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., 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 #if HAVE_LIBCOMPFACE
  38 #  include <compface.h>
  39 #endif
  40
  41 #if HAVE_LIBCOMPFACE
  42 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  43 #endif
  44
  45 #include "main.h"
  46 #include "summaryview.h"
  47 #include "procheader.h"
  48 #include "prefs_common.h"
  49 #include "codeconv.h"
  50 #include "utils.h"
  51 #include "gtkutils.h"
  52 #include "procmime.h"
  53 #include "html.h"
  54 #include "enriched.h"
  55 #include "compose.h"
  56 #include "addressbook.h"
  57 #include "displayheader.h"
  58 #include "account.h"
  59 #include "mimeview.h"
  60 #include "alertpanel.h"
  61 #include "menu.h"
  62 #include "image_viewer.h"
  63 #include "filesel.h"
  64
  65 struct _RemoteURI
  66 {
  67         gchar *uri;
  68
  69         gchar *filename;
  70
  71         guint start;
  72         guint end;
  73 };
  74
  75 static GdkColor quote_colors[3] = {
  76         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  77         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  78         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  79 };
  80
  81 static GdkColor signature_color = {
  82         (gulong)0,
  83         (gushort)0x7fff,
  84         (gushort)0x7fff,
  85         (gushort)0x7fff
  86 };
  87
  88 static GdkColor uri_color = {
  89         (gulong)0,
  90         (gushort)0,
  91         (gushort)0,
  92         (gushort)0
  93 };
  94
  95 static GdkColor emphasis_color = {
  96         (gulong)0,
  97         (gushort)0,
  98         (gushort)0,
  99         (gushort)0xcfff
 100 };
 101
 102 #if 0
 103 static GdkColor error_color = {
 104         (gulong)0,
 105         (gushort)0xefff,
 106         (gushort)0,
 107         (gushort)0
 108 };
 109 #endif
 110
 111
 112 static GdkCursor *hand_cursor = NULL;
 113 static GdkCursor *text_cursor = NULL;
 114
 115 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 116 {       if (textview->messageview->statusbar)                               \
 117         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 118                            textview->messageview->statusbar_cid, str);      \
 119 }
 120
 121 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 122 {       if (textview->messageview->statusbar)                              \
 123         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 124                           textview->messageview->statusbar_cid);           \
 125 }
 126
 127 static void textview_show_ertf          (TextView       *textview,
 128                                          FILE           *fp,
 129                                          CodeConverter  *conv);
 130 static void textview_add_part           (TextView       *textview,
 131                                          MimeInfo       *mimeinfo);
 132 static void textview_add_parts          (TextView       *textview,
 133                                          MimeInfo       *mimeinfo);
 134 static void textview_write_body         (TextView       *textview,
 135                                          MimeInfo       *mimeinfo);
 136 static void textview_show_html          (TextView       *textview,
 137                                          FILE           *fp,
 138                                          CodeConverter  *conv);
 139
 140 static void textview_write_line         (TextView       *textview,
 141                                          const gchar    *str,
 142                                          CodeConverter  *conv);
 143 static void textview_write_link         (TextView       *textview,
 144                                          const gchar    *str,
 145                                          const gchar    *uri,
 146                                          CodeConverter  *conv);
 147
 148 static GPtrArray *textview_scan_header  (TextView       *textview,
 149                                          FILE           *fp);
 150 static void textview_show_header        (TextView       *textview,
 151                                          GPtrArray      *headers);
 152
 153 static gint textview_key_pressed                (GtkWidget      *widget,
 154                                                  GdkEventKey    *event,
 155                                                  TextView       *textview);
 156 static gboolean textview_motion_notify          (GtkWidget      *widget,
 157                                                  GdkEventMotion *motion,
 158                                                  TextView       *textview);
 159 static gboolean textview_leave_notify           (GtkWidget        *widget,
 160                                                  GdkEventCrossing *event,
 161                                                  TextView         *textview);
 162 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 163                                                  GdkEventVisibility *event,
 164                                                  TextView       *textview);
 165 static void textview_uri_update                 (TextView       *textview,
 166                                                  gint           x,
 167                                                  gint           y);
 168 static gboolean textview_get_uri_range          (TextView       *textview,
 169                                                  GtkTextIter    *iter,
 170                                                  GtkTextTag     *tag,
 171                                                  GtkTextIter    *start_iter,
 172                                                  GtkTextIter    *end_iter);
 173 static RemoteURI *textview_get_uri_from_range   (TextView       *textview,
 174                                                  GtkTextIter    *iter,
 175                                                  GtkTextTag     *tag,
 176                                                  GtkTextIter    *start_iter,
 177                                                  GtkTextIter    *end_iter);
 178 static RemoteURI *textview_get_uri              (TextView       *textview,
 179                                                  GtkTextIter    *iter,
 180                                                  GtkTextTag     *tag);
 181 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 182                                                  GObject        *obj,
 183                                                  GdkEvent       *event,
 184                                                  GtkTextIter    *iter,
 185                                                  TextView       *textview);
 186
 187 static void textview_smooth_scroll_do           (TextView       *textview,
 188                                                  gfloat          old_value,
 189                                                  gfloat          last_value,
 190                                                  gint            step);
 191 static void textview_smooth_scroll_one_line     (TextView       *textview,
 192                                                  gboolean        up);
 193 static gboolean textview_smooth_scroll_page     (TextView       *textview,
 194                                                  gboolean        up);
 195
 196 static gboolean textview_uri_security_check     (TextView       *textview,
 197                                                  RemoteURI      *uri);
 198 static void textview_uri_list_remove_all        (GSList         *uri_list);
 199
 200 static void open_uri_cb                         (TextView       *textview,
 201                                                  guint           action,
 202                                                  void           *data);
 203 static void copy_uri_cb                         (TextView       *textview,
 204                                                  guint           action,
 205                                                  void           *data);
 206 static void add_uri_to_addrbook_cb              (TextView       *textview,
 207                                                  guint           action,
 208                                                  void           *data);
 209 static void mail_to_uri_cb                      (TextView       *textview,
 210                                                  guint           action,
 211                                                  void           *data);
 212 static void copy_mail_to_uri_cb                 (TextView       *textview,
 213                                                  guint           action,
 214                                                  void           *data);
 215 static void save_file_cb                        (TextView       *textview,
 216                                                  guint           action,
 217                                                  void           *data);
 218 static void open_image_cb                       (TextView       *textview,
 219                                                  guint           action,
 220                                                  void           *data);
 221
 222 static GtkItemFactoryEntry textview_link_popup_entries[] =
 223 {
 224         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 225         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 226 };
 227
 228 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 229 {
 230         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 231         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 232         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 233 };
 234
 235 static GtkItemFactoryEntry textview_file_popup_entries[] =
 236 {
 237         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 238         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 239 };
 240
 241 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 242 {
 243 #if HAVE_LIBCOMPFACE
 244         if (textview->image) {
 245                 gint x, y;
 246                 gtk_text_view_buffer_to_window_coords(
 247                         GTK_TEXT_VIEW(textview->text),
 248                         GTK_TEXT_WINDOW_RIGHT, 5, 5, &x, &y);
 249                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 250                         textview->image, 5, y);
 251         }
 252 #endif
 253 }
 254
 255 TextView *textview_create(void)
 256 {
 257         TextView *textview;
 258         GtkWidget *vbox;
 259         GtkWidget *scrolledwin;
 260         GtkWidget *text;
 261         GtkTextBuffer *buffer;
 262         GtkClipboard *clipboard;
 263         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 264         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 265         GtkAdjustment *adj;
 266         gint n_entries;
 267
 268         debug_print("Creating text view...\n");
 269         textview = g_new0(TextView, 1);
 270
 271         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 272         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 273                                        GTK_POLICY_AUTOMATIC,
 274                                        GTK_POLICY_AUTOMATIC);
 275         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 276                                             GTK_SHADOW_IN);
 277         gtk_widget_set_size_request
 278                 (scrolledwin, prefs_common.mainview_width, -1);
 279
 280         /* create GtkSText widgets for single-byte and multi-byte character */
 281         text = gtk_text_view_new();
 282         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 283         gtk_widget_show(text);
 284         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 285         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 286         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 287         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 288         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 289
