src/prefs_display_header.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2005 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <errno.h>
  34
  35 #include "prefs_gtk.h"
  36 #include "prefs_display_header.h"
  37 #include "prefs_common.h"
  38 #include "manage_window.h"
  39 #include "alertpanel.h"
  40 #include "displayheader.h"
  41 #include "utils.h"
  42 #include "gtkutils.h"
  43
  44 enum {
  45         PREFS_HDR_HEADER,
  46         PREFS_HDR_DATA,
  47         N_PREFS_HDR_COLUMNS
  48 };
  49
  50 static struct DisplayHeader {
  51         GtkWidget *window;
  52
  53         GtkWidget *ok_btn;
  54         GtkWidget *cancel_btn;
  55
  56         GtkWidget *hdr_combo;
  57         GtkWidget *hdr_entry;
  58         GtkWidget *key_check;
  59         GtkWidget *headers_list_view;
  60         GtkWidget *hidden_headers_list_view;
  61
  62         GtkWidget *other_headers;
  63 } dispheader;
  64
  65 /* widget creating functions */
  66 static void prefs_display_header_create (void);
  67
  68 static void prefs_display_header_set_dialog     (void);
  69 static void prefs_display_header_set_list       (void);
  70 static void prefs_display_header_list_view_set_row      (gboolean hidden);
  71
  72 /* callback functions */
  73 static void prefs_display_header_register_cb    (GtkButton      *btn,
  74                                                  gpointer        hidden_data);
  75 static void prefs_display_header_delete_cb      (GtkButton      *btn,
  76                                                  gpointer        list_view_data);
  77 static void prefs_display_header_up             (void);
  78 static void prefs_display_header_down           (void);
  79
  80 static gboolean prefs_display_header_key_pressed        (GtkWidget      *widget,
  81                                                          GdkEventKey    *event,
  82                                                          gpointer        data);
  83 static void prefs_display_header_ok             (void);
  84 static void prefs_display_header_cancel         (void);
  85 static gint prefs_display_header_deleted        (GtkWidget      *widget,
  86                                                  GdkEventAny    *event,
  87                                                  gpointer        data);
  88
  89
  90 static GtkListStore *prefs_display_header_create_store  (void);
  91 static void prefs_display_header_insert_header          (GtkListStore *store,
  92                                                          gchar *name,
  93                                                          DisplayHeaderProp *dp);
  94 static GtkWidget *prefs_display_header_list_view_create (const gchar *name);
  95 static void prefs_filtering_create_list_view_columns    (GtkWidget *list_view,
  96                                                          const gchar *name);
  97 static void headers_list_model_row_changed              (GtkTreeModel *model,
  98                                                          GtkTreePath *path,
  99                                                          GtkTreeIter *iter,
 100                                                          GtkTreeView *list_view);
 101 static void headers_list_model_rows_reordered           (GtkTreeModel *model,
 102                                                          GtkTreePath  *path,
 103                                                          GtkTreeIter  *iter,
 104                                                          gpointer      arg,
 105                                                          GtkTreeView  *list_view);
 106
 107 static void drag_begin  (GtkTreeView *list_view,
 108                          GdkDragContext *context,
 109                          gpointer data);
 110
 111 static void drag_end    (GtkTreeView *list_view,
 112                          GdkDragContext *context,
 113                          gpointer data);
 114
 115 static gchar *defaults[] =
 116 {
 117         "From",
 118         "To",
 119         "Cc",
