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

   1 /* modest-tny-msg-view.c */
   2
   3 /* insert (c)/licensing information) */
   4
   5 #include "modest-tny-msg-view.h"
   6 #include "modest-tny-stream-gtkhtml.h"
   7 #include "modest-tny-msg-actions.h"
   8
   9 #include <tny-text-buffer-stream.h>
  10 #include <string.h>
  11 #include <regex.h>
  12 #include <ctype.h>
  13 #include <glib/gi18n.h>
  14 #include <gtkhtml/gtkhtml.h>
  15 #include <gtkhtml/gtkhtml-stream.h>
  16
  17 /* 'private'/'protected' functions */
  18 static void     modest_tny_msg_view_class_init   (ModestTnyMsgViewClass *klass);
  19 static void     modest_tny_msg_view_init         (ModestTnyMsgView *obj);
  20 static void     modest_tny_msg_view_finalize     (GObject *obj);
  21
  22
  23 static GSList*  get_url_matches (GString *txt);
  24 static gboolean fill_gtkhtml_with_txt (ModestTnyMsgView *self, GtkHTML* gtkhtml, const gchar* txt, TnyMsgIface *msg);
  25
  26 static gboolean on_link_clicked (GtkWidget *widget, const gchar *uri,
  27                                  ModestTnyMsgView *msg_view);
  28 static gboolean on_url_requested (GtkWidget *widget, const gchar *uri,
  29                                   GtkHTMLStream *stream,
  30                                   ModestTnyMsgView *msg_view);
  31 static gchar *construct_virtual_filename(const gchar *filename, const gint position, const gchar *id, const gboolean active);
  32 static gchar *construct_virtual_filename_from_mime_part(TnyMsgMimePartIface *msg, const gint position);
  33 gint virtual_filename_get_pos(const gchar *filename);
  34 /*
  35  * we need these regexps to find URLs in plain text e-mails
  36  */
  37 typedef struct _UrlMatchPattern UrlMatchPattern;
  38 struct _UrlMatchPattern {
  39         gchar   *regex;
  40         regex_t *preg;
  41         gchar   *prefix;
  42
  43 };
  44 #define MAIL_VIEWER_URL_MATCH_PATTERNS  {\
  45         { "(file|http|ftp|https)://[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]+[-A-Za-z0-9_$%&=?/~#]",\
  46           NULL, NULL },\
  47         { "www\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
  48           NULL, "http://" },\
  49         { "ftp\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
  50           NULL, "ftp://" },\
  51         { "(voipto|callto|chatto|jabberto|xmpp):[-_a-z@0-9.\\+]+", \
  52            NULL, NULL},                                             \
  53         { "mailto:[-_a-z0-9.\\+]+@[-_a-z0-9.]+",                    \
  54           NULL, NULL},\
  55         { "[-_a-z0-9.\\+]+@[-_a-z0-9.]+",\
  56           NULL, "mailto:"}\
  57         }
  58
  59
  60 /* list my signals */
  61 enum {
  62         /* MY_SIGNAL_1, */
  63         /* MY_SIGNAL_2, */
  64         LAST_SIGNAL
  65 };
  66
  67 typedef struct _ModestTnyMsgViewPrivate ModestTnyMsgViewPrivate;
  68 struct _ModestTnyMsgViewPrivate {
  69         GtkWidget *gtkhtml;
  70         TnyMsgIface *msg;
  71         ModestConf *conf;
  72 };
  73 #define MODEST_TNY_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  74                                                  MODEST_TYPE_TNY_MSG_VIEW, \
  75                                                  ModestTnyMsgViewPrivate))
  76 /* globals */
  77 static GtkContainerClass *parent_class = NULL;
  78
  79 /* uncomment the following if you have defined any signals */
  80 /* static guint signals[LAST_SIGNAL] = {0}; */
  81
  82 GType
  83 modest_tny_msg_view_get_type (void)
  84 {
  85         static GType my_type = 0;
  86         if (!my_type) {
  87                 static const GTypeInfo my_info = {
  88                         sizeof(ModestTnyMsgViewClass),
  89                         NULL,           /* base init */
  90                         NULL,           /* base finalize */
  91                         (GClassInitFunc) modest_tny_msg_view_class_init,
  92                         NULL,           /* class finalize */
  93                         NULL,           /* class data */
  94                         sizeof(ModestTnyMsgView),
  95                         1,              /* n_preallocs */
  96                         (GInstanceInitFunc) modest_tny_msg_view_init,
  97                 };
  98                 my_type = g_type_register_static (GTK_TYPE_SCROLLED_WINDOW,
