POC

.devcontainer/Dockerfile

@@ -1,13 +0,0 @@
-# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.148.1/containers/python-3/.devcontainer/base.Dockerfile
-FROM mcr.microsoft.com/vscode/devcontainers/python:0-3.9
-
-ENV \
-  DEBIAN_FRONTEND=noninteractive \
-  DEVCONTAINER=true \
-  PATH=$PATH:./node_modules/.bin
-
-# Install nvm
-COPY .nvmrc /tmp/.nvmrc
-RUN \
-  su vscode -c \
-    "source /usr/local/share/nvm/nvm.sh && nvm install $(cat /tmp/.nvmrc) 2>&1"

.devcontainer/devcontainer.json

@@ -1,34 +0,0 @@
-{
-  "name": "Home Assistant Frontend",
-  "build": {
-    "dockerfile": "Dockerfile",
-    "context": ".."
-  },
-  "appPort": "8124:8123",
-  "context": "..",
-  "postCreateCommand": "script/bootstrap",
-  "extensions": [
-    "github.vscode-pull-request-github",
-    "dbaeumer.vscode-eslint",
-    "ms-vscode.vscode-typescript-tslint-plugin",
-    "esbenp.prettier-vscode",
-    "bierner.lit-html",
-    "runem.lit-plugin",
-    "ms-python.vscode-pylance"
-  ],
-  "settings": {
-    "terminal.integrated.shell.linux": "/bin/bash",
-    "files.eol": "\n",
-    "editor.tabSize": 2,
-    "editor.formatOnPaste": false,
-    "editor.formatOnSave": true,
-    "editor.formatOnType": true,
-    "[typescript]": {
-      "editor.defaultFormatter": "esbenp.prettier-vscode"
-    },
-    "[javascript]": {
-      "editor.defaultFormatter": "esbenp.prettier-vscode"
-    },
-    "files.trimTrailingWhitespace": true
-  }
-}

.eslintrc.json

@@ -4,7 +4,8 @@
     "plugin:@typescript-eslint/recommended",
     "plugin:wc/recommended",
     "plugin:lit/recommended",
-    "prettier"
+    "prettier",
+    "prettier/@typescript-eslint"
   ],
   "parser": "@typescript-eslint/parser",
   "parserOptions": {
@@ -28,89 +29,60 @@
     "__BUILD__": false,
     "__VERSION__": false,
     "__STATIC_PATH__": false,
-    "Polymer": true
+    "Polymer": true,
+    "webkitSpeechRecognition": false,
+    "ResizeObserver": false
   },
   "env": {
     "browser": true,
     "es6": true
   },
   "rules": {
-    "class-methods-use-this": "off",
+    "class-methods-use-this": 0,
-    "new-cap": "off",
+    "new-cap": 0,
-    "prefer-template": "off",
+    "prefer-template": 0,
-    "object-shorthand": "off",
+    "object-shorthand": 0,
-    "func-names": "off",
+    "func-names": 0,
-    "no-underscore-dangle": "off",
+    "prefer-arrow-callback": 0,
-    "strict": "off",
+    "no-underscore-dangle": 0,
-    "no-plusplus": "off",
+    "strict": 0,
-    "no-bitwise": "error",
+    "prefer-spread": 0,
-    "comma-dangle": "off",
+    "no-plusplus": 0,
-    "vars-on-top": "off",
+    "no-bitwise": 2,
-    "no-continue": "off",
+    "comma-dangle": 0,
-    "no-param-reassign": "off",
+    "vars-on-top": 0,
-    "no-multi-assign": "off",
+    "no-continue": 0,
-    "no-console": "error",
+    "no-param-reassign": 0,
-    "radix": "off",
+    "no-multi-assign": 0,
-    "no-alert": "off",
+    "no-console": 2,
-    "no-nested-ternary": "off",
+    "radix": 0,
-    "prefer-destructuring": "off",
+    "no-alert": 0,
+    "no-return-await": 0,
+    "no-nested-ternary": 0,
+    "prefer-destructuring": 0,
     "no-restricted-globals": [2, "event"],
-    "prefer-promise-reject-errors": "off",
+    "prefer-promise-reject-errors": 0,
-    "import/prefer-default-export": "off",
+    "import/order": 0,
-    "import/no-default-export": "off",
+    "import/prefer-default-export": 0,
-    "import/no-unresolved": "off",
+    "import/no-unresolved": 0,
-    "import/no-cycle": "off",
+    "import/no-cycle": 0,
     "import/extensions": [
-      "error",
+      2,
       "ignorePackages",
       { "ts": "never", "js": "never" }
     ],
     "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
-    "object-curly-newline": "off",
+    "object-curly-newline": 0,
-    "default-case": "off",
+    "default-case": 0,
-    "wc/no-self-class": "off",
+    "wc/no-self-class": 0,
-    "no-shadow": "off",
+    "@typescript-eslint/camelcase": 0,
-    "@typescript-eslint/camelcase": "off",
+    "@typescript-eslint/ban-ts-ignore": 0,
-    "@typescript-eslint/ban-ts-comment": "off",
+    "@typescript-eslint/no-use-before-define": 0,
-    "@typescript-eslint/no-use-before-define": "off",
+    "@typescript-eslint/no-non-null-assertion": 0,
-    "@typescript-eslint/no-non-null-assertion": "off",
+    "@typescript-eslint/no-explicit-any": 0,
-    "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/no-unused-vars": 0,
-    "@typescript-eslint/explicit-function-return-type": "off",
+    "@typescript-eslint/explicit-function-return-type": 0
-    "@typescript-eslint/explicit-module-boundary-types": "off",
-    "@typescript-eslint/no-shadow": ["error"],
-    "@typescript-eslint/naming-convention": [
-      "off",
-      {
-        "selector": "default",
-        "format": ["camelCase", "snake_case"],
-        "leadingUnderscore": "allow",
-        "trailingUnderscore": "allow"
   },
-      {
+  "plugins": ["disable", "import", "lit", "prettier", "@typescript-eslint"],
-        "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"
-  },
-  "plugins": ["disable", "unused-imports"],
   "processor": "disable/disable"
 }

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -74,12 +74,12 @@ DO NOT DELETE ANY TEXT from this template! Otherwise, your issue may be closed w
 
 ```
 
-## Problem-relevant frontend configuration
+## Problem-relevant configuration
 
 <!--
-  An example configuration that caused the problem for you, e.g. the YAML configuration
+  An example configuration that caused the problem for you. Fill this out even
-  of the used cards. Fill this out even if it seems unimportant to you. Please be sure
+  if it seems unimportant to you. Please be sure to remove personal information
-  to remove personal information like passwords, private URLs and other credentials.
+  like passwords, private URLs and other credentials.
 -->
 
 ```yaml
@@ -89,7 +89,7 @@ DO NOT DELETE ANY TEXT from this template! Otherwise, your issue may be closed w
 ## Javascript errors shown in your browser console/inspector
 
 <!--
-  If you come across any Javascript or other error logs, e.g. in your browser
+  If you come across any javascript or other error logs, e.g., in your browser
   console/inspector please provide them.
 -->
 

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -0,0 +1,26 @@
+---
+name: Request a feature for the UI, Frontend or Lovelace
+about: Request an new feature for the Home Assistant frontend.
+labels: feature request
+---
+
+<!--
+  DO NOT DELETE ANY TEXT from this template!
+  Otherwise, your request may be closed without comment.
+-->
+
+## The request
+
+<!--
+  Describe to our maintainers, the feature you would like to be added.
+  Please be clear and concise and, if possible, provide a screenshot or mockup.
+-->
+
+## The alternatives
+
+<!--
+  Are you currently using, or have you considered alternatives?
+  If so, could you please describe those?
+-->
+
+## Additional information

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,121 +0,0 @@
-name: Report a bug with the UI, Frontend or Lovelace
-description: Report an issue related to the Home Assistant frontend.
-labels: bug
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Make sure you are running the [latest version of Home Assistant][releases] before reporting an issue.
-
-        If you have a feature or enhancement request for the frontend, please [start an discussion][fr] instead of creating an issue.
-
-        **Please not not report issues for custom Lovelace cards.**
-
-        [fr]: https://github.com/home-assistant/frontend/discussions
-        [releases]: https://github.com/home-assistant/home-assistant/releases
-  - type: checkboxes
-    attributes:
-      label: Checklist
-      description: Please verify that you've followed these steps
-      options:
-        - label: I have updated to the latest available Home Assistant version.
-          required: true
-        - label: I have cleared the cache of my browser.
-          required: true
-        - label: I have tried a different browser to see if it is related to my browser.
-          required: true
-  - type: markdown
-    attributes:
-      value: |
-        ## The problem
-  - type: textarea
-    validations:
-      required: true
-    attributes:
-      label: Describe the issue you are experiencing
-      description: Provide a clear and concise description of what the bug is.
-  - type: textarea
-    validations:
-      required: true
-    attributes:
-      label: Describe the behavior you expected
-      description: Describe what you expected to happen or it should look/behave.
-  - type: textarea
-    validations:
-      required: true
-    attributes:
-      label: Steps to reproduce the issue
-      description: |
-        Please tell us exactly how to reproduce your issue.
-        Provide clear and concise step by step instructions and add code snippets if needed.
-      value: |
-        1.
-        2.
-        3.
-        ...
-  - type: markdown
-    attributes:
-      value: |
-        ## Environment
-  - type: input
-    validations:
-      required: true
-    attributes:
-      label: What version of Home Assistant Core has the issue?
-      placeholder: core-
-      description: >
-        Can be found in the Configuration panel -> Info.
-  - type: input
-    attributes:
-      label: What was the last working version of Home Assistant Core?
-      placeholder: core-
-      description: >
-        If known, otherwise leave blank.
-  - type: input
-    attributes:
-      label: In which browser are you experiencing the issue with?
-      placeholder: Google Chrome 88.0.4324.150
-      description: >
-        Provide the full name and don't forget to add the version!
-  - type: input
-    attributes:
-      label: Which operating system are you using to run this browser?
-      placeholder: macOS Big Sur (1.11)
-      description: >
-        Don't forget to add the version!
-  - type: markdown
-    attributes:
-      value: |
-        # Details
-
-  - type: textarea
-    attributes:
-      label: State of relevant entities
-      description: >
-        If your issue is about how an entity is shown in the UI, please add the
-        state and attributes for all situations. You can find this information
-        at Developer Tools -> States.
-      render: txt
-  - type: textarea
-    attributes:
-      label: Problem-relevant frontend configuration
-      description: >
-        An example configuration that caused the problem for you, e.g., the YAML
-        configuration of the used cards. Fill this out even if it seems
-        unimportant to you. Please be sure to remove personal information like
-        passwords, private URLs and other credentials.
-      render: yaml
-  - type: textarea
-    attributes:
-      label: Javascript errors shown in your browser console/inspector
-      description: >
-        If you come across any Javascript or other error logs, e.g., in your
-        browser console/inspector please provide them.
-      render: txt
-  - type: textarea
-    attributes:
-      label: Additional information
-      description: >
-        If you have any additional information for us, use the field below.
-        Please note, you can attach screenshots or screen recordings here, by
-        dragging and dropping files in the field below.

