src/textview.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2016 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 3 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, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #  include "config.h"
  21 #include "claws-features.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/gtk.h>
  31 #include <stdio.h>
  32 #include <ctype.h>
  33 #include <string.h>
  34 #include <stdlib.h>
  35 #include <errno.h>
  36 #if HAVE_SYS_WAIT_H
  37 #include <sys/wait.h>
  38 #endif
  39
  40 #include "main.h"
  41 #include "summaryview.h"
  42 #include "procheader.h"
  43 #include "prefs_common.h"
  44 #include "codeconv.h"
  45 #include "utils.h"
  46 #include "gtkutils.h"
  47 #include "procmime.h"
  48 #include "html.h"
  49 #include "enriched.h"
  50 #include "compose.h"
  51 #ifndef USE_ALT_ADDRBOOK
  52         #include "addressbook.h"
  53         #include "addrindex.h"
  54 #else
  55         #include "addressbook-dbus.h"
  56         #include "addressadd.h"
  57 #endif
  58 #include "displayheader.h"
  59 #include "account.h"
  60 #include "mimeview.h"
  61 #include "alertpanel.h"
  62 #include "menu.h"
  63 #include "image_viewer.h"
  64 #include "filesel.h"
  65 #include "inputdialog.h"
  66 #include "timing.h"
  67 #include "tags.h"
  68 #include "manage_window.h"
  69 #include "folder_item_prefs.h"
  70 #include "hooks.h"
  71 #include "avatars.h"
  72
  73 static GdkColor quote_colors[3] = {
  74         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  75         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  76         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  77 };
  78
  79 static GdkColor quote_bgcolors[3] = {
  80         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  81         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  82         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  83 };
  84 static GdkColor signature_color = {
  85         (gulong)0,
  86         (gushort)0x7fff,
  87         (gushort)0x7fff,
  88         (gushort)0x7fff
  89 };
  90
  91 static GdkColor uri_color = {
  92         (gulong)0,
  93         (gushort)0,
  94         (gushort)0,
  95         (gushort)0
  96 };
  97
  98 static GdkColor emphasis_color = {
  99         (gulong)0,
 100         (gushort)0,
 101         (gushort)0,
 102         (gushort)0
 103 };
 104
 105 static GdkColor diff_added_color = {
 106         (gulong)0,
 107         (gushort)0,
 108         (gushort)0,
 109         (gushort)0
 110 };
 111
 112 static GdkColor diff_deleted_color = {
 113         (gulong)0,
 114         (gushort)0,
 115         (gushort)0,
 116         (gushort)0
 117 };
 118
 119 static GdkColor diff_hunk_color = {
 120         (gulong)0,
 121         (gushort)0,
 122         (gushort)0,
 123         (gushort)0
 124 };
 125
 126 static GdkColor tags_bgcolor = {
 127         (gulong)0,
 128         (gushort)0,
 129         (gushort)0,
 130         (gushort)0
 131 };
 132
 133 static GdkColor tags_color = {
 134         (gulong)0,
 135         (gushort)0,
 136         (gushort)0,
 137         (gushort)0
 138 };
 139
 140 static GdkCursor *hand_cursor = NULL;
 141 static GdkCursor *text_cursor = NULL;
 142 static GdkCursor *watch_cursor= NULL;
 143
 144 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 145 {       if (textview->messageview->statusbar)                               \
 146         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 147                            textview->messageview->statusbar_cid, str);      \
 148 }
 149
 150 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 151 {       if (textview->messageview->statusbar)                              \
 152         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 153                           textview->messageview->statusbar_cid);           \
 154 }
 155
 156 static void textview_show_ertf          (TextView       *textview,
 157                                          FILE           *fp,
 158                                          CodeConverter  *conv);
 159 static void textview_add_part           (TextView       *textview,
 160                                          MimeInfo       *mimeinfo);
 161 static void textview_add_parts          (TextView       *textview,
 162                                          MimeInfo       *mimeinfo);
 163 static void textview_write_body         (TextView       *textview,
 164                                          MimeInfo       *mimeinfo);
 165 static void textview_show_html          (TextView       *textview,
 166                                          FILE           *fp,
 167                                          CodeConverter  *conv);
 168
 169 static void textview_write_line         (TextView       *textview,
 170                                          const gchar    *str,
 171                                          CodeConverter  *conv,
 172                                          gboolean        do_quote_folding);
 173 static void textview_write_link         (TextView       *textview,
 174                                          const gchar    *str,
 175                                          const gchar    *uri,
 176                                          CodeConverter  *conv);
 177
 178 static GPtrArray *textview_scan_header  (TextView       *textview,
 179                                          FILE           *fp);
 180 static void textview_show_header        (TextView       *textview,
 181                                          GPtrArray      *headers);
 182
 183 static gint textview_key_pressed                (GtkWidget      *widget,
 184                                                  GdkEventKey    *event,
 185                                                  TextView       *textview);
 186 static gboolean textview_motion_notify          (GtkWidget      *widget,
 187                                                  GdkEventMotion *motion,
 188                                                  TextView       *textview);
 189 static gboolean textview_leave_notify           (GtkWidget        *widget,
 190                                                  GdkEventCrossing *event,
 191                                                  TextView         *textview);
 192 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 193                                                  GdkEventVisibility *event,
 194                                                  TextView       *textview);
 195 static void textview_uri_update                 (TextView       *textview,
 196                                                  gint           x,
 197                                                  gint           y);
 198 static gboolean textview_get_uri_range          (TextView       *textview,
 199                                                  GtkTextIter    *iter,
 200                                                  GtkTextTag     *tag,
 201                                                  GtkTextIter    *start_iter,
 202                                                  GtkTextIter    *end_iter);
 203 static ClickableText *textview_get_uri_from_range       (TextView       *textview,
 204                                                  GtkTextIter    *iter,
 205                                                  GtkTextTag     *tag,
 206                                                  GtkTextIter    *start_iter,
 207                                                  GtkTextIter    *end_iter);
 208 static ClickableText *textview_get_uri          (TextView       *textview,
 209                                                  GtkTextIter    *iter,
 210                                                  GtkTextTag     *tag);
 211 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 212                                                  GObject        *obj,
 213                                                  GdkEvent       *event,
 214                                                  GtkTextIter    *iter,
 215                                                  TextView       *textview);
 216
 217 static void textview_uri_list_remove_all        (GSList         *uri_list);
 218
 219 static void textview_toggle_quote               (TextView       *textview,
 220                                                  GSList         *start_list,
 221                                                  ClickableText  *uri,
 222                                                  gboolean        expand_only);
 223
 224 static void open_uri_cb                         (GtkAction      *action,
 225                                                  TextView       *textview);
 226 static void copy_uri_cb                         (GtkAction      *action,
 227                                                  TextView       *textview);
 228 static void add_uri_to_addrbook_cb              (GtkAction      *action,
 229                                                  TextView       *textview);
 230 static void reply_to_uri_cb                     (GtkAction      *action,
 231                                                  TextView       *textview);
 232 static void mail_to_uri_cb                      (GtkAction      *action,
 233                                                  TextView       *textview);
 234 static void copy_mail_to_uri_cb                 (GtkAction      *action,
 235                                                  TextView       *textview);
 236 static void save_file_cb                        (GtkAction      *action,
 237                                                  TextView       *textview);
 238 static void open_image_cb                       (GtkAction      *action,
 239                                                  TextView       *textview);
 240 static void textview_show_tags(TextView *textview);
 241
 242 static GtkActionEntry textview_link_popup_entries[] =
 243 {
 244         {"TextviewPopupLink",                   NULL, "TextviewPopupLink", NULL, NULL, NULL },
 245         {"TextviewPopupLink/Open",              NULL, N_("_Open in web browser"), NULL, NULL, G_CALLBACK(open_uri_cb) },
 246         {"TextviewPopupLink/Copy",              NULL, N_("Copy this _link"), NULL, NULL, G_CALLBACK(copy_uri_cb) },
 247 };
 248
 249 static GtkActionEntry textview_mail_popup_entries[] =
 250 {
 251         {"TextviewPopupMail",                   NULL, "TextviewPopupMail", NULL, NULL, NULL },
 252         {"TextviewPopupMail/Compose",           NULL, N_("Compose _new message"), NULL, NULL, G_CALLBACK(mail_to_uri_cb) },
 253         {"TextviewPopupMail/ReplyTo",           NULL, N_("_Reply to this address"), NULL, NULL, G_CALLBACK(reply_to_uri_cb) },
 254         {"TextviewPopupMail/AddAB",             NULL, N_("Add to _Address book"), NULL, NULL, G_CALLBACK(add_uri_to_addrbook_cb) },
 255         {"TextviewPopupMail/Copy",              NULL, N_("Copy this add_ress"), NULL, NULL, G_CALLBACK(copy_mail_to_uri_cb) },
 256 };
 257
 258 static GtkActionEntry textview_file_popup_entries[] =
 259 {
 260         {"TextviewPopupFile",                   NULL, "TextviewPopupFile", NULL, NULL, NULL },
 261         {"TextviewPopupFile/Open",              NULL, N_("_Open image"), NULL, NULL, G_CALLBACK(open_image_cb) },
 262         {"TextviewPopupFile/Save",              NULL, N_("_Save image..."), NULL, NULL, G_CALLBACK(save_file_cb) },
 263 };
 264
 265 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 266 {
 267 #ifndef WIDTH
 268 #  define WIDTH 48
 269 #  define HEIGHT 48
 270 #endif
 271         if (textview->image) {
 272                 GtkAllocation allocation;
 273                 gint x, y, x1;
 274                 gtk_widget_get_allocation(textview->text, &allocation);
 275                 x1 = allocation.width - WIDTH - 5;
 276                 gtk_text_view_buffer_to_window_coords(
 277                         GTK_TEXT_VIEW(textview->text),
 278                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 279                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 280                         textview->image, x1, y);
 281         }
 282 }
 283
 284 static void textview_size_allocate_cb   (GtkWidget      *widget,
 285                                          GtkAllocation  *allocation,
 286                                          gpointer        data)
 287 {
 288         scrolled_cb(NULL, (TextView *)data);
 289 }
 290
 291 TextView *textview_create(void)
 292 {
 293         TextView *textview;
 294         GtkWidget *vbox;
 295         GtkWidget *scrolledwin;
 296         GtkWidget *text;
 297         GtkTextBuffer *buffer;
 298         GtkClipboard *clipboard;
 299         GtkAdjustment *adj;
 300
 301         debug_print("Creating text view...\n");
 302         textview = g_new0(TextView, 1);
 303
 304         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 305         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 306                                        GTK_POLICY_AUTOMATIC,
 307                                        GTK_POLICY_AUTOMATIC);
 308         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 309                                             GTK_SHADOW_IN);
 310         gtk_widget_set_size_request
 311                 (scrolledwin, prefs_common.mainview_width, -1);
 312
 313         /* create GtkSText widgets for single-byte and multi-byte character */
 314         text = gtk_text_view_new();
 315         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 316         gtk_widget_show(text);
 317         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 318         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 319         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 320         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 321         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 322
 323         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 324         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 325         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 326
 327         gtk_widget_ensure_style(text);
 328
 329         g_object_ref(scrolledwin);
 330
 331         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 332
 333         g_signal_connect(G_OBJECT(text), "key-press-event",
 334                          G_CALLBACK(textview_key_pressed), textview);
 335         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 336                          G_CALLBACK(textview_motion_notify), textview);
 337         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 338                          G_CALLBACK(textview_leave_notify), textview);
 339         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 340                          G_CALLBACK(textview_visibility_notify), textview);
 341         adj = gtk_scrolled_window_get_vadjustment(
 342                 GTK_SCROLLED_WINDOW(scrolledwin));
 343         g_signal_connect(G_OBJECT(adj), "value-changed",
 344                          G_CALLBACK(scrolled_cb), textview);
 345         g_signal_connect(G_OBJECT(text), "size_allocate",
 346                          G_CALLBACK(textview_size_allocate_cb),
 347                          textview);
 348
 349
 350         gtk_widget_show(scrolledwin);
 351
 352         vbox = gtk_vbox_new(FALSE, 0);
 353         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 354
 355         gtk_widget_show(vbox);
 356
 357
 358         textview->ui_manager = gtk_ui_manager_new();
 359         textview->link_action_group = cm_menu_create_action_group_full(textview->ui_manager,
 360                         "TextviewPopupLink",
 361                         textview_link_popup_entries,
 362                         G_N_ELEMENTS(textview_link_popup_entries), (gpointer)textview);
 363         textview->mail_action_group = cm_menu_create_action_group_full(textview->ui_manager,
 364                         "TextviewPopupMail",
 365                         textview_mail_popup_entries,
 366                         G_N_ELEMENTS(textview_mail_popup_entries), (gpointer)textview);
 367         textview->file_action_group = cm_menu_create_action_group_full(textview->ui_manager,
 368                         "TextviewPopupFile",
 369                         textview_file_popup_entries,
 370                         G_N_ELEMENTS(textview_file_popup_entries), (gpointer)textview);
 371
 372         MENUITEM_ADDUI_MANAGER(textview->ui_manager, "/", "Menus", "Menus", GTK_UI_MANAGER_MENUBAR)
 373         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 374                         "/Menus", "TextviewPopupLink", "TextviewPopupLink", GTK_UI_MANAGER_MENU)
 375         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 376                         "/Menus", "TextviewPopupMail", "TextviewPopupMail", GTK_UI_MANAGER_MENU)
 377         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 378                         "/Menus", "TextviewPopupFile", "TextviewPopupFile", GTK_UI_MANAGER_MENU)
 379
 380         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 381                         "/Menus/TextviewPopupLink", "Open", "TextviewPopupLink/Open", GTK_UI_MANAGER_MENUITEM)
 382         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 383                         "/Menus/TextviewPopupLink", "Copy", "TextviewPopupLink/Copy", GTK_UI_MANAGER_MENUITEM)
 384         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 385                         "/Menus/TextviewPopupMail", "Compose", "TextviewPopupMail/Compose", GTK_UI_MANAGER_MENUITEM)
 386         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 387                         "/Menus/TextviewPopupMail", "ReplyTo", "TextviewPopupMail/ReplyTo", GTK_UI_MANAGER_MENUITEM)
 388         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 389                         "/Menus/TextviewPopupMail", "AddAB", "TextviewPopupMail/AddAB", GTK_UI_MANAGER_MENUITEM)
