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 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         pthread_create(&th2, &detach2,
1289                         mimeview_check_sig_cancel_thread,
1290                         mimeview);
1291
1292         mimeview->check_data->cancel_th = th2;
1293         mimeview->check_data->cancel_th_init = TRUE;
1294 }
1295 #endif
1296
1297 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
1298 {
1299         MimeView *mimeview = (MimeView *) user_data;
1300         MimeInfo *mimeinfo = mimeview->siginfo;
1301
1302         if (mimeinfo == NULL)
1303                 return;
1304 #ifdef USE_PTHREAD
1305         if (mimeview->check_data)
1306                 return;
1307 #endif
1308         noticeview_set_text(mimeview->siginfoview, _("Checking signature..."));
1309         GTK_EVENTS_FLUSH();
1310 #ifdef USE_PTHREAD
1311         /* let's do it non-blocking */
1312         mimeview_check_sig_in_thread(mimeview);
1313         if (!mimeview->check_data) /* let's check syncronously */
1314 #endif
1315         {
1316                 debug_print("checking without thread\n");
1317                 privacy_mimeinfo_check_signature(mimeinfo);
1318                 update_signature_noticeview(mimeview, mimeview->siginfo, FALSE, 0);
1319         }
1320 }
1321
1322 void mimeview_check_signature(MimeView *mimeview)
1323 {
1324         check_signature_cb(NULL, mimeview);
1325 }
1326
1327 static void redisplay_email(GtkWidget *widget, gpointer user_data)
1328 {
1329         MimeView *mimeview = (MimeView *) user_data;
1330         gtk_tree_path_free(mimeview->opened);
1331         mimeview->opened = NULL;
1332         mimeview_selected(gtk_tree_view_get_selection(
1333                         GTK_TREE_VIEW(mimeview->ctree)), mimeview);
1334 }
1335
1336 static void display_full_info_cb(GtkWidget *widget, gpointer user_data)
1337 {
1338         MimeView *mimeview = (MimeView *) user_data;
1339         gchar *siginfo;
1340
1341         siginfo = privacy_mimeinfo_sig_info_full(mimeview->siginfo);
1342         textview_set_text(mimeview->textview, siginfo);
1343         g_free(siginfo);
1344         noticeview_set_button_text(mimeview->siginfoview, NULL);
1345         noticeview_set_button_press_callback(
1346                 mimeview->siginfoview,
1347                 G_CALLBACK(redisplay_email),
1348                 (gpointer) mimeview);
1349         noticeview_set_tooltip(mimeview->siginfoview, _("Go back to email"));
1350 }
1351
1352 static void update_signature_info(MimeView *mimeview, MimeInfo *selected)
1353 {
1354         MimeInfo *siginfo;
1355         MimeInfo *first_text;
1356
1357         cm_return_if_fail(mimeview != NULL);
1358         cm_return_if_fail(selected != NULL);
1359
1360         if (selected->type == MIMETYPE_MESSAGE
1361         &&  !g_ascii_strcasecmp(selected->subtype, "rfc822")) {
1362                 /* if the first text part is signed, check that */
1363                 first_text = selected;
1364                 while (first_text && first_text->type != MIMETYPE_TEXT) {
1365                         first_text = procmime_mimeinfo_next(first_text);
1366                 }
1367                 if (first_text) {
1368                         update_signature_info(mimeview, first_text);
1369                         return;
1370                 }
1371         }
1372
1373         siginfo = selected;
1374         while (siginfo != NULL) {
1375                 if (privacy_mimeinfo_is_signed(siginfo))
1376                         break;
1377                 siginfo = procmime_mimeinfo_parent(siginfo);
1378         }
1379         mimeview->siginfo = siginfo;
1380
1381         /* This shortcut boolean is there to correctly set the menu's
1382          * CheckSignature item sensitivity without killing performance
1383          * each time the menu sensitiveness is updated (a lot).
1384          */
1385         mimeview->signed_part = (siginfo != NULL);
1386
1387         if (siginfo == NULL) {
1388                 noticeview_hide(mimeview->siginfoview);
1389                 return;
1390         }
1391
1392         update_signature_noticeview(mimeview, siginfo, FALSE, 0);
1393         noticeview_show(mimeview->siginfoview);
1394 }
1395
1396 static void mimeview_selected(GtkTreeSelection *selection, MimeView *mimeview)
1397 {
1398         GtkTreeView *ctree = GTK_TREE_VIEW(mimeview->ctree);
1399         GtkTreeModel *model;
1400         GtkTreeIter iter;
1401         GtkTreePath *path;
1402         MimeInfo *partinfo;
1403         MainWindow *mainwin;
1404
1405         selection = gtk_tree_view_get_selection(ctree);
1406         if (!gtk_tree_selection_get_selected(selection, &model, &iter))
1407                 return;
1408
1409         path = gtk_tree_model_get_path(model, &iter);
1410
1411         if (mimeview->opened && !gtk_tree_path_compare(mimeview->opened, path)) {
1412                 gtk_tree_path_free(path);
1413                 return;
1414         }
1415
1416         gtk_tree_path_free(mimeview->opened);
1417         mimeview->opened = path;
1418         mimeview->spec_part = NULL;
1419         gtk_tree_view_scroll_to_cell(ctree, path, NULL, TRUE, 0.5, 0);
1420
1421         partinfo = mimeview_get_node_part(mimeview, path);
1422         if (!partinfo) return;
1423
1424         /* ungrab the mouse event */
1425         if (gtk_widget_has_grab(GTK_WIDGET(ctree))) {
1426                 gtk_grab_remove(GTK_WIDGET(ctree));
1427                 if (gdk_pointer_is_grabbed())
1428                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1429         }
1430
1431         mimeview->textview->default_text = FALSE;
1432
1433         update_signature_info(mimeview, partinfo);
1434
1435         if (!mimeview_show_part(mimeview, partinfo)) {
1436                 switch (partinfo->type) {
1437                 case MIMETYPE_TEXT:
1438                 case MIMETYPE_MESSAGE:
1439                 case MIMETYPE_MULTIPART:
1440                         mimeview_show_message_part(mimeview, partinfo);
1441
1442                         break;
1443                 default:
1444                         mimeview->textview->default_text = TRUE;
1445                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1446                         textview_clear(mimeview->textview);
1447                         textview_show_mime_part(mimeview->textview, partinfo);
1448                         break;
1449                 }
1450         }
1451         mainwin = mainwindow_get_mainwindow();
1452         if (mainwin)
1453                 main_window_set_menu_sensitive(mainwin);
1454
1455         if (mimeview->siginfo && privacy_auto_check_signatures(mimeview->siginfo)
1456         &&  privacy_mimeinfo_get_sig_status(mimeview->siginfo) == SIGNATURE_UNCHECKED) {
1457                 mimeview_check_signature(mimeview);
1458         }
1459 }
1460
1461 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
1462                                     MimeView *mimeview)
1463 {
1464         GtkTreeSelection *selection;
1465         GtkTreeIter iter;
1466
1467         if (!event) return FALSE;
1468
1469         if (event->button == 2 || event->button == 3) {
1470                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(widget));
1471                 if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
1472                         return FALSE;
1473
1474                 gtk_tree_selection_select_iter(selection, &iter);
1475         }
1476         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
1477
1478         return FALSE;
1479 }
1480
1481 static gboolean mimeview_scrolled(GtkWidget *widget, GdkEventScroll *event,
1482                                     MimeView *mimeview)
1483 {
1484         GtkVScrollbutton *scrollbutton = (GtkVScrollbutton *)mimeview->scrollbutton;
1485         if (event->direction == GDK_SCROLL_UP) {
1486                 scrollbutton->scroll_type = GTK_SCROLL_STEP_BACKWARD;
1487         } else {
1488                 scrollbutton->scroll_type = GTK_SCROLL_STEP_FORWARD;
1489         }
1490         gtk_vscrollbutton_scroll(scrollbutton);
1491         return TRUE;
1492 }
1493
1494 /* from gdkevents.c */
1495 #define DOUBLE_CLICK_TIME 250
1496
1497 static gboolean part_button_pressed(MimeView *mimeview, GdkEventButton *event,