.github/ISSUE_TEMPLATE/config.yml

@@ -1,8 +1,5 @@
 blank_issues_enabled: false
 contact_links:
-  - name: Request a feature for the UI, Frontend or Lovelace
-    url: https://github.com/home-assistant/frontend/discussions/category_choices
-    about: Request an new feature for the Home Assistant frontend.
   - name: Report a bug that is NOT related to the UI, Frontend or Lovelace
     url: https://github.com/home-assistant/core/issues
     about: This is the issue tracker for our frontend. Please report other issues with the backend repository.

.github/PULL_REQUEST_TEMPLATE.md

@@ -18,8 +18,8 @@
 <!--
   Describe the big picture of your changes here to communicate to the
   maintainers why we should accept this pull request. If it fixes a bug
-  or resolves a feature request, be sure to link to that issue or discussion
+  or resolves a feature request, be sure to link to that issue in the
-  in the additional information section.
+  additional information section.
 -->
 
 ## Type of change
@@ -56,7 +56,7 @@
 -->
 
 - This PR fixes or closes issue: fixes #
-- This PR is related to issue or discussion:
+- This PR is related to issue:
 - Link to documentation pull request:
 
 ## Checklist

.github/lock.yml

@@ -0,0 +1,27 @@
+# Configuration for Lock Threads - https://github.com/dessant/lock-threads
+
+# Number of days of inactivity before a closed issue or pull request is locked
+daysUntilLock: 1
+
+# Skip issues and pull requests created before a given timestamp. Timestamp must
+# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable
+skipCreatedBefore: 2020-01-01
+
+# Issues and pull requests with these labels will be ignored. Set to `[]` to disable
+exemptLabels: []
+
+# Label to add before locking, such as `outdated`. Set to `false` to disable
+lockLabel: false
+
+# Comment to post before locking. Set to `false` to disable
+lockComment: false
+
+# Assign `resolved` as the reason for locking. Set to `false` to disable
+setLockReason: false
+
+# Limit to only `issues` or `pulls`
+only: pulls
+
+# Optionally, specify configuration settings just for `issues` or `pulls`
+issues:
+  daysUntilLock: 30

.github/stale.yml

@@ -0,0 +1,56 @@
+# Configuration for probot-stale - https://github.com/probot/stale
+
+# Number of days of inactivity before an Issue or Pull Request becomes stale
+daysUntilStale: 90
+
+# Number of days of inactivity before an Issue or Pull Request with the stale label is closed.
+# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
+daysUntilClose: 7
+
+# Only issues or pull requests with all of these labels are check if stale. Defaults to `[]` (disabled)
+onlyLabels: []
+
+# Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
+exemptLabels:
+  - feature request
+  - Help wanted
+  - to do
+
+# Set to true to ignore issues in a project (defaults to false)
+exemptProjects: true
+
+# Set to true to ignore issues in a milestone (defaults to false)
+exemptMilestones: true
+
+# Set to true to ignore issues with an assignee (defaults to false)
+exemptAssignees: false
+
+# Label to use when marking as stale
+staleLabel: stale
+
+# Comment to post when marking as stale. Set to `false` to disable
+markComment: >
+  There hasn't been any activity on this issue recently. Due to the high number
+  of incoming GitHub notifications, we have to clean some of the old issues,
+  as many of them have already been resolved with the latest updates.
+
+  Please make sure to update to the latest Home Assistant version and check
+  if that solves the issue. Let us know if that works for you by adding a
+  comment 👍
+
+  This issue now has been marked as stale and will be closed if no further
+  activity occurs. Thank you for your contributions.
+
+# Comment to post when removing the stale label.
+# unmarkComment: >
+#   Your comment here.
+
+# Comment to post when closing a stale Issue or Pull Request.
+# closeComment: >
+#   Your comment here.
+
+# Limit the number of actions per hour, from 1-30. Default is 30
+limitPerRun: 30
+
+# Limit to only `issues` or `pulls`
+only: issues

.github/workflows/ci.yaml

@@ -10,21 +10,26 @@ on:
       - dev
       - master
 
-env:
-  NODE_VERSION: 14
-  NODE_OPTIONS: --max_old_space_size=4096
-
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setting up Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v1
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version: 12.x
-          cache: yarn
+      - name: Get yarn cache path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(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-
       - name: Install dependencies
         run: yarn install
         env:
@@ -32,40 +37,54 @@ jobs:
       - name: Build resources
         run: ./node_modules/.bin/gulp gen-icons-json build-translations gather-gallery-demos
       - name: Run eslint
-        run: yarn run lint:eslint
+        run: ./node_modules/.bin/eslint '{**/src,src}/**/*.{js,ts,html}' --ignore-path .gitignore
       - name: Run tsc
-        run: yarn run lint:types
+        run: ./node_modules/.bin/tsc
-      - 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: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setting up Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v1
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version: 12.x
-          cache: yarn
+      - name: Get yarn cache path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(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-
       - name: Install dependencies
         run: yarn install
         env:
           CI: true
       - name: Run Mocha
-        run: yarn run mocha
+        run: npm run mocha
   build:
     runs-on: ubuntu-latest
     needs: [lint, test]
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setting up Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v1
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version: 12.x
-          cache: yarn
+      - name: Get yarn cache path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(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-
       - name: Install dependencies
         run: yarn install
         env:
@@ -80,11 +99,20 @@ jobs:
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setting up Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v1
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version: 12.x
-          cache: yarn
+      - name: Get yarn cache path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(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-
       - name: Install dependencies
         run: yarn install
         env:

.github/workflows/demo.yaml

@@ -4,22 +4,26 @@ on:
   push:
     branches:
       - dev
-
-env:
-  NODE_VERSION: 14
-  NODE_OPTIONS: --max_old_space_size=4096
-
 jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
         uses: actions/checkout@v2
-      - name: Set up Node ${{ env.NODE_VERSION }}
+      - name: Setting up Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v1
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version: 12.x
-          cache: yarn
+      - name: Get yarn cache path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(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-
       - name: Install dependencies
         run: yarn install
         env:

.github/workflows/lock.yml

@@ -1,20 +0,0 @@
-name: Lock
-
-# yamllint disable-line rule:truthy
-on:
-  schedule:
-    - cron: "0 * * * *"
-
-jobs:
-  lock:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: dessant/lock-threads@v2.0.1
-        with:
-          github-token: ${{ github.token }}
-          issue-lock-inactive-days: "30"
-          issue-exclude-created-before: "2020-10-01T00:00:00Z"
-          issue-lock-reason: ""
-          pr-lock-inactive-days: "1"
-          pr-exclude-created-before: "2020-11-01T00:00:00Z"
-          pr-lock-reason: ""

.github/workflows/netflify.yml

@@ -1,19 +0,0 @@
-name: Netlify
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-
-jobs:
-  trigger_builds:
-    name: Trigger netlify build preview
-    runs-on: "ubuntu-latest"
-    steps:
-      - name: Trigger Cast build
-        run: curl -X POST -d {} https://api.netlify.com/build_hooks/${{ secrets.NETLIFY_CAST_DEV_BUILD_HOOK }}
-
-      - name: Trigger Demo build
-        run: curl -X POST -d {} https://api.netlify.com/build_hooks/${{ 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 }}

.github/workflows/release.yaml

@@ -1,91 +0,0 @@
-name: Release
-
-on:
-  release:
-    types:
-      - published
-
-env:
-  PYTHON_VERSION: 3.8
-  NODE_VERSION: 14
-  NODE_OPTIONS: --max_old_space_size=4096
-
-jobs:
-  release:
-    name: Release
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the repository
-        uses: actions/checkout@v2
-
-      - name: Verify version
-        uses: home-assistant/actions/helpers/verify-version@master
-
-      - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        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: ${{ secrets.LOKALISE_TOKEN }}
-      - name: Build and release package
-        run: |
-          python3 -m pip install twine
-          export TWINE_USERNAME="__token__"
-          export TWINE_PASSWORD="${{ secrets.TWINE_TOKEN }}"
-
-          script/release
-
-  wheels-init:
-    name: Init wheels build
-    needs: release
-    runs-on: ubuntu-latest
-    steps:
-      - name: Generate requirements.txt
-        run: |
-          # Sleep to give pypi time to populate the new version across mirrors
-          sleep 240
-          version=$(echo "${{ github.ref }}" | awk -F"/" '{print $NF}' )
-          echo "home-assistant-frontend==$version" > ./requirements.txt
-
-      - name: Upload requirements.txt
-        uses: actions/upload-artifact@v2
-        with:
-          name: requirements
-          path: ./requirements.txt
-
-  build-wheels:
-    name: Build wheels for ${{ matrix.arch }}
-    needs: wheels-init
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        arch: ["aarch64", "armhf", "armv7", "amd64", "i386"]
-        tag:
-          - "3.9-alpine3.14"
-    steps:
-      - name: Download requirements.txt
-        uses: actions/download-artifact@v2
-        with:
-          name: requirements
-
-      - name: Build wheels
-        uses: home-assistant/wheels@master
-        with:
-          tag: ${{ matrix.tag }}
-          arch: ${{ matrix.arch }}
-          wheels-host: ${{ secrets.WHEELS_HOST }}
-          wheels-key: ${{ secrets.WHEELS_KEY }}
-          wheels-user: wheels
-          requirements: "requirements.txt"

.github/workflows/stale.yml

@@ -1,42 +0,0 @@
-name: Stale
-
-# yamllint disable-line rule:truthy
-on:
-  schedule:
-    - cron: "0 * * * *"
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-      - name: 90 days stale policy
-        uses: actions/stale@v3.0.13
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          days-before-stale: 90
-          days-before-close: 7
-          operations-per-run: 25
-          remove-stale-when-updated: true
-          stale-issue-label: "stale"
-          exempt-issue-labels: "no-stale,Help%20wanted,help-wanted,feature-request,feature%20request"
-          stale-issue-message: >
-            There hasn't been any activity on this issue recently. Due to the
-            high number of incoming GitHub notifications, we have to clean some
-            of the old issues, as many of them have already been resolved with
-            the latest updates.
-
-            Please make sure to update to the latest Home Assistant version and
-            check if that solves the issue. Let us know if that works for you by
-            adding a comment 👍
-
-            This issue has now been marked as stale and will be closed if no
-            further activity occurs. Thank you for your contributions.
-
-          stale-pr-label: "stale"
-          exempt-pr-labels: "no-stale"
-          stale-pr-message: >
-            There hasn't been any activity on this pull request recently. This
-            pull request has been automatically marked as stale because of that
-            and will be closed if no further activity occurs within 7 days.
-
-            Thank you for your contributions.

