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         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 664 }
 665
 666 static void check_signature_cb(GtkWidget *widget, gpointer user_data);
 667 void mimeview_check_signature(MimeView *mimeview);
 668 static void display_full_info_cb(GtkWidget *widget, gpointer user_data);
 669
 670 static void update_signature_noticeview(MimeView *mimeview, MimeInfo *mimeinfo,
 671                                         gboolean special, SignatureStatus code)
 672 {
 673         gchar *text = NULL, *button_text = NULL;
 674         void  *func = NULL;
 675         StockPixmap icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 676         SignatureStatus mycode = SIGNATURE_UNCHECKED;
 677
 678         g_return_if_fail(mimeview != NULL);
 679         g_return_if_fail(mimeinfo != NULL);
 680
 681         if (special)
 682                 mycode = code;
 683         else
 684                 mycode = privacy_mimeinfo_get_sig_status(mimeinfo);
 685
 686         switch (mycode) {
 687         case SIGNATURE_UNCHECKED:
 688                 button_text = _("Check signature");
 689                 func = check_signature_cb;
 690                 icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 691                 break;
 692         case SIGNATURE_OK:
 693                 button_text = _("View full information");
 694                 func = display_full_info_cb;
 695                 icon = STOCK_PIXMAP_PRIVACY_PASSED;
 696                 break;
 697         case SIGNATURE_WARN:
 698                 button_text = _("View full information");
 699                 func = display_full_info_cb;
 700                 icon = STOCK_PIXMAP_PRIVACY_WARN;
 701                 break;
 702         case SIGNATURE_INVALID:
 703                 button_text = _("View full information");
 704                 func = display_full_info_cb;
 705                 icon = STOCK_PIXMAP_PRIVACY_FAILED;
 706                 break;
 707         case SIGNATURE_CHECK_FAILED:
 708                 button_text = _("Check again");
 709                 func = check_signature_cb;
 710                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 711         case SIGNATURE_CHECK_TIMEOUT:
 712                 button_text = _("Check again");
 713                 func = check_signature_cb;
 714                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 715         default:
 716                 break;
 717         }
 718         if (mycode == SIGNATURE_UNCHECKED) {
 719                 gchar *tmp = privacy_mimeinfo_sig_info_short(mimeinfo);
 720                 text = g_strdup_printf("%s %s",
 721                         tmp, _("Click the icon or hit 'C' to check it."));
 722                 g_free(tmp);
 723         } else if (mycode != SIGNATURE_CHECK_TIMEOUT) {
 724                 text = privacy_mimeinfo_sig_info_short(mimeinfo);
 725         } else if (mycode == SIGNATURE_CHECK_TIMEOUT) {
 726                 text = g_strdup(_("Timeout checking the signature. Click the icon or hit 'C' to try again."));
 727         }
 728
 729         noticeview_set_text(mimeview->siginfoview, text);
 730         gtk_label_set_selectable(GTK_LABEL(mimeview->siginfoview->text), TRUE);
 731
 732         g_free(text);
 733         noticeview_set_button_text(mimeview->siginfoview, NULL);
 734         noticeview_set_button_press_callback(
 735                 mimeview->siginfoview,
 736                 G_CALLBACK(func),
 737                 (gpointer) mimeview);
 738         noticeview_set_icon(mimeview->siginfoview, icon);
 739         noticeview_set_tooltip(mimeview->siginfoview, button_text);
 740 }
 741
 742 #ifdef USE_PTHREAD
 743
 744 /* reset all thread stuff, and do the cleanups we've been left to do */
 745 static void mimeview_check_data_reset(MimeView *mimeview)
 746 {
 747         if (!mimeview->check_data)
 748                 return;
 749
 750         if (mimeview->check_data->free_after_use) {
 751                 debug_print("freeing deferred mimeinfo\n");
 752                 procmime_mimeinfo_free_all(mimeview->check_data->siginfo);
 753         }
 754         if (mimeview->check_data->destroy_mimeview) {
 755                 debug_print("freeing deferred mimeview\n");
 756                 g_free(mimeview->file);
 757                 g_free(mimeview);
 758                 mimeviews = g_slist_remove(mimeviews, mimeview);
 759         }
 760
 761         g_free(mimeview->check_data);
 762         mimeview->check_data = NULL;
 763 }
 764
 765 /* GUI update once the checker thread is done or killed */
 766 static gboolean mimeview_check_sig_thread_cb(void *data)
 767 {
 768         MimeView *mimeview = (MimeView *) data;
 769         MimeInfo *mimeinfo = mimeview->siginfo;
 770
 771         debug_print("mimeview_check_sig_thread_cb\n");
 772
 773         if (mimeinfo == NULL) {
 774                 /* message changed !? */
 775                 g_warning("no more siginfo!\n");
 776                 goto end;
 777         }
 778
 779         if (!mimeview->check_data) {
 780                 g_warning("nothing to check\n");
 781                 return FALSE;
 782         }
 783
 784         if (mimeview->check_data->siginfo != mimeinfo) {
 785                 /* message changed !? */
 786                 g_warning("different siginfo!\n");
 787                 goto end;
 788         }
 789
 790         if (mimeview->check_data->destroy_mimeview ||
 791             mimeview->check_data->free_after_use) {
 792                 debug_print("not bothering, we're changing message\n");
 793                 goto end;
 794         }
 795
 796         /* update status */
 797         if (mimeview->check_data->timeout)
 798                 update_signature_noticeview(mimeview, mimeview->siginfo,
 799                         TRUE, SIGNATURE_CHECK_TIMEOUT);
 800         else
 801                 update_signature_noticeview(mimeview, mimeview->siginfo,
 802                         FALSE, 0);
 803         icon_list_clear(mimeview);
 804         icon_list_create(mimeview, mimeview->mimeinfo);
 805
 806 end:
 807         mimeview_check_data_reset(mimeview);
 808         return FALSE;
 809 }
 810
 811 /* sig checker thread */
 812 static void *mimeview_check_sig_worker_thread(void *data)
 813 {
 814         MimeView *mimeview = (MimeView *)data;
 815         MimeInfo *mimeinfo = mimeview->siginfo;
 816
 817         debug_print("checking...\n");
 818
 819         if (!mimeview->check_data)
 820                 return NULL;
 821
 822         if (mimeinfo && mimeinfo == mimeview->check_data->siginfo)
 823                 privacy_mimeinfo_check_signature(mimeinfo);
 824         else {
 825                 /* that's strange! we changed message without
 826                  * getting killed. */
 827                 g_warning("different siginfo!\n");
 828                 mimeview_check_data_reset(mimeview);
 829                 return NULL;
 830         }
 831
 832         /* use g_timeout so that GUI updates is done from the
 833          * correct thread */
 834         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 835
 836         return NULL;
 837 }
 838
 839 /* killer thread - acts when the checker didn't work fast
 840  * enough. */
 841 static void *mimeview_check_sig_cancel_thread(void *data)
 842 {
 843         MimeView *mimeview = (MimeView *)data;
 844
 845         if (!mimeview->check_data)
 846                 return NULL; /* nothing to kill ! */
 847
 848         /* wait for a few seconds... */
 849         debug_print("waiting a while\n");
 850
 851         sleep(5);
 852
 853         if (!mimeview->check_data)