1498                                     MimeInfo *partinfo)
1499 {
1500         static MimeInfo *lastinfo;
1501         static guint32 lasttime;
1502
1503         if (event->button == 2 ||
1504             (event->button == 1 && (event->time - lasttime) < DOUBLE_CLICK_TIME && lastinfo == partinfo)) {
1505                 /* call external program for image, audio or html */
1506                 mimeview_launch(mimeview, partinfo);
1507                 return TRUE;
1508         } else if (event->button == 3) {
1509                 MainWindow *mainwin = mainwindow_get_mainwindow();
1510
1511                 if (partinfo && (partinfo->type == MIMETYPE_MESSAGE ||
1512                                  partinfo->type == MIMETYPE_IMAGE ||
1513                                  partinfo->type == MIMETYPE_MULTIPART))
1514                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/DisplayAsText", FALSE);
1515                 else
1516                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/DisplayAsText", TRUE);
1517 #ifndef G_OS_WIN32
1518                 if (partinfo &&
1519                     partinfo->type == MIMETYPE_APPLICATION &&
1520                     !g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))
1521                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/Open", FALSE);
1522                 else
1523 #endif
1524                         cm_menu_set_sensitive_full(mimeview->ui_manager, "Menus/MimeView/Open", TRUE);
1525                 if (mainwin)
1526                         main_window_set_menu_sensitive(mainwin);
1527                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1528                                   "pop_partinfo", partinfo);
1529
1530                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
1531                                NULL, NULL, NULL, NULL,
1532                                event->button, event->time);
1533                 return TRUE;
1534         }
1535
1536         lastinfo = partinfo;
1537         lasttime = event->time;
1538         return FALSE;
1539 }
1540
1541
1542 gboolean mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
1543 {
1544         return mimeview_key_pressed(mimeview->ctree, event, mimeview);
1545 }
1546
1547 void mimeview_select_next_part(MimeView *mimeview)
1548 {
1549         GtkTreeView *ctree = GTK_TREE_VIEW(mimeview->ctree);
1550         GtkTreeModel *model = gtk_tree_view_get_model(ctree);
1551         GtkTreeSelection *selection;
1552         GtkTreeIter iter;
1553         GtkTreePath *path;
1554         MimeInfo *partinfo = NULL;
1555         gboolean has_next;
1556
1557         if (!mimeview->opened) return;
1558
1559         gtk_tree_model_get_iter(model, &iter, mimeview->opened);
1560         path = gtk_tree_model_get_path(model, &iter);
1561 skip:
1562         has_next = mimeview_tree_next(model, path);
1563         if (!has_next) {
1564                 has_next = gtk_tree_model_get_iter_first(model, &iter);
1565                 gtk_tree_path_free(path);
1566                 path = gtk_tree_model_get_path(model, &iter);
1567         }
1568
1569         if (has_next) {
1570                 partinfo = mimeview_get_node_part(mimeview, path);
1571                 if (partinfo->type == MIMETYPE_MULTIPART ||
1572                     (!prefs_common.show_inline_attachments && partinfo->id))
1573                         goto skip;
1574                 selection = gtk_tree_view_get_selection(ctree);
1575                 gtk_tree_selection_select_path(selection, path);
1576                 icon_list_toggle_by_mime_info(mimeview, partinfo);
1577         }
1578
1579         gtk_tree_path_free(path);
1580 }
1581
1582 void mimeview_select_prev_part(MimeView *mimeview)
1583 {
1584         GtkTreeView *ctree = GTK_TREE_VIEW(mimeview->ctree);
1585         GtkTreeModel *model = gtk_tree_view_get_model(ctree);
1586         GtkTreeSelection *selection;
1587         GtkTreeIter iter;
1588         GtkTreePath *path;
1589         MimeInfo *partinfo = NULL;
1590         gboolean has_prev;
1591
1592         if (!mimeview->opened) return;
1593
1594         gtk_tree_model_get_iter(model, &iter, mimeview->opened);
1595         path = gtk_tree_model_get_path(model, &iter);
1596 skip:
1597         has_prev = mimeview_tree_prev(mimeview, path);
1598         if (!has_prev) {
1599                 while (mimeview_tree_next(model, path)) {}
1600                 has_prev = TRUE;
1601         }
1602
1603         if (has_prev) {
1604                 partinfo = mimeview_get_node_part(mimeview, path);
1605                 if (partinfo->type == MIMETYPE_MULTIPART ||
1606                     (!prefs_common.show_inline_attachments && partinfo->id))
1607                         goto skip;
1608                 selection = gtk_tree_view_get_selection(ctree);
1609                 gtk_tree_selection_select_path(selection, path);
1610                 icon_list_toggle_by_mime_info(mimeview, partinfo);
1611         }
1612
1613         gtk_tree_path_free(path);
1614 }
1615
1616 #define BREAK_ON_MODIFIER_KEY() \
1617         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1618
1619 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1620                                  MimeView *mimeview)
1621 {
1622         SummaryView *summaryview;
1623
1624         if (!event) return FALSE;
1625         if (!mimeview->opened) return FALSE;
1626
1627         summaryview = mimeview->messageview->mainwin->summaryview;
1628
1629         if (summaryview && quicksearch_has_focus(summaryview->quicksearch))
1630                 return FALSE;
1631
1632         switch (event->keyval) {
1633         case GDK_KEY_Home:
1634         case GDK_KEY_End:
1635                 textview_scroll_max(mimeview->textview,
1636                                     (event->keyval == GDK_KEY_Home));
1637                 return TRUE;
1638         case GDK_KEY_Page_Down:
1639         case GDK_KEY_space:
1640                 if (mimeview_scroll_page(mimeview,
1641                                          (event->state & GDK_SHIFT_MASK) != 0))
1642                         return TRUE;
1643
1644                 if (!(event->state & GDK_SHIFT_MASK))
1645                         mimeview_select_next_part(mimeview);
1646                 return TRUE;
1647         case GDK_KEY_Page_Up:
1648         case GDK_KEY_BackSpace:
1649                 mimeview_scroll_page(mimeview, TRUE);
1650                 return TRUE;
1651         case GDK_KEY_Return:
1652         case GDK_KEY_KP_Enter:
1653                 mimeview_scroll_one_line(mimeview,
1654                                          (event->state & GDK_MOD1_MASK) != 0);
1655                 return TRUE;
1656         case GDK_KEY_Up:
1657         case GDK_KEY_Down:
1658                 mimeview_scroll_one_line(mimeview, (event->keyval == GDK_KEY_Up));
1659                 return TRUE;
1660         default:
1661                 break;
1662         }
1663
1664         if (mimeview->messageview->new_window) return FALSE;
1665
1666         return summary_pass_key_press_event(summaryview, event);
1667 }
1668
1669 static void mimeview_drag_data_get(GtkWidget        *widget,
1670                                    GdkDragContext   *drag_context,
1671                                    GtkSelectionData *selection_data,
1672                                    guint             info,
1673                                    guint             time,
1674                                    MimeView         *mimeview)
1675 {
1676         gchar *filename = NULL, *uriname, *tmp;
1677         MimeInfo *partinfo;
1678         gint err;
1679         gint count = 0;
1680
1681         if (!mimeview->opened) return;
1682         if (!mimeview->file) return;
1683
1684         partinfo = mimeview_get_selected_part(mimeview);
1685         if (!partinfo) return;
1686
1687         if (strlen(get_part_name(partinfo)) > 0) {
1688                 filename = g_path_get_basename(get_part_name(partinfo));
1689                 if (*filename == '\0') return;
1690         } else if (partinfo->type == MIMETYPE_MESSAGE
1691                    && !g_ascii_strcasecmp(partinfo->subtype, "rfc822")) {
1692                 gchar *name = NULL;
1693                 GPtrArray *headers = NULL;
1694                 FILE *fp;
1695
1696                 fp = claws_fopen(partinfo->data.filename, "rb");
