src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gdk/gdk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <gtk/gtkvbox.h>
  31 #include <gtk/gtkscrolledwindow.h>
  32 #include <gtk/gtksignal.h>
  33 #include <stdio.h>
  34 #include <ctype.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #include <errno.h>
  38 #include <sys/wait.h>
  39 #if HAVE_LIBCOMPFACE
  40 #  include <compface.h>
  41 #endif
  42
  43 #if HAVE_LIBCOMPFACE
  44 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  45 #endif
  46
  47 #include "main.h"
  48 #include "summaryview.h"
  49 #include "procheader.h"
  50 #include "prefs_common.h"
  51 #include "codeconv.h"
  52 #include "utils.h"
  53 #include "gtkutils.h"
  54 #include "procmime.h"
  55 #include "html.h"
  56 #include "enriched.h"
  57 #include "compose.h"
  58 #include "addressbook.h"
  59 #include "displayheader.h"
  60 #include "account.h"
  61 #include "mimeview.h"
  62 #include "alertpanel.h"
  63 #include "menu.h"
  64 #include "image_viewer.h"
  65 #include "filesel.h"
  66 #include "base64.h"
  67 #include "inputdialog.h"
  68
  69 struct _ClickableText
  70 {
  71         gchar *uri;
  72
  73         gchar *filename;
  74
  75         gpointer data;
  76
  77         guint start;
  78         guint end;
  79
  80         gboolean is_quote;
  81         gint quote_level;
  82         gboolean q_expanded;
  83         gchar *fg_color;
  84 };
  85
  86 gint previousquotelevel = -1;
  87
  88 static GdkColor quote_colors[3] = {
  89         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  90         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  91         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  92 };
  93
  94 static GdkColor quote_bgcolors[3] = {
  95         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  96         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  97         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  98 };
  99 static GdkColor signature_color = {
 100         (gulong)0,
 101         (gushort)0x7fff,
 102         (gushort)0x7fff,
 103         (gushort)0x7fff
 104 };
 105
 106 static GdkColor uri_color = {
 107         (gulong)0,
 108         (gushort)0,
 109         (gushort)0,
 110         (gushort)0
 111 };
 112
 113 static GdkColor emphasis_color = {
 114         (gulong)0,
 115         (gushort)0,
 116         (gushort)0,
 117         (gushort)0xcfff
 118 };
 119
 120 static GdkCursor *hand_cursor = NULL;
 121 static GdkCursor *text_cursor = NULL;
 122 static GdkCursor *watch_cursor= NULL;
 123
 124 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 125 {       if (textview->messageview->statusbar)                               \
 126         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 127                            textview->messageview->statusbar_cid, str);      \
 128 }
 129
 130 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 131 {       if (textview->messageview->statusbar)                              \
 132         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 133                           textview->messageview->statusbar_cid);           \
 134 }
 135
 136 static void textview_show_ertf          (TextView       *textview,
 137                                          FILE           *fp,
 138                                          CodeConverter  *conv);
 139 static void textview_add_part           (TextView       *textview,
 140                                          MimeInfo       *mimeinfo);
 141 static void textview_add_parts          (TextView       *textview,
 142                                          MimeInfo       *mimeinfo);
 143 static void textview_write_body         (TextView       *textview,
 144                                          MimeInfo       *mimeinfo);
 145 static void textview_show_html          (TextView       *textview,
 146                                          FILE           *fp,
 147                                          CodeConverter  *conv);
 148
 149 static void textview_write_line         (TextView       *textview,
 150                                          const gchar    *str,
 151                                          CodeConverter  *conv);
 152 static void textview_write_link         (TextView       *textview,
 153                                          const gchar    *str,
 154                                          const gchar    *uri,
 155                                          CodeConverter  *conv);
 156
 157 static GPtrArray *textview_scan_header  (TextView       *textview,
 158                                          FILE           *fp);
 159 static void textview_show_header        (TextView       *textview,
 160                                          GPtrArray      *headers);
 161
 162 static gint textview_key_pressed                (GtkWidget      *widget,
 163                                                  GdkEventKey    *event,
 164                                                  TextView       *textview);
 165 static gboolean textview_motion_notify          (GtkWidget      *widget,
 166                                                  GdkEventMotion *motion,
 167                                                  TextView       *textview);
 168 static gboolean textview_leave_notify           (GtkWidget        *widget,
 169                                                  GdkEventCrossing *event,
 170                                                  TextView         *textview);
 171 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 172                                                  GdkEventVisibility *event,
 173                                                  TextView       *textview);
 174 static void textview_uri_update                 (TextView       *textview,
 175                                                  gint           x,
 176                                                  gint           y);
 177 static gboolean textview_get_uri_range          (TextView       *textview,
 178                                                  GtkTextIter    *iter,
 179                                                  GtkTextTag     *tag,
 180                                                  GtkTextIter    *start_iter,
 181                                                  GtkTextIter    *end_iter);
 182 static ClickableText *textview_get_uri_from_range       (TextView       *textview,
 183                                                  GtkTextIter    *iter,
 184                                                  GtkTextTag     *tag,
 185                                                  GtkTextIter    *start_iter,
 186                                                  GtkTextIter    *end_iter);
 187 static ClickableText *textview_get_uri          (TextView       *textview,
 188                                                  GtkTextIter    *iter,
 189                                                  GtkTextTag     *tag);
 190 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 191                                                  GObject        *obj,
 192                                                  GdkEvent       *event,
 193                                                  GtkTextIter    *iter,
 194                                                  TextView       *textview);
 195
 196 static void textview_smooth_scroll_do           (TextView       *textview,
 197                                                  gfloat          old_value,
 198                                                  gfloat          last_value,
 199                                                  gint            step);
 200 static void textview_smooth_scroll_one_line     (TextView       *textview,
 201                                                  gboolean        up);
 202 static gboolean textview_smooth_scroll_page     (TextView       *textview,
 203                                                  gboolean        up);
 204
 205 static gboolean textview_uri_security_check     (TextView       *textview,
 206                                                  ClickableText  *uri);
 207 static void textview_uri_list_remove_all        (GSList         *uri_list);
 208
 209 static void textview_toggle_quote               (TextView       *textview,
 210                                                  ClickableText  *uri,
 211                                                  gboolean        expand_only);
 212
 213 static void open_uri_cb                         (TextView       *textview,
 214                                                  guint           action,
 215                                                  void           *data);
 216 static void copy_uri_cb                         (TextView       *textview,
 217                                                  guint           action,
 218                                                  void           *data);
 219 static void add_uri_to_addrbook_cb              (TextView       *textview,
 220                                                  guint           action,
 221                                                  void           *data);
 222 static void mail_to_uri_cb                      (TextView       *textview,
 223                                                  guint           action,
 224                                                  void           *data);
 225 static void copy_mail_to_uri_cb                 (TextView       *textview,
 226                                                  guint           action,
 227                                                  void           *data);
 228 static void save_file_cb                        (TextView       *textview,
 229                                                  guint           action,
 230                                                  void           *data);
 231 static void open_image_cb                       (TextView       *textview,
 232                                                  guint           action,
 233                                                  void           *data);
 234 static void textview_show_icon(TextView *textview, const gchar *stock_id);
 235
 236 static GtkItemFactoryEntry textview_link_popup_entries[] =
 237 {
 238         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 239         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 240 };
 241
 242 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 243 {
 244         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 245         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 246         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 247 };
 248
 249 static GtkItemFactoryEntry textview_file_popup_entries[] =
 250 {
 251         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 252         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 253 };
 254
 255 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 256 {
 257 #ifndef WIDTH
 258 #  define WIDTH 48
 259 #  define HEIGHT 48
 260 #endif
 261         if (textview->image) {
 262                 gint x, y, x1;
 263                 x1 = textview->text->allocation.width - WIDTH - 5;
 264                 gtk_text_view_buffer_to_window_coords(
 265                         GTK_TEXT_VIEW(textview->text),
 266                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 267                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 268                         textview->image, x1, y);
 269         }
 270 }
 271
 272 static void textview_size_allocate_cb   (GtkWidget      *widget,
 273                                          GtkAllocation  *allocation,
 274                                          gpointer        data)
 275 {
 276         scrolled_cb(NULL, (TextView *)data);
 277 }
 278
 279 TextView *textview_create(void)
 280 {
 281         TextView *textview;
 282         GtkWidget *vbox;
 283         GtkWidget *scrolledwin;
 284         GtkWidget *text;
 285         GtkTextBuffer *buffer;
 286         GtkClipboard *clipboard;
 287         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 288         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 289         GtkAdjustment *adj;
 290         gint n_entries;
 291
 292         debug_print("Creating text view...\n");
 293         textview = g_new0(TextView, 1);
 294
 295         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 296         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 297                                        GTK_POLICY_AUTOMATIC,
 298                                        GTK_POLICY_AUTOMATIC);
 299         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 300                                             GTK_SHADOW_IN);
 301         gtk_widget_set_size_request
 302                 (scrolledwin, prefs_common.mainview_width, -1);
 303
 304         /* create GtkSText widgets for single-byte and multi-byte character */
 305         text = gtk_text_view_new();
 306         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 307         gtk_widget_show(text);
 308         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 309         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 310         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 311         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 312         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 313
 314         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 315         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 316         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 317
 318         gtk_widget_ensure_style(text);
 319
 320         gtk_widget_ref(scrolledwin);
 321
 322         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 323
 324         g_signal_connect(G_OBJECT(text), "key-press-event",
 325                          G_CALLBACK(textview_key_pressed), textview);
 326         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 327                          G_CALLBACK(textview_motion_notify), textview);
 328         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 329                          G_CALLBACK(textview_leave_notify), textview);
 330         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 331                          G_CALLBACK(textview_visibility_notify), textview);
 332         adj = gtk_scrolled_window_get_vadjustment(
 333                 GTK_SCROLLED_WINDOW(scrolledwin));
 334         g_signal_connect(G_OBJECT(adj), "value-changed",
 335                          G_CALLBACK(scrolled_cb), textview);
 336         g_signal_connect(G_OBJECT(text), "size_allocate",
 337                          G_CALLBACK(textview_size_allocate_cb),
 338                          textview);
 339
 340
 341         gtk_widget_show(scrolledwin);
 342
 343         vbox = gtk_vbox_new(FALSE, 0);
 344         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 345
 346         gtk_widget_show(vbox);
 347
 348         n_entries = sizeof(textview_link_popup_entries) /
 349                 sizeof(textview_link_popup_entries[0]);
