114 lines
		
	
	
	
		
			2.7 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			114 lines
		
	
	
	
		
			2.7 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 "info/settings/info_settings_widget.h"
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#include "info/info_memento.h"
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#include "info/info_controller.h"
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#include "settings/settings_common.h"
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#include "ui/ui_utility.h"
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namespace Info {
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namespace Settings {
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Memento::Memento(not_null<UserData*> self, Type type)
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: ContentMemento(Tag{ self })
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, _type(type) {
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}
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Section Memento::section() const {
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	return Section(_type);
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}
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object_ptr<ContentWidget> Memento::createWidget(
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		QWidget *parent,
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		not_null<Controller*> controller,
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		const QRect &geometry) {
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	auto result = object_ptr<Widget>(
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		parent,
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		controller);
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	result->setInternalState(geometry, this);
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	return result;
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}
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Memento::~Memento() = default;
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Widget::Widget(
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	QWidget *parent,
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	not_null<Controller*> controller)
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: ContentWidget(parent, controller)
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, _self(controller->key().settingsSelf())
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, _type(controller->section().settingsType())
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, _inner(setInnerWidget(
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	::Settings::CreateSection(
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		_type,
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		this,
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		controller->parentController()))) {
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	_inner->sectionShowOther(
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	) | rpl::start_with_next([=](Type type) {
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		controller->showSettings(type);
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	}, _inner->lifetime());
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	controller->setCanSaveChanges(_inner->sectionCanSaveChanges());
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}
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Widget::~Widget() = default;
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not_null<UserData*> Widget::self() const {
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	return _self;
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}
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bool Widget::showInternal(not_null<ContentMemento*> memento) {
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	//if (const auto myMemento = dynamic_cast<Memento*>(memento.get())) {
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	//	Assert(myMemento->self() == self());
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	//	if (_inner->showInternal(myMemento)) {
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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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void Widget::setInternalState(
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		const QRect &geometry,
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		not_null<Memento*> memento) {
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	setGeometry(geometry);
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	Ui::SendPendingMoveResizeEvents(this);
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	restoreState(memento);
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}
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rpl::producer<bool> Widget::canSaveChanges() const {
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	return _inner->sectionCanSaveChanges();
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}
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void Widget::saveChanges(FnMut<void()> done) {
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	_inner->sectionSaveChanges(std::move(done));
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}
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rpl::producer<bool> Widget::desiredShadowVisibility() const {
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	return (_type == Type::Main || _type == Type::Information)
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		? ContentWidget::desiredShadowVisibility()
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		: rpl::single(true);
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}
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std::unique_ptr<ContentMemento> Widget::doCreateMemento() {
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	auto result = std::make_unique<Memento>(self(), _type);
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	saveState(result.get());
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	return result;
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}
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void Widget::saveState(not_null<Memento*> memento) {
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	memento->setScrollTop(scrollTopSave());
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}
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void Widget::restoreState(not_null<Memento*> memento) {
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	const auto scrollTop = memento->scrollTop();
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	scrollTopRestore(memento->scrollTop());
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}
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} // namespace Settings
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} // namespace Info
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