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