 290         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 291         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 292         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 293
 294         gtk_widget_ensure_style(text);
 295
 296         gtk_widget_ref(scrolledwin);
 297
 298         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 299
 300         g_signal_connect(G_OBJECT(text), "key-press-event",
 301                          G_CALLBACK(textview_key_pressed), textview);
 302         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 303                          G_CALLBACK(textview_motion_notify), textview);
 304         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 305                          G_CALLBACK(textview_leave_notify), textview);
 306         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 307                          G_CALLBACK(textview_visibility_notify), textview);
 308         adj = gtk_scrolled_window_get_vadjustment(
 309                 GTK_SCROLLED_WINDOW(scrolledwin));
 310         g_signal_connect(G_OBJECT(adj), "value-changed",
 311                          G_CALLBACK(scrolled_cb), textview);
 312
 313         gtk_widget_show(scrolledwin);
 314
 315         vbox = gtk_vbox_new(FALSE, 0);
 316         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 317
 318         gtk_widget_show(vbox);
 319
 320         n_entries = sizeof(textview_link_popup_entries) /
 321                 sizeof(textview_link_popup_entries[0]);
 322         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 323                                       "<UriPopupMenu>", &link_popupfactory,
 324                                       textview);
 325
 326         n_entries = sizeof(textview_mail_popup_entries) /
 327                 sizeof(textview_mail_popup_entries[0]);
 328         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 329                                       "<UriPopupMenu>", &mail_popupfactory,
 330                                       textview);
 331
 332         n_entries = sizeof(textview_file_popup_entries) /
 333                 sizeof(textview_file_popup_entries[0]);
 334         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 335                                       "<FilePopupMenu>", &file_popupfactory,
 336                                       textview);
 337
 338         textview->vbox               = vbox;
 339         textview->scrolledwin        = scrolledwin;
 340         textview->text               = text;
 341         textview->uri_list           = NULL;
 342         textview->body_pos           = 0;
 343         textview->show_all_headers   = FALSE;
 344         textview->last_buttonpress   = GDK_NOTHING;
 345         textview->link_popup_menu    = link_popupmenu;
 346         textview->link_popup_factory = link_popupfactory;
 347         textview->mail_popup_menu    = mail_popupmenu;
 348         textview->mail_popup_factory = mail_popupfactory;
 349         textview->file_popup_menu    = file_popupmenu;
 350         textview->file_popup_factory = file_popupfactory;
 351
 352         return textview;
 353 }
 354
 355 static void textview_create_tags(GtkTextView *text, TextView *textview)
 356 {
 357         GtkTextBuffer *buffer;
 358         GtkTextTag *tag;
 359         static PangoFontDescription *font_desc, *bold_font_desc;
 360
 361         if (!font_desc)
 362                 font_desc = pango_font_description_from_string
 363                         (NORMAL_FONT);
 364
 365         if (!bold_font_desc) {
 366                 bold_font_desc = pango_font_description_from_string
 367                         (NORMAL_FONT);
 368                 pango_font_description_set_weight
 369                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 370         }
 371
 372         buffer = gtk_text_view_get_buffer(text);
 373
 374         gtk_text_buffer_create_tag(buffer, "header",
 375                                    "pixels-above-lines", 0,
 376                                    "pixels-above-lines-set", TRUE,
 377                                    "pixels-below-lines", 0,
 378                                    "pixels-below-lines-set", TRUE,
 379                                    "font-desc", font_desc,
 380                                    "left-margin", 0,
 381                                    "left-margin-set", TRUE,
 382                                    NULL);
 383         gtk_text_buffer_create_tag(buffer, "header_title",
 384                                    "font-desc", bold_font_desc,
 385                                    NULL);
 386         gtk_text_buffer_create_tag(buffer, "quote0",
 387                                    "foreground-gdk", &quote_colors[0],
 388                                    NULL);
 389         gtk_text_buffer_create_tag(buffer, "quote1",
 390                                    "foreground-gdk", &quote_colors[1],
 391                                    NULL);
 392         gtk_text_buffer_create_tag(buffer, "quote2",
 393                                    "foreground-gdk", &quote_colors[2],
 394                                    NULL);
 395         gtk_text_buffer_create_tag(buffer, "emphasis",
 396                                    "foreground-gdk", &emphasis_color,
 397                                    NULL);
 398         gtk_text_buffer_create_tag(buffer, "signature",
 399                                    "foreground-gdk", &signature_color,
 400                                    NULL);
 401         tag = gtk_text_buffer_create_tag(buffer, "link",
 402                                          "foreground-gdk", &uri_color,
 403                                          NULL);
 404         gtk_text_buffer_create_tag(buffer, "link-hover",
 405                                    "foreground-gdk", &uri_color,
 406                                    "underline", PANGO_UNDERLINE_SINGLE,
 407                                    NULL);
 408         g_signal_connect(G_OBJECT(tag), "event",
 409                          G_CALLBACK(textview_uri_button_pressed), textview);
 410  }
 411
 412 void textview_init(TextView *textview)
 413 {
 414         if (!hand_cursor)
 415                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 416         if (!text_cursor)
 417                 text_cursor = gdk_cursor_new(GDK_XTERM);
 418
 419         textview_reflect_prefs(textview);
 420         textview_set_all_headers(textview, FALSE);
 421         textview_set_font(textview, NULL);
 422         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 423 }
 424
 425 #define CHANGE_TAG_COLOR(tagname, color) { \
 426         tag = gtk_text_tag_table_lookup(tags, tagname); \
 427         if (tag) \
 428                 g_object_set(G_OBJECT(tag), "foreground-gdk", color, NULL); \
 429 }
 430
 431 static void textview_update_message_colors(TextView *textview)
 432 {
 433         GdkColor black = {0, 0, 0, 0};
 434         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 435         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 436
 437         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 438         GtkTextTag *tag = NULL;
 439
 440         if (prefs_common.enable_color) {
 441                 /* grab the quote colors, converting from an int to a GdkColor */
 442                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 443                                                &quote_colors[0]);
 444                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 445                                                &quote_colors[1]);
 446                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 447                                                &quote_colors[2]);
 448                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 449                                                &uri_color);
 450                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 451                                                &signature_color);
 452                 emphasis_color = colored_emphasis;
 453         } else {
 454                 quote_colors[0] = quote_colors[1] = quote_colors[2] =
 455                         uri_color = emphasis_color = signature_color = black;
 456         }
 457         CHANGE_TAG_COLOR("quote0", &quote_colors[0]);
 458         CHANGE_TAG_COLOR("quote1", &quote_colors[1]);
 459         CHANGE_TAG_COLOR("quote2", &quote_colors[2]);
 460         CHANGE_TAG_COLOR("emphasis", &emphasis_color);
 461         CHANGE_TAG_COLOR("signature", &signature_color);
 462         CHANGE_TAG_COLOR("link", &uri_color);
 463         CHANGE_TAG_COLOR("link-hover", &uri_color);
 464
 465 }
 466 #undef CHANGE_TAG_COLOR
 467
 468 void textview_reflect_prefs(TextView *textview)
 469 {
 470         textview_set_font(textview, NULL);
 471         textview_update_message_colors(textview);
 472         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 473                                          prefs_common.textview_cursor_visible);
 474 }
 475
 476 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 477                            const gchar *file)
 478 {
 479         textview_clear(textview);
 480
 481         textview_add_parts(textview, mimeinfo);
 482
 483         textview_set_position(textview, 0);
 484 }
 485
 486 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 487 {
 488         g_return_if_fail(mimeinfo != NULL);
 489         g_return_if_fail(fp != NULL);
 490
 491         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 492             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 493                 textview_clear(textview);
 494                 textview_add_parts(textview, mimeinfo);
 495                 return;
 496         }
 497
 498         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 499                 perror("fseek");
 500
 501         textview_clear(textview);
 502
 503         if (mimeinfo->type == MIMETYPE_MULTIPART)
 504                 textview_add_parts(textview, mimeinfo);
 505         else
 506                 textview_write_body(textview, mimeinfo);
 507
 508 }
 509
 510 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 511 {
 512         GtkTextView *text;
 513         GtkTextBuffer *buffer;
 514         GtkTextIter iter, start_iter;
 515         gchar buf[BUFFSIZE];
 516         GPtrArray *headers = NULL;
 517         const gchar *name;
 518         gchar *content_type;
 519         gint charcount;
 520
 521         g_return_if_fail(mimeinfo != NULL);
 522         text = GTK_TEXT_VIEW(textview->text);
 523         buffer = gtk_text_view_get_buffer(text);
 524         charcount = gtk_text_buffer_get_char_count(buffer);
 525         gtk_text_buffer_get_end_iter(buffer, &iter);
 526
 527         if (mimeinfo->type == MIMETYPE_MULTIPART) return;
 528
 529         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 530                 FILE *fp;
 531
 532                 fp = g_fopen(mimeinfo->data.filename, "rb");
 533                 fseek(fp, mimeinfo->offset, SEEK_SET);
 534                 headers = textview_scan_header(textview, fp);
 535                 if (headers) {
 536                         if (charcount > 0)
 537                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 538                         textview_show_header(textview, headers);
 539                         procheader_header_array_destroy(headers);
 540                 }
 541                 fclose(fp);
 542                 return;
 543         }
 544
 545         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 546         content_type = procmime_get_content_type_str(mimeinfo->type,
 547                                                      mimeinfo->subtype);
 548         if (name == NULL)
 549                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 550         if (name != NULL)
 551                 g_snprintf(buf, sizeof(buf), "\n[%s  %s (%d bytes)]\n",
