src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gdk/gdk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <gtk/gtkvbox.h>
  31 #include <gtk/gtkscrolledwindow.h>
  32 #include <gtk/gtksignal.h>
  33 #include <stdio.h>
  34 #include <ctype.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #include <errno.h>
  38 #if HAVE_SYS_WAIT_H
  39 #include <sys/wait.h>
  40 #endif
  41 #if HAVE_LIBCOMPFACE
  42 #  include <compface.h>
  43 #endif
  44
  45 #if HAVE_LIBCOMPFACE
  46 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  47 #endif
  48
  49 #include "main.h"
  50 #include "summaryview.h"
  51 #include "procheader.h"
  52 #include "prefs_common.h"
  53 #include "codeconv.h"
  54 #include "utils.h"
  55 #include "gtkutils.h"
  56 #include "procmime.h"
  57 #include "html.h"
  58 #include "enriched.h"
  59 #include "compose.h"
  60 #include "addressbook.h"
  61 #include "displayheader.h"
  62 #include "account.h"
  63 #include "mimeview.h"
  64 #include "alertpanel.h"
  65 #include "menu.h"
  66 #include "image_viewer.h"
  67 #include "filesel.h"
  68 #include "base64.h"
  69 #include "inputdialog.h"
  70 #include "timing.h"
  71
  72 struct _ClickableText
  73 {
  74         gchar *uri;
  75
  76         gchar *filename;
  77
  78         gpointer data;
  79
  80         guint start;
  81         guint end;
  82
  83         gboolean is_quote;
  84         gint quote_level;
  85         gboolean q_expanded;
  86         gchar *fg_color;
  87 };
  88
  89 gint previousquotelevel = -1;
  90
  91 static GdkColor quote_colors[3] = {
  92         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  93         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  94         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  95 };
  96
  97 static GdkColor quote_bgcolors[3] = {
  98         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  99         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
 100         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
 101 };
 102 static GdkColor signature_color = {
 103         (gulong)0,
 104         (gushort)0x7fff,
 105         (gushort)0x7fff,
 106         (gushort)0x7fff
 107 };
 108
 109 static GdkColor uri_color = {
 110         (gulong)0,
 111         (gushort)0,
 112         (gushort)0,
 113         (gushort)0
 114 };
 115
 116 static GdkColor emphasis_color = {
 117         (gulong)0,
 118         (gushort)0,
 119         (gushort)0,
 120         (gushort)0xcfff
 121 };
 122
 123 static GdkCursor *hand_cursor = NULL;
 124 static GdkCursor *text_cursor = NULL;
 125 static GdkCursor *watch_cursor= NULL;
 126
 127 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 128 {       if (textview->messageview->statusbar)                               \
 129         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 130                            textview->messageview->statusbar_cid, str);      \
 131 }
 132
 133 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 134 {       if (textview->messageview->statusbar)                              \
 135         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 136                           textview->messageview->statusbar_cid);           \
 137 }
 138
 139 static void textview_show_ertf          (TextView       *textview,
 140                                          FILE           *fp,
 141                                          CodeConverter  *conv);
 142 static void textview_add_part           (TextView       *textview,
 143                                          MimeInfo       *mimeinfo);
 144 static void textview_add_parts          (TextView       *textview,
 145                                          MimeInfo       *mimeinfo);
 146 static void textview_write_body         (TextView       *textview,
 147                                          MimeInfo       *mimeinfo);
 148 static void textview_show_html          (TextView       *textview,
 149                                          FILE           *fp,
 150                                          CodeConverter  *conv);
 151
 152 static void textview_write_line         (TextView       *textview,
 153                                          const gchar    *str,
 154                                          CodeConverter  *conv);
 155 static void textview_write_link         (TextView       *textview,
 156                                          const gchar    *str,
 157                                          const gchar    *uri,
 158                                          CodeConverter  *conv);
 159
 160 static GPtrArray *textview_scan_header  (TextView       *textview,
 161                                          FILE           *fp);
 162 static void textview_show_header        (TextView       *textview,
 163                                          GPtrArray      *headers);
 164
 165 static gint textview_key_pressed                (GtkWidget      *widget,
 166                                                  GdkEventKey    *event,
 167                                                  TextView       *textview);
 168 static gboolean textview_motion_notify          (GtkWidget      *widget,
 169                                                  GdkEventMotion *motion,
 170                                                  TextView       *textview);
 171 static gboolean textview_leave_notify           (GtkWidget        *widget,
 172                                                  GdkEventCrossing *event,
 173                                                  TextView         *textview);
 174 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 175                                                  GdkEventVisibility *event,
 176                                                  TextView       *textview);
 177 static void textview_uri_update                 (TextView       *textview,
 178                                                  gint           x,
 179                                                  gint           y);
 180 static gboolean textview_get_uri_range          (TextView       *textview,
 181                                                  GtkTextIter    *iter,
 182                                                  GtkTextTag     *tag,
 183                                                  GtkTextIter    *start_iter,
 184                                                  GtkTextIter    *end_iter);
 185 static ClickableText *textview_get_uri_from_range       (TextView       *textview,
 186                                                  GtkTextIter    *iter,
 187                                                  GtkTextTag     *tag,
 188                                                  GtkTextIter    *start_iter,
 189                                                  GtkTextIter    *end_iter);
 190 static ClickableText *textview_get_uri          (TextView       *textview,
 191                                                  GtkTextIter    *iter,
 192                                                  GtkTextTag     *tag);
 193 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 194                                                  GObject        *obj,
 195                                                  GdkEvent       *event,
 196                                                  GtkTextIter    *iter,
 197                                                  TextView       *textview);
 198
 199 static gboolean textview_uri_security_check     (TextView       *textview,
 200                                                  ClickableText  *uri);
 201 static void textview_uri_list_remove_all        (GSList         *uri_list);
 202
 203 static void textview_toggle_quote               (TextView       *textview,
 204                                                  ClickableText  *uri,
 205                                                  gboolean        expand_only);
 206
 207 static void open_uri_cb                         (TextView       *textview,
 208                                                  guint           action,
 209                                                  void           *data);
 210 static void copy_uri_cb                         (TextView       *textview,
 211                                                  guint           action,
 212                                                  void           *data);
 213 static void add_uri_to_addrbook_cb              (TextView       *textview,
 214                                                  guint           action,
 215                                                  void           *data);
 216 static void mail_to_uri_cb                      (TextView       *textview,
 217                                                  guint           action,
 218                                                  void           *data);
 219 static void copy_mail_to_uri_cb                 (TextView       *textview,
 220                                                  guint           action,
 221                                                  void           *data);
 222 static void save_file_cb                        (TextView       *textview,
 223                                                  guint           action,
 224                                                  void           *data);
 225 static void open_image_cb                       (TextView       *textview,
 226                                                  guint           action,
 227                                                  void           *data);
 228 static void textview_show_icon(TextView *textview, const gchar *stock_id);
 229
 230 static GtkItemFactoryEntry textview_link_popup_entries[] =
 231 {
 232         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 233         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 234 };
 235
 236 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 237 {
 238         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 239         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 240         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 241 };
 242
 243 static GtkItemFactoryEntry textview_file_popup_entries[] =
 244 {
 245         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 246         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 247 };
 248
 249 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 250 {
 251 #ifndef WIDTH
 252 #  define WIDTH 48
 253 #  define HEIGHT 48
 254 #endif
 255         if (textview->image) {
 256                 gint x, y, x1;
 257                 x1 = textview->text->allocation.width - WIDTH - 5;
 258                 gtk_text_view_buffer_to_window_coords(
 259                         GTK_TEXT_VIEW(textview->text),
 260                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 261                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 262                         textview->image, x1, y);
 263         }
 264 }
 265
 266 static void textview_size_allocate_cb   (GtkWidget      *widget,
 267                                          GtkAllocation  *allocation,
 268                                          gpointer        data)
 269 {
 270         scrolled_cb(NULL, (TextView *)data);
 271 }
 272
 273 TextView *textview_create(void)
 274 {
 275         TextView *textview;
 276         GtkWidget *vbox;
 277         GtkWidget *scrolledwin;
 278         GtkWidget *text;
 279         GtkTextBuffer *buffer;
 280         GtkClipboard *clipboard;
 281         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 282         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 283         GtkAdjustment *adj;
 284         gint n_entries;
 285
 286         debug_print("Creating text view...\n");
 287         textview = g_new0(TextView, 1);
 288
 289         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 290         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 291                                        GTK_POLICY_AUTOMATIC,
 292                                        GTK_POLICY_AUTOMATIC);
 293         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 294                                             GTK_SHADOW_IN);
 295         gtk_widget_set_size_request
 296                 (scrolledwin, prefs_common.mainview_width, -1);
 297
 298         /* create GtkSText widgets for single-byte and multi-byte character */
 299         text = gtk_text_view_new();
 300         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 301         gtk_widget_show(text);
 302         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 303         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 304         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 305         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 306         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 307
 308         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 309         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 310         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 311
 312         gtk_widget_ensure_style(text);
 313
 314         gtk_widget_ref(scrolledwin);
 315
 316         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 317
 318         g_signal_connect(G_OBJECT(text), "key-press-event",
 319                          G_CALLBACK(textview_key_pressed), textview);
 320         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 321                          G_CALLBACK(textview_motion_notify), textview);
 322         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 323                          G_CALLBACK(textview_leave_notify), textview);
 324         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 325                          G_CALLBACK(textview_visibility_notify), textview);
 326         adj = gtk_scrolled_window_get_vadjustment(
 327                 GTK_SCROLLED_WINDOW(scrolledwin));
 328         g_signal_connect(G_OBJECT(adj), "value-changed",
 329                          G_CALLBACK(scrolled_cb), textview);
 330         g_signal_connect(G_OBJECT(text), "size_allocate",
 331                          G_CALLBACK(textview_size_allocate_cb),
 332                          textview);
 333
 334
 335         gtk_widget_show(scrolledwin);
 336
 337         vbox = gtk_vbox_new(FALSE, 0);
 338         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 339
 340         gtk_widget_show(vbox);
 341
 342         n_entries = sizeof(textview_link_popup_entries) /
 343                 sizeof(textview_link_popup_entries[0]);
 344         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 345                                       "<UriPopupMenu>", &link_popupfactory,
 346                                       textview);
 347
 348         n_entries = sizeof(textview_mail_popup_entries) /
 349                 sizeof(textview_mail_popup_entries[0]);
 350         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 351                                       "<UriPopupMenu>", &mail_popupfactory,
