src/mimeview.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2015 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #  include "config.h"
  21 #include "claws-features.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #ifdef G_OS_WIN32
  27 #define UNICODE
  28 #define _UNICODE
  29 #endif
  30
  31 #include <glib.h>
  32 #include <glib/gi18n.h>
  33 #include <gdk/gdkkeysyms.h>
  34 #include <gtk/gtk.h>
  35 #include <stdio.h>
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38
  39 #include "main.h"
  40 #include "mimeview.h"
  41 #include "textview.h"
  42 #include "procmime.h"
  43 #include "summaryview.h"
  44 #include "menu.h"
  45 #include "filesel.h"
  46 #include "alertpanel.h"
  47 #include "inputdialog.h"
  48 #include "utils.h"
  49 #include "gtkutils.h"
  50 #include "prefs_common.h"
  51 #include "procheader.h"
  52 #include "stock_pixmap.h"
  53 #include "gtk/gtkvscrollbutton.h"
  54 #include "gtk/logwindow.h"
  55 #include "timing.h"
  56 #include "manage_window.h"
  57 #include "privacy.h"
  58 #include "file-utils.h"
  59
  60 typedef enum
  61 {
  62         COL_MIMETYPE = 0,
  63         COL_SIZE     = 1,
  64         COL_NAME     = 2,
  65         COL_DATA     = 3,
  66 } MimeViewColumnPos;
  67
  68 #define N_MIMEVIEW_COLS 4
  69
  70 static void mimeview_set_multipart_tree         (MimeView       *mimeview,
  71                                                  MimeInfo       *mimeinfo,
  72                                                  GtkTreeIter    *parent);
  73 static void mimeview_show_message_part          (MimeView       *mimeview,
  74                                                  MimeInfo       *partinfo);
  75 static void mimeview_change_view_type           (MimeView       *mimeview,
  76                                                  MimeViewType    type);
  77 static gchar *mimeview_get_filename_for_part    (MimeInfo       *partinfo,
  78                                                  const gchar    *basedir,
  79                                                  gint            number);
  80 static gboolean mimeview_write_part             (const gchar    *filename,
  81                                                  MimeInfo       *partinfo,
  82                                                  gboolean        handle_error);
  83
  84 static void mimeview_selected           (GtkTreeSelection       *selection,
  85                                          MimeView       *mimeview);
  86 static gint mimeview_button_pressed     (GtkWidget      *widget,
  87                                          GdkEventButton *event,
  88                                          MimeView       *mimeview);
  89 static gint mimeview_key_pressed        (GtkWidget      *widget,
  90                                          GdkEventKey    *event,
  91                                          MimeView       *mimeview);
  92
  93 static void mimeview_drag_data_get      (GtkWidget        *widget,
  94                                          GdkDragContext   *drag_context,
  95                                          GtkSelectionData *selection_data,
  96                                          guint             info,
  97                                          guint             time,
  98                                          MimeView         *mimeview);
  99
 100 static gboolean mimeview_scrolled       (GtkWidget      *widget,
 101                                          GdkEventScroll *event,
 102                                          MimeView       *mimeview);
 103
 104 static void mimeview_save_all           (MimeView       *mimeview);
 105 #ifndef G_OS_WIN32
 106 static void mimeview_open_part_with     (MimeView       *mimeview,
 107                                          MimeInfo       *partinfo,
 108                                          gboolean        automatic);
 109 #endif
 110 static void mimeview_send_to            (MimeView       *mimeview,
 111                                          MimeInfo       *partinfo);
 112 static void mimeview_view_file          (const gchar    *filename,
 113                                          MimeInfo       *partinfo,
 114                                          const gchar    *cmd,
 115                                          MimeView       *mimeview);
 116 static gboolean icon_clicked_cb         (GtkWidget      *button,
 117                                          GdkEventButton *event,
 118                                          MimeView       *mimeview);
 119 static void icon_selected               (MimeView       *mimeview,
 120                                          gint            num,
 121                                          MimeInfo       *partinfo);
 122 static gint icon_key_pressed            (GtkWidget      *button,
 123                                          GdkEventKey    *event,
 124                                          MimeView       *mimeview);
 125 static void icon_list_append_icon       (MimeView       *mimeview,
 126                                          MimeInfo       *mimeinfo);
 127 static void icon_list_create            (MimeView       *mimeview,
 128                                          MimeInfo       *mimeinfo);
 129 static void icon_list_clear             (MimeView       *mimeview);
 130 static void icon_list_toggle_by_mime_info (MimeView     *mimeview,
 131                                            MimeInfo     *mimeinfo);
 132 static void ctree_size_allocate_cb      (GtkWidget      *widget,
 133                                          GtkAllocation  *allocation,
 134                                          MimeView       *mimeview);
 135 static gint mime_toggle_button_cb(GtkWidget *button, GdkEventButton *event,
 136                                     MimeView *mimeview);
 137 static gboolean part_button_pressed     (MimeView       *mimeview,
 138                                          GdkEventButton *event,
 139                                          MimeInfo       *partinfo);
 140 static void icon_scroll_size_allocate_cb(GtkWidget      *widget,
 141                                          GtkAllocation  *layout_size,
 142                                          MimeView       *mimeview);
 143 static MimeInfo *mimeview_get_part_to_use(MimeView *mimeview);
 144 static const gchar *get_part_name(MimeInfo *partinfo);
 145 static const gchar *get_part_description(MimeInfo *partinfo);
 146
 147 static void mimeview_launch_cb(GtkAction *action, gpointer data)
 148 {
 149         MimeView *mimeview = (MimeView *)data;
 150         mimeview_launch(mimeview, mimeview_get_part_to_use(mimeview));
 151 }
 152
 153 #ifndef G_OS_WIN32
 154 static void mimeview_open_with_cb(GtkAction *action, gpointer data)
 155 {
 156         mimeview_open_with((MimeView *)data);
 157 }
 158 #endif
 159
 160 static void mimeview_send_to_cb(GtkAction *action, gpointer data)
 161 {
 162         MimeView *mimeview = (MimeView *)data;
 163         mimeview_send_to(mimeview, mimeview_get_part_to_use(mimeview));
 164 }
 165
 166 static void mimeview_display_as_text_cb(GtkAction *action, gpointer data)
 167 {
 168         mimeview_display_as_text((MimeView *)data);
 169 }
 170
 171 static void mimeview_save_as_cb(GtkAction *action, gpointer data)
 172 {
 173         mimeview_save_as((MimeView *)data);
 174 }
 175
 176 static void mimeview_save_all_cb(GtkAction *action, gpointer data)
 177 {
 178         mimeview_save_all((MimeView *)data);
 179 }
 180
 181 static void mimeview_select_next_part_cb(GtkAction *action, gpointer data)
 182 {
 183         mimeview_select_next_part((MimeView *)data);
 184 }
 185
 186 static void mimeview_select_prev_part_cb(GtkAction *action, gpointer data)
 187 {
 188         mimeview_select_prev_part((MimeView *)data);
 189 }
 190
 191 static GtkActionEntry mimeview_menu_actions[] = {
 192         { "MimeView", NULL, "MimeView", NULL, NULL, NULL },
 193         { "MimeView/Open", NULL, N_("_Open"), NULL, "Open MIME part", G_CALLBACK(mimeview_launch_cb) },
 194 #if (!defined G_OS_WIN32)
 195         { "MimeView/OpenWith", NULL, N_("Open _with..."), NULL, "Open MIME part with...", G_CALLBACK(mimeview_open_with_cb) },
 196 #endif
 197         { "MimeView/SendTo", NULL, N_("Send to..."), NULL, "Send to", G_CALLBACK(mimeview_send_to_cb) },
 198         { "MimeView/DisplayAsText", NULL, N_("_Display as text"), NULL, "Display as text", G_CALLBACK(mimeview_display_as_text_cb) },
 199         { "MimeView/SaveAs", NULL, N_("_Save as..."), NULL, "Save as", G_CALLBACK(mimeview_save_as_cb) },
 200         { "MimeView/SaveAll", NULL, N_("Save _all..."), NULL, "Save all parts", G_CALLBACK(mimeview_save_all_cb) },
 201         { "MimeView/NextPart", NULL, N_("Next part"), NULL, "Next part", G_CALLBACK(mimeview_select_next_part_cb) },
 202         { "MimeView/PrevPart", NULL, N_("Previous part"), NULL, "Previous part", G_CALLBACK(mimeview_select_prev_part_cb) }
 203 };
 204
 205 static GtkTargetEntry mimeview_mime_types[] =
 206 {
 207         {"text/uri-list", 0, 0}
 208 };
 209
 210 GSList *mimeviewer_factories;
 211 GSList *mimeviews;
 212
 213 static GdkCursor *hand_cursor = NULL;
 214
 215 static gboolean mimeview_visi_notify(GtkWidget *widget,
 216                                        GdkEventVisibility *event,
 217                                        MimeView *mimeview)
 218 {
 219         gdk_window_set_cursor(gtk_widget_get_window(widget), hand_cursor);
 220         return FALSE;
 221 }
 222
 223 static gboolean mimeview_leave_notify(GtkWidget *widget,
 224                                       GdkEventCrossing *event,
 225                                       MimeView *mimeview)
 226 {
 227         gdk_window_set_cursor(gtk_widget_get_window(widget), NULL);
 228         return FALSE;
 229 }
 230
 231 static gboolean mimeview_enter_notify(GtkWidget *widget,
 232                                       GdkEventCrossing *event,
 233                                       MimeView *mimeview)
 234 {
 235         gdk_window_set_cursor(gtk_widget_get_window(widget), hand_cursor);
 236         return FALSE;
 237 }
 238
 239 MimeView *mimeview_create(MainWindow *mainwin)
 240 {
 241         MimeView *mimeview;
 242
 243         GtkWidget *paned;
 244         GtkWidget *scrolledwin;
 245         GtkWidget *ctree;
 246         GtkWidget *mime_notebook;
 247         GtkWidget *popupmenu;
 248         GtkWidget *ctree_mainbox;
 249         GtkWidget *vbox;
 250         GtkWidget *mime_toggle;
 251         GtkWidget *icon_mainbox;
 252         GtkWidget *icon_scroll;
 253         GtkWidget *icon_vbox;
 254         GtkWidget *arrow;
 255         GtkWidget *scrollbutton;
 256         GtkWidget *hbox;
 257         NoticeView *siginfoview;
 258         GtkRequisition r;
 259         GtkTreeStore *model;
 260         GtkCellRenderer *renderer;
 261         GtkTreeViewColumn *column;
 262         GtkTreeSelection *selection;
 263
 264         gchar *titles[N_MIMEVIEW_COLS];
 265         gint cols;
 266
 267         if (!hand_cursor)
 268                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 269
 270         debug_print("Creating MIME view...\n");
 271         mimeview = g_new0(MimeView, 1);
 272
 273         titles[COL_MIMETYPE] = _("MIME Type");
 274         titles[COL_SIZE]     = _("Size");
 275         titles[COL_NAME]     = _("Name");
 276
 277         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 278         gtk_widget_show(scrolledwin);
 279         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 280                                        GTK_POLICY_AUTOMATIC,
 281                                        GTK_POLICY_AUTOMATIC);
 282
 283         model = gtk_tree_store_new(N_MIMEVIEW_COLS,
 284                                    G_TYPE_STRING,
 285                                    G_TYPE_STRING,
 286                                    G_TYPE_STRING,
 287                                    G_TYPE_POINTER);
 288
 289         ctree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
 290         g_object_unref(model);
 291         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(ctree), FALSE);
 292         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ctree),
 293                                         prefs_common.use_stripes_everywhere);
 294         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ctree),
 295                                         prefs_common.show_col_headers);
 296
 297         renderer = gtk_cell_renderer_text_new();
 298         cols = gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(ctree),
 299                                         -1, titles[COL_MIMETYPE],renderer,
 300                                         "text", COL_MIMETYPE, NULL);
 301         column = gtk_tree_view_get_column(GTK_TREE_VIEW(ctree), cols-1);
 302
 303         renderer = gtk_cell_renderer_text_new();
 304         gtk_cell_renderer_set_alignment(renderer, 1, 0.5);
 305         cols = gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(ctree),
 306                                         -1, titles[COL_SIZE], renderer,
 307                                         "text", COL_SIZE, NULL);
 308         column = gtk_tree_view_get_column(GTK_TREE_VIEW(ctree), cols-1);
 309         gtk_tree_view_column_set_alignment(GTK_TREE_VIEW_COLUMN(column), 1);
 310
 311         renderer = gtk_cell_renderer_text_new();
 312         cols = gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(ctree),
 313                                         -1, titles[COL_NAME], renderer,
 314                                         "text", COL_NAME, NULL);
 315         column = gtk_tree_view_get_column(GTK_TREE_VIEW(ctree), cols-1);
 316         gtk_tree_view_column_set_expand(GTK_TREE_VIEW_COLUMN(column), TRUE);
 317
 318         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(ctree));
 319         gtk_tree_selection_set_mode(selection, GTK_SELECTION_BROWSE);
 320
 321         gtk_widget_show(ctree);
 322         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 323         gtk_drag_source_set(ctree, GDK_BUTTON1_MASK|GDK_BUTTON3_MASK,
 324                             mimeview_mime_types, 1, GDK_ACTION_COPY);
 325
 326         g_signal_connect(G_OBJECT(selection), "changed",
 327                          G_CALLBACK(mimeview_selected), mimeview);
 328         g_signal_connect(G_OBJECT(ctree), "button_release_event",
 329                          G_CALLBACK(mimeview_button_pressed), mimeview);
 330         g_signal_connect(G_OBJECT(ctree), "key_press_event",
 331                          G_CALLBACK(mimeview_key_pressed), mimeview);
 332         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
 333                          G_CALLBACK(mimeview_drag_data_get), mimeview);
 334
 335         mime_notebook = gtk_notebook_new();
 336         gtk_widget_show(mime_notebook);
 337         gtk_widget_set_can_focus(mime_notebook, FALSE);
 338         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(mime_notebook), FALSE);
 339         gtk_notebook_set_show_border(GTK_NOTEBOOK(mime_notebook), FALSE);
 340
 341         icon_vbox = gtk_vbox_new(FALSE, 2);
 342         gtk_widget_show(icon_vbox);
 343         icon_scroll = gtk_layout_new(NULL, NULL);
 344         gtk_widget_show(icon_scroll);
 345         gtk_layout_put(GTK_LAYOUT(icon_scroll), icon_vbox, 0, 0);
 346         scrollbutton = gtk_vscrollbutton_new(gtk_layout_get_vadjustment(GTK_LAYOUT(icon_scroll)));
 347         gtk_widget_show(scrollbutton);
 348
 349         g_signal_connect(G_OBJECT(icon_scroll), "scroll_event",
 350                          G_CALLBACK(mimeview_scrolled), mimeview);
 351
 352         mime_toggle = gtk_event_box_new();
 353         gtk_event_box_set_visible_window(GTK_EVENT_BOX(mime_toggle), FALSE);
 354
 355         g_signal_connect(G_OBJECT(mime_toggle), "motion-notify-event",
 356                          G_CALLBACK(mimeview_visi_notify), mimeview);
 357         g_signal_connect(G_OBJECT(mime_toggle), "leave-notify-event",
 358                          G_CALLBACK(mimeview_leave_notify), mimeview);
 359         g_signal_connect(G_OBJECT(mime_toggle), "enter-notify-event",
