+ });
+ /* In case users are impatient and want to skip ahead:
+ * Capture <enter> key events and check if it's a unique hit.
+ * If it is, go ahead and assume it was selected. If it wasn't don't do
+ * anything so that autocompletion kicks in. For <tab> don't prevent
+ * propagation. It would be nice to catch it, but javascript is too stupid
+ * to fire a tab event later on, so we'd have to reimplement the "find
+ * next active element in tabindex order and focus it".
+ */
+ /* note:
+ * event.which does not contain tab events in keypressed in firefox but will report 0
+ * chrome does not fire keypressed at all on tab or escape
+ */
+ this.$dummy.keydown(function(event){
+ if (event.which == KEY.ENTER || event.which == KEY.TAB) {
+ // if string is empty assume they want to delete
+ if (self.$dummy.val() === '') {
+ self.set_item({});
+ return true;
+ } else if (self.state == self.STATES.PICKED) {
+ return true;
+ }
+ if (event.which == KEY.TAB) {
+ event.preventDefault();
+ self.handle_changed_text();
+ }
+ if (event.which == KEY.ENTER) {
+ self.handle_changed_text({
+ match_one: self.o.action.on_enter_match_one,
+ match_many: self.o.action.on_enter_match_many
+ });
+ return false;
+ }
+ } else if (event.which == KEY.DOWN && !self.autocomplete_open) {
+ var old_options = self.$dummy.autocomplete('option');
+ self.$dummy.autocomplete('option', 'minLength', 0);
+ self.$dummy.autocomplete('search', self.$dummy.val());
+ self.$dummy.autocomplete('option', 'minLength', old_options.minLength);
+ } else if ((event.which != KEY.SHIFT) && (event.which != KEY.CTRL) && (event.which != KEY.ALT)) {
+ self.state = self.STATES.UNDEFINED;