src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gdk/gdk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <gtk/gtkvbox.h>
  31 #include <gtk/gtkscrolledwindow.h>
  32 #include <gtk/gtksignal.h>
  33 #include <stdio.h>
  34 #include <ctype.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #if HAVE_LIBCOMPFACE
  38 #  include <compface.h>
  39 #endif
  40
  41 #if HAVE_LIBCOMPFACE
  42 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  43 #endif
  44
  45 #include "main.h"
  46 #include "summaryview.h"
  47 #include "procheader.h"
  48 #include "prefs_common.h"
  49 #include "codeconv.h"
  50 #include "utils.h"
  51 #include "gtkutils.h"
  52 #include "procmime.h"
  53 #include "html.h"
  54 #include "enriched.h"
  55 #include "compose.h"
  56 #include "addressbook.h"
  57 #include "displayheader.h"
  58 #include "account.h"
  59 #include "mimeview.h"
  60 #include "alertpanel.h"
  61 #include "menu.h"
  62 #include "image_viewer.h"
  63 #include "filesel.h"
  64 #include "base64.h"
  65
  66 struct _RemoteURI
  67 {
  68         gchar *uri;
  69
  70         gchar *filename;
  71
  72         guint start;
  73         guint end;
  74 };
  75
  76 static GdkColor quote_colors[3] = {
  77         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  78         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  79         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  80 };
  81
  82 static GdkColor signature_color = {
  83         (gulong)0,
  84         (gushort)0x7fff,
  85         (gushort)0x7fff,
  86         (gushort)0x7fff
  87 };
  88
  89 static GdkColor uri_color = {
  90         (gulong)0,
  91         (gushort)0,
  92         (gushort)0,
  93         (gushort)0
  94 };
  95
  96 static GdkColor emphasis_color = {
  97         (gulong)0,
  98         (gushort)0,
  99         (gushort)0,
 100         (gushort)0xcfff
 101 };
 102
 103 #if 0
 104 static GdkColor error_color = {
 105         (gulong)0,
 106         (gushort)0xefff,
 107         (gushort)0,
 108         (gushort)0
 109 };
 110 #endif
 111
 112
 113 static GdkCursor *hand_cursor = NULL;
 114 static GdkCursor *text_cursor = NULL;
 115
 116 #define TEXTVIEW_STATUSBAR_PUSH(textview, str)                              \
 117 {       if (textview->messageview->statusbar)                               \
 118         gtk_statusbar_push(GTK_STATUSBAR(textview->messageview->statusbar), \
 119                            textview->messageview->statusbar_cid, str);      \
 120 }
 121
 122 #define TEXTVIEW_STATUSBAR_POP(textview)                                   \
 123 {       if (textview->messageview->statusbar)                              \
 124         gtk_statusbar_pop(GTK_STATUSBAR(textview->messageview->statusbar), \
 125                           textview->messageview->statusbar_cid);           \
 126 }
 127
 128 static void textview_show_ertf          (TextView       *textview,
 129                                          FILE           *fp,
 130                                          CodeConverter  *conv);
 131 static void textview_add_part           (TextView       *textview,
 132                                          MimeInfo       *mimeinfo);
 133 static void textview_add_parts          (TextView       *textview,
 134                                          MimeInfo       *mimeinfo);
 135 static void textview_write_body         (TextView       *textview,
 136                                          MimeInfo       *mimeinfo);
 137 static void textview_show_html          (TextView       *textview,
 138                                          FILE           *fp,
 139                                          CodeConverter  *conv);
 140
 141 static void textview_write_line         (TextView       *textview,
 142                                          const gchar    *str,
 143                                          CodeConverter  *conv);
 144 static void textview_write_link         (TextView       *textview,
 145                                          const gchar    *str,
 146                                          const gchar    *uri,
 147                                          CodeConverter  *conv);
 148
 149 static GPtrArray *textview_scan_header  (TextView       *textview,
 150                                          FILE           *fp);
 151 static void textview_show_header        (TextView       *textview,
 152                                          GPtrArray      *headers);
 153
 154 static gint textview_key_pressed                (GtkWidget      *widget,
 155                                                  GdkEventKey    *event,
 156                                                  TextView       *textview);
 157 static gboolean textview_motion_notify          (GtkWidget      *widget,
 158                                                  GdkEventMotion *motion,
 159                                                  TextView       *textview);
 160 static gboolean textview_leave_notify           (GtkWidget        *widget,
 161                                                  GdkEventCrossing *event,
 162                                                  TextView         *textview);
 163 static gboolean textview_visibility_notify      (GtkWidget      *widget,
 164                                                  GdkEventVisibility *event,
 165                                                  TextView       *textview);
 166 static void textview_uri_update                 (TextView       *textview,
 167                                                  gint           x,
 168                                                  gint           y);
 169 static gboolean textview_get_uri_range          (TextView       *textview,
 170                                                  GtkTextIter    *iter,
 171                                                  GtkTextTag     *tag,
 172                                                  GtkTextIter    *start_iter,
 173                                                  GtkTextIter    *end_iter);
 174 static RemoteURI *textview_get_uri_from_range   (TextView       *textview,
 175                                                  GtkTextIter    *iter,
 176                                                  GtkTextTag     *tag,
 177                                                  GtkTextIter    *start_iter,
 178                                                  GtkTextIter    *end_iter);
 179 static RemoteURI *textview_get_uri              (TextView       *textview,
 180                                                  GtkTextIter    *iter,
 181                                                  GtkTextTag     *tag);
 182 static gboolean textview_uri_button_pressed     (GtkTextTag     *tag,
 183                                                  GObject        *obj,
 184                                                  GdkEvent       *event,
 185                                                  GtkTextIter    *iter,
 186                                                  TextView       *textview);
 187
 188 static void textview_smooth_scroll_do           (TextView       *textview,
 189                                                  gfloat          old_value,
 190                                                  gfloat          last_value,
 191                                                  gint            step);
 192 static void textview_smooth_scroll_one_line     (TextView       *textview,
 193                                                  gboolean        up);
 194 static gboolean textview_smooth_scroll_page     (TextView       *textview,
 195                                                  gboolean        up);
 196
 197 static gboolean textview_uri_security_check     (TextView       *textview,
 198                                                  RemoteURI      *uri);
 199 static void textview_uri_list_remove_all        (GSList         *uri_list);
 200
 201 static void open_uri_cb                         (TextView       *textview,
 202                                                  guint           action,
 203                                                  void           *data);
 204 static void copy_uri_cb                         (TextView       *textview,
 205                                                  guint           action,
 206                                                  void           *data);
 207 static void add_uri_to_addrbook_cb              (TextView       *textview,
 208                                                  guint           action,
 209                                                  void           *data);
 210 static void mail_to_uri_cb                      (TextView       *textview,
 211                                                  guint           action,
 212                                                  void           *data);
 213 static void copy_mail_to_uri_cb                 (TextView       *textview,
 214                                                  guint           action,
 215                                                  void           *data);
 216 static void save_file_cb                        (TextView       *textview,
 217                                                  guint           action,
 218                                                  void           *data);
 219 static void open_image_cb                       (TextView       *textview,
 220                                                  guint           action,
 221                                                  void           *data);
 222
 223 static GtkItemFactoryEntry textview_link_popup_entries[] =
 224 {
 225         {N_("/_Open with Web browser"), NULL, open_uri_cb, 0, NULL},
 226         {N_("/Copy this _link"),        NULL, copy_uri_cb, 0, NULL},
 227 };
 228
 229 static GtkItemFactoryEntry textview_mail_popup_entries[] =
 230 {
 231         {N_("/Compose _new message"),   NULL, mail_to_uri_cb, 0, NULL},
 232         {N_("/Add to _address book"),   NULL, add_uri_to_addrbook_cb, 0, NULL},
 233         {N_("/Copy this add_ress"),     NULL, copy_mail_to_uri_cb, 0, NULL},
 234 };
 235
 236 static GtkItemFactoryEntry textview_file_popup_entries[] =
 237 {
 238         {N_("/_Open image"),            NULL, open_image_cb, 0, NULL},
 239         {N_("/_Save image..."),         NULL, save_file_cb, 0, NULL},
 240 };
 241
 242 static void scrolled_cb (GtkAdjustment *adj, TextView *textview)
 243 {
 244 #ifndef WIDTH
 245 #  define WIDTH 48
 246 #  define HEIGHT 48
 247 #endif
 248         if (textview->image) {
 249                 gint x, y, x1;
 250                 x1 = textview->text->allocation.width - WIDTH - 5;
 251                 gtk_text_view_buffer_to_window_coords(
 252                         GTK_TEXT_VIEW(textview->text),
 253                         GTK_TEXT_WINDOW_TEXT, x1, 5, &x, &y);
 254                 gtk_text_view_move_child(GTK_TEXT_VIEW(textview->text),
 255                         textview->image, x1, y);
 256         }
 257 }
 258
 259 static void textview_size_allocate_cb   (GtkWidget      *widget,
 260                                          GtkAllocation  *allocation,
 261                                          gpointer        data)
 262 {
 263         scrolled_cb(NULL, (TextView *)data);
 264 }
 265
 266 TextView *textview_create(void)
 267 {
 268         TextView *textview;
 269         GtkWidget *vbox;
 270         GtkWidget *scrolledwin;
 271         GtkWidget *text;
 272         GtkTextBuffer *buffer;
 273         GtkClipboard *clipboard;
 274         GtkItemFactory *link_popupfactory, *mail_popupfactory, *file_popupfactory;
 275         GtkWidget *link_popupmenu, *mail_popupmenu, *file_popupmenu;
 276         GtkAdjustment *adj;
 277         gint n_entries;
 278
 279         debug_print("Creating text view...\n");
 280         textview = g_new0(TextView, 1);
 281
 282         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 283         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 284                                        GTK_POLICY_AUTOMATIC,
 285                                        GTK_POLICY_AUTOMATIC);
 286         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 287                                             GTK_SHADOW_IN);
 288         gtk_widget_set_size_request
 289                 (scrolledwin, prefs_common.mainview_width, -1);