1697                 if (fp != NULL && fseek(fp, partinfo->offset, SEEK_SET) == 0) {
1698                         headers = procheader_get_header_array_asis(fp);
1699                         if (headers) {
1700                                 gint i;
1701                                 for (i = 0; i < headers->len; i++) {
1702                                         Header *header = g_ptr_array_index(headers, i);
1703                                         if (procheader_headername_equal(header->name, "Subject")) {
1704                                                 unfold_line(header->body);
1705                                                 name = g_strconcat(header->body, ".txt", NULL);
1706                                                 subst_for_filename(name);
1707                                         }
1708                                 }
1709                                 procheader_header_array_destroy(headers);
1710                         }
1711                 }
1712                 if (fp != NULL)
1713                         claws_fclose(fp);
1714                 if (name)
1715                         filename = g_path_get_basename(name);
1716                 g_free(name);
1717         }
1718         if (filename == NULL)
1719                 filename = g_path_get_basename("Unnamed part");
1720
1721         if (!g_utf8_validate(filename, -1, NULL))
1722                 tmp = conv_codeset_strdup(filename,
1723                                 conv_get_locale_charset_str(),
1724                                 CS_UTF_8);
1725         else
1726                 tmp = g_strdup(filename);
1727
1728         if (tmp == NULL) {
1729                 g_warning("filename not in UTF-8");
1730                 tmp = g_strdup("Unnamed part");
1731         }
1732         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1733                                tmp, NULL);
1734
1735 check_new_file:
1736         if (is_file_exist(filename)) {
1737                 gchar *ext = NULL;
1738                 gchar *prefix = NULL;
1739                 gchar *new_name = NULL;
1740                 if (strrchr(tmp, '.')) {
1741                         prefix = g_strdup(tmp);
1742                         ext = g_strdup(strrchr(tmp, '.'));
1743                         *(strrchr(prefix, '.')) = '\0';
1744                 } else {
1745                         prefix = g_strdup(tmp);
1746                         ext = g_strdup("");
1747                 }
1748                 count++;
1749                 new_name = g_strdup_printf("%s.%d%s", prefix, count, ext);
1750                 g_free(prefix);
1751                 g_free(ext);
1752                 g_free(filename);
1753                 filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
1754                                new_name, NULL);
1755                 g_free(new_name);
1756                 goto check_new_file;
1757         }
1758
1759         g_free(tmp);
1760
1761         if ((err = procmime_get_part(filename, partinfo)) < 0)
1762                 alertpanel_error
1763                         (_("Couldn't save the part of multipart message: %s"),
1764                                 g_strerror(-err));
1765
1766         tmp = g_filename_to_uri(filename, NULL, NULL);
1767         uriname = g_strconcat(tmp, "\r\n", NULL);
1768         g_free(tmp);
1769
1770         gtk_selection_data_set(selection_data,
1771                    gtk_selection_data_get_target(selection_data), 8,
1772                                (guchar *)uriname, strlen(uriname));
1773
1774         g_free(uriname);
1775         g_free(filename);
1776 }
1777
1778 /**
1779  * Returns a filename (with path) for an attachment
1780  * \param partinfo The attachment to save
1781  * \param basedir The target directory
1782  * \param number Used for dummy filename if attachment is unnamed
1783  */
1784 static gchar *mimeview_get_filename_for_part(MimeInfo *partinfo,
1785                                       const gchar *basedir,
1786                                       gint number)
1787 {
1788         gchar *fullname;
1789         gchar *filename;
1790
1791         filename = g_strdup(get_part_name(partinfo));
1792         if (!filename || !*filename) {
1793                 g_free(filename);
1794                 filename = g_strdup_printf("noname.%d", number);
1795         }
1796
1797         if (!g_utf8_validate(filename, -1, NULL)) {
1798                 gchar *tmp = conv_filename_to_utf8(filename);
1799                 g_free(filename);
1800                 filename = tmp;
1801         }
1802
1803         subst_for_filename(filename);
1804
1805         fullname = g_strconcat
1806                 (basedir, G_DIR_SEPARATOR_S, (g_path_is_absolute(filename))
1807                  ? &filename[1] : filename, NULL);
1808
1809         g_free(filename);
1810         filename = conv_filename_from_utf8(fullname);
1811         g_free(fullname);
1812         return filename;
1813 }
1814
1815 /**
1816  * Write a single attachment to file
1817  * \param filename Filename with path
1818  * \param partinfo Attachment to save
1819  */
1820 static gboolean mimeview_write_part(const gchar *filename,
1821                                     MimeInfo *partinfo,
1822                                     gboolean handle_error)
1823 {
1824         gchar *dir;
1825         gint err;
1826
1827         dir= g_path_get_dirname(filename);
1828         if (!is_dir_exist(dir))
1829                 make_dir_hier(dir);
1830         g_free(dir);
1831
1832         if (is_file_exist(filename)) {
1833                 AlertValue aval;
1834                 gchar *res;
1835                 gchar *tmp;
1836
1837                 if (!g_utf8_validate(filename, -1, NULL))
1838                         tmp = conv_filename_to_utf8(filename);
1839                 else
1840                         tmp = g_strdup(filename);
1841
1842                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1843                                       tmp);
1844                 g_free(tmp);
1845                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
1846                                   GTK_STOCK_OK, NULL, ALERTFOCUS_FIRST);
1847                 g_free(res);
1848                 if (G_ALERTALTERNATE != aval) return FALSE;
1849         }
1850
1851         if ((err = procmime_get_part(filename, partinfo)) < 0) {
1852                 debug_print("error saving MIME part: %d\n", err);
1853                 if (handle_error)
1854                         alertpanel_error
1855                                 (_("Couldn't save the part of multipart message: %s"),
1856                                  g_strerror(-err));
1857                 return FALSE;
1858         }
1859
1860         return TRUE;
1861 }
1862
1863 static AlertValue mimeview_save_all_error_ask(gint n)
1864 {
1865         gchar *message = g_strdup_printf(
1866                 _("An error has occurred while saving message part #%d. "
1867                 "Do you want to cancel operation or skip error and "
1868                 "continue?"), n);
1869         AlertValue av = alertpanel_full(_("Error saving all message parts"),
1870                 message, GTK_STOCK_CANCEL, _("Skip"), _("Skip all"),
1871                 ALERTFOCUS_FIRST, FALSE, NULL, ALERT_WARNING);
1872         g_free(message);
1873         return av;
1874 }
1875
1876 static void mimeview_save_all_info(gint errors, gint total)
1877 {
1878         if (!errors) {
1879                 gchar *msg = g_strdup_printf(
1880                                 ngettext("%d file saved successfully.",
1881                                         "%d files saved successfully.",
1882                                         total),
1883                                 total);
1884                 alertpanel_notice("%s", msg);
1885                 g_free(msg);
1886         } else {
1887                 gchar *msg1 = g_strdup_printf(
1888                                 ngettext("%d file saved successfully",
1889                                         "%d files saved successfully",
1890                                         total - errors),
1891                                 total - errors);
1892                 gchar *msg2 = g_strdup_printf(
1893                                 ngettext("%s, %d file failed.",
