src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2005 Hiroyuki Yamamoto
   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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
  38 #include "main.h"
  39 #include "summaryview.h"
  40 #include "procheader.h"
  41 #include "prefs_common.h"
  42 #include "codeconv.h"
  43 #include "utils.h"
  44 #include "gtkutils.h"
  45 #include "procmime.h"
  46 #include "html.h"
  47 #include "enriched.h"
  48 #include "compose.h"
  49 #include "addressbook.h"
  50 #include "displayheader.h"
  51 #include "account.h"
  52 #include "mimeview.h"
  53 #include "alertpanel.h"
  54 #include "menu.h"
  55 #include "image_viewer.h"
  56 #include "filesel.h"
  57
  58 struct _RemoteURI
  59 {
  60         gchar *uri;
  61
  62         gchar *filename;
  63
  64         guint start;
  65         guint end;
  66 };
  67
  68 static GdkColor quote_colors[3] = {
  69         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  70         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  71         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  72 };
  73
  74 static GdkColor signature_color = {
  75         (gulong)0,
  76         (gushort)0x7fff,
  77         (gushort)0x7fff,
  78         (gushort)0x7fff
  79 };
  80
  81 static GdkColor uri_color = {
  82         (gulong)0,
  83         (gushort)0,
  84         (gushort)0,
  85         (gushort)0
  86 };
  87
  88 static GdkColor emphasis_color = {
  89         (gulong)0,
  90         (gushort)0,
  91         (gushort)0,
  92         (gushort)0xcfff
  93 };
  94
  95 #if 0
  96 static GdkColor error_color = {
  97         (gulong)0,
  98         (gushort)0xefff,
  99         (gushort)0,
 100         (gushort)0
 101 };
 102 #endif
 103
 104
 105 static GdkCursor *hand_cursor = NULL;
 106 static GdkCursor *text_cursor = NULL;
 107
 108 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                                      \
 109 {                                                                           \
 110         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 111                            textview->messageview->statusbar_cid, str);      \
 112 }
 113
 114 #define TEXTVIEW_STATUSBAR_POP(textview)                                                   \
 115 {                                                                          \
 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 static void textview_write_link         (TextView       *textview,
 137                                          const gchar    *str,
 138                                          const gchar    *uri,
 139                                          CodeConverter  *conv);
 140
 141 static GPtrArray *textview_scan_header  (TextView       *textview,
 142                                          FILE           *fp);
 143 static void textview_show_header        (TextView       *textview,
 144                                          GPtrArray      *headers);
 145
 146 static gint textview_key_pressed                (GtkWidget      *widget,
 147                                                  GdkEventKey    *event,
 148                                                  TextView       *textview);
 149 static gboolean textview_motion_notify          (GtkWidget      *widget,
 150                                                  GdkEventMotion *motion,
 151                                                  TextView       *textview);
 152 static gboolean textview_leave_notify           (GtkWidget        *widget,
 153                                                  GdkEventCrossing *event,
 154                                                  TextView         *textview);
 155 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 156                                                  GdkEventVisibility *event,
 157                                                  TextView       *textview);
 158 static void textview_uri_update                 (TextView       *textview,
 159                                                  gint           x,
 160                                                  gint           y);
 161 static gboolean textview_get_uri_range          (TextView       *textview,
 162                                                  GtkTextIter    *iter,
 163                                                  GtkTextTag     *tag,
 164                                                  GtkTextIter    *start_iter,
 165                                                  GtkTextIter    *end_iter);
 166 static RemoteURI *textview_get_uri_from_range   (TextView       *textview,
 167                                                  GtkTextIter    *iter,
 168                                                  GtkTextTag     *tag,
 169                                                  GtkTextIter    *start_iter,
 170                                                  GtkTextIter    *end_iter);
 171 static RemoteURI *textview_get_uri              (TextView       *textview,
 172                                                  GtkTextIter    *iter,
 173                                                  GtkTextTag     *tag);
 174 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 175                                                  GObject        *obj,
 176                                                  GdkEvent       *event,
 177                                                  GtkTextIter    *iter,
 178                                                  TextView       *textview);
 179
 180 static void textview_smooth_scroll_do           (TextView       *textview,
 181                                                  gfloat          old_value,
 182                                                  gfloat          last_value,
 183                                                  gint            step);
 184 static void textview_smooth_scroll_one_line     (TextView       *textview,
 185                                                  gboolean        up);
 186 static gboolean textview_smooth_scroll_page     (TextView       *textview,
 187                                                  gboolean        up);
 188
 189 static gboolean textview_uri_security_check     (TextView       *textview,
 190                                                  RemoteURI      *uri);
 191 static void textview_uri_list_remove_all        (GSList         *uri_list);
 192
 193 static void open_uri_cb                         (TextView       *textview,
 194                                                  guint           action,
 195                                                  void           *data);
 196 static void copy_uri_cb                         (TextView       *textview,
 197                                                  guint           action,
 198                                                  void           *data);
 199 static void add_uri_to_addrbook_cb              (TextView       *textview,
 200                                                  guint           action,
 201                                                  void           *data);
 202 static void mail_to_uri_cb                      (TextView       *textview,
 203                                                  guint           action,
 204                                                  void           *data);
 205 static void copy_mail_to_uri_cb                 (TextView       *textview,
 206                                                  guint           action,
 207                                                  void           *data);
 208 static void save_file_cb                        (TextView       *textview,
 209                                                  guint           action,
 210                                                  void           *data);
 211
 212 static GtkItemFactoryEntry textview_link_popup_entries[] =
 213 {
 214         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 215         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 216 };
 217
 218 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 219 {
 220         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 221         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 222         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 223 };
 224
 225 static GtkItemFactoryEntry textview_file_popup_entries[] =
 226 {
 227         {N_("/_Save this image..."),            NULL, save_file_cb, 0, NULL},
 228 };
 229
 230
 231 TextView *textview_create(void)
 232 {
 233         TextView *textview;
 234         GtkWidget *vbox;
 235         GtkWidget *scrolledwin;
 236         GtkWidget *text;
 237         GtkTextBuffer *buffer;
 238         GtkClipboard *clipboard;
 239         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 240         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 241         gint n_entries;
 242
 243         debug_print("Creating text view...\n");
 244         textview = g_new0(TextView, 1);
 245
 246         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 247         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 248                                        GTK_POLICY_AUTOMATIC,
 249                                        GTK_POLICY_AUTOMATIC);
 250         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 251                                             GTK_SHADOW_IN);
 252         gtk_widget_set_size_request
 253                 (scrolledwin, prefs_common.mainview_width, -1);
 254
 255         /* create GtkSText widgets for single-byte and multi-byte character */
 256         text = gtk_text_view_new();
 257         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 258         gtk_widget_show(text);
 259         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 260         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 261         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 262         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 263         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 264
 265         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 266         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 267         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 268
 269         gtk_widget_ensure_style(text);
 270
 271         gtk_widget_ref(scrolledwin);
 272
 273         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 274
