File indexing completed on 2024-06-16 04:56:18

 /*  view/welcomewidget.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2017 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-kleopatra.h>
 
 #include "welcomewidget.h"
 
 #include "htmllabel.h"
 
 #include <KAboutData>
 
 #include <QAction>
 #include <QHBoxLayout>
 #include <QKeyEvent>
 #include <QToolButton>
 #include <QVBoxLayout>
 
 #include "commands/importcertificatefromfilecommand.h"
 #include "commands/newopenpgpcertificatecommand.h"
 
 #include <KConfigGroup>
 #include <KLocalizedString>
 #include <KSharedConfig>
 
 static const QString templ = QStringLiteral(
     "<h3>%1</h3>" // Welcome
     "<p>%2<p/><p>%3</p>" // Intro + Explanation
     "<ul><li>%4</li><li>%5</li></ul>" //
     "<p>%6</p>" // More info
     "");
 
 using namespace Kleo;
 
 namespace
 {
 /**
  * A tool button that can be activated with the Enter and Return keys additionally to the Space key.
  */
 class ToolButton : public QToolButton
 {
     Q_OBJECT
 public:
     using QToolButton::QToolButton;
 
 protected:
     void keyPressEvent(QKeyEvent *e) override
     {
         switch (e->key()) {
         case Qt::Key_Enter:
         case Qt::Key_Return: {
             // forward as key press of Key_Select to QToolButton
             QKeyEvent alternateEvent{e->type(),
                                      Qt::Key_Select,
                                      e->modifiers(),
                                      e->nativeScanCode(),
                                      e->nativeVirtualKey(),
                                      e->nativeModifiers(),
                                      e->text(),
                                      e->isAutoRepeat(),
                                      static_cast<ushort>(e->count())};
             QToolButton::keyPressEvent(&alternateEvent);
             if (!alternateEvent.isAccepted()) {
                 e->ignore();
             }
             break;
         }
         default:
             QToolButton::keyPressEvent(e);
         }
     }
 
     void keyReleaseEvent(QKeyEvent *e) override
     {
         switch (e->key()) {
         case Qt::Key_Enter:
         case Qt::Key_Return: {
             // forward as key release of Key_Select to QToolButton
             QKeyEvent alternateEvent{e->type(),
                                      Qt::Key_Select,
                                      e->modifiers(),
                                      e->nativeScanCode(),
                                      e->nativeVirtualKey(),
                                      e->nativeModifiers(),
                                      e->text(),
                                      e->isAutoRepeat(),
                                      static_cast<ushort>(e->count())};
             QToolButton::keyReleaseEvent(&alternateEvent);
             if (!alternateEvent.isAccepted()) {
                 e->ignore();
             }
             break;
         }
         default:
             QToolButton::keyReleaseEvent(e);
         }
     }
 };
 }
 
 class WelcomeWidget::Private
 {
 public:
     Private(WelcomeWidget *qq)
         : q(qq)
     {
         auto vLay = new QVBoxLayout(q);
         auto hLay = new QHBoxLayout;
 
         const QString welcome = i18nc("%1 is version", "Welcome to Kleopatra %1", KAboutData::applicationData().version());
         const QString introduction = i18n("Kleopatra is a front-end for the crypto software <a href=\"https://gnupg.org\">GnuPG</a>.");
 
         const QString keyExplanation = i18n("For most actions you need either a public key (certificate) or your own private key.");
 
         const QString privateKeyExplanation = i18n("The private key is needed to decrypt or sign.");
         const QString publicKeyExplanation = i18n("The public key can be used by others to verify your identity or encrypt to you.");
 
         const QString wikiUrl = i18nc("More info about public key cryptography, please link to your local version of Wikipedia",
                                       "https://en.wikipedia.org/wiki/Public-key_cryptography");
         const QString learnMore = i18nc("%1 is link a wiki article", "You can learn more about this on <a href=\"%1\">Wikipedia</a>.", wikiUrl);
 
         const auto labelText = templ.arg(welcome).arg(introduction).arg(keyExplanation).arg(privateKeyExplanation).arg(publicKeyExplanation).arg(learnMore);
         mLabel = new HtmlLabel{labelText, q};
         mLabel->setTextInteractionFlags(Qt::TextBrowserInteraction);
         mLabel->setOpenExternalLinks(true);
 
