Fix stickers panel performance & styles

src/components/chat/inlineHelper.ts

@@ -203,8 +203,8 @@ export default class InlineHelper extends AutocompleteHelper {
             } else if(media.type === 'sticker') {
               container.classList.add('super-sticker');
               this.superStickerRenderer.renderSticker(media, container, loadPromises);
-              if(media.sticker === 2) {
-                this.superStickerRenderer.observeAnimatedDiv(container);
+              if(media.animated) {
+                this.superStickerRenderer.observeAnimated(container);
               }
             }
           } else if(media) {

src/components/emoticonsDropdown/index.ts

@@ -187,6 +187,10 @@ export class EmoticonsDropdown extends DropdownHover {
     return super.init();
   }
 
+  public getElement() {
+    return this.element;
+  }
+
   private onSelectTabClick = (id: number) => {
     if(this.tabId === id) {
       return;
@@ -248,11 +252,11 @@ export class EmoticonsDropdown extends DropdownHover {
       setActive(which);
 
       if(menuScroll) {
-        if(which < menu.childElementCount - 4) {
-          menuScroll.container.scrollLeft = (which - 3) * 47;
-        } else {
-          menuScroll.container.scrollLeft = which * 47;
-        }
+        menuScroll.scrollIntoViewNew({
+          element: menu.children[which] as HTMLElement,
+          position: 'center',
+          axis: 'x'
+        });
       }
     });
 

src/components/emoticonsDropdown/tabs/stickers.ts

@@ -5,7 +5,6 @@
  */
 
 import emoticonsDropdown, { EmoticonsDropdown, EMOTICONSSTICKERGROUP, EmoticonsTab } from "..";
-import findUpAttribute from "../../../helpers/dom/findUpAttribute";
 import findUpClassName from "../../../helpers/dom/findUpClassName";
 import mediaSizes from "../../../helpers/mediaSizes";
 import { MessagesAllStickers, StickerSet } from "../../../layer";
@@ -22,62 +21,72 @@ import PopupStickers from "../../popups/stickers";
 import Scrollable, { ScrollableX } from "../../scrollable";
 import StickyIntersector from "../../stickyIntersector";
 import { wrapSticker, wrapStickerSetThumb } from "../../wrappers";
+import ButtonIcon from "../../buttonIcon";
+import positionElementByIndex from "../../../helpers/dom/positionElementByIndex";
+import VisibilityIntersector, { OnVisibilityChange } from "../../visibilityIntersector";
+import findAndSplice from "../../../helpers/array/findAndSplice";
 
 export class SuperStickerRenderer {
   public lazyLoadQueue: LazyLoadQueueRepeat;
-  private animatedDivs: Set<HTMLDivElement> = new Set();
+  private animated: Set<HTMLElement> = new Set();
 
   constructor(
     private regularLazyLoadQueue: LazyLoadQueue, 
     private group: string,
-    private managers: AppManagers
+    private managers: AppManagers,
+    private options?: IntersectionObserverInit
   ) {
-    this.lazyLoadQueue = new LazyLoadQueueRepeat(undefined, (target, visible) => {
+    this.lazyLoadQueue = new LazyLoadQueueRepeat(undefined, ({target, visible}) => {
       if(!visible) {
-        this.processInvisibleDiv(target as HTMLDivElement);
+        this.processInvisible(target);
       }
-    });
+    }, options);
   }
 
   public clear() {
     this.lazyLoadQueue.clear();
   }
 
-  public renderSticker(doc: MyDocument, div?: HTMLDivElement, loadPromises?: Promise<any>[]) {
-    if(!div) {
-      div = document.createElement('div');
-      div.classList.add('grid-item', 'super-sticker');
+  public renderSticker(doc: MyDocument, element?: HTMLElement, loadPromises?: Promise<any>[]) {
+    if(!element) {
+      element = document.createElement('div');
+      element.classList.add('grid-item', 'super-sticker');
+      element.dataset.docId = '' + doc.id;
 
       if(doc.animated) {
-        this.observeAnimatedDiv(div);
+        this.observeAnimated(element);
       }
     }
 
     // * This will wrap only a thumb
-    wrapSticker({
+    /* !doc.animated &&  */wrapSticker({
       doc, 
-      div,
+      div: element,
       lazyLoadQueue: this.regularLazyLoadQueue, 
       group: this.group, 
       onlyThumb: doc.animated,
       loadPromises
     });
 
-    return div;
+    return element;
   }
 
-  public observeAnimatedDiv(div: HTMLDivElement) {
-    this.animatedDivs.add(div);
-
+  public observeAnimated(element: HTMLElement) {
+    this.animated.add(element);
     this.lazyLoadQueue.observe({
-      div, 
-      load: this.processVisibleDiv
+      div: element, 
+      load: this.processVisible
     });
   }
 
