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// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2012-2022 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_NODE_INTERFACE_UI_H
#define BITCOIN_NODE_INTERFACE_UI_H
#include <functional>
#include <memory>
#include <string>
class CBlockIndex;
enum class SynchronizationState;
struct bilingual_str;
namespace boost {
namespace signals2 {
class connection;
}
} // namespace boost
/** Signals for UI communication. */
class CClientUIInterface
{
public:
/** Flags for CClientUIInterface::ThreadSafeMessageBox */
enum MessageBoxFlags : uint32_t {
ICON_INFORMATION = 0,
ICON_WARNING = (1U << 0),
ICON_ERROR = (1U << 1),
/**
* Mask of all available icons in CClientUIInterface::MessageBoxFlags
* This needs to be updated, when icons are changed there!
*/
ICON_MASK = (ICON_INFORMATION | ICON_WARNING | ICON_ERROR),
/** These values are taken from qmessagebox.h "enum StandardButton" to be directly usable */
BTN_OK = 0x00000400U, // QMessageBox::Ok
BTN_YES = 0x00004000U, // QMessageBox::Yes
BTN_NO = 0x00010000U, // QMessageBox::No
BTN_ABORT = 0x00040000U, // QMessageBox::Abort
BTN_RETRY = 0x00080000U, // QMessageBox::Retry
BTN_IGNORE = 0x00100000U, // QMessageBox::Ignore
BTN_CLOSE = 0x00200000U, // QMessageBox::Close
BTN_CANCEL = 0x00400000U, // QMessageBox::Cancel
BTN_DISCARD = 0x00800000U, // QMessageBox::Discard
BTN_HELP = 0x01000000U, // QMessageBox::Help
BTN_APPLY = 0x02000000U, // QMessageBox::Apply
BTN_RESET = 0x04000000U, // QMessageBox::Reset
/**
* Mask of all available buttons in CClientUIInterface::MessageBoxFlags
* This needs to be updated, when buttons are changed there!
*/
BTN_MASK = (BTN_OK | BTN_YES | BTN_NO | BTN_ABORT | BTN_RETRY | BTN_IGNORE |
BTN_CLOSE | BTN_CANCEL | BTN_DISCARD | BTN_HELP | BTN_APPLY | BTN_RESET),
/** Force blocking, modal message box dialog (not just OS notification) */
MODAL = 0x10000000U,
/** Do not print contents of message to debug log */
SECURE = 0x40000000U,
/** Predefined combinations for certain default usage cases */
MSG_INFORMATION = ICON_INFORMATION,
MSG_WARNING = (ICON_WARNING | BTN_OK | MODAL),
MSG_ERROR = (ICON_ERROR | BTN_OK | MODAL)
};
#define ADD_SIGNALS_DECL_WRAPPER(signal_name, rtype, ...) \
rtype signal_name(__VA_ARGS__); \
using signal_name##Sig = rtype(__VA_ARGS__); \
boost::signals2::connection signal_name##_connect(std::function<signal_name##Sig> fn);
/** Show message box. */
ADD_SIGNALS_DECL_WRAPPER(ThreadSafeMessageBox, bool, const bilingual_str& message, const std::string& caption, unsigned int style);
/** If possible, ask the user a question. If not, falls back to ThreadSafeMessageBox(noninteractive_message, caption, style) and returns false. */
ADD_SIGNALS_DECL_WRAPPER(ThreadSafeQuestion, bool, const bilingual_str& message, const std::string& noninteractive_message, const std::string& caption, unsigned int style);
/** Progress message during initialization. */
ADD_SIGNALS_DECL_WRAPPER(InitMessage, void, const std::string& message);
/** Wallet loader created. */
ADD_SIGNALS_DECL_WRAPPER(InitWallet, void, );
/** Number of network connections changed. */
ADD_SIGNALS_DECL_WRAPPER(NotifyNumConnectionsChanged, void, int newNumConnections);
/** Network activity state changed. */
ADD_SIGNALS_DECL_WRAPPER(NotifyNetworkActiveChanged, void, bool networkActive);
/**
* Status bar alerts changed.
*/
ADD_SIGNALS_DECL_WRAPPER(NotifyAlertChanged, void, );
/**
* Show progress e.g. for verifychain.
* resume_possible indicates shutting down now will result in the current progress action resuming upon restart.
*/
ADD_SIGNALS_DECL_WRAPPER(ShowProgress, void, const std::string& title, int nProgress, bool resume_possible);
/** New block has been accepted */
ADD_SIGNALS_DECL_WRAPPER(NotifyBlockTip, void, SynchronizationState, const CBlockIndex*);
/** Best header has changed */
ADD_SIGNALS_DECL_WRAPPER(NotifyHeaderTip, void, SynchronizationState, int64_t height, int64_t timestamp, bool presync);
/** Banlist did change. */
ADD_SIGNALS_DECL_WRAPPER(BannedListChanged, void, void);
};
/** Show warning message **/
void InitWarning(const bilingual_str& str);
/** Show error message **/
bool InitError(const bilingual_str& str);
bool InitError(const bilingual_str& str, const std::vector<std::string>& details);
extern CClientUIInterface uiInterface;
#endif // BITCOIN_NODE_INTERFACE_UI_H
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