diff --git a/packages/theme-switcher/.eslintignore b/packages/theme-switcher/.eslintignore
new file mode 100644
index 0000000000000000000000000000000000000000..c139ed4c11bae3aeb416c866e2a9aa248930c65f
--- /dev/null
+++ b/packages/theme-switcher/.eslintignore
@@ -0,0 +1,4 @@
+/vendor/**
+/dist/**
+*.conf.js
+*.config.js
\ No newline at end of file
diff --git a/packages/theme-switcher/.eslintrc.json b/packages/theme-switcher/.eslintrc.json
new file mode 100644
index 0000000000000000000000000000000000000000..d72b93bea3b7ce923648f9b14a916bb02dd2b348
--- /dev/null
+++ b/packages/theme-switcher/.eslintrc.json
@@ -0,0 +1,4 @@
+{
+ "root": true,
+ "extends": "./../../eslint.common.json"
+}
\ No newline at end of file
diff --git a/packages/theme-switcher/.gitignore b/packages/theme-switcher/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..fa695126c36cf867c9eb8810b6a6d8636ace4d77
--- /dev/null
+++ b/packages/theme-switcher/.gitignore
@@ -0,0 +1,6 @@
+dist
+node_modules
+.idea
+npm-debug.log
+package-lock.json
+index.html
diff --git a/packages/theme-switcher/.npmignore b/packages/theme-switcher/.npmignore
new file mode 100644
index 0000000000000000000000000000000000000000..bd8138ceb1b9d6026edec0d20ac4be9940d5cf73
--- /dev/null
+++ b/packages/theme-switcher/.npmignore
@@ -0,0 +1,5 @@
+node_modules
+.idea
+npm-debug.log
+package-lock.json
+index.html
diff --git a/packages/theme-switcher/LICENSE b/packages/theme-switcher/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..4362b49151d7b34ef83b3067a8f9c9f877d72a0e
--- /dev/null
+++ b/packages/theme-switcher/LICENSE
@@ -0,0 +1,502 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
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+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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diff --git a/packages/theme-switcher/README.md b/packages/theme-switcher/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..3ebe38af410fc5165f09801bd54c8999938423b4
--- /dev/null
+++ b/packages/theme-switcher/README.md
@@ -0,0 +1,132 @@
+# Theme-Switcher web component
+
+This web component allows to switch between multiple predefined themes and can detect browsers default theme.
+
+## Installation
+
+You can install these components via npm:
+
+```bash
+npm i @dbp-toolkit/theme-switcher
+```
+
+After you have installed the theme-switcher component via npm you can use this example to get a button
+that opens a dialogue with multiple themes. After you have selected a theme the class of the theme is
+applied to the body of your html document. To add a style to the specific class you have to
+
+```html
+<dbp-theme-switcher
+ themes='[{"class": "light-theme", "icon": "sun", "name": "Light Mode"},
+ {"class": "dark-theme", "icon": "night", "name": "Dark Mode"}]'>
+</dbp-theme-switcher>
+
+
+<style>
+ .light-theme{
+ --dbp-override-base: white;
+ --dbp-override-base-inverted: black;
+ --dbp-override-text: black;
+ --dbp-override-text-inverted: white;
+ --dbp-override-text-muted: #767676;
+ --dbp-override-accent: #c24f68;
+ --dbp-override-primary-base: #2a4491;
+ --dbp-override-primary-text: white;
+ --dbp-override-primary-border: 1px solid #2a4491;
+ --dbp-override-secondary-base: white;
+ --dbp-override-secondary-text: black;
+ --dbp-override-secondary-border: 1px solid black;
