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                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(mimeview->mime_toggle)))
 351                         gtk_widget_grab_focus(mimeview->ctree);
 352         }
 353 }
 354
 355 void mimeview_destroy(MimeView *mimeview)
 356 {
 357         GSList *cur;
 358
 359         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 360                 MimeViewer *viewer = (MimeViewer *) cur->data;
 361                 gtk_container_remove(GTK_CONTAINER(mimeview->mime_notebook),
 362                         GTK_WIDGET(viewer->get_widget(viewer)));
 363                 viewer->destroy_viewer(viewer);
 364         }
 365         g_slist_free(mimeview->viewers);
 366         gtk_target_list_unref(mimeview->target_list);
 367
 368         procmime_mimeinfo_free_all(mimeview->mimeinfo);
 369         g_free(mimeview->file);
 370         g_free(mimeview);
 371
 372         mimeviews = g_slist_remove(mimeviews, mimeview);
 373
 374 }
 375
 376 MimeInfo *mimeview_get_selected_part(MimeView *mimeview)
 377 {
 378         return gtk_ctree_node_get_row_data
 379                 (GTK_CTREE(mimeview->ctree), mimeview->opened);
 380 }
 381
 382 static void mimeview_set_multipart_tree(MimeView *mimeview,
 383                                         MimeInfo *mimeinfo,
 384                                         GtkCTreeNode *parent)
 385 {
 386         GtkCTreeNode *node;
 387
 388         g_return_if_fail(mimeinfo != NULL);
 389
 390         while (mimeinfo != NULL) {
 391                 node = mimeview_append_part(mimeview, mimeinfo, parent);
 392
 393                 if (mimeinfo->children)
 394                         mimeview_set_multipart_tree(mimeview, mimeinfo->children, node);
 395                 mimeinfo = mimeinfo->next;
 396         }
 397 }
 398
 399 static gchar *get_part_name(MimeInfo *partinfo)
 400 {
 401         gchar *name;
 402
 403         name = g_hash_table_lookup(partinfo->parameters, "name");
 404         if(name == NULL)
 405                 name = "";
 406
 407         return name;
 408 }
 409
 410 static gchar *get_part_description(MimeInfo *partinfo)
 411 {
 412         if (partinfo->description)
 413                 return partinfo->description;
 414         else if (g_hash_table_lookup(partinfo->parameters, "name") != NULL)
 415                 return g_hash_table_lookup(partinfo->parameters, "name");
 416         else
 417                 return "";
 418 }
 419
 420 static GtkCTreeNode *mimeview_append_part(MimeView *mimeview,
 421                                           MimeInfo *partinfo,
 422                                           GtkCTreeNode *parent)
 423 {
 424         GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
 425         GtkCTreeNode *node;
 426         static gchar content_type[64];
 427         gchar *str[N_MIMEVIEW_COLS];
 428
 429         if (partinfo->type != MIMETYPE_UNKNOWN && partinfo->subtype) {
 430                 g_snprintf(content_type, 64, "%s/%s", procmime_get_type_str(partinfo->type), partinfo->subtype);
 431         } else {
 432                 g_snprintf(content_type, 64, "UNKNOWN");
 433         }
 434
 435         str[COL_MIMETYPE] = content_type;
 436         str[COL_SIZE] = to_human_readable(partinfo->length);
 437         if (prefs_common.attach_desc)
 438                 str[COL_NAME] = get_part_description(partinfo);
 439         else
 440                 str[COL_NAME] = get_part_name(partinfo);
 441
 442         node = gtk_ctree_insert_node(ctree, parent, NULL, str, 0,
 443                                      NULL, NULL, NULL, NULL,
 444                                      FALSE, TRUE);
 445         gtk_ctree_node_set_row_data(ctree, node, partinfo);
 446
 447         return node;
 448 }
 449
 450 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
 451 {
 452         FILE *fp;
 453         const gchar *fname;
 454
 455         if (!partinfo) return;
 456
 457         fname = mimeview->file;
 458         if (!fname) return;
 459
 460         if ((fp = fopen(fname, "rb")) == NULL) {
 461                 FILE_OP_ERROR(fname, "fopen");
 462                 return;
 463         }
 464
 465         if (fseek(fp, partinfo->offset, SEEK_SET) < 0) {
 466                 FILE_OP_ERROR(mimeview->file, "fseek");
 467                 fclose(fp);
 468                 return;
 469         }
 470
 471         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 472         textview_show_part(mimeview->textview, partinfo, fp);
 473
 474         fclose(fp);
 475 }
 476
 477 static MimeViewer *get_viewer_for_content_type(MimeView *mimeview, const gchar *content_type)
 478 {
 479         GSList *cur;
 480         MimeViewerFactory *factory = NULL;
 481         MimeViewer *viewer = NULL;
 482
 483 /*
 484  * FNM_CASEFOLD is a GNU extension
 485  * if its not defined copy the string to the stack and
 486  * convert the copy to lower case
 487  */
 488 #ifndef FNM_CASEFOLD
 489 #define FNM_CASEFOLD 0
 490         Xstrdup_a(content_type, content_type, return NULL);
 491         g_strdown((gchar *)content_type);
 492 #endif
 493
 494         for (cur = mimeviewer_factories; cur != NULL; cur = g_slist_next(cur)) {
 495                 MimeViewerFactory *curfactory = cur->data;
 496                 gint i = 0;
 497
 498                 while (curfactory->content_types[i] != NULL) {
 499                         debug_print("%s\n", curfactory->content_types[i]);
 500                         if(!fnmatch(curfactory->content_types[i], content_type, FNM_CASEFOLD)) {
 501                                 factory = curfactory;
 502                                 break;
 503                         }
 504                         i++;
 505                 }
 506                 if (factory != NULL)
 507                         break;
 508         }
 509         if (factory == NULL)
 510                 return NULL;
 511
 512         for (cur = mimeview->viewers; cur != NULL; cur = g_slist_next(cur)) {
 513                 MimeViewer *curviewer = cur->data;
 514
 515                 if (curviewer->factory == factory)
 516                         return curviewer;
