src/mimeview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   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 <gdk/gdkkeysyms.h>
  29 #include <gtk/gtknotebook.h>
  30 #include <gtk/gtkscrolledwindow.h>
  31 #include <gtk/gtkctree.h>
  32 #include <gtk/gtkvbox.h>
  33 #include <gtk/gtkhbox.h>
  34 #include <gtk/gtkvpaned.h>
  35 #include <gtk/gtktext.h>
  36 #include <gtk/gtksignal.h>
  37 #include <gtk/gtkmenu.h>
  38 #include <gtk/gtkdnd.h>
  39 #include <gtk/gtkselection.h>
  40 #include <gtk/gtktooltips.h>
  41 #include <gtk/gtkcontainer.h>
  42 #include <gtk/gtkbutton.h>
  43 #include <stdio.h>
  44
  45 #ifndef HAVE_APACHE_FNMATCH
  46 /* kludge: apache's fnmatch clashes with <regex.h>, don't include
  47  * fnmatch.h */
  48 #include <fnmatch.h>
  49 #endif
  50
  51 #include "main.h"
  52 #include "mimeview.h"
  53 #include "textview.h"
  54 #include "procmime.h"
  55 #include "summaryview.h"
  56 #include "menu.h"
  57 #include "filesel.h"
  58 #include "alertpanel.h"
  59 #include "inputdialog.h"
  60 #include "utils.h"
  61 #include "gtkutils.h"
  62 #include "prefs_common.h"
  63 #include "procheader.h"
  64 #include "stock_pixmap.h"
  65 #include "gtk/gtkvscrollbutton.h"
  66
  67
  68 typedef enum
  69 {
  70         COL_MIMETYPE = 0,
  71         COL_SIZE     = 1,
  72         COL_NAME     = 2
  73 } MimeViewColumnPos;
  74
  75 #define N_MIMEVIEW_COLS 3
  76
  77 static void mimeview_set_multipart_tree         (MimeView       *mimeview,
  78                                                  MimeInfo       *mimeinfo,
  79                                                  GtkCTreeNode   *parent);
  80 static GtkCTreeNode *mimeview_append_part       (MimeView       *mimeview,
  81                                                  MimeInfo       *partinfo,
  82                                                  GtkCTreeNode   *parent);
  83 static void mimeview_show_message_part          (MimeView       *mimeview,
  84                                                  MimeInfo       *partinfo);
  85 static void mimeview_change_view_type           (MimeView       *mimeview,
  86                                                  MimeViewType    type);
  87 gchar *mimeview_get_filename_for_part           (MimeInfo       *partinfo,
  88                                                  const gchar    *basedir,
  89                                                  gint            number);
  90 static gboolean mimeview_write_part             (const gchar    *filename,
  91                                                  MimeInfo       *partinfo);
  92
  93 static void mimeview_selected           (GtkCTree       *ctree,
  94                                          GtkCTreeNode   *node,
  95                                          gint            column,
  96                                          MimeView       *mimeview);
  97 static void mimeview_start_drag         (GtkWidget      *widget,
  98                                          gint            button,
  99                                          GdkEvent       *event,
 100                                          MimeView       *mimeview);
 101 static gint mimeview_button_pressed     (GtkWidget      *widget,
 102                                          GdkEventButton *event,
 103                                          MimeView       *mimeview);
 104 static gint mimeview_key_pressed        (GtkWidget      *widget,
 105                                          GdkEventKey    *event,
 106                                          MimeView       *mimeview);
 107
 108 static void mimeview_drag_data_get      (GtkWidget        *widget,
 109                                          GdkDragContext   *drag_context,
 110                                          GtkSelectionData *selection_data,
 111                                          guint             info,
 112                                          guint             time,
 113                                          MimeView         *mimeview);
 114
 115 static void mimeview_display_as_text    (MimeView       *mimeview);
 116 static void mimeview_save_as            (MimeView       *mimeview);
 117 static void mimeview_save_all           (MimeView       *mimeview);
 118 static void mimeview_launch             (MimeView       *mimeview);
 119 static void mimeview_open_with          (MimeView       *mimeview);
 120 static void mimeview_view_file          (const gchar    *filename,
 121                                          MimeInfo       *partinfo,
 122                                          const gchar    *cmdline,
 123                                          MimeView       *mimeview);
 124 static gboolean icon_clicked_cb         (GtkWidget      *button,
 125                                          GdkEventButton *event,
 126                                          MimeView       *mimeview);
 127 static void icon_selected               (MimeView       *mimeview,
 128                                          gint            num,
 129                                          MimeInfo       *partinfo);
 130 static gint icon_key_pressed            (GtkWidget      *button,
 131                                          GdkEventKey    *event,
 132                                          MimeView       *mimeview);
 133 static void toggle_icon                 (GtkToggleButton *button,
 134                                          MimeView       *mimeview);
 135 static void icon_list_append_icon       (MimeView       *mimeview,
 136                                          MimeInfo       *mimeinfo);
 137 static void icon_list_create            (MimeView       *mimeview,
 138                                          MimeInfo       *mimeinfo);
 139 static void icon_list_clear             (MimeView       *mimeview);
 140 static void icon_list_toggle_by_mime_info (MimeView     *mimeview,
 141                                            MimeInfo     *mimeinfo);
 142 static gboolean icon_list_select_by_number(MimeView     *mimeview,
 143                                            gint          number);
 144 static void mime_toggle_button_cb       (GtkWidget      *button,
 145                                          MimeView       *mimeview);
 146 static gboolean part_button_pressed     (MimeView       *mimeview,
 147                                          GdkEventButton *event,
 148                                          MimeInfo       *partinfo);
 149 static void icon_scroll_size_allocate_cb(GtkWidget      *widget,
 150                                          GtkAllocation  *layout_size,
 151                                          MimeView       *mimeview);
 152
 153 static GtkItemFactoryEntry mimeview_popup_entries[] =
 154 {
 155         {N_("/_Open"),            NULL, mimeview_launch,          0, NULL},
 156         {N_("/Open _with..."),    NULL, mimeview_open_with,       0, NULL},
 157         {N_("/_Display as text"), NULL, mimeview_display_as_text, 0, NULL},
 158         {N_("/_Save as..."),      NULL, mimeview_save_as,         0, NULL},
 159         {N_("/Save _all..."),     NULL, mimeview_save_all,        0, NULL},
 160 };
 161
 162 static GtkTargetEntry mimeview_mime_types[] =
 163 {
 164         {"text/uri-list", 0, 0}
 165 };
 166
 167 GSList *mimeviewer_factories;
 168 GSList *mimeviews;
 169
 170 MimeView *mimeview_create(MainWindow *mainwin)
 171 {
 172         MimeView *mimeview;
 173
 174         GtkWidget *paned;
 175         GtkWidget *scrolledwin;
 176         GtkWidget *ctree;
 177         GtkWidget *mime_notebook;
 178         GtkWidget *popupmenu;
 179         GtkWidget *ctree_mainbox;
 180         GtkWidget *vbox;
 181         GtkWidget *mime_toggle;
 182         GtkWidget *icon_mainbox;
 183         GtkWidget *icon_scroll;
 184         GtkWidget *icon_vbox;
 185         GtkWidget *arrow;
 186         GtkWidget *scrollbutton;
 187         GtkWidget *hbox;
 188         GtkTooltips *tooltips;
 189         GtkItemFactory *popupfactory;
 190         NoticeView *siginfoview;
 191         gchar *titles[N_MIMEVIEW_COLS];
 192         gint n_entries;
 193         gint i;
 194
 195         debug_print("Creating MIME view...\n");
 196         mimeview = g_new0(MimeView, 1);
 197
 198         titles[COL_MIMETYPE] = _("MIME Type");
 199         titles[COL_SIZE]     = _("Size");
 200         titles[COL_NAME]     = _("Name");
 201
 202         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 203         gtk_widget_show(scrolledwin);
 204         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 205                                        GTK_POLICY_AUTOMATIC,
 206                                        GTK_POLICY_AUTOMATIC);
 207
 208         ctree = gtk_sctree_new_with_titles(N_MIMEVIEW_COLS, 0, titles);
 209         gtk_widget_show(ctree);
 210         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 211         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
 212         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_SIZE,
 213                                            GTK_JUSTIFY_RIGHT);
 214         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_MIMETYPE, 240);
 215         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_SIZE, 90);
 216         for (i = 0; i < N_MIMEVIEW_COLS; i++)
 217                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 218                                        GTK_CAN_FOCUS);
 219         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 220
 221         g_signal_connect(G_OBJECT(ctree), "tree_select_row",
 222                          G_CALLBACK(mimeview_selected), mimeview);
 223         g_signal_connect(G_OBJECT(ctree), "button_release_event",
 224                          G_CALLBACK(mimeview_button_pressed), mimeview);
 225         g_signal_connect(G_OBJECT(ctree), "key_press_event",
 226                          G_CALLBACK(mimeview_key_pressed), mimeview);
 227         g_signal_connect(G_OBJECT (ctree),"start_drag",
 228                          G_CALLBACK (mimeview_start_drag), mimeview);
 229         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
 230                          G_CALLBACK(mimeview_drag_data_get), mimeview);
 231
 232         mime_notebook = gtk_notebook_new();
 233         gtk_widget_show(mime_notebook);
 234         GTK_WIDGET_UNSET_FLAGS(mime_notebook, GTK_CAN_FOCUS);
 235         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(mime_notebook), FALSE);
 236         gtk_notebook_set_show_border(GTK_NOTEBOOK(mime_notebook), FALSE);
 237
 238         icon_vbox = gtk_vbox_new(FALSE, 2);
 239         gtk_widget_show(icon_vbox);
 240         icon_scroll = gtk_layout_new(NULL, NULL);
 241         gtk_widget_show(icon_scroll);
 242         gtk_layout_put(GTK_LAYOUT(icon_scroll), icon_vbox, 0, 0);
 243         scrollbutton = gtk_vscrollbutton_new(gtk_layout_get_vadjustment(GTK_LAYOUT(icon_scroll)));
 244         gtk_widget_show(scrollbutton);
 245
 246         mime_toggle = gtk_toggle_button_new();
 247         gtk_widget_show(mime_toggle);
 248         arrow = gtk_arrow_new(GTK_ARROW_LEFT, GTK_SHADOW_NONE);
 249         gtk_widget_show(arrow);
 250         gtk_container_add(GTK_CONTAINER(mime_toggle), arrow);