 360                          G_CALLBACK(mimeview_enter_notify), mimeview);
 361
 362         gtk_container_set_border_width(GTK_CONTAINER(mime_toggle), 2);
 363         gtk_widget_show(mime_toggle);
 364         mimeview->ctree_mode = FALSE;
 365         arrow = gtk_arrow_new(GTK_ARROW_LEFT, GTK_SHADOW_NONE);
 366         gtk_widget_show(arrow);
 367         gtk_widget_size_request(arrow, &r);
 368         gtk_container_add(GTK_CONTAINER(mime_toggle), arrow);
 369         g_signal_connect(G_OBJECT(mime_toggle), "button_release_event",
 370                          G_CALLBACK(mime_toggle_button_cb), mimeview);
 371
 372         icon_mainbox = gtk_vbox_new(FALSE, 0);
 373         gtk_widget_show(icon_mainbox);
 374         gtk_widget_set_size_request(icon_mainbox, 32, -1);
 375         gtk_box_pack_start(GTK_BOX(icon_mainbox), mime_toggle, FALSE, FALSE, 0);
 376         gtk_box_pack_start(GTK_BOX(icon_mainbox), icon_scroll, TRUE, TRUE, 3);
 377         gtk_box_pack_end(GTK_BOX(icon_mainbox), scrollbutton, FALSE, FALSE, 0);
 378         g_signal_connect(G_OBJECT(icon_mainbox), "size_allocate",
 379                          G_CALLBACK(icon_scroll_size_allocate_cb), mimeview);
 380
 381         ctree_mainbox = gtk_hbox_new(FALSE, 0);
 382         gtk_box_pack_start(GTK_BOX(ctree_mainbox), scrolledwin, TRUE, TRUE, 0);
 383         g_signal_connect(G_OBJECT(ctree_mainbox), "size_allocate",
 384                          G_CALLBACK(ctree_size_allocate_cb), mimeview);
 385
 386         mimeview->ui_manager = gtk_ui_manager_new();
 387         mimeview->action_group = cm_menu_create_action_group_full(mimeview->ui_manager,
 388                         "MimeView", mimeview_menu_actions,
 389                         G_N_ELEMENTS(mimeview_menu_actions), (gpointer)mimeview);
 390
 391         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager, "/", "Menus", "Menus", GTK_UI_MANAGER_MENUBAR)
 392         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 393                         "/Menus/", "MimeView", "MimeView", GTK_UI_MANAGER_MENU);
 394         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 395                         "/Menus/MimeView/", "Open", "MimeView/Open",
 396                         GTK_UI_MANAGER_MENUITEM);
 397 #if (!defined G_OS_WIN32)
 398         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 399                         "/Menus/MimeView/", "OpenWith", "MimeView/OpenWith",
 400                         GTK_UI_MANAGER_MENUITEM);
 401 #endif
 402         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 403                         "/Menus/MimeView/", "SendTo", "MimeView/SendTo",
 404                         GTK_UI_MANAGER_MENUITEM);
 405         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 406                         "/Menus/MimeView/", "DisplayAsText", "MimeView/DisplayAsText",
 407                         GTK_UI_MANAGER_MENUITEM);
 408         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 409                         "/Menus/MimeView/", "SaveAs", "MimeView/SaveAs",
 410                         GTK_UI_MANAGER_MENUITEM);
 411         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 412                         "/Menus/MimeView/", "SaveAll", "MimeView/SaveAll",
 413                         GTK_UI_MANAGER_MENUITEM);
 414         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 415                         "/Menus/MimeView/", "NextPart", "MimeView/NextPart",
 416                         GTK_UI_MANAGER_MENUITEM);
 417         MENUITEM_ADDUI_MANAGER(mimeview->ui_manager,
 418                         "/Menus/MimeView/", "PrevPart", "MimeView/PrevPart",
 419                         GTK_UI_MANAGER_MENUITEM);
 420
 421         popupmenu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(
 422                                 gtk_ui_manager_get_widget(mimeview->ui_manager, "/Menus/MimeView")) );
 423
 424
 425         vbox = gtk_vbox_new(FALSE, 0);
 426         gtk_widget_show(vbox);
 427         siginfoview = noticeview_create(mainwin);
 428         noticeview_hide(siginfoview);
 429         noticeview_set_icon_clickable(siginfoview, TRUE);
 430         gtk_box_pack_start(GTK_BOX(vbox), mime_notebook, TRUE, TRUE, 0);
 431         gtk_box_pack_end(GTK_BOX(vbox), GTK_WIDGET_PTR(siginfoview), FALSE, FALSE, 0);
 432
 433         paned = gtk_vpaned_new();
 434         gtk_widget_show(paned);
 435         gtk_paned_pack1(GTK_PANED(paned), ctree_mainbox, FALSE, TRUE);
 436         gtk_paned_pack2(GTK_PANED(paned), vbox, TRUE, TRUE);
 437
 438         hbox = gtk_hbox_new(FALSE, 0);
 439         gtk_box_pack_start(GTK_BOX(hbox), paned, TRUE, TRUE, 0);
 440         gtk_box_pack_start(GTK_BOX(hbox), icon_mainbox, FALSE, FALSE, 0);
 441
 442         gtk_widget_show(hbox);
 443         gtk_widget_hide(ctree_mainbox);
 444 #ifdef GENERIC_UMPC
 445         gtk_widget_set_size_request(mime_toggle, -1, r.height + 8);
 446 #endif
 447         mimeview->hbox          = hbox;
 448         mimeview->paned         = paned;
 449         mimeview->scrolledwin   = scrolledwin;
 450         mimeview->ctree         = ctree;
 451         mimeview->mime_notebook = mime_notebook;
 452         mimeview->popupmenu     = popupmenu;
 453         mimeview->type          = -1;
 454         mimeview->ctree_mainbox = ctree_mainbox;
 455         mimeview->icon_scroll   = icon_scroll;
 456         mimeview->icon_vbox     = icon_vbox;
 457         mimeview->icon_mainbox  = icon_mainbox;
 458         mimeview->icon_count    = 0;
 459         mimeview->mainwin       = mainwin;
 460         mimeview->mime_toggle   = mime_toggle;
 461         mimeview->siginfoview   = siginfoview;
 462         mimeview->scrollbutton  = scrollbutton;
 463         mimeview->target_list   = gtk_target_list_new(mimeview_mime_types, 1);
 464
 465         mimeviews = g_slist_prepend(mimeviews, mimeview);
 466
 467         return mimeview;
 468 }
 469
 470 void mimeview_init(MimeView *mimeview)
 471 {
 472         textview_init(mimeview->textview);
 473
 474         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 475                 GTK_WIDGET_PTR(mimeview->textview));
 476 }
 477
 478 static gboolean any_part_is_signed(MimeInfo *mimeinfo)
 479 {
 480         while (mimeinfo) {
 481                 if (privacy_mimeinfo_is_signed(mimeinfo))
 482                         return TRUE;
 483                 mimeinfo = procmime_mimeinfo_next(mimeinfo);
 484         }
 485
 486         return FALSE;
 487 }
 488
 489 void mimeview_show_message(MimeView *mimeview, MimeInfo *mimeinfo,
 490                            const gchar *file)
 491 {
 492         GtkTreeView *ctree = GTK_TREE_VIEW(mimeview->ctree);
 493
 494         mimeview_clear(mimeview);
 495
 496         cm_return_if_fail(file != NULL);
 497         cm_return_if_fail(mimeinfo != NULL);
 498
 499         mimeview->mimeinfo = mimeinfo;
 500
 501         mimeview->file = g_strdup(file);
 502
 503         g_signal_handlers_block_by_func(G_OBJECT(ctree), mimeview_selected,
 504                                         mimeview);
 505
 506         /* check if the mail's signed - it can change the mail structure */
 507
 508         if (any_part_is_signed(mimeinfo))
 509                 debug_print("signed mail\n");
 510
 511         mimeview_set_multipart_tree(mimeview, mimeinfo, NULL);
 512         gtk_tree_view_expand_all(ctree);
 513         icon_list_clear(mimeview);
 514         icon_list_create(mimeview, mimeinfo);
 515
 516         g_signal_handlers_unblock_by_func(G_OBJECT(ctree),
 517                                           mimeview_selected, mimeview);
 518 }
 519
 520 #ifdef USE_PTHREAD
 521 static void mimeview_check_sig_cancel_now(MimeView *mimeview);
 522 #endif
 523
 524 static void mimeview_free_mimeinfo(MimeView *mimeview)
 525 {
 526         gboolean defer = FALSE;
 527 #ifdef USE_PTHREAD
 528         defer = (mimeview->check_data != NULL);
 529         if (defer)
 530                 mimeview->check_data->free_after_use = TRUE;
 531 #endif
 532         if (mimeview->mimeinfo != NULL && !defer) {
 533                 procmime_mimeinfo_free_all(&mimeview->mimeinfo);
 534                 mimeview->mimeinfo = NULL;
 535         } else if (defer) {
 536 #ifdef USE_PTHREAD
 537                 debug_print("deferring free(mimeinfo) and cancelling check\n");
 538                 mimeview_check_sig_cancel_now(mimeview);
 539 #endif
 540         }
 541 }
 542
 543 void mimeview_destroy(MimeView *mimeview)
 544 {
 545         GSList *cur;
 546
 547         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 548                 MimeViewer *viewer = (MimeViewer *) cur->data;
 549                 viewer->destroy_viewer(viewer);
 550         }
 551         g_slist_free(mimeview->viewers);
 552         gtk_target_list_unref(mimeview->target_list);
 553
 554 #ifdef USE_PTHREAD
 555         if (mimeview->check_data) {
 556                 mimeview->check_data->destroy_mimeview = TRUE;
 557                 debug_print("deferring destroy\n");
 558         } else
 559 #endif
 560         {
 561                 mimeview_free_mimeinfo(mimeview);
 562                 gtk_tree_path_free(mimeview->opened);
 563                 g_free(mimeview->file);
 564                 g_free(mimeview);
 565                 mimeviews = g_slist_remove(mimeviews, mimeview);
 566         }
 567
 568 }
 569
 570 MimeInfo *mimeview_get_selected_part(MimeView *mimeview)
 571 {
 572         return gtkut_tree_view_get_selected_pointer(
 573                         GTK_TREE_VIEW(mimeview->ctree), COL_DATA,
 574                         NULL, NULL, NULL);
 575 }
 576
 577 MimeInfo *mimeview_get_node_part(MimeView *mimeview, GtkTreePath *path)
 578 {
 579         GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
 580         GtkTreeIter iter;
 581         MimeInfo *partinfo;
 582
 583         gtk_tree_model_get_iter(model, &iter, path);
 584         gtk_tree_model_get(model, &iter, COL_DATA, &partinfo, -1);
 585         return partinfo;
 586 }
 587
 588 gboolean mimeview_tree_is_empty(MimeView *mimeview)
 589 {
 590         GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
 591         GtkTreeIter iter;
 592         return !gtk_tree_model_get_iter_first(model, &iter);
 593 }
 594
 595 static gboolean mimeview_tree_next(GtkTreeModel *model, GtkTreePath *path)
 596 {
 597         GtkTreeIter iter, parent;
 598         gboolean has_parent;
 599
 600         gtk_tree_model_get_iter(model, &iter, path);
 601
 602         if (gtk_tree_model_iter_has_child(model, &iter)) {
 603                 gtk_tree_path_down(path);
 604                 return TRUE;
 605         }
 606
 607         has_parent = gtk_tree_model_iter_parent(model, &parent, &iter);
 608
 609         if (!gtk_tree_model_iter_next(model, &iter)) {
 610                 while (has_parent) {
 611                         GtkTreeIter saved_parent = parent;
 612                         gtk_tree_path_up(path);
 613                         if (gtk_tree_model_iter_next(model, &parent)) {
 614                                 gtk_tree_path_next(path);
 615                                 return TRUE;
 616                         } else {
 617                                 has_parent = gtk_tree_model_iter_parent(model, &parent, &saved_parent);
 618                         }
 619                 }
 620
 621         } else {
 622                 gtk_tree_path_next(path);
 623                 return TRUE;
 624         }
 625
 626         return FALSE;
 627 }
 628
 629 static gboolean mimeview_tree_prev(MimeView *mimeview, GtkTreePath *path)
 630 {
 631         GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
 632         GtkTreeIter iter, child, parent;
 633         gboolean has_parent;
 634
 635         gtk_tree_model_get_iter(model, &iter, path);
 636         has_parent = gtk_tree_model_iter_parent(model, &parent, &iter);
 637
 638         if (gtk_tree_path_prev(path)) {
 639                 gtk_tree_model_get_iter(model, &iter, path);
 640
 641                 if (gtk_tree_model_iter_nth_child(model, &child, &iter, 0)) {
 642                         gtk_tree_path_down(path);
 643
 644                         while (gtk_tree_model_iter_next(model, &child))
 645                                 gtk_tree_path_next(path);
 646                 }
 647
 648                 return TRUE;
 649         }
 650
 651         if (has_parent) {
 652                 gtk_tree_path_up(path);
 653                 return TRUE;
 654         }
 655
 656         return FALSE;
 657 }
 658
 659 gint mimeview_get_selected_part_num(MimeView *mimeview)
 660 {
 661         GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
 662         GtkTreeIter iter;
 663         GtkTreePath *path;
 664         gint i = 0;
 665
 666         if (!gtk_tree_model_get_iter_first(model, &iter))
 667                 return -1;
 668         path = gtk_tree_model_get_path(model, &iter);
 669
 670         do {
 671                 if (!gtk_tree_path_compare(mimeview->opened, path)) {
 672                         gtk_tree_path_free(path);
 673                         return i;
 674                 }
 675
 676                 i++;
 677         } while (mimeview_tree_next(model, path));
 678
 679         gtk_tree_path_free(path);
 680
 681         return -1;
 682 }
 683
 684 void mimeview_select_part_num(MimeView *mimeview, gint i)
 685 {
 686         GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
 687         GtkTreeIter iter;
 688         GtkTreePath *path;
 689         GtkTreeSelection *selection;
 690         gint x = 0;
 691
 692         if (i < 0)
 693                 return;
 694
 695         if (!gtk_tree_model_get_iter_first(model, &iter))
 696                 return;
 697         path = gtk_tree_model_get_path(model, &iter);
 698
 699         while (x != i) {
 700                 if (!mimeview_tree_next(model, path)) {
 701                         gtk_tree_path_free(path);
 702                         return;
 703                 }
 704                 x++;
 705         }
 706
 707         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(mimeview->ctree));
 708         gtk_tree_selection_select_path(selection, path);
 709         gtk_tree_path_free(path);
 710 }
 711
 712 static void mimeview_set_multipart_tree(MimeView *mimeview,
 713                                         MimeInfo *mimeinfo,
 714                                         GtkTreeIter *parent)
 715 {
 716         GtkTreeStore *model = GTK_TREE_STORE(gtk_tree_view_get_model(
 717                                         GTK_TREE_VIEW(mimeview->ctree)));
 718         GtkTreeIter iter;
 719         gchar *content_type, *length, *name;
 720
 721         cm_return_if_fail(mimeinfo != NULL);
 722
 723         while (mimeinfo != NULL) {
 724                 if (mimeinfo->type != MIMETYPE_UNKNOWN && mimeinfo->subtype)
 725                         content_type = g_strdup_printf("%s/%s",
 726                                         procmime_get_media_type_str(mimeinfo->type),
 727                                         mimeinfo->subtype);
 728                 else
 729                         content_type = g_strdup("UNKNOWN");
 730
 731                 length = g_strdup(to_human_readable((goffset) mimeinfo->length));
 732
 733                 if (prefs_common.attach_desc)
 734                         name = g_strdup(get_part_description(mimeinfo));
 735                 else
 736                         name = g_strdup(get_part_name(mimeinfo));
 737
 738                 gtk_tree_store_append(model, &iter, parent);
 739                 gtk_tree_store_set(model, &iter,
 740                                 COL_MIMETYPE, content_type,
 741                                 COL_SIZE, length,
 742                                 COL_NAME, name,
 743                                 COL_DATA, mimeinfo, -1);
 744                 g_free(content_type);
 745                 g_free(length);
 746                 g_free(name);
 747
 748                 if (mimeinfo->node->children)
 749                         mimeview_set_multipart_tree(mimeview,
 750                                 (MimeInfo *) mimeinfo->node->children->data, &iter);
 751                 mimeinfo = mimeinfo->node->next != NULL ?
