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Telegram/SourceFiles/window/themes/window_theme_editor_block.h

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "ui/rp_widget.h"
+
+namespace Ui {
+class BoxContent;
+} // namespace Ui;
+
+class ColorEditor;
+
+namespace Window {
+namespace Theme {
+
+class EditorBlock final : public Ui::RpWidget {
+public:
+	enum class Type {
+		Existing,
+		New,
+	};
+	struct Context {
+		struct {
+			base::weak_qptr<Ui::BoxContent> box;
+			base::weak_qptr<ColorEditor> editor;
+		} colorEditor;
+		QString name;
+		QString possibleCopyOf;
+
+		rpl::event_stream<> updated;
+		rpl::event_stream<> resized;
+
+		struct AppendData {
+			QString name;
+			QString possibleCopyOf;
+			QColor value;
+			QString description;
+		};
+		rpl::event_stream<AppendData> appended;
+
+		struct ChangeData {
+			QStringList names;
+			QColor value;
+		};
+		rpl::event_stream<ChangeData> changed;
+
+		struct EditionData {
+			QString name;
+			QString copyOf;
+			QColor value;
+		};
+		rpl::event_stream<EditionData> pending;
+
+		struct ScrollData {
+			Type type = {};
+			int position = 0;
+			int height = 0;
+		};
+		rpl::event_stream<ScrollData> scroll;
+	};
+	EditorBlock(QWidget *parent, Type type, Context *context);
+
+	void filterRows(const QString &query);
+	void chooseRow();
+	bool hasSelected() const {
+		return (_selected >= 0);
+	}
+	void clearSelected() {
+		setSelected(-1);
+	}
+	bool selectSkip(int direction);
+
+	void feed(const QString &name, QColor value, const QString &copyOfExisting = QString());
+	bool feedCopy(const QString &name, const QString &copyOf);
+	const QColor *find(const QString &name);
+
+	bool feedDescription(const QString &name, const QString &description);
+
+	void sortByDistance(const QColor &to);
+
+protected:
+	void paintEvent(QPaintEvent *e) override;
+	int resizeGetHeight(int newWidth) override;
+
+	void mousePressEvent(QMouseEvent *e) override;
+	void mouseReleaseEvent(QMouseEvent *e) override;
+	void mouseMoveEvent(QMouseEvent *e) override;
+	void leaveEventHook(QEvent *e) override;
+
+private:
+	class Row;
+
+	void addRow(const QString &name, const QString &copyOf, QColor value);
+	void removeRow(const QString &name, bool removeCopyReferences = true);
+
+	void addToSearch(const Row &row);
+	void removeFromSearch(const Row &row);
+
+	template <typename Callback>
+	void enumerateRows(Callback callback);
+
+	template <typename Callback>
+	void enumerateRows(Callback callback) const;
+
+	template <typename Callback>
+	void enumerateRowsFrom(int top, Callback callback);
+
+	template <typename Callback>
+	void enumerateRowsFrom(int top, Callback callback) const;
+
+	Row &rowAtIndex(int index);
+	int findRowIndex(const QString &name) const;
+	Row *findRow(const QString &name);
+	int findRowIndex(const Row *row);
+	void updateRow(const Row &row);
+	void paintRow(Painter &p, int index, const Row &row);
+
+	void updateSelected(QPoint localPosition);
+	void setSelected(int selected);
+	void setPressed(int pressed);
+	void addRowRipple(int index);
+	void stopLastRipple(int index);
+	void scrollToSelected();
+
+	bool isEditing() const {
+		return !_context->name.isEmpty();
+	}
+	void saveEditing(QColor value);
+	void cancelEditing();
+	bool checkCopyOf(int index, const QString &possibleCopyOf);
+	void checkCopiesChanged(int startIndex, QStringList names, QColor value);
+	void activateRow(const Row &row);
+
+	bool isSearch() const {
+		return !_searchQuery.isEmpty();
+	}
+	void searchByQuery(QString query);
+	void resetSearch() {
+		searchByQuery(QString());
+	}
+
+	Type _type = Type::Existing;
+	Context *_context = nullptr;
+
+	std::vector<Row> _data;
+	QMap<QString, int> _indices;
+
+	QString _searchQuery;
+	std::vector<int> _searchResults;
+	base::flat_map<QChar, base::flat_set<int>> _searchIndex;
+
+	int _selected = -1;
+	int _pressed = -1;
+	int _editing = -1;
+
+	QPoint _lastGlobalPos;
+	bool _mouseSelection = false;
+
+	QBrush _transparent;
+
+};
+
+} // namespace Theme
+} // namespace Window