src/prefs_display_header.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2004 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 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gtk/gtk.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <errno.h>
  33
  34 #include "intl.h"
  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_button_set_create_stock(&confirm_area, &ok_btn, GTK_STOCK_OK,
 220                                       &cancel_btn, GTK_STOCK_CANCEL, NULL, NULL);
 221         gtk_widget_show (confirm_area);
 222         gtk_box_pack_end (GTK_BOX(btn_hbox), confirm_area, FALSE, FALSE, 0);
 223         gtk_widget_grab_default (ok_btn);
 224
 225         gtk_window_set_title (GTK_WINDOW(window),
 226                               _("Displayed header configuration"));
 227         MANAGE_WINDOW_SIGNALS_CONNECT(window);
 228         g_signal_connect (G_OBJECT(window), "delete_event",
 229                           G_CALLBACK(prefs_display_header_deleted),
 230                           NULL);
 231         g_signal_connect (G_OBJECT(window), "key_press_event",
 232                           G_CALLBACK(prefs_display_header_key_pressed),
 233                           NULL);
 234         g_signal_connect (G_OBJECT(ok_btn), "clicked",
 235                           G_CALLBACK(prefs_display_header_ok),
 236                           NULL);
 237         g_signal_connect (G_OBJECT(cancel_btn), "clicked",
 238                           G_CALLBACK(prefs_display_header_cancel),
 239                           NULL);
 240
 241         vbox1 = gtk_vbox_new (FALSE, VSPACING);
 242         gtk_widget_show (vbox1);
 243         gtk_box_pack_start (GTK_BOX (vbox), vbox1, TRUE, TRUE, 0);
 244         gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);
 245
 246         hbox1 = gtk_hbox_new (FALSE, 8);
 247         gtk_widget_show (hbox1);
 248         gtk_box_pack_start (GTK_BOX (vbox1), hbox1, FALSE, TRUE, 0);
 249
 250         hdr_label = gtk_label_new (_("Header name"));
 251         gtk_widget_show (hdr_label);
 252         gtk_box_pack_start (GTK_BOX (hbox1), hdr_label, FALSE, FALSE, 0);
 253
 254         hdr_combo = gtk_combo_new ();
 255         gtk_widget_show (hdr_combo);
 256         gtk_box_pack_start (GTK_BOX (hbox1), hdr_combo, TRUE, TRUE, 0);
 257         gtk_widget_set_size_request (hdr_combo, 150, -1);
 258         gtkut_combo_set_items (GTK_COMBO (hdr_combo),
 259                                "From", "To", "Cc", "Subject", "Date",
 260                                "Reply-To", "Sender", "User-Agent", "X-Mailer",
 261                                NULL);
 262
 263         list_view_hbox = gtk_hbox_new (FALSE, 10);
 264         gtk_widget_show (list_view_hbox);
 265         gtk_box_pack_start (GTK_BOX (vbox1), list_view_hbox, TRUE, TRUE, 0);
 266
 267         /* display headers list */
 268
 269         list_view_hbox1 = gtk_hbox_new (FALSE, 8);
 270         gtk_widget_show (list_view_hbox1);
 271         gtk_box_pack_start (GTK_BOX (list_view_hbox), list_view_hbox1, TRUE, TRUE, 0);
 272
 273         list_view_scrolledwin = gtk_scrolled_window_new (NULL, NULL);
 274         gtk_widget_set_size_request (list_view_scrolledwin, 200, 210);
 275         gtk_widget_show (list_view_scrolledwin);
 276         gtk_box_pack_start (GTK_BOX (list_view_hbox1), list_view_scrolledwin,
 277                             TRUE, TRUE, 0);
 278         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (list_view_scrolledwin),
 279                                         GTK_POLICY_AUTOMATIC,
 280                                         GTK_POLICY_AUTOMATIC);
 281
 282         headers_list_view = prefs_display_header_list_view_create
 283                                 (_("Displayed Headers"));
 284         gtk_widget_show (headers_list_view);
 285         gtk_container_add(GTK_CONTAINER(list_view_scrolledwin), headers_list_view);
 286         gtk_tree_view_set_reorderable(GTK_TREE_VIEW(headers_list_view), TRUE);
 287
 288         g_signal_connect(G_OBJECT(headers_list_view), "drag_begin",
 289                          G_CALLBACK(drag_begin),
 290                          headers_list_view);
 291
 292         g_signal_connect(G_OBJECT(headers_list_view), "drag_end",
