src/mimeview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <gtk/gtknotebook.h>
  30 #include <gtk/gtkscrolledwindow.h>
  31 #include <gtk/gtkctree.h>
  32 #include <gtk/gtkvbox.h>
  33 #include <gtk/gtkhbox.h>
  34 #include <gtk/gtkvpaned.h>
  35 #include <gtk/gtktext.h>
  36 #include <gtk/gtksignal.h>
  37 #include <gtk/gtkmenu.h>
  38 #include <gtk/gtkdnd.h>
  39 #include <gtk/gtkselection.h>
  40 #include <gtk/gtktooltips.h>
  41 #include <gtk/gtkcontainer.h>
  42 #include <gtk/gtkbutton.h>
  43 #include <stdio.h>
  44
  45 #ifndef HAVE_APACHE_FNMATCH
  46 /* kludge: apache's fnmatch clashes with <regex.h>, don't include
  47  * fnmatch.h */
  48 #include <fnmatch.h>
  49 #endif
  50
  51 #include "main.h"
  52 #include "mimeview.h"
  53 #include "textview.h"
  54 #include "procmime.h"
  55 #include "summaryview.h"
  56 #include "menu.h"
  57 #include "filesel.h"
  58 #include "alertpanel.h"
  59 #include "inputdialog.h"
  60 #include "utils.h"
  61 #include "gtkutils.h"
  62 #include "prefs_common.h"
  63 #include "procheader.h"
  64 #include "stock_pixmap.h"
  65 #include "gtk/gtkvscrollbutton.h"
  66 #include "gtk/logwindow.h"
  67 #include "timing.h"
  68
  69 typedef enum
  70 {
  71         COL_MIMETYPE = 0,
  72         COL_SIZE     = 1,
  73         COL_NAME     = 2
  74 } MimeViewColumnPos;
  75
  76 #define N_MIMEVIEW_COLS 3
  77
  78 static void mimeview_set_multipart_tree         (MimeView       *mimeview,
  79                                                  MimeInfo       *mimeinfo,
  80                                                  GtkCTreeNode   *parent);
  81 static GtkCTreeNode *mimeview_append_part       (MimeView       *mimeview,
  82                                                  MimeInfo       *partinfo,
  83                                                  GtkCTreeNode   *parent);
  84 static void mimeview_show_message_part          (MimeView       *mimeview,
  85                                                  MimeInfo       *partinfo);
  86 static void mimeview_change_view_type           (MimeView       *mimeview,
  87                                                  MimeViewType    type);
  88 gchar *mimeview_get_filename_for_part           (MimeInfo       *partinfo,
  89                                                  const gchar    *basedir,
  90                                                  gint            number);
  91 static gboolean mimeview_write_part             (const gchar    *filename,
  92                                                  MimeInfo       *partinfo);
  93
  94 static void mimeview_selected           (GtkCTree       *ctree,
  95                                          GtkCTreeNode   *node,
  96                                          gint            column,
  97                                          MimeView       *mimeview);
  98 static void mimeview_start_drag         (GtkWidget      *widget,
  99                                          gint            button,
 100                                          GdkEvent       *event,
 101                                          MimeView       *mimeview);
 102 static gint mimeview_button_pressed     (GtkWidget      *widget,
 103                                          GdkEventButton *event,
 104                                          MimeView       *mimeview);
 105 static gint mimeview_key_pressed        (GtkWidget      *widget,
 106                                          GdkEventKey    *event,
 107                                          MimeView       *mimeview);
 108
 109 static void mimeview_drag_data_get      (GtkWidget        *widget,
 110                                          GdkDragContext   *drag_context,
 111                                          GtkSelectionData *selection_data,
 112                                          guint             info,
 113                                          guint             time,
 114                                          MimeView         *mimeview);
 115
 116 static gboolean mimeview_scrolled       (GtkWidget      *widget,
 117                                          GdkEventScroll *event,
 118                                          MimeView       *mimeview);
 119 static void mimeview_display_as_text    (MimeView       *mimeview);
 120 static void mimeview_save_as            (MimeView       *mimeview);
 121 static void mimeview_save_all           (MimeView       *mimeview);
 122 static void mimeview_launch             (MimeView       *mimeview,
 123                                          MimeInfo       *partinfo);
 124 static void mimeview_open_with          (MimeView       *mimeview);
 125 static void mimeview_open_part_with     (MimeView       *mimeview,
 126                                          MimeInfo       *partinfo,
 127                                          gboolean        automatic);
 128 static void mimeview_view_file          (const gchar    *filename,
 129                                          MimeInfo       *partinfo,
 130                                          const gchar    *cmd,
 131                                          MimeView       *mimeview);
 132 static gboolean icon_clicked_cb         (GtkWidget      *button,
 133                                          GdkEventButton *event,
 134                                          MimeView       *mimeview);
 135 static void icon_selected               (MimeView       *mimeview,
 136                                          gint            num,
 137                                          MimeInfo       *partinfo);
 138 static gint icon_key_pressed            (GtkWidget      *button,
 139                                          GdkEventKey    *event,
 140                                          MimeView       *mimeview);
 141 static void toggle_icon                 (GtkToggleButton *button,
 142                                          MimeView       *mimeview);
 143 static void icon_list_append_icon       (MimeView       *mimeview,
 144                                          MimeInfo       *mimeinfo);
 145 static void icon_list_create            (MimeView       *mimeview,
 146                                          MimeInfo       *mimeinfo);
 147 static void icon_list_clear             (MimeView       *mimeview);
 148 static void icon_list_toggle_by_mime_info (MimeView     *mimeview,
 149                                            MimeInfo     *mimeinfo);
 150 static gboolean icon_list_select_by_number(MimeView     *mimeview,
 151                                            gint          number);
 152 static void mime_toggle_button_cb       (GtkWidget      *button,
 153                                          MimeView       *mimeview);
 154 static gboolean part_button_pressed     (MimeView       *mimeview,
 155                                          GdkEventButton *event,
 156                                          MimeInfo       *partinfo);
 157 static void icon_scroll_size_allocate_cb(GtkWidget      *widget,
 158                                          GtkAllocation  *layout_size,
 159                                          MimeView       *mimeview);
 160 static MimeInfo *mimeview_get_part_to_use(MimeView *mimeview);
 161
 162 static void mimeview_launch_cb(MimeView *mimeview)
 163 {
 164         mimeview_launch(mimeview, mimeview_get_part_to_use(mimeview));
 165 }
 166 static GtkItemFactoryEntry mimeview_popup_entries[] =
 167 {
 168         {N_("/_Open"),            NULL, mimeview_launch_cb,       0, NULL},
 169         {N_("/Open _with..."),    NULL, mimeview_open_with,       0, NULL},
 170         {N_("/_Display as text"), NULL, mimeview_display_as_text, 0, NULL},
 171         {N_("/_Save as..."),      NULL, mimeview_save_as,         0, NULL},
 172         {N_("/Save _all..."),     NULL, mimeview_save_all,        0, NULL},
 173 };
 174
 175 static GtkTargetEntry mimeview_mime_types[] =
 176 {
 177         {"text/uri-list", 0, 0}
 178 };
 179
 180 GSList *mimeviewer_factories;
 181 GSList *mimeviews;
 182
 183 MimeView *mimeview_create(MainWindow *mainwin)
 184 {
 185         MimeView *mimeview;
 186
 187         GtkWidget *paned;
 188         GtkWidget *scrolledwin;
 189         GtkWidget *ctree;
 190         GtkWidget *mime_notebook;
 191         GtkWidget *popupmenu;
 192         GtkWidget *ctree_mainbox;
 193         GtkWidget *vbox;
 194         GtkWidget *mime_toggle;
 195         GtkWidget *icon_mainbox;
 196         GtkWidget *icon_scroll;
 197         GtkWidget *icon_vbox;
 198         GtkWidget *arrow;
 199         GtkWidget *scrollbutton;
 200         GtkWidget *hbox;
 201         GtkTooltips *tooltips;
 202         GtkItemFactory *popupfactory;
 203         NoticeView *siginfoview;
 204         gchar *titles[N_MIMEVIEW_COLS];
 205         gint n_entries;
 206         gint i;
 207
 208         debug_print("Creating MIME view...\n");
 209         mimeview = g_new0(MimeView, 1);
 210
 211         titles[COL_MIMETYPE] = _("MIME Type");
 212         titles[COL_SIZE]     = _("Size");
 213         titles[COL_NAME]     = _("Name");
 214
 215         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 216         gtk_widget_show(scrolledwin);
 217         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 218                                        GTK_POLICY_AUTOMATIC,
 219                                        GTK_POLICY_AUTOMATIC);
 220
 221         ctree = gtk_sctree_new_with_titles(N_MIMEVIEW_COLS, 0, titles);
 222         gtk_widget_show(ctree);
 223         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 224         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
 225         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_SIZE,
 226                                            GTK_JUSTIFY_RIGHT);
 227         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_MIMETYPE, 240);
 228         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_SIZE, 90);
 229         for (i = 0; i < N_MIMEVIEW_COLS; i++)
 230                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 231                                        GTK_CAN_FOCUS);
 232         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 233
 234         g_signal_connect(G_OBJECT(ctree), "tree_select_row",
 235                          G_CALLBACK(mimeview_selected), mimeview);
 236         g_signal_connect(G_OBJECT(ctree), "button_release_event",
 237                          G_CALLBACK(mimeview_button_pressed), mimeview);
 238         g_signal_connect(G_OBJECT(ctree), "key_press_event",
 239                          G_CALLBACK(mimeview_key_pressed), mimeview);
 240         g_signal_connect(G_OBJECT (ctree),"start_drag",
 241                          G_CALLBACK (mimeview_start_drag), mimeview);
 242         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
 243                          G_CALLBACK(mimeview_drag_data_get), mimeview);
 244
 245         mime_notebook = gtk_notebook_new();
 246         gtk_widget_show(mime_notebook);
 247         GTK_WIDGET_UNSET_FLAGS(mime_notebook, GTK_CAN_FOCUS);
 248         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(mime_notebook), FALSE);
 249         gtk_notebook_set_show_border(GTK_NOTEBOOK(mime_notebook), FALSE);
 250
 251         icon_vbox = gtk_vbox_new(FALSE, 2);
 252         gtk_widget_show(icon_vbox);
 253         icon_scroll = gtk_layout_new(NULL, NULL);
 254         gtk_widget_show(icon_scroll);
 255         gtk_layout_put(GTK_LAYOUT(icon_scroll), icon_vbox, 0, 0);
 256         scrollbutton = gtk_vscrollbutton_new(gtk_layout_get_vadjustment(GTK_LAYOUT(icon_scroll)));
 257         gtk_widget_show(scrollbutton);
 258
 259         g_signal_connect(G_OBJECT(icon_scroll), "scroll_event",
 260                          G_CALLBACK(mimeview_scrolled), mimeview);
 261
