src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gdk/gdk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <gtk/gtkvbox.h>
  31 #include <gtk/gtkscrolledwindow.h>
  32 #include <gtk/gtksignal.h>
  33 #include <stdio.h>
  34 #include <ctype.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #include <errno.h>
  38 #include <sys/wait.h>
  39 #if HAVE_LIBCOMPFACE
  40 #  include <compface.h>
  41 #endif
  42
  43 #if HAVE_LIBCOMPFACE
  44 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  45 #endif
  46
  47 #include "main.h"
  48 #include "summaryview.h"
  49 #include "procheader.h"
  50 #include "prefs_common.h"
  51 #include "codeconv.h"
  52 #include "utils.h"
  53 #include "gtkutils.h"
  54 #include "procmime.h"
  55 #include "html.h"
  56 #include "enriched.h"
  57 #include "compose.h"
  58 #include "addressbook.h"
  59 #include "displayheader.h"
  60 #include "account.h"
  61 #include "mimeview.h"
  62 #include "alertpanel.h"
  63 #include "menu.h"
  64 #include "image_viewer.h"
  65 #include "filesel.h"
  66 #include "base64.h"
  67
  68 struct _ClickableText
  69 {
  70         gchar *uri;
  71
  72         gchar *filename;
  73
  74         gpointer data;
  75
  76         guint start;
  77         guint end;
  78
  79         gboolean is_quote;
  80         gint quote_level;
  81         gboolean q_expanded;
  82         gchar *fg_color;
  83 };
  84
  85 gint previousquotelevel = -1;
  86
  87 static GdkColor quote_colors[3] = {
  88         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  89         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  90         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  91 };
  92
  93 static GdkColor quote_bgcolors[3] = {
  94         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  95         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  96         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  97 };
  98 static GdkColor signature_color = {
  99         (gulong)0,
 100         (gushort)0x7fff,
 101         (gushort)0x7fff,
 102         (gushort)0x7fff
 103 };
 104
 105 static GdkColor uri_color = {
 106         (gulong)0,
 107         (gushort)0,
 108         (gushort)0,
 109         (gushort)0
 110 };
 111
 112 static GdkColor emphasis_color = {
 113         (gulong)0,
 114         (gushort)0,
 115         (gushort)0,
 116         (gushort)0xcfff
 117 };
 118
 119 static GdkCursor *hand_cursor = NULL;
 120 static GdkCursor *text_cursor = NULL;
 121 static GdkCursor *watch_cursor= NULL;
 122
 123 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 124 {       if (textview->messageview->statusbar)                               \
 125         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 126                            textview->messageview->statusbar_cid, str);      \
 127 }
 128
 129 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 130 {       if (textview->messageview->statusbar)                              \
 131         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 132                           textview->messageview->statusbar_cid);           \
 133 }
 134
 135 static void textview_show_ertf          (TextView       *textview,
 136                                          FILE           *fp,
 137                                          CodeConverter  *conv);
 138 static void textview_add_part           (TextView       *textview,
 139                                          MimeInfo       *mimeinfo);
 140 static void textview_add_parts          (TextView       *textview,
 141                                          MimeInfo       *mimeinfo);
 142 static void textview_write_body         (TextView       *textview,
 143                                          MimeInfo       *mimeinfo);
 144 static void textview_show_html          (TextView       *textview,
 145                                          FILE           *fp,
 146                                          CodeConverter  *conv);
 147
 148 static void textview_write_line         (TextView       *textview,
 149                                          const gchar    *str,
 150                                          CodeConverter  *conv);
 151 static void textview_write_link         (TextView       *textview,
 152                                          const gchar    *str,
 153                                          const gchar    *uri,
 154                                          CodeConverter  *conv);
 155
 156 static GPtrArray *textview_scan_header  (TextView       *textview,
 157                                          FILE           *fp);
 158 static void textview_show_header        (TextView       *textview,
 159                                          GPtrArray      *headers);
 160
 161 static gint textview_key_pressed                (GtkWidget      *widget,
 162                                                  GdkEventKey    *event,
 163                                                  TextView       *textview);
 164 static gboolean textview_motion_notify          (GtkWidget      *widget,
 165                                                  GdkEventMotion *motion,
 166                                                  TextView       *textview);
 167 static gboolean textview_leave_notify           (GtkWidget        *widget,
 168                                                  GdkEventCrossing *event,
 169                                                  TextView         *textview);
 170 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 171                                                  GdkEventVisibility *event,
 172                                                  TextView       *textview);
 173 static void textview_uri_update                 (TextView       *textview,
 174                                                  gint           x,
 175                                                  gint           y);
 176 static gboolean textview_get_uri_range          (TextView       *textview,
 177                                                  GtkTextIter    *iter,
 178                                                  GtkTextTag     *tag,
 179                                                  GtkTextIter    *start_iter,
 180                                                  GtkTextIter    *end_iter);
 181 static ClickableText *textview_get_uri_from_range       (TextView       *textview,
 182                                                  GtkTextIter    *iter,
 183                                                  GtkTextTag     *tag,
 184                                                  GtkTextIter    *start_iter,
 185                                                  GtkTextIter    *end_iter);
 186 static ClickableText *textview_get_uri          (TextView       *textview,
 187                                                  GtkTextIter    *iter,
 188                                                  GtkTextTag     *tag);
 189 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 190                                                  GObject        *obj,
 191                                                  GdkEvent       *event,
 192                                                  GtkTextIter    *iter,
 193                                                  TextView       *textview);
 194
 195 static void textview_smooth_scroll_do           (TextView       *textview,
 196                                                  gfloat          old_value,
 197                                                  gfloat          last_value,
 198                                                  gint            step);
 199 static void textview_smooth_scroll_one_line     (TextView       *textview,
 200                                                  gboolean        up);
 201 static gboolean textview_smooth_scroll_page     (TextView       *textview,
 202                                                  gboolean        up);
 203
 204 static gboolean textview_uri_security_check     (TextView       *textview,
 205                                                  ClickableText  *uri);
 206 static void textview_uri_list_remove_all        (GSList         *uri_list);
 207
 208 static void textview_toggle_quote               (TextView       *textview,
 209                                                  ClickableText  *uri,
 210                                                  gboolean        expand_only);
 211
 212 static void open_uri_cb                         (TextView       *textview,
 213                                                  guint           action,
 214                                                  void           *data);
 215 static void copy_uri_cb                         (TextView       *textview,
 216                                                  guint           action,
 217                                                  void           *data);
 218 static void add_uri_to_addrbook_cb              (TextView       *textview,
 219                                                  guint           action,
 220                                                  void           *data);
 221 static void mail_to_uri_cb                      (TextView       *textview,
 222                                                  guint           action,
 223                                                  void           *data);
 224 static void copy_mail_to_uri_cb                 (TextView       *textview,
 225                                                  guint           action,
 226                                                  void           *data);
 227 static void save_file_cb                        (TextView       *textview,
 228                                                  guint           action,
 229                                                  void           *data);
 230 static void open_image_cb                       (TextView       *textview,
 231                                                  guint           action,
 232                                                  void           *data);
 233 static void textview_show_icon(TextView *textview, const gchar *stock_id);
 234
 235 static GtkItemFactoryEntry textview_link_popup_entries[] =
 236 {
 237         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 238         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 239 };
 240
 241 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 242 {
 243         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 244         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 245         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 246 };
 247
 248 static GtkItemFactoryEntry textview_file_popup_entries[] =
 249 {
 250         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 251         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 252 };
 253
 254 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 255 {
 256 #ifndef WIDTH
 257 #  define WIDTH 48
 258 #  define HEIGHT 48
 259 #endif
 260         if (textview->image) {
 261                 gint x, y, x1;
 262                 x1 = textview->text->allocation.width - WIDTH - 5;
 263                 gtk_text_view_buffer_to_window_coords(
 264                         GTK_TEXT_VIEW(textview->text),
 265                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 266                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 267                         textview->image, x1, y);
 268         }
 269 }
 270
 271 static void textview_size_allocate_cb   (GtkWidget      *widget,
 272                                          GtkAllocation  *allocation,
 273                                          gpointer        data)
 274 {
 275         scrolled_cb(NULL, (TextView *)data);
 276 }
 277
 278 TextView *textview_create(void)
 279 {
 280         TextView *textview;
 281         GtkWidget *vbox;
 282         GtkWidget *scrolledwin;
 283         GtkWidget *text;
 284         GtkTextBuffer *buffer;
 285         GtkClipboard *clipboard;
 286         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 287         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 288         GtkAdjustment *adj;
 289         gint n_entries;
 290
 291         debug_print("Creating text view...\n");
 292         textview = g_new0(TextView, 1);
 293
 294         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 295         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 296                                        GTK_POLICY_AUTOMATIC,
 297                                        GTK_POLICY_AUTOMATIC);
 298         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 299                                             GTK_SHADOW_IN);
 300         gtk_widget_set_size_request
 301                 (scrolledwin, prefs_common.mainview_width, -1);
 302
 303         /* create GtkSText widgets for single-byte and multi-byte character */
 304         text = gtk_text_view_new();
 305         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 306         gtk_widget_show(text);
 307         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 308         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 309         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 310         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 311         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 312
 313         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 314         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 315         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 316
 317         gtk_widget_ensure_style(text);
 318
 319         gtk_widget_ref(scrolledwin);
 320
 321         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 322
 323         g_signal_connect(G_OBJECT(text), "key-press-event",
 324                          G_CALLBACK(textview_key_pressed), textview);
 325         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 326                          G_CALLBACK(textview_motion_notify), textview);
 327         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 328                          G_CALLBACK(textview_leave_notify), textview);
 329         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 330                          G_CALLBACK(textview_visibility_notify), textview);
 331         adj = gtk_scrolled_window_get_vadjustment(
 332                 GTK_SCROLLED_WINDOW(scrolledwin));
 333         g_signal_connect(G_OBJECT(adj), "value-changed",
 334                          G_CALLBACK(scrolled_cb), textview);
 335         g_signal_connect(G_OBJECT(text), "size_allocate",
 336                          G_CALLBACK(textview_size_allocate_cb),
 337                          textview);
 338
 339
 340         gtk_widget_show(scrolledwin);
 341
 342         vbox = gtk_vbox_new(FALSE, 0);
 343         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 344
 345         gtk_widget_show(vbox);
 346
 347         n_entries = sizeof(textview_link_popup_entries) /
