src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail 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 #if HAVE_SYS_WAIT_H
  39 #include <sys/wait.h>
  40 #endif
  41 #if HAVE_LIBCOMPFACE
  42 #  include <compface.h>
  43 #endif
  44
  45 #if HAVE_LIBCOMPFACE
  46 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  47 #endif
  48
  49 #include "main.h"
  50 #include "summaryview.h"
  51 #include "procheader.h"
  52 #include "prefs_common.h"
  53 #include "codeconv.h"
  54 #include "utils.h"
  55 #include "gtkutils.h"
  56 #include "procmime.h"
  57 #include "html.h"
  58 #include "enriched.h"
  59 #include "compose.h"
  60 #include "addressbook.h"
  61 #include "displayheader.h"
  62 #include "account.h"
  63 #include "mimeview.h"
  64 #include "alertpanel.h"
  65 #include "menu.h"
  66 #include "image_viewer.h"
  67 #include "filesel.h"
  68 #include "base64.h"
  69 #include "inputdialog.h"
  70 #include "timing.h"
  71
  72 gint previousquotelevel = -1;
  73
  74 static GdkColor quote_colors[3] = {
  75         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  76         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  77         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  78 };
  79
  80 static GdkColor quote_bgcolors[3] = {
  81         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  82         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  83         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  84 };
  85 static GdkColor signature_color = {
  86         (gulong)0,
  87         (gushort)0x7fff,
  88         (gushort)0x7fff,
  89         (gushort)0x7fff
  90 };
  91
  92 static GdkColor uri_color = {
  93         (gulong)0,
  94         (gushort)0,
  95         (gushort)0,
  96         (gushort)0
  97 };
  98
  99 static GdkColor emphasis_color = {
 100         (gulong)0,
 101         (gushort)0,
 102         (gushort)0,
 103         (gushort)0xcfff
 104 };
 105
 106 static GdkCursor *hand_cursor = NULL;
 107 static GdkCursor *text_cursor = NULL;
 108 static GdkCursor *watch_cursor= NULL;
 109
 110 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 111 {       if (textview->messageview->statusbar)                               \
 112         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 113                            textview->messageview->statusbar_cid, str);      \
 114 }
 115
 116 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 117 {       if (textview->messageview->statusbar)                              \
 118         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 119                           textview->messageview->statusbar_cid);           \
 120 }
 121
 122 static void textview_show_ertf          (TextView       *textview,
 123                                          FILE           *fp,
 124                                          CodeConverter  *conv);
 125 static void textview_add_part           (TextView       *textview,
 126                                          MimeInfo       *mimeinfo);
 127 static void textview_add_parts          (TextView       *textview,
 128                                          MimeInfo       *mimeinfo);
 129 static void textview_write_body         (TextView       *textview,
 130                                          MimeInfo       *mimeinfo);
 131 static void textview_show_html          (TextView       *textview,
 132                                          FILE           *fp,
 133                                          CodeConverter  *conv);
 134
 135 static void textview_write_line         (TextView       *textview,
 136                                          const gchar    *str,
 137                                          CodeConverter  *conv,
 138                                          gboolean        do_quote_folding);
 139 static void textview_write_link         (TextView       *textview,
 140                                          const gchar    *str,
 141                                          const gchar    *uri,
 142                                          CodeConverter  *conv);
 143
 144 static GPtrArray *textview_scan_header  (TextView       *textview,
 145                                          FILE           *fp);
 146 static void textview_show_header        (TextView       *textview,
 147                                          GPtrArray      *headers);
 148
 149 static gint textview_key_pressed                (GtkWidget      *widget,
 150                                                  GdkEventKey    *event,
 151                                                  TextView       *textview);
 152 static gboolean textview_motion_notify          (GtkWidget      *widget,
 153                                                  GdkEventMotion *motion,
 154                                                  TextView       *textview);
 155 static gboolean textview_leave_notify           (GtkWidget        *widget,
 156                                                  GdkEventCrossing *event,
 157                                                  TextView         *textview);
 158 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 159                                                  GdkEventVisibility *event,
 160                                                  TextView       *textview);
 161 static void textview_uri_update                 (TextView       *textview,
 162                                                  gint           x,
 163                                                  gint           y);
 164 static gboolean textview_get_uri_range          (TextView       *textview,
 165                                                  GtkTextIter    *iter,
 166                                                  GtkTextTag     *tag,
 167                                                  GtkTextIter    *start_iter,
 168                                                  GtkTextIter    *end_iter);
 169 static ClickableText *textview_get_uri_from_range       (TextView       *textview,
 170                                                  GtkTextIter    *iter,
 171                                                  GtkTextTag     *tag,
 172                                                  GtkTextIter    *start_iter,
 173                                                  GtkTextIter    *end_iter);
 174 static ClickableText *textview_get_uri          (TextView       *textview,
 175                                                  GtkTextIter    *iter,
 176                                                  GtkTextTag     *tag);
 177 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 178                                                  GObject        *obj,
 179                                                  GdkEvent       *event,
 180                                                  GtkTextIter    *iter,
 181                                                  TextView       *textview);
 182
 183 static gboolean textview_uri_security_check     (TextView       *textview,
 184                                                  ClickableText  *uri);
 185 static void textview_uri_list_remove_all        (GSList         *uri_list);
 186
 187 static void textview_toggle_quote               (TextView       *textview,
 188                                                  GSList         *start_list,
 189                                                  ClickableText  *uri,
 190                                                  gboolean        expand_only);
 191
 192 static void open_uri_cb                         (TextView       *textview,
 193                                                  guint           action,
 194                                                  void           *data);
 195 static void copy_uri_cb                         (TextView       *textview,
 196                                                  guint           action,
 197                                                  void           *data);
 198 static void add_uri_to_addrbook_cb              (TextView       *textview,
 199                                                  guint           action,
 200                                                  void           *data);
 201 static void mail_to_uri_cb                      (TextView       *textview,
 202                                                  guint           action,
 203                                                  void           *data);
 204 static void copy_mail_to_uri_cb                 (TextView       *textview,
 205                                                  guint           action,
 206                                                  void           *data);
 207 static void save_file_cb                        (TextView       *textview,
 208                                                  guint           action,
 209                                                  void           *data);
 210 static void open_image_cb                       (TextView       *textview,
 211                                                  guint           action,
 212                                                  void           *data);
 213
 214 static GtkItemFactoryEntry textview_link_popup_entries[] =
 215 {
 216         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 217         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 218 };
 219
 220 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 221 {
 222         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 223         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 224         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 225 };
 226
 227 static GtkItemFactoryEntry textview_file_popup_entries[] =
 228 {
 229         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 230         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 231 };
 232
 233 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 234 {
 235 #ifndef WIDTH
 236 #  define WIDTH 48
 237 #  define HEIGHT 48
 238 #endif
 239         if (textview->image) {
 240                 gint x, y, x1;
 241                 x1 = textview->text->allocation.width - WIDTH - 5;
 242                 gtk_text_view_buffer_to_window_coords(
 243                         GTK_TEXT_VIEW(textview->text),
 244                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 245                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 246                         textview->image, x1, y);
 247         }
 248 }
 249
 250 static void textview_size_allocate_cb   (GtkWidget      *widget,
 251                                          GtkAllocation  *allocation,
 252                                          gpointer        data)
 253 {
 254         scrolled_cb(NULL, (TextView *)data);
 255 }
 256
 257 TextView *textview_create(void)
 258 {
 259         TextView *textview;
 260         GtkWidget *vbox;
 261         GtkWidget *scrolledwin;
 262         GtkWidget *text;
 263         GtkTextBuffer *buffer;
 264         GtkClipboard *clipboard;
 265         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 266         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 267         GtkAdjustment *adj;
 268         gint n_entries;
 269
 270         debug_print("Creating text view...\n");
 271         textview = g_new0(TextView, 1);
 272
 273         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 274         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 275                                        GTK_POLICY_AUTOMATIC,
 276                                        GTK_POLICY_AUTOMATIC);
 277         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 278                                             GTK_SHADOW_IN);
 279         gtk_widget_set_size_request
 280                 (scrolledwin, prefs_common.mainview_width, -1);
 281
 282         /* create GtkSText widgets for single-byte and multi-byte character */
 283         text = gtk_text_view_new();
 284         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 285         gtk_widget_show(text);
 286         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 287         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 288         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 289         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 290         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 291
 292         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 293         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 294         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 295
 296         gtk_widget_ensure_style(text);
 297
 298         gtk_widget_ref(scrolledwin);
 299
 300         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 301
 302         g_signal_connect(G_OBJECT(text), "key-press-event",
 303                          G_CALLBACK(textview_key_pressed), textview);
 304         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 305                          G_CALLBACK(textview_motion_notify), textview);
 306         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 307                          G_CALLBACK(textview_leave_notify), textview);
 308         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 309                          G_CALLBACK(textview_visibility_notify), textview);
 310         adj = gtk_scrolled_window_get_vadjustment(
 311                 GTK_SCROLLED_WINDOW(scrolledwin));
 312         g_signal_connect(G_OBJECT(adj), "value-changed",
 313                          G_CALLBACK(scrolled_cb), textview);
 314         g_signal_connect(G_OBJECT(text), "size_allocate",
 315                          G_CALLBACK(textview_size_allocate_cb),
 316                          textview);
 317
 318
 319         gtk_widget_show(scrolledwin);
 320
 321         vbox = gtk_vbox_new(FALSE, 0);
 322         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 323
 324         gtk_widget_show(vbox);
 325
 326         n_entries = sizeof(textview_link_popup_entries) /
 327                 sizeof(textview_link_popup_entries[0]);
 328         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 329                                       "<UriPopupMenu>", &link_popupfactory,
 330                                       textview);
 331
 332         n_entries = sizeof(textview_mail_popup_entries) /
 333                 sizeof(textview_mail_popup_entries[0]);
 334         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 335                                       "<UriPopupMenu>", &mail_popupfactory,
 336                                       textview);
 337
 338         n_entries = sizeof(textview_file_popup_entries) /
 339                 sizeof(textview_file_popup_entries[0]);
 340         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 341                                       "<FilePopupMenu>", &file_popupfactory,
 342                                       textview);
 343
 344         textview->vbox               = vbox;
 345         textview->scrolledwin        = scrolledwin;
 346         textview->text               = text;
 347         textview->uri_list           = NULL;
 348         textview->body_pos           = 0;
 349         textview->show_all_headers   = FALSE;
 350         textview->last_buttonpress   = GDK_NOTHING;
 351         textview->link_popup_menu    = link_popupmenu;
 352         textview->link_popup_factory = link_popupfactory;
