/* insert (c)/licensing information) */
#include "modest-tny-msg-view.h"
-/* include other impl specific header files */
+#include "modest-tny-stream-gtkhtml.h"
+#include <tny-text-buffer-stream.h>
+#include <string.h>
+#include <regex.h>
+#include <ctype.h>
+#include <glib/gi18n.h>
/* 'private'/'protected' functions */
-static void modest_tny_msg_view_class_init (ModestTnyMsgViewClass *klass);
-static void modest_tny_msg_view_init (ModestTnyMsgView *obj);
-static void modest_tny_msg_view_finalize (GObject *obj);
+static void modest_tny_msg_view_class_init (ModestTnyMsgViewClass *klass);
+static void modest_tny_msg_view_init (ModestTnyMsgView *obj);
+static void modest_tny_msg_view_finalize (GObject *obj);
+
+
+static GSList* get_url_matches (GString *txt);
+
+
+/*
+ * we need these regexps to find URLs in plain text e-mails
+ */
+typedef struct _UrlMatchPattern UrlMatchPattern;
+struct _UrlMatchPattern {
+ gchar *regex;
+ regex_t *preg;
+ gchar *prefix;
+};
+#define MAIL_VIEWER_URL_MATCH_PATTERNS {\
+ { "(file|http|ftp|https)://[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]+[-A-Za-z0-9_$%&=?/~#]",\
+ NULL, NULL },\
+ { "www\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
+ NULL, "http://" },\
+ { "ftp\\.[-a-z0-9.]+[-a-z0-9](:[0-9]*)?(/[-A-Za-z0-9_$.+!*(),;:@%&=?/~#]*[^]}\\),?!;:\"]?)?",\
+ NULL, "ftp://" },\
+ { "(voipto|callto|chatto|jabberto|xmpp):[-_a-z@0-9.\\+]+", \
+ NULL, NULL}, \
+ { "mailto:[-_a-z0-9.\\+]+@[-_a-z0-9.]+", \
+ NULL, NULL},\
+ { "[-_a-z0-9.\\+]+@[-_a-z0-9.]+",\
+ NULL, "mailto:"}\
+ }
+
/* list my signals */
enum {
typedef struct _ModestTnyMsgViewPrivate ModestTnyMsgViewPrivate;
struct _ModestTnyMsgViewPrivate {
- GtkWidget *text_view;
+ GtkWidget *gtkhtml;
};
#define MODEST_TNY_MSG_VIEW_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE((o), \
MODEST_TYPE_TNY_MSG_VIEW, \
1, /* n_preallocs */
(GInstanceInitFunc) modest_tny_msg_view_init,
};
- //my_type = g_type_register_static (GTK_TYPE_FRAME,
- my_type = g_type_register_static (GTK_TYPE_TEXT_VIEW,
+ my_type = g_type_register_static (GTK_TYPE_SCROLLED_WINDOW,
"ModestTnyMsgView",
&my_info, 0);
}
gobject_class->finalize = modest_tny_msg_view_finalize;
g_type_class_add_private (gobject_class, sizeof(ModestTnyMsgViewPrivate));
-
- /* signal definitions go here, e.g.: */
-/* signals[MY_SIGNAL_1] = */
-/* g_signal_new ("my_signal_1",....); */
-/* signals[MY_SIGNAL_2] = */
-/* g_signal_new ("my_signal_2",....); */
-/* etc. */
}
static void
modest_tny_msg_view_init (ModestTnyMsgView *obj)
{
ModestTnyMsgViewPrivate *priv;
+
+ gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(obj),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC);
+
priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(obj);
+ priv->gtkhtml = gtk_html_new();
+ gtk_html_set_editable (GTK_HTML(priv->gtkhtml), FALSE);
+ gtk_html_allow_selection (GTK_HTML(priv->gtkhtml), TRUE);
+ gtk_html_set_caret_mode (GTK_HTML(priv->gtkhtml), TRUE);
+ gtk_html_set_blocking (GTK_HTML(priv->gtkhtml), FALSE);
+ gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
- priv->text_view = NULL;
+ gtk_widget_show (priv->gtkhtml);
+ gtk_container_add (GTK_CONTAINER(obj), priv->gtkhtml);
}
+
static void
modest_tny_msg_view_finalize (GObject *obj)
-{
- /* no need to unref the text_view */
+{
+ ModestTnyMsgViewPrivate *priv;
+ priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(obj);
+
+ if (priv->gtkhtml)
+ g_object_unref (G_OBJECT(priv->gtkhtml));
}
GtkWidget*
{
GObject *obj;
ModestTnyMsgView* self;
- ModestTnyMsgViewPrivate *priv;
obj = G_OBJECT(g_object_new(MODEST_TYPE_TNY_MSG_VIEW, NULL));
