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certificateselectionline.cpp
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certificateselectionline.cpp
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/* crypto/gui/certificateselectionline.cpp
This file is part of Kleopatra, the KDE keymanager
Copyright (c) 2009 Klarälvdalens Datakonsult AB
2016 Intevation GmbH
Kleopatra is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Kleopatra is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
In addition, as a special exception, the copyright holders give
permission to link the code of this program with any edition of
the Qt library by Trolltech AS, Norway (or with modified versions
of Qt that use the same license as Qt), and distribute linked
combinations including the two. You must obey the GNU General
Public License in all respects for all of the code used other than
Qt. If you modify this file, you may extend this exception to
your version of the file, but you are not obligated to do so. If
you do not wish to do so, delete this exception statement from
your version.
*/
#include "certificateselectionline.h"
#include <QToolButton>
#include <QLabel>
#include <QStackedWidget>
#include <QComboBox>
#include <QStylePainter>
#include <QStyleOptionComboBox>
#include <QStyle>
#include "utils/kleo_assert.h"
#include <KLocalizedString>
#include <Libkleo/Formatting>
#include <Libkleo/Predicates>
using namespace Kleo;
using namespace GpgME;
Q_DECLARE_METATYPE(GpgME::Key)
namespace
{
static QString make_initial_text(const std::vector<Key> &keys)
{
if (keys.empty()) {
return i18n("(no matching certificates found)");
} else {
return i18n("Please select a certificate");
}
}
// A QComboBox with an initial text (as known from web browsers)
//
// only works with read-only QComboBoxen, doesn't affect sizeHint
// as it should...
//
class ComboBox : public QComboBox
{
Q_OBJECT
Q_PROPERTY(QString initialText READ initialText WRITE setInitialText)
Q_PROPERTY(QIcon initialIcon READ initialIcon WRITE setInitialIcon)
public:
explicit ComboBox(QWidget *parent = nullptr)
: QComboBox(parent),
m_initialText(),
m_initialIcon()
{
}
explicit ComboBox(const QString &initialText, QWidget *parent = nullptr)
: QComboBox(parent),
m_initialText(initialText),
m_initialIcon()
{
}
explicit ComboBox(const QIcon &initialIcon, const QString &initialText, QWidget *parent = nullptr)
: QComboBox(parent),
m_initialText(initialText),
m_initialIcon(initialIcon)
{
}
QString initialText() const
{
return m_initialText;
}
QIcon initialIcon() const
{
return m_initialIcon;
}
public Q_SLOTS:
void setInitialText(const QString &txt)
{
if (txt == m_initialText) {
return;
}
m_initialText = txt;
if (currentIndex() == -1) {
update();
}
}
void setInitialIcon(const QIcon &icon)
{
if (icon.cacheKey() == m_initialIcon.cacheKey()) {
return;
}
m_initialIcon = icon;
if (currentIndex() == -1) {
update();
}
}
protected:
void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE {
QStylePainter p(this);
p.setPen(palette().color(QPalette::Text));
QStyleOptionComboBox opt;
initStyleOption(&opt);
p.drawComplexControl(QStyle::CC_ComboBox, opt);
if (currentIndex() == -1)
{
opt.currentText = m_initialText;
opt.currentIcon = m_initialIcon;
}
p.drawControl(QStyle::CE_ComboBoxLabel, opt);
}
private:
QString m_initialText;
QIcon m_initialIcon;
};
} // anonymous namespace
class Kleo::KeysComboBox : public ComboBox
{
Q_OBJECT
public:
explicit KeysComboBox(QWidget *parent = nullptr)
: ComboBox(parent) {}
explicit KeysComboBox(const QString &initialText, QWidget *parent = nullptr)
: ComboBox(initialText, parent) {}
explicit KeysComboBox(const std::vector<Key> &keys, QWidget *parent = nullptr)
: ComboBox(make_initial_text(keys), parent)
{
setKeys(keys);
}
void setKeys(const std::vector<Key> &keys)
{
clear();
for (const Key &key : keys) {
addItem(Formatting::formatForComboBox(key), qVariantFromValue(key));
}
}
