Package-level declarations
Types
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data class MessagesLazyListState(val lazyListState: LazyListState, messageOffsetHandler: MessagesLazyListState.MessageOffsetHandler = defaultOffsetHandler)
Provides a wrapper around lazy list state to be used with Messages composable. It is used to keep track of the focused message offset needed to center the focused message in the scroll list.
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Represents where the thread messages start.
Properties
Functions
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fun DefaultMessageItemCenterContent(modifier: Modifier = Modifier, messageItem: MessageItemState, messageContentFactory: MessageContentFactory = ChatTheme.messageContentFactory, onLongItemClick: (Message) -> Unit = {}, onGiphyActionClick: (GiphyAction) -> Unit = {}, onQuotedMessageClick: (Message) -> Unit = {}, onLinkClick: (Message, String) -> Unit? = null, onUserMentionClick: (User) -> Unit = {}, onMediaGalleryPreviewResult: (MediaGalleryPreviewResult?) -> Unit = {}, onPollUpdated: (Message, Poll) -> Unit, onCastVote: (Message, Poll, Option) -> Unit, onRemoveVote: (Message, Poll, Vote) -> Unit, selectPoll: (Message, Poll, PollSelectionType) -> Unit, onAddAnswer: (message: Message, poll: Poll, answer: String) -> Unit, onClosePoll: (String) -> Unit, onAddPollOption: (poll: Poll, option: String) -> Unit)
Represents the default content shown at the center of the message list item.
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fun EmojiMessageContent(messageItem: MessageItemState, modifier: Modifier = Modifier, onLongItemClick: (Message) -> Unit = {}, onGiphyActionClick: (GiphyAction) -> Unit = {}, onQuotedMessageClick: (Message) -> Unit = {}, onMediaGalleryPreviewResult: (MediaGalleryPreviewResult?) -> Unit = {})
Message content when the message consists only of emoji.
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fun MessageContainer(messageListItemState: MessageListItemState, reactionSorting: ReactionSorting, messageContentFactory: MessageContentFactory = ChatTheme.messageContentFactory, onLongItemClick: (Message) -> Unit = {}, onReactionsClick: (Message) -> Unit = {}, onThreadClick: (Message) -> Unit = {}, onPollUpdated: (Message, Poll) -> Unit = { _, _ -> }, onCastVote: (Message, Poll, Option) -> Unit = { _, _, _ -> }, onRemoveVote: (Message, Poll, Vote) -> Unit = { _, _, _ -> }, selectPoll: (Message, Poll, PollSelectionType) -> Unit = { _, _, _ -> }, onAddAnswer: (message: Message, poll: Poll, answer: String) -> Unit = { _, _, _ -> }, onClosePoll: (String) -> Unit = {}, onAddPollOption: (poll: Poll, option: String) -> Unit = { _, _ -> }, onGiphyActionClick: (GiphyAction) -> Unit = {}, onQuotedMessageClick: (Message) -> Unit = {}, onUserAvatarClick: (User) -> Unit? = null, onLinkClick: (Message, String) -> Unit? = null, onMediaGalleryPreviewResult: (MediaGalleryPreviewResult?) -> Unit = {}, onUserMentionClick: (User) -> Unit = {}, dateSeparatorContent: @Composable (DateSeparatorItemState) -> Unit = {
DefaultMessageDateSeparatorContent(dateSeparator = it)
}, unreadSeparatorContent: @Composable (UnreadSeparatorItemState) -> Unit = {
DefaultMessageUnreadSeparatorContent(unreadSeparatorItemState = it)
}, threadSeparatorContent: @Composable (ThreadDateSeparatorItemState) -> Unit = {
DefaultMessageThreadSeparatorContent(threadSeparator = it)
}, systemMessageContent: @Composable (SystemMessageItemState) -> Unit = {
DefaultSystemMessageContent(systemMessageState = it)
}, moderatedMessageContent: @Composable (ModeratedMessageItemState) -> Unit = {
DefaultMessageModeratedContent(moderatedMessageItemState = it)
}, messageItemContent: @Composable (MessageItemState) -> Unit = {
DefaultMessageItem(
messageItem = it,
messageContentFactory = messageContentFactory,
reactionSorting = reactionSorting,
onLongItemClick = onLongItemClick,
onReactionsClick = onReactionsClick,
onThreadClick = onThreadClick,
onPollUpdated = onPollUpdated,
onCastVote = onCastVote,
onRemoveVote = onRemoveVote,
selectPoll = selectPoll,
onClosePoll = onClosePoll,
onAddPollOption = onAddPollOption,
onGiphyActionClick = onGiphyActionClick,
onMediaGalleryPreviewResult = onMediaGalleryPreviewResult,
onQuotedMessageClick = onQuotedMessageClick,
onUserAvatarClick = {
onUserAvatarClick?.invoke(it.message.user)
},
onLinkClick = onLinkClick,
onUserMentionClick = onUserMentionClick,
onAddAnswer = onAddAnswer,
)
}, typingIndicatorContent: @Composable (TypingItemState) -> Unit = { }, emptyThreadPlaceholderItemContent: @Composable (EmptyThreadPlaceholderItemState) -> Unit = { }, startOfTheChannelItemState: @Composable (StartOfTheChannelItemState) -> Unit = { })
Represents the message item container that allows us to customize each type of item in the MessageList.