1894                                         "%s, %d files failed.",
1895                                         errors),
1896                                 msg1, errors);
1897                 alertpanel_warning("%s", msg2);
1898                 g_free(msg2);
1899                 g_free(msg1);
1900         }
1901 }
1902
1903 /**
1904  * Menu callback: Save all attached files
1905  * \param mimeview Current display
1906  */
1907 static void mimeview_save_all(MimeView *mimeview)
1908 {
1909         MimeInfo *partinfo;
1910         gchar *dirname;
1911         gchar *startdir = NULL;
1912         gint number = 1, errors = 0;
1913         gboolean skip_errors = FALSE;
1914
1915         if (!mimeview->opened) return;
1916         if (!mimeview->file) return;
1917         if (!mimeview->mimeinfo) return;
1918
1919         partinfo = mimeview->mimeinfo;
1920         if (prefs_common.attach_save_dir && *prefs_common.attach_save_dir)
1921                 startdir = g_strconcat(prefs_common.attach_save_dir, G_DIR_SEPARATOR_S, NULL);
1922         else
1923                 startdir = g_strdup(get_home_dir());
1924
1925         manage_window_focus_in(gtk_widget_get_ancestor(mimeview->hbox, GTK_TYPE_WINDOW), NULL, NULL);
1926         dirname = filesel_select_file_save_folder(_("Select destination folder"), startdir);
1927         if (!dirname) {
1928                 g_free(startdir);
1929                 return;
1930         }
1931
1932         if (!is_dir_exist (dirname)) {
1933                 alertpanel_error(_("'%s' is not a directory."), dirname);
1934                 g_free(startdir);
1935                 g_free(dirname);
1936                 return;
1937         }
1938
1939         if (dirname[strlen(dirname)-1] == G_DIR_SEPARATOR)
1940                 dirname[strlen(dirname)-1] = '\0';
1941
1942         /* Skip the first part, that is sometimes DISPOSITIONTYPE_UNKNOWN */
1943         if (partinfo && partinfo->type == MIMETYPE_MESSAGE)
1944                 partinfo = procmime_mimeinfo_next(partinfo);
1945         if (partinfo && partinfo->type == MIMETYPE_MULTIPART) {
1946                 partinfo = procmime_mimeinfo_next(partinfo);
1947                 if (partinfo && partinfo->type == MIMETYPE_TEXT)
1948                         partinfo = procmime_mimeinfo_next(partinfo);
1949         }
1950
1951         while (partinfo != NULL) {
1952                 if (partinfo->type != MIMETYPE_MESSAGE &&
1953                     partinfo->type != MIMETYPE_MULTIPART &&
1954                     (partinfo->disposition != DISPOSITIONTYPE_INLINE
1955                      || get_real_part_name(partinfo) != NULL)) {
1956                         gchar *filename = mimeview_get_filename_for_part(
1957                                 partinfo, dirname, number++);
1958
1959                         gboolean ok = mimeview_write_part(filename, partinfo, FALSE);
1960                         g_free(filename);
1961                         if (!ok) {
1962                                 ++errors;
1963                                 if (!skip_errors) {
1964                                         AlertValue av = mimeview_save_all_error_ask(number - 1);
1965                                         skip_errors = (av == G_ALERTOTHER);
1966                                         if (av == G_ALERTDEFAULT) /* cancel */
1967                                                 break;
1968                                 }
1969                         }
1970                 }
1971                 partinfo = procmime_mimeinfo_next(partinfo);
1972         }
1973
1974         g_free(prefs_common.attach_save_dir);
1975         g_free(startdir);
1976         prefs_common.attach_save_dir = g_filename_to_utf8(dirname,
1977                                         -1, NULL, NULL, NULL);
1978         g_free(dirname);
1979
1980         mimeview_save_all_info(errors, number - 1);
1981 }
1982
1983 static MimeInfo *mimeview_get_part_to_use(MimeView *mimeview)
1984 {
1985         MimeInfo *partinfo = NULL;
1986         if (mimeview->spec_part) {
1987                 partinfo = mimeview->spec_part;
1988                 mimeview->spec_part = NULL;
1989         } else {
1990                 partinfo = (MimeInfo *) g_object_get_data
1991                          (G_OBJECT(mimeview->popupmenu),
1992                          "pop_partinfo");
1993                 g_object_set_data(G_OBJECT(mimeview->popupmenu),
1994                                   "pop_partinfo", NULL);
1995                 if (!partinfo) {
1996                         partinfo = mimeview_get_selected_part(mimeview);
1997                 }
1998         }
1999
2000         return partinfo;
2001 }
2002 /**
2003  * Menu callback: Save the selected attachment
2004  * \param mimeview Current display
2005  */
2006 void mimeview_save_as(MimeView *mimeview)
2007 {
2008         gchar *filename;
2009         gchar *filepath = NULL;
2010         gchar *filedir = NULL;
2011         MimeInfo *partinfo;
2012         gchar *partname = NULL;
2013
2014         if (!mimeview->opened) return;
2015         if (!mimeview->file) return;
2016
2017         partinfo = mimeview_get_part_to_use(mimeview);
2018
2019         cm_return_if_fail(partinfo != NULL);
2020
2021         if (get_part_name(partinfo) == NULL) {
2022                 return;
2023         }
2024         partname = g_strdup(get_part_name(partinfo));
2025
2026         if (!g_utf8_validate(partname, -1, NULL)) {
2027                 gchar *tmp = conv_filename_to_utf8(partname);
2028                 if (!tmp) {
2029                         tmp = conv_codeset_strdup(partname,
2030                                 conv_get_locale_charset_str(),
2031                                 CS_UTF_8);
2032                 }
2033                 if (tmp) {
2034                         g_free(partname);
2035                         partname = tmp;
2036                 }
2037         }
2038
2039         subst_for_filename(partname);
2040
2041         if (prefs_common.attach_save_dir && *prefs_common.attach_save_dir)
2042                 filepath = g_strconcat(prefs_common.attach_save_dir,
2043                                        G_DIR_SEPARATOR_S, partname, NULL);
2044         else
2045                 filepath = g_strdup(partname);
2046
2047         g_free(partname);
2048
2049         manage_window_focus_in(gtk_widget_get_ancestor(mimeview->hbox, GTK_TYPE_WINDOW), NULL, NULL);
2050         filename = filesel_select_file_save(_("Save as"), filepath);
2051         if (!filename) {
2052                 g_free(filepath);
2053                 return;
2054         }
2055
2056         mimeview_write_part(filename, partinfo, TRUE);
2057
2058         filedir = g_path_get_dirname(filename);
2059         if (filedir && strcmp(filedir, ".")) {
2060                 g_free(prefs_common.attach_save_dir);
2061                 prefs_common.attach_save_dir = g_filename_to_utf8(filedir, -1, NULL, NULL, NULL);
2062         }
2063
2064         g_free(filedir);
2065         g_free(filepath);
2066 }
2067
2068 void mimeview_display_as_text(MimeView *mimeview)
2069 {
2070         MimeInfo *partinfo;
2071
2072         if (!mimeview->opened) return;
2073
2074         partinfo = mimeview_get_part_to_use(mimeview);
2075         mimeview_select_mimepart_icon(mimeview, partinfo);
2076         cm_return_if_fail(partinfo != NULL);
2077         mimeview_show_message_part(mimeview, partinfo);
2078 }
2079
2080 void mimeview_launch(MimeView *mimeview, MimeInfo *partinfo)
2081 {
2082         gchar *filename;
2083         gint err;
2084
2085         if (!mimeview->opened) return;
2086         if (!mimeview->file) return;
2087
2088         if (!partinfo)
2089                 partinfo = mimeview_get_part_to_use(mimeview);
2090
2091         cm_return_if_fail(partinfo != NULL);
2092
2093         filename = procmime_get_tmp_file_name(partinfo);
2094
2095         if ((err = procmime_get_part(filename, partinfo)) < 0)
2096                 alertpanel_error
2097                         (_("Couldn't save the part of multipart message: %s"),
2098                                 g_strerror(-err));
2099         else
2100                 mimeview_view_file(filename, partinfo, NULL, mimeview);
2101
2102         g_free(filename);
2103 }
2104
2105 #ifndef G_OS_WIN32
2106 void mimeview_open_with(MimeView *mimeview)
