src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gdk/gdk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <gtk/gtkvbox.h>
  31 #include <gtk/gtkscrolledwindow.h>
  32 #include <gtk/gtksignal.h>
  33 #include <stdio.h>
  34 #include <ctype.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #include <errno.h>
  38 #if HAVE_SYS_WAIT_H
  39 #include <sys/wait.h>
  40 #endif
  41 #if HAVE_LIBCOMPFACE
  42 #  include <compface.h>
  43 #endif
  44
  45 #if HAVE_LIBCOMPFACE
  46 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  47 #endif
  48
  49 #include "main.h"
  50 #include "summaryview.h"
  51 #include "procheader.h"
  52 #include "prefs_common.h"
  53 #include "codeconv.h"
  54 #include "utils.h"
  55 #include "gtkutils.h"
  56 #include "procmime.h"
  57 #include "html.h"
  58 #include "enriched.h"
  59 #include "compose.h"
  60 #include "addressbook.h"
  61 #include "displayheader.h"
  62 #include "account.h"
  63 #include "mimeview.h"
  64 #include "alertpanel.h"
  65 #include "menu.h"
  66 #include "image_viewer.h"
  67 #include "filesel.h"
  68 #include "base64.h"
  69 #include "inputdialog.h"
  70 #include "timing.h"
  71
  72 static GdkColor quote_colors[3] = {
  73         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  74         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  75         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  76 };
  77
  78 static GdkColor quote_bgcolors[3] = {
  79         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  80         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  81         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  82 };
  83 static GdkColor signature_color = {
  84         (gulong)0,
  85         (gushort)0x7fff,
  86         (gushort)0x7fff,
  87         (gushort)0x7fff
  88 };
  89
  90 static GdkColor uri_color = {
  91         (gulong)0,
  92         (gushort)0,
  93         (gushort)0,
  94         (gushort)0
  95 };
  96
  97 static GdkColor emphasis_color = {
  98         (gulong)0,
  99         (gushort)0,
 100         (gushort)0,
 101         (gushort)0xcfff
 102 };
 103
 104 static GdkCursor *hand_cursor = NULL;
 105 static GdkCursor *text_cursor = NULL;
 106 static GdkCursor *watch_cursor= NULL;
 107
 108 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 109 {       if (textview->messageview->statusbar)                               \
 110         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 111                            textview->messageview->statusbar_cid, str);      \
 112 }
 113
 114 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 115 {       if (textview->messageview->statusbar)                              \
 116         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 117                           textview->messageview->statusbar_cid);           \
 118 }
 119
 120 static void textview_show_ertf          (TextView       *textview,
 121                                          FILE           *fp,
 122                                          CodeConverter  *conv);
 123 static void textview_add_part           (TextView       *textview,
 124                                          MimeInfo       *mimeinfo);
 125 static void textview_add_parts          (TextView       *textview,
 126                                          MimeInfo       *mimeinfo);
 127 static void textview_write_body         (TextView       *textview,
 128                                          MimeInfo       *mimeinfo);
 129 static void textview_show_html          (TextView       *textview,
 130                                          FILE           *fp,
 131                                          CodeConverter  *conv);
 132
 133 static void textview_write_line         (TextView       *textview,
 134                                          const gchar    *str,
 135                                          CodeConverter  *conv,
 136                                          gboolean        do_quote_folding);
 137 static void textview_write_link         (TextView       *textview,
 138                                          const gchar    *str,
 139                                          const gchar    *uri,
 140                                          CodeConverter  *conv);
 141
 142 static GPtrArray *textview_scan_header  (TextView       *textview,
 143                                          FILE           *fp);
 144 static void textview_show_header        (TextView       *textview,
 145                                          GPtrArray      *headers);
 146
 147 static gint textview_key_pressed                (GtkWidget      *widget,
 148                                                  GdkEventKey    *event,
 149                                                  TextView       *textview);
 150 static gboolean textview_motion_notify          (GtkWidget      *widget,
 151                                                  GdkEventMotion *motion,
 152                                                  TextView       *textview);
 153 static gboolean textview_leave_notify           (GtkWidget        *widget,
 154                                                  GdkEventCrossing *event,
 155                                                  TextView         *textview);
 156 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 157                                                  GdkEventVisibility *event,
 158                                                  TextView       *textview);
 159 static void textview_uri_update                 (TextView       *textview,
 160                                                  gint           x,
 161                                                  gint           y);
 162 static gboolean textview_get_uri_range          (TextView       *textview,
 163                                                  GtkTextIter    *iter,
 164                                                  GtkTextTag     *tag,
 165                                                  GtkTextIter    *start_iter,
 166                                                  GtkTextIter    *end_iter);
 167 static ClickableText *textview_get_uri_from_range       (TextView       *textview,
 168                                                  GtkTextIter    *iter,
 169                                                  GtkTextTag     *tag,
 170                                                  GtkTextIter    *start_iter,
 171                                                  GtkTextIter    *end_iter);
 172 static ClickableText *textview_get_uri          (TextView       *textview,
 173                                                  GtkTextIter    *iter,
 174                                                  GtkTextTag     *tag);
 175 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 176                                                  GObject        *obj,
 177                                                  GdkEvent       *event,
 178                                                  GtkTextIter    *iter,
 179                                                  TextView       *textview);
 180
 181 static void textview_uri_list_remove_all        (GSList         *uri_list);
 182
 183 static void textview_toggle_quote               (TextView       *textview,
 184                                                  GSList         *start_list,
 185                                                  ClickableText  *uri,
 186                                                  gboolean        expand_only);
 187
 188 static void open_uri_cb                         (TextView       *textview,
 189                                                  guint           action,
 190                                                  void           *data);
 191 static void copy_uri_cb                         (TextView       *textview,
 192                                                  guint           action,
 193                                                  void           *data);
 194 static void add_uri_to_addrbook_cb              (TextView       *textview,
 195                                                  guint           action,
 196                                                  void           *data);
 197 static void mail_to_uri_cb                      (TextView       *textview,
 198                                                  guint           action,
 199                                                  void           *data);
 200 static void copy_mail_to_uri_cb                 (TextView       *textview,
 201                                                  guint           action,
 202                                                  void           *data);
 203 static void save_file_cb                        (TextView       *textview,
 204                                                  guint           action,
 205                                                  void           *data);
 206 static void open_image_cb                       (TextView       *textview,
 207                                                  guint           action,
 208                                                  void           *data);
 209
 210 static GtkItemFactoryEntry textview_link_popup_entries[] =
 211 {
 212         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 213         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 214 };
 215
 216 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 217 {
 218         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 219         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 220         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 221 };
 222
 223 static GtkItemFactoryEntry textview_file_popup_entries[] =
 224 {
 225         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 226         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 227 };
 228
 229 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 230 {
 231 #ifndef WIDTH
 232 #  define WIDTH 48
 233 #  define HEIGHT 48
 234 #endif
 235         if (textview->image) {
 236                 gint x, y, x1;
 237                 x1 = textview->text->allocation.width - WIDTH - 5;
 238                 gtk_text_view_buffer_to_window_coords(
 239                         GTK_TEXT_VIEW(textview->text),
 240                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 241                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 242                         textview->image, x1, y);
 243         }
 244 }
 245
 246 static void textview_size_allocate_cb   (GtkWidget      *widget,
 247                                          GtkAllocation  *allocation,
 248                                          gpointer        data)
 249 {
 250         scrolled_cb(NULL, (TextView *)data);
 251 }
 252
 253 TextView *textview_create(void)
 254 {
 255         TextView *textview;
 256         GtkWidget *vbox;
 257         GtkWidget *scrolledwin;
 258         GtkWidget *text;
 259         GtkTextBuffer *buffer;
 260         GtkClipboard *clipboard;
 261         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 262         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 263         GtkAdjustment *adj;
 264         gint n_entries;
 265
 266         debug_print("Creating text view...\n");
 267         textview = g_new0(TextView, 1);
 268
 269         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 270         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 271                                        GTK_POLICY_AUTOMATIC,
 272                                        GTK_POLICY_AUTOMATIC);
 273         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 274                                             GTK_SHADOW_IN);
 275         gtk_widget_set_size_request
 276                 (scrolledwin, prefs_common.mainview_width, -1);
 277
 278         /* create GtkSText widgets for single-byte and multi-byte character */
 279         text = gtk_text_view_new();
 280         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 281         gtk_widget_show(text);
 282         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 283         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 284         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 285         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 286         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 287
 288         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 289         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 290         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 291
 292         gtk_widget_ensure_style(text);
 293
 294         gtk_widget_ref(scrolledwin);
 295
 296         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 297
 298         g_signal_connect(G_OBJECT(text), "key-press-event",
 299                          G_CALLBACK(textview_key_pressed), textview);
 300         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 301                          G_CALLBACK(textview_motion_notify), textview);
 302         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 303                          G_CALLBACK(textview_leave_notify), textview);
 304         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 305                          G_CALLBACK(textview_visibility_notify), textview);
 306         adj = gtk_scrolled_window_get_vadjustment(
 307                 GTK_SCROLLED_WINDOW(scrolledwin));
 308         g_signal_connect(G_OBJECT(adj), "value-changed",
 309                          G_CALLBACK(scrolled_cb), textview);
 310         g_signal_connect(G_OBJECT(text), "size_allocate",
 311                          G_CALLBACK(textview_size_allocate_cb),
 312                          textview);
 313
 314
 315         gtk_widget_show(scrolledwin);
 316
 317         vbox = gtk_vbox_new(FALSE, 0);
 318         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 319
 320         gtk_widget_show(vbox);
 321
 322         n_entries = sizeof(textview_link_popup_entries) /
 323                 sizeof(textview_link_popup_entries[0]);
 324         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 325                                       "<UriPopupMenu>", &link_popupfactory,
 326                                       textview);
 327
 328         n_entries = sizeof(textview_mail_popup_entries) /
 329                 sizeof(textview_mail_popup_entries[0]);
 330         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 331                                       "<UriPopupMenu>", &mail_popupfactory,
 332                                       textview);
 333
 334         n_entries = sizeof(textview_file_popup_entries) /
 335                 sizeof(textview_file_popup_entries[0]);
 336         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 337                                       "<FilePopupMenu>", &file_popupfactory,
 338                                       textview);
 339
 340         textview->vbox               = vbox;
 341         textview->scrolledwin        = scrolledwin;