-  private checkAnimationContainer = (div: HTMLElement, visible: boolean) => {
+  public unobserveAnimated(element: HTMLElement) {
+    this.animated.delete(element);
+    this.lazyLoadQueue.unobserve(element);
+  }
+
+  private checkAnimationContainer = (element: HTMLElement, visible: boolean) => {
     //console.error('checkAnimationContainer', div, visible);
-    const players = animationIntersector.getAnimations(div);
+    const players = animationIntersector.getAnimations(element);
     players.forEach((player) => {
       if(!visible) {
         animationIntersector.checkAnimation(player, true, true);
@@ -87,8 +96,8 @@ export class SuperStickerRenderer {
     });
   };
 
-  private processVisibleDiv = async(div: HTMLElement) => {
-    const docId = div.dataset.docId;
+  private processVisible = async(element: HTMLElement) => {
+    const docId = element.dataset.docId;
     const doc = await this.managers.appDocsManager.getDoc(docId);
     
     const size = mediaSizes.active.esgSticker.width;
@@ -97,7 +106,7 @@ export class SuperStickerRenderer {
 
     const promise = wrapSticker({
       doc, 
-      div: div as HTMLDivElement,
+      div: element,
       width: size,
       height: size,
       lazyLoadQueue: null, 
@@ -109,7 +118,7 @@ export class SuperStickerRenderer {
 
     promise.then(() => {
       //clearTimeout(timeout);
-      this.checkAnimationContainer(div, this.lazyLoadQueue.intersector.isVisible(div));
+      this.checkAnimationContainer(element, this.lazyLoadQueue.intersector.isVisible(element));
     });
 
     /* let timeout = window.setTimeout(() => {
@@ -119,123 +128,140 @@ export class SuperStickerRenderer {
     return promise;
   };
 
-  public processInvisibleDiv = async(div: HTMLElement) => {
-    const docId = div.dataset.docId;
+  public processInvisible = async(element: HTMLElement) => {
+    const docId = element.dataset.docId;
     const doc = await this.managers.appDocsManager.getDoc(docId);
 
     //console.log('STICKER INvisible:', /* div,  */docId);
 
-    this.checkAnimationContainer(div, false);
+    this.checkAnimationContainer(element, false);
 
-    div.innerHTML = '';
-    this.renderSticker(doc, div as HTMLDivElement);
+    element.textContent = '';
+    this.renderSticker(doc, element as HTMLDivElement);
   };
 }
 
+type StickersTabCategory = {
+  elements: {
+    container: HTMLElement,
+    title: HTMLElement,
+    items: HTMLElement,
+    menuTab: HTMLElement,
+    menuTabPadding: HTMLElement
+  },
+  set: StickerSet.stickerSet,
+  items: {
+    document: MyDocument,
+    element: HTMLElement
+  }[]
+};
+
+const RECENT_STICKERS_COUNT = 20;
+
 export default class StickersTab implements EmoticonsTab {
   private content: HTMLElement;
-  private stickersDiv: HTMLElement;
-
-  private stickerSets: {[id: string]: {
-    stickers: HTMLElement,
-    tab: HTMLElement
-  }} = {};
 
-  private recentDiv: HTMLElement;
-  private recentStickers: MyDocument[] = [];
+  private categories: {[id: string]: StickersTabCategory};
+  private categoriesMap: Map<HTMLElement, StickersTabCategory>;
+  private categoriesIntersector: VisibilityIntersector;
 
   private scroll: Scrollable;
-
   private menu: HTMLElement;
-  
   private mounted = false;
-
-  private queueCategoryPush: {element: HTMLElement, prepend: boolean}[] = [];
-
   private stickyIntersector: StickyIntersector;
-
   private superStickerRenderer: SuperStickerRenderer;
 
   constructor(private managers: AppManagers) {
-
+    this.categories = {};
+    this.categoriesMap = new Map();
   }
 
-  categoryPush(categoryDiv: HTMLElement, categoryTitle: DocumentFragment | string = '', promise: Promise<MyDocument[]>, prepend?: boolean) {
-    //if((docs.length % 5) !== 0) categoryDiv.classList.add('not-full');
+  private createCategory(stickerSet: StickerSet.stickerSet, _title: HTMLElement | DocumentFragment) {
+    const container = document.createElement('div');
+    container.classList.add('emoji-category', 'hide');
 
-    const itemsDiv = document.createElement('div');
-    itemsDiv.classList.add('category-items', 'super-stickers');
+    const items = document.createElement('div');
+    items.classList.add('category-items', 'super-stickers');
 
-    const titleDiv = document.createElement('div');
-    titleDiv.classList.add('category-title');
+    const title = document.createElement('div');
+    title.classList.add('category-title');
+    title.append(_title);
 
-    if(categoryTitle) {
-      if(typeof(categoryTitle) === 'string') titleDiv.innerHTML = categoryTitle;
-      else titleDiv.append(categoryTitle);
-    }
+    const menuTab = ButtonIcon(undefined, {noRipple: true});
+    menuTab.classList.add('menu-horizontal-div-item');
 
-    categoryDiv.append(titleDiv, itemsDiv);
+    const menuTabPadding = document.createElement('div');
+    menuTabPadding.classList.add('menu-horizontal-div-item-padding');
 