+ --dbp-override-info: #2a4491;
+ --dbp-override-success: #188018;
+ --dbp-override-warning-as-text: #c15500;
+ --dbp-override-warning: #f99a41;
+ --dbp-override-danger: #de3535;
+ --dbp-override-border: 1px solid black;
+ --dbp-override-border-radius: 0px;
+ --dbp-override-hover-base: black;
+ --dbp-override-hover-text: white;
+
+ }
+
+ .dark-theme{
+ --dbp-override-base: #151515;
+ --dbp-override-base-inverted: white;
+ --dbp-override-text: white;
+ --dbp-override-text-inverted: #151515;
+ --dbp-override-text-muted: #666666;
+ --dbp-override-accent: #c24f68;
+ --dbp-override-primary-base: #8ca4eb;
+ --dbp-override-primary-text: #151515;
+ --dbp-override-primary-border: 1px solid #8ca4eb;
+ --dbp-override-secondary-base: #151515;
+ --dbp-override-secondary-text: white;
+ --dbp-override-secondary-border: 1px solid white;
+ --dbp-override-info: #8ca4eb;
+ --dbp-override-success: #7acc79;
+ --dbp-override-warning-as-text: #f99a41;
+ --dbp-override-warning: #f99a41;
+ --dbp-override-danger: #de3535;
+ --dbp-override-border: 1px solid white;
+ --dbp-override-border-radius: 0px;
+ --dbp-override-hover-base: white;
+ --dbp-override-hover-text: #151515;
+
+ }
+</style>
+<script type="module" src="node_modules/@dbp-toolkit/theme-switcher/dist/dbp-theme-switcher.js"></script>
+```
+
+Or you can include the JS files directly via CDN:
+
+```html
+<script type="module" src="https://unpkg.com/@dbp-toolkit/theme-switcher@0.0.1/dist/theme-switcher.js"></script>
+```
+
+## Theme Switcher
+
+### Usage
+
+```html
+<dbp-theme-switcher></dbp-theme-switcher>
+```
+
+### Attributes
+
+- `lang` (optional, default: `de`): set to `de` or `en` for German or English
+ - example `<dbp-file-source lang="de"></dbp-file-source>`
+- `themes`: An array with objects with properties: `class` (defines the class name which is append to the body),
+ `icon` (defines the icon which is used for presenting the theme), `name` (defines the displayed name),
+ - if no or only one theme object is added, then the theme switcher would not be displayed.
+ - example `<dbp-theme-switcher
+ themes='[{"class": "light-theme", "icon": "sun", "name": "Light Mode"},
+ {"class": "dark-theme", "icon": "night", "name": "Dark Mode"}]'>
+ </dbp-theme-switcher>`
+- `darkModeThemeOverride` (optional)
+ - Options:
+ - `darkModeThemeOverride` not set: the theme switcher detects if the browser uses the dark mode and add
+ the `dark-theme` class automatically to the body if it is in the themes array and no user preference is set
+ - `darkModeThemeOverride` is set: the theme switcher not detects the browser color mode
+ - `darkModeThemeOverride` is set with a string: e.g.: `darkModeThemeOverride="dunkles-theme`, the theme switcher
+ detects if the browser uses the dark mode and handles the given string as dark mode class
+
+
+### Note
+Where to body is defined, there the classes had to be defined!
+
+## Local development
+
+```bash
+# get the source
+git clone git@gitlab.tugraz.at:dbp/web-components/toolkit.git
+cd toolkit/packages/theme-switcher
+
+# install dependencies
+yarn install
+
+# constantly build dist/bundle.js and run a local web-server on port 8002
+yarn run watch-local
+
+# build local packages in dist directory
+yarn run build
+```
+
+Jump to <http://localhost:8002> and you should get a demo page.
