+ /* Convert the string from UTF-8 to Latin-1 or Unicode */
+ if(win->input_request_type == INPUT_REQUEST_LINE)
+ {
+ GError *error = NULL;
+ gchar *latin1;
+ gsize bytes_written;
+ latin1 = g_convert_with_fallback(inserted_text, -1, "ISO-8859-1", "UTF-8", "?", NULL, &bytes_written, &error);
+
+ if(latin1 == NULL)
+ {
+ g_warning("Error during utf8->latin1 conversion: %s", error->message);
+ event_throw(evtype_LineInput, win, 0, 0);
+ return;
+ }
+
+ /* Place input in the echo stream */
+ if(win->echo_stream != NULL)
+ glk_put_string_stream(win->echo_stream, latin1);
+
+ /* Copy the string (but not the NULL at the end) */
+ int copycount = MIN(win->line_input_buffer_max_len, bytes_written - 1);
+ memcpy(win->line_input_buffer, latin1, copycount);
+ g_free(latin1);
+ event_throw(evtype_LineInput, win, copycount, 0);
+ }
+ else if(win->input_request_type == INPUT_REQUEST_LINE_UNICODE)
+ {
+ gunichar *unicode;
+ glong items_written;
+ unicode = g_utf8_to_ucs4_fast(inserted_text, -1, &items_written);
+
+ if(unicode == NULL)
+ {
+ g_warning("Error during utf8->unicode conversion");
+ event_throw(evtype_LineInput, win, 0, 0);
+ return;
+ }
+
+ /* Place input in the echo stream */
+ /* TODO: fixme
+ if(win->echo_stream != NULL)
+ glk_put_string_stream_uni(window->echo_stream, unicode);*/
+
+ /* Copy the string (but not the NULL at the end) */
+ int copycount = MIN(win->line_input_buffer_max_len, items_written);
+ memcpy(win->line_input_buffer_unicode, unicode, copycount * sizeof(gunichar));
+ g_free(unicode);
+ event_throw(evtype_LineInput, win, copycount, 0);
+ }
+ else
+ g_warning("%s: Wrong input request type.", __func__);
+
+ win->input_request_type = INPUT_REQUEST_NONE;
+}
+
+
+/* Internal function: Callback for signal key-press-event on a text grid window. Only unblocked during line input, so that we can catch the enter key before it inserts an enter into the window. */
+gboolean
+on_text_grid_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win)
+{
+ g_return_val_if_fail(win->type == wintype_TextGrid, FALSE);
+ g_return_val_if_fail(win->input_request_type == INPUT_REQUEST_LINE || win->input_request_type == INPUT_REQUEST_LINE_UNICODE, FALSE);
+
+ if(event->keyval == GDK_Linefeed || event->keyval == GDK_Return || event->keyval == GDK_KP_Enter)
+ {
+ GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+ GtkTextIter start_iter, end_iter;
+ g_signal_handler_block(GTK_TEXT_VIEW(win->widget), win->insert_text_handler);
+
+ /* Determine the bounds of the line input */
+ GtkTextMark *cursor = gtk_text_buffer_get_mark(window_buffer, "cursor_position");
+ gtk_text_buffer_get_iter_at_mark(window_buffer, &start_iter, cursor);
+ gint cursorpos = gtk_text_iter_get_line_offset(&start_iter);
+ gint input_length = MIN(win->width - 1 - cursorpos, win->line_input_buffer_max_len);
+ end_iter = start_iter;
+ gtk_text_iter_set_line_offset(&end_iter, cursorpos + input_length);
+
+ gchar *inserted_text = g_strchomp( gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE) );
+
+ /* Make the buffer uneditable again and remove the special tags */
+ gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE);
+ gtk_text_buffer_get_start_iter(window_buffer, &start_iter);
+ gtk_text_buffer_get_end_iter(window_buffer, &end_iter);
+ gtk_text_buffer_remove_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter);
+ gtk_text_buffer_remove_tag_by_name(window_buffer, "input_field", &start_iter, &end_iter);
+
+ end_line_input_request(win, inserted_text);
+ g_free(inserted_text);
+
+ /* Block the enter key */
+ return TRUE;
+ }
+
+ return FALSE;
+}