Fix lint

This replaces PR:
- #785

Before:

![image](https://github.com/maplibre/maputnik/assets/3269297/95297211-4108-43d8-8a43-42f87e2fbe16)
After:

![image](https://github.com/maplibre/maputnik/assets/3269297/86c3ae58-1bb7-4d2c-8ad9-6b84a21c96f7)

This is based on the geocoder example in maplibre docs:
https://maplibre.org/maplibre-gl-js/docs/examples/geocoder/

.babelrc

@@ -1,20 +0,0 @@
-{
-  "presets": [
-    "@babel/preset-env",
-    "@babel/preset-react"
-  ],
-  "plugins": [
-    "static-fs",
-    "react-hot-loader/babel",
-    "@babel/plugin-proposal-class-properties"
-  ],
-  "env": {
-    "test": {
-      "plugins": [
-        ["istanbul", {
-          "exclude": ["node_modules/**", "test/**"]
-        }]
-      ]
-    }
-  }
-}

.circleci/config.yml

@@ -1,102 +0,0 @@
-version: 2
-templates:
-  # Test the build **only** no webdriver
-  build-steps: &build-steps
-    - checkout
-    - run:
-        name: "Create artifacts directory"
-        command: mkdir /tmp/artifacts
-    - restore_cache:
-        key: v1-dependencies-{{ arch }}-{{ checksum "package.json" }}
-
-    - run: npm install
-
-    - save_cache:
-        paths:
-          - node_modules
-        key: v1-dependencies-{{ arch }}-{{ checksum "package.json" }}
-
-    - run: mkdir -p /tmp/artifacts/logs
-    - run: npm run build
-    - run: npm run lint
-    - run: npm run lint-styles
-    - store_artifacts:
-        path: /tmp/artifacts
-        destination: /artifacts
-  # Test in webdriver
-  wdio-steps: &wdio-steps
-    - checkout
-    - run:
-        name: "Create artifacts directory"
-        command: mkdir /tmp/artifacts
-    - restore_cache:
-        key: v1-dependencies-{{ arch }}-{{ checksum "package.json" }}
-
-    - run: npm install
-
-    - save_cache:
-        paths:
-          - node_modules
-        key: v1-dependencies-{{ arch }}-{{ checksum "package.json" }}
-
-    - run: mkdir -p /tmp/artifacts/logs
-    - run: npm run build
-    - run: npm run lint
-    - run: npm run lint-styles
-    - run: DOCKER_HOST=localhost npm test
-    - run: ./node_modules/.bin/istanbul report --include /tmp/artifacts/coverage/coverage.json --dir /tmp/artifacts/coverage html lcov
-    - store_artifacts:
-        path: /tmp/artifacts
-        destination: /artifacts
-jobs:
-  build-linux-node-v8:
-    docker:
-      - image: node:8
-    working_directory: ~/repo-linux-node-v8
-    steps: *build-steps
-  build-linux-node-v10:
-    docker:
-      - image: node:10
-      - image: selenium/standalone-chrome:3.141.59
-    working_directory: ~/repo-linux-node-v10
-    steps: *wdio-steps
-  build-linux-node-v12:
-    docker:
-      - image: node:12
-    working_directory: ~/repo-linux-node-v12
-    steps: *build-steps
-  build-osx-node-v8:
-    macos:
-      xcode: "9.0"
-    dependencies:
-      override:
-        - brew install node@8
-    working_directory: ~/repo-osx-node-v8
-    steps: *build-steps
-  build-osx-node-v10:
-    macos:
-      xcode: "9.0"
-    dependencies:
-      override:
-        - brew install node@10
-    working_directory: ~/repo-osx-node-v10
-    steps: *build-steps
-  build-osx-node-v12:
-    macos:
-      xcode: "9.0"
-    dependencies:
-      override:
-        - brew install node@12
-    working_directory: ~/repo-osx-node-v12
-    steps: *build-steps
-
-workflows:
-  version: 2
-  build:
-    jobs:
-      - build-linux-node-v8
-      - build-linux-node-v10
-      - build-linux-node-v12
-      - build-osx-node-v8
-      - build-osx-node-v10
-      - build-osx-node-v12

.dockerignore

@@ -0,0 +1,45 @@
+.git
+.gitignore
+Dockerfile
+
+#
+#
+#     COPIED FROM .gitignore , please keep it in sync
+#
+#
+
+# Logs
+logs
+*.log
+*.swp
+*.swo
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directory
+# https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
+node_modules
+
+# Ignore build files
+public
+/errorShots
+/old
+/build

.eslintrc

@@ -0,0 +1,46 @@
+{
+    "root": true,
+    "env": { 
+      "browser": true, 
+      "es2020": true 
+    },
+    "extends": [
+      "eslint:recommended",
+      "plugin:react/recommended",
+      "plugin:react/jsx-runtime",
+      "plugin:react-hooks/recommended",
+    ],
+    "ignorePatterns": [
+      "dist"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": { 
+      "ecmaVersion": "latest", 
+      "sourceType": "module" 
+    },
+    "settings": { 
+      "react": { "version": "16.4" } 
+    },
+    "plugins": [
+      "@typescript-eslint",
+      "react-refresh"],
+    "rules": {
+      "react-refresh/only-export-components": [
+        "warn",
+        { "allowConstantExport": true }
+      ],
+      "@typescript-eslint/no-unused-vars": [
+        "warn",
+        { "argsIgnorePattern": "^_" }
+      ],
+      "no-unused-vars": "off",
+      "react/prop-types": ["off"],
+      // Disable no-undef. It's covered by @typescript-eslint
+      "no-undef": "off",
+      "indent": ["error", 2],
+      "no-var": ["error"]
+    },
+    "globals": {
+      "global": "readonly"
+  }
+}

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: [maplibre]
+open_collective: maplibre

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,27 @@
+---
+name: Bug report
+about: Create a report to help us improve Maputnik
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- Thanks for your feedback! Please complete the following information: -->
+
+**Maputnik version**:<!-- e.g v1.7.0, main -->
+**Browser**:
+**OS**:<!-- (Windows, macOS, Linux) -->
+
+**Description of the bug**:
+
+**Steps to reproduce the behavior**:
+1.
+2.
+3.
+
+**Style file or style URL**:
+<!-- If applicable, attach a style file (zip) or provide a style URL. -->
+
+**Screenshots**:
+<!-- If applicable, add screenshots to help explain your problem. -->

.github/ISSUE_TEMPLATE/other-issue.md

@@ -0,0 +1,11 @@
+---
+name: Other issue
+about: Feature request or other issue which is no bug report
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- Thanks for reaching out! If you are having general Maputnik mapping questions, please asking them at https://gis.stackexchange.com/ using the 'maputnik' tag https://gis.stackexchange.com/questions/tagged/maputnik and read https://gis.stackexchange.com/help/how-to-ask before you do so (please keep in mind that you're asking there in a general GIS forum, not a dedicated support channel) -->
+

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    open-pull-requests-limit: 2
+    versioning-strategy: increase
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    open-pull-requests-limit: 2
+    versioning-strategy: increase

.github/workflows/ci.yml

@@ -0,0 +1,119 @@
+name: ci
+
+on:
+  pull_request:
+    branches: [ main ]
+  push:
+    branches: [ main ]
+
+jobs:
+  build-docker:
+    name: build docker
+    runs-on: ubuntu-latest
+
+    if: ${{ github.event_name == 'push' || github.event_name == 'pull_request' }}
+
+    steps:
+    - uses: actions/checkout@v4
+    - run: docker build -t test-docker-image-build .
+
+  # build the editor
+  build-node:
+    name: "build on ${{ matrix.os }}"
+    runs-on: ${{ matrix.os }}
+
+    if: ${{ github.event_name == 'push' || github.event_name == 'pull_request' }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+      with:
+        node-version-file: '.nvmrc'
+    - run: npm ci
+    - run: npm run build
+    - run: npm run lint
+    - run: npm run lint-css
+
+
+
+  build-artifacts:
+    name: "build artifacts"
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name == 'push' || github.event_name == 'pull_request' }}
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+      with:
+        node-version-file: '.nvmrc'
+    - run: npm ci
+    - run: npm run build
+    - name: artifacts/maputnik
+      uses: actions/upload-artifact@v1
+      with:
+        name: maputnik
+        path: dist
+
+    # Build and upload desktop CLI artifacts
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: ^1.19.x
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v4
+      with:
+        repository: maputnik/desktop
+        ref: master
+        path: ./src/github.com/maputnik/desktop/
+
+    - name: Make
+      run: cd src/github.com/maputnik/desktop/ && make
+
+    - name: Artifacts/linux
+      uses: actions/upload-artifact@v1
+      with:
+        name: maputnik-linux
+        path: ./src/github.com/maputnik/desktop/bin/linux/
+
+    - name: Artifacts/darwin
+      uses: actions/upload-artifact@v1
+      with:
+        name: maputnik-darwin
+        path: ./src/github.com/maputnik/desktop/bin/darwin/
+
+    - name: Artifacts/windows
+      uses: actions/upload-artifact@v1
+      with:
+        name: maputnik-windows
+        path: ./src/github.com/maputnik/desktop/bin/windows/
+  
+  e2e-tests:
+    name: "E2E tests using ${{ matrix.browser }}"
+    strategy:
+      fail-fast: false
+      matrix:
+        browser: [chrome, firefox]
+
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - run: npm ci
+      - name: Cypress run
+        uses: cypress-io/github-action@v6
+        with:
+          build: npm run build
+          start: npm run start
+          browser: ${{ matrix.browser }}
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          files: ${{ github.workspace }}/.nyc_output/out.json
+          verbose: true

.github/workflows/deploy.yml

@@ -0,0 +1,51 @@
+name: deploy
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  deploy-pages:
+    name: deploy/pages
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name == 'push' }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js from nvmrc
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: '.nvmrc'
+
+      - name: Install
+        run: npm ci
+
+      - name: Build 
+        run: npm run build
+
+      - name: Upload to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: dist
+  
+  # publish docker to GitHub registry
+  deploy-docker:
+    name: deploy/docker
+    runs-on: ubuntu-latest
+
+    if: ${{ github.event_name == 'push' }}
+
+    strategy:
+      fail-fast: false
+
+    steps:
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - uses: actions/checkout@v4
+    - run: docker build -t ghcr.io/maplibre/maputnik:main .
+    - run: docker push ghcr.io/maplibre/maputnik:main

.gitignore

@@ -14,6 +14,7 @@ lib-cov
 
 # Coverage directory used by tools like istanbul
 coverage
+.nyc_output
 
 # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
 .grunt
@@ -33,3 +34,5 @@ public
 /errorShots
 /old
 /build
+/cypress/screenshots
+/dist/

.nvmrc

@@ -0,0 +1 @@
+18.19

.nycrc.json

@@ -0,0 +1,18 @@
+{
+  "all": true,
+  "extends": "@istanbuljs/nyc-config-typescript",
+  "check-coverage": false,
+  "include": ["src/**/*.ts", "src/**/*.tsx"],
+  "exclude": [
+    "cypress/**/*.*",
+    "**/*.d.ts",
+    "**/*.cy.tsx",
+    "**/*.cy.ts",
+    "./coverage/**",
+    "./cypress/**",
+    "./dist/**",
+    "node_modules"
+  ],
+  "report-dir": "coverage",
+  "reporter": ["json", "lcov", "json-summary"]
+}

CODE_OF_CONDUCT.md

@@ -0,0 +1,2 @@
+# Contributor Covenant
+[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](https://github.com/maplibre/maplibre/blob/main/CODE_OF_CONDUCT.md)

Dockerfile

@@ -1,21 +1,16 @@
-FROM node:10-slim
+FROM node:18 as builder
+WORKDIR /maputnik
 
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    git \
-    python \
- && rm -rf /var/lib/apt/lists/*
+# Only copy package.json to prevent npm install from running on every build
+COPY package.json package-lock.json ./
+RUN npm install
 
-EXPOSE 8888
+# Build maputnik
+COPY . .
+RUN npx vite build
 
-ENV HOME /maputnik
-RUN mkdir ${HOME}
+#---------------------------------------------------------------------------
+# Create a clean nginx-alpine slim image with just the build results
+FROM nginx:alpine-slim
 
-COPY . ${HOME}/
-
-WORKDIR ${HOME}
-
-RUN npm install -d
-RUN npm run build
-
-WORKDIR ${HOME}/build/build
-CMD python -m SimpleHTTPServer 8888
+COPY --from=builder /maputnik/dist /usr/share/nginx/html/

LICENSE

@@ -1,6 +1,7 @@
 The MIT License (MIT)
 
 Copyright (c) 2015 Lukas Martinelli
+Copyright (c) 2024 MapLibre contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,68 +1,61 @@
-# Maputnik
+<img width="200" alt="Maputnik logo" src="https://cdn.jsdelivr.net/gh/maputnik/design/logos/logo-color.png" />
 
-[![Build Status](https://circleci.com/gh/maputnik/editor/tree/master.svg?style=shield)][circleci]
-[![Windows Build Status](https://ci.appveyor.com/api/projects/status/anelbgv6jdb3qnh9/branch/master?svg=true)][appveyor]
-[![Dependency Status](https://david-dm.org/maputnik/editor.svg)][dm-prod]
-[![Dev Dependency Status](https://david-dm.org/maputnik/editor/dev-status.svg)][dm-dev]
+# Maputnik
+[![GitHub CI status](https://github.com/maplibre/maputnik/workflows/ci/badge.svg)][github-action-ci]
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)][license]
 
-[circleci]:    https://circleci.com/gh/maputnik/editor/tree/master
-[appveyor]:    https://ci.appveyor.com/project/lukasmartinelli/editor
-[dm-prod]:     https://david-dm.org/maputnik/editor
-[dm-dev]:      https://david-dm.org/maputnik/editor?type=dev
-[license]:     https://tldrlegal.com/license/mit-license
+[github-action-ci]: https://github.com/maplibre/maputnik/actions?query=workflow%3Aci
+[license]:          https://tldrlegal.com/license/mit-license
 
-<img width="200" align="right" alt="Maputnik" src="https://cdn.jsdelivr.net/gh/maputnik/editor@1.5.0/src/img/maputnik.png" />
-
-A free and open visual editor for the [Mapbox GL styles](https://www.mapbox.com/mapbox-gl-style-spec/)
+A free and open visual editor for the [MapLibre GL styles](https://maplibre.org/maplibre-style-spec/)
 targeted at developers and map designers.
 
-- :link: Design your maps online at **<https://maputnik.github.io/editor/>** (all in local storage)
-- :link: Use the [Maputnik CLI](https://github.com/maputnik/editor/wiki/Maputnik-CLI) for local style development
 
-Mapbox has built one of the best and most amazing OSS ecosystems. A key component to ensure its longevity and independence is an OSS map designer.
+## Usage
 
+- :link: Design your maps online at **<https://www.maplibre.org/maputnik/>** (all in local storage)
+- :link: Use the [Maputnik CLI](https://github.com/maplibre/maputnik/wiki/Maputnik-CLI) for local style development
+- In a Docker, run this command and browse to http://localhost:8888, Ctrl+C to stop the server.
 
-## Donations
-If you or your organisation has seen value from Maputnik, please consider donating at <https://maputnik.github.io/donate>
-
+```bash
+docker run -it --rm -p 8888:8888 ghcr.io/maplibre/maputnik:main
+```
 
 ## Documentation
 
-The documentation can be found in the [Wiki](https://github.com/maputnik/editor/wiki). You are welcome to collaborate!
+The documentation can be found in the [Wiki](https://github.com/maplibre/maputnik/wiki). You are welcome to collaborate!
 
-- :link: **Study the [Maputnik Wiki](https://github.com/maputnik/editor/wiki)**
+- :link: **Study the [Maputnik Wiki](https://github.com/maplibre/maputnik/wiki)**
 - :video_camera: Design a map from Scratch https://youtu.be/XoDh0gEnBQo
 
 [![Design Map from Scratch](https://j.gifs.com/g5XMgl.gif)](https://youtu.be/XoDh0gEnBQo)
 
 ## Develop
 
-Maputnik is written in ES6 and is using [React](https://github.com/facebook/react) and [Mapbox GL JS](https://www.mapbox.com/mapbox-gl-js/api/).
+Maputnik is written in typescript and is using [React](https://github.com/facebook/react) and [MapLibre GL JS](https://maplibre.org/projects/maplibre-gl-js/).
 
 We ensure building and developing Maputnik works with the [current active LTS Node.js version and above](https://github.com/nodejs/Release#release-schedule).
 
+### Getting Involved
+Join the #maplibre or #maputnik slack channel at OSMUS: get an invite at https://slack.openstreetmap.us/ Read the the below guide in order to get familiar with how we do things around here.
+
 Install the deps, start the dev server and open the web browser on `http://localhost:8888/`.
 
 ```bash
 # install dependencies
 npm install
 # start dev server
-npm start
+npm run start
 ```
 
-If you want Maputnik to be accessible externally use the [`--host` option](https://webpack.js.org/configuration/dev-server/#devserverhost):
+If you want Maputnik to be accessible externally use the [`--host` option](https://vitejs.dev/config/server-options.html#server-host):
 
 ```bash
 # start externally accessible dev server
-npm start -- --host 0.0.0.0 
+npm run start -- --host 0.0.0.0
 ```
 
-The build process will watch for changes to the filesystem, rebuild and autoreload the editor. However note this from the [webpack-dev-server docs](https://webpack.js.org/configuration/dev-server/):
-
-> webpack uses the file system to get notified of file changes. In some cases this does not work. For example, when using Network File System (NFS). Vagrant also has a lot of problems with this. ([snippet source](https://webpack.js.org/configuration/dev-server/#devserverwatchoptions-))
-
-To enable polling add `export WEBPACK_DEV_SERVER_POLLING=1` to your environment.
+The build process will watch for changes to the filesystem, rebuild and autoreload the editor.
 
 ```
 npm run build
@@ -78,93 +71,40 @@ npm run lint-styles
 
 
 ## Tests
-For testing we use [webdriverio](http://webdriver.io) and [selenium-standalone](https://github.com/vvo/selenium-standalone)
+For E2E testing we use [Cypress](https://www.cypress.io/)
 
-[selenium-standalone](https://github.com/vvo/selenium-standalone) starts a server that will launch browsers on your local machine. We use chrome so you **must** have chrome installed on your machine.
+ [Cypress](https://www.cypress.io/) doesn't starts a server so you'll need to start one manually by running `npm run start`.
 
-Now open a terminal and run the following. This will install the drivers on your local machine
+Now open a terminal and run the following using *chrome*:
 
 ```
-./node_modules/.bin/selenium-standalone install
+npm run test
+```
+or *firefox*:
+```
+npm run test -- --browser firefox
 ```
 
-Now start the standalone server
+See the following docs for more info: (Launching Browsers)[https://docs.cypress.io/guides/guides/launching-browsers]
+
+You can also see the tests as they run or select which suites to run by executing:
 
