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->node->children)
 394                         mimeview_set_multipart_tree(mimeview, (MimeInfo *) mimeinfo->node->children->data, node);
 395                 mimeinfo = mimeinfo->node->next != NULL ? (MimeInfo *) mimeinfo->node->next->data : NULL;
 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 check_signature_cb(GtkWidget *widget, gpointer user_data);
 620
 621 static void update_signature_noticeview(MimeView *mimeview, MimeInfo *mimeinfo)
 622 {
 623         if (privacy_mimeinfo_is_signed(mimeinfo)) {
 624                 gchar *text = NULL, *button_text = NULL;
 625                 GtkSignalFunc func = NULL;
 626                 StockPixmap icon;
 627
 628                 switch (privacy_mimeinfo_get_sig_status(mimeinfo)) {
 629                 case SIGNATURE_UNCHECKED:
 630                         text = _("This part of the message has been signed");
 631                         button_text = _("Check");
 632                         func = check_signature_cb;
 633                         icon = STOCK_PIXMAP_PRIVACY_SIGNED;
 634                         break;
 635                 case SIGNATURE_OK:
 636                         text = _("Signature is valid");
 637                         icon = STOCK_PIXMAP_PRIVACY_PASSED;
 638                         break;
 639                 case SIGNATURE_WARN:
 640                         text = _("Signature is ok");
 641                         icon = STOCK_PIXMAP_PRIVACY_WARN;
 642                         break;
 643                 case SIGNATURE_INVALID:
 644                         text = _("The signature of this part is invalid");
 645                         icon = STOCK_PIXMAP_PRIVACY_FAILED;
 646                         break;
 647                 case SIGNATURE_CHECK_FAILED:
 648                         text = _("Signature check failed");
 649                         button_text = _("Check again");
 650                         func = check_signature_cb;
 651                         icon = STOCK_PIXMAP_PRIVACY_UNKNOWN;
 652                 default:
 653                         break;
 654                 }
 655                 noticeview_set_text(mimeview->siginfoview, text);
 656                 noticeview_set_button_text(mimeview->siginfoview, button_text);
 657                 noticeview_set_button_press_callback(
 658                         mimeview->siginfoview,
 659                         func,
 660                         (gpointer) mimeview);
 661                 noticeview_set_icon(mimeview->siginfoview, icon);
 662                 noticeview_show(mimeview->siginfoview);
 663         } else {
 664                 noticeview_hide(mimeview->siginfoview);
 665         }
 666 }
 667
 668 static void check_signature_cb(GtkWidget *widget, gpointer user_data)
 669 {
 670         MimeView *mimeview = (MimeView *) user_data;
 671         MimeInfo *mimeinfo = mimeview_get_selected_part(mimeview);
 672
 673         privacy_mimeinfo_check_signature(mimeinfo);
 674         update_signature_noticeview(mimeview, mimeinfo);
 675 }
 676
 677 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 678                               MimeView *mimeview)
 679 {
 680         MimeInfo *partinfo;
 681
 682         if (mimeview->opened == node) return;
 683         mimeview->opened = node;
 684         gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
 685
 686         partinfo = gtk_ctree_node_get_row_data(ctree, node);
 687         if (!partinfo) return;
 688
 689         /* ungrab the mouse event */
 690         if (GTK_WIDGET_HAS_GRAB(ctree)) {
 691                 gtk_grab_remove(GTK_WIDGET(ctree));
 692                 if (gdk_pointer_is_grabbed())
 693                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
 694         }
 695
 696         mimeview->textview->default_text = FALSE;
 697
 698         update_signature_noticeview(mimeview, partinfo);
 699
 700         if (!mimeview_show_part(mimeview, partinfo)) {
 701                 switch (partinfo->type) {
 702                 case MIMETYPE_TEXT:
 703                 case MIMETYPE_MESSAGE:
 704                 case MIMETYPE_MULTIPART:
 705                         mimeview_show_message_part(mimeview, partinfo);
 706
 707                         break;
 708                 default:
 709                         mimeview->textview->default_text = TRUE;
 710                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
 711                         textview_show_mime_part(mimeview->textview, partinfo);
 712                         break;
 713                 }
 714         }
 715 }
 716
 717 static void mimeview_start_drag(GtkWidget *widget, gint button,
 718                                 GdkEvent *event, MimeView *mimeview)
 719 {
 720         GdkDragContext *context;
 721         MimeInfo *partinfo;
 722
 723         g_return_if_fail(mimeview != NULL);
 724
 725         partinfo = mimeview_get_selected_part(mimeview);
 726         if (partinfo->filename == NULL && partinfo->name == NULL) return;
 727
 728         context = gtk_drag_begin(widget, mimeview->target_list,
 729                                  GDK_ACTION_COPY, button, event);
 730         gtk_drag_set_icon_default(context);
 731 }
