src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gdk/gdk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <gtk/gtkvbox.h>
  31 #include <gtk/gtkscrolledwindow.h>
  32 #include <gtk/gtksignal.h>
  33 #include <stdio.h>
  34 #include <ctype.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #include <errno.h>
  38 #if HAVE_SYS_WAIT_H
  39 #include <sys/wait.h>
  40 #endif
  41 #if HAVE_LIBCOMPFACE
  42 #  include <compface.h>
  43 #endif
  44
  45 #if HAVE_LIBCOMPFACE
  46 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  47 #endif
  48
  49 #include "main.h"
  50 #include "summaryview.h"
  51 #include "procheader.h"
  52 #include "prefs_common.h"
  53 #include "codeconv.h"
  54 #include "utils.h"
  55 #include "gtkutils.h"
  56 #include "procmime.h"
  57 #include "html.h"
  58 #include "enriched.h"
  59 #include "compose.h"
  60 #include "addressbook.h"
  61 #include "displayheader.h"
  62 #include "account.h"
  63 #include "mimeview.h"
  64 #include "alertpanel.h"
  65 #include "menu.h"
  66 #include "image_viewer.h"
  67 #include "filesel.h"
  68 #include "base64.h"
  69 #include "inputdialog.h"
  70 #include "timing.h"
  71
  72 gint previousquotelevel = -1;
  73
  74 static GdkColor quote_colors[3] = {
  75         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  76         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  77         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  78 };
  79
  80 static GdkColor quote_bgcolors[3] = {
  81         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  82         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  83         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  84 };
  85 static GdkColor signature_color = {
  86         (gulong)0,
  87         (gushort)0x7fff,
  88         (gushort)0x7fff,
  89         (gushort)0x7fff
  90 };
  91
  92 static GdkColor uri_color = {
  93         (gulong)0,
  94         (gushort)0,
  95         (gushort)0,
  96         (gushort)0
  97 };
  98
  99 static GdkColor emphasis_color = {
 100         (gulong)0,
 101         (gushort)0,
 102         (gushort)0,
 103         (gushort)0xcfff
 104 };
 105
 106 static GdkCursor *hand_cursor = NULL;
 107 static GdkCursor *text_cursor = NULL;
 108 static GdkCursor *watch_cursor= NULL;
 109
 110 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 111 {       if (textview->messageview->statusbar)                               \
 112         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 113                            textview->messageview->statusbar_cid, str);      \
 114 }
 115
 116 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 117 {       if (textview->messageview->statusbar)                              \
 118         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 119                           textview->messageview->statusbar_cid);           \
 120 }
 121
 122 static void textview_show_ertf          (TextView       *textview,
 123                                          FILE           *fp,
 124                                          CodeConverter  *conv);
 125 static void textview_add_part           (TextView       *textview,
 126                                          MimeInfo       *mimeinfo);
 127 static void textview_add_parts          (TextView       *textview,
 128                                          MimeInfo       *mimeinfo);
 129 static void textview_write_body         (TextView       *textview,
 130                                          MimeInfo       *mimeinfo);
 131 static void textview_show_html          (TextView       *textview,
 132                                          FILE           *fp,
 133                                          CodeConverter  *conv);
 134
 135 static void textview_write_line         (TextView       *textview,
 136                                          const gchar    *str,
 137                                          CodeConverter  *conv,
 138                                          gboolean        do_quote_folding);
 139 static void textview_write_link         (TextView       *textview,
 140                                          const gchar    *str,
 141                                          const gchar    *uri,
 142                                          CodeConverter  *conv);
 143
 144 static GPtrArray *textview_scan_header  (TextView       *textview,
 145                                          FILE           *fp);
 146 static void textview_show_header        (TextView       *textview,
 147                                          GPtrArray      *headers);
 148
 149 static gint textview_key_pressed                (GtkWidget      *widget,
 150                                                  GdkEventKey    *event,
 151                                                  TextView       *textview);
 152 static gboolean textview_motion_notify          (GtkWidget      *widget,
 153                                                  GdkEventMotion *motion,
 154                                                  TextView       *textview);
 155 static gboolean textview_leave_notify           (GtkWidget        *widget,
 156                                                  GdkEventCrossing *event,
 157                                                  TextView         *textview);
 158 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 159                                                  GdkEventVisibility *event,
 160                                                  TextView       *textview);
 161 static void textview_uri_update                 (TextView       *textview,
 162                                                  gint           x,
 163                                                  gint           y);
 164 static gboolean textview_get_uri_range          (TextView       *textview,
 165                                                  GtkTextIter    *iter,
 166                                                  GtkTextTag     *tag,
 167                                                  GtkTextIter    *start_iter,
 168                                                  GtkTextIter    *end_iter);
 169 static ClickableText *textview_get_uri_from_range       (TextView       *textview,
 170                                                  GtkTextIter    *iter,
 171                                                  GtkTextTag     *tag,
 172                                                  GtkTextIter    *start_iter,
 173                                                  GtkTextIter    *end_iter);
 174 static ClickableText *textview_get_uri          (TextView       *textview,
 175                                                  GtkTextIter    *iter,
 176                                                  GtkTextTag     *tag);
 177 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 178                                                  GObject        *obj,
 179                                                  GdkEvent       *event,
 180                                                  GtkTextIter    *iter,
 181                                                  TextView       *textview);
 182
 183 static gboolean textview_uri_security_check     (TextView       *textview,
 184                                                  ClickableText  *uri);
 185 static void textview_uri_list_remove_all        (GSList         *uri_list);
 186
 187 static void textview_toggle_quote               (TextView       *textview,
 188                                                  GSList         *start_list,
 189                                                  ClickableText  *uri,
 190                                                  gboolean        expand_only);
 191
 192 static void open_uri_cb                         (TextView       *textview,
 193                                                  guint           action,
 194                                                  void           *data);
 195 static void copy_uri_cb                         (TextView       *textview,
 196                                                  guint           action,
 197                                                  void           *data);
 198 static void add_uri_to_addrbook_cb              (TextView       *textview,
 199                                                  guint           action,
 200                                                  void           *data);
 201 static void mail_to_uri_cb                      (TextView       *textview,
 202                                                  guint           action,
 203                                                  void           *data);
 204 static void copy_mail_to_uri_cb                 (TextView       *textview,
 205                                                  guint           action,
 206                                                  void           *data);
 207 static void save_file_cb                        (TextView       *textview,
 208                                                  guint           action,
 209                                                  void           *data);
 210 static void open_image_cb                       (TextView       *textview,
 211                                                  guint           action,
 212                                                  void           *data);
 213
 214 static GtkItemFactoryEntry textview_link_popup_entries[] =
 215 {
 216         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 217         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 218 };
 219
 220 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 221 {
 222         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 223         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 224         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 225 };
 226
 227 static GtkItemFactoryEntry textview_file_popup_entries[] =
 228 {
 229         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 230         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 231 };
 232
 233 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 234 {
 235 #ifndef WIDTH
 236 #  define WIDTH 48
 237 #  define HEIGHT 48
 238 #endif
 239         if (textview->image) {
 240                 gint x, y, x1;
 241                 x1 = textview->text->allocation.width - WIDTH - 5;
 242                 gtk_text_view_buffer_to_window_coords(
 243                         GTK_TEXT_VIEW(textview->text),
 244                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 245                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 246                         textview->image, x1, y);
 247         }
 248 }
 249
 250 static void textview_size_allocate_cb   (GtkWidget      *widget,
 251                                          GtkAllocation  *allocation,
 252                                          gpointer        data)
 253 {
 254         scrolled_cb(NULL, (TextView *)data);
 255 }
 256
 257 TextView *textview_create(void)
 258 {
 259         TextView *textview;
 260         GtkWidget *vbox;
 261         GtkWidget *scrolledwin;
 262         GtkWidget *text;
 263         GtkTextBuffer *buffer;
 264         GtkClipboard *clipboard;
 265         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 266         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 267         GtkAdjustment *adj;
 268         gint n_entries;
 269
 270         debug_print("Creating text view...\n");
 271         textview = g_new0(TextView, 1);
 272
 273         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 274         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 275                                        GTK_POLICY_AUTOMATIC,
 276                                        GTK_POLICY_AUTOMATIC);
 277         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 278                                             GTK_SHADOW_IN);
 279         gtk_widget_set_size_request
 280                 (scrolledwin, prefs_common.mainview_width, -1);
 281
 282         /* create GtkSText widgets for single-byte and multi-byte character */
 283         text = gtk_text_view_new();
 284         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 285         gtk_widget_show(text);
 286         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 287         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 288         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 289         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 290         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 291
 292         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 293         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 294         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 295
 296         gtk_widget_ensure_style(text);
 297
 298         gtk_widget_ref(scrolledwin);
 299
 300         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 301
 302         g_signal_connect(G_OBJECT(text), "key-press-event",
 303                          G_CALLBACK(textview_key_pressed), textview);
 304         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 305                          G_CALLBACK(textview_motion_notify), textview);
 306         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 307                          G_CALLBACK(textview_leave_notify), textview);
 308         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 309                          G_CALLBACK(textview_visibility_notify), textview);
 310         adj = gtk_scrolled_window_get_vadjustment(
 311                 GTK_SCROLLED_WINDOW(scrolledwin));
 312         g_signal_connect(G_OBJECT(adj), "value-changed",
 313                          G_CALLBACK(scrolled_cb), textview);
 314         g_signal_connect(G_OBJECT(text), "size_allocate",
 315                          G_CALLBACK(textview_size_allocate_cb),
 316                          textview);
 317
 318
 319         gtk_widget_show(scrolledwin);
 320
 321         vbox = gtk_vbox_new(FALSE, 0);
 322         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 323
 324         gtk_widget_show(vbox);
 325
 326         n_entries = sizeof(textview_link_popup_entries) /
 327                 sizeof(textview_link_popup_entries[0]);
 328         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 329                                       "<UriPopupMenu>", &link_popupfactory,
 330                                       textview);
 331
 332         n_entries = sizeof(textview_mail_popup_entries) /
 333                 sizeof(textview_mail_popup_entries[0]);
 334         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 335                                       "<UriPopupMenu>", &mail_popupfactory,
 336                                       textview);
 337
 338         n_entries = sizeof(textview_file_popup_entries) /
 339                 sizeof(textview_file_popup_entries[0]);