 517         }
 518         viewer = factory->create_viewer();
 519         gtk_container_add(GTK_CONTAINER(mimeview->mime_notebook),
 520                 GTK_WIDGET(viewer->get_widget(viewer)));
 521
 522         mimeview->viewers = g_slist_append(mimeview->viewers, viewer);
 523
 524         return viewer;
 525 }
 526
 527 static MimeViewer *get_viewer_for_mimeinfo(MimeView *mimeview, MimeInfo *partinfo)
 528 {
 529         gchar *content_type = NULL;
 530         MimeViewer *viewer = NULL;
 531
 532         if ((partinfo->type == MIMETYPE_APPLICATION) &&
 533             (g_strcasecmp(partinfo->subtype, "octet-stream")) &&
 534             (partinfo->name != NULL)) {
 535                 content_type = procmime_get_mime_type(partinfo->name);
 536         } else {
 537                 content_type = g_strdup_printf("%s/%s", procmime_get_type_str(partinfo->type), partinfo->subtype);
 538         }
 539
 540         if (content_type != NULL) {
 541                 viewer = get_viewer_for_content_type(mimeview, content_type);
 542                 g_free(content_type);
 543         }
 544
 545         return viewer;
 546 }
 547
 548 static gboolean mimeview_show_part(MimeView *mimeview, MimeInfo *partinfo)
 549 {
 550         MimeViewer *viewer;
 551
 552         viewer = get_viewer_for_mimeinfo(mimeview, partinfo);
 553         if (viewer == NULL) {
 554                 if (mimeview->mimeviewer != NULL)
 555                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 556                 mimeview->mimeviewer = NULL;
 557                 return FALSE;
 558         }
 559
 560         if (mimeview->mimeviewer != viewer) {
 561                 if (mimeview->mimeviewer != NULL)
 562                         mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 563                 mimeview->mimeviewer = viewer;
 564                 mimeview_change_view_type(mimeview, MIMEVIEW_VIEWER);
 565         }
 566         viewer->show_mimepart(viewer, mimeview->file, partinfo);
 567
 568         return TRUE;
 569 }
 570
 571 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
 572 {
 573         TextView  *textview  = mimeview->textview;
 574
 575         if ((mimeview->type != MIMEVIEW_VIEWER) &&
 576             (mimeview->type == type)) return;
 577
 578         switch (type) {
 579         case MIMEVIEW_TEXT:
 580                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 581                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 582                         GTK_WIDGET_PTR(textview)));
 583                 break;
 584         case MIMEVIEW_VIEWER:
 585                 gtk_notebook_set_page(GTK_NOTEBOOK(mimeview->mime_notebook),
 586                         gtk_notebook_page_num(GTK_NOTEBOOK(mimeview->mime_notebook),
 587                         GTK_WIDGET(mimeview->mimeviewer->get_widget(mimeview->mimeviewer))));
 588                 break;
 589         default:
 590                 return;
 591         }
 592
 593         mimeview->type = type;
 594 }
 595
 596 void mimeview_clear(MimeView *mimeview)
 597 {
 598         GtkCList *clist = GTK_CLIST(mimeview->ctree);
 599
 600         noticeview_hide(mimeview->siginfoview);
 601
 602         gtk_clist_clear(clist);
 603         textview_clear(mimeview->textview);
 604         if (mimeview->mimeviewer != NULL)
 605                 mimeview->mimeviewer->clear_viewer(mimeview->mimeviewer);
 606
 607         if (mimeview->mimeinfo != NULL)
 608                 procmime_mimeinfo_free_all(mimeview->mimeinfo);
 609         mimeview->mimeinfo = NULL;
 610
 611         mimeview->opened = NULL;
 612
 613         g_free(mimeview->file);
 614         mimeview->file = NULL;
 615
 616         icon_list_clear(mimeview);
 617 }
 618
 619 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 620                               MimeView *mimeview)
 621 {
 622         MimeInfo *partinfo;
 623
 624         if (mimeview->opened == node) return;
 625         mimeview->opened = node;
 626         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
 627
 628         partinfo = gtk_ctree_node_get_row_data(ctree, node);
 629         if (!partinfo) return;
 630
 631         /* ungrab the mouse event */
 632         if (GTK_WIDGET_HAS_GRAB(ctree)) {
 633                 gtk_grab_remove(GTK_WIDGET(ctree));
 634                 if (gdk_pointer_is_grabbed())
 635                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
 636         }
 637
 638         mimeview->textview->default_text = FALSE;
 639
 640         if (privacy_mimeinfo_is_signed(partinfo)) {
 641                 noticeview_set_text(mimeview->siginfoview, "Signed Part");
 642                 noticeview_show(mimeview->siginfoview);
 643         } else {
 644                 noticeview_hide(mimeview->siginfoview);
 645         }
 646
 647         if (!mimeview_show_part(mimeview, partinfo)) {
 648                 switch (partinfo->type) {
 649                 case MIMETYPE_TEXT:
 650                 case MIMETYPE_MESSAGE:
 651                 case MIMETYPE_MULTIPART:
 652                         mimeview_show_message_part(mimeview, partinfo);
 653
 654                         break;
 655                 default:
 656                         mimeview->textview->default_text = TRUE;
 657                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 658                         textview_show_mime_part(mimeview->textview, partinfo);
 659                         break;
 660                 }
 661         }
 662 }
 663
 664 static void mimeview_start_drag(GtkWidget *widget, gint button,
 665                                 GdkEvent *event, MimeView *mimeview)
 666 {
 667         GdkDragContext *context;
 668         MimeInfo *partinfo;
 669
 670         g_return_if_fail(mimeview != NULL);
 671
 672         partinfo = mimeview_get_selected_part(mimeview);
 673         if (partinfo->filename == NULL && partinfo->name == NULL) return;
 674
 675         context = gtk_drag_begin(widget, mimeview->target_list,
 676                                  GDK_ACTION_COPY, button, event);
 677         gtk_drag_set_icon_default(context);