 732
 733 static gint mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
 734                                     MimeView *mimeview)
 735 {
 736         GtkCList *clist = GTK_CLIST(widget);
 737         gint row, column;
 738
 739         if (!event) return FALSE;
 740
 741         if (event->button == 2 || event->button == 3) {
 742                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
 743                                                   &row, &column))
 744                         return FALSE;
 745                 gtk_clist_unselect_all(clist);
 746                 gtk_clist_select_row(clist, row, column);
 747                 gtkut_clist_set_focus_row(clist, row);
 748         }
 749         part_button_pressed(mimeview, event, mimeview_get_selected_part(mimeview));
 750
 751         return TRUE;
 752 }
 753
 754 static void part_button_pressed(MimeView *mimeview, GdkEventButton *event,
 755                                 MimeInfo *partinfo)
 756 {
 757         if (event->button == 2 ||
 758             (event->button == 1 && event->type == GDK_2BUTTON_PRESS)) {
 759                 /* call external program for image, audio or html */
 760                 mimeview_launch(mimeview);
 761         } else if (event->button == 3) {
 762                 if (partinfo && (partinfo->type == MIMETYPE_TEXT ||
 763                                  partinfo->type == MIMETYPE_MESSAGE ||
 764                                  partinfo->type == MIMETYPE_IMAGE ||
 765                                  partinfo->type == MIMETYPE_MULTIPART))
 766                         menu_set_sensitive(mimeview->popupfactory,
 767                                            "/Display as text", FALSE);
 768                 else
 769                         menu_set_sensitive(mimeview->popupfactory,
 770                                            "/Display as text", TRUE);
 771                 if (partinfo &&
 772                     partinfo->type == MIMETYPE_APPLICATION)
 773                         menu_set_sensitive(mimeview->popupfactory,
 774                                            "/Open", FALSE);
 775                 else
 776                         menu_set_sensitive(mimeview->popupfactory,
 777                                            "/Open", TRUE);
 778
 779                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
 780                                     "pop_partinfo", partinfo);
 781
 782                 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
 783                                NULL, NULL, NULL, NULL,
 784                                event->button, event->time);
 785         }
 786 }
 787
 788
 789 void mimeview_pass_key_press_event(MimeView *mimeview, GdkEventKey *event)
 790 {
 791         mimeview_key_pressed(mimeview->ctree, event, mimeview);
 792 }
 793
 794 #define BREAK_ON_MODIFIER_KEY() \
 795         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
 796
 797 #define KEY_PRESS_EVENT_STOP() \
 798         if (gtk_signal_n_emissions_by_name \
 799                 (GTK_OBJECT(ctree), "key_press_event") > 0) { \
 800                 gtk_signal_emit_stop_by_name(GTK_OBJECT(ctree), \
 801                                              "key_press_event"); \
 802         }
 803
 804 static gint mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
 805                                  MimeView *mimeview)
 806 {
 807         SummaryView *summaryview;
 808         GtkCTree *ctree = GTK_CTREE(widget);
 809         GtkCTreeNode *node;
 810
 811         if (!event) return FALSE;
 812         if (!mimeview->opened) return FALSE;
 813
 814         switch (event->keyval) {
 815         case GDK_space:
 816                 if (textview_scroll_page(mimeview->textview, FALSE))
 817                         return TRUE;
 818
 819                 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
 820                 if (node) {
 821                         gtk_sctree_unselect_all(GTK_SCTREE(ctree));
 822                         gtk_sctree_select(GTK_SCTREE(ctree), node);
 823                         return TRUE;
 824                 }
 825                 break;
 826         case GDK_BackSpace:
 827                 textview_scroll_page(mimeview->textview, TRUE);
 828                 return TRUE;
 829         case GDK_Return:
 830                 textview_scroll_one_line(mimeview->textview,
 831                                          (event->state & GDK_MOD1_MASK) != 0);
 832                 return TRUE;
 833         case GDK_n:
 834         case GDK_N:
 835                 BREAK_ON_MODIFIER_KEY();
 836                 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
 837                 KEY_PRESS_EVENT_STOP();
 838
 839                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 840                                         GTK_SCROLL_STEP_FORWARD, 0.0);
 841                 return TRUE;
 842         case GDK_p:
 843         case GDK_P:
 844                 BREAK_ON_MODIFIER_KEY();
 845                 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
 846                 KEY_PRESS_EVENT_STOP();
 847
 848                 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
