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	diff --git a/src/dialogs/certifywidget.cpp b/src/dialogs/certifywidget.cpp
	index c06ef999b..0e816840f 100644
	--- a/src/dialogs/certifywidget.cpp
	+++ b/src/dialogs/certifywidget.cpp
	@@ -1,826 +1,837 @@
	/* dialogs/certifywidget.cpp

	This file is part of Kleopatra, the KDE keymanager
	SPDX-FileCopyrightText: 2019, 2021 g10 Code GmbH
	SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>

	SPDX-License-Identifier: GPL-2.0-or-later
	*/

	#include <config-kleopatra.h>

	#include "certifywidget.h"

	#include <utils/accessibility.h>
	#include <utils/keys.h>
	#include "view/infofield.h"

	+#include <settings.h>
	+
	#include "kleopatra_debug.h"

	#include <KLocalizedString>
	#include <KConfigGroup>
	#include <KDateComboBox>
	#include <KMessageBox>
	#include <KMessageWidget>
	#include <KSeparator>
	#include <KSharedConfig>

	#include <Libkleo/Algorithm>
	#include <Libkleo/DefaultKeyFilter>
	#include <Libkleo/KeySelectionCombo>
	#include <Libkleo/Formatting>
	#include <Libkleo/KeyCache>
	#include <Libkleo/Predicates>

	#include <QGpgME/ChangeOwnerTrustJob>
	#include <QGpgME/Protocol>

	#include <QAction>
	#include <QCheckBox>
	#include <QHBoxLayout>
	#include <QIcon>
	#include <QLabel>
	#include <QLineEdit>
	#include <QListView>
	#include <QParallelAnimationGroup>
	#include <QPropertyAnimation>
	#include <QPushButton>
	#include <QScrollArea>
	#include <QStandardItemModel>
	#include <QToolButton>
	#include <QToolTip>
	#include <QVBoxLayout>

	#include <gpgme++/key.h>

	using namespace Kleo;

	static QDebug operator<<(QDebug s, const GpgME::UserID &userID)
	{
	return s << Formatting::prettyUserID(userID);
	}

	namespace {

	// Maybe move this in its own file
	// based on code from StackOverflow
	class AnimatedExpander: public QWidget
	{
	Q_OBJECT
	public:
	explicit AnimatedExpander(const QString &title,
	const QString &accessibleTitle = {},
	QWidget *parent = nullptr);
	void setContentLayout(QLayout *contentLayout);

	private:
	QGridLayout mainLayout;
	QToolButton toggleButton;
	QFrame headerLine;
	QParallelAnimationGroup toggleAnimation;
	QWidget contentArea;
	int animationDuration{300};
	};

	AnimatedExpander::AnimatedExpander(const QString &title, const QString &accessibleTitle, QWidget *parent)
	: QWidget{parent}
	{
	#ifdef Q_OS_WIN
	// draw dotted focus frame if button has focus; otherwise, draw invisible frame using background color
	toggleButton.setStyleSheet(QStringLiteral("QToolButton { border: 1px solid palette(window); }"
	"QToolButton:focus { border: 1px dotted palette(window-text); }"));
	#else
	// this works with Breeze style because Breeze draws the focus frame when drawing CE_ToolButtonLabel
	// while the Windows styles (and Qt's common base style) draw the focus frame before drawing CE_ToolButtonLabel
	toggleButton.setStyleSheet(QStringLiteral("QToolButton { border: none; }"));
	#endif
	toggleButton.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
	toggleButton.setArrowType(Qt::ArrowType::RightArrow);
	toggleButton.setText(title);
	if (!accessibleTitle.isEmpty()) {
	toggleButton.setAccessibleName(accessibleTitle);
	}
	toggleButton.setCheckable(true);
	toggleButton.setChecked(false);

	headerLine.setFrameShape(QFrame::HLine);
	headerLine.setFrameShadow(QFrame::Sunken);
	headerLine.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Maximum);

	contentArea.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);

	// start out collapsed
	contentArea.setMaximumHeight(0);
	contentArea.setMinimumHeight(0);
	contentArea.setVisible(false);

	// let the entire widget grow and shrink with its content
	toggleAnimation.addAnimation(new QPropertyAnimation(this, "minimumHeight"));
	toggleAnimation.addAnimation(new QPropertyAnimation(this, "maximumHeight"));
	toggleAnimation.addAnimation(new QPropertyAnimation(&contentArea, "maximumHeight"));

	mainLayout.setVerticalSpacing(0);
	mainLayout.setContentsMargins(0, 0, 0, 0);
	int row = 0;
	mainLayout.addWidget(&toggleButton, row, 0, 1, 1, Qt::AlignLeft);
	mainLayout.addWidget(&headerLine, row++, 2, 1, 1);
	mainLayout.addWidget(&contentArea, row, 0, 1, 3);
	setLayout(&mainLayout);
	QObject::connect(&toggleButton, &QToolButton::clicked, [this](const bool checked) {
	if (checked) {
	// make the content visible when expanding starts
	contentArea.setVisible(true);
	}
	toggleButton.setArrowType(checked ? Qt::ArrowType::DownArrow : Qt::ArrowType::RightArrow);
	toggleAnimation.setDirection(checked ? QAbstractAnimation::Forward : QAbstractAnimation::Backward);
	toggleAnimation.start();
	});
	connect(&toggleAnimation, &QAbstractAnimation::finished, [this]() {
	// hide the content area when it is fully collapsed
	if (!toggleButton.isChecked()) {
	contentArea.setVisible(false);
	}
	});
	}