 854                 return NULL; /* nothing to kill, it's done in time :) */
 855
 856         /* too late, go away checker thread */
 857         debug_print("killing checker thread\n");
 858         pthread_cancel(mimeview->check_data->th);
 859
 860         /* tell upstream it was a timeout */
 861         mimeview->check_data->timeout = TRUE;
 862         /* use g_timeout so that GUI updates is done from the
 863          * correct thread */
 864         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 865
 866         return NULL;
 867 }
 868
 869 /* get rid of the checker thread right now - used when changing the
 870  * displayed message for example. */
 871 static void mimeview_check_sig_cancel_now(MimeView *mimeview)
 872 {
 873         if (!mimeview->check_data)
 874                 return;
 875         debug_print("killing checker thread NOW\n");
 876         pthread_cancel(mimeview->check_data->th);
 877
 878         /* tell upstream it was a timeout */
 879         mimeview->check_data->timeout = TRUE;
 880         mimeview_check_sig_thread_cb(mimeview);
 881         return;
 882 }
 883
 884 /* creates a thread to check the signature, and a second one
 885  * to kill the first one after a timeout */
 886 static void mimeview_check_sig_in_thread(MimeView *mimeview)
 887 {
 888         pthread_t th, th2;
 889         pthread_attr_t detach, detach2;
 890
 891         if (mimeview->check_data) {
 892                 g_warning("already checking it");
 893                 return;
 894         }
 895
 896         mimeview->check_data = g_new0(SigCheckData, 1);
 897         mimeview->check_data->siginfo = mimeview->siginfo;
 898         debug_print("creating thread\n");
 899
 900         pthread_attr_init(&detach);
 901         pthread_attr_setdetachstate(&detach, TRUE);
 902
 903         pthread_attr_init(&detach2);
 904         pthread_attr_setdetachstate(&detach2, TRUE);
 905
 906         /* create the checker thread */
 907         if (pthread_create(&th, &detach,
 908                         mimeview_check_sig_worker_thread,
 909                         mimeview) != 0) {
 910                 /* arh. We'll do it synchronously. */
 911                 g_warning("can't create thread");
 912                 g_free(mimeview->check_data);
 913                 mimeview->check_data = NULL;
 914                 return;
 915         } else
 916                 mimeview->check_data->th = th;
 917
 918         /* create the killer thread */
 919         pthread_create(&th2, &detach2,
 920                         mimeview_check_sig_cancel_thread,
 921                         mimeview);
 922 }
 923 #endif
 924
 925 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
 926 {
 927         MimeView *mimeview = (MimeView *) user_data;
 928         MimeInfo *mimeinfo = mimeview->siginfo;
 929
 930         if (mimeinfo == NULL)
 931                 return;
 932 #ifdef USE_PTHREAD
 933         if (mimeview->check_data)
 934                 return;
 935 #endif
 936         noticeview_set_text(mimeview->siginfoview, _("Checking signature..."));
 937         GTK_EVENTS_FLUSH();
 938 #if (defined USE_PTHREAD && defined __GLIBC__ && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)))
 939         /* let's do it non-blocking */
 940         mimeview_check_sig_in_thread(mimeview);
 941         if (!mimeview->check_data) /* let's check syncronously */
 942 #endif
 943         {
 944                 debug_print("checking without thread\n");
 945                 privacy_mimeinfo_check_signature(mimeinfo);
 946                 update_signature_noticeview(mimeview, mimeview->siginfo, FALSE, 0);
 947                 icon_list_clear(mimeview);
 948                 icon_list_create(mimeview, mimeview->mimeinfo);
 949         }
 950 }
 951
 952 void mimeview_check_signature(MimeView *mimeview)
 953 {
 954         check_signature_cb(NULL, mimeview);
 955 }
 956
 957 static void redisplay_email(GtkWidget *widget, gpointer user_data)
 958 {
 959         MimeView *mimeview = (MimeView *) user_data;
 960         GtkCTreeNode *node = mimeview->opened;
 961         mimeview->opened = NULL;
 962         mimeview_selected(GTK_CTREE(mimeview->ctree), node, 0, mimeview);
 963 }
 964
 965 static void display_full_info_cb(GtkWidget *widget, gpointer user_data)
 966 {
 967         MimeView *mimeview = (MimeView *) user_data;
 968         gchar *siginfo;
 969
 970         siginfo = privacy_mimeinfo_sig_info_full(mimeview->siginfo);
 971         textview_set_text(mimeview->textview, siginfo);
 972         g_free(siginfo);
 973         noticeview_set_button_text(mimeview->siginfoview, NULL);
 974         noticeview_set_button_press_callback(
 975                 mimeview->siginfoview,
 976                 G_CALLBACK(redisplay_email),
 977                 (gpointer) mimeview);
 978         noticeview_set_tooltip(mimeview->siginfoview, _("Go back to email"));
 979 }
 980
 981 static void update_signature_info(MimeView *mimeview, MimeInfo *selected)
 982 {
 983         MimeInfo *siginfo;
 984         MimeInfo *first_text;
 985
 986         g_return_if_fail(mimeview != NULL);
 987         g_return_if_fail(selected != NULL);
 988
 989         if (selected->type == MIMETYPE_MESSAGE
 990         &&  !g_ascii_strcasecmp(selected->subtype, "rfc822")) {
 991                 /* if the first text part is signed, check that */
 992                 first_text = selected;
 993                 while (first_text && first_text->type != MIMETYPE_TEXT) {
 994                         first_text = procmime_mimeinfo_next(first_text);
 995                 }
 996                 if (first_text) {
 997                         update_signature_info(mimeview, first_text);
 998                         return;
 999                 }
1000         }
1001
1002         siginfo = selected;
1003         while (siginfo != NULL) {
1004                 if (privacy_mimeinfo_is_signed(siginfo))
1005                         break;
1006                 siginfo = procmime_mimeinfo_parent(siginfo);
1007         }
1008         mimeview->siginfo = siginfo;
1009
1010         if (siginfo == NULL) {
1011                 noticeview_hide(mimeview->siginfoview);
1012                 return;
1013         }
1014
1015         update_signature_noticeview(mimeview, siginfo, FALSE, 0);
1016         noticeview_show(mimeview->siginfoview);
1017 }
1018
1019 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
1020                               MimeView *mimeview)
1021 {
1022         MimeInfo *partinfo;
1023         AlertValue val;
1024         if (mimeview->opened == node) return;
1025         mimeview->opened = node;
1026         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
1027
1028         partinfo = gtk_ctree_node_get_row_data(ctree, node);
1029         if (!partinfo) return;
1030
1031         /* ungrab the mouse event */
1032         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1033                 gtk_grab_remove(GTK_WIDGET(ctree));
1034                 if (gdk_pointer_is_grabbed())
1035                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1036         }
1037
1038         mimeview->textview->default_text = FALSE;
1039
1040         update_signature_info(mimeview, partinfo);
1041
1042         if (!mimeview_show_part(mimeview, partinfo)) {
1043                 switch (partinfo->type) {
1044                 case MIMETYPE_TEXT:
1045                 case MIMETYPE_MESSAGE:
1046                 case MIMETYPE_MULTIPART:
1047                         mimeview_show_message_part(mimeview, partinfo);
1048
1049                         break;
1050                 default:
1051                         mimeview->textview->default_text = TRUE;
1052                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1053                         textview_clear(mimeview->textview);
1054                         val = alertpanel_full(_("Unknown part type"),
1055                                               _("The type of this part is unknown. What would you like "
1056                                                 "to do with it?"),
1057                                               GTK_STOCK_SAVE, GTK_STOCK_OPEN, _("Display as text"),
1058                                               FALSE, NULL, ALERT_WARNING, G_ALERTALTERNATE);
1059                         switch (val) {
1060                                 case G_ALERTDEFAULT:
1061                                         mimeview_save_as(mimeview);
1062                                         break;
1063                                 case G_ALERTALTERNATE:
1064                                         mimeview_open_with(mimeview);
1065                                         break;
1066                                 case G_ALERTOTHER:
1067                                         mimeview_display_as_text(mimeview);
1068                                         break;
1069                                 default:
1070                                         textview_show_mime_part(mimeview->textview, partinfo);
1071                         }
1072
1073                         break;
1074                 }
1075         }
1076 }
1077
1078 static void mimeview_start_drag(GtkWidget *widget, gint button,
1079                                 GdkEvent *event, MimeView *mimeview)
1080 {
1081         GdkDragContext *context;
1082         MimeInfo *partinfo;
1083
1084         g_return_if_fail(mimeview != NULL);
1085
1086         partinfo = mimeview_get_selected_part(mimeview);
1087         if (partinfo->disposition == DISPOSITIONTYPE_INLINE) return;
1088
1089         context = gtk_drag_begin(widget, mimeview->target_list,
1090                                  GDK_ACTION_COPY, button, event);
1091         gtk_drag_set_icon_default(context);
1092 }
1093
1094 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
1095                                     MimeView *mimeview)
1096 {
1097         GtkCList *clist = GTK_CLIST(widget);
1098         gint row, column;
1099
1100         if (!event) return FALSE;
1101
1102         if (event->button == 2 || event->button == 3) {
1103                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1104                                                   &row, &column))
1105                         return FALSE;
1106                 gtk_clist_unselect_all(clist);
1107                 gtk_clist_select_row(clist, row, column);
1108                 gtkut_clist_set_focus_row(clist, row);
1109         }
1110         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
1111
1112         return FALSE;
1113 }
1114
1115 /* from gdkevents.c */
1116 #define DOUBLE_CLICK_TIME 250
1117
1118 static gboolean part_button_pressed(MimeView *mimeview, GdkEventButton *event,
1119                                     MimeInfo *partinfo)
1120 {
1121         static MimeInfo *lastinfo;
1122         static guint32 lasttime;
1123
1124         if (event->button == 2 ||
1125             (event->button == 1 && (event->time - lasttime) < DOUBLE_CLICK_TIME && lastinfo == partinfo)) {
1126                 /* call external program for image, audio or html */
1127                 mimeview_launch(mimeview);
1128                 return TRUE;
1129         } else if (event->button == 3) {
1130                 if (partinfo && (partinfo->type == MIMETYPE_TEXT ||
1131                                  partinfo->type == MIMETYPE_MESSAGE ||
1132                                  partinfo->type == MIMETYPE_IMAGE ||
1133                                  partinfo->type == MIMETYPE_MULTIPART))
1134                         menu_set_sensitive(mimeview->popupfactory,
1135                                            "/Display as text", FALSE);
1136                 else
1137                         menu_set_sensitive(mimeview->popupfactory,
1138                                            "/Display as text", TRUE);
1139                 if (partinfo &&
1140                     partinfo->type == MIMETYPE_APPLICATION &&
1141                     !g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))
1142                         menu_set_sensitive(mimeview->popupfactory,
1143                                            "/Open", FALSE);
1144                 else
1145                         menu_set_sensitive(mimeview->popupfactory,
1146                                            "/Open", TRUE);
1147
1148                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1149                                   "pop_partinfo", partinfo);
1150
1151                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
1152                                NULL, NULL, NULL, NULL,
1153                                event->button, event->time);
1154                 return TRUE;
1155         }
1156
1157         lastinfo = partinfo;
1158         lasttime = event->time;
1159         return FALSE;
1160 }
1161
1162
1163 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
1164 {
1165         mimeview_key_pressed(mimeview->ctree, event, mimeview);
1166 }
1167
1168 #define BREAK_ON_MODIFIER_KEY() \
1169         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1170
1171 #define KEY_PRESS_EVENT_STOP() \
1172         g_signal_stop_emission_by_name(G_OBJECT(ctree), \
1173                                        "key_press_event");
1174
1175 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1176                                  MimeView *mimeview)
1177 {
1178         SummaryView *summaryview;
1179         GtkCTree *ctree = GTK_CTREE(widget);
1180         GtkCTreeNode *node;
1181
1182         if (!event) return FALSE;
1183         if (!mimeview->opened) return FALSE;
1184
1185         summaryview = mimeview->messageview->mainwin->summaryview;
1186
1187         if (summaryview && quicksearch_has_focus(summaryview->quicksearch))
1188                 return FALSE;
1189
1190         switch (event->keyval) {
1191         case GDK_space:
1192                 if (textview_scroll_page(mimeview->textview, FALSE))
1193                         return TRUE;
1194
1195                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
1196                 if (node) {
1197                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
1198                         gtk_sctree_select(GTK_SCTREE(ctree), node);
1199                         return TRUE;
1200                 }
1201                 break;
1202         case GDK_BackSpace:
1203                 textview_scroll_page(mimeview->textview, TRUE);
1204                 return TRUE;
1205         case GDK_Return:
1206                 textview_scroll_one_line(mimeview->textview,
1207                                          (event->state & GDK_MOD1_MASK) != 0);
1208                 return TRUE;
1209         case GDK_n:
1210         case GDK_N:
1211                 BREAK_ON_MODIFIER_KEY();
1212                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
1213                 KEY_PRESS_EVENT_STOP();
1214                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1215                                         GTK_SCROLL_STEP_FORWARD, 0.0);
1216                 return TRUE;
1217         case GDK_p:
1218         case GDK_P:
1219                 BREAK_ON_MODIFIER_KEY();
1220                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
