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 quote_bgcolors[3] = {
  83         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  84         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  85         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  86 };
  87 static GdkColor signature_color = {
  88         (gulong)0,
  89         (gushort)0x7fff,
  90         (gushort)0x7fff,
  91         (gushort)0x7fff
  92 };
  93
  94 static GdkColor uri_color = {
  95         (gulong)0,
  96         (gushort)0,
  97         (gushort)0,
  98         (gushort)0
  99 };
 100
 101 static GdkColor emphasis_color = {
 102         (gulong)0,
 103         (gushort)0,
 104         (gushort)0,
 105         (gushort)0xcfff
 106 };
 107
 108 static GdkCursor *hand_cursor = NULL;
 109 static GdkCursor *text_cursor = NULL;
 110 static GdkCursor *watch_cursor= NULL;
 111
 112 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 113 {       if (textview->messageview->statusbar)                               \
 114         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 115                            textview->messageview->statusbar_cid, str);      \
 116 }
 117
 118 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 119 {       if (textview->messageview->statusbar)                              \
 120         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 121                           textview->messageview->statusbar_cid);           \
 122 }
 123
 124 static void textview_show_ertf          (TextView       *textview,
 125                                          FILE           *fp,
 126                                          CodeConverter  *conv);
 127 static void textview_add_part           (TextView       *textview,
 128                                          MimeInfo       *mimeinfo);
 129 static void textview_add_parts          (TextView       *textview,
 130                                          MimeInfo       *mimeinfo);
 131 static void textview_write_body         (TextView       *textview,
 132                                          MimeInfo       *mimeinfo);
 133 static void textview_show_html          (TextView       *textview,
 134                                          FILE           *fp,
 135                                          CodeConverter  *conv);
 136
 137 static void textview_write_line         (TextView       *textview,
 138                                          const gchar    *str,
 139                                          CodeConverter  *conv);
 140 static void textview_write_link         (TextView       *textview,
 141                                          const gchar    *str,
 142                                          const gchar    *uri,
 143                                          CodeConverter  *conv);
 144
 145 static GPtrArray *textview_scan_header  (TextView       *textview,
 146                                          FILE           *fp);
 147 static void textview_show_header        (TextView       *textview,
 148                                          GPtrArray      *headers);
 149
 150 static gint textview_key_pressed                (GtkWidget      *widget,
 151                                                  GdkEventKey    *event,
 152                                                  TextView       *textview);
 153 static gboolean textview_motion_notify          (GtkWidget      *widget,
 154                                                  GdkEventMotion *motion,
 155                                                  TextView       *textview);
 156 static gboolean textview_leave_notify           (GtkWidget        *widget,
 157                                                  GdkEventCrossing *event,
 158                                                  TextView         *textview);
 159 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 160                                                  GdkEventVisibility *event,
 161                                                  TextView       *textview);
 162 static void textview_uri_update                 (TextView       *textview,
 163                                                  gint           x,
 164                                                  gint           y);
 165 static gboolean textview_get_uri_range          (TextView       *textview,
 166                                                  GtkTextIter    *iter,
 167                                                  GtkTextTag     *tag,
 168                                                  GtkTextIter    *start_iter,
 169                                                  GtkTextIter    *end_iter);
 170 static RemoteURI *textview_get_uri_from_range   (TextView       *textview,
 171                                                  GtkTextIter    *iter,
 172                                                  GtkTextTag     *tag,
 173                                                  GtkTextIter    *start_iter,
 174                                                  GtkTextIter    *end_iter);
 175 static RemoteURI *textview_get_uri              (TextView       *textview,
 176                                                  GtkTextIter    *iter,
 177                                                  GtkTextTag     *tag);
 178 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 179                                                  GObject        *obj,
 180                                                  GdkEvent       *event,
 181                                                  GtkTextIter    *iter,
 182                                                  TextView       *textview);
 183
 184 static void textview_smooth_scroll_do           (TextView       *textview,
 185                                                  gfloat          old_value,
 186                                                  gfloat          last_value,
 187                                                  gint            step);
 188 static void textview_smooth_scroll_one_line     (TextView       *textview,
 189                                                  gboolean        up);
 190 static gboolean textview_smooth_scroll_page     (TextView       *textview,
 191                                                  gboolean        up);
 192
 193 static gboolean textview_uri_security_check     (TextView       *textview,
 194                                                  RemoteURI      *uri);
 195 static void textview_uri_list_remove_all        (GSList         *uri_list);
 196
 197 static void open_uri_cb                         (TextView       *textview,
 198                                                  guint           action,
 199                                                  void           *data);
 200 static void copy_uri_cb                         (TextView       *textview,
 201                                                  guint           action,
 202                                                  void           *data);
 203 static void add_uri_to_addrbook_cb              (TextView       *textview,
 204                                                  guint           action,
 205                                                  void           *data);
 206 static void mail_to_uri_cb                      (TextView       *textview,
 207                                                  guint           action,
 208                                                  void           *data);
 209 static void copy_mail_to_uri_cb                 (TextView       *textview,
 210                                                  guint           action,
 211                                                  void           *data);
 212 static void save_file_cb                        (TextView       *textview,
 213                                                  guint           action,
 214                                                  void           *data);
 215 static void open_image_cb                       (TextView       *textview,
 216                                                  guint           action,
 217                                                  void           *data);
 218 static void textview_show_icon(TextView *textview, const gchar *stock_id);
 219
 220 static GtkItemFactoryEntry textview_link_popup_entries[] =
 221 {
 222         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 223         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 224 };
 225
 226 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 227 {
 228         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 229         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 230         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 231 };
 232
 233 static GtkItemFactoryEntry textview_file_popup_entries[] =
 234 {
 235         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 236         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 237 };
 238
 239 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 240 {
 241 #ifndef WIDTH
 242 #  define WIDTH 48
 243 #  define HEIGHT 48
 244 #endif
 245         if (textview->image) {
 246                 gint x, y, x1;
 247                 x1 = textview->text->allocation.width - WIDTH - 5;
 248                 gtk_text_view_buffer_to_window_coords(
 249                         GTK_TEXT_VIEW(textview->text),
 250                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 251                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 252                         textview->image, x1, y);
 253         }
 254 }
 255
 256 static void textview_size_allocate_cb   (GtkWidget      *widget,
 257                                          GtkAllocation  *allocation,
 258                                          gpointer        data)
 259 {
 260         scrolled_cb(NULL, (TextView *)data);
 261 }
 262
 263 TextView *textview_create(void)
 264 {
 265         TextView *textview;
 266         GtkWidget *vbox;
 267         GtkWidget *scrolledwin;
 268         GtkWidget *text;
 269         GtkTextBuffer *buffer;
 270         GtkClipboard *clipboard;
 271         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 272         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 273         GtkAdjustment *adj;
 274         gint n_entries;
 275
 276         debug_print("Creating text view...\n");
 277         textview = g_new0(TextView, 1);
 278
 279         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 280         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 281                                        GTK_POLICY_AUTOMATIC,
 282                                        GTK_POLICY_AUTOMATIC);
 283         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 284                                             GTK_SHADOW_IN);
 285         gtk_widget_set_size_request
 286                 (scrolledwin, prefs_common.mainview_width, -1);
 287
 288         /* create GtkSText widgets for single-byte and multi-byte character */
 289         text = gtk_text_view_new();
 290         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 291         gtk_widget_show(text);
 292         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 293         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 294         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 295         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 296         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 297
 298         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 299         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 300         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 301
 302         gtk_widget_ensure_style(text);
 303
 304         gtk_widget_ref(scrolledwin);
 305
 306         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 307
 308         g_signal_connect(G_OBJECT(text), "key-press-event",
 309                          G_CALLBACK(textview_key_pressed), textview);
 310         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 311                          G_CALLBACK(textview_motion_notify), textview);
 312         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 313                          G_CALLBACK(textview_leave_notify), textview);