 293                          G_CALLBACK(drag_end),
 294                          headers_list_view);
 295
 296         /* connect rows change for this list view's model */
 297         g_signal_connect(G_OBJECT(gtk_tree_view_get_model(GTK_TREE_VIEW(headers_list_view))),
 298                          "rows-reordered",
 299                          G_CALLBACK(headers_list_model_rows_reordered),
 300                          headers_list_view);
 301
 302         btn_vbox = gtk_vbox_new (FALSE, 8);
 303         gtk_widget_show (btn_vbox);
 304         gtk_box_pack_start (GTK_BOX (list_view_hbox1), btn_vbox, FALSE, FALSE, 0);
 305
 306         reg_btn = gtk_button_new_from_stock (GTK_STOCK_ADD);
 307         gtk_widget_show (reg_btn);
 308         gtk_box_pack_start (GTK_BOX (btn_vbox), reg_btn, FALSE, TRUE, 0);
 309         g_signal_connect (G_OBJECT (reg_btn), "clicked",
 310                           G_CALLBACK (prefs_display_header_register_cb),
 311                             GINT_TO_POINTER(FALSE));
 312         del_btn = gtk_button_new_from_stock (GTK_STOCK_REMOVE);
 313         gtk_widget_show (del_btn);
 314         gtk_box_pack_start (GTK_BOX (btn_vbox), del_btn, FALSE, TRUE, 0);
 315         g_signal_connect (G_OBJECT (del_btn), "clicked",
 316                           G_CALLBACK (prefs_display_header_delete_cb),
 317                           headers_list_view);
 318
 319         up_btn = gtk_button_new_from_stock (GTK_STOCK_GO_UP);
 320         gtk_widget_show (up_btn);
 321         gtk_box_pack_start (GTK_BOX (btn_vbox), up_btn, FALSE, FALSE, 0);
 322         g_signal_connect (G_OBJECT (up_btn), "clicked",
 323                           G_CALLBACK (prefs_display_header_up), NULL);
 324
 325         down_btn = gtk_button_new_from_stock (GTK_STOCK_GO_DOWN);
 326         gtk_widget_show (down_btn);
 327         gtk_box_pack_start (GTK_BOX (btn_vbox), down_btn, FALSE, FALSE, 0);
 328         g_signal_connect (G_OBJECT (down_btn), "clicked",
 329                           G_CALLBACK (prefs_display_header_down), NULL);
 330
 331         /* hidden headers list */
 332
 333         list_view_hbox2 = gtk_hbox_new (FALSE, 8);
 334         gtk_widget_show (list_view_hbox2);
 335         gtk_box_pack_start (GTK_BOX (list_view_hbox), list_view_hbox2, TRUE, TRUE, 0);
 336
 337         list_view_scrolledwin = gtk_scrolled_window_new (NULL, NULL);
 338         gtk_widget_set_size_request (list_view_scrolledwin, 200, 210);
 339         gtk_widget_show (list_view_scrolledwin);
 340         gtk_box_pack_start (GTK_BOX (list_view_hbox2), list_view_scrolledwin,
 341                             TRUE, TRUE, 0);
 342         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (list_view_scrolledwin),
 343                                         GTK_POLICY_AUTOMATIC,
 344                                         GTK_POLICY_AUTOMATIC);
 345
 346         hidden_headers_list_view = prefs_display_header_list_view_create
 347                                         (_("Hidden headers"));
 348         gtk_widget_show (hidden_headers_list_view);
 349         gtk_container_add (GTK_CONTAINER (list_view_scrolledwin),
 350                            hidden_headers_list_view);
 351
 352         btn_vbox = gtk_vbox_new (FALSE, 8);
 353         gtk_widget_show (btn_vbox);
 354         gtk_box_pack_start (GTK_BOX (list_view_hbox2), btn_vbox, FALSE, FALSE, 0);
 355
 356         reg_btn = gtk_button_new_from_stock (GTK_STOCK_ADD);
 357         gtk_widget_show (reg_btn);
 358         gtk_box_pack_start (GTK_BOX (btn_vbox), reg_btn, FALSE, TRUE, 0);
 359         g_signal_connect (G_OBJECT (reg_btn), "clicked",
 360                             G_CALLBACK
 361                             (prefs_display_header_register_cb),
 362                             GINT_TO_POINTER(TRUE));
 363         del_btn = gtk_button_new_from_stock (GTK_STOCK_REMOVE);
 364         gtk_widget_show (del_btn);
 365         gtk_box_pack_start (GTK_BOX (btn_vbox), del_btn, FALSE, TRUE, 0);
 366         g_signal_connect (G_OBJECT       (del_btn), "clicked",
 367                             G_CALLBACK (prefs_display_header_delete_cb),
 368                             hidden_headers_list_view);