 275         g_signal_connect(G_OBJECT(text), "key-press-event",
 276                          G_CALLBACK(textview_key_pressed), textview);
 277         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 278                          G_CALLBACK(textview_motion_notify), textview);
 279         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 280                          G_CALLBACK(textview_leave_notify), textview);
 281         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 282                          G_CALLBACK(textview_visibility_notify), textview);
 283
 284         gtk_widget_show(scrolledwin);
 285
 286         vbox = gtk_vbox_new(FALSE, 0);
 287         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 288
 289         gtk_widget_show(vbox);
 290
 291         n_entries = sizeof(textview_link_popup_entries) /
 292                 sizeof(textview_link_popup_entries[0]);
 293         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 294                                       "<UriPopupMenu>", &link_popupfactory,
 295                                       textview);
 296
 297         n_entries = sizeof(textview_mail_popup_entries) /
 298                 sizeof(textview_mail_popup_entries[0]);
 299         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 300                                       "<UriPopupMenu>", &mail_popupfactory,
 301                                       textview);
 302
 303         n_entries = sizeof(textview_file_popup_entries) /
 304                 sizeof(textview_file_popup_entries[0]);
 305         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 306                                       "<FilePopupMenu>", &file_popupfactory,
 307                                       textview);
 308
 309         textview->vbox               = vbox;
 310         textview->scrolledwin        = scrolledwin;
 311         textview->text               = text;
 312         textview->uri_list           = NULL;
 313         textview->body_pos           = 0;
 314         textview->show_all_headers   = FALSE;
 315         textview->last_buttonpress   = GDK_NOTHING;
 316         textview->link_popup_menu    = link_popupmenu;
 317         textview->link_popup_factory = link_popupfactory;
 318         textview->mail_popup_menu    = mail_popupmenu;
 319         textview->mail_popup_factory = mail_popupfactory;
 320         textview->file_popup_menu    = file_popupmenu;
 321         textview->file_popup_factory = file_popupfactory;
 322
 323         return textview;
 324 }
 325
 326 static void textview_create_tags(GtkTextView *text, TextView *textview)
 327 {
 328         GtkTextBuffer *buffer;
 329         GtkTextTag *tag;
 330         static PangoFontDescription *font_desc, *bold_font_desc;
 331
 332         if (!font_desc)
 333                 font_desc = pango_font_description_from_string
 334                         (NORMAL_FONT);
 335
 336         if (!bold_font_desc) {
 337                 bold_font_desc = pango_font_description_from_string
 338                         (BOLD_FONT);
 339                 pango_font_description_set_weight
 340                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 341         }
 342
 343         buffer = gtk_text_view_get_buffer(text);
 344
 345         gtk_text_buffer_create_tag(buffer, "header",
 346                                    "pixels-above-lines", 0,
 347                                    "pixels-above-lines-set", TRUE,
 348                                    "pixels-below-lines", 0,
 349                                    "pixels-below-lines-set", TRUE,
 350                                    "font-desc", font_desc,
 351                                    "left-margin", 0,
 352                                    "left-margin-set", TRUE,
 353                                    NULL);
 354         gtk_text_buffer_create_tag(buffer, "header_title",
 355                                    "font-desc", bold_font_desc,
 356                                    NULL);
 357         gtk_text_buffer_create_tag(buffer, "quote0",
 358                                    "foreground-gdk", &quote_colors[0],
 359                                    NULL);
 360         gtk_text_buffer_create_tag(buffer, "quote1",
 361                                    "foreground-gdk", &quote_colors[1],
 362                                    NULL);
 363         gtk_text_buffer_create_tag(buffer, "quote2",
 364                                    "foreground-gdk", &quote_colors[2],
 365                                    NULL);
 366         gtk_text_buffer_create_tag(buffer, "emphasis",
 367                                    "foreground-gdk", &emphasis_color,
 368                                    NULL);
 369         gtk_text_buffer_create_tag(buffer, "signature",
 370                                    "foreground-gdk", &signature_color,
 371                                    NULL);
 372         tag = gtk_text_buffer_create_tag(buffer, "link",
 373                                          "foreground-gdk", &uri_color,
 374                                          NULL);
 375         gtk_text_buffer_create_tag(buffer, "link-hover",
 376                                    "foreground-gdk", &uri_color,
 377                                    "underline", PANGO_UNDERLINE_SINGLE,
 378                                    NULL);
 379         g_signal_connect(G_OBJECT(tag), "event",
 380                          G_CALLBACK(textview_uri_button_pressed), textview);
 381  }
 382
 383 void textview_init(TextView *textview)
 384 {
 385         if (!hand_cursor)
 386                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 387         if (!text_cursor)
 388                 text_cursor = gdk_cursor_new(GDK_XTERM);
 389
 390         textview_reflect_prefs(textview);
 391         textview_set_all_headers(textview, FALSE);
 392         textview_set_font(textview, NULL);
 393         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 394 }
 395
 396 #define CHANGE_TAG_COLOR(tagname, color) { \
 397         tag = gtk_text_tag_table_lookup(tags, tagname); \
 398         if (tag) \
 399                 g_object_set(G_OBJECT(tag), "foreground-gdk", color, NULL); \
 400 }
 401
 402 static void textview_update_message_colors(TextView *textview)
 403 {
 404         GdkColor black = {0, 0, 0, 0};
 405         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 406         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 407
 408         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 409         GtkTextTag *tag = NULL;
 410
 411         if (prefs_common.enable_color) {
 412                 /* grab the quote colors, converting from an int to a GdkColor */
 413                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 414                                                &quote_colors[0]);
 415                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 416                                                &quote_colors[1]);
 417                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 418                                                &quote_colors[2]);
 419                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 420                                                &uri_color);
 421                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 422                                                &signature_color);
 423                 emphasis_color = colored_emphasis;
 424         } else {
 425                 quote_colors[0] = quote_colors[1] = quote_colors[2] =
 426                         uri_color = emphasis_color = signature_color = black;
 427         }
 428         CHANGE_TAG_COLOR("quote0", &quote_colors[0]);
 429         CHANGE_TAG_COLOR("quote1", &quote_colors[1]);
 430         CHANGE_TAG_COLOR("quote2", &quote_colors[2]);
 431         CHANGE_TAG_COLOR("emphasis", &emphasis_color);
 432         CHANGE_TAG_COLOR("signature", &signature_color);
 433         CHANGE_TAG_COLOR("link", &uri_color);
 434         CHANGE_TAG_COLOR("link-hover", &uri_color);
 435
 436 }
 437 #undef CHANGE_TAG_COLOR
 438
 439 void textview_reflect_prefs(TextView *textview)
 440 {
 441         textview_set_font(textview, NULL);
 442         textview_update_message_colors(textview);
 443         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 444                                          prefs_common.textview_cursor_visible);
 445 }
 446
 447 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 448                            const gchar *file)
 449 {
 450         textview_clear(textview);
 451
 452         textview_add_parts(textview, mimeinfo);
 453
 454         textview_set_position(textview, 0);
 455 }
 456
 457 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 458 {
 459         g_return_if_fail(mimeinfo != NULL);
 460         g_return_if_fail(fp != NULL);
 461
 462         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 463             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 464                 textview_clear(textview);
 465                 textview_add_parts(textview, mimeinfo);
 466                 return;
 467         }
 468
 469         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 470                 perror("fseek");
 471
 472         textview_clear(textview);
 473
 474         if (mimeinfo->type == MIMETYPE_MULTIPART)
 475                 textview_add_parts(textview, mimeinfo);
 476         else
 477                 textview_write_body(textview, mimeinfo);
 478
 479 }
 480
 481 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 482 {
 483         GtkTextView *text;
 484         GtkTextBuffer *buffer;
 485         GtkTextIter iter, start_iter;
 486         gchar buf[BUFFSIZE];
 487         GPtrArray *headers = NULL;
 488         const gchar *name;
 489         gchar *content_type;
 490         gint charcount;
 491
 492         g_return_if_fail(mimeinfo != NULL);
 493         text = GTK_TEXT_VIEW(textview->text);
 494         buffer = gtk_text_view_get_buffer(text);
 495         charcount = gtk_text_buffer_get_char_count(buffer);
 496         gtk_text_buffer_get_end_iter(buffer, &iter);
 497
 498         if (mimeinfo->type == MIMETYPE_MULTIPART) return;
 499
 500         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 501                 FILE *fp;
 502
 503                 fp = fopen(mimeinfo->data.filename, "rb");
 504                 fseek(fp, mimeinfo->offset, SEEK_SET);
