git.maemo.org Git - modest/blob - src/widgets/modest-msg-view.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <tny-text-buffer-stream.h>
  31 #include <string.h>
  32 #include <regex.h>
  33 #include <ctype.h>
  34 #include <stdlib.h>
  35 #include <glib/gi18n.h>
  36 #include <gtkhtml/gtkhtml.h>
  37 #include <gtkhtml/gtkhtml-stream.h>
  38 #include <tny-list-iface.h>
  39
  40 #include <modest-tny-msg-actions.h>
  41 #include "modest-msg-view.h"
  42 #include "modest-tny-stream-gtkhtml.h"
  43
  44
  45 /* 'private'/'protected' functions */
  46 static void     modest_msg_view_class_init   (ModestMsgViewClass *klass);
  47 static void     modest_msg_view_init         (ModestMsgView *obj);
  48 static void     modest_msg_view_finalize     (GObject *obj);
  49
  50
  51 static GSList*  get_url_matches (GString *txt);
  52 static gboolean on_link_clicked (GtkWidget *widget, const gchar *uri,
  53                                  ModestMsgView *msg_view);
  54 static gboolean on_url_requested (GtkWidget *widget, const gchar *uri,
  55                                   GtkHTMLStream *stream,
  56                                   ModestMsgView *msg_view);
  57
  58 /*
  59  * we need these regexps to find URLs in plain text e-mails
  60  */
  61 typedef struct _UrlMatchPattern UrlMatchPattern;
  62 struct _UrlMatchPattern {
  63         gchar   *regex;
  64         regex_t *preg;
  65         gchar   *prefix;
  66
  67 };
  68
  69 #define ATT_PREFIX "att:"
  70
  71 #define MAIL_VIEWER_URL_MATCH_PATTERNS  {                               \
  72         { "(file|http|ftp|https)://[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]+[-A-Za-z0-9_$%&=?/~#]",\
  73           NULL, NULL },\
  74         { "www\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
  75           NULL, "http://" },\
  76         { "ftp\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
  77           NULL, "ftp://" },\
  78         { "(voipto|callto|chatto|jabberto|xmpp):[-_a-z@0-9.\\+]+", \
  79            NULL, NULL},                                             \
  80         { "mailto:[-_a-z0-9.\\+]+@[-_a-z0-9.]+",                    \
  81           NULL, NULL},\
  82         { "[-_a-z0-9.\\+]+@[-_a-z0-9.]+",\
  83           NULL, "mailto:"}\
  84         }
  85
  86
  87 /* list my signals */
  88 enum {
  89         LINK_CLICKED_SIGNAL,
  90         ATTACHMENT_CLICKED_SIGNAL,
  91         LAST_SIGNAL
  92 };
  93
  94 typedef struct _ModestMsgViewPrivate ModestMsgViewPrivate;
  95 struct _ModestMsgViewPrivate {
  96         GtkWidget *gtkhtml;
  97         const TnyMsgIface *msg;
  98 };
  99 #define MODEST_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 100                                                  MODEST_TYPE_MSG_VIEW, \
 101                                                  ModestMsgViewPrivate))
 102 /* globals */
 103 static GtkContainerClass *parent_class = NULL;
 104
 105 /* uncomment the following if you have defined any signals */
 106 static guint signals[LAST_SIGNAL] = {0};
 107
 108 GType
 109 modest_msg_view_get_type (void)
 110 {
 111         static GType my_type = 0;
 112         if (!my_type) {
 113                 static const GTypeInfo my_info = {
 114                         sizeof(ModestMsgViewClass),
 115                         NULL,           /* base init */
 116                         NULL,           /* base finalize */
 117                         (GClassInitFunc) modest_msg_view_class_init,
 118                         NULL,           /* class finalize */
 119                         NULL,           /* class data */
 120                         sizeof(ModestMsgView),
 121                         1,              /* n_preallocs */
 122                         (GInstanceInitFunc) modest_msg_view_init,
 123                 };
 124                 my_type = g_type_register_static (GTK_TYPE_SCROLLED_WINDOW,
 125                                                   "ModestMsgView",
 126                                                   &my_info, 0);
 127         }
 128         return my_type;
 129 }
 130
 131 static void
 132 modest_msg_view_class_init (ModestMsgViewClass *klass)
 133 {
 134         GObjectClass *gobject_class;
 135         gobject_class = (GObjectClass*) klass;
 136
 137         parent_class            = g_type_class_peek_parent (klass);
