src/textview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gdk/gdk.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <gtk/gtkvbox.h>
  30 #include <gtk/gtkscrolledwindow.h>
  31 #include <gtk/gtktext.h>
  32 #include <gtk/gtksignal.h>
  33 #include <stdio.h>
  34 #include <ctype.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37
  38 #include "intl.h"
  39 #include "main.h"
  40 #include "summaryview.h"
  41 #include "procheader.h"
  42 #include "prefs_common.h"
  43 #include "codeconv.h"
  44 #include "utils.h"
  45 #include "gtkutils.h"
  46 #include "procmime.h"
  47 #include "html.h"
  48 #include "compose.h"
  49 #include "addressbook.h"
  50 #include "displayheader.h"
  51
  52 #define FONT_LOAD(font, s) \
  53 { \
  54         gchar *fontstr, *p; \
  55  \
  56         Xstrdup_a(fontstr, s, ); \
  57         if ((p = strchr(fontstr, ',')) != NULL) *p = '\0'; \
  58         font = gdk_font_load(fontstr); \
  59 }
  60
  61 typedef struct _RemoteURI       RemoteURI;
  62
  63 struct _RemoteURI
  64 {
  65         gchar *uri;
  66
  67         guint start;
  68         guint end;
  69 };
  70
  71 static GdkColor quote_colors[3] = {
  72         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  73         {(gulong)0, (gushort)0, (gushort)0, (gushort)0},
  74         {(gulong)0, (gushort)0, (gushort)0, (gushort)0}
  75 };
  76
  77 static GdkColor uri_color = {
  78         (gulong)0,
  79         (gushort)0,
  80         (gushort)0,
  81         (gushort)0
  82 };
  83
  84 static GdkColor emphasis_color = {
  85         (gulong)0,
  86         (gushort)0,
  87         (gushort)0,
  88         (gushort)0xcfff
  89 };
  90
  91 static GdkColor error_color = {
  92         (gulong)0,
  93         (gushort)0xefff,
  94         (gushort)0,
  95         (gushort)0
  96 };
  97
  98 static GdkFont *spacingfont;
  99
 100 static void textview_show_html          (TextView       *textview,
 101                                          FILE           *fp,
 102                                          CodeConverter  *conv);
 103 static void textview_write_line         (TextView       *textview,
 104                                          const gchar    *str,
 105                                          CodeConverter  *conv);
 106 static GPtrArray *textview_scan_header  (TextView       *textview,
 107                                          FILE           *fp);
 108 static void textview_show_header        (TextView       *textview,
 109                                          GPtrArray      *headers);
 110
 111 static void textview_key_pressed        (GtkWidget      *widget,
 112                                          GdkEventKey    *event,
 113                                          TextView       *textview);
 114 static void textview_button_pressed     (GtkWidget      *widget,
 115                                          GdkEventButton *event,
 116                                          TextView       *textview);
 117
 118 static void textview_uri_list_remove_all(GSList         *uri_list);
 119
 120 static void textview_smooth_scroll_do           (TextView       *textview,
 121                                                  gfloat          old_value,
 122                                                  gfloat          last_value,
 123                                                  gint            step);
 124 static void textview_smooth_scroll_one_line     (TextView       *textview,
 125                                                  gboolean        up);
 126 static gboolean textview_smooth_scroll_page     (TextView       *textview,
 127                                                  gboolean        up);
 128
 129
 130 TextView *textview_create(void)
 131 {
 132         TextView *textview;
 133         GtkWidget *vbox;
 134         GtkWidget *scrolledwin_sb;
 135         GtkWidget *scrolledwin_mb;
 136         GtkWidget *text_sb;
 137         GtkWidget *text_mb;
 138
 139         debug_print(_("Creating text view...\n"));
 140         textview = g_new0(TextView, 1);
 141
 142         scrolledwin_sb = gtk_scrolled_window_new(NULL, NULL);
 143         scrolledwin_mb = gtk_scrolled_window_new(NULL, NULL);
 144         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin_sb),
 145                                        GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
 146         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin_mb),
 147                                        GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
 148         gtk_widget_set_usize(scrolledwin_sb, prefs_common.mainview_width, -1);
 149         gtk_widget_set_usize(scrolledwin_mb, prefs_common.mainview_width, -1);
 150
 151         /* create GtkText widgets for single-byte and multi-byte character */
 152         text_sb = gtk_text_new(NULL, NULL);
 153         text_mb = gtk_text_new(NULL, NULL);
 154         GTK_TEXT(text_sb)->default_tab_width = 8;
 155         GTK_TEXT(text_mb)->default_tab_width = 8;
 156         gtk_widget_show(text_sb);
 157         gtk_widget_show(text_mb);
 158         gtk_text_set_word_wrap(GTK_TEXT(text_sb), TRUE);
 159         gtk_text_set_word_wrap(GTK_TEXT(text_mb), TRUE);
 160         gtk_widget_ensure_style(text_sb);
 161         gtk_widget_ensure_style(text_mb);
 162         if (text_sb->style && text_sb->style->font->type == GDK_FONT_FONTSET) {
 163                 GtkStyle *style;
 164
 165                 style = gtk_style_copy(text_sb->style);
 166                 gdk_font_unref(style->font);
 167                 FONT_LOAD(style->font, NORMAL_FONT);
 168                 gtk_widget_set_style(text_sb, style);
 169         }
 170         if (text_mb->style && text_mb->style->font->type == GDK_FONT_FONT) {
 171                 GtkStyle *style;
 172
 173                 style = gtk_style_copy(text_mb->style);
 174                 gdk_font_unref(style->font);
 175                 style->font = gdk_fontset_load(NORMAL_FONT);
 176                 gtk_widget_set_style(text_mb, style);
 177         }
 178         gtk_widget_ref(scrolledwin_sb);
 179         gtk_widget_ref(scrolledwin_mb);
 180
 181         gtk_container_add(GTK_CONTAINER(scrolledwin_sb), text_sb);
 182         gtk_container_add(GTK_CONTAINER(scrolledwin_mb), text_mb);
 183         gtk_signal_connect(GTK_OBJECT(text_sb), "key_press_event",
 184                            GTK_SIGNAL_FUNC(textview_key_pressed),
 185                            textview);
 186         gtk_signal_connect(GTK_OBJECT(text_sb), "button_press_event",
 187                            GTK_SIGNAL_FUNC(textview_button_pressed),
 188                            textview);
 189         gtk_signal_connect(GTK_OBJECT(text_mb), "key_press_event",
 190                            GTK_SIGNAL_FUNC(textview_key_pressed),
 191                            textview);
 192         gtk_signal_connect(GTK_OBJECT(text_mb), "button_press_event",