 505                 headers = textview_scan_header(textview, fp);
 506                 if (headers) {
 507                         if (charcount > 0)
 508                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 509                         textview_show_header(textview, headers);
 510                         procheader_header_array_destroy(headers);
 511                 }
 512                 fclose(fp);
 513                 return;
 514         }
 515
 516         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 517         content_type = procmime_get_content_type_str(mimeinfo->type,
 518                                                      mimeinfo->subtype);
 519         if (name == NULL)
 520                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 521         if (name != NULL)
 522                 g_snprintf(buf, sizeof(buf), "\n[%s  %s (%d bytes)]\n",
 523                            name, content_type, mimeinfo->length);
 524         else
 525                 g_snprintf(buf, sizeof(buf), "\n[%s (%d bytes)]\n",
 526                            content_type, mimeinfo->length);
 527
 528         g_free(content_type);
 529
 530         if (mimeinfo->type != MIMETYPE_TEXT) {
 531                 gtk_text_buffer_insert(buffer, &iter, buf, -1);
 532                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 533                     prefs_common.inline_img ) {
 534                         GdkPixbuf *pixbuf;
 535                         GError *error = NULL;
 536                         gchar *filename;
 537                         RemoteURI *uri;
 538                         gchar *uri_str;
 539                         FILE *fp;
 540
 541                         fp = fopen(mimeinfo->data.filename, "rb");
 542                         fseek(fp, mimeinfo->offset, SEEK_SET);
 543
 544                         filename = procmime_get_tmp_file_name(mimeinfo);
 545                         if (procmime_get_part(filename, mimeinfo) < 0) {
 546                                 g_warning("Can't get the image file.");
 547                                 g_free(filename);
 548                                 return;
 549                         }
 550
 551                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 552                         if (error != NULL) {
 553                                 g_warning("%s\n", error->message);
 554                                 g_error_free(error);
 555                         }
 556                         if (!pixbuf) {
 557                                 g_warning("Can't load the image.");
 558                                 g_free(filename);
 559                                 return;
 560                         }
 561
 562                         if (prefs_common.resize_img) {
 563                                 int new_width, new_height;
 564                                 GdkPixbuf *scaled;
 565                                 image_viewer_get_resized_size(gdk_pixbuf_get_width(pixbuf),
 566                                                  gdk_pixbuf_get_height(pixbuf),
 567                                                  textview->scrolledwin->allocation.width - 100,
 568                                                  gdk_pixbuf_get_height(pixbuf),
 569                                                  &new_width, &new_height);
 570                                 scaled = gdk_pixbuf_scale_simple
 571                                         (pixbuf, new_width, new_height, GDK_INTERP_BILINEAR);
 572
 573                                 g_object_unref(pixbuf);
 574                                 pixbuf = scaled;
 575                         }
 576
 577                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 578                         if (uri_str) {
 579                                 uri = g_new(RemoteURI, 1);
 580                                 uri->uri = uri_str;
 581                                 uri->start = gtk_text_iter_get_offset(&iter);
 582
 583                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 584
 585                                 uri->end = uri->start + 1;
 586                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 587                                 textview->uri_list =
 588                                         g_slist_append(textview->uri_list, uri);
 589
 590                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 591                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 592                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 593                                                 &start_iter, &iter);
 594                         } else {
 595                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 596                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 597                         }
 598
 599                         g_object_unref(pixbuf);
 600                         g_free(filename);
 601                 }
 602         } else if (mimeinfo->disposition != DISPOSITIONTYPE_ATTACHMENT) {
 603                 if (prefs_common.display_header && (charcount > 0))
 604                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 605
 606                 textview_write_body(textview, mimeinfo);
 607         }
 608 }
 609
 610 static void recursive_add_parts(TextView *textview, GNode *node)
 611 {
 612         GNode * iter;
 613         MimeInfo *mimeinfo;
 614
 615         mimeinfo = (MimeInfo *) node->data;
 616
 617         textview_add_part(textview, mimeinfo);
 618
 619         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 620             (mimeinfo->type != MIMETYPE_MESSAGE))
 621                 return;
 622
 623         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 624                 GNode * prefered_body;
 625                 int prefered_score;
 626
 627                 /*
 628                   text/plain : score 3
 629                   text/ *    : score 2
 630                   other      : score 1
 631                 */
 632                 prefered_body = NULL;
 633                 prefered_score = 0;
 634
 635                 for (iter = g_node_first_child(node) ; iter != NULL ;
 636                      iter = g_node_next_sibling(iter)) {
 637                         int score;
 638                         MimeInfo * submime;
 639
 640                         score = 1;
 641                         submime = (MimeInfo *) iter->data;
 642                         if (submime->type == MIMETYPE_TEXT)
 643                                 score = 2;
 644
 645                         if (submime->subtype != NULL) {
 646                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 647                                         score = 3;
 648                         }
 649
 650                         if (score > prefered_score) {
 651                                 prefered_score = score;
 652                                 prefered_body = iter;
 653                         }
 654                 }
 655
 656                 if (prefered_body != NULL) {
 657                         recursive_add_parts(textview, prefered_body);
 658                 }
 659         }
 660         else {
 661                 for (iter = g_node_first_child(node) ; iter != NULL ;
 662                      iter = g_node_next_sibling(iter)) {
 663                         recursive_add_parts(textview, iter);
 664                 }
 665         }
 666 }
 667
 668 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 669 {
 670         g_return_if_fail(mimeinfo != NULL);
 671
 672         recursive_add_parts(textview, mimeinfo->node);
 673 }
 674
 675 #define TEXT_INSERT(str) \
 676         gtk_text_buffer_insert(buffer, &iter, str, -1)
 677
 678 void textview_show_error(TextView *textview)
 679 {
 680         GtkTextView *text;
 681         GtkTextBuffer *buffer;
 682         GtkTextIter iter;
 683
 684         textview_set_font(textview, NULL);
 685         textview_clear(textview);
 686
 687         text = GTK_TEXT_VIEW(textview->text);
 688         buffer = gtk_text_view_get_buffer(text);
 689         gtk_text_buffer_get_start_iter(buffer, &iter);
 690
 691         TEXT_INSERT(_("This message can't be displayed.\n"));
 692
 693 }
 694
 695 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 696 {
 697         GtkTextView *text;
 698         GtkTextBuffer *buffer;
 699         GtkTextIter iter;
 700
 701         if (!partinfo) return;
 702
 703         textview_set_font(textview, NULL);
 704         textview_clear(textview);
 705
 706         text = GTK_TEXT_VIEW(textview->text);
 707         buffer = gtk_text_view_get_buffer(text);
 708         gtk_text_buffer_get_start_iter(buffer, &iter);
 709
 710         TEXT_INSERT(_("The following can be performed on this part by "));
 711         TEXT_INSERT(_("right-clicking the icon or list item:\n"));
 712
 713         TEXT_INSERT(_("    To save select 'Save as...' (Shortcut key: 'y')\n"));
 714         TEXT_INSERT(_("    To display as text select 'Display as text' "));
 715         TEXT_INSERT(_("(Shortcut key: 't')\n"));
 716         TEXT_INSERT(_("    To open with an external program select 'Open' "));
 717         TEXT_INSERT(_("(Shortcut key: 'l'),\n"));
 718         TEXT_INSERT(_("    (alternately double-click, or click the middle "));
 719         TEXT_INSERT(_("mouse button),\n"));
 720         TEXT_INSERT(_("    or 'Open with...' (Shortcut key: 'o')\n"));
 721
 722 }
 723
 724 #undef TEXT_INSERT
 725
 726 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 727 {
 728         FILE *tmpfp;
 729         gchar buf[BUFFSIZE];
 730         CodeConverter *conv;
 731         const gchar *charset;
 732
 733         if (textview->messageview->forced_charset)
 734                 charset = textview->messageview->forced_charset;
 735         else
 736                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 737
 738         textview_set_font(textview, charset);
 739
 740         conv = conv_code_converter_new(charset);
 741
 742         procmime_force_encoding(textview->messageview->forced_encoding);
 743
 744         textview->is_in_signature = FALSE;
 745
 746         procmime_decode_content(mimeinfo);
 747
 748         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 749             prefs_common.render_html) {
 750                 gchar *filename;
 751
 752                 filename = procmime_get_tmp_file_name(mimeinfo);