 342         textview->text               = text;
 343         textview->uri_list           = NULL;
 344         textview->body_pos           = 0;
 345         textview->show_all_headers   = FALSE;
 346         textview->last_buttonpress   = GDK_NOTHING;
 347         textview->link_popup_menu    = link_popupmenu;
 348         textview->link_popup_factory = link_popupfactory;
 349         textview->mail_popup_menu    = mail_popupmenu;
 350         textview->mail_popup_factory = mail_popupfactory;
 351         textview->file_popup_menu    = file_popupmenu;
 352         textview->file_popup_factory = file_popupfactory;
 353         textview->image              = NULL;
 354         return textview;
 355 }
 356
 357 static void textview_create_tags(GtkTextView *text, TextView *textview)
 358 {
 359         GtkTextBuffer *buffer;
 360         GtkTextTag *tag, *qtag;
 361         static PangoFontDescription *font_desc, *bold_font_desc;
 362
 363         if (!font_desc)
 364                 font_desc = pango_font_description_from_string
 365                         (NORMAL_FONT);
 366
 367         if (!bold_font_desc) {
 368                 bold_font_desc = pango_font_description_from_string
 369                         (NORMAL_FONT);
 370                 pango_font_description_set_weight
 371                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 372         }
 373
 374         buffer = gtk_text_view_get_buffer(text);
 375
 376         gtk_text_buffer_create_tag(buffer, "header",
 377                                    "pixels-above-lines", 0,
 378                                    "pixels-above-lines-set", TRUE,
 379                                    "pixels-below-lines", 0,
 380                                    "pixels-below-lines-set", TRUE,
 381                                    "font-desc", font_desc,
 382                                    "left-margin", 3,
 383                                    "left-margin-set", TRUE,
 384                                    NULL);
 385         gtk_text_buffer_create_tag(buffer, "header_title",
 386                                    "font-desc", bold_font_desc,
 387                                    NULL);
 388         tag = gtk_text_buffer_create_tag(buffer, "hlink",
 389                                    "pixels-above-lines", 0,
 390                                    "pixels-above-lines-set", TRUE,
 391                                    "pixels-below-lines", 0,
 392                                    "pixels-below-lines-set", TRUE,
 393                                    "font-desc", font_desc,
 394                                    "left-margin", 3,
 395                                    "left-margin-set", TRUE,
 396                                    "foreground-gdk", &uri_color,
 397                                    NULL);
 398         g_signal_connect(G_OBJECT(tag), "event",
 399                          G_CALLBACK(textview_uri_button_pressed), textview);
 400         if (prefs_common.enable_bgcolor) {
 401                 gtk_text_buffer_create_tag(buffer, "quote0",
 402                                 "foreground-gdk", &quote_colors[0],
 403                                 "paragraph-background-gdk", &quote_bgcolors[0],
 404                                 NULL);
 405                 gtk_text_buffer_create_tag(buffer, "quote1",
 406                                 "foreground-gdk", &quote_colors[1],
 407                                 "paragraph-background-gdk", &quote_bgcolors[1],
 408                                 NULL);
 409                 gtk_text_buffer_create_tag(buffer, "quote2",
 410                                 "foreground-gdk", &quote_colors[2],
 411                                 "paragraph-background-gdk", &quote_bgcolors[2],
 412                                 NULL);
 413         } else {
 414                 gtk_text_buffer_create_tag(buffer, "quote0",
 415                                 "foreground-gdk", &quote_colors[0],
 416                                 NULL);
 417                 gtk_text_buffer_create_tag(buffer, "quote1",
 418                                 "foreground-gdk", &quote_colors[1],
 419                                 NULL);
 420                 gtk_text_buffer_create_tag(buffer, "quote2",
 421                                 "foreground-gdk", &quote_colors[2],
 422                                 NULL);
 423         }
 424         gtk_text_buffer_create_tag(buffer, "emphasis",
 425                         "foreground-gdk", &emphasis_color,
 426                         NULL);
 427         gtk_text_buffer_create_tag(buffer, "signature",
 428                         "foreground-gdk", &signature_color,
 429                         NULL);
 430         tag = gtk_text_buffer_create_tag(buffer, "link",
 431                         "foreground-gdk", &uri_color,
 432                         NULL);
 433         qtag = gtk_text_buffer_create_tag(buffer, "qlink",
 434                         NULL);
 435         gtk_text_buffer_create_tag(buffer, "link-hover",
 436                         "underline", PANGO_UNDERLINE_SINGLE,
 437                         NULL);
 438         g_signal_connect(G_OBJECT(qtag), "event",
 439                          G_CALLBACK(textview_uri_button_pressed), textview);
 440         g_signal_connect(G_OBJECT(tag), "event",
 441                          G_CALLBACK(textview_uri_button_pressed), textview);
 442  }
 443
 444 void textview_init(TextView *textview)
 445 {
 446         if (!hand_cursor)
 447                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 448         if (!text_cursor)
 449                 text_cursor = gdk_cursor_new(GDK_XTERM);
 450         if (!watch_cursor)
 451                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 452
 453         textview_reflect_prefs(textview);
 454         textview_set_all_headers(textview, FALSE);
 455         textview_set_font(textview, NULL);
 456         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 457 }
 458
 459 #if GTK_CHECK_VERSION(2, 8, 0)
 460  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 461         tag = gtk_text_tag_table_lookup(tags, tagname); \
 462         if (tag) \
 463                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 464  }
 465 #else
 466  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 467         tag = gtk_text_tag_table_lookup(tags, tagname); \
 468         if (tag) \
 469                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, NULL); \
 470  }
 471 #endif
 472
 473 static void textview_update_message_colors(TextView *textview)
 474 {
 475         GdkColor black = {0, 0, 0, 0};
 476         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 477         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 478
 479         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 480         GtkTextTag *tag = NULL;
 481
 482         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 483         quote_colors[0] = quote_colors[1] = quote_colors[2] =
 484                 uri_color = emphasis_color = signature_color = black;
 485
 486         if (prefs_common.enable_color) {
 487                 /* grab the quote colors, converting from an int to a GdkColor */
 488                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 489                                                &quote_colors[0]);
 490                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 491                                                &quote_colors[1]);
 492                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 493                                                &quote_colors[2]);
 494                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 495                                                &uri_color);
 496                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 497                                                &signature_color);
 498                 emphasis_color = colored_emphasis;
 499         }
 500         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 501                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_bgcol,
 502                                                    &quote_bgcolors[0]);
 503                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_bgcol,
 504                                                    &quote_bgcolors[1]);
 505                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_bgcol,
 506                                                    &quote_bgcolors[2]);
 507                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 508                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 509                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 510         } else {
 511                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 512                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 513                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 514         }
 515
 516         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 517         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 518         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 519         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 520 }
 521 #undef CHANGE_TAG_COLOR
 522
 523 void textview_reflect_prefs(TextView *textview)
 524 {
 525         textview_set_font(textview, NULL);
 526         textview_update_message_colors(textview);
 527         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 528                                          prefs_common.textview_cursor_visible);
 529 }
 530
 531 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 532                            const gchar *file)
 533 {
 534         textview->loading = TRUE;
 535         textview->stop_loading = FALSE;
 536
 537         textview_clear(textview);
 538
 539         textview_add_parts(textview, mimeinfo);
 540
 541         textview_set_position(textview, 0);
 542
 543         textview->loading = FALSE;
 544         textview->stop_loading = FALSE;
 545 }
 546
 547 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 548 {
 549         START_TIMING("");
 550         g_return_if_fail(mimeinfo != NULL);
 551         g_return_if_fail(fp != NULL);
 552
 553         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 554             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 555                 textview->loading = TRUE;
 556                 textview->stop_loading = FALSE;
 557
 558                 textview_clear(textview);
 559                 textview_add_parts(textview, mimeinfo);
 560
 561                 textview->loading = FALSE;
 562                 textview->stop_loading = FALSE;
 563                 END_TIMING();
 564                 return;
 565         }
 566         textview->loading = TRUE;
 567         textview->stop_loading = FALSE;
 568
 569         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 570                 perror("fseek");
 571
 572         textview_clear(textview);
 573
 574         if (mimeinfo->type == MIMETYPE_MULTIPART)
 575                 textview_add_parts(textview, mimeinfo);
 576         else
 577                 textview_write_body(textview, mimeinfo);
 578
 579         textview->loading = FALSE;
 580         textview->stop_loading = FALSE;
 581         END_TIMING();
 582 }
 583
 584 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 585 {
 586         GtkTextView *text;
 587         GtkTextBuffer *buffer;
 588         GtkTextIter iter, start_iter;
 589         gchar buf[BUFFSIZE];
 590         GPtrArray *headers = NULL;
 591         const gchar *name;
 592         gchar *content_type;
 593         gint charcount;
 594         START_TIMING("");
 595
 596         g_return_if_fail(mimeinfo != NULL);
 597         text = GTK_TEXT_VIEW(textview->text);
 598         buffer = gtk_text_view_get_buffer(text);
 599         charcount = gtk_text_buffer_get_char_count(buffer);
 600         gtk_text_buffer_get_end_iter(buffer, &iter);
 601
 602         if (textview->stop_loading) {
 603                 return;
 604         }
 605         if (mimeinfo->type == MIMETYPE_MULTIPART) {
 606                 END_TIMING();
 607                 return;
 608         }
 609
 610         textview->prev_quote_level = -1;
 611
 612         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 613                 FILE *fp;
 614
 615                 fp = g_fopen(mimeinfo->data.filename, "rb");
 616                 fseek(fp, mimeinfo->offset, SEEK_SET);
 617                 headers = textview_scan_header(textview, fp);
 618                 if (headers) {
 619                         if (charcount > 0)
 620                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 621                         textview_show_header(textview, headers);
 622                         procheader_header_array_destroy(headers);
 623                 }
 624                 fclose(fp);
 625                 END_TIMING();
 626                 return;
 627         }
 628
 629         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 630         content_type = procmime_get_content_type_str(mimeinfo->type,
 631                                                      mimeinfo->subtype);
 632         if (name == NULL)
 633                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 634         if (name != NULL)
 635                 g_snprintf(buf, sizeof(buf), _("[%s  %s (%d bytes)]"),
 636                            name, content_type, mimeinfo->length);
 637         else
 638                 g_snprintf(buf, sizeof(buf), _("[%s (%d bytes)]"),
 639                            content_type, mimeinfo->length);
 640
 641         g_free(content_type);
 642
 643         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 644         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 645             mimeinfo->type != MIMETYPE_TEXT)) {
 646                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 647                 TEXTVIEW_INSERT_LINK(buf, "sc://select_attachment", mimeinfo);
 648                 gtk_text_buffer_insert(buffer, &iter, " \n", -1);
 649                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 650                     prefs_common.inline_img ) {
 651                         GdkPixbuf *pixbuf;
 652                         GError *error = NULL;
 653                         gchar *filename;
 654                         ClickableText *uri;
 655                         gchar *uri_str;
 656                         gint err;
 657                         START_TIMING("inserting image");
 658
 659                         filename = procmime_get_tmp_file_name(mimeinfo);
 660
 661                         if ((err = procmime_get_part(filename, mimeinfo)) < 0) {
 662                                 g_warning("Can't get the image file.(%s)", strerror(-err));
 663                                 g_free(filename);
 664                                 END_TIMING();
 665                                 return;
