[UI] Add Instantsend parameter to URI/QR-code (#1042)

src/qt/forms/receivecoinsdialog.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>776</width>
-    <height>364</height>
+    <height>387</height>
    </rect>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,1">
@@ -127,7 +127,7 @@
           </property>
          </widget>
         </item>
-        <item row="8" column="2">
+        <item row="9" column="2">
          <layout class="QHBoxLayout" name="horizontalLayout">
           <item>
            <widget class="QPushButton" name="receiveButton">
@@ -176,13 +176,23 @@
           </item>
          </layout>
         </item>
-        <item row="8" column="0">
+        <item row="9" column="0">
          <widget class="QLabel" name="label_7">
           <property name="text">
            <string/>
           </property>
          </widget>
         </item>
+        <item row="8" column="2">
+         <widget class="QCheckBox" name="checkUseInstantSend">
+          <property name="text">
+           <string>Request InstantSend</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
        </layout>
       </item>
      </layout>

src/qt/guiutil.cpp

@@ -151,6 +151,8 @@ bool parseBitcoinURI(const QUrl &uri, SendCoinsRecipient *out)
     QUrlQuery uriQuery(uri);
     QList<QPair<QString, QString> > items = uriQuery.queryItems();
 #endif
+    
+    rv.fUseInstantSend = false;
     for (QList<QPair<QString, QString> >::iterator i = items.begin(); i != items.end(); i++)
     {
         bool fShouldReturnFalse = false;
@@ -165,6 +167,13 @@ bool parseBitcoinURI(const QUrl &uri, SendCoinsRecipient *out)
             rv.label = i->second;
             fShouldReturnFalse = false;
         }
+        if (i->first == "IS")
+        {
+            if(i->second.compare(QString("1")) == 0)
+                rv.fUseInstantSend = true;
+
+            fShouldReturnFalse = false;
+        }
         if (i->first == "message")
         {
             rv.message = i->second;
@@ -230,6 +239,12 @@ QString formatBitcoinURI(const SendCoinsRecipient &info)
         ret += QString("%1message=%2").arg(paramCount == 0 ? "?" : "&").arg(msg);
         paramCount++;
     }
+    
+    if(info.fUseInstantSend)
+    {
+        ret += QString("%1IS=1").arg(paramCount == 0 ? "?" : "&");
+        paramCount++;
+    }
 
     return ret;
 }

src/qt/receivecoinsdialog.cpp

@@ -152,6 +152,7 @@ void ReceiveCoinsDialog::on_receiveButton_clicked()
     }
     SendCoinsRecipient info(address, label,
         ui->reqAmount->value(), ui->reqMessage->text());
+    info.fUseInstantSend = ui->checkUseInstantSend->isChecked();
     ReceiveRequestDialog *dialog = new ReceiveRequestDialog(this);
     dialog->setAttribute(Qt::WA_DeleteOnClose);
     dialog->setModel(model->getOptionsModel());

src/qt/receiverequestdialog.cpp

@@ -149,6 +149,10 @@ void ReceiveRequestDialog::update()
         html += "<b>"+tr("Label")+"</b>: " + GUIUtil::HtmlEscape(info.label) + "<br>";
     if(!info.message.isEmpty())
         html += "<b>"+tr("Message")+"</b>: " + GUIUtil::HtmlEscape(info.message) + "<br>";
+    if(info.fUseInstantSend)
+        html += "<b>"+tr("InstantSend")+"</b>: Yes<br>";
+    else
+        html += "<b>"+tr("InstantSend")+"</b>: No<br>";
     ui->outUri->setText(html);
 
 #ifdef USE_QRCODE

src/qt/test/uritests.cpp

@@ -63,4 +63,32 @@ void URITests::uriTests()
 
     uri.setUrl(QString("dash:XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg?amount=1,000.0&label=Some Example"));
     QVERIFY(!GUIUtil::parseBitcoinURI(uri, &rv));
+
+    uri.setUrl(QString("dash:XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg?amount=100&label=Some Example&message=Some Example Message&IS=1"));
+    QVERIFY(GUIUtil::parseBitcoinURI(uri, &rv));
+    QVERIFY(rv.address == QString("XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg"));
+    QVERIFY(rv.amount == 10000000000LL);
+    QVERIFY(rv.label == QString("Some Example"));
+    QVERIFY(rv.message == QString("Some Example Message"));
+    QVERIFY(rv.fUseInstantSend == 1);
+
+    uri.setUrl(QString("dash:XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg?amount=100&label=Some Example&message=Some Example Message&IS=Something Invalid"));
+    QVERIFY(GUIUtil::parseBitcoinURI(uri, &rv));
+    QVERIFY(rv.address == QString("XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg"));
+    QVERIFY(rv.amount == 10000000000LL);
+    QVERIFY(rv.label == QString("Some Example"));
+    QVERIFY(rv.message == QString("Some Example Message"));
+    QVERIFY(rv.fUseInstantSend != 1);
+
+    uri.setUrl(QString("dash:XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg?IS=1"));
+    QVERIFY(GUIUtil::parseBitcoinURI(uri, &rv));
+    QVERIFY(rv.fUseInstantSend == 1);
+
+    uri.setUrl(QString("dash:XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg?IS=0"));
+    QVERIFY(GUIUtil::parseBitcoinURI(uri, &rv));
+    QVERIFY(rv.fUseInstantSend != 1);
+
+    uri.setUrl(QString("dash:XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg"));
+    QVERIFY(GUIUtil::parseBitcoinURI(uri, &rv));
+    QVERIFY(rv.fUseInstantSend != 1);
 }