 752                                 (MimeInfo *) mimeinfo->node->next->data : NULL;
 753         }
 754 }
 755
 756 static const gchar *get_real_part_name(MimeInfo *partinfo)
 757 {
 758         const gchar *name = NULL;
 759
 760         name = procmime_mimeinfo_get_parameter(partinfo, "filename");
 761         if (name == NULL)
 762                 name = procmime_mimeinfo_get_parameter(partinfo, "name");
 763
 764         return name;
 765 }
 766
 767 static const gchar *get_part_name(MimeInfo *partinfo)
 768 {
 769         const gchar *name;
 770
 771         name = get_real_part_name(partinfo);
 772         if (name == NULL)
 773                 name = "";
 774
 775         return name;
 776 }
 777
 778 static const gchar *get_part_description(MimeInfo *partinfo)
 779 {
 780         if (partinfo->description)
 781                 return partinfo->description;
 782         else
 783                 return get_part_name(partinfo);
 784 }
 785
 786 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
 787 {
 788         FILE *fp;
 789         const gchar *fname;
 790
 791         if (!partinfo) return;
 792
 793         fname = mimeview->file;
 794         if (!fname) return;
 795
 796         if ((fp = claws_fopen(fname, "rb")) == NULL) {
 797                 FILE_OP_ERROR(fname, "claws_fopen");
 798                 return;
 799         }
 800
 801         if (fseek(fp, partinfo->offset, SEEK_SET) < 0) {
 802                 FILE_OP_ERROR(mimeview->file, "fseek");
 803                 claws_fclose(fp);
 804                 return;
 805         }
 806
 807         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 808         textview_show_part(mimeview->textview, partinfo, fp);
 809
 810         claws_fclose(fp);
 811 }
 812
 813 static MimeViewer *get_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 814 {
 815         GSList *cur;
 816         MimeViewerFactory *factory = NULL;
 817         MimeViewer *viewer = NULL;
 818         gchar *real_contenttype = NULL, *tmp;
 819
 820         real_contenttype = g_utf8_strdown((gchar *)content_type, -1);
 821
 822         for (cur = mimeviewer_factories; cur != NULL; cur = g_slist_next(cur)) {
 823                 MimeViewerFactory *curfactory = cur->data;
 824                 gint i = 0;
 825
 826                 while (curfactory->content_types[i] != NULL) {
 827                         tmp = g_utf8_strdown(curfactory->content_types[i], -1);
 828                         if (g_pattern_match_simple(tmp, real_contenttype)) {
 829                                 debug_print("%s\n", curfactory->content_types[i]);
 830                                 factory = curfactory;
 831                                 g_free(tmp);
 832                                 break;
 833                         }
 834                         g_free(tmp);
 835                         i++;
 836                 }
 837                 if (factory != NULL)
 838                         break;
 839         }
 840         g_free(real_contenttype);
 841         if (factory == NULL)
 842                 return NULL;
 843
 844         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 845                 MimeViewer *curviewer = cur->data;
 846
 847                 if (curviewer->factory == factory)
 848                         return curviewer;
 849         }
 850         viewer = factory->create_viewer();
 851         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 852                 GTK_WIDGET(viewer->get_widget(viewer)));
 853
 854         mimeview->viewers = g_slist_append(mimeview->viewers, viewer);
 855
 856         return viewer;
 857 }
 858
 859 gboolean mimeview_has_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 860 {
 861         return (get_viewer_for_content_type(mimeview, content_type) != NULL);
 862 }
 863
 864 static MimeViewer *get_viewer_for_mimeinfo(MimeView *mimeview, MimeInfo *partinfo)
 865 {
 866         gchar *content_type = NULL;
 867         MimeViewer *viewer = NULL;
 868
 869         if ((partinfo->type == MIMETYPE_APPLICATION) &&
 870             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
 871                 const gchar *filename;
 872
 873                 filename = procmime_mimeinfo_get_parameter(partinfo, "filename");
 874                 if (filename == NULL)
 875                         filename = procmime_mimeinfo_get_parameter(partinfo, "name");
 876                 if (filename != NULL)
 877                         content_type = procmime_get_mime_type(filename);
 878         } else {
 879                 content_type = procmime_get_content_type_str(partinfo->type, partinfo->subtype);
 880         }
 881
 882         if (content_type != NULL) {
 883                 viewer = get_viewer_for_content_type(mimeview, content_type);
 884                 g_free(content_type);
 885         }
 886
 887         return viewer;
 888 }
 889
 890 gboolean mimeview_show_part(MimeView *mimeview, MimeInfo *partinfo)
 891 {
 892         MimeViewer *viewer;
 893
 894         if (mimeview->messageview->partial_display_shown) {
 895                 noticeview_hide(mimeview->messageview->noticeview);
 896                 mimeview->messageview->partial_display_shown = FALSE;
 897         }
 898
 899         viewer = get_viewer_for_mimeinfo(mimeview, partinfo);
 900         if (viewer == NULL) {
 901                 if (mimeview->mimeviewer != NULL)
 902                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 903                 mimeview->mimeviewer = NULL;
 904                 return FALSE;
 905         }
 906
 907         if (mimeview->mimeviewer != NULL)
 908                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 909
 910         if (mimeview->mimeviewer != viewer)
 911                 mimeview->mimeviewer = viewer;
 912
 913         mimeview_change_view_type(mimeview, MIMEVIEW_VIEWER);
 914         viewer->mimeview = mimeview;
 915         viewer->show_mimepart(viewer, mimeview->file, partinfo);
 916
 917         return TRUE;
 918 }
 919
 920 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
 921 {
 922         TextView  *textview  = mimeview->textview;
 923         GtkWidget *focused = NULL;
 924
 925         if (mainwindow_get_mainwindow())
 926                 focused = gtkut_get_focused_child(
 927                                 GTK_CONTAINER(mainwindow_get_mainwindow()->window));
 928
 929         if ((mimeview->type != MIMEVIEW_VIEWER) &&
 930             (mimeview->type == type)) return;
 931
 932         switch (type) {
 933         case MIMEVIEW_TEXT:
 934                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 935                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 936                         GTK_WIDGET_PTR(textview)));
 937                 break;
 938         case MIMEVIEW_VIEWER:
 939                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 940                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 941                         GTK_WIDGET(mimeview->mimeviewer->get_widget(mimeview->mimeviewer))));
 942                 break;
 943         default:
 944                 return;
 945         }
 946         if (focused)
 947                 gtk_widget_grab_focus(focused);
 948         mimeview->type = type;
 949 }
 950
 951 void mimeview_clear(MimeView *mimeview)
 952 {
 953         GtkTreeModel *model;
 954
 955         if (!mimeview)
 956                 return;
 957
 958         if (g_slist_find(mimeviews, mimeview) == NULL)
 959                 return;
 960
 961         noticeview_hide(mimeview->siginfoview);
 962
 963         model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
 964         gtk_tree_store_clear(GTK_TREE_STORE(model));
 965
 966         textview_clear(mimeview->textview);
 967         if (mimeview->mimeviewer != NULL)
 968                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 969
 970         mimeview_free_mimeinfo(mimeview);
 971
 972         mimeview->mimeinfo = NULL;
 973
 974         gtk_tree_path_free(mimeview->opened);
 975         mimeview->opened = NULL;
 976
 977         g_free(mimeview->file);
 978         mimeview->file = NULL;
 979
 980         icon_list_clear(mimeview);
 981         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 982 }
 983
 984 gchar * get_message_check_signature_shortcut(MessageView *messageview) {
 985         GtkUIManager *ui_manager;
 986
 987         if (messageview->window != NULL)
 988                         ui_manager = messageview->ui_manager;
 989                 else
 990                         ui_manager = messageview->mainwin->ui_manager;
 991
 992         return cm_menu_item_get_shortcut(ui_manager, "Menu/Message/CheckSignature");
 993 }
 994
 995 static void check_signature_cb(GtkWidget *widget, gpointer user_data);
 996 static void display_full_info_cb(GtkWidget *widget, gpointer user_data);
 997
 998 static void update_signature_noticeview(MimeView *mimeview, MimeInfo *mimeinfo,
 999                                         gboolean special, SignatureStatus code)
1000 {
1001         gchar *text = NULL, *button_text = NULL;
1002         void  *func = NULL;
1003         StockPixmap icon = STOCK_PIXMAP_PRIVACY_SIGNED;
1004         SignatureStatus mycode = SIGNATURE_UNCHECKED;
1005
1006         cm_return_if_fail(mimeview != NULL);
1007         cm_return_if_fail(mimeinfo != NULL);
1008
1009         if (special)
1010                 mycode = code;
1011         else
1012                 mycode = privacy_mimeinfo_get_sig_status(mimeinfo);
1013
1014         switch (mycode) {
1015         case SIGNATURE_UNCHECKED:
1016                 button_text = _("Check signature");
1017                 func = check_signature_cb;
1018                 icon = STOCK_PIXMAP_PRIVACY_SIGNED;
1019                 break;
1020         case SIGNATURE_OK:
1021                 button_text = _("View full information");
1022                 func = display_full_info_cb;
1023                 icon = STOCK_PIXMAP_PRIVACY_PASSED;
1024                 break;
1025         case SIGNATURE_WARN:
1026                 button_text = _("View full information");
1027                 func = display_full_info_cb;
1028                 icon = STOCK_PIXMAP_PRIVACY_WARN;
1029                 break;
1030         case SIGNATURE_KEY_EXPIRED:
1031                 button_text = _("View full information");
1032                 func = display_full_info_cb;
1033                 icon = STOCK_PIXMAP_PRIVACY_EXPIRED;
1034                 break;
1035         case SIGNATURE_INVALID:
1036                 button_text = _("View full information");
1037                 func = display_full_info_cb;
1038                 icon = STOCK_PIXMAP_PRIVACY_FAILED;
1039                 break;
1040         case SIGNATURE_CHECK_FAILED:
1041         case SIGNATURE_CHECK_TIMEOUT:
1042                 button_text = _("Check again");
1043                 func = check_signature_cb;
1044                 icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
1045                 break;
1046         default:
1047                 break;
1048         }
1049         if (mycode == SIGNATURE_UNCHECKED) {
1050                 gchar *tmp = privacy_mimeinfo_sig_info_short(mimeinfo);
1051                 gchar *shortcut = get_message_check_signature_shortcut(mimeview->messageview);
1052
1053                 if (*shortcut == '\0')
1054                         text = g_strdup_printf(_("%s Click the icon to check it."), tmp);
1055                 else
1056                         text = g_strdup_printf(_("%s Click the icon or hit '%s' to check it."),
1057                                 tmp, shortcut);
1058                 g_free(tmp);
1059                 g_free(shortcut);
1060         } else if (mycode != SIGNATURE_CHECK_TIMEOUT) {
1061                 text = privacy_mimeinfo_sig_info_short(mimeinfo);
1062         } else if (mycode == SIGNATURE_CHECK_TIMEOUT) {
1063                 gchar *shortcut = get_message_check_signature_shortcut(mimeview->messageview);
1064
1065                 if (*shortcut == '\0')
1066                         text = g_strdup(_("Timeout checking the signature. Click the icon to try again."));
1067                 else
1068                         text = g_strdup_printf(_("Timeout checking the signature. Click the icon or hit '%s' to try again."), shortcut);
1069                 g_free(shortcut);