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fun MessageItem(messageItem: MessageItemState, reactionSorting: ReactionSorting, onLongItemClick: (Message) -> Unit, modifier: Modifier = Modifier, messageContentFactory: MessageContentFactory = ChatTheme.messageContentFactory, onReactionsClick: (Message) -> Unit = {}, onThreadClick: (Message) -> Unit = {}, onPollUpdated: (Message, Poll) -> Unit = { _, _ -> }, onCastVote: (Message, Poll, Option) -> Unit = { _, _, _ -> }, onRemoveVote: (Message, Poll, Vote) -> Unit = { _, _, _ -> }, selectPoll: (Message, Poll, PollSelectionType) -> Unit = { _, _, _ -> }, onAddAnswer: (message: Message, poll: Poll, answer: String) -> Unit = { _, _, _ -> }, onClosePoll: (String) -> Unit = {}, onAddPollOption: (poll: Poll, option: String) -> Unit = { _, _ -> }, onGiphyActionClick: (GiphyAction) -> Unit = {}, onQuotedMessageClick: (Message) -> Unit = {}, onUserAvatarClick: () -> Unit? = null, onLinkClick: (Message, String) -> Unit? = null, onUserMentionClick: (User) -> Unit = {}, onMediaGalleryPreviewResult: (MediaGalleryPreviewResult?) -> Unit = {}, leadingContent: @Composable RowScope.(MessageItemState) -> Unit = {
DefaultMessageItemLeadingContent(
messageItem = it,
onUserAvatarClick = onUserAvatarClick,
)
}, headerContent: @Composable ColumnScope.(MessageItemState) -> Unit = {
DefaultMessageItemHeaderContent(
messageItem = it,
reactionSorting = reactionSorting,
onReactionsClick = onReactionsClick,
)
}, centerContent: @Composable ColumnScope.(MessageItemState) -> Unit = {
DefaultMessageItemCenterContent(
messageItem = it,
onLongItemClick = onLongItemClick,
messageContentFactory = messageContentFactory,
onMediaGalleryPreviewResult = onMediaGalleryPreviewResult,
onGiphyActionClick = onGiphyActionClick,
onQuotedMessageClick = onQuotedMessageClick,
onLinkClick = onLinkClick,
onUserMentionClick = onUserMentionClick,
onPollUpdated = onPollUpdated,
onCastVote = onCastVote,
onRemoveVote = onRemoveVote,
selectPoll = selectPoll,
onAddAnswer = onAddAnswer,
onClosePoll = onClosePoll,
onAddPollOption = onAddPollOption,
)
}, footerContent: @Composable ColumnScope.(MessageItemState) -> Unit = {
DefaultMessageItemFooterContent(messageItem = it, messageContentFactory = messageContentFactory)
}, trailingContent: @Composable RowScope.(MessageItemState) -> Unit = {
DefaultMessageItemTrailingContent(messageItem = it)
})
The default message container for all messages in the Conversation/Messages screen.