 369
 370         PACK_CHECK_BUTTON (btn_hbox, checkbtn_other_headers,
 371                            _("Show all unspecified headers"));
 372         SET_TOGGLE_SENSITIVITY (checkbtn_other_headers, list_view_hbox2);
 373
 374         gtk_widget_show_all(window);
 375
 376         dispheader.window        = window;
 377         dispheader.ok_btn        = ok_btn;
 378         dispheader.cancel_btn    = cancel_btn;
 379
 380         dispheader.hdr_combo     = hdr_combo;
 381         dispheader.hdr_entry     = GTK_COMBO (hdr_combo)->entry;
 382
 383         dispheader.headers_list_view        = headers_list_view;
 384         dispheader.hidden_headers_list_view = hidden_headers_list_view;
 385
 386         dispheader.other_headers = checkbtn_other_headers;
 387 }
 388
 389 void prefs_display_header_read_config(void)
 390 {
 391         gchar *rcpath;
 392         FILE *fp;
 393         gchar buf[PREFSBUFSIZE];
 394         DisplayHeaderProp *dp;
 395
 396         debug_print("Reading configuration for displaying headers...\n");
 397
 398         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 399                              DISPLAY_HEADER_RC, NULL);
 400         if ((fp = fopen(rcpath, "rb")) == NULL) {
 401                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
 402                 g_free(rcpath);
 403                 prefs_common.disphdr_list = NULL;
 404                 prefs_display_header_set_default();
 405                 return;
 406         }
 407         g_free(rcpath);
 408
 409         /* remove all previous headers list */
 410         while (prefs_common.disphdr_list != NULL) {
 411                 dp = (DisplayHeaderProp *)prefs_common.disphdr_list->data;
 412                 display_header_prop_free(dp);
 413                 prefs_common.disphdr_list =
 414                         g_slist_remove(prefs_common.disphdr_list, dp);
 415         }
 416
 417         while (fgets(buf, sizeof(buf), fp) != NULL) {
 418                 g_strdelimit(buf, "\r\n", '\0');
 419                 dp = display_header_prop_read_str(buf);
 420                 if (dp)
 421                         prefs_common.disphdr_list =
 422                                 g_slist_append(prefs_common.disphdr_list, dp);
 423         }
 424
 425         fclose(fp);
 426 }
 427
 428 void prefs_display_header_write_config(void)
 429 {
 430         gchar *rcpath;
 431         PrefFile *pfile;
 432         GSList *cur;
 433
 434         debug_print("Writing configuration for displaying headers...\n");
 435
 436         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 437                              DISPLAY_HEADER_RC, NULL);
 438
 439         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 440                 g_warning("failed to write configuration to file\n");
 441                 g_free(rcpath);
 442                 return;
 443         }
 444
 445         for (cur = prefs_common.disphdr_list; cur != NULL;
 446              cur = cur->next) {
 447                 DisplayHeaderProp *dp = (DisplayHeaderProp *)cur->data;
 448                 gchar *dpstr;
 449
 450                 dpstr = display_header_prop_get_str(dp);
 451                 if (fputs(dpstr, pfile->fp) == EOF ||
 452                     fputc('\n', pfile->fp) == EOF) {
 453                         FILE_OP_ERROR(rcpath, "fputs || fputc");
 454                         prefs_file_close_revert(pfile);
 455                         g_free(rcpath);
 456                         g_free(dpstr);
 457                         return;
 458                 }
 459                 g_free(dpstr);
 460         }
 461
 462         g_free(rcpath);
 463
 464         if (prefs_file_close(pfile) < 0) {
 465                 g_warning("failed to write configuration to file\n");
 466                 return;
 467         }
 468 }
 469
 470 static void prefs_display_header_set_dialog(void)
 471 {
 472         GtkTreeView *list_view = GTK_TREE_VIEW(dispheader.headers_list_view);
 473         GtkTreeView *hidden_list_view = GTK_TREE_VIEW(dispheader.hidden_headers_list_view);
 474         GSList *cur;
 475         GtkTreeModel *model_list, *model_hidden;
 476
 477         model_list = gtk_tree_view_get_model(list_view);