 353         textview->mail_popup_menu    = mail_popupmenu;
 354         textview->mail_popup_factory = mail_popupfactory;
 355         textview->file_popup_menu    = file_popupmenu;
 356         textview->file_popup_factory = file_popupfactory;
 357         textview->image              = NULL;
 358         return textview;
 359 }
 360
 361 static void textview_create_tags(GtkTextView *text, TextView *textview)
 362 {
 363         GtkTextBuffer *buffer;
 364         GtkTextTag *tag, *qtag;
 365         static PangoFontDescription *font_desc, *bold_font_desc;
 366
 367         if (!font_desc)
 368                 font_desc = pango_font_description_from_string
 369                         (NORMAL_FONT);
 370
 371         if (!bold_font_desc) {
 372                 bold_font_desc = pango_font_description_from_string
 373                         (NORMAL_FONT);
 374                 pango_font_description_set_weight
 375                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 376         }
 377
 378         buffer = gtk_text_view_get_buffer(text);
 379
 380         gtk_text_buffer_create_tag(buffer, "header",
 381                                    "pixels-above-lines", 0,
 382                                    "pixels-above-lines-set", TRUE,
 383                                    "pixels-below-lines", 0,
 384                                    "pixels-below-lines-set", TRUE,
 385                                    "font-desc", font_desc,
 386                                    "left-margin", 3,
 387                                    "left-margin-set", TRUE,
 388                                    NULL);
 389         gtk_text_buffer_create_tag(buffer, "header_title",
 390                                    "font-desc", bold_font_desc,
 391                                    NULL);
 392         tag = gtk_text_buffer_create_tag(buffer, "hlink",
 393                                    "pixels-above-lines", 0,
 394                                    "pixels-above-lines-set", TRUE,
 395                                    "pixels-below-lines", 0,
 396                                    "pixels-below-lines-set", TRUE,
 397                                    "font-desc", font_desc,
 398                                    "left-margin", 3,
 399                                    "left-margin-set", TRUE,
 400                                    "foreground-gdk", &uri_color,
 401                                    NULL);
 402         g_signal_connect(G_OBJECT(tag), "event",
 403                          G_CALLBACK(textview_uri_button_pressed), textview);
 404         if (prefs_common.enable_bgcolor) {
 405                 gtk_text_buffer_create_tag(buffer, "quote0",
 406                                 "foreground-gdk", &quote_colors[0],
 407                                 "paragraph-background-gdk", &quote_bgcolors[0],
 408                                 NULL);
 409                 gtk_text_buffer_create_tag(buffer, "quote1",
 410                                 "foreground-gdk", &quote_colors[1],
 411                                 "paragraph-background-gdk", &quote_bgcolors[1],
 412                                 NULL);
 413                 gtk_text_buffer_create_tag(buffer, "quote2",
 414                                 "foreground-gdk", &quote_colors[2],
 415                                 "paragraph-background-gdk", &quote_bgcolors[2],
 416                                 NULL);
 417         } else {
 418                 gtk_text_buffer_create_tag(buffer, "quote0",
 419                                 "foreground-gdk", &quote_colors[0],
 420                                 NULL);
 421                 gtk_text_buffer_create_tag(buffer, "quote1",
 422                                 "foreground-gdk", &quote_colors[1],
 423                                 NULL);
 424                 gtk_text_buffer_create_tag(buffer, "quote2",
 425                                 "foreground-gdk", &quote_colors[2],
 426                                 NULL);
 427         }
 428         gtk_text_buffer_create_tag(buffer, "emphasis",
 429                         "foreground-gdk", &emphasis_color,
 430                         NULL);
 431         gtk_text_buffer_create_tag(buffer, "signature",
 432                         "foreground-gdk", &signature_color,
 433                         NULL);
 434         tag = gtk_text_buffer_create_tag(buffer, "link",
 435                         "foreground-gdk", &uri_color,
 436                         NULL);
 437         qtag = gtk_text_buffer_create_tag(buffer, "qlink",
 438                         NULL);
 439         gtk_text_buffer_create_tag(buffer, "link-hover",
 440                         "underline", PANGO_UNDERLINE_SINGLE,
 441                         NULL);
 442         g_signal_connect(G_OBJECT(qtag), "event",
 443                          G_CALLBACK(textview_uri_button_pressed), textview);
 444         g_signal_connect(G_OBJECT(tag), "event",
 445                          G_CALLBACK(textview_uri_button_pressed), textview);
 446  }
 447
 448 void textview_init(TextView *textview)
 449 {
 450         if (!hand_cursor)
 451                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 452         if (!text_cursor)
 453                 text_cursor = gdk_cursor_new(GDK_XTERM);
 454         if (!watch_cursor)
 455                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 456
 457         textview_reflect_prefs(textview);
 458         textview_set_all_headers(textview, FALSE);
 459         textview_set_font(textview, NULL);
 460         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 461 }
 462
 463 #if GTK_CHECK_VERSION(2, 8, 0)
 464  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 465         tag = gtk_text_tag_table_lookup(tags, tagname); \
 466         if (tag) \
 467                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 468  }
 469 #else
 470  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 471         tag = gtk_text_tag_table_lookup(tags, tagname); \
 472         if (tag) \
 473                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, NULL); \
 474  }
 475 #endif
 476
 477 static void textview_update_message_colors(TextView *textview)
 478 {
 479         GdkColor black = {0, 0, 0, 0};
 480         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 481         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 482
 483         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 484         GtkTextTag *tag = NULL;
 485
 486         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 487         quote_colors[0] = quote_colors[1] = quote_colors[2] =
 488                 uri_color = emphasis_color = signature_color = black;
 489
 490         if (prefs_common.enable_color) {
 491                 /* grab the quote colors, converting from an int to a GdkColor */
 492                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 493                                                &quote_colors[0]);
 494                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 495                                                &quote_colors[1]);
 496                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 497                                                &quote_colors[2]);
 498                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 499                                                &uri_color);
 500                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 501                                                &signature_color);
 502                 emphasis_color = colored_emphasis;
 503         }
 504         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 505                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_bgcol,
 506                                                    &quote_bgcolors[0]);
 507                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_bgcol,
 508                                                    &quote_bgcolors[1]);
 509                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_bgcol,
 510                                                    &quote_bgcolors[2]);
 511                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 512                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 513                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 514         } else {
 515                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 516                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 517                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 518         }
 519
 520         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 521         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 522         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 523         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 524 }
 525 #undef CHANGE_TAG_COLOR
 526
 527 void textview_reflect_prefs(TextView *textview)
 528 {
 529         textview_set_font(textview, NULL);
 530         textview_update_message_colors(textview);
 531         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 532                                          prefs_common.textview_cursor_visible);
 533 }
 534
 535 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 536                            const gchar *file)
 537 {
 538         textview->loading = TRUE;
 539         textview->stop_loading = FALSE;
 540
 541         textview_clear(textview);
 542
 543         textview_add_parts(textview, mimeinfo);
 544
 545         textview_set_position(textview, 0);
 546
 547         textview->loading = FALSE;
 548         textview->stop_loading = FALSE;
 549 }
 550
 551 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 552 {
 553         START_TIMING("");
 554         g_return_if_fail(mimeinfo != NULL);
 555         g_return_if_fail(fp != NULL);
 556
 557         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 558             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 559                 textview->loading = TRUE;
 560                 textview->stop_loading = FALSE;
 561
 562                 textview_clear(textview);
 563                 textview_add_parts(textview, mimeinfo);
 564
 565                 textview->loading = FALSE;
 566                 textview->stop_loading = FALSE;
 567                 END_TIMING();
 568                 return;
 569         }
 570         textview->loading = TRUE;
 571         textview->stop_loading = FALSE;
 572
 573         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 574                 perror("fseek");
 575
 576         textview_clear(textview);
 577
 578         if (mimeinfo->type == MIMETYPE_MULTIPART)
 579                 textview_add_parts(textview, mimeinfo);
 580         else
 581                 textview_write_body(textview, mimeinfo);
 582
 583         textview->loading = FALSE;
 584         textview->stop_loading = FALSE;
 585         END_TIMING();
 586 }
 587
 588 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 589 {
 590         GtkTextView *text;
 591         GtkTextBuffer *buffer;
 592         GtkTextIter iter, start_iter;
 593         gchar buf[BUFFSIZE];
 594         GPtrArray *headers = NULL;
 595         const gchar *name;
 596         gchar *content_type;
 597         gint charcount;
 598         START_TIMING("");
 599
 600         g_return_if_fail(mimeinfo != NULL);
 601         text = GTK_TEXT_VIEW(textview->text);
 602         buffer = gtk_text_view_get_buffer(text);
 603         charcount = gtk_text_buffer_get_char_count(buffer);
 604         gtk_text_buffer_get_end_iter(buffer, &iter);
 605
 606         if (textview->stop_loading) {
 607                 return;
 608         }
 609         if (mimeinfo->type == MIMETYPE_MULTIPART) {
 610                 END_TIMING();
 611                 return;
 612         }
 613
 614         previousquotelevel = -1;
 615
 616         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 617                 FILE *fp;
 618
 619                 fp = g_fopen(mimeinfo->data.filename, "rb");
 620                 fseek(fp, mimeinfo->offset, SEEK_SET);
 621                 headers = textview_scan_header(textview, fp);
 622                 if (headers) {
 623                         if (charcount > 0)
 624                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 625                         textview_show_header(textview, headers);
 626                         procheader_header_array_destroy(headers);
 627                 }
 628                 fclose(fp);
 629                 END_TIMING();
 630                 return;
 631         }
 632
 633         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 634         content_type = procmime_get_content_type_str(mimeinfo->type,
 635                                                      mimeinfo->subtype);
 636         if (name == NULL)
 637                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 638         if (name != NULL)
 639                 g_snprintf(buf, sizeof(buf), _("[%s  %s (%d bytes)]"),
 640                            name, content_type, mimeinfo->length);
 641         else
 642                 g_snprintf(buf, sizeof(buf), _("[%s (%d bytes)]"),
 643                            content_type, mimeinfo->length);
 644
 645         g_free(content_type);
 646
 647         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 648         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 649             mimeinfo->type != MIMETYPE_TEXT)) {
 650                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 651                 TEXTVIEW_INSERT_LINK(buf, "sc://select_attachment", mimeinfo);
 652                 gtk_text_buffer_insert(buffer, &iter, " \n", -1);
 653                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 654                     prefs_common.inline_img ) {
 655                         GdkPixbuf *pixbuf;
 656                         GError *error = NULL;
 657                         gchar *filename;
 658                         ClickableText *uri;
 659                         gchar *uri_str;
 660                         gint err;
 661                         START_TIMING("inserting image");
 662
 663                         filename = procmime_get_tmp_file_name(mimeinfo);
 664
 665                         if ((err = procmime_get_part(filename, mimeinfo)) < 0) {
 666                                 g_warning("Can't get the image file.(%s)", strerror(-err));
 667                                 g_free(filename);
 668                                 END_TIMING();
 669                                 return;
 670                         }
 671
 672                         if (!prefs_common.resize_img) {
 673                                 pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 674                         } else {
 675                                 gint w, h;
 676                                 gdk_pixbuf_get_file_info(filename, &w, &h);
 677                                 if (textview->scrolledwin->allocation.width - 100 > 0 &&
 678                                     w > textview->scrolledwin->allocation.width - 100)
 679                                         pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
