platform/plugins/chunter-resources/src/components/ChannelScrollView.svelte
Kristina e202027d2b
Add chat fixes (#5437)
Signed-off-by: Kristina Fefelova <kristin.fefelova@gmail.com>
2024-04-23 22:44:49 +07:00

670 lines
18 KiB
Svelte

<!--
// Copyright © 2023 Hardcore Engineering Inc.
//
// Licensed under the Eclipse Public License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
-->
<script lang="ts">
import { Class, Doc, getDay, Ref, Timestamp } from '@hcengineering/core'
import { getClient } from '@hcengineering/presentation'
import activity, {
ActivityExtension,
ActivityMessage,
ActivityMessagesFilter,
DisplayActivityMessage
} from '@hcengineering/activity'
import { Loading, Scroller, ScrollParams } from '@hcengineering/ui'
import {
ActivityExtension as ActivityExtensionComponent,
ActivityMessagePresenter
} from '@hcengineering/activity-resources'
import { InboxNotificationsClientImpl } from '@hcengineering/notification-resources'
import { get } from 'svelte/store'
import { tick, beforeUpdate, afterUpdate } from 'svelte'
import { getResource } from '@hcengineering/platform'
import ActivityMessagesSeparator from './ChannelMessagesSeparator.svelte'
import { filterChatMessages, getClosestDate, readChannelMessages } from '../utils'
import HistoryLoading from './LoadingHistory.svelte'
import { ChannelDataProvider } from '../channelDataProvider'
import JumpToDateSelector from './JumpToDateSelector.svelte'
export let provider: ChannelDataProvider
export let object: Doc | undefined
export let objectClass: Ref<Class<Doc>>
export let objectId: Ref<Doc>
export let selectedMessageId: Ref<ActivityMessage> | undefined = undefined
export let scrollElement: HTMLDivElement | undefined = undefined
export let startFromBottom = false
export let selectedFilters: Ref<ActivityMessagesFilter>[] = []
export let withDates: boolean = true
export let collection: string | undefined = undefined
export let showEmbedded = false
export let skipLabels = false
export let loadMoreAllowed = true
export let isAsideOpened = false
const dateSelectorHeight = 30
const headerHeight = 52
const minMsgHeightRem = 4.375
const client = getClient()
const inboxClient = InboxNotificationsClientImpl.getClient()
const contextByDocStore = inboxClient.contextByDoc
let filters: ActivityMessagesFilter[] = []
const filterResources = new Map<
Ref<ActivityMessagesFilter>,
(message: ActivityMessage, _class?: Ref<Doc>) => boolean
>()
const messagesStore = provider.messagesStore
const isLoadingStore = provider.isLoadingStore
const isLoadingMoreStore = provider.isLoadingMoreStore
const newTimestampStore = provider.newTimestampStore
const datesStore = provider.datesStore
let messages: ActivityMessage[] = []
let displayMessages: DisplayActivityMessage[] = []
let extensions: ActivityExtension[] = []
let scroller: Scroller | undefined = undefined
let separatorElement: HTMLDivElement | undefined = undefined
let scrollContentBox: HTMLDivElement | undefined = undefined
let autoscroll = false
let shouldScrollToNew = false
let shouldWaitAndRead = false
let isScrollInitialized = false
let selectedDate: Timestamp | undefined = undefined
let dateToJump: Timestamp | undefined = undefined
let messagesCount = 0
let wasAsideOpened = isAsideOpened
$: messages = $messagesStore
$: isLoading = $isLoadingStore
$: extensions = client.getModel().findAllSync(activity.class.ActivityExtension, { ofClass: objectClass })
$: notifyContext = $contextByDocStore.get(objectId)
void client
.getModel()
.findAll(activity.class.ActivityMessagesFilter, {})
.then(async (res) => {
filters = res
for (const filter of filters) {
filterResources.set(filter._id, await getResource(filter.filter))
}
})
$: displayMessages = filterChatMessages(messages, filters, filterResources, objectClass, selectedFilters)
inboxClient.inboxNotificationsByContext.subscribe(() => {
readViewportMessages()
})
function scrollToBottom (afterScrollFn?: () => void): void {
if (scroller !== undefined && scrollElement !== undefined) {
