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Telegram/lib_ui/ui/widgets/fields/custom_field_object.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 <QtGui/QTextObjectInterface>
+
+#include "ui/effects/animations.h"
+#include "ui/text/text.h"
+#include "ui/text/text_custom_emoji.h"
+
+namespace Ui {
+
+class InputField;
+class RpWidget;
+struct InputFieldTextRange;
+
+class CustomFieldObject : public QObject, public QTextObjectInterface {
+public:
+	CustomFieldObject(
+		not_null<InputField*> field,
+		Text::MarkedContext context,
+		Fn<bool()> pausedEmoji,
+		Fn<bool()> pausedSpoiler);
+	~CustomFieldObject();
+
+	void *qt_metacast(const char *iid) override;
+
+	QSizeF intrinsicSize(
+		QTextDocument *doc,
+		int posInDocument,
+		const QTextFormat &format) override;
+	void drawObject(
+		QPainter *painter,
+		const QRectF &rect,
+		QTextDocument *doc,
+		int posInDocument,
+		const QTextFormat &format) override;
+
+	void setCollapsedText(int quoteId, TextWithTags text);
+	[[nodiscard]] const TextWithTags &collapsedText(int quoteId) const;
+
+	void setNow(crl::time now);
+
+	void clearEmoji();
+	void clearQuotes();
+
+	[[nodiscard]] std::unique_ptr<RpWidget> createSpoilerOverlay();
+	void refreshSpoilerShown(InputFieldTextRange range);
+
+private:
+	struct Quote {
+		TextWithTags text;
+		Text::String string;
+	};
+
+	using Factory = Fn<std::unique_ptr<Text::CustomEmoji>(QStringView)>;
+	[[nodiscard]] Factory makeFactory();
+	[[nodiscard]] Text::MarkedContext makeFieldContext();
+
+	const not_null<InputField*> _field;
+	const Text::MarkedContext _context;
+	const Fn<bool()> _pausedEmoji;
+	const Fn<bool()> _pausedSpoiler;
+	const Factory _factory;
+
+	base::flat_map<uint64, std::unique_ptr<Text::CustomEmoji>> _emoji;
+	base::flat_map<int, Quote> _quotes;
+	crl::time _now = 0;
+	int _skip = 0;
+
+	Animations::Simple _spoilerOpacity;
+	bool _spoilerHidden = false;
+
+};
+
+} // namespace Ui