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
  34 #define ATTACHMENT_ID_INLINE "attachment-inline"
  35 #define ATTACHMENT_ID_LINK "attachment-link"
  36
  37 gint virtual_filename_get_pos(const gchar *filename);
  38 /*
  39  * we need these regexps to find URLs in plain text e-mails
  40  */
  41 typedef struct _UrlMatchPattern UrlMatchPattern;
  42 struct _UrlMatchPattern {
  43         gchar   *regex;
  44         regex_t *preg;
  45         gchar   *prefix;
  46
  47 };
  48 #define MAIL_VIEWER_URL_MATCH_PATTERNS  {\
  49         { "(file|http|ftp|https)://[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]+[-A-Za-z0-9_$%&=?/~#]",\
  50           NULL, NULL },\
  51         { "www\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
  52           NULL, "http://" },\
  53         { "ftp\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
  54           NULL, "ftp://" },\
  55         { "(voipto|callto|chatto|jabberto|xmpp):[-_a-z@0-9.\\+]+", \
  56            NULL, NULL},                                             \
  57         { "mailto:[-_a-z0-9.\\+]+@[-_a-z0-9.]+",                    \
  58           NULL, NULL},\
  59         { "[-_a-z0-9.\\+]+@[-_a-z0-9.]+",\
  60           NULL, "mailto:"}\
  61         }
  62
  63
  64 /* list my signals */
  65 enum {
  66         /* MY_SIGNAL_1, */
  67         /* MY_SIGNAL_2, */
  68         LAST_SIGNAL
  69 };
  70
  71 typedef struct _ModestTnyMsgViewPrivate ModestTnyMsgViewPrivate;
  72 struct _ModestTnyMsgViewPrivate {
  73         GtkWidget *gtkhtml;
  74         TnyMsgIface *msg;
  75         gboolean show_attachments_inline;
  76 };
  77 #define MODEST_TNY_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  78                                                  MODEST_TYPE_TNY_MSG_VIEW, \
  79                                                  ModestTnyMsgViewPrivate))
  80 /* globals */
  81 static GtkContainerClass *parent_class = NULL;
  82
  83 /* uncomment the following if you have defined any signals */
  84 /* static guint signals[LAST_SIGNAL] = {0}; */
  85
  86 GType
  87 modest_tny_msg_view_get_type (void)
  88 {
  89         static GType my_type = 0;
  90         if (!my_type) {
  91                 static const GTypeInfo my_info = {
  92                         sizeof(ModestTnyMsgViewClass),
  93                         NULL,           /* base init */
  94                         NULL,           /* base finalize */
  95                         (GClassInitFunc) modest_tny_msg_view_class_init,
  96                         NULL,           /* class finalize */
  97                         NULL,           /* class data */
  98                         sizeof(ModestTnyMsgView),
  99                         1,              /* n_preallocs */
 100                         (GInstanceInitFunc) modest_tny_msg_view_init,
 101                 };
 102                 my_type = g_type_register_static (GTK_TYPE_SCROLLED_WINDOW,
 103                                                   "ModestTnyMsgView",
 104                                                   &my_info, 0);
 105         }
 106         return my_type;
 107 }
 108
 109 static void
 110 modest_tny_msg_view_class_init (ModestTnyMsgViewClass *klass)
 111 {
 112         GObjectClass *gobject_class;
 113         gobject_class = (GObjectClass*) klass;
 114
 115         parent_class            = g_type_class_peek_parent (klass);
 116         gobject_class->finalize = modest_tny_msg_view_finalize;
 117
 118         g_type_class_add_private (gobject_class, sizeof(ModestTnyMsgViewPrivate));
 119 }
 120
 121 static void
 122 modest_tny_msg_view_init (ModestTnyMsgView *obj)
 123 {
 124         ModestTnyMsgViewPrivate *priv;
 125
 126         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(obj);
 127
 128         priv->msg = NULL;
 129
 130         priv->gtkhtml = gtk_html_new();
 131
 132         priv->show_attachments_inline = FALSE;
 133
 134         gtk_html_set_editable        (GTK_HTML(priv->gtkhtml), FALSE);
 135         gtk_html_allow_selection     (GTK_HTML(priv->gtkhtml), TRUE);
 136         gtk_html_set_caret_mode      (GTK_HTML(priv->gtkhtml), FALSE);
 137         gtk_html_set_blocking        (GTK_HTML(priv->gtkhtml), FALSE);
 138         gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
 139
 140         g_signal_connect (G_OBJECT(priv->gtkhtml), "link_clicked",
