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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/cocoa/dialog.mm
3 // Purpose: wxDialog class
4 // Author: David Elliott
5 // Modified by:
6 // Created: 2002/12/15
7 // RCS-ID: $Id$
8 // Copyright: 2002 David Elliott
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #include "wx/dialog.h"
15
16 #ifndef WX_PRECOMP
17 #include "wx/log.h"
18 #include "wx/app.h"
19 #include "wx/settings.h"
20 #endif //WX_PRECOMP
21
22 #include "wx/cocoa/autorelease.h"
23 #include "wx/cocoa/string.h"
24
25 #import <AppKit/NSPanel.h>
26 #import <AppKit/NSApplication.h>
27 #import <AppKit/NSEvent.h>
28 #import <Foundation/NSRunLoop.h>
29
30 // Lists to keep track of windows, so we can disable/enable them
31 // for modal dialogs
32 static wxWindowList wxModalDialogs;
33
34 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
35
36 WX_IMPLEMENT_COCOA_OWNER(wxDialog,NSPanel,NSWindow,NSWindow)
37
38 void wxDialog::Init()
39 {
40 m_isModal = false;
41 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
42 }
43
44 bool wxDialog::Create(wxWindow *parent, wxWindowID winid,
45 const wxString& title,
46 const wxPoint& pos,
47 const wxSize& size,
48 long style,
49 const wxString& name)
50 {
51 wxAutoNSAutoreleasePool pool;
52 wxTopLevelWindows.Append(this);
53
54 if(!CreateBase(parent,winid,pos,size,style,wxDefaultValidator,name))
55 return false;
56
57 if (parent)
58 parent->AddChild(this);
59
60 unsigned int cocoaStyle = NSWindowStyleForWxStyle(style);
61
62 NSRect cocoaRect = MakeInitialNSWindowContentRect(pos,size,cocoaStyle);
63
64 m_cocoaNSWindow = NULL;
65 SetNSPanel([[NSPanel alloc] initWithContentRect:cocoaRect styleMask:cocoaStyle backing:NSBackingStoreBuffered defer:NO]);
66 // NOTE: SetNSWindow has retained the Cocoa object for this object.
67 // Because we do not release on close, the following release matches the
68 // above alloc and thus the retain count will be 1.
69 [m_cocoaNSWindow release];
70 wxLogTrace(wxTRACE_COCOA_RetainRelease,wxT("wxDialog m_cocoaNSWindow retainCount=%d"),[m_cocoaNSWindow retainCount]);
71 [m_cocoaNSWindow setTitle:wxNSStringWithWxString(title)];
72 [m_cocoaNSWindow setHidesOnDeactivate:NO];
73
74 return true;
75 }
76
77 wxDialog::~wxDialog()
78 {
79 DisassociateNSPanel(GetNSPanel());
80 }
81
82 void wxDialog::CocoaDelegate_windowWillClose(void)
83 {
84 m_closed = true;
85 /* Actually, this isn't true anymore */
86 wxLogTrace(wxTRACE_COCOA,wxT("Woah: Dialogs are not generally closed"));
87 }
88
89 void wxDialog::SetModal(bool flag)
90 {
91 wxFAIL_MSG( wxT("wxDialog:SetModal obsolete now") );
92 }
93
94 bool wxDialog::Show(bool show)
95 {
96 if(m_isShown == show)
97 return false;
98
99 if(show)
100 {
101 wxAutoNSAutoreleasePool pool;
102
103 if (CanDoLayoutAdaptation())
104 DoLayoutAdaptation();
105
106 InitDialog();
107 if(IsModal())
108 { // ShowModal() will show the dialog
109 m_isShown = true;
110 return true;
111 }
112 }
113 else
114 {
115 if(IsModal())
116 { // this doesn't hide the dialog, base class Show(false) does.
117 wxLogTrace(wxTRACE_COCOA,wxT("abortModal"));
118 [wxTheApp->GetNSApplication() abortModal];
119 wxModalDialogs.DeleteObject(this);
120 m_isModal = false;
121 }
122 }
123 return wxTopLevelWindow::Show(show);
124 }
125
126 // Shows the dialog and begins a modal event loop. When the event loop
127 // is stopped (via EndModal()) it returns the exit code.
128 int wxDialog::ShowModal()
129 {
130 wxCHECK_MSG(!IsModal(),GetReturnCode(),wxT("wxDialog::ShowModal called within its own modal loop"));
131
132 // Show(true) will set m_isShown = true
133 m_isShown = false;
134 m_isModal = true;
135 wxModalDialogs.Append(this);
136
137 wxLogTrace(wxTRACE_COCOA,wxT("runModal"));
138 NSApplication *theNSApp = wxTheApp->GetNSApplication();
139 // If the app hasn't started, flush the event queue
140 // If we don't do this, the Dock doesn't get the message that
141 // the app has started so will refuse to activate it.
142 if(![theNSApp isRunning])
143 {
144 // We should only do a few iterations so one pool should be okay
145 wxAutoNSAutoreleasePool pool;
146 while(NSEvent *event = [theNSApp
147 nextEventMatchingMask:NSAnyEventMask
148 untilDate:[NSDate distantPast]
149 inMode:NSDefaultRunLoopMode
150 dequeue: YES])
151 {
152 [theNSApp sendEvent: event];
153 }
154 }
155
156 Show(true);
157 do {
158 wxAutoNSAutoreleasePool pool;
159 [wxTheApp->GetNSApplication() runModalForWindow:m_cocoaNSWindow];
160 } while(0);
161 wxLogTrace(wxTRACE_COCOA,wxT("runModal END"));
162
163 return GetReturnCode();
164 }
165
166 void wxDialog::EndModal(int retCode)
167 {
168 wxASSERT_MSG(IsModal(), wxT("EndModal() should only be used within ShowModal()"));
169 SetReturnCode(retCode);
170 Show(false);
171 }