 348                 sizeof(textview_link_popup_entries[0]);
 349         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 350                                       "<UriPopupMenu>", &link_popupfactory,
 351                                       textview);
 352
 353         n_entries = sizeof(textview_mail_popup_entries) /
 354                 sizeof(textview_mail_popup_entries[0]);
 355         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 356                                       "<UriPopupMenu>", &mail_popupfactory,
 357                                       textview);
 358
 359         n_entries = sizeof(textview_file_popup_entries) /
 360                 sizeof(textview_file_popup_entries[0]);
 361         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 362                                       "<FilePopupMenu>", &file_popupfactory,
 363                                       textview);
 364
 365         textview->vbox               = vbox;
 366         textview->scrolledwin        = scrolledwin;
 367         textview->text               = text;
 368         textview->uri_list           = NULL;
 369         textview->body_pos           = 0;
 370         textview->show_all_headers   = FALSE;
 371         textview->last_buttonpress   = GDK_NOTHING;
 372         textview->link_popup_menu    = link_popupmenu;
 373         textview->link_popup_factory = link_popupfactory;
 374         textview->mail_popup_menu    = mail_popupmenu;
 375         textview->mail_popup_factory = mail_popupfactory;
 376         textview->file_popup_menu    = file_popupmenu;
 377         textview->file_popup_factory = file_popupfactory;
 378         textview->image              = NULL;
 379         return textview;
 380 }
 381
 382 static void textview_create_tags(GtkTextView *text, TextView *textview)
 383 {
 384         GtkTextBuffer *buffer;
 385         GtkTextTag *tag, *qtag;
 386         static PangoFontDescription *font_desc, *bold_font_desc;
 387
 388         if (!font_desc)
 389                 font_desc = pango_font_description_from_string
 390                         (NORMAL_FONT);
 391
 392         if (!bold_font_desc) {
 393                 bold_font_desc = pango_font_description_from_string
 394                         (NORMAL_FONT);
 395                 pango_font_description_set_weight
 396                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 397         }
 398
 399         buffer = gtk_text_view_get_buffer(text);
 400
 401         gtk_text_buffer_create_tag(buffer, "header",
 402                                    "pixels-above-lines", 0,
 403                                    "pixels-above-lines-set", TRUE,
 404                                    "pixels-below-lines", 0,
 405                                    "pixels-below-lines-set", TRUE,
 406                                    "font-desc", font_desc,
 407                                    "left-margin", 3,
 408                                    "left-margin-set", TRUE,
 409                                    NULL);
 410         gtk_text_buffer_create_tag(buffer, "header_title",
 411                                    "font-desc", bold_font_desc,
 412                                    NULL);
 413         if (prefs_common.enable_bgcolor) {
 414                 gtk_text_buffer_create_tag(buffer, "quote0",
 415                                 "foreground-gdk", &quote_colors[0],
 416                                 "paragraph-background-gdk", &quote_bgcolors[0],
 417                                 NULL);
 418                 gtk_text_buffer_create_tag(buffer, "quote1",
 419                                 "foreground-gdk", &quote_colors[1],
 420                                 "paragraph-background-gdk", &quote_bgcolors[1],
 421                                 NULL);
 422                 gtk_text_buffer_create_tag(buffer, "quote2",
 423                                 "foreground-gdk", &quote_colors[2],
 424                                 "paragraph-background-gdk", &quote_bgcolors[2],
 425                                 NULL);
 426         } else {
 427                 gtk_text_buffer_create_tag(buffer, "quote0",
 428                                 "foreground-gdk", &quote_colors[0],
 429                                 NULL);
 430                 gtk_text_buffer_create_tag(buffer, "quote1",
 431                                 "foreground-gdk", &quote_colors[1],
 432                                 NULL);
 433                 gtk_text_buffer_create_tag(buffer, "quote2",
 434                                 "foreground-gdk", &quote_colors[2],
 435                                 NULL);
 436         }
 437         gtk_text_buffer_create_tag(buffer, "emphasis",
 438                         "foreground-gdk", &emphasis_color,
 439                         NULL);
 440         gtk_text_buffer_create_tag(buffer, "signature",
 441                         "foreground-gdk", &signature_color,
 442                         NULL);
 443         tag = gtk_text_buffer_create_tag(buffer, "link",
 444                         "foreground-gdk", &uri_color,
 445                         NULL);
 446         qtag = gtk_text_buffer_create_tag(buffer, "qlink",
 447                         NULL);
 448         gtk_text_buffer_create_tag(buffer, "link-hover",
 449                         "underline", PANGO_UNDERLINE_SINGLE,
 450                         NULL);
 451         g_signal_connect(G_OBJECT(qtag), "event",
 452                          G_CALLBACK(textview_uri_button_pressed), textview);
 453         g_signal_connect(G_OBJECT(tag), "event",
 454                          G_CALLBACK(textview_uri_button_pressed), textview);
 455  }
 456
 457 void textview_init(TextView *textview)
 458 {
 459         if (!hand_cursor)
 460                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 461         if (!text_cursor)
 462                 text_cursor = gdk_cursor_new(GDK_XTERM);
 463         if (!watch_cursor)
 464                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 465
 466         textview_reflect_prefs(textview);
 467         textview_set_all_headers(textview, FALSE);
 468         textview_set_font(textview, NULL);
 469         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 470 }
 471
 472 #if GTK_CHECK_VERSION(2, 8, 0)
 473  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 474         tag = gtk_text_tag_table_lookup(tags, tagname); \
 475         if (tag) \
 476                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 477  }
 478 #else
 479  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 480         tag = gtk_text_tag_table_lookup(tags, tagname); \
 481         if (tag) \
 482                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, NULL); \
 483  }
 484 #endif
 485
 486 static void textview_update_message_colors(TextView *textview)
 487 {
 488         GdkColor black = {0, 0, 0, 0};
 489         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 490         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 491
 492         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 493         GtkTextTag *tag = NULL;
 494
 495         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 496         quote_colors[0] = quote_colors[1] = quote_colors[2] =
 497                 uri_color = emphasis_color = signature_color = black;
 498
 499         if (prefs_common.enable_color) {
 500                 /* grab the quote colors, converting from an int to a GdkColor */
 501                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 502                                                &quote_colors[0]);
 503                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 504                                                &quote_colors[1]);
 505                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 506                                                &quote_colors[2]);
 507                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 508                                                &uri_color);
 509                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 510                                                &signature_color);
 511                 emphasis_color = colored_emphasis;
 512         }
 513         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 514                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_bgcol,
 515                                                    &quote_bgcolors[0]);
 516                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_bgcol,
 517                                                    &quote_bgcolors[1]);
 518                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_bgcol,
 519                                                    &quote_bgcolors[2]);
 520                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 521                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 522                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 523         } else {
 524                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 525                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 526                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 527         }
 528
 529         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 530         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 531         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 532         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 533 }
 534 #undef CHANGE_TAG_COLOR
 535
 536 void textview_reflect_prefs(TextView *textview)
 537 {
 538         textview_set_font(textview, NULL);
 539         textview_update_message_colors(textview);
 540         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 541                                          prefs_common.textview_cursor_visible);
 542 }
 543
 544 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 545                            const gchar *file)
 546 {
 547         textview_clear(textview);
 548
 549         textview_add_parts(textview, mimeinfo);
 550
 551         textview_set_position(textview, 0);
 552 }
 553
 554 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 555 {
 556         g_return_if_fail(mimeinfo != NULL);
 557         g_return_if_fail(fp != NULL);
 558
 559         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 560             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 561                 textview_clear(textview);
 562                 textview_add_parts(textview, mimeinfo);
 563                 return;
 564         }
 565
 566         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 567                 perror("fseek");
 568
 569         textview_clear(textview);
 570
 571         if (mimeinfo->type == MIMETYPE_MULTIPART)
 572                 textview_add_parts(textview, mimeinfo);
 573         else
 574                 textview_write_body(textview, mimeinfo);
 575 }
 576
 577 #define TEXT_INSERT(str) \
 578         gtk_text_buffer_insert_with_tags_by_name \
 579                                 (buffer, &iter, str, -1,\
 580                                  "header", NULL)
 581
 582 #define TEXT_INSERT_LINK(str, fname, udata) {                           \
 583         ClickableText *uri;                                                     \
 584         uri = g_new0(ClickableText, 1);                                 \
 585         uri->uri = g_strdup("");                                        \
 586         uri->start = gtk_text_iter_get_offset(&iter);                   \
 587         gtk_text_buffer_insert_with_tags_by_name                        \
 588                                 (buffer, &iter, str, -1,                \
 589                                  "link", "header_title", "header",      \
 590                                  NULL);                                 \
 591         uri->end = gtk_text_iter_get_offset(&iter);                     \
 592         uri->filename = fname?g_strdup(fname):NULL;                     \
 593         uri->data = udata;                                              \
 594         textview->uri_list =                                            \
 595                 g_slist_append(textview->uri_list, uri);                \
 596 }
 597
 598 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 599 {
 600         GtkTextView *text;
 601         GtkTextBuffer *buffer;
 602         GtkTextIter iter, start_iter;
 603         gchar buf[BUFFSIZE];
 604         GPtrArray *headers = NULL;
 605         const gchar *name;
 606         gchar *content_type;
 607         gint charcount;
 608
 609         g_return_if_fail(mimeinfo != NULL);
 610         text = GTK_TEXT_VIEW(textview->text);
 611         buffer = gtk_text_view_get_buffer(text);
 612         charcount = gtk_text_buffer_get_char_count(buffer);
 613         gtk_text_buffer_get_end_iter(buffer, &iter);
 614
 615         if (mimeinfo->type == MIMETYPE_MULTIPART) return;
 616
 617         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 618                 FILE *fp;
 619
 620                 fp = g_fopen(mimeinfo->data.filename, "rb");
 621                 fseek(fp, mimeinfo->offset, SEEK_SET);
 622                 headers = textview_scan_header(textview, fp);
 623                 if (headers) {
 624                         if (charcount > 0)
 625                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 626                         textview_show_header(textview, headers);
 627                         procheader_header_array_destroy(headers);
 628                 }
 629                 fclose(fp);
 630                 return;
 631         }
 632
 633         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 634         content_type = procmime_get_content_type_str(mimeinfo->type,
 635                                                      mimeinfo->subtype);
 636         if (name == NULL)
 637                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 638         if (name != NULL)
 639                 g_snprintf(buf, sizeof(buf), _("[%s  %s (%d bytes)]"),
 640                            name, content_type, mimeinfo->length);
 641         else
 642                 g_snprintf(buf, sizeof(buf), _("[%s (%d bytes)]"),
 643                            content_type, mimeinfo->length);
 644
 645         g_free(content_type);
 646
 647         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 648         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 649             mimeinfo->type != MIMETYPE_TEXT)) {
 650                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 651                 TEXT_INSERT_LINK(buf, "sc://select_attachment", mimeinfo);
 652                 gtk_text_buffer_insert(buffer, &iter, " \n", -1);
 653                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 654                     prefs_common.inline_img ) {