 478         model_hidden = gtk_tree_view_get_model(hidden_list_view);
 479
 480         gtk_list_store_clear(GTK_LIST_STORE(model_list));
 481         gtk_list_store_clear(GTK_LIST_STORE(model_hidden));
 482
 483         for (cur = prefs_common.disphdr_list; cur != NULL;
 484              cur = cur->next) {
 485                 DisplayHeaderProp *dp = (DisplayHeaderProp *)cur->data;
 486
 487                 if (dp->hidden)
 488                         prefs_display_header_insert_header(GTK_LIST_STORE
 489                                                 (model_hidden), dp->name, dp);
 490                 else
 491                         prefs_display_header_insert_header(GTK_LIST_STORE
 492                                                 (model_list), dp->name, dp);
 493         }
 494
 495         gtk_toggle_button_set_active
 496                 (GTK_TOGGLE_BUTTON(dispheader.other_headers),
 497                  prefs_common.show_other_header);
 498 }
 499
 500 static void prefs_display_header_set_list(void)
 501 {
 502         gint row = 0;
 503         DisplayHeaderProp *dp;
 504         GtkTreeModel *model;
 505         GtkTreeIter iter;
 506
 507         g_slist_free(prefs_common.disphdr_list);
 508         prefs_common.disphdr_list = NULL;
 509
 510         model = gtk_tree_view_get_model(GTK_TREE_VIEW(dispheader.headers_list_view));
 511         while (gtk_tree_model_iter_nth_child(model, &iter, NULL, row)) {
 512                 gtk_tree_model_get(model, &iter, PREFS_HDR_DATA, &dp, -1);
 513                 if (dp)
 514                         prefs_common.disphdr_list =
 515                                 g_slist_append(prefs_common.disphdr_list, dp);
 516                 row++;
 517         }
 518
 519         model = gtk_tree_view_get_model
 520                         (GTK_TREE_VIEW(dispheader.hidden_headers_list_view));
 521         row = 0;
 522         while (gtk_tree_model_iter_nth_child(model, &iter, NULL, row)) {
 523                 gtk_tree_model_get(model, &iter, PREFS_HDR_DATA, &dp, -1);
 524                 if (dp)
 525                         prefs_common.disphdr_list =
 526                                 g_slist_append(prefs_common.disphdr_list, dp);
 527                 row++;
 528         }
 529 }
 530
 531 static gint prefs_display_header_find_header(GtkTreeView *list_view,
 532                                              const gchar *header)
 533 {
 534         gint row = 0;
 535         DisplayHeaderProp *dp;
 536         GtkTreeModel *model;
 537         GtkTreeIter iter;
 538
 539         model = gtk_tree_view_get_model(list_view);
 540         while (gtk_tree_model_iter_nth_child(model, &iter, NULL, row)) {
 541                 gtk_tree_model_get(model, &iter, PREFS_HDR_DATA, &dp, -1);
 542                 if (dp && g_ascii_strcasecmp(dp->name, header) == 0)
 543                         return row;
 544                 row++;
 545         }
 546
 547         return -1;
 548 }
 549
 550 static void prefs_display_header_list_view_set_row(gboolean hidden)
 551 {
 552         GtkTreeView *list_view;
 553         DisplayHeaderProp *dp;
 554         const gchar *entry_text;
 555         GtkTreeModel *model;
 556
 557         entry_text = gtk_entry_get_text(GTK_ENTRY(dispheader.hdr_entry));
 558         if (entry_text[0] == '\0') {
 559                 alertpanel_error(_("Header name is not set."));
 560                 return;
 561         }
 562
 563         if (hidden)
 564                 list_view = GTK_TREE_VIEW(dispheader.hidden_headers_list_view);
 565         else
 566                 list_view = GTK_TREE_VIEW(dispheader.headers_list_view);
 567
 568         if (prefs_display_header_find_header(list_view, entry_text) != -1) {
 569                 alertpanel_error(_("This header is already in the list."));
 570                 return;
 571         }
 572
 573         dp = g_new0(DisplayHeaderProp, 1);
 574
 575         dp->name = g_strdup(entry_text);
 576         dp->hidden = hidden;
 577
 578         model = gtk_tree_view_get_model(list_view);
 579         prefs_display_header_insert_header(GTK_LIST_STORE(model),
 580                                            dp->name, dp);
