1  // Copyright (c) 2010-2022 The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <node/interface_ui.h>
 6  
 7  #include <util/string.h>
 8  #include <util/translation.h>
 9  
10  #include <boost/signals2/optional_last_value.hpp>
11  #include <boost/signals2/signal.hpp>
12  
13  CClientUIInterface uiInterface;
14  
15  struct UISignals {
16      boost::signals2::signal<CClientUIInterface::ThreadSafeMessageBoxSig, boost::signals2::optional_last_value<bool>> ThreadSafeMessageBox;
17      boost::signals2::signal<CClientUIInterface::ThreadSafeQuestionSig, boost::signals2::optional_last_value<bool>> ThreadSafeQuestion;
18      boost::signals2::signal<CClientUIInterface::InitMessageSig> InitMessage;
19      boost::signals2::signal<CClientUIInterface::InitWalletSig> InitWallet;
20      boost::signals2::signal<CClientUIInterface::NotifyNumConnectionsChangedSig> NotifyNumConnectionsChanged;
21      boost::signals2::signal<CClientUIInterface::NotifyNetworkActiveChangedSig> NotifyNetworkActiveChanged;
22      boost::signals2::signal<CClientUIInterface::NotifyAlertChangedSig> NotifyAlertChanged;
23      boost::signals2::signal<CClientUIInterface::ShowProgressSig> ShowProgress;
24      boost::signals2::signal<CClientUIInterface::NotifyBlockTipSig> NotifyBlockTip;
25      boost::signals2::signal<CClientUIInterface::NotifyHeaderTipSig> NotifyHeaderTip;
26      boost::signals2::signal<CClientUIInterface::BannedListChangedSig> BannedListChanged;
27  };
28  static UISignals g_ui_signals;
29  
30  #define ADD_SIGNALS_IMPL_WRAPPER(signal_name)                                                                 \
31      boost::signals2::connection CClientUIInterface::signal_name##_connect(std::function<signal_name##Sig> fn) \
32      {                                                                                                         \
33          return g_ui_signals.signal_name.connect(fn);                                                          \
34      }
35  
36  ADD_SIGNALS_IMPL_WRAPPER(ThreadSafeMessageBox);
37  ADD_SIGNALS_IMPL_WRAPPER(ThreadSafeQuestion);
38  ADD_SIGNALS_IMPL_WRAPPER(InitMessage);
39  ADD_SIGNALS_IMPL_WRAPPER(InitWallet);
40  ADD_SIGNALS_IMPL_WRAPPER(NotifyNumConnectionsChanged);
41  ADD_SIGNALS_IMPL_WRAPPER(NotifyNetworkActiveChanged);
42  ADD_SIGNALS_IMPL_WRAPPER(NotifyAlertChanged);
43  ADD_SIGNALS_IMPL_WRAPPER(ShowProgress);
44  ADD_SIGNALS_IMPL_WRAPPER(NotifyBlockTip);
45  ADD_SIGNALS_IMPL_WRAPPER(NotifyHeaderTip);
46  ADD_SIGNALS_IMPL_WRAPPER(BannedListChanged);
47  
48  bool CClientUIInterface::ThreadSafeMessageBox(const bilingual_str& message, const std::string& caption, unsigned int style) { return g_ui_signals.ThreadSafeMessageBox(message, caption, style).value_or(false);}
49  bool CClientUIInterface::ThreadSafeQuestion(const bilingual_str& message, const std::string& non_interactive_message, const std::string& caption, unsigned int style) { return g_ui_signals.ThreadSafeQuestion(message, non_interactive_message, caption, style).value_or(false);}
50  void CClientUIInterface::InitMessage(const std::string& message) { return g_ui_signals.InitMessage(message); }
51  void CClientUIInterface::InitWallet() { return g_ui_signals.InitWallet(); }
52  void CClientUIInterface::NotifyNumConnectionsChanged(int newNumConnections) { return g_ui_signals.NotifyNumConnectionsChanged(newNumConnections); }
53  void CClientUIInterface::NotifyNetworkActiveChanged(bool networkActive) { return g_ui_signals.NotifyNetworkActiveChanged(networkActive); }
54  void CClientUIInterface::NotifyAlertChanged() { return g_ui_signals.NotifyAlertChanged(); }
55  void CClientUIInterface::ShowProgress(const std::string& title, int nProgress, bool resume_possible) { return g_ui_signals.ShowProgress(title, nProgress, resume_possible); }
56  void CClientUIInterface::NotifyBlockTip(SynchronizationState s, const CBlockIndex* i) { return g_ui_signals.NotifyBlockTip(s, i); }
57  void CClientUIInterface::NotifyHeaderTip(SynchronizationState s, int64_t height, int64_t timestamp, bool presync) { return g_ui_signals.NotifyHeaderTip(s, height, timestamp, presync); }
58  void CClientUIInterface::BannedListChanged() { return g_ui_signals.BannedListChanged(); }
59  
60  bool InitError(const bilingual_str& str)
61  {
62      uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_ERROR);
63      return false;
64  }
65  
66  bool InitError(const bilingual_str& str, const std::vector<std::string>& details)
67  {
68      // For now just flatten the list of error details into a string to pass to
69      // the base InitError overload. In the future, if more init code provides
70      // error details, the details could be passed separately from the main
71      // message for rich display in the GUI. But currently the only init
72      // functions which provide error details are ones that run during early init
73      // before the GUI uiInterface is registered, so there's no point passing
74      // main messages and details separately to uiInterface yet.
75      return InitError(details.empty() ? str : strprintf(Untranslated("%s:\n%s"), str, MakeUnorderedList(details)));
76  }
77  
78  void InitWarning(const bilingual_str& str)
79  {
80      uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_WARNING);
81  }