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/gtkhbox.h>
  33 #include <gtk/gtkvpaned.h>
  34 #include <gtk/gtktext.h>
  35 #include <gtk/gtksignal.h>
  36 #include <gtk/gtkmenu.h>
  37 #include <gtk/gtkdnd.h>
  38 #include <gtk/gtkselection.h>
  39 #include <gtk/gtktooltips.h>
  40 #include <gtk/gtkcontainer.h>
  41 #include <gtk/gtkbutton.h>
  42 #include <stdio.h>
  43
  44 #ifndef HAVE_APACHE_FNMATCH
  45 /* kludge: apache's fnmatch clashes with <regex.h>, don't include
  46  * fnmatch.h */
  47 #include <fnmatch.h>
  48 #endif
  49
  50 #include "intl.h"
  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 "rfc2015.h"
  64 #include "stock_pixmap.h"
  65 #include "gtk/gtkvscrollbutton.h"
  66
  67
  68 typedef enum
  69 {
  70         COL_MIMETYPE = 0,
  71         COL_SIZE     = 1,
  72         COL_NAME     = 2
  73 } MimeViewColumnPos;
  74
  75 #define N_MIMEVIEW_COLS 3
  76
  77 static void mimeview_set_multipart_tree         (MimeView       *mimeview,
  78                                                  MimeInfo       *mimeinfo,
  79                                                  GtkCTreeNode   *parent);
  80 static GtkCTreeNode *mimeview_append_part       (MimeView       *mimeview,
  81                                                  MimeInfo       *partinfo,
  82                                                  GtkCTreeNode   *parent);
  83 static void mimeview_show_message_part          (MimeView       *mimeview,
  84                                                  MimeInfo       *partinfo);
  85 static void mimeview_change_view_type           (MimeView       *mimeview,
  86                                                  MimeViewType    type);
  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_selected               (MimeView       *mimeview,
 122                                          gint            num,
 123                                          MimeInfo       *partinfo);
 124 static gint icon_key_pressed            (GtkWidget      *button,
 125                                          GdkEventKey    *event,
 126                                          MimeView       *mimeview);
 127 static void toggle_icon                 (GtkToggleButton *button,
 128                                          MimeView       *mimeview);
 129 static void icon_list_append_icon       (MimeView       *mimeview,
 130                                          MimeInfo       *mimeinfo);
 131 static void icon_list_create            (MimeView       *mimeview,
 132                                          MimeInfo       *mimeinfo);
 133 static void icon_list_clear             (MimeView       *mimeview);
 134 static void icon_list_toggle_by_mime_info (MimeView     *mimeview,
 135                                            MimeInfo     *mimeinfo);
 136 static gboolean icon_list_select_by_number(MimeView     *mimeview,
 137                                            gint          number);
 138 static void mime_toggle_button_cb       (GtkWidget      *button,
 139                                          MimeView       *mimeview);
 140 static void part_button_pressed         (MimeView       *mimeview,
 141                                          GdkEventButton *event,
 142                                          MimeInfo       *partinfo);
 143 static void icon_scroll_size_allocate_cb(GtkWidget      *widget,
 144                                          GtkAllocation  *layout_size,
 145                                          MimeView       *mimeview);
 146
 147 static GtkItemFactoryEntry mimeview_popup_entries[] =
 148 {
 149         {N_("/_Open"),            NULL, mimeview_launch,          0, NULL},
 150         {N_("/Open _with..."),    NULL, mimeview_open_with,       0, NULL},
 151         {N_("/_Display as text"), NULL, mimeview_display_as_text, 0, NULL},
 152         {N_("/_Save as..."),      NULL, mimeview_save_as,         0, NULL},
 153         {N_("/Save _all..."),     NULL, mimeview_save_all,        0, NULL},
 154 };
 155
 156 static GtkTargetEntry mimeview_mime_types[] =
 157 {
 158         {"text/uri-list", 0, 0}
 159 };
 160
 161 GSList *mimeviewer_factories;
 162 GSList *mimeviews;
 163
 164 MimeView *mimeview_create(MainWindow *mainwin)
 165 {
 166         MimeView *mimeview;
 167
 168         GtkWidget *paned;
 169         GtkWidget *scrolledwin;
 170         GtkWidget *ctree;
 171         GtkWidget *mime_notebook;
 172         GtkWidget *popupmenu;
 173         GtkWidget *ctree_mainbox;
 174         GtkWidget *vbox;
 175         GtkWidget *mime_toggle;
 176         GtkWidget *icon_mainbox;
 177         GtkWidget *icon_scroll;
 178         GtkWidget *icon_vbox;
 179         GtkWidget *arrow;
 180         GtkWidget *scrollbutton;
 181         GtkWidget *hbox;
 182         GtkTooltips *tooltips;
 183         GtkItemFactory *popupfactory;
 184         NoticeView *siginfoview;
 185         gchar *titles[N_MIMEVIEW_COLS];
 186         gint n_entries;
 187         gint i;
 188
 189         debug_print("Creating MIME view...\n");
 190         mimeview = g_new0(MimeView, 1);
 191
 192         titles[COL_MIMETYPE] = _("MIME Type");
 193         titles[COL_SIZE]     = _("Size");
 194         titles[COL_NAME]     = _("Name");
 195
 196         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 197         gtk_widget_show(scrolledwin);
 198         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 199                                        GTK_POLICY_AUTOMATIC,
 200                                        GTK_POLICY_ALWAYS);
 201
 202         ctree = gtk_sctree_new_with_titles(N_MIMEVIEW_COLS, 0, titles);
 203         gtk_widget_show(ctree);
 204         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 205         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
 206         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_SIZE,
 207                                            GTK_JUSTIFY_RIGHT);
 208         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_MIMETYPE, 240);
 209         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_SIZE, 90);
 210         for (i = 0; i < N_MIMEVIEW_COLS; i++)
 211                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 212                                        GTK_CAN_FOCUS);
 213         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 214
 215         gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
 216                            GTK_SIGNAL_FUNC(mimeview_selected), mimeview);
 217         gtk_signal_connect(GTK_OBJECT(ctree), "button_press_event",
 218                            GTK_SIGNAL_FUNC(mimeview_button_pressed), mimeview);
 219         gtk_signal_connect(GTK_OBJECT(ctree), "key_press_event",
 220                            GTK_SIGNAL_FUNC(mimeview_key_pressed), mimeview);
 221         gtk_signal_connect(GTK_OBJECT (ctree),"start_drag",
 222                            GTK_SIGNAL_FUNC (mimeview_start_drag), mimeview);
 223         gtk_signal_connect(GTK_OBJECT(ctree), "drag_data_get",
 224                            GTK_SIGNAL_FUNC(mimeview_drag_data_get), mimeview);
 225
 226         mime_notebook = gtk_notebook_new();
 227         gtk_widget_show(mime_notebook);
 228         GTK_WIDGET_UNSET_FLAGS(mime_notebook, GTK_CAN_FOCUS);
 229         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(mime_notebook), FALSE);
 230         gtk_notebook_set_show_border(GTK_NOTEBOOK(mime_notebook), FALSE);
 231
 232         icon_vbox = gtk_vbox_new(FALSE, 2);
 233         gtk_widget_show(icon_vbox);
 234         icon_scroll = gtk_layout_new(NULL, NULL);
 235         gtk_widget_show(icon_scroll);
 236         gtk_layout_put(GTK_LAYOUT(icon_scroll), icon_vbox, 0, 0);
 237         scrollbutton = gtk_vscrollbutton_new(gtk_layout_get_vadjustment(GTK_LAYOUT(icon_scroll)));
 238         gtk_widget_show(scrollbutton);
 239
 240         mime_toggle = gtk_toggle_button_new();