 753                 if (procmime_get_part(filename, mimeinfo) == 0) {
 754                         tmpfp = fopen(filename, "rb");
 755                         textview_show_html(textview, tmpfp, conv);
 756                         fclose(tmpfp);
 757                         unlink(filename);
 758                 }
 759                 g_free(filename);
 760         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 761                 gchar *filename;
 762
 763                 filename = procmime_get_tmp_file_name(mimeinfo);
 764                 if (procmime_get_part(filename, mimeinfo) == 0) {
 765                         tmpfp = fopen(filename, "rb");
 766                         textview_show_ertf(textview, tmpfp, conv);
 767                         fclose(tmpfp);
 768                         unlink(filename);
 769                 }
 770                 g_free(filename);
 771         } else {
 772                 tmpfp = fopen(mimeinfo->data.filename, "rb");
 773                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 774                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 775                 while ((fgets(buf, sizeof(buf), tmpfp) != NULL) &&
 776                        (ftell(tmpfp) <= mimeinfo->offset + mimeinfo->length))
 777                         textview_write_line(textview, buf, conv);
 778                 fclose(tmpfp);
 779         }
 780
 781         conv_code_converter_destroy(conv);
 782         procmime_force_encoding(0);
 783 }
 784
 785 static void textview_show_html(TextView *textview, FILE *fp,
 786                                CodeConverter *conv)
 787 {
 788         HTMLParser *parser;
 789         gchar *str;
 790
 791         parser = html_parser_new(fp, conv);
 792         g_return_if_fail(parser != NULL);
 793
 794         while ((str = html_parse(parser)) != NULL) {
 795                 if (parser->state == HTML_HREF) {
 796                         /* first time : get and copy the URL */
 797                         if (parser->href == NULL) {
 798                                 /* ALF - the sylpheed html parser returns an empty string,
 799                                  * if still inside an <a>, but already parsed past HREF */
 800                                 str = strtok(str, " ");
 801                                 if (str) {
 802                                         parser->href = g_strdup(str);
 803                                         /* the URL may (or not) be followed by the
 804                                          * referenced text */
 805                                         str = strtok(NULL, "");
 806                                 }
 807                         }
 808                         if (str != NULL)
 809                                 textview_write_link(textview, str, parser->href, NULL);
 810                 } else
 811                         textview_write_line(textview, str, NULL);
 812         }
 813         textview_write_line(textview, "\n", NULL);
 814         html_parser_destroy(parser);
 815 }
 816
 817 static void textview_show_ertf(TextView *textview, FILE *fp,
 818                                CodeConverter *conv)
 819 {
 820         ERTFParser *parser;
 821         gchar *str;
 822
 823         parser = ertf_parser_new(fp, conv);
 824         g_return_if_fail(parser != NULL);
 825
 826         while ((str = ertf_parse(parser)) != NULL) {
 827                 textview_write_line(textview, str, NULL);
 828         }
 829
 830         ertf_parser_destroy(parser);
 831 }
 832
 833 #define ADD_TXT_POS(bp_, ep_, pti_) \
 834         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
 835                 last = last->next; \
 836                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
 837                 last->next = NULL; \
 838         } else { \
 839                 g_warning("alloc error scanning URIs\n"); \
 840                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
 841                                                          linebuf, -1, \
 842                                                          fg_tag, NULL); \
 843                 return; \
 844         }
 845
 846 /* textview_make_clickable_parts() - colorizes clickable parts */
 847 static void textview_make_clickable_parts(TextView *textview,
 848                                           const gchar *fg_tag,
 849                                           const gchar *uri_tag,
 850                                           const gchar *linebuf)
 851 {
 852         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
 853         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 854         GtkTextIter iter;
 855         gchar *mybuf = g_strdup(linebuf);
 856
 857         /* parse table - in order of priority */
 858         struct table {
 859                 const gchar *needle; /* token */
 860
 861                 /* token search function */
 862                 gchar    *(*search)     (const gchar *haystack,
 863                                          const gchar *needle);
 864                 /* part parsing function */
 865                 gboolean  (*parse)      (const gchar *start,
 866                                          const gchar *scanpos,
 867                                          const gchar **bp_,
 868                                          const gchar **ep_);
 869                 /* part to URI function */
 870                 gchar    *(*build_uri)  (const gchar *bp,
 871                                          const gchar *ep);
 872         };
 873
 874         static struct table parser[] = {
 875                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
 876                 {"https://", strcasestr, get_uri_part,   make_uri_string},
 877                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
 878                 {"www.",     strcasestr, get_uri_part,   make_http_string},
 879                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
 880                 {"@",        strcasestr, get_email_part, make_email_string}
 881         };
 882         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
 883
 884         gint  n;
 885         const gchar *walk, *bp, *ep;
 886
 887         struct txtpos {
 888                 const gchar     *bp, *ep;       /* text position */
 889                 gint             pti;           /* index in parse table */
 890                 struct txtpos   *next;          /* next */
 891         } head = {NULL, NULL, 0,  NULL}, *last = &head;
 892
 893         if (!g_utf8_validate(linebuf, -1, NULL)) {
 894                 mybuf = g_malloc(strlen(linebuf)*2 +1);
 895                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
 896         }
 897
 898         gtk_text_buffer_get_end_iter(buffer, &iter);
 899
 900         /* parse for clickable parts, and build a list of begin and end positions  */
 901         for (walk = mybuf, n = 0;;) {
 902                 gint last_index = PARSE_ELEMS;
 903                 gchar *scanpos = NULL;
 904
 905                 /* FIXME: this looks phony. scanning for anything in the parse table */
 906                 for (n = 0; n < PARSE_ELEMS; n++) {
 907                         gchar *tmp;
 908
 909                         tmp = parser[n].search(walk, parser[n].needle);
 910                         if (tmp) {
 911                                 if (scanpos == NULL || tmp < scanpos) {
 912                                         scanpos = tmp;
 913                                         last_index = n;
 914                                 }
 915                         }
 916                 }
 917
 918                 if (scanpos) {
 919                         /* check if URI can be parsed */
 920                         if (parser[last_index].parse(walk, scanpos, &bp, &ep)
 921                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
 922                                         ADD_TXT_POS(bp, ep, last_index);
 923                                         walk = ep;
 924                         } else
 925                                 walk = scanpos +
 926                                         strlen(parser[last_index].needle);
 927                 } else
 928                         break;
 929         }
 930
 931         /* colorize this line */
 932         if (head.next) {
 933                 const gchar *normal_text = mybuf;
 934
 935                 /* insert URIs */
 936                 for (last = head.next; last != NULL;
 937                      normal_text = last->ep, last = last->next) {
 938                         RemoteURI *uri;
 939                         uri = g_new(RemoteURI, 1);
 940                         if (last->bp - normal_text > 0)
 941                                 gtk_text_buffer_insert_with_tags_by_name
 942                                         (buffer, &iter,
 943                                          normal_text,
 944                                          last->bp - normal_text,
 945                                          fg_tag, NULL);
 946                         uri->uri = parser[last->pti].build_uri(last->bp,
 947                                                                last->ep);
 948                         uri->start = gtk_text_iter_get_offset(&iter);
 949                         gtk_text_buffer_insert_with_tags_by_name
 950                                 (buffer, &iter, last->bp, last->ep - last->bp,
 951                                  uri_tag, fg_tag, NULL);
 952                         uri->end = gtk_text_iter_get_offset(&iter);
 953                         uri->filename = NULL;
 954                         textview->uri_list =
 955                                 g_slist_append(textview->uri_list, uri);
 956                 }
 957
 958                 if (*normal_text)
 959                         gtk_text_buffer_insert_with_tags_by_name
 960                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
 961         } else {
 962                 gtk_text_buffer_insert_with_tags_by_name
 963                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
 964         }
 965         g_free(mybuf);
 966 }
 967
 968 #undef ADD_TXT_POS
 969
 970 static void textview_write_line(TextView *textview, const gchar *str,
 971                                 CodeConverter *conv)
 972 {
 973         GtkTextView *text;
 974         GtkTextBuffer *buffer;