 138         gobject_class->finalize = modest_msg_view_finalize;
 139
 140         g_type_class_add_private (gobject_class, sizeof(ModestMsgViewPrivate));
 141
 142
 143         signals[LINK_CLICKED_SIGNAL] =
 144                 g_signal_new ("link_clicked",
 145                               G_TYPE_FROM_CLASS (gobject_class),
 146                               G_SIGNAL_RUN_FIRST,
 147                               G_STRUCT_OFFSET(ModestMsgViewClass, link_clicked),
 148                               NULL, NULL,
 149                               g_cclosure_marshal_VOID__STRING,
 150                               G_TYPE_NONE, 1, G_TYPE_STRING);
 151
 152         signals[ATTACHMENT_CLICKED_SIGNAL] =
 153                 g_signal_new ("attachment_clicked",
 154                               G_TYPE_FROM_CLASS (gobject_class),
 155                               G_SIGNAL_RUN_FIRST,
 156                               G_STRUCT_OFFSET(ModestMsgViewClass, attachment_clicked),
 157                               NULL, NULL,
 158                               g_cclosure_marshal_VOID__POINTER,
 159                               G_TYPE_NONE, 1, G_TYPE_INT);
 160
 161 }
 162
 163 static void
 164 modest_msg_view_init (ModestMsgView *obj)
 165 {
 166         ModestMsgViewPrivate *priv;
 167
 168         priv = MODEST_MSG_VIEW_GET_PRIVATE(obj);
 169
 170         priv->msg                     = NULL;
 171         priv->gtkhtml                 = gtk_html_new();
 172
 173         gtk_html_set_editable        (GTK_HTML(priv->gtkhtml), FALSE);
 174         gtk_html_allow_selection     (GTK_HTML(priv->gtkhtml), TRUE);
 175         gtk_html_set_caret_mode      (GTK_HTML(priv->gtkhtml), FALSE);
 176         gtk_html_set_blocking        (GTK_HTML(priv->gtkhtml), FALSE);
 177         gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
 178
 179         g_signal_connect (G_OBJECT(priv->gtkhtml), "link_clicked",
 180                           G_CALLBACK(on_link_clicked), obj);
 181
 182         g_signal_connect (G_OBJECT(priv->gtkhtml), "url_requested",
 183                           G_CALLBACK(on_url_requested), obj);
 184 }
 185
 186
 187 static void
 188 modest_msg_view_finalize (GObject *obj)
 189 {
 190         G_OBJECT_CLASS(parent_class)->finalize (obj);
 191 }
 192
 193
 194 GtkWidget*
 195 modest_msg_view_new (const TnyMsgIface *msg)
 196 {
 197         GObject *obj;
 198         ModestMsgView* self;
 199         ModestMsgViewPrivate *priv;
 200
 201         obj  = G_OBJECT(g_object_new(MODEST_TYPE_MSG_VIEW, NULL));
 202         self = MODEST_MSG_VIEW(obj);
 203         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
 204
 205         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(self),
 206                                        GTK_POLICY_AUTOMATIC,
 207                                        GTK_POLICY_AUTOMATIC);
 208
 209         if (priv->gtkhtml)
 210                 gtk_container_add (GTK_CONTAINER(obj), priv->gtkhtml);
 211
 212         if (msg)
 213                 modest_msg_view_set_message (self, msg);
 214
 215         return GTK_WIDGET(self);
 216 }
 217
 218
 219 static gboolean
 220 on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
 221 {
 222
 223         int index;
 224
 225         g_return_val_if_fail (msg_view, FALSE);
 226
 227         /* is it an attachment? */
 228         if (g_str_has_prefix(uri, ATT_PREFIX)) {
 229
 230                 index = atoi (uri + strlen(ATT_PREFIX));
 231
 232                 if (index == 0) {
 233                         /* index is 1-based, so 0 indicates an error */
 234                         g_printerr ("modest: invalid attachment id: %s\n", uri);
 235                         return FALSE;
 236                 }
 237
 238                 g_signal_emit (G_OBJECT(msg_view), signals[ATTACHMENT_CLICKED_SIGNAL],
 239                                0, index);
 240                 return FALSE;
 241         }
 242
 243         g_signal_emit (G_OBJECT(msg_view), signals[LINK_CLICKED_SIGNAL], 0, uri);
 244
 245         return FALSE;
 246 }
 247
 248
 249 static TnyMsgMimePartIface *
 250 find_cid_image (const TnyMsgIface *msg, const gchar *cid)
 251 {
 252         TnyMsgMimePartIface *part = NULL;
 253         const TnyListIface *parts;
 254         TnyIteratorIface *iter;
 255
 256         g_return_val_if_fail (msg, NULL);
