/* -*- 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 .
 */

#include <memory>
#include <sal/config.h>

#include <utility>

#include <editsrc.hxx>

#include <scitems.hxx>
#include <editeng/eeitem.hxx>
#include <editeng/unofored.hxx>
#include <vcl/svapp.hxx>
#include <svx/svdpage.hxx>
#include <svx/svditer.hxx>
#include <svx/svdocapt.hxx>
#include <editeng/outlobj.hxx>
#include <editeng/editobj.hxx>
#include <editeng/outliner.hxx>
#include <textuno.hxx>
#include <editutil.hxx>
#include <docsh.hxx>
#include <docfunc.hxx>
#include <hints.hxx>
#include <patattr.hxx>
#include <drwlayer.hxx>
#include <userdat.hxx>
#include <postit.hxx>
#include <AccessibleText.hxx>

ScHeaderFooterEditSource::ScHeaderFooterEditSource(ScHeaderFooterTextData& rData) :
    mrTextData(rData) {}

ScHeaderFooterEditSource::~ScHeaderFooterEditSource() {}

ScEditEngineDefaulter* ScHeaderFooterEditSource::GetEditEngine()
{
    return mrTextData.GetEditEngine();
}

std::unique_ptr<SvxEditSource> ScHeaderFooterEditSource::Clone() const
{
    return std::unique_ptr<SvxEditSource>(new ScHeaderFooterEditSource(mrTextData));
}

SvxTextForwarder* ScHeaderFooterEditSource::GetTextForwarder()
{
    return mrTextData.GetTextForwarder();
}

void ScHeaderFooterEditSource::UpdateData()
{
    mrTextData.UpdateData();
}

ScCellEditSource::ScCellEditSource(ScDocShell* pDocSh, const ScAddress& rP) :
    pCellTextData(new ScCellTextData(pDocSh, rP)) {}

ScCellEditSource::~ScCellEditSource()
{
}

std::unique_ptr<SvxEditSource> ScCellEditSource::Clone() const
{
    return std::unique_ptr<SvxEditSource>(new ScCellEditSource(pCellTextData->GetDocShell(), pCellTextData->GetCellPos()));
}

SvxTextForwarder* ScCellEditSource::GetTextForwarder()
{
    return pCellTextData->GetTextForwarder();
}

void ScCellEditSource::UpdateData()
{
    pCellTextData->UpdateData();
}

void ScCellEditSource::SetDoUpdateData(bool bValue)
{
    pCellTextData->SetDoUpdate(bValue);
}

bool ScCellEditSource::IsDirty() const
{
    return pCellTextData->IsDirty();
}

ScEditEngineDefaulter* ScCellEditSource::GetEditEngine()
{
    return pCellTextData->GetEditEngine();
}

ScAnnotationEditSource::ScAnnotationEditSource(ScDocShell* pDocSh, const ScAddress& rP) :
    pDocShell( pDocSh ),
    aCellPos( rP ),
    bDataValid( false )
{
    if (pDocShell)
        pDocShell->GetDocument().AddUnoObject(*this);
}

ScAnnotationEditSource::~ScAnnotationEditSource()
{
    SolarMutexGuard aGuard;     //  needed for EditEngine dtor

    if (pDocShell)
        pDocShell->GetDocument().RemoveUnoObject(*this);

    pForwarder.reset();
    pEditEngine.reset();
}

std::unique_ptr<SvxEditSource> ScAnnotationEditSource::Clone() const
{
    return std::unique_ptr<SvxEditSource>(new ScAnnotationEditSource( pDocShell, aCellPos ));
}

SdrObject* ScAnnotationEditSource::GetCaptionObj()
{
    ScPostIt* pNote = pDocShell->GetDocument().GetNote(aCellPos);
    return pNote ? pNote->GetOrCreateCaption( aCellPos ) : nullptr;
}

