf-8"))
+            .digest("hex")
+        : "dev",
+    };
+  }
+
+  // In dev we create the file with the fake hash in the filename
+  if (env.isProdBuild()) {
+    mapFiles(outDir, ".json", (filename) => {
+      const parsed = path.parse(filename);
+
+      // nl.json -> nl-<hash>.json
+      if (!(parsed.name in fingerprints)) {
+        throw new Error(`Unable to find hash for ${filename}`);
+      }
+
+      renameSync(
+        filename,
+        `${parsed.dir}/${parsed.name}-${fingerprints[parsed.name].hash}${
+          parsed.ext
+        }`
+      );
+    });
+  }
+
+  const stream = source("translationFingerprints.json");
+  stream.write(JSON.stringify(fingerprints));
+  process.nextTick(() => stream.end());
+  return stream.pipe(vinylBuffer()).pipe(gulp.dest(workDir));
+});
+
+gulp.task("build-translation-fragment-supervisor", () =>
+  gulp
+    .src(fullDir + "/*.json")
+    .pipe(transform((data) => data.supervisor))
+    .pipe(
+      rename((filePath) => {
+        // In dev we create the file with the fake hash in the filename
+        if (!env.isProdBuild()) {
+          filePath.basename += "-dev";
+        }
+      })
+    )
+    .pipe(gulp.dest(workDir + "/supervisor"))
+);
+
+gulp.task("build-translation-flatten-supervisor", () =>
+  gulp
+    .src(workDir + "/supervisor/*.json")
+    .pipe(
+      transform((data) =>
+        // Polymer.AppLocalizeBehavior requires flattened json
+        flatten(data)
+      )
+    )
+    .pipe(gulp.dest(outDir))
+);
+
+gulp.task("build-translation-write-metadata", () =>
+  gulp
+    .src([
+      path.join(paths.translations_src, "translationMetadata.json"),
+      ...(env.isProdBuild() ? [] : [workDir + "/testMetadata.json"]),
+      workDir + "/translationFingerprints.json",
+    ])
+    .pipe(merge({}))
+    .pipe(
+      transform((data) => {
+        const newData = {};
+        Object.entries(data).forEach(([key, value]) => {
+          // Filter out translations without native name.
+          if (value.nativeName) {
+            newData[key] = value;
+          } else {
+            console.warn(
+              `Skipping language ${key}. Native name was not translated.`
+            );
+          }
+        });
+        return newData;
+      })
+    )
+    .pipe(
+      transform((data) => ({
+        fragments: TRANSLATION_FRAGMENTS,
+        translations: data,
+      }))
+    )
+    .pipe(rename("translationMetadata.json"))
+    .pipe(gulp.dest(workDir))
+);
+
+gulp.task(
+  "create-translations",
+  gulp.series(
+    gulp.parallel("create-test-metadata", "create-test-translation"),
+    "build-master-translation",
+    "build-merged-translations",
+    gulp.parallel(...splitTasks),
+    "build-flattened-translations"
+  )
+);
 
 gulp.task(
   "build-translations",
   gulp.series(
     gulp.parallel(
       "fetch-nightly-translations",
-      gulp.series("clean-translations", makeWorkDir)
+      gulp.series("clean-translations", "ensure-translations-build-dir")
     ),
-    createTestTranslation,
+    "create-translations",
-    createMasterTranslation,
+    "build-translation-fingerprints",
-    createTranslations,
+    "build-translation-write-metadata"
-    writeTranslationMetaData
   )
 );
 
 gulp.task(
   "build-supervisor-translations",
-  gulp.series(toggleSupervisorFragment, "build-translations")
+  gulp.series(
+    gulp.parallel(
+      "fetch-nightly-translations",
+      gulp.series("clean-translations", "ensure-translations-build-dir")
+    ),
+    gulp.parallel("create-test-metadata", "create-test-translation"),
+    "build-master-translation",
+    "build-merged-translations",
+    "build-translation-fragment-supervisor",
+    "build-translation-flatten-supervisor",
+    "build-translation-fingerprints",
+    "build-translation-write-metadata"
+  )
 );

build-scripts/gulp/webpack.js

@@ -40,12 +40,8 @@ const runDevServer = async ({
   compiler,
   contentBase,
   port,
-  listenHost = undefined,
+  listenHost = "localhost",
 }) => {
-  if (listenHost === undefined) {
-    // For dev container, we need to listen on all hosts
-    listenHost = env.isDevContainer() ? "0.0.0.0" : "localhost";
-  }
   const server = new WebpackDevServer(
     {
       hot: false,
@@ -103,7 +99,7 @@ gulp.task("webpack-watch-app", () => {
   ).watch({ poll: isWsl }, doneHandler());
   gulp.watch(
     path.join(paths.translations_src, "en.json"),
-    gulp.series("build-translations", "copy-translations-app")
+    gulp.series("create-translations", "copy-translations-app")
   );
 });
 

build-scripts/rollup-plugins/dont-hash-plugin.cjs

@@ -0,0 +1,14 @@
+module.exports = function (opts = {}) {
+  const dontHash = opts.dontHash || new Set();
+
+  return {
+    name: "dont-hash",
+    renderChunk(_code, chunk, _options) {
+      if (!chunk.isEntry || !dontHash.has(chunk.name)) {
+        return null;
+      }
+      chunk.fileName = `${chunk.name}.js`;
+      return null;
+    },
+  };
+};

build-scripts/rollup-plugins/ignore-plugin.cjs

@@ -0,0 +1,24 @@
+module.exports = function (userOptions = {}) {
+  // Files need to be absolute paths.
+  // This only works if the file has no exports
+  // and only is imported for its side effects
+  const files = userOptions.files || [];
+
+  if (files.length === 0) {
+    return {
+      name: "ignore",
+    };
+  }
+
+  return {
+    name: "ignore",
+
+    load(id) {
+      return files.some((toIgnorePath) => id.startsWith(toIgnorePath))
+        ? {
+            code: "",
+          }
+        : null;
+    },
+  };
+};

build-scripts/rollup-plugins/manifest-plugin.cjs

@@ -0,0 +1,34 @@
+const url = require("url");
+
+const defaultOptions = {
+  publicPath: "",
+};
+
+module.exports = function (userOptions = {}) {
+  const options = { ...defaultOptions, ...userOptions };
+
+  return {
+    name: "manifest",
+    generateBundle(outputOptions, bundle) {
+      const manifest = {};
+
+      for (const chunk of Object.values(bundle)) {
+        if (!chunk.isEntry) {
+          continue;
+        }
+        // Add js extension to mimic Webpack manifest.
+        manifest[`${chunk.name}.js`] = url.resolve(
+          options.publicPath,
+          chunk.fileName
+        );
+      }
+
+      this.emitFile({
+        type: "asset",
+        source: JSON.stringify(manifest, undefined, 2),
+        name: "manifest.json",
+        fileName: "manifest.json",
+      });
+    },
+  };
+};