 655                         GdkPixbuf *pixbuf;
 656                         GError *error = NULL;
 657                         gchar *filename;
 658                         ClickableText *uri;
 659                         gchar *uri_str;
 660
 661                         filename = procmime_get_tmp_file_name(mimeinfo);
 662                         if (procmime_get_part(filename, mimeinfo) < 0) {
 663                                 g_warning("Can't get the image file.");
 664                                 g_free(filename);
 665                                 return;
 666                         }
 667
 668                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 669                         if (error != NULL) {
 670                                 g_warning("%s\n", error->message);
 671                                 g_error_free(error);
 672                         }
 673                         if (!pixbuf) {
 674                                 g_warning("Can't load the image.");
 675                                 g_free(filename);
 676                                 return;
 677                         }
 678
 679                         if (prefs_common.resize_img) {
 680                                 int new_width, new_height;
 681                                 GdkPixbuf *scaled;
 682                                 image_viewer_get_resized_size(gdk_pixbuf_get_width(pixbuf),
 683                                                  gdk_pixbuf_get_height(pixbuf),
 684                                                  textview->scrolledwin->allocation.width - 100,
 685                                                  gdk_pixbuf_get_height(pixbuf),
 686                                                  &new_width, &new_height);
 687                                 scaled = gdk_pixbuf_scale_simple
 688                                         (pixbuf, new_width, new_height, GDK_INTERP_BILINEAR);
 689
 690                                 g_object_unref(pixbuf);
 691                                 pixbuf = scaled;
 692                         }
 693
 694                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 695                         if (uri_str) {
 696                                 uri = g_new0(ClickableText, 1);
 697                                 uri->uri = uri_str;
 698                                 uri->start = gtk_text_iter_get_offset(&iter);
 699
 700                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 701
 702                                 uri->end = uri->start + 1;
 703                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 704                                 textview->uri_list =
 705                                         g_slist_append(textview->uri_list, uri);
 706
 707                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 708                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 709                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 710                                                 &start_iter, &iter);
 711                         } else {
 712                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 713                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 714                         }
 715
 716                         g_object_unref(pixbuf);
 717                         g_free(filename);
 718                 }
 719         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 720                 if (prefs_common.display_header && (charcount > 0))
 721                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 722
 723                 textview_write_body(textview, mimeinfo);
 724         }
 725 }
 726
 727 static void recursive_add_parts(TextView *textview, GNode *node)
 728 {
 729         GNode * iter;
 730         MimeInfo *mimeinfo;
 731
 732         mimeinfo = (MimeInfo *) node->data;
 733
 734         textview_add_part(textview, mimeinfo);
 735
 736         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 737             (mimeinfo->type != MIMETYPE_MESSAGE))
 738                 return;
 739
 740         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 741                 GNode * prefered_body;
 742                 int prefered_score;
 743
 744                 /*
 745                   text/plain : score 3
 746                   text/ *    : score 2
 747                   other      : score 1
 748                 */
 749                 prefered_body = NULL;
 750                 prefered_score = 0;
 751
 752                 for (iter = g_node_first_child(node) ; iter != NULL ;
 753                      iter = g_node_next_sibling(iter)) {
 754                         int score;
 755                         MimeInfo * submime;
 756
 757                         score = 1;
 758                         submime = (MimeInfo *) iter->data;
 759                         if (submime->type == MIMETYPE_TEXT)
 760                                 score = 2;
 761
 762                         if (submime->subtype != NULL) {
 763                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 764                                         score = 3;
 765                         }
 766
 767                         if (score > prefered_score) {
 768                                 prefered_score = score;
 769                                 prefered_body = iter;
 770                         }
 771                 }
 772
 773                 if (prefered_body != NULL) {
 774                         recursive_add_parts(textview, prefered_body);
 775                 }
 776         }
 777         else {
 778                 for (iter = g_node_first_child(node) ; iter != NULL ;
 779                      iter = g_node_next_sibling(iter)) {
 780                         recursive_add_parts(textview, iter);
 781                 }
 782         }
 783 }
 784
 785 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 786 {
 787         g_return_if_fail(mimeinfo != NULL);
 788
 789         recursive_add_parts(textview, mimeinfo->node);
 790 }
 791
 792 void textview_show_error(TextView *textview)
 793 {
 794         GtkTextView *text;
 795         GtkTextBuffer *buffer;
 796         GtkTextIter iter;
 797
 798         textview_set_font(textview, NULL);
 799         textview_clear(textview);
 800
 801         text = GTK_TEXT_VIEW(textview->text);
 802         buffer = gtk_text_view_get_buffer(text);
 803         gtk_text_buffer_get_start_iter(buffer, &iter);
 804
 805         TEXT_INSERT(_("\n"
 806                       "  This message can't be displayed.\n"
 807                       "  This is probably due to a network error.\n"
 808                       "\n"
 809                       "  Use "));
 810         TEXT_INSERT_LINK(_("'View Log'"), "sc://view_log", NULL);
 811         TEXT_INSERT(_(" in the Tools menu for more information."));
 812         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 813
 814 }
 815
 816 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 817 {
 818         GtkTextView *text;
 819         GtkTextBuffer *buffer;
 820         GtkTextIter iter;
 821
 822         if (!partinfo) return;
 823
 824         textview_set_font(textview, NULL);
 825         textview_clear(textview);
 826
 827         text = GTK_TEXT_VIEW(textview->text);
 828         buffer = gtk_text_view_get_buffer(text);
 829         gtk_text_buffer_get_start_iter(buffer, &iter);
 830
 831         TEXT_INSERT("\n");
 832         TEXT_INSERT(_("  The following can be performed on this part by\n"));
 833         TEXT_INSERT(_("  right-clicking the icon or list item:\n"));
 834
 835         TEXT_INSERT(_("     - To save, select "));
 836         TEXT_INSERT_LINK(_("'Save as...'"), "sc://save_as", NULL);
 837         TEXT_INSERT(_(" (Shortcut key: 'y')\n"));
 838         TEXT_INSERT(_("     - To display as text, select "));
 839         TEXT_INSERT_LINK(_("'Display as text'"), "sc://display_as_text", NULL);
 840         TEXT_INSERT(_(" (Shortcut key: 't')\n"));
 841         TEXT_INSERT(_("     - To open with an external program, select "));
 842         TEXT_INSERT_LINK(_("'Open'"), "sc://open", NULL);
 843         TEXT_INSERT(_(" (Shortcut key: 'l')\n"));
 844         TEXT_INSERT(_("       (alternately double-click, or click the middle "));
 845         TEXT_INSERT(_("mouse button)\n"));
 846         TEXT_INSERT(_("     - Or use "));
 847         TEXT_INSERT_LINK(_("'Open with...'"), "sc://open_with", NULL);
 848         TEXT_INSERT(_(" (Shortcut key: 'o')\n"));
 849         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 850 }
 851
 852 #undef TEXT_INSERT
 853 #undef TEXT_INSERT_LINK
 854
 855 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 856 {
 857         FILE *tmpfp;
 858         gchar buf[BUFFSIZE];
 859         CodeConverter *conv;
 860         const gchar *charset, *p, *cmd;
 861         GSList *cur;
 862
 863         if (textview->messageview->forced_charset)
 864                 charset = textview->messageview->forced_charset;
 865         else
 866                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 867
 868         textview_set_font(textview, charset);
 869
 870         conv = conv_code_converter_new(charset);
 871
 872         procmime_force_encoding(textview->messageview->forced_encoding);
 873
 874         textview->is_in_signature = FALSE;
 875
 876         procmime_decode_content(mimeinfo);
 877
 878         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 879             prefs_common.render_html) {
 880                 gchar *filename;
 881
 882                 filename = procmime_get_tmp_file_name(mimeinfo);
 883                 if (procmime_get_part(filename, mimeinfo) == 0) {
 884                         tmpfp = g_fopen(filename, "rb");
 885                         textview_show_html(textview, tmpfp, conv);
 886                         fclose(tmpfp);
 887                         g_unlink(filename);
 888                 }
 889                 g_free(filename);
 890         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 891                 gchar *filename;
 892
 893                 filename = procmime_get_tmp_file_name(mimeinfo);
 894                 if (procmime_get_part(filename, mimeinfo) == 0) {
 895                         tmpfp = g_fopen(filename, "rb");
 896                         textview_show_ertf(textview, tmpfp, conv);
 897                         fclose(tmpfp);
 898                         g_unlink(filename);
 899                 }
 900                 g_free(filename);
 901         } else if ( g_ascii_strcasecmp(mimeinfo->subtype, "plain") &&
 902                    (cmd = prefs_common.mime_textviewer) && *cmd &&
 903                    (p = strchr(cmd, '%')) && *(p + 1) == 's') {
 904                 int pid, pfd[2];
 905                 const gchar *fname;
 906
 907                 fname  = procmime_get_tmp_file_name(mimeinfo);
 908                 if (procmime_get_part(fname, mimeinfo)) goto textview_default;
 909
 910                 g_snprintf(buf, sizeof(buf), cmd, fname);
 911                 debug_print("Viewing text content of type: %s (length: %d) "
 912                         "using %s\n", mimeinfo->subtype, mimeinfo->length, buf);
 913
 914                 if (pipe(pfd) < 0) {
 915                         g_snprintf(buf, sizeof(buf),
 916                                 "pipe failed for textview\n\n%s\n", strerror(errno));
 917                         textview_write_line(textview, buf, conv);
 918                         goto textview_default;
 919                 }
 920                 pid = fork();
 921                 if (pid < 0) {
 922                         g_snprintf(buf, sizeof(buf),
 923                                 "fork failed for textview\n\n%s\n", strerror(errno));
 924                         textview_write_line(textview, buf, conv);
 925                         close(pfd[0]);
 926                         close(pfd[1]);
 927                         goto textview_default;
 928                 }
 929                 if (pid == 0) { /* child */
 930                         int rc;
 931                         gchar **argv;
 932                         argv = strsplit_with_quote(buf, " ", 0);
 933                         close(1);
 934                         close(pfd[0]);
 935                         dup(pfd[1]);
 936                         rc = execvp(argv[0], argv);
 937                         close(pfd[1]);
 938                         printf (_("The command to view attachment "
 939                                 "as text failed:\n"
 940                                 "    %s\n"
 941                                 "Exit code %d\n"), buf, rc);
 942                         exit(255);
 943                 }
 944                 close(pfd[1]);
 945                 tmpfp = fdopen(pfd[0], "rb");
 946                 while (fgets(buf, sizeof(buf), tmpfp))
 947                         textview_write_line(textview, buf, conv);
 948                 fclose(tmpfp);
 949                 waitpid(pid, pfd, 0);
 950                 unlink(fname);
 951         } else {
 952 textview_default:
 953                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 954                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 955                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 956                 while ((fgets(buf, sizeof(buf), tmpfp) != NULL) &&
 957                        (ftell(tmpfp) <= mimeinfo->offset + mimeinfo->length))
 958                         textview_write_line(textview, buf, conv);
 959                 fclose(tmpfp);
 960         }
 961
 962         conv_code_converter_destroy(conv);
 963         procmime_force_encoding(0);
 964
 965         for (cur = textview->uri_list; cur; cur = cur->next) {
 966                 ClickableText *uri = (ClickableText *)cur->data;
 967                 if (!uri->is_quote)
 968                         continue;
 969                 if (!prefs_common.hide_quotes ||
 970                     uri->quote_level+1 < prefs_common.hide_quotes) {
 971                         textview_toggle_quote(textview, uri, TRUE);
 972                 }
 973         }
 974 }
 975
 976 static void textview_show_html(TextView *textview, FILE *fp,
 977                                CodeConverter *conv)
 978 {
 979         SC_HTMLParser *parser;
 980         gchar *str;
 981
 982         parser = sc_html_parser_new(fp, conv);
 983         g_return_if_fail(parser != NULL);
 984
 985         while ((str = sc_html_parse(parser)) != NULL) {
 986                 if (parser->state == SC_HTML_HREF) {
 987                         /* first time : get and copy the URL */
 988                         if (parser->href == NULL) {
 989                                 /* ALF - the sylpheed html parser returns an empty string,
 990                                  * if still inside an <a>, but already parsed past HREF */
 991                                 str = strtok(str, " ");
