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
  34 static GtkWidget *filesel;
  35 static gboolean filesel_ack;
  36 static gchar *filesel_oldfilename = NULL;
  37
  38 static void filesel_create(const gchar *title, gboolean multiple_files);
  39 static void filesel_ok_cb(GtkWidget *widget, gpointer data);
  40 static void filesel_cancel_cb(GtkWidget *widget, gpointer data);
  41 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data);
  42 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data);
  43
  44 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
  45                                                GdkEventButton *event, gpointer userdata);
  46 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
  47                                                 GdkEventButton *event, gpointer userdata);
  48
  49 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
  50                                               GdkEventButton *event, gpointer userdata);
  51 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
  52                                                GdkEventButton *event, gpointer userdata);
  53
  54 static GList *filesel_get_multiple_filenames(void);
  55
  56 gchar *filesel_select_file(const gchar *title, const gchar *file)
  57 {
  58         static gchar *filename = NULL;
  59         static gchar *cwd = NULL;
  60
  61         filesel_create(title, FALSE);
  62
  63         manage_window_set_transient(GTK_WINDOW(filesel));
  64
  65         if (filename) {
  66                 g_free(filename);
  67                 filename = NULL;
  68         }
  69
  70         if (!cwd)
  71                 cwd = g_strconcat(startup_dir, G_DIR_SEPARATOR_S, NULL);
  72
  73         gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel), cwd);
  74
  75         if (file) {
  76                 gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel),
  77                                                 file);
  78                 filesel_oldfilename = g_strdup(file);
  79         }
  80
  81         gtk_widget_show(filesel);
  82
  83         gtk_main();
  84
  85         if (filesel_ack) {
  86                 gchar *str;
  87
  88                 str = gtk_file_selection_get_filename
  89                         (GTK_FILE_SELECTION(filesel));
  90                 if (str && str[0] != '\0') {
  91                         gchar *dir;
  92
  93                         filename = g_strdup(str);
  94                         dir = g_dirname(str);
  95                         g_free(cwd);
  96                         cwd = g_strconcat(dir, G_DIR_SEPARATOR_S, NULL);
  97                         g_free(dir);
  98                 }
  99         }
 100
 101         manage_window_focus_out(filesel, NULL, NULL);
 102         gtk_widget_destroy(filesel);
 103         GTK_EVENTS_FLUSH();
 104
 105         return filename;
 106 }
 107
 108 GList *filesel_select_multiple_files(const gchar *title, const gchar *file)
 109 {
 110         /* ALF - sorry for the exuberant code duping... need to
 111          * be cleaned up. */
 112         static gchar *filename = NULL;
 113         static gchar *cwd = NULL;
 114         GList        *list = NULL;
 115
 116         filesel_create(title, TRUE);
 117
 118         manage_window_set_transient(GTK_WINDOW(filesel));
 119
 120         if (filename) {
 121                 g_free(filename);
 122                 filename = NULL;
 123         }
 124
 125         if (!cwd)
 126                 cwd = g_strconcat(startup_dir, G_DIR_SEPARATOR_S, NULL);
 127
 128         gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel), cwd);
 129
 130         if (file)
 131                 gtk_file_selection_set_filename(GTK_FILE_SELECTION(filesel),
 132                                                 file);
 133         gtk_widget_show(filesel);
 134
 135         gtk_main();
 136
 137         if (filesel_ack)
 138                 list = filesel_get_multiple_filenames();
 139
 140         manage_window_focus_out(filesel, NULL, NULL);
 141         gtk_widget_destroy(filesel);
 142         GTK_EVENTS_FLUSH();
 143
 144         return list;
 145 }
 146
 147 static void filesel_create(const gchar *title, gboolean multiple_files)
 148 {
 149         filesel = gtk_file_selection_new(title);
 150         gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button),
 151                            "clicked", GTK_SIGNAL_FUNC(filesel_ok_cb),
 152                            NULL);
 153         gtk_signal_connect
 154                 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button),
 155                  "clicked", GTK_SIGNAL_FUNC(filesel_cancel_cb),
 156                  NULL);
 157         gtk_signal_connect(GTK_OBJECT(filesel), "delete_event",
 158                            GTK_SIGNAL_FUNC(delete_event), NULL);
 159         gtk_signal_connect(GTK_OBJECT(filesel), "key_press_event",
 160                            GTK_SIGNAL_FUNC(key_pressed), NULL);
 161         gtk_signal_connect(GTK_OBJECT(filesel), "focus_in_event",
 162                            GTK_SIGNAL_FUNC(manage_window_focus_in), NULL);
 163         gtk_signal_connect(GTK_OBJECT(filesel), "focus_out_event",
 164                            GTK_SIGNAL_FUNC(manage_window_focus_out), NULL);
 165
 166         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
 167
 168         if (multiple_files) {
 169                 gtk_clist_set_selection_mode
 170                         (GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list),
 171                          GTK_SELECTION_MULTIPLE);
 172                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 173                                    "select_row",
 174                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
 175                                    NULL);
 176                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 177                                    "unselect_row",
 178                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
 179                                    NULL);
 180                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
 181                                    "select_row",
 182                                    GTK_SIGNAL_FUNC(filesel_dir_list_select_row_multi),
 183                                    NULL);
 184         } else {
 185                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 186                                    "select_row",
 187                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_single),
 188                                    NULL);
 189                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
 190                                    "select_row",
 191                                    GTK_SIGNAL_FUNC(filesel_dir_list_select_row_single),
 192                                    NULL);
 193         }
 194 }
 195
 196 static void filesel_ok_cb(GtkWidget *widget, gpointer data)
 197 {
 198         filesel_ack = TRUE;
 199         g_free(filesel_oldfilename);
 200         gtk_main_quit();
 201 }
 202
 203 static void filesel_cancel_cb(GtkWidget *widget, gpointer data)
 204 {
 205         filesel_ack = FALSE;
 206         g_free(filesel_oldfilename);
 207         gtk_main_quit();
 208 }
 209
 210 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 211 {
 212         filesel_cancel_cb(NULL, NULL);
 213         g_free(filesel_oldfilename);
 214         return TRUE;
 215 }
 216
 217 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 218 {
 219         if (event && event->keyval == GDK_Escape)
 220                 filesel_cancel_cb(NULL, NULL);
 221 }
 222
 223 /* handle both "select_row" and "unselect_row". note that we're using the
 224  * entry box to put there the selected file names in. we're not using these
 225  * entry box to get the selected file names. instead we use the clist selection.