 680                                                 textview->scrolledwin->allocation.width - 100,
 681                                                 -1, TRUE, &error);
 682                                 else
 683                                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 684                         }
 685                         if (error != NULL) {
 686                                 g_warning("%s\n", error->message);
 687                                 g_error_free(error);
 688                         }
 689                         if (!pixbuf) {
 690                                 g_warning("Can't load the image.");
 691                                 g_free(filename);
 692                                 END_TIMING();
 693                                 return;
 694                         }
 695
 696                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 697                         if (uri_str) {
 698                                 uri = g_new0(ClickableText, 1);
 699                                 uri->uri = uri_str;
 700                                 uri->start = gtk_text_iter_get_offset(&iter);
 701
 702                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 703
 704                                 uri->end = uri->start + 1;
 705                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 706                                 textview->uri_list =
 707                                         g_slist_prepend(textview->uri_list, uri);
 708
 709                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 710                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 711                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 712                                                 &start_iter, &iter);
 713                         } else {
 714                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 715                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 716                         }
 717
 718                         g_object_unref(pixbuf);
 719                         g_free(filename);
 720                         END_TIMING();
 721                         GTK_EVENTS_FLUSH();
 722                 }
 723         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 724                 if (prefs_common.display_header && (charcount > 0))
 725                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 726
 727                 textview_write_body(textview, mimeinfo);
 728         }
 729         END_TIMING();
 730 }
 731
 732 static void recursive_add_parts(TextView *textview, GNode *node)
 733 {
 734         GNode * iter;
 735         MimeInfo *mimeinfo;
 736         START_TIMING("");
 737
 738         mimeinfo = (MimeInfo *) node->data;
 739
 740         textview_add_part(textview, mimeinfo);
 741
 742         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 743             (mimeinfo->type != MIMETYPE_MESSAGE)) {
 744                 END_TIMING();
 745                 return;
 746         }
 747         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 748                 GNode * prefered_body;
 749                 int prefered_score;
 750
 751                 /*
 752                   text/plain : score 3
 753                   text/ *    : score 2
 754                   other      : score 1
 755                 */
 756                 prefered_body = NULL;
 757                 prefered_score = 0;
 758
 759                 for (iter = g_node_first_child(node) ; iter != NULL ;
 760                      iter = g_node_next_sibling(iter)) {
 761                         int score;
 762                         MimeInfo * submime;
 763
 764                         score = 1;
 765                         submime = (MimeInfo *) iter->data;
 766                         if (submime->type == MIMETYPE_TEXT)
 767                                 score = 2;
 768
 769                         if (submime->subtype != NULL) {
 770                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 771                                         score = 3;
 772                         }
 773
 774                         if (score > prefered_score) {
 775                                 prefered_score = score;
 776                                 prefered_body = iter;
 777                         }
 778                 }
 779
 780                 if (prefered_body != NULL) {
 781                         recursive_add_parts(textview, prefered_body);
 782                 }
 783         }
 784         else {
 785                 for (iter = g_node_first_child(node) ; iter != NULL ;
 786                      iter = g_node_next_sibling(iter)) {
 787                         recursive_add_parts(textview, iter);
 788                 }
 789         }
 790         END_TIMING();
 791 }
 792
 793 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 794 {
 795         g_return_if_fail(mimeinfo != NULL);
 796
 797         recursive_add_parts(textview, mimeinfo->node);
 798 }
 799
 800 void textview_show_error(TextView *textview)
 801 {
 802         GtkTextView *text;
 803         GtkTextBuffer *buffer;
 804         GtkTextIter iter;
 805
 806         textview_set_font(textview, NULL);
 807         textview_clear(textview);
 808
 809         text = GTK_TEXT_VIEW(textview->text);
 810         buffer = gtk_text_view_get_buffer(text);
 811         gtk_text_buffer_get_start_iter(buffer, &iter);
 812
 813         TEXTVIEW_INSERT(_("\n"
 814                       "  This message can't be displayed.\n"
 815                       "  This is probably due to a network error.\n"
 816                       "\n"
 817                       "  Use "));
 818         TEXTVIEW_INSERT_LINK(_("'View Log'"), "sc://view_log", NULL);
 819         TEXTVIEW_INSERT(_(" in the Tools menu for more information."));
 820         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 821
 822 }
 823
 824 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 825 {
 826         GtkTextView *text;
 827         GtkTextBuffer *buffer;
 828         GtkTextIter iter;
 829
 830         if (!partinfo) return;
 831
 832         textview_set_font(textview, NULL);
 833         textview_clear(textview);
 834
 835         text = GTK_TEXT_VIEW(textview->text);
 836         buffer = gtk_text_view_get_buffer(text);
 837         gtk_text_buffer_get_start_iter(buffer, &iter);
 838
 839         TEXTVIEW_INSERT("\n");
 840         TEXTVIEW_INSERT(_("  The following can be performed on this part by\n"));
 841         TEXTVIEW_INSERT(_("  right-clicking the icon or list item:\n"));
 842
 843         TEXTVIEW_INSERT(_("     - To save, select "));
 844         TEXTVIEW_INSERT_LINK(_("'Save as...'"), "sc://save_as", NULL);
 845         TEXTVIEW_INSERT(_(" (Shortcut key: 'y')\n"));
 846         TEXTVIEW_INSERT(_("     - To display as text, select "));
 847         TEXTVIEW_INSERT_LINK(_("'Display as text'"), "sc://display_as_text", NULL);
 848         TEXTVIEW_INSERT(_(" (Shortcut key: 't')\n"));
 849         TEXTVIEW_INSERT(_("     - To open with an external program, select "));
 850         TEXTVIEW_INSERT_LINK(_("'Open'"), "sc://open", NULL);
 851         TEXTVIEW_INSERT(_(" (Shortcut key: 'l')\n"));
 852         TEXTVIEW_INSERT(_("       (alternately double-click, or click the middle "));
 853         TEXTVIEW_INSERT(_("mouse button)\n"));
 854         TEXTVIEW_INSERT(_("     - Or use "));
 855         TEXTVIEW_INSERT_LINK(_("'Open with...'"), "sc://open_with", NULL);
 856         TEXTVIEW_INSERT(_(" (Shortcut key: 'o')\n"));
 857         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 858 }
 859
 860 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 861 {
 862         FILE *tmpfp;
 863         gchar buf[BUFFSIZE];
 864         CodeConverter *conv;
 865         const gchar *charset, *p, *cmd;
 866         GSList *cur;
 867         int lines = 0;
 868
 869         if (textview->messageview->forced_charset)
 870                 charset = textview->messageview->forced_charset;
 871         else
 872                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 873
 874         textview_set_font(textview, charset);
 875
 876         conv = conv_code_converter_new(charset);
 877
 878         procmime_force_encoding(textview->messageview->forced_encoding);
 879
 880         textview->is_in_signature = FALSE;
 881
 882         procmime_decode_content(mimeinfo);
 883
 884         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 885             prefs_common.render_html) {
 886                 gchar *filename;
 887
 888                 filename = procmime_get_tmp_file_name(mimeinfo);
 889                 if (procmime_get_part(filename, mimeinfo) == 0) {
 890                         tmpfp = g_fopen(filename, "rb");
 891                         textview_show_html(textview, tmpfp, conv);
 892                         fclose(tmpfp);
 893                         g_unlink(filename);
 894                 }
 895                 g_free(filename);
 896         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 897                 gchar *filename;
 898
 899                 filename = procmime_get_tmp_file_name(mimeinfo);
 900                 if (procmime_get_part(filename, mimeinfo) == 0) {
 901                         tmpfp = g_fopen(filename, "rb");
 902                         textview_show_ertf(textview, tmpfp, conv);
 903                         fclose(tmpfp);
 904                         g_unlink(filename);
 905                 }
 906                 g_free(filename);
 907 #ifndef G_OS_WIN32
 908         } else if ( g_ascii_strcasecmp(mimeinfo->subtype, "plain") &&
 909                    (cmd = prefs_common.mime_textviewer) && *cmd &&
 910                    (p = strchr(cmd, '%')) && *(p + 1) == 's') {
 911                 int pid, pfd[2];
 912                 const gchar *fname;
 913
 914                 fname  = procmime_get_tmp_file_name(mimeinfo);
 915                 if (procmime_get_part(fname, mimeinfo)) goto textview_default;
 916
 917                 g_snprintf(buf, sizeof(buf), cmd, fname);
 918                 debug_print("Viewing text content of type: %s (length: %d) "
 919                         "using %s\n", mimeinfo->subtype, mimeinfo->length, buf);
 920
 921                 if (pipe(pfd) < 0) {
 922                         g_snprintf(buf, sizeof(buf),
 923                                 "pipe failed for textview\n\n%s\n", strerror(errno));
 924                         textview_write_line(textview, buf, conv, TRUE);
 925                         goto textview_default;
 926                 }
 927                 pid = fork();
 928                 if (pid < 0) {
 929                         g_snprintf(buf, sizeof(buf),
 930                                 "fork failed for textview\n\n%s\n", strerror(errno));
 931                         textview_write_line(textview, buf, conv, TRUE);
 932                         close(pfd[0]);
 933                         close(pfd[1]);
 934                         goto textview_default;
 935                 }
 936                 if (pid == 0) { /* child */
 937                         int rc;
 938                         gchar **argv;
 939                         argv = strsplit_with_quote(buf, " ", 0);
 940                         close(1);
 941                         close(pfd[0]);
 942                         dup(pfd[1]);
 943                         rc = execvp(argv[0], argv);
 944                         close(pfd[1]);
 945                         printf (_("The command to view attachment "
 946                                 "as text failed:\n"
 947                                 "    %s\n"
 948                                 "Exit code %d\n"), buf, rc);
 949                         exit(255);
 950                 }
 951                 close(pfd[1]);
 952                 tmpfp = fdopen(pfd[0], "rb");
 953                 while (fgets(buf, sizeof(buf), tmpfp)) {
 954                         textview_write_line(textview, buf, conv, TRUE);
 955
 956                         lines++;
 957                         if (lines % 500 == 0)
 958                                 GTK_EVENTS_FLUSH();
 959                         if (textview->stop_loading) {
 960                                 fclose(tmpfp);
 961                                 waitpid(pid, pfd, 0);
 962                                 unlink(fname);
 963                                 return;
 964                         }
 965                 }
 966
 967                 fclose(tmpfp);
 968                 waitpid(pid, pfd, 0);
 969                 unlink(fname);
 970 #endif
 971         } else {
 972 textview_default:
 973                 lines = 0;
 974                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 975                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 976                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 977                 while ((ftell(tmpfp) < mimeinfo->offset + mimeinfo->length) &&
 978                        (fgets(buf, sizeof(buf), tmpfp) != NULL)) {
 979                         textview_write_line(textview, buf, conv, TRUE);
 980                         lines++;
 981                         if (lines % 500 == 0)
 982                                 GTK_EVENTS_FLUSH();
 983                         if (textview->stop_loading) {
 984                                 fclose(tmpfp);
 985                                 return;
 986                         }
 987                 }
 988                 fclose(tmpfp);
 989         }
 990
 991         conv_code_converter_destroy(conv);
 992         procmime_force_encoding(0);
 993
 994         lines = 0;
 995         textview->uri_list = g_slist_reverse(textview->uri_list);
 996         for (cur = textview->uri_list; cur; cur = cur->next) {
 997                 ClickableText *uri = (ClickableText *)cur->data;
 998                 if (!uri->is_quote)
 999                         continue;
1000                 if (!prefs_common.hide_quotes ||
1001                     uri->quote_level+1 < prefs_common.hide_quotes) {
1002                         textview_toggle_quote(textview, cur, uri, TRUE);
1003                         lines++;
1004                         if (lines % 500 == 0)
1005                                 GTK_EVENTS_FLUSH();
1006                         if (textview->stop_loading) {
1007                                 return;
1008                         }
1009                 }
1010         }
1011 }
1012
1013 static void textview_show_html(TextView *textview, FILE *fp,
1014                                CodeConverter *conv)
1015 {
1016         SC_HTMLParser *parser;
1017         gchar *str;
1018         gint lines = 0;
1019
1020         parser = sc_html_parser_new(fp, conv);
1021         g_return_if_fail(parser != NULL);
1022
1023         while ((str = sc_html_parse(parser)) != NULL) {
1024                 if (parser->state == SC_HTML_HREF) {
1025                         /* first time : get and copy the URL */
1026                         if (parser->href == NULL) {
1027                                 /* ALF - the claws html parser returns an empty string,
1028                                  * if still inside an <a>, but already parsed past HREF */
1029                                 str = strtok(str, " ");
1030                                 if (str) {
