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 gboolean 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                 const 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                 const 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                 /* store dir of first entry */
 160                 if (NULL != (fname = list->data) && *fname) {
 161                         gchar *dir;
 162                         if (NULL != (dir = g_dirname(fname))) {
 163                                 g_free(cwd);
 164                                 cwd = g_strconcat(dir, G_DIR_SEPARATOR_S, NULL);
 165                                 g_free(dir);
 166                         }
 167                 }
 168         }
 169
 170         manage_window_focus_out(filesel, NULL, NULL);
 171         gtk_widget_destroy(filesel);
 172         GTK_EVENTS_FLUSH();
 173
 174         return list;
 175 }
 176
 177 static void filesel_create(const gchar *title, gboolean multiple_files)
 178 {
 179         filesel = gtk_file_selection_new(title);
 180         gtk_window_set_position(GTK_WINDOW(filesel), GTK_WIN_POS_CENTER);
 181         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
 182         gtk_window_set_wmclass
 183                 (GTK_WINDOW(filesel), "file_selection", "Sylpheed");
 184
 185         g_signal_connect(G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button),
 186                          "clicked", G_CALLBACK(filesel_ok_cb),
 187                          NULL);
 188         g_signal_connect
 189                 (G_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button),
 190                  "clicked", G_CALLBACK(filesel_cancel_cb),
 191                  NULL);
 192         g_signal_connect(G_OBJECT(filesel), "delete_event",
 193                          G_CALLBACK(delete_event), NULL);
 194         g_signal_connect(G_OBJECT(filesel), "key_press_event",
 195                          G_CALLBACK(key_pressed), NULL);
 196         MANAGE_WINDOW_SIGNALS_CONNECT(filesel);
 197
 198         if (multiple_files) {
 199                 gtk_clist_set_selection_mode
 200                         (GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list),
 201                          GTK_SELECTION_MULTIPLE);
 202                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 203                                    "select_row",
 204                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
 205                                    NULL);
 206                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 207                                    "unselect_row",
 208                                    GTK_SIGNAL_FUNC(filesel_file_list_select_row_multi),
 209                                    NULL);
 210                 gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
 211                                    "select_row",
 212                                    GTK_SIGNAL_FUNC(filesel_dir_list_select_row_multi),
 213                                    NULL);
 214         } else {
 215                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->file_list),
 216                                          "select_row",
 217                                          GTK_SIGNAL_FUNC(filesel_file_list_select_row_single),
 218                                          NULL);
 219                 gtk_signal_connect_after(GTK_OBJECT(GTK_FILE_SELECTION(filesel)->dir_list),
 220                                          "select_row",
 221                                          GTK_SIGNAL_FUNC(filesel_dir_list_select_row_single),
 222                                          NULL);
 223         }
 224 }
 225
 226 static void filesel_ok_cb(GtkWidget *widget, gpointer data)
 227 {
 228         filesel_ack = TRUE;
 229         filesel_fin = TRUE;
 230 }
 231
 232 static void filesel_cancel_cb(GtkWidget *widget, gpointer data)
 233 {
 234         filesel_ack = FALSE;
 235         filesel_fin = TRUE;
 236 }
 237
 238 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 239 {
 240         filesel_cancel_cb(NULL, NULL);
 241         if (filesel_oldfilename) {
 242                 g_free(filesel_oldfilename);
 243                 filesel_oldfilename = NULL;
 244         }
 245         return TRUE;
 246 }
 247
 248 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 249 {
 250         if (event && event->keyval == GDK_Escape)
 251                 filesel_cancel_cb(NULL, NULL);
 252         return FALSE;
 253 }
 254
 255 /* handle both "select_row" and "unselect_row". note that we're using the
 256  * entry box to put there the selected file names in. we're not using these
 257  * entry box to get the selected file names. instead we use the clist selection.