	void AnimatedExpander::setContentLayout(QLayout *contentLayout)
	{
	delete contentArea.layout();
	contentArea.setLayout(contentLayout);
	const auto collapsedHeight = sizeHint().height() - contentArea.maximumHeight();
	auto contentHeight = contentLayout->sizeHint().height();
	for (int i = 0; i < toggleAnimation.animationCount() - 1; ++i) {
	auto expanderAnimation = static_cast<QPropertyAnimation *>(toggleAnimation.animationAt(i));
	expanderAnimation->setDuration(animationDuration);
	expanderAnimation->setStartValue(collapsedHeight);
	expanderAnimation->setEndValue(collapsedHeight + contentHeight);
	}
	auto contentAnimation = static_cast<QPropertyAnimation *>(toggleAnimation.animationAt(toggleAnimation.animationCount() - 1));
	contentAnimation->setDuration(animationDuration);
	contentAnimation->setStartValue(0);
	contentAnimation->setEndValue(contentHeight);
	}

	class SecKeyFilter: public DefaultKeyFilter
	{
	public:
	SecKeyFilter() : DefaultKeyFilter()
	{
	setRevoked(DefaultKeyFilter::NotSet);
	setExpired(DefaultKeyFilter::NotSet);
	setHasSecret(DefaultKeyFilter::Set);
	setCanCertify(DefaultKeyFilter::Set);
	setIsOpenPGP(DefaultKeyFilter::Set);
	}

	bool matches(const GpgME::Key &key, Kleo::KeyFilter::MatchContexts contexts) const override
	{
	if (!(availableMatchContexts() & contexts)) {
	return false;
	}
	if (_detail::ByFingerprint<std::equal_to>()(key, mExcludedKey)) {
	return false;
	}
	return DefaultKeyFilter::matches(key, contexts);
	}

	void setExcludedKey(const GpgME::Key &key)
	{
	mExcludedKey = key;
	}

	private:
	GpgME::Key mExcludedKey;
	};

	class UserIDItem : public QStandardItem
	{
	public:
	explicit UserIDItem(const GpgME::UserID &uid)
	: mUserId{uid}
	{}

	GpgME::UserID userId()
	{
	return mUserId;
	}

	private:
	GpgME::UserID mUserId;
	};

	class UserIDModel : public QStandardItemModel
	{
	Q_OBJECT
	public:
	enum Role {
	UserID = Qt::UserRole
	};
	explicit UserIDModel(QObject *parent = nullptr) : QStandardItemModel(parent) {}

	GpgME::Key certificateToCertify() const
	{
	return m_key;
	}

	void setKey(const GpgME::Key &key)
	{
	m_key = key;
	clear();
	const std::vector<GpgME::UserID> ids = key.userIDs();
	int i = 0;
	for (const auto &uid: key.userIDs()) {
	if (uid.isRevoked() \|\| uid.isInvalid() \|\| Kleo::isRevokedOrExpired(uid)) {
	// Skip user IDs that cannot really be certified.
	i++;
	continue;
	}
	const auto item = new UserIDItem{uid};
	item->setText(Formatting::prettyUserID(uid));
	item->setCheckable(true);
	item->setEditable(false);
	item->setCheckState(Qt::Checked);
	appendRow(item);
	i++;
	}
	}

	void setCheckedUserIDs(const std::vector<GpgME::UserID> &uids)
	{
	for (int i = 0, end = rowCount(); i != end; ++i) {
	const auto uidItem = userIdItem(i);
	const auto itemUserId = uidItem->userId();
	const bool userIdIsInList = Kleo::any_of(uids, [itemUserId](const auto &uid) {
	return Kleo::userIDsAreEqual(itemUserId, uid);
	});
	uidItem->setCheckState(userIdIsInList ? Qt::Checked : Qt::Unchecked);
	}
	}

	std::vector<GpgME::UserID> checkedUserIDs() const
	{
	std::vector<GpgME::UserID> userIds;
	userIds.reserve(rowCount());
	for (int i = 0; i < rowCount(); ++i) {
	const auto uidItem = userIdItem(i);
	if (uidItem->checkState() == Qt::Checked) {
	userIds.push_back(uidItem->userId());
	}
	}
	qCDebug(KLEOPATRA_LOG) << "Checked user IDs:" << userIds;
	return userIds;
	}

	private:
	UserIDItem *userIdItem(int row) const
	{
	return static_cast<UserIDItem *>(item(row));
	}

	private:
	GpgME::Key m_key;
	};

	auto checkBoxSize(const QCheckBox *checkBox)
	{
	QStyleOptionButton opt;
	return checkBox->style()->sizeFromContents(QStyle::CT_CheckBox, &opt, QSize(), checkBox);
	}

	auto createInfoButton(const QString &text, QWidget *parent)
	{
	auto infoBtn = new QPushButton{parent};
	infoBtn->setIcon(QIcon::fromTheme(QStringLiteral("help-contextual")));
	infoBtn->setFlat(true);

