Introduce a toast style structure.

ui/basic.style

@@ -268,17 +268,6 @@ inlineRowFileDescriptionTop: 23px;
 inlineResultsMinWidth: 48px;
 inlineDurationMargin: 3px;
 
-toastTextStyle: defaultTextStyle;
-toastTextPalette: TextPalette(defaultTextPalette) {
-	linkFg: mediaviewTextLinkFg;
-	monoFg: mediaviewCaptionFg;
-}
-toastMaxWidth: 480px;
-toastMinMargin: 13px;
-toastPadding: margins(19px, 13px, 19px, 12px);
-toastFadeInDuration: 200;
-toastFadeOutDuration: 1000;
-
 historyReplyCancelIcon: icon {{ "box_button_close", historyReplyCancelFg }};
 historyReplyCancelIconOver: icon {{ "box_button_close", historyReplyCancelFgOver }};
 boxTitleCloseIcon: icon {{ "box_button_close", boxTitleCloseFg }};

ui/toast/toast.cpp

@@ -8,6 +8,7 @@
 
 #include "ui/toast/toast_manager.h"
 #include "ui/toast/toast_widget.h"
+#include "styles/style_widgets.h"
 
 namespace Ui {
 namespace Toast {
@@ -21,13 +22,14 @@ Instance::Instance(
 	const Config &config,
 	not_null<QWidget*> widgetParent,
 	const Private &)
-: _hideAtMs(crl::now() + config.durationMs) {
+: _st(config.st)
+, _hideAtMs(crl::now() + config.durationMs) {
 	_widget = std::make_unique<internal::Widget>(widgetParent, config);
 	_a_opacity.start(
 		[=] { opacityAnimationCallback(); },
 		0.,
 		1.,
-		st::toastFadeInDuration);
+		_st->durationFadeIn);
 }
 
 void SetDefaultParent(not_null<QWidget*> parent) {
@@ -49,15 +51,11 @@ void Show(const Config &config) {
 }
 
 void Show(not_null<QWidget*> parent, const QString &text) {
-	auto config = Config();
+	Show(parent, Config{ .text = { text }, .st = &st::defaultToast });
-	config.text = { text };
-	Show(parent, config);
 }
 
 void Show(const QString &text) {
-	auto config = Config();
+	Show(Config{ .text = { text }, .st = &st::defaultToast });
-	config.text = { text };
-	Show(config);
 }
 
 void Instance::opacityAnimationCallback() {
@@ -72,7 +70,11 @@ void Instance::opacityAnimationCallback() {
 
 void Instance::hideAnimated() {
 	_hiding = true;
-	_a_opacity.start([this] { opacityAnimationCallback(); }, 1., 0., st::toastFadeOutDuration);
+	_a_opacity.start(
+		[=] { opacityAnimationCallback(); },
+		1.,
+		0.,
+		_st->durationFadeOut);
 }
 
 void Instance::hide() {

ui/toast/toast.h

@@ -10,6 +10,10 @@
 #include "ui/text/text_entity.h"
 #include "ui/click_handler.h"
 
+namespace style {
+struct Toast;
+} // namespace style
+
 namespace Ui {
 namespace Toast {
 
@@ -23,10 +27,8 @@ using ClickHandlerFilter = Fn<bool(const ClickHandlerPtr&, Qt::MouseButton)>;
 inline constexpr auto kDefaultDuration = crl::time(1500);
 struct Config {
 	TextWithEntities text;
-	QMargins padding;
+	not_null<const style::Toast*> st;
 	crl::time durationMs = kDefaultDuration;
-	int minWidth = 0;
-	int maxWidth = 0;
 	int maxLines = 16;
 	bool multiline = false;
 	bool dark = false;
@@ -56,6 +58,8 @@ public:
 private:
 	void opacityAnimationCallback();
 
+	const not_null<const style::Toast*> _st;
+
 	bool _hiding = false;
 	Ui::Animations::Simple _a_opacity;
 

ui/toast/toast_widget.cpp

@@ -8,6 +8,7 @@
 
 #include "ui/image/image_prepare.h"
 #include "styles/palette.h"
+#include "styles/style_widgets.h"
 
 #include <QtGui/QtEvents>
 
@@ -17,15 +18,14 @@ namespace internal {
 
 Widget::Widget(QWidget *parent, const Config &config)
 : TWidget(parent)
+, _st(config.st)
 , _roundRect(ImageRoundRadius::Large, st::toastBg)
 , _multiline(config.multiline)
 , _dark(config.dark)
-, _maxWidth((config.maxWidth > 0) ? config.maxWidth : st::toastMaxWidth)
+, _maxTextWidth(widthWithoutPadding(_st->maxWidth))
-, _padding((config.padding.left() > 0) ? config.padding : st::toastPadding)
-, _maxTextWidth(widthWithoutPadding(_maxWidth))
 , _maxTextHeight(
-	st::toastTextStyle.font->height * (_multiline ? config.maxLines : 1))
+	config.st->style.font->height * (_multiline ? config.maxLines : 1))
-, _text(_multiline ? widthWithoutPadding(config.minWidth) : QFIXED_MAX)
+, _text(_multiline ? widthWithoutPadding(config.st->minWidth) : QFIXED_MAX)
 , _clickHandlerFilter(config.filter) {
 	const auto toastOptions = TextParseOptions{
 		TextParseMultiline,
@@ -34,7 +34,7 @@ Widget::Widget(QWidget *parent, const Config &config)
 		Qt::LayoutDirectionAuto
 	};
 	_text.setMarkedText(
-		st::toastTextStyle,
+		_st->style,
 		_multiline ? config.text : TextUtilities::SingleLine(config.text),
 		toastOptions);
 