 241         gtk_widget_show(mime_toggle);
 242         arrow = gtk_arrow_new(GTK_ARROW_LEFT, GTK_SHADOW_NONE);
 243         gtk_widget_show(arrow);
 244         gtk_container_add(GTK_CONTAINER(mime_toggle), arrow);
 245         gtk_signal_connect(GTK_OBJECT(mime_toggle), "toggled",
 246                            GTK_SIGNAL_FUNC(mime_toggle_button_cb), mimeview);
 247
 248         icon_mainbox = gtk_vbox_new(FALSE, 0);
 249         gtk_widget_show(icon_mainbox);
 250         gtk_box_pack_start(GTK_BOX(icon_mainbox), mime_toggle, FALSE, FALSE, 0);
 251         gtk_box_pack_start(GTK_BOX(icon_mainbox), icon_scroll, TRUE, TRUE, 3);
 252         gtk_box_pack_end(GTK_BOX(icon_mainbox), scrollbutton, FALSE, FALSE, 0);
 253         gtk_signal_connect(GTK_OBJECT(icon_mainbox), "size_allocate",
 254                         GTK_SIGNAL_FUNC(icon_scroll_size_allocate_cb), mimeview);
 255
 256         ctree_mainbox = gtk_hbox_new(FALSE, 0);
 257         gtk_box_pack_start(GTK_BOX(ctree_mainbox), scrolledwin, TRUE, TRUE, 0);
 258
 259         n_entries = sizeof(mimeview_popup_entries) /
 260                 sizeof(mimeview_popup_entries[0]);
 261         popupmenu = menu_create_items(mimeview_popup_entries, n_entries,
 262                                       "<MimeView>", &popupfactory, mimeview);
 263         tooltips = gtk_tooltips_new();
 264         gtk_tooltips_set_delay(tooltips, 0);
 265
 266         vbox = gtk_vbox_new(FALSE, 0);
 267         gtk_widget_show(vbox);
 268         siginfoview = noticeview_create(mainwin);
 269         noticeview_hide(siginfoview);
 270         gtk_box_pack_start(GTK_BOX(vbox), mime_notebook, TRUE, TRUE, 0);
 271         gtk_box_pack_end(GTK_BOX(vbox), GTK_WIDGET_PTR(siginfoview), FALSE, FALSE, 0);
 272
 273         paned = gtk_vpaned_new();
 274         gtk_widget_show(paned);
 275         gtk_paned_set_gutter_size(GTK_PANED(paned), 0);
 276         gtk_paned_pack1(GTK_PANED(paned), ctree_mainbox, FALSE, TRUE);
 277         gtk_paned_pack2(GTK_PANED(paned), vbox, TRUE, TRUE);
 278
 279         hbox = gtk_hbox_new(FALSE, 0);
 280         gtk_box_pack_start(GTK_BOX(hbox), paned, TRUE, TRUE, 0);
 281         gtk_box_pack_start(GTK_BOX(hbox), icon_mainbox, FALSE, FALSE, 0);
 282
 283         gtk_widget_show(hbox);
 284         gtk_widget_hide(ctree_mainbox);
 285
 286         mimeview->hbox          = hbox;
 287         mimeview->paned         = paned;
 288         mimeview->scrolledwin   = scrolledwin;
 289         mimeview->ctree         = ctree;
 290         mimeview->mime_notebook = mime_notebook;
 291         mimeview->popupmenu     = popupmenu;
 292         mimeview->popupfactory  = popupfactory;
 293         mimeview->type          = -1;
 294         mimeview->ctree_mainbox = ctree_mainbox;
 295         mimeview->icon_scroll   = icon_scroll;
 296         mimeview->icon_vbox     = icon_vbox;
 297         mimeview->icon_mainbox  = icon_mainbox;
 298         mimeview->icon_count    = 0;
 299         mimeview->mainwin       = mainwin;
 300         mimeview->tooltips      = tooltips;
 301         mimeview->oldsize       = 60;
 302         mimeview->mime_toggle   = mime_toggle;
 303         mimeview->siginfoview   = siginfoview;
 304
 305         mimeview->target_list   = gtk_target_list_new(mimeview_mime_types, 1);
 306
 307         mimeviews = g_slist_prepend(mimeviews, mimeview);
 308
 309         return mimeview;
 310 }
 311
 312 void mimeview_init(MimeView *mimeview)
 313 {
 314         textview_init(mimeview->textview);
 315
 316         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 317                 GTK_WIDGET_PTR(mimeview->textview));
 318 }
 319
 320 void mimeview_show_message(MimeView *mimeview, MimeInfo *mimeinfo,
 321                            const gchar *file)
 322 {
 323         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 324         GtkCTreeNode *node;
 325
 326         mimeview_clear(mimeview);
 327
 328         g_return_if_fail(file != NULL);
 329         g_return_if_fail(mimeinfo != NULL);
 330
 331         mimeview->mimeinfo = mimeinfo;
 332
 333         mimeview->file = g_strdup(file);
 334
 335         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree), mimeview_selected,
 336                                          mimeview);
 337
 338         mimeview_set_multipart_tree(mimeview, mimeinfo, NULL);
 339         icon_list_create(mimeview, mimeinfo);
 340
 341         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 342                                            mimeview_selected, mimeview);
 343
 344         node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 345         if (node) {
 346                 gtk_ctree_select(ctree, node);
 347                 icon_list_toggle_by_mime_info
 348                         (mimeview, gtk_ctree_node_get_row_data(ctree, node));
 349                 gtkut_ctree_set_focus_row(ctree, node);
 350         }
 351 }
 352
 353 void mimeview_destroy(MimeView *mimeview)
 354 {
 355         GSList *cur;
 356
 357         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 358                 MimeViewer *viewer = (MimeViewer *) cur->data;
 359                 gtk_container_remove(GTK_CONTAINER(mimeview->mime_notebook),
 360                         GTK_WIDGET(viewer->get_widget(viewer)));
 361                 viewer->destroy_viewer(viewer);
 362         }
 363         g_slist_free(mimeview->viewers);
 364         gtk_target_list_unref(mimeview->target_list);
 365
 366         procmime_mimeinfo_free_all(mimeview->mimeinfo);
 367         g_free(mimeview->file);
 368         g_free(mimeview);
 369
 370         mimeviews = g_slist_remove(mimeviews, mimeview);
 371
 372 }
 373
 374 MimeInfo *mimeview_get_selected_part(MimeView *mimeview)
 375 {
 376         return gtk_ctree_node_get_row_data
 377                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
 378 }
 379
 380 static void mimeview_set_multipart_tree(MimeView *mimeview,
 381                                         MimeInfo *mimeinfo,
 382                                         GtkCTreeNode *parent)
 383 {
 384         GtkCTreeNode *node;
 385
 386         g_return_if_fail(mimeinfo != NULL);
 387
 388         while (mimeinfo != NULL) {
 389                 node = mimeview_append_part(mimeview, mimeinfo, parent);
 390
 391                 if (mimeinfo->node->children)
 392                         mimeview_set_multipart_tree(mimeview, (MimeInfo *) mimeinfo->node->children->data, node);
 393                 mimeinfo = mimeinfo->node->next != NULL ? (MimeInfo *) mimeinfo->node->next->data : NULL;
 394         }
 395 }
 396
 397 static gchar *get_part_name(MimeInfo *partinfo)
 398 {
 399         gchar *name;
 400
 401         name = g_hash_table_lookup(partinfo->parameters, "name");
 402         if(name == NULL)
 403                 name = "";
 404
 405         return name;
 406 }
 407
 408 static gchar *get_part_description(MimeInfo *partinfo)
 409 {
 410         if (partinfo->description)
 411                 return partinfo->description;
 412         else if (g_hash_table_lookup(partinfo->parameters, "name") != NULL)
 413                 return g_hash_table_lookup(partinfo->parameters, "name");
 414         else
 415                 return "";
 416 }
 417
 418 static GtkCTreeNode *mimeview_append_part(MimeView *mimeview,
 419                                           MimeInfo *partinfo,
 420                                           GtkCTreeNode *parent)
 421 {
 422         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 423         GtkCTreeNode *node;
 424         static gchar content_type[64];
 425         gchar *str[N_MIMEVIEW_COLS];
 426
 427         if (partinfo->type != MIMETYPE_UNKNOWN && partinfo->subtype) {
 428                 g_snprintf(content_type, 64, "%s/%s", procmime_get_type_str(partinfo->type), partinfo->subtype);
 429         } else {
 430                 g_snprintf(content_type, 64, "UNKNOWN");