2107 {
2108         MimeInfo *partinfo;
2109
2110         if (!mimeview) return;
2111         if (!mimeview->opened) return;
2112         if (!mimeview->file) return;
2113
2114         partinfo = mimeview_get_part_to_use(mimeview);
2115
2116         mimeview_open_part_with(mimeview, partinfo, FALSE);
2117 }
2118
2119 static void mimeview_open_part_with(MimeView *mimeview, MimeInfo *partinfo, gboolean automatic)
2120 {
2121         gchar *filename;
2122         gchar *cmd;
2123         gchar *mime_command = NULL;
2124         gchar *content_type = NULL;
2125         gint err;
2126
2127         cm_return_if_fail(partinfo != NULL);
2128
2129         filename = procmime_get_tmp_file_name(partinfo);
2130
2131         if ((err = procmime_get_part(filename, partinfo)) < 0) {
2132                 alertpanel_error
2133                         (_("Couldn't save the part of multipart message: %s"),
2134                                 g_strerror(-err));
2135                 g_free(filename);
2136                 return;
2137         }
2138
2139         if (!prefs_common.mime_open_cmd_history)
2140                 prefs_common.mime_open_cmd_history =
2141                         add_history(NULL, prefs_common.mime_open_cmd);
2142
2143         if ((partinfo->type == MIMETYPE_APPLICATION) &&
2144             (!g_ascii_strcasecmp(partinfo->subtype, "octet-stream"))) {
2145                 /* guess content-type from filename */
2146                 content_type = procmime_get_mime_type(filename);
2147         }
2148         if (content_type == NULL) {
2149                 content_type = procmime_get_content_type_str(partinfo->type,
2150                         partinfo->subtype);
2151         }
2152
2153         if ((partinfo->type == MIMETYPE_TEXT && !strcmp(partinfo->subtype, "html"))
2154         && prefs_common_get_uri_cmd() && prefs_common.uri_cmd[0]) {
2155                 mime_command = g_strdup(prefs_common_get_uri_cmd());
2156                 g_free(content_type);
2157                 content_type = NULL;
2158         } else if (partinfo->type != MIMETYPE_TEXT || !prefs_common_get_ext_editor_cmd()
2159         ||  !prefs_common_get_ext_editor_cmd()[0]) {
2160                 mime_command = mailcap_get_command_for_type(content_type, filename);
2161         } else {
2162                 mime_command = g_strdup(prefs_common_get_ext_editor_cmd());
2163                 g_free(content_type);
2164                 content_type = NULL;
2165         }
2166         if (mime_command == NULL) {
2167                 /* try with extension this time */
2168                 g_free(content_type);
2169                 content_type = procmime_get_mime_type(filename);
2170                 mime_command = mailcap_get_command_for_type(content_type, filename);
2171         }
2172
2173         if (mime_command == NULL)
2174                 automatic = FALSE;
2175
2176         if (!automatic) {
2177                 gboolean remember = FALSE;
2178                 if (content_type != NULL)
2179                         cmd = input_dialog_combo_remember
2180                                 (_("Open with"),
2181                                  _("Enter the command-line to open file:\n"
2182                                    "('%s' will be replaced with file name)"),
2183                                  mime_command ? mime_command : prefs_common.mime_open_cmd,
2184                                  prefs_common.mime_open_cmd_history, &remember);
2185                 else
2186                         cmd = input_dialog_combo
2187                                 (_("Open with"),
2188                                  _("Enter the command-line to open file:\n"
2189                                    "('%s' will be replaced with file name)"),
2190                                  mime_command ? mime_command : prefs_common.mime_open_cmd,
2191                                  prefs_common.mime_open_cmd_history);
2192                 if (cmd && remember) {
2193                         mailcap_update_default(content_type, cmd);
2194                 }
2195                 g_free(mime_command);
2196         } else {
2197                 cmd = mime_command;
2198         }
2199         if (cmd) {
2200                 mimeview_view_file(filename, partinfo, cmd, mimeview);
2201                 g_free(prefs_common.mime_open_cmd);
2202                 prefs_common.mime_open_cmd = cmd;
2203                 prefs_common.mime_open_cmd_history =
2204                         add_history(prefs_common.mime_open_cmd_history, cmd);
2205         }
2206
2207         g_free(content_type);
2208         g_free(filename);
2209 }
2210 #endif
2211
2212 static void mimeview_send_to(MimeView *mimeview, MimeInfo *partinfo)
2213 {
2214         GList *attach_file = NULL;
2215         AttachInfo *ainfo = NULL;
2216         gchar *filename;
2217         gint err;
2218
2219         if (!mimeview->opened) return;
2220         if (!mimeview->file) return;
2221
2222         cm_return_if_fail(partinfo != NULL);
2223
2224         filename = procmime_get_tmp_file_name(partinfo);
2225
2226         if (!(err = procmime_get_part(filename, partinfo))) {
2227                 ainfo = g_new0(AttachInfo, 1);
2228                 ainfo->file = filename;
2229                 ainfo->name = g_strdup(get_part_name(partinfo));
2230                 ainfo->content_type = procmime_get_content_type_str(
2231                                         partinfo->type, partinfo->subtype);
2232                 ainfo->charset = g_strdup(procmime_mimeinfo_get_parameter(
2233                                         partinfo, "charset"));
2234                 attach_file = g_list_append(attach_file, ainfo);
2235
2236                 compose_new(NULL, NULL, attach_file);
2237
2238                 g_free(ainfo->name);
2239                 g_free(ainfo->content_type);
2240                 g_free(ainfo->charset);
2241                 g_free(ainfo);
2242                 g_list_free(attach_file);
2243         } else
2244                 alertpanel_error
2245                         (_("Couldn't save the part of multipart message: %s"),
2246                                 g_strerror(-err));
2247         g_free(filename);
2248 }
2249
2250 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
2251                                const gchar *cmd, MimeView *mimeview)
2252 {
2253 #ifndef G_OS_WIN32
2254         gchar *p;
2255         gchar buf[BUFFSIZE];
2256
2257         if (cmd == NULL)
2258                 mimeview_open_part_with(mimeview, partinfo, TRUE);
2259         else {
2260                 if ((p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2261                     !strchr(p + 2, '%')) {
2262                         g_snprintf(buf, sizeof(buf), cmd, filename);
2263                         if (!prefs_common.save_parts_readwrite)
2264                                 g_chmod(filename, S_IRUSR);
2265                         else
2266                                 g_chmod(filename, S_IRUSR|S_IWUSR);
2267                 } else {
2268                         g_warning("MIME viewer command-line is invalid: '%s'", cmd);
2269                         mimeview_open_part_with(mimeview, partinfo, FALSE);
2270                 }
2271                 if (execute_command_line(buf, TRUE, NULL) != 0) {
2272                         if (!prefs_common.save_parts_readwrite)
2273                                 g_chmod(filename, S_IRUSR|S_IWUSR);
2274                         mimeview_open_part_with(mimeview, partinfo, FALSE);
2275                 }
2276         }
2277 #else
2278         SHFILEINFO file_info;
2279         GError *error = NULL;
2280         gunichar2 *fn16 = g_utf8_to_utf16(filename, -1, NULL, NULL, &error);
2281
2282         if (error != NULL) {
2283                 alertpanel_error(_("Could not convert attachment name to UTF-16:\n\n%s"),
2284                                         error->message);
2285                 debug_print("filename '%s' conversion to UTF-16 failed\n", filename);
2286                 g_error_free(error);
2287                 return;
2288         }
2289
2290         if ((SHGetFileInfo((LPCWSTR)fn16, 0, &file_info, sizeof(SHFILEINFO), SHGFI_EXETYPE)) != 0) {
2291                 AlertValue val = alertpanel_full(_("Execute untrusted binary?"),