 390         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 391                         "/Menus/TextviewPopupMail", "Copy", "TextviewPopupMail/Copy", GTK_UI_MANAGER_MENUITEM)
 392         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 393                         "/Menus/TextviewPopupFile", "Open", "TextviewPopupFile/Open", GTK_UI_MANAGER_MENUITEM)
 394         MENUITEM_ADDUI_MANAGER(textview->ui_manager,
 395                         "/Menus/TextviewPopupFile", "Save", "TextviewPopupFile/Save", GTK_UI_MANAGER_MENUITEM)
 396
 397         textview->link_popup_menu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(
 398                                 gtk_ui_manager_get_widget(textview->ui_manager, "/Menus/TextviewPopupLink")) );
 399         textview->mail_popup_menu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(
 400                                 gtk_ui_manager_get_widget(textview->ui_manager, "/Menus/TextviewPopupMail")) );
 401         textview->file_popup_menu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(
 402                                 gtk_ui_manager_get_widget(textview->ui_manager, "/Menus/TextviewPopupFile")) );
 403
 404         textview->vbox               = vbox;
 405         textview->scrolledwin        = scrolledwin;
 406         textview->text               = text;
 407         textview->uri_list           = NULL;
 408         textview->body_pos           = 0;
 409         textview->last_buttonpress   = GDK_NOTHING;
 410         textview->image              = NULL;
 411         return textview;
 412 }
 413
 414 static void textview_create_tags(GtkTextView *text, TextView *textview)
 415 {
 416         GtkTextBuffer *buffer;
 417         GtkTextTag *tag, *qtag;
 418         static PangoFontDescription *font_desc, *bold_font_desc;
 419
 420         if (!font_desc)
 421                 font_desc = pango_font_description_from_string
 422                         (NORMAL_FONT);
 423
 424         if (!bold_font_desc) {
 425                 if (prefs_common.derive_from_normal_font || !BOLD_FONT) {
 426                         bold_font_desc = pango_font_description_from_string
 427                                 (NORMAL_FONT);
 428                         pango_font_description_set_weight
 429                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
 430                 } else {
 431                         bold_font_desc = pango_font_description_from_string
 432                                 (BOLD_FONT);
 433                 }
 434         }
 435
 436         buffer = gtk_text_view_get_buffer(text);
 437
 438         gtk_text_buffer_create_tag(buffer, "header",
 439                                    "pixels-above-lines", 0,
 440                                    "pixels-above-lines-set", TRUE,
 441                                    "pixels-below-lines", 0,
 442                                    "pixels-below-lines-set", TRUE,
 443                                    "font-desc", font_desc,
 444                                    "left-margin", 3,
 445                                    "left-margin-set", TRUE,
 446                                    NULL);
 447         gtk_text_buffer_create_tag(buffer, "header_title",
 448                                    "font-desc", bold_font_desc,
 449                                    NULL);
 450         tag = gtk_text_buffer_create_tag(buffer, "hlink",
 451                                    "pixels-above-lines", 0,
 452                                    "pixels-above-lines-set", TRUE,
 453                                    "pixels-below-lines", 0,
 454                                    "pixels-below-lines-set", TRUE,
 455                                    "font-desc", font_desc,
 456                                    "left-margin", 3,
 457                                    "left-margin-set", TRUE,
 458                                    "foreground-gdk", &uri_color,
 459                                    NULL);
 460         g_signal_connect(G_OBJECT(tag), "event",
 461                          G_CALLBACK(textview_uri_button_pressed), textview);
 462         if (prefs_common.enable_bgcolor) {
 463                 gtk_text_buffer_create_tag(buffer, "quote0",
 464                                 "foreground-gdk", &quote_colors[0],
 465                                 "paragraph-background-gdk", &quote_bgcolors[0],
 466                                 NULL);
 467                 gtk_text_buffer_create_tag(buffer, "quote1",
 468                                 "foreground-gdk", &quote_colors[1],
 469                                 "paragraph-background-gdk", &quote_bgcolors[1],
 470                                 NULL);
 471                 gtk_text_buffer_create_tag(buffer, "quote2",
 472                                 "foreground-gdk", &quote_colors[2],
 473                                 "paragraph-background-gdk", &quote_bgcolors[2],
 474                                 NULL);
 475         } else {
 476                 gtk_text_buffer_create_tag(buffer, "quote0",
 477                                 "foreground-gdk", &quote_colors[0],
 478                                 NULL);
 479                 gtk_text_buffer_create_tag(buffer, "quote1",
 480                                 "foreground-gdk", &quote_colors[1],
 481                                 NULL);
 482                 gtk_text_buffer_create_tag(buffer, "quote2",
 483                                 "foreground-gdk", &quote_colors[2],
 484                                 NULL);
 485         }
 486         gtk_text_buffer_create_tag(buffer, "tags",
 487                         "foreground-gdk", &tags_color,
 488                         "paragraph-background-gdk", &tags_bgcolor,
 489                         NULL);
 490         gtk_text_buffer_create_tag(buffer, "emphasis",
 491                         "foreground-gdk", &emphasis_color,
 492                         NULL);
 493         gtk_text_buffer_create_tag(buffer, "signature",
 494                         "foreground-gdk", &signature_color,
 495                         NULL);
 496         tag = gtk_text_buffer_create_tag(buffer, "link",
 497                         "foreground-gdk", &uri_color,
 498                         NULL);
 499         qtag = gtk_text_buffer_create_tag(buffer, "qlink",
 500                         NULL);
 501         gtk_text_buffer_create_tag(buffer, "link-hover",
 502                         "underline", PANGO_UNDERLINE_SINGLE,
 503                         NULL);
 504         gtk_text_buffer_create_tag(buffer, "diff-add",
 505                         "foreground-gdk", &diff_added_color,
 506                         NULL);
 507         gtk_text_buffer_create_tag(buffer, "diff-del",
 508                         "foreground-gdk", &diff_deleted_color,
 509                         NULL);
 510         gtk_text_buffer_create_tag(buffer, "diff-add-file",
 511                         "foreground-gdk", &diff_added_color,
 512                         "weight", PANGO_WEIGHT_BOLD,
 513                         NULL);
 514         gtk_text_buffer_create_tag(buffer, "diff-del-file",
 515                         "foreground-gdk", &diff_deleted_color,
 516                         "weight", PANGO_WEIGHT_BOLD,
 517                         NULL);
 518         gtk_text_buffer_create_tag(buffer, "diff-hunk",
 519                         "foreground-gdk", &diff_hunk_color,
 520                         "weight", PANGO_WEIGHT_BOLD,
 521                         NULL);
 522         g_signal_connect(G_OBJECT(qtag), "event",
 523                          G_CALLBACK(textview_uri_button_pressed), textview);
 524         g_signal_connect(G_OBJECT(tag), "event",
 525                          G_CALLBACK(textview_uri_button_pressed), textview);
 526 /*      if (font_desc)
 527                 pango_font_description_free(font_desc);
 528         if (bold_font_desc)
 529                 pango_font_description_free(bold_font_desc);*/
 530  }
 531
 532 void textview_init(TextView *textview)
 533 {
 534         if (!hand_cursor)
 535                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 536         if (!text_cursor)
 537                 text_cursor = gdk_cursor_new(GDK_XTERM);
 538         if (!watch_cursor)
 539                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 540
 541         textview_reflect_prefs(textview);
 542         textview_set_font(textview, NULL);
 543         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 544 }
 545
 546  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 547         tag = gtk_text_tag_table_lookup(tags, tagname); \
 548         if (tag) \
 549                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 550  }
 551
 552 static void textview_update_message_colors(TextView *textview)
 553 {
 554         GdkColor black = {0, 0, 0, 0};
 555         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 556
 557         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 558         GtkTextTag *tag = NULL;
 559
 560         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 561         quote_colors[0] = quote_colors[1] = quote_colors[2] = black;
 562         uri_color = emphasis_color = signature_color = diff_added_color =
 563                 diff_deleted_color = diff_hunk_color = black;
 564         tags_bgcolor = tags_color = black;
 565
 566         if (prefs_common.enable_color) {
 567                 /* grab the quote colors, converting from an int to a GdkColor */
 568                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_QUOTE_LEVEL1],
 569                                                &quote_colors[0]);
 570                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_QUOTE_LEVEL2],
 571                                                &quote_colors[1]);
 572                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_QUOTE_LEVEL3],
 573                                                &quote_colors[2]);
 574                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_URI],
 575                                                &uri_color);
 576                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_SIGNATURE],
 577                                                &signature_color);
 578                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_EMPHASIS],
 579                                                &emphasis_color);
 580                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_DIFF_ADDED],
 581                                                &diff_added_color);
 582                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_DIFF_DELETED],
 583                                                &diff_deleted_color);
 584                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_DIFF_HUNK],
 585                                                &diff_hunk_color);
 586         }
 587         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 588                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_QUOTE_LEVEL1_BG],
 589                                                    &quote_bgcolors[0]);
 590                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_QUOTE_LEVEL2_BG],
 591                                                    &quote_bgcolors[1]);
 592                 gtkut_convert_int_to_gdk_color(prefs_common.color[COL_QUOTE_LEVEL3_BG],
 593                                                    &quote_bgcolors[2]);
 594                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 595                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 596                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 597         } else {
 598                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 599                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 600                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 601         }
 602
 603         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 604         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 605         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 606         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 607         CHANGE_TAG_COLOR("diff-add", &diff_added_color, NULL);
 608         CHANGE_TAG_COLOR("diff-del", &diff_deleted_color, NULL);
 609         CHANGE_TAG_COLOR("diff-add-file", &diff_added_color, NULL);
 610         CHANGE_TAG_COLOR("diff-del-file", &diff_deleted_color, NULL);
 611         CHANGE_TAG_COLOR("diff-hunk", &diff_hunk_color, NULL);
 612
 613         gtkut_convert_int_to_gdk_color(prefs_common.color[COL_TAGS_BG],
 614                                            &tags_bgcolor);
 615         gtkut_convert_int_to_gdk_color(prefs_common.color[COL_TAGS],
 616                                            &tags_color);
 617 }
 618 #undef CHANGE_TAG_COLOR
 619
 620 void textview_reflect_prefs(TextView *textview)
 621 {
 622         textview_set_font(textview, NULL);
 623         textview_update_message_colors(textview);
 624         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 625                                          prefs_common.textview_cursor_visible);
 626 }
 627
 628 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 629 {
 630         START_TIMING("");
 631         cm_return_if_fail(mimeinfo != NULL);
 632         cm_return_if_fail(fp != NULL);
 633
 634         textview->loading = TRUE;
 635         textview->stop_loading = FALSE;
 636
 637         textview_clear(textview);
 638
 639         if (mimeinfo->type == MIMETYPE_MULTIPART ||
 640             (mimeinfo->type == MIMETYPE_MESSAGE && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 641                 textview_add_parts(textview, mimeinfo);
 642         } else {
 643                 if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 644                         perror("fseek");
 645
 646                 textview_write_body(textview, mimeinfo);
 647         }
 648
 649         textview->loading = FALSE;
 650         textview->stop_loading = FALSE;
 651         textview_set_position(textview, 0);
 652
 653         END_TIMING();
 654 }
 655
 656 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 657 {
 658         GtkAllocation allocation;
 659         GtkTextView *text;
 660         GtkTextBuffer *buffer;
 661         GtkTextIter iter, start_iter;
 662         gchar buf[BUFFSIZE];
 663         GPtrArray *headers = NULL;
 664         const gchar *name;
 665         gchar *content_type;
 666         gint charcount;
 667
 668         START_TIMING("");
 669
 670         cm_return_if_fail(mimeinfo != NULL);
 671         text = GTK_TEXT_VIEW(textview->text);
 672         buffer = gtk_text_view_get_buffer(text);
 673         charcount = gtk_text_buffer_get_char_count(buffer);
 674         gtk_text_buffer_get_end_iter(buffer, &iter);
 675
 676         if (textview->stop_loading) {
 677                 return;
 678         }
 679         if (mimeinfo->type == MIMETYPE_MULTIPART) {
 680                 END_TIMING();
 681                 return;
 682         }
 683
 684         textview->prev_quote_level = -1;
 685
 686         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 687                 FILE *fp;
 688                 if (mimeinfo->content == MIMECONTENT_MEM)
 689                         fp = str_open_as_stream(mimeinfo->data.mem);
 690                 else
 691                         fp = g_fopen(mimeinfo->data.filename, "rb");
 692                 if (!fp) {
 693                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
 694                         END_TIMING();
 695                         return;
 696                 }
 697                 if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0) {
 698                         FILE_OP_ERROR(mimeinfo->data.filename, "fseek");
 699                         fclose(fp);
 700                         END_TIMING();
 701                         return;
 702                 }
 703                 headers = textview_scan_header(textview, fp);
 704                 if (headers) {
 705                         if (charcount > 0)
 706                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 707
 708                         if (procmime_mimeinfo_parent(mimeinfo) == NULL)
 709                                 textview_show_tags(textview);
 710                         textview_show_header(textview, headers);
 711                         procheader_header_array_destroy(headers);
 712                 }
 713                 fclose(fp);
 714                 END_TIMING();
 715                 return;
 716         }
 717
 718         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 719         content_type = procmime_get_content_type_str(mimeinfo->type,
 720                                                      mimeinfo->subtype);
 721         if (name == NULL)
 722                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 723         if (name != NULL)
 724                 g_snprintf(buf, sizeof(buf), _("[%s  %s (%d bytes)]"),
 725                            name, content_type, mimeinfo->length);
 726         else
 727                 g_snprintf(buf, sizeof(buf), _("[%s (%d bytes)]"),
 728                            content_type, mimeinfo->length);
 729
 730         g_free(content_type);
 731
 732         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 733         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 734             mimeinfo->type != MIMETYPE_TEXT)) {
 735                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 736                 TEXTVIEW_INSERT_LINK(buf, "sc://select_attachment", mimeinfo);
 737                 gtk_text_buffer_insert(buffer, &iter, " \n", -1);
 738                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 739                     prefs_common.inline_img ) {
 740                         GdkPixbuf *pixbuf;
 741                         GError *error = NULL;
 742                         gchar *filename;
 743                         ClickableText *uri;
