Colors

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

.eslintrc.json

@@ -1,11 +1,11 @@
 {
   "extends": [
+    "airbnb-base",
     "airbnb-typescript/base",
     "plugin:@typescript-eslint/recommended",
     "plugin:wc/recommended",
-    "plugin:lit/recommended",
-    "prettier",
-    "prettier/@typescript-eslint"
+    "plugin:lit/all",
+    "prettier"
   ],
   "parser": "@typescript-eslint/parser",
   "parserOptions": {
@@ -29,64 +29,91 @@
     "__BUILD__": false,
     "__VERSION__": false,
     "__STATIC_PATH__": false,
-    "Polymer": true,
-    "webkitSpeechRecognition": false,
-    "ResizeObserver": false
+    "__SUPERVISOR__": false,
+    "Polymer": true
   },
   "env": {
     "browser": true,
     "es6": true
   },
   "rules": {
-    "class-methods-use-this": 0,
-    "new-cap": 0,
-    "prefer-template": 0,
-    "object-shorthand": 0,
-    "func-names": 0,
-    "prefer-arrow-callback": 0,
-    "no-underscore-dangle": 0,
-    "strict": 0,
-    "prefer-spread": 0,
-    "no-plusplus": 0,
-    "no-bitwise": 2,
-    "comma-dangle": 0,
-    "vars-on-top": 0,
-    "no-continue": 0,
-    "no-param-reassign": 0,
-    "no-multi-assign": 0,
-    "no-console": 2,
-    "radix": 0,
-    "no-alert": 0,
-    "no-return-await": 0,
-    "no-nested-ternary": 0,
-    "prefer-destructuring": 0,
+    "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": 0,
-    "import/order": 0,
-    "import/prefer-default-export": 0,
-    "import/no-unresolved": 0,
-    "import/no-cycle": 0,
+    "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": [
-      2,
+      "error",
       "ignorePackages",
       { "ts": "never", "js": "never" }
     ],
     "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
-    "object-curly-newline": 0,
-    "default-case": 0,
-    "wc/no-self-class": 0,
-    "no-shadow": 0,
-    "@typescript-eslint/camelcase": 0,
-    "@typescript-eslint/ban-ts-comment": 0,
-    "@typescript-eslint/no-use-before-define": 0,
-    "@typescript-eslint/no-non-null-assertion": 0,
-    "@typescript-eslint/no-explicit-any": 0,
-    "@typescript-eslint/no-unused-vars": 0,
-    "@typescript-eslint/explicit-function-return-type": 0,
-    "@typescript-eslint/explicit-module-boundary-types": 0,
+    "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"],
-    "lit/attribute-value-entities": 0
+    "@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"
   },
-  "plugins": ["disable", "import", "lit", "prettier", "@typescript-eslint"],
+  "plugins": ["disable", "unused-imports"],
   "processor": "disable/disable"
 }

.github/workflows/ci.yaml

@@ -10,81 +10,64 @@ on:
       - dev
       - master
 
+env:
+  NODE_VERSION: 14
+  NODE_OPTIONS: --max_old_space_size=6144
+
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:
           CI: true
       - name: Build resources
-        run: ./node_modules/.bin/gulp gen-icons-json build-translations gather-gallery-demos
+        run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data gather-gallery-pages
       - name: Run eslint
-        run: ./node_modules/.bin/eslint '{**/src,src}/**/*.{js,ts,html}' --ignore-path .gitignore
+        run: yarn run lint:eslint
       - name: Run tsc
-        run: ./node_modules/.bin/tsc
+        run: yarn run lint:types
+      - name: Run prettier
+        run: yarn run lint:prettier
+      - name: Check for duplicate dependencies
+        run: yarn dedupe --check
   test:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:
           CI: true
-      - name: Run Mocha
-        run: npm run mocha
+      - name: Build resources
+        run: ./node_modules/.bin/gulp build-translations build-locale-data
+      - name: Run Tests
+        run: yarn run test
   build:
     runs-on: ubuntu-latest
     needs: [lint, test]
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:
@@ -99,20 +82,11 @@ jobs:
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:

.github/workflows/demo.yaml

@@ -4,26 +4,22 @@ on:
   push:
     branches:
       - dev
+
+env:
+  NODE_VERSION: 14
+  NODE_OPTIONS: --max_old_space_size=6144
+
 jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Setting up Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v2
         with:
-          node-version: 12.x
-      - name: Get yarn cache path
-        id: yarn-cache-dir-path
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - name: Fetching Yarn cache
-        uses: actions/cache@v1
-        with:
-          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
       - name: Install dependencies
         run: yarn install
         env:

.github/workflows/netflify.yml

@@ -15,5 +15,5 @@ jobs:
       - name: Trigger Demo build
         run: curl -X POST -d {} https://api.netlify.com/build_hooks/${{ secrets.NETLIFY_DEMO_DEV_BUILD_HOOK }}
 
-      - name: Trigger Gallery build
-        run: curl -X POST -d {} https://api.netlify.com/build_hooks/${{ secrets.NETLIFY_GALLERY_DEV_BUILD_HOOK }}
+      - name: Trigger Design build
+        run: curl -X POST -d "NIGHTLY" https://api.netlify.com/build_hooks/${{ secrets.NETLIFY_GALLERY_DEV_BUILD_HOOK }}

.github/workflows/release.yaml

@@ -6,9 +6,9 @@ on:
       - published
 
 env:
-  WHEELS_TAG: 3.7-alpine3.11
-  PYTHON_VERSION: 3.7
-  NODE_VERSION: 12.1
+  PYTHON_VERSION: 3.8
+  NODE_VERSION: 14
+  NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
   release:
@@ -30,7 +30,15 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: ${{ env.NODE_VERSION }}
+          cache: yarn
 
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Download Translations
+        run: ./script/translations_download
+        env:
+          LOKALISE_TOKEN: ${{ secrets.LOKALISE_TOKEN }}
       - name: Build and release package
         run: |
           python3 -m pip install twine
@@ -64,6 +72,8 @@ jobs:
     strategy:
       matrix:
         arch: ["aarch64", "armhf", "armv7", "amd64", "i386"]
+        tag:
+          - "3.9-alpine3.14"
     steps:
       - name: Download requirements.txt
         uses: actions/download-artifact@v2
@@ -73,7 +83,7 @@ jobs:
       - name: Build wheels
         uses: home-assistant/wheels@master
         with:
-          tag: ${{ env.WHEELS_TAG }}
+          tag: ${{ matrix.tag }}
           arch: ${{ matrix.arch }}
           wheels-host: ${{ secrets.WHEELS_HOST }}
           wheels-key: ${{ secrets.WHEELS_KEY }}

.github/workflows/translations.yaml

@@ -1,8 +1,6 @@
 name: Translations
 
 on:
-  schedule:
-    - cron: "30 0 * * *"
   push:
     branches:
       - dev
@@ -10,7 +8,7 @@ on:
       - src/translations/en.json
 
 env:
-  NODE_VERSION: 12
+  NODE_VERSION: 14
 
 jobs:
   upload:
@@ -20,46 +18,8 @@ jobs:
       - name: Checkout the repository
         uses: actions/checkout@v2
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v2
-        with:
-          node-version: ${{ env.NODE_VERSION }}
-
       - name: Upload Translations
         run: |
           export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
 
           ./script/translations_upload_base
-
-  download:
-    name: Download
-    needs: upload
-    if: github.event_name == 'schedule'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v2
-        with:
-          node-version: ${{ env.NODE_VERSION }}
-
-      - name: Download Translations
-        run: |
-          export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
-
-          npm install
-          ./script/translations_download
-
-      - name: Initialize git
-        uses: home-assistant/actions/helpers/git-init@master
-        with:
-          name: GitHub Action
-          email: github-action@users.noreply.github.com
-
-      - name: Update translation
-        run: |
-          git add translations
-          git commit -am "Translation update"
-          git push

.gitignore

@@ -1,11 +1,23 @@
-build
-build-translations/*
-node_modules/*
-npm-debug.log
 .DS_Store
-hass_frontend/*
 .reify-cache
 
+# build
+build
+hass_frontend/*
+dist
+
+# yarn
+.yarn/*
+!.yarn/patches
+!.yarn/releases
+!.yarn/plugins
+!.yarn/sdks
+!.yarn/versions
+.pnp.*
+node_modules/*
+yarn-error.log
+npm-debug.log
+
 # Python stuff
 *.py[cod]
 *.egg
@@ -14,11 +26,8 @@ hass_frontend/*
 # venv stuff
 pyvenv.cfg
 pip-selfcheck.json
-venv
+venv/*
 .venv
-lib
-bin
-dist
 
 # vscode
 .vscode/*
@@ -31,9 +40,8 @@ src/cast/dev_const.ts
 
 # Secrets
 .lokalise_token
-yarn-error.log
 
-#asdf
+# asdf
 .tool-versions
 
 # Home Assistant config

.nvmrc

@@ -1 +1 @@
-12.1
+14

.prettierignore

@@ -1,5 +1,4 @@
 build
-build-translations/*
 translations/*
 node_modules/*
 hass_frontend/*

.yarn/patches/@lit-labs/virtualizer/event-target-shim.patch

@@ -0,0 +1,29 @@
+diff --git a/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js b/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js
+index d92179f7fd5315203f870a6963e871dc8ddf6c0c..362e284121b97e0fba0925225777aebc32e26b8d 100644
+--- a/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js
++++ b/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js
+@@ -1,14 +1,15 @@
+-let _ET, ET;
++let _ET;
++let ET;
+ export default async function EventTarget() {
+-    return ET || init();
++  return ET || init();
+ }
+ async function init() {
+-    _ET = window.EventTarget;
+-    try {
+-        new _ET();
+-    }
+-    catch (_a) {
+-        _ET = (await import('event-target-shim')).EventTarget;
+-    }
+-    return (ET = _ET);
++  _ET = window.EventTarget;
++  try {
++    new _ET();
++  } catch (_a) {
++    _ET = (await import("event-target-shim")).default.EventTarget;
++  }
++  return (ET = _ET);
+ }

.yarn/patches/@material/mwc-icon-button/remove-icon.patch

@@ -0,0 +1,12 @@
+diff --git a/mwc-icon-button-base.js b/mwc-icon-button-base.js
+index 45cdaab93ccc0a6daaaaabc01266dcdc32e46bfd..b3ea5b541597308d85f86ce6c23fd00785fda835 100644
+--- a/mwc-icon-button-base.js
++++ b/mwc-icon-button-base.js
+@@ -63,7 +63,6 @@ export class IconButtonBase extends LitElement {
+         @touchend="${this.handleRippleDeactivate}"
+         @touchcancel="${this.handleRippleDeactivate}"
+     >${this.renderRipple()}
+-    <i class="material-icons">${this.icon}</i>
+     <span
+       ><slot></slot
+     ></span>

.yarn/patches/@polymer/polymer/pr-5569.patch

@@ -0,0 +1,34 @@
+diff --git a/lib/legacy/class.js b/lib/legacy/class.js
+index aee2511be1cd9bf900ee552bc98190c1631c57c0..f2f499d68bf52034cac9c28307c99e8ce6b8417d 100644
+--- a/lib/legacy/class.js
++++ b/lib/legacy/class.js
+@@ -304,17 +304,23 @@ function GenerateClassFromInfo(info, Base, behaviors) {
+       // only proceed if the generated class' prototype has not been registered.
+       const generatedProto = PolymerGenerated.prototype;
+       if (!generatedProto.hasOwnProperty(JSCompiler_renameProperty('__hasRegisterFinished', generatedProto))) {
+-        generatedProto.__hasRegisterFinished = true;
++        // make sure legacy lifecycle is called on the *element*'s prototype
++        // and not the generated class prototype; if the element has been
++        // extended, these are *not* the same.
++        const proto = Object.getPrototypeOf(this);
++        // Only set flag when generated prototype itself is registered,
++        // as this element may be extended from, and needs to run `registered`
++        // on all behaviors on the subclass as well.
++        if (proto === generatedProto) {
++          generatedProto.__hasRegisterFinished = true;
++        }
+         // ensure superclass is registered first.
+         super._registered();
+         // copy properties onto the generated class lazily if we're optimizing,
+-        if (legacyOptimizations) {
++        if (legacyOptimizations && !Object.hasOwnProperty(generatedProto, '__hasCopiedProperties')) {
++          generatedProto.__hasCopiedProperties = true;
+           copyPropertiesToProto(generatedProto);
+         }
+-        // make sure legacy lifecycle is called on the *element*'s prototype
+-        // and not the generated class prototype; if the element has been
+-        // extended, these are *not* the same.
+-        const proto = Object.getPrototypeOf(this);
+         let list = lifecycle.beforeRegister;
+         if (list) {
+           for (let i=0; i < list.length; i++) {

.yarnrc.yml

@@ -0,0 +1,9 @@
+nodeLinker: node-modules
+
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-typescript.cjs
+    spec: "@yarnpkg/plugin-typescript"
+  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
+    spec: "@yarnpkg/plugin-interactive-tools"
+
+yarnPath: .yarn/releases/yarn-3.0.2.cjs

build-scripts/babel-plugins/inline-constants-plugin.js

@@ -0,0 +1,170 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+const path = require("path");
+
+// Currently only supports CommonJS modules, as require is synchronous. `import` would need babel running asynchronous.
+module.exports = function inlineConstants(babel, options, cwd) {
+  const t = babel.types;
+
+  if (!Array.isArray(options.modules)) {
+    throw new TypeError(
+      "babel-plugin-inline-constants: expected a `modules` array to be passed"
+    );
+  }
+
+  if (options.resolveExtensions && !Array.isArray(options.resolveExtensions)) {
+    throw new TypeError(
+      "babel-plugin-inline-constants: expected `resolveExtensions` to be an array"
+    );
+  }
+
+  const ignoreModuleNotFound = options.ignoreModuleNotFound;
+  const resolveExtensions = options.resolveExtensions;
+
+  const hasRelativeModules = options.modules.some(
+    (module) => module.startsWith(".") || module.startsWith("/")
+  );
+
+  const modules = Object.fromEntries(
+    options.modules.map((module) => {
+      const absolute = module.startsWith(".")
+        ? require.resolve(module, { paths: [cwd] })
+        : module;
+      // eslint-disable-next-line import/no-dynamic-require
+      return [absolute, require(absolute)];
+    })
+  );
+
+  const toLiteral = (value) => {
+    if (typeof value === "string") {
+      return t.stringLiteral(value);
+    }
+
+    if (typeof value === "number") {
+      return t.numericLiteral(value);
+    }
+
+    if (typeof value === "boolean") {
+      return t.booleanLiteral(value);
+    }
+
+    if (value === null) {
+      return t.nullLiteral();
+    }
+
+    throw new Error(
+      "babel-plugin-inline-constants: cannot handle non-literal `" + value + "`"
+    );
+  };
+
+  const resolveAbsolute = (value, state, resolveExtensionIndex) => {
+    if (!state.filename) {
+      throw new TypeError(
+        "babel-plugin-inline-constants: expected a `filename` to be set for files"
+      );
+    }
+
+    if (resolveExtensions && resolveExtensionIndex !== undefined) {
+      value += resolveExtensions[resolveExtensionIndex];
+    }
+
+    try {
+      return require.resolve(value, { paths: [path.dirname(state.filename)] });
+    } catch (error) {
+      if (
+        error.code === "MODULE_NOT_FOUND" &&
+        resolveExtensions &&
+        (resolveExtensionIndex === undefined ||
+          resolveExtensionIndex < resolveExtensions.length - 1)
+      ) {
+        const resolveExtensionIdx = (resolveExtensionIndex || -1) + 1;
+        return resolveAbsolute(value, state, resolveExtensionIdx);
+      }
+
+      if (error.code === "MODULE_NOT_FOUND" && ignoreModuleNotFound) {
+        return undefined;
+      }
+      throw error;
+    }
+  };
+
+  const importDeclaration = (p, state) => {
+    if (p.node.type !== "ImportDeclaration") {
+      return;
+    }
+    const absolute =
+      hasRelativeModules && p.node.source.value.startsWith(".")
+        ? resolveAbsolute(p.node.source.value, state)
+        : p.node.source.value;
+
+    if (!absolute || !(absolute in modules)) {
+      return;
+    }
+
+    const module = modules[absolute];
+
+    for (const specifier of p.node.specifiers) {
+      if (
+        specifier.type === "ImportDefaultSpecifier" &&
+        specifier.local &&
+        specifier.local.type === "Identifier"
+      ) {
+        if (!("default" in module)) {
+          throw new Error(
+            "babel-plugin-inline-constants: cannot access default export from `" +
+              p.node.source.value +
+              "`"
+          );
+        }
+
+        const variableValue = toLiteral(module.default);
+        const variable = t.variableDeclarator(
+          t.identifier(specifier.local.name),
+          variableValue
+        );
+
+        p.insertBefore({
+          type: "VariableDeclaration",
+          kind: "const",
+          declarations: [variable],
+        });
+      } else if (
+        specifier.type === "ImportSpecifier" &&
+        specifier.imported &&
+        specifier.imported.type === "Identifier" &&
+        specifier.local &&
+        specifier.local.type === "Identifier"
+      ) {
+        if (!(specifier.imported.name in module)) {
+          throw new Error(
+            "babel-plugin-inline-constants: cannot access `" +
+              specifier.imported.name +
+              "` from `" +
+              p.node.source.value +
+              "`"
+          );
+        }
+
+        const variableValue = toLiteral(module[specifier.imported.name]);
+        const variable = t.variableDeclarator(
+          t.identifier(specifier.local.name),
+          variableValue
+        );
+
+        p.insertBefore({
+          type: "VariableDeclaration",
+          kind: "const",
+          declarations: [variable],
+        });
+      } else {
+        throw new Error("Cannot handle specifier `" + specifier.type + "`");
+      }
+    }
+    p.remove();
+  };
+
+  return {
+    visitor: {
+      ImportDeclaration: importDeclaration,
+    },
+  };
+};

build-scripts/bundle.js

@@ -1,11 +1,10 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 const env = require("./env.js");
 const paths = require("./paths.js");
 
 // Files from NPM Packages that should not be imported
 module.exports.ignorePackages = ({ latestBuild }) => [
-  // Bloats bundle and it's not used.
-  path.resolve(require.resolve("moment"), "../locale"),
   // Part of yaml.js and only used for !!js functions that we don't use
   require.resolve("esprima"),
 ];
@@ -19,7 +18,8 @@ module.exports.emptyPackages = ({ latestBuild }) =>
     require.resolve("@polymer/paper-styles/default-theme.js"),
     // Loads stuff from a CDN
     require.resolve("@polymer/font-roboto/roboto.js"),
-    require.resolve("@vaadin/vaadin-material-styles/font-roboto.js"),
+    require.resolve("@vaadin/vaadin-material-styles/typography.js"),
+    require.resolve("@vaadin/vaadin-material-styles/font-icons.js"),
     // Compatibility not needed for latest builds
     latestBuild &&
       // wrapped in require.resolve so it blows up if file no longer exists
@@ -35,6 +35,7 @@ module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
   __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
   __VERSION__: JSON.stringify(env.version()),
   __DEMO__: false,
+  __SUPERVISOR__: false,
   __BACKWARDS_COMPAT__: false,
   __STATIC_PATH__: "/static/",
   "process.env.NODE_ENV": JSON.stringify(
@@ -51,17 +52,29 @@ module.exports.terserOptions = (latestBuild) => ({
 
 module.exports.babelOptions = ({ latestBuild }) => ({
   babelrc: false,
+  compact: false,
   presets: [
     !latestBuild && [
-      require("@babel/preset-env").default,
+      "@babel/preset-env",
       {
         useBuiltIns: "entry",
-        corejs: "3.6",
+        corejs: "3.15",
+        bugfixes: true,
       },
     ],
-    require("@babel/preset-typescript").default,
+    "@babel/preset-typescript",
   ].filter(Boolean),
   plugins: [
+    [
+      path.resolve(
+        paths.polymer_dir,
+        "build-scripts/babel-plugins/inline-constants-plugin.js"
+      ),
+      {
+        modules: ["@mdi/js"],
+        ignoreModuleNotFound: true,
+      },
+    ],
     // Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
     !latestBuild && [
       "@babel/plugin-proposal-object-rest-spread",
@@ -70,25 +83,21 @@ module.exports.babelOptions = ({ latestBuild }) => ({
     // Only support the syntax, Webpack will handle it.
     "@babel/plugin-syntax-import-meta",
     "@babel/plugin-syntax-dynamic-import",
+    "@babel/plugin-syntax-top-level-await",
     "@babel/plugin-proposal-optional-chaining",
     "@babel/plugin-proposal-nullish-coalescing-operator",
-    [
-      require("@babel/plugin-proposal-decorators").default,
-      { decoratorsBeforeExport: true },
-    ],
-    [
-      require("@babel/plugin-proposal-class-properties").default,
-      { loose: true },
-    ],
+    ["@babel/plugin-proposal-decorators", { decoratorsBeforeExport: true }],
+    ["@babel/plugin-proposal-private-methods", { loose: true }],
+    ["@babel/plugin-proposal-private-property-in-object", { loose: true }],
+    ["@babel/plugin-proposal-class-properties", { loose: true }],
   ].filter(Boolean),
+  exclude: [
+    // \\ for Windows, / for Mac OS and Linux
+    /node_modules[\\/]core-js/,
+    /node_modules[\\/]webpack[\\/]buildin/,
+  ],
 });
 
-// Are already ES5, cause warnings when babelified.
-module.exports.babelExclude = () => [
-  require.resolve("@mdi/js/mdi.js"),
-  require.resolve("hls.js"),
-];
-
 const outputPath = (outputRoot, latestBuild) =>
   path.resolve(outputRoot, latestBuild ? "frontend_latest" : "frontend_es5");
 
@@ -156,6 +165,7 @@ module.exports.config = {
   cast({ isProdBuild, latestBuild }) {
     const entry = {
       launcher: path.resolve(paths.cast_dir, "src/launcher/entrypoint.ts"),
+      media: path.resolve(paths.cast_dir, "src/media/entrypoint.ts"),
     };
 
     if (latestBuild) {
@@ -186,6 +196,9 @@ module.exports.config = {
       publicPath: publicPath(latestBuild, paths.hassio_publicPath),
       isProdBuild,
       latestBuild,
+      defineOverlay: {
+        __SUPERVISOR__: true,
+      },
     };
   },
 
@@ -198,6 +211,9 @@ module.exports.config = {
       publicPath: publicPath(latestBuild),
       isProdBuild,
       latestBuild,
+      defineOverlay: {
+        __DEMO__: true,
+      },
     };
   },
 };

build-scripts/env.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const fs = require("fs");
 const path = require("path");
 const paths = require("./paths.js");

build-scripts/gulp/app.js

@@ -5,6 +5,7 @@ const env = require("../env");
 
 require("./clean.js");
 require("./translations.js");
+require("./locale-data.js");
 require("./gen-icons-json.js");
 require("./gather-static.js");
 require("./compress.js");
@@ -26,7 +27,8 @@ gulp.task(
       "gen-icons-json",
       "gen-pages-dev",
       "gen-index-app-dev",
-      "build-translations"
+      "build-translations",
+      "build-locale-data"
     ),
     "copy-static-app",
     env.useWDS()
@@ -44,11 +46,11 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-app",
     env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
-    ...// Don't compress running tests
-    (env.isTest() ? [] : ["compress-app"]),
+    // Don't compress running tests
+    ...(env.isTest() ? [] : ["compress-app"]),
     gulp.parallel(
       "gen-pages-prod",
       "gen-index-app-prod",

build-scripts/gulp/cast.js

@@ -18,7 +18,7 @@ gulp.task(
     },
     "clean-cast",
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
     "gen-index-cast-dev",
     env.useRollup() ? "rollup-dev-server-cast" : "webpack-dev-server-cast"
@@ -33,7 +33,7 @@ gulp.task(
     },
     "clean-cast",
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
     env.useRollup() ? "rollup-prod-cast" : "webpack-prod-cast",
     "gen-index-cast-prod"

build-scripts/gulp/clean.js

@@ -5,32 +5,32 @@ require("./translations");
 
 gulp.task(
   "clean",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.app_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.app_output_root, paths.build_dir])
+  )
 );
 
 gulp.task(
   "clean-demo",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.demo_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.demo_output_root, paths.build_dir])
+  )
 );
 
 gulp.task(
   "clean-cast",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.cast_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.cast_output_root, paths.build_dir])
+  )
 );
 