 352                                       textview);
 353
 354         n_entries = sizeof(textview_file_popup_entries) /
 355                 sizeof(textview_file_popup_entries[0]);
 356         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 357                                       "<FilePopupMenu>", &file_popupfactory,
 358                                       textview);
 359
 360         textview->vbox               = vbox;
 361         textview->scrolledwin        = scrolledwin;
 362         textview->text               = text;
 363         textview->uri_list           = NULL;
 364         textview->body_pos           = 0;
 365         textview->show_all_headers   = FALSE;
 366         textview->last_buttonpress   = GDK_NOTHING;
 367         textview->link_popup_menu    = link_popupmenu;
 368         textview->link_popup_factory = link_popupfactory;
 369         textview->mail_popup_menu    = mail_popupmenu;
 370         textview->mail_popup_factory = mail_popupfactory;
 371         textview->file_popup_menu    = file_popupmenu;
 372         textview->file_popup_factory = file_popupfactory;
 373         textview->image              = NULL;
 374         return textview;
 375 }
 376
 377 static void textview_create_tags(GtkTextView *text, TextView *textview)
 378 {
 379         GtkTextBuffer *buffer;
 380         GtkTextTag *tag, *qtag;
 381         static PangoFontDescription *font_desc, *bold_font_desc;
 382
 383         if (!font_desc)
 384                 font_desc = pango_font_description_from_string
 385                         (NORMAL_FONT);
 386
 387         if (!bold_font_desc) {
 388                 bold_font_desc = pango_font_description_from_string
 389                         (NORMAL_FONT);
 390                 pango_font_description_set_weight
 391                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 392         }
 393
 394         buffer = gtk_text_view_get_buffer(text);
 395
 396         gtk_text_buffer_create_tag(buffer, "header",
 397                                    "pixels-above-lines", 0,
 398                                    "pixels-above-lines-set", TRUE,
 399                                    "pixels-below-lines", 0,
 400                                    "pixels-below-lines-set", TRUE,
 401                                    "font-desc", font_desc,
 402                                    "left-margin", 3,
 403                                    "left-margin-set", TRUE,
 404                                    NULL);
 405         gtk_text_buffer_create_tag(buffer, "header_title",
 406                                    "font-desc", bold_font_desc,
 407                                    NULL);
 408         tag = gtk_text_buffer_create_tag(buffer, "hlink",
 409                                    "pixels-above-lines", 0,
 410                                    "pixels-above-lines-set", TRUE,
 411                                    "pixels-below-lines", 0,
 412                                    "pixels-below-lines-set", TRUE,
 413                                    "font-desc", font_desc,
 414                                    "left-margin", 3,
 415                                    "left-margin-set", TRUE,
 416                                    "foreground-gdk", &uri_color,
 417                                    NULL);
 418         g_signal_connect(G_OBJECT(tag), "event",
 419                          G_CALLBACK(textview_uri_button_pressed), textview);
 420         if (prefs_common.enable_bgcolor) {
 421                 gtk_text_buffer_create_tag(buffer, "quote0",
 422                                 "foreground-gdk", &quote_colors[0],
 423                                 "paragraph-background-gdk", &quote_bgcolors[0],
 424                                 NULL);
 425                 gtk_text_buffer_create_tag(buffer, "quote1",
 426                                 "foreground-gdk", &quote_colors[1],
 427                                 "paragraph-background-gdk", &quote_bgcolors[1],
 428                                 NULL);
 429                 gtk_text_buffer_create_tag(buffer, "quote2",
 430                                 "foreground-gdk", &quote_colors[2],
 431                                 "paragraph-background-gdk", &quote_bgcolors[2],
 432                                 NULL);
 433         } else {
 434                 gtk_text_buffer_create_tag(buffer, "quote0",
 435                                 "foreground-gdk", &quote_colors[0],
 436                                 NULL);
 437                 gtk_text_buffer_create_tag(buffer, "quote1",
 438                                 "foreground-gdk", &quote_colors[1],
 439                                 NULL);
 440                 gtk_text_buffer_create_tag(buffer, "quote2",
 441                                 "foreground-gdk", &quote_colors[2],
 442                                 NULL);
 443         }
 444         gtk_text_buffer_create_tag(buffer, "emphasis",
 445                         "foreground-gdk", &emphasis_color,
 446                         NULL);
 447         gtk_text_buffer_create_tag(buffer, "signature",
 448                         "foreground-gdk", &signature_color,
 449                         NULL);
 450         tag = gtk_text_buffer_create_tag(buffer, "link",
 451                         "foreground-gdk", &uri_color,
 452                         NULL);
 453         qtag = gtk_text_buffer_create_tag(buffer, "qlink",
 454                         NULL);
 455         gtk_text_buffer_create_tag(buffer, "link-hover",
 456                         "underline", PANGO_UNDERLINE_SINGLE,
 457                         NULL);
 458         g_signal_connect(G_OBJECT(qtag), "event",
 459                          G_CALLBACK(textview_uri_button_pressed), textview);
 460         g_signal_connect(G_OBJECT(tag), "event",
 461                          G_CALLBACK(textview_uri_button_pressed), textview);
 462  }
 463
 464 void textview_init(TextView *textview)
 465 {
 466         if (!hand_cursor)
 467                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 468         if (!text_cursor)
 469                 text_cursor = gdk_cursor_new(GDK_XTERM);
 470         if (!watch_cursor)
 471                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 472
 473         textview_reflect_prefs(textview);
 474         textview_set_all_headers(textview, FALSE);
 475         textview_set_font(textview, NULL);
 476         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 477 }
 478
 479 #if GTK_CHECK_VERSION(2, 8, 0)
 480  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 481         tag = gtk_text_tag_table_lookup(tags, tagname); \
 482         if (tag) \
 483                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 484  }
 485 #else
 486  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 487         tag = gtk_text_tag_table_lookup(tags, tagname); \
 488         if (tag) \
 489                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, NULL); \
 490  }
 491 #endif
 492
 493 static void textview_update_message_colors(TextView *textview)
 494 {
 495         GdkColor black = {0, 0, 0, 0};
 496         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 497         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 498
 499         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 500         GtkTextTag *tag = NULL;
 501
 502         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 503         quote_colors[0] = quote_colors[1] = quote_colors[2] =
 504                 uri_color = emphasis_color = signature_color = black;
 505
 506         if (prefs_common.enable_color) {
 507                 /* grab the quote colors, converting from an int to a GdkColor */
 508                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 509                                                &quote_colors[0]);
 510                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 511                                                &quote_colors[1]);
 512                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 513                                                &quote_colors[2]);
 514                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 515                                                &uri_color);
 516                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 517                                                &signature_color);
 518                 emphasis_color = colored_emphasis;
 519         }
 520         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 521                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_bgcol,
 522                                                    &quote_bgcolors[0]);
 523                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_bgcol,
 524                                                    &quote_bgcolors[1]);
 525                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_bgcol,
 526                                                    &quote_bgcolors[2]);
 527                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 528                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 529                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 530         } else {
 531                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 532                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 533                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 534         }
 535
 536         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 537         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 538         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 539         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 540 }
 541 #undef CHANGE_TAG_COLOR
 542
 543 void textview_reflect_prefs(TextView *textview)
 544 {
 545         textview_set_font(textview, NULL);
 546         textview_update_message_colors(textview);
 547         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 548                                          prefs_common.textview_cursor_visible);
 549 }
 550
 551 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 552                            const gchar *file)
 553 {
 554         textview->loading = TRUE;
 555         textview->stop_loading = FALSE;
 556
 557         textview_clear(textview);
 558
 559         textview_add_parts(textview, mimeinfo);
 560
 561         textview_set_position(textview, 0);
 562
 563         textview->loading = FALSE;
 564         textview->stop_loading = FALSE;
 565 }
 566
 567 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 568 {
 569         START_TIMING("");
 570         g_return_if_fail(mimeinfo != NULL);
 571         g_return_if_fail(fp != NULL);
 572
 573         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 574             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 575                 textview->loading = TRUE;
 576                 textview->stop_loading = FALSE;
 577
 578                 textview_clear(textview);
 579                 textview_add_parts(textview, mimeinfo);
 580
 581                 textview->loading = FALSE;
 582                 textview->stop_loading = FALSE;
 583                 END_TIMING();
 584                 return;
 585         }
 586         textview->loading = TRUE;
 587         textview->stop_loading = FALSE;
 588
 589         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 590                 perror("fseek");
 591
 592         textview_clear(textview);
 593
 594         if (mimeinfo->type == MIMETYPE_MULTIPART)
 595                 textview_add_parts(textview, mimeinfo);
 596         else
 597                 textview_write_body(textview, mimeinfo);
 598
 599         textview->loading = FALSE;
 600         textview->stop_loading = FALSE;
 601         END_TIMING();
 602 }
 603
 604 #define TEXT_INSERT(str) \
 605         gtk_text_buffer_insert_with_tags_by_name \
 606                                 (buffer, &iter, str, -1,\
 607                                  "header", NULL)
 608
 609 #define TEXT_INSERT_LINK(str, fname, udata) {                           \
 610         ClickableText *uri;                                                     \
 611         uri = g_new0(ClickableText, 1);                                 \
 612         uri->uri = g_strdup("");                                        \
 613         uri->start = gtk_text_iter_get_offset(&iter);                   \
 614         gtk_text_buffer_insert_with_tags_by_name                        \
 615                                 (buffer, &iter, str, -1,                \
 616                                  "link", "header_title", "header",      \
 617                                  NULL);                                 \
 618         uri->end = gtk_text_iter_get_offset(&iter);                     \
 619         uri->filename = fname?g_strdup(fname):NULL;                     \
 620         uri->data = udata;                                              \
 621         textview->uri_list =                                            \
 622                 g_slist_append(textview->uri_list, uri);                \
 623 }
 624
 625 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 626 {
 627         GtkTextView *text;
 628         GtkTextBuffer *buffer;
 629         GtkTextIter iter, start_iter;
 630         gchar buf[BUFFSIZE];
 631         GPtrArray *headers = NULL;
 632         const gchar *name;
 633         gchar *content_type;
 634         gint charcount;
 635         START_TIMING("");
 636
 637         g_return_if_fail(mimeinfo != NULL);
 638         text = GTK_TEXT_VIEW(textview->text);
 639         buffer = gtk_text_view_get_buffer(text);
 640         charcount = gtk_text_buffer_get_char_count(buffer);
 641         gtk_text_buffer_get_end_iter(buffer, &iter);
 642
 643         if (textview->stop_loading) {
 644                 return;
 645         }
 646         if (mimeinfo->type == MIMETYPE_MULTIPART) {
 647                 END_TIMING();
 648                 return;
 649         }
 650
 651         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 652                 FILE *fp;
 653
 654                 fp = g_fopen(mimeinfo->data.filename, "rb");
 655                 fseek(fp, mimeinfo->offset, SEEK_SET);
 656                 headers = textview_scan_header(textview, fp);
 657                 if (headers) {
 658                         if (charcount > 0)
 659                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 660                         textview_show_header(textview, headers);
 661                         procheader_header_array_destroy(headers);
 662                 }
 663                 fclose(fp);
 664                 END_TIMING();
 665                 return;
 666         }
 667
 668         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 669         content_type = procmime_get_content_type_str(mimeinfo->type,