 262         mime_toggle = gtk_toggle_button_new();
 263         gtk_widget_show(mime_toggle);
 264         arrow = gtk_arrow_new(GTK_ARROW_LEFT, GTK_SHADOW_NONE);
 265         gtk_widget_show(arrow);
 266         gtk_container_add(GTK_CONTAINER(mime_toggle), arrow);
 267         g_signal_connect(G_OBJECT(mime_toggle), "toggled",
 268                          G_CALLBACK(mime_toggle_button_cb), mimeview);
 269
 270         icon_mainbox = gtk_vbox_new(FALSE, 0);
 271         gtk_widget_show(icon_mainbox);
 272         gtk_box_pack_start(GTK_BOX(icon_mainbox), mime_toggle, FALSE, FALSE, 0);
 273         gtk_box_pack_start(GTK_BOX(icon_mainbox), icon_scroll, TRUE, TRUE, 3);
 274         gtk_box_pack_end(GTK_BOX(icon_mainbox), scrollbutton, FALSE, FALSE, 0);
 275         g_signal_connect(G_OBJECT(icon_mainbox), "size_allocate",
 276                          G_CALLBACK(icon_scroll_size_allocate_cb), mimeview);
 277
 278         ctree_mainbox = gtk_hbox_new(FALSE, 0);
 279         gtk_box_pack_start(GTK_BOX(ctree_mainbox), scrolledwin, TRUE, TRUE, 0);
 280
 281         n_entries = sizeof(mimeview_popup_entries) /
 282                 sizeof(mimeview_popup_entries[0]);
 283         popupmenu = menu_create_items(mimeview_popup_entries, n_entries,
 284                                       "<MimeView>", &popupfactory, mimeview);
 285         tooltips = gtk_tooltips_new();
 286
 287         vbox = gtk_vbox_new(FALSE, 0);
 288         gtk_widget_show(vbox);
 289         siginfoview = noticeview_create(mainwin);
 290         noticeview_hide(siginfoview);
 291         noticeview_set_icon_clickable(siginfoview, TRUE);
 292         gtk_box_pack_start(GTK_BOX(vbox), mime_notebook, TRUE, TRUE, 0);
 293         gtk_box_pack_end(GTK_BOX(vbox), GTK_WIDGET_PTR(siginfoview), FALSE, FALSE, 0);
 294
 295         paned = gtk_vpaned_new();
 296         gtk_widget_show(paned);
 297         gtk_paned_set_gutter_size(GTK_PANED(paned), 0);
 298         gtk_paned_pack1(GTK_PANED(paned), ctree_mainbox, FALSE, TRUE);
 299         gtk_paned_pack2(GTK_PANED(paned), vbox, TRUE, TRUE);
 300
 301         hbox = gtk_hbox_new(FALSE, 0);
 302         gtk_box_pack_start(GTK_BOX(hbox), paned, TRUE, TRUE, 0);
 303         gtk_box_pack_start(GTK_BOX(hbox), icon_mainbox, FALSE, FALSE, 0);
 304
 305         gtk_widget_show(hbox);
 306         gtk_widget_hide(ctree_mainbox);
 307
 308         mimeview->hbox          = hbox;
 309         mimeview->paned         = paned;
 310         mimeview->scrolledwin   = scrolledwin;
 311         mimeview->ctree         = ctree;
 312         mimeview->mime_notebook = mime_notebook;
 313         mimeview->popupmenu     = popupmenu;
 314         mimeview->popupfactory  = popupfactory;
 315         mimeview->type          = -1;
 316         mimeview->ctree_mainbox = ctree_mainbox;
 317         mimeview->icon_scroll   = icon_scroll;
 318         mimeview->icon_vbox     = icon_vbox;
 319         mimeview->icon_mainbox  = icon_mainbox;
 320         mimeview->icon_count    = 0;
 321         mimeview->mainwin       = mainwin;
 322         mimeview->tooltips      = tooltips;
 323         mimeview->oldsize       = 60;
 324         mimeview->mime_toggle   = mime_toggle;
 325         mimeview->siginfoview   = siginfoview;
 326         mimeview->scrollbutton  = scrollbutton;
 327         mimeview->target_list   = gtk_target_list_new(mimeview_mime_types, 1);
 328
 329         mimeviews = g_slist_prepend(mimeviews, mimeview);
 330
 331         return mimeview;
 332 }
 333
 334 void mimeview_init(MimeView *mimeview)
 335 {
 336         textview_init(mimeview->textview);
 337
 338         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 339                 GTK_WIDGET_PTR(mimeview->textview));
 340 }
 341
 342 void mimeview_show_message(MimeView *mimeview, MimeInfo *mimeinfo,
 343                            const gchar *file)
 344 {
 345         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 346         GtkCTreeNode *node;
 347
 348         mimeview_clear(mimeview);
 349
 350         g_return_if_fail(file != NULL);
 351         g_return_if_fail(mimeinfo != NULL);
 352
 353         mimeview->mimeinfo = mimeinfo;
 354
 355         mimeview->file = g_strdup(file);
 356
 357         g_signal_handlers_block_by_func(G_OBJECT(ctree), mimeview_selected,
 358                                         mimeview);
 359
 360         icon_list_create(mimeview, mimeinfo);
 361
 362         g_signal_handlers_unblock_by_func(G_OBJECT(ctree),
 363                                           mimeview_selected, mimeview);
 364
 365         node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 366         if (node) {
 367                 gtk_ctree_select(ctree, node);
 368                 icon_list_toggle_by_mime_info
 369                         (mimeview, gtk_ctree_node_get_row_data(ctree, node));
 370                 gtkut_ctree_set_focus_row(ctree, node);
 371         }
 372 }
 373
 374 #ifdef USE_PTHREAD
 375 static void mimeview_check_sig_cancel_now(MimeView *mimeview);
 376 #endif
 377
 378 static void mimeview_free_mimeinfo(MimeView *mimeview)
 379 {
 380         gboolean defer = FALSE;
 381 #ifdef USE_PTHREAD
 382         defer = (mimeview->check_data != NULL);
 383         if (defer)
 384                 mimeview->check_data->free_after_use = TRUE;
 385 #endif
 386         if (mimeview->mimeinfo != NULL && !defer) {
 387                 procmime_mimeinfo_free_all(mimeview->mimeinfo);
 388                 mimeview->mimeinfo = NULL;
 389         } else if (defer) {
 390 #ifdef USE_PTHREAD
 391                 debug_print("deferring free(mimeinfo) and cancelling check\n");
 392                 mimeview_check_sig_cancel_now(mimeview);
 393 #endif
 394         }
 395 }
 396
 397 void mimeview_destroy(MimeView *mimeview)
 398 {
 399         GSList *cur;
 400
 401         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 402                 MimeViewer *viewer = (MimeViewer *) cur->data;
 403                 viewer->destroy_viewer(viewer);
 404         }
 405         g_slist_free(mimeview->viewers);
 406         gtk_target_list_unref(mimeview->target_list);
 407
 408         mimeview_free_mimeinfo(mimeview);
 409 #ifdef USE_PTHREAD
 410         if (mimeview->check_data) {
 411                 mimeview->check_data->destroy_mimeview = TRUE;
 412                 debug_print("deferring destroy\n");
 413         } else
 414 #endif
 415         {
 416                 g_free(mimeview->file);
 417                 g_free(mimeview);
 418                 mimeviews = g_slist_remove(mimeviews, mimeview);
 419         }
 420
 421 }
 422
 423 MimeInfo *mimeview_get_selected_part(MimeView *mimeview)
 424 {
 425         return gtk_ctree_node_get_row_data
 426                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
 427 }
 428
 429 gint mimeview_get_selected_part_num(MimeView *mimeview)
 430 {
 431         gint i = 0;
 432         GList *rows = GTK_CLIST(mimeview->ctree)->row_list;
 433         while (rows) {
 434                 if (mimeview->opened == GTK_CTREE_NODE(rows))
 435                         return i;
 436                 i++;
 437                 rows = rows->next;
 438         }
 439         return -1;
 440 }
 441
 442 void mimeview_select_part_num(MimeView *mimeview, gint i)
 443 {
 444         if (i < 0)
 445                 return;
 446         gtk_clist_unselect_all(GTK_CLIST(mimeview->ctree));
 447         gtk_clist_select_row(GTK_CLIST(mimeview->ctree), i, -1);
 448         gtkut_clist_set_focus_row(GTK_CLIST(mimeview->ctree), i);
 449 }
 450
 451 static void mimeview_set_multipart_tree(MimeView *mimeview,
 452                                         MimeInfo *mimeinfo,
 453                                         GtkCTreeNode *parent)
 454 {
 455         GtkCTreeNode *node;
 456
 457         g_return_if_fail(mimeinfo != NULL);
 458
 459         while (mimeinfo != NULL) {
 460                 node = mimeview_append_part(mimeview, mimeinfo, parent);
 461
 462                 if (mimeinfo->node->children)
 463                         mimeview_set_multipart_tree(mimeview, (MimeInfo *) mimeinfo->node->children->data, node);
 464                 mimeinfo = mimeinfo->node->next != NULL ? (MimeInfo *) mimeinfo->node->next->data : NULL;
 465         }
 466 }
 467
 468 static const gchar *get_real_part_name(MimeInfo *partinfo)
 469 {
 470         const gchar *name = NULL;
 471
 472         name = procmime_mimeinfo_get_parameter(partinfo, "filename");
 473         if (name == NULL)
 474                 name = procmime_mimeinfo_get_parameter(partinfo, "name");
 475
 476         return name;
 477 }
 478
 479 static const gchar *get_part_name(MimeInfo *partinfo)
 480 {
 481         const gchar *name;
 482
 483         name = get_real_part_name(partinfo);
 484         if (name == NULL)
 485                 name = "";
 486
 487         return name;
 488 }
 489
 490 static const gchar *get_part_description(MimeInfo *partinfo)
 491 {
 492         if (partinfo->description)
 493                 return partinfo->description;
 494         else
 495                 return get_part_name(partinfo);
 496 }
 497
 498 static GtkCTreeNode *mimeview_append_part(MimeView *mimeview,
 499                                           MimeInfo *partinfo,
 500                                           GtkCTreeNode *parent)
 501 {
 502         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 503         GtkCTreeNode *node;
 504         static gchar content_type[64];
 505         gchar *str[N_MIMEVIEW_COLS];
 506
 507         if (partinfo->type != MIMETYPE_UNKNOWN && partinfo->subtype) {
 508                 g_snprintf(content_type, 64, "%s/%s", procmime_get_media_type_str(partinfo->type), partinfo->subtype);
 509         } else {
 510                 g_snprintf(content_type, 64, "UNKNOWN");
 511         }
 512
 513         str[COL_MIMETYPE] = content_type;
 514         str[COL_SIZE] = to_human_readable(partinfo->length);
 515         if (prefs_common.attach_desc)
 516                 str[COL_NAME] = (gchar *) get_part_description(partinfo);
 517         else
 518                 str[COL_NAME] = (gchar *) get_part_name(partinfo);
 519
 520         node = gtk_sctree_insert_node(ctree, parent, NULL, str, 0,
 521                                      NULL, NULL, NULL, NULL,
 522                                      FALSE, TRUE);
 523         gtk_ctree_node_set_row_data(ctree, node, partinfo);
 524
 525         return node;
 526 }
 527
 528 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
 529 {
 530         FILE *fp;
 531         const gchar *fname;
 532
 533         if (!partinfo) return;
 534
 535         fname = mimeview->file;
 536         if (!fname) return;
 537
 538         if ((fp = g_fopen(fname, "rb")) == NULL) {
 539                 FILE_OP_ERROR(fname, "fopen");
 540                 return;
 541         }
 542
 543         if (fseek(fp, partinfo->offset, SEEK_SET) < 0) {
 544                 FILE_OP_ERROR(mimeview->file, "fseek");
 545                 fclose(fp);
 546                 return;
 547         }
 548
 549         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 550         textview_show_part(mimeview->textview, partinfo, fp);
 551
 552         fclose(fp);
 553 }
 554
 555 static MimeViewer *get_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 556 {
 557         GSList *cur;
 558         MimeViewerFactory *factory = NULL;
 559         MimeViewer *viewer = NULL;
 560
 561 /*
 562  * FNM_CASEFOLD is a GNU extension
 563  * if its not defined copy the string to the stack and
 564  * convert the copy to lower case
 565  */
 566 #ifndef FNM_CASEFOLD
 567 #define FNM_CASEFOLD 0
 568         Xstrdup_a(content_type, content_type, return NULL);
 569         g_strdown((gchar *)content_type);
 570 #endif
 571
 572         for (cur = mimeviewer_factories; cur != NULL; cur = g_slist_next(cur)) {