 350         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 351                                       "<UriPopupMenu>", &link_popupfactory,
 352                                       textview);
 353
 354         n_entries = sizeof(textview_mail_popup_entries) /
 355                 sizeof(textview_mail_popup_entries[0]);
 356         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 357                                       "<UriPopupMenu>", &mail_popupfactory,
 358                                       textview);
 359
 360         n_entries = sizeof(textview_file_popup_entries) /
 361                 sizeof(textview_file_popup_entries[0]);
 362         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 363                                       "<FilePopupMenu>", &file_popupfactory,
 364                                       textview);
 365
 366         textview->vbox               = vbox;
 367         textview->scrolledwin        = scrolledwin;
 368         textview->text               = text;
 369         textview->uri_list           = NULL;
 370         textview->body_pos           = 0;
 371         textview->show_all_headers   = FALSE;
 372         textview->last_buttonpress   = GDK_NOTHING;
 373         textview->link_popup_menu    = link_popupmenu;
 374         textview->link_popup_factory = link_popupfactory;
 375         textview->mail_popup_menu    = mail_popupmenu;
 376         textview->mail_popup_factory = mail_popupfactory;
 377         textview->file_popup_menu    = file_popupmenu;
 378         textview->file_popup_factory = file_popupfactory;
 379         textview->image              = NULL;
 380         return textview;
 381 }
 382
 383 static void textview_create_tags(GtkTextView *text, TextView *textview)
 384 {
 385         GtkTextBuffer *buffer;
 386         GtkTextTag *tag, *qtag;
 387         static PangoFontDescription *font_desc, *bold_font_desc;
 388
 389         if (!font_desc)
 390                 font_desc = pango_font_description_from_string
 391                         (NORMAL_FONT);
 392
 393         if (!bold_font_desc) {
 394                 bold_font_desc = pango_font_description_from_string
 395                         (NORMAL_FONT);
 396                 pango_font_description_set_weight
 397                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 398         }
 399
 400         buffer = gtk_text_view_get_buffer(text);
 401
 402         gtk_text_buffer_create_tag(buffer, "header",
 403                                    "pixels-above-lines", 0,
 404                                    "pixels-above-lines-set", TRUE,
 405                                    "pixels-below-lines", 0,
 406                                    "pixels-below-lines-set", TRUE,
 407                                    "font-desc", font_desc,
 408                                    "left-margin", 3,
 409                                    "left-margin-set", TRUE,
 410                                    NULL);
 411         gtk_text_buffer_create_tag(buffer, "header_title",
 412                                    "font-desc", bold_font_desc,
 413                                    NULL);
 414         if (prefs_common.enable_bgcolor) {
 415                 gtk_text_buffer_create_tag(buffer, "quote0",
 416                                 "foreground-gdk", &quote_colors[0],
 417                                 "paragraph-background-gdk", &quote_bgcolors[0],
 418                                 NULL);
 419                 gtk_text_buffer_create_tag(buffer, "quote1",
 420                                 "foreground-gdk", &quote_colors[1],
 421                                 "paragraph-background-gdk", &quote_bgcolors[1],
 422                                 NULL);
 423                 gtk_text_buffer_create_tag(buffer, "quote2",
 424                                 "foreground-gdk", &quote_colors[2],
 425                                 "paragraph-background-gdk", &quote_bgcolors[2],
 426                                 NULL);
 427         } else {
 428                 gtk_text_buffer_create_tag(buffer, "quote0",
 429                                 "foreground-gdk", &quote_colors[0],
 430                                 NULL);
 431                 gtk_text_buffer_create_tag(buffer, "quote1",
 432                                 "foreground-gdk", &quote_colors[1],
 433                                 NULL);
 434                 gtk_text_buffer_create_tag(buffer, "quote2",
 435                                 "foreground-gdk", &quote_colors[2],
 436                                 NULL);
 437         }
 438         gtk_text_buffer_create_tag(buffer, "emphasis",
 439                         "foreground-gdk", &emphasis_color,
 440                         NULL);
 441         gtk_text_buffer_create_tag(buffer, "signature",
 442                         "foreground-gdk", &signature_color,
 443                         NULL);
 444         tag = gtk_text_buffer_create_tag(buffer, "link",
 445                         "foreground-gdk", &uri_color,
 446                         NULL);
 447         qtag = gtk_text_buffer_create_tag(buffer, "qlink",
 448                         NULL);
 449         gtk_text_buffer_create_tag(buffer, "link-hover",
 450                         "underline", PANGO_UNDERLINE_SINGLE,
 451                         NULL);
 452         g_signal_connect(G_OBJECT(qtag), "event",
 453                          G_CALLBACK(textview_uri_button_pressed), textview);
 454         g_signal_connect(G_OBJECT(tag), "event",
 455                          G_CALLBACK(textview_uri_button_pressed), textview);
 456  }
 457
 458 void textview_init(TextView *textview)
 459 {
 460         if (!hand_cursor)
 461                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 462         if (!text_cursor)
 463                 text_cursor = gdk_cursor_new(GDK_XTERM);
 464         if (!watch_cursor)
 465                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 466
 467         textview_reflect_prefs(textview);
 468         textview_set_all_headers(textview, FALSE);
 469         textview_set_font(textview, NULL);
 470         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 471 }
 472
 473 #if GTK_CHECK_VERSION(2, 8, 0)
 474  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 475         tag = gtk_text_tag_table_lookup(tags, tagname); \
 476         if (tag) \
 477                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 478  }
 479 #else
 480  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 481         tag = gtk_text_tag_table_lookup(tags, tagname); \
 482         if (tag) \
 483                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, NULL); \
 484  }
 485 #endif
 486
 487 static void textview_update_message_colors(TextView *textview)
 488 {
 489         GdkColor black = {0, 0, 0, 0};
 490         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 491         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 492
 493         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 494         GtkTextTag *tag = NULL;
 495
 496         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 497         quote_colors[0] = quote_colors[1] = quote_colors[2] =
 498                 uri_color = emphasis_color = signature_color = black;
 499
 500         if (prefs_common.enable_color) {
 501                 /* grab the quote colors, converting from an int to a GdkColor */
 502                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 503                                                &quote_colors[0]);
 504                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 505                                                &quote_colors[1]);
 506                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 507                                                &quote_colors[2]);
 508                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 509                                                &uri_color);
 510                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 511                                                &signature_color);
 512                 emphasis_color = colored_emphasis;
 513         }
 514         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 515                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_bgcol,
 516                                                    &quote_bgcolors[0]);
 517                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_bgcol,
 518                                                    &quote_bgcolors[1]);
 519                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_bgcol,
 520                                                    &quote_bgcolors[2]);
 521                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 522                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 523                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 524         } else {
 525                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 526                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 527                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 528         }
 529
 530         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 531         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 532         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 533         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 534 }
 535 #undef CHANGE_TAG_COLOR
 536
 537 void textview_reflect_prefs(TextView *textview)
 538 {
 539         textview_set_font(textview, NULL);
 540         textview_update_message_colors(textview);
 541         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 542                                          prefs_common.textview_cursor_visible);
 543 }
 544
 545 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 546                            const gchar *file)
 547 {
 548         textview_clear(textview);
 549
 550         textview_add_parts(textview, mimeinfo);
 551
 552         textview_set_position(textview, 0);
 553 }
 554
 555 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 556 {
 557         g_return_if_fail(mimeinfo != NULL);
 558         g_return_if_fail(fp != NULL);
 559
 560         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 561             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 562                 textview_clear(textview);
 563                 textview_add_parts(textview, mimeinfo);
 564                 return;
 565         }
 566
 567         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 568                 perror("fseek");
 569
 570         textview_clear(textview);
 571
 572         if (mimeinfo->type == MIMETYPE_MULTIPART)
 573                 textview_add_parts(textview, mimeinfo);
 574         else
 575                 textview_write_body(textview, mimeinfo);
 576 }
 577
 578 #define TEXT_INSERT(str) \
 579         gtk_text_buffer_insert_with_tags_by_name \
 580                                 (buffer, &iter, str, -1,\
 581                                  "header", NULL)
 582
 583 #define TEXT_INSERT_LINK(str, fname, udata) {                           \
 584         ClickableText *uri;                                                     \
 585         uri = g_new0(ClickableText, 1);                                 \
 586         uri->uri = g_strdup("");                                        \
 587         uri->start = gtk_text_iter_get_offset(&iter);                   \
 588         gtk_text_buffer_insert_with_tags_by_name                        \
 589                                 (buffer, &iter, str, -1,                \
 590                                  "link", "header_title", "header",      \
 591                                  NULL);                                 \
 592         uri->end = gtk_text_iter_get_offset(&iter);                     \
 593         uri->filename = fname?g_strdup(fname):NULL;                     \
 594         uri->data = udata;                                              \
 595         textview->uri_list =                                            \
 596                 g_slist_append(textview->uri_list, uri);                \
 597 }
 598
 599 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 600 {
 601         GtkTextView *text;
 602         GtkTextBuffer *buffer;
 603         GtkTextIter iter, start_iter;
 604         gchar buf[BUFFSIZE];
 605         GPtrArray *headers = NULL;
 606         const gchar *name;
 607         gchar *content_type;
 608         gint charcount;
 609
 610         g_return_if_fail(mimeinfo != NULL);
 611         text = GTK_TEXT_VIEW(textview->text);
 612         buffer = gtk_text_view_get_buffer(text);
 613         charcount = gtk_text_buffer_get_char_count(buffer);
 614         gtk_text_buffer_get_end_iter(buffer, &iter);
 615
 616         if (mimeinfo->type == MIMETYPE_MULTIPART) return;
 617
 618         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 619                 FILE *fp;
 620
 621                 fp = g_fopen(mimeinfo->data.filename, "rb");
 622                 fseek(fp, mimeinfo->offset, SEEK_SET);
 623                 headers = textview_scan_header(textview, fp);
 624                 if (headers) {
 625                         if (charcount > 0)
 626                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 627                         textview_show_header(textview, headers);
 628                         procheader_header_array_destroy(headers);
 629                 }
 630                 fclose(fp);
 631                 return;
 632         }
 633
 634         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 635         content_type = procmime_get_content_type_str(mimeinfo->type,
 636                                                      mimeinfo->subtype);
 637         if (name == NULL)
 638                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 639         if (name != NULL)
 640                 g_snprintf(buf, sizeof(buf), _("[%s  %s (%d bytes)]"),
 641                            name, content_type, mimeinfo->length);
 642         else
 643                 g_snprintf(buf, sizeof(buf), _("[%s (%d bytes)]"),
 644                            content_type, mimeinfo->length);
 645
 646         g_free(content_type);
 647
 648         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 649         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 650             mimeinfo->type != MIMETYPE_TEXT)) {
 651                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 652                 TEXT_INSERT_LINK(buf, "sc://select_attachment", mimeinfo);
 653                 gtk_text_buffer_insert(buffer, &iter, " \n", -1);
 654                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 655                     prefs_common.inline_img ) {
 656                         GdkPixbuf *pixbuf;
 657                         GError *error = NULL;
 658                         gchar *filename;
 659                         ClickableText *uri;
 660                         gchar *uri_str;
 661