 992                                 if (str) {
 993                                         while (str && *str && g_ascii_isspace(*str))
 994                                                 str++;
 995                                         parser->href = g_strdup(str);
 996                                         /* the URL may (or not) be followed by the
 997                                          * referenced text */
 998                                         str = strtok(NULL, "");
 999                                 }
1000                         }
1001                         if (str != NULL)
1002                                 textview_write_link(textview, str, parser->href, NULL);
1003                 } else
1004                         textview_write_line(textview, str, NULL);
1005         }
1006         textview_write_line(textview, "\n", NULL);
1007         sc_html_parser_destroy(parser);
1008 }
1009
1010 static void textview_show_ertf(TextView *textview, FILE *fp,
1011                                CodeConverter *conv)
1012 {
1013         ERTFParser *parser;
1014         gchar *str;
1015
1016         parser = ertf_parser_new(fp, conv);
1017         g_return_if_fail(parser != NULL);
1018
1019         while ((str = ertf_parse(parser)) != NULL) {
1020                 textview_write_line(textview, str, NULL);
1021         }
1022
1023         ertf_parser_destroy(parser);
1024 }
1025
1026 #define ADD_TXT_POS(bp_, ep_, pti_) \
1027         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1028                 last = last->next; \
1029                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1030                 last->next = NULL; \
1031         } else { \
1032                 g_warning("alloc error scanning URIs\n"); \
1033                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
1034                                                          linebuf, -1, \
1035                                                          fg_tag, NULL); \
1036                 return; \
1037         }
1038
1039 #define ADD_TXT_POS_LATER(bp_, ep_, pti_) \
1040         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1041                 last = last->next; \
1042                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1043                 last->next = NULL; \
1044         } else { \
1045                 g_warning("alloc error scanning URIs\n"); \
1046         }
1047
1048 /* textview_make_clickable_parts() - colorizes clickable parts */
1049 static void textview_make_clickable_parts(TextView *textview,
1050                                           const gchar *fg_tag,
1051                                           const gchar *uri_tag,
1052                                           const gchar *linebuf,
1053                                           gboolean hdr)
1054 {
1055         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1056         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1057         GtkTextIter iter;
1058         gchar *mybuf = g_strdup(linebuf);
1059
1060         /* parse table - in order of priority */
1061         struct table {
1062                 const gchar *needle; /* token */
1063
1064                 /* token search function */
1065                 gchar    *(*search)     (const gchar *haystack,
1066                                          const gchar *needle);
1067                 /* part parsing function */
1068                 gboolean  (*parse)      (const gchar *start,
1069                                          const gchar *scanpos,
1070                                          const gchar **bp_,
1071                                          const gchar **ep_,
1072                                          gboolean hdr);
1073                 /* part to URI function */
1074                 gchar    *(*build_uri)  (const gchar *bp,
1075                                          const gchar *ep);
1076         };
1077
1078         static struct table parser[] = {
1079                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1080                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1081                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1082                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1083                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1084                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1085                 {"@",        strcasestr, get_email_part, make_email_string}
1086         };
1087         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1088
1089         gint  n;
1090         const gchar *walk, *bp, *ep;
1091
1092         struct txtpos {
1093                 const gchar     *bp, *ep;       /* text position */
1094                 gint             pti;           /* index in parse table */
1095                 struct txtpos   *next;          /* next */
1096         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1097
1098         if (!g_utf8_validate(linebuf, -1, NULL)) {
1099                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1100                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1101         }
1102
1103         gtk_text_buffer_get_end_iter(buffer, &iter);
1104
1105         /* parse for clickable parts, and build a list of begin and end positions  */
1106         for (walk = mybuf, n = 0;;) {
1107                 gint last_index = PARSE_ELEMS;
1108                 gchar *scanpos = NULL;
1109
1110                 /* FIXME: this looks phony. scanning for anything in the parse table */
1111                 for (n = 0; n < PARSE_ELEMS; n++) {
1112                         gchar *tmp;
1113
1114                         tmp = parser[n].search(walk, parser[n].needle);
1115                         if (tmp) {
1116                                 if (scanpos == NULL || tmp < scanpos) {
1117                                         scanpos = tmp;
1118                                         last_index = n;
1119                                 }
1120                         }
1121                 }
1122
1123                 if (scanpos) {
1124                         /* check if URI can be parsed */
1125                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1126                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1127                                         ADD_TXT_POS(bp, ep, last_index);
1128                                         walk = ep;
1129                         } else
1130                                 walk = scanpos +
1131                                         strlen(parser[last_index].needle);
1132                 } else
1133                         break;
1134         }
1135
1136         /* colorize this line */
1137         if (head.next) {
1138                 const gchar *normal_text = mybuf;
1139
1140                 /* insert URIs */
1141                 for (last = head.next; last != NULL;
1142                      normal_text = last->ep, last = last->next) {
1143                         ClickableText *uri;
1144                         uri = g_new0(ClickableText, 1);
1145                         if (last->bp - normal_text > 0)
1146                                 gtk_text_buffer_insert_with_tags_by_name
1147                                         (buffer, &iter,
1148                                          normal_text,
1149                                          last->bp - normal_text,
1150                                          fg_tag, NULL);
1151                         uri->uri = parser[last->pti].build_uri(last->bp,
1152                                                                last->ep);
1153                         uri->start = gtk_text_iter_get_offset(&iter);
1154                         gtk_text_buffer_insert_with_tags_by_name
1155                                 (buffer, &iter, last->bp, last->ep - last->bp,
1156                                  uri_tag, fg_tag, NULL);
1157                         uri->end = gtk_text_iter_get_offset(&iter);
1158                         uri->filename = NULL;
1159                         textview->uri_list =
1160                                 g_slist_append(textview->uri_list, uri);
1161                 }
1162
1163                 if (*normal_text)
1164                         gtk_text_buffer_insert_with_tags_by_name
1165                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1166         } else {
1167                 gtk_text_buffer_insert_with_tags_by_name
1168                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1169         }
1170         g_free(mybuf);
1171 }
1172
1173 /* textview_make_clickable_parts() - colorizes clickable parts */
1174 static void textview_make_clickable_parts_later(TextView *textview,
1175                                           gint start, gint end)
1176 {
1177         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1178         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1179         GtkTextIter start_iter, end_iter;
1180         gchar *mybuf;
1181         gint offset = 0;
1182         /* parse table - in order of priority */
1183         struct table {
1184                 const gchar *needle; /* token */
1185
1186                 /* token search function */
1187                 gchar    *(*search)     (const gchar *haystack,
1188                                          const gchar *needle);
1189                 /* part parsing function */
1190                 gboolean  (*parse)      (const gchar *start,
1191                                          const gchar *scanpos,
1192                                          const gchar **bp_,
1193                                          const gchar **ep_,
1194                                          gboolean hdr);
1195                 /* part to URI function */
1196                 gchar    *(*build_uri)  (const gchar *bp,
1197                                          const gchar *ep);
1198         };
1199
1200         static struct table parser[] = {
1201                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1202                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1203                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1204                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1205                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1206                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1207                 {"@",        strcasestr, get_email_part, make_email_string}
1208         };
1209         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1210
1211         gint  n;
1212         const gchar *walk, *bp, *ep;
1213
1214         struct txtpos {
1215                 const gchar     *bp, *ep;       /* text position */
1216                 gint             pti;           /* index in parse table */
1217                 struct txtpos   *next;          /* next */
1218         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1219
1220         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start);
1221         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end);
1222         mybuf = gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
1223         offset = gtk_text_iter_get_offset(&start_iter);
1224
1225         /* parse for clickable parts, and build a list of begin and end positions  */
1226         for (walk = mybuf, n = 0;;) {
1227                 gint last_index = PARSE_ELEMS;
1228                 gchar *scanpos = NULL;
1229
1230                 /* FIXME: this looks phony. scanning for anything in the parse table */
1231                 for (n = 0; n < PARSE_ELEMS; n++) {
1232                         gchar *tmp;
1233
1234                         tmp = parser[n].search(walk, parser[n].needle);
1235                         if (tmp) {
1236                                 if (scanpos == NULL || tmp < scanpos) {
1237                                         scanpos = tmp;
1238                                         last_index = n;
1239                                 }
1240                         }
1241                 }
1242
1243                 if (scanpos) {
1244                         /* check if URI can be parsed */
1245                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, FALSE)
1246                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1247                                         ADD_TXT_POS_LATER(bp, ep, last_index);
1248                                         walk = ep;
1249                         } else
1250                                 walk = scanpos +
1251                                         strlen(parser[last_index].needle);
1252                 } else
1253                         break;
1254         }
1255
1256         /* colorize this line */
1257         if (head.next) {
1258                 const gchar *normal_text = mybuf;
1259
1260                 /* insert URIs */
1261                 for (last = head.next; last != NULL;
1262                      normal_text = last->ep, last = last->next) {
1263                         ClickableText *uri;
1264                         uri = g_new0(ClickableText, 1);
1265                         uri->uri = parser[last->pti].build_uri(last->bp,
1266                                                                last->ep);
1267
1268                         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, last->bp - mybuf + offset);
1269                         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, last->ep - mybuf + offset);
1270
1271                         uri->start = gtk_text_iter_get_offset(&start_iter);
1272
1273                         gtk_text_buffer_apply_tag_by_name(buffer, "link", &start_iter, &end_iter);
1274
1275                         uri->end = gtk_text_iter_get_offset(&end_iter);
1276                         uri->filename = NULL;
1277                         textview->uri_list =
1278                                 g_slist_append(textview->uri_list, uri);
1279                 }
1280         }
1281
1282         g_free(mybuf);
1283 }
1284
1285 #undef ADD_TXT_POS
1286
1287 static void textview_write_line(TextView *textview, const gchar *str,
1288                                 CodeConverter *conv)
1289 {
1290         GtkTextView *text;
1291         GtkTextBuffer *buffer;
1292         GtkTextIter iter;
1293         gchar buf[BUFFSIZE];
1294         gchar *fg_color;
1295         gint quotelevel = -1;
1296         gchar quote_tag_str[10];
1297
1298         text = GTK_TEXT_VIEW(textview->text);
1299         buffer = gtk_text_view_get_buffer(text);
1300         gtk_text_buffer_get_end_iter(buffer, &iter);
1301
1302         if (!conv)
1303                 strncpy2(buf, str, sizeof(buf));
1304         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1305                 conv_localetodisp(buf, sizeof(buf), str);
1306
1307         strcrchomp(buf);
1308         fg_color = NULL;