scroller.scrollBy(scrollElement.scrollHeight)
updateSelectedDate()
afterScrollFn?.()
}
}
function scrollToSeparator (): void {
if (separatorElement && scrollElement) {
const messagesElements = scrollContentBox?.getElementsByClassName('activityMessage')
const messagesHeight = displayMessages
.slice(separatorIndex)
.reduce((res, msg) => res + (messagesElements?.[msg._id as any]?.clientHeight ?? 0), 0)
separatorElement.scrollIntoView()
if (messagesHeight >= scrollElement.clientHeight) {
scroller?.scrollBy(-50)
}
updateShouldScrollToNew()
readViewportMessages()
}
}
function scrollToMessage () {
if (!selectedMessageId) {
return
}
if (!scrollElement || !scrollContentBox) {
setTimeout(scrollToMessage, 50)
}
const messagesElements = scrollContentBox?.getElementsByClassName('activityMessage')
const msgElement = messagesElements?.[selectedMessageId as any]
if (!msgElement) {
if (displayMessages.some(({ _id }) => _id === selectedMessageId)) {
setTimeout(scrollToMessage, 50)
}
return
}
msgElement.scrollIntoView()
readViewportMessages()
}
function isDateRendered (date: Timestamp): boolean {
const day = getDay(date)
return document.getElementById(day.toString()) != null
}
function jumpToDate (e: CustomEvent): void {
const date = e.detail.date
if (!date || !scrollElement) {
return
}
const closestDate = getClosestDate(date, get(provider.datesStore))
if (closestDate === undefined) {
return
}
if (isDateRendered(closestDate)) {
scrollToDate(closestDate)
} else {
void provider.jumpToDate(closestDate)
dateToJump = closestDate
}
}
function scrollToDate (date: Timestamp): void {
autoscroll = false
dateToJump = undefined
shouldWaitAndRead = false
const day = getDay(date)
const element = document.getElementById(day.toString())
let offset = element?.offsetTop
if (!offset || !scroller) {
return
}
offset = offset - headerHeight - dateSelectorHeight / 2
scroller?.scroll(offset)
}
function updateShouldScrollToNew (): void {
if (scrollElement) {
const { offsetHeight, scrollHeight, scrollTop } = scrollElement
const offset = 100
shouldScrollToNew = scrollHeight <= scrollTop + offsetHeight + offset
}
}
function shouldLoadMoreUp (): boolean {
if (!scrollElement) {
return false
}
return scrollElement.scrollTop === 0
}
function shouldLoadMoreDown (): boolean {
if (!scrollElement) {
return false
}
const { scrollHeight, scrollTop, clientHeight } = scrollElement
return scrollTop + clientHeight === scrollHeight
}
let scrollToRestore = 0
function loadMore (): void {
if (!loadMoreAllowed || $isLoadingMoreStore || !scrollElement || isInitialScrolling) {
return
}
const minMsgHeightPx = minMsgHeightRem * parseFloat(getComputedStyle(document.documentElement).fontSize)
const maxMsgPerScreen = Math.ceil(scrollElement.clientHeight / minMsgHeightPx)
const limit = Math.max(maxMsgPerScreen, provider.limit)
if (shouldLoadMoreUp() && scrollElement && provider.canLoadMore('backward', messages[0]?.createdOn)) {
shouldScrollToNew = false
scrollToRestore = scrollElement.scrollHeight
void provider.loadMore('backward', messages[0]?.createdOn, limit)
} else if (shouldLoadMoreDown() && provider.canLoadMore('forward', messages[messages.length - 1]?.createdOn)) {
shouldScrollToNew = false
void provider.loadMore('forward', messages[messages.length - 1]?.createdOn, limit)
isScrollAtBottom = false
}
}
function handleScroll ({ autoScrolling }: ScrollParams): void {
saveScrollPosition()
if (autoScrolling) {
return
}
shouldWaitAndRead = false
autoscroll = false
updateShouldScrollToNew()
loadMore()
updateSelectedDate()
readViewportMessages()
}
function isLastMessageViewed (): boolean {
if (!scrollElement) {
return false
}
const last = displayMessages[displayMessages.length - 1]
if (last === undefined) {
return false
}
const containerRect = scrollElement.getBoundingClientRect()
const messagesElements = scrollContentBox?.getElementsByClassName('activityMessage')
const msgElement = messagesElements?.[last._id as any]
if (!msgElement) {
return false
