src/gtk/filedlg.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/gtk/filedlg.cpp
// Purpose:     native implementation of wxFileDialog
// Author:      Robert Roebling, Zbigniew Zagorski, Mart Raudsepp
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski, 2005 Mart Raudsepp
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#if wxUSE_FILEDLG

#include "wx/filedlg.h"

#ifndef WX_PRECOMP
    #include "wx/intl.h"
    #include "wx/msgdlg.h"
#endif

#include <gtk/gtk.h>
#include "wx/gtk/private.h"

#ifdef __UNIX__
#include <unistd.h> // chdir
#endif

#include "wx/filename.h" // wxFilename
#include "wx/tokenzr.h" // wxStringTokenizer
#include "wx/filefn.h" // ::wxGetCwd
#include "wx/modalhook.h"

//-----------------------------------------------------------------------------
// "clicked" for OK-button
//-----------------------------------------------------------------------------

extern "C" {
static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
{
    int style = dialog->GetWindowStyle();
    wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));

    // gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
#ifndef __WXGTK3__
#if GTK_CHECK_VERSION(2,7,3)
    if (gtk_check_version(2, 7, 3) != NULL)
#endif
    {
        if ((style & wxFD_SAVE) && (style & wxFD_OVERWRITE_PROMPT))
        {
            if ( g_file_test(filename, G_FILE_TEST_EXISTS) )
            {
                wxString msg;

                msg.Printf(
                    _("File '%s' already exists, do you really want to overwrite it?"),
                    wxString::FromUTF8(filename));

                wxMessageDialog dlg(dialog, msg, _("Confirm"),
                                   wxYES_NO | wxICON_QUESTION);
                if (dlg.ShowModal() != wxID_YES)
                    return;
            }
        }
    }
#endif

    if (style & wxFD_FILE_MUST_EXIST)
    {
        if ( !g_file_test(filename, G_FILE_TEST_EXISTS) )
        {
            wxMessageDialog dlg( dialog, _("Please choose an existing file."),
                                 _("Error"), wxOK| wxICON_ERROR);
            dlg.ShowModal();
            return;
        }
    }

    // change to the directory where the user went if asked
    if (style & wxFD_CHANGE_DIR)
    {
        // Use chdir to not care about filename encodings
        wxGtkString folder(g_path_get_dirname(filename));
        chdir(folder);
    }

    wxCommandEvent event(wxEVT_BUTTON, wxID_OK);
    event.SetEventObject(dialog);
    dialog->HandleWindowEvent(event);
}
}

//-----------------------------------------------------------------------------
// "clicked" for Cancel-button
//-----------------------------------------------------------------------------

extern "C"
{

static void
gtk_filedialog_cancel_callback(GtkWidget * WXUNUSED(w), wxFileDialog *dialog)
{
    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
    event.SetEventObject(dialog);
    dialog->HandleWindowEvent(event);
}

static void gtk_filedialog_response_callback(GtkWidget *w,
                                             gint response,
                                             wxFileDialog *dialog)
{
    if (response == GTK_RESPONSE_ACCEPT)
        gtk_filedialog_ok_callback(w, dialog);
    else    // GTK_RESPONSE_CANCEL or GTK_RESPONSE_NONE
        gtk_filedialog_cancel_callback(w, dialog);
}

static void gtk_filedialog_selchanged_callback(GtkFileChooser *chooser,
                                               wxFileDialog *dialog)
{
    wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));

    dialog->GTKSelectionChanged(wxString::FromUTF8(filename));
}


static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
                                                   gpointer user_data)
{
    GtkWidget *preview = GTK_WIDGET(user_data);

    wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));

    if ( !filename )
        return;

    GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size(filename, 128, 128, NULL);
    gboolean have_preview = pixbuf != NULL;

    gtk_image_set_from_pixbuf(GTK_IMAGE(preview), pixbuf);
    if ( pixbuf )
        g_object_unref (pixbuf);

    gtk_file_chooser_set_preview_widget_active(chooser, have_preview);
}

} // extern "C"

void wxFileDialog::AddChildGTK(wxWindowGTK* child)
{
    // allow dialog to be resized smaller horizontally
    gtk_widget_set_size_request(
        child->m_widget, child->GetMinWidth(), child->m_height);

    gtk_file_chooser_set_extra_widget(
        GTK_FILE_CHOOSER(m_widget), child->m_widget);
}