1309
1310         /* change color of quotation
1311            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1312            Up to 3 levels of quotations are detected, and each
1313            level is colored using a different color. */
1314         if (prefs_common.enable_color
1315             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1316                 quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1317
1318                 /* set up the correct foreground color */
1319                 if (quotelevel > 2) {
1320                         /* recycle colors */
1321                         if (prefs_common.recycle_quote_colors)
1322                                 quotelevel %= 3;
1323                         else
1324                                 quotelevel = 2;
1325                 }
1326         }
1327
1328         if (quotelevel == -1)
1329                 fg_color = NULL;
1330         else {
1331                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1332                            "quote%d", quotelevel);
1333                 fg_color = quote_tag_str;
1334         }
1335
1336         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1337                 fg_color = "signature";
1338                 textview->is_in_signature = TRUE;
1339         }
1340
1341         if (quotelevel > -1) {
1342                 if ( previousquotelevel != quotelevel ) {
1343                         ClickableText *uri;
1344                         uri = g_new0(ClickableText, 1);
1345                         uri->uri = g_strdup("");
1346                         uri->data = g_strdup(buf);
1347                         uri->start = gtk_text_iter_get_offset(&iter);
1348                         gtk_text_buffer_insert_with_tags_by_name
1349                                                 (buffer, &iter, " [...]", -1,
1350                                                  "qlink", fg_color, NULL);
1351                         uri->end = gtk_text_iter_get_offset(&iter);
1352                         uri->filename = NULL;
1353                         uri->fg_color = g_strdup(fg_color);
1354                         uri->is_quote = TRUE;
1355                         uri->quote_level = quotelevel;
1356                         textview->uri_list =
1357                                 g_slist_append(textview->uri_list, uri);
1358                         gtk_text_buffer_insert(buffer, &iter, "  \n", -1);
1359
1360                         previousquotelevel = quotelevel;
1361                 } else {
1362                         GSList *last = g_slist_last(textview->uri_list);
1363                         ClickableText *lasturi = (ClickableText *)last->data;
1364                         gchar *tmp = g_strdup_printf("%s%s", (gchar *)lasturi->data, buf);
1365                         g_free(lasturi->data);
1366                         lasturi->data = tmp;
1367                 }
1368         } else {
1369                 textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1370                 previousquotelevel = -1;
1371         }
1372 }
1373
1374 void textview_write_link(TextView *textview, const gchar *str,
1375                          const gchar *uri, CodeConverter *conv)
1376 {
1377         GdkColor *link_color = NULL;
1378         GtkTextView *text;
1379         GtkTextBuffer *buffer;
1380         GtkTextIter iter;
1381         gchar buf[BUFFSIZE];
1382         gchar *bufp;
1383         ClickableText *r_uri;
1384
1385         if (!str || *str == '\0')
1386                 return;
1387         if (!uri)
1388                 return;
1389
1390         while (uri && *uri && g_ascii_isspace(*uri))
1391                 uri++;
1392
1393         text = GTK_TEXT_VIEW(textview->text);
1394         buffer = gtk_text_view_get_buffer(text);
1395         gtk_text_buffer_get_end_iter(buffer, &iter);
1396
1397         if (!conv)
1398                 strncpy2(buf, str, sizeof(buf));
1399         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1400                 conv_utf8todisp(buf, sizeof(buf), str);
1401
1402         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1403                 return;
1404
1405         strcrchomp(buf);
1406
1407         gtk_text_buffer_get_end_iter(buffer, &iter);
1408         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1409                 gunichar ch;
1410
1411                 ch = g_utf8_get_char(bufp);
1412                 if (!g_unichar_isspace(ch))
1413                         break;
1414         }
1415         if (bufp > buf)
1416                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1417
1418         if (prefs_common.enable_color) {
1419                 link_color = &uri_color;
1420         }
1421         r_uri = g_new0(ClickableText, 1);
1422         r_uri->uri = g_strdup(uri);
1423         r_uri->start = gtk_text_iter_get_offset(&iter);
1424         gtk_text_buffer_insert_with_tags_by_name
1425                 (buffer, &iter, bufp, -1, "link", NULL);
1426         r_uri->end = gtk_text_iter_get_offset(&iter);
1427         r_uri->filename = NULL;
1428         textview->uri_list = g_slist_append(textview->uri_list, r_uri);
1429 }
1430
1431 static void textview_set_cursor(GdkWindow *window, GdkCursor *cursor)
1432 {
1433         if (GDK_IS_WINDOW(window))
1434                 gdk_window_set_cursor(window, cursor);
1435 }
1436 void textview_clear(TextView *textview)
1437 {
1438         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1439         GtkTextBuffer *buffer;
1440         GdkWindow *window = gtk_text_view_get_window(text,
1441                                 GTK_TEXT_WINDOW_TEXT);
1442
1443         buffer = gtk_text_view_get_buffer(text);
1444         gtk_text_buffer_set_text(buffer, "", -1);
1445
1446         TEXTVIEW_STATUSBAR_POP(textview);
1447         textview_uri_list_remove_all(textview->uri_list);
1448         textview->uri_list = NULL;
1449         textview->uri_hover = NULL;
1450
1451         textview->body_pos = 0;
1452         if (textview->image)
1453                 gtk_widget_destroy(textview->image);
1454         textview->image = NULL;
1455
1456         if (textview->messageview->mainwin->cursor_count == 0) {
1457                 textview_set_cursor(window, text_cursor);
1458         } else {
1459                 textview_set_cursor(window, watch_cursor);
1460         }
1461 }
1462
1463 void textview_destroy(TextView *textview)
1464 {
1465         textview_uri_list_remove_all(textview->uri_list);
1466         textview->uri_list = NULL;
1467
1468         g_free(textview);
1469 }
1470
1471 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1472 {
1473         textview->show_all_headers = all_headers;
1474 }
1475
1476 #define CHANGE_TAG_FONT(tagname, font) { \
1477         tag = gtk_text_tag_table_lookup(tags, tagname); \
1478         if (tag) \
1479                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1480 }
1481
1482 void textview_set_font(TextView *textview, const gchar *codeset)
1483 {
1484         GtkTextTag *tag;
1485         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1486         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1487
1488         if (NORMAL_FONT) {
1489                 PangoFontDescription *font_desc, *bold_font_desc;
1490                 font_desc = pango_font_description_from_string
1491                                                 (NORMAL_FONT);
1492                 bold_font_desc = pango_font_description_from_string
1493                                                 (NORMAL_FONT);
1494                 if (font_desc) {
1495                         gtk_widget_modify_font(textview->text, font_desc);
1496                         CHANGE_TAG_FONT("header", font_desc);
1497                         pango_font_description_free(font_desc);
1498                 }
1499                 if (bold_font_desc) {
1500                         pango_font_description_set_weight
1501                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1502                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1503                         pango_font_description_free(bold_font_desc);
1504                 }
1505         }
1506
1507         if (prefs_common.textfont) {
1508                 PangoFontDescription *font_desc;
1509
1510                 font_desc = pango_font_description_from_string
1511                                                 (prefs_common.textfont);
1512                 if (font_desc) {
1513                         gtk_widget_modify_font(textview->text, font_desc);
1514                         pango_font_description_free(font_desc);
1515                 }
1516         }
1517         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1518                                              prefs_common.line_space / 2);
1519         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1520                                              prefs_common.line_space / 2);
1521 }
1522
1523 void textview_set_text(TextView *textview, const gchar *text)
1524 {
1525         GtkTextView *view;
1526         GtkTextBuffer *buffer;
1527
1528         g_return_if_fail(textview != NULL);
1529         g_return_if_fail(text != NULL);
1530
1531         textview_clear(textview);
1532
1533         view = GTK_TEXT_VIEW(textview->text);
1534         buffer = gtk_text_view_get_buffer(view);
1535         gtk_text_buffer_set_text(buffer, text, strlen(text));
1536 }
1537
1538 enum
1539 {
1540         H_DATE          = 0,
1541         H_FROM          = 1,
1542         H_TO            = 2,
1543         H_NEWSGROUPS    = 3,
1544         H_SUBJECT       = 4,
1545         H_CC            = 5,
1546         H_REPLY_TO      = 6,
1547         H_FOLLOWUP_TO   = 7,
1548         H_X_MAILER      = 8,
1549         H_X_NEWSREADER  = 9,
1550         H_USER_AGENT    = 10,
1551         H_ORGANIZATION  = 11,
1552 };
1553
1554 void textview_set_position(TextView *textview, gint pos)
1555 {
1556         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1557
1558         gtkut_text_view_set_position(text, pos);
1559 }
1560
1561 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1562 {
1563         gchar buf[BUFFSIZE];
1564         GPtrArray *headers, *sorted_headers;
1565         GSList *disphdr_list;
1566         Header *header;
1567         gint i;
1568
1569         g_return_val_if_fail(fp != NULL, NULL);
1570
1571         if (textview->show_all_headers)
1572                 return procheader_get_header_array_asis(fp);
1573
1574         if (!prefs_common.display_header) {
1575                 while (fgets(buf, sizeof(buf), fp) != NULL)
1576                         if (buf[0] == '\r' || buf[0] == '\n') break;
1577                 return NULL;
1578         }
1579
1580         headers = procheader_get_header_array_asis(fp);
1581
1582         sorted_headers = g_ptr_array_new();
1583
1584         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1585              disphdr_list = disphdr_list->next) {
1586                 DisplayHeaderProp *dp =
1587                         (DisplayHeaderProp *)disphdr_list->data;
1588
1589                 for (i = 0; i < headers->len; i++) {
1590                         header = g_ptr_array_index(headers, i);
1591
1592                         if (procheader_headername_equal(header->name,
1593                                                         dp->name)) {
1594                                 if (dp->hidden)
1595                                         procheader_header_free(header);
1596                                 else
1597                                         g_ptr_array_add(sorted_headers, header);
1598
1599                                 g_ptr_array_remove_index(headers, i);
1600                                 i--;
1601                         }
1602                 }
1603         }
1604
1605         if (prefs_common.show_other_header) {
1606                 for (i = 0; i < headers->len; i++) {
1607                         header = g_ptr_array_index(headers, i);
1608                         g_ptr_array_add(sorted_headers, header);
1609                 }
1610                 g_ptr_array_free(headers, TRUE);
1611         } else
1612                 procheader_header_array_destroy(headers);
1613
1614
1615         return sorted_headers;
1616 }
1617
1618 static void textview_show_face(TextView *textview)
1619 {
1620         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1621         MsgInfo *msginfo = textview->messageview->msginfo;
1622         int x = 0;
1623
1624         if (prefs_common.display_header_pane
1625         ||  !prefs_common.display_xface)
1626                 goto bail;
1627
1628         if (!msginfo->face) {
1629                 goto bail;
1630         }
1631
1632         if (textview->image)
1633                 gtk_widget_destroy(textview->image);
1634
1635         textview->image = face_get_from_header(msginfo->face);
1636         g_return_if_fail(textview->image != NULL);
1637
1638         gtk_widget_show(textview->image);
1639
1640         x = textview->text->allocation.width - WIDTH -5;
1641
1642         gtk_text_view_add_child_in_window(text, textview->image,
1643                 GTK_TEXT_WINDOW_TEXT, x, 5);
1644
1645         gtk_widget_show_all(textview->text);
1646
1647
1648         return;
1649 bail:
1650         if (textview->image)
1651                 gtk_widget_destroy(textview->image);
1652         textview->image = NULL;
1653 }
1654
1655 static void textview_show_icon(TextView *textview, const gchar *stock_id)
1656 {
1657         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1658         int x = 0;
1659
1660         if (textview->image)
1661                 gtk_widget_destroy(textview->image);
1662
1663         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
1664         g_return_if_fail(textview->image != NULL);
1665
1666         gtk_widget_show(textview->image);
1667
1668         x = textview->text->allocation.width - WIDTH -5;
1669
1670         gtk_text_view_add_child_in_window(text, textview->image,
1671                 GTK_TEXT_WINDOW_TEXT, x, 5);
1672
1673         gtk_widget_show_all(textview->text);
1674
1675
1676         return;
1677 }
1678
1679 #if HAVE_LIBCOMPFACE
1680 static void textview_show_xface(TextView *textview)
1681 {
1682         MsgInfo *msginfo = textview->messageview->msginfo;
1683         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1684         int x = 0;
1685
1686         if (prefs_common.display_header_pane
1687         ||  !prefs_common.display_xface)
1688                 goto bail;
1689
1690         if (!msginfo)
1691                 goto bail;
1692
1693         if (msginfo->face)
1694                 return;
1695
1696         if (!msginfo->xface || strlen(msginfo->xface) < 5) {
1697                 goto bail;
1698         }
1699
1700         if (textview->image)
1701                 gtk_widget_destroy(textview->image);
1702
1703         textview->image = xface_get_from_header(msginfo->xface,