 314         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 315                          G_CALLBACK(textview_visibility_notify), textview);
 316         adj = gtk_scrolled_window_get_vadjustment(
 317                 GTK_SCROLLED_WINDOW(scrolledwin));
 318         g_signal_connect(G_OBJECT(adj), "value-changed",
 319                          G_CALLBACK(scrolled_cb), textview);
 320         g_signal_connect(G_OBJECT(text), "size_allocate",
 321                          G_CALLBACK(textview_size_allocate_cb),
 322                          textview);
 323
 324
 325         gtk_widget_show(scrolledwin);
 326
 327         vbox = gtk_vbox_new(FALSE, 0);
 328         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 329
 330         gtk_widget_show(vbox);
 331
 332         n_entries = sizeof(textview_link_popup_entries) /
 333                 sizeof(textview_link_popup_entries[0]);
 334         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 335                                       "<UriPopupMenu>", &link_popupfactory,
 336                                       textview);
 337
 338         n_entries = sizeof(textview_mail_popup_entries) /
 339                 sizeof(textview_mail_popup_entries[0]);
 340         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 341                                       "<UriPopupMenu>", &mail_popupfactory,
 342                                       textview);
 343
 344         n_entries = sizeof(textview_file_popup_entries) /
 345                 sizeof(textview_file_popup_entries[0]);
 346         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 347                                       "<FilePopupMenu>", &file_popupfactory,
 348                                       textview);
 349
 350         textview->vbox               = vbox;
 351         textview->scrolledwin        = scrolledwin;
 352         textview->text               = text;
 353         textview->uri_list           = NULL;
 354         textview->body_pos           = 0;
 355         textview->show_all_headers   = FALSE;
 356         textview->last_buttonpress   = GDK_NOTHING;
 357         textview->link_popup_menu    = link_popupmenu;
 358         textview->link_popup_factory = link_popupfactory;
 359         textview->mail_popup_menu    = mail_popupmenu;
 360         textview->mail_popup_factory = mail_popupfactory;
 361         textview->file_popup_menu    = file_popupmenu;
 362         textview->file_popup_factory = file_popupfactory;
 363         textview->image              = NULL;
 364         return textview;
 365 }
 366
 367 static void textview_create_tags(GtkTextView *text, TextView *textview)
 368 {
 369         GtkTextBuffer *buffer;
 370         GtkTextTag *tag;
 371         static PangoFontDescription *font_desc, *bold_font_desc;
 372
 373         if (!font_desc)
 374                 font_desc = pango_font_description_from_string
 375                         (NORMAL_FONT);
 376
 377         if (!bold_font_desc) {
 378                 bold_font_desc = pango_font_description_from_string
 379                         (NORMAL_FONT);
 380                 pango_font_description_set_weight
 381                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 382         }
 383
 384         buffer = gtk_text_view_get_buffer(text);
 385
 386         gtk_text_buffer_create_tag(buffer, "header",
 387                                    "pixels-above-lines", 0,
 388                                    "pixels-above-lines-set", TRUE,
 389                                    "pixels-below-lines", 0,
 390                                    "pixels-below-lines-set", TRUE,
 391                                    "font-desc", font_desc,
 392                                    "left-margin", 3,
 393                                    "left-margin-set", TRUE,
 394                                    NULL);
 395         gtk_text_buffer_create_tag(buffer, "header_title",
 396                                    "font-desc", bold_font_desc,
 397                                    NULL);
 398         if (prefs_common.enable_bgcolor) {
 399                 gtk_text_buffer_create_tag(buffer, "quote0",
 400                                 "foreground-gdk", &quote_colors[0],
 401                                 "paragraph-background-gdk", &quote_bgcolors[0],
 402                                 NULL);
 403                 gtk_text_buffer_create_tag(buffer, "quote1",
 404                                 "foreground-gdk", &quote_colors[1],
 405                                 "paragraph-background-gdk", &quote_bgcolors[1],
 406                                 NULL);
 407                 gtk_text_buffer_create_tag(buffer, "quote2",
 408                                 "foreground-gdk", &quote_colors[2],
 409                                 "paragraph-background-gdk", &quote_bgcolors[2],
 410                                 NULL);
 411         } else {
 412                 gtk_text_buffer_create_tag(buffer, "quote0",
 413                                 "foreground-gdk", &quote_colors[0],
 414                                 NULL);
 415                 gtk_text_buffer_create_tag(buffer, "quote1",
 416                                 "foreground-gdk", &quote_colors[1],
 417                                 NULL);
 418                 gtk_text_buffer_create_tag(buffer, "quote2",
 419                                 "foreground-gdk", &quote_colors[2],
 420                                 NULL);
 421         }
 422         gtk_text_buffer_create_tag(buffer, "emphasis",
 423                         "foreground-gdk", &emphasis_color,
 424                         NULL);
 425         gtk_text_buffer_create_tag(buffer, "signature",
 426                         "foreground-gdk", &signature_color,
 427                         NULL);
 428         tag = gtk_text_buffer_create_tag(buffer, "link",
 429                         "foreground-gdk", &uri_color,
 430                         NULL);
 431         gtk_text_buffer_create_tag(buffer, "link-hover",
 432                         "foreground-gdk", &uri_color,
 433                         "underline", PANGO_UNDERLINE_SINGLE,
 434                         NULL);
 435         g_signal_connect(G_OBJECT(tag), "event",
 436                          G_CALLBACK(textview_uri_button_pressed), textview);
 437  }
 438
 439 void textview_init(TextView *textview)
 440 {
 441         if (!hand_cursor)
 442                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 443         if (!text_cursor)
 444                 text_cursor = gdk_cursor_new(GDK_XTERM);
 445         if (!watch_cursor)
 446                 watch_cursor = gdk_cursor_new(GDK_WATCH);
 447
 448         textview_reflect_prefs(textview);
 449         textview_set_all_headers(textview, FALSE);
 450         textview_set_font(textview, NULL);
 451         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 452 }
 453
 454 #if GTK_CHECK_VERSION(2, 8, 0)
 455  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 456         tag = gtk_text_tag_table_lookup(tags, tagname); \
 457         if (tag) \
 458                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, "paragraph-background-gdk", colorbg, NULL); \
 459  }
 460 #else
 461  #define CHANGE_TAG_COLOR(tagname, colorfg, colorbg) { \
 462         tag = gtk_text_tag_table_lookup(tags, tagname); \
 463         if (tag) \
 464                 g_object_set(G_OBJECT(tag), "foreground-gdk", colorfg, NULL); \
 465  }
 466 #endif
 467
 468 static void textview_update_message_colors(TextView *textview)
 469 {
 470         GdkColor black = {0, 0, 0, 0};
 471         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 472         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 473
 474         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 475         GtkTextTag *tag = NULL;
 476
 477         quote_bgcolors[0] = quote_bgcolors[1] = quote_bgcolors[2] = black;
 478         quote_colors[0] = quote_colors[1] = quote_colors[2] =
 479                 uri_color = emphasis_color = signature_color = black;
 480
 481         if (prefs_common.enable_color) {
 482                 /* grab the quote colors, converting from an int to a GdkColor */
 483                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 484                                                &quote_colors[0]);
 485                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 486                                                &quote_colors[1]);
 487                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 488                                                &quote_colors[2]);
 489                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 490                                                &uri_color);
 491                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 492                                                &signature_color);
 493                 emphasis_color = colored_emphasis;
 494         }
 495         if (prefs_common.enable_color && prefs_common.enable_bgcolor) {
 496                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_bgcol,
 497                                                    &quote_bgcolors[0]);
 498                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_bgcol,
 499                                                    &quote_bgcolors[1]);
 500                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_bgcol,
 501                                                    &quote_bgcolors[2]);
 502                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], &quote_bgcolors[0]);
 503                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], &quote_bgcolors[1]);
 504                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], &quote_bgcolors[2]);
 505         } else {
 506                 CHANGE_TAG_COLOR("quote0", &quote_colors[0], NULL);
 507                 CHANGE_TAG_COLOR("quote1", &quote_colors[1], NULL);
 508                 CHANGE_TAG_COLOR("quote2", &quote_colors[2], NULL);
 509         }
 510
 511         CHANGE_TAG_COLOR("emphasis", &emphasis_color, NULL);
 512         CHANGE_TAG_COLOR("signature", &signature_color, NULL);
 513         CHANGE_TAG_COLOR("link", &uri_color, NULL);
 514         CHANGE_TAG_COLOR("link-hover", &uri_color, NULL);
 515 }
 516 #undef CHANGE_TAG_COLOR
 517
 518 void textview_reflect_prefs(TextView *textview)
 519 {
 520         textview_set_font(textview, NULL);
 521         textview_update_message_colors(textview);
 522         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 523                                          prefs_common.textview_cursor_visible);
 524 }
 525
 526 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 527                            const gchar *file)
 528 {
 529         textview_clear(textview);
 530
 531         textview_add_parts(textview, mimeinfo);
 532
 533         textview_set_position(textview, 0);
 534 }
 535
 536 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 537 {
 538         g_return_if_fail(mimeinfo != NULL);
 539         g_return_if_fail(fp != NULL);
 540
 541         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 542             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 543                 textview_clear(textview);
 544                 textview_add_parts(textview, mimeinfo);
 545                 return;
 546         }
 547
 548         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 549                 perror("fseek");
 550
 551         textview_clear(textview);
 552
 553         if (mimeinfo->type == MIMETYPE_MULTIPART)
 554                 textview_add_parts(textview, mimeinfo);
 555         else
 556                 textview_write_body(textview, mimeinfo);
 557 }
 558
 559 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 560 {
 561         GtkTextView *text;
 562         GtkTextBuffer *buffer;
 563         GtkTextIter iter, start_iter;
 564         gchar buf[BUFFSIZE];
 565         GPtrArray *headers = NULL;
 566         const gchar *name;
 567         gchar *content_type;
 568         gint charcount;
 569
 570         g_return_if_fail(mimeinfo != NULL);
 571         text = GTK_TEXT_VIEW(textview->text);
 572         buffer = gtk_text_view_get_buffer(text);
 573         charcount = gtk_text_buffer_get_char_count(buffer);
