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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 <gdk/gdkkeysyms.h>
  28 #include <gtk/gtknotebook.h>
  29 #include <gtk/gtkscrolledwindow.h>
  30 #include <gtk/gtkctree.h>
  31 #include <gtk/gtkvbox.h>
  32 #include <gtk/gtkhpaned.h>
  33 #include <gtk/gtktext.h>
  34 #include <gtk/gtksignal.h>
  35 #include <gtk/gtkmenu.h>
  36 #include <gtk/gtkdnd.h>
  37 #include <gtk/gtkselection.h>
  38 #include <gtk/gtktooltips.h>
  39 #include <gtk/gtkcontainer.h>
  40 #include <stdio.h>
  41
  42 #ifndef HAVE_APACHE_FNMATCH
  43 /* kludge: apache's fnmatch clashes with <regex.h>, don't include
  44  * fnmatch.h */
  45 #include <fnmatch.h>
  46 #endif
  47
  48 #include "intl.h"
  49 #include "main.h"
  50 #include "mimeview.h"
  51 #include "textview.h"
  52 #include "procmime.h"
  53 #include "summaryview.h"
  54 #include "menu.h"
  55 #include "filesel.h"
  56 #include "alertpanel.h"
  57 #include "inputdialog.h"
  58 #include "utils.h"
  59 #include "gtkutils.h"
  60 #include "prefs_common.h"
  61 #include "rfc2015.h"
  62 #include "stock_pixmap.h"
  63 #include "gtk/gtkvscrollbutton.h"
  64
  65
  66 typedef enum
  67 {
  68         COL_MIMETYPE = 0,
  69         COL_SIZE     = 1,
  70         COL_NAME     = 2
  71 } MimeViewColumnPos;
  72
  73 #define N_MIMEVIEW_COLS 3
  74 #define ICONBOX_DEFAULT_WIDTH 36
  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 static void mimeview_clear                      (MimeView       *mimeview);
  87
  88 static void mimeview_selected           (GtkCTree       *ctree,
  89                                          GtkCTreeNode   *node,
  90                                          gint            column,
  91                                          MimeView       *mimeview);
  92 static void mimeview_start_drag         (GtkWidget      *widget,
  93                                          gint            button,
  94                                          GdkEvent       *event,
  95                                          MimeView       *mimeview);
  96 static gint mimeview_button_pressed     (GtkWidget      *widget,
  97                                          GdkEventButton *event,
  98                                          MimeView       *mimeview);
  99 static gint mimeview_key_pressed        (GtkWidget      *widget,
 100                                          GdkEventKey    *event,
 101                                          MimeView       *mimeview);
 102
 103 static void mimeview_drag_data_get      (GtkWidget        *widget,
 104                                          GdkDragContext   *drag_context,
 105                                          GtkSelectionData *selection_data,
 106                                          guint             info,
 107                                          guint             time,
 108                                          MimeView         *mimeview);
 109
 110 static void mimeview_display_as_text    (MimeView       *mimeview);
 111 static void mimeview_save_as            (MimeView       *mimeview);
 112 static void mimeview_save_all           (MimeView       *mimeview);
 113 static void mimeview_launch             (MimeView       *mimeview);
 114 static void mimeview_open_with          (MimeView       *mimeview);
 115 static void mimeview_view_file          (const gchar    *filename,
 116                                          MimeInfo       *partinfo,
 117                                          const gchar    *cmdline);
 118 static gboolean icon_clicked_cb         (GtkWidget      *button,
 119                                          GdkEventButton *event,
 120                                          MimeView       *mimeview);
 121 static void icon_list_append_icon       (MimeView       *mimeview,
 122                                          MimeInfo       *mimeinfo);
 123 static void icon_list_create            (MimeView       *mimeview,
 124                                          MimeInfo       *mimeinfo);
 125 static void icon_list_clear             (MimeView       *mimeview);
 126 static void mime_toggle_button_cb       (GtkWidget      *button,
 127                                          MimeView       *mimeview);
 128 static void part_button_pressed         (MimeView       *mimeview,
 129                                          GdkEventButton *event,
 130                                          MimeInfo       *partinfo);
 131 static void icon_scroll_size_allocate_cb(GtkWidget      *widget,
 132                                          GtkAllocation  *layout_size,
 133                                          MimeView       *mimeview);
 134
 135 static GtkItemFactoryEntry mimeview_popup_entries[] =
 136 {
 137         {N_("/_Open"),            NULL, mimeview_launch,          0, NULL},
 138         {N_("/Open _with..."),    NULL, mimeview_open_with,       0, NULL},
 139         {N_("/_Display as text"), NULL, mimeview_display_as_text, 0, NULL},
 140         {N_("/_Save as..."),      NULL, mimeview_save_as,         0, NULL},
 141         {N_("/Save _all..."),     NULL, mimeview_save_all,        0, NULL}
 142 #if USE_GPGME
 143         ,
 144         {N_("/_Check signature"), NULL, mimeview_check_signature, 0, NULL}
 145 #endif
 146 };
 147
 148 static GtkTargetEntry mimeview_mime_types[] =
 149 {
 150         {"text/uri-list", 0, 0}
 151 };
 152
 153 GSList *mimeviewer_factories;
 154 GSList *mimeviews;
 155
 156 MimeView *mimeview_create(MainWindow *mainwin)
 157 {
 158         MimeView *mimeview;
 159
 160         GtkWidget *notebook;
 161         GtkWidget *vbox;
 162         GtkWidget *paned;
 163         GtkWidget *scrolledwin;
 164         GtkWidget *ctree;
 165         GtkWidget *mime_notebook;
 166         GtkWidget *popupmenu;
 167         GtkWidget *ctree_mainbox;
 168         GtkWidget *mime_toggle;
 169         GtkWidget *icon_mainbox;
 170         GtkWidget *icon_scroll;
 171         GtkWidget *icon_vbox;
 172         GtkWidget *arrow;
 173         GtkWidget *scrollbutton;
 174         GtkTooltips *tooltips;
 175         GtkItemFactory *popupfactory;
 176         gchar *titles[N_MIMEVIEW_COLS];
 177         gint n_entries;
 178         gint i;
 179
 180         debug_print("Creating MIME view...\n");
 181         mimeview = g_new0(MimeView, 1);
 182
 183         titles[COL_MIMETYPE] = _("MIME Type");
 184         titles[COL_SIZE]     = _("Size");
 185         titles[COL_NAME]     = _("Name");
 186
 187         notebook = gtk_notebook_new();
 188         gtk_notebook_set_scrollable(GTK_NOTEBOOK(notebook), TRUE);
 189         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(notebook), FALSE);
 190         gtk_notebook_set_show_border(GTK_NOTEBOOK(notebook), FALSE);
 191
 192         vbox = gtk_vbox_new(FALSE, 0);
 193         gtk_container_add(GTK_CONTAINER(notebook), vbox);
 194
 195         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 196         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 197                                        GTK_POLICY_AUTOMATIC,
 198                                        GTK_POLICY_ALWAYS);
 199
 200         ctree = gtk_sctree_new_with_titles(N_MIMEVIEW_COLS, 0, titles);
 201         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 202         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
 203         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_SIZE,
 204                                            GTK_JUSTIFY_RIGHT);
 205         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_MIMETYPE, 200);
 206         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_SIZE, 50);
