Add a public wxModalDialogHook class for intercepting modal dialogs.
[wxWidgets.git] / src / cocoa / msgdlg.mm
1  /////////////////////////////////////////////////////////////////////////////
2 // Name:        src/cocoa/dirdlg.mm
3 // Purpose:     wxMessageDialog for wxCocoa
4 // Author:      Gareth Simpson
5 // Created:     2007-10-09
6 // RCS-ID:      $Id$
7 // Licence:     wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // ============================================================================
11 // declarations
12 // ============================================================================
13
14 // ----------------------------------------------------------------------------
15 // headers
16 // ----------------------------------------------------------------------------
17
18 // For compilers that support precompilation, includes "wx.h".
19 #include "wx/wxprec.h"
20
21 #if wxUSE_MSGDLG
22
23
24 #include "wx/msgdlg.h"
25
26
27 #ifndef WX_PRECOMP
28     #include "wx/app.h"
29 #endif
30
31
32 #include "wx/cocoa/autorelease.h"
33 #include "wx/cocoa/string.h"
34 #include "wx/modalhook.h"
35
36 #import <AppKit/NSAlert.h>
37 // ============================================================================
38 // implementation
39 // ============================================================================
40
41 IMPLEMENT_CLASS(wxCocoaMessageDialog, wxDialog)
42
43 // ----------------------------------------------------------------------------
44 // wxDirDialog
45 // ----------------------------------------------------------------------------
46
47 wxCocoaMessageDialog::wxCocoaMessageDialog(wxWindow *parent,
48                                            const wxString& message,
49                                            const wxString& caption,
50                                            long style,
51                                            const wxPoint& pos)
52     : wxMessageDialogWithCustomLabels(parent, message, caption, style)
53 {
54
55     wxTopLevelWindows.Append(this);
56
57     wxASSERT(CreateBase(parent,wxID_ANY,wxDefaultPosition,wxDefaultSize,style,wxDefaultValidator,wxDialogNameStr));
58
59     if ( parent )
60         parent->AddChild(this);
61
62
63     m_cocoaNSWindow = nil;
64     m_cocoaNSView = nil;
65 }
66
67 void wxCocoaMessageDialog::DoSetCustomLabel(wxString& var, const ButtonLabel& value)
68 {
69     wxMessageDialogWithCustomLabels::DoSetCustomLabel(var, value);
70
71     var.Replace("&", "");
72 }
73
74 int wxCocoaMessageDialog::ShowModal()
75 {
76     WX_HOOK_MODAL_DIALOG();
77
78     wxAutoNSAutoreleasePool thePool;
79
80     NSAlert *alert = [[[NSAlert alloc] init] autorelease];
81
82     const long style = GetMessageDialogStyle();
83
84     NSAlertStyle nsStyle = NSInformationalAlertStyle;
85
86     switch ( GetEffectiveIcon() )
87     {
88         case wxICON_ERROR:
89             nsStyle = NSCriticalAlertStyle;
90             break;
91
92         case wxICON_WARNING:
93             nsStyle = NSWarningAlertStyle;
94             break;
95     }
96
97     [alert setAlertStyle:nsStyle];
98
99
100
101
102     // work out what to display
103     // if the extended text is empty then we use the caption as the title
104     // and the message as the text (for backwards compatibility)
105     // but if the extended message is not empty then we use the message as the title
106     // and the extended message as the text because that makes more sense
107     if (m_extendedMessage.empty())
108     {
109         [alert setMessageText:wxNSStringWithWxString(m_caption)];
110         [alert setInformativeText:wxNSStringWithWxString(m_message)];
111     }
112     else
113     {
114         [alert setMessageText:wxNSStringWithWxString(m_message)];
115         [alert setInformativeText:wxNSStringWithWxString(m_extendedMessage)];
116     }
117
118     //    The wxReturn value corresponding to each button
119     int buttonId[4] = { 0, 0, 0, wxID_CANCEL /* time-out */ };
120     if (style & wxYES_NO)
121     {
122         if ( style & wxNO_DEFAULT )
123         {
124             [alert addButtonWithTitle:wxNSStringWithWxString(GetNoLabel())];
125             [alert addButtonWithTitle:wxNSStringWithWxString(GetYesLabel())];
126             buttonId[0] = wxID_NO;
127             buttonId[1] = wxID_YES;
128         }
129         else
130         {
131             [alert addButtonWithTitle:wxNSStringWithWxString(GetYesLabel())];
132             [alert addButtonWithTitle:wxNSStringWithWxString(GetNoLabel())];
133             buttonId[0] = wxID_YES;
134             buttonId[1] = wxID_NO;
135         }
136         if (style & wxCANCEL)
137         {
138             [alert addButtonWithTitle:wxNSStringWithWxString(GetCancelLabel())];
139             buttonId[2] = wxID_CANCEL;
140         }
141     }
142     else
143     {
144         // the MSW implementation even shows an OK button if it is not specified, we'll do the same
145         buttonId[0] = wxID_OK;
146         // using null as default title does not work on earlier systems
147         [alert addButtonWithTitle:wxNSStringWithWxString(GetOKLabel())];
148         if (style & wxCANCEL)
149         {
150             [alert addButtonWithTitle:wxNSStringWithWxString(GetCancelLabel())];
151             buttonId[1] = wxID_CANCEL;
152         }
153     }
154
155     int ret = [alert runModal];
156
157
158     return buttonId[ret-NSAlertFirstButtonReturn];
159 }
160
161 #endif // wxUSE_DIRDLG
162