Theme changing. Simple routing

client/src/App.css

@@ -1,38 +0,0 @@
-.App {
-  text-align: center;
-}
-
-.App-logo {
-  height: 40vmin;
-  pointer-events: none;
-}
-
-@media (prefers-reduced-motion: no-preference) {
-  .App-logo {
-    animation: App-logo-spin infinite 20s linear;
-  }
-}
-
-.App-header {
-  background-color: #282c34;
-  min-height: 100vh;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  font-size: calc(10px + 2vmin);
-  color: white;
-}
-
-.App-link {
-  color: #61dafb;
-}
-
-@keyframes App-logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
-}

client/src/App.module.css

@@ -0,0 +1,19 @@
+.SettingsButton {
+  width: 35px;
+  height: 35px;
+  background-color: var(--color-accent);
+  border-radius: 50%;
+  position: absolute;
+  bottom: 10px;
+  left: 10px;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  opacity: 0.25;
+  transition: all 0.3s;
+}
+
+.SettingsButton:hover {
+  cursor: pointer;
+  opacity: 1;
+}

client/src/App.tsx

@@ -1,10 +1,23 @@
-import './App.css';
-import Themer from './components/Themer/Themer';
+import { BrowserRouter, Route, Switch, Link } from 'react-router-dom';
 
+import classes from './App.module.css';
+
+import Apps from './components/Apps/Apps';
+import Settings from './components/Settings/Settings';
+
+import Icon from './components/UI/Icon/Icon';
 
 const App = (): JSX.Element => {
   return (
-    <Themer />
+    <BrowserRouter>
+      <Switch>
+        <Route exact path='/' component={Apps} />
+        <Route exact path='/settings' component={Settings} />
+      </Switch>
+      <Link to='/settings' className={classes.SettingsButton}>
+        <Icon icon='mdiCog' />
+      </Link>
+    </BrowserRouter>
   );
 }
 

client/src/components/Apps/Apps.tsx

@@ -0,0 +1,17 @@
+import { Link } from 'react-router-dom';
+
+import classes from './Apps.module.css';
+
+import { Container } from '../UI/Layout/Layout';
+import Headline from '../UI/Headline/Headline';
+
+const Apps = (): JSX.Element => {
+  return (
+    <Container>
+      <Headline title='Welcome' />
+      <Link to='/settings'>settings</Link>
+    </Container>
+  )
+}
+
+export default Apps;

client/src/components/Settings/Settings.tsx

@@ -0,0 +1,15 @@
+import { Link } from 'react-router-dom';
+
+import Themer from '../Themer/Themer';
+
+const Settings = (): JSX.Element => {
+  return (
+    <div>
+      <h1>settings</h1>
+      <Link to='/'>Home</Link>
+      <Themer />
+    </div>
+  )
+}
+
+export default Settings;

client/src/components/Themer/ThemePreview.module.css

@@ -0,0 +1,27 @@
+.ThemePreview {
+  width: 100%;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+}
+
+.ThemePreview:hover {
+  cursor: pointer;
+}
+
+.ThemePreview p {
+  text-transform: capitalize;
+  margin: 8px 0;
+  /* align-self: flex-start; */
+}
+
+.ColorsPreview {
+  display: flex;
+  border: 1px solid silver;
+}
+
+.ColorPreview {
+  width: 50px;
+  height: 50px;
+}

client/src/components/Themer/ThemePreview.tsx

@@ -1,10 +1,29 @@
 import { Theme } from '../../interfaces/Theme';
+import classes from './ThemePreview.module.css';
 
-const ThemePreview = (theme: Theme): JSX.Element => {
+interface ComponentProps {
+  theme: Theme;
+  applyTheme: Function;
+}
+
+const ThemePreview = (props: ComponentProps): JSX.Element => {
   return (
-    <div>
-      <p>Theme: {theme.name}</p>
-      <p>{theme.colors.background}</p>
+    <div className={classes.ThemePreview} onClick={() => props.applyTheme(props.theme.name)}>
+      <div className={classes.ColorsPreview}>
+        <div
+          className={classes.ColorPreview}
+          style={{ backgroundColor: props.theme.colors.background }}
+        ></div>
+        <div
+          className={classes.ColorPreview}
+          style={{ backgroundColor: props.theme.colors.primary }}
+        ></div>
+        <div
+          className={classes.ColorPreview}
+          style={{ backgroundColor: props.theme.colors.accent }}
+        ></div>
+      </div>
+      <p>{props.theme.name}</p>
     </div>
   )
 }