 662                         filename = procmime_get_tmp_file_name(mimeinfo);
 663                         if (procmime_get_part(filename, mimeinfo) < 0) {
 664                                 g_warning("Can't get the image file.");
 665                                 g_free(filename);
 666                                 return;
 667                         }
 668
 669                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 670                         if (error != NULL) {
 671                                 g_warning("%s\n", error->message);
 672                                 g_error_free(error);
 673                         }
 674                         if (!pixbuf) {
 675                                 g_warning("Can't load the image.");
 676                                 g_free(filename);
 677                                 return;
 678                         }
 679
 680                         if (prefs_common.resize_img) {
 681                                 int new_width, new_height;
 682                                 GdkPixbuf *scaled;
 683                                 image_viewer_get_resized_size(gdk_pixbuf_get_width(pixbuf),
 684                                                  gdk_pixbuf_get_height(pixbuf),
 685                                                  textview->scrolledwin->allocation.width - 100,
 686                                                  gdk_pixbuf_get_height(pixbuf),
 687                                                  &new_width, &new_height);
 688                                 scaled = gdk_pixbuf_scale_simple
 689                                         (pixbuf, new_width, new_height, GDK_INTERP_BILINEAR);
 690
 691                                 g_object_unref(pixbuf);
 692                                 pixbuf = scaled;
 693                         }
 694
 695                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 696                         if (uri_str) {
 697                                 uri = g_new0(ClickableText, 1);
 698                                 uri->uri = uri_str;
 699                                 uri->start = gtk_text_iter_get_offset(&iter);
 700
 701                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 702
 703                                 uri->end = uri->start + 1;
 704                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 705                                 textview->uri_list =
 706                                         g_slist_append(textview->uri_list, uri);
 707
 708                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 709                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 710                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 711                                                 &start_iter, &iter);
 712                         } else {
 713                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 714                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 715                         }
 716
 717                         g_object_unref(pixbuf);
 718                         g_free(filename);
 719                 }
 720         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 721                 if (prefs_common.display_header && (charcount > 0))
 722                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 723
 724                 textview_write_body(textview, mimeinfo);
 725         }
 726 }
 727
 728 static void recursive_add_parts(TextView *textview, GNode *node)
 729 {
 730         GNode * iter;
 731         MimeInfo *mimeinfo;
 732
 733         mimeinfo = (MimeInfo *) node->data;
 734
 735         textview_add_part(textview, mimeinfo);
 736
 737         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 738             (mimeinfo->type != MIMETYPE_MESSAGE))
 739                 return;
 740
 741         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 742                 GNode * prefered_body;
 743                 int prefered_score;
 744
 745                 /*
 746                   text/plain : score 3
 747                   text/ *    : score 2
 748                   other      : score 1
 749                 */
 750                 prefered_body = NULL;
 751                 prefered_score = 0;
 752
 753                 for (iter = g_node_first_child(node) ; iter != NULL ;
 754                      iter = g_node_next_sibling(iter)) {
 755                         int score;
 756                         MimeInfo * submime;
 757
 758                         score = 1;
 759                         submime = (MimeInfo *) iter->data;
 760                         if (submime->type == MIMETYPE_TEXT)
 761                                 score = 2;
 762
 763                         if (submime->subtype != NULL) {
 764                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 765                                         score = 3;
 766                         }
 767
 768                         if (score > prefered_score) {
 769                                 prefered_score = score;
 770                                 prefered_body = iter;
 771                         }
 772                 }
 773
 774                 if (prefered_body != NULL) {
 775                         recursive_add_parts(textview, prefered_body);
 776                 }
 777         }
 778         else {
 779                 for (iter = g_node_first_child(node) ; iter != NULL ;
 780                      iter = g_node_next_sibling(iter)) {
 781                         recursive_add_parts(textview, iter);
 782                 }
 783         }
 784 }
 785
 786 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 787 {
 788         g_return_if_fail(mimeinfo != NULL);
 789
 790         recursive_add_parts(textview, mimeinfo->node);
 791 }
 792
 793 void textview_show_error(TextView *textview)
 794 {
 795         GtkTextView *text;
 796         GtkTextBuffer *buffer;
 797         GtkTextIter iter;
 798
 799         textview_set_font(textview, NULL);
 800         textview_clear(textview);
 801
 802         text = GTK_TEXT_VIEW(textview->text);
 803         buffer = gtk_text_view_get_buffer(text);
 804         gtk_text_buffer_get_start_iter(buffer, &iter);
 805
 806         TEXT_INSERT(_("\n"
 807                       "  This message can't be displayed.\n"
 808                       "  This is probably due to a network error.\n"
 809                       "\n"
 810                       "  Use "));
 811         TEXT_INSERT_LINK(_("'View Log'"), "sc://view_log", NULL);
 812         TEXT_INSERT(_(" in the Tools menu for more information."));
 813         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 814
 815 }
 816
 817 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 818 {
 819         GtkTextView *text;
 820         GtkTextBuffer *buffer;
 821         GtkTextIter iter;
 822
 823         if (!partinfo) return;
 824
 825         textview_set_font(textview, NULL);
 826         textview_clear(textview);
 827
 828         text = GTK_TEXT_VIEW(textview->text);
 829         buffer = gtk_text_view_get_buffer(text);
 830         gtk_text_buffer_get_start_iter(buffer, &iter);
 831
 832         TEXT_INSERT("\n");
 833         TEXT_INSERT(_("  The following can be performed on this part by\n"));
 834         TEXT_INSERT(_("  right-clicking the icon or list item:\n"));
 835
 836         TEXT_INSERT(_("     - To save, select "));
 837         TEXT_INSERT_LINK(_("'Save as...'"), "sc://save_as", NULL);
 838         TEXT_INSERT(_(" (Shortcut key: 'y')\n"));
 839         TEXT_INSERT(_("     - To display as text, select "));
 840         TEXT_INSERT_LINK(_("'Display as text'"), "sc://display_as_text", NULL);
 841         TEXT_INSERT(_(" (Shortcut key: 't')\n"));
 842         TEXT_INSERT(_("     - To open with an external program, select "));
 843         TEXT_INSERT_LINK(_("'Open'"), "sc://open", NULL);
 844         TEXT_INSERT(_(" (Shortcut key: 'l')\n"));
 845         TEXT_INSERT(_("       (alternately double-click, or click the middle "));
 846         TEXT_INSERT(_("mouse button)\n"));
 847         TEXT_INSERT(_("     - Or use "));
 848         TEXT_INSERT_LINK(_("'Open with...'"), "sc://open_with", NULL);
 849         TEXT_INSERT(_(" (Shortcut key: 'o')\n"));
 850         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 851 }
 852
 853 #undef TEXT_INSERT
 854 #undef TEXT_INSERT_LINK
 855
 856 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 857 {
 858         FILE *tmpfp;
 859         gchar buf[BUFFSIZE];
 860         CodeConverter *conv;
 861         const gchar *charset, *p, *cmd;
 862         GSList *cur;
 863
 864         if (textview->messageview->forced_charset)
 865                 charset = textview->messageview->forced_charset;
 866         else
 867                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 868
 869         textview_set_font(textview, charset);
 870
 871         conv = conv_code_converter_new(charset);
 872
 873         procmime_force_encoding(textview->messageview->forced_encoding);
 874
 875         textview->is_in_signature = FALSE;
 876
 877         procmime_decode_content(mimeinfo);
 878
 879         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 880             prefs_common.render_html) {
 881                 gchar *filename;
 882
 883                 filename = procmime_get_tmp_file_name(mimeinfo);
 884                 if (procmime_get_part(filename, mimeinfo) == 0) {
 885                         tmpfp = g_fopen(filename, "rb");
 886                         textview_show_html(textview, tmpfp, conv);
 887                         fclose(tmpfp);
 888                         g_unlink(filename);
 889                 }
 890                 g_free(filename);
 891         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 892                 gchar *filename;
 893
 894                 filename = procmime_get_tmp_file_name(mimeinfo);
 895                 if (procmime_get_part(filename, mimeinfo) == 0) {
 896                         tmpfp = g_fopen(filename, "rb");
 897                         textview_show_ertf(textview, tmpfp, conv);
 898                         fclose(tmpfp);
 899                         g_unlink(filename);
 900                 }
 901                 g_free(filename);
 902         } else if ( g_ascii_strcasecmp(mimeinfo->subtype, "plain") &&
 903                    (cmd = prefs_common.mime_textviewer) && *cmd &&
 904                    (p = strchr(cmd, '%')) && *(p + 1) == 's') {
 905                 int pid, pfd[2];
 906                 const gchar *fname;
 907
 908                 fname  = procmime_get_tmp_file_name(mimeinfo);
 909                 if (procmime_get_part(fname, mimeinfo)) goto textview_default;
 910
 911                 g_snprintf(buf, sizeof(buf), cmd, fname);
 912                 debug_print("Viewing text content of type: %s (length: %d) "
 913                         "using %s\n", mimeinfo->subtype, mimeinfo->length, buf);
 914
 915                 if (pipe(pfd) < 0) {
 916                         g_snprintf(buf, sizeof(buf),
 917                                 "pipe failed for textview\n\n%s\n", strerror(errno));
 918                         textview_write_line(textview, buf, conv);
 919                         goto textview_default;
 920                 }
 921                 pid = fork();
 922                 if (pid < 0) {
 923                         g_snprintf(buf, sizeof(buf),
 924                                 "fork failed for textview\n\n%s\n", strerror(errno));
 925                         textview_write_line(textview, buf, conv);
 926                         close(pfd[0]);
 927                         close(pfd[1]);
 928                         goto textview_default;
 929                 }
 930                 if (pid == 0) { /* child */
 931                         int rc;
 932                         gchar **argv;
 933                         argv = strsplit_with_quote(buf, " ", 0);
 934                         close(1);
 935                         close(pfd[0]);
 936                         dup(pfd[1]);
 937                         rc = execvp(argv[0], argv);
 938                         close(pfd[1]);
 939                         printf (_("The command to view attachment "
 940                                 "as text failed:\n"
 941                                 "    %s\n"
 942                                 "Exit code %d\n"), buf, rc);
 943                         exit(255);
 944                 }
 945                 close(pfd[1]);
 946                 tmpfp = fdopen(pfd[0], "rb");
 947                 while (fgets(buf, sizeof(buf), tmpfp))
 948                         textview_write_line(textview, buf, conv);
 949                 fclose(tmpfp);
 950                 waitpid(pid, pfd, 0);
 951                 unlink(fname);
 952         } else {
 953 textview_default:
 954                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 955                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 956                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 957                 while ((ftell(tmpfp) < mimeinfo->offset + mimeinfo->length) &&
 958                        (fgets(buf, sizeof(buf), tmpfp) != NULL))
 959                         textview_write_line(textview, buf, conv);
 960                 fclose(tmpfp);
 961         }
 962
 963         conv_code_converter_destroy(conv);
 964         procmime_force_encoding(0);
 965
 966         for (cur = textview->uri_list; cur; cur = cur->next) {
 967                 ClickableText *uri = (ClickableText *)cur->data;
 968                 if (!uri->is_quote)
 969                         continue;
 970                 if (!prefs_common.hide_quotes ||
 971                     uri->quote_level+1 < prefs_common.hide_quotes) {
 972                         textview_toggle_quote(textview, uri, TRUE);
 973                 }
 974         }
 975 }
 976
 977 static void textview_show_html(TextView *textview, FILE *fp,
 978                                CodeConverter *conv)
 979 {
 980         SC_HTMLParser *parser;
 981         gchar *str;
 982
 983         parser = sc_html_parser_new(fp, conv);
 984         g_return_if_fail(parser != NULL);
 985
 986         while ((str = sc_html_parse(parser)) != NULL) {
 987                 if (parser->state == SC_HTML_HREF) {
 988                         /* first time : get and copy the URL */
 989                         if (parser->href == NULL) {
 990                                 /* ALF - the sylpheed html parser returns an empty string,
 991                                  * if still inside an <a>, but already parsed past HREF */
 992                                 str = strtok(str, " ");
 993                                 if (str) {
 994                                         while (str && *str && g_ascii_isspace(*str))
 995                                                 str++;
 996                                         parser->href = g_strdup(str);
 997                                         /* the URL may (or not) be followed by the