 975         GtkTextIter iter;
 976         gchar buf[BUFFSIZE];
 977         gchar *fg_color;
 978         gint quotelevel = -1;
 979         gchar quote_tag_str[10];
 980
 981         text = GTK_TEXT_VIEW(textview->text);
 982         buffer = gtk_text_view_get_buffer(text);
 983         gtk_text_buffer_get_end_iter(buffer, &iter);
 984
 985         if (!conv)
 986                 strncpy2(buf, str, sizeof(buf));
 987         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
 988                 conv_localetodisp(buf, sizeof(buf), str);
 989
 990         strcrchomp(buf);
 991         //if (prefs_common.conv_mb_alnum) conv_mb_alnum(buf);
 992         fg_color = NULL;
 993
 994         /* change color of quotation
 995            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
 996            Up to 3 levels of quotations are detected, and each
 997            level is colored using a different color. */
 998         if (prefs_common.enable_color
 999             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1000                 quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1001
1002                 /* set up the correct foreground color */
1003                 if (quotelevel > 2) {
1004                         /* recycle colors */
1005                         if (prefs_common.recycle_quote_colors)
1006                                 quotelevel %= 3;
1007                         else
1008                                 quotelevel = 2;
1009                 }
1010         }
1011
1012         if (quotelevel == -1)
1013                 fg_color = NULL;
1014         else {
1015                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1016                            "quote%d", quotelevel);
1017                 fg_color = quote_tag_str;
1018         }
1019
1020         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1021                 fg_color = "signature";
1022                 textview->is_in_signature = TRUE;
1023         }
1024
1025         textview_make_clickable_parts(textview, fg_color, "link", buf);
1026 }
1027
1028 void textview_write_link(TextView *textview, const gchar *str,
1029                          const gchar *uri, CodeConverter *conv)
1030 {
1031         GdkColor *link_color = NULL;
1032         GtkTextView *text;
1033         GtkTextBuffer *buffer;
1034         GtkTextIter iter;
1035         gchar buf[BUFFSIZE];
1036         gchar *bufp;
1037         RemoteURI *r_uri;
1038
1039         if (!str || *str == '\0')
1040                 return;
1041         if (!uri)
1042                 return;
1043
1044         text = GTK_TEXT_VIEW(textview->text);
1045         buffer = gtk_text_view_get_buffer(text);
1046         gtk_text_buffer_get_end_iter(buffer, &iter);
1047
1048         if (!conv)
1049                 strncpy2(buf, str, sizeof(buf));
1050         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1051                 conv_utf8todisp(buf, sizeof(buf), str);
1052
1053         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1054                 return;
1055
1056         strcrchomp(buf);
1057
1058         gtk_text_buffer_get_end_iter(buffer, &iter);
1059         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1060                 gunichar ch;
1061
1062                 ch = g_utf8_get_char(bufp);
1063                 if (!g_unichar_isspace(ch))
1064                         break;
1065         }
1066         if (bufp > buf)
1067                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1068
1069         if (prefs_common.enable_color) {
1070                 link_color = &uri_color;
1071         }
1072         r_uri = g_new(RemoteURI, 1);
1073         r_uri->uri = g_strdup(uri);
1074         r_uri->start = gtk_text_iter_get_offset(&iter);
1075         gtk_text_buffer_insert_with_tags_by_name
1076                 (buffer, &iter, bufp, -1, "link", NULL);
1077         r_uri->end = gtk_text_iter_get_offset(&iter);
1078         r_uri->filename = NULL;
1079         textview->uri_list = g_slist_append(textview->uri_list, r_uri);
1080 }
1081
1082 void textview_clear(TextView *textview)
1083 {
1084         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1085         GtkTextBuffer *buffer;
1086
1087         buffer = gtk_text_view_get_buffer(text);
1088         gtk_text_buffer_set_text(buffer, "", -1);
1089
1090         TEXTVIEW_STATUSBAR_POP(textview);
1091         textview_uri_list_remove_all(textview->uri_list);
1092         textview->uri_list = NULL;
1093
1094         textview->body_pos = 0;
1095 }
1096
1097 void textview_destroy(TextView *textview)
1098 {
1099         textview_uri_list_remove_all(textview->uri_list);
1100         textview->uri_list = NULL;
1101
1102         g_free(textview);
1103 }
1104
1105 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1106 {
1107         textview->show_all_headers = all_headers;
1108 }
1109
1110 void textview_set_font(TextView *textview, const gchar *codeset)
1111 {
1112         if (prefs_common.textfont) {
1113                 PangoFontDescription *font_desc = NULL;
1114
1115                 font_desc = pango_font_description_from_string
1116                                                 (prefs_common.textfont);
1117                 if (font_desc) {
1118                         gtk_widget_modify_font(textview->text, font_desc);
1119                         pango_font_description_free(font_desc);
1120                 }
1121         }
1122         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1123                                              prefs_common.line_space / 2);
1124         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1125                                              prefs_common.line_space / 2);
1126 }
1127
1128 void textview_set_text(TextView *textview, const gchar *text)
1129 {
1130         GtkTextView *view;
1131         GtkTextBuffer *buffer;
1132
1133         g_return_if_fail(textview != NULL);
1134         g_return_if_fail(text != NULL);
1135
1136         textview_clear(textview);
1137
1138         view = GTK_TEXT_VIEW(textview->text);
1139         buffer = gtk_text_view_get_buffer(view);
1140         gtk_text_buffer_set_text(buffer, text, strlen(text));
1141 }
1142
1143 enum
1144 {
1145         H_DATE          = 0,
1146         H_FROM          = 1,
1147         H_TO            = 2,
1148         H_NEWSGROUPS    = 3,
1149         H_SUBJECT       = 4,
1150         H_CC            = 5,
1151         H_REPLY_TO      = 6,
1152         H_FOLLOWUP_TO   = 7,
1153         H_X_MAILER      = 8,
1154         H_X_NEWSREADER  = 9,
1155         H_USER_AGENT    = 10,
1156         H_ORGANIZATION  = 11,
1157 };
1158
1159 void textview_set_position(TextView *textview, gint pos)
1160 {
1161         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1162         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1163         GtkTextIter iter;
1164
1165         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
1166         gtk_text_buffer_place_cursor(buffer, &iter);
1167         gtk_text_view_scroll_to_iter(text, &iter, 0.0, FALSE, 0.0, 0.0);
1168 }
1169
1170 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1171 {
1172         gchar buf[BUFFSIZE];
1173         GPtrArray *headers, *sorted_headers;
1174         GSList *disphdr_list;
1175         Header *header;
1176         gint i;
1177
1178         g_return_val_if_fail(fp != NULL, NULL);
1179
1180         if (textview->show_all_headers)
1181                 return procheader_get_header_array_asis(fp);
1182
1183         if (!prefs_common.display_header) {
1184                 while (fgets(buf, sizeof(buf), fp) != NULL)
1185                         if (buf[0] == '\r' || buf[0] == '\n') break;
1186                 return NULL;
1187         }
1188
1189         headers = procheader_get_header_array_asis(fp);
1190
1191         sorted_headers = g_ptr_array_new();
1192
1193         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1194              disphdr_list = disphdr_list->next) {
1195                 DisplayHeaderProp *dp =
1196                         (DisplayHeaderProp *)disphdr_list->data;
1197
1198                 for (i = 0; i < headers->len; i++) {
1199                         header = g_ptr_array_index(headers, i);
1200
1201                         if (procheader_headername_equal(header->name,
1202                                                         dp->name)) {
1203                                 if (dp->hidden)
1204                                         procheader_header_free(header);
1205                                 else
1206                                         g_ptr_array_add(sorted_headers, header);
1207
1208                                 g_ptr_array_remove_index(headers, i);
1209                                 i--;
1210                         }
1211                 }
1212         }
1213
1214         if (prefs_common.show_other_header) {
1215                 for (i = 0; i < headers->len; i++) {
1216                         header = g_ptr_array_index(headers, i);
1217                         g_ptr_array_add(sorted_headers, header);
1218                 }
1219                 g_ptr_array_free(headers, TRUE);
1220         } else
1221                 procheader_header_array_destroy(headers);
1222
1223
1224         return sorted_headers;
1225 }
1226
1227 static void textview_show_header(TextView *textview, GPtrArray *headers)
1228 {
1229         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1230         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1231         GtkTextIter iter;
1232         Header *header;
1233         gint i;
1234
1235         g_return_if_fail(headers != NULL);
1236
1237         for (i = 0; i < headers->len; i++) {
1238                 header = g_ptr_array_index(headers, i);
1239                 g_return_if_fail(header->name != NULL);
1240
1241                 gtk_text_buffer_get_end_iter (buffer, &iter);
1242                 gtk_text_buffer_insert_with_tags_by_name
1243                         (buffer, &iter, header->name, -1,
1244                          "header_title", "header", NULL);
1245                 if (header->name[strlen(header->name) - 1] != ' ')
1246                 gtk_text_buffer_insert_with_tags_by_name
1247                                 (buffer, &iter, " ", 1,
1248                                  "header_title", "header", NULL);
1249
1250                 if (procheader_headername_equal(header->name, "Subject") ||