 ```
-./node_modules/.bin/selenium-standalone start
+npm run cy:open
 ```
 
-Then open another terminal and run
-
-```
-npm test
-```
-
-After some time you should see a browser launch which will be automated by the test runner.
-
 
 ## Related Projects
 
-- [maputnik-dev-server](https://github.com/nycplanning/labs-maputnik-dev-server) - An express.js server that allows for quickly loading the style from any mapboxGL map into mapuntnik. 
+- [maputnik-dev-server](https://github.com/nycplanning/labs-maputnik-dev-server) - An express.js server that allows for quickly loading the style from any mapboxGL map into mapuntnik.
 
 ## Sponsors
 
 Thanks to the supporters of the **[Kickstarter campaign](https://www.kickstarter.com/projects/174808720/maputnik-visual-map-editor-for-mapbox-gl)**. This project would not be possible without these commercial and individual sponsors.
-
-### Gold
-
-- [Wemap](https://getwemap.com/)
-- [Orbicon Informatik](https://www.orbiconinformatik.dk/)
-- [Terranodo](http://terranodo.io/)
-
-<a href="https://getwemap.com/">
-  <img width="33%" alt="Wemap" style="display:inline" src="https://cdn.jsdelivr.net/gh/maputnik/editor@1.5.0/media/sponsors/wemap.jpg" />
-</a>
-<a href="http://terranodo.io/">
-  <img width="33%" alt="Terranodo" style="display:inline" src="https://cdn.jsdelivr.net/gh/maputnik/editor@1.5.0/media/sponsors/terranodo.png" />
-</a>
-<a href="https://www.orbiconinformatik.dk/">
-  <img width="32%" alt="Terranodo" style="display:inline" src="https://cdn.jsdelivr.net/gh/maputnik/editor@1.5.0/media/sponsors/orbicon_informatik.png" />
-</a>
-
-<br/>
-
-### Silver
-
-- [Klokan Technologies](https://www.klokantech.com/)
-- [Geofabrik](http://www.geofabrik.de/)
-- [Dreipol](https://www.dreipol.ch/)
-
-<a href="https://www.klokantech.com/">
-  <img width="18%" alt="Klokan Technologies" style="display:inline-block" src="https://cdn.jsdelivr.net/gh/maputnik/editor@1.5.0/media/sponsors/klokantech.png" />
-</a>
-<a href="http://www.geofabrik.de/">
-  <img width="18%" alt="Geofabrik" style="display:inline-block" src="https://cdn.jsdelivr.net/gh/maputnik/editor@1.5.0/media/sponsors/geofabrik.png" />
-</a>
-<a href="https://www.dreipol.ch/">
-  <img width="18%" alt="Dreipol" style="display:inline-block" src="https://cdn.jsdelivr.net/gh/maputnik/editor@1.5.0/media/sponsors/dreipol.png" />
-</a>
-
-<br/>
-
-### Individuals
-
-**Influential Stakeholder**
-
-Alan McConchie, Odi, Mats Norén, Uli [geOps](http://geops.ch/), Helge Fahrnberger ([Toursprung](http://www.toursprung.com/)), Kirusanth Poopalasingam
-
-**Stakeholder**
-
-Brian Flood, Vasile Coțovanu, Andreas Kalkbrenner, Christian Mäder, Gregor Wassmann, Lee Armstrong, Rafel, Jon Burgess, Lukas Lehmann, Joachim Ungar, Alois Ackermann, Zsolt Ero, Jordan Meek
-
-**Supporter**
-
-Sina Martinelli, Nicholas Doiron, Neil Cawse, Urs42, Benedikt Groß, Manuel Roth, Janko Mihelić, Moritz Stefaner, Sebastian Ahoi, Juerg Uhlmann, Tom Wider, Nadia Panchaud, Oliver Snowden, Stephan Heuel, Tobin Bradley, Adrian Herzog, Antti Lehto, Pascal Mages, Marc Gehling, Imre Samu, Lauri K., Visahavel Parthasarathy, Christophe Waterlot-Buisine, Max Galka, ubahnverleih, Wouter van Dam, Jakob Lobensteiner, Samuel Kurath, Brian Bancroft
+You can see this file's history for previous sponsors of the original Maputnik repo.
+Read more about the MapLibre Sponsorship Program at https://maplibre.org/sponsors/.
 
 ## License
 
-Maputnik is [licensed under MIT](LICENSE) and is Copyright (c) Lukas Martinelli and contributors.
-
-**Disclaimer** This project is not affiliated with Mapbox or Mapbox Studio. It is an independent style editor for the
-open source technology in the Mapbox GL ecosystem.
-As contributor please take extra care of not violating any Mapbox trademarks. Do not get inspired by Mapbox Studio and make your own decisions for a good style editor.
+Maputnik is [licensed under MIT](LICENSE) and is Copyright (c) Lukas Martinelli and Maplibre contributors.
+As contributor please take extra care of not violating any Mapbox trademarks. Do not get inspired by other map studios and make your own decisions for a good style editor.

SECURITY_POLICY.txt

@@ -0,0 +1,2 @@
+For an up-to-date policy refer to
+https://github.com/maplibre/maplibre/blob/main/SECURITY_POLICY.txt

appveyor.yml

@@ -1,26 +0,0 @@
-image: Visual Studio 2015
-environment:
-  matrix:
-    - nodejs_version: "8"
-    - nodejs_version: "10"
-    - nodejs_version: "12"
-platform:
-  - x86
-  - x64
-install:
-  # https://github.com/appveyor/ci/issues/2921#issuecomment-501016533
-  - ps: |
-      try {
-      Install-Product node $env:nodejs_version $env:platform
-      } catch {
-      echo "Unable to install node $env:nodejs_version, trying update..."
-      Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version) $env:platform
-      }
-  - md public
-  - npm --vs2015 install --global windows-build-tools
-  - npm install
-build_script:
-  - npm run build
-test_script:
-  - npm run lint
-  - npm run lint-styles

config/wdio.conf.js

@@ -1,288 +0,0 @@
-var webpack          = require("webpack");
-var WebpackDevServer = require("webpack-dev-server");
-var webpackConfig    = require("./webpack.config");
-var testConfig       = require("../test/config/specs");
-var artifacts        = require("../test/artifacts");
-var isDocker         = require("is-docker");
-
-
-var server;
-var SCREENSHOT_PATH = artifacts.pathSync("screenshots");
-
-exports.config = {
-    //
-    // ====================
-    // Runner Configuration
-    // ====================
-    //
-    // WebdriverIO allows it to run your tests in arbitrary locations (e.g. locally or
-    // on a remote machine).
-    runner: 'local',
-    //
-    // ==================
-    // Specify Test Files
-    // ==================
-    // Define which test specs should run. The pattern is relative to the directory
-    // from which `wdio` was called. Notice that, if you are calling `wdio` from an
-    // NPM script (see https://docs.npmjs.com/cli/run-script) then the current working
-    // directory is where your package.json resides, so `wdio` will be called from there.
-    //
-    specs: [
-        './test/functional/index.js'
-    ],
-    // Patterns to exclude.
-    exclude: [
-        // 'path/to/excluded/files'
-    ],
-    //
-    // ============
-    // Capabilities
-    // ============
-    // Define your capabilities here. WebdriverIO can run multiple capabilities at the same
-    // time. Depending on the number of capabilities, WebdriverIO launches several test
-    // sessions. Within your capabilities you can overwrite the spec and exclude options in
-    // order to group specific specs to a specific capability.
-    //
-    // First, you can define how many instances should be started at the same time. Let's
-    // say you have 3 different capabilities (Chrome, Firefox, and Safari) and you have
-    // set maxInstances to 1; wdio will spawn 3 processes. Therefore, if you have 10 spec
-    // files and you set maxInstances to 10, all spec files will get tested at the same time
-    // and 30 processes will get spawned. The property handles how many capabilities
-    // from the same test should run tests.
-    //
-    maxInstances: 10,
-    //
-    // If you have trouble getting all important capabilities together, check out the
-    // Sauce Labs platform configurator - a great tool to configure your capabilities:
-    // https://docs.saucelabs.com/reference/platforms-configurator
-    //
-    capabilities: [{
-        // maxInstances can get overwritten per capability. So if you have an in-house Selenium
-        // grid with only 5 firefox instances available you can make sure that not more than
-        // 5 instances get started at a time.
-        maxInstances: 5,
-        //
-        browserName: 'chrome',
-        // If outputDir is provided WebdriverIO can capture driver session logs
-        // it is possible to configure which logTypes to include/exclude.
-        // excludeDriverLogs: ['*'], // pass '*' to exclude all driver session logs
-        // excludeDriverLogs: ['bugreport', 'server'],
-    }],
-    //
-    // ===================
-    // Test Configurations
-    // ===================
-    // Define all options that are relevant for the WebdriverIO instance here
-    //
-    // Level of logging verbosity: trace | debug | info | warn | error | silent
-    logLevel: 'info',
-    //
-    // Set specific log levels per logger
-    // loggers:
-    // - webdriver, webdriverio
-    // - @wdio/applitools-service, @wdio/browserstack-service, @wdio/devtools-service, @wdio/sauce-service
-    // - @wdio/mocha-framework, @wdio/jasmine-framework
-    // - @wdio/local-runner, @wdio/lambda-runner
-    // - @wdio/sumologic-reporter
-    // - @wdio/cli, @wdio/config, @wdio/sync, @wdio/utils
-    // Level of logging verbosity: trace | debug | info | warn | error | silent
-    // logLevels: {
-        // webdriver: 'debug',
-        // '@wdio/applitools-service': 'info'
-    // },
-    //
-    // If you only want to run your tests until a specific amount of tests have failed use
-    // bail (default is 0 - don't bail, run all tests).
-    bail: 0,
-    //
-    screenshotPath: SCREENSHOT_PATH,
-    // Note: This is here because @orangemug currently runs Maputnik inside a docker container.
-    host: process.env.DOCKER_HOST || "0.0.0.0",
-    // Set a base URL in order to shorten url command calls. If your `url` parameter starts
-    // with `/`, the base url gets prepended, not including the path portion of your baseUrl.
-    // If your `url` parameter starts without a scheme or `/` (like `some/path`), the base url
-    // gets prepended directly.
-    baseUrl: 'http://localhost',
-    //
-    // Default timeout for all waitFor* commands.
-    waitforTimeout: 10000,
-    //
-    // Default timeout in milliseconds for request
-    // if Selenium Grid doesn't send response
-    connectionRetryTimeout: 90000,
-    //
-    // Default request retries count
-    connectionRetryCount: 3,
-    //
-    // Test runner services
-    // Services take over a specific job you don't want to take care of. They enhance
-    // your test setup with almost no effort. Unlike plugins, they don't add new
-    // commands. Instead, they hook themselves up into the test process.
-    services: ['selenium-standalone'],
-    //
-    // Framework you want to run your specs with.
-    // The following are supported: Mocha, Jasmine, and Cucumber
-    // see also: https://webdriver.io/docs/frameworks.html
-    //
-    // Make sure you have the wdio adapter package for the specific framework installed
-    // before running any tests.
-    framework: 'mocha',
-    //
-    // The number of times to retry the entire specfile when it fails as a whole
-    // specFileRetries: 1,
-    //
-    // Test reporter for stdout.
-    // The only one supported by default is 'dot'
-    // see also: https://webdriver.io/docs/dot-reporter.html
-    reporters: ['spec'],
-    
-    //
-    // Options to be passed to Mocha.
-    // See the full list at http://mochajs.org/
-    mochaOpts: {
-        ui: 'bdd',
-        // Because we don't know how long the initial build will take...
-        timeout: 4*60*1000
-    },
-    onPrepare: function (config, capabilities) {
-      return new Promise(function(resolve, reject) {
-        var compiler = webpack(webpackConfig);
-        server = new WebpackDevServer(compiler, {
-          stats: {
-            colors: true
-          }
-        });
-        server.listen(testConfig.port, (isDocker() ? "0.0.0.0" : "localhost"), function(err) {
-          if(err) {
-            reject(err);
-          }
-          else {
-            resolve();
-          }
-        });
-      })
-    },
-    onComplete: function(exitCode) {
-      server.close()
-    }
-    //
-    // =====
-    // Hooks
-    // =====
-    // WebdriverIO provides several hooks you can use to interfere with the test process in order to enhance
-    // it and to build services around it. You can either apply a single function or an array of
-    // methods to it. If one of them returns with a promise, WebdriverIO will wait until that promise got
-    // resolved to continue.
-    /**
-     * Gets executed once before all workers get launched.
-     * @param {Object} config wdio configuration object
-     * @param {Array.<Object>} capabilities list of capabilities details
-     */
-    // onPrepare: function (config, capabilities) {
-    // },
-    /**
-     * Gets executed just before initialising the webdriver session and test framework. It allows you
-     * to manipulate configurations depending on the capability or spec.
-     * @param {Object} config wdio configuration object
-     * @param {Array.<Object>} capabilities list of capabilities details
-     * @param {Array.<String>} specs List of spec file paths that are to be run
-     */
-    // beforeSession: function (config, capabilities, specs) {
-    // },
-    /**
-     * Gets executed before test execution begins. At this point you can access to all global
-     * variables like `browser`. It is the perfect place to define custom commands.
-     * @param {Array.<Object>} capabilities list of capabilities details
-     * @param {Array.<String>} specs List of spec file paths that are to be run
-     */
-    // before: function (capabilities, specs) {
-    // },
-    /**
-     * Runs before a WebdriverIO command gets executed.
-     * @param {String} commandName hook command name
-     * @param {Array} args arguments that command would receive
-     */
-    // beforeCommand: function (commandName, args) {
-    // },
-    
-    /**
-     * Hook that gets executed before the suite starts
-     * @param {Object} suite suite details
-     */
-    // beforeSuite: function (suite) {
-    // },
-    /**
-     * Function to be executed before a test (in Mocha/Jasmine) or a step (in Cucumber) starts.
-     * @param {Object} test test details
-     */
-    // beforeTest: function (test) {
-    // },
-    /**
-     * Hook that gets executed _before_ a hook within the suite starts (e.g. runs before calling
-     * beforeEach in Mocha)
-     */
-    // beforeHook: function () {
-    // },
-    /**
-     * Hook that gets executed _after_ a hook within the suite starts (e.g. runs after calling
-     * afterEach in Mocha)
-     */
-    // afterHook: function () {
-    // },
-    /**
-     * Function to be executed after a test (in Mocha/Jasmine) or a step (in Cucumber) starts.
-     * @param {Object} test test details
-     */
-    // afterTest: function (test) {
-    // },
-    /**
-     * Hook that gets executed after the suite has ended
-     * @param {Object} suite suite details
-     */
-    // afterSuite: function (suite) {
-    // },
-    
-    /**
-     * Runs after a WebdriverIO command gets executed
-     * @param {String} commandName hook command name
-     * @param {Array} args arguments that command would receive
-     * @param {Number} result 0 - command success, 1 - command error
-     * @param {Object} error error object if any
-     */
-    // afterCommand: function (commandName, args, result, error) {
-    // },
-    /**
-     * Gets executed after all tests are done. You still have access to all global variables from
-     * the test.
-     * @param {Number} result 0 - test pass, 1 - test fail
-     * @param {Array.<Object>} capabilities list of capabilities details
-     * @param {Array.<String>} specs List of spec file paths that ran
-     */
-    // after: function (result, capabilities, specs) {
-    // },
-    /**
-     * Gets executed right after terminating the webdriver session.
-     * @param {Object} config wdio configuration object
-     * @param {Array.<Object>} capabilities list of capabilities details
-     * @param {Array.<String>} specs List of spec file paths that ran
-     */
-    // afterSession: function (config, capabilities, specs) {
-    // },
-    /**
-     * Gets executed after all workers got shut down and the process is about to exit. An error
-     * thrown in the onComplete hook will result in the test run failing.
-     * @param {Object} exitCode 0 - success, 1 - fail
-     * @param {Object} config wdio configuration object
-     * @param {Array.<Object>} capabilities list of capabilities details
-     * @param {<Object>} results object containing test results
-     */
-    // onComplete: function(exitCode, config, capabilities, results) {
-    // },
-    /**
-    * Gets executed when a refresh happens.
-    * @param {String} oldSessionId session ID of the old session
-    * @param {String} newSessionId session ID of the new session
-    */
-    //onReload: function(oldSessionId, newSessionId) {
-    //}
-}

config/webpack.config.js

@@ -1,71 +0,0 @@
-"use strict";
-var webpack = require('webpack');
-var path = require('path');
-var rules = require('./webpack.rules');
-var HtmlWebpackPlugin = require('html-webpack-plugin');
-var CopyWebpackPlugin = require('copy-webpack-plugin');
-
-const HOST = process.env.HOST || "127.0.0.1";
-const PORT = process.env.PORT || "8888";
-
-module.exports = {
-  target: 'web',
-  mode: 'development',
-  entry: [
-    `webpack-dev-server/client?http://${HOST}:${PORT}`,
-    `webpack/hot/only-dev-server`,
-    `./src/index.jsx` // Your appʼs entry point
-  ],
-  devtool: process.env.WEBPACK_DEVTOOL || 'cheap-module-source-map',
-  output: {
-    path: path.join(__dirname, '..', 'public'),
-    filename: 'bundle.js'
-  },
-  resolve: {
-    extensions: ['.js', '.jsx']
-  },
-  module: {
-    noParse: [
-      /mapbox-gl\/dist\/mapbox-gl.js/
-    ],
-    rules: rules
-  },
-  node: {
-    fs: "empty",
-    net: 'empty',
-    tls: 'empty'
-  },
-  devServer: {
-    contentBase: "./public",
-    // do not print bundle build stats
-    noInfo: true,
-    // enable HMR
-    hot: true,
-    // embed the webpack-dev-server runtime into the bundle
-    inline: true,
-    // serve index.html in place of 404 responses to allow HTML5 history
-    historyApiFallback: true,
-    port: PORT,
-    host: HOST,
-    watchOptions: {
-      // Disabled polling by default as it causes lots of CPU usage and hence drains laptop batteries. To enable polling add WEBPACK_DEV_SERVER_POLLING to your environment
-      // See <https://webpack.js.org/configuration/watch/#watchoptions-poll> for details
-      poll: (!!process.env.WEBPACK_DEV_SERVER_POLLING ? true : false),
-      watch: false
-    }
-  },
-  plugins: [
-    new webpack.NoEmitOnErrorsPlugin(),
-    new webpack.HotModuleReplacementPlugin(),
-    new HtmlWebpackPlugin({
-      title: 'Maputnik',
-      template: './src/template.html'
-    }),
-    new CopyWebpackPlugin([
-      {
-        from: './src/manifest.json',
-        to: 'manifest.json'
-      }
-    ])
-  ]
-};

config/webpack.production.config.js

@@ -1,62 +0,0 @@
-var webpack = require('webpack');
-var path = require('path');
-var rules = require('./webpack.rules');
-var HtmlWebpackPlugin = require('html-webpack-plugin');
-var WebpackCleanupPlugin = require('webpack-cleanup-plugin');
-var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
-var CopyWebpackPlugin = require('copy-webpack-plugin');
-var artifacts = require("../test/artifacts");
-
-var OUTPATH = artifacts.pathSync("/build");
-
-module.exports = {
-  entry: {
-    app: './src/index.jsx',
-  },
-  output: {
-    path: OUTPATH,
-    filename: '[name].[contenthash].js',
-    chunkFilename: '[contenthash].js'
-  },
-  resolve: {
-    extensions: ['.js', '.jsx']
-  },
-  module: {
-    noParse: [
-      /mapbox-gl\/dist\/mapbox-gl.js/
-    ],
-    rules: rules
-  },
-  node: {
-    fs: "empty",
-    net: 'empty',
-    tls: 'empty'
-  },
-  plugins: [
-    new webpack.NoEmitOnErrorsPlugin(),
-    new WebpackCleanupPlugin(),
-    new webpack.DefinePlugin({
-      'process.env': {
-        NODE_ENV: '"production"'
-      }
-    }),
-    new HtmlWebpackPlugin({
-      template: './src/template.html',
-      title: 'Maputnik'
-    }),
-    new CopyWebpackPlugin([
-      {
-        from: './src/manifest.json',
-        to: 'manifest.json'
-    }
-  ]),
-    new BundleAnalyzerPlugin({
-      analyzerMode: 'static',
-      defaultSizes: 'gzip',
-      openAnalyzer: false,
-      generateStatsFile: true,
-      reportFilename: 'bundle-stats.html',
-      statsFilename: 'bundle-stats.json',
-    })
-  ]
-};

config/webpack.rules.js

@@ -1,38 +0,0 @@
-const path = require("path");
-
-module.exports = [
-  {
-    test: /\.jsx?$/,
-    exclude: [
-      path.resolve(__dirname, '../node_modules')
-    ],
-    use: 'babel-loader'
-  },
-  {
-    test: /\.(eot|ttf|woff|woff2)$/,
-    use: 'file-loader?name=fonts/[name].[ext]'
-  },
-  {
-    test: /\.ico$/,
-    use: 'file-loader?name=[name].[ext]'
-  },
-  {
-    test: /\.(svg|gif|jpg|png)$/,
-    use: 'file-loader?name=img/[name].[ext]'
-  },
-  {
-    test: /[\/\\](node_modules|global|src)[\/\\].*\.scss$/,
-    use: [
-      'style-loader',
-      "css-loader",
-      "sass-loader"
-    ]
-  },
-  {
-    test: /[\/\\](node_modules|global|src)[\/\\].*\.css$/,
-    use: [
-      'style-loader',
-      'css-loader'
-    ]
-  }
-];

cypress.config.ts

@@ -0,0 +1,23 @@
+import { defineConfig } from "cypress";
+import { createRequire } from "module";
+const require = createRequire(import.meta.url);
+
+export default defineConfig({
+  env: {
+    codeCoverage: {
+      exclude: "cypress/**/*.*",
+    },
+  },
+  e2e: {
+    setupNodeEvents(on, config) {
+      // implement node event listeners here
+      require("@cypress/code-coverage/task")(on, config);
+      return config;
+    },
+    baseUrl: "http://localhost:8888",
+    retries: {
+      runMode: 2,
+      openMode: 0,
+    },
+  },
+});

cypress/e2e/accessibility.cy.ts

@@ -0,0 +1,40 @@
+import { MaputnikDriver } from "./maputnik-driver";
+
+describe("accessibility", () => {
+  let { beforeAndAfter, get, when, then } = new MaputnikDriver();
+  beforeAndAfter();
+
+  describe("skip links", () => {
+    beforeEach(() => {
+      when.setStyle("layer");
+    });
+
+    it("skip link to layer list", () => {
+      const selector = "root:skip:layer-list";
+      then(get.elementByTestId(selector)).shouldExist();
+      when.tab();
+      then(get.elementByTestId(selector)).shouldBeFocused();
+      when.click(selector);
+      then(get.skipTargetLayerList()).shouldBeFocused();
+    });
+
+    // This fails for some reason only in Chrome, but passes in firefox. Adding a skip here to allow merge and later on we'll decide if we want to fix this or not.
+    it.skip("skip link to layer editor", () => {
+      const selector = "root:skip:layer-editor";
+      then(get.elementByTestId(selector)).shouldExist();
+      when.tab().tab();
+      then(get.elementByTestId(selector)).shouldBeFocused();
+      when.click(selector);
+      then(get.skipTargetLayerEditor()).shouldBeFocused();
+    });
+
+    it("skip link to map view", () => {
+      const selector = "root:skip:map-view";
+      then(get.elementByTestId(selector)).shouldExist();
+      when.tab().tab().tab();
+      then(get.elementByTestId(selector)).shouldBeFocused();
+      when.click(selector);
+      then(get.canvas()).shouldBeFocused();
+    });
+  });
+});

cypress/e2e/history.cy.ts

@@ -0,0 +1,125 @@
+import { MaputnikDriver } from "./maputnik-driver";
+
+describe("history", () => {
+  let { beforeAndAfter, when, get, then } = new MaputnikDriver();
+  beforeAndAfter();
+
+  let undoKeyCombo: string;
+  let redoKeyCombo: string;
+
+  before(() => {
+    const isMac = get.isMac();
+    undoKeyCombo = isMac ? "{meta}z" : "{ctrl}z";
+    redoKeyCombo = isMac ? "{meta}{shift}z" : "{ctrl}y";
+  });
+
+  it("undo/redo", () => {
+    when.setStyle("geojson");
+    when.modal.open();
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({ layers: [] });
+
+    when.modal.fillLayers({
+      id: "step 1",
+      type: "background",
+    });
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+      layers: [
+        {
+          id: "step 1",
+          type: "background",
+        },
+      ],
+    });
+
+    when.modal.open();
+    when.modal.fillLayers({
+      id: "step 2",
+      type: "background",
+    });
+
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+      layers: [
+        {
+          id: "step 1",
+          type: "background",
+        },
+        {
+          id: "step 2",
+          type: "background",
+        },
+      ],
+    });
+
+    when.typeKeys(undoKeyCombo);
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+      layers: [
+        {
+          id: "step 1",
+          type: "background",
+        },
+      ],
+    });
+
+    when.typeKeys(undoKeyCombo);
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({ layers: [] });
+
+    when.typeKeys(redoKeyCombo);
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+      layers: [
+        {
+          id: "step 1",
+          type: "background",
+        },
+      ],
+    });
+
+    when.typeKeys(redoKeyCombo);
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+      layers: [
+        {
+          id: "step 1",
+          type: "background",
+        },
+        {
+          id: "step 2",
+          type: "background",
+        },
+      ],
+    });
+  });
+
+  it("should not redo after undo and value change", () => {
+    when.setStyle("geojson");
+    when.modal.open();
+    when.modal.fillLayers({
+      id: "step 1",
+      type: "background",
+    });
+
+    when.modal.open();
+    when.modal.fillLayers({
+      id: "step 2",
+      type: "background",
+    });
+
+    when.typeKeys(undoKeyCombo);
+    when.typeKeys(undoKeyCombo);
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({ layers: [] });
+
+    when.modal.open();
+    when.modal.fillLayers({
+      id: "step 3",
+      type: "background",
+    });
+
+    when.typeKeys(redoKeyCombo);
+    then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+      layers: [
+        {
+          id: "step 3",
+          type: "background",
+        },
+      ],
+    });
+  });
+});

cypress/e2e/keyboard.cy.ts

@@ -0,0 +1,60 @@
+import { MaputnikDriver } from "./maputnik-driver";
+
+describe("keyboard", () => {
+  let { beforeAndAfter, given, when, get, then } = new MaputnikDriver();
+  beforeAndAfter();
+  describe("shortcuts", () => {
+    beforeEach(() => {
+      given.setupMockBackedResponses();
+      when.setStyle("");
+    });
+
+    it("ESC should unfocus", () => {
+      const targetSelector = "maputnik-select";
+      when.focus(targetSelector);
+      then(get.elementByTestId(targetSelector)).shouldBeFocused();
+      when.typeKeys("{esc}");
+      then(get.elementByTestId(targetSelector)).shouldNotBeFocused();
+    });
+
+    it("'?' should show shortcuts modal", () => {
+      when.typeKeys("?");
+      then(get.elementByTestId("modal:shortcuts")).shouldBeVisible();
+    });
+
+    it("'o' should show open modal", () => {
+      when.typeKeys("o");
+      then(get.elementByTestId("modal:open")).shouldBeVisible();
+    });
+
+    it("'e' should show export modal", () => {
+      when.typeKeys("e");
+      then(get.elementByTestId("modal:export")).shouldBeVisible();
+    });
+
+    it("'d' should show sources modal", () => {
+      when.typeKeys("d");
+      then(get.elementByTestId("modal:sources")).shouldBeVisible();
+    });
+
+    it("'s' should show settings modal", () => {
+      when.typeKeys("s");
+      then(get.elementByTestId("modal:settings")).shouldBeVisible();
+    });
+
+    it("'i' should change map to inspect mode", () => {
+      when.typeKeys("i");
+      then(get.inputValue("maputnik-select")).shouldEqual("inspect");
+    });
+
+    it("'m' should focus map", () => {
+      when.typeKeys("m");
+      then(get.canvas()).shouldBeFocused();
+    });
+
+    it("'!' should show debug modal", () => {
+      when.typeKeys("!");
+      then(get.elementByTestId("modal:debug")).shouldBeVisible();
+    });
+  });
+});

cypress/e2e/layers.cy.ts

@@ -0,0 +1,478 @@
+import { v1 as uuid } from "uuid";
+import { MaputnikDriver } from "./maputnik-driver";
+
+describe("layers", () => {
+  let { beforeAndAfter, get, when, then } = new MaputnikDriver();
+  beforeAndAfter();
+  beforeEach(() => {
+    when.setStyle("both");
+    when.modal.open();
+  });
+
+  describe("ops", () => {
+    let id: string;
+    beforeEach(() => {
+      id = when.modal.fillLayers({
+        type: "background",
+      });
+    });
+
+    it("should update layers in local storage", () => {
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "background",
+          },
+        ],
+      });
+    });
+
+    describe("when clicking delete", () => {
+      beforeEach(() => {
+        when.click("layer-list-item:" + id + ":delete");
+      });
+      it("should empty layers in local storage", () => {
+        then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+          layers: [],
+        });
+      });
+    });
+
+    describe("when clicking duplicate", () => {
+      beforeEach(() => {
+        when.click("layer-list-item:" + id + ":copy");
+      });
+      it("should add copy layer in local storage", () => {
+        then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+          layers: [