 574         gtk_text_buffer_get_end_iter(buffer, &iter);
 575
 576         if (mimeinfo->type == MIMETYPE_MULTIPART) return;
 577
 578         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 579                 FILE *fp;
 580
 581                 fp = g_fopen(mimeinfo->data.filename, "rb");
 582                 fseek(fp, mimeinfo->offset, SEEK_SET);
 583                 headers = textview_scan_header(textview, fp);
 584                 if (headers) {
 585                         if (charcount > 0)
 586                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 587                         textview_show_header(textview, headers);
 588                         procheader_header_array_destroy(headers);
 589                 }
 590                 fclose(fp);
 591                 return;
 592         }
 593
 594         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 595         content_type = procmime_get_content_type_str(mimeinfo->type,
 596                                                      mimeinfo->subtype);
 597         if (name == NULL)
 598                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 599         if (name != NULL)
 600                 g_snprintf(buf, sizeof(buf), "\n[%s  %s (%d bytes)]\n",
 601                            name, content_type, mimeinfo->length);
 602         else
 603                 g_snprintf(buf, sizeof(buf), "\n[%s (%d bytes)]\n",
 604                            content_type, mimeinfo->length);
 605
 606         g_free(content_type);
 607
 608         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 609         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 610             mimeinfo->type != MIMETYPE_TEXT)) {
 611                 gtk_text_buffer_insert(buffer, &iter, buf, -1);
 612                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 613                     prefs_common.inline_img ) {
 614                         GdkPixbuf *pixbuf;
 615                         GError *error = NULL;
 616                         gchar *filename;
 617                         RemoteURI *uri;
 618                         gchar *uri_str;
 619
 620                         filename = procmime_get_tmp_file_name(mimeinfo);
 621                         if (procmime_get_part(filename, mimeinfo) < 0) {
 622                                 g_warning("Can't get the image file.");
 623                                 g_free(filename);
 624                                 return;
 625                         }
 626
 627                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 628                         if (error != NULL) {
 629                                 g_warning("%s\n", error->message);
 630                                 g_error_free(error);
 631                         }
 632                         if (!pixbuf) {
 633                                 g_warning("Can't load the image.");
 634                                 g_free(filename);
 635                                 return;
 636                         }
 637
 638                         if (prefs_common.resize_img) {
 639                                 int new_width, new_height;
 640                                 GdkPixbuf *scaled;
 641                                 image_viewer_get_resized_size(gdk_pixbuf_get_width(pixbuf),
 642                                                  gdk_pixbuf_get_height(pixbuf),
 643                                                  textview->scrolledwin->allocation.width - 100,
 644                                                  gdk_pixbuf_get_height(pixbuf),
 645                                                  &new_width, &new_height);
 646                                 scaled = gdk_pixbuf_scale_simple
 647                                         (pixbuf, new_width, new_height, GDK_INTERP_BILINEAR);
 648
 649                                 g_object_unref(pixbuf);
 650                                 pixbuf = scaled;
 651                         }
 652
 653                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 654                         if (uri_str) {
 655                                 uri = g_new(RemoteURI, 1);
 656                                 uri->uri = uri_str;
 657                                 uri->start = gtk_text_iter_get_offset(&iter);
 658
 659                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 660
 661                                 uri->end = uri->start + 1;
 662                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 663                                 textview->uri_list =
 664                                         g_slist_append(textview->uri_list, uri);
 665
 666                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 667                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 668                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 669                                                 &start_iter, &iter);
 670                         } else {
 671                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 672                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 673                         }
 674
 675                         g_object_unref(pixbuf);
 676                         g_free(filename);
 677                 }
 678         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 679                 if (prefs_common.display_header && (charcount > 0))
 680                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 681
 682                 textview_write_body(textview, mimeinfo);
 683         }
 684 }
 685
 686 static void recursive_add_parts(TextView *textview, GNode *node)
 687 {
 688         GNode * iter;
 689         MimeInfo *mimeinfo;
 690
 691         mimeinfo = (MimeInfo *) node->data;
 692
 693         textview_add_part(textview, mimeinfo);
 694
 695         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 696             (mimeinfo->type != MIMETYPE_MESSAGE))
 697                 return;
 698
 699         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 700                 GNode * prefered_body;
 701                 int prefered_score;
 702
 703                 /*
 704                   text/plain : score 3
 705                   text/ *    : score 2
 706                   other      : score 1
 707                 */
 708                 prefered_body = NULL;
 709                 prefered_score = 0;
 710
 711                 for (iter = g_node_first_child(node) ; iter != NULL ;
 712                      iter = g_node_next_sibling(iter)) {
 713                         int score;
 714                         MimeInfo * submime;
 715
 716                         score = 1;
 717                         submime = (MimeInfo *) iter->data;
 718                         if (submime->type == MIMETYPE_TEXT)
 719                                 score = 2;
 720
 721                         if (submime->subtype != NULL) {
 722                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 723                                         score = 3;
 724                         }
 725
 726                         if (score > prefered_score) {
 727                                 prefered_score = score;
 728                                 prefered_body = iter;
 729                         }
 730                 }
 731
 732                 if (prefered_body != NULL) {
 733                         recursive_add_parts(textview, prefered_body);
 734                 }
 735         }
 736         else {
 737                 for (iter = g_node_first_child(node) ; iter != NULL ;
 738                      iter = g_node_next_sibling(iter)) {
 739                         recursive_add_parts(textview, iter);
 740                 }
 741         }
 742 }
 743
 744 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 745 {
 746         g_return_if_fail(mimeinfo != NULL);
 747
 748         recursive_add_parts(textview, mimeinfo->node);
 749 }
 750
 751 #define TEXT_INSERT(str) \
 752         gtk_text_buffer_insert_with_tags_by_name \
 753                                 (buffer, &iter, str, -1,\
 754                                  "header", NULL)
 755
 756 #define TEXT_INSERT_LINK(str, fname) {                                  \
 757         RemoteURI *uri;                                                 \
 758         uri = g_new(RemoteURI, 1);                                      \
 759         uri->uri = g_strdup("");                                        \
 760         uri->start = gtk_text_iter_get_offset(&iter);                   \
 761         gtk_text_buffer_insert_with_tags_by_name                        \
 762                                 (buffer, &iter, str, -1,                \
 763                                  "link", "header_title", "header",      \
 764                                  NULL);                                 \
 765         uri->end = gtk_text_iter_get_offset(&iter);                     \
 766         uri->filename = g_strdup(fname);                                \
 767         textview->uri_list =                                            \
 768                 g_slist_append(textview->uri_list, uri);                \
 769 }
 770
 771 void textview_show_error(TextView *textview)
 772 {
 773         GtkTextView *text;
 774         GtkTextBuffer *buffer;
 775         GtkTextIter iter;
 776
 777         textview_set_font(textview, NULL);
 778         textview_clear(textview);
 779
 780         text = GTK_TEXT_VIEW(textview->text);
 781         buffer = gtk_text_view_get_buffer(text);
 782         gtk_text_buffer_get_start_iter(buffer, &iter);
 783
 784         TEXT_INSERT(_("\n"
 785                       "  This message can't be displayed.\n"
 786                       "  This is probably due to a network error.\n"
 787                       "\n"
 788                       "  Use "));
 789         TEXT_INSERT_LINK(_("'View Log'"), "sc://view_log");
 790         TEXT_INSERT(_(" in the Tools menu for more information."));
 791         textview_show_icon(textview, GTK_STOCK_DIALOG_ERROR);
 792
 793 }
 794
 795 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 796 {
 797         GtkTextView *text;
 798         GtkTextBuffer *buffer;
 799         GtkTextIter iter;
 800
 801         if (!partinfo) return;
 802
 803         textview_set_font(textview, NULL);
 804         textview_clear(textview);
 805
 806         text = GTK_TEXT_VIEW(textview->text);
 807         buffer = gtk_text_view_get_buffer(text);
 808         gtk_text_buffer_get_start_iter(buffer, &iter);
 809
 810         TEXT_INSERT("\n");
 811         TEXT_INSERT(_("  The following can be performed on this part by\n"));
 812         TEXT_INSERT(_("  right-clicking the icon or list item:\n"));
 813
 814         TEXT_INSERT(_("     - To save, select "));
 815         TEXT_INSERT_LINK(_("'Save as...'"), "sc://save_as");
 816         TEXT_INSERT(_(" (Shortcut key: 'y')\n"));
 817         TEXT_INSERT(_("     - To display as text, select "));
 818         TEXT_INSERT_LINK(_("'Display as text'"), "sc://display_as_text");
 819         TEXT_INSERT(_(" (Shortcut key: 't')\n"));
 820         TEXT_INSERT(_("     - To open with an external program, select "));
 821         TEXT_INSERT_LINK(_("'Open'"), "sc://open");
 822         TEXT_INSERT(_(" (Shortcut key: 'l')\n"));
 823         TEXT_INSERT(_("       (alternately double-click, or click the middle "));
 824         TEXT_INSERT(_("mouse button)\n"));
 825         TEXT_INSERT(_("     - Or use "));
 826         TEXT_INSERT_LINK(_("'Open with...'"), "sc://open_with");
 827         TEXT_INSERT(_(" (Shortcut key: 'o')\n"));
 828         textview_show_icon(textview, GTK_STOCK_DIALOG_INFO);
 829 }
 830
 831 #undef TEXT_INSERT
 832 #undef TEXT_INSERT_LINK
 833
 834 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 835 {
 836         FILE *tmpfp;
 837         gchar buf[BUFFSIZE];
 838         CodeConverter *conv;
 839         const gchar *charset;
 840
 841         if (textview->messageview->forced_charset)
 842                 charset = textview->messageview->forced_charset;
 843         else
 844                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 845
 846         textview_set_font(textview, charset);
 847
 848         conv = conv_code_converter_new(charset);
