* src/filesel.c
[claws.git] / src / filesel.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2003 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/gtkentry.h>
25 #include <gtk/gtkmain.h>
26 #include <gtk/gtksignal.h>
27 #include <gtk/gtkeditable.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 gboolean filesel_fin;
38 static gchar *filesel_oldfilename;
39
40 static void filesel_create(const gchar *title, gboolean multiple_files);
41 static void filesel_ok_cb(GtkWidget *widget, gpointer data);
42 static void filesel_cancel_cb(GtkWidget *widget, gpointer data);
43 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data);
44 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data);
45
46 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
47                                                GdkEventButton *event, gpointer userdata);
48 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
49                                                 GdkEventButton *event, gpointer userdata);
50
51 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
52                                               GdkEventButton *event, gpointer userdata);
53 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
54                                                GdkEventButton *event, gpointer userdata);
55
56 static GList *filesel_get_multiple_filenames(void);
57
58 gchar *filesel_select_file(const gchar *title, const gchar *file)
59 {
60         static gchar *filename = NULL;
61         static gchar *cwd = NULL;
62
63         filesel_create(title, FALSE);
64
65         manage_window_set_transient(GTK_WINDOW(filesel));
66
67         if (filename) {
68                 g_free(filename);
69                 filename = NULL;
70         }
71
72         if (!cwd)
73                 cwd = g_strconcat(startup_dir, G_DIR_SEPARATOR_S, NULL);
74
75         gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel), cwd);
76
77         if (file) {
78                 gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel),
79                                                 file);
80                 filesel_oldfilename = g_strdup(file);
81         } else {
82                 filesel_oldfilename = NULL;
83         }
84
85         gtk_widget_show(filesel);
86
87         filesel_ack = filesel_fin = FALSE;
88
89         while (filesel_fin == FALSE)
90                 gtk_main_iteration();
91
92         if (filesel_ack) {
93                 gchar *str;
94
95                 str = gtk_file_selection_get_filename
96                         (GTK_FILE_SELECTION(filesel));
97                 if (str && str[0] != '\0') {
98                         gchar *dir;
99
100                         filename = g_strdup(str);
101                         dir = g_dirname(str);
102                         g_free(cwd);
103                         cwd = g_strconcat(dir, G_DIR_SEPARATOR_S, NULL);
104                         g_free(dir);
105                 }
106         }
107
108         if (filesel_oldfilename) 
109                 g_free(filesel_oldfilename);
110
111         manage_window_focus_out(filesel, NULL, NULL);
112         gtk_widget_destroy(filesel);
113         GTK_EVENTS_FLUSH();
114
115         return filename;
116 }
117
118 GList *filesel_select_multiple_files(const gchar *title, const gchar *file)
119 {
120         /* ALF - sorry for the exuberant code duping... need to 
121          * be cleaned up. */
122         static gchar *filename = NULL;
123         static gchar *cwd = NULL;
124         GList        *list = NULL;
125
126         filesel_create(title, TRUE);
127
128         manage_window_set_transient(GTK_WINDOW(filesel));
129
130         if (filename) {
131                 g_free(filename);
132                 filename = NULL;
133         }
134
135         if (!cwd)
136                 cwd = g_strconcat(startup_dir, G_DIR_SEPARATOR_S, NULL);
137
138         gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel), cwd);
139
140         if (file)
141                 gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel),
142                                                 file);
143         gtk_widget_show(filesel);
144
145         filesel_ack = filesel_fin = FALSE;
146
147         while (filesel_fin == FALSE)
148                 gtk_main_iteration();
149
150         if (filesel_ack) {
151                 gchar *fname = NULL;
152
153                 list = filesel_get_multiple_filenames();
154
155                 if (!list) {
156                         fname = gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
157                         list = g_list_append(list, g_strdup(fname));
158                 }
159         }
160
161         manage_window_focus_out(filesel, NULL, NULL);
162         gtk_widget_destroy(filesel);
163         GTK_EVENTS_FLUSH();
164
165         return list;
166 }
167
168 static void filesel_create(const gchar *title, gboolean multiple_files)
169 {
170         filesel = gtk_file_selection_new(title);
171         gtk_window_set_position(GTK_WINDOW(filesel), GTK_WIN_POS_CENTER);
172         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
173         gtk_window_set_wmclass
174                 (GTK_WINDOW(filesel), "file_selection", "Sylpheed");
175
176         gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button),
177                            "clicked", GTK_SIGNAL_FUNC(filesel_ok_cb),
178                            NULL);
179         gtk_signal_connect
180                 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button),
181                  "clicked", GTK_SIGNAL_FUNC(filesel_cancel_cb),
182                  NULL);
183         gtk_signal_connect(GTK_OBJECT(filesel), "delete_event",
184                            GTK_SIGNAL_FUNC(delete_event), NULL);
185         gtk_signal_connect(GTK_OBJECT(filesel), "key_press_event",
186                            GTK_SIGNAL_FUNC(key_pressed), NULL);
187         MANAGE_WINDOW_SIGNALS_CONNECT(filesel);
188
189         if (multiple_files) {
190                 gtk_clist_set_selection_mode
191                         (GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list),
192                          GTK_SELECTION_MULTIPLE);
193                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
194                                    "select_row", 
195                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
196                                    NULL);
197                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
198                                    "unselect_row",
199                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
200                                    NULL);
201                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
202                                    "select_row",
203                                    GTK_SIGNAL_FUNC(filesel_dir_list_select_row_multi),
204                                    NULL);
205         } else {
206                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
207                                          "select_row", 
208                                          GTK_SIGNAL_FUNC(filesel_file_list_select_row_single),
209                                          NULL);
210                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
211                                          "select_row",
212                                          GTK_SIGNAL_FUNC(filesel_dir_list_select_row_single),
213                                          NULL);
214         }
215 }
216
217 static void filesel_ok_cb(GtkWidget *widget, gpointer data)
218 {
219         filesel_ack = TRUE;
220         filesel_fin = TRUE;
221 }
222
223 static void filesel_cancel_cb(GtkWidget *widget, gpointer data)
224 {
225         filesel_ack = FALSE;
226         filesel_fin = TRUE;
227 }
228
229 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
230 {
231         filesel_cancel_cb(NULL, NULL);
232         if (filesel_oldfilename) {
233                 g_free(filesel_oldfilename);
234                 filesel_oldfilename = NULL;
235         }
236         return TRUE;
237 }
238
239 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
240 {
241         if (event && event->keyval == GDK_Escape)
242                 filesel_cancel_cb(NULL, NULL);
243 }
244
245 /* handle both "select_row" and "unselect_row". note that we're using the
246  * entry box to put there the selected file names in. we're not using these
247  * entry box to get the selected file names. instead we use the clist selection.