 670                                                      mimeinfo->subtype);
 671         if (name == NULL)
 672                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 673         if (name != NULL)
 674                 g_snprintf(buf, sizeof(buf), _("[%s  %s (%d bytes)]"),
 675                            name, content_type, mimeinfo->length);
 676         else
 677                 g_snprintf(buf, sizeof(buf), _("[%s (%d bytes)]"),
 678                            content_type, mimeinfo->length);
 679
 680         g_free(content_type);
 681
 682         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 683         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 684             mimeinfo->type != MIMETYPE_TEXT)) {
 685                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 686                 TEXT_INSERT_LINK(buf, "sc://select_attachment", mimeinfo);
 687                 gtk_text_buffer_insert(buffer, &iter, " \n", -1);
 688                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 689                     prefs_common.inline_img ) {
 690                         GdkPixbuf *pixbuf;
 691                         GError *error = NULL;
 692                         gchar *filename;
 693                         ClickableText *uri;
 694                         gchar *uri_str;
 695                         START_TIMING("inserting image");
 696
 697                         filename = procmime_get_tmp_file_name(mimeinfo);
 698
 699                         if (procmime_get_part(filename, mimeinfo) < 0) {
 700                                 g_warning("Can't get the image file.");
 701                                 g_free(filename);
 702                                 END_TIMING();
 703                                 return;
 704                         }
 705
 706                         if (!prefs_common.resize_img) {
 707                                 pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 708                         } else {
 709                                 gint w, h;
 710                                 gdk_pixbuf_get_file_info(filename, &w, &h);
 711                                 if (w > textview->scrolledwin->allocation.width - 100)
 712                                         pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
 713                                                 textview->scrolledwin->allocation.width - 100,
 714                                                 -1, TRUE, &error);
 715                                 else
 716                                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 717                         }
 718                         if (error != NULL) {
 719                                 g_warning("%s\n", error->message);
 720                                 g_error_free(error);
 721                         }
 722                         if (!pixbuf) {
 723                                 g_warning("Can't load the image.");
 724                                 g_free(filename);
 725                                 END_TIMING();
 726                                 return;
 727                         }
 728
 729                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 730                         if (uri_str) {
 731                                 uri = g_new0(ClickableText, 1);
 732                                 uri->uri = uri_str;
 733                                 uri->start = gtk_text_iter_get_offset(&iter);
 734
 735                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 736
 737                                 uri->end = uri->start + 1;
 738                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 739                                 textview->uri_list =
 740                                         g_slist_append(textview->uri_list, uri);
 741
 742                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 743                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 744                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 745                                                 &start_iter, &iter);
 746                         } else {
 747                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 748                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 749                         }
 750
 751                         g_object_unref(pixbuf);
 752                         g_free(filename);
 753                         END_TIMING();
 754                         GTK_EVENTS_FLUSH();
 755                 }
 756         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 757                 if (prefs_common.display_header && (charcount > 0))
 758                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 759
 760                 textview_write_body(textview, mimeinfo);
 761         }
 762         END_TIMING();
 763 }
 764
 765 static void recursive_add_parts(TextView *textview, GNode *node)
 766 {
 767         GNode * iter;
 768         MimeInfo *mimeinfo;
 769         START_TIMING("");
 770
 771         mimeinfo = (MimeInfo *) node->data;
 772
 773         textview_add_part(textview, mimeinfo);
 774
 775         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 776             (mimeinfo->type != MIMETYPE_MESSAGE)) {
 777                 END_TIMING();
 778                 return;
 779         }
 780         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 781                 GNode * prefered_body;
 782                 int prefered_score;
 783
 784                 /*
 785                   text/plain : score 3
 786                   text/ *    : score 2
 787                   other      : score 1
 788                 */
 789                 prefered_body = NULL;
 790                 prefered_score = 0;
 791
 792                 for (iter = g_node_first_child(node) ; iter != NULL ;
 793                      iter = g_node_next_sibling(iter)) {
 794                         int score;
 795                         MimeInfo * submime;
 796
 797                         score = 1;
 798                         submime = (MimeInfo *) iter->data;
 799                         if (submime->type == MIMETYPE_TEXT)
 800                                 score = 2;
 801
 802                         if (submime->subtype != NULL) {
 803                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 804                                         score = 3;
 805                         }
 806
 807                         if (score > prefered_score) {
 808                                 prefered_score = score;
 809                                 prefered_body = iter;
 810                         }
 811                 }
 812
 813                 if (prefered_body != NULL) {
 814                         recursive_add_parts(textview, prefered_body);
 815                 }
 816         }
 817         else {
 818                 for (iter = g_node_first_child(node) ; iter != NULL ;
 819                      iter = g_node_next_sibling(iter)) {
 820                         recursive_add_parts(textview, iter);
 821                 }
 822         }
 823         END_TIMING();
 824 }
 825
 826 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 827 {
 828         g_return_if_fail(mimeinfo != NULL);
 829
 830         recursive_add_parts(textview, mimeinfo->node);
 831 }
 832
 833 void textview_show_error(TextView *textview)
 834 {
 835         GtkTextView *text;
 836         GtkTextBuffer *buffer;
 837         GtkTextIter iter;
 838
 839         textview_set_font(textview, NULL);
 840         textview_clear(textview);
 841
 842         text = GTK_TEXT_VIEW(textview->text);
 843         buffer = gtk_text_view_get_buffer(text);
 844         gtk_text_buffer_get_start_iter(buffer, &iter);
 845
 846         TEXT_INSERT(_("\n"
 847                       "  This message can't be displayed.\n"
 848                       "  This is probably due to a network error.\n"
 849                       "\n"
 850                       "  Use "));
 851         TEXT_INSERT_LINK(_("'View Log'"), "sc://view_log", NULL);
 852         TEXT_INSERT(_(" in the Tools menu for more information."));
 853         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 854
 855 }
 856
 857 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 858 {
 859         GtkTextView *text;
 860         GtkTextBuffer *buffer;
 861         GtkTextIter iter;
 862
 863         if (!partinfo) return;
 864
 865         textview_set_font(textview, NULL);
 866         textview_clear(textview);
 867
 868         text = GTK_TEXT_VIEW(textview->text);
 869         buffer = gtk_text_view_get_buffer(text);
 870         gtk_text_buffer_get_start_iter(buffer, &iter);
 871
 872         TEXT_INSERT("\n");
 873         TEXT_INSERT(_("  The following can be performed on this part by\n"));
 874         TEXT_INSERT(_("  right-clicking the icon or list item:\n"));
 875
 876         TEXT_INSERT(_("     - To save, select "));
 877         TEXT_INSERT_LINK(_("'Save as...'"), "sc://save_as", NULL);
 878         TEXT_INSERT(_(" (Shortcut key: 'y')\n"));
 879         TEXT_INSERT(_("     - To display as text, select "));
 880         TEXT_INSERT_LINK(_("'Display as text'"), "sc://display_as_text", NULL);
 881         TEXT_INSERT(_(" (Shortcut key: 't')\n"));
 882         TEXT_INSERT(_("     - To open with an external program, select "));
 883         TEXT_INSERT_LINK(_("'Open'"), "sc://open", NULL);
 884         TEXT_INSERT(_(" (Shortcut key: 'l')\n"));
 885         TEXT_INSERT(_("       (alternately double-click, or click the middle "));
 886         TEXT_INSERT(_("mouse button)\n"));
 887         TEXT_INSERT(_("     - Or use "));
 888         TEXT_INSERT_LINK(_("'Open with...'"), "sc://open_with", NULL);
 889         TEXT_INSERT(_(" (Shortcut key: 'o')\n"));
 890         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 891 }
 892
 893 #undef TEXT_INSERT
 894 #undef TEXT_INSERT_LINK
 895
 896 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 897 {
 898         FILE *tmpfp;
 899         gchar buf[BUFFSIZE];
 900         CodeConverter *conv;
 901         const gchar *charset, *p, *cmd;
 902         GSList *cur;
 903         int lines = 0;
 904
 905         if (textview->messageview->forced_charset)
 906                 charset = textview->messageview->forced_charset;
 907         else
 908                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 909
 910         textview_set_font(textview, charset);
 911
 912         conv = conv_code_converter_new(charset);
 913
 914         procmime_force_encoding(textview->messageview->forced_encoding);
 915
 916         textview->is_in_signature = FALSE;
 917
 918         procmime_decode_content(mimeinfo);
 919
 920         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 921             prefs_common.render_html) {
 922                 gchar *filename;
 923
 924                 filename = procmime_get_tmp_file_name(mimeinfo);
 925                 if (procmime_get_part(filename, mimeinfo) == 0) {
 926                         tmpfp = g_fopen(filename, "rb");
 927                         textview_show_html(textview, tmpfp, conv);
 928                         fclose(tmpfp);
 929                         g_unlink(filename);
 930                 }
 931                 g_free(filename);
 932         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 933                 gchar *filename;
 934
 935                 filename = procmime_get_tmp_file_name(mimeinfo);
 936                 if (procmime_get_part(filename, mimeinfo) == 0) {
 937                         tmpfp = g_fopen(filename, "rb");
 938                         textview_show_ertf(textview, tmpfp, conv);
 939                         fclose(tmpfp);
 940                         g_unlink(filename);
 941                 }
 942                 g_free(filename);
 943 #ifndef G_OS_WIN32
 944         } else if ( g_ascii_strcasecmp(mimeinfo->subtype, "plain") &&
 945                    (cmd = prefs_common.mime_textviewer) && *cmd &&
 946                    (p = strchr(cmd, '%')) && *(p + 1) == 's') {
 947                 int pid, pfd[2];
 948                 const gchar *fname;
 949
 950                 fname  = procmime_get_tmp_file_name(mimeinfo);
 951                 if (procmime_get_part(fname, mimeinfo)) goto textview_default;
 952
 953                 g_snprintf(buf, sizeof(buf), cmd, fname);
 954                 debug_print("Viewing text content of type: %s (length: %d) "
 955                         "using %s\n", mimeinfo->subtype, mimeinfo->length, buf);
 956
 957                 if (pipe(pfd) < 0) {
 958                         g_snprintf(buf, sizeof(buf),
 959                                 "pipe failed for textview\n\n%s\n", strerror(errno));
 960                         textview_write_line(textview, buf, conv);
 961                         goto textview_default;
 962                 }
 963                 pid = fork();
 964                 if (pid < 0) {
 965                         g_snprintf(buf, sizeof(buf),
 966                                 "fork failed for textview\n\n%s\n", strerror(errno));
 967                         textview_write_line(textview, buf, conv);
 968                         close(pfd[0]);
 969                         close(pfd[1]);
 970                         goto textview_default;
 971                 }
 972                 if (pid == 0) { /* child */
 973                         int rc;
 974                         gchar **argv;
 975                         argv = strsplit_with_quote(buf, " ", 0);
 976                         close(1);
 977                         close(pfd[0]);
 978                         dup(pfd[1]);
 979                         rc = execvp(argv[0], argv);
 980                         close(pfd[1]);
 981                         printf (_("The command to view attachment "
 982                                 "as text failed:\n"
 983                                 "    %s\n"
 984                                 "Exit code %d\n"), buf, rc);
 985                         exit(255);
 986                 }
 987                 close(pfd[1]);
 988                 tmpfp = fdopen(pfd[0], "rb");
 989                 while (fgets(buf, sizeof(buf), tmpfp)) {
 990                         textview_write_line(textview, buf, conv);
 991
 992                         lines++;
 993                         if (lines % 500 == 0)
 994                                 GTK_EVENTS_FLUSH();
 995                         if (textview->stop_loading) {
 996                                 fclose(tmpfp);
 997                                 waitpid(pid, pfd, 0);
 998                                 unlink(fname);
 999                                 return;
1000                         }
1001                 }
1002
1003                 fclose(tmpfp);
1004                 waitpid(pid, pfd, 0);
1005                 unlink(fname);
1006 #endif
1007         } else {