 849
 850         procmime_force_encoding(textview->messageview->forced_encoding);
 851
 852         textview->is_in_signature = FALSE;
 853
 854         procmime_decode_content(mimeinfo);
 855
 856         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 857             prefs_common.render_html) {
 858                 gchar *filename;
 859
 860                 filename = procmime_get_tmp_file_name(mimeinfo);
 861                 if (procmime_get_part(filename, mimeinfo) == 0) {
 862                         tmpfp = g_fopen(filename, "rb");
 863                         textview_show_html(textview, tmpfp, conv);
 864                         fclose(tmpfp);
 865                         g_unlink(filename);
 866                 }
 867                 g_free(filename);
 868         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 869                 gchar *filename;
 870
 871                 filename = procmime_get_tmp_file_name(mimeinfo);
 872                 if (procmime_get_part(filename, mimeinfo) == 0) {
 873                         tmpfp = g_fopen(filename, "rb");
 874                         textview_show_ertf(textview, tmpfp, conv);
 875                         fclose(tmpfp);
 876                         g_unlink(filename);
 877                 }
 878                 g_free(filename);
 879         } else {
 880                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 881                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 882                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 883                 while ((fgets(buf, sizeof(buf), tmpfp) != NULL) &&
 884                        (ftell(tmpfp) <= mimeinfo->offset + mimeinfo->length))
 885                         textview_write_line(textview, buf, conv);
 886                 fclose(tmpfp);
 887         }
 888
 889         conv_code_converter_destroy(conv);
 890         procmime_force_encoding(0);
 891 }
 892
 893 static void textview_show_html(TextView *textview, FILE *fp,
 894                                CodeConverter *conv)
 895 {
 896         SC_HTMLParser *parser;
 897         gchar *str;
 898
 899         parser = sc_html_parser_new(fp, conv);
 900         g_return_if_fail(parser != NULL);
 901
 902         while ((str = sc_html_parse(parser)) != NULL) {
 903                 if (parser->state == SC_HTML_HREF) {
 904                         /* first time : get and copy the URL */
 905                         if (parser->href == NULL) {
 906                                 /* ALF - the sylpheed html parser returns an empty string,
 907                                  * if still inside an <a>, but already parsed past HREF */
 908                                 str = strtok(str, " ");
 909                                 if (str) {
 910                                         parser->href = g_strdup(str);
 911                                         /* the URL may (or not) be followed by the
 912                                          * referenced text */
 913                                         str = strtok(NULL, "");
 914                                 }
 915                         }
 916                         if (str != NULL)
 917                                 textview_write_link(textview, str, parser->href, NULL);
 918                 } else
 919                         textview_write_line(textview, str, NULL);
 920         }
 921         textview_write_line(textview, "\n", NULL);
 922         sc_html_parser_destroy(parser);
 923 }
 924
 925 static void textview_show_ertf(TextView *textview, FILE *fp,
 926                                CodeConverter *conv)
 927 {
 928         ERTFParser *parser;
 929         gchar *str;
 930
 931         parser = ertf_parser_new(fp, conv);
 932         g_return_if_fail(parser != NULL);
 933
 934         while ((str = ertf_parse(parser)) != NULL) {
 935                 textview_write_line(textview, str, NULL);
 936         }
 937
 938         ertf_parser_destroy(parser);
 939 }
 940
 941 #define ADD_TXT_POS(bp_, ep_, pti_) \
 942         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
 943                 last = last->next; \
 944                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
 945                 last->next = NULL; \
 946         } else { \
 947                 g_warning("alloc error scanning URIs\n"); \
 948                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
 949                                                          linebuf, -1, \
 950                                                          fg_tag, NULL); \
 951                 return; \
 952         }
 953
 954 /* textview_make_clickable_parts() - colorizes clickable parts */
 955 static void textview_make_clickable_parts(TextView *textview,
 956                                           const gchar *fg_tag,
 957                                           const gchar *uri_tag,
 958                                           const gchar *linebuf,
 959                                           gboolean hdr)
 960 {
 961         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
 962         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 963         GtkTextIter iter;
 964         gchar *mybuf = g_strdup(linebuf);
 965
 966         /* parse table - in order of priority */
 967         struct table {
 968                 const gchar *needle; /* token */
 969
 970                 /* token search function */
 971                 gchar    *(*search)     (const gchar *haystack,
 972                                          const gchar *needle);
 973                 /* part parsing function */
 974                 gboolean  (*parse)      (const gchar *start,
 975                                          const gchar *scanpos,
 976                                          const gchar **bp_,
 977                                          const gchar **ep_,
 978                                          gboolean hdr);
 979                 /* part to URI function */
 980                 gchar    *(*build_uri)  (const gchar *bp,
 981                                          const gchar *ep);
 982         };
 983
 984         static struct table parser[] = {
 985                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
 986                 {"https://", strcasestr, get_uri_part,   make_uri_string},
 987                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
 988                 {"www.",     strcasestr, get_uri_part,   make_http_string},
 989                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
 990                 {"@",        strcasestr, get_email_part, make_email_string}
 991         };
 992         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
 993
 994         gint  n;
 995         const gchar *walk, *bp, *ep;
 996
 997         struct txtpos {
 998                 const gchar     *bp, *ep;       /* text position */
 999                 gint             pti;           /* index in parse table */
1000                 struct txtpos   *next;          /* next */
1001         } head = {NULL, NULL, 0,  NULL}, *last = &head;
1002
1003         if (!g_utf8_validate(linebuf, -1, NULL)) {
1004                 mybuf = g_malloc(strlen(linebuf)*2 +1);
1005                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
1006         }
1007
1008         gtk_text_buffer_get_end_iter(buffer, &iter);
1009
1010         /* parse for clickable parts, and build a list of begin and end positions  */
1011         for (walk = mybuf, n = 0;;) {
1012                 gint last_index = PARSE_ELEMS;
1013                 gchar *scanpos = NULL;
1014
1015                 /* FIXME: this looks phony. scanning for anything in the parse table */
1016                 for (n = 0; n < PARSE_ELEMS; n++) {
1017                         gchar *tmp;
1018
1019                         tmp = parser[n].search(walk, parser[n].needle);
1020                         if (tmp) {
1021                                 if (scanpos == NULL || tmp < scanpos) {
1022                                         scanpos = tmp;
1023                                         last_index = n;
1024                                 }
1025                         }
1026                 }
1027
1028                 if (scanpos) {
1029                         /* check if URI can be parsed */
1030                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
1031                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
1032                                         ADD_TXT_POS(bp, ep, last_index);
1033                                         walk = ep;
1034                         } else
1035                                 walk = scanpos +
1036                                         strlen(parser[last_index].needle);
1037                 } else
1038                         break;
1039         }
1040
1041         /* colorize this line */
1042         if (head.next) {
1043                 const gchar *normal_text = mybuf;
1044
1045                 /* insert URIs */
1046                 for (last = head.next; last != NULL;
1047                      normal_text = last->ep, last = last->next) {
1048                         RemoteURI *uri;
1049                         uri = g_new(RemoteURI, 1);
1050                         if (last->bp - normal_text > 0)
1051                                 gtk_text_buffer_insert_with_tags_by_name
1052                                         (buffer, &iter,
1053                                          normal_text,
1054                                          last->bp - normal_text,
1055                                          fg_tag, NULL);
1056                         uri->uri = parser[last->pti].build_uri(last->bp,
1057                                                                last->ep);
1058                         uri->start = gtk_text_iter_get_offset(&iter);
1059                         gtk_text_buffer_insert_with_tags_by_name
1060                                 (buffer, &iter, last->bp, last->ep - last->bp,
1061                                  uri_tag, fg_tag, NULL);
1062                         uri->end = gtk_text_iter_get_offset(&iter);
1063                         uri->filename = NULL;
1064                         textview->uri_list =
1065                                 g_slist_append(textview->uri_list, uri);
1066                 }
1067
1068                 if (*normal_text)
1069                         gtk_text_buffer_insert_with_tags_by_name
1070                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1071         } else {
1072                 gtk_text_buffer_insert_with_tags_by_name
1073                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1074         }
1075         g_free(mybuf);
1076 }
1077
1078 #undef ADD_TXT_POS
1079
1080 static void textview_write_line(TextView *textview, const gchar *str,
1081                                 CodeConverter *conv)
1082 {
1083         GtkTextView *text;
1084         GtkTextBuffer *buffer;
1085         GtkTextIter iter;
1086         gchar buf[BUFFSIZE];
1087         gchar *fg_color;
1088         gint quotelevel = -1;
1089         gchar quote_tag_str[10];
1090
1091         text = GTK_TEXT_VIEW(textview->text);
1092         buffer = gtk_text_view_get_buffer(text);
1093         gtk_text_buffer_get_end_iter(buffer, &iter);
1094
1095         if (!conv)
1096                 strncpy2(buf, str, sizeof(buf));
1097         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1098                 conv_localetodisp(buf, sizeof(buf), str);
1099
1100         strcrchomp(buf);
1101         fg_color = NULL;
1102
1103         /* change color of quotation
1104            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1105            Up to 3 levels of quotations are detected, and each
1106            level is colored using a different color. */
1107         if (prefs_common.enable_color
1108             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1109                 quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1110
1111                 /* set up the correct foreground color */
1112                 if (quotelevel > 2) {
1113                         /* recycle colors */
1114                         if (prefs_common.recycle_quote_colors)
