diff --git a/src/crypto/gui/certificatelineedit.cpp b/src/crypto/gui/certificatelineedit.cpp
index 7393fdd8d..c5755d256 100644
--- a/src/crypto/gui/certificatelineedit.cpp
+++ b/src/crypto/gui/certificatelineedit.cpp
@@ -1,561 +1,567 @@
 /*  crypto/gui/certificatelineedit.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
     SPDX-FileCopyrightText: 2021, 2022 g10 Code GmbH
     SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "certificatelineedit.h"
 
 #include "commands/detailscommand.h"
 #include "dialogs/groupdetailsdialog.h"
 #include "view/errorlabel.h"
 
 #include <QCompleter>
 #include <QPushButton>
 #include <QAction>
 #include <QSignalBlocker>
 
 #include "kleopatra_debug.h"
 
 #include <Libkleo/KeyCache>
 #include <Libkleo/KeyFilter>
 #include <Libkleo/KeyGroup>
 #include <Libkleo/KeyList>
 #include <Libkleo/KeyListModel>
 #include <Libkleo/KeyListSortFilterProxyModel>
 #include <Libkleo/Formatting>
 
 #include <KLocalizedString>
 
 #include <gpgme++/key.h>
 
 #include <QGpgME/KeyListJob>
 #include <QGpgME/Protocol>
 
 #include <QHBoxLayout>
 #include <QLabel>
 #include <QLineEdit>
 #include <QMenu>
 #include <QToolButton>
 
 using namespace Kleo;
 using namespace GpgME;
 
 Q_DECLARE_METATYPE(GpgME::Key)
 Q_DECLARE_METATYPE(KeyGroup)
 
 static QStringList s_lookedUpKeys;
 
 namespace
 {
 class CompletionProxyModel : public KeyListSortFilterProxyModel
 {
     Q_OBJECT
 
 public:
     CompletionProxyModel(QObject *parent = nullptr)
         : KeyListSortFilterProxyModel(parent)
     {
     }
 
     int columnCount(const QModelIndex &parent = QModelIndex()) const override
     {
         Q_UNUSED(parent)
         // pretend that there is only one column to workaround a bug in
         // QAccessibleTable which provides the accessibility interface for the
         // completion pop-up
         return 1;
     }
 
     QVariant data(const QModelIndex &idx, int role) const override
     {
         if (!idx.isValid()) {
             return QVariant();
         }
 
         switch (role) {
         case Qt::DecorationRole: {
             const auto key = KeyListSortFilterProxyModel::data(idx, KeyList::KeyRole).value<GpgME::Key>();
             if (!key.isNull()) {
                 return Kleo::Formatting::iconForUid(key.userID(0));
             }
 
             const auto group = KeyListSortFilterProxyModel::data(idx, KeyList::GroupRole).value<KeyGroup>();
             if (!group.isNull()) {
                 return QIcon::fromTheme(QStringLiteral("group"));
             }
 
             Q_ASSERT(!key.isNull() || !group.isNull());
             return QVariant();
         }
         default:
             return KeyListSortFilterProxyModel::data(index(idx.row(), KeyList::Summary), role);
         }
     }
 };
 
 auto createSeparatorAction(QObject *parent)
 {
     auto action = new QAction{parent};
     action->setSeparator(true);
     return action;
 }
 } // namespace
 
 class CertificateLineEdit::Private
 {
     CertificateLineEdit *q;
 
 public:
     enum class Status
     {
         Empty,      //< text is empty
         Success,    //< a certificate or group is set
         None,       //< entered text does not match any certificates or groups
         Ambiguous,  //< entered text matches multiple certificates or groups
     };
 
     explicit Private(CertificateLineEdit *qq, AbstractKeyListModel *model, KeyFilter *filter);
 
     QString text() const;
 
     void setKey(const GpgME::Key &key);
 
     void setGroup(const KeyGroup &group);
 
     void setKeyFilter(const std::shared_ptr<KeyFilter> &filter);
 
     void updateKey();
     void editChanged();
     void editFinished();
     void checkLocate();
 
 private:
     void openDetailsDialog();
     void setTextWithBlockedSignals(const QString &s);
     void showContextMenu(const QPoint &pos);
     QString errorMessage() const;
     void updateErrorLabel();
 
 public:
     Status mStatus = Status::Empty;
     GpgME::Key mKey;
     KeyGroup mGroup;
 
     struct Ui {
         Ui(QWidget *parent)
             : lineEdit{parent}
             , button{parent}
             , errorLabel{parent}
         {}
 
         QLineEdit lineEdit;
         QToolButton button;
         ErrorLabel errorLabel;
     } ui;
 
 private:
     KeyListSortFilterProxyModel *const mFilterModel;
     KeyListSortFilterProxyModel *const mCompleterFilterModel;
     QCompleter *mCompleter = nullptr;
     std::shared_ptr<KeyFilter> mFilter;
     bool mEditStarted = false;
     bool mEditFinished = false;
     QAction *const mStatusAction;
     QAction *const mShowDetailsAction;
 };
 
 CertificateLineEdit::Private::Private(CertificateLineEdit *qq, AbstractKeyListModel *model, KeyFilter *filter)
     : q{qq}
     , ui{qq}
     , mFilterModel{new KeyListSortFilterProxyModel{qq}}
     , mCompleterFilterModel{new CompletionProxyModel{qq}}
     , mCompleter{new QCompleter{qq}}
     , mFilter{std::shared_ptr<KeyFilter>{filter}}
     , mStatusAction{new QAction{qq}}
     , mShowDetailsAction{new QAction{qq}}
 {
     ui.lineEdit.setPlaceholderText(i18n("Please enter a name or email address..."));
     ui.lineEdit.setClearButtonEnabled(true);
     ui.lineEdit.setContextMenuPolicy(Qt::CustomContextMenu);
     ui.lineEdit.addAction(mStatusAction, QLineEdit::LeadingPosition);
 
     mCompleterFilterModel->setKeyFilter(mFilter);
     mCompleterFilterModel->setSourceModel(model);
     mCompleter->setModel(mCompleterFilterModel);
     mCompleter->setFilterMode(Qt::MatchContains);
     mCompleter->setCaseSensitivity(Qt::CaseInsensitive);
     ui.lineEdit.setCompleter(mCompleter);
 
     ui.button.setIcon(QIcon::fromTheme(QStringLiteral("resource-group-new")));
     ui.button.setToolTip(i18n("Show certificate list"));
     ui.button.setAccessibleName(i18n("Show certificate list"));
 
     ui.errorLabel.setVisible(false);
 
     auto vbox = new QVBoxLayout{q};
     vbox->setContentsMargins(0, 0, 0, 0);
 
     auto l = new QHBoxLayout;
     l->setContentsMargins(0, 0, 0, 0);
     l->addWidget(&ui.lineEdit);
     l->addWidget(&ui.button);
 
     vbox->addLayout(l);
     vbox->addWidget(&ui.errorLabel);
 
     q->setFocusPolicy(ui.lineEdit.focusPolicy());
     q->setFocusProxy(&ui.lineEdit);
 
     mShowDetailsAction->setIcon(QIcon::fromTheme(QStringLiteral("help-about")));
     mShowDetailsAction->setText(i18nc("@action:inmenu", "Show Details"));
     mShowDetailsAction->setEnabled(false);
 
     mFilterModel->setSourceModel(model);
     mFilterModel->setFilterKeyColumn(KeyList::Summary);
     if (filter) {
         mFilterModel->setKeyFilter(mFilter);
     }
 
     connect(KeyCache::instance().get(), &Kleo::KeyCache::keyListingDone,
             q, [this]() { updateKey(); });
     connect(KeyCache::instance().get(), &Kleo::KeyCache::groupUpdated,
             q, [this](const KeyGroup &group) {
                 if (!mGroup.isNull() && mGroup.source() == group.source() && mGroup.id() == group.id()) {
                     setTextWithBlockedSignals(Formatting::summaryLine(group));
                     // queue the update to ensure that the model has been updated
                     QMetaObject::invokeMethod(q, [this]() { updateKey(); }, Qt::QueuedConnection);
                 }
             });
     connect(KeyCache::instance().get(), &Kleo::KeyCache::groupRemoved,
             q, [this](const KeyGroup &group) {
                 if (!mGroup.isNull() && mGroup.source() == group.source() && mGroup.id() == group.id()) {
                     mGroup = KeyGroup();
                     QSignalBlocker blocky{&ui.lineEdit};
                     ui.lineEdit.clear();
                     // queue the update to ensure that the model has been updated
                     QMetaObject::invokeMethod(q, [this]() { updateKey(); }, Qt::QueuedConnection);
                 }
             });
     connect(&ui.lineEdit, &QLineEdit::editingFinished,
             q, [this]() {
                 // queue the call of editFinished() to ensure that QCompleter::activated is handled first
                 QMetaObject::invokeMethod(q, [this]() { editFinished(); }, Qt::QueuedConnection);
             });
     connect(&ui.lineEdit, &QLineEdit::textChanged,
             q, [this]() { editChanged(); });
     connect(&ui.lineEdit, &QLineEdit::customContextMenuRequested,
             q, [this](const QPoint &pos) { showContextMenu(pos); });
     connect(mStatusAction, &QAction::triggered,
             q, [this]() { openDetailsDialog(); });
     connect(mShowDetailsAction, &QAction::triggered,
             q, [this]() { openDetailsDialog(); });
     connect(&ui.button, &QToolButton::clicked,
             q, &CertificateLineEdit::certificateSelectionRequested);
     connect(mCompleter, qOverload<const QModelIndex &>(&QCompleter::activated),
             q, [this] (const QModelIndex &index) {
                 Key key = mCompleter->completionModel()->data(index, KeyList::KeyRole).value<Key>();
                 auto group = mCompleter->completionModel()->data(index, KeyList::GroupRole).value<KeyGroup>();
                 if (!key.isNull()) {
                     q->setKey(key);
                 } else if (!group.isNull()) {
                     q->setGroup(group);
                 } else {
                     qCDebug(KLEOPATRA_LOG) << "Activated item is neither key nor group";
                 }
             });
     updateKey();
 }
 
 void CertificateLineEdit::Private::openDetailsDialog()
 {
     if (!q->key().isNull()) {
         auto cmd = new Commands::DetailsCommand{q->key(), nullptr};
         cmd->setParentWidget(q);
         cmd->start();
     } else if (!q->group().isNull()) {
         auto dlg = new Dialogs::GroupDetailsDialog{q};
         dlg->setAttribute(Qt::WA_DeleteOnClose);
         dlg->setGroup(q->group());
         dlg->show();
     }
 }
 
 void CertificateLineEdit::Private::setTextWithBlockedSignals(const QString &s)
 {
     QSignalBlocker blocky{&ui.lineEdit};
     ui.lineEdit.setText(s);
 }
 
 void CertificateLineEdit::Private::showContextMenu(const QPoint &pos)
 {
     if (QMenu *menu = ui.lineEdit.createStandardContextMenu()) {
         auto *const firstStandardAction = menu->actions().value(0);
         menu->insertActions(firstStandardAction,
                             {mShowDetailsAction, createSeparatorAction(menu)});
         menu->setAttribute(Qt::WA_DeleteOnClose);
         menu->popup(ui.lineEdit.mapToGlobal(pos));
     }
 }
 
