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

111 lines
2.9 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#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 "styles/style_info.h"
namespace Info {
namespace Members {
Memento::Memento(not_null<Controller*> controller)
: Memento(
controller->peerId(),
controller->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 std::move(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,
controller->peer()));
}
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);
myEnsureResized(this);
restoreState(memento);
}
std::unique_ptr<ContentMemento> Widget::doCreateMemento() {
auto result = std::make_unique<Memento>(controller());
saveState(result.get());
return std::move(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());
auto scrollTop = memento->scrollTop();
scrollTopRestore(memento->scrollTop());
}
} // namespace Members
} // namespace Info