+            {
+              id: id + "-copy",
+              type: "background",
+            },
+            {
+              id: id,
+              type: "background",
+            },
+          ],
+        });
+      });
+    });
+
+    describe("when clicking hide", () => {
+      beforeEach(() => {
+        when.click("layer-list-item:" + id + ":toggle-visibility");
+      });
+
+      it("should update visibility to none in local storage", () => {
+        then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+          layers: [
+            {
+              id: id,
+              type: "background",
+              layout: {
+                visibility: "none",
+              },
+            },
+          ],
+        });
+      });
+
+      describe("when clicking show", () => {
+        beforeEach(() => {
+          when.click("layer-list-item:" + id + ":toggle-visibility");
+        });
+
+        it("should update visibility to visible in local storage", () => {
+          then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+            layers: [
+              {
+                id: id,
+                type: "background",
+                layout: {
+                  visibility: "visible",
+                },
+              },
+            ],
+          });
+        });
+      });
+    });
+  });
+  describe("background", () => {
+    it("add", () => {
+      let id = when.modal.fillLayers({
+        type: "background",
+      });
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "background",
+          },
+        ],
+      });
+    });
+
+    describe("modify", () => {
+      function createBackground() {
+        // Setup
+        let id = uuid();
+
+        when.selectWithin("add-layer.layer-type", "background");
+        when.setValue("add-layer.layer-id.input", "background:" + id);
+
+        when.click("add-layer");
+
+        then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+          layers: [
+            {
+              id: "background:" + id,
+              type: "background",
+            },
+          ],
+        });
+        return id;
+      }
+
+      // ====> THESE SHOULD BE FROM THE SPEC
+      describe("layer", () => {
+        it("expand/collapse");
+        it("id", () => {
+          let bgId = createBackground();
+
+          when.click("layer-list-item:background:" + bgId);
+
+          let id = uuid();
+          when.setValue("layer-editor.layer-id.input", "foobar:" + id);
+          when.click("min-zoom");
+
+          then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+            layers: [
+              {
+                id: "foobar:" + id,
+                type: "background",
+              },
+            ],
+          });
+        });
+
+        describe("min-zoom", () => {
+          let bgId: string;
+
+          beforeEach(() => {
+            bgId = createBackground();
+            when.click("layer-list-item:background:" + bgId);
+            when.setValue("min-zoom.input-text", "1");
+            when.click("layer-editor.layer-id");
+          });
+
+          it("should update min-zoom in local storage", () => {
+            then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+              layers: [
+                {
+                  id: "background:" + bgId,
+                  type: "background",
+                  minzoom: 1,
+                },
+              ],
+            });
+          });
+
+          it("when clicking next layer should update style on local storage", () => {
+            when.type("min-zoom.input-text", "{backspace}");
+            when.click("max-zoom.input-text");
+            then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+              layers: [
+                {
+                  id: "background:" + bgId,
+                  type: "background",
+                  minzoom: 1,
+                },
+              ],
+            });
+          });
+        });
+
+        describe("max-zoom", () => {
+          let bgId: string;
+
+          beforeEach(() => {
+            bgId = createBackground();
+            when.click("layer-list-item:background:" + bgId);
+            when.setValue("max-zoom.input-text", "1");
+            when.click("layer-editor.layer-id");
+          });
+
+          it("should update style in local storage", () => {
+            then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+              layers: [
+                {
+                  id: "background:" + bgId,
+                  type: "background",
+                  maxzoom: 1,
+                },
+              ],
+            });
+          });
+        });
+
+        describe("comments", () => {
+          let bgId: string;
+          let comment = "42";
+
+          beforeEach(() => {
+            bgId = createBackground();
+            when.click("layer-list-item:background:" + bgId);
+            when.setValue("layer-comment.input", comment);
+            when.click("layer-editor.layer-id");
+          });
+
+          it("should update style in local storage", () => {
+            then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+              layers: [
+                {
+                  id: "background:" + bgId,
+                  type: "background",
+                  metadata: {
+                    "maputnik:comment": comment,
+                  },
+                },
+              ],
+            });
+          });
+
+          describe("when unsetting", () => {
+            beforeEach(() => {
+              when.clear("layer-comment.input");
+              when.click("min-zoom.input-text");
+            });
+
+            it("should update style in local storage", () => {
+              then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+                layers: [
+                  {
+                    id: "background:" + bgId,
+                    type: "background",
+                  },
+                ],
+              });
+            });
+          });
+        });
+
+        describe("color", () => {
+          let bgId: string;
+          beforeEach(() => {
+            bgId = createBackground();
+            when.click("layer-list-item:background:" + bgId);
+            when.click("spec-field:background-color");
+          });
+
+          it("should update style in local storage", () => {
+            then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+              layers: [
+                {
+                  id: "background:" + bgId,
+                  type: "background",
+                },
+              ],
+            });
+          });
+        });
+      });
+
+      describe("filter", () => {
+        it("expand/collapse");
+        it("compound filter");
+      });
+
+      describe("paint", () => {
+        it("expand/collapse");
+        it("color");
+        it("pattern");
+        it("opacity");
+      });
+      // <=====
+
+      describe("json-editor", () => {
+        it("expand/collapse");
+        it("modify");
+
+        // TODO
+        it.skip("parse error", () => {
+          let bgId = createBackground();
+
+          when.click("layer-list-item:background:" + bgId);
+
+          let errorSelector = ".CodeMirror-lint-marker-error";
+          then(get.elementByTestId(errorSelector)).shouldNotExist();
+
+          when.click(".CodeMirror");
+          when.typeKeys(
+            "\uE013\uE013\uE013\uE013\uE013\uE013\uE013\uE013\uE013\uE013\uE013\uE013 {"
+          );
+          then(get.elementByTestId(errorSelector)).shouldExist();
+        });
+      });
+    });
+  });
+
+  describe("fill", () => {
+    it("add", () => {
+      let id = when.modal.fillLayers({
+        type: "fill",
+        layer: "example",
+      });
+
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "fill",
+            source: "example",
+          },
+        ],
+      });
+    });
+
+    // TODO: Change source
+    it("change source");
+  });
+
+  describe("line", () => {
+    it("add", () => {
+      let id = when.modal.fillLayers({
+        type: "line",
+        layer: "example",
+      });
+
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "line",
+            source: "example",
+          },
+        ],
+      });
+    });
+
+    it("groups", () => {
+      // TODO
+      // Click each of the layer groups.
+    });
+  });
+
+  describe("symbol", () => {
+    it("add", () => {
+      let id = when.modal.fillLayers({
+        type: "symbol",
+        layer: "example",
+      });
+
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "symbol",
+            source: "example",
+          },
+        ],
+      });
+    });
+  });
+
+  describe("raster", () => {
+    it("add", () => {
+      let id = when.modal.fillLayers({
+        type: "raster",
+        layer: "raster",
+      });
+
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "raster",
+            source: "raster",
+          },
+        ],
+      });
+    });
+  });
+
+  describe("circle", () => {
+    it("add", () => {
+      let id = when.modal.fillLayers({
+        type: "circle",
+        layer: "example",
+      });
+
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "circle",
+            source: "example",
+          },
+        ],
+      });
+    });
+  });
+
+  describe("fill extrusion", () => {
+    it("add", () => {
+      let id = when.modal.fillLayers({
+        type: "fill-extrusion",
+        layer: "example",
+      });
+
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        layers: [
+          {
+            id: id,
+            type: "fill-extrusion",
+            source: "example",
+          },
+        ],
+      });
+    });
+  });
+
+  describe("groups", () => {
+    it("simple", () => {
+      when.setStyle("geojson");
+
+      when.modal.open();
+      when.modal.fillLayers({
+        id: "foo",
+        type: "background",
+      });
+
+      when.modal.open();
+      when.modal.fillLayers({
+        id: "foo_bar",
+        type: "background",
+      });
+
+      when.modal.open();
+      when.modal.fillLayers({
+        id: "foo_bar_baz",
+        type: "background",
+      });
+
+      then(get.elementByTestId("layer-list-item:foo")).shouldBeVisible();
+      then(get.elementByTestId("layer-list-item:foo_bar")).shouldNotBeVisible();
+      then(
+        get.elementByTestId("layer-list-item:foo_bar_baz")
+      ).shouldNotBeVisible();
+      when.click("layer-list-group:foo-0");
+      then(get.elementByTestId("layer-list-item:foo")).shouldBeVisible();
+      then(get.elementByTestId("layer-list-item:foo_bar")).shouldBeVisible();
+      then(
+        get.elementByTestId("layer-list-item:foo_bar_baz")
+      ).shouldBeVisible();
+    });
+  });
+});

cypress/e2e/map.cy.ts

@@ -0,0 +1,32 @@
+import { MaputnikDriver } from "./maputnik-driver";
+
+describe("map", () => {
+  let { beforeAndAfter, get, when, then } = new MaputnikDriver();
+  beforeAndAfter();
+  describe("zoom level", () => {
+    it("via url", () => {
+      let zoomLevel = 12.37;
+      when.setStyle("geojson", zoomLevel);
+      then(get.elementByTestId("maplibre:ctrl-zoom")).shouldBeVisible();
+      then(get.elementByTestId("maplibre:ctrl-zoom")).shouldContainText(
+        "Zoom: " + zoomLevel
+      );
+    });
+
+    it("via map controls", () => {
+      let zoomLevel = 12.37;
+      when.setStyle("geojson", zoomLevel);
+      then(get.elementByTestId("maplibre:ctrl-zoom")).shouldBeVisible();
+      when.clickZoomIn();
+      then(get.elementByTestId("maplibre:ctrl-zoom")).shouldContainText(
+        "Zoom: " + (zoomLevel + 1)
+      );
+    });
+  });
+  
+  describe("search", () => {
+    it('should exist', () => {
+      then(get.searchControl()).shouldBeVisible();
+    });
+  });
+});

cypress/e2e/maputnik-cypress-helper.ts

@@ -0,0 +1,19 @@
+import { CypressHelper } from "@shellygo/cypress-test-utils";
+
+export default class MaputnikCypressHelper {
+  private helper = new CypressHelper({ defaultDataAttribute: "data-wd-key" });
+
+  public given = {
+    ...this.helper.given,
+  };
+
+  public get = {
+    ...this.helper.get,
+  };
+
+  public when = {
+    ...this.helper.when,
+  };
+
+  public beforeAndAfter = this.helper.beforeAndAfter;
+}

cypress/e2e/maputnik-driver.ts

@@ -0,0 +1,182 @@
+import { CypressHelper } from "@shellygo/cypress-test-utils";
+import { Assertable, then } from "@shellygo/cypress-test-utils/assertable";
+import MaputnikCypressHelper from "./maputnik-cypress-helper";
+import ModalDriver from "./modal-driver";
+const baseUrl = "http://localhost:8888/";
+
+const styleFromWindow = (win: Window) => {
+  const styleId = win.localStorage.getItem("maputnik:latest_style");
+  const styleItem = win.localStorage.getItem(`maputnik:style:${styleId}`);
+  const obj = JSON.parse(styleItem || "");
+  return obj;
+};
+
+export class MaputnikAssertable<T> extends Assertable<T> {
+  shouldEqualToStoredStyle = () =>
+    then(
+      new CypressHelper().get.window().then((win) => {
+        const style = styleFromWindow(win);
+        then(this.chainable).shouldDeepNestedInclude(style);
+      })
+    );
+}
+
+export class MaputnikDriver {
+  private helper = new MaputnikCypressHelper();
+  private modalDriver = new ModalDriver();
+
+  public beforeAndAfter = () => {
+    beforeEach(() => {
+      this.given.setupMockBackedResponses();
+      this.when.setStyle("both");
+    });
+  };
+
+  public then = (chainable: Cypress.Chainable<any>) =>
+    new MaputnikAssertable(chainable);
+
+  public given = {
+    ...this.helper.given,
+    setupMockBackedResponses: () => {
+      this.helper.given.interceptAndMockResponse({
+        method: "GET",
+        url: baseUrl + "example-style.json",
+        response: {
+          fixture: "example-style.json",
+        },
+        alias: "example-style.json",
+      });
+      this.helper.given.interceptAndMockResponse({
+        method: "GET",
+        url: baseUrl + "example-layer-style.json",
+        response: {
+          fixture: "example-layer-style.json",
+        },
+      });
+      this.helper.given.interceptAndMockResponse({
+        method: "GET",
+        url: baseUrl + "geojson-style.json",
+        response: {
+          fixture: "geojson-style.json",
+        },
+      });
+      this.helper.given.interceptAndMockResponse({
+        method: "GET",
+        url: baseUrl + "raster-style.json",
+        response: {
+          fixture: "raster-style.json",
+        },
+      });
+      this.helper.given.interceptAndMockResponse({
+        method: "GET",
+        url: baseUrl + "geojson-raster-style.json",
+        response: {
+          fixture: "geojson-raster-style.json",
+        },
+      });
+      this.helper.given.interceptAndMockResponse({
+        method: "GET",
+        url: "*example.local/*",
+        response: [],
+      });
+      this.helper.given.interceptAndMockResponse({
+        method: "GET",
+        url: "*example.com/*",
+        response: [],
+      });
+    },
+  };
+
+  public when = {
+    ...this.helper.when,
+    modal: this.modalDriver.when,
+    within: (selector: string, fn: () => void) => {
+      this.helper.when.within(fn, selector);
+    },
+    tab: () => this.helper.get.element("body").tab(),
+    waitForExampleFileResponse: () => {
+      this.helper.when.waitForResponse("example-style.json");
+    },
+    chooseExampleFile: () => {
+      this.helper.get
+        .bySelector("type", "file")
+        .selectFile("cypress/fixtures/example-style.json", { force: true });
+    },
+    setStyle: (
+      styleProperties: "geojson" | "raster" | "both" | "layer" | "",
+      zoom?: number
+    ) => {
+      let url = "?debug";
+      switch (styleProperties) {
+      case "geojson":
+        url += `&style=${baseUrl}geojson-style.json`;
+        break;
+      case "raster":
+        url += `&style=${baseUrl}raster-style.json`;
+        break;
+      case "both":
+        url += `&style=${baseUrl}geojson-raster-style.json`;
+        break;
+      case "layer":
+        url += `&style=${baseUrl}/example-layer-style.json`;
+        break;
+      }
+      if (zoom) {
+        url += `#${zoom}/41.3805/2.1635`;
+      }
+      this.helper.when.visit(baseUrl + url);
+      if (styleProperties) {
+        this.helper.when.acceptConfirm();
+      }
+      // when methods should not include assertions
+      this.helper.get.elementByTestId("toolbar:link").should("be.visible");
+    },
+
+    typeKeys: (keys: string) => this.helper.get.element("body").type(keys),
+
+    clickZoomIn: () => {
+      this.helper.get.element(".maplibregl-ctrl-zoom-in").click();
+    },
+
+    selectWithin: (selector: string, value: string) => {
+      this.when.within(selector, () => {
+        this.helper.get.element("select").select(value);
+      });
+    },
+
+    select: (selector: string, value: string) => {
+      this.helper.get.elementByTestId(selector).select(value);
+    },
+
+    focus: (selector: string) => {
+      this.helper.when.focus(selector);
+    },
+
+    setValue: (selector: string, text: string) => {
+      this.helper.get
+        .elementByTestId(selector)
+        .clear()
+        .type(text, { parseSpecialCharSequences: false });
+    },
+  };
+
+  public get = {
+    ...this.helper.get,
+    isMac: () => {
+      return Cypress.platform === "darwin";
+    },
+
+    styleFromLocalStorage: () =>
+      this.helper.get.window().then((win) => styleFromWindow(win)),
+
+    exampleFileUrl: () => {
+      return baseUrl + "example-style.json";
+    },
+    skipTargetLayerList: () =>
+      this.helper.get.elementByTestId("skip-target-layer-list"),
+    skipTargetLayerEditor: () =>
+      this.helper.get.elementByTestId("skip-target-layer-editor"),
+    canvas: () => this.helper.get.element("canvas"),
+    searchControl: () => this.helper.get.element('.maplibregl-ctrl-geocoder')
+  };
+}

cypress/e2e/modal-driver.ts

@@ -0,0 +1,40 @@
+import { v1 as uuid } from "uuid";
+import MaputnikCypressHelper from "./maputnik-cypress-helper";
+
+export default class ModalDriver {
+  private helper = new MaputnikCypressHelper();
+
+  public when = {
+    fillLayers: (opts: { type: string; layer?: string; id?: string }) => {
+      // Having logic in test code is an anti pattern.
+      // This should be splitted to multiple single responsibility functions
+      let type = opts.type;
+      let layer = opts.layer;
+      let id;
+      if (opts.id) {
+        id = opts.id;
+      } else {
+        id = `${type}:${uuid()}`;
+      }
+      this.helper.when.selectOption("add-layer.layer-type.select", type);
+      this.helper.when.type("add-layer.layer-id.input", id);
+
+      if (layer) {
+        this.helper.when.within(() => {
+          this.helper.get.element("input").type(layer!);
+        }, "add-layer.layer-source-block");
+      }
+      this.helper.when.click("add-layer");
+
+      return id;
+    },
+
+    open: () => {
+      this.helper.when.click("layer-list:add-layer");
+    },
+
+    close: (key: string) => {
+      this.helper.when.click(key + ".close-modal");
+    },
+  };
+}

cypress/e2e/modals.cy.ts

@@ -0,0 +1,180 @@
+import { MaputnikDriver } from "./maputnik-driver";
+
+describe("modals", () => {
+  let { beforeAndAfter, when, get, then } = new MaputnikDriver();
+  beforeAndAfter();
+
+  beforeEach(() => {
+    when.setStyle("");
+  });
+  describe("open", () => {
+    beforeEach(() => {
+      when.click("nav:open");
+    });
+
+    it("close", () => {
+      when.modal.close("modal:open");
+      then(get.elementByTestId("modal:open")).shouldNotExist();
+    });
+
+    it.skip("upload", () => {
+      // HM: I was not able to make the following choose file actually to select a file and close the modal...
+      when.chooseExampleFile();
+      then(get.responseBody("example-style.json")).shouldEqualToStoredStyle();
+    });
+
+    describe("when click open url", () => {
+      beforeEach(() => {
+        let styleFileUrl = get.exampleFileUrl();
+
+        when.setValue("modal:open.url.input", styleFileUrl);
+        when.click("modal:open.url.button");
+        when.wait(200);
+      });
+      it("load from url", () => {
+        then(get.responseBody("example-style.json")).shouldEqualToStoredStyle();
+      });
+    });
+  });
+
+  describe("shortcuts", () => {
+    it("open/close", () => {
+      when.setStyle("");
+      when.typeKeys("?");
+      when.modal.close("modal:shortcuts");
+      then(get.elementByTestId("modal:shortcuts")).shouldNotExist();
+    });
+  });
+
+  describe("export", () => {
+    beforeEach(() => {
+      when.click("nav:export");
+    });
+
+    it("close", () => {
+      when.modal.close("modal:export");
+      then(get.elementByTestId("modal:export")).shouldNotExist();
+    });
+
+    // TODO: Work out how to download a file and check the contents
+    it("download");
+  });
+
+  describe("sources", () => {
+    it("active sources");
+    it("public source");
+    it("add new source");
+  });
+
+  describe("inspect", () => {
+    it("toggle", () => {
+      // There is no assertion in this test
+      when.setStyle("geojson");
+      when.select("maputnik-select", "inspect");
+    });
+  });
+
+  describe("style settings", () => {
+    beforeEach(() => {
+      when.click("nav:settings");
+    });
+
+    describe("when click name filed spec information", () => {
+      beforeEach(() => {
+        when.click("field-doc-button-Name");
+      });
+
+      it("should show the spec information", () => {
+        then(get.elementsText("spec-field-doc")).shouldInclude(
+          "name for the style"
+        );
+      });
+    });
+
+    describe("when set name and click owner", () => {
+      beforeEach(() => {
+        when.setValue("modal:settings.name", "foobar");
+        when.click("modal:settings.owner");
+        when.wait(200);
+      });
+
+      it("show name specifications", () => {
+        then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+          name: "foobar",
+        });
+      });
+    });
+
+    describe("when set owner and click name", () => {
+      beforeEach(() => {
+        when.setValue("modal:settings.owner", "foobar");
+        when.click("modal:settings.name");
+        when.wait(200);
+      });
+      it("should update owner in local storage", () => {
+        then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+          owner: "foobar",
+        });
+      });
+    });
+
+    it("sprite url", () => {
+      when.setValue("modal:settings.sprite", "http://example.com");
+      when.click("modal:settings.name");
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        sprite: "http://example.com",
+      });
+    });
+    it("glyphs url", () => {
+      let glyphsUrl = "http://example.com/{fontstack}/{range}.pbf";
+      when.setValue("modal:settings.glyphs", glyphsUrl);
+      when.click("modal:settings.name");
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        glyphs: glyphsUrl,
+      });
+    });
+
+    it("maptiler access token", () => {
+      let apiKey = "testing123";
+      when.setValue(
+        "modal:settings.maputnik:openmaptiles_access_token",
+        apiKey
+      );
+      when.click("modal:settings.name");
+      then(
+        get.styleFromLocalStorage().pipe((style) => style.metadata)
+      ).shouldInclude({
+        "maputnik:openmaptiles_access_token": apiKey,
+      });
+    });
+
+    it("thunderforest access token", () => {
+      let apiKey = "testing123";
+      when.setValue(
+        "modal:settings.maputnik:thunderforest_access_token",
+        apiKey
+      );
+      when.click("modal:settings.name");
+      then(
+        get.styleFromLocalStorage().pipe((style) => style.metadata)
+      ).shouldInclude({ "maputnik:thunderforest_access_token": apiKey });
+    });
+
+    it("style renderer", () => {
+      cy.on("uncaught:exception", () => false); // this is due to the fact that this is an invalid style for openlayers
+      when.select("modal:settings.maputnik:renderer", "ol");
+      then(get.inputValue("modal:settings.maputnik:renderer")).shouldEqual(
+        "ol"
+      );
+
+      when.click("modal:settings.name");
+      then(get.styleFromLocalStorage()).shouldDeepNestedInclude({
+        metadata: { "maputnik:renderer": "ol" },
+      });
+    });
+  });
+
+  describe("sources", () => {
+    it("toggle");
+  });
+});

cypress/fixtures/example-layer-style.json

@@ -0,0 +1,18 @@
+{
+  "id": "test-style",
+  "version": 8,
+  "name": "Test Style",
+  "metadata": {
+    "maputnik:renderer": "mlgljs"
+  },
+  "sources": {},
+  "glyphs": "https://example.local/fonts/{fontstack}/{range}.pbf",
+  "sprites": "https://example.local/fonts/{fontstack}/{range}.pbf",
+  "layers": [
+    {
+      "id": "background",
+      "type": "background"
+    }
+  ]
+}
+

cypress/fixtures/example-style.json

@@ -3,7 +3,7 @@
   "version": 8,
   "name": "Test Style",
   "metadata": {
-    "maputnik:renderer": "mbgljs"
+    "maputnik:renderer": "mlgljs"
   },
   "sources": {},
   "glyphs": "https://example.local/fonts/{fontstack}/{range}.pbf",

cypress/fixtures/geojson-raster-style.json

@@ -0,0 +1,34 @@
+{
+    "id": "test-style",
+    "version": 8,
+    "name": "Test Style",
+    "metadata": {
+        "maputnik:renderer": "mlgljs"
+    },
+    "sources": {
+        "example": {
+            "type": "vector",
+            "data": {
+                "type": "FeatureCollection",
+                "features":[{
+                    "type": "Feature",
+                    "properties": {
+                        "name": "Dinagat Islands"
+                    },
+                    "geometry":{
+                        "type": "Point",
+                        "coordinates": [125.6, 10.1]
+                    }
+                }]
+            }
+        },
+        "raster": {
+            "tileSize": 256,
+            "tiles": ["http://localhost/example/{x}/{y}/{z}"],
+            "type": "raster"
+        }
+    },
+    "glyphs": "https://example.local/fonts/{fontstack}/{range}.pbf",
+    "sprites": "https://example.local/fonts/{fontstack}/{range}.pbf",
+    "layers": []
+  }

cypress/fixtures/geojson-style.json

@@ -0,0 +1,29 @@
+{
+    "id": "test-style",
+    "version": 8,
+    "name": "Test Style",
+    "metadata": {
+        "maputnik:renderer": "mlgljs"
+    },
+    "sources": {
+        "example": {
+            "type": "vector",
+            "data": {
+                "type": "FeatureCollection",
+                "features":[{
+                    "type": "Feature",
+                    "properties": {
+                        "name": "Dinagat Islands"
+                    },
+                    "geometry":{
+                        "type": "Point",
+                        "coordinates": [125.6, 10.1]
+                    }
+                }]
+            }
+        }
+    },
+    "glyphs": "https://example.local/fonts/{fontstack}/{range}.pbf",
+    "sprites": "https://example.local/fonts/{fontstack}/{range}.pbf",
+    "layers": []
+  }

cypress/fixtures/raster-style.json

@@ -0,0 +1,18 @@
+{
+    "id": "test-style",
+    "version": 8,
+    "name": "Test Style",
+    "metadata": {
+      "maputnik:renderer": "mlgljs"
+    },
+    "sources": {
+        "raster": {
+            "tileSize": 256,
+            "tiles": ["http://localhost/example/{x}/{y}/{z}"],
+            "type": "raster"
+        }
+      },
+    "glyphs": "https://example.local/fonts/{fontstack}/{range}.pbf",
+    "sprites": "https://example.local/fonts/{fontstack}/{range}.pbf",
+    "layers": []
+  }

cypress/support/commands.ts

@@ -0,0 +1,37 @@
+/// <reference types="cypress" />
+// ***********************************************
+// This example commands.ts shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add('login', (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add('drag', { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add('dismiss', { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite('visit', (originalFn, url, options) => { ... })
+//
+// declare global {
+//   namespace Cypress {
+//     interface Chainable {
+//       login(email: string, password: string): Chainable<void>
+//       drag(subject: string, options?: Partial<TypeOptions>): Chainable<Element>
+//       dismiss(subject: string, options?: Partial<TypeOptions>): Chainable<Element>
+//       visit(originalFn: CommandOriginalFn, url: string, options: Partial<VisitOptions>): Chainable<Element>
+//     }
+//   }
+// }

cypress/support/e2e.ts

@@ -0,0 +1,22 @@
+// ***********************************************************
+// This example support/e2e.ts is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+// Import commands.js using ES2015 syntax:
+import "@cypress/code-coverage/support";
+import "cypress-plugin-tab";
+import "./commands";
+
+// Alternatively you can use CommonJS syntax:
+// require('./commands')

index.html

@@ -2,76 +2,46 @@
 <html lang="en">
 <head>
   <meta charset="utf-8">
-  <title><%= htmlWebpackPlugin.options.title %></title>
+  <title>Maputnik</title>
   <meta name="viewport" content="width=device-width, initial-scale=1">
-  <link rel="manifest" href="manifest.json">
+  <link rel="manifest" href="src/manifest.json">
