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 #include "gtk/logwindow.h"
  67
  68
  69 typedef enum
  70 {
  71         COL_MIMETYPE = 0,
  72         COL_SIZE     = 1,
  73         COL_NAME     = 2
  74 } MimeViewColumnPos;
  75
  76 #define N_MIMEVIEW_COLS 3
  77
  78 static void mimeview_set_multipart_tree         (MimeView       *mimeview,
  79                                                  MimeInfo       *mimeinfo,
  80                                                  GtkCTreeNode   *parent);
  81 static GtkCTreeNode *mimeview_append_part       (MimeView       *mimeview,
  82                                                  MimeInfo       *partinfo,
  83                                                  GtkCTreeNode   *parent);
  84 static void mimeview_show_message_part          (MimeView       *mimeview,
  85                                                  MimeInfo       *partinfo);
  86 static void mimeview_change_view_type           (MimeView       *mimeview,
  87                                                  MimeViewType    type);
  88 gchar *mimeview_get_filename_for_part           (MimeInfo       *partinfo,
  89                                                  const gchar    *basedir,
  90                                                  gint            number);
  91 static gboolean mimeview_write_part             (const gchar    *filename,
  92                                                  MimeInfo       *partinfo);
  93
  94 static void mimeview_selected           (GtkCTree       *ctree,
  95                                          GtkCTreeNode   *node,
  96                                          gint            column,
  97                                          MimeView       *mimeview);
  98 static void mimeview_start_drag         (GtkWidget      *widget,
  99                                          gint            button,
 100                                          GdkEvent       *event,
 101                                          MimeView       *mimeview);
 102 static gint mimeview_button_pressed     (GtkWidget      *widget,
 103                                          GdkEventButton *event,
 104                                          MimeView       *mimeview);
 105 static gint mimeview_key_pressed        (GtkWidget      *widget,
 106                                          GdkEventKey    *event,
 107                                          MimeView       *mimeview);
 108
 109 static void mimeview_drag_data_get      (GtkWidget        *widget,
 110                                          GdkDragContext   *drag_context,
 111                                          GtkSelectionData *selection_data,
 112                                          guint             info,
 113                                          guint             time,
 114                                          MimeView         *mimeview);
 115
 116 static void mimeview_display_as_text    (MimeView       *mimeview);
 117 static void mimeview_save_as            (MimeView       *mimeview);
 118 static void mimeview_save_all           (MimeView       *mimeview);
 119 static void mimeview_launch             (MimeView       *mimeview);
 120 static void mimeview_open_with          (MimeView       *mimeview);
 121 static void mimeview_open_part_with     (MimeView       *mimeview,
 122                                          MimeInfo       *partinfo);
 123 static void mimeview_view_file          (const gchar    *filename,
 124                                          MimeInfo       *partinfo,
 125                                          const gchar    *cmdline,
 126                                          MimeView       *mimeview);
 127 static gboolean icon_clicked_cb         (GtkWidget      *button,
 128                                          GdkEventButton *event,
 129                                          MimeView       *mimeview);
 130 static void icon_selected               (MimeView       *mimeview,
 131                                          gint            num,
 132                                          MimeInfo       *partinfo);
 133 static gint icon_key_pressed            (GtkWidget      *button,
 134                                          GdkEventKey    *event,
 135                                          MimeView       *mimeview);
 136 static void toggle_icon                 (GtkToggleButton *button,
 137                                          MimeView       *mimeview);
 138 static void icon_list_append_icon       (MimeView       *mimeview,
 139                                          MimeInfo       *mimeinfo);
 140 static void icon_list_create            (MimeView       *mimeview,
 141                                          MimeInfo       *mimeinfo);
 142 static void icon_list_clear             (MimeView       *mimeview);
 143 static void icon_list_toggle_by_mime_info (MimeView     *mimeview,
 144                                            MimeInfo     *mimeinfo);
 145 static gboolean icon_list_select_by_number(MimeView     *mimeview,
 146                                            gint          number);
 147 static void mime_toggle_button_cb       (GtkWidget      *button,
 148                                          MimeView       *mimeview);
 149 static gboolean part_button_pressed     (MimeView       *mimeview,
 150                                          GdkEventButton *event,
 151                                          MimeInfo       *partinfo);
 152 static void icon_scroll_size_allocate_cb(GtkWidget      *widget,
 153                                          GtkAllocation  *layout_size,
 154                                          MimeView       *mimeview);
 155
 156 static GtkItemFactoryEntry mimeview_popup_entries[] =
 157 {
 158         {N_("/_Open"),            NULL, mimeview_launch,          0, NULL},
 159         {N_("/Open _with..."),    NULL, mimeview_open_with,       0, NULL},
 160         {N_("/_Display as text"), NULL, mimeview_display_as_text, 0, NULL},
 161         {N_("/_Save as..."),      NULL, mimeview_save_as,         0, NULL},
 162         {N_("/Save _all..."),     NULL, mimeview_save_all,        0, NULL},
 163 };
 164
 165 static GtkTargetEntry mimeview_mime_types[] =
 166 {
 167         {"text/uri-list", 0, 0}
 168 };
 169
 170 GSList *mimeviewer_factories;
 171 GSList *mimeviews;
 172
 173 MimeView *mimeview_create(MainWindow *mainwin)
 174 {
 175         MimeView *mimeview;
 176
 177         GtkWidget *paned;
 178         GtkWidget *scrolledwin;
 179         GtkWidget *ctree;
 180         GtkWidget *mime_notebook;
 181         GtkWidget *popupmenu;
 182         GtkWidget *ctree_mainbox;
 183         GtkWidget *vbox;
 184         GtkWidget *mime_toggle;
 185         GtkWidget *icon_mainbox;
 186         GtkWidget *icon_scroll;
 187         GtkWidget *icon_vbox;
 188         GtkWidget *arrow;
 189         GtkWidget *scrollbutton;
 190         GtkWidget *hbox;
 191         GtkTooltips *tooltips;
 192         GtkItemFactory *popupfactory;
 193         NoticeView *siginfoview;
 194         gchar *titles[N_MIMEVIEW_COLS];
 195         gint n_entries;
 196         gint i;
 197
 198         debug_print("Creating MIME view...\n");
 199         mimeview = g_new0(MimeView, 1);
 200
 201         titles[COL_MIMETYPE] = _("MIME Type");
 202         titles[COL_SIZE]     = _("Size");
 203         titles[COL_NAME]     = _("Name");
 204
 205         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 206         gtk_widget_show(scrolledwin);
 207         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 208                                        GTK_POLICY_AUTOMATIC,
 209                                        GTK_POLICY_AUTOMATIC);
 210
 211         ctree = gtk_sctree_new_with_titles(N_MIMEVIEW_COLS, 0, titles);
 212         gtk_widget_show(ctree);
 213         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 214         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
 215         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_SIZE,
 216                                            GTK_JUSTIFY_RIGHT);
 217         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_MIMETYPE, 240);
 218         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_SIZE, 90);
 219         for (i = 0; i < N_MIMEVIEW_COLS; i++)
 220                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 221                                        GTK_CAN_FOCUS);
 222         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 223
 224         g_signal_connect(G_OBJECT(ctree), "tree_select_row",
 225                          G_CALLBACK(mimeview_selected), mimeview);
 226         g_signal_connect(G_OBJECT(ctree), "button_release_event",
 227                          G_CALLBACK(mimeview_button_pressed), mimeview);
 228         g_signal_connect(G_OBJECT(ctree), "key_press_event",
 229                          G_CALLBACK(mimeview_key_pressed), mimeview);
 230         g_signal_connect(G_OBJECT (ctree),"start_drag",
 231                          G_CALLBACK (mimeview_start_drag), mimeview);
 232         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
 233                          G_CALLBACK(mimeview_drag_data_get), mimeview);
 234
 235         mime_notebook = gtk_notebook_new();
 236         gtk_widget_show(mime_notebook);
 237         GTK_WIDGET_UNSET_FLAGS(mime_notebook, GTK_CAN_FOCUS);
 238         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(mime_notebook), FALSE);
 239         gtk_notebook_set_show_border(GTK_NOTEBOOK(mime_notebook), FALSE);
 240
 241         icon_vbox = gtk_vbox_new(FALSE, 2);
 242         gtk_widget_show(icon_vbox);
 243         icon_scroll = gtk_layout_new(NULL, NULL);
 244         gtk_widget_show(icon_scroll);
 245         gtk_layout_put(GTK_LAYOUT(icon_scroll), icon_vbox, 0, 0);
 246         scrollbutton = gtk_vscrollbutton_new(gtk_layout_get_vadjustment(GTK_LAYOUT(icon_scroll)));
 247         gtk_widget_show(scrollbutton);
 248
 249         mime_toggle = gtk_toggle_button_new();
 250         gtk_widget_show(mime_toggle);
 251         arrow = gtk_arrow_new(GTK_ARROW_LEFT, GTK_SHADOW_NONE);
 252         gtk_widget_show(arrow);
 253         gtk_container_add(GTK_CONTAINER(mime_toggle), arrow);
