src/osx/cocoa/filedlg.mm

/////////////////////////////////////////////////////////////////////////////
// Name:        src/cocoa/filedlg.mm
// Purpose:     wxFileDialog for wxCocoa
// Author:      Ryan Norton
// Modified by:
// Created:     2004-10-02
// RCS-ID:      $Id$
// Copyright:   (c) Ryan Norton
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#if wxUSE_FILEDLG

#include "wx/filedlg.h"

#ifndef WX_PRECOMP
    #include "wx/msgdlg.h"
    #include "wx/app.h"
    #include "wx/sizer.h"
    #include "wx/stattext.h"
    #include "wx/choice.h"
#endif

#include "wx/filename.h"
#include "wx/tokenzr.h"
#include "wx/evtloop.h"

#include "wx/osx/private.h"
#include "wx/sysopt.h"
#include "wx/testing.h"

#include <mach-o/dyld.h>

// ============================================================================
// implementation
// ============================================================================

// Open Items:
// - parameter support for descending into packages as directories (setTreatsFilePackagesAsDirectories)
// - as setAllowedFileTypes is only functional for NSOpenPanel on 10.6+, on earlier systems, the file
// type choice will not be shown, but all possible file items will be shown, if a popup must be working
// then the delegate method - (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename will have to
// be implemented

namespace
{

bool HasAppKit_10_6()
{
    // Even if we require 10.6, we might be loaded by an application that
    // was linked against 10.5.  setAllowedFileTypes will still be ignored
    // in this case.  From NSSavePanel.h:
    // NSOpenPanel: On versions less than 10.6, this property is ignored.
    // For applications that link against 10.6 and higher, this property will
    // determine which files should be enabled in the open panel.
    int32_t version = NSVersionOfLinkTimeLibrary("AppKit");
    if (version == -1)
    {
        // If we're loaded by an application that doesn't link against AppKit,
        // use the runtime version instead.  This check will not work for the
        // case above.
        version = NSVersionOfRunTimeLibrary("AppKit");
    }

    // Notice that this still works correctly even if version is -1.
    return version >= 0x40e2400 /* version of 10.6 AppKit */;
}

} // anonymous namespace

@interface wxOpenPanelDelegate : NSObject wxOSX_10_6_AND_LATER(<NSOpenSavePanelDelegate>)
{
    wxFileDialog* _dialog;
}

- (wxFileDialog*) fileDialog;
- (void) setFileDialog:(wxFileDialog*) dialog;

- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename;

@end

@implementation wxOpenPanelDelegate

- (id) init
{
    self = [super init];
    _dialog = NULL;
    return self;
}

- (wxFileDialog*) fileDialog
{
    return _dialog;
}

- (void) setFileDialog:(wxFileDialog*) dialog
{
    _dialog = dialog;
}

- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename
{
    BOOL showObject = YES;

    NSString* resolvedLink = [[NSFileManager defaultManager] pathContentOfSymbolicLinkAtPath:filename];
    if ( resolvedLink != nil )
        filename = resolvedLink;

    NSDictionary* fileAttribs = [[NSFileManager defaultManager]
                                 fileAttributesAtPath:filename traverseLink:YES];
    if (fileAttribs)
    {
        // check for packages
        if ([NSFileTypeDirectory isEqualTo:[fileAttribs objectForKey:NSFileType]])
        {
            if ([[NSWorkspace sharedWorkspace] isFilePackageAtPath:filename] == NO)
                showObject = YES;    // it's a folder, OK to show
            else
            {
                // it's a packaged directory, apply check
                wxCFStringRef filecf([filename retain]);
                showObject = _dialog->CheckFile(filecf.AsString());
            }
        }
        else
        {
            // the code above only solves links, not aliases, do this here:

            NSString* resolvedAlias = nil;

            CFURLRef url = CFURLCreateWithFileSystemPath (kCFAllocatorDefault,
                                                          (CFStringRef)filename,
                                                          kCFURLPOSIXPathStyle,
                                                          NO);
            if (url != NULL)
            {
                FSRef fsRef;
                if (CFURLGetFSRef(url, &fsRef))
                {
                    Boolean targetIsFolder, wasAliased;
                    OSErr err = FSResolveAliasFile (&fsRef, true, &targetIsFolder, &wasAliased);

                    if ((err == noErr) && wasAliased)
                    {
                        CFURLRef resolvedUrl = CFURLCreateFromFSRef(kCFAllocatorDefault,  &fsRef);
                        if (resolvedUrl != NULL)
                        {
                            resolvedAlias = (NSString*) CFURLCopyFileSystemPath(resolvedUrl,
                                                                               kCFURLPOSIXPathStyle);
                            CFRelease(resolvedUrl);
                        }
                    }
                }
                CFRelease(url);
            }

            if (resolvedAlias != nil)
            {
                // recursive call
                [resolvedAlias autorelease];
                showObject = [self panel:sender shouldShowFilename:resolvedAlias];
            }
            else
            {
                wxCFStringRef filecf([filename retain]);
                showObject = _dialog->CheckFile(filecf.AsString());
            }
        }
    }

    return showObject;
}

@end

IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase)

wxFileDialog::wxFileDialog(
    wxWindow *parent, const wxString& message,
    const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
    long style, const wxPoint& pos, const wxSize& sz, const wxString& name)
    : wxFileDialogBase(parent, message, defaultDir, defaultFileName, wildCard, style, pos, sz, name)
{
    m_filterIndex = -1;
    m_sheetDelegate = [[ModalDialogDelegate alloc] init];
    [(ModalDialogDelegate*)m_sheetDelegate setImplementation: this];
}

wxFileDialog::~wxFileDialog()
{
    [m_sheetDelegate release];
}

bool wxFileDialog::SupportsExtraControl() const
{
    return true;
}

NSArray* GetTypesFromExtension( const wxString extensiongroup, wxArrayString& extensions )
{
    NSMutableArray* types = nil;
    extensions.Clear();

    wxStringTokenizer tokenizer( extensiongroup, wxT(";") ) ;
    while ( tokenizer.HasMoreTokens() )
    {
        wxString extension = tokenizer.GetNextToken() ;
        // Remove leading '*'
        if ( extension.length() && (extension.GetChar(0) == '*') )
            extension = extension.Mid( 1 );