build-scripts/rollup-plugins/worker-plugin.cjs

@@ -0,0 +1,152 @@
+// Worker plugin
+// Each worker will include all of its dependencies
+// instead of relying on an importer.
+
+// Forked from v.1.4.1
+// https://github.com/surma/rollup-plugin-off-main-thread
+/**
+ * Copyright 2018 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const rollup = require("rollup");
+const path = require("path");
+const MagicString = require("magic-string");
+
+const defaultOpts = {
+  // A RegExp to find `new Workers()` calls. The second capture group _must_
+  // capture the provided file name without the quotes.
+  workerRegexp: /new Worker\((["'])(.+?)\1(,[^)]+)?\)/g,
+  plugins: ["node-resolve", "commonjs", "babel", "terser", "ignore"],
+};
+
+async function getBundledWorker(workerPath, rollupOptions) {
+  const bundle = await rollup.rollup({
+    ...rollupOptions,
+    input: {
+      worker: workerPath,
+    },
+  });
+  const { output } = await bundle.generate({
+    // Generates cleanest output, we shouldn't have any imports/exports
+    // that would be incompatible with ES5.
+    format: "es",
+    // We should not export anything. This will fail build if we are.
+    exports: "none",
+  });
+
+  let code;
+
+  for (const chunkOrAsset of output) {
+    if (chunkOrAsset.name === "worker") {
+      code = chunkOrAsset.code;
+    } else if (chunkOrAsset.type !== "asset") {
+      throw new Error("Unexpected extra output");
+    }
+  }
+
+  return code;
+}
+
+module.exports = function (opts = {}) {
+  opts = { ...defaultOpts, ...opts };
+
+  let rollupOptions;
+  let refIds;
+
+  return {
+    name: "hass-worker",
+
+    async buildStart(options) {
+      refIds = {};
+      rollupOptions = {
+        plugins: options.plugins.filter((plugin) =>
+          opts.plugins.includes(plugin.name)
+        ),
+      };
+    },
+
+    async transform(code, id) {
+      // Copy the regexp as they are stateful and this hook is async.
+      const workerRegexp = new RegExp(
+        opts.workerRegexp.source,
+        opts.workerRegexp.flags
+      );
+      if (!workerRegexp.test(code)) {
+        return undefined;
+      }
+
+      const ms = new MagicString(code);
+      // Reset the regexp
+      workerRegexp.lastIndex = 0;
+      for (;;) {
+        const match = workerRegexp.exec(code);
+        if (!match) {
+          break;
+        }
+
+        const workerFile = match[2];
+        let optionsObject = {};
+        // Parse the optional options object
+        if (match[3] && match[3].length > 0) {
+          // FIXME: ooooof!
+          // eslint-disable-next-line @typescript-eslint/no-implied-eval
+          optionsObject = new Function(`return ${match[3].slice(1)};`)();
+        }
+        delete optionsObject.type;
+
+        if (!/^.*\//.test(workerFile)) {
+          this.warn(
+            `Paths passed to the Worker constructor must be relative or absolute, i.e. start with /, ./ or ../ (just like dynamic import!). Ignoring "${workerFile}".`
+          );
+          continue;
+        }
+
+        // Find worker file and store it as a chunk with ID prefixed for our loader
+        // eslint-disable-next-line no-await-in-loop
+        const resolvedWorkerFile = (await this.resolve(workerFile, id)).id;
+        let chunkRefId;
+        if (resolvedWorkerFile in refIds) {
+          chunkRefId = refIds[resolvedWorkerFile];
+        } else {
+          this.addWatchFile(resolvedWorkerFile);
+          // eslint-disable-next-line no-await-in-loop
+          const source = await getBundledWorker(
+            resolvedWorkerFile,
+            rollupOptions
+          );
+          chunkRefId = refIds[resolvedWorkerFile] = this.emitFile({
+            name: path.basename(resolvedWorkerFile),
+            source,
+            type: "asset",
+          });
+        }
+
+        const workerParametersStartIndex = match.index + "new Worker(".length;
+        const workerParametersEndIndex =
+          match.index + match[0].length - ")".length;
+
+        ms.overwrite(
+          workerParametersStartIndex,
+          workerParametersEndIndex,
+          `import.meta.ROLLUP_FILE_URL_${chunkRefId}, ${JSON.stringify(
+            optionsObject
+          )}`
+        );
+      }
+
+      return {
+        code: ms.toString(),
+        map: ms.generateMap({ hires: true }),
+      };
+    },
+  };
+};

build-scripts/rollup.cjs

@@ -0,0 +1,146 @@
+const path = require("path");
+
+const commonjs = require("@rollup/plugin-commonjs");
+const resolve = require("@rollup/plugin-node-resolve");
+const json = require("@rollup/plugin-json");
+const { babel } = require("@rollup/plugin-babel");
+const replace = require("@rollup/plugin-replace");
+const visualizer = require("rollup-plugin-visualizer");
+const { string } = require("rollup-plugin-string");
+const { terser } = require("rollup-plugin-terser");
+const manifest = require("./rollup-plugins/manifest-plugin.cjs");
+const worker = require("./rollup-plugins/worker-plugin.cjs");
+const dontHashPlugin = require("./rollup-plugins/dont-hash-plugin.cjs");
+const ignore = require("./rollup-plugins/ignore-plugin.cjs");
+
+const bundle = require("./bundle.cjs");
+const paths = require("./paths.cjs");
+
+const extensions = [".js", ".ts"];
+
+/**
+ * @param {Object} arg
+ * @param { import("rollup").InputOption } arg.input
+ */
+const createRollupConfig = ({
+  entry,
+  outputPath,
+  defineOverlay,
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  publicPath,
+  dontHash,
+  isWDS,
+}) => ({
+  /**
+   * @type { import("rollup").InputOptions }
+   */
+  inputOptions: {
+    input: entry,
+    // Some entry points contain no JavaScript. This setting silences a warning about that.
+    // https://rollupjs.org/configuration-options/#preserveentrysignatures
+    preserveEntrySignatures: false,
+    plugins: [
+      ignore({
+        files: bundle
+          .emptyPackages({ latestBuild })
+          // TEMP HACK: Makes Rollup build work again
+          .concat(
+            require.resolve(
+              "@webcomponents/scoped-custom-element-registry/scoped-custom-element-registry.min"
+            )
+          ),
+      }),
+      resolve({
+        extensions,
+        preferBuiltins: false,
+        browser: true,
+        rootDir: paths.polymer_dir,
+      }),
+      commonjs(),
+      json(),
+      babel({
+        ...bundle.babelOptions({ latestBuild, isProdBuild }),
+        extensions,
+        babelHelpers: isWDS ? "inline" : "bundled",
+      }),
+      string({
+        // Import certain extensions as strings
+        include: [path.join(paths.polymer_dir, "node_modules/**/*.css")],
+      }),
+      replace(bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })),
+      !isWDS &&
+        manifest({
+          publicPath,
+        }),
+      !isWDS && worker(),
+      !isWDS && dontHashPlugin({ dontHash }),
+      !isWDS && isProdBuild && terser(bundle.terserOptions({ latestBuild })),
+      !isWDS &&
+        isStatsBuild &&
+        visualizer({
+          // https://github.com/btd/rollup-plugin-visualizer#options
+          open: true,
+          sourcemap: true,
+        }),
+    ].filter(Boolean),
+  },
+  /**
+   * @type { import("rollup").OutputOptions }
+   */
+  outputOptions: {
+    // https://rollupjs.org/configuration-options/#output-dir
+    dir: outputPath,
+    // https://rollupjs.org/configuration-options/#output-format
+    format: latestBuild ? "es" : "systemjs",
+    // https://rollupjs.org/configuration-options/#output-externallivebindings
+    externalLiveBindings: false,
+    // https://rollupjs.org/configuration-options/#output-entryfilenames
+    // https://rollupjs.org/configuration-options/#output-chunkfilenames
+    // https://rollupjs.org/configuration-options/#output-assetfilenames
+    entryFileNames:
+      isProdBuild && !isStatsBuild ? "[name]-[hash].js" : "[name].js",
+    chunkFileNames: isProdBuild && !isStatsBuild ? "c.[hash].js" : "[name].js",
+    assetFileNames: isProdBuild && !isStatsBuild ? "a.[hash].js" : "[name].js",
+    // https://rollupjs.org/configuration-options/#output-sourcemap
+    sourcemap: isProdBuild ? true : "inline",
+  },
+});
+
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) =>
+  createRollupConfig(
+    bundle.config.app({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+      isWDS,
+    })
+  );
+
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createRollupConfig(
+    bundle.config.demo({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+    })
+  );
+
+const createCastConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+
+const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
+
+const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
+
+module.exports = {
+  createAppConfig,
+  createDemoConfig,
+  createCastConfig,
+  createHassioConfig,
+  createGalleryConfig,
+  createRollupConfig,
+};

build-scripts/util.cjs

@@ -0,0 +1,16 @@
+const path = require("path");
+const fs = require("fs");
+
+// Helper function to map recursively over files in a folder and it's subfolders
+module.exports.mapFiles = function mapFiles(startPath, filter, mapFunc) {
+  const files = fs.readdirSync(startPath);
+  for (let i = 0; i < files.length; i++) {
+    const filename = path.join(startPath, files[i]);
+    const stat = fs.lstatSync(filename);
+    if (stat.isDirectory()) {
+      mapFiles(filename, filter, mapFunc);
+    } else if (filename.indexOf(filter) >= 0) {
+      mapFunc(filename);
+    }
+  }
+};

build-scripts/webpack.cjs

@@ -10,7 +10,6 @@ const WebpackBar = require("webpackbar");
 const {
   TransformAsyncModulesPlugin,
 } = require("transform-async-modules-webpack-plugin");
-const { dependencies } = require("../package.json");
 const paths = require("./paths.cjs");
 const bundle = require("./bundle.cjs");
 