 251         g_signal_connect(G_OBJECT(mime_toggle), "toggled",
 252                          G_CALLBACK(mime_toggle_button_cb), mimeview);
 253
 254         icon_mainbox = gtk_vbox_new(FALSE, 0);
 255         gtk_widget_show(icon_mainbox);
 256         gtk_box_pack_start(GTK_BOX(icon_mainbox), mime_toggle, FALSE, FALSE, 0);
 257         gtk_box_pack_start(GTK_BOX(icon_mainbox), icon_scroll, TRUE, TRUE, 3);
 258         gtk_box_pack_end(GTK_BOX(icon_mainbox), scrollbutton, FALSE, FALSE, 0);
 259         g_signal_connect(G_OBJECT(icon_mainbox), "size_allocate",
 260                          G_CALLBACK(icon_scroll_size_allocate_cb), mimeview);
 261
 262         ctree_mainbox = gtk_hbox_new(FALSE, 0);
 263         gtk_box_pack_start(GTK_BOX(ctree_mainbox), scrolledwin, TRUE, TRUE, 0);
 264
 265         n_entries = sizeof(mimeview_popup_entries) /
 266                 sizeof(mimeview_popup_entries[0]);
 267         popupmenu = menu_create_items(mimeview_popup_entries, n_entries,
 268                                       "<MimeView>", &popupfactory, mimeview);
 269         tooltips = gtk_tooltips_new();
 270         gtk_tooltips_set_delay(tooltips, 0);
 271
 272         vbox = gtk_vbox_new(FALSE, 0);
 273         gtk_widget_show(vbox);
 274         siginfoview = noticeview_create(mainwin);
 275         noticeview_hide(siginfoview);
 276         noticeview_set_icon_clickable(siginfoview, TRUE);
 277         gtk_box_pack_start(GTK_BOX(vbox), mime_notebook, TRUE, TRUE, 0);
 278         gtk_box_pack_end(GTK_BOX(vbox), GTK_WIDGET_PTR(siginfoview), FALSE, FALSE, 0);
 279
 280         paned = gtk_vpaned_new();
 281         gtk_widget_show(paned);
 282         gtk_paned_set_gutter_size(GTK_PANED(paned), 0);
 283         gtk_paned_pack1(GTK_PANED(paned), ctree_mainbox, FALSE, TRUE);
 284         gtk_paned_pack2(GTK_PANED(paned), vbox, TRUE, TRUE);
 285
 286         hbox = gtk_hbox_new(FALSE, 0);
 287         gtk_box_pack_start(GTK_BOX(hbox), paned, TRUE, TRUE, 0);
 288         gtk_box_pack_start(GTK_BOX(hbox), icon_mainbox, FALSE, FALSE, 0);
 289
 290         gtk_widget_show(hbox);
 291         gtk_widget_hide(ctree_mainbox);
 292
 293         mimeview->hbox          = hbox;
 294         mimeview->paned         = paned;
 295         mimeview->scrolledwin   = scrolledwin;
 296         mimeview->ctree         = ctree;
 297         mimeview->mime_notebook = mime_notebook;
 298         mimeview->popupmenu     = popupmenu;
 299         mimeview->popupfactory  = popupfactory;
 300         mimeview->type          = -1;
 301         mimeview->ctree_mainbox = ctree_mainbox;
 302         mimeview->icon_scroll   = icon_scroll;
 303         mimeview->icon_vbox     = icon_vbox;
 304         mimeview->icon_mainbox  = icon_mainbox;
 305         mimeview->icon_count    = 0;
 306         mimeview->mainwin       = mainwin;
 307         mimeview->tooltips      = tooltips;
 308         mimeview->oldsize       = 60;
 309         mimeview->mime_toggle   = mime_toggle;
 310         mimeview->siginfoview   = siginfoview;
 311
 312         mimeview->target_list   = gtk_target_list_new(mimeview_mime_types, 1);
 313
 314         mimeviews = g_slist_prepend(mimeviews, mimeview);
 315
 316         return mimeview;
 317 }
 318
 319 void mimeview_init(MimeView *mimeview)
 320 {
 321         textview_init(mimeview->textview);
 322
 323         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 324                 GTK_WIDGET_PTR(mimeview->textview));
 325 }
 326
 327 void mimeview_show_message(MimeView *mimeview, MimeInfo *mimeinfo,
 328                            const gchar *file)
 329 {
 330         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 331         GtkCTreeNode *node;
 332
 333         mimeview_clear(mimeview);
 334
 335         g_return_if_fail(file != NULL);
 336         g_return_if_fail(mimeinfo != NULL);
 337
 338         mimeview->mimeinfo = mimeinfo;
 339
 340         mimeview->file = g_strdup(file);
 341
 342         g_signal_handlers_block_by_func(G_OBJECT(ctree), mimeview_selected,
 343                                         mimeview);
 344
 345         mimeview_set_multipart_tree(mimeview, mimeinfo, NULL);
 346         icon_list_create(mimeview, mimeinfo);
 347
 348         g_signal_handlers_unblock_by_func(G_OBJECT(ctree),
 349                                           mimeview_selected, mimeview);
 350
 351         node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 352         if (node) {
 353                 gtk_ctree_select(ctree, node);
 354                 icon_list_toggle_by_mime_info
 355                         (mimeview, gtk_ctree_node_get_row_data(ctree, node));
 356                 gtkut_ctree_set_focus_row(ctree, node);
 357         }
 358 }
 359
 360 #ifdef USE_PTHREAD
 361 static void mimeview_check_sig_cancel_now(MimeView *mimeview);
 362 #endif
 363
 364 static void mimeview_free_mimeinfo(MimeView *mimeview)
 365 {
 366         gboolean defer = FALSE;
 367 #ifdef USE_PTHREAD
 368         defer = (mimeview->check_data != NULL);
 369         if (defer)
 370                 mimeview->check_data->free_after_use = TRUE;
 371 #endif
 372         if (mimeview->mimeinfo != NULL && !defer) {
 373                 procmime_mimeinfo_free_all(mimeview->mimeinfo);
 374                 mimeview->mimeinfo = NULL;
 375         } else if (defer) {
 376 #ifdef USE_PTHREAD
 377                 debug_print("deferring free(mimeinfo) and cancelling check\n");
 378                 mimeview_check_sig_cancel_now(mimeview);
 379 #endif
 380         }
 381 }
 382
 383 void mimeview_destroy(MimeView *mimeview)
 384 {
 385         GSList *cur;
 386
 387         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 388                 MimeViewer *viewer = (MimeViewer *) cur->data;
 389                 viewer->destroy_viewer(viewer);
 390         }
 391         g_slist_free(mimeview->viewers);
 392         gtk_target_list_unref(mimeview->target_list);
 393
 394         mimeview_free_mimeinfo(mimeview);
 395 #ifdef USE_PTHREAD
 396         if (mimeview->check_data) {
 397                 mimeview->check_data->destroy_mimeview = TRUE;
 398                 debug_print("deferring destroy\n");
 399         } else
 400 #endif
 401         {
 402                 g_free(mimeview->file);
 403                 g_free(mimeview);
 404                 mimeviews = g_slist_remove(mimeviews, mimeview);
 405         }
 406
 407 }
 408
 409 MimeInfo *mimeview_get_selected_part(MimeView *mimeview)
 410 {
 411         return gtk_ctree_node_get_row_data
 412                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
 413 }
 414
 415 static void mimeview_set_multipart_tree(MimeView *mimeview,
 416                                         MimeInfo *mimeinfo,
 417                                         GtkCTreeNode *parent)
 418 {
 419         GtkCTreeNode *node;
 420
 421         g_return_if_fail(mimeinfo != NULL);
 422
 423         while (mimeinfo != NULL) {
 424                 node = mimeview_append_part(mimeview, mimeinfo, parent);
 425
 426                 if (mimeinfo->node->children)
 427                         mimeview_set_multipart_tree(mimeview, (MimeInfo *) mimeinfo->node->children->data, node);
 428                 mimeinfo = mimeinfo->node->next != NULL ? (MimeInfo *) mimeinfo->node->next->data : NULL;
 429         }
 430 }
 431
 432 static const gchar *get_part_name(MimeInfo *partinfo)
 433 {
 434         const gchar *name;
 435
 436         name = procmime_mimeinfo_get_parameter(partinfo, "filename");
 437         if (name == NULL)
 438                 name = procmime_mimeinfo_get_parameter(partinfo, "name");
 439         if (name == NULL)
 440                 name = "";
 441
 442         return name;
 443 }
 444
 445 static const gchar *get_part_description(MimeInfo *partinfo)
 446 {
 447         if (partinfo->description)
 448                 return partinfo->description;
 449         else
 450                 return get_part_name(partinfo);
 451 }
 452
 453 static GtkCTreeNode *mimeview_append_part(MimeView *mimeview,
 454                                           MimeInfo *partinfo,
 455                                           GtkCTreeNode *parent)
 456 {
 457         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 458         GtkCTreeNode *node;
 459         static gchar content_type[64];
 460         gchar *str[N_MIMEVIEW_COLS];
 461
 462         if (partinfo->type != MIMETYPE_UNKNOWN && partinfo->subtype) {
 463                 g_snprintf(content_type, 64, "%s/%s", procmime_get_media_type_str(partinfo->type), partinfo->subtype);
 464         } else {
 465                 g_snprintf(content_type, 64, "UNKNOWN");
 466         }
 467
 468         str[COL_MIMETYPE] = content_type;
 469         str[COL_SIZE] = to_human_readable(partinfo->length);
 470         if (prefs_common.attach_desc)
 471                 str[COL_NAME] = (gchar *) get_part_description(partinfo);
 472         else
 473                 str[COL_NAME] = (gchar *) get_part_name(partinfo);
 474
 475         node = gtk_sctree_insert_node(ctree, parent, NULL, str, 0,
 476                                      NULL, NULL, NULL, NULL,
 477                                      FALSE, TRUE);
 478         gtk_ctree_node_set_row_data(ctree, node, partinfo);
 479
 480         return node;
 481 }
 482
 483 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
 484 {
 485         FILE *fp;
 486         const gchar *fname;
 487
 488         if (!partinfo) return;
 489
 490         fname = mimeview->file;
 491         if (!fname) return;
 492
 493         if ((fp = g_fopen(fname, "rb")) == NULL) {
 494                 FILE_OP_ERROR(fname, "fopen");
 495                 return;
 496         }
 497
 498         if (fseek(fp, partinfo->offset, SEEK_SET) < 0) {
 499                 FILE_OP_ERROR(mimeview->file, "fseek");
 500                 fclose(fp);
 501                 return;
 502         }
 503
 504         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 505         textview_show_part(mimeview->textview, partinfo, fp);
 506
 507         fclose(fp);
 508 }
 509
 510 static MimeViewer *get_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 511 {
 512         GSList *cur;
 513         MimeViewerFactory *factory = NULL;
 514         MimeViewer *viewer = NULL;
 515
 516 /*
 517  * FNM_CASEFOLD is a GNU extension
 518  * if its not defined copy the string to the stack and
 519  * convert the copy to lower case
 520  */
 521 #ifndef FNM_CASEFOLD
 522 #define FNM_CASEFOLD 0
 523         Xstrdup_a(content_type, content_type, return NULL);
 524         g_strdown((gchar *)content_type);
 525 #endif
 526
 527         for (cur = mimeviewer_factories; cur != NULL; cur = g_slist_next(cur)) {
 528                 MimeViewerFactory *curfactory = cur->data;
 529                 gint i = 0;
 530
 531                 while (curfactory->content_types[i] != NULL) {
 532                         if(!fnmatch(curfactory->content_types[i], content_type, FNM_CASEFOLD)) {
 533                                 debug_print("%s\n", curfactory->content_types[i]);
 534                                 factory = curfactory;
 535                                 break;
 536                         }
 537                         i++;
 538                 }