.github/workflows/translations.yaml

@@ -1,25 +0,0 @@
-name: Translations
-
-on:
-  push:
-    branches:
-      - dev
-    paths:
-      - src/translations/en.json
-
-env:
-  NODE_VERSION: 14
-
-jobs:
-  upload:
-    name: Upload
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the repository
-        uses: actions/checkout@v2
-
-      - name: Upload Translations
-        run: |
-          export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
-
-          ./script/translations_upload_base

.gitignore

@@ -1,23 +1,10 @@
-.DS_Store
-.reify-cache
-
-# build
 build
 build-translations/*
-hass_frontend/*
-dist
-
-# yarn
-.yarn/*
-!.yarn/patches
-!.yarn/releases
-!.yarn/plugins
-!.yarn/sdks
-!.yarn/versions
-.pnp.*
 node_modules/*
-yarn-error.log
 npm-debug.log
+.DS_Store
+hass_frontend/*
+.reify-cache
 
 # Python stuff
 *.py[cod]
@@ -27,23 +14,22 @@ npm-debug.log
 # venv stuff
 pyvenv.cfg
 pip-selfcheck.json
-venv/*
+venv
 .venv
+lib
+bin
+dist
 
 # vscode
 .vscode/*
 !.vscode/extensions.json
-!.vscode/launch.json
-!.vscode/tasks.json
 
 # Cast dev settings
 src/cast/dev_const.ts
 
 # Secrets
 .lokalise_token
+yarn-error.log
 
-# asdf
+#asdf
 .tool-versions
-
-# Home Assistant config
-/config

.hound.yml

@@ -0,0 +1,6 @@
+jshint:
+  enabled: false
+
+eslint:
+  enabled: true
+  config_file: .eslintrc-hound.json

.mocharc.cjs

@@ -1,4 +0,0 @@
-module.exports = {
-  require: "test-mocha/testconf.js",
-  timeout: 10000,
-};

.nvmrc

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

.vscode/launch.json

@@ -1,44 +0,0 @@
-{
-  // https://github.com/microsoft/vscode-js-debug/blob/master/OPTIONS.md
-  "configurations": [
-    {
-      "name": "Debug Frontend",
-      "request": "launch",
-      "type": "pwa-chrome",
-      "url": "http://localhost:8123/",
-      "webRoot": "${workspaceFolder}/hass_frontend",
-      "disableNetworkCache": true,
-      "preLaunchTask": "Develop Frontend",
-      "outFiles": [
-        "${workspaceFolder}/hass_frontend/frontend_latest/*.js"
-      ]
-    },
-    {
-      "name": "Debug Gallery",
-      "request": "launch",
-      "type": "pwa-chrome",
-      "url": "http://localhost:8100/",
-      "webRoot": "${workspaceFolder}/gallery/dist",
-      "disableNetworkCache": true,
-      "preLaunchTask": "Develop Gallery"
-    },
-    {
-      "name": "Debug Demo",
-      "request": "launch",
-      "type": "pwa-chrome",
-      "url": "http://localhost:8090/",
-      "webRoot": "${workspaceFolder}/demo/dist",
-      "disableNetworkCache": true,
-      "preLaunchTask": "Develop Demo"
-    },
-    {
-      "name": "Debug Cast",
-      "request": "launch",
-      "type": "pwa-chrome",
-      "url": "http://localhost:8080/",
-      "webRoot": "${workspaceFolder}/cast/dist",
-      "disableNetworkCache": true,
-      "preLaunchTask": "Develop Cast"
-    },
-  ]
-}

.vscode/tasks.json

@@ -1,208 +0,0 @@
-{
-  "version": "2.0.0",
-  "tasks": [
-    {
-      "label": "Develop Frontend",
-      "type": "gulp",
-      "task": "develop-app",
-      // Sync changes here to other tasks until issue resolved
-      // https://github.com/Microsoft/vscode/issues/61497
-      "problemMatcher": {
-        "owner": "ha-build",
-        "source": "ha-build",
-        "fileLocation": "absolute",
-        "severity": "error",
-        "pattern": [
-          {
-            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
-            "severity": 1,
-            "file": 2,
-            "message": 3,
-            "line": 4,
-            "column": 5
-          }
-        ],
-        "background": {
-          "activeOnStart": true,
-          "beginsPattern": "Changes detected. Starting compilation",
-          "endsPattern": "Build done @"
-        }
-      },
-      "isBackground": true,
-      "group": {
-        "kind": "build",
-        "isDefault": true
-      },
-      "runOptions": {
-        "instanceLimit": 1
-      }
-    },
-    {
-      "label": "Develop Supervisor panel",
-      "type": "gulp",
-      "task": "develop-hassio",
-      "problemMatcher": {
-        "owner": "ha-build",
-        "source": "ha-build",
-        "fileLocation": "absolute",
-        "severity": "error",
-        "pattern": [
-          {
-            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
-            "severity": 1,
-            "file": 2,
-            "message": 3,
-            "line": 4,
-            "column": 5
-          }
-        ],
-        "background": {
-          "activeOnStart": true,
-          "beginsPattern": "Changes detected. Starting compilation",
-          "endsPattern": "Build done @"
-        }
-      },
-      "isBackground": true,
-      "group": "build",
-      "runOptions": {
-        "instanceLimit": 1
-      }
-    },
-    {
-      "label": "Develop Gallery",
-      "type": "gulp",
-      "task": "develop-gallery",
-      "problemMatcher": {
-        "owner": "ha-build",
-        "source": "ha-build",
-        "fileLocation": "absolute",
-        "severity": "error",
-        "pattern": [
-          {
-            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
-            "severity": 1,
-            "file": 2,
-            "message": 3,
-            "line": 4,
-            "column": 5
-          }
-        ],
-        "background": {
-          "activeOnStart": true,
-          "beginsPattern": "Changes detected. Starting compilation",
-          "endsPattern": "Build done @"
-        }
-      },
-
-      "isBackground": true,
-      "group": "build",
-      "runOptions": {
-        "instanceLimit": 1
-      }
-    },
-    {
-      "label": "Develop Demo",
-      "type": "gulp",
-      "task": "develop-demo",
-      "problemMatcher": {
-        "owner": "ha-build",
-        "source": "ha-build",
-        "fileLocation": "absolute",
-        "severity": "error",
-        "pattern": [
-          {
-            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
-            "severity": 1,
-            "file": 2,
-            "message": 3,
-            "line": 4,
-            "column": 5
-          }
-        ],
-        "background": {
-          "activeOnStart": true,
-          "beginsPattern": "Changes detected. Starting compilation",
-          "endsPattern": "Build done @"
-        }
-      },
-
-      "isBackground": true,
-      "group": "build",
-      "runOptions": {
-        "instanceLimit": 1
-      }
-    },
-    {
-      "label": "Develop Cast",
-      "type": "gulp",
-      "task": "develop-cast",
-      "problemMatcher": {
-        "owner": "ha-build",
-        "source": "ha-build",
-        "fileLocation": "absolute",
-        "severity": "error",
-        "pattern": [
-          {
-            "regexp": "(SyntaxError): (.+): (.+) \\((\\d+):(\\d+)\\)",
-            "severity": 1,
-            "file": 2,
-            "message": 3,
-            "line": 4,
-            "column": 5
-          }
-        ],
-        "background": {
-          "activeOnStart": true,
-          "beginsPattern": "Changes detected. Starting compilation",
-          "endsPattern": "Build done @"
-        }
-      },
-
-      "isBackground": true,
-      "group": "build",
-      "runOptions": {
-        "instanceLimit": 1
-      }
-    },
-    {
-      "label": "Run HA Core in devcontainer",
-      "type": "shell",
-      "command": "script/core",
-      "isBackground": true,
-      "group": {
-        "kind": "build",
-        "isDefault": true
-      },
-      "problemMatcher": [],
-      "runOptions": {
-        "instanceLimit": 1
-      }
-    },
-    {
-      "label": "Run HA Core for Supervisor in devcontainer",
-      "type": "shell",
-      "command": "HASSIO=${input:supervisorHost} HASSIO_TOKEN=${input:supervisorToken} script/core",
-      "isBackground": true,
-      "group": {
-        "kind": "build",
-        "isDefault": true
-      },
-      "problemMatcher": [],
-      "runOptions": {
-        "instanceLimit": 1
-      }
-    }
-  ],
-  "inputs": [
-    {
-      "id": "supervisorHost",
-      "type": "promptString",
-      "description": "The IP of the Supervisor host running the Remote API proxy add-on"
-    },
-    {
-      "id": "supervisorToken",
-      "type": "promptString",
-      "description": "The token for the Remote API proxy add-on"
-    }
-  ]
-}

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

@@ -1,29 +0,0 @@
-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/@polymer/polymer/pr-5569.patch

@@ -1,34 +0,0 @@
-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

@@ -1,9 +0,0 @@
-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-2.4.2.cjs

README.md

@@ -14,7 +14,7 @@ This is the repository for the official [Home Assistant](https://home-assistant.
 - Development: [Instructions](https://developers.home-assistant.io/docs/frontend/development/)
 - Production build: `script/build_frontend`
 - Gallery: `cd gallery && script/develop_gallery`
-- Supervisor: [Instructions](https://developers.home-assistant.io/docs/supervisor/developing)
+- Hass.io: [Instructions](https://developers.home-assistant.io/docs/en/hassio_hass.html)
 
 ## Frontend development
 
@@ -26,4 +26,4 @@ A complete guide can be found at the following [link](https://www.home-assistant
 
 Home Assistant is open-source and Apache 2 licensed. Feel free to browse the repository, learn and reuse parts in your own projects.
 