 666                         }
 667
 668                         if (!prefs_common.resize_img) {
 669                                 pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 670                         } else {
 671                                 gint w, h;
 672                                 gdk_pixbuf_get_file_info(filename, &w, &h);
 673                                 if (textview->scrolledwin->allocation.width - 100 > 0 &&
 674                                     w > textview->scrolledwin->allocation.width - 100)
 675                                         pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
 676                                                 textview->scrolledwin->allocation.width - 100,
 677                                                 -1, TRUE, &error);
 678                                 else
 679                                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 680                         }
 681                         if (error != NULL) {
 682                                 g_warning("%s\n", error->message);
 683                                 g_error_free(error);
 684                         }
 685                         if (!pixbuf) {
 686                                 g_warning("Can't load the image.");
 687                                 g_free(filename);
 688                                 END_TIMING();
 689                                 return;
 690                         }
 691
 692                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 693                         if (uri_str) {
 694                                 uri = g_new0(ClickableText, 1);
 695                                 uri->uri = uri_str;
 696                                 uri->start = gtk_text_iter_get_offset(&iter);
 697
 698                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 699
 700                                 uri->end = uri->start + 1;
 701                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 702                                 textview->uri_list =
 703                                         g_slist_prepend(textview->uri_list, uri);
 704
 705                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 706                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 707                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 708                                                 &start_iter, &iter);
 709                         } else {
 710                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 711                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 712                         }
 713
 714                         g_object_unref(pixbuf);
 715                         g_free(filename);
 716                         END_TIMING();
 717                         GTK_EVENTS_FLUSH();
 718                 }
 719         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 720                 if (prefs_common.display_header && (charcount > 0))
 721                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 722
 723                 textview_write_body(textview, mimeinfo);
 724         }
 725         END_TIMING();
 726 }
 727
 728 static void recursive_add_parts(TextView *textview, GNode *node)
 729 {
 730         GNode * iter;
 731         MimeInfo *mimeinfo;
 732         START_TIMING("");
 733
 734         mimeinfo = (MimeInfo *) node->data;
 735
 736         textview_add_part(textview, mimeinfo);
 737
 738         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 739             (mimeinfo->type != MIMETYPE_MESSAGE)) {
 740                 END_TIMING();
 741                 return;
 742         }
 743         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 744                 GNode * prefered_body;
 745                 int prefered_score;
 746
 747                 /*
 748                   text/plain : score 3
 749                   text/ *    : score 2
 750                   other      : score 1
 751                 */
 752                 prefered_body = NULL;
 753                 prefered_score = 0;
 754
 755                 for (iter = g_node_first_child(node) ; iter != NULL ;
 756                      iter = g_node_next_sibling(iter)) {
 757                         int score;
 758                         MimeInfo * submime;
 759
 760                         score = 1;
 761                         submime = (MimeInfo *) iter->data;
 762                         if (submime->type == MIMETYPE_TEXT)
 763                                 score = 2;
 764
 765                         if (submime->subtype != NULL) {
 766                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 767                                         score = 3;
 768                         }
 769
 770                         if (score > prefered_score) {
 771                                 prefered_score = score;
 772                                 prefered_body = iter;
 773                         }
 774                 }
 775
 776                 if (prefered_body != NULL) {
 777                         recursive_add_parts(textview, prefered_body);
 778                 }
 779         }
 780         else {
 781                 for (iter = g_node_first_child(node) ; iter != NULL ;
 782                      iter = g_node_next_sibling(iter)) {
 783                         recursive_add_parts(textview, iter);
 784                 }
 785         }
 786         END_TIMING();
 787 }
 788
 789 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 790 {
 791         g_return_if_fail(mimeinfo != NULL);
 792
 793         recursive_add_parts(textview, mimeinfo->node);
 794 }
 795
 796 void textview_show_error(TextView *textview)
 797 {
 798         GtkTextView *text;
 799         GtkTextBuffer *buffer;
 800         GtkTextIter iter;
 801
 802         textview_set_font(textview, NULL);
 803         textview_clear(textview);
 804
 805         text = GTK_TEXT_VIEW(textview->text);
 806         buffer = gtk_text_view_get_buffer(text);
 807         gtk_text_buffer_get_start_iter(buffer, &iter);
 808
 809         TEXTVIEW_INSERT(_("\n"
 810                       "  This message can't be displayed.\n"
 811                       "  This is probably due to a network error.\n"
 812                       "\n"
 813                       "  Use "));
 814         TEXTVIEW_INSERT_LINK(_("'View Log'"), "sc://view_log", NULL);
 815         TEXTVIEW_INSERT(_(" in the Tools menu for more information."));
 816         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 817
 818 }
 819
 820 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 821 {
 822         GtkTextView *text;
 823         GtkTextBuffer *buffer;
 824         GtkTextIter iter;
 825
 826         if (!partinfo) return;
 827
 828         textview_set_font(textview, NULL);
 829         textview_clear(textview);
 830
 831         text = GTK_TEXT_VIEW(textview->text);
 832         buffer = gtk_text_view_get_buffer(text);
 833         gtk_text_buffer_get_start_iter(buffer, &iter);
 834
 835         TEXTVIEW_INSERT("\n");
 836         TEXTVIEW_INSERT(_("  The following can be performed on this part by\n"));
 837         TEXTVIEW_INSERT(_("  right-clicking the icon or list item:\n"));
 838
 839         TEXTVIEW_INSERT(_("     - To save, select "));
 840         TEXTVIEW_INSERT_LINK(_("'Save as...'"), "sc://save_as", NULL);
 841         TEXTVIEW_INSERT(_(" (Shortcut key: 'y')\n"));
 842         TEXTVIEW_INSERT(_("     - To display as text, select "));
 843         TEXTVIEW_INSERT_LINK(_("'Display as text'"), "sc://display_as_text", NULL);
 844         TEXTVIEW_INSERT(_(" (Shortcut key: 't')\n"));
 845         TEXTVIEW_INSERT(_("     - To open with an external program, select "));
 846         TEXTVIEW_INSERT_LINK(_("'Open'"), "sc://open", NULL);
 847         TEXTVIEW_INSERT(_(" (Shortcut key: 'l')\n"));
 848         TEXTVIEW_INSERT(_("       (alternately double-click, or click the middle "));
 849         TEXTVIEW_INSERT(_("mouse button)\n"));
 850         TEXTVIEW_INSERT(_("     - Or use "));
 851         TEXTVIEW_INSERT_LINK(_("'Open with...'"), "sc://open_with", NULL);
 852         TEXTVIEW_INSERT(_(" (Shortcut key: 'o')\n"));
 853         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 854 }
 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         int lines = 0;
 864
 865         if (textview->messageview->forced_charset)
 866                 charset = textview->messageview->forced_charset;
 867         else
 868                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 869
 870         textview_set_font(textview, charset);
 871
 872         conv = conv_code_converter_new(charset);
 873
 874         procmime_force_encoding(textview->messageview->forced_encoding);
 875
 876         textview->is_in_signature = FALSE;
 877
 878         procmime_decode_content(mimeinfo);
 879
 880         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 881             prefs_common.render_html) {
 882                 gchar *filename;
 883
 884                 filename = procmime_get_tmp_file_name(mimeinfo);
 885                 if (procmime_get_part(filename, mimeinfo) == 0) {
 886                         tmpfp = g_fopen(filename, "rb");
 887                         textview_show_html(textview, tmpfp, conv);
 888                         fclose(tmpfp);
 889                         g_unlink(filename);
 890                 }
 891                 g_free(filename);
 892         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 893                 gchar *filename;
 894
 895                 filename = procmime_get_tmp_file_name(mimeinfo);
 896                 if (procmime_get_part(filename, mimeinfo) == 0) {
 897                         tmpfp = g_fopen(filename, "rb");
 898                         textview_show_ertf(textview, tmpfp, conv);
 899                         fclose(tmpfp);
 900                         g_unlink(filename);
 901                 }
 902                 g_free(filename);
 903 #ifndef G_OS_WIN32
 904         } else if ( g_ascii_strcasecmp(mimeinfo->subtype, "plain") &&
 905                    (cmd = prefs_common.mime_textviewer) && *cmd &&
 906                    (p = strchr(cmd, '%')) && *(p + 1) == 's') {
 907                 int pid, pfd[2];
 908                 const gchar *fname;
 909
 910                 fname  = procmime_get_tmp_file_name(mimeinfo);
 911                 if (procmime_get_part(fname, mimeinfo)) goto textview_default;
 912
 913                 g_snprintf(buf, sizeof(buf), cmd, fname);
 914                 debug_print("Viewing text content of type: %s (length: %d) "
 915                         "using %s\n", mimeinfo->subtype, mimeinfo->length, buf);
 916
 917                 if (pipe(pfd) < 0) {
 918                         g_snprintf(buf, sizeof(buf),
 919                                 "pipe failed for textview\n\n%s\n", strerror(errno));
 920                         textview_write_line(textview, buf, conv, TRUE);
 921                         goto textview_default;
 922                 }
 923                 pid = fork();
 924                 if (pid < 0) {
 925                         g_snprintf(buf, sizeof(buf),
 926                                 "fork failed for textview\n\n%s\n", strerror(errno));
 927                         textview_write_line(textview, buf, conv, TRUE);
 928                         close(pfd[0]);
 929                         close(pfd[1]);
 930                         goto textview_default;
 931                 }
 932                 if (pid == 0) { /* child */
 933                         int rc;
 934                         gchar **argv;
 935                         argv = strsplit_with_quote(buf, " ", 0);
 936                         close(1);
 937                         close(pfd[0]);
 938                         dup(pfd[1]);
 939                         rc = execvp(argv[0], argv);
 940                         close(pfd[1]);
 941                         printf (_("The command to view attachment "
 942                                 "as text failed:\n"
 943                                 "    %s\n"
 944                                 "Exit code %d\n"), buf, rc);
 945                         exit(255);
 946                 }
 947                 close(pfd[1]);
 948                 tmpfp = fdopen(pfd[0], "rb");
 949                 while (fgets(buf, sizeof(buf), tmpfp)) {
 950                         textview_write_line(textview, buf, conv, TRUE);
 951
 952                         lines++;
 953                         if (lines % 500 == 0)
 954                                 GTK_EVENTS_FLUSH();
 955                         if (textview->stop_loading) {
 956                                 fclose(tmpfp);
 957                                 waitpid(pid, pfd, 0);
 958                                 unlink(fname);
 959                                 return;
 960                         }
 961                 }
 962
 963                 fclose(tmpfp);
 964                 waitpid(pid, pfd, 0);
 965                 unlink(fname);
 966 #endif
 967         } else {
 968 textview_default:
 969                 lines = 0;
 970                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 971                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 972                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 973                 while ((ftell(tmpfp) < mimeinfo->offset + mimeinfo->length) &&
 974                        (fgets(buf, sizeof(buf), tmpfp) != NULL)) {
 975                         textview_write_line(textview, buf, conv, TRUE);
 976                         lines++;
 977                         if (lines % 500 == 0)
 978                                 GTK_EVENTS_FLUSH();
 979                         if (textview->stop_loading) {
 980                                 fclose(tmpfp);
 981                                 return;
 982                         }
 983                 }
 984                 fclose(tmpfp);
 985         }
 986
 987         conv_code_converter_destroy(conv);
 988         procmime_force_encoding(0);
 989
 990         lines = 0;
 991         textview->uri_list = g_slist_reverse(textview->uri_list);
 992         for (cur = textview->uri_list; cur; cur = cur->next) {
 993                 ClickableText *uri = (ClickableText *)cur->data;
 994                 if (!uri->is_quote)
 995                         continue;
 996                 if (!prefs_common.hide_quotes ||
 997                     uri->quote_level+1 < prefs_common.hide_quotes) {
 998                         textview_toggle_quote(textview, cur, uri, TRUE);
 999                         lines++;
1000                         if (lines % 500 == 0)
1001                                 GTK_EVENTS_FLUSH();
1002                         if (textview->stop_loading) {
1003                                 return;
1004                         }
1005                 }
1006         }
1007 }
1008
1009 static void textview_show_html(TextView *textview, FILE *fp,
