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 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(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                 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                 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