1045 lines
28 KiB
C++
1045 lines
28 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "data/data_replies_list.h"
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#include "history/history.h"
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#include "history/history_item.h"
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#include "history/history_item_helpers.h"
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#include "main/main_session.h"
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#include "data/data_histories.h"
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#include "data/data_session.h"
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#include "data/data_changes.h"
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#include "data/data_channel.h"
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#include "data/data_messages.h"
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#include "data/data_forum.h"
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#include "data/data_forum_topic.h"
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#include "window/notifications_manager.h"
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#include "core/application.h"
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#include "lang/lang_keys.h"
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#include "apiwrap.h"
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namespace Data {
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namespace {
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constexpr auto kMessagesPerPage = 50;
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constexpr auto kReadRequestTimeout = 3 * crl::time(1000);
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constexpr auto kMaxMessagesToDeleteMyTopic = 10;
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[[nodiscard]] HistoryItem *GenerateDivider(
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not_null<History*> history,
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TimeId date,
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const QString &text) {
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return history->makeMessage({
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.id = history->nextNonHistoryEntryId(),
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.flags = MessageFlag::FakeHistoryItem,
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.date = date,
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}, PreparedServiceText{ { .text = text } });
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}
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[[nodiscard]] bool IsCreating(not_null<History*> history, MsgId rootId) {
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if (const auto forum = history->asForum()) {
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return forum->creating(rootId);
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}
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return false;
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}
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} // namespace
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struct RepliesList::Viewer {
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MessagesSlice slice;
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MsgId around = 0;
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int limitBefore = 0;
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int limitAfter = 0;
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int injectedForRoot = 0;
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base::has_weak_ptr guard;
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bool scheduled = false;
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};
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RepliesList::RepliesList(
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not_null<History*> history,
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MsgId rootId,
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ForumTopic *owningTopic)
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: _history(history)
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, _owningTopic(owningTopic)
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, _rootId(rootId)
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, _creating(IsCreating(history, rootId))
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, _readRequestTimer([=] { sendReadTillRequest(); }) {
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if (_owningTopic) {
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_owningTopic->destroyed(
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) | rpl::start_with_next([=] {
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_owningTopic = nullptr;
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subscribeToUpdates();
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}, _lifetime);
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} else {
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subscribeToUpdates();
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}
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}
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RepliesList::~RepliesList() {
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histories().cancelRequest(base::take(_beforeId));
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histories().cancelRequest(base::take(_afterId));
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if (_readRequestTimer.isActive()) {
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sendReadTillRequest();
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}
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if (_divider) {
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_divider->destroy();
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}
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}
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void RepliesList::subscribeToUpdates() {
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_history->owner().repliesReadTillUpdates(
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) | rpl::filter([=](const RepliesReadTillUpdate &update) {
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return (update.id.msg == _rootId)
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&& (update.id.peer == _history->peer->id);
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}) | rpl::start_with_next([=](const RepliesReadTillUpdate &update) {
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apply(update);
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}, _lifetime);
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_history->session().changes().messageUpdates(
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MessageUpdate::Flag::NewAdded
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| MessageUpdate::Flag::NewMaybeAdded