@@ -63,25 +62,17 @@ const createWebpackConfig = ({
       rules: [
         {
           test: /\.m?js$|\.ts$/,
-          use: (info) => ({
+          use: {
             loader: "babel-loader",
             options: {
-              ...bundle.babelOptions({
+              ...bundle.babelOptions({ latestBuild, isProdBuild, isTestBuild }),
-                latestBuild,
-                isProdBuild,
-                isTestBuild,
-                sw: info.issuerLayer === "sw",
-              }),
               cacheDirectory: !isProdBuild,
               cacheCompression: false,
             },
-          }),
+          },
           resolve: {
             fullySpecified: false,
           },
-          parser: {
-            worker: ["*context.audioWorklet.addModule()", "..."],
-          },
         },
         {
           test: /\.css$/,
@@ -100,15 +91,11 @@ const createWebpackConfig = ({
       moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
       chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
       splitChunks: {
-        // Disable splitting for web workers and worklets because imports of
+        // Disable splitting for web workers with ESM output
-        // external chunks are broken for:
+        // Imports of external chunks are broken
-        // - ESM output: https://github.com/webpack/webpack/issues/17014
+        chunks: latestBuild
-        // - Worklets use `importScripts`: https://github.com/webpack/webpack/issues/11543
+          ? (chunk) => !chunk.canBeInitial() && !/^.+-worker$/.test(chunk.name)
-        chunks: (chunk) =>
+          : undefined,
-          !chunk.canBeInitial() &&
-          !new RegExp(`^.+-work${latestBuild ? "(?:let|er)" : "let"}$`).test(
-            chunk.name
-          ),
       },
     },
     plugins: [
@@ -169,15 +156,11 @@ const createWebpackConfig = ({
           transform: (stats) => JSON.stringify(filterStats(stats)),
         }),
       !latestBuild &&
-        new TransformAsyncModulesPlugin({
+        new TransformAsyncModulesPlugin({ browserslistEnv: "legacy" }),
-          browserslistEnv: "legacy",
-          runtime: { version: dependencies["@babel/runtime"] },
-        }),
     ].filter(Boolean),
     resolve: {
       extensions: [".ts", ".js", ".json"],
       alias: {
-        "lit/static-html$": "lit/static-html.js",
         "lit/decorators$": "lit/decorators.js",
         "lit/directive$": "lit/directive.js",
         "lit/directives/until$": "lit/directives/until.js",
@@ -188,7 +171,6 @@ const createWebpackConfig = ({
         "lit/directives/cache$": "lit/directives/cache.js",
         "lit/directives/repeat$": "lit/directives/repeat.js",
         "lit/directives/live$": "lit/directives/live.js",
-        "lit/directives/keyed$": "lit/directives/keyed.js",
         "lit/polyfill-support$": "lit/polyfill-support.js",
         "@lit-labs/virtualizer/layouts/grid":
           "@lit-labs/virtualizer/layouts/grid.js",
@@ -241,7 +223,6 @@ const createWebpackConfig = ({
       ),
     },
     experiments: {
-      layers: true,
       outputModule: true,
     },
   };

cast/public/sw-legacy.js

@@ -1,5 +0,0 @@
-"use strict";
-
-self.addEventListener("fetch", (event) => {
-  event.respondWith(fetch(event.request));
-});

cast/rollup.config.js

@@ -0,0 +1,10 @@
+import rollup from "../build-scripts/rollup.cjs";
+import env from "../build-scripts/env.cjs";
+
+const config = rollup.createCastConfig({
+  isProdBuild: env.isProdBuild(),
+  latestBuild: true,
+  isStatsBuild: env.isStatsBuild(),
+});
+
+export default { ...config.inputOptions, output: config.outputOptions };

cast/src/html/faq.html.template

@@ -36,7 +36,13 @@
   </head>
   <body>
     <%= renderTemplate("../../../src/html/_js_base.html.template") %>
-    <%= renderTemplate("../../../src/html/_script_loader.html.template") %>
+    <script>
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
+      window.latestJS = true;
+    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
     <hc-layout subtitle="FAQ">
       <style>
         a {
@@ -139,7 +145,7 @@
         </p>
       </div>
 
-      <div class="section-header">What does Home Assistant Cast do?</div>
+      <div class="section-header">Wat does Home Assistant Cast do?</div>
       <div class="card-content">
         <p>
           Home Assistant Cast is a receiver application for the Chromecast. When
@@ -226,5 +232,17 @@ http:
         </p>
       </div>
     </hc-layout>
+
+    <script>
+      var _gaq = [["_setAccount", "UA-57927901-9"], ["_trackPageview"]];
+      (function (d, t) {
+        var g = d.createElement(t),
+          s = d.getElementsByTagName(t)[0];
+        g.src =
+          ("https:" == location.protocol ? "//ssl" : "//www") +
+          ".google-analytics.com/ga.js";
+        s.parentNode.insertBefore(g, s);
+      })(document, "script");
+    </script>
   </body>
 </html>

cast/src/html/index.html.template

@@ -13,9 +13,15 @@
     <%= renderTemplate("_social_meta.html.template") %>
   </head>
   <body>
-    <hc-connect></hc-connect>
     <%= renderTemplate("../../../src/html/_js_base.html.template") %>
-    <%= renderTemplate("../../../src/html/_script_loader.html.template") %>
+    <hc-connect></hc-connect>
+    <script>
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
+      window.latestJS = true;
+    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
     <script>
     (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
     (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),

cast/src/html/media.html.template

@@ -14,10 +14,22 @@
         --background-color: #41bdf5;
       }
     </style>
+    <script>
+      var _gaq=[['_setAccount','UA-57927901-10'],['_trackPageview']];
+      (function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];
+      g.src=('https:'==location.protocol?'//ssl':'//www')+'.google-analytics.com/ga.js';
+      s.parentNode.insertBefore(g,s)}(document,'script'));
+    </script>
   </head>
   <body>
-    <cast-media-player></cast-media-player>
     <%= renderTemplate("../../../src/html/_js_base.html.template") %>
-    <%= renderTemplate("../../../src/html/_script_loader.html.template") %>
+    <cast-media-player></cast-media-player>
+    <script>
+      <% for (const entry of latestEntryJS) { %>
+        import("<%= entry %>");
+      <% } %>
+      window.latestJS = true;
+    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
   </body>
 </html>

cast/src/html/receiver.html.template

@@ -11,4 +11,10 @@
       font-size: initial;
     }
   </style>
+  <script>
+  var _gaq=[['_setAccount','UA-57927901-10'],['_trackPageview']];
+  (function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];
+  g.src=('https:'==location.protocol?'//ssl':'//www')+'.google-analytics.com/ga.js';
+  s.parentNode.insertBefore(g,s)}(document,'script'));
+  </script>
 </html>

cast/src/launcher/entrypoint.ts

@@ -1,3 +1,4 @@
+import "../../../src/resources/safari-14-attachshadow-patch";
 import "./layout/hc-connect";
 
 import("../../../src/resources/ha-style");

cast/src/launcher/layout/hc-cast.ts

@@ -1,12 +1,11 @@
 import "@material/mwc-button/mwc-button";
-import "@material/mwc-list/mwc-list";
+import { mdiCast, mdiCastConnected } from "@mdi/js";
-import type { ActionDetail } from "@material/mwc-list/mwc-list";
+import "@polymer/paper-item/paper-icon-item";
-import { mdiCast, mdiCastConnected, mdiViewDashboard } from "@mdi/js";
+import "@polymer/paper-listbox/paper-listbox";
-import type { Auth, Connection } from "home-assistant-js-websocket";
+import { Auth, Connection } from "home-assistant-js-websocket";
-import type { CSSResultGroup, TemplateResult } from "lit";
+import { CSSResultGroup, LitElement, TemplateResult, css, html } from "lit";
-import { LitElement, css, html } from "lit";
 import { customElement, property, state } from "lit/decorators";
-import type { CastManager } from "../../../../src/cast/cast_manager";
+import { CastManager } from "../../../../src/cast/cast_manager";
 import {
   castSendShowLovelaceView,
   ensureConnectedCastSession,
@@ -25,11 +24,10 @@ import {
   getLovelaceCollection,
 } from "../../../../src/data/lovelace";
 import { isStrategyDashboard } from "../../../../src/data/lovelace/config/types";
-import type { LovelaceViewConfig } from "../../../../src/data/lovelace/config/view";
+import { LovelaceViewConfig } from "../../../../src/data/lovelace/config/view";
 import "../../../../src/layouts/hass-loading-screen";
 import { generateDefaultViewConfig } from "../../../../src/panels/lovelace/common/generate-lovelace-config";
 import "./hc-layout";
-import "../../../../src/components/ha-list-item";
 
 @customElement("hc-cast")
 class HcCast extends LitElement {
@@ -85,38 +83,34 @@ class HcCast extends LitElement {
               `
             : html`
                 <div class="section-header">PICK A VIEW</div>
-                <mwc-list @action=${this._handlePickView} activatable>
+                <paper-listbox
+                  attr-for-selected="data-path"
+                  .selected=${this.castManager.status.lovelacePath || ""}
+                >
                   ${(
                     this.lovelaceViews ?? [
                       generateDefaultViewConfig({}, {}, {}, {}, () => ""),
                     ]
                   ).map(
                     (view, idx) => html`
-                      <ha-list-item
+                      <paper-icon-item
-                        graphic="avatar"
+                        @click=${this._handlePickView}
-                        .activated=${this.castManager.status?.lovelacePath ===
+                        data-path=${view.path || idx}
-                        (view.path ?? idx)}
-                        .selected=${this.castManager.status?.lovelacePath ===
-                        (view.path ?? idx)}
                       >
-                        ${view.title || view.path || "Unnamed view"}
                         ${view.icon
                           ? html`
                               <ha-icon
                                 .icon=${view.icon}
-                                slot="graphic"
+                                slot="item-icon"
                               ></ha-icon>
                             `
-                          : html`<ha-svg-icon
+                          : ""}
-                              slot="item-icon"
+                        ${view.title || view.path}
-                              .path=${mdiViewDashboard}
+                      </paper-icon-item>
-                            ></ha-svg-icon>`}
-                      </ha-list-item>
                     `
-                  )}</mwc-list
+                  )}
-                >
+                </paper-listbox>
               `}
-
         <div class="card-actions">
           ${this.castManager.status
             ? html`
@@ -188,8 +182,8 @@ class HcCast extends LitElement {
     this.castManager.requestSession();
   }
 
