src/mimeview.c

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