 431         }
 432
 433         str[COL_MIMETYPE] = content_type;
 434         str[COL_SIZE] = to_human_readable(partinfo->length);
 435         if (prefs_common.attach_desc)
 436                 str[COL_NAME] = get_part_description(partinfo);
 437         else
 438                 str[COL_NAME] = get_part_name(partinfo);
 439
 440         node = gtk_ctree_insert_node(ctree, parent, NULL, str, 0,
 441                                      NULL, NULL, NULL, NULL,
 442                                      FALSE, TRUE);
 443         gtk_ctree_node_set_row_data(ctree, node, partinfo);
 444
 445         return node;
 446 }
 447
 448 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
 449 {
 450         FILE *fp;
 451         const gchar *fname;
 452
 453         if (!partinfo) return;
 454
 455         fname = mimeview->file;
 456         if (!fname) return;
 457
 458         if ((fp = fopen(fname, "rb")) == NULL) {
 459                 FILE_OP_ERROR(fname, "fopen");
 460                 return;
 461         }
 462
 463         if (fseek(fp, partinfo->offset, SEEK_SET) < 0) {
 464                 FILE_OP_ERROR(mimeview->file, "fseek");
 465                 fclose(fp);
 466                 return;
 467         }
 468
 469         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 470         textview_show_part(mimeview->textview, partinfo, fp);
 471
 472         fclose(fp);
 473 }
 474
 475 static MimeViewer *get_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 476 {
 477         GSList *cur;
 478         MimeViewerFactory *factory = NULL;
 479         MimeViewer *viewer = NULL;
 480
 481 /*
 482  * FNM_CASEFOLD is a GNU extension
 483  * if its not defined copy the string to the stack and
 484  * convert the copy to lower case
 485  */
 486 #ifndef FNM_CASEFOLD
 487 #define FNM_CASEFOLD 0
 488         Xstrdup_a(content_type, content_type, return NULL);
 489         g_strdown((gchar *)content_type);
 490 #endif
 491
 492         for (cur = mimeviewer_factories; cur != NULL; cur = g_slist_next(cur)) {
 493                 MimeViewerFactory *curfactory = cur->data;
 494                 gint i = 0;
 495
 496                 while (curfactory->content_types[i] != NULL) {
 497                         debug_print("%s\n", curfactory->content_types[i]);
 498                         if(!fnmatch(curfactory->content_types[i], content_type, FNM_CASEFOLD)) {
 499                                 factory = curfactory;
 500                                 break;
 501                         }
 502                         i++;
 503                 }
 504                 if (factory != NULL)
 505                         break;
 506         }
 507         if (factory == NULL)
 508                 return NULL;
 509
 510         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 511                 MimeViewer *curviewer = cur->data;
 512
 513                 if (curviewer->factory == factory)
 514                         return curviewer;
 515         }
 516         viewer = factory->create_viewer();
 517         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 518                 GTK_WIDGET(viewer->get_widget(viewer)));
 519
 520         mimeview->viewers = g_slist_append(mimeview->viewers, viewer);
 521
 522         return viewer;
 523 }
 524
 525 static MimeViewer *get_viewer_for_mimeinfo(MimeView *mimeview, MimeInfo *partinfo)
 526 {
 527         gchar *content_type = NULL;
 528         MimeViewer *viewer = NULL;
 529
 530         if ((partinfo->type == MIMETYPE_APPLICATION) &&
 531             (g_strcasecmp(partinfo->subtype, "octet-stream")) &&
 532             (partinfo->name != NULL)) {
 533                 content_type = procmime_get_mime_type(partinfo->name);
 534         } else {
 535                 content_type = g_strdup_printf("%s/%s", procmime_get_type_str(partinfo->type), partinfo->subtype);
 536         }
 537
 538         if (content_type != NULL) {
 539                 viewer = get_viewer_for_content_type(mimeview, content_type);
 540                 g_free(content_type);
 541         }
 542
 543         return viewer;
 544 }
 545
 546 static gboolean mimeview_show_part(MimeView *mimeview, MimeInfo *partinfo)
 547 {
 548         MimeViewer *viewer;
 549
 550         viewer = get_viewer_for_mimeinfo(mimeview, partinfo);
 551         if (viewer == NULL) {
 552                 if (mimeview->mimeviewer != NULL)
 553                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 554                 mimeview->mimeviewer = NULL;
 555                 return FALSE;
 556         }
 557
 558         if (mimeview->mimeviewer != viewer) {
 559                 if (mimeview->mimeviewer != NULL)
 560                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 561                 mimeview->mimeviewer = viewer;
 562                 mimeview_change_view_type(mimeview, MIMEVIEW_VIEWER);
 563         }
 564         viewer->show_mimepart(viewer, mimeview->file, partinfo);
 565
 566         return TRUE;
 567 }
 568
 569 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
 570 {
 571         TextView  *textview  = mimeview->textview;
 572
 573         if ((mimeview->type != MIMEVIEW_VIEWER) &&
 574             (mimeview->type == type)) return;
 575
 576         switch (type) {
 577         case MIMEVIEW_TEXT:
 578                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 579                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 580                         GTK_WIDGET_PTR(textview)));
 581                 break;
 582         case MIMEVIEW_VIEWER:
 583                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 584                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 585                         GTK_WIDGET(mimeview->mimeviewer->get_widget(mimeview->mimeviewer))));
 586                 break;
 587         default:
 588                 return;
 589         }
 590
 591         mimeview->type = type;
 592 }
 593
 594 void mimeview_clear(MimeView *mimeview)
 595 {
 596         GtkCList *clist = GTK_CLIST(mimeview->ctree);
 597
 598         noticeview_hide(mimeview->siginfoview);
 599
 600         gtk_clist_clear(clist);
 601         textview_clear(mimeview->textview);
 602         if (mimeview->mimeviewer != NULL)
 603                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 604
 605         if (mimeview->mimeinfo != NULL)
 606                 procmime_mimeinfo_free_all(mimeview->mimeinfo);
 607         mimeview->mimeinfo = NULL;
 608
 609         mimeview->opened = NULL;
 610
 611         g_free(mimeview->file);
 612         mimeview->file = NULL;
 613
 614         icon_list_clear(mimeview);
 615 }
 616
 617 static void check_signature_cb(GtkWidget *widget, gpointer user_data);
 618
 619 static void update_signature_noticeview(MimeView *mimeview, MimeInfo *mimeinfo)
 620 {
 621         if (privacy_mimeinfo_is_signed(mimeinfo)) {
 622                 gchar *text = NULL, *button_text = NULL;
 623                 GtkSignalFunc func = NULL;
 624                 StockPixmap icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 625
 626                 switch (privacy_mimeinfo_get_sig_status(mimeinfo)) {
 627                 case SIGNATURE_UNCHECKED:
 628                         button_text = _("Check");
 629                         func = check_signature_cb;
 630                         icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 631                         break;
 632                 case SIGNATURE_OK:
 633                         icon = STOCK_PIXMAP_PRIVACY_PASSED;
 634                         break;
 635                 case SIGNATURE_WARN:
 636                         icon = STOCK_PIXMAP_PRIVACY_WARN;
 637                         break;
 638                 case SIGNATURE_INVALID:
 639                         icon = STOCK_PIXMAP_PRIVACY_FAILED;
 640                         break;
