1 files changed, 85 insertions, 0 deletions
diff --git a/src/components/organisms/forms/prism-theme-toggle/prism-theme-toggle.tsx b/src/components/organisms/forms/prism-theme-toggle/prism-theme-toggle.tsx
new file mode 100644
index 0000000..0e1649b
--- /dev/null
+++ b/src/components/organisms/forms/prism-theme-toggle/prism-theme-toggle.tsx
@@ -0,0 +1,85 @@
+import { ChangeEvent, FC } from 'react';
+import { useIntl } from 'react-intl';
+import { type PrismTheme, usePrismTheme } from '../../../../utils/providers';
+import { Legend, Moon, Sun } from '../../../atoms';
+import { Switch, SwitchOption, SwitchProps } from '../../../molecules';
+
+export type PrismThemeToggleProps = Omit<
+  SwitchProps,
+  'isInline' | 'items' | 'name' | 'onSwitch' | 'value'
+>;
+
+/**
+ * PrismThemeToggle component
+ *
+ * Render a Toggle component to set code blocks theme.
+ */
+export const PrismThemeToggle: FC<PrismThemeToggleProps> = (props) => {
+  const intl = useIntl();
+  const { theme, setTheme, resolvedTheme } = usePrismTheme();
+
+  /**
+   * Check if the resolved or chosen theme is dark theme.
+   *
+   * @returns {boolean} True if it is dark theme.
+   */
+  const isDarkTheme = (prismTheme?: PrismTheme): boolean => {
+    if (prismTheme === 'system') return resolvedTheme === 'dark';
+    return prismTheme === 'dark';
+  };
+
+  const updateTheme = (e: ChangeEvent<HTMLInputElement>) => {
+    setTheme(e.target.value === 'light' ? 'light' : 'dark');
+  };
+
+  const themeLabel = intl.formatMessage({
+    defaultMessage: 'Code blocks:',
+    description: 'PrismThemeToggle: theme label',
+    id: 'ftXN+0',
+  });
+  const lightThemeLabel = intl.formatMessage({
+    defaultMessage: 'Light theme',
+    description: 'PrismThemeToggle: light theme label',
+    id: 'tsWh8x',
+  });
+  const darkThemeLabel = intl.formatMessage({
+    defaultMessage: 'Dark theme',
+    description: 'PrismThemeToggle: dark theme label',
+    id: 'og/zWL',
+  });
+
+  const options: [SwitchOption, SwitchOption] = [
+    {
+      id: 'code-blocks-light',
+      label: (
+        <>
+          <span className="screen-reader-text">{lightThemeLabel}</span>
+          <Sun />
+        </>
+      ),
+      value: 'light',
+    },
+    {
+      id: 'code-blocks-dark',
+      label: (
+        <>
+          <span className="screen-reader-text">{darkThemeLabel}</span>
+          <Moon />
+        </>
+      ),
+      value: 'dark',
+    },
+  ];
+
+  return (
+    <Switch
+      {...props}
+      isInline
+      items={options}
+      legend={<Legend>{themeLabel}</Legend>}
+      name="code-blocks"
+      onSwitch={updateTheme}
+      value={isDarkTheme(theme) ? 'dark' : 'light'}
+    />
+  );
+};