        // Remove leading '.'
        if ( extension.length() && (extension.GetChar(0) == '.') )
            extension = extension.Mid( 1 );

        // Remove leading '*', this is for handling *.*
        if ( extension.length() && (extension.GetChar(0) == '*') )
            extension = extension.Mid( 1 );

        if ( extension.IsEmpty() )
        {
            extensions.Clear();
            [types release];
            types = nil;
            return nil;
        }

        if ( types == nil )
            types = [[NSMutableArray alloc] init];

        extensions.Add(extension.Lower());
        wxCFStringRef cfext(extension);
        [types addObject: (NSString*)cfext.AsNSString()  ];
#if 0
        // add support for classic fileType / creator here
        wxUint32 fileType, creator;
        // extension -> mactypes
#endif
    }
    [types autorelease];
    return types;
}

NSArray* GetTypesFromFilter( const wxString& filter, wxArrayString& names, wxArrayString& extensiongroups )
{
    NSMutableArray* types = nil;
    bool allowAll = false;

    names.Clear();
    extensiongroups.Clear();

    if ( !filter.empty() )
    {
        wxStringTokenizer tokenizer( filter, wxT("|") );
        int numtokens = (int)tokenizer.CountTokens();
        if(numtokens == 1)
        {
            // we allow for compatibility reason to have a single filter expression (like *.*) without
            // an explanatory text, in that case the first part is name and extension at the same time
            wxString extension = tokenizer.GetNextToken();
            names.Add( extension );
            extensiongroups.Add( extension );
        }
        else
        {
            int numextensions = numtokens / 2;
            for(int i = 0; i < numextensions; i++)
            {
                wxString name = tokenizer.GetNextToken();
                wxString extension = tokenizer.GetNextToken();
                names.Add( name );
                extensiongroups.Add( extension );
            }
        }

        const size_t extCount = extensiongroups.GetCount();
        wxArrayString extensions;
        for ( size_t i = 0 ; i < extCount; i++ )
        {
            NSArray* exttypes = GetTypesFromExtension(extensiongroups[i], extensions);
            if ( exttypes != nil )
            {
                if ( allowAll == false )
                {
                    if ( types == nil )
                        types = [[NSMutableArray alloc] init];

                    [types addObjectsFromArray:exttypes];
                }
            }
            else
            {
                allowAll = true;
                [types release];
                types = nil;
            }
        }
    }
    [types autorelease];
    return types;
}

void wxFileDialog::ShowWindowModal()
{
    wxCFStringRef cf( m_message );
    wxCFStringRef dir( m_dir );
    wxCFStringRef file( m_fileName );

    wxNonOwnedWindow* parentWindow = NULL;

    m_modality = wxDIALOG_MODALITY_WINDOW_MODAL;

    if (GetParent())
        parentWindow = dynamic_cast<wxNonOwnedWindow*>(wxGetTopLevelParent(GetParent()));

    wxASSERT_MSG(parentWindow, "Window modal display requires parent.");

    NSArray* types = GetTypesFromFilter( m_wildCard, m_filterNames, m_filterExtensions ) ;
    if ( HasFlag(wxFD_SAVE) )
    {
        NSSavePanel* sPanel = [NSSavePanel savePanel];

        SetupExtraControls(sPanel);

        // makes things more convenient:
        [sPanel setCanCreateDirectories:YES];
        [sPanel setMessage:cf.AsNSString()];
        // if we should be able to descend into pacakges we must somehow
        // be able to pass this in
        [sPanel setTreatsFilePackagesAsDirectories:NO];
        [sPanel setCanSelectHiddenExtension:YES];
        [sPanel setAllowedFileTypes:types];
        [sPanel setAllowsOtherFileTypes:NO];

        NSWindow* nativeParent = parentWindow->GetWXWindow();
        [sPanel beginSheetForDirectory:dir.AsNSString() file:file.AsNSString()
            modalForWindow: nativeParent modalDelegate: m_sheetDelegate
            didEndSelector: @selector(sheetDidEnd:returnCode:contextInfo:)
            contextInfo: nil];
    }
    else
    {
        NSOpenPanel* oPanel = [NSOpenPanel openPanel];

        SetupExtraControls(oPanel);

        [oPanel setTreatsFilePackagesAsDirectories:NO];
        [oPanel setCanChooseDirectories:NO];
        [oPanel setResolvesAliases:YES];
        [oPanel setCanChooseFiles:YES];
        [oPanel setMessage:cf.AsNSString()];
        [oPanel setAllowsMultipleSelection: (HasFlag(wxFD_MULTIPLE) ? YES : NO )];

        NSWindow* nativeParent = parentWindow->GetWXWindow();
        [oPanel beginSheetForDirectory:dir.AsNSString() file:file.AsNSString()
            types: types modalForWindow: nativeParent
            modalDelegate: m_sheetDelegate
            didEndSelector: @selector(sheetDidEnd:returnCode:contextInfo:)
            contextInfo: nil];
    }
}

// Create a panel with the file type drop down list
// If extra controls need to be added (see wxFileDialog::SetExtraControlCreator), add
// them to the panel as well
// Returns the newly created wxPanel

wxWindow* wxFileDialog::CreateFilterPanel(wxWindow *extracontrol)
{
    wxPanel *extrapanel = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize);
    wxBoxSizer *verticalSizer = new wxBoxSizer(wxVERTICAL);
    extrapanel->SetSizer(verticalSizer);

