950b1a9d51
Replace almost all occurrences of wxEvtHandler::Connect() with Bind(). See https://github.com/wxWidgets/wxWidgets/pull/820
338 lines
12 KiB
C++
338 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/gtk/filepicker.cpp
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// Purpose: implementation of wxFileButton and wxDirButton
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// Author: Francesco Montorsi
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// Modified By:
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// Created: 15/04/2006
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// Copyright: (c) Francesco Montorsi
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#if wxUSE_FILEPICKERCTRL
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#endif
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#include "wx/filepicker.h"
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#include "wx/tooltip.h"
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#include "wx/gtk/private.h"
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// ============================================================================
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// implementation
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// ============================================================================
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//-----------------------------------------------------------------------------
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// wxFileButton
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//-----------------------------------------------------------------------------
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wxIMPLEMENT_DYNAMIC_CLASS(wxFileButton, wxButton);
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bool wxFileButton::Create( wxWindow *parent, wxWindowID id,
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const wxString &label, const wxString &path,
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const wxString &message, const wxString &wildcard,
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const wxPoint &pos, const wxSize &size,
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long style, const wxValidator& validator,
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const wxString &name )
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{
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// we can't use the native button for wxFLP_SAVE pickers as it can only
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// open existing files and there is no way to create a new file using it
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if (!(style & wxFLP_SAVE) && !(style & wxFLP_USE_TEXTCTRL))
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{
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// VERY IMPORTANT: this code is identical to relative code in wxDirButton;
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// if you find a problem here, fix it also in wxDirButton !
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if (!PreCreation( parent, pos, size ) ||
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!wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK,
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validator, name))
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{
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wxFAIL_MSG( wxT("wxFileButton creation failed") );
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return false;
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}
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// create the dialog associated with this button
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// NB: unlike generic implementation, native GTK implementation needs to create
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// the filedialog here as it needs to use gtk_file_chooser_button_new_with_dialog()
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SetWindowStyle(style);
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m_path = path;
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m_message = message;
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m_wildcard = wildcard;
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if ((m_dialog = CreateDialog()) == NULL)
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return false;
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// little trick used to avoid problems when there are other GTK windows 'grabbed':
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// GtkFileChooserDialog won't be responsive to user events if there is another
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// window which called gtk_grab_add (and this happens if e.g. a wxDialog is running
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// in modal mode in the application - see wxDialogGTK::ShowModal).
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// An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton
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// is clicked and then remove it as soon as the user closes the dialog itself.
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// Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton,
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// thus we add grab on m_dialog->m_widget when it's shown and remove it when it's
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// hidden simply using its "show" and "hide" events - clean & simple :)
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g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL);
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g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL);
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// use as label the currently selected file
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m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget );
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g_object_ref(m_widget);
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// we need to know when the dialog has been dismissed clicking OK...
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// NOTE: the "clicked" signal is not available for a GtkFileChooserButton
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// thus we are forced to use wxFileDialog's event
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m_dialog->Bind(wxEVT_BUTTON, &wxFileButton::OnDialogOK, this);
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m_parent->DoAddChild( this );
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PostCreation(size);
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SetInitialSize(size);
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}
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else
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return wxGenericFileButton::Create(parent, id, label, path, message, wildcard,
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pos, size, style, validator, name);
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return true;
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}
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wxFileButton::~wxFileButton()
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{
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if ( m_dialog )
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{
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// when m_dialog is deleted, it will destroy the widget it is sharing
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// with GtkFileChooserButton, which results in a bunch of Gtk-CRITICAL
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// errors from GtkFileChooserButton. To avoid this, call gtk_widget_destroy()
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// on GtkFileChooserButton first (our base dtor will do it again, but
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// that does no harm). m_dialog holds a reference to the shared widget,
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// so it won't go away until m_dialog base dtor unrefs it.
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gtk_widget_destroy(m_widget);
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delete m_dialog;
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}
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}
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void wxFileButton::OnDialogOK(wxCommandEvent& ev)
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{
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// the wxFileDialog associated with the GtkFileChooserButton has been closed
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// using the OK button, thus the selected file has changed...
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if (ev.GetId() == wxID_OK)
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{
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// ...update our path
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UpdatePathFromDialog(m_dialog);
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// ...and fire an event
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wxFileDirPickerEvent event(wxEVT_FILEPICKER_CHANGED, this, GetId(), m_path);
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HandleWindowEvent(event);
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}
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}
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void wxFileButton::SetPath(const wxString &str)
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{
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m_path = str;
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if (m_dialog)
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UpdateDialogPath(m_dialog);
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}
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void wxFileButton::SetInitialDirectory(const wxString& dir)
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{
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if (m_dialog)
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{
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// Only change the directory if the default file name doesn't have any
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// directory in it, otherwise it takes precedence.
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if ( m_path.find_first_of(wxFileName::GetPathSeparators()) ==
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wxString::npos )
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{
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static_cast<wxFileDialog*>(m_dialog)->SetDirectory(dir);
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}
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}
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else
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wxGenericFileButton::SetInitialDirectory(dir);
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}
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void wxFileButton::DoApplyWidgetStyle(GtkRcStyle*)
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{
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}
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#endif // wxUSE_FILEPICKERCTRL
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#if wxUSE_DIRPICKERCTRL
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#ifdef __UNIX__
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#include <unistd.h> // chdir
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#endif
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//-----------------------------------------------------------------------------
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// "file-set"
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//-----------------------------------------------------------------------------
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extern "C" {
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static void file_set(GtkFileChooser* widget, wxDirButton* p)
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{
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// NB: it's important to use gtk_file_chooser_get_filename instead of
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// gtk_file_chooser_get_current_folder (see GTK docs) !