-  private async _handlePickView(ev: CustomEvent<ActionDetail>) {
+  private async _handlePickView(ev: Event) {
-    const path = this.lovelaceViews![ev.detail.index].path ?? ev.detail.index;
+    const path = (ev.currentTarget as any).getAttribute("data-path");
     await ensureConnectedCastSession(this.castManager!, this.auth!);
     castSendShowLovelaceView(this.castManager, this.auth.data.hassUrl, path);
   }
@@ -252,14 +246,25 @@ class HcCast extends LitElement {
         height: 18px;
       }
 
-      ha-list-item ha-icon,
+      paper-listbox {
-      ha-list-item ha-svg-icon {
+        padding-top: 0;
+      }
+
+      paper-listbox ha-icon {
         padding: 12px;
         color: var(--secondary-text-color);
       }
 
-      :host([hide-icons]) ha-icon {
+      paper-icon-item {
-        display: none;
+        cursor: pointer;
+      }
+
+      paper-icon-item[disabled] {
+        cursor: initial;
+      }
+
+      :host([hide-icons]) paper-icon-item {
+        --paper-item-icon-width: 0px;
       }
 
       .spacer {

cast/src/launcher/layout/hc-connect.ts

@@ -1,23 +1,19 @@
 import "@material/mwc-button";
 import { mdiCastConnected, mdiCast } from "@mdi/js";
-import type {
+import {
   Auth,
   Connection,
-  getAuthOptions,
-} from "home-assistant-js-websocket";
-import {
   createConnection,
   ERR_CANNOT_CONNECT,
   ERR_HASS_HOST_REQUIRED,
   ERR_INVALID_AUTH,
   ERR_INVALID_HTTPS_TO_HTTP,
   getAuth,
+  getAuthOptions,
 } from "home-assistant-js-websocket";
-import type { CSSResultGroup, TemplateResult } from "lit";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-import { css, html, LitElement } from "lit";
 import { customElement, state } from "lit/decorators";
-import type { CastManager } from "../../../../src/cast/cast_manager";
+import { CastManager, getCastManager } from "../../../../src/cast/cast_manager";
-import { getCastManager } from "../../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../../src/cast/receiver_messages";
 import {
   loadTokens,

cast/src/launcher/layout/hc-layout.ts

@@ -1,7 +1,10 @@
-import type { Auth, Connection, HassUser } from "home-assistant-js-websocket";
+import {
-import { getUser } from "home-assistant-js-websocket";
+  Auth,
-import type { CSSResultGroup, TemplateResult } from "lit";
+  Connection,
-import { css, html, LitElement } from "lit";
+  getUser,
+  HassUser,
+} from "home-assistant-js-websocket";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
 import { customElement, property } from "lit/decorators";
 import "../../../../src/components/ha-card";
 
@@ -85,7 +88,7 @@ class HcLayout extends LitElement {
       }
 
       .card-header {
-        color: var(--ha-card-header-color, var(--primary-text-color));
+        color: var(--ha-card-header-color, --primary-text-color);
         font-family: var(--ha-card-header-font-family, inherit);
         font-size: var(--ha-card-header-font-size, 24px);
         letter-spacing: -0.012em;

cast/src/receiver/demo/cast-demo-entities.ts

@@ -1,5 +1,4 @@
-import type { Entity } from "../../../../src/fake_data/entity";
+import { convertEntities, Entity } from "../../../../src/fake_data/entity";
-import { convertEntities } from "../../../../src/fake_data/entity";
 
 export const castDemoEntities: () => Entity[] = () =>
   convertEntities({

cast/src/receiver/demo/cast-demo-lovelace.ts

@@ -1,5 +1,5 @@
-import type { LovelaceCardConfig } from "../../../../src/data/lovelace/config/card";
+import { LovelaceCardConfig } from "../../../../src/data/lovelace/config/card";
-import type { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
 import { castContext } from "../cast_context";
 
 export const castDemoLovelace: () => LovelaceConfig = () => {

cast/src/receiver/entrypoint.ts

@@ -1,10 +1,10 @@
 import { framework } from "./cast_framework";
 import { CAST_NS } from "../../../src/cast/const";
-import type { HassMessage } from "../../../src/cast/receiver_messages";
+import { HassMessage } from "../../../src/cast/receiver_messages";
 import "../../../src/resources/custom-card-support";
 import { castContext } from "./cast_context";
 import { HcMain } from "./layout/hc-main";
-import type { ReceivedMessage } from "./types";
+import { ReceivedMessage } from "./types";
 
 const lovelaceController = new HcMain();
 document.body.append(lovelaceController);

cast/src/receiver/layout/hc-demo.ts

@@ -1,11 +1,13 @@
 import { html, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { mockHistory } from "../../../../demo/src/stubs/history";
-import type { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
-import type { MockHomeAssistant } from "../../../../src/fake_data/provide_hass";
+import {
-import { provideHass } from "../../../../src/fake_data/provide_hass";
+  MockHomeAssistant,
+  provideHass,
+} from "../../../../src/fake_data/provide_hass";
 import { HassElement } from "../../../../src/state/hass-element";
-import type { HomeAssistant } from "../../../../src/types";
+import { HomeAssistant } from "../../../../src/types";
 import { castDemoEntities } from "../demo/cast-demo-entities";
 import { castDemoLovelace } from "../demo/cast-demo-lovelace";
 import "./hc-lovelace";

cast/src/receiver/layout/hc-launch-screen.ts

@@ -1,7 +1,6 @@
-import type { CSSResultGroup, TemplateResult } from "lit";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-import { css, html, LitElement } from "lit";
 import { customElement, property } from "lit/decorators";
-import type { HomeAssistant } from "../../../../src/types";
+import { HomeAssistant } from "../../../../src/types";
 
 @customElement("hc-launch-screen")
 class HcLaunchScreen extends LitElement {

cast/src/receiver/layout/hc-lovelace.ts

@@ -1,18 +1,10 @@
-import {
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
-  css,
+import { customElement, property, query } from "lit/decorators";
-  type CSSResultGroup,
-  html,
-  LitElement,
-  type TemplateResult,
-} from "lit";
-import { customElement, property } from "lit/decorators";
 import { fireEvent } from "../../../../src/common/dom/fire_event";
-import type { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
-import { getPanelTitleFromUrlPath } from "../../../../src/data/panel";
+import { Lovelace } from "../../../../src/panels/lovelace/types";
-import type { Lovelace } from "../../../../src/panels/lovelace/types";
 import "../../../../src/panels/lovelace/views/hui-view";
-import "../../../../src/panels/lovelace/views/hui-view-container";
+import { HomeAssistant } from "../../../../src/types";
-import type { HomeAssistant } from "../../../../src/types";
 import "./hc-launch-screen";
 
 (window as any).loadCardHelpers = () =>
@@ -29,6 +21,8 @@ class HcLovelace extends LitElement {
 
   @property() public urlPath: string | null = null;
 
+  @query("hui-view") private _huiView?: HTMLElement;
+
   protected render(): TemplateResult {
     const index = this._viewIndex;
     if (index === undefined) {
@@ -50,24 +44,13 @@ class HcLovelace extends LitElement {
       saveConfig: async () => undefined,
       deleteConfig: async () => undefined,
       setEditMode: () => undefined,
-      showToast: () => undefined,
     };
-
-    const viewConfig = this.lovelaceConfig.views[index];
-    const background = viewConfig.background || this.lovelaceConfig.background;
-
     return html`
-      <hui-view-container
-        .hass=${this.hass}
-        .background=${background}
-        .theme=${viewConfig.theme}
-      >
       <hui-view
         .hass=${this.hass}
         .lovelace=${lovelace}
         .index=${index}
       ></hui-view>
-      </hui-view-container>
     `;
   }
 