 573                 MimeViewerFactory *curfactory = cur->data;
 574                 gint i = 0;
 575
 576                 while (curfactory->content_types[i] != NULL) {
 577                         if(!fnmatch(curfactory->content_types[i], content_type, FNM_CASEFOLD)) {
 578                                 debug_print("%s\n", curfactory->content_types[i]);
 579                                 factory = curfactory;
 580                                 break;
 581                         }
 582                         i++;
 583                 }
 584                 if (factory != NULL)
 585                         break;
 586         }
 587         if (factory == NULL)
 588                 return NULL;
 589
 590         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 591                 MimeViewer *curviewer = cur->data;
 592
 593                 if (curviewer->factory == factory)
 594                         return curviewer;
 595         }
 596         viewer = factory->create_viewer();
 597         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 598                 GTK_WIDGET(viewer->get_widget(viewer)));
 599
 600         mimeview->viewers = g_slist_append(mimeview->viewers, viewer);
 601
 602         return viewer;
 603 }
 604
 605 static MimeViewer *get_viewer_for_mimeinfo(MimeView *mimeview, MimeInfo *partinfo)
 606 {
 607         gchar *content_type = NULL;
 608         MimeViewer *viewer = NULL;
 609
 610         if ((partinfo->type == MIMETYPE_APPLICATION) &&
 611             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
 612                 const gchar *filename;
 613
 614                 filename = procmime_mimeinfo_get_parameter(partinfo, "filename");
 615                 if (filename == NULL)
 616                         filename = procmime_mimeinfo_get_parameter(partinfo, "name");
 617                 if (filename != NULL)
 618                         content_type = procmime_get_mime_type(filename);
 619         } else {
 620                 content_type = procmime_get_content_type_str(partinfo->type, partinfo->subtype);
 621         }
 622
 623         if (content_type != NULL) {
 624                 viewer = get_viewer_for_content_type(mimeview, content_type);
 625                 g_free(content_type);
 626         }
 627
 628         return viewer;
 629 }
 630
 631 gboolean mimeview_show_part(MimeView *mimeview, MimeInfo *partinfo)
 632 {
 633         MimeViewer *viewer;
 634
 635         viewer = get_viewer_for_mimeinfo(mimeview, partinfo);
 636         if (viewer == NULL) {
 637                 if (mimeview->mimeviewer != NULL)
 638                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 639                 mimeview->mimeviewer = NULL;
 640                 return FALSE;
 641         }
 642
 643         if (mimeview->mimeviewer != NULL)
 644                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 645
 646         if (mimeview->mimeviewer != viewer) {
 647                 mimeview->mimeviewer = viewer;
 648                 mimeview_change_view_type(mimeview, MIMEVIEW_VIEWER);
 649         }
 650         viewer->mimeview = mimeview;
 651         viewer->show_mimepart(viewer, mimeview->file, partinfo);
 652
 653         return TRUE;
 654 }
 655
 656 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
 657 {
 658         TextView  *textview  = mimeview->textview;
 659         GtkWidget *focused = NULL;
 660
 661         if (mainwindow_get_mainwindow())
 662                 focused = gtkut_get_focused_child(
 663                                 GTK_CONTAINER(mainwindow_get_mainwindow()->window));
 664
 665         if ((mimeview->type != MIMEVIEW_VIEWER) &&
 666             (mimeview->type == type)) return;
 667
 668         switch (type) {
 669         case MIMEVIEW_TEXT:
 670                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 671                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 672                         GTK_WIDGET_PTR(textview)));
 673                 break;
 674         case MIMEVIEW_VIEWER:
 675                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 676                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 677                         GTK_WIDGET(mimeview->mimeviewer->get_widget(mimeview->mimeviewer))));
 678                 break;
 679         default:
 680                 return;
 681         }
 682         if (focused)
 683                 gtk_widget_grab_focus(focused);
 684         mimeview->type = type;
 685 }
 686
 687 void mimeview_clear(MimeView *mimeview)
 688 {
 689         GtkCList *clist = NULL;
 690
 691         if (!mimeview)
 692                 return;
 693
 694         if (g_slist_find(mimeviews, mimeview) == NULL)
 695                 return;
 696
 697         clist = GTK_CLIST(mimeview->ctree);
 698
 699         noticeview_hide(mimeview->siginfoview);
 700
 701         gtk_clist_clear(clist);
 702         textview_clear(mimeview->textview);
 703         if (mimeview->mimeviewer != NULL)
 704                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 705
 706         mimeview_free_mimeinfo(mimeview);
 707
 708         mimeview->mimeinfo = NULL;
 709
 710         mimeview->opened = NULL;
 711
 712         g_free(mimeview->file);
 713         mimeview->file = NULL;
 714
 715         icon_list_clear(mimeview);
 716         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 717 }
 718
 719 static void check_signature_cb(GtkWidget *widget, gpointer user_data);
 720 void mimeview_check_signature(MimeView *mimeview);
 721 static void display_full_info_cb(GtkWidget *widget, gpointer user_data);
 722
 723 static void update_signature_noticeview(MimeView *mimeview, MimeInfo *mimeinfo,
 724                                         gboolean special, SignatureStatus code)
 725 {
 726         gchar *text = NULL, *button_text = NULL;
 727         void  *func = NULL;
 728         StockPixmap icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 729         SignatureStatus mycode = SIGNATURE_UNCHECKED;
 730
 731         g_return_if_fail(mimeview != NULL);
 732         g_return_if_fail(mimeinfo != NULL);
 733
 734         if (special)
 735                 mycode = code;
 736         else
 737                 mycode = privacy_mimeinfo_get_sig_status(mimeinfo);
 738
 739         switch (mycode) {
 740         case SIGNATURE_UNCHECKED:
 741                 button_text = _("Check signature");
 742                 func = check_signature_cb;
 743                 icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 744                 break;
 745         case SIGNATURE_OK:
 746                 button_text = _("View full information");
 747                 func = display_full_info_cb;
 748                 icon = STOCK_PIXMAP_PRIVACY_PASSED;
 749                 break;
 750         case SIGNATURE_WARN:
 751                 button_text = _("View full information");
 752                 func = display_full_info_cb;
 753                 icon = STOCK_PIXMAP_PRIVACY_WARN;
 754                 break;
 755         case SIGNATURE_INVALID:
 756                 button_text = _("View full information");
 757                 func = display_full_info_cb;
 758                 icon = STOCK_PIXMAP_PRIVACY_FAILED;
 759                 break;
 760         case SIGNATURE_CHECK_FAILED:
 761                 button_text = _("Check again");
 762                 func = check_signature_cb;
 763                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 764         case SIGNATURE_CHECK_TIMEOUT:
 765                 button_text = _("Check again");
 766                 func = check_signature_cb;
 767                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 768         default:
 769                 break;
 770         }
 771         if (mycode == SIGNATURE_UNCHECKED) {
 772                 gchar *tmp = privacy_mimeinfo_sig_info_short(mimeinfo);
 773                 text = g_strdup_printf("%s %s",
 774                         tmp, _("Click the icon or hit 'C' to check it."));
 775                 g_free(tmp);
 776         } else if (mycode != SIGNATURE_CHECK_TIMEOUT) {
 777                 text = privacy_mimeinfo_sig_info_short(mimeinfo);
 778         } else if (mycode == SIGNATURE_CHECK_TIMEOUT) {
 779                 text = g_strdup(_("Timeout checking the signature. Click the icon or hit 'C' to try again."));
 780         }
 781
 782         noticeview_set_text(mimeview->siginfoview, text);
 783         gtk_label_set_selectable(GTK_LABEL(mimeview->siginfoview->text), TRUE);
 784
 785         g_free(text);
 786         noticeview_set_button_text(mimeview->siginfoview, NULL);
 787         noticeview_set_button_press_callback(
 788                 mimeview->siginfoview,
 789                 G_CALLBACK(func),
 790                 (gpointer) mimeview);
 791         noticeview_set_icon(mimeview->siginfoview, icon);
 792         noticeview_set_tooltip(mimeview->siginfoview, button_text);
 793 }
 794
 795 #ifdef USE_PTHREAD
 796
 797 /* reset all thread stuff, and do the cleanups we've been left to do */
 798 static void mimeview_check_data_reset(MimeView *mimeview)
 799 {
 800         if (!mimeview->check_data)
 801                 return;
 802
 803         if (mimeview->check_data->free_after_use) {
 804                 debug_print("freeing deferred mimeinfo\n");
 805                 procmime_mimeinfo_free_all(mimeview->check_data->siginfo);
 806         }
 807         if (mimeview->check_data->destroy_mimeview) {
 808                 debug_print("freeing deferred mimeview\n");
 809                 g_free(mimeview->file);
 810                 g_free(mimeview);
 811                 mimeviews = g_slist_remove(mimeviews, mimeview);
 812         }
 813
 814         g_free(mimeview->check_data);
 815         mimeview->check_data = NULL;
 816 }
 817
 818 /* GUI update once the checker thread is done or killed */
 819 static gboolean mimeview_check_sig_thread_cb(void *data)
 820 {
 821         MimeView *mimeview = (MimeView *) data;
 822         MimeInfo *mimeinfo = mimeview->siginfo;
 823
 824         debug_print("mimeview_check_sig_thread_cb\n");
 825
 826         if (mimeinfo == NULL) {
 827                 /* message changed !? */
 828                 g_warning("no more siginfo!\n");
 829                 goto end;
 830         }
 831
 832         if (!mimeview->check_data) {
 833                 g_warning("nothing to check\n");
 834                 return FALSE;
 835         }
 836
 837         if (mimeview->check_data->siginfo != mimeinfo) {
 838                 /* message changed !? */
 839                 g_warning("different siginfo!\n");
 840                 goto end;
 841         }
 842
 843         if (mimeview->check_data->destroy_mimeview ||
 844             mimeview->check_data->free_after_use) {
 845                 debug_print("not bothering, we're changing message\n");
 846                 goto end;
 847         }
 848
 849         /* update status */
 850         if (mimeview->check_data->timeout)
 851                 update_signature_noticeview(mimeview, mimeview->siginfo,
 852                         TRUE, SIGNATURE_CHECK_TIMEOUT);
 853         else
 854                 update_signature_noticeview(mimeview, mimeview->siginfo,
 855                         FALSE, 0);
 856         icon_list_clear(mimeview);
 857         icon_list_create(mimeview, mimeview->mimeinfo);
 858
 859 end:
 860         mimeview_check_data_reset(mimeview);
 861         return FALSE;
 862 }
 863
 864 /* sig checker thread */
 865 static void *mimeview_check_sig_worker_thread(void *data)
 866 {
 867         MimeView *mimeview = (MimeView *)data;
 868         MimeInfo *mimeinfo = mimeview->siginfo;
 869
 870         debug_print("checking...\n");
 871
 872         if (!mimeview->check_data)