//-----------------------------------------------------------------------------
// wxFileDialog
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxFileDialogBase)

BEGIN_EVENT_TABLE(wxFileDialog,wxFileDialogBase)
    EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
    EVT_SIZE(wxFileDialog::OnSize)
END_EVENT_TABLE()

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()
{
    Create(parent, message, defaultDir, defaultFileName, wildCard, style, pos, sz, name);
}

bool wxFileDialog::Create(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)
{
    parent = GetParentForModalDialog(parent, style);

    if (!wxFileDialogBase::Create(parent, message, defaultDir, defaultFileName,
                                  wildCard, style, pos, sz, name))
    {
        return false;
    }

    if (!PreCreation(parent, pos, wxDefaultSize) ||
        !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
                wxDefaultValidator, wxT("filedialog")))
    {
        wxFAIL_MSG( wxT("wxFileDialog creation failed") );
        return false;
    }

    GtkFileChooserAction gtk_action;
    GtkWindow* gtk_parent = NULL;
    if (parent)
        gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );

    const gchar* ok_btn_stock;
    if ( style & wxFD_SAVE )
    {
        gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
        ok_btn_stock = GTK_STOCK_SAVE;
    }
    else
    {
        gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
        ok_btn_stock = GTK_STOCK_OPEN;
    }

    m_widget = gtk_file_chooser_dialog_new(
                   wxGTK_CONV(m_message),
                   gtk_parent,
                   gtk_action,
                   GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                   ok_btn_stock, GTK_RESPONSE_ACCEPT,
                   NULL);
    g_object_ref(m_widget);
    GtkFileChooser* file_chooser = GTK_FILE_CHOOSER(m_widget);

    m_fc.SetWidget(file_chooser);

    gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);

    if ( style & wxFD_MULTIPLE )
        gtk_file_chooser_set_select_multiple(file_chooser, true);

    // gtk_widget_hide_on_delete is used here to avoid that Gtk automatically
    // destroys the dialog when the user press ESC on the dialog: in that case
    // a second call to ShowModal() would result in a bunch of Gtk-CRITICAL
    // errors...
    g_signal_connect(m_widget,
                    "delete_event",
                    G_CALLBACK (gtk_widget_hide_on_delete),
                    this);

    // local-only property could be set to false to allow non-local files to be
    // loaded. In that case get/set_uri(s) should be used instead of
    // get/set_filename(s) everywhere and the GtkFileChooserDialog should
    // probably also be created with a backend, e.g. "gnome-vfs", "default", ...
    // (gtk_file_chooser_dialog_new_with_backend). Currently local-only is kept
    // as the default - true:
    // gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);

    g_signal_connect (m_widget, "response",
        G_CALLBACK (gtk_filedialog_response_callback), this);

    g_signal_connect (m_widget, "selection-changed",
        G_CALLBACK (gtk_filedialog_selchanged_callback), this);

    // deal with extensions/filters
    SetWildcard(wildCard);

    wxString defaultFileNameWithExt = defaultFileName;
    if ( !wildCard.empty() && !defaultFileName.empty() &&
            !wxFileName(defaultFileName).HasExt() )
    {
        // append the default extension to the initial file name: GTK won't do
        // it for us by default (unlike e.g. MSW)
        const wxString defaultExt = m_fc.GetCurrentWildCard().AfterFirst('.');
        if ( defaultExt.find_first_of("?*") == wxString::npos )
            defaultFileNameWithExt += "." + defaultExt;
    }


    // if defaultDir is specified it should contain the directory and
    // defaultFileName should contain the default name of the file, however if
    // directory is not given, defaultFileName contains both
    wxFileName fn;
    if ( defaultDir.empty() )
        fn.Assign(defaultFileNameWithExt);
    else if ( !defaultFileNameWithExt.empty() )
        fn.Assign(defaultDir, defaultFileNameWithExt);
    else
        fn.AssignDir(defaultDir);

    // set the initial file name and/or directory
    fn.MakeAbsolute(); // GTK+ needs absolute path
    const wxString dir = fn.GetPath();
    if ( !dir.empty() )
    {
        gtk_file_chooser_set_current_folder(file_chooser, wxGTK_CONV_FN(dir));
    }

    const wxString fname = fn.GetFullName();
    if ( style & wxFD_SAVE )
    {
        if ( !fname.empty() )
        {
            gtk_file_chooser_set_current_name(file_chooser, wxGTK_CONV_FN(fname));
        }