  99                                                   "ModestTnyMsgView",
 100                                                   &my_info, 0);
 101         }
 102         return my_type;
 103 }
 104
 105 static void
 106 modest_tny_msg_view_class_init (ModestTnyMsgViewClass *klass)
 107 {
 108         GObjectClass *gobject_class;
 109         gobject_class = (GObjectClass*) klass;
 110
 111         parent_class            = g_type_class_peek_parent (klass);
 112         gobject_class->finalize = modest_tny_msg_view_finalize;
 113
 114         g_type_class_add_private (gobject_class, sizeof(ModestTnyMsgViewPrivate));
 115 }
 116
 117 static void
 118 modest_tny_msg_view_init (ModestTnyMsgView *obj)
 119 {
 120         ModestTnyMsgViewPrivate *priv;
 121
 122         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(obj);
 123
 124         priv->msg = NULL;
 125
 126         priv->gtkhtml = gtk_html_new();
 127
 128         priv->conf = NULL;
 129
 130         gtk_html_set_editable        (GTK_HTML(priv->gtkhtml), FALSE);
 131         gtk_html_allow_selection     (GTK_HTML(priv->gtkhtml), TRUE);
 132         gtk_html_set_caret_mode      (GTK_HTML(priv->gtkhtml), FALSE);
 133         gtk_html_set_blocking        (GTK_HTML(priv->gtkhtml), FALSE);
 134         gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
 135
 136         g_signal_connect (G_OBJECT(priv->gtkhtml), "link_clicked",
 137                           G_CALLBACK(on_link_clicked), obj);
 138
 139         g_signal_connect (G_OBJECT(priv->gtkhtml), "url_requested",
 140                           G_CALLBACK(on_url_requested), obj);
 141 }
 142
 143
 144 static void
 145 modest_tny_msg_view_finalize (GObject *obj)
 146 {
 147
 148 }
 149
 150 GtkWidget*
 151 modest_tny_msg_view_new (TnyMsgIface *msg, ModestConf *conf)
 152 {
 153         GObject *obj;
 154         ModestTnyMsgView* self;
 155         ModestTnyMsgViewPrivate *priv;
 156
 157         obj  = G_OBJECT(g_object_new(MODEST_TYPE_TNY_MSG_VIEW, NULL));
 158         self = MODEST_TNY_MSG_VIEW(obj);
 159         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE (self);
 160
 161         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(self),
 162                                        GTK_POLICY_AUTOMATIC,
 163                                        GTK_POLICY_AUTOMATIC);
 164
 165         if (priv->gtkhtml)
 166                 gtk_container_add (GTK_CONTAINER(obj), priv->gtkhtml);
 167
 168         if (msg)
 169                 modest_tny_msg_view_set_message (self, msg);
 170
 171         priv->conf = conf;
 172
 173         return GTK_WIDGET(self);
 174 }
 175
 176
 177
 178 static gboolean
 179 on_link_clicked (GtkWidget *widget, const gchar *uri,
 180                                  ModestTnyMsgView *msg_view)
 181 {
 182
 183         if (g_str_has_prefix(uri, "attachment:")) {
 184                 /* save or open attachment */
 185                 return TRUE;
 186         }
 187         g_message ("link clicked: %s", uri); /* FIXME */
 188         return FALSE;
 189
 190 }
 191
 192
 193 static TnyMsgMimePartIface *
 194 find_cid_image (TnyMsgIface *msg, const gchar *cid)
 195 {
 196         TnyMsgMimePartIface *part = NULL;
 197         GList *parts;
 198
 199         g_return_val_if_fail (msg, NULL);
 200         g_return_val_if_fail (cid, NULL);
 201
 202         parts  = (GList*) tny_msg_iface_get_parts (msg);
 203         while (parts && !part) {
 204                 const gchar *part_cid;
 205                 part = TNY_MSG_MIME_PART_IFACE(parts->data);
 206                 part_cid = tny_msg_mime_part_iface_get_content_id (part);
 207                 printf("CMP:%s:%s\n", cid, part_cid);
 208                 if (part_cid && strcmp (cid, part_cid) == 0)
 209                         return part; /* we found it! */
 210
 211                 part = NULL;
 212                 parts = parts->next;
 213         }
 214
 215         return part;
 216 }
 217
 218
 219 static TnyMsgMimePartIface *
 220 find_attachment_by_filename (TnyMsgIface *msg, const gchar *fn)
 221 {
 222         TnyMsgMimePartIface *part = NULL;
 223         GList *parts;
 224         gchar *dummy;
 225         gint pos;
 226
 227         g_return_val_if_fail (msg, NULL);