1010                                CodeConverter *conv)
1011 {
1012         SC_HTMLParser *parser;
1013         gchar *str;
1014         gint lines = 0;
1015
1016         parser = sc_html_parser_new(fp, conv);
1017         g_return_if_fail(parser != NULL);
1018
1019         while ((str = sc_html_parse(parser)) != NULL) {
1020                 if (parser->state == SC_HTML_HREF) {
1021                         /* first time : get and copy the URL */
1022                         if (parser->href == NULL) {
1023                                 /* ALF - the claws html parser returns an empty string,
1024                                  * if still inside an <a>, but already parsed past HREF */
1025                                 str = strtok(str, " ");
1026                                 if (str) {
1027                                         while (str && *str && g_ascii_isspace(*str))
1028                                                 str++;
1029                                         parser->href = g_strdup(str);
1030                                         /* the URL may (or not) be followed by the
1031                                          * referenced text */
1032                                         str = strtok(NULL, "");
1033                                 }
1034                         }
1035                         if (str != NULL)
1036                                 textview_write_link(textview, str, parser->href, NULL);
1037                 } else
1038                         textview_write_line(textview, str, NULL, FALSE);
1039                 lines++;
1040                 if (lines % 500 == 0)
1041                         GTK_EVENTS_FLUSH();
1042                 if (textview->stop_loading) {
1043                         return;
1044                 }
1045         }
1046         textview_write_line(textview, "\n", NULL, FALSE);
1047         sc_html_parser_destroy(parser);
1048 }
1049
1050 static void textview_show_ertf(TextView *textview, FILE *fp,
1051                                CodeConverter *conv)
1052 {
1053         ERTFParser *parser;
1054         gchar *str;
1055         gint lines = 0;
1056
1057         parser = ertf_parser_new(fp, conv);
1058         g_return_if_fail(parser != NULL);
1059
1060         while ((str = ertf_parse(parser)) != NULL) {
1061                 textview_write_line(textview, str, NULL, FALSE);
1062                 lines++;
1063                 if (lines % 500 == 0)
1064                         GTK_EVENTS_FLUSH();
1065                 if (textview->stop_loading) {
1066                         return;
1067                 }
1068         }
1069
1070         ertf_parser_destroy(parser);
1071 }
1072
1073 #define ADD_TXT_POS(bp_, ep_, pti_) \
1074         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1075                 last = last->next; \
1076                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1077                 last->next = NULL; \
1078         } else { \
1079                 g_warning("alloc error scanning URIs\n"); \
1080                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
1081                                                          linebuf, -1, \
1082                                                          fg_tag, NULL); \
1083                 return; \
1084         }
1085
1086 #define ADD_TXT_POS_LATER(bp_, ep_, pti_) \
1087         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
1088                 last = last->next; \
1089                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
1090                 last->next = NULL; \
1091         } else { \
1092                 g_warning("alloc error scanning URIs\n"); \
1093         }
1094
1095 /* textview_make_clickable_parts() - colorizes clickable parts */
1096 static void textview_make_clickable_parts(TextView *textview,
1097                                           const gchar *fg_tag,
1098                                           const gchar *uri_tag,
1099                                           const gchar *linebuf,
1100                                           gboolean hdr)
1101 {
1102         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1103         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1104         GtkTextIter iter;
1105         gchar *mybuf = g_strdup(linebuf);
1106
1107         /* parse table - in order of priority */
1108         struct table {
1109                 const gchar *needle; /* token */
1110
1111                 /* token search function */
1112                 gchar    *(*search)     (const gchar *haystack,
1113                                          const gchar *needle);
1114                 /* part parsing function */
1115                 gboolean  (*parse)      (const gchar *start,
1116                                          const gchar *scanpos,
1117                                          const gchar **bp_,
1118                                          const gchar **ep_,
1119                                          gboolean hdr);
1120                 /* part to URI function */
1121                 gchar    *(*build_uri)  (const gchar *bp,
1122                                          const gchar *ep);
1123         };
1124
1125         static struct table parser[] = {
1126                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1127                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1128                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1129                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1130                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1131                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1132                 {"@",        strcasestr, get_email_part, make_email_string}
1133         };
1134         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1135
1136         gint  n;
1137         const gchar *walk, *bp, *ep;
1138
1139         struct txtpos {
1140                 const gchar     *bp, *ep;       /* text position */
1141                 gint             pti;           /* index in parse table */
1142                 struct txtpos   *next;          /* next */
1143         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1144
1145         if (!g_utf8_validate(linebuf, -1, NULL)) {
1146                 g_free(mybuf);
1147                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1148                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1149         }
1150
1151         gtk_text_buffer_get_end_iter(buffer, &iter);
1152
1153         /* parse for clickable parts, and build a list of begin and end positions  */
1154         for (walk = mybuf, n = 0;;) {
1155                 gint last_index = PARSE_ELEMS;
1156                 gchar *scanpos = NULL;
1157
1158                 /* FIXME: this looks phony. scanning for anything in the parse table */
1159                 for (n = 0; n < PARSE_ELEMS; n++) {
1160                         gchar *tmp;
1161
1162                         tmp = parser[n].search(walk, parser[n].needle);
1163                         if (tmp) {
1164                                 if (scanpos == NULL || tmp < scanpos) {
1165                                         scanpos = tmp;
1166                                         last_index = n;
1167                                 }
1168                         }
1169                 }
1170
1171                 if (scanpos) {
1172                         /* check if URI can be parsed */
1173                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1174                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1175                                         ADD_TXT_POS(bp, ep, last_index);
1176                                         walk = ep;
1177                         } else
1178                                 walk = scanpos +
1179                                         strlen(parser[last_index].needle);
1180                 } else
1181                         break;
1182         }
1183
1184         /* colorize this line */
1185         if (head.next) {
1186                 const gchar *normal_text = mybuf;
1187
1188                 /* insert URIs */
1189                 for (last = head.next; last != NULL;
1190                      normal_text = last->ep, last = last->next) {
1191                         ClickableText *uri;
1192                         uri = g_new0(ClickableText, 1);
1193                         if (last->bp - normal_text > 0)
1194                                 gtk_text_buffer_insert_with_tags_by_name
1195                                         (buffer, &iter,
1196                                          normal_text,
1197                                          last->bp - normal_text,
1198                                          fg_tag, NULL);
1199                         uri->uri = parser[last->pti].build_uri(last->bp,
1200                                                                last->ep);
1201                         uri->start = gtk_text_iter_get_offset(&iter);
1202                         gtk_text_buffer_insert_with_tags_by_name
1203                                 (buffer, &iter, last->bp, last->ep - last->bp,
1204                                  uri_tag, fg_tag, NULL);
1205                         uri->end = gtk_text_iter_get_offset(&iter);
1206                         uri->filename = NULL;
1207                         textview->uri_list =
1208                                 g_slist_prepend(textview->uri_list, uri);
1209                 }
1210
1211                 if (*normal_text)
1212                         gtk_text_buffer_insert_with_tags_by_name
1213                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1214         } else {
1215                 gtk_text_buffer_insert_with_tags_by_name
1216                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1217         }
1218         g_free(mybuf);
1219 }
1220
1221 /* textview_make_clickable_parts() - colorizes clickable parts */
1222 static void textview_make_clickable_parts_later(TextView *textview,
1223                                           gint start, gint end)
1224 {
1225         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1226         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1227         GtkTextIter start_iter, end_iter;
1228         gchar *mybuf;
1229         gint offset = 0;
1230         /* parse table - in order of priority */
1231         struct table {
1232                 const gchar *needle; /* token */
1233
1234                 /* token search function */
1235                 gchar    *(*search)     (const gchar *haystack,
1236                                          const gchar *needle);
1237                 /* part parsing function */
1238                 gboolean  (*parse)      (const gchar *start,
1239                                          const gchar *scanpos,
1240                                          const gchar **bp_,
1241                                          const gchar **ep_,
1242                                          gboolean hdr);
1243                 /* part to URI function */
1244                 gchar    *(*build_uri)  (const gchar *bp,
1245                                          const gchar *ep);
1246         };
1247
1248         static struct table parser[] = {
1249                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
1250                 {"https://", strcasestr, get_uri_part,   make_uri_string},
1251                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
1252                 {"sftp://",  strcasestr, get_uri_part,   make_uri_string},
1253                 {"www.",     strcasestr, get_uri_part,   make_http_string},
1254                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
1255                 {"@",        strcasestr, get_email_part, make_email_string}
1256         };
1257         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
1258
1259         gint  n;
1260         const gchar *walk, *bp, *ep;
1261
1262         struct txtpos {
1263                 const gchar     *bp, *ep;       /* text position */
1264                 gint             pti;           /* index in parse table */
1265                 struct txtpos   *next;          /* next */
1266         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1267
1268         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start);
1269         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end);
1270         mybuf = gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
1271         offset = gtk_text_iter_get_offset(&start_iter);
1272
1273         /* parse for clickable parts, and build a list of begin and end positions  */
1274         for (walk = mybuf, n = 0;;) {
1275                 gint last_index = PARSE_ELEMS;
1276                 gchar *scanpos = NULL;
1277
1278                 /* FIXME: this looks phony. scanning for anything in the parse table */
1279                 for (n = 0; n < PARSE_ELEMS; n++) {
1280                         gchar *tmp;
1281
1282                         tmp = parser[n].search(walk, parser[n].needle);
1283                         if (tmp) {
1284                                 if (scanpos == NULL || tmp < scanpos) {
1285                                         scanpos = tmp;
1286                                         last_index = n;
1287                                 }
1288                         }
1289                 }
1290
1291                 if (scanpos) {
1292                         /* check if URI can be parsed */
1293                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, FALSE)
1294                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1295                                         ADD_TXT_POS_LATER(bp, ep, last_index);
1296                                         walk = ep;
1297                         } else
1298                                 walk = scanpos +
1299                                         strlen(parser[last_index].needle);
1300                 } else
1301                         break;
1302         }
1303
1304         /* colorize this line */
1305         if (head.next) {
1306                 /* insert URIs */
1307                 for (last = head.next; last != NULL; last = last->next) {
1308                         ClickableText *uri;
1309                         gint start_offset, end_offset;
1310                         gchar *tmp_str;
1311                         gchar old_char;
1312                         uri = g_new0(ClickableText, 1);
1313                         uri->uri = parser[last->pti].build_uri(last->bp,
1314                                                                last->ep);
1315
1316                         tmp_str = mybuf;
1317                         old_char = tmp_str[last->ep - mybuf];
1318                         tmp_str[last->ep - mybuf] = '\0';
1319                         end_offset = g_utf8_strlen(tmp_str, -1);
1320                         tmp_str[last->ep - mybuf] = old_char;
