/* -*- 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 <ChartController.hxx>

#include <ResId.hxx>
#include "UndoGuard.hxx"
#include <DrawViewWrapper.hxx>
#include <ChartWindow.hxx>
#include <TitleHelper.hxx>
#include <ObjectIdentifier.hxx>
#include <ControllerLockGuard.hxx>
#include <AccessibleTextHelper.hxx>
#include <strings.hrc>
#include <chartview/DrawModelWrapper.hxx>

#include <svx/svdoutl.hxx>
#include <svx/svxdlg.hxx>
#include <svx/svxids.hrc>
#include <editeng/editids.hrc>
#include <vcl/svapp.hxx>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/chart2/XTitle.hpp>
#include <svl/stritem.hxx>
#include <editeng/fontitem.hxx>
#include <memory>

namespace chart
{
using namespace ::com::sun::star;

void ChartController::executeDispatch_EditText( const Point* pMousePixel )
{
    StartTextEdit( pMousePixel );
}

void ChartController::StartTextEdit( const Point* pMousePixel )
{
    //the first marked object will be edited

    SolarMutexGuard aGuard;
    SdrObject* pTextObj = m_pDrawViewWrapper->getTextEditObject();
    if(!pTextObj)
        return;

    OSL_PRECOND(!m_pTextActionUndoGuard,
                "ChartController::StartTextEdit: already have a TextUndoGuard!?");
    m_pTextActionUndoGuard.reset( new UndoGuard(
        SchResId( STR_ACTION_EDIT_TEXT ), m_xUndoManager ) );
    SdrOutliner* pOutliner = m_pDrawViewWrapper->getOutliner();

    //#i77362 change notification for changes on additional shapes are missing
    uno::Reference< beans::XPropertySet > xChartViewProps( m_xChartView, uno::UNO_QUERY );
    if( xChartViewProps.is() )
        xChartViewProps->setPropertyValue( "SdrViewIsInEditMode", uno::Any(true) );

    bool bEdit = m_pDrawViewWrapper->SdrBeginTextEdit( pTextObj
                    , m_pDrawViewWrapper->GetPageView()
                    , GetChartWindow()
                    , false //bIsNewObj
                    , pOutliner
                    , nullptr //pOutlinerView
                    , true //bDontDeleteOutliner
                    , true //bOnlyOneView
                    );
    if(!bEdit)
        return;

    m_pDrawViewWrapper->SetEditMode();

    // #i12587# support for shapes in chart
    if ( pMousePixel )
    {
        OutlinerView* pOutlinerView = m_pDrawViewWrapper->GetTextEditOutlinerView();
        if ( pOutlinerView )
        {
            MouseEvent aEditEvt( *pMousePixel, 1, MouseEventModifiers::SYNTHETIC, MOUSE_LEFT, 0 );
            pOutlinerView->MouseButtonDown( aEditEvt );
            pOutlinerView->MouseButtonUp( aEditEvt );
        }
    }

    //we invalidate the outliner region because the outliner has some
    //paint problems (some characters are painted twice a little bit shifted)
    GetChartWindow()->Invalidate( m_pDrawViewWrapper->GetMarkedObjBoundRect() );
}

bool ChartController::EndTextEdit()
{
    m_pDrawViewWrapper->SdrEndTextEdit();

    //#i77362 change notification for changes on additional shapes are missing
    uno::Reference< beans::XPropertySet > xChartViewProps( m_xChartView, uno::UNO_QUERY );
    if( xChartViewProps.is() )
        xChartViewProps->setPropertyValue( "SdrViewIsInEditMode", uno::Any(false) );

    SdrObject* pTextObject = m_pDrawViewWrapper->getTextEditObject();
    if(!pTextObject)
        return false;

    SdrOutliner* pOutliner = m_pDrawViewWrapper->getOutliner();
    OutlinerParaObject* pParaObj = pTextObject->GetOutlinerParaObject();
    if( pParaObj && pOutliner )
    {
        pOutliner->SetText( *pParaObj );