-gulp.task("clean-hassio", function cleanOutputAndBuildDir() {
-  return del([paths.hassio_output_root, paths.build_dir]);
-});
+gulp.task("clean-hassio", () =>
+  del([paths.hassio_output_root, paths.build_dir])
+);
 
 gulp.task(
   "clean-gallery",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([paths.gallery_output_root, paths.build_dir]);
-  })
+  gulp.parallel("clean-translations", () =>
+    del([paths.gallery_output_root, paths.gallery_build, paths.build_dir])
+  )
 );

build-scripts/gulp/demo.js

@@ -20,7 +20,12 @@ gulp.task(
     },
     "clean-demo",
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "gen-index-demo-dev", "build-translations"),
+    gulp.parallel(
+      "gen-icons-json",
+      "gen-index-demo-dev",
+      "build-translations",
+      "build-locale-data"
+    ),
     "copy-static-demo",
     env.useRollup() ? "rollup-dev-server-demo" : "webpack-dev-server-demo"
   )
@@ -35,7 +40,7 @@ gulp.task(
     "clean-demo",
     // Cast needs to be backwards compatible and older HA has no translations
     "translations-enable-merge-backend",
-    gulp.parallel("gen-icons-json", "build-translations"),
+    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-demo",
     env.useRollup() ? "rollup-prod-demo" : "webpack-prod-demo",
     "gen-index-demo-prod"

build-scripts/gulp/entry-html.js

@@ -154,6 +154,15 @@ gulp.task("gen-index-cast-dev", (done) => {
     contentReceiver
   );
 
+  const contentMedia = renderCastTemplate("media", {
+    latestMediaJS: "/frontend_latest/media.js",
+    es5MediaJS: "/frontend_es5/media.js",
+  });
+  fs.outputFileSync(
+    path.resolve(paths.cast_output_root, "media.html"),
+    contentMedia
+  );
+
   const contentFAQ = renderCastTemplate("launcher-faq", {
     latestLauncherJS: "/frontend_latest/launcher.js",
     es5LauncherJS: "/frontend_es5/launcher.js",
@@ -192,6 +201,15 @@ gulp.task("gen-index-cast-prod", (done) => {
     contentReceiver
   );
 
+  const contentMedia = renderCastTemplate("media", {
+    latestMediaJS: latestManifest["media.js"],
+    es5MediaJS: es5Manifest["media.js"],
+  });
+  fs.outputFileSync(
+    path.resolve(paths.cast_output_root, "media.html"),
+    contentMedia
+  );
+
   const contentFAQ = renderCastTemplate("launcher-faq", {
     latestLauncherJS: latestManifest["launcher.js"],
     es5LauncherJS: es5Manifest["launcher.js"],
@@ -302,15 +320,23 @@ gulp.task("gen-index-hassio-prod", async () => {
 
 function writeHassioEntrypoint(latestEntrypoint, es5Entrypoint) {
   fs.mkdirSync(paths.hassio_output_root, { recursive: true });
+  // Safari 12 and below does not have a compliant ES2015 implementation of template literals, so we ship ES5
   fs.writeFileSync(
     path.resolve(paths.hassio_output_root, "entrypoint.js"),
     `
-try {
-  new Function("import('${latestEntrypoint}')")();
-} catch (err) {
+function loadES5() {
   var el = document.createElement('script');
   el.src = '${es5Entrypoint}';
   document.body.appendChild(el);
+}
+if (/.*Version\\/(?:11|12)(?:\\.\\d+)*.*Safari\\//.test(navigator.userAgent)) {
+    loadES5();
+} else {
+  try {
+    new Function("import('${latestEntrypoint}')")();
+  } catch (err) {
+    loadES5();
+  }
 }
   `,
     { encoding: "utf-8" }

build-scripts/gulp/gallery.js

@@ -1,7 +1,11 @@
+/* eslint-disable */
 // Run demo develop mode
 const gulp = require("gulp");
 const fs = require("fs");
 const path = require("path");
+const marked = require("marked");
+const glob = require("glob");
+const yaml = require("js-yaml");
 
 const env = require("../env");
 const paths = require("../paths");
@@ -15,26 +19,129 @@ require("./service-worker.js");
 require("./entry-html.js");
 require("./rollup.js");
 
-gulp.task("gather-gallery-demos", async function gatherDemos() {
-  const files = await fs.promises.readdir(
-    path.resolve(paths.gallery_dir, "src/demos")
-  );
-
-  let content = "export const DEMOS = {\n";
-
-  for (const file of files) {
-    const demoId = path.basename(file, ".ts");
-    const demoPath = "../src/demos/" + demoId;
-    content += `  "${demoId}": () => import("${demoPath}"),\n`;
-  }
-
-  content += "};";
+gulp.task("gather-gallery-pages", async function gatherPages() {
+  const pageDir = path.resolve(paths.gallery_dir, "src/pages");
+  const files = glob.sync(path.resolve(pageDir, "**/*"));
 
   const galleryBuild = path.resolve(paths.gallery_dir, "build");
-
   fs.mkdirSync(galleryBuild, { recursive: true });
+
+  let content = "export const PAGES = {\n";
+
+  const processed = new Set();
+
+  for (const file of files) {
+    if (fs.lstatSync(file).isDirectory()) {
+      continue;
+    }
+    const pageId = file.substring(pageDir.length + 1, file.lastIndexOf("."));
+
+    if (processed.has(pageId)) {
+      continue;
+    }
+    processed.add(pageId);
+
+    const [category, name] = pageId.split("/", 2);
+
+    const demoFile = path.resolve(pageDir, `${pageId}.ts`);
+    const descriptionFile = path.resolve(pageDir, `${pageId}.markdown`);
+    const hasDemo = fs.existsSync(demoFile);
+    let hasDescription = fs.existsSync(descriptionFile);
+    let metadata = {};
+    if (hasDescription) {
+      let descriptionContent = fs.readFileSync(descriptionFile, "utf-8");
+
+      if (descriptionContent.startsWith("---")) {
+        const metadataEnd = descriptionContent.indexOf("---", 3);
+        metadata = yaml.load(descriptionContent.substring(3, metadataEnd));
+        descriptionContent = descriptionContent
+          .substring(metadataEnd + 3)
+          .trim();
+      }
+
+      // If description is just metadata
+      if (descriptionContent === "") {
+        hasDescription = false;
+      } else {
+        descriptionContent = marked(descriptionContent).replace(/`/g, "\\`");
+        fs.mkdirSync(path.resolve(galleryBuild, category), { recursive: true });
+        fs.writeFileSync(
+          path.resolve(galleryBuild, `${pageId}-description.ts`),
+          `
+          import {html} from "lit";
+          export default html\`${descriptionContent}\`
+          `
+        );
+      }
+    }
+    content += `  "${pageId}": {
+      metadata: ${JSON.stringify(metadata)},
+      ${
+        hasDescription
+          ? `description: () => import("./${pageId}-description").then(m => m.default),`
+          : ""
+      }
+      ${hasDemo ? `demo: () => import("../src/pages/${pageId}")` : ""}
+
+    },\n`;
+  }
+
+  content += "};\n";
+
+  // Generate sidebar
+  const sidebarPath = path.resolve(paths.gallery_dir, "sidebar.js");
+  // To make watch work during development
+  delete require.cache[sidebarPath];
+  const sidebar = require(sidebarPath);
+
+  const pagesToProcess = {};
+  for (const key of processed) {
+    const [category, page] = key.split("/", 2);
+    if (!(category in pagesToProcess)) {
+      pagesToProcess[category] = new Set();
+    }
+    pagesToProcess[category].add(page);
+  }
+
+  for (const group of Object.values(sidebar)) {
+    const toProcess = pagesToProcess[group.category];
+    delete pagesToProcess[group.category];
+
+    if (!toProcess) {
+      console.error("Unknown category", group.category);
+      if (!group.pages) {
+        group.pages = [];
+      }
+      continue;
+    }
+
+    // Any pre-defined groups will not be sorted.
+    if (group.pages) {
+      for (const page of group.pages) {
+        if (!toProcess.delete(page)) {
+          console.error("Found unreferenced demo", page);
+        }
+      }
+    } else {
+      group.pages = [];
+    }
+    for (const page of Array.from(toProcess).sort()) {
+      group.pages.push(page);
+    }
+  }
+
+  for (const [category, pages] of Object.entries(pagesToProcess)) {
+    sidebar.push({
+      category,
+      header: category,
+      pages: Array.from(pages).sort(),
+    });
+  }
+
+  content += `export const SIDEBAR = ${JSON.stringify(sidebar, null, 2)};\n`;
+
   fs.writeFileSync(
-    path.resolve(galleryBuild, "import-demos.ts"),
+    path.resolve(galleryBuild, "import-pages.ts"),
     content,
     "utf-8"
   );
@@ -51,11 +158,25 @@ gulp.task(
     gulp.parallel(
       "gen-icons-json",
       "build-translations",
-      "gather-gallery-demos"
+      "build-locale-data",
+      "gather-gallery-pages"
     ),
     "copy-static-gallery",
     "gen-index-gallery-dev",
-    env.useRollup() ? "rollup-dev-server-gallery" : "webpack-dev-server-gallery"
+    gulp.parallel(
+      env.useRollup()
+        ? "rollup-dev-server-gallery"
+        : "webpack-dev-server-gallery",
+      async function watchMarkdownFiles() {
+        gulp.watch(
+          [
+            path.resolve(paths.gallery_dir, "src/pages/**/*.markdown"),
+            path.resolve(paths.gallery_dir, "sidebar.js"),
+          ],
+          gulp.series("gather-gallery-pages")
+        );
+      }
+    )
   )
 );
 
@@ -70,7 +191,8 @@ gulp.task(
     gulp.parallel(
       "gen-icons-json",
       "build-translations",
-      "gather-gallery-demos"
+      "build-locale-data",
+      "gather-gallery-pages"
     ),
     "copy-static-gallery",
     env.useRollup() ? "rollup-prod-gallery" : "webpack-prod-gallery",

build-scripts/gulp/gather-static.js

@@ -2,7 +2,6 @@
 
 const gulp = require("gulp");
 const path = require("path");
-const cpx = require("cpx");
 const fs = require("fs-extra");
 const paths = require("../paths");
 
@@ -13,19 +12,28 @@ const polyPath = (...parts) => path.resolve(paths.polymer_dir, ...parts);
 const copyFileDir = (fromFile, toDir) =>
   fs.copySync(fromFile, path.join(toDir, path.basename(fromFile)));
 
-const genStaticPath = (staticDir) => (...parts) =>
-  path.resolve(staticDir, ...parts);
+const genStaticPath =
+  (staticDir) =>
+  (...parts) =>
+    path.resolve(staticDir, ...parts);
 
 function copyTranslations(staticDir) {
   const staticPath = genStaticPath(staticDir);
 
   // Translation output
   fs.copySync(
-    polyPath("build-translations/output"),
+    polyPath("build/translations/output"),
     staticPath("translations")
   );
 }
 
+function copyLocaleData(staticDir) {
+  const staticPath = genStaticPath(staticDir);
+
+  // Locale data output
+  fs.copySync(polyPath("build/locale-data"), staticPath("locale-data"));
+}
+
 function copyMdiIcons(staticDir) {
   const staticPath = genStaticPath(staticDir);
 
@@ -62,12 +70,20 @@ function copyLoaderJS(staticDir) {
 function copyFonts(staticDir) {
   const staticPath = genStaticPath(staticDir);
   // Local fonts
-  cpx.copySync(
-    npmPath("roboto-fontface/fonts/roboto/*.woff2"),
-    staticPath("fonts/roboto")
+  fs.copySync(
+    npmPath("roboto-fontface/fonts/roboto/"),
+    staticPath("fonts/roboto/"),
+    {
+      filter: (src) => !src.includes(".") || src.endsWith(".woff2"),
+    }
   );
 }
 
+function copyQrScannerWorker(staticDir) {
+  const staticPath = genStaticPath(staticDir);
+  copyFileDir(npmPath("qr-scanner/qr-scanner-worker.min.js"), staticPath("js"));
+}
+
 function copyMapPanel(staticDir) {
   const staticPath = genStaticPath(staticDir);
   copyFileDir(
@@ -80,6 +96,11 @@ function copyMapPanel(staticDir) {
   );
 }
 
+gulp.task("copy-locale-data", async () => {
+  const staticDir = paths.app_output_static;
+  copyLocaleData(staticDir);
+});
+
 gulp.task("copy-translations-app", async () => {
   const staticDir = paths.app_output_static;
   copyTranslations(staticDir);
@@ -90,6 +111,11 @@ gulp.task("copy-translations-supervisor", async () => {
   copyTranslations(staticDir);
 });
 
+gulp.task("copy-locale-data-supervisor", async () => {
+  const staticDir = paths.hassio_output_static;
+  copyLocaleData(staticDir);
+});
+
 gulp.task("copy-static-app", async () => {
   const staticDir = paths.app_output_static;
   // Basic static files
@@ -99,10 +125,14 @@ gulp.task("copy-static-app", async () => {
   copyPolyfills(staticDir);
   copyFonts(staticDir);
   copyTranslations(staticDir);
+  copyLocaleData(staticDir);
   copyMdiIcons(staticDir);
 
   // Panel assets
   copyMapPanel(staticDir);
+
+  // Qr Scanner assets
+  copyQrScannerWorker(staticDir);
 });
 
 gulp.task("copy-static-demo", async () => {
@@ -119,6 +149,7 @@ gulp.task("copy-static-demo", async () => {
   copyMapPanel(paths.demo_output_static);
   copyFonts(paths.demo_output_static);
   copyTranslations(paths.demo_output_static);
+  copyLocaleData(paths.demo_output_static);
   copyMdiIcons(paths.demo_output_static);
 });
 
@@ -133,6 +164,7 @@ gulp.task("copy-static-cast", async () => {
   copyMapPanel(paths.cast_output_static);
   copyFonts(paths.cast_output_static);
   copyTranslations(paths.cast_output_static);
+  copyLocaleData(paths.cast_output_static);
   copyMdiIcons(paths.cast_output_static);
 });
 
@@ -148,5 +180,6 @@ gulp.task("copy-static-gallery", async () => {
   copyMapPanel(paths.gallery_output_static);
   copyFonts(paths.gallery_output_static);
   copyTranslations(paths.gallery_output_static);
+  copyLocaleData(paths.gallery_output_static);
   copyMdiIcons(paths.gallery_output_static);
 });

build-scripts/gulp/gen-icons-json.js

@@ -22,17 +22,40 @@ const getMeta = () => {
     const svg = fs.readFileSync(`${ICON_PATH}/${icon.name}.svg`, {
       encoding,
     });
-    return { path: svg.match(/ d="([^"]+)"/)[1], name: icon.name };
+    return {
+      path: svg.match(/ d="([^"]+)"/)[1],
+      name: icon.name,
+      tags: icon.tags,
+      aliases: icon.aliases,
+    };
   });
 };
 
 const addRemovedMeta = (meta) => {
   const file = fs.readFileSync(REMOVED_ICONS_PATH, { encoding });
   const removed = JSON.parse(file);
-  const combinedMeta = [...meta, ...removed];
+  const removedMeta = removed.map((removeIcon) => ({
+    path: removeIcon.path,
+    name: removeIcon.name,
+    tags: [],
+    aliases: [],
+  }));
+  const combinedMeta = [...meta, ...removedMeta];
   return combinedMeta.sort((a, b) => a.name.localeCompare(b.name));
 };
 
+const homeAutomationTag = "Home Automation";
+
+const orderMeta = (meta) => {
+  const homeAutomationMeta = meta.filter((icon) =>
+    icon.tags.includes(homeAutomationTag)
+  );
+  const otherMeta = meta.filter(
+    (icon) => !icon.tags.includes(homeAutomationTag)
+  );
+  return [...homeAutomationMeta, ...otherMeta];
+};
+
 const splitBySize = (meta) => {
   const chunks = [];
   const CHUNK_SIZE = 50000;
@@ -77,8 +100,10 @@ const findDifferentiator = (curString, prevString) => {
 };
 
 gulp.task("gen-icons-json", (done) => {
-  const meta = addRemovedMeta(getMeta());
-  const split = splitBySize(meta);
+  const meta = getMeta();
+
+  const metaAndRemoved = addRemovedMeta(meta);
+  const split = splitBySize(metaAndRemoved);
 
   if (!fs.existsSync(OUTPUT_DIR)) {
     fs.mkdirSync(OUTPUT_DIR, { recursive: true });
@@ -116,5 +141,18 @@ gulp.task("gen-icons-json", (done) => {
     JSON.stringify({ version: package.version, parts })
   );
 
+  fs.writeFileSync(
+    path.resolve(OUTPUT_DIR, "iconList.json"),
+    JSON.stringify(
+      orderMeta(meta).map((icon) => ({
+        name: icon.name,
+        keywords: [
+          ...icon.tags.map((t) => t.toLowerCase().replace(/\s\/\s/g, " ")),
+          ...icon.aliases,
+        ],
+      }))
+    )
+  );
+
   done();
 });

build-scripts/gulp/hassio.js

@@ -1,9 +1,6 @@
 const gulp = require("gulp");
-const fs = require("fs");
-const path = require("path");
 
 const env = require("../env");
-const paths = require("../paths");
 
 require("./clean.js");
 require("./gen-icons-json.js");
@@ -20,10 +17,11 @@ gulp.task(
       process.env.NODE_ENV = "development";
     },
     "clean-hassio",
-    "gen-icons-json",
     "gen-index-hassio-dev",
     "build-supervisor-translations",
     "copy-translations-supervisor",
+    "build-locale-data",
+    "copy-locale-data-supervisor",
     env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
@@ -35,9 +33,10 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean-hassio",
-    "gen-icons-json",
     "build-supervisor-translations",
     "copy-translations-supervisor",
+    "build-locale-data",
+    "copy-locale-data-supervisor",
     env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
     "gen-index-hassio-prod",
     ...// Don't compress running tests

build-scripts/gulp/locale-data.js

@@ -0,0 +1,74 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+
+const del = require("del");
+const path = require("path");
+const gulp = require("gulp");
+const fs = require("fs");
+const paths = require("../paths");
+
+const outDir = "build/locale-data";
+
+gulp.task("clean-locale-data", () => del([outDir]));
+
+gulp.task("ensure-locale-data-build-dir", (done) => {
+  if (!fs.existsSync(outDir)) {
+    fs.mkdirSync(outDir, { recursive: true });
+  }
+  done();
+});
+
+const modules = {
+  "intl-relativetimeformat": "RelativeTimeFormat",
+  "intl-datetimeformat": "DateTimeFormat",
+  "intl-numberformat": "NumberFormat",
+};
+
+gulp.task("create-locale-data", (done) => {
+  const translationMeta = JSON.parse(
+    fs.readFileSync(
+      path.join(paths.translations_src, "translationMetadata.json")
+    )
+  );
+  Object.entries(modules).forEach(([module, className]) => {
+    Object.keys(translationMeta).forEach((lang) => {
+      try {
+        const localeData = String(
+          fs.readFileSync(
+            require.resolve(`@formatjs/${module}/locale-data/${lang}.js`)
+          )
+        )
+          .replace(
+            new RegExp(
+              `\\/\\*\\s*@generated\\s*\\*\\/\\s*\\/\\/\\s*prettier-ignore\\s*if\\s*\\(Intl\\.${className}\\s*&&\\s*typeof\\s*Intl\\.${className}\\.__addLocaleData\\s*===\\s*'function'\\)\\s*{\\s*Intl\\.${className}\\.__addLocaleData\\(`,
+              "im"
+            ),
+            ""
+          )
+          .replace(/\)\s*}/im, "");
+        // make sure we have valid JSON
+        JSON.parse(localeData);
+        if (!fs.existsSync(path.join(outDir, module))) {
+          fs.mkdirSync(path.join(outDir, module), { recursive: true });
+        }
+        fs.writeFileSync(
+          path.join(outDir, `${module}/${lang}.json`),
+          localeData
+        );
+      } catch (e) {
+        if (e.code !== "MODULE_NOT_FOUND") {
+          throw e;
+        }
+      }
+    });
+    done();
+  });
+});
+
+gulp.task(
+  "build-locale-data",
+  gulp.series(
+    "clean-locale-data",
+    "ensure-locale-data-build-dir",
+    "create-locale-data"
+  )
+);

build-scripts/gulp/translations.js

@@ -1,3 +1,5 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+
 const crypto = require("crypto");
 const del = require("del");
 const path = require("path");
@@ -15,7 +17,7 @@ const paths = require("../paths");
 
 const inFrontendDir = "translations/frontend";
 const inBackendDir = "translations/backend";
-const workDir = "build-translations";
+const workDir = "build/translations";
 const fullDir = workDir + "/full";
 const coreDir = workDir + "/core";
 const outDir = workDir + "/output";
@@ -26,13 +28,6 @@ gulp.task("translations-enable-merge-backend", (done) => {
   done();
 });
 
-String.prototype.rsplit = function (sep, maxsplit) {
-  var split = this.split(sep);
-  return maxsplit
-    ? [split.slice(0, -maxsplit).join(sep)].concat(split.slice(-maxsplit))
-    : split;
-};
-
 // Panel translations which should be split from the core translations.
 const TRANSLATION_FRAGMENTS = Object.keys(
   require("../../src/translations/en.json").ui.panel
@@ -40,7 +35,7 @@ const TRANSLATION_FRAGMENTS = Object.keys(
 
 function recursiveFlatten(prefix, data) {
   let output = {};
-  Object.keys(data).forEach(function (key) {
+  Object.keys(data).forEach((key) => {
     if (typeof data[key] === "object") {
       output = {
         ...output,
@@ -101,15 +96,19 @@ function lokaliseTransform(data, original, file) {
     if (value instanceof Object) {
       output[key] = lokaliseTransform(value, original, file);
     } else {
-      output[key] = value.replace(re_key_reference, (match, key) => {
-        const replace = key.split("::").reduce((tr, k) => {
+      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 ${key} in ${file.path}`);
+            throw Error(
+              `Invalid key placeholder ${lokalise_key} in ${file.path}`
+            );
           }
           return tr[k];
         }, original);
         if (typeof replace !== "string") {
-          throw Error(`Invalid key placeholder ${key} in ${file.path}`);
+          throw Error(
+            `Invalid key placeholder ${lokalise_key} in ${file.path}`
+          );
         }
         return replace;
       });
@@ -118,18 +117,16 @@ function lokaliseTransform(data, original, file) {
   return output;
 }
 