 873                 return NULL;
 874
 875         if (mimeinfo && mimeinfo == mimeview->check_data->siginfo)
 876                 privacy_mimeinfo_check_signature(mimeinfo);
 877         else {
 878                 /* that's strange! we changed message without
 879                  * getting killed. */
 880                 g_warning("different siginfo!\n");
 881                 mimeview_check_data_reset(mimeview);
 882                 return NULL;
 883         }
 884
 885         /* use g_timeout so that GUI updates is done from the
 886          * correct thread */
 887         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 888
 889         return NULL;
 890 }
 891
 892 /* killer thread - acts when the checker didn't work fast
 893  * enough. */
 894 static void *mimeview_check_sig_cancel_thread(void *data)
 895 {
 896         MimeView *mimeview = (MimeView *)data;
 897
 898         if (!mimeview->check_data)
 899                 return NULL; /* nothing to kill ! */
 900
 901         /* wait for a few seconds... */
 902         debug_print("waiting a while\n");
 903
 904         sleep(5);
 905
 906         if (!mimeview->check_data)
 907                 return NULL; /* nothing to kill, it's done in time :) */
 908
 909         /* too late, go away checker thread */
 910         debug_print("killing checker thread\n");
 911         pthread_cancel(mimeview->check_data->th);
 912
 913         /* tell upstream it was a timeout */
 914         mimeview->check_data->timeout = TRUE;
 915         /* use g_timeout so that GUI updates is done from the
 916          * correct thread */
 917         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
 918
 919         return NULL;
 920 }
 921
 922 /* get rid of the checker thread right now - used when changing the
 923  * displayed message for example. */
 924 static void mimeview_check_sig_cancel_now(MimeView *mimeview)
 925 {
 926         if (!mimeview->check_data)
 927                 return;
 928         debug_print("killing checker thread NOW\n");
 929         pthread_cancel(mimeview->check_data->th);
 930
 931         /* tell upstream it was a timeout */
 932         mimeview->check_data->timeout = TRUE;
 933         mimeview_check_sig_thread_cb(mimeview);
 934         return;
 935 }
 936
 937 /* creates a thread to check the signature, and a second one
 938  * to kill the first one after a timeout */
 939 static void mimeview_check_sig_in_thread(MimeView *mimeview)
 940 {
 941         pthread_t th, th2;
 942         pthread_attr_t detach, detach2;
 943
 944         if (mimeview->check_data) {
 945                 g_warning("already checking it");
 946                 return;
 947         }
 948
 949         mimeview->check_data = g_new0(SigCheckData, 1);
 950         mimeview->check_data->siginfo = mimeview->siginfo;
 951         debug_print("creating thread\n");
 952
 953         pthread_attr_init(&detach);
 954         pthread_attr_setdetachstate(&detach, TRUE);
 955
 956         pthread_attr_init(&detach2);
 957         pthread_attr_setdetachstate(&detach2, TRUE);
 958
 959         /* create the checker thread */
 960         if (pthread_create(&th, &detach,
 961                         mimeview_check_sig_worker_thread,
 962                         mimeview) != 0) {
 963                 /* arh. We'll do it synchronously. */
 964                 g_warning("can't create thread");
 965                 g_free(mimeview->check_data);
 966                 mimeview->check_data = NULL;
 967                 return;
 968         } else
 969                 mimeview->check_data->th = th;
 970
 971         /* create the killer thread */
 972         pthread_create(&th2, &detach2,
 973                         mimeview_check_sig_cancel_thread,
 974                         mimeview);
 975 }
 976 #endif
 977
 978 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
 979 {
 980         MimeView *mimeview = (MimeView *) user_data;
 981         MimeInfo *mimeinfo = mimeview->siginfo;
 982
 983         if (mimeinfo == NULL)
 984                 return;
 985 #ifdef USE_PTHREAD
 986         if (mimeview->check_data)
 987                 return;
 988 #endif
 989         noticeview_set_text(mimeview->siginfoview, _("Checking signature..."));
 990         GTK_EVENTS_FLUSH();
 991 #if (defined USE_PTHREAD && defined __GLIBC__ && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)))
 992         /* let's do it non-blocking */
 993         mimeview_check_sig_in_thread(mimeview);
 994         if (!mimeview->check_data) /* let's check syncronously */
 995 #endif
 996         {
 997                 debug_print("checking without thread\n");
 998                 privacy_mimeinfo_check_signature(mimeinfo);
 999                 update_signature_noticeview(mimeview, mimeview->siginfo, FALSE, 0);
1000                 icon_list_clear(mimeview);
1001                 icon_list_create(mimeview, mimeview->mimeinfo);
1002         }
1003 }
1004
1005 void mimeview_check_signature(MimeView *mimeview)
1006 {
1007         check_signature_cb(NULL, mimeview);
1008 }
1009
1010 static void redisplay_email(GtkWidget *widget, gpointer user_data)
1011 {
1012         MimeView *mimeview = (MimeView *) user_data;
1013         GtkCTreeNode *node = mimeview->opened;
1014         mimeview->opened = NULL;
1015         mimeview_selected(GTK_CTREE(mimeview->ctree), node, 0, mimeview);
1016 }
1017
1018 static void display_full_info_cb(GtkWidget *widget, gpointer user_data)
1019 {
1020         MimeView *mimeview = (MimeView *) user_data;
1021         gchar *siginfo;
1022
1023         siginfo = privacy_mimeinfo_sig_info_full(mimeview->siginfo);
1024         textview_set_text(mimeview->textview, siginfo);
1025         g_free(siginfo);
1026         noticeview_set_button_text(mimeview->siginfoview, NULL);
1027         noticeview_set_button_press_callback(
1028                 mimeview->siginfoview,
1029                 G_CALLBACK(redisplay_email),
1030                 (gpointer) mimeview);
1031         noticeview_set_tooltip(mimeview->siginfoview, _("Go back to email"));
1032 }
1033
1034 static void update_signature_info(MimeView *mimeview, MimeInfo *selected)
1035 {
1036         MimeInfo *siginfo;
1037         MimeInfo *first_text;
1038
1039         g_return_if_fail(mimeview != NULL);
1040         g_return_if_fail(selected != NULL);
1041
1042         if (selected->type == MIMETYPE_MESSAGE
1043         &&  !g_ascii_strcasecmp(selected->subtype, "rfc822")) {
1044                 /* if the first text part is signed, check that */
1045                 first_text = selected;
1046                 while (first_text && first_text->type != MIMETYPE_TEXT) {
1047                         first_text = procmime_mimeinfo_next(first_text);
1048                 }
1049                 if (first_text) {
1050                         update_signature_info(mimeview, first_text);
1051                         return;
1052                 }
1053         }
1054
1055         siginfo = selected;
1056         while (siginfo != NULL) {
1057                 if (privacy_mimeinfo_is_signed(siginfo))
1058                         break;
1059                 siginfo = procmime_mimeinfo_parent(siginfo);
1060         }
1061         mimeview->siginfo = siginfo;
1062
1063         if (siginfo == NULL) {
1064                 noticeview_hide(mimeview->siginfoview);
1065                 return;
1066         }
1067
1068         update_signature_noticeview(mimeview, siginfo, FALSE, 0);
1069         noticeview_show(mimeview->siginfoview);
1070 }
1071
1072 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
1073                               MimeView *mimeview)
1074 {
1075         MimeInfo *partinfo;
1076         if (mimeview->opened == node) return;
1077         mimeview->opened = node;
1078         mimeview->spec_part = NULL;
1079         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
1080
1081         partinfo = gtk_ctree_node_get_row_data(ctree, node);
1082         if (!partinfo) return;
1083
1084         /* ungrab the mouse event */
1085         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1086                 gtk_grab_remove(GTK_WIDGET(ctree));
1087                 if (gdk_pointer_is_grabbed())
1088                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1089         }
1090
1091         mimeview->textview->default_text = FALSE;
1092
1093         update_signature_info(mimeview, partinfo);
1094
1095         if (!mimeview_show_part(mimeview, partinfo)) {
1096                 switch (partinfo->type) {
1097                 case MIMETYPE_TEXT:
1098                 case MIMETYPE_MESSAGE:
1099                 case MIMETYPE_MULTIPART:
1100                         mimeview_show_message_part(mimeview, partinfo);
1101
1102                         break;
1103                 default:
1104                         mimeview->textview->default_text = TRUE;
1105                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1106                         textview_clear(mimeview->textview);
1107                         textview_show_mime_part(mimeview->textview, partinfo);
1108                         break;
1109                 }
1110         }
1111 }
1112
1113 static void mimeview_start_drag(GtkWidget *widget, gint button,
1114                                 GdkEvent *event, MimeView *mimeview)
1115 {
1116         GdkDragContext *context;
1117         MimeInfo *partinfo;
1118
1119         g_return_if_fail(mimeview != NULL);
1120
1121         partinfo = mimeview_get_selected_part(mimeview);
1122         if (partinfo->disposition == DISPOSITIONTYPE_INLINE) return;
1123
1124         context = gtk_drag_begin(widget, mimeview->target_list,
1125                                  GDK_ACTION_COPY, button, event);
1126         gtk_drag_set_icon_default(context);
1127 }
1128
1129 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
1130                                     MimeView *mimeview)
1131 {
1132         GtkCList *clist = GTK_CLIST(widget);
1133         gint row, column;
1134
1135         if (!event) return FALSE;
1136
1137         if (event->button == 2 || event->button == 3) {
1138                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1139                                                   &row, &column))
1140                         return FALSE;
1141                 gtk_clist_unselect_all(clist);
1142                 gtk_clist_select_row(clist, row, column);
1143                 gtkut_clist_set_focus_row(clist, row);
1144         }
1145         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
1146
1147         return FALSE;
1148 }
1149
1150 static gboolean mimeview_scrolled(GtkWidget *widget, GdkEventScroll *event,
1151                                     MimeView *mimeview)
1152 {
1153         GtkVScrollbutton *scrollbutton = (GtkVScrollbutton *)mimeview->scrollbutton;
1154         if (event->direction == GDK_SCROLL_UP) {
1155                 scrollbutton->scroll_type = GTK_SCROLL_STEP_BACKWARD;
1156         } else {
1157                 scrollbutton->scroll_type = GTK_SCROLL_STEP_FORWARD;
1158         }
1159         gtk_vscrollbutton_scroll(scrollbutton);
1160         return TRUE;
1161 }
1162
1163 /* from gdkevents.c */
1164 #define DOUBLE_CLICK_TIME 250
1165
1166 static gboolean part_button_pressed(MimeView *mimeview, GdkEventButton *event,
1167                                     MimeInfo *partinfo)
1168 {
1169         static MimeInfo *lastinfo;
1170         static guint32 lasttime;
1171
1172         if (event->button == 2 ||
1173             (event->button == 1 && (event->time - lasttime) < DOUBLE_CLICK_TIME && lastinfo == partinfo)) {
1174                 /* call external program for image, audio or html */
1175                 mimeview_launch(mimeview, partinfo);
1176                 return TRUE;
