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Telegram/lib_ui/ui/toast/toast.h

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+// 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
+//
+#pragma once
+
+#include "base/object_ptr.h"
+#include "base/weak_ptr.h"
+#include "ui/effects/animations.h"
+#include "ui/text/text_entity.h"
+#include "ui/text/text.h"
+#include "ui/click_handler.h"
+#include "ui/rect_part.h"
+#include "ui/rp_widget.h"
+
+#include <any>
+
+namespace style {
+struct Toast;
+} // namespace style
+
+namespace st {
+extern const style::Toast &defaultMultilineToast;
+} // namespace st
+
+namespace Ui::Toast {
+
+namespace internal {
+class Manager;
+class Widget;
+} // namespace internal
+
+using ClickHandlerFilter = Fn<bool(const ClickHandlerPtr&, Qt::MouseButton)>;
+
+inline constexpr auto kDefaultDuration = crl::time(1500);
+struct Config {
+	// Default way of composing the content, a FlatLabel.
+	QString title;
+	TextWithEntities text;
+	Text::MarkedContext textContext;
+	ClickHandlerFilter filter;
+	int maxlines = 16;
+	bool singleline = false;
+
+	// Custom way of composing any content.
+	object_ptr<RpWidget> content = { nullptr };
+
+	rpl::producer<QMargins> padding;
+
+	not_null<const style::Toast*> st = &st::defaultMultilineToast;
+	RectPart attach = RectPart::None;
+	rpl::producer<int> addToAttachSide;
+
+	bool dark = false;
+	bool adaptive = false;
+	bool acceptinput = false;
+
+	crl::time duration = kDefaultDuration;
+	bool infinite = false; // Just ignore the duration.
+};
+
+void SetDefaultParent(not_null<QWidget*> parent);
+
+class Instance final : public base::has_weak_ptr {
+	struct Private {
+	};
+
+public:
+	Instance(
+		not_null<QWidget*> widgetParent,
+		Config &&config,
+		const Private &);
+	Instance(const Instance &other) = delete;
+	Instance &operator=(const Instance &other) = delete;
+
+	void hideAnimated();
+	void hide();
+
+	[[nodiscard]] not_null<RpWidget*> widget() const;
+
+private:
+	void shownAnimationCallback();
+
+	const not_null<const style::Toast*> _st;
+	const crl::time _hideAt = 0;
+
+	Ui::Animations::Simple _shownAnimation;
+	bool _hiding = false;
+	bool _sliding = false;
+
+	// ToastManager should reset _widget pointer if _widget is destroyed.
+	friend class internal::Manager;
+	friend base::weak_ptr<Instance> Show(
+		not_null<QWidget*> parent,
+		Config &&config);
+	std::unique_ptr<internal::Widget> _widget;
+
+};
+
+base::weak_ptr<Instance> Show(
+	not_null<QWidget*> parent,
+	Config &&config);
+base::weak_ptr<Instance> Show(Config &&config);
+base::weak_ptr<Instance> Show(
+	not_null<QWidget*> parent,
+	const QString &text);
+base::weak_ptr<Instance> Show(const QString &text);
+
+} // namespace Ui::Toast