 641                 case SIGNATURE_CHECK_FAILED:
 642                         button_text = _("Check again");
 643                         func = check_signature_cb;
 644                         icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 645                 default:
 646                         break;
 647                 }
 648                 text = privacy_mimeinfo_sig_info_short(mimeinfo);
 649                 noticeview_set_text(mimeview->siginfoview, text);
 650                 g_free(text);
 651                 noticeview_set_button_text(mimeview->siginfoview, button_text);
 652                 noticeview_set_button_press_callback(
 653                         mimeview->siginfoview,
 654                         func,
 655                         (gpointer) mimeview);
 656                 noticeview_set_icon(mimeview->siginfoview, icon);
 657                 noticeview_show(mimeview->siginfoview);
 658         } else {
 659                 noticeview_hide(mimeview->siginfoview);
 660         }
 661 }
 662
 663 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
 664 {
 665         MimeView *mimeview = (MimeView *) user_data;
 666         MimeInfo *mimeinfo = mimeview_get_selected_part(mimeview);
 667
 668         privacy_mimeinfo_check_signature(mimeinfo);
 669         update_signature_noticeview(mimeview, mimeinfo);
 670 }
 671
 672 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 673                               MimeView *mimeview)
 674 {
 675         MimeInfo *partinfo;
 676
 677         if (mimeview->opened == node) return;
 678         mimeview->opened = node;
 679         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
 680
 681         partinfo = gtk_ctree_node_get_row_data(ctree, node);
 682         if (!partinfo) return;
 683
 684         /* ungrab the mouse event */
 685         if (GTK_WIDGET_HAS_GRAB(ctree)) {
 686                 gtk_grab_remove(GTK_WIDGET(ctree));
 687                 if (gdk_pointer_is_grabbed())
 688                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
 689         }
 690
 691         mimeview->textview->default_text = FALSE;
 692
 693         update_signature_noticeview(mimeview, partinfo);
 694
 695         if (!mimeview_show_part(mimeview, partinfo)) {
 696                 switch (partinfo->type) {
 697                 case MIMETYPE_TEXT:
 698                 case MIMETYPE_MESSAGE:
 699                 case MIMETYPE_MULTIPART:
 700                         mimeview_show_message_part(mimeview, partinfo);
 701
 702                         break;
 703                 default:
 704                         mimeview->textview->default_text = TRUE;
 705                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 706                         textview_show_mime_part(mimeview->textview, partinfo);
 707                         break;
 708                 }
 709         }
 710 }
 711
 712 static void mimeview_start_drag(GtkWidget *widget, gint button,
 713                                 GdkEvent *event, MimeView *mimeview)
 714 {
 715         GdkDragContext *context;
 716         MimeInfo *partinfo;
 717
 718         g_return_if_fail(mimeview != NULL);
 719
 720         partinfo = mimeview_get_selected_part(mimeview);
 721         if (partinfo->filename == NULL && partinfo->name == NULL) return;
 722
 723         context = gtk_drag_begin(widget, mimeview->target_list,
 724                                  GDK_ACTION_COPY, button, event);
 725         gtk_drag_set_icon_default(context);
 726 }
 727
 728 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
 729                                     MimeView *mimeview)
 730 {
 731         GtkCList *clist = GTK_CLIST(widget);
 732         gint row, column;
 733
 734         if (!event) return FALSE;
 735
 736         if (event->button == 2 || event->button == 3) {
 737                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
 738                                                   &row, &column))
 739                         return FALSE;
 740                 gtk_clist_unselect_all(clist);
 741                 gtk_clist_select_row(clist, row, column);
 742                 gtkut_clist_set_focus_row(clist, row);
 743         }
 744         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
 745
 746         return TRUE;
 747 }
 748
 749 static void part_button_pressed(MimeView *mimeview, GdkEventButton *event,
 750                                 MimeInfo *partinfo)
 751 {
 752         if (event->button == 2 ||
 753             (event->button == 1 && event->type == GDK_2BUTTON_PRESS)) {
 754                 /* call external program for image, audio or html */
 755                 mimeview_launch(mimeview);
 756         } else if (event->button == 3) {
 757                 if (partinfo && (partinfo->type == MIMETYPE_TEXT ||
 758                                  partinfo->type == MIMETYPE_MESSAGE ||
 759                                  partinfo->type == MIMETYPE_IMAGE ||
 760                                  partinfo->type == MIMETYPE_MULTIPART))
 761                         menu_set_sensitive(mimeview->popupfactory,
 762                                            "/Display as text", FALSE);
 763                 else
 764                         menu_set_sensitive(mimeview->popupfactory,
 765                                            "/Display as text", TRUE);
 766                 if (partinfo &&
 767                     partinfo->type == MIMETYPE_APPLICATION)
 768                         menu_set_sensitive(mimeview->popupfactory,
 769                                            "/Open", FALSE);
 770                 else
 771                         menu_set_sensitive(mimeview->popupfactory,
 772                                            "/Open", TRUE);
 773
 774                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
 775                                     "pop_partinfo", partinfo);
 776
 777                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
 778                                NULL, NULL, NULL, NULL,
 779                                event->button, event->time);
 780         }
 781 }
 782
 783
 784 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
 785 {
 786         mimeview_key_pressed(mimeview->ctree, event, mimeview);
 787 }
 788
 789 #define BREAK_ON_MODIFIER_KEY() \
 790         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
 791
 792 #define KEY_PRESS_EVENT_STOP() \
 793         if (gtk_signal_n_emissions_by_name \
 794                 (GTK_OBJECT(ctree), "key_press_event") > 0) { \
 795                 gtk_signal_emit_stop_by_name(GTK_OBJECT(ctree), \
 796                                              "key_press_event"); \
 797         }
 798
 799 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
 800                                  MimeView *mimeview)
 801 {
 802         SummaryView *summaryview;
 803         GtkCTree *ctree = GTK_CTREE(widget);
 804         GtkCTreeNode *node;
 805
 806         if (!event) return FALSE;
 807         if (!mimeview->opened) return FALSE;
 808
 809         switch (event->keyval) {
 810         case GDK_space:
 811                 if (textview_scroll_page(mimeview->textview, FALSE))
 812                         return TRUE;
 813
 814                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
 815                 if (node) {
 816                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
 817                         gtk_sctree_select(GTK_SCTREE(ctree), node);
 818                         return TRUE;
 819                 }
 820                 break;
 821         case GDK_BackSpace:
 822                 textview_scroll_page(mimeview->textview, TRUE);
 823                 return TRUE;
 824         case GDK_Return:
 825                 textview_scroll_one_line(mimeview->textview,
 826                                          (event->state & GDK_MOD1_MASK) != 0);