@@ -49,15 +49,25 @@ Widget::Widget(QWidget *parent, const Config &config)
 }
 
 void Widget::onParentResized() {
-	auto newWidth = _maxWidth;
+	auto newWidth = _st->maxWidth;
-	accumulate_min(newWidth, _padding.left() + _text.maxWidth() + _padding.right());
+	accumulate_min(
-	accumulate_min(newWidth, parentWidget()->width() - 2 * st::toastMinMargin);
+		newWidth,
+		_st->padding.left() + _text.maxWidth() + _st->padding.right());
+	accumulate_min(
+		newWidth,
+		parentWidget()->width() - _st->margin.left() - _st->margin.right());
 	_textWidth = widthWithoutPadding(newWidth);
 	const auto textHeight = _multiline
 		? qMin(_text.countHeight(_textWidth), _maxTextHeight)
 		: _text.minHeight();
-	const auto newHeight = _padding.top() + textHeight + _padding.bottom();
+	const auto newHeight = _st->padding.top()
-	setGeometry((parentWidget()->width() - newWidth) / 2, (parentWidget()->height() - newHeight) / 2, newWidth, newHeight);
+		+ textHeight
+		+ _st->padding.bottom();
+	setGeometry(
+		(parentWidget()->width() - newWidth) / 2,
+		(parentWidget()->height() - newHeight) / 2,
+		newWidth,
+		newHeight);
 }
 
 void Widget::setShownLevel(float64 shownLevel) {
@@ -74,11 +84,16 @@ void Widget::paintEvent(QPaintEvent *e) {
 		_roundRect.paint(p, rect());
 	}
 
-	p.setTextPalette(st::toastTextPalette);
+	p.setTextPalette(_st->palette);
 
-	const auto lines = _maxTextHeight / st::toastTextStyle.font->height;
+	const auto lines = _maxTextHeight / _st->style.font->height;
 	p.setPen(st::toastFg);
-	_text.drawElided(p, _padding.left(), _padding.top(), _textWidth + 1, lines);
+	_text.drawElided(
+		p,
+		_st->padding.left(),
+		_st->padding.top(),
+		_textWidth + 1,
+		lines);
 }
 
 void Widget::leaveEventHook(QEvent *e) {
@@ -96,8 +111,9 @@ void Widget::mouseMoveEvent(QMouseEvent *e) {
 	if (!_text.hasLinks()) {
 		return;
 	}
-	const auto point = e->pos() - QPoint(_padding.left(), _padding.top());
+	const auto point = e->pos()
-	const auto lines = _maxTextHeight / st::toastTextStyle.font->height;
+		- QPoint(_st->padding.left(), _st->padding.top());
+	const auto lines = _maxTextHeight / _st->style.font->height;
 	const auto state = _text.getStateElided(point, _textWidth + 1);
 	const auto was = ClickHandler::getActive();
 	if (was != state.link) {
@@ -129,6 +145,10 @@ void Widget::mouseReleaseEvent(QMouseEvent *e) {
 	}
 }
 
+int Widget::widthWithoutPadding(int w) const {
+	return w - _st->padding.left() - _st->padding.right();
+}
+
 } // namespace internal
 } // namespace Toast
 } // namespace Ui

ui/toast/toast_widget.h

@@ -33,17 +33,14 @@ protected:
 	void mouseReleaseEvent(QMouseEvent *e) override;
 
 private:
-	int widthWithoutPadding(int w) {
+	[[nodiscard]] int widthWithoutPadding(int w) const;
-		return w - _padding.left() - _padding.right();
-	}
 
+	const not_null<const style::Toast*> _st;
 	RoundRect _roundRect;
 
 	float64 _shownLevel = 0;
 	bool _multiline = false;
 	bool _dark = false;
-	int _maxWidth = 0;
-	QMargins _padding;
 
 	int _maxTextWidth = 0;
 	int _maxTextHeight = 0;

ui/widgets/widgets.style

@@ -568,6 +568,18 @@ SideBarButton {
 	ripple: RippleAnimation;
 }
 
+Toast {
+	style: TextStyle;
+	palette: TextPalette;
+	padding: margins;
+	margin: margins;
+	minWidth: pixels;
+	maxWidth: pixels;
+	durationFadeIn: int;
+	durationFadeOut: int;
+	durationSlide: int;
+}
+
 defaultLabelSimple: LabelSimple {
 	font: normalFont;
 	maxWidth: 0px;
@@ -1266,6 +1278,20 @@ defaultSideBarButton: SideBarButton {
 	}
 }
 
+defaultToast: Toast {
+	style: defaultTextStyle;
+	palette: TextPalette(defaultTextPalette) {
+		linkFg: mediaviewTextLinkFg;
+		monoFg: mediaviewCaptionFg;
+	}
+	padding: margins(19px, 13px, 19px, 12px);
+	margin: margins(13px, 13px, 13px, 13px);
+	maxWidth: 480px;
+	durationFadeIn: 200;
+	durationFadeOut: 1000;
+	durationSlide: 400;
+}
+
 // Windows specific title
 
 windowTitleButton: IconButton {