1008 textview_default:
1009                 lines = 0;
1010                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
1011                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
1012                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
1013                 while ((ftell(tmpfp) < mimeinfo->offset + mimeinfo->length) &&
1014                        (fgets(buf, sizeof(buf), tmpfp) != NULL)) {
1015                         textview_write_line(textview, buf, conv);
1016                         lines++;
1017                         if (lines % 500 == 0)
1018                                 GTK_EVENTS_FLUSH();
1019                         if (textview->stop_loading) {
1020                                 fclose(tmpfp);
1021                                 return;
1022                         }
1023                 }
1024                 fclose(tmpfp);
1025         }
1026
1027         conv_code_converter_destroy(conv);
1028         procmime_force_encoding(0);
1029
1030         lines = 0;
1031         for (cur = textview->uri_list; cur; cur = cur->next) {
1032                 ClickableText *uri = (ClickableText *)cur->data;
1033                 if (!uri->is_quote)
1034                         continue;
1035                 if (!prefs_common.hide_quotes ||
1036                     uri->quote_level+1 < prefs_common.hide_quotes) {
1037                         textview_toggle_quote(textview, uri, TRUE);
1038                         lines++;
1039                         if (lines % 500 == 0)
1040                                 GTK_EVENTS_FLUSH();
1041                         if (textview->stop_loading) {
1042                                 return;
1043                         }
1044                 }
1045         }
1046 }
1047
1048 static void textview_show_html(TextView *textview, FILE *fp,
1049                                CodeConverter *conv)
1050 {
1051         SC_HTMLParser *parser;
1052         gchar *str;
1053         gint lines = 0;
1054
1055         parser = sc_html_parser_new(fp, conv);
1056         g_return_if_fail(parser != NULL);
1057
1058         while ((str = sc_html_parse(parser)) != NULL) {
1059                 if (parser->state == SC_HTML_HREF) {
1060                         /* first time : get and copy the URL */
1061                         if (parser->href == NULL) {
1062                                 /* ALF - the sylpheed html parser returns an empty string,
1063                                  * if still inside an <a>, but already parsed past HREF */
1064                                 str = strtok(str, " ");
1065                                 if (str) {
1066                                         while (str && *str && g_ascii_isspace(*str))
1067                                                 str++;
1068                                         parser->href = g_strdup(str);
1069                                         /* the URL may (or not) be followed by the
1070                                          * referenced text */
1071                                         str = strtok(NULL, "");
1072                                 }
1073                         }
1074                         if (str != NULL)
1075                                 textview_write_link(textview, str, parser->href, NULL);
1076                 } else
1077                         textview_write_line(textview, str, NULL);
1078                 lines++;
1079                 if (lines % 500 == 0)
1080                         GTK_EVENTS_FLUSH();
1081                 if (textview->stop_loading) {
1082                         return;
1083                 }
1084         }
1085         textview_write_line(textview, "\n", NULL);
1086         sc_html_parser_destroy(parser);
1087 }
1088
1089 static void textview_show_ertf(TextView *textview, FILE *fp,
1090                                CodeConverter *conv)
1091 {
1092         ERTFParser *parser;
1093         gchar *str;
1094         gint lines = 0;
1095
1096         parser = ertf_parser_new(fp, conv);
1097         g_return_if_fail(parser != NULL);
1098
1099         while ((str = ertf_parse(parser)) != NULL) {
1100                 textview_write_line(textview, str, NULL);
1101                 lines++;
1102                 if (lines % 500 == 0)
1103                         GTK_EVENTS_FLUSH();
1104                 if (textview->stop_loading) {
1105                         return;
1106                 }
1107         }
1108
1109         ertf_parser_destroy(parser);
1110 }
1111
1112 #define ADD_TXT_POS(bp_, ep_, pti_) \
1113         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1114                 last = last->next; \
1115                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1116                 last->next = NULL; \
1117         } else { \
1118                 g_warning("alloc error scanning URIs\n"); \
1119                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
1120                                                          linebuf, -1, \
1121                                                          fg_tag, NULL); \
1122                 return; \
1123         }
1124
1125 #define ADD_TXT_POS_LATER(bp_, ep_, pti_) \
1126         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1127                 last = last->next; \
1128                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1129                 last->next = NULL; \
1130         } else { \
1131                 g_warning("alloc error scanning URIs\n"); \
1132         }
1133
1134 /* textview_make_clickable_parts() - colorizes clickable parts */
1135 static void textview_make_clickable_parts(TextView *textview,
1136                                           const gchar *fg_tag,
1137                                           const gchar *uri_tag,
1138                                           const gchar *linebuf,
1139                                           gboolean hdr)
1140 {
1141         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1142         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1143         GtkTextIter iter;
1144         gchar *mybuf = g_strdup(linebuf);
1145
1146         /* parse table - in order of priority */
1147         struct table {
1148                 const gchar *needle; /* token */
1149
1150                 /* token search function */
1151                 gchar    *(*search)     (const gchar *haystack,
1152                                          const gchar *needle);
1153                 /* part parsing function */
1154                 gboolean  (*parse)      (const gchar *start,
1155                                          const gchar *scanpos,
1156                                          const gchar **bp_,
1157                                          const gchar **ep_,
1158                                          gboolean hdr);
1159                 /* part to URI function */
1160                 gchar    *(*build_uri)  (const gchar *bp,
1161                                          const gchar *ep);
1162         };
1163
1164         static struct table parser[] = {
1165                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1166                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1167                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1168                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1169                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1170                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1171                 {"@",        strcasestr, get_email_part, make_email_string}
1172         };
1173         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1174
1175         gint  n;
1176         const gchar *walk, *bp, *ep;
1177
1178         struct txtpos {
1179                 const gchar     *bp, *ep;       /* text position */
1180                 gint             pti;           /* index in parse table */
1181                 struct txtpos   *next;          /* next */
1182         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1183
1184         if (!g_utf8_validate(linebuf, -1, NULL)) {
1185                 g_free(mybuf);
1186                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1187                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1188         }
1189
1190         gtk_text_buffer_get_end_iter(buffer, &iter);
1191
1192         /* parse for clickable parts, and build a list of begin and end positions  */
1193         for (walk = mybuf, n = 0;;) {
1194                 gint last_index = PARSE_ELEMS;
1195                 gchar *scanpos = NULL;
1196
1197                 /* FIXME: this looks phony. scanning for anything in the parse table */
1198                 for (n = 0; n < PARSE_ELEMS; n++) {
1199                         gchar *tmp;
1200
1201                         tmp = parser[n].search(walk, parser[n].needle);
1202                         if (tmp) {
1203                                 if (scanpos == NULL || tmp < scanpos) {
1204                                         scanpos = tmp;
1205                                         last_index = n;
1206                                 }
1207                         }
1208                 }
1209
1210                 if (scanpos) {
1211                         /* check if URI can be parsed */
1212                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1213                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1214                                         ADD_TXT_POS(bp, ep, last_index);
1215                                         walk = ep;
1216                         } else
1217                                 walk = scanpos +
1218                                         strlen(parser[last_index].needle);
1219                 } else
1220                         break;
1221         }
1222
1223         /* colorize this line */
1224         if (head.next) {
1225                 const gchar *normal_text = mybuf;
1226
1227                 /* insert URIs */
1228                 for (last = head.next; last != NULL;
1229                      normal_text = last->ep, last = last->next) {
1230                         ClickableText *uri;
1231                         uri = g_new0(ClickableText, 1);
1232                         if (last->bp - normal_text > 0)
1233                                 gtk_text_buffer_insert_with_tags_by_name
1234                                         (buffer, &iter,
1235                                          normal_text,
1236                                          last->bp - normal_text,
1237                                          fg_tag, NULL);
1238                         uri->uri = parser[last->pti].build_uri(last->bp,
1239                                                                last->ep);
1240                         uri->start = gtk_text_iter_get_offset(&iter);
1241                         gtk_text_buffer_insert_with_tags_by_name
1242                                 (buffer, &iter, last->bp, last->ep - last->bp,
1243                                  uri_tag, fg_tag, NULL);
1244                         uri->end = gtk_text_iter_get_offset(&iter);
1245                         uri->filename = NULL;
1246                         textview->uri_list =
1247                                 g_slist_append(textview->uri_list, uri);
1248                 }
1249
1250                 if (*normal_text)
1251                         gtk_text_buffer_insert_with_tags_by_name
1252                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1253         } else {
1254                 gtk_text_buffer_insert_with_tags_by_name
1255                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1256         }
1257         g_free(mybuf);
1258 }
1259
1260 /* textview_make_clickable_parts() - colorizes clickable parts */
1261 static void textview_make_clickable_parts_later(TextView *textview,
1262                                           gint start, gint end)
1263 {
1264         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1265         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1266         GtkTextIter start_iter, end_iter;
1267         gchar *mybuf;
1268         gint offset = 0;
1269         /* parse table - in order of priority */
1270         struct table {
1271                 const gchar *needle; /* token */
1272
1273                 /* token search function */
1274                 gchar    *(*search)     (const gchar *haystack,
1275                                          const gchar *needle);
1276                 /* part parsing function */
1277                 gboolean  (*parse)      (const gchar *start,
1278                                          const gchar *scanpos,
1279                                          const gchar **bp_,
1280                                          const gchar **ep_,
1281                                          gboolean hdr);
1282                 /* part to URI function */
1283                 gchar    *(*build_uri)  (const gchar *bp,
1284                                          const gchar *ep);
1285         };
1286
1287         static struct table parser[] = {
1288                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1289                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1290                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1291                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1292                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1293                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1294                 {"@",        strcasestr, get_email_part, make_email_string}
1295         };
1296         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1297
1298         gint  n;
1299         const gchar *walk, *bp, *ep;
1300
1301         struct txtpos {
1302                 const gchar     *bp, *ep;       /* text position */
1303                 gint             pti;           /* index in parse table */
1304                 struct txtpos   *next;          /* next */
1305         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1306
1307         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start);
1308         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end);
1309         mybuf = gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
1310         offset = gtk_text_iter_get_offset(&start_iter);
1311
1312         /* parse for clickable parts, and build a list of begin and end positions  */
1313         for (walk = mybuf, n = 0;;) {
1314                 gint last_index = PARSE_ELEMS;
1315                 gchar *scanpos = NULL;
1316
1317                 /* FIXME: this looks phony. scanning for anything in the parse table */
1318                 for (n = 0; n < PARSE_ELEMS; n++) {
1319                         gchar *tmp;
1320
1321                         tmp = parser[n].search(walk, parser[n].needle);
1322                         if (tmp) {