+  <link rel="icon" href="src/favicon.ico" type="image/x-icon" />
   <style>
     html {
       background-color: rgb(28, 31, 36);
     }
-    #loader,
-    #loader:before,
-    #loader:after {
-      border-radius: 50%;
-      width: 2.5em;
-      height: 2.5em;
-      -webkit-animation-fill-mode: both;
-      animation-fill-mode: both;
-      -webkit-animation: pulseload 1.8s infinite ease-in-out;
-      animation: pulseload 1.8s infinite ease-in-out;
-    }
-    #loader {
-      color: #ffffff;
-      font-size: 10px;
-      margin: 80px auto;
-      position: relative;
-      text-indent: -9999em;
-      -webkit-transform: translateZ(0);
-      -ms-transform: translateZ(0);
-      transform: translateZ(0);
-      -webkit-animation-delay: -0.16s;
-      animation-delay: -0.16s;
-    }
-    #loader:before,
-    #loader:after {
-      content: '';
+
+    .loading {
+      text-align: center;
       position: absolute;
+      width: 100vw;
+      height: 100vh;
       top: 0;
+      left: 0;
+      display: flex;
+      flex-direction: column;
+      justify-content: center;
+      align-items: center;
     }
-    #loader:before {
-      left: -3.5em;
-      -webkit-animation-delay: -0.32s;
-      animation-delay: -0.32s;
+
+    .loading__logo img {
+      width: 200px;
+      height: 200px;
     }
-    #loader:after {
-      left: 3.5em;
-    }
-    @-webkit-keyframes pulseload {
-      0%,
-      80%,
-      100% {
-        box-shadow: 0 2.5em 0 -1.3em;
-      }
-      40% {
-        box-shadow: 0 2.5em 0 0;
-      }
-    }
-    @keyframes pulseload {
-      0%,
-      80%,
-      100% {
-        box-shadow: 0 2.5em 0 -1.3em;
-      }
-      40% {
-        box-shadow: 0 2.5em 0 0;
-      }
+
+    .loading__text {
+      font-family: sans-serif;
+      color: white;
+      font-size: 1.2em;
+      padding-bottom: 2em;
     }
+
   </style>
 </head>
 <body>
-  <!-- TODO: Import dynamically -->
   <!-- From <https://github.com/hail2u/color-blindness-emulation> -->
   <svg
+    aria-hidden="true"
     xmlns="http://www.w3.org/2000/svg"
     version="1.1">
     <defs>
@@ -150,8 +120,13 @@
     </defs>
   </svg>
 
-  <div id="app">
-    <div id="loader">Loading...</div>
+  <div id="app"></div>
+  <div class="loading">
+    <div class="loading__logo">
+      <img inline src="node_modules/maputnik-design/logos/logo-loading.svg" />
+    </div>
+    <div class="loading__text">Loading&hellip;</div>
   </div>
+  <script type="module" src="/src/index.jsx"></script>
 </body>
 </html>

package.json

@@ -1,62 +1,72 @@
 {
   "name": "maputnik",
-  "version": "1.6.1",
-  "description": "A MapboxGL visual style editor",
+  "version": "2.0.0",
+  "description": "A MapLibre GL visual style editor",
+  "type": "module",
   "main": "''",
   "scripts": {
-    "stats": "webpack --config config/webpack.production.config.js --profile --json > stats.json",
-    "build": "webpack --config config/webpack.production.config.js --progress --profile --colors",
-    "test": "cross-env NODE_ENV=test wdio config/wdio.conf.js",
-    "test-watch": "cross-env NODE_ENV=test wdio config/wdio.conf.js --watch",
-    "start": "webpack-dev-server --progress --profile --colors --config config/webpack.config.js",
-    "lint": "eslint --ext js --ext jsx src test",
-    "lint-styles": "stylelint \"src/styles/*.scss\""
+    "start": "vite",
+    "build": "tsc && vite build --base=/maputnik/",
+    "lint": "eslint ./src ./cypress --ext ts,tsx,js,jsx --report-unused-disable-directives --max-warnings 0",
+    "test": "cypress run",
+    "cy:open": "cypress open",
+    "lint-css": "stylelint \"src/styles/*.scss\""
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/maputnik/editor"
+    "url": "https://github.com/maplibre/maputnik"
   },
   "author": "Lukas Martinelli",
   "license": "MIT",
-  "homepage": "https://github.com/maputnik/editor#readme",
+  "homepage": "https://github.com/maplibre/maputnik#readme",
   "dependencies": {
-    "@babel/runtime": "^7.6.3",
     "@mapbox/mapbox-gl-rtl-text": "^0.2.3",
-    "@mapbox/mapbox-gl-style-spec": "^13.9.0",
-    "classnames": "^2.2.6",
-    "codemirror": "^5.49.0",
-    "color": "^3.1.2",
-    "detect-browser": "^4.7.0",
-    "file-saver": "^2.0.2",
+    "@maplibre/maplibre-gl-geocoder": "^1.5.0",
+    "@maplibre/maplibre-gl-style-spec": "^20.1.0",
+    "@mdi/js": "^6.6.96",
+    "@mdi/react": "^1.5.0",
+    "@typescript-eslint/eslint-plugin": "^6.16.0",
+    "@typescript-eslint/parser": "^6.16.0",
+    "array-move": "^4.0.0",
+    "buffer": "^6.0.3",
+    "classnames": "^2.3.1",
+    "codemirror": "^5.65.2",
+    "color": "^4.2.3",
+    "detect-browser": "^5.3.0",
+    "file-saver": "^2.0.5",
+    "json-stringify-pretty-compact": "^3.0.0",
+    "json-to-ast": "^2.1.0",
     "jsonlint": "github:josdejong/jsonlint#85a19d7",
+    "lodash": "^4.17.21",
     "lodash.capitalize": "^4.2.1",
     "lodash.clamp": "^4.0.3",
     "lodash.clonedeep": "^4.5.0",
     "lodash.get": "^4.4.2",
     "lodash.isequal": "^4.5.0",
     "lodash.throttle": "^4.1.1",
-    "mapbox-gl": "^1.4.1",
     "mapbox-gl-inspect": "^1.3.1",
-    "maputnik-design": "github:maputnik/design",
-    "ol": "^6.0.1",
-    "ol-mapbox-style": "^5.0.2",
-    "prop-types": "^15.7.2",
-    "react": "^16.10.2",
-    "react-aria-menubutton": "^6.2.0",
-    "react-aria-modal": "^4.0.0",
+    "maplibre-gl": "^4.0.0",
+    "maputnik-design": "github:maputnik/design#172b06c",
+    "ol": "^6.14.1",
+    "ol-mapbox-style": "^7.1.1",
+    "prop-types": "^15.8.1",
+    "react": "^16.0.0",
+    "react-accessible-accordion": "^4.0.0",
+    "react-aria-menubutton": "^7.0.3",
+    "react-aria-modal": "^4.0.1",
     "react-autobind": "^1.0.6",
     "react-autocomplete": "^1.8.1",
-    "react-codemirror2": "^6.0.0",
-    "react-collapse": "^4.0.3",
-    "react-color": "^2.17.3",
-    "react-dom": "^16.10.2",
+    "react-collapse": "^5.1.1",
+    "react-color": "^2.19.3",
+    "react-dom": "^16.0.0",
     "react-file-reader-input": "^2.0.0",
     "react-icon-base": "^2.1.2",
-    "react-icons": "^3.7.0",
-    "react-motion": "^0.5.2",
-    "react-sortable-hoc": "^1.10.1",
-    "reconnecting-websocket": "^4.2.0",
-    "slugify": "^1.3.5",
+    "react-icons": "^4.3.1",
+    "react-sortable-hoc": "^2.0.0",
+    "reconnecting-websocket": "^4.4.0",
+    "sass": "^1.50.0",
+    "slugify": "^1.6.5",
+    "string-hash": "^1.1.3",
     "url": "^0.11.0"
   },
   "jshintConfig": {
@@ -76,75 +86,53 @@
       ]
     }
   },
-  "eslintConfig": {
-    "plugins": [
-      "react"
-    ],
-    "extends": [
-      "plugin:react/recommended"
-    ],
-    "env": {
-      "browser": true,
-      "node": true,
-      "es6": true
-    },
-    "parser": "babel-eslint",
-    "parserOptions": {
-      "ecmaVersion": 6,
-      "sourceType": "module",
-      "ecmaFeatures": {
-        "impliedStrict": true,
-        "experimentalObjectRestSpread": true,
-        "jsx": true
-      }
-    }
-  },
   "devDependencies": {
-    "@babel/core": "^7.6.3",
-    "@babel/plugin-proposal-class-properties": "^7.5.5",
-    "@babel/plugin-transform-runtime": "^7.6.2",
-    "@babel/preset-env": "^7.6.3",
-    "@babel/preset-flow": "^7.0.0",
-    "@babel/preset-react": "^7.6.3",
-    "@wdio/cli": "^5.14.5",
-    "@wdio/local-runner": "^5.14.5",
-    "@wdio/mocha-framework": "^5.14.4",
-    "@wdio/selenium-standalone-service": "^5.13.2",
-    "@wdio/spec-reporter": "^5.14.5",
-    "@wdio/sync": "^5.14.4",
-    "babel-eslint": "^10.0.3",
-    "babel-loader": "8.0.6",
-    "babel-plugin-istanbul": "^5.2.0",
-    "babel-plugin-static-fs": "^3.0.0",
-    "copy-webpack-plugin": "^5.0.4",
+    "@cypress/code-coverage": "^3.12.15",
+    "@istanbuljs/nyc-config-typescript": "^1.0.2",
+    "@rollup/plugin-replace": "^5.0.5",
+    "@shellygo/cypress-test-utils": "^2.0.17",
+    "@types/codemirror": "^5.60.15",
+    "@types/color": "^3.0.6",
+    "@types/cors": "^2.8.17",
+    "@types/file-saver": "^2.0.7",
+    "@types/geojson": "^7946.0.13",
+    "@types/json-to-ast": "^2.1.4",
+    "@types/lodash.capitalize": "^4.2.9",
+    "@types/lodash.clamp": "^4.0.9",
+    "@types/lodash.clonedeep": "^4.5.9",
+    "@types/lodash.get": "^4.4.9",
+    "@types/lodash.isequal": "^4.5.8",
+    "@types/lodash.throttle": "^4.1.9",
+    "@types/react": "^16.14.52",
+    "@types/react-aria-menubutton": "^6.2.13",
+    "@types/react-aria-modal": "^4.0.9",
+    "@types/react-autocomplete": "^1.8.9",
+    "@types/react-collapse": "^5.0.4",
+    "@types/react-color": "^3.0.10",
+    "@types/react-dom": "^16.9.24",
+    "@types/react-file-reader-input": "^2.0.4",
+    "@types/react-icon-base": "^2.1.6",
+    "@types/string-hash": "^1.1.3",
+    "@types/uuid": "^9.0.7",
+    "@vitejs/plugin-react": "^4.2.0",
     "cors": "^2.8.5",
-    "cross-env": "^6.0.3",
-    "css-loader": "^3.2.0",
-    "eslint": "^6.5.1",
-    "eslint-plugin-react": "^7.16.0",
-    "express": "^4.17.1",
-    "file-loader": "^4.2.0",
-    "html-webpack-plugin": "^3.2.0",
-    "is-docker": "^2.0.0",
+    "cypress": "^13.6.1",
+    "eslint": "^8.56.0",
+    "eslint-plugin-react": "^7.33.2",
+    "eslint-plugin-react-hooks": "^4.6.0",
+    "eslint-plugin-react-refresh": "^0.4.5",
+    "express": "^4.17.3",
     "istanbul": "^0.4.5",
-    "istanbul-lib-coverage": "^2.0.5",
-    "mkdirp": "^0.5.1",
-    "mocha": "^6.2.1",
-    "node-sass": "^4.12.0",
-    "react-hot-loader": "^4.12.15",
-    "sass-loader": "^8.0.0",
-    "selenium-standalone": "^6.16.0",
-    "style-loader": "^1.0.0",
-    "stylelint": "^11.0.0",
-    "stylelint-config-recommended-scss": "^4.0.0",
-    "stylelint-scss": "^3.11.1",
-    "transform-loader": "^0.2.4",
-    "uuid": "^3.3.3",
-    "webdriverio": "^5.14.5",
-    "webpack": "^4.41.0",
-    "webpack-bundle-analyzer": "^3.5.2",
-    "webpack-cleanup-plugin": "^0.5.1",
-    "webpack-cli": "^3.3.9",
-    "webpack-dev-server": "^3.8.2"
+    "istanbul-lib-coverage": "^3.2.0",
+    "mocha": "^9.2.2",
+    "postcss": "^8.4.12",
+    "react-hot-loader": "^4.13.0",
+    "stylelint": "^14.6.1",
+    "stylelint-config-recommended-scss": "^6.0.0",
+    "stylelint-scss": "^4.2.0",
+    "typescript": "^5.3.3",
+    "uuid": "^8.3.2",
+    "vite": "^5.0.12",
+    "vite-plugin-istanbul": "^5.0.0"
   }
 }

src/components/App.jsx

@@ -1,724 +0,0 @@
-import autoBind from 'react-autobind';
-import React from 'react'
-import cloneDeep from 'lodash.clonedeep'
-import clamp from 'lodash.clamp'
-import get from 'lodash.get'
-import {arrayMove} from 'react-sortable-hoc'
-import url from 'url'
-
-import MapboxGlMap from './map/MapboxGlMap'
-import OpenLayersMap from './map/OpenLayersMap'
-import LayerList from './layers/LayerList'
-import LayerEditor from './layers/LayerEditor'
-import Toolbar from './Toolbar'
-import AppLayout from './AppLayout'
-import MessagePanel from './MessagePanel'
-
-import SettingsModal from './modals/SettingsModal'
-import ExportModal from './modals/ExportModal'
-import SourcesModal from './modals/SourcesModal'
-import OpenModal from './modals/OpenModal'
-import ShortcutsModal from './modals/ShortcutsModal'
-import SurveyModal from './modals/SurveyModal'
-import DebugModal from './modals/DebugModal'
-
-import { downloadGlyphsMetadata, downloadSpriteMetadata } from '../libs/metadata'
-import {latest, validate} from '@mapbox/mapbox-gl-style-spec'
-import style from '../libs/style'
-import { initialStyleUrl, loadStyleUrl, removeStyleQuerystring } from '../libs/urlopen'
-import { undoMessages, redoMessages } from '../libs/diffmessage'
-import { StyleStore } from '../libs/stylestore'
-import { ApiStyleStore } from '../libs/apistore'
-import { RevisionStore } from '../libs/revisions'
-import LayerWatcher from '../libs/layerwatcher'
-import tokens from '../config/tokens.json'
-import isEqual from 'lodash.isequal'
-import Debug from '../libs/debug'
-import queryUtil from '../libs/query-util'
-
-import MapboxGl from 'mapbox-gl'
-
-
-// Similar functionality as <https://github.com/mapbox/mapbox-gl-js/blob/7e30aadf5177486c2cfa14fe1790c60e217b5e56/src/util/mapbox.js>
-function normalizeSourceURL (url, apiToken="") {
-  const matches = url.match(/^mapbox:\/\/(.*)/);
-  if (matches) {
-    // mapbox://mapbox.mapbox-streets-v7
-    return `https://api.mapbox.com/v4/${matches[1]}.json?secure&access_token=${apiToken}`
-  }
-  else {
-    return url;
-  }
-}
-
-function setFetchAccessToken(url, mapStyle) {
-  const matchesTilehosting = url.match(/\.tilehosting\.com/);
-  const matchesMaptiler = url.match(/\.maptiler\.com/);
-  const matchesThunderforest = url.match(/\.thunderforest\.com/);
-  if (matchesTilehosting || matchesMaptiler) {
-    const accessToken = style.getAccessToken("openmaptiles", mapStyle, {allowFallback: true})
-    if (accessToken) {
-      return url.replace('{key}', accessToken)
-    }
-  }
-  else if (matchesThunderforest) {
-    const accessToken = style.getAccessToken("thunderforest", mapStyle, {allowFallback: true})
-    if (accessToken) {
-      return url.replace('{key}', accessToken)
-    }
-  }
-  else {
-    return url;
-  }
-}
-
-function updateRootSpec(spec, fieldName, newValues) {
-  return {
-    ...spec,
-    $root: {
-      ...spec.$root,
-      [fieldName]: {
-        ...spec.$root[fieldName],
-        values: newValues
-      }
-    }
-  }
-}
-
-export default class App extends React.Component {
-  constructor(props) {
-    super(props)
-    autoBind(this);
-
-    this.revisionStore = new RevisionStore()
-    const params = new URLSearchParams(window.location.search.substring(1))
-    let port = params.get("localport")
-    if (port == null && (window.location.port != 80 && window.location.port != 443)) {
-      port = window.location.port
-    }
-    this.styleStore = new ApiStyleStore({
-      onLocalStyleChange: mapStyle => this.onStyleChanged(mapStyle, false),
-      port: port,
-      host: params.get("localhost")
-    })
-
-
-    const shortcuts = [
-      {
-        key: "?",
-        handler: () => {
-          this.toggleModal("shortcuts");
-        }
-      },
-      {
-        key: "o",
-        handler: () => {
-          this.toggleModal("open");
-        }
-      },
-      {
-        key: "e",
-        handler: () => {
-          this.toggleModal("export");
-        }
-      },
-      {
-        key: "d",
-        handler: () => {
-          this.toggleModal("sources");
-        }
-      },
-      {
-        key: "s",
-        handler: () => {
-          this.toggleModal("settings");
-        }
-      },
-      {
-        key: "i",
-        handler: () => {
-          this.setMapState(
-            this.state.mapState === "map" ? "inspect" : "map"
-          );
-        }
-      },
-      {
-        key: "m",
-        handler: () => {
-          document.querySelector(".mapboxgl-canvas").focus();
-        }
-      },
-      {
-        key: "!",
-        handler: () => {
-          this.toggleModal("debug");
-        }
-      },
-    ]
-
-    document.body.addEventListener("keyup", (e) => {
-      if(e.key === "Escape") {
-        e.target.blur();
-        document.body.focus();
-      }
-      else if(this.state.isOpen.shortcuts || document.activeElement === document.body) {
-        const shortcut = shortcuts.find((shortcut) => {
-          return (shortcut.key === e.key)
-        })
-
-        if(shortcut) {
-          this.setModal("shortcuts", false);
-          shortcut.handler(e);
-        }
-      }
-    })
-
-    const styleUrl = initialStyleUrl()
-    if(styleUrl && window.confirm("Load style from URL: " + styleUrl + " and discard current changes?")) {
-      this.styleStore = new StyleStore()
-      loadStyleUrl(styleUrl, mapStyle => this.onStyleChanged(mapStyle))
-      removeStyleQuerystring()
-    } else {
-      if(styleUrl) {
-        removeStyleQuerystring()
-      }
-      this.styleStore.init(err => {
-        if(err) {
-          console.log('Falling back to local storage for storing styles')
-          this.styleStore = new StyleStore()
-        }
-        this.styleStore.latestStyle(mapStyle => this.onStyleChanged(mapStyle))
-
-        if(Debug.enabled()) {
-          Debug.set("maputnik", "styleStore", this.styleStore);
-          Debug.set("maputnik", "revisionStore", this.revisionStore);
-        }
-      })
-    }
-
-    if(Debug.enabled()) {
-      Debug.set("maputnik", "revisionStore", this.revisionStore);
-      Debug.set("maputnik", "styleStore", this.styleStore);
-    }
-
-    const queryObj = url.parse(window.location.href, true).query;
-
-    this.state = {
-      errors: [],
-      infos: [],
-      mapStyle: style.emptyStyle,
-      selectedLayerIndex: 0,
-      sources: {},
-      vectorLayers: {},
-      mapState: "map",
-      spec: latest,
-      isOpen: {
-        settings: false,
-        sources: false,
-        open: false,
-        shortcuts: false,
-        export: false,
-        survey: localStorage.hasOwnProperty('survey') ? false : true,
-        debug: false,
-      },
-      mapboxGlDebugOptions: {
-        showTileBoundaries: false,
-        showCollisionBoxes: false,
-        showOverdrawInspector: false,
-      },
-      openlayersDebugOptions: {
-        debugToolbox: false,
-      },
-    }
-
-    this.layerWatcher = new LayerWatcher({
-      onVectorLayersChange: v => this.setState({ vectorLayers: v })
-    })
-  }
-
-  handleKeyPress = (e) => {
-    if(navigator.platform.toUpperCase().indexOf('MAC') >= 0) {
-      if(e.metaKey && e.shiftKey && e.keyCode === 90) {
-        e.preventDefault();
-        this.onRedo(e);
-      }
-      else if(e.metaKey && e.keyCode === 90) {
-        e.preventDefault();
-        this.onUndo(e);
-      }
-    }
-    else {
-      if(e.ctrlKey && e.keyCode === 90) {
-        e.preventDefault();
-        this.onUndo(e);
-      }
-      else if(e.ctrlKey && e.keyCode === 89) {
-        e.preventDefault();
-        this.onRedo(e);
-      }
-    }
-  }
-
-  componentDidMount() {
-    window.addEventListener("keydown", this.handleKeyPress);
-  }
-
-  componentWillUnmount() {
-    window.removeEventListener("keydown", this.handleKeyPress);
-  }
-
-  saveStyle(snapshotStyle) {
-    this.styleStore.save(snapshotStyle)
-  }
-
-  updateFonts(urlTemplate) {
-    const metadata = this.state.mapStyle.metadata || {}
-    const accessToken = metadata['maputnik:openmaptiles_access_token'] || tokens.openmaptiles
-
-    let glyphUrl = (typeof urlTemplate === 'string')? urlTemplate.replace('{key}', accessToken): urlTemplate;
-    downloadGlyphsMetadata(glyphUrl, fonts => {
-      this.setState({ spec: updateRootSpec(this.state.spec, 'glyphs', fonts)})
-    })
-  }
-
-  updateIcons(baseUrl) {
-    downloadSpriteMetadata(baseUrl, icons => {
-      this.setState({ spec: updateRootSpec(this.state.spec, 'sprite', icons)})
-    })
-  }
-
-  onChangeMetadataProperty = (property, value) => {
-    // If we're changing renderer reset the map state.
-    if (
-      property === 'maputnik:renderer' &&
-      value !== get(this.state.mapStyle, ['metadata', 'maputnik:renderer'], 'mbgljs')
-    ) {
-      this.setState({
-        mapState: 'map'
-      });
-    }
-
-    const changedStyle = {
-      ...this.state.mapStyle,
-      metadata: {
-        ...this.state.mapStyle.metadata,
-        [property]: value
-      }
-    }
-    this.onStyleChanged(changedStyle)
-  }
-
-  onStyleChanged = (newStyle, save=true) => {
-
-    const errors = validate(newStyle, latest)
-    if(errors.length === 0) {
-
-      if(newStyle.glyphs !== this.state.mapStyle.glyphs) {
-        this.updateFonts(newStyle.glyphs)
-      }
-      if(newStyle.sprite !== this.state.mapStyle.sprite) {
-        this.updateIcons(newStyle.sprite)
-      }
-
-      this.revisionStore.addRevision(newStyle)
-      if(save) this.saveStyle(newStyle)
-      this.setState({
-        mapStyle: newStyle,
-        errors: [],
-      })
-    } else {
-      this.setState({
-        errors: errors.map(err => err.message)
-      })
-    }
-
-    this.fetchSources();
-  }
-
-  onUndo = () => {
-    const activeStyle = this.revisionStore.undo()
-    const messages = undoMessages(this.state.mapStyle, activeStyle)
-    this.saveStyle(activeStyle)
-    this.setState({
-      mapStyle: activeStyle,
-      infos: messages,
-    })
-  }
-
-  onRedo = () => {
-    const activeStyle = this.revisionStore.redo()
-    const messages = redoMessages(this.state.mapStyle, activeStyle)
-    this.saveStyle(activeStyle)
-    this.setState({
-      mapStyle: activeStyle,
-      infos: messages,
-    })
-  }
-
-  onMoveLayer = (move) => {
-    let { oldIndex, newIndex } = move;
-    let layers = this.state.mapStyle.layers;
-    oldIndex = clamp(oldIndex, 0, layers.length-1);
-    newIndex = clamp(newIndex, 0, layers.length-1);
-    if(oldIndex === newIndex) return;
-
-    if (oldIndex === this.state.selectedLayerIndex) {
-      this.setState({
-        selectedLayerIndex: newIndex
-      });
-    }
-
-    layers = layers.slice(0);
-    layers = arrayMove(layers, oldIndex, newIndex);
-    this.onLayersChange(layers);
-  }
-
-  onLayersChange = (changedLayers) => {
-    const changedStyle = {
-      ...this.state.mapStyle,
-      layers: changedLayers
-    }
-    this.onStyleChanged(changedStyle)
-  }
-
-  onLayerDestroy = (layerId) => {
-    let layers = this.state.mapStyle.layers;
-    const remainingLayers = layers.slice(0);
-    const idx = style.indexOfLayer(remainingLayers, layerId)
-    remainingLayers.splice(idx, 1);
-    this.onLayersChange(remainingLayers);
-  }
-
-  onLayerCopy = (layerId) => {
-    let layers = this.state.mapStyle.layers;
-    const changedLayers = layers.slice(0)
-    const idx = style.indexOfLayer(changedLayers, layerId)
-
-    const clonedLayer = cloneDeep(changedLayers[idx])
-    clonedLayer.id = clonedLayer.id + "-copy"
-    changedLayers.splice(idx, 0, clonedLayer)
-    this.onLayersChange(changedLayers)
-  }
-
-  onLayerVisibilityToggle = (layerId) => {
-    let layers = this.state.mapStyle.layers;
-    const changedLayers = layers.slice(0)
-    const idx = style.indexOfLayer(changedLayers, layerId)
-
-    const layer = { ...changedLayers[idx] }
-    const changedLayout = 'layout' in layer ? {...layer.layout} : {}
-    changedLayout.visibility = changedLayout.visibility === 'none' ? 'visible' : 'none'
-
-    layer.layout = changedLayout
-    changedLayers[idx] = layer
-    this.onLayersChange(changedLayers)
-  }
-
-
-  onLayerIdChange = (oldId, newId) => {
-    const changedLayers = this.state.mapStyle.layers.slice(0)
-    const idx = style.indexOfLayer(changedLayers, oldId)
-
-    changedLayers[idx] = {
-      ...changedLayers[idx],
-      id: newId
-    }
-
-    this.onLayersChange(changedLayers)
-  }
-
-  onLayerChanged = (layer) => {
-    const changedLayers = this.state.mapStyle.layers.slice(0)
-    const idx = style.indexOfLayer(changedLayers, layer.id)
-    changedLayers[idx] = layer
-
-    this.onLayersChange(changedLayers)
-  }
-
-  setMapState = (newState) => {
-    this.setState({
-      mapState: newState
-    })
-  }
-
-  setDefaultValues = (styleObj) => {
-    const metadata = styleObj.metadata || {}
-    if(metadata['maputnik:renderer'] === undefined) {
-      const changedStyle = {
-        ...styleObj,
-        metadata: {
-          ...styleObj.metadata,
-          'maputnik:renderer': 'mbgljs'
-        }
-      }
-      return changedStyle
-    } else {
-      return styleObj
-    }
-  }
-
-  openStyle = (styleObj) => {
-    styleObj = this.setDefaultValues(styleObj)
-    this.onStyleChanged(styleObj)
-  }
-
-  fetchSources() {
-    const sourceList = {...this.state.sources};
-
-    for(let [key, val] of Object.entries(this.state.mapStyle.sources)) {
-      if(sourceList.hasOwnProperty(key)) {
-        continue;
-      }
-
-      sourceList[key] = {
-        type: val.type,
-        layers: []
-      };
-
-      if(!this.state.sources.hasOwnProperty(key) && val.type === "vector" && val.hasOwnProperty("url")) {
-        let url = val.url;
-        try {
-          url = normalizeSourceURL(url, MapboxGl.accessToken);
-        } catch(err) {
-          console.warn("Failed to normalizeSourceURL: ", err);
-        }
-
-        try {
-          url = setFetchAccessToken(url, this.state.mapStyle)
-        } catch(err) {
-          console.warn("Failed to setFetchAccessToken: ", err);
-        }
-
-        fetch(url, {
-          mode: 'cors',
-        })
-          .then((response) => {
-            return response.json();
-          })
-          .then((json) => {
-            if(!json.hasOwnProperty("vector_layers")) {
-              return;
-            }
-
-            // Create new objects before setState
-            const sources = Object.assign({}, this.state.sources);
-
-            for(let layer of json.vector_layers) {
-              sources[key].layers.push(layer.id)
-            }
-
-            console.debug("Updating source: "+key);
-            this.setState({
-              sources: sources
-            });
-          })
-          .catch((err) => {
-            console.error("Failed to process sources for '%s'", url, err);
-          })
-      }
-    }
-
-    if(!isEqual(this.state.sources, sourceList)) {
-      console.debug("Setting sources");
-      this.setState({
-        sources: sourceList
-      })
-    }
-  }
-
-  _getRenderer () {
-    const metadata = this.state.mapStyle.metadata || {};
-    return metadata['maputnik:renderer'] || 'mbgljs';
-  }
-
-  mapRenderer() {
-    const metadata = this.state.mapStyle.metadata || {};
-
-    const mapProps = {
-      mapStyle: style.replaceAccessTokens(this.state.mapStyle, {allowFallback: true}),
-      onDataChange: (e) => {
-        this.layerWatcher.analyzeMap(e.map)
-        this.fetchSources();
-      },
-    }
-
-    const renderer = this._getRenderer();
-
-    let mapElement;
-
-    // Check if OL code has been loaded?
-    if(renderer === 'ol') {
-      mapElement = <OpenLayersMap
-        {...mapProps}
-        debugToolbox={this.state.openlayersDebugOptions.debugToolbox}
-        onLayerSelect={this.onLayerSelect}
-      />
-    } else {
-      mapElement = <MapboxGlMap {...mapProps}
-        options={this.state.mapboxGlDebugOptions}
-        inspectModeEnabled={this.state.mapState === "inspect"}
-        highlightedLayer={this.state.mapStyle.layers[this.state.selectedLayerIndex]}
-        onLayerSelect={this.onLayerSelect} />
-    }
-
-    let filterName;
-    if(this.state.mapState.match(/^filter-/)) {
-      filterName = this.state.mapState.replace(/^filter-/, "");
-    }
-    const elementStyle = {};
-    if (filterName) {
-      elementStyle.filter = `url('#${filterName}')`;
-    };
-
-    return <div style={elementStyle} className="maputnik-map__container">
-      {mapElement}
-    </div>
-  }
-
-  onLayerSelect = (layerId) => {
-    const idx = style.indexOfLayer(this.state.mapStyle.layers, layerId)
-    this.setState({ selectedLayerIndex: idx })
-  }
-
-  setModal(modalName, value) {
-    if(modalName === 'survey' && value === false) {
-      localStorage.setItem('survey', '');
-    }
-
-    this.setState({
-      isOpen: {
-        ...this.state.isOpen,
-        [modalName]: value
-      }
-    })
-  }
-
-  toggleModal(modalName) {
-    this.setModal(modalName, !this.state.isOpen[modalName]);
-  }
-
-  onChangeOpenlayersDebug = (key, value) => {
-    this.setState({
-      openlayersDebugOptions: {
-        ...this.state.openlayersDebugOptions,
-        [key]: value,
-      }
-    });
-  }
-
-  onChangeMaboxGlDebug = (key, value) => {
-    this.setState({
-      mapboxGlDebugOptions: {
-        ...this.state.mapboxGlDebugOptions,
-        [key]: value,
-      }
-    });
-  }
-
-  render() {
-    const layers = this.state.mapStyle.layers || []
-    const selectedLayer = layers.length > 0 ? layers[this.state.selectedLayerIndex] : null
-    const metadata = this.state.mapStyle.metadata || {}
-
-    const toolbar = <Toolbar
-      renderer={this._getRenderer()}
-      mapState={this.state.mapState}
-      mapStyle={this.state.mapStyle}
-      inspectModeEnabled={this.state.mapState === "inspect"}
-      sources={this.state.sources}
-      onStyleChanged={this.onStyleChanged}
-      onStyleOpen={this.onStyleChanged}
-      onSetMapState={this.setMapState}
-      onToggleModal={this.toggleModal.bind(this)}
-    />
-
-    const layerList = <LayerList
-      onMoveLayer={this.onMoveLayer}
-      onLayerDestroy={this.onLayerDestroy}
-      onLayerCopy={this.onLayerCopy}
-      onLayerVisibilityToggle={this.onLayerVisibilityToggle}
-      onLayersChange={this.onLayersChange}
-      onLayerSelect={this.onLayerSelect}
-      selectedLayerIndex={this.state.selectedLayerIndex}
-      layers={layers}
-      sources={this.state.sources}
-    />
-
-    const layerEditor = selectedLayer ? <LayerEditor
-      layer={selectedLayer}
-      layerIndex={this.state.selectedLayerIndex}
-      isFirstLayer={this.state.selectedLayerIndex < 1}
-      isLastLayer={this.state.selectedLayerIndex === this.state.mapStyle.layers.length-1}
-      sources={this.state.sources}
-      vectorLayers={this.state.vectorLayers}
-      spec={this.state.spec}
-      onMoveLayer={this.onMoveLayer}
-      onLayerChanged={this.onLayerChanged}
-      onLayerDestroy={this.onLayerDestroy}
-      onLayerCopy={this.onLayerCopy}