-    this.stickyIntersector.observeStickyHeaderChanges(categoryDiv);
+    menuTab.append(menuTabPadding);
 
-    this.queueCategoryPush.push({element: categoryDiv, prepend});
+    const category: StickersTabCategory = {
+      elements: {
+        container,
+        title,
+        items,
+        menuTab,
+        menuTabPadding
+      },
+      set: stickerSet,
+      items: []
+    };
 
-    promise.then((documents) => {
-      documents.forEach((doc) => {
-        //if(doc._ === 'documentEmpty') return;
-        itemsDiv.append(this.superStickerRenderer.renderSticker(doc));
-      });
+    container.append(title, items);
 
-      if(this.queueCategoryPush.length) {
-        this.queueCategoryPush.forEach(({element, prepend}) => {
-          if(prepend) {
-            if(this.recentDiv.parentElement) {
-              this.stickersDiv.prepend(element);
-              this.stickersDiv.prepend(this.recentDiv);
-            } else {
-              this.stickersDiv.prepend(element);
-            }
-          } else this.stickersDiv.append(element);
-        });
-
-        this.queueCategoryPush.length = 0;
-      }
-    });
+    this.categories[stickerSet.id] = category;
+    this.categoriesMap.set(container, category);
+
+    this.categoriesIntersector.observe(container);
 
-    return {titleDiv};
+    return category;
   }
 
-  async renderStickerSet(set: StickerSet.stickerSet, prepend = false) {
-    const categoryDiv = document.createElement('div');
-    categoryDiv.classList.add('sticker-category');
-    categoryDiv.dataset.id = '' + set.id;
-    categoryDiv.dataset.access_hash = '' + set.access_hash;
+  private categoryPush(
+    category: StickersTabCategory, 
+    promise: Promise<MyDocument[]>
+  ) {
+    const {container, items} = category.elements;
+    this.stickyIntersector.observeStickyHeaderChanges(container);
 
-    const button = document.createElement('button');
-    button.classList.add('btn-icon', 'menu-horizontal-div-item');
+    promise.then((documents) => {
+      documents.forEach((document) => {
+        const element = this.superStickerRenderer.renderSticker(document);
+        category.items.push({document, element});
+        // items.append(element);
+      });
 
-    this.stickerSets[set.id] = {
-      stickers: categoryDiv,
-      tab: button
-    };
+      const containerWidth = 410;
+      const stickerSize = mediaSizes.active.esgSticker.width;
 
-    if(prepend) {
-      this.menu.insertBefore(button, this.menu.firstElementChild.nextSibling);
-    } else {
-      this.menu.append(button);
-    }
+      const itemsPerRow = Math.floor(containerWidth / stickerSize);
+      const rows = Math.ceil(documents.length / itemsPerRow);
+      const height = rows * stickerSize;
       
-    //stickersScroll.append(categoryDiv);
+      items.style.height = height + 'px';
+
+      container.classList.remove('hide');
+    });
+  }
+
+  private async renderStickerSet(set: StickerSet.stickerSet, prepend = false) {
+    const category = this.createCategory(set, wrapEmojiText(set.title));
+    const {menuTab, menuTabPadding, container} = category.elements;
+
+    positionElementByIndex(menuTab, this.menu, prepend ? 1 : 0xFFFF);
 
     const promise = this.managers.appStickersManager.getStickerSet(set);
-    this.categoryPush(categoryDiv, wrapEmojiText(set.title), promise.then((stickerSet) => stickerSet.documents as MyDocument[]), prepend);
-    const stickerSet = await promise;
+    this.categoryPush(
+      category,
+      promise.then((stickerSet) => stickerSet.documents as MyDocument[])
+    );
+    // const stickerSet = await promise;
 
-    //console.log('got stickerSet', stickerSet, li);
+    positionElementByIndex(container, this.scroll.container, prepend ? 1 : 0xFFFF, -1);
 
     wrapStickerSetThumb({
       set,
-      container: button,
+      container: menuTabPadding,
       group: EMOTICONSSTICKERGROUP,
       lazyLoadQueue: EmoticonsDropdown.lazyLoadQueue,
       width: 32,
@@ -244,21 +270,18 @@ export default class StickersTab implements EmoticonsTab {
     });
   }
 
-  init() {
+  public init() {
     this.content = document.getElementById('content-stickers');
-    //let stickersDiv = contentStickersDiv.querySelector('.os-content') as HTMLDivElement;
-
-    this.recentDiv = document.createElement('div');
-    this.recentDiv.classList.add('sticker-category', 'stickers-recent');
 
-    let menuWrapper = this.content.previousElementSibling as HTMLDivElement;
+    const menuWrapper = this.content.previousElementSibling as HTMLDivElement;
     this.menu = menuWrapper.firstElementChild as HTMLUListElement;
 
-    let menuScroll = new ScrollableX(menuWrapper);
+    const menuScroll = new ScrollableX(menuWrapper);
 
-    this.stickersDiv = document.createElement('div');
-    this.stickersDiv.classList.add('stickers-categories');
-    this.content.append(this.stickersDiv);
+    this.scroll = new Scrollable(this.content, 'STICKERS');
+    this.scroll.onAdditionalScroll = () => {
+      setTyping();
+    };
 