 678 }
 679
 680 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
 681                                     MimeView *mimeview)
 682 {
 683         GtkCList *clist = GTK_CLIST(widget);
 684         gint row, column;
 685
 686         if (!event) return FALSE;
 687
 688         if (event->button == 2 || event->button == 3) {
 689                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
 690                                                   &row, &column))
 691                         return FALSE;
 692                 gtk_clist_unselect_all(clist);
 693                 gtk_clist_select_row(clist, row, column);
 694                 gtkut_clist_set_focus_row(clist, row);
 695         }
 696         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
 697
 698         return TRUE;
 699 }
 700
 701 static void part_button_pressed(MimeView *mimeview, GdkEventButton *event,
 702                                 MimeInfo *partinfo)
 703 {
 704         if (event->button == 2 ||
 705             (event->button == 1 && event->type == GDK_2BUTTON_PRESS)) {
 706                 /* call external program for image, audio or html */
 707                 mimeview_launch(mimeview);
 708         } else if (event->button == 3) {
 709                 if (partinfo && (partinfo->type == MIMETYPE_TEXT ||
 710                                  partinfo->type == MIMETYPE_MESSAGE ||
 711                                  partinfo->type == MIMETYPE_IMAGE ||
 712                                  partinfo->type == MIMETYPE_MULTIPART))
 713                         menu_set_sensitive(mimeview->popupfactory,
 714                                            "/Display as text", FALSE);
 715                 else
 716                         menu_set_sensitive(mimeview->popupfactory,
 717                                            "/Display as text", TRUE);
 718                 if (partinfo &&
 719                     partinfo->type == MIMETYPE_APPLICATION)
 720                         menu_set_sensitive(mimeview->popupfactory,
 721                                            "/Open", FALSE);
 722                 else
 723                         menu_set_sensitive(mimeview->popupfactory,
 724                                            "/Open", TRUE);
 725
 726                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
 727                                     "pop_partinfo", partinfo);
 728
 729                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
 730                                NULL, NULL, NULL, NULL,
 731                                event->button, event->time);
 732         }
 733 }
 734
 735
 736 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
 737 {
 738         mimeview_key_pressed(mimeview->ctree, event, mimeview);
 739 }
 740
 741 #define BREAK_ON_MODIFIER_KEY() \
 742         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
 743
 744 #define KEY_PRESS_EVENT_STOP() \
 745         if (gtk_signal_n_emissions_by_name \
 746                 (GTK_OBJECT(ctree), "key_press_event") > 0) { \
 747                 gtk_signal_emit_stop_by_name(GTK_OBJECT(ctree), \
 748                                              "key_press_event"); \
 749         }
 750
 751 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
 752                                  MimeView *mimeview)
 753 {
 754         SummaryView *summaryview;
 755         GtkCTree *ctree = GTK_CTREE(widget);
 756         GtkCTreeNode *node;
 757
 758         if (!event) return FALSE;
 759         if (!mimeview->opened) return FALSE;
 760
 761         switch (event->keyval) {
 762         case GDK_space:
 763                 if (textview_scroll_page(mimeview->textview, FALSE))
 764                         return TRUE;
 765
 766                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
 767                 if (node) {
 768                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
 769                         gtk_sctree_select(GTK_SCTREE(ctree), node);
 770                         return TRUE;
 771                 }
 772                 break;
 773         case GDK_BackSpace:
 774                 textview_scroll_page(mimeview->textview, TRUE);
 775                 return TRUE;
 776         case GDK_Return:
 777                 textview_scroll_one_line(mimeview->textview,
 778                                          (event->state & GDK_MOD1_MASK) != 0);
 779                 return TRUE;
 780         case GDK_n:
 781         case GDK_N:
 782                 BREAK_ON_MODIFIER_KEY();
 783                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
 784                 KEY_PRESS_EVENT_STOP();
 785
 786                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 787                                         GTK_SCROLL_STEP_FORWARD, 0.0);
 788                 return TRUE;
 789         case GDK_p:
 790         case GDK_P:
 791                 BREAK_ON_MODIFIER_KEY();
 792                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
 793                 KEY_PRESS_EVENT_STOP();
 794
 795                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 796                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
 797                 return TRUE;
 798         case GDK_y:
 799                 BREAK_ON_MODIFIER_KEY();
 800                 KEY_PRESS_EVENT_STOP();
 801                 mimeview_save_as(mimeview);
 802                 return TRUE;
 803         case GDK_t:
 804                 BREAK_ON_MODIFIER_KEY();
 805                 KEY_PRESS_EVENT_STOP();
 806                 mimeview_display_as_text(mimeview);
 807                 return TRUE;
 808         case GDK_l:
 809                 BREAK_ON_MODIFIER_KEY();
 810                 KEY_PRESS_EVENT_STOP();
 811                 mimeview_launch(mimeview);
 812                 return TRUE;
 813         default:
 814                 break;
 815         }
 816
 817         if (!mimeview->messageview->mainwin) return FALSE;
 818         summaryview = mimeview->messageview->mainwin->summaryview;
 819         summary_pass_key_press_event(summaryview, event);
 820         return TRUE;