 193                            GTK_SIGNAL_FUNC(textview_button_pressed),
 194                            textview);
 195
 196         gtk_widget_show(scrolledwin_sb);
 197         gtk_widget_show(scrolledwin_mb);
 198
 199         vbox = gtk_vbox_new(FALSE, 0);
 200         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin_sb, TRUE, TRUE, 0);
 201
 202         textview->vbox           = vbox;
 203         textview->scrolledwin    = scrolledwin_sb;
 204         textview->scrolledwin_sb = scrolledwin_sb;
 205         textview->scrolledwin_mb = scrolledwin_mb;
 206         textview->text           = text_sb;
 207         textview->text_sb        = text_sb;
 208         textview->text_mb        = text_mb;
 209         textview->text_is_mb     = FALSE;
 210         textview->uri_list       = NULL;
 211         textview->body_pos       = 0;
 212
 213         return textview;
 214 }
 215
 216 void textview_init(TextView *textview)
 217 {
 218         gtkut_widget_disable_theme_engine(textview->text_sb);
 219         gtkut_widget_disable_theme_engine(textview->text_mb);
 220         textview_update_message_colors();
 221         textview_set_font(textview, NULL);
 222 }
 223
 224 void textview_update_message_colors(void)
 225 {
 226         GdkColor black = {0, 0, 0, 0};
 227
 228         if (prefs_common.enable_color) {
 229                 /* grab the quote colors, converting from an int to a GdkColor */
 230                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
 231                                                &quote_colors[0]);
 232                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
 233                                                &quote_colors[1]);
 234                 gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
 235                                                &quote_colors[2]);
 236                 gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
 237                                                &uri_color);
 238         } else {
 239                 quote_colors[0] = quote_colors[1] = quote_colors[2] =
 240                         uri_color = emphasis_color = black;
 241         }
 242 }
 243
 244 void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
 245                            const gchar *file)
 246 {
 247         FILE *fp;
 248
 249         if ((fp = fopen(file, "r")) == NULL) {
 250                 FILE_OP_ERROR(file, "fopen");
 251                 return;
 252         }
 253
 254         textview_show_part(textview, mimeinfo, fp);
 255
 256         fclose(fp);
 257 }
 258
 259 void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
 260 {
 261         GtkText *text;
 262         gchar buf[BUFFSIZE];
 263         const gchar *boundary = NULL;
 264         gint boundary_len = 0;
 265         const gchar *charset = NULL;
 266         FILE *tmpfp;
 267         GPtrArray *headers = NULL;
 268         CodeConverter *conv;
 269
 270         g_return_if_fail(mimeinfo != NULL);
 271         g_return_if_fail(fp != NULL);
 272
 273         if (mimeinfo->mime_type == MIME_MULTIPART) {
 274                 if (mimeinfo->sub) {
 275                         mimeinfo = mimeinfo->sub;
 276                         if (fseek(fp, mimeinfo->fpos, SEEK_SET) < 0) {
 277                                 perror("fseek");
 278                                 return;
 279                         }
 280                 } else
 281                         return;
 282         }
 283         if (mimeinfo->parent && mimeinfo->parent->boundary) {
 284                 boundary = mimeinfo->parent->boundary;
 285                 boundary_len = strlen(boundary);
 286         }
 287
 288         if (!boundary && mimeinfo->mime_type == MIME_TEXT) {
 289                 if (fseek(fp, mimeinfo->fpos, SEEK_SET) < 0)
 290                         perror("fseek");
 291                 headers = textview_scan_header(textview, fp);
 292         } else {
 293                 if (mimeinfo->mime_type == MIME_TEXT && mimeinfo->parent) {
 294                         glong fpos;
 295
 296                         if ((fpos = ftell(fp)) < 0)
 297                                 perror("ftell");
 298                         else if (fseek(fp, mimeinfo->parent->fpos, SEEK_SET)
 299                                  < 0)
 300                                 perror("fseek");
 301                         else {
 302                                 headers = textview_scan_header(textview, fp);
 303                                 if (fseek(fp, fpos, SEEK_SET) < 0)
 304                                         perror("fseek");
 305                         }
 306                 }
 307                 while (fgets(buf, sizeof(buf), fp) != NULL)
 308                         if (buf[0] == '\r' || buf[0] == '\n') break;
 309         }
 310
 311         /* display attached RFC822 single text message */
 312         if (mimeinfo->parent && mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
 313                 if (headers) procheader_header_array_destroy(headers);
 314                 if (!mimeinfo->sub || mimeinfo->sub->children) return;
 315                 headers = textview_scan_header(textview, fp);
 316                 mimeinfo = mimeinfo->sub;
 317         } else if (!mimeinfo->parent &&
 318                    mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
 319                 if (headers) procheader_header_array_destroy(headers);
 320                 if (!mimeinfo->sub) return;
 321                 headers = textview_scan_header(textview, fp);
 322                 mimeinfo = mimeinfo->sub;
 323         }
 324
 325         if (prefs_common.force_charset)
 326                 charset = prefs_common.force_charset;
 327         else if (mimeinfo->charset)
 328                 charset = mimeinfo->charset;
 329         textview_set_font(textview, charset);
 330
 331         conv = conv_code_converter_new(charset);
 332
 333         textview_clear(textview);
 334         text = GTK_TEXT(textview->text);
 335         gtk_text_freeze(text);
 336
 337         textview->body_pos = 0;
 338
 339         if (headers) {
 340                 textview_show_header(textview, headers);
 341                 procheader_header_array_destroy(headers);
 342         }
 343
 344         tmpfp = procmime_decode_content(NULL, fp, mimeinfo);
 345         if (tmpfp) {
 346                 if (mimeinfo->mime_type == MIME_TEXT_HTML)
 347                         textview_show_html(textview, tmpfp, conv);
 348                 else
 349                         while (fgets(buf, sizeof(buf), tmpfp) != NULL)
 350                                 textview_write_line(textview, buf, conv);
 351                 fclose(tmpfp);
 352         }
 353
 354         conv_code_converter_destroy(conv);
 355
 356         gtk_text_thaw(text);
 357 }
 358
 359 #define TEXT_INSERT(str) \
 360         gtk_text_insert(text, textview->msgfont, NULL, NULL, str, -1)