 141                           G_CALLBACK(on_link_clicked), obj);
 142
 143         g_signal_connect (G_OBJECT(priv->gtkhtml), "url_requested",
 144                           G_CALLBACK(on_url_requested), obj);
 145 }
 146
 147
 148 static void
 149 modest_tny_msg_view_finalize (GObject *obj)
 150 {
 151         /* TODO! */
 152 }
 153
 154 GtkWidget*
 155 modest_tny_msg_view_new (TnyMsgIface *msg, const gboolean show_attachments_inline)
 156 {
 157         GObject *obj;
 158         ModestTnyMsgView* self;
 159         ModestTnyMsgViewPrivate *priv;
 160
 161         obj  = G_OBJECT(g_object_new(MODEST_TYPE_TNY_MSG_VIEW, NULL));
 162         self = MODEST_TNY_MSG_VIEW(obj);
 163         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE (self);
 164
 165         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(self),
 166                                        GTK_POLICY_AUTOMATIC,
 167                                        GTK_POLICY_AUTOMATIC);
 168
 169         if (priv->gtkhtml)
 170                 gtk_container_add (GTK_CONTAINER(obj), priv->gtkhtml);
 171         else
 172                 g_error("argh1");
 173
 174         if (msg)
 175                 modest_tny_msg_view_set_message (self, msg);
 176
 177         modest_tny_msg_view_set_show_attachments_inline_flag(self, show_attachments_inline);
 178
 179         return GTK_WIDGET(self);
 180 }
 181
 182
 183 static gboolean
 184 on_link_clicked (GtkWidget *widget, const gchar *uri,
 185                                  ModestTnyMsgView *msg_view)
 186 {
 187
 188         if (g_str_has_prefix(uri, ATTACHMENT_ID_LINK)) {
 189                 /* save or open attachment */
 190                 g_message ("link-to-save: %s", uri); /* FIXME */
 191                 return TRUE;
 192         }
 193         g_message ("link clicked: %s", uri); /* FIXME */
 194         return FALSE;
 195
 196 }
 197
 198
 199 static TnyMsgMimePartIface *
 200 find_cid_image (TnyMsgIface *msg, const gchar *cid)
 201 {
 202         TnyMsgMimePartIface *part = NULL;
 203         GList *parts;
 204
 205         g_return_val_if_fail (msg, NULL);
 206         g_return_val_if_fail (cid, NULL);
 207
 208         parts  = (GList*) tny_msg_iface_get_parts (msg);
 209         while (parts && !part) {
 210                 const gchar *part_cid;
 211                 part = TNY_MSG_MIME_PART_IFACE(parts->data);
 212                 part_cid = tny_msg_mime_part_iface_get_content_id (part);
 213                 printf("CMP:%s:%s\n", cid, part_cid);
 214                 if (part_cid && strcmp (cid, part_cid) == 0)
 215                         return part; /* we found it! */
 216
 217                 part = NULL;
 218                 parts = parts->next;
 219         }
 220
 221         return part;
 222 }
 223
 224
 225 static TnyMsgMimePartIface *
 226 find_attachment_by_filename (TnyMsgIface *msg, const gchar *fn)
 227 {
 228         TnyMsgMimePartIface *part = NULL;
 229         GList *parts;
 230         gchar *dummy;
 231         gint pos;
 232
 233         g_return_val_if_fail (msg, NULL);
 234         g_return_val_if_fail (fn, NULL);
 235
 236         parts  = (GList*) tny_msg_iface_get_parts (msg);
 237         pos = virtual_filename_get_pos(fn);
 238
 239         if ((pos < 0) || (pos >= g_list_length(parts)))
 240                 return NULL;
 241
 242         part = g_list_nth_data(parts, pos);
 243
 244         dummy = construct_virtual_filename_from_mime_part(part, pos);
 245         if (strcmp(dummy, fn) == 0) {
 246                 g_free(dummy);
 247                 return part;
 248         } else {
 249                 g_free(dummy);
 250                 return NULL;
 251         }
 252 }
 253
 254
 255 static gboolean
 256 on_url_requested (GtkWidget *widget, const gchar *uri,
 257                   GtkHTMLStream *stream,
 258                   ModestTnyMsgView *msg_view)
 259 {
 260
 261         ModestTnyMsgViewPrivate *priv;
 262         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE (msg_view);
 263
 264         g_message ("url requested: %s", uri);
 265
 266         if (!modest_tny_msg_view_get_show_attachments_inline_flag(msg_view))
 267                 return TRUE; /* debatable */
 268
 269         if (g_str_has_prefix (uri, "cid:")) {
 270                 /* +4 ==> skip "cid:" */
 271
 272                 TnyMsgMimePartIface *part = find_cid_image (priv->msg, uri + 4);