 120         "Reply-To",
 121         "Newsgroups",
 122         "Followup-To",
 123         "Subject",
 124         "Date",
 125         "Sender",
 126         "Organization",
 127         "X-Mailer",
 128         "X-Newsreader",
 129         "User-Agent",
 130         "-Received",
 131         "-Message-ID",
 132         "-In-Reply-To",
 133         "-References",
 134         "-Mime-Version",
 135         "-Content-Type",
 136         "-Content-Transfer-Encoding",
 137         "-X-UIDL",
 138         "-Precedence",
 139         "-Status",
 140         "-Priority",
 141         "-X-Face"
 142 };
 143
 144 static void prefs_display_header_set_default(void)
 145 {
 146         gint i;
 147         DisplayHeaderProp *dp;
 148
 149         for(i = 0; i < sizeof(defaults) / sizeof(defaults[0]); i++) {
 150                 dp = display_header_prop_read_str(defaults[i]);
 151                 prefs_common.disphdr_list =
 152                         g_slist_append(prefs_common.disphdr_list, dp);
 153         }
 154 }
 155
 156 void prefs_display_header_open(void)
 157 {
 158         if (prefs_rc_is_readonly(DISPLAY_HEADER_RC))
 159                 return;
 160
 161         if (!dispheader.window) {
 162                 prefs_display_header_create();
 163         }
 164
 165         manage_window_set_transient(GTK_WINDOW(dispheader.window));
 166         gtk_widget_grab_focus(dispheader.ok_btn);
 167
 168         prefs_display_header_set_dialog();
 169
 170         gtk_widget_show(dispheader.window);
 171 }
 172
 173 static void prefs_display_header_create(void)
 174 {
 175         GtkWidget *window;
 176         GtkWidget *vbox;
 177         GtkWidget *btn_hbox;
 178         GtkWidget *ok_btn;
 179         GtkWidget *cancel_btn;
 180         GtkWidget *confirm_area;
 181
 182         GtkWidget *vbox1;
 183
 184         GtkWidget *hbox1;
 185         GtkWidget *hdr_label;
 186         GtkWidget *hdr_combo;
 187
 188         GtkWidget *btn_vbox;
 189         GtkWidget *reg_btn;
 190         GtkWidget *del_btn;
 191         GtkWidget *up_btn;
 192         GtkWidget *down_btn;
 193
 194         GtkWidget *list_view_hbox;
 195         GtkWidget *list_view_hbox1;
 196         GtkWidget *list_view_hbox2;
 197         GtkWidget *list_view_scrolledwin;
 198         GtkWidget *headers_list_view;
 199         GtkWidget *hidden_headers_list_view;
 200
 201         GtkWidget *checkbtn_other_headers;
 202
 203         debug_print("Creating display header setting window...\n");
 204
 205         window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 206         gtk_container_set_border_width (GTK_CONTAINER (window), 8);
 207         gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);
 208         gtk_window_set_modal (GTK_WINDOW (window), TRUE);
 209         gtk_window_set_resizable(GTK_WINDOW (window), TRUE);
 210
 211         vbox = gtk_vbox_new (FALSE, 6);
 212         gtk_widget_show (vbox);
 213         gtk_container_add (GTK_CONTAINER (window), vbox);
 214
 215         btn_hbox = gtk_hbox_new (FALSE, 8);
 216         gtk_widget_show (btn_hbox);
 217         gtk_box_pack_end (GTK_BOX (vbox), btn_hbox, FALSE, FALSE, 0);
 218
 219         gtkut_stock_button_set_create(&confirm_area, &ok_btn, GTK_STOCK_OK,
 220                                       &cancel_btn, GTK_STOCK_CANCEL,
 221                                       NULL, NULL);
 222         gtk_widget_show (confirm_area);
 223         gtk_box_pack_end (GTK_BOX(btn_hbox), confirm_area, FALSE, FALSE, 0);
 224         gtk_widget_grab_default (ok_btn);
 225
 226         gtk_window_set_title (GTK_WINDOW(window),
 227                               _("Displayed header configuration"));
 228         MANAGE_WINDOW_SIGNALS_CONNECT(window);
 229         g_signal_connect (G_OBJECT(window), "delete_event",
 230                           G_CALLBACK(prefs_display_header_deleted),
 231                           NULL);
 232         g_signal_connect (G_OBJECT(window), "key_press_event",
 233                           G_CALLBACK(prefs_display_header_key_pressed),