 849                                         GTK_SCROLL_STEP_BACKWARD, 0.0);
 850                 return TRUE;
 851         case GDK_y:
 852                 BREAK_ON_MODIFIER_KEY();
 853                 KEY_PRESS_EVENT_STOP();
 854                 mimeview_save_as(mimeview);
 855                 return TRUE;
 856         case GDK_t:
 857                 BREAK_ON_MODIFIER_KEY();
 858                 KEY_PRESS_EVENT_STOP();
 859                 mimeview_display_as_text(mimeview);
 860                 return TRUE;
 861         case GDK_l:
 862                 BREAK_ON_MODIFIER_KEY();
 863                 KEY_PRESS_EVENT_STOP();
 864                 mimeview_launch(mimeview);
 865                 return TRUE;
 866         default:
 867                 break;
 868         }
 869
 870         if (!mimeview->messageview->mainwin) return FALSE;
 871         summaryview = mimeview->messageview->mainwin->summaryview;
 872         summary_pass_key_press_event(summaryview, event);
 873         return TRUE;
 874 }
 875
 876 static void mimeview_drag_data_get(GtkWidget        *widget,
 877                                    GdkDragContext   *drag_context,
 878                                    GtkSelectionData *selection_data,
 879                                    guint             info,
 880                                    guint             time,
 881                                    MimeView         *mimeview)
 882 {
 883         gchar *filename, *uriname;
 884         MimeInfo *partinfo;
 885
 886         if (!mimeview->opened) return;
 887         if (!mimeview->file) return;
 888
 889         partinfo = mimeview_get_selected_part(mimeview);
 890         if (!partinfo) return;
 891         if (!partinfo->filename && !partinfo->name) return;
 892
 893         filename = partinfo->filename ? partinfo->filename : partinfo->name;
 894         filename = g_basename(filename);
 895         if (*filename == '\0') return;
 896
 897         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
 898                                filename, NULL);
 899
 900         if (procmime_get_part(filename, partinfo) < 0)
 901                 alertpanel_error
 902                         (_("Can't save the part of multipart message."));
 903
 904         uriname = g_strconcat("file:/", filename, NULL);
 905         gtk_selection_data_set(selection_data, selection_data->target, 8,
 906                                uriname, strlen(uriname));
 907
 908         g_free(uriname);
 909         g_free(filename);
 910 }
 911
 912 static void mimeview_save_all(MimeView *mimeview)
 913 {
 914         gchar *dirname;
 915         gchar *defname = NULL;
 916         MimeInfo *partinfo;
 917         MimeInfo *attachment;
 918         gchar buf[1024];
 919
 920         if (!mimeview->opened) return;
 921         if (!mimeview->file) return;
 922
 923         partinfo = mimeview_get_selected_part(mimeview);
 924         g_return_if_fail(partinfo != NULL);
 925
 926         dirname = filesel_select_file(_("Save as"), defname);
 927         if (!dirname) return;
 928
 929         if (!is_dir_exist (dirname)) {
 930                 alertpanel_error(_("`%s' is not a directory."),
 931                                  dirname);
 932                 g_free (dirname);
 933                 return;
 934         }
 935
 936         { /* add a / after the dirname, in case the user didn't */
 937                 gchar *dirname_tmp = NULL;
 938                 int dirname_last_char = strlen (dirname) - 1;
 939
 940                 if (dirname[dirname_last_char] != G_DIR_SEPARATOR) {
 941                         dirname_tmp = g_strconcat (dirname, G_DIR_SEPARATOR_S, NULL);
 942                         g_free (dirname);
 943                         dirname = dirname_tmp;
 944                 }
 945         }
 946
 947         /* return to first children */
 948         if (partinfo->node->parent->children == NULL) return;  /* multipart container? */
 949         attachment = partinfo->node->parent->children->next != NULL ?
 950             (MimeInfo *) partinfo->node->parent->children->next->data : NULL;
 951         /* for each attachment, extract it in the selected dir. */
 952         while (attachment != NULL) {
 953                 static guint subst_cnt = 1;
 954                 gchar *attachdir;
 955                 gchar *attachname = g_strdup(get_part_name(attachment));
 956                 AlertValue aval = G_ALERTDEFAULT;
 957                 gchar *res;
 958
 959                 if (!attachname || !strlen(attachname))
 960                         attachname = g_strdup_printf("noname.%d",subst_cnt++);
 961                 subst_chars(attachname, ":?*&|<>\t\r\n", '_');
 962                 g_snprintf(buf, sizeof(buf), "%s%s",
 963                            dirname,
 964                            (attachname[0] == G_DIR_SEPARATOR)
 965                            ? &attachname[1]
 966                            : attachname);
 967                 subst_chars(buf, "/\\", G_DIR_SEPARATOR);
 968                 attachdir = g_dirname(buf);
 969                 make_dir_hier(attachdir);
 970                 g_free(attachdir);
 971
 972                 if (is_file_exist(buf)) {
 973                         res = g_strdup_printf(_("Overwrite existing file '%s'?"),
