[Qt] add InMempool() info to transaction details

src/qt/transactiondesc.cpp

@@ -35,9 +35,11 @@ QString TransactionDesc::FormatTxStatus(const CWalletTx& wtx)
     {
         int nDepth = wtx.GetDepthInMainChain();
         if (nDepth < 0)
-            return tr("conflicted");
+            return tr("conflicted with a transaction with %1 confirmations").arg(-nDepth);
         else if (GetAdjustedTime() - wtx.nTimeReceived > 2 * 60 && wtx.GetRequestCount() == 0)
             return tr("%1/offline").arg(nDepth);
+        else if (nDepth == 0)
+            return tr("0/unconfirmed, %1").arg((wtx.InMempool() ? tr("in memory pool") : tr("not in memory pool")));
         else if (nDepth < 6)
             return tr("%1/unconfirmed").arg(nDepth);
         else

src/wallet/wallet.cpp

@@ -1359,6 +1359,15 @@ CAmount CWalletTx::GetChange() const
     return nChangeCached;
 }
 
+bool CWalletTx::InMempool() const
+{
+    LOCK(mempool.cs);
+    if (mempool.exists(GetHash())) {
+        return true;
+    }
+    return false;
+}
+
 bool CWalletTx::IsTrusted() const
 {
     // Quick answer in most cases
@@ -1373,12 +1382,8 @@ bool CWalletTx::IsTrusted() const
         return false;
 
     // Don't trust unconfirmed transactions from us unless they are in the mempool.
-    {
-        LOCK(mempool.cs);
-        if (!mempool.exists(GetHash())) {
-            return false;
-        }
-    }
+    if (!InMempool())
+        return false;
 
     // Trusted if all inputs are from us and are in the mempool:
     BOOST_FOREACH(const CTxIn& txin, vin)

src/wallet/wallet.h

@@ -384,6 +384,7 @@ public:
     // True if only scriptSigs are different
     bool IsEquivalentTo(const CWalletTx& tx) const;
 
+    bool InMempool() const;
     bool IsTrusted() const;
 
     bool WriteToDisk(CWalletDB *pwalletdb);