248  * the entry box is used only to retrieve dir name. */
249 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
250                                                GdkEventButton *event, gpointer userdata)
251 {
252         /* simple implementation in which we clear the file entry and refill it */
253         GList    *list  = clist->selection;
254         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
255
256         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
257
258 #define INVALID_FILENAME_CHARS     " "
259         for (; list; list = list->next) {
260                 gint row = GPOINTER_TO_INT(list->data);
261                 gchar *text = NULL, *tmp;
262
263                 if (!gtk_clist_get_text(clist, row, 0, &text))
264                         break;
265
266                 /* NOTE: quick glance in source code of GtkCList
267                  * reveals we should not free the returned 'text' */
268                 
269                 tmp = g_strconcat(text, " ", NULL);
270                 text = tmp;
271                 gtk_entry_append_text(entry, text); 
272                 g_free(text);
273         }
274 #undef INVALID_FILENAME_CHARS
275 }
276
277 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
278                                               GdkEventButton *event, gpointer userdata)
279 {
280         GtkEntry *entry     = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
281         GtkCList *file_list = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
282
283         /* if dir list is selected we clean everything */
284         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
285         gtk_clist_unselect_all(file_list);
286 }
287
288 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
289                                          GdkEventButton *event, gpointer userdata)
290 {
291         gchar *text;
292
293         if(gtk_clist_get_text(clist, row, 0, &text)) {
294                 filesel_oldfilename = g_strdup(text);
295                 debug_print("%s\n", filesel_oldfilename);
296         } else {
297                 filesel_oldfilename = NULL;
298         }
299 }
300
301 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
302                                         GdkEventButton *event, gpointer userdata)
303 {
304         gchar *buf;
305         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
306
307         buf = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
308         if(filesel_oldfilename && !(*buf)) {
309                 gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
310                 gtk_entry_append_text(entry, filesel_oldfilename);
311         }
312         g_free(buf);
313 }
314
315 static GList *filesel_get_multiple_filenames(void)
316 {
317         /* as noted before we are not using the entry text when selecting
318          * multiple files. to much hassle to parse out invalid chars (chars
319          * that need to be escaped). instead we use the file_list. the
320          * entry is only useful for extracting the current directory. */
321         GtkCList *file_list  = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
322         GList    *list = NULL, *sel_list;
323         gchar    *cwd, *tmp;     
324         gboolean  separator;
325
326         g_return_val_if_fail(file_list->selection != NULL, NULL);
327
328         tmp = gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
329         tmp = g_strdup(tmp);
330         cwd = g_dirname(tmp);
331         g_free(tmp);
332         g_return_val_if_fail(cwd != NULL, NULL);
333
334         /* only quick way to check the end of a multi byte string for our
335          * separator... */
336         g_strreverse(cwd);
337         separator = 0 == g_strncasecmp(cwd, G_DIR_SEPARATOR_S, strlen(G_DIR_SEPARATOR_S))
338                 ?  TRUE : FALSE;
339         g_strreverse(cwd);
340
341         /* fetch the selected file names */
342         for (sel_list = file_list->selection; sel_list; sel_list = sel_list->next) {
343                 gint   sel = GPOINTER_TO_INT(sel_list->data);
344                 gchar *sel_text = NULL;
345                 gchar *fname = NULL;
346                 
347                 gtk_clist_get_text(file_list, sel, 0, &sel_text);
348                 if (!sel_text) continue;
349                 sel_text = g_strdup(sel_text);
350
351                 if (separator)
352                         fname = g_strconcat(cwd, sel_text, NULL);
353                 else
354                         fname = g_strconcat(cwd, G_DIR_SEPARATOR_S, sel_text, NULL);
355                 
356                 list = g_list_append(list, fname);
357                 g_free(sel_text);
358         }
359         
360         g_free(cwd);
361         
362         return list;
363 }
364