 CertificateLineEdit::CertificateLineEdit(AbstractKeyListModel *model,
                                          KeyFilter *filter,
                                          QWidget *parent)
     : QWidget{parent}
     , d{new Private{this, model, filter}}
 {
     /* Take ownership of the model to prevent double deletion when the
      * filter models are deleted */
     model->setParent(parent ? parent : this);
 }
 
 CertificateLineEdit::~CertificateLineEdit() = default;
 
 void CertificateLineEdit::Private::editChanged()
 {
     mEditFinished = false;
     updateKey();
     if (!mEditStarted) {
         Q_EMIT q->editingStarted();
         mEditStarted = true;
     }
 }
 
 void CertificateLineEdit::Private::editFinished()
 {
     mEditStarted = false;
     mEditFinished = true;
     updateKey();
     if (!q->key().isNull()) {
         setTextWithBlockedSignals(Formatting::summaryLine(q->key()));
     } else if (!q->group().isNull()) {
         setTextWithBlockedSignals(Formatting::summaryLine(q->group()));
     } else if (mStatus == Status::None) {
         checkLocate();
     }
 }
 
 void CertificateLineEdit::Private::checkLocate()
 {
     if (mStatus != Status::None) {
         // try to locate key only if text matches no local certificates or groups
         return;
     }
 
     // Only check once per mailbox
     const auto mailText = ui.lineEdit.text().trimmed();
     if (mailText.isEmpty() || s_lookedUpKeys.contains(mailText)) {
         return;
     }
     s_lookedUpKeys << mailText;
     qCDebug(KLEOPATRA_LOG) << "Lookup job for" << mailText;
     auto job = QGpgME::openpgp()->locateKeysJob();
     job->start({mailText}, /*secretOnly=*/false);
 }
 
 void CertificateLineEdit::Private::updateKey()
 {
     static const _detail::ByFingerprint<std::equal_to> keysHaveSameFingerprint;
 
     const auto mailText = ui.lineEdit.text().trimmed();
     auto newKey = Key();
     auto newGroup = KeyGroup();
     if (mailText.isEmpty()) {
         mStatus = Status::Empty;
         mStatusAction->setIcon(QIcon::fromTheme(QStringLiteral("emblem-unavailable")));
         mStatusAction->setToolTip({});
     } else {
         mFilterModel->setFilterFixedString(mailText);
         if (mFilterModel->rowCount() > 1) {
             // keep current key or group if they still match
             if (!mKey.isNull()) {
                 for (int row = 0; row < mFilterModel->rowCount(); ++row) {
                     const QModelIndex index = mFilterModel->index(row, 0);
                     Key key = mFilterModel->key(index);
                     if (!key.isNull() && keysHaveSameFingerprint(key, mKey)) {
                         newKey = mKey;
                         break;
                     }
                 }
             } else if (!mGroup.isNull()) {
                 newGroup = mGroup;
                 for (int row = 0; row < mFilterModel->rowCount(); ++row) {
                     const QModelIndex index = mFilterModel->index(row, 0);
                     KeyGroup group = mFilterModel->group(index);
                     if (!group.isNull() && group.source() == mGroup.source() && group.id() == mGroup.id()) {
                         newGroup = mGroup;
                         break;
                     }
                 }
             }
             if (newKey.isNull() && newGroup.isNull()) {
                 mStatus = Status::Ambiguous;
                 mStatusAction->setIcon(QIcon::fromTheme(QStringLiteral("emblem-question")));
                 mStatusAction->setToolTip(i18n("Multiple matching certificates or groups found"));
             }
         } else if (mFilterModel->rowCount() == 1) {
             const auto index = mFilterModel->index(0, 0);
             newKey = mFilterModel->data(index, KeyList::KeyRole).value<Key>();
             newGroup = mFilterModel->data(index, KeyList::GroupRole).value<KeyGroup>();
             Q_ASSERT(!newKey.isNull() || !newGroup.isNull());
             if (newKey.isNull() && newGroup.isNull()) {
                 mStatus = Status::None;
                 mStatusAction->setIcon(QIcon::fromTheme(QStringLiteral("emblem-error")));
                 mStatusAction->setToolTip(i18n("No matching certificates or groups found"));
             }
         } else {
             mStatus = Status::None;
             mStatusAction->setIcon(QIcon::fromTheme(QStringLiteral("emblem-error")));
             mStatusAction->setToolTip(i18n("No matching certificates or groups found"));
         }
     }
     mKey = newKey;
     mGroup = newGroup;
 
     if (!mKey.isNull()) {
         /* FIXME: This needs to be solved by a multiple UID supporting model */
         mStatus = Status::Success;
         mStatusAction->setIcon(Formatting::iconForUid(mKey.userID(0)));
         mStatusAction->setToolTip(Formatting::validity(mKey.userID(0)));
         ui.lineEdit.setToolTip(Formatting::toolTip(mKey, Formatting::ToolTipOption::AllOptions));
     } else if (!mGroup.isNull()) {
         mStatus = Status::Success;
         mStatusAction->setIcon(Formatting::validityIcon(mGroup));
         mStatusAction->setToolTip(Formatting::validity(mGroup));
         ui.lineEdit.setToolTip(Formatting::toolTip(mGroup, Formatting::ToolTipOption::AllOptions));
     } else {
         ui.lineEdit.setToolTip({});
     }
 
     mShowDetailsAction->setEnabled(mStatus == Status::Success);
     updateErrorLabel();
 
     Q_EMIT q->keyChanged();
 
     if (mailText.isEmpty()) {
         Q_EMIT q->wantsRemoval(q);
     }
 }
 
 QString CertificateLineEdit::Private::errorMessage() const
 {
     switch (mStatus) {
     case Status::Empty:
     case Status::Success:
         return {};
     case Status::None:
         return i18n("No matching certificates or groups found");
     case Status::Ambiguous:
         return i18n("Multiple matching certificates or groups found");
     default:
         qDebug(KLEOPATRA_LOG) << __func__ << "Invalid status:" << static_cast<int>(mStatus);
         Q_ASSERT(!"Invalid status");
     };
 }
 
 void CertificateLineEdit::Private::updateErrorLabel()
 {
     const auto currentErrorMessage = ui.errorLabel.text();
     const auto newErrorMessage = errorMessage();
     if (newErrorMessage == currentErrorMessage) {
         return;
     }
     if (currentErrorMessage.isEmpty() && !mEditFinished) {
         // delay showing the error message until editing is finished, so that we
         // do not annoy the user with an error message while they are still
         // entering the recipient;
         // on the other hand, we clear the error message immediately if it does
         // not apply anymore and we update the error message immediately if it
         // changed
         return;
     }
     ui.errorLabel.setVisible(!newErrorMessage.isEmpty());
     ui.errorLabel.setText(newErrorMessage);
 }
 
 Key CertificateLineEdit::key() const
 {
     if (isEnabled()) {
         return d->mKey;
     } else {
         return Key();
     }
 }
 
 KeyGroup CertificateLineEdit::group() const
 {
     if (isEnabled()) {
         return d->mGroup;
     } else {
         return KeyGroup();
     }
 }
 
 QString CertificateLineEdit::Private::text() const
 {
     return ui.lineEdit.text().trimmed();
 }
 
 QString CertificateLineEdit::text() const
 {
     return d->text();
 }
 
 void CertificateLineEdit::Private::setKey(const Key &key)
 {
     mKey = key;
     mGroup = KeyGroup();
     qCDebug(KLEOPATRA_LOG) << "Setting Key. " << Formatting::summaryLine(key);
     setTextWithBlockedSignals(Formatting::summaryLine(key));
     updateKey();
 }
 
 void CertificateLineEdit::setKey(const Key &key)
 {
     d->setKey(key);
 }
 
 void CertificateLineEdit::Private::setGroup(const KeyGroup &group)
 {
     mGroup = group;
     mKey = Key();
     const QString summary = Formatting::summaryLine(group);
     qCDebug(KLEOPATRA_LOG) << "Setting KeyGroup. " << summary;
     setTextWithBlockedSignals(summary);
     updateKey();
 }
 
 void CertificateLineEdit::setGroup(const KeyGroup &group)
 {
     d->setGroup(group);
 }
 
 bool CertificateLineEdit::isEmpty() const
 {
     return d->mStatus == Private::Status::Empty;
 }
 