1031                                         while (str && *str && g_ascii_isspace(*str))
1032                                                 str++;
1033                                         parser->href = g_strdup(str);
1034                                         /* the URL may (or not) be followed by the
1035                                          * referenced text */
1036                                         str = strtok(NULL, "");
1037                                 }
1038                         }
1039                         if (str != NULL)
1040                                 textview_write_link(textview, str, parser->href, NULL);
1041                 } else
1042                         textview_write_line(textview, str, NULL, FALSE);
1043                 lines++;
1044                 if (lines % 500 == 0)
1045                         GTK_EVENTS_FLUSH();
1046                 if (textview->stop_loading) {
1047                         return;
1048                 }
1049         }
1050         textview_write_line(textview, "\n", NULL, FALSE);
1051         sc_html_parser_destroy(parser);
1052 }
1053
1054 static void textview_show_ertf(TextView *textview, FILE *fp,
1055                                CodeConverter *conv)
1056 {
1057         ERTFParser *parser;
1058         gchar *str;
1059         gint lines = 0;
1060
1061         parser = ertf_parser_new(fp, conv);
1062         g_return_if_fail(parser != NULL);
1063
1064         while ((str = ertf_parse(parser)) != NULL) {
1065                 textview_write_line(textview, str, NULL, FALSE);
1066                 lines++;
1067                 if (lines % 500 == 0)
1068                         GTK_EVENTS_FLUSH();
1069                 if (textview->stop_loading) {
1070                         return;
1071                 }
1072         }
1073
1074         ertf_parser_destroy(parser);
1075 }
1076
1077 #define ADD_TXT_POS(bp_, ep_, pti_) \
1078         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1079                 last = last->next; \
1080                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1081                 last->next = NULL; \
1082         } else { \
1083                 g_warning("alloc error scanning URIs\n"); \
1084                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
1085                                                          linebuf, -1, \
1086                                                          fg_tag, NULL); \
1087                 return; \
1088         }
1089
1090 #define ADD_TXT_POS_LATER(bp_, ep_, pti_) \
1091         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1092                 last = last->next; \
1093                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1094                 last->next = NULL; \
1095         } else { \
1096                 g_warning("alloc error scanning URIs\n"); \
1097         }
1098
1099 /* textview_make_clickable_parts() - colorizes clickable parts */
1100 static void textview_make_clickable_parts(TextView *textview,
1101                                           const gchar *fg_tag,
1102                                           const gchar *uri_tag,
1103                                           const gchar *linebuf,
1104                                           gboolean hdr)
1105 {
1106         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1107         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1108         GtkTextIter iter;
1109         gchar *mybuf = g_strdup(linebuf);
1110
1111         /* parse table - in order of priority */
1112         struct table {
1113                 const gchar *needle; /* token */
1114
1115                 /* token search function */
1116                 gchar    *(*search)     (const gchar *haystack,
1117                                          const gchar *needle);
1118                 /* part parsing function */
1119                 gboolean  (*parse)      (const gchar *start,
1120                                          const gchar *scanpos,
1121                                          const gchar **bp_,
1122                                          const gchar **ep_,
1123                                          gboolean hdr);
1124                 /* part to URI function */
1125                 gchar    *(*build_uri)  (const gchar *bp,
1126                                          const gchar *ep);
1127         };
1128
1129         static struct table parser[] = {
1130                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1131                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1132                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1133                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1134                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1135                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1136                 {"@",        strcasestr, get_email_part, make_email_string}
1137         };
1138         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1139
1140         gint  n;
1141         const gchar *walk, *bp, *ep;
1142
1143         struct txtpos {
1144                 const gchar     *bp, *ep;       /* text position */
1145                 gint             pti;           /* index in parse table */
1146                 struct txtpos   *next;          /* next */
1147         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1148
1149         if (!g_utf8_validate(linebuf, -1, NULL)) {
1150                 g_free(mybuf);
1151                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1152                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1153         }
1154
1155         gtk_text_buffer_get_end_iter(buffer, &iter);
1156
1157         /* parse for clickable parts, and build a list of begin and end positions  */
1158         for (walk = mybuf, n = 0;;) {
1159                 gint last_index = PARSE_ELEMS;
1160                 gchar *scanpos = NULL;
1161
1162                 /* FIXME: this looks phony. scanning for anything in the parse table */
1163                 for (n = 0; n < PARSE_ELEMS; n++) {
1164                         gchar *tmp;
1165
1166                         tmp = parser[n].search(walk, parser[n].needle);
1167                         if (tmp) {
1168                                 if (scanpos == NULL || tmp < scanpos) {
1169                                         scanpos = tmp;
1170                                         last_index = n;
1171                                 }
1172                         }
1173                 }
1174
1175                 if (scanpos) {
1176                         /* check if URI can be parsed */
1177                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1178                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1179                                         ADD_TXT_POS(bp, ep, last_index);
1180                                         walk = ep;
1181                         } else
1182                                 walk = scanpos +
1183                                         strlen(parser[last_index].needle);
1184                 } else
1185                         break;
1186         }
1187
1188         /* colorize this line */
1189         if (head.next) {
1190                 const gchar *normal_text = mybuf;
1191
1192                 /* insert URIs */
1193                 for (last = head.next; last != NULL;
1194                      normal_text = last->ep, last = last->next) {
1195                         ClickableText *uri;
1196                         uri = g_new0(ClickableText, 1);
1197                         if (last->bp - normal_text > 0)
1198                                 gtk_text_buffer_insert_with_tags_by_name
1199                                         (buffer, &iter,
1200                                          normal_text,
1201                                          last->bp - normal_text,
1202                                          fg_tag, NULL);
1203                         uri->uri = parser[last->pti].build_uri(last->bp,
1204                                                                last->ep);
1205                         uri->start = gtk_text_iter_get_offset(&iter);
1206                         gtk_text_buffer_insert_with_tags_by_name
1207                                 (buffer, &iter, last->bp, last->ep - last->bp,
1208                                  uri_tag, fg_tag, NULL);
1209                         uri->end = gtk_text_iter_get_offset(&iter);
1210                         uri->filename = NULL;
1211                         textview->uri_list =
1212                                 g_slist_prepend(textview->uri_list, uri);
1213                 }
1214
1215                 if (*normal_text)
1216                         gtk_text_buffer_insert_with_tags_by_name
1217                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1218         } else {
1219                 gtk_text_buffer_insert_with_tags_by_name
1220                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1221         }
1222         g_free(mybuf);
1223 }
1224
1225 /* textview_make_clickable_parts() - colorizes clickable parts */
1226 static void textview_make_clickable_parts_later(TextView *textview,
1227                                           gint start, gint end)
1228 {
1229         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1230         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1231         GtkTextIter start_iter, end_iter;
1232         gchar *mybuf;
1233         gint offset = 0;
1234         /* parse table - in order of priority */
1235         struct table {
1236                 const gchar *needle; /* token */
1237
1238                 /* token search function */
1239                 gchar    *(*search)     (const gchar *haystack,
1240                                          const gchar *needle);
1241                 /* part parsing function */
1242                 gboolean  (*parse)      (const gchar *start,
1243                                          const gchar *scanpos,
1244                                          const gchar **bp_,
1245                                          const gchar **ep_,
1246                                          gboolean hdr);
1247                 /* part to URI function */
1248                 gchar    *(*build_uri)  (const gchar *bp,
1249                                          const gchar *ep);
1250         };
1251
1252         static struct table parser[] = {
1253                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1254                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1255                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1256                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1257                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1258                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1259                 {"@",        strcasestr, get_email_part, make_email_string}
1260         };
1261         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1262
1263         gint  n;
1264         const gchar *walk, *bp, *ep;
1265
1266         struct txtpos {
1267                 const gchar     *bp, *ep;       /* text position */
1268                 gint             pti;           /* index in parse table */
1269                 struct txtpos   *next;          /* next */
1270         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1271
1272         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start);
1273         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end);
1274         mybuf = gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
1275         offset = gtk_text_iter_get_offset(&start_iter);
1276
1277         /* parse for clickable parts, and build a list of begin and end positions  */
1278         for (walk = mybuf, n = 0;;) {
1279                 gint last_index = PARSE_ELEMS;
1280                 gchar *scanpos = NULL;
1281
1282                 /* FIXME: this looks phony. scanning for anything in the parse table */
1283                 for (n = 0; n < PARSE_ELEMS; n++) {
1284                         gchar *tmp;
1285
1286                         tmp = parser[n].search(walk, parser[n].needle);
1287                         if (tmp) {
1288                                 if (scanpos == NULL || tmp < scanpos) {
1289                                         scanpos = tmp;
1290                                         last_index = n;
1291                                 }
1292                         }
1293                 }
1294
1295                 if (scanpos) {
1296                         /* check if URI can be parsed */
1297                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, FALSE)
1298                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1299                                         ADD_TXT_POS_LATER(bp, ep, last_index);
1300                                         walk = ep;
1301                         } else
1302                                 walk = scanpos +
1303                                         strlen(parser[last_index].needle);
1304                 } else
1305                         break;
1306         }
1307
1308         /* colorize this line */
1309         if (head.next) {
1310                 /* insert URIs */
1311                 for (last = head.next; last != NULL; last = last->next) {
1312                         ClickableText *uri;
1313                         gint start_offset, end_offset;
1314                         gchar *tmp_str;
1315                         gchar old_char;
1316                         uri = g_new0(ClickableText, 1);
1317                         uri->uri = parser[last->pti].build_uri(last->bp,
1318                                                                last->ep);
1319
1320                         tmp_str = mybuf;
1321                         old_char = tmp_str[last->ep - mybuf];
1322                         tmp_str[last->ep - mybuf] = '\0';
1323                         end_offset = g_utf8_strlen(tmp_str, -1);
1324                         tmp_str[last->ep - mybuf] = old_char;
1325
1326                         old_char = tmp_str[last->bp - mybuf];
1327                         tmp_str[last->bp - mybuf] = '\0';
1328                         start_offset = g_utf8_strlen(tmp_str, -1);
1329                         tmp_str[last->bp - mybuf] = old_char;
1330
1331                         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start_offset + offset);
1332                         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end_offset + offset);
1333
1334                         uri->start = gtk_text_iter_get_offset(&start_iter);
1335
1336                         gtk_text_buffer_apply_tag_by_name(buffer, "link", &start_iter, &end_iter);
1337
1338                         uri->end = gtk_text_iter_get_offset(&end_iter);
1339                         uri->filename = NULL;
1340                         textview->uri_list =
1341                                 g_slist_prepend(textview->uri_list, uri);
1342                 }
1343         }
1344
1345         g_free(mybuf);
1346 }
1347
1348 #undef ADD_TXT_POS
1349
1350 static void textview_write_line(TextView *textview, const gchar *str,
1351                                 CodeConverter *conv, gboolean do_quote_folding)
