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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 // Id: $Id$
8 // Copyright: (c) Francesco Montorsi
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12
13 // ----------------------------------------------------------------------------
14 // headers
15 // ----------------------------------------------------------------------------
16
17 // For compilers that support precompilation, includes "wx.h".
18 #include "wx/wxprec.h"
19
20 #if wxUSE_FILEPICKERCTRL && defined(__WXGTK26__)
21
22 #include "wx/filepicker.h"
23 #include "wx/tooltip.h"
24
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) && !gtk_check_version(2,6,0) )
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
84 g_object_ref(m_widget);
85 gtk_widget_show(m_widget);
86
87 // we need to know when the dialog has been dismissed clicking OK...
88 // NOTE: the "clicked" signal is not available for a GtkFileChooserButton
89 // thus we are forced to use wxFileDialog's event
90 m_dialog->Connect(wxEVT_COMMAND_BUTTON_CLICKED,
91 wxCommandEventHandler(wxFileButton::OnDialogOK),
92 NULL, this);
93
94 m_parent->DoAddChild( this );
95
96 PostCreation(size);
97 SetInitialSize(size);
98 }
99 else
100 return wxGenericFileButton::Create(parent, id, label, path, message, wildcard,
101 pos, size, style, validator, name);
102 return true;
103 }
104
105 wxFileButton::~wxFileButton()
106 {
107 }
108
109 void wxFileButton::OnDialogOK(wxCommandEvent& ev)
110 {
111 // the wxFileDialog associated with the GtkFileChooserButton has been closed
112 // using the OK button, thus the selected file has changed...
113 if (ev.GetId() == wxID_OK)
114 {
115 // ...update our path
116 UpdatePathFromDialog(m_dialog);
117
118 // ...and fire an event
119 wxFileDirPickerEvent event(wxEVT_COMMAND_FILEPICKER_CHANGED, this, GetId(), m_path);
120 HandleWindowEvent(event);
121 }
122 }
123
124 void wxFileButton::SetPath(const wxString &str)
125 {
126 m_path = str;
127
128 if (m_dialog)
129 UpdateDialogPath(m_dialog);
130 }
131
132 #endif // wxUSE_FILEPICKERCTRL && defined(__WXGTK26__)
133
134
135
136
137 #if wxUSE_DIRPICKERCTRL && defined(__WXGTK26__)
138
139 #include <unistd.h> // chdir
140
141 //-----------------------------------------------------------------------------
142 // "current-folder-changed"
143 //-----------------------------------------------------------------------------
144
145 extern "C" {
146 static void gtk_dirbutton_currentfolderchanged_callback(GtkFileChooserButton *widget,
147 wxDirButton *p)
148 {
149 // update the m_path member of the wxDirButtonGTK
150 // unless the path was changed by wxDirButton::SetPath()
151 if (p->m_bIgnoreNextChange)
152 {
153 p->m_bIgnoreNextChange=false;
154 return;
155 }
156 wxASSERT(p);
157
158 // NB: it's important to use gtk_file_chooser_get_filename instead of
159 // gtk_file_chooser_get_current_folder (see GTK docs) !
160 wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
161 p->GTKUpdatePath(filename);
162
163 // since GtkFileChooserButton when used to pick directories also uses a combobox,
164 // maybe that the current folder has been changed but not through the GtkFileChooserDialog
165 // and thus the 'gtk_filedialog_ok_callback' could have not been called...
166 // thus we need to make sure the current working directory is updated if wxDIRP_CHANGE_DIR
167 // style was given.
168 if (p->HasFlag(wxDIRP_CHANGE_DIR))
169 chdir(filename);
170
171 // ...and fire an event
172 wxFileDirPickerEvent event(wxEVT_COMMAND_DIRPICKER_CHANGED, p, p->GetId(), p->GetPath());
173 p->HandleWindowEvent(event);
174 }
175 }
176
177
178 //-----------------------------------------------------------------------------
179 // wxDirButtonGTK
180 //-----------------------------------------------------------------------------
181
182 IMPLEMENT_DYNAMIC_CLASS(wxDirButton, wxButton)
183
184 bool wxDirButton::Create( wxWindow *parent, wxWindowID id,
185 const wxString &label, const wxString &path,
186 const wxString &message, const wxString &wildcard,
187 const wxPoint &pos, const wxSize &size,
188 long style, const wxValidator& validator,
189 const wxString &name )
190 {
191 if ( !(style & wxDIRP_USE_TEXTCTRL) && !gtk_check_version(2,6,0) )
192 {
193 // VERY IMPORTANT: this code is identic to relative code in wxFileButton;
194 // if you find a problem here, fix it also in wxFileButton !
195
196 if (!PreCreation( parent, pos, size ) ||
197 !wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK,
198 validator, name))
199 {
200 wxFAIL_MSG( wxT("wxDirButtonGTK creation failed") );
201 return false;
202 }
203
204 // create the dialog associated with this button
205 SetWindowStyle(style);
206 m_message = message;
207 m_wildcard = wildcard;
208 if ((m_dialog = CreateDialog()) == NULL)
209 return false;
210 SetPath(path);
211
212 // little trick used to avoid problems when there are other GTK windows 'grabbed':
213 // GtkFileChooserDialog won't be responsive to user events if there is another
214 // window which called gtk_grab_add (and this happens if e.g. a wxDialog is running
215 // in modal mode in the application - see wxDialogGTK::ShowModal).
216 // An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton
217 // is clicked and then remove it as soon as the user closes the dialog itself.
218 // Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton,
219 // thus we add grab on m_dialog->m_widget when it's shown and remove it when it's
220 // hidden simply using its "show" and "hide" events - clean & simple :)
221 g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL);
222 g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL);
223
224
225 // NOTE: we deliberately ignore the given label as GtkFileChooserButton
226 // use as label the currently selected file
227 m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget );
228 g_object_ref(m_widget);
229
230
231 gtk_widget_show(m_widget);
232
233 // GtkFileChooserButton signals
234 g_signal_connect(m_widget, "current-folder-changed",
235 G_CALLBACK(gtk_dirbutton_currentfolderchanged_callback), this);
236
237 m_parent->DoAddChild( this );
238
239 PostCreation(size);
240 SetInitialSize(size);
241 }
242 else
243 return wxGenericDirButton::Create(parent, id, label, path, message, wildcard,
244 pos, size, style, validator, name);
245 return true;
246 }
247
248 wxDirButton::~wxDirButton()
249 {
250 }
251
252 void wxDirButton::GTKUpdatePath(const char *gtkpath)
253 {
254 m_path = wxString::FromUTF8(gtkpath);
255 }
256 void wxDirButton::SetPath(const wxString& str)
257 {
258 if ( m_path == str )
259 {
260 // don't do anything and especially don't set m_bIgnoreNextChange
261 return;
262 }
263
264 m_path = str;
265
266 // wxDirButton uses the "current-folder-changed" signal which is triggered also
267 // when we set the path on the dialog associated with this button; thus we need
268 // to set the following flag to avoid sending a wxFileDirPickerEvent from this
269 // function (which would be inconsistent with wxFileButton's behaviour and in
270 // general with all wxWidgets control-manipulation functions which do not send events).
271 m_bIgnoreNextChange = true;
272
273 if (m_dialog)
274 UpdateDialogPath(m_dialog);
275 }
276
277 #endif // wxUSE_DIRPICKERCTRL && defined(__WXGTK26__)