src/filesel.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2002 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 "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                 gchar *fname = NULL;
 145
 146                 list = filesel_get_multiple_filenames();
 147
 148                 if (!list) {
 149                         fname = gtk_file_selection_get_filename (GTK_FILE_SELECTION(filesel));
 150                         list = g_list_append (list, g_strdup(fname));
 151                 }
 152         }
 153
 154         manage_window_focus_out(filesel, NULL, NULL);
 155         gtk_widget_destroy(filesel);
 156         GTK_EVENTS_FLUSH();
 157
 158         return list;
 159 }
 160
 161 static void filesel_create(const gchar *title, gboolean multiple_files)
 162 {
 163         filesel = gtk_file_selection_new(title);
 164         gtk_window_set_position(GTK_WINDOW(filesel), GTK_WIN_POS_CENTER);
 165         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
 166         gtk_window_set_wmclass
 167                 (GTK_WINDOW(filesel), "file_selection", "Sylpheed");
 168
 169         gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button),
 170                            "clicked", GTK_SIGNAL_FUNC(filesel_ok_cb),
 171                            NULL);
 172         gtk_signal_connect
 173                 (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button),
 174                  "clicked", GTK_SIGNAL_FUNC(filesel_cancel_cb),
 175                  NULL);
 176         gtk_signal_connect(GTK_OBJECT(filesel), "delete_event",
 177                            GTK_SIGNAL_FUNC(delete_event), NULL);
 178         gtk_signal_connect(GTK_OBJECT(filesel), "key_press_event",
 179                            GTK_SIGNAL_FUNC(key_pressed), NULL);
 180         MANAGE_WINDOW_SIGNALS_CONNECT(filesel);
 181
 182         if (multiple_files) {
 183                 gtk_clist_set_selection_mode
 184                         (GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list),
 185                          GTK_SELECTION_MULTIPLE);
 186                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 187                                    "select_row",
 188                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
 189                                    NULL);
 190                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 191                                    "unselect_row",
 192                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
 193                                    NULL);
 194                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
 195                                    "select_row",
 196                                    GTK_SIGNAL_FUNC(filesel_dir_list_select_row_multi),
 197                                    NULL);
 198         } else {
 199                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 200                                          "select_row",
 201                                          GTK_SIGNAL_FUNC(filesel_file_list_select_row_single),
 202                                          NULL);
 203                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
 204                                          "select_row",
 205                                          GTK_SIGNAL_FUNC(filesel_dir_list_select_row_single),
 206                                          NULL);
 207         }
 208 }
 209
 210 static void filesel_ok_cb(GtkWidget *widget, gpointer data)
 211 {
 212         filesel_ack = TRUE;
 213         gtk_main_quit();
 214 }
 215
 216 static void filesel_cancel_cb(GtkWidget *widget, gpointer data)
 217 {
 218         filesel_ack = FALSE;
 219         gtk_main_quit();
 220 }
 221
 222 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 223 {
 224         filesel_cancel_cb(NULL, NULL);
 225         if (filesel_oldfilename) {
 226                 g_free(filesel_oldfilename);
 227                 filesel_oldfilename = NULL;
 228         }
 229         return TRUE;
 230 }
 231
 232 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 233 {
 234         if (event && event->keyval == GDK_Escape)
 235                 filesel_cancel_cb(NULL, NULL);
 236 }
 237
 238 /* handle both "select_row" and "unselect_row". note that we're using the
 239  * entry box to put there the selected file names in. we're not using these
 240  * entry box to get the selected file names. instead we use the clist selection.
 241  * the entry box is used only to retrieve dir name. */
 242 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
 243                                                GdkEventButton *event, gpointer userdata)
 244 {
 245         /* simple implementation in which we clear the file entry and refill it */
 246         GList    *list  = clist->selection;
 247         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 248
 249         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 250
 251 #define INVALID_FILENAME_CHARS     " "
 252         for (; list; list = list->next) {
 253                 gint row = GPOINTER_TO_INT(list->data);
 254                 gchar *text = NULL, *tmp;
 255
 256                 if (!gtk_clist_get_text(clist, row, 0, &text))
 257                         break;
 258
 259                 /* NOTE: quick glance in source code of GtkCList
 260                  * reveals we should not free the returned 'text' */
 261
 262                 tmp = g_strconcat(text, " ", NULL);
 263                 text = tmp;
 264                 gtk_entry_append_text(entry, text);
 265                 g_free(text);
 266         }
 267 #undef INVALID_FILENAME_CHARS
 268 }
 269
 270 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
 271                                               GdkEventButton *event, gpointer userdata)
 272 {
 273         GtkEntry *entry     = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 274         GtkCList *file_list = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
 275
 276         /* if dir list is selected we clean everything */
 277         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 278         gtk_clist_unselect_all(file_list);
 279 }
 280
 281 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
 282                                          GdkEventButton *event, gpointer userdata)
 283 {
 284         gchar *text;
 285
 286         if(gtk_clist_get_text(clist, row, 0, &text)) {
 287                 filesel_oldfilename = g_strdup(text);
 288                 debug_print("%s\n", filesel_oldfilename);
 289         } else {
 290                 filesel_oldfilename = NULL;
 291         }
 292 }
 293
 294 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
 295                                         GdkEventButton *event, gpointer userdata)
 296 {
 297         gchar *buf;
 298         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 299
 300         buf = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 301         if(filesel_oldfilename && !(*buf)) {
 302                 gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 303                 gtk_entry_append_text(entry, filesel_oldfilename);
 304         }
 305         g_free(buf);
 306 }
 307
 308 static GList *filesel_get_multiple_filenames(void)
 309 {
 310         /* as noted before we are not using the entry text when selecting
 311          * multiple files. to much hassle to parse out invalid chars (chars
 312          * that need to be escaped). instead we use the file_list. the
 313          * entry is only useful for extracting the current directory. */
 314         GtkCList *file_list  = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
 315         GList    *list = NULL, *sel_list;
 316         gchar    *cwd, *tmp;
 317         gboolean  separator;
 318
 319         g_return_val_if_fail(file_list->selection != NULL, NULL);
 320
 321         tmp = gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
 322         tmp = g_strdup(tmp);
 323         cwd = g_dirname(tmp);
 324         g_free(tmp);
 325         g_return_val_if_fail(cwd != NULL, NULL);
 326
 327         /* only quick way to check the end of a multi byte string for our
 328          * separator... */
 329         g_strreverse(cwd);
 330         separator = 0 == g_strncasecmp(cwd, G_DIR_SEPARATOR_S, strlen(G_DIR_SEPARATOR_S))
 331                 ?  TRUE : FALSE;
 332         g_strreverse(cwd);
 333
 334         /* fetch the selected file names */
 335         for (sel_list = file_list->selection; sel_list; sel_list = sel_list->next) {
 336                 gint   sel = GPOINTER_TO_INT(sel_list->data);
 337                 gchar *sel_text = NULL;
 338                 gchar *fname = NULL;
 339
 340                 gtk_clist_get_text(file_list, sel, 0, &sel_text);
 341                 if (!sel_text) continue;
 342                 sel_text = g_strdup(sel_text);
 343
 344                 if (separator)
 345                         fname = g_strconcat(cwd, sel_text, NULL);
 346                 else
 347                         fname = g_strconcat(cwd, G_DIR_SEPARATOR_S, sel_text, NULL);
 348
 349                 list = g_list_append(list, fname);
 350                 g_free(sel_text);
 351         }
 352
 353         g_free(cwd);
 354
 355         return list;
 356 }
 357