 361
 362 void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
 363 {
 364         GtkText *text;
 365
 366         if (!partinfo) return;
 367
 368         textview_set_font(textview, NULL);
 369         text = GTK_TEXT(textview->text);
 370         textview_clear(textview);
 371
 372         gtk_text_freeze(text);
 373
 374         TEXT_INSERT(_("To save this part, pop up the context menu with "));
 375         TEXT_INSERT(_("right click and select `Save as...', "));
 376         TEXT_INSERT(_("or press `y' key.\n\n"));
 377
 378         TEXT_INSERT(_("To display this part as a text message, select "));
 379         TEXT_INSERT(_("`Display as text', or press `t' key.\n\n"));
 380
 381         TEXT_INSERT(_("To open this part with external program, select "));
 382         TEXT_INSERT(_("`Open' or `Open with...', "));
 383         TEXT_INSERT(_("or double-click, or click the center button, "));
 384         TEXT_INSERT(_("or press `l' key."));
 385
 386         gtk_text_thaw(text);
 387 }
 388
 389 #if USE_GPGME
 390 void textview_show_signature_part(TextView *textview, MimeInfo *partinfo)
 391 {
 392         GtkText *text;
 393
 394         if (!partinfo) return;
 395
 396         textview_set_font(textview, NULL);
 397         text = GTK_TEXT(textview->text);
 398         textview_clear(textview);
 399
 400         gtk_text_freeze(text);
 401
 402         if (partinfo->sigstatus_full == NULL) {
 403                 TEXT_INSERT(_("This signature has not been checked yet.\n"));
 404                 TEXT_INSERT(_("To check it, pop up the context menu with\n"));
 405                 TEXT_INSERT(_("right click and select `Check signature'.\n"));
 406         } else {
 407                 TEXT_INSERT(partinfo->sigstatus_full);
 408         }
 409
 410         gtk_text_thaw(text);
 411 }
 412 #endif /* USE_GPGME */
 413
 414 #undef TEXT_INSERT
 415
 416 static void textview_show_html(TextView *textview, FILE *fp,
 417                                CodeConverter *conv)
 418 {
 419         HTMLParser *parser;
 420         gchar *str;
 421
 422         parser = html_parser_new(fp, conv);
 423         g_return_if_fail(parser != NULL);
 424
 425         while ((str = html_parse(parser)) != NULL) {
 426                 textview_write_line(textview, str, NULL);
 427         }
 428         html_parser_destroy(parser);
 429 }
 430
 431 /* get_uri_part() - retrieves a URI starting from scanpos.
 432                     Returns TRUE if succesful */
 433 static gboolean get_uri_part(const gchar *start, const gchar *scanpos,
 434                              const gchar **bp, const gchar **ep)
 435 {
 436         const gchar *ep_;
 437
 438         g_return_val_if_fail(start != NULL, FALSE);
 439         g_return_val_if_fail(scanpos != NULL, FALSE);
 440         g_return_val_if_fail(bp != NULL, FALSE);
 441         g_return_val_if_fail(ep != NULL, FALSE);
 442
 443         *bp = scanpos;
 444
 445         /* find end point of URI */
 446         for (ep_ = scanpos; *ep_ != '\0'; ep_++) {
 447                 if (!isgraph(*ep_) || !isascii(*ep_) || strchr("()<>\"", *ep_))
 448                         break;
 449         }
 450
 451         /* no punctuation at end of string */
 452
 453         /* FIXME: this stripping of trailing punctuations may bite with other URIs.
 454          * should pass some URI type to this function and decide on that whether
 455          * to perform punctuation stripping */
 456
 457 #define IS_REAL_PUNCT(ch) \
 458         (ispunct(ch) && ((ch) != '/'))
 459
 460         for (; ep_ - 1 > scanpos + 1 && IS_REAL_PUNCT(*(ep_ - 1)); ep_--)
 461                 ;
 462
 463 #undef IS_REAL_PUNCT
 464
 465         *ep = ep_;
 466
 467         return TRUE;
 468 }
 469
 470 static gchar *make_uri_string(const gchar *bp, const gchar *ep)
 471 {
 472         return g_strndup(bp, ep - bp);
 473 }
 474
 475 /* valid mail address characters */
 476 #define IS_RFC822_CHAR(ch) \
 477         (isascii(ch) && \
 478          (ch) > 32   && \
 479          (ch) != 127 && \
 480          !isspace(ch) && \
 481          !strchr("()<>\"", (ch)))
 482
 483 #define IS_QUOTE(ch) ((ch) == '\'' || (ch) == '"')
 484
 485 /* get_email_part() - retrieves an email address. Returns TRUE if succesful */
 486 static gboolean get_email_part(const gchar *start, const gchar *scanpos,
 487                                const gchar **bp, const gchar **ep)
 488 {
 489         /* more complex than the uri part because we need to scan back and forward starting from
 490          * the scan position. */
 491         gboolean result = FALSE;
 492         const gchar *bp_ = NULL;
 493         const gchar *ep_ = NULL;
 494
 495         /* the informative part of the email address (describing the name
 496          * of the email address owner) may contain quoted parts. the
 497          * closure stack stores the last encountered quotes. */
 498         gchar closure_stack[128];
 499         gchar *ptr = closure_stack;
 500
 501         g_return_val_if_fail(start != NULL, FALSE);
 502         g_return_val_if_fail(scanpos != NULL, FALSE);
 503         g_return_val_if_fail(bp != NULL, FALSE);
 504         g_return_val_if_fail(ep != NULL, FALSE);
 505
 506         /* scan start of address */
 507         for (bp_ = scanpos - 1; bp_ >= start && IS_RFC822_CHAR(*bp_); bp_--)
 508                 ;
 509
 510         /* TODO: should start with an alnum? */
 511         bp_++;
 512         for (; bp_ < scanpos && !isalnum(*bp_); bp_++)
 513                 ;
 514
 515         if (bp_ != scanpos) {
 516                 /* scan end of address */
 517                 for (ep_ = scanpos + 1; *ep_ && IS_RFC822_CHAR(*ep_); ep_++)
 518                         ;
 519
 520                 /* TODO: really should terminate with an alnum? */
 521                 for (; ep_ > scanpos  && !isalnum(*ep_); --ep_)
 522                         ;
 523                 ep_++;
 524
 525                 if (ep_ > scanpos + 1) {
 526                         *ep = ep_;
 527                         *bp = bp_;
 528                         result = TRUE;
 529                 }
 530         }
 531
 532         if (!result) return FALSE;
 533
 534         /* skip if it's between quotes "'alfons@proteus.demon.nl'" <alfons@proteus.demon.nl> */
 535         if (bp_ - 1 > start && IS_QUOTE(*(bp_ - 1)) && IS_QUOTE(*ep_))
 536                 return FALSE;
 537
 538         /* see if this is <bracketed>; in this case we also scan for the informative part. */
 539         if (bp_ - 1 <= start || *(bp_ - 1) != '<' || *ep_ != '>')
 540                 return TRUE;
 541
 542 #define FULL_STACK()    ((size_t) (ptr - closure_stack) >= sizeof closure_stack)
 543 #define IN_STACK()      (ptr > closure_stack)
 544 /* has underrun check */
 545 #define POP_STACK()     if(IN_STACK()) --ptr
 546 /* has overrun check */
