qt: Make PACKAGE_BUGREPORT link clickable

Co-authored-by: Russell Yanofsky <russ@yanofsky.org>

src/qt/bitcoin.cpp

@@ -45,10 +45,12 @@
 #include <QApplication>
 #include <QDebug>
 #include <QFontDatabase>
+#include <QLatin1String>
 #include <QLibraryInfo>
 #include <QLocale>
 #include <QMessageBox>
 #include <QSettings>
+#include <QStringBuilder>
 #include <QThread>
 #include <QTimer>
 #include <QTranslator>
@@ -417,7 +419,10 @@ void BitcoinApplication::shutdownResult()
 
 void BitcoinApplication::handleRunawayException(const QString &message)
 {
-    QMessageBox::critical(nullptr, "Runaway exception", BitcoinGUI::tr("A fatal error occurred. %1 can no longer continue safely and will quit.").arg(PACKAGE_NAME) + QString("<br><br>") + message);
+    QMessageBox::critical(
+        nullptr, tr("Runaway exception"),
+        tr("A fatal error occurred. %1 can no longer continue safely and will quit.").arg(PACKAGE_NAME) %
+        QLatin1String("<br><br>") % GUIUtil::MakeHtmlLink(message, PACKAGE_BUGREPORT));
     ::exit(EXIT_FAILURE);
 }
 

src/qt/guiutil.cpp

@@ -42,6 +42,7 @@
 #include <QGuiApplication>
 #include <QJsonObject>
 #include <QKeyEvent>
+#include <QLatin1String>
 #include <QLineEdit>
 #include <QList>
 #include <QLocale>
@@ -54,6 +55,7 @@
 #include <QShortcut>
 #include <QSize>
 #include <QString>
+#include <QStringBuilder>
 #include <QTextDocument> // for Qt::mightBeRichText
 #include <QThread>
 #include <QUrlQuery>
@@ -893,4 +895,11 @@ QImage GetImage(const QLabel* label)
 #endif
 }
 
+QString MakeHtmlLink(const QString& source, const QString& link)
+{
+    return QString(source).replace(
+        link,
+        QLatin1String("<a href=\"") % link % QLatin1String("\">") % link % QLatin1String("</a>"));
+}
+
 } // namespace GUIUtil

src/qt/guiutil.h

@@ -327,6 +327,11 @@ namespace GUIUtil
         QObject::connect(&source, &QObject::destroyed, object, std::forward<Fn>(function), connection);
     }
 
+    /**
+     * Replaces a plain text link with an HTML tagged one.
+     */
+    QString MakeHtmlLink(const QString& source, const QString& link);
+
 } // namespace GUIUtil
 
 #endif // BITCOIN_QT_GUIUTIL_H