-gulp.task("clean-translations", function () {
-  return del([workDir]);
-});
+gulp.task("clean-translations", () => del([workDir]));
 
 gulp.task("ensure-translations-build-dir", (done) => {
   if (!fs.existsSync(workDir)) {
-    fs.mkdirSync(workDir);
+    fs.mkdirSync(workDir, { recursive: true });
   }
   done();
 });
 
-gulp.task("create-test-metadata", function (cb) {
+gulp.task("create-test-metadata", (cb) => {
   fs.writeFile(
     workDir + "/testMetadata.json",
     JSON.stringify({
@@ -143,17 +140,13 @@ gulp.task("create-test-metadata", function (cb) {
 
 gulp.task(
   "create-test-translation",
-  gulp.series("create-test-metadata", function createTestTranslation() {
-    return gulp
+  gulp.series("create-test-metadata", () =>
+    gulp
       .src(path.join(paths.translations_src, "en.json"))
-      .pipe(
-        transform(function (data, file) {
-          return recursiveEmpty(data);
-        })
-      )
+      .pipe(transform((data, _file) => recursiveEmpty(data)))
       .pipe(rename("test.json"))
-      .pipe(gulp.dest(workDir));
-  })
+      .pipe(gulp.dest(workDir))
+  )
 );
 
 /**
@@ -165,7 +158,7 @@ gulp.task(
  * project is buildable immediately after merging new translation keys, since
  * the Lokalise update to translations/en.json will not happen immediately.
  */
-gulp.task("build-master-translation", function () {
+gulp.task("build-master-translation", () => {
   const src = [path.join(paths.translations_src, "en.json")];
 
   if (mergeBackend) {
@@ -174,11 +167,7 @@ gulp.task("build-master-translation", function () {
 
   return gulp
     .src(src)
-    .pipe(
-      transform(function (data, file) {
-        return lokaliseTransform(data, data, file);
-      })
-    )
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
     .pipe(
       merge({
         fileName: "translationMaster.json",
@@ -187,18 +176,14 @@ gulp.task("build-master-translation", function () {
     .pipe(gulp.dest(workDir));
 });
 
-gulp.task("build-merged-translations", function () {
-  return gulp
+gulp.task("build-merged-translations", () =>
+  gulp
     .src([inFrontendDir + "/*.json", workDir + "/test.json"], {
       allowEmpty: true,
     })
+    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
     .pipe(
-      transform(function (data, file) {
-        return lokaliseTransform(data, data, file);
-      })
-    )
-    .pipe(
-      foreach(function (stream, file) {
+      foreach((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
@@ -230,17 +215,17 @@ gulp.task("build-merged-translations", function () {
           )
           .pipe(gulp.dest(fullDir));
       })
-    );
-});
+    )
+);
 
-var taskName;
+let taskName;
 
 const splitTasks = [];
 TRANSLATION_FRAGMENTS.forEach((fragment) => {
   taskName = "build-translation-fragment-" + fragment;
-  gulp.task(taskName, function () {
+  gulp.task(taskName, () =>
     // Return only the translations for this fragment.
-    return gulp
+    gulp
       .src(fullDir + "/*.json")
       .pipe(
         transform((data) => ({
@@ -251,18 +236,18 @@ TRANSLATION_FRAGMENTS.forEach((fragment) => {
           },
         }))
       )
-      .pipe(gulp.dest(workDir + "/" + fragment));
-  });
+      .pipe(gulp.dest(workDir + "/" + fragment))
+  );
   splitTasks.push(taskName);
 });
 
 taskName = "build-translation-core";
-gulp.task(taskName, function () {
+gulp.task(taskName, () =>
   // Remove the fragment translations from the core translation.
-  return gulp
+  gulp
     .src(fullDir + "/*.json")
     .pipe(
-      transform((data, file) => {
+      transform((data, _file) => {
         TRANSLATION_FRAGMENTS.forEach((fragment) => {
           delete data.ui.panel[fragment];
         });
@@ -270,14 +255,14 @@ gulp.task(taskName, function () {
         return data;
       })
     )
-    .pipe(gulp.dest(coreDir));
-});
+    .pipe(gulp.dest(coreDir))
+);
 
 splitTasks.push(taskName);
 
-gulp.task("build-flattened-translations", function () {
+gulp.task("build-flattened-translations", () =>
   // Flatten the split versions of our translations, and move them into outDir
-  return gulp
+  gulp
     .src(
       TRANSLATION_FRAGMENTS.map(
         (fragment) => workDir + "/" + fragment + "/*.json"
@@ -285,41 +270,45 @@ gulp.task("build-flattened-translations", function () {
       { base: workDir }
     )
     .pipe(
-      transform(function (data) {
+      transform((data) =>
         // Polymer.AppLocalizeBehavior requires flattened json
-        return flatten(data);
-      })
+        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));
-});
+    .pipe(gulp.dest(outDir))
+);
 
 const fingerprints = {};
 
-gulp.task(
-  "build-translation-fingerprints",
-  function fingerprintTranslationFiles() {
-    // Fingerprint full file of each language
-    const files = fs.readdirSync(fullDir);
+gulp.task("build-translation-fingerprints", () => {
+  // Fingerprint full file of each language
+  const files = fs.readdirSync(fullDir);
 
-    for (let i = 0; i < files.length; i++) {
-      fingerprints[files[i].split(".")[0]] = {
-        // In dev we create fake hashes
-        hash: env.isProdBuild()
-          ? crypto
-              .createHash("md5")
-              .update(fs.readFileSync(path.join(fullDir, files[i]), "utf-8"))
-              .digest("hex")
-          : "dev",
-      };
-    }
+  for (let i = 0; i < files.length; i++) {
+    fingerprints[files[i].split(".")[0]] = {
+      // In dev we create fake hashes
+      hash: env.isProdBuild()
+        ? crypto
+            .createHash("md5")
+            .update(fs.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);
 
@@ -335,35 +324,43 @@ gulp.task(
         }`
       );
     });
-
-    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", function () {
-  return gulp
+  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(gulp.dest(workDir + "/supervisor"));
-});
-
-gulp.task("build-translation-flatten-supervisor", function () {
-  return gulp
-    .src(workDir + "/supervisor/*.json")
     .pipe(
-      transform(function (data) {
-        // Polymer.AppLocalizeBehavior requires flattened json
-        return flatten(data);
+      rename((filePath) => {
+        // In dev we create the file with the fake hash in the filename
+        if (!env.isProdBuild()) {
+          filePath.basename += "-dev";
+        }
       })
     )
-    .pipe(gulp.dest(outDir));
-});
+    .pipe(gulp.dest(workDir + "/supervisor"))
+);
 
-gulp.task("build-translation-write-metadata", function writeMetadata() {
-  return gulp
+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"),
@@ -374,13 +371,14 @@ gulp.task("build-translation-write-metadata", function writeMetadata() {
     )
     .pipe(merge({}))
     .pipe(
-      transform(function (data) {
+      transform((data) => {
         const newData = {};
         Object.entries(data).forEach(([key, value]) => {
           // Filter out translations without native name.
           if (value.nativeName) {
             newData[key] = value;
           } else {
+            // eslint-disable-next-line no-console
             console.warn(
               `Skipping language ${key}. Native name was not translated.`
             );
@@ -396,19 +394,26 @@ gulp.task("build-translation-write-metadata", function writeMetadata() {
       }))
     )
     .pipe(rename("translationMetadata.json"))
-    .pipe(gulp.dest(workDir));
-});
+    .pipe(gulp.dest(workDir))
+);
+
+gulp.task(
+  "create-translations",
+  gulp.series(
+    env.isProdBuild() ? (done) => done() : "create-test-translation",
+    "build-master-translation",
+    "build-merged-translations",
+    gulp.parallel(...splitTasks),
+    "build-flattened-translations"
+  )
+);
 
 gulp.task(
   "build-translations",
   gulp.series(
     "clean-translations",
     "ensure-translations-build-dir",
-    env.isProdBuild() ? (done) => done() : "create-test-translation",
-    "build-master-translation",
-    "build-merged-translations",
-    gulp.parallel(...splitTasks),
-    "build-flattened-translations",
+    "create-translations",
     "build-translation-fingerprints",
     "build-translation-write-metadata"
   )

build-scripts/gulp/webpack.js

@@ -1,4 +1,6 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 // Tasks to run webpack.
+const fs = require("fs");
 const gulp = require("gulp");
 const webpack = require("webpack");
 const WebpackDevServer = require("webpack-dev-server");
@@ -18,6 +20,13 @@ const bothBuilds = (createConfigFunc, params) => [
   createConfigFunc({ ...params, latestBuild: false }),
 ];
 
+const isWsl =
+  fs.existsSync("/proc/version") &&
+  fs
+    .readFileSync("/proc/version", "utf-8")
+    .toLocaleLowerCase()
+    .includes("microsoft");
+
 /**
  * @param {{
  *   compiler: import("webpack").Compiler,
@@ -26,26 +35,29 @@ const bothBuilds = (createConfigFunc, params) => [
  *   listenHost?: string
  * }}
  */
-const runDevServer = ({
+const runDevServer = async ({
   compiler,
   contentBase,
   port,
   listenHost = "localhost",
-}) =>
-  new WebpackDevServer(compiler, {
-    open: true,
-    watchContentBase: true,
-    contentBase,
-  }).listen(port, listenHost, function (err) {
-    if (err) {
-      throw err;
-    }
-    // Server listening
-    log(
-      "[webpack-dev-server]",
-      `Project is running at http://localhost:${port}`
-    );
-  });
+}) => {
+  const server = new WebpackDevServer(
+    {
+      open: true,
+      host: listenHost,
+      port,
+      static: {
+        directory: contentBase,
+        watch: true,
+      },
+    },
+    compiler
+  );
+
+  await server.start();
+  // Server listening
+  log("[webpack-dev-server]", `Project is running at http://localhost:${port}`);
+};
 
 const doneHandler = (done) => (err, stats) => {
   if (err) {
@@ -57,6 +69,7 @@ const doneHandler = (done) => (err, stats) => {
   }
 
   if (stats.hasErrors() || stats.hasWarnings()) {
+    // eslint-disable-next-line no-console
     console.log(stats.toString("minimal"));
   }
 
@@ -78,13 +91,14 @@ const prodBuild = (conf) =>
 
 gulp.task("webpack-watch-app", () => {
   // This command will run forever because we don't close compiler
-  webpack(createAppConfig({ isProdBuild: false, latestBuild: true })).watch(
-    { ignored: /build-translations/ },
-    doneHandler()
-  );
+  webpack(
+    process.env.ES5
+      ? bothBuilds(createAppConfig, { isProdBuild: false })
+      : createAppConfig({ isProdBuild: false, latestBuild: true })
+  ).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")
   );
 });
 
@@ -96,13 +110,13 @@ gulp.task("webpack-prod-app", () =>
   )
 );
 
-gulp.task("webpack-dev-server-demo", () => {
+gulp.task("webpack-dev-server-demo", () =>
   runDevServer({
     compiler: webpack(bothBuilds(createDemoConfig, { isProdBuild: false })),
     contentBase: paths.demo_output_root,
     port: 8090,
-  });
-});
+  })
+);
 
 gulp.task("webpack-prod-demo", () =>
   prodBuild(
@@ -112,15 +126,15 @@ gulp.task("webpack-prod-demo", () =>
   )
 );
 
-gulp.task("webpack-dev-server-cast", () => {
+gulp.task("webpack-dev-server-cast", () =>
   runDevServer({
     compiler: webpack(bothBuilds(createCastConfig, { isProdBuild: false })),
     contentBase: paths.cast_output_root,
     port: 8080,
     // Accessible from the network, because that's how Cast hits it.
     listenHost: "0.0.0.0",
-  });
-});
+  })
+);
 
 gulp.task("webpack-prod-cast", () =>
   prodBuild(
@@ -137,7 +151,7 @@ gulp.task("webpack-watch-hassio", () => {
       isProdBuild: false,
       latestBuild: true,
     })
-  ).watch({ ignored: /build-translations/ }, doneHandler());
+  ).watch({ ignored: /build/, poll: isWsl }, doneHandler());
 
   gulp.watch(
     path.join(paths.translations_src, "en.json"),
@@ -153,14 +167,15 @@ gulp.task("webpack-prod-hassio", () =>
   )
 );
 
-gulp.task("webpack-dev-server-gallery", () => {
+gulp.task("webpack-dev-server-gallery", () =>
   runDevServer({
     // We don't use the es5 build, but the dev server will fuck up the publicPath if we don't
     compiler: webpack(bothBuilds(createGalleryConfig, { isProdBuild: false })),
     contentBase: paths.gallery_output_root,
     port: 8100,
-  });
-});
+    listenHost: "0.0.0.0",
+  })
+);
 
 gulp.task("webpack-prod-gallery", () =>
   prodBuild(

build-scripts/paths.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 
 module.exports = {
@@ -25,6 +26,7 @@ module.exports = {
   cast_output_es5: path.resolve(__dirname, "../cast/dist/frontend_es5"),
 
   gallery_dir: path.resolve(__dirname, "../gallery"),
+  gallery_build: path.resolve(__dirname, "../gallery/build"),
   gallery_output_root: path.resolve(__dirname, "../gallery/dist"),
   gallery_output_latest: path.resolve(
     __dirname,

build-scripts/rollup.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 
 const commonjs = require("@rollup/plugin-commonjs");
@@ -32,88 +33,77 @@ const createRollupConfig = ({
   publicPath,
   dontHash,
   isWDS,
-}) => {
-  return {
-    /**
-     * @type { import("rollup").InputOptions }
-     */
-    inputOptions: {
-      input: entry,
-      // Some entry points contain no JavaScript. This setting silences a warning about that.
-      // https://rollupjs.org/guide/en/#preserveentrysignatures
-      preserveEntrySignatures: false,
-      plugins: [
-        ignore({
-          files: bundle.emptyPackages({ latestBuild }),
+}) => ({
+  /**
+   * @type { import("rollup").InputOptions }
+   */
+  inputOptions: {
+    input: entry,
+    // Some entry points contain no JavaScript. This setting silences a warning about that.
+    // https://rollupjs.org/guide/en/#preserveentrysignatures
+    preserveEntrySignatures: false,
+    plugins: [
+      ignore({
+        files: bundle.emptyPackages({ latestBuild }),
+      }),
+      resolve({
+        extensions,
+        preferBuiltins: false,
+        browser: true,
+        rootDir: paths.polymer_dir,
+      }),
+      commonjs(),
+      json(),
+      babel({
+        ...bundle.babelOptions({ latestBuild }),
+        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,
         }),
-        resolve({
-          extensions,
-          preferBuiltins: false,
-          browser: true,
-          rootDir: paths.polymer_dir,
+      !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,
         }),
-        commonjs({
-          namedExports: {
-            "js-yaml": ["safeDump", "safeLoad"],
-          },
-        }),
-        json(),
-        babel({
-          ...bundle.babelOptions({ latestBuild }),
-          extensions,
-          exclude: bundle.babelExclude(),
-          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/guide/en/#outputdir
-      dir: outputPath,
-      // https://rollupjs.org/guide/en/#outputformat
-      format: latestBuild ? "es" : "systemjs",
-      // https://rollupjs.org/guide/en/#outputexternallivebindings
-      externalLiveBindings: false,
-      // https://rollupjs.org/guide/en/#outputentryfilenames
-      // https://rollupjs.org/guide/en/#outputchunkfilenames
-      // https://rollupjs.org/guide/en/#outputassetfilenames
-      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/guide/en/#outputsourcemap
-      sourcemap: isProdBuild ? true : "inline",
-    },
-  };
-};
+    ].filter(Boolean),
+  },
+  /**
+   * @type { import("rollup").OutputOptions }
+   */
+  outputOptions: {
+    // https://rollupjs.org/guide/en/#outputdir
+    dir: outputPath,
+    // https://rollupjs.org/guide/en/#outputformat
+    format: latestBuild ? "es" : "systemjs",
+    // https://rollupjs.org/guide/en/#outputexternallivebindings
+    externalLiveBindings: false,
+    // https://rollupjs.org/guide/en/#outputentryfilenames
+    // https://rollupjs.org/guide/en/#outputchunkfilenames
+    // https://rollupjs.org/guide/en/#outputassetfilenames
+    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/guide/en/#outputsourcemap
+    sourcemap: isProdBuild ? true : "inline",
+  },
+});
 
-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) => {
-  return createRollupConfig(
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) =>
+  createRollupConfig(
     bundle.config.app({
       isProdBuild,
       latestBuild,
@@ -121,31 +111,24 @@ const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild, isWDS }) => {
       isWDS,
     })
   );
-};
 
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createRollupConfig(
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createRollupConfig(
     bundle.config.demo({
       isProdBuild,
       latestBuild,
       isStatsBuild,
     })
   );
-};
 
-const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
-};
+const createCastConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
 
-const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
-};
+const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
 
-const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  return createRollupConfig(
-    bundle.config.gallery({ isProdBuild, latestBuild })
-  );
-};
+const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+  createRollupConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
 
 module.exports = {
   createAppConfig,

build-scripts/util.js

@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 const fs = require("fs");
 

build-scripts/webpack.js

@@ -1,10 +1,12 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const webpack = require("webpack");
 const path = require("path");
 const TerserPlugin = require("terser-webpack-plugin");
 const { WebpackManifestPlugin } = require("webpack-manifest-plugin");
 const paths = require("./paths.js");
-const bundle = require("./bundle");
+const bundle = require("./bundle.js");
 const log = require("fancy-log");
+const WebpackBar = require("webpackbar");
 
 class LogStartCompilePlugin {
   ignoredFirst = false;
@@ -46,15 +48,18 @@ const createWebpackConfig = ({
       rules: [
         {
           test: /\.m?js$|\.ts$/,
-          exclude: bundle.babelExclude(),
           use: {
             loader: "babel-loader",
-            options: bundle.babelOptions({ latestBuild }),
+            options: {
+              ...bundle.babelOptions({ latestBuild }),
+              cacheDirectory: !isProdBuild,
+              cacheCompression: false,
+            },
           },
         },
         {
           test: /\.css$/,
-          use: "raw-loader",
+          type: "asset/source",
         },
       ],
     },
@@ -66,8 +71,11 @@ const createWebpackConfig = ({
           terserOptions: bundle.terserOptions(latestBuild),
         }),
       ],
+      moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
+      chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
     },
     plugins: [
+      new WebpackBar({ fancy: !isProdBuild }),
       new WebpackManifestPlugin({
         // Only include the JS of entrypoints
         filter: (file) => file.isInitial && !file.name.endsWith(".map"),
@@ -94,6 +102,7 @@ const createWebpackConfig = ({
               ? path.resolve(context, resource)
               : require.resolve(resource);
           } catch (err) {
+            // eslint-disable-next-line no-console
             console.error(
               "Error in Home Assistant ignore plugin",
               resource,
@@ -111,66 +120,61 @@ const createWebpackConfig = ({
         new RegExp(bundle.emptyPackages({ latestBuild }).join("|")),
         path.resolve(paths.polymer_dir, "src/util/empty.js")
       ),
-      // We need to change the import of the polyfill for EventTarget, so we replace the polyfill file with our customized one
-      new webpack.NormalModuleReplacementPlugin(
-        new RegExp(
-          require.resolve(
-            "lit-virtualizer/lib/uni-virtualizer/lib/polyfillLoaders/EventTarget.js"
-          )
-        ),
-        path.resolve(paths.polymer_dir, "src/resources/EventTarget-ponyfill.js")
-      ),
       !isProdBuild && new LogStartCompilePlugin(),
     ].filter(Boolean),
     resolve: {
       extensions: [".ts", ".js", ".json"],
+      alias: {
+        "lit/decorators$": "lit/decorators.js",
+        "lit/directive$": "lit/directive.js",
+        "lit/directives/until$": "lit/directives/until.js",
+        "lit/directives/class-map$": "lit/directives/class-map.js",
+        "lit/directives/style-map$": "lit/directives/style-map.js",
+        "lit/directives/if-defined$": "lit/directives/if-defined.js",
+        "lit/directives/guard$": "lit/directives/guard.js",
+        "lit/directives/cache$": "lit/directives/cache.js",
+        "lit/directives/repeat$": "lit/directives/repeat.js",
+        "lit/polyfill-support$": "lit/polyfill-support.js",
+      },
     },
     output: {
       filename: ({ chunk }) => {
-        if (!isProdBuild || dontHash.has(chunk.name)) {
+        if (!isProdBuild || isStatsBuild || dontHash.has(chunk.name)) {
           return `${chunk.name}.js`;
         }
         return `${chunk.name}.${chunk.hash.substr(0, 8)}.js`;
       },
       chunkFilename:
-        isProdBuild && !isStatsBuild
-          ? "chunk.[chunkhash].js"
-          : "[name].chunk.js",
+        isProdBuild && !isStatsBuild ? "[chunkhash:8].js" : "[id].chunk.js",
       path: outputPath,
       publicPath,
       // To silence warning in worker plugin
       globalObject: "self",
     },
+    experiments: {
+      topLevelAwait: true,
+    },
   };
 };
 
-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createWebpackConfig(
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createWebpackConfig(
     bundle.config.app({ isProdBuild, latestBuild, isStatsBuild })
   );
-};
 
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createWebpackConfig(
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+  createWebpackConfig(
     bundle.config.demo({ isProdBuild, latestBuild, isStatsBuild })
   );
-};
 
-const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
-};
+const createCastConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
 
-const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(
-    bundle.config.hassio({ isProdBuild, latestBuild })
-  );
-};
+const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
 
-const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  return createWebpackConfig(
-    bundle.config.gallery({ isProdBuild, latestBuild })
-  );
-};
+const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+  createWebpackConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
 
 module.exports = {
   createAppConfig,

cast/src/html/launcher-faq.html.template

@@ -139,7 +139,7 @@
           Your authentication credentials or Home Assistant url are never sent
           to the Cloud. You can validate this behavior in
           <a
-            href="https://github.com/home-assistant/home-assistant-polymer/tree/dev/cast"
+            href="https://github.com/home-assistant/frontend/tree/dev/cast"
             target="_blank"
             >the source code</a
           >.

cast/src/html/media.html.template

@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <script src="//www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js"></script>
+    <style>
+      body {
+        --logo-image: url('https://www.home-assistant.io/images/home-assistant-logo.svg');
+        --logo-repeat: no-repeat;
+        --playback-logo-image: url('https://www.home-assistant.io/images/home-assistant-logo.svg');
+        --theme-hue: 200;
+        --progress-color: #03a9f4;
+        --splash-image: url('https://home-assistant.io/images/cast/splash.png');
+        --splash-size: cover;
+        --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>
+    <%= renderTemplate('_js_base') %>
+
+    <cast-media-player></cast-media-player>
+
+    <script>
+      import("<%= latestMediaJS %>");
+      window.latestJS = true;
+    </script>
+
+    <script>
+      if (!window.latestJS) {
+        <% if (useRollup) { %>
+          _ls("/static/js/s.min.js").onload = function() {
+            System.import("<%= es5MediaJS %>");
+          };
+        <% } else { %>
+          _ls("<%= es5MediaJS %>");
+        <% } %>
+      }
+    </script>
+  </body>
+</html>

