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diff --git a/src/components/chat/chat.js b/src/components/chat/chat.js
index 5a5c37b62a..79f24771a4 100644
--- a/src/components/chat/chat.js
+++ b/src/components/chat/chat.js
@@ -1,346 +1,348 @@
import _ from 'lodash'
import { WSConnectionStatus } from '../../services/api/api.service.js'
import { mapGetters, mapState } from 'vuex'
import ChatMessage from '../chat_message/chat_message.vue'
import PostStatusForm from '../post_status_form/post_status_form.vue'
import ChatTitle from '../chat_title/chat_title.vue'
import chatService from '../../services/chat_service/chat_service.js'
import { promiseInterval } from '../../services/promise_interval/promise_interval.js'
import { getScrollPosition, getNewTopPosition, isBottomedOut, isScrollable } from './chat_layout_utils.js'
import { library } from '@fortawesome/fontawesome-svg-core'
import {
faChevronDown,
faChevronLeft
} from '@fortawesome/free-solid-svg-icons'
import { buildFakeMessage } from '../../services/chat_utils/chat_utils.js'
library.add(
faChevronDown,
faChevronLeft
)
const BOTTOMED_OUT_OFFSET = 10
const JUMP_TO_BOTTOM_BUTTON_VISIBILITY_OFFSET = 10
const SAFE_RESIZE_TIME_OFFSET = 100
const MARK_AS_READ_DELAY = 1500
const MAX_RETRIES = 10
const Chat = {
components: {
ChatMessage,
ChatTitle,
PostStatusForm
},
data () {
return {
jumpToBottomButtonVisible: false,
hoveredMessageChainId: undefined,
lastScrollPosition: {},
scrollableContainerHeight: '100%',
errorLoadingChat: false,
messageRetriers: {}
}
},
created () {
this.startFetching()
window.addEventListener('resize', this.handleResize)
},
mounted () {
window.addEventListener('scroll', this.handleScroll)
if (typeof document.hidden !== 'undefined') {
document.addEventListener('visibilitychange', this.handleVisibilityChange, false)
}
this.$nextTick(() => {
this.handleResize()
})
},
unmounted () {
window.removeEventListener('scroll', this.handleScroll)
+ window.removeEventListener('resize', this.handleResize)
if (typeof document.hidden !== 'undefined') document.removeEventListener('visibilitychange', this.handleVisibilityChange, false)
this.$store.dispatch('clearCurrentChat')
},
computed: {
recipient () {
return this.currentChat && this.currentChat.account
},
recipientId () {
return this.$route.params.recipient_id
},
formPlaceholder () {
if (this.recipient) {
return this.$t('chats.message_user', { nickname: this.recipient.screen_name_ui })
} else {
return ''
}
},
chatViewItems () {
return chatService.getView(this.currentChatMessageService)
},
newMessageCount () {
return this.currentChatMessageService && this.currentChatMessageService.newMessageCount
},
streamingEnabled () {
return this.mergedConfig.useStreamingApi && this.mastoUserSocketStatus === WSConnectionStatus.JOINED
},
...mapGetters([
'currentChat',
'currentChatMessageService',
'findOpenedChatByRecipientId',
'mergedConfig'
]),
...mapState({
backendInteractor: state => state.api.backendInteractor,
mastoUserSocketStatus: state => state.api.mastoUserSocketStatus,
mobileLayout: state => state.interface.layoutType === 'mobile',
currentUser: state => state.users.currentUser
})
},
watch: {
chatViewItems () {
// We don't want to scroll to the bottom on a new message when the user is viewing older messages.
