inital gtk2 patch
[claws.git] / src / gtk / 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 "sylpheed.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 gboolean 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(sylpheed_get_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                 const 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(sylpheed_get_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                 const 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                 /* store dir of first entry */
160                 if (NULL != (fname = list->data) && *fname) {
161                         gchar *dir;
162                         if (NULL != (dir = g_dirname(fname))) {
163                                 g_free(cwd);
164                                 cwd = g_strconcat(dir, G_DIR_SEPARATOR_S, NULL);
165                                 g_free(dir); 
166                         }
167                 }
168         }
169
170         manage_window_focus_out(filesel, NULL, NULL);
171         gtk_widget_destroy(filesel);
172         GTK_EVENTS_FLUSH();
173
174         return list;
175 }
176
177 static void filesel_create(const gchar *title, gboolean multiple_files)
178 {
179         filesel = gtk_file_selection_new(title);
180         gtk_window_set_position(GTK_WINDOW(filesel), GTK_WIN_POS_CENTER);
181         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
182         gtk_window_set_wmclass
183                 (GTK_WINDOW(filesel), "file_selection", "Sylpheed");
184
185         g_signal_connect(G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button),
186                          "clicked", G_CALLBACK(filesel_ok_cb),
187                          NULL);
188         g_signal_connect
189                 (G_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button),
190                  "clicked", G_CALLBACK(filesel_cancel_cb),
191                  NULL);
192         g_signal_connect(G_OBJECT(filesel), "delete_event",
193                          G_CALLBACK(delete_event), NULL);
194         g_signal_connect(G_OBJECT(filesel), "key_press_event",
195                          G_CALLBACK(key_pressed), NULL);
196         MANAGE_WINDOW_SIGNALS_CONNECT(filesel);
197
198         if (multiple_files) {
199                 gtk_clist_set_selection_mode
200                         (GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list),
201                          GTK_SELECTION_MULTIPLE);
202                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
203                                    "select_row", 
204                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
205                                    NULL);
206                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
207                                    "unselect_row",
208                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
209                                    NULL);
210                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
211                                    "select_row",
212                                    GTK_SIGNAL_FUNC(filesel_dir_list_select_row_multi),
213                                    NULL);
214         } else {
215                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
216                                          "select_row", 
217                                          GTK_SIGNAL_FUNC(filesel_file_list_select_row_single),
218                                          NULL);
219                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
220                                          "select_row",
221                                          GTK_SIGNAL_FUNC(filesel_dir_list_select_row_single),
222                                          NULL);
223         }
224 }
225
226 static void filesel_ok_cb(GtkWidget *widget, gpointer data)
227 {
228         filesel_ack = TRUE;
229         filesel_fin = TRUE;
230 }
231
232 static void filesel_cancel_cb(GtkWidget *widget, gpointer data)
233 {
234         filesel_ack = FALSE;
235         filesel_fin = TRUE;
236 }
237
238 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
239 {
240         filesel_cancel_cb(NULL, NULL);
241         if (filesel_oldfilename) {
242                 g_free(filesel_oldfilename);
243                 filesel_oldfilename = NULL;
244         }
245         return TRUE;
246 }
247
248 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
249 {
250         if (event && event->keyval == GDK_Escape)
251                 filesel_cancel_cb(NULL, NULL);
252         return FALSE;
253 }
254
255 /* handle both "select_row" and "unselect_row". note that we're using the
256  * entry box to put there the selected file names in. we're not using these
257  * entry box to get the selected file names. instead we use the clist selection.
258  * the entry box is used only to retrieve dir name. */
259 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
260                                                GdkEventButton *event, gpointer userdata)
261 {
262         /* simple implementation in which we clear the file entry and refill it */
263         GList    *list  = clist->selection;
264         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
265
266         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
267
268 #define INVALID_FILENAME_CHARS     " "
269         for (; list; list = list->next) {
270                 gint row = GPOINTER_TO_INT(list->data);
271                 gchar *text = NULL, *tmp;
272
273                 if (!gtk_clist_get_text(clist, row, 0, &text))
274                         break;
275
276                 /* NOTE: quick glance in source code of GtkCList
277                  * reveals we should not free the returned 'text' */
278                 
279                 tmp = g_strconcat(text, " ", NULL);
280                 text = tmp;
281                 gtk_entry_append_text(entry, text); 
282                 g_free(text);
283         }
284 #undef INVALID_FILENAME_CHARS
285 }
286
287 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
288                                               GdkEventButton *event, gpointer userdata)
289 {
290         GtkEntry *entry     = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
291         GtkCList *file_list = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
292
293         /* if dir list is selected we clean everything */
294         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
295         gtk_clist_unselect_all(file_list);
296 }
297
298 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
299                                          GdkEventButton *event, gpointer userdata)
300 {
301         gchar *text;
302
303         if(gtk_clist_get_text(clist, row, 0, &text)) {
304                 filesel_oldfilename = g_strdup(text);
305                 debug_print("%s\n", filesel_oldfilename);
306         } else {
307                 filesel_oldfilename = NULL;
308         }
309 }
310
311 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
312                                         GdkEventButton *event, gpointer userdata)
313 {
314         gchar *buf;
315         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
316
317         buf = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
318         if(filesel_oldfilename && !(*buf)) {
319                 gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
320                 gtk_entry_append_text(entry, filesel_oldfilename);
321         }
322         g_free(buf);
323 }
324
325 static GList *filesel_get_multiple_filenames(void)
326 {
327         /* as noted before we are not using the entry text when selecting
328          * multiple files. to much hassle to parse out invalid chars (chars
329          * that need to be escaped). instead we use the file_list. the
330          * entry is only useful for extracting the current directory. */
331         GtkCList *file_list  = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
332         GList    *list = NULL, *sel_list;
333         gchar    *cwd;   
334         gboolean  separator;
335
336         g_return_val_if_fail(file_list->selection != NULL, NULL);
337
338         cwd = g_dirname(gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel)));
339         g_return_val_if_fail(cwd != NULL, NULL);
340
341         /* only quick way to check the end of a multi byte string for our
342          * separator... */
343         g_strreverse(cwd);
344         separator = 0 == g_strncasecmp(cwd, G_DIR_SEPARATOR_S, strlen(G_DIR_SEPARATOR_S))
345                 ?  TRUE : FALSE;
346         g_strreverse(cwd);
347
348         /* fetch the selected file names */
349         for (sel_list = file_list->selection; sel_list; sel_list = sel_list->next) {
350                 gint   sel = GPOINTER_TO_INT(sel_list->data);
351                 gchar *sel_text = NULL;
352                 gchar *fname = NULL;
353                 
354                 gtk_clist_get_text(file_list, sel, 0, &sel_text);
355                 if (!sel_text) continue;
356                 sel_text = g_strdup(sel_text);
357
358                 if (separator)
359                         fname = g_strconcat(cwd, sel_text, NULL);
360                 else
361                         fname = g_strconcat(cwd, G_DIR_SEPARATOR_S, sel_text, NULL);
362                 
363                 list = g_list_append(list, fname);
364                 g_free(sel_text);
365         }
366         
367         g_free(cwd);
368         
369         return list;
370 }
371