 974                                               attachname);
 975                         aval = alertpanel(_("Overwrite"), res, _("OK"),
 976                                           _("Cancel"), NULL);
 977                         g_free(res);
 978                 }
 979                 g_free(attachname);
 980
 981                 if ((G_ALERTDEFAULT != aval) || (procmime_get_part(buf, attachment) < 0))
 982                         alertpanel_error(_("Can't save the part of multipart message."));
 983                 attachment = attachment->node->next != NULL ? (MimeInfo *) attachment->node->next->data : NULL;
 984         }
 985 }
 986
 987 static void mimeview_display_as_text(MimeView *mimeview)
 988 {
 989         MimeInfo *partinfo;
 990
 991         if (!mimeview->opened) return;
 992
 993         partinfo = mimeview_get_selected_part(mimeview);
 994         if (!partinfo)  {
 995                 partinfo = (MimeInfo *) gtk_object_get_data
 996                         (GTK_OBJECT(mimeview->popupmenu),
 997                          "pop_partinfo");
 998                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
 999                                     "pop_partinfo", NULL);
1000
1001         }
1002         g_return_if_fail(partinfo != NULL);
1003         mimeview_show_message_part(mimeview, partinfo);
1004 }
1005
1006 static void mimeview_save_as(MimeView *mimeview)
1007 {
1008         gchar *filename;
1009         gchar *defname = NULL;
1010         MimeInfo *partinfo;
1011         gchar *res;
1012
1013         if (!mimeview->opened) return;
1014         if (!mimeview->file) return;
1015
1016         partinfo = mimeview_get_selected_part(mimeview);
1017         if (!partinfo) {
1018                 partinfo = (MimeInfo *) gtk_object_get_data
1019                         (GTK_OBJECT(mimeview->popupmenu),
1020                          "pop_partinfo");
1021                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1022                                     "pop_partinfo", NULL);
1023         }
1024         g_return_if_fail(partinfo != NULL);
1025
1026         if (partinfo->filename)
1027                 defname = partinfo->filename;
1028         else if (partinfo->name) {
1029                 Xstrdup_a(defname, partinfo->name, return);
1030                 subst_for_filename(defname);
1031         }
1032
1033         filename = filesel_select_file(_("Save as"), defname);
1034         if (!filename) return;
1035         if (is_file_exist(filename)) {
1036                 AlertValue aval;
1037                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1038                                       filename);
1039                 aval = alertpanel(_("Overwrite"), res, _("OK"),
1040                                   _("Cancel"), NULL);
1041                 g_free(res);
1042                 if (G_ALERTDEFAULT != aval) return;
1043         }
1044
1045         if (procmime_get_part(filename, partinfo) < 0)
1046                 alertpanel_error
1047                         (_("Can't save the part of multipart message."));
1048 }
1049
1050 static void mimeview_launch(MimeView *mimeview)
1051 {
1052         MimeInfo *partinfo;
1053         gchar *filename;
1054
1055         if (!mimeview->opened) return;
1056         if (!mimeview->file) return;
1057
1058         partinfo = mimeview_get_selected_part(mimeview);
1059         if (!partinfo) {
1060                 partinfo = (MimeInfo *) gtk_object_get_data
1061                         (GTK_OBJECT(mimeview->popupmenu),
1062                          "pop_partinfo");
1063                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1064                                     "pop_partinfo", NULL);
1065         }
1066         g_return_if_fail(partinfo != NULL);
1067
1068         filename = procmime_get_tmp_file_name(partinfo);
1069
1070         if (procmime_get_part(filename, partinfo) < 0)
1071                 alertpanel_error
1072                         (_("Can't save the part of multipart message."));
1073         else
1074                 mimeview_view_file(filename, partinfo, NULL);
1075
1076         g_free(filename);
1077 }
1078
1079 static void mimeview_open_with(MimeView *mimeview)
1080 {
1081         MimeInfo *partinfo;
1082         gchar *filename;
1083         gchar *cmd;
1084
1085         if (!mimeview->opened) return;
1086         if (!mimeview->file) return;
1087
1088         partinfo = mimeview_get_selected_part(mimeview);
1089         if (!partinfo) {
1090                 partinfo = (MimeInfo *) gtk_object_get_data
1091                         (GTK_OBJECT(mimeview->popupmenu),
1092                          "pop_partinfo");
1093                 gtk_object_set_data(GTK_OBJECT(mimeview->popupmenu),
1094                                     "pop_partinfo", NULL);
1095         }
1096         g_return_if_fail(partinfo != NULL);
1097
1098         filename = procmime_get_tmp_file_name(partinfo);
1099
1100         if (procmime_get_part(filename, partinfo) < 0) {
1101                 alertpanel_error
1102                         (_("Can't save the part of multipart message."));
1103                 g_free(filename);
1104                 return;
1105         }
1106