2292                                       _("This attachment is an executable file. Executing "
2293                                         "untrusted binaries is dangerous and could compromise "
2294                                         "your computer.\n\n"
2295                                         "Do you want to run this file?"), GTK_STOCK_CANCEL,
2296                                         _("Run binary"),
2297                                       NULL, FALSE, NULL, ALERT_WARNING, G_ALERTDEFAULT);
2298                 if (val == G_ALERTALTERNATE) {
2299                         debug_print("executing binary\n");
2300                         ShellExecute(NULL, L"open", (LPCWSTR)fn16, NULL, NULL, SW_SHOW);
2301                 }
2302         } else {
2303                 ShellExecute(NULL, L"open", (LPCWSTR)fn16, NULL, NULL, SW_SHOW);
2304         }
2305
2306         g_free(fn16);
2307
2308 #endif
2309 }
2310
2311 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
2312 {
2313         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
2314 }
2315
2316 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
2317 {
2318         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
2319 }
2320
2321 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
2322 {
2323         GSList *mimeview_list, *viewer_list;
2324
2325         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
2326                 MimeView *mimeview = (MimeView *) mimeview_list->data;
2327
2328                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
2329                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
2330                         mimeview->mimeviewer = NULL;
2331                 }
2332
2333                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
2334                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
2335
2336                         mimeviewer->destroy_viewer(mimeviewer);
2337                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
2338                 }
2339         }
2340
2341         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
2342 }
2343
2344 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
2345 {
2346         gint      num;
2347         MimeInfo *partinfo;
2348
2349         num      = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "icon_number"));
2350         partinfo = g_object_get_data(G_OBJECT(button), "partinfo");
2351
2352         if (event->button == 1) {
2353                 icon_selected(mimeview, num, partinfo);
2354                 gtk_widget_grab_focus(button);
2355                 icon_list_toggle_by_mime_info(mimeview, partinfo);
2356         }
2357         part_button_pressed(mimeview, event, partinfo);
2358
2359         return FALSE;
2360 }
2361
2362 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
2363 {
2364         GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(mimeview->ctree));
2365         GtkTreeIter iter;
2366         GtkTreePath *path;
2367         MimeInfo *curr = NULL;
2368
2369         if (!gtk_tree_model_get_iter_first(model, &iter))
2370                 return;
2371         path = gtk_tree_model_get_path(model, &iter);
2372
2373         do {
2374                 gtk_tree_model_get_iter(model, &iter, path);
2375                 gtk_tree_model_get(model, &iter, COL_DATA, &curr, -1);
2376                 if (curr == partinfo) {
2377                         GtkTreeSelection *sel = gtk_tree_view_get_selection(
2378                                                 GTK_TREE_VIEW(mimeview->ctree));
2379                         gtk_tree_selection_select_iter(sel, &iter);
2380                         gtk_tree_path_free(path);
2381                         return;
2382                 }
2383         } while (mimeview_tree_next(model, path));
2384
2385         gtk_tree_path_free(path);
2386 }
2387
2388 void mimeview_select_mimepart_icon(MimeView *mimeview, MimeInfo *partinfo)
2389 {
2390         icon_list_toggle_by_mime_info(mimeview, partinfo);
2391         icon_selected(mimeview, -1, partinfo);
2392 }
2393
2394 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
2395                              MimeView *mimeview)
2396 {
2397         SummaryView  *summaryview;
2398
2399         if (!event) return FALSE;
2400
2401         switch (event->keyval) {
2402         case GDK_KEY_space:
2403                 if (mimeview_scroll_page(mimeview, FALSE))
2404                         return TRUE;
2405
2406                 mimeview_select_next_part(mimeview);
2407                 return TRUE;
2408
2409                 break;
2410         case GDK_KEY_BackSpace:
2411                 mimeview_scroll_page(mimeview, TRUE);
2412                 return TRUE;
2413         case GDK_KEY_Return:
2414         case GDK_KEY_KP_Enter:
2415                 mimeview_scroll_one_line(mimeview,
2416                                          (event->state & GDK_MOD1_MASK) != 0);
2417                 return TRUE;
2418         case GDK_KEY_y:
2419                 BREAK_ON_MODIFIER_KEY();
2420                 mimeview_save_as(mimeview);
2421                 return TRUE;
2422         case GDK_KEY_t:
2423                 BREAK_ON_MODIFIER_KEY();
2424                 mimeview_display_as_text(mimeview);
2425                 return TRUE;
2426         case GDK_KEY_l:
2427                 BREAK_ON_MODIFIER_KEY();
2428                 mimeview_launch(mimeview, NULL);
2429                 return TRUE;
2430 #ifndef G_OS_WIN32
2431         case GDK_KEY_o:
2432                 BREAK_ON_MODIFIER_KEY();
2433                 mimeview_open_with(mimeview);
2434                 return TRUE;
2435 #endif
2436         case GDK_KEY_c:
2437                 BREAK_ON_MODIFIER_KEY();
2438                 mimeview_check_signature(mimeview);
2439                 return TRUE;
2440         case GDK_KEY_a:
2441                 BREAK_ON_MODIFIER_KEY();
2442                 mimeview_select_next_part(mimeview);
2443                 return TRUE;
2444         default:
2445                 break;
2446         }
2447
2448         if (!mimeview->messageview->mainwin) return FALSE;
2449         summaryview = mimeview->messageview->mainwin->summaryview;
2450         return summary_pass_key_press_event(summaryview, event);
2451 }
2452
2453 static gboolean icon_popup_menu(GtkWidget *widget, gpointer data)
2454 {
2455         MimeView *mimeview = (MimeView *)data;
2456         MimeInfo *partinfo = g_object_get_data(G_OBJECT(widget), "partinfo");
2457
2458         g_object_set_data(G_OBJECT(mimeview->popupmenu),
2459                           "pop_partinfo", partinfo);
2460         gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
2461                        NULL, NULL, NULL, NULL,
2462                        0, gtk_get_current_event_time());
2463         return TRUE;
2464 }
2465
2466 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
2467 {
2468         GtkWidget *pixmap = NULL;
2469         GtkWidget *vbox;
2470         GtkWidget *button;
2471         gchar *tip;
2472         gchar *tiptmp;
2473         const gchar *desc = NULL;
2474         gchar *sigshort = NULL;
2475         gchar *content_type;
2476         StockPixmap stockp;
2477         MimeInfo *partinfo;
2478         MimeInfo *siginfo = NULL;
2479         MimeInfo *encrypted = NULL;
2480 #ifdef GENERIC_UMPC
2481         GtkRequisition r;
2482 #endif
2483
2484         if (!prefs_common.show_inline_attachments && mimeinfo->id)
2485                 return;
2486
2487         vbox = mimeview->icon_vbox;
2488         mimeview->icon_count++;
2489         button = gtk_event_box_new();
2490
2491         g_signal_connect(G_OBJECT(button), "motion-notify-event",
2492                          G_CALLBACK(mimeview_visi_notify), mimeview);
2493         g_signal_connect(G_OBJECT(button), "leave-notify-event",
2494                          G_CALLBACK(mimeview_leave_notify), mimeview);
2495         g_signal_connect(G_OBJECT(button), "enter-notify-event",
2496                          G_CALLBACK(mimeview_enter_notify), mimeview);
2497
2498         gtk_container_set_border_width(GTK_CONTAINER(button), 2);
2499         g_object_set_data(G_OBJECT(button), "icon_number",
2500                           GINT_TO_POINTER(mimeview->icon_count));
2501         g_object_set_data(G_OBJECT(button), "partinfo",
2502                           mimeinfo);
2503
2504         switch (mimeinfo->type) {