 821 }
 822
 823 static void mimeview_drag_data_get(GtkWidget        *widget,
 824                                    GdkDragContext   *drag_context,
 825                                    GtkSelectionData *selection_data,
 826                                    guint             info,
 827                                    guint             time,
 828                                    MimeView         *mimeview)
 829 {
 830         gchar *filename, *uriname;
 831         MimeInfo *partinfo;
 832
 833         if (!mimeview->opened) return;
 834         if (!mimeview->file) return;
 835
 836         partinfo = mimeview_get_selected_part(mimeview);
 837         if (!partinfo) return;
 838         if (!partinfo->filename && !partinfo->name) return;
 839
 840         filename = partinfo->filename ? partinfo->filename : partinfo->name;
 841         filename = g_basename(filename);
 842         if (*filename == '\0') return;
 843
 844         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
 845                                filename, NULL);
 846
 847         if (procmime_get_part(filename, partinfo) < 0)
 848                 alertpanel_error
 849                         (_("Can't save the part of multipart message."));
 850
 851         uriname = g_strconcat("file:/", filename, NULL);
 852         gtk_selection_data_set(selection_data, selection_data->target, 8,
 853                                uriname, strlen(uriname));
 854
 855         g_free(uriname);
 856         g_free(filename);
 857 }
 858
 859 static void mimeview_save_all(MimeView *mimeview)
 860 {
 861         gchar *dirname;
 862         gchar *defname = NULL;
 863         MimeInfo *partinfo;
 864         MimeInfo *attachment;
 865         gchar buf[1024];
 866
 867         if (!mimeview->opened) return;
 868         if (!mimeview->file) return;
 869
 870         partinfo = mimeview_get_selected_part(mimeview);
 871         g_return_if_fail(partinfo != NULL);
 872
 873         dirname = filesel_select_file(_("Save as"), defname);
 874         if (!dirname) return;
 875
 876         if (!is_dir_exist (dirname)) {
 877                 alertpanel_error(_("`%s' is not a directory."),
 878                                  dirname);
 879                 g_free (dirname);
 880                 return;
 881         }
 882
 883         { /* add a / after the dirname, in case the user didn't */
 884                 gchar *dirname_tmp = NULL;
 885                 int dirname_last_char = strlen (dirname) - 1;
 886
 887                 if (dirname[dirname_last_char] != G_DIR_SEPARATOR) {
 888                         dirname_tmp = g_strconcat (dirname, G_DIR_SEPARATOR_S, NULL);
 889                         g_free (dirname);
 890                         dirname = dirname_tmp;
 891                 }
 892         }
 893
 894         /* return to first children */
 895         if (!partinfo->parent->children) return;  /* multipart container? */
 896         attachment = partinfo->parent->children->next;
 897         /* for each attachment, extract it in the selected dir. */
 898         while (attachment != NULL) {
 899                 static guint subst_cnt = 1;
 900                 gchar *attachdir;
 901                 gchar *attachname = g_strdup(get_part_name(attachment));
 902                 AlertValue aval = G_ALERTDEFAULT;
 903                 gchar *res;
 904
 905                 if (!attachname || !strlen(attachname))
 906                         attachname = g_strdup_printf("noname.%d",subst_cnt++);
 907                 subst_chars(attachname, ":?*&|<>\t\r\n", '_');
 908                 g_snprintf(buf, sizeof(buf), "%s%s",
 909                            dirname,
 910                            (attachname[0] == G_DIR_SEPARATOR)
 911                            ? &attachname[1]
 912                            : attachname);
 913                 subst_chars(buf, "/\\", G_DIR_SEPARATOR);
 914                 attachdir = g_dirname(buf);
 915                 make_dir_hier(attachdir);
 916                 g_free(attachdir);
 917
 918                 if (is_file_exist(buf)) {
 919                         res = g_strdup_printf(_("Overwrite existing file '%s'?"),
 920                                               attachname);
 921                         aval = alertpanel(_("Overwrite"), res, _("OK"),
 922                                           _("Cancel"), NULL);
 923                         g_free(res);
 924                 }
 925                 g_free(attachname);
 926
 927                 if ((G_ALERTDEFAULT != aval) || (procmime_get_part(buf, attachment) < 0))
 928                         alertpanel_error(_("Can't save the part of multipart message."));
 929                 attachment = attachment->next;
 930         }
 931 }
 932
 933 static void mimeview_display_as_text(MimeView *mimeview)
 934 {
 935         MimeInfo *partinfo;
 936
 937         if (!mimeview->opened) return;
 938
 939         partinfo = mimeview_get_selected_part(mimeview);
 940         if (!partinfo)  {
 941                 partinfo = (MimeInfo *) gtk_object_get_data
 942                         (GTK_OBJECT(mimeview->popupmenu),
 943                          "pop_partinfo");
 944                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
 945                                     "pop_partinfo", NULL);
 946
 947         }
 948         g_return_if_fail(partinfo != NULL);
 949         mimeview_show_message_part(mimeview, partinfo);
 950 }
 951
 952 static void mimeview_save_as(MimeView *mimeview)
 953 {
 954         gchar *filename;
 955         gchar *defname = NULL;
 956         MimeInfo *partinfo;
 957         gchar *res;
 958
 959         if (!mimeview->opened) return;
 960         if (!mimeview->file) return;
 961
 962         partinfo = mimeview_get_selected_part(mimeview);
 963         if (!partinfo) {
 964                 partinfo = (MimeInfo *) gtk_object_get_data
 965                         (GTK_OBJECT(mimeview->popupmenu),
 966                          "pop_partinfo");
 967                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
 968                                     "pop_partinfo", NULL);