 273                 if (!part) {
 274                         g_message ("%s not found", uri + 4);
 275                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
 276                 } else {
 277                         TnyStreamIface *tny_stream =
 278                                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new(stream));
 279                         tny_msg_mime_part_iface_decode_to_stream (part,tny_stream);
 280                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
 281                 }
 282         } else if (g_str_has_prefix (uri, ATTACHMENT_ID_INLINE)) {
 283                 TnyMsgMimePartIface *part;
 284                 part = find_attachment_by_filename (priv->msg, uri);
 285                 if (!part) {
 286                         g_message ("%s not found", uri);
 287                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
 288                 } else {
 289                         TnyStreamIface *tny_stream =
 290                                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new(stream));
 291                         tny_msg_mime_part_iface_decode_to_stream (part,tny_stream);
 292                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
 293                 }
 294         }
 295         return TRUE;
 296 }
 297
 298
 299 typedef struct  {
 300         guint offset;
 301         guint len;
 302         const gchar* prefix;
 303 } url_match_t;
 304
 305
 306 static gchar *
 307 secure_filename(const gchar *fn)
 308 {
 309         gchar *tmp, *p;
 310         GString *s;
 311
 312         s = g_string_new("");
 313 #if 1 || DEBUG
 314         tmp = g_strdup(fn);
 315         for (p = tmp; p[0] ; p++ ) {
 316                 p[0] &= 0x5f; /* 01011111 */
 317                 p[0] |= 0x40; /* 01000000 */
 318         }
 319         g_string_printf(s, "0x%x:%s", g_str_hash(fn), tmp);
 320         g_free(tmp);
 321         return g_string_free(s, FALSE);
 322 #else
 323         g_string_printf(s, "0x%x", g_str_hash(fn));
 324         return g_string_free(s, FALSE);
 325 #endif
 326 }
 327
 328
 329 static gchar *
 330 construct_virtual_filename(const gchar *filename,
 331                            const gint position,
 332                            const gchar *id,
 333                            const gboolean active)
 334 {
 335         GString *s;
 336         gchar *fn;
 337
 338         if (position < 0)
 339                 return g_strdup("AttachmentInvalid");
 340
 341         s = g_string_new("");
 342         if (active)
 343                 g_string_append(s, ATTACHMENT_ID_INLINE);
 344         else
 345                 g_string_append(s, ATTACHMENT_ID_LINK);
 346         g_string_append_printf(s, ":%d:", position);
 347         if (id)
 348                 g_string_append(s, id);
 349         g_string_append_c(s, ':');
 350
 351         fn = secure_filename(filename);
 352         if (fn)
 353                 g_string_append(s, fn);
 354         g_free(fn);
 355         g_string_append_c(s, ':');
 356         return g_string_free(s, FALSE);
 357 }
 358
 359
 360 static gchar *
 361 construct_virtual_filename_from_mime_part(TnyMsgMimePartIface *msg, const gint position)
 362 {
 363         const gchar *id, *filename;
 364         const gboolean active = TRUE;
 365
 366         filename = tny_msg_mime_part_iface_get_filename(
 367                                                                         TNY_MSG_MIME_PART_IFACE(msg));
 368         if (!filename)
 369                 filename = "[unknown]";
 370         id = tny_msg_mime_part_iface_get_content_id(
 371                                                                         TNY_MSG_MIME_PART_IFACE(msg));
 372
 373         return construct_virtual_filename(filename, position, id, active);
 374 }
 375
 376 const gchar *
 377 get_next_token(const gchar *s, gint *len)
 378 {
 379         gchar *i1, *i2;
 380         i1 = (char *) s;
 381         i2 = (char *) s;
 382
 383         while (i2[0]) {
 384                 if (i2[0] == ':')
 385                         break;
 386                 i2++;
 387         }
 388         if (!i2[0])
 389                 return NULL;
 390         *len = i2 - i1;
 391         return ++i2;
 392 }
 393
 394 /* maybe I should use libregexp */
 395 gint