1323                                 if (scanpos == NULL || tmp < scanpos) {
1324                                         scanpos = tmp;
1325                                         last_index = n;
1326                                 }
1327                         }
1328                 }
1329
1330                 if (scanpos) {
1331                         /* check if URI can be parsed */
1332                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, FALSE)
1333                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1334                                         ADD_TXT_POS_LATER(bp, ep, last_index);
1335                                         walk = ep;
1336                         } else
1337                                 walk = scanpos +
1338                                         strlen(parser[last_index].needle);
1339                 } else
1340                         break;
1341         }
1342
1343         /* colorize this line */
1344         if (head.next) {
1345                 /* insert URIs */
1346                 for (last = head.next; last != NULL; last = last->next) {
1347                         ClickableText *uri;
1348                         gint start_offset, end_offset;
1349                         gchar *tmp_str;
1350                         gchar old_char;
1351                         uri = g_new0(ClickableText, 1);
1352                         uri->uri = parser[last->pti].build_uri(last->bp,
1353                                                                last->ep);
1354
1355                         tmp_str = mybuf;
1356                         old_char = tmp_str[last->ep - mybuf];
1357                         tmp_str[last->ep - mybuf] = '\0';
1358                         end_offset = g_utf8_strlen(tmp_str, -1);
1359                         tmp_str[last->ep - mybuf] = old_char;
1360
1361                         old_char = tmp_str[last->bp - mybuf];
1362                         tmp_str[last->bp - mybuf] = '\0';
1363                         start_offset = g_utf8_strlen(tmp_str, -1);
1364                         tmp_str[last->bp - mybuf] = old_char;
1365
1366                         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start_offset + offset);
1367                         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end_offset + offset);
1368
1369                         uri->start = gtk_text_iter_get_offset(&start_iter);
1370
1371                         gtk_text_buffer_apply_tag_by_name(buffer, "link", &start_iter, &end_iter);
1372
1373                         uri->end = gtk_text_iter_get_offset(&end_iter);
1374                         uri->filename = NULL;
1375                         textview->uri_list =
1376                                 g_slist_append(textview->uri_list, uri);
1377                 }
1378         }
1379
1380         g_free(mybuf);
1381 }
1382
1383 #undef ADD_TXT_POS
1384
1385 static void textview_write_line(TextView *textview, const gchar *str,
1386                                 CodeConverter *conv)
1387 {
1388         GtkTextView *text;
1389         GtkTextBuffer *buffer;
1390         GtkTextIter iter;
1391         gchar buf[BUFFSIZE];
1392         gchar *fg_color;
1393         gint quotelevel = -1, real_quotelevel = -1;
1394         gchar quote_tag_str[10];
1395
1396         text = GTK_TEXT_VIEW(textview->text);
1397         buffer = gtk_text_view_get_buffer(text);
1398         gtk_text_buffer_get_end_iter(buffer, &iter);
1399
1400         if (!conv)
1401                 strncpy2(buf, str, sizeof(buf));
1402         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1403                 conv_localetodisp(buf, sizeof(buf), str);
1404
1405         strcrchomp(buf);
1406         fg_color = NULL;
1407
1408         /* change color of quotation
1409            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1410            Up to 3 levels of quotations are detected, and each
1411            level is colored using a different color. */
1412         if (prefs_common.enable_color
1413             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1414                 real_quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1415                 quotelevel = real_quotelevel;
1416                 /* set up the correct foreground color */
1417                 if (quotelevel > 2) {
1418                         /* recycle colors */
1419                         if (prefs_common.recycle_quote_colors)
1420                                 quotelevel %= 3;
1421                         else
1422                                 quotelevel = 2;
1423                 }
1424         }
1425
1426         if (quotelevel == -1)
1427                 fg_color = NULL;
1428         else {
1429                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1430                            "quote%d", quotelevel);
1431                 fg_color = quote_tag_str;
1432         }
1433
1434         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1435                 fg_color = "signature";
1436                 textview->is_in_signature = TRUE;
1437         }
1438
1439         if (real_quotelevel > -1) {
1440                 if ( previousquotelevel != real_quotelevel ) {
1441                         ClickableText *uri;
1442                         uri = g_new0(ClickableText, 1);
1443                         uri->uri = g_strdup("");
1444                         uri->data = g_strdup(buf);
1445                         uri->start = gtk_text_iter_get_offset(&iter);
1446                         gtk_text_buffer_insert_with_tags_by_name
1447                                                 (buffer, &iter, " [...]", -1,
1448                                                  "qlink", fg_color, NULL);
1449                         uri->end = gtk_text_iter_get_offset(&iter);
1450                         uri->filename = NULL;
1451                         uri->fg_color = g_strdup(fg_color);
1452                         uri->is_quote = TRUE;
1453                         uri->quote_level = real_quotelevel;
1454                         textview->uri_list =
1455                                 g_slist_append(textview->uri_list, uri);
1456                         gtk_text_buffer_insert(buffer, &iter, "  \n", -1);
1457
1458                         previousquotelevel = real_quotelevel;
1459                 } else {
1460                         GSList *last = g_slist_last(textview->uri_list);
1461                         ClickableText *lasturi = (ClickableText *)last->data;
1462                         gchar *tmp = g_strdup_printf("%s%s", (gchar *)lasturi->data, buf);
1463                         g_free(lasturi->data);
1464                         lasturi->data = tmp;
1465                 }
1466         } else {
1467                 textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1468                 previousquotelevel = -1;
1469         }
1470 }
1471
1472 void textview_write_link(TextView *textview, const gchar *str,
1473                          const gchar *uri, CodeConverter *conv)
1474 {
1475         GdkColor *link_color = NULL;
1476         GtkTextView *text;
1477         GtkTextBuffer *buffer;
1478         GtkTextIter iter;
1479         gchar buf[BUFFSIZE];
1480         gchar *bufp;
1481         ClickableText *r_uri;
1482
1483         if (!str || *str == '\0')
1484                 return;
1485         if (!uri)
1486                 return;
1487
1488         while (uri && *uri && g_ascii_isspace(*uri))
1489                 uri++;
1490
1491         text = GTK_TEXT_VIEW(textview->text);
1492         buffer = gtk_text_view_get_buffer(text);
1493         gtk_text_buffer_get_end_iter(buffer, &iter);
1494
1495         if (!conv)
1496                 strncpy2(buf, str, sizeof(buf));
1497         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1498                 conv_utf8todisp(buf, sizeof(buf), str);
1499
1500         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1501                 return;
1502
1503         strcrchomp(buf);
1504
1505         gtk_text_buffer_get_end_iter(buffer, &iter);
1506         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1507                 gunichar ch;
1508
1509                 ch = g_utf8_get_char(bufp);
1510                 if (!g_unichar_isspace(ch))
1511                         break;
1512         }
1513         if (bufp > buf)
1514                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1515
1516         if (prefs_common.enable_color) {
1517                 link_color = &uri_color;
1518         }
1519         r_uri = g_new0(ClickableText, 1);
1520         r_uri->uri = g_strdup(uri);
1521         r_uri->start = gtk_text_iter_get_offset(&iter);
1522         gtk_text_buffer_insert_with_tags_by_name
1523                 (buffer, &iter, bufp, -1, "link", NULL);
1524         r_uri->end = gtk_text_iter_get_offset(&iter);
1525         r_uri->filename = NULL;
1526         textview->uri_list = g_slist_append(textview->uri_list, r_uri);
1527 }
1528
1529 static void textview_set_cursor(GdkWindow *window, GdkCursor *cursor)
1530 {
1531         if (GDK_IS_WINDOW(window))
1532                 gdk_window_set_cursor(window, cursor);
1533 }
1534 void textview_clear(TextView *textview)
1535 {
1536         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1537         GtkTextBuffer *buffer;
1538         GdkWindow *window = gtk_text_view_get_window(text,
1539                                 GTK_TEXT_WINDOW_TEXT);
1540
1541         buffer = gtk_text_view_get_buffer(text);
1542         gtk_text_buffer_set_text(buffer, "", -1);
1543
1544         TEXTVIEW_STATUSBAR_POP(textview);
1545         textview_uri_list_remove_all(textview->uri_list);
1546         textview->uri_list = NULL;
1547         textview->uri_hover = NULL;
1548
1549         textview->body_pos = 0;
1550         if (textview->image)
1551                 gtk_widget_destroy(textview->image);
1552         textview->image = NULL;
1553
1554         if (textview->messageview->mainwin->cursor_count == 0) {
1555                 textview_set_cursor(window, text_cursor);
1556         } else {
1557                 textview_set_cursor(window, watch_cursor);
1558         }
1559 }
1560
1561 void textview_destroy(TextView *textview)
1562 {
1563         GtkTextBuffer *buffer;
1564         GtkClipboard *clipboard;
1565
1566         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1567         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
1568         gtk_text_buffer_remove_selection_clipboard(buffer, clipboard);
1569
1570         textview_uri_list_remove_all(textview->uri_list);
1571         textview->uri_list = NULL;
1572
1573         g_free(textview);
1574 }
1575
1576 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1577 {
1578         textview->show_all_headers = all_headers;
1579 }
1580
1581 #define CHANGE_TAG_FONT(tagname, font) { \
1582         tag = gtk_text_tag_table_lookup(tags, tagname); \
1583         if (tag) \
1584                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1585 }
1586
1587 void textview_set_font(TextView *textview, const gchar *codeset)
1588 {
1589         GtkTextTag *tag;
1590         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1591         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1592
1593         if (NORMAL_FONT) {
1594                 PangoFontDescription *font_desc, *bold_font_desc;
1595                 font_desc = pango_font_description_from_string
1596                                                 (NORMAL_FONT);
1597                 bold_font_desc = pango_font_description_from_string
1598                                                 (NORMAL_FONT);
1599                 if (font_desc) {
1600                         gtk_widget_modify_font(textview->text, font_desc);
1601                         CHANGE_TAG_FONT("header", font_desc);
1602                         pango_font_description_free(font_desc);
1603                 }
1604                 if (bold_font_desc) {
1605                         pango_font_description_set_weight
1606                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1607                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1608                         pango_font_description_free(bold_font_desc);
1609                 }
1610         }
1611
1612         if (prefs_common.textfont) {
1613                 PangoFontDescription *font_desc;
1614
1615                 font_desc = pango_font_description_from_string
1616                                                 (prefs_common.textfont);
1617                 if (font_desc) {
1618                         gtk_widget_modify_font(textview->text, font_desc);
1619                         pango_font_description_free(font_desc);
1620                 }
1621         }
1622         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1623                                              prefs_common.line_space / 2);
1624         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1625                                              prefs_common.line_space / 2);
1626 }
1627
1628 void textview_set_text(TextView *textview, const gchar *text)
1629 {
1630         GtkTextView *view;
1631         GtkTextBuffer *buffer;
1632
1633         g_return_if_fail(textview != NULL);
1634         g_return_if_fail(text != NULL);
1635
1636         textview_clear(textview);
1637
1638         view = GTK_TEXT_VIEW(textview->text);
1639         buffer = gtk_text_view_get_buffer(view);
1640         gtk_text_buffer_set_text(buffer, text, strlen(text));
1641 }
1642
1643 enum
1644 {
1645         H_DATE          = 0,
1646         H_FROM          = 1,
1647         H_TO            = 2,
1648         H_NEWSGROUPS    = 3,
1649         H_SUBJECT       = 4,
1650         H_CC            = 5,
1651         H_REPLY_TO      = 6,
1652         H_FOLLOWUP_TO   = 7,
1653         H_X_MAILER      = 8,
1654         H_X_NEWSREADER  = 9,
1655         H_USER_AGENT    = 10,
1656         H_ORGANIZATION  = 11,
1657 };
1658
1659 void textview_set_position(TextView *textview, gint pos)
1660 {
1661         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1662
1663         gtkut_text_view_set_position(text, pos);
1664 }
1665
1666 static gboolean header_is_internal(Header *header)
1667 {
1668         const gchar *internal_hdrs[] =
1669                 {"AF:", "NF:", "PS:", "SRH:", "SFN:", "DSR:", "MID:",
1670                  "CFG:", "PT:", "S:", "RQ:", "SSV:", "NSV:", "SSH:",
1671                  "R:", "MAID:", "SCF:", "RMID:", "FMID:", "NAID:",
1672                  "X-Sylpheed-Account-Id:", "X-Sylpheed-Sign:", "X-Sylpheed-Encrypt:",
1673                  "X-Sylpheed-Privacy-System:", "X-Sylpheed-End-Special-Headers:",
1674                  NULL};
1675         int i;
1676
1677         for (i = 0; internal_hdrs[i]; i++) {
1678                 if (!strcmp(header->name, internal_hdrs[i]))
1679                         return TRUE;
1680         }
1681         return FALSE;
1682 }
1683