 340         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 341                                       "<FilePopupMenu>", &file_popupfactory,
 342                                       textview);
 343
 344         textview->vbox               = vbox;
 345         textview->scrolledwin        = scrolledwin;
 346         textview->text               = text;
 347         textview->uri_list           = NULL;
 348         textview->body_pos           = 0;
 349         textview->show_all_headers   = FALSE;
 350         textview->last_buttonpress   = GDK_NOTHING;
 351         textview->link_popup_menu    = link_popupmenu;
 352         textview->link_popup_factory = link_popupfactory;
 353         textview->mail_popup_menu    = mail_popupmenu;
 354         textview->mail_popup_factory = mail_popupfactory;
 355         textview->file_popup_menu    = file_popupmenu;
 356         textview->file_popup_factory = file_popupfactory;
 357         textview->image              = NULL;
 358         return textview;
 359 }
 360
 361 static void textview_create_tags(GtkTextView *text, TextView *textview)
 362 {
 363         GtkTextBuffer *buffer;
 364         GtkTextTag *tag, *qtag;
 365         static PangoFontDescription *font_desc, *bold_font_desc;
 366
 367         if (!font_desc)
 368                 font_desc = pango_font_description_from_string
 369                         (NORMAL_FONT);
 370
 371         if (!bold_font_desc) {
 372                 bold_font_desc = pango_font_description_from_string
 373                         (NORMAL_FONT);
 374                 pango_font_description_set_weight
 375                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 376         }
 377
 378         buffer = gtk_text_view_get_buffer(text);
 379
 380         gtk_text_buffer_create_tag(buffer, "header",
 381                                    "pixels-above-lines", 0,
 382                                    "pixels-above-lines-set", TRUE,
 383                                    "pixels-below-lines", 0,
 384                                    "pixels-below-lines-set", TRUE,
 385                                    "font-desc", font_desc,
 386                                    "left-margin", 3,
 387                                    "left-margin-set", TRUE,
 388                                    NULL);
 389         gtk_text_buffer_create_tag(buffer, "header_title",
 390                                    "font-desc", bold_font_desc,
 391                                    NULL);
 392         tag = gtk_text_buffer_create_tag(buffer, "hlink",
 393                                    "pixels-above-lines", 0,
 394                                    "pixels-above-lines-set", TRUE,
 395                                    "pixels-below-lines", 0,
 396                                    "pixels-below-lines-set", TRUE,
 397                                    "font-desc", font_desc,
 398                                    "left-margin", 3,
 399                                    "left-margin-set", TRUE,
 400                                    "foreground-gdk", &uri_color,
 401                                    NULL);
 402         g_signal_connect(G_OBJECT(tag), "event",
 403                          G_CALLBACK(textview_uri_button_pressed), textview);
 404         if (prefs_common.enable_bgcolor) {
 405                 gtk_text_buffer_create_tag(buffer, "quote0",
 406                                 "foreground-gdk", &quote_colors[0],
 407                                 "paragraph-background-gdk", &quote_bgcolors[0],
 408                                 NULL);
 409                 gtk_text_buffer_create_tag(buffer, "quote1",
 410                                 "foreground-gdk", &quote_colors[1],
 411                                 "paragraph-background-gdk", &quote_bgcolors[1],
 412                                 NULL);
 413                 gtk_text_buffer_create_tag(buffer, "quote2",
 414                                 "foreground-gdk", &quote_colors[2],
 415                                 "paragraph-background-gdk", &quote_bgcolors[2],
 416                                 NULL);
 417         } else {
 418                 gtk_text_buffer_create_tag(buffer, "quote0",
 419                                 "foreground-gdk", &quote_colors[0],
 420                                 NULL);
 421                 gtk_text_buffer_create_tag(buffer, "quote1",
 422                                 "foreground-gdk", &quote_colors[1],
 423                                 NULL);
 424                 gtk_text_buffer_create_tag(buffer, "quote2",
 425                                 "foreground-gdk", &quote_colors[2],
 426                                 NULL);
 427         }
 428         gtk_text_buffer_create_tag(buffer, "emphasis",
 429                         "foreground-gdk", &emphasis_color,
 430                         NULL);
 431         gtk_text_buffer_create_tag(buffer, "signature",
 432                         "foreground-gdk", &signature_color,
 433                         NULL);
 434         tag = gtk_text_buffer_create_tag(buffer, "link",
 435                         "foreground-gdk", &uri_color,
 436                         NULL);
 437         qtag = gtk_text_buffer_create_tag(buffer, "qlink",
 438                         NULL);
 439         gtk_text_buffer_create_tag(buffer, "link-hover",
 440                         "underline", PANGO_UNDERLINE_SINGLE,
 441                         NULL);
 442         g_signal_connect(G_OBJECT(qtag), "event",
 443                          G_CALLBACK(textview_uri_button_pressed), textview);
 444         g_signal_connect(G_OBJECT(tag), "event",
 445                          G_CALLBACK(textview_uri_button_pressed), textview);
 446  }
 447
 448 void textview_init(TextView *textview)
 449 {
 450         if (!hand_cursor)
 451                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 452         if (!text_cursor)
 453                 text_cursor = gdk_cursor_new(GDK_XTERM);
 454         if (!watch_cursor)
 455                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 456
 457         textview_reflect_prefs(textview);
 458         textview_set_all_headers(textview, FALSE);
 459         textview_set_font(textview, NULL);
 460         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 461 }
 462
 463 #if GTK_CHECK_VERSION(2, 8, 0)
 464  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 465         tag = gtk_text_tag_table_lookup(tags, tagname); \
 466         if (tag) \
 467                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 468  }
 469 #else
 470  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 471         tag = gtk_text_tag_table_lookup(tags, tagname); \
 472         if (tag) \
 473                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, NULL); \
 474  }
 475 #endif
 476
 477 static void textview_update_message_colors(TextView *textview)
 478 {
 479         GdkColor black = {0, 0, 0, 0};
 480         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 481         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 482
 483         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 484         GtkTextTag *tag = NULL;
 485
 486         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 487         quote_colors[0] = quote_colors[1] = quote_colors[2] =
 488                 uri_color = emphasis_color = signature_color = black;
 489
 490         if (prefs_common.enable_color) {
 491                 /* grab the quote colors, converting from an int to a GdkColor */
 492                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 493                                                &quote_colors[0]);
 494                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 495                                                &quote_colors[1]);
 496                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 497                                                &quote_colors[2]);
 498                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 499                                                &uri_color);
 500                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 501                                                &signature_color);
 502                 emphasis_color = colored_emphasis;
 503         }
 504         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 505                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_bgcol,
 506                                                    &quote_bgcolors[0]);
 507                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_bgcol,
 508                                                    &quote_bgcolors[1]);
 509                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_bgcol,
 510                                                    &quote_bgcolors[2]);
 511                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 512                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 513                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 514         } else {
 515                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 516                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 517                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 518         }
 519
 520         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 521         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 522         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 523         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 524 }
 525 #undef CHANGE_TAG_COLOR
 526
 527 void textview_reflect_prefs(TextView *textview)
 528 {
 529         textview_set_font(textview, NULL);
 530         textview_update_message_colors(textview);
 531         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 532                                          prefs_common.textview_cursor_visible);
 533 }
 534
 535 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 536                            const gchar *file)
 537 {
 538         textview->loading = TRUE;
 539         textview->stop_loading = FALSE;
 540
 541         textview_clear(textview);
 542
 543         textview_add_parts(textview, mimeinfo);
 544
 545         textview_set_position(textview, 0);
 546
 547         textview->loading = FALSE;
 548         textview->stop_loading = FALSE;
 549 }
 550
 551 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 552 {
 553         START_TIMING("");
 554         g_return_if_fail(mimeinfo != NULL);
 555         g_return_if_fail(fp != NULL);
 556
 557         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 558             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 559                 textview->loading = TRUE;
 560                 textview->stop_loading = FALSE;
 561
 562                 textview_clear(textview);
 563                 textview_add_parts(textview, mimeinfo);
 564
 565                 textview->loading = FALSE;
 566                 textview->stop_loading = FALSE;
 567                 END_TIMING();
 568                 return;
 569         }
 570         textview->loading = TRUE;
 571         textview->stop_loading = FALSE;
 572
 573         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 574                 perror("fseek");
 575
 576         textview_clear(textview);
 577
 578         if (mimeinfo->type == MIMETYPE_MULTIPART)
 579                 textview_add_parts(textview, mimeinfo);
 580         else
 581                 textview_write_body(textview, mimeinfo);
 582
 583         textview->loading = FALSE;
 584         textview->stop_loading = FALSE;
 585         END_TIMING();
 586 }
 587
 588 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 589 {
 590         GtkTextView *text;
 591         GtkTextBuffer *buffer;
 592         GtkTextIter iter, start_iter;
 593         gchar buf[BUFFSIZE];
 594         GPtrArray *headers = NULL;
 595         const gchar *name;
 596         gchar *content_type;
 597         gint charcount;
 598         START_TIMING("");
 599
 600         g_return_if_fail(mimeinfo != NULL);
 601         text = GTK_TEXT_VIEW(textview->text);
 602         buffer = gtk_text_view_get_buffer(text);
 603         charcount = gtk_text_buffer_get_char_count(buffer);
 604         gtk_text_buffer_get_end_iter(buffer, &iter);
 605
 606         if (textview->stop_loading) {
 607                 return;
 608         }
 609         if (mimeinfo->type == MIMETYPE_MULTIPART) {
 610                 END_TIMING();
 611                 return;
 612         }
 613
 614         previousquotelevel = -1;
 615
 616         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 617                 FILE *fp;
 618
 619                 fp = g_fopen(mimeinfo->data.filename, "rb");
 620                 fseek(fp, mimeinfo->offset, SEEK_SET);
 621                 headers = textview_scan_header(textview, fp);
 622                 if (headers) {
 623                         if (charcount > 0)
 624                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 625                         textview_show_header(textview, headers);
 626                         procheader_header_array_destroy(headers);
 627                 }
 628                 fclose(fp);
 629                 END_TIMING();
 630                 return;
 631         }
 632
 633         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 634         content_type = procmime_get_content_type_str(mimeinfo->type,
 635                                                      mimeinfo->subtype);
 636         if (name == NULL)
 637                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 638         if (name != NULL)
 639                 g_snprintf(buf, sizeof(buf), _("[%s  %s (%d bytes)]"),
 640                            name, content_type, mimeinfo->length);
 641         else
 642                 g_snprintf(buf, sizeof(buf), _("[%s (%d bytes)]"),
 643                            content_type, mimeinfo->length);
 644
 645         g_free(content_type);
 646
 647         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 648         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 649             mimeinfo->type != MIMETYPE_TEXT)) {
 650                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 651                 TEXTVIEW_INSERT_LINK(buf, "sc://select_attachment", mimeinfo);
 652                 gtk_text_buffer_insert(buffer, &iter, " \n", -1);
 653                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 654                     prefs_common.inline_img ) {
 655                         GdkPixbuf *pixbuf;
 656                         GError *error = NULL;
 657                         gchar *filename;
 658                         ClickableText *uri;
 659                         gchar *uri_str;
 660                         START_TIMING("inserting image");
 661
 662                         filename = procmime_get_tmp_file_name(mimeinfo);