-We use [BrowserStack](https://www.browserstack.com) to test Home Assistant on a large variety of devices.
+We use [BrowserStack](https://www.browserstack.com) to test Home Assistant on a large variation of devices.

azure-pipelines-netlify.yml

@@ -0,0 +1,30 @@
+# https://dev.azure.com/home-assistant
+
+trigger: none
+pr: none
+schedules:
+  - cron: "0 0 * * *"
+    displayName: "build preview"
+    branches:
+      include:
+      - dev
+    always: true
+variables:
+  - group: netlify
+
+jobs:
+
+- job: 'Netlify_preview'
+  pool:
+    vmImage: 'ubuntu-latest'
+  steps:
+  - script: |
+      # Cast
+      curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_CAST}
+
+      # Demo
+      curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_DEMO}
+
+      # Gallery
+      curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_GALLERY}
+    displayName: 'Trigger netlify build preview'

azure-pipelines-release.yml

@@ -0,0 +1,59 @@
+# https://dev.azure.com/home-assistant
+
+trigger:
+  batch: true
+  tags:
+    include:
+      - "*"
+pr: none
+variables:
+  - name: versionWheels
+    value: '1.10.1-3.7-alpine3.11'
+  - name: versionNode
+    value: '12.1'
+  - group: twine
+resources:
+  repositories:
+    - repository: azure
+      type: github
+      name: 'home-assistant/ci-azure'
+      endpoint: 'home-assistant'
+
+
+stages:
+  - stage: "Validate"
+    jobs:
+    - template: templates/azp-job-version.yaml@azure
+
+  - stage: "Build"
+    jobs:
+      - job: "ReleasePython"
+        pool:
+          vmImage: "ubuntu-latest"
+        steps:
+          - task: UsePythonVersion@0
+            displayName: "Use Python 3.7"
+            inputs:
+              versionSpec: "3.7"
+          - task: NodeTool@0
+            displayName: "Use Node $(versionNode)"
+            inputs:
+              versionSpec: "$(versionNode)"
+          - script: pip install twine wheel
+            displayName: "Install tools"
+          - script: |
+              export TWINE_USERNAME="$(twineUser)"
+              export TWINE_PASSWORD="$(twinePassword)"
+
+              script/release
+            displayName: "Build and release package"
+  - stage: "Wheels"
+    jobs:
+      - template: templates/azp-job-wheels.yaml@azure
+        parameters:
+          builderVersion: '$(versionWheels)'
+          wheelsRequirement: 'requirement.txt'
+          preBuild:
+          - script: |
+              sleep 240
+              echo "home-assistant-frontend==$(Build.SourceBranchName)" > requirement.txt

azure-pipelines-translation.yml

@@ -0,0 +1,70 @@
+# https://dev.azure.com/home-assistant
+
+trigger:
+  batch: true
+  branches:
+    include:
+    - dev
+  paths:
+    include:
+    - translations/en.json
+pr: none
+schedules:
+  - cron: "30 0 * * *"
+    displayName: "frontend translation update"
+    branches:
+      include:
+      - dev
+    always: true
+variables:
+- group: translation
+resources:
+  repositories:
+  - repository: azure
+    type: github
+    name: 'home-assistant/ci-azure'
+    endpoint: 'home-assistant'
+
+
+jobs:
+
+- job: 'Upload'
+  pool:
+    vmImage: 'ubuntu-latest'
+  steps:
+  - task: NodeTool@0
+    displayName: 'Use Node 12.x'
+    inputs:
+      versionSpec: '12.x'
+  - script: |
+      export LOKALISE_TOKEN="$(lokaliseToken)"
+      export AZURE_BRANCH="$(Build.SourceBranchName)"
+
+      ./script/translations_upload_base
+    displayName: 'Upload Translation'
+
+- job: 'Download'
+  dependsOn:
+  - 'Upload'
+  condition: or(eq(variables['Build.Reason'], 'Schedule'), eq(variables['Build.Reason'], 'Manual'))
+  pool:
+    vmImage: 'ubuntu-latest'
+  steps:
+  - task: NodeTool@0
+    displayName: 'Use Node 12.x'
+    inputs:
+      versionSpec: '12.x'
+  - template: templates/azp-step-git-init.yaml@azure
+  - script: |
+      export LOKALISE_TOKEN="$(lokaliseToken)"
+      export AZURE_BRANCH="$(Build.SourceBranchName)"
+
+      npm install
+      ./script/translations_download
+    displayName: 'Download Translation'
+  - script: |
+      git checkout dev
+      git add translation
+      git commit -am "[ci skip] Translation update"
+      git push
+    displayName: 'Update translation'

build-scripts/README.md

@@ -1,39 +0,0 @@
-# Bundling Home Assistant Frontend
-
-The Home Assistant build pipeline contains various steps to prepare a build.
-
-- Generating icon files to be included
-- Generating translation files to be included
-- Converting TypeScript, CSS and JSON files to JavaScript
-- Bundling
-- Minifying the files
-- Generating the HTML entrypoint files
-- Generating the service worker
-- Compressing the files
-
-## Converting files
-
-Currently in Home Assistant we use a bundler to convert TypeScript, CSS and JSON files to JavaScript files that the browser understands.
-
-We currently rely on Webpack but also have experimental Rollup support. Both of these programs bundle the converted files in both production and development.
-
-For development, bundling is optional. We just want to get the right files in the browser.
-
-Responsibilities of the converter during development:
-
-- Convert TypeScript to JavaScript
-- Convert CSS to JavaScript that sets the content as the default export
-- Convert JSON to JavaScript that sets the content as the default export
-- Make sure import, dynamic import and web worker references work
-  - Add extensions where missing
-  - Resolve absolute package imports
-- Filter out specific imports/packages
-- Replace constants with values
-
-In production, the following responsibilities are added:
-
-- Minify HTML
-- Bundle multiple imports so that the browser can fetch less files
-- Generate a second version that is ES5 compatible
-
-Configuration for all these steps are specified in [bundle.js](bundle.js).

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

@@ -1,170 +0,0 @@
-/* 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

@@ -1,10 +1,11 @@
-/* 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"),
 ];
@@ -18,8 +19,7 @@ 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/typography.js"),
+    require.resolve("@vaadin/vaadin-material-styles/font-roboto.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
@@ -44,58 +44,44 @@ module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
 });
 
 module.exports.terserOptions = (latestBuild) => ({
-  safari10: !latestBuild,
+  safari10: true,
   ecma: latestBuild ? undefined : 5,
   output: { comments: false },
 });
 
 module.exports.babelOptions = ({ latestBuild }) => ({
   babelrc: false,
-  compact: false,
   presets: [
-    !latestBuild && [
+    !latestBuild && [require("@babel/preset-env").default, { modules: false }],
-      "@babel/preset-env",
+    require("@babel/preset-typescript").default,
-      {
-        useBuiltIns: "entry",
-        corejs: "3.15",
-        bugfixes: true,
-      },
-    ],
-    "@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",
       { loose: true, useBuiltIns: true },
     ],
     // Only support the syntax, Webpack will handle it.
-    "@babel/plugin-syntax-import-meta",
+    "@babel/syntax-dynamic-import",
-    "@babel/plugin-syntax-dynamic-import",
     "@babel/plugin-proposal-optional-chaining",
     "@babel/plugin-proposal-nullish-coalescing-operator",
-    ["@babel/plugin-proposal-decorators", { decoratorsBeforeExport: true }],
+    [
-    ["@babel/plugin-proposal-private-methods", { loose: true }],
+      require("@babel/plugin-proposal-decorators").default,
-    ["@babel/plugin-proposal-private-property-in-object", { loose: true }],
+      { decoratorsBeforeExport: 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/,
     ],
+    [
+      require("@babel/plugin-proposal-class-properties").default,
+      { loose: true },
+    ],
+  ].filter(Boolean),
 });
 
+// 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");
 
@@ -124,7 +110,7 @@ BundleConfig {
 */
 
 module.exports.config = {
-  app({ isProdBuild, latestBuild, isStatsBuild, isWDS }) {
+  app({ isProdBuild, latestBuild, isStatsBuild }) {
     return {
       entry: {
         service_worker: "./src/entrypoints/service_worker.ts",
@@ -139,7 +125,6 @@ module.exports.config = {
       isProdBuild,
       latestBuild,
       isStatsBuild,
-      isWDS,
     };
   },
 

build-scripts/env.js

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
 const fs = require("fs");
 const path = require("path");
 const paths = require("./paths.js");
@@ -7,9 +6,6 @@ module.exports = {
   useRollup() {
     return process.env.ROLLUP === "1";
   },
-  useWDS() {
-    return process.env.WDS === "1";
-  },
   isProdBuild() {
     return (
       process.env.NODE_ENV === "production" || module.exports.isStatsBuild()

build-scripts/gulp/app.js

@@ -12,7 +12,6 @@ require("./webpack.js");
 require("./service-worker.js");
 require("./entry-html.js");
 require("./rollup.js");
-require("./wds.js");
 
 gulp.task(
   "develop-app",
@@ -29,11 +28,7 @@ gulp.task(
       "build-translations"
     ),
     "copy-static-app",
-    env.useWDS()
+    env.useRollup() ? "rollup-watch-app" : "webpack-watch-app"
-      ? "wds-watch-app"
-      : env.useRollup()
-      ? "rollup-watch-app"
-      : "webpack-watch-app"
   )
 );
 
@@ -47,8 +42,8 @@ gulp.task(
     gulp.parallel("gen-icons-json", "build-translations"),
     "copy-static-app",
     env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
-    // Don't compress running tests
+    ...// Don't compress running tests
-    ...(env.isTest() ? [] : ["compress-app"]),
+    (env.isTest() ? [] : ["compress-app"]),
     gulp.parallel(
       "gen-pages-prod",
       "gen-index-app-prod",

build-scripts/gulp/clean.js

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

build-scripts/gulp/entry-html.js

@@ -19,7 +19,6 @@ const renderTemplate = (pth, data = {}, pathFunc = templatePath) => {
   return compiled({
     ...data,
     useRollup: env.useRollup(),
-    useWDS: env.useWDS(),
     renderTemplate,
   });
 };
@@ -91,23 +90,10 @@ gulp.task("gen-pages-prod", (done) => {
 });
 
 gulp.task("gen-index-app-dev", (done) => {
-  let latestAppJS, latestCoreJS, latestCustomPanelJS;
-
-  if (env.useWDS()) {
-    latestAppJS = "http://localhost:8000/src/entrypoints/app.ts";
-    latestCoreJS = "http://localhost:8000/src/entrypoints/core.ts";
-    latestCustomPanelJS =
-      "http://localhost:8000/src/entrypoints/custom-panel.ts";
-  } else {
-    latestAppJS = "/frontend_latest/app.js";
-    latestCoreJS = "/frontend_latest/core.js";
-    latestCustomPanelJS = "/frontend_latest/custom-panel.js";
-  }
-
   const content = renderTemplate("index", {
-    latestAppJS,
+    latestAppJS: "/frontend_latest/app.js",
-    latestCoreJS,
+    latestCoreJS: "/frontend_latest/core.js",
-    latestCustomPanelJS,
+    latestCustomPanelJS: "/frontend_latest/custom-panel.js",
 
     es5AppJS: "/frontend_es5/app.js",
     es5CoreJS: "/frontend_es5/core.js",
@@ -302,23 +288,15 @@ 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"),
     `
-function loadES5() {
+try {
+  new Function("import('${latestEntrypoint}')")();
+} catch (err) {
   var el = document.createElement('script');
   el.src = '${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/gather-static.js