+bool CertificateLineEdit::hasAcceptableInput() const
+{
+    return d->mStatus == Private::Status::Empty
+        || d->mStatus == Private::Status::Success;
+}
+
 void CertificateLineEdit::Private::setKeyFilter(const std::shared_ptr<KeyFilter> &filter)
 {
     mFilter = filter;
     mFilterModel->setKeyFilter(filter);
     mCompleterFilterModel->setKeyFilter(mFilter);
     updateKey();
 }
 
 void CertificateLineEdit::setKeyFilter(const std::shared_ptr<KeyFilter> &filter)
 {
     d->setKeyFilter(filter);
 }
 
 void CertificateLineEdit::setAccessibleNameOfLineEdit(const QString &name)
 {
     d->ui.lineEdit.setAccessibleName(name);
 }
 
 #include "certificatelineedit.moc"
diff --git a/src/crypto/gui/certificatelineedit.h b/src/crypto/gui/certificatelineedit.h
index 611c20fb6..4d12c5b76 100644
--- a/src/crypto/gui/certificatelineedit.h
+++ b/src/crypto/gui/certificatelineedit.h
@@ -1,94 +1,97 @@
 /*  crypto/gui/certificatelineedit.h
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
     SPDX-FileCopyrightText: 2021, 2022 g10 Code GmbH
     SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #pragma once
 
 #include <QWidget>
 
 #include <memory>
 
 namespace GpgME
 {
 class Key;
 }
 
 namespace Kleo
 {
 class AbstractKeyListModel;
 class KeyFilter;
 class KeyGroup;
 
 /** Line edit and completion based Certificate Selection Widget.
  *
  * Shows the status of the selection with a status label and icon.
  *
  * The widget will use a single line HBox Layout. For larger dialog
  * see certificateslectiondialog.
  */
 class CertificateLineEdit: public QWidget
 {
     Q_OBJECT
 public:
     /** Create the certificate selection line.
      *
      * If parent is not NULL the model is not taken
      * over but the parent argument used as the parent of the model.
      *
      * @param model: The keylistmodel to use.
      * @param parent: The usual widget parent.
      * @param filter: The filters to use. See certificateselectiondialog.
      */
     explicit CertificateLineEdit(AbstractKeyListModel *model,
                                  KeyFilter *filter = nullptr,
                                  QWidget *parent = nullptr);
 
     ~CertificateLineEdit() override;
 
     /** Get the selected key */
     GpgME::Key key() const;
 
     KeyGroup group() const;
 
     /** The current text */
     QString text() const;
 
     /** Check if the text is empty */
     bool isEmpty() const;
 
+    /** Returns true if the field is empty or if a key or group is selected. */
+    bool hasAcceptableInput() const;
+
     /** Set the preselected Key for this widget. */
     void setKey(const GpgME::Key &key);
 
     /** Set the preselected group for this widget. */
     void setGroup(const KeyGroup &group);
 
     /** Set the used keyfilter. */
     void setKeyFilter(const std::shared_ptr<KeyFilter> &filter);
 
     void setAccessibleNameOfLineEdit(const QString &name);
 
 Q_SIGNALS:
     /** Emitted when the selected key changed. */
     void keyChanged();
 
     /** Emitted when the entry is empty and editing is finished. */
     void wantsRemoval(CertificateLineEdit *w);
 
     /** Emitted when the entry is no longer empty. */
     void editingStarted();
 
     /** Emitted when the certificate selection dialog is requested. */
     void certificateSelectionRequested();
 
 private:
     class Private;
     std::unique_ptr<Private> const d;
 };
 
 }
diff --git a/src/crypto/gui/signencryptfileswizard.cpp b/src/crypto/gui/signencryptfileswizard.cpp
index 13aebfdc7..b9a6305b1 100644
--- a/src/crypto/gui/signencryptfileswizard.cpp
+++ b/src/crypto/gui/signencryptfileswizard.cpp
@@ -1,671 +1,671 @@
 /*  crypto/gui/signencryptfileswizard.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2009 Klarälvdalens Datakonsult AB
 
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-kleopatra.h>
 
 #include "signencryptfileswizard.h"
 #include "signencryptwidget.h"
 
 #include "newresultpage.h"
 
 #include <fileoperationspreferences.h>
 #include <settings.h>
 
 #include <KLocalizedString>
 #include <KSharedConfig>
 #include <KColorScheme>
 #include <KConfigGroup>
 #include <KWindowConfig>
 #include <KMessageBox>
 #include <KMessageWidget>
 
 #include "kleopatra_debug.h"
 #include <Libkleo/GnuPG>
 #include <Libkleo/Formatting>
 
 #include <Libkleo/FileNameRequester>
 #include <QWindow>
 #include <QVBoxLayout>
 #include <QWizardPage>
 #include <QGroupBox>
 #include <QLabel>
 #include <QIcon>
 #include <QCheckBox>
 #include <QStyle>
 
 #include <gpgme++/key.h>
 
 
 using namespace GpgME;
 using namespace Kleo;
 using namespace Kleo::Crypto::Gui;
 
 enum Page {
     SigEncPageId,
     ResultPageId,
 
     NumPages
 };
 
 class FileNameRequesterWithIcon : public QWidget
 {
     Q_OBJECT
 
 public:
     explicit FileNameRequesterWithIcon(QDir::Filters filter, QWidget *parent = nullptr)
         : QWidget(parent)
     {
         auto layout = new QHBoxLayout{this};
         layout->setContentsMargins(0, 0, 0, 0);
         mIconLabel = new QLabel{this};
         mRequester = new FileNameRequester{filter, this};
         mRequester->setExistingOnly(false);
         layout->addWidget(mIconLabel);
         layout->addWidget(mRequester);
 
         setFocusPolicy(mRequester->focusPolicy());
         setFocusProxy(mRequester);
 
         connect(mRequester, &FileNameRequester::fileNameChanged,
                 this, &FileNameRequesterWithIcon::fileNameChanged);
     }
 
     void setIcon(const QIcon &icon)
     {
         mIconLabel->setPixmap(icon.pixmap(32, 32));
     }
 
     void setFileName(const QString &name)
     {
         mRequester->setFileName(name);
     }
 
     QString fileName() const
     {
         return mRequester->fileName();
     }
 
     void setNameFilter(const QString &nameFilter)
     {
         mRequester->setNameFilter(nameFilter);
     }
 
     QString nameFilter() const
     {
         return mRequester->nameFilter();
     }
 
     FileNameRequester *requester()
     {
         return mRequester;
     }
 
 Q_SIGNALS:
     void fileNameChanged(const QString &filename);
 
 protected:
     bool event(QEvent *e) override
     {
         if (e->type() == QEvent::ToolTipChange) {
             mRequester->setToolTip(toolTip());
         }
         return QWidget::event(e);
     }
 
 private:
     QLabel *mIconLabel;
     FileNameRequester *mRequester;
 };
 
 class SigEncPage: public QWizardPage
 {
     Q_OBJECT
 
 public:
     explicit SigEncPage(QWidget *parent = nullptr)
         : QWizardPage(parent),
           mParent((SignEncryptFilesWizard *) parent),
           mWidget(new SignEncryptWidget),
           mOutLayout(new QVBoxLayout),
           mOutputLabel{nullptr},
           mArchive(false),
           mUseOutputDir(false),
           mSingleFile{true}
     {
         setTitle(i18nc("@title", "Sign / Encrypt Files"));
         auto vLay = new QVBoxLayout(this);
         vLay->setContentsMargins(0, 0, 0, 0);
         if (!Settings{}.cmsEnabled()) {
             mWidget->setProtocol(GpgME::OpenPGP);
         }
         mWidget->setSignAsText(i18nc("@option:check on SignEncryptPage",
                                      "&Sign as:"));
         mWidget->setEncryptForMeText(i18nc("@option:check on SignEncryptPage",
                                            "Encrypt for &me:"));
         mWidget->setEncryptForOthersText(i18nc("@option:check on SignEncryptPage",
                                                "Encrypt for &others:"));
         mWidget->setEncryptWithPasswordText(i18nc("@option:check on SignEncryptPage",
                                                   "Encrypt with &password. Anyone you share the password with can read the data."));
         vLay->addWidget(mWidget);
         connect(mWidget, &SignEncryptWidget::operationChanged, this,
                 &SigEncPage::updateCommitButton);
         connect(mWidget, &SignEncryptWidget::keysChanged, this,
                 &SigEncPage::updateFileWidgets);
 
         auto outputGrp = new QGroupBox(i18nc("@title:group", "Output"));
         outputGrp->setLayout(mOutLayout);
 
         mPlaceholderWidget = new QLabel(i18n("Please select an action."));
         mOutLayout->addWidget(mPlaceholderWidget);
 
         mOutputLabel = new QLabel(i18nc("@label on SignEncryptPage", "Output &files/folder:"));
         mOutLayout->addWidget(mOutputLabel);
 
         createRequesters(mOutLayout);
 
         mUseOutputDirChk = new QCheckBox(i18nc("@option:check on SignEncryptPage",
                                                "Encrypt / Sign &each file separately."));
         mUseOutputDirChk->setToolTip(i18nc("@info:tooltip",
                                            "Keep each file separate instead of creating an archive for all."));
         mOutLayout->addWidget(mUseOutputDirChk);
         connect (mUseOutputDirChk, &QCheckBox::toggled, this, [this] (bool state) {
                     mUseOutputDir = state;
                     mArchive = !mUseOutputDir && !mSingleFile;
                     updateFileWidgets();
                 });
 
         vLay->addWidget(outputGrp);
 
         auto messageWidget = new KMessageWidget;
         messageWidget->setMessageType(KMessageWidget::Error);
         messageWidget->setIcon(style()->standardIcon(QStyle::SP_MessageBoxCritical, nullptr, this));
         messageWidget->setText(i18n("Signing and encrypting files is not possible."));
         messageWidget->setToolTip(xi18nc("@info %1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                                          "<para>You cannot use <application>Kleopatra</application> for signing or encrypting files "
                                          "because the <application>GnuPG</application> system used by <application>Kleopatra</application> is not %1.</para>",
                                          Formatting::deVsString()));
         messageWidget->setCloseButtonVisible(false);
         messageWidget->setVisible(Kleo::gnupgUsesDeVsCompliance() && !Kleo::gnupgIsDeVsCompliant());
         vLay->addWidget(messageWidget);
 
