Refactor timeline (#1346)

* fix intersection & resize observer

* add binary search util

* add scroll info util

* add virtual paginator hook - WIP

* render timeline using paginator hook

* add continuous pagination to fill timeline

* add doc comments in virtual paginator hook

* add scroll to element func in virtual paginator

* extract timeline pagination login into hook

* add sliding name for timeline messages - testing

* scroll with live event

* change message rending style

* make message timestamp smaller

* remove unused imports

* add random number between util

* add compact message component

* add sanitize html types

* fix sending alias in room mention

* get room member display name util

* add get room with canonical alias util

* add sanitize html util

* render custom html with new styles

* fix linkifying link text

* add reaction component

* display message reactions in timeline

* Change mention color

* show edited message

* add event sent by function factory

* add functions to get emoji shortcode

* add component for reaction msg

* add tooltip for who has reacted

* add message layouts & placeholder

* fix reaction size

* fix dark theme colors

* add code highlight with prismjs

* add options to configure spacing in msgs

* render message reply

* fix trim reply from body regex

* fix crash when loading reply

* fix reply hover style

* decrypt event on timeline paginate

* update custom html code style

* remove console logs

* fix virtual paginator scroll to func

* fix virtual paginator scroll to types

* add stop scroll for in view item options

* fix virtual paginator out of range scroll to index

* scroll to and highlight reply on click

* fix reply hover style

* make message avatar clickable

* fix scrollTo issue in virtual paginator

* load reply from fetch

* import virtual paginator restore scroll

* load timeline for specific event

* Fix back pagination recalibration

* fix reply min height

* revert code block colors to secondary

* stop sanitizing text in code block

* add decrypt file util

* add image media component

* update folds

* fix code block font style

* add msg event type

* add scale dimension util

* strict msg layout type

* add image renderer component

* add message content fallback components

* add message matrix event renderer components

* render matrix event using hooks

* add attachment component

* add attachment content types

* handle error when rendering image in timeline

* add video component

* render video

* include blurhash in thumbnails

* generate thumbnails for image message

* fix reactToDom spoiler opts

* add hooks for HTMLMediaElement

* render audio file in timeline

* add msg image content component

* fix image content props

* add video content component

* render new image/video component in timeline

* remove console.log

* convert seconds to milliseconds in video info

* add load thumbnail prop to video content component

* add file saver types

* add file header component

* add file content component

* render file in timeline

* add media control component

* render audio message in room timeline

* remove moved components

* safely load message reply

* add media loading hook

* update media control layout

* add loading indication in audio component

* fill audio play icon when playing audio

* fix media expanding

* add image viewer - WIP

* add pan and zoom control to image viewer

* add text based file viewer

* add pdf viewer

* add error handling in pdf viewer

* add download btn to pdf viewer

* fix file button spinner fill

* fix file opens on re-render

* add range slider in audio content player

* render location in timeline

* update folds

* display membership event in timeline

* make reactions toggle

* render sticker messages in timeline

* render room name, topic, avatar change and event

* fix typos

* update render state event type style

* add  room intro in start of timeline

* add power levels context

* fix wrong param passing in RoomView

* fix sending typing notification in wrong room

Slate onChange callback was not updating with react re-renders.

