static void
chat_text_view_highlight (EmpathyChatView *view,
const gchar *text,
gboolean match_case)
{
GtkTextBuffer *buffer;
GtkTextIter iter;
GtkTextIter iter_start;
GtkTextIter iter_end;
GtkTextIter iter_match_start;
GtkTextIter iter_match_end;
gboolean found;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
gtk_text_buffer_remove_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
&iter_start,
&iter_end);
if (EMP_STR_EMPTY (text)) {
return;
}
while (1) {
if (match_case) {
found = gtk_text_iter_forward_search (&iter,
text,
0,
&iter_match_start,
&iter_match_end,
NULL);
} else {
found = empathy_text_iter_forward_search (&iter,
text,
&iter_match_start,
&iter_match_end,
NULL);
}
if (!found) {
break;
}
gtk_text_buffer_apply_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
&iter_match_start,
&iter_match_end);
iter = iter_match_end;
}
}
static void
chat_text_view_find_abilities (EmpathyChatView *view,
const gchar *search_criteria,
gboolean *can_do_previous,
gboolean *can_do_next)
{
EmpathyChatTextViewPriv *priv;
GtkTextBuffer *buffer;
GtkTextIter iter_at_mark;
GtkTextIter iter_match_start;
GtkTextIter iter_match_end;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
g_return_if_fail (search_criteria != NULL);
g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
priv = GET_PRIV (view);
buffer = priv->buffer;
if (can_do_previous) {
if (priv->find_mark_previous) {
gtk_text_buffer_get_iter_at_mark (buffer,
&iter_at_mark,
priv->find_mark_previous);
} else {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
}
*can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
search_criteria,
&iter_match_start,
&iter_match_end,
NULL);
}
if (can_do_next) {
if (priv->find_mark_next) {
gtk_text_buffer_get_iter_at_mark (buffer,
&iter_at_mark,
priv->find_mark_next);
} else {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
}
*can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
search_criteria,
&iter_match_start,
&iter_match_end,
NULL);
}
}
static gboolean
chat_text_view_find_next (EmpathyChatView *view,
const gchar *search_criteria,
gboolean new_search)
{
EmpathyChatTextViewPriv *priv;
GtkTextBuffer *buffer;
GtkTextIter iter_at_mark;
GtkTextIter iter_match_start;
GtkTextIter iter_match_end;
gboolean found;
gboolean from_start = FALSE;
g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
g_return_val_if_fail (search_criteria != NULL, FALSE);
priv = GET_PRIV (view);
buffer = priv->buffer;
if (EMP_STR_EMPTY (search_criteria)) {
if (priv->find_mark_next) {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
gtk_text_buffer_move_mark (buffer,
priv->find_mark_next,
&iter_at_mark);
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
priv->find_mark_next,
0.0,
TRUE,
0.0,
0.0);
gtk_text_buffer_select_range (buffer,
&iter_at_mark,
&iter_at_mark);
}
return FALSE;
}
if (new_search) {
from_start = TRUE;
}
if (priv->find_mark_next) {
gtk_text_buffer_get_iter_at_mark (buffer,
&iter_at_mark,
priv->find_mark_next);
} else {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
from_start = TRUE;
}
priv->find_last_direction = TRUE;
found = empathy_text_iter_forward_search (&iter_at_mark,
search_criteria,
&iter_match_start,
&iter_match_end,
NULL);
if (!found) {
gboolean result = FALSE;
if (from_start) {
return result;
}
/* Here we wrap around. */
if (!new_search && !priv->find_wrapped) {
priv->find_wrapped = TRUE;
result = chat_text_view_find_next (view,
search_criteria,
FALSE);
priv->find_wrapped = FALSE;
}
return result;
}
/* Set new mark and show on screen */
if (!priv->find_mark_next) {
priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
&iter_match_end,
TRUE);
} else {
gtk_text_buffer_move_mark (buffer,
priv->find_mark_next,
&iter_match_end);
}
if (!priv->find_mark_previous) {
priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
&iter_match_start,
TRUE);
} else {
gtk_text_buffer_move_mark (buffer,
priv->find_mark_previous,
&iter_match_start);
}
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
priv->find_mark_next,
0.0,
TRUE,
0.5,
0.5);
gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
return TRUE;
}
