Media Viewer: Fix closing animation (#5515)

src/components/mediaViewer/helpers/ghostAnimation.ts

@@ -5,8 +5,9 @@ import { ANIMATION_END_DELAY, MESSAGE_CONTENT_SELECTOR } from '../../../config';
 import { requestMutation } from '../../../lib/fasterdom/fasterdom';
 import { getMessageHtmlId } from '../../../global/helpers';
 import { applyStyles } from '../../../util/animation';
-import { isElementInViewport } from '../../../util/isElementInViewport';
 import stopEvent from '../../../util/stopEvent';
+import getOffsetToContainer from '../../../util/visibility/getOffsetToContainer';
+import { isElementInViewport } from '../../../util/visibility/isElementInViewport';
 import { IS_TOUCH_ENV } from '../../../util/windowEnvironment';
 import windowSize from '../../../util/windowSize';
 import {
@@ -128,11 +129,13 @@ export function animateClosing(
   let fromScaleY = fromHeight / toHeight;
 
   const shouldFadeOut = (
-    [MediaViewerOrigin.Inline, MediaViewerOrigin.ScheduledInline].includes(origin)
-    && !isMessageImageFullyVisible(container, toImage)
-  ) || (
-    [MediaViewerOrigin.Album, MediaViewerOrigin.ScheduledAlbum].includes(origin)
-    && !isMessageImageFullyVisible(container, toImage)
+    [
+      MediaViewerOrigin.Inline,
+      MediaViewerOrigin.ScheduledInline,
+      MediaViewerOrigin.Album,
+      MediaViewerOrigin.ScheduledAlbum,
+    ].includes(origin)
+    && !isMessageImageFullyVisible(toImage)
   );
 
   if ([
@@ -266,15 +269,13 @@ function uncover(realWidth: number, realHeight: number, top: number, left: numbe
   };
 }
 
-function isMessageImageFullyVisible(container: HTMLElement, imageEl: HTMLElement) {
+function isMessageImageFullyVisible(imageEl: HTMLElement) {
   const messageListElement = document.querySelector<HTMLDivElement>('.Transition_slide-active > .MessageList')!;
-  let imgOffsetTop = container.offsetTop + imageEl.closest<HTMLDivElement>('.content-inner, .WebPage')!.offsetTop;
-  if (container.id.includes('album-media-')) {
-    imgOffsetTop += container.parentElement!.offsetTop + container.closest<HTMLDivElement>('.Message')!.offsetTop;
-  }
 
-  return imgOffsetTop > messageListElement.scrollTop
-    && imgOffsetTop + imageEl.offsetHeight < messageListElement.scrollTop + messageListElement.offsetHeight;
+  const { top } = getOffsetToContainer(imageEl, messageListElement);
+
+  return top > messageListElement.scrollTop
+    && top + imageEl.offsetHeight < messageListElement.scrollTop + messageListElement.offsetHeight;
 }
 
 function getTopOffset(hasFooter: boolean) {

src/components/middle/MessageList.tsx

@@ -56,7 +56,7 @@ import { orderBy } from '../../util/iteratees';
 import { isLocalMessageId } from '../../util/keys/messageKey';
 import resetScroll from '../../util/resetScroll';
 import { debounce, onTickEnd } from '../../util/schedulers';
-import { getOffsetToContainer } from '../../util/scroll';
+import getOffsetToContainer from '../../util/visibility/getOffsetToContainer';
 import { groupMessages } from './helpers/groupMessages';
 import { preventMessageInputBlur } from './helpers/preventMessageInputBlur';
 

src/components/middle/composer/EmojiTooltip.tsx

@@ -6,7 +6,7 @@ import type { ApiSticker } from '../../../api/types';
 import animateHorizontalScroll from '../../../util/animateHorizontalScroll';
 import buildClassName from '../../../util/buildClassName';
 import findInViewport from '../../../util/findInViewport';
-import isFullyVisible from '../../../util/isFullyVisible';
+import isFullyVisible from '../../../util/visibility/isFullyVisible';
 
 import useEffectWithPrevDeps from '../../../hooks/useEffectWithPrevDeps';
 import useHorizontalScroll from '../../../hooks/useHorizontalScroll';

src/components/middle/message/Message.tsx

@@ -111,9 +111,9 @@ import {
   selectUser,
 } from '../../../global/selectors';
 import buildClassName from '../../../util/buildClassName';
-import { isElementInViewport } from '../../../util/isElementInViewport';
 import { getMessageKey } from '../../../util/keys/messageKey';
 import stopEvent from '../../../util/stopEvent';
+import { isElementInViewport } from '../../../util/visibility/isElementInViewport';
 import { IS_ANDROID, IS_ELECTRON, IS_TRANSLATION_SUPPORTED } from '../../../util/windowEnvironment';
 import { calculateDimensionsForMessageMedia, getStickerDimensions, REM } from '../../common/helpers/mediaDimensions';
 import { getPeerColorClass } from '../../common/helpers/peerColor';

src/util/animateScroll.ts

@@ -12,8 +12,8 @@ import {
 } from '../config';
 import { requestMeasure, requestMutation } from '../lib/fasterdom/fasterdom';
 import { selectCanAnimateInterface } from '../global/selectors';
+import getOffsetToContainer from './visibility/getOffsetToContainer';
 import { animateSingle, cancelSingleAnimation } from './animation';
-import { getOffsetToContainer } from './scroll';
 import { IS_ANDROID } from './windowEnvironment';
 
 export type AnimateScrollArgs = {

src/util/setTooltipItemVisible.ts

@@ -1,6 +1,6 @@
+import isFullyVisible from './visibility/isFullyVisible';
 import animateScroll from './animateScroll';
 import findInViewport from './findInViewport';
-import isFullyVisible from './isFullyVisible';
 
 const VIEWPORT_MARGIN = 8;
 const SCROLL_MARGIN = 10;

src/util/visibility/getOffsetToContainer.ts

@@ -1,4 +1,4 @@
-export function getOffsetToContainer(element: HTMLElement, container: HTMLElement) {
+export default function getOffsetToContainer(element: HTMLElement, container: HTMLElement) {
   let offsetTop = 0;
   let offsetLeft = 0;
 

src/util/visibility/isElementInViewport.ts

@@ -1,4 +1,4 @@
-import windowSize from './windowSize';
+import windowSize from '../windowSize';
 
 export function isElementInViewport(el: HTMLElement) {
   if (el.style.display === 'none') {

src/util/visibility/isFullyVisible.ts

@@ -1,9 +1,7 @@
-function isFullyVisible(container: HTMLElement, element: HTMLElement, isHorizontal = false) {
+export default function isFullyVisible(container: HTMLElement, element: HTMLElement, isHorizontal = false) {
   const viewportY1 = container[isHorizontal ? 'scrollLeft' : 'scrollTop'];
   const viewportY2 = viewportY1 + container[isHorizontal ? 'offsetWidth' : 'offsetHeight'];
   const y1 = element[isHorizontal ? 'offsetLeft' : 'offsetTop'];
   const y2 = y1 + element[isHorizontal ? 'offsetWidth' : 'offsetHeight'];
   return y1 > viewportY1 && y2 < viewportY2;
 }
-
-export default isFullyVisible;