1321
1322                         old_char = tmp_str[last->bp - mybuf];
1323                         tmp_str[last->bp - mybuf] = '\0';
1324                         start_offset = g_utf8_strlen(tmp_str, -1);
1325                         tmp_str[last->bp - mybuf] = old_char;
1326
1327                         gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, start_offset + offset);
1328                         gtk_text_buffer_get_iter_at_offset(buffer, &end_iter, end_offset + offset);
1329
1330                         uri->start = gtk_text_iter_get_offset(&start_iter);
1331
1332                         gtk_text_buffer_apply_tag_by_name(buffer, "link", &start_iter, &end_iter);
1333
1334                         uri->end = gtk_text_iter_get_offset(&end_iter);
1335                         uri->filename = NULL;
1336                         textview->uri_list =
1337                                 g_slist_prepend(textview->uri_list, uri);
1338                 }
1339         }
1340
1341         g_free(mybuf);
1342 }
1343
1344 #undef ADD_TXT_POS
1345
1346 static void textview_write_line(TextView *textview, const gchar *str,
1347                                 CodeConverter *conv, gboolean do_quote_folding)
1348 {
1349         GtkTextView *text;
1350         GtkTextBuffer *buffer;
1351         GtkTextIter iter;
1352         gchar buf[BUFFSIZE];
1353         gchar *fg_color;
1354         gint quotelevel = -1, real_quotelevel = -1;
1355         gchar quote_tag_str[10];
1356
1357         text = GTK_TEXT_VIEW(textview->text);
1358         buffer = gtk_text_view_get_buffer(text);
1359         gtk_text_buffer_get_end_iter(buffer, &iter);
1360
1361         if (!conv)
1362                 strncpy2(buf, str, sizeof(buf));
1363         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1364                 conv_localetodisp(buf, sizeof(buf), str);
1365
1366         strcrchomp(buf);
1367         fg_color = NULL;
1368
1369         /* change color of quotation
1370            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1371            Up to 3 levels of quotations are detected, and each
1372            level is colored using a different color. */
1373         if (prefs_common.enable_color
1374             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1375                 real_quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1376                 quotelevel = real_quotelevel;
1377                 /* set up the correct foreground color */
1378                 if (quotelevel > 2) {
1379                         /* recycle colors */
1380                         if (prefs_common.recycle_quote_colors)
1381                                 quotelevel %= 3;
1382                         else
1383                                 quotelevel = 2;
1384                 }
1385         }
1386
1387         if (quotelevel == -1)
1388                 fg_color = NULL;
1389         else {
1390                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1391                            "quote%d", quotelevel);
1392                 fg_color = quote_tag_str;
1393         }
1394
1395         if (prefs_common.enable_color &&
1396             (strcmp(buf,"-- \n") == 0 || strcmp(buf, "- -- \n") == 0 || textview->is_in_signature)) {
1397                 fg_color = "signature";
1398                 textview->is_in_signature = TRUE;
1399         }
1400
1401         if (real_quotelevel > -1 && do_quote_folding) {
1402                 if (!g_utf8_validate(buf, -1, NULL)) {
1403                         gchar *utf8buf = NULL;
1404                         utf8buf = g_malloc(BUFFSIZE);
1405                         conv_localetodisp(utf8buf, BUFFSIZE, buf);
1406                         strncpy2(buf, utf8buf, BUFFSIZE-1);
1407                         g_free(utf8buf);
1408                 }
1409 do_quote:
1410                 if ( textview->prev_quote_level != real_quotelevel ) {
1411                         ClickableText *uri;
1412                         uri = g_new0(ClickableText, 1);
1413                         uri->uri = g_strdup("");
1414                         uri->data = g_strdup(buf);
1415                         uri->start = gtk_text_iter_get_offset(&iter);
1416                         uri->is_quote = TRUE;
1417                         uri->quote_level = real_quotelevel;
1418                         uri->fg_color = g_strdup(fg_color);
1419
1420                         gtk_text_buffer_insert_with_tags_by_name
1421                                         (buffer, &iter, " [...]", -1,
1422                                          "qlink", fg_color, NULL);
1423                         uri->end = gtk_text_iter_get_offset(&iter);
1424                         gtk_text_buffer_insert(buffer, &iter, "  \n", -1);
1425
1426                         uri->filename = NULL;
1427                         textview->uri_list =
1428                                 g_slist_prepend(textview->uri_list, uri);
1429
1430                         textview->prev_quote_level = real_quotelevel;
1431                 } else {
1432                         GSList *last = textview->uri_list;
1433                         ClickableText *lasturi = NULL;
1434                         gint e_len = 0, n_len = 0;
1435
1436                         if (textview->uri_list) {
1437                                 lasturi = (ClickableText *)last->data;
1438                         } else {
1439                                 printf("oops (%d %d)\n",
1440                                         real_quotelevel, textview->prev_quote_level);
1441                         }
1442                         if (lasturi->is_quote == FALSE) {
1443                                 textview->prev_quote_level = -1;
1444                                 goto do_quote;
1445                         }
1446                         e_len = lasturi->data ? strlen(lasturi->data):0;
1447                         n_len = strlen(buf);
1448                         lasturi->data = g_realloc((gchar *)lasturi->data, e_len + n_len + 1);
1449                         strcpy((gchar *)lasturi->data + e_len, buf);
1450                         *((gchar *)lasturi->data + e_len + n_len) = '\0';
1451                 }
1452         } else {
1453                 textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1454                 textview->prev_quote_level = -1;
1455         }
1456 }
1457
1458 void textview_write_link(TextView *textview, const gchar *str,
1459                          const gchar *uri, CodeConverter *conv)
1460 {
1461         GdkColor *link_color = NULL;
1462         GtkTextView *text;
1463         GtkTextBuffer *buffer;
1464         GtkTextIter iter;
1465         gchar buf[BUFFSIZE];
1466         gchar *bufp;
1467         ClickableText *r_uri;
1468
1469         if (!str || *str == '\0')
1470                 return;
1471         if (!uri)
1472                 return;
1473
1474         while (uri && *uri && g_ascii_isspace(*uri))
1475                 uri++;
1476
1477         text = GTK_TEXT_VIEW(textview->text);
1478         buffer = gtk_text_view_get_buffer(text);
1479         gtk_text_buffer_get_end_iter(buffer, &iter);
1480
1481         if (!conv)
1482                 strncpy2(buf, str, sizeof(buf));
1483         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1484                 conv_utf8todisp(buf, sizeof(buf), str);
1485
1486         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1487                 return;
1488
1489         strcrchomp(buf);
1490
1491         gtk_text_buffer_get_end_iter(buffer, &iter);
1492         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1493                 gunichar ch;
1494
1495                 ch = g_utf8_get_char(bufp);
1496                 if (!g_unichar_isspace(ch))
1497                         break;
1498         }
1499         if (bufp > buf)
1500                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1501
1502         if (prefs_common.enable_color) {
1503                 link_color = &uri_color;
1504         }
1505         r_uri = g_new0(ClickableText, 1);
1506         r_uri->uri = g_strdup(uri);
1507         r_uri->start = gtk_text_iter_get_offset(&iter);
1508         gtk_text_buffer_insert_with_tags_by_name
1509                 (buffer, &iter, bufp, -1, "link", NULL);
1510         r_uri->end = gtk_text_iter_get_offset(&iter);
1511         r_uri->filename = NULL;
1512         textview->uri_list = g_slist_prepend(textview->uri_list, r_uri);
1513 }
1514
1515 static void textview_set_cursor(GdkWindow *window, GdkCursor *cursor)
1516 {
1517         if (GDK_IS_WINDOW(window))
1518                 gdk_window_set_cursor(window, cursor);
1519 }
1520 void textview_clear(TextView *textview)
1521 {
1522         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1523         GtkTextBuffer *buffer;
1524         GdkWindow *window = gtk_text_view_get_window(text,
1525                                 GTK_TEXT_WINDOW_TEXT);
1526
1527         buffer = gtk_text_view_get_buffer(text);
1528         gtk_text_buffer_set_text(buffer, "", -1);
1529
1530         TEXTVIEW_STATUSBAR_POP(textview);
1531         textview_uri_list_remove_all(textview->uri_list);
1532         textview->uri_list = NULL;
1533         textview->uri_hover = NULL;
1534         textview->prev_quote_level = -1;
1535
1536         textview->body_pos = 0;
1537         if (textview->image)
1538                 gtk_widget_destroy(textview->image);
1539         textview->image = NULL;
1540
1541         if (textview->messageview->mainwin->cursor_count == 0) {
1542                 textview_set_cursor(window, text_cursor);
1543         } else {
1544                 textview_set_cursor(window, watch_cursor);
1545         }
1546 }
1547
1548 void textview_destroy(TextView *textview)
1549 {
1550         GtkTextBuffer *buffer;
1551         GtkClipboard *clipboard;
1552
1553         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1554         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
1555         gtk_text_buffer_remove_selection_clipboard(buffer, clipboard);
1556
1557         textview_uri_list_remove_all(textview->uri_list);
1558         textview->uri_list = NULL;
1559         textview->prev_quote_level = -1;
1560
1561         g_free(textview);
1562 }
1563
1564 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1565 {
1566         textview->show_all_headers = all_headers;
1567 }
1568
1569 #define CHANGE_TAG_FONT(tagname, font) { \
1570         tag = gtk_text_tag_table_lookup(tags, tagname); \
1571         if (tag) \
1572                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1573 }
1574
1575 void textview_set_font(TextView *textview, const gchar *codeset)
1576 {
1577         GtkTextTag *tag;
1578         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1579         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1580
1581         if (NORMAL_FONT) {
1582                 PangoFontDescription *font_desc, *bold_font_desc;
1583                 font_desc = pango_font_description_from_string
1584                                                 (NORMAL_FONT);
1585                 bold_font_desc = pango_font_description_from_string
1586                                                 (NORMAL_FONT);
1587                 if (font_desc) {
1588                         gtk_widget_modify_font(textview->text, font_desc);
1589                         CHANGE_TAG_FONT("header", font_desc);
1590                         CHANGE_TAG_FONT("hlink", font_desc);
1591                         pango_font_description_free(font_desc);
1592                 }
1593                 if (bold_font_desc) {
1594                         pango_font_description_set_weight
1595                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1596                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1597                         pango_font_description_free(bold_font_desc);
1598                 }
1599         }
1600
1601         if (prefs_common.textfont) {
1602                 PangoFontDescription *font_desc;
1603
1604                 font_desc = pango_font_description_from_string
1605                                                 (prefs_common.textfont);
1606                 if (font_desc) {
1607                         gtk_widget_modify_font(textview->text, font_desc);
1608                         pango_font_description_free(font_desc);
1609                 }
1610         }
1611         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1612                                              prefs_common.line_space / 2);
1613         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1614                                              prefs_common.line_space / 2);
1615 }
1616
1617 void textview_set_text(TextView *textview, const gchar *text)
1618 {
1619         GtkTextView *view;
1620         GtkTextBuffer *buffer;
1621
1622         g_return_if_fail(textview != NULL);
1623         g_return_if_fail(text != NULL);
1624
1625         textview_clear(textview);
1626
1627         view = GTK_TEXT_VIEW(textview->text);
1628         buffer = gtk_text_view_get_buffer(view);
1629         gtk_text_buffer_set_text(buffer, text, strlen(text));
1630 }
1631
1632 enum
1633 {
1634         H_DATE          = 0,
1635         H_FROM          = 1,
1636         H_TO            = 2,
1637         H_NEWSGROUPS    = 3,
1638         H_SUBJECT       = 4,
1639         H_CC            = 5,
1640         H_REPLY_TO      = 6,
1641         H_FOLLOWUP_TO   = 7,
1642         H_X_MAILER      = 8,
1643         H_X_NEWSREADER  = 9,
1644         H_USER_AGENT    = 10,
1645         H_ORGANIZATION  = 11,
1646 };
1647
1648 void textview_set_position(TextView *textview, gint pos)
1649 {
1650         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1651
1652         gtkut_text_view_set_position(text, pos);
1653 }
1654
1655 static gboolean header_is_internal(Header *header)
1656 {
1657         const gchar *internal_hdrs[] =
1658                 {"AF:", "NF:", "PS:", "SRH:", "SFN:", "DSR:", "MID:",
1659                  "CFG:", "PT:", "S:", "RQ:", "SSV:", "NSV:", "SSH:",
1660                  "R:", "MAID:", "SCF:", "RMID:", "FMID:", "NAID:",
1661                  "X-Claws-Account-Id:", "X-Claws-Sign:", "X-Claws-Encrypt:",
1662                  "X-Claws-Privacy-System:", "X-Claws-End-Special-Headers:",
1663                  "X-Sylpheed-Account-Id:", "X-Sylpheed-Sign:", "X-Sylpheed-Encrypt:",
1664                  "X-Sylpheed-Privacy-System:", "X-Sylpheed-End-Special-Headers:",
1665                  NULL};
1666         int i;
1667
1668         for (i = 0; internal_hdrs[i]; i++) {
1669                 if (!strcmp(header->name, internal_hdrs[i]))
1670                         return TRUE;
1671         }
1672         return FALSE;
1673 }
1674
1675 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1676 {
1677         gchar buf[BUFFSIZE];
1678         GPtrArray *headers, *sorted_headers;
1679         GSList *disphdr_list;
1680         Header *header;
1681         gint i;
1682
1683         g_return_val_if_fail(fp != NULL, NULL);
1684