#if GTK_CHECK_VERSION(2,7,3)
        if ((style & wxFD_OVERWRITE_PROMPT)
#ifndef __WXGTK3__
            && gtk_check_version(2,7,3) == NULL
#endif
            )
        {
            gtk_file_chooser_set_do_overwrite_confirmation(file_chooser, true);
        }
#endif
    }
    else // wxFD_OPEN
    {
        if ( !fname.empty() )
        {
            gtk_file_chooser_set_filename(file_chooser,
                                          wxGTK_CONV_FN(fn.GetFullPath()));
        }
    }

    if ( style & wxFD_PREVIEW )
    {
        GtkWidget *previewImage = gtk_image_new();

        gtk_file_chooser_set_preview_widget(file_chooser, previewImage);
        g_signal_connect(m_widget, "update-preview",
                         G_CALLBACK(gtk_filedialog_update_preview_callback),
                         previewImage);
    }

    return true;
}

wxFileDialog::~wxFileDialog()
{
    if (m_extraControl)
    {
        // get chooser to drop its reference right now, allowing wxWindow dtor
        // to verify that ref count drops to zero
        gtk_file_chooser_set_extra_widget(
            GTK_FILE_CHOOSER(m_widget), NULL);
    }
}

void wxFileDialog::OnFakeOk(wxCommandEvent& WXUNUSED(event))
{
    // Update the current directory from here, accessing it later may not work
    // due to the strange way GtkFileChooser works.
    wxGtkString
        str(gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(m_widget)));
    m_dir = wxString::FromUTF8(str);

    EndDialog(wxID_OK);
}

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

    CreateExtraControl();

    return wxDialog::ShowModal();
}

void wxFileDialog::DoSetSize(int WXUNUSED(x), int WXUNUSED(y),
                             int WXUNUSED(width), int WXUNUSED(height),
                             int WXUNUSED(sizeFlags))
{
}

void wxFileDialog::OnSize(wxSizeEvent&)
{
    // avoid calling DoLayout(), which will set the (wrong) size of
    // m_extraControl, its size is managed by GtkFileChooser
}

wxString wxFileDialog::GetPath() const
{
    return m_fc.GetPath();
}

void wxFileDialog::GetFilenames(wxArrayString& files) const
{
    m_fc.GetFilenames( files );
}

void wxFileDialog::GetPaths(wxArrayString& paths) const
{
    m_fc.GetPaths( paths );
}

void wxFileDialog::SetMessage(const wxString& message)
{
    m_message = message;
    SetTitle(message);
}

void wxFileDialog::SetPath(const wxString& path)
{
    wxFileDialogBase::SetPath(path);

    // Don't do anything if no path is specified, in particular don't set the
    // path to m_dir below as this would result in opening the dialog in the
    // parent directory of this one instead of m_dir itself.
    if ( path.empty() )
        return;

    // we need an absolute path for GTK native chooser so ensure that we have
    // it: use the initial directory if it was set or just CWD otherwise (this
    // is the default behaviour if m_dir is empty)
    wxFileName fn(path);
    fn.MakeAbsolute(m_dir);
    m_fc.SetPath(fn.GetFullPath());
}

void wxFileDialog::SetDirectory(const wxString& dir)
{
    wxFileDialogBase::SetDirectory(dir);

    m_fc.SetDirectory(dir);
}

void wxFileDialog::SetFilename(const wxString& name)
{
    wxFileDialogBase::SetFilename(name);

    if (HasFdFlag(wxFD_SAVE))
    {
        gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
    }

    else
    {
        wxString path( GetDirectory() );
        if (path.empty())
        {
            // SetPath() fires an assert if fed other than filepaths
            return;
        }
        SetPath(wxFileName(path, name).GetFullPath());
    }
}

wxString wxFileDialog::GetFilename() const
{
    wxString currentFilename( m_fc.GetFilename() );
    if (currentFilename.empty())
    {
        // m_fc.GetFilename() will return empty until the dialog has been shown
        // in which case use any previously provided value
        currentFilename = m_fileName;
    }
    return currentFilename;
}

void wxFileDialog::SetWildcard(const wxString& wildCard)
{
    wxFileDialogBase::SetWildcard(wildCard);
    m_fc.SetWildcard( GetWildcard() );
}

void wxFileDialog::SetFilterIndex(int filterIndex)
{
    m_fc.SetFilterIndex( filterIndex);
}

int wxFileDialog::GetFilterIndex() const
{
    return m_fc.GetFilterIndex();
}

void wxFileDialog::GTKSelectionChanged(const wxString& filename)
{
    m_currentlySelectedFilename = filename;

    if (m_extraControl)
        m_extraControl->UpdateWindowUI(wxUPDATE_UI_RECURSE);
}

