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 #include <tny-list.h>
  40
  41 #include <modest-tny-msg-actions.h>
  42 #include "modest-msg-view.h"
  43 #include "modest-tny-stream-gtkhtml.h"
  44
  45
  46 /* 'private'/'protected' functions */
  47 static void     modest_msg_view_class_init   (ModestMsgViewClass *klass);
  48 static void     modest_msg_view_init         (ModestMsgView *obj);
  49 static void     modest_msg_view_finalize     (GObject *obj);
  50
  51
  52 static GSList*  get_url_matches (GString *txt);
  53 static gboolean on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view);
  54 static gboolean on_url_requested (GtkWidget *widget, const gchar *uri, GtkHTMLStream *stream,
  55                                   ModestMsgView *msg_view);
  56 static gboolean on_link_hover (GtkWidget *widget, const gchar *uri, 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 #define ATT_PREFIX "att:"
  69
  70 #define MAIL_VIEWER_URL_MATCH_PATTERNS  {                               \
  71         { "(file|rtsp|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         LINK_HOVER_SIGNAL,
  90         ATTACHMENT_CLICKED_SIGNAL,
  91         LAST_SIGNAL
  92 };
  93
  94 typedef struct _ModestMsgViewPrivate ModestMsgViewPrivate;
  95 struct _ModestMsgViewPrivate {
  96
  97         GtkWidget   *gtkhtml;
  98         TnyMsgIface *msg;
  99
 100         gulong  sig1, sig2, sig3;
 101 };
 102 #define MODEST_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 103                                                  MODEST_TYPE_MSG_VIEW, \
 104                                                  ModestMsgViewPrivate))
 105 /* globals */
 106 static GtkContainerClass *parent_class = NULL;
 107
 108 /* uncomment the following if you have defined any signals */
 109 static guint signals[LAST_SIGNAL] = {0};
 110
 111 GType
 112 modest_msg_view_get_type (void)
 113 {
 114         static GType my_type = 0;
 115         if (!my_type) {
 116                 static const GTypeInfo my_info = {
 117                         sizeof(ModestMsgViewClass),
 118                         NULL,           /* base init */
 119                         NULL,           /* base finalize */
 120                         (GClassInitFunc) modest_msg_view_class_init,
 121                         NULL,           /* class finalize */
 122                         NULL,           /* class data */
 123                         sizeof(ModestMsgView),
 124                         1,              /* n_preallocs */
 125                         (GInstanceInitFunc) modest_msg_view_init,
 126                         NULL
 127                 };
 128                 my_type = g_type_register_static (GTK_TYPE_SCROLLED_WINDOW,
 129                                                   "ModestMsgView",
 130                                                   &my_info, 0);
 131         }
 132         return my_type;
 133 }
 134
 135 static void
 136 modest_msg_view_class_init (ModestMsgViewClass *klass)
 137 {
 138         GObjectClass *gobject_class;
 139         gobject_class = (GObjectClass*) klass;
 140
 141         parent_class            = g_type_class_peek_parent (klass);
 142         gobject_class->finalize = modest_msg_view_finalize;
 143
 144         g_type_class_add_private (gobject_class, sizeof(ModestMsgViewPrivate));
 145
 146
 147         signals[LINK_CLICKED_SIGNAL] =
 148                 g_signal_new ("link_clicked",
 149                               G_TYPE_FROM_CLASS (gobject_class),
 150                               G_SIGNAL_RUN_FIRST,
 151                               G_STRUCT_OFFSET(ModestMsgViewClass, link_clicked),
 152                               NULL, NULL,
 153                               g_cclosure_marshal_VOID__STRING,
 154                               G_TYPE_NONE, 1, G_TYPE_STRING);
 155
 156         signals[ATTACHMENT_CLICKED_SIGNAL] =
 157                 g_signal_new ("attachment_clicked",
 158                               G_TYPE_FROM_CLASS (gobject_class),
 159                               G_SIGNAL_RUN_FIRST,
 160                               G_STRUCT_OFFSET(ModestMsgViewClass, attachment_clicked),
 161                               NULL, NULL,
 162                               g_cclosure_marshal_VOID__POINTER,
 163                               G_TYPE_NONE, 1, G_TYPE_INT);
 164
 165         signals[LINK_HOVER_SIGNAL] =
 166                 g_signal_new ("link_hover",
