| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/gtk/filepicker.cpp |
| 3 | // Purpose: implementation of wxFileButton and wxDirButton |
| 4 | // Author: Francesco Montorsi |
| 5 | // Modified By: |
| 6 | // Created: 15/04/2006 |
| 7 | // Copyright: (c) Francesco Montorsi |
| 8 | // Licence: wxWindows licence |
| 9 | ///////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | |
| 12 | // ---------------------------------------------------------------------------- |
| 13 | // headers |
| 14 | // ---------------------------------------------------------------------------- |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #if wxUSE_FILEPICKERCTRL |
| 20 | |
| 21 | #include "wx/filepicker.h" |
| 22 | #include "wx/tooltip.h" |
| 23 | |
| 24 | #include <gtk/gtk.h> |
| 25 | #include "wx/gtk/private.h" |
| 26 | |
| 27 | // ============================================================================ |
| 28 | // implementation |
| 29 | // ============================================================================ |
| 30 | |
| 31 | //----------------------------------------------------------------------------- |
| 32 | // wxFileButton |
| 33 | //----------------------------------------------------------------------------- |
| 34 | |
| 35 | IMPLEMENT_DYNAMIC_CLASS(wxFileButton, wxButton) |
| 36 | |
| 37 | bool wxFileButton::Create( wxWindow *parent, wxWindowID id, |
| 38 | const wxString &label, const wxString &path, |
| 39 | const wxString &message, const wxString &wildcard, |
| 40 | const wxPoint &pos, const wxSize &size, |
| 41 | long style, const wxValidator& validator, |
| 42 | const wxString &name ) |
| 43 | { |
| 44 | // we can't use the native button for wxFLP_SAVE pickers as it can only |
| 45 | // open existing files and there is no way to create a new file using it |
| 46 | if (!(style & wxFLP_SAVE) && !(style & wxFLP_USE_TEXTCTRL)) |
| 47 | { |
| 48 | // VERY IMPORTANT: this code is identical to relative code in wxDirButton; |
| 49 | // if you find a problem here, fix it also in wxDirButton ! |
| 50 | |
| 51 | if (!PreCreation( parent, pos, size ) || |
| 52 | !wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK, |
| 53 | validator, name)) |
| 54 | { |
| 55 | wxFAIL_MSG( wxT("wxFileButton creation failed") ); |
| 56 | return false; |
| 57 | } |
| 58 | |
| 59 | // create the dialog associated with this button |
| 60 | // NB: unlike generic implementation, native GTK implementation needs to create |
| 61 | // the filedialog here as it needs to use gtk_file_chooser_button_new_with_dialog() |
| 62 | SetWindowStyle(style); |
| 63 | m_path = path; |
| 64 | m_message = message; |
| 65 | m_wildcard = wildcard; |
| 66 | if ((m_dialog = CreateDialog()) == NULL) |
| 67 | return false; |
| 68 | |
| 69 | // little trick used to avoid problems when there are other GTK windows 'grabbed': |
| 70 | // GtkFileChooserDialog won't be responsive to user events if there is another |
| 71 | // window which called gtk_grab_add (and this happens if e.g. a wxDialog is running |
| 72 | // in modal mode in the application - see wxDialogGTK::ShowModal). |
| 73 | // An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton |
| 74 | // is clicked and then remove it as soon as the user closes the dialog itself. |
| 75 | // Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton, |
| 76 | // thus we add grab on m_dialog->m_widget when it's shown and remove it when it's |
| 77 | // hidden simply using its "show" and "hide" events - clean & simple :) |
| 78 | g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL); |
| 79 | g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL); |
| 80 | |
| 81 | // use as label the currently selected file |
| 82 | m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget ); |
| 83 | g_object_ref(m_widget); |
| 84 | |
| 85 | // we need to know when the dialog has been dismissed clicking OK... |
| 86 | // NOTE: the "clicked" signal is not available for a GtkFileChooserButton |
| 87 | // thus we are forced to use wxFileDialog's event |
| 88 | m_dialog->Connect(wxEVT_BUTTON, |
| 89 | wxCommandEventHandler(wxFileButton::OnDialogOK), |
| 90 | NULL, this); |
| 91 | |
| 92 | m_parent->DoAddChild( this ); |
| 93 | |
| 94 | PostCreation(size); |
| 95 | SetInitialSize(size); |
| 96 | } |
| 97 | else |
