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