 827                 return TRUE;
 828         case GDK_n:
 829         case GDK_N:
 830                 BREAK_ON_MODIFIER_KEY();
 831                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
 832                 KEY_PRESS_EVENT_STOP();
 833
 834                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 835                                         GTK_SCROLL_STEP_FORWARD, 0.0);
 836                 return TRUE;
 837         case GDK_p:
 838         case GDK_P:
 839                 BREAK_ON_MODIFIER_KEY();
 840                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
 841                 KEY_PRESS_EVENT_STOP();
 842
 843                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 844                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
 845                 return TRUE;
 846         case GDK_y:
 847                 BREAK_ON_MODIFIER_KEY();
 848                 KEY_PRESS_EVENT_STOP();
 849                 mimeview_save_as(mimeview);
 850                 return TRUE;
 851         case GDK_t:
 852                 BREAK_ON_MODIFIER_KEY();
 853                 KEY_PRESS_EVENT_STOP();
 854                 mimeview_display_as_text(mimeview);
 855                 return TRUE;
 856         case GDK_l:
 857                 BREAK_ON_MODIFIER_KEY();
 858                 KEY_PRESS_EVENT_STOP();
 859                 mimeview_launch(mimeview);
 860                 return TRUE;
 861         default:
 862                 break;
 863         }
 864
 865         if (!mimeview->messageview->mainwin) return FALSE;
 866         summaryview = mimeview->messageview->mainwin->summaryview;
 867         summary_pass_key_press_event(summaryview, event);
 868         return TRUE;
 869 }
 870
 871 static void mimeview_drag_data_get(GtkWidget        *widget,
 872                                    GdkDragContext   *drag_context,
 873                                    GtkSelectionData *selection_data,
 874                                    guint             info,
 875                                    guint             time,
 876                                    MimeView         *mimeview)
 877 {
 878         gchar *filename, *uriname;
 879         MimeInfo *partinfo;
 880
 881         if (!mimeview->opened) return;
 882         if (!mimeview->file) return;
 883
 884         partinfo = mimeview_get_selected_part(mimeview);
 885         if (!partinfo) return;
 886         if (!partinfo->filename && !partinfo->name) return;
 887
 888         filename = partinfo->filename ? partinfo->filename : partinfo->name;
 889         filename = g_basename(filename);
 890         if (*filename == '\0') return;
 891
 892         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
 893                                filename, NULL);
 894
 895         if (procmime_get_part(filename, partinfo) < 0)
 896                 alertpanel_error
 897                         (_("Can't save the part of multipart message."));
 898
 899         uriname = g_strconcat("file:/", filename, NULL);
 900         gtk_selection_data_set(selection_data, selection_data->target, 8,
 901                                uriname, strlen(uriname));
 902
 903         g_free(uriname);
 904         g_free(filename);
 905 }
 906
 907 static void mimeview_save_all(MimeView *mimeview)
 908 {
 909         gchar *dirname;
 910         gchar *defname = NULL;
 911         MimeInfo *attachment;
 912         gchar buf[1024];
 913
 914         if (!mimeview->opened) return;
 915         if (!mimeview->file) return;
 916
 917         attachment = mimeview->mimeinfo;
 918         g_return_if_fail(attachment != NULL);
 919
 920         dirname = filesel_select_file(_("Save as"), defname);
 921         if (!dirname) return;
 922
 923         if (!is_dir_exist (dirname)) {
 924                 alertpanel_error(_("`%s' is not a directory."),
 925                                  dirname);
 926                 g_free (dirname);
 927                 return;
 928         }
 929
 930         { /* add a / after the dirname, in case the user didn't */
 931                 gchar *dirname_tmp = NULL;
 932                 int dirname_last_char = strlen (dirname) - 1;
 933
 934                 if (dirname[dirname_last_char] != G_DIR_SEPARATOR) {
 935                         dirname_tmp = g_strconcat (dirname, G_DIR_SEPARATOR_S, NULL);
 936                         g_free (dirname);
 937                         dirname = dirname_tmp;
 938                 }
 939         }
 940
 941         /* for each attachment, extract it in the selected dir. */
 942         while (attachment != NULL) {
 943                 if (attachment->type != MIMETYPE_MESSAGE &&
 944                     attachment->type != MIMETYPE_MULTIPART) {
 945                         static guint subst_cnt = 1;
 946                         gchar *attachdir;
 947                         gchar *attachname = g_strdup(get_part_name(attachment));
 948                         AlertValue aval = G_ALERTDEFAULT;
 949                         gchar *res;
 950
 951                         if (!attachname || !strlen(attachname))
 952                                 attachname = g_strdup_printf("noname.%d",subst_cnt++);
 953                         subst_chars(attachname, ":?*&|<>\t\r\n", '_');
 954                         g_snprintf(buf, sizeof(buf), "%s%s",
 955                                    dirname,
 956                                    (attachname[0] == G_DIR_SEPARATOR)
 957                                    ? &attachname[1]
 958                                    : attachname);
 959                         subst_chars(buf, "/\\", G_DIR_SEPARATOR);
 960                         attachdir = g_dirname(buf);
 961                         make_dir_hier(attachdir);
 962                         g_free(attachdir);
 963
 964                         if (is_file_exist(buf)) {
 965                                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
 966                                                       attachname);
 967                                 aval = alertpanel(_("Overwrite"), res, _("OK"),
 968                                                   _("Cancel"), NULL);
 969                                 g_free(res);
 970                         }
 971                         g_free(attachname);
 972
 973                         if ((G_ALERTDEFAULT != aval) || (procmime_get_part(buf, attachment) < 0))
 974                                 alertpanel_error(_("Can't save the part of multipart message."));
 975                 }
 976                 attachment = procmime_mimeinfo_next(attachment);
 977         }
 978 }
 979
 980 static void mimeview_display_as_text(MimeView *mimeview)
 981 {
 982         MimeInfo *partinfo;
 983
 984         if (!mimeview->opened) return;
 985
 986         partinfo = mimeview_get_selected_part(mimeview);
 987         if (!partinfo)  {
 988                 partinfo = (MimeInfo *) gtk_object_get_data
 989                         (GTK_OBJECT(mimeview->popupmenu),
 990                          "pop_partinfo");
 991                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
 992                                     "pop_partinfo", NULL);
 993
 994         }
 995         g_return_if_fail(partinfo != NULL);
 996         mimeview_show_message_part(mimeview, partinfo);
 997 }
 998
 999 static void mimeview_save_as(MimeView *mimeview)
1000 {
1001         gchar *filename;
1002         gchar *defname = NULL;
1003         MimeInfo *partinfo;
1004         gchar *res;
1005         const gchar *partname = NULL;
1006
1007         if (!mimeview->opened) return;
1008         if (!mimeview->file) return;
1009
1010         partinfo = mimeview_get_selected_part(mimeview);
1011         if (!partinfo) {
1012                 partinfo = (MimeInfo *) gtk_object_get_data
1013                         (GTK_OBJECT(mimeview->popupmenu),