 539                 if (factory != NULL)
 540                         break;
 541         }
 542         if (factory == NULL)
 543                 return NULL;
 544
 545         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 546                 MimeViewer *curviewer = cur->data;
 547
 548                 if (curviewer->factory == factory)
 549                         return curviewer;
 550         }
 551         viewer = factory->create_viewer();
 552         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 553                 GTK_WIDGET(viewer->get_widget(viewer)));
 554
 555         mimeview->viewers = g_slist_append(mimeview->viewers, viewer);
 556
 557         return viewer;
 558 }
 559
 560 static MimeViewer *get_viewer_for_mimeinfo(MimeView *mimeview, MimeInfo *partinfo)
 561 {
 562         gchar *content_type = NULL;
 563         MimeViewer *viewer = NULL;
 564
 565         if ((partinfo->type == MIMETYPE_APPLICATION) &&
 566             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
 567                 const gchar *filename;
 568
 569                 filename = procmime_mimeinfo_get_parameter(partinfo, "filename");
 570                 if (filename == NULL)
 571                         filename = procmime_mimeinfo_get_parameter(partinfo, "name");
 572                 if (filename != NULL)
 573                         content_type = procmime_get_mime_type(filename);
 574         } else {
 575                 content_type = procmime_get_content_type_str(partinfo->type, partinfo->subtype);
 576         }
 577
 578         if (content_type != NULL) {
 579                 viewer = get_viewer_for_content_type(mimeview, content_type);
 580                 g_free(content_type);
 581         }
 582
 583         return viewer;
 584 }
 585
 586 gboolean mimeview_show_part(MimeView *mimeview, MimeInfo *partinfo)
 587 {
 588         MimeViewer *viewer;
 589
 590         viewer = get_viewer_for_mimeinfo(mimeview, partinfo);
 591         if (viewer == NULL) {
 592                 if (mimeview->mimeviewer != NULL)
 593                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 594                 mimeview->mimeviewer = NULL;
 595                 return FALSE;
 596         }
 597
 598         if (mimeview->mimeviewer != NULL)
 599                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 600
 601         if (mimeview->mimeviewer != viewer) {
 602                 mimeview->mimeviewer = viewer;
 603                 mimeview_change_view_type(mimeview, MIMEVIEW_VIEWER);
 604         }
 605         viewer->mimeview = mimeview;
 606         viewer->show_mimepart(viewer, mimeview->file, partinfo);
 607
 608         return TRUE;
 609 }
 610
 611 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
 612 {
 613         TextView  *textview  = mimeview->textview;
 614
 615         if ((mimeview->type != MIMEVIEW_VIEWER) &&
 616             (mimeview->type == type)) return;
 617
 618         switch (type) {
 619         case MIMEVIEW_TEXT:
 620                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 621                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 622                         GTK_WIDGET_PTR(textview)));
 623                 break;
 624         case MIMEVIEW_VIEWER:
 625                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 626                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 627                         GTK_WIDGET(mimeview->mimeviewer->get_widget(mimeview->mimeviewer))));
 628                 break;
 629         default:
 630                 return;
 631         }
 632
 633         mimeview->type = type;
 634 }
 635
 636 void mimeview_clear(MimeView *mimeview)
 637 {
 638         GtkCList *clist = NULL;
 639
 640         if (!mimeview)
 641                 return;
 642
 643         if (g_slist_find(mimeviews, mimeview) == NULL)
 644                 return;
 645
 646         clist = GTK_CLIST(mimeview->ctree);
 647
 648         noticeview_hide(mimeview->siginfoview);
 649
 650         gtk_clist_clear(clist);
 651         textview_clear(mimeview->textview);
 652         if (mimeview->mimeviewer != NULL)
 653                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 654
 655         mimeview_free_mimeinfo(mimeview);
 656
 657         mimeview->mimeinfo = NULL;
 658
 659         mimeview->opened = NULL;
 660
 661         g_free(mimeview->file);
 662         mimeview->file = NULL;
 663
 664         icon_list_clear(mimeview);
 665         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 666 }
 667
 668 static void check_signature_cb(GtkWidget *widget, gpointer user_data);
 669 void mimeview_check_signature(MimeView *mimeview);
 670 static void display_full_info_cb(GtkWidget *widget, gpointer user_data);
 671
 672 static void update_signature_noticeview(MimeView *mimeview, MimeInfo *mimeinfo,
 673                                         gboolean special, SignatureStatus code)
 674 {
 675         gchar *text = NULL, *button_text = NULL;
 676         void  *func = NULL;
 677         StockPixmap icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 678         SignatureStatus mycode = SIGNATURE_UNCHECKED;
 679
 680         g_return_if_fail(mimeview != NULL);
 681         g_return_if_fail(mimeinfo != NULL);
 682
 683         if (special)
 684                 mycode = code;
 685         else
 686                 mycode = privacy_mimeinfo_get_sig_status(mimeinfo);
 687
 688         switch (mycode) {
 689         case SIGNATURE_UNCHECKED:
 690                 button_text = _("Check signature");
 691                 func = check_signature_cb;
 692                 icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 693                 break;
 694         case SIGNATURE_OK:
 695                 button_text = _("View full information");
 696                 func = display_full_info_cb;
 697                 icon = STOCK_PIXMAP_PRIVACY_PASSED;
 698                 break;
 699         case SIGNATURE_WARN:
 700                 button_text = _("View full information");
 701                 func = display_full_info_cb;
 702                 icon = STOCK_PIXMAP_PRIVACY_WARN;
 703                 break;
 704         case SIGNATURE_INVALID:
 705                 button_text = _("View full information");
 706                 func = display_full_info_cb;
 707                 icon = STOCK_PIXMAP_PRIVACY_FAILED;
 708                 break;
 709         case SIGNATURE_CHECK_FAILED:
 710                 button_text = _("Check again");
 711                 func = check_signature_cb;
 712                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 713         case SIGNATURE_CHECK_TIMEOUT:
 714                 button_text = _("Check again");
 715                 func = check_signature_cb;
 716                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 717         default:
 718                 break;
 719         }
 720         if (mycode == SIGNATURE_UNCHECKED) {
 721                 gchar *tmp = privacy_mimeinfo_sig_info_short(mimeinfo);
 722                 text = g_strdup_printf("%s %s",
 723                         tmp, _("Click the icon or hit 'C' to check it."));
 724                 g_free(tmp);
 725         } else if (mycode != SIGNATURE_CHECK_TIMEOUT) {
 726                 text = privacy_mimeinfo_sig_info_short(mimeinfo);
 727         } else if (mycode == SIGNATURE_CHECK_TIMEOUT) {
 728                 text = g_strdup(_("Timeout checking the signature. Click the icon or hit 'C' to try again."));
 729         }
 730
 731         noticeview_set_text(mimeview->siginfoview, text);
 732         gtk_label_set_selectable(GTK_LABEL(mimeview->siginfoview->text), TRUE);
 733
 734         g_free(text);
 735         noticeview_set_button_text(mimeview->siginfoview, NULL);
 736         noticeview_set_button_press_callback(
 737                 mimeview->siginfoview,
 738                 G_CALLBACK(func),
 739                 (gpointer) mimeview);
 740         noticeview_set_icon(mimeview->siginfoview, icon);
 741         noticeview_set_tooltip(mimeview->siginfoview, button_text);
 742 }
 743
 744 #ifdef USE_PTHREAD
 745
 746 /* reset all thread stuff, and do the cleanups we've been left to do */
 747 static void mimeview_check_data_reset(MimeView *mimeview)
 748 {
 749         if (!mimeview->check_data)
 750                 return;
 751
 752         if (mimeview->check_data->free_after_use) {
 753                 debug_print("freeing deferred mimeinfo\n");
 754                 procmime_mimeinfo_free_all(mimeview->check_data->siginfo);
 755         }
 756         if (mimeview->check_data->destroy_mimeview) {
 757                 debug_print("freeing deferred mimeview\n");
 758                 g_free(mimeview->file);
 759                 g_free(mimeview);
 760                 mimeviews = g_slist_remove(mimeviews, mimeview);
 761         }
 762
 763         g_free(mimeview->check_data);
 764         mimeview->check_data = NULL;
 765 }
 766
 767 /* GUI update once the checker thread is done or killed */
 768 static gboolean mimeview_check_sig_thread_cb(void *data)
 769 {
 770         MimeView *mimeview = (MimeView *) data;
 771         MimeInfo *mimeinfo = mimeview->siginfo;
 772
 773         debug_print("mimeview_check_sig_thread_cb\n");
 774
 775         if (mimeinfo == NULL) {
 776                 /* message changed !? */
 777                 g_warning("no more siginfo!\n");
 778                 goto end;
 779         }
 780
 781         if (!mimeview->check_data) {
 782                 g_warning("nothing to check\n");
 783                 return FALSE;
 784         }
 785
 786         if (mimeview->check_data->siginfo != mimeinfo) {
 787                 /* message changed !? */
 788                 g_warning("different siginfo!\n");
 789                 goto end;
 790         }
 791
 792         if (mimeview->check_data->destroy_mimeview ||
 793             mimeview->check_data->free_after_use) {
 794                 debug_print("not bothering, we're changing message\n");
 795                 goto end;
 796         }
 797
 798         /* update status */
 799         if (mimeview->check_data->timeout)
 800                 update_signature_noticeview(mimeview, mimeview->siginfo,
 801                         TRUE, SIGNATURE_CHECK_TIMEOUT);
 802         else
 803                 update_signature_noticeview(mimeview, mimeview->siginfo,
 804                         FALSE, 0);
 805         icon_list_clear(mimeview);
 806         icon_list_create(mimeview, mimeview->mimeinfo);
 807
 808 end:
 809         mimeview_check_data_reset(mimeview);
 810         return FALSE;
 811 }
 812
 813 /* sig checker thread */
 814 static void *mimeview_check_sig_worker_thread(void *data)
 815 {
 816         MimeView *mimeview = (MimeView *)data;
 817         MimeInfo *mimeinfo = mimeview->siginfo;
 818
 819         debug_print("checking...\n");
 820
 821         if (!mimeview->check_data)
 822                 return NULL;
 823
 824         if (mimeinfo && mimeinfo == mimeview->check_data->siginfo)
 825                 privacy_mimeinfo_check_signature(mimeinfo);
 826         else {
 827                 /* that's strange! we changed message without
 828                  * getting killed. */
