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