 167                               G_TYPE_FROM_CLASS (gobject_class),
 168                               G_SIGNAL_RUN_FIRST,
 169                               G_STRUCT_OFFSET(ModestMsgViewClass, link_hover),
 170                               NULL, NULL,
 171                               g_cclosure_marshal_VOID__STRING,
 172                               G_TYPE_NONE, 1, G_TYPE_STRING);
 173 }
 174
 175 static void
 176 modest_msg_view_init (ModestMsgView *obj)
 177 {
 178         ModestMsgViewPrivate *priv;
 179
 180         priv = MODEST_MSG_VIEW_GET_PRIVATE(obj);
 181
 182         priv->msg                     = NULL;
 183         priv->gtkhtml                 = gtk_html_new();
 184
 185         gtk_html_set_editable        (GTK_HTML(priv->gtkhtml), FALSE);
 186         gtk_html_allow_selection     (GTK_HTML(priv->gtkhtml), TRUE);
 187         gtk_html_set_caret_mode      (GTK_HTML(priv->gtkhtml), FALSE);
 188         gtk_html_set_blocking        (GTK_HTML(priv->gtkhtml), FALSE);
 189         gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
 190
 191         priv->sig1 = g_signal_connect (G_OBJECT(priv->gtkhtml), "link_clicked",
 192                                        G_CALLBACK(on_link_clicked), obj);
 193         priv->sig2 = g_signal_connect (G_OBJECT(priv->gtkhtml), "url_requested",
 194                                        G_CALLBACK(on_url_requested), obj);
 195         priv->sig3 = g_signal_connect (G_OBJECT(priv->gtkhtml), "on_url",
 196                                        G_CALLBACK(on_link_hover), obj);
 197 }
 198
 199
 200 static void
 201 modest_msg_view_finalize (GObject *obj)
 202 {
 203         ModestMsgViewPrivate *priv;
 204         priv = MODEST_MSG_VIEW_GET_PRIVATE (obj);
 205
 206         if (priv->msg) {
 207                 g_object_unref (G_OBJECT(priv->msg));
 208                 priv->msg = NULL;
 209         }
 210
 211         /* we cannot disconnect sigs, because priv->gtkhtml is
 212          * already dead */
 213
 214         priv->gtkhtml = NULL;
 215
 216         G_OBJECT_CLASS(parent_class)->finalize (obj);
 217 }
 218
 219
 220 GtkWidget*
 221 modest_msg_view_new (TnyMsgIface *msg)
 222 {
 223         GObject *obj;
 224         ModestMsgView* self;
 225         ModestMsgViewPrivate *priv;
 226
 227         obj  = G_OBJECT(g_object_new(MODEST_TYPE_MSG_VIEW, NULL));
 228         self = MODEST_MSG_VIEW(obj);
 229         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
 230
 231         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(self),
 232                                        GTK_POLICY_AUTOMATIC,
 233                                        GTK_POLICY_AUTOMATIC);
 234
 235         if (priv->gtkhtml)
 236                 gtk_container_add (GTK_CONTAINER(obj), priv->gtkhtml);
 237
 238         if (msg)
 239                 modest_msg_view_set_message (self, msg);
 240
 241         return GTK_WIDGET(self);
 242 }
 243
 244
 245 static gboolean
 246 on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
 247 {
 248         int index;
 249
 250         g_return_val_if_fail (msg_view, FALSE);
 251
 252         /* is it an attachment? */
 253         if (g_str_has_prefix(uri, ATT_PREFIX)) {
 254
 255                 index = atoi (uri + strlen(ATT_PREFIX));
 256
 257                 if (index == 0) {
 258                         /* index is 1-based, so 0 indicates an error */
 259                         g_printerr ("modest: invalid attachment id: %s\n", uri);
 260                         return FALSE;
 261                 }
 262
 263                 g_signal_emit (G_OBJECT(msg_view), signals[ATTACHMENT_CLICKED_SIGNAL],
 264                                0, index);
 265                 return FALSE;
 266         }
 267
 268         g_signal_emit (G_OBJECT(msg_view), signals[LINK_CLICKED_SIGNAL],
 269                        0, uri);
 270
 271         return FALSE;
 272 }
 273
 274
 275
 276 static gboolean
 277 on_link_hover (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
 278 {
 279         if (uri && g_str_has_prefix (uri, ATT_PREFIX))
 280                 return FALSE;
 281
 282         g_signal_emit (G_OBJECT(msg_view), signals[LINK_HOVER_SIGNAL],
 283                        0, uri);
 284
 285         return FALSE;
 286 }
 287
 288
 289
 290 static TnyMimePartIface *
 291 find_cid_image (TnyMsgIface *msg, const gchar *cid)
 292 {
 293         TnyMimePartIface *part = NULL;
 294         TnyListIface *parts;