1177         } else if (event->button == 3) {
1178                 if (partinfo && (partinfo->type == MIMETYPE_MESSAGE ||
1179                                  partinfo->type == MIMETYPE_IMAGE ||
1180                                  partinfo->type == MIMETYPE_MULTIPART))
1181                         menu_set_sensitive(mimeview->popupfactory,
1182                                            "/Display as text", FALSE);
1183                 else
1184                         menu_set_sensitive(mimeview->popupfactory,
1185                                            "/Display as text", TRUE);
1186                 if (partinfo &&
1187                     partinfo->type == MIMETYPE_APPLICATION &&
1188                     !g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))
1189                         menu_set_sensitive(mimeview->popupfactory,
1190                                            "/Open", FALSE);
1191                 else
1192                         menu_set_sensitive(mimeview->popupfactory,
1193                                            "/Open", TRUE);
1194
1195                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1196                                   "pop_partinfo", partinfo);
1197
1198                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
1199                                NULL, NULL, NULL, NULL,
1200                                event->button, event->time);
1201                 return TRUE;
1202         }
1203
1204         lastinfo = partinfo;
1205         lasttime = event->time;
1206         return FALSE;
1207 }
1208
1209
1210 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
1211 {
1212         mimeview_key_pressed(mimeview->ctree, event, mimeview);
1213 }
1214
1215 #define BREAK_ON_MODIFIER_KEY() \
1216         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1217
1218 #define KEY_PRESS_EVENT_STOP() \
1219         g_signal_stop_emission_by_name(G_OBJECT(ctree), \
1220                                        "key_press_event");
1221
1222 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1223                                  MimeView *mimeview)
1224 {
1225         SummaryView *summaryview;
1226         GtkCTree *ctree = GTK_CTREE(widget);
1227         GtkCTreeNode *node;
1228
1229         if (!event) return FALSE;
1230         if (!mimeview->opened) return FALSE;
1231
1232         summaryview = mimeview->messageview->mainwin->summaryview;
1233
1234         if (summaryview && quicksearch_has_focus(summaryview->quicksearch))
1235                 return FALSE;
1236
1237         switch (event->keyval) {
1238         case GDK_space:
1239                 if (mimeview_scroll_page(mimeview, FALSE))
1240                         return TRUE;
1241
1242                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
1243                 if (node) {
1244                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
1245                         gtk_sctree_select(GTK_SCTREE(ctree), node);
1246                         return TRUE;
1247                 }
1248                 break;
1249         case GDK_BackSpace:
1250                 mimeview_scroll_page(mimeview, TRUE);
1251                 return TRUE;
1252         case GDK_Return:
1253                 mimeview_scroll_one_line(mimeview,
1254                                          (event->state & GDK_MOD1_MASK) != 0);
1255                 return TRUE;
1256         case GDK_n:
1257         case GDK_N:
1258                 BREAK_ON_MODIFIER_KEY();
1259                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
1260                 KEY_PRESS_EVENT_STOP();
1261                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1262                                         GTK_SCROLL_STEP_FORWARD, 0.0);
1263                 return TRUE;
1264         case GDK_p:
1265         case GDK_P:
1266                 BREAK_ON_MODIFIER_KEY();
1267                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
1268                 KEY_PRESS_EVENT_STOP();
1269                 g_signal_emit_by_name(G_OBJECT(ctree), "scroll_vertical",
1270                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
1271                 return TRUE;
1272         case GDK_y:
1273                 BREAK_ON_MODIFIER_KEY();
1274                 KEY_PRESS_EVENT_STOP();
1275                 mimeview_save_as(mimeview);
1276                 return TRUE;
1277         case GDK_t:
1278                 BREAK_ON_MODIFIER_KEY();
1279                 KEY_PRESS_EVENT_STOP();
1280                 mimeview_display_as_text(mimeview);
1281                 return TRUE;
1282         case GDK_l:
1283                 BREAK_ON_MODIFIER_KEY();
1284                 KEY_PRESS_EVENT_STOP();
1285                 mimeview_launch(mimeview, NULL);
1286                 return TRUE;
1287         case GDK_o:
1288                 BREAK_ON_MODIFIER_KEY();
1289                 KEY_PRESS_EVENT_STOP();
1290                 mimeview_open_with(mimeview);
1291                 return TRUE;
1292         case GDK_c:
1293                 BREAK_ON_MODIFIER_KEY();
1294                 KEY_PRESS_EVENT_STOP();
1295                 mimeview_check_signature(mimeview);
1296                 return TRUE;
1297         default:
1298                 break;
1299         }
1300
1301         if (!mimeview->messageview->mainwin) return FALSE;
1302
1303         summary_pass_key_press_event(summaryview, event);
1304         return TRUE;
1305 }
1306
1307 static void mimeview_drag_data_get(GtkWidget        *widget,
1308                                    GdkDragContext   *drag_context,
1309                                    GtkSelectionData *selection_data,
1310                                    guint             info,
1311                                    guint             time,
1312                                    MimeView         *mimeview)
1313 {
1314         gchar *filename = NULL, *uriname, *tmp;
1315         MimeInfo *partinfo;
1316
1317         if (!mimeview->opened) return;
1318         if (!mimeview->file) return;
1319
1320         partinfo = mimeview_get_selected_part(mimeview);
1321         if (!partinfo) return;
1322
1323         if (strlen(get_part_name(partinfo)) > 0) {
1324                 filename = g_path_get_basename(get_part_name(partinfo));
1325                 if (*filename == '\0') return;
1326         } else if (partinfo->type == MIMETYPE_MESSAGE
1327                    && !g_ascii_strcasecmp(partinfo->subtype, "rfc822")) {
1328                 gchar *name = NULL;
1329                 GPtrArray *headers = NULL;
1330                 FILE *fp;
1331
1332                 fp = g_fopen(partinfo->data.filename, "rb");
1333                 fseek(fp, partinfo->offset, SEEK_SET);
1334                 headers = procheader_get_header_array_asis(fp);
1335                 if (headers) {
1336                         gint i;
1337                         for (i = 0; i < headers->len; i++) {
1338                                 Header *header = g_ptr_array_index(headers, i);
1339                                 if (procheader_headername_equal(header->name, "Subject")) {
1340                                         unfold_line(header->body);
1341                                         name = g_strconcat(header->body, ".txt", NULL);
1342                                         subst_for_filename(name);
1343                                 }
1344                         }
1345                         procheader_header_array_destroy(headers);
1346                 }
1347                 fclose(fp);
1348                 if (name)
1349                         filename = g_path_get_basename(name);
1350                 g_free(name);
1351         }
1352         if (filename == NULL)
1353                 filename = g_path_get_basename("Unnamed part");
1354
1355
1356         tmp = g_filename_from_utf8(filename, -1, NULL, NULL, NULL);
1357
1358         if (tmp == NULL) {
1359                 g_warning("filename not in UTF-8");
1360                 tmp = g_strdup("Unnamed part");
1361         }
1362         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1363                                tmp, NULL);
1364
1365         g_free(tmp);
1366
1367         if (procmime_get_part(filename, partinfo) < 0)
1368                 alertpanel_error
1369                         (_("Couldn't save the part of multipart message."));
1370         uriname = g_strconcat("file://", filename, "\r\n", NULL);
1371
1372         gtk_selection_data_set(selection_data, selection_data->target, 8,
1373                                (guchar *)uriname, strlen(uriname));
1374
1375         g_free(uriname);
1376         g_free(filename);
1377 }
1378
1379 /**
1380  * Returns a filename (with path) for an attachment
1381  * \param partinfo The attachment to save
1382  * \param basedir The target directory
1383  * \param number Used for dummy filename if attachment is unnamed
1384  */
1385 gchar *mimeview_get_filename_for_part(MimeInfo *partinfo,
1386                                       const gchar *basedir,
1387                                       gint number)
1388 {
1389         gchar *fullname;
1390         gchar *filename;
1391
1392         filename = g_strdup(get_part_name(partinfo));
1393         if (!filename || !*filename)
1394                 filename = g_strdup_printf("noname.%d", number);
1395
1396         if (!g_utf8_validate(filename, -1, NULL)) {
1397                 gchar *tmp = conv_filename_to_utf8(filename);
1398                 g_free(filename);
1399                 filename = tmp;
1400         }
1401
1402         subst_for_filename(filename);
1403
1404         fullname = g_strconcat
1405                 (basedir, G_DIR_SEPARATOR_S, (filename[0] == G_DIR_SEPARATOR)
1406                  ? &filename[1] : filename, NULL);
1407
1408         g_free(filename);
1409         filename = conv_filename_from_utf8(fullname);
1410         g_free(fullname);
1411         return filename;
1412 }
1413
1414 /**
1415  * Write a single attachment to file
1416  * \param filename Filename with path
1417  * \param partinfo Attachment to save
1418  */
1419 static gboolean mimeview_write_part(const gchar *filename,
1420                                     MimeInfo *partinfo)
1421 {
1422         gchar *dir;
1423
1424         dir= g_path_get_dirname(filename);
1425         if (!is_dir_exist(dir))
1426                 make_dir_hier(dir);
1427         g_free(dir);
1428
1429         if (is_file_exist(filename)) {
1430                 AlertValue aval;
1431                 gchar *res;
1432                 gchar *tmp;
1433
1434                 if (!g_utf8_validate(filename, -1, NULL))
1435                         tmp = conv_filename_to_utf8(filename);
1436                 else
1437                         tmp = g_strdup(filename);
1438
1439                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1440                                       tmp);
1441                 g_free(tmp);
1442                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
1443                                   GTK_STOCK_OK, NULL);
1444                 g_free(res);
1445                 if (G_ALERTALTERNATE != aval) return FALSE;
1446         }
1447
1448         if (procmime_get_part(filename, partinfo) < 0) {
1449                 alertpanel_error
1450                         (_("Couldn't save the part of multipart message."));
1451                 return FALSE;
1452         }
1453
1454         return TRUE;
1455 }
1456
1457 /**
1458  * Menu callback: Save all attached files
1459  * \param mimeview Current display
1460  */
1461 static void mimeview_save_all(MimeView *mimeview)
1462 {
1463         MimeInfo *partinfo;
1464         gchar *dirname;
1465         gchar *startdir = NULL;
1466         gint number = 1;
1467
1468         if (!mimeview->opened) return;