 969         }
 970         g_return_if_fail(partinfo != NULL);
 971
 972         if (partinfo->filename)
 973                 defname = partinfo->filename;
 974         else if (partinfo->name) {
 975                 Xstrdup_a(defname, partinfo->name, return);
 976                 subst_for_filename(defname);
 977         }
 978
 979         filename = filesel_select_file(_("Save as"), defname);
 980         if (!filename) return;
 981         if (is_file_exist(filename)) {
 982                 AlertValue aval;
 983                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
 984                                       filename);
 985                 aval = alertpanel(_("Overwrite"), res, _("OK"),
 986                                   _("Cancel"), NULL);
 987                 g_free(res);
 988                 if (G_ALERTDEFAULT != aval) return;
 989         }
 990
 991         if (procmime_get_part(filename, partinfo) < 0)
 992                 alertpanel_error
 993                         (_("Can't save the part of multipart message."));
 994 }
 995
 996 static void mimeview_launch(MimeView *mimeview)
 997 {
 998         MimeInfo *partinfo;
 999         gchar *filename;
1000
1001         if (!mimeview->opened) return;
1002         if (!mimeview->file) return;
1003
1004         partinfo = mimeview_get_selected_part(mimeview);
1005         if (!partinfo) {
1006                 partinfo = (MimeInfo *) gtk_object_get_data
1007                         (GTK_OBJECT(mimeview->popupmenu),
1008                          "pop_partinfo");
1009                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1010                                     "pop_partinfo", NULL);
1011         }
1012         g_return_if_fail(partinfo != NULL);
1013
1014         filename = procmime_get_tmp_file_name(partinfo);
1015
1016         if (procmime_get_part(filename, partinfo) < 0)
1017                 alertpanel_error
1018                         (_("Can't save the part of multipart message."));
1019         else
1020                 mimeview_view_file(filename, partinfo, NULL);
1021
1022         g_free(filename);
1023 }
1024
1025 static void mimeview_open_with(MimeView *mimeview)
1026 {
1027         MimeInfo *partinfo;
1028         gchar *filename;
1029         gchar *cmd;
1030
1031         if (!mimeview->opened) return;
1032         if (!mimeview->file) return;
1033
1034         partinfo = mimeview_get_selected_part(mimeview);
1035         if (!partinfo) {
1036                 partinfo = (MimeInfo *) gtk_object_get_data
1037                         (GTK_OBJECT(mimeview->popupmenu),
1038                          "pop_partinfo");
1039                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1040                                     "pop_partinfo", NULL);
1041         }
1042         g_return_if_fail(partinfo != NULL);
1043
1044         filename = procmime_get_tmp_file_name(partinfo);
1045
1046         if (procmime_get_part(filename, partinfo) < 0) {
1047                 alertpanel_error
1048                         (_("Can't save the part of multipart message."));
1049                 g_free(filename);
1050                 return;
1051         }
1052
1053         if (!prefs_common.mime_open_cmd_history)
1054                 prefs_common.mime_open_cmd_history =
1055                         add_history(NULL, prefs_common.mime_open_cmd);
1056
1057         cmd = input_dialog_combo
1058                 (_("Open with"),
1059                  _("Enter the command line to open file:\n"
1060                    "(`%s' will be replaced with file name)"),
1061                  prefs_common.mime_open_cmd,
1062                  prefs_common.mime_open_cmd_history,
1063                  TRUE);
1064         if (cmd) {
1065                 mimeview_view_file(filename, partinfo, cmd);
1066                 g_free(prefs_common.mime_open_cmd);
1067                 prefs_common.mime_open_cmd = cmd;
1068                 prefs_common.mime_open_cmd_history =
1069                         add_history(prefs_common.mime_open_cmd_history, cmd);
1070         }
1071
1072         g_free(filename);
1073 }
1074
1075 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1076                                const gchar *cmdline)
1077 {
1078         static gchar *default_image_cmdline = "display '%s'";
1079         static gchar *default_audio_cmdline = "play '%s'";
1080         static gchar *default_html_cmdline = DEFAULT_BROWSER_CMD;
1081         static gchar *mime_cmdline = "metamail -d -b -x -c %s '%s'";
1082         gchar buf[1024];
1083         gchar m_buf[1024];
1084         const gchar *cmd;
1085         const gchar *def_cmd;
1086         const gchar *p;
1087
1088         if (cmdline) {
1089                 cmd = cmdline;
1090                 def_cmd = NULL;
1091         } else if (MIMETYPE_APPLICATION == partinfo->type) {
1092                 return;
1093         } else if (MIMETYPE_IMAGE == partinfo->type) {
1094                 cmd = prefs_common.mime_image_viewer;
1095                 def_cmd = default_image_cmdline;
1096         } else if (MIMETYPE_AUDIO == partinfo->type) {
1097                 cmd = prefs_common.mime_audio_player;
1098                 def_cmd = default_audio_cmdline;
1099         } else if (MIMETYPE_TEXT == partinfo->type && !strcmp(partinfo->subtype, "html")) {
1100                 cmd = prefs_common.uri_cmd;
1101                 def_cmd = default_html_cmdline;
1102         } else {
1103                 gchar *content_type;
1104
1105                 content_type = g_strdup_printf("%s/%s", procmime_get_type_str(partinfo->type), partinfo->subtype);
1106                 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
1107                            content_type, "%s");
1108                 g_free(content_type);
1109                 cmd = m_buf;
1110                 def_cmd = NULL;
1111         }
1112
1113         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
1114             !strchr(p + 2, '%'))
1115                 g_snprintf(buf, sizeof(buf), cmd, filename);
1116         else {
1117                 if (cmd)