 290
 291         /* create GtkSText widgets for single-byte and multi-byte character */
 292         text = gtk_text_view_new();
 293         gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
 294         gtk_widget_show(text);
 295         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 296         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 297         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
 298         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
 299         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
 300
 301         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 302         clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 303         gtk_text_buffer_add_selection_clipboard(buffer, clipboard);
 304
 305         gtk_widget_ensure_style(text);
 306
 307         gtk_widget_ref(scrolledwin);
 308
 309         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 310
 311         g_signal_connect(G_OBJECT(text), "key-press-event",
 312                          G_CALLBACK(textview_key_pressed), textview);
 313         g_signal_connect(G_OBJECT(text), "motion-notify-event",
 314                          G_CALLBACK(textview_motion_notify), textview);
 315         g_signal_connect(G_OBJECT(text), "leave-notify-event",
 316                          G_CALLBACK(textview_leave_notify), textview);
 317         g_signal_connect(G_OBJECT(text), "visibility-notify-event",
 318                          G_CALLBACK(textview_visibility_notify), textview);
 319         adj = gtk_scrolled_window_get_vadjustment(
 320                 GTK_SCROLLED_WINDOW(scrolledwin));
 321         g_signal_connect(G_OBJECT(adj), "value-changed",
 322                          G_CALLBACK(scrolled_cb), textview);
 323         g_signal_connect(G_OBJECT(text), "size_allocate",
 324                          G_CALLBACK(textview_size_allocate_cb),
 325                          textview);
 326
 327
 328         gtk_widget_show(scrolledwin);
 329
 330         vbox = gtk_vbox_new(FALSE, 0);
 331         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 332
 333         gtk_widget_show(vbox);
 334
 335         n_entries = sizeof(textview_link_popup_entries) /
 336                 sizeof(textview_link_popup_entries[0]);
 337         link_popupmenu = menu_create_items(textview_link_popup_entries, n_entries,
 338                                       "<UriPopupMenu>", &link_popupfactory,
 339                                       textview);
 340
 341         n_entries = sizeof(textview_mail_popup_entries) /
 342                 sizeof(textview_mail_popup_entries[0]);
 343         mail_popupmenu = menu_create_items(textview_mail_popup_entries, n_entries,
 344                                       "<UriPopupMenu>", &mail_popupfactory,
 345                                       textview);
 346
 347         n_entries = sizeof(textview_file_popup_entries) /
 348                 sizeof(textview_file_popup_entries[0]);
 349         file_popupmenu = menu_create_items(textview_file_popup_entries, n_entries,
 350                                       "<FilePopupMenu>", &file_popupfactory,
 351                                       textview);
 352
 353         textview->vbox               = vbox;
 354         textview->scrolledwin        = scrolledwin;
 355         textview->text               = text;
 356         textview->uri_list           = NULL;
 357         textview->body_pos           = 0;
 358         textview->show_all_headers   = FALSE;
 359         textview->last_buttonpress   = GDK_NOTHING;
 360         textview->link_popup_menu    = link_popupmenu;
 361         textview->link_popup_factory = link_popupfactory;
 362         textview->mail_popup_menu    = mail_popupmenu;
 363         textview->mail_popup_factory = mail_popupfactory;
 364         textview->file_popup_menu    = file_popupmenu;
 365         textview->file_popup_factory = file_popupfactory;
 366         textview->image              = NULL;
 367         return textview;
 368 }
 369
 370 static void textview_create_tags(GtkTextView *text, TextView *textview)
 371 {
 372         GtkTextBuffer *buffer;
 373         GtkTextTag *tag;
 374         static PangoFontDescription *font_desc, *bold_font_desc;
 375
 376         if (!font_desc)
 377                 font_desc = pango_font_description_from_string
 378                         (NORMAL_FONT);
 379
 380         if (!bold_font_desc) {
 381                 bold_font_desc = pango_font_description_from_string
 382                         (NORMAL_FONT);
 383                 pango_font_description_set_weight
 384                         (bold_font_desc, PANGO_WEIGHT_BOLD);
 385         }
 386
 387         buffer = gtk_text_view_get_buffer(text);
 388
 389         gtk_text_buffer_create_tag(buffer, "header",
 390                                    "pixels-above-lines", 0,
 391                                    "pixels-above-lines-set", TRUE,
 392                                    "pixels-below-lines", 0,
 393                                    "pixels-below-lines-set", TRUE,
 394                                    "font-desc", font_desc,
 395                                    "left-margin", 0,
 396                                    "left-margin-set", TRUE,
 397                                    NULL);
 398         gtk_text_buffer_create_tag(buffer, "header_title",
 399                                    "font-desc", bold_font_desc,
 400                                    NULL);
 401         gtk_text_buffer_create_tag(buffer, "quote0",
 402                                    "foreground-gdk", &quote_colors[0],
 403                                    NULL);
 404         gtk_text_buffer_create_tag(buffer, "quote1",
 405                                    "foreground-gdk", &quote_colors[1],
 406                                    NULL);
 407         gtk_text_buffer_create_tag(buffer, "quote2",
 408                                    "foreground-gdk", &quote_colors[2],
 409                                    NULL);
 410         gtk_text_buffer_create_tag(buffer, "emphasis",
 411                                    "foreground-gdk", &emphasis_color,
 412                                    NULL);
 413         gtk_text_buffer_create_tag(buffer, "signature",
 414                                    "foreground-gdk", &signature_color,
 415                                    NULL);
 416         tag = gtk_text_buffer_create_tag(buffer, "link",
 417                                          "foreground-gdk", &uri_color,
 418                                          NULL);
 419         gtk_text_buffer_create_tag(buffer, "link-hover",
 420                                    "foreground-gdk", &uri_color,
 421                                    "underline", PANGO_UNDERLINE_SINGLE,
 422                                    NULL);
 423         g_signal_connect(G_OBJECT(tag), "event",
 424                          G_CALLBACK(textview_uri_button_pressed), textview);
 425  }
 426
 427 void textview_init(TextView *textview)
 428 {
 429         if (!hand_cursor)
 430                 hand_cursor = gdk_cursor_new(GDK_HAND2);
 431         if (!text_cursor)
 432                 text_cursor = gdk_cursor_new(GDK_XTERM);
 433
 434         textview_reflect_prefs(textview);
 435         textview_set_all_headers(textview, FALSE);
 436         textview_set_font(textview, NULL);
 437         textview_create_tags(GTK_TEXT_VIEW(textview->text), textview);
 438 }
 439
 440 #define CHANGE_TAG_COLOR(tagname, color) { \
 441         tag = gtk_text_tag_table_lookup(tags, tagname); \
 442         if (tag) \
 443                 g_object_set(G_OBJECT(tag), "foreground-gdk", color, NULL); \
 444 }
 445
 446 static void textview_update_message_colors(TextView *textview)
 447 {
 448         GdkColor black = {0, 0, 0, 0};
 449         GdkColor colored_emphasis = {0, 0, 0, 0xcfff};
 450         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
 451
 452         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
 453         GtkTextTag *tag = NULL;
 454
 455         if (prefs_common.enable_color) {
 456                 /* grab the quote colors, converting from an int to a GdkColor */
 457                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 458                                                &quote_colors[0]);
 459                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 460                                                &quote_colors[1]);
 461                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 462                                                &quote_colors[2]);
 463                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 464                                                &uri_color);
 465                 gtkut_convert_int_to_gdk_color(prefs_common.signature_col,
 466                                                &signature_color);
 467                 emphasis_color = colored_emphasis;
 468         } else {
 469                 quote_colors[0] = quote_colors[1] = quote_colors[2] =
 470                         uri_color = emphasis_color = signature_color = black;
 471         }
 472         CHANGE_TAG_COLOR("quote0", &quote_colors[0]);
 473         CHANGE_TAG_COLOR("quote1", &quote_colors[1]);
 474         CHANGE_TAG_COLOR("quote2", &quote_colors[2]);
 475         CHANGE_TAG_COLOR("emphasis", &emphasis_color);
 476         CHANGE_TAG_COLOR("signature", &signature_color);
 477         CHANGE_TAG_COLOR("link", &uri_color);
 478         CHANGE_TAG_COLOR("link-hover", &uri_color);
 479
 480 }
 481 #undef CHANGE_TAG_COLOR
 482
 483 void textview_reflect_prefs(TextView *textview)
 484 {
 485         textview_set_font(textview, NULL);
 486         textview_update_message_colors(textview);
 487         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(textview->text),
 488                                          prefs_common.textview_cursor_visible);
 489 }
 490
 491 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 492                            const gchar *file)
 493 {
 494         textview_clear(textview);
 495
 496         textview_add_parts(textview, mimeinfo);
 497
 498         textview_set_position(textview, 0);
 499 }
 500
 501 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 502 {
 503         g_return_if_fail(mimeinfo != NULL);
 504         g_return_if_fail(fp != NULL);
 505
 506         if ((mimeinfo->type == MIMETYPE_MULTIPART) ||
 507             ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822"))) {
 508                 textview_clear(textview);
 509                 textview_add_parts(textview, mimeinfo);
 510                 return;
 511         }
 512
 513         if (fseek(fp, mimeinfo->offset, SEEK_SET) < 0)
 514                 perror("fseek");
 515
 516         textview_clear(textview);
 517
 518         if (mimeinfo->type == MIMETYPE_MULTIPART)
 519                 textview_add_parts(textview, mimeinfo);
 520         else
 521                 textview_write_body(textview, mimeinfo);
 522 }
 523
 524 static void textview_add_part(TextView *textview, MimeInfo *mimeinfo)
 525 {
 526         GtkTextView *text;
 527         GtkTextBuffer *buffer;
 528         GtkTextIter iter, start_iter;
 529         gchar buf[BUFFSIZE];
 530         GPtrArray *headers = NULL;
 531         const gchar *name;
 532         gchar *content_type;
 533         gint charcount;
 534
 535         g_return_if_fail(mimeinfo != NULL);
 536         text = GTK_TEXT_VIEW(textview->text);
 537         buffer = gtk_text_view_get_buffer(text);
 538         charcount = gtk_text_buffer_get_char_count(buffer);
 539         gtk_text_buffer_get_end_iter(buffer, &iter);
 540
 541         if (mimeinfo->type == MIMETYPE_MULTIPART) return;
 542
 543         if ((mimeinfo->type == MIMETYPE_MESSAGE) && !g_ascii_strcasecmp(mimeinfo->subtype, "rfc822")) {
 544                 FILE *fp;
 545
 546                 fp = g_fopen(mimeinfo->data.filename, "rb");
 547                 fseek(fp, mimeinfo->offset, SEEK_SET);
 548                 headers = textview_scan_header(textview, fp);
 549                 if (headers) {
 550                         if (charcount > 0)
 551                                 gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 552                         textview_show_header(textview, headers);