 744                         gchar *uri_str;
 745                         gint err;
 746                         START_TIMING("inserting image");
 747
 748                         filename = procmime_get_tmp_file_name(mimeinfo);
 749
 750                         if ((err = procmime_get_part(filename, mimeinfo)) < 0) {
 751                                 g_warning("Can't get the image file.(%s)", g_strerror(-err));
 752                                 g_free(filename);
 753                                 END_TIMING();
 754                                 return;
 755                         }
 756
 757                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 758                         if (textview->stop_loading) {
 759                                 return;
 760                         }
 761                         if (error != NULL) {
 762                                 g_warning("%s", error->message);
 763                                 g_error_free(error);
 764                         }
 765                         if (!pixbuf) {
 766                                 g_warning("Can't load the image.");
 767                                 g_free(filename);
 768                                 END_TIMING();
 769                                 return;
 770                         }
 771
 772                         gtk_widget_get_allocation(textview->scrolledwin, &allocation);
 773                         pixbuf = claws_load_pixbuf_fitting(pixbuf,
 774                                         allocation.width,
 775                                         allocation.height);
 776
 777                         if (textview->stop_loading) {
 778                                 return;
 779                         }
 780
 781                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 782                         if (uri_str) {
 783                                 uri = g_new0(ClickableText, 1);
 784                                 uri->uri = uri_str;
 785                                 uri->start = gtk_text_iter_get_offset(&iter);
 786
 787                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 788                                 if (textview->stop_loading) {
 789                                         g_free(uri);
 790                                         return;
 791                                 }
 792                                 uri->end = uri->start + 1;
 793                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 794                                 textview->uri_list =
 795                                         g_slist_prepend(textview->uri_list, uri);
 796
 797                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 798                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 799                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 800                                                 &start_iter, &iter);
 801                         } else {
 802                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 803                                 if (textview->stop_loading) {
 804                                         return;
 805                                 }
 806                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 807                         }
 808
 809                         g_object_unref(pixbuf);
 810                         g_free(filename);
 811                         END_TIMING();
 812                         GTK_EVENTS_FLUSH();
 813                 }
 814         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 815                 if (prefs_common.display_header && (charcount > 0))
 816                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 817
 818                 if (!gtk_text_buffer_get_mark(buffer, "body_start")) {
 819                         gtk_text_buffer_get_end_iter(buffer, &iter);
 820                         gtk_text_buffer_create_mark(buffer, "body_start", &iter, TRUE);
 821                 }
 822
 823                 textview_write_body(textview, mimeinfo);
 824
 825                 if (!gtk_text_buffer_get_mark(buffer, "body_end")) {
 826                         gtk_text_buffer_get_end_iter(buffer, &iter);
 827                         gtk_text_buffer_create_mark(buffer, "body_end", &iter, TRUE);
 828                 }
 829         }
 830         END_TIMING();
 831 }
 832
 833 static void recursive_add_parts(TextView *textview, GNode *node)
 834 {
 835         GNode * iter;
 836         MimeInfo *mimeinfo;
 837         START_TIMING("");
 838
 839         mimeinfo = (MimeInfo *) node->data;
 840
 841         textview_add_part(textview, mimeinfo);
 842 #ifdef GENERIC_UMPC
 843         textview_set_position(textview, 0);
 844 #endif
 845         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 846             (mimeinfo->type != MIMETYPE_MESSAGE)) {
 847                 END_TIMING();
 848                 return;
 849         }
 850         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 851                 GNode * preferred_body;
 852                 int preferred_score;
 853
 854                 /*
 855                   text/plain : score 3
 856                   text/ *    : score 2
 857                   other      : score 1
 858                 */
 859                 preferred_body = NULL;
 860                 preferred_score = 0;
 861
 862                 for (iter = g_node_first_child(node) ; iter != NULL ;
 863                      iter = g_node_next_sibling(iter)) {
 864                         int score;
 865                         MimeInfo * submime;
 866
 867                         score = 1;
 868                         submime = (MimeInfo *) iter->data;
 869                         if (submime->type == MIMETYPE_TEXT)
 870                                 score = 2;
 871
 872                         if (submime->subtype != NULL) {
 873                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 874                                         score = 3;
 875                         }
 876
 877                         if (score > preferred_score) {
 878                                 preferred_score = score;
 879                                 preferred_body = iter;
 880                         }
 881                 }
 882
 883                 if (preferred_body != NULL) {
 884                         recursive_add_parts(textview, preferred_body);
 885                 }
 886         }
 887         else {
 888                 for (iter = g_node_first_child(node) ; iter != NULL ;
 889                      iter = g_node_next_sibling(iter)) {
 890                         recursive_add_parts(textview, iter);
 891                 }
 892         }
 893         END_TIMING();
 894 }
 895
 896 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 897 {
 898         cm_return_if_fail(mimeinfo != NULL);
 899         cm_return_if_fail(mimeinfo->node != NULL);
 900
 901         recursive_add_parts(textview, mimeinfo->node);
 902 }
 903
 904 void textview_show_error(TextView *textview)
 905 {
 906         GtkTextView *text;
 907         GtkTextBuffer *buffer;
 908         GtkTextIter iter;
 909
 910         textview_set_font(textview, NULL);
 911         textview_clear(textview);
 912
 913         text = GTK_TEXT_VIEW(textview->text);
 914         buffer = gtk_text_view_get_buffer(text);
 915         gtk_text_buffer_get_start_iter(buffer, &iter);
 916
 917         TEXTVIEW_INSERT(_("\n"
 918                       "  This message can't be displayed.\n"
 919                       "  This is probably due to a network error.\n"
 920                       "\n"
 921                       "  Use "));
 922         TEXTVIEW_INSERT_LINK(_("'Network Log'"), "sc://view_log", NULL);
 923         TEXTVIEW_INSERT(_(" in the Tools menu for more information."));
 924         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 925 }
 926
 927 void textview_show_info(TextView *textview, const gchar *info_str)
 928 {
 929         GtkTextView *text;
 930         GtkTextBuffer *buffer;
 931         GtkTextIter iter;
 932
 933         textview_set_font(textview, NULL);
 934         textview_clear(textview);
 935
 936         text = GTK_TEXT_VIEW(textview->text);
 937         buffer = gtk_text_view_get_buffer(text);
 938         gtk_text_buffer_get_start_iter(buffer, &iter);
 939
 940         TEXTVIEW_INSERT(info_str);
 941         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 942         textview_cursor_normal(textview);
 943 }
 944
 945 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 946 {
 947         GtkTextView *text;
 948         GtkTextBuffer *buffer;
 949         GtkTextIter iter;
 950         const gchar *name;
 951         gchar *content_type;
 952         GtkUIManager *ui_manager;
 953 #ifndef GENERIC_UMPC
 954         gchar *shortcut;
 955 #endif
 956
 957         if (!partinfo) return;
 958
 959         if (textview->messageview->window != NULL)
 960                 ui_manager = textview->messageview->ui_manager;
 961         else
 962                 ui_manager = textview->messageview->mainwin->ui_manager;
 963
 964         textview_set_font(textview, NULL);
 965         textview_clear(textview);
 966
 967         text = GTK_TEXT_VIEW(textview->text);
 968         buffer = gtk_text_view_get_buffer(text);
 969         gtk_text_buffer_get_start_iter(buffer, &iter);
 970
 971         TEXTVIEW_INSERT("\n");
 972
 973         name = procmime_mimeinfo_get_parameter(partinfo, "filename");
 974         if (name == NULL)
 975                 name = procmime_mimeinfo_get_parameter(partinfo, "name");
 976         if (name != NULL) {
 977                 content_type = procmime_get_content_type_str(partinfo->type,
 978                                                      partinfo->subtype);
 979                 TEXTVIEW_INSERT("  ");
 980                 TEXTVIEW_INSERT_BOLD(name);
 981                 TEXTVIEW_INSERT(" (");
 982                 TEXTVIEW_INSERT(content_type);
 983                 TEXTVIEW_INSERT(", ");
 984                 TEXTVIEW_INSERT(to_human_readable((goffset)partinfo->length));
 985                 TEXTVIEW_INSERT("):\n\n");
 986
 987                 g_free(content_type);
 988         }
 989         TEXTVIEW_INSERT(_("  The following can be performed on this part\n"));
 990 #ifndef GENERIC_UMPC
 991         TEXTVIEW_INSERT(_("  by right-clicking the icon or list item:"));
 992 #endif
 993         TEXTVIEW_INSERT("\n");
 994
 995         TEXTVIEW_INSERT(_("     - To save, select "));
 996         TEXTVIEW_INSERT_LINK(_("'Save as...'"), "sc://save_as", NULL);
 997 #ifndef GENERIC_UMPC
 998         TEXTVIEW_INSERT(_(" (Shortcut key: '"));
 999         shortcut = cm_menu_item_get_shortcut(ui_manager, "Menu/File/SavePartAs");
1000         TEXTVIEW_INSERT(shortcut);
1001         g_free(shortcut);
1002         TEXTVIEW_INSERT("')");
1003 #endif
1004         TEXTVIEW_INSERT("\n");
1005
1006         TEXTVIEW_INSERT(_("     - To display as text, select "));
1007         TEXTVIEW_INSERT_LINK(_("'Display as text'"), "sc://display_as_text", NULL);
1008
1009 #ifndef GENERIC_UMPC
1010         TEXTVIEW_INSERT(_(" (Shortcut key: '"));
1011         shortcut = cm_menu_item_get_shortcut(ui_manager, "Menu/View/Part/AsText");
1012         TEXTVIEW_INSERT(shortcut);
1013         g_free(shortcut);
1014         TEXTVIEW_INSERT("')");
1015 #endif
1016         TEXTVIEW_INSERT("\n");
1017
1018         TEXTVIEW_INSERT(_("     - To open with an external program, select "));
1019         TEXTVIEW_INSERT_LINK(_("'Open'"), "sc://open", NULL);
1020
1021 #ifndef GENERIC_UMPC
1022         TEXTVIEW_INSERT(_(" (Shortcut key: '"));
1023         shortcut = cm_menu_item_get_shortcut(ui_manager, "Menu/View/Part/Open");
1024         TEXTVIEW_INSERT(shortcut);
1025         g_free(shortcut);
1026         TEXTVIEW_INSERT("')\n");
1027         TEXTVIEW_INSERT(_("       (alternately double-click, or click the middle "));
1028         TEXTVIEW_INSERT(_("mouse button)\n"));
1029 #ifndef G_OS_WIN32
1030         TEXTVIEW_INSERT(_("     - Or use "));
1031         TEXTVIEW_INSERT_LINK(_("'Open with...'"), "sc://open_with", NULL);
1032         TEXTVIEW_INSERT(_(" (Shortcut key: '"));
1033         shortcut = cm_menu_item_get_shortcut(ui_manager, "Menu/View/Part/OpenWith");
1034         TEXTVIEW_INSERT(shortcut);
1035         g_free(shortcut);
1036         TEXTVIEW_INSERT("')");
1037 #endif
1038 #endif
1039         TEXTVIEW_INSERT("\n");
1040
1041         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
1042 }
1043
1044 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
1045 {
1046         FILE *tmpfp;
1047         gchar buf[BUFFSIZE];
1048         CodeConverter *conv;
1049         const gchar *charset;
1050 #ifndef G_OS_WIN32
1051         const gchar *p, *cmd;
1052 #endif
1053         GSList *cur;
1054         gboolean continue_write = TRUE;
1055         size_t wrote = 0, i = 0;
1056
1057         if (textview->messageview->forced_charset)
1058                 charset = textview->messageview->forced_charset;
1059         else {
1060                 /* use supersets transparently when possible */
1061                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
1062                 if (charset && !strcasecmp(charset, CS_ISO_8859_1))
1063                         charset = CS_WINDOWS_1252;
1064                 else if (charset && !strcasecmp(charset, CS_X_GBK))
1065                         charset = CS_GB18030;
1066                 else if (charset && !strcasecmp(charset, CS_GBK))
1067                         charset = CS_GB18030;
1068                 else if (charset && !strcasecmp(charset, CS_GB2312))
1069                         charset = CS_GB18030;
1070         }
1071
1072         textview_set_font(textview, charset);
1073
1074         conv = conv_code_converter_new(charset);
1075
1076         procmime_force_encoding(textview->messageview->forced_encoding);
1077
1078         textview->is_in_signature = FALSE;
1079         textview->is_diff = FALSE;
1080         textview->is_attachment = FALSE;;
1081
1082         procmime_decode_content(mimeinfo);
1083
1084         account_signatures_matchlist_create();
1085
1086         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
1087             prefs_common.render_html) {
1088                 gchar *filename;
1089
1090                 filename = procmime_get_tmp_file_name(mimeinfo);
1091                 if (procmime_get_part(filename, mimeinfo) == 0) {
1092                         tmpfp = g_fopen(filename, "rb");
1093                         if (tmpfp) {
1094                                 textview_show_html(textview, tmpfp, conv);
1095                                 fclose(tmpfp);
1096                         }
1097                         claws_unlink(filename);
1098                 }
1099                 g_free(filename);
1100         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
1101                 gchar *filename;
1102
1103                 filename = procmime_get_tmp_file_name(mimeinfo);
1104                 if (procmime_get_part(filename, mimeinfo) == 0) {
1105                         tmpfp = g_fopen(filename, "rb");
1106                         if (tmpfp) {
1107                                 textview_show_ertf(textview, tmpfp, conv);
1108                                 fclose(tmpfp);
1109                         }
1110                         claws_unlink(filename);
1111                 }
1112                 g_free(filename);
1113 #ifndef G_OS_WIN32
1114         } else if ( g_ascii_strcasecmp(mimeinfo->subtype, "plain") &&
1115                    (cmd = prefs_common.mime_textviewer) && *cmd &&
1116                    (p = strchr(cmd, '%')) && *(p + 1) == 's') {
1117                 int pid, pfd[2];
1118                 const gchar *fname;
1119
1120                 fname  = procmime_get_tmp_file_name(mimeinfo);
1121                 if (procmime_get_part(fname, mimeinfo)) goto textview_default;
1122
1123                 g_snprintf(buf, sizeof(buf), cmd, fname);
1124                 debug_print("Viewing text content of type: %s (length: %d) "
1125                         "using %s\n", mimeinfo->subtype, mimeinfo->length, buf);
1126
1127                 if (pipe(pfd) < 0) {
1128                         g_snprintf(buf, sizeof(buf),
1129                                 "pipe failed for textview\n\n%s\n", g_strerror(errno));
1130                         textview_write_line(textview, buf, conv, TRUE);
1131                         goto textview_default;
1132                 }
1133                 pid = fork();
1134                 if (pid < 0) {
1135                         g_snprintf(buf, sizeof(buf),
1136                                 "fork failed for textview\n\n%s\n", g_strerror(errno));
1137                         textview_write_line(textview, buf, conv, TRUE);
1138                         close(pfd[0]);
1139                         close(pfd[1]);
1140                         goto textview_default;
1141                 }
1142                 if (pid == 0) { /* child */
1143                         int rc;
1144                         gchar **argv;
1145                         argv = strsplit_with_quote(buf, " ", 0);
1146                         close(1);
1147                         close(pfd[0]);
1148                         rc = dup(pfd[1]);
1149                         rc = execvp(argv[0], argv);
1150                         perror("execvp");
1151                         close(pfd[1]);
1152                         g_print(_("The command to view attachment "
1153                                 "as text failed:\n"
1154                                 "    %s\n"
1155                                 "Exit code %d\n"), buf, rc);
1156                         exit(255);
1157                 }
1158                 close(pfd[1]);
1159                 tmpfp = fdopen(pfd[0], "rb");
1160                 while (fgets(buf, sizeof(buf), tmpfp)) {
1161                         textview_write_line(textview, buf, conv, TRUE);
1162