1251                     procheader_headername_equal(header->name, "From")    ||
1252                     procheader_headername_equal(header->name, "To")      ||
1253                     procheader_headername_equal(header->name, "Cc"))
1254                         unfold_line(header->body);
1255
1256                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1257                      procheader_headername_equal(header->name,
1258                                                  "X-Newsreader")) &&
1259                     strstr(header->body, "Sylpheed") != NULL) {
1260                         gtk_text_buffer_get_end_iter (buffer, &iter);
1261                         gtk_text_buffer_insert_with_tags_by_name
1262                                 (buffer, &iter, header->body, -1,
1263                                  "header", "emphasis", NULL);
1264                 } else {
1265                         textview_make_clickable_parts(textview, "header", "link",
1266                                                       header->body);
1267                 }
1268                 gtk_text_buffer_get_end_iter (buffer, &iter);
1269                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1270                                                          "header", NULL);
1271         }
1272 }
1273
1274 gboolean textview_search_string(TextView *textview, const gchar *str,
1275                                 gboolean case_sens)
1276 {
1277         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1278         GtkTextBuffer *buffer;
1279         GtkTextIter iter, match_pos;
1280         GtkTextMark *mark;
1281         gint len;
1282
1283         g_return_val_if_fail(str != NULL, FALSE);
1284
1285         buffer = gtk_text_view_get_buffer(text);
1286
1287         len = g_utf8_strlen(str, -1);
1288         g_return_val_if_fail(len >= 0, FALSE);
1289
1290         mark = gtk_text_buffer_get_insert(buffer);
1291         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
1292
1293         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
1294                                    &match_pos)) {
1295                 GtkTextIter end = match_pos;
1296
1297                 gtk_text_iter_forward_chars(&end, len);
1298                 /* place "insert" at the last character */
1299                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
1300                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
1301                 return TRUE;
1302         }
1303
1304         return FALSE;
1305 }
1306
1307 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1308                                          gboolean case_sens)
1309 {
1310         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1311         GtkTextBuffer *buffer;
1312         GtkTextIter iter, match_pos;
1313         GtkTextMark *mark;
1314         gint len;
1315
1316         g_return_val_if_fail(str != NULL, FALSE);
1317
1318         buffer = gtk_text_view_get_buffer(text);
1319
1320         len = g_utf8_strlen(str, -1);
1321         g_return_val_if_fail(len >= 0, FALSE);
1322
1323         mark = gtk_text_buffer_get_insert(buffer);
1324         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
1325
1326         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
1327                                             &match_pos)) {
1328                 GtkTextIter end = match_pos;
1329
1330                 gtk_text_iter_forward_chars(&end, len);
1331                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
1332                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
1333                 return TRUE;
1334         }
1335
1336         return FALSE;
1337 }
1338
1339 void textview_scroll_one_line(TextView *textview, gboolean up)
1340 {
1341         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1342         GtkAdjustment *vadj = text->vadjustment;
1343         gfloat upper;
1344
1345         if (prefs_common.enable_smooth_scroll) {
1346                 textview_smooth_scroll_one_line(textview, up);
1347                 return;
1348         }
1349
1350         if (!up) {
1351                 upper = vadj->upper - vadj->page_size;
1352                 if (vadj->value < upper) {
1353                         vadj->value += vadj->step_increment;
1354                         vadj->value = MIN(vadj->value, upper);
1355                         g_signal_emit_by_name(G_OBJECT(vadj),
1356                                               "value_changed", 0);
1357                 }
1358         } else {
1359                 if (vadj->value > 0.0) {
1360                         vadj->value -= vadj->step_increment;
1361                         vadj->value = MAX(vadj->value, 0.0);
1362                         g_signal_emit_by_name(G_OBJECT(vadj),
1363                                               "value_changed", 0);
1364                 }
1365         }
1366 }
1367
1368 gboolean textview_scroll_page(TextView *textview, gboolean up)
1369 {
1370         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1371         GtkAdjustment *vadj = text->vadjustment;
1372         gfloat upper;
1373         gfloat page_incr;
1374
1375         if (prefs_common.enable_smooth_scroll)
1376                 return textview_smooth_scroll_page(textview, up);
1377
1378         if (prefs_common.scroll_halfpage)
1379                 page_incr = vadj->page_increment / 2;
1380         else
1381                 page_incr = vadj->page_increment;
1382
1383         if (!up) {
1384                 upper = vadj->upper - vadj->page_size;
1385                 if (vadj->value < upper) {
1386                         vadj->value += page_incr;
1387                         vadj->value = MIN(vadj->value, upper);
1388                         g_signal_emit_by_name(G_OBJECT(vadj),
1389                                               "value_changed", 0);
1390                 } else
1391                         return FALSE;
1392         } else {
1393                 if (vadj->value > 0.0) {
1394                         vadj->value -= page_incr;
1395                         vadj->value = MAX(vadj->value, 0.0);
1396                         g_signal_emit_by_name(G_OBJECT(vadj),
1397                                               "value_changed", 0);
1398                 } else
1399                         return FALSE;
1400         }
1401
1402         return TRUE;
1403 }
1404
1405 static void textview_smooth_scroll_do(TextView *textview,
1406                                       gfloat old_value, gfloat last_value,
1407                                       gint step)
1408 {
1409         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1410         GtkAdjustment *vadj = text->vadjustment;
1411         gint change_value;
1412         gboolean up;
1413         gint i;
1414
1415         if (old_value < last_value) {
1416                 change_value = last_value - old_value;
1417                 up = FALSE;
1418         } else {
1419                 change_value = old_value - last_value;
1420                 up = TRUE;
1421         }
1422
1423         for (i = step; i <= change_value; i += step) {
1424                 vadj->value = old_value + (up ? -i : i);
1425                 g_signal_emit_by_name(G_OBJECT(vadj),
1426                                       "value_changed", 0);
1427         }
1428
1429         vadj->value = last_value;
1430         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1431
1432         gtk_widget_queue_draw(GTK_WIDGET(text));
1433 }
1434
1435 static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
1436 {
1437         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1438         GtkAdjustment *vadj = text->vadjustment;
1439         gfloat upper;
1440         gfloat old_value;
1441         gfloat last_value;
1442
1443         if (!up) {
1444                 upper = vadj->upper - vadj->page_size;
1445                 if (vadj->value < upper) {
1446                         old_value = vadj->value;
1447                         last_value = vadj->value + vadj->step_increment;
1448                         last_value = MIN(last_value, upper);
1449
1450                         textview_smooth_scroll_do(textview, old_value,
1451                                                   last_value,
1452                                                   prefs_common.scroll_step);
1453                 }
1454         } else {
1455                 if (vadj->value > 0.0) {
1456                         old_value = vadj->value;
1457                         last_value = vadj->value - vadj->step_increment;
1458                         last_value = MAX(last_value, 0.0);
1459
1460                         textview_smooth_scroll_do(textview, old_value,
1461                                                   last_value,
1462                                                   prefs_common.scroll_step);
1463                 }
1464         }
1465 }
1466
1467 static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
1468 {
1469         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1470         GtkAdjustment *vadj = text->vadjustment;
1471         gfloat upper;
1472         gfloat page_incr;
1473         gfloat old_value;
1474         gfloat last_value;
1475
1476         if (prefs_common.scroll_halfpage)
1477                 page_incr = vadj->page_increment / 2;
1478         else
1479                 page_incr = vadj->page_increment;
1480
1481         if (!up) {
1482                 upper = vadj->upper - vadj->page_size;
1483                 if (vadj->value < upper) {
1484                         old_value = vadj->value;
1485                         last_value = vadj->value + page_incr;
1486                         last_value = MIN(last_value, upper);
1487
1488                         textview_smooth_scroll_do(textview, old_value,
1489                                                   last_value,
1490                                                   prefs_common.scroll_step);
1491                 } else
1492                         return FALSE;
1493         } else {
1494                 if (vadj->value > 0.0) {
1495                         old_value = vadj->value;
1496                         last_value = vadj->value - page_incr;
1497                         last_value = MAX(last_value, 0.0);
1498
1499                         textview_smooth_scroll_do(textview, old_value,
1500                                                   last_value,