 553                         procheader_header_array_destroy(headers);
 554                 }
 555                 fclose(fp);
 556                 return;
 557         }
 558
 559         name = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 560         content_type = procmime_get_content_type_str(mimeinfo->type,
 561                                                      mimeinfo->subtype);
 562         if (name == NULL)
 563                 name = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 564         if (name != NULL)
 565                 g_snprintf(buf, sizeof(buf), "\n[%s  %s (%d bytes)]\n",
 566                            name, content_type, mimeinfo->length);
 567         else
 568                 g_snprintf(buf, sizeof(buf), "\n[%s (%d bytes)]\n",
 569                            content_type, mimeinfo->length);
 570
 571         g_free(content_type);
 572
 573         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
 574         || (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
 575             mimeinfo->type != MIMETYPE_TEXT)) {
 576                 gtk_text_buffer_insert(buffer, &iter, buf, -1);
 577                 if (mimeinfo->type == MIMETYPE_IMAGE  &&
 578                     prefs_common.inline_img ) {
 579                         GdkPixbuf *pixbuf;
 580                         GError *error = NULL;
 581                         gchar *filename;
 582                         RemoteURI *uri;
 583                         gchar *uri_str;
 584
 585                         filename = procmime_get_tmp_file_name(mimeinfo);
 586                         if (procmime_get_part(filename, mimeinfo) < 0) {
 587                                 g_warning("Can't get the image file.");
 588                                 g_free(filename);
 589                                 return;
 590                         }
 591
 592                         pixbuf = gdk_pixbuf_new_from_file(filename, &error);
 593                         if (error != NULL) {
 594                                 g_warning("%s\n", error->message);
 595                                 g_error_free(error);
 596                         }
 597                         if (!pixbuf) {
 598                                 g_warning("Can't load the image.");
 599                                 g_free(filename);
 600                                 return;
 601                         }
 602
 603                         if (prefs_common.resize_img) {
 604                                 int new_width, new_height;
 605                                 GdkPixbuf *scaled;
 606                                 image_viewer_get_resized_size(gdk_pixbuf_get_width(pixbuf),
 607                                                  gdk_pixbuf_get_height(pixbuf),
 608                                                  textview->scrolledwin->allocation.width - 100,
 609                                                  gdk_pixbuf_get_height(pixbuf),
 610                                                  &new_width, &new_height);
 611                                 scaled = gdk_pixbuf_scale_simple
 612                                         (pixbuf, new_width, new_height, GDK_INTERP_BILINEAR);
 613
 614                                 g_object_unref(pixbuf);
 615                                 pixbuf = scaled;
 616                         }
 617
 618                         uri_str = g_filename_to_uri(filename, NULL, NULL);
 619                         if (uri_str) {
 620                                 uri = g_new(RemoteURI, 1);
 621                                 uri->uri = uri_str;
 622                                 uri->start = gtk_text_iter_get_offset(&iter);
 623
 624                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 625
 626                                 uri->end = uri->start + 1;
 627                                 uri->filename = procmime_get_part_file_name(mimeinfo);
 628                                 textview->uri_list =
 629                                         g_slist_append(textview->uri_list, uri);
 630
 631                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 632                                 gtk_text_buffer_get_iter_at_offset(buffer, &start_iter, uri->start);
 633                                 gtk_text_buffer_apply_tag_by_name(buffer, "link",
 634                                                 &start_iter, &iter);
 635                         } else {
 636                                 gtk_text_buffer_insert_pixbuf(buffer, &iter, pixbuf);
 637                                 gtk_text_buffer_insert(buffer, &iter, " ", 1);
 638                         }
 639
 640                         g_object_unref(pixbuf);
 641                         g_free(filename);
 642                 }
 643         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 644                 if (prefs_common.display_header && (charcount > 0))
 645                         gtk_text_buffer_insert(buffer, &iter, "\n", 1);
 646
 647                 textview_write_body(textview, mimeinfo);
 648         }
 649 }
 650
 651 static void recursive_add_parts(TextView *textview, GNode *node)
 652 {
 653         GNode * iter;
 654         MimeInfo *mimeinfo;
 655
 656         mimeinfo = (MimeInfo *) node->data;
 657
 658         textview_add_part(textview, mimeinfo);
 659
 660         if ((mimeinfo->type != MIMETYPE_MULTIPART) &&
 661             (mimeinfo->type != MIMETYPE_MESSAGE))
 662                 return;
 663
 664         if (g_ascii_strcasecmp(mimeinfo->subtype, "alternative") == 0) {
 665                 GNode * prefered_body;
 666                 int prefered_score;
 667
 668                 /*
 669                   text/plain : score 3
 670                   text/ *    : score 2
 671                   other      : score 1
 672                 */
 673                 prefered_body = NULL;
 674                 prefered_score = 0;
 675
 676                 for (iter = g_node_first_child(node) ; iter != NULL ;
 677                      iter = g_node_next_sibling(iter)) {
 678                         int score;
 679                         MimeInfo * submime;
 680
 681                         score = 1;
 682                         submime = (MimeInfo *) iter->data;
 683                         if (submime->type == MIMETYPE_TEXT)
 684                                 score = 2;
 685
 686                         if (submime->subtype != NULL) {
 687                                 if (g_ascii_strcasecmp(submime->subtype, "plain") == 0)
 688                                         score = 3;
 689                         }
 690
 691                         if (score > prefered_score) {
 692                                 prefered_score = score;
 693                                 prefered_body = iter;
 694                         }
 695                 }
 696
 697                 if (prefered_body != NULL) {
 698                         recursive_add_parts(textview, prefered_body);
 699                 }
 700         }
 701         else {
 702                 for (iter = g_node_first_child(node) ; iter != NULL ;
 703                      iter = g_node_next_sibling(iter)) {
 704                         recursive_add_parts(textview, iter);
 705                 }
 706         }
 707 }
 708
 709 static void textview_add_parts(TextView *textview, MimeInfo *mimeinfo)
 710 {
 711         g_return_if_fail(mimeinfo != NULL);
 712
 713         recursive_add_parts(textview, mimeinfo->node);
 714 }
 715
 716 #define TEXT_INSERT(str) \
 717         gtk_text_buffer_insert(buffer, &iter, str, -1)
 718
 719 void textview_show_error(TextView *textview)
 720 {
 721         GtkTextView *text;
 722         GtkTextBuffer *buffer;
 723         GtkTextIter iter;
 724
 725         textview_set_font(textview, NULL);
 726         textview_clear(textview);
 727
 728         text = GTK_TEXT_VIEW(textview->text);
 729         buffer = gtk_text_view_get_buffer(text);
 730         gtk_text_buffer_get_start_iter(buffer, &iter);
 731
 732         TEXT_INSERT(_("This message can't be displayed.\n"));
 733
 734 }
 735
 736 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 737 {
 738         GtkTextView *text;
 739         GtkTextBuffer *buffer;
 740         GtkTextIter iter;
 741
 742         if (!partinfo) return;
 743
 744         textview_set_font(textview, NULL);
 745         textview_clear(textview);
 746
 747         text = GTK_TEXT_VIEW(textview->text);
 748         buffer = gtk_text_view_get_buffer(text);
 749         gtk_text_buffer_get_start_iter(buffer, &iter);
 750
 751         TEXT_INSERT(_("The following can be performed on this part by "));
 752         TEXT_INSERT(_("right-clicking the icon or list item:\n"));
 753
 754         TEXT_INSERT(_("    To save select 'Save as...' (Shortcut key: 'y')\n"));
 755         TEXT_INSERT(_("    To display as text select 'Display as text' "));
 756         TEXT_INSERT(_("(Shortcut key: 't')\n"));
 757         TEXT_INSERT(_("    To open with an external program select 'Open' "));
 758         TEXT_INSERT(_("(Shortcut key: 'l'),\n"));
 759         TEXT_INSERT(_("    (alternately double-click, or click the middle "));
 760         TEXT_INSERT(_("mouse button),\n"));
 761         TEXT_INSERT(_("    or 'Open with...' (Shortcut key: 'o')\n"));
 762 }
 763
 764 #undef TEXT_INSERT
 765
 766 static void textview_write_body(TextView *textview, MimeInfo *mimeinfo)
 767 {
 768         FILE *tmpfp;
 769         gchar buf[BUFFSIZE];
 770         CodeConverter *conv;
 771         const gchar *charset;
 772
 773         if (textview->messageview->forced_charset)
 774                 charset = textview->messageview->forced_charset;
 775         else
 776                 charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 777
 778         textview_set_font(textview, charset);
 779
 780         conv = conv_code_converter_new(charset);
 781
 782         procmime_force_encoding(textview->messageview->forced_encoding);
 783
 784         textview->is_in_signature = FALSE;
 785
 786         procmime_decode_content(mimeinfo);
 787
 788         if (!g_ascii_strcasecmp(mimeinfo->subtype, "html") &&
 789             prefs_common.render_html) {
 790                 gchar *filename;
 791
 792                 filename = procmime_get_tmp_file_name(mimeinfo);
 793                 if (procmime_get_part(filename, mimeinfo) == 0) {
 794                         tmpfp = g_fopen(filename, "rb");
 795                         textview_show_html(textview, tmpfp, conv);
 796                         fclose(tmpfp);
 797                         g_unlink(filename);
 798                 }
 799                 g_free(filename);
 800         } else if (!g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 801                 gchar *filename;
 802
 803                 filename = procmime_get_tmp_file_name(mimeinfo);
 804                 if (procmime_get_part(filename, mimeinfo) == 0) {
 805                         tmpfp = g_fopen(filename, "rb");
 806                         textview_show_ertf(textview, tmpfp, conv);
 807                         fclose(tmpfp);
 808                         g_unlink(filename);
 809                 }
 810                 g_free(filename);
 811         } else {
 812                 tmpfp = g_fopen(mimeinfo->data.filename, "rb");
 813                 fseek(tmpfp, mimeinfo->offset, SEEK_SET);
 814                 debug_print("Viewing text content of type: %s (length: %d)\n", mimeinfo->subtype, mimeinfo->length);
 815                 while ((fgets(buf, sizeof(buf), tmpfp) != NULL) &&
 816                        (ftell(tmpfp) <= mimeinfo->offset + mimeinfo->length))
 817                         textview_write_line(textview, buf, conv);
 818                 fclose(tmpfp);
 819         }
 820
 821         conv_code_converter_destroy(conv);
 822         procmime_force_encoding(0);
 823 }
 824
 825 static void textview_show_html(TextView *textview, FILE *fp,
 826                                CodeConverter *conv)
 827 {
 828         SC_HTMLParser *parser;
 829         gchar *str;
 830
 831         parser = sc_html_parser_new(fp, conv);
 832         g_return_if_fail(parser != NULL);
 833
 834         while ((str = sc_html_parse(parser)) != NULL) {
 835                 if (parser->state == SC_HTML_HREF) {
 836                         /* first time : get and copy the URL */
