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