 295         TnyIteratorIface *iter;
 296
 297         g_return_val_if_fail (msg, NULL);
 298         g_return_val_if_fail (cid, NULL);
 299
 300         parts  = TNY_LIST_IFACE (tny_list_new());
 301
 302         tny_msg_iface_get_parts (msg, parts);
 303         iter   = tny_list_iface_create_iterator (parts);
 304
 305         while (!tny_iterator_iface_is_done(iter)) {
 306                 const gchar *part_cid;
 307                 part = TNY_MIME_PART_IFACE(tny_iterator_iface_current(iter));
 308                 part_cid = tny_mime_part_iface_get_content_id (part);
 309
 310                 if (part_cid && strcmp (cid, part_cid) == 0)
 311                         break;
 312
 313                 part = NULL;
 314                 tny_iterator_iface_next (iter);
 315         }
 316
 317         if (part)
 318                 g_object_ref (G_OBJECT(part));
 319
 320         g_object_unref (G_OBJECT(iter));
 321         g_object_unref (G_OBJECT(parts));
 322
 323         return part;
 324 }
 325
 326
 327 static gboolean
 328 on_url_requested (GtkWidget *widget, const gchar *uri,
 329                   GtkHTMLStream *stream,
 330                   ModestMsgView *msg_view)
 331 {
 332         ModestMsgViewPrivate *priv;
 333         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 334
 335         if (g_str_has_prefix (uri, "cid:")) {
 336                 /* +4 ==> skip "cid:" */
 337                 TnyMimePartIface *part = find_cid_image (priv->msg, uri + 4);
 338                 if (!part) {
 339                         g_printerr ("modest: '%s' not found\n", uri + 4);
 340                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
 341                 } else {
 342                         TnyStreamIface *tny_stream =
 343                                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new(stream));
 344                         tny_mime_part_iface_decode_to_stream ((TnyMimePartIface*)part,
 345                                                                   tny_stream);
 346                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
 347
 348                         g_object_unref (G_OBJECT(tny_stream));
 349                         g_object_unref (G_OBJECT(part));
 350                 }
 351         }
 352
 353         return TRUE;
 354 }
 355
 356
 357 typedef struct  {
 358         guint offset;
 359         guint len;
 360         const gchar* prefix;
 361 } url_match_t;
 362
 363
 364
 365 /* render the attachments as hyperlinks in html */
 366 static gchar*
 367 attachments_as_html (ModestMsgView *self, TnyMsgIface *msg)
 368 {
 369         ModestMsgViewPrivate *priv;
 370         GString *appendix;
 371         TnyListIface *parts;
 372         TnyIteratorIface *iter;
 373         gchar *html;
 374         int index = 0;
 375
 376         if (!msg)
 377                 return NULL;
 378
 379         priv  = MODEST_MSG_VIEW_GET_PRIVATE (self);
 380
 381         parts = TNY_LIST_IFACE(tny_list_new());
 382         tny_msg_iface_get_parts (msg, parts);
 383         iter  = tny_list_iface_create_iterator (parts);
 384
 385         appendix= g_string_new ("");
 386
 387         while (!tny_iterator_iface_is_done(iter)) {
 388                 TnyMimePartIface *part;
 389
 390                 ++index; /* attachment numbers are 1-based */
 391
 392                 part = TNY_MIME_PART_IFACE(tny_iterator_iface_current (iter));
 393
 394                 if (tny_mime_part_iface_is_attachment (part)) {
 395
 396                         const gchar *filename = tny_mime_part_iface_get_filename(part);
 397                         if (!filename)
 398                                 filename = _("attachment");
 399
 400                         g_string_append_printf (appendix, "<a href=\"%s%d\">%s</a> \n",
 401                                                 ATT_PREFIX, index, filename);
 402                 }
 403                 tny_iterator_iface_next (iter);
 404         }
 405         g_object_unref (G_OBJECT(iter));
 406
 407         if (appendix->len == 0)
 408                 return g_string_free (appendix, TRUE);
 409
 410         html = g_strdup_printf ("<strong>%s:</strong> %s\n<hr>",
 411                                 _("Attachments"), appendix->str);
 412         g_string_free (appendix, TRUE);
 413
 414         return html;
 415 }
 416
 417
 418
 419 static void
 420 hyperlinkify_plain_text (GString *txt)
 421 {
 422         GSList *cursor;