 663
 664                         if (procmime_get_part(filename, mimeinfo) < 0) {
 665                                 g_warning("Can't get the image file.");
 666                                 g_free(filename);
 667                                 END_TIMING();
 668                                 return;
 669                         }
 670
 671                         if (!prefs_common.resize_img) {
 672                                 pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 673                         } else {
 674                                 gint w, h;
 675                                 gdk_pixbuf_get_file_info(filename, &w, &h);
 676                                 if (w > textview->scrolledwin->allocation.width - 100)
 677                                         pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
 678                                                 textview->scrolledwin->allocation.width - 100,
 679                                                 -1, TRUE, &error);
 680                                 else
 681                                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 682                         }
 683                         if (error != NULL) {
 684                                 g_warning("%s\n", error->message);
 685                                 g_error_free(error);
 686                         }
 687                         if (!pixbuf) {
 688                                 g_warning("Can't load the image.");
 689                                 g_free(filename);
 690                                 END_TIMING();
 691                                 return;
 692                         }
 693
 694                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 695                         if (uri_str) {
 696                                 uri = g_new0(ClickableText, 1);
 697                                 uri->uri = uri_str;
 698                                 uri->start = gtk_text_iter_get_offset(&iter);
 699
 700                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 701
 702                                 uri->end = uri->start + 1;
 703                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 704                                 textview->uri_list =
 705                                         g_slist_prepend(textview->uri_list, uri);
 706
 707                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 708                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 709                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 710                                                 &start_iter, &iter);
 711                         } else {
 712                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 713                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 714                         }
 715
 716                         g_object_unref(pixbuf);
 717                         g_free(filename);
 718                         END_TIMING();
 719                         GTK_EVENTS_FLUSH();
 720                 }
 721         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 722                 if (prefs_common.display_header && (charcount > 0))
 723                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 724
 725                 textview_write_body(textview, mimeinfo);
 726         }
 727         END_TIMING();
 728 }
 729
 730 static void recursive_add_parts(TextView *textview, GNode *node)
 731 {
 732         GNode * iter;
 733         MimeInfo *mimeinfo;
 734         START_TIMING("");
 735
 736         mimeinfo = (MimeInfo *) node->data;
 737
 738         textview_add_part(textview, mimeinfo);
 739
 740         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 741             (mimeinfo->type != MIMETYPE_MESSAGE)) {
 742                 END_TIMING();
 743                 return;
 744         }
 745         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 746                 GNode * prefered_body;
 747                 int prefered_score;
 748
 749                 /*
 750                   text/plain : score 3
 751                   text/ *    : score 2
 752                   other      : score 1
 753                 */
 754                 prefered_body = NULL;
 755                 prefered_score = 0;
 756
 757                 for (iter = g_node_first_child(node) ; iter != NULL ;
 758                      iter = g_node_next_sibling(iter)) {
 759                         int score;
 760                         MimeInfo * submime;
 761
 762                         score = 1;
 763                         submime = (MimeInfo *) iter->data;
 764                         if (submime->type == MIMETYPE_TEXT)
 765                                 score = 2;
 766
 767                         if (submime->subtype != NULL) {
 768                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 769                                         score = 3;
 770                         }
 771
 772                         if (score > prefered_score) {
 773                                 prefered_score = score;
 774                                 prefered_body = iter;
 775                         }
 776                 }
 777
 778                 if (prefered_body != NULL) {
 779                         recursive_add_parts(textview, prefered_body);
 780                 }
 781         }
 782         else {
 783                 for (iter = g_node_first_child(node) ; iter != NULL ;
 784                      iter = g_node_next_sibling(iter)) {
 785                         recursive_add_parts(textview, iter);
 786                 }
 787         }
 788         END_TIMING();
 789 }
 790
 791 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 792 {
 793         g_return_if_fail(mimeinfo != NULL);
 794
 795         recursive_add_parts(textview, mimeinfo->node);
 796 }
 797
 798 void textview_show_error(TextView *textview)
 799 {
 800         GtkTextView *text;
 801         GtkTextBuffer *buffer;
 802         GtkTextIter iter;
 803
 804         textview_set_font(textview, NULL);
 805         textview_clear(textview);
 806
 807         text = GTK_TEXT_VIEW(textview->text);
 808         buffer = gtk_text_view_get_buffer(text);
 809         gtk_text_buffer_get_start_iter(buffer, &iter);
 810
 811         TEXTVIEW_INSERT(_("\n"
 812                       "  This message can't be displayed.\n"
 813                       "  This is probably due to a network error.\n"
 814                       "\n"
 815                       "  Use "));
 816         TEXTVIEW_INSERT_LINK(_("'View Log'"), "sc://view_log", NULL);
 817         TEXTVIEW_INSERT(_(" in the Tools menu for more information."));
 818         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 819
 820 }
 821
 822 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 823 {
 824         GtkTextView *text;
 825         GtkTextBuffer *buffer;
 826         GtkTextIter iter;
 827
 828         if (!partinfo) return;
 829
 830         textview_set_font(textview, NULL);
 831         textview_clear(textview);
 832
 833         text = GTK_TEXT_VIEW(textview->text);
 834         buffer = gtk_text_view_get_buffer(text);
 835         gtk_text_buffer_get_start_iter(buffer, &iter);
 836
 837         TEXTVIEW_INSERT("\n");
 838         TEXTVIEW_INSERT(_("  The following can be performed on this part by\n"));
 839         TEXTVIEW_INSERT(_("  right-clicking the icon or list item:\n"));
 840
 841         TEXTVIEW_INSERT(_("     - To save, select "));
 842         TEXTVIEW_INSERT_LINK(_("'Save as...'"), "sc://save_as", NULL);
 843         TEXTVIEW_INSERT(_(" (Shortcut key: 'y')\n"));
 844         TEXTVIEW_INSERT(_("     - To display as text, select "));
 845         TEXTVIEW_INSERT_LINK(_("'Display as text'"), "sc://display_as_text", NULL);
 846         TEXTVIEW_INSERT(_(" (Shortcut key: 't')\n"));
 847         TEXTVIEW_INSERT(_("     - To open with an external program, select "));
 848         TEXTVIEW_INSERT_LINK(_("'Open'"), "sc://open", NULL);
 849         TEXTVIEW_INSERT(_(" (Shortcut key: 'l')\n"));
 850         TEXTVIEW_INSERT(_("       (alternately double-click, or click the middle "));
 851         TEXTVIEW_INSERT(_("mouse button)\n"));
 852         TEXTVIEW_INSERT(_("     - Or use "));
 853         TEXTVIEW_INSERT_LINK(_("'Open with...'"), "sc://open_with", NULL);
 854         TEXTVIEW_INSERT(_(" (Shortcut key: 'o')\n"));
 855         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 856 }
 857
 858 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 859 {
 860         FILE *tmpfp;
 861         gchar buf[BUFFSIZE];
 862         CodeConverter *conv;
 863         const gchar *charset, *p, *cmd;
 864         GSList *cur;
 865         int lines = 0;
 866
 867         if (textview->messageview->forced_charset)
 868                 charset = textview->messageview->forced_charset;
 869         else
 870                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 871
 872         textview_set_font(textview, charset);
 873
 874         conv = conv_code_converter_new(charset);
 875
 876         procmime_force_encoding(textview->messageview->forced_encoding);
 877
 878         textview->is_in_signature = FALSE;
 879
 880         procmime_decode_content(mimeinfo);
 881
 882         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 883             prefs_common.render_html) {
 884                 gchar *filename;
 885
 886                 filename = procmime_get_tmp_file_name(mimeinfo);
 887                 if (procmime_get_part(filename, mimeinfo) == 0) {
 888                         tmpfp = g_fopen(filename, "rb");
 889                         textview_show_html(textview, tmpfp, conv);
 890                         fclose(tmpfp);
 891                         g_unlink(filename);
 892                 }
 893                 g_free(filename);
 894         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 895                 gchar *filename;
 896
 897                 filename = procmime_get_tmp_file_name(mimeinfo);
 898                 if (procmime_get_part(filename, mimeinfo) == 0) {
 899                         tmpfp = g_fopen(filename, "rb");
 900                         textview_show_ertf(textview, tmpfp, conv);
 901                         fclose(tmpfp);
 902                         g_unlink(filename);
 903                 }
 904                 g_free(filename);
 905 #ifndef G_OS_WIN32
 906         } else if ( g_ascii_strcasecmp(mimeinfo->subtype, "plain") &&
 907                    (cmd = prefs_common.mime_textviewer) && *cmd &&
 908                    (p = strchr(cmd, '%')) && *(p + 1) == 's') {
 909                 int pid, pfd[2];
 910                 const gchar *fname;
 911
 912                 fname  = procmime_get_tmp_file_name(mimeinfo);
 913                 if (procmime_get_part(fname, mimeinfo)) goto textview_default;
 914
 915                 g_snprintf(buf, sizeof(buf), cmd, fname);
 916                 debug_print("Viewing text content of type: %s (length: %d) "
 917                         "using %s\n", mimeinfo->subtype, mimeinfo->length, buf);
 918
 919                 if (pipe(pfd) < 0) {
 920                         g_snprintf(buf, sizeof(buf),
 921                                 "pipe failed for textview\n\n%s\n", strerror(errno));
 922                         textview_write_line(textview, buf, conv, TRUE);
 923                         goto textview_default;
 924                 }
 925                 pid = fork();
 926                 if (pid < 0) {
 927                         g_snprintf(buf, sizeof(buf),
 928                                 "fork failed for textview\n\n%s\n", strerror(errno));
 929                         textview_write_line(textview, buf, conv, TRUE);
 930                         close(pfd[0]);
 931                         close(pfd[1]);
 932                         goto textview_default;
 933                 }
 934                 if (pid == 0) { /* child */
 935                         int rc;
 936                         gchar **argv;
 937                         argv = strsplit_with_quote(buf, " ", 0);
 938                         close(1);
 939                         close(pfd[0]);
 940                         dup(pfd[1]);
 941                         rc = execvp(argv[0], argv);
 942                         close(pfd[1]);
 943                         printf (_("The command to view attachment "
 944                                 "as text failed:\n"
 945                                 "    %s\n"
 946                                 "Exit code %d\n"), buf, rc);
 947                         exit(255);
 948                 }
 949                 close(pfd[1]);
 950                 tmpfp = fdopen(pfd[0], "rb");
 951                 while (fgets(buf, sizeof(buf), tmpfp)) {
 952                         textview_write_line(textview, buf, conv, TRUE);
 953
 954                         lines++;
 955                         if (lines % 500 == 0)
 956                                 GTK_EVENTS_FLUSH();
 957                         if (textview->stop_loading) {
 958                                 fclose(tmpfp);
 959                                 waitpid(pid, pfd, 0);
 960                                 unlink(fname);
 961                                 return;
 962                         }
 963                 }
 964
 965                 fclose(tmpfp);
 966                 waitpid(pid, pfd, 0);
 967                 unlink(fname);
 968 #endif
 969         } else {
 970 textview_default:
 971                 lines = 0;
 972                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 973                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 974                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 975                 while ((ftell(tmpfp) < mimeinfo->offset + mimeinfo->length) &&
 976                        (fgets(buf, sizeof(buf), tmpfp) != NULL)) {
 977                         textview_write_line(textview, buf, conv, TRUE);
 978                         lines++;
 979                         if (lines % 500 == 0)
 980                                 GTK_EVENTS_FLUSH();
 981                         if (textview->stop_loading) {
 982                                 fclose(tmpfp);
 983                                 return;
 984                         }
 985                 }
 986                 fclose(tmpfp);
 987         }
 988
 989         conv_code_converter_destroy(conv);
 990         procmime_force_encoding(0);
 991
 992         lines = 0;
 993         textview->uri_list = g_slist_reverse(textview->uri_list);
 994         for (cur = textview->uri_list; cur; cur = cur->next) {
 995                 ClickableText *uri = (ClickableText *)cur->data;
 996                 if (!uri->is_quote)
 997                         continue;
 998                 if (!prefs_common.hide_quotes ||
 999                     uri->quote_level+1 < prefs_common.hide_quotes) {