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

@@ -1,16 +1,10 @@
+import "@material/mwc-button/mwc-button";
+import { mdiCast, mdiCastConnected } from "@mdi/js";
 import "@polymer/paper-item/paper-icon-item";
 import "@polymer/paper-listbox/paper-listbox";
 import { Auth, Connection } from "home-assistant-js-websocket";
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property, state } from "lit/decorators";
 import { CastManager } from "../../../../src/cast/cast_manager";
 import {
   castSendShowLovelaceView,
@@ -24,6 +18,7 @@ import {
 import { atLeastVersion } from "../../../../src/common/config/version";
 import { toggleAttribute } from "../../../../src/common/dom/toggle_attribute";
 import "../../../../src/components/ha-icon";
+import "../../../../src/components/ha-svg-icon";
 import {
   getLegacyLovelaceCollection,
   getLovelaceCollection,
@@ -32,7 +27,6 @@ import {
 import "../../../../src/layouts/hass-loading-screen";
 import { generateDefaultViewConfig } from "../../../../src/panels/lovelace/common/generate-lovelace-config";
 import "./hc-layout";
-import "@material/mwc-button/mwc-button";
 
 @customElement("hc-cast")
 class HcCast extends LitElement {
@@ -42,9 +36,9 @@ class HcCast extends LitElement {
 
   @property() public castManager!: CastManager;
 
-  @internalProperty() private askWrite = false;
+  @state() private askWrite = false;
 
-  @internalProperty() private lovelaceConfig?: LovelaceConfig | null;
+  @state() private lovelaceConfig?: LovelaceConfig | null;
 
   protected render(): TemplateResult {
     if (this.lovelaceConfig === undefined) {
@@ -54,9 +48,7 @@ class HcCast extends LitElement {
     const error =
       this.castManager.castState === "NO_DEVICES_AVAILABLE"
         ? html`
-            <p>
-              There were no suitable Chromecast devices to cast to found.
-            </p>
+            <p>There were no suitable Chromecast devices to cast to found.</p>
           `
         : undefined;
 
@@ -83,7 +75,7 @@ class HcCast extends LitElement {
           ? html`
               <p class="center-item">
                 <mwc-button raised @click=${this._handleLaunch}>
-                  <ha-icon icon="hass:cast"></ha-icon>
+                  <ha-svg-icon .path=${mdiCast}></ha-svg-icon>
                   Start Casting
                 </mwc-button>
               </p>
@@ -121,7 +113,7 @@ class HcCast extends LitElement {
           ${this.castManager.status
             ? html`
                 <mwc-button @click=${this._handleLaunch}>
-                  <ha-icon icon="hass:cast-connected"></ha-icon>
+                  <ha-svg-icon .path=${mdiCastConnected}></ha-svg-icon>
                   Manage
                 </mwc-button>
               `
@@ -201,12 +193,12 @@ class HcCast extends LitElement {
       }
       this.connection.close();
       location.reload();
-    } catch (err) {
+    } catch (err: any) {
       alert("Unable to log out!");
     }
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       .center-item {
         display: flex;
@@ -243,7 +235,7 @@ class HcCast extends LitElement {
         color: var(--secondary-text-color);
       }
 
-      mwc-button ha-icon {
+      mwc-button ha-svg-icon {
         margin-right: 8px;
         height: 18px;
       }

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

@@ -1,4 +1,5 @@
 import "@material/mwc-button";
+import { mdiCastConnected, mdiCast } from "@mdi/js";
 import "@polymer/paper-input/paper-input";
 import {
   Auth,
@@ -11,22 +12,15 @@ import {
   getAuth,
   getAuthOptions,
 } from "home-assistant-js-websocket";
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  TemplateResult,
-  internalProperty,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
 import { CastManager, getCastManager } from "../../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../../src/cast/receiver_messages";
 import {
   loadTokens,
   saveTokens,
 } from "../../../../src/common/auth/token_storage";
-import "../../../../src/components/ha-icon";
+import "../../../../src/components/ha-svg-icon";
 import "../../../../src/layouts/hass-loading-screen";
 import { registerServiceWorker } from "../../../../src/util/register-service-worker";
 import "./hc-layout";
@@ -60,19 +54,19 @@ const INTRO = html`
 
 @customElement("hc-connect")
 export class HcConnect extends LitElement {
-  @internalProperty() private loading = false;
+  @state() private loading = false;
 
   // If we had stored credentials but we cannot connect,
   // show a screen asking retry or logout.
-  @internalProperty() private cannotConnect = false;
+  @state() private cannotConnect = false;
 
-  @internalProperty() private error?: string | TemplateResult;
+  @state() private error?: string | TemplateResult;
 
-  @internalProperty() private auth?: Auth;
+  @state() private auth?: Auth;
 
-  @internalProperty() private connection?: Connection;
+  @state() private connection?: Connection;
 
-  @internalProperty() private castManager?: CastManager | null;
+  @state() private castManager?: CastManager | null;
 
   private openDemo = false;
 
@@ -86,9 +80,7 @@ export class HcConnect extends LitElement {
           </div>
           <div class="card-actions">
             <a href="/">
-              <mwc-button>
-                Retry
-              </mwc-button>
+              <mwc-button> Retry </mwc-button>
             </a>
             <div class="spacer"></div>
             <mwc-button @click=${this._handleLogout}>Log out</mwc-button>
@@ -136,11 +128,11 @@ export class HcConnect extends LitElement {
           <div class="card-actions">
             <mwc-button @click=${this._handleDemo}>
               Show Demo
-              <ha-icon
-                .icon=${this.castManager.castState === "CONNECTED"
-                  ? "hass:cast-connected"
-                  : "hass:cast"}
-              ></ha-icon>
+              <ha-svg-icon
+                .path=${this.castManager.castState === "CONNECTED"
+                  ? mdiCastConnected
+                  : mdiCast}
+              ></ha-svg-icon>
             </mwc-button>
             <div class="spacer"></div>
             <mwc-button @click=${this._handleConnect}>Authorize</mwc-button>
@@ -221,7 +213,7 @@ export class HcConnect extends LitElement {
     let url: URL;
     try {
       url = new URL(value);
-    } catch (err) {
+    } catch (err: any) {
       this.error = "Invalid URL";
       return;
     }
@@ -249,7 +241,7 @@ export class HcConnect extends LitElement {
     try {
       this.loading = true;
       auth = await getAuth(options);
-    } catch (err) {
+    } catch (err: any) {
       if (init === "saved-tokens" && err === ERR_CANNOT_CONNECT) {
         this.cannotConnect = true;
         return;
@@ -268,7 +260,7 @@ export class HcConnect extends LitElement {
 
     try {
       conn = await createConnection({ auth });
-    } catch (err) {
+    } catch (err: any) {
       // In case of saved tokens, silently solve problems.
       if (init === "saved-tokens") {
         if (err === ERR_CANNOT_CONNECT) {
@@ -294,12 +286,12 @@ export class HcConnect extends LitElement {
     try {
       saveTokens(null);
       location.reload();
-    } catch (err) {
+    } catch (err: any) {
       alert("Unable to log out!");
     }
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       .card-content a {
         color: var(--primary-color);
@@ -316,7 +308,7 @@ export class HcConnect extends LitElement {
         color: darkred;
       }
 
-      mwc-button ha-icon {
+      mwc-button ha-svg-icon {
         margin-left: 8px;
       }
 

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

@@ -4,15 +4,8 @@ import {
   getUser,
   HassUser,
 } from "home-assistant-js-websocket";
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
 import "../../../../src/components/ha-card";
 
 @customElement("hc-layout")
@@ -69,7 +62,7 @@ class HcLayout extends LitElement {
     }
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: flex;

cast/src/media/entrypoint.ts

@@ -0,0 +1,22 @@
+const castContext = cast.framework.CastReceiverContext.getInstance();
+
+const playerManager = castContext.getPlayerManager();
+
+playerManager.setMessageInterceptor(
+  cast.framework.messages.MessageType.LOAD,
+  (loadRequestData) => {
+    const media = loadRequestData.media;
+    // Special handling if it came from Google Assistant
+    if (media.entity) {
+      media.contentId = media.entity;
+      media.streamType = cast.framework.messages.StreamType.LIVE;
+      media.contentType = "application/vnd.apple.mpegurl";
+      // @ts-ignore
+      media.hlsVideoSegmentFormat =
+        cast.framework.messages.HlsVideoSegmentFormat.FMP4;
+    }
+    return loadRequestData;
+  }
+);
+
+castContext.start();

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

@@ -5,8 +5,8 @@ import {
 import { castContext } from "../cast_context";
 
 export const castDemoLovelace: () => LovelaceConfig = () => {
-  const touchSupported = castContext.getDeviceCapabilities()
-    .touch_input_supported;
+  const touchSupported =
+    castContext.getDeviceCapabilities().touch_input_supported;
   return {
     views: [
       {

cast/src/receiver/entrypoint.ts

@@ -8,6 +8,9 @@ import { ReceivedMessage } from "./types";
 
 const lovelaceController = new HcMain();
 document.body.append(lovelaceController);
+lovelaceController.addEventListener("cast-view-changed", (ev) => {
+  playDummyMedia(ev.detail.title);
+});
 
 const mediaPlayer = document.createElement("cast-media-player");
 mediaPlayer.style.display = "none";
@@ -28,6 +31,31 @@ const setTouchControlsVisibility = (visible: boolean) => {
   }
 };
 
+let timeOut: number | undefined;
+
+const playDummyMedia = (viewTitle?: string) => {
+  const loadRequestData = new cast.framework.messages.LoadRequestData();
+  loadRequestData.autoplay = true;
+  loadRequestData.media = new cast.framework.messages.MediaInformation();
+  loadRequestData.media.contentId =
+    "https://cast.home-assistant.io/images/google-nest-hub.png";
+  loadRequestData.media.contentType = "image/jpeg";
+  loadRequestData.media.streamType = cast.framework.messages.StreamType.NONE;
+  const metadata = new cast.framework.messages.GenericMediaMetadata();
+  metadata.title = viewTitle;
+  loadRequestData.media.metadata = metadata;
+
+  loadRequestData.requestId = 0;
+  playerManager.load(loadRequestData);
+  if (timeOut) {
+    clearTimeout(timeOut);
+    timeOut = undefined;
+  }
+  if (castContext.getDeviceCapabilities().touch_input_supported) {
+    timeOut = window.setTimeout(() => playDummyMedia(viewTitle), 540000); // repeat every 9 minutes to keep it active (gets deactivated after 10 minutes)
+  }
+};
+
 const showLovelaceController = () => {
   mediaPlayer.style.display = "none";
   lovelaceController.style.display = "initial";
@@ -51,6 +79,7 @@ const showMediaPlayer = () => {
       --progress-color: #03a9f4;
       --splash-image: url('https://home-assistant.io/images/cast/splash.png');
       --splash-size: cover;
+      --background-color: #41bdf5;
     }
     `;
     document.head.appendChild(style);
@@ -63,22 +92,6 @@ options.customNamespaces = {
   [CAST_NS]: cast.framework.system.MessageType.JSON,
 };
 
-// The docs say we need to set options.touchScreenOptimizeApp = true
-// https://developers.google.com/cast/docs/caf_receiver/customize_ui#accessing_ui_controls
-// This doesn't work.
-// @ts-ignore
-options.touchScreenOptimizedApp = true;
-
-// The class reference say we can set a uiConfig in options to set it
-// https://developers.google.com/cast/docs/reference/caf_receiver/cast.framework.CastReceiverOptions#uiConfig
-// This doesn't work either.
-// @ts-ignore
-options.uiConfig = new cast.framework.ui.UiConfig();
-// @ts-ignore
-options.uiConfig.touchScreenOptimizedApp = true;
-
-castContext.setInactivityTimeout(86400); // 1 day
-
 castContext.addCustomMessageListener(
   CAST_NS,
   // @ts-ignore
@@ -103,6 +116,12 @@ const playerManager = castContext.getPlayerManager();
 playerManager.setMessageInterceptor(
   cast.framework.messages.MessageType.LOAD,
   (loadRequestData) => {
+    if (
+      loadRequestData.media.contentId ===
+      "https://cast.home-assistant.io/images/google-nest-hub.png"
+    ) {
+      return loadRequestData;
+    }
     // We received a play media command, hide Lovelace and show media player
     showMediaPlayer();
     const media = loadRequestData.media;

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

@@ -1,10 +1,5 @@
-import {
-  customElement,
-  html,
-  internalProperty,
-  property,
-  TemplateResult,
-} from "lit-element";
+import { html, TemplateResult } from "lit";
+import { customElement, property, state } from "lit/decorators";
 import { mockHistory } from "../../../../demo/src/stubs/history";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import {
@@ -21,7 +16,7 @@ import "./hc-lovelace";
 class HcDemo extends HassElement {
   @property({ attribute: false }) public lovelacePath!: string;
 
-  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
+  @state() private _lovelaceConfig?: LovelaceConfig;
 
   protected render(): TemplateResult {
     if (!this._lovelaceConfig) {
@@ -38,10 +33,10 @@ class HcDemo extends HassElement {
 
   protected firstUpdated(changedProps) {
     super.firstUpdated(changedProps);
-    this._initialize();
+    this._initializeHass();
   }
 
-  private async _initialize() {
+  private async _initializeHass() {
     const initial: Partial<MockHomeAssistant> = {
       // Override updateHass so that the correct hass lifecycle methods are called
       updateHass: (hassUpdate: Partial<HomeAssistant>) =>

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

@@ -1,12 +1,5 @@
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
 import { HomeAssistant } from "../../../../src/types";
 
 @customElement("hc-launch-screen")
@@ -29,7 +22,7 @@ class HcLaunchScreen extends LitElement {
     `;
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: block;

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

@@ -1,12 +1,6 @@
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
+import { fireEvent } from "../../../../src/common/dom/fire_event";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import { Lovelace } from "../../../../src/panels/lovelace/types";
 import "../../../../src/panels/lovelace/views/hui-view";
@@ -21,7 +15,7 @@ class HcLovelace extends LitElement {
 
   @property() public viewPath?: string | number;
 
-  public urlPath?: string | null;
+  @property() public urlPath: string | null = null;
 
   protected render(): TemplateResult {
     const index = this._viewIndex;
@@ -37,7 +31,7 @@ class HcLovelace extends LitElement {
       config: this.lovelaceConfig,
       rawConfig: this.lovelaceConfig,
       editMode: false,
-      urlPath: this.urlPath!,
+      urlPath: this.urlPath,
       enableFullEditMode: () => undefined,
       mode: "storage",
       locale: this.hass.locale,
@@ -61,6 +55,21 @@ class HcLovelace extends LitElement {
       const index = this._viewIndex;
 
       if (index !== undefined) {
+        const dashboardTitle = this.lovelaceConfig.title || this.urlPath;
+
+        const viewTitle =
+          this.lovelaceConfig.views[index].title ||
+          this.lovelaceConfig.views[index].path;
+
+        fireEvent(this, "cast-view-changed", {
+          title:
+            dashboardTitle || viewTitle
+              ? `${dashboardTitle || ""}${
+                  dashboardTitle && viewTitle ? ": " : ""
+                }${viewTitle || ""}`
+              : undefined,
+        });
+
         const configBackground =
           this.lovelaceConfig.views[index].background ||
           this.lovelaceConfig.background;
@@ -91,7 +100,7 @@ class HcLovelace extends LitElement {
     return undefined;
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         min-height: 100vh;
@@ -108,8 +117,15 @@ class HcLovelace extends LitElement {
   }
 }
 
+export interface CastViewChanged {
+  title: string | undefined;
+}
+
 declare global {
   interface HTMLElementTagNameMap {
     "hc-lovelace": HcLovelace;
   }
+  interface HASSDomEvents {
+    "cast-view-changed": CastViewChanged;
+  }
 }

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

@@ -3,12 +3,8 @@ import {
   getAuth,
   UnsubscribeFunc,
 } from "home-assistant-js-websocket";
-import {
-  customElement,
-  html,
-  internalProperty,
-  TemplateResult,
-} from "lit-element";
+import { html, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
 import { CAST_NS } from "../../../../src/cast/const";
 import {
   ConnectMessage,
@@ -17,7 +13,11 @@ import {
   ShowDemoMessage,
   ShowLovelaceViewMessage,
 } from "../../../../src/cast/receiver_messages";
-import { ReceiverStatusMessage } from "../../../../src/cast/sender_messages";
+import {
+  ReceiverErrorCode,
+  ReceiverErrorMessage,
+  ReceiverStatusMessage,
+} from "../../../../src/cast/sender_messages";
 import { atLeastVersion } from "../../../../src/common/config/version";
 import { isNavigationClick } from "../../../../src/common/dom/is-navigation-click";
 import {
@@ -36,18 +36,18 @@ let resourcesLoaded = false;
 
 @customElement("hc-main")
 export class HcMain extends HassElement {
-  @internalProperty() private _showDemo = false;
+  @state() private _showDemo = false;
 
-  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
+  @state() private _lovelaceConfig?: LovelaceConfig;
 
-  @internalProperty() private _lovelacePath: string | number | null = null;
+  @state() private _lovelacePath: string | number | null = null;
 
-  @internalProperty() private _error?: string;
+  @state() private _error?: string;
+
+  @state() private _urlPath?: string | null;
 
   private _unsubLovelace?: UnsubscribeFunc;
 
-  private _urlPath?: string | null;
-
   public processIncomingMessage(msg: HassMessage) {
     if (msg.type === "connect") {
       this._handleConnectMessage(msg);
@@ -72,8 +72,10 @@ export class HcMain extends HassElement {
       !this._lovelaceConfig ||
       this._lovelacePath === null ||
       // Guard against part of HA not being loaded yet.
-      (this.hass &&
-        (!this.hass.states || !this.hass.config || !this.hass.services))
+      !this.hass ||
+      !this.hass.states ||
+      !this.hass.config ||
+      !this.hass.services
     ) {
       return html`
         <hc-launch-screen
@@ -111,6 +113,7 @@ export class HcMain extends HassElement {
         this._sendStatus();
       }
     });
+    this.addEventListener("dialog-closed", this._dialogClosed);
   }
 
   private _sendStatus(senderId?: string) {
@@ -122,7 +125,7 @@ export class HcMain extends HassElement {
 
     if (this.hass) {
       status.hassUrl = this.hass.auth.data.hassUrl;
-      status.lovelacePath = this._lovelacePath!;
+      status.lovelacePath = this._lovelacePath;
       status.urlPath = this._urlPath;
     }
 
@@ -135,6 +138,30 @@ export class HcMain extends HassElement {
     }
   }
 
+  private _sendError(
+    error_code: number,
+    error_message: string,
+    senderId?: string
+  ) {
+    const error: ReceiverErrorMessage = {
+      type: "receiver_error",
+      error_code,
+      error_message,
+    };
+
+    if (senderId) {
+      this.sendMessage(senderId, error);
+    } else {
+      for (const sender of castContext.getSenders()) {
+        this.sendMessage(sender.id, error);
+      }
+    }
+  }
+
+  private _dialogClosed = () => {
+    document.body.setAttribute("style", "overflow-y: auto !important");
+  };
+
   private async _handleGetStatusMessage(msg: GetStatusMessage) {
     this._sendStatus(msg.senderId!);
   }
@@ -152,15 +179,19 @@ export class HcMain extends HassElement {
           expires_in: 0,
         }),
       });
-    } catch (err) {
-      this._error = this._getErrorMessage(err);
+    } catch (err: any) {
+      const errorMessage = this._getErrorMessage(err);
+      this._error = errorMessage;
+      this._sendError(err, errorMessage);
       return;
     }
     let connection;
     try {
       connection = await createConnection({ auth });
-    } catch (err) {
-      this._error = this._getErrorMessage(err);
+    } catch (err: any) {
+      const errorMessage = this._getErrorMessage(err);
+      this._error = errorMessage;
+      this._sendError(err, errorMessage);
       return;
     }
     if (this.hass) {
@@ -172,24 +203,29 @@ export class HcMain extends HassElement {
   }
 
   private async _handleShowLovelaceMessage(msg: ShowLovelaceViewMessage) {
+    this._showDemo = false;
     // We should not get this command before we are connected.
     // Means a client got out of sync. Let's send status to them.
     if (!this.hass) {
       this._sendStatus(msg.senderId!);
       this._error = "Cannot show Lovelace because we're not connected.";
+      this._sendError(ReceiverErrorCode.NOT_CONNECTED, this._error);
       return;
     }
+    this._error = undefined;
     if (msg.urlPath === "lovelace") {
       msg.urlPath = null;
     }
+    this._lovelacePath = msg.viewPath;
     if (!this._unsubLovelace || this._urlPath !== msg.urlPath) {
       this._urlPath = msg.urlPath;
+      this._lovelaceConfig = undefined;
       if (this._unsubLovelace) {
         this._unsubLovelace();
       }
       const llColl = atLeastVersion(this.hass.connection.haVersion, 0, 107)
-        ? getLovelaceCollection(this.hass!.connection, msg.urlPath)
-        : getLegacyLovelaceCollection(this.hass!.connection);
+        ? getLovelaceCollection(this.hass.connection, msg.urlPath)
+        : getLegacyLovelaceCollection(this.hass.connection);
       // We first do a single refresh because we need to check if there is LL
       // configuration.
       try {
@@ -197,9 +233,17 @@ export class HcMain extends HassElement {
         this._unsubLovelace = llColl.subscribe((lovelaceConfig) =>
           this._handleNewLovelaceConfig(lovelaceConfig)
         );
-      } catch (err) {
-        // eslint-disable-next-line
-        console.log("Error fetching Lovelace configuration", err, msg);
+      } catch (err: any) {
+        if (
+          atLeastVersion(this.hass.connection.haVersion, 0, 107) &&
+          err.code !== "config_not_found"
+        ) {
+          // eslint-disable-next-line
+          console.log("Error fetching Lovelace configuration", err, msg);
+          this._error = `Error fetching Lovelace configuration: ${err.message}`;
+          this._sendError(ReceiverErrorCode.FETCH_CONFIG_FAILED, this._error);
+          return;
+        }
         // Generate a Lovelace config.
         this._unsubLovelace = () => undefined;
         await this._generateLovelaceConfig();
@@ -214,8 +258,6 @@ export class HcMain extends HassElement {
         loadLovelaceResources(resources, this.hass!.auth.data.hassUrl);
       }
     }
-    this._showDemo = false;
-    this._lovelacePath = msg.viewPath;
 
     this._sendStatus();
   }
@@ -236,7 +278,7 @@ export class HcMain extends HassElement {
   }
 
   private _handleNewLovelaceConfig(lovelaceConfig: LovelaceConfig) {
-    castContext.setApplicationState(lovelaceConfig.title!);
+    castContext.setApplicationState(lovelaceConfig.title || "");
     this._lovelaceConfig = lovelaceConfig;
   }
 

demo/src/configs/arsaboo/entities.ts

@@ -246,11 +246,15 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
 
     "light.living_room_lights": {
       entity_id: "light.living_room_lights",
-      state: "off",
+      state: "on",
       attributes: {
         min_mireds: 111,
         max_mireds: 400,
+        brightness: 175,
+        color_temp: 300,
+        supported_color_modes: ["brightness", "color_temp"],
         friendly_name: "Living Room Lights",
+        color_mode: "color_temp",
         supported_features: 55,
       },
     },
@@ -263,13 +267,27 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
     },
     "light.kitchen_lights": {
       entity_id: "light.kitchen_lights",
+      state: "on",
+      attributes: {
+        min_mireds: 111,
+        max_mireds: 400,
+        brightness: 200,
+        rgb_color: [255, 175, 96],
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "rgb",
+        friendly_name: "Kitchen Lights",
+        supported_features: 55,
+      },
+    },
+    "light.lifx5": {
+      entity_id: "light.lifx5",
       state: "off",
       attributes: {
-        friendly_name: "Kitchen Lights",
+        supported_color_modes: ["brightness"],
+        friendly_name: "Garage Lights",
         supported_features: 1,
       },
     },
-
     "sensor.plexspy": {
       entity_id: "sensor.plexspy",
       state: "0",
@@ -482,16 +500,6 @@ export const demoEntitiesArsaboo: DemoConfig["entities"] = (localize) =>
         icon: "hademo:history",
       },
     },
-    "light.lifx5": {
-      entity_id: "light.lifx5",
-      state: "on",
-      attributes: {
-        min_mireds: 111,
-        max_mireds: 400,
-        friendly_name: "Garage Lights",
-        supported_features: 55,
-      },
-    },
     "sensor.alok_to_home": {
       entity_id: "sensor.alok_to_home",
       state: "41",