1352 {
1353         GtkTextView *text;
1354         GtkTextBuffer *buffer;
1355         GtkTextIter iter;
1356         gchar buf[BUFFSIZE];
1357         gchar *fg_color;
1358         gint quotelevel = -1, real_quotelevel = -1;
1359         gchar quote_tag_str[10];
1360
1361         text = GTK_TEXT_VIEW(textview->text);
1362         buffer = gtk_text_view_get_buffer(text);
1363         gtk_text_buffer_get_end_iter(buffer, &iter);
1364
1365         if (!conv)
1366                 strncpy2(buf, str, sizeof(buf));
1367         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1368                 conv_localetodisp(buf, sizeof(buf), str);
1369
1370         strcrchomp(buf);
1371         fg_color = NULL;
1372
1373         /* change color of quotation
1374            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1375            Up to 3 levels of quotations are detected, and each
1376            level is colored using a different color. */
1377         if (prefs_common.enable_color
1378             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1379                 real_quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1380                 quotelevel = real_quotelevel;
1381                 /* set up the correct foreground color */
1382                 if (quotelevel > 2) {
1383                         /* recycle colors */
1384                         if (prefs_common.recycle_quote_colors)
1385                                 quotelevel %= 3;
1386                         else
1387                                 quotelevel = 2;
1388                 }
1389         }
1390
1391         if (quotelevel == -1)
1392                 fg_color = NULL;
1393         else {
1394                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1395                            "quote%d", quotelevel);
1396                 fg_color = quote_tag_str;
1397         }
1398
1399         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1400                 fg_color = "signature";
1401                 textview->is_in_signature = TRUE;
1402         }
1403
1404         if (real_quotelevel > -1 && do_quote_folding) {
1405                 if (!g_utf8_validate(buf, -1, NULL)) {
1406                         gchar *utf8buf = NULL;
1407                         utf8buf = g_malloc(BUFFSIZE);
1408                         conv_localetodisp(utf8buf, BUFFSIZE, buf);
1409                         strncpy2(buf, utf8buf, BUFFSIZE-1);
1410                         g_free(utf8buf);
1411                 }
1412 do_quote:
1413                 if ( previousquotelevel != real_quotelevel ) {
1414                         ClickableText *uri;
1415                         uri = g_new0(ClickableText, 1);
1416                         uri->uri = g_strdup("");
1417                         uri->data = g_strdup(buf);
1418                         uri->start = gtk_text_iter_get_offset(&iter);
1419                         uri->is_quote = TRUE;
1420                         uri->quote_level = real_quotelevel;
1421                         uri->fg_color = g_strdup(fg_color);
1422
1423                         gtk_text_buffer_insert_with_tags_by_name
1424                                         (buffer, &iter, " [...]", -1,
1425                                          "qlink", fg_color, NULL);
1426                         uri->end = gtk_text_iter_get_offset(&iter);
1427                         gtk_text_buffer_insert(buffer, &iter, "  \n", -1);
1428
1429                         uri->filename = NULL;
1430                         textview->uri_list =
1431                                 g_slist_prepend(textview->uri_list, uri);
1432
1433                         previousquotelevel = real_quotelevel;
1434                 } else {
1435                         GSList *last = textview->uri_list;
1436                         ClickableText *lasturi = (ClickableText *)last->data;
1437                         gint e_len = 0, n_len = 0;
1438
1439                         if (lasturi->is_quote == FALSE) {
1440                                 previousquotelevel = -1;
1441                                 goto do_quote;
1442                         }
1443                         e_len = lasturi->data ? strlen(lasturi->data):0;
1444                         n_len = strlen(buf);
1445                         lasturi->data = g_realloc((gchar *)lasturi->data, e_len + n_len + 1);
1446                         strcpy((gchar *)lasturi->data + e_len, buf);
1447                         *((gchar *)lasturi->data + e_len + n_len) = '\0';
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_prepend(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         GtkTextBuffer *buffer;
1547         GtkClipboard *clipboard;
1548
1549         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1550         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
1551         gtk_text_buffer_remove_selection_clipboard(buffer, clipboard);
1552
1553         textview_uri_list_remove_all(textview->uri_list);
1554         textview->uri_list = NULL;
1555
1556         g_free(textview);
1557 }
1558
1559 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1560 {
1561         textview->show_all_headers = all_headers;
1562 }
1563
1564 #define CHANGE_TAG_FONT(tagname, font) { \
1565         tag = gtk_text_tag_table_lookup(tags, tagname); \
1566         if (tag) \
1567                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1568 }
1569
1570 void textview_set_font(TextView *textview, const gchar *codeset)
1571 {
1572         GtkTextTag *tag;
1573         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1574         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1575
1576         if (NORMAL_FONT) {
1577                 PangoFontDescription *font_desc, *bold_font_desc;
1578                 font_desc = pango_font_description_from_string
1579                                                 (NORMAL_FONT);
1580                 bold_font_desc = pango_font_description_from_string
1581                                                 (NORMAL_FONT);
1582                 if (font_desc) {
1583                         gtk_widget_modify_font(textview->text, font_desc);
1584                         CHANGE_TAG_FONT("header", font_desc);
1585                         CHANGE_TAG_FONT("hlink", font_desc);
1586                         pango_font_description_free(font_desc);
1587                 }
1588                 if (bold_font_desc) {
1589                         pango_font_description_set_weight
1590                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1591                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1592                         pango_font_description_free(bold_font_desc);
1593                 }
1594         }
1595
1596         if (prefs_common.textfont) {
1597                 PangoFontDescription *font_desc;
1598
1599                 font_desc = pango_font_description_from_string
1600                                                 (prefs_common.textfont);
1601                 if (font_desc) {
1602                         gtk_widget_modify_font(textview->text, font_desc);
1603                         pango_font_description_free(font_desc);
1604                 }
1605         }
1606         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1607                                              prefs_common.line_space / 2);
1608         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1609                                              prefs_common.line_space / 2);
1610 }
1611
1612 void textview_set_text(TextView *textview, const gchar *text)
1613 {
1614         GtkTextView *view;
1615         GtkTextBuffer *buffer;
1616
1617         g_return_if_fail(textview != NULL);
1618         g_return_if_fail(text != NULL);
1619
1620         textview_clear(textview);
1621
1622         view = GTK_TEXT_VIEW(textview->text);
1623         buffer = gtk_text_view_get_buffer(view);
1624         gtk_text_buffer_set_text(buffer, text, strlen(text));
1625 }
1626
1627 enum
1628 {
1629         H_DATE          = 0,
1630         H_FROM          = 1,
1631         H_TO            = 2,
1632         H_NEWSGROUPS    = 3,
1633         H_SUBJECT       = 4,
1634         H_CC            = 5,
1635         H_REPLY_TO      = 6,
1636         H_FOLLOWUP_TO   = 7,
1637         H_X_MAILER      = 8,
1638         H_X_NEWSREADER  = 9,
1639         H_USER_AGENT    = 10,
1640         H_ORGANIZATION  = 11,
1641 };
1642
1643 void textview_set_position(TextView *textview, gint pos)
1644 {
1645         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1646
1647         gtkut_text_view_set_position(text, pos);
1648 }
1649
1650 static gboolean header_is_internal(Header *header)
1651 {
1652         const gchar *internal_hdrs[] =
1653                 {"AF:", "NF:", "PS:", "SRH:", "SFN:", "DSR:", "MID:",
1654                  "CFG:", "PT:", "S:", "RQ:", "SSV:", "NSV:", "SSH:",
1655                  "R:", "MAID:", "SCF:", "RMID:", "FMID:", "NAID:",
1656                  "X-Claws-Account-Id:", "X-Claws-Sign:", "X-Claws-Encrypt:",
1657                  "X-Claws-Privacy-System:", "X-Claws-End-Special-Headers:",
1658                  "X-Sylpheed-Account-Id:", "X-Sylpheed-Sign:", "X-Sylpheed-Encrypt:",
1659                  "X-Sylpheed-Privacy-System:", "X-Sylpheed-End-Special-Headers:",
1660                  NULL};
1661         int i;
1662
1663         for (i = 0; internal_hdrs[i]; i++) {
1664                 if (!strcmp(header->name, internal_hdrs[i]))
1665                         return TRUE;
1666         }
1667         return FALSE;
1668 }
1669
1670 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1671 {
1672         gchar buf[BUFFSIZE];
1673         GPtrArray *headers, *sorted_headers;
1674         GSList *disphdr_list;
1675         Header *header;
1676         gint i;
1677
1678         g_return_val_if_fail(fp != NULL, NULL);
1679
1680         if (textview->show_all_headers) {
1681                 headers = procheader_get_header_array_asis(fp);
1682                 sorted_headers = g_ptr_array_new();
1683                 for (i = 0; i < headers->len; i++) {
1684                         header = g_ptr_array_index(headers, i);
1685                         if (!header_is_internal(header))
1686                                 g_ptr_array_add(sorted_headers, header);
1687                         else
1688                                 procheader_header_free(header);
1689                 }
1690                 g_ptr_array_free(headers, TRUE);
1691                 return sorted_headers;
1692         }
1693
1694         if (!prefs_common.display_header) {
1695                 while (fgets(buf, sizeof(buf), fp) != NULL)
1696                         if (buf[0] == '\r' || buf[0] == '\n') break;
1697                 return NULL;
1698         }
1699
1700         headers = procheader_get_header_array_asis(fp);
1701
1702         sorted_headers = g_ptr_array_new();
1703
1704         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1705              disphdr_list = disphdr_list->next) {
1706                 DisplayHeaderProp *dp =
1707                         (DisplayHeaderProp *)disphdr_list->data;
1708
1709                 for (i = 0; i < headers->len; i++) {
1710                         header = g_ptr_array_index(headers, i);
1711
1712                         if (procheader_headername_equal(header->name,
1713                                                         dp->name)) {
1714                                 if (dp->hidden)
1715                                         procheader_header_free(header);
1716                                 else
1717                                         g_ptr_array_add(sorted_headers, header);
1718
1719                                 g_ptr_array_remove_index(headers, i);
1720                                 i--;
1721                         }
1722                 }
1723         }
1724
1725         if (prefs_common.show_other_header) {
1726                 for (i = 0; i < headers->len; i++) {
1727                         header = g_ptr_array_index(headers, i);
1728                         if (!header_is_internal(header)) {
1729                                 g_ptr_array_add(sorted_headers, header);
1730                         } else {
1731                                 procheader_header_free(header);
1732                         }
1733                 }
1734                 g_ptr_array_free(headers, TRUE);
1735         } else
1736                 procheader_header_array_destroy(headers);
1737
1738
1739         return sorted_headers;
1740 }
1741
1742 static void textview_show_face(TextView *textview)
1743 {
1744         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1745         MsgInfo *msginfo = textview->messageview->msginfo;
1746         int x = 0;
1747
1748         if (prefs_common.display_header_pane
1749         ||  !prefs_common.display_xface)
1750                 goto bail;
1751
1752         if (!msginfo->extradata || !msginfo->extradata->face) {
1753                 goto bail;
1754         }
1755
1756         if (textview->image)
1757                 gtk_widget_destroy(textview->image);
1758
1759         textview->image = face_get_from_header(msginfo->extradata->face);
1760         g_return_if_fail(textview->image != NULL);
1761
1762         gtk_widget_show(textview->image);
1763
1764         x = textview->text->allocation.width - WIDTH -5;
1765
1766         gtk_text_view_add_child_in_window(text, textview->image,
1767                 GTK_TEXT_WINDOW_TEXT, x, 5);
1768
1769         gtk_widget_show_all(textview->text);
1770
1771
1772         return;
1773 bail:
1774         if (textview->image)
1775                 gtk_widget_destroy(textview->image);
1776         textview->image = NULL;
1777 }
1778
1779 void textview_show_icon(TextView *textview, const gchar *stock_id)
1780 {
1781         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1782         int x = 0;
1783
1784         if (textview->image)
1785                 gtk_widget_destroy(textview->image);
1786
1787         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
1788         g_return_if_fail(textview->image != NULL);
1789
1790         gtk_widget_show(textview->image);
1791
1792         x = textview->text->allocation.width - WIDTH -5;
1793
1794         gtk_text_view_add_child_in_window(text, textview->image,
1795                 GTK_TEXT_WINDOW_TEXT, x, 5);
1796
1797         gtk_widget_show_all(textview->text);
1798
1799
1800         return;
1801 }
1802
1803 #if HAVE_LIBCOMPFACE
1804 static void textview_show_xface(TextView *textview)
1805 {
1806         MsgInfo *msginfo = textview->messageview->msginfo;
1807         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1808         int x = 0;
1809         GdkWindow *window = NULL;
1810
1811         if (prefs_common.display_header_pane
1812         ||  !prefs_common.display_xface)
1813                 goto bail;
1814
1815         if (!msginfo || !msginfo->extradata)
1816                 goto bail;
1817
1818         if (msginfo->extradata->face)
1819                 return;
1820
1821         if (!msginfo->extradata->xface || strlen(msginfo->extradata->xface) < 5) {
1822                 goto bail;
1823         }
1824
1825         if (textview->image)
1826                 gtk_widget_destroy(textview->image);
1827
1828         window = mainwindow_get_mainwindow() ?