 396 virtual_filename_get_pos(const gchar *filename)
 397 {
 398         const gchar *i1, *i2;
 399         gint len, pos;
 400         GString *dummy;
 401
 402         /* check prefix */
 403         if ((!g_str_has_prefix(filename, ATTACHMENT_ID_INLINE ":")) &&
 404             (!g_str_has_prefix(filename, ATTACHMENT_ID_LINK ":")))
 405                 return -1;
 406
 407         i2 = filename;
 408         i2 = get_next_token(i2, &len);
 409         i1 = i2;
 410
 411         /* get position */
 412         i2 = get_next_token(i2, &len);
 413         if (i2 == NULL)
 414                 return -1;
 415         dummy = g_string_new_len(i1, len);
 416         pos = atoi(dummy->str);
 417         g_string_free(dummy, FALSE);
 418         return pos;
 419 }
 420
 421
 422 static gchar *
 423 attachments_as_html(ModestTnyMsgView *self, TnyMsgIface *msg)
 424 {
 425         ModestTnyMsgViewPrivate *priv;
 426         gboolean attachments_found = FALSE;
 427         GString *appendix;
 428         const GList *attachment_list, *attachment;
 429         const gchar *content_type, *filename, *id;
 430         gchar *virtual_filename;
 431
 432         if (!msg)
 433                 return g_malloc0(1);
 434
 435         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE (self);
 436
 437         appendix = g_string_new("");
 438         g_string_printf(appendix, "<HTML><BODY>\n<hr><h5>%s:</h5>\n", _("Attachments"));
 439
 440         attachment_list = tny_msg_iface_get_parts(msg);
 441         attachment = attachment_list;
 442         while (attachment) {
 443                 filename = "";
 444                 content_type = tny_msg_mime_part_iface_get_content_type(
 445                                                                                 TNY_MSG_MIME_PART_IFACE(attachment->data));
 446                 if (!content_type)
 447                         continue;
 448
 449                 if ((strcmp("image/jpeg", content_type) == 0) ||
 450                         (strcmp("image/gif",  content_type) == 0)) {
 451                         filename = tny_msg_mime_part_iface_get_filename(
 452                                 TNY_MSG_MIME_PART_IFACE(attachment->data));
 453                         if (!filename)
 454                                 filename = "[unknown]";
 455                         else
 456                                 attachments_found = TRUE;
 457                         id = tny_msg_mime_part_iface_get_content_id(
 458                                                                                 TNY_MSG_MIME_PART_IFACE(attachment->data));
 459                         if (modest_tny_msg_view_get_show_attachments_inline_flag(self)) {
 460                                 virtual_filename = construct_virtual_filename(filename,
 461                                         g_list_position((GList *)attachment_list, (GList *) attachment),
 462                                         id, TRUE);
 463                                 g_string_append_printf(appendix, "<IMG src=\"%s\">\n<BR>", virtual_filename);
 464                                 g_free(virtual_filename);
 465                         }
 466                         virtual_filename = construct_virtual_filename(filename,
 467                                         g_list_position((GList *)attachment_list, (GList *) attachment),
 468                                         id, FALSE);
 469                         g_string_append_printf(appendix,
 470                                 "<A href=\"%s\">%s</A>: %s<BR>\n",
 471                                 virtual_filename, filename, content_type);
 472                         g_free(virtual_filename);
 473                 }
 474                 attachment = attachment->next;
 475         }
 476         g_string_append(appendix, "</BODY></HTML>");
 477         if (!attachments_found)
 478                 g_string_assign(appendix, "");
 479         return g_string_free(appendix, FALSE);
 480 }
 481
 482 static void
 483 hyperlinkify_plain_text (GString *txt)
 484 {
 485         GSList *cursor;
 486         GSList *match_list = get_url_matches (txt);
 487
 488         /* we will work backwards, so the offsets stay valid */
 489         for (cursor = match_list; cursor; cursor = cursor->next) {
 490
 491                 url_match_t *match = (url_match_t*) cursor->data;