1685         if (textview->show_all_headers) {
1686                 headers = procheader_get_header_array_asis(fp);
1687                 sorted_headers = g_ptr_array_new();
1688                 for (i = 0; i < headers->len; i++) {
1689                         header = g_ptr_array_index(headers, i);
1690                         if (!header_is_internal(header))
1691                                 g_ptr_array_add(sorted_headers, header);
1692                         else
1693                                 procheader_header_free(header);
1694                 }
1695                 g_ptr_array_free(headers, TRUE);
1696                 return sorted_headers;
1697         }
1698
1699         if (!prefs_common.display_header) {
1700                 while (fgets(buf, sizeof(buf), fp) != NULL)
1701                         if (buf[0] == '\r' || buf[0] == '\n') break;
1702                 return NULL;
1703         }
1704
1705         headers = procheader_get_header_array_asis(fp);
1706
1707         sorted_headers = g_ptr_array_new();
1708
1709         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1710              disphdr_list = disphdr_list->next) {
1711                 DisplayHeaderProp *dp =
1712                         (DisplayHeaderProp *)disphdr_list->data;
1713
1714                 for (i = 0; i < headers->len; i++) {
1715                         header = g_ptr_array_index(headers, i);
1716
1717                         if (procheader_headername_equal(header->name,
1718                                                         dp->name)) {
1719                                 if (dp->hidden)
1720                                         procheader_header_free(header);
1721                                 else
1722                                         g_ptr_array_add(sorted_headers, header);
1723
1724                                 g_ptr_array_remove_index(headers, i);
1725                                 i--;
1726                         }
1727                 }
1728         }
1729
1730         if (prefs_common.show_other_header) {
1731                 for (i = 0; i < headers->len; i++) {
1732                         header = g_ptr_array_index(headers, i);
1733                         if (!header_is_internal(header)) {
1734                                 g_ptr_array_add(sorted_headers, header);
1735                         } else {
1736                                 procheader_header_free(header);
1737                         }
1738                 }
1739                 g_ptr_array_free(headers, TRUE);
1740         } else
1741                 procheader_header_array_destroy(headers);
1742
1743
1744         return sorted_headers;
1745 }
1746
1747 static void textview_show_face(TextView *textview)
1748 {
1749         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1750         MsgInfo *msginfo = textview->messageview->msginfo;
1751         int x = 0;
1752
1753         if (prefs_common.display_header_pane
1754         ||  !prefs_common.display_xface)
1755                 goto bail;
1756
1757         if (!msginfo->extradata || !msginfo->extradata->face) {
1758                 goto bail;
1759         }
1760
1761         if (textview->image)
1762                 gtk_widget_destroy(textview->image);
1763
1764         textview->image = face_get_from_header(msginfo->extradata->face);
1765         g_return_if_fail(textview->image != NULL);
1766
1767         gtk_widget_show(textview->image);
1768
1769         x = textview->text->allocation.width - WIDTH -5;
1770
1771         gtk_text_view_add_child_in_window(text, textview->image,
1772                 GTK_TEXT_WINDOW_TEXT, x, 5);
1773
1774         gtk_widget_show_all(textview->text);
1775
1776
1777         return;
1778 bail:
1779         if (textview->image)
1780                 gtk_widget_destroy(textview->image);
1781         textview->image = NULL;
1782 }
1783
1784 void textview_show_icon(TextView *textview, const gchar *stock_id)
1785 {
1786         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1787         int x = 0;
1788
1789         if (textview->image)
1790                 gtk_widget_destroy(textview->image);
1791
1792         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
1793         g_return_if_fail(textview->image != NULL);
1794
1795         gtk_widget_show(textview->image);
1796
1797         x = textview->text->allocation.width - WIDTH -5;
1798
1799         gtk_text_view_add_child_in_window(text, textview->image,
1800                 GTK_TEXT_WINDOW_TEXT, x, 5);
1801
1802         gtk_widget_show_all(textview->text);
1803
1804
1805         return;
1806 }
1807
1808 #if HAVE_LIBCOMPFACE
1809 static void textview_show_xface(TextView *textview)
1810 {
1811         MsgInfo *msginfo = textview->messageview->msginfo;
1812         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1813         int x = 0;
1814         GdkWindow *window = NULL;
1815
1816         if (prefs_common.display_header_pane
1817         ||  !prefs_common.display_xface)
1818                 goto bail;
1819
1820         if (!msginfo || !msginfo->extradata)
1821                 goto bail;
1822
1823         if (msginfo->extradata->face)
1824                 return;
1825
1826         if (!msginfo->extradata->xface || strlen(msginfo->extradata->xface) < 5) {
1827                 goto bail;
1828         }
1829
1830         if (textview->image)
1831                 gtk_widget_destroy(textview->image);
1832
1833         window = mainwindow_get_mainwindow() ?
1834                         mainwindow_get_mainwindow()->window->window :
1835                         textview->text->window;
1836         textview->image = xface_get_from_header(msginfo->extradata->xface,
1837                                 &textview->text->style->white,
1838                                 window);
1839         g_return_if_fail(textview->image != NULL);
1840
1841         gtk_widget_show(textview->image);
1842
1843         x = textview->text->allocation.width - WIDTH -5;
1844
1845         gtk_text_view_add_child_in_window(text, textview->image,
1846                 GTK_TEXT_WINDOW_TEXT, x, 5);
1847
1848         gtk_widget_show_all(textview->text);
1849
1850         return;
1851 bail:
1852         if (textview->image)
1853                 gtk_widget_destroy(textview->image);
1854         textview->image = NULL;
1855
1856 }
1857 #endif
1858
1859 static void textview_show_header(TextView *textview, GPtrArray *headers)
1860 {
1861         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1862         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1863         GtkTextIter iter;
1864         Header *header;
1865         gint i;
1866
1867         g_return_if_fail(headers != NULL);
1868
1869         for (i = 0; i < headers->len; i++) {
1870                 header = g_ptr_array_index(headers, i);
1871                 g_return_if_fail(header->name != NULL);
1872
1873                 gtk_text_buffer_get_end_iter (buffer, &iter);
1874                 if(prefs_common.trans_hdr == TRUE) {
1875                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
1876                         gchar *trans_hdr = gettext(hdr);
1877                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1878                                 &iter, trans_hdr, -1,
1879                                 "header_title", "header", NULL);
1880                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1881                                 &iter, ":", 1, "header_title", "header", NULL);
1882                         g_free(hdr);
1883                 } else {
1884                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1885                                 &iter, header->name,
1886                                 -1, "header_title", "header", NULL);
1887                 }
1888                 if (header->name[strlen(header->name) - 1] != ' ')
1889                 gtk_text_buffer_insert_with_tags_by_name
1890                                 (buffer, &iter, " ", 1,
1891                                  "header_title", "header", NULL);
1892
1893                 if (procheader_headername_equal(header->name, "Subject") ||
1894                     procheader_headername_equal(header->name, "From")    ||
1895                     procheader_headername_equal(header->name, "To")      ||
1896                     procheader_headername_equal(header->name, "Cc"))
1897                         unfold_line(header->body);
1898
1899                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1900                      procheader_headername_equal(header->name,
1901                                                  "X-Newsreader")) &&
1902                     (strstr(header->body, "Claws Mail") != NULL ||
1903                      strstr(header->body, "Sylpheed-Claws") != NULL)) {
1904                         gtk_text_buffer_get_end_iter (buffer, &iter);
1905                         gtk_text_buffer_insert_with_tags_by_name
1906                                 (buffer, &iter, header->body, -1,
1907                                  "header", "emphasis", NULL);
1908                 } else {
1909                         gboolean hdr =
1910                           procheader_headername_equal(header->name, "From") ||
1911                           procheader_headername_equal(header->name, "To") ||
1912                           procheader_headername_equal(header->name, "Cc") ||
1913                           procheader_headername_equal(header->name, "Bcc") ||
1914                           procheader_headername_equal(header->name, "Reply-To") ||
1915                           procheader_headername_equal(header->name, "Sender");
1916                         textview_make_clickable_parts(textview, "header",
1917                                                       "hlink", header->body,
1918                                                       hdr);
1919                 }
1920                 gtk_text_buffer_get_end_iter (buffer, &iter);
1921                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1922                                                          "header", NULL);
1923         }
1924
1925         textview_show_face(textview);
1926 #if HAVE_LIBCOMPFACE
1927         textview_show_xface(textview);
1928 #endif
1929 }
1930
1931 gboolean textview_search_string(TextView *textview, const gchar *str,
1932                                 gboolean case_sens)
1933 {
1934         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1935
1936         return gtkut_text_view_search_string(text, str, case_sens);
1937 }
1938
1939 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1940                                          gboolean case_sens)
1941 {
1942         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1943
1944         return gtkut_text_view_search_string_backward(text, str, case_sens);
1945 }
1946
1947 void textview_scroll_one_line(TextView *textview, gboolean up)
1948 {
1949         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1950         GtkAdjustment *vadj = text->vadjustment;
1951
1952         gtkutils_scroll_one_line(GTK_WIDGET(text), vadj, up);
1953 }
1954
1955 gboolean textview_scroll_page(TextView *textview, gboolean up)
1956 {
1957         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1958         GtkAdjustment *vadj = text->vadjustment;
1959
1960         return gtkutils_scroll_page(GTK_WIDGET(text), vadj, up);
1961 }
1962
1963 #define KEY_PRESS_EVENT_STOP() \
1964         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1965                                        "key_press_event");
1966
1967 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1968                                  TextView *textview)
1969 {
1970         SummaryView *summaryview = NULL;
1971         MessageView *messageview = textview->messageview;
1972
1973         if (!event) return FALSE;
1974         if (messageview->mainwin)
1975                 summaryview = messageview->mainwin->summaryview;
1976
1977         switch (event->keyval) {
1978         case GDK_Tab:
1979         case GDK_Home:
1980         case GDK_Left:
1981         case GDK_Up:
1982         case GDK_Right:
1983         case GDK_Down:
1984         case GDK_Page_Up:
1985         case GDK_Page_Down:
1986         case GDK_End:
1987         case GDK_Control_L:
1988         case GDK_Control_R:
1989                 return FALSE;
1990         case GDK_space:
1991                 if (summaryview)
1992                         summary_pass_key_press_event(summaryview, event);
1993                 else
1994                         mimeview_scroll_page
1995                                 (messageview->mimeview,
1996                                  (event->state &
1997                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1998                 break;
1999         case GDK_BackSpace:
2000                 mimeview_scroll_page(messageview->mimeview, TRUE);
2001                 break;
2002         case GDK_Return:
2003                 mimeview_scroll_one_line
2004                         (messageview->mimeview, (event->state &
2005                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
2006                 break;
2007         case GDK_Delete:
2008                 if (summaryview)
2009                         summary_pass_key_press_event(summaryview, event);
2010                 break;
2011         case GDK_y:
2012         case GDK_t:
2013         case GDK_l:
2014         case GDK_c:
2015         case GDK_a:
2016                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
2017                         KEY_PRESS_EVENT_STOP();
2018                         mimeview_pass_key_press_event(messageview->mimeview,
2019                                                       event);
2020                         break;
2021                 }
2022                 /* possible fall through */
2023         default:
2024                 if (summaryview &&
2025                     event->window != messageview->mainwin->window->window) {
2026                         GdkEventKey tmpev = *event;
2027
2028                         tmpev.window = messageview->mainwin->window->window;
2029                         KEY_PRESS_EVENT_STOP();
2030                         gtk_widget_event(messageview->mainwin->window,
2031                                          (GdkEvent *)&tmpev);
2032                 }
2033                 break;
2034         }
2035
2036         return TRUE;
2037 }
2038
2039 static gboolean textview_motion_notify(GtkWidget *widget,
2040                                        GdkEventMotion *event,
2041                                        TextView *textview)
2042 {
2043         if (textview->loading)
2044                 return FALSE;
2045         textview_uri_update(textview, event->x, event->y);
2046         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
2047
2048         return FALSE;
2049 }
2050
2051 static gboolean textview_leave_notify(GtkWidget *widget,
2052                                       GdkEventCrossing *event,