| 98 | return wxGenericFileButton::Create(parent, id, label, path, message, wildcard, |
| 99 | pos, size, style, validator, name); |
| 100 | return true; |
| 101 | } |
| 102 | |
| 103 | wxFileButton::~wxFileButton() |
| 104 | { |
| 105 | if ( m_dialog ) |
| 106 | { |
| 107 | // when m_dialog is deleted, it will destroy the widget it is sharing |
| 108 | // with GtkFileChooserButton, which results in a bunch of Gtk-CRITICAL |
| 109 | // errors from GtkFileChooserButton. To avoid this, call gtk_widget_destroy() |
| 110 | // on GtkFileChooserButton first (our base dtor will do it again, but |
| 111 | // that does no harm). m_dialog holds a reference to the shared widget, |
| 112 | // so it won't go away until m_dialog base dtor unrefs it. |
| 113 | gtk_widget_destroy(m_widget); |
| 114 | delete m_dialog; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | void wxFileButton::OnDialogOK(wxCommandEvent& ev) |
| 119 | { |
| 120 | // the wxFileDialog associated with the GtkFileChooserButton has been closed |
| 121 | // using the OK button, thus the selected file has changed... |
| 122 | if (ev.GetId() == wxID_OK) |
| 123 | { |
| 124 | // ...update our path |
| 125 | UpdatePathFromDialog(m_dialog); |
| 126 | |
| 127 | // ...and fire an event |
| 128 | wxFileDirPickerEvent event(wxEVT_FILEPICKER_CHANGED, this, GetId(), m_path); |
| 129 | HandleWindowEvent(event); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | void wxFileButton::SetPath(const wxString &str) |
| 134 | { |
| 135 | m_path = str; |
| 136 | |
| 137 | if (m_dialog) |
| 138 | UpdateDialogPath(m_dialog); |
| 139 | } |
| 140 | |
| 141 | void wxFileButton::SetInitialDirectory(const wxString& dir) |
| 142 | { |
| 143 | if (m_dialog) |
| 144 | { |
| 145 | // Only change the directory if the default file name doesn't have any |
| 146 | // directory in it, otherwise it takes precedence. |
| 147 | if ( m_path.find_first_of(wxFileName::GetPathSeparators()) == |
| 148 | wxString::npos ) |
| 149 | { |
| 150 | static_cast<wxFileDialog*>(m_dialog)->SetDirectory(dir); |
| 151 | } |
| 152 | } |
| 153 | else |
| 154 | wxGenericFileButton::SetInitialDirectory(dir); |
| 155 | } |
| 156 | |
| 157 | #endif // wxUSE_FILEPICKERCTRL |
| 158 | |
| 159 | #if wxUSE_DIRPICKERCTRL |
| 160 | |
| 161 | #ifdef __UNIX__ |
| 162 | #include <unistd.h> // chdir |
| 163 | #endif |
| 164 | |
| 165 | //----------------------------------------------------------------------------- |
| 166 | // "current-folder-changed" |
| 167 | //----------------------------------------------------------------------------- |
| 168 | |
| 169 | extern "C" { |
| 170 | static void gtk_dirbutton_currentfolderchanged_callback(GtkFileChooserButton *widget, |
| 171 | wxDirButton *p) |
| 172 | { |
| 173 | // update the m_path member of the wxDirButtonGTK |
| 174 | // unless the path was changed by wxDirButton::SetPath() |
| 175 | if (p->m_bIgnoreNextChange) |
| 176 | { |
| 177 | p->m_bIgnoreNextChange=false; |
| 178 | return; |
| 179 | } |
| 180 | wxASSERT(p); |
| 181 | |
| 182 | // NB: it's important to use gtk_file_chooser_get_filename instead of |
| 183 | // gtk_file_chooser_get_current_folder (see GTK docs) ! |
| 184 | wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget))); |
| 185 | p->GTKUpdatePath(filename); |
| 186 | |
| 187 | // since GtkFileChooserButton when used to pick directories also uses a combobox, |
| 188 | // maybe that the current folder has been changed but not through the GtkFileChooserDialog |
| 189 | // and thus the 'gtk_filedialog_ok_callback' could have not been called... |
| 190 | // thus we need to make sure the current working directory is updated if wxDIRP_CHANGE_DIR |
| 191 | // style was given. |
| 192 | if (p->HasFlag(wxDIRP_CHANGE_DIR)) |
| 193 | chdir(filename); |
| 194 | |
| 195 | // ...and fire an event |
| 196 | wxFileDirPickerEvent event(wxEVT_DIRPICKER_CHANGED, p, p->GetId(), p->GetPath()); |
| 197 | p->HandleWindowEvent(event); |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | |
| 202 | //----------------------------------------------------------------------------- |
| 203 | // wxDirButtonGTK |
| 204 | //----------------------------------------------------------------------------- |
| 205 | |
| 206 | IMPLEMENT_DYNAMIC_CLASS(wxDirButton, wxButton) |
| 207 | |