 423         GSList *match_list = get_url_matches (txt);
 424
 425         /* we will work backwards, so the offsets stay valid */
 426         for (cursor = match_list; cursor; cursor = cursor->next) {
 427
 428                 url_match_t *match = (url_match_t*) cursor->data;
 429                 gchar *url  = g_strndup (txt->str + match->offset, match->len);
 430                 gchar *repl = NULL; /* replacement  */
 431
 432                 /* the prefix is NULL: use the one that is already there */
 433                 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
 434                                         match->prefix ? match->prefix : "", url, url);
 435
 436                 /* replace the old thing with our hyperlink
 437                  * replacement thing */
 438                 g_string_erase  (txt, match->offset, match->len);
 439                 g_string_insert (txt, match->offset, repl);
 440
 441                 g_free (url);
 442                 g_free (repl);
 443
 444                 g_free (cursor->data);
 445         }
 446
 447         g_slist_free (match_list);
 448 }
 449
 450
 451
 452 static gchar *
 453 convert_to_html (const gchar *data)
 454 {
 455         guint            i;
 456         gboolean         first_space = TRUE;
 457         GString         *html;
 458         gsize           len;
 459
 460         if (!data)
 461                 return NULL;
 462
 463         len = strlen (data);
 464         html = g_string_sized_new (len + 100);  /* just a  guess... */
 465
 466         g_string_append_printf (html,
 467                                 "<html>"
 468                                 "<head>"
 469                                 "<meta http-equiv=\"content-type\""
 470                                 " content=\"text/html; charset=utf8\">"
 471                                 "</head>"
 472                                 "<body><tt>");
 473
 474         /* replace with special html chars where needed*/
 475         for (i = 0; i != len; ++i)  {
 476                 char    kar = data[i];
 477                 switch (kar) {
 478
 479                 case 0:  break; /* ignore embedded \0s */
 480                 case '<' : g_string_append   (html, "&lt;"); break;
 481                 case '>' : g_string_append   (html, "&gt;"); break;
 482                 case '&' : g_string_append   (html, "&quot;"); break;
 483                 case '\n': g_string_append   (html, "<br>\n"); break;
 484                 default:
 485                         if (kar == ' ') {
 486                                 g_string_append (html, first_space ? " " : "&nbsp;");
 487                                 first_space = FALSE;
 488                         } else  if (kar == '\t')
 489                                 g_string_append (html, "&nbsp; &nbsp;&nbsp;");
 490                         else {
 491                                 int charnum = 0;
 492                                 first_space = TRUE;
 493                                 /* optimization trick: accumulate 'normal' chars, then copy */
 494                                 do {
 495                                         kar = data [++charnum + i];
 496
 497                                 } while ((i + charnum < len) &&
 498                                          (kar > '>' || (kar != '<' && kar != '>'
 499                                                         && kar != '&' && kar !=  ' '
 500                                                         && kar != '\n' && kar != '\t')));
 501                                 g_string_append_len (html, &data[i], charnum);
 502                                 i += (charnum  - 1);
 503                         }
 504                 }
 505         }
 506
 507         g_string_append (html, "</tt></body></html>");
 508         hyperlinkify_plain_text (html);
 509
 510         return g_string_free (html, FALSE);
 511 }
 512
 513
 514
 515
 516 static gint
 517 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
 518 {
 519         return match2->offset - match1->offset;
 520 }
 521
 522
 523
 524 /*
 525  * check if the match is inside an existing match... */
 526 static void
 527 chk_partial_match (const url_match_t *match, guint* offset)
 528 {
 529         if (*offset >= match->offset && *offset < match->offset + match->len)
 530                 *offset = -1;
 531 }
 532
 533 static GSList*
 534 get_url_matches (GString *txt)