1107         if (!prefs_common.mime_open_cmd_history)
1108                 prefs_common.mime_open_cmd_history =
1109                         add_history(NULL, prefs_common.mime_open_cmd);
1110
1111         cmd = input_dialog_combo
1112                 (_("Open with"),
1113                  _("Enter the command line to open file:\n"
1114                    "(`%s' will be replaced with file name)"),
1115                  prefs_common.mime_open_cmd,
1116                  prefs_common.mime_open_cmd_history,
1117                  TRUE);
1118         if (cmd) {
1119                 mimeview_view_file(filename, partinfo, cmd);
1120                 g_free(prefs_common.mime_open_cmd);
1121                 prefs_common.mime_open_cmd = cmd;
1122                 prefs_common.mime_open_cmd_history =
1123                         add_history(prefs_common.mime_open_cmd_history, cmd);
1124         }
1125
1126         g_free(filename);
1127 }
1128
1129 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo,
1130                                const gchar *cmdline)
1131 {
1132         static gchar *default_image_cmdline = "display '%s'";
1133         static gchar *default_audio_cmdline = "play '%s'";
1134         static gchar *default_html_cmdline = DEFAULT_BROWSER_CMD;
1135         static gchar *mime_cmdline = "metamail -d -b -x -c %s '%s'";
1136         gchar buf[1024];
1137         gchar m_buf[1024];
1138         const gchar *cmd;
1139         const gchar *def_cmd;
1140         const gchar *p;
1141
1142         if (cmdline) {
1143                 cmd = cmdline;
1144                 def_cmd = NULL;
1145         } else if (MIMETYPE_APPLICATION == partinfo->type) {
1146                 return;
1147         } else if (MIMETYPE_IMAGE == partinfo->type) {
1148                 cmd = prefs_common.mime_image_viewer;
1149                 def_cmd = default_image_cmdline;
1150         } else if (MIMETYPE_AUDIO == partinfo->type) {
1151                 cmd = prefs_common.mime_audio_player;
1152                 def_cmd = default_audio_cmdline;
1153         } else if (MIMETYPE_TEXT == partinfo->type && !strcmp(partinfo->subtype, "html")) {
1154                 cmd = prefs_common.uri_cmd;
1155                 def_cmd = default_html_cmdline;
1156         } else {
1157                 gchar *content_type;
1158
1159                 content_type = g_strdup_printf("%s/%s", procmime_get_type_str(partinfo->type), partinfo->subtype);
1160                 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
1161                            content_type, "%s");
1162                 g_free(content_type);
1163                 cmd = m_buf;
1164                 def_cmd = NULL;
1165         }
1166
1167         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
1168             !strchr(p + 2, '%'))
1169                 g_snprintf(buf, sizeof(buf), cmd, filename);
1170         else {
1171                 if (cmd)
1172                         g_warning("MIME viewer command line is invalid: `%s'", cmd);
1173                 if (def_cmd)
1174                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
1175                 else
1176                         return;
1177         }
1178
1179         execute_command_line(buf, TRUE);
1180 }
1181
1182 void mimeview_register_viewer_factory(MimeViewerFactory *factory)
1183 {
1184         mimeviewer_factories = g_slist_append(mimeviewer_factories, factory);
1185 }
1186
1187 static gint cmp_viewer_by_factroy(gconstpointer a, gconstpointer b)
1188 {
1189         return ((MimeViewer *) a)->factory == (MimeViewerFactory *) b ? 0 : -1;
1190 }
1191
1192 void mimeview_unregister_viewer_factory(MimeViewerFactory *factory)
1193 {
1194         GSList *mimeview_list, *viewer_list;
1195
1196         for (mimeview_list = mimeviews; mimeview_list != NULL; mimeview_list = g_slist_next(mimeview_list)) {
1197                 MimeView *mimeview = (MimeView *) mimeview_list->data;
1198
1199                 if (mimeview->mimeviewer && mimeview->mimeviewer->factory == factory) {
1200                         mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
1201                         mimeview->mimeviewer = NULL;
1202                 }
1203
1204                 while ((viewer_list = g_slist_find_custom(mimeview->viewers, factory, cmp_viewer_by_factroy)) != NULL) {
1205                         MimeViewer *mimeviewer = (MimeViewer *) viewer_list->data;
1206
1207                         mimeviewer->destroy_viewer(mimeviewer);
1208                         mimeview->viewers = g_slist_remove(mimeview->viewers, mimeviewer);
1209                 }
1210         }
1211
1212         mimeviewer_factories = g_slist_remove(mimeviewer_factories, factory);
1213 }
1214
1215 static gboolean icon_clicked_cb (GtkWidget *button, GdkEventButton *event, MimeView *mimeview)
1216 {
1217         gint      num;
1218         MimeInfo *partinfo;
1219
1220         num      = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "icon_number"));
1221         partinfo = gtk_object_get_data(GTK_OBJECT(button), "partinfo");
1222         if (event->button == 1) {
1223                 icon_selected(mimeview, num, partinfo);
1224                 gtk_widget_grab_focus(button);
1225
1226                 if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button)))
