Allow sliding toasts from the parent side.

ui/toast/toast.cpp

@@ -23,45 +23,50 @@ Instance::Instance(
 	not_null<QWidget*> widgetParent,
 	const Private &)
 : _st(config.st)
-, _hideAtMs(crl::now() + config.durationMs) {
-	_widget = std::make_unique<internal::Widget>(widgetParent, config);
-	_a_opacity.start(
-		[=] { opacityAnimationCallback(); },
+, _hideAt(crl::now() + config.durationMs)
+, _sliding(config.slideSide != RectPart::None)
+, _widget(std::make_unique<internal::Widget>(widgetParent, config)) {
+	_shownAnimation.start(
+		[=] { shownAnimationCallback(); },
 		0.,
 		1.,
-		_st->durationFadeIn);
+		_sliding ? _st->durationSlide : _st->durationFadeIn);
 }
 
 void SetDefaultParent(not_null<QWidget*> parent) {
 	DefaultParent = parent;
 }
 
-void Show(not_null<QWidget*> parent, const Config &config) {
+base::weak_ptr<Instance> Show(
+		not_null<QWidget*> parent,
+		const Config &config) {
 	const auto manager = internal::Manager::instance(parent);
-	manager->addToast(std::make_unique<Instance>(
+	return manager->addToast(std::make_unique<Instance>(
 		config,
 		parent,
 		Instance::Private()));
 }
 
-void Show(const Config &config) {
+base::weak_ptr<Instance> Show(const Config &config) {
 	if (const auto parent = DefaultParent.data()) {
-		Show(parent, config);
+		return Show(parent, config);
 	}
+	return nullptr;
 }
 
-void Show(not_null<QWidget*> parent, const QString &text) {
-	Show(parent, Config{ .text = { text }, .st = &st::defaultToast });
+base::weak_ptr<Instance> Show(
+		not_null<QWidget*> parent,
+		const QString &text) {
+	return Show(parent, Config{ .text = { text }, .st = &st::defaultToast });
 }
 
-void Show(const QString &text) {
-	Show(Config{ .text = { text }, .st = &st::defaultToast });
+base::weak_ptr<Instance> Show(const QString &text) {
+	return Show(Config{ .text = { text }, .st = &st::defaultToast });
 }
 
-void Instance::opacityAnimationCallback() {
-	_widget->setShownLevel(_a_opacity.value(_hiding ? 0. : 1.));
-	_widget->update();
-	if (!_a_opacity.animating()) {
+void Instance::shownAnimationCallback() {
+	_widget->setShownLevel(_shownAnimation.value(_hiding ? 0. : 1.));
+	if (!_shownAnimation.animating()) {
 		if (_hiding) {
 			hide();
 		}
@@ -70,11 +75,11 @@ void Instance::opacityAnimationCallback() {
 
 void Instance::hideAnimated() {
 	_hiding = true;
-	_a_opacity.start(
-		[=] { opacityAnimationCallback(); },
+	_shownAnimation.start(
+		[=] { shownAnimationCallback(); },
 		1.,
 		0.,
-		_st->durationFadeOut);
+		_sliding ? _st->durationSlide : _st->durationFadeOut);
 }
 
 void Instance::hide() {
@@ -82,5 +87,9 @@ void Instance::hide() {
 	_widget->deleteLater();
 }
 
+not_null<RpWidget*> Instance::widget() const {
+	return _widget.get();
+}
+
 } // namespace Toast
 } // namespace Ui

ui/toast/toast.h

@@ -9,6 +9,9 @@
 #include "ui/effects/animations.h"
 #include "ui/text/text_entity.h"
 #include "ui/click_handler.h"
+#include "ui/rect_part.h"
+#include "ui/rp_widget.h"
+#include "base/weak_ptr.h"
 
 namespace style {
 struct Toast;
@@ -32,15 +35,13 @@ struct Config {
 	int maxLines = 16;
 	bool multiline = false;
 	bool dark = false;
+	RectPart slideSide = RectPart::None;
 	ClickHandlerFilter filter;
 };
-void SetDefaultParent(not_null<QWidget*> parent);
-void Show(not_null<QWidget*> parent, const Config &config);
-void Show(const Config &config);
-void Show(not_null<QWidget*> parent, const QString &text);
-void Show(const QString &text);
 
-class Instance {
+void SetDefaultParent(not_null<QWidget*> parent);
+
+class Instance final : public base::has_weak_ptr {
 	struct Private {
 	};
 
@@ -55,22 +56,35 @@ public:
 	void hideAnimated();
 	void hide();
 