1070         }
1071
1072         noticeview_set_text(mimeview->siginfoview, text);
1073         gtk_label_set_selectable(GTK_LABEL(mimeview->siginfoview->text), TRUE);
1074
1075         g_free(text);
1076         noticeview_set_button_text(mimeview->siginfoview, NULL);
1077         noticeview_set_button_press_callback(
1078                 mimeview->siginfoview,
1079                 G_CALLBACK(func),
1080                 (gpointer) mimeview);
1081         noticeview_set_icon(mimeview->siginfoview, icon);
1082         noticeview_set_tooltip(mimeview->siginfoview, button_text);
1083
1084         icon_list_clear(mimeview);
1085         icon_list_create(mimeview, mimeview->mimeinfo);
1086 }
1087
1088 #ifdef USE_PTHREAD
1089
1090 /* reset all thread stuff, and do the cleanups we've been left to do */
1091 static void mimeview_check_data_reset(MimeView *mimeview)
1092 {
1093         gboolean must_free;
1094         gboolean must_destroy;
1095
1096         if (!mimeview->check_data)
1097                 return;
1098
1099         must_free = mimeview->check_data->free_after_use;
1100         must_destroy = mimeview->check_data->destroy_mimeview;
1101
1102         if (mimeview->check_data->cancel_th_init) {
1103                 debug_print("killing canceller thread\n");
1104                 mimeview->check_data->cancel_th_init = FALSE;
1105                 pthread_cancel(mimeview->check_data->cancel_th);
1106         }
1107
1108         if (must_free) {
1109                 debug_print("freeing deferred mimeinfo\n");
1110                 procmime_mimeinfo_free_all(&mimeview->check_data->siginfo);
1111         }
1112
1113         g_free(mimeview->check_data);
1114         mimeview->check_data = NULL;
1115
1116         if (must_destroy) {
1117                 debug_print("freeing deferred mimeview\n");
1118                 mimeview_free_mimeinfo(mimeview);
1119                 gtk_tree_path_free(mimeview->opened);
1120                 g_free(mimeview->file);
1121                 g_free(mimeview);
1122                 mimeviews = g_slist_remove(mimeviews, mimeview);
1123         }
1124 }
1125
1126 /* GUI update once the checker thread is done or killed */
1127 static gboolean mimeview_check_sig_thread_cb(void *data)
1128 {
1129         MimeView *mimeview = (MimeView *) data;
1130         MimeInfo *mimeinfo = mimeview->siginfo;
1131
1132         debug_print("mimeview_check_sig_thread_cb\n");
1133
1134         if (mimeinfo == NULL) {
1135                 /* message changed !? */
1136                 g_warning("no more siginfo!");
1137                 goto end;
1138         }
1139
1140         if (!mimeview->check_data) {
1141                 g_warning("nothing to check");
1142                 return FALSE;
1143         }
1144
1145         if (mimeview->check_data->siginfo != mimeinfo) {
1146                 /* message changed !? */
1147                 g_warning("different siginfo!");
1148                 goto end;
1149         }
1150
1151         if (mimeview->check_data->destroy_mimeview ||
1152             mimeview->check_data->free_after_use) {
1153                 debug_print("not bothering, we're changing message\n");
1154                 goto end;
1155         }
1156
1157         /* update status */
1158         if (mimeview->check_data->timeout)
1159                 update_signature_noticeview(mimeview, mimeview->siginfo,
1160                         TRUE, SIGNATURE_CHECK_TIMEOUT);
1161         else
1162                 update_signature_noticeview(mimeview, mimeview->siginfo,
1163                         FALSE, 0);
1164
1165 end:
1166         mimeview_check_data_reset(mimeview);
1167         return FALSE;
1168 }
1169
1170 /* sig checker thread */
1171 static void *mimeview_check_sig_worker_thread(void *data)
1172 {
1173         MimeView *mimeview = (MimeView *)data;
1174         MimeInfo *mimeinfo = mimeview->siginfo;
1175
1176         debug_print("checking...\n");
1177
1178         if (!mimeview->check_data)
1179                 return NULL;
1180
1181         if (mimeinfo && mimeinfo == mimeview->check_data->siginfo) {
1182                 privacy_mimeinfo_check_signature(mimeinfo);
1183                 if (mimeview->check_data && mimeview->check_data->cancel_th_init) {
1184                         mimeview->check_data->cancel_th_init = FALSE;
1185                         pthread_cancel(mimeview->check_data->cancel_th);
1186                 }
1187         } else {
1188                 /* that's strange! we changed message without
1189                  * getting killed. */
1190                 g_warning("different siginfo!");
1191                 mimeview_check_data_reset(mimeview);
1192                 return NULL;
1193         }
1194
1195         /* use g_timeout so that GUI updates is done from the
1196          * correct thread */
1197         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
1198
1199         return NULL;
1200 }
1201
1202 /* killer thread - acts when the checker didn't work fast
1203  * enough. */
1204 static void *mimeview_check_sig_cancel_thread(void *data)
1205 {
1206         MimeView *mimeview = (MimeView *)data;
1207
1208         if (!mimeview->check_data)
1209                 return NULL; /* nothing to kill ! */
1210
1211         /* wait for a few seconds... */
1212         debug_print("waiting a while\n");
1213
1214         g_usleep(5 * 1000 * 1000);
1215
1216         if (!mimeview->check_data)
1217                 return NULL; /* nothing to kill, it's done in time :) */
1218
1219         /* too late, go away checker thread */
1220         debug_print("killing checker thread\n");
1221         if (mimeview->check_data->th_init) {
1222                 mimeview->check_data->th_init = FALSE;
1223                 pthread_cancel(mimeview->check_data->th);
1224         }
1225
1226         /* tell upstream it was a timeout */
1227         mimeview->check_data->timeout = TRUE;
1228         /* use g_timeout so that GUI updates is done from the
1229          * correct thread */
1230         g_timeout_add(0,mimeview_check_sig_thread_cb,mimeview);
1231
1232         return NULL;
1233 }
1234
1235 /* get rid of the checker thread right now - used when changing the
1236  * displayed message for example. */
1237 static void mimeview_check_sig_cancel_now(MimeView *mimeview)
1238 {
1239         if (!mimeview->check_data)
1240                 return;
1241         debug_print("killing checker thread NOW\n");
1242         if (mimeview->check_data->th_init) {
1243                 mimeview->check_data->th_init = FALSE;
1244                 pthread_cancel(mimeview->check_data->th);
1245         }
1246
1247         /* tell upstream it was a timeout */
1248         mimeview->check_data->timeout = TRUE;
1249         mimeview_check_sig_thread_cb(mimeview);
1250         return;
1251 }
1252
1253 /* creates a thread to check the signature, and a second one
1254  * to kill the first one after a timeout */
1255 static void mimeview_check_sig_in_thread(MimeView *mimeview)
1256 {
1257         pthread_t th, th2;
1258         pthread_attr_t detach, detach2;
1259
1260         if (mimeview->check_data) {
1261                 g_warning("already checking it");
1262                 return;
1263         }
1264
1265         mimeview->check_data = g_new0(SigCheckData, 1);
1266         mimeview->check_data->siginfo = mimeview->siginfo;
1267         debug_print("creating thread\n");
1268
1269         /* init thread attributes and create the checker thread */
1270         if (pthread_attr_init(&detach) != 0 ||
1271             pthread_attr_setdetachstate(&detach, PTHREAD_CREATE_DETACHED) != 0 ||
1272             pthread_attr_init(&detach2) != 0 ||
1273             pthread_attr_setdetachstate(&detach2, PTHREAD_CREATE_DETACHED) != 0 ||
1274             pthread_create(&th, &detach,
1275                         mimeview_check_sig_worker_thread,
1276                         mimeview) != 0) {
1277                 /* arh. We'll do it synchronously. */
1278                 g_warning("can't create checked thread");
1279                 g_free(mimeview->check_data);
1280                 mimeview->check_data = NULL;
1281                 return;
1282         } else {
1283                 mimeview->check_data->th = th;
1284                 mimeview->check_data->th_init = TRUE;
1285         }
1286
1287         /* create the killer thread */
1288         if (pthread_create(&th2, &detach2,
1289                         mimeview_check_sig_cancel_thread,
1290                         mimeview) != 0) {
1291                 g_warning("can't create killer thread");
1292                 g_free(mimeview->check_data);
1293                 mimeview->check_data = NULL;
1294                 return;
1295         } else {
1296                 mimeview->check_data->cancel_th = th2;
1297                 mimeview->check_data->cancel_th_init = TRUE;
1298         }
1299 }
1300 #endif
1301
1302 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
1303 {
1304         MimeView *mimeview = (MimeView *) user_data;
1305         MimeInfo *mimeinfo = mimeview->siginfo;
1306
1307         if (mimeinfo == NULL)
1308                 return;
1309 #ifdef USE_PTHREAD
1310         if (mimeview->check_data)
1311                 return;
1312 #endif
1313         noticeview_set_text(mimeview->siginfoview, _("Checking signature..."));
1314         GTK_EVENTS_FLUSH();
1315 #ifdef USE_PTHREAD
1316         /* let's do it non-blocking */
1317         mimeview_check_sig_in_thread(mimeview);
1318         if (!mimeview->check_data) /* let's check syncronously */
1319 #endif
1320         {
1321                 debug_print("checking without thread\n");
1322                 privacy_mimeinfo_check_signature(mimeinfo);
1323                 update_signature_noticeview(mimeview, mimeview->siginfo, FALSE, 0);
1324         }
1325 }
1326
1327 void mimeview_check_signature(MimeView *mimeview)
1328 {
1329         check_signature_cb(NULL, mimeview);
1330 }
1331
1332 static void redisplay_email(GtkWidget *widget, gpointer user_data)
1333 {
1334         MimeView *mimeview = (MimeView *) user_data;
1335         gtk_tree_path_free(mimeview->opened);
1336         mimeview->opened = NULL;
1337         mimeview_selected(gtk_tree_view_get_selection(
1338                         GTK_TREE_VIEW(mimeview->ctree)), mimeview);
1339 }
1340
1341 static void display_full_info_cb(GtkWidget *widget, gpointer user_data)
1342 {
1343         MimeView *mimeview = (MimeView *) user_data;
1344         gchar *siginfo;
1345
1346         siginfo = privacy_mimeinfo_sig_info_full(mimeview->siginfo);
1347         textview_set_text(mimeview->textview, siginfo);
1348         g_free(siginfo);
1349         noticeview_set_button_text(mimeview->siginfoview, NULL);
1350         noticeview_set_button_press_callback(
1351                 mimeview->siginfoview,
1352                 G_CALLBACK(redisplay_email),
1353                 (gpointer) mimeview);
1354         noticeview_set_tooltip(mimeview->siginfoview, _("Go back to email"));
1355 }
1356
1357 static void update_signature_info(MimeView *mimeview, MimeInfo *selected)
1358 {
1359         MimeInfo *siginfo;
1360         MimeInfo *first_text;
1361
1362         cm_return_if_fail(mimeview != NULL);
1363         cm_return_if_fail(selected != NULL);
1364
1365         if (selected->type == MIMETYPE_MESSAGE
1366         &&  !g_ascii_strcasecmp(selected->subtype, "rfc822")) {
1367                 /* if the first text part is signed, check that */
1368                 first_text = selected;
1369                 while (first_text && first_text->type != MIMETYPE_TEXT) {
1370                         first_text = procmime_mimeinfo_next(first_text);
1371                 }
1372                 if (first_text) {
1373                         update_signature_info(mimeview, first_text);
1374                         return;
1375                 }
1376         }
1377
1378         siginfo = selected;
1379         while (siginfo != NULL) {
1380                 if (privacy_mimeinfo_is_signed(siginfo))
1381                         break;
1382                 siginfo = procmime_mimeinfo_parent(siginfo);
1383         }
1384         mimeview->siginfo = siginfo;
1385
1386         /* This shortcut boolean is there to correctly set the menu's
1387          * CheckSignature item sensitivity without killing performance
1388          * each time the menu sensitiveness is updated (a lot).