        OUString aString = pOutliner->GetText(
                            pOutliner->GetParagraph( 0 ),
                            pOutliner->GetParagraphCount() );

        OUString aObjectCID = m_aSelection.getSelectedCID();
        if ( !aObjectCID.isEmpty() )
        {
            uno::Reference< beans::XPropertySet > xPropSet =
                ObjectIdentifier::getObjectPropertySet( aObjectCID, getModel() );

            // lock controllers till end of block
            ControllerLockGuardUNO aCLGuard( getModel() );

            TitleHelper::setCompleteString( aString, uno::Reference<
                css::chart2::XTitle >::query( xPropSet ), m_xCC );

            OSL_ENSURE(m_pTextActionUndoGuard, "ChartController::EndTextEdit: no TextUndoGuard!");
            if (m_pTextActionUndoGuard)
                m_pTextActionUndoGuard->commit();
        }
        m_pTextActionUndoGuard.reset();
    }
    return true;
}

void ChartController::executeDispatch_InsertSpecialCharacter()
{
    SolarMutexGuard aGuard;
    if( !m_pDrawViewWrapper)
    {
        OSL_ENSURE( m_pDrawViewWrapper, "No DrawViewWrapper for ChartController" );
        return;
    }
    if( !m_pDrawViewWrapper->IsTextEdit() )
        StartTextEdit();

    SvxAbstractDialogFactory * pFact = SvxAbstractDialogFactory::Create();

    SfxAllItemSet aSet( m_pDrawModelWrapper->GetItemPool() );
    aSet.Put( SfxBoolItem( FN_PARAM_1, false ) );

    //set fixed current font
    aSet.Put( SfxBoolItem( FN_PARAM_2, true ) ); //maybe not necessary in future

    vcl::Font aCurFont = m_pDrawViewWrapper->getOutliner()->GetRefDevice()->GetFont();
    aSet.Put( SvxFontItem( aCurFont.GetFamilyType(), aCurFont.GetFamilyName(), aCurFont.GetStyleName(), aCurFont.GetPitch(), aCurFont.GetCharSet(), SID_ATTR_CHAR_FONT ) );

    ScopedVclPtr<SfxAbstractDialog> pDlg(pFact->CreateCharMapDialog(GetChartFrame(), aSet, nullptr));
    if( pDlg->Execute() != RET_OK )
        return;

    const SfxItemSet* pSet = pDlg->GetOutputItemSet();
    const SfxPoolItem* pItem=nullptr;
    OUString aString;
    if (pSet && pSet->GetItemState(SID_CHARMAP, true, &pItem) == SfxItemState::SET)
        if (auto pStringItem = dynamic_cast<const SfxStringItem*>(pItem))
            aString = pStringItem->GetValue();

    OutlinerView* pOutlinerView = m_pDrawViewWrapper->GetTextEditOutlinerView();
    SdrOutliner*  pOutliner = m_pDrawViewWrapper->getOutliner();

    if(!pOutliner || !pOutlinerView)
        return;

    // insert string to outliner

    // prevent flicker
    pOutlinerView->HideCursor();
    pOutliner->SetUpdateMode(false);

    // delete current selection by inserting empty String, so current
    // attributes become unique (sel. has to be erased anyway)
    pOutlinerView->InsertText(OUString());

    pOutlinerView->InsertText(aString, true);

    ESelection aSel = pOutlinerView->GetSelection();
    aSel.nStartPara = aSel.nEndPara;
    aSel.nStartPos = aSel.nEndPos;
    pOutlinerView->SetSelection(aSel);

    // show changes
    pOutliner->SetUpdateMode(true);
    pOutlinerView->ShowCursor();
}

uno::Reference< css::accessibility::XAccessibleContext >
    ChartController::impl_createAccessibleTextContext()
{
    uno::Reference< css::accessibility::XAccessibleContext > xResult(
        new AccessibleTextHelper( m_pDrawViewWrapper.get() ));

    return xResult;
}

} //namespace chart

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