	QObject::connect(infoBtn, &QPushButton::clicked, infoBtn, [infoBtn, text] () {
	const auto pos = infoBtn->mapToGlobal(QPoint()) + QPoint(infoBtn->width(), 0);
	showToolTip(pos, text, infoBtn);
	});

	return infoBtn;
	}

	QString dateFormatWithFourDigitYear(QLocale::FormatType format)
	{
	// Force the year to be formatted as four digit number, so that
	// the user can distinguish between 2006 and 2106.
	return QLocale{}.dateFormat(format).
	replace(QLatin1String("yy"), QLatin1String("yyyy")).
	replace(QLatin1String("yyyyyyyy"), QLatin1String("yyyy"));
	}

	QString formatDate(const QDate &date, QLocale::FormatType format)
	{
	return QLocale{}.toString(date, dateFormatWithFourDigitYear(format));
	}

	class ListView : public QListView
	{
	Q_OBJECT
	public:
	using QListView::QListView;

	protected:
	void focusInEvent(QFocusEvent *event) override
	{
	QListView::focusInEvent(event);
	// queue the invokation, so that it happens after the widget itself got focus
	QMetaObject::invokeMethod(this, &ListView::forceAccessibleFocusEventForCurrentItem, Qt::QueuedConnection);
	}

	private:
	void forceAccessibleFocusEventForCurrentItem()
	{
	// force Qt to send a focus event for the current item to accessibility
	// tools; otherwise, the user has no idea which item is selected when the
	// list gets keyboard input focus
	const auto current = currentIndex();
	setCurrentIndex({});
	setCurrentIndex(current);
	}
	};

	}

	class CertifyWidget::Private
	{
	public:
	Private(CertifyWidget *qq)
	: q{qq}
	{
	auto mainLay = new QVBoxLayout{q};

	{
	auto label = new QLabel{i18n("Verify the fingerprint, mark the user IDs you want to certify, "
	"and select the key you want to certify the user IDs with.<br>"
	"<i>Note: Only the fingerprint clearly identifies the key and its owner.</i>"), q};
	label->setWordWrap(true);
	labelHelper.addLabel(label);
	mainLay->addWidget(label);
	}

	mainLay->addWidget(new KSeparator{Qt::Horizontal, q});

	{
	auto grid = new QGridLayout;
	grid->setColumnStretch(1, 1);
	int row = -1;

	row++;
	mFprField = std::make_unique<InfoField>(i18n("Fingerprint:"), q);
	grid->addWidget(mFprField->label(), row, 0);
	grid->addLayout(mFprField->layout(), row, 1);

	row++;
	auto label = new QLabel{i18n("Certify with:"), q};
	mSecKeySelect = new KeySelectionCombo{/* secretOnly= */true, q};
	mSecKeySelect->setKeyFilter(std::make_shared<SecKeyFilter>());
	label->setBuddy(mSecKeySelect);
	grid->addWidget(label, row, 0);
	grid->addWidget(mSecKeySelect);

	mainLay->addLayout(grid);
	}

	mMissingOwnerTrustInfo = new KMessageWidget{q};
	mSetOwnerTrustAction = new QAction{q};
	mSetOwnerTrustAction->setText(i18nc("@action:button", "Set Owner Trust"));
	mSetOwnerTrustAction->setToolTip(i18nc("@info:tooltip",
	"Click to set the trust level of the selected certification key to ultimate trust. "
	"This is what you usually want to do for your own keys."));
	connect(mSetOwnerTrustAction, &QAction::triggered, q, [this] () { setOwnerTrust(); });
	mMissingOwnerTrustInfo->addAction(mSetOwnerTrustAction);
	mMissingOwnerTrustInfo->setVisible(false);

	mainLay->addWidget(mMissingOwnerTrustInfo);

	mainLay->addWidget(new KSeparator{Qt::Horizontal, q});

	userIdListView = new ListView{q};
	userIdListView->setAccessibleName(i18n("User IDs"));
	userIdListView->setModel(&mUserIDModel);
	mainLay->addWidget(userIdListView, 1);

	// Setup the advanced area
	auto expander = new AnimatedExpander{i18n("Advanced"), i18n("Show advanced options"), q};
	mainLay->addWidget(expander);

	auto advLay = new QVBoxLayout;

	mExportCB = new QCheckBox{q};
	mExportCB->setText(i18n("Certify for everyone to see (exportable)"));
	advLay->addWidget(mExportCB);

