TootList: add hero animation

src/platform/StackedRouter.css

@@ -24,12 +24,8 @@ dialog.StackedPage {
   background: var(--tutu-color-surface);
   box-shadow: var(--tutu-shadow-e16);
 
-  @media (min-width: 560px) {
-    & {
-      left: 50%;
-      transform: translateX(-50%);
-    }
-  }
+  margin-left: auto;
+  margin-right: auto;
 
   @media (max-width: 560px) {
     & {
@@ -50,4 +46,12 @@ dialog.StackedPage {
   &::backdrop {
     background: none;
   }
+
+  &.animating {
+    overflow: hidden;
+
+    * {
+      overflow: hidden;
+    }
+  }
 }

src/platform/StackedRouter.tsx

@@ -6,6 +6,7 @@ import {
   createRenderEffect,
   createUniqueId,
   Index,
+  onMount,
   Show,
   untrack,
   useContext,
@@ -15,9 +16,7 @@ import { createStore, unwrap } from "solid-js/store";
 import "./StackedRouter.css";
 import { animateSlideInFromRight, animateSlideOutToRight } from "./anim";
 import { ANIM_CURVE_DECELERATION, ANIM_CURVE_STD } from "../material/theme";
-import {
-  makeEventListener,
-} from "@solid-primitives/event-listener";
+import { makeEventListener } from "@solid-primitives/event-listener";
 
 export type StackedRouterProps = Omit<RouterProps, "url">;
 
@@ -25,6 +24,9 @@ export type StackFrame = {
   path: string;
   rootId: string;
   state: unknown;
+
+  animateOpen?: (element: HTMLElement) => Animation;
+  animateClose?: (element: HTMLElement) => Animation;
 };
 
 export type NewFrameOptions<T> = (T extends undefined
@@ -33,6 +35,8 @@ export type NewFrameOptions<T> = (T extends undefined
     }
   : { state: T }) & {
   replace?: boolean;
+  animateOpen?: StackFrame["animateOpen"];
+  animateClose?: StackFrame["animateClose"];
 };
 
 export type FramePusher<T, K extends keyof T = keyof T> = T[K] extends
@@ -117,9 +121,11 @@ function animateClose(element: HTMLElement) {
 
 function animateOpen(element: HTMLElement) {
   if (window.innerWidth <= 560) {
-    animateSlideInFromRight(element, { easing: ANIM_CURVE_DECELERATION });
+    return animateSlideInFromRight(element, {
+      easing: ANIM_CURVE_DECELERATION,
+    });
   } else {
-    element.animate(
+    return element.animate(
       {
         opacity: [0.5, 1],
       },
@@ -128,6 +134,17 @@ function animateOpen(element: HTMLElement) {
   }
 }
 
+function serializableStack(stack: readonly StackFrame[]) {
+  const frames = unwrap(stack);
+  return frames.map((fr) => {
+    return {
+      path: fr.path,
+      rootId: fr.rootId,
+      state: fr.state,
+    };
+  });
+}
+
 /**
  * The router that stacks the pages.
  */
@@ -140,13 +157,15 @@ const StackedRouter: Component<StackedRouterProps> = (oprops) => {
         path,
         state: opts?.state,
         rootId: createUniqueId(),
+        animateOpen: opts?.animateOpen,
+        animateClose: opts?.animateClose,
       };
 
       mutStack(opts?.replace ? stack.length - 1 : stack.length, frame);
       if (opts?.replace) {
-        window.history.replaceState(unwrap(stack), "", path);
+        window.history.replaceState(serializableStack(stack), "", path);
       } else {
-        window.history.pushState(unwrap(stack), "", path);
+        window.history.pushState(serializableStack(stack), "", path);
       }
       return frame;
     });
@@ -165,10 +184,17 @@ const StackedRouter: Component<StackedRouterProps> = (oprops) => {
       }
       if (stack.length > 1) {
         const lastFrame = stack[stack.length - 1];
-        const element = document.getElementById(lastFrame.rootId)!;
+        const element = document.getElementById(
+          lastFrame.rootId,
+        )! as HTMLDialogElement;
+        const createAnimation = lastFrame.animateClose ?? animateClose;
         requestAnimationFrame(() => {
-          const animation = animateClose(element);
-          animation.addEventListener("finish", () => onlyPopFrame(depth));
+          element.classList.add("animating")
+          const animation = createAnimation(element);
+          animation.addEventListener("finish", () => {
+            element.classList.remove("animating")
+            onlyPopFrame(depth);
+          });
         });
       } else {
         onlyPopFrame(depth);
@@ -195,10 +221,16 @@ const StackedRouter: Component<StackedRouterProps> = (oprops) => {
   });
 