     /* stickersDiv.addEventListener('mouseover', (e) => {
       let target = e.target as HTMLElement;
@@ -277,30 +300,43 @@ export default class StickersTab implements EmoticonsTab {
       }
     }); */
 
-    rootScope.addEventListener('stickers_installed', (e) => {
-      const set: StickerSet.stickerSet = e;
+    const onCategoryVisibility: OnVisibilityChange = ({target, visible, entry}) => {
+      const category = this.categoriesMap.get(target);
+      // console.log('roll the windows up', category, target, visible, entry);
+      if(!visible) {
+        category.elements.items.textContent = '';
+      } else {
+        category.elements.items.append(...category.items.map(({element}) => element));
+      }
+    };
+
+    const intersectionOptions: IntersectionObserverInit = {root: emoticonsDropdown.getElement()};
+    this.categoriesIntersector = new VisibilityIntersector(onCategoryVisibility, intersectionOptions);
 
-      if(!this.stickerSets[set.id] && this.mounted) {
+    rootScope.addEventListener('stickers_installed', (set) => {
+      if(!this.categories[set.id] && this.mounted) {
         this.renderStickerSet(set, true);
       }
     });
 
-    rootScope.addEventListener('stickers_deleted', (e) => {
-      const set: StickerSet.stickerSet = e;
-      
-      if(this.stickerSets[set.id] && this.mounted) {
-        const elements = this.stickerSets[set.id];
-        elements.stickers.remove();
-        elements.tab.remove();
-        delete this.stickerSets[set.id];
+    rootScope.addEventListener('stickers_deleted', ({id}) => {
+      const set = this.categories[id];
+      if(set && this.mounted) {
+        set.elements.container.remove();
+        set.elements.menuTab.remove();
+        this.categoriesIntersector.unobserve(set.elements.container);
+        set.items.forEach(({element}) => this.superStickerRenderer.unobserveAnimated(element));
+        delete this.categories[id];
+        this.categoriesMap.delete(set.elements.container);
       }
     });
 
-    this.stickersDiv.addEventListener('click', (e) => {
+    this.scroll.container.addEventListener('click', (e) => {
       const target = e.target as HTMLElement;
       if(findUpClassName(target, 'category-title')) {
-        const el = findUpAttribute(target, 'data-id');
-        new PopupStickers({id: el.dataset.id, access_hash: el.dataset.access_hash}).show();
+        const container = findUpClassName(target, 'emoji-category');
+        const category = this.categoriesMap.get(container);
+        new PopupStickers({id: category.set.id, access_hash: category.set.access_hash}).show();
         return;
       }
 
@@ -311,12 +347,6 @@ export default class StickersTab implements EmoticonsTab {
       rootScope.dispatchEvent('choosing_sticker', !cancel);
     };
 
-    this.scroll = new Scrollable(this.content, 'STICKERS');
-    this.scroll.setVirtualContainer(this.stickersDiv);
-    this.scroll.onAdditionalScroll = () => {
-      setTyping();
-    };
-
     emoticonsDropdown.addEventListener('closed', () => {
       setTyping(true);
     });
@@ -329,20 +359,19 @@ export default class StickersTab implements EmoticonsTab {
 
     const preloader = putPreloader(this.content, true);
 
+    const recentCategory = this.createCategory({id: 'recent'} as any, i18n('Stickers.Recent'));
+    recentCategory.elements.title.classList.add('disable-hover');
+    recentCategory.elements.menuTab.classList.add('tgico-recent', 'active');
+    recentCategory.elements.menuTabPadding.remove();
+    positionElementByIndex(recentCategory.elements.container, this.scroll.container, 0);
+    positionElementByIndex(recentCategory.elements.menuTab, this.menu, 0);
+
     Promise.all([
       this.managers.appStickersManager.getRecentStickers().then((stickers) => {
-        this.recentStickers = stickers.stickers.slice(0, 20) as MyDocument[];
-  
-        //stickersScroll.prepend(categoryDiv);
-
-        this.stickerSets['recent'] = {
-          stickers: this.recentDiv,
-          tab: this.menu.firstElementChild as HTMLElement
-        };
+        const sliced = stickers.stickers.slice(0, RECENT_STICKERS_COUNT) as MyDocument[];
   
         preloader.remove();
-        const {titleDiv} = this.categoryPush(this.recentDiv, '', Promise.resolve(this.recentStickers), true);
-        titleDiv.append(i18n('Stickers.Recent'));
+        this.categoryPush(recentCategory, Promise.resolve(sliced));
       }),
 
       this.managers.appStickersManager.getAllStickers().then((res) => {
@@ -357,38 +386,61 @@ export default class StickersTab implements EmoticonsTab {
       setTyping();
     });
 
-    this.superStickerRenderer = new SuperStickerRenderer(EmoticonsDropdown.lazyLoadQueue, EMOTICONSSTICKERGROUP, this.managers);
+    this.superStickerRenderer = new SuperStickerRenderer(EmoticonsDropdown.lazyLoadQueue, EMOTICONSSTICKERGROUP, this.managers, intersectionOptions);
 
