feat: add configurable page transitions with framer-motion

app/layout.tsx

@@ -12,6 +12,7 @@ import { ThemeToggle } from '@/components/ThemeToggle';
 import { ScrollToTop } from '@/components/ScrollToTop';
 import { Footer } from '@/components/Footer';
 import { DevToolbar } from '@/components/DevToolbar';
+import { PageTransition } from '@/components/PageTransition';
 import { getConfig, getGoogleFontsUrl } from '@/lib/config';
 
 const siteTitle = process.env.SITE_TITLE || 'Gallery';
@@ -87,7 +88,9 @@ export default function RootLayout({ children }: { children: React.ReactNode })
             <ThemeToggle />
           </nav>
         </header>
+        <PageTransition enabled={config.transitions}>
           <main className="main">{children}</main>
+        </PageTransition>
         <Footer />
         <ScrollToTop />
         {process.env.NODE_ENV === 'development' && <DevToolbar />}

components/PageTransition.tsx

@@ -0,0 +1,39 @@
+'use client';
+
+import { motion, AnimatePresence } from 'framer-motion';
+import { usePathname } from 'next/navigation';
+import React from 'react';
+
+interface PageTransitionProps {
+  children: React.ReactNode;
+  enabled: boolean;
+}
+
+/**
+ * Provides smooth page transitions using framer-motion.
+ * Can be toggled on/off via gallery.yaml.
+ */
+export function PageTransition({ children, enabled }: PageTransitionProps) {
+  const pathname = usePathname();
+
+  if (!enabled) {
+    return <>{children}</>;
+  }
+
+  return (
+    <AnimatePresence mode="wait">
+      <motion.div
+        key={pathname}
+        initial={{ opacity: 0, y: 10 }}
+        animate={{ opacity: 1, y: 0 }}
+        exit={{ opacity: 0, y: -10 }}
+        transition={{
+          duration: 0.4,
+          ease: [0.22, 1, 0.36, 1], // Custom "silk-smooth" cubic bezier
+        }}
+      >
+        {children}
+      </motion.div>
+    </AnimatePresence>
+  );
+}

lib/config.ts

@@ -124,6 +124,7 @@ interface GalleryYaml {
   albums?: string[];
   exifOnHover?: boolean;
   map?: boolean;
+  transitions?: boolean;
   theme?:
     | string
     | {
@@ -243,6 +244,8 @@ export interface AppConfig {
   footer: FooterConfig | null;
   /** Show the /map page. Default: false. */
   map: boolean;
+  /** Enable page transitions between routes. Default: true. */
+  transitions: boolean;
   /** Explicit album name overrides from gallery.yaml. */
   albumOverrides: Record<string, string>;
   cacheTtl: number;
@@ -474,6 +477,7 @@ export function getConfig(): AppConfig {
         }
       : null,
     map: gallery.map === true,
+    transitions: gallery.transitions !== false,
     albumOverrides,
     cacheTtl: env.CACHE_TTL * 1000,
     rateLimitRpm: env.RATE_LIMIT_RPM,

package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "@types/leaflet": "^1.9.21",
+        "framer-motion": "^12.35.0",
         "gray-matter": "^4.0.3",
         "js-yaml": "^4.1.1",
         "leaflet": "^1.9.4",
@@ -4504,6 +4505,33 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/framer-motion": {
+      "version": "12.35.0",
+      "resolved": "https://registry.npmjs.org/framer-motion/-/framer-motion-12.35.0.tgz",
+      "integrity": "sha512-w8hghCMQ4oq10j6aZh3U2yeEQv5K69O/seDI/41PK4HtgkLrcBovUNc0ayBC3UyyU7V1mrY2yLzvYdWJX9pGZQ==",
+      "license": "MIT",
+      "dependencies": {
+        "motion-dom": "^12.35.0",
+        "motion-utils": "^12.29.2",
+        "tslib": "^2.4.0"
+      },
+      "peerDependencies": {
+        "@emotion/is-prop-valid": "*",
+        "react": "^18.0.0 || ^19.0.0",
+        "react-dom": "^18.0.0 || ^19.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@emotion/is-prop-valid": {
+          "optional": true
+        },
+        "react": {
+          "optional": true
+        },
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/fsevents": {
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
@@ -5703,6 +5731,21 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/motion-dom": {
+      "version": "12.35.0",
+      "resolved": "https://registry.npmjs.org/motion-dom/-/motion-dom-12.35.0.tgz",
+      "integrity": "sha512-FFMLEnIejK/zDABn+vqGVAUN4T0+3fw+cVAY8MMT65yR+j5uMuvWdd4npACWhh94OVWQs79CrBBuwOwGRZAQiA==",
+      "license": "MIT",
+      "dependencies": {
+        "motion-utils": "^12.29.2"
+      }
+    },
+    "node_modules/motion-utils": {
+      "version": "12.29.2",
+      "resolved": "https://registry.npmjs.org/motion-utils/-/motion-utils-12.29.2.tgz",
+      "integrity": "sha512-G3kc34H2cX2gI63RqU+cZq+zWRRPSsNIOjpdl9TN4AQwC4sgwYPl/Q/Obf/d53nOm569T0fYK+tcoSV50BWx8A==",
+      "license": "MIT"
+    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",

package.json

@@ -16,6 +16,7 @@
   },
   "dependencies": {
     "@types/leaflet": "^1.9.21",
+    "framer-motion": "^12.35.0",
     "gray-matter": "^4.0.3",
     "js-yaml": "^4.1.1",
     "leaflet": "^1.9.4",