1501                                                   prefs_common.scroll_step);
1502                 } else
1503                         return FALSE;
1504         }
1505
1506         return TRUE;
1507 }
1508
1509 #define KEY_PRESS_EVENT_STOP() \
1510         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1511                                        "key_press_event");
1512
1513 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1514                                  TextView *textview)
1515 {
1516         SummaryView *summaryview = NULL;
1517         MessageView *messageview = textview->messageview;
1518
1519         if (!event) return FALSE;
1520         if (messageview->mainwin)
1521                 summaryview = messageview->mainwin->summaryview;
1522
1523         switch (event->keyval) {
1524         case GDK_Tab:
1525         case GDK_Home:
1526         case GDK_Left:
1527         case GDK_Up:
1528         case GDK_Right:
1529         case GDK_Down:
1530         case GDK_Page_Up:
1531         case GDK_Page_Down:
1532         case GDK_End:
1533         case GDK_Control_L:
1534         case GDK_Control_R:
1535                 return FALSE;
1536         case GDK_space:
1537                 if (summaryview)
1538                         summary_pass_key_press_event(summaryview, event);
1539                 else
1540                         textview_scroll_page
1541                                 (textview,
1542                                  (event->state &
1543                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1544                 break;
1545         case GDK_BackSpace:
1546                 textview_scroll_page(textview, TRUE);
1547                 break;
1548         case GDK_Return:
1549                 textview_scroll_one_line
1550                         (textview, (event->state &
1551                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1552                 break;
1553         case GDK_Delete:
1554                 if (summaryview)
1555                         summary_pass_key_press_event(summaryview, event);
1556                 break;
1557         case GDK_y:
1558         case GDK_t:
1559         case GDK_l:
1560                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
1561                         KEY_PRESS_EVENT_STOP();
1562                         mimeview_pass_key_press_event(messageview->mimeview,
1563                                                       event);
1564                         break;
1565                 }
1566                 /* possible fall through */
1567         default:
1568                 if (summaryview &&
1569                     event->window != messageview->mainwin->window->window) {
1570                         GdkEventKey tmpev = *event;
1571
1572                         tmpev.window = messageview->mainwin->window->window;
1573                         KEY_PRESS_EVENT_STOP();
1574                         gtk_widget_event(messageview->mainwin->window,
1575                                          (GdkEvent *)&tmpev);
1576                 }
1577                 break;
1578         }
1579
1580         return TRUE;
1581 }
1582
1583 static gboolean textview_motion_notify(GtkWidget *widget,
1584                                        GdkEventMotion *event,
1585                                        TextView *textview)
1586 {
1587         textview_uri_update(textview, event->x, event->y);
1588         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
1589
1590         return FALSE;
1591 }
1592
1593 static gboolean textview_leave_notify(GtkWidget *widget,
1594                                       GdkEventCrossing *event,
1595                                       TextView *textview)
1596 {
1597         textview_uri_update(textview, -1, -1);
1598
1599         return FALSE;
1600 }
1601
1602 static gboolean textview_visibility_notify(GtkWidget *widget,
1603                                            GdkEventVisibility *event,
1604                                            TextView *textview)
1605 {
1606         gint wx, wy;
1607         GdkWindow *window;
1608
1609         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
1610                                           GTK_TEXT_WINDOW_TEXT);
1611
1612         /* check if occurred for the text window part */
1613         if (window != event->window)
1614                 return FALSE;
1615
1616         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
1617         textview_uri_update(textview, wx, wy);
1618
1619         return FALSE;
1620 }
1621
1622 static void textview_uri_update(TextView *textview, gint x, gint y)
1623 {
1624         GtkTextBuffer *buffer;
1625         GtkTextIter start_iter, end_iter;
1626         RemoteURI *uri = NULL;
1627
1628         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1629
1630         if (x != -1 && y != -1) {
1631                 gint bx, by;
1632                 GtkTextIter iter;
1633                 GSList *tags;
1634                 GSList *cur;
1635
1636                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
1637                                                       GTK_TEXT_WINDOW_WIDGET,
1638                                                       x, y, &bx, &by);
1639                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
1640                                                    &iter, bx, by);
1641
1642                 tags = gtk_text_iter_get_tags(&iter);
1643                 for (cur = tags; cur != NULL; cur = cur->next) {
1644                         GtkTextTag *tag = cur->data;
1645                         char *name;
1646
1647                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
1648                         if (!strcmp(name, "link")
1649                             && textview_get_uri_range(textview, &iter, tag,
1650                                                       &start_iter, &end_iter))
1651                                 uri = textview_get_uri_from_range(textview,
1652                                                                   &iter, tag,
1653                                                                   &start_iter,
1654                                                                   &end_iter);
1655                         g_free(name);
1656
1657                         if (uri)
1658                                 break;
1659                 }
1660                 g_slist_free(tags);
1661         }
1662
1663         if (uri != textview->uri_hover) {
1664                 GdkWindow *window;
1665
1666                 if (textview->uri_hover)
1667                         gtk_text_buffer_remove_tag_by_name(buffer,
1668                                                            "link-hover",
1669                                                            &textview->uri_hover_start_iter,
1670                                                            &textview->uri_hover_end_iter);
1671
1672                 textview->uri_hover = uri;
1673                 if (uri) {
1674                         textview->uri_hover_start_iter = start_iter;
1675                         textview->uri_hover_end_iter = end_iter;
1676                 }
1677
1678                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
1679                                                   GTK_TEXT_WINDOW_TEXT);
1680                 gdk_window_set_cursor(window, uri ? hand_cursor : text_cursor);
1681
1682                 TEXTVIEW_STATUSBAR_POP(textview);
1683
1684                 if (uri) {
1685                         char *trimmed_uri;
1686
1687                         gtk_text_buffer_apply_tag_by_name(buffer,
1688                                                           "link-hover",
1689                                                           &start_iter,
1690                                                           &end_iter);
1691
1692                         trimmed_uri = trim_string(uri->uri, 60);
1693                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
1694                         g_free(trimmed_uri);
1695                 }
1696         }
1697 }
1698
1699 static gboolean textview_get_uri_range(TextView *textview,
1700                                        GtkTextIter *iter,
1701                                        GtkTextTag *tag,
1702                                        GtkTextIter *start_iter,
1703                                        GtkTextIter *end_iter)
1704 {
1705         GtkTextIter _start_iter, _end_iter;
1706
1707         _end_iter = *iter;
1708         if (!gtk_text_iter_forward_to_tag_toggle(&_end_iter, tag)) {
1709                 debug_print("Can't find end");
1710                 return FALSE;
1711         }
1712
1713         _start_iter = _end_iter;
1714         if (!gtk_text_iter_backward_to_tag_toggle(&_start_iter, tag)) {
1715                 debug_print("Can't find start.");
1716                 return FALSE;
1717         }
1718
1719         *start_iter = _start_iter;
1720         *end_iter = _end_iter;
1721
1722         return TRUE;
1723 }
1724
1725 static RemoteURI *textview_get_uri_from_range(TextView *textview,
1726                                               GtkTextIter *iter,
1727                                               GtkTextTag *tag,
1728                                               GtkTextIter *start_iter,
1729                                               GtkTextIter *end_iter)
1730 {
1731         gint start_pos, end_pos, cur_pos;
1732         RemoteURI *uri = NULL;
1733         GSList *cur;
1734
1735         start_pos = gtk_text_iter_get_offset(start_iter);
1736         end_pos = gtk_text_iter_get_offset(end_iter);
1737         cur_pos = gtk_text_iter_get_offset(iter);
1738
1739         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
1740                 RemoteURI *uri_ = (RemoteURI *)cur->data;
1741                 if (start_pos == uri_->start &&
1742                     end_pos ==  uri_->end) {
1743                         uri = uri_;
1744                         break;
1745                 } else if (start_pos == uri_->start ||
1746                            end_pos == uri_->end) {
1747                         /* in case of contiguous links, textview_get_uri_range
1748                          * returns a broader range (start of 1st link to end
1749                          * of last link).
1750                          * In that case, correct link is the one covering
1751                          * current iter.