 228         g_return_val_if_fail (fn, NULL);
 229
 230         parts  = (GList*) tny_msg_iface_get_parts (msg);
 231         pos = virtual_filename_get_pos(fn);
 232
 233         if ((pos < 0) || (pos >= g_list_length(parts)))
 234                 return NULL;
 235
 236         part = g_list_nth_data(parts, pos);
 237
 238         dummy = construct_virtual_filename_from_mime_part(part, pos);
 239         if (strcmp(dummy, fn) == 0) {
 240                 g_free(dummy);
 241                 return part;
 242         } else {
 243                 g_free(dummy);
 244                 return NULL;
 245         }
 246 }
 247
 248
 249 static gboolean
 250 on_url_requested (GtkWidget *widget, const gchar *uri,
 251                   GtkHTMLStream *stream,
 252                   ModestTnyMsgView *msg_view)
 253 {
 254
 255         ModestTnyMsgViewPrivate *priv;
 256         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE (msg_view);
 257
 258         g_message ("url requested: %s", uri);
 259
 260         if (g_str_has_prefix (uri, "cid:")) {
 261                 /* +4 ==> skip "cid:" */
 262
 263                 TnyMsgMimePartIface *part = find_cid_image (priv->msg, uri + 4);
 264                 if (!part) {
 265                         g_message ("%s not found", uri + 4);
 266                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
 267                 } else {
 268                         TnyStreamIface *tny_stream =
 269                                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new(stream));
 270                         tny_msg_mime_part_iface_decode_to_stream (part,tny_stream);
 271                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
 272                 }
 273         } else if (g_str_has_prefix (uri, "Attachment:")) {
 274                 TnyMsgMimePartIface *part = find_attachment_by_filename (priv->msg, uri);
 275                 if (!part) {
 276                         g_message ("%s not found", uri);
 277                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
 278                 } else {
 279                         TnyStreamIface *tny_stream =
 280                                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new(stream));
 281                         tny_msg_mime_part_iface_decode_to_stream (part,tny_stream);
 282                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
 283                 }
 284         }
 285         return TRUE;
 286 }
 287
 288
 289
 290
 291 typedef struct  {
 292         guint offset;
 293         guint len;
 294         const gchar* prefix;
 295 } url_match_t;
 296
 297
 298
 299 static gchar *
 300 construct_virtual_filename(const gchar *filename,
 301                            const gint position,
 302                            const gchar *id,
 303                            const gboolean active)
 304 {
 305         GString *s;
 306
 307         if (position < 0)
 308                 return "AttachmentInvalid";
 309
 310         s = g_string_new("");
 311         if (active)
 312                 g_string_append(s, "Attachment:");
 313         else
 314                 g_string_append(s, "attachment:");
 315         g_string_append_printf(s, "%d:", position);
 316         if (id)
 317                 g_string_append(s, id);
 318         g_string_append_c(s, ':');
 319         if (filename)
 320                 g_string_append(s, filename);
 321         g_string_append_c(s, ':');
 322         return g_string_free(s, FALSE);
 323 }
 324
 325
 326 static gchar *
 327 construct_virtual_filename_from_mime_part(TnyMsgMimePartIface *msg, const gint position)
 328 {
 329         const gchar *id, *filename;
 330         const gboolean active = TRUE;
 331
 332         filename = tny_msg_mime_part_iface_get_filename(
 333                                                                         TNY_MSG_MIME_PART_IFACE(msg));
 334         if (!filename)
 335                 filename = "[unknown]";
 336         id = tny_msg_mime_part_iface_get_content_id(
 337                                                                         TNY_MSG_MIME_PART_IFACE(msg));
 338
 339         return construct_virtual_filename(filename, position, id, active);
 340 }
 341
 342 const gchar *