 998                                          * referenced text */
 999                                         str = strtok(NULL, "");
1000                                 }
1001                         }
1002                         if (str != NULL)
1003                                 textview_write_link(textview, str, parser->href, NULL);
1004                 } else
1005                         textview_write_line(textview, str, NULL);
1006         }
1007         textview_write_line(textview, "\n", NULL);
1008         sc_html_parser_destroy(parser);
1009 }
1010
1011 static void textview_show_ertf(TextView *textview, FILE *fp,
1012                                CodeConverter *conv)
1013 {
1014         ERTFParser *parser;
1015         gchar *str;
1016
1017         parser = ertf_parser_new(fp, conv);
1018         g_return_if_fail(parser != NULL);
1019
1020         while ((str = ertf_parse(parser)) != NULL) {
1021                 textview_write_line(textview, str, NULL);
1022         }
1023
1024         ertf_parser_destroy(parser);
1025 }
1026
1027 #define ADD_TXT_POS(bp_, ep_, pti_) \
1028         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1029                 last = last->next; \
1030                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1031                 last->next = NULL; \
1032         } else { \
1033                 g_warning("alloc error scanning URIs\n"); \
1034                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
1035                                                          linebuf, -1, \
1036                                                          fg_tag, NULL); \
1037                 return; \
1038         }
1039
1040 #define ADD_TXT_POS_LATER(bp_, ep_, pti_) \
1041         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1042                 last = last->next; \
1043                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1044                 last->next = NULL; \
1045         } else { \
1046                 g_warning("alloc error scanning URIs\n"); \
1047         }
1048
1049 /* textview_make_clickable_parts() - colorizes clickable parts */
1050 static void textview_make_clickable_parts(TextView *textview,
1051                                           const gchar *fg_tag,
1052                                           const gchar *uri_tag,
1053                                           const gchar *linebuf,
1054                                           gboolean hdr)
1055 {
1056         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1057         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1058         GtkTextIter iter;
1059         gchar *mybuf = g_strdup(linebuf);
1060
1061         /* parse table - in order of priority */
1062         struct table {
1063                 const gchar *needle; /* token */
1064
1065                 /* token search function */
1066                 gchar    *(*search)     (const gchar *haystack,
1067                                          const gchar *needle);
1068                 /* part parsing function */
1069                 gboolean  (*parse)      (const gchar *start,
1070                                          const gchar *scanpos,
1071                                          const gchar **bp_,
1072                                          const gchar **ep_,
1073                                          gboolean hdr);
1074                 /* part to URI function */
1075                 gchar    *(*build_uri)  (const gchar *bp,
1076                                          const gchar *ep);
1077         };
1078
1079         static struct table parser[] = {
1080                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1081                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1082                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1083                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1084                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1085                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1086                 {"@",        strcasestr, get_email_part, make_email_string}
1087         };
1088         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1089
1090         gint  n;
1091         const gchar *walk, *bp, *ep;
1092
1093         struct txtpos {
1094                 const gchar     *bp, *ep;       /* text position */
1095                 gint             pti;           /* index in parse table */
1096                 struct txtpos   *next;          /* next */
1097         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1098
1099         if (!g_utf8_validate(linebuf, -1, NULL)) {
1100                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1101                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1102         }
1103
1104         gtk_text_buffer_get_end_iter(buffer, &iter);
1105
1106         /* parse for clickable parts, and build a list of begin and end positions  */
1107         for (walk = mybuf, n = 0;;) {
1108                 gint last_index = PARSE_ELEMS;
1109                 gchar *scanpos = NULL;
1110
1111                 /* FIXME: this looks phony. scanning for anything in the parse table */
1112                 for (n = 0; n < PARSE_ELEMS; n++) {
1113                         gchar *tmp;
1114
1115                         tmp = parser[n].search(walk, parser[n].needle);
1116                         if (tmp) {
1117                                 if (scanpos == NULL || tmp < scanpos) {
1118                                         scanpos = tmp;
1119                                         last_index = n;
1120                                 }
1121                         }
1122                 }
1123
1124                 if (scanpos) {
1125                         /* check if URI can be parsed */
1126                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1127                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1128                                         ADD_TXT_POS(bp, ep, last_index);
1129                                         walk = ep;
1130                         } else
1131                                 walk = scanpos +
1132                                         strlen(parser[last_index].needle);
1133                 } else
1134                         break;
1135         }
1136
1137         /* colorize this line */
1138         if (head.next) {
1139                 const gchar *normal_text = mybuf;
1140
1141                 /* insert URIs */
1142                 for (last = head.next; last != NULL;
1143                      normal_text = last->ep, last = last->next) {
1144                         ClickableText *uri;
1145                         uri = g_new0(ClickableText, 1);
1146                         if (last->bp - normal_text > 0)
1147                                 gtk_text_buffer_insert_with_tags_by_name
1148                                         (buffer, &iter,
1149                                          normal_text,
1150                                          last->bp - normal_text,
1151                                          fg_tag, NULL);
1152                         uri->uri = parser[last->pti].build_uri(last->bp,
1153                                                                last->ep);
1154                         uri->start = gtk_text_iter_get_offset(&iter);
1155                         gtk_text_buffer_insert_with_tags_by_name
1156                                 (buffer, &iter, last->bp, last->ep - last->bp,
1157                                  uri_tag, fg_tag, NULL);
1158                         uri->end = gtk_text_iter_get_offset(&iter);
1159                         uri->filename = NULL;
1160                         textview->uri_list =
1161                                 g_slist_append(textview->uri_list, uri);
1162                 }
1163
1164                 if (*normal_text)
1165                         gtk_text_buffer_insert_with_tags_by_name
1166                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1167         } else {
1168                 gtk_text_buffer_insert_with_tags_by_name
1169                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1170         }
1171         g_free(mybuf);
1172 }
1173
1174 /* textview_make_clickable_parts() - colorizes clickable parts */
1175 static void textview_make_clickable_parts_later(TextView *textview,
1176                                           gint start, gint end)
1177 {
1178         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1179         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1180         GtkTextIter start_iter, end_iter;
1181         gchar *mybuf;
1182         gint offset = 0;
1183         /* parse table - in order of priority */
1184         struct table {
1185                 const gchar *needle; /* token */
1186
1187                 /* token search function */
1188                 gchar    *(*search)     (const gchar *haystack,
1189                                          const gchar *needle);
1190                 /* part parsing function */
1191                 gboolean  (*parse)      (const gchar *start,
1192                                          const gchar *scanpos,
1193                                          const gchar **bp_,
1194                                          const gchar **ep_,
1195                                          gboolean hdr);
1196                 /* part to URI function */
1197                 gchar    *(*build_uri)  (const gchar *bp,
1198                                          const gchar *ep);
1199         };
1200
1201         static struct table parser[] = {
1202                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1203                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1204                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1205                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1206                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1207                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1208                 {"@",        strcasestr, get_email_part, make_email_string}
1209         };
1210         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1211
1212         gint  n;
1213         const gchar *walk, *bp, *ep;
1214
1215         struct txtpos {
1216                 const gchar     *bp, *ep;       /* text position */
1217                 gint             pti;           /* index in parse table */
1218                 struct txtpos   *next;          /* next */
1219         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1220
1221         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start);
1222         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end);
1223         mybuf = gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
1224         offset = gtk_text_iter_get_offset(&start_iter);
1225
1226         /* parse for clickable parts, and build a list of begin and end positions  */
1227         for (walk = mybuf, n = 0;;) {
1228                 gint last_index = PARSE_ELEMS;
1229                 gchar *scanpos = NULL;
1230
1231                 /* FIXME: this looks phony. scanning for anything in the parse table */
1232                 for (n = 0; n < PARSE_ELEMS; n++) {
1233                         gchar *tmp;
1234
1235                         tmp = parser[n].search(walk, parser[n].needle);
1236                         if (tmp) {
1237                                 if (scanpos == NULL || tmp < scanpos) {
1238                                         scanpos = tmp;
1239                                         last_index = n;
1240                                 }
1241                         }
1242                 }
1243
1244                 if (scanpos) {
1245                         /* check if URI can be parsed */
1246                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, FALSE)
1247                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1248                                         ADD_TXT_POS_LATER(bp, ep, last_index);
1249                                         walk = ep;
1250                         } else
1251                                 walk = scanpos +
1252                                         strlen(parser[last_index].needle);
1253                 } else
1254                         break;
1255         }
1256
1257         /* colorize this line */
1258         if (head.next) {
1259                 /* insert URIs */
1260                 for (last = head.next; last != NULL; last = last->next) {
1261                         ClickableText *uri;
1262                         gint start_offset, end_offset;
1263                         gchar *tmp_str;
1264                         gchar old_char;
1265                         uri = g_new0(ClickableText, 1);
1266                         uri->uri = parser[last->pti].build_uri(last->bp,
1267                                                                last->ep);
1268
1269                         tmp_str = mybuf;
1270                         old_char = tmp_str[last->ep - mybuf];
1271                         tmp_str[last->ep - mybuf] = '\0';
1272                         end_offset = g_utf8_strlen(tmp_str, -1);
1273                         tmp_str[last->ep - mybuf] = old_char;
1274
1275                         old_char = tmp_str[last->bp - mybuf];
1276                         tmp_str[last->bp - mybuf] = '\0';
1277                         start_offset = g_utf8_strlen(tmp_str, -1);
1278                         tmp_str[last->bp - mybuf] = old_char;
1279
1280                         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start_offset + offset);
1281                         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end_offset + offset);
1282
1283                         uri->start = gtk_text_iter_get_offset(&start_iter);
1284
1285                         gtk_text_buffer_apply_tag_by_name(buffer, "link", &start_iter, &end_iter);
1286
1287                         uri->end = gtk_text_iter_get_offset(&end_iter);
1288                         uri->filename = NULL;
1289                         textview->uri_list =
1290                                 g_slist_append(textview->uri_list, uri);
1291                 }
1292         }
1293
1294         g_free(mybuf);
1295 }
1296
1297 #undef ADD_TXT_POS
1298
1299 static void textview_write_line(TextView *textview, const gchar *str,
1300                                 CodeConverter *conv)
1301 {
1302         GtkTextView *text;
1303         GtkTextBuffer *buffer;
1304         GtkTextIter iter;
1305         gchar buf[BUFFSIZE];
1306         gchar *fg_color;
1307         gint quotelevel = -1, real_quotelevel = -1;
1308         gchar quote_tag_str[10];
1309
1310         text = GTK_TEXT_VIEW(textview->text);
1311         buffer = gtk_text_view_get_buffer(text);
1312         gtk_text_buffer_get_end_iter(buffer, &iter);
1313
1314         if (!conv)
1315                 strncpy2(buf, str, sizeof(buf));
1316         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1317                 conv_localetodisp(buf, sizeof(buf), str);