diff --git a/packages/theme-switcher/assets/favicon.ico b/packages/theme-switcher/assets/favicon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..50a2c752cd4560bf1a0aa11c63575777ab69a29b
Binary files /dev/null and b/packages/theme-switcher/assets/favicon.ico differ
diff --git a/packages/theme-switcher/i18next-scanner.config.js b/packages/theme-switcher/i18next-scanner.config.js
new file mode 100644
index 0000000000000000000000000000000000000000..aeb8fdb6532e6c951401ba91424e2a256353d391
--- /dev/null
+++ b/packages/theme-switcher/i18next-scanner.config.js
@@ -0,0 +1,16 @@
+module.exports = {
+ input: [
+ 'src/*.js',
+ ],
+ output: './',
+ options: {
+ debug: false,
+ removeUnusedKeys: true,
+ func: {list: ['i18n.t', '_i18n.t']},
+ lngs: ['en','de'],
+ resource: {
+ loadPath: 'src/i18n/{{lng}}/{{ns}}.json',
+ savePath: 'src/i18n/{{lng}}/{{ns}}.json'
+ },
+ },
+}
diff --git a/packages/theme-switcher/karma.conf.js b/packages/theme-switcher/karma.conf.js
new file mode 100644
index 0000000000000000000000000000000000000000..ca038af2286e2ad631f1c58d7216fbe4054e4199
--- /dev/null
+++ b/packages/theme-switcher/karma.conf.js
@@ -0,0 +1 @@
+module.exports = require('../../karma.common.conf.js');
diff --git a/packages/theme-switcher/package.json b/packages/theme-switcher/package.json
new file mode 100644
index 0000000000000000000000000000000000000000..51d74bc59a597b597d3e5c130716e31f79c6661e
--- /dev/null
+++ b/packages/theme-switcher/package.json
@@ -0,0 +1,58 @@
+{
+ "name": "@dbp-toolkit/theme-switcher",
+ "homepage": "https://gitlab.tugraz.at/dbp/web-components/toolkit/-/tree/master/packages/theme-switcher",
+ "version": "0.0.1",
+ "main": "src/index.js",
+ "license": "LGPL-2.1-or-later",
+ "repository": {
+ "type": "git",
+ "url": "https://gitlab.tugraz.at/dbp/web-components/toolkit.git",
+ "directory": "packages/theme-switcher"
+ },
+ "publishConfig": {
+ "registry": "https://registry.npmjs.org",
+ "access": "public"
+ },
+ "devDependencies": {
+ "@esm-bundle/chai": "^4.2.0",
+ "@rollup/plugin-commonjs": "^21.0.0",
+ "@rollup/plugin-json": "^4.0.2",
+ "@rollup/plugin-node-resolve": "^13.0.0",
+ "eslint": "^8.0.0",
+ "eslint-plugin-jsdoc": "^37.0.0",
+ "i18next-scanner": "^3.0.0",
+ "karma": "^6.0.0",
+ "karma-chrome-launcher": "^3.0.0",
+ "karma-firefox-launcher": "^2.1.0",
+ "karma-mocha": "^2.0.0",
+ "mocha": "^9.0.0",
+ "rollup": "^2.33.3",
+ "rollup-plugin-copy": "^3.1.0",
+ "rollup-plugin-delete": "^2.0.0",
+ "rollup-plugin-serve": "^1.0.1",
+ "rollup-plugin-terser": "^7.0.2"
+ },
+ "dependencies": {
+ "@dbp-toolkit/common": "^0.2.2",
+ "@open-wc/scoped-elements": "^2.0.0",
+ "i18next": "^21.4.2",
+ "jszip": "^3.5.0",
+ "lit": "^2.0.0",
+ "material-design-icons-svg": "^3.0.0"
+ },
+ "scripts": {
+ "clean": "rm dist/*",
+ "build": "npm run build-local",
+ "build-local": "rollup -c",
+ "build-dev": "rollup -c --environment BUILD:development",
+ "build-prod": "rollup -c --environment BUILD:production",
+ "build-demo": "rollup -c --environment BUILD:demo",
+ "build-test": "rollup -c --environment BUILD:test",
+ "i18next": "i18next-scanner",
+ "watch": "npm run watch-local",
+ "watch-local": "rollup -c --watch",
+ "watch-dev": "rollup -c --watch --environment BUILD:development",
+ "test": "npm run build-test && karma start --singleRun",
+ "lint": "eslint ."