1163                         if (textview->stop_loading) {
1164                                 fclose(tmpfp);
1165                                 waitpid(pid, pfd, 0);
1166                                 g_unlink(fname);
1167                                 account_signatures_matchlist_delete();
1168                                 return;
1169                         }
1170                 }
1171
1172                 fclose(tmpfp);
1173                 waitpid(pid, pfd, 0);
1174                 g_unlink(fname);
1175 #endif
1176         } else {
1177 #ifndef G_OS_WIN32
1178 textview_default:
1179 #endif
1180                 if (!g_ascii_strcasecmp(mimeinfo->subtype, "x-patch")
1181                                 || !g_ascii_strcasecmp(mimeinfo->subtype, "x-diff"))
1182                         textview->is_diff = TRUE;
1183
1184                 /* Displayed part is an attachment, but not an attached
1185                  * e-mail. Set a flag, so that elsewhere in the code we
1186                  * know not to try making collapsible quotes in it. */
1187                 if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT &&
1188                                 mimeinfo->type != MIMETYPE_MESSAGE)
1189                         textview->is_attachment = TRUE;
1190
1191                 if (mimeinfo->content == MIMECONTENT_MEM)
1192                         tmpfp = str_open_as_stream(mimeinfo->data.mem);
1193                 else
1194                         tmpfp = g_fopen(mimeinfo->data.filename, "rb");
1195                 if (!tmpfp) {
1196                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1197                         account_signatures_matchlist_delete();
1198                         return;
1199                 }
1200                 if (fseek(tmpfp, mimeinfo->offset, SEEK_SET) < 0) {
1201                         FILE_OP_ERROR(mimeinfo->data.filename, "fseek");
1202                         fclose(tmpfp);
1203                         account_signatures_matchlist_delete();
1204                         return;
1205                 }
1206                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
1207                 while (((i = ftell(tmpfp)) < mimeinfo->offset + mimeinfo->length) &&
1208                        (fgets(buf, sizeof(buf), tmpfp) != NULL)
1209                        && continue_write) {
1210                         textview_write_line(textview, buf, conv, TRUE);
1211                         if (textview->stop_loading) {
1212                                 fclose(tmpfp);
1213                                 account_signatures_matchlist_delete();
1214                                 return;
1215                         }
1216                         wrote += ftell(tmpfp)-i;
1217                         if (mimeinfo->length > 1024*1024
1218                         &&  wrote > 1024*1024
1219                         && !textview->messageview->show_full_text) {
1220                                 continue_write = FALSE;
1221                         }
1222                 }
1223                 fclose(tmpfp);
1224         }
1225
1226         account_signatures_matchlist_delete();
1227
1228         conv_code_converter_destroy(conv);
1229         procmime_force_encoding(0);
1230
1231         textview->uri_list = g_slist_reverse(textview->uri_list);
1232         for (cur = textview->uri_list; cur; cur = cur->next) {
1233                 ClickableText *uri = (ClickableText *)cur->data;
1234                 if (!uri->is_quote)
1235                         continue;
1236                 if (!prefs_common.hide_quotes ||
1237                     uri->quote_level+1 < prefs_common.hide_quotes) {
1238                         textview_toggle_quote(textview, cur, uri, TRUE);
1239                         if (textview->stop_loading) {
1240                                 return;
1241                         }
1242                 }
1243         }
1244
1245         if (continue_write == FALSE) {
1246                 messageview_show_partial_display(
1247                         textview->messageview,
1248                         textview->messageview->msginfo,
1249                         mimeinfo->length);
1250         }
1251         GTK_EVENTS_FLUSH();
1252 }
1253
1254 static void textview_show_html(TextView *textview, FILE *fp,
1255                                CodeConverter *conv)
1256 {
1257         SC_HTMLParser *parser;
1258         gchar *str;
1259         gint lines = 0;
1260
1261         parser = sc_html_parser_new(fp, conv);
1262         cm_return_if_fail(parser != NULL);
1263
1264         account_signatures_matchlist_create();
1265
1266         while ((str = sc_html_parse(parser)) != NULL) {
1267                 if (parser->state == SC_HTML_HREF) {
1268                         /* first time : get and copy the URL */
1269                         if (parser->href == NULL) {
1270                                 /* ALF - the claws html parser returns an empty string,
1271                                  * if still inside an <a>, but already parsed past HREF */
1272                                 str = strtok(str, " ");
1273                                 if (str) {
1274                                         while (str && *str && g_ascii_isspace(*str))
1275                                                 str++;
1276                                         parser->href = g_strdup(str);
1277                                         /* the URL may (or not) be followed by the
1278                                          * referenced text */
1279                                         str = strtok(NULL, "");
1280                                 }
1281                         }
1282                         if (str != NULL)
1283                                 textview_write_link(textview, str, parser->href, NULL);
1284                 } else
1285                         textview_write_line(textview, str, NULL, FALSE);
1286                 lines++;
1287                 if (lines % 500 == 0)
1288                         GTK_EVENTS_FLUSH();
1289                 if (textview->stop_loading) {
1290                         account_signatures_matchlist_delete();
1291                         return;
1292                 }
1293         }
1294         textview_write_line(textview, "\n", NULL, FALSE);
1295
1296         account_signatures_matchlist_delete();
1297
1298         sc_html_parser_destroy(parser);
1299 }
1300
1301 static void textview_show_ertf(TextView *textview, FILE *fp,
1302                                CodeConverter *conv)
1303 {
1304         ERTFParser *parser;
1305         gchar *str;
1306         gint lines = 0;
1307
1308         parser = ertf_parser_new(fp, conv);
1309         cm_return_if_fail(parser != NULL);
1310
1311         account_signatures_matchlist_create();
1312
1313         while ((str = ertf_parse(parser)) != NULL) {
1314                 textview_write_line(textview, str, NULL, FALSE);
1315                 lines++;
1316                 if (lines % 500 == 0)
1317                         GTK_EVENTS_FLUSH();
1318                 if (textview->stop_loading) {
1319                         account_signatures_matchlist_delete();
1320                         return;
1321                 }
1322         }
1323
1324         account_signatures_matchlist_delete();
1325
1326         ertf_parser_destroy(parser);
1327 }
1328
1329 #define ADD_TXT_POS(bp_, ep_, pti_) \
1330         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1331                 last = last->next; \
1332                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1333                 last->next = NULL; \
1334         } else { \
1335                 g_warning("alloc error scanning URIs"); \
1336                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
1337                                                          linebuf, -1, \
1338                                                          fg_tag, NULL); \
1339                 return; \
1340         }
1341
1342 #define ADD_TXT_POS_LATER(bp_, ep_, pti_) \
1343         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1344                 last = last->next; \
1345                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1346                 last->next = NULL; \
1347         } else { \
1348                 g_warning("alloc error scanning URIs"); \
1349         }
1350
1351 /* textview_make_clickable_parts() - colorizes clickable parts */
1352 static void textview_make_clickable_parts(TextView *textview,
1353                                           const gchar *fg_tag,
1354                                           const gchar *uri_tag,
1355                                           const gchar *linebuf,
1356                                           gboolean hdr)
1357 {
1358         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1359         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1360         GtkTextIter iter;
1361         gchar *mybuf = g_strdup(linebuf);
1362
1363         /* parse table - in order of priority */
1364         struct table {
1365                 const gchar *needle; /* token */
1366
1367                 /* token search function */
1368                 gchar    *(*search)     (const gchar *haystack,
1369                                          const gchar *needle);
1370                 /* part parsing function */
1371                 gboolean  (*parse)      (const gchar *start,
1372                                          const gchar *scanpos,
1373                                          const gchar **bp_,
1374                                          const gchar **ep_,
1375                                          gboolean hdr);
1376                 /* part to URI function */
1377                 gchar    *(*build_uri)  (const gchar *bp,
1378                                          const gchar *ep);
1379         };
1380
1381         static struct table parser[] = {
1382                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1383                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1384                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1385                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1386                 {"gopher://",strcasestr, get_uri_part,   make_uri_string},
1387                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1388                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1389                 {"@",        strcasestr, get_email_part, make_email_string}
1390         };
1391         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1392
1393         gint  n;
1394         const gchar *walk, *bp, *ep;
1395
1396         struct txtpos {
1397                 const gchar     *bp, *ep;       /* text position */
1398                 gint             pti;           /* index in parse table */
1399                 struct txtpos   *next;          /* next */
1400         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1401
1402         if (!g_utf8_validate(linebuf, -1, NULL)) {
1403                 g_free(mybuf);
1404                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1405                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1406         }
1407
1408         gtk_text_buffer_get_end_iter(buffer, &iter);
1409
1410         /* parse for clickable parts, and build a list of begin and end positions  */
1411         for (walk = mybuf;;) {
1412                 gint last_index = PARSE_ELEMS;
1413                 gchar *scanpos = NULL;
1414
1415                 /* FIXME: this looks phony. scanning for anything in the parse table */
1416                 for (n = 0; n < PARSE_ELEMS; n++) {
1417                         gchar *tmp;
1418
1419                         tmp = parser[n].search(walk, parser[n].needle);
1420                         if (tmp) {
1421                                 if (scanpos == NULL || tmp < scanpos) {
1422                                         scanpos = tmp;
1423                                         last_index = n;
1424                                 }
1425                         }
1426                 }
1427
1428                 if (scanpos) {
1429                         /* check if URI can be parsed */
1430                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1431                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1432                                         ADD_TXT_POS(bp, ep, last_index);
1433                                         walk = ep;
1434                         } else
1435                                 walk = scanpos +
1436                                         strlen(parser[last_index].needle);
1437                 } else
1438                         break;
1439         }
1440
1441         /* colorize this line */
1442         if (head.next) {
1443                 const gchar *normal_text = mybuf;
1444
1445                 /* insert URIs */
1446                 for (last = head.next; last != NULL;
1447                      normal_text = last->ep, last = last->next) {
1448                         ClickableText *uri;
1449                         uri = g_new0(ClickableText, 1);
1450                         if (last->bp - normal_text > 0)
1451                                 gtk_text_buffer_insert_with_tags_by_name
1452                                         (buffer, &iter,
1453                                          normal_text,
1454                                          last->bp - normal_text,
1455                                          fg_tag, NULL);
1456                         uri->uri = parser[last->pti].build_uri(last->bp,
1457                                                                last->ep);
1458                         uri->start = gtk_text_iter_get_offset(&iter);
1459                         gtk_text_buffer_insert_with_tags_by_name
1460                                 (buffer, &iter, last->bp, last->ep - last->bp,
1461                                  uri_tag, fg_tag, NULL);
1462                         uri->end = gtk_text_iter_get_offset(&iter);
1463                         uri->filename = NULL;
1464                         textview->uri_list =
1465                                 g_slist_prepend(textview->uri_list, uri);
1466                 }
1467
1468                 if (*normal_text)
1469                         gtk_text_buffer_insert_with_tags_by_name
1470                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1471         } else {
1472                 gtk_text_buffer_insert_with_tags_by_name
1473                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1474         }
1475         g_free(mybuf);
1476 }
1477
1478 /* textview_make_clickable_parts() - colorizes clickable parts */
1479 static void textview_make_clickable_parts_later(TextView *textview,
1480                                           gint start, gint end)
1481 {
1482         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1483         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1484         GtkTextIter start_iter, end_iter;
1485         gchar *mybuf;
1486         gint offset = 0;
1487         /* parse table - in order of priority */
1488         struct table {
1489                 const gchar *needle; /* token */
1490
1491                 /* token search function */
1492                 gchar    *(*search)     (const gchar *haystack,
1493                                          const gchar *needle);
1494                 /* part parsing function */
1495                 gboolean  (*parse)      (const gchar *start,
1496                                          const gchar *scanpos,
1497                                          const gchar **bp_,
1498                                          const gchar **ep_,
1499                                          gboolean hdr);
1500                 /* part to URI function */
1501                 gchar    *(*build_uri)  (const gchar *bp,
1502                                          const gchar *ep);
1503         };
1504
1505         static struct table parser[] = {
1506                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1507                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1508                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1509                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1510                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1511                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1512                 {"@",        strcasestr, get_email_part, make_email_string}
1513         };
1514         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1515
1516         gint  n;
1517         const gchar *walk, *bp, *ep;
1518
1519         struct txtpos {
1520                 const gchar     *bp, *ep;       /* text position */
1521                 gint             pti;           /* index in parse table */
1522                 struct txtpos   *next;          /* next */
1523         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1524
1525         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start);
1526         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end);
1527         mybuf = gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
1528         offset = gtk_text_iter_get_offset(&start_iter);
1529
1530         /* parse for clickable parts, and build a list of begin and end positions  */
1531         for (walk = mybuf;;) {
1532                 gint last_index = PARSE_ELEMS;
1533                 gchar *scanpos = NULL;
1534
1535                 /* FIXME: this looks phony. scanning for anything in the parse table */
1536                 for (n = 0; n < PARSE_ELEMS; n++) {
1537                         gchar *tmp;
1538
1539                         tmp = parser[n].search(walk, parser[n].needle);
1540                         if (tmp) {
1541                                 if (scanpos == NULL || tmp < scanpos) {
1542                                         scanpos = tmp;