 207         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_NAME, 200);
 208         for (i = 0; i < N_MIMEVIEW_COLS; i++)
 209                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 210                                        GTK_CAN_FOCUS);
 211         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 212
 213         gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
 214                            GTK_SIGNAL_FUNC(mimeview_selected), mimeview);
 215         gtk_signal_connect(GTK_OBJECT(ctree), "button_press_event",
 216                            GTK_SIGNAL_FUNC(mimeview_button_pressed), mimeview);
 217         gtk_signal_connect(GTK_OBJECT(ctree), "key_press_event",
 218                            GTK_SIGNAL_FUNC(mimeview_key_pressed), mimeview);
 219         gtk_signal_connect(GTK_OBJECT (ctree),"start_drag",
 220                            GTK_SIGNAL_FUNC (mimeview_start_drag), mimeview);
 221         gtk_signal_connect(GTK_OBJECT(ctree), "drag_data_get",
 222                            GTK_SIGNAL_FUNC(mimeview_drag_data_get), mimeview);
 223
 224         mime_notebook = gtk_notebook_new();
 225         gtk_widget_show(mime_notebook);
 226         GTK_WIDGET_UNSET_FLAGS(mime_notebook, GTK_CAN_FOCUS);
 227         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(mime_notebook), FALSE);
 228         gtk_notebook_set_show_border(GTK_NOTEBOOK(mime_notebook), FALSE);
 229
 230         gtk_container_add(GTK_CONTAINER(notebook), mime_notebook);
 231         gtk_notebook_set_page(GTK_NOTEBOOK(notebook), 0);
 232
 233         icon_vbox = gtk_vbox_new(FALSE,0);
 234         icon_scroll = gtk_layout_new(NULL, NULL);
 235         gtk_layout_put(GTK_LAYOUT(icon_scroll), icon_vbox, 0, 0);
 236         scrollbutton = gtk_vscrollbutton_new(gtk_layout_get_vadjustment(GTK_LAYOUT(icon_scroll)));
 237
 238         mime_toggle = gtk_toggle_button_new();
 239         arrow = gtk_arrow_new(GTK_ARROW_LEFT, GTK_SHADOW_NONE);
 240         gtk_widget_show(arrow);
 241         gtk_container_add(GTK_CONTAINER(mime_toggle), arrow);
 242         gtk_signal_connect(GTK_OBJECT(mime_toggle), "toggled",
 243                            GTK_SIGNAL_FUNC(mime_toggle_button_cb), mimeview);
 244
 245         icon_mainbox = gtk_vbox_new(FALSE, 0);
 246         gtk_box_pack_start(GTK_BOX(icon_mainbox), mime_toggle, FALSE, FALSE, 0);
 247         gtk_box_pack_start(GTK_BOX(icon_mainbox), icon_scroll, TRUE, TRUE, 3);
 248         gtk_box_pack_end(GTK_BOX(icon_mainbox), scrollbutton, FALSE, FALSE, 0);
 249         gtk_signal_connect(GTK_OBJECT(icon_mainbox), "size_allocate",
 250                         GTK_SIGNAL_FUNC(icon_scroll_size_allocate_cb), mimeview);
 251         gtk_widget_set_usize(icon_mainbox, ICONBOX_DEFAULT_WIDTH, -1);
 252
 253         ctree_mainbox = gtk_vbox_new(FALSE, 0);
 254         gtk_box_pack_start(GTK_BOX(ctree_mainbox), scrolledwin, TRUE, TRUE, 0);
 255
 256         n_entries = sizeof(mimeview_popup_entries) /
 257                 sizeof(mimeview_popup_entries[0]);
 258         popupmenu = menu_create_items(mimeview_popup_entries, n_entries,
 259                                       "<MimeView>", &popupfactory, mimeview);
 260         tooltips = gtk_tooltips_new();
 261         gtk_tooltips_set_delay(tooltips, 0);
 262
 263         paned = gtk_hpaned_new();
 264         gtk_paned_set_gutter_size(GTK_PANED(paned), 0);
 265         gtk_paned_pack1(GTK_PANED(paned), notebook, TRUE, TRUE);
 266         gtk_paned_pack2(GTK_PANED(paned), icon_mainbox, FALSE, FALSE);
 267
 268
 269         gtk_widget_ref(icon_mainbox);
 270         gtk_widget_ref(ctree_mainbox);
 271
 272         gtk_widget_show_all(paned);
 273         gtk_widget_show_all(icon_mainbox);
 274         gtk_widget_show_all(ctree_mainbox);
 275
 276         mimeview->notebook      = notebook;
 277         mimeview->vbox          = vbox;
 278         mimeview->paned         = paned;
 279         mimeview->scrolledwin   = scrolledwin;
 280         mimeview->ctree         = ctree;
 281         mimeview->mime_notebook = mime_notebook;
 282         mimeview->popupmenu     = popupmenu;
 283         mimeview->popupfactory  = popupfactory;
 284         mimeview->type          = -1;
 285         mimeview->ctree_mainbox = ctree_mainbox;
 286         mimeview->icon_scroll   = icon_scroll;
 287         mimeview->icon_vbox     = icon_vbox;
 288         mimeview->icon_mainbox  = icon_mainbox;
 289         mimeview->icon_count    = 0;
 290         mimeview->mainwin       = mainwin;
 291         mimeview->tooltips      = tooltips;
 292         mimeview->oldsize       = 160;
 293         mimeview->mime_toggle   = mime_toggle;
 294
 295         mimeview->target_list   = gtk_target_list_new(mimeview_mime_types, 1);
 296
 297         mimeviews = g_slist_prepend(mimeviews, mimeview);
 298
 299         return mimeview;
 300 }
 301
 302 void mimeview_init(MimeView *mimeview)
 303 {
 304         textview_init(mimeview->textview);
 305
 306         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 307                 GTK_WIDGET_PTR(mimeview->textview));
 308 }
 309
 310 /*
 311  * Check whether the message is OpenPGP signed
 312  */
 313 #if USE_GPGME
 314 static gboolean mimeview_is_signed(MimeView *mimeview)
 315 {
 316         MimeInfo *partinfo = NULL;
 317
 318         debug_print("mimeview_is signed of %p\n", mimeview);
 319
 320         if (!mimeview) return FALSE;
 321         if (!mimeview->opened) return FALSE;
 322
 323         debug_print("mimeview_is_signed: open\n" );
 324
 325         if (!mimeview->file) return FALSE;
 326
 327         debug_print("mimeview_is_signed: file\n" );
 328
 329         partinfo = gtk_ctree_node_get_row_data
 330                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
 331         g_return_val_if_fail(partinfo != NULL, FALSE);
 332
 333         /* walk the tree and see whether there is a signature somewhere */
 334         do {
 335                 if (rfc2015_has_signature(partinfo))
 336                         return TRUE;
 337         } while ((partinfo = partinfo->parent) != NULL);
 338
 339         debug_print("mimeview_is_signed: FALSE\n" );
 340
 341         return FALSE;
 342 }
 343
 344 static void set_unchecked_signature(MimeInfo *mimeinfo)
 345 {
 346         MimeInfo *sig_partinfo;
 347
 348         sig_partinfo = rfc2015_find_signature(mimeinfo);
 349         if (sig_partinfo == NULL) return;
 350
 351         g_free(sig_partinfo->sigstatus);
 352         sig_partinfo->sigstatus =
 353                 g_strdup(_("Right-click here to verify the signature"));
 354
 355         g_free(sig_partinfo->sigstatus_full);
 356         sig_partinfo->sigstatus_full = NULL;
 357 }
 358 #endif /* USE_GPGME */
 359
 360 void mimeview_show_message(MimeView *mimeview, MimeInfo *mimeinfo,
 361                            const gchar *file)
 362 {
 363         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 364         GtkCTreeNode *node;
 365         FILE *fp;
 366
 367         mimeview_clear(mimeview);
 368         textview_clear(mimeview->messageview->textview);
 369
 370         g_return_if_fail(file != NULL);
 371         g_return_if_fail(mimeinfo != NULL);
 372
 373         mimeview->mimeinfo = mimeinfo;
 374
 375         mimeview->file = g_strdup(file);
 376
 377 #if USE_GPGME
 378         if (prefs_common.auto_check_signatures && gpg_started) {
 379                 if ((fp = fopen(file, "rb")) == NULL) {
 380                         FILE_OP_ERROR(file, "fopen");
 381                         return;
 382                 }
 383                 rfc2015_check_signature(mimeinfo, fp);
 384                 fclose(fp);
 385         } else