1115                                 quotelevel %= 3;
1116                         else
1117                                 quotelevel = 2;
1118                 }
1119         }
1120
1121         if (quotelevel == -1)
1122                 fg_color = NULL;
1123         else {
1124                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1125                            "quote%d", quotelevel);
1126                 fg_color = quote_tag_str;
1127         }
1128
1129         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1130                 fg_color = "signature";
1131                 textview->is_in_signature = TRUE;
1132         }
1133
1134         textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1135 }
1136
1137 void textview_write_link(TextView *textview, const gchar *str,
1138                          const gchar *uri, CodeConverter *conv)
1139 {
1140         GdkColor *link_color = NULL;
1141         GtkTextView *text;
1142         GtkTextBuffer *buffer;
1143         GtkTextIter iter;
1144         gchar buf[BUFFSIZE];
1145         gchar *bufp;
1146         RemoteURI *r_uri;
1147
1148         if (!str || *str == '\0')
1149                 return;
1150         if (!uri)
1151                 return;
1152
1153         text = GTK_TEXT_VIEW(textview->text);
1154         buffer = gtk_text_view_get_buffer(text);
1155         gtk_text_buffer_get_end_iter(buffer, &iter);
1156
1157         if (!conv)
1158                 strncpy2(buf, str, sizeof(buf));
1159         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1160                 conv_utf8todisp(buf, sizeof(buf), str);
1161
1162         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1163                 return;
1164
1165         strcrchomp(buf);
1166
1167         gtk_text_buffer_get_end_iter(buffer, &iter);
1168         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1169                 gunichar ch;
1170
1171                 ch = g_utf8_get_char(bufp);
1172                 if (!g_unichar_isspace(ch))
1173                         break;
1174         }
1175         if (bufp > buf)
1176                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1177
1178         if (prefs_common.enable_color) {
1179                 link_color = &uri_color;
1180         }
1181         r_uri = g_new(RemoteURI, 1);
1182         r_uri->uri = g_strdup(uri);
1183         r_uri->start = gtk_text_iter_get_offset(&iter);
1184         gtk_text_buffer_insert_with_tags_by_name
1185                 (buffer, &iter, bufp, -1, "link", NULL);
1186         r_uri->end = gtk_text_iter_get_offset(&iter);
1187         r_uri->filename = NULL;
1188         textview->uri_list = g_slist_append(textview->uri_list, r_uri);
1189 }
1190
1191 void textview_clear(TextView *textview)
1192 {
1193         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1194         GtkTextBuffer *buffer;
1195         GdkWindow *window = gtk_text_view_get_window(text,
1196                                 GTK_TEXT_WINDOW_TEXT);
1197
1198         buffer = gtk_text_view_get_buffer(text);
1199         gtk_text_buffer_set_text(buffer, "", -1);
1200
1201         TEXTVIEW_STATUSBAR_POP(textview);
1202         textview_uri_list_remove_all(textview->uri_list);
1203         textview->uri_list = NULL;
1204         textview->uri_hover = NULL;
1205
1206         textview->body_pos = 0;
1207         if (textview->image)
1208                 gtk_widget_destroy(textview->image);
1209         textview->image = NULL;
1210
1211         if (textview->messageview->mainwin->cursor_count == 0) {
1212                 gdk_window_set_cursor(window, text_cursor);
1213         } else {
1214                 gdk_window_set_cursor(window, watch_cursor);
1215         }
1216 }
1217
1218 void textview_destroy(TextView *textview)
1219 {
1220         textview_uri_list_remove_all(textview->uri_list);
1221         textview->uri_list = NULL;
1222
1223         g_free(textview);
1224 }
1225
1226 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1227 {
1228         textview->show_all_headers = all_headers;
1229 }
1230
1231 #define CHANGE_TAG_FONT(tagname, font) { \
1232         tag = gtk_text_tag_table_lookup(tags, tagname); \
1233         if (tag) \
1234                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1235 }
1236
1237 void textview_set_font(TextView *textview, const gchar *codeset)
1238 {
1239         GtkTextTag *tag;
1240         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1241         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1242
1243         if (NORMAL_FONT) {
1244                 PangoFontDescription *font_desc, *bold_font_desc;
1245                 font_desc = pango_font_description_from_string
1246                                                 (NORMAL_FONT);
1247                 bold_font_desc = pango_font_description_from_string
1248                                                 (NORMAL_FONT);
1249                 if (font_desc) {
1250                         gtk_widget_modify_font(textview->text, font_desc);
1251                         CHANGE_TAG_FONT("header", font_desc);
1252                         pango_font_description_free(font_desc);
1253                 }
1254                 if (bold_font_desc) {
1255                         pango_font_description_set_weight
1256                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1257                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1258                         pango_font_description_free(bold_font_desc);
1259                 }
1260         }
1261
1262         if (prefs_common.textfont) {
1263                 PangoFontDescription *font_desc;
1264
1265                 font_desc = pango_font_description_from_string
1266                                                 (prefs_common.textfont);
1267                 if (font_desc) {
1268                         gtk_widget_modify_font(textview->text, font_desc);
1269                         pango_font_description_free(font_desc);
1270                 }
1271         }
1272         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1273                                              prefs_common.line_space / 2);
1274         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1275                                              prefs_common.line_space / 2);
1276 }
1277
1278 void textview_set_text(TextView *textview, const gchar *text)
1279 {
1280         GtkTextView *view;
1281         GtkTextBuffer *buffer;
1282
1283         g_return_if_fail(textview != NULL);
1284         g_return_if_fail(text != NULL);
1285
1286         textview_clear(textview);
1287
1288         view = GTK_TEXT_VIEW(textview->text);
1289         buffer = gtk_text_view_get_buffer(view);
1290         gtk_text_buffer_set_text(buffer, text, strlen(text));
1291 }
1292
1293 enum
1294 {
1295         H_DATE          = 0,
1296         H_FROM          = 1,
1297         H_TO            = 2,
1298         H_NEWSGROUPS    = 3,
1299         H_SUBJECT       = 4,
1300         H_CC            = 5,
1301         H_REPLY_TO      = 6,
1302         H_FOLLOWUP_TO   = 7,
1303         H_X_MAILER      = 8,
1304         H_X_NEWSREADER  = 9,
1305         H_USER_AGENT    = 10,
1306         H_ORGANIZATION  = 11,
1307 };
1308
1309 void textview_set_position(TextView *textview, gint pos)
1310 {
1311         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1312
1313         gtkut_text_view_set_position(text, pos);
1314 }
1315
1316 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1317 {
1318         gchar buf[BUFFSIZE];
1319         GPtrArray *headers, *sorted_headers;
1320         GSList *disphdr_list;
1321         Header *header;
1322         gint i;
1323
1324         g_return_val_if_fail(fp != NULL, NULL);
1325
1326         if (textview->show_all_headers)
1327                 return procheader_get_header_array_asis(fp);
1328
1329         if (!prefs_common.display_header) {
1330                 while (fgets(buf, sizeof(buf), fp) != NULL)
1331                         if (buf[0] == '\r' || buf[0] == '\n') break;
1332                 return NULL;
1333         }
1334
1335         headers = procheader_get_header_array_asis(fp);
1336
1337         sorted_headers = g_ptr_array_new();
1338
1339         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1340              disphdr_list = disphdr_list->next) {
1341                 DisplayHeaderProp *dp =
1342                         (DisplayHeaderProp *)disphdr_list->data;
1343
1344                 for (i = 0; i < headers->len; i++) {
1345                         header = g_ptr_array_index(headers, i);
1346
1347                         if (procheader_headername_equal(header->name,
1348                                                         dp->name)) {
1349                                 if (dp->hidden)
1350                                         procheader_header_free(header);
1351                                 else
1352                                         g_ptr_array_add(sorted_headers, header);
1353
1354                                 g_ptr_array_remove_index(headers, i);
1355                                 i--;
1356                         }
1357                 }
1358         }
1359
1360         if (prefs_common.show_other_header) {
1361                 for (i = 0; i < headers->len; i++) {
1362                         header = g_ptr_array_index(headers, i);
1363                         g_ptr_array_add(sorted_headers, header);
1364                 }
1365                 g_ptr_array_free(headers, TRUE);
1366         } else
1367                 procheader_header_array_destroy(headers);
1368
1369
1370         return sorted_headers;
1371 }
1372
1373 static void textview_show_face(TextView *textview)
1374 {
1375         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1376         MsgInfo *msginfo = textview->messageview->msginfo;
1377         int x = 0;
1378
1379         if (prefs_common.display_header_pane
1380         ||  !prefs_common.display_xface)
1381                 goto bail;
1382
1383         if (!msginfo->face) {
1384                 goto bail;
1385         }
1386
1387         if (textview->image)
1388                 gtk_widget_destroy(textview->image);
1389
1390         textview->image = face_get_from_header(msginfo->face);
1391         g_return_if_fail(textview->image != NULL);
1392
1393         gtk_widget_show(textview->image);
1394
1395         x = textview->text->allocation.width - WIDTH -5;
1396
1397         gtk_text_view_add_child_in_window(text, textview->image,
1398                 GTK_TEXT_WINDOW_TEXT, x, 5);
1399
1400         gtk_widget_show_all(textview->text);
1401
1402
1403         return;
1404 bail:
1405         if (textview->image)
1406                 gtk_widget_destroy(textview->image);
1407         textview->image = NULL;
1408 }
1409
1410 static void textview_show_icon(TextView *textview, const gchar *stock_id)
1411 {
1412         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1413         int x = 0;
1414
1415         if (textview->image)
1416                 gtk_widget_destroy(textview->image);
1417
1418         textview->image = gtk_image_new_from_stock(stock_id, GTK_ICON_SIZE_DIALOG);
1419         g_return_if_fail(textview->image != NULL);
1420
1421         gtk_widget_show(textview->image);
1422
1423         x = textview->text->allocation.width - WIDTH -5;
1424
1425         gtk_text_view_add_child_in_window(text, textview->image,
1426                 GTK_TEXT_WINDOW_TEXT, x, 5);
1427
1428         gtk_widget_show_all(textview->text);
1429
1430
1431         return;
1432 }
1433
1434 #if HAVE_LIBCOMPFACE
1435 static void textview_show_xface(TextView *textview)
1436 {
1437         MsgInfo *msginfo = textview->messageview->msginfo;
1438         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1439         int x = 0;
1440
1441         if (prefs_common.display_header_pane
1442         ||  !prefs_common.display_xface)
1443                 goto bail;
1444
1445         if (!msginfo)
1446                 goto bail;
1447
1448         if (msginfo->face)
1449                 return;
1450
1451         if (!msginfo->xface || strlen(msginfo->xface) < 5) {
1452                 goto bail;
1453         }
1454
1455         if (textview->image)
1456                 gtk_widget_destroy(textview->image);
1457
1458         textview->image = xface_get_from_header(msginfo->xface,