1543                                         last_index = n;
1544                                 }
1545                         }
1546                 }
1547
1548                 if (scanpos) {
1549                         /* check if URI can be parsed */
1550                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, FALSE)
1551                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1552                                         ADD_TXT_POS_LATER(bp, ep, last_index);
1553                                         walk = ep;
1554                         } else
1555                                 walk = scanpos +
1556                                         strlen(parser[last_index].needle);
1557                 } else
1558                         break;
1559         }
1560
1561         /* colorize this line */
1562         if (head.next) {
1563                 /* insert URIs */
1564                 for (last = head.next; last != NULL; last = last->next) {
1565                         ClickableText *uri;
1566                         gint start_offset, end_offset;
1567                         gchar *tmp_str;
1568                         gchar old_char;
1569                         uri = g_new0(ClickableText, 1);
1570                         uri->uri = parser[last->pti].build_uri(last->bp,
1571                                                                last->ep);
1572
1573                         tmp_str = mybuf;
1574                         old_char = tmp_str[last->ep - mybuf];
1575                         tmp_str[last->ep - mybuf] = '\0';
1576                         end_offset = g_utf8_strlen(tmp_str, -1);
1577                         tmp_str[last->ep - mybuf] = old_char;
1578
1579                         old_char = tmp_str[last->bp - mybuf];
1580                         tmp_str[last->bp - mybuf] = '\0';
1581                         start_offset = g_utf8_strlen(tmp_str, -1);
1582                         tmp_str[last->bp - mybuf] = old_char;
1583
1584                         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start_offset + offset);
1585                         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end_offset + offset);
1586
1587                         uri->start = gtk_text_iter_get_offset(&start_iter);
1588
1589                         gtk_text_buffer_apply_tag_by_name(buffer, "link", &start_iter, &end_iter);
1590
1591                         uri->end = gtk_text_iter_get_offset(&end_iter);
1592                         uri->filename = NULL;
1593                         textview->uri_list =
1594                                 g_slist_prepend(textview->uri_list, uri);
1595                 }
1596         }
1597
1598         g_free(mybuf);
1599 }
1600
1601 #undef ADD_TXT_POS
1602
1603 static void textview_write_line(TextView *textview, const gchar *str,
1604                                 CodeConverter *conv, gboolean do_quote_folding)
1605 {
1606         GtkTextView *text;
1607         GtkTextBuffer *buffer;
1608         GtkTextIter iter;
1609         gchar buf[BUFFSIZE];
1610         gchar *fg_color;
1611         gint quotelevel = -1, real_quotelevel = -1;
1612         gchar quote_tag_str[10];
1613
1614         text = GTK_TEXT_VIEW(textview->text);
1615         buffer = gtk_text_view_get_buffer(text);
1616         gtk_text_buffer_get_end_iter(buffer, &iter);
1617
1618         if (!conv)
1619                 strncpy2(buf, str, sizeof(buf));
1620         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1621                 conv_localetodisp(buf, sizeof(buf), str);
1622
1623         strcrchomp(buf);
1624         fg_color = NULL;
1625
1626         /* change color of quotation
1627            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1628            Up to 3 levels of quotations are detected, and each
1629            level is colored using a different color. */
1630         if (prefs_common.enable_color
1631             && !textview->is_attachment
1632             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1633                 real_quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1634                 quotelevel = real_quotelevel;
1635                 /* set up the correct foreground color */
1636                 if (quotelevel > 2) {
1637                         /* recycle colors */
1638                         if (prefs_common.recycle_quote_colors)
1639                                 quotelevel %= 3;
1640                         else
1641                                 quotelevel = 2;
1642                 }
1643         }
1644
1645         if (quotelevel == -1)
1646                 fg_color = NULL;
1647         else {
1648                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1649                            "quote%d", quotelevel);
1650                 fg_color = quote_tag_str;
1651         }
1652
1653         if (prefs_common.enable_color) {
1654                 if (textview->is_diff) {
1655                         if (strncmp(buf, "+++ ", 4) == 0)
1656                                 fg_color = "diff-add-file";
1657                         else if (buf[0] == '+')
1658                                 fg_color = "diff-add";
1659                         else if (strncmp(buf, "--- ", 4) == 0)
1660                                 fg_color = "diff-del-file";
1661                         else if (buf[0] == '-')
1662                                 fg_color = "diff-del";
1663                         else if (strncmp(buf, "@@ ", 3) == 0 &&
1664                                         strcmp(buf+strlen(buf)-4, " @@\n") == 0)
1665                                 fg_color = "diff-hunk";
1666                 } else if (account_signatures_matchlist_str_found(buf,"%s\n")
1667                                 || account_signatures_matchlist_str_found(buf, "- %s\n")
1668                                 || textview->is_in_signature) {
1669                         fg_color = "signature";
1670                         textview->is_in_signature = TRUE;
1671                 }
1672         }
1673
1674         if (!textview->is_attachment && real_quotelevel > -1 && do_quote_folding) {
1675                 if (!g_utf8_validate(buf, -1, NULL)) {
1676                         gchar *utf8buf = NULL;
1677                         utf8buf = g_malloc(BUFFSIZE);
1678                         conv_localetodisp(utf8buf, BUFFSIZE, buf);
1679                         strncpy2(buf, utf8buf, BUFFSIZE-1);
1680                         g_free(utf8buf);
1681                 }
1682 do_quote:
1683                 if ( textview->prev_quote_level != real_quotelevel ) {
1684                         ClickableText *uri;
1685                         uri = g_new0(ClickableText, 1);
1686                         uri->uri = g_strdup("");
1687                         uri->data = g_strdup(buf);
1688                         uri->data_len = strlen(uri->data);
1689                         uri->start = gtk_text_iter_get_offset(&iter);
1690                         uri->is_quote = TRUE;
1691                         uri->quote_level = real_quotelevel;
1692                         uri->fg_color = g_strdup(fg_color);
1693
1694                         gtk_text_buffer_insert_with_tags_by_name
1695                                         (buffer, &iter, " [...]", -1,
1696                                          "qlink", fg_color, NULL);
1697                         uri->end = gtk_text_iter_get_offset(&iter);
1698                         gtk_text_buffer_insert(buffer, &iter, "  \n", -1);
1699
1700                         uri->filename = NULL;
1701                         textview->uri_list =
1702                                 g_slist_prepend(textview->uri_list, uri);
1703
1704                         textview->prev_quote_level = real_quotelevel;
1705                 } else {
1706                         GSList *last = textview->uri_list;
1707                         ClickableText *lasturi = NULL;
1708                         gint e_len = 0, n_len = 0;
1709
1710                         if (textview->uri_list) {
1711                                 lasturi = (ClickableText *)last->data;
1712                         } else {
1713                                 g_print("oops (%d %d)\n",
1714                                         real_quotelevel, textview->prev_quote_level);
1715                         }
1716                         if (lasturi) {
1717                                 if (lasturi->is_quote == FALSE) {
1718                                         textview->prev_quote_level = -1;
1719                                         goto do_quote;
1720                                 }
1721                                 e_len = lasturi->data ? lasturi->data_len:0;
1722                                 n_len = strlen(buf);
1723                                 lasturi->data = g_realloc((gchar *)lasturi->data, e_len + n_len + 1);
1724                                 strcpy((gchar *)lasturi->data + e_len, buf);
1725                                 *((gchar *)lasturi->data + e_len + n_len) = '\0';
1726                                 lasturi->data_len += n_len;
1727                         }
1728                 }
1729         } else {
1730                 textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1731                 textview->prev_quote_level = -1;
1732         }
1733 }
1734
1735 void textview_write_link(TextView *textview, const gchar *str,
1736                          const gchar *uri, CodeConverter *conv)
1737 {
1738         GtkTextView *text;
1739         GtkTextBuffer *buffer;
1740         GtkTextIter iter;
1741         gchar buf[BUFFSIZE];
1742         gchar *bufp;
1743         ClickableText *r_uri;
1744
1745         if (!str || *str == '\0')
1746                 return;
1747         if (!uri)
1748                 return;
1749
1750         while (uri && *uri && g_ascii_isspace(*uri))
1751                 uri++;
1752
1753         text = GTK_TEXT_VIEW(textview->text);
1754         buffer = gtk_text_view_get_buffer(text);
1755         gtk_text_buffer_get_end_iter(buffer, &iter);
1756
1757         if (!conv)
1758                 strncpy2(buf, str, sizeof(buf));
1759         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1760                 conv_utf8todisp(buf, sizeof(buf), str);
1761
1762         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1763                 return;
1764
1765         strcrchomp(buf);
1766
1767         gtk_text_buffer_get_end_iter(buffer, &iter);
1768         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1769                 gunichar ch;
1770
1771                 ch = g_utf8_get_char(bufp);
1772                 if (!g_unichar_isspace(ch))
1773                         break;
1774         }
1775         if (bufp > buf)
1776                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1777
1778         r_uri = g_new0(ClickableText, 1);
1779         r_uri->uri = g_strdup(uri);
1780         r_uri->start = gtk_text_iter_get_offset(&iter);
1781         gtk_text_buffer_insert_with_tags_by_name
1782                 (buffer, &iter, bufp, -1, "link", NULL);
1783         r_uri->end = gtk_text_iter_get_offset(&iter);
1784         r_uri->filename = NULL;
1785         textview->uri_list = g_slist_prepend(textview->uri_list, r_uri);
1786 }
1787
1788 static void textview_set_cursor(GdkWindow *window, GdkCursor *cursor)
1789 {
1790         if (GDK_IS_WINDOW(window))
1791                 gdk_window_set_cursor(window, cursor);
1792 }
1793 void textview_clear(TextView *textview)
1794 {
1795         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1796         GtkTextBuffer *buffer;
1797         GdkWindow *window = gtk_text_view_get_window(text,
1798                                 GTK_TEXT_WINDOW_TEXT);
1799
1800         buffer = gtk_text_view_get_buffer(text);
1801         gtk_text_buffer_set_text(buffer, "", -1);
1802         if (gtk_text_buffer_get_mark(buffer, "body_start"))
1803                 gtk_text_buffer_delete_mark_by_name(buffer, "body_start");
1804         if (gtk_text_buffer_get_mark(buffer, "body_end"))
1805                 gtk_text_buffer_delete_mark_by_name(buffer, "body_end");
1806
1807         TEXTVIEW_STATUSBAR_POP(textview);
1808         textview_uri_list_remove_all(textview->uri_list);
1809         textview->uri_list = NULL;
1810         textview->uri_hover = NULL;
1811         textview->prev_quote_level = -1;
1812
1813         textview->body_pos = 0;
1814         if (textview->image)
1815                 gtk_widget_destroy(textview->image);
1816         textview->image = NULL;
1817         textview->avatar_type = 0;
1818
1819         if (textview->messageview->mainwin->cursor_count == 0) {
1820                 textview_set_cursor(window, text_cursor);
1821         } else {
1822                 textview_set_cursor(window, watch_cursor);
1823         }
1824 }
1825
1826 void textview_destroy(TextView *textview)
1827 {
1828         GtkTextBuffer *buffer;
1829         GtkClipboard *clipboard;
1830
1831         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1832         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
1833         gtk_text_buffer_remove_selection_clipboard(buffer, clipboard);
1834
1835         textview_uri_list_remove_all(textview->uri_list);
1836         textview->uri_list = NULL;
1837         textview->prev_quote_level = -1;
1838
1839         g_free(textview);
1840 }
1841
1842 #define CHANGE_TAG_FONT(tagname, font) { \
1843         tag = gtk_text_tag_table_lookup(tags, tagname); \
1844         if (tag) \
1845                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1846 }
1847
1848 void textview_set_font(TextView *textview, const gchar *codeset)
1849 {
1850         GtkTextTag *tag;
1851         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1852         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1853         PangoFontDescription *font_desc, *bold_font_desc;
1854
1855         font_desc = pango_font_description_from_string
1856                                         (NORMAL_FONT);
1857         if (font_desc) {
1858                 gtk_widget_modify_font(textview->text, font_desc);
1859                 CHANGE_TAG_FONT("header", font_desc);
1860                 CHANGE_TAG_FONT("hlink", font_desc);
1861                 pango_font_description_free(font_desc);
1862         }
1863         if (prefs_common.derive_from_normal_font || !BOLD_FONT) {
1864                 bold_font_desc = pango_font_description_from_string
1865                                                 (NORMAL_FONT);
1866                 if (bold_font_desc)
1867                         pango_font_description_set_weight
1868                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1869         } else {
1870                 bold_font_desc = pango_font_description_from_string
1871                                                 (BOLD_FONT);
1872         }
1873         if (bold_font_desc) {
1874                 CHANGE_TAG_FONT("header_title", bold_font_desc);
1875                 pango_font_description_free(bold_font_desc);
1876         }
1877
1878         if (prefs_common.textfont) {
1879                 PangoFontDescription *font_desc;
1880
1881                 font_desc = pango_font_description_from_string
1882                                                 (prefs_common.textfont);
1883                 if (font_desc) {
1884                         gtk_widget_modify_font(textview->text, font_desc);
1885                         pango_font_description_free(font_desc);
1886                 }
1887         }
1888         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1889                                              prefs_common.line_space / 2);
1890         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1891                                              prefs_common.line_space / 2);
1892 }
1893
1894 void textview_set_text(TextView *textview, const gchar *text)
1895 {
1896         GtkTextView *view;
1897         GtkTextBuffer *buffer;
1898
1899         cm_return_if_fail(textview != NULL);
1900         cm_return_if_fail(text != NULL);
1901
1902         textview_clear(textview);
1903
1904         view = GTK_TEXT_VIEW(textview->text);
1905         buffer = gtk_text_view_get_buffer(view);
1906         gtk_text_buffer_set_text(buffer, text, strlen(text));
1907 }
1908
1909 enum
1910 {
1911         H_DATE          = 0,
1912         H_FROM          = 1,
1913         H_TO            = 2,
1914         H_NEWSGROUPS    = 3,
1915         H_SUBJECT       = 4,
1916         H_CC            = 5,
1917         H_REPLY_TO      = 6,
1918         H_FOLLOWUP_TO   = 7,
1919         H_X_MAILER      = 8,
1920         H_X_NEWSREADER  = 9,
1921         H_USER_AGENT    = 10,
1922         H_ORGANIZATION  = 11,
1923 };
1924
1925 void textview_set_position(TextView *textview, gint pos)
1926 {
1927         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1928
1929         gtkut_text_view_set_position(text, pos);
1930 }
1931
1932 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1933 {
1934         gchar buf[BUFFSIZE];
1935         GPtrArray *headers, *sorted_headers;
1936         GSList *disphdr_list;
1937         Header *header;
1938         gint i;
1939
1940         cm_return_val_if_fail(fp != NULL, NULL);
1941
1942         if (prefs_common.show_all_headers) {
1943                 headers = procheader_get_header_array_asis(fp);
1944                 sorted_headers = g_ptr_array_new();
1945                 for (i = 0; i < headers->len; i++) {
1946                         header = g_ptr_array_index(headers, i);
1947                         if (!procheader_header_is_internal(header->name))
1948                                 g_ptr_array_add(sorted_headers, header);
1949                         else
1950                                 procheader_header_free(header);
1951                 }
1952                 g_ptr_array_free(headers, TRUE);
1953                 return sorted_headers;
1954         }
1955
1956         if (!prefs_common.display_header) {