SvxTextForwarder* ScAnnotationEditSource::GetTextForwarder()
{
    if (!pEditEngine)
    {
        // notes don't have fields
        if ( pDocShell )
        {
            pEditEngine.reset( new ScNoteEditEngine( pDocShell->GetDocument().GetNoteEngine() ) );
        }
        else
        {
            SfxItemPool* pEnginePool = EditEngine::CreatePool();
            pEnginePool->FreezeIdRanges();
            pEditEngine.reset( new ScEditEngineDefaulter( pEnginePool, true ) );
        }
        pForwarder.reset( new SvxEditEngineForwarder(*pEditEngine) );
    }

    if (bDataValid)
        return pForwarder.get();

    if ( pDocShell )
        if ( ScPostIt* pNote = pDocShell->GetDocument().GetNote(aCellPos) )
            if ( const EditTextObject* pEditObj = pNote->GetEditTextObject() )
                pEditEngine->SetText( *pEditObj );      // incl. breaks (line, etc.)

    bDataValid = true;
    return pForwarder.get();
}

void ScAnnotationEditSource::UpdateData()
{
    if ( pDocShell && pEditEngine )
    {
        ScDocShellModificator aModificator( *pDocShell );

        if( SdrObject* pObj = GetCaptionObj() )
        {
            std::unique_ptr<EditTextObject> pEditObj = pEditEngine->CreateTextObject();
            std::unique_ptr<OutlinerParaObject> pOPO( new OutlinerParaObject( *pEditObj ) );
            pEditObj.reset();
            pOPO->SetOutlinerMode( OutlinerMode::TextObject );
            pObj->NbcSetOutlinerParaObject( std::move(pOPO) );
            pObj->ActionChanged();
        }

        //! Undo !!!

        aModificator.SetDocumentModified();

        // SetDocumentModified will reset bDataValid
    }
}

void ScAnnotationEditSource::Notify( SfxBroadcaster&, const SfxHint& rHint )
{
    if ( dynamic_cast<const ScUpdateRefHint*>(&rHint) )
    {
        //! reference update
    }
    else
    {
        const SfxHintId nId = rHint.GetId();
        if ( nId == SfxHintId::Dying )
        {
            pDocShell = nullptr;

            pForwarder.reset();
            pEditEngine.reset();     // EditEngine uses document's pool
        }
        else if ( nId == SfxHintId::DataChanged )
            bDataValid = false;                     // text must be retrieved again
    }
}

ScSimpleEditSource::ScSimpleEditSource( SvxTextForwarder* pForw ) :
    pForwarder( pForw )
{
    //  The same forwarder (and EditEngine) is shared by all children of the same Text object.
    //  Text range and cursor keep a reference to their parent text, so the text object is
    //  always alive and the forwarder is valid as long as there are children.
}

ScSimpleEditSource::~ScSimpleEditSource()
{
}

std::unique_ptr<SvxEditSource> ScSimpleEditSource::Clone() const
{
    return std::unique_ptr<SvxEditSource>(new ScSimpleEditSource( pForwarder ));
}

SvxTextForwarder* ScSimpleEditSource::GetTextForwarder()
{
    return pForwarder;
}

void ScSimpleEditSource::UpdateData()
{
    //  nothing
}

ScAccessibilityEditSource::ScAccessibilityEditSource( ::std::unique_ptr < ScAccessibleTextData > && pAccessibleCellTextData )
    : mpAccessibleTextData(std::move(pAccessibleCellTextData))
{
}

ScAccessibilityEditSource::~ScAccessibilityEditSource()
{
}

std::unique_ptr<SvxEditSource> ScAccessibilityEditSource::Clone() const
{
    return std::unique_ptr<SvxEditSource>(new ScAccessibilityEditSource(::std::unique_ptr < ScAccessibleTextData > (mpAccessibleTextData->Clone())));
}

SvxTextForwarder* ScAccessibilityEditSource::GetTextForwarder()
{
    return mpAccessibleTextData->GetTextForwarder();
}

SvxViewForwarder* ScAccessibilityEditSource::GetViewForwarder()
{
    return mpAccessibleTextData->GetViewForwarder();
}

SvxEditViewForwarder* ScAccessibilityEditSource::GetEditViewForwarder( bool bCreate )
{
    return mpAccessibleTextData->GetEditViewForwarder(bCreate);
}

void ScAccessibilityEditSource::UpdateData()
{
    mpAccessibleTextData->UpdateData();
}

SfxBroadcaster& ScAccessibilityEditSource::GetBroadcaster() const
{
    return mpAccessibleTextData->GetBroadcaster();
}

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