 257         g_return_val_if_fail (cid, NULL);
 258
 259         parts  = tny_msg_iface_get_parts ((TnyMsgIface*)msg); // FIXME: tinymail
 260         iter   = tny_list_iface_create_iterator ((TnyListIface*)parts);
 261
 262         while (!tny_iterator_iface_is_done(iter)) {
 263                 const gchar *part_cid;
 264                 part = TNY_MSG_MIME_PART_IFACE(tny_iterator_iface_current(iter));
 265                 part_cid = tny_msg_mime_part_iface_get_content_id (part);
 266
 267                 if (part_cid && strcmp (cid, part_cid) == 0)
 268                         break;
 269
 270                 part = NULL;
 271                 tny_iterator_iface_next (iter);
 272         }
 273
 274         g_object_unref (G_OBJECT(iter));
 275         return part;
 276 }
 277
 278
 279 static gboolean
 280 on_url_requested (GtkWidget *widget, const gchar *uri,
 281                   GtkHTMLStream *stream,
 282                   ModestMsgView *msg_view)
 283 {
 284         ModestMsgViewPrivate *priv;
 285         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 286
 287         if (g_str_has_prefix (uri, "cid:")) {
 288                 /* +4 ==> skip "cid:" */
 289                 const TnyMsgMimePartIface *part = find_cid_image (priv->msg, uri + 4);
 290                 if (!part) {
 291                         g_printerr ("modest: '%s' not found\n", uri + 4);
 292                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
 293                 } else {
 294                         TnyStreamIface *tny_stream =
 295                                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new(stream));
 296                         // FIXME: tinymail
 297                         tny_msg_mime_part_iface_decode_to_stream ((TnyMsgMimePartIface*)part,
 298                                                                   tny_stream);
 299                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
 300                 }
 301         }
 302
 303         return TRUE;
 304 }
 305
 306
 307 typedef struct  {
 308         guint offset;
 309         guint len;
 310         const gchar* prefix;
 311 } url_match_t;
 312
 313
 314
 315 /* render the attachments as hyperlinks in html */
 316 static gchar*
 317 attachments_as_html (ModestMsgView *self, const TnyMsgIface *msg)
 318 {
 319         ModestMsgViewPrivate *priv;
 320         GString *appendix;
 321         const TnyListIface *parts;
 322         TnyIteratorIface *iter;
 323         gchar *html;
 324         int index = 0;
 325
 326         if (!msg)
 327                 return NULL;
 328
 329         priv  = MODEST_MSG_VIEW_GET_PRIVATE (self);
 330         parts = tny_msg_iface_get_parts ((TnyMsgIface*)msg);
 331         // FIXME: tinymail
 332         iter  = tny_list_iface_create_iterator ((TnyListIface*)parts);
 333
 334         appendix= g_string_new ("");
 335
 336         while (!tny_iterator_iface_is_done(iter)) {
 337                 TnyMsgMimePartIface *part;
 338
 339                 ++index; /* attachment numbers are 1-based */
 340
 341                 part = TNY_MSG_MIME_PART_IFACE(tny_iterator_iface_current (iter));
 342
 343                 if (tny_msg_mime_part_iface_is_attachment (part)) {
 344
 345                         const gchar *filename = tny_msg_mime_part_iface_get_filename(part);
 346                         if (!filename)
 347                                 filename = _("attachment");
 348
 349                         g_string_append_printf (appendix, "<a href=\"%s%d\">%s</a> \n",
 350                                                 ATT_PREFIX, index, filename);
 351                 }
 352                 tny_iterator_iface_next (iter);
 353         }
 354         g_object_unref (G_OBJECT(iter));
 355
 356         if (appendix->len == 0)
 357                 return g_string_free (appendix, TRUE);
 358
 359         html = g_strdup_printf ("<strong>%s:</strong> %s\n<hr>",
 360                                 _("Attachments"), appendix->str);
 361         g_string_free (appendix, TRUE);
 362
 363         return html;
 364 }
 365
 366
 367
 368 static void
 369 hyperlinkify_plain_text (GString *txt)
 370 {
 371         GSList *cursor;
 372         GSList *match_list = get_url_matches (txt);
 373
 374         /* we will work backwards, so the offsets stay valid */
