/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#pragma once

#include <sal/types.h>
#include <rtl/ustring.hxx>
#include "swtypes.hxx"

class SwPaM;
struct SwPosition;
class SwNode;
class SwNodeRange;
class Graphic;
class SfxItemSet;
class SfxPoolItem;
class SdrObject;
class SwFrameFormat;
class SwDrawFrameFormat;
class SwFlyFrameFormat;
class SwRootFrame;
class SwTextAttr;

namespace utl { class TransliterationWrapper; }
namespace svt { class EmbeddedObjectRef; }

enum class SwMoveFlags
{
    DEFAULT       = 0x00,
    ALLFLYS       = 0x01,
    CREATEUNDOOBJ = 0x02,
    REDLINES      = 0x04,
    NO_DELFRMS    = 0x08
};
namespace o3tl
{
    template<> struct typed_flags<SwMoveFlags> : is_typed_flags<SwMoveFlags, 0x0f> {};
}

// constants for inserting text
enum class SwInsertFlags
{
    DEFAULT         = 0x00, // no extras
    EMPTYEXPAND     = 0x01, // expand empty hints at insert position
    NOHINTEXPAND    = 0x02, // do not expand any hints at insert pos
    FORCEHINTEXPAND = 0x04 // expand all hints at insert position
};
namespace o3tl
{
    template<> struct typed_flags<SwInsertFlags> : is_typed_flags<SwInsertFlags, 0x07> {};
}

enum class SwCopyFlags
{
    Default         = 0,
    CopyAll         = (1<<0), ///< copy break attributes even when source is single node
    CheckPosInFly   = (1<<1), ///< check if target position is in fly anchored at source range
    IsMoveToFly     = (1<<2), ///< MakeFlyAndMove
    // TODO: mbCopyIsMove? mbIsRedlineMove?
};
namespace o3tl
{
    template<> struct typed_flags<SwCopyFlags> : is_typed_flags<SwCopyFlags, 0x07> {};
}

enum class SwDeleteFlags
{
    Default = 0,
    ArtificialSelection = (1<<0), ///< keyboard delete, artificial selection, avoid deleting flys
    DontCompressRedlines = (1<<1) ///< don't call compress redlines while we are loading document
};
namespace o3tl
{
    template<> struct typed_flags<SwDeleteFlags> : is_typed_flags<SwDeleteFlags, 0x03> {};
}

/** Text operation/manipulation interface
*/
class IDocumentContentOperations
{
public:
public:
    /** Copy a selected content range to a position

        The position can be in the same or in an another document. It can also
        be within the range!

        \warning The range has to include at least two nodes or has to be a
        SwDoc::IsColumnSelection, because the rPam is treated [mark, point[.

        Normally this function should work only with content nodes. But there
        is a special case used by SwDoc::Paste, which starts the SwPaM at the
        content start node. This position doesn't contain any content:

        @code
        SwNodeIndex aSourceIdx( rSource.GetNodes().GetEndOfExtras(), 1 );
        @endcode

        This is important, because it prevents merging of the first node of
        the range into the node pointed to by \p rPos.
        As a result this keeps all properties of the first real content node,
        which is the 2nd, including the Flys and the page description. In this
        case the first (fake) node is silently dropped and all other nodes are
        just copied.

        @param rPam
        The source node range to copy

        @param rPos
        The target copy destination

        @param flags
        SwCopyFlags::CheckPos:
        If this function should check if rPos is in a fly frame anchored in
        rPam. If false, then no such check will be performed, and it is assumed
        that the caller took care of verifying this constraint already.
     */
    virtual bool CopyRange(SwPaM& rPam, SwPosition& rPos, SwCopyFlags flags, sal_uInt32 nMovedID = 0) const = 0;

    /** Delete section containing the node.
    */
    virtual void DeleteSection(SwNode* pNode) = 0;

    /** Delete a range SwFlyFrameFormat.
    */
    virtual void DeleteRange(SwPaM&) = 0;

    /** Delete full paragraphs.
    */
    virtual bool DelFullPara(SwPaM&) = 0;

    /** complete delete of a given PaM
    */
    virtual bool DeleteAndJoin(SwPaM&, SwDeleteFlags flags = SwDeleteFlags::Default) = 0;

    virtual bool MoveRange(SwPaM&, SwPosition&, SwMoveFlags) = 0;

    virtual bool MoveNodeRange(SwNodeRange&, SwNode&, SwMoveFlags) = 0;