// Therefore we need to know whether the scroll position was at the bottom before the DOM update.
const bottomedOutBeforeUpdate = this.bottomedOut(BOTTOMED_OUT_OFFSET)
this.$nextTick(() => {
if (bottomedOutBeforeUpdate) {
this.scrollDown()
}
})
},
$route: function () {
this.startFetching()
},
mastoUserSocketStatus (newValue) {
if (newValue === WSConnectionStatus.JOINED) {
this.fetchChat({ isFirstFetch: true })
}
}
},
methods: {
// Used to animate the avatar near the first message of the message chain when any message belonging to the chain is hovered
onMessageHover ({ isHovered, messageChainId }) {
this.hoveredMessageChainId = isHovered ? messageChainId : undefined
},
onFilesDropped () {
this.$nextTick(() => {
this.handleResize()
})
},
handleVisibilityChange () {
this.$nextTick(() => {
if (!document.hidden && this.bottomedOut(BOTTOMED_OUT_OFFSET)) {
this.scrollDown({ forceRead: true })
}
})
},
// "Sticks" scroll to bottom instead of top, helps with OSK resizing the viewport
handleResize (opts = {}) {
- const { expand = false, delayed = false } = opts
+ const { delayed = false } = opts
if (delayed) {
setTimeout(() => {
this.handleResize({ ...opts, delayed: false })
}, SAFE_RESIZE_TIME_OFFSET)
return
}
this.$nextTick(() => {
const { offsetHeight = undefined } = getScrollPosition()
- const diff = this.lastScrollPosition.offsetHeight - offsetHeight
- if (diff !== 0 || (!this.bottomedOut() && expand)) {
+ const diff = offsetHeight - this.lastScrollPosition.offsetHeight
+ if (diff !== 0 && !this.bottomedOut()) {
this.$nextTick(() => {
- window.scrollTo({ top: window.scrollY + diff })
+ window.scrollBy({ top: -Math.trunc(diff) })
})
}
this.lastScrollPosition = getScrollPosition()
})
},
scrollDown (options = {}) {
const { behavior = 'auto', forceRead = false } = options
this.$nextTick(() => {
window.scrollTo({ top: document.documentElement.scrollHeight, behavior })
})
if (forceRead) {
this.readChat()
}
},
readChat () {
if (!(this.currentChatMessageService && this.currentChatMessageService.maxId)) { return }
if (document.hidden) { return }
const lastReadId = this.currentChatMessageService.maxId
this.$store.dispatch('readChat', {
id: this.currentChat.id,
lastReadId
})
},
bottomedOut (offset) {
return isBottomedOut(offset)
},
reachedTop () {
return window.scrollY <= 0
},
cullOlderCheck () {
window.setTimeout(() => {
if (this.bottomedOut(JUMP_TO_BOTTOM_BUTTON_VISIBILITY_OFFSET)) {
this.$store.dispatch('cullOlderMessages', this.currentChatMessageService.chatId)
}
}, 5000)
},
handleScroll: _.throttle(function () {
+ this.lastScrollPosition = getScrollPosition()
if (!this.currentChat) { return }
if (this.reachedTop()) {
this.fetchChat({ maxId: this.currentChatMessageService.minId })
} else if (this.bottomedOut(JUMP_TO_BOTTOM_BUTTON_VISIBILITY_OFFSET)) {
this.jumpToBottomButtonVisible = false
this.cullOlderCheck()
if (this.newMessageCount > 0) {
// Use a delay before marking as read to prevent situation where new messages
// arrive just as you're leaving the view and messages that you didn't actually
// get to see get marked as read.
window.setTimeout(() => {
// Don't mark as read if the element doesn't exist, user has left chat view
if (this.$el) this.readChat()
}, MARK_AS_READ_DELAY)
}
} else {
this.jumpToBottomButtonVisible = true
}
}, 200),
handleScrollUp (positionBeforeLoading) {
const positionAfterLoading = getScrollPosition()
window.scrollTo({
top: getNewTopPosition(positionBeforeLoading, positionAfterLoading)
})
},
fetchChat ({ isFirstFetch = false, fetchLatest = false, maxId }) {
const chatMessageService = this.currentChatMessageService
if (!chatMessageService) { return }
if (fetchLatest && this.streamingEnabled) { return }
const chatId = chatMessageService.chatId
const fetchOlderMessages = !!maxId
const sinceId = fetchLatest && chatMessageService.maxId
return this.backendInteractor.chatMessages({ id: chatId, maxId, sinceId })
.then((messages) => {
// Clear the current chat in case we're recovering from a ws connection loss.