demo/src/configs/arsaboo/lovelace.ts

@@ -29,6 +29,11 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
             },
           ],
         },
+        {
+          title: "Energy distribution today",
+          type: "energy-distribution",
+          link_dashboard: true,
+        },
         {
           type: "thermostat",
           entity: "climate.upstairs",
@@ -113,8 +118,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {
@@ -196,8 +200,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {
@@ -277,8 +280,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {
@@ -315,8 +317,7 @@ export const demoLovelaceArsaboo: DemoConfig["lovelace"] = (localize) => ({
                 on: "/assets/arsaboo/icons/light_bulb_on.png",
               },
               state_filter: {
-                on:
-                  "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
+                on: "brightness(130%) saturate(1.5) drop-shadow(0px 0px 10px gold)",
                 off: "brightness(80%) saturate(0.8)",
               },
               style: {

demo/src/configs/demo-configs.ts

@@ -1,5 +1,6 @@
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 import { Lovelace } from "../../../src/panels/lovelace/types";
+import { energyEntities } from "../stubs/entities";
 import { DemoConfig } from "./types";
 
 export const demoConfigs: Array<() => Promise<DemoConfig>> = [
@@ -12,9 +13,8 @@ export const demoConfigs: Array<() => Promise<DemoConfig>> = [
 // eslint-disable-next-line import/no-mutable-exports
 export let selectedDemoConfigIndex = 0;
 // eslint-disable-next-line import/no-mutable-exports
-export let selectedDemoConfig: Promise<DemoConfig> = demoConfigs[
-  selectedDemoConfigIndex
-]();
+export let selectedDemoConfig: Promise<DemoConfig> =
+  demoConfigs[selectedDemoConfigIndex]();
 
 export const setDemoConfig = async (
   hass: MockHomeAssistant,
@@ -28,6 +28,7 @@ export const setDemoConfig = async (
   selectedDemoConfig = confProm;
 
   hass.addEntities(config.entities(hass.localize), true);
+  hass.addEntities(energyEntities());
   lovelace.saveConfig(config.lovelace(hass.localize));
   hass.mockTheme(config.theme());
 };

demo/src/configs/teachingbirds/entities.ts

@@ -980,8 +980,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         icon: "mdi:account-off",
         custom_ui_state_card: "state-card-custom-ui",
         templates: {
-          icon:
-            "if (state === 'on') return 'mdi:account'; else if (state === 'off') return 'mdi:account-off';\n",
+          icon: "if (state === 'on') return 'mdi:account'; else if (state === 'off') return 'mdi:account-off';\n",
           icon_color:
             "if (state === 'on') return 'rgb(56, 150, 56)'; else if (state === 'off') return 'rgb(249, 251, 255)';\n",
         },
@@ -1005,8 +1004,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         icon: "mdi:account-multiple-minus",
         custom_ui_state_card: "state-card-custom-ui",
         templates: {
-          icon:
-            "if (state === 'on') return 'mdi:account-group'; else if (state === 'off') return 'mdi:account-multiple-minus';\n",
+          icon: "if (state === 'on') return 'mdi:account-group'; else if (state === 'off') return 'mdi:account-multiple-minus';\n",
           icon_color:
             "if (state === 'on') return 'rgb(56, 150, 56)'; else if (state === 'off') return 'rgb(249, 251, 255)';\n",
         },
@@ -1114,6 +1112,9 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         min_mireds: 153,
         max_mireds: 500,
         brightness: 63,
+        color_temp: 200,
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "color_temp",
         friendly_name: "Upstairs lights",
         supported_features: 63,
         custom_ui_state_card: "state-card-custom-ui",
@@ -1125,6 +1126,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         friendly_name: "Walk in closet lights",
         supported_features: 41,
+        supported_color_modes: ["brightness", "color_temp"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:wall-sconce",
       },
@@ -1136,6 +1138,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         brightness: 254,
         friendly_name: "Outdoor lights",
         supported_features: 41,
+        supported_color_modes: ["brightness"],
+        color_mode: "brightness",
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:wall-sconce",
       },
@@ -1148,6 +1152,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         max_mireds: 500,
         brightness: 128,
         color_temp: 366,
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "color_temp",
         effect_list: ["colorloop"],
         friendly_name: "Downstairs lights",
         supported_features: 63,
@@ -1307,6 +1313,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         min_mireds: 153,
         max_mireds: 500,
+        supported_color_modes: ["brightness", "color_temp"],
         is_deconz_group: false,
         friendly_name: "Bedside Lamp",
         supported_features: 63,
@@ -1320,6 +1327,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         min_mireds: 153,
         max_mireds: 500,
+        supported_color_modes: ["brightness", "color_temp"],
         is_deconz_group: false,
         friendly_name: "Floorlamp Reading Light",
         supported_features: 43,
@@ -1335,6 +1343,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         max_mireds: 500,
         brightness: 128,
         color_temp: 366,
+        supported_color_modes: ["brightness", "color_temp", "rgb"],
+        color_mode: "color_temp",
         effect_list: ["colorloop"],
         is_deconz_group: false,
         friendly_name: "Hallway window light",
@@ -1349,6 +1359,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         brightness: 77,
         is_deconz_group: false,
+        supported_color_modes: ["brightness"],
         friendly_name: "Isa Ceiling Light",
         supported_features: 41,
         custom_ui_state_card: "state-card-custom-ui",
@@ -1363,6 +1374,8 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         max_mireds: 500,
         brightness: 150,
         color_temp: 366,
+        supported_color_modes: ["brightness", "color_temp"],
+        color_mode: "color_temp",
         effect_list: ["colorloop"],
         is_deconz_group: false,
         friendly_name: "Floorlamp",
@@ -1377,6 +1390,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         friendly_name: "Bedroom Ceiling Light",
         supported_features: 41,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:ceiling-light",
       },
@@ -1387,6 +1401,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
       attributes: {
         friendly_name: "Nightlight",
         supported_features: 17,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:lamp",
       },
@@ -1753,6 +1768,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 2.2,
         friendly_name: "Upstairs Hallway Light",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:ceiling-light",
       },
@@ -1768,6 +1784,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 0,
         friendly_name: "Dining Room Light",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:ceiling-light",
       },
@@ -1783,6 +1800,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 0,
         friendly_name: "Living room Spotlights",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:track-light",
       },
@@ -1799,6 +1817,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 2.5,
         friendly_name: "Passage Lights",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:track-light",
       },
@@ -1843,6 +1862,7 @@ export const demoEntitiesTeachingbirds: DemoConfig["entities"] = () =>
         power_consumption: 37.4,
         friendly_name: "Kitchen Lights",
         supported_features: 33,
+        supported_color_modes: ["brightness"],
         custom_ui_state_card: "state-card-custom-ui",
         icon: "mdi:track-light",
       },

demo/src/configs/teachingbirds/lovelace.ts

@@ -440,57 +440,43 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
           type: "horizontal-stack",
         },
         {
+          type: "grid",
+          columns: 2,
           cards: [
             {
-              cards: [
-                {
-                  graph: "line",
-                  type: "sensor",
-                  entity: "sensor.temperature_bedroom",
-                },
-                {
-                  graph: "line",
-                  type: "sensor",
-                  name: "S's room",
-                  entity: "sensor.temperature_stefan",
-                },
-              ],
-              type: "horizontal-stack",
+              graph: "line",
+              type: "sensor",
+              entity: "sensor.temperature_bedroom",
             },
             {
-              cards: [
-                {
-                  graph: "line",
-                  type: "sensor",
-                  entity: "sensor.temperature_passage",
-                },
-                {
-                  graph: "line",
-                  type: "sensor",
-                  name: "Bathroom",
-                  entity: "sensor.temperature_downstairs_bathroom",
-                },
-              ],
-              type: "horizontal-stack",
+              graph: "line",
+              type: "sensor",
+              name: "S's room",
+              entity: "sensor.temperature_stefan",
             },
             {
-              cards: [
-                {
-                  graph: "line",
-                  type: "sensor",
-                  entity: "sensor.temperature_storage",
-                },
-                {
-                  graph: "line",
-                  type: "sensor",
-                  name: "Refrigerator",
-                  entity: "sensor.refrigerator",
-                },
-              ],
-              type: "horizontal-stack",
+              graph: "line",
+              type: "sensor",
+              entity: "sensor.temperature_passage",
+            },
+            {
+              graph: "line",
+              type: "sensor",
+              name: "Bathroom",
+              entity: "sensor.temperature_downstairs_bathroom",
+            },
+            {
+              graph: "line",
+              type: "sensor",
+              entity: "sensor.temperature_storage",
+            },
+            {
+              graph: "line",
+              type: "sensor",
+              name: "Refrigerator",
+              entity: "sensor.refrigerator",
             },
           ],
-          type: "vertical-stack",
         },
         {
           entities: [

demo/src/custom-cards/card-modder.js

@@ -1,5 +1,5 @@
 /* eslint-disable */
-import { LitElement } from "lit-element";
+import { LitElement } from "lit";
 import "./card-tools";
 
 class CardModder extends LitElement {

demo/src/custom-cards/card-tools.js

@@ -1,5 +1,5 @@
 /* eslint-disable */
-import { html, LitElement } from "lit-element";
+import { html, LitElement } from "lit";
 
 if (!window.cardTools) {
   const version = 0.2;

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

@@ -1,12 +1,6 @@
-import {
-  css,
-  CSSResult,
-  customElement,
-  html,
-  internalProperty,
-  LitElement,
-  TemplateResult,
-} from "lit-element";
+import { mdiTelevision } from "@mdi/js";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { customElement, state } from "lit/decorators";
 import { CastManager } from "../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../src/cast/receiver_messages";
 import "../../../src/components/ha-icon";
@@ -20,7 +14,7 @@ import { HomeAssistant } from "../../../src/types";
 class CastDemoRow extends LitElement implements LovelaceRow {
   public hass!: HomeAssistant;
 
-  @internalProperty() private _castManager?: CastManager | null;
+  @state() private _castManager?: CastManager | null;
 
   public setConfig(_config: CastConfig): void {
     // No config possible.
@@ -34,7 +28,7 @@ class CastDemoRow extends LitElement implements LovelaceRow {
       return html``;
     }
     return html`
-      <ha-icon icon="hademo:television"></ha-icon>
+      <ha-svg-icon .path=${mdiTelevision}></ha-svg-icon>
       <div class="flex">
         <div class="name">Show Chromecast interface</div>
         <google-cast-launcher></google-cast-launcher>
@@ -73,13 +67,13 @@ class CastDemoRow extends LitElement implements LovelaceRow {
     this.style.display = this._castManager ? "" : "none";
   }
 
-  static get styles(): CSSResult {
+  static get styles(): CSSResultGroup {
     return css`
       :host {
         display: flex;
         align-items: center;
       }
-      ha-icon {
+      ha-svg-icon {
         padding: 8px;
         color: var(--paper-item-icon-color);
       }

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

@@ -1,14 +1,7 @@
 import "@material/mwc-button";
-import {
-  css,
-  CSSResult,
-  html,
-  internalProperty,
-  LitElement,
-  property,
-  TemplateResult,
-} from "lit-element";
-import { until } from "lit-html/directives/until";
+import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { property, state } from "lit/decorators";
+import { until } from "lit/directives/until";
 import "../../../src/components/ha-card";
 import "../../../src/components/ha-circular-progress";
 import { LovelaceCardConfig } from "../../../src/data/lovelace";
@@ -26,7 +19,7 @@ export class HADemoCard extends LitElement implements LovelaceCard {
 
   @property({ attribute: false }) public hass!: MockHomeAssistant;
 
-  @internalProperty() private _switching?: boolean;
+  @state() private _switching = false;
 
   private _hidden = localStorage.hide_demo_card;
 
@@ -34,12 +27,7 @@ export class HADemoCard extends LitElement implements LovelaceCard {
     return this._hidden ? 0 : 2;
   }
 
-  public setConfig(
-    // @ts-ignore
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    config: LovelaceCardConfig
-    // eslint-disable-next-line @typescript-eslint/no-empty-function
-  ) {}
+  public setConfig(_config: LovelaceCardConfig) {}
 
   protected render(): TemplateResult {
     if (this._hidden) {
@@ -56,7 +44,7 @@ export class HADemoCard extends LitElement implements LovelaceCard {
                     (conf) => html`
                       ${conf.name}
                       <small>
-                        <a target="_blank" href="${conf.authorUrl}">
+                        <a target="_blank" href=${conf.authorUrl}>
                           ${this.hass.localize(
                             "ui.panel.page-demo.cards.demo.demo_by",
                             "name",
@@ -106,14 +94,14 @@ export class HADemoCard extends LitElement implements LovelaceCard {
     this._switching = true;
     try {
       await setDemoConfig(this.hass, this.lovelace!, index);
-    } catch (err) {
+    } catch (err: any) {
       alert("Failed to switch config :-(");
     } finally {
       this._switching = false;
     }
   }
 
-  static get styles(): CSSResult[] {
+  static get styles(): CSSResultGroup {
     return [
       css`
         a {

demo/src/entrypoint.ts

@@ -1,5 +1,3 @@
-import "@polymer/polymer/lib/elements/dom-if";
-import "@polymer/polymer/lib/elements/dom-repeat";
 import "../../src/resources/ha-style";
 import "../../src/resources/roboto";
 import "../../src/resources/safari-14-attachshadow-patch";

demo/src/ha-demo.ts

@@ -20,11 +20,14 @@ import { mockShoppingList } from "./stubs/shopping_list";
 import { mockSystemLog } from "./stubs/system_log";
 import { mockTemplate } from "./stubs/template";
 import { mockTranslations } from "./stubs/translations";
+import { mockEnergy } from "./stubs/energy";
+import { mockConfig } from "./stubs/config";
+import { energyEntities } from "./stubs/entities";
 
 class HaDemo extends HomeAssistantAppEl {
-  protected async _initialize() {
+  protected async _initializeHass() {
     const initial: Partial<MockHomeAssistant> = {
-      panelUrl: (this as any).panelUrl,
+      panelUrl: (this as any)._panelUrl,
       // Override updateHass so that the correct hass lifecycle methods are called
       updateHass: (hassUpdate: Partial<HomeAssistant>) =>
         this._updateHass(hassUpdate),
@@ -47,8 +50,12 @@ class HaDemo extends HomeAssistantAppEl {
     mockEvents(hass);
     mockMediaPlayer(hass);
     mockFrontend(hass);
+    mockEnergy(hass);
+    mockConfig(hass);
     mockPersistentNotification(hass);
 
+    hass.addEntities(energyEntities());
+
     // Once config is loaded AND localize, set entities and apply theme.
     Promise.all([selectedDemoConfig, localizePromise]).then(
       ([conf, localize]) => {
@@ -70,7 +77,7 @@ class HaDemo extends HomeAssistantAppEl {
         }
 
         e.preventDefault();
-        navigate(this, href);
+        navigate(href);
       },
       { capture: true }
     );

demo/src/stubs/area_registry.ts

@@ -0,0 +1,7 @@
+import { AreaRegistryEntry } from "../../../src/data/area_registry";
+import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockAreaRegistry = (
+  hass: MockHomeAssistant,
+  data: AreaRegistryEntry[] = []
+) => hass.mockWS("config/area_registry/list", () => data);

demo/src/stubs/config.ts

@@ -0,0 +1,41 @@
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockConfig = (hass: MockHomeAssistant) => {
+  hass.mockAPI("config/config_entries/entry", () => [
+    {
+      entry_id: "co2signal",
+      domain: "co2signal",
+      title: "CO2 Signal",
+      source: "user",
+      state: "loaded",
+      supports_options: false,
+      supports_unload: true,
+      pref_disable_new_entities: false,
+      pref_disable_polling: false,
+      disabled_by: null,
+      reason: null,
+    },
+  ]);
+  hass.mockWS("config/entity_registry/list", () => [
+    {
+      config_entry_id: "co2signal",
+      device_id: "co2signal",
+      area_id: null,
+      disabled_by: null,
+      entity_id: "sensor.co2_intensity",
+      name: null,
+      icon: null,
+      platform: "co2signal",
+    },
+    {
+      config_entry_id: "co2signal",
+      device_id: "co2signal",
+      area_id: null,
+      disabled_by: null,
+      entity_id: "sensor.grid_fossil_fuel_percentage",
+      name: null,
+      icon: null,
+      platform: "co2signal",
+    },
+  ]);
+};

demo/src/stubs/device_registry.ts

@@ -0,0 +1,7 @@
+import { DeviceRegistryEntry } from "../../../src/data/device_registry";
+import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockDeviceRegistry = (
+  hass: MockHomeAssistant,
+  data: DeviceRegistryEntry[] = []
+) => hass.mockWS("config/device_registry/list", () => data);

demo/src/stubs/energy.ts

@@ -0,0 +1,137 @@
+import { format, startOfToday, startOfTomorrow } from "date-fns";
+import { EnergySolarForecasts } from "../../../src/data/energy";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockEnergy = (hass: MockHomeAssistant) => {
+  hass.mockWS("energy/get_prefs", () => ({
+    energy_sources: [
+      {
+        type: "grid",
+        flow_from: [
+          {
+            stat_energy_from: "sensor.energy_consumption_tarif_1",
+            stat_cost: "sensor.energy_consumption_tarif_1_cost",
+            entity_energy_from: "sensor.energy_consumption_tarif_1",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+          {
+            stat_energy_from: "sensor.energy_consumption_tarif_2",
+            stat_cost: "sensor.energy_consumption_tarif_2_cost",
+            entity_energy_from: "sensor.energy_consumption_tarif_2",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+        ],
+        flow_to: [
+          {
+            stat_energy_to: "sensor.energy_production_tarif_1",
+            stat_compensation: "sensor.energy_production_tarif_1_compensation",
+            entity_energy_to: "sensor.energy_production_tarif_1",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+          {
+            stat_energy_to: "sensor.energy_production_tarif_2",
+            stat_compensation: "sensor.energy_production_tarif_2_compensation",
+            entity_energy_to: "sensor.energy_production_tarif_2",
+            entity_energy_price: null,
+            number_energy_price: null,
+          },
+        ],
+        cost_adjustment_day: 0,
+      },
+      {
+        type: "solar",
+        stat_energy_from: "sensor.solar_production",
+        config_entry_solar_forecast: ["solar_forecast"],
+      },
+      /* {
+        type: "battery",
+        stat_energy_from: "sensor.battery_output",
+        stat_energy_to: "sensor.battery_input",
+      }, */
+      {
+        type: "gas",
+        stat_energy_from: "sensor.energy_gas",
+        stat_cost: "sensor.energy_gas_cost",
+        entity_energy_from: "sensor.energy_gas",
+        entity_energy_price: null,
+        number_energy_price: null,
+      },
+    ],
+    device_consumption: [
+      {
+        stat_consumption: "sensor.energy_car",
+      },
+      {
+        stat_consumption: "sensor.energy_ac",
+      },
+      {
+        stat_consumption: "sensor.energy_washing_machine",
+      },
+      {
+        stat_consumption: "sensor.energy_dryer",
+      },
+      {
+        stat_consumption: "sensor.energy_heat_pump",
+      },
+      {
+        stat_consumption: "sensor.energy_boiler",
+      },
+    ],
+  }));
+  hass.mockWS("energy/info", () => ({ cost_sensors: [] }));
+  hass.mockWS("energy/fossil_energy_consumption", ({ period }) => ({
+    start: period === "month" ? 250 : period === "day" ? 10 : 2,
+  }));
+  const todayString = format(startOfToday(), "yyyy-MM-dd");
+  const tomorrowString = format(startOfTomorrow(), "yyyy-MM-dd");
+  hass.mockWS(
+    "energy/solar_forecast",
+    (): EnergySolarForecasts => ({
+      solar_forecast: {
+        wh_hours: {
+          [`${todayString}T06:00:00`]: 0,
+          [`${todayString}T06:23:00`]: 6,
+          [`${todayString}T06:45:00`]: 39,
+          [`${todayString}T07:00:00`]: 28,
+          [`${todayString}T08:00:00`]: 208,
+          [`${todayString}T09:00:00`]: 352,
+          [`${todayString}T10:00:00`]: 544,
+          [`${todayString}T11:00:00`]: 748,
+          [`${todayString}T12:00:00`]: 1259,
+          [`${todayString}T13:00:00`]: 1361,
+          [`${todayString}T14:00:00`]: 1373,
+          [`${todayString}T15:00:00`]: 1370,
+          [`${todayString}T16:00:00`]: 1186,
+          [`${todayString}T17:00:00`]: 937,
+          [`${todayString}T18:00:00`]: 652,
+          [`${todayString}T19:00:00`]: 370,
+          [`${todayString}T20:00:00`]: 155,
+          [`${todayString}T21:48:00`]: 24,
+          [`${todayString}T22:36:00`]: 0,
+          [`${tomorrowString}T06:01:00`]: 0,
+          [`${tomorrowString}T06:23:00`]: 9,
+          [`${tomorrowString}T06:45:00`]: 47,
+          [`${tomorrowString}T07:00:00`]: 48,
+          [`${tomorrowString}T08:00:00`]: 473,
+          [`${tomorrowString}T09:00:00`]: 827,
+          [`${tomorrowString}T10:00:00`]: 1153,
+          [`${tomorrowString}T11:00:00`]: 1413,
+          [`${tomorrowString}T12:00:00`]: 1590,
+          [`${tomorrowString}T13:00:00`]: 1652,
+          [`${tomorrowString}T14:00:00`]: 1612,
+          [`${tomorrowString}T15:00:00`]: 1438,
+          [`${tomorrowString}T16:00:00`]: 1149,
+          [`${tomorrowString}T17:00:00`]: 830,
+          [`${tomorrowString}T18:00:00`]: 542,
+          [`${tomorrowString}T19:00:00`]: 311,
+          [`${tomorrowString}T20:00:00`]: 140,
+          [`${tomorrowString}T21:47:00`]: 22,
+          [`${tomorrowString}T22:34:00`]: 0,
+        },
+      },
+    })
+  );
+};