2505
2506         case MIMETYPE_TEXT:
2507                 if (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
2508                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
2509                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched"))
2510                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
2511                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "calendar"))
2512                         stockp = STOCK_PIXMAP_MIME_TEXT_CALENDAR;
2513                 else if  (mimeinfo->subtype && (!g_ascii_strcasecmp(mimeinfo->subtype, "x-patch")
2514                                 || !g_ascii_strcasecmp(mimeinfo->subtype, "x-diff")))
2515                         stockp = STOCK_PIXMAP_MIME_TEXT_PATCH;
2516                 else
2517                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
2518                 break;
2519         case MIMETYPE_MESSAGE:
2520                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
2521                 break;
2522         case MIMETYPE_APPLICATION:
2523                 if (mimeinfo->subtype && (!g_ascii_strcasecmp(mimeinfo->subtype, "pgp-signature")
2524                     || !g_ascii_strcasecmp(mimeinfo->subtype, "x-pkcs7-signature")
2525                     || !g_ascii_strcasecmp(mimeinfo->subtype, "pkcs7-signature")))
2526                         stockp = STOCK_PIXMAP_MIME_PGP_SIG;
2527                 else if (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "pdf"))
2528                         stockp = STOCK_PIXMAP_MIME_PDF;
2529                 else if  (mimeinfo->subtype && !g_ascii_strcasecmp(mimeinfo->subtype, "postscript"))
2530                         stockp = STOCK_PIXMAP_MIME_PS;
2531                 else
2532                         stockp = STOCK_PIXMAP_MIME_APPLICATION;
2533                 break;
2534         case MIMETYPE_IMAGE:
2535                 stockp = STOCK_PIXMAP_MIME_IMAGE;
2536                 break;
2537         case MIMETYPE_AUDIO:
2538                 stockp = STOCK_PIXMAP_MIME_AUDIO;
2539                 break;
2540         default:
2541                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
2542                 break;
2543         }
2544
2545         partinfo = mimeinfo;
2546         while (partinfo != NULL) {
2547                 if (privacy_mimeinfo_is_signed(partinfo)) {
2548                         siginfo = partinfo;
2549                         break;
2550                 }
2551                 if (privacy_mimeinfo_is_encrypted(partinfo)) {
2552                         encrypted = partinfo;
2553                         break;
2554                 }
2555                 partinfo = procmime_mimeinfo_parent(partinfo);
2556         }
2557
2558         if (siginfo != NULL) {
2559                 switch (privacy_mimeinfo_get_sig_status(siginfo)) {
2560                 case SIGNATURE_UNCHECKED:
2561                 case SIGNATURE_CHECK_FAILED:
2562                 case SIGNATURE_CHECK_TIMEOUT:
2563                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2564                             STOCK_PIXMAP_PRIVACY_EMBLEM_SIGNED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2565                         break;
2566                 case SIGNATURE_OK:
2567                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2568                             STOCK_PIXMAP_PRIVACY_EMBLEM_PASSED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2569                         break;
2570                 case SIGNATURE_WARN:
2571                 case SIGNATURE_KEY_EXPIRED:
2572                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2573                             STOCK_PIXMAP_PRIVACY_EMBLEM_WARN, OVERLAY_BOTTOM_RIGHT, 6, 3);
2574                         break;
2575                 case SIGNATURE_INVALID:
2576                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2577                             STOCK_PIXMAP_PRIVACY_EMBLEM_FAILED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2578                         break;
2579                 }
2580                 sigshort = privacy_mimeinfo_sig_info_short(siginfo);
2581         } else if (encrypted != NULL) {
2582                         pixmap = stock_pixmap_widget_with_overlay(stockp,
2583                             STOCK_PIXMAP_PRIVACY_EMBLEM_ENCRYPTED, OVERLAY_BOTTOM_RIGHT, 6, 3);
2584         } else {
2585                 pixmap = stock_pixmap_widget_with_overlay(stockp, 0,
2586                                                           OVERLAY_NONE, 6, 3);
2587         }
2588         gtk_container_add(GTK_CONTAINER(button), pixmap);
2589         if (!desc) {
2590                 if (prefs_common.attach_desc)
2591                         desc = get_part_description(mimeinfo);
2592                 else
2593                         desc = get_part_name(mimeinfo);
2594         }
2595
2596         content_type = procmime_get_content_type_str(mimeinfo->type,
2597                                                      mimeinfo->subtype);
2598
2599         tip = g_strconcat("<b>", _("Type:"), "  </b>", content_type,
2600                           "\n<b>", _("Size:"), " </b>",
2601                           to_human_readable((goffset)mimeinfo->length), NULL);
2602         g_free(content_type);
2603         if (desc && *desc) {
2604                 gchar *tmp = NULL, *escaped = NULL;
2605                 if (!g_utf8_validate(desc, -1, NULL)) {
2606                         tmp = conv_filename_to_utf8(desc);
2607                 } else {
2608                         tmp = g_strdup(desc);
2609                 }
2610                 escaped = g_markup_escape_text(tmp,-1);
2611
2612                 tiptmp = g_strconcat(tip, "\n<b>",
2613                                 prefs_common.attach_desc && mimeinfo->description ?
2614                                 _("Description:") : _("Filename:"),
2615                                 " </b>", escaped, NULL);
2616                 g_free(tip);
2617                 tip = tiptmp;
2618                 g_free(tmp);
2619                 g_free(escaped);
2620         }
2621         if (sigshort && *sigshort) {
2622                 tiptmp = g_strjoin("\n", tip, g_markup_escape_text(sigshort, -1), NULL);
2623                 g_free(tip);
2624                 tip = tiptmp;
2625         }
2626         g_free(sigshort);
2627
2628         gtk_widget_set_tooltip_markup(button, tip);
2629         g_free(tip);
2630         gtk_widget_show_all(button);
2631         gtk_drag_source_set(button, GDK_BUTTON1_MASK|GDK_BUTTON3_MASK,
2632                             mimeview_mime_types, 1, GDK_ACTION_COPY);
2633
2634         g_signal_connect(G_OBJECT(button), "popup-menu",
2635                          G_CALLBACK(icon_popup_menu), mimeview);
2636         g_signal_connect(G_OBJECT(button), "button_release_event",
2637                          G_CALLBACK(icon_clicked_cb), mimeview);
2638         g_signal_connect(G_OBJECT(button), "key_press_event",
2639                          G_CALLBACK(icon_key_pressed), mimeview);
2640         g_signal_connect(G_OBJECT(button), "drag_data_get",
2641                          G_CALLBACK(mimeview_drag_data_get), mimeview);
2642         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
2643 #ifdef GENERIC_UMPC
2644         gtk_widget_size_request(pixmap, &r);
2645         gtk_widget_set_size_request(button, -1, r.height + 4);
2646 #endif
2647
2648 }
2649
2650 static void icon_list_clear (MimeView *mimeview)
2651 {
2652         GList     *child, *orig;
2653         GtkAdjustment *adj;
2654
2655         orig = gtk_container_get_children(GTK_CONTAINER(mimeview->icon_vbox));
2656         for (child = orig; child != NULL; child = g_list_next(child)) {
2657                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
2658                                        GTK_WIDGET(child->data));
2659         }
2660         g_list_free(orig);
2661         mimeview->icon_count = 0;
2662         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2663         gtk_adjustment_set_value(adj, gtk_adjustment_get_lower(adj));
2664         gtk_adjustment_changed(adj);
2665 }
2666
2667 /*!
2668  *\brief        Used to 'click' the next or previous icon.
2669  *
2670  *\return       true if the icon 'number' exists and was selected.