         setMinimumHeight(300);
     }
 
     void setEncryptionPreset(bool value)
     {
         mWidget->setEncryptionChecked(value);
     }
 
     void setSigningPreset(bool value)
     {
         mWidget->setSigningChecked(value);
     }
 
     bool isComplete() const override
     {
         if (Kleo::gnupgUsesDeVsCompliance() && !Kleo::gnupgIsDeVsCompliant()) {
             return false;
         }
-        return !mWidget->currentOp().isNull();
+        return mWidget->isComplete();
     }
 
     int nextId() const override
     {
         return ResultPageId;
     }
 
     void initializePage() override
     {
         setCommitPage(true);
         updateCommitButton(mWidget->currentOp());
     }
 
     void setArchiveForced(bool archive)
     {
         mArchive = archive;
         setArchiveMutable(!archive);
     }
 
     void setArchiveMutable(bool archive)
     {
         mUseOutputDirChk->setVisible(archive);
         if (archive) {
             const KConfigGroup archCfg(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
             mUseOutputDirChk->setChecked(archCfg.readEntry("LastUseOutputDir", false));
         } else {
             mUseOutputDirChk->setChecked(false);
         }
     }
 
     void setSingleFile(bool singleFile)
     {
         mSingleFile = singleFile;
         mArchive = !mUseOutputDir && !mSingleFile;
     }
 
     bool validatePage() override
     {
         if (Kleo::gnupgUsesDeVsCompliance() && !Kleo::gnupgIsDeVsCompliant()) {
             KMessageBox::sorry(topLevelWidget(),
                                xi18nc("@info %1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                                       "<para>Sorry! You cannot use <application>Kleopatra</application> for signing or encrypting files "
                                       "because the <application>GnuPG</application> system used by <application>Kleopatra</application> is not %1.</para>",
                                       Formatting::deVsString()));
             return false;
         }
         bool sign = !mWidget->signKey().isNull();
         bool encrypt = !mWidget->selfKey().isNull() || !mWidget->recipients().empty();
         if (!mWidget->validate()) {
             return false;
         }
         mWidget->saveOwnKeys();
         if (mUseOutputDirChk->isVisible()) {
             KConfigGroup archCfg(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
             archCfg.writeEntry("LastUseOutputDir", mUseOutputDir);
         }
 
         if (sign && !encrypt && mArchive) {
             return KMessageBox::warningContinueCancel(this,
             xi18nc("@info",
             "<para>Archiving in combination with sign-only currently requires what are known as opaque signatures - "
             "unlike detached ones, these embed the content in the signature.</para>"
             "<para>This format is rather unusual. You might want to archive the files separately, "
             "and then sign the archive as one file with Kleopatra.</para>"
             "<para>Future versions of Kleopatra are expected to also support detached signatures in this case.</para>"),
             i18nc("@title:window", "Unusual Signature Warning"),
             KStandardGuiItem::cont(), KStandardGuiItem::cancel(),
             QStringLiteral("signencryptfileswizard-archive+sign-only-warning"))
             == KMessageBox::Continue;
         } else if (sign && !encrypt) {
             return true;
         }
 
         if (!mWidget->selfKey().isNull() || mWidget->encryptSymmetric()) {
             return true;
         }
         const auto recipientKeys = recipients();
         const bool hasSecret = std::any_of(std::begin(recipientKeys), std::end(recipientKeys),
                                            [](const auto &k) { return k.hasSecret(); });
         if (!hasSecret) {
             if (KMessageBox::warningContinueCancel(this,
             xi18nc("@info",
             "<para>None of the recipients you are encrypting to seems to be your own.</para>"
             "<para>This means that you will not be able to decrypt the data anymore, once encrypted.</para>"
             "<para>Do you want to continue, or cancel to change the recipient selection?</para>"),
             i18nc("@title:window", "Encrypt-To-Self Warning"),
             KStandardGuiItem::cont(),
             KStandardGuiItem::cancel(),
             QStringLiteral("warn-encrypt-to-non-self"), KMessageBox::Notify | KMessageBox::Dangerous)
             == KMessageBox::Cancel) {
                 return false;
             }
         }
         return true;
     }
 
     std::vector<Key> recipients() const
     {
         return mWidget->recipients();
     }
 
     /* In the future we might find a usecase for multiple
      * signers */
     std::vector<Key> signers() const
     {
         const Key k = mWidget->signKey();
         if (!k.isNull()) {
             return {k};
         }
         return {};
     }
 
 private:
     void createRequesters(QBoxLayout *lay) {
         static const QMap<int, QString> icons = {
             { SignEncryptFilesWizard::SignatureCMS, QStringLiteral("document-sign") },
             { SignEncryptFilesWizard::SignaturePGP, QStringLiteral("document-sign") },
             { SignEncryptFilesWizard::CombinedPGP,  QStringLiteral("document-edit-sign-encrypt") },
             { SignEncryptFilesWizard::EncryptedPGP, QStringLiteral("document-encrypt") },
             { SignEncryptFilesWizard::EncryptedCMS, QStringLiteral("document-encrypt") },
             { SignEncryptFilesWizard::Directory,    QStringLiteral("folder") }
         };
         static const QMap<int, QString> toolTips = {
             { SignEncryptFilesWizard::SignatureCMS, i18n("This is the filename of the S/MIME signature.") },
             { SignEncryptFilesWizard::SignaturePGP, i18n("This is the filename of the detached OpenPGP signature.") },
             { SignEncryptFilesWizard::CombinedPGP,  i18n("This is the filename of the OpenPGP-signed and encrypted file.") },
             { SignEncryptFilesWizard::EncryptedPGP, i18n("This is the filename of the OpenPGP encrypted file.") },
             { SignEncryptFilesWizard::EncryptedCMS, i18n("This is the filename of the S/MIME encrypted file.") },
             { SignEncryptFilesWizard::Directory,    i18n("The resulting files are written to this directory.") }
         };
         static const QMap<int, QString> accessibleNames = {
             { SignEncryptFilesWizard::SignatureCMS, i18n("S/MIME signature file") },
             { SignEncryptFilesWizard::SignaturePGP, i18n("OpenPGP signature file") },
             { SignEncryptFilesWizard::CombinedPGP,  i18n("OpenPGP signed and encrypted file") },
             { SignEncryptFilesWizard::EncryptedPGP, i18n("OpenPGP encrypted file") },
             { SignEncryptFilesWizard::EncryptedCMS, i18n("S/MIME encrypted file") },
             { SignEncryptFilesWizard::Directory,    i18n("Output directory") }
         };
         static const QMap<int, QString> nameFiltersBinary = {
             { SignEncryptFilesWizard::SignatureCMS, i18n("S/MIME Signatures (*.p7s)") },
             { SignEncryptFilesWizard::SignaturePGP, i18n("OpenPGP Signatures (*.sig *.pgp)") },
             { SignEncryptFilesWizard::CombinedPGP,  i18n("OpenPGP Files (*.gpg *.pgp)") },
             { SignEncryptFilesWizard::EncryptedPGP, i18n("OpenPGP Files (*.gpg *.pgp)") },
             { SignEncryptFilesWizard::EncryptedCMS, i18n("S/MIME Files (*.p7m)") },
             { SignEncryptFilesWizard::Directory,    {} }
         };
         static const QMap<int, QString> nameFiltersAscii = {
             { SignEncryptFilesWizard::SignatureCMS, i18n("S/MIME Signatures (*.p7s *.pem)") },
             { SignEncryptFilesWizard::SignaturePGP, i18n("OpenPGP Signatures (*.asc *.sig)") },
             { SignEncryptFilesWizard::CombinedPGP,  i18n("OpenPGP Files (*.asc)") },
             { SignEncryptFilesWizard::EncryptedPGP, i18n("OpenPGP Files (*.asc)") },
             { SignEncryptFilesWizard::EncryptedCMS, i18n("S/MIME Files (*.p7m *.pem)") },
             { SignEncryptFilesWizard::Directory,    {} }
         };
 
         if (!mRequesters.empty()) {
             return;
         }
         const auto &nameFilters = FileOperationsPreferences().addASCIIArmor() ? nameFiltersAscii : nameFiltersBinary;
         for (auto kind : icons.keys()) {
             auto requesterWithIcon = new FileNameRequesterWithIcon{
                 kind == SignEncryptFilesWizard::Directory ? QDir::Dirs : QDir::Files, this};
             requesterWithIcon->setIcon(QIcon::fromTheme(icons[kind]));
             requesterWithIcon->setToolTip(toolTips[kind]);
             requesterWithIcon->requester()->setAccessibleNameOfLineEdit(accessibleNames[kind]);
             requesterWithIcon->setNameFilter(nameFilters[kind]);
             lay->addWidget(requesterWithIcon);
 
             connect(requesterWithIcon, &FileNameRequesterWithIcon::fileNameChanged, this,
                     [this, kind](const QString &newName) {
                         mOutNames[kind] = newName;
                     });
 
             mRequesters.insert(kind, requesterWithIcon);
         }
     }
 
 public:
     void setOutputNames(const QMap<int, QString> &names) {
         Q_ASSERT(mOutNames.isEmpty());
         for (auto it = std::begin(names); it != std::end(names); ++it) {
             mRequesters.value(it.key())->setFileName(it.value());
         }
         mOutNames = names;
         updateFileWidgets();
     }
 