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| MessageUpdate::Flag::ReplyToTopAdded
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| MessageUpdate::Flag::Destroyed
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) | rpl::start_with_next([=](const MessageUpdate &update) {
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apply(update);
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}, _lifetime);
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_history->session().changes().topicUpdates(
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TopicUpdate::Flag::Creator
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) | rpl::start_with_next([=](const TopicUpdate &update) {
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apply(update);
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}, _lifetime);
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_history->owner().channelDifferenceTooLong(
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) | rpl::start_with_next([=](not_null<ChannelData*> channel) {
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if (channel == _history->peer) {
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applyDifferenceTooLong();
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}
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}, _lifetime);
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}
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void RepliesList::apply(const RepliesReadTillUpdate &update) {
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if (update.out) {
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setOutboxReadTill(update.readTillId);
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} else if (update.readTillId >= _inboxReadTillId) {
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setInboxReadTill(
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update.readTillId,
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computeUnreadCountLocally(update.readTillId));
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}
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}
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void RepliesList::apply(const MessageUpdate &update) {
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if (applyUpdate(update)) {
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_instantChanges.fire({});
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}
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}
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void RepliesList::apply(const TopicUpdate &update) {
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if (update.topic->history() == _history
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&& update.topic->rootId() == _rootId) {
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if (update.flags & TopicUpdate::Flag::Creator) {
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applyTopicCreator(update.topic->creatorId());
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}
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}
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}
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void RepliesList::applyTopicCreator(PeerId creatorId) {
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const auto owner = &_history->owner();
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const auto peerId = _history->peer->id;
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for (const auto &id : _list) {
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if (const auto item = owner->message(peerId, id)) {
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if (item->from()->id == creatorId) {
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owner->requestItemResize(item);
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}
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}
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}
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}
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rpl::producer<MessagesSlice> RepliesList::source(
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MessagePosition aroundId,
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int limitBefore,
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int limitAfter) {
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const auto around = aroundId.fullId.msg;
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return [=](auto consumer) {
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auto lifetime = rpl::lifetime();
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const auto viewer = lifetime.make_state<Viewer>();
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const auto push = [=] {
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if (viewer->scheduled) {
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viewer->scheduled = false;
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if (buildFromData(viewer)) {
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appendClientSideMessages(viewer->slice);
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consumer.put_next_copy(viewer->slice);
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}
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}
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};
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const auto pushInstant = [=] {
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viewer->scheduled = true;
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push();
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};
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const auto pushDelayed = [=] {
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if (!viewer->scheduled) {
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viewer->scheduled = true;
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crl::on_main(&viewer->guard, push);
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}
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};
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viewer->around = around;
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viewer->limitBefore = limitBefore;
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viewer->limitAfter = limitAfter;
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_history->session().changes().historyUpdates(
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_history,
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HistoryUpdate::Flag::ClientSideMessages
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) | rpl::start_with_next(pushDelayed, lifetime);
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_history->session().changes().messageUpdates(
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MessageUpdate::Flag::Destroyed
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) | rpl::filter([=](const MessageUpdate &update) {
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return applyItemDestroyed(viewer, update.item);