 552                            name, content_type, mimeinfo->length);
 553         else
 554                 g_snprintf(buf, sizeof(buf), "\n[%s (%d bytes)]\n",
 555                            content_type, mimeinfo->length);
 556
 557         g_free(content_type);
 558
 559         if (mimeinfo->type != MIMETYPE_TEXT) {
 560                 gtk_text_buffer_insert(buffer, &iter, buf, -1);
 561                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 562                     prefs_common.inline_img ) {
 563                         GdkPixbuf *pixbuf;
 564                         GError *error = NULL;
 565                         gchar *filename;
 566                         RemoteURI *uri;
 567                         gchar *uri_str;
 568                         FILE *fp;
 569
 570                         fp = g_fopen(mimeinfo->data.filename, "rb");
 571                         fseek(fp, mimeinfo->offset, SEEK_SET);
 572
 573                         filename = procmime_get_tmp_file_name(mimeinfo);
 574                         if (procmime_get_part(filename, mimeinfo) < 0) {
 575                                 g_warning("Can't get the image file.");
 576                                 g_free(filename);
 577                                 return;
 578                         }
 579
 580                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 581                         if (error != NULL) {
 582                                 g_warning("%s\n", error->message);
 583                                 g_error_free(error);
 584                         }
 585                         if (!pixbuf) {
 586                                 g_warning("Can't load the image.");
 587                                 g_free(filename);
 588                                 return;
 589                         }
 590
 591                         if (prefs_common.resize_img) {
 592                                 int new_width, new_height;
 593                                 GdkPixbuf *scaled;
 594                                 image_viewer_get_resized_size(gdk_pixbuf_get_width(pixbuf),
 595                                                  gdk_pixbuf_get_height(pixbuf),
 596                                                  textview->scrolledwin->allocation.width - 100,
 597                                                  gdk_pixbuf_get_height(pixbuf),
 598                                                  &new_width, &new_height);
 599                                 scaled = gdk_pixbuf_scale_simple
 600                                         (pixbuf, new_width, new_height, GDK_INTERP_BILINEAR);
 601
 602                                 g_object_unref(pixbuf);
 603                                 pixbuf = scaled;
 604                         }
 605
 606                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 607                         if (uri_str) {
 608                                 uri = g_new(RemoteURI, 1);
 609                                 uri->uri = uri_str;
 610                                 uri->start = gtk_text_iter_get_offset(&iter);
 611
 612                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 613
 614                                 uri->end = uri->start + 1;
 615                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 616                                 textview->uri_list =
 617                                         g_slist_append(textview->uri_list, uri);
 618
 619                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 620                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 621                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 622                                                 &start_iter, &iter);
 623                         } else {
 624                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 625                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 626                         }
 627
 628                         g_object_unref(pixbuf);
 629                         g_free(filename);
 630                 }
 631         } else if (mimeinfo->disposition != DISPOSITIONTYPE_ATTACHMENT) {
 632                 if (prefs_common.display_header && (charcount > 0))
 633                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 634
 635                 textview_write_body(textview, mimeinfo);
 636         }
 637 }
 638
 639 static void recursive_add_parts(TextView *textview, GNode *node)
 640 {
 641         GNode * iter;
 642         MimeInfo *mimeinfo;
 643
 644         mimeinfo = (MimeInfo *) node->data;
 645
 646         textview_add_part(textview, mimeinfo);
 647
 648         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 649             (mimeinfo->type != MIMETYPE_MESSAGE))
 650                 return;
 651
 652         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 653                 GNode * prefered_body;
 654                 int prefered_score;
 655
 656                 /*
 657                   text/plain : score 3
 658                   text/ *    : score 2
 659                   other      : score 1
 660                 */
 661                 prefered_body = NULL;
 662                 prefered_score = 0;
 663
 664                 for (iter = g_node_first_child(node) ; iter != NULL ;
 665                      iter = g_node_next_sibling(iter)) {
 666                         int score;
 667                         MimeInfo * submime;
 668
 669                         score = 1;
 670                         submime = (MimeInfo *) iter->data;
 671                         if (submime->type == MIMETYPE_TEXT)
 672                                 score = 2;
 673
 674                         if (submime->subtype != NULL) {
 675                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 676                                         score = 3;
 677                         }
 678
 679                         if (score > prefered_score) {
 680                                 prefered_score = score;
 681                                 prefered_body = iter;
 682                         }
 683                 }
 684
 685                 if (prefered_body != NULL) {
 686                         recursive_add_parts(textview, prefered_body);
 687                 }
 688         }
 689         else {
 690                 for (iter = g_node_first_child(node) ; iter != NULL ;
 691                      iter = g_node_next_sibling(iter)) {
 692                         recursive_add_parts(textview, iter);
 693                 }
 694         }
 695 }
 696
 697 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 698 {
 699         g_return_if_fail(mimeinfo != NULL);
 700
 701         recursive_add_parts(textview, mimeinfo->node);
 702 }
 703
 704 #define TEXT_INSERT(str) \
 705         gtk_text_buffer_insert(buffer, &iter, str, -1)
 706
 707 void textview_show_error(TextView *textview)
 708 {
 709         GtkTextView *text;
 710         GtkTextBuffer *buffer;
 711         GtkTextIter iter;
 712
 713         textview_set_font(textview, NULL);
 714         textview_clear(textview);
 715
 716         text = GTK_TEXT_VIEW(textview->text);
 717         buffer = gtk_text_view_get_buffer(text);
 718         gtk_text_buffer_get_start_iter(buffer, &iter);
 719
 720         TEXT_INSERT(_("This message can't be displayed.\n"));
 721
 722 }
 723
 724 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 725 {
 726         GtkTextView *text;
 727         GtkTextBuffer *buffer;
 728         GtkTextIter iter;
 729
 730         if (!partinfo) return;
 731
 732         textview_set_font(textview, NULL);
 733         textview_clear(textview);
 734
 735         text = GTK_TEXT_VIEW(textview->text);
 736         buffer = gtk_text_view_get_buffer(text);
 737         gtk_text_buffer_get_start_iter(buffer, &iter);
 738
 739         TEXT_INSERT(_("The following can be performed on this part by "));
 740         TEXT_INSERT(_("right-clicking the icon or list item:\n"));
 741
 742         TEXT_INSERT(_("    To save select 'Save as...' (Shortcut key: 'y')\n"));
 743         TEXT_INSERT(_("    To display as text select 'Display as text' "));
 744         TEXT_INSERT(_("(Shortcut key: 't')\n"));
 745         TEXT_INSERT(_("    To open with an external program select 'Open' "));
 746         TEXT_INSERT(_("(Shortcut key: 'l'),\n"));
 747         TEXT_INSERT(_("    (alternately double-click, or click the middle "));
 748         TEXT_INSERT(_("mouse button),\n"));
 749         TEXT_INSERT(_("    or 'Open with...' (Shortcut key: 'o')\n"));
 750
 751 }
 752
 753 #undef TEXT_INSERT
 754
 755 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 756 {
 757         FILE *tmpfp;
 758         gchar buf[BUFFSIZE];
 759         CodeConverter *conv;
 760         const gchar *charset;
 761
 762         if (textview->messageview->forced_charset)
 763                 charset = textview->messageview->forced_charset;
 764         else
 765                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 766
 767         textview_set_font(textview, charset);
 768
 769         conv = conv_code_converter_new(charset);
 770
 771         procmime_force_encoding(textview->messageview->forced_encoding);
 772
 773         textview->is_in_signature = FALSE;
 774
 775         procmime_decode_content(mimeinfo);
 776
 777         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 778             prefs_common.render_html) {
 779                 gchar *filename;
 780
 781                 filename = procmime_get_tmp_file_name(mimeinfo);
 782                 if (procmime_get_part(filename, mimeinfo) == 0) {
 783                         tmpfp = g_fopen(filename, "rb");
 784                         textview_show_html(textview, tmpfp, conv);
 785                         fclose(tmpfp);
 786                         g_unlink(filename);
 787                 }
 788                 g_free(filename);
 789         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 790                 gchar *filename;
 791
 792                 filename = procmime_get_tmp_file_name(mimeinfo);
 793                 if (procmime_get_part(filename, mimeinfo) == 0) {
 794                         tmpfp = g_fopen(filename, "rb");
 795                         textview_show_ertf(textview, tmpfp, conv);
 796                         fclose(tmpfp);
 797                         g_unlink(filename);
 798                 }
 799                 g_free(filename);
 800         } else {
 801                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 802                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 803                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 804                 while ((fgets(buf, sizeof(buf), tmpfp) != NULL) &&
 805                        (ftell(tmpfp) <= mimeinfo->offset + mimeinfo->length))
 806                         textview_write_line(textview, buf, conv);
 807                 fclose(tmpfp);
 808         }
 809
 810         conv_code_converter_destroy(conv);
 811         procmime_force_encoding(0);
 812 }
 813
 814 static void textview_show_html(TextView *textview, FILE *fp,
 815                                CodeConverter *conv)
 816 {
 817         HTMLParser *parser;
 818         gchar *str;
 819
 820         parser = html_parser_new(fp, conv);
 821         g_return_if_fail(parser != NULL);
 822
 823         while ((str = html_parse(parser)) != NULL) {
 824                 if (parser->state == HTML_HREF) {
 825                         /* first time : get and copy the URL */
 826                         if (parser->href == NULL) {
 827                                 /* ALF - the sylpheed html parser returns an empty string,
 828                                  * if still inside an <a>, but already parsed past HREF */
 829                                 str = strtok(str, " ");
 830                                 if (str) {
 831                                         parser->href = g_strdup(str);