1469         if (!mimeview->file) return;
1470         if (!mimeview->mimeinfo) return;
1471
1472         partinfo = mimeview->mimeinfo;
1473         if (prefs_common.attach_save_dir)
1474                 startdir = g_strconcat(prefs_common.attach_save_dir,
1475                                        G_DIR_SEPARATOR_S, NULL);
1476
1477         dirname = filesel_select_file_save_folder(_("Select destination folder"), startdir);
1478         if (!dirname) {
1479                 g_free(startdir);
1480                 return;
1481         }
1482
1483         if (!is_dir_exist (dirname)) {
1484                 alertpanel_error(_("'%s' is not a directory."),
1485                                  dirname);
1486                 g_free(startdir);
1487                 return;
1488         }
1489
1490         if (dirname[strlen(dirname)-1] == G_DIR_SEPARATOR)
1491                 dirname[strlen(dirname)-1] = '\0';
1492
1493         /* Skip the first part, that is sometimes DISPOSITIONTYPE_UNKNOWN */
1494         if (partinfo && partinfo->type == MIMETYPE_MESSAGE)
1495                 partinfo = procmime_mimeinfo_next(partinfo);
1496         if (partinfo && partinfo->type == MIMETYPE_MULTIPART) {
1497                 partinfo = procmime_mimeinfo_next(partinfo);
1498                 if (partinfo && partinfo->type == MIMETYPE_TEXT)
1499                         partinfo = procmime_mimeinfo_next(partinfo);
1500         }
1501
1502         while (partinfo != NULL) {
1503                 if (partinfo->type != MIMETYPE_MESSAGE &&
1504                     partinfo->type != MIMETYPE_MULTIPART &&
1505                     (partinfo->disposition != DISPOSITIONTYPE_INLINE
1506                      || get_real_part_name(partinfo) != NULL)) {
1507                         gchar *filename = mimeview_get_filename_for_part
1508                                 (partinfo, dirname, number++);
1509
1510                         mimeview_write_part(filename, partinfo);
1511                         g_free(filename);
1512                 }
1513                 partinfo = procmime_mimeinfo_next(partinfo);
1514         }
1515
1516         g_free(prefs_common.attach_save_dir);
1517         g_free(startdir);
1518         prefs_common.attach_save_dir = g_filename_to_utf8(dirname,
1519                                         -1, NULL, NULL, NULL);
1520 }
1521
1522 static MimeInfo *mimeview_get_part_to_use(MimeView *mimeview)
1523 {
1524         MimeInfo *partinfo = NULL;
1525         if (mimeview->spec_part) {
1526                 partinfo = mimeview->spec_part;
1527                 mimeview->spec_part = NULL;
1528         } else {
1529                 partinfo = (MimeInfo *) g_object_get_data
1530                          (G_OBJECT(mimeview->popupmenu),
1531                          "pop_partinfo");
1532                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1533                                   "pop_partinfo", NULL);
1534                 if (!partinfo) {
1535                         partinfo = mimeview_get_selected_part(mimeview);
1536                 }
1537         }
1538
1539         return partinfo;
1540 }
1541 /**
1542  * Menu callback: Save the selected attachment
1543  * \param mimeview Current display
1544  */
1545 static void mimeview_save_as(MimeView *mimeview)
1546 {
1547         gchar *filename;
1548         gchar *filepath = NULL;
1549         gchar *filedir = NULL;
1550         MimeInfo *partinfo;
1551         gchar *partname = NULL;
1552
1553         if (!mimeview->opened) return;
1554         if (!mimeview->file) return;
1555
1556         partinfo = mimeview_get_part_to_use(mimeview);
1557
1558         g_return_if_fail(partinfo != NULL);
1559
1560         if (get_part_name(partinfo) == NULL) {
1561                 return;
1562         }
1563         partname = g_strdup(get_part_name(partinfo));
1564
1565         if (!g_utf8_validate(partname, -1, NULL)) {
1566                 gchar *tmp = conv_filename_to_utf8(partname);
1567                 g_free(partname);
1568                 partname = tmp;
1569         }
1570
1571         subst_for_filename(partname);
1572
1573         if (prefs_common.attach_save_dir)
1574                 filepath = g_strconcat(prefs_common.attach_save_dir,
1575                                        G_DIR_SEPARATOR_S, partname, NULL);
1576         else
1577                 filepath = g_strdup(partname);
1578
1579         g_free(partname);
1580
1581         filename = filesel_select_file_save(_("Save as"), filepath);
1582         if (!filename) {
1583                 g_free(filepath);
1584                 return;
1585         }
1586
1587         mimeview_write_part(filename, partinfo);
1588
1589         filedir = g_path_get_dirname(filename);
1590         if (filedir && strcmp(filedir, ".")) {
1591                 g_free(prefs_common.attach_save_dir);
1592                 prefs_common.attach_save_dir = g_filename_to_utf8(filedir, -1, NULL, NULL, NULL);
1593         }
1594
1595         g_free(filedir);
1596         g_free(filepath);
1597 }
1598
1599 static void mimeview_display_as_text(MimeView *mimeview)
1600 {
1601         MimeInfo *partinfo;
1602
1603         if (!mimeview->opened) return;
1604
1605         partinfo = mimeview_get_part_to_use(mimeview);
1606         mimeview_select_mimepart_icon(mimeview, partinfo);
1607         g_return_if_fail(partinfo != NULL);
1608         mimeview_show_message_part(mimeview, partinfo);
1609 }
1610
1611 static void mimeview_launch(MimeView *mimeview, MimeInfo *partinfo)
1612 {
1613         gchar *filename;
1614
1615         if (!mimeview->opened) return;
1616         if (!mimeview->file) return;
1617
1618         if (!partinfo)
1619                 partinfo = mimeview_get_part_to_use(mimeview);
1620
1621         g_return_if_fail(partinfo != NULL);
1622
1623         filename = procmime_get_tmp_file_name(partinfo);
1624
1625         if (procmime_get_part(filename, partinfo) < 0)
1626                 alertpanel_error
1627                         (_("Couldn't save the part of multipart message."));
1628         else
1629                 mimeview_view_file(filename, partinfo, NULL, mimeview);
1630
1631         g_free(filename);
1632 }
1633
1634 static void mimeview_open_with(MimeView *mimeview)
1635 {
1636         MimeInfo *partinfo;
1637
1638         if (!mimeview) return;
1639         if (!mimeview->opened) return;
1640         if (!mimeview->file) return;
1641
1642         partinfo = mimeview_get_part_to_use(mimeview);
1643
1644         mimeview_open_part_with(mimeview, partinfo, FALSE);
1645 }
1646
1647 static void mimeview_open_part_with(MimeView *mimeview, MimeInfo *partinfo, gboolean automatic)
1648 {
1649         gchar *filename;
1650         gchar *cmd;
1651         gchar *mime_command = NULL;
1652         gchar *content_type = NULL;
1653
1654         g_return_if_fail(partinfo != NULL);
1655
1656         filename = procmime_get_tmp_file_name(partinfo);
1657
1658         if (procmime_get_part(filename, partinfo) < 0) {
1659                 alertpanel_error
1660                         (_("Couldn't save the part of multipart message."));
1661                 g_free(filename);
1662                 return;
1663         }
1664
1665         if (!prefs_common.mime_open_cmd_history)
1666                 prefs_common.mime_open_cmd_history =
1667                         add_history(NULL, prefs_common.mime_open_cmd);
1668
1669         if ((partinfo->type == MIMETYPE_APPLICATION) &&
1670             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
1671                 /* guess content-type from filename */
1672                 content_type = procmime_get_mime_type(filename);
1673         }
1674         if (content_type == NULL) {
1675                 content_type = procmime_get_content_type_str(partinfo->type,
1676                         partinfo->subtype);
1677         }
1678
1679         if ((partinfo->type == MIMETYPE_TEXT && !strcmp(partinfo->subtype, "html"))
1680         && prefs_common.uri_cmd && prefs_common.uri_cmd[0]) {
1681                 mime_command = g_strdup(prefs_common.uri_cmd);
1682                 g_free(content_type);
1683                 content_type = NULL;
1684         } else if (partinfo->type != MIMETYPE_TEXT || !prefs_common.ext_editor_cmd
1685         ||  !prefs_common.ext_editor_cmd[0]) {
1686                 mime_command = mailcap_get_command_for_type(content_type, filename);
1687         } else {
1688                 mime_command = g_strdup(prefs_common.ext_editor_cmd);
1689                 g_free(content_type);
1690                 content_type = NULL;
1691         }
1692         if (mime_command == NULL) {
1693                 /* try with extension this time */
1694                 g_free(content_type);
1695                 content_type = procmime_get_mime_type(filename);
1696                 mime_command = mailcap_get_command_for_type(content_type, filename);
1697         }
1698
1699         if (mime_command == NULL)
1700                 automatic = FALSE;
1701
1702         if (!automatic) {
1703                 gboolean remember = FALSE;
1704                 if (content_type != NULL)
1705                         cmd = input_dialog_combo_remember
1706                                 (_("Open with"),
1707                                  _("Enter the command line to open file:\n"
1708                                    "('%s' will be replaced with file name)"),
1709                                  mime_command ? mime_command : prefs_common.mime_open_cmd,
1710                                  prefs_common.mime_open_cmd_history,
1711                                  TRUE, &remember);
1712                 else
1713                         cmd = input_dialog_combo
1714                                 (_("Open with"),
1715                                  _("Enter the command line to open file:\n"
1716                                    "('%s' will be replaced with file name)"),
1717                                  mime_command ? mime_command : prefs_common.mime_open_cmd,
1718                                  prefs_common.mime_open_cmd_history,
1719                                  TRUE);
1720                 if (cmd && remember) {
1721                         mailcap_update_default(content_type, cmd);
1722                 }
1723                 g_free(mime_command);
1724         } else {
1725                 cmd = mime_command;
1726         }
1727         if (cmd) {
1728                 mimeview_view_file(filename, partinfo, cmd, mimeview);
1729                 g_free(prefs_common.mime_open_cmd);
1730                 prefs_common.mime_open_cmd = cmd;
1731                 prefs_common.mime_open_cmd_history =
1732                         add_history(prefs_common.mime_open_cmd_history, cmd);
1733         }
1734         g_free(content_type);
1735         g_free(filename);
1736 }
1737
1738 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1739                                const gchar *cmd, MimeView *mimeview)
1740 {
1741         gchar *p;
1742         gchar buf[BUFFSIZE];
1743         if (cmd == NULL)
1744                 mimeview_open_part_with(mimeview, partinfo, TRUE);
1745         else {
1746                 if ((p = strchr(cmd, '%')) && *(p + 1) == 's' &&
1747                     !strchr(p + 2, '%'))
1748                         g_snprintf(buf, sizeof(buf), cmd, filename);
1749                 else {
1750                         g_warning("MIME viewer command line is invalid: '%s'", cmd);
1751                         mimeview_open_part_with(mimeview, partinfo, FALSE);
1752                 }
1753                 if (execute_command_line(buf, TRUE) != 0)
1754                         mimeview_open_part_with(mimeview, partinfo, FALSE);
1755         }
1756 }
1757
1758 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1759 {