 226  * the entry box is used only to retrieve dir name. */
 227 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
 228                                                GdkEventButton *event, gpointer userdata)
 229 {
 230         /* simple implementation in which we clear the file entry and refill it */
 231         GList    *list  = clist->selection;
 232         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 233
 234         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 235
 236 #define INVALID_FILENAME_CHARS     " "
 237         for (; list; list = list->next) {
 238                 gint row = GPOINTER_TO_INT(list->data);
 239                 gchar *text = NULL, *tmp;
 240
 241                 if (!gtk_clist_get_text(clist, row, 0, &text))
 242                         break;
 243
 244                 /* NOTE: quick glance in source code of GtkCList
 245                  * reveals we should not free the returned 'text' */
 246
 247                 tmp = g_strconcat(text, " ", NULL);
 248                 text = tmp;
 249                 gtk_entry_append_text(entry, text);
 250                 g_free(text);
 251         }
 252 #undef INVALID_FILENAME_CHARS
 253 }
 254
 255 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
 256                                               GdkEventButton *event, gpointer userdata)
 257 {
 258         GtkEntry *entry     = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 259         GtkCList *file_list = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
 260
 261         /* if dir list is selected we clean everything */
 262         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 263         gtk_clist_unselect_all(file_list);
 264 }
 265
 266 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
 267                                                 GdkEventButton *event, gpointer userdata)
 268 {
 269         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 270
 271         g_free(filesel_oldfilename);
 272         filesel_oldfilename = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 273 }
 274
 275 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
 276                                                GdkEventButton *event, gpointer userdata)
 277 {
 278         GtkEntry *entry     = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 279
 280         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 281         if(filesel_oldfilename) {
 282                 gtk_entry_append_text(entry, filesel_oldfilename);
 283         }
 284 }
 285
 286 static GList *filesel_get_multiple_filenames(void)
 287 {
 288         /* as noted before we are not using the entry text when selecting
 289          * multiple files. to much hassle to parse out invalid chars (chars
 290          * that need to be escaped). instead we use the file_list. the
 291          * entry is only useful for extracting the current directory. */
 292         GtkCList *file_list  = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
 293         GtkEntry *file_entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 294         GList    *list = NULL, *sel_list;
 295         gchar    *cwd, *tmp;
 296         gboolean  separator;
 297
 298         g_return_val_if_fail(file_list->selection != NULL, NULL);
 299
 300         tmp = gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
 301         tmp = g_strdup(tmp);
 302         cwd = g_dirname(tmp);
 303         g_free(tmp);
 304         g_return_val_if_fail(cwd != NULL, NULL);
 305
 306         /* only quick way to check the end of a multi byte string for our
 307          * separator... */
 308         g_strreverse(cwd);
 309         separator = 0 == g_strncasecmp(cwd, G_DIR_SEPARATOR_S, strlen(G_DIR_SEPARATOR_S))
 310                 ?  TRUE : FALSE;
 311         g_strreverse(cwd);
 312
 313         /* fetch the selected file names */
 314         for (sel_list = file_list->selection; sel_list; sel_list = sel_list->next) {
 315                 gint   sel = GPOINTER_TO_INT(sel_list->data);
 316                 gchar *sel_text = NULL;
 317                 gchar *fname = NULL;
 318
 319                 gtk_clist_get_text(file_list, sel, 0, &sel_text);
 320                 if (!sel_text) continue;
 321                 sel_text = g_strdup(sel_text);
 322
 323                 if (separator)
 324                         fname = g_strconcat(cwd, sel_text, NULL);
 325                 else
 326                         fname = g_strconcat(cwd, G_DIR_SEPARATOR_S, sel_text, NULL);
 327
 328                 list = g_list_append(list, fname);
 329                 g_free(sel_text);
 330         }
 331
 332         return list;
 333 }
 334