@@ -2,6 +2,7 @@
 
 const gulp = require("gulp");
 const path = require("path");
+const cpx = require("cpx");
 const fs = require("fs-extra");
 const paths = require("../paths");
 
@@ -12,9 +13,7 @@ const polyPath = (...parts) => path.resolve(paths.polymer_dir, ...parts);
 const copyFileDir = (fromFile, toDir) =>
   fs.copySync(fromFile, path.join(toDir, path.basename(fromFile)));
 
-const genStaticPath =
+const genStaticPath = (staticDir) => (...parts) =>
-  (staticDir) =>
-  (...parts) =>
   path.resolve(staticDir, ...parts);
 
 function copyTranslations(staticDir) {
@@ -63,12 +62,9 @@ function copyLoaderJS(staticDir) {
 function copyFonts(staticDir) {
   const staticPath = genStaticPath(staticDir);
   // Local fonts
-  fs.copySync(
+  cpx.copySync(
-    npmPath("roboto-fontface/fonts/roboto/"),
+    npmPath("roboto-fontface/fonts/roboto/*.woff2"),
-    staticPath("fonts/roboto/"),
+    staticPath("fonts/roboto")
-    {
-      filter: (src) => !src.includes(".") || src.endsWith(".woff2"),
-    }
   );
 }
 
@@ -89,11 +85,6 @@ gulp.task("copy-translations-app", async () => {
   copyTranslations(staticDir);
 });
 
-gulp.task("copy-translations-supervisor", async () => {
-  const staticDir = paths.hassio_output_static;
-  copyTranslations(staticDir);
-});
-
 gulp.task("copy-static-app", async () => {
   const staticDir = paths.app_output_static;
   // Basic static files

build-scripts/gulp/hassio.js

@@ -10,8 +10,6 @@ require("./gen-icons-json.js");
 require("./webpack.js");
 require("./compress.js");
 require("./rollup.js");
-require("./gather-static.js");
-require("./translations.js");
 
 gulp.task(
   "develop-hassio",
@@ -22,8 +20,6 @@ gulp.task(
     "clean-hassio",
     "gen-icons-json",
     "gen-index-hassio-dev",
-    "build-supervisor-translations",
-    "copy-translations-supervisor",
     env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
@@ -36,8 +32,6 @@ gulp.task(
     },
     "clean-hassio",
     "gen-icons-json",
-    "build-supervisor-translations",
-    "copy-translations-supervisor",
     env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
     "gen-index-hassio-prod",
     ...// Don't compress running tests

build-scripts/gulp/translations.js

@@ -1,5 +1,3 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
-
 const crypto = require("crypto");
 const del = require("del");
 const path = require("path");
@@ -9,6 +7,7 @@ const gulp = require("gulp");
 const fs = require("fs");
 const foreach = require("gulp-foreach");
 const merge = require("gulp-merge-json");
+const minify = require("gulp-jsonminify");
 const rename = require("gulp-rename");
 const transform = require("gulp-json-transform");
 const { mapFiles } = require("../util");
@@ -28,14 +27,32 @@ gulp.task("translations-enable-merge-backend", (done) => {
   done();
 });
 
-// Panel translations which should be split from the core translations.
+String.prototype.rsplit = function (sep, maxsplit) {
-const TRANSLATION_FRAGMENTS = Object.keys(
+  var split = this.split(sep);
-  require("../../src/translations/en.json").ui.panel
+  return maxsplit
-);
+    ? [split.slice(0, -maxsplit).join(sep)].concat(split.slice(-maxsplit))
+    : split;
+};
+
+// Panel translations which should be split from the core translations. These
+// should mirror the fragment definitions in polymer.json, so that we load
+// additional resources at equivalent points.
+const TRANSLATION_FRAGMENTS = [
+  "config",
+  "history",
+  "logbook",
+  "mailbox",
+  "profile",
+  "shopping-list",
+  "page-authorize",
+  "page-demo",
+  "page-onboarding",
+  "developer-tools",
+];
 
 function recursiveFlatten(prefix, data) {
   let output = {};
-  Object.keys(data).forEach((key) => {
+  Object.keys(data).forEach(function (key) {
     if (typeof data[key] === "object") {
       output = {
         ...output,
@@ -96,19 +113,15 @@ function lokaliseTransform(data, original, file) {
     if (value instanceof Object) {
       output[key] = lokaliseTransform(value, original, file);
     } else {
-      output[key] = value.replace(re_key_reference, (_match, lokalise_key) => {
+      output[key] = value.replace(re_key_reference, (match, key) => {
-        const replace = lokalise_key.split("::").reduce((tr, k) => {
+        const replace = key.split("::").reduce((tr, k) => {
           if (!tr) {
-            throw Error(
+            throw Error(`Invalid key placeholder ${key} in ${file.path}`);
-              `Invalid key placeholder ${lokalise_key} in ${file.path}`
-            );
           }
           return tr[k];
         }, original);
         if (typeof replace !== "string") {
-          throw Error(
+          throw Error(`Invalid key placeholder ${key} in ${file.path}`);
-            `Invalid key placeholder ${lokalise_key} in ${file.path}`
-          );
         }
         return replace;
       });
@@ -117,7 +130,9 @@ function lokaliseTransform(data, original, file) {
   return output;
 }
 
-gulp.task("clean-translations", () => del([workDir]));
+gulp.task("clean-translations", function () {
+  return del([workDir]);
+});
 
 gulp.task("ensure-translations-build-dir", (done) => {
   if (!fs.existsSync(workDir)) {
@@ -126,7 +141,7 @@ gulp.task("ensure-translations-build-dir", (done) => {
   done();
 });
 
-gulp.task("create-test-metadata", (cb) => {
+gulp.task("create-test-metadata", function (cb) {
   fs.writeFile(
     workDir + "/testMetadata.json",
     JSON.stringify({
@@ -140,13 +155,17 @@ gulp.task("create-test-metadata", (cb) => {
 
 gulp.task(
   "create-test-translation",
-  gulp.series("create-test-metadata", () =>
+  gulp.series("create-test-metadata", function createTestTranslation() {
-    gulp
+    return gulp
       .src(path.join(paths.translations_src, "en.json"))
-      .pipe(transform((data, _file) => recursiveEmpty(data)))
+      .pipe(
-      .pipe(rename("test.json"))
+        transform(function (data, file) {
-      .pipe(gulp.dest(workDir))
+          return recursiveEmpty(data);
+        })
       )
+      .pipe(rename("test.json"))
+      .pipe(gulp.dest(workDir));
+  })
 );
 
 /**
@@ -158,7 +177,7 @@ 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", () => {
+gulp.task("build-master-translation", function () {
   const src = [path.join(paths.translations_src, "en.json")];
 
   if (mergeBackend) {
@@ -167,7 +186,11 @@ gulp.task("build-master-translation", () => {
 
   return gulp
     .src(src)
-    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
+    .pipe(
+      transform(function (data, file) {
+        return lokaliseTransform(data, data, file);
+      })
+    )
     .pipe(
       merge({
         fileName: "translationMaster.json",
@@ -176,14 +199,18 @@ gulp.task("build-master-translation", () => {
     .pipe(gulp.dest(workDir));
 });
 
-gulp.task("build-merged-translations", () =>
+gulp.task("build-merged-translations", function () {
-  gulp
+  return gulp
     .src([inFrontendDir + "/*.json", workDir + "/test.json"], {
       allowEmpty: true,
     })
-    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
     .pipe(
-      foreach((stream, file) => {
+      transform(function (data, file) {
+        return lokaliseTransform(data, data, file);
+      })
+    )
+    .pipe(
+      foreach(function (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
@@ -215,17 +242,17 @@ gulp.task("build-merged-translations", () =>
           )
           .pipe(gulp.dest(fullDir));
       })
-    )
+    );
-);
+});
 
-let taskName;
+var taskName;
 
 const splitTasks = [];
 TRANSLATION_FRAGMENTS.forEach((fragment) => {
   taskName = "build-translation-fragment-" + fragment;
-  gulp.task(taskName, () =>
+  gulp.task(taskName, function () {
     // Return only the translations for this fragment.
-    gulp
+    return gulp
       .src(fullDir + "/*.json")
       .pipe(
         transform((data) => ({
@@ -236,33 +263,32 @@ TRANSLATION_FRAGMENTS.forEach((fragment) => {
           },
         }))
       )
-      .pipe(gulp.dest(workDir + "/" + fragment))
+      .pipe(gulp.dest(workDir + "/" + fragment));
-  );
+  });
   splitTasks.push(taskName);
 });
 
 taskName = "build-translation-core";
-gulp.task(taskName, () =>
+gulp.task(taskName, function () {
   // Remove the fragment translations from the core translation.
-  gulp
+  return gulp
     .src(fullDir + "/*.json")
     .pipe(
-      transform((data, _file) => {
+      transform((data, file) => {
         TRANSLATION_FRAGMENTS.forEach((fragment) => {
           delete data.ui.panel[fragment];
         });
-        delete data.supervisor;
         return data;
       })
     )
-    .pipe(gulp.dest(coreDir))
+    .pipe(gulp.dest(coreDir));
-);
+});
 
 splitTasks.push(taskName);
 