	{
	auto layout = new QHBoxLayout;

	mPublishCB = new QCheckBox{q};
	mPublishCB->setText(i18n("Publish on keyserver afterwards"));
	mPublishCB->setEnabled(mExportCB->isChecked());

	layout->addSpacing(checkBoxSize(mExportCB).width());
	layout->addWidget(mPublishCB);

	advLay->addLayout(layout);
	}

	{
	auto tagsLay = new QHBoxLayout;

	auto label = new QLabel{i18n("Tags:"), q};
	mTagsLE = new QLineEdit{q};
	label->setBuddy(mTagsLE);

	auto infoBtn = createInfoButton(i18n("You can use this to add additional info to a certification.") +
	QStringLiteral("<br/><br/>") +
	i18n("Tags created by anyone with full certification trust "
	"are shown in the keylist and can be searched."),
	q);
	infoBtn->setAccessibleName(i18n("Explain tags"));

	tagsLay->addWidget(label);
	tagsLay->addWidget(mTagsLE, 1);
	tagsLay->addWidget(infoBtn);

	advLay->addLayout(tagsLay);
	}

	{
	auto layout = new QHBoxLayout;

	mExpirationCheckBox = new QCheckBox{q};
	mExpirationCheckBox->setText(i18n("Expiration:"));

	mExpirationDateEdit = new KDateComboBox{q};
	mExpirationDateEdit->setOptions(KDateComboBox::EditDate \| KDateComboBox::SelectDate \| KDateComboBox::DatePicker \|
	KDateComboBox::DateKeywords \| KDateComboBox::WarnOnInvalid);
	static const QDate maxAllowedDate{2106, 2, 5};
	const QDate today = QDate::currentDate();
	mExpirationDateEdit->setDateRange(today.addDays(1), maxAllowedDate,
	i18n("The certification must be valid at least until tomorrow."),
	i18n("The latest allowed certification date is %1.",
	formatDate(maxAllowedDate, QLocale::ShortFormat)));
	mExpirationDateEdit->setDateMap({
	{today.addYears(2), i18nc("Date for expiration of certification", "Two years from now")},
	{today.addYears(1), i18nc("Date for expiration of certification", "One year from now")}
	});
	mExpirationDateEdit->setDate(today.addYears(2));
	mExpirationDateEdit->setEnabled(mExpirationCheckBox->isChecked());

	auto infoBtn = createInfoButton(i18n("You can use this to set an expiration date for a certification.") +
	QStringLiteral("<br/><br/>") +
	i18n("By setting an expiration date, you can limit the validity of "
	"your certification to a certain amount of time. Once the expiration "
	"date has passed, your certification is no longer valid."),
	q);
	infoBtn->setAccessibleName(i18n("Explain expiration"));

	layout->addWidget(mExpirationCheckBox);
	layout->addWidget(mExpirationDateEdit, 1);
	layout->addWidget(infoBtn);

	advLay->addLayout(layout);
	}

	{
	auto layout = new QHBoxLayout;

	mTrustSignatureCB = new QCheckBox{q};
	mTrustSignatureCB->setText(i18n("Certify as trusted introducer"));
	auto infoBtn = createInfoButton(i18n("You can use this to certify a trusted introducer for a domain.") +
	QStringLiteral("<br/><br/>") +
	i18n("All certificates with email addresses belonging to the domain "
	"that have been certified by the trusted introducer are treated "
	"as certified, i.e. a trusted introducer acts as a kind of "
	"intermediate CA for a domain."),
	q);
	infoBtn->setAccessibleName(i18n("Explain trusted introducer"));

	layout->addWidget(mTrustSignatureCB, 1);
	layout->addWidget(infoBtn);

	advLay->addLayout(layout);
	}
	{
	auto layout = new QHBoxLayout;

	auto label = new QLabel{i18n("Domain:"), q};

	mTrustSignatureDomainLE = new QLineEdit{q};
	mTrustSignatureDomainLE->setEnabled(mTrustSignatureCB->isChecked());
	label->setBuddy(mTrustSignatureDomainLE);

	layout->addSpacing(checkBoxSize(mTrustSignatureCB).width());
	layout->addWidget(label);
	layout->addWidget(mTrustSignatureDomainLE);

	advLay->addLayout(layout);
	}

	expander->setContentLayout(advLay);

	connect(&mUserIDModel, &QStandardItemModel::itemChanged, q, [this](QStandardItem *item) {
	onItemChanged(item);
	});

	connect(mExportCB, &QCheckBox::toggled, [this] (bool on) {
	mPublishCB->setEnabled(on);
	});

	connect(mSecKeySelect, &KeySelectionCombo::currentKeyChanged, [this] (const GpgME::Key &) {
	updateTags();
	checkOwnerTrust();
	Q_EMIT q->changed();
	});

	connect(mExpirationCheckBox, &QCheckBox::toggled, q, [this] (bool checked) {
	mExpirationDateEdit->setEnabled(checked);
	Q_EMIT q->changed();
	});
	connect(mExpirationDateEdit, &KDateComboBox::dateChanged, q, &CertifyWidget::changed);