1704                                 &textview->text->style->white,
1705                                 textview->text->window);
1706         g_return_if_fail(textview->image != NULL);
1707
1708         gtk_widget_show(textview->image);
1709
1710         x = textview->text->allocation.width - WIDTH -5;
1711
1712         gtk_text_view_add_child_in_window(text, textview->image,
1713                 GTK_TEXT_WINDOW_TEXT, x, 5);
1714
1715         gtk_widget_show_all(textview->text);
1716
1717         return;
1718 bail:
1719         if (textview->image)
1720                 gtk_widget_destroy(textview->image);
1721         textview->image = NULL;
1722
1723 }
1724 #endif
1725
1726 static void textview_show_header(TextView *textview, GPtrArray *headers)
1727 {
1728         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1729         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1730         GtkTextIter iter;
1731         Header *header;
1732         gint i;
1733
1734         g_return_if_fail(headers != NULL);
1735
1736         for (i = 0; i < headers->len; i++) {
1737                 header = g_ptr_array_index(headers, i);
1738                 g_return_if_fail(header->name != NULL);
1739
1740                 gtk_text_buffer_get_end_iter (buffer, &iter);
1741                 if(prefs_common.trans_hdr == TRUE) {
1742                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
1743                         gchar *trans_hdr = gettext(hdr);
1744                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1745                                 &iter, trans_hdr, -1,
1746                                 "header_title", "header", NULL);
1747                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1748                                 &iter, ":", 1, "header_title", "header", NULL);
1749                         g_free(hdr);
1750                 } else {
1751                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1752                                 &iter, header->name,
1753                                 -1, "header_title", "header", NULL);
1754                 }
1755                 if (header->name[strlen(header->name) - 1] != ' ')
1756                 gtk_text_buffer_insert_with_tags_by_name
1757                                 (buffer, &iter, " ", 1,
1758                                  "header_title", "header", NULL);
1759
1760                 if (procheader_headername_equal(header->name, "Subject") ||
1761                     procheader_headername_equal(header->name, "From")    ||
1762                     procheader_headername_equal(header->name, "To")      ||
1763                     procheader_headername_equal(header->name, "Cc"))
1764                         unfold_line(header->body);
1765
1766                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1767                      procheader_headername_equal(header->name,
1768                                                  "X-Newsreader")) &&
1769                     strstr(header->body, "Sylpheed-Claws") != NULL) {
1770                         gtk_text_buffer_get_end_iter (buffer, &iter);
1771                         gtk_text_buffer_insert_with_tags_by_name
1772                                 (buffer, &iter, header->body, -1,
1773                                  "header", "emphasis", NULL);
1774                 } else {
1775                         gboolean hdr =
1776                           procheader_headername_equal(header->name, "From") ||
1777                           procheader_headername_equal(header->name, "To") ||
1778                           procheader_headername_equal(header->name, "Cc") ||
1779                           procheader_headername_equal(header->name, "Bcc") ||
1780                           procheader_headername_equal(header->name, "Reply-To") ||
1781                           procheader_headername_equal(header->name, "Sender");
1782                         textview_make_clickable_parts(textview, "header",
1783                                                       "link", header->body,
1784                                                       hdr);
1785                 }
1786                 gtk_text_buffer_get_end_iter (buffer, &iter);
1787                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1788                                                          "header", NULL);
1789         }
1790
1791         textview_show_face(textview);
1792 #if HAVE_LIBCOMPFACE
1793         textview_show_xface(textview);
1794 #endif
1795 }
1796
1797 gboolean textview_search_string(TextView *textview, const gchar *str,
1798                                 gboolean case_sens)
1799 {
1800         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1801
1802         return gtkut_text_view_search_string(text, str, case_sens);
1803 }
1804
1805 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1806                                          gboolean case_sens)
1807 {
1808         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1809
1810         return gtkut_text_view_search_string_backward(text, str, case_sens);
1811 }
1812
1813 void textview_scroll_one_line(TextView *textview, gboolean up)
1814 {
1815         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1816         GtkAdjustment *vadj = text->vadjustment;
1817         gfloat upper;
1818
1819         if (prefs_common.enable_smooth_scroll) {
1820                 textview_smooth_scroll_one_line(textview, up);
1821                 return;
1822         }
1823
1824         if (!up) {
1825                 upper = vadj->upper - vadj->page_size;
1826                 if (vadj->value < upper) {
1827                         vadj->value += vadj->step_increment;
1828                         vadj->value = MIN(vadj->value, upper);
1829                         g_signal_emit_by_name(G_OBJECT(vadj),
1830                                               "value_changed", 0);
1831                 }
1832         } else {
1833                 if (vadj->value > 0.0) {
1834                         vadj->value -= vadj->step_increment;
1835                         vadj->value = MAX(vadj->value, 0.0);
1836                         g_signal_emit_by_name(G_OBJECT(vadj),
1837                                               "value_changed", 0);
1838                 }
1839         }
1840 }
1841
1842 gboolean textview_scroll_page(TextView *textview, gboolean up)
1843 {
1844         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1845         GtkAdjustment *vadj = text->vadjustment;
1846         gfloat upper;
1847         gfloat page_incr;
1848
1849         if (prefs_common.enable_smooth_scroll)
1850                 return textview_smooth_scroll_page(textview, up);
1851
1852         if (prefs_common.scroll_halfpage)
1853                 page_incr = vadj->page_increment / 2;
1854         else
1855                 page_incr = vadj->page_increment;
1856
1857         if (!up) {
1858                 upper = vadj->upper - vadj->page_size;
1859                 if (vadj->value < upper) {
1860                         vadj->value += page_incr;
1861                         vadj->value = MIN(vadj->value, upper);
1862                         g_signal_emit_by_name(G_OBJECT(vadj),
1863                                               "value_changed", 0);
1864                 } else
1865                         return FALSE;
1866         } else {
1867                 if (vadj->value > 0.0) {
1868                         vadj->value -= page_incr;
1869                         vadj->value = MAX(vadj->value, 0.0);
1870                         g_signal_emit_by_name(G_OBJECT(vadj),
1871                                               "value_changed", 0);
1872                 } else
1873                         return FALSE;
1874         }
1875
1876         return TRUE;
1877 }
1878
1879 static void textview_smooth_scroll_do(TextView *textview,
1880                                       gfloat old_value, gfloat last_value,
1881                                       gint step)
1882 {
1883         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1884         GtkAdjustment *vadj = text->vadjustment;
1885         gint change_value;
1886         gboolean up;
1887         gint i;
1888
1889         if (old_value < last_value) {
1890                 change_value = last_value - old_value;
1891                 up = FALSE;
1892         } else {
1893                 change_value = old_value - last_value;
1894                 up = TRUE;
1895         }
1896
1897         for (i = step; i <= change_value; i += step) {
1898                 vadj->value = old_value + (up ? -i : i);
1899                 g_signal_emit_by_name(G_OBJECT(vadj),
1900                                       "value_changed", 0);
1901         }
1902
1903         vadj->value = last_value;
1904         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1905
1906         gtk_widget_queue_draw(GTK_WIDGET(text));
1907 }
1908
1909 static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
1910 {
1911         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1912         GtkAdjustment *vadj = text->vadjustment;
1913         gfloat upper;
1914         gfloat old_value;
1915         gfloat last_value;
1916
1917         if (!up) {
1918                 upper = vadj->upper - vadj->page_size;
1919                 if (vadj->value < upper) {
1920                         old_value = vadj->value;
1921                         last_value = vadj->value + vadj->step_increment;
1922                         last_value = MIN(last_value, upper);
1923
1924                         textview_smooth_scroll_do(textview, old_value,
1925                                                   last_value,
1926                                                   prefs_common.scroll_step);
1927                 }
1928         } else {
1929                 if (vadj->value > 0.0) {
1930                         old_value = vadj->value;
1931                         last_value = vadj->value - vadj->step_increment;
1932                         last_value = MAX(last_value, 0.0);
1933
1934                         textview_smooth_scroll_do(textview, old_value,
1935                                                   last_value,
1936                                                   prefs_common.scroll_step);
1937                 }
1938         }
1939 }
1940
1941 static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
1942 {
1943         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1944         GtkAdjustment *vadj = text->vadjustment;
1945         gfloat upper;
1946         gfloat page_incr;
1947         gfloat old_value;
1948         gfloat last_value;
1949
1950         if (prefs_common.scroll_halfpage)
1951                 page_incr = vadj->page_increment / 2;
1952         else
1953                 page_incr = vadj->page_increment;
1954
1955         if (!up) {
1956                 upper = vadj->upper - vadj->page_size;
1957                 if (vadj->value < upper) {
1958                         old_value = vadj->value;
1959                         last_value = vadj->value + page_incr;
1960                         last_value = MIN(last_value, upper);
1961
1962                         textview_smooth_scroll_do(textview, old_value,
1963                                                   last_value,
1964                                                   prefs_common.scroll_step);
1965                 } else
1966                         return FALSE;
1967         } else {
1968                 if (vadj->value > 0.0) {
1969                         old_value = vadj->value;
1970                         last_value = vadj->value - page_incr;
1971                         last_value = MAX(last_value, 0.0);
1972
1973                         textview_smooth_scroll_do(textview, old_value,
1974                                                   last_value,
1975                                                   prefs_common.scroll_step);
1976                 } else
1977                         return FALSE;
1978         }
1979
1980         return TRUE;
1981 }
1982
1983 #define KEY_PRESS_EVENT_STOP() \
1984         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1985                                        "key_press_event");
1986
1987 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1988                                  TextView *textview)
1989 {
1990         SummaryView *summaryview = NULL;
1991         MessageView *messageview = textview->messageview;
1992
1993         if (!event) return FALSE;
1994         if (messageview->mainwin)
1995                 summaryview = messageview->mainwin->summaryview;
1996
1997         switch (event->keyval) {
1998         case GDK_Tab:
1999         case GDK_Home:
2000         case GDK_Left:
2001         case GDK_Up:
2002         case GDK_Right:
2003         case GDK_Down:
2004         case GDK_Page_Up:
2005         case GDK_Page_Down:
2006         case GDK_End:
2007         case GDK_Control_L:
2008         case GDK_Control_R:
2009                 return FALSE;
2010         case GDK_space:
2011                 if (summaryview)
2012                         summary_pass_key_press_event(summaryview, event);
2013                 else
2014                         textview_scroll_page
2015                                 (textview,
2016                                  (event->state &
2017                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2018                 break;
2019         case GDK_BackSpace:
2020                 textview_scroll_page(textview, TRUE);
2021                 break;
2022         case GDK_Return:
2023                 textview_scroll_one_line
2024                         (textview, (event->state &
2025                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2026                 break;
2027         case GDK_Delete:
2028                 if (summaryview)
2029                         summary_pass_key_press_event(summaryview, event);
2030                 break;
2031         case GDK_y:
2032         case GDK_t:
2033         case GDK_l:
2034         case GDK_c:
2035                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
2036                         KEY_PRESS_EVENT_STOP();
2037                         mimeview_pass_key_press_event(messageview->mimeview,
2038                                                       event);
2039                         break;
2040                 }
2041                 /* possible fall through */
2042         default:
2043                 if (summaryview &&
2044                     event->window != messageview->mainwin->window->window) {
2045                         GdkEventKey tmpev = *event;
2046
2047                         tmpev.window = messageview->mainwin->window->window;
2048                         KEY_PRESS_EVENT_STOP();
2049                         gtk_widget_event(messageview->mainwin->window,
2050                                          (GdkEvent *)&tmpev);
2051                 }
2052                 break;