    // the file type control
    {
        wxBoxSizer *horizontalSizer = new wxBoxSizer(wxHORIZONTAL);
        verticalSizer->Add(horizontalSizer, 0, wxEXPAND, 0);
        wxStaticText *stattext = new wxStaticText( extrapanel, wxID_ANY, _("File type:") );
        horizontalSizer->Add(stattext, 0, wxALIGN_CENTER_VERTICAL|wxALL, 5);
        m_filterChoice = new wxChoice(extrapanel, wxID_ANY);
        horizontalSizer->Add(m_filterChoice, 1, wxALIGN_CENTER_VERTICAL|wxALL, 5);
        m_filterChoice->Append(m_filterNames);
        if( m_filterNames.GetCount() > 0)
        {
            if ( m_firstFileTypeFilter >= 0 )
                m_filterChoice->SetSelection(m_firstFileTypeFilter);
        }
        m_filterChoice->Connect(wxEVT_COMMAND_CHOICE_SELECTED, wxCommandEventHandler(wxFileDialog::OnFilterSelected), NULL, this);
    }

    if(extracontrol)
    {
        wxBoxSizer *horizontalSizer = new wxBoxSizer(wxHORIZONTAL);
        verticalSizer->Add(horizontalSizer, 0, wxEXPAND, 0);

        extracontrol->Reparent(extrapanel);
        horizontalSizer->Add(extracontrol);
    }

    verticalSizer->Layout();
    verticalSizer->SetSizeHints(extrapanel);
    return extrapanel;
}

void wxFileDialog::DoOnFilterSelected(int index)
{
    NSArray* types = GetTypesFromExtension(m_filterExtensions[index],m_currentExtensions);
    NSSavePanel* panel = (NSSavePanel*) GetWXWindow();
    if ( m_delegate )
        [panel validateVisibleColumns];
    else
        [panel setAllowedFileTypes:types];
}

// An item has been selected in the file filter wxChoice:
void wxFileDialog::OnFilterSelected( wxCommandEvent &WXUNUSED(event) )
{
    DoOnFilterSelected( m_filterChoice->GetSelection() );
}

bool wxFileDialog::CheckFile( const wxString& filename )
{
    if ( m_currentExtensions.GetCount() == 0 )
        return true;

    wxString ext = filename.AfterLast('.').Lower();

    for ( size_t i = 0; i < m_currentExtensions.GetCount(); ++i )
    {
        if ( ext == m_currentExtensions[i] )
            return true;
    }
    return false;
}

void wxFileDialog::SetupExtraControls(WXWindow nativeWindow)
{
    NSSavePanel* panel = (NSSavePanel*) nativeWindow;

    wxNonOwnedWindow::Create( GetParent(), nativeWindow );
    wxWindow* extracontrol = NULL;
    if ( HasExtraControlCreator() )
    {
        CreateExtraControl();
        extracontrol = GetExtraControl();
    }

    NSView* accView = nil;
    m_delegate = nil;

    if ( m_useFileTypeFilter )
    {
        m_filterPanel = CreateFilterPanel(extracontrol);
        accView = m_filterPanel->GetHandle();
        if( HasFlag(wxFD_OPEN) )
        {
            if ( UMAGetSystemVersion() < 0x1060 || !HasAppKit_10_6() )
            {
                wxOpenPanelDelegate* del = [[wxOpenPanelDelegate alloc]init];
                [del setFileDialog:this];
                [panel setDelegate:del];
                m_delegate = del;
            }
        }
    }
    else
    {
        m_filterPanel = NULL;
        m_filterChoice = NULL;
        if ( extracontrol != nil )
            accView = extracontrol->GetHandle();
    }

    if ( accView != nil )
    {
        [accView removeFromSuperview];
        [panel setAccessoryView:accView];
    }
    else
    {
        [panel setAccessoryView:nil];
    }
}

int wxFileDialog::ShowModal()
{
    WX_TESTING_SHOW_MODAL_HOOK();

    wxCFEventLoopPauseIdleEvents pause;

    wxMacAutoreleasePool autoreleasepool;

    wxCFStringRef cf( m_message );

    wxCFStringRef dir( m_dir );
    wxCFStringRef file( m_fileName );

    m_path = wxEmptyString;
    m_fileNames.Clear();
    m_paths.Clear();

    wxNonOwnedWindow* parentWindow = NULL;
    int returnCode = -1;

    if (GetParent())
    {
        parentWindow = dynamic_cast<wxNonOwnedWindow*>(wxGetTopLevelParent(GetParent()));
    }


    NSArray* types = GetTypesFromFilter( m_wildCard, m_filterNames, m_filterExtensions ) ;

    m_useFileTypeFilter = m_filterExtensions.GetCount() > 1;

    if( HasFlag(wxFD_OPEN) )
    {
        if ( !(wxSystemOptions::HasOption( wxOSX_FILEDIALOG_ALWAYS_SHOW_TYPES ) && (wxSystemOptions::GetOptionInt( wxOSX_FILEDIALOG_ALWAYS_SHOW_TYPES ) == 1)) )
            m_useFileTypeFilter = false;
    }

    m_firstFileTypeFilter = -1;

    if ( m_useFileTypeFilter
        && m_filterIndex >= 0 && m_filterIndex < m_filterExtensions.GetCount() )
    {
        m_firstFileTypeFilter = m_filterIndex;
    }
    else if ( m_useFileTypeFilter )
    {
        types = nil;
        bool useDefault = true;
        for ( size_t i = 0; i < m_filterExtensions.GetCount(); ++i )
        {
            types = GetTypesFromExtension(m_filterExtensions[i], m_currentExtensions);
            if ( m_currentExtensions.GetCount() == 0 )
            {
                useDefault = false;
                m_firstFileTypeFilter = i;
                break;
            }

            for ( size_t j = 0; j < m_currentExtensions.GetCount(); ++j )
            {
                if ( m_fileName.EndsWith(m_currentExtensions[j]) )
                {
                    m_firstFileTypeFilter = i;
                    useDefault = false;
                    break;
                }
            }
            if ( !useDefault )
                break;
        }
        if ( useDefault )
        {
            types = GetTypesFromExtension(m_filterExtensions[0], m_currentExtensions);
            m_firstFileTypeFilter = 0;
        }
    }

    if ( HasFlag(wxFD_SAVE) )
    {
        NSSavePanel* sPanel = [NSSavePanel savePanel];

        SetupExtraControls(sPanel);