+ }
+}
diff --git a/packages/theme-switcher/rollup.config.js b/packages/theme-switcher/rollup.config.js
new file mode 100644
index 0000000000000000000000000000000000000000..940641a06773f564ce042d646862b5e6cd36742e
--- /dev/null
+++ b/packages/theme-switcher/rollup.config.js
@@ -0,0 +1,47 @@
+import glob from 'glob';
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import copy from 'rollup-plugin-copy';
+import {terser} from "rollup-plugin-terser";
+import json from '@rollup/plugin-json';
+import serve from 'rollup-plugin-serve';
+import del from 'rollup-plugin-delete';
+import {getPackagePath, getDistPath} from '../../rollup.utils.js';
+import path from "path";
+
+const pkg = require('./package.json');
+const build = (typeof process.env.BUILD !== 'undefined') ? process.env.BUILD : 'local';
+console.log("build: " + build);
+
+let nextcloudBaseURL = 'https://cloud.tugraz.at';
+let nextcloudFileURL = nextcloudBaseURL + '/apps/files/?dir=';
+
+export default (async () => {
+ return {
+ input: (build !== 'test') ? ['src/demo.js', 'src/dbp-theme-switcher.js'] : glob.sync('test/**/*.js'),
+ output: {
+ dir: 'dist',
+ entryFileNames: '[name].js',
+ chunkFileNames: 'shared/[name].[hash].[format].js',
+ format: 'esm',
+ sourcemap: true
+ },
+ plugins: [
+ del({
+ targets: 'dist/*'
+ }),
+ resolve({browser: true}),
+ commonjs(),
+ json(),
+ (build !== 'local' && build !== 'test') ? terser() : false,
+ copy({
+ targets: [
+ {src: 'assets/index.html', dest: 'dist'},
+ {src: 'assets/favicon.ico', dest: 'dist'},
+ {src: await getPackagePath('@dbp-toolkit/common', 'assets/icons/*.svg'), dest: 'dist/' + await getDistPath('@dbp-toolkit/common', 'icons')},
+ ],
+ }),
+ (process.env.ROLLUP_WATCH === 'true') ? serve({contentBase: 'dist', host: '127.0.0.1', port: 8002}) : false
+ ]
+ };
+})();
\ No newline at end of file
diff --git a/packages/theme-switcher/src/dbp-theme-switcher.js b/packages/theme-switcher/src/dbp-theme-switcher.js
new file mode 100644
index 0000000000000000000000000000000000000000..5bec62ccb59830681282cdc4cea3e0c570dd85e3
--- /dev/null
+++ b/packages/theme-switcher/src/dbp-theme-switcher.js
@@ -0,0 +1,4 @@
+import * as commonUtils from "@dbp-toolkit/common/utils";
+import {ThemeSwitcher} from './theme-switcher';
+
+commonUtils.defineCustomElement('dbp-theme-switcher', ThemeSwitcher);
diff --git a/packages/theme-switcher/src/demo.js b/packages/theme-switcher/src/demo.js
new file mode 100644
index 0000000000000000000000000000000000000000..013fff6e74c3ab0778e47835afaaa5918e120538
--- /dev/null
+++ b/packages/theme-switcher/src/demo.js
@@ -0,0 +1,125 @@
+import {createInstance} from './i18n';
+import {html, LitElement} from 'lit';
+import {ScopedElementsMixin} from '@open-wc/scoped-elements';
+import {ThemeSwitcher} from "./theme-switcher";
+import * as commonUtils from '@dbp-toolkit/common/utils';
+
+export class ThemeSwitcherDemo extends ScopedElementsMixin(LitElement) {
+ constructor() {
+ super();
+ this._i18n = createInstance();
+ this.lang = this._i18n.language;
+ this.url = '';
+ this.selectedFiles = [];
+ this.selectedFilesCount = 0;
+ }
+
+ static get scopedElements() {
+ return {
+ 'dbp-theme-switcher': ThemeSwitcher,
+ };
+ }
+
+ static get properties() {
+ return {
+ lang: { type: String }
+ };
+ }
+
+ connectedCallback() {
+ super.connectedCallback();
+ }
+
