src/textview.c

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