 547 #define PUSH_STACK(c)   if(!FULL_STACK()) *ptr++ = (c); else return TRUE
 548 /* has underrun check */
 549 #define PEEK_STACK()    (IN_STACK() ? *(ptr - 1) : 0)
 550
 551         ep_++;
 552
 553         /* scan for the informative part. */
 554         for (bp_ -= 2; bp_ >= start; bp_--) {
 555                 /* if closure on the stack keep scanning */
 556                 if (PEEK_STACK() == *bp_) {
 557                         POP_STACK();
 558                         continue;
 559                 }
 560                 if (*bp_ == '\'' || *bp_ == '"') {
 561                         PUSH_STACK(*bp_);
 562                         continue;
 563                 }
 564
 565                 /* if nothing in the closure stack, do the special conditions
 566                  * the following if..else expression simply checks whether
 567                  * a token is acceptable. if not acceptable, the clause
 568                  * should terminate the loop with a 'break' */
 569                 if (!PEEK_STACK()) {
 570                         if (*bp_ == '-'
 571                         && (((bp_ - 1) >= start) && isalnum(*(bp_ - 1)))
 572                         && (((bp_ + 1) < ep_)    && isalnum(*(bp_ + 1)))) {
 573                                 /* hyphens are allowed, but only in
 574                                    between alnums */
 575                         } else if (!ispunct(*bp_)) {
 576                                 /* but anything not being a punctiation
 577                                    is ok */
 578                         } else {
 579                                 break; /* anything else is rejected */
 580                         }
 581                 }
 582         }
 583
 584         bp_++;
 585
 586 #undef PEEK_STACK
 587 #undef PUSH_STACK
 588 #undef POP_STACK
 589 #undef IN_STACK
 590 #undef FULL_STACK
 591
 592         /* scan forward (should start with an alnum) */
 593         for (; *bp_ != '<' && isspace(*bp_) && *bp_ != '"'; bp_++)
 594                 ;
 595
 596         *ep = ep_;
 597         *bp = bp_;
 598
 599         return result;
 600 }
 601
 602 #undef IS_QUOTE
 603 #undef IS_RFC822_CHAR
 604
 605 static gchar *make_email_string(const gchar *bp, const gchar *ep)
 606 {
 607         /* returns a mailto: URI; mailto: is also used to detect the
 608          * uri type later on in the button_pressed signal handler */
 609         gchar *tmp;
 610         gchar *result;
 611
 612         tmp = g_strndup(bp, ep - bp);
 613         result = g_strconcat("mailto:", tmp, NULL);
 614         g_free(tmp);
 615
 616         return result;
 617 }
 618
 619 #define ADD_TXT_POS(bp_, ep_, pti_) \
 620         if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
 621                 last = last->next; \
 622                 last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
 623                 last->next = NULL; \
 624         } else { \
 625                 g_warning("alloc error scanning URIs\n"); \
 626                 gtk_text_insert(text, textview->msgfont, fg_color, NULL, \
 627                                 linebuf, -1); \
 628                 return; \
 629         }
 630
 631 /* textview_make_clickable_parts() - colorizes clickable parts */
 632 static void textview_make_clickable_parts(TextView *textview,
 633                                           GdkFont *font,
 634                                           GdkColor *fg_color,
 635                                           GdkColor *uri_color,
 636                                           const gchar *linebuf)
 637 {
 638         /* parse table - in order of priority */
 639         struct table {
 640                 const gchar *needle; /* token */
 641
 642                 /* token search function */
 643                 gchar    *(*search)     (const gchar *haystack,
 644                                          const gchar *needle);
 645                 /* part parsing function */
 646                 gboolean  (*parse)      (const gchar *start,
 647                                          const gchar *scanpos,
 648                                          const gchar **bp_,
 649                                          const gchar **ep_);
 650                 /* part to URI function */
 651                 gchar    *(*build_uri)  (const gchar *bp,
 652                                          const gchar *ep);
 653         };
 654
 655         static struct table parser[] = {
 656                 {"http://",  strcasestr, get_uri_part,   make_uri_string},
 657                 {"https://", strcasestr, get_uri_part,   make_uri_string},
 658                 {"ftp://",   strcasestr, get_uri_part,   make_uri_string},
 659                 {"mailto:",  strcasestr, get_uri_part,   make_uri_string},
 660                 {"@",        strcasestr, get_email_part, make_email_string}
 661         };
 662         const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
 663
 664         gint  n;
 665         const gchar *walk, *bp, *ep;
 666
 667         struct txtpos {
 668                 const gchar     *bp, *ep;       /* text position */
 669                 gint             pti;           /* index in parse table */
 670                 struct txtpos   *next;          /* next */
 671         } head = {NULL, NULL, 0,  NULL}, *last = &head;
 672
 673         GtkText *text = GTK_TEXT(textview->text);
 674
 675         /* parse for clickable parts, and build a list of begin and end positions  */
 676         for (walk = linebuf, n = 0;;) {
 677                 gint last_index = PARSE_ELEMS;
 678                 gchar *scanpos = NULL;
 679
 680                 /* FIXME: this looks phony. scanning for anything in the parse table */
 681                 for (n = 0; n < PARSE_ELEMS; n++) {
 682                         gchar *tmp;
 683
 684                         tmp = parser[n].search(walk, parser[n].needle);
 685                         if (tmp) {
 686                                 if (scanpos == NULL || tmp < scanpos) {
 687                                         scanpos = tmp;
 688                                         last_index = n;
 689                                 }
 690                         }
 691                 }
 692
 693                 if (scanpos) {
 694                         /* check if URI can be parsed */
 695                         if (parser[last_index].parse(linebuf, scanpos, &bp, &ep)
 696                             && (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
 697                                         ADD_TXT_POS(bp, ep, last_index);
 698                                         walk = ep;
 699                         } else
 700                                 walk = scanpos +
 701                                         strlen(parser[last_index].needle);
 702                 } else
 703                         break;
 704         }
 705
 706         /* colorize this line */