+	[[nodiscard]] not_null<RpWidget*> widget() const;
+
 private:
-	void opacityAnimationCallback();
+	void shownAnimationCallback();
 
 	const not_null<const style::Toast*> _st;
+	const crl::time _hideAt = 0;
 
+	Ui::Animations::Simple _shownAnimation;
 	bool _hiding = false;
-	Ui::Animations::Simple _a_opacity;
-
-	const crl::time _hideAtMs;
+	bool _sliding = false;
 
 	// ToastManager should reset _widget pointer if _widget is destroyed.
 	friend class internal::Manager;
-	friend void Show(not_null<QWidget*> parent, const Config &config);
+	friend base::weak_ptr<Instance> Show(
+		not_null<QWidget*> parent,
+		const Config &config);
 	std::unique_ptr<internal::Widget> _widget;
 
 };
 
+base::weak_ptr<Instance> Show(
+	not_null<QWidget*> parent,
+	const Config &config);
+base::weak_ptr<Instance>  Show(const Config &config);
+base::weak_ptr<Instance>  Show(
+	not_null<QWidget*> parent,
+	const QString &text);
+base::weak_ptr<Instance>  Show(const QString &text);
+
 } // namespace Toast
 } // namespace Ui

ui/toast/toast_manager.cpp

@@ -44,13 +44,16 @@ not_null<Manager*> Manager::instance(not_null<QWidget*> parent) {
 	return i->second;
 }
 
-void Manager::addToast(std::unique_ptr<Instance> &&toast) {
+base::weak_ptr<Instance> Manager::addToast(
+		std::unique_ptr<Instance> &&toast) {
 	_toasts.push_back(std::move(toast));
 	const auto t = _toasts.back().get();
 	const auto widget = t->_widget.get();
 
 	_toastByWidget.emplace(widget, t);
-	connect(widget, SIGNAL(destroyed(QObject*)), this, SLOT(onToastWidgetDestroyed(QObject*)));
+	connect(widget, &QObject::destroyed, [=] {
+		toastWidgetDestroyed(widget);
+	});
 	if (const auto parent = widget->parentWidget()) {
 		auto found = false;
 		for (auto i = _toastParents.begin(); i != _toastParents.cend();) {
@@ -72,10 +75,11 @@ void Manager::addToast(std::unique_ptr<Instance> &&toast) {
 	const auto nearestHide = _toastByHideTime.empty()
 		? 0LL
 		: _toastByHideTime.begin()->first;
-	_toastByHideTime.emplace(t->_hideAtMs, t);
+	_toastByHideTime.emplace(t->_hideAt, t);
 	if (!nearestHide || _toastByHideTime.begin()->first < nearestHide) {
 		startNextHideTimer();
 	}
+	return make_weak(t);
 }
 
 void Manager::hideByTimer() {
@@ -92,7 +96,7 @@ void Manager::hideByTimer() {
 	startNextHideTimer();
 }
 
-void Manager::onToastWidgetDestroyed(QObject *widget) {
+void Manager::toastWidgetDestroyed(QObject *widget) {
 	const auto i = _toastByWidget.find(static_cast<Widget*>(widget));
 	if (i == _toastByWidget.cend()) {
 		return;
@@ -101,6 +105,13 @@ void Manager::onToastWidgetDestroyed(QObject *widget) {
 	_toastByWidget.erase(i);
 	toast->_widget.release();
 
+	for (auto i = begin(_toastByHideTime); i != end(_toastByHideTime); ++i) {
+		if (i->second == toast) {
+			_toastByHideTime.erase(i);
+			break;
+		}
+	}
+
 	const auto j = ranges::find(
 		_toasts,
 		toast.get(),
@@ -111,7 +122,9 @@ void Manager::onToastWidgetDestroyed(QObject *widget) {
 }
 
 void Manager::startNextHideTimer() {
-	if (_toastByHideTime.empty()) return;
+	if (_toastByHideTime.empty()) {
+		return;
+	}
 
 	auto ms = crl::now();
 	if (ms >= _toastByHideTime.begin()->first) {

ui/toast/toast_manager.h

@@ -14,9 +14,7 @@ namespace Toast {
 namespace internal {
 
 class Widget;
-class Manager : public QObject {
-	Q_OBJECT
-
+class Manager final : public QObject {
 	struct CreateTag {
 	};
 
@@ -28,15 +26,13 @@ public:
 
 	static not_null<Manager*> instance(not_null<QWidget*> parent);
 
-	void addToast(std::unique_ptr<Instance> &&toast);
+	base::weak_ptr<Instance> addToast(std::unique_ptr<Instance> &&toast);
 
 protected:
 	bool eventFilter(QObject *o, QEvent *e);
 