 829                 g_warning("different siginfo!\n");
 830                 mimeview_check_data_reset(mimeview);
 831                 return NULL;
 832         }
 833
 834         /* use g_timeout so that GUI updates is done from the
 835          * correct thread */
 836         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 837
 838         return NULL;
 839 }
 840
 841 /* killer thread - acts when the checker didn't work fast
 842  * enough. */
 843 static void *mimeview_check_sig_cancel_thread(void *data)
 844 {
 845         MimeView *mimeview = (MimeView *)data;
 846
 847         if (!mimeview->check_data)
 848                 return NULL; /* nothing to kill ! */
 849
 850         /* wait for a few seconds... */
 851         debug_print("waiting a while\n");
 852
 853         sleep(5);
 854
 855         if (!mimeview->check_data)
 856                 return NULL; /* nothing to kill, it's done in time :) */
 857
 858         /* too late, go away checker thread */
 859         debug_print("killing checker thread\n");
 860         pthread_cancel(mimeview->check_data->th);
 861
 862         /* tell upstream it was a timeout */
 863         mimeview->check_data->timeout = TRUE;
 864         /* use g_timeout so that GUI updates is done from the
 865          * correct thread */
 866         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 867
 868         return NULL;
 869 }
 870
 871 /* get rid of the checker thread right now - used when changing the
 872  * displayed message for example. */
 873 static void mimeview_check_sig_cancel_now(MimeView *mimeview)
 874 {
 875         if (!mimeview->check_data)
 876                 return;
 877         debug_print("killing checker thread NOW\n");
 878         pthread_cancel(mimeview->check_data->th);
 879
 880         /* tell upstream it was a timeout */
 881         mimeview->check_data->timeout = TRUE;
 882         mimeview_check_sig_thread_cb(mimeview);
 883         return;
 884 }
 885
 886 /* creates a thread to check the signature, and a second one
 887  * to kill the first one after a timeout */
 888 static void mimeview_check_sig_in_thread(MimeView *mimeview)
 889 {
 890         pthread_t th, th2;
 891         pthread_attr_t detach, detach2;
 892
 893         if (mimeview->check_data) {
 894                 g_warning("already checking it");
 895                 return;
 896         }
 897
 898         mimeview->check_data = g_new0(SigCheckData, 1);
 899         mimeview->check_data->siginfo = mimeview->siginfo;
 900         debug_print("creating thread\n");
 901
 902         pthread_attr_init(&detach);
 903         pthread_attr_setdetachstate(&detach, TRUE);
 904
 905         pthread_attr_init(&detach2);
 906         pthread_attr_setdetachstate(&detach2, TRUE);
 907
 908         /* create the checker thread */
 909         if (pthread_create(&th, &detach,
 910                         mimeview_check_sig_worker_thread,
 911                         mimeview) != 0) {
 912                 /* arh. We'll do it synchronously. */
 913                 g_warning("can't create thread");
 914                 g_free(mimeview->check_data);
 915                 mimeview->check_data = NULL;
 916                 return;
 917         } else
 918                 mimeview->check_data->th = th;
 919
 920         /* create the killer thread */
 921         pthread_create(&th2, &detach2,
 922                         mimeview_check_sig_cancel_thread,
 923                         mimeview);
 924 }
 925 #endif
 926
 927 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
 928 {
 929         MimeView *mimeview = (MimeView *) user_data;
 930         MimeInfo *mimeinfo = mimeview->siginfo;
 931
 932         if (mimeinfo == NULL)
 933                 return;
 934 #ifdef USE_PTHREAD
 935         if (mimeview->check_data)
 936                 return;
 937 #endif
 938         noticeview_set_text(mimeview->siginfoview, _("Checking signature..."));
 939         GTK_EVENTS_FLUSH();
 940 #if (defined USE_PTHREAD && defined __GLIBC__ && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)))
 941         /* let's do it non-blocking */
 942         mimeview_check_sig_in_thread(mimeview);
 943         if (!mimeview->check_data) /* let's check syncronously */
 944 #endif
 945         {
 946                 debug_print("checking without thread\n");
 947                 privacy_mimeinfo_check_signature(mimeinfo);
 948                 update_signature_noticeview(mimeview, mimeview->siginfo, FALSE, 0);
 949                 icon_list_clear(mimeview);
 950                 icon_list_create(mimeview, mimeview->mimeinfo);
 951         }
 952 }
 953
 954 void mimeview_check_signature(MimeView *mimeview)
 955 {
 956         check_signature_cb(NULL, mimeview);
 957 }
 958
 959 static void redisplay_email(GtkWidget *widget, gpointer user_data)
 960 {
 961         MimeView *mimeview = (MimeView *) user_data;
 962         GtkCTreeNode *node = mimeview->opened;
 963         mimeview->opened = NULL;
 964         mimeview_selected(GTK_CTREE(mimeview->ctree), node, 0, mimeview);
 965 }
 966
 967 static void display_full_info_cb(GtkWidget *widget, gpointer user_data)
 968 {
 969         MimeView *mimeview = (MimeView *) user_data;
 970         gchar *siginfo;
 971
 972         siginfo = privacy_mimeinfo_sig_info_full(mimeview->siginfo);
 973         textview_set_text(mimeview->textview, siginfo);
 974         g_free(siginfo);
 975         noticeview_set_button_text(mimeview->siginfoview, NULL);
 976         noticeview_set_button_press_callback(
 977                 mimeview->siginfoview,
 978                 G_CALLBACK(redisplay_email),
 979                 (gpointer) mimeview);
 980         noticeview_set_tooltip(mimeview->siginfoview, _("Go back to email"));
 981 }
 982
 983 static void update_signature_info(MimeView *mimeview, MimeInfo *selected)
 984 {
 985         MimeInfo *siginfo;
 986         MimeInfo *first_text;
 987
 988         g_return_if_fail(mimeview != NULL);
 989         g_return_if_fail(selected != NULL);
 990
 991         if (selected->type == MIMETYPE_MESSAGE
 992         &&  !g_ascii_strcasecmp(selected->subtype, "rfc822")) {
 993                 /* if the first text part is signed, check that */
 994                 first_text = selected;
 995                 while (first_text && first_text->type != MIMETYPE_TEXT) {
 996                         first_text = procmime_mimeinfo_next(first_text);
 997                 }
 998                 if (first_text) {
 999                         update_signature_info(mimeview, first_text);
1000                         return;
1001                 }
1002         }
1003
1004         siginfo = selected;
1005         while (siginfo != NULL) {
1006                 if (privacy_mimeinfo_is_signed(siginfo))
1007                         break;
1008                 siginfo = procmime_mimeinfo_parent(siginfo);
1009         }
1010         mimeview->siginfo = siginfo;
1011
1012         if (siginfo == NULL) {
1013                 noticeview_hide(mimeview->siginfoview);
1014                 return;
1015         }
1016
1017         update_signature_noticeview(mimeview, siginfo, FALSE, 0);
1018         noticeview_show(mimeview->siginfoview);
1019 }
1020
1021 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
1022                               MimeView *mimeview)
1023 {
1024         MimeInfo *partinfo;
1025         if (mimeview->opened == node) return;
1026         mimeview->opened = node;
1027         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
1028
1029         partinfo = gtk_ctree_node_get_row_data(ctree, node);
1030         if (!partinfo) return;
1031
1032         /* ungrab the mouse event */
1033         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1034                 gtk_grab_remove(GTK_WIDGET(ctree));
1035                 if (gdk_pointer_is_grabbed())
1036                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1037         }
1038
1039         mimeview->textview->default_text = FALSE;
1040
1041         update_signature_info(mimeview, partinfo);
1042
1043         if (!mimeview_show_part(mimeview, partinfo)) {
1044                 switch (partinfo->type) {
1045                 case MIMETYPE_TEXT:
1046                 case MIMETYPE_MESSAGE:
1047                 case MIMETYPE_MULTIPART:
1048                         mimeview_show_message_part(mimeview, partinfo);
1049
1050                         break;
1051                 default:
1052                         mimeview->textview->default_text = TRUE;
1053                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1054                         textview_clear(mimeview->textview);
1055                         textview_show_mime_part(mimeview->textview, partinfo);
1056
1057 #if 0 /* this sucks. I'll do better. */
1058                         val = alertpanel_full(_("Unknown part type"),
1059                                               _("The type of this part is unknown. What would you like "
1060                                                 "to do with it?"),
1061                                               GTK_STOCK_SAVE, GTK_STOCK_OPEN, _("Display as text"),
1062                                               FALSE, NULL, ALERT_WARNING, G_ALERTALTERNATE);
1063                         switch (val) {
1064                                 case G_ALERTDEFAULT:
1065                                         mimeview_save_as(mimeview);
1066                                         break;
1067                                 case G_ALERTALTERNATE:
1068                                         mimeview_open_with(mimeview);
1069                                         break;
1070                                 case G_ALERTOTHER:
1071                                         mimeview_display_as_text(mimeview);
1072                                         break;
1073                                 default:
1074                         }
1075 #endif
1076                         break;
1077                 }
1078         }
1079 }
1080
1081 static void mimeview_start_drag(GtkWidget *widget, gint button,
1082                                 GdkEvent *event, MimeView *mimeview)
1083 {
1084         GdkDragContext *context;
1085         MimeInfo *partinfo;
1086
1087         g_return_if_fail(mimeview != NULL);
1088
1089         partinfo = mimeview_get_selected_part(mimeview);
1090         if (partinfo->disposition == DISPOSITIONTYPE_INLINE) return;
1091
1092         context = gtk_drag_begin(widget, mimeview->target_list,
1093                                  GDK_ACTION_COPY, button, event);
1094         gtk_drag_set_icon_default(context);
1095 }
1096
1097 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
1098                                     MimeView *mimeview)
1099 {
1100         GtkCList *clist = GTK_CLIST(widget);
1101         gint row, column;
1102
1103         if (!event) return FALSE;
1104
1105         if (event->button == 2 || event->button == 3) {
1106                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1107                                                   &row, &column))
1108                         return FALSE;
1109                 gtk_clist_unselect_all(clist);
1110                 gtk_clist_select_row(clist, row, column);