1957                 while (fgets(buf, sizeof(buf), fp) != NULL)
1958                         if (buf[0] == '\r' || buf[0] == '\n') break;
1959                 return NULL;
1960         }
1961
1962         headers = procheader_get_header_array_asis(fp);
1963
1964         sorted_headers = g_ptr_array_new();
1965
1966         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1967              disphdr_list = disphdr_list->next) {
1968                 DisplayHeaderProp *dp =
1969                         (DisplayHeaderProp *)disphdr_list->data;
1970
1971                 for (i = 0; i < headers->len; i++) {
1972                         header = g_ptr_array_index(headers, i);
1973
1974                         if (procheader_headername_equal(header->name,
1975                                                         dp->name)) {
1976                                 if (dp->hidden)
1977                                         procheader_header_free(header);
1978                                 else
1979                                         g_ptr_array_add(sorted_headers, header);
1980
1981                                 g_ptr_array_remove_index(headers, i);
1982                                 i--;
1983                         }
1984                 }
1985         }
1986
1987         if (prefs_common.show_other_header) {
1988                 for (i = 0; i < headers->len; i++) {
1989                         header = g_ptr_array_index(headers, i);
1990                         if (!procheader_header_is_internal(header->name)) {
1991                                 g_ptr_array_add(sorted_headers, header);
1992                         } else {
1993                                 procheader_header_free(header);
1994                         }
1995                 }
1996                 g_ptr_array_free(headers, TRUE);
1997         } else
1998                 procheader_header_array_destroy(headers);
1999
2000
2001         return sorted_headers;
2002 }
2003
2004 static void textview_show_avatar(TextView *textview)
2005 {
2006         GtkAllocation allocation;
2007         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2008         MsgInfo *msginfo = textview->messageview->msginfo;
2009         int x = 0;
2010         AvatarRender *avatarr;
2011
2012         if (prefs_common.display_header_pane || !prefs_common.display_xface)
2013                 goto bail;
2014
2015         avatarr = avatars_avatarrender_new(msginfo);
2016         hooks_invoke(AVATAR_IMAGE_RENDER_HOOKLIST, avatarr);
2017
2018         if (!avatarr->image) {
2019                 avatars_avatarrender_free(avatarr);
2020                 goto bail;
2021         }
2022
2023         if (textview->image)
2024                 gtk_widget_destroy(textview->image);
2025
2026         textview->image = avatarr->image;
2027         textview->avatar_type = avatarr->type;
2028         avatarr->image = NULL; /* avoid destroying */
2029         avatars_avatarrender_free(avatarr);
2030
2031         gtk_widget_show(textview->image);
2032
2033         gtk_widget_get_allocation(textview->text, &allocation);
2034         x = allocation.width - WIDTH -5;
2035
2036         gtk_text_view_add_child_in_window(text, textview->image,
2037                 GTK_TEXT_WINDOW_TEXT, x, 5);
2038
2039         gtk_widget_show_all(textview->text);
2040
2041         return;
2042 bail:
2043         if (textview->image)
2044                 gtk_widget_destroy(textview->image);
2045         textview->image = NULL;
2046         textview->avatar_type = 0;
2047 }
2048
2049 void textview_show_icon(TextView *textview, const gchar *stock_id)
2050 {
2051         GtkAllocation allocation;
2052         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2053         int x = 0;
2054
2055         if (textview->image)
2056                 gtk_widget_destroy(textview->image);
2057
2058         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
2059         cm_return_if_fail(textview->image != NULL);
2060
2061         gtk_widget_show(textview->image);
2062
2063         gtk_widget_get_allocation(textview->text, &allocation);
2064         x = allocation.width - WIDTH -5;
2065
2066         gtk_text_view_add_child_in_window(text, textview->image,
2067                 GTK_TEXT_WINDOW_TEXT, x, 5);
2068
2069         gtk_widget_show_all(textview->text);
2070
2071
2072         return;
2073 }
2074
2075 static void textview_save_contact_pic(TextView *textview)
2076 {
2077 #ifndef USE_ALT_ADDRBOOK
2078         MsgInfo *msginfo = textview->messageview->msginfo;
2079         gchar *filename = NULL;
2080         GError *error = NULL;
2081         GdkPixbuf *picture = NULL;
2082
2083         if (!msginfo->extradata || !msginfo->extradata->avatars)
2084                 return;
2085
2086         if (textview->avatar_type > AVATAR_FACE)
2087                 return;
2088
2089         if (textview->image)
2090                 picture = gtk_image_get_pixbuf(GTK_IMAGE(textview->image));
2091
2092         filename = addrindex_get_picture_file(msginfo->from);
2093         if (!filename)
2094                 return;
2095         if (!is_file_exist(filename)) {
2096                 gdk_pixbuf_save(picture, filename, "png", &error, NULL);
2097                 if (error) {
2098                         g_warning("Failed to save image: %s",
2099                                         error->message);
2100                         g_error_free(error);
2101                 }
2102         }
2103         g_free(filename);
2104 #else
2105         /* new address book */
2106 #endif
2107 }
2108
2109 static void textview_show_contact_pic(TextView *textview)
2110 {
2111 #ifndef USE_ALT_ADDRBOOK
2112         MsgInfo *msginfo = textview->messageview->msginfo;
2113         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2114         int x = 0;
2115         gchar *filename = NULL;
2116         GError *error = NULL;
2117         GdkPixbuf *picture = NULL;
2118         gint w, h;
2119         GtkAllocation allocation;
2120
2121         if (prefs_common.display_header_pane
2122                 || !prefs_common.display_xface)
2123                 goto bail;
2124
2125         if (msginfo->extradata && msginfo->extradata->avatars)
2126                 return;
2127
2128         if (textview->image)
2129                 gtk_widget_destroy(textview->image);
2130
2131         filename = addrindex_get_picture_file(msginfo->from);
2132
2133         if (!filename)
2134                 goto bail;
2135         if (!is_file_exist(filename)) {
2136                 g_free(filename);
2137                 goto bail;
2138         }
2139
2140         gdk_pixbuf_get_file_info(filename, &w, &h);
2141
2142         if (w > 48 || h > 48)
2143                 picture = gdk_pixbuf_new_from_file_at_scale(filename,
2144                                                 48, 48, TRUE, &error);
2145         else
2146                 picture = gdk_pixbuf_new_from_file(filename, &error);
2147
2148         if (error) {
2149                 debug_print("Failed to import image: %s\n",
2150                                 error->message);
2151                 g_error_free(error);
2152                 goto bail;
2153         }
2154         g_free(filename);
2155
2156         if (picture) {
2157                 textview->image = gtk_image_new_from_pixbuf(picture);
2158                 g_object_unref(picture);
2159         }
2160         cm_return_if_fail(textview->image != NULL);
2161
2162         gtk_widget_show(textview->image);
2163
2164         gtk_widget_get_allocation(textview->text, &allocation);
2165         x = allocation.width - WIDTH -5;
2166
2167         gtk_text_view_add_child_in_window(text, textview->image,
2168                 GTK_TEXT_WINDOW_TEXT, x, 5);
2169
2170         gtk_widget_show_all(textview->text);
2171
2172         return;
2173 bail:
2174         if (textview->image)
2175                 gtk_widget_destroy(textview->image);
2176         textview->image = NULL;
2177         textview->avatar_type = 0;
2178 #else
2179         /* new address book */
2180 #endif
2181 }
2182
2183 static gint textview_tag_cmp_list(gconstpointer a, gconstpointer b)
2184 {
2185         gint id_a = GPOINTER_TO_INT(a);
2186         gint id_b = GPOINTER_TO_INT(b);
2187         const gchar *tag_a = tags_get_tag(id_a);
2188         const gchar *tag_b = tags_get_tag(id_b);
2189
2190         if (tag_a == NULL)
2191                 return tag_b == NULL ? 0:1;
2192
2193         if (tag_b == NULL)
2194                 return 1;
2195
2196         return g_utf8_collate(tag_a, tag_b);
2197 }
2198
2199
2200 static void textview_show_tags(TextView *textview)
2201 {
2202         MsgInfo *msginfo = textview->messageview->msginfo;
2203         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2204         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
2205         GtkTextIter iter;
2206         ClickableText *uri;
2207         GSList *cur, *orig;
2208         gboolean found_tag = FALSE;
2209
2210         if (!msginfo->tags)
2211                 return;
2212
2213         cur = orig = g_slist_sort(g_slist_copy(msginfo->tags), textview_tag_cmp_list);
2214
2215         for (; cur; cur = cur->next) {
2216                 if (tags_get_tag(GPOINTER_TO_INT(cur->data)) != NULL) {
2217                         found_tag = TRUE;
2218                         break;
2219                 }
2220         }
2221         if (!found_tag) {
2222                 g_slist_free(orig);
2223                 return;
2224         }
2225
2226         gtk_text_buffer_get_end_iter (buffer, &iter);
2227         gtk_text_buffer_insert_with_tags_by_name(buffer,
2228                 &iter, _("Tags: "), -1,
2229                 "header_title", "header", "tags", NULL);
2230
2231         for (cur = orig; cur; cur = cur->next) {
2232                 const gchar *cur_tag = tags_get_tag(GPOINTER_TO_INT(cur->data));
2233                 if (!cur_tag)
2234                         continue;
2235                 uri = g_new0(ClickableText, 1);
2236                 uri->uri = g_strdup("");
2237                 uri->start = gtk_text_iter_get_offset(&iter);
2238                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
2239                         cur_tag, -1,
2240                         "link", "header", "tags", NULL);
2241                 uri->end = gtk_text_iter_get_offset(&iter);
2242                 uri->filename = g_strdup_printf("sc://search_tags:%s", cur_tag);
2243                 uri->data = NULL;
2244                 textview->uri_list =
2245                         g_slist_prepend(textview->uri_list, uri);
2246                 if (cur->next && tags_get_tag(GPOINTER_TO_INT(cur->next->data)))
2247                         gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, ", ", 2,
2248                                 "header", "tags", NULL);
2249                 else
2250                         gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, " ", 1,
2251                                 "header", "tags", NULL);
2252         }
2253         g_slist_free(orig);
2254
2255         gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
2256                 "header", "tags", NULL);
2257 }
2258
2259 static void textview_show_header(TextView *textview, GPtrArray *headers)
2260 {
2261         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2262         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
2263         GtkTextIter iter;
2264         Header *header;
2265         gint i;
2266
2267         cm_return_if_fail(headers != NULL);
2268
2269         for (i = 0; i < headers->len; i++) {
2270                 header = g_ptr_array_index(headers, i);
2271                 cm_return_if_fail(header->name != NULL);
2272
2273                 gtk_text_buffer_get_end_iter (buffer, &iter);
2274                 if(prefs_common.trans_hdr == TRUE) {
2275                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
2276                         gchar *trans_hdr = gettext(hdr);
2277                         gtk_text_buffer_insert_with_tags_by_name(buffer,
2278                                 &iter, trans_hdr, -1,
2279                                 "header_title", "header", NULL);
2280                         gtk_text_buffer_insert_with_tags_by_name(buffer,
2281                                 &iter, ":", 1, "header_title", "header", NULL);
2282                         g_free(hdr);
2283                 } else {
2284                         gtk_text_buffer_insert_with_tags_by_name(buffer,
2285                                 &iter, header->name,
2286                                 -1, "header_title", "header", NULL);
2287                 }
2288                 if (header->name[strlen(header->name) - 1] != ' ')
2289                 gtk_text_buffer_insert_with_tags_by_name
2290                                 (buffer, &iter, " ", 1,
2291                                  "header_title", "header", NULL);
2292
2293                 if (procheader_headername_equal(header->name, "Subject") ||
2294                     procheader_headername_equal(header->name, "From")    ||
2295                     procheader_headername_equal(header->name, "To")      ||
2296                     procheader_headername_equal(header->name, "Cc"))
2297                         unfold_line(header->body);
2298
2299                 if (procheader_headername_equal(header->name, "Date") &&
2300                     prefs_common.msgview_date_format) {
2301                         gchar hbody[80];
2302
2303                         procheader_date_parse(hbody, header->body, sizeof(hbody));
2304                         gtk_text_buffer_get_end_iter (buffer, &iter);
2305                         gtk_text_buffer_insert_with_tags_by_name
2306                                 (buffer, &iter, hbody, -1, "header", NULL);
2307                 } else if ((procheader_headername_equal(header->name, "X-Mailer") ||
2308                                 procheader_headername_equal(header->name,
2309                                                  "X-Newsreader")) &&
2310                                 (strstr(header->body, "Claws Mail") != NULL ||
2311                                 strstr(header->body, "Sylpheed-Claws") != NULL)) {
2312                         gtk_text_buffer_get_end_iter (buffer, &iter);
2313                         gtk_text_buffer_insert_with_tags_by_name
2314                                 (buffer, &iter, header->body, -1,
2315                                  "header", "emphasis", NULL);
2316                 } else {
2317                         gboolean hdr =
2318                           procheader_headername_equal(header->name, "From") ||
2319                           procheader_headername_equal(header->name, "To") ||
2320                           procheader_headername_equal(header->name, "Cc") ||
2321                           procheader_headername_equal(header->name, "Bcc") ||
2322                           procheader_headername_equal(header->name, "Reply-To") ||
2323                           procheader_headername_equal(header->name, "Sender");
2324                         textview_make_clickable_parts(textview, "header",
2325                                                       "hlink", header->body,
2326                                                       hdr);
2327                 }
2328                 gtk_text_buffer_get_end_iter (buffer, &iter);
2329                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
2330                                                          "header", NULL);
2331         }
2332
2333         textview_show_avatar(textview);
2334
2335         textview_save_contact_pic(textview);
2336         textview_show_contact_pic(textview);
2337 }
2338
2339 gboolean textview_search_string(TextView *textview, const gchar *str,
2340                                 gboolean case_sens)
2341 {
2342         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2343
2344         return gtkut_text_view_search_string(text, str, case_sens);
2345 }
2346
2347 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
2348                                          gboolean case_sens)
2349 {
2350         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2351
2352         return gtkut_text_view_search_string_backward(text, str, case_sens);
2353 }
2354
2355 void textview_scroll_one_line(TextView *textview, gboolean up)
2356 {
2357         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2358         GtkAdjustment *vadj = gtk_text_view_get_vadjustment(text);
2359
2360         gtkutils_scroll_one_line(GTK_WIDGET(text), vadj, up);
2361 }
2362
2363 gboolean textview_scroll_page(TextView *textview, gboolean up)
2364 {
2365         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2366         GtkAdjustment *vadj = gtk_text_view_get_vadjustment(text);
2367
2368         return gtkutils_scroll_page(GTK_WIDGET(text), vadj, up);
2369 }
2370
2371 void textview_scroll_max(TextView *textview, gboolean up)
2372 {
2373         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2374         GtkTextIter iter;
2375
2376         if (up) {
2377                 gtk_text_buffer_get_start_iter(buffer, &iter);
2378                 gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(textview->text),
2379                                                 &iter, 0.0, TRUE, 0.0, 1.0);
2380
2381         } else {
2382                 gtk_text_buffer_get_end_iter(buffer, &iter);
2383                 gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(textview->text),
2384                                                 &iter, 0.0, TRUE, 0.0, 0.0);
2385         }
2386 }
2387
2388 #define KEY_PRESS_EVENT_STOP() \
2389         g_signal_stop_emission_by_name(G_OBJECT(widget), \
2390                                        "key_press_event");
2391
2392 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
2393                                  TextView *textview)
2394 {
2395         GdkWindow *window = NULL;
2396         SummaryView *summaryview = NULL;
2397         MessageView *messageview = textview->messageview;