 386                 set_unchecked_signature(mimeinfo);
 387 #endif
 388
 389         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree), mimeview_selected,
 390                                          mimeview);
 391
 392         mimeview_set_multipart_tree(mimeview, mimeinfo, NULL);
 393         icon_list_create(mimeview, mimeinfo);
 394
 395         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 396                                            mimeview_selected, mimeview);
 397
 398         /* search first text part */
 399         for (node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 400              node != NULL; node = GTK_CTREE_NODE_NEXT(node)) {
 401                 MimeInfo *partinfo;
 402
 403                 partinfo = gtk_ctree_node_get_row_data(ctree, node);
 404                 if (partinfo &&
 405                     (partinfo->mime_type == MIME_TEXT ||
 406                      partinfo->mime_type == MIME_TEXT_HTML))
 407                         break;
 408         }
 409         textview_show_message(mimeview->messageview->textview, mimeinfo, file);
 410
 411         if (!node)
 412                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 413
 414         if (node) {
 415                 gtk_ctree_select(ctree, node);
 416                 gtkut_ctree_set_focus_row(ctree, node);
 417                 gtk_widget_grab_focus(mimeview->ctree);
 418         }
 419 }
 420
 421 void mimeview_destroy(MimeView *mimeview)
 422 {
 423         GSList *cur;
 424
 425         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 426                 MimeViewer *viewer = (MimeViewer *) cur->data;
 427                 gtk_container_remove(GTK_CONTAINER(mimeview->mime_notebook),
 428                         GTK_WIDGET(viewer->get_widget(viewer)));
 429                 viewer->destroy_viewer(viewer);
 430         }
 431         g_slist_free(mimeview->viewers);
 432         gtk_target_list_unref(mimeview->target_list);
 433
 434         procmime_mimeinfo_free_all(mimeview->mimeinfo);
 435         g_free(mimeview->file);
 436         g_free(mimeview);
 437
 438         mimeviews = g_slist_remove(mimeviews, mimeview);
 439
 440         gtk_widget_unref(mimeview->icon_mainbox);
 441         gtk_widget_unref(mimeview->ctree_mainbox);
 442 }
 443
 444 MimeInfo *mimeview_get_selected_part(MimeView *mimeview)
 445 {
 446         if (gtk_notebook_get_current_page
 447                 (GTK_NOTEBOOK(mimeview->notebook)) == 0)
 448                 return NULL;
 449
 450         return gtk_ctree_node_get_row_data
 451                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
 452 }
 453
 454 static void mimeview_set_multipart_tree(MimeView *mimeview,
 455                                         MimeInfo *mimeinfo,
 456                                         GtkCTreeNode *parent)
 457 {
 458         GtkCTreeNode *node;
 459
 460         g_return_if_fail(mimeinfo != NULL);
 461
 462         if (mimeinfo->children)
 463                 mimeinfo = mimeinfo->children;
 464
 465         while (mimeinfo != NULL) {
 466                 node = mimeview_append_part(mimeview, mimeinfo, parent);
 467
 468                 if (mimeinfo->children)
 469                         mimeview_set_multipart_tree(mimeview, mimeinfo, node);
 470                 else if (mimeinfo->sub &&
 471                          mimeinfo->sub->mime_type != MIME_TEXT &&
 472                          mimeinfo->sub->mime_type != MIME_TEXT_HTML)
 473                         mimeview_set_multipart_tree(mimeview, mimeinfo->sub,
 474                                                     node);
 475                 mimeinfo = mimeinfo->next;
 476         }
 477 }
 478
 479 static gchar *get_part_name(MimeInfo *partinfo)
 480 {
 481 #if USE_GPGME
 482         if (partinfo->sigstatus)
 483                 return partinfo->sigstatus;
 484         else
 485 #endif
 486         if (partinfo->name)
 487                 return partinfo->name;
 488         else if (partinfo->filename)
 489                 return partinfo->filename;
 490         else if (partinfo->description)
 491                 return partinfo->description;
 492         else
 493                 return "";
 494 }
 495
 496 static gchar *get_part_description(MimeInfo *partinfo)
 497 {
 498         if (partinfo->description)
 499                 return partinfo->description;
 500         else if (partinfo->name)
 501                 return partinfo->name;
 502         else if (partinfo->filename)
 503                 return partinfo->filename;
 504         else
 505                 return "";
 506 }
 507
 508 static GtkCTreeNode *mimeview_append_part(MimeView *mimeview,
 509                                           MimeInfo *partinfo,
 510                                           GtkCTreeNode *parent)
 511 {
 512         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 513         GtkCTreeNode *node;
 514         gchar *str[N_MIMEVIEW_COLS];
 515
 516         str[COL_MIMETYPE] =
 517                 partinfo->content_type ? partinfo->content_type : "";
 518         str[COL_SIZE] = to_human_readable(partinfo->size);
 519         if (prefs_common.attach_desc)
 520                 str[COL_NAME] = get_part_description(partinfo);
 521         else
 522                 str[COL_NAME] = get_part_name(partinfo);
 523
 524         node = gtk_ctree_insert_node(ctree, parent, NULL, str, 0,
 525                                      NULL, NULL, NULL, NULL,
 526                                      FALSE, TRUE);
 527         gtk_ctree_node_set_row_data(ctree, node, partinfo);
 528
 529         return node;
 530 }
 531
 532 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
 533 {
 534         FILE *fp;
 535         const gchar *fname;
 536 #if USE_GPGME
 537         MimeInfo *pi;
 538 #endif
 539
 540         if (!partinfo) return;
 541
 542 #if USE_GPGME
 543         for (pi = partinfo; pi && !pi->plaintextfile ; pi = pi->parent)
 544                 ;
 545         fname = pi ? pi->plaintextfile : mimeview->file;
 546 #else
 547         fname = mimeview->file;
 548 #endif /* USE_GPGME */
 549         if (!fname) return;
 550
 551         if ((fp = fopen(fname, "rb")) == NULL) {
 552                 FILE_OP_ERROR(fname, "fopen");
 553                 return;
 554         }
 555
 556         if (fseek(fp, partinfo->fpos, SEEK_SET) < 0) {
 557                 FILE_OP_ERROR(mimeview->file, "fseek");
 558                 fclose(fp);
 559                 return;
 560         }
 561
 562         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 563         textview_show_part(mimeview->textview, partinfo, fp);
 564
 565         fclose(fp);
 566 }
 567
 568 static MimeViewer *get_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 569 {
 570         GSList *cur;
 571         MimeViewerFactory *factory = NULL;
 572         MimeViewer *viewer = NULL;
 573
 574 /*
 575  * FNM_CASEFOLD is a GNU extension
 576  * if its not defined copy the string to the stack and
 577  * convert the copy to lower case
 578  */
 579 #ifndef FNM_CASEFOLD
 580 #define FNM_CASEFOLD 0
 581         Xstrdup_a(content_type, content_type, return NULL);
 582         g_strdown((gchar *)content_type);
 583 #endif
 584
 585         for (cur = mimeviewer_factories; cur != NULL; cur = g_slist_next(cur)) {
 586                 MimeViewerFactory *curfactory = cur->data;
 587                 gint i = 0;
 588
 589                 while (curfactory->content_types[i] != NULL) {
 590                         debug_print("%s\n", curfactory->content_types[i]);
 591                         if(!fnmatch(curfactory->content_types[i], content_type, FNM_CASEFOLD)) {