 707         if (head.next) {
 708                 const gchar *normal_text = linebuf;
 709
 710                 /* insert URIs */
 711                 for (last = head.next; last != NULL;
 712                      normal_text = last->ep, last = last->next) {
 713                         RemoteURI *uri;
 714
 715                         uri = g_new(RemoteURI, 1);
 716                         if (last->bp - normal_text > 0)
 717                                 gtk_text_insert(text, font,
 718                                                 fg_color, NULL,
 719                                                 normal_text,
 720                                                 last->bp - normal_text);
 721                         uri->uri = parser[last->pti].build_uri(last->bp,
 722                                                                last->ep);
 723                         uri->start = gtk_text_get_point(text);
 724                         gtk_text_insert(text, font, uri_color,
 725                                         NULL, last->bp, last->ep - last->bp);
 726                         uri->end = gtk_text_get_point(text);
 727                         textview->uri_list =
 728                                 g_slist_append(textview->uri_list, uri);
 729                 }
 730
 731                 if (*normal_text)
 732                         gtk_text_insert(text, font, fg_color,
 733                                         NULL, normal_text, -1);
 734         } else
 735                 gtk_text_insert(text, font, fg_color, NULL, linebuf, -1);
 736 }
 737
 738 #undef ADD_TXT_POS
 739
 740 static void textview_write_line(TextView *textview, const gchar *str,
 741                                 CodeConverter *conv)
 742 {
 743         GtkText *text = GTK_TEXT(textview->text);
 744         gchar buf[BUFFSIZE];
 745         size_t len;
 746         GdkColor *fg_color;
 747         gint quotelevel = -1;
 748
 749         if (!conv)
 750                 strncpy2(buf, str, sizeof(buf));
 751         else if (conv_convert(conv, buf, sizeof(buf), str) < 0) {
 752                 gtk_text_insert(text, textview->msgfont,
 753                                 prefs_common.enable_color
 754                                 ? &error_color : NULL, NULL,
 755                                 "*** Warning: code conversion failed ***\n",
 756                                 -1);
 757                 return;
 758         }
 759
 760         len = strlen(buf);
 761         if (len > 1 && buf[len - 1] == '\n' && buf[len - 2] == '\r') {
 762                 buf[len - 2] = '\n';
 763                 buf[len - 1] = '\0';
 764         }
 765         if (prefs_common.conv_mb_alnum) conv_mb_alnum(buf);
 766         fg_color = NULL;
 767
 768         /* change color of quotation
 769            >, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
 770            Up to 3 levels of quotations are detected, and each
 771            level is colored using a different color. */
 772         if (prefs_common.enable_color && strchr(buf, '>')) {
 773                 quotelevel = get_quote_level(buf);
 774
 775                 /* set up the correct foreground color */
 776                 if (quotelevel > 2) {
 777                         /* recycle colors */
 778                         if (prefs_common.recycle_quote_colors)
 779                                 quotelevel %= 3;
 780                         else
 781                                 quotelevel = 2;
 782                 }
 783         }
 784
 785         if (quotelevel == -1)
 786                 fg_color = NULL;
 787         else
 788                 fg_color = &quote_colors[quotelevel];
 789
 790         if (prefs_common.head_space && spacingfont && buf[0] != '\n')
 791                 gtk_text_insert(text, spacingfont, NULL, NULL, " ", 1);
 792
 793         if (prefs_common.enable_color)
 794                 textview_make_clickable_parts(textview, textview->msgfont,
 795                                               fg_color, &uri_color, buf);
 796         else
 797                 textview_make_clickable_parts(textview, textview->msgfont,
 798                                               fg_color, NULL, buf);
 799 }
 800
 801 void textview_clear(TextView *textview)
 802 {
 803         GtkText *text = GTK_TEXT(textview->text);
 804
 805         gtk_text_freeze(text);
 806         gtk_text_set_point(text, 0);
 807         gtk_text_forward_delete(text, gtk_text_get_length(text));
 808         gtk_text_thaw(text);
 809
 810         textview_uri_list_remove_all(textview->uri_list);
 811         textview->uri_list = NULL;
 812 }
 813
 814 void textview_destroy(TextView *textview)
 815 {
 816         textview_uri_list_remove_all(textview->uri_list);
 817         textview->uri_list = NULL;
 818
 819         if (!textview->scrolledwin_sb->parent)
 820                 gtk_widget_destroy(textview->scrolledwin_sb);
 821         if (!textview->scrolledwin_mb->parent)
 822                 gtk_widget_destroy(textview->scrolledwin_mb);
 823
 824         if (textview->msgfont) {
 825                 textview->msgfont->ascent = textview->prev_ascent;
 826                 textview->msgfont->descent = textview->prev_descent;
 827                 gdk_font_unref(textview->msgfont);
 828         }
 829         if (textview->boldfont)
 830                 gdk_font_unref(textview->boldfont);
 831
 832         g_free(textview);
 833 }
 834
 835 void textview_set_font(TextView *textview, const gchar *codeset)
 836 {
 837         gboolean use_fontset = TRUE;
 838
 839         /* In multi-byte mode, GtkText can't display 8bit characters
 840            correctly, so it must be single-byte mode. */
 841         if (MB_CUR_MAX > 1) {
 842                 if (codeset) {
 843                         if (!g_strncasecmp(codeset, "ISO-8859-", 9) ||
 844                             !g_strncasecmp(codeset, "KOI8-", 5)     ||
 845                             !g_strncasecmp(codeset, "CP", 2)        ||
 846                             !g_strncasecmp(codeset, "WINDOWS-", 8)  ||
 847                             !g_strcasecmp(codeset, "BALTIC"))
 848                                 use_fontset = FALSE;
 849                 }
 850         } else
 851                 use_fontset = FALSE;
 852
 853         if (textview->text_is_mb && !use_fontset) {
 854                 GtkWidget *parent;
 855
 856                 parent = textview->scrolledwin_mb->parent;
 857                 gtk_editable_select_region
 858                         (GTK_EDITABLE(textview->text_mb), 0, 0);
 859                 gtk_container_remove(GTK_CONTAINER(parent),
 860                                      textview->scrolledwin_mb);
 861                 gtk_container_add(GTK_CONTAINER(parent),
 862                                   textview->scrolledwin_sb);
 863
 864                 textview->text = textview->text_sb;
 865                 textview->text_is_mb = FALSE;