1000                         textview_toggle_quote(textview, cur, uri, TRUE);
1001                         lines++;
1002                         if (lines % 500 == 0)
1003                                 GTK_EVENTS_FLUSH();
1004                         if (textview->stop_loading) {
1005                                 return;
1006                         }
1007                 }
1008         }
1009 }
1010
1011 static void textview_show_html(TextView *textview, FILE *fp,
1012                                CodeConverter *conv)
1013 {
1014         SC_HTMLParser *parser;
1015         gchar *str;
1016         gint lines = 0;
1017
1018         parser = sc_html_parser_new(fp, conv);
1019         g_return_if_fail(parser != NULL);
1020
1021         while ((str = sc_html_parse(parser)) != NULL) {
1022                 if (parser->state == SC_HTML_HREF) {
1023                         /* first time : get and copy the URL */
1024                         if (parser->href == NULL) {
1025                                 /* ALF - the claws html parser returns an empty string,
1026                                  * if still inside an <a>, but already parsed past HREF */
1027                                 str = strtok(str, " ");
1028                                 if (str) {
1029                                         while (str && *str && g_ascii_isspace(*str))
1030                                                 str++;
1031                                         parser->href = g_strdup(str);
1032                                         /* the URL may (or not) be followed by the
1033                                          * referenced text */
1034                                         str = strtok(NULL, "");
1035                                 }
1036                         }
1037                         if (str != NULL)
1038                                 textview_write_link(textview, str, parser->href, NULL);
1039                 } else
1040                         textview_write_line(textview, str, NULL, FALSE);
1041                 lines++;
1042                 if (lines % 500 == 0)
1043                         GTK_EVENTS_FLUSH();
1044                 if (textview->stop_loading) {
1045                         return;
1046                 }
1047         }
1048         textview_write_line(textview, "\n", NULL, FALSE);
1049         sc_html_parser_destroy(parser);
1050 }
1051
1052 static void textview_show_ertf(TextView *textview, FILE *fp,
1053                                CodeConverter *conv)
1054 {
1055         ERTFParser *parser;
1056         gchar *str;
1057         gint lines = 0;
1058
1059         parser = ertf_parser_new(fp, conv);
1060         g_return_if_fail(parser != NULL);
1061
1062         while ((str = ertf_parse(parser)) != NULL) {
1063                 textview_write_line(textview, str, NULL, FALSE);
1064                 lines++;
1065                 if (lines % 500 == 0)
1066                         GTK_EVENTS_FLUSH();
1067                 if (textview->stop_loading) {
1068                         return;
1069                 }
1070         }
1071
1072         ertf_parser_destroy(parser);
1073 }
1074
1075 #define ADD_TXT_POS(bp_, ep_, pti_) \
1076         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1077                 last = last->next; \
1078                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1079                 last->next = NULL; \
1080         } else { \
1081                 g_warning("alloc error scanning URIs\n"); \
1082                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
1083                                                          linebuf, -1, \
1084                                                          fg_tag, NULL); \
1085                 return; \
1086         }
1087
1088 #define ADD_TXT_POS_LATER(bp_, ep_, pti_) \
1089         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1090                 last = last->next; \
1091                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1092                 last->next = NULL; \
1093         } else { \
1094                 g_warning("alloc error scanning URIs\n"); \
1095         }
1096
1097 /* textview_make_clickable_parts() - colorizes clickable parts */
1098 static void textview_make_clickable_parts(TextView *textview,
1099                                           const gchar *fg_tag,
1100                                           const gchar *uri_tag,
1101                                           const gchar *linebuf,
1102                                           gboolean hdr)
1103 {
1104         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1105         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1106         GtkTextIter iter;
1107         gchar *mybuf = g_strdup(linebuf);
1108
1109         /* parse table - in order of priority */
1110         struct table {
1111                 const gchar *needle; /* token */
1112
1113                 /* token search function */
1114                 gchar    *(*search)     (const gchar *haystack,
1115                                          const gchar *needle);
1116                 /* part parsing function */
1117                 gboolean  (*parse)      (const gchar *start,
1118                                          const gchar *scanpos,
1119                                          const gchar **bp_,
1120                                          const gchar **ep_,
1121                                          gboolean hdr);
1122                 /* part to URI function */
1123                 gchar    *(*build_uri)  (const gchar *bp,
1124                                          const gchar *ep);
1125         };
1126
1127         static struct table parser[] = {
1128                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1129                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1130                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1131                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1132                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1133                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1134                 {"@",        strcasestr, get_email_part, make_email_string}
1135         };
1136         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1137
1138         gint  n;
1139         const gchar *walk, *bp, *ep;
1140
1141         struct txtpos {
1142                 const gchar     *bp, *ep;       /* text position */
1143                 gint             pti;           /* index in parse table */
1144                 struct txtpos   *next;          /* next */
1145         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1146
1147         if (!g_utf8_validate(linebuf, -1, NULL)) {
1148                 g_free(mybuf);
1149                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1150                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1151         }
1152
1153         gtk_text_buffer_get_end_iter(buffer, &iter);
1154
1155         /* parse for clickable parts, and build a list of begin and end positions  */
1156         for (walk = mybuf, n = 0;;) {
1157                 gint last_index = PARSE_ELEMS;
1158                 gchar *scanpos = NULL;
1159
1160                 /* FIXME: this looks phony. scanning for anything in the parse table */
1161                 for (n = 0; n < PARSE_ELEMS; n++) {
1162                         gchar *tmp;
1163
1164                         tmp = parser[n].search(walk, parser[n].needle);
1165                         if (tmp) {
1166                                 if (scanpos == NULL || tmp < scanpos) {
1167                                         scanpos = tmp;
1168                                         last_index = n;
1169                                 }
1170                         }
1171                 }
1172
1173                 if (scanpos) {
1174                         /* check if URI can be parsed */
1175                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1176                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1177                                         ADD_TXT_POS(bp, ep, last_index);
1178                                         walk = ep;
1179                         } else
1180                                 walk = scanpos +
1181                                         strlen(parser[last_index].needle);
1182                 } else
1183                         break;
1184         }
1185
1186         /* colorize this line */
1187         if (head.next) {
1188                 const gchar *normal_text = mybuf;
1189
1190                 /* insert URIs */
1191                 for (last = head.next; last != NULL;
1192                      normal_text = last->ep, last = last->next) {
1193                         ClickableText *uri;
1194                         uri = g_new0(ClickableText, 1);
1195                         if (last->bp - normal_text > 0)
1196                                 gtk_text_buffer_insert_with_tags_by_name
1197                                         (buffer, &iter,
1198                                          normal_text,
1199                                          last->bp - normal_text,
1200                                          fg_tag, NULL);
1201                         uri->uri = parser[last->pti].build_uri(last->bp,
1202                                                                last->ep);
1203                         uri->start = gtk_text_iter_get_offset(&iter);
1204                         gtk_text_buffer_insert_with_tags_by_name
1205                                 (buffer, &iter, last->bp, last->ep - last->bp,
1206                                  uri_tag, fg_tag, NULL);
1207                         uri->end = gtk_text_iter_get_offset(&iter);
1208                         uri->filename = NULL;
1209                         textview->uri_list =
1210                                 g_slist_prepend(textview->uri_list, uri);
1211                 }
1212
1213                 if (*normal_text)
1214                         gtk_text_buffer_insert_with_tags_by_name
1215                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1216         } else {
1217                 gtk_text_buffer_insert_with_tags_by_name
1218                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1219         }
1220         g_free(mybuf);
1221 }
1222
1223 /* textview_make_clickable_parts() - colorizes clickable parts */
1224 static void textview_make_clickable_parts_later(TextView *textview,
1225                                           gint start, gint end)
1226 {
1227         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1228         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1229         GtkTextIter start_iter, end_iter;
1230         gchar *mybuf;
1231         gint offset = 0;
1232         /* parse table - in order of priority */
1233         struct table {
1234                 const gchar *needle; /* token */
1235
1236                 /* token search function */
1237                 gchar    *(*search)     (const gchar *haystack,
1238                                          const gchar *needle);
1239                 /* part parsing function */
1240                 gboolean  (*parse)      (const gchar *start,
1241                                          const gchar *scanpos,
1242                                          const gchar **bp_,
1243                                          const gchar **ep_,
1244                                          gboolean hdr);
1245                 /* part to URI function */
1246                 gchar    *(*build_uri)  (const gchar *bp,
1247                                          const gchar *ep);
1248         };
1249
1250         static struct table parser[] = {
1251                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1252                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1253                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1254                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1255                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1256                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1257                 {"@",        strcasestr, get_email_part, make_email_string}
1258         };
1259         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1260
1261         gint  n;
1262         const gchar *walk, *bp, *ep;
1263
1264         struct txtpos {
1265                 const gchar     *bp, *ep;       /* text position */
1266                 gint             pti;           /* index in parse table */
1267                 struct txtpos   *next;          /* next */
1268         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1269
1270         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start);
1271         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end);
1272         mybuf = gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
1273         offset = gtk_text_iter_get_offset(&start_iter);
1274
1275         /* parse for clickable parts, and build a list of begin and end positions  */
1276         for (walk = mybuf, n = 0;;) {
1277                 gint last_index = PARSE_ELEMS;
1278                 gchar *scanpos = NULL;
1279
1280                 /* FIXME: this looks phony. scanning for anything in the parse table */
1281                 for (n = 0; n < PARSE_ELEMS; n++) {
1282                         gchar *tmp;
1283
1284                         tmp = parser[n].search(walk, parser[n].needle);
1285                         if (tmp) {
1286                                 if (scanpos == NULL || tmp < scanpos) {
1287                                         scanpos = tmp;
1288                                         last_index = n;
1289                                 }
1290                         }
1291                 }
1292
1293                 if (scanpos) {
1294                         /* check if URI can be parsed */
1295                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, FALSE)
1296                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1297                                         ADD_TXT_POS_LATER(bp, ep, last_index);
1298                                         walk = ep;
1299                         } else
1300                                 walk = scanpos +
1301                                         strlen(parser[last_index].needle);
1302                 } else
1303                         break;
1304         }
1305
1306         /* colorize this line */
1307         if (head.next) {
1308                 /* insert URIs */
1309                 for (last = head.next; last != NULL; last = last->next) {
1310                         ClickableText *uri;
1311                         gint start_offset, end_offset;
1312                         gchar *tmp_str;
1313                         gchar old_char;