-    emoticonsDropdown.addLazyLoadQueueRepeat(this.superStickerRenderer.lazyLoadQueue, this.superStickerRenderer.processInvisibleDiv);
+    const rendererLazyLoadQueue = this.superStickerRenderer.lazyLoadQueue;
+    emoticonsDropdown.addLazyLoadQueueRepeat(rendererLazyLoadQueue, this.superStickerRenderer.processInvisible);
 
-    /* setInterval(() => {
-      // @ts-ignore
-      const players = Object.values(lottieLoader.players).filter((p) => p.width === 80);
+    // emoticonsDropdown.addEventListener('close', () => {
+    //   this.categoriesIntersector.lock();
+    // });
 
-      console.log('STICKERS RENDERED IN PANEL:', players.length, players.filter((p) => !p.paused).length, this.superStickerRenderer.lazyLoadQueue.intersector.getVisible().length);
-    }, .25e3); */
+    // emoticonsDropdown.addEventListener('closed', () => {
+    //   for(const [container] of this.categoriesMap) {
+    //     onCategoryVisibility(container, false);
+    //   }
+    // });
 
+    // emoticonsDropdown.addEventListener('opened', () => {
+    //   this.categoriesIntersector.unlockAndRefresh();
+    // });
+
+    // setInterval(() => {
+    //   // @ts-ignore
+    //   const players = Object.values(lottieLoader.players).filter((p) => p.width >= 80);
+      
+    //   console.log(
+    //     'STICKERS RENDERED IN PANEL:', 
+    //     players.length, 
+    //     players.filter((p) => !p.paused).length, 
+    //     rendererLazyLoadQueue.intersector.getVisible().length
+    //   );
+    // }, .25e3);
     
     this.init = null;
   }
 
-  pushRecentSticker(doc: MyDocument) {
-    this.managers.appStickersManager.pushRecentSticker(doc);
+  public pushRecentSticker(doc: MyDocument) {
+    this.managers.appStickersManager.pushRecentSticker(doc.id);
     
-    if(!this.recentDiv?.parentElement) {
+    const set = this.categories['recent'];
+    if(!set) {
       return;
     }
 
-    let div = this.recentDiv.querySelector(`[data-doc-id="${doc.id}"]`);
-    if(!div) {
-      div = this.superStickerRenderer.renderSticker(doc);
+    const items = set.elements.items;
+    let item = findAndSplice(set.items, (item) => item.document.id === doc.id);
+    if(!item) {
+      item = {
+        element: this.superStickerRenderer.renderSticker(doc),
+        document: doc
+      };
     }
 
-    const items = this.recentDiv.querySelector('.category-items');
-    items.prepend(div);
-
-    if(items.childElementCount > 20) {
-      (Array.from(items.children) as HTMLElement[]).slice(20).forEach((el) => el.remove());
+    set.items.unshift(item);
+    if(items.childElementCount) items.prepend(item.element);
+    if(items.childElementCount > RECENT_STICKERS_COUNT) {
+      (Array.from(items.children) as HTMLElement[]).slice(RECENT_STICKERS_COUNT).forEach((el) => el.remove());
     }
   }
 

src/components/gifsMasonry.ts

@@ -34,7 +34,7 @@ export default class GifsMasonry {
   ) {
     this.managers = rootScope.managers;
 
-    this.lazyLoadQueue = new LazyLoadQueueRepeat2(undefined, (target, visible) => {
+    this.lazyLoadQueue = new LazyLoadQueueRepeat2(undefined, ({target, visible}) => {
       if(visible) {
         this.processVisibleDiv(target);
       } else {

src/components/lazyLoadQueue.ts

@@ -4,7 +4,7 @@
  * https://github.com/morethanwords/tweb/blob/master/LICENSE
  */
 
-import VisibilityIntersector from "./visibilityIntersector";
+import VisibilityIntersector, { OnVisibilityChangeItem } from "./visibilityIntersector";
 import findAndSpliceAll from "../helpers/array/findAndSpliceAll";
 import findAndSplice from "../helpers/array/findAndSplice";
 import LazyLoadQueueIntersector, { LazyLoadElement } from "./lazyLoadQueueIntersector";
@@ -16,7 +16,7 @@ export default class LazyLoadQueue extends LazyLoadQueueIntersector {
     this.intersector = new VisibilityIntersector(this.onVisibilityChange);
   }
 
-  private onVisibilityChange = (target: HTMLElement, visible: boolean) => {
+  private onVisibilityChange = ({target, visible}: OnVisibilityChangeItem) => {
     if(visible) {
       /* if(DEBUG) {
         this.log('isIntersecting', target);

src/components/lazyLoadQueueRepeat.ts

@@ -11,10 +11,11 @@ import VisibilityIntersector, { OnVisibilityChange } from "./visibilityIntersect
 export default class LazyLoadQueueRepeat extends LazyLoadQueueIntersector {
   private _queue: Map<HTMLElement, LazyLoadElement> = new Map();
 