 832                                         /* the URL may (or not) be followed by the
 833                                          * referenced text */
 834                                         str = strtok(NULL, "");
 835                                 }
 836                         }
 837                         if (str != NULL)
 838                                 textview_write_link(textview, str, parser->href, NULL);
 839                 } else
 840                         textview_write_line(textview, str, NULL);
 841         }
 842         textview_write_line(textview, "\n", NULL);
 843         html_parser_destroy(parser);
 844 }
 845
 846 static void textview_show_ertf(TextView *textview, FILE *fp,
 847                                CodeConverter *conv)
 848 {
 849         ERTFParser *parser;
 850         gchar *str;
 851
 852         parser = ertf_parser_new(fp, conv);
 853         g_return_if_fail(parser != NULL);
 854
 855         while ((str = ertf_parse(parser)) != NULL) {
 856                 textview_write_line(textview, str, NULL);
 857         }
 858
 859         ertf_parser_destroy(parser);
 860 }
 861
 862 #define ADD_TXT_POS(bp_, ep_, pti_) \
 863         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
 864                 last = last->next; \
 865                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
 866                 last->next = NULL; \
 867         } else { \
 868                 g_warning("alloc error scanning URIs\n"); \
 869                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
 870                                                          linebuf, -1, \
 871                                                          fg_tag, NULL); \
 872                 return; \
 873         }
 874
 875 /* textview_make_clickable_parts() - colorizes clickable parts */
 876 static void textview_make_clickable_parts(TextView *textview,
 877                                           const gchar *fg_tag,
 878                                           const gchar *uri_tag,
 879                                           const gchar *linebuf)
 880 {
 881         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
 882         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 883         GtkTextIter iter;
 884         gchar *mybuf = g_strdup(linebuf);
 885
 886         /* parse table - in order of priority */
 887         struct table {
 888                 const gchar *needle; /* token */
 889
 890                 /* token search function */
 891                 gchar    *(*search)     (const gchar *haystack,
 892                                          const gchar *needle);
 893                 /* part parsing function */
 894                 gboolean  (*parse)      (const gchar *start,
 895                                          const gchar *scanpos,
 896                                          const gchar **bp_,
 897                                          const gchar **ep_);
 898                 /* part to URI function */
 899                 gchar    *(*build_uri)  (const gchar *bp,
 900                                          const gchar *ep);
 901         };
 902
 903         static struct table parser[] = {
 904                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
 905                 {"https://", strcasestr, get_uri_part,   make_uri_string},
 906                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
 907                 {"www.",     strcasestr, get_uri_part,   make_http_string},
 908                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
 909                 {"@",        strcasestr, get_email_part, make_email_string}
 910         };
 911         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
 912
 913         gint  n;
 914         const gchar *walk, *bp, *ep;
 915
 916         struct txtpos {
 917                 const gchar     *bp, *ep;       /* text position */
 918                 gint             pti;           /* index in parse table */
 919                 struct txtpos   *next;          /* next */
 920         } head = {NULL, NULL, 0,  NULL}, *last = &head;
 921
 922         if (!g_utf8_validate(linebuf, -1, NULL)) {
 923                 mybuf = g_malloc(strlen(linebuf)*2 +1);
 924                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
 925         }
 926
 927         gtk_text_buffer_get_end_iter(buffer, &iter);
 928
 929         /* parse for clickable parts, and build a list of begin and end positions  */
 930         for (walk = mybuf, n = 0;;) {
 931                 gint last_index = PARSE_ELEMS;
 932                 gchar *scanpos = NULL;
 933
 934                 /* FIXME: this looks phony. scanning for anything in the parse table */
 935                 for (n = 0; n < PARSE_ELEMS; n++) {
 936                         gchar *tmp;
 937
 938                         tmp = parser[n].search(walk, parser[n].needle);
 939                         if (tmp) {
 940                                 if (scanpos == NULL || tmp < scanpos) {
 941                                         scanpos = tmp;
 942                                         last_index = n;
 943                                 }
 944                         }
 945                 }
 946
 947                 if (scanpos) {
 948                         /* check if URI can be parsed */
 949                         if (parser[last_index].parse(walk, scanpos, &bp, &ep)
 950                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
 951                                         ADD_TXT_POS(bp, ep, last_index);
 952                                         walk = ep;
 953                         } else
 954                                 walk = scanpos +
 955                                         strlen(parser[last_index].needle);
 956                 } else
 957                         break;
 958         }
 959
 960         /* colorize this line */
 961         if (head.next) {
 962                 const gchar *normal_text = mybuf;
 963
 964                 /* insert URIs */
 965                 for (last = head.next; last != NULL;
 966                      normal_text = last->ep, last = last->next) {
 967                         RemoteURI *uri;
 968                         uri = g_new(RemoteURI, 1);
 969                         if (last->bp - normal_text > 0)
 970                                 gtk_text_buffer_insert_with_tags_by_name
 971                                         (buffer, &iter,
 972                                          normal_text,
 973                                          last->bp - normal_text,
 974                                          fg_tag, NULL);
 975                         uri->uri = parser[last->pti].build_uri(last->bp,
 976                                                                last->ep);
 977                         uri->start = gtk_text_iter_get_offset(&iter);
 978                         gtk_text_buffer_insert_with_tags_by_name
 979                                 (buffer, &iter, last->bp, last->ep - last->bp,
 980                                  uri_tag, fg_tag, NULL);
 981                         uri->end = gtk_text_iter_get_offset(&iter);
 982                         uri->filename = NULL;
 983                         textview->uri_list =
 984                                 g_slist_append(textview->uri_list, uri);
 985                 }
 986
 987                 if (*normal_text)
 988                         gtk_text_buffer_insert_with_tags_by_name
 989                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
 990         } else {
 991                 gtk_text_buffer_insert_with_tags_by_name
 992                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
 993         }
 994         g_free(mybuf);
 995 }
 996
 997 #undef ADD_TXT_POS
 998
 999 static void textview_write_line(TextView *textview, const gchar *str,
1000                                 CodeConverter *conv)
1001 {
1002         GtkTextView *text;
1003         GtkTextBuffer *buffer;
1004         GtkTextIter iter;
1005         gchar buf[BUFFSIZE];
1006         gchar *fg_color;
1007         gint quotelevel = -1;
1008         gchar quote_tag_str[10];
1009
1010         text = GTK_TEXT_VIEW(textview->text);
1011         buffer = gtk_text_view_get_buffer(text);
1012         gtk_text_buffer_get_end_iter(buffer, &iter);
1013
1014         if (!conv)
1015                 strncpy2(buf, str, sizeof(buf));
1016         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1017                 conv_localetodisp(buf, sizeof(buf), str);
1018
1019         strcrchomp(buf);
1020         //if (prefs_common.conv_mb_alnum) conv_mb_alnum(buf);
1021         fg_color = NULL;
1022
1023         /* change color of quotation
1024            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1025            Up to 3 levels of quotations are detected, and each
1026            level is colored using a different color. */
1027         if (prefs_common.enable_color
1028             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1029                 quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1030
1031                 /* set up the correct foreground color */
1032                 if (quotelevel > 2) {
1033                         /* recycle colors */
1034                         if (prefs_common.recycle_quote_colors)
1035                                 quotelevel %= 3;
1036                         else
1037                                 quotelevel = 2;
1038                 }
1039         }
1040
1041         if (quotelevel == -1)
1042                 fg_color = NULL;
1043         else {
1044                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1045                            "quote%d", quotelevel);
1046                 fg_color = quote_tag_str;
1047         }
1048
1049         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1050                 fg_color = "signature";
1051                 textview->is_in_signature = TRUE;
1052         }
1053
1054         textview_make_clickable_parts(textview, fg_color, "link", buf);
1055 }
1056
1057 void textview_write_link(TextView *textview, const gchar *str,
1058                          const gchar *uri, CodeConverter *conv)
1059 {
1060         GdkColor *link_color = NULL;
1061         GtkTextView *text;
1062         GtkTextBuffer *buffer;
1063         GtkTextIter iter;
1064         gchar buf[BUFFSIZE];
1065         gchar *bufp;
1066         RemoteURI *r_uri;
1067
1068         if (!str || *str == '\0')
1069                 return;
1070         if (!uri)
1071                 return;
1072
1073         text = GTK_TEXT_VIEW(textview->text);
1074         buffer = gtk_text_view_get_buffer(text);
1075         gtk_text_buffer_get_end_iter(buffer, &iter);
1076
1077         if (!conv)
1078                 strncpy2(buf, str, sizeof(buf));
1079         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1080                 conv_utf8todisp(buf, sizeof(buf), str);
1081
1082         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1083                 return;
1084
1085         strcrchomp(buf);
1086
1087         gtk_text_buffer_get_end_iter(buffer, &iter);
1088         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1089                 gunichar ch;
1090
1091                 ch = g_utf8_get_char(bufp);
1092                 if (!g_unichar_isspace(ch))
1093                         break;
1094         }
1095         if (bufp > buf)
1096                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1097
1098         if (prefs_common.enable_color) {
1099                 link_color = &uri_color;
1100         }
1101         r_uri = g_new(RemoteURI, 1);
1102         r_uri->uri = g_strdup(uri);
1103         r_uri->start = gtk_text_iter_get_offset(&iter);
1104         gtk_text_buffer_insert_with_tags_by_name
1105                 (buffer, &iter, bufp, -1, "link", NULL);
1106         r_uri->end = gtk_text_iter_get_offset(&iter);
1107         r_uri->filename = NULL;