        // makes things more convenient:
        [sPanel setCanCreateDirectories:YES];
        [sPanel setMessage:cf.AsNSString()];
        // if we should be able to descend into pacakges we must somehow
        // be able to pass this in
        [sPanel setTreatsFilePackagesAsDirectories:NO];
        [sPanel setCanSelectHiddenExtension:YES];
        [sPanel setAllowedFileTypes:types];
        [sPanel setAllowsOtherFileTypes:NO];

        if ( HasFlag(wxFD_OVERWRITE_PROMPT) )
        {
        }

        /*
        Let the file dialog know what file type should be used initially.
        If this is not done then when setting the filter index
        programmatically to 1 the file will still have the extension
        of the first file type instead of the second one. E.g. when file
        types are foo and bar, a filename "myletter" with SetDialogIndex(1)
        would result in saving as myletter.foo, while we want myletter.bar.
        */
        if(m_firstFileTypeFilter > 0)
        {
            DoOnFilterSelected(m_firstFileTypeFilter);
        }

        returnCode = [sPanel runModalForDirectory: m_dir.IsEmpty() ? nil : dir.AsNSString() file:file.AsNSString() ];
        ModalFinishedCallback(sPanel, returnCode);
    }
    else
    {
        NSOpenPanel* oPanel = [NSOpenPanel openPanel];

        SetupExtraControls(oPanel);

        [oPanel setTreatsFilePackagesAsDirectories:NO];
        [oPanel setCanChooseDirectories:NO];
        [oPanel setResolvesAliases:YES];
        [oPanel setCanChooseFiles:YES];
        [oPanel setMessage:cf.AsNSString()];
        [oPanel setAllowsMultipleSelection: (HasFlag(wxFD_MULTIPLE) ? YES : NO )];

#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
        if ( UMAGetSystemVersion() >= 0x1060 && HasAppKit_10_6() )
        {
            [oPanel setAllowedFileTypes: (m_delegate == nil ? types : nil)];
            if ( !m_dir.IsEmpty() )
                [oPanel setDirectoryURL:[NSURL fileURLWithPath:dir.AsNSString()
                                                   isDirectory:YES]];
            returnCode = [oPanel runModal];
        }
        else
#endif
        {
            returnCode = [oPanel runModalForDirectory:m_dir.IsEmpty() ? nil : dir.AsNSString()
                                                 file:file.AsNSString() types:(m_delegate == nil ? types : nil)];
        }

        ModalFinishedCallback(oPanel, returnCode);
    }

    return GetReturnCode();
}

void wxFileDialog::ModalFinishedCallback(void* panel, int returnCode)
{
    int result = wxID_CANCEL;
    if (HasFlag(wxFD_SAVE))
    {
        if (returnCode == NSOKButton )
        {
            NSSavePanel* sPanel = (NSSavePanel*)panel;
            result = wxID_OK;

            m_path = wxCFStringRef::AsString([sPanel filename]);
            m_fileName = wxFileNameFromPath(m_path);
            m_dir = wxPathOnly( m_path );
            if (m_filterChoice)
            {
                m_filterIndex = m_filterChoice->GetSelection();
            }
        }
    }
    else
    {
        NSOpenPanel* oPanel = (NSOpenPanel*)panel;
        if (returnCode == NSOKButton )
        {
            panel = oPanel;
            result = wxID_OK;
            NSArray* filenames = [oPanel filenames];
            for ( size_t i = 0 ; i < [filenames count] ; ++ i )
            {
                wxString fnstr = wxCFStringRef::AsString([filenames objectAtIndex:i]);
                m_paths.Add( fnstr );
                m_fileNames.Add( wxFileNameFromPath(fnstr) );
                if ( i == 0 )
                {
                    m_path = fnstr;
                    m_fileName = wxFileNameFromPath(fnstr);
                    m_dir = wxPathOnly( fnstr );
                }
            }
        }
        if ( m_delegate )
        {
            [oPanel setDelegate:nil];
            [m_delegate release];
            m_delegate = nil;
        }
    }
    SetReturnCode(result);

    if (GetModality() == wxDIALOG_MODALITY_WINDOW_MODAL)
        SendWindowModalDialogEvent ( wxEVT_WINDOW_MODAL_DIALOG_CLOSED  );

