feat: use-break-point-value hook

Author: Viraj-10

example/storybook-nativewind/src/hooks/use-break-point-value.ts

@@ -0,0 +1,99 @@
+import { Dimensions, useWindowDimensions } from 'react-native';
+import { useEffect, useState } from 'react';
+
+import DefaultTheme from 'tailwindcss/defaultConfig';
+import resolveConfig from 'tailwindcss/resolveConfig';
+
+const TailwindTheme = resolveConfig(DefaultTheme);
+const screenSize = TailwindTheme.theme.screens;
+
+type breakpoints = keyof typeof screenSize | 'default';
+
+type BreakPointValue = Partial<Record<breakpoints, any>>;
+
+const resolveScreenWidth: any = {
+  default: 0,
+};
+
+Object.entries(screenSize).forEach(([key, value]) => {
+  resolveScreenWidth[key] = parseInt(value.replace('px', ''));
+});
+
+export const getBreakPointValue = (values: any, width: any) => {
+  if (typeof values !== 'object') return values;
+
+  let finalBreakPointResolvedValue: any;
+  const mediaQueriesBreakpoints: any = [
+    {
+      key: 'default',
+      breakpoint: 0,
+      isValid: true,
+    },
+  ];
+  Object.keys(resolveScreenWidth).forEach((key) => {
+    const isValid = isValidBreakpoint(resolveScreenWidth[key], width);
+
+    mediaQueriesBreakpoints.push({
+      key: key,
+      breakpoint: resolveScreenWidth[key],
+      isValid: isValid,
+    });
+  });
+
+  mediaQueriesBreakpoints.sort((a: any, b: any) => a.breakpoint - b.breakpoint);
+
+  mediaQueriesBreakpoints.forEach((breakpoint: any, index: any) => {
+    breakpoint.value = values.hasOwnProperty(breakpoint.key)
+      ? // @ts-ignore
+        values[breakpoint.key]
+      : mediaQueriesBreakpoints[index - 1]?.value ||
+        mediaQueriesBreakpoints[0]?.value;
+  });
+
+  const lastValidObject = getLastValidObject(mediaQueriesBreakpoints);
+
+  if (!lastValidObject) {
+    finalBreakPointResolvedValue = values;
+  } else {
+    finalBreakPointResolvedValue = lastValidObject?.value;
+  }
+  return finalBreakPointResolvedValue;
+};
+
+export function useBreakpointValue(values: BreakPointValue) {
+  const { width } = useWindowDimensions();
+
+  const [currentBreakPointValue, setCurrentBreakPointValue] = useState(null);
+
+  useEffect(() => {
+    if (typeof values === 'object') {
+      const finalBreakPointResolvedValue = getBreakPointValue(values, width);
+      setCurrentBreakPointValue(finalBreakPointResolvedValue);
+    }
+  }, [values, width]);
+
+  if (typeof values !== 'object') return values;
+
+  return currentBreakPointValue;
+}
+
+export function isValidBreakpoint(
+  breakPointWidth: any,
+  width: any = Dimensions.get('window')?.width
+) {
+  const windowWidth = width;
+
+  if (windowWidth >= breakPointWidth) {
+    return true;
+  }
+  return false;
+}
+
+function getLastValidObject(mediaQueries: any) {
+  for (let i = mediaQueries.length - 1; i >= 0; i--) {
+    if (mediaQueries[i].isValid) {
+      return mediaQueries[i];
+    }
+  }
+  return null; // No valid object found
+}