2398
2399         if (!event) return FALSE;
2400         if (messageview->mainwin)
2401                 summaryview = messageview->mainwin->summaryview;
2402
2403         switch (event->keyval) {
2404         case GDK_KEY_Tab:
2405         case GDK_KEY_Left:
2406         case GDK_KEY_Up:
2407         case GDK_KEY_Right:
2408         case GDK_KEY_Down:
2409         case GDK_KEY_Page_Up:
2410         case GDK_KEY_Page_Down:
2411         case GDK_KEY_Control_L:
2412         case GDK_KEY_Control_R:
2413                 return FALSE;
2414         case GDK_KEY_Home:
2415         case GDK_KEY_End:
2416                 textview_scroll_max(textview,(event->keyval == GDK_KEY_Home));
2417                 return TRUE;
2418         case GDK_KEY_space:
2419                 if (summaryview)
2420                         summary_pass_key_press_event(summaryview, event);
2421                 else
2422                         mimeview_scroll_page
2423                                 (messageview->mimeview,
2424                                  (event->state &
2425                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2426                 break;
2427         case GDK_KEY_BackSpace:
2428                 mimeview_scroll_page(messageview->mimeview, TRUE);
2429                 break;
2430         case GDK_KEY_Return:
2431         case GDK_KEY_KP_Enter:
2432                 mimeview_scroll_one_line
2433                         (messageview->mimeview, (event->state &
2434                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2435                 break;
2436         case GDK_KEY_Delete:
2437                 if (summaryview)
2438                         summary_pass_key_press_event(summaryview, event);
2439                 break;
2440         default:
2441                 if (messageview->mainwin) {
2442                         window = gtk_widget_get_window(messageview->mainwin->window);
2443                         if (summaryview &&
2444                             event->window != window) {
2445                                 GdkEventKey tmpev = *event;
2446
2447                                 tmpev.window = window;
2448                                 KEY_PRESS_EVENT_STOP();
2449                                 gtk_widget_event(messageview->mainwin->window,
2450                                                  (GdkEvent *)&tmpev);
2451                         }
2452                 }
2453                 break;
2454         }
2455
2456         return TRUE;
2457 }
2458
2459 static gboolean textview_motion_notify(GtkWidget *widget,
2460                                        GdkEventMotion *event,
2461                                        TextView *textview)
2462 {
2463         if (textview->loading)
2464                 return FALSE;
2465         textview_uri_update(textview, event->x, event->y);
2466         gdk_window_get_pointer(gtk_widget_get_window(widget), NULL, NULL, NULL);
2467
2468         return FALSE;
2469 }
2470
2471 static gboolean textview_leave_notify(GtkWidget *widget,
2472                                       GdkEventCrossing *event,
2473                                       TextView *textview)
2474 {
2475         if (textview->loading)
2476                 return FALSE;
2477         textview_uri_update(textview, -1, -1);
2478
2479         return FALSE;
2480 }
2481
2482 static gboolean textview_visibility_notify(GtkWidget *widget,
2483                                            GdkEventVisibility *event,
2484                                            TextView *textview)
2485 {
2486         gint wx, wy;
2487         GdkWindow *window;
2488
2489         if (textview->loading)
2490                 return FALSE;
2491
2492         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
2493                                           GTK_TEXT_WINDOW_TEXT);
2494
2495         /* check if occurred for the text window part */
2496         if (window != event->window)
2497                 return FALSE;
2498
2499         gdk_window_get_pointer(gtk_widget_get_window(widget), &wx, &wy, NULL);
2500         textview_uri_update(textview, wx, wy);
2501
2502         return FALSE;
2503 }
2504
2505 void textview_cursor_wait(TextView *textview)
2506 {
2507         GdkWindow *window = gtk_text_view_get_window(
2508                         GTK_TEXT_VIEW(textview->text),
2509                         GTK_TEXT_WINDOW_TEXT);
2510         textview_set_cursor(window, watch_cursor);
2511 }
2512
2513 void textview_cursor_normal(TextView *textview)
2514 {
2515         GdkWindow *window = gtk_text_view_get_window(
2516                         GTK_TEXT_VIEW(textview->text),
2517                         GTK_TEXT_WINDOW_TEXT);
2518         textview_set_cursor(window, text_cursor);
2519 }
2520
2521 static void textview_uri_update(TextView *textview, gint x, gint y)
2522 {
2523         GtkTextBuffer *buffer;
2524         GtkTextIter start_iter, end_iter;
2525         ClickableText *uri = NULL;
2526
2527         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2528
2529         if (x != -1 && y != -1) {
2530                 gint bx, by;
2531                 GtkTextIter iter;
2532                 GSList *tags;
2533                 GSList *cur;
2534
2535                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
2536                                                       GTK_TEXT_WINDOW_WIDGET,
2537                                                       x, y, &bx, &by);
2538                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
2539                                                    &iter, bx, by);
2540
2541                 tags = gtk_text_iter_get_tags(&iter);
2542                 for (cur = tags; cur != NULL; cur = cur->next) {
2543                         GtkTextTag *tag = cur->data;
2544                         char *name;
2545
2546                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
2547
2548                         if ((!strcmp(name, "link") || !strcmp(name, "hlink"))
2549                             && textview_get_uri_range(textview, &iter, tag,
2550                                                       &start_iter, &end_iter)) {
2551
2552                                 uri = textview_get_uri_from_range(textview,
2553                                                                   &iter, tag,
2554                                                                   &start_iter,
2555                                                                   &end_iter);
2556                         }
2557                         g_free(name);
2558                         if (uri)
2559                                 break;
2560                 }
2561                 g_slist_free(tags);
2562         }
2563
2564         if (uri != textview->uri_hover) {
2565                 GdkWindow *window;
2566
2567                 if (textview->uri_hover)
2568                         gtk_text_buffer_remove_tag_by_name(buffer,
2569                                                            "link-hover",
2570                                                            &textview->uri_hover_start_iter,
2571                                                            &textview->uri_hover_end_iter);
2572
2573                 textview->uri_hover = uri;
2574                 if (uri) {
2575                         textview->uri_hover_start_iter = start_iter;
2576                         textview->uri_hover_end_iter = end_iter;
2577                 }
2578
2579                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
2580                                                   GTK_TEXT_WINDOW_TEXT);
2581                 if (textview->messageview->mainwin->cursor_count == 0) {
2582                         textview_set_cursor(window, uri ? hand_cursor : text_cursor);
2583                 } else {
2584                         textview_set_cursor(window, watch_cursor);
2585                 }
2586
2587                 TEXTVIEW_STATUSBAR_POP(textview);
2588
2589                 if (uri) {
2590                         if (!uri->is_quote)
2591                                 gtk_text_buffer_apply_tag_by_name(buffer,
2592                                                           "link-hover",
2593                                                           &start_iter,
2594                                                           &end_iter);
2595                         TEXTVIEW_STATUSBAR_PUSH(textview, uri->uri);
2596                 }
2597         }
2598 }
2599
2600 static gboolean textview_get_uri_range(TextView *textview,
2601                                        GtkTextIter *iter,
2602                                        GtkTextTag *tag,
2603                                        GtkTextIter *start_iter,
2604                                        GtkTextIter *end_iter)
2605 {
2606         return get_tag_range(iter, tag, start_iter, end_iter);
2607 }
2608
2609 static ClickableText *textview_get_uri_from_range(TextView *textview,
2610                                               GtkTextIter *iter,
2611                                               GtkTextTag *tag,
2612                                               GtkTextIter *start_iter,
2613                                               GtkTextIter *end_iter)
2614 {
2615         gint start_pos, end_pos, cur_pos;
2616         ClickableText *uri = NULL;
2617         GSList *cur;
2618
2619         start_pos = gtk_text_iter_get_offset(start_iter);
2620         end_pos = gtk_text_iter_get_offset(end_iter);
2621         cur_pos = gtk_text_iter_get_offset(iter);
2622
2623         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
2624                 ClickableText *uri_ = (ClickableText *)cur->data;
2625                 if (start_pos == uri_->start &&
2626                     end_pos ==  uri_->end) {
2627                         uri = uri_;
2628                         break;
2629                 }
2630         }
2631         for (cur = textview->uri_list; uri == NULL && cur != NULL; cur = cur->next) {
2632                 ClickableText *uri_ = (ClickableText *)cur->data;
2633                 if (start_pos == uri_->start ||
2634                            end_pos == uri_->end) {
2635                         /* in case of contiguous links, textview_get_uri_range
2636                          * returns a broader range (start of 1st link to end
2637                          * of last link).
2638                          * In that case, correct link is the one covering
2639                          * current iter.
2640                          */
2641                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
2642                                 uri = uri_;
2643                                 break;
2644                         }
2645                 }
2646         }
2647
2648         return uri;
2649 }
2650
2651 static ClickableText *textview_get_uri(TextView *textview,
2652                                    GtkTextIter *iter,
2653                                    GtkTextTag *tag)
2654 {
2655         GtkTextIter start_iter, end_iter;
2656         ClickableText *uri = NULL;
2657
2658         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2659                                    &end_iter))
2660                 uri = textview_get_uri_from_range(textview, iter, tag,
2661                                                   &start_iter, &end_iter);
2662
2663         return uri;
2664 }
2665
2666 static void textview_shift_uris_after(TextView *textview, GSList *start_list, gint start, gint shift)
2667 {
2668         GSList *cur;
2669         if (!start_list)
2670                 start_list = textview->uri_list;
2671
2672         for (cur = start_list; cur; cur = cur->next) {
2673                 ClickableText *uri = (ClickableText *)cur->data;
2674                 if (uri->start <= start)
2675                         continue;
2676                 uri->start += shift;
2677                 uri->end += shift;
2678         }
2679 }
2680
2681 static void textview_remove_uris_in(TextView *textview, gint start, gint end)
2682 {
2683         GSList *cur;
2684         for (cur = textview->uri_list; cur; ) {
2685                 ClickableText *uri = (ClickableText *)cur->data;
2686                 if (uri->start > start && uri->end < end) {
2687                         cur = cur->next;
2688                         textview->uri_list = g_slist_remove(textview->uri_list, uri);
2689                         g_free(uri->uri);
2690                         g_free(uri->filename);
2691                         if (uri->is_quote) {
2692                                 g_free(uri->fg_color);
2693                                 g_free(uri->data);
2694                                 /* (only free data in quotes uris) */
2695                         }
2696                         g_free(uri);
2697                 } else {
2698                         cur = cur->next;
2699                 }
2700
2701         }
2702 }
2703
2704 static void textview_toggle_quote(TextView *textview, GSList *start_list, ClickableText *uri, gboolean expand_only)
2705 {
2706         GtkTextIter start, end;
2707         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2708
2709         if (!uri->is_quote)
2710                 return;
2711
2712         if (uri->q_expanded && expand_only)
2713                 return;
2714
2715         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2716         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2717         if (textview->uri_hover)
2718                 gtk_text_buffer_remove_tag_by_name(buffer,
2719                                                    "link-hover",
2720                                                    &textview->uri_hover_start_iter,
2721                                                    &textview->uri_hover_end_iter);
2722         textview->uri_hover = NULL;
2723         gtk_text_buffer_remove_tag_by_name(buffer,
2724                                            "qlink",
2725                                            &start,
2726                                            &end);
2727         /* when shifting URIs start and end, we have to do it per-UTF8-char
2728          * so use g_utf8_strlen(). OTOH, when inserting in the text buffer,
2729          * we have to pass a number of bytes, so use strlen(). disturbing. */
2730
2731         if (!uri->q_expanded) {
2732                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2733                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2734                 textview_shift_uris_after(textview, start_list, uri->start,
2735                         g_utf8_strlen((gchar *)uri->data, -1)-strlen(" [...]\n"));
2736                 gtk_text_buffer_delete(buffer, &start, &end);
2737                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2738                 gtk_text_buffer_insert_with_tags_by_name
2739                                 (buffer, &start, (gchar *)uri->data,
2740                                  strlen((gchar *)uri->data)-1,
2741                                  "qlink", (gchar *)uri->fg_color, NULL);
2742                 uri->end = gtk_text_iter_get_offset(&start);
2743                 textview_make_clickable_parts_later(textview,
2744                                           uri->start, uri->end);
2745                 uri->q_expanded = TRUE;
2746         } else {
2747                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2748                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2749                 textview_remove_uris_in(textview, uri->start, uri->end);
2750                 textview_shift_uris_after(textview, start_list, uri->start,
2751                         strlen(" [...]\n")-g_utf8_strlen((gchar *)uri->data, -1));
2752                 gtk_text_buffer_delete(buffer, &start, &end);
2753                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2754                 gtk_text_buffer_insert_with_tags_by_name
2755                                 (buffer, &start, " [...]", -1,
2756                                  "qlink", (gchar *)uri->fg_color, NULL);
2757                 uri->end = gtk_text_iter_get_offset(&start);
2758                 uri->q_expanded = FALSE;
2759         }
2760         if (textview->messageview->mainwin->cursor_count == 0) {
2761                 textview_cursor_normal(textview);
2762         } else {
2763                 textview_cursor_wait(textview);
2764         }
2765 }
2766 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2767                                             GdkEvent *event, GtkTextIter *iter,
2768                                             TextView *textview)
2769 {
2770         GdkEventButton *bevent;
2771         ClickableText *uri = NULL;
2772         char *tagname;
2773         gboolean qlink = FALSE;
2774
2775         if (!event)
2776                 return FALSE;
2777
2778         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2779                 && event->type != GDK_MOTION_NOTIFY)
2780                 return FALSE;
2781
2782         uri = textview_get_uri(textview, iter, tag);
2783         if (!uri)
2784                 return FALSE;
2785
2786         g_object_get(G_OBJECT(tag), "name", &tagname, NULL);
2787
2788         if (!strcmp(tagname, "qlink"))
2789                 qlink = TRUE;
2790
2791         g_free(tagname);
2792
2793         bevent = (GdkEventButton *) event;
2794
2795         /* doubleclick: open compose / add address / browser */
2796         if (qlink && event->type == GDK_BUTTON_PRESS && bevent->button != 1) {
2797                 /* pass rightclick through */
2798                 return FALSE;
2799         } else if ((event->type == (qlink ? GDK_2BUTTON_PRESS:GDK_BUTTON_PRESS) && bevent->button == 1) ||
2800                 bevent->button == 2 || bevent->button == 3) {
2801                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2802                         MimeView *mimeview =
2803                                 (textview->messageview)?
