447 lines
11 KiB
C++
447 lines
11 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_forum.h"
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#include "data/data_channel.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_forum_icons.h"
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#include "data/data_forum_topic.h"
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#include "data/notify/data_notify_settings.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_unread_things.h"
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#include "main/main_session.h"
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#include "base/random.h"
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#include "apiwrap.h"
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#include "lang/lang_keys.h"
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#include "core/application.h"
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#include "ui/layers/generic_box.h"
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#include "ui/widgets/input_fields.h"
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#include "storage/storage_facade.h"
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#include "storage/storage_shared_media.h"
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#include "window/window_session_controller.h"
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#include "window/notifications_manager.h"
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#include "styles/style_boxes.h"
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namespace Data {
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namespace {
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constexpr auto kTopicsFirstLoad = 20;
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constexpr auto kLoadedTopicsMinCount = 20;
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constexpr auto kTopicsPerPage = 500;
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constexpr auto kStalePerRequest = 100;
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// constexpr auto kGeneralColorId = 0xA9A9A9;
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} // namespace
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Forum::Forum(not_null<History*> history)
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: _history(history)
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, _topicsList(&session(), FilterId(0), rpl::single(1)) {
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Expects(_history->peer->isChannel());
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if (_history->inChatList()) {
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preloadTopics();
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}
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if (channel()->canCreateTopics()) {
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owner().forumIcons().requestDefaultIfUnknown();
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}
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}
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Forum::~Forum() {
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for (const auto &request : _topicRequests) {
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if (request.second.id != _staleRequestId) {
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owner().histories().cancelRequest(request.second.id);
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}
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}
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if (_staleRequestId) {
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session().api().request(_staleRequestId).cancel();
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}
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if (_requestId) {
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session().api().request(_requestId).cancel();
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}
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const auto peerId = _history->peer->id;
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for (const auto &[rootId, topic] : _topics) {
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session().storage().unload(Storage::SharedMediaUnloadThread(
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peerId,
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rootId));
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_history->setForwardDraft(rootId, {});
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}
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}
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Session &Forum::owner() const {
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return _history->owner();
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}
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Main::Session &Forum::session() const {
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return _history->session();
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}
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not_null<History*> Forum::history() const {
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return _history;
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}
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not_null<ChannelData*> Forum::channel() const {
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return _history->peer->asChannel();
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}
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not_null<Dialogs::MainList*> Forum::topicsList() {
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return &_topicsList;
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}
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void Forum::unpinTopic() {
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const auto list = _topicsList.pinned();
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while (!list->order().empty()) {
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list->setPinned(list->order().front(), false);
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}
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}
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rpl::producer<> Forum::destroyed() const {
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return channel()->flagsValue(
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) | rpl::filter([=](const ChannelData::Flags::Change &update) {
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using Flag = ChannelData::Flag;
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return (update.diff & Flag::Forum) && !(update.value & Flag::Forum);
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}) | rpl::take(1) | rpl::to_empty;
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}
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rpl::producer<not_null<ForumTopic*>> Forum::topicDestroyed() const {
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return _topicDestroyed.events();
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}
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void Forum::preloadTopics() {
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if (topicsList()->indexed()->size() < kLoadedTopicsMinCount) {
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requestTopics();
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}
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}
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void Forum::reloadTopics() {
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_topicsList.setLoaded(false);
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session().api().request(base::take(_requestId)).cancel();
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_offset = {};
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for (const auto &[rootId, topic] : _topics) {
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if (!topic->creating()) {
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_staleRootIds.emplace(topic->rootId());
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}
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}
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requestTopics();
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}
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void Forum::requestTopics() {
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if (_topicsList.loaded() || _requestId) {
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return;
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}
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const auto firstLoad = !_offset.date;
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const auto loadCount = firstLoad ? kTopicsFirstLoad : kTopicsPerPage;
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_requestId = session().api().request(MTPchannels_GetForumTopics(
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MTP_flags(0),
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channel()->inputChannel,
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MTPstring(), // q
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MTP_int(_offset.date),
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MTP_int(_offset.id),
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MTP_int(_offset.topicId),
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MTP_int(loadCount)
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)).done([=](const MTPmessages_ForumTopics &result) {
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applyReceivedTopics(result, _offset);
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const auto &list = result.data().vtopics().v;
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if (list.isEmpty() || list.size() == result.data().vcount().v) {
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_topicsList.setLoaded();
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}
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_requestId = 0;
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_chatsListChanges.fire({});
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if (_topicsList.loaded()) {