if (isFirstFetch) {
chatService.clear(chatMessageService)
}
const positionBeforeUpdate = getScrollPosition()
this.$store.dispatch('addChatMessages', { chatId, messages }).then(() => {
this.$nextTick(() => {
if (fetchOlderMessages) {
this.handleScrollUp(positionBeforeUpdate)
}
// In vertical screens, the first batch of fetched messages may not always take the
// full height of the scrollable container.
// If this is the case, we want to fetch the messages until the scrollable container
// is fully populated so that the user has the ability to scroll up and load the history.
if (!isScrollable() && messages.length > 0) {
this.fetchChat({ maxId: this.currentChatMessageService.minId })
}
})
})
})
},
async startFetching () {
let chat = this.findOpenedChatByRecipientId(this.recipientId)
if (!chat) {
try {
chat = await this.backendInteractor.getOrCreateChat({ accountId: this.recipientId })
} catch (e) {
console.error('Error creating or getting a chat', e)
this.errorLoadingChat = true
}
}
if (chat) {
this.$nextTick(() => {
this.scrollDown({ forceRead: true })
})
this.$store.dispatch('addOpenedChat', { chat })
this.doStartFetching()
}
},
doStartFetching () {
this.$store.dispatch('startFetchingCurrentChat', {
fetcher: () => promiseInterval(() => this.fetchChat({ fetchLatest: true }), 5000)
})
this.fetchChat({ isFirstFetch: true })
},
handleAttachmentPosting () {
this.$nextTick(() => {
this.handleResize()
// When the posting form size changes because of a media attachment, we need an extra resize
// to account for the potential delay in the DOM update.
this.scrollDown({ forceRead: true })
})
},
sendMessage ({ status, media, idempotencyKey }) {
const params = {
id: this.currentChat.id,
content: status,
idempotencyKey
}
if (media[0]) {
params.mediaId = media[0].id
}
const fakeMessage = buildFakeMessage({
attachments: media,
chatId: this.currentChat.id,
content: status,
userId: this.currentUser.id,
idempotencyKey
})
this.$store.dispatch('addChatMessages', {
chatId: this.currentChat.id,
messages: [fakeMessage]
}).then(() => {
this.handleAttachmentPosting()
})
return this.doSendMessage({ params, fakeMessage, retriesLeft: MAX_RETRIES })
},
doSendMessage ({ params, fakeMessage, retriesLeft = MAX_RETRIES }) {
if (retriesLeft <= 0) return
this.backendInteractor.sendChatMessage(params)
.then(data => {
this.$store.dispatch('addChatMessages', {
chatId: this.currentChat.id,
updateMaxId: false,
messages: [{ ...data, fakeId: fakeMessage.id }]
})
return data
})
.catch(error => {
console.error('Error sending message', error)
this.$store.dispatch('handleMessageError', {
chatId: this.currentChat.id,
fakeId: fakeMessage.id,
isRetry: retriesLeft !== MAX_RETRIES
})
if ((error.statusCode >= 500 && error.statusCode < 600) || error.message === 'Failed to fetch') {
this.messageRetriers[fakeMessage.id] = setTimeout(() => {
this.doSendMessage({ params, fakeMessage, retriesLeft: retriesLeft - 1 })
}, 1000 * (2 ** (MAX_RETRIES - retriesLeft)))
}
return {}
})
return Promise.resolve(fakeMessage)
},
goBack () {
this.$router.push({ name: 'chats', params: { username: this.currentUser.screen_name } })
}
}
}
export default Chat

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