2804                                         textview->messageview->mimeview:NULL;
2805                         if (mimeview && bevent->button == 1) {
2806                                 mimeview_handle_cmd(mimeview, uri->filename, NULL, uri->data);
2807                         } else if (mimeview && bevent->button == 2 &&
2808                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2809                                 mimeview_handle_cmd(mimeview, "sc://open_attachment", NULL, uri->data);
2810                         } else if (mimeview && bevent->button == 3 &&
2811                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2812                                 mimeview_handle_cmd(mimeview, "sc://menu_attachment", bevent, uri->data);
2813                         }
2814                         return TRUE;
2815                 } else if (qlink && bevent->button == 1) {
2816                         if (prefs_common.hide_quoted) {
2817                                 textview_toggle_quote(textview, NULL, uri, FALSE);
2818                                 return TRUE;
2819                         } else
2820                                 return FALSE;
2821                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2822                         if (bevent->button == 3) {
2823                                 g_object_set_data(
2824                                         G_OBJECT(textview->mail_popup_menu),
2825                                         "menu_button", uri);
2826                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2827                                                NULL, NULL, NULL, NULL,
2828                                                bevent->button, bevent->time);
2829                         } else {
2830                                 PrefsAccount *account = NULL;
2831                                 FolderItem   *folder_item = NULL;
2832                                 Compose *compose;
2833
2834                                 if (textview->messageview && textview->messageview->msginfo &&
2835                                     textview->messageview->msginfo->folder) {
2836
2837
2838                                         folder_item = textview->messageview->msginfo->folder;
2839                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2840                                                 account = account_find_from_id(folder_item->prefs->default_account);
2841                                         if (!account)
2842                                                 account = account_find_from_item(folder_item);
2843                                 }
2844                                 compose = compose_new_with_folderitem(account,
2845                                                                 folder_item, uri->uri + 7);
2846                                 compose_check_for_email_account(compose);
2847                         }
2848                         return TRUE;
2849                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2850                         if (bevent->button == 1 &&
2851                             textview_uri_security_check(textview, uri) == TRUE)
2852                                         open_uri(uri->uri,
2853                                                  prefs_common_get_uri_cmd());
2854                         else if (bevent->button == 3 && !qlink) {
2855                                 g_object_set_data(
2856                                         G_OBJECT(textview->link_popup_menu),
2857                                         "menu_button", uri);
2858                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2859                                                NULL, NULL, NULL, NULL,
2860                                                bevent->button, bevent->time);
2861                         }
2862                         return TRUE;
2863                 } else {
2864                         if (bevent->button == 3 && !qlink) {
2865                                 g_object_set_data(
2866                                         G_OBJECT(textview->file_popup_menu),
2867                                         "menu_button", uri);
2868                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2869                                                NULL, NULL, NULL, NULL,
2870                                                bevent->button, bevent->time);
2871                                 return TRUE;
2872                         }
2873                 }
2874         }
2875
2876         return FALSE;
2877 }
2878
2879 gchar *textview_get_visible_uri         (TextView       *textview,
2880                                          ClickableText  *uri)
2881 {
2882         GtkTextBuffer *buffer;
2883         GtkTextIter start, end;
2884
2885         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2886
2887         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2888         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2889
2890         return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2891 }
2892
2893 /*!
2894  *\brief    Check to see if a web URL has been disguised as a different
2895  *          URL (possible with HTML email).
2896  *
2897  *\param    uri The uri to check
2898  *
2899  *\param    textview The TextView the URL is contained in
2900  *
2901  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2902  *          it anyway, otherwise FALSE
2903  */
2904 gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
2905 {
2906         gchar *visible_str;
2907         gboolean retval = TRUE;
2908
2909         if (is_uri_string(uri->uri) == FALSE)
2910                 return TRUE;
2911
2912         visible_str = textview_get_visible_uri(textview, uri);
2913         if (visible_str == NULL)
2914                 return TRUE;
2915
2916         g_strstrip(visible_str);
2917
2918         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2919                 gchar *uri_path;
2920                 gchar *visible_uri_path;
2921
2922                 uri_path = get_uri_path(uri->uri);
2923                 visible_uri_path = get_uri_path(visible_str);
2924                 if (path_cmp(uri_path, visible_uri_path) != 0)
2925                         retval = FALSE;
2926         }
2927
2928         if (retval == FALSE) {
2929                 gchar *msg;
2930                 AlertValue aval;
2931
2932                 msg = g_markup_printf_escaped("%s\n\n"
2933                                                 "<b>%s</b> %s\n\n"
2934                                                 "<b>%s</b> %s\n\n"
2935                                                 "%s",
2936                                                 _("The real URL is different from the displayed URL."),
2937                                                 _("Displayed URL:"), visible_str,
2938                                                 _("Real URL:"), uri->uri,
2939                                                 _("Open it anyway?"));
2940                 aval = alertpanel_full(_("Phishing attempt warning"), msg,
2941                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, ALERTFOCUS_FIRST,
2942                                                          FALSE, NULL, ALERT_WARNING);
2943                 g_free(msg);
2944                 if (aval == G_ALERTALTERNATE)
2945                         retval = TRUE;
2946         }
2947
2948         g_free(visible_str);
2949
2950         return retval;
2951 }
2952
2953 static void textview_uri_list_remove_all(GSList *uri_list)
2954 {
2955         GSList *cur;
2956
2957         for (cur = uri_list; cur != NULL; cur = cur->next) {
2958                 if (cur->data) {
2959                         g_free(((ClickableText *)cur->data)->uri);
2960                         g_free(((ClickableText *)cur->data)->filename);
2961                         if (((ClickableText *)cur->data)->is_quote) {
2962                                 g_free(((ClickableText *)cur->data)->fg_color);
2963                                 g_free(((ClickableText *)cur->data)->data);
2964                                 /* (only free data in quotes uris) */
2965                         }
2966                         g_free(cur->data);
2967                 }
2968         }
2969
2970         g_slist_free(uri_list);
2971 }
2972
2973 static void open_uri_cb (GtkAction *action, TextView *textview)
2974 {
2975         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2976                                            "menu_button");
2977         const gchar *raw_url = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2978                                            "raw_url");
2979
2980         if (uri) {
2981                 if (textview_uri_security_check(textview, uri) == TRUE)
2982                         open_uri(uri->uri,
2983                                  prefs_common_get_uri_cmd());
2984                 g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2985                                   NULL);
2986         }
2987         if (raw_url) {
2988                 open_uri(raw_url, prefs_common_get_uri_cmd());
2989                 g_object_set_data(G_OBJECT(textview->link_popup_menu), "raw_url",
2990                                   NULL);
2991         }
2992 }
2993
2994 static void open_image_cb (GtkAction *action, TextView *textview)
2995 {
2996         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2997                                            "menu_button");
2998
2999         gchar *cmd = NULL;
3000         gchar buf[1024];
3001         const gchar *p;
3002         gchar *filename = NULL, *filepath = NULL;
3003         gchar *tmp_filename = NULL;
3004
3005         if (uri == NULL)
3006                 return;
3007
3008         if (uri->filename == NULL)
3009                 return;
3010
3011         filename = g_strdup(uri->filename);
3012
3013         if (!g_utf8_validate(filename, -1, NULL)) {
3014                 gchar *tmp = conv_filename_to_utf8(filename);
3015                 g_free(filename);
3016                 filename = tmp;
3017         }
3018
3019         subst_for_filename(filename);
3020
3021         filepath = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
3022                                filename, NULL);
3023
3024         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
3025         copy_file(tmp_filename, filepath, FALSE);
3026         g_free(tmp_filename);
3027
3028         cmd = mailcap_get_command_for_type("image/jpeg", filename);
3029         if (cmd == NULL) {
3030                 gboolean remember = FALSE;
3031                 cmd = input_dialog_combo_remember
3032                         (_("Open with"),
3033                          _("Enter the command-line to open file:\n"
3034                            "('%s' will be replaced with file name)"),
3035                          prefs_common.mime_open_cmd,
3036                          prefs_common.mime_open_cmd_history,
3037                          &remember);
3038                 if (cmd && remember) {
3039                         mailcap_update_default("image/jpeg", cmd);
3040                 }
3041         }
3042         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
3043             !strchr(p + 2, '%'))
3044                 g_snprintf(buf, sizeof(buf), cmd, filepath);
3045         else {
3046                 g_warning("Image viewer command-line is invalid: '%s'", cmd);
3047                 g_free(filepath);
3048                 g_free(filename);
3049                 return;
3050         }
3051
3052         execute_command_line(buf, TRUE, NULL);
3053
3054         g_free(filepath);
3055         g_free(filename);
3056         g_free(cmd);
3057
3058         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
3059                           NULL);
3060 }
3061
3062 static void save_file_cb (GtkAction *action, TextView *textview)
3063 {
3064         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
3065                                            "menu_button");
3066         gchar *filename = NULL;
3067         gchar *filepath = NULL;
3068         gchar *filedir = NULL;
3069         gchar *tmp_filename = NULL;
3070         GtkWidget *window;
3071
3072         if (uri == NULL)
3073                 return;
3074
3075         if (uri->filename == NULL)
3076                 return;
3077
3078         filename = g_strdup(uri->filename);
3079
3080         if (!g_utf8_validate(filename, -1, NULL)) {
3081                 gchar *tmp = conv_filename_to_utf8(filename);
3082                 g_free(filename);
3083                 filename = tmp;
3084         }
3085
3086         subst_for_filename(filename);
3087
3088         if (prefs_common.attach_save_dir && *prefs_common.attach_save_dir)
3089                 filepath = g_strconcat(prefs_common.attach_save_dir,
3090                                        G_DIR_SEPARATOR_S, filename, NULL);
3091         else
3092                 filepath = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
3093                                        filename, NULL);
3094
3095         g_free(filename);
3096
3097         /* Pick correct window to set the file dialog "transient for" */
3098         if (textview->messageview->window != NULL)
3099                 window = textview->messageview->window;
3100         else
3101                 window = textview->messageview->mainwin->window;
3102
3103         manage_window_focus_in(window, NULL, NULL);
3104
3105         filename = filesel_select_file_save(_("Save as"), filepath);
3106         if (!filename) {
3107                 g_free(filepath);
3108                 return;
3109         }
3110
3111         if (is_file_exist(filename)) {
3112                 AlertValue aval;
3113                 gchar *res;
3114
3115                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
3116                                       filename);
3117                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
3118                                   GTK_STOCK_OK, NULL, ALERTFOCUS_FIRST);
3119                 g_free(res);
3120                 if (G_ALERTALTERNATE != aval)
3121                         return;
3122         }
3123
3124         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
3125         copy_file(tmp_filename, filename, FALSE);
3126         g_free(tmp_filename);
3127
3128         filedir = g_path_get_dirname(filename);
3129         if (filedir && strcmp(filedir, ".")) {
3130                 g_free(prefs_common.attach_save_dir);
3131                 prefs_common.attach_save_dir = g_filename_to_utf8(filedir, -1, NULL, NULL, NULL);
3132         }
3133
3134         g_free(filedir);
3135         g_free(filepath);
3136
3137         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
3138                           NULL);
3139 }
3140
3141 static void copy_uri_cb (GtkAction *action, TextView *textview)
3142 {
3143         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
3144                                            "menu_button");
3145         const gchar *raw_url =  g_object_get_data(G_OBJECT(textview->link_popup_menu),
3146                                            "raw_url");
3147         if (uri) {
3148                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
3149                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
3150                 g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
3151                           NULL);
3152         }
3153         if (raw_url) {
3154                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), raw_url, -1);
3155                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), raw_url, -1);
3156                 g_object_set_data(G_OBJECT(textview->link_popup_menu), "raw_url",
3157                           NULL);
3158         }
3159 }
3160
3161 static void add_uri_to_addrbook_cb (GtkAction *action, TextView *textview)
3162 {
3163         gchar *fromname, *fromaddress;
3164         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
3165                                            "menu_button");
3166         AvatarRender *avatarr = NULL;
3167         GdkPixbuf *picture = NULL;
3168         gboolean use_picture = FALSE;
3169
3170         if (uri == NULL)
3171                 return;
3172
3173         /* extract url */
3174         fromaddress = g_strdup(uri->uri + 7);
3175
3176         if (textview->messageview->msginfo &&
3177            !strcmp2(fromaddress, textview->messageview->msginfo->from))
3178                 use_picture = TRUE;
3179
3180         fromname = procheader_get_fromname(fromaddress);
3181         extract_address(fromaddress);
3182
3183         if (use_picture) {
3184                 avatarr = avatars_avatarrender_new(textview->messageview->msginfo);
3185                 hooks_invoke(AVATAR_IMAGE_RENDER_HOOKLIST, avatarr);
3186         }
3187
3188         if (avatarr && avatarr->image) {
3189                 picture = gtk_image_get_pixbuf(GTK_IMAGE(avatarr->image));
3190         }
3191         if (avatarr) {
3192                 avatars_avatarrender_free(avatarr);
3193         }
3194
3195 #ifndef USE_ALT_ADDRBOOK
3196         addressbook_add_contact( fromname, fromaddress, NULL, picture);
3197 #else
3198         if (addressadd_selection(fromname, fromaddress, NULL, picture)) {
3199                 debug_print( "addressbook_add_contact - added\n" );
3200         }
3201 #endif
3202
3203         g_free(fromaddress);
3204         g_free(fromname);
3205 }
3206
3207 static void reply_to_uri_cb (GtkAction *action, TextView *textview)
3208 {
3209         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
3210                                            "menu_button");
3211         if (!textview->messageview || !uri)
3212                 return;
3213
3214         compose_reply_to_address (textview->messageview,
3215                                   textview->messageview->msginfo, uri->uri+7);
3216 }
3217
3218 static void mail_to_uri_cb (GtkAction *action, TextView *textview)
3219 {
3220         PrefsAccount *account = NULL;
3221         Compose *compose;
3222         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
3223                                            "menu_button");
3224         if (uri == NULL)
3225                 return;
3226
3227         if (textview->messageview && textview->messageview->msginfo &&
3228             textview->messageview->msginfo->folder) {
3229                 FolderItem   *folder_item;
3230
3231                 folder_item = textview->messageview->msginfo->folder;
3232                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
3233                         account = account_find_from_id(folder_item->prefs->default_account);
3234
3235                 compose = compose_new_with_folderitem(account, folder_item, uri->uri+7);
3236         } else {
3237                 compose = compose_new(account, uri->uri + 7, NULL);
3238         }
3239         compose_check_for_email_account(compose);
3240 }
3241
3242 static void copy_mail_to_uri_cb (GtkAction *action, TextView *textview)
3243 {
3244         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
3245                                            "menu_button");
3246         if (uri == NULL)
3247                 return;
3248
3249         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
3250         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
3251         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
3252                           NULL);
3253 }
3254
3255 void textview_get_selection_offsets(TextView *textview, gint *sel_start, gint *sel_end)
3256 {
3257                 GtkTextView *text = GTK_TEXT_VIEW(textview->text);
3258                 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
3259                 GtkTextIter start, end;
3260                 if (gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) {
3261                         if (sel_start)
3262                                 *sel_start = gtk_text_iter_get_offset(&start);
3263                         if (sel_end)
3264                                 *sel_end = gtk_text_iter_get_offset(&end);
3265                 } else {
3266                         if (sel_start)
3267                                 *sel_start = -1;
3268                         if (sel_end)
3269                                 *sel_end = -1;
3270                 }
3271 }