Moved out menu item with multiline text to separated file.

CMakeLists.txt

@@ -214,6 +214,8 @@ PRIVATE
     ui/widgets/menu/menu_common.h
     ui/widgets/menu/menu_item_base.cpp
     ui/widgets/menu/menu_item_base.h
+    ui/widgets/menu/menu_multiline_action.cpp
+    ui/widgets/menu/menu_multiline_action.h
     ui/widgets/menu/menu_separator.cpp
     ui/widgets/menu/menu_separator.h
     ui/widgets/menu/menu_toggle.cpp

ui/widgets/menu/menu_multiline_action.cpp

@@ -0,0 +1,88 @@
+// 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/widgets/menu/menu_multiline_action.h"
+
+#include "ui/widgets/labels.h"
+
+namespace Ui::Menu {
+
+MultilineAction::MultilineAction(
+	not_null<Ui::RpWidget*> parent,
+	const style::Menu &st,
+	const style::FlatLabel &stLabel,
+	QPoint labelPosition,
+	TextWithEntities &&about,
+	const style::icon *icon,
+	const style::icon *iconOver)
+: ItemBase(parent, st)
+, _st(st)
+, _icon(icon)
+, _iconOver(iconOver ? iconOver : icon)
+, _labelPosition(labelPosition)
+, _text(base::make_unique_q<Ui::FlatLabel>(
+	this,
+	rpl::single(std::move(about)),
+	stLabel))
+, _dummyAction(Ui::CreateChild<QAction>(parent.get())) {
+	ItemBase::enableMouseSelecting();
+	_text->setAttribute(Qt::WA_TransparentForMouseEvents);
+	updateMinWidth();
+	parent->widthValue() | rpl::start_with_next([=](int width) {
+		const auto top = _labelPosition.y();
+		const auto skip = _labelPosition.x();
+		_text->resizeToWidth(width - 2 * skip);
+		_text->moveToLeft(skip, top);
+		resize(width, contentHeight());
+	}, lifetime());
+}
+
+not_null<QAction*> MultilineAction::action() const {
+	return _dummyAction;
+}
+
+bool MultilineAction::isEnabled() const {
+	return true;
+}
+
+int MultilineAction::contentHeight() const {
+	const auto skip = _labelPosition.y();
+	return skip + _text->height() + skip;
+}
+
+void MultilineAction::paintEvent(QPaintEvent *e) {
+	auto p = QPainter(this);
+	const auto selected = isSelected();
+	p.fillRect(rect(), selected ? _st.itemBgOver : _st.itemBg);
+	RippleButton::paintRipple(p, 0, 0);
+	if (const auto icon = (selected ? _iconOver : _icon)) {
+		icon->paint(p, _st.itemIconPosition, width());
+	}
+}
+
+void MultilineAction::updateMinWidth() {
+	const auto skip = _labelPosition.x();
+	auto min = _text->naturalWidth() / 2;
+	auto max = _text->naturalWidth() - skip;
+	_text->resizeToWidth(max);
+	const auto height = _text->height();
+	_text->resizeToWidth(min);
+	const auto heightMax = _text->height();
+	if (heightMax > height) {
+		while (min + 1 < max) {
+			const auto middle = (max + min) / 2;
+			_text->resizeToWidth(middle);
+			if (_text->height() > height) {
+				min = middle;
+			} else {
+				max = middle;
+			}
+		}
+	}
+	ItemBase::setMinWidth(skip * 2 + max);
+}
+
+} // namespace Ui::Menu

ui/widgets/menu/menu_multiline_action.h

@@ -0,0 +1,51 @@
+// 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 "ui/widgets/menu/menu_item_base.h"
+
+namespace style {
+struct FlatLabel;
+struct Menu;
+} // namespace style
+
+namespace Ui {
+class FlatLabel;
+class RpWidget;
+} // namespace Ui
+
+namespace Ui::Menu {
+
+class MultilineAction final : public ItemBase {
+public:
+	MultilineAction(
+		not_null<Ui::RpWidget*> parent,
+		const style::Menu &st,
+		const style::FlatLabel &stLabel,
+		QPoint labelPosition,
+		TextWithEntities &&about,
+		const style::icon *icon = nullptr,
+		const style::icon *iconOver = nullptr);
+
+	not_null<QAction*> action() const override;
+	bool isEnabled() const override;
+
+private:
+	int contentHeight() const override;
+	void paintEvent(QPaintEvent *e) override;
+	void updateMinWidth();
+
+	const style::Menu &_st;
+	const style::icon *_icon;
+	const style::icon *_iconOver;
+	const QPoint _labelPosition;
+	const base::unique_qptr<Ui::FlatLabel> _text;
+	const not_null<QAction*> _dummyAction;
+
+};
+
+} // namespace Ui::Menu