1684 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1685 {
1686         gchar buf[BUFFSIZE];
1687         GPtrArray *headers, *sorted_headers;
1688         GSList *disphdr_list;
1689         Header *header;
1690         gint i;
1691
1692         g_return_val_if_fail(fp != NULL, NULL);
1693
1694         if (textview->show_all_headers) {
1695                 headers = procheader_get_header_array_asis(fp);
1696                 sorted_headers = g_ptr_array_new();
1697                 for (i = 0; i < headers->len; i++) {
1698                         header = g_ptr_array_index(headers, i);
1699                         if (!header_is_internal(header))
1700                                 g_ptr_array_add(sorted_headers, header);
1701                         else
1702                                 procheader_header_free(header);
1703                 }
1704                 g_ptr_array_free(headers, TRUE);
1705                 return sorted_headers;
1706         }
1707
1708         if (!prefs_common.display_header) {
1709                 while (fgets(buf, sizeof(buf), fp) != NULL)
1710                         if (buf[0] == '\r' || buf[0] == '\n') break;
1711                 return NULL;
1712         }
1713
1714         headers = procheader_get_header_array_asis(fp);
1715
1716         sorted_headers = g_ptr_array_new();
1717
1718         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1719              disphdr_list = disphdr_list->next) {
1720                 DisplayHeaderProp *dp =
1721                         (DisplayHeaderProp *)disphdr_list->data;
1722
1723                 for (i = 0; i < headers->len; i++) {
1724                         header = g_ptr_array_index(headers, i);
1725
1726                         if (procheader_headername_equal(header->name,
1727                                                         dp->name)) {
1728                                 if (dp->hidden)
1729                                         procheader_header_free(header);
1730                                 else
1731                                         g_ptr_array_add(sorted_headers, header);
1732
1733                                 g_ptr_array_remove_index(headers, i);
1734                                 i--;
1735                         }
1736                 }
1737         }
1738
1739         if (prefs_common.show_other_header) {
1740                 for (i = 0; i < headers->len; i++) {
1741                         header = g_ptr_array_index(headers, i);
1742                         if (!header_is_internal(header)) {
1743                                 g_ptr_array_add(sorted_headers, header);
1744                         } else {
1745                                 procheader_header_free(header);
1746                         }
1747                 }
1748                 g_ptr_array_free(headers, TRUE);
1749         } else
1750                 procheader_header_array_destroy(headers);
1751
1752
1753         return sorted_headers;
1754 }
1755
1756 static void textview_show_face(TextView *textview)
1757 {
1758         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1759         MsgInfo *msginfo = textview->messageview->msginfo;
1760         int x = 0;
1761
1762         if (prefs_common.display_header_pane
1763         ||  !prefs_common.display_xface)
1764                 goto bail;
1765
1766         if (!msginfo->extradata || !msginfo->extradata->face) {
1767                 goto bail;
1768         }
1769
1770         if (textview->image)
1771                 gtk_widget_destroy(textview->image);
1772
1773         textview->image = face_get_from_header(msginfo->extradata->face);
1774         g_return_if_fail(textview->image != NULL);
1775
1776         gtk_widget_show(textview->image);
1777
1778         x = textview->text->allocation.width - WIDTH -5;
1779
1780         gtk_text_view_add_child_in_window(text, textview->image,
1781                 GTK_TEXT_WINDOW_TEXT, x, 5);
1782
1783         gtk_widget_show_all(textview->text);
1784
1785
1786         return;
1787 bail:
1788         if (textview->image)
1789                 gtk_widget_destroy(textview->image);
1790         textview->image = NULL;
1791 }
1792
1793 static void textview_show_icon(TextView *textview, const gchar *stock_id)
1794 {
1795         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1796         int x = 0;
1797
1798         if (textview->image)
1799                 gtk_widget_destroy(textview->image);
1800
1801         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
1802         g_return_if_fail(textview->image != NULL);
1803
1804         gtk_widget_show(textview->image);
1805
1806         x = textview->text->allocation.width - WIDTH -5;
1807
1808         gtk_text_view_add_child_in_window(text, textview->image,
1809                 GTK_TEXT_WINDOW_TEXT, x, 5);
1810
1811         gtk_widget_show_all(textview->text);
1812
1813
1814         return;
1815 }
1816
1817 #if HAVE_LIBCOMPFACE
1818 static void textview_show_xface(TextView *textview)
1819 {
1820         MsgInfo *msginfo = textview->messageview->msginfo;
1821         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1822         int x = 0;
1823
1824         if (prefs_common.display_header_pane
1825         ||  !prefs_common.display_xface)
1826                 goto bail;
1827
1828         if (!msginfo || !msginfo->extradata)
1829                 goto bail;
1830
1831         if (msginfo->extradata->face)
1832                 return;
1833
1834         if (!msginfo->extradata->xface || strlen(msginfo->extradata->xface) < 5) {
1835                 goto bail;
1836         }
1837
1838         if (textview->image)
1839                 gtk_widget_destroy(textview->image);
1840
1841         textview->image = xface_get_from_header(msginfo->extradata->xface,
1842                                 &textview->text->style->white,
1843                                 textview->text->window);
1844         g_return_if_fail(textview->image != NULL);
1845
1846         gtk_widget_show(textview->image);
1847
1848         x = textview->text->allocation.width - WIDTH -5;
1849
1850         gtk_text_view_add_child_in_window(text, textview->image,
1851                 GTK_TEXT_WINDOW_TEXT, x, 5);
1852
1853         gtk_widget_show_all(textview->text);
1854
1855         return;
1856 bail:
1857         if (textview->image)
1858                 gtk_widget_destroy(textview->image);
1859         textview->image = NULL;
1860
1861 }
1862 #endif
1863
1864 static void textview_show_header(TextView *textview, GPtrArray *headers)
1865 {
1866         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1867         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1868         GtkTextIter iter;
1869         Header *header;
1870         gint i;
1871
1872         g_return_if_fail(headers != NULL);
1873
1874         for (i = 0; i < headers->len; i++) {
1875                 header = g_ptr_array_index(headers, i);
1876                 g_return_if_fail(header->name != NULL);
1877
1878                 gtk_text_buffer_get_end_iter (buffer, &iter);
1879                 if(prefs_common.trans_hdr == TRUE) {
1880                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
1881                         gchar *trans_hdr = gettext(hdr);
1882                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1883                                 &iter, trans_hdr, -1,
1884                                 "header_title", "header", NULL);
1885                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1886                                 &iter, ":", 1, "header_title", "header", NULL);
1887                         g_free(hdr);
1888                 } else {
1889                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1890                                 &iter, header->name,
1891                                 -1, "header_title", "header", NULL);
1892                 }
1893                 if (header->name[strlen(header->name) - 1] != ' ')
1894                 gtk_text_buffer_insert_with_tags_by_name
1895                                 (buffer, &iter, " ", 1,
1896                                  "header_title", "header", NULL);
1897
1898                 if (procheader_headername_equal(header->name, "Subject") ||
1899                     procheader_headername_equal(header->name, "From")    ||
1900                     procheader_headername_equal(header->name, "To")      ||
1901                     procheader_headername_equal(header->name, "Cc"))
1902                         unfold_line(header->body);
1903
1904                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1905                      procheader_headername_equal(header->name,
1906                                                  "X-Newsreader")) &&
1907                     strstr(header->body, "Sylpheed-Claws") != NULL) {
1908                         gtk_text_buffer_get_end_iter (buffer, &iter);
1909                         gtk_text_buffer_insert_with_tags_by_name
1910                                 (buffer, &iter, header->body, -1,
1911                                  "header", "emphasis", NULL);
1912                 } else {
1913                         gboolean hdr =
1914                           procheader_headername_equal(header->name, "From") ||
1915                           procheader_headername_equal(header->name, "To") ||
1916                           procheader_headername_equal(header->name, "Cc") ||
1917                           procheader_headername_equal(header->name, "Bcc") ||
1918                           procheader_headername_equal(header->name, "Reply-To") ||
1919                           procheader_headername_equal(header->name, "Sender");
1920                         textview_make_clickable_parts(textview, "header",
1921                                                       "hlink", header->body,
1922                                                       hdr);
1923                 }
1924                 gtk_text_buffer_get_end_iter (buffer, &iter);
1925                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1926                                                          "header", NULL);
1927         }
1928
1929         textview_show_face(textview);
1930 #if HAVE_LIBCOMPFACE
1931         textview_show_xface(textview);
1932 #endif
1933 }
1934
1935 gboolean textview_search_string(TextView *textview, const gchar *str,
1936                                 gboolean case_sens)
1937 {
1938         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1939
1940         return gtkut_text_view_search_string(text, str, case_sens);
1941 }
1942
1943 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1944                                          gboolean case_sens)
1945 {
1946         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1947
1948         return gtkut_text_view_search_string_backward(text, str, case_sens);
1949 }
1950
1951 void textview_scroll_one_line(TextView *textview, gboolean up)
1952 {
1953         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1954         GtkAdjustment *vadj = text->vadjustment;
1955
1956         gtkutils_scroll_one_line(GTK_WIDGET(text), vadj, up);
1957 }
1958
1959 gboolean textview_scroll_page(TextView *textview, gboolean up)
1960 {
1961         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1962         GtkAdjustment *vadj = text->vadjustment;
1963
1964         return gtkutils_scroll_page(GTK_WIDGET(text), vadj, up);
1965 }
1966
1967 #define KEY_PRESS_EVENT_STOP() \
1968         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1969                                        "key_press_event");
1970
1971 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1972                                  TextView *textview)
1973 {
1974         SummaryView *summaryview = NULL;
1975         MessageView *messageview = textview->messageview;
1976
1977         if (!event) return FALSE;
1978         if (messageview->mainwin)
1979                 summaryview = messageview->mainwin->summaryview;
1980
1981         switch (event->keyval) {
1982         case GDK_Tab:
1983         case GDK_Home:
1984         case GDK_Left:
1985         case GDK_Up:
1986         case GDK_Right:
1987         case GDK_Down:
1988         case GDK_Page_Up:
1989         case GDK_Page_Down:
1990         case GDK_End:
1991         case GDK_Control_L:
1992         case GDK_Control_R:
1993                 return FALSE;
1994         case GDK_space:
1995                 if (summaryview)
1996                         summary_pass_key_press_event(summaryview, event);
1997                 else
1998                         mimeview_scroll_page
1999                                 (messageview->mimeview,
2000                                  (event->state &
2001                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2002                 break;
2003         case GDK_BackSpace:
2004                 mimeview_scroll_page(messageview->mimeview, TRUE);
2005                 break;
2006         case GDK_Return:
2007                 mimeview_scroll_one_line
2008                         (messageview->mimeview, (event->state &
2009                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2010                 break;
2011         case GDK_Delete:
2012                 if (summaryview)
2013                         summary_pass_key_press_event(summaryview, event);
2014                 break;
2015         case GDK_y:
2016         case GDK_t:
2017         case GDK_l:
2018         case GDK_c:
2019                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
2020                         KEY_PRESS_EVENT_STOP();
2021                         mimeview_pass_key_press_event(messageview->mimeview,
2022                                                       event);
2023                         break;
2024                 }
2025                 /* possible fall through */
2026         default:
2027                 if (summaryview &&
2028                     event->window != messageview->mainwin->window->window) {
2029                         GdkEventKey tmpev = *event;
2030
2031                         tmpev.window = messageview->mainwin->window->window;
2032                         KEY_PRESS_EVENT_STOP();
2033                         gtk_widget_event(messageview->mainwin->window,
2034                                          (GdkEvent *)&tmpev);
2035                 }
2036                 break;
2037         }
2038
2039         return TRUE;
2040 }
2041
2042 static gboolean textview_motion_notify(GtkWidget *widget,
2043                                        GdkEventMotion *event,
2044                                        TextView *textview)
2045 {
2046         if (textview->loading)
2047                 return FALSE;
2048         textview_uri_update(textview, event->x, event->y);
2049         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
2050
2051         return FALSE;
2052 }
2053
2054 static gboolean textview_leave_notify(GtkWidget *widget,