-gulp.task("build-flattened-translations", () =>
+gulp.task("build-flattened-translations", function () {
   // Flatten the split versions of our translations, and move them into outDir
-  gulp
+  return gulp
     .src(
       TRANSLATION_FRAGMENTS.map(
         (fragment) => workDir + "/" + fragment + "/*.json"
@@ -270,28 +296,27 @@ gulp.task("build-flattened-translations", () =>
       { base: workDir }
     )
     .pipe(
-      transform((data) =>
+      transform(function (data) {
         // Polymer.AppLocalizeBehavior requires flattened json
-        flatten(data)
+        return flatten(data);
-      )
+      })
     )
+    .pipe(minify())
     .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", () => {
+gulp.task(
+  "build-translation-fingerprints",
+  function fingerprintTranslationFiles() {
     // Fingerprint full file of each language
     const files = fs.readdirSync(fullDir);
 
@@ -307,8 +332,6 @@ gulp.task("build-translation-fingerprints", () => {
       };
     }
 
-  // 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);
 
@@ -324,35 +347,27 @@ gulp.task("build-translation-fingerprints", () => {
         }`
       );
     });
-  }
 
     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", () =>
+gulp.task(
-  gulp
+  "build-translations",
-    .src(workDir + "/supervisor/*.json")
+  gulp.series(
-    .pipe(
+    "clean-translations",
-      transform((data) =>
+    "ensure-translations-build-dir",
-        // Polymer.AppLocalizeBehavior requires flattened json
+    env.isProdBuild() ? (done) => done() : "create-test-translation",
-        flatten(data)
+    "build-master-translation",
-      )
+    "build-merged-translations",
-    )
+    gulp.parallel(...splitTasks),
-    .pipe(gulp.dest(outDir))
+    "build-flattened-translations",
-);
+    "build-translation-fingerprints",
-
+    function writeMetadata() {
-gulp.task("build-translation-write-metadata", () =>
+      return gulp
-  gulp
         .src(
           [
             path.join(paths.translations_src, "translationMetadata.json"),
@@ -363,18 +378,18 @@ gulp.task("build-translation-write-metadata", () =>
         )
         .pipe(merge({}))
         .pipe(
-      transform((data) => {
+          transform(function (data) {
             const newData = {};
             Object.entries(data).forEach(([key, value]) => {
               // Filter out translations without native name.
-          if (value.nativeName) {
+              if (data[key].nativeName) {
-            newData[key] = value;
+                newData[key] = data[key];
               } else {
-            // eslint-disable-next-line no-console
                 console.warn(
                   `Skipping language ${key}. Native name was not translated.`
                 );
               }
+              if (data[key]) newData[key] = value;
             });
             return newData;
           })
@@ -386,41 +401,7 @@ gulp.task("build-translation-write-metadata", () =>
           }))
         )
         .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",
-    "create-translations",
-    "build-translation-fingerprints",
-    "build-translation-write-metadata"
-  )
-);
-
-gulp.task(
-  "build-supervisor-translations",
-  gulp.series(
-    "clean-translations",
-    "ensure-translations-build-dir",
-    "build-master-translation",
-    "build-merged-translations",
-    "build-translation-fragment-supervisor",
-    "build-translation-flatten-supervisor",
-    "build-translation-fingerprints",
-    "build-translation-write-metadata"
   )
 );

build-scripts/gulp/wds.js

@@ -1,11 +0,0 @@
-// Tasks to run Rollup
-const gulp = require("gulp");
-const { startDevServer } = require("@web/dev-server");
-
-gulp.task("wds-watch-app", () => {
-  startDevServer({
-    config: {
-      watch: true,
-    },
-  });
-});

build-scripts/gulp/webpack.js

@@ -1,6 +1,4 @@
-/* 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");
@@ -20,21 +18,6 @@ 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,
- *   contentBase: string,
- *   port: number,
- *   listenHost?: string
- * }}
- */
 const runDevServer = ({
   compiler,
   contentBase,
@@ -45,18 +28,15 @@ const runDevServer = ({
     open: true,
     watchContentBase: true,
     contentBase,
-  }).listen(port, listenHost, (err) => {
+  }).listen(port, listenHost, function (err) {
     if (err) {
       throw err;
     }
     // Server listening
-    log(
+    log("[webpack-dev-server]", `http://localhost:${port}`);
-      "[webpack-dev-server]",
-      `Project is running at http://localhost:${port}`
-    );
   });
 
-const doneHandler = (done) => (err, stats) => {
+const handler = (done) => (err, stats) => {
   if (err) {
     log.error(err.stack || err);
     if (err.details) {
@@ -65,45 +45,37 @@ const doneHandler = (done) => (err, stats) => {
     return;
   }
 
-  if (stats.hasErrors() || stats.hasWarnings()) {
-    // eslint-disable-next-line no-console
-    console.log(stats.toString("minimal"));
-  }
-
   log(`Build done @ ${new Date().toLocaleTimeString()}`);
 
+  if (stats.hasErrors() || stats.hasWarnings()) {
+    log.warn(stats.toString("minimal"));
+  }
+
   if (done) {
     done();
   }
 };
 
-const prodBuild = (conf) =>
-  new Promise((resolve) => {
-    webpack(
-      conf,
-      // Resolve promise when done. Because we pass a callback, webpack closes itself
-      doneHandler(resolve)
-    );
-  });
-
 gulp.task("webpack-watch-app", () => {
-  // This command will run forever because we don't close compiler
+  // we are not calling done, so this command will run forever
-  webpack(
+  webpack(createAppConfig({ isProdBuild: false, latestBuild: true })).watch(
-    process.env.ES5
+    { ignored: /build-translations/ },
-      ? bothBuilds(createAppConfig, { isProdBuild: false })
+    handler()
-      : createAppConfig({ isProdBuild: false, latestBuild: true })
+  );
-  ).watch({ poll: isWsl }, doneHandler());
   gulp.watch(
     path.join(paths.translations_src, "en.json"),
-    gulp.series("create-translations", "copy-translations-app")
+    gulp.series("build-translations", "copy-translations-app")
   );
 });
 
-gulp.task("webpack-prod-app", () =>
+gulp.task(
-  prodBuild(
+  "webpack-prod-app",
-    bothBuilds(createAppConfig, {
+  () =>
-      isProdBuild: true,
+    new Promise((resolve) =>
-    })
+      webpack(
+        bothBuilds(createAppConfig, { isProdBuild: true }),
+        handler(resolve)
+      )
     )
 );
 
@@ -115,11 +87,16 @@ gulp.task("webpack-dev-server-demo", () => {
   });
 });
 
-gulp.task("webpack-prod-demo", () =>
+gulp.task(
-  prodBuild(
+  "webpack-prod-demo",
+  () =>
+    new Promise((resolve) =>
+      webpack(
         bothBuilds(createDemoConfig, {
           isProdBuild: true,
-    })
+        }),
+        handler(resolve)
+      )
     )
 );
 
@@ -133,34 +110,40 @@ gulp.task("webpack-dev-server-cast", () => {
   });
 });
 
-gulp.task("webpack-prod-cast", () =>
+gulp.task(
-  prodBuild(
+  "webpack-prod-cast",
+  () =>
+    new Promise((resolve) =>
+      webpack(
         bothBuilds(createCastConfig, {
           isProdBuild: true,
-    })
+        }),
+
+        handler(resolve)
+      )
     )
 );
 
 gulp.task("webpack-watch-hassio", () => {
-  // This command will run forever because we don't close compiler
+  // we are not calling done, so this command will run forever
   webpack(
     createHassioConfig({
       isProdBuild: false,
       latestBuild: true,
     })
-  ).watch({ ignored: /build-translations/, poll: isWsl }, doneHandler());
+  ).watch({}, handler());
-
-  gulp.watch(
-    path.join(paths.translations_src, "en.json"),
-    gulp.series("build-supervisor-translations", "copy-translations-supervisor")
-  );
 });
 
-gulp.task("webpack-prod-hassio", () =>
+gulp.task(
-  prodBuild(
+  "webpack-prod-hassio",
+  () =>
+    new Promise((resolve) =>
+      webpack(
         bothBuilds(createHassioConfig, {
           isProdBuild: true,
-    })
+        }),
+        handler(resolve)
+      )
     )
 );
 
@@ -173,11 +156,17 @@ gulp.task("webpack-dev-server-gallery", () => {
   });
 });
 
-gulp.task("webpack-prod-gallery", () =>
+gulp.task(
-  prodBuild(
+  "webpack-prod-gallery",
+  () =>
+    new Promise((resolve) =>
+      webpack(
         createGalleryConfig({
           isProdBuild: true,
           latestBuild: true,
-    })
+        }),
+
+        handler(resolve)
+      )
     )
 );

build-scripts/paths.js

@@ -1,5 +1,4 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
+var path = require("path");
-const path = require("path");
 
 module.exports = {
   polymer_dir: path.resolve(__dirname, ".."),
@@ -35,7 +34,6 @@ module.exports = {
 
   hassio_dir: path.resolve(__dirname, "../hassio"),
   hassio_output_root: path.resolve(__dirname, "../hassio/build"),
-  hassio_output_static: path.resolve(__dirname, "../hassio/build/static"),
   hassio_output_latest: path.resolve(
     __dirname,
     "../hassio/build/frontend_latest"

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

@@ -1,3 +1,5 @@
+const path = require("path");
+
 module.exports = function (userOptions = {}) {
   // Files need to be absolute paths.
   // This only works if the file has no exports

build-scripts/rollup.js

@@ -1,10 +1,9 @@
-/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require("path");
 
 const commonjs = require("@rollup/plugin-commonjs");
 const resolve = require("@rollup/plugin-node-resolve");
 const json = require("@rollup/plugin-json");
-const babel = require("@rollup/plugin-babel").babel;
+const babel = require("rollup-plugin-babel");
 const replace = require("@rollup/plugin-replace");
 const visualizer = require("rollup-plugin-visualizer");
 const { string } = require("rollup-plugin-string");
@@ -32,8 +31,8 @@ const createRollupConfig = ({
   isStatsBuild,
   publicPath,
   dontHash,
-  isWDS,
+}) => {
-}) => ({
+  return {
     /**
      * @type { import("rollup").InputOptions }
      */
@@ -52,33 +51,37 @@ const createRollupConfig = ({
           browser: true,
           rootDir: paths.polymer_dir,
         }),
-      commonjs(),
+        commonjs({
+          namedExports: {
+            "js-yaml": ["safeDump", "safeLoad"],
+          },
+        }),
         json(),
         babel({
           ...bundle.babelOptions({ latestBuild }),
           extensions,
-        babelHelpers: isWDS ? "inline" : "bundled",
+          exclude: bundle.babelExclude(),
         }),
         string({
           // Import certain extensions as strings
           include: [path.join(paths.polymer_dir, "node_modules/**/*.css")],
         }),
-      replace(bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })),
+        replace(
-      !isWDS &&
+          bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })
+        ),
         manifest({
           publicPath,
         }),
-      !isWDS && worker(),
+        worker(),
-      !isWDS && dontHashPlugin({ dontHash }),
+        dontHashPlugin({ dontHash }),
-      !isWDS && isProdBuild && terser(bundle.terserOptions(latestBuild)),
+        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 }
@@ -95,40 +98,49 @@ const createRollupConfig = ({
       // https://rollupjs.org/guide/en/#outputassetfilenames
       entryFileNames:
         isProdBuild && !isStatsBuild ? "[name]-[hash].js" : "[name].js",
-    chunkFileNames: isProdBuild && !isStatsBuild ? "c.[hash].js" : "[name].js",
+      chunkFileNames:
-    assetFileNames: isProdBuild && !isStatsBuild ? "a.[hash].js" : "[name].js",
+        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 }) =>
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  createRollupConfig(
+  return createRollupConfig(
     bundle.config.app({
       isProdBuild,
       latestBuild,
       isStatsBuild,
-      isWDS,
     })
   );
+};
 
