Improved focus widgets within chat when foreground box is presented.

Telegram/SourceFiles/history/history_widget.cpp

@@ -2045,6 +2045,9 @@ void HistoryWidget::activate() {
 }
 
 void HistoryWidget::setInnerFocus() {
+	if (!Ui::InFocusChain(this)) {
+		return;
+	}
 	if (_list) {
 		if (isSearching() && !_nonEmptySelection) {
 			_composeSearch->setInnerFocus();

Telegram/SourceFiles/history/view/history_view_chat_section.cpp

@@ -2390,6 +2390,9 @@ void ChatWidget::checkActivation() {
 }
 
 void ChatWidget::doSetInnerFocus() {
+	if (!Ui::InFocusChain(this)) {
+		return;
+	}
 	if (_composeSearch
 		&& _inner->getSelectedText().rich.text.isEmpty()
 		&& _inner->getSelectedItems().empty()) {