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}) | rpl::start_with_next(pushDelayed, lifetime);
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_listChanges.events(
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) | rpl::start_with_next(pushDelayed, lifetime);
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_instantChanges.events(
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) | rpl::start_with_next(pushInstant, lifetime);
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pushInstant();
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return lifetime;
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};
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}
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void RepliesList::appendClientSideMessages(MessagesSlice &slice) {
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const auto &messages = _history->clientSideMessages();
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if (messages.empty()) {
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return;
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} else if (slice.ids.empty()) {
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if (slice.skippedBefore != 0 || slice.skippedAfter != 0) {
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return;
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}
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slice.ids.reserve(messages.size());
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for (const auto &item : messages) {
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if (!item->inThread(_rootId)) {
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continue;
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}
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slice.ids.push_back(item->fullId());
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}
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ranges::sort(slice.ids);
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return;
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}
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auto &owner = _history->owner();
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auto dates = std::vector<TimeId>();
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dates.reserve(slice.ids.size());
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for (const auto &id : slice.ids) {
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const auto message = owner.message(id);
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Assert(message != nullptr);
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dates.push_back(message->date());
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}
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for (const auto &item : messages) {
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if (!item->inThread(_rootId)) {
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continue;
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}
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const auto date = item->date();
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if (date < dates.front()) {
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if (slice.skippedBefore != 0) {
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if (slice.skippedBefore) {
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++*slice.skippedBefore;
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}
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continue;
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}
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dates.insert(dates.begin(), date);
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slice.ids.insert(slice.ids.begin(), item->fullId());
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} else {
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auto to = dates.size();
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for (; to != 0; --to) {
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const auto checkId = slice.ids[to - 1].msg;
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if (dates[to - 1] > date) {
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continue;
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} else if (dates[to - 1] < date
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|| IsServerMsgId(checkId)
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|| checkId < item->id) {
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break;
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}
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}
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dates.insert(dates.begin() + to, date);
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slice.ids.insert(slice.ids.begin() + to, item->fullId());
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}
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}
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}
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rpl::producer<int> RepliesList::fullCount() const {
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return _fullCount.value() | rpl::filter_optional();
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}
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rpl::producer<std::optional<int>> RepliesList::maybeFullCount() const {
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return _fullCount.value();
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}
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bool RepliesList::unreadCountKnown() const {
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return _unreadCount.current().has_value();
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}
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int RepliesList::unreadCountCurrent() const {
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return _unreadCount.current().value_or(0);
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}
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rpl::producer<std::optional<int>> RepliesList::unreadCountValue() const {
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return _unreadCount.value();
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}
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void RepliesList::injectRootMessageAndReverse(not_null<Viewer*> viewer) {
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injectRootMessage(viewer);
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ranges::reverse(viewer->slice.ids);
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}
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void RepliesList::injectRootMessage(not_null<Viewer*> viewer) {
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const auto slice = &viewer->slice;
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viewer->injectedForRoot = 0;
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if (slice->skippedBefore != 0) {