@@ -78,12 +61,7 @@ class HcLovelace extends LitElement {
       const index = this._viewIndex;
 
       if (index !== undefined) {
-        const title = getPanelTitleFromUrlPath(
+        const dashboardTitle = this.lovelaceConfig.title || this.urlPath;
-          this.hass,
-          this.urlPath || "lovelace"
-        );
-
-        const dashboardTitle = title || this.urlPath;
 
         const viewTitle =
           this.lovelaceConfig.views[index].title ||
@@ -97,6 +75,19 @@ class HcLovelace extends LitElement {
                 }${viewTitle || ""}`
               : undefined,
         });
+
+        const configBackground =
+          this.lovelaceConfig.views[index].background ||
+          this.lovelaceConfig.background;
+
+        if (configBackground) {
+          this._huiView!.style.setProperty(
+            "--lovelace-background",
+            configBackground
+          );
+        } else {
+          this._huiView!.style.removeProperty("--lovelace-background");
+        }
       }
     }
   }
@@ -120,15 +111,19 @@ class HcLovelace extends LitElement {
 
   static get styles(): CSSResultGroup {
     return css`
-      hui-view-container {
+      :host {
-        display: flex;
-        position: relative;
         min-height: 100vh;
+        height: 0;
+        display: flex;
+        flex-direction: column;
         box-sizing: border-box;
+        background: var(--primary-background-color);
+      }
+      :host > * {
+        flex: 1;
       }
       hui-view {
-        flex: 1 1 100%;
+        background: var(--lovelace-background, var(--primary-background-color));
-        max-width: 100%;
       }
     `;
   }

cast/src/receiver/layout/hc-main.ts

@@ -1,40 +1,40 @@
-import type { UnsubscribeFunc } from "home-assistant-js-websocket";
+import {
-import { createConnection, getAuth } from "home-assistant-js-websocket";
+  createConnection,
-import type { TemplateResult } from "lit";
+  getAuth,
-import { html } from "lit";
+  UnsubscribeFunc,
+} from "home-assistant-js-websocket";
+import { html, TemplateResult } from "lit";
 import { customElement, state } from "lit/decorators";
 import { CAST_NS } from "../../../../src/cast/const";
-import type {
+import {
   ConnectMessage,
   GetStatusMessage,
   HassMessage,
   ShowDemoMessage,
   ShowLovelaceViewMessage,
 } from "../../../../src/cast/receiver_messages";
-import type {
+import {
+  ReceiverErrorCode,
   ReceiverErrorMessage,
   ReceiverStatusMessage,
 } from "../../../../src/cast/sender_messages";
-import { ReceiverErrorCode } from "../../../../src/cast/sender_messages";
 import { atLeastVersion } from "../../../../src/common/config/version";
 import { isNavigationClick } from "../../../../src/common/dom/is-navigation-click";
 import {
   getLegacyLovelaceCollection,
   getLovelaceCollection,
 } from "../../../../src/data/lovelace";
-import type {
+import {
+  isStrategyDashboard,
   LegacyLovelaceConfig,
   LovelaceConfig,
   LovelaceDashboardStrategyConfig,
 } from "../../../../src/data/lovelace/config/types";
-import { isStrategyDashboard } from "../../../../src/data/lovelace/config/types";
 import { fetchResources } from "../../../../src/data/lovelace/resource";
 import { loadLovelaceResources } from "../../../../src/panels/lovelace/common/load-resources";
 import { HassElement } from "../../../../src/state/hass-element";
 import { castContext } from "../cast_context";
 import "./hc-launch-screen";
-import { getPanelTitleFromUrlPath } from "../../../../src/data/panel";
-import { checkLovelaceConfig } from "../../../../src/panels/lovelace/common/check-lovelace-config";
 
 const DEFAULT_CONFIG: LovelaceDashboardStrategyConfig = {
   strategy: {
@@ -359,14 +359,8 @@ export class HcMain extends HassElement {
   }
 
   private _handleNewLovelaceConfig(lovelaceConfig: LovelaceConfig) {
-    const title = getPanelTitleFromUrlPath(
+    castContext.setApplicationState(lovelaceConfig.title || "");
-      this.hass!,
+    this._lovelaceConfig = lovelaceConfig;
-      this._urlPath || "lovelace"
-    );
-    castContext.setApplicationState(title || "");
-    this._lovelaceConfig = checkLovelaceConfig(
-      lovelaceConfig
-    ) as LovelaceConfig;
   }
 
   private _handleShowDemo(_msg: ShowDemoMessage) {

demo/public/sw-legacy.js

@@ -1,5 +0,0 @@
-"use strict";
-
-self.addEventListener("fetch", (event) => {
-  event.respondWith(fetch(event.request));
-});

demo/rollup.config.js

@@ -0,0 +1,10 @@
+import rollup from "../build-scripts/rollup.cjs";
+import env from "../build-scripts/env.cjs";
+
+const config = rollup.createDemoConfig({
+  isProdBuild: env.isProdBuild(),
+  latestBuild: true,
+  isStatsBuild: env.isStatsBuild(),
+});
+
+export default { ...config.inputOptions, output: config.outputOptions };

demo/src/configs/arsaboo/entities.ts

@@ -1,5 +1,5 @@
 import { convertEntities } from "../../../../src/fake_data/entity";
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
   convertEntities({

demo/src/configs/arsaboo/index.ts

@@ -1,4 +1,4 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 import { demoEntitiesArsaboo } from "./entities";
 import { demoLovelaceArsaboo } from "./lovelace";
 import { demoThemeArsaboo } from "./theme";

demo/src/configs/arsaboo/lovelace.ts

@@ -1,4 +1,4 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
   title: "Home Assistant",

demo/src/configs/demo-configs.ts

@@ -1,7 +1,7 @@
-import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
-import type { Lovelace } from "../../../src/panels/lovelace/types";
+import { Lovelace } from "../../../src/panels/lovelace/types";
 import { energyEntities } from "../stubs/entities";
-import type { DemoConfig } from "./types";
+import { DemoConfig } from "./types";
 
 export const demoConfigs: Array<() => Promise<DemoConfig>> = [
   () => import("./sections").then((mod) => mod.demoSections),

demo/src/configs/jimpower/entities.ts

@@ -1,5 +1,5 @@
 import { convertEntities } from "../../../../src/fake_data/entity";
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoEntitiesJimpower: DemoConfig["entities"] = () =>
   convertEntities({

demo/src/configs/jimpower/index.ts

@@ -1,4 +1,4 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 import { demoEntitiesJimpower } from "./entities";
 import { demoLovelaceJimpower } from "./lovelace";
 import { demoThemeJimpower } from "./theme";

demo/src/configs/jimpower/lovelace.ts

@@ -1,5 +1,5 @@
 import "../../custom-cards/card-modder";
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoLovelaceJimpower: DemoConfig["lovelace"] = () => ({
   name: "Kingia Castle",

demo/src/configs/kernehed/entities.ts

@@ -1,5 +1,5 @@
 import { convertEntities } from "../../../../src/fake_data/entity";
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoEntitiesKernehed: DemoConfig["entities"] = () =>
   convertEntities({

demo/src/configs/kernehed/index.ts

@@ -1,4 +1,4 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 import { demoEntitiesKernehed } from "./entities";
 import { demoLovelaceKernehed } from "./lovelace";
 import { demoThemeKernehed } from "./theme";

demo/src/configs/kernehed/lovelace.ts

@@ -1,4 +1,4 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoLovelaceKernehed: DemoConfig["lovelace"] = () => ({
   name: "Hem",

demo/src/configs/sections/description.ts

@@ -0,0 +1,16 @@
+import { html } from "lit";
+import { DemoConfig } from "../types";
+
+export const demoLovelaceDescription: DemoConfig["description"] = (
+  localize
+) => html`
+  <p>
+    ${localize("ui.panel.page-demo.config.sections.description", {
+      blog_post: html`<a
+        href="https://www.home-assistant.io/blog/2024/03/04/dashboard-chapter-1/"
+        target="_blank"
+        >${localize("ui.panel.page-demo.config.sections.description_blog_post")}
+      </a>`,
+    })}
+  </p>
+`;