         auto genKeyAction = new QAction(q);
         genKeyAction->setText(i18n("New Key Pair..."));
         genKeyAction->setIcon(QIcon::fromTheme(QStringLiteral("view-certificate-add")));
 
         auto importAction = new QAction(q);
         importAction->setText(i18n("Import..."));
         importAction->setIcon(QIcon::fromTheme(QStringLiteral("view-certificate-import")));
 
         connect(importAction, &QAction::triggered, q, [this]() {
             import();
         });
         connect(genKeyAction, &QAction::triggered, q, [this]() {
             generate();
         });
 
         mGenerateBtn = new ToolButton{q};
         mGenerateBtn->setDefaultAction(genKeyAction);
         mGenerateBtn->setIconSize(QSize(64, 64));
         mGenerateBtn->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
         const auto generateBtnDescription = kxi18nc("@info",
                                                     "Create a new OpenPGP key pair.<nl/>"
                                                     "To create an S/MIME certificate request use "
                                                     "<interface>New S/MIME Certification Request</interface> "
                                                     "from the <interface>File</interface> menu instead.");
         mGenerateBtn->setToolTip(generateBtnDescription.toString());
         mGenerateBtn->setAccessibleDescription(generateBtnDescription.toString(Kuit::PlainText));
 
         KConfigGroup restrictions(KSharedConfig::openConfig(), QStringLiteral("KDE Action Restrictions"));
         mGenerateBtn->setEnabled(restrictions.readEntry("action/file_new_certificate", true));
 
         mImportBtn = new ToolButton{q};
         mImportBtn->setDefaultAction(importAction);
         mImportBtn->setIconSize(QSize(64, 64));
         mImportBtn->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
         const auto importBtnDescription = kxi18nc("@info",
                                                   "Import certificate from a file.<nl/>"
                                                   "To import from a public keyserver use <interface>Lookup on Server</interface> instead.");
         mImportBtn->setToolTip(importBtnDescription.toString());
         mImportBtn->setAccessibleDescription(importBtnDescription.toString(Kuit::PlainText));
         mImportBtn->setEnabled(restrictions.readEntry("action/file_import_certificate", true));
 
         auto btnLayout = new QHBoxLayout;
         btnLayout->addStretch(-1);
         btnLayout->addWidget(mGenerateBtn);
         btnLayout->addWidget(mImportBtn);
         btnLayout->addStretch(-1);
 
         vLay->addStretch(-1);
         vLay->addLayout(hLay);
         vLay->addLayout(btnLayout);
         vLay->addStretch(-1);
 
         hLay->addStretch(-1);
         hLay->addWidget(mLabel);
         hLay->addStretch(-1);
     }
 
     void import()
     {
         mImportBtn->setEnabled(false);
         auto cmd = new Kleo::ImportCertificateFromFileCommand();
         cmd->setParentWidget(q);
 
         QObject::connect(cmd, &Kleo::ImportCertificateFromFileCommand::finished, q, [this]() {
             mImportBtn->setEnabled(true);
         });
         cmd->start();
     }
 
     void generate()
     {
         mGenerateBtn->setEnabled(false);
         auto cmd = new NewOpenPGPCertificateCommand;
         cmd->setParentWidget(q);
 
         QObject::connect(cmd, &NewOpenPGPCertificateCommand::finished, q, [this]() {
             mGenerateBtn->setEnabled(true);
         });
         cmd->start();
     }
 
     WelcomeWidget *const q;
     HtmlLabel *mLabel = nullptr;
     ToolButton *mGenerateBtn = nullptr;
     ToolButton *mImportBtn = nullptr;
 };
 
 WelcomeWidget::WelcomeWidget(QWidget *parent)
     : QWidget(parent)
     , d(new Private(this))
 {
 }
 
 void WelcomeWidget::focusFirstChild(Qt::FocusReason reason)
 {
     d->mLabel->setFocus(reason);
 }
 
 #include "welcomewidget.moc"
 
 #include "moc_welcomewidget.cpp"