-      onLayerVisibilityToggle={this.onLayerVisibilityToggle}
-      onLayerIdChange={this.onLayerIdChange}
-    /> : null
-
-    const bottomPanel = (this.state.errors.length + this.state.infos.length) > 0 ? <MessagePanel
-      errors={this.state.errors}
-      infos={this.state.infos}
-    /> : null
-
-
-    const modals = <div>
-      <DebugModal
-        renderer={this._getRenderer()}
-        mapboxGlDebugOptions={this.state.mapboxGlDebugOptions}
-        openlayersDebugOptions={this.state.openlayersDebugOptions}
-        onChangeMaboxGlDebug={this.onChangeMaboxGlDebug}
-        onChangeOpenlayersDebug={this.onChangeOpenlayersDebug}
-        isOpen={this.state.isOpen.debug}
-        onOpenToggle={this.toggleModal.bind(this, 'debug')}
-      />
-      <ShortcutsModal
-        ref={(el) => this.shortcutEl = el}
-        isOpen={this.state.isOpen.shortcuts}
-        onOpenToggle={this.toggleModal.bind(this, 'shortcuts')}
-      />
-      <SettingsModal
-        mapStyle={this.state.mapStyle}
-        onStyleChanged={this.onStyleChanged}
-        onChangeMetadataProperty={this.onChangeMetadataProperty}
-        isOpen={this.state.isOpen.settings}
-        onOpenToggle={this.toggleModal.bind(this, 'settings')}
-        openlayersDebugOptions={this.state.openlayersDebugOptions}
-      />
-      <ExportModal
-        mapStyle={this.state.mapStyle}
-        onStyleChanged={this.onStyleChanged}
-        isOpen={this.state.isOpen.export}
-        onOpenToggle={this.toggleModal.bind(this, 'export')}
-      />
-      <OpenModal
-        isOpen={this.state.isOpen.open}
-        onStyleOpen={this.openStyle}
-        onOpenToggle={this.toggleModal.bind(this, 'open')}
-      />
-      <SourcesModal
-        mapStyle={this.state.mapStyle}
-        onStyleChanged={this.onStyleChanged}
-        isOpen={this.state.isOpen.sources}
-        onOpenToggle={this.toggleModal.bind(this, 'sources')}
-      />
-      <SurveyModal
-        isOpen={this.state.isOpen.survey}
-        onOpenToggle={this.toggleModal.bind(this, 'survey')}
-      />
-    </div>
-
-    return <AppLayout
-      toolbar={toolbar}
-      layerList={layerList}
-      layerEditor={layerEditor}
-      map={this.mapRenderer()}
-      bottom={bottomPanel}
-      modals={modals}
-    />
-  }
-}

src/components/App.tsx

@@ -0,0 +1,988 @@
+// @ts-ignore - this can be easily replaced with arrow functions
+import autoBind from 'react-autobind';
+import React from 'react'
+import cloneDeep from 'lodash.clonedeep'
+import clamp from 'lodash.clamp'
+import buffer from 'buffer'
+import get from 'lodash.get'
+import {unset} from 'lodash'
+import {arrayMoveMutable} from 'array-move'
+import hash from "string-hash";
+import {Map, LayerSpecification, StyleSpecification, ValidationError, SourceSpecification} from 'maplibre-gl'
+import {latest, validateStyleMin} from '@maplibre/maplibre-gl-style-spec'
+
+import MapMaplibreGl from './MapMaplibreGl'
+import MapOpenLayers from './MapOpenLayers'
+import LayerList from './LayerList'
+import LayerEditor from './LayerEditor'
+import AppToolbar, { MapState } from './AppToolbar'
+import AppLayout from './AppLayout'
+import MessagePanel from './AppMessagePanel'
+
+import ModalSettings from './ModalSettings'
+import ModalExport from './ModalExport'
+import ModalSources from './ModalSources'
+import ModalOpen from './ModalOpen'
+import ModalShortcuts from './ModalShortcuts'
+import ModalSurvey from './ModalSurvey'
+import ModalDebug from './ModalDebug'
+
+import {downloadGlyphsMetadata, downloadSpriteMetadata} from '../libs/metadata'
+import style from '../libs/style'
+import { initialStyleUrl, loadStyleUrl, removeStyleQuerystring } from '../libs/urlopen'
+import { undoMessages, redoMessages } from '../libs/diffmessage'
+import { StyleStore } from '../libs/stylestore'
+import { ApiStyleStore } from '../libs/apistore'
+import { RevisionStore } from '../libs/revisions'
+import LayerWatcher from '../libs/layerwatcher'
+import tokens from '../config/tokens.json'
+import isEqual from 'lodash.isequal'
+import Debug from '../libs/debug'
+import { SortEnd } from 'react-sortable-hoc';
+import { MapOptions } from 'maplibre-gl';
+
+// Buffer must be defined globally for @maplibre/maplibre-gl-style-spec validate() function to succeed.
+window.Buffer = buffer.Buffer;
+
+function setFetchAccessToken(url: string, mapStyle: StyleSpecification) {
+  const matchesTilehosting = url.match(/\.tilehosting\.com/);
+  const matchesMaptiler = url.match(/\.maptiler\.com/);
+  const matchesThunderforest = url.match(/\.thunderforest\.com/);
+  if (matchesTilehosting || matchesMaptiler) {
+    const accessToken = style.getAccessToken("openmaptiles", mapStyle, {allowFallback: true})
+    if (accessToken) {
+      return url.replace('{key}', accessToken)
+    }
+  }
+  else if (matchesThunderforest) {
+    const accessToken = style.getAccessToken("thunderforest", mapStyle, {allowFallback: true})
+    if (accessToken) {
+      return url.replace('{key}', accessToken)
+    }
+  }
+  else {
+    return url;
+  }
+}
+
+function updateRootSpec(spec: any, fieldName: string, newValues: any) {
+  return {
+    ...spec,
+    $root: {
+      ...spec.$root,
+      [fieldName]: {
+        ...spec.$root[fieldName],
+        values: newValues
+      }
+    }
+  }
+}
+
+type OnStyleChangedOpts = {
+  save?: boolean
+  addRevision?: boolean
+  initialLoad?: boolean
+}
+
+type MappedErrors = {
+  message: string
+  parsed?: {
+    type: string
+    data: {
+      index: number
+      key: string
+      message: string
+    }
+  }
+}
+
+type AppState = {
+  errors: MappedErrors[],
+  infos: string[],
+  mapStyle: StyleSpecification & {id: string},
+  dirtyMapStyle?: StyleSpecification,
+  selectedLayerIndex: number,
+  selectedLayerOriginalId?: string,
+  sources: {[key: string]: SourceSpecification},
+  vectorLayers: {},
+  spec: any,
+  mapView: {
+    zoom: number,
+    center: {
+      lng: number,
+      lat: number,
+    },
+  },
+  maplibreGlDebugOptions: Partial<MapOptions> & {
+    showTileBoundaries: boolean,
+    showCollisionBoxes: boolean,
+    showOverdrawInspector: boolean,
+  },
+  openlayersDebugOptions: {
+    debugToolbox: boolean,
+  },
+  mapState: MapState
+  isOpen: {
+    settings: boolean
+    sources: boolean
+    open: boolean
+    shortcuts: boolean
+    export: boolean
+    survey: boolean
+    debug: boolean
+  }
+}
+
+export default class App extends React.Component<any, AppState> {
+  revisionStore: RevisionStore;
+  styleStore: StyleStore | ApiStyleStore;
+  layerWatcher: LayerWatcher;
+  shortcutEl: ModalShortcuts | null = null;
+
+  constructor(props: any) {
+    super(props)
+    autoBind(this);
+
+    this.revisionStore = new RevisionStore()
+    const params = new URLSearchParams(window.location.search.substring(1))
+    let port = params.get("localport")
+    if (port == null && (window.location.port !== "80" && window.location.port !== "443")) {
+      port = window.location.port
+    }
+    this.styleStore = new ApiStyleStore({
+      onLocalStyleChange: mapStyle => this.onStyleChanged(mapStyle, {save: false}),
+      port: port,
+      host: params.get("localhost")
+    })
+
+
+    const shortcuts = [
+      {
+        key: "?",
+        handler: () => {
+          this.toggleModal("shortcuts");
+        }
+      },
+      {
+        key: "o",
+        handler: () => {
+          this.toggleModal("open");
+        }
+      },
+      {
+        key: "e",
+        handler: () => {
+          this.toggleModal("export");
+        }
+      },
+      {
+        key: "d",
+        handler: () => {
+          this.toggleModal("sources");
+        }
+      },
+      {
+        key: "s",
+        handler: () => {
+          this.toggleModal("settings");
+        }
+      },
+      {
+        key: "i",
+        handler: () => {
+          this.setMapState(
+            this.state.mapState === "map" ? "inspect" : "map"
+          );
+        }
+      },
+      {
+        key: "m",
+        handler: () => {
+          (document.querySelector(".maplibregl-canvas") as HTMLCanvasElement).focus();
+        }
+      },
+      {
+        key: "!",
+        handler: () => {
+          this.toggleModal("debug");
+        }
+      },
+    ]
+
+    document.body.addEventListener("keyup", (e) => {
+      if(e.key === "Escape") {
+        (e.target as HTMLElement).blur();
+        document.body.focus();
+      }
+      else if(this.state.isOpen.shortcuts || document.activeElement === document.body) {
+        const shortcut = shortcuts.find((shortcut) => {
+          return (shortcut.key === e.key)
+        })
+
+        if(shortcut) {
+          this.setModal("shortcuts", false);
+          shortcut.handler();
+        }
+      }
+    })
+
+    const styleUrl = initialStyleUrl()
+    if(styleUrl && window.confirm("Load style from URL: " + styleUrl + " and discard current changes?")) {
+      this.styleStore = new StyleStore()
+      loadStyleUrl(styleUrl, mapStyle => this.onStyleChanged(mapStyle))
+      removeStyleQuerystring()
+    } else {
+      if(styleUrl) {
+        removeStyleQuerystring()
+      }
+      this.styleStore.init(err => {
+        if(err) {
+          console.log('Falling back to local storage for storing styles')
+          this.styleStore = new StyleStore()
+        }
+        this.styleStore.latestStyle(mapStyle => this.onStyleChanged(mapStyle, {initialLoad: true}))
+
+        if(Debug.enabled()) {
+          Debug.set("maputnik", "styleStore", this.styleStore);
+          Debug.set("maputnik", "revisionStore", this.revisionStore);
+        }
+      })
+    }
+
+    if(Debug.enabled()) {
+      Debug.set("maputnik", "revisionStore", this.revisionStore);
+      Debug.set("maputnik", "styleStore", this.styleStore);
+    }
+
+    this.state = {
+      errors: [],
+      infos: [],
+      mapStyle: style.emptyStyle,
+      selectedLayerIndex: 0,
+      sources: {},
+      vectorLayers: {},
+      mapState: "map",
+      spec: latest,
+      mapView: {
+        zoom: 0,
+        center: {
+          lng: 0,
+          lat: 0,
+        },
+      },
+      isOpen: {
+        settings: false,
+        sources: false,
+        open: false,
+        shortcuts: false,
+        export: false,
+        // TODO: Disabled for now, this should be opened on the Nth visit to the editor
+        survey: false,
+        debug: false,
+      },
+      maplibreGlDebugOptions: {
+        showTileBoundaries: false,
+        showCollisionBoxes: false,
+        showOverdrawInspector: false,
+      },
+      openlayersDebugOptions: {
+        debugToolbox: false,
+      },
+    }
+
+    this.layerWatcher = new LayerWatcher({
+      onVectorLayersChange: v => this.setState({ vectorLayers: v })
+    })
+  }
+
+  handleKeyPress = (e: KeyboardEvent) => {
+    if(navigator.platform.toUpperCase().indexOf('MAC') >= 0) {
+      if(e.metaKey && e.shiftKey && e.keyCode === 90) {
+        e.preventDefault();
+        this.onRedo();
+      }
+      else if(e.metaKey && e.keyCode === 90) {
+        e.preventDefault();
+        this.onUndo();
+      }
+    }
+    else {
+      if(e.ctrlKey && e.keyCode === 90) {
+        e.preventDefault();
+        this.onUndo();
+      }
+      else if(e.ctrlKey && e.keyCode === 89) {
+        e.preventDefault();
+        this.onRedo();
+      }
+    }
+  }
+
+  componentDidMount() {
+    window.addEventListener("keydown", this.handleKeyPress);
+  }
+
+  componentWillUnmount() {
+    window.removeEventListener("keydown", this.handleKeyPress);
+  }
+
+  saveStyle(snapshotStyle: StyleSpecification & {id: string}) {
+    this.styleStore.save(snapshotStyle)
+  }
+
+  updateFonts(urlTemplate: string) {
+    const metadata: {[key: string]: string} = this.state.mapStyle.metadata || {} as any
+    const accessToken = metadata['maputnik:openmaptiles_access_token'] || tokens.openmaptiles
+
+    const glyphUrl = (typeof urlTemplate === 'string')? urlTemplate.replace('{key}', accessToken): urlTemplate;
+    downloadGlyphsMetadata(glyphUrl, fonts => {
+      this.setState({ spec: updateRootSpec(this.state.spec, 'glyphs', fonts)})
+    })
+  }
+
+  updateIcons(baseUrl: string) {
+    downloadSpriteMetadata(baseUrl, icons => {
+      this.setState({ spec: updateRootSpec(this.state.spec, 'sprite', icons)})
+    })
+  }
+
+  onChangeMetadataProperty = (property: string, value: any) => {
+    // If we're changing renderer reset the map state.
+    if (
+      property === 'maputnik:renderer' &&
+      value !== get(this.state.mapStyle, ['metadata', 'maputnik:renderer'], 'mlgljs')
+    ) {
+      this.setState({
+        mapState: 'map'
+      });
+    }
+
+    const changedStyle = {
+      ...this.state.mapStyle,
+      metadata: {
+        ...(this.state.mapStyle as any).metadata,
+        [property]: value
+      }
+    }
+    this.onStyleChanged(changedStyle)
+  }
+
+  onStyleChanged = (newStyle: StyleSpecification & {id: string}, opts: OnStyleChangedOpts={}) => {
+    opts = {
+      save: true,
+      addRevision: true,
+      initialLoad: false,
+      ...opts,
+    };
+
+    if (opts.initialLoad) {
+      this.getInitialStateFromUrl(newStyle);
+    }
+
+    const errors: ValidationError[] = validateStyleMin(newStyle) || [];
+
+    // The validate function doesn't give us errors for duplicate error with
+    // empty string for layer.id, manually deal with that here.
+    const layerErrors: (Error | ValidationError)[] = [];
+    if (newStyle && newStyle.layers) {
+      const foundLayers = new global.Map();
+      newStyle.layers.forEach((layer, index) => {
+        if (layer.id === "" && foundLayers.has(layer.id)) {
+          const error = new Error(
+            `layers[${index}]: duplicate layer id [empty_string], previously used`
+          );
+          layerErrors.push(error);
+        }
+        foundLayers.set(layer.id, true);
+      });
+    }
+
+    const mappedErrors = layerErrors.concat(errors).map(error => {
+      // Special case: Duplicate layer id
+      const dupMatch = error.message.match(/layers\[(\d+)\]: (duplicate layer id "?(.*)"?, previously used)/);
+      if (dupMatch) {
+        const [, index, message] = dupMatch;
+        return {
+          message: error.message,
+          parsed: {
+            type: "layer",
+            data: {
+              index: parseInt(index, 10),
+              key: "id",
+              message,
+            }
+          }
+        }
+      }
+
+      // Special case: Invalid source
+      const invalidSourceMatch = error.message.match(/layers\[(\d+)\]: (source "(?:.*)" not found)/);
+      if (invalidSourceMatch) {
+        const [, index, message] = invalidSourceMatch;
+        return {
+          message: error.message,
+          parsed: {
+            type: "layer",
+            data: {
+              index: parseInt(index, 10),
+              key: "source",
+              message,
+            }
+          }
+        }
+      }
+
+      const layerMatch = error.message.match(/layers\[(\d+)\]\.(?:(\S+)\.)?(\S+): (.*)/);
+      if (layerMatch) {
+        const [, index, group, property, message] = layerMatch;
+        const key = (group && property) ? [group, property].join(".") : property;
+        return {
+          message: error.message,
+          parsed: {
+            type: "layer",
+            data: {
+              index: parseInt(index, 10),
+              key,
+              message
+            }
+          }
+        }
+      }
+      else {
+        return {
+          message: error.message,
+        };
+      }
+    });
+
+    let dirtyMapStyle: StyleSpecification | undefined = undefined;
+    if (errors.length > 0) {
+      dirtyMapStyle = cloneDeep(newStyle);
+
+      errors.forEach(error => {
+        const {message} = error;
+        if (message) {
+          try {
+            const objPath = message.split(":")[0];
+            // Errors can be deply nested for example 'layers[0].filter[1][1][0]' we only care upto the property 'layers[0].filter'
+            const unsetPath = objPath.match(/^\S+?\[\d+\]\.[^[]+/)![0];
+            unset(dirtyMapStyle, unsetPath);
+          }
+          catch (err) {
+            console.warn(err);
+          }
+        }
+      });
+    }
+
+    if(newStyle.glyphs !== this.state.mapStyle.glyphs) {
+      this.updateFonts(newStyle.glyphs as string)
+    }
+    if(newStyle.sprite !== this.state.mapStyle.sprite) {
+      this.updateIcons(newStyle.sprite as string)
+    }
+
+    if (opts.addRevision) {
+      this.revisionStore.addRevision(newStyle);
+    }
+    if (opts.save) {
+      this.saveStyle(newStyle as StyleSpecification & {id: string});
+    }
+
+    this.setState({
+      mapStyle: newStyle,
+      dirtyMapStyle: dirtyMapStyle,
+      errors: mappedErrors,
+    }, () => {
+      this.fetchSources();
+      this.setStateInUrl();
+    })
+
+  }
+
+  onUndo = () => {
+    const activeStyle = this.revisionStore.undo()
+
+    const messages = undoMessages(this.state.mapStyle, activeStyle)
+    this.onStyleChanged(activeStyle, {addRevision: false});
+    this.setState({
+      infos: messages,
+    })
+  }
+
+  onRedo = () => {
+    const activeStyle = this.revisionStore.redo()
+    const messages = redoMessages(this.state.mapStyle, activeStyle)
+    this.onStyleChanged(activeStyle, {addRevision: false});
+    this.setState({
+      infos: messages,
+    })
+  }
+
+  onMoveLayer = (move: SortEnd) => {
+    let { oldIndex, newIndex } = move;
+    let layers = this.state.mapStyle.layers;
+    oldIndex = clamp(oldIndex, 0, layers.length-1);
+    newIndex = clamp(newIndex, 0, layers.length-1);
+    if(oldIndex === newIndex) return;
+
+    if (oldIndex === this.state.selectedLayerIndex) {
+      this.setState({
+        selectedLayerIndex: newIndex
+      });
+    }
+
+    layers = layers.slice(0);
+    arrayMoveMutable(layers, oldIndex, newIndex);
+    this.onLayersChange(layers);
+  }
+
+  onLayersChange = (changedLayers: LayerSpecification[]) => {
+    const changedStyle = {
+      ...this.state.mapStyle,
+      layers: changedLayers
+    }
+    this.onStyleChanged(changedStyle)
+  }
+
+  onLayerDestroy = (index: number) => {
+    const layers = this.state.mapStyle.layers;
+    const remainingLayers = layers.slice(0);
+    remainingLayers.splice(index, 1);
+    this.onLayersChange(remainingLayers);
+  }
+
+  onLayerCopy = (index: number) => {
+    const layers = this.state.mapStyle.layers;
+    const changedLayers = layers.slice(0)
+
+    const clonedLayer = cloneDeep(changedLayers[index])
+    clonedLayer.id = clonedLayer.id + "-copy"
+    changedLayers.splice(index, 0, clonedLayer)
+    this.onLayersChange(changedLayers)
+  }
+
+  onLayerVisibilityToggle = (index: number) => {
+    const layers = this.state.mapStyle.layers;
+    const changedLayers = layers.slice(0)
+
+    const layer = { ...changedLayers[index] }
+    const changedLayout = 'layout' in layer ? {...layer.layout} : {}
+    changedLayout.visibility = changedLayout.visibility === 'none' ? 'visible' : 'none'
+
+    layer.layout = changedLayout
+    changedLayers[index] = layer
+    this.onLayersChange(changedLayers)
+  }
+
+
+  onLayerIdChange = (index: number, _oldId: string, newId: string) => {
+    const changedLayers = this.state.mapStyle.layers.slice(0)
+    changedLayers[index] = {
+      ...changedLayers[index],
+      id: newId
+    }
+
+    this.onLayersChange(changedLayers)
+  }
+
+  onLayerChanged = (index: number, layer: LayerSpecification) => {
+    const changedLayers = this.state.mapStyle.layers.slice(0)
+    changedLayers[index] = layer
+
+    this.onLayersChange(changedLayers)
+  }
+
+  setMapState = (newState: MapState) => {
+    this.setState({
+      mapState: newState
+    }, this.setStateInUrl);
+  }
+
+  setDefaultValues = (styleObj: StyleSpecification & {id: string}) => {
+    const metadata: {[key: string]: string} = styleObj.metadata || {} as any
+    if(metadata['maputnik:renderer'] === undefined) {
+      const changedStyle = {
+        ...styleObj,
+        metadata: {
+          ...styleObj.metadata as any,
+          'maputnik:renderer': 'mlgljs'
+        }
+      }
+      return changedStyle
+    } else {
+      return styleObj
+    }
+  }
+
+  openStyle = (styleObj: StyleSpecification & {id: string}) => {
+    styleObj = this.setDefaultValues(styleObj)
+    this.onStyleChanged(styleObj)
+  }
+
+  fetchSources() {
+    const sourceList: {[key: string]: any} = {};
+
+    for(const [key, val] of Object.entries(this.state.mapStyle.sources)) {
+      if(
+        !Object.prototype.hasOwnProperty.call(this.state.sources, key) &&
+        val.type === "vector" &&
+        Object.prototype.hasOwnProperty.call(val, "url")
+      ) {
+        sourceList[key] = {
+          type: val.type,
+          layers: []
+        };
+
+        let url = val.url;
+
+        try {
+          url = setFetchAccessToken(url!, this.state.mapStyle)
+        } catch(err) {
+          console.warn("Failed to setFetchAccessToken: ", err);
+        }
+
+        fetch(url!, {
+          mode: 'cors',
+        })
+          .then(response => response.json())
+          .then(json => {
+
+            if(!Object.prototype.hasOwnProperty.call(json, "vector_layers")) {
+              return;
+            }
+
+            // Create new objects before setState
+            const sources = Object.assign({}, {
+              [key]: this.state.sources[key],
+            });
+
+            for(const layer of json.vector_layers) {
+              (sources[key] as any).layers.push(layer.id)
+            }
+
+            console.debug("Updating source: "+key);
+            this.setState({
+              sources: sources
+            });
+          })
+          .catch(err => {
+            console.error("Failed to process sources for '%s'", url, err);
+          });
+      }
+      else {
+        sourceList[key] = this.state.sources[key] || this.state.mapStyle.sources[key];
+      }
+    }
+
+    if(!isEqual(this.state.sources, sourceList)) {
+      console.debug("Setting sources");
+      this.setState({
+        sources: sourceList
+      })
+    }
+  }
+
+  _getRenderer () {
+    const metadata: {[key:string]: string} = this.state.mapStyle.metadata || {} as any;
+    return metadata['maputnik:renderer'] || 'mlgljs';
+  }
+
+  onMapChange = (mapView: {
+    zoom: number,
+    center: {
+      lng: number,
+      lat: number,
+    },
+  }) => {
+    this.setState({
+      mapView,
+    });
+  }
+
+  mapRenderer() {
+    const {mapStyle, dirtyMapStyle} = this.state;
+
+    const mapProps = {
+      mapStyle: (dirtyMapStyle || mapStyle),
+      replaceAccessTokens: (mapStyle: StyleSpecification) => {
+        return style.replaceAccessTokens(mapStyle, {
+          allowFallback: true
+        });
+      },
+      onDataChange: (e: {map: Map}) => {
+        this.layerWatcher.analyzeMap(e.map)
+        this.fetchSources();
+      },
+    }
+
+    const renderer = this._getRenderer();
+
+    let mapElement;
+
+    // Check if OL code has been loaded?
+    if(renderer === 'ol') {
+      mapElement = <MapOpenLayers
+        {...mapProps}
+        onChange={this.onMapChange}
+        debugToolbox={this.state.openlayersDebugOptions.debugToolbox}
+        onLayerSelect={this.onLayerSelect}
+      />
+    } else {
+      mapElement = <MapMaplibreGl {...mapProps}
+        onChange={this.onMapChange}
+        options={this.state.maplibreGlDebugOptions}
+        inspectModeEnabled={this.state.mapState === "inspect"}
+        highlightedLayer={this.state.mapStyle.layers[this.state.selectedLayerIndex]}
+        onLayerSelect={this.onLayerSelect} />
+    }
+
+    let filterName;
+    if(this.state.mapState.match(/^filter-/)) {
+      filterName = this.state.mapState.replace(/^filter-/, "");
+    }
+    const elementStyle: {filter?: string} = {};
+    if (filterName) {
+      elementStyle.filter = `url('#${filterName}')`;
+    }
+
+    return <div style={elementStyle} className="maputnik-map__container" data-wd-key="maplibre:container">
+      {mapElement}
+    </div>
+  }
+
+  setStateInUrl = () => {
+    const {mapState, mapStyle, isOpen} = this.state;
+    const {selectedLayerIndex} = this.state;
+    const url = new URL(location.href);
+    const hashVal = hash(JSON.stringify(mapStyle));
+    url.searchParams.set("layer", `${hashVal}~${selectedLayerIndex}`);
+
+    const openModals = Object.entries(isOpen)
+      .map(([key, val]) => (val === true ? key : null))
+      .filter(val => val !== null);
+
+    if (openModals.length > 0) {
+      url.searchParams.set("modal", openModals.join(","));
+    }
+    else {
+      url.searchParams.delete("modal");
+    }
+
+    if (mapState === "map") {
+      url.searchParams.delete("view");
+    }
+    else if (mapState === "inspect") {
+      url.searchParams.set("view", "inspect");
+    }
+
+    history.replaceState({selectedLayerIndex}, "Maputnik", url.href);
+  }
+
+  getInitialStateFromUrl = (mapStyle: StyleSpecification) => {
+    const url = new URL(location.href);
+    const modalParam = url.searchParams.get("modal");
+    if (modalParam && modalParam !== "") {
+      const modals = modalParam.split(",");
+      const modalObj: {[key: string]: boolean} = {};
+      modals.forEach(modalName => {
+        modalObj[modalName] = true;
+      });
+
+      this.setState({
+        isOpen: {
+          ...this.state.isOpen,
+          ...modalObj,
+        }
+      });
+    }
+
+    const view = url.searchParams.get("view");
+    if (view && view !== "") {
+      this.setMapState(view as MapState);
+    }
+
+    const path = url.searchParams.get("layer");
+    if (path) {
+      try {
+        const parts = path.split("~");
+        const [hashVal, selectedLayerIndex] = [
+          parts[0],
+          parseInt(parts[1], 10),
+        ];
+
+        let valid = true;
+        if (hashVal !== "-") {
+          const currentHashVal = hash(JSON.stringify(mapStyle));
+          if (currentHashVal !== parseInt(hashVal, 10)) {
+            valid = false;
+          }
+        }
+        if (valid) {
+          this.setState({
+            selectedLayerIndex,
+            selectedLayerOriginalId: mapStyle.layers[selectedLayerIndex].id,
+          });
+        }
+      }
+      catch (err) {
+        console.warn(err);
+      }
+    }
+  }
+
+  onLayerSelect = (index: number) => {
+    this.setState({
+      selectedLayerIndex: index,
+      selectedLayerOriginalId: this.state.mapStyle.layers[index].id,
+    }, this.setStateInUrl);
+  }
+
+  setModal(modalName: keyof AppState["isOpen"], value: boolean) {
+    if(modalName === 'survey' && value === false) {
+      localStorage.setItem('survey', '');
+    }
+
+    this.setState({
+      isOpen: {
+        ...this.state.isOpen,
+        [modalName]: value
+      }
+    }, this.setStateInUrl)
+  }
+
+  toggleModal(modalName: keyof AppState["isOpen"]) {
+    this.setModal(modalName, !this.state.isOpen[modalName]);
+  }
+
+  onChangeOpenlayersDebug = (key: keyof AppState["openlayersDebugOptions"], value: boolean) => {
+    this.setState({
+      openlayersDebugOptions: {
+        ...this.state.openlayersDebugOptions,
+        [key]: value,
+      }
+    });
+  }
+
+  onChangeMaplibreGlDebug = (key: keyof AppState["maplibreGlDebugOptions"], value: any) => {
+    this.setState({
+      maplibreGlDebugOptions: {
+        ...this.state.maplibreGlDebugOptions,
+        [key]: value,
+      }
+    });
+  }
+
+  render() {
+    const layers = this.state.mapStyle.layers || []
+    const selectedLayer = layers.length > 0 ? layers[this.state.selectedLayerIndex] : undefined
+
+    const toolbar = <AppToolbar
+      renderer={this._getRenderer()}
+      mapState={this.state.mapState}
+      mapStyle={this.state.mapStyle}
+      inspectModeEnabled={this.state.mapState === "inspect"}
+      sources={this.state.sources}
+      onStyleChanged={this.onStyleChanged}
+      onStyleOpen={this.onStyleChanged}
+      onSetMapState={this.setMapState}
+      onToggleModal={this.toggleModal.bind(this)}
+    />
+
+    const layerList = <LayerList
+      onMoveLayer={this.onMoveLayer}
+      onLayerDestroy={this.onLayerDestroy}
+      onLayerCopy={this.onLayerCopy}
+      onLayerVisibilityToggle={this.onLayerVisibilityToggle}
+      onLayersChange={this.onLayersChange}
+      onLayerSelect={this.onLayerSelect}
+      selectedLayerIndex={this.state.selectedLayerIndex}
+      layers={layers}
+      sources={this.state.sources}
+      errors={this.state.errors}
+    />
+
+    const layerEditor = selectedLayer ? <LayerEditor
+      key={this.state.selectedLayerOriginalId}
+      layer={selectedLayer}
+      layerIndex={this.state.selectedLayerIndex}
+      isFirstLayer={this.state.selectedLayerIndex < 1}
+      isLastLayer={this.state.selectedLayerIndex === this.state.mapStyle.layers.length-1}
+      sources={this.state.sources}
+      vectorLayers={this.state.vectorLayers}
+      spec={this.state.spec}
+      onMoveLayer={this.onMoveLayer}
+      onLayerChanged={this.onLayerChanged}
+      onLayerDestroy={this.onLayerDestroy}
+      onLayerCopy={this.onLayerCopy}
+      onLayerVisibilityToggle={this.onLayerVisibilityToggle}
+      onLayerIdChange={this.onLayerIdChange}
+      errors={this.state.errors}