1829                         mainwindow_get_mainwindow()->window->window :
1830                         textview->text->window;
1831         textview->image = xface_get_from_header(msginfo->extradata->xface,
1832                                 &textview->text->style->white,
1833                                 window);
1834         g_return_if_fail(textview->image != NULL);
1835
1836         gtk_widget_show(textview->image);
1837
1838         x = textview->text->allocation.width - WIDTH -5;
1839
1840         gtk_text_view_add_child_in_window(text, textview->image,
1841                 GTK_TEXT_WINDOW_TEXT, x, 5);
1842
1843         gtk_widget_show_all(textview->text);
1844
1845         return;
1846 bail:
1847         if (textview->image)
1848                 gtk_widget_destroy(textview->image);
1849         textview->image = NULL;
1850
1851 }
1852 #endif
1853
1854 static void textview_show_header(TextView *textview, GPtrArray *headers)
1855 {
1856         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1857         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1858         GtkTextIter iter;
1859         Header *header;
1860         gint i;
1861
1862         g_return_if_fail(headers != NULL);
1863
1864         for (i = 0; i < headers->len; i++) {
1865                 header = g_ptr_array_index(headers, i);
1866                 g_return_if_fail(header->name != NULL);
1867
1868                 gtk_text_buffer_get_end_iter (buffer, &iter);
1869                 if(prefs_common.trans_hdr == TRUE) {
1870                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
1871                         gchar *trans_hdr = gettext(hdr);
1872                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1873                                 &iter, trans_hdr, -1,
1874                                 "header_title", "header", NULL);
1875                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1876                                 &iter, ":", 1, "header_title", "header", NULL);
1877                         g_free(hdr);
1878                 } else {
1879                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1880                                 &iter, header->name,
1881                                 -1, "header_title", "header", NULL);
1882                 }
1883                 if (header->name[strlen(header->name) - 1] != ' ')
1884                 gtk_text_buffer_insert_with_tags_by_name
1885                                 (buffer, &iter, " ", 1,
1886                                  "header_title", "header", NULL);
1887
1888                 if (procheader_headername_equal(header->name, "Subject") ||
1889                     procheader_headername_equal(header->name, "From")    ||
1890                     procheader_headername_equal(header->name, "To")      ||
1891                     procheader_headername_equal(header->name, "Cc"))
1892                         unfold_line(header->body);
1893
1894                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1895                      procheader_headername_equal(header->name,
1896                                                  "X-Newsreader")) &&
1897                     (strstr(header->body, "Claws Mail") != NULL ||
1898                      strstr(header->body, "Sylpheed-Claws") != NULL)) {
1899                         gtk_text_buffer_get_end_iter (buffer, &iter);
1900                         gtk_text_buffer_insert_with_tags_by_name
1901                                 (buffer, &iter, header->body, -1,
1902                                  "header", "emphasis", NULL);
1903                 } else {
1904                         gboolean hdr =
1905                           procheader_headername_equal(header->name, "From") ||
1906                           procheader_headername_equal(header->name, "To") ||
1907                           procheader_headername_equal(header->name, "Cc") ||
1908                           procheader_headername_equal(header->name, "Bcc") ||
1909                           procheader_headername_equal(header->name, "Reply-To") ||
1910                           procheader_headername_equal(header->name, "Sender");
1911                         textview_make_clickable_parts(textview, "header",
1912                                                       "hlink", header->body,
1913                                                       hdr);
1914                 }
1915                 gtk_text_buffer_get_end_iter (buffer, &iter);
1916                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1917                                                          "header", NULL);
1918         }
1919
1920         textview_show_face(textview);
1921 #if HAVE_LIBCOMPFACE
1922         textview_show_xface(textview);
1923 #endif
1924 }
1925
1926 gboolean textview_search_string(TextView *textview, const gchar *str,
1927                                 gboolean case_sens)
1928 {
1929         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1930
1931         return gtkut_text_view_search_string(text, str, case_sens);
1932 }
1933
1934 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1935                                          gboolean case_sens)
1936 {
1937         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1938
1939         return gtkut_text_view_search_string_backward(text, str, case_sens);
1940 }
1941
1942 void textview_scroll_one_line(TextView *textview, gboolean up)
1943 {
1944         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1945         GtkAdjustment *vadj = text->vadjustment;
1946
1947         gtkutils_scroll_one_line(GTK_WIDGET(text), vadj, up);
1948 }
1949
1950 gboolean textview_scroll_page(TextView *textview, gboolean up)
1951 {
1952         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1953         GtkAdjustment *vadj = text->vadjustment;
1954
1955         return gtkutils_scroll_page(GTK_WIDGET(text), vadj, up);
1956 }
1957
1958 #define KEY_PRESS_EVENT_STOP() \
1959         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1960                                        "key_press_event");
1961
1962 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1963                                  TextView *textview)
1964 {
1965         SummaryView *summaryview = NULL;
1966         MessageView *messageview = textview->messageview;
1967
1968         if (!event) return FALSE;
1969         if (messageview->mainwin)
1970                 summaryview = messageview->mainwin->summaryview;
1971
1972         switch (event->keyval) {
1973         case GDK_Tab:
1974         case GDK_Home:
1975         case GDK_Left:
1976         case GDK_Up:
1977         case GDK_Right:
1978         case GDK_Down:
1979         case GDK_Page_Up:
1980         case GDK_Page_Down:
1981         case GDK_End:
1982         case GDK_Control_L:
1983         case GDK_Control_R:
1984                 return FALSE;
1985         case GDK_space:
1986                 if (summaryview)
1987                         summary_pass_key_press_event(summaryview, event);
1988                 else
1989                         mimeview_scroll_page
1990                                 (messageview->mimeview,
1991                                  (event->state &
1992                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1993                 break;
1994         case GDK_BackSpace:
1995                 mimeview_scroll_page(messageview->mimeview, TRUE);
1996                 break;
1997         case GDK_Return:
1998                 mimeview_scroll_one_line
1999                         (messageview->mimeview, (event->state &
2000                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2001                 break;
2002         case GDK_Delete:
2003                 if (summaryview)
2004                         summary_pass_key_press_event(summaryview, event);
2005                 break;
2006         case GDK_y:
2007         case GDK_t:
2008         case GDK_l:
2009         case GDK_c:
2010                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
2011                         KEY_PRESS_EVENT_STOP();
2012                         mimeview_pass_key_press_event(messageview->mimeview,
2013                                                       event);
2014                         break;
2015                 }
2016                 /* possible fall through */
2017         default:
2018                 if (summaryview &&
2019                     event->window != messageview->mainwin->window->window) {
2020                         GdkEventKey tmpev = *event;
2021
2022                         tmpev.window = messageview->mainwin->window->window;
2023                         KEY_PRESS_EVENT_STOP();
2024                         gtk_widget_event(messageview->mainwin->window,
2025                                          (GdkEvent *)&tmpev);
2026                 }
2027                 break;
2028         }
2029
2030         return TRUE;
2031 }
2032
2033 static gboolean textview_motion_notify(GtkWidget *widget,
2034                                        GdkEventMotion *event,
2035                                        TextView *textview)
2036 {
2037         if (textview->loading)
2038                 return FALSE;
2039         textview_uri_update(textview, event->x, event->y);
2040         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
2041
2042         return FALSE;
2043 }
2044
2045 static gboolean textview_leave_notify(GtkWidget *widget,
2046                                       GdkEventCrossing *event,
2047                                       TextView *textview)
2048 {
2049         if (textview->loading)
2050                 return FALSE;
2051         textview_uri_update(textview, -1, -1);
2052
2053         return FALSE;
2054 }
2055
2056 static gboolean textview_visibility_notify(GtkWidget *widget,
2057                                            GdkEventVisibility *event,
2058                                            TextView *textview)
2059 {
2060         gint wx, wy;
2061         GdkWindow *window;
2062
2063         if (textview->loading)
2064                 return FALSE;
2065
2066         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
2067                                           GTK_TEXT_WINDOW_TEXT);
2068
2069         /* check if occurred for the text window part */
2070         if (window != event->window)
2071                 return FALSE;
2072
2073         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
2074         textview_uri_update(textview, wx, wy);
2075
2076         return FALSE;
2077 }
2078
2079 void textview_cursor_wait(TextView *textview)
2080 {
2081         GdkWindow *window = gtk_text_view_get_window(
2082                         GTK_TEXT_VIEW(textview->text),
2083                         GTK_TEXT_WINDOW_TEXT);
2084         textview_set_cursor(window, watch_cursor);
2085 }
2086
2087 void textview_cursor_normal(TextView *textview)
2088 {
2089         GdkWindow *window = gtk_text_view_get_window(
2090                         GTK_TEXT_VIEW(textview->text),
2091                         GTK_TEXT_WINDOW_TEXT);
2092         textview_set_cursor(window, text_cursor);
2093 }
2094
2095 static void textview_uri_update(TextView *textview, gint x, gint y)
2096 {
2097         GtkTextBuffer *buffer;
2098         GtkTextIter start_iter, end_iter;
2099         ClickableText *uri = NULL;
2100
2101         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2102
2103         if (x != -1 && y != -1) {
2104                 gint bx, by;
2105                 GtkTextIter iter;
2106                 GSList *tags;
2107                 GSList *cur;
2108
2109                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
2110                                                       GTK_TEXT_WINDOW_WIDGET,
2111                                                       x, y, &bx, &by);
2112                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
2113                                                    &iter, bx, by);
2114
2115                 tags = gtk_text_iter_get_tags(&iter);
2116                 for (cur = tags; cur != NULL; cur = cur->next) {
2117                         GtkTextTag *tag = cur->data;
2118                         char *name;
2119
2120                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
