init

Telegram/lib_ui/ui/toast/toast.cpp

@@ -0,0 +1,100 @@
+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#include "ui/toast/toast.h"
+
+#include "ui/toast/toast_manager.h"
+#include "ui/toast/toast_widget.h"
+#include "styles/style_widgets.h"
+
+namespace Ui {
+namespace Toast {
+namespace {
+
+QPointer<QWidget> DefaultParent;
+
+} // namespace
+
+Instance::Instance(
+	not_null<QWidget*> widgetParent,
+	Config &&config,
+	const Private &)
+: _st(config.st)
+, _hideAt(config.infinite
+	? 0
+	: (crl::now() + (config.duration ? config.duration : kDefaultDuration)))
+, _sliding(config.attach != RectPart::None)
+, _widget(
+	std::make_unique<internal::Widget>(
+		widgetParent,
+		std::move(config))) {
+	_shownAnimation.start(
+		[=] { shownAnimationCallback(); },
+		0.,
+		1.,
+		_sliding ? _st->durationSlide : _st->durationFadeIn);
+}
+
+void SetDefaultParent(not_null<QWidget*> parent) {
+	DefaultParent = parent;
+}
+
+base::weak_ptr<Instance> Show(
+		not_null<QWidget*> parent,
+		Config &&config) {
+	const auto manager = internal::Manager::instance(parent);
+	return manager->addToast(std::make_unique<Instance>(
+		parent,
+		std::move(config),
+		Instance::Private()));
+}
+
+base::weak_ptr<Instance> Show(Config &&config) {
+	if (const auto parent = DefaultParent.data()) {
+		return Show(parent, std::move(config));
+	}
+	return nullptr;
+}
+
+base::weak_ptr<Instance> Show(
+		not_null<QWidget*> parent,
+		const QString &text) {
+	return Show(parent, { .text = { text }, .st = &st::defaultToast });
+}
+
+base::weak_ptr<Instance> Show(const QString &text) {
+	return Show({ .text = { text }, .st = &st::defaultToast });
+}
+
+void Instance::shownAnimationCallback() {
+	_widget->setShownLevel(_shownAnimation.value(_hiding ? 0. : 1.));
+	if (!_shownAnimation.animating()) {
+		if (_hiding) {
+			hide();
+		}
+	}
+}
+
+void Instance::hideAnimated() {
+	_hiding = true;
+	_shownAnimation.start(
+		[=] { shownAnimationCallback(); },
+		1.,
+		0.,
+		_sliding ? _st->durationSlide : _st->durationFadeOut);
+}
+
+void Instance::hide() {
+	_widget->hide();
+	_widget->deleteLater();
+}
+
+not_null<RpWidget*> Instance::widget() const {
+	return _widget.get();
+}
+
+} // namespace Toast
+} // namespace Ui