demo/src/stubs/entities.ts

@@ -0,0 +1,178 @@
+import { convertEntities } from "../../../src/fake_data/entity";
+
+export const energyEntities = () =>
+  convertEntities({
+    "sensor.grid_fossil_fuel_percentage": {
+      entity_id: "sensor.grid_fossil_fuel_percentage",
+      state: "88.6",
+      attributes: {
+        unit_of_measurement: "%",
+      },
+    },
+    "sensor.solar_production": {
+      entity_id: "sensor.solar_production",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Solar",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.battery_input": {
+      entity_id: "sensor.battery_input",
+      state: "4",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Battery Input",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.battery_output": {
+      entity_id: "sensor.battery_output",
+      state: "3",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Battery Output",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_consumption_tarif_1": {
+      entity_id: "sensor.energy_consumption_tarif_1	",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Grid consumption low tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_consumption_tarif_2": {
+      entity_id: "sensor.energy_consumption_tarif_2",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Grid consumption high tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_production_tarif_1": {
+      entity_id: "sensor.energy_production_tarif_1",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Returned to grid low tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_production_tarif_2": {
+      entity_id: "sensor.energy_production_tarif_2",
+      state: "88.6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Returned to grid high tariff",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_consumption_tarif_1_cost": {
+      entity_id: "sensor.energy_consumption_tarif_1_cost",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_consumption_tarif_2_cost": {
+      entity_id: "sensor.energy_consumption_tarif_2_cost",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_production_tarif_1_compensation": {
+      entity_id: "sensor.energy_production_tarif_1_compensation",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_production_tarif_2_compensation": {
+      entity_id: "sensor.energy_production_tarif_2_compensation",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_gas_cost": {
+      entity_id: "sensor.energy_gas_cost",
+      state: "2",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        unit_of_measurement: "EUR",
+      },
+    },
+    "sensor.energy_gas": {
+      entity_id: "sensor.energy_gas",
+      state: "4",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Gas",
+        unit_of_measurement: "m³",
+      },
+    },
+    "sensor.energy_car": {
+      entity_id: "sensor.energy_car",
+      state: "4",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Electric car",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_ac": {
+      entity_id: "sensor.energy_ac",
+      state: "3",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Air conditioning",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_washing_machine": {
+      entity_id: "sensor.energy_washing_machine",
+      state: "6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Washing machine",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_dryer": {
+      entity_id: "sensor.energy_dryer",
+      state: "5.5",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Dryer",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_heat_pump": {
+      entity_id: "sensor.energy_heat_pump",
+      state: "6",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Heat pump",
+        unit_of_measurement: "kWh",
+      },
+    },
+    "sensor.energy_boiler": {
+      entity_id: "sensor.energy_boiler",
+      state: "7",
+      attributes: {
+        last_reset: "1970-01-01T00:00:00:00+00",
+        friendly_name: "Boiler",
+        unit_of_measurement: "kWh",
+      },
+    },
+  });

demo/src/stubs/entity_registry.ts

@@ -0,0 +1,7 @@
+import { EntityRegistryEntry } from "../../../src/data/entity_registry";
+import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockEntityRegistry = (
+  hass: MockHomeAssistant,
+  data: EntityRegistryEntry[] = []
+) => hass.mockWS("config/entity_registry/list", () => data);

demo/src/stubs/hassio_supervisor.ts

@@ -0,0 +1,59 @@
+import { HassioSupervisorInfo } from "../../../src/data/hassio/supervisor";
+import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+
+export const mockHassioSupervisor = (hass: MockHomeAssistant) => {
+  hass.config.components.push("hassio");
+  hass.mockWS("supervisor/api", (msg) => {
+    if (msg.endpoint === "/supervisor/info") {
+      const data: HassioSupervisorInfo = {
+        version: "2021.10.dev0805",
+        version_latest: "2021.10.dev0806",
+        update_available: true,
+        channel: "dev",
+        arch: "aarch64",
+        supported: true,
+        healthy: true,
+        ip_address: "172.30.32.2",
+        wait_boot: 5,
+        timezone: "America/Los_Angeles",
+        logging: "info",
+        debug: false,
+        debug_block: false,
+        diagnostics: true,
+        addons: [
+          {
+            name: "Visual Studio Code",
+            slug: "a0d7b954_vscode",
+            description:
+              "Fully featured VSCode experience, to edit your HA config in the browser, including auto-completion!",
+            state: "started",
+            version: "3.6.2",
+            version_latest: "3.6.2",
+            update_available: false,
+            repository: "a0d7b954",
+            icon: true,
+            logo: true,
+          },
+          {
+            name: "Z-Wave JS",
+            slug: "core_zwave_js",
+            description:
+              "Control a ZWave network with Home Assistant Z-Wave JS",
+            state: "started",
+            version: "0.1.45",
+            version_latest: "0.1.45",
+            update_available: false,
+            repository: "core",
+            icon: true,
+            logo: true,
+          },
+        ] as any,
+        addons_repositories: [
+          "https://github.com/hassio-addons/repository",
+        ] as any,
+      };
+      return data;
+    }
+    return Promise.reject(`${msg.method} ${msg.endpoint} is not implemented`);
+  });
+};

demo/src/stubs/history.ts

@@ -1,4 +1,12 @@
+import {
+  addDays,
+  addHours,
+  addMonths,
+  differenceInHours,
+  endOfDay,
+} from "date-fns";
 import { HassEntity } from "home-assistant-js-websocket";
+import { StatisticValue } from "../../../src/data/history";
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 interface HistoryQueryParams {
@@ -64,17 +72,335 @@ const generateHistory = (state, deltas) => {
 
 const incrementalUnits = ["clients", "queries", "ads"];
 
+const generateMeanStatistics = (
+  id: string,
+  start: Date,
+  end: Date,
+  period: "5minute" | "hour" | "day" | "month" = "hour",
+  initValue: number,
+  maxDiff: number
+) => {
+  const statistics: StatisticValue[] = [];
+  let currentDate = new Date(start);
+  currentDate.setMinutes(0, 0, 0);
+  let lastVal = initValue;
+  const now = new Date();
+  while (end > currentDate && currentDate < now) {
+    const delta = Math.random() * maxDiff;
+    const mean = lastVal + delta;
+    statistics.push({
+      statistic_id: id,
+      start: currentDate.toISOString(),
+      end: currentDate.toISOString(),
+      mean,
+      min: mean - Math.random() * maxDiff,
+      max: mean + Math.random() * maxDiff,
+      last_reset: "1970-01-01T00:00:00+00:00",
+      state: mean,
+      sum: null,
+    });
+    lastVal = mean;
+    currentDate =
+      period === "day"
+        ? addDays(currentDate, 1)
+        : period === "month"
+        ? addMonths(currentDate, 1)
+        : addHours(currentDate, 1);
+  }
+  return statistics;
+};
+
+const generateSumStatistics = (
+  id: string,
+  start: Date,
+  end: Date,
+  period: "5minute" | "hour" | "day" | "month" = "hour",
+  initValue: number,
+  maxDiff: number
+) => {
+  const statistics: StatisticValue[] = [];
+  let currentDate = new Date(start);
+  currentDate.setMinutes(0, 0, 0);
+  let sum = initValue;
+  const now = new Date();
+  while (end > currentDate && currentDate < now) {
+    const add = Math.random() * maxDiff;
+    sum += add;
+    statistics.push({
+      statistic_id: id,
+      start: currentDate.toISOString(),
+      end: currentDate.toISOString(),
+      mean: null,
+      min: null,
+      max: null,
+      last_reset: "1970-01-01T00:00:00+00:00",
+      state: initValue + sum,
+      sum,
+    });
+    currentDate =
+      period === "day"
+        ? addDays(currentDate, 1)
+        : period === "month"
+        ? addMonths(currentDate, 1)
+        : addHours(currentDate, 1);
+  }
+  return statistics;
+};
+
+const generateCurvedStatistics = (
+  id: string,
+  start: Date,
+  end: Date,
+  _period: "5minute" | "hour" | "day" | "month" = "hour",
+  initValue: number,
+  maxDiff: number,
+  metered: boolean
+) => {
+  const statistics: StatisticValue[] = [];
+  let currentDate = new Date(start);
+  currentDate.setMinutes(0, 0, 0);
+  let sum = initValue;
+  const hours = differenceInHours(end, start) - 1;
+  let i = 0;
+  let half = false;
+  const now = new Date();
+  while (end > currentDate && currentDate < now) {
+    const add = Math.random() * maxDiff;
+    sum += i * add;
+    statistics.push({
+      statistic_id: id,
+      start: currentDate.toISOString(),
+      end: currentDate.toISOString(),
+      mean: null,
+      min: null,
+      max: null,
+      last_reset: "1970-01-01T00:00:00+00:00",
+      state: initValue + sum,
+      sum: metered ? sum : null,
+    });
+    currentDate = addHours(currentDate, 1);
+    if (!half && i > hours / 2) {
+      half = true;
+    }
+    i += half ? -1 : 1;
+  }
+  return statistics;
+};
+
+const statisticsFunctions: Record<
+  string,
+  (
+    id: string,
+    start: Date,
+    end: Date,
+    period: "5minute" | "hour" | "day" | "month"
+  ) => StatisticValue[]
+> = {
+  "sensor.energy_consumption_tarif_1": (
+    id: string,
+    start: Date,
+    end: Date,
+    period = "hour"
+  ) => {
+    if (period !== "hour") {
+      return generateSumStatistics(
+        id,
+        start,
+        end,
+        period,
+        0,
+        period === "day" ? 17 : 504
+      );
+    }
+    const morningEnd = new Date(start.getTime() + 10 * 60 * 60 * 1000);
+    const morningLow = generateSumStatistics(
+      id,
+      start,
+      morningEnd,
+      period,
+      0,
+      0.7
+    );
+    const eveningStart = new Date(start.getTime() + 20 * 60 * 60 * 1000);
+    const morningFinalVal = morningLow.length
+      ? morningLow[morningLow.length - 1].sum!
+      : 0;
+    const empty = generateSumStatistics(
+      id,
+      morningEnd,
+      eveningStart,
+      period,
+      morningFinalVal,
+      0
+    );
+    const eveningLow = generateSumStatistics(
+      id,
+      eveningStart,
+      end,
+      period,
+      morningFinalVal,
+      0.7
+    );
+    return [...morningLow, ...empty, ...eveningLow];
+  },
+  "sensor.energy_consumption_tarif_2": (
+    id: string,
+    start: Date,
+    end: Date,
+    period = "hour"
+  ) => {
+    if (period !== "hour") {
+      return generateSumStatistics(
+        id,
+        start,
+        end,
+        period,
+        0,
+        period === "day" ? 17 : 504
+      );
+    }
+    const morningEnd = new Date(start.getTime() + 9 * 60 * 60 * 1000);
+    const eveningStart = new Date(start.getTime() + 20 * 60 * 60 * 1000);
+    const highTarif = generateSumStatistics(
+      id,
+      morningEnd,
+      eveningStart,
+      period,
+      0,
+      0.3
+    );
+    const highTarifFinalVal = highTarif.length
+      ? highTarif[highTarif.length - 1].sum!
+      : 0;
+    const morning = generateSumStatistics(id, start, morningEnd, period, 0, 0);
+    const evening = generateSumStatistics(
+      id,
+      eveningStart,
+      end,
+      period,
+      highTarifFinalVal,
+      0
+    );
+    return [...morning, ...highTarif, ...evening];
+  },
+  "sensor.energy_production_tarif_1": (id, start, end, period = "hour") =>
+    generateSumStatistics(id, start, end, period, 0, 0),
+  "sensor.energy_production_tarif_1_compensation": (
+    id,
+    start,
+    end,
+    period = "hour"
+  ) => generateSumStatistics(id, start, end, period, 0, 0),
+  "sensor.energy_production_tarif_2": (id, start, end, period = "hour") => {
+    if (period !== "hour") {
+      return generateSumStatistics(
+        id,
+        start,
+        end,
+        period,
+        0,
+        period === "day" ? 17 : 504
+      );
+    }
+    const productionStart = new Date(start.getTime() + 9 * 60 * 60 * 1000);
+    const productionEnd = new Date(start.getTime() + 21 * 60 * 60 * 1000);
+    const dayEnd = new Date(endOfDay(productionEnd));
+    const production = generateCurvedStatistics(
+      id,
+      productionStart,
+      productionEnd,
+      period,
+      0,
+      0.15,
+      true
+    );
+    const productionFinalVal = production.length
+      ? production[production.length - 1].sum!
+      : 0;
+    const morning = generateSumStatistics(
+      id,
+      start,
+      productionStart,
+      period,
+      0,
+      0
+    );
+    const evening = generateSumStatistics(
+      id,
+      productionEnd,
+      dayEnd,
+      period,
+      productionFinalVal,
+      0
+    );
+    const rest = generateSumStatistics(
+      id,
+      dayEnd,
+      end,
+      period,
+      productionFinalVal,
+      1
+    );
+    return [...morning, ...production, ...evening, ...rest];
+  },
+  "sensor.solar_production": (id, start, end, period = "hour") => {
+    if (period !== "hour") {
+      return generateSumStatistics(
+        id,
+        start,
+        end,
+        period,
+        0,
+        period === "day" ? 17 : 504
+      );
+    }
+    const productionStart = new Date(start.getTime() + 7 * 60 * 60 * 1000);
+    const productionEnd = new Date(start.getTime() + 23 * 60 * 60 * 1000);
+    const dayEnd = new Date(endOfDay(productionEnd));
+    const production = generateCurvedStatistics(
+      id,
+      productionStart,
+      productionEnd,
+      period,
+      0,
+      0.3,
+      true
+    );
+    const productionFinalVal = production.length
+      ? production[production.length - 1].sum!
+      : 0;
+    const morning = generateSumStatistics(
+      id,
+      start,
+      productionStart,
+      period,
+      0,
+      0
+    );
+    const evening = generateSumStatistics(
+      id,
+      productionEnd,
+      dayEnd,
+      period,
+      productionFinalVal,
+      0
+    );
+    const rest = generateSumStatistics(
+      id,
+      dayEnd,
+      end,
+      period,
+      productionFinalVal,
+      2
+    );
+    return [...morning, ...production, ...evening, ...rest];
+  },
+};
+
 export const mockHistory = (mockHass: MockHomeAssistant) => {
   mockHass.mockAPI(
     new RegExp("history/period/.+"),
-    (
-      hass,
-      // @ts-ignore
-      method,
-      path,
-      // @ts-ignore
-      parameters
-    ) => {
+    (hass, _method, path, _parameters) => {
       const params = parseQuery<HistoryQueryParams>(path.split("?")[1]);
       const entities = params.filter_entity_id.split(",");
 
@@ -95,7 +421,7 @@ export const mockHistory = (mockHass: MockHomeAssistant) => {
         const numberState = Number(state.state);
 
         if (isNaN(numberState)) {
-          // eslint-disable-next-line
+          // eslint-disable-next-line no-console
           console.log(
             "Ignoring state with unparsable state but with a unit",
             entityId,
@@ -140,4 +466,42 @@ export const mockHistory = (mockHass: MockHomeAssistant) => {
       return results;
     }
   );
+  mockHass.mockWS("history/list_statistic_ids", () => []);
+  mockHass.mockWS(
+    "history/statistics_during_period",
+    ({ statistic_ids, start_time, end_time, period }, hass) => {
+      const start = new Date(start_time);
+      const end = end_time ? new Date(end_time) : new Date();
+
+      const statistics: Record<string, StatisticValue[]> = {};
+
+      statistic_ids.forEach((id: string) => {
+        if (id in statisticsFunctions) {
+          statistics[id] = statisticsFunctions[id](id, start, end, period);
+        } else {
+          const entityState = hass.states[id];
+          const state = entityState ? Number(entityState.state) : 1;
+          statistics[id] =
+            entityState && "last_reset" in entityState.attributes
+              ? generateSumStatistics(
+                  id,
+                  start,
+                  end,
+                  period,
+                  state,
+                  state * (state > 80 ? 0.01 : 0.05)
+                )
+              : generateMeanStatistics(
+                  id,
+                  start,
+                  end,
+                  period,
+                  state,
+                  state * (state > 80 ? 0.05 : 0.1)
+                );
+        }
+      });
+      return statistics;
+    }
+  );
 };

demo/src/stubs/lovelace.ts

@@ -10,10 +10,9 @@ export const mockLovelace = (
   localizePromise: Promise<LocalizeFunc>
 ) => {
   hass.mockWS("lovelace/config", () =>
-    Promise.all([
-      selectedDemoConfig,
-      localizePromise,
-    ]).then(([config, localize]) => config.lovelace(localize))
+    Promise.all([selectedDemoConfig, localizePromise]).then(
+      ([config, localize]) => config.lovelace(localize)
+    )
   );
 
   hass.mockWS("lovelace/config/save", () => Promise.resolve());
@@ -24,9 +23,9 @@ customElements.whenDefined("hui-view").then(() => {
   // eslint-disable-next-line
   const HUIView = customElements.get("hui-view");
   // Patch HUI-VIEW to make the lovelace object available to the demo card
-  const oldCreateCard = HUIView.prototype.createCardElement;
+  const oldCreateCard = HUIView!.prototype.createCardElement;
 
-  HUIView.prototype.createCardElement = function (config) {
+  HUIView!.prototype.createCardElement = function (config) {
     const el = oldCreateCard.call(this, config);
     if (el.tagName === "HA-DEMO-CARD") {
       (el as HADemoCard).lovelace = this.lovelace;

demo/src/stubs/template.ts

@@ -6,7 +6,7 @@ export const mockTemplate = (hass: MockHomeAssistant) => {
       body: { message: "Template dev tool does not work in the demo." },
     })
   );
-  hass.mockWS("render_template", (msg, onChange) => {
+  hass.mockWS("render_template", (msg, _hass, onChange) => {
     onChange!({
       result: msg.template,
       listeners: { all: false, domains: [], entities: [], time: false },

demo/src/stubs/translations.ts

@@ -3,8 +3,6 @@ import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 export const mockTranslations = (hass: MockHomeAssistant) => {
   hass.mockWS(
     "frontend/get_translations",
-    (/* msg: {language: string, category: string} */) => {
-      return { resources: {} };
-    }
+    (/* msg: {language: string, category: string} */) => ({ resources: {} })
   );
 };

gallery/script/netlify_build_gallery

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+TARGET_LABEL="Needs design preview"
+
+if [[ "$NETLIFY" != "true" ]]; then
+  echo "This script can only be run on Netlify"
+  exit 1
+fi
+
+function createStatus() {
+  state="$1"
+  description="$2"
+  target_url="$3"
+  curl -X POST -H "Accept: application/vnd.github.v3+json" -H "Authorization: token $GITHUB_TOKEN" \
+    "https://api.github.com/repos/home-assistant/frontend/statuses/$COMMIT_REF" \
+    -d '{"state": "'"${state}"'", "context": "Netlify/Design Preview Build", "description": "'"$description"'", "target_url":  "'"$target_url"'"}'
+}
+
+
+if [[ "${PULL_REQUEST}" == "true" ]]; then
+  if [[ "$(curl -sSLf -H "Accept: application/vnd.github.v3+json" -H "Authorization: token $GITHUB_TOKEN" \
+    "https://api.github.com/repos/home-assistant/frontend/pulls/${REVIEW_ID}" | jq '.labels[].name' -r)" =~ "$TARGET_LABEL" ]]; then
+    createStatus "pending" "Building design preview" "https://app.netlify.com/sites/home-assistant-gallery/deploys/$BUILD_ID"
+    gulp build-gallery
+    if [ $? -eq 0 ]; then
+      createStatus "success" "Build complete" "$DEPLOY_URL"
+    else
+      createStatus "error" "Build failed" "https://app.netlify.com/sites/home-assistant-gallery/deploys/$BUILD_ID"
+    fi
+  else
+    createStatus "success" "Build was not requested by PR label"
+  fi
+elif [[ "$INCOMING_HOOK_BODY" == "NIGHTLY" ]]; then
+  gulp build-gallery
+fi

gallery/sidebar.js

@@ -0,0 +1,47 @@
+module.exports = [
+  {
+    // This section has no header and so all page links are shown directly in the sidebar
+    category: "concepts",
+    pages: ["home"],
+  },
+
+  {
+    category: "lovelace",
+    // Label for in the sidebar
+    header: "Lovelace",
+    // Specify order of pages. Any pages in the category folder but not listed here will
+    // automatically be added after the pages listed here.
+    pages: ["introduction"],
+  },
+  {
+    category: "automation",
+    header: "Automation",
+    pages: [
+      "editor-trigger",
+      "editor-condition",
+      "editor-action",
+      "trace",
+      "trace-timeline",
+    ],
+  },
+  {
+    category: "components",
+    header: "Components",
+  },
+  {
+    category: "more-info",
+    header: "More Info dialogs",
+  },
+  {
+    category: "misc",
+    header: "Miscelaneous",
+  },
+  {
+    category: "user-test",
+    header: "User Tests",
+  },
+  {
+    category: "design.home-assistant.io",
+    header: "Design Documentation",
+  },
+];

gallery/src/components/demo-black-white-row.ts

@@ -0,0 +1,139 @@
+import { Button } from "@material/mwc-button";
+import { html, LitElement, css, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
+import { applyThemesOnElement } from "../../../src/common/dom/apply_themes_on_element";
+import { fireEvent } from "../../../src/common/dom/fire_event";
+
+@customElement("demo-black-white-row")
+class DemoBlackWhiteRow extends LitElement {
+  @property() title!: string;
+
+  @property() value!: any;
+
+  @property() disabled = false;
+
+  protected render(): TemplateResult {
+    return html`
+      <div class="row">
+        <div class="content light">
+          <ha-card .header=${this.title}>
+            <div class="card-content">
+              <slot name="light"></slot>
+            </div>
+            <div class="card-actions">
+              <mwc-button
+                .disabled=${this.disabled}
+                @click=${this.handleSubmit}
+              >
+                Submit
+              </mwc-button>
+            </div>
+          </ha-card>
+        </div>
+        <div class="content dark">
+          <ha-card .header=${this.title}>
+            <div class="card-content">
+              <slot name="dark"></slot>
+            </div>
+            <div class="card-actions">
+              <mwc-button
+                .disabled=${this.disabled}
+                @click=${this.handleSubmit}
+              >
+                Submit
+              </mwc-button>
+            </div>
+          </ha-card>
+          <pre>${JSON.stringify(this.value, undefined, 2)}</pre>
+        </div>
+      </div>
+    `;
+  }
+
+  firstUpdated(changedProps) {
+    super.firstUpdated(changedProps);
+    applyThemesOnElement(this.shadowRoot!.querySelector(".dark"), {
+      default_theme: "default",
+      default_dark_theme: "default",
+      themes: {},
+      darkMode: true,
+      theme: "default",
+    });
+  }
+
+  handleSubmit(ev) {
+    const content = (ev.target as Button).closest(".content")!;
+    fireEvent(this, "submitted" as any, {
+      slot: content.classList.contains("light") ? "light" : "dark",
+    });
+  }
+
+  static styles = css`
+    .row {
+      display: flex;
+    }
+    .content {
+      padding: 50px 0;
+      background-color: var(--primary-background-color);
+    }
+    .light {
+      flex: 1;
+      padding-left: 50px;
+      padding-right: 50px;
+      box-sizing: border-box;
+    }
+    .light ha-card {
+      margin-left: auto;
+    }
+    .dark {
+      display: flex;
+      flex: 1;
+      padding-left: 50px;
+      box-sizing: border-box;
+      flex-wrap: wrap;
+    }
+    ha-card {
+      width: 400px;
+    }
+    pre {
+      width: 300px;
+      margin: 0 16px 0;
+      overflow: auto;
+      color: var(--primary-text-color);
+    }
+    .card-actions {
+      display: flex;
+      flex-direction: row-reverse;
+      border-top: none;
+    }
+    @media only screen and (max-width: 1500px) {
+      .light {
+        flex: initial;
+      }
+    }
+    @media only screen and (max-width: 1000px) {
+      .light,
+      .dark {
+        padding: 16px;
+      }
+      .row,
+      .dark {
+        flex-direction: column;
+      }
+      ha-card {
+        margin: 0 auto;
+        width: 100%;
+        max-width: 400px;
+      }
+      pre {
+        margin: 16px auto;
+      }
+    }
+  `;
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-black-white-row": DemoBlackWhiteRow;
+  }
+}