1221                 KEY_PRESS_EVENT_STOP();
1222                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1223                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
1224                 return TRUE;
1225         case GDK_y:
1226                 BREAK_ON_MODIFIER_KEY();
1227                 KEY_PRESS_EVENT_STOP();
1228                 mimeview_save_as(mimeview);
1229                 return TRUE;
1230         case GDK_t:
1231                 BREAK_ON_MODIFIER_KEY();
1232                 KEY_PRESS_EVENT_STOP();
1233                 mimeview_display_as_text(mimeview);
1234                 return TRUE;
1235         case GDK_l:
1236                 BREAK_ON_MODIFIER_KEY();
1237                 KEY_PRESS_EVENT_STOP();
1238                 mimeview_launch(mimeview);
1239                 return TRUE;
1240         case GDK_o:
1241                 BREAK_ON_MODIFIER_KEY();
1242                 KEY_PRESS_EVENT_STOP();
1243                 mimeview_open_with(mimeview);
1244                 return TRUE;
1245         case GDK_c:
1246                 BREAK_ON_MODIFIER_KEY();
1247                 KEY_PRESS_EVENT_STOP();
1248                 mimeview_check_signature(mimeview);
1249                 return TRUE;
1250         default:
1251                 break;
1252         }
1253
1254         if (!mimeview->messageview->mainwin) return FALSE;
1255
1256         summary_pass_key_press_event(summaryview, event);
1257         return TRUE;
1258 }
1259
1260 static void mimeview_drag_data_get(GtkWidget        *widget,
1261                                    GdkDragContext   *drag_context,
1262                                    GtkSelectionData *selection_data,
1263                                    guint             info,
1264                                    guint             time,
1265                                    MimeView         *mimeview)
1266 {
1267         gchar *filename, *uriname, *tmp;
1268         MimeInfo *partinfo;
1269
1270         if (!mimeview->opened) return;
1271         if (!mimeview->file) return;
1272
1273         partinfo = mimeview_get_selected_part(mimeview);
1274         if (!partinfo) return;
1275
1276         filename = g_path_get_basename(get_part_name(partinfo));
1277         if (*filename == '\0') return;
1278
1279         tmp = filename;
1280
1281         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1282                                filename, NULL);
1283
1284         g_free(tmp);
1285
1286         if (procmime_get_part(filename, partinfo) < 0)
1287                 alertpanel_error
1288                         (_("Can't save the part of multipart message."));
1289
1290         uriname = g_strconcat("file://", filename, NULL);
1291         gtk_selection_data_set(selection_data, selection_data->target, 8,
1292                                uriname, strlen(uriname));
1293
1294         g_free(uriname);
1295         g_free(filename);
1296 }
1297
1298 /**
1299  * Returns a filename (with path) for an attachment
1300  * \param partinfo The attachment to save
1301  * \param basedir The target directory
1302  * \param number Used for dummy filename if attachment is unnamed
1303  */
1304 gchar *mimeview_get_filename_for_part(MimeInfo *partinfo,
1305                                       const gchar *basedir,
1306                                       gint number)
1307 {
1308         gchar *fullname;
1309         gchar *filename;
1310
1311         filename = g_strdup(get_part_name(partinfo));
1312         if (!filename || !*filename)
1313                 filename = g_strdup_printf("noname.%d", number);
1314
1315         if (!g_utf8_validate(filename, -1, NULL)) {
1316                 gchar *tmp = conv_filename_to_utf8(filename);
1317                 g_free(filename);
1318                 filename = tmp;
1319         }
1320
1321         subst_for_filename(filename);
1322
1323         fullname = g_strconcat
1324                 (basedir, G_DIR_SEPARATOR_S, (filename[0] == G_DIR_SEPARATOR)
1325                  ? &filename[1] : filename, NULL);
1326
1327         g_free(filename);
1328         filename = conv_filename_from_utf8(fullname);
1329         g_free(fullname);
1330         return filename;
1331 }
1332
1333 /**
1334  * Write a single attachment to file
1335  * \param filename Filename with path
1336  * \param partinfo Attachment to save
1337  */
1338 static gboolean mimeview_write_part(const gchar *filename,
1339                                     MimeInfo *partinfo)
1340 {
1341         gchar *dir;
1342
1343         dir= g_path_get_dirname(filename);
1344         if (!is_dir_exist(dir))
1345                 make_dir_hier(dir);
1346         g_free(dir);
1347
1348         if (is_file_exist(filename)) {
1349                 AlertValue aval;
1350                 gchar *res;
1351                 gchar *tmp;
1352
1353                 if (!g_utf8_validate(filename, -1, NULL))
1354                         tmp = conv_filename_to_utf8(filename);
1355                 else
1356                         tmp = g_strdup(filename);
1357
1358                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1359                                       tmp);
1360                 g_free(tmp);
1361                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
1362                                   GTK_STOCK_OK, NULL);
1363                 g_free(res);
1364                 if (G_ALERTALTERNATE != aval) return FALSE;
1365         }
1366
1367         if (procmime_get_part(filename, partinfo) < 0) {
1368                 alertpanel_error
1369                         (_("Can't save the part of multipart message."));
1370                 return FALSE;
1371         }
1372
1373         return TRUE;
1374 }
1375
1376 /**
1377  * Menu callback: Save all attached files
1378  * \param mimeview Current display
1379  */
1380 static void mimeview_save_all(MimeView *mimeview)
1381 {
1382         MimeInfo *partinfo;
1383         gchar *dirname;
1384         gchar *startdir = NULL;
1385         gint number = 1;
1386
1387         if (!mimeview->opened) return;
1388         if (!mimeview->file) return;
1389         if (!mimeview->mimeinfo) return;
1390
1391         partinfo = mimeview->mimeinfo;
1392         if (prefs_common.attach_save_dir)
1393                 startdir = g_strconcat(prefs_common.attach_save_dir,
1394                                        G_DIR_SEPARATOR_S, NULL);
1395
1396         dirname = filesel_select_file_save_folder(_("Select destination folder"), startdir);
1397         if (!dirname) {
1398                 if (startdir) g_free(startdir);
1399                 return;
1400         }
1401
1402         if (!is_dir_exist (dirname)) {
1403                 alertpanel_error(_("'%s' is not a directory."),
1404                                  dirname);
1405                 if (startdir) g_free(startdir);
1406                 return;
1407         }
1408
1409         if (dirname[strlen(dirname)-1] == G_DIR_SEPARATOR)
1410                 dirname[strlen(dirname)-1] = '\0';
1411
1412         /* Skip the first part, that is sometimes DISPOSITIONTYPE_UNKNOWN */
1413         if (partinfo && partinfo->type == MIMETYPE_MESSAGE)
1414                 partinfo = procmime_mimeinfo_next(partinfo);
1415         if (partinfo && partinfo->type == MIMETYPE_MULTIPART) {
1416                 partinfo = procmime_mimeinfo_next(partinfo);
1417                 if (partinfo && partinfo->type == MIMETYPE_TEXT)
1418                         partinfo = procmime_mimeinfo_next(partinfo);
1419         }
1420
1421         while (partinfo != NULL) {
1422                 if (partinfo->type != MIMETYPE_MESSAGE &&