 234                           NULL);
 235         g_signal_connect (G_OBJECT(ok_btn), "clicked",
 236                           G_CALLBACK(prefs_display_header_ok),
 237                           NULL);
 238         g_signal_connect (G_OBJECT(cancel_btn), "clicked",
 239                           G_CALLBACK(prefs_display_header_cancel),
 240                           NULL);
 241
 242         vbox1 = gtk_vbox_new (FALSE, VSPACING);
 243         gtk_widget_show (vbox1);
 244         gtk_box_pack_start (GTK_BOX (vbox), vbox1, TRUE, TRUE, 0);
 245         gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);
 246
 247         hbox1 = gtk_hbox_new (FALSE, 8);
 248         gtk_widget_show (hbox1);
 249         gtk_box_pack_start (GTK_BOX (vbox1), hbox1, FALSE, TRUE, 0);
 250
 251         hdr_label = gtk_label_new (_("Header name"));
 252         gtk_widget_show (hdr_label);
 253         gtk_box_pack_start (GTK_BOX (hbox1), hdr_label, FALSE, FALSE, 0);
 254
 255         hdr_combo = gtk_combo_new ();
 256         gtk_widget_show (hdr_combo);
 257         gtk_box_pack_start (GTK_BOX (hbox1), hdr_combo, TRUE, TRUE, 0);
 258         gtk_widget_set_size_request (hdr_combo, 150, -1);
 259         gtkut_combo_set_items (GTK_COMBO (hdr_combo),
 260                                "From", "To", "Cc", "Subject", "Date",
 261                                "Reply-To", "Sender", "User-Agent", "X-Mailer",
 262                                NULL);
 263
 264         list_view_hbox = gtk_hbox_new (FALSE, 10);
 265         gtk_widget_show (list_view_hbox);
 266         gtk_box_pack_start (GTK_BOX (vbox1), list_view_hbox, TRUE, TRUE, 0);
 267
 268         /* display headers list */
 269
 270         list_view_hbox1 = gtk_hbox_new (FALSE, 8);
 271         gtk_widget_show (list_view_hbox1);
 272         gtk_box_pack_start (GTK_BOX (list_view_hbox), list_view_hbox1, TRUE, TRUE, 0);
 273
 274         list_view_scrolledwin = gtk_scrolled_window_new (NULL, NULL);
 275         gtk_widget_set_size_request (list_view_scrolledwin, 200, 210);
 276         gtk_widget_show (list_view_scrolledwin);
 277         gtk_box_pack_start (GTK_BOX (list_view_hbox1), list_view_scrolledwin,
 278                             TRUE, TRUE, 0);
 279         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (list_view_scrolledwin),
 280                                         GTK_POLICY_AUTOMATIC,
 281                                         GTK_POLICY_AUTOMATIC);
 282
 283         headers_list_view = prefs_display_header_list_view_create
 284                                 (_("Displayed Headers"));
 285         gtk_widget_show (headers_list_view);
 286         gtk_container_add(GTK_CONTAINER(list_view_scrolledwin), headers_list_view);
 287         gtk_tree_view_set_reorderable(GTK_TREE_VIEW(headers_list_view), TRUE);
 288
 289         g_signal_connect(G_OBJECT(headers_list_view), "drag_begin",
 290                          G_CALLBACK(drag_begin),
 291                          headers_list_view);
 292
 293         g_signal_connect(G_OBJECT(headers_list_view), "drag_end",
 294                          G_CALLBACK(drag_end),
 295                          headers_list_view);
 296
 297         /* connect rows change for this list view's model */
 298         g_signal_connect(G_OBJECT(gtk_tree_view_get_model(GTK_TREE_VIEW(headers_list_view))),
 299                          "rows-reordered",
 300                          G_CALLBACK(headers_list_model_rows_reordered),
 301                          headers_list_view);
 302
 303         btn_vbox = gtk_vbox_new (FALSE, 8);
 304         gtk_widget_show (btn_vbox);
 305         gtk_box_pack_start (GTK_BOX (list_view_hbox1), btn_vbox, FALSE, FALSE, 0);
 306
 307         reg_btn = gtk_button_new_from_stock (GTK_STOCK_ADD);
 308         gtk_widget_show (reg_btn);
 309         gtk_box_pack_start (GTK_BOX (btn_vbox), reg_btn, FALSE, TRUE, 0);
 310         g_signal_connect (G_OBJECT (reg_btn), "clicked",
 311                           G_CALLBACK (prefs_display_header_register_cb),