gallery/src/components/demo-card.js

@@ -1,106 +0,0 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
-import { safeLoad } from "js-yaml";
-import { createCardElement } from "../../../src/panels/lovelace/create-element/create-card-element";
-
-class DemoCard extends PolymerElement {
-  static get template() {
-    return html`
-      <style>
-        .root {
-          display: flex;
-        }
-        h2 {
-          margin: 0 0 20px;
-          color: var(--primary-color);
-        }
-        #card {
-          max-width: 400px;
-          width: 100vw;
-        }
-        pre {
-          width: 400px;
-          margin: 0 16px;
-          overflow: auto;
-          color: var(--primary-text-color);
-        }
-        @media only screen and (max-width: 800px) {
-          .root {
-            flex-direction: column;
-          }
-          pre {
-            margin: 16px 0;
-          }
-        }
-      </style>
-      <h2>[[config.heading]]</h2>
-      <div class="root">
-        <div id="card"></div>
-        <template is="dom-if" if="[[showConfig]]">
-          <pre>[[_trim(config.config)]]</pre>
-        </template>
-      </div>
-    `;
-  }
-
-  static get properties() {
-    return {
-      hass: {
-        type: Object,
-        observer: "_hassChanged",
-      },
-      config: {
-        type: Object,
-        observer: "_configChanged",
-      },
-      showConfig: Boolean,
-    };
-  }
-
-  ready() {
-    super.ready();
-  }
-
-  _configChanged(config) {
-    const card = this.$.card;
-    while (card.lastChild) {
-      card.removeChild(card.lastChild);
-    }
-
-    const el = this._createCardElement(safeLoad(config.config)[0]);
-    card.appendChild(el);
-  }
-
-  _createCardElement(cardConfig) {
-    const element = createCardElement(cardConfig);
-    if (this.hass) {
-      element.hass = this.hass;
-    }
-    element.addEventListener(
-      "ll-rebuild",
-      (ev) => {
-        ev.stopPropagation();
-        this._rebuildCard(element, cardConfig);
-      },
-      { once: true }
-    );
-    return element;
-  }
-
-  _rebuildCard(cardElToReplace, config) {
-    const newCardEl = this._createCardElement(config);
-    cardElToReplace.parentElement.replaceChild(newCardEl, cardElToReplace);
-  }
-
-  _hassChanged(hass) {
-    const card = this.$.card.lastChild;
-    if (card) card.hass = hass;
-  }
-
-  _trim(config) {
-    return config.trim();
-  }
-}
-
-customElements.define("demo-card", DemoCard);

gallery/src/components/demo-card.ts

@@ -0,0 +1,129 @@
+import { load } from "js-yaml";
+import { html, css, LitElement, PropertyValues } from "lit";
+import { customElement, property, query, state } from "lit/decorators";
+import { createCardElement } from "../../../src/panels/lovelace/create-element/create-card-element";
+import { HomeAssistant } from "../../../src/types";
+
+export interface DemoCardConfig {
+  heading: string;
+  config: string;
+}
+
+@customElement("demo-card")
+class DemoCard extends LitElement {
+  @property() public hass!: HomeAssistant;
+
+  @property() public config!: DemoCardConfig;
+
+  @property() public showConfig = false;
+
+  @state() private _size?: number;
+
+  @query("#card") private _card!: HTMLElement;
+
+  render() {
+    return html`
+      <h2>
+        ${this.config.heading}
+        ${this._size !== undefined
+          ? html`<small>(size ${this._size})</small>`
+          : ""}
+      </h2>
+      <div class="root">
+        <div id="card"></div>
+        ${this.showConfig ? html`<pre>${this.config.config.trim()}</pre>` : ""}
+      </div>
+    `;
+  }
+
+  updated(changedProps: PropertyValues) {
+    super.updated(changedProps);
+
+    if (changedProps.has("config")) {
+      const card = this._card;
+      while (card.lastChild) {
+        card.removeChild(card.lastChild);
+      }
+
+      const el = this._createCardElement((load(this.config.config) as any)[0]);
+      card.appendChild(el);
+      this._getSize(el);
+    }
+
+    if (changedProps.has("hass")) {
+      const card = this._card.lastChild;
+      if (card) {
+        (card as any).hass = this.hass;
+      }
+    }
+  }
+
+  async _getSize(el) {
+    await customElements.whenDefined(el.localName);
+
+    if (!("getCardSize" in el)) {
+      this._size = undefined;
+      return;
+    }
+    this._size = await el.getCardSize();
+  }
+
+  _createCardElement(cardConfig) {
+    const element = createCardElement(cardConfig);
+    if (this.hass) {
+      element.hass = this.hass;
+    }
+    element.addEventListener(
+      "ll-rebuild",
+      (ev) => {
+        ev.stopPropagation();
+        this._rebuildCard(element, cardConfig);
+      },
+      { once: true }
+    );
+    return element;
+  }
+
+  _rebuildCard(cardElToReplace, config) {
+    const newCardEl = this._createCardElement(config);
+    cardElToReplace.parentElement.replaceChild(newCardEl, cardElToReplace);
+  }
+
+  static styles = css`
+    .root {
+      display: flex;
+    }
+    h2 {
+      margin: 0 0 20px;
+      color: var(--primary-color);
+    }
+    h2 small {
+      font-size: 0.5em;
+      color: var(--primary-text-color);
+    }
+    #card {
+      max-width: 400px;
+      width: 100vw;
+    }
+    pre {
+      width: 400px;
+      margin: 0 16px;
+      overflow: auto;
+      color: var(--primary-text-color);
+    }
+    @media only screen and (max-width: 800px) {
+      .root {
+        flex-direction: column;
+      }
+      pre {
+        margin: 16px 0;
+      }
+    }
+  `;
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-card": DemoCard;
+  }
+}

gallery/src/components/demo-cards.js

@@ -1,83 +0,0 @@
-import "@polymer/app-layout/app-toolbar/app-toolbar";
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
-import { applyThemesOnElement } from "../../../src/common/dom/apply_themes_on_element";
-import "../../../src/components/ha-formfield";
-import "../../../src/components/ha-switch";
-import "./demo-card";
-
-class DemoCards extends PolymerElement {
-  static get template() {
-    return html`
-      <style>
-        #container {
-          min-height: calc(100vh - 128px);
-          background: var(--primary-background-color);
-        }
-        .cards {
-          display: flex;
-          flex-wrap: wrap;
-          justify-content: center;
-        }
-        demo-card {
-          margin: 16px 16px 32px;
-        }
-        app-toolbar {
-          background-color: var(--light-primary-color);
-        }
-        .filters {
-          margin-left: 60px;
-        }
-        ha-formfield {
-          margin-right: 16px;
-        }
-      </style>
-      <app-toolbar>
-        <div class="filters">
-          <ha-formfield label="Show config">
-            <ha-switch checked="[[_showConfig]]" on-change="_showConfigToggled">
-            </ha-switch>
-          </ha-formfield>
-          <ha-formfield label="Dark theme">
-            <ha-switch on-change="_darkThemeToggled"> </ha-switch>
-          </ha-formfield>
-        </div>
-      </app-toolbar>
-      <div id="container">
-        <div class="cards">
-          <template is="dom-repeat" items="[[configs]]">
-            <demo-card
-              config="[[item]]"
-              show-config="[[_showConfig]]"
-              hass="[[hass]]"
-            ></demo-card>
-          </template>
-        </div>
-      </div>
-    `;
-  }
-
-  static get properties() {
-    return {
-      configs: Object,
-      hass: Object,
-      _showConfig: {
-        type: Boolean,
-        value: false,
-      },
-    };
-  }
-
-  _showConfigToggled(ev) {
-    this._showConfig = ev.target.checked;
-  }
-
-  _darkThemeToggled(ev) {
-    applyThemesOnElement(this.$.container, { themes: {} }, "default", {
-      dark: ev.target.checked,
-    });
-  }
-}
-
-customElements.define("demo-cards", DemoCards);

gallery/src/components/demo-cards.ts

@@ -0,0 +1,88 @@
+import "@polymer/app-layout/app-toolbar/app-toolbar";
+import { html, css, LitElement } from "lit";
+import { customElement, property, query, state } from "lit/decorators";
+import { applyThemesOnElement } from "../../../src/common/dom/apply_themes_on_element";
+import "../../../src/components/ha-formfield";
+import "../../../src/components/ha-switch";
+import { HomeAssistant } from "../../../src/types";
+import "./demo-card";
+import type { DemoCardConfig } from "./demo-card";
+
+@customElement("demo-cards")
+class DemoCards extends LitElement {
+  @property() public configs!: DemoCardConfig[];
+
+  @property() public hass!: HomeAssistant;
+
+  @state() private _showConfig = false;
+
+  @query("#container") private _container!: HTMLElement;
+
+  render() {
+    return html`
+      <app-toolbar>
+        <div class="filters">
+          <ha-formfield label="Show config">
+            <ha-switch
+              .checked=${this._showConfig}
+              @change=${this._showConfigToggled}
+            >
+            </ha-switch>
+          </ha-formfield>
+          <ha-formfield label="Dark theme">
+            <ha-switch @change=${this._darkThemeToggled}> </ha-switch>
+          </ha-formfield>
+        </div>
+      </app-toolbar>
+      <div id="container">
+        <div class="cards">
+          ${this.configs.map(
+            (config) => html`
+              <demo-card
+                .config=${config}
+                .showConfig=${this._showConfig}
+                .hass=${this.hass}
+              ></demo-card>
+            `
+          )}
+        </div>
+      </div>
+    `;
+  }
+
+  _showConfigToggled(ev) {
+    this._showConfig = ev.target.checked;
+  }
+
+  _darkThemeToggled(ev) {
+    applyThemesOnElement(this._container, { themes: {} } as any, "default", {
+      dark: ev.target.checked,
+    });
+  }
+
+  static styles = css`
+    .cards {
+      display: flex;
+      flex-wrap: wrap;
+      justify-content: center;
+    }
+    demo-card {
+      margin: 16px 16px 32px;
+    }
+    app-toolbar {
+      background-color: var(--light-primary-color);
+    }
+    .filters {
+      margin-left: 60px;
+    }
+    ha-formfield {
+      margin-right: 16px;
+    }
+  `;
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-cards": DemoCards;
+  }
+}

gallery/src/components/page-description.ts

@@ -0,0 +1,46 @@
+import { html, css } from "lit";
+import { customElement, property } from "lit/decorators";
+import { until } from "lit/directives/until";
+import { HaMarkdown } from "../../../src/components/ha-markdown";
+import { PAGES } from "../../build/import-pages";
+
+@customElement("page-description")
+class PageDescription extends HaMarkdown {
+  @property() public page!: string;
+
+  render() {
+    if (!PAGES[this.page].description) {
+      return html``;
+    }
+    return html`
+      ${until(
+        PAGES[this.page]
+          .description()
+          .then((content) => html`<div class="root">${content}</div>`),
+        ""
+      )}
+    `;
+  }
+
+  static styles = [
+    HaMarkdown.styles,
+    css`
+      .root {
+        max-width: 800px;
+        margin: 0 auto;
+      }
+      .root > *:first-child {
+        margin-top: 0;
+      }
+      .root > *:last-child {
+        margin-bottom: 0;
+      }
+    `,
+  ];
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "page-description": PageDescription;
+  }
+}

gallery/src/demos/demo-more-info-light.ts

@@ -1,88 +0,0 @@
-import {
-  customElement,
-  html,
-  LitElement,
-  property,
-  PropertyValues,
-  query,
-  TemplateResult,
-} from "lit-element";
-import "../../../src/components/ha-card";
-import {
-  SUPPORT_BRIGHTNESS,
-  SUPPORT_COLOR,
-  SUPPORT_COLOR_TEMP,
-  SUPPORT_EFFECT,
-  SUPPORT_FLASH,
-  SUPPORT_TRANSITION,
-  SUPPORT_WHITE_VALUE,
-} from "../../../src/data/light";
-import "../../../src/dialogs/more-info/more-info-content";
-import { getEntity } from "../../../src/fake_data/entity";
-import {
-  MockHomeAssistant,
-  provideHass,
-} from "../../../src/fake_data/provide_hass";
-import "../components/demo-more-infos";
-
-const ENTITIES = [
-  getEntity("light", "bed_light", "on", {
-    friendly_name: "Basic Light",
-  }),
-  getEntity("light", "kitchen_light", "on", {
-    friendly_name: "Brightness Light",
-    brightness: 200,
-    supported_features: SUPPORT_BRIGHTNESS,
-  }),
-  getEntity("light", "color_temperature_light", "on", {
-    friendly_name: "White Color Temperature Light",
-    brightness: 128,
-    color_temp: 75,
-    min_mireds: 30,
-    max_mireds: 150,
-    supported_features: SUPPORT_BRIGHTNESS + SUPPORT_COLOR_TEMP,
-  }),
-  getEntity("light", "color_effectslight", "on", {
-    friendly_name: "Color Effets Light",
-    brightness: 255,
-    hs_color: [30, 100],
-    white_value: 36,
-    supported_features:
-      SUPPORT_BRIGHTNESS +
-      SUPPORT_EFFECT +
-      SUPPORT_FLASH +
-      SUPPORT_COLOR +
-      SUPPORT_TRANSITION +
-      SUPPORT_WHITE_VALUE,
-    effect_list: ["random", "colorloop"],
-  }),
-];
-
-@customElement("demo-more-info-light")
-class DemoMoreInfoLight extends LitElement {
-  @property() public hass!: MockHomeAssistant;
-
-  @query("demo-more-infos") private _demoRoot!: HTMLElement;
-
-  protected render(): TemplateResult {
-    return html`
-      <demo-more-infos
-        .hass=${this.hass}
-        .entities=${ENTITIES.map((ent) => ent.entityId)}
-      ></demo-more-infos>
-    `;
-  }
-
-  protected firstUpdated(changedProperties: PropertyValues) {
-    super.firstUpdated(changedProperties);
-    const hass = provideHass(this._demoRoot);
-    hass.updateTranslations(null, "en");
-    hass.addEntities(ENTITIES);
-  }
-}
-
-declare global {
-  interface HTMLElementTagNameMap {
-    "demo-more-info-light": DemoMoreInfoLight;
-  }
-}

gallery/src/ha-gallery.js

@@ -1,221 +0,0 @@
-import "@polymer/app-layout/app-header-layout/app-header-layout";
-import "@polymer/app-layout/app-header/app-header";
-import "@polymer/app-layout/app-toolbar/app-toolbar";
-import "@polymer/paper-item/paper-item";
-import "@polymer/paper-item/paper-item-body";
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-/* eslint-plugin-disable lit */
-import { PolymerElement } from "@polymer/polymer/polymer-element";
-import "../../src/components/ha-card";
-import "../../src/components/ha-icon";
-import "../../src/components/ha-icon-button";
-import "../../src/managers/notification-manager";
-import "../../src/styles/polymer-ha-style";
-// eslint-disable-next-line import/extensions
-import { DEMOS } from "../build/import-demos";
-
-class HaGallery extends PolymerElement {
-  static get template() {
-    return html`
-      <style include="iron-positioning ha-style">
-        :host {
-          -ms-user-select: initial;
-          -webkit-user-select: initial;
-          -moz-user-select: initial;
-        }
-        app-header-layout {
-          min-height: 100vh;
-        }
-        ha-icon-button.invisible {
-          visibility: hidden;
-        }
-
-        .pickers {
-          display: flex;
-          flex-wrap: wrap;
-          justify-content: center;
-          align-items: start;
-        }
-
-        .pickers ha-card {
-          width: 400px;
-          display: block;
-          margin: 16px 8px;
-        }
-
-        .pickers ha-card:last-child {
-          margin-bottom: 16px;
-        }
-
-        .intro {
-          margin: -1em 0;
-        }
-
-        p a {
-          color: var(--primary-color);
-        }
-
-        a {
-          color: var(--primary-text-color);
-          text-decoration: none;
-        }
-      </style>
-
-      <app-header-layout>
-        <app-header slot="header" fixed>
-          <app-toolbar>
-            <ha-icon-button
-              icon="hass:arrow-left"
-              on-click="_backTapped"
-              class$="[[_computeHeaderButtonClass(_demo)]]"
-            ></ha-icon-button>
-            <div main-title>
-              [[_withDefault(_demo, "Home Assistant Gallery")]]
-            </div>
-          </app-toolbar>
-        </app-header>
-
-        <div class="content">
-          <div id="demo"></div>
-          <template is="dom-if" if="[[!_demo]]">
-            <div class="pickers">
-              <ha-card header="Lovelace Card Demos">
-                <div class="card-content intro">
-                  <p>
-                    Lovelace has many different cards. Each card allows the user
-                    to tell a different story about what is going on in their
-                    house. These cards are very customizable, as no household is
-                    the same.
-                  </p>
-
-                  <p>
-                    This gallery helps our developers and designers to see all
-                    the different states that each card can be in.
-                  </p>
-
-                  <p>
-                    Check
-                    <a href="https://www.home-assistant.io/lovelace"
-                      >the official website</a
-                    >
-                    for instructions on how to get started with Lovelace.
-                  </p>
-                </div>
-                <template is="dom-repeat" items="[[_lovelaceDemos]]">
-                  <a href="#[[item]]">
-                    <paper-item>
-                      <paper-item-body>{{ item }}</paper-item-body>
-                      <ha-icon icon="hass:chevron-right"></ha-icon>
-                    </paper-item>
-                  </a>
-                </template>
-              </ha-card>
-
-              <ha-card header="Other Demos">
-                <div class="card-content intro"></div>
-                <template is="dom-repeat" items="[[_restDemos]]">
-                  <a href="#[[item]]">
-                    <paper-item>
-                      <paper-item-body>{{ item }}</paper-item-body>
-                      <ha-icon icon="hass:chevron-right"></ha-icon>
-                    </paper-item>
-                  </a>
-                </template>
-              </ha-card>
-            </div>
-          </template>
-        </div>
-      </app-header-layout>
-      <notification-manager
-        hass="[[_fakeHass]]"
-        id="notifications"
-      ></notification-manager>
-    `;
-  }
-
-  static get properties() {
-    return {
-      _fakeHass: {
-        type: Object,
-        // Just enough for computeRTL
-        value: {
-          language: "en",
-          translationMetadata: {
-            translations: {},
-          },
-        },
-      },
-      _demo: {
-        type: String,
-        value: document.location.hash.substr(1),
-        observer: "_demoChanged",
-      },
-      _demos: {
-        type: Array,
-        value: Object.keys(DEMOS),
-      },
-      _lovelaceDemos: {
-        type: Array,
-        computed: "_computeLovelace(_demos)",
-      },
-      _restDemos: {
-        type: Array,
-        computed: "_computeRest(_demos)",
-      },
-    };
-  }
-
-  ready() {
-    super.ready();
-
-    this.addEventListener("show-notification", (ev) =>
-      this.$.notifications.showDialog({ message: ev.detail.message })
-    );
-
-    this.addEventListener("hass-more-info", (ev) => {
-      if (ev.detail.entityId) {
-        this.$.notifications.showDialog({
-          message: `Showing more info for ${ev.detail.entityId}`,
-        });
-      }
-    });
-
-    window.addEventListener("hashchange", () => {
-      this._demo = document.location.hash.substr(1);
-    });
-  }
-
-  _withDefault(value, def) {
-    return value || def;
-  }
-
-  _demoChanged(demo) {
-    const root = this.$.demo;
-
-    while (root.lastChild) root.removeChild(root.lastChild);
-
-    if (demo) {
-      DEMOS[demo]();
-      const el = document.createElement(demo);
-      root.appendChild(el);
-    }
-  }
-
-  _computeHeaderButtonClass(demo) {
-    return demo ? "" : "invisible";
-  }
-
-  _backTapped() {
-    document.location.hash = "";
-  }
-
-  _computeLovelace(demos) {
-    return demos.filter((demo) => demo.includes("hui"));
-  }
-
-  _computeRest(demos) {
-    return demos.filter((demo) => !demo.includes("hui"));
-  }
-}
-
-customElements.define("ha-gallery", HaGallery);

gallery/src/ha-gallery.ts

@@ -0,0 +1,256 @@
+import { mdiMenu } from "@mdi/js";
+import "@material/mwc-drawer";
+import "@material/mwc-top-app-bar-fixed";
+import { html, css, LitElement, PropertyValues } from "lit";
+import { customElement, property, query } from "lit/decorators";
+import "../../src/components/ha-icon-button";
+import "../../src/managers/notification-manager";
+import { haStyle } from "../../src/resources/styles";
+import { PAGES, SIDEBAR } from "../build/import-pages";
+import { dynamicElement } from "../../src/common/dom/dynamic-element-directive";
+import "./components/page-description";
+
+const GITHUB_DEMO_URL =
+  "https://github.com/home-assistant/frontend/blob/dev/gallery/src/pages/";
+
+const FAKE_HASS = {
+  // Just enough for computeRTL for notification-manager
+  language: "en",
+  translationMetadata: {
+    translations: {},
+  },
+};
+
+@customElement("ha-gallery")
+class HaGallery extends LitElement {
+  @property() private _page =
+    document.location.hash.substring(1) ||
+    `${SIDEBAR[0].category}/${SIDEBAR[0].pages![0]}`;
+
+  @query("notification-manager")
+  private _notifications!: HTMLElementTagNameMap["notification-manager"];
+
+  @query("mwc-drawer")
+  private _drawer!: HTMLElementTagNameMap["mwc-drawer"];
+
+  private _narrow = window.matchMedia("(max-width: 600px)").matches;
+
+  render() {
+    const sidebar: unknown[] = [];
+
+    for (const group of SIDEBAR) {
+      const links: unknown[] = [];
+
+      for (const page of group.pages!) {
+        const key = `${group.category}/${page}`;
+        const active = this._page === key;
+        const title = PAGES[key].metadata.title || page;
+        links.push(html`
+          <a ?active=${active} href=${`#${group.category}/${page}`}>${title}</a>
+        `);
+      }
+
+      sidebar.push(
+        group.header
+          ? html`
+              <details>
+                <summary class="section">${group.header}</summary>
+                ${links}
+              </details>
+            `
+          : links
+      );
+    }
+
+    return html`
+      <mwc-drawer
+        hasHeader
+        .open=${!this._narrow}
+        .type=${this._narrow ? "modal" : "dismissible"}
+      >
+        <span slot="title">Home Assistant Design</span>
+        <!-- <span slot="subtitle">subtitle</span> -->
+        <div class="sidebar">${sidebar}</div>
+        <div slot="appContent">
+          <mwc-top-app-bar-fixed>
+            <ha-icon-button
+              slot="navigationIcon"
+              @click=${this._menuTapped}
+              .path=${mdiMenu}
+            ></ha-icon-button>
+
+            <div slot="title">
+              ${PAGES[this._page].metadata.title || this._page.split("/")[1]}
+            </div>
+          </mwc-top-app-bar-fixed>
+          <div class="content">
+            ${PAGES[this._page].description
+              ? html`
+                  <page-description .page=${this._page}></page-description>
+                `
+              : ""}
+            ${dynamicElement(`demo-${this._page.replace("/", "-")}`)}
+          </div>
+          <div class="page-footer">
+            ${PAGES[this._page].description ||
+            Object.keys(PAGES[this._page].metadata).length > 0
+              ? html`
+                  <a
+                    href=${`${GITHUB_DEMO_URL}${this._page}.markdown`}
+                    target="_blank"
+                  >
+                    Edit text
+                  </a>
+                `
+              : ""}
+            ${PAGES[this._page].demo
+              ? html`
+                  <a
+                    href=${`${GITHUB_DEMO_URL}${this._page}.ts`}
+                    target="_blank"
+                  >
+                    Edit demo
+                  </a>
+                `
+              : ""}
+          </div>
+        </div>
+      </mwc-drawer>
+      <notification-manager
+        .hass=${FAKE_HASS}
+        id="notifications"
+      ></notification-manager>
+    `;
+  }
+
+  firstUpdated(changedProps: PropertyValues) {
+    super.firstUpdated(changedProps);
+
+    this.addEventListener("show-notification", (ev) =>
+      this._notifications.showDialog({ message: ev.detail.message })
+    );
+    this.addEventListener("alert-dismissed-clicked", () =>
+      this._notifications.showDialog({ message: "Alert dismissed clicked" })
+    );
+    this.addEventListener("hass-more-info", (ev) => {
+      if (ev.detail.entityId) {
+        this._notifications.showDialog({
+          message: `Showing more info for ${ev.detail.entityId}`,
+        });
+      }
+    });
+
+    document.location.hash = this._page;
+
+    window.addEventListener("hashchange", () => {
+      this._page = document.location.hash.substring(1);
+      if (this._narrow) {
+        this._drawer.open = false;
+      }
+    });
+  }
+
+  updated(changedProps: PropertyValues) {
+    super.updated(changedProps);
+    if (!changedProps.has("_page")) {
+      return;
+    }
+
+    if (PAGES[this._page].demo) {
+      PAGES[this._page].demo();
+    }
+
+    const menuItem = this.shadowRoot!.querySelector(
+      `a[href="#${this._page}"]`
+    )!;
+    // Make sure section is expanded
+    if (menuItem.parentElement instanceof HTMLDetailsElement) {
+      menuItem.parentElement.open = true;
+    }
+  }
+
+  _menuTapped() {
+    this._drawer.open = !this._drawer.open;
+  }
+
+  static styles = [
+    haStyle,
+    css`
+      :host {
+        -ms-user-select: initial;
+        -webkit-user-select: initial;
+        -moz-user-select: initial;
+      }
+
+      .sidebar {
+        padding: 4px;
+      }
+
+      .sidebar details {
+        margin-top: 1em;
+      }
+
+      .sidebar summary {
+        cursor: pointer;
+        font-weight: bold;
+        margin-bottom: 8px;
+      }
+
+      .sidebar a {
+        color: var(--primary-text-color);
+        display: block;
+        padding: 4px 12px;
+        text-decoration: none;
+        position: relative;
+      }
+
+      .sidebar a[active]::before {
+        border-radius: 4px;
+        position: absolute;
+        top: 0;
+        right: 2px;
+        bottom: 0;
+        left: 2px;
+        pointer-events: none;
+        content: "";
+        transition: opacity 15ms linear;
+        will-change: opacity;
+        background-color: var(--sidebar-selected-icon-color);
+        opacity: 0.12;
+      }
+
+      div[slot="appContent"] {
+        display: flex;
+        flex-direction: column;
+        min-height: 100vh;
+        background: var(--primary-background-color);
+      }
+
+      .content {
+        flex: 1;
+      }
+
+      page-description {
+        margin: 16px;
+      }
+
+      .page-footer {
+        text-align: center;
+        margin: 16px 0;
+        padding-top: 16px;
+        border-top: 1px solid rgba(0, 0, 0, 0.12);
+      }
+
+      .page-footer a {
+        display: inline-block;
+        margin: 0 8px;
+      }
+    `,
+  ];
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "ha-gallery": HaGallery;
+  }
+}