+ update(changedProperties) {
+ changedProperties.forEach((oldValue, propName) => {
+ if (propName === "lang") {
+ this._i18n.changeLanguage(this.lang);
+ }
+ });
+
+ super.update(changedProperties);
+ }
+
+
+ render() {
+ const i18n = this._i18n;
+
+ return html`
+ <style>
+ .light-theme{
+ /* You must not fill out all vars, if they are not filled in, it would take an appropriate default value */
+ --dbp-override-base: white;
+ --dbp-override-base-inverted: black;
+ --dbp-override-text: black;
+ --dbp-override-text-inverted: white;
+ --dbp-override-text-muted: #767676;
+ --dbp-override-accent: #c24f68;
+ --dbp-override-primary-base: #2a4491;
+ --dbp-override-primary-text: white;
+ --dbp-override-primary-border: 1px solid #2a4491;
+ --dbp-override-secondary-base: white;
+ --dbp-override-secondary-text: black;
+ --dbp-override-secondary-border: 1px solid black;
+ --dbp-override-info: #2a4491;
+ --dbp-override-success: #188018;
+ --dbp-override-warning-as-text: #c15500;
+ --dbp-override-warning: #f99a41;
+ --dbp-override-danger: #de3535;
+ --dbp-override-border: 1px solid black;
+ --dbp-override-border-radius: 0px;
+
+ /* Remove hover vars if you don't want a hover effect */
+
+ --dbp-override-hover-base: black;
+ --dbp-override-hover-text: white;
+
+ }
+
+ .dark-theme{
+ /* If you don't want to use an additional theme, then delete the "themes" attribute */
+ /* You have to fill out all vars, if you want to use the dark theme, the default values would be the light theme. */
+
+ --dbp-override-base: #151515;
+ --dbp-override-base-inverted: white;
+ --dbp-override-text: white;
+ --dbp-override-text-inverted: #151515;
+ --dbp-override-text-muted: #666666;
+ --dbp-override-accent: #c24f68;
+ --dbp-override-primary-base: #8ca4eb;
+ --dbp-override-primary-text: #151515;
+ --dbp-override-primary-border: 1px solid #8ca4eb;
+ --dbp-override-secondary-base: #151515;
+ --dbp-override-secondary-text: white;
+ --dbp-override-secondary-border: 1px solid white;
+ --dbp-override-info: #8ca4eb;
+ --dbp-override-success: #7acc79;
+ --dbp-override-warning-as-text: #f99a41;
+ --dbp-override-warning: #f99a41;
+ --dbp-override-danger: #de3535;
+ --dbp-override-border: 1px solid white;
+ --dbp-override-border-radius: 0px;
+
+
+ /* Remove hover vars if you don't want a hover effect */
+
+ --dbp-override-hover-base: white;
+ --dbp-override-hover-text: #151515;
+
+ }
+ </style>
+
+ <section class="section">
+ <div class="content">
+ <h1 class="title">${i18n.t('demo-title')}</h1>
+ <p>${i18n.t('intro')}</p>
+ </div>
+ <div class="content">
+ <dbp-theme-switcher themes='[{"class": "light-theme", "icon": "sun", "name": "Light Mode"}, {"class": "dark-theme", "icon": "night", "name": "Dark Mode"}]'></dbp-theme-switcher>
+ </div>
+ </section>
+ `;
+ }
+
+}
+
+commonUtils.defineCustomElement('dbp-theme-switcher-demo', ThemeSwitcherDemo);
diff --git a/packages/theme-switcher/src/i18n.js b/packages/theme-switcher/src/i18n.js
new file mode 100644
index 0000000000000000000000000000000000000000..975c1993e2a567940c74f8d957a6b2a018125548
--- /dev/null
+++ b/packages/theme-switcher/src/i18n.js
@@ -0,0 +1,8 @@
+import {createInstance as _createInstance} from '@dbp-toolkit/common/i18next.js';
+
+import de from './i18n/de/translation.json';
+import en from './i18n/en/translation.json';
+
+export function createInstance() {