 592                                 factory = curfactory;
 593                                 break;
 594                         }
 595                         i++;
 596                 }
 597                 if (factory != NULL)
 598                         break;
 599         }
 600         if (factory == NULL)
 601                 return NULL;
 602
 603         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 604                 MimeViewer *curviewer = cur->data;
 605
 606                 if (curviewer->factory == factory)
 607                         return curviewer;
 608         }
 609         viewer = factory->create_viewer();
 610         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 611                 GTK_WIDGET(viewer->get_widget(viewer)));
 612
 613         mimeview->viewers = g_slist_append(mimeview->viewers, viewer);
 614
 615         return viewer;
 616 }
 617
 618 static MimeViewer *get_viewer_for_mimeinfo(MimeView *mimeview, MimeInfo *partinfo)
 619 {
 620         gchar *content_type = NULL;
 621         MimeViewer *viewer = NULL;
 622
 623         if ((partinfo->mime_type == MIME_APPLICATION_OCTET_STREAM) &&
 624             (partinfo->name != NULL)) {
 625                 content_type = procmime_get_mime_type(partinfo->name);
 626         } else {
 627                 content_type = g_strdup(partinfo->content_type);
 628         }
 629
 630         if (content_type != NULL) {
 631                 viewer = get_viewer_for_content_type(mimeview, content_type);
 632                 g_free(content_type);
 633         }
 634
 635         return viewer;
 636 }
 637
 638 static gboolean mimeview_show_part(MimeView *mimeview, MimeInfo *partinfo)
 639 {
 640         MimeViewer *viewer;
 641
 642         viewer = get_viewer_for_mimeinfo(mimeview, partinfo);
 643         if (viewer == NULL) {
 644                 if (mimeview->mimeviewer != NULL)
 645                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 646                 mimeview->mimeviewer = NULL;
 647                 return FALSE;
 648         }
 649
 650         if (mimeview->mimeviewer != viewer) {
 651                 if (mimeview->mimeviewer != NULL)
 652                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 653                 mimeview->mimeviewer = viewer;
 654                 mimeview_change_view_type(mimeview, MIMEVIEW_VIEWER);
 655         }
 656         viewer->show_mimepart(viewer, mimeview->file, partinfo);
 657
 658         return TRUE;
 659 }
 660
 661 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
 662 {
 663         TextView  *textview  = mimeview->textview;
 664
 665         if ((mimeview->type != MIMEVIEW_VIEWER) &&
 666             (mimeview->type == type)) return;
 667
 668         switch (type) {
 669         case MIMEVIEW_TEXT:
 670                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 671                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 672                         GTK_WIDGET_PTR(textview)));
 673                 break;
 674         case MIMEVIEW_VIEWER:
 675                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 676                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 677                         GTK_WIDGET(mimeview->mimeviewer->get_widget(mimeview->mimeviewer))));
 678                 break;
 679         default:
 680                 return;
 681         }
 682
 683         mimeview->type = type;
 684 }
 685
 686 static void mimeview_clear(MimeView *mimeview)
 687 {
 688         GtkCList *clist = GTK_CLIST(mimeview->ctree);
 689
 690         procmime_mimeinfo_free_all(mimeview->mimeinfo);
 691         mimeview->mimeinfo = NULL;
 692
 693         gtk_clist_clear(clist);
 694         textview_clear(mimeview->textview);
 695         if (mimeview->mimeviewer != NULL)
 696                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 697
 698         mimeview->opened = NULL;
 699
 700         g_free(mimeview->file);
 701         mimeview->file = NULL;
 702         icon_list_clear(mimeview);
 703
 704         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(mimeview->mime_toggle)))
 705                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->notebook), 0);
 706 }
 707
 708 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 709                               MimeView *mimeview)
 710 {
 711         MimeInfo *partinfo;
 712
 713         if (mimeview->opened == node) return;
 714         mimeview->opened = node;
 715         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
 716
 717         partinfo = gtk_ctree_node_get_row_data(ctree, node);
 718         if (!partinfo) return;
 719
 720         /* ungrab the mouse event */
 721         if (GTK_WIDGET_HAS_GRAB(ctree)) {
 722                 gtk_grab_remove(GTK_WIDGET(ctree));
 723                 if (gdk_pointer_is_grabbed())
 724                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
 725         }
 726
 727         mimeview->textview->default_text = FALSE;
 728
 729         if (!mimeview_show_part(mimeview, partinfo)) {
 730                 switch (partinfo->mime_type) {
 731                 case MIME_TEXT:
 732                 case MIME_TEXT_HTML:
 733                 case MIME_TEXT_ENRICHED:
 734                 case MIME_MESSAGE_RFC822:
 735                 case MIME_MULTIPART:
 736                         mimeview_show_message_part(mimeview, partinfo);
 737
 738                         break;
 739                 default:
 740                         mimeview->textview->default_text = TRUE;
 741                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 742 #if USE_GPGME
 743                         if (g_strcasecmp(partinfo->content_type,
 744                                          "application/pgp-signature") == 0)
 745                                 textview_show_signature_part(mimeview->textview,
 746                                                              partinfo);
 747                         else
 748 #endif
 749                                 textview_show_mime_part(mimeview->textview, partinfo);
 750                         break;
 751                 }
 752         }
 753 }
 754
 755 static void mimeview_start_drag(GtkWidget *widget, gint button,
 756                                 GdkEvent *event, MimeView *mimeview)
 757 {
 758         GdkDragContext *context;
 759         MimeInfo *partinfo;
 760
 761         g_return_if_fail(mimeview != NULL);
 762
 763         partinfo = mimeview_get_selected_part(mimeview);
 764         if (partinfo->filename == NULL && partinfo->name == NULL) return;
 765
 766         context = gtk_drag_begin(widget, mimeview->target_list,
 767                                  GDK_ACTION_COPY, button, event);
 768         gtk_drag_set_icon_default(context);
 769 }
 770
 771 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
 772                                     MimeView *mimeview)
 773 {
 774         GtkCList *clist = GTK_CLIST(widget);
 775         gint row, column;
 776
 777         if (!event) return FALSE;
 778
 779         if (event->button == 2 || event->button == 3) {
 780                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
 781                                                   &row, &column))
 782                         return FALSE;
 783                 gtk_clist_unselect_all(clist);
 784                 gtk_clist_select_row(clist, row, column);
 785                 gtkut_clist_set_focus_row(clist, row);
 786         }
 787         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
 788
 789         return TRUE;
 790 }
 791