1760         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1761 }
1762
1763 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1764 {
1765         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1766 }
1767
1768 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1769 {
1770         GSList *mimeview_list, *viewer_list;
1771
1772         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1773                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1774
1775                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1776                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1777                         mimeview->mimeviewer = NULL;
1778                 }
1779
1780                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1781                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1782
1783                         mimeviewer->destroy_viewer(mimeviewer);
1784                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1785                 }
1786         }
1787
1788         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1789 }
1790
1791 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1792 {
1793         gint      num;
1794         MimeInfo *partinfo;
1795
1796         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1797         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1798
1799         if (event->button == 1) {
1800                 icon_selected(mimeview, num, partinfo);
1801                 gtk_widget_grab_focus(button);
1802                 if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1803                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1804                 }
1805         }
1806         part_button_pressed(mimeview, event, partinfo);
1807
1808         return FALSE;
1809 }
1810
1811 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
1812 {
1813         GtkCTreeNode *node;
1814         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1815
1816         if (node)
1817                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1818 }
1819
1820 void mimeview_select_mimepart_icon(MimeView *mimeview, MimeInfo *partinfo)
1821 {
1822         icon_list_toggle_by_mime_info(mimeview, partinfo);
1823         icon_selected(mimeview, -1, partinfo);
1824 }
1825
1826 #undef  KEY_PRESS_EVENT_STOP
1827 #define KEY_PRESS_EVENT_STOP() \
1828         g_signal_stop_emission_by_name(G_OBJECT(button), \
1829                                        "key_press_event");
1830
1831 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
1832                              MimeView *mimeview)
1833 {
1834         gint          num;
1835         MimeInfo     *partinfo;
1836         SummaryView  *summaryview;
1837         TextView     *textview;
1838
1839         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
1840         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
1841
1842         if (!event) return FALSE;
1843
1844         textview = mimeview->textview;
1845
1846         switch (event->keyval) {
1847         case GDK_space:
1848                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1849                         /* stop the button being untoggled */
1850                         KEY_PRESS_EVENT_STOP();
1851                         if (mimeview_scroll_page(mimeview, FALSE))
1852                                 return TRUE;
1853
1854                         if (icon_list_select_by_number(mimeview, num + 1))
1855                                 return TRUE;
1856                 } else {
1857                         icon_selected(mimeview, num, partinfo);
1858                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1859                         return TRUE;
1860                 }
1861
1862                 break;
1863         case GDK_BackSpace:
1864                 mimeview_scroll_page(mimeview, TRUE);
1865                 return TRUE;
1866         case GDK_Return:
1867                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1868                         KEY_PRESS_EVENT_STOP();
1869                         mimeview_scroll_one_line(mimeview,
1870                                                  (event->state & GDK_MOD1_MASK) != 0);
1871                         return TRUE;
1872                 } else {
1873                         icon_selected(mimeview, num, partinfo);
1874                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1875                         return TRUE;
1876                 }
1877
1878         case GDK_n:
1879         case GDK_N:
1880                 BREAK_ON_MODIFIER_KEY();
1881                 if (icon_list_select_by_number(mimeview, num + 1)) {
1882                         KEY_PRESS_EVENT_STOP();
1883                         return TRUE;
1884                 }
1885                 break;
1886
1887         case GDK_p:
1888         case GDK_P:
1889                 BREAK_ON_MODIFIER_KEY();
1890                 if (icon_list_select_by_number(mimeview, num - 1)) {
1891                         KEY_PRESS_EVENT_STOP();
1892                         return TRUE;
1893                 }
1894                 break;
1895
1896         case GDK_y:
1897                 BREAK_ON_MODIFIER_KEY();
1898                 KEY_PRESS_EVENT_STOP();
1899                 mimeview_save_as(mimeview);
1900                 return TRUE;
1901         case GDK_t:
1902                 BREAK_ON_MODIFIER_KEY();
1903                 KEY_PRESS_EVENT_STOP();
1904                 mimeview_display_as_text(mimeview);
1905                 return TRUE;
1906         case GDK_l:
1907                 BREAK_ON_MODIFIER_KEY();
1908                 KEY_PRESS_EVENT_STOP();
1909                 mimeview_launch(mimeview, NULL);
1910                 return TRUE;
1911         case GDK_o:
1912                 BREAK_ON_MODIFIER_KEY();
1913                 KEY_PRESS_EVENT_STOP();
1914                 mimeview_open_with(mimeview);
1915                 return TRUE;
1916         case GDK_c:
1917                 BREAK_ON_MODIFIER_KEY();
1918                 KEY_PRESS_EVENT_STOP();
1919                 mimeview_check_signature(mimeview);
1920                 return TRUE;
1921         default:
1922                 break;
1923         }
1924
1925         if (!mimeview->messageview->mainwin) return FALSE;
1926         summaryview = mimeview->messageview->mainwin->summaryview;
1927         return summary_pass_key_press_event(summaryview, event);
1928 }
1929
1930 static void toggle_icon(GtkToggleButton *button, MimeView *mimeview)
1931 {
1932         GList *child;
1933
1934         child = gtk_container_get_children(GTK_CONTAINER(mimeview->icon_vbox));
1935         for (; child != NULL; child = g_list_next(child)) {
1936                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1937                     GTK_TOGGLE_BUTTON(child->data) != button &&
1938                     gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(child->data)))
1939                         gtk_toggle_button_set_active
1940                                 (GTK_TOGGLE_BUTTON(child->data),
1941                                  FALSE);
1942         }
1943 }
1944
1945 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
1946 {
1947         GtkWidget *pixmap = NULL;
1948         GtkWidget *vbox;
1949         GtkWidget *button;
1950         gchar *tip;
1951         gchar *tiptmp;
1952         const gchar *desc = NULL;
1953         gchar *sigshort = NULL;
1954         gchar *content_type;
1955         StockPixmap stockp;
1956         MimeInfo *partinfo;
1957         MimeInfo *siginfo = NULL;
1958         MimeInfo *encrypted = NULL;
1959
1960         vbox = mimeview->icon_vbox;
1961         mimeview->icon_count++;
1962         button = gtk_toggle_button_new();
1963         gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
1964         g_object_set_data(G_OBJECT(button), "icon_number",
1965                           GINT_TO_POINTER(mimeview->icon_count));
1966         g_object_set_data(G_OBJECT(button), "partinfo",
1967                           mimeinfo);
1968
1969         switch (mimeinfo->type) {
1970
1971         case MIMETYPE_TEXT:
1972                 if (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
1973                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
1974                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched"))
1975                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
1976                 else
1977                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
1978                 break;
1979         case MIMETYPE_MESSAGE:
1980                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
1981                 break;
1982         case MIMETYPE_APPLICATION:
1983                 stockp = STOCK_PIXMAP_MIME_APPLICATION;
1984                 break;
1985         case MIMETYPE_IMAGE:
1986                 stockp = STOCK_PIXMAP_MIME_IMAGE;
1987                 break;
1988         case MIMETYPE_AUDIO:
1989                 stockp = STOCK_PIXMAP_MIME_AUDIO;
1990                 break;
1991         default:
1992                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
1993                 break;
1994         }
1995
1996         partinfo = mimeinfo;
1997         while (partinfo != NULL) {
1998                 if (privacy_mimeinfo_is_signed(partinfo)) {
1999                         siginfo = partinfo;
2000                         break;
2001                 }
2002                 if (privacy_mimeinfo_is_encrypted(partinfo)) {
2003                         encrypted = partinfo;
2004                         break;
2005                 }
2006                 partinfo = procmime_mimeinfo_parent(partinfo);
2007         }
2008
2009         if (siginfo != NULL) {
2010                 switch (privacy_mimeinfo_get_sig_status(siginfo)) {
2011                 case SIGNATURE_UNCHECKED:
2012                 case SIGNATURE_CHECK_FAILED:
2013                 case SIGNATURE_CHECK_TIMEOUT:
2014                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
2015                             STOCK_PIXMAP_PRIVACY_EMBLEM_SIGNED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2016                         break;
2017                 case SIGNATURE_OK:
2018                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
2019                             STOCK_PIXMAP_PRIVACY_EMBLEM_PASSED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2020                         break;
2021                 case SIGNATURE_WARN:
2022                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
2023                             STOCK_PIXMAP_PRIVACY_EMBLEM_WARN, OVERLAY_BOTTOM_RIGHT, 6, 3);
2024                         break;
2025                 case SIGNATURE_INVALID:
2026                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
2027                             STOCK_PIXMAP_PRIVACY_EMBLEM_FAILED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2028                         break;
2029                 }
2030                 sigshort = privacy_mimeinfo_sig_info_short(siginfo);
2031         } else if (encrypted != NULL) {
2032                         pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp,
2033                             STOCK_PIXMAP_PRIVACY_EMBLEM_ENCRYPTED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2034         } else {
2035                 pixmap = stock_pixmap_widget_with_overlay(mimeview->mainwin->window, stockp, 0,
2036                                                           OVERLAY_NONE, 6, 3);
2037         }
2038         gtk_container_add(GTK_CONTAINER(button), pixmap);
2039
2040         if (!desc) {
2041                 if (prefs_common.attach_desc)
2042                         desc = get_part_description(mimeinfo);