demo/src/configs/sections/entities.ts

@@ -1,7 +1,7 @@
 import { convertEntities } from "../../../../src/fake_data/entity";
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
-export const demoEntitiesSections: DemoConfig["entities"] = (localize) =>
+export const demoEntitiesSections: DemoConfig["entities"] = () =>
   convertEntities({
     "cover.living_room_garden_shutter": {
       entity_id: "cover.living_room_garden_shutter",
@@ -111,70 +111,13 @@ export const demoEntitiesSections: DemoConfig["entities"] = (localize) =>
         friendly_name: "Living room Temperature",
       },
     },
-    "sensor.living_room_humidity": {
-      entity_id: "sensor.living_room_humidity",
-      state: "57",
-      attributes: {
-        state_class: "measurement",
-        unit_of_measurement: "%",
-        device_class: "humidity",
-        friendly_name: "Living room Humidity",
-      },
-    },
-    "sensor.outdoor_temperature": {
-      entity_id: "sensor.outdoor_temperature",
-      state: "10.5",
-      attributes: {
-        state_class: "measurement",
-        unit_of_measurement: "°C",
-        device_class: "temperature",
-        friendly_name: "Outdoor temperature",
-      },
-    },
-    "sensor.outdoor_humidity": {
-      entity_id: "sensor.outdoor_humidity",
-      state: "70.4",
-      attributes: {
-        state_class: "measurement",
-        unit_of_measurement: "%",
-        device_class: "humidity",
-        friendly_name: "Outdoor humidity",
-      },
-    },
-    "device_tracker.car": {
-      entity_id: "sensor.outdoor_humidity",
-      state: "not_home",
-      attributes: {
-        friendly_name: "Car",
-        icon: "mdi:car",
-      },
-    },
     "media_player.living_room_nest_mini": {
       entity_id: "media_player.living_room_nest_mini",
-      state: "playing",
+      state: "off",
       attributes: {
         device_class: "speaker",
-        volume_level: 0.18,
+        friendly_name: "Living room Nest Mini",
-        is_volume_muted: false,
+        supported_features: 152461,
-        media_content_type: "music",
-        media_duration: 300,
-        media_position: 0,
-        media_position_updated_at: new Date(
-          // 23 seconds in
-          new Date().getTime() - 23000
-        ).toISOString(),
-        media_title: "I Wasn't Born To Follow",
-        media_artist: "The Byrds",
-        media_album_name: "The Notorious Byrd Brothers",
-        source_list: ["It's A Party", "Radio HSL", "Retro 70s and 80s"],
-        shuffle: false,
-        night_sound: false,
-        speech_enhance: false,
-        friendly_name: localize(
-          "ui.panel.page-demo.config.sections.entities.media_player.living_room_nest_mini"
-        ),
-        entity_picture: "/assets/sections/images/media_player_family_room.jpg",
-        supported_features: 64063,
       },
     },
     "cover.kitchen_shutter": {
@@ -199,14 +142,6 @@ export const demoEntitiesSections: DemoConfig["entities"] = (localize) =>
         supported_features: 32,
       },
     },
-    "binary_sensor.kitchen_motion": {
-      entity_id: "light.kitchen_motion",
-      state: "on",
-      attributes: {
-        device_class: "motion",
-        friendly_name: "Kitchen motion",
-      },
-    },
     "light.worktop_spotlights": {
       entity_id: "light.worktop_spotlights",
       state: "off",
@@ -233,27 +168,8 @@ export const demoEntitiesSections: DemoConfig["entities"] = (localize) =>
       state: "on",
       attributes: {
         device_class: "speaker",
-        volume_level: 0.18,
+        friendly_name: "Kitchen Nest Audio",
-        is_volume_muted: false,
+        supported_features: 152461,
-        media_content_type: "music",
-        media_duration: 300,
-        media_position: 0,
-        media_position_updated_at: new Date(
-          // 23 seconds in
-          new Date().getTime() - 23000
-        ).toISOString(),
-        media_title: "I Wasn't Born To Follow",
-        media_artist: "The Byrds",
-        media_album_name: "The Notorious Byrd Brothers",
-        source_list: ["It's A Party", "Radio HSL", "Retro 70s and 80s"],
-        shuffle: false,
-        night_sound: false,
-        speech_enhance: false,
-        friendly_name: localize(
-          "ui.panel.page-demo.config.sections.entities.media_player.kitchen_nest_audio"
-        ),
-        entity_picture: "/assets/sections/images/media_player_family_room.jpg",
-        supported_features: 64063,
       },
     },
     "binary_sensor.tesla_wall_connector_vehicle_connected": {
@@ -417,36 +333,8 @@ export const demoEntitiesSections: DemoConfig["entities"] = (localize) =>
       entity_id: "media_player.study_nest_hub",
       state: "off",
       attributes: {
-        device_class: "speaker",
+        friendly_name: "Study Nest Hub",
-        volume_level: 0.18,
+        supported_features: 152461,
-        is_volume_muted: false,
-        media_content_type: "music",
-        media_duration: 300,
-        media_position: 0,
-        media_position_updated_at: new Date(
-          // 23 seconds in
-          new Date().getTime() - 23000
-        ).toISOString(),
-        media_title: "I Wasn't Born To Follow",
-        media_artist: "The Byrds",
-        media_album_name: "The Notorious Byrd Brothers",
-        source_list: ["It's A Party", "Radio HSL", "Retro 70s and 80s"],
-        shuffle: false,
-        night_sound: false,
-        speech_enhance: false,
-        friendly_name: localize(
-          "ui.panel.page-demo.config.sections.entities.media_player.study_nest_hub"
-        ),
-        entity_picture: "/assets/sections/images/media_player_family_room.jpg",
-        supported_features: 64063,
-      },
-    },
-    "switch.in_meeting": {
-      entity_id: "switch.in_meeting",
-      state: "on",
-      attributes: {
-        icon: "mdi:laptop-account",
-        friendly_name: "In a meeting",
       },
     },
     "sensor.standing_desk_height": {

demo/src/configs/sections/index.ts

@@ -1,4 +1,5 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
+import { demoLovelaceDescription } from "./description";
 import { demoEntitiesSections } from "./entities";
 import { demoLovelaceSections } from "./lovelace";
 
@@ -6,6 +7,7 @@ export const demoSections: DemoConfig = {
   authorName: "Home Assistant",
   authorUrl: "https://github.com/home-assistant/frontend/",
   name: "Home Demo",
+  description: demoLovelaceDescription,
   lovelace: demoLovelaceSections,
   entities: demoEntitiesSections,
   theme: () => ({}),

demo/src/configs/sections/lovelace.ts

@@ -1,64 +1,39 @@
-import { isFrontpageEmbed } from "../../util/is_frontpage";
+import { DemoConfig } from "../types";
-import type { DemoConfig } from "../types";
 
-export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
+export const demoLovelaceSections: DemoConfig["lovelace"] = () => ({
   title: "Home Assistant Demo",
   views: [
     {
       type: "sections",
-      title: isFrontpageEmbed ? "Home Assistant" : "Demo",
+      title: "Demo",
       path: "home",
       icon: "mdi:home-assistant",
-      badges: [
-        {
-          type: "entity",
-          entity: "sensor.outdoor_temperature",
-          color: "red",
-        },
-        {
-          type: "entity",
-          entity: "sensor.outdoor_humidity",
-          color: "indigo",
-        },
-        {
-          type: "entity",
-          entity: "device_tracker.car",
-        },
-      ],
       sections: [
-        ...(isFrontpageEmbed
+        {
-          ? []
+          title: "Welcome 👋",
-          : [
+          cards: [{ type: "custom:ha-demo-card" }],
+        },
         {
           cards: [
             {
-                    type: "heading",
+              type: "tile",
-                    heading: `${localize("ui.panel.page-demo.config.sections.titles.welcome")} 👋`,
+              entity: "cover.living_room_garden_shutter",
-                  },
+              name: "Garden",
-                  { type: "custom:ha-demo-card" },
-                ],
-              },
-            ]),
-        {
-          cards: [
-            {
-              type: "heading",
-              heading: localize(
-                "ui.panel.page-demo.config.sections.titles.living_room"
-              ),
-              icon: "mdi:sofa",
-              badges: [
-                {
-                  type: "entity",
-                  entity: "sensor.living_room_temperature",
-                  color: "red",
             },
             {
-                  type: "entity",
+              type: "tile",
-                  entity: "sensor.living_room_humidity",
+              entity: "cover.living_room_graveyard_shutter",
-                  color: "indigo",
+              name: "Rear",
             },
-              ],
+            {
+              type: "tile",
+              entity: "cover.living_room_left_shutter",
+              name: "Left",
+            },
+            {
+              type: "tile",
+              entity: "cover.living_room_right_shutter",
+              name: "Right",
             },
             {
               type: "tile",
@@ -79,34 +54,23 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
               entity: "light.bar_lamp",
             },
             {
-              type: "tile",
+              graph: "line",
-              entity: "cover.living_room_garden_shutter",
+              type: "sensor",
-              name: "Blinds",
+              entity: "sensor.living_room_temperature",
+              detail: 1,
+              name: "Temperature",
             },
             {
               type: "tile",
               entity: "media_player.living_room_nest_mini",
+              name: "Nest Mini",
             },
           ],
+          title: "🛋️ Living room ",
         },
         {
           type: "grid",
           cards: [
-            {
-              type: "heading",
-              heading: localize(
-                "ui.panel.page-demo.config.sections.titles.kitchen"
-              ),
-              icon: "mdi:fridge",
-              badges: [
-                {
-                  type: "entity",
-                  entity: "binary_sensor.kitchen_motion",
-                  show_state: false,
-                  color: "blue",
-                },
-              ],
-            },
             {
               type: "tile",
               entity: "cover.kitchen_shutter",
@@ -135,19 +99,14 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
             {
               type: "tile",
               entity: "media_player.kitchen_nest_audio",
+              name: "Nest Audio",
             },
           ],
+          title: "👩‍🍳 Kitchen",
         },
         {
           type: "grid",
           cards: [
-            {
-              type: "heading",
-              heading: localize(
-                "ui.panel.page-demo.config.sections.titles.energy"
-              ),
-              icon: "mdi:transmission-tower",
-            },
             {
               type: "tile",
               entity: "binary_sensor.tesla_wall_connector_vehicle_connected",
@@ -185,17 +144,11 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
               color: "dark-grey",
             },
           ],
+          title: "⚡️ Energy",
         },
         {
           type: "grid",
           cards: [
-            {
-              type: "heading",
-              heading: localize(
-                "ui.panel.page-demo.config.sections.titles.climate"
-              ),
-              icon: "mdi:thermometer",
-            },
             {
               type: "tile",
               entity: "sun.sun",
@@ -228,38 +181,16 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
               state_content: ["preset_mode", "current_temperature"],
             },
           ],
+          title: "🌤️ Climate",
         },
         {
           type: "grid",
           cards: [
-            {
-              type: "heading",
-              heading: localize(
-                "ui.panel.page-demo.config.sections.titles.study"
-              ),
-              icon: "mdi:desk-lamp",
-              badges: [
-                {
-                  type: "entity",
-                  entity: "switch.in_meeting",
-                  state: "on",
-                  state_content: "name",
-                  visibility: [
-                    {
-                      condition: "state",
-                      state: "on",
-                      entity: "switch.in_meeting",
-                    },
-                  ],
-                },
-              ],
-            },
             {
               type: "tile",
               entity: "cover.study_shutter",
               name: "Shutter",
             },
-
             {
               type: "tile",
               entity: "light.study_spotlights",
@@ -268,6 +199,7 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
             {
               type: "tile",
               entity: "media_player.study_nest_hub",
+              name: "Nest Hub",
             },
             {
               type: "tile",
@@ -276,23 +208,12 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
               color: "brown",
               icon: "mdi:desk",
             },
-            {
-              type: "tile",
-              entity: "switch.in_meeting",
-              name: "Meeting mode",
-            },
           ],
+          title: "🧑‍💻 Study",
         },
         {
           type: "grid",
           cards: [
-            {
-              type: "heading",
-              heading: localize(
-                "ui.panel.page-demo.config.sections.titles.outdoor"
-              ),
-              icon: "mdi:tree",
-            },
             {
               type: "tile",
               entity: "light.outdoor_light",
@@ -322,17 +243,11 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
               name: "Illuminance",
             },
           ],
+          title: "🌳 Outdoor",
         },
         {
           type: "grid",
           cards: [
-            {
-              type: "heading",
-              heading: localize(
-                "ui.panel.page-demo.config.sections.titles.updates"
-              ),
-              icon: "mdi:update",
-            },
             {
               type: "tile",
               entity: "automation.home_assistant_auto_update",
@@ -358,6 +273,7 @@ export const demoLovelaceSections: DemoConfig["lovelace"] = (localize) => ({
               icon: "mdi:home-assistant",
             },
           ],
+          title: "🎉 Updates",
         },
       ],
     },