1227                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1228                 else
1229                         gtk_signal_emit_stop_by_name(GTK_OBJECT(button), "button_press_event");
1230         }
1231
1232         part_button_pressed(mimeview, event, partinfo);
1233
1234         return TRUE;
1235 }
1236
1237 static void icon_selected (MimeView *mimeview, gint num, MimeInfo *partinfo)
1238 {
1239         GtkCTreeNode *node;
1240         node = gtk_ctree_find_by_row_data(GTK_CTREE(mimeview->ctree), NULL, partinfo);
1241         if (node)
1242                 gtk_ctree_select(GTK_CTREE(mimeview->ctree), node);
1243 }
1244
1245 #undef  KEY_PRESS_EVENT_STOP
1246 #define KEY_PRESS_EVENT_STOP() \
1247         if (gtk_signal_n_emissions_by_name \
1248                 (GTK_OBJECT(button), "key_press_event") > 0) { \
1249                 gtk_signal_emit_stop_by_name(GTK_OBJECT(button), \
1250                                              "key_press_event"); \
1251         }
1252 static gint icon_key_pressed(GtkWidget *button, GdkEventKey *event,
1253                              MimeView *mimeview)
1254 {
1255         gint          num;
1256         MimeInfo     *partinfo;
1257         SummaryView  *summaryview;
1258         TextView     *textview;
1259
1260         num      = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(button), "icon_number"));
1261         partinfo = gtk_object_get_data(GTK_OBJECT(button), "partinfo");
1262
1263         if (!event) return FALSE;
1264
1265         textview = mimeview->textview;
1266
1267         switch (event->keyval) {
1268         case GDK_space:
1269                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1270                         /* stop the button being untoggled */
1271                         KEY_PRESS_EVENT_STOP();
1272                         if (textview_scroll_page(textview, FALSE))
1273                                 return TRUE;
1274
1275                         if (icon_list_select_by_number(mimeview, num + 1))
1276                                 return TRUE;
1277                 } else {
1278                         icon_selected(mimeview, num, partinfo);
1279                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1280                         return TRUE;
1281                 }
1282
1283                 break;
1284         case GDK_BackSpace:
1285                 textview_scroll_page(textview, TRUE);
1286                 return TRUE;
1287         case GDK_Return:
1288                 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1289                         KEY_PRESS_EVENT_STOP();
1290                         textview_scroll_one_line(textview,
1291                                                  (event->state & GDK_MOD1_MASK) != 0);
1292                         return TRUE;
1293                 } else {
1294                         icon_selected(mimeview, num, partinfo);
1295                         toggle_icon(GTK_TOGGLE_BUTTON(button), mimeview);
1296                         return TRUE;
1297                 }
1298
1299         case GDK_n:
1300         case GDK_N:
1301                 BREAK_ON_MODIFIER_KEY();
1302                 if (icon_list_select_by_number(mimeview, num + 1)) {
1303                         KEY_PRESS_EVENT_STOP();
1304                         return TRUE;
1305                 }
1306                 break;
1307
1308         case GDK_p:
1309         case GDK_P:
1310                 BREAK_ON_MODIFIER_KEY();
1311                 if (icon_list_select_by_number(mimeview, num - 1)) {
1312                         KEY_PRESS_EVENT_STOP();
1313                         return TRUE;
1314                 }
1315                 break;
1316
1317         case GDK_y:
1318                 BREAK_ON_MODIFIER_KEY();
1319                 KEY_PRESS_EVENT_STOP();
1320                 mimeview_save_as(mimeview);
1321                 return TRUE;
1322         case GDK_t:
1323                 BREAK_ON_MODIFIER_KEY();
1324                 KEY_PRESS_EVENT_STOP();
1325                 mimeview_display_as_text(mimeview);
1326                 return TRUE;
1327         case GDK_l:
1328                 BREAK_ON_MODIFIER_KEY();
1329                 KEY_PRESS_EVENT_STOP();
1330                 mimeview_launch(mimeview);
1331                 return TRUE;
1332         default:
1333                 break;
1334         }
1335
1336         if (!mimeview->messageview->mainwin) return FALSE;
1337         summaryview = mimeview->messageview->mainwin->summaryview;
1338         summary_pass_key_press_event(summaryview, event);
1339         return TRUE;
1340 }
1341
1342 static void toggle_icon(GtkToggleButton *button, MimeView *mimeview)
1343 {
1344         GList *child;
1345
1346         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1347         for (; child != NULL; child = g_list_next(child)) {
1348                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1349                     GTK_TOGGLE_BUTTON(child->data) != button &&
1350                     gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(child->data)))
1351                         gtk_toggle_button_set_active
1352                                 (GTK_TOGGLE_BUTTON(child->data),