1318
1319         strcrchomp(buf);
1320         fg_color = NULL;
1321
1322         /* change color of quotation
1323            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1324            Up to 3 levels of quotations are detected, and each
1325            level is colored using a different color. */
1326         if (prefs_common.enable_color
1327             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1328                 real_quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1329                 quotelevel = real_quotelevel;
1330                 /* set up the correct foreground color */
1331                 if (quotelevel > 2) {
1332                         /* recycle colors */
1333                         if (prefs_common.recycle_quote_colors)
1334                                 quotelevel %= 3;
1335                         else
1336                                 quotelevel = 2;
1337                 }
1338         }
1339
1340         if (quotelevel == -1)
1341                 fg_color = NULL;
1342         else {
1343                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1344                            "quote%d", quotelevel);
1345                 fg_color = quote_tag_str;
1346         }
1347
1348         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1349                 fg_color = "signature";
1350                 textview->is_in_signature = TRUE;
1351         }
1352
1353         if (real_quotelevel > -1) {
1354                 if ( previousquotelevel != real_quotelevel ) {
1355                         ClickableText *uri;
1356                         uri = g_new0(ClickableText, 1);
1357                         uri->uri = g_strdup("");
1358                         uri->data = g_strdup(buf);
1359                         uri->start = gtk_text_iter_get_offset(&iter);
1360                         gtk_text_buffer_insert_with_tags_by_name
1361                                                 (buffer, &iter, " [...]", -1,
1362                                                  "qlink", fg_color, NULL);
1363                         uri->end = gtk_text_iter_get_offset(&iter);
1364                         uri->filename = NULL;
1365                         uri->fg_color = g_strdup(fg_color);
1366                         uri->is_quote = TRUE;
1367                         uri->quote_level = real_quotelevel;
1368                         textview->uri_list =
1369                                 g_slist_append(textview->uri_list, uri);
1370                         gtk_text_buffer_insert(buffer, &iter, "  \n", -1);
1371
1372                         previousquotelevel = real_quotelevel;
1373                 } else {
1374                         GSList *last = g_slist_last(textview->uri_list);
1375                         ClickableText *lasturi = (ClickableText *)last->data;
1376                         gchar *tmp = g_strdup_printf("%s%s", (gchar *)lasturi->data, buf);
1377                         g_free(lasturi->data);
1378                         lasturi->data = tmp;
1379                 }
1380         } else {
1381                 textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1382                 previousquotelevel = -1;
1383         }
1384 }
1385
1386 void textview_write_link(TextView *textview, const gchar *str,
1387                          const gchar *uri, CodeConverter *conv)
1388 {
1389         GdkColor *link_color = NULL;
1390         GtkTextView *text;
1391         GtkTextBuffer *buffer;
1392         GtkTextIter iter;
1393         gchar buf[BUFFSIZE];
1394         gchar *bufp;
1395         ClickableText *r_uri;
1396
1397         if (!str || *str == '\0')
1398                 return;
1399         if (!uri)
1400                 return;
1401
1402         while (uri && *uri && g_ascii_isspace(*uri))
1403                 uri++;
1404
1405         text = GTK_TEXT_VIEW(textview->text);
1406         buffer = gtk_text_view_get_buffer(text);
1407         gtk_text_buffer_get_end_iter(buffer, &iter);
1408
1409         if (!conv)
1410                 strncpy2(buf, str, sizeof(buf));
1411         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1412                 conv_utf8todisp(buf, sizeof(buf), str);
1413
1414         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1415                 return;
1416
1417         strcrchomp(buf);
1418
1419         gtk_text_buffer_get_end_iter(buffer, &iter);
1420         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1421                 gunichar ch;
1422
1423                 ch = g_utf8_get_char(bufp);
1424                 if (!g_unichar_isspace(ch))
1425                         break;
1426         }
1427         if (bufp > buf)
1428                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1429
1430         if (prefs_common.enable_color) {
1431                 link_color = &uri_color;
1432         }
1433         r_uri = g_new0(ClickableText, 1);
1434         r_uri->uri = g_strdup(uri);
1435         r_uri->start = gtk_text_iter_get_offset(&iter);
1436         gtk_text_buffer_insert_with_tags_by_name
1437                 (buffer, &iter, bufp, -1, "link", NULL);
1438         r_uri->end = gtk_text_iter_get_offset(&iter);
1439         r_uri->filename = NULL;
1440         textview->uri_list = g_slist_append(textview->uri_list, r_uri);
1441 }
1442
1443 static void textview_set_cursor(GdkWindow *window, GdkCursor *cursor)
1444 {
1445         if (GDK_IS_WINDOW(window))
1446                 gdk_window_set_cursor(window, cursor);
1447 }
1448 void textview_clear(TextView *textview)
1449 {
1450         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1451         GtkTextBuffer *buffer;
1452         GdkWindow *window = gtk_text_view_get_window(text,
1453                                 GTK_TEXT_WINDOW_TEXT);
1454
1455         buffer = gtk_text_view_get_buffer(text);
1456         gtk_text_buffer_set_text(buffer, "", -1);
1457
1458         TEXTVIEW_STATUSBAR_POP(textview);
1459         textview_uri_list_remove_all(textview->uri_list);
1460         textview->uri_list = NULL;
1461         textview->uri_hover = NULL;
1462
1463         textview->body_pos = 0;
1464         if (textview->image)
1465                 gtk_widget_destroy(textview->image);
1466         textview->image = NULL;
1467
1468         if (textview->messageview->mainwin->cursor_count == 0) {
1469                 textview_set_cursor(window, text_cursor);
1470         } else {
1471                 textview_set_cursor(window, watch_cursor);
1472         }
1473 }
1474
1475 void textview_destroy(TextView *textview)
1476 {
1477         textview_uri_list_remove_all(textview->uri_list);
1478         textview->uri_list = NULL;
1479
1480         g_free(textview);
1481 }
1482
1483 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1484 {
1485         textview->show_all_headers = all_headers;
1486 }
1487
1488 #define CHANGE_TAG_FONT(tagname, font) { \
1489         tag = gtk_text_tag_table_lookup(tags, tagname); \
1490         if (tag) \
1491                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1492 }
1493
1494 void textview_set_font(TextView *textview, const gchar *codeset)
1495 {
1496         GtkTextTag *tag;
1497         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1498         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1499
1500         if (NORMAL_FONT) {
1501                 PangoFontDescription *font_desc, *bold_font_desc;
1502                 font_desc = pango_font_description_from_string
1503                                                 (NORMAL_FONT);
1504                 bold_font_desc = pango_font_description_from_string
1505                                                 (NORMAL_FONT);
1506                 if (font_desc) {
1507                         gtk_widget_modify_font(textview->text, font_desc);
1508                         CHANGE_TAG_FONT("header", font_desc);
1509                         pango_font_description_free(font_desc);
1510                 }
1511                 if (bold_font_desc) {
1512                         pango_font_description_set_weight
1513                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1514                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1515                         pango_font_description_free(bold_font_desc);
1516                 }
1517         }
1518
1519         if (prefs_common.textfont) {
1520                 PangoFontDescription *font_desc;
1521
1522                 font_desc = pango_font_description_from_string
1523                                                 (prefs_common.textfont);
1524                 if (font_desc) {
1525                         gtk_widget_modify_font(textview->text, font_desc);
1526                         pango_font_description_free(font_desc);
1527                 }
1528         }
1529         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1530                                              prefs_common.line_space / 2);
1531         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1532                                              prefs_common.line_space / 2);
1533 }
1534
1535 void textview_set_text(TextView *textview, const gchar *text)
1536 {
1537         GtkTextView *view;
1538         GtkTextBuffer *buffer;
1539
1540         g_return_if_fail(textview != NULL);
1541         g_return_if_fail(text != NULL);
1542
1543         textview_clear(textview);
1544
1545         view = GTK_TEXT_VIEW(textview->text);
1546         buffer = gtk_text_view_get_buffer(view);
1547         gtk_text_buffer_set_text(buffer, text, strlen(text));
1548 }
1549
1550 enum
1551 {
1552         H_DATE          = 0,
1553         H_FROM          = 1,
1554         H_TO            = 2,
1555         H_NEWSGROUPS    = 3,
1556         H_SUBJECT       = 4,
1557         H_CC            = 5,
1558         H_REPLY_TO      = 6,
1559         H_FOLLOWUP_TO   = 7,
1560         H_X_MAILER      = 8,
1561         H_X_NEWSREADER  = 9,
1562         H_USER_AGENT    = 10,
1563         H_ORGANIZATION  = 11,
1564 };
1565
1566 void textview_set_position(TextView *textview, gint pos)
1567 {
1568         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1569
1570         gtkut_text_view_set_position(text, pos);
1571 }
1572
1573 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1574 {
1575         gchar buf[BUFFSIZE];
1576         GPtrArray *headers, *sorted_headers;
1577         GSList *disphdr_list;
1578         Header *header;
1579         gint i;
1580
1581         g_return_val_if_fail(fp != NULL, NULL);
1582
1583         if (textview->show_all_headers)
1584                 return procheader_get_header_array_asis(fp);
1585
1586         if (!prefs_common.display_header) {
1587                 while (fgets(buf, sizeof(buf), fp) != NULL)
1588                         if (buf[0] == '\r' || buf[0] == '\n') break;
1589                 return NULL;
1590         }
1591
1592         headers = procheader_get_header_array_asis(fp);
1593
1594         sorted_headers = g_ptr_array_new();
1595
1596         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1597              disphdr_list = disphdr_list->next) {
1598                 DisplayHeaderProp *dp =
1599                         (DisplayHeaderProp *)disphdr_list->data;
1600
1601                 for (i = 0; i < headers->len; i++) {
1602                         header = g_ptr_array_index(headers, i);
1603
1604                         if (procheader_headername_equal(header->name,
1605                                                         dp->name)) {
1606                                 if (dp->hidden)
1607                                         procheader_header_free(header);
1608                                 else
1609                                         g_ptr_array_add(sorted_headers, header);
1610
1611                                 g_ptr_array_remove_index(headers, i);
1612                                 i--;
1613                         }
1614                 }
1615         }
1616
1617         if (prefs_common.show_other_header) {
1618                 for (i = 0; i < headers->len; i++) {
1619                         header = g_ptr_array_index(headers, i);
1620                         g_ptr_array_add(sorted_headers, header);
1621                 }
1622                 g_ptr_array_free(headers, TRUE);
1623         } else
1624                 procheader_header_array_destroy(headers);
1625
1626
1627         return sorted_headers;
1628 }
1629
1630 static void textview_show_face(TextView *textview)
1631 {
1632         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1633         MsgInfo *msginfo = textview->messageview->msginfo;
1634         int x = 0;
1635
1636         if (prefs_common.display_header_pane
1637         ||  !prefs_common.display_xface)
1638                 goto bail;
1639
1640         if (!msginfo->face) {
1641                 goto bail;
1642         }
1643
1644         if (textview->image)
1645                 gtk_widget_destroy(textview->image);
1646
1647         textview->image = face_get_from_header(msginfo->face);
1648         g_return_if_fail(textview->image != NULL);
1649
1650         gtk_widget_show(textview->image);
1651
1652         x = textview->text->allocation.width - WIDTH -5;
1653
1654         gtk_text_view_add_child_in_window(text, textview->image,
1655                 GTK_TEXT_WINDOW_TEXT, x, 5);
1656
1657         gtk_widget_show_all(textview->text);
1658
1659
1660         return;
1661 bail:
1662         if (textview->image)
1663                 gtk_widget_destroy(textview->image);
1664         textview->image = NULL;
1665 }
1666
1667 static void textview_show_icon(TextView *textview, const gchar *stock_id)
1668 {
1669         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1670         int x = 0;
1671
1672         if (textview->image)
1673                 gtk_widget_destroy(textview->image);
1674
1675         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
1676         g_return_if_fail(textview->image != NULL);
1677
1678         gtk_widget_show(textview->image);
1679
1680         x = textview->text->allocation.width - WIDTH -5;
1681
1682         gtk_text_view_add_child_in_window(text, textview->image,
1683                 GTK_TEXT_WINDOW_TEXT, x, 5);
1684
1685         gtk_widget_show_all(textview->text);
1686
1687
1688         return;
1689 }
1690
1691 #if HAVE_LIBCOMPFACE
1692 static void textview_show_xface(TextView *textview)
1693 {
1694         MsgInfo *msginfo = textview->messageview->msginfo;
1695         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1696         int x = 0;
1697
1698         if (prefs_common.display_header_pane
1699         ||  !prefs_common.display_xface)
1700                 goto bail;
1701
1702         if (!msginfo)
1703                 goto bail;
1704
1705         if (msginfo->face)
1706                 return;
1707
1708         if (!msginfo->xface || strlen(msginfo->xface) < 5) {
1709                 goto bail;
1710         }
1711
1712         if (textview->image)
1713                 gtk_widget_destroy(textview->image);
1714
1715         textview->image = xface_get_from_header(msginfo->xface,