1108         textview->uri_list = g_slist_append(textview->uri_list, r_uri);
1109 }
1110
1111 void textview_clear(TextView *textview)
1112 {
1113         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1114         GtkTextBuffer *buffer;
1115
1116         buffer = gtk_text_view_get_buffer(text);
1117         gtk_text_buffer_set_text(buffer, "", -1);
1118
1119         TEXTVIEW_STATUSBAR_POP(textview);
1120         textview_uri_list_remove_all(textview->uri_list);
1121         textview->uri_list = NULL;
1122
1123         textview->body_pos = 0;
1124 }
1125
1126 void textview_destroy(TextView *textview)
1127 {
1128         textview_uri_list_remove_all(textview->uri_list);
1129         textview->uri_list = NULL;
1130
1131         g_free(textview);
1132 }
1133
1134 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1135 {
1136         textview->show_all_headers = all_headers;
1137 }
1138
1139 #define CHANGE_TAG_FONT(tagname, font) { \
1140         tag = gtk_text_tag_table_lookup(tags, tagname); \
1141         if (tag) \
1142                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1143 }
1144
1145 void textview_set_font(TextView *textview, const gchar *codeset)
1146 {
1147         GtkTextTag *tag;
1148         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1149         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1150
1151         if (NORMAL_FONT) {
1152                 PangoFontDescription *font_desc, *bold_font_desc;
1153                 font_desc = pango_font_description_from_string
1154                                                 (NORMAL_FONT);
1155                 bold_font_desc = pango_font_description_from_string
1156                                                 (NORMAL_FONT);
1157                 if (font_desc) {
1158                         gtk_widget_modify_font(textview->text, font_desc);
1159                         CHANGE_TAG_FONT("header", font_desc);
1160                         pango_font_description_free(font_desc);
1161                 }
1162                 if (bold_font_desc) {
1163                         pango_font_description_set_weight
1164                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1165                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1166                         pango_font_description_free(bold_font_desc);
1167                 }
1168         }
1169
1170         if (prefs_common.textfont) {
1171                 PangoFontDescription *font_desc;
1172
1173                 font_desc = pango_font_description_from_string
1174                                                 (prefs_common.textfont);
1175                 if (font_desc) {
1176                         gtk_widget_modify_font(textview->text, font_desc);
1177                         pango_font_description_free(font_desc);
1178                 }
1179         }
1180         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1181                                              prefs_common.line_space / 2);
1182         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1183                                              prefs_common.line_space / 2);
1184 }
1185
1186 void textview_set_text(TextView *textview, const gchar *text)
1187 {
1188         GtkTextView *view;
1189         GtkTextBuffer *buffer;
1190
1191         g_return_if_fail(textview != NULL);
1192         g_return_if_fail(text != NULL);
1193
1194         textview_clear(textview);
1195
1196         view = GTK_TEXT_VIEW(textview->text);
1197         buffer = gtk_text_view_get_buffer(view);
1198         gtk_text_buffer_set_text(buffer, text, strlen(text));
1199 }
1200
1201 enum
1202 {
1203         H_DATE          = 0,
1204         H_FROM          = 1,
1205         H_TO            = 2,
1206         H_NEWSGROUPS    = 3,
1207         H_SUBJECT       = 4,
1208         H_CC            = 5,
1209         H_REPLY_TO      = 6,
1210         H_FOLLOWUP_TO   = 7,
1211         H_X_MAILER      = 8,
1212         H_X_NEWSREADER  = 9,
1213         H_USER_AGENT    = 10,
1214         H_ORGANIZATION  = 11,
1215 };
1216
1217 void textview_set_position(TextView *textview, gint pos)
1218 {
1219         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1220         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1221         GtkTextIter iter;
1222
1223         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
1224         gtk_text_buffer_place_cursor(buffer, &iter);
1225         gtk_text_view_scroll_to_iter(text, &iter, 0.0, FALSE, 0.0, 0.0);
1226 }
1227
1228 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1229 {
1230         gchar buf[BUFFSIZE];
1231         GPtrArray *headers, *sorted_headers;
1232         GSList *disphdr_list;
1233         Header *header;
1234         gint i;
1235
1236         g_return_val_if_fail(fp != NULL, NULL);
1237
1238         if (textview->show_all_headers)
1239                 return procheader_get_header_array_asis(fp);
1240
1241         if (!prefs_common.display_header) {
1242                 while (fgets(buf, sizeof(buf), fp) != NULL)
1243                         if (buf[0] == '\r' || buf[0] == '\n') break;
1244                 return NULL;
1245         }
1246
1247         headers = procheader_get_header_array_asis(fp);
1248
1249         sorted_headers = g_ptr_array_new();
1250
1251         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1252              disphdr_list = disphdr_list->next) {
1253                 DisplayHeaderProp *dp =
1254                         (DisplayHeaderProp *)disphdr_list->data;
1255
1256                 for (i = 0; i < headers->len; i++) {
1257                         header = g_ptr_array_index(headers, i);
1258
1259                         if (procheader_headername_equal(header->name,
1260                                                         dp->name)) {
1261                                 if (dp->hidden)
1262                                         procheader_header_free(header);
1263                                 else
1264                                         g_ptr_array_add(sorted_headers, header);
1265
1266                                 g_ptr_array_remove_index(headers, i);
1267                                 i--;
1268                         }
1269                 }
1270         }
1271
1272         if (prefs_common.show_other_header) {
1273                 for (i = 0; i < headers->len; i++) {
1274                         header = g_ptr_array_index(headers, i);
1275                         g_ptr_array_add(sorted_headers, header);
1276                 }
1277                 g_ptr_array_free(headers, TRUE);
1278         } else
1279                 procheader_header_array_destroy(headers);
1280
1281
1282         return sorted_headers;
1283 }
1284
1285 #if HAVE_LIBCOMPFACE
1286 static void textview_show_xface(TextView *textview)
1287 {
1288         gchar xface[2048];
1289         MsgInfo *msginfo = textview->messageview->msginfo;
1290         static gchar *xpm_xface[XPM_XFACE_HEIGHT];
1291         static gboolean xpm_xface_init = TRUE;
1292         GdkPixmap *pixmap;
1293         GdkBitmap *mask;
1294         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1295
1296         gtk_text_view_set_border_window_size(text, GTK_TEXT_WINDOW_RIGHT, 0);
1297
1298         if (prefs_common.display_header_pane
1299         ||  !prefs_common.display_xface)
1300                 goto bail;
1301
1302         if (!msginfo)
1303                 goto bail;
1304
1305         if (!msginfo->xface || strlen(msginfo->xface) < 5) {
1306                 goto bail;
1307         }
1308
1309         strncpy(xface, msginfo->xface, sizeof(xface));
1310
1311         if (uncompface(xface) < 0) {
1312                 g_warning("uncompface failed\n");
1313                 goto bail;
1314         }
1315
1316         if (xpm_xface_init) {
1317                 gint i;
1318
1319                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
1320                         xpm_xface[i] = g_malloc(WIDTH + 1);
1321                         *xpm_xface[i] = '\0';
1322                 }
1323                 xpm_xface_init = FALSE;
1324         }
1325
1326         create_xpm_from_xface(xpm_xface, xface);
1327
1328         pixmap = gdk_pixmap_create_from_xpm_d
1329                 (textview->text->window, &mask,
1330                  &textview->text->style->white, xpm_xface);
1331
1332         gtk_text_view_set_border_window_size(text, GTK_TEXT_WINDOW_RIGHT,
1333                 WIDTH+10);
1334
1335         if (textview->image)
1336                 gtk_widget_destroy(textview->image);
1337
1338         textview->image = gtk_image_new_from_pixmap(pixmap, mask);
1339         gtk_widget_show(textview->image);
1340         gtk_text_view_add_child_in_window(text, textview->image,
1341                 GTK_TEXT_WINDOW_RIGHT, 5, 5);
1342
1343         gtk_widget_show_all(textview->text);
1344
1345         return;
1346 bail:
1347         if (textview->image)
1348                 gtk_widget_destroy(textview->image);
1349         textview->image = NULL;
1350
1351 }
1352 #endif
1353
1354 static void textview_show_header(TextView *textview, GPtrArray *headers)
1355 {
1356         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1357         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1358         GtkTextIter iter;
1359         Header *header;
1360         gint i;
1361
1362         g_return_if_fail(headers != NULL);
1363
1364         for (i = 0; i < headers->len; i++) {
1365                 header = g_ptr_array_index(headers, i);
1366                 g_return_if_fail(header->name != NULL);
1367
1368                 gtk_text_buffer_get_end_iter (buffer, &iter);
1369                 gtk_text_buffer_insert_with_tags_by_name
1370                         (buffer, &iter, header->name, -1,
1371                          "header_title", "header", NULL);
1372                 if (header->name[strlen(header->name) - 1] != ' ')
1373                 gtk_text_buffer_insert_with_tags_by_name
1374                                 (buffer, &iter, " ", 1,
1375                                  "header_title", "header", NULL);
1376
1377                 if (procheader_headername_equal(header->name, "Subject") ||
1378                     procheader_headername_equal(header->name, "From")    ||
1379                     procheader_headername_equal(header->name, "To")      ||
1380                     procheader_headername_equal(header->name, "Cc"))
1381                         unfold_line(header->body);
1382
1383                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1384                      procheader_headername_equal(header->name,
1385                                                  "X-Newsreader")) &&
1386                     strstr(header->body, "Sylpheed") != NULL) {
1387                         gtk_text_buffer_get_end_iter (buffer, &iter);
1388                         gtk_text_buffer_insert_with_tags_by_name
1389                                 (buffer, &iter, header->body, -1,
1390                                  "header", "emphasis", NULL);
1391                 } else {
1392                         textview_make_clickable_parts(textview, "header", "link",
1393                                                       header->body);
1394                 }
1395                 gtk_text_buffer_get_end_iter (buffer, &iter);
1396                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1397                                                          "header", NULL);
1398         }
1399 #if HAVE_LIBCOMPFACE
1400         textview_show_xface(textview);
1401 #endif
1402 }
1403
1404 gboolean textview_search_string(TextView *textview, const gchar *str,
1405                                 gboolean case_sens)
1406 {
1407         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1408         GtkTextBuffer *buffer;
1409         GtkTextIter iter, match_pos;
1410         GtkTextMark *mark;
1411         gint len;
1412
1413         g_return_val_if_fail(str != NULL, FALSE);
1414
1415         buffer = gtk_text_view_get_buffer(text);