2053         }
2054
2055         return TRUE;
2056 }
2057
2058 static gboolean textview_motion_notify(GtkWidget *widget,
2059                                        GdkEventMotion *event,
2060                                        TextView *textview)
2061 {
2062         textview_uri_update(textview, event->x, event->y);
2063         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
2064
2065         return FALSE;
2066 }
2067
2068 static gboolean textview_leave_notify(GtkWidget *widget,
2069                                       GdkEventCrossing *event,
2070                                       TextView *textview)
2071 {
2072         textview_uri_update(textview, -1, -1);
2073
2074         return FALSE;
2075 }
2076
2077 static gboolean textview_visibility_notify(GtkWidget *widget,
2078                                            GdkEventVisibility *event,
2079                                            TextView *textview)
2080 {
2081         gint wx, wy;
2082         GdkWindow *window;
2083
2084         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
2085                                           GTK_TEXT_WINDOW_TEXT);
2086
2087         /* check if occurred for the text window part */
2088         if (window != event->window)
2089                 return FALSE;
2090
2091         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
2092         textview_uri_update(textview, wx, wy);
2093
2094         return FALSE;
2095 }
2096
2097 void textview_cursor_wait(TextView *textview)
2098 {
2099         GdkWindow *window = gtk_text_view_get_window(
2100                         GTK_TEXT_VIEW(textview->text),
2101                         GTK_TEXT_WINDOW_TEXT);
2102         textview_set_cursor(window, watch_cursor);
2103 }
2104
2105 void textview_cursor_normal(TextView *textview)
2106 {
2107         GdkWindow *window = gtk_text_view_get_window(
2108                         GTK_TEXT_VIEW(textview->text),
2109                         GTK_TEXT_WINDOW_TEXT);
2110         textview_set_cursor(window, text_cursor);
2111 }
2112
2113 static void textview_uri_update(TextView *textview, gint x, gint y)
2114 {
2115         GtkTextBuffer *buffer;
2116         GtkTextIter start_iter, end_iter;
2117         ClickableText *uri = NULL;
2118
2119         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2120
2121         if (x != -1 && y != -1) {
2122                 gint bx, by;
2123                 GtkTextIter iter;
2124                 GSList *tags;
2125                 GSList *cur;
2126
2127                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
2128                                                       GTK_TEXT_WINDOW_WIDGET,
2129                                                       x, y, &bx, &by);
2130                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
2131                                                    &iter, bx, by);
2132
2133                 tags = gtk_text_iter_get_tags(&iter);
2134                 for (cur = tags; cur != NULL; cur = cur->next) {
2135                         GtkTextTag *tag = cur->data;
2136                         char *name;
2137
2138                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
2139
2140                         if ((!strcmp(name, "link") || !strcmp(name, "qlink"))
2141                             && textview_get_uri_range(textview, &iter, tag,
2142                                                       &start_iter, &end_iter)) {
2143
2144                                 uri = textview_get_uri_from_range(textview,
2145                                                                   &iter, tag,
2146                                                                   &start_iter,
2147                                                                   &end_iter);
2148                         }
2149                         g_free(name);
2150
2151                         if (uri)
2152                                 break;
2153                 }
2154                 g_slist_free(tags);
2155         }
2156
2157         if (uri != textview->uri_hover) {
2158                 GdkWindow *window;
2159
2160                 if (textview->uri_hover)
2161                         gtk_text_buffer_remove_tag_by_name(buffer,
2162                                                            "link-hover",
2163                                                            &textview->uri_hover_start_iter,
2164                                                            &textview->uri_hover_end_iter);
2165
2166                 textview->uri_hover = uri;
2167                 if (uri) {
2168                         textview->uri_hover_start_iter = start_iter;
2169                         textview->uri_hover_end_iter = end_iter;
2170                 }
2171
2172                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
2173                                                   GTK_TEXT_WINDOW_TEXT);
2174                 if (textview->messageview->mainwin->cursor_count == 0) {
2175                         textview_set_cursor(window, uri ? hand_cursor : text_cursor);
2176                 } else {
2177                         textview_set_cursor(window, watch_cursor);
2178                 }
2179
2180                 TEXTVIEW_STATUSBAR_POP(textview);
2181
2182                 if (uri) {
2183                         char *trimmed_uri;
2184
2185                         if (!uri->is_quote)
2186                                 gtk_text_buffer_apply_tag_by_name(buffer,
2187                                                           "link-hover",
2188                                                           &start_iter,
2189                                                           &end_iter);
2190
2191                         trimmed_uri = trim_string(uri->uri, 60);
2192                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
2193                         g_free(trimmed_uri);
2194                 }
2195         }
2196 }
2197
2198 static gboolean textview_get_uri_range(TextView *textview,
2199                                        GtkTextIter *iter,
2200                                        GtkTextTag *tag,
2201                                        GtkTextIter *start_iter,
2202                                        GtkTextIter *end_iter)
2203 {
2204         return get_tag_range(iter, tag, start_iter, end_iter);
2205 }
2206
2207 static ClickableText *textview_get_uri_from_range(TextView *textview,
2208                                               GtkTextIter *iter,
2209                                               GtkTextTag *tag,
2210                                               GtkTextIter *start_iter,
2211                                               GtkTextIter *end_iter)
2212 {
2213         gint start_pos, end_pos, cur_pos;
2214         ClickableText *uri = NULL;
2215         GSList *cur;
2216
2217         start_pos = gtk_text_iter_get_offset(start_iter);
2218         end_pos = gtk_text_iter_get_offset(end_iter);
2219         cur_pos = gtk_text_iter_get_offset(iter);
2220
2221         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
2222                 ClickableText *uri_ = (ClickableText *)cur->data;
2223                 if (start_pos == uri_->start &&
2224                     end_pos ==  uri_->end) {
2225                         uri = uri_;
2226                         break;
2227                 } else if (start_pos == uri_->start ||
2228                            end_pos == uri_->end) {
2229                         /* in case of contiguous links, textview_get_uri_range
2230                          * returns a broader range (start of 1st link to end
2231                          * of last link).
2232                          * In that case, correct link is the one covering
2233                          * current iter.
2234                          */
2235                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
2236                                 uri = uri_;
2237                                 break;
2238                         }
2239                 }
2240         }
2241
2242         return uri;
2243 }
2244
2245 static ClickableText *textview_get_uri(TextView *textview,
2246                                    GtkTextIter *iter,
2247                                    GtkTextTag *tag)
2248 {
2249         GtkTextIter start_iter, end_iter;
2250         ClickableText *uri = NULL;
2251
2252         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2253                                    &end_iter))
2254                 uri = textview_get_uri_from_range(textview, iter, tag,
2255                                                   &start_iter, &end_iter);
2256
2257         return uri;
2258 }
2259
2260 static void textview_shift_uris_after(TextView *textview, gint start, gint shift)
2261 {
2262         GSList *cur;
2263         for (cur = textview->uri_list; cur; cur = cur->next) {
2264                 ClickableText *uri = (ClickableText *)cur->data;
2265                 if (uri->start <= start)
2266                         continue;
2267                 uri->start += shift;
2268                 uri->end += shift;
2269         }
2270 }
2271
2272 static void textview_remove_uris_in(TextView *textview, gint start, gint end)
2273 {
2274         GSList *cur;
2275         for (cur = textview->uri_list; cur; ) {
2276                 ClickableText *uri = (ClickableText *)cur->data;
2277                 if (uri->start > start && uri->end < end) {
2278                         cur = cur->next;
2279                         textview->uri_list = g_slist_remove(textview->uri_list, uri);
2280                         g_free(uri->uri);
2281                         g_free(uri->filename);
2282                         if (uri->is_quote) {
2283                                 g_free(uri->fg_color);
2284                                 g_free(uri->data);
2285                                 /* (only free data in quotes uris) */
2286                         }
2287                         g_free(uri);
2288                 } else {
2289                         cur = cur->next;
2290                 }
2291
2292         }
2293 }
2294
2295 static void textview_toggle_quote(TextView *textview, ClickableText *uri, gboolean expand_only)
2296 {
2297         GtkTextIter start, end;
2298         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2299
2300         if (!uri->is_quote)
2301                 return;
2302
2303         if (uri->q_expanded && expand_only)
2304                 return;
2305
2306         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2307         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2308         if (textview->uri_hover)
2309                 gtk_text_buffer_remove_tag_by_name(buffer,
2310                                                    "link-hover",
2311                                                    &textview->uri_hover_start_iter,
2312                                                    &textview->uri_hover_end_iter);
2313         textview->uri_hover = NULL;
2314         gtk_text_buffer_remove_tag_by_name(buffer,
2315                                            "qlink",
2316                                            &start,
2317                                            &end);
2318         /* when shifting URIs start and end, we have to do it per-UTF8-char
2319          * so use g_utf8_strlen(). OTOH, when inserting in the text buffer,
2320          * we have to pass a number of bytes, so use strlen(). disturbing. */
2321
2322         if (!uri->q_expanded) {
2323                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2324                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2325                 textview_shift_uris_after(textview, uri->start,
2326                         g_utf8_strlen((gchar *)uri->data, -1)-strlen(" [...]\n"));
2327                 gtk_text_buffer_delete(buffer, &start, &end);
2328                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2329                 gtk_text_buffer_insert_with_tags_by_name
2330                                 (buffer, &start, (gchar *)uri->data,
2331                                  strlen((gchar *)uri->data)-1,
2332                                  "qlink", (gchar *)uri->fg_color, NULL);
2333                 uri->end = gtk_text_iter_get_offset(&start);
2334                 textview_make_clickable_parts_later(textview,
2335                                           uri->start, uri->end);
2336                 uri->q_expanded = TRUE;
2337         } else {
2338                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2339                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2340                 textview_remove_uris_in(textview, uri->start, uri->end);
2341                 textview_shift_uris_after(textview, uri->start,
2342                         strlen(" [...]\n")-g_utf8_strlen((gchar *)uri->data, -1));
2343                 gtk_text_buffer_delete(buffer, &start, &end);
2344                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2345                 gtk_text_buffer_insert_with_tags_by_name
2346                                 (buffer, &start, " [...]", -1,
2347                                  "qlink", (gchar *)uri->fg_color, NULL);
2348                 uri->end = gtk_text_iter_get_offset(&start);
2349                 uri->q_expanded = FALSE;
2350         }
2351         if (textview->messageview->mainwin->cursor_count == 0) {
2352                 textview_cursor_normal(textview);
2353         } else {
2354                 textview_cursor_wait(textview);
2355         }
2356 }
2357 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2358                                             GdkEvent *event, GtkTextIter *iter,
2359                                             TextView *textview)
2360 {
2361         GdkEventButton *bevent;
2362         ClickableText *uri = NULL;
2363         char *tagname;
2364         gboolean qlink = FALSE;
2365
2366         if (!event)
2367                 return FALSE;
2368
2369         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2370                 && event->type != GDK_MOTION_NOTIFY)
2371                 return FALSE;
2372
2373         uri = textview_get_uri(textview, iter, tag);
2374         if (!uri)
2375                 return FALSE;
2376
2377         g_object_get(G_OBJECT(tag), "name", &tagname, NULL);
2378
2379         if (!strcmp(tagname, "qlink"))
2380                 qlink = TRUE;
2381
2382         g_free(tagname);
2383
2384         bevent = (GdkEventButton *) event;
2385
2386         /* doubleclick: open compose / add address / browser */
2387         if ((event->type == (qlink ? GDK_2BUTTON_PRESS:GDK_BUTTON_PRESS) && bevent->button == 1) ||
2388                 bevent->button == 2 || bevent->button == 3) {
2389                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2390                         MimeView *mimeview =
2391                                 (textview->messageview)?