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return;
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}
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const auto root = lookupRoot();
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if (!root
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|| (_rootId == Data::ForumTopic::kGeneralId)
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|| (root->topicRootId() != Data::ForumTopic::kGeneralId)) {
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return;
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}
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injectRootDivider(root, slice);
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if (const auto group = _history->owner().groups().find(root)) {
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for (const auto &item : ranges::views::reverse(group->items)) {
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slice->ids.push_back(item->fullId());
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}
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viewer->injectedForRoot = group->items.size();
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if (slice->fullCount) {
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*slice->fullCount += group->items.size();
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}
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} else {
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slice->ids.push_back(root->fullId());
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viewer->injectedForRoot = 1;
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}
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if (slice->fullCount) {
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*slice->fullCount += viewer->injectedForRoot;
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}
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}
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void RepliesList::injectRootDivider(
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not_null<HistoryItem*> root,
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not_null<MessagesSlice*> slice) {
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const auto withComments = !slice->ids.empty();
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const auto text = [&] {
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return withComments
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? tr::lng_replies_discussion_started(tr::now)
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: tr::lng_replies_no_comments(tr::now);
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};
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if (!_divider) {
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_dividerWithComments = withComments;
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_divider = GenerateDivider(
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_history,
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root->date(),
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text());
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} else if (_dividerWithComments != withComments) {
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_dividerWithComments = withComments;
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_divider->updateServiceText(PreparedServiceText{ { text() } });
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}
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slice->ids.push_back(_divider->fullId());
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}
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bool RepliesList::buildFromData(not_null<Viewer*> viewer) {
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if (_creating
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|| (_list.empty() && _skippedBefore == 0 && _skippedAfter == 0)) {
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viewer->slice.ids.clear();
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viewer->slice.nearestToAround = FullMsgId();
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viewer->slice.fullCount
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= viewer->slice.skippedBefore
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= viewer->slice.skippedAfter
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= 0;
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viewer->injectedForRoot = 0;
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injectRootMessageAndReverse(viewer);
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return true;
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}
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const auto around = [&] {
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if (viewer->around != ShowAtUnreadMsgId) {
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return viewer->around;
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} else if (const auto item = lookupRoot()) {
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return computeInboxReadTillFull();
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} else if (_owningTopic) {
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// Somehow we don't want always to jump to computed inboxReadTill
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// (this was in the code before, but I don't remember why).
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// Maybe in case we "View Thread" from a group we don't really
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// want to jump to unread inside thread, cause it isn't defined.
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//
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// But in case of topics we definitely want to support jumping
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// to the first unread, even if it is General topic without the
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// actual root message or it is a broken topic without root.
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return computeInboxReadTillFull();
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}
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return viewer->around;
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}();
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if (_list.empty()
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|| (!around && _skippedAfter != 0)
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|| (around > _list.front() && _skippedAfter != 0)
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|| (around > 0 && around < _list.back() && _skippedBefore != 0)) {
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loadAround(around);
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return false;
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}
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const auto i = around
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? ranges::lower_bound(_list, around, std::greater<>())