-  constructor(parallelLimit?: number, protected onVisibilityChange?: OnVisibilityChange) {
+  constructor(parallelLimit?: number, protected onVisibilityChange?: OnVisibilityChange, options?: IntersectionObserverInit) {
     super(parallelLimit);
 
-    this.intersector = new VisibilityIntersector((target, visible) => {
+    this.intersector = new VisibilityIntersector((item) => {
+      const {target, visible} = item;
       const spliced = findAndSpliceAll(this.queue, (i) => i.div === target);
       if(visible) {
         const items = spliced.length ? spliced : [this._queue.get(target)];
@@ -23,9 +24,9 @@ export default class LazyLoadQueueRepeat extends LazyLoadQueueIntersector {
         });
       }
   
-      this.onVisibilityChange && this.onVisibilityChange(target, visible);
+      this.onVisibilityChange && this.onVisibilityChange(item);
       this.setProcessQueueTimeout();
-    });
+    }, options);
   }
 
   public clear() {

src/components/lazyLoadQueueRepeat2.ts

@@ -12,7 +12,8 @@ export default class LazyLoadQueueRepeat2 extends LazyLoadQueueIntersector {
   constructor(parallelLimit?: number, protected onVisibilityChange?: OnVisibilityChange) {
     super(parallelLimit);
 
-    this.intersector = new VisibilityIntersector((target, visible) => {
+    this.intersector = new VisibilityIntersector((item) => {
+      const {target, visible} = item;
       const spliced = findAndSpliceAll(this.queue, (i) => i.div === target);
       if(visible && spliced.length) {
         spliced.forEach((item) => {
@@ -20,7 +21,7 @@ export default class LazyLoadQueueRepeat2 extends LazyLoadQueueIntersector {
         });
       }
   
-      this.onVisibilityChange && this.onVisibilityChange(target, visible);
+      this.onVisibilityChange && this.onVisibilityChange(item);
       this.setProcessQueueTimeout();
     });
   }

src/components/visibilityIntersector.ts

@@ -5,20 +5,21 @@
  */
 
 type TargetType = HTMLElement;
-export type OnVisibilityChange = (target: TargetType, visible: boolean) => void;
+export type OnVisibilityChangeItem = {target: TargetType, visible: boolean, entry: IntersectionObserverEntry};
+export type OnVisibilityChange = (item: OnVisibilityChangeItem) => void;
 
 export default class VisibilityIntersector {
   private observer: IntersectionObserver;
   private items: Map<TargetType, boolean> = new Map();
   private locked = false;
 
-  constructor(onVisibilityChange: OnVisibilityChange) {
+  constructor(onVisibilityChange: OnVisibilityChange, options?: IntersectionObserverInit) {
     this.observer = new IntersectionObserver((entries) => {
       if(this.locked) {
         return;
       }
 
-      const changed: {target: TargetType, visible: boolean}[] = [];
+      const changed: OnVisibilityChangeItem[] = [];
 
       entries.forEach((entry) => {
         const target = entry.target as TargetType;
@@ -37,15 +38,19 @@ export default class VisibilityIntersector {
           return;
         } */
 
-        changed[entry.isIntersecting ? 'unshift' : 'push']({target, visible: entry.isIntersecting});
+        const change: typeof changed[0] = {target, visible: entry.isIntersecting, entry};
+
+        // ! order will be incorrect so can't use it
+        // changed[entry.isIntersecting ? 'unshift' : 'push'](change);
+        changed.push(change);
 
         //onVisibilityChange(target, entry.isIntersecting);
       });
 
-      changed.forEach((smth) => {
-        onVisibilityChange(smth.target, smth.visible);
+      changed.forEach((item) => {
+        onVisibilityChange(item);
       });
-    });
+    }, options);
   }
 
   public getVisible() {

src/components/wrappers/stickerSetThumb.ts

@@ -11,6 +11,7 @@ import appDownloadManager from "../../lib/appManagers/appDownloadManager";
 import { AppManagers } from "../../lib/appManagers/managers";
 import lottieLoader from "../../lib/rlottie/lottieLoader";
 import rootScope from "../../lib/rootScope";
+import animationIntersector from "../animationIntersector";
 import LazyLoadQueue from "../lazyLoadQueue";
 import wrapSticker from "./sticker";
 