1014                          "pop_partinfo");
1015                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1016                                     "pop_partinfo", NULL);
1017         }
1018         g_return_if_fail(partinfo != NULL);
1019
1020         if (partname = procmime_mimeinfo_get_parameter(partinfo, "name")) {
1021                 Xstrdup_a(defname, partname, return);
1022                 subst_for_filename(defname);
1023         }
1024
1025         filename = filesel_select_file(_("Save as"), defname);
1026         if (!filename) return;
1027         if (is_file_exist(filename)) {
1028                 AlertValue aval;
1029                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1030                                       filename);
1031                 aval = alertpanel(_("Overwrite"), res, _("OK"),
1032                                   _("Cancel"), NULL);
1033                 g_free(res);
1034                 if (G_ALERTDEFAULT != aval) return;
1035         }
1036
1037         if (procmime_get_part(filename, partinfo) < 0)
1038                 alertpanel_error
1039                         (_("Can't save the part of multipart message."));
1040 }
1041
1042 static void mimeview_launch(MimeView *mimeview)
1043 {
1044         MimeInfo *partinfo;
1045         gchar *filename;
1046
1047         if (!mimeview->opened) return;
1048         if (!mimeview->file) return;
1049
1050         partinfo = mimeview_get_selected_part(mimeview);
1051         if (!partinfo) {
1052                 partinfo = (MimeInfo *) gtk_object_get_data
1053                         (GTK_OBJECT(mimeview->popupmenu),
1054                          "pop_partinfo");
1055                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1056                                     "pop_partinfo", NULL);
1057         }
1058         g_return_if_fail(partinfo != NULL);
1059
1060         filename = procmime_get_tmp_file_name(partinfo);
1061
1062         if (procmime_get_part(filename, partinfo) < 0)
1063                 alertpanel_error
1064                         (_("Can't save the part of multipart message."));
1065         else
1066                 mimeview_view_file(filename, partinfo, NULL);
1067
1068         g_free(filename);
1069 }
1070
1071 static void mimeview_open_with(MimeView *mimeview)
1072 {
1073         MimeInfo *partinfo;
1074         gchar *filename;
1075         gchar *cmd;
1076
1077         if (!mimeview->opened) return;
1078         if (!mimeview->file) return;
1079
1080         partinfo = mimeview_get_selected_part(mimeview);
1081         if (!partinfo) {
1082                 partinfo = (MimeInfo *) gtk_object_get_data
1083                         (GTK_OBJECT(mimeview->popupmenu),
1084                          "pop_partinfo");
1085                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1086                                     "pop_partinfo", NULL);
1087         }
1088         g_return_if_fail(partinfo != NULL);
1089
1090         filename = procmime_get_tmp_file_name(partinfo);
1091
1092         if (procmime_get_part(filename, partinfo) < 0) {
1093                 alertpanel_error
1094                         (_("Can't save the part of multipart message."));
1095                 g_free(filename);
1096                 return;
1097         }
1098
1099         if (!prefs_common.mime_open_cmd_history)
1100                 prefs_common.mime_open_cmd_history =
1101                         add_history(NULL, prefs_common.mime_open_cmd);
1102
1103         cmd = input_dialog_combo
1104                 (_("Open with"),
1105                  _("Enter the command line to open file:\n"
1106                    "(`%s' will be replaced with file name)"),
1107                  prefs_common.mime_open_cmd,
1108                  prefs_common.mime_open_cmd_history,
1109                  TRUE);
1110         if (cmd) {
1111                 mimeview_view_file(filename, partinfo, cmd);
1112                 g_free(prefs_common.mime_open_cmd);
1113                 prefs_common.mime_open_cmd = cmd;
1114                 prefs_common.mime_open_cmd_history =
1115                         add_history(prefs_common.mime_open_cmd_history, cmd);
1116         }
1117
1118         g_free(filename);
1119 }
1120
1121 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1122                                const gchar *cmdline)
1123 {
1124         static gchar *default_image_cmdline = "display '%s'";
1125         static gchar *default_audio_cmdline = "play '%s'";
1126         static gchar *default_html_cmdline = DEFAULT_BROWSER_CMD;
1127         static gchar *mime_cmdline = "metamail -d -b -x -c %s '%s'";
1128         gchar buf[1024];
1129         gchar m_buf[1024];
1130         const gchar *cmd;
1131         const gchar *def_cmd;
1132         const gchar *p;
1133
1134         if (cmdline) {
1135                 cmd = cmdline;
1136                 def_cmd = NULL;
1137         } else if (MIMETYPE_APPLICATION == partinfo->type) {
1138                 return;
1139         } else if (MIMETYPE_IMAGE == partinfo->type) {
1140                 cmd = prefs_common.mime_image_viewer;
1141                 def_cmd = default_image_cmdline;
1142         } else if (MIMETYPE_AUDIO == partinfo->type) {
1143                 cmd = prefs_common.mime_audio_player;
1144                 def_cmd = default_audio_cmdline;
1145         } else if (MIMETYPE_TEXT == partinfo->type && !strcmp(partinfo->subtype, "html")) {
1146                 cmd = prefs_common.uri_cmd;
1147                 def_cmd = default_html_cmdline;
1148         } else {
1149                 gchar *content_type;
1150
1151                 content_type = g_strdup_printf("%s/%s", procmime_get_type_str(partinfo->type), partinfo->subtype);
1152                 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
1153                            content_type, "%s");
1154                 g_free(content_type);
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 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1175 {
1176         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1177 }
1178
1179 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1180 {
1181         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1182 }
1183
1184 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1185 {
1186         GSList *mimeview_list, *viewer_list;
1187
1188         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1189                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1190
1191                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1192                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1193                         mimeview->mimeviewer = NULL;
1194                 }
1195
1196                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1197                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1198
1199                         mimeviewer->destroy_viewer(mimeviewer);
1200                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1201                 }
1202         }
1203
1204         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1205 }
1206
1207 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1208 {
1209         gint      num;
1210         MimeInfo *partinfo;
1211
1212         num      = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "icon_number"));
1213         partinfo = gtk_object_get_data(GTK_OBJECT(button), "partinfo");
1214
1215         icon_selected(mimeview, num, partinfo);
1216         gtk_widget_grab_focus(button);
1217         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1218                 toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1219                 if (event->button == 2 || event->button == 3)
1220                         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button),