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  createRollupConfig(
+  return createRollupConfig(
     bundle.config.demo({
       isProdBuild,
       latestBuild,
       isStatsBuild,
     })
   );
+};
 
-const createCastConfig = ({ isProdBuild, latestBuild }) =>
+const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+  return createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+};
 
-const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
+  return createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
+};
 
-const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  createRollupConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
+  return createRollupConfig(
+    bundle.config.gallery({ isProdBuild, latestBuild })
+  );
+};
 
 module.exports = {
   createAppConfig,

build-scripts/util.js

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

build-scripts/webpack.js

@@ -1,25 +1,10 @@
-/* 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 ManifestPlugin = require("webpack-manifest-plugin");
+const WorkerPlugin = require("worker-plugin");
 const paths = require("./paths.js");
-const bundle = require("./bundle.js");
+const bundle = require("./bundle");
-const log = require("fancy-log");
-
-class LogStartCompilePlugin {
-  ignoredFirst = false;
-
-  apply(compiler) {
-    compiler.hooks.beforeCompile.tap("LogStartCompilePlugin", () => {
-      if (!this.ignoredFirst) {
-        this.ignoredFirst = true;
-        return;
-      }
-      log("Changes detected. Starting compilation");
-    });
-  }
-}
 
 const createWebpackConfig = ({
   entry,
@@ -37,7 +22,6 @@ const createWebpackConfig = ({
   const ignorePackages = bundle.ignorePackages({ latestBuild });
   return {
     mode: isProdBuild ? "production" : "development",
-    target: ["web", latestBuild ? "es2017" : "es5"],
     devtool: isProdBuild
       ? "cheap-module-source-map"
       : "eval-cheap-module-source-map",
@@ -46,35 +30,33 @@ const createWebpackConfig = ({
     module: {
       rules: [
         {
-          test: /\.m?js$|\.ts$/,
+          test: /\.js$|\.ts$/,
+          exclude: bundle.babelExclude(),
           use: {
             loader: "babel-loader",
-            options: {
+            options: bundle.babelOptions({ latestBuild }),
-              ...bundle.babelOptions({ latestBuild }),
-              cacheDirectory: !isProdBuild,
-              cacheCompression: false,
-            },
           },
         },
         {
           test: /\.css$/,
-          type: "asset/source",
+          use: "raw-loader",
         },
       ],
     },
     optimization: {
       minimizer: [
         new TerserPlugin({
+          cache: true,
           parallel: true,
           extractComments: true,
+          sourceMap: true,
           terserOptions: bundle.terserOptions(latestBuild),
         }),
       ],
-      moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
-      chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
     },
     plugins: [
-      new WebpackManifestPlugin({
+      new WorkerPlugin(),
+      new ManifestPlugin({
         // Only include the JS of entrypoints
         filter: (file) => file.isInitial && !file.name.endsWith(".map"),
       }),
@@ -100,7 +82,6 @@ const createWebpackConfig = ({
               ? path.resolve(context, resource)
               : require.resolve(resource);
           } catch (err) {
-            // eslint-disable-next-line no-console
             console.error(
               "Error in Home Assistant ignore plugin",
               resource,
@@ -118,25 +99,21 @@ const createWebpackConfig = ({
         new RegExp(bundle.emptyPackages({ latestBuild }).join("|")),
         path.resolve(paths.polymer_dir, "src/util/empty.js")
       ),
-      !isProdBuild && new LogStartCompilePlugin(),
+    ],
-    ].filter(Boolean),
     resolve: {
       extensions: [".ts", ".js", ".json"],
-      alias: {
-        "lit/decorators$": "lit/decorators.js",
-        "lit/directive$": "lit/directive.js",
-        "lit/polyfill-support$": "lit/polyfill-support.js",
-      },
     },
     output: {
       filename: ({ chunk }) => {
-        if (!isProdBuild || isStatsBuild || dontHash.has(chunk.name)) {
+        if (!isProdBuild || dontHash.has(chunk.name)) {
           return `${chunk.name}.js`;
         }
         return `${chunk.name}.${chunk.hash.substr(0, 8)}.js`;
       },
       chunkFilename:
-        isProdBuild && !isStatsBuild ? "[chunkhash:8].js" : "[id].chunk.js",
+        isProdBuild && !isStatsBuild
+          ? "chunk.[chunkhash].js"
+          : "[name].chunk.js",
       path: outputPath,
       publicPath,
       // To silence warning in worker plugin
@@ -145,24 +122,33 @@ const createWebpackConfig = ({
   };
 };
 
-const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  createWebpackConfig(
+  return createWebpackConfig(
     bundle.config.app({ isProdBuild, latestBuild, isStatsBuild })
   );
+};
 
-const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) =>
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  createWebpackConfig(
+  return createWebpackConfig(
     bundle.config.demo({ isProdBuild, latestBuild, isStatsBuild })
   );
+};
 
-const createCastConfig = ({ isProdBuild, latestBuild }) =>
+const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+  return createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+};
 
-const createHassioConfig = ({ isProdBuild, latestBuild }) =>
+const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  createWebpackConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
+  return createWebpackConfig(
+    bundle.config.hassio({ isProdBuild, latestBuild })
+  );
+};
 
-const createGalleryConfig = ({ isProdBuild, latestBuild }) =>
+const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  createWebpackConfig(bundle.config.gallery({ isProdBuild, latestBuild }));
+  return 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/frontend/tree/dev/cast"
+            href="https://github.com/home-assistant/home-assistant-polymer/tree/dev/cast"
             target="_blank"
             >the source code</a
           >.
@@ -212,8 +212,13 @@
           Chromecast is a technology developed by Google, and is available on:
         </p>
         <ul>
-          <li>Google Chrome (all platforms except iOS)</li>
+          <li>Google Chrome (all platforms except on iOS)</li>
-          <li>Microsoft Edge (all platforms)</li>
+          <li>
+            Microsoft Edge (all platforms,
+            <a href="https://www.microsoftedgeinsider.com" target="_blank"
+              >dev and canary builds only</a
+            >)
+          </li>
         </ul>
       </div>
 

cast/src/launcher/entrypoint.ts

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

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

@@ -1,9 +1,16 @@
-import "@material/mwc-button/mwc-button";
 import "@polymer/paper-item/paper-icon-item";
 import "@polymer/paper-listbox/paper-listbox";
 import { Auth, Connection } from "home-assistant-js-websocket";
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import {
-import { customElement, property, state } from "lit/decorators";
+  css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
+  property,
+  internalProperty,
+  TemplateResult,
+} from "lit-element";
 import { CastManager } from "../../../../src/cast/cast_manager";
 import {
   castSendShowLovelaceView,
@@ -25,6 +32,7 @@ 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 {
@@ -34,19 +42,21 @@ class HcCast extends LitElement {
 
   @property() public castManager!: CastManager;
 
-  @state() private askWrite = false;
+  @internalProperty() private askWrite = false;
 
-  @state() private lovelaceConfig?: LovelaceConfig | null;
+  @internalProperty() private lovelaceConfig?: LovelaceConfig | null;
 
   protected render(): TemplateResult {
     if (this.lovelaceConfig === undefined) {
-      return html`<hass-loading-screen no-toolbar></hass-loading-screen>`;
+      return html` <hass-loading-screen no-toolbar></hass-loading-screen>> `;
     }
 
     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;
 
@@ -196,7 +206,7 @@ class HcCast extends LitElement {
     }
   }
 
-  static get styles(): CSSResultGroup {
+  static get styles(): CSSResult {
     return css`
       .center-item {
         display: flex;

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

@@ -11,8 +11,15 @@ import {
   getAuth,
   getAuthOptions,
 } from "home-assistant-js-websocket";
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import {
-import { customElement, state } from "lit/decorators";
+  css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
+  TemplateResult,
+  internalProperty,
+} from "lit-element";
 import { CastManager, getCastManager } from "../../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../../src/cast/receiver_messages";
 import {
@@ -53,19 +60,19 @@ const INTRO = html`
 
 @customElement("hc-connect")
 export class HcConnect extends LitElement {
-  @state() private loading = false;
+  @internalProperty() private loading = false;
 
   // If we had stored credentials but we cannot connect,
   // show a screen asking retry or logout.
-  @state() private cannotConnect = false;
+  @internalProperty() private cannotConnect = false;
 
-  @state() private error?: string | TemplateResult;
+  @internalProperty() private error?: string | TemplateResult;
 
-  @state() private auth?: Auth;
+  @internalProperty() private auth?: Auth;
 
-  @state() private connection?: Connection;
+  @internalProperty() private connection?: Connection;
 
-  @state() private castManager?: CastManager | null;
+  @internalProperty() private castManager?: CastManager | null;
 
   private openDemo = false;
 
@@ -79,7 +86,9 @@ 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>
@@ -290,7 +299,7 @@ export class HcConnect extends LitElement {
     }
   }
 
-  static get styles(): CSSResultGroup {
+  static get styles(): CSSResult {
     return css`
       .card-content a {
         color: var(--primary-color);

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

@@ -4,8 +4,15 @@ import {
   getUser,
   HassUser,
 } from "home-assistant-js-websocket";
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import {
-import { customElement, property } from "lit/decorators";
+  css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
+  property,
+  TemplateResult,
+} from "lit-element";
 import "../../../../src/components/ha-card";
 