self = MODEST_TNY_MSG_VIEW(obj);
- priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
-
- priv->text_view = gtk_text_view_new ();
- gtk_text_view_set_editable (GTK_TEXT_VIEW(priv->text_view), FALSE);
- gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW(priv->text_view), FALSE);
-
- gtk_container_add (GTK_CONTAINER(self), priv->text_view);
if (msg)
modest_tny_msg_view_set_message (self, msg);
-void
-modest_tny_msg_view_set_message (ModestTnyMsgView *self, TnyMsgIface *msg)
+
+typedef struct {
+ guint offset;
+ guint len;
+ const gchar* prefix;
+} url_match_t;
+
+
+static void
+hyperlinkify_plain_text (GString *txt)
{
- ModestTnyMsgViewPrivate *priv;
- GtkTextBuffer *buf;
+ 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;
- TnyStreamIface *stream;
+
+ 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;
+ }
- g_return_if_fail (self);
+ 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);
+
priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
- buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW(priv->text_view));
- /* clear the message view */
- gtk_text_buffer_set_text (buf, "", 0);
+ gtkhtml_stream =
+ TNY_STREAM_IFACE(modest_tny_stream_gtkhtml_new(GTK_HTML(priv->gtkhtml)));
+
+ tny_stream_iface_reset (gtkhtml_stream);
+ tny_msg_mime_part_iface_decode_to_stream (tny_body, gtkhtml_stream);
+ tny_stream_iface_reset (gtkhtml_stream);
+
+ g_object_unref (G_OBJECT(gtkhtml_stream));
+
+ return TRUE;
+}
+
+
+/* this is a hack --> we use the tny_text_buffer_stream to
+ * get the message text, then write to gtkhtml 'by hand' */
+static gboolean
+set_text_message (ModestTnyMsgView *self, TnyMsgMimePartIface *tny_body)
+{
+ GtkTextBuffer *buf;
+ GtkTextIter begin, end;
+ TnyStreamIface* txt_stream;
+ gchar *txt;
+ ModestTnyMsgViewPrivate *priv;
+
+ g_return_val_if_fail (self, FALSE);
+ g_return_val_if_fail (tny_body, FALSE);
+
+ priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
+
+ buf = gtk_text_buffer_new (NULL);
+ txt_stream = TNY_STREAM_IFACE(tny_text_buffer_stream_new (buf));
+
+ tny_stream_iface_reset (txt_stream);
+ tny_msg_mime_part_iface_decode_to_stream (tny_body, txt_stream);
+ tny_stream_iface_reset (txt_stream);
+
+ gtk_text_buffer_get_bounds (buf, &begin, &end);
+ txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
+
+ fill_gtkhtml_with_txt (GTK_HTML(priv->gtkhtml), txt);
+
+ g_object_unref (G_OBJECT(txt_stream));
+ g_object_unref (G_OBJECT(buf));
+
+ g_free (txt);
+ return TRUE;
+}
+
+
+
+void
+modest_tny_msg_view_set_message (ModestTnyMsgView *self, TnyMsgIface *msg)
+{
+ TnyMsgMimePartIface *body;
+ ModestTnyMsgViewPrivate *priv;
+
+ g_return_if_fail (self);
+
+ priv = MODEST_TNY_MSG_VIEW_GET_PRIVATE(self);
- /* if msg is NULL, do nothing else */
if (!msg) {
+ fill_gtkhtml_with_txt (GTK_HTML(priv->gtkhtml), "");
return;
}
-
- /* otherwise... find the body part */
- stream = TNY_STREAM_IFACE(tny_text_buffer_stream_new(buf));
- parts = (GList*) tny_msg_iface_get_parts (msg);
- while (parts) {
- TnyMsgMimePartIface *part =
- TNY_MSG_MIME_PART_IFACE(parts->data);
-
- if (tny_msg_mime_part_iface_content_type_is (part, "text/plain")) {
- tny_stream_iface_reset (stream);
- tny_msg_mime_part_iface_write_to_stream (part, stream);
- tny_stream_iface_reset (stream);
- break;
- }
- parts = parts->next;
+ body = find_body_part (msg, "text/html");
+ if (body) {
+ set_html_message (self, body);
+ return;
+ }
+
+ body = find_body_part (msg, "text/plain");
+ if (body) {
+ set_text_message (self, body);
+ return;
}
+
+ /* hmmmmm */
+ fill_gtkhtml_with_txt (GTK_HTML(priv->gtkhtml),
+ _("Unsupported message type"));
}
+
+
+