 254         g_signal_connect(G_OBJECT(mime_toggle), "toggled",
 255                          G_CALLBACK(mime_toggle_button_cb), mimeview);
 256
 257         icon_mainbox = gtk_vbox_new(FALSE, 0);
 258         gtk_widget_show(icon_mainbox);
 259         gtk_box_pack_start(GTK_BOX(icon_mainbox), mime_toggle, FALSE, FALSE, 0);
 260         gtk_box_pack_start(GTK_BOX(icon_mainbox), icon_scroll, TRUE, TRUE, 3);
 261         gtk_box_pack_end(GTK_BOX(icon_mainbox), scrollbutton, FALSE, FALSE, 0);
 262         g_signal_connect(G_OBJECT(icon_mainbox), "size_allocate",
 263                          G_CALLBACK(icon_scroll_size_allocate_cb), mimeview);
 264
 265         ctree_mainbox = gtk_hbox_new(FALSE, 0);
 266         gtk_box_pack_start(GTK_BOX(ctree_mainbox), scrolledwin, TRUE, TRUE, 0);
 267
 268         n_entries = sizeof(mimeview_popup_entries) /
 269                 sizeof(mimeview_popup_entries[0]);
 270         popupmenu = menu_create_items(mimeview_popup_entries, n_entries,
 271                                       "<MimeView>", &popupfactory, mimeview);
 272         tooltips = gtk_tooltips_new();
 273         gtk_tooltips_set_delay(tooltips, 0);
 274
 275         vbox = gtk_vbox_new(FALSE, 0);
 276         gtk_widget_show(vbox);
 277         siginfoview = noticeview_create(mainwin);
 278         noticeview_hide(siginfoview);
 279         noticeview_set_icon_clickable(siginfoview, TRUE);
 280         gtk_box_pack_start(GTK_BOX(vbox), mime_notebook, TRUE, TRUE, 0);
 281         gtk_box_pack_end(GTK_BOX(vbox), GTK_WIDGET_PTR(siginfoview), FALSE, FALSE, 0);
 282
 283         paned = gtk_vpaned_new();
 284         gtk_widget_show(paned);
 285         gtk_paned_set_gutter_size(GTK_PANED(paned), 0);
 286         gtk_paned_pack1(GTK_PANED(paned), ctree_mainbox, FALSE, TRUE);
 287         gtk_paned_pack2(GTK_PANED(paned), vbox, TRUE, TRUE);
 288
 289         hbox = gtk_hbox_new(FALSE, 0);
 290         gtk_box_pack_start(GTK_BOX(hbox), paned, TRUE, TRUE, 0);
 291         gtk_box_pack_start(GTK_BOX(hbox), icon_mainbox, FALSE, FALSE, 0);
 292
 293         gtk_widget_show(hbox);
 294         gtk_widget_hide(ctree_mainbox);
 295
 296         mimeview->hbox          = hbox;
 297         mimeview->paned         = paned;
 298         mimeview->scrolledwin   = scrolledwin;
 299         mimeview->ctree         = ctree;
 300         mimeview->mime_notebook = mime_notebook;
 301         mimeview->popupmenu     = popupmenu;
 302         mimeview->popupfactory  = popupfactory;
 303         mimeview->type          = -1;
 304         mimeview->ctree_mainbox = ctree_mainbox;
 305         mimeview->icon_scroll   = icon_scroll;
 306         mimeview->icon_vbox     = icon_vbox;
 307         mimeview->icon_mainbox  = icon_mainbox;
 308         mimeview->icon_count    = 0;
 309         mimeview->mainwin       = mainwin;
 310         mimeview->tooltips      = tooltips;
 311         mimeview->oldsize       = 60;
 312         mimeview->mime_toggle   = mime_toggle;
 313         mimeview->siginfoview   = siginfoview;
 314
 315         mimeview->target_list   = gtk_target_list_new(mimeview_mime_types, 1);
 316
 317         mimeviews = g_slist_prepend(mimeviews, mimeview);
 318
 319         return mimeview;
 320 }
 321
 322 void mimeview_init(MimeView *mimeview)
 323 {
 324         textview_init(mimeview->textview);
 325
 326         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 327                 GTK_WIDGET_PTR(mimeview->textview));
 328 }
 329
 330 void mimeview_show_message(MimeView *mimeview, MimeInfo *mimeinfo,
 331                            const gchar *file)
 332 {
 333         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 334         GtkCTreeNode *node;
 335
 336         mimeview_clear(mimeview);
 337
 338         g_return_if_fail(file != NULL);
 339         g_return_if_fail(mimeinfo != NULL);
 340
 341         mimeview->mimeinfo = mimeinfo;
 342
 343         mimeview->file = g_strdup(file);
 344
 345         g_signal_handlers_block_by_func(G_OBJECT(ctree), mimeview_selected,
 346                                         mimeview);
 347
 348         mimeview_set_multipart_tree(mimeview, mimeinfo, NULL);
 349         icon_list_create(mimeview, mimeinfo);
 350
 351         g_signal_handlers_unblock_by_func(G_OBJECT(ctree),
 352                                           mimeview_selected, mimeview);
 353
 354         node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 355         if (node) {
 356                 gtk_ctree_select(ctree, node);
 357                 icon_list_toggle_by_mime_info
 358                         (mimeview, gtk_ctree_node_get_row_data(ctree, node));
 359                 gtkut_ctree_set_focus_row(ctree, node);
 360         }
 361 }
 362
 363 #ifdef USE_PTHREAD
 364 static void mimeview_check_sig_cancel_now(MimeView *mimeview);
 365 #endif
 366
 367 static void mimeview_free_mimeinfo(MimeView *mimeview)
 368 {
 369         gboolean defer = FALSE;
 370 #ifdef USE_PTHREAD
 371         defer = (mimeview->check_data != NULL);
 372         if (defer)
 373                 mimeview->check_data->free_after_use = TRUE;
 374 #endif
 375         if (mimeview->mimeinfo != NULL && !defer) {
 376                 procmime_mimeinfo_free_all(mimeview->mimeinfo);
 377                 mimeview->mimeinfo = NULL;
 378         } else if (defer) {
 379 #ifdef USE_PTHREAD
 380                 debug_print("deferring free(mimeinfo) and cancelling check\n");
 381                 mimeview_check_sig_cancel_now(mimeview);
 382 #endif
 383         }
 384 }
 385
 386 void mimeview_destroy(MimeView *mimeview)
 387 {
 388         GSList *cur;
 389
 390         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 391                 MimeViewer *viewer = (MimeViewer *) cur->data;
 392                 viewer->destroy_viewer(viewer);
 393         }
 394         g_slist_free(mimeview->viewers);
 395         gtk_target_list_unref(mimeview->target_list);
 396
 397         mimeview_free_mimeinfo(mimeview);
 398 #ifdef USE_PTHREAD
 399         if (mimeview->check_data) {
 400                 mimeview->check_data->destroy_mimeview = TRUE;
 401                 debug_print("deferring destroy\n");
 402         } else
 403 #endif
 404         {
 405                 g_free(mimeview->file);
 406                 g_free(mimeview);
 407                 mimeviews = g_slist_remove(mimeviews, mimeview);
 408         }
 409
 410 }
 411
 412 MimeInfo *mimeview_get_selected_part(MimeView *mimeview)
 413 {
 414         return gtk_ctree_node_get_row_data
 415                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
 416 }
 417
 418 static void mimeview_set_multipart_tree(MimeView *mimeview,
 419                                         MimeInfo *mimeinfo,
 420                                         GtkCTreeNode *parent)
 421 {
 422         GtkCTreeNode *node;
 423
 424         g_return_if_fail(mimeinfo != NULL);
 425
 426         while (mimeinfo != NULL) {
 427                 node = mimeview_append_part(mimeview, mimeinfo, parent);
 428
 429                 if (mimeinfo->node->children)
 430                         mimeview_set_multipart_tree(mimeview, (MimeInfo *) mimeinfo->node->children->data, node);
 431                 mimeinfo = mimeinfo->node->next != NULL ? (MimeInfo *) mimeinfo->node->next->data : NULL;
 432         }
 433 }
 434
 435 static const gchar *get_real_part_name(MimeInfo *partinfo)
 436 {
 437         const gchar *name = NULL;
 438
 439         name = procmime_mimeinfo_get_parameter(partinfo, "filename");
 440         if (name == NULL)
 441                 name = procmime_mimeinfo_get_parameter(partinfo, "name");
 442
 443         return name;
 444 }
 445
 446 static const gchar *get_part_name(MimeInfo *partinfo)
 447 {
 448         const gchar *name;
 449
 450         name = get_real_part_name(partinfo);
 451         if (name == NULL)
 452                 name = "";
 453
 454         return name;
 455 }
 456
 457 static const gchar *get_part_description(MimeInfo *partinfo)
 458 {
 459         if (partinfo->description)
 460                 return partinfo->description;
 461         else
 462                 return get_part_name(partinfo);
 463 }
 464
 465 static GtkCTreeNode *mimeview_append_part(MimeView *mimeview,
 466                                           MimeInfo *partinfo,
 467                                           GtkCTreeNode *parent)
 468 {
 469         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 470         GtkCTreeNode *node;
 471         static gchar content_type[64];
 472         gchar *str[N_MIMEVIEW_COLS];
 473
 474         if (partinfo->type != MIMETYPE_UNKNOWN && partinfo->subtype) {
 475                 g_snprintf(content_type, 64, "%s/%s", procmime_get_media_type_str(partinfo->type), partinfo->subtype);
 476         } else {
 477                 g_snprintf(content_type, 64, "UNKNOWN");
 478         }
 479
 480         str[COL_MIMETYPE] = content_type;
 481         str[COL_SIZE] = to_human_readable(partinfo->length);
 482         if (prefs_common.attach_desc)
 483                 str[COL_NAME] = (gchar *) get_part_description(partinfo);
 484         else
 485                 str[COL_NAME] = (gchar *) get_part_name(partinfo);
 486
 487         node = gtk_sctree_insert_node(ctree, parent, NULL, str, 0,
 488                                      NULL, NULL, NULL, NULL,
 489                                      FALSE, TRUE);
 490         gtk_ctree_node_set_row_data(ctree, node, partinfo);
 491
 492         return node;
 493 }
 494
 495 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
 496 {
 497         FILE *fp;
 498         const gchar *fname;
 499
 500         if (!partinfo) return;
 501
 502         fname = mimeview->file;
 503         if (!fname) return;
 504
 505         if ((fp = g_fopen(fname, "rb")) == NULL) {
 506                 FILE_OP_ERROR(fname, "fopen");
 507                 return;
 508         }
 509
 510         if (fseek(fp, partinfo->offset, SEEK_SET) < 0) {
 511                 FILE_OP_ERROR(mimeview->file, "fseek");
 512                 fclose(fp);
 513                 return;
 514         }
 515
 516         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 517         textview_show_part(mimeview->textview, partinfo, fp);
 518
 519         fclose(fp);
 520 }
 521
