+
+ if (msg)
+ modest_tny_msg_view_set_message (self, msg);
+
+ return GTK_WIDGET(self);
+}
+
+
+
+
+typedef struct {
+ guint offset;
+ guint len;
+ const gchar* prefix;
+} url_match_t;
+
+
+static void
+hyperlinkify_plain_text (GString *txt)
+{
+ GSList *cursor;
+ GSList *match_list = get_url_matches (txt);
+
+ /* we will work backwards, so the offsets stay valid */
+ for (cursor = match_list; cursor; cursor = cursor->next) {
+
+ url_match_t *match = (url_match_t*) cursor->data;
+ gchar *url = g_strndup (txt->str + match->offset, match->len);
+ gchar *repl = NULL; /* replacement */
+
+ /* the prefix is NULL: use the one that is already there */
+ repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
+ match->prefix ? match->prefix : "", url, url);
+
+ /* replace the old thing with our hyperlink
+ * replacement thing */
+ g_string_erase (txt, match->offset, match->len);
+ g_string_insert (txt, match->offset, repl);
+
+ g_free (url);
+ g_free (repl);
+
+ }
+ g_slist_free (match_list);
+}
+
+
+
+static gchar *
+convert_to_html (gchar *data)
+{
+ int i;
+ gboolean first_space = TRUE;
+ GString *html;
+ gsize len;
+
+ if (!data)
+ return NULL;
+
+ len = strlen (data);
+ html = g_string_sized_new (len + 100); /* just a guess... */
+
+ g_string_append_printf (html,
+ "<html>"
+ "<head>"
+ "<meta http-equiv=\"content-type\""
+ " content=\"text/html; charset=utf8\">"
+ "</head>"
+ "<body><tt>");
+
+ /* replace with special html chars where needed*/
+ for (i = 0; i != len; ++i) {
+ char kar = data[i];
+ switch (kar) {
+
+ case 0: break; /* ignore embedded \0s */
+ case '<' : g_string_append (html, "<"); break;
+ case '>' : g_string_append (html, ">"); break;
+ case '&' : g_string_append (html, """); break;
+ case '\n': g_string_append (html, "<br>\n"); break;
+ default:
+ if (kar == ' ') {
+ g_string_append (html, first_space ? " " : " ");
+ first_space = FALSE;
+ } else if (kar == '\t')
+ g_string_append (html, " ");
+ else {
+ int charnum = 0;
+ first_space = TRUE;
+ /* optimization trick: accumulate 'normal' chars, then copy */
+ do {
+ kar = data [++charnum + i];
+
+ } while ((i + charnum < len) &&
+ (kar > '>' || (kar != '<' && kar != '>'
+ && kar != '&' && kar != ' '
+ && kar != '\n' && kar != '\t')));
+ g_string_append_len (html, &data[i], charnum);
+ i += (charnum - 1);
+ }
+ }
+ }
+
+ g_string_append (html, "</tt></body></html>");
+ hyperlinkify_plain_text (html);
+
+ return g_string_free (html, FALSE);
+}
+
+
+
+
+static gint
+cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
+{
+ return match2->offset - match1->offset;
+}
+
+
+
+/*
+ * check if the match is inside an existing match... */
+static void
+chk_partial_match (const url_match_t *match, int* offset)
+{
+ if (*offset >= match->offset && *offset < match->offset + match->len)
+ *offset = -1;
+}
+
+static GSList*
+get_url_matches (GString *txt)
+{
+ regmatch_t rm;
+ int rv, i, offset = 0;
+ GSList *match_list = NULL;
+
+ static UrlMatchPattern patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
+ const size_t pattern_num = sizeof(patterns)/sizeof(UrlMatchPattern);
+
+ /* initalize the regexps */
+ for (i = 0; i != pattern_num; ++i) {
+ patterns[i].preg = g_new0 (regex_t,1);
+ g_assert(regcomp (patterns[i].preg, patterns[i].regex,
+ REG_ICASE|REG_EXTENDED|REG_NEWLINE) == 0);
+ }
+ /* find all the matches */
+ for (i = 0; i != pattern_num; ++i) {
+ offset = 0;
+ while (1) {
+ int test_offset;
+ if ((rv = regexec (patterns[i].preg, txt->str + offset, 1, &rm, 0)) != 0) {
+ g_assert (rv == REG_NOMATCH); /* this should not happen */
+ break; /* try next regexp */
+ }
+ if (rm.rm_so == -1)
+ break;
+
+ /* FIXME: optimize this */
+ /* to avoid partial matches on something that was already found... */
+ /* check_partial_match will put -1 in the data ptr if that is the case */
+ test_offset = offset + rm.rm_so;
+ g_slist_foreach (match_list, (GFunc)chk_partial_match, &test_offset);
+
+ /* make a list of our matches (<offset, len, prefix> tupels)*/
+ if (test_offset != -1) {
+ url_match_t *match = g_new (url_match_t,1);
+ match->offset = offset + rm.rm_so;
+ match->len = rm.rm_eo - rm.rm_so;
+ match->prefix = patterns[i].prefix;
+ match_list = g_slist_prepend (match_list, match);
+ }
+ offset += rm.rm_eo;
+ }
+ }
+
+ for (i = 0; i != pattern_num; ++i) {
+ regfree (patterns[i].preg);
+ g_free (patterns[i].preg);
+ } /* don't free patterns itself -- it's static */
+
+ /* now sort the list, so the matches are in reverse order of occurence.
+ * that way, we can do the replacements starting from the end, so we don't need
+ * to recalculate the offsets
+ */
+ match_list = g_slist_sort (match_list,
+ (GCompareFunc)cmp_offsets_reverse);
+ return match_list;
+}
+
+static gboolean
+fill_gtkhtml_with_txt (GtkHTML* gtkhtml, gchar* txt)
+{
+ gchar *html;
+
+ g_return_val_if_fail (gtkhtml, FALSE);
+ g_return_val_if_fail (txt, FALSE);
+
+ html = convert_to_html (txt);
+ gtk_html_load_from_string (gtkhtml, html, strlen(html));
+ g_free (html);
+
+ return TRUE;
+}
+
+
+
+static TnyMsgMimePartIface *
+find_body_part (TnyMsgIface *msg, const gchar *mime_type)
+{
+ TnyMsgMimePartIface *part = NULL;
+ GList *parts;
+
+ g_return_val_if_fail (msg, NULL);
+ g_return_val_if_fail (mime_type, NULL);
+
+ parts = (GList*) tny_msg_iface_get_parts (msg);
+ while (parts && !part) {
+ part = TNY_MSG_MIME_PART_IFACE(parts->data);
+ if (!tny_msg_mime_part_iface_content_type_is (part, mime_type))
+ part = NULL;
+ parts = parts->next;
+ }
+
+ return part;
+}
+
+static gboolean
+set_html_message (ModestTnyMsgView *self, TnyMsgMimePartIface *tny_body)
+{
+ TnyStreamIface *gtkhtml_stream;
+ ModestTnyMsgViewPrivate *priv;
+
+ g_return_val_if_fail (self, FALSE);
+ g_return_val_if_fail (tny_body, FALSE);
+
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