 258  * the entry box is used only to retrieve dir name. */
 259 static void filesel_file_list_select_row_multi(GtkCList *clist, gint row, gint col,
 260                                                GdkEventButton *event, gpointer userdata)
 261 {
 262         /* simple implementation in which we clear the file entry and refill it */
 263         GList    *list  = clist->selection;
 264         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 265
 266         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 267
 268 #define INVALID_FILENAME_CHARS     " "
 269         for (; list; list = list->next) {
 270                 gint row = GPOINTER_TO_INT(list->data);
 271                 gchar *text = NULL, *tmp;
 272
 273                 if (!gtk_clist_get_text(clist, row, 0, &text))
 274                         break;
 275
 276                 /* NOTE: quick glance in source code of GtkCList
 277                  * reveals we should not free the returned 'text' */
 278
 279                 tmp = g_strconcat(text, " ", NULL);
 280                 text = tmp;
 281                 gtk_entry_append_text(entry, text);
 282                 g_free(text);
 283         }
 284 #undef INVALID_FILENAME_CHARS
 285 }
 286
 287 static void filesel_dir_list_select_row_multi(GtkCList *clist, gint row, gint col,
 288                                               GdkEventButton *event, gpointer userdata)
 289 {
 290         GtkEntry *entry     = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 291         GtkCList *file_list = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
 292
 293         /* if dir list is selected we clean everything */
 294         gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 295         gtk_clist_unselect_all(file_list);
 296 }
 297
 298 static void filesel_file_list_select_row_single(GtkCList *clist, gint row, gint col,
 299                                          GdkEventButton *event, gpointer userdata)
 300 {
 301         gchar *text;
 302
 303         if(gtk_clist_get_text(clist, row, 0, &text)) {
 304                 filesel_oldfilename = g_strdup(text);
 305                 debug_print("%s\n", filesel_oldfilename);
 306         } else {
 307                 filesel_oldfilename = NULL;
 308         }
 309 }
 310
 311 static void filesel_dir_list_select_row_single(GtkCList *clist, gint row, gint col,
 312                                         GdkEventButton *event, gpointer userdata)
 313 {
 314         gchar *buf;
 315         GtkEntry *entry = GTK_ENTRY(GTK_FILE_SELECTION(filesel)->selection_entry);
 316
 317         buf = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 318         if(filesel_oldfilename && !(*buf)) {
 319                 gtk_editable_delete_text(GTK_EDITABLE(entry), 0, -1);
 320                 gtk_entry_append_text(entry, filesel_oldfilename);
 321         }
 322         g_free(buf);
 323 }
 324
 325 static GList *filesel_get_multiple_filenames(void)
 326 {
 327         /* as noted before we are not using the entry text when selecting
 328          * multiple files. to much hassle to parse out invalid chars (chars
 329          * that need to be escaped). instead we use the file_list. the
 330          * entry is only useful for extracting the current directory. */
 331         GtkCList *file_list  = GTK_CLIST(GTK_FILE_SELECTION(filesel)->file_list);
 332         GList    *list = NULL, *sel_list;
 333         gchar    *cwd;
 334         gboolean  separator;
 335
 336         g_return_val_if_fail(file_list->selection != NULL, NULL);
 337
 338         cwd = g_dirname(gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel)));
 339         g_return_val_if_fail(cwd != NULL, NULL);
 340
 341         /* only quick way to check the end of a multi byte string for our
 342          * separator... */
 343         g_strreverse(cwd);
 344         separator = 0 == g_strncasecmp(cwd, G_DIR_SEPARATOR_S, strlen(G_DIR_SEPARATOR_S))
 345                 ?  TRUE : FALSE;
 346         g_strreverse(cwd);
 347
 348         /* fetch the selected file names */
 349         for (sel_list = file_list->selection; sel_list; sel_list = sel_list->next) {
 350                 gint   sel = GPOINTER_TO_INT(sel_list->data);
 351                 gchar *sel_text = NULL;
 352                 gchar *fname = NULL;
 353
 354                 gtk_clist_get_text(file_list, sel, 0, &sel_text);
 355                 if (!sel_text) continue;
 356                 sel_text = g_strdup(sel_text);
 357
 358                 if (separator)
 359                         fname = g_strconcat(cwd, sel_text, NULL);
 360                 else
 361                         fname = g_strconcat(cwd, G_DIR_SEPARATOR_S, sel_text, NULL);
 362
 363                 list = g_list_append(list, fname);
 364                 g_free(sel_text);
 365         }
 366
 367         g_free(cwd);
 368
 369         return list;
 370 }
 371