 522 static MimeViewer *get_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 523 {
 524         GSList *cur;
 525         MimeViewerFactory *factory = NULL;
 526         MimeViewer *viewer = NULL;
 527
 528 /*
 529  * FNM_CASEFOLD is a GNU extension
 530  * if its not defined copy the string to the stack and
 531  * convert the copy to lower case
 532  */
 533 #ifndef FNM_CASEFOLD
 534 #define FNM_CASEFOLD 0
 535         Xstrdup_a(content_type, content_type, return NULL);
 536         g_strdown((gchar *)content_type);
 537 #endif
 538
 539         for (cur = mimeviewer_factories; cur != NULL; cur = g_slist_next(cur)) {
 540                 MimeViewerFactory *curfactory = cur->data;
 541                 gint i = 0;
 542
 543                 while (curfactory->content_types[i] != NULL) {
 544                         if(!fnmatch(curfactory->content_types[i], content_type, FNM_CASEFOLD)) {
 545                                 debug_print("%s\n", curfactory->content_types[i]);
 546                                 factory = curfactory;
 547                                 break;
 548                         }
 549                         i++;
 550                 }
 551                 if (factory != NULL)
 552                         break;
 553         }
 554         if (factory == NULL)
 555                 return NULL;
 556
 557         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 558                 MimeViewer *curviewer = cur->data;
 559
 560                 if (curviewer->factory == factory)
 561                         return curviewer;
 562         }
 563         viewer = factory->create_viewer();
 564         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 565                 GTK_WIDGET(viewer->get_widget(viewer)));
 566
 567         mimeview->viewers = g_slist_append(mimeview->viewers, viewer);
 568
 569         return viewer;
 570 }
 571
 572 static MimeViewer *get_viewer_for_mimeinfo(MimeView *mimeview, MimeInfo *partinfo)
 573 {
 574         gchar *content_type = NULL;
 575         MimeViewer *viewer = NULL;
 576
 577         if ((partinfo->type == MIMETYPE_APPLICATION) &&
 578             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
 579                 const gchar *filename;
 580
 581                 filename = procmime_mimeinfo_get_parameter(partinfo, "filename");
 582                 if (filename == NULL)
 583                         filename = procmime_mimeinfo_get_parameter(partinfo, "name");
 584                 if (filename != NULL)
 585                         content_type = procmime_get_mime_type(filename);
 586         } else {
 587                 content_type = procmime_get_content_type_str(partinfo->type, partinfo->subtype);
 588         }
 589
 590         if (content_type != NULL) {
 591                 viewer = get_viewer_for_content_type(mimeview, content_type);
 592                 g_free(content_type);
 593         }
 594
 595         return viewer;
 596 }
 597
 598 gboolean mimeview_show_part(MimeView *mimeview, MimeInfo *partinfo)
 599 {
 600         MimeViewer *viewer;
 601
 602         viewer = get_viewer_for_mimeinfo(mimeview, partinfo);
 603         if (viewer == NULL) {
 604                 if (mimeview->mimeviewer != NULL)
 605                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 606                 mimeview->mimeviewer = NULL;
 607                 return FALSE;
 608         }
 609
 610         if (mimeview->mimeviewer != NULL)
 611                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 612
 613         if (mimeview->mimeviewer != viewer) {
 614                 mimeview->mimeviewer = viewer;
 615                 mimeview_change_view_type(mimeview, MIMEVIEW_VIEWER);
 616         }
 617         viewer->mimeview = mimeview;
 618         viewer->show_mimepart(viewer, mimeview->file, partinfo);
 619
 620         return TRUE;
 621 }
 622
 623 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
 624 {
 625         TextView  *textview  = mimeview->textview;
 626
 627         if ((mimeview->type != MIMEVIEW_VIEWER) &&
 628             (mimeview->type == type)) return;
 629
 630         switch (type) {
 631         case MIMEVIEW_TEXT:
 632                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 633                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 634                         GTK_WIDGET_PTR(textview)));
 635                 break;
 636         case MIMEVIEW_VIEWER:
 637                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 638                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 639                         GTK_WIDGET(mimeview->mimeviewer->get_widget(mimeview->mimeviewer))));
 640                 break;
 641         default:
 642                 return;
 643         }
 644
 645         mimeview->type = type;
 646 }
 647
 648 void mimeview_clear(MimeView *mimeview)
 649 {
 650         GtkCList *clist = NULL;
 651
 652         if (!mimeview)
 653                 return;
 654
 655         if (g_slist_find(mimeviews, mimeview) == NULL)
 656                 return;
 657
 658         clist = GTK_CLIST(mimeview->ctree);
 659
 660         noticeview_hide(mimeview->siginfoview);
 661
 662         gtk_clist_clear(clist);
 663         textview_clear(mimeview->textview);
 664         if (mimeview->mimeviewer != NULL)
 665                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 666
 667         mimeview_free_mimeinfo(mimeview);
 668
 669         mimeview->mimeinfo = NULL;
 670
 671         mimeview->opened = NULL;
 672
 673         g_free(mimeview->file);
 674         mimeview->file = NULL;
 675
 676         icon_list_clear(mimeview);
 677         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 678 }
 679
 680 static void check_signature_cb(GtkWidget *widget, gpointer user_data);
 681 void mimeview_check_signature(MimeView *mimeview);
 682 static void display_full_info_cb(GtkWidget *widget, gpointer user_data);
 683
 684 static void update_signature_noticeview(MimeView *mimeview, MimeInfo *mimeinfo,
 685                                         gboolean special, SignatureStatus code)
 686 {
 687         gchar *text = NULL, *button_text = NULL;
 688         void  *func = NULL;
 689         StockPixmap icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 690         SignatureStatus mycode = SIGNATURE_UNCHECKED;
 691
 692         g_return_if_fail(mimeview != NULL);
 693         g_return_if_fail(mimeinfo != NULL);
 694
 695         if (special)
 696                 mycode = code;
 697         else
 698                 mycode = privacy_mimeinfo_get_sig_status(mimeinfo);
 699
 700         switch (mycode) {
 701         case SIGNATURE_UNCHECKED:
 702                 button_text = _("Check signature");
 703                 func = check_signature_cb;
 704                 icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 705                 break;
 706         case SIGNATURE_OK:
 707                 button_text = _("View full information");
 708                 func = display_full_info_cb;
 709                 icon = STOCK_PIXMAP_PRIVACY_PASSED;
 710                 break;
 711         case SIGNATURE_WARN:
 712                 button_text = _("View full information");
 713                 func = display_full_info_cb;
 714                 icon = STOCK_PIXMAP_PRIVACY_WARN;
 715                 break;
 716         case SIGNATURE_INVALID:
 717                 button_text = _("View full information");
 718                 func = display_full_info_cb;
 719                 icon = STOCK_PIXMAP_PRIVACY_FAILED;
 720                 break;
 721         case SIGNATURE_CHECK_FAILED:
 722                 button_text = _("Check again");
 723                 func = check_signature_cb;
 724                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 725         case SIGNATURE_CHECK_TIMEOUT:
 726                 button_text = _("Check again");
 727                 func = check_signature_cb;
 728                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 729         default:
 730                 break;
 731         }
 732         if (mycode == SIGNATURE_UNCHECKED) {
 733                 gchar *tmp = privacy_mimeinfo_sig_info_short(mimeinfo);
 734                 text = g_strdup_printf("%s %s",
 735                         tmp, _("Click the icon or hit 'C' to check it."));
 736                 g_free(tmp);
 737         } else if (mycode != SIGNATURE_CHECK_TIMEOUT) {
 738                 text = privacy_mimeinfo_sig_info_short(mimeinfo);
 739         } else if (mycode == SIGNATURE_CHECK_TIMEOUT) {
 740                 text = g_strdup(_("Timeout checking the signature. Click the icon or hit 'C' to try again."));
 741         }
 742
 743         noticeview_set_text(mimeview->siginfoview, text);
 744         gtk_label_set_selectable(GTK_LABEL(mimeview->siginfoview->text), TRUE);
 745
 746         g_free(text);
 747         noticeview_set_button_text(mimeview->siginfoview, NULL);
 748         noticeview_set_button_press_callback(
 749                 mimeview->siginfoview,
 750                 G_CALLBACK(func),
 751                 (gpointer) mimeview);
 752         noticeview_set_icon(mimeview->siginfoview, icon);
 753         noticeview_set_tooltip(mimeview->siginfoview, button_text);
 754 }
 755
 756 #ifdef USE_PTHREAD
 757
 758 /* reset all thread stuff, and do the cleanups we've been left to do */
 759 static void mimeview_check_data_reset(MimeView *mimeview)
 760 {
 761         if (!mimeview->check_data)
 762                 return;
 763
 764         if (mimeview->check_data->free_after_use) {
 765                 debug_print("freeing deferred mimeinfo\n");
 766                 procmime_mimeinfo_free_all(mimeview->check_data->siginfo);
 767         }
 768         if (mimeview->check_data->destroy_mimeview) {
 769                 debug_print("freeing deferred mimeview\n");
 770                 g_free(mimeview->file);
 771                 g_free(mimeview);
 772                 mimeviews = g_slist_remove(mimeviews, mimeview);
 773         }
 774
 775         g_free(mimeview->check_data);
 776         mimeview->check_data = NULL;
 777 }
 778
 779 /* GUI update once the checker thread is done or killed */
 780 static gboolean mimeview_check_sig_thread_cb(void *data)
 781 {