 492                 gchar *url  = g_strndup (txt->str + match->offset, match->len);
 493                 gchar *repl = NULL; /* replacement  */
 494
 495                 /* the prefix is NULL: use the one that is already there */
 496                 repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
 497                                         match->prefix ? match->prefix : "", url, url);
 498
 499                 /* replace the old thing with our hyperlink
 500                  * replacement thing */
 501                 g_string_erase  (txt, match->offset, match->len);
 502                 g_string_insert (txt, match->offset, repl);
 503
 504                 g_free (url);
 505                 g_free (repl);
 506
 507                 g_free (cursor->data);
 508         }
 509
 510         g_slist_free (match_list);
 511 }
 512
 513
 514
 515 static gchar *
 516 convert_to_html (const gchar *data)
 517 {
 518         int              i;
 519         gboolean         first_space = TRUE;
 520         GString         *html;
 521         gsize           len;
 522
 523         if (!data)
 524                 return NULL;
 525
 526         len = strlen (data);
 527         html = g_string_sized_new (len + 100);  /* just a  guess... */
 528
 529         g_string_append_printf (html,
 530                                 "<html>"
 531                                 "<head>"
 532                                 "<meta http-equiv=\"content-type\""
 533                                 " content=\"text/html; charset=utf8\">"
 534                                 "</head>"
 535                                 "<body><tt>");
 536
 537         /* replace with special html chars where needed*/
 538         for (i = 0; i != len; ++i)  {
 539                 char    kar = data[i];
 540                 switch (kar) {
 541
 542                 case 0:  break; /* ignore embedded \0s */
 543                 case '<' : g_string_append   (html, "&lt;"); break;
 544                 case '>' : g_string_append   (html, "&gt;"); break;
 545                 case '&' : g_string_append   (html, "&quot;"); break;
 546                 case '\n': g_string_append   (html, "<br>\n"); break;
 547                 default:
 548                         if (kar == ' ') {
 549                                 g_string_append (html, first_space ? " " : "&nbsp;");
 550                                 first_space = FALSE;
 551                         } else  if (kar == '\t')
 552                                 g_string_append (html, "&nbsp; &nbsp;&nbsp;");
 553                         else {
 554                                 int charnum = 0;
 555                                 first_space = TRUE;
 556                                 /* optimization trick: accumulate 'normal' chars, then copy */
 557                                 do {
 558                                         kar = data [++charnum + i];
 559
 560                                 } while ((i + charnum < len) &&
 561                                          (kar > '>' || (kar != '<' && kar != '>'
 562                                                         && kar != '&' && kar !=  ' '
 563                                                         && kar != '\n' && kar != '\t')));
 564                                 g_string_append_len (html, &data[i], charnum);
 565                                 i += (charnum  - 1);
 566                         }
 567                 }
 568         }
 569
 570         g_string_append (html, "</tt></body></html>");
 571         hyperlinkify_plain_text (html);
 572
 573         return g_string_free (html, FALSE);
 574 }
 575
 576
 577
 578
 579 static gint
 580 cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
 581 {
 582         return match2->offset - match1->offset;
 583 }
 584
 585
 586
 587 /*
 588  * check if the match is inside an existing match... */
 589 static void
 590 chk_partial_match (const url_match_t *match, int* offset)
 591 {
 592         if (*offset >= match->offset && *offset < match->offset + match->len)
 593                 *offset = -1;
 594 }
 595
 596 static GSList*
 597 get_url_matches (GString *txt)
 598 {
 599         regmatch_t rm;
 600         int rv, i, offset = 0;
 601         GSList *match_list = NULL;
 602
 603         static UrlMatchPattern patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