 792 static void part_button_pressed(MimeView *mimeview, GdkEventButton *event,
 793                                 MimeInfo *partinfo)
 794 {
 795         if (event->button == 2 ||
 796             (event->button == 1 && event->type == GDK_2BUTTON_PRESS)) {
 797                 /* call external program for image, audio or html */
 798                 mimeview_launch(mimeview);
 799         } else if (event->button == 3) {
 800                 if (partinfo && (partinfo->mime_type == MIME_TEXT ||
 801                                  partinfo->mime_type == MIME_TEXT_HTML ||
 802                                  partinfo->mime_type == MIME_TEXT_ENRICHED ||
 803                                  partinfo->mime_type == MIME_MESSAGE_RFC822 ||
 804                                  partinfo->mime_type == MIME_IMAGE ||
 805                                  partinfo->mime_type == MIME_MULTIPART))
 806                         menu_set_sensitive(mimeview->popupfactory,
 807                                            "/Display as text", FALSE);
 808                 else
 809                         menu_set_sensitive(mimeview->popupfactory,
 810                                            "/Display as text", TRUE);
 811                 if (partinfo &&
 812                     partinfo->mime_type == MIME_APPLICATION_OCTET_STREAM)
 813                         menu_set_sensitive(mimeview->popupfactory,
 814                                            "/Open", FALSE);
 815                 else
 816                         menu_set_sensitive(mimeview->popupfactory,
 817                                            "/Open", TRUE);
 818
 819 #if USE_GPGME
 820                 menu_set_sensitive(mimeview->popupfactory,
 821                                    "/Check signature",
 822                                    mimeview_is_signed(mimeview));
 823 #endif
 824
 825                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
 826                                NULL, NULL, NULL, NULL,
 827                                event->button, event->time);
 828         }
 829
 830 }
 831
 832
 833 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
 834 {
 835         mimeview_key_pressed(mimeview->ctree, event, mimeview);
 836 }
 837
 838 #define BREAK_ON_MODIFIER_KEY() \
 839         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
 840
 841 #define KEY_PRESS_EVENT_STOP() \
 842         if (gtk_signal_n_emissions_by_name \
 843                 (GTK_OBJECT(ctree), "key_press_event") > 0) { \
 844                 gtk_signal_emit_stop_by_name(GTK_OBJECT(ctree), \
 845                                              "key_press_event"); \
 846         }
 847
 848 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
 849                                  MimeView *mimeview)
 850 {
 851         SummaryView *summaryview;
 852         GtkCTree *ctree = GTK_CTREE(widget);
 853         GtkCTreeNode *node;
 854
 855         if (!event) return FALSE;
 856         if (!mimeview->opened) return FALSE;
 857
 858         switch (event->keyval) {
 859         case GDK_space:
 860                 if (textview_scroll_page(mimeview->textview, FALSE))
 861                         return TRUE;
 862
 863                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
 864                 if (node) {
 865                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
 866                         gtk_sctree_select(GTK_SCTREE(ctree), node);
 867                         return TRUE;
 868                 }
 869                 break;
 870         case GDK_BackSpace:
 871                 textview_scroll_page(mimeview->textview, TRUE);
 872                 return TRUE;
 873         case GDK_Return:
 874                 textview_scroll_one_line(mimeview->textview,
 875                                          (event->state & GDK_MOD1_MASK) != 0);
 876                 return TRUE;
 877         case GDK_n:
 878         case GDK_N:
 879                 BREAK_ON_MODIFIER_KEY();
 880                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
 881                 KEY_PRESS_EVENT_STOP();
 882
 883                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 884                                         GTK_SCROLL_STEP_FORWARD, 0.0);
 885                 return TRUE;
 886         case GDK_p:
 887         case GDK_P:
 888                 BREAK_ON_MODIFIER_KEY();
 889                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
 890                 KEY_PRESS_EVENT_STOP();
 891
 892                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 893                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
 894                 return TRUE;
 895         case GDK_y:
 896                 BREAK_ON_MODIFIER_KEY();
 897                 KEY_PRESS_EVENT_STOP();
 898                 mimeview_save_as(mimeview);
 899                 return TRUE;
 900         case GDK_t:
 901                 BREAK_ON_MODIFIER_KEY();
 902                 KEY_PRESS_EVENT_STOP();
 903                 mimeview_display_as_text(mimeview);
 904                 return TRUE;
 905         case GDK_l:
 906                 BREAK_ON_MODIFIER_KEY();
 907                 KEY_PRESS_EVENT_STOP();
 908                 mimeview_launch(mimeview);
 909                 return TRUE;
 910         default:
 911                 break;
 912         }
 913
 914         if (!mimeview->messageview->mainwin) return FALSE;
 915         summaryview = mimeview->messageview->mainwin->summaryview;
 916         summary_pass_key_press_event(summaryview, event);
 917         return TRUE;
 918 }
 919
 920 static void mimeview_drag_data_get(GtkWidget        *widget,
 921                                    GdkDragContext   *drag_context,
 922                                    GtkSelectionData *selection_data,
 923                                    guint             info,
 924                                    guint             time,
 925                                    MimeView         *mimeview)
 926 {
 927         gchar *filename, *uriname;
 928         MimeInfo *partinfo;
 929
 930         if (!mimeview->opened) return;
 931         if (!mimeview->file) return;
 932
 933         partinfo = mimeview_get_selected_part(mimeview);
 934         if (!partinfo) return;
 935         if (!partinfo->filename && !partinfo->name) return;
 936
 937         filename = partinfo->filename ? partinfo->filename : partinfo->name;
 938         filename = g_basename(filename);
 939         if (*filename == '\0') return;
 940
 941         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
 942                                filename, NULL);
 943
 944         if (procmime_get_part(filename, mimeview->file, partinfo) < 0)
 945                 alertpanel_error
 946                         (_("Can't save the part of multipart message."));
 947
 948         uriname = g_strconcat("file:/", filename, NULL);
 949         gtk_selection_data_set(selection_data, selection_data->target, 8,
 950                                uriname, strlen(uriname));
 951
 952         g_free(uriname);
 953         g_free(filename);
 954 }
 955
 956 static void mimeview_save_all(MimeView *mimeview)
 957 {
 958         gchar *dirname;
 959         gchar *defname = NULL;
 960         MimeInfo *partinfo;
 961         MimeInfo *attachment;
 962         gchar buf[1024];
 963
 964         if (!mimeview->opened) return;
 965         if (!mimeview->file) return;
 966
 967         partinfo = mimeview_get_selected_part(mimeview);
 968         g_return_if_fail(partinfo != NULL);
 969
 970         dirname = filesel_select_file(_("Save as"), defname);
 971         if (!dirname) return;
 972
