1 files changed, 35 insertions, 0 deletions
diff --git a/src/interface/wallet.h b/src/interface/wallet.h
new file mode 100644
index 0000000000..bf68df4e7d
--- /dev/null
+++ b/src/interface/wallet.h
@@ -0,0 +1,35 @@
+// Copyright (c) 2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_INTERFACE_WALLET_H
+#define BITCOIN_INTERFACE_WALLET_H
+
+#include <functional>
+#include <memory>
+#include <string>
+
+class CWallet;
+
+namespace interface {
+
+class Handler;
+
+//! Interface for accessing a wallet.
+class Wallet
+{
+public:
+    virtual ~Wallet() {}
+
+    //! Register handler for show progress messages.
+    using ShowProgressFn = std::function<void(const std::string& title, int progress)>;
+    virtual std::unique_ptr<Handler> handleShowProgress(ShowProgressFn fn) = 0;
+};
+
+//! Return implementation of Wallet interface. This function will be undefined
+//! in builds where ENABLE_WALLET is false.
+std::unique_ptr<Wallet> MakeWallet(CWallet& wallet);
+
+} // namespace interface
+
+#endif // BITCOIN_INTERFACE_WALLET_H