}
return messageInView(msgElement, containerRect)
}
function messageInView (msgElement: Element, containerRect: DOMRect): boolean {
const messageRect = msgElement.getBoundingClientRect()
return messageRect.top >= containerRect.top && messageRect.bottom - messageRect.height / 2 <= containerRect.bottom
}
function readViewportMessages (): void {
if (!scrollElement || !scrollContentBox) {
return
}
const containerRect = scrollElement.getBoundingClientRect()
const messagesToRead: DisplayActivityMessage[] = []
const messagesElements = scrollContentBox?.getElementsByClassName('activityMessage')
for (const message of displayMessages) {
const msgElement = messagesElements?.[message._id as any]
if (!msgElement) {
continue
}
if (messageInView(msgElement, containerRect)) {
messagesToRead.push(message)
}
}
void readChannelMessages(messagesToRead, notifyContext)
}
function updateSelectedDate (): void {
if (!withDates) {
return
}
if (!scrollContentBox || !scrollElement) {
return
}
const containerRect = scrollElement.getBoundingClientRect()
const messagesElements = scrollContentBox?.getElementsByClassName('activityMessage')
if (messagesElements === undefined) {
return
}
const reversedDates = [...get(datesStore)].reverse()
for (const message of displayMessages) {
const msgElement = messagesElements?.[message._id as any]
if (!msgElement) {
continue
}
const createdOn = message.createdOn
if (createdOn === undefined) {
continue
}
const messageRect = msgElement.getBoundingClientRect()
const isInView =
messageRect.top > 0 &&
messageRect.top < containerRect.bottom &&
messageRect.bottom - headerHeight - 2 * dateSelectorHeight > 0 &&
messageRect.bottom <= containerRect.bottom
if (isInView) {
selectedDate = reversedDates.find((date) => date <= createdOn)
break
}
}
if (selectedDate) {
const day = getDay(selectedDate)
const dateElement = document.getElementById(day.toString())
let isElementVisible = false
if (dateElement) {
const elementRect = dateElement.getBoundingClientRect()
isElementVisible =
elementRect.top + dateSelectorHeight / 2 >= containerRect.top && elementRect.bottom <= containerRect.bottom
}
if (isElementVisible) {
selectedDate = undefined
}
}
}
$: newTimestamp = $newTimestampStore
$: separatorIndex =
newTimestamp !== undefined
? displayMessages.findIndex((message) => (message.createdOn ?? 0) >= (newTimestamp ?? 0))
: -1
$: void initializeScroll(isLoading, separatorElement, separatorIndex)
let isInitialScrolling = true
async function initializeScroll (isLoading: boolean, separatorElement?: HTMLDivElement, separatorIndex?: number) {
if (isLoading || isScrollInitialized) {
return
}
updateSelectedDate()
if (selectedMessageId !== undefined && messages.some(({ _id }) => _id === selectedMessageId)) {
isScrollInitialized = true
await wait()
scrollToMessage()
isInitialScrolling = false
} else if (separatorIndex === -1) {
await wait()
isScrollInitialized = true
shouldWaitAndRead = true
autoscroll = true
shouldScrollToNew = true
waitLastMessageRenderAndRead(() => {
isInitialScrolling = false
autoscroll = false
})
} else if (separatorElement) {
isScrollInitialized = true
await wait()
scrollToSeparator()
isInitialScrolling = false
}
}
function waitLastMessageRenderAndRead (onComplete?: () => void) {
if (isLastMessageViewed()) {
readViewportMessages()
shouldScrollToNew = true
shouldWaitAndRead = false
onComplete?.()
} else if (shouldWaitAndRead && messages.length > 0) {
shouldWaitAndRead = false
setTimeout(() => {
waitLastMessageRenderAndRead(onComplete)
}, 500)
} else {
onComplete?.()
}
}
function scrollToNewMessages (): void {
if (!scrollElement || !shouldScrollToNew) {
return
}
scrollToBottom()
readViewportMessages()
}
async function wait (): Promise<void> {
// One tick is not enough for messages to be rendered,
// I think this is due to the fact that we are using a Component, which takes some time to load,
// because after one tick I see spinners from Component
await tick() // wait until the DOM is updated