1716                                 &textview->text->style->white,
1717                                 textview->text->window);
1718         g_return_if_fail(textview->image != NULL);
1719
1720         gtk_widget_show(textview->image);
1721
1722         x = textview->text->allocation.width - WIDTH -5;
1723
1724         gtk_text_view_add_child_in_window(text, textview->image,
1725                 GTK_TEXT_WINDOW_TEXT, x, 5);
1726
1727         gtk_widget_show_all(textview->text);
1728
1729         return;
1730 bail:
1731         if (textview->image)
1732                 gtk_widget_destroy(textview->image);
1733         textview->image = NULL;
1734
1735 }
1736 #endif
1737
1738 static void textview_show_header(TextView *textview, GPtrArray *headers)
1739 {
1740         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1741         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1742         GtkTextIter iter;
1743         Header *header;
1744         gint i;
1745
1746         g_return_if_fail(headers != NULL);
1747
1748         for (i = 0; i < headers->len; i++) {
1749                 header = g_ptr_array_index(headers, i);
1750                 g_return_if_fail(header->name != NULL);
1751
1752                 gtk_text_buffer_get_end_iter (buffer, &iter);
1753                 if(prefs_common.trans_hdr == TRUE) {
1754                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
1755                         gchar *trans_hdr = gettext(hdr);
1756                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1757                                 &iter, trans_hdr, -1,
1758                                 "header_title", "header", NULL);
1759                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1760                                 &iter, ":", 1, "header_title", "header", NULL);
1761                         g_free(hdr);
1762                 } else {
1763                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1764                                 &iter, header->name,
1765                                 -1, "header_title", "header", NULL);
1766                 }
1767                 if (header->name[strlen(header->name) - 1] != ' ')
1768                 gtk_text_buffer_insert_with_tags_by_name
1769                                 (buffer, &iter, " ", 1,
1770                                  "header_title", "header", NULL);
1771
1772                 if (procheader_headername_equal(header->name, "Subject") ||
1773                     procheader_headername_equal(header->name, "From")    ||
1774                     procheader_headername_equal(header->name, "To")      ||
1775                     procheader_headername_equal(header->name, "Cc"))
1776                         unfold_line(header->body);
1777
1778                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1779                      procheader_headername_equal(header->name,
1780                                                  "X-Newsreader")) &&
1781                     strstr(header->body, "Sylpheed-Claws") != NULL) {
1782                         gtk_text_buffer_get_end_iter (buffer, &iter);
1783                         gtk_text_buffer_insert_with_tags_by_name
1784                                 (buffer, &iter, header->body, -1,
1785                                  "header", "emphasis", NULL);
1786                 } else {
1787                         gboolean hdr =
1788                           procheader_headername_equal(header->name, "From") ||
1789                           procheader_headername_equal(header->name, "To") ||
1790                           procheader_headername_equal(header->name, "Cc") ||
1791                           procheader_headername_equal(header->name, "Bcc") ||
1792                           procheader_headername_equal(header->name, "Reply-To") ||
1793                           procheader_headername_equal(header->name, "Sender");
1794                         textview_make_clickable_parts(textview, "header",
1795                                                       "link", header->body,
1796                                                       hdr);
1797                 }
1798                 gtk_text_buffer_get_end_iter (buffer, &iter);
1799                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1800                                                          "header", NULL);
1801         }
1802
1803         textview_show_face(textview);
1804 #if HAVE_LIBCOMPFACE
1805         textview_show_xface(textview);
1806 #endif
1807 }
1808
1809 gboolean textview_search_string(TextView *textview, const gchar *str,
1810                                 gboolean case_sens)
1811 {
1812         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1813
1814         return gtkut_text_view_search_string(text, str, case_sens);
1815 }
1816
1817 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1818                                          gboolean case_sens)
1819 {
1820         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1821
1822         return gtkut_text_view_search_string_backward(text, str, case_sens);
1823 }
1824
1825 void textview_scroll_one_line(TextView *textview, gboolean up)
1826 {
1827         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1828         GtkAdjustment *vadj = text->vadjustment;
1829         gfloat upper;
1830
1831         if (prefs_common.enable_smooth_scroll) {
1832                 textview_smooth_scroll_one_line(textview, up);
1833                 return;
1834         }
1835
1836         if (!up) {
1837                 upper = vadj->upper - vadj->page_size;
1838                 if (vadj->value < upper) {
1839                         vadj->value += vadj->step_increment;
1840                         vadj->value = MIN(vadj->value, upper);
1841                         g_signal_emit_by_name(G_OBJECT(vadj),
1842                                               "value_changed", 0);
1843                 }
1844         } else {
1845                 if (vadj->value > 0.0) {
1846                         vadj->value -= vadj->step_increment;
1847                         vadj->value = MAX(vadj->value, 0.0);
1848                         g_signal_emit_by_name(G_OBJECT(vadj),
1849                                               "value_changed", 0);
1850                 }
1851         }
1852 }
1853
1854 gboolean textview_scroll_page(TextView *textview, gboolean up)
1855 {
1856         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1857         GtkAdjustment *vadj = text->vadjustment;
1858         gfloat upper;
1859         gfloat page_incr;
1860
1861         if (prefs_common.enable_smooth_scroll)
1862                 return textview_smooth_scroll_page(textview, up);
1863
1864         if (prefs_common.scroll_halfpage)
1865                 page_incr = vadj->page_increment / 2;
1866         else
1867                 page_incr = vadj->page_increment;
1868
1869         if (!up) {
1870                 upper = vadj->upper - vadj->page_size;
1871                 if (vadj->value < upper) {
1872                         vadj->value += page_incr;
1873                         vadj->value = MIN(vadj->value, upper);
1874                         g_signal_emit_by_name(G_OBJECT(vadj),
1875                                               "value_changed", 0);
1876                 } else
1877                         return FALSE;
1878         } else {
1879                 if (vadj->value > 0.0) {
1880                         vadj->value -= page_incr;
1881                         vadj->value = MAX(vadj->value, 0.0);
1882                         g_signal_emit_by_name(G_OBJECT(vadj),
1883                                               "value_changed", 0);
1884                 } else
1885                         return FALSE;
1886         }
1887
1888         return TRUE;
1889 }
1890
1891 static void textview_smooth_scroll_do(TextView *textview,
1892                                       gfloat old_value, gfloat last_value,
1893                                       gint step)
1894 {
1895         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1896         GtkAdjustment *vadj = text->vadjustment;
1897         gint change_value;
1898         gboolean up;
1899         gint i;
1900
1901         if (old_value < last_value) {
1902                 change_value = last_value - old_value;
1903                 up = FALSE;
1904         } else {
1905                 change_value = old_value - last_value;
1906                 up = TRUE;
1907         }
1908
1909         for (i = step; i <= change_value; i += step) {
1910                 vadj->value = old_value + (up ? -i : i);
1911                 g_signal_emit_by_name(G_OBJECT(vadj),
1912                                       "value_changed", 0);
1913         }
1914
1915         vadj->value = last_value;
1916         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1917
1918         gtk_widget_queue_draw(GTK_WIDGET(text));
1919 }
1920
1921 static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
1922 {
1923         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1924         GtkAdjustment *vadj = text->vadjustment;
1925         gfloat upper;
1926         gfloat old_value;
1927         gfloat last_value;
1928
1929         if (!up) {
1930                 upper = vadj->upper - vadj->page_size;
1931                 if (vadj->value < upper) {
1932                         old_value = vadj->value;
1933                         last_value = vadj->value + vadj->step_increment;
1934                         last_value = MIN(last_value, upper);
1935
1936                         textview_smooth_scroll_do(textview, old_value,
1937                                                   last_value,
1938                                                   prefs_common.scroll_step);
1939                 }
1940         } else {
1941                 if (vadj->value > 0.0) {
1942                         old_value = vadj->value;
1943                         last_value = vadj->value - vadj->step_increment;
1944                         last_value = MAX(last_value, 0.0);
1945
1946                         textview_smooth_scroll_do(textview, old_value,
1947                                                   last_value,
1948                                                   prefs_common.scroll_step);
1949                 }
1950         }
1951 }
1952
1953 static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
1954 {
1955         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1956         GtkAdjustment *vadj = text->vadjustment;
1957         gfloat upper;
1958         gfloat page_incr;
1959         gfloat old_value;
1960         gfloat last_value;
1961
1962         if (prefs_common.scroll_halfpage)
1963                 page_incr = vadj->page_increment / 2;
1964         else
1965                 page_incr = vadj->page_increment;
1966
1967         if (!up) {
1968                 upper = vadj->upper - vadj->page_size;
1969                 if (vadj->value < upper) {
1970                         old_value = vadj->value;
1971                         last_value = vadj->value + page_incr;
1972                         last_value = MIN(last_value, upper);
1973
1974                         textview_smooth_scroll_do(textview, old_value,
1975                                                   last_value,
1976                                                   prefs_common.scroll_step);
1977                 } else
1978                         return FALSE;
1979         } else {
1980                 if (vadj->value > 0.0) {
1981                         old_value = vadj->value;
1982                         last_value = vadj->value - page_incr;
1983                         last_value = MAX(last_value, 0.0);
1984
1985                         textview_smooth_scroll_do(textview, old_value,
1986                                                   last_value,
1987                                                   prefs_common.scroll_step);
1988                 } else
1989                         return FALSE;
1990         }
1991
1992         return TRUE;
1993 }
1994
1995 #define KEY_PRESS_EVENT_STOP() \
1996         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1997                                        "key_press_event");
1998
1999 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
2000                                  TextView *textview)
2001 {
2002         SummaryView *summaryview = NULL;
2003         MessageView *messageview = textview->messageview;
2004
2005         if (!event) return FALSE;
2006         if (messageview->mainwin)
2007                 summaryview = messageview->mainwin->summaryview;
2008
2009         switch (event->keyval) {
2010         case GDK_Tab:
2011         case GDK_Home:
2012         case GDK_Left:
2013         case GDK_Up:
2014         case GDK_Right:
2015         case GDK_Down:
2016         case GDK_Page_Up:
2017         case GDK_Page_Down:
2018         case GDK_End:
2019         case GDK_Control_L:
2020         case GDK_Control_R:
2021                 return FALSE;
2022         case GDK_space:
2023                 if (summaryview)
2024                         summary_pass_key_press_event(summaryview, event);
2025                 else
2026                         textview_scroll_page
2027                                 (textview,
2028                                  (event->state &
2029                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2030                 break;
2031         case GDK_BackSpace:
2032                 textview_scroll_page(textview, TRUE);
2033                 break;
2034         case GDK_Return:
2035                 textview_scroll_one_line
2036                         (textview, (event->state &
2037                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2038                 break;
2039         case GDK_Delete:
2040                 if (summaryview)
2041                         summary_pass_key_press_event(summaryview, event);
2042                 break;
2043         case GDK_y:
2044         case GDK_t:
2045         case GDK_l:
2046         case GDK_c:
2047                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
2048                         KEY_PRESS_EVENT_STOP();
2049                         mimeview_pass_key_press_event(messageview->mimeview,
2050                                                       event);
2051                         break;
2052                 }
2053                 /* possible fall through */
2054         default:
2055                 if (summaryview &&
2056                     event->window != messageview->mainwin->window->window) {
2057                         GdkEventKey tmpev = *event;
2058
2059                         tmpev.window = messageview->mainwin->window->window;
2060                         KEY_PRESS_EVENT_STOP();
2061                         gtk_widget_event(messageview->mainwin->window,
2062                                          (GdkEvent *)&tmpev);
2063                 }
2064                 break;
2065         }
2066
2067         return TRUE;
2068 }
2069
2070 static gboolean textview_motion_notify(GtkWidget *widget,