@@ -62,6 +63,7 @@ export default async function wrapStickerSetThumb({set, lazyLoadQueue, container
           return promise.then((blob) => {
             renderImageFromUrl(media, URL.createObjectURL(blob), () => {
               container.append(media);
+              animationIntersector.addAnimation(media as HTMLVideoElement, group);
             });
           });
         }
@@ -79,7 +81,9 @@ export default async function wrapStickerSetThumb({set, lazyLoadQueue, container
       div: container, 
       group: group,
       lazyLoadQueue,
-      managers
+      managers,
+      width,
+      height
     }); // kostil
   }
 }

src/helpers/dropdownHover.ts

@@ -61,9 +61,8 @@ export default class DropdownHover extends EventListenerBase<{
   }
 
   private onMouseOut = (e: MouseEvent) => {
-    if(KEEP_OPEN) return;
+    if(KEEP_OPEN || !this.isActive()) return;
     clearTimeout(this.displayTimeout);
-    if(!this.isActive()) return;
 
     const toElement = (e as any).toElement as Element;
     if(toElement && findUpAsChild(toElement, this.element)) {

src/index.hbs

@@ -158,9 +158,7 @@
           </div>
           <div class="tabs-tab stickers-padding">
             <div class="menu-wrapper">
-              <nav class="menu-horizontal-div no-stripe justify-start">
-                <button class="menu-horizontal-div-item btn-icon tgico-recent active"></button>
-              </nav>
+              <nav class="menu-horizontal-div no-stripe justify-start"></nav>
             </div>
             <div class="emoticons-content" id="content-stickers"></div>
           </div>

src/lib/appManagers/appStickersManager.ts

@@ -103,7 +103,7 @@ export class AppStickersManager extends AppManager {
     });
   }
 
-  public saveStickers(docs: Document[]) {
+  private saveStickers(docs: Document[]) {
     forEachReverse(docs, (doc, idx) => {
       doc = this.appDocsManager.saveDoc(doc);
 
@@ -295,7 +295,7 @@ export class AppStickersManager extends AppManager {
     });
   }
   
-  public saveStickerSet(res: Omit<MessagesStickerSet.messagesStickerSet, '_'>, id: DocId) {
+  private saveStickerSet(res: Omit<MessagesStickerSet.messagesStickerSet, '_'>, id: DocId) {
     //console.log('stickers save set', res);w
 
     const newSet: MessagesStickerSet = {
@@ -401,6 +401,8 @@ export class AppStickersManager extends AppManager {
   }
 
   public async toggleStickerSet(set: StickerSet.stickerSet) {
+    set = this.storage.getFromCache(set.id).set;
+
     if(set.installed_date) {
       const res = await this.apiManager.invokeApi('messages.uninstallStickerSet', {
         stickerset: this.getStickerSetInput(set)
@@ -559,7 +561,8 @@ export class AppStickersManager extends AppManager {
     });
   }
 
-  public pushRecentSticker(doc: MyDocument) {
+  public pushRecentSticker(docId: DocId) {
+    const doc = this.appDocsManager.getDoc(docId);
     const docEmoticon = fixEmoji(doc.stickerEmojiRaw);
     for(const emoticon in this.getStickersByEmoticonsPromises) {
       const promise = this.getStickersByEmoticonsPromises[emoticon];

src/scss/partials/_emojiDropdown.scss

@@ -5,6 +5,7 @@
  */
 
 .emoji-dropdown {
+  --menu-height: 3.0625rem;
 	display: flex/*  !important */;
 	flex-direction: column;
 	width: 100%;
@@ -41,16 +42,16 @@
 		}
 	}
 
-	/* @include respond-to(handhelds) {
-		width: calc(100% + 1rem);
-		margin-left: -.5rem;
-	} */
-
 	.emoji-container {
 		width: 100%;
 		max-width: 100%;
 		overflow: hidden;
 		height: 100%;
+
+    .menu-horizontal-div {
+			z-index: 4;
+			background-color: var(--surface-color);
+		}
 	}
 
 	.emoji-tabs {
@@ -62,34 +63,32 @@
 		&-search {
 			position: absolute;
 			left: 0;
-			margin-left: 4px !important;
+			margin-left: .5rem !important;
 		}
 
 		&-delete {
 			position: absolute;
 			right: 0;
-			margin-right: 4px !important;
+			margin-right: .5rem !important;
 		}
+
+    .menu-horizontal-div-item {
+      margin: 0 1rem;
+    }
 	}
 
+  .category-title {
+    font-size: var(--font-size-14);
+    font-weight: var(--font-weight-bold);
+    line-height: var(--line-height-14);
+    color: var(--secondary-text-color);
+    padding: .8125rem .875rem .6875rem;
+    width: 100%;
+  }
+	
 	.tabs-container {
-		/* width: 300%; */
 		height: 100%;
 
-		.category-title {
-			//position: sticky;
-			top: 0;
-			//font-size: .85rem;
-			font-size: 14px;
-			font-weight: var(--font-weight-bold);
-			color: var(--secondary-text-color);
-			//background: linear-gradient(to bottom,#fff 0,rgba(255,255,255,.9) 60%,rgba(255,255,255,0) 100%);
-			z-index: 2;
-			//padding: .53333rem 6PX .66667rem;
-			padding: 12px 6px 6px 6px;
-			width: 100%;
-		}
-
 		.sticky_sentinel {
 			&--top {
 				top: 0;
@@ -110,173 +109,83 @@
 			position: relative;
       background-color: var(--surface-color);
 		}
-		
-		.scrollable {
-			padding: 0 10px;
-		}
 	}
 	