-private slots:
-	void onToastWidgetDestroyed(QObject *widget);
-
 private:
+	void toastWidgetDestroyed(QObject *widget);
 	void startNextHideTimer();
 	void hideByTimer();
 

ui/toast/toast_widget.cpp

@@ -17,9 +17,10 @@ namespace Toast {
 namespace internal {
 
 Widget::Widget(QWidget *parent, const Config &config)
-: TWidget(parent)
+: RpWidget(parent)
 , _st(config.st)
 , _roundRect(ImageRoundRadius::Large, st::toastBg)
+, _slideSide(config.slideSide)
 , _multiline(config.multiline)
 , _dark(config.dark)
 , _maxTextWidth(widthWithoutPadding(_st->maxWidth))
@@ -49,36 +50,74 @@ Widget::Widget(QWidget *parent, const Config &config)
 }
 
 void Widget::onParentResized() {
-	auto newWidth = _st->maxWidth;
+	updateGeometry();
+}
+
+void Widget::updateGeometry() {
+	auto width = _st->maxWidth;
 	accumulate_min(
-		newWidth,
+		width,
 		_st->padding.left() + _text.maxWidth() + _st->padding.right());
 	accumulate_min(
-		newWidth,
+		width,
 		parentWidget()->width() - _st->margin.left() - _st->margin.right());
-	_textWidth = widthWithoutPadding(newWidth);
+	_textWidth = widthWithoutPadding(width);
 	const auto textHeight = _multiline
 		? qMin(_text.countHeight(_textWidth), _maxTextHeight)
 		: _text.minHeight();
-	const auto newHeight = _st->padding.top()
+	const auto height = _st->padding.top()
 		+ textHeight
 		+ _st->padding.bottom();
-	setGeometry(
-		(parentWidget()->width() - newWidth) / 2,
-		(parentWidget()->height() - newHeight) / 2,
-		newWidth,
-		newHeight);
+	const auto rect = QRect(0, 0, width, height);
+	const auto outer = parentWidget()->size();
+	const auto full = QPoint(outer.width(), outer.height());
+	const auto middle = QPoint(
+		(outer.width() - width) / 2,
+		(outer.height() - height) / 2);
+	const auto interpolated = [&](int from, int to) {
+		return anim::interpolate(from, to, _shownLevel);
+	};
+	setGeometry(rect.translated([&] {
+		switch (_slideSide) {
+		case RectPart::None:
+			return middle;
+		case RectPart::Left:
+			return QPoint(
+				interpolated(-width, _st->margin.left()),
+				middle.y());
+		case RectPart::Top:
+			return QPoint(
+				middle.x(),
+				interpolated(-height, _st->margin.top()));
+		case RectPart::Right:
+			return QPoint(
+				full.x() - interpolated(0, width + _st->margin.right()),
+				middle.y());
+		case RectPart::Bottom:
+			return QPoint(
+				middle.x(),
+				full.y() - interpolated(0, height + _st->margin.bottom()));
+		}
+		Unexpected("Slide side in Toast::Widget::updateGeometry.");
+	}()));
 }
 
 void Widget::setShownLevel(float64 shownLevel) {
 	_shownLevel = shownLevel;
+	if (_slideSide != RectPart::None) {
+		updateGeometry();
+	} else {
+		update();
+	}
 }
 
 void Widget::paintEvent(QPaintEvent *e) {
 	Painter p(this);
 	PainterHighQualityEnabler hq(p);
 
+	if (_slideSide == RectPart::None) {
 		p.setOpacity(_shownLevel);
+	}
 	_roundRect.paint(p, rect());
 	if (_dark) {
 		_roundRect.paint(p, rect());

ui/toast/toast_widget.h

@@ -15,7 +15,7 @@ namespace Ui {
 namespace Toast {
 namespace internal {
 
-class Widget : public TWidget {
+class Widget final : public RpWidget {
 public:
 	Widget(QWidget *parent, const Config &config);
 
@@ -34,9 +34,11 @@ protected:
 
 private:
 	[[nodiscard]] int widthWithoutPadding(int w) const;
+	void updateGeometry();
 
 	const not_null<const style::Toast*> _st;
 	RoundRect _roundRect;
+	RectPart _slideSide = RectPart::None;
 
 	float64 _shownLevel = 0;
 	bool _multiline = false;

ui/widgets/widgets.style

@@ -1289,7 +1289,7 @@ defaultToast: Toast {
 	maxWidth: 480px;
 	durationFadeIn: 200;
 	durationFadeOut: 1000;
-	durationSlide: 400;
+	durationSlide: 160;
 }
 
 // Windows specific title