2121
2122                         if ((!strcmp(name, "link") || !strcmp(name, "hlink"))
2123                             && textview_get_uri_range(textview, &iter, tag,
2124                                                       &start_iter, &end_iter)) {
2125
2126                                 uri = textview_get_uri_from_range(textview,
2127                                                                   &iter, tag,
2128                                                                   &start_iter,
2129                                                                   &end_iter);
2130                         }
2131                         g_free(name);
2132                         if (uri)
2133                                 break;
2134                 }
2135                 g_slist_free(tags);
2136         }
2137
2138         if (uri != textview->uri_hover) {
2139                 GdkWindow *window;
2140
2141                 if (textview->uri_hover)
2142                         gtk_text_buffer_remove_tag_by_name(buffer,
2143                                                            "link-hover",
2144                                                            &textview->uri_hover_start_iter,
2145                                                            &textview->uri_hover_end_iter);
2146
2147                 textview->uri_hover = uri;
2148                 if (uri) {
2149                         textview->uri_hover_start_iter = start_iter;
2150                         textview->uri_hover_end_iter = end_iter;
2151                 }
2152
2153                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
2154                                                   GTK_TEXT_WINDOW_TEXT);
2155                 if (textview->messageview->mainwin->cursor_count == 0) {
2156                         textview_set_cursor(window, uri ? hand_cursor : text_cursor);
2157                 } else {
2158                         textview_set_cursor(window, watch_cursor);
2159                 }
2160
2161                 TEXTVIEW_STATUSBAR_POP(textview);
2162
2163                 if (uri) {
2164                         char *trimmed_uri;
2165
2166                         if (!uri->is_quote)
2167                                 gtk_text_buffer_apply_tag_by_name(buffer,
2168                                                           "link-hover",
2169                                                           &start_iter,
2170                                                           &end_iter);
2171
2172                         trimmed_uri = trim_string(uri->uri, 60);
2173                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
2174                         g_free(trimmed_uri);
2175                 }
2176         }
2177 }
2178
2179 static gboolean textview_get_uri_range(TextView *textview,
2180                                        GtkTextIter *iter,
2181                                        GtkTextTag *tag,
2182                                        GtkTextIter *start_iter,
2183                                        GtkTextIter *end_iter)
2184 {
2185         return get_tag_range(iter, tag, start_iter, end_iter);
2186 }
2187
2188 static ClickableText *textview_get_uri_from_range(TextView *textview,
2189                                               GtkTextIter *iter,
2190                                               GtkTextTag *tag,
2191                                               GtkTextIter *start_iter,
2192                                               GtkTextIter *end_iter)
2193 {
2194         gint start_pos, end_pos, cur_pos;
2195         ClickableText *uri = NULL;
2196         GSList *cur;
2197
2198         start_pos = gtk_text_iter_get_offset(start_iter);
2199         end_pos = gtk_text_iter_get_offset(end_iter);
2200         cur_pos = gtk_text_iter_get_offset(iter);
2201
2202         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
2203                 ClickableText *uri_ = (ClickableText *)cur->data;
2204                 if (start_pos == uri_->start &&
2205                     end_pos ==  uri_->end) {
2206                         uri = uri_;
2207                         break;
2208                 }
2209         }
2210         for (cur = textview->uri_list; uri == NULL && cur != NULL; cur = cur->next) {
2211                 ClickableText *uri_ = (ClickableText *)cur->data;
2212                 if (start_pos == uri_->start ||
2213                            end_pos == uri_->end) {
2214                         /* in case of contiguous links, textview_get_uri_range
2215                          * returns a broader range (start of 1st link to end
2216                          * of last link).
2217                          * In that case, correct link is the one covering
2218                          * current iter.
2219                          */
2220                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
2221                                 uri = uri_;
2222                                 break;
2223                         }
2224                 }
2225         }
2226
2227         return uri;
2228 }
2229
2230 static ClickableText *textview_get_uri(TextView *textview,
2231                                    GtkTextIter *iter,
2232                                    GtkTextTag *tag)
2233 {
2234         GtkTextIter start_iter, end_iter;
2235         ClickableText *uri = NULL;
2236
2237         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2238                                    &end_iter))
2239                 uri = textview_get_uri_from_range(textview, iter, tag,
2240                                                   &start_iter, &end_iter);
2241
2242         return uri;
2243 }
2244
2245 static void textview_shift_uris_after(TextView *textview, GSList *start_list, gint start, gint shift)
2246 {
2247         GSList *cur;
2248         if (!start_list)
2249                 start_list = textview->uri_list;
2250
2251         for (cur = start_list; cur; cur = cur->next) {
2252                 ClickableText *uri = (ClickableText *)cur->data;
2253                 if (uri->start <= start)
2254                         continue;
2255                 uri->start += shift;
2256                 uri->end += shift;
2257         }
2258 }
2259
2260 static void textview_remove_uris_in(TextView *textview, gint start, gint end)
2261 {
2262         GSList *cur;
2263         for (cur = textview->uri_list; cur; ) {
2264                 ClickableText *uri = (ClickableText *)cur->data;
2265                 if (uri->start > start && uri->end < end) {
2266                         cur = cur->next;
2267                         textview->uri_list = g_slist_remove(textview->uri_list, uri);
2268                         g_free(uri->uri);
2269                         g_free(uri->filename);
2270                         if (uri->is_quote) {
2271                                 g_free(uri->fg_color);
2272                                 g_free(uri->data);
2273                                 /* (only free data in quotes uris) */
2274                         }
2275                         g_free(uri);
2276                 } else {
2277                         cur = cur->next;
2278                 }
2279
2280         }
2281 }
2282
2283 static void textview_toggle_quote(TextView *textview, GSList *start_list, ClickableText *uri, gboolean expand_only)
2284 {
2285         GtkTextIter start, end;
2286         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2287
2288         if (!uri->is_quote)
2289                 return;
2290
2291         if (uri->q_expanded && expand_only)
2292                 return;
2293
2294         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2295         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2296         if (textview->uri_hover)
2297                 gtk_text_buffer_remove_tag_by_name(buffer,
2298                                                    "link-hover",
2299                                                    &textview->uri_hover_start_iter,
2300                                                    &textview->uri_hover_end_iter);
2301         textview->uri_hover = NULL;
2302         gtk_text_buffer_remove_tag_by_name(buffer,
2303                                            "qlink",
2304                                            &start,
2305                                            &end);
2306         /* when shifting URIs start and end, we have to do it per-UTF8-char
2307          * so use g_utf8_strlen(). OTOH, when inserting in the text buffer,
2308          * we have to pass a number of bytes, so use strlen(). disturbing. */
2309
2310         if (!uri->q_expanded) {
2311                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2312                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2313                 textview_shift_uris_after(textview, start_list, uri->start,
2314                         g_utf8_strlen((gchar *)uri->data, -1)-strlen(" [...]\n"));
2315                 gtk_text_buffer_delete(buffer, &start, &end);
2316                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2317                 gtk_text_buffer_insert_with_tags_by_name
2318                                 (buffer, &start, (gchar *)uri->data,
2319                                  strlen((gchar *)uri->data)-1,
2320                                  "qlink", (gchar *)uri->fg_color, NULL);
2321                 uri->end = gtk_text_iter_get_offset(&start);
2322                 textview_make_clickable_parts_later(textview,
2323                                           uri->start, uri->end);
2324                 uri->q_expanded = TRUE;
2325         } else {
2326                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2327                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2328                 textview_remove_uris_in(textview, uri->start, uri->end);
2329                 textview_shift_uris_after(textview, start_list, uri->start,
2330                         strlen(" [...]\n")-g_utf8_strlen((gchar *)uri->data, -1));
2331                 gtk_text_buffer_delete(buffer, &start, &end);
2332                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2333                 gtk_text_buffer_insert_with_tags_by_name
2334                                 (buffer, &start, " [...]", -1,
2335                                  "qlink", (gchar *)uri->fg_color, NULL);
2336                 uri->end = gtk_text_iter_get_offset(&start);
2337                 uri->q_expanded = FALSE;
2338         }
2339         if (textview->messageview->mainwin->cursor_count == 0) {
2340                 textview_cursor_normal(textview);
2341         } else {
2342                 textview_cursor_wait(textview);
2343         }
2344 }
2345 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2346                                             GdkEvent *event, GtkTextIter *iter,
2347                                             TextView *textview)
2348 {
2349         GdkEventButton *bevent;
2350         ClickableText *uri = NULL;
2351         char *tagname;
2352         gboolean qlink = FALSE;
2353
2354         if (!event)
2355                 return FALSE;
2356
2357         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2358                 && event->type != GDK_MOTION_NOTIFY)
2359                 return FALSE;
2360
2361         uri = textview_get_uri(textview, iter, tag);
2362         if (!uri)
2363                 return FALSE;
2364
2365         g_object_get(G_OBJECT(tag), "name", &tagname, NULL);
2366
2367         if (!strcmp(tagname, "qlink"))
2368                 qlink = TRUE;
2369
2370         g_free(tagname);
2371
2372         bevent = (GdkEventButton *) event;
2373
2374         /* doubleclick: open compose / add address / browser */
2375         if (qlink && event->type == GDK_BUTTON_PRESS && bevent->button != 1) {
2376                 /* pass rightclick through */
2377                 return FALSE;
2378         } else if ((event->type == (qlink ? GDK_2BUTTON_PRESS:GDK_BUTTON_PRESS) && bevent->button == 1) ||
2379                 bevent->button == 2 || bevent->button == 3) {
2380                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2381                         MimeView *mimeview =
2382                                 (textview->messageview)?