| 208 | bool wxDirButton::Create( wxWindow *parent, wxWindowID id, |
| 209 | const wxString &label, const wxString &path, |
| 210 | const wxString &message, const wxString &wildcard, |
| 211 | const wxPoint &pos, const wxSize &size, |
| 212 | long style, const wxValidator& validator, |
| 213 | const wxString &name ) |
| 214 | { |
| 215 | if (!(style & wxDIRP_USE_TEXTCTRL)) |
| 216 | { |
| 217 | // VERY IMPORTANT: this code is identic to relative code in wxFileButton; |
| 218 | // if you find a problem here, fix it also in wxFileButton ! |
| 219 | |
| 220 | if (!PreCreation( parent, pos, size ) || |
| 221 | !wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK, |
| 222 | validator, name)) |
| 223 | { |
| 224 | wxFAIL_MSG( wxT("wxDirButtonGTK creation failed") ); |
| 225 | return false; |
| 226 | } |
| 227 | |
| 228 | // create the dialog associated with this button |
| 229 | SetWindowStyle(style); |
| 230 | m_message = message; |
| 231 | m_wildcard = wildcard; |
| 232 | if ((m_dialog = CreateDialog()) == NULL) |
| 233 | return false; |
| 234 | SetPath(path); |
| 235 | |
| 236 | // little trick used to avoid problems when there are other GTK windows 'grabbed': |
| 237 | // GtkFileChooserDialog won't be responsive to user events if there is another |
| 238 | // window which called gtk_grab_add (and this happens if e.g. a wxDialog is running |
| 239 | // in modal mode in the application - see wxDialogGTK::ShowModal). |
| 240 | // An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton |
| 241 | // is clicked and then remove it as soon as the user closes the dialog itself. |
| 242 | // Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton, |
| 243 | // thus we add grab on m_dialog->m_widget when it's shown and remove it when it's |
| 244 | // hidden simply using its "show" and "hide" events - clean & simple :) |
| 245 | g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL); |
| 246 | g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL); |
| 247 | |
| 248 | |
| 249 | // NOTE: we deliberately ignore the given label as GtkFileChooserButton |
| 250 | // use as label the currently selected file |
| 251 | m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget ); |
| 252 | g_object_ref(m_widget); |
| 253 | |
| 254 | // GtkFileChooserButton signals |
| 255 | g_signal_connect(m_widget, "current-folder-changed", |
| 256 | G_CALLBACK(gtk_dirbutton_currentfolderchanged_callback), this); |
| 257 | |
| 258 | m_parent->DoAddChild( this ); |
| 259 | |
| 260 | PostCreation(size); |
| 261 | SetInitialSize(size); |
| 262 | } |
| 263 | else |
| 264 | return wxGenericDirButton::Create(parent, id, label, path, message, wildcard, |
| 265 | pos, size, style, validator, name); |
| 266 | return true; |
| 267 | } |
| 268 | |
| 269 | wxDirButton::~wxDirButton() |
| 270 | { |
| 271 | if (m_dialog) |
| 272 | { |
| 273 | // see ~wxFileButton() comment |
| 274 | gtk_widget_destroy(m_widget); |
| 275 | delete m_dialog; |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | void wxDirButton::GTKUpdatePath(const char *gtkpath) |
| 280 | { |
| 281 | m_path = wxString::FromUTF8(gtkpath); |
| 282 | } |
| 283 | void wxDirButton::SetPath(const wxString& str) |
| 284 | { |
| 285 | if ( m_path == str ) |
| 286 | { |
| 287 | // don't do anything and especially don't set m_bIgnoreNextChange |
| 288 | return; |
| 289 | } |
| 290 | |
| 291 | m_path = str; |
| 292 | |
| 293 | // wxDirButton uses the "current-folder-changed" signal which is triggered also |
| 294 | // when we set the path on the dialog associated with this button; thus we need |
| 295 | // to set the following flag to avoid sending a wxFileDirPickerEvent from this |
| 296 | // function (which would be inconsistent with wxFileButton's behaviour and in |
| 297 | // general with all wxWidgets control-manipulation functions which do not send events). |
| 298 | m_bIgnoreNextChange = true; |
| 299 | |
| 300 | if (m_dialog) |
| 301 | UpdateDialogPath(m_dialog); |
| 302 | } |
| 303 | |
| 304 | void wxDirButton::SetInitialDirectory(const wxString& dir) |
| 305 | { |
| 306 | if (m_dialog) |
| 307 | { |
| 308 | if (m_path.empty()) |
| 309 | static_cast<wxDirDialog*>(m_dialog)->SetPath(dir); |
| 310 | } |
| 311 | else |
| 312 | wxGenericDirButton::SetInitialDirectory(dir); |
| 313 | } |
| 314 | |
| 315 | #endif // wxUSE_DIRPICKERCTRL |