2053                                       TextView *textview)
2054 {
2055         if (textview->loading)
2056                 return FALSE;
2057         textview_uri_update(textview, -1, -1);
2058
2059         return FALSE;
2060 }
2061
2062 static gboolean textview_visibility_notify(GtkWidget *widget,
2063                                            GdkEventVisibility *event,
2064                                            TextView *textview)
2065 {
2066         gint wx, wy;
2067         GdkWindow *window;
2068
2069         if (textview->loading)
2070                 return FALSE;
2071
2072         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
2073                                           GTK_TEXT_WINDOW_TEXT);
2074
2075         /* check if occurred for the text window part */
2076         if (window != event->window)
2077                 return FALSE;
2078
2079         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
2080         textview_uri_update(textview, wx, wy);
2081
2082         return FALSE;
2083 }
2084
2085 void textview_cursor_wait(TextView *textview)
2086 {
2087         GdkWindow *window = gtk_text_view_get_window(
2088                         GTK_TEXT_VIEW(textview->text),
2089                         GTK_TEXT_WINDOW_TEXT);
2090         textview_set_cursor(window, watch_cursor);
2091 }
2092
2093 void textview_cursor_normal(TextView *textview)
2094 {
2095         GdkWindow *window = gtk_text_view_get_window(
2096                         GTK_TEXT_VIEW(textview->text),
2097                         GTK_TEXT_WINDOW_TEXT);
2098         textview_set_cursor(window, text_cursor);
2099 }
2100
2101 static void textview_uri_update(TextView *textview, gint x, gint y)
2102 {
2103         GtkTextBuffer *buffer;
2104         GtkTextIter start_iter, end_iter;
2105         ClickableText *uri = NULL;
2106
2107         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2108
2109         if (x != -1 && y != -1) {
2110                 gint bx, by;
2111                 GtkTextIter iter;
2112                 GSList *tags;
2113                 GSList *cur;
2114
2115                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
2116                                                       GTK_TEXT_WINDOW_WIDGET,
2117                                                       x, y, &bx, &by);
2118                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
2119                                                    &iter, bx, by);
2120
2121                 tags = gtk_text_iter_get_tags(&iter);
2122                 for (cur = tags; cur != NULL; cur = cur->next) {
2123                         GtkTextTag *tag = cur->data;
2124                         char *name;
2125
2126                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
2127
2128                         if ((!strcmp(name, "link") || !strcmp(name, "hlink"))
2129                             && textview_get_uri_range(textview, &iter, tag,
2130                                                       &start_iter, &end_iter)) {
2131
2132                                 uri = textview_get_uri_from_range(textview,
2133                                                                   &iter, tag,
2134                                                                   &start_iter,
2135                                                                   &end_iter);
2136                         }
2137                         g_free(name);
2138                         if (uri)
2139                                 break;
2140                 }
2141                 g_slist_free(tags);
2142         }
2143
2144         if (uri != textview->uri_hover) {
2145                 GdkWindow *window;
2146
2147                 if (textview->uri_hover)
2148                         gtk_text_buffer_remove_tag_by_name(buffer,
2149                                                            "link-hover",
2150                                                            &textview->uri_hover_start_iter,
2151                                                            &textview->uri_hover_end_iter);
2152
2153                 textview->uri_hover = uri;
2154                 if (uri) {
2155                         textview->uri_hover_start_iter = start_iter;
2156                         textview->uri_hover_end_iter = end_iter;
2157                 }
2158
2159                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
2160                                                   GTK_TEXT_WINDOW_TEXT);
2161                 if (textview->messageview->mainwin->cursor_count == 0) {
2162                         textview_set_cursor(window, uri ? hand_cursor : text_cursor);
2163                 } else {
2164                         textview_set_cursor(window, watch_cursor);
2165                 }
2166
2167                 TEXTVIEW_STATUSBAR_POP(textview);
2168
2169                 if (uri) {
2170                         char *trimmed_uri;
2171
2172                         if (!uri->is_quote)
2173                                 gtk_text_buffer_apply_tag_by_name(buffer,
2174                                                           "link-hover",
2175                                                           &start_iter,
2176                                                           &end_iter);
2177
2178                         trimmed_uri = trim_string(uri->uri, 60);
2179                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
2180                         g_free(trimmed_uri);
2181                 }
2182         }
2183 }
2184
2185 static gboolean textview_get_uri_range(TextView *textview,
2186                                        GtkTextIter *iter,
2187                                        GtkTextTag *tag,
2188                                        GtkTextIter *start_iter,
2189                                        GtkTextIter *end_iter)
2190 {
2191         return get_tag_range(iter, tag, start_iter, end_iter);
2192 }
2193
2194 static ClickableText *textview_get_uri_from_range(TextView *textview,
2195                                               GtkTextIter *iter,
2196                                               GtkTextTag *tag,
2197                                               GtkTextIter *start_iter,
2198                                               GtkTextIter *end_iter)
2199 {
2200         gint start_pos, end_pos, cur_pos;
2201         ClickableText *uri = NULL;
2202         GSList *cur;
2203
2204         start_pos = gtk_text_iter_get_offset(start_iter);
2205         end_pos = gtk_text_iter_get_offset(end_iter);
2206         cur_pos = gtk_text_iter_get_offset(iter);
2207
2208         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
2209                 ClickableText *uri_ = (ClickableText *)cur->data;
2210                 if (start_pos == uri_->start &&
2211                     end_pos ==  uri_->end) {
2212                         uri = uri_;
2213                         break;
2214                 }
2215         }
2216         for (cur = textview->uri_list; uri == NULL && cur != NULL; cur = cur->next) {
2217                 ClickableText *uri_ = (ClickableText *)cur->data;
2218                 if (start_pos == uri_->start ||
2219                            end_pos == uri_->end) {
2220                         /* in case of contiguous links, textview_get_uri_range
2221                          * returns a broader range (start of 1st link to end
2222                          * of last link).
2223                          * In that case, correct link is the one covering
2224                          * current iter.
2225                          */
2226                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
2227                                 uri = uri_;
2228                                 break;
2229                         }
2230                 }
2231         }
2232
2233         return uri;
2234 }
2235
2236 static ClickableText *textview_get_uri(TextView *textview,
2237                                    GtkTextIter *iter,
2238                                    GtkTextTag *tag)
2239 {
2240         GtkTextIter start_iter, end_iter;
2241         ClickableText *uri = NULL;
2242
2243         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2244                                    &end_iter))
2245                 uri = textview_get_uri_from_range(textview, iter, tag,
2246                                                   &start_iter, &end_iter);
2247
2248         return uri;
2249 }
2250
2251 static void textview_shift_uris_after(TextView *textview, GSList *start_list, gint start, gint shift)
2252 {
2253         GSList *cur;
2254         if (!start_list)
2255                 start_list = textview->uri_list;
2256
2257         for (cur = start_list; cur; cur = cur->next) {
2258                 ClickableText *uri = (ClickableText *)cur->data;
2259                 if (uri->start <= start)
2260                         continue;
2261                 uri->start += shift;
2262                 uri->end += shift;
2263         }
2264 }
2265
2266 static void textview_remove_uris_in(TextView *textview, gint start, gint end)
2267 {
2268         GSList *cur;
2269         for (cur = textview->uri_list; cur; ) {
2270                 ClickableText *uri = (ClickableText *)cur->data;
2271                 if (uri->start > start && uri->end < end) {
2272                         cur = cur->next;
2273                         textview->uri_list = g_slist_remove(textview->uri_list, uri);
2274                         g_free(uri->uri);
2275                         g_free(uri->filename);
2276                         if (uri->is_quote) {
2277                                 g_free(uri->fg_color);
2278                                 g_free(uri->data);
2279                                 /* (only free data in quotes uris) */
2280                         }
2281                         g_free(uri);
2282                 } else {
2283                         cur = cur->next;
2284                 }
2285
2286         }
2287 }
2288
2289 static void textview_toggle_quote(TextView *textview, GSList *start_list, ClickableText *uri, gboolean expand_only)
2290 {
2291         GtkTextIter start, end;
2292         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2293
2294         if (!uri->is_quote)
2295                 return;
2296
2297         if (uri->q_expanded && expand_only)
2298                 return;
2299
2300         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2301         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2302         if (textview->uri_hover)
2303                 gtk_text_buffer_remove_tag_by_name(buffer,
2304                                                    "link-hover",
2305                                                    &textview->uri_hover_start_iter,
2306                                                    &textview->uri_hover_end_iter);
2307         textview->uri_hover = NULL;
2308         gtk_text_buffer_remove_tag_by_name(buffer,
2309                                            "qlink",
2310                                            &start,
2311                                            &end);
2312         /* when shifting URIs start and end, we have to do it per-UTF8-char
2313          * so use g_utf8_strlen(). OTOH, when inserting in the text buffer,
2314          * we have to pass a number of bytes, so use strlen(). disturbing. */
2315
2316         if (!uri->q_expanded) {
2317                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2318                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2319                 textview_shift_uris_after(textview, start_list, uri->start,
2320                         g_utf8_strlen((gchar *)uri->data, -1)-strlen(" [...]\n"));
2321                 gtk_text_buffer_delete(buffer, &start, &end);
2322                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2323                 gtk_text_buffer_insert_with_tags_by_name
2324                                 (buffer, &start, (gchar *)uri->data,
2325                                  strlen((gchar *)uri->data)-1,
2326                                  "qlink", (gchar *)uri->fg_color, NULL);
2327                 uri->end = gtk_text_iter_get_offset(&start);
2328                 textview_make_clickable_parts_later(textview,
2329                                           uri->start, uri->end);
2330                 uri->q_expanded = TRUE;
2331         } else {
2332                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2333                 gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2334                 textview_remove_uris_in(textview, uri->start, uri->end);
2335                 textview_shift_uris_after(textview, start_list, uri->start,
2336                         strlen(" [...]\n")-g_utf8_strlen((gchar *)uri->data, -1));
2337                 gtk_text_buffer_delete(buffer, &start, &end);
2338                 gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2339                 gtk_text_buffer_insert_with_tags_by_name
2340                                 (buffer, &start, " [...]", -1,
2341                                  "qlink", (gchar *)uri->fg_color, NULL);
2342                 uri->end = gtk_text_iter_get_offset(&start);
2343                 uri->q_expanded = FALSE;
2344         }
2345         if (textview->messageview->mainwin->cursor_count == 0) {
2346                 textview_cursor_normal(textview);
2347         } else {
2348                 textview_cursor_wait(textview);
2349         }
2350 }
2351 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2352                                             GdkEvent *event, GtkTextIter *iter,
2353                                             TextView *textview)
2354 {
2355         GdkEventButton *bevent;
2356         ClickableText *uri = NULL;
2357         char *tagname;
2358         gboolean qlink = FALSE;
2359
2360         if (!event)
2361                 return FALSE;
2362
2363         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2364                 && event->type != GDK_MOTION_NOTIFY)
2365                 return FALSE;
2366
2367         uri = textview_get_uri(textview, iter, tag);
2368         if (!uri)
2369                 return FALSE;
2370
2371         g_object_get(G_OBJECT(tag), "name", &tagname, NULL);
2372
2373         if (!strcmp(tagname, "qlink"))
2374                 qlink = TRUE;
2375
2376         g_free(tagname);
2377
2378         bevent = (GdkEventButton *) event;
2379
2380         /* doubleclick: open compose / add address / browser */
2381         if (qlink && event->type == GDK_BUTTON_PRESS && bevent->button != 1) {
2382                 /* pass rightclick through */
2383                 return FALSE;
2384         } else if ((event->type == (qlink ? GDK_2BUTTON_PRESS:GDK_BUTTON_PRESS) && bevent->button == 1) ||
2385                 bevent->button == 2 || bevent->button == 3) {
2386                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2387                         MimeView *mimeview =
2388                                 (textview->messageview)?