1314                         uri = g_new0(ClickableText, 1);
1315                         uri->uri = parser[last->pti].build_uri(last->bp,
1316                                                                last->ep);
1317
1318                         tmp_str = mybuf;
1319                         old_char = tmp_str[last->ep - mybuf];
1320                         tmp_str[last->ep - mybuf] = '\0';
1321                         end_offset = g_utf8_strlen(tmp_str, -1);
1322                         tmp_str[last->ep - mybuf] = old_char;
1323
1324                         old_char = tmp_str[last->bp - mybuf];
1325                         tmp_str[last->bp - mybuf] = '\0';
1326                         start_offset = g_utf8_strlen(tmp_str, -1);
1327                         tmp_str[last->bp - mybuf] = old_char;
1328
1329                         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start_offset + offset);
1330                         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end_offset + offset);
1331
1332                         uri->start = gtk_text_iter_get_offset(&start_iter);
1333
1334                         gtk_text_buffer_apply_tag_by_name(buffer, "link", &start_iter, &end_iter);
1335
1336                         uri->end = gtk_text_iter_get_offset(&end_iter);
1337                         uri->filename = NULL;
1338                         textview->uri_list =
1339                                 g_slist_prepend(textview->uri_list, uri);
1340                 }
1341         }
1342
1343         g_free(mybuf);
1344 }
1345
1346 #undef ADD_TXT_POS
1347
1348 static void textview_write_line(TextView *textview, const gchar *str,
1349                                 CodeConverter *conv, gboolean do_quote_folding)
1350 {
1351         GtkTextView *text;
1352         GtkTextBuffer *buffer;
1353         GtkTextIter iter;
1354         gchar buf[BUFFSIZE];
1355         gchar *fg_color;
1356         gint quotelevel = -1, real_quotelevel = -1;
1357         gchar quote_tag_str[10];
1358
1359         text = GTK_TEXT_VIEW(textview->text);
1360         buffer = gtk_text_view_get_buffer(text);
1361         gtk_text_buffer_get_end_iter(buffer, &iter);
1362
1363         if (!conv)
1364                 strncpy2(buf, str, sizeof(buf));
1365         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1366                 conv_localetodisp(buf, sizeof(buf), str);
1367
1368         strcrchomp(buf);
1369         fg_color = NULL;
1370
1371         /* change color of quotation
1372            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1373            Up to 3 levels of quotations are detected, and each
1374            level is colored using a different color. */
1375         if (prefs_common.enable_color
1376             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1377                 real_quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1378                 quotelevel = real_quotelevel;
1379                 /* set up the correct foreground color */
1380                 if (quotelevel > 2) {
1381                         /* recycle colors */
1382                         if (prefs_common.recycle_quote_colors)
1383                                 quotelevel %= 3;
1384                         else
1385                                 quotelevel = 2;
1386                 }
1387         }
1388
1389         if (quotelevel == -1)
1390                 fg_color = NULL;
1391         else {
1392                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1393                            "quote%d", quotelevel);
1394                 fg_color = quote_tag_str;
1395         }
1396
1397         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1398                 fg_color = "signature";
1399                 textview->is_in_signature = TRUE;
1400         }
1401
1402         if (real_quotelevel > -1 && do_quote_folding) {
1403                 if (!g_utf8_validate(buf, -1, NULL)) {
1404                         gchar *utf8buf = NULL;
1405                         utf8buf = g_malloc(BUFFSIZE);
1406                         conv_localetodisp(utf8buf, BUFFSIZE, buf);
1407                         strncpy2(buf, utf8buf, BUFFSIZE-1);
1408                         g_free(utf8buf);
1409                 }
1410 do_quote:
1411                 if ( previousquotelevel != real_quotelevel ) {
1412                         ClickableText *uri;
1413                         uri = g_new0(ClickableText, 1);
1414                         uri->uri = g_strdup("");
1415                         uri->data = g_strdup(buf);
1416                         uri->start = gtk_text_iter_get_offset(&iter);
1417                         uri->is_quote = TRUE;
1418                         uri->quote_level = real_quotelevel;
1419                         uri->fg_color = g_strdup(fg_color);
1420
1421                         gtk_text_buffer_insert_with_tags_by_name
1422                                         (buffer, &iter, " [...]", -1,
1423                                          "qlink", fg_color, NULL);
1424                         uri->end = gtk_text_iter_get_offset(&iter);
1425                         gtk_text_buffer_insert(buffer, &iter, "  \n", -1);
1426
1427                         uri->filename = NULL;
1428                         textview->uri_list =
1429                                 g_slist_prepend(textview->uri_list, uri);
1430
1431                         previousquotelevel = real_quotelevel;
1432                 } else {
1433                         GSList *last = textview->uri_list;
1434                         ClickableText *lasturi = (ClickableText *)last->data;
1435                         gint e_len = 0, n_len = 0;
1436
1437                         if (lasturi->is_quote == FALSE) {
1438                                 previousquotelevel = -1;
1439                                 goto do_quote;
1440                         }
1441                         e_len = lasturi->data ? strlen(lasturi->data):0;
1442                         n_len = strlen(buf);
1443                         lasturi->data = g_realloc((gchar *)lasturi->data, e_len + n_len + 1);
1444                         strcpy((gchar *)lasturi->data + e_len, buf);
1445                         *((gchar *)lasturi->data + e_len + n_len) = '\0';
1446                 }
1447         } else {
1448                 textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1449                 previousquotelevel = -1;
1450         }
1451 }
1452
1453 void textview_write_link(TextView *textview, const gchar *str,
1454                          const gchar *uri, CodeConverter *conv)
1455 {
1456         GdkColor *link_color = NULL;
1457         GtkTextView *text;
1458         GtkTextBuffer *buffer;
1459         GtkTextIter iter;
1460         gchar buf[BUFFSIZE];
1461         gchar *bufp;
1462         ClickableText *r_uri;
1463
1464         if (!str || *str == '\0')
1465                 return;
1466         if (!uri)
1467                 return;
1468
1469         while (uri && *uri && g_ascii_isspace(*uri))
1470                 uri++;
1471
1472         text = GTK_TEXT_VIEW(textview->text);
1473         buffer = gtk_text_view_get_buffer(text);
1474         gtk_text_buffer_get_end_iter(buffer, &iter);
1475
1476         if (!conv)
1477                 strncpy2(buf, str, sizeof(buf));
1478         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1479                 conv_utf8todisp(buf, sizeof(buf), str);
1480
1481         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1482                 return;
1483
1484         strcrchomp(buf);
1485
1486         gtk_text_buffer_get_end_iter(buffer, &iter);
1487         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1488                 gunichar ch;
1489
1490                 ch = g_utf8_get_char(bufp);
1491                 if (!g_unichar_isspace(ch))
1492                         break;
1493         }
1494         if (bufp > buf)
1495                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1496
1497         if (prefs_common.enable_color) {
1498                 link_color = &uri_color;
1499         }
1500         r_uri = g_new0(ClickableText, 1);
1501         r_uri->uri = g_strdup(uri);
1502         r_uri->start = gtk_text_iter_get_offset(&iter);
1503         gtk_text_buffer_insert_with_tags_by_name
1504                 (buffer, &iter, bufp, -1, "link", NULL);
1505         r_uri->end = gtk_text_iter_get_offset(&iter);
1506         r_uri->filename = NULL;
1507         textview->uri_list = g_slist_prepend(textview->uri_list, r_uri);
1508 }
1509
1510 static void textview_set_cursor(GdkWindow *window, GdkCursor *cursor)
1511 {
1512         if (GDK_IS_WINDOW(window))
1513                 gdk_window_set_cursor(window, cursor);
1514 }
1515 void textview_clear(TextView *textview)
1516 {
1517         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1518         GtkTextBuffer *buffer;
1519         GdkWindow *window = gtk_text_view_get_window(text,
1520                                 GTK_TEXT_WINDOW_TEXT);
1521
1522         buffer = gtk_text_view_get_buffer(text);
1523         gtk_text_buffer_set_text(buffer, "", -1);
1524
1525         TEXTVIEW_STATUSBAR_POP(textview);
1526         textview_uri_list_remove_all(textview->uri_list);
1527         textview->uri_list = NULL;
1528         textview->uri_hover = NULL;
1529
1530         textview->body_pos = 0;
1531         if (textview->image)
1532                 gtk_widget_destroy(textview->image);
1533         textview->image = NULL;
1534
1535         if (textview->messageview->mainwin->cursor_count == 0) {
1536                 textview_set_cursor(window, text_cursor);
1537         } else {
1538                 textview_set_cursor(window, watch_cursor);
1539         }
1540 }
1541
1542 void textview_destroy(TextView *textview)
1543 {
1544         GtkTextBuffer *buffer;
1545         GtkClipboard *clipboard;
1546
1547         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1548         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
1549         gtk_text_buffer_remove_selection_clipboard(buffer, clipboard);
1550
1551         textview_uri_list_remove_all(textview->uri_list);
1552         textview->uri_list = NULL;
1553
1554         g_free(textview);
1555 }
1556
1557 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1558 {
1559         textview->show_all_headers = all_headers;
1560 }
1561
1562 #define CHANGE_TAG_FONT(tagname, font) { \
1563         tag = gtk_text_tag_table_lookup(tags, tagname); \
1564         if (tag) \
1565                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1566 }
1567
1568 void textview_set_font(TextView *textview, const gchar *codeset)
1569 {
1570         GtkTextTag *tag;
1571         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1572         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1573
1574         if (NORMAL_FONT) {
1575                 PangoFontDescription *font_desc, *bold_font_desc;
1576                 font_desc = pango_font_description_from_string
1577                                                 (NORMAL_FONT);
1578                 bold_font_desc = pango_font_description_from_string
1579                                                 (NORMAL_FONT);
1580                 if (font_desc) {
1581                         gtk_widget_modify_font(textview->text, font_desc);
1582                         CHANGE_TAG_FONT("header", font_desc);
1583                         pango_font_description_free(font_desc);
1584                 }
1585                 if (bold_font_desc) {
1586                         pango_font_description_set_weight
1587                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1588                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1589                         pango_font_description_free(bold_font_desc);
1590                 }
1591         }
1592
1593         if (prefs_common.textfont) {
1594                 PangoFontDescription *font_desc;
1595
1596                 font_desc = pango_font_description_from_string
1597                                                 (prefs_common.textfont);
1598                 if (font_desc) {
1599                         gtk_widget_modify_font(textview->text, font_desc);
1600                         pango_font_description_free(font_desc);
1601                 }
1602         }
1603         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1604                                              prefs_common.line_space / 2);
1605         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1606                                              prefs_common.line_space / 2);
1607 }
1608
1609 void textview_set_text(TextView *textview, const gchar *text)
1610 {
1611         GtkTextView *view;
1612         GtkTextBuffer *buffer;
1613
1614         g_return_if_fail(textview != NULL);
1615         g_return_if_fail(text != NULL);
1616
1617         textview_clear(textview);
1618
1619         view = GTK_TEXT_VIEW(textview->text);
1620         buffer = gtk_text_view_get_buffer(view);
1621         gtk_text_buffer_set_text(buffer, text, strlen(text));
1622 }
1623
1624 enum
1625 {
1626         H_DATE          = 0,
1627         H_FROM          = 1,
1628         H_TO            = 2,
1629         H_NEWSGROUPS    = 3,
1630         H_SUBJECT       = 4,
1631         H_CC            = 5,
1632         H_REPLY_TO      = 6,
1633         H_FOLLOWUP_TO   = 7,
1634         H_X_MAILER      = 8,
1635         H_X_NEWSREADER  = 9,
1636         H_USER_AGENT    = 10,
1637         H_ORGANIZATION  = 11,
1638 };
1639
1640 void textview_set_position(TextView *textview, gint pos)
1641 {
1642         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1643
1644         gtkut_text_view_set_position(text, pos);
1645 }
1646
1647 static gboolean header_is_internal(Header *header)
1648 {
1649         const gchar *internal_hdrs[] =
1650                 {"AF:", "NF:", "PS:", "SRH:", "SFN:", "DSR:", "MID:",
1651                  "CFG:", "PT:", "S:", "RQ:", "SSV:", "NSV:", "SSH:",
1652                  "R:", "MAID:", "SCF:", "RMID:", "FMID:", "NAID:",
1653                  "X-Sylpheed-Account-Id:", "X-Sylpheed-Sign:", "X-Sylpheed-Encrypt:",
1654                  "X-Sylpheed-Privacy-System:", "X-Sylpheed-End-Special-Headers:",
1655                  NULL};
1656         int i;
1657
1658         for (i = 0; internal_hdrs[i]; i++) {
1659                 if (!strcmp(header->name, internal_hdrs[i]))
1660                         return TRUE;
1661         }
1662         return FALSE;
1663 }
1664
1665 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1666 {
1667         gchar buf[BUFFSIZE];
1668         GPtrArray *headers, *sorted_headers;
1669         GSList *disphdr_list;
1670         Header *header;
1671         gint i;
1672
1673         g_return_val_if_fail(fp != NULL, NULL);
1674
1675         if (textview->show_all_headers) {
1676                 headers = procheader_get_header_array_asis(fp);
1677                 sorted_headers = g_ptr_array_new();