demo/src/configs/teachingbirds/entities.ts

@@ -1,5 +1,5 @@
 import { convertEntities } from "../../../../src/fake_data/entity";
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
   convertEntities({

demo/src/configs/teachingbirds/index.ts

@@ -1,4 +1,4 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 import { demoEntitiesTeachingbirds } from "./entities";
 import { demoLovelaceTeachingbirds } from "./lovelace";
 import { demoThemeTeachingbirds } from "./theme";

demo/src/configs/teachingbirds/lovelace.ts

@@ -1,4 +1,4 @@
-import type { DemoConfig } from "../types";
+import { DemoConfig } from "../types";
 
 export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
   title: "Home",

demo/src/configs/types.ts

@@ -1,7 +1,7 @@
-import type { TemplateResult } from "lit";
+import { TemplateResult } from "lit";
-import type { LocalizeFunc } from "../../../src/common/translations/localize";
+import { LocalizeFunc } from "../../../src/common/translations/localize";
-import type { LovelaceConfig } from "../../../src/data/lovelace/config/types";
+import { LovelaceConfig } from "../../../src/data/lovelace/config/types";
-import type { Entity } from "../../../src/fake_data/entity";
+import { Entity } from "../../../src/fake_data/entity";
 
 export interface DemoConfig {
   index?: number;

demo/src/custom-cards/cast-demo-row.ts

@@ -1,15 +1,14 @@
 import { mdiTelevision } from "@mdi/js";
-import type { CSSResultGroup } from "lit";
+import { css, CSSResultGroup, html, LitElement, nothing } from "lit";
-import { css, html, LitElement, nothing } from "lit";
 import { customElement, state } from "lit/decorators";
-import type { CastManager } from "../../../src/cast/cast_manager";
+import { CastManager } from "../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../src/cast/receiver_messages";
 import "../../../src/components/ha-icon";
-import type {
+import {
   CastConfig,
   LovelaceRow,
 } from "../../../src/panels/lovelace/entity-rows/types";
-import type { HomeAssistant } from "../../../src/types";
+import { HomeAssistant } from "../../../src/types";
 
 @customElement("cast-demo-row")
 class CastDemoRow extends LitElement implements LovelaceRow {

demo/src/custom-cards/ha-demo-card.ts

@@ -1,21 +1,17 @@
-import type { CSSResultGroup } from "lit";
+import "@material/mwc-button";
-import { css, html, LitElement, nothing } from "lit";
+import { css, CSSResultGroup, html, LitElement, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { until } from "lit/directives/until";
-import { fireEvent } from "../../../src/common/dom/fire_event";
 import "../../../src/components/ha-card";
-import "../../../src/components/ha-button";
 import "../../../src/components/ha-circular-progress";
-import type { LovelaceCardConfig } from "../../../src/data/lovelace/config/card";
+import { LovelaceCardConfig } from "../../../src/data/lovelace/config/card";
-import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
-import type {
+import { Lovelace, LovelaceCard } from "../../../src/panels/lovelace/types";
-  Lovelace,
-  LovelaceCard,
-} from "../../../src/panels/lovelace/types";
 import {
   demoConfigs,
   selectedDemoConfig,
   selectedDemoConfigIndex,
+  setDemoConfig,
 } from "../configs/demo-configs";
 
 @customElement("ha-demo-card")
@@ -68,9 +64,9 @@ export class HADemoCard extends LitElement implements LovelaceCard {
                 )}
           </div>
 
-          <ha-button @click=${this._nextConfig} .disabled=${this._switching}>
+          <mwc-button @click=${this._nextConfig} .disabled=${this._switching}>
             ${this.hass.localize("ui.panel.page-demo.cards.demo.next_demo")}
-          </ha-button>
+          </mwc-button>
         </div>
         <div class="content">
           <p class="small-hidden">
@@ -91,9 +87,9 @@ export class HADemoCard extends LitElement implements LovelaceCard {
         </div>
         <div class="actions small-hidden">
           <a href="https://www.home-assistant.io" target="_blank">
-            <ha-button>
+            <mwc-button>
               ${this.hass.localize("ui.panel.page-demo.cards.demo.learn_more")}
-            </ha-button>
+            </mwc-button>
           </a>
         </div>
       </ha-card>
@@ -117,7 +113,13 @@ export class HADemoCard extends LitElement implements LovelaceCard {
 
   private async _updateConfig(index: number) {
     this._switching = true;
-    fireEvent(this, "set-demo-config" as any, { index });
+    try {
+      await setDemoConfig(this.hass, this.lovelace!, index);
+    } catch (err: any) {
+      alert("Failed to switch config :-(");
+    } finally {
+      this._switching = false;
+    }
   }
 
   static get styles(): CSSResultGroup {
@@ -147,7 +149,7 @@ export class HADemoCard extends LitElement implements LovelaceCard {
           height: 60px;
         }
 
-        .picker ha-button {
+        .picker mwc-button {
           margin-right: 8px;
         }
 

demo/src/entrypoint.ts

@@ -1,4 +1,4 @@
-import "./util/is_frontpage";
+import "../../src/resources/safari-14-attachshadow-patch";
 import "./ha-demo";
 
 import("../../src/resources/ha-style");

demo/src/ha-demo.ts

@@ -3,12 +3,13 @@ import "../../src/resources/compatibility";
 import { customElement } from "lit/decorators";
 import { isNavigationClick } from "../../src/common/dom/is-navigation-click";
 import { navigate } from "../../src/common/navigate";
-import type { MockHomeAssistant } from "../../src/fake_data/provide_hass";
+import {
-import { provideHass } from "../../src/fake_data/provide_hass";
+  MockHomeAssistant,
+  provideHass,
+} from "../../src/fake_data/provide_hass";
 import { HomeAssistantAppEl } from "../../src/layouts/home-assistant";
-import type { HomeAssistant } from "../../src/types";
+import { HomeAssistant } from "../../src/types";
 import { selectedDemoConfig } from "./configs/demo-configs";
-import { mockAreaRegistry } from "./stubs/area_registry";
 import { mockAuth } from "./stubs/auth";
 import { mockConfigEntries } from "./stubs/config_entries";
 import { mockEnergy } from "./stubs/energy";
@@ -22,10 +23,10 @@ import { mockLovelace } from "./stubs/lovelace";
 import { mockMediaPlayer } from "./stubs/media_player";
 import { mockPersistentNotification } from "./stubs/persistent_notification";
 import { mockRecorder } from "./stubs/recorder";
+import { mockTodo } from "./stubs/todo";
 import { mockSensor } from "./stubs/sensor";
 import { mockSystemLog } from "./stubs/system_log";
 import { mockTemplate } from "./stubs/template";
-import { mockTodo } from "./stubs/todo";
 import { mockTranslations } from "./stubs/translations";
 
