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: dialog.mm 47995 2007-08-10 04:47:49Z DE $
8// Copyright:   2002 David Elliott
9// Licence:     wxWidgets 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
32static wxWindowList wxModalDialogs;
33
34IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
35
36WX_IMPLEMENT_COCOA_OWNER(wxDialog,NSPanel,NSWindow,NSWindow)
37
38void wxDialog::Init()
39{
40    m_isModal = false;
41    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
42}
43
44bool 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
77wxDialog::~wxDialog()
78{
79    DisassociateNSPanel(GetNSPanel());
80}
81
82void 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
89void wxDialog::SetModal(bool flag)
90{
91    wxFAIL_MSG( wxT("wxDialog:SetModal obsolete now") );
92}
93
94bool wxDialog::Show(bool show)
95{
96    if(m_isShown == show)
97        return false;
98
99    if(show)
100    {
101        wxAutoNSAutoreleasePool pool;
102        InitDialog();
103        if(IsModal())
104        {   // ShowModal() will show the dialog
105            m_isShown = true;
106            return true;
107        }
108    }
109    else
110    {
111        if(IsModal())
112        {   // this doesn't hide the dialog, base class Show(false) does.
113            wxLogTrace(wxTRACE_COCOA,wxT("abortModal"));
114            [wxTheApp->GetNSApplication() abortModal];
115            wxModalDialogs.DeleteObject(this);
116            m_isModal = false;
117        }
118    }
119    return wxTopLevelWindow::Show(show);
120}
121
122// Shows the dialog and begins a modal event loop.  When the event loop
123// is stopped (via EndModal()) it returns the exit code.
124int wxDialog::ShowModal()
125{
126    wxCHECK_MSG(!IsModal(),GetReturnCode(),wxT("wxDialog::ShowModal called within its own modal loop"));
127
128    // Show(true) will set m_isShown = true
129    m_isShown = false;
130    m_isModal = true;
131    wxModalDialogs.Append(this);
132
133    wxLogTrace(wxTRACE_COCOA,wxT("runModal"));
134    NSApplication *theNSApp = wxTheApp->GetNSApplication();
135    // If the app hasn't started, flush the event queue
136    // If we don't do this, the Dock doesn't get the message that
137    // the app has started so will refuse to activate it.
138    if(![theNSApp isRunning])
139    {
140        // We should only do a few iterations so one pool should be okay
141        wxAutoNSAutoreleasePool pool;
142        while(NSEvent *event = [theNSApp
143                    nextEventMatchingMask:NSAnyEventMask
144                    untilDate:[NSDate distantPast]
145                    inMode:NSDefaultRunLoopMode
146                    dequeue: YES])
147        {
148            [theNSApp sendEvent: event];
149        }
150    }
151
152    Show(true);
153    do {
154        wxAutoNSAutoreleasePool pool;
155        [wxTheApp->GetNSApplication() runModalForWindow:m_cocoaNSWindow];
156    } while(0);
157    wxLogTrace(wxTRACE_COCOA,wxT("runModal END"));
158
159    return GetReturnCode();
160}
161
162void wxDialog::EndModal(int retCode)
163{
164    wxASSERT_MSG(IsModal(), wxT("EndModal() should only be used within ShowModal()"));
165    SetReturnCode(retCode);
166    Show(false);
167}
168