 604         const size_t pattern_num = sizeof(patterns)/sizeof(UrlMatchPattern);
 605
 606         /* initalize the regexps */
 607         for (i = 0; i != pattern_num; ++i) {
 608                 patterns[i].preg = g_new0 (regex_t,1);
 609                 g_assert(regcomp (patterns[i].preg, patterns[i].regex,
 610                                   REG_ICASE|REG_EXTENDED|REG_NEWLINE) == 0);
 611         }
 612         /* find all the matches */
 613         for (i = 0; i != pattern_num; ++i) {
 614                 offset     = 0;
 615                 while (1) {
 616                         int test_offset;
 617                         if ((rv = regexec (patterns[i].preg, txt->str + offset, 1, &rm, 0)) != 0) {
 618                                 g_assert (rv == REG_NOMATCH); /* this should not happen */
 619                                 break; /* try next regexp */
 620                         }
 621                         if (rm.rm_so == -1)
 622                                 break;
 623
 624                         /* FIXME: optimize this */
 625                         /* to avoid partial matches on something that was already found... */
 626                         /* check_partial_match will put -1 in the data ptr if that is the case */
 627                         test_offset = offset + rm.rm_so;
 628                         g_slist_foreach (match_list, (GFunc)chk_partial_match, &test_offset);
 629
 630                         /* make a list of our matches (<offset, len, prefix> tupels)*/
 631                         if (test_offset != -1) {
 632                                 url_match_t *match = g_new (url_match_t,1);
 633                                 match->offset = offset + rm.rm_so;
 634                                 match->len    = rm.rm_eo - rm.rm_so;
 635                                 match->prefix = patterns[i].prefix;
 636                                 match_list = g_slist_prepend (match_list, match);
 637                         }
 638                         offset += rm.rm_eo;
 639                 }
 640         }
 641
 642         for (i = 0; i != pattern_num; ++i) {
 643                 regfree (patterns[i].preg);
 644                 g_free  (patterns[i].preg);
 645         } /* don't free patterns itself -- it's static */
 646
 647         /* now sort the list, so the matches are in reverse order of occurence.
 648          * that way, we can do the replacements starting from the end, so we don't need
 649          * to recalculate the offsets
 650          */
 651         match_list = g_slist_sort (match_list,
 652                                    (GCompareFunc)cmp_offsets_reverse);
 653         return match_list;
 654 }
 655
 656 static gboolean
 657 fill_gtkhtml_with_txt (ModestTnyMsgView *self, GtkHTML* gtkhtml, const gchar* txt, TnyMsgIface *msg)
 658 {
 659         GString *html;
 660         gchar *html_attachments;
 661
 662         g_return_val_if_fail (gtkhtml, FALSE);
 663         g_return_val_if_fail (txt, FALSE);
 664
 665         html = g_string_new(convert_to_html (txt));
 666         html_attachments = attachments_as_html(self, msg);
 667         g_string_append(html, html_attachments);
 668
 669         gtk_html_load_from_string (gtkhtml, html->str, html->len);
 670         g_string_free (html, TRUE);
 671         g_free(html_attachments);
 672
 673         return TRUE;
 674 }
 675
 676
 677
 678 static gboolean
 679 set_html_message (ModestTnyMsgView *self, TnyMsgMimePartIface *tny_body, TnyMsgIface *msg)
 680 {
 681         gchar *html_attachments;
 682         TnyStreamIface *gtkhtml_stream;
 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         gtkhtml_stream =
 691                 TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new
 692                                  (gtk_html_begin(GTK_HTML(priv->gtkhtml))));
 693
 694         tny_stream_iface_reset (gtkhtml_stream);
 695         tny_msg_mime_part_iface_decode_to_stream (tny_body, gtkhtml_stream);
 696         html_attachments = attachments_as_html(self, msg);
 697         tny_stream_iface_write (gtkhtml_stream, html_attachments, strlen(html_attachments));
 698         tny_stream_iface_reset (gtkhtml_stream);
 699
 700         g_object_unref (G_OBJECT(gtkhtml_stream));
 701         g_free (html_attachments);
 702
 703         return TRUE;
 704 }
 705
 706
 707 /* this is a hack --> we use the tny_text_buffer_stream to