1111                 gtkut_clist_set_focus_row(clist, row);
1112         }
1113         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
1114
1115         return FALSE;
1116 }
1117
1118 /* from gdkevents.c */
1119 #define DOUBLE_CLICK_TIME 250
1120
1121 static gboolean part_button_pressed(MimeView *mimeview, GdkEventButton *event,
1122                                     MimeInfo *partinfo)
1123 {
1124         static MimeInfo *lastinfo;
1125         static guint32 lasttime;
1126
1127         if (event->button == 2 ||
1128             (event->button == 1 && (event->time - lasttime) < DOUBLE_CLICK_TIME && lastinfo == partinfo)) {
1129                 /* call external program for image, audio or html */
1130                 mimeview_launch(mimeview);
1131                 return TRUE;
1132         } else if (event->button == 3) {
1133                 if (partinfo && (partinfo->type == MIMETYPE_TEXT ||
1134                                  partinfo->type == MIMETYPE_MESSAGE ||
1135                                  partinfo->type == MIMETYPE_IMAGE ||
1136                                  partinfo->type == MIMETYPE_MULTIPART))
1137                         menu_set_sensitive(mimeview->popupfactory,
1138                                            "/Display as text", FALSE);
1139                 else
1140                         menu_set_sensitive(mimeview->popupfactory,
1141                                            "/Display as text", TRUE);
1142                 if (partinfo &&
1143                     partinfo->type == MIMETYPE_APPLICATION &&
1144                     !g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))
1145                         menu_set_sensitive(mimeview->popupfactory,
1146                                            "/Open", FALSE);
1147                 else
1148                         menu_set_sensitive(mimeview->popupfactory,
1149                                            "/Open", TRUE);
1150
1151                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1152                                   "pop_partinfo", partinfo);
1153
1154                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
1155                                NULL, NULL, NULL, NULL,
1156                                event->button, event->time);
1157                 return TRUE;
1158         }
1159
1160         lastinfo = partinfo;
1161         lasttime = event->time;
1162         return FALSE;
1163 }
1164
1165
1166 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
1167 {
1168         mimeview_key_pressed(mimeview->ctree, event, mimeview);
1169 }
1170
1171 #define BREAK_ON_MODIFIER_KEY() \
1172         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1173
1174 #define KEY_PRESS_EVENT_STOP() \
1175         g_signal_stop_emission_by_name(G_OBJECT(ctree), \
1176                                        "key_press_event");
1177
1178 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1179                                  MimeView *mimeview)
1180 {
1181         SummaryView *summaryview;
1182         GtkCTree *ctree = GTK_CTREE(widget);
1183         GtkCTreeNode *node;
1184
1185         if (!event) return FALSE;
1186         if (!mimeview->opened) return FALSE;
1187
1188         summaryview = mimeview->messageview->mainwin->summaryview;
1189
1190         if (summaryview && quicksearch_has_focus(summaryview->quicksearch))
1191                 return FALSE;
1192
1193         switch (event->keyval) {
1194         case GDK_space:
1195                 if (textview_scroll_page(mimeview->textview, FALSE))
1196                         return TRUE;
1197
1198                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
1199                 if (node) {
1200                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
1201                         gtk_sctree_select(GTK_SCTREE(ctree), node);
1202                         return TRUE;
1203                 }
1204                 break;
1205         case GDK_BackSpace:
1206                 textview_scroll_page(mimeview->textview, TRUE);
1207                 return TRUE;
1208         case GDK_Return:
1209                 textview_scroll_one_line(mimeview->textview,
1210                                          (event->state & GDK_MOD1_MASK) != 0);
1211                 return TRUE;
1212         case GDK_n:
1213         case GDK_N:
1214                 BREAK_ON_MODIFIER_KEY();
1215                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
1216                 KEY_PRESS_EVENT_STOP();
1217                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1218                                         GTK_SCROLL_STEP_FORWARD, 0.0);
1219                 return TRUE;
1220         case GDK_p:
1221         case GDK_P:
1222                 BREAK_ON_MODIFIER_KEY();
1223                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
1224                 KEY_PRESS_EVENT_STOP();
1225                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1226                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
1227                 return TRUE;
1228         case GDK_y:
1229                 BREAK_ON_MODIFIER_KEY();
1230                 KEY_PRESS_EVENT_STOP();
1231                 mimeview_save_as(mimeview);
1232                 return TRUE;
1233         case GDK_t:
1234                 BREAK_ON_MODIFIER_KEY();
1235                 KEY_PRESS_EVENT_STOP();
1236                 mimeview_display_as_text(mimeview);
1237                 return TRUE;
1238         case GDK_l:
1239                 BREAK_ON_MODIFIER_KEY();
1240                 KEY_PRESS_EVENT_STOP();
1241                 mimeview_launch(mimeview);
1242                 return TRUE;
1243         case GDK_o:
1244                 BREAK_ON_MODIFIER_KEY();
1245                 KEY_PRESS_EVENT_STOP();
1246                 mimeview_open_with(mimeview);
1247                 return TRUE;
1248         case GDK_c:
1249                 BREAK_ON_MODIFIER_KEY();
1250                 KEY_PRESS_EVENT_STOP();
1251                 mimeview_check_signature(mimeview);
1252                 return TRUE;
1253         default:
1254                 break;
1255         }
1256
1257         if (!mimeview->messageview->mainwin) return FALSE;
1258
1259         summary_pass_key_press_event(summaryview, event);
1260         return TRUE;
1261 }
1262
1263 static void mimeview_drag_data_get(GtkWidget        *widget,
1264                                    GdkDragContext   *drag_context,
1265                                    GtkSelectionData *selection_data,
1266                                    guint             info,
1267                                    guint             time,
1268                                    MimeView         *mimeview)
1269 {
1270         gchar *filename = NULL, *uriname, *tmp;
1271         MimeInfo *partinfo;
1272
1273         if (!mimeview->opened) return;
1274         if (!mimeview->file) return;
1275
1276         partinfo = mimeview_get_selected_part(mimeview);
1277         if (!partinfo) return;
1278
1279         if (strlen(get_part_name(partinfo)) > 0) {
1280                 filename = g_path_get_basename(get_part_name(partinfo));
1281                 if (*filename == '\0') return;
1282         } else if (partinfo->type == MIMETYPE_MESSAGE
1283                    && !g_ascii_strcasecmp(partinfo->subtype, "rfc822")) {
1284                 gchar *name = NULL;
1285                 GPtrArray *headers = NULL;
1286                 FILE *fp;
1287
1288                 fp = g_fopen(partinfo->data.filename, "rb");
1289                 fseek(fp, partinfo->offset, SEEK_SET);
1290                 headers = procheader_get_header_array_asis(fp);
1291                 if (headers) {
1292                         gint i;
1293                         for (i = 0; i < headers->len; i++) {
1294                                 Header *header = g_ptr_array_index(headers, i);
1295                                 if (procheader_headername_equal(header->name, "Subject")) {
1296                                         unfold_line(header->body);
1297                                         name = g_strconcat(header->body, ".txt", NULL);
1298                                         subst_for_filename(name);
1299                                 }
1300                         }
1301                         procheader_header_array_destroy(headers);
1302                 }
1303                 fclose(fp);
1304                 if (name)
1305                         filename = g_path_get_basename(name);
1306                 g_free(name);
1307         }
1308         if (filename == NULL)
1309                 filename = g_path_get_basename("Unnamed part");
1310
1311
1312         tmp = g_filename_from_utf8(filename, -1, NULL, NULL, NULL);
1313
1314         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1315                                tmp, NULL);
1316
1317         g_free(tmp);
1318
1319         if (procmime_get_part(filename, partinfo) < 0)
1320                 alertpanel_error
1321                         (_("Can't save the part of multipart message."));
1322         uriname = g_strconcat("file://", filename, "\r\n", NULL);
1323
1324         gtk_selection_data_set(selection_data, selection_data->target, 8,
1325                                uriname, strlen(uriname));
1326
1327         g_free(uriname);
1328         g_free(filename);
1329 }
1330
1331 /**
1332  * Returns a filename (with path) for an attachment
1333  * \param partinfo The attachment to save
1334  * \param basedir The target directory
1335  * \param number Used for dummy filename if attachment is unnamed
1336  */
1337 gchar *mimeview_get_filename_for_part(MimeInfo *partinfo,
1338                                       const gchar *basedir,
1339                                       gint number)
1340 {
1341         gchar *fullname;
1342         gchar *filename;
1343
1344         filename = g_strdup(get_part_name(partinfo));
1345         if (!filename || !*filename)
1346                 filename = g_strdup_printf("noname.%d", number);
1347
1348         if (!g_utf8_validate(filename, -1, NULL)) {
1349                 gchar *tmp = conv_filename_to_utf8(filename);
1350                 g_free(filename);
1351                 filename = tmp;
1352         }
1353
1354         subst_for_filename(filename);
1355
1356         fullname = g_strconcat
1357                 (basedir, G_DIR_SEPARATOR_S, (filename[0] == G_DIR_SEPARATOR)
1358                  ? &filename[1] : filename, NULL);
1359
1360         g_free(filename);
1361         filename = conv_filename_from_utf8(fullname);
1362         g_free(fullname);
1363         return filename;
1364 }
1365
1366 /**
1367  * Write a single attachment to file
1368  * \param filename Filename with path
1369  * \param partinfo Attachment to save
1370  */
1371 static gboolean mimeview_write_part(const gchar *filename,
1372                                     MimeInfo *partinfo)
1373 {
1374         gchar *dir;
1375
1376         dir= g_path_get_dirname(filename);
1377         if (!is_dir_exist(dir))
1378                 make_dir_hier(dir);
1379         g_free(dir);
1380
1381         if (is_file_exist(filename)) {
1382                 AlertValue aval;