2071                                        GdkEventMotion *event,
2072                                        TextView *textview)
2073 {
2074         textview_uri_update(textview, event->x, event->y);
2075         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
2076
2077         return FALSE;
2078 }
2079
2080 static gboolean textview_leave_notify(GtkWidget *widget,
2081                                       GdkEventCrossing *event,
2082                                       TextView *textview)
2083 {
2084         textview_uri_update(textview, -1, -1);
2085
2086         return FALSE;
2087 }
2088
2089 static gboolean textview_visibility_notify(GtkWidget *widget,
2090                                            GdkEventVisibility *event,
2091                                            TextView *textview)
2092 {
2093         gint wx, wy;
2094         GdkWindow *window;
2095
2096         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
2097                                           GTK_TEXT_WINDOW_TEXT);
2098
2099         /* check if occurred for the text window part */
2100         if (window != event->window)
2101                 return FALSE;
2102
2103         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
2104         textview_uri_update(textview, wx, wy);
2105
2106         return FALSE;
2107 }
2108
2109 void textview_cursor_wait(TextView *textview)
2110 {
2111         GdkWindow *window = gtk_text_view_get_window(
2112                         GTK_TEXT_VIEW(textview->text),
2113                         GTK_TEXT_WINDOW_TEXT);
2114         textview_set_cursor(window, watch_cursor);
2115 }
2116
2117 void textview_cursor_normal(TextView *textview)
2118 {
2119         GdkWindow *window = gtk_text_view_get_window(
2120                         GTK_TEXT_VIEW(textview->text),
2121                         GTK_TEXT_WINDOW_TEXT);
2122         textview_set_cursor(window, text_cursor);
2123 }
2124
2125 static void textview_uri_update(TextView *textview, gint x, gint y)
2126 {
2127         GtkTextBuffer *buffer;
2128         GtkTextIter start_iter, end_iter;
2129         ClickableText *uri = NULL;
2130
2131         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2132
2133         if (x != -1 && y != -1) {
2134                 gint bx, by;
2135                 GtkTextIter iter;
2136                 GSList *tags;
2137                 GSList *cur;
2138
2139                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
2140                                                       GTK_TEXT_WINDOW_WIDGET,
2141                                                       x, y, &bx, &by);
2142                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
2143                                                    &iter, bx, by);
2144
2145                 tags = gtk_text_iter_get_tags(&iter);
2146                 for (cur = tags; cur != NULL; cur = cur->next) {
2147                         GtkTextTag *tag = cur->data;
2148                         char *name;
2149
2150                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
2151
2152                         if ((!strcmp(name, "link"))
2153                             && textview_get_uri_range(textview, &iter, tag,
2154                                                       &start_iter, &end_iter)) {
2155
2156                                 uri = textview_get_uri_from_range(textview,
2157                                                                   &iter, tag,
2158                                                                   &start_iter,
2159                                                                   &end_iter);
2160                         }
2161                         g_free(name);
2162                         if (uri)
2163                                 break;
2164                 }
2165                 g_slist_free(tags);
2166         }
2167
2168         if (uri != textview->uri_hover) {
2169                 GdkWindow *window;
2170
2171                 if (textview->uri_hover)
2172                         gtk_text_buffer_remove_tag_by_name(buffer,
2173                                                            "link-hover",
2174                                                            &textview->uri_hover_start_iter,
2175                                                            &textview->uri_hover_end_iter);
2176
2177                 textview->uri_hover = uri;
2178                 if (uri) {
2179                         textview->uri_hover_start_iter = start_iter;
2180                         textview->uri_hover_end_iter = end_iter;
2181                 }
2182
2183                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
2184                                                   GTK_TEXT_WINDOW_TEXT);
2185                 if (textview->messageview->mainwin->cursor_count == 0) {
2186                         textview_set_cursor(window, uri ? hand_cursor : text_cursor);
2187                 } else {
2188                         textview_set_cursor(window, watch_cursor);
2189                 }
2190
2191                 TEXTVIEW_STATUSBAR_POP(textview);
2192
2193                 if (uri) {
2194                         char *trimmed_uri;
2195
2196                         if (!uri->is_quote)
2197                                 gtk_text_buffer_apply_tag_by_name(buffer,
2198                                                           "link-hover",
2199                                                           &start_iter,
2200                                                           &end_iter);
2201
2202                         trimmed_uri = trim_string(uri->uri, 60);
2203                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
2204                         g_free(trimmed_uri);
2205                 }
2206         }
2207 }
2208
2209 static gboolean textview_get_uri_range(TextView *textview,
2210                                        GtkTextIter *iter,
2211                                        GtkTextTag *tag,
2212                                        GtkTextIter *start_iter,
2213                                        GtkTextIter *end_iter)
2214 {
2215         return get_tag_range(iter, tag, start_iter, end_iter);
2216 }
2217
2218 static ClickableText *textview_get_uri_from_range(TextView *textview,
2219                                               GtkTextIter *iter,
2220                                               GtkTextTag *tag,
2221                                               GtkTextIter *start_iter,
2222                                               GtkTextIter *end_iter)
2223 {
2224         gint start_pos, end_pos, cur_pos;
2225         ClickableText *uri = NULL;
2226         GSList *cur;
2227
2228         start_pos = gtk_text_iter_get_offset(start_iter);
2229         end_pos = gtk_text_iter_get_offset(end_iter);
2230         cur_pos = gtk_text_iter_get_offset(iter);
2231
2232         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
2233                 ClickableText *uri_ = (ClickableText *)cur->data;
2234                 if (start_pos == uri_->start &&
2235                     end_pos ==  uri_->end) {
2236                         uri = uri_;
2237                         break;
2238                 }
2239         }
2240         for (cur = textview->uri_list; uri == NULL && cur != NULL; cur = cur->next) {
2241                 ClickableText *uri_ = (ClickableText *)cur->data;
2242                 if (start_pos == uri_->start ||
2243                            end_pos == uri_->end) {
2244                         /* in case of contiguous links, textview_get_uri_range
2245                          * returns a broader range (start of 1st link to end
2246                          * of last link).
2247                          * In that case, correct link is the one covering
2248                          * current iter.
2249                          */
2250                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
2251                                 uri = uri_;
2252                                 break;
2253                         }
2254                 }
2255         }
2256
2257         return uri;
2258 }
2259
2260 static ClickableText *textview_get_uri(TextView *textview,
2261                                    GtkTextIter *iter,
2262                                    GtkTextTag *tag)
2263 {
2264         GtkTextIter start_iter, end_iter;
2265         ClickableText *uri = NULL;
2266
2267         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2268                                    &end_iter))
2269                 uri = textview_get_uri_from_range(textview, iter, tag,
2270                                                   &start_iter, &end_iter);
2271
2272         return uri;
2273 }
2274
2275 static void textview_shift_uris_after(TextView *textview, gint start, gint shift)
2276 {
2277         GSList *cur;
2278         for (cur = textview->uri_list; cur; cur = cur->next) {
2279                 ClickableText *uri = (ClickableText *)cur->data;
2280                 if (uri->start <= start)
2281                         continue;
2282                 uri->start += shift;
2283                 uri->end += shift;
2284         }
2285 }
2286
2287 static void textview_remove_uris_in(TextView *textview, gint start, gint end)
2288 {
2289         GSList *cur;
2290         for (cur = textview->uri_list; cur; ) {
2291                 ClickableText *uri = (ClickableText *)cur->data;
2292                 if (uri->start > start && uri->end < end) {
2293                         cur = cur->next;
2294                         textview->uri_list = g_slist_remove(textview->uri_list, uri);
2295                         g_free(uri->uri);
2296                         g_free(uri->filename);
2297                         if (uri->is_quote) {
2298                                 g_free(uri->fg_color);
2299                                 g_free(uri->data);
2300                                 /* (only free data in quotes uris) */
2301                         }
2302                         g_free(uri);
2303                 } else {
2304                         cur = cur->next;
2305                 }
2306
2307         }
2308 }
2309
2310 static void textview_toggle_quote(TextView *textview, ClickableText *uri, gboolean expand_only)
2311 {
2312         GtkTextIter start, end;
2313         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2314
2315         if (!uri->is_quote)
2316                 return;
2317
2318         if (uri->q_expanded && expand_only)
2319                 return;
2320
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         if (textview->uri_hover)
2324                 gtk_text_buffer_remove_tag_by_name(buffer,
2325                                                    "link-hover",
2326                                                    &textview->uri_hover_start_iter,
2327                                                    &textview->uri_hover_end_iter);
2328         textview->uri_hover = NULL;
2329         gtk_text_buffer_remove_tag_by_name(buffer,
2330                                            "qlink",
2331                                            &start,
2332                                            &end);
2333         /* when shifting URIs start and end, we have to do it per-UTF8-char
2334          * so use g_utf8_strlen(). OTOH, when inserting in the text buffer,
2335          * we have to pass a number of bytes, so use strlen(). disturbing. */
2336
2337         if (!uri->q_expanded) {
2338                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2339                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2340                 textview_shift_uris_after(textview, uri->start,
2341                         g_utf8_strlen((gchar *)uri->data, -1)-strlen(" [...]\n"));
2342                 gtk_text_buffer_delete(buffer, &start, &end);
2343                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2344                 gtk_text_buffer_insert_with_tags_by_name
2345                                 (buffer, &start, (gchar *)uri->data,
2346                                  strlen((gchar *)uri->data)-1,
2347                                  "qlink", (gchar *)uri->fg_color, NULL);
2348                 uri->end = gtk_text_iter_get_offset(&start);
2349                 textview_make_clickable_parts_later(textview,
2350                                           uri->start, uri->end);
2351                 uri->q_expanded = TRUE;
2352         } else {
2353                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2354                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2355                 textview_remove_uris_in(textview, uri->start, uri->end);
2356                 textview_shift_uris_after(textview, uri->start,
2357                         strlen(" [...]\n")-g_utf8_strlen((gchar *)uri->data, -1));
2358                 gtk_text_buffer_delete(buffer, &start, &end);
2359                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2360                 gtk_text_buffer_insert_with_tags_by_name
2361                                 (buffer, &start, " [...]", -1,
2362                                  "qlink", (gchar *)uri->fg_color, NULL);
2363                 uri->end = gtk_text_iter_get_offset(&start);
2364                 uri->q_expanded = FALSE;
2365         }
2366         if (textview->messageview->mainwin->cursor_count == 0) {
2367                 textview_cursor_normal(textview);
2368         } else {
2369                 textview_cursor_wait(textview);
2370         }
2371 }
2372 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2373                                             GdkEvent *event, GtkTextIter *iter,
2374                                             TextView *textview)
2375 {
2376         GdkEventButton *bevent;
2377         ClickableText *uri = NULL;
2378         char *tagname;
2379         gboolean qlink = FALSE;
2380
2381         if (!event)
2382                 return FALSE;
2383
2384         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2385                 && event->type != GDK_MOTION_NOTIFY)
2386                 return FALSE;
2387
2388         uri = textview_get_uri(textview, iter, tag);
2389         if (!uri)
2390                 return FALSE;
2391
2392         g_object_get(G_OBJECT(tag), "name", &tagname, NULL);
2393
2394         if (!strcmp(tagname, "qlink"))
2395                 qlink = TRUE;
2396
2397         g_free(tagname);
2398
2399         bevent = (GdkEventButton *) event;
2400
2401         /* doubleclick: open compose / add address / browser */
2402         if (qlink && event->type == GDK_BUTTON_PRESS && bevent->button != 1) {
2403                 /* pass rightclick through */
2404                 return FALSE;
2405         } else if ((event->type == (qlink ? GDK_2BUTTON_PRESS:GDK_BUTTON_PRESS) && bevent->button == 1) ||
2406                 bevent->button == 2 || bevent->button == 3) {
2407                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2408                         MimeView *mimeview =
2409                                 (textview->messageview)?