 312                             GINT_TO_POINTER(FALSE));
 313         del_btn = gtk_button_new_from_stock (GTK_STOCK_REMOVE);
 314         gtk_widget_show (del_btn);
 315         gtk_box_pack_start (GTK_BOX (btn_vbox), del_btn, FALSE, TRUE, 0);
 316         g_signal_connect (G_OBJECT (del_btn), "clicked",
 317                           G_CALLBACK (prefs_display_header_delete_cb),
 318                           headers_list_view);
 319
 320         up_btn = gtk_button_new_from_stock (GTK_STOCK_GO_UP);
 321         gtk_widget_show (up_btn);
 322         gtk_box_pack_start (GTK_BOX (btn_vbox), up_btn, FALSE, FALSE, 0);
 323         g_signal_connect (G_OBJECT (up_btn), "clicked",
 324                           G_CALLBACK (prefs_display_header_up), NULL);
 325
 326         down_btn = gtk_button_new_from_stock (GTK_STOCK_GO_DOWN);
 327         gtk_widget_show (down_btn);
 328         gtk_box_pack_start (GTK_BOX (btn_vbox), down_btn, FALSE, FALSE, 0);
 329         g_signal_connect (G_OBJECT (down_btn), "clicked",
 330                           G_CALLBACK (prefs_display_header_down), NULL);
 331
 332         /* hidden headers list */
 333
 334         list_view_hbox2 = gtk_hbox_new (FALSE, 8);
 335         gtk_widget_show (list_view_hbox2);
 336         gtk_box_pack_start (GTK_BOX (list_view_hbox), list_view_hbox2, TRUE, TRUE, 0);
 337
 338         list_view_scrolledwin = gtk_scrolled_window_new (NULL, NULL);
 339         gtk_widget_set_size_request (list_view_scrolledwin, 200, 210);
 340         gtk_widget_show (list_view_scrolledwin);
 341         gtk_box_pack_start (GTK_BOX (list_view_hbox2), list_view_scrolledwin,
 342                             TRUE, TRUE, 0);
 343         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (list_view_scrolledwin),
 344                                         GTK_POLICY_AUTOMATIC,
 345                                         GTK_POLICY_AUTOMATIC);
 346
 347         hidden_headers_list_view = prefs_display_header_list_view_create
 348                                         (_("Hidden headers"));
 349         gtk_widget_show (hidden_headers_list_view);
 350         gtk_container_add (GTK_CONTAINER (list_view_scrolledwin),
 351                            hidden_headers_list_view);
 352
 353         btn_vbox = gtk_vbox_new (FALSE, 8);
 354         gtk_widget_show (btn_vbox);
 355         gtk_box_pack_start (GTK_BOX (list_view_hbox2), btn_vbox, FALSE, FALSE, 0);
 356
 357         reg_btn = gtk_button_new_from_stock (GTK_STOCK_ADD);
 358         gtk_widget_show (reg_btn);
 359         gtk_box_pack_start (GTK_BOX (btn_vbox), reg_btn, FALSE, TRUE, 0);
 360         g_signal_connect (G_OBJECT (reg_btn), "clicked",
 361                             G_CALLBACK
 362                             (prefs_display_header_register_cb),
 363                             GINT_TO_POINTER(TRUE));
 364         del_btn = gtk_button_new_from_stock (GTK_STOCK_DELETE);
 365         gtk_widget_show (del_btn);
 366         gtk_box_pack_start (GTK_BOX (btn_vbox), del_btn, FALSE, TRUE, 0);
 367         g_signal_connect (G_OBJECT       (del_btn), "clicked",
 368                             G_CALLBACK (prefs_display_header_delete_cb),
 369                             hidden_headers_list_view);
 370
 371         PACK_CHECK_BUTTON (btn_hbox, checkbtn_other_headers,
 372                            _("Show all unspecified headers"));
 373         SET_TOGGLE_SENSITIVITY (checkbtn_other_headers, list_view_hbox2);
 374
 375         gtk_widget_show_all(window);
 376
 377         dispheader.window        = window;
 378         dispheader.ok_btn        = ok_btn;
 379         dispheader.cancel_btn    = cancel_btn;
 380
 381         dispheader.hdr_combo     = hdr_combo;
 382         dispheader.hdr_entry     = GTK_COMBO (hdr_combo)->entry;
 383
 384         dispheader.headers_list_view        = headers_list_view;
 385         dispheader.hidden_headers_list_view = hidden_headers_list_view;
 386
 387         dispheader.other_headers = checkbtn_other_headers;
 388 }
 389
 390 void prefs_display_header_read_config(void)
 391 {