1118                         g_warning("MIME viewer command line is invalid: `%s'", cmd);
1119                 if (def_cmd)
1120                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
1121                 else
1122                         return;
1123         }
1124
1125         execute_command_line(buf, TRUE);
1126 }
1127
1128 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1129 {
1130         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1131 }
1132
1133 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1134 {
1135         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1136 }
1137
1138 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1139 {
1140         GSList *mimeview_list, *viewer_list;
1141
1142         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1143                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1144
1145                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1146                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1147                         mimeview->mimeviewer = NULL;
1148                 }
1149
1150                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1151                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1152
1153                         mimeviewer->destroy_viewer(mimeviewer);
1154                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1155                 }
1156         }
1157
1158         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1159 }
1160
1161 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1162 {
1163         gint      num;
1164         MimeInfo *partinfo;
1165
1166         num      = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "icon_number"));
1167         partinfo = gtk_object_get_data(GTK_OBJECT(button), "partinfo");
1168         if (event->button == 1) {
1169                 icon_selected(mimeview, num, partinfo);
1170                 gtk_widget_grab_focus(button);
1171
1172                 if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button)))
1173                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1174                 else
1175                         gtk_signal_emit_stop_by_name(GTK_OBJECT(button), "button_press_event");
1176         }
1177
1178         part_button_pressed(mimeview, event, partinfo);
1179
1180         return TRUE;
1181 }
1182
1183 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
1184 {
1185         GtkCTreeNode *node;
1186         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1187         if (node)
1188                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1189 }
1190
1191 #undef  KEY_PRESS_EVENT_STOP
1192 #define KEY_PRESS_EVENT_STOP() \
1193         if (gtk_signal_n_emissions_by_name \
1194                 (GTK_OBJECT(button), "key_press_event") > 0) { \
1195                 gtk_signal_emit_stop_by_name(GTK_OBJECT(button), \
1196                                              "key_press_event"); \
1197         }
1198 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
1199                              MimeView *mimeview)
1200 {
1201         gint          num;
1202         MimeInfo     *partinfo;
1203         SummaryView  *summaryview;
1204         TextView     *textview;
1205
1206         num      = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "icon_number"));
1207         partinfo = gtk_object_get_data(GTK_OBJECT(button), "partinfo");
1208
1209         if (!event) return FALSE;
1210
1211         textview = mimeview->textview;
1212
1213         switch (event->keyval) {
1214         case GDK_space:
1215                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1216                         /* stop the button being untoggled */
1217                         KEY_PRESS_EVENT_STOP();
1218                         if (textview_scroll_page(textview, FALSE))
1219                                 return TRUE;
1220
1221                         if (icon_list_select_by_number(mimeview, num + 1))
1222                                 return TRUE;
1223                 } else {
1224                         icon_selected(mimeview, num, partinfo);
1225                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1226                         return TRUE;
1227                 }
1228
1229                 break;
1230         case GDK_BackSpace:
1231                 textview_scroll_page(textview, TRUE);
1232                 return TRUE;
1233         case GDK_Return:
1234                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1235                         KEY_PRESS_EVENT_STOP();
1236                         textview_scroll_one_line(textview,
1237                                                  (event->state & GDK_MOD1_MASK) != 0);
1238                         return TRUE;
1239                 } else {
1240                         icon_selected(mimeview, num, partinfo);
1241                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1242                         return TRUE;
1243                 }
1244
1245         case GDK_n:
1246         case GDK_N:
1247                 BREAK_ON_MODIFIER_KEY();
1248                 if (icon_list_select_by_number(mimeview, num + 1)) {
1249                         KEY_PRESS_EVENT_STOP();
1250                         return TRUE;
1251                 }
1252                 break;
1253
1254         case GDK_p:
1255         case GDK_P:
1256                 BREAK_ON_MODIFIER_KEY();
1257                 if (icon_list_select_by_number(mimeview, num - 1)) {
1258                         KEY_PRESS_EVENT_STOP();
1259                         return TRUE;
1260                 }
1261                 break;
1262
1263         case GDK_y:
1264                 BREAK_ON_MODIFIER_KEY();
1265                 KEY_PRESS_EVENT_STOP();
1266                 mimeview_save_as(mimeview);
1267                 return TRUE;
1268         case GDK_t:
1269                 BREAK_ON_MODIFIER_KEY();
1270                 KEY_PRESS_EVENT_STOP();
1271                 mimeview_display_as_text(mimeview);
1272                 return TRUE;
1273         case GDK_l:
1274                 BREAK_ON_MODIFIER_KEY();
