src/ui_interface.h

   1 // Copyright (c) 2010 Satoshi Nakamoto
   2 // Copyright (c) 2012 The Bitcoin Core developers
   3 // Distributed under the MIT software license, see the accompanying
   4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #ifndef BITCOIN_UI_INTERFACE_H
   7 #define BITCOIN_UI_INTERFACE_H
   8
   9 #include <stdint.h>
  10 #include <string>
  11
  12 #include <boost/signals2/last_value.hpp>
  13 #include <boost/signals2/signal.hpp>
  14
  15 class CBasicKeyStore;
  16 class CWallet;
  17 class uint256;
  18
  19 /** General change type (added, updated, removed). */
  20 enum ChangeType
  21 {
  22     CT_NEW,
  23     CT_UPDATED,
  24     CT_DELETED
  25 };
  26
  27 /** Signals for UI communication. */
  28 class CClientUIInterface
  29 {
  30 public:
  31     /** Flags for CClientUIInterface::ThreadSafeMessageBox */
  32     enum MessageBoxFlags
  33     {
  34         ICON_INFORMATION    = 0,
  35         ICON_WARNING        = (1U << 0),
  36         ICON_ERROR          = (1U << 1),
  37         /**
  38          * Mask of all available icons in CClientUIInterface::MessageBoxFlags
  39          * This needs to be updated, when icons are changed there!
  40          */
  41         ICON_MASK = (ICON_INFORMATION | ICON_WARNING | ICON_ERROR),
  42
  43         /** These values are taken from qmessagebox.h "enum StandardButton" to be directly usable */
  44         BTN_OK      = 0x00000400U, // QMessageBox::Ok
  45         BTN_YES     = 0x00004000U, // QMessageBox::Yes
  46         BTN_NO      = 0x00010000U, // QMessageBox::No
  47         BTN_ABORT   = 0x00040000U, // QMessageBox::Abort
  48         BTN_RETRY   = 0x00080000U, // QMessageBox::Retry
  49         BTN_IGNORE  = 0x00100000U, // QMessageBox::Ignore
  50         BTN_CLOSE   = 0x00200000U, // QMessageBox::Close
  51         BTN_CANCEL  = 0x00400000U, // QMessageBox::Cancel
  52         BTN_DISCARD = 0x00800000U, // QMessageBox::Discard
  53         BTN_HELP    = 0x01000000U, // QMessageBox::Help
  54         BTN_APPLY   = 0x02000000U, // QMessageBox::Apply
  55         BTN_RESET   = 0x04000000U, // QMessageBox::Reset
  56         /**
  57          * Mask of all available buttons in CClientUIInterface::MessageBoxFlags
  58          * This needs to be updated, when buttons are changed there!
  59          */
  60         BTN_MASK = (BTN_OK | BTN_YES | BTN_NO | BTN_ABORT | BTN_RETRY | BTN_IGNORE |
  61                     BTN_CLOSE | BTN_CANCEL | BTN_DISCARD | BTN_HELP | BTN_APPLY | BTN_RESET),
  62
  63         /** Force blocking, modal message box dialog (not just OS notification) */
  64         MODAL               = 0x10000000U,
  65
  66         /** Do not print contents of message to debug log */
  67         SECURE              = 0x40000000U,
  68
  69         /** Predefined combinations for certain default usage cases */
  70         MSG_INFORMATION = ICON_INFORMATION,
  71         MSG_WARNING = (ICON_WARNING | BTN_OK | MODAL),
  72         MSG_ERROR = (ICON_ERROR | BTN_OK | MODAL)
  73     };
  74
  75     /** Show message box. */
  76     boost::signals2::signal<bool (const std::string& message, const std::string& caption, unsigned int style), boost::signals2::last_value<bool> > ThreadSafeMessageBox;
  77
  78     /** Progress message during initialization. */
  79     boost::signals2::signal<void (const std::string &message)> InitMessage;
  80
  81     /** Number of network connections changed. */
  82     boost::signals2::signal<void (int newNumConnections)> NotifyNumConnectionsChanged;
  83
  84     /**
  85      * New, updated or cancelled alert.
  86      * @note called with lock cs_mapAlerts held.
  87      */
  88     boost::signals2::signal<void (const uint256 &hash, ChangeType status)> NotifyAlertChanged;
  89
  90     /** A wallet has been loaded. */
  91     boost::signals2::signal<void (CWallet* wallet)> LoadWallet;
  92
  93     /** Show progress e.g. for verifychain */
  94     boost::signals2::signal<void (const std::string &title, int nProgress)> ShowProgress;
  95
  96     /** New block has been accepted */
  97     boost::signals2::signal<void (const uint256& hash)> NotifyBlockTip;
  98 };
  99
 100 extern CClientUIInterface uiInterface;
 101
 102 #endif // BITCOIN_UI_INTERFACE_H