 782         MimeView *mimeview = (MimeView *) data;
 783         MimeInfo *mimeinfo = mimeview->siginfo;
 784
 785         debug_print("mimeview_check_sig_thread_cb\n");
 786
 787         if (mimeinfo == NULL) {
 788                 /* message changed !? */
 789                 g_warning("no more siginfo!\n");
 790                 goto end;
 791         }
 792
 793         if (!mimeview->check_data) {
 794                 g_warning("nothing to check\n");
 795                 return FALSE;
 796         }
 797
 798         if (mimeview->check_data->siginfo != mimeinfo) {
 799                 /* message changed !? */
 800                 g_warning("different siginfo!\n");
 801                 goto end;
 802         }
 803
 804         if (mimeview->check_data->destroy_mimeview ||
 805             mimeview->check_data->free_after_use) {
 806                 debug_print("not bothering, we're changing message\n");
 807                 goto end;
 808         }
 809
 810         /* update status */
 811         if (mimeview->check_data->timeout)
 812                 update_signature_noticeview(mimeview, mimeview->siginfo,
 813                         TRUE, SIGNATURE_CHECK_TIMEOUT);
 814         else
 815                 update_signature_noticeview(mimeview, mimeview->siginfo,
 816                         FALSE, 0);
 817         icon_list_clear(mimeview);
 818         icon_list_create(mimeview, mimeview->mimeinfo);
 819
 820 end:
 821         mimeview_check_data_reset(mimeview);
 822         return FALSE;
 823 }
 824
 825 /* sig checker thread */
 826 static void *mimeview_check_sig_worker_thread(void *data)
 827 {
 828         MimeView *mimeview = (MimeView *)data;
 829         MimeInfo *mimeinfo = mimeview->siginfo;
 830
 831         debug_print("checking...\n");
 832
 833         if (!mimeview->check_data)
 834                 return NULL;
 835
 836         if (mimeinfo && mimeinfo == mimeview->check_data->siginfo)
 837                 privacy_mimeinfo_check_signature(mimeinfo);
 838         else {
 839                 /* that's strange! we changed message without
 840                  * getting killed. */
 841                 g_warning("different siginfo!\n");
 842                 mimeview_check_data_reset(mimeview);
 843                 return NULL;
 844         }
 845
 846         /* use g_timeout so that GUI updates is done from the
 847          * correct thread */
 848         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 849
 850         return NULL;
 851 }
 852
 853 /* killer thread - acts when the checker didn't work fast
 854  * enough. */
 855 static void *mimeview_check_sig_cancel_thread(void *data)
 856 {
 857         MimeView *mimeview = (MimeView *)data;
 858
 859         if (!mimeview->check_data)
 860                 return NULL; /* nothing to kill ! */
 861
 862         /* wait for a few seconds... */
 863         debug_print("waiting a while\n");
 864
 865         sleep(5);
 866
 867         if (!mimeview->check_data)
 868                 return NULL; /* nothing to kill, it's done in time :) */
 869
 870         /* too late, go away checker thread */
 871         debug_print("killing checker thread\n");
 872         pthread_cancel(mimeview->check_data->th);
 873
 874         /* tell upstream it was a timeout */
 875         mimeview->check_data->timeout = TRUE;
 876         /* use g_timeout so that GUI updates is done from the
 877          * correct thread */
 878         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 879
 880         return NULL;
 881 }
 882
 883 /* get rid of the checker thread right now - used when changing the
 884  * displayed message for example. */
 885 static void mimeview_check_sig_cancel_now(MimeView *mimeview)
 886 {
 887         if (!mimeview->check_data)
 888                 return;
 889         debug_print("killing checker thread NOW\n");
 890         pthread_cancel(mimeview->check_data->th);
 891
 892         /* tell upstream it was a timeout */
 893         mimeview->check_data->timeout = TRUE;
 894         mimeview_check_sig_thread_cb(mimeview);
 895         return;
 896 }
 897
 898 /* creates a thread to check the signature, and a second one
 899  * to kill the first one after a timeout */
 900 static void mimeview_check_sig_in_thread(MimeView *mimeview)
 901 {
 902         pthread_t th, th2;
 903         pthread_attr_t detach, detach2;
 904
 905         if (mimeview->check_data) {
 906                 g_warning("already checking it");
 907                 return;
 908         }
 909
 910         mimeview->check_data = g_new0(SigCheckData, 1);
 911         mimeview->check_data->siginfo = mimeview->siginfo;
 912         debug_print("creating thread\n");
 913
 914         pthread_attr_init(&detach);
 915         pthread_attr_setdetachstate(&detach, TRUE);
 916
 917         pthread_attr_init(&detach2);
 918         pthread_attr_setdetachstate(&detach2, TRUE);
 919
 920         /* create the checker thread */
 921         if (pthread_create(&th, &detach,
 922                         mimeview_check_sig_worker_thread,
 923                         mimeview) != 0) {
 924                 /* arh. We'll do it synchronously. */
 925                 g_warning("can't create thread");
 926                 g_free(mimeview->check_data);
 927                 mimeview->check_data = NULL;
 928                 return;
 929         } else
 930                 mimeview->check_data->th = th;
 931
 932         /* create the killer thread */
 933         pthread_create(&th2, &detach2,
 934                         mimeview_check_sig_cancel_thread,
 935                         mimeview);
 936 }
 937 #endif
 938
 939 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
 940 {
 941         MimeView *mimeview = (MimeView *) user_data;
 942         MimeInfo *mimeinfo = mimeview->siginfo;
 943
 944         if (mimeinfo == NULL)
 945                 return;
 946 #ifdef USE_PTHREAD
 947         if (mimeview->check_data)
 948                 return;
 949 #endif
 950         noticeview_set_text(mimeview->siginfoview, _("Checking signature..."));
 951         GTK_EVENTS_FLUSH();
 952 #if (defined USE_PTHREAD && defined __GLIBC__ && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)))
 953         /* let's do it non-blocking */
 954         mimeview_check_sig_in_thread(mimeview);
 955         if (!mimeview->check_data) /* let's check syncronously */
 956 #endif
 957         {
 958                 debug_print("checking without thread\n");
 959                 privacy_mimeinfo_check_signature(mimeinfo);
 960                 update_signature_noticeview(mimeview, mimeview->siginfo, FALSE, 0);
 961                 icon_list_clear(mimeview);
 962                 icon_list_create(mimeview, mimeview->mimeinfo);
 963         }
 964 }
 965
 966 void mimeview_check_signature(MimeView *mimeview)
 967 {
 968         check_signature_cb(NULL, mimeview);
 969 }
 970
 971 static void redisplay_email(GtkWidget *widget, gpointer user_data)
 972 {
 973         MimeView *mimeview = (MimeView *) user_data;
 974         GtkCTreeNode *node = mimeview->opened;
 975         mimeview->opened = NULL;
 976         mimeview_selected(GTK_CTREE(mimeview->ctree), node, 0, mimeview);
 977 }
 978
 979 static void display_full_info_cb(GtkWidget *widget, gpointer user_data)
 980 {
 981         MimeView *mimeview = (MimeView *) user_data;
 982         gchar *siginfo;
 983
 984         siginfo = privacy_mimeinfo_sig_info_full(mimeview->siginfo);
 985         textview_set_text(mimeview->textview, siginfo);
 986         g_free(siginfo);
 987         noticeview_set_button_text(mimeview->siginfoview, NULL);
 988         noticeview_set_button_press_callback(
 989                 mimeview->siginfoview,
 990                 G_CALLBACK(redisplay_email),
 991                 (gpointer) mimeview);
 992         noticeview_set_tooltip(mimeview->siginfoview, _("Go back to email"));
 993 }
 994
 995 static void update_signature_info(MimeView *mimeview, MimeInfo *selected)
 996 {
 997         MimeInfo *siginfo;
 998         MimeInfo *first_text;
 999
1000         g_return_if_fail(mimeview != NULL);
1001         g_return_if_fail(selected != NULL);
1002
1003         if (selected->type == MIMETYPE_MESSAGE
1004         &&  !g_ascii_strcasecmp(selected->subtype, "rfc822")) {
1005                 /* if the first text part is signed, check that */
1006                 first_text = selected;
1007                 while (first_text && first_text->type != MIMETYPE_TEXT) {
1008                         first_text = procmime_mimeinfo_next(first_text);
1009                 }
1010                 if (first_text) {
1011                         update_signature_info(mimeview, first_text);
1012                         return;
1013                 }
1014         }
1015
1016         siginfo = selected;
1017         while (siginfo != NULL) {
1018                 if (privacy_mimeinfo_is_signed(siginfo))
1019                         break;
1020                 siginfo = procmime_mimeinfo_parent(siginfo);
1021         }
1022         mimeview->siginfo = siginfo;
1023
1024         if (siginfo == NULL) {
1025                 noticeview_hide(mimeview->siginfoview);
1026                 return;
1027         }
1028
1029         update_signature_noticeview(mimeview, siginfo, FALSE, 0);
1030         noticeview_show(mimeview->siginfoview);
1031 }
1032
1033 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
1034                               MimeView *mimeview)
1035 {
1036         MimeInfo *partinfo;
1037         if (mimeview->opened == node) return;
1038         mimeview->opened = node;
1039         mimeview->spec_part = NULL;
1040         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
1041
1042         partinfo = gtk_ctree_node_get_row_data(ctree, node);
1043         if (!partinfo) return;
1044
1045         /* ungrab the mouse event */
1046         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1047                 gtk_grab_remove(GTK_WIDGET(ctree));
1048                 if (gdk_pointer_is_grabbed())
1049                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1050         }
1051
1052         mimeview->textview->default_text = FALSE;
1053
1054         update_signature_info(mimeview, partinfo);
1055
1056         if (!mimeview_show_part(mimeview, partinfo)) {