1416
1417         len = g_utf8_strlen(str, -1);
1418         g_return_val_if_fail(len >= 0, FALSE);
1419
1420         mark = gtk_text_buffer_get_insert(buffer);
1421         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
1422
1423         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
1424                                    &match_pos)) {
1425                 GtkTextIter end = match_pos;
1426
1427                 gtk_text_iter_forward_chars(&end, len);
1428                 /* place "insert" at the last character */
1429                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
1430                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
1431                 return TRUE;
1432         }
1433
1434         return FALSE;
1435 }
1436
1437 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1438                                          gboolean case_sens)
1439 {
1440         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1441         GtkTextBuffer *buffer;
1442         GtkTextIter iter, match_pos;
1443         GtkTextMark *mark;
1444         gint len;
1445
1446         g_return_val_if_fail(str != NULL, FALSE);
1447
1448         buffer = gtk_text_view_get_buffer(text);
1449
1450         len = g_utf8_strlen(str, -1);
1451         g_return_val_if_fail(len >= 0, FALSE);
1452
1453         mark = gtk_text_buffer_get_insert(buffer);
1454         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
1455
1456         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
1457                                             &match_pos)) {
1458                 GtkTextIter end = match_pos;
1459
1460                 gtk_text_iter_forward_chars(&end, len);
1461                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
1462                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
1463                 return TRUE;
1464         }
1465
1466         return FALSE;
1467 }
1468
1469 void textview_scroll_one_line(TextView *textview, gboolean up)
1470 {
1471         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1472         GtkAdjustment *vadj = text->vadjustment;
1473         gfloat upper;
1474
1475         if (prefs_common.enable_smooth_scroll) {
1476                 textview_smooth_scroll_one_line(textview, up);
1477                 return;
1478         }
1479
1480         if (!up) {
1481                 upper = vadj->upper - vadj->page_size;
1482                 if (vadj->value < upper) {
1483                         vadj->value += vadj->step_increment;
1484                         vadj->value = MIN(vadj->value, upper);
1485                         g_signal_emit_by_name(G_OBJECT(vadj),
1486                                               "value_changed", 0);
1487                 }
1488         } else {
1489                 if (vadj->value > 0.0) {
1490                         vadj->value -= vadj->step_increment;
1491                         vadj->value = MAX(vadj->value, 0.0);
1492                         g_signal_emit_by_name(G_OBJECT(vadj),
1493                                               "value_changed", 0);
1494                 }
1495         }
1496 }
1497
1498 gboolean textview_scroll_page(TextView *textview, gboolean up)
1499 {
1500         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1501         GtkAdjustment *vadj = text->vadjustment;
1502         gfloat upper;
1503         gfloat page_incr;
1504
1505         if (prefs_common.enable_smooth_scroll)
1506                 return textview_smooth_scroll_page(textview, up);
1507
1508         if (prefs_common.scroll_halfpage)
1509                 page_incr = vadj->page_increment / 2;
1510         else
1511                 page_incr = vadj->page_increment;
1512
1513         if (!up) {
1514                 upper = vadj->upper - vadj->page_size;
1515                 if (vadj->value < upper) {
1516                         vadj->value += page_incr;
1517                         vadj->value = MIN(vadj->value, upper);
1518                         g_signal_emit_by_name(G_OBJECT(vadj),
1519                                               "value_changed", 0);
1520                 } else
1521                         return FALSE;
1522         } else {
1523                 if (vadj->value > 0.0) {
1524                         vadj->value -= page_incr;
1525                         vadj->value = MAX(vadj->value, 0.0);
1526                         g_signal_emit_by_name(G_OBJECT(vadj),
1527                                               "value_changed", 0);
1528                 } else
1529                         return FALSE;
1530         }
1531
1532         return TRUE;
1533 }
1534
1535 static void textview_smooth_scroll_do(TextView *textview,
1536                                       gfloat old_value, gfloat last_value,
1537                                       gint step)
1538 {
1539         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1540         GtkAdjustment *vadj = text->vadjustment;
1541         gint change_value;
1542         gboolean up;
1543         gint i;
1544
1545         if (old_value < last_value) {
1546                 change_value = last_value - old_value;
1547                 up = FALSE;
1548         } else {
1549                 change_value = old_value - last_value;
1550                 up = TRUE;
1551         }
1552
1553         for (i = step; i <= change_value; i += step) {
1554                 vadj->value = old_value + (up ? -i : i);
1555                 g_signal_emit_by_name(G_OBJECT(vadj),
1556                                       "value_changed", 0);
1557         }
1558
1559         vadj->value = last_value;
1560         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1561
1562         gtk_widget_queue_draw(GTK_WIDGET(text));
1563 }
1564
1565 static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
1566 {
1567         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1568         GtkAdjustment *vadj = text->vadjustment;
1569         gfloat upper;
1570         gfloat old_value;
1571         gfloat last_value;
1572
1573         if (!up) {
1574                 upper = vadj->upper - vadj->page_size;
1575                 if (vadj->value < upper) {
1576                         old_value = vadj->value;
1577                         last_value = vadj->value + vadj->step_increment;
1578                         last_value = MIN(last_value, upper);
1579
1580                         textview_smooth_scroll_do(textview, old_value,
1581                                                   last_value,
1582                                                   prefs_common.scroll_step);
1583                 }
1584         } else {
1585                 if (vadj->value > 0.0) {
1586                         old_value = vadj->value;
1587                         last_value = vadj->value - vadj->step_increment;
1588                         last_value = MAX(last_value, 0.0);
1589
1590                         textview_smooth_scroll_do(textview, old_value,
1591                                                   last_value,
1592                                                   prefs_common.scroll_step);
1593                 }
1594         }
1595 }
1596
1597 static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
1598 {
1599         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1600         GtkAdjustment *vadj = text->vadjustment;
1601         gfloat upper;
1602         gfloat page_incr;
1603         gfloat old_value;
1604         gfloat last_value;
1605
1606         if (prefs_common.scroll_halfpage)
1607                 page_incr = vadj->page_increment / 2;
1608         else
1609                 page_incr = vadj->page_increment;
1610
1611         if (!up) {
1612                 upper = vadj->upper - vadj->page_size;
1613                 if (vadj->value < upper) {
1614                         old_value = vadj->value;
1615                         last_value = vadj->value + page_incr;
1616                         last_value = MIN(last_value, upper);
1617
1618                         textview_smooth_scroll_do(textview, old_value,
1619                                                   last_value,
1620                                                   prefs_common.scroll_step);
1621                 } else
1622                         return FALSE;
1623         } else {
1624                 if (vadj->value > 0.0) {
1625                         old_value = vadj->value;
1626                         last_value = vadj->value - page_incr;
1627                         last_value = MAX(last_value, 0.0);
1628
1629                         textview_smooth_scroll_do(textview, old_value,
1630                                                   last_value,
1631                                                   prefs_common.scroll_step);
1632                 } else
1633                         return FALSE;
1634         }
1635
1636         return TRUE;
1637 }
1638
1639 #define KEY_PRESS_EVENT_STOP() \
1640         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1641                                        "key_press_event");
1642
1643 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1644                                  TextView *textview)
1645 {
1646         SummaryView *summaryview = NULL;
1647         MessageView *messageview = textview->messageview;
1648
1649         if (!event) return FALSE;
1650         if (messageview->mainwin)
1651                 summaryview = messageview->mainwin->summaryview;
1652
1653         switch (event->keyval) {
1654         case GDK_Tab:
1655         case GDK_Home:
1656         case GDK_Left:
1657         case GDK_Up:
1658         case GDK_Right:
1659         case GDK_Down:
1660         case GDK_Page_Up:
1661         case GDK_Page_Down:
1662         case GDK_End:
1663         case GDK_Control_L:
1664         case GDK_Control_R:
1665                 return FALSE;
1666         case GDK_space:
1667                 if (summaryview)
1668                         summary_pass_key_press_event(summaryview, event);
1669                 else
1670                         textview_scroll_page
1671                                 (textview,
1672                                  (event->state &
1673                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1674                 break;
1675         case GDK_BackSpace:
1676                 textview_scroll_page(textview, TRUE);
1677                 break;
1678         case GDK_Return:
1679                 textview_scroll_one_line
1680                         (textview, (event->state &
1681                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1682                 break;
1683         case GDK_Delete:
1684                 if (summaryview)
1685                         summary_pass_key_press_event(summaryview, event);
1686                 break;
1687         case GDK_y:
1688         case GDK_t:
1689         case GDK_l:
1690         case GDK_c:
1691                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
1692                         KEY_PRESS_EVENT_STOP();
1693                         mimeview_pass_key_press_event(messageview->mimeview,
1694                                                       event);
1695                         break;
1696                 }
1697                 /* possible fall through */
1698         default:
1699                 if (summaryview &&
1700                     event->window != messageview->mainwin->window->window) {
1701                         GdkEventKey tmpev = *event;
1702
1703                         tmpev.window = messageview->mainwin->window->window;
1704                         KEY_PRESS_EVENT_STOP();
1705                         gtk_widget_event(messageview->mainwin->window,
1706                                          (GdkEvent *)&tmpev);
1707                 }
1708                 break;
1709         }
1710
1711         return TRUE;
1712 }
1713
1714 static gboolean textview_motion_notify(GtkWidget *widget,
1715                                        GdkEventMotion *event,
