src/osx/carbon/msgdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/carbon/msgdlg.cpp
   3 // Purpose:     wxMessageDialog
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/msgdlg.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/intl.h"
  18     #include "wx/app.h"
  19 #endif
  20
  21 #include "wx/thread.h"
  22 #include "wx/modalhook.h"
  23 #include "wx/osx/uma.h"
  24
  25
  26 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  27
  28
  29 wxMessageDialog::wxMessageDialog(wxWindow *parent,
  30                                  const wxString& message,
  31                                  const wxString& caption,
  32                                  long style,
  33                                  const wxPoint& WXUNUSED(pos))
  34                : wxMessageDialogBase(parent, message, caption, style)
  35 {
  36 }
  37
  38 int wxMessageDialog::ShowModal()
  39 {
  40     WX_HOOK_MODAL_DIALOG();
  41
  42     int resultbutton = wxID_CANCEL;
  43
  44     const long style = GetMessageDialogStyle();
  45
  46     wxASSERT_MSG( (style & 0x3F) != wxYES,
  47         "this style is not supported on Mac" );
  48
  49     AlertType alertType = kAlertPlainAlert;
  50
  51     switch ( GetEffectiveIcon() )
  52     {
  53         case wxICON_ERROR:
  54             alertType = kAlertStopAlert;
  55             break;
  56
  57         case wxICON_WARNING:
  58             alertType = kAlertCautionAlert;
  59             break;
  60
  61         case wxICON_QUESTION:
  62         case wxICON_INFORMATION:
  63             alertType = kAlertNoteAlert;
  64             break;
  65     }
  66
  67     // (the standard alert has two slots [title, text]
  68     //  for the three wxStrings [caption, message, extended message])
  69     //
  70     // if the extended text is empty we use the caption and
  71     // the message (for backwards compatibility)
  72     //
  73     // if the extended text is not empty we ignore the caption
  74     // and use the message and the extended message
  75
  76
  77     wxString msgtitle,msgtext;
  78     if(m_extendedMessage.IsEmpty())
  79     {
  80         if ( m_caption.IsEmpty() )
  81             msgtitle = m_message;
  82         else
  83         {
  84             msgtitle = m_caption;
  85             msgtext  = m_message;
  86         }
  87     }
  88     else
  89     {
  90         msgtitle = m_message;
  91         msgtext  = m_extendedMessage;
  92     }
  93
  94
  95     if ( !wxIsMainThread() )
  96     {
  97         CFStringRef defaultButtonTitle = NULL;
  98         CFStringRef alternateButtonTitle = NULL;
  99         CFStringRef otherButtonTitle = NULL;
 100
 101         wxCFStringRef cfTitle( msgtitle, GetFont().GetEncoding() );
 102         wxCFStringRef cfText( msgtext, GetFont().GetEncoding() );
 103
 104         wxCFStringRef cfNoString( GetNoLabel().c_str(), GetFont().GetEncoding() );
 105         wxCFStringRef cfYesString( GetYesLabel().c_str(), GetFont().GetEncoding() );
 106         wxCFStringRef cfOKString( GetOKLabel().c_str() , GetFont().GetEncoding()) ;
 107         wxCFStringRef cfCancelString( GetCancelLabel().c_str(), GetFont().GetEncoding() );
 108
 109         int buttonId[4] = { 0, 0, 0, wxID_CANCEL /* time-out */ };
 110
 111         if (style & wxYES_NO)
 112         {
 113             if ( style & wxNO_DEFAULT )
 114             {
 115                 defaultButtonTitle = cfNoString;
 116                 alternateButtonTitle = cfYesString;
 117                 buttonId[0] = wxID_NO;
 118                 buttonId[1] = wxID_YES;
 119             }
 120             else
 121             {
 122                 defaultButtonTitle = cfYesString;
 123                 alternateButtonTitle = cfNoString;
 124                 buttonId[0] = wxID_YES;
 125                 buttonId[1] = wxID_NO;
 126             }
 127             if (style & wxCANCEL)
 128             {
 129                 otherButtonTitle = cfCancelString;
 130                 buttonId[2] = wxID_CANCEL;
 131             }
 132         }
 133         else
 134         {
 135             // the MSW implementation even shows an OK button if it is not specified, we'll do the same
 136             buttonId[0] = wxID_OK;
 137             // using null as default title does not work on earlier systems
 138             defaultButtonTitle = cfOKString;
 139             if (style & wxCANCEL)
 140             {
 141                 alternateButtonTitle = cfCancelString;
 142                 buttonId[1] = wxID_CANCEL;
 143             }
 144         }
 145
 146         CFOptionFlags exitButton;
 147         OSStatus err = CFUserNotificationDisplayAlert(
