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