 973         /* return to first children */
 974         if (!partinfo->parent->children) return;  /* multipart container? */
 975         attachment = partinfo->parent->children->next;
 976         /* for each attachment, extract it in the selected dir. */
 977         while (attachment != NULL) {
 978                 static guint subst_cnt = 1;
 979                 gchar *attachdir;
 980                 gchar *attachname = g_strdup(get_part_name(attachment));
 981                 AlertValue aval = G_ALERTDEFAULT;
 982                 gchar *res;
 983
 984                 if (!attachname || !strlen(attachname))
 985                         attachname = g_strdup_printf("noname.%d",subst_cnt++);
 986                 subst_chars(attachname, ":?*&|<>\t\r\n", '_');
 987                 g_snprintf(buf, sizeof(buf), "%s%s",
 988                            dirname,
 989                            (attachname[0] == G_DIR_SEPARATOR)
 990                            ? &attachname[1]
 991                            : attachname);
 992                 subst_chars(buf, "/\\", G_DIR_SEPARATOR);
 993                 attachdir = g_dirname(buf);
 994                 make_dir_hier(attachdir);
 995                 g_free(attachdir);
 996
 997                 if (is_file_exist(buf)) {
 998                         res = g_strdup_printf(_("Overwrite existing file '%s'?"),
 999                                               attachname);
1000                         aval = alertpanel(_("Overwrite"), res, _("OK"),
1001                                           _("Cancel"), NULL);
1002                         g_free(res);
1003                 }
1004                 g_free(attachname);
1005
1006                 if ((G_ALERTDEFAULT != aval) || (procmime_get_part(buf, mimeview->file, attachment) < 0))
1007                         alertpanel_error(_("Can't save the part of multipart message."));
1008                 attachment = attachment->next;
1009         }
1010 }
1011
1012 static void mimeview_display_as_text(MimeView *mimeview)
1013 {
1014         MimeInfo *partinfo;
1015
1016         if (!mimeview->opened) return;
1017
1018         partinfo = mimeview_get_selected_part(mimeview);
1019         g_return_if_fail(partinfo != NULL);
1020         mimeview_show_message_part(mimeview, partinfo);
1021 }
1022
1023 static void mimeview_save_as(MimeView *mimeview)
1024 {
1025         gchar *filename;
1026         gchar *defname = NULL;
1027         MimeInfo *partinfo;
1028         gchar *res;
1029
1030         if (!mimeview->opened) return;
1031         if (!mimeview->file) return;
1032
1033         partinfo = mimeview_get_selected_part(mimeview);
1034         g_return_if_fail(partinfo != NULL);
1035
1036         if (partinfo->filename)
1037                 defname = partinfo->filename;
1038         else if (partinfo->name) {
1039                 Xstrdup_a(defname, partinfo->name, return);
1040                 subst_for_filename(defname);
1041         }
1042
1043         filename = filesel_select_file(_("Save as"), defname);
1044         if (!filename) return;
1045         if (is_file_exist(filename)) {
1046                 AlertValue aval;
1047                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1048                                       filename);
1049                 aval = alertpanel(_("Overwrite"), res, _("OK"),
1050                                   _("Cancel"), NULL);
1051                 g_free(res);
1052                 if (G_ALERTDEFAULT != aval) return;
1053         }
1054
1055         if (procmime_get_part(filename, mimeview->file, partinfo) < 0)
1056                 alertpanel_error
1057                         (_("Can't save the part of multipart message."));
1058 }
1059
1060 static void mimeview_launch(MimeView *mimeview)
1061 {
1062         MimeInfo *partinfo;
1063         gchar *filename;
1064
1065         if (!mimeview->opened) return;
1066         if (!mimeview->file) return;
1067
1068         partinfo = mimeview_get_selected_part(mimeview);
1069         g_return_if_fail(partinfo != NULL);
1070
1071         filename = procmime_get_tmp_file_name(partinfo);
1072
1073         if (procmime_get_part(filename, mimeview->file, partinfo) < 0)
1074                 alertpanel_error
1075                         (_("Can't save the part of multipart message."));
1076         else
1077                 mimeview_view_file(filename, partinfo, NULL);
1078
1079         g_free(filename);
1080 }
1081
1082 static void mimeview_open_with(MimeView *mimeview)
1083 {
1084         MimeInfo *partinfo;
1085         gchar *filename;
1086         gchar *cmd;
1087
1088         if (!mimeview->opened) return;
1089         if (!mimeview->file) return;
1090
1091         partinfo = mimeview_get_selected_part(mimeview);
1092         g_return_if_fail(partinfo != NULL);
1093
1094         filename = procmime_get_tmp_file_name(partinfo);
1095
1096         if (procmime_get_part(filename, mimeview->file, partinfo) < 0) {
1097                 alertpanel_error
1098                         (_("Can't save the part of multipart message."));
1099                 g_free(filename);
1100                 return;
1101         }
1102
1103         if (!prefs_common.mime_open_cmd_history)
1104                 prefs_common.mime_open_cmd_history =
1105                         add_history(NULL, prefs_common.mime_open_cmd);
1106
1107         cmd = input_dialog_combo
1108                 (_("Open with"),
1109                  _("Enter the command line to open file:\n"
1110                    "(`%s' will be replaced with file name)"),
1111                  prefs_common.mime_open_cmd,
1112                  prefs_common.mime_open_cmd_history,
1113                  TRUE);
1114         if (cmd) {
1115                 mimeview_view_file(filename, partinfo, cmd);
1116                 g_free(prefs_common.mime_open_cmd);
1117                 prefs_common.mime_open_cmd = cmd;
1118                 prefs_common.mime_open_cmd_history =
1119                         add_history(prefs_common.mime_open_cmd_history, cmd);
1120         }
1121
1122         g_free(filename);
1123 }
1124
1125 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1126                                const gchar *cmdline)
1127 {
1128         static gchar *default_image_cmdline = "display '%s'";
1129         static gchar *default_audio_cmdline = "play '%s'";
1130         static gchar *default_html_cmdline = DEFAULT_BROWSER_CMD;
1131         static gchar *mime_cmdline = "metamail -d -b -x -c %s '%s'";
1132         gchar buf[1024];
1133         gchar m_buf[1024];
1134         const gchar *cmd;
1135         const gchar *def_cmd;
1136         const gchar *p;
1137
1138         if (cmdline) {
1139                 cmd = cmdline;
1140                 def_cmd = NULL;
1141         } else if (MIME_APPLICATION_OCTET_STREAM == partinfo->mime_type) {
1142                 return;
1143         } else if (MIME_IMAGE == partinfo->mime_type) {
1144                 cmd = prefs_common.mime_image_viewer;
1145                 def_cmd = default_image_cmdline;
1146         } else if (MIME_AUDIO == partinfo->mime_type) {
1147                 cmd = prefs_common.mime_audio_player;
1148                 def_cmd = default_audio_cmdline;
1149         } else if (MIME_TEXT_HTML == partinfo->mime_type) {
1150                 cmd = prefs_common.uri_cmd;
1151                 def_cmd = default_html_cmdline;
1152         } else {
1153                 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
1154                            partinfo->content_type, "%s");
1155                 cmd = m_buf;
1156                 def_cmd = NULL;
1157         }
1158
1159         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