1057                 switch (partinfo->type) {
1058                 case MIMETYPE_TEXT:
1059                 case MIMETYPE_MESSAGE:
1060                 case MIMETYPE_MULTIPART:
1061                         mimeview_show_message_part(mimeview, partinfo);
1062
1063                         break;
1064                 default:
1065                         mimeview->textview->default_text = TRUE;
1066                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1067                         textview_clear(mimeview->textview);
1068                         textview_show_mime_part(mimeview->textview, partinfo);
1069                         break;
1070                 }
1071         }
1072 }
1073
1074 static void mimeview_start_drag(GtkWidget *widget, gint button,
1075                                 GdkEvent *event, MimeView *mimeview)
1076 {
1077         GdkDragContext *context;
1078         MimeInfo *partinfo;
1079
1080         g_return_if_fail(mimeview != NULL);
1081
1082         partinfo = mimeview_get_selected_part(mimeview);
1083         if (partinfo->disposition == DISPOSITIONTYPE_INLINE) return;
1084
1085         context = gtk_drag_begin(widget, mimeview->target_list,
1086                                  GDK_ACTION_COPY, button, event);
1087         gtk_drag_set_icon_default(context);
1088 }
1089
1090 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
1091                                     MimeView *mimeview)
1092 {
1093         GtkCList *clist = GTK_CLIST(widget);
1094         gint row, column;
1095
1096         if (!event) return FALSE;
1097
1098         if (event->button == 2 || event->button == 3) {
1099                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1100                                                   &row, &column))
1101                         return FALSE;
1102                 gtk_clist_unselect_all(clist);
1103                 gtk_clist_select_row(clist, row, column);
1104                 gtkut_clist_set_focus_row(clist, row);
1105         }
1106         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
1107
1108         return FALSE;
1109 }
1110
1111 /* from gdkevents.c */
1112 #define DOUBLE_CLICK_TIME 250
1113
1114 static gboolean part_button_pressed(MimeView *mimeview, GdkEventButton *event,
1115                                     MimeInfo *partinfo)
1116 {
1117         static MimeInfo *lastinfo;
1118         static guint32 lasttime;
1119
1120         if (event->button == 2 ||
1121             (event->button == 1 && (event->time - lasttime) < DOUBLE_CLICK_TIME && lastinfo == partinfo)) {
1122                 /* call external program for image, audio or html */
1123                 mimeview_launch(mimeview);
1124                 return TRUE;
1125         } else if (event->button == 3) {
1126                 if (partinfo && (partinfo->type == MIMETYPE_MESSAGE ||
1127                                  partinfo->type == MIMETYPE_IMAGE ||
1128                                  partinfo->type == MIMETYPE_MULTIPART))
1129                         menu_set_sensitive(mimeview->popupfactory,
1130                                            "/Display as text", FALSE);
1131                 else
1132                         menu_set_sensitive(mimeview->popupfactory,
1133                                            "/Display as text", TRUE);
1134                 if (partinfo &&
1135                     partinfo->type == MIMETYPE_APPLICATION &&
1136                     !g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))
1137                         menu_set_sensitive(mimeview->popupfactory,
1138                                            "/Open", FALSE);
1139                 else
1140                         menu_set_sensitive(mimeview->popupfactory,
1141                                            "/Open", TRUE);
1142
1143                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1144                                   "pop_partinfo", partinfo);
1145
1146                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
1147                                NULL, NULL, NULL, NULL,
1148                                event->button, event->time);
1149                 return TRUE;
1150         }
1151
1152         lastinfo = partinfo;
1153         lasttime = event->time;
1154         return FALSE;
1155 }
1156
1157
1158 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
1159 {
1160         mimeview_key_pressed(mimeview->ctree, event, mimeview);
1161 }
1162
1163 #define BREAK_ON_MODIFIER_KEY() \
1164         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1165
1166 #define KEY_PRESS_EVENT_STOP() \
1167         g_signal_stop_emission_by_name(G_OBJECT(ctree), \
1168                                        "key_press_event");
1169
1170 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1171                                  MimeView *mimeview)
1172 {
1173         SummaryView *summaryview;
1174         GtkCTree *ctree = GTK_CTREE(widget);
1175         GtkCTreeNode *node;
1176
1177         if (!event) return FALSE;
1178         if (!mimeview->opened) return FALSE;
1179
1180         summaryview = mimeview->messageview->mainwin->summaryview;
1181
1182         if (summaryview && quicksearch_has_focus(summaryview->quicksearch))
1183                 return FALSE;
1184
1185         switch (event->keyval) {
1186         case GDK_space:
1187                 if (textview_scroll_page(mimeview->textview, FALSE))
1188                         return TRUE;
1189
1190                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
1191                 if (node) {
1192                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
1193                         gtk_sctree_select(GTK_SCTREE(ctree), node);
1194                         return TRUE;
1195                 }
1196                 break;
1197         case GDK_BackSpace:
1198                 textview_scroll_page(mimeview->textview, TRUE);
1199                 return TRUE;
1200         case GDK_Return:
1201                 textview_scroll_one_line(mimeview->textview,
1202                                          (event->state & GDK_MOD1_MASK) != 0);
1203                 return TRUE;
1204         case GDK_n:
1205         case GDK_N:
1206                 BREAK_ON_MODIFIER_KEY();
1207                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
1208                 KEY_PRESS_EVENT_STOP();
1209                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1210                                         GTK_SCROLL_STEP_FORWARD, 0.0);
1211                 return TRUE;
1212         case GDK_p:
1213         case GDK_P:
1214                 BREAK_ON_MODIFIER_KEY();
1215                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
1216                 KEY_PRESS_EVENT_STOP();
1217                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1218                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
1219                 return TRUE;
1220         case GDK_y:
1221                 BREAK_ON_MODIFIER_KEY();
1222                 KEY_PRESS_EVENT_STOP();
1223                 mimeview_save_as(mimeview);
1224                 return TRUE;
1225         case GDK_t:
1226                 BREAK_ON_MODIFIER_KEY();
1227                 KEY_PRESS_EVENT_STOP();
1228                 mimeview_display_as_text(mimeview);
1229                 return TRUE;
1230         case GDK_l:
1231                 BREAK_ON_MODIFIER_KEY();
1232                 KEY_PRESS_EVENT_STOP();
1233                 mimeview_launch(mimeview);
1234                 return TRUE;
1235         case GDK_o:
1236                 BREAK_ON_MODIFIER_KEY();
1237                 KEY_PRESS_EVENT_STOP();
1238                 mimeview_open_with(mimeview);
1239                 return TRUE;
1240         case GDK_c:
1241                 BREAK_ON_MODIFIER_KEY();
1242                 KEY_PRESS_EVENT_STOP();
1243                 mimeview_check_signature(mimeview);
1244                 return TRUE;
1245         default:
1246                 break;
1247         }
1248
1249         if (!mimeview->messageview->mainwin) return FALSE;
1250
1251         summary_pass_key_press_event(summaryview, event);
1252         return TRUE;
1253 }
1254
1255 static void mimeview_drag_data_get(GtkWidget        *widget,
1256                                    GdkDragContext   *drag_context,
1257                                    GtkSelectionData *selection_data,
1258                                    guint             info,
1259                                    guint             time,
1260                                    MimeView         *mimeview)
1261 {
1262         gchar *filename = NULL, *uriname, *tmp;
1263         MimeInfo *partinfo;
1264
1265         if (!mimeview->opened) return;
1266         if (!mimeview->file) return;
1267
1268         partinfo = mimeview_get_selected_part(mimeview);
1269         if (!partinfo) return;
1270
1271         if (strlen(get_part_name(partinfo)) > 0) {
1272                 filename = g_path_get_basename(get_part_name(partinfo));
1273                 if (*filename == '\0') return;
1274         } else if (partinfo->type == MIMETYPE_MESSAGE
1275                    && !g_ascii_strcasecmp(partinfo->subtype, "rfc822")) {
1276                 gchar *name = NULL;
1277                 GPtrArray *headers = NULL;
1278                 FILE *fp;
1279
1280                 fp = g_fopen(partinfo->data.filename, "rb");
1281                 fseek(fp, partinfo->offset, SEEK_SET);
1282                 headers = procheader_get_header_array_asis(fp);
1283                 if (headers) {
1284                         gint i;
1285                         for (i = 0; i < headers->len; i++) {
1286                                 Header *header = g_ptr_array_index(headers, i);
1287                                 if (procheader_headername_equal(header->name, "Subject")) {
1288                                         unfold_line(header->body);
1289                                         name = g_strconcat(header->body, ".txt", NULL);
1290                                         subst_for_filename(name);
1291                                 }
1292                         }
1293                         procheader_header_array_destroy(headers);