1275                 KEY_PRESS_EVENT_STOP();
1276                 mimeview_launch(mimeview);
1277                 return TRUE;
1278         default:
1279                 break;
1280         }
1281
1282         if (!mimeview->messageview->mainwin) return FALSE;
1283         summaryview = mimeview->messageview->mainwin->summaryview;
1284         summary_pass_key_press_event(summaryview, event);
1285         return TRUE;
1286 }
1287
1288 static void toggle_icon(GtkToggleButton *button, MimeView *mimeview)
1289 {
1290         GList *child;
1291
1292         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1293         for (; child != NULL; child = g_list_next(child)) {
1294                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1295                     GTK_TOGGLE_BUTTON(child->data) != button &&
1296                     gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(child->data)))
1297                         gtk_toggle_button_set_active
1298                                 (GTK_TOGGLE_BUTTON(child->data),
1299                                  FALSE);
1300         }
1301 }
1302
1303 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
1304 {
1305         GtkWidget *pixmap;
1306         GtkWidget *vbox;
1307         GtkWidget *button;
1308         gchar *tip;
1309         gchar *desc = NULL;
1310         StockPixmap stockp;
1311
1312         vbox = mimeview->icon_vbox;
1313         mimeview->icon_count++;
1314         button = gtk_toggle_button_new();
1315         gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
1316         gtk_object_set_data(GTK_OBJECT(button), "icon_number",
1317                 GINT_TO_POINTER(mimeview->icon_count));
1318         gtk_object_set_data(GTK_OBJECT(button), "partinfo",
1319                 mimeinfo);
1320
1321         switch (mimeinfo->type) {
1322
1323         case MIMETYPE_TEXT:
1324                 if (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "html"))
1325                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
1326                 else if  (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "enriched"))
1327                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
1328                 else
1329                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
1330                 break;
1331         case MIMETYPE_MESSAGE:
1332                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
1333                 break;
1334         case MIMETYPE_APPLICATION:
1335                 if (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "octet-stream"))
1336                         stockp = STOCK_PIXMAP_MIME_APPLICATION_OCTET_STREAM;
1337                 else
1338                         stockp = STOCK_PIXMAP_MIME_APPLICATION;
1339                 break;
1340         case MIMETYPE_IMAGE:
1341                 stockp = STOCK_PIXMAP_MIME_IMAGE;
1342                 break;
1343         case MIMETYPE_AUDIO:
1344                 stockp = STOCK_PIXMAP_MIME_AUDIO;
1345                 break;
1346         default:
1347                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
1348                 break;
1349         }
1350
1351         pixmap = stock_pixmap_widget(mimeview->mainwin->window, stockp);
1352         gtk_container_add(GTK_CONTAINER(button), pixmap);
1353
1354         if (!desc) {
1355                 if (prefs_common.attach_desc)
1356                         desc = get_part_description(mimeinfo);
1357                 else
1358                         desc = get_part_name(mimeinfo);
1359         }
1360
1361         if (desc && *desc)
1362                 tip = g_strdup_printf("%s\n%s/%s\n%s", desc,
1363                                 procmime_get_type_str(mimeinfo->type),
1364                                 mimeinfo->subtype,
1365                                 to_human_readable(mimeinfo->length));
1366         else
1367                 tip = g_strdup_printf("%s/%s\n%s",
1368                                 procmime_get_type_str(mimeinfo->type),
1369                                 mimeinfo->subtype,
1370                                 to_human_readable(mimeinfo->length));
1371
1372         gtk_tooltips_set_tip(mimeview->tooltips, button, tip, NULL);
1373         g_free(tip);
1374         gtk_widget_show_all(button);
1375         gtk_signal_connect(GTK_OBJECT(button), "button_press_event",
1376                            GTK_SIGNAL_FUNC(icon_clicked_cb), mimeview);
1377         gtk_signal_connect(GTK_OBJECT(button), "key_press_event",
1378                            GTK_SIGNAL_FUNC(icon_key_pressed), mimeview);
1379         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
1380
1381 }
1382
1383 static void icon_list_clear (MimeView *mimeview)
1384 {
1385         GList     *child;
1386         GtkAdjustment *adj;
1387
1388         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1389         for (; child != NULL; child = g_list_next(child)) {
1390                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
1391                                        GTK_WIDGET(child->data));
1392         }
1393         mimeview->icon_count = 0;
1394         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1395         adj->value = adj->lower;
1396         gtk_signal_emit_by_name(GTK_OBJECT (adj), "value_changed");
1397 }
1398
1399 static void icon_list_toggle_by_mime_info(MimeView      *mimeview,
1400                                           MimeInfo      *mimeinfo)
1401 {
1402         GList *child;
1403
1404         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1405         for (; child != NULL; child = g_list_next(child)) {
1406                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1407                     gtk_object_get_data(GTK_OBJECT(child->data),
1408                                         "partinfo") == (gpointer)mimeinfo) {
1409                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
1410                         gtk_toggle_button_set_active
1411                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
1412                 }
1413         }
1414 }
1415
1416 /*!