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: end(_list);
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const auto availableBefore = int(end(_list) - i);
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const auto availableAfter = int(i - begin(_list));
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const auto useBefore = std::min(availableBefore, viewer->limitBefore + 1);
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const auto useAfter = std::min(availableAfter, viewer->limitAfter);
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const auto slice = &viewer->slice;
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if (_skippedBefore.has_value()) {
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slice->skippedBefore
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= (*_skippedBefore + (availableBefore - useBefore));
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}
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if (_skippedAfter.has_value()) {
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slice->skippedAfter
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= (*_skippedAfter + (availableAfter - useAfter));
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}
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const auto peerId = _history->peer->id;
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slice->ids.clear();
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auto nearestToAround = std::optional<MsgId>();
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slice->ids.reserve(useAfter + useBefore);
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for (auto j = i - useAfter, e = i + useBefore; j != e; ++j) {
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const auto id = *j;
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if (id == _rootId) {
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continue;
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} else if (!nearestToAround && id < around) {
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nearestToAround = (j == i - useAfter)
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? id
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: *(j - 1);
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}
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slice->ids.emplace_back(peerId, id);
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}
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slice->nearestToAround = FullMsgId(
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peerId,
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nearestToAround.value_or(
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slice->ids.empty() ? 0 : slice->ids.back().msg));
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slice->fullCount = _fullCount.current();
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injectRootMessageAndReverse(viewer);
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if (_skippedBefore != 0 && useBefore < viewer->limitBefore + 1) {
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loadBefore();
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}
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if (_skippedAfter != 0 && useAfter < viewer->limitAfter) {
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loadAfter();
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}
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return true;
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}
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bool RepliesList::applyItemDestroyed(
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not_null<Viewer*> viewer,
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not_null<HistoryItem*> item) {
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if (item->history() != _history || !item->isRegular()) {
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return false;
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}
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const auto fullId = item->fullId();
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for (auto i = 0; i != viewer->injectedForRoot; ++i) {
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if (viewer->slice.ids[i] == fullId) {
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return true;
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}
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}
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return false;
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}
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bool RepliesList::applyUpdate(const MessageUpdate &update) {
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using Flag = MessageUpdate::Flag;
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if (update.item->history() != _history
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|| !update.item->isRegular()
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|| !update.item->inThread(_rootId)) {
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return false;
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}
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const auto id = update.item->id;
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const auto added = (update.flags & Flag::ReplyToTopAdded);
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const auto i = ranges::lower_bound(_list, id, std::greater<>());
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if (update.flags & Flag::Destroyed) {
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if (!added) {
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changeUnreadCountByPost(id, -1);
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}
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if (i == end(_list) || *i != id) {
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return false;
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}
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_list.erase(i);
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if (_skippedBefore && _skippedAfter) {
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_fullCount = *_skippedBefore + _list.size() + *_skippedAfter;
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} else if (const auto known = _fullCount.current()) {
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if (*known > 0) {
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_fullCount = (*known - 1);
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}
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}
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return true;
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}
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if (added) {
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changeUnreadCountByPost(id, 1);
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}
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if (_skippedAfter != 0