 837                         if (parser->href == NULL) {
 838                                 /* ALF - the sylpheed html parser returns an empty string,
 839                                  * if still inside an <a>, but already parsed past HREF */
 840                                 str = strtok(str, " ");
 841                                 if (str) {
 842                                         parser->href = g_strdup(str);
 843                                         /* the URL may (or not) be followed by the
 844                                          * referenced text */
 845                                         str = strtok(NULL, "");
 846                                 }
 847                         }
 848                         if (str != NULL)
 849                                 textview_write_link(textview, str, parser->href, NULL);
 850                 } else
 851                         textview_write_line(textview, str, NULL);
 852         }
 853         textview_write_line(textview, "\n", NULL);
 854         sc_html_parser_destroy(parser);
 855 }
 856
 857 static void textview_show_ertf(TextView *textview, FILE *fp,
 858                                CodeConverter *conv)
 859 {
 860         ERTFParser *parser;
 861         gchar *str;
 862
 863         parser = ertf_parser_new(fp, conv);
 864         g_return_if_fail(parser != NULL);
 865
 866         while ((str = ertf_parse(parser)) != NULL) {
 867                 textview_write_line(textview, str, NULL);
 868         }
 869
 870         ertf_parser_destroy(parser);
 871 }
 872
 873 #define ADD_TXT_POS(bp_, ep_, pti_) \
 874         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
 875                 last = last->next; \
 876                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
 877                 last->next = NULL; \
 878         } else { \
 879                 g_warning("alloc error scanning URIs\n"); \
 880                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, \
 881                                                          linebuf, -1, \
 882                                                          fg_tag, NULL); \
 883                 return; \
 884         }
 885
 886 /* textview_make_clickable_parts() - colorizes clickable parts */
 887 static void textview_make_clickable_parts(TextView *textview,
 888                                           const gchar *fg_tag,
 889                                           const gchar *uri_tag,
 890                                           const gchar *linebuf,
 891                                           gboolean hdr)
 892 {
 893         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
 894         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 895         GtkTextIter iter;
 896         gchar *mybuf = g_strdup(linebuf);
 897
 898         /* parse table - in order of priority */
 899         struct table {
 900                 const gchar *needle; /* token */
 901
 902                 /* token search function */
 903                 gchar    *(*search)     (const gchar *haystack,
 904                                          const gchar *needle);
 905                 /* part parsing function */
 906                 gboolean  (*parse)      (const gchar *start,
 907                                          const gchar *scanpos,
 908                                          const gchar **bp_,
 909                                          const gchar **ep_,
 910                                          gboolean hdr);
 911                 /* part to URI function */
 912                 gchar    *(*build_uri)  (const gchar *bp,
 913                                          const gchar *ep);
 914         };
 915
 916         static struct table parser[] = {
 917                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
 918                 {"https://", strcasestr, get_uri_part,   make_uri_string},
 919                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
 920                 {"www.",     strcasestr, get_uri_part,   make_http_string},
 921                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
 922                 {"@",        strcasestr, get_email_part, make_email_string}
 923         };
 924         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
 925
 926         gint  n;
 927         const gchar *walk, *bp, *ep;
 928
 929         struct txtpos {
 930                 const gchar     *bp, *ep;       /* text position */
 931                 gint             pti;           /* index in parse table */
 932                 struct txtpos   *next;          /* next */
 933         } head = {NULL, NULL, 0,  NULL}, *last = &head;
 934
 935         if (!g_utf8_validate(linebuf, -1, NULL)) {
 936                 mybuf = g_malloc(strlen(linebuf)*2 +1);
 937                 conv_localetodisp(mybuf, strlen(linebuf)*2 +1, linebuf);
 938         }
 939
 940         gtk_text_buffer_get_end_iter(buffer, &iter);
 941
 942         /* parse for clickable parts, and build a list of begin and end positions  */
 943         for (walk = mybuf, n = 0;;) {
 944                 gint last_index = PARSE_ELEMS;
 945                 gchar *scanpos = NULL;
 946
 947                 /* FIXME: this looks phony. scanning for anything in the parse table */
 948                 for (n = 0; n < PARSE_ELEMS; n++) {
 949                         gchar *tmp;
 950
 951                         tmp = parser[n].search(walk, parser[n].needle);
 952                         if (tmp) {
 953                                 if (scanpos == NULL || tmp < scanpos) {
 954                                         scanpos = tmp;
 955                                         last_index = n;
 956                                 }
 957                         }
 958                 }
 959
 960                 if (scanpos) {
 961                         /* check if URI can be parsed */
 962                         if (parser[last_index].parse(walk, scanpos, &bp, &ep, hdr)
 963                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
 964                                         ADD_TXT_POS(bp, ep, last_index);
 965                                         walk = ep;
 966                         } else
 967                                 walk = scanpos +
 968                                         strlen(parser[last_index].needle);
 969                 } else
 970                         break;
 971         }
 972
 973         /* colorize this line */
 974         if (head.next) {
 975                 const gchar *normal_text = mybuf;
 976
 977                 /* insert URIs */
 978                 for (last = head.next; last != NULL;
 979                      normal_text = last->ep, last = last->next) {
 980                         RemoteURI *uri;
 981                         uri = g_new(RemoteURI, 1);
 982                         if (last->bp - normal_text > 0)
 983                                 gtk_text_buffer_insert_with_tags_by_name
 984                                         (buffer, &iter,
 985                                          normal_text,
 986                                          last->bp - normal_text,
 987                                          fg_tag, NULL);
 988                         uri->uri = parser[last->pti].build_uri(last->bp,
 989                                                                last->ep);
 990                         uri->start = gtk_text_iter_get_offset(&iter);
 991                         gtk_text_buffer_insert_with_tags_by_name
 992                                 (buffer, &iter, last->bp, last->ep - last->bp,
 993                                  uri_tag, fg_tag, NULL);
 994                         uri->end = gtk_text_iter_get_offset(&iter);
 995                         uri->filename = NULL;
 996                         textview->uri_list =
 997                                 g_slist_append(textview->uri_list, uri);
 998                 }
 999
1000                 if (*normal_text)
1001                         gtk_text_buffer_insert_with_tags_by_name
1002                                 (buffer, &iter, normal_text, -1, fg_tag, NULL);
1003         } else {
1004                 gtk_text_buffer_insert_with_tags_by_name
1005                         (buffer, &iter, mybuf, -1, fg_tag, NULL);
1006         }
1007         g_free(mybuf);
1008 }
1009
1010 #undef ADD_TXT_POS
1011
1012 static void textview_write_line(TextView *textview, const gchar *str,
1013                                 CodeConverter *conv)
1014 {
1015         GtkTextView *text;
1016         GtkTextBuffer *buffer;
1017         GtkTextIter iter;
1018         gchar buf[BUFFSIZE];
1019         gchar *fg_color;
1020         gint quotelevel = -1;
1021         gchar quote_tag_str[10];
1022
1023         text = GTK_TEXT_VIEW(textview->text);
1024         buffer = gtk_text_view_get_buffer(text);
1025         gtk_text_buffer_get_end_iter(buffer, &iter);
1026
1027         if (!conv)
1028                 strncpy2(buf, str, sizeof(buf));
1029         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1030                 conv_localetodisp(buf, sizeof(buf), str);
1031
1032         strcrchomp(buf);
1033         fg_color = NULL;
1034
1035         /* change color of quotation
1036            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
1037            Up to 3 levels of quotations are detected, and each
1038            level is colored using a different color. */
1039         if (prefs_common.enable_color
1040             && line_has_quote_char(buf, prefs_common.quote_chars)) {
1041                 quotelevel = get_quote_level(buf, prefs_common.quote_chars);
1042
1043                 /* set up the correct foreground color */
1044                 if (quotelevel > 2) {
1045                         /* recycle colors */
1046                         if (prefs_common.recycle_quote_colors)
1047                                 quotelevel %= 3;
1048                         else
1049                                 quotelevel = 2;
1050                 }
1051         }
1052
1053         if (quotelevel == -1)
1054                 fg_color = NULL;
1055         else {
1056                 g_snprintf(quote_tag_str, sizeof(quote_tag_str),
1057                            "quote%d", quotelevel);
1058                 fg_color = quote_tag_str;
1059         }
1060
1061         if (prefs_common.enable_color && (strcmp(buf,"-- \n") == 0 || textview->is_in_signature)) {
1062                 fg_color = "signature";
1063                 textview->is_in_signature = TRUE;
1064         }
1065
1066         textview_make_clickable_parts(textview, fg_color, "link", buf, FALSE);
1067 }
1068
1069 void textview_write_link(TextView *textview, const gchar *str,
1070                          const gchar *uri, CodeConverter *conv)
1071 {
1072         GdkColor *link_color = NULL;
1073         GtkTextView *text;
1074         GtkTextBuffer *buffer;
1075         GtkTextIter iter;
1076         gchar buf[BUFFSIZE];
1077         gchar *bufp;
1078         RemoteURI *r_uri;
1079
1080         if (!str || *str == '\0')
1081                 return;
1082         if (!uri)
1083                 return;
1084
1085         text = GTK_TEXT_VIEW(textview->text);
1086         buffer = gtk_text_view_get_buffer(text);
1087         gtk_text_buffer_get_end_iter(buffer, &iter);
1088
1089         if (!conv)
1090                 strncpy2(buf, str, sizeof(buf));
1091         else if (conv_convert(conv, buf, sizeof(buf), str) < 0)
1092                 conv_utf8todisp(buf, sizeof(buf), str);
1093
1094         if (g_utf8_validate(buf, -1, NULL) == FALSE)
1095                 return;
1096
1097         strcrchomp(buf);
1098
1099         gtk_text_buffer_get_end_iter(buffer, &iter);
1100         for (bufp = buf; *bufp != '\0'; bufp = g_utf8_next_char(bufp)) {
1101                 gunichar ch;
1102
1103                 ch = g_utf8_get_char(bufp);
1104                 if (!g_unichar_isspace(ch))
1105                         break;
1106         }
1107         if (bufp > buf)
1108                 gtk_text_buffer_insert(buffer, &iter, buf, bufp - buf);
1109
1110         if (prefs_common.enable_color) {
1111                 link_color = &uri_color;
1112         }
1113         r_uri = g_new(RemoteURI, 1);
1114         r_uri->uri = g_strdup(uri);