1389          */
1390         mimeview->signed_part = (siginfo != NULL);
1391
1392         if (siginfo == NULL) {
1393                 noticeview_hide(mimeview->siginfoview);
1394                 return;
1395         }
1396
1397         update_signature_noticeview(mimeview, siginfo, FALSE, 0);
1398         noticeview_show(mimeview->siginfoview);
1399 }
1400
1401 static void mimeview_selected(GtkTreeSelection *selection, MimeView *mimeview)
1402 {
1403         GtkTreeView *ctree = GTK_TREE_VIEW(mimeview->ctree);
1404         GtkTreeModel *model;
1405         GtkTreeIter iter;
1406         GtkTreePath *path;
1407         MimeInfo *partinfo;
1408         MainWindow *mainwin;
1409
1410         selection = gtk_tree_view_get_selection(ctree);
1411         if (!gtk_tree_selection_get_selected(selection, &model, &iter))
1412                 return;
1413
1414         path = gtk_tree_model_get_path(model, &iter);
1415
1416         if (mimeview->opened && !gtk_tree_path_compare(mimeview->opened, path)) {
1417                 gtk_tree_path_free(path);
1418                 return;
1419         }
1420
1421         gtk_tree_path_free(mimeview->opened);
1422         mimeview->opened = path;
1423         mimeview->spec_part = NULL;
1424         gtk_tree_view_scroll_to_cell(ctree, path, NULL, TRUE, 0.5, 0);
1425
1426         partinfo = mimeview_get_node_part(mimeview, path);
1427         if (!partinfo) return;
1428
1429         /* ungrab the mouse event */
1430         if (gtk_widget_has_grab(GTK_WIDGET(ctree))) {
1431                 gtk_grab_remove(GTK_WIDGET(ctree));
1432                 if (gdk_pointer_is_grabbed())
1433                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1434         }
1435
1436         mimeview->textview->default_text = FALSE;
1437
1438         update_signature_info(mimeview, partinfo);
1439
1440         if (!mimeview_show_part(mimeview, partinfo)) {
1441                 switch (partinfo->type) {
1442                 case MIMETYPE_TEXT:
1443                 case MIMETYPE_MESSAGE:
1444                 case MIMETYPE_MULTIPART:
1445                         mimeview_show_message_part(mimeview, partinfo);
1446
1447                         break;
1448                 default:
1449                         mimeview->textview->default_text = TRUE;
1450                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1451                         textview_clear(mimeview->textview);
1452                         textview_show_mime_part(mimeview->textview, partinfo);
1453                         break;
1454                 }
1455         }
1456         mainwin = mainwindow_get_mainwindow();
1457         if (mainwin)
1458                 main_window_set_menu_sensitive(mainwin);
1459
1460         if (mimeview->siginfo && privacy_auto_check_signatures(mimeview->siginfo)
1461         &&  privacy_mimeinfo_get_sig_status(mimeview->siginfo) == SIGNATURE_UNCHECKED) {
1462                 mimeview_check_signature(mimeview);
1463         }
1464 }
1465
1466 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
1467                                     MimeView *mimeview)
1468 {
1469         GtkTreeSelection *selection;
1470         GtkTreeIter iter;
1471
1472         if (!event) return FALSE;
1473
1474         if (event->button == 2 || event->button == 3) {
1475                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(widget));
1476                 if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
1477                         return FALSE;
1478
1479                 gtk_tree_selection_select_iter(selection, &iter);
1480         }
1481         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
1482
1483         return FALSE;
1484 }
1485
1486 static gboolean mimeview_scrolled(GtkWidget *widget, GdkEventScroll *event,
1487                                     MimeView *mimeview)
1488 {
1489         GtkVScrollbutton *scrollbutton = (GtkVScrollbutton *)mimeview->scrollbutton;
1490         if (event->direction == GDK_SCROLL_UP) {
1491                 scrollbutton->scroll_type = GTK_SCROLL_STEP_BACKWARD;
1492         } else {
1493                 scrollbutton->scroll_type = GTK_SCROLL_STEP_FORWARD;
1494         }
1495         gtk_vscrollbutton_scroll(scrollbutton);
1496         return TRUE;
1497 }
1498
1499 /* from gdkevents.c */
1500 #define DOUBLE_CLICK_TIME 250
1501
1502 static gboolean part_button_pressed(MimeView *mimeview, GdkEventButton *event,
1503                                     MimeInfo *partinfo)
1504 {
1505         static MimeInfo *lastinfo;
1506         static guint32 lasttime;
1507
1508         if (event->button == 2 ||
1509             (event->button == 1 && (event->time - lasttime) < DOUBLE_CLICK_TIME && lastinfo == partinfo)) {
1510                 /* call external program for image, audio or html */
1511                 mimeview_launch(mimeview, partinfo);
1512                 return TRUE;
1513         } else if (event->button == 3) {
1514                 MainWindow *mainwin = mainwindow_get_mainwindow();
1515
1516                 if (partinfo && (partinfo->type == MIMETYPE_MESSAGE ||
1517                                  partinfo->type == MIMETYPE_IMAGE ||
1518                                  partinfo->type == MIMETYPE_MULTIPART))
1519                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/DisplayAsText", FALSE);
1520                 else
1521                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/DisplayAsText", TRUE);
1522 #ifndef G_OS_WIN32
1523                 if (partinfo &&
1524                     partinfo->type == MIMETYPE_APPLICATION &&
1525                     !g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))
1526                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/Open", FALSE);
1527                 else
1528 #endif
1529                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/Open", TRUE);
1530                 if (mainwin)
1531                         main_window_set_menu_sensitive(mainwin);
1532                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1533                                   "pop_partinfo", partinfo);
1534
1535                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
1536                                NULL, NULL, NULL, NULL,
1537                                event->button, event->time);
1538                 return TRUE;
1539         }
1540
1541         lastinfo = partinfo;
1542         lasttime = event->time;
1543         return FALSE;
1544 }
1545
1546
1547 gboolean mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
1548 {
1549         return mimeview_key_pressed(mimeview->ctree, event, mimeview);
1550 }
1551
1552 void mimeview_select_next_part(MimeView *mimeview)
1553 {
1554         GtkTreeView *ctree = GTK_TREE_VIEW(mimeview->ctree);
1555         GtkTreeModel *model = gtk_tree_view_get_model(ctree);
1556         GtkTreeSelection *selection;
1557         GtkTreeIter iter;
1558         GtkTreePath *path;
1559         MimeInfo *partinfo = NULL;
1560         gboolean has_next;
1561
1562         if (!mimeview->opened) return;
1563
1564         gtk_tree_model_get_iter(model, &iter, mimeview->opened);
1565         path = gtk_tree_model_get_path(model, &iter);
1566 skip:
1567         has_next = mimeview_tree_next(model, path);
1568         if (!has_next) {
1569                 has_next = gtk_tree_model_get_iter_first(model, &iter);
1570                 gtk_tree_path_free(path);
1571                 path = gtk_tree_model_get_path(model, &iter);
1572         }
1573
1574         if (has_next) {
1575                 partinfo = mimeview_get_node_part(mimeview, path);
1576                 if (partinfo->type == MIMETYPE_MULTIPART ||
1577                     (!prefs_common.show_inline_attachments && partinfo->id))
1578                         goto skip;
1579                 selection = gtk_tree_view_get_selection(ctree);
1580                 gtk_tree_selection_select_path(selection, path);
1581                 icon_list_toggle_by_mime_info(mimeview, partinfo);
1582         }
1583
1584         gtk_tree_path_free(path);
1585 }
1586
1587 void mimeview_select_prev_part(MimeView *mimeview)
1588 {
1589         GtkTreeView *ctree = GTK_TREE_VIEW(mimeview->ctree);
1590         GtkTreeModel *model = gtk_tree_view_get_model(ctree);
1591         GtkTreeSelection *selection;
1592         GtkTreeIter iter;
1593         GtkTreePath *path;
1594         MimeInfo *partinfo = NULL;
1595         gboolean has_prev;
1596
1597         if (!mimeview->opened) return;
1598
1599         gtk_tree_model_get_iter(model, &iter, mimeview->opened);
1600         path = gtk_tree_model_get_path(model, &iter);
1601 skip:
1602         has_prev = mimeview_tree_prev(mimeview, path);
1603         if (!has_prev) {
1604                 while (mimeview_tree_next(model, path)) {}
1605                 has_prev = TRUE;
1606         }
1607
1608         if (has_prev) {
1609                 partinfo = mimeview_get_node_part(mimeview, path);
1610                 if (partinfo->type == MIMETYPE_MULTIPART ||
1611                     (!prefs_common.show_inline_attachments && partinfo->id))
1612                         goto skip;
1613                 selection = gtk_tree_view_get_selection(ctree);
1614                 gtk_tree_selection_select_path(selection, path);
1615                 icon_list_toggle_by_mime_info(mimeview, partinfo);
1616         }
1617
1618         gtk_tree_path_free(path);
1619 }
1620
1621 #define BREAK_ON_MODIFIER_KEY() \
1622         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1623
1624 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1625                                  MimeView *mimeview)
1626 {
1627         SummaryView *summaryview;
1628
1629         if (!event) return FALSE;
1630         if (!mimeview->opened) return FALSE;
1631
1632         summaryview = mimeview->messageview->mainwin->summaryview;
1633
1634         if (summaryview && quicksearch_has_focus(summaryview->quicksearch))
1635                 return FALSE;
1636
1637         switch (event->keyval) {
1638         case GDK_KEY_Home:
1639         case GDK_KEY_End:
1640                 textview_scroll_max(mimeview->textview,
1641                                     (event->keyval == GDK_KEY_Home));
1642                 return TRUE;
1643         case GDK_KEY_Page_Down:
1644         case GDK_KEY_space:
1645                 if (mimeview_scroll_page(mimeview,
1646                                          (event->state & GDK_SHIFT_MASK) != 0))
1647                         return TRUE;
1648
1649                 if (!(event->state & GDK_SHIFT_MASK))
1650                         mimeview_select_next_part(mimeview);
1651                 return TRUE;
1652         case GDK_KEY_Page_Up:
1653         case GDK_KEY_BackSpace:
1654                 mimeview_scroll_page(mimeview, TRUE);
1655                 return TRUE;
1656         case GDK_KEY_Return:
1657         case GDK_KEY_KP_Enter:
1658                 mimeview_scroll_one_line(mimeview,
1659                                          (event->state & GDK_MOD1_MASK) != 0);
1660                 return TRUE;
1661         case GDK_KEY_Up:
1662         case GDK_KEY_Down:
1663                 mimeview_scroll_one_line(mimeview, (event->keyval == GDK_KEY_Up));
1664                 return TRUE;
1665         default:
1666                 break;
1667         }
1668
1669         if (mimeview->messageview->new_window) return FALSE;
1670
1671         return summary_pass_key_press_event(summaryview, event);
1672 }
1673
1674 static void mimeview_drag_data_get(GtkWidget        *widget,
1675                                    GdkDragContext   *drag_context,
1676                                    GtkSelectionData *selection_data,
1677                                    guint             info,
1678                                    guint             time,
1679                                    MimeView         *mimeview)
1680 {
1681         gchar *filename = NULL, *uriname, *tmp;
1682         MimeInfo *partinfo;
1683         gint err;
1684         gint count = 0;
1685
1686         if (!mimeview->opened) return;
1687         if (!mimeview->file) return;
1688
1689         partinfo = mimeview_get_selected_part(mimeview);
1690         if (!partinfo) return;
1691
1692         if (strlen(get_part_name(partinfo)) > 0) {
1693                 filename = g_path_get_basename(get_part_name(partinfo));
1694                 if (*filename == '\0') return;
1695         } else if (partinfo->type == MIMETYPE_MESSAGE
1696                    && !g_ascii_strcasecmp(partinfo->subtype, "rfc822")) {
1697                 gchar *name = NULL;
1698                 GPtrArray *headers = NULL;
1699                 FILE *fp;
1700
1701                 fp = claws_fopen(partinfo->data.filename, "rb");
1702                 if (fp != NULL && fseek(fp, partinfo->offset, SEEK_SET) == 0) {
1703                         headers = procheader_get_header_array_asis(fp);
1704                         if (headers) {
1705                                 gint i;
1706                                 for (i = 0; i < headers->len; i++) {
1707                                         Header *header = g_ptr_array_index(headers, i);
1708                                         if (procheader_headername_equal(header->name, "Subject")) {
1709                                                 unfold_line(header->body);
1710                                                 name = g_strconcat(header->body, ".txt", NULL);
1711                                                 subst_for_filename(name);
1712                                         }
1713                                 }
1714                                 procheader_header_array_destroy(headers);
1715                         }
1716                 }
1717                 if (fp != NULL)
1718                         claws_fclose(fp);
1719                 if (name)
1720                         filename = g_path_get_basename(name);
1721                 g_free(name);
1722         }
1723         if (filename == NULL)
1724                 filename = g_path_get_basename("Unnamed part");
1725
1726         if (!g_utf8_validate(filename, -1, NULL))
1727                 tmp = conv_codeset_strdup(filename,
1728                                 conv_get_locale_charset_str(),
1729                                 CS_UTF_8);
1730         else
1731                 tmp = g_strdup(filename);
1732
1733         if (tmp == NULL) {
1734                 g_warning("filename not in UTF-8");
1735                 tmp = g_strdup("Unnamed part");
1736         }
1737         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1738                                tmp, NULL);
1739
1740 check_new_file:
1741         if (is_file_exist(filename)) {
1742                 gchar *ext = NULL;
1743                 gchar *prefix = NULL;
1744                 gchar *new_name = NULL;
1745                 if (strrchr(tmp, '.')) {
1746                         prefix = g_strdup(tmp);
1747                         ext = g_strdup(strrchr(tmp, '.'));
1748                         *(strrchr(prefix, '.')) = '\0';
1749                 } else {
1750                         prefix = g_strdup(tmp);
1751                         ext = g_strdup("");
1752                 }
1753                 count++;
1754                 new_name = g_strdup_printf("%s.%d%s", prefix, count, ext);
1755                 g_free(prefix);
1756                 g_free(ext);
1757                 g_free(filename);
1758                 filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1759                                new_name, NULL);
1760                 g_free(new_name);
1761                 goto check_new_file;
1762         }
1763
1764         g_free(tmp);
1765
1766         if ((err = procmime_get_part(filename, partinfo)) < 0)
1767                 alertpanel_error
1768                         (_("Couldn't save the part of multipart message: %s"),
1769                                 g_strerror(-err));
1770
1771         tmp = g_filename_to_uri(filename, NULL, NULL);
1772         uriname = g_strconcat(tmp, "\r\n", NULL);
1773         g_free(tmp);
1774
1775         gtk_selection_data_set(selection_data,
1776                    gtk_selection_data_get_target(selection_data), 8,
1777                                (guchar *)uriname, strlen(uriname));
1778
1779         g_free(uriname);
1780         g_free(filename);
1781 }
1782
1783 /**
1784  * Returns a filename (with path) for an attachment
1785  * \param partinfo The attachment to save
1786  * \param basedir The target directory
1787  * \param number Used for dummy filename if attachment is unnamed
1788  */
1789 static gchar *mimeview_get_filename_for_part(MimeInfo *partinfo,
1790                                       const gchar *basedir,
1791                                       gint number)
1792 {
1793         gchar *fullname;
1794         gchar *filename;
1795
1796         filename = g_strdup(get_part_name(partinfo));
1797         if (!filename || !*filename) {
1798                 g_free(filename);
1799                 filename = g_strdup_printf("noname.%d", number);
1800         }
1801
1802         if (!g_utf8_validate(filename, -1, NULL)) {
1803                 gchar *tmp = conv_filename_to_utf8(filename);
1804                 g_free(filename);