 375         for (cursor = match_list; cursor; cursor = cursor->next) {
 376
 377                 url_match_t *match = (url_match_t*) cursor->data;
 378                 gchar *url  = g_strndup (txt->str + match->offset, match->len);
 379                 gchar *repl = NULL; /* replacement  */
 380
 381                 /* the prefix is NULL: use the one that is already there */
 382                 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
 383                                         match->prefix ? match->prefix : "", url, url);
 384
 385                 /* replace the old thing with our hyperlink
 386                  * replacement thing */
 387                 g_string_erase  (txt, match->offset, match->len);
 388                 g_string_insert (txt, match->offset, repl);
 389
 390                 g_free (url);
 391                 g_free (repl);
 392
 393                 g_free (cursor->data);
 394         }
 395
 396         g_slist_free (match_list);
 397 }
 398
 399
 400
 401 static gchar *
 402 convert_to_html (const gchar *data)
 403 {
 404         int              i;
 405         gboolean         first_space = TRUE;
 406         GString         *html;
 407         gsize           len;
 408
 409         if (!data)
 410                 return NULL;
 411
 412         len = strlen (data);
 413         html = g_string_sized_new (len + 100);  /* just a  guess... */
 414
 415         g_string_append_printf (html,
 416                                 "<html>"
 417                                 "<head>"
 418                                 "<meta http-equiv=\"content-type\""
 419                                 " content=\"text/html; charset=utf8\">"
 420                                 "</head>"
 421                                 "<body><tt>");
 422
 423         /* replace with special html chars where needed*/
 424         for (i = 0; i != len; ++i)  {
 425                 char    kar = data[i];
 426                 switch (kar) {
 427
 428                 case 0:  break; /* ignore embedded \0s */
 429                 case '<' : g_string_append   (html, "&lt;"); break;
 430                 case '>' : g_string_append   (html, "&gt;"); break;
 431                 case '&' : g_string_append   (html, "&quot;"); break;
 432                 case '\n': g_string_append   (html, "<br>\n"); break;
 433                 default:
 434                         if (kar == ' ') {
 435                                 g_string_append (html, first_space ? " " : "&nbsp;");
 436                                 first_space = FALSE;
 437                         } else  if (kar == '\t')
 438                                 g_string_append (html, "&nbsp; &nbsp;&nbsp;");
 439                         else {
 440                                 int charnum = 0;
 441                                 first_space = TRUE;
 442                                 /* optimization trick: accumulate 'normal' chars, then copy */
 443                                 do {
 444                                         kar = data [++charnum + i];
 445
 446                                 } while ((i + charnum < len) &&
 447                                          (kar > '>' || (kar != '<' && kar != '>'
 448                                                         && kar != '&' && kar !=  ' '
 449                                                         && kar != '\n' && kar != '\t')));
 450                                 g_string_append_len (html, &data[i], charnum);
 451                                 i += (charnum  - 1);
 452                         }
 453                 }
 454         }
 455
 456         g_string_append (html, "</tt></body></html>");
 457         hyperlinkify_plain_text (html);
 458
 459         return g_string_free (html, FALSE);
 460 }
 461
 462
 463
 464
 465 static gint
 466 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
 467 {
 468         return match2->offset - match1->offset;
 469 }
 470
 471
 472
 473 /*
 474  * check if the match is inside an existing match... */
 475 static void
 476 chk_partial_match (const url_match_t *match, int* offset)
 477 {
 478         if (*offset >= match->offset && *offset < match->offset + match->len)
 479                 *offset = -1;
 480 }
 481
 482 static GSList*
 483 get_url_matches (GString *txt)
 484 {
 485         regmatch_t rm;