 392         gchar *rcpath;
 393         FILE *fp;
 394         gchar buf[PREFSBUFSIZE];
 395         DisplayHeaderProp *dp;
 396
 397         debug_print("Reading configuration for displaying headers...\n");
 398
 399         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 400                              DISPLAY_HEADER_RC, NULL);
 401         if ((fp = g_fopen(rcpath, "rb")) == NULL) {
 402                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
 403                 g_free(rcpath);
 404                 prefs_common.disphdr_list = NULL;
 405                 prefs_display_header_set_default();
 406                 return;
 407         }
 408         g_free(rcpath);
 409
 410         /* remove all previous headers list */
 411         while (prefs_common.disphdr_list != NULL) {
 412                 dp = (DisplayHeaderProp *)prefs_common.disphdr_list->data;
 413                 display_header_prop_free(dp);
 414                 prefs_common.disphdr_list =
 415                         g_slist_remove(prefs_common.disphdr_list, dp);
 416         }
 417
 418         while (fgets(buf, sizeof(buf), fp) != NULL) {
 419                 g_strdelimit(buf, "\r\n", '\0');
 420                 dp = display_header_prop_read_str(buf);
 421                 if (dp)
 422                         prefs_common.disphdr_list =
 423                                 g_slist_append(prefs_common.disphdr_list, dp);
 424         }
 425
 426         fclose(fp);
 427 }
 428
 429 void prefs_display_header_write_config(void)
 430 {
 431         gchar *rcpath;
 432         PrefFile *pfile;
 433         GSList *cur;
 434
 435         debug_print("Writing configuration for displaying headers...\n");
 436
 437         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 438                              DISPLAY_HEADER_RC, NULL);
 439
 440         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 441                 g_warning("failed to write configuration to file\n");
 442                 g_free(rcpath);
 443                 return;
 444         }
 445
 446         for (cur = prefs_common.disphdr_list; cur != NULL;
 447              cur = cur->next) {
 448                 DisplayHeaderProp *dp = (DisplayHeaderProp *)cur->data;
 449                 gchar *dpstr;
 450
 451                 dpstr = display_header_prop_get_str(dp);
 452                 if (fputs(dpstr, pfile->fp) == EOF ||
 453                     fputc('\n', pfile->fp) == EOF) {
 454                         FILE_OP_ERROR(rcpath, "fputs || fputc");
 455                         prefs_file_close_revert(pfile);
 456                         g_free(rcpath);
 457                         g_free(dpstr);
 458                         return;
 459                 }
 460                 g_free(dpstr);
 461         }
 462
 463         g_free(rcpath);
 464
 465         if (prefs_file_close(pfile) < 0) {
 466                 g_warning("failed to write configuration to file\n");
 467                 return;
 468         }
 469 }
 470
 471 static void prefs_display_header_set_dialog(void)
 472 {
 473         GtkTreeView *list_view = GTK_TREE_VIEW(dispheader.headers_list_view);
 474         GtkTreeView *hidden_list_view = GTK_TREE_VIEW(dispheader.hidden_headers_list_view);
 475         GSList *cur;
 476         GtkTreeModel *model_list, *model_hidden;
 477
 478         model_list = gtk_tree_view_get_model(list_view);
 479         model_hidden = gtk_tree_view_get_model(hidden_list_view);
 480
 481         gtk_list_store_clear(GTK_LIST_STORE(model_list));
 482         gtk_list_store_clear(GTK_LIST_STORE(model_hidden));
 483
 484         for (cur = prefs_common.disphdr_list; cur != NULL;
 485              cur = cur->next) {
 486                 DisplayHeaderProp *dp = (DisplayHeaderProp *)cur->data;
 487
 488                 if (dp->hidden)
 489                         prefs_display_header_insert_header(GTK_LIST_STORE
 490                                                 (model_hidden), dp->name, dp);
 491                 else
 492                         prefs_display_header_insert_header(GTK_LIST_STORE