1221                                                      TRUE);
1222         } else {
1223                 gtk_signal_emit_stop_by_name(GTK_OBJECT(button), "button_press_event");
1224         }
1225
1226         part_button_pressed(mimeview, event, partinfo);
1227
1228         return TRUE;
1229 }
1230
1231 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
1232 {
1233         GtkCTreeNode *node;
1234         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1235         if (node)
1236                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1237 }
1238
1239 #undef  KEY_PRESS_EVENT_STOP
1240 #define KEY_PRESS_EVENT_STOP() \
1241         if (gtk_signal_n_emissions_by_name \
1242                 (GTK_OBJECT(button), "key_press_event") > 0) { \
1243                 gtk_signal_emit_stop_by_name(GTK_OBJECT(button), \
1244                                              "key_press_event"); \
1245         }
1246 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
1247                              MimeView *mimeview)
1248 {
1249         gint          num;
1250         MimeInfo     *partinfo;
1251         SummaryView  *summaryview;
1252         TextView     *textview;
1253
1254         num      = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "icon_number"));
1255         partinfo = gtk_object_get_data(GTK_OBJECT(button), "partinfo");
1256
1257         if (!event) return FALSE;
1258
1259         textview = mimeview->textview;
1260
1261         switch (event->keyval) {
1262         case GDK_space:
1263                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1264                         /* stop the button being untoggled */
1265                         KEY_PRESS_EVENT_STOP();
1266                         if (textview_scroll_page(textview, FALSE))
1267                                 return TRUE;
1268
1269                         if (icon_list_select_by_number(mimeview, num + 1))
1270                                 return TRUE;
1271                 } else {
1272                         icon_selected(mimeview, num, partinfo);
1273                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1274                         return TRUE;
1275                 }
1276
1277                 break;
1278         case GDK_BackSpace:
1279                 textview_scroll_page(textview, TRUE);
1280                 return TRUE;
1281         case GDK_Return:
1282                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1283                         KEY_PRESS_EVENT_STOP();
1284                         textview_scroll_one_line(textview,
1285                                                  (event->state & GDK_MOD1_MASK) != 0);
1286                         return TRUE;
1287                 } else {
1288                         icon_selected(mimeview, num, partinfo);
1289                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1290                         return TRUE;
1291                 }
1292
1293         case GDK_n:
1294         case GDK_N:
1295                 BREAK_ON_MODIFIER_KEY();
1296                 if (icon_list_select_by_number(mimeview, num + 1)) {
1297                         KEY_PRESS_EVENT_STOP();
1298                         return TRUE;
1299                 }
1300                 break;
1301
1302         case GDK_p:
1303         case GDK_P:
1304                 BREAK_ON_MODIFIER_KEY();
1305                 if (icon_list_select_by_number(mimeview, num - 1)) {
1306                         KEY_PRESS_EVENT_STOP();
1307                         return TRUE;
1308                 }
1309                 break;
1310
1311         case GDK_y:
1312                 BREAK_ON_MODIFIER_KEY();
1313                 KEY_PRESS_EVENT_STOP();
1314                 mimeview_save_as(mimeview);
1315                 return TRUE;
1316         case GDK_t:
1317                 BREAK_ON_MODIFIER_KEY();
1318                 KEY_PRESS_EVENT_STOP();
1319                 mimeview_display_as_text(mimeview);
1320                 return TRUE;
1321         case GDK_l:
1322                 BREAK_ON_MODIFIER_KEY();
1323                 KEY_PRESS_EVENT_STOP();
1324                 mimeview_launch(mimeview);
1325                 return TRUE;
1326         default:
1327                 break;
1328         }
1329
1330         if (!mimeview->messageview->mainwin) return FALSE;
1331         summaryview = mimeview->messageview->mainwin->summaryview;
1332         summary_pass_key_press_event(summaryview, event);
1333         return TRUE;
1334 }
1335
1336 static void toggle_icon(GtkToggleButton *button, MimeView *mimeview)
1337 {
1338         GList *child;
1339
1340         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1341         for (; child != NULL; child = g_list_next(child)) {
1342                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1343                     GTK_TOGGLE_BUTTON(child->data) != button &&
1344                     gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(child->data)))
1345                         gtk_toggle_button_set_active
1346                                 (GTK_TOGGLE_BUTTON(child->data),
1347                                  FALSE);
1348         }
1349 }
1350
1351 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
1352 {
1353         GtkWidget *pixmap;
1354         GtkWidget *vbox;
1355         GtkWidget *button;
1356         gchar *tip;
1357         gchar *desc = NULL;
1358         StockPixmap stockp;
1359
1360         vbox = mimeview->icon_vbox;
1361         mimeview->icon_count++;
1362         button = gtk_toggle_button_new();
1363         gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
1364         gtk_object_set_data(GTK_OBJECT(button), "icon_number",
1365                 GINT_TO_POINTER(mimeview->icon_count));
1366         gtk_object_set_data(GTK_OBJECT(button), "partinfo",
1367                 mimeinfo);
1368
1369         switch (mimeinfo->type) {
1370
1371         case MIMETYPE_TEXT:
1372                 if (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "html"))
1373                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
1374                 else if  (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "enriched"))
1375                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
1376                 else
1377                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
1378                 break;
1379         case MIMETYPE_MESSAGE:
1380                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
1381                 break;
1382         case MIMETYPE_APPLICATION:
1383                 stockp = STOCK_PIXMAP_MIME_APPLICATION;
1384                 break;
1385         case MIMETYPE_IMAGE:
1386                 stockp = STOCK_PIXMAP_MIME_IMAGE;
1387                 break;
1388         case MIMETYPE_AUDIO:
1389                 stockp = STOCK_PIXMAP_MIME_AUDIO;
1390                 break;
1391         default:
1392                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
1393                 break;
1394         }
1395
1396         pixmap = stock_pixmap_widget(mimeview->mainwin->window, stockp);
1397         gtk_container_add(GTK_CONTAINER(button), pixmap);
1398
1399         if (!desc) {
1400                 if (prefs_common.attach_desc)
1401                         desc = get_part_description(mimeinfo);
1402                 else
1403                         desc = get_part_name(mimeinfo);
1404         }
1405
1406         if (desc && *desc)
1407                 tip = g_strdup_printf("%s\n%s/%s\n%s", desc,
1408                                 procmime_get_type_str(mimeinfo->type),
1409                                 mimeinfo->subtype,
1410                                 to_human_readable(mimeinfo->length));
1411         else
1412                 tip = g_strdup_printf("%s/%s\n%s",
1413                                 procmime_get_type_str(mimeinfo->type),
