qml: add receive request history model and URI sharing (issue #14)

Author: johnny9

qml/models/paymentrequest.cpp

@@ -6,6 +6,7 @@
 
 #include <key_io.h>
 #include <qml/bitcoinunits.h>
+#include <qml/models/receiverequesthistorymodel.h>
 
 #include <QString>
 
@@ -15,6 +16,7 @@ PaymentRequest::PaymentRequest(QObject* parent)
     m_amount = new BitcoinAmount(this);
     const auto persisted_unit = QmlBitcoinUnits::unitFromSettings();
     m_amount->setUnit(persisted_unit == QmlBitcoinUnits::Unit::SAT ? BitcoinAmount::Unit::SAT : BitcoinAmount::Unit::BTC);
+    connect(m_amount, &BitcoinAmount::amountChanged, this, &PaymentRequest::uriChanged);
 }
 
 QString PaymentRequest::address() const
@@ -39,6 +41,7 @@ void PaymentRequest::setLabel(const QString& label)
     }
     m_label = label;
     Q_EMIT labelChanged();
+    Q_EMIT uriChanged();
 }
 
 QString PaymentRequest::message() const
@@ -53,6 +56,7 @@ void PaymentRequest::setMessage(const QString& message)
     }
     m_message = message;
     Q_EMIT messageChanged();
+    Q_EMIT uriChanged();
 }
 
 BitcoinAmount* PaymentRequest::amount() const
@@ -89,10 +93,22 @@ void PaymentRequest::setId(unsigned int id)
     Q_EMIT idChanged();
 }
 
+QString PaymentRequest::uri() const
+{
+    return ReceiveRequestHistoryModel::BuildBitcoinUri(address(), m_amount->satoshi(), m_label, m_message);
+}
+
+QString PaymentRequest::qrPayload() const
+{
+    const QString request_uri = uri();
+    return request_uri.isEmpty() ? address() : request_uri;
+}
+
 void PaymentRequest::setDestination(const CTxDestination& destination)
 {
     m_destination = destination;
     Q_EMIT addressChanged();
+    Q_EMIT uriChanged();
 }
 
 CTxDestination PaymentRequest::destination() const
@@ -113,6 +129,7 @@ void PaymentRequest::clear()
     Q_EMIT messageChanged();
     Q_EMIT amountErrorChanged();
     Q_EMIT idChanged();
+    Q_EMIT uriChanged();
 }
 
 void PaymentRequest::setDisplayUnit(const int display_unit)

qml/models/paymentrequest.h

@@ -22,6 +22,8 @@ class PaymentRequest : public QObject
     Q_PROPERTY(BitcoinAmount* amount READ amount CONSTANT)
     Q_PROPERTY(QString amountError READ amountError NOTIFY amountErrorChanged)
     Q_PROPERTY(QString id READ id NOTIFY idChanged)
+    Q_PROPERTY(QString uri READ uri NOTIFY uriChanged)
+    Q_PROPERTY(QString qrPayload READ qrPayload NOTIFY uriChanged)
 
 public:
     explicit PaymentRequest(QObject* parent = nullptr);
@@ -42,6 +44,9 @@ class PaymentRequest : public QObject
     QString id() const;
     void setId(unsigned int id);
 
+    QString uri() const;
+    QString qrPayload() const;
+
     void setDestination(const CTxDestination& destination);
     CTxDestination destination() const;
 
@@ -54,6 +59,7 @@ class PaymentRequest : public QObject
     void messageChanged();
     void amountErrorChanged();
     void idChanged();
+    void uriChanged();
 
 private:
     static QString FormatAddress(const QString& address);