2410                                         textview->messageview->mimeview:NULL;
2411                         if (mimeview && bevent->button == 1) {
2412                                 mimeview_handle_cmd(mimeview, uri->filename, NULL, uri->data);
2413                         } else if (mimeview && bevent->button == 2 &&
2414                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2415                                 mimeview_handle_cmd(mimeview, "sc://open_attachment", NULL, uri->data);
2416                         } else if (mimeview && bevent->button == 3 &&
2417                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2418                                 mimeview_handle_cmd(mimeview, "sc://menu_attachment", bevent, uri->data);
2419                         }
2420                         return TRUE;
2421                 } else if (qlink && bevent->button == 1) {
2422                         textview_toggle_quote(textview, uri, FALSE);
2423                         return TRUE;
2424                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2425                         if (bevent->button == 3) {
2426                                 g_object_set_data(
2427                                         G_OBJECT(textview->mail_popup_menu),
2428                                         "menu_button", uri);
2429                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2430                                                NULL, NULL, NULL, NULL,
2431                                                bevent->button, bevent->time);
2432                         } else {
2433                                 PrefsAccount *account = NULL;
2434
2435                                 if (textview->messageview && textview->messageview->msginfo &&
2436                                     textview->messageview->msginfo->folder) {
2437                                         FolderItem   *folder_item;
2438
2439                                         folder_item = textview->messageview->msginfo->folder;
2440                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2441                                                 account = account_find_from_id(folder_item->prefs->default_account);
2442                                 }
2443                                 compose_new(account, uri->uri + 7, NULL);
2444                         }
2445                         return TRUE;
2446                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2447                         if (bevent->button == 1 &&
2448                             textview_uri_security_check(textview, uri) == TRUE)
2449                                         open_uri(uri->uri,
2450                                                  prefs_common.uri_cmd);
2451                         else if (bevent->button == 3 && !qlink) {
2452                                 g_object_set_data(
2453                                         G_OBJECT(textview->link_popup_menu),
2454                                         "menu_button", uri);
2455                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2456                                                NULL, NULL, NULL, NULL,
2457                                                bevent->button, bevent->time);
2458                         }
2459                         return TRUE;
2460                 } else {
2461                         if (bevent->button == 3 && !qlink) {
2462                                 g_object_set_data(
2463                                         G_OBJECT(textview->file_popup_menu),
2464                                         "menu_button", uri);
2465                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2466                                                NULL, NULL, NULL, NULL,
2467                                                bevent->button, bevent->time);
2468                                 return TRUE;
2469                         }
2470                 }
2471         }
2472
2473         return FALSE;
2474 }
2475
2476 /*!
2477  *\brief    Check to see if a web URL has been disguised as a different
2478  *          URL (possible with HTML email).
2479  *
2480  *\param    uri The uri to check
2481  *
2482  *\param    textview The TextView the URL is contained in
2483  *
2484  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2485  *          it anyway, otherwise FALSE
2486  */
2487 static gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
2488 {
2489         gchar *visible_str;
2490         gboolean retval = TRUE;
2491         GtkTextBuffer *buffer;
2492         GtkTextIter start, end;
2493
2494         if (is_uri_string(uri->uri) == FALSE)
2495                 return TRUE;
2496
2497         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2498
2499         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2500         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2501
2502         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2503
2504         if (visible_str == NULL)
2505                 return TRUE;
2506
2507         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2508                 gchar *uri_path;
2509                 gchar *visible_uri_path;
2510
2511                 uri_path = get_uri_path(uri->uri);
2512                 visible_uri_path = get_uri_path(visible_str);
2513                 if (path_cmp(uri_path, visible_uri_path) != 0)
2514                         retval = FALSE;
2515         }
2516
2517         if (retval == FALSE) {
2518                 gchar *msg;
2519                 AlertValue aval;
2520
2521                 msg = g_markup_printf_escaped(_("The real URL is different from "
2522                                                 "the displayed URL.\n"
2523                                                 "\n"
2524                                                 "<b>Displayed URL:</b> %s\n"
2525                                                 "\n"
2526                                                 "<b>Real URL:</b> %s\n"
2527                                                 "\n"
2528                                                 "Open it anyway?"),
2529                                                visible_str,uri->uri);
2530                 aval = alertpanel_full(_("Phishing attempt warning"), msg,
2531                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2532                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2533                 g_free(msg);
2534                 if (aval == G_ALERTALTERNATE)
2535                         retval = TRUE;
2536         }
2537
2538         g_free(visible_str);
2539
2540         return retval;
2541 }
2542
2543 static void textview_uri_list_remove_all(GSList *uri_list)
2544 {
2545         GSList *cur;
2546
2547         for (cur = uri_list; cur != NULL; cur = cur->next) {
2548                 if (cur->data) {
2549                         g_free(((ClickableText *)cur->data)->uri);
2550                         g_free(((ClickableText *)cur->data)->filename);
2551                         if (((ClickableText *)cur->data)->is_quote) {
2552                                 g_free(((ClickableText *)cur->data)->fg_color);
2553                                 g_free(((ClickableText *)cur->data)->data);
2554                                 /* (only free data in quotes uris) */
2555                         }
2556                         g_free(cur->data);
2557                 }
2558         }
2559
2560         g_slist_free(uri_list);
2561 }
2562
2563 static void open_uri_cb (TextView *textview, guint action, void *data)
2564 {
2565         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2566                                            "menu_button");
2567         if (uri == NULL)
2568                 return;
2569
2570         if (textview_uri_security_check(textview, uri) == TRUE)
2571                 open_uri(uri->uri,
2572                          prefs_common.uri_cmd);
2573         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2574                           NULL);
2575 }
2576
2577 static void open_image_cb (TextView *textview, guint action, void *data)
2578 {
2579         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2580                                            "menu_button");
2581
2582         gchar *cmd = NULL;
2583         gchar buf[1024];
2584         const gchar *p;
2585         gchar *filename = NULL;
2586         gchar *tmp_filename = NULL;
2587
2588         if (uri == NULL)
2589                 return;
2590
2591         if (uri->filename == NULL)
2592                 return;
2593
2594         filename = g_strdup(uri->filename);
2595
2596         if (!g_utf8_validate(filename, -1, NULL)) {
2597                 gchar *tmp = conv_filename_to_utf8(filename);
2598                 g_free(filename);
2599                 filename = tmp;
2600         }
2601
2602         subst_for_filename(filename);
2603
2604         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2605         copy_file(tmp_filename, filename, FALSE);
2606         g_free(tmp_filename);
2607
2608         cmd = mailcap_get_command_for_type("image/jpeg", filename);
2609         if (cmd == NULL) {
2610                 gboolean remember = FALSE;
2611                 cmd = input_dialog_combo_remember
2612                         (_("Open with"),
2613                          _("Enter the command line to open file:\n"
2614                            "('%s' will be replaced with file name)"),
2615                          prefs_common.mime_open_cmd,
2616                          prefs_common.mime_open_cmd_history,
2617                          TRUE, &remember);
2618                 if (cmd && remember) {
2619                         mailcap_update_default("image/jpeg", cmd);
2620                 }
2621         }
2622         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2623             !strchr(p + 2, '%'))
2624                 g_snprintf(buf, sizeof(buf), cmd, filename);
2625         else {
2626                 g_warning("Image viewer command line is invalid: '%s'", cmd);
2627                 return;
2628         }
2629
2630         execute_command_line(buf, TRUE);
2631
2632         g_free(filename);
2633         g_free(cmd);
2634
2635         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2636                           NULL);
2637 }
2638
2639 static void save_file_cb (TextView *textview, guint action, void *data)
2640 {
2641         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2642                                            "menu_button");
2643         gchar *filename = NULL;
2644         gchar *filepath = NULL;
2645         gchar *filedir = NULL;
2646         gchar *tmp_filename = NULL;
2647         if (uri == NULL)
2648                 return;
2649
2650         if (uri->filename == NULL)
2651                 return;
2652
2653         filename = g_strdup(uri->filename);
2654
2655         if (!g_utf8_validate(filename, -1, NULL)) {
2656                 gchar *tmp = conv_filename_to_utf8(filename);
2657                 g_free(filename);
2658                 filename = tmp;
2659         }
2660
2661         subst_for_filename(filename);
2662
2663         if (prefs_common.attach_save_dir)
2664                 filepath = g_strconcat(prefs_common.attach_save_dir,
2665                                        G_DIR_SEPARATOR_S, filename, NULL);
2666         else
2667                 filepath = g_strdup(filename);
2668
2669         g_free(filename);
2670
2671         filename = filesel_select_file_save(_("Save as"), filepath);
2672         if (!filename) {
2673                 g_free(filepath);
2674                 return;
2675         }
2676
2677         if (is_file_exist(filename)) {
2678                 AlertValue aval;
2679                 gchar *res;
2680
2681                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2682                                       filename);
2683                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2684                                   GTK_STOCK_OK, NULL);
2685                 g_free(res);
2686                 if (G_ALERTALTERNATE != aval)
2687                         return;
2688         }
2689
2690         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2691         copy_file(tmp_filename, filename, FALSE);
2692         g_free(tmp_filename);
2693
2694         filedir = g_path_get_dirname(filename);
2695         if (filedir && strcmp(filedir, ".")) {
2696                 g_free(prefs_common.attach_save_dir);
2697                 prefs_common.attach_save_dir = g_strdup(filedir);
2698         }
2699
2700         g_free(filedir);
2701         g_free(filepath);
2702
2703         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2704                           NULL);
2705 }
2706
2707 static void copy_uri_cb (TextView *textview, guint action, void *data)
2708 {
2709         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2710                                            "menu_button");
2711         if (uri == NULL)
2712                 return;
2713
2714         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2715         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2716         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2717                           NULL);
2718 }
2719
2720 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2721 {
2722         gchar *fromname, *fromaddress;
2723         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2724                                            "menu_button");
2725         if (uri == NULL)
2726                 return;
2727
2728         /* extract url */
2729         fromaddress = g_strdup(uri->uri + 7);
2730         /* Hiroyuki: please put this function in utils.c! */
2731         fromname = procheader_get_fromname(fromaddress);
2732         extract_address(fromaddress);
2733         g_message("adding from textview %s <%s>", fromname, fromaddress);
2734         /* Add to address book - Match */
2735         addressbook_add_contact( fromname, fromaddress, NULL );
2736
2737         g_free(fromaddress);
2738         g_free(fromname);
2739 }
2740
2741 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2742 {
2743         PrefsAccount *account = NULL;
2744         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2745                                            "menu_button");
2746         if (uri == NULL)
2747                 return;
2748
2749         if (textview->messageview && textview->messageview->msginfo &&
2750             textview->messageview->msginfo->folder) {
2751                 FolderItem   *folder_item;
2752
2753                 folder_item = textview->messageview->msginfo->folder;
2754                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2755                         account = account_find_from_id(folder_item->prefs->default_account);
2756         }
2757         compose_new(account, uri->uri + 7, NULL);
2758 }
2759
2760 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2761 {
2762         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2763                                            "menu_button");
2764         if (uri == NULL)
2765                 return;
2766
2767         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2768         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2769         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2770                           NULL);
2771 }
2772