	connect(mTrustSignatureCB, &QCheckBox::toggled, q, [this] (bool on) {
	mTrustSignatureDomainLE->setEnabled(on);
	Q_EMIT q->changed();
	});
	connect(mTrustSignatureDomainLE, &QLineEdit::textChanged, q, &CertifyWidget::changed);

	loadConfig();
	}

	~Private() = default;

	void loadConfig()
	{
	+ const Settings settings;
	+ mExpirationCheckBox->setChecked(settings.certificationValidityInDays() > 0);
	+ if (settings.certificationValidityInDays() > 0) {
	+ const QDate expirationDate = QDate::currentDate().addDays(settings.certificationValidityInDays());
	+ mExpirationDateEdit->setDate(expirationDate > mExpirationDateEdit->maximumDate() //
	+ ? mExpirationDateEdit->maximumDate() //
	+ : expirationDate);
	+ }
	+
	const KConfigGroup conf(KSharedConfig::openConfig(), "CertifySettings");
	mSecKeySelect->setDefaultKey(conf.readEntry("LastKey", QString()));
	mExportCB->setChecked(conf.readEntry("ExportCheckState", false));
	mPublishCB->setChecked(conf.readEntry("PublishCheckState", false));
	}

	void updateTags()
	{
	if (mTagsLE->isModified()) {
	return;
	}
	GpgME::Key remarkKey = mSecKeySelect->currentKey();

	if (!remarkKey.isNull()) {
	std::vector<GpgME::UserID> uidsWithRemark;
	QString remark;
	for (const auto &uid: mTarget.userIDs()) {
	GpgME::Error err;
	const char *c_remark = uid.remark(remarkKey, err);
	if (c_remark) {
	const QString candidate = QString::fromUtf8(c_remark);
	if (candidate != remark) {
	qCDebug(KLEOPATRA_LOG) << "Different remarks on user IDs. Taking last.";
	remark = candidate;
	uidsWithRemark.clear();
	}
	uidsWithRemark.push_back(uid);
	}
	}
	// Only select the user IDs with the correct remark
	if (!remark.isEmpty()) {
	selectUserIDs(uidsWithRemark);
	}
	mTagsLE->setText(remark);
	}
	}

	void updateTrustSignatureDomain()
	{
	if (mTrustSignatureDomainLE->text().isEmpty() && mTarget.numUserIDs() == 1) {
	// try to guess the domain to use for the trust signature
	const auto address = mTarget.userID(0).addrSpec();
	const auto atPos = address.find('@');
	if (atPos != std::string::npos) {
	const auto domain = address.substr(atPos + 1);
	mTrustSignatureDomainLE->setText(QString::fromUtf8(domain.c_str(), domain.size()));
	}
	}
	}

	void setTarget(const GpgME::Key &key)
	{
	mFprField->setValue(QStringLiteral("<b>") + Formatting::prettyID(key.primaryFingerprint()) + QStringLiteral("</b>"),
	Formatting::accessibleHexID(key.primaryFingerprint()));
	mUserIDModel.setKey(key);
	mTarget = key;

	auto keyFilter = std::make_shared<SecKeyFilter>();
	keyFilter->setExcludedKey(mTarget);
	mSecKeySelect->setKeyFilter(keyFilter);

	updateTags();
	updateTrustSignatureDomain();
	}

	GpgME::Key secKey() const
	{
	return mSecKeySelect->currentKey();
	}

	void selectUserIDs(const std::vector<GpgME::UserID> &uids)
	{
	mUserIDModel.setCheckedUserIDs(uids);
	}

	std::vector<GpgME::UserID> selectedUserIDs() const
	{
	return mUserIDModel.checkedUserIDs();
	}

	bool exportableSelected() const
	{
	return mExportCB->isChecked();
	}

	bool publishSelected() const
	{
	return mPublishCB->isChecked();
	}

	QString tags() const
	{
	return mTagsLE->text().trimmed();
	}

	GpgME::Key target() const
	{
	return mTarget;
	}

	bool isValid() const
	{
	static const QRegularExpression domainNameRegExp{QStringLiteral(R"(^\s((xn--)?[a-z0-9]+(-[a-z0-9]+)\.)+[a-z]{2,}\s*$)"),
	QRegularExpression::CaseInsensitiveOption};

	// do not accept null keys
	if (mTarget.isNull() \|\| mSecKeySelect->currentKey().isNull()) {
	return false;
	}
	// do not accept empty list of user IDs
	if (selectedUserIDs().empty()) {
	return false;
	}
	// do not accept if the key to certify is selected as certification key;
	// this shouldn't happen because the key to certify is excluded from the choice, but better safe than sorry
	if (_detail::ByFingerprint<std::equal_to>()(mTarget, mSecKeySelect->currentKey())) {
	return false;
	}
	if (mExpirationCheckBox->isChecked() && !mExpirationDateEdit->isValid()) {
	return false;
	}
	if (mTrustSignatureCB->isChecked() && !domainNameRegExp.match(mTrustSignatureDomainLE->text()).hasMatch()) {
	return false;
	}
	return true;
	}

