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Load recommendations on demand.

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This commit is contained in:
John Preston 2024-04-19 17:39:21 +04:00
parent a88770a8ec
commit 705bd9693d
2 changed files with 49 additions and 30 deletions
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77
Telegram/SourceFiles/dialogs/ui/dialogs_suggestions.cpp
View file

@ -177,12 +177,16 @@ public:
not_null<PeerListRow*> row) override;
Main::Session &session() const override;
void load();
private:
void fill();
void setupDivider();
void appendRow(not_null<ChannelData*> channel);
const not_null<Window::SessionController*> _window;
rpl::variable<int> _count;
bool _requested = false;
rpl::event_stream<not_null<PeerData*>> _chosen;
rpl::lifetime _lifetime;
@ -730,28 +734,35 @@ RecommendationsController::RecommendationsController(
void RecommendationsController::prepare() {
setupDivider();
const auto participants = &session().api().chatParticipants();
const auto fill = [=] {
const auto &list = participants->recommendations().list;
if (list.empty()) {
return;
}
for (const auto &peer : list) {
if (const auto channel = peer->asBroadcast()) {
appendRow(channel);
}
}
delegate()->peerListRefreshRows();
_count = delegate()->peerListFullRowsCount();
};
fill();
if (!_count.current()) {
participants->loadRecommendations();
participants->recommendationsLoaded(
) | rpl::take(1) | rpl::start_with_next(fill, _lifetime);
}
void RecommendationsController::load() {
if (_requested || _count.current()) {
return;
}
_requested = true;
const auto participants = &session().api().chatParticipants();
participants->loadRecommendations();
participants->recommendationsLoaded(
) | rpl::take(1) | rpl::start_with_next([=] {
fill();
}, _lifetime);
}
void RecommendationsController::fill() {
const auto participants = &session().api().chatParticipants();
const auto &list = participants->recommendations().list;
if (list.empty()) {
return;
}
for (const auto &peer : list) {
if (const auto channel = peer->asBroadcast()) {
appendRow(channel);
}
}
delegate()->peerListRefreshRows();
_count = delegate()->peerListFullRowsCount();
}
void RecommendationsController::appendRow(not_null<ChannelData*> channel) {
@ -852,7 +863,7 @@ void Suggestions::setupTabs() {
_tabs->setSections({
tr::lng_recent_chats(tr::now),
tr::lng_recent_channels(tr::now),
});
});
_tabs->sectionActivated(
) | rpl::start_with_next([=](int section) {
switchTab(section ? Tab::Channels : Tab::Chats);
@ -904,7 +915,7 @@ void Suggestions::setupChats() {
});
}, _topPeers->lifetime());
_chatsScroll->setVisible(_tab == Tab::Chats);
_chatsScroll->setVisible(_tab.current() == Tab::Chats);
}
void Suggestions::setupChannels() {
@ -923,7 +934,7 @@ void Suggestions::setupChannels() {
rpl::mappers::_1 + rpl::mappers::_2 == 0),
anim::type::instant);
_channelsScroll->setVisible(_tab == Tab::Channels);
_channelsScroll->setVisible(_tab.current() == Tab::Channels);
}
void Suggestions::selectJump(Qt::Key direction, int pageSize) {
@ -1003,7 +1014,7 @@ void Suggestions::hide(anim::type animated, Fn<void()> finish) {
}
void Suggestions::switchTab(Tab tab) {
if (_tab == tab) {
if (_tab.current() == tab) {
return;
}
_tab = tab;
@ -1021,8 +1032,9 @@ void Suggestions::startSlideAnimation() {
_chatsScroll->hide();
_channelsScroll->hide();
}
const auto from = (_tab == Tab::Channels) ? 0. : 1.;
const auto to = (_tab == Tab::Channels) ? 1. : 0.;
const auto channels = (_tab.current() == Tab::Channels);
const auto from = channels ? 0. : 1.;
const auto to = channels ? 1. : 0.;
_slideAnimation.start([=] {
update();
if (!_slideAnimation.animating() && !_shownAnimation.animating()) {
@ -1067,8 +1079,9 @@ void Suggestions::finishShow() {
_cache = QPixmap();
_tabs->show();
_chatsScroll->setVisible(_tab == Tab::Chats);
_channelsScroll->setVisible(_tab == Tab::Channels);
const auto channels = (_tab.current() == Tab::Channels);
_chatsScroll->setVisible(!channels);
_channelsScroll->setVisible(channels);
}
float64 Suggestions::shownOpacity() const {
@ -1088,7 +1101,7 @@ void Suggestions::paintEvent(QPaintEvent *e) {
p.drawPixmap(0, (opacity - 1.) * slide, _cache);
} else if (!_slideLeft.isNull()) {
const auto slide = st::topPeers.height + st::searchedBarHeight;
const auto right = (_tab == Tab::Channels);
const auto right = (_tab.current() == Tab::Channels);
const auto progress = _slideAnimation.value(right ? 1. : 0.);
const auto shift = st::topPeers.height + st::searchedBarHeight;
p.setOpacity(1. - progress);
@ -1299,6 +1312,12 @@ object_ptr<Ui::SlideWrap<>> Suggestions::setupRecommendations() {
_recommendationsCount = controller->count();
_tab.value() | rpl::filter(
rpl::mappers::_1 == Tab::Channels
) | rpl::start_with_next([=] {
controller->load();
}, lifetime);
controller->chosen(
) | rpl::start_with_next([=](not_null<PeerData*> peer) {
_persist = true;

2
Telegram/SourceFiles/dialogs/ui/dialogs_suggestions.h
View file

@ -108,6 +108,7 @@ private:
const not_null<Window::SessionController*> _controller;
const std::unique_ptr<Ui::SettingsSlider> _tabs;
rpl::variable<Tab> _tab = Tab::Chats;
const std::unique_ptr<Ui::ElasticScroll> _chatsScroll;
const not_null<Ui::VerticalLayout*> _chatsContent;
@ -142,7 +143,6 @@ private:
Ui::Animations::Simple _shownAnimation;
Fn<void()> _showFinished;
Tab _tab = Tab::Chats;
bool _hidden = false;
bool _persist = false;
QPixmap _cache;