    UnsubclassWin();
    [(NSSavePanel*) panel setAccessoryView:nil];
}

#endif // wxUSE_FILEDLG
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/cocoa/filedlg.mm
	3	// Purpose: wxFileDialog for wxCocoa
	4	// Author: Ryan Norton
	5	// Modified by:
	6	// Created: 2004-10-02
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Ryan Norton
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// For compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#if wxUSE_FILEDLG
	24
	25	#include "wx/filedlg.h"
	26
	27	#ifndef WX_PRECOMP
	28	#include "wx/msgdlg.h"
	29	#include "wx/app.h"
	30	#include "wx/sizer.h"
	31	#include "wx/stattext.h"
	32	#include "wx/choice.h"
	33	#endif
	34
	35	#include "wx/filename.h"
	36	#include "wx/tokenzr.h"
	37	#include "wx/evtloop.h"
	38
	39	#include "wx/osx/private.h"
	40	#include "wx/sysopt.h"
	41	#include "wx/testing.h"
	42
	43	#include <mach-o/dyld.h>
	44
	45	// ============================================================================
	46	// implementation
	47	// ============================================================================
	48
	49	// Open Items:
	50	// - parameter support for descending into packages as directories (setTreatsFilePackagesAsDirectories)
	51	// - as setAllowedFileTypes is only functional for NSOpenPanel on 10.6+, on earlier systems, the file
	52	// type choice will not be shown, but all possible file items will be shown, if a popup must be working
	53	// then the delegate method - (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename will have to
	54	// be implemented
	55
	56	namespace
	57	{
	58
	59	bool HasAppKit_10_6()
	60	{
	61	// Even if we require 10.6, we might be loaded by an application that
	62	// was linked against 10.5. setAllowedFileTypes will still be ignored
	63	// in this case. From NSSavePanel.h:
	64	// NSOpenPanel: On versions less than 10.6, this property is ignored.
	65	// For applications that link against 10.6 and higher, this property will
	66	// determine which files should be enabled in the open panel.
	67	int32_t version = NSVersionOfLinkTimeLibrary("AppKit");
	68	if (version == -1)
	69	{
	70	// If we're loaded by an application that doesn't link against AppKit,
	71	// use the runtime version instead. This check will not work for the
	72	// case above.
	73	version = NSVersionOfRunTimeLibrary("AppKit");
	74	}
	75
	76	// Notice that this still works correctly even if version is -1.
	77	return version >= 0x40e2400 /* version of 10.6 AppKit */;
	78	}
	79
	80	} // anonymous namespace
	81
	82	@interface wxOpenPanelDelegate : NSObject wxOSX_10_6_AND_LATER(<NSOpenSavePanelDelegate>)
	83	{
	84	wxFileDialog* _dialog;
	85	}
	86
	87	- (wxFileDialog*) fileDialog;
	88	- (void) setFileDialog:(wxFileDialog*) dialog;
	89
	90	- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename;
	91
	92	@end
	93
	94	@implementation wxOpenPanelDelegate
	95
	96	- (id) init
	97	{
	98	self = [super init];
	99	_dialog = NULL;
	100	return self;
	101	}
	102
	103	- (wxFileDialog*) fileDialog
	104	{
	105	return _dialog;
	106	}
	107
	108	- (void) setFileDialog:(wxFileDialog*) dialog
	109	{
	110	_dialog = dialog;
	111	}
	112
	113	- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename
	114	{
	115	BOOL showObject = YES;
	116
	117	NSString* resolvedLink = [[NSFileManager defaultManager] pathContentOfSymbolicLinkAtPath:filename];
	118	if ( resolvedLink != nil )
	119	filename = resolvedLink;
	120
	121	NSDictionary* fileAttribs = [[NSFileManager defaultManager]
	122	fileAttributesAtPath:filename traverseLink:YES];
	123	if (fileAttribs)
	124	{
	125	// check for packages
	126	if ([NSFileTypeDirectory isEqualTo:[fileAttribs objectForKey:NSFileType]])
	127	{
	128	if ([[NSWorkspace sharedWorkspace] isFilePackageAtPath:filename] == NO)
	129	showObject = YES; // it's a folder, OK to show
	130	else
	131	{
	132	// it's a packaged directory, apply check
	133	wxCFStringRef filecf([filename retain]);
	134	showObject = _dialog->CheckFile(filecf.AsString());
	135	}
	136	}
	137	else
	138	{
	139	// the code above only solves links, not aliases, do this here:
	140
	141	NSString* resolvedAlias = nil;
	142
	143	CFURLRef url = CFURLCreateWithFileSystemPath (kCFAllocatorDefault,
	144	(CFStringRef)filename,
	145	kCFURLPOSIXPathStyle,
	146	NO);
	147	if (url != NULL)
	148	{
	149	FSRef fsRef;
	150	if (CFURLGetFSRef(url, &fsRef))
	151	{
	152	Boolean targetIsFolder, wasAliased;
	153	OSErr err = FSResolveAliasFile (&fsRef, true, &targetIsFolder, &wasAliased);
	154
	155	if ((err == noErr) && wasAliased)
	156	{
	157	CFURLRef resolvedUrl = CFURLCreateFromFSRef(kCFAllocatorDefault, &fsRef);
	158	if (resolvedUrl != NULL)
	159	{
	160	resolvedAlias = (NSString*) CFURLCopyFileSystemPath(resolvedUrl,
	161	kCFURLPOSIXPathStyle);
	162	CFRelease(resolvedUrl);
	163	}
	164	}
	165	}
	166	CFRelease(url);
	167	}
	168
	169	if (resolvedAlias != nil)
	170	{
	171	// recursive call
	172	[resolvedAlias autorelease];
	173	showObject = [self panel:sender shouldShowFilename:resolvedAlias];
	174	}
	175	else
	176	{
	177	wxCFStringRef filecf([filename retain]);
	178	showObject = _dialog->CheckFile(filecf.AsString());
	179	}
	180	}
	181	}
	182