2671  */
2672 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
2673                                          GtkAllocation *size, MimeView *mimeview)
2674 {
2675         GtkAllocation vbox_size;
2676         GtkAllocation layout_size;
2677         GtkAdjustment *adj;
2678         guint width;
2679         guint height;
2680
2681         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
2682
2683         gtk_widget_get_allocation(mimeview->icon_vbox, &vbox_size);
2684         gtk_widget_get_allocation(mimeview->icon_scroll, &layout_size);
2685
2686         gtk_layout_get_size(GTK_LAYOUT(mimeview->icon_scroll), &width, &height);
2687         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
2688                             width,
2689                             MAX(vbox_size.height, layout_size.height));
2690         gtk_adjustment_set_step_increment(adj, 10);
2691 }
2692
2693 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
2694 {
2695         GtkRequisition size;
2696         GtkRequisition requisition;
2697
2698         cm_return_if_fail(mimeinfo != NULL);
2699
2700         while (mimeinfo != NULL) {
2701                 if (mimeinfo->type != MIMETYPE_MULTIPART)
2702                         icon_list_append_icon(mimeview, mimeinfo);
2703                 if (mimeinfo->node->children != NULL)
2704                         icon_list_create(mimeview,
2705                                 (MimeInfo *) mimeinfo->node->children->data);
2706                 mimeinfo = mimeinfo->node->next != NULL
2707                          ? (MimeInfo *) mimeinfo->node->next->data
2708                          : NULL;
2709         }
2710         gtk_widget_size_request(mimeview->icon_vbox, &size);
2711         gtk_widget_get_requisition(mimeview->icon_mainbox, &requisition);
2712         if (size.width > requisition.width) {
2713                 gtk_widget_set_size_request(mimeview->icon_mainbox,
2714                                             size.width, -1);
2715         }
2716         if (mimeview->opened)
2717                 icon_list_toggle_by_mime_info(mimeview,
2718                         mimeview_get_node_part(mimeview, mimeview->opened));
2719 }
2720
2721 static void icon_list_toggle_by_mime_info (MimeView     *mimeview,
2722                                            MimeInfo     *mimeinfo)
2723 {
2724         GList *children, *child;
2725
2726         children = gtk_container_get_children(GTK_CONTAINER(mimeview->icon_vbox));
2727         for (child = children; child != NULL; child = g_list_next(child)) {
2728                 gboolean *highlight = NULL;
2729                 GtkWidget *icon = gtk_bin_get_child(GTK_BIN(child->data));
2730
2731                 if (!GTK_IS_EVENT_BOX(child->data))
2732                         continue;
2733
2734                 highlight = g_object_get_data(G_OBJECT(icon), "highlight");
2735                 *highlight = (g_object_get_data(G_OBJECT(child->data),
2736                                       "partinfo") == (gpointer)mimeinfo);
2737
2738                 gtk_widget_queue_draw(icon);
2739         }
2740         g_list_free(children);
2741 }
2742
2743 static void ctree_size_allocate_cb(GtkWidget *widget, GtkAllocation *allocation,
2744                                     MimeView *mimeview)
2745 {
2746         prefs_common.mimeview_tree_height = allocation->height;
2747 }
2748
2749 static gint mime_toggle_button_cb(GtkWidget *button, GdkEventButton *event,
2750                                     MimeView *mimeview)
2751 {
2752         g_object_ref(button);
2753
2754         mimeview_leave_notify(button, NULL, NULL);
2755
2756         mimeview->ctree_mode = !mimeview->ctree_mode;
2757         if (mimeview->ctree_mode) {
2758                 gtk_arrow_set(GTK_ARROW(gtk_bin_get_child(GTK_BIN((button)))), GTK_ARROW_RIGHT,
2759                                         GTK_SHADOW_NONE);
2760                 gtk_widget_hide(mimeview->icon_mainbox);
2761                 gtk_widget_show(mimeview->ctree_mainbox);
2762                 gtk_paned_set_position(GTK_PANED(mimeview->paned),
2763                                         prefs_common.mimeview_tree_height);
2764
2765                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
2766                                         button);
2767                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
2768                                    button, FALSE, FALSE, 0);
2769         } else {
2770                 gtk_arrow_set(GTK_ARROW(gtk_bin_get_child(GTK_BIN((button)))), GTK_ARROW_LEFT,
2771                               GTK_SHADOW_NONE);
2772                 gtk_widget_hide(mimeview->ctree_mainbox);
2773                 gtk_widget_show(mimeview->icon_mainbox);
2774                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
2775
2776                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
2777                                         button);
2778                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
2779                                    button, FALSE, FALSE, 0);
2780                 gtk_box_reorder_child(GTK_BOX(gtk_widget_get_parent(button)), button, 0);
2781                 if (mimeview->opened)
2782                         icon_list_toggle_by_mime_info(mimeview,
2783                                         mimeview_get_node_part(mimeview, mimeview->opened));
2784                 summary_grab_focus(mimeview->mainwin->summaryview);
2785         }
2786         g_object_unref(button);
2787         return TRUE;
2788 }
2789
2790 void mimeview_update (MimeView *mimeview)
2791 {
2792         if (mimeview && mimeview->mimeinfo) {
2793                 icon_list_clear(mimeview);
2794                 icon_list_create(mimeview, mimeview->mimeinfo);
2795         }
2796 }
2797
2798 void mimeview_handle_cmd(MimeView *mimeview, const gchar *cmd, GdkEventButton *event, gpointer data)
2799 {
2800         MessageView *msgview = NULL;
2801         MainWindow *mainwin = NULL;
2802
2803         if (!cmd)
2804                 return;
2805
2806         msgview = mimeview->messageview;
2807         if (!msgview)
2808                 return;
2809
2810         mainwin = msgview->mainwin;
2811         if (!mainwin)
2812                 return;
2813
2814         g_object_set_data(G_OBJECT(mimeview->popupmenu),
2815                           "pop_partinfo", NULL);
2816
2817         if (!strcmp(cmd, "sc://view_log"))
2818                 log_window_show(mainwin->logwin);
2819         else if (!strcmp(cmd, "sc://save_as"))
2820                 mimeview_save_as(mimeview);
2821         else if (!strcmp(cmd, "sc://display_as_text"))
2822                 mimeview_display_as_text(mimeview);
2823 #ifndef G_OS_WIN32
2824         else if (!strcmp(cmd, "sc://open_with"))
2825                 mimeview_open_with(mimeview);
2826 #endif
2827         else if (!strcmp(cmd, "sc://open"))
2828                 mimeview_launch(mimeview, NULL);
2829         else if (!strcmp(cmd, "sc://select_attachment") && data != NULL) {
2830                 icon_list_toggle_by_mime_info(mimeview, (MimeInfo *)data);
2831                 icon_selected(mimeview, -1, (MimeInfo *)data);
2832         } else if (!strcmp(cmd, "sc://open_attachment") && data != NULL) {
2833                 mimeview_launch(mimeview, (MimeInfo *)data);
2834         } else if (!strcmp(cmd, "sc://menu_attachment") && data != NULL) {
2835                 mimeview->spec_part = (MimeInfo *)data;
2836                 part_button_pressed(mimeview, event, (MimeInfo *)data);
2837         } else if (!strncmp(cmd, "sc://search_tags:", strlen("sc://search_tags:"))) {
2838                 const gchar *tagname = cmd + strlen("sc://search_tags:");
2839                 gchar *buf = g_strdup_printf("tag matchcase \"%s\"", tagname);
2840                 gtk_toggle_button_set_active(
2841                                 GTK_TOGGLE_BUTTON(mimeview->messageview->mainwin->summaryview->toggle_search),
2842                                 TRUE);
2843                 quicksearch_set(mimeview->messageview->mainwin->summaryview->quicksearch,
2844                                 ADVANCED_SEARCH_EXTENDED, buf);
2845                 g_free(buf);
2846         }
2847 }
2848
2849 gboolean mimeview_scroll_page(MimeView *mimeview, gboolean up)
2850 {
2851         if (mimeview->type == MIMEVIEW_TEXT)
2852                 return textview_scroll_page(mimeview->textview, up);
2853         else if (mimeview->mimeviewer) {
2854                 MimeViewer *mimeviewer = mimeview->mimeviewer;
2855                 if (mimeviewer->scroll_page)
2856                         return mimeviewer->scroll_page(mimeviewer, up);
2857         }
2858         return TRUE;
2859 }
2860
2861 void mimeview_scroll_one_line(MimeView *mimeview, gboolean up)
2862 {
2863         if (mimeview->type == MIMEVIEW_TEXT)
2864                 textview_scroll_one_line(mimeview->textview, up);
2865         else if (mimeview->mimeviewer) {
2866                 MimeViewer *mimeviewer = mimeview->mimeviewer;
2867                 if (mimeviewer->scroll_one_line)
2868                         mimeviewer->scroll_one_line(mimeviewer, up);
2869         }
2870 }