1294                 }
1295                 fclose(fp);
1296                 if (name)
1297                         filename = g_path_get_basename(name);
1298                 g_free(name);
1299         }
1300         if (filename == NULL)
1301                 filename = g_path_get_basename("Unnamed part");
1302
1303
1304         tmp = g_filename_from_utf8(filename, -1, NULL, NULL, NULL);
1305
1306         if (tmp == NULL) {
1307                 g_warning("filename not in UTF-8");
1308                 tmp = g_strdup("Unnamed part");
1309         }
1310         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1311                                tmp, NULL);
1312
1313         g_free(tmp);
1314
1315         if (procmime_get_part(filename, partinfo) < 0)
1316                 alertpanel_error
1317                         (_("Can't save the part of multipart message."));
1318         uriname = g_strconcat("file://", filename, "\r\n", NULL);
1319
1320         gtk_selection_data_set(selection_data, selection_data->target, 8,
1321                                (guchar *)uriname, strlen(uriname));
1322
1323         g_free(uriname);
1324         g_free(filename);
1325 }
1326
1327 /**
1328  * Returns a filename (with path) for an attachment
1329  * \param partinfo The attachment to save
1330  * \param basedir The target directory
1331  * \param number Used for dummy filename if attachment is unnamed
1332  */
1333 gchar *mimeview_get_filename_for_part(MimeInfo *partinfo,
1334                                       const gchar *basedir,
1335                                       gint number)
1336 {
1337         gchar *fullname;
1338         gchar *filename;
1339
1340         filename = g_strdup(get_part_name(partinfo));
1341         if (!filename || !*filename)
1342                 filename = g_strdup_printf("noname.%d", number);
1343
1344         if (!g_utf8_validate(filename, -1, NULL)) {
1345                 gchar *tmp = conv_filename_to_utf8(filename);
1346                 g_free(filename);
1347                 filename = tmp;
1348         }
1349
1350         subst_for_filename(filename);
1351
1352         fullname = g_strconcat
1353                 (basedir, G_DIR_SEPARATOR_S, (filename[0] == G_DIR_SEPARATOR)
1354                  ? &filename[1] : filename, NULL);
1355
1356         g_free(filename);
1357         filename = conv_filename_from_utf8(fullname);
1358         g_free(fullname);
1359         return filename;
1360 }
1361
1362 /**
1363  * Write a single attachment to file
1364  * \param filename Filename with path
1365  * \param partinfo Attachment to save
1366  */
1367 static gboolean mimeview_write_part(const gchar *filename,
1368                                     MimeInfo *partinfo)
1369 {
1370         gchar *dir;
1371
1372         dir= g_path_get_dirname(filename);
1373         if (!is_dir_exist(dir))
1374                 make_dir_hier(dir);
1375         g_free(dir);
1376
1377         if (is_file_exist(filename)) {
1378                 AlertValue aval;
1379                 gchar *res;
1380                 gchar *tmp;
1381
1382                 if (!g_utf8_validate(filename, -1, NULL))
1383                         tmp = conv_filename_to_utf8(filename);
1384                 else
1385                         tmp = g_strdup(filename);
1386
1387                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1388                                       tmp);
1389                 g_free(tmp);
1390                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
1391                                   GTK_STOCK_OK, NULL);
1392                 g_free(res);
1393                 if (G_ALERTALTERNATE != aval) return FALSE;
1394         }
1395
1396         if (procmime_get_part(filename, partinfo) < 0) {
1397                 alertpanel_error
1398                         (_("Can't save the part of multipart message."));
1399                 return FALSE;
1400         }
1401
1402         return TRUE;
1403 }
1404
1405 /**
1406  * Menu callback: Save all attached files
1407  * \param mimeview Current display
1408  */
1409 static void mimeview_save_all(MimeView *mimeview)
1410 {
1411         MimeInfo *partinfo;
1412         gchar *dirname;
1413         gchar *startdir = NULL;
1414         gint number = 1;
1415
1416         if (!mimeview->opened) return;
1417         if (!mimeview->file) return;
1418         if (!mimeview->mimeinfo) return;
1419
1420         partinfo = mimeview->mimeinfo;
1421         if (prefs_common.attach_save_dir)
1422                 startdir = g_strconcat(prefs_common.attach_save_dir,
1423                                        G_DIR_SEPARATOR_S, NULL);
1424
1425         dirname = filesel_select_file_save_folder(_("Select destination folder"), startdir);
1426         if (!dirname) {
1427                 g_free(startdir);
1428                 return;
1429         }
1430
1431         if (!is_dir_exist (dirname)) {
1432                 alertpanel_error(_("'%s' is not a directory."),
1433                                  dirname);
1434                 g_free(startdir);
1435                 return;
1436         }
1437
1438         if (dirname[strlen(dirname)-1] == G_DIR_SEPARATOR)
1439                 dirname[strlen(dirname)-1] = '\0';
1440
1441         /* Skip the first part, that is sometimes DISPOSITIONTYPE_UNKNOWN */
1442         if (partinfo && partinfo->type == MIMETYPE_MESSAGE)
1443                 partinfo = procmime_mimeinfo_next(partinfo);
1444         if (partinfo && partinfo->type == MIMETYPE_MULTIPART) {
1445                 partinfo = procmime_mimeinfo_next(partinfo);
1446                 if (partinfo && partinfo->type == MIMETYPE_TEXT)
1447                         partinfo = procmime_mimeinfo_next(partinfo);
1448         }
1449
1450         while (partinfo != NULL) {
1451                 if (partinfo->type != MIMETYPE_MESSAGE &&
1452                     partinfo->type != MIMETYPE_MULTIPART &&
1453                     (partinfo->disposition != DISPOSITIONTYPE_INLINE
1454                      || get_real_part_name(partinfo) != NULL)) {
1455                         gchar *filename = mimeview_get_filename_for_part
1456                                 (partinfo, dirname, number++);
1457
1458                         mimeview_write_part(filename, partinfo);
1459                         g_free(filename);
1460                 }
1461                 partinfo = procmime_mimeinfo_next(partinfo);
1462         }
1463
1464         g_free(prefs_common.attach_save_dir);
1465         g_free(startdir);
1466         prefs_common.attach_save_dir = g_strdup(dirname);
1467 }
1468
1469 static MimeInfo *mimeview_get_part_to_use(MimeView *mimeview)
1470 {
1471         MimeInfo *partinfo = NULL;
1472         if (mimeview->spec_part) {
1473                 partinfo = mimeview->spec_part;
1474                 mimeview->spec_part = NULL;
1475         } else {
1476                 partinfo = mimeview_get_selected_part(mimeview);
1477                 if (!partinfo) {
1478                         partinfo = (MimeInfo *) g_object_get_data
1479                                  (G_OBJECT(mimeview->popupmenu),
1480                                  "pop_partinfo");
1481                         g_object_set_data(G_OBJECT(mimeview->popupmenu),
1482                                           "pop_partinfo", NULL);
1483                 }
1484         }
1485
1486         return partinfo;
1487 }
1488 /**
1489  * Menu callback: Save the selected attachment
1490  * \param mimeview Current display
1491  */
1492 static void mimeview_save_as(MimeView *mimeview)
1493 {
1494         gchar *filename;
1495         gchar *filepath = NULL;
1496         gchar *filedir = NULL;
1497         MimeInfo *partinfo;
1498         gchar *partname = NULL;
1499
1500         if (!mimeview->opened) return;
1501         if (!mimeview->file) return;
1502
1503         partinfo = mimeview_get_part_to_use(mimeview);
1504
1505         g_return_if_fail(partinfo != NULL);
1506
1507         if (get_part_name(partinfo) == NULL) {
1508                 return;
1509         }
1510         partname = g_strdup(get_part_name(partinfo));
1511
1512         if (!g_utf8_validate(partname, -1, NULL)) {
1513                 gchar *tmp = conv_filename_to_utf8(partname);
1514                 g_free(partname);
1515                 partname = tmp;
1516         }
1517
1518         subst_for_filename(partname);
1519
1520         if (prefs_common.attach_save_dir)
1521                 filepath = g_strconcat(prefs_common.attach_save_dir,
1522                                        G_DIR_SEPARATOR_S, partname, NULL);
1523         else
1524                 filepath = g_strdup(partname);
1525
1526         g_free(partname);
1527
1528         filename = filesel_select_file_save(_("Save as"), filepath);
1529         if (!filename) {
1530                 g_free(filepath);
1531                 return;
1532         }
1533
1534         mimeview_write_part(filename, partinfo);
1535
1536         filedir = g_path_get_dirname(filename);
1537         if (filedir && strcmp(filedir, ".")) {
1538                 g_free(prefs_common.attach_save_dir);
1539                 prefs_common.attach_save_dir = g_strdup(filedir);
1540         }
1541
1542         g_free(filedir);
1543         g_free(filepath);
1544 }
1545
1546 static void mimeview_display_as_text(MimeView *mimeview)
1547 {
1548         MimeInfo *partinfo;
1549
1550         if (!mimeview->opened) return;
1551
1552         partinfo = mimeview_get_part_to_use(mimeview);
1553
1554         g_return_if_fail(partinfo != NULL);
1555         mimeview_show_message_part(mimeview, partinfo);
1556 }
1557
1558 static void mimeview_launch(MimeView *mimeview)
1559 {
1560         MimeInfo *partinfo;
1561         gchar *filename;
1562
1563         if (!mimeview->opened) return;
1564         if (!mimeview->file) return;
1565
1566         partinfo = mimeview_get_part_to_use(mimeview);
1567
1568         g_return_if_fail(partinfo != NULL);
1569
1570         filename = procmime_get_tmp_file_name(partinfo);
1571
1572         if (procmime_get_part(filename, partinfo) < 0)
1573                 alertpanel_error
1574                         (_("Can't save the part of multipart message."));
1575         else
1576                 mimeview_view_file(filename, partinfo, NULL, mimeview);