	183	return showObject;
	184	}
	185
	186	@end
	187
	188	IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase)
	189
	190	wxFileDialog::wxFileDialog(
	191	wxWindow *parent, const wxString& message,
	192	const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
	193	long style, const wxPoint& pos, const wxSize& sz, const wxString& name)
	194	: wxFileDialogBase(parent, message, defaultDir, defaultFileName, wildCard, style, pos, sz, name)
	195	{
	196	m_filterIndex = -1;
	197	m_sheetDelegate = [[ModalDialogDelegate alloc] init];
	198	[(ModalDialogDelegate*)m_sheetDelegate setImplementation: this];
	199	}
	200
	201	wxFileDialog::~wxFileDialog()
	202	{
	203	[m_sheetDelegate release];
	204	}
	205
	206	bool wxFileDialog::SupportsExtraControl() const
	207	{
	208	return true;
	209	}
	210
	211	NSArray* GetTypesFromExtension( const wxString extensiongroup, wxArrayString& extensions )
	212	{
	213	NSMutableArray* types = nil;
	214	extensions.Clear();
	215
	216	wxStringTokenizer tokenizer( extensiongroup, wxT(";") ) ;
	217	while ( tokenizer.HasMoreTokens() )
	218	{
	219	wxString extension = tokenizer.GetNextToken() ;
	220	// Remove leading '*'
	221	if ( extension.length() && (extension.GetChar(0) == '*') )
	222	extension = extension.Mid( 1 );
	223
	224	// Remove leading '.'
	225	if ( extension.length() && (extension.GetChar(0) == '.') )
	226	extension = extension.Mid( 1 );
	227
	228	// Remove leading '', this is for handling .*
	229	if ( extension.length() && (extension.GetChar(0) == '*') )
	230	extension = extension.Mid( 1 );
	231
	232	if ( extension.IsEmpty() )
	233	{
	234	extensions.Clear();
	235	[types release];
	236	types = nil;
	237	return nil;
	238	}
	239
	240	if ( types == nil )
	241	types = [[NSMutableArray alloc] init];
	242
	243	extensions.Add(extension.Lower());
	244	wxCFStringRef cfext(extension);
	245	[types addObject: (NSString*)cfext.AsNSString() ];
	246	#if 0
	247	// add support for classic fileType / creator here
	248	wxUint32 fileType, creator;
	249	// extension -> mactypes
	250	#endif
	251	}
	252	[types autorelease];
	253	return types;
	254	}
	255
	256	NSArray* GetTypesFromFilter( const wxString& filter, wxArrayString& names, wxArrayString& extensiongroups )
	257	{
	258	NSMutableArray* types = nil;
	259	bool allowAll = false;
	260
	261	names.Clear();
	262	extensiongroups.Clear();
	263
	264	if ( !filter.empty() )
	265	{
	266	wxStringTokenizer tokenizer( filter, wxT("\|") );
	267	int numtokens = (int)tokenizer.CountTokens();
	268	if(numtokens == 1)
	269	{
	270	// we allow for compatibility reason to have a single filter expression (like .) without
	271	// an explanatory text, in that case the first part is name and extension at the same time
	272	wxString extension = tokenizer.GetNextToken();
	273	names.Add( extension );
	274	extensiongroups.Add( extension );
	275	}
	276	else
	277	{
	278	int numextensions = numtokens / 2;
	279	for(int i = 0; i < numextensions; i++)
	280	{
	281	wxString name = tokenizer.GetNextToken();
	282	wxString extension = tokenizer.GetNextToken();
	283	names.Add( name );
	284	extensiongroups.Add( extension );
	285	}
	286	}
	287
	288	const size_t extCount = extensiongroups.GetCount();
	289	wxArrayString extensions;
	290	for ( size_t i = 0 ; i < extCount; i++ )
	291	{
	292	NSArray* exttypes = GetTypesFromExtension(extensiongroups[i], extensions);
	293	if ( exttypes != nil )
	294	{
	295	if ( allowAll == false )
	296	{
	297	if ( types == nil )
	298	types = [[NSMutableArray alloc] init];
	299
	300	[types addObjectsFromArray:exttypes];
	301	}
	302	}
	303	else
	304	{
	305	allowAll = true;
	306	[types release];
	307	types = nil;
	308	}
	309	}
	310	}
	311	[types autorelease];
	312	return types;
	313	}
	314
	315	void wxFileDialog::ShowWindowModal()
	316	{
	317	wxCFStringRef cf( m_message );
	318	wxCFStringRef dir( m_dir );
	319	wxCFStringRef file( m_fileName );
	320
	321	wxNonOwnedWindow* parentWindow = NULL;
	322
	323	m_modality = wxDIALOG_MODALITY_WINDOW_MODAL;
	324
	325	if (GetParent())
	326	parentWindow = dynamic_cast<wxNonOwnedWindow*>(wxGetTopLevelParent(GetParent()));
	327
	328	wxASSERT_MSG(parentWindow, "Window modal display requires parent.");
	329
	330	NSArray* types = GetTypesFromFilter( m_wildCard, m_filterNames, m_filterExtensions ) ;
	331	if ( HasFlag(wxFD_SAVE) )
	332	{
	333	NSSavePanel* sPanel = [NSSavePanel savePanel];
	334
	335	SetupExtraControls(sPanel);
	336
	337	// makes things more convenient:
	338	[sPanel setCanCreateDirectories:YES];
	339	[sPanel setMessage:cf.AsNSString()];
	340	// if we should be able to descend into pacakges we must somehow
	341	// be able to pass this in
	342	[sPanel setTreatsFilePackagesAsDirectories:NO];
	343	[sPanel setCanSelectHiddenExtension:YES];
	344	[sPanel setAllowedFileTypes:types];
	345	[sPanel setAllowsOtherFileTypes:NO];
	346
	347	NSWindow* nativeParent = parentWindow->GetWXWindow();
	348	[sPanel beginSheetForDirectory:dir.AsNSString() file:file.AsNSString()
	349	modalForWindow: nativeParent modalDelegate: m_sheetDelegate
	350	didEndSelector: @selector(sheetDidEnd:returnCode:contextInfo:)
	351	contextInfo: nil];
	352	}
	353	else
	354	{
	355	NSOpenPanel* oPanel = [NSOpenPanel openPanel];