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|| (i != end(_list) && *i == id)) {
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return false;
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}
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_list.insert(i, id);
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if (_skippedBefore && _skippedAfter) {
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_fullCount = *_skippedBefore + _list.size() + *_skippedAfter;
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} else if (const auto known = _fullCount.current()) {
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_fullCount = *known + 1;
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}
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return true;
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}
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void RepliesList::applyDifferenceTooLong() {
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if (!_creating && _skippedAfter.has_value()) {
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_skippedAfter = std::nullopt;
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_listChanges.fire({});
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}
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}
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void RepliesList::changeUnreadCountByPost(MsgId id, int delta) {
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if (!_inboxReadTillId) {
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setUnreadCount(std::nullopt);
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return;
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}
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const auto count = _unreadCount.current();
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if (count.has_value() && (id > _inboxReadTillId)) {
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setUnreadCount(std::max(*count + delta, 0));
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}
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}
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Histories &RepliesList::histories() {
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return _history->owner().histories();
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}
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|
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HistoryItem *RepliesList::lookupRoot() {
|
|
return _history->owner().message(_history->peer->id, _rootId);
|
|
}
|
|
|
|
void RepliesList::loadAround(MsgId id) {
|
|
Expects(!_creating);
|
|
|
|
if (_loadingAround && *_loadingAround == id) {
|
|
return;
|
|
}
|
|
histories().cancelRequest(base::take(_beforeId));
|
|
histories().cancelRequest(base::take(_afterId));
|
|
|
|
const auto send = [=](Fn<void()> finish) {
|
|
return _history->session().api().request(MTPmessages_GetReplies(
|
|
_history->peer->input,
|
|
MTP_int(_rootId),
|
|
MTP_int(id), // offset_id
|
|
MTP_int(0), // offset_date
|
|
MTP_int(id ? (-kMessagesPerPage / 2) : 0), // add_offset
|
|
MTP_int(kMessagesPerPage), // limit
|
|
MTP_int(0), // max_id
|
|
MTP_int(0), // min_id
|
|
MTP_long(0) // hash
|
|
)).done([=](const MTPmessages_Messages &result) {
|
|
_beforeId = 0;
|
|
_loadingAround = std::nullopt;
|
|
finish();
|
|
|
|
if (!id) {
|
|
_skippedAfter = 0;
|
|
} else {
|
|
_skippedAfter = std::nullopt;
|
|
}
|
|
_skippedBefore = std::nullopt;
|
|
_list.clear();
|
|
if (processMessagesIsEmpty(result)) {
|
|
_fullCount = _skippedBefore = _skippedAfter = 0;
|
|
} else if (id) {
|
|
Assert(!_list.empty());
|
|
if (_list.front() <= id) {
|
|
_skippedAfter = 0;
|
|
} else if (_list.back() >= id) {
|
|
_skippedBefore = 0;
|
|
}
|
|
}
|
|
checkReadTillEnd();
|
|
}).fail([=] {
|
|
_beforeId = 0;
|
|
_loadingAround = std::nullopt;
|
|
finish();
|
|
}).send();
|
|
};
|
|
_loadingAround = id;
|
|
_beforeId = histories().sendRequest(
|
|
_history,
|
|
Histories::RequestType::History,
|
|
send);
|
|
}
|
|
|
|
void RepliesList::loadBefore() {
|
|
Expects(!_list.empty());
|
|
|
|
if (_loadingAround) {
|
|
histories().cancelRequest(base::take(_beforeId));
|
|
} else if (_beforeId) {
|
|
return;
|
|
}
|
|
|
|
const auto last = _list.back();
|
|
const auto send = [=](Fn<void()> finish) {
|
|
return _history->session().api().request(MTPmessages_GetReplies(
|
|
_history->peer->input,
|
|
MTP_int(_rootId),
|
|
MTP_int(last), // offset_id
|
|
MTP_int(0), // offset_date
|
|
MTP_int(0), // add_offset
|
|
MTP_int(kMessagesPerPage), // limit
|
|
MTP_int(0), // min_id
|
|
MTP_int(0), // max_id
|
|
MTP_long(0) // hash
|
|
)).done([=](const MTPmessages_Messages &result) {
|
|
_beforeId = 0;
|
|
finish();
|
|
|
|
if (_list.empty()) {
|
|
return;
|
|
} else if (_list.back() != last) {
|
|
loadBefore();
|
|
} else if (processMessagesIsEmpty(result)) {
|
|
_skippedBefore = 0;
|
|
if (_skippedAfter == 0) {
|
|
_fullCount = _list.size();
|
|
}
|
|
}
|
|
}).fail([=] {
|
|
_beforeId = 0;
|
|
finish();
|
|
}).send();
|
|
};
|
|
_beforeId = histories().sendRequest(
|
|
_history,
|
|
Histories::RequestType::History,
|
|
send);
|
|
}
|
|
|
|
void RepliesList::loadAfter() {
|
|
Expects(!_list.empty());
|
|
|
|
if (_afterId) {
|
|
return;
|
|
}
|
|
|
|
const auto first = _list.front();
|
|
const auto send = [=](Fn<void()> finish) {
|
|
return _history->session().api().request(MTPmessages_GetReplies(
|
|
_history->peer->input,
|
|
MTP_int(_rootId),
|
|
MTP_int(first + 1), // offset_id
|
|
MTP_int(0), // offset_date
|
|
MTP_int(-kMessagesPerPage), // add_offset
|
|
MTP_int(kMessagesPerPage), // limit
|
|
MTP_int(0), // min_id
|
|
MTP_int(0), // max_id
|
|
MTP_long(0) // hash
|
|
)).done([=](const MTPmessages_Messages &result) {
|
|
_afterId = 0;
|
|
finish();
|
|
|
|
if (_list.empty()) {
|
|
return;
|
|
} else if (_list.front() != first) {
|
|
loadAfter();
|
|
} else if (processMessagesIsEmpty(result)) {
|
|
_skippedAfter = 0;
|
|
if (_skippedBefore == 0) {
|
|
_fullCount = _list.size();
|
|
}
|
|
checkReadTillEnd();
|
|
}
|
|
}).fail([=] {
|
|
_afterId = 0;
|
|
finish();
|
|
}).send();
|
|
};
|
|
_afterId = histories().sendRequest(
|
|
_history,
|
|
Histories::RequestType::History,
|
|
send);
|
|
}
|
|
|
|
bool RepliesList::processMessagesIsEmpty(const MTPmessages_Messages &result) {
|
|
const auto guard = gsl::finally([&] { _listChanges.fire({}); });
|
|
|
|
auto &owner = _history->owner();
|
|
const auto list = result.match([&](
|
|
const MTPDmessages_messagesNotModified &) {
|
|
LOG(("API Error: received messages.messagesNotModified! "
|
|
"(HistoryWidget::messagesReceived)"));
|
|
return QVector<MTPMessage>();
|
|
}, [&](const auto &data) {
|
|
owner.processUsers(data.vusers());
|
|
owner.processChats(data.vchats());
|
|
return data.vmessages().v;
|
|
});
|
|
|
|
const auto fullCount = result.match([&](
|
|
const MTPDmessages_messagesNotModified &) {
|
|
LOG(("API Error: received messages.messagesNotModified! "
|
|
"(HistoryWidget::messagesReceived)"));
|
|
return 0;
|
|
}, [&](const MTPDmessages_messages &data) {