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_chatsListLoadedEvents.fire({});
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}
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requestSomeStale();
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}).fail([=](const MTP::Error &error) {
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_requestId = 0;
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_topicsList.setLoaded();
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if (error.type() == u"CHANNEL_FORUM_MISSING"_q) {
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const auto flags = channel()->flags() & ~ChannelDataFlag::Forum;
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channel()->setFlags(flags);
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}
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}).send();
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}
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void Forum::applyTopicDeleted(MsgId rootId) {
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_topicsDeleted.emplace(rootId);
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const auto i = _topics.find(rootId);
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if (i != end(_topics)) {
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const auto raw = i->second.get();
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Core::App().notifications().clearFromTopic(raw);
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owner().removeChatListEntry(raw);
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_topicDestroyed.fire(raw);
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_topics.erase(i);
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_history->destroyMessagesByTopic(rootId);
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session().storage().unload(Storage::SharedMediaUnloadThread(
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_history->peer->id,
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rootId));
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_history->setForwardDraft(rootId, {});
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}
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}
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void Forum::applyReceivedTopics(
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const MTPmessages_ForumTopics &topics,
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ForumOffsets &updateOffsets) {
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applyReceivedTopics(topics, [&](not_null<ForumTopic*> topic) {
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if (const auto last = topic->lastServerMessage()) {
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updateOffsets.date = last->date();
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updateOffsets.id = last->id;
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}
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updateOffsets.topicId = topic->rootId();
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});
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}
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void Forum::applyReceivedTopics(
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const MTPmessages_ForumTopics &topics,
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Fn<void(not_null<ForumTopic*>)> callback) {
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const auto &data = topics.data();
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owner().processUsers(data.vusers());
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owner().processChats(data.vchats());
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owner().processMessages(data.vmessages(), NewMessageType::Existing);
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channel()->ptsReceived(data.vpts().v);
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const auto &list = data.vtopics().v;
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for (const auto &topic : list) {
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const auto rootId = topic.match([&](const auto &data) {
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return data.vid().v;
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});
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_staleRootIds.remove(rootId);
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topic.match([&](const MTPDforumTopicDeleted &data) {
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applyTopicDeleted(rootId);
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}, [&](const MTPDforumTopic &data) {
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_topicsDeleted.remove(rootId);
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const auto i = _topics.find(rootId);
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const auto creating = (i == end(_topics));
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const auto raw = creating
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? _topics.emplace(
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rootId,
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std::make_unique<ForumTopic>(this, rootId)
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).first->second.get()
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: i->second.get();
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raw->applyTopic(data);
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if (callback) {
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callback(raw);
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}
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});
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}
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if (!_staleRootIds.empty()) {
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requestSomeStale();
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}
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}
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void Forum::requestSomeStale() {
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if (_staleRequestId
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|| (!_offset.id && _requestId)
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|| _staleRootIds.empty()) {
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return;
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}
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const auto type = Histories::RequestType::History;
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auto rootIds = QVector<MTPint>();
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rootIds.reserve(std::min(int(_staleRootIds.size()), kStalePerRequest));
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for (auto i = begin(_staleRootIds); i != end(_staleRootIds);) {
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const auto rootId = *i;
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i = _staleRootIds.erase(i);
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if (_topicRequests.contains(rootId)) {
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continue;
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}
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rootIds.push_back(MTP_int(rootId));
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if (rootIds.size() == kStalePerRequest) {
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break;
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}
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}
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if (rootIds.empty()) {
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return;
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}
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const auto call = [=] {
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for (const auto &id : rootIds) {
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finishTopicRequest(id.v);
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}
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};
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auto &histories = owner().histories();
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_staleRequestId = histories.sendRequest(_history, type, [=](
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Fn<void()> finish) {
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return session().api().request(
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MTPchannels_GetForumTopicsByID(
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channel()->inputChannel,
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MTP_vector<MTPint>(rootIds))
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).done([=](const MTPmessages_ForumTopics &result) {
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applyReceivedTopics(result);
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call();
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finish();
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}).fail([=] {
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call();
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finish();
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}).send();
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});
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for (const auto &id : rootIds) {
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_topicRequests[id.v].id = _staleRequestId;
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}
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}
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void Forum::finishTopicRequest(MsgId rootId) {
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if (const auto request = _topicRequests.take(rootId)) {
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for (const auto &callback : request->callbacks) {
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callback();
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}
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}
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}
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void Forum::requestTopic(MsgId rootId, Fn<void()> done) {