2383                                         textview->messageview->mimeview:NULL;
2384                         if (mimeview && bevent->button == 1) {
2385                                 mimeview_handle_cmd(mimeview, uri->filename, NULL, uri->data);
2386                         } else if (mimeview && bevent->button == 2 &&
2387                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2388                                 mimeview_handle_cmd(mimeview, "sc://open_attachment", NULL, uri->data);
2389                         } else if (mimeview && bevent->button == 3 &&
2390                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2391                                 mimeview_handle_cmd(mimeview, "sc://menu_attachment", bevent, uri->data);
2392                         }
2393                         return TRUE;
2394                 } else if (qlink && bevent->button == 1) {
2395                         textview_toggle_quote(textview, NULL, uri, FALSE);
2396                         return TRUE;
2397                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2398                         if (bevent->button == 3) {
2399                                 g_object_set_data(
2400                                         G_OBJECT(textview->mail_popup_menu),
2401                                         "menu_button", uri);
2402                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2403                                                NULL, NULL, NULL, NULL,
2404                                                bevent->button, bevent->time);
2405                         } else {
2406                                 PrefsAccount *account = NULL;
2407                                 FolderItem   *folder_item = NULL;
2408                                 if (textview->messageview && textview->messageview->msginfo &&
2409                                     textview->messageview->msginfo->folder) {
2410
2411
2412                                         folder_item = textview->messageview->msginfo->folder;
2413                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2414                                                 account = account_find_from_id(folder_item->prefs->default_account);
2415                                 }
2416                                 compose_new_with_folderitem(account, folder_item, uri->uri + 7);
2417                         }
2418                         return TRUE;
2419                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2420                         if (bevent->button == 1 &&
2421                             textview_uri_security_check(textview, uri) == TRUE)
2422                                         open_uri(uri->uri,
2423                                                  prefs_common.uri_cmd);
2424                         else if (bevent->button == 3 && !qlink) {
2425                                 g_object_set_data(
2426                                         G_OBJECT(textview->link_popup_menu),
2427                                         "menu_button", uri);
2428                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2429                                                NULL, NULL, NULL, NULL,
2430                                                bevent->button, bevent->time);
2431                         }
2432                         return TRUE;
2433                 } else {
2434                         if (bevent->button == 3 && !qlink) {
2435                                 g_object_set_data(
2436                                         G_OBJECT(textview->file_popup_menu),
2437                                         "menu_button", uri);
2438                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2439                                                NULL, NULL, NULL, NULL,
2440                                                bevent->button, bevent->time);
2441                                 return TRUE;
2442                         }
2443                 }
2444         }
2445
2446         return FALSE;
2447 }
2448
2449 /*!
2450  *\brief    Check to see if a web URL has been disguised as a different
2451  *          URL (possible with HTML email).
2452  *
2453  *\param    uri The uri to check
2454  *
2455  *\param    textview The TextView the URL is contained in
2456  *
2457  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2458  *          it anyway, otherwise FALSE
2459  */
2460 static gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
2461 {
2462         gchar *visible_str;
2463         gboolean retval = TRUE;
2464         GtkTextBuffer *buffer;
2465         GtkTextIter start, end;
2466
2467         if (is_uri_string(uri->uri) == FALSE)
2468                 return TRUE;
2469
2470         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2471
2472         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2473         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2474
2475         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2476
2477         if (visible_str == NULL)
2478                 return TRUE;
2479
2480         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2481                 gchar *uri_path;
2482                 gchar *visible_uri_path;
2483
2484                 uri_path = get_uri_path(uri->uri);
2485                 visible_uri_path = get_uri_path(visible_str);
2486                 if (path_cmp(uri_path, visible_uri_path) != 0)
2487                         retval = FALSE;
2488         }
2489
2490         if (retval == FALSE) {
2491                 gchar *msg;
2492                 AlertValue aval;
2493
2494                 msg = g_markup_printf_escaped(_("The real URL is different from "
2495                                                 "the displayed URL.\n"
2496                                                 "\n"
2497                                                 "<b>Displayed URL:</b> %s\n"
2498                                                 "\n"
2499                                                 "<b>Real URL:</b> %s\n"
2500                                                 "\n"
2501                                                 "Open it anyway?"),
2502                                                visible_str,uri->uri);
2503                 aval = alertpanel_full(_("Phishing attempt warning"), msg,
2504                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2505                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2506                 g_free(msg);
2507                 if (aval == G_ALERTALTERNATE)
2508                         retval = TRUE;
2509         }
2510
2511         g_free(visible_str);
2512
2513         return retval;
2514 }
2515
2516 static void textview_uri_list_remove_all(GSList *uri_list)
2517 {
2518         GSList *cur;
2519
2520         for (cur = uri_list; cur != NULL; cur = cur->next) {
2521                 if (cur->data) {
2522                         g_free(((ClickableText *)cur->data)->uri);
2523                         g_free(((ClickableText *)cur->data)->filename);
2524                         if (((ClickableText *)cur->data)->is_quote) {
2525                                 g_free(((ClickableText *)cur->data)->fg_color);
2526                                 g_free(((ClickableText *)cur->data)->data);
2527                                 /* (only free data in quotes uris) */
2528                         }
2529                         g_free(cur->data);
2530                 }
2531         }
2532
2533         g_slist_free(uri_list);
2534 }
2535
2536 static void open_uri_cb (TextView *textview, guint action, void *data)
2537 {
2538         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2539                                            "menu_button");
2540         if (uri == NULL)
2541                 return;
2542
2543         if (textview_uri_security_check(textview, uri) == TRUE)
2544                 open_uri(uri->uri,
2545                          prefs_common.uri_cmd);
2546         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2547                           NULL);
2548 }
2549
2550 static void open_image_cb (TextView *textview, guint action, void *data)
2551 {
2552         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2553                                            "menu_button");
2554
2555         gchar *cmd = NULL;
2556         gchar buf[1024];
2557         const gchar *p;
2558         gchar *filename = NULL;
2559         gchar *tmp_filename = NULL;
2560
2561         if (uri == NULL)
2562                 return;
2563
2564         if (uri->filename == NULL)
2565                 return;
2566
2567         filename = g_strdup(uri->filename);
2568
2569         if (!g_utf8_validate(filename, -1, NULL)) {
2570                 gchar *tmp = conv_filename_to_utf8(filename);
2571                 g_free(filename);
2572                 filename = tmp;
2573         }
2574
2575         subst_for_filename(filename);
2576
2577         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2578         copy_file(tmp_filename, filename, FALSE);
2579         g_free(tmp_filename);
2580
2581         cmd = mailcap_get_command_for_type("image/jpeg", filename);
2582         if (cmd == NULL) {
2583                 gboolean remember = FALSE;
2584                 cmd = input_dialog_combo_remember
2585                         (_("Open with"),
2586                          _("Enter the command line to open file:\n"
2587                            "('%s' will be replaced with file name)"),
2588                          prefs_common.mime_open_cmd,
2589                          prefs_common.mime_open_cmd_history,
2590                          TRUE, &remember);
2591                 if (cmd && remember) {
2592                         mailcap_update_default("image/jpeg", cmd);
2593                 }
2594         }
2595         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2596             !strchr(p + 2, '%'))
2597                 g_snprintf(buf, sizeof(buf), cmd, filename);
2598         else {
2599                 g_warning("Image viewer command line is invalid: '%s'", cmd);
2600                 return;
2601         }
2602
2603         execute_command_line(buf, TRUE);
2604
2605         g_free(filename);
2606         g_free(cmd);
2607
2608         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2609                           NULL);
2610 }
2611
2612 static void save_file_cb (TextView *textview, guint action, void *data)
2613 {
2614         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2615                                            "menu_button");
2616         gchar *filename = NULL;
2617         gchar *filepath = NULL;
2618         gchar *filedir = NULL;
2619         gchar *tmp_filename = NULL;
2620         if (uri == NULL)
2621                 return;
2622
2623         if (uri->filename == NULL)
2624                 return;
2625
2626         filename = g_strdup(uri->filename);
2627
2628         if (!g_utf8_validate(filename, -1, NULL)) {
2629                 gchar *tmp = conv_filename_to_utf8(filename);
2630                 g_free(filename);
2631                 filename = tmp;
2632         }
2633
2634         subst_for_filename(filename);
2635
2636         if (prefs_common.attach_save_dir)
2637                 filepath = g_strconcat(prefs_common.attach_save_dir,
2638                                        G_DIR_SEPARATOR_S, filename, NULL);
2639         else
2640                 filepath = g_strdup(filename);
2641
2642         g_free(filename);
2643
2644         filename = filesel_select_file_save(_("Save as"), filepath);
2645         if (!filename) {
2646                 g_free(filepath);
2647                 return;
2648         }
2649
2650         if (is_file_exist(filename)) {
2651                 AlertValue aval;
2652                 gchar *res;
2653
2654                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2655                                       filename);
2656                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2657                                   GTK_STOCK_OK, NULL);
2658                 g_free(res);
2659                 if (G_ALERTALTERNATE != aval)
2660                         return;
2661         }
2662
2663         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2664         copy_file(tmp_filename, filename, FALSE);
2665         g_free(tmp_filename);
2666
2667         filedir = g_path_get_dirname(filename);
2668         if (filedir && strcmp(filedir, ".")) {
2669                 g_free(prefs_common.attach_save_dir);
2670                 prefs_common.attach_save_dir = g_filename_to_utf8(filedir, -1, NULL, NULL, NULL);
2671         }
2672
2673         g_free(filedir);
2674         g_free(filepath);
2675
2676         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2677                           NULL);
2678 }
2679
2680 static void copy_uri_cb (TextView *textview, guint action, void *data)
2681 {
2682         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2683                                            "menu_button");
2684         if (uri == NULL)
2685                 return;
2686
2687         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2688         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2689         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2690                           NULL);
2691 }
2692
2693 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2694 {
2695         gchar *fromname, *fromaddress;
2696         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2697                                            "menu_button");
2698         if (uri == NULL)
2699                 return;
2700
2701         /* extract url */
2702         fromaddress = g_strdup(uri->uri + 7);
2703         /* Hiroyuki: please put this function in utils.c! */
2704         fromname = procheader_get_fromname(fromaddress);
2705         extract_address(fromaddress);
2706
2707         /* Add to address book - Match */
2708         addressbook_add_contact( fromname, fromaddress, NULL );
2709
2710         g_free(fromaddress);
2711         g_free(fromname);
2712 }
2713
2714 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2715 {
2716         PrefsAccount *account = NULL;
2717         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2718                                            "menu_button");
2719         if (uri == NULL)
2720                 return;
2721
2722         if (textview->messageview && textview->messageview->msginfo &&
2723             textview->messageview->msginfo->folder) {
2724                 FolderItem   *folder_item;
2725
2726                 folder_item = textview->messageview->msginfo->folder;
2727                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2728                         account = account_find_from_id(folder_item->prefs->default_account);
2729         }
2730         compose_new(account, uri->uri + 7, NULL);
2731 }
2732
2733 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2734 {
2735         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2736                                            "menu_button");
2737         if (uri == NULL)
2738                 return;
2739
2740         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2741         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2742         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2743                           NULL);
2744 }
2745
2746 void textview_get_selection_offsets(TextView *textview, gint *sel_start, gint *sel_end)
2747 {
2748                 GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2749                 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
2750                 GtkTextIter start, end;
2751                 if (gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) {
2752                         if (sel_start)
2753                                 *sel_start = gtk_text_iter_get_offset(&start);
2754                         if (sel_end)
2755                                 *sel_end = gtk_text_iter_get_offset(&end);
2756                 } else {
2757                         if (sel_start)
2758                                 *sel_start = -1;
2759                         if (sel_end)
2760                                 *sel_end = -1;
2761                 }
2762 }