remove file selection dialog lost filename workaround (causes segfault on doubleclick)
[claws.git] / src / filesel.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2001 Hiroyuki Yamamoto
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  */
19
20 #include <glib.h>
21 #include <gdk/gdkkeysyms.h>
22 #include <gtk/gtkwidget.h>
23 #include <gtk/gtkfilesel.h>
24 #include <gtk/gtkmain.h>
25 #include <gtk/gtksignal.h>
26 #include <gtk/gtkeditable.h>
27 #include <gtk/gtkentry.h>
28
29 #include "main.h"
30 #include "filesel.h"
31 #include "manage_window.h"
32 #include "gtkutils.h"
33 #include "utils.h"
34
35 static GtkWidget *filesel;
36 static gboolean filesel_ack;
37 static gchar *filesel_oldfilename = NULL;
38
39 static void filesel_create(const gchar *title, gboolean multiple_files);
40 static void filesel_ok_cb(GtkWidget *widget, gpointer data);
41 static void filesel_cancel_cb(GtkWidget *widget, gpointer data);
42 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data);
43 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data);
44
45 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
46                                                GdkEventButton *event, gpointer userdata);
47 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
48                                                 GdkEventButton *event, gpointer userdata);
49
50 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
51                                               GdkEventButton *event, gpointer userdata);
52 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
53                                                GdkEventButton *event, gpointer userdata);
54
55 static GList *filesel_get_multiple_filenames(void);
56
57 gchar *filesel_select_file(const gchar *title, const gchar *file)
58 {
59         static gchar *filename = NULL;
60         static gchar *cwd = NULL;
61
62         filesel_create(title, FALSE);
63
64         manage_window_set_transient(GTK_WINDOW(filesel));
65
66         if (filename) {
67                 g_free(filename);
68                 filename = NULL;
69         }
70
71         if (!cwd)
72                 cwd = g_strconcat(startup_dir, G_DIR_SEPARATOR_S, NULL);
73
74         gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel), cwd);
75
76         if (file) {
77                 gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel),
78                                                 file);
79                 filesel_oldfilename = g_strdup(file);
80         }
81
82         gtk_widget_show(filesel);
83
84         gtk_main();
85
86         if (filesel_ack) {
87                 gchar *str;
88
89                 str = gtk_file_selection_get_filename
90                         (GTK_FILE_SELECTION(filesel));
91                 if (str && str[0] != '\0') {
92                         gchar *dir;
93
94                         filename = g_strdup(str);
95                         dir = g_dirname(str);
96                         g_free(cwd);
97                         cwd = g_strconcat(dir, G_DIR_SEPARATOR_S, NULL);
98                         g_free(dir);
99                 }
100         }
101
102         manage_window_focus_out(filesel, NULL, NULL);
103         gtk_widget_destroy(filesel);
104         GTK_EVENTS_FLUSH();
105
106         return filename;
107 }
108
109 GList *filesel_select_multiple_files(const gchar *title, const gchar *file)
110 {
111         /* ALF - sorry for the exuberant code duping... need to 
112          * be cleaned up. */
113         static gchar *filename = NULL;
114         static gchar *cwd = NULL;
115         GList        *list = NULL;
116
117         filesel_create(title, TRUE);
118
119         manage_window_set_transient(GTK_WINDOW(filesel));
120
121         if (filename) {
122                 g_free(filename);
123                 filename = NULL;
124         }
125
126         if (!cwd)
127                 cwd = g_strconcat(startup_dir, G_DIR_SEPARATOR_S, NULL);
128
129         gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel), cwd);
130
131         if (file)
132                 gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel),
133                                                 file);
134         gtk_widget_show(filesel);
135
136         gtk_main();
137
138         if (filesel_ack)
139                 list = filesel_get_multiple_filenames();                
140
141         manage_window_focus_out(filesel, NULL, NULL);
142         gtk_widget_destroy(filesel);
143         GTK_EVENTS_FLUSH();
144
145         return list;
146 }
147
148 static void filesel_create(const gchar *title, gboolean multiple_files)
149 {
150         filesel = gtk_file_selection_new(title);
151         gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button),
152                            "clicked", GTK_SIGNAL_FUNC(filesel_ok_cb),
153                            NULL);
154         gtk_signal_connect
155                 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button),
156                  "clicked", GTK_SIGNAL_FUNC(filesel_cancel_cb),
157                  NULL);
158         gtk_signal_connect(GTK_OBJECT(filesel), "delete_event",
159                            GTK_SIGNAL_FUNC(delete_event), NULL);
160         gtk_signal_connect(GTK_OBJECT(filesel), "key_press_event",
161                            GTK_SIGNAL_FUNC(key_pressed), NULL);
162         gtk_signal_connect(GTK_OBJECT(filesel), "focus_in_event",
163                            GTK_SIGNAL_FUNC(manage_window_focus_in), NULL);
164         gtk_signal_connect(GTK_OBJECT(filesel), "focus_out_event",
165                            GTK_SIGNAL_FUNC(manage_window_focus_out), NULL);
166
167         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
168
169         if (multiple_files) {