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_staleRootIds.remove(rootId);
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auto &request = _topicRequests[rootId];
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if (done) {
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request.callbacks.push_back(std::move(done));
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}
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if (request.id) {
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return;
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}
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const auto call = [=] {
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finishTopicRequest(rootId);
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};
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const auto type = Histories::RequestType::History;
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auto &histories = owner().histories();
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request.id = histories.sendRequest(_history, type, [=](
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Fn<void()> finish) {
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return session().api().request(
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MTPchannels_GetForumTopicsByID(
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channel()->inputChannel,
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MTP_vector<MTPint>(1, MTP_int(rootId.bare)))
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).done([=](const MTPmessages_ForumTopics &result) {
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applyReceivedTopics(result);
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call();
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finish();
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}).fail([=] {
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call();
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finish();
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}).send();
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});
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}
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ForumTopic *Forum::applyTopicAdded(
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MsgId rootId,
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const QString &title,
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int32 colorId,
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DocumentId iconId) {
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Expects(rootId != 0);
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const auto i = _topics.find(rootId);
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const auto raw = (i != end(_topics))
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? i->second.get()
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: _topics.emplace(
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rootId,
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std::make_unique<ForumTopic>(this, rootId)
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).first->second.get();
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raw->applyTitle(title);
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raw->applyColorId(colorId);
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raw->applyIconId(iconId);
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if (!creating(rootId)) {
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raw->addToChatList(FilterId(), topicsList());
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_chatsListChanges.fire({});
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}
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return raw;
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}
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MsgId Forum::reserveCreatingId(
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const QString &title,
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int32 colorId,
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DocumentId iconId) {
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const auto result = owner().nextLocalMessageId();
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_creatingRootIds.emplace(result);
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applyTopicAdded(result, title, colorId, iconId);
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return result;
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}
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void Forum::discardCreatingId(MsgId rootId) {
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Expects(creating(rootId));
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const auto i = _topics.find(rootId);
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if (i != end(_topics)) {
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Assert(!i->second->inChatList());
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_topics.erase(i);
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}
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_creatingRootIds.remove(rootId);
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}
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bool Forum::creating(MsgId rootId) const {
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return _creatingRootIds.contains(rootId);
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}
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void Forum::created(MsgId rootId, MsgId realId) {
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if (rootId == realId) {
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return;
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}
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_creatingRootIds.remove(rootId);
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const auto i = _topics.find(rootId);
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Assert(i != end(_topics));
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auto topic = std::move(i->second);
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_topics.erase(i);
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const auto id = FullMsgId(_history->peer->id, realId);
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if (!_topics.contains(realId)) {
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_topics.emplace(
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realId,
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std::move(topic)
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).first->second->setRealRootId(realId);
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}
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owner().notifyItemIdChange({ id, rootId });
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}
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void Forum::clearAllUnreadMentions() {
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for (const auto &[rootId, topic] : _topics) {
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topic->unreadMentions().clear();
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}
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}
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void Forum::clearAllUnreadReactions() {
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for (const auto &[rootId, topic] : _topics) {
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topic->unreadReactions().clear();
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}
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}
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void Forum::enumerateTopics(Fn<void(not_null<ForumTopic*>)> action) const {
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for (const auto &[rootId, topic] : _topics) {
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action(topic.get());
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}
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}
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ForumTopic *Forum::topicFor(MsgId rootId) {
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if (!rootId) {
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return nullptr;
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}
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const auto i = _topics.find(rootId);
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return (i != end(_topics)) ? i->second.get() : nullptr;
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}
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ForumTopic *Forum::enforceTopicFor(MsgId rootId) {
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Expects(rootId != 0);
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const auto i = _topics.find(rootId);
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if (i != end(_topics)) {
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return i->second.get();
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}
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const auto result = applyTopicAdded(rootId, {}, {}, {});
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requestTopic(rootId);
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return result;
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}
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bool Forum::topicDeleted(MsgId rootId) const {
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return _topicsDeleted.contains(rootId);
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}
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rpl::producer<> Forum::chatsListChanges() const {
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return _chatsListChanges.events();
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}
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rpl::producer<> Forum::chatsListLoadedEvents() const {
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return _chatsListLoadedEvents.events();
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}
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} // namespace Data
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