 @customElement("ha-demo")
@@ -61,7 +62,6 @@ export class HaDemo extends HomeAssistantAppEl {
     mockEnergy(hass);
     mockPersistentNotification(hass);
     mockConfigEntries(hass);
-    mockAreaRegistry(hass);
     mockEntityRegistry(hass, [
       {
         config_entry_id: "co2signal",
@@ -80,8 +80,6 @@ export class HaDemo extends HomeAssistantAppEl {
         has_entity_name: false,
         unique_id: "co2_intensity",
         options: null,
-        created_at: 0,
-        modified_at: 0,
       },
       {
         config_entry_id: "co2signal",
@@ -100,8 +98,6 @@ export class HaDemo extends HomeAssistantAppEl {
         has_entity_name: false,
         unique_id: "grid_fossil_fuel_percentage",
         options: null,
-        created_at: 0,
-        modified_at: 0,
       },
     ]);
 

demo/src/html/index.html.template

@@ -63,47 +63,46 @@
         align-items: center;
       }
       #ha-launch-screen svg {
-        width: 112px;
+        width: 170px;
         flex-shrink: 0;
       }
-      #ha-launch-screen .ha-launch-screen-spacer-top {
+      #ha-launch-screen .ha-launch-screen-spacer {
         flex: 1;
-        margin-top: calc( 2 * max(env(safe-area-inset-bottom), 48px) + 46px );
-        padding-top: 48px;
-      }
-      #ha-launch-screen .ha-launch-screen-spacer-bottom {
-        flex: 1;
-        padding-top: 48px;
-      }
-      .ohf-logo {
-        margin: max(env(safe-area-inset-bottom), 48px) 0;
-        display: flex;
-        flex-direction: column;
-        align-items: center;
-        opacity: .66;
-      }
-      @media (prefers-color-scheme: dark) {
-        .ohf-logo {
-          filter: invert(1);
-        }
       }
     </style>
   </head>
   <body>
     <div id="ha-launch-screen">
-      <div class="ha-launch-screen-spacer-top"></div>
+      <div class="ha-launch-screen-spacer"></div>
       <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 240 240">
         <path fill="#18BCF2" d="M240 224.762a15 15 0 0 1-15 15H15a15 15 0 0 1-15-15v-90c0-8.25 4.77-19.769 10.61-25.609l98.78-98.7805c5.83-5.83 15.38-5.83 21.21 0l98.79 98.7895c5.83 5.83 10.61 17.36 10.61 25.61v90-.01Z"/>
         <path fill="#F2F4F9" d="m107.27 239.762-40.63-40.63c-2.09.72-4.32 1.13-6.64 1.13-11.3 0-20.5-9.2-20.5-20.5s9.2-20.5 20.5-20.5 20.5 9.2 20.5 20.5c0 2.33-.41 4.56-1.13 6.65l31.63 31.63v-115.88c-6.8-3.3395-11.5-10.3195-11.5-18.3895 0-11.3 9.2-20.5 20.5-20.5s20.5 9.2 20.5 20.5c0 8.07-4.7 15.05-11.5 18.3895v81.27l31.46-31.46c-.62-1.96-.96-4.04-.96-6.2 0-11.3 9.2-20.5 20.5-20.5s20.5 9.2 20.5 20.5-9.2 20.5-20.5 20.5c-2.5 0-4.88-.47-7.09-1.29L129 208.892v30.88z"/>
       </svg>
-      <div id="ha-launch-screen-info-box" class="ha-launch-screen-spacer-bottom"></div>
+      <div id="ha-launch-screen-info-box" class="ha-launch-screen-spacer"></div>
-      <div class="ohf-logo">
-        <img src="/static/images/ohf-badge.svg" alt="Home Assistant is a project by the Open Home Foundation" height="46">
-      </div>
     </div>
     <ha-demo></ha-demo>
     <%= renderTemplate("../../../src/html/_js_base.html.template") %>
     <%= renderTemplate("../../../src/html/_preload_roboto.html.template") %>
-    <%= renderTemplate("../../../src/html/_script_loader.html.template") %>
+    <script>
+      // Safari 12 and below does not have a compliant ES2015 implementation of template literals, so we ship ES5
+      if (!isS11_12) {
+        <% for (const entry of latestEntryJS) { %>
+          import("<%= entry %>");
+        <% } %>
+        window.latestJS = true;
+      }
+    </script>
+    <%= renderTemplate("../../../src/html/_script_load_es5.html.template") %>
+    <script>
+      var _gaq = [["_setAccount", "UA-57927901-5"], ["_trackPageview"]];
+      (function (d, t) {
+        var g = d.createElement(t),
+          s = d.getElementsByTagName(t)[0];
+        g.src =
+          ("https:" == location.protocol ? "//ssl" : "//www") +
+          ".google-analytics.com/ga.js";
+        s.parentNode.insertBefore(g, s);
+      })(document, "script");
+    </script>
   </body>
 </html>

demo/src/stubs/area_registry.ts

@@ -1,4 +1,4 @@
-import type { AreaRegistryEntry } from "../../../src/data/area_registry";
+import { AreaRegistryEntry } from "../../../src/data/area_registry";
 import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockAreaRegistry = (

demo/src/stubs/auth.ts

@@ -1,4 +1,4 @@
-import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockAuth = (hass: MockHomeAssistant) => {
   hass.mockWS("config/auth/list", () => []);

demo/src/stubs/config.ts

@@ -1,9 +0,0 @@
-import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
-
-export const mockConfig = (hass: MockHomeAssistant) => {
-  hass.mockWS("validate_config", () => ({
-    actions: { valid: true },
-    conditions: { valid: true },
-    triggers: { valid: true },
-  }));
-};

demo/src/stubs/config_entries.ts

@@ -1,4 +1,4 @@
-import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockConfigEntries = (hass: MockHomeAssistant) => {
   hass.mockWS("config_entries/get", () => ({

demo/src/stubs/device_registry.ts

@@ -1,4 +1,4 @@
-import type { DeviceRegistryEntry } from "../../../src/data/device_registry";
+import { DeviceRegistryEntry } from "../../../src/data/device_registry";
 import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockDeviceRegistry = (

demo/src/stubs/energy.ts

@@ -1,11 +1,11 @@
-import { format, startOfToday, startOfTomorrow } from "date-fns";
+import { format, startOfToday, startOfTomorrow } from "date-fns/esm";
-import type {
+import {
   EnergyInfo,
   EnergyPreferences,
   EnergySolarForecasts,
   FossilEnergyConsumption,
 } from "../../../src/data/energy";
-import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockEnergy = (hass: MockHomeAssistant) => {
   hass.mockWS(

demo/src/stubs/entities.ts

@@ -1,55 +1,5 @@
 import { convertEntities } from "../../../src/fake_data/entity";
 
-export const mapEntities = () =>
-  convertEntities({
-    "zone.home": {
-      entity_id: "zone.home",
-      state: "zoning",
-      attributes: {
-        hidden: true,
-        latitude: 52.3631339,
-        longitude: 4.8903147,
-        radius: 200,
-        friendly_name: "Home",
-        icon: "hademo:home",
-      },
-    },
-    "zone.uva": {
-      entity_id: "zone.buckhead",
-      state: "zoning",
-      attributes: {
-        hidden: true,
-        radius: 400,
-        friendly_name: "UvA",
-        icon: "hademo:school",
-        latitude: 52.3558182,
-        longitude: 4.9535376,
-      },
-    },
-    "person.arsaboo": {
-      entity_id: "person.arsaboo",
-      state: "not_home",
-      attributes: {
-        radius: 50,
-        friendly_name: "Arsaboo",
-        latitude: 52.3579946,
-        longitude: 4.8664597,
-        entity_picture: "/assets/arsaboo/images/arsaboo.jpg",
-      },
-    },
-    "person.melody": {
-      entity_id: "person.melody",
-      state: "not_home",
-      attributes: {
-        radius: 50,
-        friendly_name: "Melody",
-        latitude: 52.3408927,
-        longitude: 4.8711073,
-        entity_picture: "/assets/arsaboo/images/melody.jpg",
-      },
-    },
-  });
-
 export const energyEntities = () =>
   convertEntities({
     "sensor.grid_fossil_fuel_percentage": {