1577
1578         g_free(filename);
1579 }
1580
1581 static void mimeview_open_with(MimeView *mimeview)
1582 {
1583         MimeInfo *partinfo;
1584
1585         if (!mimeview) return;
1586         if (!mimeview->opened) return;
1587         if (!mimeview->file) return;
1588
1589         partinfo = mimeview_get_part_to_use(mimeview);
1590
1591         mimeview_open_part_with(mimeview, partinfo);
1592 }
1593
1594 static void mimeview_open_part_with(MimeView *mimeview, MimeInfo *partinfo)
1595 {
1596         gchar *filename;
1597         gchar *cmd;
1598         gchar *mime_command = NULL;
1599         gchar *content_type = NULL;
1600
1601         g_return_if_fail(partinfo != NULL);
1602
1603         filename = procmime_get_tmp_file_name(partinfo);
1604
1605         if (procmime_get_part(filename, partinfo) < 0) {
1606                 alertpanel_error
1607                         (_("Can't save the part of multipart message."));
1608                 g_free(filename);
1609                 return;
1610         }
1611
1612         if (!prefs_common.mime_open_cmd_history)
1613                 prefs_common.mime_open_cmd_history =
1614                         add_history(NULL, prefs_common.mime_open_cmd);
1615
1616         if ((partinfo->type == MIMETYPE_APPLICATION) &&
1617             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
1618                 /* guess content-type from filename */
1619                 content_type = procmime_get_mime_type(filename);
1620         }
1621         if (content_type == NULL) {
1622                 content_type = procmime_get_content_type_str(partinfo->type,
1623                         partinfo->subtype);
1624         }
1625         mime_command = mailcap_get_command_for_type(content_type);
1626
1627         if (mime_command == NULL) {
1628                 /* try with extension this time */
1629                 g_free(content_type);
1630                 content_type = procmime_get_mime_type(filename);
1631                 mime_command = mailcap_get_command_for_type(content_type);
1632         }
1633
1634         g_free(content_type);
1635         cmd = input_dialog_combo
1636                 (_("Open with"),
1637                  _("Enter the command line to open file:\n"
1638                    "('%s' will be replaced with file name)"),
1639                  mime_command ? mime_command : prefs_common.mime_open_cmd,
1640                  prefs_common.mime_open_cmd_history,
1641                  TRUE);
1642         g_free(mime_command);
1643         if (cmd) {
1644                 mimeview_view_file(filename, partinfo, cmd, mimeview);
1645                 g_free(prefs_common.mime_open_cmd);
1646                 prefs_common.mime_open_cmd = cmd;
1647                 prefs_common.mime_open_cmd_history =
1648                         add_history(prefs_common.mime_open_cmd_history, cmd);
1649         }
1650
1651         g_free(filename);
1652 }
1653
1654 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1655                                const gchar *cmdline, MimeView *mimeview)
1656 {
1657         static gchar *default_image_cmdline = DEFAULT_IMAGE_VIEWER_CMD;
1658         static gchar *default_audio_cmdline = DEFAULT_AUDIO_PLAYER_CMD;
1659         static gchar *default_html_cmdline = DEFAULT_BROWSER_CMD;
1660         static gchar *mime_cmdline = DEFAULT_MIME_CMD;
1661         gchar buf[1024];
1662         gchar m_buf[1024];
1663         const gchar *cmd;
1664         const gchar *def_cmd;
1665         const gchar *p;
1666
1667         if (cmdline) {
1668                 cmd = cmdline;
1669                 def_cmd = NULL;
1670         } else if (MIMETYPE_APPLICATION == partinfo->type &&
1671                    !g_ascii_strcasecmp(partinfo->subtype, "octet-stream")) {
1672                 mimeview_open_part_with(mimeview, partinfo);
1673                 return;
1674         } else if (MIMETYPE_IMAGE == partinfo->type) {
1675                 cmd = prefs_common.mime_image_viewer;
1676                 def_cmd = default_image_cmdline;
1677         } else if (MIMETYPE_AUDIO == partinfo->type) {
1678                 cmd = prefs_common.mime_audio_player;
1679                 def_cmd = default_audio_cmdline;
1680         } else if (MIMETYPE_TEXT == partinfo->type && !strcmp(partinfo->subtype, "html")) {
1681                 cmd = prefs_common.uri_cmd;
1682                 def_cmd = default_html_cmdline;
1683         } else {
1684                 gchar *content_type;
1685
1686                 content_type = procmime_get_content_type_str(partinfo->type, partinfo->subtype);
1687                 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
1688                            content_type, "%s");
1689                 g_free(content_type);
1690                 cmd = m_buf;
1691                 def_cmd = NULL;
1692         }
1693
1694         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
1695             !strchr(p + 2, '%'))
1696                 g_snprintf(buf, sizeof(buf), cmd, filename);
1697         else {
1698                 if (cmd)
1699                         g_warning("MIME viewer command line is invalid: '%s'", cmd);
1700                 if (def_cmd)
1701                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
1702                 else {
1703                         mimeview_open_part_with(mimeview, partinfo);
1704                         return;
1705                 }
1706         }
1707
1708         if (execute_command_line(buf, TRUE) != 0)
1709                 mimeview_open_part_with(mimeview, partinfo);
1710 }
1711
1712 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1713 {
1714         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1715 }
1716
1717 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1718 {
1719         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1720 }
1721
1722 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1723 {
1724         GSList *mimeview_list, *viewer_list;
1725
1726         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1727                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1728
1729                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1730                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1731                         mimeview->mimeviewer = NULL;
1732                 }
1733
1734                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1735                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1736
1737                         mimeviewer->destroy_viewer(mimeviewer);
1738                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1739                 }
1740         }
1741
1742         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1743 }
1744
1745 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1746 {
1747         gint      num;
1748         MimeInfo *partinfo;
1749
1750         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1751         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1752
1753         icon_selected(mimeview, num, partinfo);
1754         gtk_widget_grab_focus(button);
1755         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1756                 toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1757                 if (event->button == 2 || event->button == 3)
1758                         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button),
1759                                                      TRUE);
1760         }
1761
1762         part_button_pressed(mimeview, event, partinfo);
1763
1764         return FALSE;
1765 }
1766
1767 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
1768 {
1769         GtkCTreeNode *node;
1770         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1771         if (node)
1772                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1773 }
1774
1775 #undef  KEY_PRESS_EVENT_STOP
1776 #define KEY_PRESS_EVENT_STOP() \
1777         g_signal_stop_emission_by_name(G_OBJECT(button), \
1778                                        "key_press_event");
1779
1780 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
1781                              MimeView *mimeview)
1782 {
1783         gint          num;
1784         MimeInfo     *partinfo;
1785         SummaryView  *summaryview;
1786         TextView     *textview;
1787
1788         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1789         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1790
1791         if (!event) return FALSE;
1792
1793         textview = mimeview->textview;
1794
1795         switch (event->keyval) {
1796         case GDK_space:
1797                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1798                         /* stop the button being untoggled */
1799                         KEY_PRESS_EVENT_STOP();
1800                         if (textview_scroll_page(textview, FALSE))
1801                                 return TRUE;
1802
1803                         if (icon_list_select_by_number(mimeview, num + 1))
1804                                 return TRUE;
1805                 } else {
1806                         icon_selected(mimeview, num, partinfo);
1807                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1808                         return TRUE;
1809                 }
1810
1811                 break;
1812         case GDK_BackSpace:
1813                 textview_scroll_page(textview, TRUE);
1814                 return TRUE;
1815         case GDK_Return:
1816                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1817                         KEY_PRESS_EVENT_STOP();
1818                         textview_scroll_one_line(textview,
1819                                                  (event->state & GDK_MOD1_MASK) != 0);
1820                         return TRUE;
1821                 } else {
1822                         icon_selected(mimeview, num, partinfo);
1823                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1824                         return TRUE;
1825                 }
1826
1827         case GDK_n:
1828         case GDK_N:
1829                 BREAK_ON_MODIFIER_KEY();
1830                 if (icon_list_select_by_number(mimeview, num + 1)) {
