tagseditoraddon.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#pragma once
 
#include <QObject>
#include <QPointer>
#include <QStringList>
#include "tagsconfig.h"
 
class ITagsManager;
class QAbstractItemModel;
class QAction;
class QCompleter;
class QLineEdit;
class QPoint;
 
namespace LC::Util
{
    class CategorySelector;
    class LineEditButtonManager;
    struct TagsChange;

    class UTIL_TAGS_API TagsEditorAddon : public QObject
    {
        Q_OBJECT
 
        QLineEdit& Edit_;
        QCompleter& Completer_;
        QString Separator_;
        QString CompletionPrefix_;
        QStringList ShownTags_;
        QPointer<CategorySelector> Selector_;
        QPointer<QAction> SelectorAction_;
    public:
        enum class Flag : std::uint8_t
        {
            None = 0,
            NoSelectorButton = 0b1
        };
        Q_DECLARE_FLAGS (Flags, Flag)
 
        
        TagsEditorAddon (QLineEdit& edit, QAbstractItemModel& model, Flags flags = Flag::None);

        TagsEditorAddon (QLineEdit& edit, ITagsManager& tm, Flags flags = Flag::None);

        QString GetSeparator () const;

        void SetSeparator (const QString&);

        void AddSelectorButton (LineEditButtonManager *manager = nullptr);

        void BindSelector (CategorySelector& selector);

        void SetTags (const QStringList& tags);

        void UpdateTags (const QStringList& tags);

        QStringList GetTags () const;
    protected:
        bool eventFilter (QObject*, QEvent*) override;
    private:
        struct TokenRange
        {
            qsizetype Begin_;
            qsizetype End_;
        };
        TokenRange TokenUnderCursor () const;
        QString PrefixUnderCursor () const;
 
        void Complete ();
        void InsertTag (const QString& completion);
        void ApplyChoice (const QStringList& chosen);
        void ShowContextMenu (const QPoint& pos);
 
        bool IsEdited () const;
        void ReportEdit ();
    signals:
        void tagPicked ();

        void tagsCommitted (const TagsChange& change);
    };
}
 
Q_DECLARE_OPERATORS_FOR_FLAGS (LC::Util::TagsEditorAddon::Flags)