1752                          */
1753                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
1754                                 uri = uri_;
1755                                 break;
1756                         }
1757                 }
1758         }
1759
1760         return uri;
1761 }
1762
1763 static RemoteURI *textview_get_uri(TextView *textview,
1764                                    GtkTextIter *iter,
1765                                    GtkTextTag *tag)
1766 {
1767         GtkTextIter start_iter, end_iter;
1768         RemoteURI *uri = NULL;
1769
1770         if (textview_get_uri_range(textview, iter, tag, &start_iter,
1771                                    &end_iter))
1772                 uri = textview_get_uri_from_range(textview, iter, tag,
1773                                                   &start_iter, &end_iter);
1774
1775         return uri;
1776 }
1777
1778 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
1779                                             GdkEvent *event, GtkTextIter *iter,
1780                                             TextView *textview)
1781 {
1782         GdkEventButton *bevent;
1783         RemoteURI *uri = NULL;
1784
1785         if (!event)
1786                 return FALSE;
1787
1788         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
1789                 && event->type != GDK_MOTION_NOTIFY)
1790                 return FALSE;
1791
1792         uri = textview_get_uri(textview, iter, tag);
1793         if (!uri)
1794                 return FALSE;
1795
1796         bevent = (GdkEventButton *) event;
1797
1798         /* doubleclick: open compose / add address / browser */
1799         if ((event->type == GDK_BUTTON_PRESS && bevent->button == 1) ||
1800                 bevent->button == 2 || bevent->button == 3) {
1801                 if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
1802                         if (bevent->button == 3) {
1803                                 g_object_set_data(
1804                                         G_OBJECT(textview->mail_popup_menu),
1805                                         "menu_button", uri);
1806                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
1807                                                NULL, NULL, NULL, NULL,
1808                                                bevent->button, bevent->time);
1809                         } else {
1810                                 PrefsAccount *account = NULL;
1811
1812                                 if (textview->messageview && textview->messageview->msginfo &&
1813                                     textview->messageview->msginfo->folder) {
1814                                         FolderItem   *folder_item;
1815
1816                                         folder_item = textview->messageview->msginfo->folder;
1817                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
1818                                                 account = account_find_from_id(folder_item->prefs->default_account);
1819                                 }
1820                                 compose_new(account, uri->uri + 7, NULL);
1821                         }
1822                         return TRUE;
1823                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
1824                         if (bevent->button == 1 &&
1825                             textview_uri_security_check(textview, uri) == TRUE)
1826                                         open_uri(uri->uri,
1827                                                  prefs_common.uri_cmd);
1828                         else if (bevent->button == 3) {
1829                                 g_object_set_data(
1830                                         G_OBJECT(textview->link_popup_menu),
1831                                         "menu_button", uri);
1832                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
1833                                                NULL, NULL, NULL, NULL,
1834                                                bevent->button, bevent->time);
1835                         }
1836                         return TRUE;
1837                 } else {
1838                         if (bevent->button == 3) {
1839                                 g_object_set_data(
1840                                         G_OBJECT(textview->file_popup_menu),
1841                                         "menu_button", uri);
1842                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
1843                                                NULL, NULL, NULL, NULL,
1844                                                bevent->button, bevent->time);
1845                                 return TRUE;
1846                         }
1847                 }
1848         }
1849
1850         return FALSE;
1851 }
1852
1853 /*!
1854  *\brief    Check to see if a web URL has been disguised as a different
1855  *          URL (possible with HTML email).
1856  *
1857  *\param    uri The uri to check
1858  *
1859  *\param    textview The TextView the URL is contained in
1860  *
1861  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
1862  *          it anyway, otherwise FALSE
1863  */
1864 static gboolean textview_uri_security_check(TextView *textview, RemoteURI *uri)
1865 {
1866         gchar *visible_str;
1867         gboolean retval = TRUE;
1868         GtkTextBuffer *buffer;
1869         GtkTextIter start, end;
1870
1871         if (is_uri_string(uri->uri) == FALSE)
1872                 return TRUE;
1873
1874         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1875
1876         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
1877         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
1878
1879         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
1880
1881         if (visible_str == NULL)
1882                 return TRUE;
1883
1884         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
1885                 gchar *uri_path;
1886                 gchar *visible_uri_path;
1887
1888                 uri_path = get_uri_path(uri->uri);
1889                 visible_uri_path = get_uri_path(visible_str);
1890                 if (strcmp(uri_path, visible_uri_path) != 0)
1891                         retval = FALSE;
1892         }
1893
1894         if (retval == FALSE) {
1895                 gchar *msg;
1896                 AlertValue aval;
1897
1898                 msg = g_strdup_printf(_("The real URL (%s) is different from\n"
1899                                         "the apparent URL (%s).\n"
1900                                         "\n"
1901                                         "Open it anyway?"),
1902                                       uri->uri, visible_str);
1903                 aval = alertpanel_full(_("Fake URL warning"), msg,
1904                                        GTK_STOCK_YES, GTK_STOCK_NO, NULL, FALSE,
1905                                        NULL, ALERT_WARNING, G_ALERTALTERNATE);
1906                 g_free(msg);
1907                 if (aval == G_ALERTDEFAULT)
1908                         retval = TRUE;
1909         }
1910
1911         g_free(visible_str);
1912
1913         return retval;
1914 }
1915
1916 static void textview_uri_list_remove_all(GSList *uri_list)
1917 {
1918         GSList *cur;
1919
1920         for (cur = uri_list; cur != NULL; cur = cur->next) {
1921                 if (cur->data) {
1922                         g_free(((RemoteURI *)cur->data)->uri);
1923                         g_free(((RemoteURI *)cur->data)->filename);
1924                         g_free(cur->data);
1925                 }
1926         }
1927
1928         g_slist_free(uri_list);
1929 }
1930
1931 static void open_uri_cb (TextView *textview, guint action, void *data)
1932 {
1933         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
1934                                            "menu_button");
1935         if (uri == NULL)
1936                 return;
1937
1938         if (textview_uri_security_check(textview, uri) == TRUE)
1939                 open_uri(uri->uri,
1940                          prefs_common.uri_cmd);
1941         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
1942                           NULL);
1943 }
1944
1945 static void save_file_cb (TextView *textview, guint action, void *data)
1946 {
1947         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
1948                                            "menu_button");
1949         gchar *filename = NULL;
1950         gchar *filepath = NULL;
1951         gchar *filedir = NULL;
1952         gchar *tmp_filename = NULL;
1953         if (uri == NULL)
1954                 return;
1955
1956         if (uri->filename == NULL)
1957                 return;
1958
1959         filename = g_strdup(uri->filename);
1960
1961         if (!g_utf8_validate(filename, -1, NULL)) {
1962                 gchar *tmp = conv_filename_to_utf8(filename);
1963                 g_free(filename);
1964                 filename = tmp;
1965         }
1966
1967         subst_for_filename(filename);
1968
1969         if (prefs_common.attach_save_dir)
1970                 filepath = g_strconcat(prefs_common.attach_save_dir,
1971                                        G_DIR_SEPARATOR_S, filename, NULL);
1972         else
1973                 filepath = g_strdup(filename);
1974
1975         g_free(filename);
1976
1977         filename = filesel_select_file_save(_("Save as"), filepath);
1978         if (!filename) {
1979                 g_free(filepath);
1980                 return;
1981         }
1982
1983         if (is_file_exist(filename)) {
1984                 AlertValue aval;
1985                 gchar *res;
1986
1987                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
1988                                       filename);
1989                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_OK,
1990                                   GTK_STOCK_CANCEL, NULL);
1991                 g_free(res);
1992                 if (G_ALERTDEFAULT != aval)
1993                         return;
1994         }
1995
1996         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
1997         copy_file(tmp_filename, filename, FALSE);
1998         g_free(tmp_filename);
1999
2000         filedir = g_path_get_dirname(filename);
2001         if (filedir && strcmp(filedir, ".")) {
2002                 if (prefs_common.attach_save_dir)
2003                         g_free(prefs_common.attach_save_dir);
2004                 prefs_common.attach_save_dir = g_strdup(filedir);
2005         }
2006
2007         g_free(filedir);
2008         g_free(filepath);
2009
2010         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2011                           NULL);
2012 }
2013
2014 static void copy_uri_cb (TextView *textview, guint action, void *data)
2015 {
2016         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2017                                            "menu_button");
2018         if (uri == NULL)
2019                 return;
2020
2021         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2022         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2023         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2024                           NULL);
2025 }
2026
2027 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2028 {
2029         gchar *fromname, *fromaddress;
2030         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2031                                            "menu_button");
2032         if (uri == NULL)
2033                 return;
2034
2035         /* extract url */
2036         fromaddress = g_strdup(uri->uri + 7);
2037         /* Hiroyuki: please put this function in utils.c! */
2038         fromname = procheader_get_fromname(fromaddress);
2039         extract_address(fromaddress);
2040         g_message("adding from textview %s <%s>", fromname, fromaddress);
2041         /* Add to address book - Match */
2042         addressbook_add_contact( fromname, fromaddress, NULL );
2043
2044         g_free(fromaddress);
2045         g_free(fromname);
2046 }
2047
2048 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2049 {
2050         PrefsAccount *account = NULL;
2051         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2052                                            "menu_button");
2053         if (uri == NULL)
2054                 return;
2055
2056         if (textview->messageview && textview->messageview->msginfo &&
2057             textview->messageview->msginfo->folder) {
2058                 FolderItem   *folder_item;
2059
2060                 folder_item = textview->messageview->msginfo->folder;
2061                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2062                         account = account_find_from_id(folder_item->prefs->default_account);
2063         }
2064         compose_new(account, uri->uri + 7, NULL);
2065 }
2066
2067 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2068 {
2069         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2070                                            "menu_button");
2071         if (uri == NULL)
2072                 return;
2073
2074         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2075         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2076         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2077                           NULL);
2078 }
2079