1115         r_uri->start = gtk_text_iter_get_offset(&iter);
1116         gtk_text_buffer_insert_with_tags_by_name
1117                 (buffer, &iter, bufp, -1, "link", NULL);
1118         r_uri->end = gtk_text_iter_get_offset(&iter);
1119         r_uri->filename = NULL;
1120         textview->uri_list = g_slist_append(textview->uri_list, r_uri);
1121 }
1122
1123 void textview_clear(TextView *textview)
1124 {
1125         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1126         GtkTextBuffer *buffer;
1127
1128         buffer = gtk_text_view_get_buffer(text);
1129         gtk_text_buffer_set_text(buffer, "", -1);
1130
1131         TEXTVIEW_STATUSBAR_POP(textview);
1132         textview_uri_list_remove_all(textview->uri_list);
1133         textview->uri_list = NULL;
1134
1135         textview->body_pos = 0;
1136         if (textview->image)
1137                 gtk_widget_destroy(textview->image);
1138         textview->image = NULL;
1139 }
1140
1141 void textview_destroy(TextView *textview)
1142 {
1143         textview_uri_list_remove_all(textview->uri_list);
1144         textview->uri_list = NULL;
1145
1146         g_free(textview);
1147 }
1148
1149 void textview_set_all_headers(TextView *textview, gboolean all_headers)
1150 {
1151         textview->show_all_headers = all_headers;
1152 }
1153
1154 #define CHANGE_TAG_FONT(tagname, font) { \
1155         tag = gtk_text_tag_table_lookup(tags, tagname); \
1156         if (tag) \
1157                 g_object_set(G_OBJECT(tag), "font-desc", font, NULL); \
1158 }
1159
1160 void textview_set_font(TextView *textview, const gchar *codeset)
1161 {
1162         GtkTextTag *tag;
1163         GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1164         GtkTextTagTable *tags = gtk_text_buffer_get_tag_table(buffer);
1165
1166         if (NORMAL_FONT) {
1167                 PangoFontDescription *font_desc, *bold_font_desc;
1168                 font_desc = pango_font_description_from_string
1169                                                 (NORMAL_FONT);
1170                 bold_font_desc = pango_font_description_from_string
1171                                                 (NORMAL_FONT);
1172                 if (font_desc) {
1173                         gtk_widget_modify_font(textview->text, font_desc);
1174                         CHANGE_TAG_FONT("header", font_desc);
1175                         pango_font_description_free(font_desc);
1176                 }
1177                 if (bold_font_desc) {
1178                         pango_font_description_set_weight
1179                                 (bold_font_desc, PANGO_WEIGHT_BOLD);
1180                         CHANGE_TAG_FONT("header_title", bold_font_desc);
1181                         pango_font_description_free(bold_font_desc);
1182                 }
1183         }
1184
1185         if (prefs_common.textfont) {
1186                 PangoFontDescription *font_desc;
1187
1188                 font_desc = pango_font_description_from_string
1189                                                 (prefs_common.textfont);
1190                 if (font_desc) {
1191                         gtk_widget_modify_font(textview->text, font_desc);
1192                         pango_font_description_free(font_desc);
1193                 }
1194         }
1195         gtk_text_view_set_pixels_above_lines(GTK_TEXT_VIEW(textview->text),
1196                                              prefs_common.line_space / 2);
1197         gtk_text_view_set_pixels_below_lines(GTK_TEXT_VIEW(textview->text),
1198                                              prefs_common.line_space / 2);
1199 }
1200
1201 void textview_set_text(TextView *textview, const gchar *text)
1202 {
1203         GtkTextView *view;
1204         GtkTextBuffer *buffer;
1205
1206         g_return_if_fail(textview != NULL);
1207         g_return_if_fail(text != NULL);
1208
1209         textview_clear(textview);
1210
1211         view = GTK_TEXT_VIEW(textview->text);
1212         buffer = gtk_text_view_get_buffer(view);
1213         gtk_text_buffer_set_text(buffer, text, strlen(text));
1214 }
1215
1216 enum
1217 {
1218         H_DATE          = 0,
1219         H_FROM          = 1,
1220         H_TO            = 2,
1221         H_NEWSGROUPS    = 3,
1222         H_SUBJECT       = 4,
1223         H_CC            = 5,
1224         H_REPLY_TO      = 6,
1225         H_FOLLOWUP_TO   = 7,
1226         H_X_MAILER      = 8,
1227         H_X_NEWSREADER  = 9,
1228         H_USER_AGENT    = 10,
1229         H_ORGANIZATION  = 11,
1230 };
1231
1232 void textview_set_position(TextView *textview, gint pos)
1233 {
1234         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1235         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1236         GtkTextIter iter;
1237
1238         gtk_text_buffer_get_iter_at_offset(buffer, &iter, pos);
1239         gtk_text_buffer_place_cursor(buffer, &iter);
1240         gtk_text_view_scroll_to_iter(text, &iter, 0.0, FALSE, 0.0, 0.0);
1241 }
1242
1243 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
1244 {
1245         gchar buf[BUFFSIZE];
1246         GPtrArray *headers, *sorted_headers;
1247         GSList *disphdr_list;
1248         Header *header;
1249         gint i;
1250
1251         g_return_val_if_fail(fp != NULL, NULL);
1252
1253         if (textview->show_all_headers)
1254                 return procheader_get_header_array_asis(fp);
1255
1256         if (!prefs_common.display_header) {
1257                 while (fgets(buf, sizeof(buf), fp) != NULL)
1258                         if (buf[0] == '\r' || buf[0] == '\n') break;
1259                 return NULL;
1260         }
1261
1262         headers = procheader_get_header_array_asis(fp);
1263
1264         sorted_headers = g_ptr_array_new();
1265
1266         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
1267              disphdr_list = disphdr_list->next) {
1268                 DisplayHeaderProp *dp =
1269                         (DisplayHeaderProp *)disphdr_list->data;
1270
1271                 for (i = 0; i < headers->len; i++) {
1272                         header = g_ptr_array_index(headers, i);
1273
1274                         if (procheader_headername_equal(header->name,
1275                                                         dp->name)) {
1276                                 if (dp->hidden)
1277                                         procheader_header_free(header);
1278                                 else
1279                                         g_ptr_array_add(sorted_headers, header);
1280
1281                                 g_ptr_array_remove_index(headers, i);
1282                                 i--;
1283                         }
1284                 }
1285         }
1286
1287         if (prefs_common.show_other_header) {
1288                 for (i = 0; i < headers->len; i++) {
1289                         header = g_ptr_array_index(headers, i);
1290                         g_ptr_array_add(sorted_headers, header);
1291                 }
1292                 g_ptr_array_free(headers, TRUE);
1293         } else
1294                 procheader_header_array_destroy(headers);
1295
1296
1297         return sorted_headers;
1298 }
1299
1300 static void textview_show_face(TextView *textview)
1301 {
1302         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1303         MsgInfo *msginfo = textview->messageview->msginfo;
1304         int x = 0;
1305
1306         if (prefs_common.display_header_pane
1307         ||  !prefs_common.display_xface)
1308                 goto bail;
1309
1310         if (!msginfo->face) {
1311                 goto bail;
1312         }
1313
1314         if (textview->image)
1315                 gtk_widget_destroy(textview->image);
1316
1317         textview->image = face_get_from_header(msginfo->face);
1318
1319         gtk_widget_show(textview->image);
1320
1321         x = textview->text->allocation.width - WIDTH -5;
1322
1323         gtk_text_view_add_child_in_window(text, textview->image,
1324                 GTK_TEXT_WINDOW_TEXT, x, 5);
1325
1326         gtk_widget_show_all(textview->text);
1327
1328
1329         return;
1330 bail:
1331         if (textview->image)
1332                 gtk_widget_destroy(textview->image);
1333         textview->image = NULL;
1334 }
1335
1336 #if HAVE_LIBCOMPFACE
1337 static void textview_show_xface(TextView *textview)
1338 {
1339         MsgInfo *msginfo = textview->messageview->msginfo;
1340         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1341         int x = 0;
1342
1343         if (prefs_common.display_header_pane
1344         ||  !prefs_common.display_xface)
1345                 goto bail;
1346
1347         if (!msginfo)
1348                 goto bail;
1349
1350         if (msginfo->face)
1351                 return;
1352
1353         if (!msginfo->xface || strlen(msginfo->xface) < 5) {
1354                 goto bail;
1355         }
1356
1357         if (textview->image)
1358                 gtk_widget_destroy(textview->image);
1359
1360         textview->image = xface_get_from_header(msginfo->xface,
1361                                 &textview->text->style->white,
1362                                 textview->text->window);
1363
1364         gtk_widget_show(textview->image);
1365
1366         x = textview->text->allocation.width - WIDTH -5;
1367
1368         gtk_text_view_add_child_in_window(text, textview->image,
1369                 GTK_TEXT_WINDOW_TEXT, x, 5);
1370
1371         gtk_widget_show_all(textview->text);
1372
1373         return;
1374 bail:
1375         if (textview->image)
1376                 gtk_widget_destroy(textview->image);
1377         textview->image = NULL;
1378
1379 }
1380 #endif
1381
1382 static void textview_show_header(TextView *textview, GPtrArray *headers)
1383 {
1384         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1385         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
1386         GtkTextIter iter;
1387         Header *header;
1388         gint i;
1389
1390         g_return_if_fail(headers != NULL);
1391
1392         for (i = 0; i < headers->len; i++) {
1393                 header = g_ptr_array_index(headers, i);
1394                 g_return_if_fail(header->name != NULL);
1395
1396                 gtk_text_buffer_get_end_iter (buffer, &iter);
1397                 gtk_text_buffer_insert_with_tags_by_name
1398                         (buffer, &iter, header->name, -1,
1399                          "header_title", "header", NULL);
1400                 if (header->name[strlen(header->name) - 1] != ' ')
1401                 gtk_text_buffer_insert_with_tags_by_name
1402                                 (buffer, &iter, " ", 1,
1403                                  "header_title", "header", NULL);
1404
1405                 if (procheader_headername_equal(header->name, "Subject") ||
1406                     procheader_headername_equal(header->name, "From")    ||
1407                     procheader_headername_equal(header->name, "To")      ||
1408                     procheader_headername_equal(header->name, "Cc"))
1409                         unfold_line(header->body);
1410
1411                 if ((procheader_headername_equal(header->name, "X-Mailer") ||
1412                      procheader_headername_equal(header->name,
1413                                                  "X-Newsreader")) &&
1414                     strstr(header->body, "Sylpheed") != NULL) {
1415                         gtk_text_buffer_get_end_iter (buffer, &iter);
1416                         gtk_text_buffer_insert_with_tags_by_name
1417                                 (buffer, &iter, header->body, -1,
1418                                  "header", "emphasis", NULL);
1419                 } else {
1420                         gboolean hdr =
1421                           procheader_headername_equal(header->name, "From") ||
1422                           procheader_headername_equal(header->name, "To") ||
1423                           procheader_headername_equal(header->name, "Cc") ||
1424                           procheader_headername_equal(header->name, "Bcc");
1425                         textview_make_clickable_parts(textview, "header",
1426                                                       "link", header->body,
1427                                                       hdr);