* send typing status on key up

* add typing indicator component

* add typing member atom

* display typing status in member drawer

* add room view typing member component

* display typing members in room view

* remove old roomTimeline uses

* add event readers hook

* add latest event hook

* display following members in room view

* fetch event instead of event context for reply

* fix typo in virtual paginator hook

* add scroll to latest btn in timeline

* change scroll to latest chip variant

* destructure paginator object to improve perf

* restore forward dir scroll in virtual paginator

* run scroll to bottom in layout effect

* display unread message indicator in timeline

* make component for room timeline float

* add timeline divider component

* add day divider and format message time

* apply message spacing to dividers

* format date in room intro

* send read receipt on message arrive

* add event readers component

* add reply, read receipt, source delete opt

* bug fixes

* update timeline on delete & show reason

* fix empty reaction container style

* show msg selection effect on msg option open

* add report message options

* add options to send quick reactions

* add emoji board in message options

* add reaction viewer

* fix styles

* show view reaction in msg options menu

* fix spacing between two msg by same person

* add option menu in other rendered event

* handle m.room.encrypted messages

* fix italic reply text overflow cut

* handle encrypted sticker messages

* remove console log

* prevent message context menu with alt key pressed

* make mentions clickable in messages

* add options to show and hidden events in timeline

* add option to disable media autoload

* remove old emojiboard opener

* add options to use system emoji

* refresh timeline on reset

* fix stuck typing member in member drawer

src/app/utils/dom.ts

@@ -7,7 +7,7 @@ export const editableActiveElement = (): boolean =>
   !!document.activeElement &&
   /^(input)|(textarea)$/.test(document.activeElement.nodeName.toLowerCase());
 
-export const inVisibleScrollArea = (
+export const isIntersectingScrollView = (
   scrollElement: HTMLElement,
   childElement: HTMLElement
 ): boolean => {
@@ -18,10 +18,25 @@ export const inVisibleScrollArea = (
   const childBottom = childTop + childElement.clientHeight;
 
   if (childTop >= scrollTop && childTop < scrollBottom) return true;
-  if (childTop < scrollTop && childBottom > scrollTop) return true;
+  if (childBottom > scrollTop && childBottom <= scrollBottom) return true;
+  if (childTop < scrollTop && childBottom > scrollBottom) return true;
   return false;
 };
 
+export const isInScrollView = (scrollElement: HTMLElement, childElement: HTMLElement): boolean => {
+  const scrollTop = scrollElement.offsetTop + scrollElement.scrollTop;
+  const scrollBottom = scrollTop + scrollElement.offsetHeight;
+  return (
+    childElement.offsetTop >= scrollTop &&
+    childElement.offsetTop + childElement.offsetHeight <= scrollBottom
+  );
+};
+
+export const canFitInScrollView = (
+  scrollElement: HTMLElement,
+  childElement: HTMLElement
+): boolean => childElement.offsetHeight < scrollElement.offsetHeight;
+
 export type FilesOrFile<T extends boolean | undefined = undefined> = T extends true ? File[] : File;
 
 export const selectFile = <M extends boolean | undefined = undefined>(
@@ -131,3 +146,43 @@ export const getThumbnail = (
       resolve(thumbnail ?? undefined);
     }, thumbnailMimeType ?? 'image/jpeg');
   });
+
+export type ScrollInfo = {
+  offsetTop: number;
+  top: number;
+  height: number;
+  viewHeight: number;
+  scrollable: boolean;
+};
+export const getScrollInfo = (target: HTMLElement): ScrollInfo => ({
+  offsetTop: Math.round(target.offsetTop),
+  top: Math.round(target.scrollTop),
+  height: Math.round(target.scrollHeight),
+  viewHeight: Math.round(target.offsetHeight),
+  scrollable: target.scrollHeight > target.offsetHeight,
+});
+
+export const scrollToBottom = (scrollEl: HTMLElement, behavior?: 'auto' | 'instant' | 'smooth') => {
+  scrollEl.scrollTo({
+    top: Math.round(scrollEl.scrollHeight - scrollEl.offsetHeight),
+    behavior,
+  });
+};
+
+export const copyToClipboard = (text: string) => {
+  if (navigator.clipboard) {
+    navigator.clipboard.writeText(text);
+  } else {
+    const host = document.body;
+    const copyInput = document.createElement('input');
+    copyInput.style.position = 'fixed';
+    copyInput.style.opacity = '0';
+    copyInput.value = text;
+    host.append(copyInput);
+
+    copyInput.select();
+    copyInput.setSelectionRange(0, 99999);
+    document.execCommand('Copy');
+    copyInput.remove();
+  }
+};