 866         } else if (!textview->text_is_mb && use_fontset) {
 867                 GtkWidget *parent;
 868
 869                 parent = textview->scrolledwin_sb->parent;
 870                 gtk_editable_select_region
 871                         (GTK_EDITABLE(textview->text_sb), 0, 0);
 872                 gtk_container_remove(GTK_CONTAINER(parent),
 873                                      textview->scrolledwin_sb);
 874                 gtk_container_add(GTK_CONTAINER(parent),
 875                                   textview->scrolledwin_mb);
 876
 877                 textview->text = textview->text_mb;
 878                 textview->text_is_mb = TRUE;
 879         }
 880
 881         if (prefs_common.textfont) {
 882                 if (textview->msgfont) {
 883                         textview->msgfont->ascent = textview->prev_ascent;
 884                         textview->msgfont->descent = textview->prev_descent;
 885                         gdk_font_unref(textview->msgfont);
 886                         textview->msgfont = NULL;
 887                 }
 888                 if (use_fontset)
 889                         textview->msgfont =
 890                                 gdk_fontset_load(prefs_common.textfont);
 891                 else {
 892                         if (MB_CUR_MAX > 1) {
 893                                 FONT_LOAD(textview->msgfont,
 894                                           "-*-courier-medium-r-normal--14-*-*-*-*-*-iso8859-1");
 895                         } else {
 896                                 FONT_LOAD(textview->msgfont,
 897                                           prefs_common.textfont);
 898                         }
 899                 }
 900
 901                 if (textview->msgfont) {
 902                         gint ascent, descent;
 903
 904                         textview->prev_ascent = textview->msgfont->ascent;
 905                         textview->prev_descent = textview->msgfont->descent;
 906                         descent = prefs_common.line_space / 2;
 907                         ascent  = prefs_common.line_space - descent;
 908                         textview->msgfont->ascent  += ascent;
 909                         textview->msgfont->descent += descent;
 910                 }
 911         }
 912
 913         if (!textview->boldfont)
 914                 FONT_LOAD(textview->boldfont, BOLD_FONT);
 915         if (!spacingfont)
 916                 spacingfont = gdk_font_load("-*-*-medium-r-normal--6-*");
 917 }
 918
 919 enum
 920 {
 921         H_DATE          = 0,
 922         H_FROM          = 1,
 923         H_TO            = 2,
 924         H_NEWSGROUPS    = 3,
 925         H_SUBJECT       = 4,
 926         H_CC            = 5,
 927         H_REPLY_TO      = 6,
 928         H_FOLLOWUP_TO   = 7,
 929         H_X_MAILER      = 8,
 930         H_X_NEWSREADER  = 9,
 931         H_USER_AGENT    = 10,
 932         H_ORGANIZATION  = 11,
 933 };
 934
 935 static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
 936 {
 937         gchar buf[BUFFSIZE];
 938         GPtrArray *headers, *sorted_headers;
 939         GSList *disphdr_list;
 940         Header *header;
 941         gint i;
 942
 943         g_return_val_if_fail(fp != NULL, NULL);
 944
 945         if (!prefs_common.display_header) {
 946                 while (fgets(buf, sizeof(buf), fp) != NULL)
 947                         if (buf[0] == '\r' || buf[0] == '\n') break;
 948                 return NULL;
 949         }
 950
 951         headers = procheader_get_header_array_asis(fp);
 952
 953         sorted_headers = g_ptr_array_new();
 954
 955         for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
 956              disphdr_list = disphdr_list->next) {
 957                 DisplayHeaderProp *dp =
 958                         (DisplayHeaderProp *)disphdr_list->data;
 959
 960                 for (i = 0; i < headers->len; i++) {
 961                         header = g_ptr_array_index(headers, i);
 962
 963                         if (procheader_headername_equal(header->name,
 964                                                         dp->name)) {
 965                                 if (dp->hidden)
 966                                         procheader_header_free(header);
 967                                 else
 968                                         g_ptr_array_add(sorted_headers, header);
 969
 970                                 g_ptr_array_remove_index(headers, i);
 971                                 i--;
 972                         }
 973                 }
 974         }
 975
 976         if (prefs_common.show_other_header) {
 977                 for (i = 0; i < headers->len; i++) {
 978                         header = g_ptr_array_index(headers, i);
 979                         g_ptr_array_add(sorted_headers, header);
 980                 }
 981         }
 982
 983         g_ptr_array_free(headers, FALSE);
 984
 985         return sorted_headers;
 986 }
 987
 988 static void textview_show_header(TextView *textview, GPtrArray *headers)
 989 {
 990         GtkText *text = GTK_TEXT(textview->text);
 991         Header *header;
 992         gint i;
 993
 994         g_return_if_fail(headers != NULL);
 995
 996         gtk_text_freeze(text);
 997
 998         for (i = 0; i < headers->len; i++) {
 999                 header = g_ptr_array_index(headers, i);
1000                 g_return_if_fail(header->name != NULL);
1001
1002                 gtk_text_insert(text, textview->boldfont, NULL, NULL,
1003                                 header->name, -1);
1004                 if (header->name[strlen(header->name) - 1] != ' ')
1005                         gtk_text_insert(text, textview->boldfont,
1006                                         NULL, NULL, " ", 1);
1007
1008                 if (procheader_headername_equal(header->name, "Subject") ||
1009                     procheader_headername_equal(header->name, "From")    ||
1010                     procheader_headername_equal(header->name, "To")      ||
1011                     procheader_headername_equal(header->name, "Cc"))
1012                         unfold_line(header->body);
1013
1014                 if (prefs_common.enable_color &&
1015                     (procheader_headername_equal(header->name, "X-Mailer") ||
1016                      procheader_headername_equal(header->name,
1017                                                  "X-Newsreader")) &&
1018                     strstr(header->body, "Sylpheed") != NULL)
1019                         gtk_text_insert(text, NULL, &emphasis_color, NULL,
1020                                         header->body, -1);
1021                 else if (prefs_common.enable_color) {
1022                         textview_make_clickable_parts(textview,
1023                                                       NULL, NULL, &uri_color,
