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Replaced observable in Lang::CloudManager with rpl.

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This commit is contained in:
23rd
2021-05-25 17:12:10 +03:00
parent aad38c2809
commit daa14466e5
6 changed files with 33 additions and 24 deletions
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14
Telegram/SourceFiles/boxes/language_box.cpp
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@@ -1166,15 +1166,19 @@ base::binary_guard LanguageBox::Show() {
if (manager.languageList().empty()) {
auto guard = std::make_shared<base::binary_guard>(
result.make_guard());
auto alive = std::make_shared<std::unique_ptr<base::Subscription>>(
std::make_unique<base::Subscription>());
**alive = manager.languageListChanged().add_subscription([=] {
auto lifetime = std::make_shared<rpl::lifetime>();
manager.languageListChanged(
) | rpl::take(
1
) | rpl::start_with_next([=]() mutable {
const auto show = guard->alive();
*alive = nullptr;
if (lifetime) {
base::take(lifetime)->destroy();
}
if (show) {
Ui::show(Box<LanguageBox>());
}
});
}, *lifetime);
} else {
Ui::show(Box<LanguageBox>());
}