+ return _createInstance({en: en, de: de}, 'de', 'en');
+}
\ No newline at end of file
diff --git a/packages/theme-switcher/src/i18n/de/translation.json b/packages/theme-switcher/src/i18n/de/translation.json
new file mode 100644
index 0000000000000000000000000000000000000000..c25326d6c88fc436bcad450e2551a007bee3b8a9
--- /dev/null
+++ b/packages/theme-switcher/src/i18n/de/translation.json
@@ -0,0 +1,5 @@
+{
+ "demo-title": "Theme Switcher Demo",
+ "intro": "Mit dem Theme-Switcher können Sie zwischen unterschiedlichen Farb-Themes umschalten.",
+ "color-mode": "Farbmodus ändern"
+}
diff --git a/packages/theme-switcher/src/i18n/en/translation.json b/packages/theme-switcher/src/i18n/en/translation.json
new file mode 100644
index 0000000000000000000000000000000000000000..5822689e39cd82942553e9f33921859b0adb1a8f
--- /dev/null
+++ b/packages/theme-switcher/src/i18n/en/translation.json
@@ -0,0 +1,5 @@
+{
+ "demo-title": "Theme Switcher Demo",
+ "intro": "With the theme-switcher you can switch between multiple themes.",
+ "color-mode": "Farbmodus ändern"
+}
diff --git a/packages/theme-switcher/src/index.js b/packages/theme-switcher/src/index.js
new file mode 100644
index 0000000000000000000000000000000000000000..1b7dbe735cce4395a9df25651313183411c765b3
--- /dev/null
+++ b/packages/theme-switcher/src/index.js
@@ -0,0 +1 @@
+export {ThemeSwitcher} from './theme-switcher';
\ No newline at end of file
diff --git a/packages/theme-switcher/src/theme-switcher.js b/packages/theme-switcher/src/theme-switcher.js
new file mode 100644
index 0000000000000000000000000000000000000000..691cbc8ba08091419cf7d9308e2401af7c2deabf
--- /dev/null
+++ b/packages/theme-switcher/src/theme-switcher.js
@@ -0,0 +1,249 @@
+import {createInstance} from './i18n.js';
+import {html, css} from 'lit';
+import {ScopedElementsMixin} from '@open-wc/scoped-elements';
+import {AdapterLitElement, Icon} from '@dbp-toolkit/common';
+import * as commonStyles from '@dbp-toolkit/common/styles';
+import {classMap} from 'lit/directives/class-map.js';
+
+
+export class ThemeSwitcher extends ScopedElementsMixin(AdapterLitElement) {
+ constructor() {
+ super();
+
+ this._i18n = createInstance();
+ this.lang = this._i18n.language;
+ this.themes = [];
+ this.boundCloseAdditionalMenuHandler = this.hideModeMenu.bind(this);
+ this.detectBrowserDarkMode = false;
+ this.darkModeClass = "dark-theme";
+ }
+
+ static get properties() {
+ return {
+ ...super.properties,
+ lang: { type: String },
+ themes: { type: Array, attribute: "themes" },
+ darkModeThemeOverride: {type: String, attribute: "dark-mode-theme-override"}
+ };
+ }
+
+ static get scopedElements() {
+ return {
+ 'dbp-icon': Icon
+ };
+ }
+
+
+ update(changedProperties) {
+ changedProperties.forEach((oldValue, propName) => {
+ if (propName === "lang") {
+ this._i18n.changeLanguage(this.lang);
+ }
+ });
+ super.update(changedProperties);
+ }
+
+ connectedCallback() {
+ super.connectedCallback();
+ this.updateComplete.then(() => {
+ if (typeof this.darkModeThemeOverride === "undefined") {
+ this.detectBrowserDarkMode = true;
+ } else if ( this.darkModeThemeOverride === "") {
+ this.detectBrowserDarkMode = false;
+ } else {
+ this.detectBrowserDarkMode = true;
+ this.darkModeClass = this.darkModeThemeOverride;
+ }
+ this.loadTheme("light-theme");
+ this.detectInitialMode();