#endif // wxUSE_FILEDLG
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/gtk/filedlg.cpp
	3	// Purpose: native implementation of wxFileDialog
	4	// Author: Robert Roebling, Zbigniew Zagorski, Mart Raudsepp
	5	// Id: $Id$
	6	// Copyright: (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski, 2005 Mart Raudsepp
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	// For compilers that support precompilation, includes "wx.h".
	11	#include "wx/wxprec.h"
	12
	13	#if wxUSE_FILEDLG
	14
	15	#include "wx/filedlg.h"
	16
	17	#ifndef WX_PRECOMP
	18	#include "wx/intl.h"
	19	#include "wx/msgdlg.h"
	20	#endif
	21
	22	#include <gtk/gtk.h>
	23	#include "wx/gtk/private.h"
	24
	25	#ifdef __UNIX__
	26	#include <unistd.h> // chdir
	27	#endif
	28
	29	#include "wx/filename.h" // wxFilename
	30	#include "wx/tokenzr.h" // wxStringTokenizer
	31	#include "wx/filefn.h" // ::wxGetCwd
	32	#include "wx/modalhook.h"
	33
	34	//-----------------------------------------------------------------------------
	35	// "clicked" for OK-button
	36	//-----------------------------------------------------------------------------
	37
	38	extern "C" {
	39	static void gtk_filedialog_ok_callback(GtkWidget widget, wxFileDialog dialog)
	40	{
	41	int style = dialog->GetWindowStyle();
	42	wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
	43
	44	// gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
	45	#ifndef __WXGTK3__
	46	#if GTK_CHECK_VERSION(2,7,3)
	47	if (gtk_check_version(2, 7, 3) != NULL)
	48	#endif
	49	{
	50	if ((style & wxFD_SAVE) && (style & wxFD_OVERWRITE_PROMPT))
	51	{
	52	if ( g_file_test(filename, G_FILE_TEST_EXISTS) )
	53	{
	54	wxString msg;
	55
	56	msg.Printf(
	57	_("File '%s' already exists, do you really want to overwrite it?"),
	58	wxString::FromUTF8(filename));
	59
	60	wxMessageDialog dlg(dialog, msg, _("Confirm"),
	61	wxYES_NO \| wxICON_QUESTION);
	62	if (dlg.ShowModal() != wxID_YES)
	63	return;
	64	}
	65	}
	66	}
	67	#endif
	68
	69	if (style & wxFD_FILE_MUST_EXIST)
	70	{
	71	if ( !g_file_test(filename, G_FILE_TEST_EXISTS) )
	72	{
	73	wxMessageDialog dlg( dialog, _("Please choose an existing file."),
	74	_("Error"), wxOK\| wxICON_ERROR);
	75	dlg.ShowModal();
	76	return;
	77	}
	78	}
	79
	80	// change to the directory where the user went if asked
	81	if (style & wxFD_CHANGE_DIR)
	82	{
	83	// Use chdir to not care about filename encodings
	84	wxGtkString folder(g_path_get_dirname(filename));
	85	chdir(folder);
	86	}
	87
	88	wxCommandEvent event(wxEVT_BUTTON, wxID_OK);
	89	event.SetEventObject(dialog);
	90	dialog->HandleWindowEvent(event);
	91	}
	92	}
	93
	94	//-----------------------------------------------------------------------------
	95	// "clicked" for Cancel-button
	96	//-----------------------------------------------------------------------------
	97
	98	extern "C"
	99	{
	100
	101	static void
	102	gtk_filedialog_cancel_callback(GtkWidget * WXUNUSED(w), wxFileDialog *dialog)
	103	{
	104	wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
	105	event.SetEventObject(dialog);
	106	dialog->HandleWindowEvent(event);
	107	}
	108
	109	static void gtk_filedialog_response_callback(GtkWidget *w,
	110	gint response,
	111	wxFileDialog *dialog)
	112	{
	113	if (response == GTK_RESPONSE_ACCEPT)
	114	gtk_filedialog_ok_callback(w, dialog);
	115	else // GTK_RESPONSE_CANCEL or GTK_RESPONSE_NONE
	116	gtk_filedialog_cancel_callback(w, dialog);
	117	}
	118
	119	static void gtk_filedialog_selchanged_callback(GtkFileChooser *chooser,
	120	wxFileDialog *dialog)
	121	{
	122	wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));
	123
	124	dialog->GTKSelectionChanged(wxString::FromUTF8(filename));