|
|
return int(data.vmessages().v.size());
|
|
}, [&](const MTPDmessages_messagesSlice &data) {
|
|
return data.vcount().v;
|
|
}, [&](const MTPDmessages_channelMessages &data) {
|
|
if (const auto channel = _history->peer->asChannel()) {
|
|
channel->ptsReceived(data.vpts().v);
|
|
channel->processTopics(data.vtopics());
|
|
} else {
|
|
LOG(("API Error: received messages.channelMessages when "
|
|
"no channel was passed! (HistoryWidget::messagesReceived)"));
|
|
}
|
|
return data.vcount().v;
|
|
});
|
|
|
|
if (list.isEmpty()) {
|
|
return true;
|
|
}
|
|
|
|
const auto maxId = IdFromMessage(list.front());
|
|
const auto wasSize = int(_list.size());
|
|
const auto toFront = (wasSize > 0) && (maxId > _list.front());
|
|
const auto localFlags = MessageFlags();
|
|
const auto type = NewMessageType::Existing;
|
|
auto refreshed = std::vector<MsgId>();
|
|
if (toFront) {
|
|
refreshed.reserve(_list.size() + list.size());
|
|
}
|
|
auto skipped = 0;
|
|
for (const auto &message : list) {
|
|
if (const auto item = owner.addNewMessage(message, localFlags, type)) {
|
|
if (item->inThread(_rootId)) {
|
|
if (toFront && item->id > _list.front()) {
|
|
refreshed.push_back(item->id);
|
|
} else if (_list.empty() || item->id < _list.back()) {
|
|
_list.push_back(item->id);
|
|
}
|
|
} else {
|
|
++skipped;
|
|
}
|
|
} else {
|
|
++skipped;
|
|
}
|
|
}
|
|
if (toFront) {
|
|
refreshed.insert(refreshed.end(), _list.begin(), _list.end());
|
|
_list = std::move(refreshed);
|
|
}
|
|
|
|
const auto nowSize = int(_list.size());
|
|
auto &decrementFrom = toFront ? _skippedAfter : _skippedBefore;
|
|
if (decrementFrom.has_value()) {
|
|
*decrementFrom = std::max(
|
|
*decrementFrom - (nowSize - wasSize),
|
|
0);
|
|
}
|
|
|
|
const auto checkedCount = std::max(fullCount - skipped, nowSize);
|
|
if (_skippedBefore && _skippedAfter) {
|
|
auto &correct = toFront ? _skippedBefore : _skippedAfter;
|
|
*correct = std::max(
|
|
checkedCount - *decrementFrom - nowSize,
|
|
0);
|
|
*decrementFrom = checkedCount - *correct - nowSize;
|
|
Assert(*decrementFrom >= 0);
|
|
} else if (_skippedBefore) {
|
|
*_skippedBefore = std::min(*_skippedBefore, checkedCount - nowSize);
|
|
_skippedAfter = checkedCount - *_skippedBefore - nowSize;
|
|
} else if (_skippedAfter) {
|
|
*_skippedAfter = std::min(*_skippedAfter, checkedCount - nowSize);
|
|
_skippedBefore = checkedCount - *_skippedAfter - nowSize;
|
|
}
|
|
_fullCount = checkedCount;
|
|
|
|
checkReadTillEnd();
|
|
|
|
if (const auto item = lookupRoot()) {
|
|
if (const auto original = item->lookupDiscussionPostOriginal()) {
|
|
if (_skippedAfter == 0 && !_list.empty()) {
|
|
original->setCommentsMaxId(_list.front());
|
|
} else {
|
|
original->setCommentsPossibleMaxId(maxId);
|
|
}
|
|
}
|
|
}
|
|
|
|
Ensures(list.size() >= skipped);
|
|
return (list.size() == skipped);
|
|
}
|
|
|
|
void RepliesList::setInboxReadTill(
|
|
MsgId readTillId,
|
|
std::optional<int> unreadCount) {
|
|
const auto newReadTillId = std::max(readTillId.bare, int64(1));
|
|
const auto ignore = (newReadTillId < _inboxReadTillId);
|
|
if (ignore) {
|
|
return;
|
|
}
|
|
const auto changed = (newReadTillId > _inboxReadTillId);
|
|
if (changed) {
|
|
_inboxReadTillId = newReadTillId;
|
|
}
|
|
if (_skippedAfter == 0
|
|
&& !_list.empty()
|
|
&& _inboxReadTillId >= _list.front()) {
|
|
unreadCount = 0;
|
|
}
|
|
const auto wasUnreadCount = _unreadCount;
|
|
if (_unreadCount.current() != unreadCount
|
|
&& (changed || unreadCount.has_value())) {
|
|
setUnreadCount(unreadCount);
|
|
}
|
|
}
|
|
|
|
MsgId RepliesList::inboxReadTillId() const {
|
|
return _inboxReadTillId;
|
|
}
|
|
|
|
MsgId RepliesList::computeInboxReadTillFull() const {
|
|
const auto local = _inboxReadTillId;
|
|
if (const auto megagroup = _history->peer->asMegagroup()) {
|
|
if (!megagroup->isForum() && megagroup->amIn()) {
|
|
return std::max(local, _history->inboxReadTillId());
|
|
}
|
|
}
|
|
return local;
|
|
}
|
|
|
|
void RepliesList::setOutboxReadTill(MsgId readTillId) {
|
|
const auto newReadTillId = std::max(readTillId.bare, int64(1));
|
|
if (newReadTillId > _outboxReadTillId) {
|
|
_outboxReadTillId = newReadTillId;
|
|
_history->session().changes().historyUpdated(
|
|
_history,
|
|
HistoryUpdate::Flag::OutboxRead);
|
|
}
|
|
}
|
|
|
|
MsgId RepliesList::computeOutboxReadTillFull() const {
|
|
const auto local = _outboxReadTillId;
|
|
if (const auto megagroup = _history->peer->asMegagroup()) {
|
|
if (!megagroup->isForum() && megagroup->amIn()) {
|
|
return std::max(local, _history->outboxReadTillId());
|
|
}
|
|
}
|
|
return local;
|
|
}
|
|
|
|
void RepliesList::setUnreadCount(std::optional<int> count) {
|
|
_unreadCount = count;
|
|
if (!count && !_readRequestTimer.isActive() && !_readRequestId) {
|
|
reloadUnreadCountIfNeeded();
|
|
}
|
|
}
|
|
|
|
int RepliesList::displayedUnreadCount() const {
|
|
return (_inboxReadTillId > 1) ? unreadCountCurrent() : 0;
|
|
}
|
|
|
|
bool RepliesList::isServerSideUnread(
|
|
not_null<const HistoryItem*> item) const {
|
|
const auto till = item->out()
|
|
? computeOutboxReadTillFull()
|
|
: computeInboxReadTillFull();
|
|
return (item->id > till);
|
|
}
|
|
|
|
void RepliesList::checkReadTillEnd() {
|
|
if (_unreadCount.current() != 0
|
|
&& _skippedAfter == 0
|
|
&& !_list.empty()
|
|
&& _inboxReadTillId >= _list.front()) {
|
|
setUnreadCount(0);
|
|
}
|
|
}
|
|
|
|
std::optional<int> RepliesList::computeUnreadCountLocally(
|
|
MsgId afterId) const {
|
|
Expects(afterId >= _inboxReadTillId);
|
|
|
|
const auto currentUnreadCountAfter = _unreadCount.current();
|
|
const auto startingMarkingAsRead = (currentUnreadCountAfter == 0)
|
|
&& (_inboxReadTillId == 1)
|
|
&& (afterId > 1);
|
|
const auto wasUnreadCountAfter = startingMarkingAsRead
|
|
? _fullCount.current().value_or(0)
|
|
: currentUnreadCountAfter;
|
|
const auto readTillId = std::max(afterId, _rootId);
|
|
const auto wasReadTillId = _inboxReadTillId;
|
|
const auto backLoaded = (_skippedBefore == 0);
|
|
const auto frontLoaded = (_skippedAfter == 0);
|
|
const auto fullLoaded = backLoaded && frontLoaded;
|
|
const auto allUnread = (readTillId == _rootId)
|
|
|| (fullLoaded && _list.empty());
|
|
if (allUnread && fullLoaded) {
|
|
// Should not happen too often unless the list is empty.
|
|
return int(_list.size());
|
|
} else if (frontLoaded && !_list.empty() && readTillId >= _list.front()) {
|
|
// Always "count by local data" if read till the end.
|
|
return 0;
|
|
} else if (wasReadTillId == readTillId) {
|
|
// Otherwise don't recount the same value over and over.
|
|
return wasUnreadCountAfter;
|
|
} else if (frontLoaded && !_list.empty() && readTillId >= _list.back()) {
|
|
// And count by local data if it is available and read-till changed.
|
|
return int(ranges::lower_bound(_list, readTillId, std::greater<>())
|
|
- begin(_list));
|
|
} else if (_list.empty()) {
|
|
return std::nullopt;
|
|
} else if (wasUnreadCountAfter.has_value()
|
|
&& (frontLoaded || readTillId <= _list.front())
|
|
&& (backLoaded || wasReadTillId >= _list.back())) {
|
|
// Count how many were read since previous value.