	void checkOwnerTrust()
	{
	const auto secretKey = secKey();
	if (secretKey.ownerTrust() != GpgME::Key::Ultimate) {
	mMissingOwnerTrustInfo->setMessageType(KMessageWidget::Information);
	mMissingOwnerTrustInfo->setIcon(QIcon::fromTheme(QStringLiteral("question")));
	mMissingOwnerTrustInfo->setText(i18n("Is this your own key?"));
	mSetOwnerTrustAction->setEnabled(true);
	mMissingOwnerTrustInfo->animatedShow();
	} else {
	mMissingOwnerTrustInfo->animatedHide();
	}
	}

	void setOwnerTrust()
	{
	mSetOwnerTrustAction->setEnabled(false);
	QGpgME::ChangeOwnerTrustJob *const j = QGpgME::openpgp()->changeOwnerTrustJob();
	connect(j, &QGpgME::ChangeOwnerTrustJob::result, q, [this] (const GpgME::Error &err) {
	if (err) {
	KMessageBox::error(q,
	i18n("<p>Changing the certification trust of the key <b>%1</b> failed:</p><p>%2</p>",
	Formatting::formatForComboBox(secKey()),
	Formatting::errorAsString(err)),
	i18n("Certification Trust Change Failed"));
	}
	if (err \|\| err.isCanceled()) {
	mSetOwnerTrustAction->setEnabled(true);
	} else {
	mMissingOwnerTrustInfo->setMessageType(KMessageWidget::Positive);
	mMissingOwnerTrustInfo->setIcon(QIcon::fromTheme(QStringLiteral("checkmark")));
	mMissingOwnerTrustInfo->setText(i18n("Owner trust set successfully."));
	}
	});
	j->start(secKey(), GpgME::Key::Ultimate);
	}

	void onItemChanged(QStandardItem *item)
	{
	Q_EMIT q->changed();

	#ifndef QT_NO_ACCESSIBILITY
	if (item) {
	// assume that the checked state changed
	QAccessible::State st;
	st.checked = true;
	QAccessibleStateChangeEvent e(userIdListView, st);
	e.setChild(item->index().row());
	QAccessible::updateAccessibility(&e);
	}
	#endif
	}

	public:
	CertifyWidget *const q;
	std::unique_ptr<InfoField> mFprField;
	KeySelectionCombo *mSecKeySelect = nullptr;
	KMessageWidget *mMissingOwnerTrustInfo = nullptr;
	ListView *userIdListView = nullptr;
	QCheckBox *mExportCB = nullptr;
	QCheckBox *mPublishCB = nullptr;
	QLineEdit *mTagsLE = nullptr;
	QCheckBox *mTrustSignatureCB = nullptr;
	QLineEdit *mTrustSignatureDomainLE = nullptr;
	QCheckBox *mExpirationCheckBox = nullptr;
	KDateComboBox *mExpirationDateEdit = nullptr;
	QAction *mSetOwnerTrustAction = nullptr;

	LabelHelper labelHelper;

	UserIDModel mUserIDModel;
	GpgME::Key mTarget;
	};

	CertifyWidget::CertifyWidget(QWidget *parent)
	: QWidget{parent}
	, d{std::make_unique<Private>(this)}
	{
	}

	Kleo::CertifyWidget::~CertifyWidget() = default;

	void CertifyWidget::setTarget(const GpgME::Key &key)
	{
	d->setTarget(key);
	}

	GpgME::Key CertifyWidget::target() const
	{
	return d->target();
	}

	void CertifyWidget::selectUserIDs(const std::vector<GpgME::UserID> &uids)
	{
	d->selectUserIDs(uids);
	}

	std::vector<GpgME::UserID> CertifyWidget::selectedUserIDs() const
	{
	return d->selectedUserIDs();
	}

	GpgME::Key CertifyWidget::secKey() const
	{
	return d->secKey();
	}

	bool CertifyWidget::exportableSelected() const
	{
	return d->exportableSelected();
	}

	QString CertifyWidget::tags() const
	{
	return d->tags();
	}

	bool CertifyWidget::publishSelected() const
	{
	return d->publishSelected();
	}

	bool CertifyWidget::trustSignatureSelected() const
	{
	return d->mTrustSignatureCB->isChecked();
	}

	QString CertifyWidget::trustSignatureDomain() const
	{
	return d->mTrustSignatureDomainLE->text().trimmed();
	}