1428                 }
1429                 gtk_text_buffer_get_end_iter (buffer, &iter);
1430                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "\n", 1,
1431                                                          "header", NULL);
1432         }
1433
1434         textview_show_face(textview);
1435 #if HAVE_LIBCOMPFACE
1436         textview_show_xface(textview);
1437 #endif
1438 }
1439
1440 gboolean textview_search_string(TextView *textview, const gchar *str,
1441                                 gboolean case_sens)
1442 {
1443         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1444         GtkTextBuffer *buffer;
1445         GtkTextIter iter, match_pos;
1446         GtkTextMark *mark;
1447         gint len;
1448
1449         g_return_val_if_fail(str != NULL, FALSE);
1450
1451         buffer = gtk_text_view_get_buffer(text);
1452
1453         len = g_utf8_strlen(str, -1);
1454         g_return_val_if_fail(len >= 0, FALSE);
1455
1456         mark = gtk_text_buffer_get_insert(buffer);
1457         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
1458
1459         if (gtkut_text_buffer_find(buffer, &iter, str, case_sens,
1460                                    &match_pos)) {
1461                 GtkTextIter end = match_pos;
1462
1463                 gtk_text_iter_forward_chars(&end, len);
1464                 /* place "insert" at the last character */
1465                 gtk_text_buffer_select_range(buffer, &end, &match_pos);
1466                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
1467                 return TRUE;
1468         }
1469
1470         return FALSE;
1471 }
1472
1473 gboolean textview_search_string_backward(TextView *textview, const gchar *str,
1474                                          gboolean case_sens)
1475 {
1476         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1477         GtkTextBuffer *buffer;
1478         GtkTextIter iter, match_pos;
1479         GtkTextMark *mark;
1480         gint len;
1481
1482         g_return_val_if_fail(str != NULL, FALSE);
1483
1484         buffer = gtk_text_view_get_buffer(text);
1485
1486         len = g_utf8_strlen(str, -1);
1487         g_return_val_if_fail(len >= 0, FALSE);
1488
1489         mark = gtk_text_buffer_get_insert(buffer);
1490         gtk_text_buffer_get_iter_at_mark(buffer, &iter, mark);
1491
1492         if (gtkut_text_buffer_find_backward(buffer, &iter, str, case_sens,
1493                                             &match_pos)) {
1494                 GtkTextIter end = match_pos;
1495
1496                 gtk_text_iter_forward_chars(&end, len);
1497                 gtk_text_buffer_select_range(buffer, &match_pos, &end);
1498                 gtk_text_view_scroll_to_mark(text, mark, 0.0, FALSE, 0.0, 0.0);
1499                 return TRUE;
1500         }
1501
1502         return FALSE;
1503 }
1504
1505 void textview_scroll_one_line(TextView *textview, gboolean up)
1506 {
1507         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1508         GtkAdjustment *vadj = text->vadjustment;
1509         gfloat upper;
1510
1511         if (prefs_common.enable_smooth_scroll) {
1512                 textview_smooth_scroll_one_line(textview, up);
1513                 return;
1514         }
1515
1516         if (!up) {
1517                 upper = vadj->upper - vadj->page_size;
1518                 if (vadj->value < upper) {
1519                         vadj->value += vadj->step_increment;
1520                         vadj->value = MIN(vadj->value, upper);
1521                         g_signal_emit_by_name(G_OBJECT(vadj),
1522                                               "value_changed", 0);
1523                 }
1524         } else {
1525                 if (vadj->value > 0.0) {
1526                         vadj->value -= vadj->step_increment;
1527                         vadj->value = MAX(vadj->value, 0.0);
1528                         g_signal_emit_by_name(G_OBJECT(vadj),
1529                                               "value_changed", 0);
1530                 }
1531         }
1532 }
1533
1534 gboolean textview_scroll_page(TextView *textview, gboolean up)
1535 {
1536         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1537         GtkAdjustment *vadj = text->vadjustment;
1538         gfloat upper;
1539         gfloat page_incr;
1540
1541         if (prefs_common.enable_smooth_scroll)
1542                 return textview_smooth_scroll_page(textview, up);
1543
1544         if (prefs_common.scroll_halfpage)
1545                 page_incr = vadj->page_increment / 2;
1546         else
1547                 page_incr = vadj->page_increment;
1548
1549         if (!up) {
1550                 upper = vadj->upper - vadj->page_size;
1551                 if (vadj->value < upper) {
1552                         vadj->value += page_incr;
1553                         vadj->value = MIN(vadj->value, upper);
1554                         g_signal_emit_by_name(G_OBJECT(vadj),
1555                                               "value_changed", 0);
1556                 } else
1557                         return FALSE;
1558         } else {
1559                 if (vadj->value > 0.0) {
1560                         vadj->value -= page_incr;
1561                         vadj->value = MAX(vadj->value, 0.0);
1562                         g_signal_emit_by_name(G_OBJECT(vadj),
1563                                               "value_changed", 0);
1564                 } else
1565                         return FALSE;
1566         }
1567
1568         return TRUE;
1569 }
1570
1571 static void textview_smooth_scroll_do(TextView *textview,
1572                                       gfloat old_value, gfloat last_value,
1573                                       gint step)
1574 {
1575         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1576         GtkAdjustment *vadj = text->vadjustment;
1577         gint change_value;
1578         gboolean up;
1579         gint i;
1580
1581         if (old_value < last_value) {
1582                 change_value = last_value - old_value;
1583                 up = FALSE;
1584         } else {
1585                 change_value = old_value - last_value;
1586                 up = TRUE;
1587         }
1588
1589         for (i = step; i <= change_value; i += step) {
1590                 vadj->value = old_value + (up ? -i : i);
1591                 g_signal_emit_by_name(G_OBJECT(vadj),
1592                                       "value_changed", 0);
1593         }
1594
1595         vadj->value = last_value;
1596         g_signal_emit_by_name(G_OBJECT(vadj), "value_changed", 0);
1597
1598         gtk_widget_queue_draw(GTK_WIDGET(text));
1599 }
1600
1601 static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
1602 {
1603         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1604         GtkAdjustment *vadj = text->vadjustment;
1605         gfloat upper;
1606         gfloat old_value;
1607         gfloat last_value;
1608
1609         if (!up) {
1610                 upper = vadj->upper - vadj->page_size;
1611                 if (vadj->value < upper) {
1612                         old_value = vadj->value;
1613                         last_value = vadj->value + vadj->step_increment;
1614                         last_value = MIN(last_value, upper);
1615
1616                         textview_smooth_scroll_do(textview, old_value,
1617                                                   last_value,
1618                                                   prefs_common.scroll_step);
1619                 }
1620         } else {
1621                 if (vadj->value > 0.0) {
1622                         old_value = vadj->value;
1623                         last_value = vadj->value - vadj->step_increment;
1624                         last_value = MAX(last_value, 0.0);
1625
1626                         textview_smooth_scroll_do(textview, old_value,
1627                                                   last_value,
1628                                                   prefs_common.scroll_step);
1629                 }
1630         }
1631 }
1632
1633 static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
1634 {
1635         GtkTextView *text = GTK_TEXT_VIEW(textview->text);
1636         GtkAdjustment *vadj = text->vadjustment;
1637         gfloat upper;
1638         gfloat page_incr;
1639         gfloat old_value;
1640         gfloat last_value;
1641
1642         if (prefs_common.scroll_halfpage)
1643                 page_incr = vadj->page_increment / 2;
1644         else
1645                 page_incr = vadj->page_increment;
1646
1647         if (!up) {
1648                 upper = vadj->upper - vadj->page_size;
1649                 if (vadj->value < upper) {
1650                         old_value = vadj->value;
1651                         last_value = vadj->value + page_incr;
1652                         last_value = MIN(last_value, upper);
1653
1654                         textview_smooth_scroll_do(textview, old_value,
1655                                                   last_value,
1656                                                   prefs_common.scroll_step);
1657                 } else
1658                         return FALSE;
1659         } else {
1660                 if (vadj->value > 0.0) {
1661                         old_value = vadj->value;
1662                         last_value = vadj->value - page_incr;
1663                         last_value = MAX(last_value, 0.0);
1664
1665                         textview_smooth_scroll_do(textview, old_value,
1666                                                   last_value,
1667                                                   prefs_common.scroll_step);
1668                 } else
1669                         return FALSE;
1670         }
1671
1672         return TRUE;
1673 }
1674
1675 #define KEY_PRESS_EVENT_STOP() \
1676         g_signal_stop_emission_by_name(G_OBJECT(widget), \
1677                                        "key_press_event");
1678
1679 static gint textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1680                                  TextView *textview)
1681 {
1682         SummaryView *summaryview = NULL;
1683         MessageView *messageview = textview->messageview;
1684
1685         if (!event) return FALSE;
1686         if (messageview->mainwin)
1687                 summaryview = messageview->mainwin->summaryview;
1688
1689         switch (event->keyval) {
1690         case GDK_Tab:
1691         case GDK_Home:
1692         case GDK_Left:
1693         case GDK_Up:
1694         case GDK_Right:
1695         case GDK_Down:
1696         case GDK_Page_Up:
1697         case GDK_Page_Down:
1698         case GDK_End:
1699         case GDK_Control_L:
1700         case GDK_Control_R:
1701                 return FALSE;
1702         case GDK_space:
1703                 if (summaryview)
1704                         summary_pass_key_press_event(summaryview, event);
1705                 else
1706                         textview_scroll_page
1707                                 (textview,
1708                                  (event->state &
1709                                   (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1710                 break;
1711         case GDK_BackSpace:
1712                 textview_scroll_page(textview, TRUE);
1713                 break;
1714         case GDK_Return:
1715                 textview_scroll_one_line
1716                         (textview, (event->state &
1717                                     (GDK_SHIFT_MASK|GDK_MOD1_MASK)) != 0);
1718                 break;
1719         case GDK_Delete:
1720                 if (summaryview)
1721                         summary_pass_key_press_event(summaryview, event);
1722                 break;
1723         case GDK_y:
1724         case GDK_t:
1725         case GDK_l:
1726         case GDK_c:
1727                 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) == 0) {
1728                         KEY_PRESS_EVENT_STOP();
1729                         mimeview_pass_key_press_event(messageview->mimeview,
1730                                                       event);
1731                         break;
1732                 }
1733                 /* possible fall through */
1734         default:
1735                 if (summaryview &&