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fun MessageList(viewModel: MessageListViewModel, reactionSorting: ReactionSorting = ReactionSortingByFirstReactionAt, modifier: Modifier = Modifier, contentPadding: PaddingValues = PaddingValues(vertical = 16.dp), messageContentFactory: MessageContentFactory = ChatTheme.messageContentFactory, messagesLazyListState: MessagesLazyListState = rememberMessageListState(parentMessageId = viewModel.currentMessagesState.parentMessageId), threadMessagesStart: ThreadMessagesStart = ThreadMessagesStart.BOTTOM, onThreadClick: (Message) -> Unit = { viewModel.openMessageThread(it) }, onLongItemClick: (Message) -> Unit = { viewModel.selectMessage(it) }, onReactionsClick: (Message) -> Unit = { viewModel.selectReactions(it) }, onMessagesPageStartReached: () -> Unit = { viewModel.loadOlderMessages() }, onLastVisibleMessageChanged: (Message) -> Unit = { viewModel.updateLastSeenMessage(it) }, onScrollToBottom: () -> Unit = { viewModel.clearNewMessageState() }, onGiphyActionClick: (GiphyAction) -> Unit = { viewModel.performGiphyAction(it) }, onPollUpdated: (Message, Poll) -> Unit = { message, poll ->
val selectedPoll = viewModel.pollState.selectedPoll
if (viewModel.isShowingPollOptionDetails &&
selectedPoll != null && selectedPoll.poll.id == poll.id
) {
viewModel.updatePollState(poll, message, selectedPoll.pollSelectionType)
}
}, onCastVote: (Message, Poll, Option) -> Unit = { message, poll, option ->
viewModel.castVote(
message = message,
poll = poll,
option = option,
)
}, onRemoveVote: (Message, Poll, Vote) -> Unit = { message, poll, vote ->
viewModel.removeVote(
message = message,
poll = poll,
vote = vote,
)
}, selectPoll: (Message, Poll, PollSelectionType) -> Unit = { message, poll, selectionType ->
viewModel.displayPollMoreOptions(selectedPoll = SelectedPoll(poll, message, selectionType))
}, onAddAnswer: (message: Message, poll: Poll, answer: String) -> Unit = { message, poll, answer ->
viewModel.castAnswer(message, poll, answer)
}, onClosePoll: (String) -> Unit = { pollId ->
viewModel.closePoll(pollId = pollId)
}, onAddPollOption: (poll: Poll, option: String) -> Unit = { poll, option ->
viewModel.addPollOption(poll, option)
}, onQuotedMessageClick: (Message) -> Unit = { message ->
viewModel.scrollToMessage(
messageId = message.id,
parentMessageId = message.parentId,
)
}, onUserAvatarClick: (User) -> Unit? = null, onMessageLinkClick: (Message, String) -> Unit? = null, onUserMentionClick: (User) -> Unit = {}, onMediaGalleryPreviewResult: (MediaGalleryPreviewResult?) -> Unit = {
if (it?.resultType == MediaGalleryPreviewResultType.SHOW_IN_CHAT) {
viewModel.scrollToMessage(
messageId = it.messageId,
parentMessageId = it.parentMessageId,
)
}
}, onMessagesPageEndReached: (String) -> Unit = { viewModel.onBottomEndRegionReached(it) }, onScrollToBottomClicked: (() -> Unit) -> Unit = { viewModel.scrollToBottom(scrollToBottom = it) }, loadingContent: @Composable () -> Unit = { DefaultMessageListLoadingIndicator(modifier) }, emptyContent: @Composable () -> Unit = { DefaultMessageListEmptyContent(modifier) }, helperContent: @Composable BoxScope.() -> Unit = {
DefaultMessagesHelperContent(
messagesState = viewModel.currentMessagesState,
messagesLazyListState = messagesLazyListState,
scrollToBottom = onScrollToBottomClicked,
)
}, loadingMoreContent: @Composable () -> Unit = { DefaultMessagesLoadingMoreIndicator() }, itemContent: @Composable (MessageListItemState) -> Unit = { messageListItem ->
DefaultMessageContainer(
messageListItemState = messageListItem,
reactionSorting = reactionSorting,
messageContentFactory = messageContentFactory,
onMediaGalleryPreviewResult = onMediaGalleryPreviewResult,
onCastVote = onCastVote,
onRemoveVote = onRemoveVote,
selectPoll = selectPoll,
onPollUpdated = onPollUpdated,
onClosePoll = onClosePoll,
onAddPollOption = onAddPollOption,
onThreadClick = onThreadClick,
onLongItemClick = onLongItemClick,
onReactionsClick = onReactionsClick,
onGiphyActionClick = onGiphyActionClick,
onQuotedMessageClick = onQuotedMessageClick,
onUserAvatarClick = onUserAvatarClick,
onLinkClick = onMessageLinkClick,
onUserMentionClick = onUserMentionClick,
onAddAnswer = onAddAnswer,
)
})
Default MessageList component, that relies on MessageListViewModel to connect all the data handling operations. It also delegates events to the ViewModel to handle, like long item clicks and pagination.
