merge bitcoin-core/gui#214: Disable requests context menu actions when appropriate

Author: kwvg

src/qt/receivecoinsdialog.cpp

@@ -34,9 +34,9 @@ ReceiveCoinsDialog::ReceiveCoinsDialog(QWidget* parent) :
     // context menu actions
     QAction *copyURIAction = new QAction(tr("Copy URI"), this);
     QAction* copyAddressAction = new QAction(tr("Copy address"), this);
-    QAction *copyLabelAction = new QAction(tr("Copy label"), this);
-    QAction *copyMessageAction = new QAction(tr("Copy message"), this);
-    QAction *copyAmountAction = new QAction(tr("Copy amount"), this);
+    copyLabelAction = new QAction(tr("Copy label"), this);
+    copyMessageAction = new QAction(tr("Copy message"), this);
+    copyAmountAction = new QAction(tr("Copy amount"), this);
 
     // context menu
     contextMenu = new QMenu(this);
@@ -239,9 +239,18 @@ void ReceiveCoinsDialog::copyColumnToClipboard(int column)
 // context menu
 void ReceiveCoinsDialog::showMenu(const QPoint &point)
 {
-    if (!selectedRow().isValid()) {
+    const QModelIndex sel = selectedRow();
+    if (!sel.isValid()) {
         return;
     }
+
+    // disable context menu actions when appropriate
+    const RecentRequestsTableModel* const submodel = model->getRecentRequestsTableModel();
+    const RecentRequestEntry& req = submodel->entry(sel.row());
+    copyLabelAction->setDisabled(req.recipient.label.isEmpty());
+    copyMessageAction->setDisabled(req.recipient.message.isEmpty());
+    copyAmountAction->setDisabled(req.recipient.amount == 0);
+
     contextMenu->exec(QCursor::pos());
 }
 

src/qt/receivecoinsdialog.h

@@ -52,6 +52,9 @@ public Q_SLOTS:
     Ui::ReceiveCoinsDialog *ui;
     WalletModel *model;
     QMenu *contextMenu;
+    QAction* copyLabelAction;
+    QAction* copyMessageAction;
+    QAction* copyAmountAction;
 
     QModelIndex selectedRow();
     void copyColumnToClipboard(int column);