-	.emoji-padding.active {
+	.emoji-padding {
+    .super-emojis {
+      padding: 0 .5rem;
+    }
+
 		@include respond-to(handhelds) {
-			.menu-horizontal-div .menu-horizontal-div-item {
+			.menu-horizontal-div-item {
 				flex: unset;
 				padding: 0;
 			}
-
-			.category-items {
-				grid-template-columns: repeat(auto-fill, 40px);
-
-				> span {
-					width: 40px;
-					height: 40px;
-					justify-self: center;
-				}
-			}
-	
-			.category-title {
-				padding: 12px 6px 6px 10px;
-			}
-	
-			.scrollable {
-				padding: 0;
-			}
-	
-			.emoji-category .category-items {
-				grid-column-gap: unset;
-			}
-		}
-	}
-	
-	.emoji-padding, 
-  .stickers-padding {
-		.menu-horizontal-div {
-			// padding: 2px;
-			z-index: 4;
-			background-color: var(--surface-color);
-
-			.menu-horizontal-div-item {
-				margin: 0;
-			}
 		}
 	}
 	
 	.emoji-category {
-		//padding-top: 1px;
 		position: relative;
-		margin: 0 -.125rem;
-
-		/* &:first-child {
-			//padding-top: 5px;
-		} */
-
-		/* &::after {
-			content: "";
-			flex: auto;
-		} */
-	}
-	
-	.sticker-category {
-		position: relative;
-
-		.category-title {
-			cursor: pointer;
-		}
-
-		&.stickers-recent {
-			.category-title {
-				pointer-events: none;
-			}
-		}
-		
-		/* &::after {
-			content: "";
-			flex: auto;
-		} */
-
-		/* &.not-full::after {
-			content: "";
-			flex: auto;
-		} */
-
-		.category-items {
-			width: 100%;
-			display: grid;
-			grid-template-columns: repeat(auto-fill, var(--esg-sticker-size)); // 64px
-			grid-column-gap: 1px;
-			justify-content: space-between;
-
-			
-		}
-	}
-	
-	#content-stickers {
-		.scrollable {
-			padding: 0px 5px 0;
-		}
 	}
 	
 	.menu-horizontal-div {
 		width: 100%;
-		height: 48px;
+		height: var(--menu-height);
+    min-height: var(--menu-height);
+    align-items: center;
 
-		.menu-horizontal-div-item {
+		&-item {
 			font-size: 1.5rem;
-			margin: 0 12px;
-			width: 48px;
-			height: 48px;
-			line-height: 48px;
+			width: 2.5rem;
+			height: 2.5rem;
+			line-height: 2.5rem;
 			display: flex;
 			align-items: center;
 			flex: 0 0 auto;
+      padding: 0;
 		}
 	} 
 
 	.stickers-padding {
-		&.active {
-			.scrollable {
-				padding: 0;
-				//box-shadow: 0px 1px 5px -1px rgba(0, 0, 0, .21);
-			}
+    .category-title {
+			cursor: pointer;
+		}
 
-			.menu-horizontal-div {
-				.menu-horizontal-div-item {
-					height: 48px;
-					width: 48px;
-					padding: 0;
-					margin-right: 1px;
-					margin-left: 1px;
-				}
-			}
+		.category-items {
+			width: 100%;
+			display: grid;
+			grid-template-columns: repeat(auto-fill, var(--esg-sticker-size)); // 64px
+			justify-content: space-between;
+      padding: 0 .3125rem;
 		}
 
 		.menu-wrapper {
 			padding: 0;
-			height: 48px;
+			height: var(--menu-height);
 			max-width: 100%;
       position: relative;
+      border-bottom: 1px solid var(--border-color);
+      background-color: var(--surface-color);
 		}
 
-		.menu-horizontal-div-item {
-			/* width: calc(100% / 7); */
-			flex: 0 0 auto;
-			
-			&.active {
-				&:not(.tgico-recent) {
-					background-color: var(--light-secondary-text-color);
-				}
-			}
-			
-			> canvas, > img {
-				//padding: .75rem;
-				padding: 8px;
-				max-width: 100%;
-				max-height: 100%;
-			}
-
-			> canvas {
-				width: 100%;
-				height: 100%;
-			}
-		} 
+    .menu-horizontal-div {
+      &-item {
+        flex: 0 0 auto;
+        padding: .25rem;
+        margin: 0 .3125rem;
+  
+        &-padding {
+          width: 100%;
+          height: 100%;
+          position: relative;
+        }
+        
+        &.active {
+          &:not(.tgico-recent) {
+            background-color: var(--light-secondary-text-color);
+          }
+        }
+      }
+    }
 	}
 }

src/scss/style.scss

@@ -968,13 +968,13 @@ img.emoji {
   width: 100%;
 	display: grid;
 	grid-template-columns: repeat(auto-fill, var(--esg-sticker-size)); // 64px
-	grid-column-gap: 1px;
+	// grid-column-gap: 1px;
 	justify-content: space-between;
 }
 
 .super-sticker {
   @include hover-background-effect() {
-    border-radius: 10px;
+    border-radius: $border-radius-medium;
   }
   
   /* &:nth-child(5n+5) {