170                 gtk_clist_set_selection_mode
171                         (GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list),
172                          GTK_SELECTION_MULTIPLE);
173                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
174                                    "select_row", 
175                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
176                                    NULL);
177                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
178                                    "unselect_row",
179                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
180                                    NULL);
181                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
182                                    "select_row",
183                                    GTK_SIGNAL_FUNC(filesel_dir_list_select_row_multi),
184                                    NULL);
185         }
186 }
187
188 static void filesel_ok_cb(GtkWidget *widget, gpointer data)
189 {
190         filesel_ack = TRUE;
191         g_free(filesel_oldfilename);
192         gtk_main_quit();
193 }
194
195 static void filesel_cancel_cb(GtkWidget *widget, gpointer data)
196 {
197         filesel_ack = FALSE;
198         g_free(filesel_oldfilename);
199         gtk_main_quit();
200 }
201
202 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
203 {
204         filesel_cancel_cb(NULL, NULL);
205         g_free(filesel_oldfilename);
206         return TRUE;
207 }
208
209 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
210 {
211         if (event && event->keyval == GDK_Escape)
212                 filesel_cancel_cb(NULL, NULL);
213 }
214
215 /* handle both "select_row" and "unselect_row". note that we're using the
216  * entry box to put there the selected file names in. we're not using these
217  * entry box to get the selected file names. instead we use the clist selection.
218  * the entry box is used only to retrieve dir name. */
219 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
220                                                GdkEventButton *event, gpointer userdata)
221 {
222         /* simple implementation in which we clear the file entry and refill it */
223         GList    *list  = clist->selection;
224         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
225
226         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
227
228 #define INVALID_FILENAME_CHARS     " "
229         for (; list; list = list->next) {
230                 gint row = GPOINTER_TO_INT(list->data);
231                 gchar *text = NULL, *tmp;
232
233                 if (!gtk_clist_get_text(clist, row, 0, &text))
234                         break;
235
236                 /* NOTE: quick glance in source code of GtkCList
237                  * reveals we should not free the returned 'text' */
238                 
239                 tmp = g_strconcat(text, " ", NULL);
240                 text = tmp;
241                 gtk_entry_append_text(entry, text); 
242                 g_free(text);
243         }
244 #undef INVALID_FILENAME_CHARS
245 }
246
247 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
248                                               GdkEventButton *event, gpointer userdata)
249 {
250         GtkEntry *entry     = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
251         GtkCList *file_list = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
252
253         /* if dir list is selected we clean everything */
254         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
255         gtk_clist_unselect_all(file_list);
256 }
257
258 static GList *filesel_get_multiple_filenames(void)
259 {
260         /* as noted before we are not using the entry text when selecting
261          * multiple files. to much hassle to parse out invalid chars (chars
262          * that need to be escaped). instead we use the file_list. the
263          * entry is only useful for extracting the current directory. */
264         GtkCList *file_list  = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
265         GtkEntry *file_entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
266         GList    *list = NULL, *sel_list;
267         gchar    *cwd, *tmp;     
268         gboolean  separator;
269
270         g_return_val_if_fail(file_list->selection != NULL, NULL);
271
272         tmp = gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
273         tmp = g_strdup(tmp);
274         cwd = g_dirname(tmp);
275         g_free(tmp);
276         g_return_val_if_fail(cwd != NULL, NULL);
277
278         /* only quick way to check the end of a multi byte string for our
279          * separator... */
280         g_strreverse(cwd);
281         separator = 0 == g_strncasecmp(cwd, G_DIR_SEPARATOR_S, strlen(G_DIR_SEPARATOR_S))
282                 ?  TRUE : FALSE;
283         g_strreverse(cwd);
284
285         /* fetch the selected file names */
286         for (sel_list = file_list->selection; sel_list; sel_list = sel_list->next) {
287                 gint   sel = GPOINTER_TO_INT(sel_list->data);
288                 gchar *sel_text = NULL;
289                 gchar *fname = NULL;
290                 
291                 gtk_clist_get_text(file_list, sel, 0, &sel_text);
292                 if (!sel_text) continue;
293                 sel_text = g_strdup(sel_text);
294
295                 if (separator)
296                         fname = g_strconcat(cwd, sel_text, NULL);
297                 else
298                         fname = g_strconcat(cwd, G_DIR_SEPARATOR_S, sel_text, NULL);
299                 
300                 list = g_list_append(list, fname);
301                 g_free(sel_text);
302         }
303         
304         return list;
305 }
306