chore(core): use fadeBottom animation for center peek (#10072)

close AF-2184, AF-2186

![CleanShot 2025-02-11 at 09.31.39.gif](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/LakojjjzZNf6ogjOVwKE/81ed6601-33ff-4eee-bb35-636a2a27cd85.gif)

packages/frontend/core/src/modules/peek-view/entities/peek-view.ts

@@ -217,7 +217,7 @@ function resolvePeekInfoFromPeekTarget(
   return;
 }
 
-export type PeekViewAnimation = 'fade' | 'zoom' | 'none';
+export type PeekViewAnimation = 'fade' | 'fadeBottom' | 'zoom' | 'none';
 export type PeekViewMode = 'full' | 'fit' | 'max';
 
 export class PeekViewEntity extends Entity {

packages/frontend/core/src/modules/peek-view/view/modal-container.tsx

@@ -77,7 +77,7 @@ export const PeekViewModalContainer = forwardRef<
     children,
     onAnimationStart,
     onAnimationEnd,
-    animation = 'zoom',
+    animation = 'fadeBottom',
     mode = 'fit',
     dialogFrame = true,
   },
@@ -310,6 +310,45 @@ export const PeekViewModalContainer = forwardRef<
     [onAnimationEnd, onAnimationStart]
   );
 
+  const animateFadeBottom = useCallback(
+    (animateIn: boolean) => {
+      setAnimeState('animating');
+      return new Promise<void>(resolve => {
+        if (animateIn) setVtOpen(true);
+        setTimeout(() => {
+          const overlay = overlayRef.current;
+          const contentClip = contentClipRef.current;
+          if (!overlay || !contentClip) {
+            resolve();
+            return;
+          }
+
+          anime({
+            targets: [overlay],
+            opacity: animateIn ? [0, 1] : [1, 0],
+            easing: 'easeOutQuad',
+            duration: 230,
+          });
+          anime({
+            targets: [contentClip],
+            opacity: animateIn ? [0, 1] : [1, 0],
+            y: animateIn ? ['-2%', '0%'] : ['0%', '-2%'],
+            scale: animateIn ? [0.96, 1] : [1, 0.96],
+            easing: 'cubicBezier(0.42, 0, 0.58, 1)',
+            duration: 230,
+            complete: () => {
+              if (!animateIn) setVtOpen(false);
+              setAnimeState('idle');
+              onAnimationEnd?.();
+              resolve();
+            },
+          });
+        });
+      });
+    },
+    [onAnimationEnd]
+  );
+
   useEffect(() => {
     const onKeyDown = (e: KeyboardEvent) => {
       if (e.key === 'Escape') {
@@ -325,12 +364,22 @@ export const PeekViewModalContainer = forwardRef<
   useLayoutEffect(() => {
     if (animation === 'zoom') {
       open ? animateZoomIn() : animateZoomOut();
+    } else if (animation === 'fadeBottom') {
+      animateFadeBottom(open).catch(console.error);
     } else if (animation === 'fade') {
       animateFade(open).catch(console.error);
     } else if (animation === 'none') {
       setVtOpen(open);
     }
-  }, [animateZoomOut, animation, open, target, animateZoomIn, animateFade]);
+  }, [
+    animateZoomOut,
+    animation,
+    open,
+    target,
+    animateZoomIn,
+    animateFade,
+    animateFadeBottom,
+  ]);
 
   return (
     <PeekViewContext.Provider value={emptyContext}>

packages/frontend/core/src/modules/peek-view/view/peek-view-manager.tsx

@@ -93,10 +93,7 @@ const getRendererProps = (
         ? activePeekView.target.element
         : undefined,
     mode: getMode(activePeekView.info),
-    animation:
-      activePeekView.target.element && getMode(activePeekView.info) !== 'full'
-        ? 'zoom'
-        : 'fade',
+    animation: 'fadeBottom',
     dialogFrame: activePeekView.info.type !== 'image',
   };
 };