 535 {
 536         regmatch_t rm;
 537         guint rv, i, offset = 0;
 538         GSList *match_list = NULL;
 539
 540         static UrlMatchPattern patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
 541         const size_t pattern_num = sizeof(patterns)/sizeof(UrlMatchPattern);
 542
 543         /* initalize the regexps */
 544         for (i = 0; i != pattern_num; ++i) {
 545                 patterns[i].preg = g_new0 (regex_t,1);
 546                 g_assert(regcomp (patterns[i].preg, patterns[i].regex,
 547                                   REG_ICASE|REG_EXTENDED|REG_NEWLINE) == 0);
 548         }
 549         /* find all the matches */
 550         for (i = 0; i != pattern_num; ++i) {
 551                 offset     = 0;
 552                 while (1) {
 553                         int test_offset;
 554                         if ((rv = regexec (patterns[i].preg, txt->str + offset, 1, &rm, 0)) != 0) {
 555                                 g_assert (rv == REG_NOMATCH); /* this should not happen */
 556                                 break; /* try next regexp */
 557                         }
 558                         if (rm.rm_so == -1)
 559                                 break;
 560
 561                         /* FIXME: optimize this */
 562                         /* to avoid partial matches on something that was already found... */
 563                         /* check_partial_match will put -1 in the data ptr if that is the case */
 564                         test_offset = offset + rm.rm_so;
 565                         g_slist_foreach (match_list, (GFunc)chk_partial_match, &test_offset);
 566
 567                         /* make a list of our matches (<offset, len, prefix> tupels)*/
 568                         if (test_offset != -1) {
 569                                 url_match_t *match = g_new (url_match_t,1);
 570                                 match->offset = offset + rm.rm_so;
 571                                 match->len    = rm.rm_eo - rm.rm_so;
 572                                 match->prefix = patterns[i].prefix;
 573                                 match_list = g_slist_prepend (match_list, match);
 574                         }
 575                         offset += rm.rm_eo;
 576                 }
 577         }
 578
 579         for (i = 0; i != pattern_num; ++i) {
 580                 regfree (patterns[i].preg);
 581                 g_free  (patterns[i].preg);
 582         } /* don't free patterns itself -- it's static */
 583
 584         /* now sort the list, so the matches are in reverse order of occurence.
 585          * that way, we can do the replacements starting from the end, so we don't need
 586          * to recalculate the offsets
 587          */
 588         match_list = g_slist_sort (match_list,
 589                                    (GCompareFunc)cmp_offsets_reverse);
 590         return match_list;
 591 }
 592
 593
 594
 595 static gboolean
 596 set_html_message (ModestMsgView *self, TnyMimePartIface *tny_body, TnyMsgIface *msg)
 597 {
 598         gchar *html_attachments;
 599         TnyStreamIface *gtkhtml_stream;
 600         ModestMsgViewPrivate *priv;
 601
 602         g_return_val_if_fail (self, FALSE);
 603         g_return_val_if_fail (tny_body, FALSE);
 604
 605         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
 606
 607         gtkhtml_stream =
 608                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new
 609                                  (gtk_html_begin(GTK_HTML(priv->gtkhtml))));
 610
 611         tny_stream_iface_reset (gtkhtml_stream);
 612
 613         html_attachments = attachments_as_html(self, msg);
 614         if (html_attachments) {
 615                 tny_stream_iface_write (gtkhtml_stream, html_attachments,
 616                                         strlen(html_attachments));
 617                 tny_stream_iface_reset (gtkhtml_stream);
 618                 g_free (html_attachments);
 619         }
 620
 621         // FIXME: tinymail
 622         tny_mime_part_iface_decode_to_stream ((TnyMimePartIface*)tny_body,
 623                                                   gtkhtml_stream);
 624
 625         g_object_unref (G_OBJECT(gtkhtml_stream));
 626
 627         return TRUE;
 628 }
 629
 630
 631 /* this is a hack --> we use the tny_text_buffer_stream to
 632  * get the message text, then write to gtkhtml 'by hand' */
 633 static gboolean