1024                                                       header->body);
1025                 } else {
1026                         textview_make_clickable_parts(textview,
1027                                                       NULL, NULL, NULL,
1028                                                       header->body);
1029                 }
1030                 gtk_text_insert(text, textview->msgfont, NULL, NULL, "\n", 1);
1031         }
1032
1033         gtk_text_insert(text, textview->msgfont, NULL, NULL, "\n", 1);
1034         gtk_text_thaw(text);
1035         textview->body_pos = gtk_text_get_length(text);
1036 }
1037
1038 gboolean textview_search_string(TextView *textview, const gchar *str,
1039                                 gboolean case_sens)
1040 {
1041         GtkText *text = GTK_TEXT(textview->text);
1042         gint pos;
1043         wchar_t *wcs;
1044         gint len;
1045         gint text_len;
1046         gboolean found = FALSE;
1047
1048         g_return_val_if_fail(str != NULL, FALSE);
1049
1050         wcs = strdup_mbstowcs(str);
1051         g_return_val_if_fail(wcs != NULL, FALSE);
1052         len = wcslen(wcs);
1053         pos = gtk_editable_get_position(GTK_EDITABLE(text));
1054         if (pos < textview->body_pos)
1055                 pos = textview->body_pos;
1056         text_len = gtk_text_get_length(text);
1057
1058         for (; pos < text_len; pos++) {
1059                 if (text_len - pos < len) break;
1060                 if (gtkut_text_match_string(text, pos, wcs, len, case_sens)
1061                     == TRUE) {
1062                         gtk_text_freeze(text);
1063                         gtk_text_set_point(text, pos + len);
1064                         gtk_editable_set_position(GTK_EDITABLE(text), pos + len);
1065                         gtk_editable_select_region(GTK_EDITABLE(text),
1066                                                    pos, pos + len);
1067                         gtk_text_thaw(text);
1068                         found = TRUE;
1069                         break;
1070                 }
1071         }
1072
1073         g_free(wcs);
1074         return found;
1075 }
1076
1077 void textview_scroll_one_line(TextView *textview, gboolean up)
1078 {
1079         GtkText *text = GTK_TEXT(textview->text);
1080         gfloat upper;
1081
1082         if (prefs_common.enable_smooth_scroll) {
1083                 textview_smooth_scroll_one_line(textview, up);
1084                 return;
1085         }
1086
1087         if (!up) {
1088                 upper = text->vadj->upper - text->vadj->page_size;
1089                 if (text->vadj->value < upper) {
1090                         text->vadj->value +=
1091                                 text->vadj->step_increment * 4;
1092                         text->vadj->value =
1093                                 MIN(text->vadj->value, upper);
1094                         gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
1095                                                 "value_changed");
1096                 }
1097         } else {
1098                 if (text->vadj->value > 0.0) {
1099                         text->vadj->value -=
1100                                 text->vadj->step_increment * 4;
1101                         text->vadj->value =
1102                                 MAX(text->vadj->value, 0.0);
1103                         gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
1104                                                 "value_changed");
1105                 }
1106         }
1107 }
1108
1109 gboolean textview_scroll_page(TextView *textview, gboolean up)
1110 {
1111         GtkText *text = GTK_TEXT(textview->text);
1112         gfloat upper;
1113         gfloat page_incr;
1114
1115         if (prefs_common.enable_smooth_scroll)
1116                 return textview_smooth_scroll_page(textview, up);
1117
1118         if (prefs_common.scroll_halfpage)
1119                 page_incr = text->vadj->page_increment / 2;
1120         else
1121                 page_incr = text->vadj->page_increment;
1122
1123         if (!up) {
1124                 upper = text->vadj->upper - text->vadj->page_size;
1125                 if (text->vadj->value < upper) {
1126                         text->vadj->value += page_incr;
1127                         text->vadj->value = MIN(text->vadj->value, upper);
1128                         gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
1129                                                 "value_changed");
1130                 } else
1131                         return FALSE;
1132         } else {
1133                 if (text->vadj->value > 0.0) {
1134                         text->vadj->value -= page_incr;
1135                         text->vadj->value = MAX(text->vadj->value, 0.0);
1136                         gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
1137                                                 "value_changed");
1138                 } else
1139                         return FALSE;
1140         }
1141
1142         return TRUE;
1143 }
1144
1145 static void textview_smooth_scroll_do(TextView *textview,
1146                                       gfloat old_value, gfloat last_value,
1147                                       gint step)
1148 {
1149         GtkText *text = GTK_TEXT(textview->text);
1150         gint change_value;
1151         gboolean up;
1152         gint i;
1153
1154         if (old_value < last_value) {
1155                 change_value = last_value - old_value;
1156                 up = FALSE;
1157         } else {
1158                 change_value = old_value - last_value;
1159                 up = TRUE;
1160         }
1161
1162         gdk_key_repeat_disable();
1163
1164         for (i = step; i <= change_value; i += step) {
1165                 text->vadj->value = old_value + (up ? -i : i);
1166                 gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
1167                                         "value_changed");
1168         }
1169
1170         text->vadj->value = last_value;
1171         gtk_signal_emit_by_name(GTK_OBJECT(text->vadj), "value_changed");
1172
1173         gdk_key_repeat_restore();
1174 }
1175
1176 static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
1177 {
1178         GtkText *text = GTK_TEXT(textview->text);
1179         gfloat upper;
1180         gfloat old_value;
1181         gfloat last_value;
1182
1183         if (!up) {
1184                 upper = text->vadj->upper - text->vadj->page_size;
1185                 if (text->vadj->value < upper) {
1186                         old_value = text->vadj->value;
1187                         last_value = text->vadj->value +
1188                                 text->vadj->step_increment * 4;
1189                         last_value = MIN(last_value, upper);
1190
1191                         textview_smooth_scroll_do(textview, old_value,