 708  * get the message text, then write to gtkhtml 'by hand' */
 709 static gboolean
 710 set_text_message (ModestTnyMsgView *self, TnyMsgMimePartIface *tny_body, TnyMsgIface *msg)
 711 {
 712         GtkTextBuffer *buf;
 713         GtkTextIter begin, end;
 714         TnyStreamIface* txt_stream;
 715         gchar *txt;
 716         ModestTnyMsgViewPrivate *priv;
 717
 718         g_return_val_if_fail (self, FALSE);
 719         g_return_val_if_fail (tny_body, FALSE);
 720
 721         priv           = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 722
 723         buf            = gtk_text_buffer_new (NULL);
 724         txt_stream     = TNY_STREAM_IFACE(tny_text_buffer_stream_new (buf));
 725
 726         tny_stream_iface_reset (txt_stream);
 727         tny_msg_mime_part_iface_decode_to_stream (tny_body, txt_stream);
 728         tny_stream_iface_reset (txt_stream);
 729
 730         gtk_text_buffer_get_bounds (buf, &begin, &end);
 731         txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
 732
 733         fill_gtkhtml_with_txt (self, GTK_HTML(priv->gtkhtml), txt, msg);
 734
 735         g_object_unref (G_OBJECT(txt_stream));
 736         g_object_unref (G_OBJECT(buf));
 737
 738         g_free (txt);
 739         return TRUE;
 740 }
 741
 742 gchar *
 743 modest_tny_msg_view_get_selected_text (ModestTnyMsgView *self)
 744 {
 745         ModestTnyMsgViewPrivate *priv;
 746         gchar *sel;
 747         GtkWidget *html;
 748         int len;
 749         GtkClipboard *clip;
 750
 751         g_return_val_if_fail (self, NULL);
 752         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 753         html = priv->gtkhtml;
 754
 755         /* I'm sure there is a better way to check for selected text */
 756         sel = gtk_html_get_selection_html(GTK_HTML(html), &len);
 757         if (!sel)
 758                 return NULL;
 759
 760         g_free(sel);
 761
 762         clip = gtk_widget_get_clipboard(html, GDK_SELECTION_PRIMARY);
 763         return gtk_clipboard_wait_for_text(clip);
 764 }
 765
 766 void
 767 modest_tny_msg_view_set_message (ModestTnyMsgView *self, TnyMsgIface *msg)
 768 {
 769         TnyMsgMimePartIface *body;
 770         ModestTnyMsgViewPrivate *priv;
 771
 772         g_return_if_fail (self);
 773
 774         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 775
 776         priv->msg = msg;
 777
 778         fill_gtkhtml_with_txt (self, GTK_HTML(priv->gtkhtml), "", msg);
 779
 780         if (!msg)
 781                 return;
 782
 783         body = modest_tny_msg_actions_find_body_part (msg, "text/html");
 784         if (body) {
 785                 set_html_message (self, body, msg);
 786                 return;
 787         }
 788
 789         body = modest_tny_msg_actions_find_body_part (msg, "text/plain");
 790         if (body) {
 791                 set_text_message (self, body, msg);
 792                 return;
 793         }
 794
 795         /* hmmmmm */
 796         fill_gtkhtml_with_txt (self, GTK_HTML(priv->gtkhtml),
 797                                 _("Unsupported message type"), msg);
 798 }
 799
 800 void
 801 modest_tny_msg_view_redraw (ModestTnyMsgView *self)
 802 {
 803         ModestTnyMsgViewPrivate *priv;
 804
 805         g_return_if_fail (self);
 806         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 807         modest_tny_msg_view_set_message(self, priv->msg);
 808 }
 809
 810 gboolean
 811 modest_tny_msg_view_get_show_attachments_inline_flag (ModestTnyMsgView *self)
 812 {
 813         ModestTnyMsgViewPrivate *priv;
 814
 815         g_return_val_if_fail (self, FALSE);
 816         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 817         return priv->show_attachments_inline;
 818 }
 819
 820 gboolean
 821 modest_tny_msg_view_set_show_attachments_inline_flag (ModestTnyMsgView *self, gboolean flag)
 822 {
 823         ModestTnyMsgViewPrivate *priv;
 824         gboolean oldflag;
 825
 826         g_return_val_if_fail (self, FALSE);
 827         priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
 828         oldflag = priv->show_attachments_inline;
 829         priv->show_attachments_inline = flag;
 830         if (priv->show_attachments_inline != oldflag)
 831                 modest_tny_msg_view_redraw(self);
 832         return priv->show_attachments_inline;
 833 }