1805                 filename = tmp;
1806         }
1807
1808         subst_for_filename(filename);
1809
1810         fullname = g_strconcat
1811                 (basedir, G_DIR_SEPARATOR_S, (g_path_is_absolute(filename))
1812                  ? &filename[1] : filename, NULL);
1813
1814         g_free(filename);
1815         filename = conv_filename_from_utf8(fullname);
1816         g_free(fullname);
1817         return filename;
1818 }
1819
1820 /**
1821  * Write a single attachment to file
1822  * \param filename Filename with path
1823  * \param partinfo Attachment to save
1824  */
1825 static gboolean mimeview_write_part(const gchar *filename,
1826                                     MimeInfo *partinfo,
1827                                     gboolean handle_error)
1828 {
1829         gchar *dir;
1830         gint err;
1831
1832         dir= g_path_get_dirname(filename);
1833         if (!is_dir_exist(dir))
1834                 make_dir_hier(dir);
1835         g_free(dir);
1836
1837         if (is_file_exist(filename)) {
1838                 AlertValue aval;
1839                 gchar *res;
1840                 gchar *tmp;
1841
1842                 if (!g_utf8_validate(filename, -1, NULL))
1843                         tmp = conv_filename_to_utf8(filename);
1844                 else
1845                         tmp = g_strdup(filename);
1846
1847                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1848                                       tmp);
1849                 g_free(tmp);
1850                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
1851                                   GTK_STOCK_OK, NULL, ALERTFOCUS_FIRST);
1852                 g_free(res);
1853                 if (G_ALERTALTERNATE != aval) return FALSE;
1854         }
1855
1856         if ((err = procmime_get_part(filename, partinfo)) < 0) {
1857                 debug_print("error saving MIME part: %d\n", err);
1858                 if (handle_error)
1859                         alertpanel_error
1860                                 (_("Couldn't save the part of multipart message: %s"),
1861                                  g_strerror(-err));
1862                 return FALSE;
1863         }
1864
1865         return TRUE;
1866 }
1867
1868 static AlertValue mimeview_save_all_error_ask(gint n)
1869 {
1870         gchar *message = g_strdup_printf(
1871                 _("An error has occurred while saving message part #%d. "
1872                 "Do you want to cancel operation or skip error and "
1873                 "continue?"), n);
1874         AlertValue av = alertpanel_full(_("Error saving all message parts"),
1875                 message, GTK_STOCK_CANCEL, _("Skip"), _("Skip all"),
1876                 ALERTFOCUS_FIRST, FALSE, NULL, ALERT_WARNING);
1877         g_free(message);
1878         return av;
1879 }
1880
1881 static void mimeview_save_all_info(gint errors, gint total)
1882 {
1883         if (!errors) {
1884                 gchar *msg = g_strdup_printf(
1885                                 ngettext("%d file saved successfully.",
1886                                         "%d files saved successfully.",
1887                                         total),
1888                                 total);
1889                 alertpanel_notice("%s", msg);
1890                 g_free(msg);
1891         } else {
1892                 gchar *msg1 = g_strdup_printf(
1893                                 ngettext("%d file saved successfully",
1894                                         "%d files saved successfully",
1895                                         total - errors),
1896                                 total - errors);
1897                 gchar *msg2 = g_strdup_printf(
1898                                 ngettext("%s, %d file failed.",
1899                                         "%s, %d files failed.",
1900                                         errors),
1901                                 msg1, errors);
1902                 alertpanel_warning("%s", msg2);
1903                 g_free(msg2);
1904                 g_free(msg1);
1905         }
1906 }
1907
1908 /**
1909  * Menu callback: Save all attached files
1910  * \param mimeview Current display
1911  */
1912 static void mimeview_save_all(MimeView *mimeview)
1913 {
1914         MimeInfo *partinfo;
1915         gchar *dirname;
1916         gchar *startdir = NULL;
1917         gint number = 1, errors = 0;
1918         gboolean skip_errors = FALSE;
1919
1920         if (!mimeview->opened) return;
1921         if (!mimeview->file) return;
1922         if (!mimeview->mimeinfo) return;
1923
1924         partinfo = mimeview->mimeinfo;
1925         if (prefs_common.attach_save_dir && *prefs_common.attach_save_dir)
1926                 startdir = g_strconcat(prefs_common.attach_save_dir, G_DIR_SEPARATOR_S, NULL);
1927         else
1928                 startdir = g_strdup(get_home_dir());
1929
1930         manage_window_focus_in(gtk_widget_get_ancestor(mimeview->hbox, GTK_TYPE_WINDOW), NULL, NULL);
1931         dirname = filesel_select_file_save_folder(_("Select destination folder"), startdir);
1932         if (!dirname) {
1933                 g_free(startdir);
1934                 return;
1935         }
1936
1937         if (!is_dir_exist (dirname)) {
1938                 alertpanel_error(_("'%s' is not a directory."), dirname);
1939                 g_free(startdir);
1940                 g_free(dirname);
1941                 return;
1942         }
1943
1944         if (dirname[strlen(dirname)-1] == G_DIR_SEPARATOR)
1945                 dirname[strlen(dirname)-1] = '\0';
1946
1947         /* Skip the first part, that is sometimes DISPOSITIONTYPE_UNKNOWN */
1948         if (partinfo && partinfo->type == MIMETYPE_MESSAGE)
1949                 partinfo = procmime_mimeinfo_next(partinfo);
1950         if (partinfo && partinfo->type == MIMETYPE_MULTIPART) {
1951                 partinfo = procmime_mimeinfo_next(partinfo);
1952                 if (partinfo && partinfo->type == MIMETYPE_TEXT)
1953                         partinfo = procmime_mimeinfo_next(partinfo);
1954         }
1955
1956         while (partinfo != NULL) {
1957                 if (partinfo->type != MIMETYPE_MESSAGE &&
1958                     partinfo->type != MIMETYPE_MULTIPART &&
1959                     (partinfo->disposition != DISPOSITIONTYPE_INLINE
1960                      || get_real_part_name(partinfo) != NULL)) {
1961                         gchar *filename = mimeview_get_filename_for_part(
1962                                 partinfo, dirname, number++);
1963
1964                         gboolean ok = mimeview_write_part(filename, partinfo, FALSE);
1965                         g_free(filename);
1966                         if (!ok) {
1967                                 ++errors;
1968                                 if (!skip_errors) {
1969                                         AlertValue av = mimeview_save_all_error_ask(number - 1);
1970                                         skip_errors = (av == G_ALERTOTHER);
1971                                         if (av == G_ALERTDEFAULT) /* cancel */
1972                                                 break;
1973                                 }
1974                         }
1975                 }
1976                 partinfo = procmime_mimeinfo_next(partinfo);
1977         }
1978
1979         g_free(prefs_common.attach_save_dir);
1980         g_free(startdir);
1981         prefs_common.attach_save_dir = g_filename_to_utf8(dirname,
1982                                         -1, NULL, NULL, NULL);
1983         g_free(dirname);
1984
1985         mimeview_save_all_info(errors, number - 1);
1986 }
1987
1988 static MimeInfo *mimeview_get_part_to_use(MimeView *mimeview)
1989 {
1990         MimeInfo *partinfo = NULL;
1991         if (mimeview->spec_part) {
1992                 partinfo = mimeview->spec_part;
1993                 mimeview->spec_part = NULL;
1994         } else {
1995                 partinfo = (MimeInfo *) g_object_get_data
1996                          (G_OBJECT(mimeview->popupmenu),
1997                          "pop_partinfo");
1998                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1999                                   "pop_partinfo", NULL);
2000                 if (!partinfo) {
2001                         partinfo = mimeview_get_selected_part(mimeview);
2002                 }
2003         }
2004
2005         return partinfo;
2006 }
2007 /**
2008  * Menu callback: Save the selected attachment
2009  * \param mimeview Current display
2010  */
2011 void mimeview_save_as(MimeView *mimeview)
2012 {
2013         gchar *filename;
2014         gchar *filepath = NULL;
2015         gchar *filedir = NULL;
2016         MimeInfo *partinfo;
2017         gchar *partname = NULL;
2018
2019         if (!mimeview->opened) return;
2020         if (!mimeview->file) return;
2021
2022         partinfo = mimeview_get_part_to_use(mimeview);
2023
2024         cm_return_if_fail(partinfo != NULL);
2025
2026         if (get_part_name(partinfo) == NULL) {
2027                 return;
2028         }
2029         partname = g_strdup(get_part_name(partinfo));
2030
2031         if (!g_utf8_validate(partname, -1, NULL)) {
2032                 gchar *tmp = conv_filename_to_utf8(partname);
2033                 if (!tmp) {
2034                         tmp = conv_codeset_strdup(partname,
2035                                 conv_get_locale_charset_str(),
2036                                 CS_UTF_8);
2037                 }
2038                 if (tmp) {
2039                         g_free(partname);
2040                         partname = tmp;
2041                 }
2042         }
2043
2044         subst_for_filename(partname);
2045
2046         if (prefs_common.attach_save_dir && *prefs_common.attach_save_dir)
2047                 filepath = g_strconcat(prefs_common.attach_save_dir,
2048                                        G_DIR_SEPARATOR_S, partname, NULL);
2049         else
2050                 filepath = g_strdup(partname);
2051
2052         g_free(partname);
2053
2054         manage_window_focus_in(gtk_widget_get_ancestor(mimeview->hbox, GTK_TYPE_WINDOW), NULL, NULL);
2055         filename = filesel_select_file_save(_("Save as"), filepath);
2056         if (!filename) {
2057                 g_free(filepath);
2058                 return;
2059         }
2060
2061         mimeview_write_part(filename, partinfo, TRUE);
2062
2063         filedir = g_path_get_dirname(filename);
2064         if (filedir && strcmp(filedir, ".")) {
2065                 g_free(prefs_common.attach_save_dir);
2066                 prefs_common.attach_save_dir = g_filename_to_utf8(filedir, -1, NULL, NULL, NULL);
2067         }
2068
2069         g_free(filedir);
2070         g_free(filepath);
2071 }
2072
2073 void mimeview_display_as_text(MimeView *mimeview)
2074 {
2075         MimeInfo *partinfo;
2076
2077         if (!mimeview->opened) return;
2078
2079         partinfo = mimeview_get_part_to_use(mimeview);
2080         mimeview_select_mimepart_icon(mimeview, partinfo);
2081         cm_return_if_fail(partinfo != NULL);
2082         mimeview_show_message_part(mimeview, partinfo);
2083 }
2084
2085 void mimeview_launch(MimeView *mimeview, MimeInfo *partinfo)
2086 {
2087         gchar *filename;
2088         gint err;
2089
2090         if (!mimeview->opened) return;
2091         if (!mimeview->file) return;
2092
2093         if (!partinfo)
2094                 partinfo = mimeview_get_part_to_use(mimeview);
2095
2096         cm_return_if_fail(partinfo != NULL);
2097
2098         filename = procmime_get_tmp_file_name(partinfo);
2099
2100         if ((err = procmime_get_part(filename, partinfo)) < 0)
2101                 alertpanel_error
2102                         (_("Couldn't save the part of multipart message: %s"),
2103                                 g_strerror(-err));
2104         else
2105                 mimeview_view_file(filename, partinfo, NULL, mimeview);
2106
2107         g_free(filename);
2108 }
2109
2110 #ifndef G_OS_WIN32
2111 void mimeview_open_with(MimeView *mimeview)
2112 {
2113         MimeInfo *partinfo;
2114
2115         if (!mimeview) return;
2116         if (!mimeview->opened) return;
2117         if (!mimeview->file) return;
2118
2119         partinfo = mimeview_get_part_to_use(mimeview);
2120
2121         mimeview_open_part_with(mimeview, partinfo, FALSE);
2122 }
2123
2124 static void mimeview_open_part_with(MimeView *mimeview, MimeInfo *partinfo, gboolean automatic)
2125 {
2126         gchar *filename;
2127         gchar *cmd;
2128         gchar *mime_command = NULL;
2129         gchar *content_type = NULL;
2130         gint err;
2131
2132         cm_return_if_fail(partinfo != NULL);
2133
2134         filename = procmime_get_tmp_file_name(partinfo);
2135
2136         if ((err = procmime_get_part(filename, partinfo)) < 0) {
2137                 alertpanel_error
2138                         (_("Couldn't save the part of multipart message: %s"),
2139                                 g_strerror(-err));
2140                 g_free(filename);
2141                 return;
2142         }
2143
2144         if (!prefs_common.mime_open_cmd_history)
2145                 prefs_common.mime_open_cmd_history =
2146                         add_history(NULL, prefs_common.mime_open_cmd);
2147
2148         if ((partinfo->type == MIMETYPE_APPLICATION) &&
2149             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
2150                 /* guess content-type from filename */
2151                 content_type = procmime_get_mime_type(filename);
2152         }
2153         if (content_type == NULL) {
2154                 content_type = procmime_get_content_type_str(partinfo->type,
2155                         partinfo->subtype);
2156         }
2157
2158         if ((partinfo->type == MIMETYPE_TEXT && !strcmp(partinfo->subtype, "html"))
2159         && prefs_common_get_uri_cmd() && prefs_common.uri_cmd[0]) {
2160                 mime_command = g_strdup(prefs_common_get_uri_cmd());
2161                 g_free(content_type);
2162                 content_type = NULL;
2163         } else if (partinfo->type != MIMETYPE_TEXT || !prefs_common_get_ext_editor_cmd()
2164         ||  !prefs_common_get_ext_editor_cmd()[0]) {
2165                 mime_command = mailcap_get_command_for_type(content_type, filename);
2166         } else {
2167                 mime_command = g_strdup(prefs_common_get_ext_editor_cmd());
2168                 g_free(content_type);
2169                 content_type = NULL;
2170         }
2171         if (mime_command == NULL) {
2172                 /* try with extension this time */
2173                 g_free(content_type);
2174                 content_type = procmime_get_mime_type(filename);
2175                 mime_command = mailcap_get_command_for_type(content_type, filename);
2176         }
2177
2178         if (mime_command == NULL)
2179                 automatic = FALSE;
2180
2181         if (!automatic) {
2182                 gboolean remember = FALSE;
2183                 if (content_type != NULL)
2184                         cmd = input_dialog_combo_remember
2185                                 (_("Open with"),
2186                                  _("Enter the command-line to open file:\n"
2187                                    "('%s' will be replaced with file name)"),
2188                                  mime_command ? mime_command : prefs_common.mime_open_cmd,
2189                                  prefs_common.mime_open_cmd_history, &remember);
2190                 else
2191                         cmd = input_dialog_combo
2192                                 (_("Open with"),
2193                                  _("Enter the command-line to open file:\n"
2194                                    "('%s' will be replaced with file name)"),
2195                                  mime_command ? mime_command : prefs_common.mime_open_cmd,
2196                                  prefs_common.mime_open_cmd_history);
2197                 if (cmd && remember) {
2198                         mailcap_update_default(content_type, cmd);
2199                 }
2200                 g_free(mime_command);
2201         } else {
2202                 cmd = mime_command;
2203         }
2204         if (cmd) {
2205                 mimeview_view_file(filename, partinfo, cmd, mimeview);
2206                 g_free(prefs_common.mime_open_cmd);
2207                 prefs_common.mime_open_cmd = cmd;
2208                 prefs_common.mime_open_cmd_history =
2209                         add_history(prefs_common.mime_open_cmd_history, cmd);
2210         }
2211
2212         g_free(content_type);
2213         g_free(filename);
2214 }
2215 #endif
2216
2217 static void mimeview_send_to(MimeView *mimeview, MimeInfo *partinfo)
2218 {
2219         GList *attach_file = NULL;
2220         AttachInfo *ainfo = NULL;
2221         gchar *filename;
2222         gint err;
2223
2224         if (!mimeview->opened) return;
2225         if (!mimeview->file) return;
2226
2227         cm_return_if_fail(partinfo != NULL);
2228
2229         filename = procmime_get_tmp_file_name(partinfo);
2230
2231         if (!(err = procmime_get_part(filename, partinfo))) {