 581
 582         prefs_display_header_set_list();
 583 }
 584
 585 static void prefs_display_header_register_cb(GtkButton *btn,
 586                                              gpointer hidden_data)
 587 {
 588         prefs_display_header_list_view_set_row(GPOINTER_TO_INT(hidden_data));
 589 }
 590
 591 static void prefs_display_header_delete_cb(GtkButton *btn, gpointer list_view_data)
 592 {
 593         GtkTreeView *list_view = GTK_TREE_VIEW(list_view_data);
 594         DisplayHeaderProp *dp;
 595         GtkListStore *store = GTK_LIST_STORE(gtk_tree_view_get_model(list_view));
 596         GtkTreeSelection *selection = gtk_tree_view_get_selection(list_view);
 597         GtkTreeIter iter;
 598
 599         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
 600                 return;
 601
 602         gtk_tree_model_get(GTK_TREE_MODEL(store), &iter, PREFS_HDR_DATA, &dp, -1);
 603         if (!dp)
 604                 return;
 605
 606         prefs_common.disphdr_list =
 607                 g_slist_remove(prefs_common.disphdr_list, dp);
 608         display_header_prop_free(dp);
 609         gtk_list_store_remove(store, &iter);
 610 }
 611
 612 static void prefs_display_header_up(void)
 613 {
 614         GtkTreePath *prev, *sel, *try;
 615         GtkTreeIter isel;
 616         GtkListStore *store;
 617         GtkTreeIter iprev;
 618
 619         if (!gtk_tree_selection_get_selected
 620                 (gtk_tree_view_get_selection
 621                         (GTK_TREE_VIEW(dispheader.headers_list_view)),
 622                  (GtkTreeModel **) &store,
 623                  &isel))
 624                 return;
 625
 626         sel = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &isel);
 627         if (!sel)
 628                 return;
 629
 630         /* no move if we're at row 0... */
 631         try = gtk_tree_path_copy(sel);
 632         if (!gtk_tree_path_prev(try)) {
 633                 gtk_tree_path_free(try);
 634                 gtk_tree_path_free(sel);
 635                 return;
 636         }
 637
 638         prev = try;
 639         gtk_tree_model_get_iter(GTK_TREE_MODEL(store),
 640                                 &iprev, prev);
 641         gtk_list_store_swap(store, &iprev, &isel);
 642
 643         gtk_tree_path_free(sel);
 644         gtk_tree_path_free(prev);
 645 }
 646
 647 static void prefs_display_header_down(void)
 648 {
 649         GtkListStore *store;
 650         GtkTreeIter next, sel;
 651         GtkTreePath *try;
 652
 653         if (!gtk_tree_selection_get_selected
 654                 (gtk_tree_view_get_selection
 655                         (GTK_TREE_VIEW(dispheader.headers_list_view)),
 656                  (GtkTreeModel **) &store,
 657                  &sel))
 658                 return;
 659
 660         try = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &sel);
 661         if (!try)
 662                 return;
 663
 664         next = sel;
 665         if (gtk_tree_model_iter_next(GTK_TREE_MODEL(store), &next))
 666                 gtk_list_store_swap(store, &next, &sel);
 667
 668         gtk_tree_path_free(try);
 669 }
 670
 671 static gboolean prefs_display_header_key_pressed(GtkWidget *widget,
 672                                              GdkEventKey *event,
 673                                              gpointer data)
 674 {
 675         if (event && event->keyval == GDK_Escape)
 676                 prefs_display_header_cancel();
 677         return FALSE;
 678 }
 679
 680 static void prefs_display_header_ok(void)
 681 {
 682         prefs_common.show_other_header =
 683                 gtk_toggle_button_get_active
 684                         (GTK_TOGGLE_BUTTON(dispheader.other_headers));
 685         prefs_display_header_write_config();
 686         gtk_widget_hide(dispheader.window);
 687 }
 688
 689 static void prefs_display_header_cancel(void)
 690 {
 691         prefs_display_header_read_config();
 692         gtk_widget_hide(dispheader.window);
 693 }
 694
 695 static gint prefs_display_header_deleted(GtkWidget *widget, GdkEventAny *event,
 696                                          gpointer data)
 697 {
 698         prefs_display_header_cancel();