 493                                                 (model_list), dp->name, dp);
 494         }
 495
 496         gtk_toggle_button_set_active
 497                 (GTK_TOGGLE_BUTTON(dispheader.other_headers),
 498                  prefs_common.show_other_header);
 499 }
 500
 501 static void prefs_display_header_set_list(void)
 502 {
 503         gint row = 0;
 504         DisplayHeaderProp *dp;
 505         GtkTreeModel *model;
 506         GtkTreeIter iter;
 507
 508         g_slist_free(prefs_common.disphdr_list);
 509         prefs_common.disphdr_list = NULL;
 510
 511         model = gtk_tree_view_get_model(GTK_TREE_VIEW(dispheader.headers_list_view));
 512         while (gtk_tree_model_iter_nth_child(model, &iter, NULL, row)) {
 513                 gtk_tree_model_get(model, &iter, PREFS_HDR_DATA, &dp, -1);
 514                 if (dp)
 515                         prefs_common.disphdr_list =
 516                                 g_slist_append(prefs_common.disphdr_list, dp);
 517                 row++;
 518         }
 519
 520         model = gtk_tree_view_get_model
 521                         (GTK_TREE_VIEW(dispheader.hidden_headers_list_view));
 522         row = 0;
 523         while (gtk_tree_model_iter_nth_child(model, &iter, NULL, row)) {
 524                 gtk_tree_model_get(model, &iter, PREFS_HDR_DATA, &dp, -1);
 525                 if (dp)
 526                         prefs_common.disphdr_list =
 527                                 g_slist_append(prefs_common.disphdr_list, dp);
 528                 row++;
 529         }
 530 }
 531
 532 static gint prefs_display_header_find_header(GtkTreeView *list_view,
 533                                              const gchar *header)
 534 {
 535         gint row = 0;
 536         DisplayHeaderProp *dp;
 537         GtkTreeModel *model;
 538         GtkTreeIter iter;
 539
 540         model = gtk_tree_view_get_model(list_view);
 541         while (gtk_tree_model_iter_nth_child(model, &iter, NULL, row)) {
 542                 gtk_tree_model_get(model, &iter, PREFS_HDR_DATA, &dp, -1);
 543                 if (dp && g_ascii_strcasecmp(dp->name, header) == 0)
 544                         return row;
 545                 row++;
 546         }
 547
 548         return -1;
 549 }
 550
 551 static void prefs_display_header_list_view_set_row(gboolean hidden)
 552 {
 553         GtkTreeView *list_view;
 554         DisplayHeaderProp *dp;
 555         const gchar *entry_text;
 556         GtkTreeModel *model;
 557
 558         entry_text = gtk_entry_get_text(GTK_ENTRY(dispheader.hdr_entry));
 559         if (entry_text[0] == '\0') {
 560                 alertpanel_error(_("Header name is not set."));
 561                 return;
 562         }
 563
 564         if (hidden)
 565                 list_view = GTK_TREE_VIEW(dispheader.hidden_headers_list_view);
 566         else
 567                 list_view = GTK_TREE_VIEW(dispheader.headers_list_view);
 568
 569         if (prefs_display_header_find_header(list_view, entry_text) != -1) {
 570                 alertpanel_error(_("This header is already in the list."));
 571                 return;
 572         }
 573
 574         dp = g_new0(DisplayHeaderProp, 1);
 575
 576         dp->name = g_strdup(entry_text);
 577         dp->hidden = hidden;
 578
 579         model = gtk_tree_view_get_model(list_view);
 580         prefs_display_header_insert_header(GTK_LIST_STORE(model),
 581                                            dp->name, dp);
 582
 583         prefs_display_header_set_list();
 584 }
 585
 586 static void prefs_display_header_register_cb(GtkButton *btn,
 587                                              gpointer hidden_data)
 588 {
 589         prefs_display_header_list_view_set_row(GPOINTER_TO_INT(hidden_data));
 590 }
 591
 592 static void prefs_display_header_delete_cb(GtkButton *btn, gpointer list_view_data)
 593 {
 594         GtkTreeView *list_view = GTK_TREE_VIEW(list_view_data);
 595         DisplayHeaderProp *dp;