1417  *\brief        Used to 'click' the next or previous icon.
1418  *
1419  *\return       true if the icon 'number' exists and was selected.
1420  */
1421 static gboolean icon_list_select_by_number(MimeView     *mimeview,
1422                                            gint          number)
1423 {
1424         GList *child;
1425
1426         if (number == 0) return FALSE;
1427         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1428         for (; child != NULL; child = g_list_next(child)) {
1429                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1430                     GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(child->data),
1431                                         "icon_number")) == number) {
1432                         icon_selected(mimeview, number,
1433                                       (MimeInfo*)gtk_object_get_data(GTK_OBJECT(child->data),
1434                                                                      "partinfo"));
1435                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
1436                         gtk_toggle_button_set_active
1437                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
1438                         gtk_widget_grab_focus(GTK_WIDGET(child->data));
1439
1440                         return TRUE;
1441                 }
1442         }
1443         return FALSE;
1444 }
1445
1446 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
1447                                         GtkAllocation *size, MimeView *mimeview)
1448 {
1449         GtkAllocation *mainbox_size;
1450         GtkAllocation *vbox_size;
1451         GtkAllocation *layout_size;
1452         GtkAdjustment *adj;
1453
1454         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1455
1456         mainbox_size = &mimeview->icon_mainbox->allocation;
1457         vbox_size = &mimeview->icon_vbox->allocation;
1458         layout_size = &mimeview->icon_scroll->allocation;
1459
1460         /* centralise the vbox */
1461         gtk_layout_move(GTK_LAYOUT(mimeview->icon_scroll), mimeview->icon_vbox,
1462                         (mainbox_size->width - vbox_size->width)/2, 0);
1463
1464         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
1465                             GTK_LAYOUT(mimeview->icon_scroll)->width,
1466                             MAX(vbox_size->height, layout_size->height));
1467         adj->step_increment = 5;
1468 }
1469
1470 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
1471 {
1472         GtkRequisition size;
1473         gint           width;
1474         g_return_if_fail(mimeinfo != NULL);
1475
1476         while (mimeinfo != NULL) {
1477                 if (mimeinfo->type != MIMETYPE_MULTIPART)
1478                         icon_list_append_icon(mimeview, mimeinfo);
1479                 if (mimeinfo->children != NULL)
1480                         icon_list_create(mimeview, mimeinfo->children);
1481                 mimeinfo = mimeinfo->next;
1482         }
1483         gtk_widget_size_request(mimeview->icon_vbox, &size);
1484         width = size.width + 4;
1485         if (width > mimeview->icon_mainbox->requisition.width) {
1486                 gtk_widget_set_usize(mimeview->icon_mainbox,
1487                                      width, -1);
1488         }
1489
1490 }
1491
1492 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
1493 {
1494         gtk_widget_ref(button);
1495
1496         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1497                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
1498                                         GTK_SHADOW_NONE);
1499                 gtk_widget_hide(mimeview->icon_mainbox);
1500                 gtk_widget_show(mimeview->ctree_mainbox);
1501                 gtk_paned_set_position(GTK_PANED(mimeview->paned), mimeview->oldsize);
1502
1503                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
1504                                         button);
1505                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
1506                                    button, FALSE, FALSE, 0);
1507                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 6);
1508         } else {
1509                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
1510                               GTK_SHADOW_NONE);
1511                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.height;
1512                 gtk_widget_hide(mimeview->ctree_mainbox);
1513                 gtk_widget_show(mimeview->icon_mainbox);
1514                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
1515
1516                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
1517                                         button);
1518                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
1519                                    button, FALSE, FALSE, 0);
1520                 gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
1521                 if (mimeview->opened)
1522                         icon_list_toggle_by_mime_info
1523                                 (mimeview, gtk_ctree_node_get_row_data(GTK_CTREE(mimeview->ctree),
1524                                                                        mimeview->opened));
1525
1526                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 0);
1527         }
1528         gtk_widget_grab_focus(button);
1529         gtk_widget_unref(button);
1530
1531 }
1532
1533 void mimeview_update (MimeView *mimeview) {
1534         if (mimeview && mimeview->mimeinfo) {
1535                 icon_list_clear(mimeview);
1536                 icon_list_create(mimeview, mimeview->mimeinfo);
1537         }
1538 }