1423                     partinfo->type != MIMETYPE_MULTIPART &&
1424                     partinfo->disposition != DISPOSITIONTYPE_INLINE) {
1425                         gchar *filename = mimeview_get_filename_for_part
1426                                 (partinfo, dirname, number++);
1427
1428                         mimeview_write_part(filename, partinfo);
1429                         g_free(filename);
1430                 }
1431                 partinfo = procmime_mimeinfo_next(partinfo);
1432         }
1433
1434         if (prefs_common.attach_save_dir)
1435                 g_free(prefs_common.attach_save_dir);
1436
1437         prefs_common.attach_save_dir = g_strdup(dirname);
1438
1439         if (startdir) g_free(startdir);
1440 }
1441
1442 /**
1443  * Menu callback: Save the selected attachment
1444  * \param mimeview Current display
1445  */
1446 static void mimeview_save_as(MimeView *mimeview)
1447 {
1448         gchar *filename;
1449         gchar *filepath = NULL;
1450         gchar *filedir = NULL;
1451         MimeInfo *partinfo;
1452         gchar *partname = NULL;
1453
1454         if (!mimeview->opened) return;
1455         if (!mimeview->file) return;
1456
1457         partinfo = mimeview_get_selected_part(mimeview);
1458         if (!partinfo) {
1459                 partinfo = (MimeInfo *) g_object_get_data
1460                          (G_OBJECT(mimeview->popupmenu),
1461                          "pop_partinfo");
1462                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1463                                   "pop_partinfo", NULL);
1464         }
1465         g_return_if_fail(partinfo != NULL);
1466
1467         if (get_part_name(partinfo) == NULL) {
1468                 return;
1469         }
1470         partname = g_strdup(get_part_name(partinfo));
1471
1472         if (!g_utf8_validate(partname, -1, NULL)) {
1473                 gchar *tmp = conv_filename_to_utf8(partname);
1474                 g_free(partname);
1475                 partname = tmp;
1476         }
1477
1478         subst_for_filename(partname);
1479
1480         if (prefs_common.attach_save_dir)
1481                 filepath = g_strconcat(prefs_common.attach_save_dir,
1482                                        G_DIR_SEPARATOR_S, partname, NULL);
1483         else
1484                 filepath = g_strdup(partname);
1485
1486         g_free(partname);
1487
1488         filename = filesel_select_file_save(_("Save as"), filepath);
1489         if (!filename) {
1490                 g_free(filepath);
1491                 return;
1492         }
1493
1494         mimeview_write_part(filename, partinfo);
1495
1496         filedir = g_path_get_dirname(filename);
1497         if (filedir && strcmp(filedir, ".")) {
1498                 if (prefs_common.attach_save_dir)
1499                         g_free(prefs_common.attach_save_dir);
1500                 prefs_common.attach_save_dir = g_strdup(filedir);
1501         }
1502
1503         g_free(filedir);
1504         g_free(filepath);
1505 }
1506
1507 static void mimeview_display_as_text(MimeView *mimeview)
1508 {
1509         MimeInfo *partinfo;
1510
1511         if (!mimeview->opened) return;
1512
1513         partinfo = mimeview_get_selected_part(mimeview);
1514         if (!partinfo)  {
1515                 partinfo = (MimeInfo *) g_object_get_data
1516                         (G_OBJECT(mimeview->popupmenu),
1517                          "pop_partinfo");
1518                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1519                                   "pop_partinfo", NULL);
1520
1521         }
1522         g_return_if_fail(partinfo != NULL);
1523         mimeview_show_message_part(mimeview, partinfo);
1524 }
1525
1526 static void mimeview_launch(MimeView *mimeview)
1527 {
1528         MimeInfo *partinfo;
1529         gchar *filename;
1530
1531         if (!mimeview->opened) return;
1532         if (!mimeview->file) return;
1533
1534         partinfo = mimeview_get_selected_part(mimeview);
1535         if (!partinfo) {
1536                 partinfo = (MimeInfo *) g_object_get_data
1537                         (G_OBJECT(mimeview->popupmenu),
1538                          "pop_partinfo");
1539                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1540                                   "pop_partinfo", NULL);
1541         }
1542         g_return_if_fail(partinfo != NULL);
1543
1544         filename = procmime_get_tmp_file_name(partinfo);
1545
1546         if (procmime_get_part(filename, partinfo) < 0)
1547                 alertpanel_error
1548                         (_("Can't save the part of multipart message."));
1549         else
1550                 mimeview_view_file(filename, partinfo, NULL, mimeview);
1551
1552         g_free(filename);
1553 }
1554
1555 static void mimeview_open_with(MimeView *mimeview)
1556 {
1557         MimeInfo *partinfo;
1558         gchar *filename;
1559         gchar *cmd;
1560         gchar *mime_command = NULL;
1561         gchar *content_type = NULL;
1562
1563         if (!mimeview) return;
1564         if (!mimeview->opened) return;
1565         if (!mimeview->file) return;
1566
1567         partinfo = mimeview_get_selected_part(mimeview);
1568         if (!partinfo) {
1569                 partinfo = (MimeInfo *) g_object_get_data
1570                         (G_OBJECT(mimeview->popupmenu),
1571                          "pop_partinfo");
1572                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1573                                   "pop_partinfo", NULL);
1574         }
1575         g_return_if_fail(partinfo != NULL);
1576
1577         filename = procmime_get_tmp_file_name(partinfo);
1578
1579         if (procmime_get_part(filename, partinfo) < 0) {
1580                 alertpanel_error
1581                         (_("Can't save the part of multipart message."));
1582                 g_free(filename);
1583                 return;
1584         }
1585
1586         if (!prefs_common.mime_open_cmd_history)
1587                 prefs_common.mime_open_cmd_history =
1588                         add_history(NULL, prefs_common.mime_open_cmd);
1589
1590         if ((partinfo->type == MIMETYPE_APPLICATION) &&
1591             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
1592                 /* guess content-type from filename */
1593                 content_type = procmime_get_mime_type(filename);
1594         }
1595         if (content_type == NULL) {
1596                 content_type = procmime_get_content_type_str(partinfo->type,
1597                         partinfo->subtype);
1598         }
1599         mime_command = mailcap_get_command_for_type(content_type);
1600         g_free(content_type);
1601         cmd = input_dialog_combo
1602                 (_("Open with"),
1603                  _("Enter the command line to open file:\n"
1604                    "('%s' will be replaced with file name)"),
1605                  mime_command ? mime_command : prefs_common.mime_open_cmd,
1606                  prefs_common.mime_open_cmd_history,
1607                  TRUE);
1608         g_free(mime_command);
1609         if (cmd) {
1610                 mimeview_view_file(filename, partinfo, cmd, mimeview);
1611                 g_free(prefs_common.mime_open_cmd);
1612                 prefs_common.mime_open_cmd = cmd;
1613                 prefs_common.mime_open_cmd_history =
1614                         add_history(prefs_common.mime_open_cmd_history, cmd);
1615         }
1616
1617         g_free(filename);
1618 }
1619
1620 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1621                                const gchar *cmdline, MimeView *mimeview)