1160             !strchr(p + 2, '%'))
1161                 g_snprintf(buf, sizeof(buf), cmd, filename);
1162         else {
1163                 if (cmd)
1164                         g_warning("MIME viewer command line is invalid: `%s'", cmd);
1165                 if (def_cmd)
1166                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
1167                 else
1168                         return;
1169         }
1170
1171         execute_command_line(buf, TRUE);
1172 }
1173
1174 #if USE_GPGME
1175 static void update_node_name(GtkCTree *ctree, GtkCTreeNode *node,
1176                              gpointer data)
1177 {
1178         MimeInfo *partinfo;
1179         gchar *part_name;
1180
1181         partinfo = gtk_ctree_node_get_row_data(ctree, node);
1182         g_return_if_fail(partinfo != NULL);
1183
1184         part_name = get_part_name(partinfo);
1185         gtk_ctree_node_set_text(ctree, node, COL_NAME, part_name);
1186 }
1187
1188 static void mimeview_update_names(MimeView *mimeview)
1189 {
1190         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
1191
1192         gtk_ctree_pre_recursive(ctree, NULL, update_node_name, NULL);
1193 }
1194
1195 static void mimeview_update_signature_info(MimeView *mimeview)
1196 {
1197         MimeInfo *partinfo;
1198
1199         if (!mimeview) return;
1200         if (!mimeview->opened) return;
1201
1202         partinfo = mimeview_get_selected_part(mimeview);
1203         if (!partinfo) return;
1204
1205         if (g_strcasecmp(partinfo->content_type,
1206                          "application/pgp-signature") == 0) {
1207                 mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1208                 textview_show_signature_part(mimeview->textview, partinfo);
1209         }
1210 }
1211
1212 void mimeview_check_signature(MimeView *mimeview)
1213 {
1214         MimeInfo *mimeinfo;
1215         FILE *fp;
1216
1217         g_return_if_fail (mimeview_is_signed(mimeview));
1218         g_return_if_fail (gpg_started);
1219
1220         mimeinfo = gtk_ctree_node_get_row_data
1221                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
1222         g_return_if_fail(mimeinfo != NULL);
1223         g_return_if_fail(mimeview->file != NULL);
1224
1225         while (mimeinfo->parent)
1226                 mimeinfo = mimeinfo->parent;
1227
1228         if ((fp = fopen(mimeview->file, "rb")) == NULL) {
1229                 FILE_OP_ERROR(mimeview->file, "fopen");
1230                 return;
1231         }
1232
1233         rfc2015_check_signature(mimeinfo, fp);
1234         fclose(fp);
1235
1236         mimeview_update_names(mimeview);
1237         mimeview_update_signature_info(mimeview);
1238
1239         textview_show_message(mimeview->messageview->textview, mimeinfo,
1240                               mimeview->file);
1241
1242         mimeview_update(mimeview);
1243 }
1244 #endif /* USE_GPGME */
1245
1246 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1247 {
1248         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1249 }
1250
1251 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1252 {
1253         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1254 }
1255
1256 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1257 {
1258         GSList *mimeview_list, *viewer_list;
1259
1260         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1261                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1262
1263                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1264                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1265                         mimeview->mimeviewer = NULL;
1266                 }
1267
1268                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1269                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1270
1271                         mimeviewer->destroy_viewer(mimeviewer);
1272                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1273                 }
1274         }
1275
1276         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1277 }
1278
1279 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1280 {
1281         gint num;
1282         MimeInfo *partinfo;
1283         GtkCTreeNode *node;
1284         num = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "icon_number"));
1285         partinfo = gtk_object_get_data(GTK_OBJECT(button), "partinfo");
1286         if (event->button == 1) {
1287                 if (num == 1 && (partinfo->mime_type == MIME_TEXT ||
1288                                  partinfo->mime_type == MIME_TEXT_HTML))  {
1289                         gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->notebook), 0);
1290                         /* don't set the ctree, as it will unload the plugin, and
1291                          * we want to be able to switch quickly between the text
1292                          * part and the attachment */
1293                 } else {
1294                         gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->notebook), 1);
1295                         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1296                         if (node)
1297                                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1298                 }
1299         }
1300         part_button_pressed(mimeview, event, partinfo);
1301         return TRUE;
1302 }
1303
1304 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
1305 {
1306         GtkWidget *pixmap;
1307         GtkWidget *vbox;
1308         GtkWidget *button;
1309         GtkWidget *sep;
1310         gchar *tip;
1311         gchar *desc = NULL;
1312         gint width;
1313         StockPixmap stockp;
1314
1315         vbox = mimeview->icon_vbox;
1316         mimeview->icon_count++;
1317         if (mimeview->icon_count > 1) {
1318                 sep = gtk_hseparator_new();
1319                 gtk_widget_show(sep);
1320                 gtk_widget_set_usize(sep, ICONBOX_DEFAULT_WIDTH, -1);
1321                 gtk_box_pack_start(GTK_BOX(vbox), sep, FALSE, FALSE, 3);
1322         }
1323         button = gtk_event_box_new();
1324         gtk_object_set_data(GTK_OBJECT(button), "icon_number",
1325                 GINT_TO_POINTER(mimeview->icon_count));
1326         gtk_object_set_data(GTK_OBJECT(button), "partinfo",
1327                 mimeinfo);
1328
1329         switch (mimeinfo->mime_type) {
1330
1331         case MIME_TEXT:
1332         case MIME_MESSAGE_RFC822:
1333                 stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
1334                 break;
1335         case MIME_TEXT_HTML:
1336                 stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
1337                 break;
1338         case MIME_APPLICATION:
1339 #ifdef USE_GPGME
1340                 if (mimeinfo->content_type
1341                         &&  g_strcasecmp(mimeinfo->content_type,
1342                                          "application/pgp-signature")  == 0) {
1343                         if (mimeinfo->sigstatus_full) {
1344                                 desc = mimeinfo->sigstatus;
1345                                 if (mimeinfo->sig_ok)
1346                                         stockp = STOCK_PIXMAP_MIME_GPG_PASSED;
1347                                 else
1348                                         stockp = STOCK_PIXMAP_MIME_GPG_FAILED;
1349                         } else
1350                                 stockp = STOCK_PIXMAP_MIME_GPG_SIGNED;
1351                 } else
1352 #endif
1353                         stockp = STOCK_PIXMAP_MIME_APPLICATION;