	QDate CertifyWidget::expirationDate() const
	{
	return d->mExpirationCheckBox->isChecked() ? d->mExpirationDateEdit->date() : QDate{};
	}

	bool CertifyWidget::isValid() const
	{
	return d->isValid();
	}

	// For UserID model
	#include "certifywidget.moc"
	diff --git a/src/kcfg/settings.kcfg b/src/kcfg/settings.kcfg
	index f7c4c582a..7d4263fec 100644
	--- a/src/kcfg/settings.kcfg
	+++ b/src/kcfg/settings.kcfg
	@@ -1,190 +1,198 @@
	<?xml version="1.0" encoding="UTF-8"?>
	<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
	http://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >
	<kcfgfile name="kleopatrarc" />
	<group name="CertificateCreationWizard">
	<entry key="CN_placeholder" name="cnPlaceholder" type="String">
	<label>Placeholder for CN</label>
	<whatsthis>This text will be used as placeholder text for the common name (CN) field of S/MIME certificates.</whatsthis>
	<default></default>
	</entry>
	<entry key="CN_prefill" name="prefillCN" type="Bool">
	<label>Prefill CN automatically</label>
	<whatsthis>If true, then the common name (CN) field of S/MIME certificates will be prefilled with information gathered from the system,
	e.g., from the email settings of the desktop or, on Windows, from the Active Directory.</whatsthis>
	<default>true</default>
	</entry>
	<entry key="EMAIL_placeholder" name="emailPlaceholder" type="String">
	<label>Placeholder for EMAIL</label>
	<whatsthis>This text will be used as placeholder text for the email address field of OpenPGP and S/MIME certificates.</whatsthis>
	<default></default>
	</entry>
	<entry key="EMAIL_prefill" name="prefillEmail" type="Bool">
	<label>Prefill EMAIL automatically</label>
	<whatsthis>If true, then the email address field of OpenPGP and S/MIME certificates will be prefilled with information gathered from the system,
	e.g., from the email settings of the desktop or, on Windows, from the Active Directory.</whatsthis>
	<default>true</default>
	</entry>
	<entry key="NAME_placeholder" name="namePlaceholder" type="String">
	<label>Placeholder for NAME</label>
	<whatsthis>This text will be used as placeholder text for the name field of OpenPGP certificates.</whatsthis>
	<default></default>
	</entry>
	<entry key="NAME_prefill" name="prefillName" type="Bool">
	<label>Prefill NAME automatically</label>
	<whatsthis>If true, then the name field of OpenPGP certificates will be prefilled with information gathered from the system,
	e.g., from the email settings of the desktop or, on Windows, from the Active Directory.</whatsthis>
	<default>true</default>
	</entry>
	<entry key="ValidityPeriodInDays" type="Int">
	<label>Default validity period</label>
	<tooltip>Specifies the default validity period of new OpenPGP keys in days.</tooltip>
	<whatsthis>This setting specifies how many days a new OpenPGP key is valid by default, or, in other words, after how many days the key will expire. Set this to 0 for unlimited validity. If this setting is not set or if it is set to a negative value, then new OpenPGP keys will be valid for two years (possibly clamped to the allowed minimum or maximum validity period) by default.</whatsthis>
	<default>-1</default>
	</entry>
	<entry key="ValidityPeriodInDaysMin" type="Int">
	<label>Minimum validity period</label>
	<tooltip>Specifies the minimum validity period of new OpenPGP keys in days.</tooltip>
	<whatsthis>This setting specifies how many days a new OpenPGP key is valid at least, or, in other words, after how many days the new key will expire at the earliest.</whatsthis>
	<default>0</default>
	</entry>
	<entry key="ValidityPeriodInDaysMax" type="Int">
	<label>Maximum validity period</label>
	<tooltip>Specifies the maximum validity period of new OpenPGP keys in days.</tooltip>
	<whatsthis>This setting specifies how many days a new OpenPGP key is valid at most, or, in other words, after how many days the new key will expire at the latest. If this setting is not set or if it is set to a negative value, then unlimited validity is allowed.</whatsthis>
	<default>-1</default>
	</entry>
	<entry key="HideAdvanced" type="Bool">
	<label>Hide advanced settings</label>
	<whatsthis>If true, hides the advanced settings button in the new certificate wizard.</whatsthis>
	<default>false</default>
	</entry>
	</group>
	+ <group name="Certification">
	+ <entry key="CertificationValidityInDays" type="Int">
	+ <label>Default certification validity</label>
	+ <tooltip>Specifies the default validity of certifications in days.</tooltip>
	+ <whatsthis>This setting specifies how many days a certification is valid by default, or, in other words, after how many days a new certification will expire. Set this to 0 for unlimited validity of certifications.</whatsthis>
	+ <default>0</default>
	+ </entry>
	+ </group>
	<group name="ChecksumOperations">
	<entry key="checksum-definition-id" name="ChecksumDefinitionId" type="String">
	<label>Checksum program to use when creating checksum files</label>
	<default>sha256sum</default>
	</entry>
	</group>
	<group name="Clipboard">
	<entry key="ShowResultsAfterSigning" name="ShowResultsAfterSigningClipboard" type="Bool">
	<label>Show results after signing</label>