+ });
+
+ }
+
+ detectInitialMode() {
+ //look for saved modes
+ let prefMode = localStorage.getItem('prefered-color-mode');
+ if (prefMode) {
+ // search for prefered mode
+ const theme = this.themes.find(theme => theme.class === prefMode);
+
+ if (theme) {
+ this.loadTheme(theme.class);
+ }
+ return;
+ }
+
+ if (this.detectBrowserDarkMode) {
+ //look for browser mode
+ const useDark = window.matchMedia("(prefers-color-scheme: dark)");
+ if (useDark.matches) {
+ // search for dark mode
+ const theme = this.themes.find(theme => theme.class === this.darkModeClass);
+
+ if (theme) {
+ this.loadTheme(theme.class);
+ }
+ }
+ }
+ }
+
+ toggleModeMenu() {
+ const button = this.shadowRoot.querySelector(".mode-button");
+ if(!button) {
+ return;
+ }
+ if (button.classList.contains("active"))
+ button.classList.remove("active");
+ else
+ button.classList.add("active");
+ const menu = this.shadowRoot.querySelector("ul.extended-menu");
+ const menuStart = this.shadowRoot.querySelector(".mode-button");
+ if (menu === null || menuStart === null) {
+ return;
+ }
+
+ menu.classList.toggle('hidden');
+
+ if (!menu.classList.contains('hidden')) { // add event listener for clicking outside of menu
+ document.addEventListener('click', this.boundCloseAdditionalMenuHandler);
+ this.initateOpenAdditionalMenu = true;
+ }
+ else {
+ document.removeEventListener('click', this.boundCloseAdditionalMenuHandler);
+ }
+ }
+
+ hideModeMenu() {
+ if (this.initateOpenAdditionalMenu) {
+ this.initateOpenAdditionalMenu = false;
+ return;
+ }
+
+ const menu = this.shadowRoot.querySelector("ul.extended-menu");
+ if (menu && !menu.classList.contains('hidden'))
+ this.toggleModeMenu();
+ }
+
+ loadTheme(themeName) {
+ const button = this.shadowRoot.querySelector(".button-" + themeName);
+ const otherButtons = this.shadowRoot.querySelectorAll(".button-theme");
+ const body = this.shadowRoot.host.getRootNode({composed: true}).body;
+
+ if (button === null || otherButtons.length === 0 || body === null ) {
+ return;
+ }
+
+ otherButtons.forEach(button => button.classList.remove("active"));
+ button.classList.add("active");
+
+ if (!body.classList.contains(themeName)) {
+ this.themes.forEach(theme => {
+ body.classList.remove(theme.class);
+ });
+
+ body.classList.add(themeName);
+ }
+ }
+
+ saveTheme(themeName) {
+ //set active state
+ const browserModeDark = window.matchMedia("(prefers-color-scheme: dark)");
+ const browserModeLight = window.matchMedia("(prefers-color-scheme: light)");
+
+ if (themeName === "light-theme" && browserModeLight.matches) {
+ localStorage.removeItem('prefered-color-mode');
+ } else if (themeName === this.darkModeClass && browserModeDark.matches) {
+ localStorage.removeItem('prefered-color-mode');
+ } else {
+ localStorage.setItem('prefered-color-mode', themeName);
+ }
+ }
+
+ static get styles() {
+ return css`
+ ${commonStyles.getThemeCSS()}
+ ${commonStyles.getGeneralCSS()}
+ ${commonStyles.getButtonCSS()}
+
+
+ mode-button, button.button {
+ border: none;
+ }
+
+ .active, .extended-menu li a.active dbp-icon {
+ color: var(--dbp-accent);
+ }
+
+ .active {
+ font-weight: bolder;
+ }
+
+ a:hover:not(.active) , .extended-menu li a:hover:not(.active) {
+ color: var(--dbp-hover-text);
+ background-color: var(--dbp-hover-base);
+ transition: none;
+ }
+
+ a {
+ padding: 0.3em;
+ display: inline-block;