 486         int rv, i, offset = 0;
 487         GSList *match_list = NULL;
 488
 489         static UrlMatchPattern patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
 490         const size_t pattern_num = sizeof(patterns)/sizeof(UrlMatchPattern);
 491
 492         /* initalize the regexps */
 493         for (i = 0; i != pattern_num; ++i) {
 494                 patterns[i].preg = g_new0 (regex_t,1);
 495                 g_assert(regcomp (patterns[i].preg, patterns[i].regex,
 496                                   REG_ICASE|REG_EXTENDED|REG_NEWLINE) == 0);
 497         }
 498         /* find all the matches */
 499         for (i = 0; i != pattern_num; ++i) {
 500                 offset     = 0;
 501                 while (1) {
 502                         int test_offset;
 503                         if ((rv = regexec (patterns[i].preg, txt->str + offset, 1, &rm, 0)) != 0) {
 504                                 g_assert (rv == REG_NOMATCH); /* this should not happen */
 505                                 break; /* try next regexp */
 506                         }
 507                         if (rm.rm_so == -1)
 508                                 break;
 509
 510                         /* FIXME: optimize this */
 511                         /* to avoid partial matches on something that was already found... */
 512                         /* check_partial_match will put -1 in the data ptr if that is the case */
 513                         test_offset = offset + rm.rm_so;
 514                         g_slist_foreach (match_list, (GFunc)chk_partial_match, &test_offset);
 515
 516                         /* make a list of our matches (<offset, len, prefix> tupels)*/
 517                         if (test_offset != -1) {
 518                                 url_match_t *match = g_new (url_match_t,1);
 519                                 match->offset = offset + rm.rm_so;
 520                                 match->len    = rm.rm_eo - rm.rm_so;
 521                                 match->prefix = patterns[i].prefix;
 522                                 match_list = g_slist_prepend (match_list, match);
 523                         }
 524                         offset += rm.rm_eo;
 525                 }
 526         }
 527
 528         for (i = 0; i != pattern_num; ++i) {
 529                 regfree (patterns[i].preg);
 530                 g_free  (patterns[i].preg);
 531         } /* don't free patterns itself -- it's static */
 532
 533         /* now sort the list, so the matches are in reverse order of occurence.
 534          * that way, we can do the replacements starting from the end, so we don't need
 535          * to recalculate the offsets
 536          */
 537         match_list = g_slist_sort (match_list,
 538                                    (GCompareFunc)cmp_offsets_reverse);
 539         return match_list;
 540 }
 541
 542
 543
 544 static gboolean
 545 set_html_message (ModestMsgView *self, const TnyMsgMimePartIface *tny_body,
 546                   const TnyMsgIface *msg)
 547 {
 548         gchar *html_attachments;
 549         TnyStreamIface *gtkhtml_stream;
 550         ModestMsgViewPrivate *priv;
 551
 552         g_return_val_if_fail (self, FALSE);
 553         g_return_val_if_fail (tny_body, FALSE);
 554
 555         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
 556
 557         gtkhtml_stream =
 558                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new
 559                                  (gtk_html_begin(GTK_HTML(priv->gtkhtml))));
 560
 561         tny_stream_iface_reset (gtkhtml_stream);
 562
 563         html_attachments = attachments_as_html(self, msg);
 564         if (html_attachments) {
 565                 tny_stream_iface_write (gtkhtml_stream, html_attachments,
 566                                         strlen(html_attachments));
 567                 tny_stream_iface_reset (gtkhtml_stream);
 568                 g_free (html_attachments);
 569         }
 570
 571         // FIXME: tinymail
 572         tny_msg_mime_part_iface_decode_to_stream ((TnyMsgMimePartIface*)tny_body,
 573                                                   gtkhtml_stream);
 574
 575         g_object_unref (G_OBJECT(gtkhtml_stream));
 576
 577         return TRUE;
 578 }
 579
 580
 581 /* this is a hack --> we use the tny_text_buffer_stream to