	125	}
	126
	127
	128	static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
	129	gpointer user_data)
	130	{
	131	GtkWidget *preview = GTK_WIDGET(user_data);
	132
	133	wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));
	134
	135	if ( !filename )
	136	return;
	137
	138	GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size(filename, 128, 128, NULL);
	139	gboolean have_preview = pixbuf != NULL;
	140
	141	gtk_image_set_from_pixbuf(GTK_IMAGE(preview), pixbuf);
	142	if ( pixbuf )
	143	g_object_unref (pixbuf);
	144
	145	gtk_file_chooser_set_preview_widget_active(chooser, have_preview);
	146	}
	147
	148	} // extern "C"
	149
	150	void wxFileDialog::AddChildGTK(wxWindowGTK* child)
	151	{
	152	// allow dialog to be resized smaller horizontally
	153	gtk_widget_set_size_request(
	154	child->m_widget, child->GetMinWidth(), child->m_height);
	155
	156	gtk_file_chooser_set_extra_widget(
	157	GTK_FILE_CHOOSER(m_widget), child->m_widget);
	158	}
	159
	160	//-----------------------------------------------------------------------------
	161	// wxFileDialog
	162	//-----------------------------------------------------------------------------
	163
	164	IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxFileDialogBase)
	165
	166	BEGIN_EVENT_TABLE(wxFileDialog,wxFileDialogBase)
	167	EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
	168	EVT_SIZE(wxFileDialog::OnSize)
	169	END_EVENT_TABLE()
	170
	171	wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
	172	const wxString& defaultDir,
	173	const wxString& defaultFileName,
	174	const wxString& wildCard,
	175	long style, const wxPoint& pos,
	176	const wxSize& sz,
	177	const wxString& name)
	178	: wxFileDialogBase()
	179	{
	180	Create(parent, message, defaultDir, defaultFileName, wildCard, style, pos, sz, name);
	181	}
	182
	183	bool wxFileDialog::Create(wxWindow *parent, const wxString& message,
	184	const wxString& defaultDir,
	185	const wxString& defaultFileName,
	186	const wxString& wildCard,
	187	long style, const wxPoint& pos,
	188	const wxSize& sz,
	189	const wxString& name)
	190	{
	191	parent = GetParentForModalDialog(parent, style);
	192
	193	if (!wxFileDialogBase::Create(parent, message, defaultDir, defaultFileName,
	194	wildCard, style, pos, sz, name))
	195	{
	196	return false;
	197	}
	198
	199	if (!PreCreation(parent, pos, wxDefaultSize) \|\|
	200	!CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
	201	wxDefaultValidator, wxT("filedialog")))
	202	{
	203	wxFAIL_MSG( wxT("wxFileDialog creation failed") );
	204	return false;
	205	}
	206
	207	GtkFileChooserAction gtk_action;
	208	GtkWindow* gtk_parent = NULL;
	209	if (parent)
	210	gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
	211
	212	const gchar* ok_btn_stock;
	213	if ( style & wxFD_SAVE )
	214	{
	215	gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
	216	ok_btn_stock = GTK_STOCK_SAVE;
	217	}
	218	else
	219	{
	220	gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
	221	ok_btn_stock = GTK_STOCK_OPEN;
	222	}
	223
	224	m_widget = gtk_file_chooser_dialog_new(
	225	wxGTK_CONV(m_message),
	226	gtk_parent,
	227	gtk_action,
	228	GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
	229	ok_btn_stock, GTK_RESPONSE_ACCEPT,
	230	NULL);
	231	g_object_ref(m_widget);
	232	GtkFileChooser* file_chooser = GTK_FILE_CHOOSER(m_widget);
	233
	234	m_fc.SetWidget(file_chooser);
	235
	236	gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);
	237
	238	if ( style & wxFD_MULTIPLE )
	239	gtk_file_chooser_set_select_multiple(file_chooser, true);
	240
	241	// gtk_widget_hide_on_delete is used here to avoid that Gtk automatically