2389                                         textview->messageview->mimeview:NULL;
2390                         if (mimeview && bevent->button == 1) {
2391                                 mimeview_handle_cmd(mimeview, uri->filename, NULL, uri->data);
2392                         } else if (mimeview && bevent->button == 2 &&
2393                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2394                                 mimeview_handle_cmd(mimeview, "sc://open_attachment", NULL, uri->data);
2395                         } else if (mimeview && bevent->button == 3 &&
2396                                 !g_ascii_strcasecmp(uri->filename, "sc://select_attachment")) {
2397                                 mimeview_handle_cmd(mimeview, "sc://menu_attachment", bevent, uri->data);
2398                         }
2399                         return TRUE;
2400                 } else if (qlink && bevent->button == 1) {
2401                         textview_toggle_quote(textview, NULL, uri, FALSE);
2402                         return TRUE;
2403                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2404                         if (bevent->button == 3) {
2405                                 g_object_set_data(
2406                                         G_OBJECT(textview->mail_popup_menu),
2407                                         "menu_button", uri);
2408                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2409                                                NULL, NULL, NULL, NULL,
2410                                                bevent->button, bevent->time);
2411                         } else {
2412                                 PrefsAccount *account = NULL;
2413                                 FolderItem   *folder_item = NULL;
2414                                 if (textview->messageview && textview->messageview->msginfo &&
2415                                     textview->messageview->msginfo->folder) {
2416
2417
2418                                         folder_item = textview->messageview->msginfo->folder;
2419                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2420                                                 account = account_find_from_id(folder_item->prefs->default_account);
2421                                         if (!account)
2422                                                 account = account_find_from_item(folder_item);
2423                                 }
2424                                 compose_new_with_folderitem(account, folder_item, uri->uri + 7);
2425                         }
2426                         return TRUE;
2427                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2428                         if (bevent->button == 1 &&
2429                             textview_uri_security_check(textview, uri) == TRUE)
2430                                         open_uri(uri->uri,
2431                                                  prefs_common.uri_cmd);
2432                         else if (bevent->button == 3 && !qlink) {
2433                                 g_object_set_data(
2434                                         G_OBJECT(textview->link_popup_menu),
2435                                         "menu_button", uri);
2436                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2437                                                NULL, NULL, NULL, NULL,
2438                                                bevent->button, bevent->time);
2439                         }
2440                         return TRUE;
2441                 } else {
2442                         if (bevent->button == 3 && !qlink) {
2443                                 g_object_set_data(
2444                                         G_OBJECT(textview->file_popup_menu),
2445                                         "menu_button", uri);
2446                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2447                                                NULL, NULL, NULL, NULL,
2448                                                bevent->button, bevent->time);
2449                                 return TRUE;
2450                         }
2451                 }
2452         }
2453
2454         return FALSE;
2455 }
2456
2457 gchar *textview_get_visible_uri         (TextView       *textview,
2458                                          ClickableText  *uri)
2459 {
2460         GtkTextBuffer *buffer;
2461         GtkTextIter start, end;
2462
2463         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2464
2465         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2466         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2467
2468         return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2469 }
2470
2471 /*!
2472  *\brief    Check to see if a web URL has been disguised as a different
2473  *          URL (possible with HTML email).
2474  *
2475  *\param    uri The uri to check
2476  *
2477  *\param    textview The TextView the URL is contained in
2478  *
2479  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2480  *          it anyway, otherwise FALSE
2481  */
2482 gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
2483 {
2484         gchar *visible_str;
2485         gboolean retval = TRUE;
2486
2487         if (is_uri_string(uri->uri) == FALSE)
2488                 return TRUE;
2489
2490         visible_str = textview_get_visible_uri(textview, uri);
2491         if (visible_str == NULL)
2492                 return TRUE;
2493
2494         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2495                 gchar *uri_path;
2496                 gchar *visible_uri_path;
2497
2498                 uri_path = get_uri_path(uri->uri);
2499                 visible_uri_path = get_uri_path(visible_str);
2500                 if (path_cmp(uri_path, visible_uri_path) != 0)
2501                         retval = FALSE;
2502         }
2503
2504         if (retval == FALSE) {
2505                 gchar *msg;
2506                 AlertValue aval;
2507
2508                 msg = g_markup_printf_escaped(_("The real URL is different from "
2509                                                 "the displayed URL.\n"
2510                                                 "\n"
2511                                                 "<b>Displayed URL:</b> %s\n"
2512                                                 "\n"
2513                                                 "<b>Real URL:</b> %s\n"
2514                                                 "\n"
2515                                                 "Open it anyway?"),
2516                                                visible_str,uri->uri);
2517                 aval = alertpanel_full(_("Phishing attempt warning"), msg,
2518                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2519                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2520                 g_free(msg);
2521                 if (aval == G_ALERTALTERNATE)
2522                         retval = TRUE;
2523         }
2524
2525         g_free(visible_str);
2526
2527         return retval;
2528 }
2529
2530 static void textview_uri_list_remove_all(GSList *uri_list)
2531 {
2532         GSList *cur;
2533
2534         for (cur = uri_list; cur != NULL; cur = cur->next) {
2535                 if (cur->data) {
2536                         g_free(((ClickableText *)cur->data)->uri);
2537                         g_free(((ClickableText *)cur->data)->filename);
2538                         if (((ClickableText *)cur->data)->is_quote) {
2539                                 g_free(((ClickableText *)cur->data)->fg_color);
2540                                 g_free(((ClickableText *)cur->data)->data);
2541                                 /* (only free data in quotes uris) */
2542                         }
2543                         g_free(cur->data);
2544                 }
2545         }
2546
2547         g_slist_free(uri_list);
2548 }
2549
2550 static void open_uri_cb (TextView *textview, guint action, void *data)
2551 {
2552         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2553                                            "menu_button");
2554         if (uri == NULL)
2555                 return;
2556
2557         if (textview_uri_security_check(textview, uri) == TRUE)
2558                 open_uri(uri->uri,
2559                          prefs_common.uri_cmd);
2560         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2561                           NULL);
2562 }
2563
2564 static void open_image_cb (TextView *textview, guint action, void *data)
2565 {
2566         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2567                                            "menu_button");
2568
2569         gchar *cmd = NULL;
2570         gchar buf[1024];
2571         const gchar *p;
2572         gchar *filename = NULL;
2573         gchar *tmp_filename = NULL;
2574
2575         if (uri == NULL)
2576                 return;
2577
2578         if (uri->filename == NULL)
2579                 return;
2580
2581         filename = g_strdup(uri->filename);
2582
2583         if (!g_utf8_validate(filename, -1, NULL)) {
2584                 gchar *tmp = conv_filename_to_utf8(filename);
2585                 g_free(filename);
2586                 filename = tmp;
2587         }
2588
2589         subst_for_filename(filename);
2590
2591         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2592         copy_file(tmp_filename, filename, FALSE);
2593         g_free(tmp_filename);
2594
2595         cmd = mailcap_get_command_for_type("image/jpeg", filename);
2596         if (cmd == NULL) {
2597                 gboolean remember = FALSE;
2598                 cmd = input_dialog_combo_remember
2599                         (_("Open with"),
2600                          _("Enter the command line to open file:\n"
2601                            "('%s' will be replaced with file name)"),
2602                          prefs_common.mime_open_cmd,
2603                          prefs_common.mime_open_cmd_history,
2604                          TRUE, &remember);
2605                 if (cmd && remember) {
2606                         mailcap_update_default("image/jpeg", cmd);
2607                 }
2608         }
2609         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2610             !strchr(p + 2, '%'))
2611                 g_snprintf(buf, sizeof(buf), cmd, filename);
2612         else {
2613                 g_warning("Image viewer command line is invalid: '%s'", cmd);
2614                 return;
2615         }
2616
2617         execute_command_line(buf, TRUE);
2618
2619         g_free(filename);
2620         g_free(cmd);
2621
2622         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2623                           NULL);
2624 }
2625
2626 static void save_file_cb (TextView *textview, guint action, void *data)
2627 {
2628         ClickableText *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2629                                            "menu_button");
2630         gchar *filename = NULL;
2631         gchar *filepath = NULL;
2632         gchar *filedir = NULL;
2633         gchar *tmp_filename = NULL;
2634         if (uri == NULL)
2635                 return;
2636
2637         if (uri->filename == NULL)
2638                 return;
2639
2640         filename = g_strdup(uri->filename);
2641
2642         if (!g_utf8_validate(filename, -1, NULL)) {
2643                 gchar *tmp = conv_filename_to_utf8(filename);
2644                 g_free(filename);
2645                 filename = tmp;
2646         }
2647
2648         subst_for_filename(filename);
2649
2650         if (prefs_common.attach_save_dir)
2651                 filepath = g_strconcat(prefs_common.attach_save_dir,
2652                                        G_DIR_SEPARATOR_S, filename, NULL);
2653         else
2654                 filepath = g_strdup(filename);
2655
2656         g_free(filename);
2657
2658         filename = filesel_select_file_save(_("Save as"), filepath);
2659         if (!filename) {
2660                 g_free(filepath);
2661                 return;
2662         }
2663
2664         if (is_file_exist(filename)) {
2665                 AlertValue aval;
2666                 gchar *res;
2667
2668                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2669                                       filename);
2670                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2671                                   GTK_STOCK_OK, NULL);
2672                 g_free(res);
2673                 if (G_ALERTALTERNATE != aval)
2674                         return;
2675         }
2676
2677         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2678         copy_file(tmp_filename, filename, FALSE);
2679         g_free(tmp_filename);
2680
2681         filedir = g_path_get_dirname(filename);
2682         if (filedir && strcmp(filedir, ".")) {
2683                 g_free(prefs_common.attach_save_dir);
2684                 prefs_common.attach_save_dir = g_filename_to_utf8(filedir, -1, NULL, NULL, NULL);
2685         }
2686
2687         g_free(filedir);
2688         g_free(filepath);
2689
2690         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2691                           NULL);
2692 }
2693
2694 static void copy_uri_cb (TextView *textview, guint action, void *data)
2695 {
2696         ClickableText *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2697                                            "menu_button");
2698         if (uri == NULL)
2699                 return;
2700
2701         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2702         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2703         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2704                           NULL);
2705 }
2706
2707 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2708 {
2709         gchar *fromname, *fromaddress;
2710         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2711                                            "menu_button");
2712         if (uri == NULL)
2713                 return;
2714
2715         /* extract url */
2716         fromaddress = g_strdup(uri->uri + 7);
2717         /* Hiroyuki: please put this function in utils.c! */
2718         fromname = procheader_get_fromname(fromaddress);
2719         extract_address(fromaddress);
2720
2721         /* Add to address book - Match */
2722         addressbook_add_contact( fromname, fromaddress, NULL );
2723
2724         g_free(fromaddress);
2725         g_free(fromname);
2726 }
2727
2728 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2729 {
2730         PrefsAccount *account = NULL;
2731         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2732                                            "menu_button");
2733         if (uri == NULL)
2734                 return;
2735
2736         if (textview->messageview && textview->messageview->msginfo &&
2737             textview->messageview->msginfo->folder) {
2738                 FolderItem   *folder_item;
2739
2740                 folder_item = textview->messageview->msginfo->folder;
2741                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2742                         account = account_find_from_id(folder_item->prefs->default_account);
2743         }
2744         compose_new(account, uri->uri + 7, NULL);
2745 }
2746
2747 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2748 {
2749         ClickableText *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2750                                            "menu_button");
2751         if (uri == NULL)
2752                 return;
2753
2754         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2755         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2756         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2757                           NULL);
2758 }
2759
2760 void textview_get_selection_offsets(TextView *textview, gint *sel_start, gint *sel_end)
2761 {
2762                 GtkTextView *text = GTK_TEXT_VIEW(textview->text);
2763                 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
2764                 GtkTextIter start, end;
2765                 if (gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) {
2766                         if (sel_start)
2767                                 *sel_start = gtk_text_iter_get_offset(&start);
2768                         if (sel_end)
2769                                 *sel_end = gtk_text_iter_get_offset(&end);
2770                 } else {
2771                         if (sel_start)
2772                                 *sel_start = -1;
2773                         if (sel_end)
2774                                 *sel_end = -1;
2775                 }
2776 }