 343 get_next_token(const gchar *s, gint *len)
 344 {
 345         gchar *i1, *i2;
 346         i1 = (char *) s;
 347         i2 = (char *) s;
 348
 349         while (i2[0]) {
 350                 if (i2[0] == ':')
 351                         break;
 352                 i2++;
 353         }
 354         if (!i2[0])
 355                 return NULL;
 356         *len = i2 - i1;
 357         return ++i2;
 358 }
 359
 360 /* maybe I should use libregexp */
 361 gint
 362 virtual_filename_get_pos(const gchar *filename)
 363 {
 364         const gchar *i1, *i2;
 365         gint len, pos;
 366         GString *dummy;
 367
 368         i1 = filename;
 369         i2 = filename;
 370
 371         /* check prefix */
 372         i2 = get_next_token(i2, &len);
 373         if (strncmp(i1, "Attachment", len) != 0)
 374                 return -1;
 375         i1 = i2;
 376
 377         /* get position */
 378         i2 = get_next_token(i2, &len);
 379         if (i2 == NULL)
 380                 return -1;
 381         dummy = g_string_new_len(i1, len);
 382         pos = atoi(dummy->str);
 383         g_string_free(dummy, FALSE);
 384         return pos;
 385 }
 386
 387
 388 static gchar *
 389 attachments_as_html(ModestTnyMsgView *self, TnyMsgIface *msg)
 390 {
 391         ModestTnyMsgViewPrivate *priv;
 392         gboolean attachments_found = FALSE;
 393         GString *appendix;
 394         const GList *attachment_list, *attachment;
 395         const gchar *content_type, *filename, *id;
 396         gchar *virtual_filename;
 397         gboolean show_attachments_inline;
 398
 399         if (!msg)
 400                 return g_malloc0(1);
 401
 402         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE (self);
 403
 404         /* CLEANUP: starting a new HTML may be unsupported */
 405         appendix = g_string_new("<HTML><BODY>\n<hr><h5>Attachments:</h5>\n");
 406
 407         attachment_list = tny_msg_iface_get_parts(msg);
 408         attachment = attachment_list;
 409         while (attachment) {
 410                 filename = "";
 411                 content_type = tny_msg_mime_part_iface_get_content_type(
 412                                                                                 TNY_MSG_MIME_PART_IFACE(attachment->data));
 413                 if (!content_type)
 414                         continue;
 415
 416                 if ((strcmp("image/jpeg", content_type) == 0) ||
 417                         (strcmp("image/gif",  content_type) == 0)) {
 418                         filename = tny_msg_mime_part_iface_get_filename(
 419                                 TNY_MSG_MIME_PART_IFACE(attachment->data));
 420                         if (!filename)
 421                                 filename = "[unknown]";
 422                         else
 423                                 attachments_found = TRUE;
 424                         id = tny_msg_mime_part_iface_get_content_id(
 425                                                                                 TNY_MSG_MIME_PART_IFACE(attachment->data));
 426                         show_attachments_inline = modest_conf_get_bool(priv->conf,
 427                                 MODEST_CONF_MSG_VIEW_SHOW_ATTACHMENTS_INLINE, NULL);
 428                         virtual_filename = construct_virtual_filename(filename,
 429                                 g_list_position((GList *)attachment_list, (GList *) attachment),
 430                                 id, show_attachments_inline);
 431                         printf("VF:%s\n", virtual_filename);
 432                         if (show_attachments_inline) {
 433                                 g_string_append_printf(appendix, "<IMG src=\"%s\">\n<BR>", virtual_filename);
 434                         }
 435                         g_string_append_printf(appendix,
 436                                 "<A href=\"attachment:%s\">%s</A>: %s<BR>\n",
 437                                 filename, filename, content_type);
 438                         g_free(virtual_filename);
 439                 }
 440                 attachment = attachment->next;
 441         }
 442         g_string_append(appendix, "</BODY></HTML>");
 443         if (!attachments_found)
 444                 g_string_assign(appendix, "");