     QMap <int, QString> outputNames() const {
         if (!mUseOutputDir) {
             auto ret = mOutNames;
             ret.remove(SignEncryptFilesWizard::Directory);
             return ret;
         }
         return mOutNames;
     }
 
     bool encryptSymmetric() const
     {
         return mWidget->encryptSymmetric();
     }
 
 private Q_SLOTS:
     void updateCommitButton(const QString &label)
     {
         if (mParent->currentPage() != this) {
             return;
         }
         auto btn = mParent->button(QWizard::CommitButton);
         if (!label.isEmpty()) {
             mParent->setButtonText(QWizard::CommitButton, label);
             if (Kleo::gnupgUsesDeVsCompliance()) {
                 const bool de_vs = Kleo::gnupgIsDeVsCompliant() && mWidget->isDeVsAndValid();
                 btn->setIcon(QIcon::fromTheme(de_vs
                                              ? QStringLiteral("security-high")
                                              : QStringLiteral("security-medium")));
                 btn->setStyleSheet(QStringLiteral("QPushButton { background-color: %1; }").arg(de_vs
                                    ? KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::PositiveBackground).color().name()
                                    : KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::NegativeBackground).color().name()));
                 mParent->setLabelText(de_vs
                         ? i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                             "%1 communication possible.", Formatting::deVsString())
                         : i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                             "%1 communication not possible.", Formatting::deVsString()));
             }
         } else {
             mParent->setButtonText(QWizard::CommitButton, i18n("Next"));
             btn->setIcon(QIcon());
             btn->setStyleSheet(QString());
         }
         Q_EMIT completeChanged();
     }
 
     void updateFileWidgets()
     {
         if (mRequesters.isEmpty()) {
             return;
         }
         const std::vector<Key> recipients = mWidget->recipients();
         const Key sigKey = mWidget->signKey();
         const bool pgp = mWidget->encryptSymmetric() ||
                          std::any_of(std::cbegin(recipients), std::cend(recipients),
                                      [](const auto &k) { return k.protocol() == Protocol::OpenPGP; });
         const bool cms = std::any_of(std::cbegin(recipients), std::cend(recipients),
                                      [](const auto &k) { return k.protocol() == Protocol::CMS; });
 
         mOutLayout->setEnabled(false);
         if (cms || pgp || !sigKey.isNull()) {
             mPlaceholderWidget->setVisible(false);
             mOutputLabel->setVisible(true);
             mRequesters[SignEncryptFilesWizard::SignatureCMS]->setVisible(!mUseOutputDir && sigKey.protocol() == Protocol::CMS);
             mRequesters[SignEncryptFilesWizard::EncryptedCMS]->setVisible(!mUseOutputDir && cms);
             mRequesters[SignEncryptFilesWizard::CombinedPGP]->setVisible(!mUseOutputDir && sigKey.protocol() == Protocol::OpenPGP && pgp);
             mRequesters[SignEncryptFilesWizard::EncryptedPGP]->setVisible(!mUseOutputDir && sigKey.protocol() != Protocol::OpenPGP && pgp);
             mRequesters[SignEncryptFilesWizard::SignaturePGP]->setVisible(!mUseOutputDir && sigKey.protocol() == Protocol::OpenPGP && !pgp);
             mRequesters[SignEncryptFilesWizard::Directory]->setVisible(mUseOutputDir);
             auto firstNotHidden = std::find_if(std::cbegin(mRequesters), std::cend(mRequesters),
                                                [](auto w) { return !w->isHidden(); });
             mOutputLabel->setBuddy(*firstNotHidden);
         } else {
             mPlaceholderWidget->setVisible(true);
             mOutputLabel->setVisible(false);
             std::for_each(std::cbegin(mRequesters), std::cend(mRequesters),
                           [](auto w) { w->setVisible(false); });
             mOutputLabel->setBuddy(nullptr);
         }
         mOutLayout->setEnabled(true);
     }
 
 private:
     SignEncryptFilesWizard *mParent;
     SignEncryptWidget *mWidget;
     QMap <int, QString> mOutNames;
     QMap <int, FileNameRequesterWithIcon *> mRequesters;
     QVBoxLayout *mOutLayout;
     QWidget *mPlaceholderWidget;
     QCheckBox *mUseOutputDirChk;
     QLabel *mOutputLabel;
     bool mArchive;
     bool mUseOutputDir;
     bool mSingleFile;
 };
 
 class ResultPage : public NewResultPage
 {
     Q_OBJECT
 
 public:
     explicit ResultPage(QWidget *parent = nullptr)
         : NewResultPage(parent),
           mParent((SignEncryptFilesWizard *) parent)
     {
         setTitle(i18nc("@title", "Results"));
         setSubTitle(i18nc("@title",
                           "Status and progress of the crypto operations is shown here."));
     }
 
     void initializePage() override
     {
         mParent->setLabelText(QString());
     }
 
 private:
     SignEncryptFilesWizard *mParent;
 };
 
 SignEncryptFilesWizard::SignEncryptFilesWizard(QWidget *parent, Qt::WindowFlags f)
     : QWizard(parent, f)
 {
     readConfig();
 
     const bool de_vs = Kleo::gnupgUsesDeVsCompliance();
 #ifdef Q_OS_WIN
     // Enforce modern style to avoid vista style ugliness.
     setWizardStyle(QWizard::ModernStyle);
 #endif
     mSigEncPage = new SigEncPage(this);
     mResultPage = new ResultPage(this);
 
     connect(this, &QWizard::currentIdChanged, this,
             &SignEncryptFilesWizard::slotCurrentIdChanged);
     setPage(SigEncPageId, mSigEncPage);
     setPage(ResultPageId, mResultPage);
     setOptions(QWizard::IndependentPages |
                (de_vs ? QWizard::HaveCustomButton1 : QWizard::WizardOption(0)) |
                QWizard::NoBackButtonOnLastPage |
                QWizard::NoBackButtonOnStartPage);
 
     if (de_vs) {
         /* We use a custom button to display a label next to the
            buttons.  */
         auto btn = button(QWizard::CustomButton1);
         /* We style the button so that it looks and acts like a
            label.  */
         btn->setStyleSheet(QStringLiteral("border: none"));
         btn->setFocusPolicy(Qt::NoFocus);
     }
 }
 
 void SignEncryptFilesWizard::setLabelText(const QString &label)
 {
     button(QWizard::CommitButton)->setToolTip(label);
     setButtonText(QWizard::CustomButton1, label);
 }
 
 void SignEncryptFilesWizard::slotCurrentIdChanged(int id)
 {
     if (id == ResultPageId) {
         Q_EMIT operationPrepared();
     }
 }
 
 SignEncryptFilesWizard::~SignEncryptFilesWizard()
 {
     qCDebug(KLEOPATRA_LOG);
     writeConfig();
 }
 
 void SignEncryptFilesWizard::setSigningPreset(bool preset)
 {
     mSigEncPage->setSigningPreset(preset);
 }
 
 void SignEncryptFilesWizard::setSigningUserMutable(bool mut)
 {
     if (mut == mSigningUserMutable) {
         return;
     }
     mSigningUserMutable = mut;
 }
 
 void SignEncryptFilesWizard::setEncryptionPreset(bool preset)
 {
     mSigEncPage->setEncryptionPreset(preset);
 }
 
 void SignEncryptFilesWizard::setEncryptionUserMutable(bool mut)
 {
     if (mut == mEncryptionUserMutable) {
         return;
     }
     mEncryptionUserMutable = mut;
 }
 
 void SignEncryptFilesWizard::setArchiveForced(bool archive)
 {
     mSigEncPage->setArchiveForced(archive);
 }
 
 void SignEncryptFilesWizard::setArchiveMutable(bool archive)
 {
     mSigEncPage->setArchiveMutable(archive);
 }
 
 void SignEncryptFilesWizard::setSingleFile(bool singleFile)
 {
     mSigEncPage->setSingleFile(singleFile);
 }
 
 std::vector<Key> SignEncryptFilesWizard::resolvedRecipients() const
 {
     return mSigEncPage->recipients();
 }
 
 std::vector<Key> SignEncryptFilesWizard::resolvedSigners() const
 {
     return mSigEncPage->signers();
 }
 
 void SignEncryptFilesWizard::setTaskCollection(const std::shared_ptr<Kleo::Crypto::TaskCollection> &coll)
 {
     mResultPage->setTaskCollection(coll);
 }
 
 void SignEncryptFilesWizard::setOutputNames(const QMap<int, QString> &map) const
 {
     mSigEncPage->setOutputNames(map);
 }
 
 QMap<int, QString> SignEncryptFilesWizard::outputNames() const
 {
     return mSigEncPage->outputNames();
 }
 
 bool SignEncryptFilesWizard::encryptSymmetric() const
 {
     return mSigEncPage->encryptSymmetric();
 }
 
 void SignEncryptFilesWizard::readConfig()
 {
     winId(); // ensure there's a window created
 
     // set default window size
     windowHandle()->resize(640, 480);
 
     // restore size from config file
     KConfigGroup cfgGroup(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
     KWindowConfig::restoreWindowSize(windowHandle(), cfgGroup);
 
     // NOTICE: QWindow::setGeometry() does NOT impact the backing QWidget geometry even if the platform
     // window was created -> QTBUG-40584. We therefore copy the size here.
     // TODO: remove once this was resolved in QWidget QPA
     resize(windowHandle()->size());
 }
 
 void SignEncryptFilesWizard::writeConfig()
 {
     KConfigGroup cfgGroup(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
     KWindowConfig::saveWindowSize(windowHandle(), cfgGroup);
     cfgGroup.sync();
 }
 
 
 #include "signencryptfileswizard.moc"
diff --git a/src/crypto/gui/signencryptwidget.cpp b/src/crypto/gui/signencryptwidget.cpp
index 968103b58..648deedb6 100644
--- a/src/crypto/gui/signencryptwidget.cpp
+++ b/src/crypto/gui/signencryptwidget.cpp
@@ -1,668 +1,675 @@
 /*  crypto/gui/signencryptwidget.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "signencryptwidget.h"
 
 #include "kleopatra_debug.h"
 
 #include "certificatelineedit.h"
 #include "fileoperationspreferences.h"
 #include "kleopatraapplication.h"
 #include "settings.h"
 #include "unknownrecipientwidget.h"
 
 #include "dialogs/certificateselectiondialog.h"
 