1383                 gchar *res;
1384                 gchar *tmp;
1385
1386                 if (!g_utf8_validate(filename, -1, NULL))
1387                         tmp = conv_filename_to_utf8(filename);
1388                 else
1389                         tmp = g_strdup(filename);
1390
1391                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1392                                       tmp);
1393                 g_free(tmp);
1394                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
1395                                   GTK_STOCK_OK, NULL);
1396                 g_free(res);
1397                 if (G_ALERTALTERNATE != aval) return FALSE;
1398         }
1399
1400         if (procmime_get_part(filename, partinfo) < 0) {
1401                 alertpanel_error
1402                         (_("Can't save the part of multipart message."));
1403                 return FALSE;
1404         }
1405
1406         return TRUE;
1407 }
1408
1409 /**
1410  * Menu callback: Save all attached files
1411  * \param mimeview Current display
1412  */
1413 static void mimeview_save_all(MimeView *mimeview)
1414 {
1415         MimeInfo *partinfo;
1416         gchar *dirname;
1417         gchar *startdir = NULL;
1418         gint number = 1;
1419
1420         if (!mimeview->opened) return;
1421         if (!mimeview->file) return;
1422         if (!mimeview->mimeinfo) return;
1423
1424         partinfo = mimeview->mimeinfo;
1425         if (prefs_common.attach_save_dir)
1426                 startdir = g_strconcat(prefs_common.attach_save_dir,
1427                                        G_DIR_SEPARATOR_S, NULL);
1428
1429         dirname = filesel_select_file_save_folder(_("Select destination folder"), startdir);
1430         if (!dirname) {
1431                 if (startdir) g_free(startdir);
1432                 return;
1433         }
1434
1435         if (!is_dir_exist (dirname)) {
1436                 alertpanel_error(_("'%s' is not a directory."),
1437                                  dirname);
1438                 if (startdir) g_free(startdir);
1439                 return;
1440         }
1441
1442         if (dirname[strlen(dirname)-1] == G_DIR_SEPARATOR)
1443                 dirname[strlen(dirname)-1] = '\0';
1444
1445         /* Skip the first part, that is sometimes DISPOSITIONTYPE_UNKNOWN */
1446         if (partinfo && partinfo->type == MIMETYPE_MESSAGE)
1447                 partinfo = procmime_mimeinfo_next(partinfo);
1448         if (partinfo && partinfo->type == MIMETYPE_MULTIPART) {
1449                 partinfo = procmime_mimeinfo_next(partinfo);
1450                 if (partinfo && partinfo->type == MIMETYPE_TEXT)
1451                         partinfo = procmime_mimeinfo_next(partinfo);
1452         }
1453
1454         while (partinfo != NULL) {
1455                 if (partinfo->type != MIMETYPE_MESSAGE &&
1456                     partinfo->type != MIMETYPE_MULTIPART &&
1457                     partinfo->disposition != DISPOSITIONTYPE_INLINE) {
1458                         gchar *filename = mimeview_get_filename_for_part
1459                                 (partinfo, dirname, number++);
1460
1461                         mimeview_write_part(filename, partinfo);
1462                         g_free(filename);
1463                 }
1464                 partinfo = procmime_mimeinfo_next(partinfo);
1465         }
1466
1467         if (prefs_common.attach_save_dir)
1468                 g_free(prefs_common.attach_save_dir);
1469
1470         prefs_common.attach_save_dir = g_strdup(dirname);
1471
1472         if (startdir) g_free(startdir);
1473 }
1474
1475 /**
1476  * Menu callback: Save the selected attachment
1477  * \param mimeview Current display
1478  */
1479 static void mimeview_save_as(MimeView *mimeview)
1480 {
1481         gchar *filename;
1482         gchar *filepath = NULL;
1483         gchar *filedir = NULL;
1484         MimeInfo *partinfo;
1485         gchar *partname = NULL;
1486
1487         if (!mimeview->opened) return;
1488         if (!mimeview->file) return;
1489
1490         partinfo = mimeview_get_selected_part(mimeview);
1491         if (!partinfo) {
1492                 partinfo = (MimeInfo *) g_object_get_data
1493                          (G_OBJECT(mimeview->popupmenu),
1494                          "pop_partinfo");
1495                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1496                                   "pop_partinfo", NULL);
1497         }
1498         g_return_if_fail(partinfo != NULL);
1499
1500         if (get_part_name(partinfo) == NULL) {
1501                 return;
1502         }
1503         partname = g_strdup(get_part_name(partinfo));
1504
1505         if (!g_utf8_validate(partname, -1, NULL)) {
1506                 gchar *tmp = conv_filename_to_utf8(partname);
1507                 g_free(partname);
1508                 partname = tmp;
1509         }
1510
1511         subst_for_filename(partname);
1512
1513         if (prefs_common.attach_save_dir)
1514                 filepath = g_strconcat(prefs_common.attach_save_dir,
1515                                        G_DIR_SEPARATOR_S, partname, NULL);
1516         else
1517                 filepath = g_strdup(partname);
1518
1519         g_free(partname);
1520
1521         filename = filesel_select_file_save(_("Save as"), filepath);
1522         if (!filename) {
1523                 g_free(filepath);
1524                 return;
1525         }
1526
1527         mimeview_write_part(filename, partinfo);
1528
1529         filedir = g_path_get_dirname(filename);
1530         if (filedir && strcmp(filedir, ".")) {
1531                 if (prefs_common.attach_save_dir)
1532                         g_free(prefs_common.attach_save_dir);
1533                 prefs_common.attach_save_dir = g_strdup(filedir);
1534         }
1535
1536         g_free(filedir);
1537         g_free(filepath);
1538 }
1539
1540 static void mimeview_display_as_text(MimeView *mimeview)
1541 {
1542         MimeInfo *partinfo;
1543
1544         if (!mimeview->opened) return;
1545
1546         partinfo = mimeview_get_selected_part(mimeview);
1547         if (!partinfo)  {
1548                 partinfo = (MimeInfo *) g_object_get_data
1549                         (G_OBJECT(mimeview->popupmenu),
1550                          "pop_partinfo");
1551                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1552                                   "pop_partinfo", NULL);
1553
1554         }
1555         g_return_if_fail(partinfo != NULL);
1556         mimeview_show_message_part(mimeview, partinfo);
1557 }
1558
1559 static void mimeview_launch(MimeView *mimeview)
1560 {
1561         MimeInfo *partinfo;
1562         gchar *filename;
1563
1564         if (!mimeview->opened) return;
1565         if (!mimeview->file) return;
1566
1567         partinfo = mimeview_get_selected_part(mimeview);
1568         if (!partinfo) {
1569                 partinfo = (MimeInfo *) g_object_get_data
1570                         (G_OBJECT(mimeview->popupmenu),
1571                          "pop_partinfo");
1572                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1573                                   "pop_partinfo", NULL);
1574         }
1575         g_return_if_fail(partinfo != NULL);
1576
1577         filename = procmime_get_tmp_file_name(partinfo);
1578
1579         if (procmime_get_part(filename, partinfo) < 0)
1580                 alertpanel_error
1581                         (_("Can't save the part of multipart message."));
1582         else
1583                 mimeview_view_file(filename, partinfo, NULL, mimeview);
1584
1585         g_free(filename);
1586 }
1587
1588 static void mimeview_open_with(MimeView *mimeview)
1589 {
1590         MimeInfo *partinfo;
1591         gchar *filename;
1592         gchar *cmd;
1593         gchar *mime_command = NULL;
1594         gchar *content_type = NULL;
1595
1596         if (!mimeview) return;
1597         if (!mimeview->opened) return;
1598         if (!mimeview->file) return;
1599
1600         partinfo = mimeview_get_selected_part(mimeview);
1601         if (!partinfo) {
1602                 partinfo = (MimeInfo *) g_object_get_data
1603                         (G_OBJECT(mimeview->popupmenu),
1604                          "pop_partinfo");
1605                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1606                                   "pop_partinfo", NULL);
1607         }
1608         g_return_if_fail(partinfo != NULL);
1609
1610         filename = procmime_get_tmp_file_name(partinfo);
1611
1612         if (procmime_get_part(filename, partinfo) < 0) {
1613                 alertpanel_error
1614                         (_("Can't save the part of multipart message."));
1615                 g_free(filename);
1616                 return;
1617         }
1618
1619         if (!prefs_common.mime_open_cmd_history)
1620                 prefs_common.mime_open_cmd_history =
1621                         add_history(NULL, prefs_common.mime_open_cmd);
1622
1623         if ((partinfo->type == MIMETYPE_APPLICATION) &&
1624             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
1625                 /* guess content-type from filename */
1626                 content_type = procmime_get_mime_type(filename);
1627         }
1628         if (content_type == NULL) {
1629                 content_type = procmime_get_content_type_str(partinfo->type,
1630                         partinfo->subtype);
1631         }
1632         mime_command = mailcap_get_command_for_type(content_type);
1633         g_free(content_type);
1634         cmd = input_dialog_combo
1635                 (_("Open with"),
1636                  _("Enter the command line to open file:\n"
1637                    "('%s' will be replaced with file name)"),
1638                  mime_command ? mime_command : prefs_common.mime_open_cmd,
1639                  prefs_common.mime_open_cmd_history,
1640                  TRUE);
1641         g_free(mime_command);
1642         if (cmd) {
1643                 mimeview_view_file(filename, partinfo, cmd, mimeview);
1644                 g_free(prefs_common.mime_open_cmd);
1645                 prefs_common.mime_open_cmd = cmd;
1646                 prefs_common.mime_open_cmd_history =
1647                         add_history(prefs_common.mime_open_cmd_history, cmd);
1648         }
1649
1650         g_free(filename);
1651 }
1652
1653 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1654                                const gchar *cmdline, MimeView *mimeview)
1655 {
1656         static gchar *default_image_cmdline = DEFAULT_IMAGE_VIEWER_CMD;
1657         static gchar *default_audio_cmdline = DEFAULT_AUDIO_PLAYER_CMD;
1658         static gchar *default_html_cmdline = DEFAULT_BROWSER_CMD;
1659         static gchar *mime_cmdline = DEFAULT_MIME_CMD;
1660         gchar buf[1024];
1661         gchar m_buf[1024];
1662         const gchar *cmd;
1663         const gchar *def_cmd;
1664         const gchar *p;
1665
1666         if (cmdline) {
1667                 cmd = cmdline;
1668                 def_cmd = NULL;
1669         } else if (MIMETYPE_APPLICATION == partinfo->type &&
1670                    !g_ascii_strcasecmp(partinfo->subtype, "octet-stream")) {