1459                                 &textview->text->style->white,
1460                                 textview->text->window);
1461         g_return_if_fail(textview->image != NULL);
1462
1463         gtk_widget_show(textview->image);
1464
1465         x = textview->text->allocation.width - WIDTH -5;
1466
1467         gtk_text_view_add_child_in_window(text, textview->image,
1468                 GTK_TEXT_WINDOW_TEXT, x, 5);
1469
1470         gtk_widget_show_all(textview->text);
1471
1472         return;
1473 bail:
1474         if (textview->image)
1475                 gtk_widget_destroy(textview->image);
1476         textview->image = NULL;
1477
1478 }
1479 #endif
1480
1481 static void textview_show_header(TextView *textview, GPtrArray *headers)
1482 {
1483         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1484         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1485         GtkTextIter iter;
1486         Header *header;
1487         gint i;
1488
1489         g_return_if_fail(headers != NULL);
1490
1491         for (i = 0; i < headers->len; i++) {
1492                 header = g_ptr_array_index(headers, i);
1493                 g_return_if_fail(header->name != NULL);
1494
1495                 gtk_text_buffer_get_end_iter (buffer, &iter);
1496                 if(prefs_common.trans_hdr == TRUE) {
1497                         gchar *hdr = g_strndup(header->name, strlen(header->name) - 1);
1498                         gchar *trans_hdr = gettext(hdr);
1499                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1500                                 &iter, trans_hdr, -1,
1501                                 "header_title", "header", NULL);
1502                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1503                                 &iter, ":", 1, "header_title", "header", NULL);
1504                         g_free(hdr);
1505                 } else {
1506                         gtk_text_buffer_insert_with_tags_by_name(buffer,
1507                                 &iter, header->name,
1508                                 -1, "header_title", "header", NULL);
1509                 }
1510                 if (header->name[strlen(header->name) - 1] != ' ')
1511                 gtk_text_buffer_insert_with_tags_by_name
1512                                 (buffer, &iter, " ", 1,
1513                                  "header_title", "header", NULL);
1514
1515                 if (procheader_headername_equal(header->name, "Subject") ||
1516                     procheader_headername_equal(header->name, "From")    ||
1517                     procheader_headername_equal(header->name, "To")      ||
1518                     procheader_headername_equal(header->name, "Cc"))
1519                         unfold_line(header->body);
1520
1521                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1522                      procheader_headername_equal(header->name,
1523                                                  "X-Newsreader")) &&
1524                     strstr(header->body, "Sylpheed-Claws") != NULL) {
1525                         gtk_text_buffer_get_end_iter (buffer, &iter);
1526                         gtk_text_buffer_insert_with_tags_by_name
1527                                 (buffer, &iter, header->body, -1,
1528                                  "header", "emphasis", NULL);
1529                 } else {
1530                         gboolean hdr =
1531                           procheader_headername_equal(header->name, "From") ||
1532                           procheader_headername_equal(header->name, "To") ||
1533                           procheader_headername_equal(header->name, "Cc") ||
1534                           procheader_headername_equal(header->name, "Bcc");
1535                         textview_make_clickable_parts(textview, "header",
1536                                                       "link", header->body,
1537                                                       hdr);
1538                 }
1539                 gtk_text_buffer_get_end_iter (buffer, &iter);
1540                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1541                                                          "header", NULL);
1542         }
1543
1544         textview_show_face(textview);
1545 #if HAVE_LIBCOMPFACE
1546         textview_show_xface(textview);
1547 #endif
1548 }
1549
1550 gboolean textview_search_string(TextView *textview, const gchar *str,
1551                                 gboolean case_sens)
1552 {
1553         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1554
1555         return gtkut_text_view_search_string(text, str, case_sens);
1556 }
1557
1558 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1559                                          gboolean case_sens)
1560 {
1561         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1562
1563         return gtkut_text_view_search_string_backward(text, str, case_sens);
1564 }
1565
1566 void textview_scroll_one_line(TextView *textview, gboolean up)
1567 {
1568         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1569         GtkAdjustment *vadj = text->vadjustment;
1570         gfloat upper;
1571
1572         if (prefs_common.enable_smooth_scroll) {
1573                 textview_smooth_scroll_one_line(textview, up);
1574                 return;
1575         }
1576
1577         if (!up) {
1578                 upper = vadj->upper - vadj->page_size;
1579                 if (vadj->value < upper) {
1580                         vadj->value += vadj->step_increment;
1581                         vadj->value = MIN(vadj->value, upper);
1582                         g_signal_emit_by_name(G_OBJECT(vadj),
1583                                               "value_changed", 0);
1584                 }
1585         } else {
1586                 if (vadj->value > 0.0) {
1587                         vadj->value -= vadj->step_increment;
1588                         vadj->value = MAX(vadj->value, 0.0);
1589                         g_signal_emit_by_name(G_OBJECT(vadj),
1590                                               "value_changed", 0);
1591                 }
1592         }
1593 }
1594
1595 gboolean textview_scroll_page(TextView *textview, gboolean up)
1596 {
1597         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1598         GtkAdjustment *vadj = text->vadjustment;
1599         gfloat upper;
1600         gfloat page_incr;
1601
1602         if (prefs_common.enable_smooth_scroll)
1603                 return textview_smooth_scroll_page(textview, up);
1604
1605         if (prefs_common.scroll_halfpage)
1606                 page_incr = vadj->page_increment / 2;
1607         else
1608                 page_incr = vadj->page_increment;
1609
1610         if (!up) {
1611                 upper = vadj->upper - vadj->page_size;
1612                 if (vadj->value < upper) {
1613                         vadj->value += page_incr;
1614                         vadj->value = MIN(vadj->value, upper);
1615                         g_signal_emit_by_name(G_OBJECT(vadj),
1616                                               "value_changed", 0);
1617                 } else
1618                         return FALSE;
1619         } else {
1620                 if (vadj->value > 0.0) {
1621                         vadj->value -= page_incr;
1622                         vadj->value = MAX(vadj->value, 0.0);
1623                         g_signal_emit_by_name(G_OBJECT(vadj),
1624                                               "value_changed", 0);
1625                 } else
1626                         return FALSE;
1627         }
1628
1629         return TRUE;
1630 }
1631
1632 static void textview_smooth_scroll_do(TextView *textview,
1633                                       gfloat old_value, gfloat last_value,
1634                                       gint step)
1635 {
1636         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1637         GtkAdjustment *vadj = text->vadjustment;
1638         gint change_value;
1639         gboolean up;
1640         gint i;
1641
1642         if (old_value < last_value) {
1643                 change_value = last_value - old_value;
1644                 up = FALSE;
1645         } else {
1646                 change_value = old_value - last_value;
1647                 up = TRUE;
1648         }
1649
1650         for (i = step; i <= change_value; i += step) {
1651                 vadj->value = old_value + (up ? -i : i);
1652                 g_signal_emit_by_name(G_OBJECT(vadj),
1653                                       "value_changed", 0);
1654         }
1655
1656         vadj->value = last_value;
1657         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1658
1659         gtk_widget_queue_draw(GTK_WIDGET(text));
1660 }
1661
1662 static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
1663 {
1664         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1665         GtkAdjustment *vadj = text->vadjustment;
1666         gfloat upper;
1667         gfloat old_value;
1668         gfloat last_value;
1669
1670         if (!up) {
1671                 upper = vadj->upper - vadj->page_size;
1672                 if (vadj->value < upper) {
1673                         old_value = vadj->value;
1674                         last_value = vadj->value + vadj->step_increment;
1675                         last_value = MIN(last_value, upper);
1676
1677                         textview_smooth_scroll_do(textview, old_value,
1678                                                   last_value,
1679                                                   prefs_common.scroll_step);
1680                 }
1681         } else {
1682                 if (vadj->value > 0.0) {
1683                         old_value = vadj->value;
1684                         last_value = vadj->value - vadj->step_increment;
1685                         last_value = MAX(last_value, 0.0);
1686
1687                         textview_smooth_scroll_do(textview, old_value,
1688                                                   last_value,
1689                                                   prefs_common.scroll_step);
1690                 }
1691         }
1692 }
1693
1694 static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
1695 {
1696         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1697         GtkAdjustment *vadj = text->vadjustment;
1698         gfloat upper;
1699         gfloat page_incr;
1700         gfloat old_value;
1701         gfloat last_value;
1702
1703         if (prefs_common.scroll_halfpage)
1704                 page_incr = vadj->page_increment / 2;
1705         else
1706                 page_incr = vadj->page_increment;
1707
1708         if (!up) {
1709                 upper = vadj->upper - vadj->page_size;
1710                 if (vadj->value < upper) {
1711                         old_value = vadj->value;
1712                         last_value = vadj->value + page_incr;
1713                         last_value = MIN(last_value, upper);
1714
1715                         textview_smooth_scroll_do(textview, old_value,
1716                                                   last_value,
1717                                                   prefs_common.scroll_step);
1718                 } else
1719                         return FALSE;
1720         } else {
1721                 if (vadj->value > 0.0) {
1722                         old_value = vadj->value;
1723                         last_value = vadj->value - page_incr;
1724                         last_value = MAX(last_value, 0.0);
1725
1726                         textview_smooth_scroll_do(textview, old_value,
1727                                                   last_value,
1728                                                   prefs_common.scroll_step);
1729                 } else
1730                         return FALSE;
1731         }
1732
1733         return TRUE;
1734 }
1735
1736 #define KEY_PRESS_EVENT_STOP() \
1737         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1738                                        "key_press_event");
1739
1740 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1741                                  TextView *textview)
1742 {
1743         SummaryView *summaryview = NULL;