1353                                  FALSE);
1354         }
1355 }
1356
1357 static void icon_list_append_icon (MimeView *mimeview, MimeInfo *mimeinfo)
1358 {
1359         GtkWidget *pixmap;
1360         GtkWidget *vbox;
1361         GtkWidget *button;
1362         gchar *tip;
1363         gchar *desc = NULL;
1364         StockPixmap stockp;
1365
1366         vbox = mimeview->icon_vbox;
1367         mimeview->icon_count++;
1368         button = gtk_toggle_button_new();
1369         gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
1370         gtk_object_set_data(GTK_OBJECT(button), "icon_number",
1371                 GINT_TO_POINTER(mimeview->icon_count));
1372         gtk_object_set_data(GTK_OBJECT(button), "partinfo",
1373                 mimeinfo);
1374
1375         switch (mimeinfo->type) {
1376
1377         case MIMETYPE_TEXT:
1378                 if (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "html"))
1379                         stockp = STOCK_PIXMAP_MIME_TEXT_HTML;
1380                 else if  (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "enriched"))
1381                         stockp = STOCK_PIXMAP_MIME_TEXT_ENRICHED;
1382                 else
1383                         stockp = STOCK_PIXMAP_MIME_TEXT_PLAIN;
1384                 break;
1385         case MIMETYPE_MESSAGE:
1386                 stockp = STOCK_PIXMAP_MIME_MESSAGE;
1387                 break;
1388         case MIMETYPE_APPLICATION:
1389                 if (mimeinfo->subtype && !g_strcasecmp(mimeinfo->subtype, "octet-stream"))
1390                         stockp = STOCK_PIXMAP_MIME_APPLICATION_OCTET_STREAM;
1391                 else
1392                         stockp = STOCK_PIXMAP_MIME_APPLICATION;
1393                 break;
1394         case MIMETYPE_IMAGE:
1395                 stockp = STOCK_PIXMAP_MIME_IMAGE;
1396                 break;
1397         case MIMETYPE_AUDIO:
1398                 stockp = STOCK_PIXMAP_MIME_AUDIO;
1399                 break;
1400         default:
1401                 stockp = STOCK_PIXMAP_MIME_UNKNOWN;
1402                 break;
1403         }
1404
1405         pixmap = stock_pixmap_widget(mimeview->mainwin->window, stockp);
1406         gtk_container_add(GTK_CONTAINER(button), pixmap);
1407
1408         if (!desc) {
1409                 if (prefs_common.attach_desc)
1410                         desc = get_part_description(mimeinfo);
1411                 else
1412                         desc = get_part_name(mimeinfo);
1413         }
1414
1415         if (desc && *desc)
1416                 tip = g_strdup_printf("%s\n%s/%s\n%s", desc,
1417                                 procmime_get_type_str(mimeinfo->type),
1418                                 mimeinfo->subtype,
1419                                 to_human_readable(mimeinfo->length));
1420         else
1421                 tip = g_strdup_printf("%s/%s\n%s",
1422                                 procmime_get_type_str(mimeinfo->type),
1423                                 mimeinfo->subtype,
1424                                 to_human_readable(mimeinfo->length));
1425
1426         gtk_tooltips_set_tip(mimeview->tooltips, button, tip, NULL);
1427         g_free(tip);
1428         gtk_widget_show_all(button);
1429         gtk_signal_connect(GTK_OBJECT(button), "button_press_event",
1430                            GTK_SIGNAL_FUNC(icon_clicked_cb), mimeview);
1431         gtk_signal_connect(GTK_OBJECT(button), "key_press_event",
1432                            GTK_SIGNAL_FUNC(icon_key_pressed), mimeview);
1433         gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
1434
1435 }
1436
1437 static void icon_list_clear (MimeView *mimeview)
1438 {
1439         GList     *child;
1440         GtkAdjustment *adj;
1441
1442         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1443         for (; child != NULL; child = g_list_next(child)) {
1444                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_vbox),
1445                                        GTK_WIDGET(child->data));
1446         }
1447         mimeview->icon_count = 0;
1448         adj  = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1449         adj->value = adj->lower;
1450         gtk_signal_emit_by_name(GTK_OBJECT (adj), "value_changed");
1451 }
1452
1453 static void icon_list_toggle_by_mime_info(MimeView      *mimeview,
1454                                           MimeInfo      *mimeinfo)
1455 {
1456         GList *child;
1457
1458         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1459         for (; child != NULL; child = g_list_next(child)) {
1460                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1461                     gtk_object_get_data(GTK_OBJECT(child->data),
1462                                         "partinfo") == (gpointer)mimeinfo) {
1463                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
1464                         gtk_toggle_button_set_active
1465                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
1466                 }
1467         }
1468 }
1469
1470 /*!
1471  *\brief        Used to 'click' the next or previous icon.
1472  *
1473  *\return       true if the icon 'number' exists and was selected.