1622 {
1623         static gchar *default_image_cmdline = DEFAULT_IMAGE_VIEWER_CMD;
1624         static gchar *default_audio_cmdline = DEFAULT_AUDIO_PLAYER_CMD;
1625         static gchar *default_html_cmdline = DEFAULT_BROWSER_CMD;
1626         static gchar *mime_cmdline = DEFAULT_MIME_CMD;
1627         gchar buf[1024];
1628         gchar m_buf[1024];
1629         const gchar *cmd;
1630         const gchar *def_cmd;
1631         const gchar *p;
1632
1633         if (cmdline) {
1634                 cmd = cmdline;
1635                 def_cmd = NULL;
1636         } else if (MIMETYPE_APPLICATION == partinfo->type &&
1637                    !g_ascii_strcasecmp(partinfo->subtype, "octet-stream")) {
1638                 mimeview_open_with(mimeview);
1639                 return;
1640         } else if (MIMETYPE_IMAGE == partinfo->type) {
1641                 cmd = prefs_common.mime_image_viewer;
1642                 def_cmd = default_image_cmdline;
1643         } else if (MIMETYPE_AUDIO == partinfo->type) {
1644                 cmd = prefs_common.mime_audio_player;
1645                 def_cmd = default_audio_cmdline;
1646         } else if (MIMETYPE_TEXT == partinfo->type && !strcmp(partinfo->subtype, "html")) {
1647                 cmd = prefs_common.uri_cmd;
1648                 def_cmd = default_html_cmdline;
1649         } else {
1650                 gchar *content_type;
1651
1652                 content_type = procmime_get_content_type_str(partinfo->type, partinfo->subtype);
1653                 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
1654                            content_type, "%s");
1655                 g_free(content_type);
1656                 cmd = m_buf;
1657                 def_cmd = NULL;
1658         }
1659
1660         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
1661             !strchr(p + 2, '%'))
1662                 g_snprintf(buf, sizeof(buf), cmd, filename);
1663         else {
1664                 if (cmd)
1665                         g_warning("MIME viewer command line is invalid: '%s'", cmd);
1666                 if (def_cmd)
1667                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
1668                 else {
1669                         mimeview_open_with(mimeview);
1670                         return;
1671                 }
1672         }
1673
1674         if (execute_command_line(buf, TRUE) != 0)
1675                 mimeview_open_with(mimeview);
1676 }
1677
1678 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1679 {
1680         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1681 }
1682
1683 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1684 {
1685         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1686 }
1687
1688 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1689 {
1690         GSList *mimeview_list, *viewer_list;
1691
1692         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1693                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1694
1695                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1696                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1697                         mimeview->mimeviewer = NULL;
1698                 }
1699
1700                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1701                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1702
1703                         mimeviewer->destroy_viewer(mimeviewer);
1704                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1705                 }
1706         }
1707
1708         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1709 }
1710
1711 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1712 {
1713         gint      num;
1714         MimeInfo *partinfo;
1715
1716         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1717         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1718
1719         icon_selected(mimeview, num, partinfo);
1720         gtk_widget_grab_focus(button);
1721         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1722                 toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1723                 if (event->button == 2 || event->button == 3)
1724                         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button),
1725                                                      TRUE);
1726         }
1727
1728         part_button_pressed(mimeview, event, partinfo);
1729
1730         return FALSE;
1731 }
1732
1733 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
1734 {
1735         GtkCTreeNode *node;
1736         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1737         if (node)
1738                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1739 }
1740
1741 #undef  KEY_PRESS_EVENT_STOP
1742 #define KEY_PRESS_EVENT_STOP() \
1743         g_signal_stop_emission_by_name(G_OBJECT(button), \
1744                                        "key_press_event");
1745
1746 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
1747                              MimeView *mimeview)
1748 {
1749         gint          num;
1750         MimeInfo     *partinfo;
1751         SummaryView  *summaryview;
1752         TextView     *textview;
1753
1754         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1755         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1756
1757         if (!event) return FALSE;
1758
1759         textview = mimeview->textview;
1760
1761         switch (event->keyval) {
1762         case GDK_space:
1763                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1764                         /* stop the button being untoggled */
1765                         KEY_PRESS_EVENT_STOP();
1766                         if (textview_scroll_page(textview, FALSE))
1767                                 return TRUE;
1768
1769                         if (icon_list_select_by_number(mimeview, num + 1))
1770                                 return TRUE;
1771                 } else {
1772                         icon_selected(mimeview, num, partinfo);
1773                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1774                         return TRUE;
1775                 }
1776
1777                 break;
1778         case GDK_BackSpace:
1779                 textview_scroll_page(textview, TRUE);
1780                 return TRUE;
1781         case GDK_Return:
1782                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1783                         KEY_PRESS_EVENT_STOP();
1784                         textview_scroll_one_line(textview,
1785                                                  (event->state & GDK_MOD1_MASK) != 0);
1786                         return TRUE;
1787                 } else {
1788                         icon_selected(mimeview, num, partinfo);
1789                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1790                         return TRUE;
1791                 }
1792
1793         case GDK_n:
1794         case GDK_N:
1795                 BREAK_ON_MODIFIER_KEY();
1796                 if (icon_list_select_by_number(mimeview, num + 1)) {
1797                         KEY_PRESS_EVENT_STOP();
1798                         return TRUE;
1799                 }
1800                 break;
1801
1802         case GDK_p:
1803         case GDK_P:
1804                 BREAK_ON_MODIFIER_KEY();
1805                 if (icon_list_select_by_number(mimeview, num - 1)) {
1806                         KEY_PRESS_EVENT_STOP();
1807                         return TRUE;
1808                 }
1809                 break;