await tick() // wait until the DOM is updated
}
async function restoreScroll () {
if (!scrollElement || !scroller) {
scrollToRestore = 0
return
}
await wait()
const delta = scrollElement.scrollHeight - scrollToRestore
scroller.scrollBy(delta)
scrollToRestore = 0
dateToJump = 0
autoscroll = false
shouldWaitAndRead = false
}
async function handleMessagesUpdated (newCount: number): Promise<void> {
if (newCount === messagesCount) {
return
}
if (scrollToRestore > 0) {
void restoreScroll()
} else if (dateToJump !== undefined) {
await wait()
scrollToDate(dateToJump)
} else if (newCount > messagesCount) {
await wait()
scrollToNewMessages()
}
messagesCount = newCount
}
$: void handleMessagesUpdated(displayMessages.length)
function handleResize (): void {
if (isInitialScrolling || !isScrollInitialized) {
return
}
if (shouldScrollToNew) {
scrollToBottom()
}
loadMore()
}
let prevScrollHeight = 0
let isScrollAtBottom = false
function saveScrollPosition (): void {
if (!scrollElement) {
return
}
const { offsetHeight, scrollHeight, scrollTop } = scrollElement
prevScrollHeight = scrollHeight
isScrollAtBottom = scrollHeight === scrollTop + offsetHeight
}
beforeUpdate(() => {
if (!scrollElement) return
if (scrollElement.scrollHeight === scrollElement.clientHeight) {
isScrollAtBottom = true
}
})
afterUpdate(() => {
if (!scrollElement) return
const { scrollHeight } = scrollElement
if (!isInitialScrolling && prevScrollHeight < scrollHeight && isScrollAtBottom) {
scrollToBottom()
}
})
async function compensateAside (isOpened: boolean) {
if (!isInitialScrolling && isScrollAtBottom && !wasAsideOpened && isOpened) {
await wait()
scrollToBottom()
}
wasAsideOpened = isOpened
}
$: void compensateAside(isAsideOpened)
</script>
{#if isLoading}
<Loading />
{:else}
<div class="flex-col h-full relative">
{#if startFromBottom}
<div class="grower" />
{/if}
{#if withDates && displayMessages.length > 0 && selectedDate}
<div class="selectedDate">
<JumpToDateSelector {selectedDate} fixed on:jumpToDate={jumpToDate} />
</div>
{/if}
{#if isInitialScrolling}
<div class="overlay">
<Loading />
</div>
{/if}
<Scroller
{autoscroll}
bottomStart={startFromBottom}
bind:this={scroller}
bind:divScroll={scrollElement}
bind:divBox={scrollContentBox}
noStretch={false}
onScroll={handleScroll}
onResize={handleResize}
>
{#if loadMoreAllowed && provider.canLoadMore('backward', messages[0]?.createdOn)}
<HistoryLoading isLoading={$isLoadingMoreStore} />
{/if}
<slot name="header" />
{#each displayMessages as message, index (message._id)}
{@const isSelected = message._id === selectedMessageId}
{#if separatorIndex === index}
<ActivityMessagesSeparator bind:element={separatorElement} label={activity.string.New} />
{/if}
{#if withDates && message.createdOn && $datesStore.includes(message.createdOn)}
<JumpToDateSelector selectedDate={message.createdOn} on:jumpToDate={jumpToDate} />
{/if}
<div class="msg">
<ActivityMessagePresenter
value={message}
skipLabel={skipLabels}
{showEmbedded}
hoverStyles="filledHover"
isHighlighted={isSelected}
shouldScroll={isSelected}
withShowMore={false}
attachmentImageSize="x-large"
showLinksPreview={false}
hideLink
/>
</div>
{/each}
{#if loadMoreAllowed && provider.canLoadMore('forward', messages[messages.length - 1]?.createdOn)}
<HistoryLoading isLoading={$isLoadingMoreStore} />
{/if}
</Scroller>
</div>
{#if object}
<div class="ref-input">
<ActivityExtensionComponent
kind="input"
{extensions}
props={{ object, boundary: scrollElement, collection, autofocus: true }}
/>
</div>
{/if}
{/if}
<style lang="scss">
.msg {
margin: 0;
min-height: 4.375rem;
height: auto;
display: flex;
flex-direction: column;
flex-shrink: 0;
}
.grower {
flex-grow: 10;
flex-shrink: 5;
}
.ref-input {
margin: 1.25rem 1rem;
}
.overlay {
width: 100%;
height: 100%;
position: absolute;
background: var(--theme-panel-color);
z-index: 100;
display: flex;
align-items: center;
justify-content: center;
}
.selectedDate {
position: absolute;
top: 0;
left: 0;
right: 0;
}
</style>