   const onBeforeDialogMount = (element: HTMLDialogElement) => {
-    createEffect(() => {
+    onMount(() => {
+      const lastFr = untrack(() => stack[stack.length - 1]);
+      const createAnimation = lastFr.animateOpen ?? animateOpen;
       requestAnimationFrame(() => {
         element.showModal();
-        animateOpen(element);
+        element.classList.add("animating");
+        const animation = createAnimation(element);
+        animation.addEventListener("finish", () =>
+          element.classList.remove("animating"),
+        );
       });
     });
   };

src/timelines/TootList.tsx

@@ -13,7 +13,6 @@ import { useDefaultSession } from "../masto/clients";
 import { useHeroSource } from "../platform/anim";
 import { HERO as BOTTOM_SHEET_HERO } from "../material/BottomSheet";
 import { setCache as setTootBottomSheetCache } from "./TootBottomSheet";
-import { useNavigate } from "@solidjs/router";
 import RegularToot, {
   findElementActionable,
   findRootToot,
@@ -21,6 +20,21 @@ import RegularToot, {
 import cardStyle from "../material/cards.module.css";
 import type { ThreadNode } from "../masto/timelines";
 import { useNavigator } from "../platform/StackedRouter";
+import { ANIM_CURVE_STD } from "../material/theme";
+
+function durationOf(rect0: DOMRect, rect1: DOMRect) {
+  const distancelt = Math.sqrt(
+    Math.pow(Math.abs(rect0.top - rect1.top), 2) +
+      Math.pow(Math.abs(rect0.left - rect1.left), 2),
+  );
+  const distancerb = Math.sqrt(
+    Math.pow(Math.abs(rect0.bottom - rect1.bottom), 2) +
+      Math.pow(Math.abs(rect0.right - rect1.right), 2),
+  );
+  const distance = distancelt + distancerb;
+  const duration = distance / 1.6;
+  return duration;
+}
 
 function positionTootInThread(index: number, threadLength: number) {
   if (index === 0) {
@@ -100,7 +114,7 @@ const TootList: Component<{
 
   const openFullScreenToot = (
     toot: mastodon.v1.Status,
-    srcElement?: HTMLElement,
+    srcElement: HTMLElement,
     reply?: boolean,
   ) => {
     const p = session()?.account;
@@ -116,12 +130,55 @@ const TootList: Component<{
 
     const acct = `${inf.username}@${p.site}`;
     setTootBottomSheetCache(acct, toot);
+
     push(`/${encodeURIComponent(acct)}/toot/${toot.id}`, {
-      state: reply
-        ? {
-            tootReply: true,
-          }
-        : undefined,
+      animateOpen(element) {
+        const rect0 = srcElement.getBoundingClientRect(); // the start rect
+        const rect1 = element.getBoundingClientRect(); // the end rect
+
+        const duration = durationOf(rect0, rect1);
+
+        const keyframes = {
+          top: [`${rect0.top}px`, `${rect1.top}px`],
+          bottom: [`${rect0.bottom}px`, `${rect1.bottom}px`],
+          left: [`${rect0.left}px`, `${rect1.left}px`],
+          right: [`${rect0.right}px`, `${rect1.right}px`],
+          height: [`${rect0.height}px`, `${rect1.height}px`],
+          margin: 0,
+        };
+
+        srcElement.style.visibility = "hidden";
+
+        const animation = element.animate(keyframes, {
+          duration,
+          easing: ANIM_CURVE_STD,
+        });
+        return animation;
+      },
+
+      animateClose(element) {
+        const rect0 = element.getBoundingClientRect(); // the start rect
+        const rect1 = srcElement.getBoundingClientRect(); // the end rect
+
+        const duration = durationOf(rect0, rect1);
+
+        const keyframes = {
+          top: [`${rect0.top}px`, `${rect1.top}px`],
+          bottom: [`${rect0.bottom}px`, `${rect1.bottom}px`],
+          left: [`${rect0.left}px`, `${rect1.left}px`],
+          right: [`${rect0.right}px`, `${rect1.right}px`],
+          height: [`${rect0.height}px`, `${rect1.height}px`],
+          margin: 0,
+        };
+
+        srcElement.style.visibility = "";
+
+        const animation = element.animate(keyframes, {
+          duration,
+          easing: ANIM_CURVE_STD,
+        });
+        return animation;
+      },
     });
   };