Method closeByBackButton

Telegram/SourceFiles/info/info_wrap_widget.cpp:1049–1059

}

bool WrapWidget::closeByBackButton() {
	if (!hasStackHistory() && wrap() != Wrap::Layer) {
		return false;
	}
	checkBeforeCloseByEscape(hasStackHistory()
		? Fn<void()>([=] { _controller->showBackFromStack(); })
		: Fn<void()>([=] {
			_controller->parentController()->hideSpecialLayer();
		}));
	return true;
}

void WrapWidget::updateContentGeometry() {
	if (_content) {