1474  */
1475 static gboolean icon_list_select_by_number(MimeView     *mimeview,
1476                                            gint          number)
1477 {
1478         GList *child;
1479
1480         if (number == 0) return FALSE;
1481         child = gtk_container_children(GTK_CONTAINER(mimeview->icon_vbox));
1482         for (; child != NULL; child = g_list_next(child)) {
1483                 if (GTK_IS_TOGGLE_BUTTON(child->data) &&
1484                     GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(child->data),
1485                                         "icon_number")) == number) {
1486                         icon_selected(mimeview, number,
1487                                       (MimeInfo*)gtk_object_get_data(GTK_OBJECT(child->data),
1488                                                                      "partinfo"));
1489                         toggle_icon(GTK_TOGGLE_BUTTON(child->data), mimeview);
1490                         gtk_toggle_button_set_active
1491                                 (GTK_TOGGLE_BUTTON(child->data), TRUE);
1492                         gtk_widget_grab_focus(GTK_WIDGET(child->data));
1493
1494                         return TRUE;
1495                 }
1496         }
1497         return FALSE;
1498 }
1499
1500 static void icon_scroll_size_allocate_cb(GtkWidget *widget,
1501                                         GtkAllocation *size, MimeView *mimeview)
1502 {
1503         GtkAllocation *mainbox_size;
1504         GtkAllocation *vbox_size;
1505         GtkAllocation *layout_size;
1506         GtkAdjustment *adj;
1507
1508         adj = gtk_layout_get_vadjustment(GTK_LAYOUT(mimeview->icon_scroll));
1509
1510         mainbox_size = &mimeview->icon_mainbox->allocation;
1511         vbox_size = &mimeview->icon_vbox->allocation;
1512         layout_size = &mimeview->icon_scroll->allocation;
1513
1514         /* centralise the vbox */
1515         gtk_layout_move(GTK_LAYOUT(mimeview->icon_scroll), mimeview->icon_vbox,
1516                         (mainbox_size->width - vbox_size->width)/2, 0);
1517
1518         gtk_layout_set_size(GTK_LAYOUT(mimeview->icon_scroll),
1519                             GTK_LAYOUT(mimeview->icon_scroll)->width,
1520                             MAX(vbox_size->height, layout_size->height));
1521         adj->step_increment = 5;
1522 }
1523
1524 static void icon_list_create(MimeView *mimeview, MimeInfo *mimeinfo)
1525 {
1526         GtkRequisition size;
1527         gint           width;
1528         g_return_if_fail(mimeinfo != NULL);
1529
1530         while (mimeinfo != NULL) {
1531                 if (mimeinfo->type != MIMETYPE_MULTIPART)
1532                         icon_list_append_icon(mimeview, mimeinfo);
1533                 if (mimeinfo->node->children != NULL)
1534                         icon_list_create(mimeview, (MimeInfo *) mimeinfo->node->children->data);
1535                 mimeinfo = mimeinfo->node->next != NULL ? (MimeInfo *) mimeinfo->node->next->data : NULL;
1536         }
1537         gtk_widget_size_request(mimeview->icon_vbox, &size);
1538         width = size.width + 4;
1539         if (width > mimeview->icon_mainbox->requisition.width) {
1540                 gtk_widget_set_usize(mimeview->icon_mainbox,
1541                                      width, -1);
1542         }
1543
1544 }
1545
1546 static void mime_toggle_button_cb (GtkWidget *button, MimeView *mimeview)
1547 {
1548         gtk_widget_ref(button);
1549
1550         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
1551                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_RIGHT,
1552                                         GTK_SHADOW_NONE);
1553                 gtk_widget_hide(mimeview->icon_mainbox);
1554                 gtk_widget_show(mimeview->ctree_mainbox);
1555                 gtk_paned_set_position(GTK_PANED(mimeview->paned), mimeview->oldsize);
1556
1557                 gtkut_container_remove(GTK_CONTAINER(mimeview->icon_mainbox),
1558                                         button);
1559                 gtk_box_pack_end(GTK_BOX(mimeview->ctree_mainbox),
1560                                    button, FALSE, FALSE, 0);
1561                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 6);
1562         } else {
1563                 gtk_arrow_set(GTK_ARROW(GTK_BIN(button)->child), GTK_ARROW_LEFT,
1564                               GTK_SHADOW_NONE);
1565                 mimeview->oldsize = mimeview->ctree_mainbox->allocation.height;
1566                 gtk_widget_hide(mimeview->ctree_mainbox);
1567                 gtk_widget_show(mimeview->icon_mainbox);
1568                 gtk_paned_set_position(GTK_PANED(mimeview->paned), 0);
1569
1570                 gtkut_container_remove(GTK_CONTAINER(mimeview->ctree_mainbox),
1571                                         button);
1572                 gtk_box_pack_start(GTK_BOX(mimeview->icon_mainbox),
1573                                    button, FALSE, FALSE, 0);
1574                 gtk_box_reorder_child(GTK_BOX(button->parent), button, 0);
1575                 if (mimeview->opened)
1576                         icon_list_toggle_by_mime_info
1577                                 (mimeview, gtk_ctree_node_get_row_data(GTK_CTREE(mimeview->ctree),
1578                                                                        mimeview->opened));
1579
1580                 gtk_paned_set_gutter_size(GTK_PANED(mimeview->paned), 0);
1581         }
1582         gtk_widget_grab_focus(button);
1583         gtk_widget_unref(button);
1584
1585 }
1586
1587 void mimeview_update (MimeView *mimeview) {
1588         if (mimeview && mimeview->mimeinfo) {
1589                 icon_list_clear(mimeview);
1590                 icon_list_create(mimeview, mimeview->mimeinfo);
1591         }
1592 }