2043                 else
2044                         desc = get_part_name(mimeinfo);
2045         }
2046
2047         content_type = procmime_get_content_type_str(mimeinfo->type,
2048                                                      mimeinfo->subtype);
2049
2050         tip = g_strjoin("\n", content_type,
2051                         to_human_readable(mimeinfo->length), NULL);
2052         g_free(content_type);
2053         if (desc && *desc) {
2054                 gchar *tmp = NULL;
2055                 if (!g_utf8_validate(desc, -1, NULL)) {
2056                         tmp = conv_filename_to_utf8(desc);
2057                 } else {
2058                         tmp = g_strdup(desc);
2059                 }
2060                 tiptmp = g_strjoin("\n", tmp, tip, NULL);
2061                 g_free(tip);
2062                 tip = tiptmp;
2063                 g_free(tmp);
2064         }
2065         if (sigshort && *sigshort) {
2066                 tiptmp = g_strjoin("\n", tip, sigshort, NULL);
2067                 g_free(tip);
2068                 tip = tiptmp;
2069         }
2070         g_free(sigshort);
2071
2072         gtk_tooltips_set_tip(mimeview->tooltips, button, tip, NULL);
2073         g_free(tip);
2074         gtk_widget_show_all(button);
2075         gtk_drag_source_set(button, GDK_BUTTON1_MASK|GDK_BUTTON3_MASK,
2076                             mimeview_mime_types, 1, GDK_ACTION_COPY);
2077         g_signal_connect(G_OBJECT(button), "button_release_event",
2078                          G_CALLBACK(icon_clicked_cb), mimeview);
2079         g_signal_connect(G_OBJECT(button), "key_press_event",
2080                          G_CALLBACK(icon_key_pressed), mimeview);
2081         g_signal_connect(G_OBJECT(button), "drag_data_get",
2082                          G_CALLBACK(mimeview_drag_data_get), mimeview);
2083         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
2084
2085 }
2086
2087 static void icon_list_clear (MimeView *mimeview)
2088 {
2089         GList     *child;
2090         GtkAdjustment *adj;
2091
2092         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2093         for (; child != NULL; child = g_list_next(child)) {
2094                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
2095                                        GTK_WIDGET(child->data));
2096                 gtk_widget_destroy(GTK_WIDGET(child->data));
2097         }
2098         g_list_free(child);
2099         mimeview->icon_count = 0;
2100         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2101         gtk_adjustment_set_value(adj, adj->lower);
2102 }
2103
2104 static void icon_list_toggle_by_mime_info(MimeView      *mimeview,
2105                                           MimeInfo      *mimeinfo)
2106 {
2107         GList *child;
2108
2109         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2110         for (; child != NULL; child = g_list_next(child)) {
2111                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2112                     g_object_get_data(G_OBJECT(child->data),
2113                                       "partinfo") == (gpointer)mimeinfo) {
2114                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2115                         gtk_toggle_button_set_active
2116                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2117                 }
2118         }
2119 }
2120
2121 /*!
2122  *\brief        Used to 'click' the next or previous icon.
2123  *
2124  *\return       true if the icon 'number' exists and was selected.
2125  */
2126 static gboolean icon_list_select_by_number(MimeView     *mimeview,
2127                                            gint          number)
2128 {
2129         GList *child;
2130
2131         if (number == 0) return FALSE;
2132         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
2133         for (; child != NULL; child = g_list_next(child)) {
2134                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
2135                     GPOINTER_TO_INT(g_object_get_data(G_OBJECT(child->data),
2136                                         "icon_number")) == number) {
2137                         icon_selected(mimeview, number,
2138                                       (MimeInfo*)g_object_get_data(G_OBJECT(child->data),
2139                                                                    "partinfo"));
2140                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
2141                         gtk_toggle_button_set_active
2142                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
2143                         gtk_widget_grab_focus(GTK_WIDGET(child->data));
2144
2145                         return TRUE;
2146                 }
2147         }
2148         return FALSE;
2149 }
2150
2151 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
2152                                          GtkAllocation *size, MimeView *mimeview)
2153 {
2154         GtkAllocation *mainbox_size;
2155         GtkAllocation *vbox_size;
2156         GtkAllocation *layout_size;
2157         GtkAdjustment *adj;
2158
2159         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2160
2161         mainbox_size = &mimeview->icon_mainbox->allocation;
2162         vbox_size = &mimeview->icon_vbox->allocation;
2163         layout_size = &mimeview->icon_scroll->allocation;
2164
2165         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
2166                             GTK_LAYOUT(mimeview->icon_scroll)->width,
2167                             MAX(vbox_size->height, layout_size->height));
2168         adj->step_increment = 10;
2169 }
2170
2171 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
2172 {
2173         GtkRequisition size;
2174
2175         mimeview_set_multipart_tree(mimeview, mimeinfo, NULL);
2176
2177         g_return_if_fail(mimeinfo != NULL);
2178
2179         while (mimeinfo != NULL) {
2180                 if (mimeinfo->type != MIMETYPE_MULTIPART)
2181                         icon_list_append_icon(mimeview, mimeinfo);
2182                 if (mimeinfo->node->children != NULL)
2183                         icon_list_create(mimeview,
2184                                 (MimeInfo *) mimeinfo->node->children->data);
2185                 mimeinfo = mimeinfo->node->next != NULL
2186                          ? (MimeInfo *) mimeinfo->node->next->data
2187                          : NULL;
2188         }
2189         gtk_widget_size_request(mimeview->icon_vbox, &size);
2190         if (size.width > mimeview->icon_mainbox->requisition.width) {
2191                 gtk_widget_set_size_request(mimeview->icon_mainbox,
2192                                             size.width, -1);
2193         }
2194
2195 }
2196
2197 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
2198 {
2199         gtk_widget_ref(button);
2200
2201         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
2202                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
2203                                         GTK_SHADOW_NONE);
2204                 gtk_widget_hide(mimeview->icon_mainbox);
2205                 gtk_widget_show(mimeview->ctree_mainbox);
2206                 gtk_paned_set_position(GTK_PANED(mimeview->paned), mimeview->oldsize);
2207
2208                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
2209                                         button);
2210                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
2211                                    button, FALSE, FALSE, 0);
2212                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 6);
2213         } else {
2214                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
2215                               GTK_SHADOW_NONE);
2216                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.height;
2217                 gtk_widget_hide(mimeview->ctree_mainbox);
2218                 gtk_widget_show(mimeview->icon_mainbox);
2219                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
2220
2221                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
2222                                         button);
2223                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
2224                                    button, FALSE, FALSE, 0);
2225                 gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
2226                 if (mimeview->opened)
2227                         icon_list_toggle_by_mime_info
2228                                 (mimeview, gtk_ctree_node_get_row_data(GTK_CTREE(mimeview->ctree),
2229                                                                        mimeview->opened));
2230
2231                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 0);
2232         }
2233         gtk_widget_grab_focus(button);
2234         gtk_widget_unref(button);
2235
2236 }
2237
2238 void mimeview_update (MimeView *mimeview) {
2239         if (mimeview && mimeview->mimeinfo) {
2240                 icon_list_clear(mimeview);
2241                 icon_list_create(mimeview, mimeview->mimeinfo);
2242         }
2243 }
2244
2245 void mimeview_handle_cmd(MimeView *mimeview, const gchar *cmd, GdkEventButton *event, gpointer data)
2246 {
2247         MessageView *msgview = NULL;
2248         MainWindow *mainwin = NULL;
2249
2250         if (!cmd)
2251                 return;
2252
2253         msgview = mimeview->messageview;
2254         if (!msgview)
2255                 return;
2256
2257         mainwin = msgview->mainwin;
2258         if (!mainwin)
2259                 return;
2260
2261         g_object_set_data(G_OBJECT(mimeview->popupmenu),
2262                           "pop_partinfo", NULL);
2263
2264         if (!strcmp(cmd, "sc://view_log"))
2265                 log_window_show(mainwin->logwin);
2266         else if (!strcmp(cmd, "sc://save_as"))
2267                 mimeview_save_as(mimeview);
2268         else if (!strcmp(cmd, "sc://display_as_text"))
2269                 mimeview_display_as_text(mimeview);
2270         else if (!strcmp(cmd, "sc://open_with"))
2271                 mimeview_open_with(mimeview);
2272         else if (!strcmp(cmd, "sc://open"))
2273                 mimeview_launch(mimeview, NULL);
2274         else if (!strcmp(cmd, "sc://select_attachment") && data != NULL) {
2275                 icon_list_toggle_by_mime_info(mimeview, (MimeInfo *)data);
2276                 icon_selected(mimeview, -1, (MimeInfo *)data);
2277         } else if (!strcmp(cmd, "sc://open_attachment") && data != NULL) {
2278                 mimeview_launch(mimeview, (MimeInfo *)data);
2279         } else if (!strcmp(cmd, "sc://menu_attachment") && data != NULL) {
2280                 mimeview->spec_part = (MimeInfo *)data;
2281                 part_button_pressed(mimeview, event, (MimeInfo *)data);
2282         }
2283 }
2284
2285 gboolean mimeview_scroll_page(MimeView *mimeview, gboolean up)
2286 {
2287         if (mimeview->type == MIMEVIEW_TEXT)
2288                 return textview_scroll_page(mimeview->textview, up);
2289         else if (mimeview->mimeviewer) {
2290                 MimeViewer *mimeviewer = mimeview->mimeviewer;
2291                 if (mimeviewer->scroll_page)
2292                         return mimeviewer->scroll_page(mimeviewer, up);
2293         }
2294         return TRUE;
2295 }
2296
2297 void mimeview_scroll_one_line(MimeView *mimeview, gboolean up)
2298 {
2299         if (mimeview->type == MIMEVIEW_TEXT)
2300                 textview_scroll_one_line(mimeview->textview, up);
2301         else if (mimeview->mimeviewer) {
2302                 MimeViewer *mimeviewer = mimeview->mimeviewer;
2303                 if (mimeviewer->scroll_one_line)
2304                         mimeviewer->scroll_one_line(mimeviewer, up);
2305         }
2306 }