+    /> : undefined
+
+    const bottomPanel = (this.state.errors.length + this.state.infos.length) > 0 ? <MessagePanel
+      currentLayer={selectedLayer}
+      selectedLayerIndex={this.state.selectedLayerIndex}
+      onLayerSelect={this.onLayerSelect}
+      mapStyle={this.state.mapStyle}
+      errors={this.state.errors}
+      infos={this.state.infos}
+    /> : undefined
+
+
+    const modals = <div>
+      <ModalDebug
+        renderer={this._getRenderer()}
+        maplibreGlDebugOptions={this.state.maplibreGlDebugOptions}
+        openlayersDebugOptions={this.state.openlayersDebugOptions}
+        onChangeMaplibreGlDebug={this.onChangeMaplibreGlDebug}
+        onChangeOpenlayersDebug={this.onChangeOpenlayersDebug}
+        isOpen={this.state.isOpen.debug}
+        onOpenToggle={this.toggleModal.bind(this, 'debug')}
+        mapView={this.state.mapView}
+      />
+      <ModalShortcuts
+        ref={(el) => this.shortcutEl = el}
+        isOpen={this.state.isOpen.shortcuts}
+        onOpenToggle={this.toggleModal.bind(this, 'shortcuts')}
+      />
+      <ModalSettings
+        mapStyle={this.state.mapStyle}
+        onStyleChanged={this.onStyleChanged}
+        onChangeMetadataProperty={this.onChangeMetadataProperty}
+        isOpen={this.state.isOpen.settings}
+        onOpenToggle={this.toggleModal.bind(this, 'settings')}
+      />
+      <ModalExport
+        mapStyle={this.state.mapStyle}
+        onStyleChanged={this.onStyleChanged}
+        isOpen={this.state.isOpen.export}
+        onOpenToggle={this.toggleModal.bind(this, 'export')}
+      />
+      <ModalOpen
+        isOpen={this.state.isOpen.open}
+        onStyleOpen={this.openStyle}
+        onOpenToggle={this.toggleModal.bind(this, 'open')}
+      />
+      <ModalSources
+        mapStyle={this.state.mapStyle}
+        onStyleChanged={this.onStyleChanged}
+        isOpen={this.state.isOpen.sources}
+        onOpenToggle={this.toggleModal.bind(this, 'sources')}
+      />
+      <ModalSurvey
+        isOpen={this.state.isOpen.survey}
+        onOpenToggle={this.toggleModal.bind(this, 'survey')}
+      />
+    </div>
+
+    return <AppLayout
+      toolbar={toolbar}
+      layerList={layerList}
+      layerEditor={layerEditor}
+      map={this.mapRenderer()}
+      bottom={bottomPanel}
+      modals={modals}
+    />
+  }
+}

src/components/AppLayout.tsx

@@ -2,16 +2,16 @@ import React from 'react'
 import PropTypes from 'prop-types'
 import ScrollContainer from './ScrollContainer'
 
-class AppLayout extends React.Component {
-  static propTypes = {
-    toolbar: PropTypes.element.isRequired,
-    layerList: PropTypes.element.isRequired,
-    layerEditor: PropTypes.element,
-    map: PropTypes.element.isRequired,
-    bottom: PropTypes.element,
-    modals: PropTypes.node,
-  }
+type AppLayoutProps = {
+  toolbar: React.ReactElement
+  layerList: React.ReactElement
+  layerEditor?: React.ReactElement
+  map: React.ReactElement
+  bottom?: React.ReactElement
+  modals?: React.ReactNode
+};
 
+class AppLayout extends React.Component<AppLayoutProps> {
   static childContextTypes = {
     reactIconBase: PropTypes.object
   }
@@ -26,9 +26,7 @@ class AppLayout extends React.Component {
     return <div className="maputnik-layout">
       {this.props.toolbar}
       <div className="maputnik-layout-list">
-        <ScrollContainer>
-          {this.props.layerList}
-        </ScrollContainer>
+        {this.props.layerList}
       </div>
       <div className="maputnik-layout-drawer">
         <ScrollContainer>
@@ -37,8 +35,8 @@ class AppLayout extends React.Component {
       </div>
       {this.props.map}
       {this.props.bottom && <div className="maputnik-layout-bottom">
-          {this.props.bottom}
-        </div>
+        {this.props.bottom}
+      </div>
       }
       {this.props.modals}
     </div>

src/components/AppMessagePanel.tsx

@@ -0,0 +1,61 @@
+import React from 'react'
+import {formatLayerId} from '../libs/format';
+import {LayerSpecification, StyleSpecification} from 'maplibre-gl';
+
+type AppMessagePanelProps = {
+  errors?: unknown[]
+  infos?: unknown[]
+  mapStyle?: StyleSpecification
+  onLayerSelect?(...args: unknown[]): unknown
+  currentLayer?: LayerSpecification
+  selectedLayerIndex?: number
+};
+
+export default class AppMessagePanel extends React.Component<AppMessagePanelProps> {
+  static defaultProps = {
+    onLayerSelect: () => {},
+  }
+
+  render() {
+    const {selectedLayerIndex} = this.props;
+    const errors = this.props.errors?.map((error: any, idx) => {
+      let content;
+      if (error.parsed && error.parsed.type === "layer") {
+        const {parsed} = error;
+        const layerId = this.props.mapStyle?.layers[parsed.data.index].id;
+        content = (
+          <>
+            Layer <span>{formatLayerId(layerId)}</span>: {parsed.data.message}
+            {selectedLayerIndex !== parsed.data.index &&
+              <>
+                &nbsp;&mdash;&nbsp;
+                <button
+                  className="maputnik-message-panel__switch-button"
+                  onClick={() => this.props.onLayerSelect!(parsed.data.index)}
+                >
+                  switch to layer
+                </button>
+              </>
+            }
+          </>
+        );
+      }
+      else {
+        content = error.message;
+      }
+      return <p key={"error-"+idx} className="maputnik-message-panel-error">
+        {content}
+      </p>
+    })
+
+    const infos = this.props.infos?.map((m, i) => {
+      return <p key={"info-"+i}>{m}</p>
+    })
+
+    return <div className="maputnik-message-panel">
+      {errors}
+      {infos}
+    </div>
+  }
+}
+

src/components/AppToolbar.tsx

@@ -0,0 +1,261 @@
+import React from 'react'
+import classnames from 'classnames'
+import {detect} from 'detect-browser';
+
+import {MdFileDownload, MdOpenInBrowser, MdSettings, MdLayers, MdHelpOutline, MdFindInPage} from 'react-icons/md'
+import pkgJson from '../../package.json'
+//@ts-ignore
+import maputnikLogo from 'maputnik-design/logos/logo-color.svg?inline'
+
+// This is required because of <https://stackoverflow.com/a/49846426>, there isn't another way to detect support that I'm aware of.
+const browser = detect();
+const colorAccessibilityFiltersEnabled = ['chrome', 'firefox'].indexOf(browser!.name) > -1;
+
+
+type IconTextProps = {
+  children?: React.ReactNode
+};
+
+
+class IconText extends React.Component<IconTextProps> {
+  render() {
+    return <span className="maputnik-icon-text">{this.props.children}</span>
+  }
+}
+
+type ToolbarLinkProps = {
+  className?: string
+  children?: React.ReactNode
+  href?: string
+  onToggleModal?(...args: unknown[]): unknown
+};
+
+class ToolbarLink extends React.Component<ToolbarLinkProps> {
+  render() {
+    return <a
+      className={classnames('maputnik-toolbar-link', this.props.className)}
+      href={this.props.href}
+      rel="noopener noreferrer"
+      target="_blank"
+      data-wd-key="toolbar:link"
+    >
+      {this.props.children}
+    </a>
+  }
+}
+
+type ToolbarSelectProps = {
+  children?: React.ReactNode
+  wdKey?: string
+};
+
+class ToolbarSelect extends React.Component<ToolbarSelectProps> {
+  render() {
+    return <div
+      className='maputnik-toolbar-select'
+      data-wd-key={this.props.wdKey}
+    >
+      {this.props.children}
+    </div>
+  }
+}
+
+type ToolbarActionProps = {
+  children?: React.ReactNode
+  onClick?(...args: unknown[]): unknown
+  wdKey?: string
+};
+
+class ToolbarAction extends React.Component<ToolbarActionProps> {
+  render() {
+    return <button
+      className='maputnik-toolbar-action'
+      data-wd-key={this.props.wdKey}
+      onClick={this.props.onClick}
+    >
+      {this.props.children}
+    </button>
+  }
+}
+
+export type MapState = "map" | "inspect" | "filter-achromatopsia" | "filter-deuteranopia" | "filter-protanopia" | "filter-tritanopia";
+
+type AppToolbarProps = {
+  mapStyle: object
+  inspectModeEnabled: boolean
+  onStyleChanged(...args: unknown[]): unknown
+  // A new style has been uploaded
+  onStyleOpen(...args: unknown[]): unknown
+  // A dict of source id's and the available source layers
+  sources: object
+  children?: React.ReactNode
+  onToggleModal(...args: unknown[]): unknown
+  onSetMapState(mapState: MapState): unknown
+  mapState?: MapState
+  renderer?: string
+};
+
+export default class AppToolbar extends React.Component<AppToolbarProps> {
+  state = {
+    isOpen: {
+      settings: false,
+      sources: false,
+      open: false,
+      add: false,
+      export: false,
+    }
+  }
+
+  handleSelection(val: MapState) {
+    this.props.onSetMapState(val);
+  }
+
+  onSkip = (target: string) => {
+    if (target === "map") {
+      (document.querySelector(".maplibregl-canvas") as HTMLCanvasElement).focus();
+    }
+    else {
+      const el = document.querySelector("#skip-target-"+target) as HTMLButtonElement;
+      el.focus();
+    }
+  }
+
+  render() {
+    const views = [
+      {
+        id: "map",
+        group: "general",
+        title: "Map",
+      },
+      {
+        id: "inspect",
+        group: "general",
+        title: "Inspect",
+        disabled: this.props.renderer === 'ol',
+      },
+      {
+        id: "filter-deuteranopia",
+        group: "color-accessibility",
+        title: "Deuteranopia filter",
+        disabled: !colorAccessibilityFiltersEnabled,
+      },
+      {
+        id: "filter-protanopia",
+        group: "color-accessibility",
+        title: "Protanopia filter",
+        disabled: !colorAccessibilityFiltersEnabled,
+      },
+      {
+        id: "filter-tritanopia",
+        group: "color-accessibility",
+        title: "Tritanopia filter",
+        disabled: !colorAccessibilityFiltersEnabled,
+      },
+      {
+        id: "filter-achromatopsia",
+        group: "color-accessibility",
+        title: "Achromatopsia filter",
+        disabled: !colorAccessibilityFiltersEnabled,
+      },
+    ];
+
+    const currentView = views.find((view) => {
+      return view.id === this.props.mapState;
+    });
+
+    return <nav className='maputnik-toolbar'>
+      <div className="maputnik-toolbar__inner">
+        <div
+          className="maputnik-toolbar-logo-container"
+        >
+          {/* Keyboard accessible quick links */}
+          <button
+            data-wd-key="root:skip:layer-list"
+            className="maputnik-toolbar-skip"
+            onClick={_e => this.onSkip("layer-list")}
+          >
+            Layers list
+          </button>
+          <button
+            data-wd-key="root:skip:layer-editor"
+            className="maputnik-toolbar-skip"
+            onClick={_e => this.onSkip("layer-editor")}
+          >
+            Layer editor
+          </button>
+          <button
+            data-wd-key="root:skip:map-view"
+            className="maputnik-toolbar-skip"
+            onClick={_e => this.onSkip("map")}
+          >
+            Map view
+          </button>
+          <a
+            className="maputnik-toolbar-logo"
+            target="blank"
+            rel="noreferrer noopener"
+            href="https://github.com/maplibre/maputnik"
+          >
+            <img src={maputnikLogo} alt="Maputnik on GitHub" />
+            <h1>
+              <span className="maputnik-toolbar-name">{pkgJson.name}</span>
+              <span className="maputnik-toolbar-version">v{pkgJson.version}</span>
+            </h1>
+          </a>
+        </div>
+        <div className="maputnik-toolbar__actions" role="navigation" aria-label="Toolbar">
+          <ToolbarAction wdKey="nav:open" onClick={this.props.onToggleModal.bind(this, 'open')}>
+            <MdOpenInBrowser />
+            <IconText>Open</IconText>
+          </ToolbarAction>
+          <ToolbarAction wdKey="nav:export" onClick={this.props.onToggleModal.bind(this, 'export')}>
+            <MdFileDownload />
+            <IconText>Export</IconText>
+          </ToolbarAction>
+          <ToolbarAction wdKey="nav:sources" onClick={this.props.onToggleModal.bind(this, 'sources')}>
+            <MdLayers />
+            <IconText>Data Sources</IconText>
+          </ToolbarAction>
+          <ToolbarAction wdKey="nav:settings" onClick={this.props.onToggleModal.bind(this, 'settings')}>
+            <MdSettings />
+            <IconText>Style Settings</IconText>
+          </ToolbarAction>
+
+          <ToolbarSelect wdKey="nav:inspect">
+            <MdFindInPage />
+            <label>View
+              <select
+                className="maputnik-select"
+                data-wd-key="maputnik-select"
+                onChange={(e) => this.handleSelection(e.target.value as MapState)}
+                value={currentView?.id}
+              >
+                {views.filter(v => v.group === "general").map((item) => {
+                  return (
+                    <option key={item.id} value={item.id} disabled={item.disabled} data-wd-key={item.id}>
+                      {item.title}
+                    </option>
+                  );
+                })}
+                <optgroup label="Color accessibility">
+                  {views.filter(v => v.group === "color-accessibility").map((item) => {
+                    return (
+                      <option key={item.id} value={item.id} disabled={item.disabled}>
+                        {item.title}
+                      </option>
+                    );
+                  })}
+                </optgroup>
+              </select>
+            </label>
+          </ToolbarSelect>
+
+          <ToolbarLink href={"https://github.com/maplibre/maputnik/wiki"}>
+            <MdHelpOutline />
+            <IconText>Help</IconText>
+          </ToolbarLink>
+        </div>
+      </div>
+    </nav>
+  }
+}

src/components/Block.tsx

@@ -0,0 +1,103 @@
+import React, {SyntheticEvent} from 'react'
+import classnames from 'classnames'
+import FieldDocLabel from './FieldDocLabel'
+import Doc from './Doc'
+
+
+type BlockProps = {
+  "data-wd-key"?: string
+  label?: string
+  action?: React.ReactElement
+  style?: object
+  onChange?(...args: unknown[]): unknown
+  fieldSpec?: object
+  wideMode?: boolean
+  error?: {message: string}
+};
+
+type BlockState = {
+  showDoc: boolean
+};
+
+/** Wrap a component with a label */
+export default class Block extends React.Component<BlockProps, BlockState> {
+  _blockEl: HTMLDivElement | null = null;
+
+  constructor (props: BlockProps) {
+    super(props);
+    this.state = {
+      showDoc: false,
+    }
+  }
+
+  onChange(e: React.BaseSyntheticEvent<Event, HTMLInputElement, HTMLInputElement>) {
+    const value = e.target.value
+    if (this.props.onChange) {
+      return this.props.onChange(value === "" ? undefined : value)
+    }
+  }
+
+  onToggleDoc = (val: boolean) => {
+    this.setState({
+      showDoc: val
+    });
+  }
+
+  /**
+   * Some fields for example <InputColor/> bind click events inside the element
+   * to close the picker. This in turn propagates to the <label/> element
+   * causing the picker to reopen. This causes a scenario where the picker can
+   * never be closed once open.
+   */
+  onLabelClick = (event: SyntheticEvent<any, any>) => {
+    const el = event.nativeEvent.target;
+    const contains = this._blockEl?.contains(el);
+
+    if (event.nativeEvent.target.nodeName !== "INPUT" && !contains) {
+      event.stopPropagation();
+    }
+    event.preventDefault();
+  }
+
+  render() {
+    return <label style={this.props.style}
+      data-wd-key={this.props["data-wd-key"]}
+      className={classnames({
+        "maputnik-input-block": true,
+        "maputnik-input-block--wide": this.props.wideMode,
+        "maputnik-action-block": this.props.action
+      })}
+      onClick={this.onLabelClick}
+    >
+      {this.props.fieldSpec &&
+        <div className="maputnik-input-block-label">
+          <FieldDocLabel
+            label={this.props.label}
+            onToggleDoc={this.onToggleDoc}
+            fieldSpec={this.props.fieldSpec}
+          />
+        </div>
+      }
+      {!this.props.fieldSpec &&
+        <div className="maputnik-input-block-label">
+          {this.props.label}
+        </div>
+      }
+      <div className="maputnik-input-block-action">
+        {this.props.action}
+      </div>
+      <div className="maputnik-input-block-content" ref={el => this._blockEl = el}>
+        {this.props.children}
+      </div>
+      {this.props.fieldSpec &&
+        <div
+          className="maputnik-doc-inline"
+          style={{display: this.state.showDoc ? '' : 'none'}}
+        >
+          <Doc fieldSpec={this.props.fieldSpec} />
+        </div>
+      }
+    </label>
+  }
+}
+

src/components/Button.jsx

@@ -1,29 +0,0 @@
-import React from 'react'
-import PropTypes from 'prop-types'
-import classnames from 'classnames'
-
-class Button extends React.Component {
-  static propTypes = {
-    "data-wd-key": PropTypes.string,
-    "aria-label": PropTypes.string,
-    onClick: PropTypes.func,
-    style: PropTypes.object,
-    className: PropTypes.string,
-    children: PropTypes.node,
-    disabled: PropTypes.bool,
-  }
-
-  render() {
-    return <button
-      onClick={this.props.onClick}
-      disabled={this.props.disabled}
-      aria-label={this.props["aria-label"]}
-      className={classnames("maputnik-button", this.props.className)}
-      data-wd-key={this.props["data-wd-key"]}
-      style={this.props.style}>
-      {this.props.children}
-    </button>
-  }
-}
-
-export default Button

src/components/Collapse.tsx

@@ -0,0 +1,34 @@
+import React from 'react'
+import { Collapse as ReactCollapse } from 'react-collapse'
+import {reducedMotionEnabled} from '../libs/accessibility'
+
+
+type CollapseProps = {
+  isActive: boolean
+  children: React.ReactElement
+};
+
+
+export default class Collapse extends React.Component<CollapseProps> {
+  static defaultProps = {
+    isActive: true
+  }
+
+  render() {
+    if (reducedMotionEnabled()) {
+      return (
+        <div style={{display: this.props.isActive ? "block" : "none"}}>
+          {this.props.children}
+        </div>
+      )
+    }
+    else {
+      return (
+        <ReactCollapse isOpened={this.props.isActive}>
+          {this.props.children}
+        </ReactCollapse>
+      )
+    }
+  }
+}
+

src/components/Collapser.tsx

@@ -1,13 +1,12 @@
 import React from 'react'
-import PropTypes from 'prop-types'
 import {MdArrowDropDown, MdArrowDropUp} from 'react-icons/md'
 
-export default class Collapser extends React.Component {
-  static propTypes = {
-    isCollapsed: PropTypes.bool.isRequired,
-    style: PropTypes.object,
-  }
+type CollapserProps = {
+  isCollapsed: boolean
+  style?: object
+};
 
+export default class Collapser extends React.Component<CollapserProps> {
   render() {
     const iconStyle = {
       width: 20,

src/components/Doc.tsx

@@ -0,0 +1,91 @@
+import React from 'react'
+
+const headers = {
+  js: "JS",
+  android: "Android",
+  ios: "iOS",
+  macos: "macOS",
+};
+
+type DocProps = {
+  fieldSpec: {
+    doc?: string
+    values?: {
+      [key: string]: {
+        doc?: string
+      }
+    }
+    'sdk-support'?: {
+      [key: string]: typeof headers
+    }
+  }
+};
+
+export default class Doc extends React.Component<DocProps> {
+  render () {
+    const {fieldSpec} = this.props;
+
+    const {doc, values} = fieldSpec;
+    const sdkSupport = fieldSpec['sdk-support'];
+
+    const renderValues = (
+      !!values &&
+      // HACK: Currently we merge additional values into the style spec, so this is required
+      // See <https://github.com/maplibre/maputnik/blob/main/src/components/PropertyGroup.jsx#L16>
+      !Array.isArray(values)
+    );
+
+    return (
+      <>
+        {doc &&
+          <div className="SpecDoc">
+            <div className="SpecDoc__doc" data-wd-key='spec-field-doc'>{doc}</div>
+            {renderValues &&
+              <ul className="SpecDoc__values">
+                {Object.entries(values).map(([key, value]) => {
+                  return (
+                    <li key={key}>
+                      <code>{JSON.stringify(key)}</code>
+                      <div>{value.doc}</div>
+                    </li>
+                  );
+                })}
+              </ul>
+            }
+          </div>
+        }
+        {sdkSupport &&
+          <div className="SpecDoc__sdk-support">
+            <table className="SpecDoc__sdk-support__table">
+              <thead>
+                <tr>
+                  <th></th>
+                  {Object.values(headers).map(header => {
+                    return <th key={header}>{header}</th>;
+                  })}
+                </tr>
+              </thead>
+              <tbody>
+                {Object.entries(sdkSupport).map(([key, supportObj]) => {
+                  return (
+                    <tr key={key}>
+                      <td>{key}</td>
+                      {Object.keys(headers).map((k) => {
+                        if (Object.prototype.hasOwnProperty.call(supportObj, k)) {
+                          return <td key={k}>{supportObj[k as keyof typeof headers]}</td>;
+                        }
+                        else {
+                          return <td key={k}>no</td>;
+                        }
+                      })}
+                    </tr>
+                  );
+                })}
+              </tbody>
+            </table>
+          </div>
+        }
+      </>
+    );
+  }
+}

src/components/FieldArray.tsx

@@ -0,0 +1,19 @@
+import React from 'react'
+import InputArray, { FieldArrayProps as InputArrayProps } from './InputArray'
+import Fieldset from './Fieldset'
+
+type FieldArrayProps = InputArrayProps & {
+  name?: string
+  fieldSpec?: {
+    doc: string
+  }
+};
+
+export default class FieldArray extends React.Component<FieldArrayProps> {
+  render() {
+    return <Fieldset label={this.props.label} fieldSpec={this.props.fieldSpec}>
+      <InputArray {...this.props} />
+    </Fieldset>
+  }
+}
+

src/components/FieldAutocomplete.tsx

@@ -0,0 +1,18 @@
+import React from 'react'
+import Block from './Block'
+import InputAutocomplete, { InputAutocompleteProps } from './InputAutocomplete'
+
+
+type FieldAutocompleteProps = InputAutocompleteProps & {
+  label?: string;
+};
+
+
+export default class FieldAutocomplete extends React.Component<FieldAutocompleteProps> {
+  render() {
+    return <Block label={this.props.label}>
+      <InputAutocomplete {...this.props} />
+    </Block>
+  }
+}
+

src/components/FieldCheckbox.tsx

@@ -0,0 +1,18 @@
+import React from 'react'
+import Block from './Block'
+import InputCheckbox, {InputCheckboxProps} from './InputCheckbox'
+
+
+type FieldCheckboxProps = InputCheckboxProps & {
+  label?: string;
+};
+
+
+export default class FieldCheckbox extends React.Component<FieldCheckboxProps> {
+  render() {
+    return <Block label={this.props.label}>
+      <InputCheckbox {...this.props} />
+    </Block>
+  }
+}
+

src/components/FieldColor.tsx

@@ -0,0 +1,21 @@
+import React from 'react'
+import Block from './Block'
+import InputColor, {InputColorProps} from './InputColor'
+
+
+type FieldColorProps = InputColorProps & {
+  label?: string
+  fieldSpec?: {
+    doc: string
+  }
+};
+
+
+export default class FieldColor extends React.Component<FieldColorProps> {
+  render() {
+    return <Block label={this.props.label} fieldSpec={this.props.fieldSpec}>
+      <InputColor {...this.props} />
+    </Block>
+  }
+}
+

src/components/FieldComment.tsx

@@ -0,0 +1,33 @@
+import React from 'react'
+
+import Block from './Block'
+import InputString from './InputString'
+
+type FieldCommentProps = {
+  value?: string
+  onChange(value: string | undefined): unknown
+  error: {message: string}
+};
+
+export default class FieldComment extends React.Component<FieldCommentProps> {
+  render() {
+    const fieldSpec = {
+      doc: "Comments for the current layer. This is non-standard and not in the spec."
+    };
+
+    return <Block
+      label={"Comments"}
+      fieldSpec={fieldSpec}
+      data-wd-key="layer-comment"
+      error={this.props.error}
+    >
+      <InputString
+        multi={true}
+        value={this.props.value}
+        onChange={this.props.onChange}
+        default="Comment..."
+        data-wd-key="layer-comment.input"
+      />
+    </Block>
+  }
+}

src/components/FieldDocLabel.tsx

@@ -0,0 +1,65 @@
+import React from 'react'
+import {MdInfoOutline, MdHighlightOff} from 'react-icons/md'
+
+type FieldDocLabelProps = {
+  label: object | string | undefined
+  fieldSpec?: {
+    doc?: string
+  }
+  onToggleDoc?(...args: unknown[]): unknown
+};
+
+type FieldDocLabelState = {
+  open: boolean
+};
+
+export default class FieldDocLabel extends React.Component<FieldDocLabelProps, FieldDocLabelState> {
+  constructor (props: FieldDocLabelProps) {
+    super(props);
+    this.state = {
+      open: false,
+    }
+  }
+
+  onToggleDoc = (open: boolean) => {
+    this.setState({
+      open,
+    }, () => {
+      if (this.props.onToggleDoc) {
+        this.props.onToggleDoc(this.state.open);
+      }
+    });
+  }
+
+  render() {
+    const {label, fieldSpec} = this.props;
+    const {doc} = fieldSpec || {};
+
+    if (doc) {
+      return <label className="maputnik-doc-wrapper">
+        <div className="maputnik-doc-target">
+          {label}
+          {'\xa0'}
+          <button
+            aria-label={this.state.open ? "close property documentation" : "open property documentation"}
+            className={`maputnik-doc-button maputnik-doc-button--${this.state.open ? 'open' : 'closed'}`}
+            onClick={() => this.onToggleDoc(!this.state.open)}
+            data-wd-key={'field-doc-button-'+label}
+          >
+            {this.state.open ? <MdHighlightOff /> : <MdInfoOutline />}
+          </button>
+        </div>
+      </label>
+    }
+    else if (label) {
+      return <label className="maputnik-doc-wrapper">
+        <div className="maputnik-doc-target">
+          {label}
+        </div>
+      </label>
+    }
+    else {
+      <div />
+    }
+  }
+}

src/components/FieldDynamicArray.tsx

@@ -0,0 +1,16 @@
+import React from 'react'
+import InputDynamicArray, {FieldDynamicArrayProps as InputDynamicArrayProps} from './InputDynamicArray'
+import Fieldset from './Fieldset'
+
+type FieldDynamicArrayProps = InputDynamicArrayProps & {
+  name?: string
+};
+
+export default class FieldDynamicArray extends React.Component<FieldDynamicArrayProps> {
+  render() {
+    return <Fieldset label={this.props.label}>
+      <InputDynamicArray {...this.props} />
+    </Fieldset>
+  }
+}
+

src/components/FieldEnum.tsx

@@ -0,0 +1,20 @@
+import React from 'react'
+import InputEnum, {InputEnumProps} from './InputEnum'
+import Fieldset from './Fieldset';
+
+
+type FieldEnumProps = InputEnumProps & { 
+  label?: string;
+  fieldSpec?: {
+    doc: string
+  }
+};
+
+
+export default class FieldEnum extends React.Component<FieldEnumProps> {
+  render() {
+    return <Fieldset label={this.props.label} fieldSpec={this.props.fieldSpec}>
+      <InputEnum {...this.props} />
+    </Fieldset>
+  }
+}

src/components/FieldFunction.tsx

@@ -0,0 +1,407 @@
+import React from 'react'
+
+import SpecProperty from './_SpecProperty'
+import DataProperty, { Stop } from './_DataProperty'
+import ZoomProperty from './_ZoomProperty'
+import ExpressionProperty from './_ExpressionProperty'
+import {function as styleFunction} from '@maplibre/maplibre-gl-style-spec';
+import {findDefaultFromSpec} from '../libs/spec-helper';
+
+
+function isLiteralExpression(value: any) {
+  return (Array.isArray(value) && value.length === 2 && value[0] === "literal");
+}
+
+function isGetExpression(value: any) {
+  return (
+    Array.isArray(value) &&
+    value.length === 2 &&
+    value[0] === "get"
+  );
+}
+
+function isZoomField(value: any) {
+  return (
+    typeof(value) === 'object' &&
+    value.stops &&
+    typeof(value.property) === 'undefined' &&
+    Array.isArray(value.stops) &&
+    value.stops.length > 1 &&
+    value.stops.every((stop: Stop) => {
+      return (
+        Array.isArray(stop) &&
+        stop.length === 2
+      );
+    })
+  );
+}
+
+function isIdentityProperty(value: any) {
+  return (
+    typeof(value) === 'object' &&
+    value.type === "identity" &&
+    Object.prototype.hasOwnProperty.call(value, "property")
+  );
+}
+
+function isDataStopProperty(value: any) {
+  return (
+    typeof(value) === 'object' &&
+    value.stops &&
+    typeof(value.property) !== 'undefined' &&
+    value.stops.length > 1 &&
+    Array.isArray(value.stops) &&
+    value.stops.every((stop: Stop) => {
+      return (
+        Array.isArray(stop) &&
+        stop.length === 2 &&
+        typeof(stop[0]) === 'object'
+      );
+    })
+  );
+}
+
+function isDataField(value: any) {
+  return (
+    isIdentityProperty(value) ||
+    isDataStopProperty(value)
+  );
+}
+
+function isPrimative(value: any): value is string | boolean | number {
+  const valid = ["string", "boolean", "number"];
+  return valid.includes(typeof(value));
+}
+
+function isArrayOfPrimatives(values: any): values is Array<string | boolean | number> {
+  if (Array.isArray(values)) {