1716                                        TextView *textview)
1717 {
1718         textview_uri_update(textview, event->x, event->y);
1719         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
1720
1721         return FALSE;
1722 }
1723
1724 static gboolean textview_leave_notify(GtkWidget *widget,
1725                                       GdkEventCrossing *event,
1726                                       TextView *textview)
1727 {
1728         textview_uri_update(textview, -1, -1);
1729
1730         return FALSE;
1731 }
1732
1733 static gboolean textview_visibility_notify(GtkWidget *widget,
1734                                            GdkEventVisibility *event,
1735                                            TextView *textview)
1736 {
1737         gint wx, wy;
1738         GdkWindow *window;
1739
1740         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
1741                                           GTK_TEXT_WINDOW_TEXT);
1742
1743         /* check if occurred for the text window part */
1744         if (window != event->window)
1745                 return FALSE;
1746
1747         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
1748         textview_uri_update(textview, wx, wy);
1749
1750         return FALSE;
1751 }
1752
1753 static void textview_uri_update(TextView *textview, gint x, gint y)
1754 {
1755         GtkTextBuffer *buffer;
1756         GtkTextIter start_iter, end_iter;
1757         RemoteURI *uri = NULL;
1758
1759         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1760
1761         if (x != -1 && y != -1) {
1762                 gint bx, by;
1763                 GtkTextIter iter;
1764                 GSList *tags;
1765                 GSList *cur;
1766
1767                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
1768                                                       GTK_TEXT_WINDOW_WIDGET,
1769                                                       x, y, &bx, &by);
1770                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
1771                                                    &iter, bx, by);
1772
1773                 tags = gtk_text_iter_get_tags(&iter);
1774                 for (cur = tags; cur != NULL; cur = cur->next) {
1775                         GtkTextTag *tag = cur->data;
1776                         char *name;
1777
1778                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
1779                         if (!strcmp(name, "link")
1780                             && textview_get_uri_range(textview, &iter, tag,
1781                                                       &start_iter, &end_iter))
1782                                 uri = textview_get_uri_from_range(textview,
1783                                                                   &iter, tag,
1784                                                                   &start_iter,
1785                                                                   &end_iter);
1786                         g_free(name);
1787
1788                         if (uri)
1789                                 break;
1790                 }
1791                 g_slist_free(tags);
1792         }
1793
1794         if (uri != textview->uri_hover) {
1795                 GdkWindow *window;
1796
1797                 if (textview->uri_hover)
1798                         gtk_text_buffer_remove_tag_by_name(buffer,
1799                                                            "link-hover",
1800                                                            &textview->uri_hover_start_iter,
1801                                                            &textview->uri_hover_end_iter);
1802
1803                 textview->uri_hover = uri;
1804                 if (uri) {
1805                         textview->uri_hover_start_iter = start_iter;
1806                         textview->uri_hover_end_iter = end_iter;
1807                 }
1808
1809                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
1810                                                   GTK_TEXT_WINDOW_TEXT);
1811                 gdk_window_set_cursor(window, uri ? hand_cursor : text_cursor);
1812
1813                 TEXTVIEW_STATUSBAR_POP(textview);
1814
1815                 if (uri) {
1816                         char *trimmed_uri;
1817
1818                         gtk_text_buffer_apply_tag_by_name(buffer,
1819                                                           "link-hover",
1820                                                           &start_iter,
1821                                                           &end_iter);
1822
1823                         trimmed_uri = trim_string(uri->uri, 60);
1824                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
1825                         g_free(trimmed_uri);
1826                 }
1827         }
1828 }
1829
1830 static gboolean textview_get_uri_range(TextView *textview,
1831                                        GtkTextIter *iter,
1832                                        GtkTextTag *tag,
1833                                        GtkTextIter *start_iter,
1834                                        GtkTextIter *end_iter)
1835 {
1836         GtkTextIter _start_iter, _end_iter;
1837
1838         _end_iter = *iter;
1839         if (!gtk_text_iter_forward_to_tag_toggle(&_end_iter, tag)) {
1840                 debug_print("Can't find end");
1841                 return FALSE;
1842         }
1843
1844         _start_iter = _end_iter;
1845         if (!gtk_text_iter_backward_to_tag_toggle(&_start_iter, tag)) {
1846                 debug_print("Can't find start.");
1847                 return FALSE;
1848         }
1849
1850         *start_iter = _start_iter;
1851         *end_iter = _end_iter;
1852
1853         return TRUE;
1854 }
1855
1856 static RemoteURI *textview_get_uri_from_range(TextView *textview,
1857                                               GtkTextIter *iter,
1858                                               GtkTextTag *tag,
1859                                               GtkTextIter *start_iter,
1860                                               GtkTextIter *end_iter)
1861 {
1862         gint start_pos, end_pos, cur_pos;
1863         RemoteURI *uri = NULL;
1864         GSList *cur;
1865
1866         start_pos = gtk_text_iter_get_offset(start_iter);
1867         end_pos = gtk_text_iter_get_offset(end_iter);
1868         cur_pos = gtk_text_iter_get_offset(iter);
1869
1870         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
1871                 RemoteURI *uri_ = (RemoteURI *)cur->data;
1872                 if (start_pos == uri_->start &&
1873                     end_pos ==  uri_->end) {
1874                         uri = uri_;
1875                         break;
1876                 } else if (start_pos == uri_->start ||
1877                            end_pos == uri_->end) {
1878                         /* in case of contiguous links, textview_get_uri_range
1879                          * returns a broader range (start of 1st link to end
1880                          * of last link).
1881                          * In that case, correct link is the one covering
1882                          * current iter.
1883                          */
1884                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
1885                                 uri = uri_;
1886                                 break;
1887                         }
1888                 }
1889         }
1890
1891         return uri;
1892 }
1893
1894 static RemoteURI *textview_get_uri(TextView *textview,
1895                                    GtkTextIter *iter,
1896                                    GtkTextTag *tag)
1897 {
1898         GtkTextIter start_iter, end_iter;
1899         RemoteURI *uri = NULL;
1900
1901         if (textview_get_uri_range(textview, iter, tag, &start_iter,
1902                                    &end_iter))
1903                 uri = textview_get_uri_from_range(textview, iter, tag,
1904                                                   &start_iter, &end_iter);
1905
1906         return uri;
1907 }
1908
1909 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
1910                                             GdkEvent *event, GtkTextIter *iter,
1911                                             TextView *textview)
1912 {
1913         GdkEventButton *bevent;
1914         RemoteURI *uri = NULL;
1915
1916         if (!event)
1917                 return FALSE;
1918
1919         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
1920                 && event->type != GDK_MOTION_NOTIFY)
1921                 return FALSE;
1922
1923         uri = textview_get_uri(textview, iter, tag);
1924         if (!uri)
1925                 return FALSE;
1926
1927         bevent = (GdkEventButton *) event;
1928
1929         /* doubleclick: open compose / add address / browser */
1930         if ((event->type == GDK_BUTTON_PRESS && bevent->button == 1) ||
1931                 bevent->button == 2 || bevent->button == 3) {
1932                 if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
1933                         if (bevent->button == 3) {
1934                                 g_object_set_data(
1935                                         G_OBJECT(textview->mail_popup_menu),
1936                                         "menu_button", uri);
1937                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
1938                                                NULL, NULL, NULL, NULL,
1939                                                bevent->button, bevent->time);
1940                         } else {
1941                                 PrefsAccount *account = NULL;
1942
1943                                 if (textview->messageview && textview->messageview->msginfo &&
1944                                     textview->messageview->msginfo->folder) {
1945                                         FolderItem   *folder_item;
1946
1947                                         folder_item = textview->messageview->msginfo->folder;
1948                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
1949                                                 account = account_find_from_id(folder_item->prefs->default_account);
1950                                 }
1951                                 compose_new(account, uri->uri + 7, NULL);
1952                         }
1953                         return TRUE;
1954                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
1955                         if (bevent->button == 1 &&
1956                             textview_uri_security_check(textview, uri) == TRUE)
1957                                         open_uri(uri->uri,
1958                                                  prefs_common.uri_cmd);
1959                         else if (bevent->button == 3) {
1960                                 g_object_set_data(
1961                                         G_OBJECT(textview->link_popup_menu),
1962                                         "menu_button", uri);
1963                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
1964                                                NULL, NULL, NULL, NULL,
1965                                                bevent->button, bevent->time);
1966                         }
1967                         return TRUE;
1968                 } else {
1969                         if (bevent->button == 3) {
1970                                 g_object_set_data(
1971                                         G_OBJECT(textview->file_popup_menu),
1972                                         "menu_button", uri);
1973                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
1974                                                NULL, NULL, NULL, NULL,
1975                                                bevent->button, bevent->time);
1976                                 return TRUE;
1977                         }
1978                 }
1979         }
1980
1981         return FALSE;
1982 }
1983
1984 /*!