 699         return TRUE;
 700 }
 701
 702 static GtkListStore *prefs_display_header_create_store(void)
 703 {
 704         return gtk_list_store_new(N_PREFS_HDR_COLUMNS,
 705                                   G_TYPE_STRING,
 706                                   G_TYPE_POINTER,
 707                                   -1);
 708 }
 709
 710 static void prefs_display_header_insert_header(GtkListStore *store,
 711                                                gchar *name,
 712                                                DisplayHeaderProp *dp)
 713 {
 714         GtkTreeIter iter;
 715
 716         /* add new */
 717         gtk_list_store_append(store, &iter);
 718         gtk_list_store_set(store, &iter,
 719                            PREFS_HDR_HEADER, name,
 720                            PREFS_HDR_DATA, dp,
 721                            -1);
 722 }
 723
 724 static GtkWidget *prefs_display_header_list_view_create(const gchar *name)
 725 {
 726         GtkWidget *list_view;
 727         GtkTreeSelection *selector;
 728         GtkTreeModel *model;
 729
 730         model = GTK_TREE_MODEL(prefs_display_header_create_store());
 731         list_view = gtk_tree_view_new_with_model(model);
 732         g_object_unref(G_OBJECT(model));
 733
 734         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(list_view), TRUE);
 735
 736         selector = gtk_tree_view_get_selection(GTK_TREE_VIEW(list_view));
 737         gtk_tree_selection_set_mode(selector, GTK_SELECTION_BROWSE);
 738
 739         prefs_filtering_create_list_view_columns(GTK_WIDGET(list_view), name);
 740
 741         return list_view;
 742 }
 743
 744 static void prefs_filtering_create_list_view_columns(GtkWidget *list_view,
 745                                                      const gchar *name)
 746 {
 747         GtkTreeViewColumn *column;
 748         GtkCellRenderer *renderer;
 749
 750         renderer = gtk_cell_renderer_text_new();
 751         column = gtk_tree_view_column_new_with_attributes
 752                 (name, renderer, "text", PREFS_HDR_HEADER, NULL);
 753         gtk_tree_view_append_column(GTK_TREE_VIEW(list_view), column);
 754 }
 755
 756 /*!
 757  *\brief        Called as a result of a drag & drop
 758  */
 759 static void headers_list_model_row_changed(GtkTreeModel *model,
 760                                            GtkTreePath *path,
 761                                            GtkTreeIter *iter,
 762                                            GtkTreeView *list_view)
 763 {
 764         prefs_display_header_set_list();
 765 }
 766
 767 /*!
 768  *\brief        Called as a result of a gtk_list_store_swap()
 769  */
 770 static void headers_list_model_rows_reordered(GtkTreeModel *model,
 771                                               GtkTreePath  *path,
 772                                               GtkTreeIter  *iter,
 773                                               gpointer      arg,
 774                                               GtkTreeView  *list_view)
 775 {
 776         prefs_display_header_set_list();
 777 }
 778
 779 static void drag_begin(GtkTreeView *list_view,
 780                       GdkDragContext *context,
 781                       gpointer data)
 782 {
 783         /* XXX unfortunately a completed drag & drop does not emit
 784          * a "rows_reordered" signal, but a "row_changed" signal.
 785          * So during drag and drop, listen to "row_changed", and
 786          * update the account list accordingly */
 787
 788         GtkTreeModel *model = gtk_tree_view_get_model(list_view);
 789         g_signal_connect(G_OBJECT(model), "row_changed",
 790                          G_CALLBACK(headers_list_model_row_changed),
 791                          list_view);
 792 }
 793
 794 static void drag_end(GtkTreeView *list_view,
 795                     GdkDragContext *context,
 796                     gpointer data)
 797 {
 798         GtkTreeModel *model = gtk_tree_view_get_model(list_view);
 799         g_signal_handlers_disconnect_by_func(G_OBJECT(model),
 800                                              G_CALLBACK(headers_list_model_row_changed),
 801                                              list_view);
 802 }
 803