+    return values.every(isPrimative);
+  }
+  return false;
+}
+
+function getDataType(value: any, fieldSpec={} as any) {
+  if (value === undefined) {
+    return "value";
+  }
+  else if (isPrimative(value)) {
+    return "value";
+  }
+  else if (fieldSpec.type === "array" && isArrayOfPrimatives(value)) {
+    return "value";
+  }
+  else if (isZoomField(value)) {
+    return "zoom_function";
+  }
+  else if (isDataField(value)) {
+    return "data_function";
+  }
+  else {
+    return "expression";
+  }
+}
+
+
+type FieldFunctionProps = {
+  onChange(fieldName: string, value: any): unknown
+  fieldName: string
+  fieldType: string
+  fieldSpec: any
+  errors?: {[key: string]: {message: string}}
+  value?: any
+};
+
+type FieldFunctionState = {
+  dataType: string
+  isEditing: boolean
+}
+
+/** Supports displaying spec field for zoom function objects
+ * https://www.mapbox.com/mapbox-gl-style-spec/#types-function-zoom-property
+ */
+export default class FieldFunction extends React.Component<FieldFunctionProps, FieldFunctionState> {
+  constructor (props: FieldFunctionProps) {
+    super(props);
+    this.state = {
+      dataType: getDataType(props.value, props.fieldSpec),
+      isEditing: false,
+    }
+  }
+
+  static getDerivedStateFromProps(props: FieldFunctionProps, state: FieldFunctionState) {
+    // Because otherwise when editing values we end up accidentally changing field type.
+    if (state.isEditing) {
+      return {};
+    }
+    else {
+      return {
+        isEditing: false,
+        dataType: getDataType(props.value, props.fieldSpec)
+      };
+    }
+  }
+
+  getFieldFunctionType(fieldSpec: any) {
+    if (fieldSpec.expression.interpolated) {
+      return "exponential"
+    }
+    if (fieldSpec.type === "number") {
+      return "interval"
+    }
+    return "categorical"
+  }
+
+  addStop = () => {
+    const stops = this.props.value.stops.slice(0)
+    const lastStop = stops[stops.length - 1]
+    if (typeof lastStop[0] === "object") {
+      stops.push([
+        {zoom: lastStop[0].zoom + 1, value: lastStop[0].value},
+        lastStop[1]
+      ])
+    }
+    else {
+      stops.push([lastStop[0] + 1, lastStop[1]])
+    }
+
+    const changedValue = {
+      ...this.props.value,
+      stops: stops,
+    }
+
+    this.props.onChange(this.props.fieldName, changedValue)
+  }
+
+  deleteExpression = () => {
+    const {fieldSpec, fieldName} = this.props;
+    this.props.onChange(fieldName, fieldSpec.default);
+    this.setState({
+      dataType: "value",
+    });
+  }
+
+  deleteStop = (stopIdx: number) => {
+    const stops = this.props.value.stops.slice(0)
+    stops.splice(stopIdx, 1)
+
+    let changedValue = {
+      ...this.props.value,
+      stops: stops,
+    }
+
+    if(stops.length === 1) {
+      changedValue = stops[0][1]
+    }
+
+    this.props.onChange(this.props.fieldName, changedValue)
+  }
+
+  makeZoomFunction = () => {
+    const {value} = this.props;
+
+    let zoomFunc;
+    if (typeof(value) === "object") {
+      if (value.stops) {
+        zoomFunc = {
+          base: value.base,
+          stops: value.stops.map((stop: Stop) => {
+            return [stop[0].zoom, stop[1] || findDefaultFromSpec(this.props.fieldSpec)];
+          })
+        }
+      }
+      else {
+        zoomFunc = {
+          base: value.base,
+          stops: [
+            [6, findDefaultFromSpec(this.props.fieldSpec)],
+            [10, findDefaultFromSpec(this.props.fieldSpec)]
+          ]
+        }
+      }
+    }
+    else {
+      zoomFunc = {
+        stops: [
+          [6, value || findDefaultFromSpec(this.props.fieldSpec)],
+          [10, value || findDefaultFromSpec(this.props.fieldSpec)]
+        ]
+      }
+    }
+
+    this.props.onChange(this.props.fieldName, zoomFunc)
+  }
+
+  undoExpression = () => {
+    const {value, fieldName} = this.props;
+
+    if (isGetExpression(value)) {
+      this.props.onChange(fieldName, {
+        "type": "identity",
+        "property": value[1]
+      });
+      this.setState({
+        dataType: "value",
+      });
+    }
+    else if (isLiteralExpression(value)) {
+      this.props.onChange(fieldName, value[1]);
+      this.setState({
+        dataType: "value",
+      });
+    }
+  }
+
+  canUndo = () => {
+    const {value, fieldSpec} = this.props;
+    return (
+      isGetExpression(value) ||
+      isLiteralExpression(value) ||
+      isPrimative(value) ||
+      (Array.isArray(value) && fieldSpec.type === "array")
+    );
+  }
+
+  makeExpression = () => {
+    const {value, fieldSpec} = this.props;
+    let expression;
+
+    if (typeof(value) === "object" && 'stops' in value) {
+      expression = styleFunction.convertFunction(value, fieldSpec);
+    }
+    else if (isIdentityProperty(value)) {
+      expression = ["get", value.property];
+    }
+    else {
+      expression = ["literal", value || this.props.fieldSpec.default];
+    }
+    this.props.onChange(this.props.fieldName, expression);
+  }
+
+  makeDataFunction = () => {
+    const functionType = this.getFieldFunctionType(this.props.fieldSpec);
+    const stopValue = functionType === 'categorical' ? '' : 0;
+    const {value} = this.props;
+    let dataFunc;
+
+    if (typeof(value) === "object") {
+      if (value.stops) {
+        dataFunc = {
+          property: "",
+          type: functionType,
+          base: value.base,
+          stops: value.stops.map((stop: Stop) => {
+            return [{zoom: stop[0], value: stopValue}, stop[1] || findDefaultFromSpec(this.props.fieldSpec)];
+          })
+        }
+      }
+      else {
+        dataFunc = {
+          property: "",
+          type: functionType,
+          base: value.base,
+          stops: [
+            [{zoom: 6, value: stopValue}, findDefaultFromSpec(this.props.fieldSpec)],
+            [{zoom: 10, value: stopValue}, findDefaultFromSpec(this.props.fieldSpec)]
+          ]
+        }
+      }
+    }
+    else {
+      dataFunc = {
+        property: "",
+        type: functionType,
+        base: value.base,
+        stops: [
+          [{zoom: 6, value: stopValue}, this.props.value || findDefaultFromSpec(this.props.fieldSpec)],
+          [{zoom: 10, value: stopValue}, this.props.value || findDefaultFromSpec(this.props.fieldSpec)]
+        ]
+      }
+    }
+
+    this.props.onChange(this.props.fieldName, dataFunc)
+  }
+
+  onMarkEditing = () => {
+    this.setState({isEditing: true});
+  }
+
+  onUnmarkEditing = () => {
+    this.setState({isEditing: false});
+  }
+
+  render() {
+    const {dataType} = this.state;
+    const propClass = this.props.fieldSpec.default === this.props.value ? "maputnik-default-property" : "maputnik-modified-property"
+    let specField;
+
+    if (dataType === "expression") {
+      specField = (
+        <ExpressionProperty
+          errors={this.props.errors}
+          onChange={this.props.onChange.bind(this, this.props.fieldName)}
+          canUndo={this.canUndo}
+          onUndo={this.undoExpression}
+          onDelete={this.deleteExpression}
+          fieldType={this.props.fieldType}
+          fieldName={this.props.fieldName}
+          fieldSpec={this.props.fieldSpec}
+          value={this.props.value}
+          onFocus={this.onMarkEditing}
+          onBlur={this.onUnmarkEditing}
+        />
+      );
+    }
+    else if (dataType === "zoom_function") {
+      specField = (
+        <ZoomProperty
+          errors={this.props.errors}
+          onChange={this.props.onChange.bind(this)}
+          fieldType={this.props.fieldType}
+          fieldName={this.props.fieldName}
+          fieldSpec={this.props.fieldSpec}
+          value={this.props.value}
+          onDeleteStop={this.deleteStop}
+          onAddStop={this.addStop}
+          onChangeToDataFunction={this.makeDataFunction}
+          onExpressionClick={this.makeExpression}
+        />
+      )
+    }
+    else if (dataType === "data_function") {
+      // TODO: Rename to FieldFunction **this file** shouldn't be called that
+      specField = (
+        <DataProperty
+          errors={this.props.errors}
+          onChange={this.props.onChange.bind(this)}
+          fieldType={this.props.fieldType}
+          fieldName={this.props.fieldName}
+          fieldSpec={this.props.fieldSpec}
+          value={this.props.value}
+          onDeleteStop={this.deleteStop}
+          onAddStop={this.addStop}
+          onChangeToZoomFunction={this.makeZoomFunction}
+          onExpressionClick={this.makeExpression}
+        />
+      )
+    }
+    else {
+      specField = (
+        <SpecProperty
+          errors={this.props.errors}
+          onChange={this.props.onChange.bind(this)}
+          fieldType={this.props.fieldType}
+          fieldName={this.props.fieldName}
+          fieldSpec={this.props.fieldSpec}
+          value={this.props.value}
+          onZoomClick={this.makeZoomFunction}
+          onDataClick={this.makeDataFunction}
+          onExpressionClick={this.makeExpression}
+        />
+      )
+    }
+    return <div className={propClass} data-wd-key={"spec-field-container:"+this.props.fieldName}>
+      {specField}
+    </div>
+  }
+}
+

src/components/FieldId.tsx

@@ -0,0 +1,27 @@
+import React from 'react'
+
+import latest from '@maplibre/maplibre-gl-style-spec/dist/latest.json'
+import Block from './Block'
+import InputString from './InputString'
+
+type FieldIdProps = {
+  value: string
+  wdKey: string
+  onChange(value: string | undefined): unknown
+  error?: {message: string}
+};
+
+export default class FieldId extends React.Component<FieldIdProps> {
+  render() {
+    return <Block label={"ID"} fieldSpec={latest.layer.id}
+      data-wd-key={this.props.wdKey}
+      error={this.props.error}
+    >
+      <InputString
+        value={this.props.value}
+        onInput={this.props.onChange}
+        data-wd-key={this.props.wdKey + ".input"}
+      />
+    </Block>
+  }
+}

src/components/FieldJson.tsx

@@ -0,0 +1,13 @@
+import React from 'react'
+import InputJson, {InputJsonProps} from './InputJson'
+
+
+type FieldJsonProps = InputJsonProps & {};
+
+
+export default class FieldJson extends React.Component<FieldJsonProps> {
+  render() {
+    return <InputJson {...this.props} />
+  }
+}
+

src/components/FieldMaxZoom.tsx

@@ -0,0 +1,30 @@
+import React from 'react'
+
+import latest from '@maplibre/maplibre-gl-style-spec/dist/latest.json'
+import Block from './Block'
+import InputNumber from './InputNumber'
+
+type FieldMaxZoomProps = {
+  value?: number
+  onChange(value: number | undefined): unknown
+  error?: {message: string}
+};
+
+export default class FieldMaxZoom extends React.Component<FieldMaxZoomProps> {
+  render() {
+    return <Block label={"Max Zoom"} fieldSpec={latest.layer.maxzoom}
+      error={this.props.error}
+      data-wd-key="max-zoom"
+    >
+      <InputNumber
+        allowRange={true}
+        value={this.props.value}
+        onChange={this.props.onChange}
+        min={latest.layer.maxzoom.minimum}
+        max={latest.layer.maxzoom.maximum}
+        default={latest.layer.maxzoom.maximum}
+        data-wd-key="max-zoom.input"
+      />
+    </Block>
+  }
+}

src/components/FieldMinZoom.tsx

@@ -0,0 +1,30 @@
+import React from 'react'
+
+import latest from '@maplibre/maplibre-gl-style-spec/dist/latest.json'
+import Block from './Block'
+import InputNumber from './InputNumber'
+
+type FieldMinZoomProps = {
+  value?: number
+  onChange(...args: unknown[]): unknown
+  error?: {message: string}
+};
+
+export default class FieldMinZoom extends React.Component<FieldMinZoomProps> {
+  render() {
+    return <Block label={"Min Zoom"} fieldSpec={latest.layer.minzoom}
+      error={this.props.error}
+      data-wd-key="min-zoom"
+    >
+      <InputNumber
+        allowRange={true}
+        value={this.props.value}
+        onChange={this.props.onChange}
+        min={latest.layer.minzoom.minimum}
+        max={latest.layer.minzoom.maximum}
+        default={latest.layer.minzoom.minimum}
+        data-wd-key='min-zoom.input'
+      />
+    </Block>
+  }
+}

src/components/FieldMultiInput.tsx

@@ -0,0 +1,18 @@
+import React from 'react'
+import InputMultiInput, {InputMultiInputProps} from './InputMultiInput'
+import Fieldset from './Fieldset'
+
+
+type FieldMultiInputProps = InputMultiInputProps & {
+  label?: string
+};
+
+
+export default class FieldMultiInput extends React.Component<FieldMultiInputProps> {
+  render() {
+    return <Fieldset label={this.props.label}>
+      <InputMultiInput {...this.props} />
+    </Fieldset>
+  }
+}
+

src/components/FieldNumber.tsx

@@ -0,0 +1,20 @@
+import React from 'react'
+import InputNumber, {InputNumberProps} from './InputNumber'
+import Block from './Block'
+
+
+type FieldNumberProps = InputNumberProps & {
+  label?: string
+  fieldSpec?: {
+    doc: string
+  }
+};
+
+
+export default class FieldNumber extends React.Component<FieldNumberProps> {
+  render() {
+    return <Block label={this.props.label} fieldSpec={this.props.fieldSpec}>
+      <InputNumber {...this.props} />
+    </Block>
+  }
+}

src/components/FieldSelect.tsx

@@ -0,0 +1,22 @@
+import React from 'react'
+import Block from './Block'
+import InputSelect, {InputSelectProps} from './InputSelect'
+
+
+type FieldSelectProps = InputSelectProps & {
+  label?: string
+  fieldSpec?: {
+    doc: string
+  }
+};
+
+
+export default class FieldSelect extends React.Component<FieldSelectProps> {
+  render() {
+    return <Block label={this.props.label} fieldSpec={this.props.fieldSpec}>
+      <InputSelect {...this.props}/>
+    </Block>
+  }
+}
+
+

src/components/FieldSource.tsx

@@ -0,0 +1,35 @@
+import React from 'react'
+
+import latest from '@maplibre/maplibre-gl-style-spec/dist/latest.json'
+import Block from './Block'
+import InputAutocomplete from './InputAutocomplete'
+
+type FieldSourceProps = {
+  value?: string
+  wdKey?: string
+  onChange?(value: string| undefined): unknown
+  sourceIds?: unknown[]
+  error?: {message: string}
+};
+
+export default class FieldSource extends React.Component<FieldSourceProps> {
+  static defaultProps = {
+    onChange: () => {},
+    sourceIds: [],
+  }
+
+  render() {
+    return <Block
+      label={"Source"}
+      fieldSpec={latest.layer.source}
+      error={this.props.error}
+      data-wd-key={this.props.wdKey}
+    >
+      <InputAutocomplete
+        value={this.props.value}
+        onChange={this.props.onChange}
+        options={this.props.sourceIds?.map(src => [src, src])}
+      />
+    </Block>
+  }
+}

src/components/FieldSourceLayer.tsx

@@ -0,0 +1,37 @@
+import React from 'react'
+
+import {latest} from '@maplibre/maplibre-gl-style-spec'
+import Block from './Block'
+import InputAutocomplete from './InputAutocomplete'
+
+type FieldSourceLayerProps = {
+  value?: string
+  onChange?(...args: unknown[]): unknown
+  sourceLayerIds?: unknown[]
+  isFixed?: boolean
+  error?: {message: string}
+};
+
+export default class FieldSourceLayer extends React.Component<FieldSourceLayerProps> {
+  static defaultProps = {
+    onChange: () => {},
+    sourceLayerIds: [],
+    isFixed: false
+  }
+
+  render() {
+    return <Block 
+      label={"Source Layer"} 
+      fieldSpec={latest.layer['source-layer']}
+      data-wd-key="layer-source-layer"
+      error={this.props.error}
+    >
+      <InputAutocomplete
+        keepMenuWithinWindowBounds={!!this.props.isFixed}
+        value={this.props.value}
+        onChange={this.props.onChange}
+        options={this.props.sourceLayerIds?.map(l => [l, l])}
+      />
+    </Block>
+  }
+}

src/components/FieldString.tsx

@@ -0,0 +1,19 @@
+import React from 'react'
+import Block from './Block'
+import InputString, {InputStringProps} from './InputString'
+
+type FieldStringProps = InputStringProps & {
+  name?: string
+  label?: string
+  fieldSpec?: {
+    doc: string
+  }
+};
+
+export default class FieldString extends React.Component<FieldStringProps> {
+  render() {
+    return <Block label={this.props.label} fieldSpec={this.props.fieldSpec}>
+      <InputString {...this.props} />
+    </Block>
+  }
+}

src/components/FieldType.tsx

@@ -0,0 +1,52 @@
+import React from 'react'
+
+import latest from '@maplibre/maplibre-gl-style-spec/dist/latest.json'
+import Block from './Block'
+import InputSelect from './InputSelect'
+import InputString from './InputString'
+
+type FieldTypeProps = {
+  value: string
+  wdKey?: string
+  onChange(value: string): unknown
+  error?: {message: string}
+  disabled?: boolean
+};
+
+export default class FieldType extends React.Component<FieldTypeProps> {
+  static defaultProps = {
+    disabled: false,
+  }
+
+  render() {
+    return <Block label={"Type"} fieldSpec={latest.layer.type}
+      data-wd-key={this.props.wdKey}
+      error={this.props.error}
+    >
+      {this.props.disabled &&
+        <InputString
+          value={this.props.value}
+          disabled={true}
+        />
+      }
+      {!this.props.disabled &&
+        <InputSelect
+          options={[
+            ['background', 'Background'],
+            ['fill', 'Fill'],
+            ['line', 'Line'],
+            ['symbol', 'Symbol'],
+            ['raster', 'Raster'],
+            ['circle', 'Circle'],
+            ['fill-extrusion', 'Fill Extrusion'],
+            ['hillshade', 'Hillshade'],
+            ['heatmap', 'Heatmap'],
+          ]}
+          onChange={this.props.onChange}
+          value={this.props.value}
+          data-wd-key={this.props.wdKey + ".select"}
+        />
+      }
+    </Block>
+  }
+}

src/components/FieldUrl.tsx

@@ -0,0 +1,23 @@
+import React from 'react'
+import InputUrl, {FieldUrlProps as InputUrlProps} from './InputUrl'
+import Block from './Block'
+
+
+type FieldUrlProps = InputUrlProps & {
+  label: string;
+  fieldSpec?: {
+    doc: string
+  }
+};
+
+
+export default class FieldUrl extends React.Component<FieldUrlProps> {
+  render () {
+    return (
+      <Block label={this.props.label} fieldSpec={this.props.fieldSpec}>
+        <InputUrl {...this.props} />
+      </Block>
+    );
+  }
+}
+

src/components/Fieldset.tsx

@@ -0,0 +1,65 @@
+import React, { ReactElement } from 'react'
+import FieldDocLabel from './FieldDocLabel'
+import Doc from './Doc'
+import generateUniqueId from '../libs/document-uid';
+
+type FieldsetProps = {
+  label?: string,
+  fieldSpec?: { doc?: string },
+  action?: ReactElement,
+};
+
+type FieldsetState = {
+  showDoc: boolean
+};
+
+export default class Fieldset extends React.Component<FieldsetProps, FieldsetState> {
+  _labelId: string;
+
+  constructor (props: FieldsetProps) {
+    super(props);
+    this._labelId = generateUniqueId(`fieldset_label_`);
+    this.state = {
+      showDoc: false,
+    }
+  }
+
+  onToggleDoc = (val: boolean) => {
+    this.setState({
+      showDoc: val
+    });
+  }
+
+  render () {
+    return <div className="maputnik-input-block" role="group" aria-labelledby={this._labelId}>
+      {this.props.fieldSpec &&
+        <div className="maputnik-input-block-label">
+          <FieldDocLabel
+            label={this.props.label}
+            onToggleDoc={this.onToggleDoc}
+            fieldSpec={this.props.fieldSpec}
+          />
+        </div>
+      }
+      {!this.props.fieldSpec &&
+        <div className="maputnik-input-block-label">
+          {this.props.label}
+        </div>
+      }
+      <div className="maputnik-input-block-action">
+        {this.props.action}
+      </div>
+      <div className="maputnik-input-block-content">
+        {this.props.children}
+      </div>
+      {this.props.fieldSpec &&
+        <div
+          className="maputnik-doc-inline"
+          style={{display: this.state.showDoc ? '' : 'none'}}
+        >
+          <Doc fieldSpec={this.props.fieldSpec} />
+        </div>
+      }
+    </div>
+  }
+}

src/components/FilterEditor.tsx

@@ -0,0 +1,315 @@
+import React from 'react'
+import {mdiTableRowPlusAfter} from '@mdi/js';
+import {isEqual} from 'lodash';
+import {ExpressionSpecification, LegacyFilterSpecification, StyleSpecification} from 'maplibre-gl'
+import {latest, migrate, convertFilter} from '@maplibre/maplibre-gl-style-spec'
+import {mdiFunctionVariant} from '@mdi/js';
+
+import {combiningFilterOps} from '../libs/filterops'
+import InputSelect from './InputSelect'
+import Block from './Block'
+import SingleFilterEditor from './SingleFilterEditor'
+import FilterEditorBlock from './FilterEditorBlock'
+import InputButton from './InputButton'
+import Doc from './Doc'
+import ExpressionProperty from './_ExpressionProperty';
+
+
+function combiningFilter(props: FilterEditorProps): LegacyFilterSpecification | ExpressionSpecification {
+  const filter = props.filter || ['all'];
+
+  if (!Array.isArray(filter)) {
+    return filter;
+  }
+
+  let combiningOp = filter[0];
+  let filters = filter.slice(1);
+
+  if(combiningFilterOps.indexOf(combiningOp) < 0) {
+    combiningOp = 'all';
+    filters = [filter.slice(0)];
+  }
+
+  return [combiningOp, ...filters] as LegacyFilterSpecification | ExpressionSpecification;
+}
+
+function migrateFilter(filter: LegacyFilterSpecification | ExpressionSpecification) {
+  // This "any" can be removed in latest version of maplibre where maplibre re-exported types from style-spec
+  return (migrate(createStyleFromFilter(filter) as any).layers[0] as any).filter;
+}
+
+function createStyleFromFilter(filter: LegacyFilterSpecification | ExpressionSpecification): StyleSpecification & {id: string} {
+  return {
+    "id": "tmp",
+    "version": 8,
+    "name": "Empty Style",
+    "metadata": {"maputnik:renderer": "mlgljs"},
+    "sources": {
+      "tmp": {
+        "type": "geojson",
+        "data": ''
+      }
+    },
+    "sprite": "",
+    "glyphs": "https://orangemug.github.io/font-glyphs/glyphs/{fontstack}/{range}.pbf",
+    "layers": [
+      {
+        id: "tmp",
+        type: "fill",
+        source: "tmp",
+        filter: filter,
+      },
+    ],
+  };
+}
+
+const FILTER_OPS = [
+  "all",
+  "any",
+  "none"
+];
+
+// If we convert a filter that is an expression to an expression it'll remain the same in value
+function checkIfSimpleFilter (filter: LegacyFilterSpecification | ExpressionSpecification) {
+  if (filter.length === 1 && FILTER_OPS.includes(filter[0])) {
+    return true;
+  }
+  const expression = convertFilter(filter);
+  return !isEqual(expression, filter);
+}
+
+function hasCombiningFilter(filter: LegacyFilterSpecification | ExpressionSpecification) {
+  return combiningFilterOps.indexOf(filter[0]) >= 0
+}
+
+function hasNestedCombiningFilter(filter: LegacyFilterSpecification | ExpressionSpecification) {
+  if(hasCombiningFilter(filter)) {
+    return filter.slice(1).map(f => hasCombiningFilter(f as any)).filter(f => f == true).length > 0
+  }
+  return false
+}
+
+type FilterEditorProps = {
+  /** Properties of the vector layer and the available fields */
+  properties?: {[key:string]: any}
+  filter?: any[]
+  errors?: {[key:string]: any}
+  onChange(value: LegacyFilterSpecification | ExpressionSpecification): unknown
+};
+
+type FilterEditorState = {
+  showDoc: boolean
+  displaySimpleFilter: boolean
+  valueIsSimpleFilter?: boolean
+};
+
+export default class FilterEditor extends React.Component<FilterEditorProps, FilterEditorState> {
+  static defaultProps = {
+    filter: ["all"],
+  }
+
+  constructor (props: FilterEditorProps) {
+    super(props);
+    this.state = {
+      showDoc: false,
+      displaySimpleFilter: checkIfSimpleFilter(combiningFilter(props)),
+    };
+  }
+
+  // Convert filter to combining filter
+  onFilterPartChanged(filterIdx: number, newPart: any[]) {
+    const newFilter = combiningFilter(this.props).slice(0) as LegacyFilterSpecification | ExpressionSpecification
+    newFilter[filterIdx] = newPart
+    this.props.onChange(newFilter)
+  }
+
+  deleteFilterItem(filterIdx: number) {
+    const newFilter = combiningFilter(this.props).slice(0) as LegacyFilterSpecification | ExpressionSpecification
+    newFilter.splice(filterIdx + 1, 1)
+    this.props.onChange(newFilter)
+  }
+
+  addFilterItem = () => {
+    const newFilterItem = combiningFilter(this.props).slice(0) as LegacyFilterSpecification | ExpressionSpecification
+    (newFilterItem as any[]).push(['==', 'name', ''])
+    this.props.onChange(newFilterItem)
+  }
+
+  onToggleDoc = (val: boolean) => {
+    this.setState({
+      showDoc: val
+    });
+  }
+
+  makeFilter = () => {
+    this.setState({
+      displaySimpleFilter: true,
+    })
+  }
+
+  makeExpression = () => {
+    const filter = combiningFilter(this.props);
+    this.props.onChange(migrateFilter(filter));
+    this.setState({
+      displaySimpleFilter: false,
+    })
+  }
+
+  static getDerivedStateFromProps(props: FilterEditorProps, currentState: FilterEditorState) {
+    const displaySimpleFilter = checkIfSimpleFilter(combiningFilter(props));
+
+    // Upgrade but never downgrade
+    if (!displaySimpleFilter && currentState.displaySimpleFilter === true) {
+      return {
+        displaySimpleFilter: false,
+        valueIsSimpleFilter: false,
+      };
+    }
+    else if (displaySimpleFilter && currentState.displaySimpleFilter === false) {
+      return {
+        valueIsSimpleFilter: true,
+      }
+    }
+    else {
+      return {
+        valueIsSimpleFilter: false,
+      };
+    }
+  }
+
+  render() {
+    const {errors} = this.props;
+    const {displaySimpleFilter} = this.state;
+    const fieldSpec={
+      doc: latest.layer.filter.doc + " Combine multiple filters together by using a compound filter."
+    };
+    const defaultFilter = ["all"] as LegacyFilterSpecification | ExpressionSpecification;
+
+    const isNestedCombiningFilter = displaySimpleFilter && hasNestedCombiningFilter(combiningFilter(this.props));
+
+    if (isNestedCombiningFilter) {
+      return <div className="maputnik-filter-editor-unsupported">
+        <p>
+          Nested filters are not supported.
+        </p>
+        <InputButton
+          onClick={this.makeExpression}
+          title="Convert to expression"
+        >
+          <svg style={{marginRight: "0.2em", width:"14px", height:"14px", verticalAlign: "middle"}} viewBox="0 0 24 24">
+            <path fill="currentColor" d={mdiFunctionVariant} />
+          </svg>
+          Upgrade to expression
+        </InputButton>
+      </div>
+    }
+    else if (displaySimpleFilter) {
+      const filter = combiningFilter(this.props);
+      const combiningOp = filter[0];
+      const filters = filter.slice(1) as (LegacyFilterSpecification | ExpressionSpecification)[];
+
+      const actions = (
+        <div>
+          <InputButton
+            onClick={this.makeExpression}
+            title="Convert to expression"
+            className="maputnik-make-zoom-function"
+          >
+            <svg style={{width:"14px", height:"14px", verticalAlign: "middle"}} viewBox="0 0 24 24">
+              <path fill="currentColor" d={mdiFunctionVariant} />
+            </svg>
+          </InputButton>
+        </div>
+      );
+
+      const editorBlocks = filters.map((f, idx) => {
+        const error = errors![`filter[${idx+1}]`];
+
+        return (
+          <div key={`block-${idx}`}>
+            <FilterEditorBlock key={idx} onDelete={this.deleteFilterItem.bind(this, idx)}>
+              <SingleFilterEditor
+                properties={this.props.properties}
+                filter={f}
+                onChange={this.onFilterPartChanged.bind(this, idx + 1)}
+              />
+            </FilterEditorBlock>
+            {error &&
+              <div key="error" className="maputnik-inline-error">{error.message}</div>
+            }
+          </div>
+        );
+      })
+
+
+      return (
+        <>
+          <Block
+            key="top"
+            fieldSpec={fieldSpec}
+            label={"Filter"}
+            action={actions}
+          >
+            <InputSelect
+              value={combiningOp}
+              onChange={(v: [string, any]) => this.onFilterPartChanged(0, v)}
+              options={[["all", "every filter matches"], ["none", "no filter matches"], ["any", "any filter matches"]]}
+            />
+          </Block>
+          {editorBlocks}
+          <div
+            key="buttons"
+            className="maputnik-filter-editor-add-wrapper"
+          >
+            <InputButton
+              data-wd-key="layer-filter-button"
+              className="maputnik-add-filter"
+              onClick={this.addFilterItem}
+            >
+              <svg style={{width:"14px", height:"14px", verticalAlign: "text-bottom"}} viewBox="0 0 24 24">
+                <path fill="currentColor" d={mdiTableRowPlusAfter} />
+              </svg> Add filter
+            </InputButton>
+          </div>
+          <div
+            key="doc"
+            className="maputnik-doc-inline"
+            style={{display: this.state.showDoc ? '' : 'none'}}
+          >
+            <Doc fieldSpec={fieldSpec} />
+          </div>
+        </>
+      );
+    }
+    else {
+      const {filter} = this.props;
+
+      return (
+        <>
+          <ExpressionProperty
+            onDelete={() => {
+              this.setState({displaySimpleFilter: true});
+              this.props.onChange(defaultFilter);
+            }}