std::vector<Key> keys() const
{
std::vector<Key> result;
result.reserve(count());
for (int i = 0, end = count(); i != end; ++i) {
result.push_back(qvariant_cast<Key>(itemData(i)));
}
return result;;
}
int findOrAdd(const Key &key)
{
for (int i = 0, end = count(); i != end; ++i)
if (_detail::ByFingerprint<std::equal_to>()(key, qvariant_cast<Key>(itemData(i)))) {
return i;
}
insertItem(0, Formatting::formatForComboBox(key), qVariantFromValue(key));
return 0;
}
void addAndSelectCertificate(const Key &key)
{
setCurrentIndex(findOrAdd(key));
}
Key currentKey() const
{
return qvariant_cast<Key>(itemData(currentIndex()));
}
};
CertificateSelectionLine::CertificateSelectionLine(const QString &toFrom, const QString &mailbox, const std::vector<Key> &pgp, bool pgpAmbig, const std::vector<Key> &cms, bool cmsAmbig, QWidget *q, QGridLayout &glay)
: pgpAmbiguous(pgpAmbig),
cmsAmbiguous(cmsAmbig),
mToFromLB(new QLabel(toFrom, q)),
mMailboxLB(new QLabel(mailbox, q)),
mSbox(new QStackedWidget(q)),
mPgpCB(new KeysComboBox(pgp, mSbox)),
mCmsCB(new KeysComboBox(cms, mSbox)),
noProtocolCB(new KeysComboBox(i18n("(please choose between OpenPGP and S/MIME first)"), mSbox)),
mToolTB(new QToolButton(q))
{
QFont bold;
bold.setBold(true);
mToFromLB->setFont(bold);
mMailboxLB->setTextFormat(Qt::PlainText);
mToolTB->setText(i18n("..."));
mPgpCB->setEnabled(!pgp.empty());
mCmsCB->setEnabled(!cms.empty());
noProtocolCB->setEnabled(false);
mPgpCB->setKeys(pgp);
if (pgpAmbiguous) {
mPgpCB->setCurrentIndex(-1);
}
mCmsCB->setKeys(cms);
if (cmsAmbiguous) {
mCmsCB->setCurrentIndex(-1);
}
mSbox->addWidget(mPgpCB);
mSbox->addWidget(mCmsCB);
mSbox->addWidget(noProtocolCB);
mSbox->setCurrentWidget(noProtocolCB);
const int row = glay.rowCount();
unsigned int col = 0;
glay.addWidget(mToFromLB, row, col++);
glay.addWidget(mMailboxLB, row, col++);
glay.addWidget(mSbox, row, col++);
glay.addWidget(mToolTB, row, col++);
assert(col == NumColumns);
q->connect(mPgpCB, SIGNAL(currentIndexChanged(int)), SLOT(slotCompleteChanged()));
q->connect(mCmsCB, SIGNAL(currentIndexChanged(int)), SLOT(slotCompleteChanged()));
q->connect(mToolTB, SIGNAL(clicked()), SLOT(slotCertificateSelectionDialogRequested()));
}
QString CertificateSelectionLine::mailboxText() const
{
return mMailboxLB->text();
}
void CertificateSelectionLine::addAndSelectCertificate(const Key &key) const
{
if (KeysComboBox *const cb = comboBox(key.protocol())) {
cb->addAndSelectCertificate(key);
cb->setEnabled(true);
}
}
void CertificateSelectionLine::showHide(Protocol proto, bool &first, bool showAll, bool op) const
{
if (op && (showAll || wasInitiallyAmbiguous(proto))) {
mToFromLB->setVisible(first);
first = false;
QFont font = mMailboxLB->font();
font.setBold(wasInitiallyAmbiguous(proto));
mMailboxLB->setFont(font);
mSbox->setCurrentIndex(proto);
mMailboxLB->show();
mSbox->show();
mToolTB->show();
} else {
mToFromLB->hide();
mMailboxLB->hide();
mSbox->hide();
mToolTB->hide();
}
}
bool CertificateSelectionLine::wasInitiallyAmbiguous(Protocol proto) const
{
return (proto == OpenPGP && pgpAmbiguous)
|| (proto == CMS && cmsAmbiguous);
}
bool CertificateSelectionLine::isStillAmbiguous(Protocol proto) const
{
kleo_assert(proto == OpenPGP || proto == CMS);
const KeysComboBox *const cb = comboBox(proto);
return cb->currentIndex() == -1;
}
Key CertificateSelectionLine::key(Protocol proto) const
{
kleo_assert(proto == OpenPGP || proto == CMS);
const KeysComboBox *const cb = comboBox(proto);
return cb->currentKey();
}
const QToolButton *CertificateSelectionLine::toolButton() const
{
return mToolTB;
}
void CertificateSelectionLine::kill()
{
delete mToFromLB;
delete mMailboxLB;
delete mSbox;
delete mToolTB;
}
KeysComboBox *CertificateSelectionLine::comboBox(Protocol proto) const
{
if (proto == OpenPGP) {
return mPgpCB;
}
if (proto == CMS) {
return mCmsCB;
}
return nullptr;
}
#include "certificateselectionline.moc"

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