From 345bee8c1050ad06cfeb8f28d5bc084ef473f416 Mon Sep 17 00:00:00 2001
From: Eduard Kuzmenko <thanwords24@gmail.com>
Date: Mon, 16 Nov 2020 04:46:51 +0200
Subject: [PATCH] Fix slicer for handhelds

---
 src/components/chat/input.ts             |  4 ++--
 src/components/inputField.ts             |  2 +-
 src/lib/appManagers/appDialogsManager.ts | 18 ++++++++++++------
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/components/chat/input.ts b/src/components/chat/input.ts
index 75358e3c..64405166 100644
--- a/src/components/chat/input.ts
+++ b/src/components/chat/input.ts
@@ -196,13 +196,13 @@ export class ChatInput {
       const value = this.messageInput.innerText;
   
       const entities = RichTextProcessor.parseEntities(value);
-      console.log('messageInput entities', entities);
+      //console.log('messageInput entities', entities);
   
       const urlEntities = entities.filter(e => e._ == 'messageEntityUrl');
       if(urlEntities.length) {
         const richEntities: MessageEntity[] = [];
         const richValue = RichTextProcessor.parseMarkdown(getRichValue(this.messageInput), richEntities);
-        console.log('messageInput url', entities, richEntities);
+        //console.log('messageInput url', entities, richEntities);
         for(const entity of urlEntities) {
           const url = value.slice(entity.offset, entity.offset + entity.length);
   
diff --git a/src/components/inputField.ts b/src/components/inputField.ts
index 9ec0cf77..00a8c933 100644
--- a/src/components/inputField.ts
+++ b/src/components/inputField.ts
@@ -64,7 +64,7 @@ const InputField = (options: {
     const input = div.firstElementChild as HTMLElement;
     const observer = new MutationObserver((mutationsList, observer) => {
       const isEmpty = isInputEmpty(input);
-      console.log('input', isEmpty);
+      //console.log('input', isEmpty);
 
       const char = input.innerText[0];
       let direction = 'ltr';
diff --git a/src/lib/appManagers/appDialogsManager.ts b/src/lib/appManagers/appDialogsManager.ts
index a43aae2c..273864c5 100644
--- a/src/lib/appManagers/appDialogsManager.ts
+++ b/src/lib/appManagers/appDialogsManager.ts
@@ -13,7 +13,7 @@ import { isApple, isSafari } from "../../helpers/userAgent";
 import { logger, LogLevels } from "../logger";
 import { RichTextProcessor } from "../richtextprocessor";
 import rootScope from "../rootScope";
-import { findUpClassName, positionElementByIndex } from "../../helpers/dom";
+import { findUpClassName, findUpTag, positionElementByIndex } from "../../helpers/dom";
 import appImManager, { AppImManager } from "./appImManager";
 import appMessagesManager, { Dialog } from "./appMessagesManager";
 import {MyDialogFilter as DialogFilter} from "../storages/filters";
@@ -740,7 +740,7 @@ export class AppDialogsManager {
     if(this.sliceTimeout) clearTimeout(this.sliceTimeout);
     this.sliceTimeout = window.setTimeout(() => {
       this.sliceTimeout = undefined;
-      
+
       /* const observer = new IntersectionObserver((entries) => {
         const 
       });
@@ -753,13 +753,17 @@ export class AppDialogsManager {
 
       const rect = this.scroll.container.getBoundingClientRect();
       const children = Array.from(this.scroll.splitUp.children) as HTMLElement[];
-      const firstElement = document.elementFromPoint(rect.x, rect.y) as HTMLElement;
-      const lastElement = document.elementFromPoint(rect.x, rect.y + rect.height - 1) as HTMLElement;
+      const firstElement = findUpTag(document.elementFromPoint(rect.x, rect.y + 1), 'LI') as HTMLElement;
+      const lastElement = findUpTag(document.elementFromPoint(rect.x, rect.y + rect.height - 1), 'LI') as HTMLElement;
+
+      //alert('got element:' + rect.y);
 
       if(!firstElement || !lastElement) {
         return;
       }
 
+      //alert('got element:' + !!firstElement);
+
       const firstElementRect = firstElement.getBoundingClientRect();
       const elementOverflow = firstElementRect.y - rect.y;
 
@@ -803,14 +807,16 @@ export class AppDialogsManager {
 
       //this.log('[slicer] elements', firstElement, lastElement, rect, sliced, sliceFromStart.length, sliceFromEnd.length);
 
-      //this.log('[slicer] reset scrollTop', scrollTopWas, this.scroll.scrollTop, firstElement.offsetTop, firstElementRect.y, rect.y, elementOverflow);
+      //this.log('[slicer] reset scrollTop', this.scroll.scrollTop, firstElement.offsetTop, firstElementRect.y, rect.y, elementOverflow);
+
+      //alert('left length:' + children.length);
 
       this.scroll.scrollTop = firstElement.offsetTop - elementOverflow;
       /* const firstElementRect = firstElement.getBoundingClientRect();
       const scrollTop =  */
 
       //this.scroll.scrollIntoView(firstElement, false);
-    }, 1e3);
+    }, 200);
   };
 
   public onChatsScrollTop = () => {