1354                 break;
1355         case MIME_APPLICATION_OCTET_STREAM:
1356                 stockp = STOCK_PIXMAP_MIME_APPLICATION_OCTET_STREAM;
1357                 break;
1358         case MIME_IMAGE:
1359                 stockp = STOCK_PIXMAP_MIME_IMAGE;
1360                 break;
1361         case MIME_AUDIO:
1362                 stockp = STOCK_PIXMAP_MIME_AUDIO;
1363                 break;
1364         case MIME_TEXT_ENRICHED:
1365                 stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
1366                 break;
1367         default:
1368                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
1369                 break;
1370         }
1371
1372         pixmap = stock_pixmap_widget(mimeview->mainwin->window, stockp);
1373         gtk_container_add(GTK_CONTAINER(button), pixmap);
1374
1375         width = MAX(ICONBOX_DEFAULT_WIDTH, pixmap->requisition.width);
1376         if (width > mimeview->icon_mainbox->requisition.width) {
1377                 gtk_widget_set_usize(mimeview->icon_mainbox,
1378                                      width, -1);
1379         }
1380         if (!desc) {
1381                 if (prefs_common.attach_desc)
1382                         desc = get_part_description(mimeinfo);
1383                 else
1384                         desc = get_part_name(mimeinfo);
1385         }
1386         if (desc && *desc)
1387                 tip = g_strdup_printf("%s\n%s\n%s", desc, mimeinfo->content_type,
1388                                 to_human_readable(mimeinfo->size));
1389         else
1390                 tip = g_strdup_printf("%s\n%s", mimeinfo->content_type,
1391                                 to_human_readable(mimeinfo->size));
1392
1393         gtk_tooltips_set_tip(mimeview->tooltips, button, tip, NULL);
1394         g_free(tip);
1395         gtk_widget_show_all(button);
1396         gtk_signal_connect(GTK_OBJECT(button), "button_press_event",
1397                            GTK_SIGNAL_FUNC(icon_clicked_cb), mimeview);
1398         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
1399
1400 }
1401
1402 static void icon_list_clear (MimeView *mimeview)
1403 {
1404         GList     *child;
1405         GtkAdjustment *adj;
1406
1407         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1408         for (; child != NULL; child = g_list_next(child)) {
1409                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
1410                                        GTK_WIDGET(child->data));
1411         }
1412         mimeview->icon_count = 0;
1413         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1414         adj->value = 0;
1415         gtk_adjustment_value_changed(adj);
1416         gtk_signal_handler_block_by_func(GTK_OBJECT(mimeview->icon_mainbox),
1417                 GTK_SIGNAL_FUNC(icon_scroll_size_allocate_cb), mimeview);
1418         gtk_widget_set_usize(mimeview->icon_mainbox, ICONBOX_DEFAULT_WIDTH, -1);
1419         gtk_signal_handler_unblock_by_func(GTK_OBJECT(mimeview->icon_mainbox),
1420                 GTK_SIGNAL_FUNC(icon_scroll_size_allocate_cb), mimeview);
1421
1422 }
1423
1424 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
1425                                         GtkAllocation *size, MimeView *mimeview)
1426 {
1427         GtkAllocation *mainbox_size;
1428         GtkAllocation *vbox_size;
1429         GtkAllocation *layout_size;
1430         GtkAdjustment *adj;
1431
1432         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1433
1434         mainbox_size = &mimeview->icon_mainbox->allocation;
1435         vbox_size = &mimeview->icon_vbox->allocation;
1436         layout_size = &mimeview->icon_scroll->allocation;
1437
1438         /* centralise the vbox */
1439         gtk_layout_move(GTK_LAYOUT(mimeview->icon_scroll), mimeview->icon_vbox,
1440                         (mainbox_size->width - vbox_size->width)/2, 0);
1441
1442         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
1443                             GTK_LAYOUT(mimeview->icon_scroll)->width,
1444                             MAX(vbox_size->height, layout_size->height));
1445         adj->step_increment = 5;
1446 }
1447
1448 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
1449 {
1450         g_return_if_fail(mimeinfo != NULL);
1451
1452         if (mimeinfo->children)
1453                 mimeinfo = mimeinfo->children;
1454
1455         while (mimeinfo != NULL) {
1456                 if (mimeinfo->children)
1457                         icon_list_create(mimeview, mimeinfo);
1458                 else if (mimeinfo->sub &&
1459                          mimeinfo->sub->mime_type != MIME_TEXT &&
1460                          mimeinfo->sub->mime_type != MIME_TEXT_HTML)
1461                         icon_list_create(mimeview, mimeinfo->sub);
1462                 else
1463                         icon_list_append_icon(mimeview, mimeinfo);
1464                 mimeinfo = mimeinfo->next;
1465         }
1466 }
1467
1468 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
1469 {
1470         GtkWidget *paned = mimeview->paned;
1471         gtk_widget_ref(button);
1472
1473         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1474                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
1475                                         GTK_SHADOW_NONE);
1476                 gtkut_container_remove(GTK_CONTAINER(paned),
1477                                        mimeview->icon_mainbox);
1478                 gtk_paned_pack2(GTK_PANED(paned),
1479                                 mimeview->ctree_mainbox,
1480                                 FALSE, TRUE);
1481                 gtk_paned_set_gutter_size(GTK_PANED(paned), -1);
1482                 gtk_widget_set_usize(mimeview->ctree_mainbox, mimeview->oldsize, -1);
1483                 gtk_paned_set_position(GTK_PANED(paned),  paned->allocation.width
1484                                        - mimeview->oldsize
1485                                        - GTK_PANED (paned)->gutter_size);
1486
1487                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
1488                                         button);
1489                 gtk_box_pack_start(GTK_BOX(mimeview->ctree_mainbox),
1490                                    button, FALSE, FALSE, 0);
1491                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->notebook), 1);
1492         } else {
1493                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
1494                               GTK_SHADOW_NONE);
1495                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.width;
1496                 gtkut_container_remove(GTK_CONTAINER(paned),
1497                                        mimeview->ctree_mainbox);
1498                 gtk_paned_pack2(GTK_PANED(paned), mimeview->icon_mainbox,
1499                                 FALSE, FALSE);
1500                 gtk_paned_set_gutter_size(GTK_PANED(paned), 0);
1501                 gtk_paned_set_position(GTK_PANED(paned), -1);
1502
1503                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
1504                                         button);
1505                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
1506                                    button, FALSE, FALSE, 0);
1507         }
1508
1509         gtk_widget_unref(button);
1510         gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
1511
1512 }
1513
1514 void mimeview_update (MimeView *mimeview) {
1515         if (mimeview && mimeview->mimeinfo) {
1516                 icon_list_clear(mimeview);
1517                 icon_list_create(mimeview, mimeview->mimeinfo);
1518         }
1519 }