1736                     event->window != messageview->mainwin->window->window) {
1737                         GdkEventKey tmpev = *event;
1738
1739                         tmpev.window = messageview->mainwin->window->window;
1740                         KEY_PRESS_EVENT_STOP();
1741                         gtk_widget_event(messageview->mainwin->window,
1742                                          (GdkEvent *)&tmpev);
1743                 }
1744                 break;
1745         }
1746
1747         return TRUE;
1748 }
1749
1750 static gboolean textview_motion_notify(GtkWidget *widget,
1751                                        GdkEventMotion *event,
1752                                        TextView *textview)
1753 {
1754         textview_uri_update(textview, event->x, event->y);
1755         gdk_window_get_pointer(widget->window, NULL, NULL, NULL);
1756
1757         return FALSE;
1758 }
1759
1760 static gboolean textview_leave_notify(GtkWidget *widget,
1761                                       GdkEventCrossing *event,
1762                                       TextView *textview)
1763 {
1764         textview_uri_update(textview, -1, -1);
1765
1766         return FALSE;
1767 }
1768
1769 static gboolean textview_visibility_notify(GtkWidget *widget,
1770                                            GdkEventVisibility *event,
1771                                            TextView *textview)
1772 {
1773         gint wx, wy;
1774         GdkWindow *window;
1775
1776         window = gtk_text_view_get_window(GTK_TEXT_VIEW(widget),
1777                                           GTK_TEXT_WINDOW_TEXT);
1778
1779         /* check if occurred for the text window part */
1780         if (window != event->window)
1781                 return FALSE;
1782
1783         gdk_window_get_pointer(widget->window, &wx, &wy, NULL);
1784         textview_uri_update(textview, wx, wy);
1785
1786         return FALSE;
1787 }
1788
1789 static void textview_uri_update(TextView *textview, gint x, gint y)
1790 {
1791         GtkTextBuffer *buffer;
1792         GtkTextIter start_iter, end_iter;
1793         RemoteURI *uri = NULL;
1794
1795         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
1796
1797         if (x != -1 && y != -1) {
1798                 gint bx, by;
1799                 GtkTextIter iter;
1800                 GSList *tags;
1801                 GSList *cur;
1802
1803                 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview->text),
1804                                                       GTK_TEXT_WINDOW_WIDGET,
1805                                                       x, y, &bx, &by);
1806                 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview->text),
1807                                                    &iter, bx, by);
1808
1809                 tags = gtk_text_iter_get_tags(&iter);
1810                 for (cur = tags; cur != NULL; cur = cur->next) {
1811                         GtkTextTag *tag = cur->data;
1812                         char *name;
1813
1814                         g_object_get(G_OBJECT(tag), "name", &name, NULL);
1815                         if (!strcmp(name, "link")
1816                             && textview_get_uri_range(textview, &iter, tag,
1817                                                       &start_iter, &end_iter))
1818                                 uri = textview_get_uri_from_range(textview,
1819                                                                   &iter, tag,
1820                                                                   &start_iter,
1821                                                                   &end_iter);
1822                         g_free(name);
1823
1824                         if (uri)
1825                                 break;
1826                 }
1827                 g_slist_free(tags);
1828         }
1829
1830         if (uri != textview->uri_hover) {
1831                 GdkWindow *window;
1832
1833                 if (textview->uri_hover)
1834                         gtk_text_buffer_remove_tag_by_name(buffer,
1835                                                            "link-hover",
1836                                                            &textview->uri_hover_start_iter,
1837                                                            &textview->uri_hover_end_iter);
1838
1839                 textview->uri_hover = uri;
1840                 if (uri) {
1841                         textview->uri_hover_start_iter = start_iter;
1842                         textview->uri_hover_end_iter = end_iter;
1843                 }
1844
1845                 window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview->text),
1846                                                   GTK_TEXT_WINDOW_TEXT);
1847                 gdk_window_set_cursor(window, uri ? hand_cursor : text_cursor);
1848
1849                 TEXTVIEW_STATUSBAR_POP(textview);
1850
1851                 if (uri) {
1852                         char *trimmed_uri;
1853
1854                         gtk_text_buffer_apply_tag_by_name(buffer,
1855                                                           "link-hover",
1856                                                           &start_iter,
1857                                                           &end_iter);
1858
1859                         trimmed_uri = trim_string(uri->uri, 60);
1860                         TEXTVIEW_STATUSBAR_PUSH(textview, trimmed_uri);
1861                         g_free(trimmed_uri);
1862                 }
1863         }
1864 }
1865
1866 static gboolean textview_get_uri_range(TextView *textview,
1867                                        GtkTextIter *iter,
1868                                        GtkTextTag *tag,
1869                                        GtkTextIter *start_iter,
1870                                        GtkTextIter *end_iter)
1871 {
1872         return get_tag_range(iter, tag, start_iter, end_iter);
1873 }
1874
1875 static RemoteURI *textview_get_uri_from_range(TextView *textview,
1876                                               GtkTextIter *iter,
1877                                               GtkTextTag *tag,
1878                                               GtkTextIter *start_iter,
1879                                               GtkTextIter *end_iter)
1880 {
1881         gint start_pos, end_pos, cur_pos;
1882         RemoteURI *uri = NULL;
1883         GSList *cur;
1884
1885         start_pos = gtk_text_iter_get_offset(start_iter);
1886         end_pos = gtk_text_iter_get_offset(end_iter);
1887         cur_pos = gtk_text_iter_get_offset(iter);
1888
1889         for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
1890                 RemoteURI *uri_ = (RemoteURI *)cur->data;
1891                 if (start_pos == uri_->start &&
1892                     end_pos ==  uri_->end) {
1893                         uri = uri_;
1894                         break;
1895                 } else if (start_pos == uri_->start ||
1896                            end_pos == uri_->end) {
1897                         /* in case of contiguous links, textview_get_uri_range
1898                          * returns a broader range (start of 1st link to end
1899                          * of last link).
1900                          * In that case, correct link is the one covering
1901                          * current iter.
1902                          */
1903                         if (uri_->start <= cur_pos && cur_pos <= uri_->end) {
1904                                 uri = uri_;
1905                                 break;
1906                         }
1907                 }
1908         }
1909
1910         return uri;
1911 }
1912
1913 static RemoteURI *textview_get_uri(TextView *textview,
1914                                    GtkTextIter *iter,
1915                                    GtkTextTag *tag)
1916 {
1917         GtkTextIter start_iter, end_iter;
1918         RemoteURI *uri = NULL;
1919
1920         if (textview_get_uri_range(textview, iter, tag, &start_iter,
1921                                    &end_iter))
1922                 uri = textview_get_uri_from_range(textview, iter, tag,
1923                                                   &start_iter, &end_iter);
1924
1925         return uri;
1926 }
1927
1928 static gboolean textview_uri_button_pressed(GtkTextTag *tag, GObject *obj,
1929                                             GdkEvent *event, GtkTextIter *iter,
1930                                             TextView *textview)
1931 {
1932         GdkEventButton *bevent;
1933         RemoteURI *uri = NULL;
1934
1935         if (!event)
1936                 return FALSE;
1937
1938         if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
1939                 && event->type != GDK_MOTION_NOTIFY)
1940                 return FALSE;
1941
1942         uri = textview_get_uri(textview, iter, tag);
1943         if (!uri)
1944                 return FALSE;
1945
1946         bevent = (GdkEventButton *) event;
1947
1948         /* doubleclick: open compose / add address / browser */
1949         if ((event->type == GDK_BUTTON_PRESS && bevent->button == 1) ||
1950                 bevent->button == 2 || bevent->button == 3) {
1951                 if (!g_ascii_strncasecmp(uri->uri, "mailto:", 7)) {
1952                         if (bevent->button == 3) {
1953                                 g_object_set_data(
1954                                         G_OBJECT(textview->mail_popup_menu),
1955                                         "menu_button", uri);
1956                                 gtk_menu_popup(GTK_MENU(textview->mail_popup_menu),
1957                                                NULL, NULL, NULL, NULL,
1958                                                bevent->button, bevent->time);
1959                         } else {
1960                                 PrefsAccount *account = NULL;
1961
1962                                 if (textview->messageview && textview->messageview->msginfo &&
1963                                     textview->messageview->msginfo->folder) {
1964                                         FolderItem   *folder_item;
1965
1966                                         folder_item = textview->messageview->msginfo->folder;
1967                                         if (folder_item->prefs && folder_item->prefs->enable_default_account)
1968                                                 account = account_find_from_id(folder_item->prefs->default_account);
1969                                 }
1970                                 compose_new(account, uri->uri + 7, NULL);
1971                         }
1972                         return TRUE;
1973                 } else if (g_ascii_strncasecmp(uri->uri, "file:", 5)) {
1974                         if (bevent->button == 1 &&
1975                             textview_uri_security_check(textview, uri) == TRUE)
1976                                         open_uri(uri->uri,
1977                                                  prefs_common.uri_cmd);
1978                         else if (bevent->button == 3) {
1979                                 g_object_set_data(
1980                                         G_OBJECT(textview->link_popup_menu),
1981                                         "menu_button", uri);
1982                                 gtk_menu_popup(GTK_MENU(textview->link_popup_menu),
1983                                                NULL, NULL, NULL, NULL,
1984                                                bevent->button, bevent->time);
1985                         }
1986                         return TRUE;
1987                 } else {
1988                         if (bevent->button == 3) {
1989                                 g_object_set_data(
1990                                         G_OBJECT(textview->file_popup_menu),
1991                                         "menu_button", uri);
1992                                 gtk_menu_popup(GTK_MENU(textview->file_popup_menu),
1993                                                NULL, NULL, NULL, NULL,
1994                                                bevent->button, bevent->time);
1995                                 return TRUE;
1996                         }
1997                 }
1998         }
1999
2000         return FALSE;
2001 }
2002
2003 /*!