1678                 for (i = 0; i < headers->len; i++) {
1679                         header = g_ptr_array_index(headers, i);
1680                         if (!header_is_internal(header))
1681                                 g_ptr_array_add(sorted_headers, header);
1682                         else
1683                                 procheader_header_free(header);
1684                 }
1685                 g_ptr_array_free(headers, TRUE);
1686                 return sorted_headers;
1687         }
1688
1689         if (!prefs_common.display_header) {
1690                 while (fgets(buf, sizeof(buf), fp) != NULL)
1691                         if (buf[0] == '\r' || buf[0] == '\n') break;
1692                 return NULL;
1693         }
1694
1695         headers = procheader_get_header_array_asis(fp);
1696
1697         sorted_headers = g_ptr_array_new();
1698
1699         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1700              disphdr_list = disphdr_list->next) {
1701                 DisplayHeaderProp *dp =
1702                         (DisplayHeaderProp *)disphdr_list->data;
1703
1704                 for (i = 0; i < headers->len; i++) {
1705                         header = g_ptr_array_index(headers, i);
1706
1707                         if (procheader_headername_equal(header->name,
1708                                                         dp->name)) {
1709                                 if (dp->hidden)
1710                                         procheader_header_free(header);
1711                                 else
1712                                         g_ptr_array_add(sorted_headers, header);
1713
1714                                 g_ptr_array_remove_index(headers, i);
1715                                 i--;
1716                         }
1717                 }
1718         }
1719
1720         if (prefs_common.show_other_header) {
1721                 for (i = 0; i < headers->len; i++) {
1722                         header = g_ptr_array_index(headers, i);
1723                         if (!header_is_internal(header)) {
1724                                 g_ptr_array_add(sorted_headers, header);
1725                         } else {
1726                                 procheader_header_free(header);
1727                         }
1728                 }
1729                 g_ptr_array_free(headers, TRUE);
1730         } else
1731                 procheader_header_array_destroy(headers);
1732
1733
1734         return sorted_headers;
1735 }
1736
1737 static void textview_show_face(TextView *textview)
1738 {
1739         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1740         MsgInfo *msginfo = textview->messageview->msginfo;
1741         int x = 0;
1742
1743         if (prefs_common.display_header_pane
1744         ||  !prefs_common.display_xface)
1745                 goto bail;
1746
1747         if (!msginfo->extradata || !msginfo->extradata->face) {
1748                 goto bail;
1749         }
1750
1751         if (textview->image)
1752                 gtk_widget_destroy(textview->image);
1753
1754         textview->image = face_get_from_header(msginfo->extradata->face);
1755         g_return_if_fail(textview->image != NULL);
1756
1757         gtk_widget_show(textview->image);
1758
1759         x = textview->text->allocation.width - WIDTH -5;
1760
1761         gtk_text_view_add_child_in_window(text, textview->image,
1762                 GTK_TEXT_WINDOW_TEXT, x, 5);
1763
1764         gtk_widget_show_all(textview->text);
1765
1766
1767         return;
1768 bail:
1769         if (textview->image)
1770                 gtk_widget_destroy(textview->image);
1771         textview->image = NULL;
1772 }
1773
1774 void textview_show_icon(TextView *textview, const gchar *stock_id)
1775 {
1776         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1777         int x = 0;
1778
1779         if (textview->image)
1780                 gtk_widget_destroy(textview->image);
1781
1782         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
1783         g_return_if_fail(textview->image != NULL);
1784
1785         gtk_widget_show(textview->image);
1786
1787         x = textview->text->allocation.width - WIDTH -5;
1788
1789         gtk_text_view_add_child_in_window(text, textview->image,
1790                 GTK_TEXT_WINDOW_TEXT, x, 5);
1791
1792         gtk_widget_show_all(textview->text);
1793
1794
1795         return;
1796 }
1797
1798 #if HAVE_LIBCOMPFACE
1799 static void textview_show_xface(TextView *textview)
1800 {
1801         MsgInfo *msginfo = textview->messageview->msginfo;
1802         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1803         int x = 0;
1804         GdkWindow *window = NULL;
1805
1806         if (prefs_common.display_header_pane
1807         ||  !prefs_common.display_xface)
1808                 goto bail;
1809
1810         if (!msginfo || !msginfo->extradata)
1811                 goto bail;
1812
1813         if (msginfo->extradata->face)
1814                 return;
1815
1816         if (!msginfo->extradata->xface || strlen(msginfo->extradata->xface) < 5) {
1817                 goto bail;
1818         }
1819
1820         if (textview->image)
1821                 gtk_widget_destroy(textview->image);
1822
1823         window = mainwindow_get_mainwindow() ?
1824                         mainwindow_get_mainwindow()->window->window :
1825                         textview->text->window;
1826         textview->image = xface_get_from_header(msginfo->extradata->xface,
1827                                 &textview->text->style->white,
1828                                 window);
1829         g_return_if_fail(textview->image != NULL);
1830
1831         gtk_widget_show(textview->image);
1832
1833         x = textview->text->allocation.width - WIDTH -5;
1834
1835         gtk_text_view_add_child_in_window(text, textview->image,
1836                 GTK_TEXT_WINDOW_TEXT, x, 5);
1837
1838         gtk_widget_show_all(textview->text);
1839
1840         return;
1841 bail:
1842         if (textview->image)
1843                 gtk_widget_destroy(textview->image);
1844         textview->image = NULL;
1845
1846 }
1847 #endif
1848
1849 static void textview_show_header(TextView *textview, GPtrArray *headers)
1850 {
1851         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1852         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1853         GtkTextIter iter;
1854         Header *header;
1855         gint i;
1856
1857         g_return_if_fail(headers != NULL);
1858
1859         for (i = 0; i < headers->len; i++) {
1860                 header = g_ptr_array_index(headers, i);
1861                 g_return_if_fail(header->name != NULL);
1862
1863                 gtk_text_buffer_get_end_iter (buffer, &iter);
1864                 if(prefs_common.trans_hdr == TRUE) {
1865                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
1866                         gchar *trans_hdr = gettext(hdr);
1867                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1868                                 &iter, trans_hdr, -1,
1869                                 "header_title", "header", NULL);
1870                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1871                                 &iter, ":", 1, "header_title", "header", NULL);
1872                         g_free(hdr);
1873                 } else {
1874                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1875                                 &iter, header->name,
1876                                 -1, "header_title", "header", NULL);
1877                 }
1878                 if (header->name[strlen(header->name) - 1] != ' ')
1879                 gtk_text_buffer_insert_with_tags_by_name
1880                                 (buffer, &iter, " ", 1,
1881                                  "header_title", "header", NULL);
1882
1883                 if (procheader_headername_equal(header->name, "Subject") ||
1884                     procheader_headername_equal(header->name, "From")    ||
1885                     procheader_headername_equal(header->name, "To")      ||
1886                     procheader_headername_equal(header->name, "Cc"))
1887                         unfold_line(header->body);
1888
1889                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1890                      procheader_headername_equal(header->name,
1891                                                  "X-Newsreader")) &&
1892                     (strstr(header->body, "Claws Mail") != NULL ||
1893                      strstr(header->body, "Sylpheed-Claws") != NULL)) {
1894                         gtk_text_buffer_get_end_iter (buffer, &iter);
1895                         gtk_text_buffer_insert_with_tags_by_name
1896                                 (buffer, &iter, header->body, -1,
1897                                  "header", "emphasis", NULL);
1898                 } else {
1899                         gboolean hdr =
1900                           procheader_headername_equal(header->name, "From") ||
1901                           procheader_headername_equal(header->name, "To") ||
1902                           procheader_headername_equal(header->name, "Cc") ||
1903                           procheader_headername_equal(header->name, "Bcc") ||
1904                           procheader_headername_equal(header->name, "Reply-To") ||
1905                           procheader_headername_equal(header->name, "Sender");
1906                         textview_make_clickable_parts(textview, "header",
1907                                                       "hlink", header->body,
1908                                                       hdr);
1909                 }
1910                 gtk_text_buffer_get_end_iter (buffer, &iter);
1911                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1912                                                          "header", NULL);
1913         }
1914
1915         textview_show_face(textview);
1916 #if HAVE_LIBCOMPFACE
1917         textview_show_xface(textview);
1918 #endif
1919 }
1920
1921 gboolean textview_search_string(TextView *textview, const gchar *str,
1922                                 gboolean case_sens)
1923 {
1924         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1925
1926         return gtkut_text_view_search_string(text, str, case_sens);
1927 }
1928
1929 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1930                                          gboolean case_sens)
1931 {
1932         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1933
1934         return gtkut_text_view_search_string_backward(text, str, case_sens);
1935 }
1936
1937 void textview_scroll_one_line(TextView *textview, gboolean up)
1938 {
1939         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1940         GtkAdjustment *vadj = text->vadjustment;
1941
1942         gtkutils_scroll_one_line(GTK_WIDGET(text), vadj, up);
1943 }
1944
1945 gboolean textview_scroll_page(TextView *textview, gboolean up)
1946 {
1947         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1948         GtkAdjustment *vadj = text->vadjustment;
1949
1950         return gtkutils_scroll_page(GTK_WIDGET(text), vadj, up);
1951 }
1952
1953 #define KEY_PRESS_EVENT_STOP() \
1954         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1955                                        "key_press_event");
1956
1957 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1958                                  TextView *textview)
1959 {
1960         SummaryView *summaryview = NULL;
1961         MessageView *messageview = textview->messageview;
1962
1963         if (!event) return FALSE;
1964         if (messageview->mainwin)
1965                 summaryview = messageview->mainwin->summaryview;
1966
1967         switch (event->keyval) {
1968         case GDK_Tab:
1969         case GDK_Home:
1970         case GDK_Left:
1971         case GDK_Up:
1972         case GDK_Right:
1973         case GDK_Down:
1974         case GDK_Page_Up:
1975         case GDK_Page_Down:
1976         case GDK_End:
1977         case GDK_Control_L:
1978         case GDK_Control_R:
1979                 return FALSE;
1980         case GDK_space:
1981                 if (summaryview)
1982                         summary_pass_key_press_event(summaryview, event);
1983                 else
1984                         mimeview_scroll_page
1985                                 (messageview->mimeview,
1986                                  (event->state &
1987                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1988                 break;
1989         case GDK_BackSpace:
1990                 mimeview_scroll_page(messageview->mimeview, TRUE);
1991                 break;
1992         case GDK_Return:
1993                 mimeview_scroll_one_line
1994                         (messageview->mimeview, (event->state &
1995                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1996                 break;
1997         case GDK_Delete:
1998                 if (summaryview)
1999                         summary_pass_key_press_event(summaryview, event);
2000                 break;
2001         case GDK_y:
2002         case GDK_t:
2003         case GDK_l:
2004         case GDK_c:
2005                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
2006                         KEY_PRESS_EVENT_STOP();
2007                         mimeview_pass_key_press_event(messageview->mimeview,
2008                                                       event);
2009                         break;
2010                 }
2011                 /* possible fall through */
2012         default:
2013                 if (summaryview &&
2014                     event->window != messageview->mainwin->window->window) {
2015                         GdkEventKey tmpev = *event;
2016
2017                         tmpev.window = messageview->mainwin->window->window;
2018                         KEY_PRESS_EVENT_STOP();
2019                         gtk_widget_event(messageview->mainwin->window,
2020                                          (GdkEvent *)&tmpev);
2021                 }
2022                 break;
2023         }
2024
2025         return TRUE;
2026 }
2027
2028 static gboolean textview_motion_notify(GtkWidget *widget,
2029                                        GdkEventMotion *event,
2030                                        TextView *textview)
2031 {
2032         if (textview->loading)
2033                 return FALSE;
2034         textview_uri_update(textview, event->x, event->y);
2035         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
2036
2037         return FALSE;
2038 }
2039
2040 static gboolean textview_leave_notify(GtkWidget *widget,
2041                                       GdkEventCrossing *event,
2042                                       TextView *textview)
2043 {
2044         if (textview->loading)