2232                 ainfo = g_new0(AttachInfo, 1);
2233                 ainfo->file = filename;
2234                 ainfo->name = g_strdup(get_part_name(partinfo));
2235                 ainfo->content_type = procmime_get_content_type_str(
2236                                         partinfo->type, partinfo->subtype);
2237                 ainfo->charset = g_strdup(procmime_mimeinfo_get_parameter(
2238                                         partinfo, "charset"));
2239                 attach_file = g_list_append(attach_file, ainfo);
2240
2241                 compose_new(NULL, NULL, attach_file);
2242
2243                 g_free(ainfo->name);
2244                 g_free(ainfo->content_type);
2245                 g_free(ainfo->charset);
2246                 g_free(ainfo);
2247                 g_list_free(attach_file);
2248         } else
2249                 alertpanel_error
2250                         (_("Couldn't save the part of multipart message: %s"),
2251                                 g_strerror(-err));
2252         g_free(filename);
2253 }
2254
2255 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
2256                                const gchar *cmd, MimeView *mimeview)
2257 {
2258 #ifndef G_OS_WIN32
2259         gchar *p;
2260         gchar buf[BUFFSIZE];
2261
2262         if (cmd == NULL)
2263                 mimeview_open_part_with(mimeview, partinfo, TRUE);
2264         else {
2265                 if ((p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2266                     !strchr(p + 2, '%')) {
2267                         g_snprintf(buf, sizeof(buf), cmd, filename);
2268                         if (!prefs_common.save_parts_readwrite)
2269                                 g_chmod(filename, S_IRUSR);
2270                         else
2271                                 g_chmod(filename, S_IRUSR|S_IWUSR);
2272                 } else {
2273                         g_warning("MIME viewer command-line is invalid: '%s'", cmd);
2274                         mimeview_open_part_with(mimeview, partinfo, FALSE);
2275                 }
2276                 if (execute_command_line(buf, TRUE, NULL) != 0) {
2277                         if (!prefs_common.save_parts_readwrite)
2278                                 g_chmod(filename, S_IRUSR|S_IWUSR);
2279                         mimeview_open_part_with(mimeview, partinfo, FALSE);
2280                 }
2281         }
2282 #else
2283         SHFILEINFO file_info;
2284         GError *error = NULL;
2285         gunichar2 *fn16 = g_utf8_to_utf16(filename, -1, NULL, NULL, &error);
2286
2287         if (error != NULL) {
2288                 alertpanel_error(_("Could not convert attachment name to UTF-16:\n\n%s"),
2289                                         error->message);
2290                 debug_print("filename '%s' conversion to UTF-16 failed\n", filename);
2291                 g_error_free(error);
2292                 return;
2293         }
2294
2295         if ((SHGetFileInfo((LPCWSTR)fn16, 0, &file_info, sizeof(SHFILEINFO), SHGFI_EXETYPE)) != 0) {
2296                 AlertValue val = alertpanel_full(_("Execute untrusted binary?"),
2297                                       _("This attachment is an executable file. Executing "
2298                                         "untrusted binaries is dangerous and could compromise "
2299                                         "your computer.\n\n"
2300                                         "Do you want to run this file?"), GTK_STOCK_CANCEL,
2301                                         _("Run binary"),
2302                                       NULL, ALERTFOCUS_FIRST, FALSE, NULL, ALERT_WARNING);
2303                 if (val == G_ALERTALTERNATE) {
2304                         debug_print("executing binary\n");
2305                         ShellExecute(NULL, L"open", (LPCWSTR)fn16, NULL, NULL, SW_SHOW);
2306                 }
2307         } else {
2308                 ShellExecute(NULL, L"open", (LPCWSTR)fn16, NULL, NULL, SW_SHOW);
2309         }
2310
2311         g_free(fn16);
2312
2313 #endif
2314 }
2315
2316 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
2317 {
2318         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
2319 }
2320
2321 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
2322 {
2323         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
2324 }
2325
2326 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
2327 {
2328         GSList *mimeview_list, *viewer_list;
2329
2330         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
2331                 MimeView *mimeview = (MimeView *) mimeview_list->data;
2332
2333                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
2334                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
2335                         mimeview->mimeviewer = NULL;
2336                 }
2337
2338                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
2339                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
2340
2341                         mimeviewer->destroy_viewer(mimeviewer);
2342                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
2343                 }
2344         }
2345
2346         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
2347 }
2348
2349 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
2350 {
2351         gint      num;
2352         MimeInfo *partinfo;
2353
2354         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
2355         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
2356
2357         if (event->button == 1) {
2358                 icon_selected(mimeview, num, partinfo);
2359                 gtk_widget_grab_focus(button);
2360                 icon_list_toggle_by_mime_info(mimeview, partinfo);
2361         }
2362         part_button_pressed(mimeview, event, partinfo);
2363
2364         return FALSE;
2365 }
2366
2367 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
2368 {
2369         GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
2370         GtkTreeIter iter;
2371         GtkTreePath *path;
2372         MimeInfo *curr = NULL;
2373
2374         if (!gtk_tree_model_get_iter_first(model, &iter))
2375                 return;
2376         path = gtk_tree_model_get_path(model, &iter);
2377
2378         do {
2379                 gtk_tree_model_get_iter(model, &iter, path);
2380                 gtk_tree_model_get(model, &iter, COL_DATA, &curr, -1);
2381                 if (curr == partinfo) {
2382                         GtkTreeSelection *sel = gtk_tree_view_get_selection(
2383                                                 GTK_TREE_VIEW(mimeview->ctree));
2384                         gtk_tree_selection_select_iter(sel, &iter);
2385                         gtk_tree_path_free(path);
2386                         return;
2387                 }
2388         } while (mimeview_tree_next(model, path));
2389
2390         gtk_tree_path_free(path);
2391 }
2392
2393 void mimeview_select_mimepart_icon(MimeView *mimeview, MimeInfo *partinfo)
2394 {
2395         icon_list_toggle_by_mime_info(mimeview, partinfo);
2396         icon_selected(mimeview, -1, partinfo);
2397 }
2398
2399 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
2400                              MimeView *mimeview)
2401 {
2402         SummaryView  *summaryview;
2403
2404         if (!event) return FALSE;
2405
2406         switch (event->keyval) {
2407         case GDK_KEY_space:
2408                 if (mimeview_scroll_page(mimeview, FALSE))
2409                         return TRUE;
2410
2411                 mimeview_select_next_part(mimeview);
2412                 return TRUE;
2413
2414                 break;
2415         case GDK_KEY_BackSpace:
2416                 mimeview_scroll_page(mimeview, TRUE);
2417                 return TRUE;
2418         case GDK_KEY_Return:
2419         case GDK_KEY_KP_Enter:
2420                 mimeview_scroll_one_line(mimeview,
2421                                          (event->state & GDK_MOD1_MASK) != 0);
2422                 return TRUE;
2423         case GDK_KEY_y:
2424                 BREAK_ON_MODIFIER_KEY();
2425                 mimeview_save_as(mimeview);
2426                 return TRUE;
2427         case GDK_KEY_t:
2428                 BREAK_ON_MODIFIER_KEY();
2429                 mimeview_display_as_text(mimeview);
2430                 return TRUE;
2431         case GDK_KEY_l:
2432                 BREAK_ON_MODIFIER_KEY();
2433                 mimeview_launch(mimeview, NULL);
2434                 return TRUE;
2435 #ifndef G_OS_WIN32
2436         case GDK_KEY_o:
2437                 BREAK_ON_MODIFIER_KEY();
2438                 mimeview_open_with(mimeview);
2439                 return TRUE;
2440 #endif
2441         case GDK_KEY_c:
2442                 BREAK_ON_MODIFIER_KEY();
2443                 mimeview_check_signature(mimeview);
2444                 return TRUE;
2445         case GDK_KEY_a:
2446                 BREAK_ON_MODIFIER_KEY();
2447                 mimeview_select_next_part(mimeview);
2448                 return TRUE;
2449         default:
2450                 break;
2451         }
2452
2453         if (!mimeview->messageview->mainwin) return FALSE;
2454         summaryview = mimeview->messageview->mainwin->summaryview;
2455         return summary_pass_key_press_event(summaryview, event);
2456 }
2457
2458 static gboolean icon_popup_menu(GtkWidget *widget, gpointer data)
2459 {
2460         MimeView *mimeview = (MimeView *)data;
2461         MimeInfo *partinfo = g_object_get_data(G_OBJECT(widget), "partinfo");
2462
2463         g_object_set_data(G_OBJECT(mimeview->popupmenu),
2464                           "pop_partinfo", partinfo);
2465         gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
2466                        NULL, NULL, NULL, NULL,
2467                        0, gtk_get_current_event_time());
2468         return TRUE;
2469 }
2470
2471 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
2472 {
2473         GtkWidget *pixmap = NULL;
2474         GtkWidget *vbox;
2475         GtkWidget *button;
2476         gchar *tip;
2477         gchar *tiptmp;
2478         const gchar *desc = NULL;
2479         gchar *sigshort = NULL;
2480         gchar *content_type;
2481         StockPixmap stockp;
2482         MimeInfo *partinfo;
2483         MimeInfo *siginfo = NULL;
2484         MimeInfo *encrypted = NULL;
2485 #ifdef GENERIC_UMPC
2486         GtkRequisition r;
2487 #endif
2488
2489         if (!prefs_common.show_inline_attachments && mimeinfo->id)
2490                 return;
2491
2492         vbox = mimeview->icon_vbox;
2493         mimeview->icon_count++;
2494         button = gtk_event_box_new();
2495
2496         g_signal_connect(G_OBJECT(button), "motion-notify-event",
2497                          G_CALLBACK(mimeview_visi_notify), mimeview);
2498         g_signal_connect(G_OBJECT(button), "leave-notify-event",
2499                          G_CALLBACK(mimeview_leave_notify), mimeview);
2500         g_signal_connect(G_OBJECT(button), "enter-notify-event",
2501                          G_CALLBACK(mimeview_enter_notify), mimeview);
2502
2503         gtk_container_set_border_width(GTK_CONTAINER(button), 2);
2504         g_object_set_data(G_OBJECT(button), "icon_number",
2505                           GINT_TO_POINTER(mimeview->icon_count));
2506         g_object_set_data(G_OBJECT(button), "partinfo",
2507                           mimeinfo);
2508
2509         switch (mimeinfo->type) {
2510
2511         case MIMETYPE_TEXT:
2512                 if (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
2513                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
2514                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched"))
2515                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
2516                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "calendar"))
2517                         stockp = STOCK_PIXMAP_MIME_TEXT_CALENDAR;
2518                 else if  (mimeinfo->subtype && (!g_ascii_strcasecmp(mimeinfo->subtype, "x-patch")
2519                                 || !g_ascii_strcasecmp(mimeinfo->subtype, "x-diff")))
2520                         stockp = STOCK_PIXMAP_MIME_TEXT_PATCH;
2521                 else
2522                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
2523                 break;
2524         case MIMETYPE_MESSAGE:
2525                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
2526                 break;
2527         case MIMETYPE_APPLICATION:
2528                 if (mimeinfo->subtype && (!g_ascii_strcasecmp(mimeinfo->subtype, "pgp-signature")
2529                     || !g_ascii_strcasecmp(mimeinfo->subtype, "x-pkcs7-signature")
2530                     || !g_ascii_strcasecmp(mimeinfo->subtype, "pkcs7-signature")))
2531                         stockp = STOCK_PIXMAP_MIME_PGP_SIG;
2532                 else if (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "pdf"))
2533                         stockp = STOCK_PIXMAP_MIME_PDF;
2534                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "postscript"))
2535                         stockp = STOCK_PIXMAP_MIME_PS;
2536                 else
2537                         stockp = STOCK_PIXMAP_MIME_APPLICATION;
2538                 break;
2539         case MIMETYPE_IMAGE:
2540                 stockp = STOCK_PIXMAP_MIME_IMAGE;
2541                 break;
2542         case MIMETYPE_AUDIO:
2543                 stockp = STOCK_PIXMAP_MIME_AUDIO;
2544                 break;
2545         default:
2546                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
2547                 break;
2548         }
2549
2550         partinfo = mimeinfo;
2551         while (partinfo != NULL) {
2552                 if (privacy_mimeinfo_is_signed(partinfo)) {
2553                         siginfo = partinfo;
2554                         break;
2555                 }
2556                 if (privacy_mimeinfo_is_encrypted(partinfo)) {
2557                         encrypted = partinfo;
2558                         break;
2559                 }
2560                 partinfo = procmime_mimeinfo_parent(partinfo);
2561         }
2562
2563         if (siginfo != NULL) {
2564                 switch (privacy_mimeinfo_get_sig_status(siginfo)) {
2565                 case SIGNATURE_UNCHECKED:
2566                 case SIGNATURE_CHECK_FAILED:
2567                 case SIGNATURE_CHECK_TIMEOUT:
2568                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2569                             STOCK_PIXMAP_PRIVACY_EMBLEM_SIGNED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2570                         break;
2571                 case SIGNATURE_OK:
2572                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2573                             STOCK_PIXMAP_PRIVACY_EMBLEM_PASSED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2574                         break;
2575                 case SIGNATURE_WARN:
2576                 case SIGNATURE_KEY_EXPIRED:
2577                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2578                             STOCK_PIXMAP_PRIVACY_EMBLEM_WARN, OVERLAY_BOTTOM_RIGHT, 6, 3);
2579                         break;
2580                 case SIGNATURE_INVALID:
2581                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2582                             STOCK_PIXMAP_PRIVACY_EMBLEM_FAILED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2583                         break;
2584                 }
2585                 sigshort = privacy_mimeinfo_sig_info_short(siginfo);
2586         } else if (encrypted != NULL) {
2587                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2588                             STOCK_PIXMAP_PRIVACY_EMBLEM_ENCRYPTED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2589         } else {
2590                 pixmap = stock_pixmap_widget_with_overlay(stockp, 0,
2591                                                           OVERLAY_NONE, 6, 3);
2592         }
2593         gtk_container_add(GTK_CONTAINER(button), pixmap);
2594         if (!desc) {
2595                 if (prefs_common.attach_desc)
2596                         desc = get_part_description(mimeinfo);
2597                 else
2598                         desc = get_part_name(mimeinfo);
2599         }
2600
2601         content_type = procmime_get_content_type_str(mimeinfo->type,
2602                                                      mimeinfo->subtype);
2603
2604         tip = g_strconcat("<b>", _("Type:"), "  </b>", content_type,
2605                           "\n<b>", _("Size:"), " </b>",
2606                           to_human_readable((goffset)mimeinfo->length), NULL);
2607         g_free(content_type);
2608         if (desc && *desc) {
2609                 gchar *tmp = NULL, *escaped = NULL;
2610                 if (!g_utf8_validate(desc, -1, NULL)) {
2611                         tmp = conv_filename_to_utf8(desc);
2612                 } else {
2613                         tmp = g_strdup(desc);
2614                 }
2615                 escaped = g_markup_escape_text(tmp,-1);
2616
2617                 tiptmp = g_strconcat(tip, "\n<b>",
2618                                 prefs_common.attach_desc && mimeinfo->description ?
