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Telegram/SourceFiles/ui/boxes/edit_invite_link_session.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "ui/boxes/edit_invite_link_session.h"
+
+#include "core/ui_integration.h" // TextContext
+#include "data/components/credits.h"
+#include "data/data_peer.h"
+#include "data/data_session.h"
+#include "data/stickers/data_custom_emoji.h"
+#include "lang/lang_keys.h"
+#include "main/main_app_config.h"
+#include "main/main_session.h"
+#include "ui/boxes/edit_invite_link.h" // InviteLinkSubscriptionToggle
+#include "ui/effects/credits_graphics.h"
+#include "ui/layers/generic_box.h"
+#include "ui/rect.h"
+#include "ui/text/format_values.h"
+#include "ui/text/text_utilities.h"
+#include "ui/vertical_list.h"
+#include "ui/widgets/buttons.h"
+#include "ui/widgets/fields/number_input.h"
+#include "ui/widgets/labels.h"
+#include "ui/wrap/slide_wrap.h"
+#include "ui/wrap/vertical_layout.h"
+#include "styles/style_channel_earn.h"
+#include "styles/style_chat.h"
+#include "styles/style_settings.h"
+#include "styles/style_layers.h"
+#include "styles/style_info.h"
+
+namespace Ui {
+
+InviteLinkSubscriptionToggle FillCreateInviteLinkSubscriptionToggle(
+		not_null<Ui::GenericBox*> box,
+		not_null<PeerData*> peer) {
+	struct State final {
+		rpl::variable<float64> usdRate = 0;
+	};
+	const auto state = box->lifetime().make_state<State>();
+	const auto currency = u"USD"_q;
+
+	const auto container = box->verticalLayout();
+	const auto toggle = container->add(
+		object_ptr<SettingsButton>(
+			container,
+			tr::lng_group_invite_subscription(),
+			st::settingsButtonNoIconLocked),
+		style::margins{ 0, 0, 0, st::defaultVerticalListSkip });
+
+	const auto maxCredits = peer->session().appConfig().get<int>(
+		u"stars_subscription_amount_max"_q,
+		2500);
+
+	const auto &st = st::inviteLinkCreditsField;
+	const auto skip = st.textMargins.top() / 2;
+	const auto wrap = container->add(
+		object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
+			container,
+			object_ptr<Ui::VerticalLayout>(container)));
+	box->setShowFinishedCallback([=] {
+		wrap->toggleOn(toggle->toggledValue());
+		wrap->finishAnimating();
+	});
+	const auto inputContainer = wrap->entity()->add(
+		CreateSkipWidget(container, st.heightMin - skip));
+	const auto input = CreateChild<NumberInput>(
+		inputContainer,
+		st,
+		tr::lng_group_invite_subscription_ph(),
+		QString(),
+		std::pow(QString::number(maxCredits).size(), 10));
+	wrap->toggledValue() | rpl::on_next([=](bool shown) {
+		if (shown) {
+			input->setFocus();
+		}
+	}, input->lifetime());
+	const auto icon = CreateSingleStarWidget(
+		inputContainer,
+		st.style.font->height);
+	const auto priceOverlay = Ui::CreateChild<Ui::RpWidget>(inputContainer);
+	priceOverlay->setAttribute(Qt::WA_TransparentForMouseEvents);
+	inputContainer->sizeValue(
+	) | rpl::on_next([=](const QSize &size) {
+		input->resize(
+			size.width() - rect::m::sum::h(st::boxRowPadding),
+			st.heightMin);
+		input->moveToLeft(st::boxRowPadding.left(), -skip);
+		icon->moveToLeft(
+			st::boxRowPadding.left(),
+			input->pos().y() + st.textMargins.top());
+		priceOverlay->resize(size);
+	}, input->lifetime());
+	ToggleChildrenVisibility(inputContainer, true);
+	QObject::connect(input, &Ui::MaskedInputField::changed, [=] {
+		const auto amount = input->getLastText().toDouble();
+		if (amount > maxCredits) {
+			input->setText(QString::number(maxCredits));
+		}
+		priceOverlay->update();
+	});
+	priceOverlay->paintRequest(
+	) | rpl::on_next([=, right = st::boxRowPadding.right()] {
+		if (state->usdRate.current() <= 0) {
+			return;
+		}
+		const auto amount = input->getLastText().toDouble();
+		if (amount <= 0) {
+			return;
+		}
+		const auto text = tr::lng_group_invite_subscription_price(
+			tr::now,
+			lt_cost,
+			Ui::FillAmountAndCurrency(
+				amount * state->usdRate.current(),
+				currency));
+		auto p = QPainter(priceOverlay);
+		p.setFont(st.placeholderFont);
+		p.setPen(st.placeholderFg);
+		p.setBrush(Qt::NoBrush);
+		const auto m = QMargins(0, skip, right, 0);
+		p.drawText(priceOverlay->rect() - m, text, style::al_right);
+	}, priceOverlay->lifetime());
+
+	state->usdRate = peer->session().credits().rateValue(peer);
+
+	auto about = object_ptr<Ui::FlatLabel>(
+		container,
+		tr::lng_group_invite_subscription_about(
+			lt_link,
+			tr::lng_group_invite_subscription_about_link(
+				lt_emoji,
+				rpl::single(Ui::Text::IconEmoji(&st::textMoreIconEmoji)),
+				tr::rich
+			) | rpl::map([](TextWithEntities text) {
+				return tr::link(
+					std::move(text),
+					tr::lng_group_invite_subscription_about_url(tr::now));
+			}),
+			tr::rich),
+		st::boxDividerLabel);
+	Ui::AddSkip(wrap->entity());
+	Ui::AddSkip(wrap->entity());
+	container->add(object_ptr<Ui::DividerLabel>(
+		container,
+		std::move(about),
+		st::defaultBoxDividerLabelPadding));
+	return { toggle, input };
+}
+
+} // namespace Ui