 #include <QVBoxLayout>
 #include <QHBoxLayout>
 #include <QGroupBox>
 #include <QCheckBox>
 #include <QScrollArea>
 #include <QScrollBar>
 
 #include <Libkleo/DefaultKeyFilter>
 #include <Libkleo/KeyCache>
 #include <Libkleo/KeyGroup>
 #include <Libkleo/KeyListModel>
 #include <Libkleo/KeySelectionCombo>
 #include <Libkleo/KeyListSortFilterProxyModel>
 
 #include <Libkleo/GnuPG>
 
 #include <KLocalizedString>
 #include <KConfigGroup>
 #include <KSharedConfig>
 #include <KMessageBox>
 
 using namespace Kleo;
 using namespace Kleo::Dialogs;
 using namespace GpgME;
 
 namespace {
 class SignCertificateFilter: public DefaultKeyFilter
 {
 public:
     SignCertificateFilter(GpgME::Protocol proto) : DefaultKeyFilter()
     {
         setRevoked(DefaultKeyFilter::NotSet);
         setExpired(DefaultKeyFilter::NotSet);
         setHasSecret(DefaultKeyFilter::Set);
         setCanSign(DefaultKeyFilter::Set);
 
         if (proto == GpgME::OpenPGP) {
             setIsOpenPGP(DefaultKeyFilter::Set);
         } else if (proto == GpgME::CMS) {
             setIsOpenPGP(DefaultKeyFilter::NotSet);
         }
     }
 };
 class EncryptCertificateFilter: public DefaultKeyFilter
 {
 public:
     EncryptCertificateFilter(GpgME::Protocol proto): DefaultKeyFilter()
     {
         setRevoked(DefaultKeyFilter::NotSet);
         setExpired(DefaultKeyFilter::NotSet);
         setCanEncrypt(DefaultKeyFilter::Set);
 
         if (proto == GpgME::OpenPGP) {
             setIsOpenPGP(DefaultKeyFilter::Set);
         } else if (proto == GpgME::CMS) {
             setIsOpenPGP(DefaultKeyFilter::NotSet);
         }
     }
 };
 class EncryptSelfCertificateFilter: public EncryptCertificateFilter
 {
 public:
     EncryptSelfCertificateFilter(GpgME::Protocol proto): EncryptCertificateFilter(proto)
     {
         setRevoked(DefaultKeyFilter::NotSet);
         setExpired(DefaultKeyFilter::NotSet);
         setCanEncrypt(DefaultKeyFilter::Set);
         setHasSecret(DefaultKeyFilter::Set);
     }
 };
 }
 
 SignEncryptWidget::SignEncryptWidget(QWidget *parent, bool sigEncExclusive)
     : QWidget(parent),
       mModel(AbstractKeyListModel::createFlatKeyListModel(this)),
       mIsExclusive(sigEncExclusive)
 {
     auto lay = new QVBoxLayout(this);
     lay->setContentsMargins(0, 0, 0, 0);
 
     mModel->useKeyCache(true, KeyList::IncludeGroups);
 
     const bool haveSecretKeys = !KeyCache::instance()->secretKeys().empty();
     const bool havePublicKeys = !KeyCache::instance()->keys().empty();
     const bool symmetricOnly = FileOperationsPreferences().symmetricEncryptionOnly();
 
     /* The signature selection */
     auto sigLay = new QHBoxLayout;
     auto sigGrp = new QGroupBox(i18nc("@title:group", "Prove authenticity (sign)"));
     mSigChk = new QCheckBox(i18n("Sign as:"));
     mSigChk->setEnabled(haveSecretKeys);
     mSigChk->setChecked(haveSecretKeys);
 
     mSigSelect = new KeySelectionCombo();
     mSigSelect->setEnabled(mSigChk->isChecked());
 
     sigLay->addWidget(mSigChk);
     sigLay->addWidget(mSigSelect, 1);
     sigGrp->setLayout(sigLay);
     lay->addWidget(sigGrp);
 
     connect(mSigChk, &QCheckBox::toggled, mSigSelect, &QWidget::setEnabled);
     connect(mSigChk, &QCheckBox::toggled, this, &SignEncryptWidget::updateOp);
     connect(mSigSelect, &KeySelectionCombo::currentKeyChanged,
             this, &SignEncryptWidget::updateOp);
 
     // Recipient selection
     auto encBoxLay = new QVBoxLayout;
     auto encBox = new QGroupBox(i18nc("@title:group", "Encrypt"));
     encBox->setLayout(encBoxLay);
     auto recipientGrid = new QGridLayout;
 
     // Own key
     mEncSelfChk = new QCheckBox(i18n("Encrypt for me:"));
     mEncSelfChk->setEnabled(haveSecretKeys && !symmetricOnly);
     mEncSelfChk->setChecked(haveSecretKeys && !symmetricOnly);
     mSelfSelect = new KeySelectionCombo();
     mSelfSelect->setEnabled(mEncSelfChk->isChecked());
     recipientGrid->addWidget(mEncSelfChk, 0, 0);
     recipientGrid->addWidget(mSelfSelect, 0, 1);
 
     // Checkbox for other keys
     mEncOtherChk = new QCheckBox(i18n("Encrypt for others:"));
     mEncOtherChk->setEnabled(havePublicKeys && !symmetricOnly);
     mEncOtherChk->setChecked(havePublicKeys && !symmetricOnly);
     recipientGrid->addWidget(mEncOtherChk, 1, 0, Qt::AlignTop);
     connect(mEncOtherChk, &QCheckBox::toggled, this,
         [this](bool toggled) {
             for (CertificateLineEdit *edit : std::as_const(mRecpWidgets)) {
                 edit->setEnabled(toggled);
             }
             updateOp();
         });
     mRecpLayout = new QVBoxLayout;
     recipientGrid->addLayout(mRecpLayout, 1, 1);
     recipientGrid->setRowStretch(2, 1);
 
     // Scroll area for other keys
     auto recipientWidget = new QWidget;
     auto recipientScroll = new QScrollArea;
     recipientWidget->setLayout(recipientGrid);
     recipientScroll->setWidget(recipientWidget);
     recipientScroll->setWidgetResizable(true);
     recipientScroll->setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContentsOnFirstShow);
     recipientScroll->setFrameStyle(QFrame::NoFrame);
     recipientScroll->setFocusPolicy(Qt::NoFocus);
     recipientGrid->setContentsMargins(0, 0, 0, 0);
     encBoxLay->addWidget(recipientScroll, 1);
 
     auto bar = recipientScroll->verticalScrollBar();
     connect (bar, &QScrollBar::rangeChanged, this, [bar] (int, int max) {
             bar->setValue(max);
         });
 
     addRecipientWidget();
 
     // Checkbox for password
     mSymmetric = new QCheckBox(i18n("Encrypt with password. Anyone you share the password with can read the data."));
     mSymmetric->setToolTip(i18nc("Tooltip information for symmetric encryption",
                                  "Additionally to the keys of the recipients you can encrypt your data with a password. "
                                  "Anyone who has the password can read the data without any secret key. "
                                  "Using a password is <b>less secure</b> then public key cryptography. Even if you pick a very strong password."));
     mSymmetric->setChecked(symmetricOnly || !havePublicKeys);
     encBoxLay->addWidget(mSymmetric);
 
     // Connect it
     connect(mEncSelfChk, &QCheckBox::toggled, mSelfSelect, &QWidget::setEnabled);
     connect(mEncSelfChk, &QCheckBox::toggled, this, &SignEncryptWidget::updateOp);
     connect(mSymmetric, &QCheckBox::toggled, this, &SignEncryptWidget::updateOp);
     connect(mSelfSelect, &KeySelectionCombo::currentKeyChanged,
             this, &SignEncryptWidget::updateOp);
 
     if (mIsExclusive) {
         connect(mEncOtherChk, &QCheckBox::toggled, this, [this](bool value) {
             if (mCurrentProto != GpgME::CMS) {
                 return;
             }
             if (value) {
                 mSigChk->setChecked(false);
             }
         });
         connect(mEncSelfChk, &QCheckBox::toggled, this, [this](bool value) {
             if (mCurrentProto != GpgME::CMS) {
                 return;
             }
             if (value) {
                 mSigChk->setChecked(false);
             }
         });
         connect(mSigChk, &QCheckBox::toggled, this, [this](bool value) {
             if (mCurrentProto != GpgME::CMS) {
                 return;
             }
             if (value) {
                 mEncSelfChk->setChecked(false);
                 mEncOtherChk->setChecked(false);
             }
         });
     }
 
     // Ensure that the mSigChk is aligned togehter with the encryption check boxes.
     mSigChk->setMinimumWidth(qMax(mEncOtherChk->width(), mEncSelfChk->width()));
 
     lay->addWidget(encBox);
 
     connect(KeyCache::instance().get(), &Kleo::KeyCache::keysMayHaveChanged,
             this, &SignEncryptWidget::updateCheckBoxes);
     connect(KleopatraApplication::instance(), &KleopatraApplication::configurationChanged,
             this, &SignEncryptWidget::updateCheckBoxes);
 
     loadKeys();
     onProtocolChanged();
     updateOp();
 }
 
 void SignEncryptWidget::setSignAsText(const QString &text)
 {
     mSigChk->setText(text);
 }
 
 void SignEncryptWidget::setEncryptForMeText(const QString &text)
 {
     mEncSelfChk->setText(text);
 }
 
 void SignEncryptWidget::setEncryptForOthersText(const QString &text)
 {
     mEncOtherChk->setText(text);
 }
 
 void SignEncryptWidget::setEncryptWithPasswordText(const QString& text)
 {
     mSymmetric->setText(text);
 }
 