1831                         KEY_PRESS_EVENT_STOP();
1832                         return TRUE;
1833                 }
1834                 break;
1835
1836         case GDK_p:
1837         case GDK_P:
1838                 BREAK_ON_MODIFIER_KEY();
1839                 if (icon_list_select_by_number(mimeview, num - 1)) {
1840                         KEY_PRESS_EVENT_STOP();
1841                         return TRUE;
1842                 }
1843                 break;
1844
1845         case GDK_y:
1846                 BREAK_ON_MODIFIER_KEY();
1847                 KEY_PRESS_EVENT_STOP();
1848                 mimeview_save_as(mimeview);
1849                 return TRUE;
1850         case GDK_t:
1851                 BREAK_ON_MODIFIER_KEY();
1852                 KEY_PRESS_EVENT_STOP();
1853                 mimeview_display_as_text(mimeview);
1854                 return TRUE;
1855         case GDK_l:
1856                 BREAK_ON_MODIFIER_KEY();
1857                 KEY_PRESS_EVENT_STOP();
1858                 mimeview_launch(mimeview);
1859                 return TRUE;
1860         case GDK_o:
1861                 BREAK_ON_MODIFIER_KEY();
1862                 KEY_PRESS_EVENT_STOP();
1863                 mimeview_open_with(mimeview);
1864                 return TRUE;
1865         case GDK_c:
1866                 BREAK_ON_MODIFIER_KEY();
1867                 KEY_PRESS_EVENT_STOP();
1868                 mimeview_check_signature(mimeview);
1869                 return TRUE;
1870         default:
1871                 break;
1872         }
1873
1874         if (!mimeview->messageview->mainwin) return FALSE;
1875         summaryview = mimeview->messageview->mainwin->summaryview;
1876         return summary_pass_key_press_event(summaryview, event);
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                 gtk_widget_destroy(GTK_WIDGET(child->data));
2046         }
2047         g_list_free(child);
2048         mimeview->icon_count = 0;
2049         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2050         gtk_adjustment_set_value(adj, adj->lower);
2051 }
2052
2053 static void icon_list_toggle_by_mime_info(MimeView      *mimeview,
2054                                           MimeInfo      *mimeinfo)
2055 {
2056         GList *child;
2057
2058         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2059         for (; child != NULL; child = g_list_next(child)) {
2060                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2061                     g_object_get_data(G_OBJECT(child->data),
2062                                       "partinfo") == (gpointer)mimeinfo) {
2063                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2064                         gtk_toggle_button_set_active
2065                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2066                 }
2067         }
2068 }
2069
2070 /*!
2071  *\brief        Used to 'click' the next or previous icon.
2072  *
2073  *\return       true if the icon 'number' exists and was selected.
2074  */
2075 static gboolean icon_list_select_by_number(MimeView     *mimeview,
2076                                            gint          number)
2077 {
2078         GList *child;
2079
2080         if (number == 0) return FALSE;
2081         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2082         for (; child != NULL; child = g_list_next(child)) {
2083                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2084                     GPOINTER_TO_INT(g_object_get_data(G_OBJECT(child->data),
2085                                         "icon_number")) == number) {
2086                         icon_selected(mimeview, number,
2087                                       (MimeInfo*)g_object_get_data(G_OBJECT(child->data),
2088                                                                    "partinfo"));
2089                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2090                         gtk_toggle_button_set_active
2091                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2092                         gtk_widget_grab_focus(GTK_WIDGET(child->data));
2093
2094                         return TRUE;
2095                 }
2096         }
2097         return FALSE;
2098 }
2099
2100 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
2101                                          GtkAllocation *size, MimeView *mimeview)
2102 {
2103         GtkAllocation *mainbox_size;
2104         GtkAllocation *vbox_size;
2105         GtkAllocation *layout_size;
2106         GtkAdjustment *adj;
2107
2108         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2109
2110         mainbox_size = &mimeview->icon_mainbox->allocation;
2111         vbox_size = &mimeview->icon_vbox->allocation;
2112         layout_size = &mimeview->icon_scroll->allocation;
2113
2114         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
2115                             GTK_LAYOUT(mimeview->icon_scroll)->width,
2116                             MAX(vbox_size->height, layout_size->height));
2117         adj->step_increment = 5;
2118 }
2119
2120 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
2121 {
2122         GtkRequisition size;
2123
2124         g_return_if_fail(mimeinfo != NULL);
2125
2126         while (mimeinfo != NULL) {
2127                 if (mimeinfo->type != MIMETYPE_MULTIPART)
2128                         icon_list_append_icon(mimeview, mimeinfo);
2129                 if (mimeinfo->node->children != NULL)
2130                         icon_list_create(mimeview,
2131                                 (MimeInfo *) mimeinfo->node->children->data);
2132                 mimeinfo = mimeinfo->node->next != NULL
2133                          ? (MimeInfo *) mimeinfo->node->next->data
2134                          : NULL;
2135         }
2136         gtk_widget_size_request(mimeview->icon_vbox, &size);
2137         if (size.width > mimeview->icon_mainbox->requisition.width) {
2138                 gtk_widget_set_size_request(mimeview->icon_mainbox,
2139                                             size.width, -1);
2140         }
2141
2142 }
2143
2144 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
2145 {
2146         gtk_widget_ref(button);
2147
2148         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
2149                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
2150                                         GTK_SHADOW_NONE);
2151                 gtk_widget_hide(mimeview->icon_mainbox);
2152                 gtk_widget_show(mimeview->ctree_mainbox);
2153                 gtk_paned_set_position(GTK_PANED(mimeview->paned), mimeview->oldsize);
2154
2155                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
2156                                         button);
2157                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
2158                                    button, FALSE, FALSE, 0);
2159                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 6);
2160         } else {
2161                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
2162                               GTK_SHADOW_NONE);
2163                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.height;
2164                 gtk_widget_hide(mimeview->ctree_mainbox);
2165                 gtk_widget_show(mimeview->icon_mainbox);
2166                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
2167
2168                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
2169                                         button);
2170                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
2171                                    button, FALSE, FALSE, 0);
2172                 gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
2173                 if (mimeview->opened)
2174                         icon_list_toggle_by_mime_info
2175                                 (mimeview, gtk_ctree_node_get_row_data(GTK_CTREE(mimeview->ctree),
2176                                                                        mimeview->opened));
2177
2178                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 0);
2179         }
2180         gtk_widget_grab_focus(button);
2181         gtk_widget_unref(button);
2182
2183 }
2184
2185 void mimeview_update (MimeView *mimeview) {
2186         if (mimeview && mimeview->mimeinfo) {
2187                 icon_list_clear(mimeview);
2188                 icon_list_create(mimeview, mimeview->mimeinfo);
2189         }
2190 }
2191
2192 void mimeview_handle_cmd(MimeView *mimeview, const gchar *cmd, GdkEventButton *event, gpointer data)
2193 {
2194         MessageView *msgview = NULL;
2195         MainWindow *mainwin = NULL;
2196
2197         if (!cmd)
2198                 return;
2199
2200         msgview = mimeview->messageview;
2201         if (!msgview)
2202                 return;
2203
2204         mainwin = msgview->mainwin;
2205         if (!mainwin)
2206                 return;
2207
2208         else if (!strcmp(cmd, "sc://view_log"))
2209                 log_window_show(mainwin->logwin);
2210         else if (!strcmp(cmd, "sc://save_as"))
2211                 mimeview_save_as(mimeview);
2212         else if (!strcmp(cmd, "sc://display_as_text"))
2213                 mimeview_display_as_text(mimeview);
2214         else if (!strcmp(cmd, "sc://open_with"))
2215                 mimeview_open_with(mimeview);
2216         else if (!strcmp(cmd, "sc://open"))
2217                 mimeview_launch(mimeview);
2218         else if (!strcmp(cmd, "sc://select_attachment") && data != NULL) {
2219                 icon_list_toggle_by_mime_info(mimeview, (MimeInfo *)data);
2220                 icon_selected(mimeview, -1, (MimeInfo *)data);
2221         } else if (!strcmp(cmd, "sc://open_attachment") && data != NULL) {
2222                 icon_list_toggle_by_mime_info(mimeview, (MimeInfo *)data);
2223                 icon_selected(mimeview, -1, (MimeInfo *)data);
2224                 mimeview_launch(mimeview);
2225         } else if (!strcmp(cmd, "sc://menu_attachment") && data != NULL) {
2226                 mimeview->spec_part = (MimeInfo *)data;
2227                 part_button_pressed(mimeview, event, (MimeInfo *)data);
2228         }
2229 }
2230