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