 582  * get the message text, then write to gtkhtml 'by hand' */
 583 static gboolean
 584 set_text_message (ModestMsgView *self, const TnyMsgMimePartIface *tny_body,
 585                   const TnyMsgIface *msg)
 586 {
 587         GtkTextBuffer *buf;
 588         GtkTextIter begin, end;
 589         TnyStreamIface* txt_stream, *gtkhtml_stream;
 590         gchar *txt, *html_attachments;
 591         ModestMsgViewPrivate *priv;
 592
 593         g_return_val_if_fail (self, FALSE);
 594         g_return_val_if_fail (tny_body, FALSE);
 595
 596         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
 597
 598         buf            = gtk_text_buffer_new (NULL);
 599         txt_stream     = TNY_STREAM_IFACE(tny_text_buffer_stream_new (buf));
 600
 601         tny_stream_iface_reset (txt_stream);
 602
 603         gtkhtml_stream =
 604                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new
 605                                  (gtk_html_begin(GTK_HTML(priv->gtkhtml))));
 606
 607         html_attachments = attachments_as_html(self, msg);
 608         if (html_attachments) {
 609                 tny_stream_iface_write (gtkhtml_stream, html_attachments,
 610                                         strlen(html_attachments));
 611                 tny_stream_iface_reset (gtkhtml_stream);
 612                 g_free (html_attachments);
 613         }
 614
 615         // FIXME: tinymail
 616         tny_msg_mime_part_iface_decode_to_stream ((TnyMsgMimePartIface*)tny_body,
 617                                                   txt_stream);
 618         tny_stream_iface_reset (txt_stream);
 619
 620         gtk_text_buffer_get_bounds (buf, &begin, &end);
 621         txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
 622         if (txt) {
 623                 gchar *html = convert_to_html (txt);
 624                 tny_stream_iface_write (gtkhtml_stream, html, strlen(html));
 625                 tny_stream_iface_reset (gtkhtml_stream);
 626                 g_free (txt);
 627                 g_free (html);
 628         }
 629
 630         g_object_unref (G_OBJECT(gtkhtml_stream));
 631         g_object_unref (G_OBJECT(txt_stream));
 632         g_object_unref (G_OBJECT(buf));
 633
 634         return TRUE;
 635 }
 636
 637
 638 static gboolean
 639 set_empty_message (ModestMsgView *self)
 640 {
 641         ModestMsgViewPrivate *priv;
 642
 643         g_return_val_if_fail (self, FALSE);
 644         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
 645
 646         gtk_html_load_from_string (GTK_HTML(priv->gtkhtml),
 647                                    "", 1);
 648
 649         return TRUE;
 650 }
 651
 652
 653 gchar *
 654 modest_msg_view_get_selected_text (ModestMsgView *self)
 655 {
 656         ModestMsgViewPrivate *priv;
 657         gchar *sel;
 658         GtkWidget *html;
 659         int len;
 660         GtkClipboard *clip;
 661
 662         g_return_val_if_fail (self, NULL);
 663         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
 664         html = priv->gtkhtml;
 665
 666         /* I'm sure there is a better way to check for selected text */
 667         sel = gtk_html_get_selection_html(GTK_HTML(html), &len);
 668         if (!sel)
 669                 return NULL;
 670
 671         g_free(sel);
 672
 673         clip = gtk_widget_get_clipboard(html, GDK_SELECTION_PRIMARY);
 674         return gtk_clipboard_wait_for_text(clip);
 675 }
 676
 677
 678 void
 679 modest_msg_view_set_message (ModestMsgView *self, const TnyMsgIface *msg)
 680 {
 681         TnyMsgMimePartIface *body;
 682         ModestMsgViewPrivate *priv;
 683
 684         g_return_if_fail (self);
 685
 686         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
 687
 688         priv->msg = msg;
 689
 690         if (!msg) {
 691                 set_empty_message (self);
 692                 return;
 693         }
 694
 695         body = modest_tny_msg_actions_find_body_part (msg, TRUE);
 696         if (body) {
 697                 if (tny_msg_mime_part_iface_content_type_is (body, "text/html"))
 698                         set_html_message (self, body, msg);
 699                 else
 700                         set_text_message (self, body, msg);
 701                 return;
 702         } else
 703                 set_empty_message (self);
 704 }