 148             0, alertType, NULL, NULL, NULL, cfTitle, cfText,
 149             defaultButtonTitle, alternateButtonTitle, otherButtonTitle, &exitButton );
 150         if (err == noErr)
 151             resultbutton = buttonId[exitButton];
 152     }
 153     else
 154     {
 155         short result;
 156
 157         AlertStdCFStringAlertParamRec param;
 158         wxCFStringRef cfNoString( GetNoLabel().c_str(), GetFont().GetEncoding() );
 159         wxCFStringRef cfYesString( GetYesLabel().c_str(), GetFont().GetEncoding() );
 160         wxCFStringRef cfOKString( GetOKLabel().c_str(), GetFont().GetEncoding() );
 161         wxCFStringRef cfCancelString( GetCancelLabel().c_str(), GetFont().GetEncoding() );
 162
 163         wxCFStringRef cfTitle( msgtitle, GetFont().GetEncoding() );
 164         wxCFStringRef cfText = msgtext.IsEmpty() ? NULL : wxCFStringRef( msgtext, GetFont().GetEncoding() );
 165
 166         param.movable = true;
 167         param.flags = 0;
 168         param.version = kStdCFStringAlertVersionOne;
 169
 170         bool skipDialog = false;
 171
 172         if (style & wxYES_NO)
 173         {
 174             if (style & wxCANCEL)
 175             {
 176                 param.defaultText = cfYesString;
 177                 param.cancelText = cfCancelString;
 178                 param.otherText = cfNoString;
 179                 param.helpButton = false;
 180                 param.defaultButton = style & wxNO_DEFAULT ? kAlertStdAlertOtherButton : kAlertStdAlertOKButton;
 181                 param.cancelButton = kAlertStdAlertCancelButton;
 182             }
 183             else
 184             {
 185                 param.defaultText = cfYesString;
 186                 param.cancelText = NULL;
 187                 param.otherText = cfNoString;
 188                 param.helpButton = false;
 189                 param.defaultButton = style & wxNO_DEFAULT ? kAlertStdAlertOtherButton : kAlertStdAlertOKButton;
 190                 param.cancelButton = 0;
 191             }
 192         }
 193         // the MSW implementation even shows an OK button if it is not specified, we'll do the same
 194         else
 195         {
 196             if (style & wxCANCEL)
 197             {
 198                 // that's a cancel missing
 199                 param.defaultText = cfOKString;
 200                 param.cancelText = cfCancelString;
 201                 param.otherText = NULL;
 202                 param.helpButton = false;
 203                 param.defaultButton = kAlertStdAlertOKButton;
 204                 param.cancelButton = 0;
 205             }
 206             else
 207             {
 208                 param.defaultText = cfOKString;
 209                 param.cancelText = NULL;
 210                 param.otherText = NULL;
 211                 param.helpButton = false;
 212                 param.defaultButton = kAlertStdAlertOKButton;
 213                 param.cancelButton = 0;
 214             }
 215         }
 216
 217         param.position = kWindowDefaultPosition;
 218         if ( !skipDialog )
 219         {
 220             DialogRef alertRef;
 221             CreateStandardAlert( alertType, cfTitle, cfText, &param, &alertRef );
 222             wxDialog::OSXBeginModalDialog();
 223             RunStandardAlert( alertRef, NULL, &result );
 224             wxDialog::OSXEndModalDialog();
 225         }
 226         else
 227         {
 228             return wxID_CANCEL;
 229         }
 230
 231         if (style & wxOK)
 232         {
 233             switch ( result )
 234             {
 235             case 1:
 236                 resultbutton = wxID_OK;
 237                 break;
 238
 239             case 2:
 240                 // TODO: add Cancel button
 241                 // if (style & wxCANCEL)
 242                 //     resultbutton = wxID_CANCEL;
 243                 break;
 244
 245             case 3:
 246             default:
 247                 break;
 248             }
 249         }
 250         else if (style & wxYES_NO)
 251         {
 252             switch ( result )
 253             {
 254             case 1:
 255                 resultbutton = wxID_YES;
 256                 break;
 257
 258             case 2:
 259                 if (!(style & wxCANCEL))
 260                     resultbutton = wxID_CANCEL;
 261                 break;
 262
 263             case 3:
 264                 resultbutton = wxID_NO;
 265                 break;
 266
 267             default:
 268                 break;
 269             }
 270         }
 271     }
 272
 273     SetReturnCode(resultbutton);
 274
 275     return resultbutton;
 276 }