	242	// destroys the dialog when the user press ESC on the dialog: in that case
	243	// a second call to ShowModal() would result in a bunch of Gtk-CRITICAL
	244	// errors...
	245	g_signal_connect(m_widget,
	246	"delete_event",
	247	G_CALLBACK (gtk_widget_hide_on_delete),
	248	this);
	249
	250	// local-only property could be set to false to allow non-local files to be
	251	// loaded. In that case get/set_uri(s) should be used instead of
	252	// get/set_filename(s) everywhere and the GtkFileChooserDialog should
	253	// probably also be created with a backend, e.g. "gnome-vfs", "default", ...
	254	// (gtk_file_chooser_dialog_new_with_backend). Currently local-only is kept
	255	// as the default - true:
	256	// gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);
	257
	258	g_signal_connect (m_widget, "response",
	259	G_CALLBACK (gtk_filedialog_response_callback), this);
	260
	261	g_signal_connect (m_widget, "selection-changed",
	262	G_CALLBACK (gtk_filedialog_selchanged_callback), this);
	263
	264	// deal with extensions/filters
	265	SetWildcard(wildCard);
	266
	267	wxString defaultFileNameWithExt = defaultFileName;
	268	if ( !wildCard.empty() && !defaultFileName.empty() &&
	269	!wxFileName(defaultFileName).HasExt() )
	270	{
	271	// append the default extension to the initial file name: GTK won't do
	272	// it for us by default (unlike e.g. MSW)
	273	const wxString defaultExt = m_fc.GetCurrentWildCard().AfterFirst('.');
	274	if ( defaultExt.find_first_of("?*") == wxString::npos )
	275	defaultFileNameWithExt += "." + defaultExt;
	276	}
	277
	278
	279	// if defaultDir is specified it should contain the directory and
	280	// defaultFileName should contain the default name of the file, however if
	281	// directory is not given, defaultFileName contains both
	282	wxFileName fn;
	283	if ( defaultDir.empty() )
	284	fn.Assign(defaultFileNameWithExt);
	285	else if ( !defaultFileNameWithExt.empty() )
	286	fn.Assign(defaultDir, defaultFileNameWithExt);
	287	else
	288	fn.AssignDir(defaultDir);
	289
	290	// set the initial file name and/or directory
	291	fn.MakeAbsolute(); // GTK+ needs absolute path
	292	const wxString dir = fn.GetPath();
	293	if ( !dir.empty() )
	294	{
	295	gtk_file_chooser_set_current_folder(file_chooser, wxGTK_CONV_FN(dir));
	296	}
	297
	298	const wxString fname = fn.GetFullName();
	299	if ( style & wxFD_SAVE )
	300	{
	301	if ( !fname.empty() )
	302	{
	303	gtk_file_chooser_set_current_name(file_chooser, wxGTK_CONV_FN(fname));
	304	}
	305
	306	#if GTK_CHECK_VERSION(2,7,3)
	307	if ((style & wxFD_OVERWRITE_PROMPT)
	308	#ifndef __WXGTK3__
	309	&& gtk_check_version(2,7,3) == NULL
	310	#endif
	311	)
	312	{
	313	gtk_file_chooser_set_do_overwrite_confirmation(file_chooser, true);
	314	}
	315	#endif
	316	}
	317	else // wxFD_OPEN
	318	{
	319	if ( !fname.empty() )
	320	{
	321	gtk_file_chooser_set_filename(file_chooser,
	322	wxGTK_CONV_FN(fn.GetFullPath()));
	323	}
	324	}
	325
	326	if ( style & wxFD_PREVIEW )
	327	{
	328	GtkWidget *previewImage = gtk_image_new();
	329
	330	gtk_file_chooser_set_preview_widget(file_chooser, previewImage);
	331	g_signal_connect(m_widget, "update-preview",
	332	G_CALLBACK(gtk_filedialog_update_preview_callback),
	333	previewImage);
	334	}
	335
	336	return true;
	337	}
	338
	339	wxFileDialog::~wxFileDialog()
	340	{
	341	if (m_extraControl)
	342	{
	343	// get chooser to drop its reference right now, allowing wxWindow dtor
	344	// to verify that ref count drops to zero
	345	gtk_file_chooser_set_extra_widget(
	346	GTK_FILE_CHOOSER(m_widget), NULL);
	347	}
	348	}
	349