 @customElement("hc-layout")
@@ -23,7 +30,7 @@ class HcLayout extends LitElement {
       <ha-card>
         <div class="layout">
           <img class="hero" src="/images/google-nest-hub.png" />
-          <h1 class="card-header">
+          <div class="card-header">
             Home Assistant Cast${this.subtitle ? ` – ${this.subtitle}` : ""}
             ${this.auth
               ? html`
@@ -37,7 +44,7 @@ class HcLayout extends LitElement {
                   </div>
                 `
               : ""}
-          </h1>
+          </div>
           <slot></slot>
         </div>
       </ha-card>
@@ -62,7 +69,7 @@ class HcLayout extends LitElement {
     }
   }
 
-  static get styles(): CSSResultGroup {
+  static get styles(): CSSResult {
     return css`
       :host {
         display: flex;
@@ -91,12 +98,8 @@ class HcLayout extends LitElement {
         line-height: 32px;
         padding: 24px 16px 16px;
         display: block;
-        margin: 0;
       }
 
-      .hero {
-        border-radius: 4px 4px 0 0;
-      }
       .subtitle {
         font-size: 14px;
         color: var(--secondary-text-color);

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

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

cast/src/receiver/entrypoint.ts

@@ -6,60 +6,13 @@ import { castContext } from "./cast_context";
 import { HcMain } from "./layout/hc-main";
 import { ReceivedMessage } from "./types";
 
-const lovelaceController = new HcMain();
+const controller = new HcMain();
-document.body.append(lovelaceController);
+document.body.append(controller);
-
-const mediaPlayer = document.createElement("cast-media-player");
-mediaPlayer.style.display = "none";
-document.body.append(mediaPlayer);
-const playerStylesAdded = false;
-
-let controls: HTMLElement | null;
-
-const setTouchControlsVisibility = (visible: boolean) => {
-  if (!castContext.getDeviceCapabilities().touch_input_supported) {
-    return;
-  }
-  controls =
-    controls ||
-    (document.body.querySelector("touch-controls") as HTMLElement | null);
-  if (controls) {
-    controls.style.display = visible ? "initial" : "none";
-  }
-};
-
-const showLovelaceController = () => {
-  mediaPlayer.style.display = "none";
-  lovelaceController.style.display = "initial";
-  document.body.setAttribute("style", "overflow-y: auto !important");
-  setTouchControlsVisibility(false);
-};
-
-const showMediaPlayer = () => {
-  lovelaceController.style.display = "none";
-  mediaPlayer.style.display = "initial";
-  document.body.removeAttribute("style");
-  setTouchControlsVisibility(true);
-  if (!playerStylesAdded) {
-    const style = document.createElement("style");
-    style.innerHTML = `
-    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;
-    }
-    `;
-    document.head.appendChild(style);
-  }
-};
 
 const options = new cast.framework.CastReceiverOptions();
 options.disableIdleTimeout = true;
 options.customNamespaces = {
+  // @ts-ignore
   [CAST_NS]: cast.framework.system.MessageType.JSON,
 };
 
@@ -77,61 +30,13 @@ options.uiConfig = new cast.framework.ui.UiConfig();
 // @ts-ignore
 options.uiConfig.touchScreenOptimizedApp = true;
 
-castContext.setInactivityTimeout(86400); // 1 day
-
 castContext.addCustomMessageListener(
   CAST_NS,
   // @ts-ignore
   (ev: ReceivedMessage<HassMessage>) => {
-    // We received a show Lovelace command, stop media from playing, hide media player and show Lovelace controller
-    if (
-      playerManager.getPlayerState() !==
-      cast.framework.messages.PlayerState.IDLE
-    ) {
-      playerManager.stop();
-    } else {
-      showLovelaceController();
-    }
     const msg = ev.data;
     msg.senderId = ev.senderId;
-    lovelaceController.processIncomingMessage(msg);
+    controller.processIncomingMessage(msg);
-  }
-);
-
-const playerManager = castContext.getPlayerManager();
-
-playerManager.setMessageInterceptor(
-  cast.framework.messages.MessageType.LOAD,
-  (loadRequestData) => {
-    // We received a play media command, hide Lovelace and show media player
-    showMediaPlayer();
-    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;
-  }
-);
-
-playerManager.addEventListener(
-  cast.framework.events.EventType.MEDIA_STATUS,
-  (event) => {
-    if (
-      event.mediaStatus?.playerState ===
-        cast.framework.messages.PlayerState.IDLE &&
-      event.mediaStatus?.idleReason &&
-      event.mediaStatus?.idleReason !==
-        cast.framework.messages.IdleReason.INTERRUPTED
-    ) {
-      // media finished or stopped, return to default Lovelace
-      showLovelaceController();
-    }
   }
 );
 

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

@@ -1,5 +1,10 @@
-import { html, TemplateResult } from "lit";
+import {
-import { customElement, property, state } from "lit/decorators";
+  customElement,
+  html,
+  property,
+  internalProperty,
+  TemplateResult,
+} from "lit-element";
 import { mockHistory } from "../../../../demo/src/stubs/history";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import {
@@ -16,7 +21,7 @@ import "./hc-lovelace";
 class HcDemo extends HassElement {
   @property({ attribute: false }) public lovelacePath!: string;
 
-  @state() private _lovelaceConfig?: LovelaceConfig;
+  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
 
   protected render(): TemplateResult {
     if (!this._lovelaceConfig) {
@@ -33,10 +38,10 @@ class HcDemo extends HassElement {
 
   protected firstUpdated(changedProps) {
     super.firstUpdated(changedProps);
-    this._initializeHass();
+    this._initialize();
   }
 
-  private async _initializeHass() {
+  private async _initialize() {
     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

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

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

@@ -1,7 +1,15 @@
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import {
-import { customElement, property } from "lit/decorators";
+  css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
+  property,
+  TemplateResult,
+} from "lit-element";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
 import { Lovelace } from "../../../../src/panels/lovelace/types";
+import "../../../../src/panels/lovelace/views/hui-panel-view";
 import "../../../../src/panels/lovelace/views/hui-view";
 import { HomeAssistant } from "../../../../src/types";
 import "./hc-launch-screen";
@@ -28,21 +36,29 @@ class HcLovelace extends LitElement {
     }
     const lovelace: Lovelace = {
       config: this.lovelaceConfig,
-      rawConfig: this.lovelaceConfig,
       editMode: false,
       urlPath: this.urlPath!,
       enableFullEditMode: () => undefined,
       mode: "storage",
-      locale: this.hass.locale,
+      language: "en",
       saveConfig: async () => undefined,
       deleteConfig: async () => undefined,
       setEditMode: () => undefined,
     };
-    return html`
+    return this.lovelaceConfig.views[index].panel
+      ? html`
+          <hui-panel-view
+            .hass=${this.hass}
+            .lovelace=${lovelace}
+            .config=${this.lovelaceConfig.views[index]}
+          ></hui-panel-view>
+        `
+      : html`
           <hui-view
             .hass=${this.hass}
             .lovelace=${lovelace}
             .index=${index}
+            columns="2"
           ></hui-view>
         `;
   }
@@ -60,7 +76,7 @@ class HcLovelace extends LitElement {
 
         if (configBackground) {
           (this.shadowRoot!.querySelector(
-            "hui-view"
+            "hui-view, hui-panel-view"
           ) as HTMLElement)!.style.setProperty(
             "--lovelace-background",
             configBackground
@@ -84,11 +100,10 @@ class HcLovelace extends LitElement {
     return undefined;
   }
 
-  static get styles(): CSSResultGroup {
+  static get styles(): CSSResult {
     return css`
       :host {
         min-height: 100vh;
-        height: 0;
         display: flex;
         flex-direction: column;
         box-sizing: border-box;

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

@@ -3,8 +3,12 @@ import {
   getAuth,
   UnsubscribeFunc,
 } from "home-assistant-js-websocket";
-import { html, TemplateResult } from "lit";
+import {
-import { customElement, state } from "lit/decorators";
+  customElement,
+  html,
+  internalProperty,
+  TemplateResult,
+} from "lit-element";
 import { CAST_NS } from "../../../../src/cast/const";
 import {
   ConnectMessage,
@@ -32,13 +36,13 @@ let resourcesLoaded = false;
 
 @customElement("hc-main")
 export class HcMain extends HassElement {
-  @state() private _showDemo = false;
+  @internalProperty() private _showDemo = false;
 
-  @state() private _lovelaceConfig?: LovelaceConfig;
+  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
 
-  @state() private _lovelacePath: string | number | null = null;
+  @internalProperty() private _lovelacePath: string | number | null = null;
 
-  @state() private _error?: string;
+  @internalProperty() private _error?: string;
 
   private _unsubLovelace?: UnsubscribeFunc;
 
@@ -212,22 +216,18 @@ export class HcMain extends HassElement {
     }
     this._showDemo = false;
     this._lovelacePath = msg.viewPath;
-
+    if (castContext.getDeviceCapabilities().touch_input_supported) {
+      this._breakFree();
+    }
     this._sendStatus();
   }
 
   private async _generateLovelaceConfig() {
-    const { generateLovelaceDashboardStrategy } = await import(
+    const { generateLovelaceConfigFromHass } = await import(
-      "../../../../src/panels/lovelace/strategies/get-strategy"
+      "../../../../src/panels/lovelace/common/generate-lovelace-config"
     );
     this._handleNewLovelaceConfig(
-      await generateLovelaceDashboardStrategy(
+      await generateLovelaceConfigFromHass(this.hass!)
-        {
-          hass: this.hass!,
-          narrow: false,
-        },
-        "original-states"
-      )
     );
   }
 
@@ -241,6 +241,9 @@ export class HcMain extends HassElement {
       this._showDemo = true;
       this._lovelacePath = "overview";
       this._sendStatus();
+      if (castContext.getDeviceCapabilities().touch_input_supported) {
+        this._breakFree();
+      }
     });
   }
 
@@ -261,6 +264,14 @@ export class HcMain extends HassElement {
     }
   }
 
+  private _breakFree() {
+    const controls = document.body.querySelector("touch-controls");
+    if (controls) {
+      controls.remove();
+    }
+    document.body.setAttribute("style", "overflow-y: auto !important");
+  }
+
   private sendMessage(senderId: string, response: any) {
     castContext.sendCustomMessage(CAST_NS, senderId, response);
   }

cast/src/receiver/second-load.ts

@@ -1,4 +1,4 @@
 import "web-animations-js/web-animations-next-lite.min";
-import "../../../src/resources/ha-style";
 import "../../../src/resources/roboto";
+import "../../../src/resources/ha-style";
 import "./layout/hc-lovelace";