1671                 mimeview_open_with(mimeview);
1672                 return;
1673         } else if (MIMETYPE_IMAGE == partinfo->type) {
1674                 cmd = prefs_common.mime_image_viewer;
1675                 def_cmd = default_image_cmdline;
1676         } else if (MIMETYPE_AUDIO == partinfo->type) {
1677                 cmd = prefs_common.mime_audio_player;
1678                 def_cmd = default_audio_cmdline;
1679         } else if (MIMETYPE_TEXT == partinfo->type && !strcmp(partinfo->subtype, "html")) {
1680                 cmd = prefs_common.uri_cmd;
1681                 def_cmd = default_html_cmdline;
1682         } else {
1683                 gchar *content_type;
1684
1685                 content_type = procmime_get_content_type_str(partinfo->type, partinfo->subtype);
1686                 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
1687                            content_type, "%s");
1688                 g_free(content_type);
1689                 cmd = m_buf;
1690                 def_cmd = NULL;
1691         }
1692
1693         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
1694             !strchr(p + 2, '%'))
1695                 g_snprintf(buf, sizeof(buf), cmd, filename);
1696         else {
1697                 if (cmd)
1698                         g_warning("MIME viewer command line is invalid: '%s'", cmd);
1699                 if (def_cmd)
1700                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
1701                 else {
1702                         mimeview_open_with(mimeview);
1703                         return;
1704                 }
1705         }
1706
1707         if (execute_command_line(buf, TRUE) != 0)
1708                 mimeview_open_with(mimeview);
1709 }
1710
1711 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1712 {
1713         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1714 }
1715
1716 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1717 {
1718         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1719 }
1720
1721 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1722 {
1723         GSList *mimeview_list, *viewer_list;
1724
1725         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1726                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1727
1728                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1729                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1730                         mimeview->mimeviewer = NULL;
1731                 }
1732
1733                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1734                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1735
1736                         mimeviewer->destroy_viewer(mimeviewer);
1737                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1738                 }
1739         }
1740
1741         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1742 }
1743
1744 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1745 {
1746         gint      num;
1747         MimeInfo *partinfo;
1748
1749         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1750         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1751
1752         icon_selected(mimeview, num, partinfo);
1753         gtk_widget_grab_focus(button);
1754         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1755                 toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1756                 if (event->button == 2 || event->button == 3)
1757                         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button),
1758                                                      TRUE);
1759         }
1760
1761         part_button_pressed(mimeview, event, partinfo);
1762
1763         return FALSE;
1764 }
1765
1766 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
1767 {
1768         GtkCTreeNode *node;
1769         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1770         if (node)
1771                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1772 }
1773
1774 #undef  KEY_PRESS_EVENT_STOP
1775 #define KEY_PRESS_EVENT_STOP() \
1776         g_signal_stop_emission_by_name(G_OBJECT(button), \
1777                                        "key_press_event");
1778
1779 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
1780                              MimeView *mimeview)
1781 {
1782         gint          num;
1783         MimeInfo     *partinfo;
1784         SummaryView  *summaryview;
1785         TextView     *textview;
1786
1787         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1788         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1789
1790         if (!event) return FALSE;
1791
1792         textview = mimeview->textview;
1793
1794         switch (event->keyval) {
1795         case GDK_space:
1796                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1797                         /* stop the button being untoggled */
1798                         KEY_PRESS_EVENT_STOP();
1799                         if (textview_scroll_page(textview, FALSE))
1800                                 return TRUE;
1801
1802                         if (icon_list_select_by_number(mimeview, num + 1))
1803                                 return TRUE;
1804                 } else {
1805                         icon_selected(mimeview, num, partinfo);
1806                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1807                         return TRUE;
1808                 }
1809
1810                 break;
1811         case GDK_BackSpace:
1812                 textview_scroll_page(textview, TRUE);
1813                 return TRUE;
1814         case GDK_Return:
1815                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1816                         KEY_PRESS_EVENT_STOP();
1817                         textview_scroll_one_line(textview,
1818                                                  (event->state & GDK_MOD1_MASK) != 0);
1819                         return TRUE;
1820                 } else {
1821                         icon_selected(mimeview, num, partinfo);
1822                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1823                         return TRUE;
1824                 }
1825
1826         case GDK_n:
1827         case GDK_N:
1828                 BREAK_ON_MODIFIER_KEY();
1829                 if (icon_list_select_by_number(mimeview, num + 1)) {
1830                         KEY_PRESS_EVENT_STOP();
1831                         return TRUE;
1832                 }
1833                 break;
1834
1835         case GDK_p:
1836         case GDK_P:
1837                 BREAK_ON_MODIFIER_KEY();
1838                 if (icon_list_select_by_number(mimeview, num - 1)) {
1839                         KEY_PRESS_EVENT_STOP();
1840                         return TRUE;
1841                 }
1842                 break;
1843
1844         case GDK_y:
1845                 BREAK_ON_MODIFIER_KEY();
1846                 KEY_PRESS_EVENT_STOP();
1847                 mimeview_save_as(mimeview);
1848                 return TRUE;
1849         case GDK_t:
1850                 BREAK_ON_MODIFIER_KEY();
1851                 KEY_PRESS_EVENT_STOP();
1852                 mimeview_display_as_text(mimeview);
1853                 return TRUE;
1854         case GDK_l:
1855                 BREAK_ON_MODIFIER_KEY();
1856                 KEY_PRESS_EVENT_STOP();
1857                 mimeview_launch(mimeview);
1858                 return TRUE;
1859         case GDK_o:
1860                 BREAK_ON_MODIFIER_KEY();
1861                 KEY_PRESS_EVENT_STOP();
1862                 mimeview_open_with(mimeview);
1863                 return TRUE;
1864         case GDK_c:
1865                 BREAK_ON_MODIFIER_KEY();
1866                 KEY_PRESS_EVENT_STOP();
1867                 mimeview_check_signature(mimeview);
1868                 return TRUE;
1869         default:
1870                 break;
1871         }
1872
1873         if (!mimeview->messageview->mainwin) return FALSE;
1874         summaryview = mimeview->messageview->mainwin->summaryview;
1875         summary_pass_key_press_event(summaryview, event);
1876         return TRUE;
1877 }
1878
1879 static void toggle_icon(GtkToggleButton *button, MimeView *mimeview)
1880 {
1881         GList *child;
1882
1883         child = gtk_container_get_children(GTK_CONTAINER(mimeview->icon_vbox));
1884         for (; child != NULL; child = g_list_next(child)) {
1885                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1886                     GTK_TOGGLE_BUTTON(child->data) != button &&
1887                     gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(child->data)))
1888                         gtk_toggle_button_set_active
1889                                 (GTK_TOGGLE_BUTTON(child->data),
1890                                  FALSE);
1891         }
1892 }
1893
1894 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
1895 {
1896         GtkWidget *pixmap = NULL;
1897         GtkWidget *vbox;
1898         GtkWidget *button;
1899         gchar *tip;
1900         gchar *tiptmp;
1901         const gchar *desc = NULL;
1902         gchar *sigshort = NULL;
1903         gchar *content_type;
1904         StockPixmap stockp;
1905         MimeInfo *partinfo;
1906         MimeInfo *siginfo = NULL;
1907         MimeInfo *encrypted = NULL;
1908
1909         vbox = mimeview->icon_vbox;
1910         mimeview->icon_count++;
1911         button = gtk_toggle_button_new();
1912         gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
1913         g_object_set_data(G_OBJECT(button), "icon_number",
1914                           GINT_TO_POINTER(mimeview->icon_count));
1915         g_object_set_data(G_OBJECT(button), "partinfo",
1916                           mimeinfo);
1917
1918         switch (mimeinfo->type) {
1919
1920         case MIMETYPE_TEXT:
1921                 if (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
1922                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
1923                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched"))
1924                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
1925                 else
1926                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
1927                 break;
1928         case MIMETYPE_MESSAGE:
1929                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
1930                 break;
1931         case MIMETYPE_APPLICATION:
1932                 stockp = STOCK_PIXMAP_MIME_APPLICATION;
1933                 break;
1934         case MIMETYPE_IMAGE:
1935                 stockp = STOCK_PIXMAP_MIME_IMAGE;
1936                 break;
1937         case MIMETYPE_AUDIO:
1938                 stockp = STOCK_PIXMAP_MIME_AUDIO;
1939                 break;
1940         default:
1941                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
1942                 break;
1943         }
1944
1945         partinfo = mimeinfo;
1946         while (partinfo != NULL) {
1947                 if (privacy_mimeinfo_is_signed(partinfo)) {
1948                         siginfo = partinfo;
1949                         break;
1950                 }