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wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
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p->GTKUpdatePath(filename);
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// since GtkFileChooserButton when used to pick directories also uses a combobox,
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// maybe that the current folder has been changed but not through the GtkFileChooserDialog
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// and thus the 'gtk_filedialog_ok_callback' could have not been called...
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// thus we need to make sure the current working directory is updated if wxDIRP_CHANGE_DIR
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// style was given.
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if (p->HasFlag(wxDIRP_CHANGE_DIR))
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{
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if ( chdir(filename) != 0 )
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{
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wxLogSysError(_("Changing current directory to \"%s\" failed"),
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wxString::FromUTF8(filename));
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}
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}
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// ...and fire an event
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wxFileDirPickerEvent event(wxEVT_DIRPICKER_CHANGED, p, p->GetId(), p->GetPath());
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p->HandleWindowEvent(event);
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}
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}
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//-----------------------------------------------------------------------------
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// "selection-changed"
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//-----------------------------------------------------------------------------
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extern "C" {
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static void selection_changed(GtkFileChooser* chooser, wxDirButton* win)
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{
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char* filename = gtk_file_chooser_get_filename(chooser);
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if (wxString::FromUTF8(filename) == win->GetPath())
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win->m_bIgnoreNextChange = false;
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else if (!win->m_bIgnoreNextChange)
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file_set(chooser, win);
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g_free(filename);
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}
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}
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//-----------------------------------------------------------------------------
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// wxDirButtonGTK
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//-----------------------------------------------------------------------------
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wxIMPLEMENT_DYNAMIC_CLASS(wxDirButton, wxButton);
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bool wxDirButton::Create( wxWindow *parent, wxWindowID id,
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const wxString &label, const wxString &path,
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const wxString &message, const wxString &wildcard,
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const wxPoint &pos, const wxSize &size,
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long style, const wxValidator& validator,
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const wxString &name )
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{
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if (!(style & wxDIRP_USE_TEXTCTRL))
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{
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// VERY IMPORTANT: this code is identic to relative code in wxFileButton;
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// if you find a problem here, fix it also in wxFileButton !
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if (!PreCreation( parent, pos, size ) ||
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!wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK,
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validator, name))
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{
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wxFAIL_MSG( wxT("wxDirButtonGTK creation failed") );
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return false;
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}
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// create the dialog associated with this button
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SetWindowStyle(style);
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m_message = message;
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m_wildcard = wildcard;
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if ((m_dialog = CreateDialog()) == NULL)
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return false;
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// little trick used to avoid problems when there are other GTK windows 'grabbed':
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// GtkFileChooserDialog won't be responsive to user events if there is another
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// window which called gtk_grab_add (and this happens if e.g. a wxDialog is running
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// in modal mode in the application - see wxDialogGTK::ShowModal).
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// An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton
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// is clicked and then remove it as soon as the user closes the dialog itself.
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// Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton,
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// thus we add grab on m_dialog->m_widget when it's shown and remove it when it's
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// hidden simply using its "show" and "hide" events - clean & simple :)
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g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL);
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g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL);
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// NOTE: we deliberately ignore the given label as GtkFileChooserButton
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// use as label the currently selected file
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m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget );
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g_object_ref(m_widget);
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SetPath(path);
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#ifdef __WXGTK3__
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if (gtk_check_version(3,8,0) == NULL)
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g_signal_connect(m_widget, "file_set", G_CALLBACK(file_set), this);
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else
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#endif
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{
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// prior to GTK+ 3.8 neither "file-set" nor "current-folder-changed" will be
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// emitted when the user selects one of the special folders from the combobox
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g_signal_connect(m_widget, "selection_changed",
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G_CALLBACK(selection_changed), this);
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}
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m_parent->DoAddChild( this );
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PostCreation(size);
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SetInitialSize(size);
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}
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else
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return wxGenericDirButton::Create(parent, id, label, path, message, wildcard,
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pos, size, style, validator, name);
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return true;
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}
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wxDirButton::~wxDirButton()
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{
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if (m_dialog)
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{
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// see ~wxFileButton() comment
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gtk_widget_destroy(m_widget);
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delete m_dialog;
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}
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}
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void wxDirButton::GTKUpdatePath(const char *gtkpath)
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{
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m_path = wxString::FromUTF8(gtkpath);
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}
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void wxDirButton::SetPath(const wxString& str)
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{
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if ( m_path == str )
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return;
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m_path = str;
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m_bIgnoreNextChange = true;
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if (GTK_IS_FILE_CHOOSER(m_widget))
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gtk_file_chooser_set_filename((GtkFileChooser*)m_widget, str.utf8_str());
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else if (m_dialog)
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UpdateDialogPath(m_dialog);
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}
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void wxDirButton::SetInitialDirectory(const wxString& dir)
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{
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if (m_dialog)
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{
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if (m_path.empty())
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static_cast<wxDirDialog*>(m_dialog)->SetPath(dir);
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}
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else
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wxGenericDirButton::SetInitialDirectory(dir);
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}
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void wxDirButton::DoApplyWidgetStyle(GtkRcStyle*)
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{
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}
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#endif // wxUSE_DIRPICKERCTRL
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