	<whatsthis>If true, then the results are shown after successfully signing the clipboard.</whatsthis>
	<default>true</default>
	</entry>
	<entry key="ShowResultsAfterEncryption" name="ShowResultsAfterEncryptingClipboard" type="Bool">
	<label>Show results after encryption</label>
	<whatsthis>If true, then the results are shown after successfully encrypting the clipboard.</whatsthis>
	<default>true</default>
	</entry>
	</group>
	<group name="CMS">
	<entry key="Enabled" name="cmsEnabled" type="Bool">
	<label>Enable S/MIME</label>
	<tooltip>Enables support for S/MIME (CMS).</tooltip>
	<whatsthis>If false, then Kleopatra's main UI will not offer any functionality related to S/MIME (CMS).</whatsthis>
	<default>true</default>
	</entry>
	<entry key="AllowCertificateCreation" name="cmsCertificateCreationAllowed" type="Bool">
	<label>Allow S/MIME certificate creation</label>
	<tooltip>Allows the creation of S/MIME certificate signing requests.</tooltip>
	<whatsthis>If false, then Kleopatra will not offer the creation of S/MIME certificate signing requests.</whatsthis>
	<default>true</default>
	</entry>
	<entry key="AllowSigning" name="cmsSigningAllowed" type="Bool">
	<label>Allow signing with S/MIME certificates</label>
	<tooltip>Allows signing of text or files with S/MIME certificates.</tooltip>
	<whatsthis>If false, then Kleopatra will not offer functionality for creating signatures with S/MIME certificates.</whatsthis>
	<default>true</default>
	</entry>
	</group>
	<group name="ConfigurationDialog">
	<entry name="ShowAppearanceConfiguration" type="Bool">
	<label>Show appearance configuration</label>
	<default>true</default>
	</entry>
	<entry name="ShowCryptoOperationsConfiguration" type="Bool">
	<label>Show crypto operations configuration</label>
	<default>true</default>
	</entry>
	<entry name="ShowDirectoryServicesConfiguration" type="Bool">
	<label>Show directory services configuration</label>
	<default>true</default>
	</entry>
	<entry name="ShowGnuPGSystemConfiguration" type="Bool">
	<label>Show GnuPG system configuration</label>
	<default>true</default>
	</entry>
	<entry name="ShowSmartCardsConfiguration" type="Bool">
	<label>Show smart cards configuration</label>
	<default>true</default>
	</entry>
	<entry name="ShowSMimeValidationConfiguration" type="Bool">
	<label>Show S/MIME validation configuration</label>
	<default>true</default>
	</entry>
	</group>
	<group name="DN">
	<entry name="AttributeOrder" type="StringList">
	<label>DN-Attribute Order</label>
	<tooltip>Specifies the display order of the DN attributes of X.509 certificates.</tooltip>
	<default></default>
	</entry>
	</group>
	<group name="Groups">
	<entry name="GroupsEnabled" type="Bool">
	<label>Enable Groups</label>
	<tooltip>Enable usage of groups of keys.</tooltip>
	<whatsthis>Enable usage of groups of keys to create lists of recipients.</whatsthis>
	<default>true</default>
	</entry>
	</group>
	<group name="Import">
	<entry name="RetrieveSignerKeysAfterImport" type="Bool">
	<label>Retrieve signer keys after import</label>
	<whatsthis>If enabled, then Kleopatra will automatically try to retrieve the keys
	that were used to certify the user ids of newly imported OpenPGP keys. This is
	useful in combination with trusted introducers.</whatsthis>
	<default>false</default>
	</entry>
	</group>
	<group name="Notifications">
	<entry name="ShowExpiryNotifications" type="Bool">
	<label>Notify about upcoming certificate expiration</label>
	<whatsthis>If enabled, then Kleopatra will show notifications in some place when using
	certificates that are about to expire soon.</whatsthis>
	<default>true</default>
	</entry>
	</group>
	<group name="Privacy">
	<entry name="BlockedUrlSchemes" type="StringList">
	<label>URL schemes to block</label>
	<whatsthis>This is a list of URL schemes that shall be blocked by the application.
	This can be used to prevent the application from opening external applications for certain URLs.</whatsthis>
	<default></default>
	</entry>
	</group>
	<group name="Smartcard">
	<entry name="AlwaysSearchCardOnKeyserver" type="Bool">
	<label>Always search smartcard certificates on keyserver</label>
	<tooltip>Searches for the certificates belonging the smartcard keys on the configured keyserver.</tooltip>
	<whatsthis>Searches on keyservers regardless of the protocol for the smartcards key, regardless
	of the keyserver protocol. Default behavior is to only do this for LDAP keyservers.</whatsthis>
	<default>false</default>
	</entry>
	<entry key="AutoLoadP15Certs" name="autoLoadP15Certs" type="Bool">
	<label>Try to load S/MIME certificates from PKCS#15 smartcards</label>
	<tooltip>Automatically load S/MIME certificates from PKCS#15 (CardOS) smartcards</tooltip>
	<whatsthis>If true, then Kleopatra will call gpgsm --learn if a PKCS#15 Smartcard is inserted with unknown certificates. This can take a while and blocks the smartcard while the command is running.</whatsthis>
	<default>true</default>
	</entry>
	</group>
	<group name="General">
	<entry name="ProfilesDisabled" type="Bool">
	<label>Disable profile settings</label>
	<default>false</default>
	</entry>
	</group>
	</kcfg>

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