tdesktop/Telegram/SourceFiles/info/members/info_members_widget.cpp

112 lines
2.7 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "info/members/info_members_widget.h"
#include "info/profile/info_profile_members.h"
#include "info/info_controller.h"
#include "ui/widgets/scroll_area.h"
#include "ui/ui_utility.h"
#include "data/data_peer.h"
#include "data/data_channel.h"
#include "lang/lang_keys.h"
#include "styles/style_info.h"
namespace Info {
namespace Members {
Memento::Memento(not_null<Controller*> controller)
: Memento(
controller->peer(),
controller->migratedPeerId()) {
}
Memento::Memento(not_null<PeerData*> peer, PeerId migratedPeerId)
: ContentMemento(peer, migratedPeerId) {
}
Section Memento::section() const {
return Section(Section::Type::Members);
}
object_ptr<ContentWidget> Memento::createWidget(
QWidget *parent,
not_null<Controller*> controller,
const QRect &geometry) {
auto result = object_ptr<Widget>(
parent,
controller);
result->setInternalState(geometry, this);
return result;
}
void Memento::setState(std::unique_ptr<SavedState> state) {
_state = std::move(state);
}
std::unique_ptr<SavedState> Memento::state() {
return std::move(_state);
}
Memento::~Memento() = default;
Widget::Widget(
QWidget *parent,
not_null<Controller*> controller)
: ContentWidget(parent, controller) {
_inner = setInnerWidget(object_ptr<Profile::Members>(
this,
controller));
}
bool Widget::showInternal(not_null<ContentMemento*> memento) {
if (!controller()->validateMementoPeer(memento)) {
return false;
}
if (auto membersMemento = dynamic_cast<Memento*>(memento.get())) {
restoreState(membersMemento);
return true;
}
return false;
}
void Widget::setInternalState(
const QRect &geometry,
not_null<Memento*> memento) {
setGeometry(geometry);
Ui::SendPendingMoveResizeEvents(this);
restoreState(memento);
}
rpl::producer<QString> Widget::title() {
if (const auto channel = controller()->key().peer()->asChannel()) {
return channel->isMegagroup()
? tr::lng_profile_participants_section()
: tr::lng_profile_subscribers_section();
}
return tr::lng_profile_participants_section();
}
std::shared_ptr<ContentMemento> Widget::doCreateMemento() {
auto result = std::make_shared<Memento>(controller());
saveState(result.get());
return result;
}
void Widget::saveState(not_null<Memento*> memento) {
memento->setScrollTop(scrollTopSave());
memento->setState(_inner->saveState());
}
void Widget::restoreState(not_null<Memento*> memento) {
_inner->restoreState(memento->state());
scrollTopRestore(memento->scrollTop());
}
} // namespace Members
} // namespace Info