 445         return g_string_free(appendix, FALSE);
 446 }
 447
 448 static void
 449 hyperlinkify_plain_text (GString *txt)
 450 {
 451         GSList *cursor;
 452         GSList *match_list = get_url_matches (txt);
 453
 454         /* we will work backwards, so the offsets stay valid */
 455         for (cursor = match_list; cursor; cursor = cursor->next) {
 456
 457                 url_match_t *match = (url_match_t*) cursor->data;
 458                 gchar *url  = g_strndup (txt->str + match->offset, match->len);
 459                 gchar *repl = NULL; /* replacement  */
 460
 461                 /* the prefix is NULL: use the one that is already there */
 462                 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
 463                                         match->prefix ? match->prefix : "", url, url);
 464
 465                 /* replace the old thing with our hyperlink
 466                  * replacement thing */
 467                 g_string_erase  (txt, match->offset, match->len);
 468                 g_string_insert (txt, match->offset, repl);
 469
 470                 g_free (url);
 471                 g_free (repl);
 472
 473                 g_free (cursor->data);
 474         }
 475
 476         g_slist_free (match_list);
 477 }
 478
 479
 480
 481 static gchar *
 482 convert_to_html (const gchar *data)
 483 {
 484         int              i;
 485         gboolean         first_space = TRUE;
 486         GString         *html;
 487         gsize           len;
 488
 489         if (!data)
 490                 return NULL;
 491
 492         len = strlen (data);
 493         html = g_string_sized_new (len + 100);  /* just a  guess... */
 494
 495         g_string_append_printf (html,
 496                                 "<html>"
 497                                 "<head>"
 498                                 "<meta http-equiv=\"content-type\""
 499                                 " content=\"text/html; charset=utf8\">"
 500                                 "</head>"
 501                                 "<body><tt>");
 502
 503         /* replace with special html chars where needed*/
 504         for (i = 0; i != len; ++i)  {
 505                 char    kar = data[i];
 506                 switch (kar) {
 507
 508                 case 0:  break; /* ignore embedded \0s */
 509                 case '<' : g_string_append   (html, "&lt;"); break;
 510                 case '>' : g_string_append   (html, "&gt;"); break;
 511                 case '&' : g_string_append   (html, "&quot;"); break;
 512                 case '\n': g_string_append   (html, "<br>\n"); break;
 513                 default:
 514                         if (kar == ' ') {
 515                                 g_string_append (html, first_space ? " " : "&nbsp;");
 516                                 first_space = FALSE;
 517                         } else  if (kar == '\t')
 518                                 g_string_append (html, "&nbsp; &nbsp;&nbsp;");
 519                         else {
 520                                 int charnum = 0;
 521                                 first_space = TRUE;
 522                                 /* optimization trick: accumulate 'normal' chars, then copy */
 523                                 do {
 524                                         kar = data [++charnum + i];
 525
 526                                 } while ((i + charnum < len) &&
 527                                          (kar > '>' || (kar != '<' && kar != '>'
 528                                                         && kar != '&' && kar !=  ' '
 529                                                         && kar != '\n' && kar != '\t')));
 530                                 g_string_append_len (html, &data[i], charnum);
 531                                 i += (charnum  - 1);
 532                         }
 533                 }
 534         }
 535
 536         g_string_append (html, "</tt></body></html>");
 537         hyperlinkify_plain_text (html);
 538
 539         return g_string_free (html, FALSE);
 540 }
 541
 542
 543
 544
 545 static gint
 546 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
 547 {
 548         return match2->offset - match1->offset;
 549 }
 550
 551
 552
 553 /*