1744         MessageView *messageview = textview->messageview;
1745
1746         if (!event) return FALSE;
1747         if (messageview->mainwin)
1748                 summaryview = messageview->mainwin->summaryview;
1749
1750         switch (event->keyval) {
1751         case GDK_Tab:
1752         case GDK_Home:
1753         case GDK_Left:
1754         case GDK_Up:
1755         case GDK_Right:
1756         case GDK_Down:
1757         case GDK_Page_Up:
1758         case GDK_Page_Down:
1759         case GDK_End:
1760         case GDK_Control_L:
1761         case GDK_Control_R:
1762                 return FALSE;
1763         case GDK_space:
1764                 if (summaryview)
1765                         summary_pass_key_press_event(summaryview, event);
1766                 else
1767                         textview_scroll_page
1768                                 (textview,
1769                                  (event->state &
1770                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1771                 break;
1772         case GDK_BackSpace:
1773                 textview_scroll_page(textview, TRUE);
1774                 break;
1775         case GDK_Return:
1776                 textview_scroll_one_line
1777                         (textview, (event->state &
1778                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1779                 break;
1780         case GDK_Delete:
1781                 if (summaryview)
1782                         summary_pass_key_press_event(summaryview, event);
1783                 break;
1784         case GDK_y:
1785         case GDK_t:
1786         case GDK_l:
1787         case GDK_c:
1788                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
1789                         KEY_PRESS_EVENT_STOP();
1790                         mimeview_pass_key_press_event(messageview->mimeview,
1791                                                       event);
1792                         break;
1793                 }
1794                 /* possible fall through */
1795         default:
1796                 if (summaryview &&
1797                     event->window != messageview->mainwin->window->window) {
1798                         GdkEventKey tmpev = *event;
1799
1800                         tmpev.window = messageview->mainwin->window->window;
1801                         KEY_PRESS_EVENT_STOP();
1802                         gtk_widget_event(messageview->mainwin->window,
1803                                          (GdkEvent *)&tmpev);
1804                 }
1805                 break;
1806         }
1807
1808         return TRUE;
1809 }
1810
1811 static gboolean textview_motion_notify(GtkWidget *widget,
1812                                        GdkEventMotion *event,
1813                                        TextView *textview)
1814 {
1815         textview_uri_update(textview, event->x, event->y);
1816         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
1817
1818         return FALSE;
1819 }
1820
1821 static gboolean textview_leave_notify(GtkWidget *widget,
1822                                       GdkEventCrossing *event,
1823                                       TextView *textview)
1824 {
1825         textview_uri_update(textview, -1, -1);
1826
1827         return FALSE;
1828 }
1829
1830 static gboolean textview_visibility_notify(GtkWidget *widget,
1831                                            GdkEventVisibility *event,
1832                                            TextView *textview)
1833 {
1834         gint wx, wy;
1835         GdkWindow *window;
1836
1837         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
1838                                           GTK_TEXT_WINDOW_TEXT);
1839
1840         /* check if occurred for the text window part */
1841         if (window != event->window)
1842                 return FALSE;
1843
1844         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
1845         textview_uri_update(textview, wx, wy);
1846
1847         return FALSE;
1848 }
1849
1850 void textview_cursor_wait(TextView *textview)
1851 {
1852         GdkWindow *window = gtk_text_view_get_window(
1853                         GTK_TEXT_VIEW(textview->text),
1854                         GTK_TEXT_WINDOW_TEXT);
1855         gdk_window_set_cursor(window, watch_cursor);
1856 }
1857
1858 void textview_cursor_normal(TextView *textview)
1859 {
1860         GdkWindow *window = gtk_text_view_get_window(
1861                         GTK_TEXT_VIEW(textview->text),
1862                         GTK_TEXT_WINDOW_TEXT);
1863         gdk_window_set_cursor(window, text_cursor);
1864 }
1865
1866 static void textview_uri_update(TextView *textview, gint x, gint y)
1867 {
1868         GtkTextBuffer *buffer;
1869         GtkTextIter start_iter, end_iter;
1870         RemoteURI *uri = NULL;
1871
1872         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1873
1874         if (x != -1 && y != -1) {
1875                 gint bx, by;
1876                 GtkTextIter iter;
1877                 GSList *tags;
1878                 GSList *cur;
1879
1880                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
1881                                                       GTK_TEXT_WINDOW_WIDGET,
1882                                                       x, y, &bx, &by);
1883                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
1884                                                    &iter, bx, by);
1885
1886                 tags = gtk_text_iter_get_tags(&iter);
1887                 for (cur = tags; cur != NULL; cur = cur->next) {
1888                         GtkTextTag *tag = cur->data;
1889                         char *name;
1890
1891                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
1892                         if (!strcmp(name, "link")
1893                             && textview_get_uri_range(textview, &iter, tag,
1894                                                       &start_iter, &end_iter))
1895                                 uri = textview_get_uri_from_range(textview,
1896                                                                   &iter, tag,
1897                                                                   &start_iter,
1898                                                                   &end_iter);
1899                         g_free(name);
1900
1901                         if (uri)
1902                                 break;
1903                 }
1904                 g_slist_free(tags);
1905         }
1906
1907         if (uri != textview->uri_hover) {
1908                 GdkWindow *window;
1909
1910                 if (textview->uri_hover)
1911                         gtk_text_buffer_remove_tag_by_name(buffer,
1912                                                            "link-hover",
1913                                                            &textview->uri_hover_start_iter,
1914                                                            &textview->uri_hover_end_iter);
1915
1916                 textview->uri_hover = uri;
1917                 if (uri) {
1918                         textview->uri_hover_start_iter = start_iter;
1919                         textview->uri_hover_end_iter = end_iter;
1920                 }
1921
1922                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
1923                                                   GTK_TEXT_WINDOW_TEXT);
1924                 if (textview->messageview->mainwin->cursor_count == 0) {
1925                         gdk_window_set_cursor(window, uri ? hand_cursor : text_cursor);
1926                 } else {
1927                         gdk_window_set_cursor(window, watch_cursor);
1928                 }
1929
1930                 TEXTVIEW_STATUSBAR_POP(textview);
1931
1932                 if (uri) {
1933                         char *trimmed_uri;
1934
1935                         gtk_text_buffer_apply_tag_by_name(buffer,
1936                                                           "link-hover",
1937                                                           &start_iter,
1938                                                           &end_iter);
1939
1940                         trimmed_uri = trim_string(uri->uri, 60);
1941                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
1942                         g_free(trimmed_uri);
1943                 }
1944         }
1945 }
1946
1947 static gboolean textview_get_uri_range(TextView *textview,
1948                                        GtkTextIter *iter,
1949                                        GtkTextTag *tag,
1950                                        GtkTextIter *start_iter,
1951                                        GtkTextIter *end_iter)
1952 {
1953         return get_tag_range(iter, tag, start_iter, end_iter);
1954 }
1955
1956 static RemoteURI *textview_get_uri_from_range(TextView *textview,
1957                                               GtkTextIter *iter,
1958                                               GtkTextTag *tag,
1959                                               GtkTextIter *start_iter,
1960                                               GtkTextIter *end_iter)
1961 {
1962         gint start_pos, end_pos, cur_pos;
1963         RemoteURI *uri = NULL;
1964         GSList *cur;
1965
1966         start_pos = gtk_text_iter_get_offset(start_iter);
1967         end_pos = gtk_text_iter_get_offset(end_iter);
1968         cur_pos = gtk_text_iter_get_offset(iter);
1969
1970         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
1971                 RemoteURI *uri_ = (RemoteURI *)cur->data;
1972                 if (start_pos == uri_->start &&
1973                     end_pos ==  uri_->end) {
1974                         uri = uri_;
1975                         break;
1976                 } else if (start_pos == uri_->start ||
1977                            end_pos == uri_->end) {
1978                         /* in case of contiguous links, textview_get_uri_range
1979                          * returns a broader range (start of 1st link to end
1980                          * of last link).
1981                          * In that case, correct link is the one covering
1982                          * current iter.
1983                          */
1984                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
1985                                 uri = uri_;
1986                                 break;
1987                         }
1988                 }
1989         }
1990
1991         return uri;
1992 }
1993
1994 static RemoteURI *textview_get_uri(TextView *textview,
1995                                    GtkTextIter *iter,
1996                                    GtkTextTag *tag)
1997 {
1998         GtkTextIter start_iter, end_iter;
1999         RemoteURI *uri = NULL;
2000
2001         if (textview_get_uri_range(textview, iter, tag, &start_iter,
2002                                    &end_iter))
2003                 uri = textview_get_uri_from_range(textview, iter, tag,
2004                                                   &start_iter, &end_iter);
2005
2006         return uri;
2007 }
2008
2009 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
2010                                             GdkEvent *event, GtkTextIter *iter,
2011                                             TextView *textview)
2012 {
2013         GdkEventButton *bevent;
2014         RemoteURI *uri = NULL;
2015
2016         if (!event)
2017                 return FALSE;
2018
2019         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
2020                 && event->type != GDK_MOTION_NOTIFY)
2021                 return FALSE;
2022
2023         uri = textview_get_uri(textview, iter, tag);
2024         if (!uri)
2025                 return FALSE;
2026
2027         bevent = (GdkEventButton *) event;
2028
2029         /* doubleclick: open compose / add address / browser */
2030         if ((event->type == GDK_BUTTON_PRESS && bevent->button == 1) ||
2031                 bevent->button == 2 || bevent->button == 3) {
2032                 if (uri->filename && !g_ascii_strncasecmp(uri->filename, "sc://", 5)) {
2033                         if (bevent->button == 1) {
2034                                 MimeView *mimeview =
2035                                         (textview->messageview)?