|
|
const auto from = ranges::lower_bound(
|
|
_list,
|
|
readTillId,
|
|
std::greater<>());
|
|
const auto till = ranges::lower_bound(
|
|
from,
|
|
end(_list),
|
|
wasReadTillId,
|
|
std::greater<>());
|
|
return std::max(*wasUnreadCountAfter - int(till - from), 0);
|
|
}
|
|
return std::nullopt;
|
|
}
|
|
|
|
void RepliesList::requestUnreadCount() {
|
|
if (_reloadUnreadCountRequestId) {
|
|
return;
|
|
}
|
|
const auto weak = base::make_weak(this);
|
|
const auto session = &_history->session();
|
|
const auto fullId = FullMsgId(_history->peer->id, _rootId);
|
|
const auto apply = [weak, session, fullId](
|
|
MsgId readTill,
|
|
int unreadCount) {
|
|
if (const auto strong = weak.get()) {
|
|
strong->setInboxReadTill(readTill, unreadCount);
|
|
}
|
|
if (const auto root = session->data().message(fullId)) {
|
|
if (const auto post = root->lookupDiscussionPostOriginal()) {
|
|
post->setCommentsInboxReadTill(readTill);
|
|
}
|
|
}
|
|
};
|
|
_reloadUnreadCountRequestId = session->api().request(
|
|
MTPmessages_GetDiscussionMessage(
|
|
_history->peer->input,
|
|
MTP_int(_rootId))
|
|
).done([=](const MTPmessages_DiscussionMessage &result) {
|
|
if (weak) {
|
|
_reloadUnreadCountRequestId = 0;
|
|
}
|
|
result.match([&](const MTPDmessages_discussionMessage &data) {
|
|
session->data().processUsers(data.vusers());
|
|
session->data().processChats(data.vchats());
|
|
apply(
|
|
data.vread_inbox_max_id().value_or_empty(),
|
|
data.vunread_count().v);
|
|
});
|
|
}).send();
|
|
}
|
|
|
|
void RepliesList::readTill(not_null<HistoryItem*> item) {
|
|
readTill(item->id, item);
|
|
}
|
|
|
|
void RepliesList::readTill(MsgId tillId) {
|
|
readTill(tillId, _history->owner().message(_history->peer->id, tillId));
|
|
}
|
|
|
|
void RepliesList::readTill(
|
|
MsgId tillId,
|
|
HistoryItem *tillIdItem) {
|
|
if (!IsServerMsgId(tillId)) {
|
|
return;
|
|
}
|
|
const auto was = computeInboxReadTillFull();
|
|
const auto now = tillId;
|
|
if (now < was) {
|
|
return;
|
|
}
|
|
const auto unreadCount = computeUnreadCountLocally(now);
|
|
const auto fast = (tillIdItem && tillIdItem->out()) || !unreadCount.has_value();
|
|
if (was < now || (fast && now == was)) {
|
|
setInboxReadTill(now, unreadCount);
|
|
const auto rootFullId = FullMsgId(_history->peer->id, _rootId);
|
|
if (const auto root = _history->owner().message(rootFullId)) {
|
|
if (const auto post = root->lookupDiscussionPostOriginal()) {
|
|
post->setCommentsInboxReadTill(now);
|
|
}
|
|
}
|
|
if (!_readRequestTimer.isActive()) {
|
|
_readRequestTimer.callOnce(fast ? 0 : kReadRequestTimeout);
|
|
} else if (fast && _readRequestTimer.remainingTime() > 0) {
|
|
_readRequestTimer.callOnce(0);
|
|
}
|
|
}
|
|
if (const auto topic = _history->peer->forumTopicFor(_rootId)) {
|
|
Core::App().notifications().clearIncomingFromTopic(topic);
|
|
}
|
|
}
|
|
|
|
void RepliesList::sendReadTillRequest() {
|
|
if (_readRequestTimer.isActive()) {
|
|
_readRequestTimer.cancel();
|
|
}
|
|
const auto api = &_history->session().api();
|
|
api->request(base::take(_readRequestId)).cancel();
|
|
|
|
_readRequestId = api->request(MTPmessages_ReadDiscussion(
|
|
_history->peer->input,
|
|
MTP_int(_rootId),
|
|
MTP_int(computeInboxReadTillFull())
|
|
)).done(crl::guard(this, [=] {
|
|
_readRequestId = 0;
|
|
reloadUnreadCountIfNeeded();
|
|
})).send();
|
|
}
|
|
|
|
void RepliesList::reloadUnreadCountIfNeeded() {
|
|
if (unreadCountKnown()) {
|
|
return;
|
|
} else if (inboxReadTillId() < computeInboxReadTillFull()) {
|
|
_readRequestTimer.callOnce(0);
|
|
} else {
|
|
requestUnreadCount();
|
|
}
|
|
}
|
|
|
|
bool RepliesList::canDeleteMyTopic() const {
|
|
if (_skippedBefore != 0 || _skippedAfter != 0) {
|
|
return false;
|
|
}
|
|
auto counter = 0;
|
|
const auto owner = &_history->owner();
|
|
const auto peerId = _history->peer->id;
|
|
for (const auto &id : _list) {
|
|
if (id == _rootId) {
|
|
continue;
|
|
} else if (const auto item = owner->message(peerId, id)) {
|
|
if (!item->out() || ++counter > kMaxMessagesToDeleteMyTopic) {
|
|
return false;
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} // namespace Data
|