 CertificateLineEdit *SignEncryptWidget::addRecipientWidget()
 {
     auto certSel = new CertificateLineEdit(mModel,
                                            new EncryptCertificateFilter(mCurrentProto),
                                            this);
     certSel->setAccessibleNameOfLineEdit(i18nc("text for screen readers", "recipient key"));
     certSel->setEnabled(mEncOtherChk->isChecked());
     mRecpWidgets << certSel;
 
     if (mRecpLayout->count() > 0) {
         auto lastWidget = mRecpLayout->itemAt(mRecpLayout->count() - 1)->widget();
         setTabOrder(lastWidget, certSel);
     }
     mRecpLayout->addWidget(certSel);
 
     connect(certSel, &CertificateLineEdit::keyChanged,
             this, &SignEncryptWidget::recipientsChanged);
     connect(certSel, &CertificateLineEdit::wantsRemoval,
             this, &SignEncryptWidget::recpRemovalRequested);
     connect(certSel, &CertificateLineEdit::editingStarted,
             this, &SignEncryptWidget::recipientsChanged);
     connect(certSel, &CertificateLineEdit::certificateSelectionRequested,
             this, [this, certSel]() { certificateSelectionRequested(certSel); });
 
     return certSel;
 }
 
 void SignEncryptWidget::addRecipient(const Key &key)
 {
     CertificateLineEdit *certSel = addRecipientWidget();
     if (!key.isNull()) {
         certSel->setKey(key);
         mAddedKeys << key;
     }
 }
 
 void SignEncryptWidget::addRecipient(const KeyGroup &group)
 {
     CertificateLineEdit *certSel = addRecipientWidget();
     if (!group.isNull()) {
         certSel->setGroup(group);
         mAddedGroups << group;
     }
 }
 
 void SignEncryptWidget::certificateSelectionRequested(CertificateLineEdit *certificateLineEdit)
 {
     CertificateSelectionDialog dlg{this};
 
     dlg.setOptions(CertificateSelectionDialog::Options(
         CertificateSelectionDialog::MultiSelection |
         CertificateSelectionDialog::EncryptOnly |
         CertificateSelectionDialog::optionsFromProtocol(mCurrentProto) |
         CertificateSelectionDialog::IncludeGroups));
 
     if (!certificateLineEdit->key().isNull()) {
         const auto key = certificateLineEdit->key();
         const auto name = QString::fromUtf8(key.userID(0).name());
         const auto email = QString::fromUtf8(key.userID(0).email());
         dlg.setStringFilter(!name.isEmpty() ? name : email);
     } else if (!certificateLineEdit->group().isNull()) {
         dlg.setStringFilter(certificateLineEdit->group().name());
     } else {
         dlg.setStringFilter(certificateLineEdit->text());
     }
 
     if (dlg.exec()) {
         const std::vector<Key> keys = dlg.selectedCertificates();
         const std::vector<KeyGroup> groups = dlg.selectedGroups();
         if (keys.size() == 0 && groups.size() == 0) {
             return;
         }
         bool isFirstItem = true;
         for (const Key &key : keys) {
             if (isFirstItem) {
                 certificateLineEdit->setKey(key);
                 isFirstItem = false;
             } else {
                 addRecipient(key);
             }
         }
         for (const KeyGroup &group : groups) {
             if (isFirstItem) {
                 certificateLineEdit->setGroup(group);
                 isFirstItem = false;
             } else {
                 addRecipient(group);
             }
         }
     }
 
     recipientsChanged();
 }
 
 void SignEncryptWidget::clearAddedRecipients()
 {
     for (auto w: std::as_const(mUnknownWidgets)) {
         mRecpLayout->removeWidget(w);
         delete w;
     }
 
     for (auto &key: std::as_const(mAddedKeys)) {
         removeRecipient(key);
     }
 
     for (auto &group: std::as_const(mAddedGroups)) {
         removeRecipient(group);
     }
 }
 
 void SignEncryptWidget::addUnknownRecipient(const char *keyID)
 {
     auto unknownWidget = new UnknownRecipientWidget(keyID);
     mUnknownWidgets << unknownWidget;
 
     if (mRecpLayout->count() > 0) {
         auto lastWidget = mRecpLayout->itemAt(mRecpLayout->count() - 1)->widget();
         setTabOrder(lastWidget, unknownWidget);
     }
     mRecpLayout->addWidget(unknownWidget);
 
     connect(KeyCache::instance().get(), &Kleo::KeyCache::keysMayHaveChanged,
             this, [this] () {
         // Check if any unknown recipient can now be found.
         for (auto w: mUnknownWidgets) {
             auto key = KeyCache::instance()->findByKeyIDOrFingerprint(w->keyID().toLatin1().constData());
             if (key.isNull()) {
                 std::vector<std::string> subids;
                 subids.push_back(std::string(w->keyID().toLatin1().constData()));
                 for (const auto &subkey: KeyCache::instance()->findSubkeysByKeyID(subids)) {
                     key = subkey.parent();
                 }
             }
             if (key.isNull()) {
                 continue;
             }
             // Key is now available replace by line edit.
             qCDebug(KLEOPATRA_LOG) << "Removing widget for keyid: " << w->keyID();
             mRecpLayout->removeWidget(w);
             mUnknownWidgets.removeAll(w);
             delete w;
             addRecipient(key);
         }
     });
 }
 
 void SignEncryptWidget::recipientsChanged()
 {
     const bool hasEmptyRecpWidget =
         std::any_of(std::cbegin(mRecpWidgets), std::cend(mRecpWidgets),
                     [](auto w) { return w->isEmpty(); });
     if (!hasEmptyRecpWidget) {
         addRecipientWidget();
     }
     updateOp();
 }
 
 Key SignEncryptWidget::signKey() const
 {
     if (mSigSelect->isEnabled()) {
         return mSigSelect->currentKey();
     }
     return Key();
 }
 
 Key SignEncryptWidget::selfKey() const
 {
     if (mSelfSelect->isEnabled()) {
         return mSelfSelect->currentKey();
     }
     return Key();
 }
 
 std::vector<Key> SignEncryptWidget::recipients() const
 {
     std::vector<Key> ret;
     for (const CertificateLineEdit *w : std::as_const(mRecpWidgets)) {
         if (!w->isEnabled()) {
             // If one is disabled, all are disabled.
             break;
         }
         const Key k = w->key();
         const KeyGroup g = w->group();
         if (!k.isNull()) {
             ret.push_back(k);
         } else if (!g.isNull()) {
             const auto keys = g.keys();
             std::copy(keys.begin(), keys.end(), std::back_inserter(ret));
         }
     }
     const Key k = selfKey();
     if (!k.isNull()) {
         ret.push_back(k);
     }
     return ret;
 }
 
 bool SignEncryptWidget::isDeVsAndValid() const
 {
     if (!signKey().isNull()
         && (!IS_DE_VS(signKey()) || keyValidity(signKey()) < GpgME::UserID::Validity::Full)) {
         return false;
     }
 
     if (!selfKey().isNull()
         && (!IS_DE_VS(selfKey()) || keyValidity(selfKey()) < GpgME::UserID::Validity::Full)) {
         return false;
     }
 
     for (const auto &key: recipients()) {
         if (!IS_DE_VS(key) || keyValidity(key) < GpgME::UserID::Validity::Full) {
             return false;
         }
     }
 
     return true;
 }
 
 void SignEncryptWidget::updateOp()
 {
     const Key sigKey = signKey();
     const std::vector<Key> recp = recipients();
 
     QString newOp;
     if (!sigKey.isNull() && (!recp.empty() || encryptSymmetric())) {
         newOp = i18nc("@action", "Sign / Encrypt");
     } else if (!recp.empty() || encryptSymmetric()) {
         newOp = i18nc("@action", "Encrypt");
     } else if (!sigKey.isNull()) {
         newOp = i18nc("@action", "Sign");
     } else {
         newOp = QString();
     }
     mOp = newOp;
     Q_EMIT operationChanged(mOp);
     Q_EMIT keysChanged();
 }
 
 QString SignEncryptWidget::currentOp() const
 {
     return mOp;
 }
 
 void SignEncryptWidget::recpRemovalRequested(CertificateLineEdit *w)
 {
     if (!w) {
         return;
     }
     const int emptyEdits =
         std::count_if(std::cbegin(mRecpWidgets), std::cend(mRecpWidgets),
                       [](auto w) { return w->isEmpty(); });
     if (emptyEdits > 1) {
         if (w->hasFocus()) {
             const int index = mRecpLayout->indexOf(w);
             const auto focusWidget = (index < mRecpLayout->count() - 1) ?
                 mRecpLayout->itemAt(index + 1)->widget() :
                 mRecpLayout->itemAt(mRecpLayout->count() - 2)->widget();
             focusWidget->setFocus();
         }
         mRecpLayout->removeWidget(w);
         mRecpWidgets.removeAll(w);
         w->deleteLater();
     }
 }
 
 void SignEncryptWidget::removeRecipient(const GpgME::Key &key)
 {
     for (CertificateLineEdit *edit: std::as_const(mRecpWidgets)) {
         const auto editKey = edit->key();
         if (key.isNull() && editKey.isNull()) {
             recpRemovalRequested(edit);
             return;
         }
         if (editKey.primaryFingerprint() &&
             key.primaryFingerprint() &&
             !strcmp(editKey.primaryFingerprint(), key.primaryFingerprint())) {
             recpRemovalRequested(edit);
             return;
         }
     }
 }
 
 void SignEncryptWidget::removeRecipient(const KeyGroup &group)
 {
     for (CertificateLineEdit *edit: std::as_const(mRecpWidgets)) {
         const auto editGroup = edit->group();
         if (group.isNull() && editGroup.isNull()) {
             recpRemovalRequested(edit);
             return;
         }
         if (editGroup.name() == group.name()) {
             recpRemovalRequested(edit);
             return;
         }
     }
 }
 
 bool SignEncryptWidget::encryptSymmetric() const
 {
     return mSymmetric->isChecked();
 }
 
 void SignEncryptWidget::loadKeys()
 {
     KConfigGroup keys(KSharedConfig::openConfig(), "SignEncryptKeys");
     auto cache = KeyCache::instance();
     mSigSelect->setDefaultKey(keys.readEntry("SigningKey", QString()));
     mSelfSelect->setDefaultKey(keys.readEntry("EncryptKey", QString()));
 }
 
