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