1951                 if (privacy_mimeinfo_is_encrypted(partinfo)) {
1952                         encrypted = partinfo;
1953                         break;
1954                 }
1955                 partinfo = procmime_mimeinfo_parent(partinfo);
1956         }
1957
1958         if (siginfo != NULL) {
1959                 switch (privacy_mimeinfo_get_sig_status(siginfo)) {
1960                 case SIGNATURE_UNCHECKED:
1961                 case SIGNATURE_CHECK_FAILED:
1962                 case SIGNATURE_CHECK_TIMEOUT:
1963                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1964                             STOCK_PIXMAP_PRIVACY_EMBLEM_SIGNED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1965                         break;
1966                 case SIGNATURE_OK:
1967                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1968                             STOCK_PIXMAP_PRIVACY_EMBLEM_PASSED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1969                         break;
1970                 case SIGNATURE_WARN:
1971                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1972                             STOCK_PIXMAP_PRIVACY_EMBLEM_WARN, OVERLAY_BOTTOM_RIGHT, 6, 3);
1973                         break;
1974                 case SIGNATURE_INVALID:
1975                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1976                             STOCK_PIXMAP_PRIVACY_EMBLEM_FAILED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1977                         break;
1978                 }
1979                 sigshort = privacy_mimeinfo_sig_info_short(siginfo);
1980         } else if (encrypted != NULL) {
1981                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1982                             STOCK_PIXMAP_PRIVACY_EMBLEM_ENCRYPTED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1983         } else {
1984                 pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp, 0,
1985                                                           OVERLAY_NONE, 6, 3);
1986         }
1987         gtk_container_add(GTK_CONTAINER(button), pixmap);
1988
1989         if (!desc) {
1990                 if (prefs_common.attach_desc)
1991                         desc = get_part_description(mimeinfo);
1992                 else
1993                         desc = get_part_name(mimeinfo);
1994         }
1995
1996         content_type = procmime_get_content_type_str(mimeinfo->type,
1997                                                      mimeinfo->subtype);
1998
1999         tip = g_strjoin("\n", content_type,
2000                         to_human_readable(mimeinfo->length), NULL);
2001         g_free(content_type);
2002         if (desc && *desc) {
2003                 gchar *tmp = NULL;
2004                 if (!g_utf8_validate(desc, -1, NULL)) {
2005                         tmp = conv_filename_to_utf8(desc);
2006                 } else {
2007                         tmp = g_strdup(desc);
2008                 }
2009                 tiptmp = g_strjoin("\n", tmp, tip, NULL);
2010                 g_free(tip);
2011                 tip = tiptmp;
2012                 g_free(tmp);
2013         }
2014         if (sigshort && *sigshort) {
2015                 tiptmp = g_strjoin("\n", tip, sigshort, NULL);
2016                 g_free(tip);
2017                 tip = tiptmp;
2018         }
2019         g_free(sigshort);
2020
2021         gtk_tooltips_set_tip(mimeview->tooltips, button, tip, NULL);
2022         g_free(tip);
2023         gtk_widget_show_all(button);
2024         gtk_drag_source_set(button, GDK_BUTTON1_MASK|GDK_BUTTON3_MASK,
2025                             mimeview_mime_types, 1, GDK_ACTION_COPY);
2026         g_signal_connect(G_OBJECT(button), "button_release_event",
2027                          G_CALLBACK(icon_clicked_cb), mimeview);
2028         g_signal_connect(G_OBJECT(button), "key_press_event",
2029                          G_CALLBACK(icon_key_pressed), mimeview);
2030         g_signal_connect(G_OBJECT(button), "drag_data_get",
2031                          G_CALLBACK(mimeview_drag_data_get), mimeview);
2032         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
2033
2034 }
2035
2036 static void icon_list_clear (MimeView *mimeview)
2037 {
2038         GList     *child;
2039         GtkAdjustment *adj;
2040
2041         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2042         for (; child != NULL; child = g_list_next(child)) {
2043                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
2044                                        GTK_WIDGET(child->data));
2045         }
2046         mimeview->icon_count = 0;
2047         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2048         gtk_adjustment_set_value(adj, adj->lower);
2049 }
2050
2051 static void icon_list_toggle_by_mime_info(MimeView      *mimeview,
2052                                           MimeInfo      *mimeinfo)
2053 {
2054         GList *child;
2055
2056         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2057         for (; child != NULL; child = g_list_next(child)) {
2058                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2059                     g_object_get_data(G_OBJECT(child->data),
2060                                       "partinfo") == (gpointer)mimeinfo) {
2061                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2062                         gtk_toggle_button_set_active
2063                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2064                 }
2065         }
2066 }
2067
2068 /*!
2069  *\brief        Used to 'click' the next or previous icon.
2070  *
2071  *\return       true if the icon 'number' exists and was selected.
2072  */
2073 static gboolean icon_list_select_by_number(MimeView     *mimeview,
2074                                            gint          number)
2075 {
2076         GList *child;
2077
2078         if (number == 0) return FALSE;
2079         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2080         for (; child != NULL; child = g_list_next(child)) {
2081                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2082                     GPOINTER_TO_INT(g_object_get_data(G_OBJECT(child->data),
2083                                         "icon_number")) == number) {
2084                         icon_selected(mimeview, number,
2085                                       (MimeInfo*)g_object_get_data(G_OBJECT(child->data),
2086                                                                    "partinfo"));
2087                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2088                         gtk_toggle_button_set_active
2089                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2090                         gtk_widget_grab_focus(GTK_WIDGET(child->data));
2091
2092                         return TRUE;
2093                 }
2094         }
2095         return FALSE;
2096 }
2097
2098 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
2099                                          GtkAllocation *size, MimeView *mimeview)
2100 {
2101         GtkAllocation *mainbox_size;
2102         GtkAllocation *vbox_size;
2103         GtkAllocation *layout_size;
2104         GtkAdjustment *adj;
2105
2106         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2107
2108         mainbox_size = &mimeview->icon_mainbox->allocation;
2109         vbox_size = &mimeview->icon_vbox->allocation;
2110         layout_size = &mimeview->icon_scroll->allocation;
2111
2112         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
2113                             GTK_LAYOUT(mimeview->icon_scroll)->width,
2114                             MAX(vbox_size->height, layout_size->height));
2115         adj->step_increment = 5;
2116 }
2117
2118 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
2119 {
2120         GtkRequisition size;
2121
2122         g_return_if_fail(mimeinfo != NULL);
2123
2124         while (mimeinfo != NULL) {
2125                 if (mimeinfo->type != MIMETYPE_MULTIPART)
2126                         icon_list_append_icon(mimeview, mimeinfo);
2127                 if (mimeinfo->node->children != NULL)
2128                         icon_list_create(mimeview,
2129                                 (MimeInfo *) mimeinfo->node->children->data);
2130                 mimeinfo = mimeinfo->node->next != NULL
2131                          ? (MimeInfo *) mimeinfo->node->next->data
2132                          : NULL;
2133         }
2134         gtk_widget_size_request(mimeview->icon_vbox, &size);
2135         if (size.width > mimeview->icon_mainbox->requisition.width) {
2136                 gtk_widget_set_size_request(mimeview->icon_mainbox,
2137                                             size.width, -1);
2138         }
2139
2140 }
2141
2142 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
2143 {
2144         gtk_widget_ref(button);
2145
2146         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
2147                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
2148                                         GTK_SHADOW_NONE);
2149                 gtk_widget_hide(mimeview->icon_mainbox);
2150                 gtk_widget_show(mimeview->ctree_mainbox);
2151                 gtk_paned_set_position(GTK_PANED(mimeview->paned), mimeview->oldsize);
2152
2153                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
2154                                         button);
2155                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
2156                                    button, FALSE, FALSE, 0);
2157                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 6);
2158         } else {
2159                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
2160                               GTK_SHADOW_NONE);
2161                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.height;
2162                 gtk_widget_hide(mimeview->ctree_mainbox);
2163                 gtk_widget_show(mimeview->icon_mainbox);
2164                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
2165
2166                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
2167                                         button);
2168                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
2169                                    button, FALSE, FALSE, 0);
2170                 gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
2171                 if (mimeview->opened)
2172                         icon_list_toggle_by_mime_info
2173                                 (mimeview, gtk_ctree_node_get_row_data(GTK_CTREE(mimeview->ctree),
2174                                                                        mimeview->opened));
2175
2176                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 0);
2177         }
2178         gtk_widget_grab_focus(button);
2179         gtk_widget_unref(button);
2180
2181 }
2182
2183 void mimeview_update (MimeView *mimeview) {
2184         if (mimeview && mimeview->mimeinfo) {
2185                 icon_list_clear(mimeview);
2186                 icon_list_create(mimeview, mimeview->mimeinfo);
2187         }
2188 }