src/mimeview.c

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