1985  *\brief    Check to see if a web URL has been disguised as a different
1986  *          URL (possible with HTML email).
1987  *
1988  *\param    uri The uri to check
1989  *
1990  *\param    textview The TextView the URL is contained in
1991  *
1992  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
1993  *          it anyway, otherwise FALSE
1994  */
1995 static gboolean textview_uri_security_check(TextView *textview, RemoteURI *uri)
1996 {
1997         gchar *visible_str;
1998         gboolean retval = TRUE;
1999         GtkTextBuffer *buffer;
2000         GtkTextIter start, end;
2001
2002         if (is_uri_string(uri->uri) == FALSE)
2003                 return TRUE;
2004
2005         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2006
2007         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2008         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2009
2010         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2011
2012         if (visible_str == NULL)
2013                 return TRUE;
2014
2015         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2016                 gchar *uri_path;
2017                 gchar *visible_uri_path;
2018
2019                 uri_path = get_uri_path(uri->uri);
2020                 visible_uri_path = get_uri_path(visible_str);
2021                 if (strcmp(uri_path, visible_uri_path) != 0)
2022                         retval = FALSE;
2023         }
2024
2025         if (retval == FALSE) {
2026                 gchar *msg;
2027                 AlertValue aval;
2028
2029                 msg = g_strdup_printf(_("The real URL (%s) is different from\n"
2030                                         "the apparent URL (%s).\n"
2031                                         "\n"
2032                                         "Open it anyway?"),
2033                                       uri->uri, visible_str);
2034                 aval = alertpanel_full(_("Fake URL warning"), msg,
2035                                        GTK_STOCK_YES, GTK_STOCK_NO, NULL, FALSE,
2036                                        NULL, ALERT_WARNING, G_ALERTALTERNATE);
2037                 g_free(msg);
2038                 if (aval == G_ALERTDEFAULT)
2039                         retval = TRUE;
2040         }
2041
2042         g_free(visible_str);
2043
2044         return retval;
2045 }
2046
2047 static void textview_uri_list_remove_all(GSList *uri_list)
2048 {
2049         GSList *cur;
2050
2051         for (cur = uri_list; cur != NULL; cur = cur->next) {
2052                 if (cur->data) {
2053                         g_free(((RemoteURI *)cur->data)->uri);
2054                         g_free(((RemoteURI *)cur->data)->filename);
2055                         g_free(cur->data);
2056                 }
2057         }
2058
2059         g_slist_free(uri_list);
2060 }
2061
2062 static void open_uri_cb (TextView *textview, guint action, void *data)
2063 {
2064         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2065                                            "menu_button");
2066         if (uri == NULL)
2067                 return;
2068
2069         if (textview_uri_security_check(textview, uri) == TRUE)
2070                 open_uri(uri->uri,
2071                          prefs_common.uri_cmd);
2072         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2073                           NULL);
2074 }
2075
2076 static void open_image_cb (TextView *textview, guint action, void *data)
2077 {
2078         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2079                                            "menu_button");
2080
2081         static gchar *default_cmdline = DEFAULT_IMAGE_VIEWER_CMD;
2082         gchar buf[1024];
2083         const gchar *cmd;
2084         const gchar *def_cmd;
2085         const gchar *p;
2086         gchar *filename = NULL;
2087         gchar *tmp_filename = NULL;
2088
2089         if (uri == NULL)
2090                 return;
2091
2092         if (uri->filename == NULL)
2093                 return;
2094
2095         filename = g_strdup(uri->filename);
2096
2097         if (!g_utf8_validate(filename, -1, NULL)) {
2098                 gchar *tmp = conv_filename_to_utf8(filename);
2099                 g_free(filename);
2100                 filename = tmp;
2101         }
2102
2103         subst_for_filename(filename);
2104
2105         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2106         copy_file(tmp_filename, filename, FALSE);
2107         g_free(tmp_filename);
2108
2109         cmd = prefs_common.mime_image_viewer;
2110         def_cmd = default_cmdline;
2111
2112         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2113             !strchr(p + 2, '%'))
2114                 g_snprintf(buf, sizeof(buf), cmd, filename);
2115         else {
2116                 if (cmd)
2117                         g_warning("Image viewer command line is invalid: '%s'", cmd);
2118                 if (def_cmd)
2119                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
2120                 else
2121                         return;
2122         }
2123
2124         execute_command_line(buf, TRUE);
2125
2126         g_free(filename);
2127
2128         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2129                           NULL);
2130 }
2131
2132 static void save_file_cb (TextView *textview, guint action, void *data)
2133 {
2134         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2135                                            "menu_button");
2136         gchar *filename = NULL;
2137         gchar *filepath = NULL;
2138         gchar *filedir = NULL;
2139         gchar *tmp_filename = NULL;
2140         if (uri == NULL)
2141                 return;
2142
2143         if (uri->filename == NULL)
2144                 return;
2145
2146         filename = g_strdup(uri->filename);
2147
2148         if (!g_utf8_validate(filename, -1, NULL)) {
2149                 gchar *tmp = conv_filename_to_utf8(filename);
2150                 g_free(filename);
2151                 filename = tmp;
2152         }
2153
2154         subst_for_filename(filename);
2155
2156         if (prefs_common.attach_save_dir)
2157                 filepath = g_strconcat(prefs_common.attach_save_dir,
2158                                        G_DIR_SEPARATOR_S, filename, NULL);
2159         else
2160                 filepath = g_strdup(filename);
2161
2162         g_free(filename);
2163
2164         filename = filesel_select_file_save(_("Save as"), filepath);
2165         if (!filename) {
2166                 g_free(filepath);
2167                 return;
2168         }
2169
2170         if (is_file_exist(filename)) {
2171                 AlertValue aval;
2172                 gchar *res;
2173
2174                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2175                                       filename);
2176                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_OK,
2177                                   GTK_STOCK_CANCEL, NULL);
2178                 g_free(res);
2179                 if (G_ALERTDEFAULT != aval)
2180                         return;
2181         }
2182
2183         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2184         copy_file(tmp_filename, filename, FALSE);
2185         g_free(tmp_filename);
2186
2187         filedir = g_path_get_dirname(filename);
2188         if (filedir && strcmp(filedir, ".")) {
2189                 if (prefs_common.attach_save_dir)
2190                         g_free(prefs_common.attach_save_dir);
2191                 prefs_common.attach_save_dir = g_strdup(filedir);
2192         }
2193
2194         g_free(filedir);
2195         g_free(filepath);
2196
2197         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2198                           NULL);
2199 }
2200
2201 static void copy_uri_cb (TextView *textview, guint action, void *data)
2202 {
2203         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2204                                            "menu_button");
2205         if (uri == NULL)
2206                 return;
2207
2208         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2209         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2210         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2211                           NULL);
2212 }
2213
2214 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2215 {
2216         gchar *fromname, *fromaddress;
2217         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2218                                            "menu_button");
2219         if (uri == NULL)
2220                 return;
2221
2222         /* extract url */
2223         fromaddress = g_strdup(uri->uri + 7);
2224         /* Hiroyuki: please put this function in utils.c! */
2225         fromname = procheader_get_fromname(fromaddress);
2226         extract_address(fromaddress);
2227         g_message("adding from textview %s <%s>", fromname, fromaddress);
2228         /* Add to address book - Match */
2229         addressbook_add_contact( fromname, fromaddress, NULL );
2230
2231         g_free(fromaddress);
2232         g_free(fromname);
2233 }
2234
2235 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2236 {
2237         PrefsAccount *account = NULL;
2238         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2239                                            "menu_button");
2240         if (uri == NULL)
2241                 return;
2242
2243         if (textview->messageview && textview->messageview->msginfo &&
2244             textview->messageview->msginfo->folder) {
2245                 FolderItem   *folder_item;
2246
2247                 folder_item = textview->messageview->msginfo->folder;
2248                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2249                         account = account_find_from_id(folder_item->prefs->default_account);
2250         }
2251         compose_new(account, uri->uri + 7, NULL);
2252 }
2253
2254 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2255 {
2256         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2257                                            "menu_button");
2258         if (uri == NULL)
2259                 return;
2260
2261         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2262         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2263         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2264                           NULL);
2265 }
2266