1192                                                   last_value,
1193                                                   prefs_common.scroll_step);
1194                 }
1195         } else {
1196                 if (text->vadj->value > 0.0) {
1197                         old_value = text->vadj->value;
1198                         last_value = text->vadj->value -
1199                                 text->vadj->step_increment * 4;
1200                         last_value = MAX(last_value, 0.0);
1201
1202                         textview_smooth_scroll_do(textview, old_value,
1203                                                   last_value,
1204                                                   prefs_common.scroll_step);
1205                 }
1206         }
1207 }
1208
1209 static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
1210 {
1211         GtkText *text = GTK_TEXT(textview->text);
1212         gfloat upper;
1213         gfloat page_incr;
1214         gfloat old_value;
1215         gfloat last_value;
1216
1217         if (prefs_common.scroll_halfpage)
1218                 page_incr = text->vadj->page_increment / 2;
1219         else
1220                 page_incr = text->vadj->page_increment;
1221
1222         if (!up) {
1223                 upper = text->vadj->upper - text->vadj->page_size;
1224                 if (text->vadj->value < upper) {
1225                         old_value = text->vadj->value;
1226                         last_value = text->vadj->value + page_incr;
1227                         last_value = MIN(last_value, upper);
1228
1229                         textview_smooth_scroll_do(textview, old_value,
1230                                                   last_value,
1231                                                   prefs_common.scroll_step);
1232                 } else
1233                         return FALSE;
1234         } else {
1235                 if (text->vadj->value > 0.0) {
1236                         old_value = text->vadj->value;
1237                         last_value = text->vadj->value - page_incr;
1238                         last_value = MAX(last_value, 0.0);
1239
1240                         textview_smooth_scroll_do(textview, old_value,
1241                                                   last_value,
1242                                                   prefs_common.scroll_step);
1243                 } else
1244                         return FALSE;
1245         }
1246
1247         return TRUE;
1248 }
1249
1250 static void textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1251                                  TextView *textview)
1252 {
1253         SummaryView *summaryview = NULL;
1254
1255         if (!event) return;
1256         if (textview->messageview->mainwin)
1257                 summaryview = textview->messageview->mainwin->summaryview;
1258
1259         switch (event->keyval) {
1260         case GDK_Tab:
1261         case GDK_Home:
1262         case GDK_Left:
1263         case GDK_Up:
1264         case GDK_Right:
1265         case GDK_Down:
1266         case GDK_Page_Up:
1267         case GDK_Page_Down:
1268         case GDK_End:
1269         case GDK_Control_L:
1270         case GDK_Control_R:
1271                 break;
1272         case GDK_space:
1273                 if (summaryview)
1274                         summary_pass_key_press_event(summaryview, event);
1275                 else
1276                         textview_scroll_page(textview, FALSE);
1277                 break;
1278         case GDK_BackSpace:
1279         case GDK_Delete:
1280                 textview_scroll_page(textview, TRUE);
1281                 break;
1282         case GDK_Return:
1283                 textview_scroll_one_line(textview,
1284                                          (event->state & GDK_MOD1_MASK) != 0);
1285                 break;
1286         default:
1287                 if (summaryview)
1288                         summary_pass_key_press_event(summaryview, event);
1289                 break;
1290         }
1291 }
1292
1293 static void textview_button_pressed(GtkWidget *widget, GdkEventButton *event,
1294                                     TextView *textview)
1295 {
1296         if (event &&
1297             ((event->button == 1 && event->type == GDK_2BUTTON_PRESS)
1298              || event->button == 2 || event->button == 3)) {
1299                 GSList *cur;
1300                 guint current_pos;
1301
1302                 current_pos = GTK_EDITABLE(textview->text)->current_pos;
1303
1304                 for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
1305                         RemoteURI *uri = (RemoteURI *)cur->data;
1306
1307                         if (current_pos >= uri->start &&
1308                             current_pos <  uri->end) {
1309                                 if (!g_strncasecmp(uri->uri, "mailto:", 7)) {
1310                                         if (event->button == 3) {
1311                                                 gchar *fromname, *fromaddress;
1312                                                 /* extract url */
1313                                                 fromaddress = g_strdup(uri->uri + 7);
1314                                                 /* Hiroyuki: please put this function in utils.c! */
1315                                                 fromname = procheader_get_fromname(fromaddress);
1316                                                 extract_address(fromaddress);
1317                                                 g_message("adding from textview %s <%s>", fromname, fromaddress);
1318                                                 // Add to address book - Match
1319                                                 addressbook_add_contact( fromname, fromaddress, NULL );
1320                                                 g_free(fromaddress);
1321                                                 g_free(fromname);
1322                                         } else {
1323                                                 compose_new_with_recipient
1324                                                         (NULL, uri->uri + 7);
1325                                         }
1326                                 } else {
1327                                         open_uri(uri->uri,
1328                                                  prefs_common.uri_cmd);
1329                                 }
1330                         }
1331                 }
1332         }
1333 }
1334
1335 static void textview_uri_list_remove_all(GSList *uri_list)
1336 {
1337         GSList *cur;
1338
1339         for (cur = uri_list; cur != NULL; cur = cur->next) {
1340                 if (cur->data) {
1341                         g_free(((RemoteURI *)cur->data)->uri);
1342                         g_free(cur->data);
1343                 }
1344         }
1345
1346         g_slist_free(uri_list);
1347 }