    /** Move a range.
    */
    virtual void MoveAndJoin(SwPaM&, SwPosition&) = 0;

    /** Overwrite string in an existing text node.
    */
    virtual bool Overwrite(const SwPaM &rRg, const OUString& rStr) = 0;

    /** Insert string into existing text node at position rRg.Point().
     */
    virtual bool InsertString(const SwPaM &rRg, const OUString&,
              const SwInsertFlags nInsertMode = SwInsertFlags::EMPTYEXPAND ) = 0;

    /// States that the last inserted string came from IME.
    virtual void SetIME(bool bIME) = 0;

    /// Did the last inserted string come from IME?
    virtual bool GetIME() const = 0;

    /** change text to Upper/Lower/Hiragana/Katakana/...
     */
    virtual void TransliterateText(const SwPaM& rPaM, utl::TransliterationWrapper&) = 0;

    /** Insert graphic or formula. The XXXX are copied.
     */
    virtual SwFlyFrameFormat* InsertGraphic(
        const SwPaM &rRg, const OUString& rGrfName,
        const OUString& rFltName, const Graphic* pGraphic,
        const SfxItemSet* pFlyAttrSet, const SfxItemSet* pGrfAttrSet,
        SwFrameFormat*) = 0;

    /** Transpose graphic (with undo)
     */
    virtual void ReRead(SwPaM&, const OUString& rGrfName, const OUString& rFltName, const Graphic* pGraphic) = 0;

    /** Insert a DrawObject. The object must be already registered
        in DrawModel.
    */
    virtual SwDrawFrameFormat* InsertDrawObj(
        const SwPaM &rRg, SdrObject& rDrawObj, const SfxItemSet& rFlyAttrSet) = 0;

    /** Insert OLE-objects.
    */
    virtual SwFlyFrameFormat* InsertEmbObject(
        const SwPaM &rRg, const svt::EmbeddedObjectRef& xObj,
        SfxItemSet* pFlyAttrSet) = 0;

    virtual SwFlyFrameFormat* InsertOLE(
        const SwPaM &rRg, const OUString& rObjName, sal_Int64 nAspect,
        const SfxItemSet* pFlyAttrSet, const SfxItemSet* pGrfAttrSet) = 0;

    /** Split a node at rPos (implemented only for TextNode).
    */
    virtual bool SplitNode(const SwPosition &rPos, bool bChkTableStart) = 0;

    virtual bool AppendTextNode(SwPosition& rPos) = 0;

    /** Replace selected range in a TextNode with string.
        Intended for search & replace.
        bRegExpRplc - replace tabs (\\t) and insert the found string
        ( not \& ). E.g.: Find: "zzz", Replace: "xx\t\\t..&..\&"
        --> "xx\t<Tab>..zzz..&"
    */
    virtual bool ReplaceRange(SwPaM& rPam, const OUString& rNewStr,
                              const bool bRegExReplace) = 0;

    /** Insert an attribute. If rRg spans several nodes the
        attribute is split, provided it makes sense.
        Nodes, where this attribute does not make sense are ignored.
        In nodes completely enclosed in the selection the attribute
        becomes hard-formatted, in all other (text-) nodes the attribute
        is inserted into the attribute array.
        For a character attribute, in cases where no selection exists
        an "empty" hint is inserted. If there is a selection the attribute
        is hard-formatted and added to the node at rRg.Start().
        If the attribute could not be inserted, the method returns
        false.
    */
    virtual bool InsertPoolItem(const SwPaM &rRg, const SfxPoolItem&,
                                const SetAttrMode nFlags = SetAttrMode::DEFAULT,
                                SwRootFrame const* pLayout = nullptr,
                                SwTextAttr **ppNewTextAttr = nullptr) = 0;

    virtual void InsertItemSet (const SwPaM &rRg, const SfxItemSet&,
        const SetAttrMode nFlags = SetAttrMode::DEFAULT,
        SwRootFrame const* pLayout = nullptr) = 0;

    /** Removes any leading white space from the paragraph
    */
    virtual void RemoveLeadingWhiteSpace(const SwPosition & rPos ) = 0;
    virtual void RemoveLeadingWhiteSpace(SwPaM& rPaM) = 0;

protected:
    virtual ~IDocumentContentOperations() {};
};

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