	356
	357	SetupExtraControls(oPanel);
	358
	359	[oPanel setTreatsFilePackagesAsDirectories:NO];
	360	[oPanel setCanChooseDirectories:NO];
	361	[oPanel setResolvesAliases:YES];
	362	[oPanel setCanChooseFiles:YES];
	363	[oPanel setMessage:cf.AsNSString()];
	364	[oPanel setAllowsMultipleSelection: (HasFlag(wxFD_MULTIPLE) ? YES : NO )];
	365
	366	NSWindow* nativeParent = parentWindow->GetWXWindow();
	367	[oPanel beginSheetForDirectory:dir.AsNSString() file:file.AsNSString()
	368	types: types modalForWindow: nativeParent
	369	modalDelegate: m_sheetDelegate
	370	didEndSelector: @selector(sheetDidEnd:returnCode:contextInfo:)
	371	contextInfo: nil];
	372	}
	373	}
	374
	375	// Create a panel with the file type drop down list
	376	// If extra controls need to be added (see wxFileDialog::SetExtraControlCreator), add
	377	// them to the panel as well
	378	// Returns the newly created wxPanel
	379
	380	wxWindow* wxFileDialog::CreateFilterPanel(wxWindow *extracontrol)
	381	{
	382	wxPanel *extrapanel = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize);
	383	wxBoxSizer *verticalSizer = new wxBoxSizer(wxVERTICAL);
	384	extrapanel->SetSizer(verticalSizer);
	385
	386	// the file type control
	387	{
	388	wxBoxSizer *horizontalSizer = new wxBoxSizer(wxHORIZONTAL);
	389	verticalSizer->Add(horizontalSizer, 0, wxEXPAND, 0);
	390	wxStaticText *stattext = new wxStaticText( extrapanel, wxID_ANY, _("File type:") );
	391	horizontalSizer->Add(stattext, 0, wxALIGN_CENTER_VERTICAL\|wxALL, 5);
	392	m_filterChoice = new wxChoice(extrapanel, wxID_ANY);
	393	horizontalSizer->Add(m_filterChoice, 1, wxALIGN_CENTER_VERTICAL\|wxALL, 5);
	394	m_filterChoice->Append(m_filterNames);
	395	if( m_filterNames.GetCount() > 0)
	396	{
	397	if ( m_firstFileTypeFilter >= 0 )
	398	m_filterChoice->SetSelection(m_firstFileTypeFilter);
	399	}
	400	m_filterChoice->Connect(wxEVT_COMMAND_CHOICE_SELECTED, wxCommandEventHandler(wxFileDialog::OnFilterSelected), NULL, this);
	401	}
	402
	403	if(extracontrol)
	404	{
	405	wxBoxSizer *horizontalSizer = new wxBoxSizer(wxHORIZONTAL);
	406	verticalSizer->Add(horizontalSizer, 0, wxEXPAND, 0);
	407
	408	extracontrol->Reparent(extrapanel);
	409	horizontalSizer->Add(extracontrol);
	410	}
	411
	412	verticalSizer->Layout();
	413	verticalSizer->SetSizeHints(extrapanel);
	414	return extrapanel;
	415	}
	416
	417	void wxFileDialog::DoOnFilterSelected(int index)
	418	{
	419	NSArray* types = GetTypesFromExtension(m_filterExtensions[index],m_currentExtensions);
	420	NSSavePanel* panel = (NSSavePanel*) GetWXWindow();
	421	if ( m_delegate )
	422	[panel validateVisibleColumns];
	423	else
	424	[panel setAllowedFileTypes:types];
	425	}
	426
	427	// An item has been selected in the file filter wxChoice:
	428	void wxFileDialog::OnFilterSelected( wxCommandEvent &WXUNUSED(event) )
	429	{
	430	DoOnFilterSelected( m_filterChoice->GetSelection() );
	431	}
	432
	433	bool wxFileDialog::CheckFile( const wxString& filename )
	434	{
	435	if ( m_currentExtensions.GetCount() == 0 )
	436	return true;
	437
	438	wxString ext = filename.AfterLast('.').Lower();
	439
	440	for ( size_t i = 0; i < m_currentExtensions.GetCount(); ++i )
	441	{
	442	if ( ext == m_currentExtensions[i] )
	443	return true;
	444	}
	445	return false;
	446	}
	447
	448	void wxFileDialog::SetupExtraControls(WXWindow nativeWindow)
	449	{
	450	NSSavePanel* panel = (NSSavePanel*) nativeWindow;
	451
	452	wxNonOwnedWindow::Create( GetParent(), nativeWindow );
	453	wxWindow* extracontrol = NULL;
	454	if ( HasExtraControlCreator() )
	455	{
	456	CreateExtraControl();
	457	extracontrol = GetExtraControl();
	458	}
	459
	460	NSView* accView = nil;
	461	m_delegate = nil;
	462
	463	if ( m_useFileTypeFilter )
	464	{
	465	m_filterPanel = CreateFilterPanel(extracontrol);
	466	accView = m_filterPanel->GetHandle();
	467	if( HasFlag(wxFD_OPEN) )
	468	{
	469	if ( UMAGetSystemVersion() < 0x1060 \|\| !HasAppKit_10_6() )
	470	{
	471	wxOpenPanelDelegate* del = [[wxOpenPanelDelegate alloc]init];
	472	[del setFileDialog:this];
	473	[panel setDelegate:del];
	474	m_delegate = del;
	475	}
	476	}
	477	}
	478	else
	479	{
	480	m_filterPanel = NULL;
	481	m_filterChoice = NULL;
	482	if ( extracontrol != nil )
	483	accView = extracontrol->GetHandle();
	484	}
	485
	486	if ( accView != nil )
	487	{
	488	[accView removeFromSuperview];
	489	[panel setAccessoryView:accView];
	490	}
	491	else
	492	{
	493	[panel setAccessoryView:nil];
	494	}
	495	}
	496
	497	int wxFileDialog::ShowModal()
	498	{
	499	WX_TESTING_SHOW_MODAL_HOOK();
	500
	501	wxCFEventLoopPauseIdleEvents pause;
	502
	503	wxMacAutoreleasePool autoreleasepool;
	504
	505	wxCFStringRef cf( m_message );
	506
	507	wxCFStringRef dir( m_dir );
	508	wxCFStringRef file( m_fileName );
	509
	510	m_path = wxEmptyString;
	511	m_fileNames.Clear();
	512	m_paths.Clear();
	513
	514	wxNonOwnedWindow* parentWindow = NULL;
	515	int returnCode = -1;
	516
	517	if (GetParent())
	518	{
	519	parentWindow = dynamic_cast<wxNonOwnedWindow*>(wxGetTopLevelParent(GetParent()));
	520	}
	521
	522
	523	NSArray* types = GetTypesFromFilter( m_wildCard, m_filterNames, m_filterExtensions ) ;
	524
	525	m_useFileTypeFilter = m_filterExtensions.GetCount() > 1;