 596         GtkListStore *store = GTK_LIST_STORE(gtk_tree_view_get_model(list_view));
 597         GtkTreeSelection *selection = gtk_tree_view_get_selection(list_view);
 598         GtkTreeIter iter;
 599
 600         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 601                 return;
 602
 603         gtk_tree_model_get(GTK_TREE_MODEL(store), &iter, PREFS_HDR_DATA, &dp, -1);
 604         if (!dp)
 605                 return;
 606
 607         prefs_common.disphdr_list =
 608                 g_slist_remove(prefs_common.disphdr_list, dp);
 609         display_header_prop_free(dp);
 610         gtk_list_store_remove(store, &iter);
 611 }
 612
 613 static void prefs_display_header_up(void)
 614 {
 615         GtkTreePath *prev, *sel, *try;
 616         GtkTreeIter isel;
 617         GtkListStore *store = NULL;
 618         GtkTreeModel *model = NULL;
 619         GtkTreeIter iprev;
 620
 621         if (!gtk_tree_selection_get_selected
 622                 (gtk_tree_view_get_selection
 623                         (GTK_TREE_VIEW(dispheader.headers_list_view)),
 624                  &model,
 625                  &isel))
 626                 return;
 627         store = (GtkListStore *)model;
 628         sel = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &isel);
 629         if (!sel)
 630                 return;
 631
 632         /* no move if we're at row 0... */
 633         try = gtk_tree_path_copy(sel);
 634         if (!gtk_tree_path_prev(try)) {
 635                 gtk_tree_path_free(try);
 636                 gtk_tree_path_free(sel);
 637                 return;
 638         }
 639
 640         prev = try;
 641         gtk_tree_model_get_iter(GTK_TREE_MODEL(store),
 642                                 &iprev, prev);
 643         gtk_list_store_swap(store, &iprev, &isel);
 644
 645         gtk_tree_path_free(sel);
 646         gtk_tree_path_free(prev);
 647 }
 648
 649 static void prefs_display_header_down(void)
 650 {
 651         GtkListStore *store = NULL;
 652         GtkTreeModel *model = NULL;
 653         GtkTreeIter next, sel;
 654         GtkTreePath *try;
 655
 656         if (!gtk_tree_selection_get_selected
 657                 (gtk_tree_view_get_selection
 658                         (GTK_TREE_VIEW(dispheader.headers_list_view)),
 659                  &model,
 660                  &sel))
 661                 return;
 662         store = (GtkListStore *)model;
 663         try = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &sel);
 664         if (!try)
 665                 return;
 666
 667         next = sel;
 668         if (gtk_tree_model_iter_next(GTK_TREE_MODEL(store), &next))
 669                 gtk_list_store_swap(store, &next, &sel);
 670
 671         gtk_tree_path_free(try);
 672 }
 673
 674 static gboolean prefs_display_header_key_pressed(GtkWidget *widget,
 675                                              GdkEventKey *event,
 676                                              gpointer data)
 677 {
 678         if (event && event->keyval == GDK_Escape)
 679                 prefs_display_header_cancel();
 680         return FALSE;
 681 }
 682
 683 static void prefs_display_header_ok(void)
 684 {
 685         prefs_common.show_other_header =
 686                 gtk_toggle_button_get_active
 687                         (GTK_TOGGLE_BUTTON(dispheader.other_headers));
 688         prefs_display_header_write_config();
 689         gtk_widget_hide(dispheader.window);
 690 }
 691
 692 static void prefs_display_header_cancel(void)
 693 {
 694         prefs_display_header_read_config();
 695         gtk_widget_hide(dispheader.window);
 696 }
 697
 698 static gint prefs_display_header_deleted(GtkWidget *widget, GdkEventAny *event,
 699                                          gpointer data)
 700 {
 701         prefs_display_header_cancel();
 702         return TRUE;
 703 }
 704
 705 static GtkListStore *prefs_display_header_create_store(void)
 706 {
 707         return gtk_list_store_new(N_PREFS_HDR_COLUMNS,
 708                                   G_TYPE_STRING,