+            fieldName="filter"
+            fieldSpec={fieldSpec}
+            value={filter}
+            errors={errors}
+            onChange={this.props.onChange}
+          />
+          {this.state.valueIsSimpleFilter &&
+            <div className="maputnik-expr-infobox">
+              You&apos;ve entered a old style filter,{' '}
+              <button
+                onClick={this.makeFilter}
+                className="maputnik-expr-infobox__button"
+              >
+                switch to filter editor
+              </button>
+            </div>
+          }
+        </>
+      );
+    }
+  }
+}

src/components/FilterEditorBlock.tsx

@@ -1,23 +1,22 @@
 import React from 'react'
-import PropTypes from 'prop-types'
-import Button from '../Button'
+import InputButton from './InputButton'
 import {MdDelete} from 'react-icons/md'
 
-class FilterEditorBlock extends React.Component {
-  static propTypes = {
-    onDelete: PropTypes.func.isRequired,
-    children: PropTypes.element.isRequired,
-  }
+type FilterEditorBlockProps = {
+  onDelete(...args: unknown[]): unknown
+};
 
+export default class FilterEditorBlock extends React.Component<FilterEditorBlockProps> {
   render() {
     return <div className="maputnik-filter-editor-block">
       <div className="maputnik-filter-editor-block-action">
-        <Button
+        <InputButton
           className="maputnik-delete-filter"
           onClick={this.props.onDelete}
+          title="Delete filter block"
         >
           <MdDelete />
-        </Button>
+        </InputButton>
       </div>
       <div className="maputnik-filter-editor-block-content">
         {this.props.children}
@@ -26,4 +25,3 @@ class FilterEditorBlock extends React.Component {
   }
 }
 
-export default FilterEditorBlock

src/components/IconBackground.tsx

@@ -2,7 +2,7 @@ import React from 'react'
 import IconBase from 'react-icon-base'
 
 
-export default class BackgroundIcon extends React.Component {
+export default class IconBackground extends React.Component {
   render() {
     return (
       <IconBase viewBox="0 0 20 20" {...this.props}>

src/components/IconCircle.tsx

@@ -2,7 +2,7 @@ import React from 'react'
 import IconBase from 'react-icon-base'
 
 
-export default class FillIcon extends React.Component {
+export default class IconCircle extends React.Component {
   render() {
     return (
       <IconBase viewBox="0 0 20 20" {...this.props}>

src/components/IconFill.tsx

@@ -2,7 +2,7 @@ import React from 'react'
 import IconBase from 'react-icon-base'
 
 
-export default class FillIcon extends React.Component {
+export default class IconFill extends React.Component {
   render() {
     return (
       <IconBase viewBox="0 0 20 20" {...this.props}>

src/components/IconLayer.tsx

@@ -0,0 +1,33 @@
+import React from 'react'
+
+import IconLine from './IconLine'
+import IconFill from './IconFill'
+import IconSymbol from './IconSymbol'
+import IconBackground from './IconBackground'
+import IconCircle from './IconCircle'
+import IconMissing from './IconMissing'
+
+type IconLayerProps = {
+  type: string
+  style?: object
+  className?: string
+};
+
+export default class IconLayer extends React.Component<IconLayerProps> {
+  render() {
+    const iconProps = { style: this.props.style }
+    switch(this.props.type) {
+    case 'fill-extrusion': return <IconBackground {...iconProps} />
+    case 'raster': return <IconFill {...iconProps} />
+    case 'hillshade': return <IconFill {...iconProps} />
+    case 'heatmap': return <IconFill {...iconProps} />
+    case 'fill': return <IconFill {...iconProps} />
+    case 'background': return <IconBackground {...iconProps} />
+    case 'line': return <IconLine {...iconProps} />
+    case 'symbol': return <IconSymbol {...iconProps} />
+    case 'circle': return <IconCircle {...iconProps} />
+    default: return <IconMissing {...iconProps} />
+    }
+  }
+}
+

src/components/IconLine.tsx

@@ -2,7 +2,7 @@ import React from 'react'
 import IconBase from 'react-icon-base'
 
 
-export default class FillIcon extends React.Component {
+export default class IconLine extends React.Component {
   render() {
     return (
       <IconBase viewBox="0 0 20 20" {...this.props}>

src/components/IconMissing.tsx

@@ -0,0 +1,11 @@
+import React from 'react'
+import {MdPriorityHigh} from 'react-icons/md'
+
+
+export default class IconMissing extends React.Component {
+  render() {
+    return (
+      <MdPriorityHigh {...this.props} />
+    )
+  }
+}

src/components/IconSymbol.tsx

@@ -2,7 +2,7 @@ import React from 'react'
 import IconBase from 'react-icon-base'
 
 
-export default class SymbolIcon extends React.Component {
+export default class IconSymbol extends React.Component {
   render() {
     return (
       <IconBase viewBox="0 0 20 20" {...this.props}>

src/components/InputArray.tsx

@@ -0,0 +1,118 @@
+import React from 'react'
+import InputString from './InputString'
+import InputNumber from './InputNumber'
+
+export type FieldArrayProps = {
+  value: (string | number | undefined)[]
+  type?: string
+  length?: number
+  default?: (string | number | undefined)[]
+  onChange?(value: (string | number | undefined)[] | undefined): unknown
+  'aria-label'?: string
+  label?: string
+};
+
+type FieldArrayState = {
+  value: (string | number | undefined)[]
+  initialPropsValue: unknown[]
+}
+
+export default class FieldArray extends React.Component<FieldArrayProps, FieldArrayState> {
+  static defaultProps = {
+    value: [],
+    default: [],
+  }
+
+  constructor (props: FieldArrayProps) {
+    super(props);
+    this.state = {
+      value: this.props.value.slice(0),
+      // This is so we can compare changes in getDerivedStateFromProps
+      initialPropsValue: this.props.value.slice(0),
+    };
+  }
+
+  static getDerivedStateFromProps(props: FieldArrayProps, state: FieldArrayState) {
+    const value: any[] = [];
+    const initialPropsValue = state.initialPropsValue.slice(0);
+
+    Array(props.length).fill(null).map((_, i) => {
+      if (props.value[i] === state.initialPropsValue[i]) {
+        value[i] = state.value[i];
+      }
+      else {
+        value[i] = state.value[i];
+        initialPropsValue[i] = state.value[i];
+      }
+    })
+
+    return {
+      value,
+      initialPropsValue,
+    };
+  }
+
+  isComplete(value: unknown[]) {
+    return Array(this.props.length).fill(null).every((_, i) => {
+      const val = value[i]
+      return !(val === undefined || val === "");
+    });
+  }
+
+  changeValue(idx: number, newValue: string | number | undefined) {
+    const value = this.state.value.slice(0);
+    value[idx] = newValue;
+
+    this.setState({
+      value,
+    }, () => {
+      if (this.isComplete(value) && this.props.onChange) {
+        this.props.onChange(value);
+      }
+      else if (this.props.onChange){
+        // Unset until complete
+        this.props.onChange(undefined);
+      }
+    });
+  }
+
+  render() {
+    const {value} = this.state;
+
+    const containsValues = (
+      value.length > 0 &&
+      !value.every(val => {
+        return (val === "" || val === undefined)
+      })
+    );
+
+    const inputs = Array(this.props.length).fill(null).map((_, i) => {
+      if(this.props.type === 'number') {
+        return <InputNumber
+          key={i}
+          default={containsValues || !this.props.default ? undefined : this.props.default[i] as number}
+          value={value[i] as number}
+          required={containsValues ? true : false}
+          onChange={(v) => this.changeValue(i, v)}
+          aria-label={this.props['aria-label'] || this.props.label}
+        />
+      } else {
+        return <InputString
+          key={i}
+          default={containsValues || !this.props.default ? undefined : this.props.default[i] as string}
+          value={value[i] as string}
+          required={containsValues ? true : false}
+          onChange={this.changeValue.bind(this, i)}
+          aria-label={this.props['aria-label'] || this.props.label}
+        />
+      }
+    })
+
+    return (
+      <div className="maputnik-array">
+        {inputs}
+      </div>
+    )
+  }
+}
+

src/components/InputAutocomplete.tsx

@@ -1,23 +1,25 @@
 import React from 'react'
-import PropTypes from 'prop-types'
 import classnames from 'classnames'
 import Autocomplete from 'react-autocomplete'
 
 
 const MAX_HEIGHT = 140;
 
-class AutocompleteInput extends React.Component {
-  static propTypes = {
-    value: PropTypes.string,
-    options: PropTypes.array,
-    onChange: PropTypes.func,
-    keepMenuWithinWindowBounds: PropTypes.bool
-  }
+export type InputAutocompleteProps = {
+  value?: string
+  options: any[]
+  onChange(value: string | undefined): unknown
+  keepMenuWithinWindowBounds?: boolean
+  'aria-label'?: string
+};
 
+export default class InputAutocomplete extends React.Component<InputAutocompleteProps> {
   state = {
     maxHeight: MAX_HEIGHT
   }
 
+  autocompleteMenuEl: HTMLDivElement | null = null;
+
   static defaultProps = {
     onChange: () => {},
     options: [],
@@ -25,7 +27,7 @@ class AutocompleteInput extends React.Component {
 
   calcMaxHeight() {
     if(this.props.keepMenuWithinWindowBounds) {
-      const maxHeight = window.innerHeight - this.autocompleteMenuEl.getBoundingClientRect().top;
+      const maxHeight = window.innerHeight - this.autocompleteMenuEl!.getBoundingClientRect().top;
       const limitedMaxHeight = Math.min(maxHeight, MAX_HEIGHT);
 
       if(limitedMaxHeight != this.state.maxHeight) {
@@ -44,7 +46,7 @@ class AutocompleteInput extends React.Component {
     this.calcMaxHeight();
   }
 
-  onChange (v) {
+  onChange(v: string) {
     this.props.onChange(v === "" ? undefined : v);
   }
 
@@ -63,9 +65,10 @@ class AutocompleteInput extends React.Component {
         }}
         wrapperProps={{
           className: "maputnik-autocomplete",
-          style: null
+          style: {}
         }}
         inputProps={{
+          'aria-label': this.props['aria-label'],
           className: "maputnik-string",
           spellCheck: false
         }}
@@ -73,11 +76,12 @@ class AutocompleteInput extends React.Component {
         items={this.props.options}
         getItemValue={(item) => item[0]}
         onSelect={v => this.onChange(v)}
-        onChange={(e, v) => this.onChange(v)}
+        onChange={(_e, v) => this.onChange(v)}
         shouldItemRender={(item, value="") => {
           if (typeof(value) === "string") {
             return item[0].toLowerCase().indexOf(value.toLowerCase()) > -1
           }
+          return false
         }}
         renderItem={(item, isHighlighted) => (
           <div
@@ -87,7 +91,7 @@ class AutocompleteInput extends React.Component {
               "maputnik-autocomplete-menu-item-selected": isHighlighted,
             })}
           >
-           {item[1]}
+            {item[1]}
           </div>
         )}
       />
@@ -95,4 +99,4 @@ class AutocompleteInput extends React.Component {
   }
 }
 
-export default AutocompleteInput
+

src/components/InputButton.tsx

@@ -0,0 +1,33 @@
+import React from 'react'
+import classnames from 'classnames'
+
+type InputButtonProps = {
+  "data-wd-key"?: string
+  "aria-label"?: string
+  onClick?(...args: unknown[]): unknown
+  style?: object
+  className?: string
+  children?: React.ReactNode
+  disabled?: boolean
+  type?: typeof HTMLButtonElement.prototype.type
+  id?: string
+  title?: string
+};
+
+export default class InputButton extends React.Component<InputButtonProps> {
+  render() {
+    return <button
+      id={this.props.id}
+      title={this.props.title}
+      type={this.props.type}
+      onClick={this.props.onClick}
+      disabled={this.props.disabled}
+      aria-label={this.props["aria-label"]}
+      className={classnames("maputnik-button", this.props.className)}
+      data-wd-key={this.props["data-wd-key"]}
+      style={this.props.style}
+    >
+      {this.props.children}
+    </button>
+  }
+}

src/components/InputCheckbox.tsx

@@ -0,0 +1,37 @@
+import React from 'react'
+
+export type InputCheckboxProps = {
+  value?: boolean
+  style?: object
+  onChange(...args: unknown[]): unknown
+};
+
+export default class InputCheckbox extends React.Component<InputCheckboxProps> {
+  static defaultProps = {
+    value: false,
+  }
+
+  onChange = () => {
+    this.props.onChange(!this.props.value);
+  }
+
+  render() {
+    return <div className="maputnik-checkbox-wrapper">
+      <input
+        className="maputnik-checkbox"
+        type="checkbox"
+        style={this.props.style}
+        onChange={this.onChange}
+        onClick={this.onChange}
+        checked={this.props.value}
+      />
+      <div className="maputnik-checkbox-box">
+        <svg style={{
+          display: this.props.value ? 'inline' : 'none'
+        }} className="maputnik-checkbox-icon" viewBox='0 0 32 32'>
+          <path d='M1 14 L5 10 L13 18 L27 4 L31 8 L13 26 z' />
+        </svg>
+      </div>
+    </div>
+  }
+}

src/components/InputColor.tsx

@@ -1,27 +1,39 @@
 import React from 'react'
 import Color from 'color'
 import ChromePicker from 'react-color/lib/components/chrome/Chrome'
-import PropTypes from 'prop-types'
+import {ColorResult} from 'react-color';
+import lodash from 'lodash';
 
-function formatColor(color) {
+function formatColor(color: ColorResult): string {
   const rgb = color.rgb
   return `rgba(${rgb.r}, ${rgb.g}, ${rgb.b}, ${rgb.a})`
 }
 
-/*** Number fields with support for min, max and units and documentation*/
-class ColorField extends React.Component {
-  static propTypes = {
-    onChange: PropTypes.func.isRequired,
-    name: PropTypes.string.isRequired,
-    value: PropTypes.string,
-    doc: PropTypes.string,
-    style: PropTypes.object,
-    default: PropTypes.string,
-  }
+export type InputColorProps = {
+  onChange(...args: unknown[]): unknown
+  name?: string
+  value?: string
+  doc?: string
+  style?: object
+  default?: string
+  'aria-label'?: string
+};
 
+/*** Number fields with support for min, max and units and documentation*/
+export default class InputColor extends React.Component<InputColorProps> {
   state = {
     pickerOpened: false
   }
+  colorInput: HTMLInputElement | null = null;
+
+  constructor (props: InputColorProps) {
+    super(props);
+    this.onChangeNoCheck = lodash.throttle(this.onChangeNoCheck, 1000/30);
+  }
+
+  onChangeNoCheck(v: string) {
+    this.props.onChange(v);
+  }
 
   //TODO: I much rather would do this with absolute positioning
   //but I am too stupid to get it to work together with fixed position
@@ -57,32 +69,32 @@ class ColorField extends React.Component {
     }
   }
 
-  onChange (v) {
+  onChange (v: string) {
     this.props.onChange(v === "" ? undefined : v);
   }
 
   render() {
     const offset = this.calcPickerOffset()
-    var currentColor = this.color.object()
-    currentColor = {
+    const currentColor = this.color.object();
+    const currentChromeColor = {
       r: currentColor.r,
       g: currentColor.g,
       b: currentColor.b,
       // Rename alpha -> a for ChromePicker
-      a: currentColor.alpha
+      a: currentColor.alpha!
     }
 
     const picker = <div
       className="maputnik-color-picker-offset"
       style={{
-	      position: 'fixed',
-	      zIndex: 1,
+        position: 'fixed',
+        zIndex: 1,
         left: offset.left,
         top: offset.top,
       }}>
       <ChromePicker
-        color={currentColor}
-        onChange={c => this.props.onChange(formatColor(c))}
+        color={currentChromeColor}
+        onChange={c => this.onChangeNoCheck(formatColor(c))}
       />
       <div
         className="maputnik-color-picker-offset"
@@ -98,7 +110,7 @@ class ColorField extends React.Component {
       />
     </div>
 
-    var swatchStyle = {
+    const swatchStyle = {
       backgroundColor: this.props.value
     };
 
@@ -106,7 +118,9 @@ class ColorField extends React.Component {
       {this.state.pickerOpened && picker}
       <div className="maputnik-color-swatch" style={swatchStyle}></div>
       <input
+        aria-label={this.props['aria-label']}
         spellCheck="false"
+        autoComplete="off"
         className="maputnik-color"
         ref={(input) => this.colorInput = input}
         onClick={this.togglePicker}
@@ -120,4 +134,3 @@ class ColorField extends React.Component {
   }
 }
 
-export default ColorField

src/components/InputDynamicArray.tsx

@@ -0,0 +1,144 @@
+import React from 'react'
+import capitalize from 'lodash.capitalize'
+import {MdDelete} from 'react-icons/md'
+
+import InputString from './InputString'
+import InputNumber from './InputNumber'
+import InputButton from './InputButton'
+import FieldDocLabel from './FieldDocLabel'
+import InputEnum from './InputEnum'
+import InputUrl from './InputUrl'
+
+
+export type FieldDynamicArrayProps = {
+  value?: (string | number | undefined)[]
+  type?: 'url' | 'number' | 'enum' | 'string'
+  default?: (string | number | undefined)[]
+  onChange?(values: (string | number | undefined)[] | undefined): unknown
+  style?: object
+  fieldSpec?: {
+    values?: any
+  }
+  'aria-label'?: string
+  label: string
+};
+
+
+export default class FieldDynamicArray extends React.Component<FieldDynamicArrayProps> {
+  changeValue(idx: number, newValue: string | number | undefined) {
+    const values = this.values.slice(0)
+    values[idx] = newValue
+    if (this.props.onChange) this.props.onChange(values)
+  }
+
+  get values() {
+    return this.props.value || this.props.default || []
+  }
+
+  addValue = () => {
+    const values = this.values.slice(0)
+    if (this.props.type === 'number') {
+      values.push(0)
+    }
+    else if (this.props.type === 'url') {
+      values.push("");
+    }
+    else if (this.props.type === 'enum') {
+      const {fieldSpec} = this.props;
+      const defaultValue = Object.keys(fieldSpec!.values)[0];
+      values.push(defaultValue);
+    } else {
+      values.push("")
+    }
+
+    if (this.props.onChange) this.props.onChange(values)
+  }
+
+  deleteValue(valueIdx: number) {
+    const values = this.values.slice(0)
+    values.splice(valueIdx, 1)
+
+    if (this.props.onChange) this.props.onChange(values.length > 0 ? values : undefined);
+  }
+
+  render() {
+    const inputs = this.values.map((v, i) => {
+      const deleteValueBtn= <DeleteValueInputButton onClick={this.deleteValue.bind(this, i)} />
+      let input;
+      if(this.props.type === 'url') {
+        input = <InputUrl
+          value={v as string}
+          onChange={this.changeValue.bind(this, i)}
+          aria-label={this.props['aria-label'] || this.props.label}
+        />
+      }
+      else if (this.props.type === 'number') {
+        input = <InputNumber
+          value={v as number}
+          onChange={this.changeValue.bind(this, i)}
+          aria-label={this.props['aria-label'] || this.props.label}
+        />
+      }
+      else if (this.props.type === 'enum') {
+        const options = Object.keys(this.props.fieldSpec?.values).map(v => [v, capitalize(v)]);
+        input = <InputEnum
+          options={options}
+          value={v as string}
+          onChange={this.changeValue.bind(this, i)}
+          aria-label={this.props['aria-label'] || this.props.label}
+        />
+      }
+      else {
+        input = <InputString
+          value={v as string}
+          onChange={this.changeValue.bind(this, i)}
+          aria-label={this.props['aria-label'] || this.props.label}
+        />
+      }
+
+      return <div
+        style={this.props.style}
+        key={i}
+        className="maputnik-array-block"
+      >
+        <div className="maputnik-array-block-action">
+          {deleteValueBtn}
+        </div>
+        <div className="maputnik-array-block-content">
+          {input}
+        </div>
+      </div>
+    })
+
+    return (
+      <div className="maputnik-array">
+        {inputs}
+        <InputButton
+          className="maputnik-array-add-value"
+          onClick={this.addValue}
+        >
+          Add value
+        </InputButton>
+      </div>
+    );
+  }
+}
+
+type DeleteValueInputButtonProps = {
+  onClick?(...args: unknown[]): unknown
+};
+
+class DeleteValueInputButton extends React.Component<DeleteValueInputButtonProps> {
+  render() {
+    return <InputButton
+      className="maputnik-delete-stop"
+      onClick={this.props.onClick}
+      title="Remove array item"
+    >
+      <FieldDocLabel
+        label={<MdDelete />}
+      />
+    </InputButton>
+  }
+}
+

src/components/InputEnum.tsx

@@ -0,0 +1,50 @@
+import React from 'react'
+import InputSelect from './InputSelect'
+import InputMultiInput from './InputMultiInput'
+
+
+function optionsLabelLength(options: any[]) {
+  let sum = 0;
+  options.forEach(([_, label]) => {
+    sum += label.length
+  })
+  return sum
+}
+
+
+export type InputEnumProps = {
+  "data-wd-key"?: string
+  value?: string
+  style?: object
+  default?: string
+  name?: string
+  onChange(...args: unknown[]): unknown
+  options: any[]
+  'aria-label'?: string
+  label?: string
+};
+
+
+export default class InputEnum extends React.Component<InputEnumProps> {
+  render() {
+    const {options, value, onChange, name, label} = this.props;
+
+    if(options.length <= 3 && optionsLabelLength(options) <= 20) {
+      return <InputMultiInput
+        name={name}
+        options={options}
+        value={(value || this.props.default)!}
+        onChange={onChange}
+        aria-label={this.props['aria-label'] || label}
+      />
+    } else {
+      return <InputSelect
+        options={options}
+        value={(value || this.props.default)!}
+        onChange={onChange}
+        aria-label={this.props['aria-label'] || label}
+      />
+    }
+  }
+}
+

src/components/InputFont.tsx

@@ -0,0 +1,61 @@
+import React from 'react'
+import InputAutocomplete from './InputAutocomplete'
+
+export type FieldFontProps = {
+  name: string
+  value?: string[]
+  default?: string[]
+  fonts?: unknown[]
+  style?: object
+  onChange(...args: unknown[]): unknown
+  'aria-label'?: string
+};
+
+export default class FieldFont extends React.Component<FieldFontProps> {
+  static defaultProps = {
+    fonts: []
+  }
+
+  get values() {
+    const out = this.props.value || this.props.default || [];
+
+    // Always put a "" in the last field to you can keep adding entries
+    if (out[out.length-1] !== ""){
+      return out.concat("");
+    }
+    else {
+      return out;
+    }
+  }
+
+  changeFont(idx: number, newValue: string) {
+    const changedValues = this.values.slice(0)
+    changedValues[idx] = newValue
+    const filteredValues = changedValues
+      .filter(v => v !== undefined)
+      .filter(v => v !== "")
+
+    this.props.onChange(filteredValues);
+  }
+
+  render() {
+    const inputs = this.values.map((value, i) => {
+      return <li
+        key={i}
+      >
+        <InputAutocomplete
+          aria-label={this.props['aria-label'] || this.props.name}
+          value={value}
+          options={this.props.fonts?.map(f => [f, f])}
+          onChange={this.changeFont.bind(this, i)}
+        />
+      </li>
+    })
+
+    return (
+      <ul className="maputnik-font">
+        {inputs}
+      </ul>
+    );
+  }
+}

src/components/InputJson.tsx

@@ -0,0 +1,176 @@
+import React from 'react'
+import classnames from 'classnames';
+import CodeMirror, { ModeSpec } from 'codemirror';
+
+import 'codemirror/mode/javascript/javascript'
+import 'codemirror/addon/lint/lint'
+import 'codemirror/addon/edit/matchbrackets'
+import 'codemirror/lib/codemirror.css'
+import 'codemirror/addon/lint/lint.css'
+import stringifyPretty from 'json-stringify-pretty-compact'
+import '../libs/codemirror-mgl';
+
+
+export type InputJsonProps = {
+  layer: any
+  maxHeight?: number
+  onChange?(...args: unknown[]): unknown
+  lineNumbers?: boolean
+  lineWrapping?: boolean
+  getValue?(data: any): string
+  gutters?: string[]
+  className?: string
+  onFocus?(...args: unknown[]): unknown
+  onBlur?(...args: unknown[]): unknown
+  onJSONValid?(...args: unknown[]): unknown
+  onJSONInvalid?(...args: unknown[]): unknown
+  mode?: ModeSpec<any>
+  lint?: boolean | object
+};
+
+type InputJsonState = {
+  isEditing: boolean
+  showMessage: boolean
+  prevValue: string
+};
+
+export default class InputJson extends React.Component<InputJsonProps, InputJsonState> {
+  static defaultProps = {
+    lineNumbers: true,
+    lineWrapping: false,
+    gutters: ["CodeMirror-lint-markers"],
+    getValue: (data: any) => {
+      return stringifyPretty(data, {indent: 2, maxLength: 40});
+    },
+    onFocus: () => {},
+    onBlur: () => {},
+    onJSONInvalid: () => {},
+    onJSONValid: () => {},
+  }
+  _keyEvent: string;
+  _doc: CodeMirror.Editor | undefined;
+  _el: HTMLDivElement | null = null;
+  _cancelNextChange: boolean = false;
+
+  constructor(props: InputJsonProps) {
+    super(props);
+    this._keyEvent = "keyboard";
+    this.state = {
+      isEditing: false,
+      showMessage: false,
+      prevValue: this.props.getValue!(this.props.layer),
+    };
+  }
+
+  componentDidMount () {
+    this._doc = CodeMirror(this._el!, {
+      value: this.props.getValue!(this.props.layer),
+      mode: this.props.mode || {
+        name: "mgl",
+      },
+      lineWrapping: this.props.lineWrapping,
+      tabSize: 2,
+      theme: 'maputnik',
+      viewportMargin: Infinity,
+      lineNumbers: this.props.lineNumbers,
+      lint: this.props.lint || {
+        context: "layer"
+      },
+      matchBrackets: true,
+      gutters: this.props.gutters,
+      scrollbarStyle: "null",
+    });
+
+    this._doc.on('change', this.onChange);
+    this._doc.on('focus', this.onFocus);
+    this._doc.on('blur', this.onBlur);
+  }
+
+  onPointerDown = () => {
+    this._keyEvent = "pointer";
+  }
+
+  onFocus = () => {
+    if (this.props.onFocus) this.props.onFocus();
+    this.setState({
+      isEditing: true,
+      showMessage: (this._keyEvent === "keyboard"),
+    });
+  }
+
+  onBlur = () => {
+    this._keyEvent = "keyboard";
+    if (this.props.onBlur) this.props.onBlur();
+    this.setState({
+      isEditing: false,
+      showMessage: false,
+    });
+  }
+
+  componentWillUnMount () {
+    this._doc!.off('change', this.onChange);
+    this._doc!.off('focus', this.onFocus);
+    this._doc!.off('blur', this.onBlur);
+  }
+
+  componentDidUpdate(prevProps: InputJsonProps) {
+    if (!this.state.isEditing && prevProps.layer !== this.props.layer) {
+      this._cancelNextChange = true;
+      this._doc!.setValue(
+        this.props.getValue!(this.props.layer),
+      )
+    }
+  }
+
+  onChange = (_e: unknown) => {
+    if (this._cancelNextChange) {
+      this._cancelNextChange = false;
+      this.setState({
+        prevValue: this._doc!.getValue(),
+      })
+      return;
+    }
+    const newCode = this._doc!.getValue();
+
+    if (this.state.prevValue !== newCode) {
+      let parsedLayer, err;
+      try {
+        parsedLayer = JSON.parse(newCode);
+      } catch(_err) {
+        err = _err;
+        console.warn(_err)
+      }
+
+      if (err && this.props.onJSONInvalid) {
+        this.props.onJSONInvalid();
+      }
+      else {
+        if (this.props.onChange) this.props.onChange(parsedLayer)
+        if (this.props.onJSONValid) this.props.onJSONValid();
+      }
+    }
+
+    this.setState({
+      prevValue: newCode,
+    });
+  }
+
+  render() {
+    const {showMessage} = this.state;
+    const style = {} as {maxHeight?: number};
+    if (this.props.maxHeight) {
+      style.maxHeight = this.props.maxHeight;
+    }
+
+    return <div className="JSONEditor" onPointerDown={this.onPointerDown} aria-hidden="true">
+      <div className={classnames("JSONEditor__message", {"JSONEditor__message--on": showMessage})}>
+        Press <kbd>ESC</kbd> to lose focus
+      </div>
+      <div
+        className={classnames("codemirror-container", this.props.className)}
+        ref={(el) => this._el = el}
+        style={style}
+      />
+    </div>
+  }
+}

src/components/InputMultiInput.tsx

@@ -0,0 +1,41 @@
+import React from 'react'
+import classnames from 'classnames'
+
+export type InputMultiInputProps = {
+  name?: string
+  value: string
+  options: any[]
+  onChange(...args: unknown[]): unknown
+  'aria-label'?: string
+};
+
+export default class InputMultiInput extends React.Component<InputMultiInputProps> {
+  render() {
+    let options = this.props.options
+    if(options.length > 0 && !Array.isArray(options[0])) {
+      options = options.map(v => [v, v])
+    }
+
+    const selectedValue = this.props.value || options[0][0]
+    const radios = options.map(([val, label])=> {
+      return <label
+        key={val}
+        className={classnames("maputnik-radio-as-button", {"maputnik-button-selected": val === selectedValue})}
+      >
+        <input type="radio"
+          name={this.props.name}
+          onChange={_e => this.props.onChange(val)}
+          value={val}
+          checked={val === selectedValue}
+        />
+        {label}
+      </label>
+    })
+
+    return <fieldset className="maputnik-multibutton" aria-label={this.props['aria-label']}>
+      {radios}
+    </fieldset>
+  }
+}
+
+