2055                                       GdkEventCrossing *event,
2056                                       TextView *textview)
2057 {
2058         if (textview->loading)
2059                 return FALSE;
2060         textview_uri_update(textview, -1, -1);
2061
2062         return FALSE;
2063 }
2064
2065 static gboolean textview_visibility_notify(GtkWidget *widget,
2066                                            GdkEventVisibility *event,
2067                                            TextView *textview)
2068 {
2069         gint wx, wy;
2070         GdkWindow *window;
2071
2072         if (textview->loading)
2073                 return FALSE;
2074
2075         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
2076                                           GTK_TEXT_WINDOW_TEXT);
2077
2078         /* check if occurred for the text window part */
2079         if (window != event->window)
2080                 return FALSE;
2081
2082         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
2083         textview_uri_update(textview, wx, wy);
2084
2085         return FALSE;
2086 }
2087
2088 void textview_cursor_wait(TextView *textview)
2089 {
2090         GdkWindow *window = gtk_text_view_get_window(
2091                         GTK_TEXT_VIEW(textview->text),
2092                         GTK_TEXT_WINDOW_TEXT);
2093         textview_set_cursor(window, watch_cursor);
2094 }
2095
2096 void textview_cursor_normal(TextView *textview)
2097 {
2098         GdkWindow *window = gtk_text_view_get_window(
2099                         GTK_TEXT_VIEW(textview->text),
2100                         GTK_TEXT_WINDOW_TEXT);
2101         textview_set_cursor(window, text_cursor);
2102 }
2103
2104 static void textview_uri_update(TextView *textview, gint x, gint y)
2105 {
2106         GtkTextBuffer *buffer;
2107         GtkTextIter start_iter, end_iter;
2108         ClickableText *uri = NULL;
2109
2110         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2111
2112         if (x != -1 && y != -1) {
2113                 gint bx, by;
2114                 GtkTextIter iter;
2115                 GSList *tags;
2116                 GSList *cur;
2117
2118                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
2119                                                       GTK_TEXT_WINDOW_WIDGET,
2120                                                       x, y, &bx, &by);
2121                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
2122                                                    &iter, bx, by);
2123
2124                 tags = gtk_text_iter_get_tags(&iter);
2125                 for (cur = tags; cur != NULL; cur = cur->next) {
2126                         GtkTextTag *tag = cur->data;
2127                         char *name;
2128
2129                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
2130
2131                         if ((!strcmp(name, "link") || !strcmp(name, "hlink"))
2132                             && textview_get_uri_range(textview, &iter, tag,
2133                                                       &start_iter, &end_iter)) {
2134
2135                                 uri = textview_get_uri_from_range(textview,
2136                                                                   &iter, tag,
2137                                                                   &start_iter,
2138                                                                   &end_iter);
2139                         }
2140                         g_free(name);
2141                         if (uri)
2142                                 break;
2143                 }
2144                 g_slist_free(tags);
2145         }
2146
2147         if (uri != textview->uri_hover) {
2148                 GdkWindow *window;
2149
2150                 if (textview->uri_hover)
2151                         gtk_text_buffer_remove_tag_by_name(buffer,
2152                                                            "link-hover",
2153                                                            &textview->uri_hover_start_iter,
2154                                                            &textview->uri_hover_end_iter);
2155
2156                 textview->uri_hover = uri;
2157                 if (uri) {
2158                         textview->uri_hover_start_iter = start_iter;
2159                         textview->uri_hover_end_iter = end_iter;
2160                 }
2161
2162                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
2163                                                   GTK_TEXT_WINDOW_TEXT);
2164                 if (textview->messageview->mainwin->cursor_count == 0) {
2165                         textview_set_cursor(window, uri ? hand_cursor : text_cursor);
2166                 } else {
2167                         textview_set_cursor(window, watch_cursor);
2168                 }
2169
2170                 TEXTVIEW_STATUSBAR_POP(textview);
2171
2172                 if (uri) {
2173                         char *trimmed_uri;
2174
2175                         if (!uri->is_quote)
2176                                 gtk_text_buffer_apply_tag_by_name(buffer,
2177                                                           "link-hover",
2178                                                           &start_iter,
2179                                                           &end_iter);
2180
2181                         trimmed_uri = trim_string(uri->uri, 60);
2182                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
2183                         g_free(trimmed_uri);
2184                 }
2185         }
2186 }
2187
2188 static gboolean textview_get_uri_range(TextView *textview,
2189                                        GtkTextIter *iter,
2190                                        GtkTextTag *tag,
2191                                        GtkTextIter *start_iter,
2192                                        GtkTextIter *end_iter)
2193 {
2194         return get_tag_range(iter, tag, start_iter, end_iter);
2195 }
2196
2197 static ClickableText *textview_get_uri_from_range(TextView *textview,
2198                                               GtkTextIter *iter,
2199                                               GtkTextTag *tag,
2200                                               GtkTextIter *start_iter,
2201                                               GtkTextIter *end_iter)
2202 {
2203         gint start_pos, end_pos, cur_pos;
2204         ClickableText *uri = NULL;
2205         GSList *cur;
2206
2207         start_pos = gtk_text_iter_get_offset(start_iter);
2208         end_pos = gtk_text_iter_get_offset(end_iter);
2209         cur_pos = gtk_text_iter_get_offset(iter);
2210
2211         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
2212                 ClickableText *uri_ = (ClickableText *)cur->data;
2213                 if (start_pos == uri_->start &&
2214                     end_pos ==  uri_->end) {
2215                         uri = uri_;
2216                         break;
2217                 }
2218         }
2219         for (cur = textview->uri_list; uri == NULL && cur != NULL; cur = cur->next) {
2220                 ClickableText *uri_ = (ClickableText *)cur->data;
2221                 if (start_pos == uri_->start ||
2222                            end_pos == uri_->end) {
2223                         /* in case of contiguous links, textview_get_uri_range
2224                          * returns a broader range (start of 1st link to end
2225                          * of last link).
2226                          * In that case, correct link is the one covering
2227                          * current iter.
2228                          */
2229                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
2230                                 uri = uri_;
2231                                 break;
2232                         }
2233                 }
2234         }
2235
2236         return uri;
2237 }
2238
2239 static ClickableText *textview_get_uri(TextView *textview,
2240                                    GtkTextIter *iter,
2241                                    GtkTextTag *tag)
2242 {
2243         GtkTextIter start_iter, end_iter;
2244         ClickableText *uri = NULL;
2245
2246         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2247                                    &end_iter))
2248                 uri = textview_get_uri_from_range(textview, iter, tag,
2249                                                   &start_iter, &end_iter);
2250
2251         return uri;
2252 }
2253
2254 static void textview_shift_uris_after(TextView *textview, gint start, gint shift)
2255 {
2256         GSList *cur;
2257         for (cur = textview->uri_list; cur; cur = cur->next) {
2258                 ClickableText *uri = (ClickableText *)cur->data;
2259                 if (uri->start <= start)
2260                         continue;
2261                 uri->start += shift;
2262                 uri->end += shift;
2263         }
2264 }
2265
2266 static void textview_remove_uris_in(TextView *textview, gint start, gint end)
2267 {
2268         GSList *cur;
2269         for (cur = textview->uri_list; cur; ) {
2270                 ClickableText *uri = (ClickableText *)cur->data;
2271                 if (uri->start > start && uri->end < end) {
2272                         cur = cur->next;
2273                         textview->uri_list = g_slist_remove(textview->uri_list, uri);
2274                         g_free(uri->uri);
2275                         g_free(uri->filename);
2276                         if (uri->is_quote) {
2277                                 g_free(uri->fg_color);
2278                                 g_free(uri->data);
2279                                 /* (only free data in quotes uris) */
2280                         }
2281                         g_free(uri);
2282                 } else {
2283                         cur = cur->next;
2284                 }
2285
2286         }
2287 }
2288
2289 static void textview_toggle_quote(TextView *textview, ClickableText *uri, gboolean expand_only)
2290 {
2291         GtkTextIter start, end;
2292         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2293
2294         if (!uri->is_quote)
2295                 return;
2296
2297         if (uri->q_expanded && expand_only)
2298                 return;
2299
2300         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2301         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2302         if (textview->uri_hover)
2303                 gtk_text_buffer_remove_tag_by_name(buffer,
2304                                                    "link-hover",
2305                                                    &textview->uri_hover_start_iter,
2306                                                    &textview->uri_hover_end_iter);
2307         textview->uri_hover = NULL;
2308         gtk_text_buffer_remove_tag_by_name(buffer,
2309                                            "qlink",
2310                                            &start,
2311                                            &end);
2312         /* when shifting URIs start and end, we have to do it per-UTF8-char
2313          * so use g_utf8_strlen(). OTOH, when inserting in the text buffer,
2314          * we have to pass a number of bytes, so use strlen(). disturbing. */
2315
2316         if (!uri->q_expanded) {
2317                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2318                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2319                 textview_shift_uris_after(textview, uri->start,
2320                         g_utf8_strlen((gchar *)uri->data, -1)-strlen(" [...]\n"));
2321                 gtk_text_buffer_delete(buffer, &start, &end);
2322                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2323                 gtk_text_buffer_insert_with_tags_by_name
2324                                 (buffer, &start, (gchar *)uri->data,
2325                                  strlen((gchar *)uri->data)-1,
2326                                  "qlink", (gchar *)uri->fg_color, NULL);
2327                 uri->end = gtk_text_iter_get_offset(&start);
2328                 textview_make_clickable_parts_later(textview,
2329                                           uri->start, uri->end);
2330                 uri->q_expanded = TRUE;
2331         } else {
2332                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2333                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2334                 textview_remove_uris_in(textview, uri->start, uri->end);
2335                 textview_shift_uris_after(textview, uri->start,
2336                         strlen(" [...]\n")-g_utf8_strlen((gchar *)uri->data, -1));
2337                 gtk_text_buffer_delete(buffer, &start, &end);
2338                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2339                 gtk_text_buffer_insert_with_tags_by_name
2340                                 (buffer, &start, " [...]", -1,
2341                                  "qlink", (gchar *)uri->fg_color, NULL);
2342                 uri->end = gtk_text_iter_get_offset(&start);
2343                 uri->q_expanded = FALSE;
2344         }
2345         if (textview->messageview->mainwin->cursor_count == 0) {
2346                 textview_cursor_normal(textview);
2347         } else {
2348                 textview_cursor_wait(textview);
2349         }
2350 }
2351 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2352                                             GdkEvent *event, GtkTextIter *iter,
2353                                             TextView *textview)
2354 {
2355         GdkEventButton *bevent;
2356         ClickableText *uri = NULL;
2357         char *tagname;
2358         gboolean qlink = FALSE;
2359
2360         if (!event)
2361                 return FALSE;
2362
2363         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2364                 && event->type != GDK_MOTION_NOTIFY)
2365                 return FALSE;
2366
2367         uri = textview_get_uri(textview, iter, tag);
2368         if (!uri)
2369                 return FALSE;
2370
2371         g_object_get(G_OBJECT(tag), "name", &tagname, NULL);
2372
2373         if (!strcmp(tagname, "qlink"))
2374                 qlink = TRUE;
2375
2376         g_free(tagname);
2377
2378         bevent = (GdkEventButton *) event;
2379
2380         /* doubleclick: open compose / add address / browser */
2381         if (qlink && event->type == GDK_BUTTON_PRESS && bevent->button != 1) {
2382                 /* pass rightclick through */
2383                 return FALSE;
2384         } else if ((event->type == (qlink ? GDK_2BUTTON_PRESS:GDK_BUTTON_PRESS) && bevent->button == 1) ||
2385                 bevent->button == 2 || bevent->button == 3) {
2386                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2387                         MimeView *mimeview =
2388                                 (textview->messageview)?