 709                                   G_TYPE_POINTER,
 710                                   -1);
 711 }
 712
 713 static void prefs_display_header_insert_header(GtkListStore *store,
 714                                                gchar *name,
 715                                                DisplayHeaderProp *dp)
 716 {
 717         GtkTreeIter iter;
 718
 719         /* add new */
 720         gtk_list_store_append(store, &iter);
 721         gtk_list_store_set(store, &iter,
 722                            PREFS_HDR_HEADER, name,
 723                            PREFS_HDR_DATA, dp,
 724                            -1);
 725 }
 726
 727 static GtkWidget *prefs_display_header_list_view_create(const gchar *name)
 728 {
 729         GtkWidget *list_view;
 730         GtkTreeSelection *selector;
 731         GtkTreeModel *model;
 732
 733         model = GTK_TREE_MODEL(prefs_display_header_create_store());
 734         list_view = gtk_tree_view_new_with_model(model);
 735         g_object_unref(G_OBJECT(model));
 736
 737         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(list_view),
 738                                      prefs_common.enable_rules_hint);
 739
 740         selector = gtk_tree_view_get_selection(GTK_TREE_VIEW(list_view));
 741         gtk_tree_selection_set_mode(selector, GTK_SELECTION_BROWSE);
 742
 743         prefs_filtering_create_list_view_columns(GTK_WIDGET(list_view), name);
 744
 745         return list_view;
 746 }
 747
 748 static void prefs_filtering_create_list_view_columns(GtkWidget *list_view,
 749                                                      const gchar *name)
 750 {
 751         GtkTreeViewColumn *column;
 752         GtkCellRenderer *renderer;
 753
 754         renderer = gtk_cell_renderer_text_new();
 755         column = gtk_tree_view_column_new_with_attributes
 756                 (name, renderer, "text", PREFS_HDR_HEADER, NULL);
 757         gtk_tree_view_append_column(GTK_TREE_VIEW(list_view), column);
 758 }
 759
 760 /*!
 761  *\brief        Called as a result of a drag & drop
 762  */
 763 static void headers_list_model_row_changed(GtkTreeModel *model,
 764                                            GtkTreePath *path,
 765                                            GtkTreeIter *iter,
 766                                            GtkTreeView *list_view)
 767 {
 768         prefs_display_header_set_list();
 769 }
 770
 771 /*!
 772  *\brief        Called as a result of a gtk_list_store_swap()
 773  */
 774 static void headers_list_model_rows_reordered(GtkTreeModel *model,
 775                                               GtkTreePath  *path,
 776                                               GtkTreeIter  *iter,
 777                                               gpointer      arg,
 778                                               GtkTreeView  *list_view)
 779 {
 780         prefs_display_header_set_list();
 781 }
 782
 783 static void drag_begin(GtkTreeView *list_view,
 784                       GdkDragContext *context,
 785                       gpointer data)
 786 {
 787         /* XXX unfortunately a completed drag & drop does not emit
 788          * a "rows_reordered" signal, but a "row_changed" signal.
 789          * So during drag and drop, listen to "row_changed", and
 790          * update the account list accordingly */
 791
 792         GtkTreeModel *model = gtk_tree_view_get_model(list_view);
 793         g_signal_connect(G_OBJECT(model), "row_changed",
 794                          G_CALLBACK(headers_list_model_row_changed),
 795                          list_view);
 796 }
 797
 798 static void drag_end(GtkTreeView *list_view,
 799                     GdkDragContext *context,
 800                     gpointer data)
 801 {
 802         GtkTreeModel *model = gtk_tree_view_get_model(list_view);
 803         g_signal_handlers_disconnect_by_func(G_OBJECT(model),
 804                                              G_CALLBACK(headers_list_model_row_changed),
 805                                              list_view);
 806 }
 807