2004  *\brief    Check to see if a web URL has been disguised as a different
2005  *          URL (possible with HTML email).
2006  *
2007  *\param    uri The uri to check
2008  *
2009  *\param    textview The TextView the URL is contained in
2010  *
2011  *\return   gboolean TRUE if the URL is ok, or if the user chose to open
2012  *          it anyway, otherwise FALSE
2013  */
2014 static gboolean textview_uri_security_check(TextView *textview, RemoteURI *uri)
2015 {
2016         gchar *visible_str;
2017         gboolean retval = TRUE;
2018         GtkTextBuffer *buffer;
2019         GtkTextIter start, end;
2020
2021         if (is_uri_string(uri->uri) == FALSE)
2022                 return TRUE;
2023
2024         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview->text));
2025
2026         gtk_text_buffer_get_iter_at_offset(buffer, &start, uri->start);
2027         gtk_text_buffer_get_iter_at_offset(buffer, &end,   uri->end);
2028
2029         visible_str = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
2030
2031         if (visible_str == NULL)
2032                 return TRUE;
2033
2034         if (strcmp(visible_str, uri->uri) != 0 && is_uri_string(visible_str)) {
2035                 gchar *uri_path;
2036                 gchar *visible_uri_path;
2037
2038                 uri_path = get_uri_path(uri->uri);
2039                 visible_uri_path = get_uri_path(visible_str);
2040                 if (strcmp(uri_path, visible_uri_path) != 0)
2041                         retval = FALSE;
2042         }
2043
2044         if (retval == FALSE) {
2045                 gchar *msg;
2046                 AlertValue aval;
2047
2048                 msg = g_strdup_printf(_("The real URL (%s) is different from\n"
2049                                         "the apparent URL (%s).\n"
2050                                         "\n"
2051                                         "Open it anyway?"),
2052                                       uri->uri, visible_str);
2053                 aval = alertpanel_full(_("Fake URL warning"), msg,
2054                                        GTK_STOCK_CANCEL, _("_Open URL"), NULL, FALSE,
2055                                        NULL, ALERT_WARNING, G_ALERTDEFAULT);
2056                 g_free(msg);
2057                 if (aval == G_ALERTALTERNATE)
2058                         retval = TRUE;
2059         }
2060
2061         g_free(visible_str);
2062
2063         return retval;
2064 }
2065
2066 static void textview_uri_list_remove_all(GSList *uri_list)
2067 {
2068         GSList *cur;
2069
2070         for (cur = uri_list; cur != NULL; cur = cur->next) {
2071                 if (cur->data) {
2072                         g_free(((RemoteURI *)cur->data)->uri);
2073                         g_free(((RemoteURI *)cur->data)->filename);
2074                         g_free(cur->data);
2075                 }
2076         }
2077
2078         g_slist_free(uri_list);
2079 }
2080
2081 static void open_uri_cb (TextView *textview, guint action, void *data)
2082 {
2083         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2084                                            "menu_button");
2085         if (uri == NULL)
2086                 return;
2087
2088         if (textview_uri_security_check(textview, uri) == TRUE)
2089                 open_uri(uri->uri,
2090                          prefs_common.uri_cmd);
2091         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2092                           NULL);
2093 }
2094
2095 static void open_image_cb (TextView *textview, guint action, void *data)
2096 {
2097         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2098                                            "menu_button");
2099
2100         static gchar *default_cmdline = DEFAULT_IMAGE_VIEWER_CMD;
2101         gchar buf[1024];
2102         const gchar *cmd;
2103         const gchar *def_cmd;
2104         const gchar *p;
2105         gchar *filename = NULL;
2106         gchar *tmp_filename = NULL;
2107
2108         if (uri == NULL)
2109                 return;
2110
2111         if (uri->filename == NULL)
2112                 return;
2113
2114         filename = g_strdup(uri->filename);
2115
2116         if (!g_utf8_validate(filename, -1, NULL)) {
2117                 gchar *tmp = conv_filename_to_utf8(filename);
2118                 g_free(filename);
2119                 filename = tmp;
2120         }
2121
2122         subst_for_filename(filename);
2123
2124         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2125         copy_file(tmp_filename, filename, FALSE);
2126         g_free(tmp_filename);
2127
2128         cmd = prefs_common.mime_image_viewer;
2129         def_cmd = default_cmdline;
2130
2131         if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
2132             !strchr(p + 2, '%'))
2133                 g_snprintf(buf, sizeof(buf), cmd, filename);
2134         else {
2135                 if (cmd)
2136                         g_warning("Image viewer command line is invalid: '%s'", cmd);
2137                 if (def_cmd)
2138                         g_snprintf(buf, sizeof(buf), def_cmd, filename);
2139                 else
2140                         return;
2141         }
2142
2143         execute_command_line(buf, TRUE);
2144
2145         g_free(filename);
2146
2147         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2148                           NULL);
2149 }
2150
2151 static void save_file_cb (TextView *textview, guint action, void *data)
2152 {
2153         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->file_popup_menu),
2154                                            "menu_button");
2155         gchar *filename = NULL;
2156         gchar *filepath = NULL;
2157         gchar *filedir = NULL;
2158         gchar *tmp_filename = NULL;
2159         if (uri == NULL)
2160                 return;
2161
2162         if (uri->filename == NULL)
2163                 return;
2164
2165         filename = g_strdup(uri->filename);
2166
2167         if (!g_utf8_validate(filename, -1, NULL)) {
2168                 gchar *tmp = conv_filename_to_utf8(filename);
2169                 g_free(filename);
2170                 filename = tmp;
2171         }
2172
2173         subst_for_filename(filename);
2174
2175         if (prefs_common.attach_save_dir)
2176                 filepath = g_strconcat(prefs_common.attach_save_dir,
2177                                        G_DIR_SEPARATOR_S, filename, NULL);
2178         else
2179                 filepath = g_strdup(filename);
2180
2181         g_free(filename);
2182
2183         filename = filesel_select_file_save(_("Save as"), filepath);
2184         if (!filename) {
2185                 g_free(filepath);
2186                 return;
2187         }
2188
2189         if (is_file_exist(filename)) {
2190                 AlertValue aval;
2191                 gchar *res;
2192
2193                 res = g_strdup_printf(_("Overwrite existing file '%s'?"),
2194                                       filename);
2195                 aval = alertpanel(_("Overwrite"), res, GTK_STOCK_CANCEL,
2196                                   GTK_STOCK_OK, NULL);
2197                 g_free(res);
2198                 if (G_ALERTALTERNATE != aval)
2199                         return;
2200         }
2201
2202         tmp_filename = g_filename_from_uri(uri->uri, NULL, NULL);
2203         copy_file(tmp_filename, filename, FALSE);
2204         g_free(tmp_filename);
2205
2206         filedir = g_path_get_dirname(filename);
2207         if (filedir && strcmp(filedir, ".")) {
2208                 if (prefs_common.attach_save_dir)
2209                         g_free(prefs_common.attach_save_dir);
2210                 prefs_common.attach_save_dir = g_strdup(filedir);
2211         }
2212
2213         g_free(filedir);
2214         g_free(filepath);
2215
2216         g_object_set_data(G_OBJECT(textview->file_popup_menu), "menu_button",
2217                           NULL);
2218 }
2219
2220 static void copy_uri_cb (TextView *textview, guint action, void *data)
2221 {
2222         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->link_popup_menu),
2223                                            "menu_button");
2224         if (uri == NULL)
2225                 return;
2226
2227         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri, -1);
2228         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri, -1);
2229         g_object_set_data(G_OBJECT(textview->link_popup_menu), "menu_button",
2230                           NULL);
2231 }
2232
2233 static void add_uri_to_addrbook_cb (TextView *textview, guint action, void *data)
2234 {
2235         gchar *fromname, *fromaddress;
2236         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2237                                            "menu_button");
2238         if (uri == NULL)
2239                 return;
2240
2241         /* extract url */
2242         fromaddress = g_strdup(uri->uri + 7);
2243         /* Hiroyuki: please put this function in utils.c! */
2244         fromname = procheader_get_fromname(fromaddress);
2245         extract_address(fromaddress);
2246         g_message("adding from textview %s <%s>", fromname, fromaddress);
2247         /* Add to address book - Match */
2248         addressbook_add_contact( fromname, fromaddress, NULL );
2249
2250         g_free(fromaddress);
2251         g_free(fromname);
2252 }
2253
2254 static void mail_to_uri_cb (TextView *textview, guint action, void *data)
2255 {
2256         PrefsAccount *account = NULL;
2257         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2258                                            "menu_button");
2259         if (uri == NULL)
2260                 return;
2261
2262         if (textview->messageview && textview->messageview->msginfo &&
2263             textview->messageview->msginfo->folder) {
2264                 FolderItem   *folder_item;
2265
2266                 folder_item = textview->messageview->msginfo->folder;
2267                 if (folder_item->prefs && folder_item->prefs->enable_default_account)
2268                         account = account_find_from_id(folder_item->prefs->default_account);
2269         }
2270         compose_new(account, uri->uri + 7, NULL);
2271 }
2272
2273 static void copy_mail_to_uri_cb (TextView *textview, guint action, void *data)
2274 {
2275         RemoteURI *uri = g_object_get_data(G_OBJECT(textview->mail_popup_menu),
2276                                            "menu_button");
2277         if (uri == NULL)
2278                 return;
2279
2280         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), uri->uri +7, -1);
2281         gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), uri->uri +7, -1);
2282         g_object_set_data(G_OBJECT(textview->mail_popup_menu), "menu_button",
2283                           NULL);
2284 }
2285