 void SignEncryptWidget::saveOwnKeys() const
 {
     KConfigGroup keys(KSharedConfig::openConfig(), "SignEncryptKeys");
     auto sigKey = mSigSelect->currentKey();
     auto encKey = mSelfSelect->currentKey();
     if (!sigKey.isNull()) {
         keys.writeEntry("SigningKey", sigKey.primaryFingerprint());
     }
     if (!encKey.isNull()) {
         keys.writeEntry("EncryptKey", encKey.primaryFingerprint());
     }
 }
 
 void SignEncryptWidget::setSigningChecked(bool value)
 {
     mSigChk->setChecked(value && !KeyCache::instance()->secretKeys().empty());
 }
 
 void SignEncryptWidget::setEncryptionChecked(bool checked)
 {
     if (checked) {
         const bool haveSecretKeys = !KeyCache::instance()->secretKeys().empty();
         const bool havePublicKeys = !KeyCache::instance()->keys().empty();
         const bool symmetricOnly = FileOperationsPreferences().symmetricEncryptionOnly();
         mEncSelfChk->setChecked(haveSecretKeys && !symmetricOnly);
         mEncOtherChk->setChecked(havePublicKeys && !symmetricOnly);
         mSymmetric->setChecked(symmetricOnly || !havePublicKeys);
     } else {
         mEncSelfChk->setChecked(false);
         mEncOtherChk->setChecked(false);
         mSymmetric->setChecked(false);
     }
 }
 
 void SignEncryptWidget::setProtocol(GpgME::Protocol proto)
 {
     if (mCurrentProto == proto) {
         return;
     }
     mCurrentProto = proto;
     onProtocolChanged();
 }
 
 void Kleo::SignEncryptWidget::onProtocolChanged()
 {
     mSigSelect->setKeyFilter(std::shared_ptr<KeyFilter>(new SignCertificateFilter(mCurrentProto)));
     mSelfSelect->setKeyFilter(std::shared_ptr<KeyFilter>(new EncryptSelfCertificateFilter(mCurrentProto)));
     const auto encFilter = std::shared_ptr<KeyFilter>(new EncryptCertificateFilter(mCurrentProto));
     for (CertificateLineEdit *edit : std::as_const(mRecpWidgets)) {
         edit->setKeyFilter(encFilter);
     }
 
     if (mIsExclusive) {
         mSymmetric->setDisabled(mCurrentProto == GpgME::CMS);
         if (mSymmetric->isChecked() && mCurrentProto == GpgME::CMS) {
             mSymmetric->setChecked(false);
         }
         if (mSigChk->isChecked() && mCurrentProto == GpgME::CMS &&
                 (mEncSelfChk->isChecked() || mEncOtherChk->isChecked())) {
             mSigChk->setChecked(false);
         }
     }
 }
 
+bool SignEncryptWidget::isComplete() const
+{
+    return !currentOp().isEmpty()
+        && std::all_of(std::cbegin(mRecpWidgets), std::cend(mRecpWidgets),
+                        [](auto w) { return !w->isEnabled() || w->hasAcceptableInput(); });
+}
+
 bool SignEncryptWidget::validate()
 {
     CertificateLineEdit *firstUnresolvedRecipient = nullptr;
     QStringList unresolvedRecipients;
     for (const auto edit: std::as_const(mRecpWidgets)) {
-        if (edit->isEnabled() && !edit->isEmpty() && edit->key().isNull() && edit->group().isNull()) {
+        if (edit->isEnabled() && !edit->hasAcceptableInput()) {
             if (!firstUnresolvedRecipient) {
                 firstUnresolvedRecipient = edit;
             }
             unresolvedRecipients.push_back(edit->text().toHtmlEscaped());
         }
     }
     if (!unresolvedRecipients.isEmpty()) {
         KMessageBox::errorList(this,
                                i18n("Could not find a key for the following recipients:"),
                                unresolvedRecipients,
                                i18n("Failed to find some keys"));
     }
     if (firstUnresolvedRecipient) {
         firstUnresolvedRecipient->setFocus();
     }
     return unresolvedRecipients.isEmpty();
 }
 
 void SignEncryptWidget::updateCheckBoxes()
 {
     const bool haveSecretKeys = !KeyCache::instance()->secretKeys().empty();
     const bool havePublicKeys = !KeyCache::instance()->keys().empty();
     const bool symmetricOnly = FileOperationsPreferences().symmetricEncryptionOnly();
     mSigChk->setEnabled(haveSecretKeys);
     mEncSelfChk->setEnabled(haveSecretKeys && !symmetricOnly);
     mEncOtherChk->setEnabled(havePublicKeys && !symmetricOnly);
     if (symmetricOnly) {
         mEncSelfChk->setChecked(false);
         mEncOtherChk->setChecked(false);
         mSymmetric->setChecked(true);
     }
 }
diff --git a/src/crypto/gui/signencryptwidget.h b/src/crypto/gui/signencryptwidget.h
index 5214d40f0..d655dd353 100644
--- a/src/crypto/gui/signencryptwidget.h
+++ b/src/crypto/gui/signencryptwidget.h
@@ -1,141 +1,145 @@
 /*  crypto/gui/signencryptwidget.h
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #pragma once
 
 #include <QWidget>
 #include <QVector>
 
 #include <Libkleo/KeyGroup>
 
 #include <gpgme++/key.h>
 
 class QCheckBox;
 class QVBoxLayout;
 
 namespace Kleo
 {
 class CertificateLineEdit;
 class KeySelectionCombo;
 class AbstractKeyListModel;
 class UnknownRecipientWidget;
 
 class SignEncryptWidget: public QWidget
 {
     Q_OBJECT
 public:
     /** If cmsSigEncExclusive is true CMS operations can be
      * done only either as sign or as encrypt */
     explicit SignEncryptWidget(QWidget *parent = nullptr, bool cmsSigEncExclusive = false);
 
     /** Overwrite default text with custom text, e.g. with a character marked
      *  as shortcut key. */
     void setSignAsText(const QString &text);
     void setEncryptForMeText(const QString &text);
     void setEncryptForOthersText(const QString &text);
     void setEncryptWithPasswordText(const QString &text);
 
     /** Returns the list of recipients selected in the dialog
      * or an empty list if encryption is disabled */
     std::vector<GpgME::Key> recipients() const;
 
     /** Returns the selected signing key or a null key if signing
      * is disabled. */
     GpgME::Key signKey() const;
 
     /** Returns the selected encrypt to self key or a null key if
      * encrypt to self is disabled. */
     GpgME::Key selfKey() const;
 
     /** Returns the operation based on the current selection or
      * a null string if nothing would happen. */
     QString currentOp() const;
 
     /** Whether or not symmetric encryption should also be used. */
     bool encryptSymmetric() const;
 
     /** Save the currently selected signing and encrypt to self keys. */
     void saveOwnKeys() const;
 
     /** Return whether or not all keys involved in the operation are
         compliant with CO_DE_VS, and all keys are valid (i.e. all
         userIDs have Validity >= Full).  */
     bool isDeVsAndValid() const;
 
     /** Set whether or not signing group should be checked */
     void setSigningChecked(bool value);
 
     /** Set whether or not encryption group should be checked */
     void setEncryptionChecked(bool value);
 
     /** Filter for a specific protocol. Use UnknownProtocol for both
      * S/MIME and OpenPGP */
     void setProtocol(GpgME::Protocol protocol);
 
     /** Add a recipient with the key key */
     void addRecipient(const GpgME::Key &key);
 
     /** Add a group of recipients */
     void addRecipient(const Kleo::KeyGroup &group);
 
     /** Add a placehoder for an unknown key */
     void addUnknownRecipient(const char *keyId);
 
     /** Remove all Recipients added by keyId or by key. */
     void clearAddedRecipients();
 
     /** Remove a Recipient key */
     void removeRecipient(const GpgME::Key &key);
 
     /** Remove a recipient group */
     void removeRecipient(const Kleo::KeyGroup &group);
 
-    /** Validate that each line edit with content has a key. */
+    /** Returns true if all required information has been entered. */
+    bool isComplete() const;
+
+    /** Returns true if all recipients have been resolved. Otherwise, shows
+        an error message and returns false. */
     bool validate();
 
 protected Q_SLOTS:
     void updateOp();
     void recipientsChanged();
     void recpRemovalRequested(CertificateLineEdit *w);
     void certificateSelectionRequested(CertificateLineEdit *w);
 
 protected:
     void loadKeys();
 
 Q_SIGNALS:
     /* Emitted when the certificate selection changed the operation
      * with that selection. e.g. "Sign" or "Sign/Encrypt".
      * If no crypto operation is selected this returns a null string. */
     void operationChanged(const QString &op);
 
     /* Emitted when the certificate selection might be changed. */
     void keysChanged();
 
 private:
     CertificateLineEdit* addRecipientWidget();
     void onProtocolChanged();
     void updateCheckBoxes();
 
 private:
     KeySelectionCombo *mSigSelect = nullptr;
     KeySelectionCombo *mSelfSelect = nullptr;
     QVector<CertificateLineEdit *> mRecpWidgets;
     QVector<UnknownRecipientWidget *> mUnknownWidgets;
     QVector<GpgME::Key> mAddedKeys;
     QVector<KeyGroup> mAddedGroups;
     QVBoxLayout *mRecpLayout = nullptr;
     QString mOp;
     AbstractKeyListModel *mModel = nullptr;
     QCheckBox *mSymmetric = nullptr;
     QCheckBox *mSigChk = nullptr;
     QCheckBox *mEncOtherChk = nullptr;
     QCheckBox *mEncSelfChk = nullptr;
     GpgME::Protocol mCurrentProto = GpgME::UnknownProtocol;
     const bool mIsExclusive;
 };
 } // namespace Kleo