src/textview.c

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