fun MessageList(currentState: MessageListState, threadMessagesStart: ThreadMessagesStart = ThreadMessagesStart.BOTTOM, reactionSorting: ReactionSorting, modifier: Modifier = Modifier, contentPadding: PaddingValues = PaddingValues(vertical = 16.dp), messageContentFactory: MessageContentFactory = ChatTheme.messageContentFactory, messagesLazyListState: MessagesLazyListState = rememberMessageListState(parentMessageId = currentState.parentMessageId), onMessagesPageStartReached: () -> Unit = {}, onLastVisibleMessageChanged: (Message) -> Unit = {}, onScrolledToBottom: () -> Unit = {}, onPollUpdated: (Message, Poll) -> Unit = { _, _ -> }, onCastVote: (Message, Poll, Option) -> Unit = { _, _, _ -> }, onRemoveVote: (Message, Poll, Vote) -> Unit = { _, _, _ -> }, selectPoll: (Message, Poll, PollSelectionType) -> Unit = { _, _, _ -> }, onAddAnswer: (message: Message, poll: Poll, answer: String) -> Unit = { _, _, _ -> }, onClosePoll: (String) -> Unit = { _ -> }, onAddPollOption: (poll: Poll, option: String) -> Unit = { _, _ -> }, onThreadClick: (Message) -> Unit = {}, onLongItemClick: (Message) -> Unit = {}, onReactionsClick: (Message) -> Unit = {}, onMediaGalleryPreviewResult: (MediaGalleryPreviewResult?) -> Unit = {}, onGiphyActionClick: (GiphyAction) -> Unit = {}, onQuotedMessageClick: (Message) -> Unit = {}, onMessagesPageEndReached: (String) -> Unit = {}, onScrollToBottom: (() -> Unit) -> Unit = {}, onUserAvatarClick: (User) -> Unit? = null, onMessageLinkClick: (Message, String) -> Unit? = null, onUserMentionClick: (User) -> Unit = { _ -> }, loadingContent: @Composable () -> Unit = { DefaultMessageListLoadingIndicator(modifier) }, emptyContent: @Composable () -> Unit = { DefaultMessageListEmptyContent(modifier) }, helperContent: @Composable BoxScope.() -> Unit = {
DefaultMessagesHelperContent(
messagesState = currentState,
messagesLazyListState = messagesLazyListState,
scrollToBottom = onScrollToBottom,
)
}, loadingMoreContent: @Composable () -> Unit = { DefaultMessagesLoadingMoreIndicator() }, itemModifier: (index: Int, item: MessageListItemState) -> Modifier = { _, _ ->
Modifier
}, itemContent: @Composable (MessageListItemState) -> Unit = {
DefaultMessageContainer(
messageListItemState = it,
reactionSorting = reactionSorting,
messageContentFactory = messageContentFactory,
onPollUpdated = onPollUpdated,
onCastVote = onCastVote,
onRemoveVote = onRemoveVote,
selectPoll = selectPoll,
onClosePoll = onClosePoll,
onAddPollOption = onAddPollOption,
onLongItemClick = onLongItemClick,
onThreadClick = onThreadClick,
onReactionsClick = onReactionsClick,
onGiphyActionClick = onGiphyActionClick,
onMediaGalleryPreviewResult = onMediaGalleryPreviewResult,
onQuotedMessageClick = onQuotedMessageClick,
onUserAvatarClick = onUserAvatarClick,
onLinkClick = onMessageLinkClick,
onUserMentionClick = onUserMentionClick,
onAddAnswer = onAddAnswer,
)
})
Clean representation of the MessageList that is decoupled from ViewModels. This components allows users to connect the UI to their own data providers, as it relies on pure state.
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fun Messages(messagesState: MessageListState, messagesLazyListState: MessagesLazyListState, threadMessagesStart: ThreadMessagesStart = ThreadMessagesStart.BOTTOM, onMessagesStartReached: () -> Unit, onLastVisibleMessageChanged: (Message) -> Unit, onScrolledToBottom: () -> Unit, onMessagesEndReached: (String) -> Unit, onScrollToBottom: (() -> Unit) -> Unit, modifier: Modifier = Modifier, contentPadding: PaddingValues = PaddingValues(vertical = 16.dp), helperContent: @Composable BoxScope.() -> Unit = {
DefaultMessagesHelperContent(
messagesState = messagesState,
messagesLazyListState = messagesLazyListState,
scrollToBottom = onScrollToBottom,
)
}, loadingMoreContent: @Composable () -> Unit = { DefaultMessagesLoadingMoreIndicator() }, itemModifier: (index: Int, item: MessageListItemState) -> Modifier = { _, _ -> Modifier }, itemContent: @Composable (MessageListItemState) -> Unit)
Builds a list of message items, based on the itemContent parameter and the state provided within messagesState. Also handles the pagination events, by propagating the event to the call site.
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fun RegularMessageContent(messageItem: MessageItemState, modifier: Modifier = Modifier, messageContentFactory: MessageContentFactory = ChatTheme.messageContentFactory, onLongItemClick: (Message) -> Unit = {}, onGiphyActionClick: (GiphyAction) -> Unit = {}, onQuotedMessageClick: (Message) -> Unit = {}, onLinkClick: (Message, String) -> Unit? = null, onUserMentionClick: (User) -> Unit = {}, onMediaGalleryPreviewResult: (MediaGalleryPreviewResult?) -> Unit = {})
Message content for messages which consist of more than just emojis.