2045                 return FALSE;
2046         textview_uri_update(textview, -1, -1);
2047
2048         return FALSE;
2049 }
2050
2051 static gboolean textview_visibility_notify(GtkWidget *widget,
2052                                            GdkEventVisibility *event,
2053                                            TextView *textview)
2054 {
2055         gint wx, wy;
2056         GdkWindow *window;
2057
2058         if (textview->loading)
2059                 return FALSE;
2060
2061         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
2062                                           GTK_TEXT_WINDOW_TEXT);
2063
2064         /* check if occurred for the text window part */
2065         if (window != event->window)
2066                 return FALSE;
2067
2068         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
2069         textview_uri_update(textview, wx, wy);
2070
2071         return FALSE;
2072 }
2073
2074 void textview_cursor_wait(TextView *textview)
2075 {
2076         GdkWindow *window = gtk_text_view_get_window(
2077                         GTK_TEXT_VIEW(textview->text),
2078                         GTK_TEXT_WINDOW_TEXT);
2079         textview_set_cursor(window, watch_cursor);
2080 }
2081
2082 void textview_cursor_normal(TextView *textview)
2083 {
2084         GdkWindow *window = gtk_text_view_get_window(
2085                         GTK_TEXT_VIEW(textview->text),
2086                         GTK_TEXT_WINDOW_TEXT);
2087         textview_set_cursor(window, text_cursor);
2088 }
2089
2090 static void textview_uri_update(TextView *textview, gint x, gint y)
2091 {
2092         GtkTextBuffer *buffer;
2093         GtkTextIter start_iter, end_iter;
2094         ClickableText *uri = NULL;
2095
2096         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2097
2098         if (x != -1 && y != -1) {
2099                 gint bx, by;
2100                 GtkTextIter iter;
2101                 GSList *tags;
2102                 GSList *cur;
2103
2104                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
2105                                                       GTK_TEXT_WINDOW_WIDGET,
2106                                                       x, y, &bx, &by);
2107                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
2108                                                    &iter, bx, by);
2109
2110                 tags = gtk_text_iter_get_tags(&iter);
2111                 for (cur = tags; cur != NULL; cur = cur->next) {
2112                         GtkTextTag *tag = cur->data;
2113                         char *name;
2114
2115                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
2116
2117                         if ((!strcmp(name, "link") || !strcmp(name, "hlink"))
2118                             && textview_get_uri_range(textview, &iter, tag,
2119                                                       &start_iter, &end_iter)) {
2120
2121                                 uri = textview_get_uri_from_range(textview,
2122                                                                   &iter, tag,
2123                                                                   &start_iter,
2124                                                                   &end_iter);
2125                         }
2126                         g_free(name);
2127                         if (uri)
2128                                 break;
2129                 }
2130                 g_slist_free(tags);
2131         }
2132
2133         if (uri != textview->uri_hover) {
2134                 GdkWindow *window;
2135
2136                 if (textview->uri_hover)
2137                         gtk_text_buffer_remove_tag_by_name(buffer,
2138                                                            "link-hover",
2139                                                            &textview->uri_hover_start_iter,
2140                                                            &textview->uri_hover_end_iter);
2141
2142                 textview->uri_hover = uri;
2143                 if (uri) {
2144                         textview->uri_hover_start_iter = start_iter;
2145                         textview->uri_hover_end_iter = end_iter;
2146                 }
2147
2148                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
2149                                                   GTK_TEXT_WINDOW_TEXT);
2150                 if (textview->messageview->mainwin->cursor_count == 0) {
2151                         textview_set_cursor(window, uri ? hand_cursor : text_cursor);
2152                 } else {
2153                         textview_set_cursor(window, watch_cursor);
2154                 }
2155
2156                 TEXTVIEW_STATUSBAR_POP(textview);
2157
2158                 if (uri) {
2159                         char *trimmed_uri;
2160
2161                         if (!uri->is_quote)
2162                                 gtk_text_buffer_apply_tag_by_name(buffer,
2163                                                           "link-hover",
2164                                                           &start_iter,
2165                                                           &end_iter);
2166
2167                         trimmed_uri = trim_string(uri->uri, 60);
2168                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
2169                         g_free(trimmed_uri);
2170                 }
2171         }
2172 }
2173
2174 static gboolean textview_get_uri_range(TextView *textview,
2175                                        GtkTextIter *iter,
2176                                        GtkTextTag *tag,
2177                                        GtkTextIter *start_iter,
2178                                        GtkTextIter *end_iter)
2179 {
2180         return get_tag_range(iter, tag, start_iter, end_iter);
2181 }
2182
2183 static ClickableText *textview_get_uri_from_range(TextView *textview,
2184                                               GtkTextIter *iter,
2185                                               GtkTextTag *tag,
2186                                               GtkTextIter *start_iter,
2187                                               GtkTextIter *end_iter)
2188 {
2189         gint start_pos, end_pos, cur_pos;
2190         ClickableText *uri = NULL;
2191         GSList *cur;
2192
2193         start_pos = gtk_text_iter_get_offset(start_iter);
2194         end_pos = gtk_text_iter_get_offset(end_iter);
2195         cur_pos = gtk_text_iter_get_offset(iter);
2196
2197         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
2198                 ClickableText *uri_ = (ClickableText *)cur->data;
2199                 if (start_pos == uri_->start &&
2200                     end_pos ==  uri_->end) {
2201                         uri = uri_;
2202                         break;
2203                 }
2204         }
2205         for (cur = textview->uri_list; uri == NULL && cur != NULL; cur = cur->next) {
2206                 ClickableText *uri_ = (ClickableText *)cur->data;
2207                 if (start_pos == uri_->start ||
2208                            end_pos == uri_->end) {
2209                         /* in case of contiguous links, textview_get_uri_range
2210                          * returns a broader range (start of 1st link to end
2211                          * of last link).
2212                          * In that case, correct link is the one covering
2213                          * current iter.
2214                          */
2215                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
2216                                 uri = uri_;
2217                                 break;
2218                         }
2219                 }
2220         }
2221
2222         return uri;
2223 }
2224
2225 static ClickableText *textview_get_uri(TextView *textview,
2226                                    GtkTextIter *iter,
2227                                    GtkTextTag *tag)
2228 {
2229         GtkTextIter start_iter, end_iter;
2230         ClickableText *uri = NULL;
2231
2232         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2233                                    &end_iter))
2234                 uri = textview_get_uri_from_range(textview, iter, tag,
2235                                                   &start_iter, &end_iter);
2236
2237         return uri;
2238 }
2239
2240 static void textview_shift_uris_after(TextView *textview, GSList *start_list, gint start, gint shift)
2241 {
2242         GSList *cur;
2243         if (!start_list)
2244                 start_list = textview->uri_list;
2245
2246         for (cur = start_list; cur; cur = cur->next) {
2247                 ClickableText *uri = (ClickableText *)cur->data;
2248                 if (uri->start <= start)
2249                         continue;
2250                 uri->start += shift;
2251                 uri->end += shift;
2252         }
2253 }
2254
2255 static void textview_remove_uris_in(TextView *textview, gint start, gint end)
2256 {
2257         GSList *cur;
2258         for (cur = textview->uri_list; cur; ) {
2259                 ClickableText *uri = (ClickableText *)cur->data;
2260                 if (uri->start > start && uri->end < end) {
2261                         cur = cur->next;
2262                         textview->uri_list = g_slist_remove(textview->uri_list, uri);
2263                         g_free(uri->uri);
2264                         g_free(uri->filename);
2265                         if (uri->is_quote) {
2266                                 g_free(uri->fg_color);
2267                                 g_free(uri->data);
2268                                 /* (only free data in quotes uris) */
2269                         }
2270                         g_free(uri);
2271                 } else {
2272                         cur = cur->next;
2273                 }
2274
2275         }
2276 }
2277
2278 static void textview_toggle_quote(TextView *textview, GSList *start_list, ClickableText *uri, gboolean expand_only)
2279 {
2280         GtkTextIter start, end;
2281         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2282
2283         if (!uri->is_quote)
2284                 return;
2285
2286         if (uri->q_expanded && expand_only)
2287                 return;
2288
2289         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2290         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2291         if (textview->uri_hover)
2292                 gtk_text_buffer_remove_tag_by_name(buffer,
2293                                                    "link-hover",
2294                                                    &textview->uri_hover_start_iter,
2295                                                    &textview->uri_hover_end_iter);
2296         textview->uri_hover = NULL;
2297         gtk_text_buffer_remove_tag_by_name(buffer,
2298                                            "qlink",
2299                                            &start,
2300                                            &end);
2301         /* when shifting URIs start and end, we have to do it per-UTF8-char
2302          * so use g_utf8_strlen(). OTOH, when inserting in the text buffer,
2303          * we have to pass a number of bytes, so use strlen(). disturbing. */
2304
2305         if (!uri->q_expanded) {
2306                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2307                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2308                 textview_shift_uris_after(textview, start_list, uri->start,
2309                         g_utf8_strlen((gchar *)uri->data, -1)-strlen(" [...]\n"));
2310                 gtk_text_buffer_delete(buffer, &start, &end);
2311                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2312                 gtk_text_buffer_insert_with_tags_by_name
2313                                 (buffer, &start, (gchar *)uri->data,
2314                                  strlen((gchar *)uri->data)-1,
2315                                  "qlink", (gchar *)uri->fg_color, NULL);
2316                 uri->end = gtk_text_iter_get_offset(&start);
2317                 textview_make_clickable_parts_later(textview,
2318                                           uri->start, uri->end);
2319                 uri->q_expanded = TRUE;
2320         } else {
2321                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2322                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2323                 textview_remove_uris_in(textview, uri->start, uri->end);
2324                 textview_shift_uris_after(textview, start_list, uri->start,
2325                         strlen(" [...]\n")-g_utf8_strlen((gchar *)uri->data, -1));
2326                 gtk_text_buffer_delete(buffer, &start, &end);
2327                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2328                 gtk_text_buffer_insert_with_tags_by_name
2329                                 (buffer, &start, " [...]", -1,
2330                                  "qlink", (gchar *)uri->fg_color, NULL);
2331                 uri->end = gtk_text_iter_get_offset(&start);
2332                 uri->q_expanded = FALSE;
2333         }
2334         if (textview->messageview->mainwin->cursor_count == 0) {
2335                 textview_cursor_normal(textview);
2336         } else {
2337                 textview_cursor_wait(textview);
2338         }
2339 }
2340 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2341                                             GdkEvent *event, GtkTextIter *iter,
2342                                             TextView *textview)
2343 {
2344         GdkEventButton *bevent;
2345         ClickableText *uri = NULL;
2346         char *tagname;
2347         gboolean qlink = FALSE;
2348
2349         if (!event)
2350                 return FALSE;
2351
2352         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2353                 && event->type != GDK_MOTION_NOTIFY)
2354                 return FALSE;
2355
2356         uri = textview_get_uri(textview, iter, tag);
2357         if (!uri)
2358                 return FALSE;
2359
2360         g_object_get(G_OBJECT(tag), "name", &tagname, NULL);
2361
2362         if (!strcmp(tagname, "qlink"))
2363                 qlink = TRUE;
2364
2365         g_free(tagname);
2366
2367         bevent = (GdkEventButton *) event;
2368
2369         /* doubleclick: open compose / add address / browser */
2370         if (qlink && event->type == GDK_BUTTON_PRESS && bevent->button != 1) {
2371                 /* pass rightclick through */
2372                 return FALSE;
2373         } else if ((event->type == (qlink ? GDK_2BUTTON_PRESS:GDK_BUTTON_PRESS) && bevent->button == 1) ||
2374                 bevent->button == 2 || bevent->button == 3) {
2375                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2376                         MimeView *mimeview =
2377                                 (textview->messageview)?
