Switch component with storybook and testing

2025-10-14 17:27:09 -06:00
parent 460237fc66
commit 9de194bfc0
8 changed files with 908 additions and 262 deletions
@@ -0,0 +1,163 @@
+import React, { memo, useCallback, useId, forwardRef } from "react";
+
+const Switch = memo(
+  forwardRef((props, ref) => {
+    const {
+      checked = false,
+      onChange,
+      onFocus,
+      onBlur,
+      state = "default",
+      label,
+      className = "",
+      ...rest
+    } = props;
+
+    const switchId = useId();
+
+    const handleClick = useCallback(
+      (e) => {
+        if (onChange) {
+          onChange(e);
+        }
+      },
+      [onChange]
+    );
+
+    const handleKeyDown = useCallback(
+      (e) => {
+        if (e.key === "Enter" || e.key === " ") {
+          e.preventDefault();
+          if (onChange) {
+            onChange(e);
+          }
+        }
+      },
+      [onChange]
+    );
+
+    const handleFocus = useCallback(
+      (e) => {
+        if (onFocus) {
+          onFocus(e);
+        }
+      },
+      [onFocus]
+    );
+
+    const handleBlur = useCallback(
+      (e) => {
+        if (onBlur) {
+          onBlur(e);
+        }
+      },
+      [onBlur]
+    );
+
+    // Switch track styles based on checked state
+    const getTrackStyles = useCallback(() => {
+      return checked
+        ? "bg-[var(--color-surface-inverse-tertiary)]"
+        : "bg-[var(--color-surface-default-tertiary)]";
+    }, [checked]);
+
+    // Switch thumb styles based on checked state
+    const getThumbStyles = useCallback(() => {
+      return "bg-[var(--color-gray-000)]";
+    }, []);
+
+    // Focus styles
+    const getFocusStyles = useCallback(() => {
+      if (state === "focus") {
+        return "shadow-[0_0_5px_3px_#3281F8] rounded-full";
+      }
+      return "";
+    }, [state]);
+
+    const trackStyles = getTrackStyles();
+    const thumbStyles = getThumbStyles();
+    const focusStyles = getFocusStyles();
+
+    const switchClasses = `
+      relative
+      inline-flex
+      items-center
+      cursor-pointer
+      transition-all
+      duration-200
+      focus:outline-none
+      focus-visible:shadow-[0_0_5px_3px_#3281F8]
+      focus-visible:rounded-full
+      ${focusStyles}
+      ${className}
+    `
+      .trim()
+      .replace(/\s+/g, " ");
+
+    const trackClasses = `
+      ${trackStyles}
+      w-[40px]
+      h-[24px]
+      rounded-full
+      transition-all
+      duration-200
+      flex
+      items-center
+      ${checked ? "justify-end" : "justify-start"}
+      p-[2px]
+    `
+      .trim()
+      .replace(/\s+/g, " ");
+
+    const thumbClasses = `
+      ${thumbStyles}
+      w-[var(--measures-sizing-020)]
+      h-[var(--measures-sizing-020)]
+      rounded-[var(--measures-radius-xlarge)]
+      transition-all
+      duration-200
+      shadow-sm
+    `
+      .trim()
+      .replace(/\s+/g, " ");
+
+    const labelClasses = `
+      ml-[var(--measures-spacing-008)]
+      font-inter
+      font-normal
+      text-[14px]
+      leading-[20px]
+      text-[var(--color-content-default-primary)]
+    `
+      .trim()
+      .replace(/\s+/g, " ");
+
+    return (
+      <div className="flex items-center">
+        <button
+          ref={ref}
+          id={switchId}
+          type="button"
+          role="switch"
+          aria-checked={checked}
+          aria-label={label || "Toggle switch"}
+          onClick={handleClick}
+          onKeyDown={handleKeyDown}
+          onFocus={handleFocus}
+          onBlur={handleBlur}
+          className={switchClasses}
+          {...rest}
+        >
+          <div className={trackClasses}>
+            <div className={thumbClasses} />
+          </div>
+        </button>
+        {label && <span className={labelClasses}>{label}</span>}
+      </div>
+    );
+  })
+);
+
+Switch.displayName = "Switch";
+
+export default Switch;