	526
	527	if( HasFlag(wxFD_OPEN) )
	528	{
	529	if ( !(wxSystemOptions::HasOption( wxOSX_FILEDIALOG_ALWAYS_SHOW_TYPES ) && (wxSystemOptions::GetOptionInt( wxOSX_FILEDIALOG_ALWAYS_SHOW_TYPES ) == 1)) )
	530	m_useFileTypeFilter = false;
	531	}
	532
	533	m_firstFileTypeFilter = -1;
	534
	535	if ( m_useFileTypeFilter
	536	&& m_filterIndex >= 0 && m_filterIndex < m_filterExtensions.GetCount() )
	537	{
	538	m_firstFileTypeFilter = m_filterIndex;
	539	}
	540	else if ( m_useFileTypeFilter )
	541	{
	542	types = nil;
	543	bool useDefault = true;
	544	for ( size_t i = 0; i < m_filterExtensions.GetCount(); ++i )
	545	{
	546	types = GetTypesFromExtension(m_filterExtensions[i], m_currentExtensions);
	547	if ( m_currentExtensions.GetCount() == 0 )
	548	{
	549	useDefault = false;
	550	m_firstFileTypeFilter = i;
	551	break;
	552	}
	553
	554	for ( size_t j = 0; j < m_currentExtensions.GetCount(); ++j )
	555	{
	556	if ( m_fileName.EndsWith(m_currentExtensions[j]) )
	557	{
	558	m_firstFileTypeFilter = i;
	559	useDefault = false;
	560	break;
	561	}
	562	}
	563	if ( !useDefault )
	564	break;
	565	}
	566	if ( useDefault )
	567	{
	568	types = GetTypesFromExtension(m_filterExtensions[0], m_currentExtensions);
	569	m_firstFileTypeFilter = 0;
	570	}
	571	}
	572
	573	if ( HasFlag(wxFD_SAVE) )
	574	{
	575	NSSavePanel* sPanel = [NSSavePanel savePanel];
	576
	577	SetupExtraControls(sPanel);
	578
	579	// makes things more convenient:
	580	[sPanel setCanCreateDirectories:YES];
	581	[sPanel setMessage:cf.AsNSString()];
	582	// if we should be able to descend into pacakges we must somehow
	583	// be able to pass this in
	584	[sPanel setTreatsFilePackagesAsDirectories:NO];
	585	[sPanel setCanSelectHiddenExtension:YES];
	586	[sPanel setAllowedFileTypes:types];
	587	[sPanel setAllowsOtherFileTypes:NO];
	588
	589	if ( HasFlag(wxFD_OVERWRITE_PROMPT) )
	590	{
	591	}
	592
	593	/*
	594	Let the file dialog know what file type should be used initially.
	595	If this is not done then when setting the filter index
	596	programmatically to 1 the file will still have the extension
	597	of the first file type instead of the second one. E.g. when file
	598	types are foo and bar, a filename "myletter" with SetDialogIndex(1)
	599	would result in saving as myletter.foo, while we want myletter.bar.
	600	*/
	601	if(m_firstFileTypeFilter > 0)
	602	{
	603	DoOnFilterSelected(m_firstFileTypeFilter);
	604	}
	605
	606	returnCode = [sPanel runModalForDirectory: m_dir.IsEmpty() ? nil : dir.AsNSString() file:file.AsNSString() ];
	607	ModalFinishedCallback(sPanel, returnCode);
	608	}
	609	else
	610	{
	611	NSOpenPanel* oPanel = [NSOpenPanel openPanel];
	612
	613	SetupExtraControls(oPanel);
	614
	615	[oPanel setTreatsFilePackagesAsDirectories:NO];
	616	[oPanel setCanChooseDirectories:NO];
	617	[oPanel setResolvesAliases:YES];
	618	[oPanel setCanChooseFiles:YES];
	619	[oPanel setMessage:cf.AsNSString()];
	620	[oPanel setAllowsMultipleSelection: (HasFlag(wxFD_MULTIPLE) ? YES : NO )];
	621
	622	#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
	623	if ( UMAGetSystemVersion() >= 0x1060 && HasAppKit_10_6() )
	624	{
	625	[oPanel setAllowedFileTypes: (m_delegate == nil ? types : nil)];
	626	if ( !m_dir.IsEmpty() )
	627	[oPanel setDirectoryURL:[NSURL fileURLWithPath:dir.AsNSString()
	628	isDirectory:YES]];
	629	returnCode = [oPanel runModal];
	630	}
	631	else
	632	#endif
	633	{
	634	returnCode = [oPanel runModalForDirectory:m_dir.IsEmpty() ? nil : dir.AsNSString()
	635	file:file.AsNSString() types:(m_delegate == nil ? types : nil)];
	636	}
	637
	638	ModalFinishedCallback(oPanel, returnCode);
	639	}
	640
	641	return GetReturnCode();
	642	}
	643
	644	void wxFileDialog::ModalFinishedCallback(void* panel, int returnCode)
	645	{
	646	int result = wxID_CANCEL;
	647	if (HasFlag(wxFD_SAVE))
	648	{
	649	if (returnCode == NSOKButton )
	650	{
	651	NSSavePanel* sPanel = (NSSavePanel*)panel;
	652	result = wxID_OK;
	653
	654	m_path = wxCFStringRef::AsString([sPanel filename]);
	655	m_fileName = wxFileNameFromPath(m_path);
	656	m_dir = wxPathOnly( m_path );
	657	if (m_filterChoice)
	658	{
	659	m_filterIndex = m_filterChoice->GetSelection();
	660	}
	661	}
	662	}
	663	else
	664	{
	665	NSOpenPanel* oPanel = (NSOpenPanel*)panel;
	666	if (returnCode == NSOKButton )
	667	{
	668	panel = oPanel;
	669	result = wxID_OK;
	670	NSArray* filenames = [oPanel filenames];
	671	for ( size_t i = 0 ; i < [filenames count] ; ++ i )
	672	{
	673	wxString fnstr = wxCFStringRef::AsString([filenames objectAtIndex:i]);
	674	m_paths.Add( fnstr );
	675	m_fileNames.Add( wxFileNameFromPath(fnstr) );
	676	if ( i == 0 )
	677	{
	678	m_path = fnstr;
	679	m_fileName = wxFileNameFromPath(fnstr);
	680	m_dir = wxPathOnly( fnstr );
	681	}
	682	}
	683	}
	684	if ( m_delegate )
	685	{
	686	[oPanel setDelegate:nil];
	687	[m_delegate release];
	688	m_delegate = nil;
	689	}
	690	}
	691	SetReturnCode(result);
	692
	693	if (GetModality() == wxDIALOG_MODALITY_WINDOW_MODAL)
	694	SendWindowModalDialogEvent ( wxEVT_WINDOW_MODAL_DIALOG_CLOSED );
	695
	696	UnsubclassWin();
	697	[(NSSavePanel*) panel setAccessoryView:nil];
	698	}
	699
	700	#endif // wxUSE_FILEDLG