2378                                         textview->messageview->mimeview:NULL;
2379                         if (mimeview && bevent->button == 1) {
2380                                 mimeview_handle_cmd(mimeview, uri->filename, NULL, uri->data);
2381                         } else if (mimeview && bevent->button == 2 &&
2382                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2383                                 mimeview_handle_cmd(mimeview, "sc://open_attachment", NULL, uri->data);
2384                         } else if (mimeview && bevent->button == 3 &&
2385                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2386                                 mimeview_handle_cmd(mimeview, "sc://menu_attachment", bevent, uri->data);
2387                         }
2388                         return TRUE;
2389                 } else if (qlink && bevent->button == 1) {
2390                         textview_toggle_quote(textview, NULL, uri, FALSE);
2391                         return TRUE;
2392                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2393                         if (bevent->button == 3) {
2394                                 g_object_set_data(
2395                                         G_OBJECT(textview->mail_popup_menu),
2396                                         "menu_button", uri);
2397                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2398                                                NULL, NULL, NULL, NULL,
2399                                                bevent->button, bevent->time);
2400                         } else {
2401                                 PrefsAccount *account = NULL;
2402                                 FolderItem   *folder_item = NULL;
2403                                 if (textview->messageview && textview->messageview->msginfo &&
2404                                     textview->messageview->msginfo->folder) {
2405
2406
2407                                         folder_item = textview->messageview->msginfo->folder;
2408                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2409                                                 account = account_find_from_id(folder_item->prefs->default_account);
2410                                 }
2411                                 compose_new_with_folderitem(account, folder_item, uri->uri + 7);
2412                         }
2413                         return TRUE;
2414                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2415                         if (bevent->button == 1 &&
2416                             textview_uri_security_check(textview, uri) == TRUE)
2417                                         open_uri(uri->uri,
2418                                                  prefs_common.uri_cmd);
2419                         else if (bevent->button == 3 && !qlink) {
2420                                 g_object_set_data(
2421                                         G_OBJECT(textview->link_popup_menu),
2422                                         "menu_button", uri);
2423                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2424                                                NULL, NULL, NULL, NULL,
2425                                                bevent->button, bevent->time);
2426                         }
2427                         return TRUE;
2428                 } else {
2429                         if (bevent->button == 3 && !qlink) {
2430                                 g_object_set_data(
2431                                         G_OBJECT(textview->file_popup_menu),
2432                                         "menu_button", uri);
2433                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2434                                                NULL, NULL, NULL, NULL,
2435                                                bevent->button, bevent->time);
2436                                 return TRUE;
2437                         }
2438                 }
2439         }
2440
2441         return FALSE;
2442 }
2443
2444 /*!
2445  *\brief    Check to see if a web URL has been disguised as a different
2446  *          URL (possible with HTML email).
2447  *
2448  *\param    uri The uri to check
2449  *
2450  *\param    textview The TextView the URL is contained in
2451  *
2452  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2453  *          it anyway, otherwise FALSE
2454  */
2455 static gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
2456 {
2457         gchar *visible_str;
2458         gboolean retval = TRUE;
2459         GtkTextBuffer *buffer;
2460         GtkTextIter start, end;
2461
2462         if (is_uri_string(uri->uri) == FALSE)
2463                 return TRUE;
2464
2465         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2466
2467         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2468         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2469
2470         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2471
2472         if (visible_str == NULL)
2473                 return TRUE;
2474
2475         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2476                 gchar *uri_path;
2477                 gchar *visible_uri_path;
2478
2479                 uri_path = get_uri_path(uri->uri);
2480                 visible_uri_path = get_uri_path(visible_str);
2481                 if (path_cmp(uri_path, visible_uri_path) != 0)
2482                         retval = FALSE;
2483         }
2484
2485         if (retval == FALSE) {
2486                 gchar *msg;
2487                 AlertValue aval;
2488
2489                 msg = g_markup_printf_escaped(_("The real URL is different from "
2490                                                 "the displayed URL.\n"
2491                                                 "\n"
2492                                                 "<b>Displayed URL:</b> %s\n"
2493                                                 "\n"
2494                                                 "<b>Real URL:</b> %s\n"
2495                                                 "\n"
2496                                                 "Open it anyway?"),
2497                                                visible_str,uri->uri);
2498                 aval = alertpanel_full(_("Phishing attempt warning"), msg,
2499                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2500                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2501                 g_free(msg);
2502                 if (aval == G_ALERTALTERNATE)
2503                         retval = TRUE;
2504         }
2505
2506         g_free(visible_str);
2507
2508         return retval;
2509 }
2510
2511 static void textview_uri_list_remove_all(GSList *uri_list)
2512 {
2513         GSList *cur;
2514
2515         for (cur = uri_list; cur != NULL; cur = cur->next) {
2516                 if (cur->data) {
2517                         g_free(((ClickableText *)cur->data)->uri);
2518                         g_free(((ClickableText *)cur->data)->filename);
2519                         if (((ClickableText *)cur->data)->is_quote) {
2520                                 g_free(((ClickableText *)cur->data)->fg_color);
2521                                 g_free(((ClickableText *)cur->data)->data);
2522                                 /* (only free data in quotes uris) */
2523                         }
2524                         g_free(cur->data);
2525                 }
2526         }
2527
2528         g_slist_free(uri_list);
2529 }
2530
2531 static void open_uri_cb (TextView *textview, guint action, void *data)
2532 {
2533         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2534                                            "menu_button");
2535         if (uri == NULL)
2536                 return;
2537
2538         if (textview_uri_security_check(textview, uri) == TRUE)
2539                 open_uri(uri->uri,
2540                          prefs_common.uri_cmd);
2541         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2542                           NULL);
2543 }
2544
2545 static void open_image_cb (TextView *textview, guint action, void *data)
2546 {
2547         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2548                                            "menu_button");
2549
2550         gchar *cmd = NULL;
2551         gchar buf[1024];
2552         const gchar *p;
2553         gchar *filename = NULL;
2554         gchar *tmp_filename = NULL;
2555
2556         if (uri == NULL)
2557                 return;
2558
2559         if (uri->filename == NULL)
2560                 return;
2561
2562         filename = g_strdup(uri->filename);
2563
2564         if (!g_utf8_validate(filename, -1, NULL)) {
2565                 gchar *tmp = conv_filename_to_utf8(filename);
2566                 g_free(filename);
2567                 filename = tmp;
2568         }
2569
2570         subst_for_filename(filename);
2571
2572         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2573         copy_file(tmp_filename, filename, FALSE);
2574         g_free(tmp_filename);
2575
2576         cmd = mailcap_get_command_for_type("image/jpeg", filename);
2577         if (cmd == NULL) {
2578                 gboolean remember = FALSE;
2579                 cmd = input_dialog_combo_remember
2580                         (_("Open with"),
2581                          _("Enter the command line to open file:\n"
2582                            "('%s' will be replaced with file name)"),
2583                          prefs_common.mime_open_cmd,
2584                          prefs_common.mime_open_cmd_history,
2585                          TRUE, &remember);
2586                 if (cmd && remember) {
2587                         mailcap_update_default("image/jpeg", cmd);
2588                 }
2589         }
2590         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2591             !strchr(p + 2, '%'))
2592                 g_snprintf(buf, sizeof(buf), cmd, filename);
2593         else {
2594                 g_warning("Image viewer command line is invalid: '%s'", cmd);
2595                 return;
2596         }
2597
2598         execute_command_line(buf, TRUE);
2599
2600         g_free(filename);
2601         g_free(cmd);
2602
2603         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2604                           NULL);
2605 }
2606
2607 static void save_file_cb (TextView *textview, guint action, void *data)
2608 {
2609         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2610                                            "menu_button");
2611         gchar *filename = NULL;
2612         gchar *filepath = NULL;
2613         gchar *filedir = NULL;
2614         gchar *tmp_filename = NULL;
2615         if (uri == NULL)
2616                 return;
2617
2618         if (uri->filename == NULL)
2619                 return;
2620
2621         filename = g_strdup(uri->filename);
2622
2623         if (!g_utf8_validate(filename, -1, NULL)) {
2624                 gchar *tmp = conv_filename_to_utf8(filename);
2625                 g_free(filename);
2626                 filename = tmp;
2627         }
2628
2629         subst_for_filename(filename);
2630
2631         if (prefs_common.attach_save_dir)
2632                 filepath = g_strconcat(prefs_common.attach_save_dir,
2633                                        G_DIR_SEPARATOR_S, filename, NULL);
2634         else
2635                 filepath = g_strdup(filename);
2636
2637         g_free(filename);
2638
2639         filename = filesel_select_file_save(_("Save as"), filepath);
2640         if (!filename) {
2641                 g_free(filepath);
2642                 return;
2643         }
2644
2645         if (is_file_exist(filename)) {
2646                 AlertValue aval;
2647                 gchar *res;
2648
2649                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2650                                       filename);
2651                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2652                                   GTK_STOCK_OK, NULL);
2653                 g_free(res);
2654                 if (G_ALERTALTERNATE != aval)
2655                         return;
2656         }
2657
2658         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2659         copy_file(tmp_filename, filename, FALSE);
2660         g_free(tmp_filename);
2661
2662         filedir = g_path_get_dirname(filename);
2663         if (filedir && strcmp(filedir, ".")) {
2664                 g_free(prefs_common.attach_save_dir);
2665                 prefs_common.attach_save_dir = g_strdup(filedir);
2666         }
2667
2668         g_free(filedir);
2669         g_free(filepath);
2670
2671         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2672                           NULL);
2673 }
2674
2675 static void copy_uri_cb (TextView *textview, guint action, void *data)
2676 {
2677         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2678                                            "menu_button");
2679         if (uri == NULL)
2680                 return;
2681
2682         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2683         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2684         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2685                           NULL);
2686 }
2687
2688 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2689 {
2690         gchar *fromname, *fromaddress;
2691         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2692                                            "menu_button");
2693         if (uri == NULL)
2694                 return;
2695
2696         /* extract url */
2697         fromaddress = g_strdup(uri->uri + 7);
2698         /* Hiroyuki: please put this function in utils.c! */
2699         fromname = procheader_get_fromname(fromaddress);
2700         extract_address(fromaddress);
2701         g_message("adding from textview %s <%s>", fromname, fromaddress);
2702         /* Add to address book - Match */
2703         addressbook_add_contact( fromname, fromaddress, NULL );
2704
2705         g_free(fromaddress);
2706         g_free(fromname);
2707 }
2708
2709 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2710 {
2711         PrefsAccount *account = NULL;
2712         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2713                                            "menu_button");
2714         if (uri == NULL)
2715                 return;
2716
2717         if (textview->messageview && textview->messageview->msginfo &&
2718             textview->messageview->msginfo->folder) {
2719                 FolderItem   *folder_item;
2720
2721                 folder_item = textview->messageview->msginfo->folder;
2722                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2723                         account = account_find_from_id(folder_item->prefs->default_account);
2724         }
2725         compose_new(account, uri->uri + 7, NULL);
2726 }
2727
2728 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2729 {
2730         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2731                                            "menu_button");
2732         if (uri == NULL)
2733                 return;
2734
2735         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2736         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2737         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2738                           NULL);
2739 }
2740