gallery/src/html/index.html.template

@@ -7,7 +7,7 @@
       content="width=device-width, initial-scale=1, shrink-to-fit=no"
     />
     <meta name="theme-color" content="#2157BC" />
-    <title>HAGallery</title>
+    <title>Home Assistant Design</title>
 
     <script type="module" src="<%= latestGalleryJS %>"></script>
     <style>

gallery/src/pages/automation/describe-action.markdown

@@ -0,0 +1,3 @@
+---
+title: Describe Action
+---

gallery/src/pages/automation/describe-action.ts

@@ -1,16 +1,10 @@
-import { safeDump } from "js-yaml";
-import {
-  customElement,
-  html,
-  css,
-  LitElement,
-  TemplateResult,
-  property,
-} from "lit-element";
-import "../../../src/components/ha-card";
-import { describeAction } from "../../../src/data/script_i18n";
-import { provideHass } from "../../../src/fake_data/provide_hass";
-import { HomeAssistant } from "../../../src/types";
+import { dump } from "js-yaml";
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
+import "../../../../src/components/ha-card";
+import { describeAction } from "../../../../src/data/script_i18n";
+import { provideHass } from "../../../../src/fake_data/provide_hass";
+import { HomeAssistant } from "../../../../src/types";
 
 const actions = [
   { wait_template: "{{ true }}", alias: "Something with an alias" },
@@ -62,7 +56,7 @@ export class DemoAutomationDescribeAction extends LitElement {
           (conf) => html`
             <div class="action">
               <span>${describeAction(this.hass, conf as any)}</span>
-              <pre>${safeDump(conf)}</pre>
+              <pre>${dump(conf)}</pre>
             </div>
           `
         )}

gallery/src/pages/automation/describe-condition.markdown

@@ -0,0 +1,3 @@
+---
+title: Describe Condition
+---

gallery/src/pages/automation/describe-condition.ts

@@ -1,13 +1,8 @@
-import { safeDump } from "js-yaml";
-import {
-  customElement,
-  html,
-  css,
-  LitElement,
-  TemplateResult,
-} from "lit-element";
-import "../../../src/components/ha-card";
-import { describeCondition } from "../../../src/data/automation_i18n";
+import { dump } from "js-yaml";
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement } from "lit/decorators";
+import "../../../../src/components/ha-card";
+import { describeCondition } from "../../../../src/data/automation_i18n";
 
 const conditions = [
   { condition: "and" },
@@ -31,7 +26,7 @@ export class DemoAutomationDescribeCondition extends LitElement {
           (conf) => html`
             <div class="condition">
               <span>${describeCondition(conf as any)}</span>
-              <pre>${safeDump(conf)}</pre>
+              <pre>${dump(conf)}</pre>
             </div>
           `
         )}

gallery/src/pages/automation/describe-trigger.markdown

@@ -0,0 +1,3 @@
+---
+title: Describe Trigger
+---

gallery/src/pages/automation/describe-trigger.ts

@@ -1,13 +1,8 @@
-import { safeDump } from "js-yaml";
-import {
-  customElement,
-  html,
-  css,
-  LitElement,
-  TemplateResult,
-} from "lit-element";
-import "../../../src/components/ha-card";
-import { describeTrigger } from "../../../src/data/automation_i18n";
+import { dump } from "js-yaml";
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement } from "lit/decorators";
+import "../../../../src/components/ha-card";
+import { describeTrigger } from "../../../../src/data/automation_i18n";
 
 const triggers = [
   { platform: "state" },
@@ -34,7 +29,7 @@ export class DemoAutomationDescribeTrigger extends LitElement {
           (conf) => html`
             <div class="trigger">
               <span>${describeTrigger(conf as any)}</span>
-              <pre>${safeDump(conf)}</pre>
+              <pre>${dump(conf)}</pre>
             </div>
           `
         )}

gallery/src/pages/automation/editor-action.markdown

@@ -0,0 +1,3 @@
+---
+title: Actions
+---

gallery/src/pages/automation/editor-action.ts

@@ -0,0 +1,91 @@
+/* eslint-disable lit/no-template-arrow */
+import { LitElement, TemplateResult, html } from "lit";
+import { customElement, state } from "lit/decorators";
+import { provideHass } from "../../../../src/fake_data/provide_hass";
+import type { HomeAssistant } from "../../../../src/types";
+import "../../components/demo-black-white-row";
+import { mockEntityRegistry } from "../../../../demo/src/stubs/entity_registry";
+import { mockDeviceRegistry } from "../../../../demo/src/stubs/device_registry";
+import { mockAreaRegistry } from "../../../../demo/src/stubs/area_registry";
+import { mockHassioSupervisor } from "../../../../demo/src/stubs/hassio_supervisor";
+import "../../../../src/panels/config/automation/action/ha-automation-action";
+import { HaChooseAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-choose";
+import { HaDelayAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-delay";
+import { HaDeviceAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-device_id";
+import { HaEventAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-event";
+import { HaRepeatAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-repeat";
+import { HaSceneAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-scene";
+import { HaServiceAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-service";
+import { HaWaitForTriggerAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-wait_for_trigger";
+import { HaWaitAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-wait_template";
+import { Action } from "../../../../src/data/script";
+import { HaConditionAction } from "../../../../src/panels/config/automation/action/types/ha-automation-action-condition";
+
+const SCHEMAS: { name: string; actions: Action[] }[] = [
+  { name: "Event", actions: [HaEventAction.defaultConfig] },
+  { name: "Device", actions: [HaDeviceAction.defaultConfig] },
+  { name: "Service", actions: [HaServiceAction.defaultConfig] },
+  { name: "Condition", actions: [HaConditionAction.defaultConfig] },
+  { name: "Delay", actions: [HaDelayAction.defaultConfig] },
+  { name: "Scene", actions: [HaSceneAction.defaultConfig] },
+  { name: "Wait", actions: [HaWaitAction.defaultConfig] },
+  { name: "WaitForTrigger", actions: [HaWaitForTriggerAction.defaultConfig] },
+  { name: "Repeat", actions: [HaRepeatAction.defaultConfig] },
+  { name: "Choose", actions: [HaChooseAction.defaultConfig] },
+  { name: "Variables", actions: [{ variables: { hello: "1" } }] },
+];
+
+@customElement("demo-automation-editor-action")
+class DemoHaAutomationEditorAction extends LitElement {
+  @state() private hass!: HomeAssistant;
+
+  private data: any = SCHEMAS.map((info) => info.actions);
+
+  constructor() {
+    super();
+    const hass = provideHass(this);
+    hass.updateTranslations(null, "en");
+    hass.updateTranslations("config", "en");
+    mockEntityRegistry(hass);
+    mockDeviceRegistry(hass);
+    mockAreaRegistry(hass);
+    mockHassioSupervisor(hass);
+  }
+
+  protected render(): TemplateResult {
+    const valueChanged = (ev) => {
+      const sampleIdx = ev.target.sampleIdx;
+      this.data[sampleIdx] = ev.detail.value;
+      this.requestUpdate();
+    };
+    return html`
+      ${SCHEMAS.map(
+        (info, sampleIdx) => html`
+          <demo-black-white-row
+            .title=${info.name}
+            .value=${this.data[sampleIdx]}
+          >
+            ${["light", "dark"].map(
+              (slot) =>
+                html`
+                  <ha-automation-action
+                    slot=${slot}
+                    .hass=${this.hass}
+                    .actions=${this.data[sampleIdx]}
+                    .sampleIdx=${sampleIdx}
+                    @value-changed=${valueChanged}
+                  ></ha-automation-action>
+                `
+            )}
+          </demo-black-white-row>
+        `
+      )}
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-ha-automation-editor-action": DemoHaAutomationEditorAction;
+  }
+}

gallery/src/pages/automation/editor-condition.markdown

@@ -0,0 +1,3 @@
+---
+title: Conditions
+---

gallery/src/pages/automation/editor-condition.ts

@@ -0,0 +1,127 @@
+/* eslint-disable lit/no-template-arrow */
+import { LitElement, TemplateResult, html } from "lit";
+import { customElement, state } from "lit/decorators";
+import { provideHass } from "../../../../src/fake_data/provide_hass";
+import type { HomeAssistant } from "../../../../src/types";
+import "../../components/demo-black-white-row";
+import { mockEntityRegistry } from "../../../../demo/src/stubs/entity_registry";
+import { mockDeviceRegistry } from "../../../../demo/src/stubs/device_registry";
+import { mockAreaRegistry } from "../../../../demo/src/stubs/area_registry";
+import { mockHassioSupervisor } from "../../../../demo/src/stubs/hassio_supervisor";
+import type { Condition } from "../../../../src/data/automation";
+import "../../../../src/panels/config/automation/condition/ha-automation-condition";
+import { HaDeviceCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-device";
+import { HaLogicalCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-logical";
+import HaNumericStateCondition from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-numeric_state";
+import { HaStateCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-state";
+import { HaSunCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-sun";
+import { HaTemplateCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-template";
+import { HaTimeCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-time";
+import { HaTriggerCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-trigger";
+import { HaZoneCondition } from "../../../../src/panels/config/automation/condition/types/ha-automation-condition-zone";
+
+const SCHEMAS: { name: string; conditions: Condition[] }[] = [
+  {
+    name: "State",
+    conditions: [{ condition: "state", ...HaStateCondition.defaultConfig }],
+  },
+  {
+    name: "Numeric State",
+    conditions: [
+      { condition: "numeric_state", ...HaNumericStateCondition.defaultConfig },
+    ],
+  },
+  {
+    name: "Sun",
+    conditions: [{ condition: "sun", ...HaSunCondition.defaultConfig }],
+  },
+  {
+    name: "Zone",
+    conditions: [{ condition: "zone", ...HaZoneCondition.defaultConfig }],
+  },
+  {
+    name: "Time",
+    conditions: [{ condition: "time", ...HaTimeCondition.defaultConfig }],
+  },
+  {
+    name: "Template",
+    conditions: [
+      { condition: "template", ...HaTemplateCondition.defaultConfig },
+    ],
+  },
+  {
+    name: "Device",
+    conditions: [{ condition: "device", ...HaDeviceCondition.defaultConfig }],
+  },
+  {
+    name: "And",
+    conditions: [{ condition: "and", ...HaLogicalCondition.defaultConfig }],
+  },
+  {
+    name: "Or",
+    conditions: [{ condition: "or", ...HaLogicalCondition.defaultConfig }],
+  },
+  {
+    name: "Not",
+    conditions: [{ condition: "not", ...HaLogicalCondition.defaultConfig }],
+  },
+  {
+    name: "Trigger",
+    conditions: [{ condition: "trigger", ...HaTriggerCondition.defaultConfig }],
+  },
+];
+
+@customElement("demo-automation-editor-condition")
+class DemoHaAutomationEditorCondition extends LitElement {
+  @state() private hass!: HomeAssistant;
+
+  private data: any = SCHEMAS.map((info) => info.conditions);
+
+  constructor() {
+    super();
+    const hass = provideHass(this);
+    hass.updateTranslations(null, "en");
+    hass.updateTranslations("config", "en");
+    mockEntityRegistry(hass);
+    mockDeviceRegistry(hass);
+    mockAreaRegistry(hass);
+    mockHassioSupervisor(hass);
+  }
+
+  protected render(): TemplateResult {
+    const valueChanged = (ev) => {
+      const sampleIdx = ev.target.sampleIdx;
+      this.data[sampleIdx] = ev.detail.value;
+      this.requestUpdate();
+    };
+    return html`
+      ${SCHEMAS.map(
+        (info, sampleIdx) => html`
+          <demo-black-white-row
+            .title=${info.name}
+            .value=${this.data[sampleIdx]}
+          >
+            ${["light", "dark"].map(
+              (slot) =>
+                html`
+                  <ha-automation-condition
+                    slot=${slot}
+                    .hass=${this.hass}
+                    .conditions=${this.data[sampleIdx]}
+                    .sampleIdx=${sampleIdx}
+                    @value-changed=${valueChanged}
+                  ></ha-automation-condition>
+                `
+            )}
+          </demo-black-white-row>
+        `
+      )}
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-ha-automation-editor-condition": DemoHaAutomationEditorCondition;
+  }
+}

gallery/src/pages/automation/editor-trigger.markdown

@@ -0,0 +1,3 @@
+---
+title: Triggers
+---

gallery/src/pages/automation/editor-trigger.ts

@@ -0,0 +1,159 @@
+/* eslint-disable lit/no-template-arrow */
+import { LitElement, TemplateResult, html } from "lit";
+import { customElement, state } from "lit/decorators";
+import { provideHass } from "../../../../src/fake_data/provide_hass";
+import type { HomeAssistant } from "../../../../src/types";
+import "../../components/demo-black-white-row";
+import { mockEntityRegistry } from "../../../../demo/src/stubs/entity_registry";
+import { mockDeviceRegistry } from "../../../../demo/src/stubs/device_registry";
+import { mockAreaRegistry } from "../../../../demo/src/stubs/area_registry";
+import { mockHassioSupervisor } from "../../../../demo/src/stubs/hassio_supervisor";
+import type { Trigger } from "../../../../src/data/automation";
+import { HaGeolocationTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-geo_location";
+import { HaEventTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-event";
+import { HaHassTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-homeassistant";
+import { HaNumericStateTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-numeric_state";
+import { HaSunTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-sun";
+import { HaTagTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-tag";
+import { HaTemplateTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-template";
+import { HaTimeTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-time";
+import { HaTimePatternTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-time_pattern";
+import { HaWebhookTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-webhook";
+import { HaZoneTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-zone";
+import { HaDeviceTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-device";
+import { HaStateTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-state";
+import { HaMQTTTrigger } from "../../../../src/panels/config/automation/trigger/types/ha-automation-trigger-mqtt";
+import "../../../../src/panels/config/automation/trigger/ha-automation-trigger";
+
+const SCHEMAS: { name: string; triggers: Trigger[] }[] = [
+  {
+    name: "State",
+    triggers: [{ platform: "state", ...HaStateTrigger.defaultConfig }],
+  },
+
+  {
+    name: "MQTT",
+    triggers: [{ platform: "mqtt", ...HaMQTTTrigger.defaultConfig }],
+  },
+
+  {
+    name: "GeoLocation",
+    triggers: [
+      { platform: "geo_location", ...HaGeolocationTrigger.defaultConfig },
+    ],
+  },
+
+  {
+    name: "Home Assistant",
+    triggers: [{ platform: "homeassistant", ...HaHassTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Numeric State",
+    triggers: [
+      { platform: "numeric_state", ...HaNumericStateTrigger.defaultConfig },
+    ],
+  },
+
+  {
+    name: "Sun",
+    triggers: [{ platform: "sun", ...HaSunTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Time Pattern",
+    triggers: [
+      { platform: "time_pattern", ...HaTimePatternTrigger.defaultConfig },
+    ],
+  },
+
+  {
+    name: "Webhook",
+    triggers: [{ platform: "webhook", ...HaWebhookTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Zone",
+    triggers: [{ platform: "zone", ...HaZoneTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Tag",
+    triggers: [{ platform: "tag", ...HaTagTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Time",
+    triggers: [{ platform: "time", ...HaTimeTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Template",
+    triggers: [{ platform: "template", ...HaTemplateTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Event",
+    triggers: [{ platform: "event", ...HaEventTrigger.defaultConfig }],
+  },
+
+  {
+    name: "Device Trigger",
+    triggers: [{ platform: "device", ...HaDeviceTrigger.defaultConfig }],
+  },
+];
+
+@customElement("demo-automation-editor-trigger")
+class DemoHaAutomationEditorTrigger extends LitElement {
+  @state() private hass!: HomeAssistant;
+
+  private data: any = SCHEMAS.map((info) => info.triggers);
+
+  constructor() {
+    super();
+    const hass = provideHass(this);
+    hass.updateTranslations(null, "en");
+    hass.updateTranslations("config", "en");
+    mockEntityRegistry(hass);
+    mockDeviceRegistry(hass);
+    mockAreaRegistry(hass);
+    mockHassioSupervisor(hass);
+  }
+
+  protected render(): TemplateResult {
+    const valueChanged = (ev) => {
+      const sampleIdx = ev.target.sampleIdx;
+      this.data[sampleIdx] = ev.detail.value;
+      this.requestUpdate();
+    };
+    return html`
+      ${SCHEMAS.map(
+        (info, sampleIdx) => html`
+          <demo-black-white-row
+            .title=${info.name}
+            .value=${this.data[sampleIdx]}
+          >
+            ${["light", "dark"].map(
+              (slot) =>
+                html`
+                  <ha-automation-trigger
+                    slot=${slot}
+                    .hass=${this.hass}
+                    .triggers=${this.data[sampleIdx]}
+                    .sampleIdx=${sampleIdx}
+                    @value-changed=${valueChanged}
+                  ></ha-automation-trigger>
+                `
+            )}
+          </demo-black-white-row>
+        `
+      )}
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "demo-ha-automation-editor-trigger": DemoHaAutomationEditorTrigger;
+  }
+}

gallery/src/pages/automation/trace-timeline.markdown

@@ -0,0 +1,3 @@
+---
+title: Trace Timelines
+---

gallery/src/pages/automation/trace-timeline.ts

@@ -1,18 +1,13 @@
-import {
-  customElement,
-  html,
-  css,
-  LitElement,
-  TemplateResult,
-  property,
-} from "lit-element";
-import "../../../src/components/ha-card";
-import "../../../src/components/trace/hat-script-graph";
-import "../../../src/components/trace/hat-trace-timeline";
-import { provideHass } from "../../../src/fake_data/provide_hass";
-import { HomeAssistant } from "../../../src/types";
-import { mockDemoTrace } from "../data/traces/mock-demo-trace";
-import { DemoTrace } from "../data/traces/types";
+/* eslint-disable lit/no-template-arrow */
+import { html, css, LitElement, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators";
+import "../../../../src/components/ha-card";
+import "../../../../src/components/trace/hat-script-graph";
+import "../../../../src/components/trace/hat-trace-timeline";
+import { provideHass } from "../../../../src/fake_data/provide_hass";
+import { HomeAssistant } from "../../../../src/types";
+import { mockDemoTrace } from "../../data/traces/mock-demo-trace";
+import { DemoTrace } from "../../data/traces/types";
 
 const traces: DemoTrace[] = [
   mockDemoTrace({ state: "running" }),

gallery/src/pages/automation/trace.markdown

@@ -0,0 +1,3 @@
+---
+title: Trace Graphs
+---

gallery/src/pages/automation/trace.ts

@@ -1,20 +1,14 @@
-import {
-  customElement,
-  html,
-  css,
-  LitElement,
-  TemplateResult,
-  internalProperty,
-  property,
-} from "lit-element";
-import "../../../src/components/ha-card";
-import "../../../src/components/trace/hat-script-graph";
-import "../../../src/components/trace/hat-trace-timeline";
-import { provideHass } from "../../../src/fake_data/provide_hass";
-import { HomeAssistant } from "../../../src/types";
-import { DemoTrace } from "../data/traces/types";
-import { basicTrace } from "../data/traces/basic_trace";
-import { motionLightTrace } from "../data/traces/motion-light-trace";
+/* eslint-disable lit/no-template-arrow */
+import { html, css, LitElement, TemplateResult } from "lit";
+import "../../../../src/components/ha-card";
+import "../../../../src/components/trace/hat-script-graph";
+import "../../../../src/components/trace/hat-trace-timeline";
+import { customElement, property, state } from "lit/decorators";
+import { provideHass } from "../../../../src/fake_data/provide_hass";
+import { HomeAssistant } from "../../../../src/types";
+import { DemoTrace } from "../../data/traces/types";
+import { basicTrace } from "../../data/traces/basic_trace";
+import { motionLightTrace } from "../../data/traces/motion-light-trace";
 
 const traces: DemoTrace[] = [basicTrace, motionLightTrace];
 
@@ -22,7 +16,7 @@ const traces: DemoTrace[] = [basicTrace, motionLightTrace];
 export class DemoAutomationTrace extends LitElement {
   @property({ attribute: false }) hass?: HomeAssistant;
 
-  @internalProperty() private _selected = {};
+  @state() private _selected = {};
 
   protected render(): TemplateResult {
     if (!this.hass) {