client/src/components/Themer/Themer.module.css

@@ -0,0 +1,12 @@
+.ThemerGrid {
+  width: 100%;
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  grid-auto-rows: 100px;
+}
+
+@media (min-width: 900px) {
+  .ThemerGrid {
+    grid-template-columns: 1fr 1fr 1fr;
+  }
+}

client/src/components/Themer/Themer.tsx

@@ -1,13 +1,44 @@
+import { useEffect } from 'react';
+
+import classes from './Themer.module.css';
+
 import { themes } from './themes.json';
 import { Theme } from '../../interfaces/Theme';
 import ThemePreview from './ThemePreview';
+import { Container } from '../UI/Layout/Layout';
+import Headline from '../UI/Headline/Headline';
 
 const Themer = (): JSX.Element => {
+  useEffect((): void => {
+    if (localStorage.theme) {
+      applyTheme(localStorage.theme);
+    }
+  }, []);
+
+  const applyTheme = (themeName: string): void => {
+    const newTheme = themes.find((theme: Theme) => theme.name === themeName);
+    
+    if (newTheme) {
+      for (const [key, value] of Object.entries(newTheme.colors)) {
+        document.body.style.setProperty(`--color-${key}`, value);
+      }
+      localStorage.setItem('theme', themeName);
+    }
+  }
+
   return (
-    <div>
-      <h1>Themes</h1>
-      {themes.map((theme: Theme): JSX.Element => <ThemePreview name={theme.name} colors={theme.colors} />)}
-    </div>
+    <Container>
+      <div>
+        <Headline
+          title='Themes'
+          subtitle='Select new theme by clicking on it'
+        />
+        <div className={classes.ThemerGrid}>
+          {themes.map((theme: Theme): JSX.Element => <ThemePreview theme={theme} applyTheme={applyTheme} />)}
+        </div>
+      </div>
+    </Container>
+
   )
 }
 

client/src/components/UI/Headline/Headline.module.css

@@ -0,0 +1,7 @@
+.HeadlineTitle {
+  color: var(--color-primary);
+}
+
+.HeadlineSubtitle {
+  color: var(--color-primary);
+}

client/src/components/UI/Headline/Headline.tsx

@@ -0,0 +1,18 @@
+import { Fragment } from 'react';
+import classes from './Headline.module.css';
+
+interface ComponentProps {
+  title: string;
+  subtitle?: string;
+}
+
+const Headline = (props: ComponentProps): JSX.Element => {
+  return (
+    <Fragment>
+      <h2 className={classes.HeadlineTitle}>{props.title}</h2>
+      {props.subtitle && <p className={classes.HeadlineSubtitle}>{props.subtitle}</p>}
+    </Fragment>
+  )
+}
+
+export default Headline;

client/src/components/UI/Icon/Icon.module.css

@@ -0,0 +1,4 @@
+.Icon {
+  color: var(--color-primary);
+  width: 90%;
+}

client/src/components/UI/Icon/Icon.tsx

@@ -0,0 +1,25 @@
+import classes from './Icon.module.css';
+
+import { Icon as MDIcon } from '@mdi/react';
+
+interface ComponentProps {
+  icon: string;
+}
+
+const Icon = (props: ComponentProps): JSX.Element => {
+  const MDIcons = require('@mdi/js');
+  let iconPath = MDIcons[props.icon];
+
+  if (!iconPath) {
+    console.log('icon not found');
+    iconPath = MDIcons.mdiCancel;
+  }
+
+  return (
+    <MDIcon className={classes.Icon}
+      path={iconPath}
+    />
+    )
+}
+
+export default Icon;

client/src/components/UI/Layout/Layout.module.css

@@ -0,0 +1,4 @@
+.Container {
+  width: 100%;
+  padding: var(--space-p-x);
+}

client/src/components/UI/Layout/Layout.tsx

@@ -0,0 +1,9 @@
+import classes from './Layout.module.css';
+
+export const Container = (props: any): JSX.Element => {
+  return (
+    <div className={classes.Container}>
+      {props.children}
+    </div>
+  )
+}

client/src/index.css

@@ -1,13 +1,16 @@
-body {
+* {
   margin: 0;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
-    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
-    sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
+  padding: 0;
+  box-sizing: border-box;
 }
 
-code {
-  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
-    monospace;
-}
+body {
+  --color-background: #2B2C56;
+  --color-primary: #EFF1FC;
+  --color-accent: #6677EB;
+
+  --space-p-x: 16px;
+
+  background-color: var(--color-background);
+  font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, Roboto, sans-serif;
+}