1810
1811         case GDK_y:
1812                 BREAK_ON_MODIFIER_KEY();
1813                 KEY_PRESS_EVENT_STOP();
1814                 mimeview_save_as(mimeview);
1815                 return TRUE;
1816         case GDK_t:
1817                 BREAK_ON_MODIFIER_KEY();
1818                 KEY_PRESS_EVENT_STOP();
1819                 mimeview_display_as_text(mimeview);
1820                 return TRUE;
1821         case GDK_l:
1822                 BREAK_ON_MODIFIER_KEY();
1823                 KEY_PRESS_EVENT_STOP();
1824                 mimeview_launch(mimeview);
1825                 return TRUE;
1826         case GDK_o:
1827                 BREAK_ON_MODIFIER_KEY();
1828                 KEY_PRESS_EVENT_STOP();
1829                 mimeview_open_with(mimeview);
1830                 return TRUE;
1831         case GDK_c:
1832                 BREAK_ON_MODIFIER_KEY();
1833                 KEY_PRESS_EVENT_STOP();
1834                 mimeview_check_signature(mimeview);
1835                 return TRUE;
1836         default:
1837                 break;
1838         }
1839
1840         if (!mimeview->messageview->mainwin) return FALSE;
1841         summaryview = mimeview->messageview->mainwin->summaryview;
1842         summary_pass_key_press_event(summaryview, event);
1843         return TRUE;
1844 }
1845
1846 static void toggle_icon(GtkToggleButton *button, MimeView *mimeview)
1847 {
1848         GList *child;
1849
1850         child = gtk_container_get_children(GTK_CONTAINER(mimeview->icon_vbox));
1851         for (; child != NULL; child = g_list_next(child)) {
1852                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1853                     GTK_TOGGLE_BUTTON(child->data) != button &&
1854                     gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(child->data)))
1855                         gtk_toggle_button_set_active
1856                                 (GTK_TOGGLE_BUTTON(child->data),
1857                                  FALSE);
1858         }
1859 }
1860
1861 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
1862 {
1863         GtkWidget *pixmap = NULL;
1864         GtkWidget *vbox;
1865         GtkWidget *button;
1866         gchar *tip;
1867         gchar *tiptmp;
1868         const gchar *desc = NULL;
1869         gchar *sigshort = NULL;
1870         gchar *content_type;
1871         StockPixmap stockp;
1872         MimeInfo *partinfo;
1873         MimeInfo *siginfo = NULL;
1874         MimeInfo *encrypted = NULL;
1875
1876         vbox = mimeview->icon_vbox;
1877         mimeview->icon_count++;
1878         button = gtk_toggle_button_new();
1879         gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
1880         g_object_set_data(G_OBJECT(button), "icon_number",
1881                           GINT_TO_POINTER(mimeview->icon_count));
1882         g_object_set_data(G_OBJECT(button), "partinfo",
1883                           mimeinfo);
1884
1885         switch (mimeinfo->type) {
1886
1887         case MIMETYPE_TEXT:
1888                 if (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
1889                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
1890                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched"))
1891                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
1892                 else
1893                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
1894                 break;
1895         case MIMETYPE_MESSAGE:
1896                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
1897                 break;
1898         case MIMETYPE_APPLICATION:
1899                 stockp = STOCK_PIXMAP_MIME_APPLICATION;
1900                 break;
1901         case MIMETYPE_IMAGE:
1902                 stockp = STOCK_PIXMAP_MIME_IMAGE;
1903                 break;
1904         case MIMETYPE_AUDIO:
1905                 stockp = STOCK_PIXMAP_MIME_AUDIO;
1906                 break;
1907         default:
1908                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
1909                 break;
1910         }
1911
1912         partinfo = mimeinfo;
1913         while (partinfo != NULL) {
1914                 if (privacy_mimeinfo_is_signed(partinfo)) {
1915                         siginfo = partinfo;
1916                         break;
1917                 }
1918                 if (privacy_mimeinfo_is_encrypted(partinfo)) {
1919                         encrypted = partinfo;
1920                         break;
1921                 }
1922                 partinfo = procmime_mimeinfo_parent(partinfo);
1923         }
1924
1925         if (siginfo != NULL) {
1926                 switch (privacy_mimeinfo_get_sig_status(siginfo)) {
1927                 case SIGNATURE_UNCHECKED:
1928                 case SIGNATURE_CHECK_FAILED:
1929                 case SIGNATURE_CHECK_TIMEOUT:
1930                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1931                             STOCK_PIXMAP_PRIVACY_EMBLEM_SIGNED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1932                         break;
1933                 case SIGNATURE_OK:
1934                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1935                             STOCK_PIXMAP_PRIVACY_EMBLEM_PASSED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1936                         break;
1937                 case SIGNATURE_WARN:
1938                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1939                             STOCK_PIXMAP_PRIVACY_EMBLEM_WARN, OVERLAY_BOTTOM_RIGHT, 6, 3);
1940                         break;
1941                 case SIGNATURE_INVALID:
1942                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1943                             STOCK_PIXMAP_PRIVACY_EMBLEM_FAILED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1944                         break;
1945                 }
1946                 sigshort = privacy_mimeinfo_sig_info_short(siginfo);
1947         } else if (encrypted != NULL) {
1948                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
1949                             STOCK_PIXMAP_PRIVACY_EMBLEM_ENCRYPTED, OVERLAY_BOTTOM_RIGHT, 6, 3);
1950         } else {
1951                 pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp, 0,
1952                                                           OVERLAY_NONE, 6, 3);
1953         }
1954         gtk_container_add(GTK_CONTAINER(button), pixmap);
1955
1956         if (!desc) {
1957                 if (prefs_common.attach_desc)
1958                         desc = get_part_description(mimeinfo);
1959                 else
1960                         desc = get_part_name(mimeinfo);
1961         }
1962
1963         content_type = procmime_get_content_type_str(mimeinfo->type,
1964                                                      mimeinfo->subtype);
1965
1966         tip = g_strjoin("\n", content_type,
1967                         to_human_readable(mimeinfo->length), NULL);
1968         g_free(content_type);
1969         if (desc && *desc) {
1970                 gchar *tmp = NULL;
1971                 if (!g_utf8_validate(desc, -1, NULL)) {
1972                         tmp = conv_filename_to_utf8(desc);
1973                 } else {
1974                         tmp = g_strdup(desc);
1975                 }
1976                 tiptmp = g_strjoin("\n", tmp, tip, NULL);
1977                 g_free(tip);
1978                 tip = tiptmp;
1979                 g_free(tmp);
1980         }
1981         if (sigshort && *sigshort) {
1982                 tiptmp = g_strjoin("\n", tip, sigshort, NULL);