2619                                 _("Description:") : _("Filename:"),
2620                                 " </b>", escaped, NULL);
2621                 g_free(tip);
2622                 tip = tiptmp;
2623                 g_free(tmp);
2624                 g_free(escaped);
2625         }
2626         if (sigshort && *sigshort) {
2627                 tiptmp = g_strjoin("\n", tip, g_markup_escape_text(sigshort, -1), NULL);
2628                 g_free(tip);
2629                 tip = tiptmp;
2630         }
2631         g_free(sigshort);
2632
2633         gtk_widget_set_tooltip_markup(button, tip);
2634         g_free(tip);
2635         gtk_widget_show_all(button);
2636         gtk_drag_source_set(button, GDK_BUTTON1_MASK|GDK_BUTTON3_MASK,
2637                             mimeview_mime_types, 1, GDK_ACTION_COPY);
2638
2639         g_signal_connect(G_OBJECT(button), "popup-menu",
2640                          G_CALLBACK(icon_popup_menu), mimeview);
2641         g_signal_connect(G_OBJECT(button), "button_release_event",
2642                          G_CALLBACK(icon_clicked_cb), mimeview);
2643         g_signal_connect(G_OBJECT(button), "key_press_event",
2644                          G_CALLBACK(icon_key_pressed), mimeview);
2645         g_signal_connect(G_OBJECT(button), "drag_data_get",
2646                          G_CALLBACK(mimeview_drag_data_get), mimeview);
2647         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
2648 #ifdef GENERIC_UMPC
2649         gtk_widget_size_request(pixmap, &r);
2650         gtk_widget_set_size_request(button, -1, r.height + 4);
2651 #endif
2652
2653 }
2654
2655 static void icon_list_clear (MimeView *mimeview)
2656 {
2657         GList     *child, *orig;
2658         GtkAdjustment *adj;
2659
2660         orig = gtk_container_get_children(GTK_CONTAINER(mimeview->icon_vbox));
2661         for (child = orig; child != NULL; child = g_list_next(child)) {
2662                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
2663                                        GTK_WIDGET(child->data));
2664         }
2665         g_list_free(orig);
2666         mimeview->icon_count = 0;
2667         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2668         gtk_adjustment_set_value(adj, gtk_adjustment_get_lower(adj));
2669         gtk_adjustment_changed(adj);
2670 }
2671
2672 /*!
2673  *\brief        Used to 'click' the next or previous icon.
2674  *
2675  *\return       true if the icon 'number' exists and was selected.
2676  */
2677 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
2678                                          GtkAllocation *size, MimeView *mimeview)
2679 {
2680         GtkAllocation vbox_size;
2681         GtkAllocation layout_size;
2682         GtkAdjustment *adj;
2683         guint width;
2684         guint height;
2685
2686         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2687
2688         gtk_widget_get_allocation(mimeview->icon_vbox, &vbox_size);
2689         gtk_widget_get_allocation(mimeview->icon_scroll, &layout_size);
2690
2691         gtk_layout_get_size(GTK_LAYOUT(mimeview->icon_scroll), &width, &height);
2692         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
2693                             width,
2694                             MAX(vbox_size.height, layout_size.height));
2695         gtk_adjustment_set_step_increment(adj, 10);
2696 }
2697
2698 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
2699 {
2700         GtkRequisition size;
2701         GtkRequisition requisition;
2702
2703         cm_return_if_fail(mimeinfo != NULL);
2704
2705         while (mimeinfo != NULL) {
2706                 if (mimeinfo->type != MIMETYPE_MULTIPART)
2707                         icon_list_append_icon(mimeview, mimeinfo);
2708                 if (mimeinfo->node->children != NULL)
2709                         icon_list_create(mimeview,
2710                                 (MimeInfo *) mimeinfo->node->children->data);
2711                 mimeinfo = mimeinfo->node->next != NULL
2712                          ? (MimeInfo *) mimeinfo->node->next->data
2713                          : NULL;
2714         }
2715         gtk_widget_size_request(mimeview->icon_vbox, &size);
2716         gtk_widget_get_requisition(mimeview->icon_mainbox, &requisition);
2717         if (size.width > requisition.width) {
2718                 gtk_widget_set_size_request(mimeview->icon_mainbox,
2719                                             size.width, -1);
2720         }
2721         if (mimeview->opened)
2722                 icon_list_toggle_by_mime_info(mimeview,
2723                         mimeview_get_node_part(mimeview, mimeview->opened));
2724 }
2725
2726 static void icon_list_toggle_by_mime_info (MimeView     *mimeview,
2727                                            MimeInfo     *mimeinfo)
2728 {
2729         GList *children, *child;
2730
2731         children = gtk_container_get_children(GTK_CONTAINER(mimeview->icon_vbox));
2732         for (child = children; child != NULL; child = g_list_next(child)) {
2733                 gboolean *highlight = NULL;
2734                 GtkWidget *icon = gtk_bin_get_child(GTK_BIN(child->data));
2735
2736                 if (!GTK_IS_EVENT_BOX(child->data))
2737                         continue;
2738
2739                 highlight = g_object_get_data(G_OBJECT(icon), "highlight");
2740                 *highlight = (g_object_get_data(G_OBJECT(child->data),
2741                                       "partinfo") == (gpointer)mimeinfo);
2742
2743                 gtk_widget_queue_draw(icon);
2744         }
2745         g_list_free(children);
2746 }
2747
2748 static void ctree_size_allocate_cb(GtkWidget *widget, GtkAllocation *allocation,
2749                                     MimeView *mimeview)
2750 {
2751         prefs_common.mimeview_tree_height = allocation->height;
2752 }
2753
2754 static gint mime_toggle_button_cb(GtkWidget *button, GdkEventButton *event,
2755                                     MimeView *mimeview)
2756 {
2757         g_object_ref(button);
2758
2759         mimeview_leave_notify(button, NULL, NULL);
2760
2761         mimeview->ctree_mode = !mimeview->ctree_mode;
2762         if (mimeview->ctree_mode) {
2763                 gtk_arrow_set(GTK_ARROW(gtk_bin_get_child(GTK_BIN((button)))), GTK_ARROW_RIGHT,
2764                                         GTK_SHADOW_NONE);
2765                 gtk_widget_hide(mimeview->icon_mainbox);
2766                 gtk_widget_show(mimeview->ctree_mainbox);
2767                 gtk_paned_set_position(GTK_PANED(mimeview->paned),
2768                                         prefs_common.mimeview_tree_height);
2769
2770                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
2771                                         button);
2772                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
2773                                    button, FALSE, FALSE, 0);
2774         } else {
2775                 gtk_arrow_set(GTK_ARROW(gtk_bin_get_child(GTK_BIN((button)))), GTK_ARROW_LEFT,
2776                               GTK_SHADOW_NONE);
2777                 gtk_widget_hide(mimeview->ctree_mainbox);
2778                 gtk_widget_show(mimeview->icon_mainbox);
2779                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
2780
2781                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
2782                                         button);
2783                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
2784                                    button, FALSE, FALSE, 0);
2785                 gtk_box_reorder_child(GTK_BOX(gtk_widget_get_parent(button)), button, 0);
2786                 if (mimeview->opened)
2787                         icon_list_toggle_by_mime_info(mimeview,
2788                                         mimeview_get_node_part(mimeview, mimeview->opened));
2789                 summary_grab_focus(mimeview->mainwin->summaryview);
2790         }
2791         g_object_unref(button);
2792         return TRUE;
2793 }
2794
2795 void mimeview_update (MimeView *mimeview)
2796 {
2797         if (mimeview && mimeview->mimeinfo) {
2798                 icon_list_clear(mimeview);
2799                 icon_list_create(mimeview, mimeview->mimeinfo);
2800         }
2801 }
2802
2803 void mimeview_handle_cmd(MimeView *mimeview, const gchar *cmd, GdkEventButton *event, gpointer data)
2804 {
2805         MessageView *msgview = NULL;
2806         MainWindow *mainwin = NULL;
2807
2808         if (!cmd)
2809                 return;
2810
2811         msgview = mimeview->messageview;
2812         if (!msgview)
2813                 return;
2814
2815         mainwin = msgview->mainwin;
2816         if (!mainwin)
2817                 return;
2818
2819         g_object_set_data(G_OBJECT(mimeview->popupmenu),
2820                           "pop_partinfo", NULL);
2821
2822         if (!strcmp(cmd, "sc://view_log"))
2823                 log_window_show(mainwin->logwin);
2824         else if (!strcmp(cmd, "sc://save_as"))
2825                 mimeview_save_as(mimeview);
2826         else if (!strcmp(cmd, "sc://display_as_text"))
2827                 mimeview_display_as_text(mimeview);
2828 #ifndef G_OS_WIN32
2829         else if (!strcmp(cmd, "sc://open_with"))
2830                 mimeview_open_with(mimeview);
2831 #endif
2832         else if (!strcmp(cmd, "sc://open"))
2833                 mimeview_launch(mimeview, NULL);
2834         else if (!strcmp(cmd, "sc://select_attachment") && data != NULL) {
2835                 icon_list_toggle_by_mime_info(mimeview, (MimeInfo *)data);
2836                 icon_selected(mimeview, -1, (MimeInfo *)data);
2837         } else if (!strcmp(cmd, "sc://open_attachment") && data != NULL) {
2838                 mimeview_launch(mimeview, (MimeInfo *)data);
2839         } else if (!strcmp(cmd, "sc://menu_attachment") && data != NULL) {
2840                 mimeview->spec_part = (MimeInfo *)data;
2841                 part_button_pressed(mimeview, event, (MimeInfo *)data);
2842         } else if (!strncmp(cmd, "sc://search_tags:", strlen("sc://search_tags:"))) {
2843                 const gchar *tagname = cmd + strlen("sc://search_tags:");
2844                 gchar *buf = g_strdup_printf("tag matchcase \"%s\"", tagname);
2845                 gtk_toggle_button_set_active(
2846                                 GTK_TOGGLE_BUTTON(mimeview->messageview->mainwin->summaryview->toggle_search),
2847                                 TRUE);
2848                 quicksearch_set(mimeview->messageview->mainwin->summaryview->quicksearch,
2849                                 ADVANCED_SEARCH_EXTENDED, buf);
2850                 g_free(buf);
2851         }
2852 }
2853
2854 gboolean mimeview_scroll_page(MimeView *mimeview, gboolean up)
2855 {
2856         if (mimeview->type == MIMEVIEW_TEXT)
2857                 return textview_scroll_page(mimeview->textview, up);
2858         else if (mimeview->mimeviewer) {
2859                 MimeViewer *mimeviewer = mimeview->mimeviewer;
2860                 if (mimeviewer->scroll_page)
2861                         return mimeviewer->scroll_page(mimeviewer, up);
2862         }
2863         return TRUE;
2864 }
2865
2866 void mimeview_scroll_one_line(MimeView *mimeview, gboolean up)
2867 {
2868         if (mimeview->type == MIMEVIEW_TEXT)
2869                 textview_scroll_one_line(mimeview->textview, up);
2870         else if (mimeview->mimeviewer) {
2871                 MimeViewer *mimeviewer = mimeview->mimeviewer;
2872                 if (mimeviewer->scroll_one_line)
2873                         mimeviewer->scroll_one_line(mimeviewer, up);
2874         }
2875 }