	350	void wxFileDialog::OnFakeOk(wxCommandEvent& WXUNUSED(event))
	351	{
	352	// Update the current directory from here, accessing it later may not work
	353	// due to the strange way GtkFileChooser works.
	354	wxGtkString
	355	str(gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(m_widget)));
	356	m_dir = wxString::FromUTF8(str);
	357
	358	EndDialog(wxID_OK);
	359	}
	360
	361	int wxFileDialog::ShowModal()
	362	{
	363	WX_HOOK_MODAL_DIALOG();
	364
	365	CreateExtraControl();
	366
	367	return wxDialog::ShowModal();
	368	}
	369
	370	void wxFileDialog::DoSetSize(int WXUNUSED(x), int WXUNUSED(y),
	371	int WXUNUSED(width), int WXUNUSED(height),
	372	int WXUNUSED(sizeFlags))
	373	{
	374	}
	375
	376	void wxFileDialog::OnSize(wxSizeEvent&)
	377	{
	378	// avoid calling DoLayout(), which will set the (wrong) size of
	379	// m_extraControl, its size is managed by GtkFileChooser
	380	}
	381
	382	wxString wxFileDialog::GetPath() const
	383	{
	384	return m_fc.GetPath();
	385	}
	386
	387	void wxFileDialog::GetFilenames(wxArrayString& files) const
	388	{
	389	m_fc.GetFilenames( files );
	390	}
	391
	392	void wxFileDialog::GetPaths(wxArrayString& paths) const
	393	{
	394	m_fc.GetPaths( paths );
	395	}
	396
	397	void wxFileDialog::SetMessage(const wxString& message)
	398	{
	399	m_message = message;
	400	SetTitle(message);
	401	}
	402
	403	void wxFileDialog::SetPath(const wxString& path)
	404	{
	405	wxFileDialogBase::SetPath(path);
	406
	407	// Don't do anything if no path is specified, in particular don't set the
	408	// path to m_dir below as this would result in opening the dialog in the
	409	// parent directory of this one instead of m_dir itself.
	410	if ( path.empty() )
	411	return;
	412
	413	// we need an absolute path for GTK native chooser so ensure that we have
	414	// it: use the initial directory if it was set or just CWD otherwise (this
	415	// is the default behaviour if m_dir is empty)
	416	wxFileName fn(path);
	417	fn.MakeAbsolute(m_dir);
	418	m_fc.SetPath(fn.GetFullPath());
	419	}
	420
	421	void wxFileDialog::SetDirectory(const wxString& dir)
	422	{
	423	wxFileDialogBase::SetDirectory(dir);
	424
	425	m_fc.SetDirectory(dir);
	426	}
	427
	428	void wxFileDialog::SetFilename(const wxString& name)
	429	{
	430	wxFileDialogBase::SetFilename(name);
	431
	432	if (HasFdFlag(wxFD_SAVE))
	433	{
	434	gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
	435	}
	436
	437	else
	438	{
	439	wxString path( GetDirectory() );
	440	if (path.empty())
	441	{
	442	// SetPath() fires an assert if fed other than filepaths
	443	return;
	444	}
	445	SetPath(wxFileName(path, name).GetFullPath());
	446	}
	447	}
	448
	449	wxString wxFileDialog::GetFilename() const
	450	{
	451	wxString currentFilename( m_fc.GetFilename() );
	452	if (currentFilename.empty())
	453	{
	454	// m_fc.GetFilename() will return empty until the dialog has been shown
	455	// in which case use any previously provided value
	456	currentFilename = m_fileName;
	457	}
	458	return currentFilename;
	459	}
	460
	461	void wxFileDialog::SetWildcard(const wxString& wildCard)
	462	{
	463	wxFileDialogBase::SetWildcard(wildCard);
	464	m_fc.SetWildcard( GetWildcard() );
	465	}
	466
	467	void wxFileDialog::SetFilterIndex(int filterIndex)
	468	{
	469	m_fc.SetFilterIndex( filterIndex);
	470	}
	471
	472	int wxFileDialog::GetFilterIndex() const
	473	{
	474	return m_fc.GetFilterIndex();
	475	}
	476
	477	void wxFileDialog::GTKSelectionChanged(const wxString& filename)
	478	{
	479	m_currentlySelectedFilename = filename;
	480
	481	if (m_extraControl)
	482	m_extraControl->UpdateWindowUI(wxUPDATE_UI_RECURSE);
	483	}
	484
	485	#endif // wxUSE_FILEDLG