+ text-decoration: none;
+ transition: background-color 0.15s, color 0.15s;
+ color: var(--dbp-text);
+ }
+
+ .extended-menu {
+ list-style: none;
+ border: var(--dbp-border);
+ position: absolute;
+ background-color: var(--dbp-base);
+ z-index: 1000;
+ border-radius: var(--dbp-border-radius);
+ }
+
+ .extended-menu li {
+
+ text-align: left;
+ min-width: 160px;
+ }
+
+ .extended-menu li a {
+ white-space: nowrap;
+ overflow: hidden;
+ text-overflow: ellipsis;
+ padding: 12px 15px;
+ w1idth: 100%;
+ box-sizing: border-box;
+ text-align: left;
+ color: var(--dbp-text);
+ background: none;
+ display: block
+ }
+
+ .icon {
+ margin-right: 10px;
+ }
+
+ `;
+ }
+
+ render() {
+ const i18n = this._i18n;
+
+ return html`
+ <div class="${classMap({hidden: this.themes.length <= 1})}">
+ <a class="mode-button" title="${i18n.t('color-mode')}"
+ @click="${() => {this.toggleModeMenu();}}"><dbp-icon name="contrast"></dbp-icon></a>
+ <ul class='extended-menu hidden'>
+ ${this.themes.map(theme => html`
+ <li class="" id="${theme.class}">
+ <a class="button-theme button-${theme.class}" @click="${() => {this.loadTheme(theme.class); this.saveTheme(theme.class);}}" title="${theme.name}">
+ <dbp-icon class="icon" name="${theme.icon}"></dbp-icon> ${theme.name}
+ </a>
+ </li>
+ `)}
+ </ul>
+ </div>
+ `;
+ }
+}
\ No newline at end of file
diff --git a/packages/theme-switcher/test/unit.js b/packages/theme-switcher/test/unit.js
new file mode 100644
index 0000000000000000000000000000000000000000..d235d545b1b3c652021b24f6493b752ff40cef0b
--- /dev/null
+++ b/packages/theme-switcher/test/unit.js
@@ -0,0 +1,40 @@
+import {assert} from '@esm-bundle/chai';
+
+import '../src/dbp-theme-switcher';
+import '../src/demo';
+
+suite('dbp-theme-switcher basics', () => {
+ let node;
+
+ setup(async () => {
+ node = document.createElement('dbp-theme-switcher');
+ document.body.appendChild(node);
+ await node.updateComplete;
+ });
+
+ teardown(() => {
+ node.remove();
+ });
+
+ test('should render', () => {
+ assert.isNotNull(node.shadowRoot);
+ });
+});
+
+suite('dbp-theme-switcher demo', () => {
+ let node;
+
+ setup(async () => {
+ node = document.createElement('dbp-theme-switcher-demo');
+ document.body.appendChild(node);
+ await node.updateComplete;
+ });
+
+ teardown(() => {
+ node.remove();
+ });
+
+ test('should render', () => {
+ assert.isNotNull(node.shadowRoot);
+ });
+});
diff --git a/toolkit-showcase/assets/theme-switcher.metadata.json b/toolkit-showcase/assets/theme-switcher.metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..423846abe3658090047cfa73c0d2046e481ec52e
--- /dev/null
+++ b/toolkit-showcase/assets/theme-switcher.metadata.json
@@ -0,0 +1,18 @@
+{
+ "element": "dbp-theme-switcher-demo-activity",
+ "module_src": "dbp-theme-switcher-demo-activity.js",
+ "routing_name": "theme-switcher",
+ "name": {
+ "de": "Theme-Switcher Komponente",
+ "en": "Theme-switcher component"
+ },
+ "short_name": {
+ "de": "Theme-Switcher Komponente",
+ "en": "Theme-switcher component"
+ },
+ "description": {
+ "de": "Theme Switcher Web Komponente",
+ "en": "Theme-Switcher web component"
+ },
+ "subscribe": "lang"
+}
diff --git a/toolkit-showcase/src/dbp-theme-switcher-demo-activity.js b/toolkit-showcase/src/dbp-theme-switcher-demo-activity.js
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391