2036                                                 textview->messageview->mimeview:NULL;
2037                                 mimeview_handle_cmd(mimeview, uri->filename);
2038                         }
2039                         return TRUE;
2040                 } else if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
2041                         if (bevent->button == 3) {
2042                                 g_object_set_data(
2043                                         G_OBJECT(textview->mail_popup_menu),
2044                                         "menu_button", uri);
2045                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
2046                                                NULL, NULL, NULL, NULL,
2047                                                bevent->button, bevent->time);
2048                         } else {
2049                                 PrefsAccount *account = NULL;
2050
2051                                 if (textview->messageview && textview->messageview->msginfo &&
2052                                     textview->messageview->msginfo->folder) {
2053                                         FolderItem   *folder_item;
2054
2055                                         folder_item = textview->messageview->msginfo->folder;
2056                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
2057                                                 account = account_find_from_id(folder_item->prefs->default_account);
2058                                 }
2059                                 compose_new(account, uri->uri + 7, NULL);
2060                         }
2061                         return TRUE;
2062                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
2063                         if (bevent->button == 1 &&
2064                             textview_uri_security_check(textview, uri) == TRUE)
2065                                         open_uri(uri->uri,
2066                                                  prefs_common.uri_cmd);
2067                         else if (bevent->button == 3) {
2068                                 g_object_set_data(
2069                                         G_OBJECT(textview->link_popup_menu),
2070                                         "menu_button", uri);
2071                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
2072                                                NULL, NULL, NULL, NULL,
2073                                                bevent->button, bevent->time);
2074                         }
2075                         return TRUE;
2076                 } else {
2077                         if (bevent->button == 3) {
2078                                 g_object_set_data(
2079                                         G_OBJECT(textview->file_popup_menu),
2080                                         "menu_button", uri);
2081                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
2082                                                NULL, NULL, NULL, NULL,
2083                                                bevent->button, bevent->time);
2084                                 return TRUE;
2085                         }
2086                 }
2087         }
2088
2089         return FALSE;
2090 }
2091
2092 /*!
2093  *\brief    Check to see if a web URL has been disguised as a different
2094  *          URL (possible with HTML email).
2095  *
2096  *\param    uri The uri to check
2097  *
2098  *\param    textview The TextView the URL is contained in
2099  *
2100  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2101  *          it anyway, otherwise FALSE
2102  */
2103 static gboolean textview_uri_security_check(TextView *textview, RemoteURI *uri)
2104 {
2105         gchar *visible_str;
2106         gboolean retval = TRUE;
2107         GtkTextBuffer *buffer;
2108         GtkTextIter start, end;
2109
2110         if (is_uri_string(uri->uri) == FALSE)
2111                 return TRUE;
2112
2113         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2114
2115         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2116         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2117
2118         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2119
2120         if (visible_str == NULL)
2121                 return TRUE;
2122
2123         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2124                 gchar *uri_path;
2125                 gchar *visible_uri_path;
2126
2127                 uri_path = get_uri_path(uri->uri);
2128                 visible_uri_path = get_uri_path(visible_str);
2129                 if (path_cmp(uri_path, visible_uri_path) != 0)
2130                         retval = FALSE;
2131         }
2132
2133         if (retval == FALSE) {
2134                 gchar *msg;
2135                 AlertValue aval;
2136
2137                 msg = g_strdup_printf(_("The real URL (%s) is different from\n"
2138                                         "the apparent URL (%s).\n"
2139                                         "\n"
2140                                         "Open it anyway?"),
2141                                       uri->uri, visible_str);
2142                 aval = alertpanel_full(_("Fake URL warning"), msg,
2143                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2144                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2145                 g_free(msg);
2146                 if (aval == G_ALERTALTERNATE)
2147                         retval = TRUE;
2148         }
2149
2150         g_free(visible_str);
2151
2152         return retval;
2153 }
2154
2155 static void textview_uri_list_remove_all(GSList *uri_list)
2156 {
2157         GSList *cur;
2158
2159         for (cur = uri_list; cur != NULL; cur = cur->next) {
2160                 if (cur->data) {
2161                         g_free(((RemoteURI *)cur->data)->uri);
2162                         g_free(((RemoteURI *)cur->data)->filename);
2163                         g_free(cur->data);
2164                 }
2165         }
2166
2167         g_slist_free(uri_list);
2168 }
2169
2170 static void open_uri_cb (TextView *textview, guint action, void *data)
2171 {
2172         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2173                                            "menu_button");
2174         if (uri == NULL)
2175                 return;
2176
2177         if (textview_uri_security_check(textview, uri) == TRUE)
2178                 open_uri(uri->uri,
2179                          prefs_common.uri_cmd);
2180         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2181                           NULL);
2182 }
2183
2184 static void open_image_cb (TextView *textview, guint action, void *data)
2185 {
2186         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2187                                            "menu_button");
2188
2189         static gchar *default_cmdline = DEFAULT_IMAGE_VIEWER_CMD;
2190         gchar buf[1024];
2191         const gchar *cmd;
2192         const gchar *def_cmd;
2193         const gchar *p;
2194         gchar *filename = NULL;
2195         gchar *tmp_filename = NULL;
2196
2197         if (uri == NULL)
2198                 return;
2199
2200         if (uri->filename == NULL)
2201                 return;
2202
2203         filename = g_strdup(uri->filename);
2204
2205         if (!g_utf8_validate(filename, -1, NULL)) {
2206                 gchar *tmp = conv_filename_to_utf8(filename);
2207                 g_free(filename);
2208                 filename = tmp;
2209         }
2210
2211         subst_for_filename(filename);
2212
2213         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2214         copy_file(tmp_filename, filename, FALSE);
2215         g_free(tmp_filename);
2216
2217         cmd = prefs_common.mime_image_viewer;
2218         def_cmd = default_cmdline;
2219
2220         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2221             !strchr(p + 2, '%'))
2222                 g_snprintf(buf, sizeof(buf), cmd, filename);
2223         else {
2224                 if (cmd)
2225                         g_warning("Image viewer command line is invalid: '%s'", cmd);
2226                 if (def_cmd)
2227                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
2228                 else
2229                         return;
2230         }
2231
2232         execute_command_line(buf, TRUE);
2233
2234         g_free(filename);
2235
2236         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2237                           NULL);
2238 }
2239
2240 static void save_file_cb (TextView *textview, guint action, void *data)
2241 {
2242         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2243                                            "menu_button");
2244         gchar *filename = NULL;
2245         gchar *filepath = NULL;
2246         gchar *filedir = NULL;
2247         gchar *tmp_filename = NULL;
2248         if (uri == NULL)
2249                 return;
2250
2251         if (uri->filename == NULL)
2252                 return;
2253
2254         filename = g_strdup(uri->filename);
2255
2256         if (!g_utf8_validate(filename, -1, NULL)) {
2257                 gchar *tmp = conv_filename_to_utf8(filename);
2258                 g_free(filename);
2259                 filename = tmp;
2260         }
2261
2262         subst_for_filename(filename);
2263
2264         if (prefs_common.attach_save_dir)
2265                 filepath = g_strconcat(prefs_common.attach_save_dir,
2266                                        G_DIR_SEPARATOR_S, filename, NULL);
2267         else
2268                 filepath = g_strdup(filename);
2269
2270         g_free(filename);
2271
2272         filename = filesel_select_file_save(_("Save as"), filepath);
2273         if (!filename) {
2274                 g_free(filepath);
2275                 return;
2276         }
2277
2278         if (is_file_exist(filename)) {
2279                 AlertValue aval;
2280                 gchar *res;
2281
2282                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2283                                       filename);
2284                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2285                                   GTK_STOCK_OK, NULL);
2286                 g_free(res);
2287                 if (G_ALERTALTERNATE != aval)
2288                         return;
2289         }
2290
2291         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2292         copy_file(tmp_filename, filename, FALSE);
2293         g_free(tmp_filename);
2294
2295         filedir = g_path_get_dirname(filename);
2296         if (filedir && strcmp(filedir, ".")) {
2297                 g_free(prefs_common.attach_save_dir);
2298                 prefs_common.attach_save_dir = g_strdup(filedir);
2299         }
2300
2301         g_free(filedir);
2302         g_free(filepath);
2303
2304         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2305                           NULL);
2306 }
2307
2308 static void copy_uri_cb (TextView *textview, guint action, void *data)
2309 {
2310         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2311                                            "menu_button");
2312         if (uri == NULL)
2313                 return;
2314
2315         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2316         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2317         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2318                           NULL);
2319 }
2320
2321 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2322 {
2323         gchar *fromname, *fromaddress;
2324         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2325                                            "menu_button");
2326         if (uri == NULL)
2327                 return;
2328
2329         /* extract url */
2330         fromaddress = g_strdup(uri->uri + 7);
2331         /* Hiroyuki: please put this function in utils.c! */
2332         fromname = procheader_get_fromname(fromaddress);
2333         extract_address(fromaddress);
2334         g_message("adding from textview %s <%s>", fromname, fromaddress);
2335         /* Add to address book - Match */
2336         addressbook_add_contact( fromname, fromaddress, NULL );
2337
2338         g_free(fromaddress);
2339         g_free(fromname);
2340 }
2341
2342 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2343 {
2344         PrefsAccount *account = NULL;
2345         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2346                                            "menu_button");
2347         if (uri == NULL)
2348                 return;
2349
2350         if (textview->messageview && textview->messageview->msginfo &&
2351             textview->messageview->msginfo->folder) {
2352                 FolderItem   *folder_item;
2353
2354                 folder_item = textview->messageview->msginfo->folder;
2355                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2356                         account = account_find_from_id(folder_item->prefs->default_account);
2357         }
2358         compose_new(account, uri->uri + 7, NULL);
2359 }
2360
2361 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2362 {
2363         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2364                                            "menu_button");
2365         if (uri == NULL)
2366                 return;
2367
2368         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2369         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2370         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2371                           NULL);
2372 }
2373