2389                                         textview->messageview->mimeview:NULL;
2390                         if (mimeview && bevent->button == 1) {
2391                                 mimeview_handle_cmd(mimeview, uri->filename, NULL, uri->data);
2392                         } else if (mimeview && bevent->button == 2 &&
2393                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2394                                 mimeview_handle_cmd(mimeview, "sc://open_attachment", NULL, uri->data);
2395                         } else if (mimeview && bevent->button == 3 &&
2396                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2397                                 mimeview_handle_cmd(mimeview, "sc://menu_attachment", bevent, uri->data);
2398                         }
2399                         return TRUE;
2400                 } else if (qlink && bevent->button == 1) {
2401                         textview_toggle_quote(textview, uri, FALSE);
2402                         return TRUE;
2403                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2404                         if (bevent->button == 3) {
2405                                 g_object_set_data(
2406                                         G_OBJECT(textview->mail_popup_menu),
2407                                         "menu_button", uri);
2408                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2409                                                NULL, NULL, NULL, NULL,
2410                                                bevent->button, bevent->time);
2411                         } else {
2412                                 PrefsAccount *account = NULL;
2413                                 FolderItem   *folder_item = NULL;
2414                                 if (textview->messageview && textview->messageview->msginfo &&
2415                                     textview->messageview->msginfo->folder) {
2416
2417
2418                                         folder_item = textview->messageview->msginfo->folder;
2419                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2420                                                 account = account_find_from_id(folder_item->prefs->default_account);
2421                                 }
2422                                 compose_new_with_folderitem(account, folder_item, uri->uri + 7);
2423                         }
2424                         return TRUE;
2425                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2426                         if (bevent->button == 1 &&
2427                             textview_uri_security_check(textview, uri) == TRUE)
2428                                         open_uri(uri->uri,
2429                                                  prefs_common.uri_cmd);
2430                         else if (bevent->button == 3 && !qlink) {
2431                                 g_object_set_data(
2432                                         G_OBJECT(textview->link_popup_menu),
2433                                         "menu_button", uri);
2434                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2435                                                NULL, NULL, NULL, NULL,
2436                                                bevent->button, bevent->time);
2437                         }
2438                         return TRUE;
2439                 } else {
2440                         if (bevent->button == 3 && !qlink) {
2441                                 g_object_set_data(
2442                                         G_OBJECT(textview->file_popup_menu),
2443                                         "menu_button", uri);
2444                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2445                                                NULL, NULL, NULL, NULL,
2446                                                bevent->button, bevent->time);
2447                                 return TRUE;
2448                         }
2449                 }
2450         }
2451
2452         return FALSE;
2453 }
2454
2455 /*!
2456  *\brief    Check to see if a web URL has been disguised as a different
2457  *          URL (possible with HTML email).
2458  *
2459  *\param    uri The uri to check
2460  *
2461  *\param    textview The TextView the URL is contained in
2462  *
2463  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2464  *          it anyway, otherwise FALSE
2465  */
2466 static gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
2467 {
2468         gchar *visible_str;
2469         gboolean retval = TRUE;
2470         GtkTextBuffer *buffer;
2471         GtkTextIter start, end;
2472
2473         if (is_uri_string(uri->uri) == FALSE)
2474                 return TRUE;
2475
2476         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2477
2478         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2479         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2480
2481         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2482
2483         if (visible_str == NULL)
2484                 return TRUE;
2485
2486         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2487                 gchar *uri_path;
2488                 gchar *visible_uri_path;
2489
2490                 uri_path = get_uri_path(uri->uri);
2491                 visible_uri_path = get_uri_path(visible_str);
2492                 if (path_cmp(uri_path, visible_uri_path) != 0)
2493                         retval = FALSE;
2494         }
2495
2496         if (retval == FALSE) {
2497                 gchar *msg;
2498                 AlertValue aval;
2499
2500                 msg = g_markup_printf_escaped(_("The real URL is different from "
2501                                                 "the displayed URL.\n"
2502                                                 "\n"
2503                                                 "<b>Displayed URL:</b> %s\n"
2504                                                 "\n"
2505                                                 "<b>Real URL:</b> %s\n"
2506                                                 "\n"
2507                                                 "Open it anyway?"),
2508                                                visible_str,uri->uri);
2509                 aval = alertpanel_full(_("Phishing attempt warning"), msg,
2510                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2511                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2512                 g_free(msg);
2513                 if (aval == G_ALERTALTERNATE)
2514                         retval = TRUE;
2515         }
2516
2517         g_free(visible_str);
2518
2519         return retval;
2520 }
2521
2522 static void textview_uri_list_remove_all(GSList *uri_list)
2523 {
2524         GSList *cur;
2525
2526         for (cur = uri_list; cur != NULL; cur = cur->next) {
2527                 if (cur->data) {
2528                         g_free(((ClickableText *)cur->data)->uri);
2529                         g_free(((ClickableText *)cur->data)->filename);
2530                         if (((ClickableText *)cur->data)->is_quote) {
2531                                 g_free(((ClickableText *)cur->data)->fg_color);
2532                                 g_free(((ClickableText *)cur->data)->data);
2533                                 /* (only free data in quotes uris) */
2534                         }
2535                         g_free(cur->data);
2536                 }
2537         }
2538
2539         g_slist_free(uri_list);
2540 }
2541
2542 static void open_uri_cb (TextView *textview, guint action, void *data)
2543 {
2544         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2545                                            "menu_button");
2546         if (uri == NULL)
2547                 return;
2548
2549         if (textview_uri_security_check(textview, uri) == TRUE)
2550                 open_uri(uri->uri,
2551                          prefs_common.uri_cmd);
2552         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2553                           NULL);
2554 }
2555
2556 static void open_image_cb (TextView *textview, guint action, void *data)
2557 {
2558         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2559                                            "menu_button");
2560
2561         gchar *cmd = NULL;
2562         gchar buf[1024];
2563         const gchar *p;
2564         gchar *filename = NULL;
2565         gchar *tmp_filename = NULL;
2566
2567         if (uri == NULL)
2568                 return;
2569
2570         if (uri->filename == NULL)
2571                 return;
2572
2573         filename = g_strdup(uri->filename);
2574
2575         if (!g_utf8_validate(filename, -1, NULL)) {
2576                 gchar *tmp = conv_filename_to_utf8(filename);
2577                 g_free(filename);
2578                 filename = tmp;
2579         }
2580
2581         subst_for_filename(filename);
2582
2583         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2584         copy_file(tmp_filename, filename, FALSE);
2585         g_free(tmp_filename);
2586
2587         cmd = mailcap_get_command_for_type("image/jpeg", filename);
2588         if (cmd == NULL) {
2589                 gboolean remember = FALSE;
2590                 cmd = input_dialog_combo_remember
2591                         (_("Open with"),
2592                          _("Enter the command line to open file:\n"
2593                            "('%s' will be replaced with file name)"),
2594                          prefs_common.mime_open_cmd,
2595                          prefs_common.mime_open_cmd_history,
2596                          TRUE, &remember);
2597                 if (cmd && remember) {
2598                         mailcap_update_default("image/jpeg", cmd);
2599                 }
2600         }
2601         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2602             !strchr(p + 2, '%'))
2603                 g_snprintf(buf, sizeof(buf), cmd, filename);
2604         else {
2605                 g_warning("Image viewer command line is invalid: '%s'", cmd);
2606                 return;
2607         }
2608
2609         execute_command_line(buf, TRUE);
2610
2611         g_free(filename);
2612         g_free(cmd);
2613
2614         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2615                           NULL);
2616 }
2617
2618 static void save_file_cb (TextView *textview, guint action, void *data)
2619 {
2620         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2621                                            "menu_button");
2622         gchar *filename = NULL;
2623         gchar *filepath = NULL;
2624         gchar *filedir = NULL;
2625         gchar *tmp_filename = NULL;
2626         if (uri == NULL)
2627                 return;
2628
2629         if (uri->filename == NULL)
2630                 return;
2631
2632         filename = g_strdup(uri->filename);
2633
2634         if (!g_utf8_validate(filename, -1, NULL)) {
2635                 gchar *tmp = conv_filename_to_utf8(filename);
2636                 g_free(filename);
2637                 filename = tmp;
2638         }
2639
2640         subst_for_filename(filename);
2641
2642         if (prefs_common.attach_save_dir)
2643                 filepath = g_strconcat(prefs_common.attach_save_dir,
2644                                        G_DIR_SEPARATOR_S, filename, NULL);
2645         else
2646                 filepath = g_strdup(filename);
2647
2648         g_free(filename);
2649
2650         filename = filesel_select_file_save(_("Save as"), filepath);
2651         if (!filename) {
2652                 g_free(filepath);
2653                 return;
2654         }
2655
2656         if (is_file_exist(filename)) {
2657                 AlertValue aval;
2658                 gchar *res;
2659
2660                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2661                                       filename);
2662                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2663                                   GTK_STOCK_OK, NULL);
2664                 g_free(res);
2665                 if (G_ALERTALTERNATE != aval)
2666                         return;
2667         }
2668
2669         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2670         copy_file(tmp_filename, filename, FALSE);
2671         g_free(tmp_filename);
2672
2673         filedir = g_path_get_dirname(filename);
2674         if (filedir && strcmp(filedir, ".")) {
2675                 g_free(prefs_common.attach_save_dir);
2676                 prefs_common.attach_save_dir = g_strdup(filedir);
2677         }
2678
2679         g_free(filedir);
2680         g_free(filepath);
2681
2682         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2683                           NULL);
2684 }
2685
2686 static void copy_uri_cb (TextView *textview, guint action, void *data)
2687 {
2688         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2689                                            "menu_button");
2690         if (uri == NULL)
2691                 return;
2692
2693         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2694         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2695         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2696                           NULL);
2697 }
2698
2699 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2700 {
2701         gchar *fromname, *fromaddress;
2702         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2703                                            "menu_button");
2704         if (uri == NULL)
2705                 return;
2706
2707         /* extract url */
2708         fromaddress = g_strdup(uri->uri + 7);
2709         /* Hiroyuki: please put this function in utils.c! */
2710         fromname = procheader_get_fromname(fromaddress);
2711         extract_address(fromaddress);
2712         g_message("adding from textview %s <%s>", fromname, fromaddress);
2713         /* Add to address book - Match */
2714         addressbook_add_contact( fromname, fromaddress, NULL );
2715
2716         g_free(fromaddress);
2717         g_free(fromname);
2718 }
2719
2720 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2721 {
2722         PrefsAccount *account = NULL;
2723         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2724                                            "menu_button");
2725         if (uri == NULL)
2726                 return;
2727
2728         if (textview->messageview && textview->messageview->msginfo &&
2729             textview->messageview->msginfo->folder) {
2730                 FolderItem   *folder_item;
2731
2732                 folder_item = textview->messageview->msginfo->folder;
2733                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2734                         account = account_find_from_id(folder_item->prefs->default_account);
2735         }
2736         compose_new(account, uri->uri + 7, NULL);
2737 }
2738
2739 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2740 {
2741         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2742                                            "menu_button");
2743         if (uri == NULL)
2744                 return;
2745
2746         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2747         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2748         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2749                           NULL);
2750 }
2751