 554  * check if the match is inside an existing match... */
 555 static void
 556 chk_partial_match (const url_match_t *match, int* offset)
 557 {
 558         if (*offset >= match->offset && *offset < match->offset + match->len)
 559                 *offset = -1;
 560 }
 561
 562 static GSList*
 563 get_url_matches (GString *txt)
 564 {
 565         regmatch_t rm;
 566         int rv, i, offset = 0;
 567         GSList *match_list = NULL;
 568
 569         static UrlMatchPattern patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
 570         const size_t pattern_num = sizeof(patterns)/sizeof(UrlMatchPattern);
 571
 572         /* initalize the regexps */
 573         for (i = 0; i != pattern_num; ++i) {
 574                 patterns[i].preg = g_new0 (regex_t,1);
 575                 g_assert(regcomp (patterns[i].preg, patterns[i].regex,
 576                                   REG_ICASE|REG_EXTENDED|REG_NEWLINE) == 0);
 577         }
 578         /* find all the matches */
 579         for (i = 0; i != pattern_num; ++i) {
 580                 offset     = 0;
 581                 while (1) {
 582                         int test_offset;
 583                         if ((rv = regexec (patterns[i].preg, txt->str + offset, 1, &rm, 0)) != 0) {
 584                                 g_assert (rv == REG_NOMATCH); /* this should not happen */
 585                                 break; /* try next regexp */
 586                         }
 587                         if (rm.rm_so == -1)
 588                                 break;
 589
 590                         /* FIXME: optimize this */
 591                         /* to avoid partial matches on something that was already found... */
 592                         /* check_partial_match will put -1 in the data ptr if that is the case */
 593                         test_offset = offset + rm.rm_so;
 594                         g_slist_foreach (match_list, (GFunc)chk_partial_match, &test_offset);
 595
 596                         /* make a list of our matches (<offset, len, prefix> tupels)*/
 597                         if (test_offset != -1) {
 598                                 url_match_t *match = g_new (url_match_t,1);
 599                                 match->offset = offset + rm.rm_so;
 600                                 match->len    = rm.rm_eo - rm.rm_so;
 601                                 match->prefix = patterns[i].prefix;
 602                                 match_list = g_slist_prepend (match_list, match);
 603                         }
 604                         offset += rm.rm_eo;
 605                 }
 606         }
 607
 608         for (i = 0; i != pattern_num; ++i) {
 609                 regfree (patterns[i].preg);
 610                 g_free  (patterns[i].preg);
 611         } /* don't free patterns itself -- it's static */
 612
 613         /* now sort the list, so the matches are in reverse order of occurence.
 614          * that way, we can do the replacements starting from the end, so we don't need
 615          * to recalculate the offsets
 616          */
 617         match_list = g_slist_sort (match_list,
 618                                    (GCompareFunc)cmp_offsets_reverse);
 619         return match_list;
 620 }
 621
 622 static gboolean
 623 fill_gtkhtml_with_txt (ModestTnyMsgView *self, GtkHTML* gtkhtml, const gchar* txt, TnyMsgIface *msg)
 624 {
 625         GString *html;
 626         gchar *html_attachments;
 627
 628         g_return_val_if_fail (gtkhtml, FALSE);
 629         g_return_val_if_fail (txt, FALSE);
 630
 631         html = g_string_new(convert_to_html (txt));
 632         html_attachments = attachments_as_html(self, msg);
 633         g_string_append(html, html_attachments);
 634
 635         gtk_html_load_from_string (gtkhtml, html->str, html->len);
 636         g_string_free (html, TRUE);
 637         g_free(html_attachments);
 638
 639         return TRUE;
 640 }
 641
 642
 643
 644 static gboolean
 645 set_html_message (ModestTnyMsgView *self, TnyMsgMimePartIface *tny_body, TnyMsgIface *msg)
 646 {
 647         gchar *html_attachments;
 648         TnyStreamIface *gtkhtml_stream;
 649         ModestTnyMsgViewPrivate *priv;
 650
 651         g_return_val_if_fail (self, FALSE);
 652         g_return_val_if_fail (tny_body, FALSE);