1414                                 mimeinfo->subtype,
1415                                 to_human_readable(mimeinfo->length));
1416
1417         gtk_tooltips_set_tip(mimeview->tooltips, button, tip, NULL);
1418         g_free(tip);
1419         gtk_widget_show_all(button);
1420         gtk_signal_connect(GTK_OBJECT(button), "button_press_event",
1421                            GTK_SIGNAL_FUNC(icon_clicked_cb), mimeview);
1422         gtk_signal_connect(GTK_OBJECT(button), "key_press_event",
1423                            GTK_SIGNAL_FUNC(icon_key_pressed), mimeview);
1424         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
1425
1426 }
1427
1428 static void icon_list_clear (MimeView *mimeview)
1429 {
1430         GList     *child;
1431         GtkAdjustment *adj;
1432
1433         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1434         for (; child != NULL; child = g_list_next(child)) {
1435                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
1436                                        GTK_WIDGET(child->data));
1437         }
1438         mimeview->icon_count = 0;
1439         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1440         adj->value = adj->lower;
1441         gtk_signal_emit_by_name(GTK_OBJECT (adj), "value_changed");
1442 }
1443
1444 static void icon_list_toggle_by_mime_info(MimeView      *mimeview,
1445                                           MimeInfo      *mimeinfo)
1446 {
1447         GList *child;
1448
1449         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1450         for (; child != NULL; child = g_list_next(child)) {
1451                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1452                     gtk_object_get_data(GTK_OBJECT(child->data),
1453                                         "partinfo") == (gpointer)mimeinfo) {
1454                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
1455                         gtk_toggle_button_set_active
1456                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
1457                 }
1458         }
1459 }
1460
1461 /*!
1462  *\brief        Used to 'click' the next or previous icon.
1463  *
1464  *\return       true if the icon 'number' exists and was selected.
1465  */
1466 static gboolean icon_list_select_by_number(MimeView     *mimeview,
1467                                            gint          number)
1468 {
1469         GList *child;
1470
1471         if (number == 0) return FALSE;
1472         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1473         for (; child != NULL; child = g_list_next(child)) {
1474                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1475                     GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(child->data),
1476                                         "icon_number")) == number) {
1477                         icon_selected(mimeview, number,
1478                                       (MimeInfo*)gtk_object_get_data(GTK_OBJECT(child->data),
1479                                                                      "partinfo"));
1480                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
1481                         gtk_toggle_button_set_active
1482                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
1483                         gtk_widget_grab_focus(GTK_WIDGET(child->data));
1484
1485                         return TRUE;
1486                 }
1487         }
1488         return FALSE;
1489 }
1490
1491 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
1492                                         GtkAllocation *size, MimeView *mimeview)
1493 {
1494         GtkAllocation *mainbox_size;
1495         GtkAllocation *vbox_size;
1496         GtkAllocation *layout_size;
1497         GtkAdjustment *adj;
1498
1499         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1500
1501         mainbox_size = &mimeview->icon_mainbox->allocation;
1502         vbox_size = &mimeview->icon_vbox->allocation;
1503         layout_size = &mimeview->icon_scroll->allocation;
1504
1505         /* centralise the vbox */
1506         gtk_layout_move(GTK_LAYOUT(mimeview->icon_scroll), mimeview->icon_vbox,
1507                         (mainbox_size->width - vbox_size->width)/2, 0);
1508
1509         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
1510                             GTK_LAYOUT(mimeview->icon_scroll)->width,
1511                             MAX(vbox_size->height, layout_size->height));
1512         adj->step_increment = 5;
1513 }
1514
1515 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
1516 {
1517         GtkRequisition size;
1518         gint           width;
1519         g_return_if_fail(mimeinfo != NULL);
1520
1521         while (mimeinfo != NULL) {
1522                 if (mimeinfo->type != MIMETYPE_MULTIPART)
1523                         icon_list_append_icon(mimeview, mimeinfo);
1524                 if (mimeinfo->node->children != NULL)
1525                         icon_list_create(mimeview, (MimeInfo *) mimeinfo->node->children->data);
1526                 mimeinfo = mimeinfo->node->next != NULL ? (MimeInfo *) mimeinfo->node->next->data : NULL;
1527         }
1528         gtk_widget_size_request(mimeview->icon_vbox, &size);
1529         width = size.width + 4;
1530         if (width > mimeview->icon_mainbox->requisition.width) {
1531                 gtk_widget_set_usize(mimeview->icon_mainbox,
1532                                      width, -1);
1533         }
1534
1535 }
1536
1537 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
1538 {
1539         gtk_widget_ref(button);
1540
1541         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1542                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
1543                                         GTK_SHADOW_NONE);
1544                 gtk_widget_hide(mimeview->icon_mainbox);
1545                 gtk_widget_show(mimeview->ctree_mainbox);
1546                 gtk_paned_set_position(GTK_PANED(mimeview->paned), mimeview->oldsize);
1547
1548                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
1549                                         button);
1550                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
1551                                    button, FALSE, FALSE, 0);
1552                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 6);
1553         } else {
1554                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
1555                               GTK_SHADOW_NONE);
1556                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.height;
1557                 gtk_widget_hide(mimeview->ctree_mainbox);
1558                 gtk_widget_show(mimeview->icon_mainbox);
1559                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
1560
1561                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
1562                                         button);
1563                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
1564                                    button, FALSE, FALSE, 0);
1565                 gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
1566                 if (mimeview->opened)
1567                         icon_list_toggle_by_mime_info
1568                                 (mimeview, gtk_ctree_node_get_row_data(GTK_CTREE(mimeview->ctree),
1569                                                                        mimeview->opened));
1570
1571                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 0);
1572         }
1573         gtk_widget_grab_focus(button);
1574         gtk_widget_unref(button);
1575
1576 }
1577
1578 void mimeview_update (MimeView *mimeview) {
1579         if (mimeview && mimeview->mimeinfo) {
1580                 icon_list_clear(mimeview);
1581                 icon_list_create(mimeview, mimeview->mimeinfo);
1582         }
1583 }