2392                                         textview->messageview->mimeview:NULL;
2393                         if (mimeview && bevent->button == 1) {
2394                                 mimeview_handle_cmd(mimeview, uri->filename, NULL, uri->data);
2395                         } else if (mimeview && bevent->button == 2 &&
2396                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2397                                 mimeview_handle_cmd(mimeview, "sc://open_attachment", NULL, uri->data);
2398                         } else if (mimeview && bevent->button == 3 &&
2399                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2400                                 mimeview_handle_cmd(mimeview, "sc://menu_attachment", bevent, uri->data);
2401                         }
2402                         return TRUE;
2403                 } else if (qlink && bevent->button == 1) {
2404                         textview_toggle_quote(textview, uri, FALSE);
2405                         return TRUE;
2406
2407                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2408                         if (bevent->button == 3) {
2409                                 g_object_set_data(
2410                                         G_OBJECT(textview->mail_popup_menu),
2411                                         "menu_button", uri);
2412                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2413                                                NULL, NULL, NULL, NULL,
2414                                                bevent->button, bevent->time);
2415                         } else {
2416                                 PrefsAccount *account = NULL;
2417
2418                                 if (textview->messageview && textview->messageview->msginfo &&
2419                                     textview->messageview->msginfo->folder) {
2420                                         FolderItem   *folder_item;
2421
2422                                         folder_item = textview->messageview->msginfo->folder;
2423                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2424                                                 account = account_find_from_id(folder_item->prefs->default_account);
2425                                 }
2426                                 compose_new(account, uri->uri + 7, NULL);
2427                         }
2428                         return TRUE;
2429                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2430                         if (bevent->button == 1 &&
2431                             textview_uri_security_check(textview, uri) == TRUE)
2432                                         open_uri(uri->uri,
2433                                                  prefs_common.uri_cmd);
2434                         else if (bevent->button == 3 && !qlink) {
2435                                 g_object_set_data(
2436                                         G_OBJECT(textview->link_popup_menu),
2437                                         "menu_button", uri);
2438                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2439                                                NULL, NULL, NULL, NULL,
2440                                                bevent->button, bevent->time);
2441                         }
2442                         return TRUE;
2443                 } else {
2444                         if (bevent->button == 3 && !qlink) {
2445                                 g_object_set_data(
2446                                         G_OBJECT(textview->file_popup_menu),
2447                                         "menu_button", uri);
2448                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2449                                                NULL, NULL, NULL, NULL,
2450                                                bevent->button, bevent->time);
2451                                 return TRUE;
2452                         }
2453                 }
2454         }
2455
2456         return FALSE;
2457 }
2458
2459 /*!
2460  *\brief    Check to see if a web URL has been disguised as a different
2461  *          URL (possible with HTML email).
2462  *
2463  *\param    uri The uri to check
2464  *
2465  *\param    textview The TextView the URL is contained in
2466  *
2467  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2468  *          it anyway, otherwise FALSE
2469  */
2470 static gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
2471 {
2472         gchar *visible_str;
2473         gboolean retval = TRUE;
2474         GtkTextBuffer *buffer;
2475         GtkTextIter start, end;
2476
2477         if (is_uri_string(uri->uri) == FALSE)
2478                 return TRUE;
2479
2480         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2481
2482         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2483         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2484
2485         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2486
2487         if (visible_str == NULL)
2488                 return TRUE;
2489
2490         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2491                 gchar *uri_path;
2492                 gchar *visible_uri_path;
2493
2494                 uri_path = get_uri_path(uri->uri);
2495                 visible_uri_path = get_uri_path(visible_str);
2496                 if (path_cmp(uri_path, visible_uri_path) != 0)
2497                         retval = FALSE;
2498         }
2499
2500         if (retval == FALSE) {
2501                 gchar *msg;
2502                 AlertValue aval;
2503
2504                 msg = g_markup_printf_escaped(_("The real URL is different from "
2505                                                 "the displayed URL.\n"
2506                                                 "\n"
2507                                                 "<b>Displayed URL:</b> %s\n"
2508                                                 "\n"
2509                                                 "<b>Real URL:</b> %s\n"
2510                                                 "\n"
2511                                                 "Open it anyway?"),
2512                                                visible_str,uri->uri);
2513                 aval = alertpanel_full(_("Phishing attempt warning"), msg,
2514                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2515                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2516                 g_free(msg);
2517                 if (aval == G_ALERTALTERNATE)
2518                         retval = TRUE;
2519         }
2520
2521         g_free(visible_str);
2522
2523         return retval;
2524 }
2525
2526 static void textview_uri_list_remove_all(GSList *uri_list)
2527 {
2528         GSList *cur;
2529
2530         for (cur = uri_list; cur != NULL; cur = cur->next) {
2531                 if (cur->data) {
2532                         g_free(((ClickableText *)cur->data)->uri);
2533                         g_free(((ClickableText *)cur->data)->filename);
2534                         if (((ClickableText *)cur->data)->is_quote) {
2535                                 g_free(((ClickableText *)cur->data)->fg_color);
2536                                 g_free(((ClickableText *)cur->data)->data);
2537                                 /* (only free data in quotes uris) */
2538                         }
2539                         g_free(cur->data);
2540                 }
2541         }
2542
2543         g_slist_free(uri_list);
2544 }
2545
2546 static void open_uri_cb (TextView *textview, guint action, void *data)
2547 {
2548         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2549                                            "menu_button");
2550         if (uri == NULL)
2551                 return;
2552
2553         if (textview_uri_security_check(textview, uri) == TRUE)
2554                 open_uri(uri->uri,
2555                          prefs_common.uri_cmd);
2556         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2557                           NULL);
2558 }
2559
2560 static void open_image_cb (TextView *textview, guint action, void *data)
2561 {
2562         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2563                                            "menu_button");
2564
2565         static gchar *default_cmdline = DEFAULT_IMAGE_VIEWER_CMD;
2566         gchar buf[1024];
2567         const gchar *cmd;
2568         const gchar *def_cmd;
2569         const gchar *p;
2570         gchar *filename = NULL;
2571         gchar *tmp_filename = NULL;
2572
2573         if (uri == NULL)
2574                 return;
2575
2576         if (uri->filename == NULL)
2577                 return;
2578
2579         filename = g_strdup(uri->filename);
2580
2581         if (!g_utf8_validate(filename, -1, NULL)) {
2582                 gchar *tmp = conv_filename_to_utf8(filename);
2583                 g_free(filename);
2584                 filename = tmp;
2585         }
2586
2587         subst_for_filename(filename);
2588
2589         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2590         copy_file(tmp_filename, filename, FALSE);
2591         g_free(tmp_filename);
2592
2593         cmd = prefs_common.mime_image_viewer;
2594         def_cmd = default_cmdline;
2595
2596         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2597             !strchr(p + 2, '%'))
2598                 g_snprintf(buf, sizeof(buf), cmd, filename);
2599         else {
2600                 if (cmd)
2601                         g_warning("Image viewer command line is invalid: '%s'", cmd);
2602                 if (def_cmd)
2603                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
2604                 else
2605                         return;
2606         }
2607
2608         execute_command_line(buf, TRUE);
2609
2610         g_free(filename);
2611
2612         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2613                           NULL);
2614 }
2615
2616 static void save_file_cb (TextView *textview, guint action, void *data)
2617 {
2618         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2619                                            "menu_button");
2620         gchar *filename = NULL;
2621         gchar *filepath = NULL;
2622         gchar *filedir = NULL;
2623         gchar *tmp_filename = NULL;
2624         if (uri == NULL)
2625                 return;
2626
2627         if (uri->filename == NULL)
2628                 return;
2629
2630         filename = g_strdup(uri->filename);
2631
2632         if (!g_utf8_validate(filename, -1, NULL)) {
2633                 gchar *tmp = conv_filename_to_utf8(filename);
2634                 g_free(filename);
2635                 filename = tmp;
2636         }
2637
2638         subst_for_filename(filename);
2639
2640         if (prefs_common.attach_save_dir)
2641                 filepath = g_strconcat(prefs_common.attach_save_dir,
2642                                        G_DIR_SEPARATOR_S, filename, NULL);
2643         else
2644                 filepath = g_strdup(filename);
2645
2646         g_free(filename);
2647
2648         filename = filesel_select_file_save(_("Save as"), filepath);
2649         if (!filename) {
2650                 g_free(filepath);
2651                 return;
2652         }
2653
2654         if (is_file_exist(filename)) {
2655                 AlertValue aval;
2656                 gchar *res;
2657
2658                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2659                                       filename);
2660                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2661                                   GTK_STOCK_OK, NULL);
2662                 g_free(res);
2663                 if (G_ALERTALTERNATE != aval)
2664                         return;
2665         }
2666
2667         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2668         copy_file(tmp_filename, filename, FALSE);
2669         g_free(tmp_filename);
2670
2671         filedir = g_path_get_dirname(filename);
2672         if (filedir && strcmp(filedir, ".")) {
2673                 g_free(prefs_common.attach_save_dir);
2674                 prefs_common.attach_save_dir = g_strdup(filedir);
2675         }
2676
2677         g_free(filedir);
2678         g_free(filepath);
2679
2680         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2681                           NULL);
2682 }
2683
2684 static void copy_uri_cb (TextView *textview, guint action, void *data)
2685 {
2686         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2687                                            "menu_button");
2688         if (uri == NULL)
2689                 return;
2690
2691         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2692         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2693         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2694                           NULL);
2695 }
2696
2697 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2698 {
2699         gchar *fromname, *fromaddress;
2700         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2701                                            "menu_button");
2702         if (uri == NULL)
2703                 return;
2704
2705         /* extract url */
2706         fromaddress = g_strdup(uri->uri + 7);
2707         /* Hiroyuki: please put this function in utils.c! */
2708         fromname = procheader_get_fromname(fromaddress);
2709         extract_address(fromaddress);
2710         g_message("adding from textview %s <%s>", fromname, fromaddress);
2711         /* Add to address book - Match */
2712         addressbook_add_contact( fromname, fromaddress, NULL );
2713
2714         g_free(fromaddress);
2715         g_free(fromname);
2716 }
2717
2718 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2719 {
2720         PrefsAccount *account = NULL;
2721         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2722                                            "menu_button");
2723         if (uri == NULL)
2724                 return;
2725
2726         if (textview->messageview && textview->messageview->msginfo &&
2727             textview->messageview->msginfo->folder) {
2728                 FolderItem   *folder_item;
2729
2730                 folder_item = textview->messageview->msginfo->folder;
2731                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2732                         account = account_find_from_id(folder_item->prefs->default_account);
2733         }
2734         compose_new(account, uri->uri + 7, NULL);
2735 }
2736
2737 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2738 {
2739         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2740                                            "menu_button");
2741         if (uri == NULL)
2742                 return;
2743
2744         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2745         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2746         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2747                           NULL);
2748 }
2749