 653
 654         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 655
 656         gtkhtml_stream =
 657                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new
 658                                  (gtk_html_begin(GTK_HTML(priv->gtkhtml))));
 659
 660         tny_stream_iface_reset (gtkhtml_stream);
 661         tny_msg_mime_part_iface_decode_to_stream (tny_body, gtkhtml_stream);
 662         html_attachments = attachments_as_html(self, msg);
 663         /* is this clean? */
 664         gtkhtml_write(gtkhtml_stream, html_attachments, strlen(html_attachments));
 665         tny_stream_iface_reset (gtkhtml_stream);
 666
 667         g_object_unref (G_OBJECT(gtkhtml_stream));
 668         g_free (html_attachments);
 669
 670         return TRUE;
 671 }
 672
 673
 674 /* this is a hack --> we use the tny_text_buffer_stream to
 675  * get the message text, then write to gtkhtml 'by hand' */
 676 static gboolean
 677 set_text_message (ModestTnyMsgView *self, TnyMsgMimePartIface *tny_body, TnyMsgIface *msg)
 678 {
 679         GtkTextBuffer *buf;
 680         GtkTextIter begin, end;
 681         TnyStreamIface* txt_stream;
 682         gchar *txt;
 683         ModestTnyMsgViewPrivate *priv;
 684
 685         g_return_val_if_fail (self, FALSE);
 686         g_return_val_if_fail (tny_body, FALSE);
 687
 688         priv           = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 689
 690         buf            = gtk_text_buffer_new (NULL);
 691         txt_stream     = TNY_STREAM_IFACE(tny_text_buffer_stream_new (buf));
 692
 693         tny_stream_iface_reset (txt_stream);
 694         tny_msg_mime_part_iface_decode_to_stream (tny_body, txt_stream);
 695         tny_stream_iface_reset (txt_stream);
 696
 697         gtk_text_buffer_get_bounds (buf, &begin, &end);
 698         txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
 699
 700         fill_gtkhtml_with_txt (self, GTK_HTML(priv->gtkhtml), txt, msg);
 701
 702         g_object_unref (G_OBJECT(txt_stream));
 703         g_object_unref (G_OBJECT(buf));
 704
 705         g_free (txt);
 706         return TRUE;
 707 }
 708
 709 gchar *
 710 modest_tny_msg_view_get_selected_text (ModestTnyMsgView *self)
 711 {
 712         ModestTnyMsgViewPrivate *priv;
 713         gchar *sel;
 714         GtkWidget *html;
 715         int len;
 716         GtkClipboard *clip;
 717
 718         g_return_val_if_fail (self, NULL);
 719         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 720         html = priv->gtkhtml;
 721
 722         /* I'm sure there is a better way to check for selected text */
 723         sel = gtk_html_get_selection_html(GTK_HTML(html), &len);
 724         if (!sel)
 725                 return NULL;
 726
 727         g_free(sel);
 728
 729         clip = gtk_widget_get_clipboard(html, GDK_SELECTION_PRIMARY);
 730         return gtk_clipboard_wait_for_text(clip);
 731 }
 732
 733 void
 734 modest_tny_msg_view_set_message (ModestTnyMsgView *self, TnyMsgIface *msg)
 735 {
 736         TnyMsgMimePartIface *body;
 737         ModestTnyMsgViewPrivate *priv;
 738
 739         g_return_if_fail (self);
 740
 741         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 742
 743         priv->msg = msg;
 744
 745         fill_gtkhtml_with_txt (self, GTK_HTML(priv->gtkhtml), "", msg);
 746
 747         if (!msg)
 748                 return;
 749
 750         body = modest_tny_msg_actions_find_body_part (msg, "text/html");
 751         if (body) {
 752                 set_html_message (self, body, msg);
 753                 return;
 754         }
 755
 756         body = modest_tny_msg_actions_find_body_part (msg, "text/plain");
 757         if (body) {
 758                 set_text_message (self, body, msg);
 759                 return;
 760         }
 761
 762         /* hmmmmm */
 763         fill_gtkhtml_with_txt (self, GTK_HTML(priv->gtkhtml),
 764                                 _("Unsupported message type"), msg);
 765 }
 766
 767 void
 768 modest_tny_msg_view_redraw (ModestTnyMsgView *self)
 769 {
 770         ModestTnyMsgViewPrivate *priv;
 771
 772         g_return_if_fail (self);
 773         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 774         modest_tny_msg_view_set_message(self, priv->msg);
 775 }