1983                 g_free(tip);
1984                 tip = tiptmp;
1985         }
1986         g_free(sigshort);
1987
1988         gtk_tooltips_set_tip(mimeview->tooltips, button, tip, NULL);
1989         g_free(tip);
1990         gtk_widget_show_all(button);
1991         g_signal_connect(G_OBJECT(button), "button_release_event",
1992                          G_CALLBACK(icon_clicked_cb), mimeview);
1993         g_signal_connect(G_OBJECT(button), "key_press_event",
1994                          G_CALLBACK(icon_key_pressed), mimeview);
1995         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
1996
1997 }
1998
1999 static void icon_list_clear (MimeView *mimeview)
2000 {
2001         GList     *child;
2002         GtkAdjustment *adj;
2003
2004         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2005         for (; child != NULL; child = g_list_next(child)) {
2006                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
2007                                        GTK_WIDGET(child->data));
2008         }
2009         mimeview->icon_count = 0;
2010         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2011         gtk_adjustment_set_value(adj, adj->lower);
2012 }
2013
2014 static void icon_list_toggle_by_mime_info(MimeView      *mimeview,
2015                                           MimeInfo      *mimeinfo)
2016 {
2017         GList *child;
2018
2019         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2020         for (; child != NULL; child = g_list_next(child)) {
2021                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2022                     g_object_get_data(G_OBJECT(child->data),
2023                                       "partinfo") == (gpointer)mimeinfo) {
2024                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2025                         gtk_toggle_button_set_active
2026                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2027                 }
2028         }
2029 }
2030
2031 /*!
2032  *\brief        Used to 'click' the next or previous icon.
2033  *
2034  *\return       true if the icon 'number' exists and was selected.
2035  */
2036 static gboolean icon_list_select_by_number(MimeView     *mimeview,
2037                                            gint          number)
2038 {
2039         GList *child;
2040
2041         if (number == 0) return FALSE;
2042         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2043         for (; child != NULL; child = g_list_next(child)) {
2044                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2045                     GPOINTER_TO_INT(g_object_get_data(G_OBJECT(child->data),
2046                                         "icon_number")) == number) {
2047                         icon_selected(mimeview, number,
2048                                       (MimeInfo*)g_object_get_data(G_OBJECT(child->data),
2049                                                                    "partinfo"));
2050                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2051                         gtk_toggle_button_set_active
2052                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2053                         gtk_widget_grab_focus(GTK_WIDGET(child->data));
2054
2055                         return TRUE;
2056                 }
2057         }
2058         return FALSE;
2059 }
2060
2061 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
2062                                          GtkAllocation *size, MimeView *mimeview)
2063 {
2064         GtkAllocation *mainbox_size;
2065         GtkAllocation *vbox_size;
2066         GtkAllocation *layout_size;
2067         GtkAdjustment *adj;
2068
2069         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2070
2071         mainbox_size = &mimeview->icon_mainbox->allocation;
2072         vbox_size = &mimeview->icon_vbox->allocation;
2073         layout_size = &mimeview->icon_scroll->allocation;
2074
2075         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
2076                             GTK_LAYOUT(mimeview->icon_scroll)->width,
2077                             MAX(vbox_size->height, layout_size->height));
2078         adj->step_increment = 5;
2079 }
2080
2081 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
2082 {
2083         GtkRequisition size;
2084
2085         g_return_if_fail(mimeinfo != NULL);
2086
2087         while (mimeinfo != NULL) {
2088                 if (mimeinfo->type != MIMETYPE_MULTIPART)
2089                         icon_list_append_icon(mimeview, mimeinfo);
2090                 if (mimeinfo->node->children != NULL)
2091                         icon_list_create(mimeview,
2092                                 (MimeInfo *) mimeinfo->node->children->data);
2093                 mimeinfo = mimeinfo->node->next != NULL
2094                          ? (MimeInfo *) mimeinfo->node->next->data
2095                          : NULL;
2096         }
2097         gtk_widget_size_request(mimeview->icon_vbox, &size);
2098         if (size.width > mimeview->icon_mainbox->requisition.width) {
2099                 gtk_widget_set_size_request(mimeview->icon_mainbox,
2100                                             size.width, -1);
2101         }
2102
2103 }
2104
2105 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
2106 {
2107         gtk_widget_ref(button);
2108
2109         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
2110                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
2111                                         GTK_SHADOW_NONE);
2112                 gtk_widget_hide(mimeview->icon_mainbox);
2113                 gtk_widget_show(mimeview->ctree_mainbox);
2114                 gtk_paned_set_position(GTK_PANED(mimeview->paned), mimeview->oldsize);
2115
2116                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
2117                                         button);
2118                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
2119                                    button, FALSE, FALSE, 0);
2120                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 6);
2121         } else {
2122                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
2123                               GTK_SHADOW_NONE);
2124                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.height;
2125                 gtk_widget_hide(mimeview->ctree_mainbox);
2126                 gtk_widget_show(mimeview->icon_mainbox);
2127                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
2128
2129                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
2130                                         button);
2131                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
2132                                    button, FALSE, FALSE, 0);
2133                 gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
2134                 if (mimeview->opened)
2135                         icon_list_toggle_by_mime_info
2136                                 (mimeview, gtk_ctree_node_get_row_data(GTK_CTREE(mimeview->ctree),
2137                                                                        mimeview->opened));
2138
2139                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 0);
2140         }
2141         gtk_widget_grab_focus(button);
2142         gtk_widget_unref(button);
2143
2144 }
2145
2146 void mimeview_update (MimeView *mimeview) {
2147         if (mimeview && mimeview->mimeinfo) {
2148                 icon_list_clear(mimeview);
2149                 icon_list_create(mimeview, mimeview->mimeinfo);
2150         }
2151 }