Add fit and aspect props (#16)

* Add `fit` and `aspect` props

src/components/image.client.tsx

@@ -1,8 +1,15 @@
 "use client";
 
-import React, { useCallback, useRef, forwardRef } from "react";
+import React, {
+  useCallback,
+  useRef,
+  forwardRef,
+  type CSSProperties,
+} from "react";
 import type { StoredObject } from "ronin/types";
 
+const supportedFitValues = ["fill", "contain", "cover"];
+
 export interface ImageProps {
   /**
    * Defines text that can replace the image in the page.
@@ -35,6 +42,14 @@ export interface ImageProps {
    * a unit.
    */
   height?: number;
+  /**
+   * Specifies how the image should be resized to fit its container.
+   */
+  fit?: CSSProperties["objectFit"];
+  /**
+   * The aspect ratio of the image. Can be "square", "video", or a custom string.
+   */
+  aspect?: "square" | "video" | string;
   /**
    * Indicates how the browser should load the image.
    *
@@ -54,7 +69,7 @@ export interface ImageProps {
   /**
    * The inline style for the image container (not the image itself).
    */
-  style?: React.CSSProperties;
+  style?: CSSProperties;
 }
 
 const Image = forwardRef<HTMLDivElement, ImageProps>(
@@ -65,6 +80,8 @@ const Image = forwardRef<HTMLDivElement, ImageProps>(
       size: defaultSize,
       width: defaultWidth,
       height: defaultHeight,
+      fit = "cover",
+      aspect,
       quality,
       loading,
       style,
@@ -79,6 +96,25 @@ const Image = forwardRef<HTMLDivElement, ImageProps>(
     const width = defaultSize || defaultWidth;
     const height = defaultSize || defaultHeight;
 
+    const onLoad = useCallback(() => {
+      const duration = Date.now() - renderTime.current;
+      const threshold = 150;
+
+      // Fade in and gradually reduce blur of the real image if loading takes
+      // longer than the specified threshold.
+      if (duration > threshold) {
+        imageElement.current?.animate(
+          [
+            { filter: "blur(4px)", opacity: 0 },
+            { filter: "blur(0px)", opacity: 1 },
+          ],
+          {
+            duration: 200,
+          },
+        );
+      }
+    }, []);
+
     if (!height && !width)
       throw new Error(
         "Either `width`, `height`, or `size` must be defined for `Image`.",
@@ -93,12 +129,14 @@ const Image = forwardRef<HTMLDivElement, ImageProps>(
     const optimizationParams = new URLSearchParams({
       ...(width ? { w: width.toString() } : {}),
       ...(height ? { h: height.toString() } : {}),
+      fit: supportedFitValues.includes(fit) ? fit : "cover",
       q: quality ? quality.toString() : "100",
     });
 
     const responsiveOptimizationParams = new URLSearchParams({
       ...(width ? { h: (width * 2).toString() } : {}),
       ...(height ? { h: (height * 2).toString() } : {}),
+      fit: supportedFitValues.includes(fit) ? fit : "cover",
       q: quality ? quality.toString() : "100",
     });
 
@@ -112,25 +150,6 @@ const Image = forwardRef<HTMLDivElement, ImageProps>(
     const placeholder =
       input && typeof input !== "string" ? input.placeholder?.base64 : null;
 
-    const onLoad = useCallback(() => {
-      const duration = Date.now() - renderTime.current;
-      const threshold = 150;
-
-      // Fade in and gradually reduce blur of the real image if loading takes
-      // longer than the specified threshold.
-      if (duration > threshold) {
-        imageElement.current?.animate(
-          [
-            { filter: "blur(4px)", opacity: 0 },
-            { filter: "blur(0px)", opacity: 1 },
-          ],
-          {
-            duration: 200,
-          },
-        );
-      }
-    }, []);
-
     return (
       <div
         ref={ref}
@@ -141,13 +160,20 @@ const Image = forwardRef<HTMLDivElement, ImageProps>(
           flexShrink: 0,
           width: width || "100%",
           height: height || "100%",
+          aspectRatio:
+            aspect === "video" ? "16/9" : aspect === "square" ? "1/1" : "auto",
           ...style,
         }}
       >
         {/* Blurred preview being displayed until the actual image is loaded. */}
         {placeholder && (
           <img
-            style={{ position: "absolute", width: "100%", height: "100%" }}
+            style={{
+              position: "absolute",
+              width: "100%",
+              height: "100%",
+              objectFit: fit,
+            }}
             src={placeholder}
             alt={alt}
           />
@@ -160,7 +186,7 @@ const Image = forwardRef<HTMLDivElement, ImageProps>(
             position: "absolute",
             width: "100%",
             height: "100%",
-            objectFit: "cover",
+            objectFit: fit,
           }}
           decoding="async"
           onLoad={onLoad}