 634 set_text_message (ModestMsgView *self, TnyMimePartIface *tny_body, TnyMsgIface *msg)
 635 {
 636         GtkTextBuffer *buf;
 637         GtkTextIter begin, end;
 638         TnyStreamIface* txt_stream, *gtkhtml_stream;
 639         gchar *txt, *html_attachments;
 640         ModestMsgViewPrivate *priv;
 641
 642         g_return_val_if_fail (self, FALSE);
 643         g_return_val_if_fail (tny_body, FALSE);
 644
 645         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
 646
 647         buf            = gtk_text_buffer_new (NULL);
 648         txt_stream     = TNY_STREAM_IFACE(tny_text_buffer_stream_new (buf));
 649
 650         tny_stream_iface_reset (txt_stream);
 651
 652         gtkhtml_stream =
 653                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new
 654                                  (gtk_html_begin(GTK_HTML(priv->gtkhtml))));
 655
 656         html_attachments = attachments_as_html(self, msg);
 657         if (html_attachments) {
 658                 tny_stream_iface_write (gtkhtml_stream, html_attachments,
 659                                         strlen(html_attachments));
 660                 tny_stream_iface_reset (gtkhtml_stream);
 661                 g_free (html_attachments);
 662         }
 663
 664         // FIXME: tinymail
 665         tny_mime_part_iface_decode_to_stream ((TnyMimePartIface*)tny_body,
 666                                                   txt_stream);
 667         tny_stream_iface_reset (txt_stream);
 668
 669         gtk_text_buffer_get_bounds (buf, &begin, &end);
 670         txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
 671         if (txt) {
 672                 gchar *html = convert_to_html (txt);
 673                 tny_stream_iface_write (gtkhtml_stream, html, strlen(html));
 674                 tny_stream_iface_reset (gtkhtml_stream);
 675                 g_free (txt);
 676                 g_free (html);
 677         }
 678
 679         g_object_unref (G_OBJECT(gtkhtml_stream));
 680         g_object_unref (G_OBJECT(txt_stream));
 681         g_object_unref (G_OBJECT(buf));
 682
 683         return TRUE;
 684 }
 685
 686
 687 static gboolean
 688 set_empty_message (ModestMsgView *self)
 689 {
 690         ModestMsgViewPrivate *priv;
 691
 692         g_return_val_if_fail (self, FALSE);
 693         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
 694
 695         gtk_html_load_from_string (GTK_HTML(priv->gtkhtml),
 696                                    "", 1);
 697
 698         return TRUE;
 699 }
 700
 701
 702 gchar *
 703 modest_msg_view_get_selected_text (ModestMsgView *self)
 704 {
 705         ModestMsgViewPrivate *priv;
 706         gchar *sel;
 707         GtkWidget *html;
 708         int len;
 709         GtkClipboard *clip;
 710
 711         g_return_val_if_fail (self, NULL);
 712         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
 713         html = priv->gtkhtml;
 714
 715         /* I'm sure there is a better way to check for selected text */
 716         sel = gtk_html_get_selection_html(GTK_HTML(html), &len);
 717         if (!sel)
 718                 return NULL;
 719
 720         g_free(sel);
 721
 722         clip = gtk_widget_get_clipboard(html, GDK_SELECTION_PRIMARY);
 723         return gtk_clipboard_wait_for_text(clip);
 724 }
 725
 726
 727 void
 728 modest_msg_view_set_message (ModestMsgView *self, TnyMsgIface *msg)
 729 {
 730         TnyMimePartIface *body;
 731         ModestMsgViewPrivate *priv;
 732
 733         g_return_if_fail (self);
 734
 735         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
 736
 737
 738         if (msg != priv->msg) {
 739                 if (priv->msg)
 740                         g_object_unref (G_OBJECT(priv->msg));
 741                 if (msg)
 742                         g_object_ref   (G_OBJECT(msg));
 743                 priv->msg = msg;
 744         }
 745
 746         if (!msg) {
 747                 set_empty_message (self);
 748                 return;
 749         }
 750
 751         body = modest_tny_msg_actions_find_body_part (msg, TRUE);
 752         if (body) {
 753                 if (tny_mime_part_iface_content_type_is (body, "text/html"))
 754                         set_html_message (self, body, msg);
 755                 else
 756                         set_text_message (self, body, msg);
 757                 return;
 758         } else
 759                 set_empty_message (self);
 760 }