/* -*- 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 <i18nlangtag/languagetag.hxx>

#include <vcl/commandevent.hxx>

#include <vcl/builder.hxx>

#include <vcl/decoview.hxx>

#include <vcl/event.hxx>

#include <vcl/menu.hxx>

#include <vcl/specialchars.hxx>

#include <vcl/timer.hxx>

#include <vcl/vclevent.hxx>

#include <vcl/xtextedt.hxx>

#include <vcl/textview.hxx>

#include <vcl/ptrstyle.hxx>

#include <svl/undo.hxx>

#include <svl/lstner.hxx>

#include <vcl/uitest/uiobject.hxx>

#include <vcl/settings.hxx>

#include <vcl/toolkit/scrbar.hxx>

#include <vcl/toolkit/vclmedit.hxx>

#include <vcl/weld/weld.hxx>

#include <osl/diagnose.h>

#include <tools/json_writer.hxx>

#include <strings.hrc>

#include <svdata.hxx>

#include <comphelper/lok.hxx>

class ImpVclMEdit : public SfxListener

{

private:

    VclPtr<VclMultiLineEdit>   pVclMultiLineEdit;

    VclPtr<TextWindow>         mpTextWindow;

    VclPtr<ScrollBar>          mpHScrollBar;

    VclPtr<ScrollBar>          mpVScrollBar;

    VclPtr<ScrollBarBox>       mpScrollBox;

    tools::Long                mnTextWidth;

    mutable Selection   maSelection;

protected:

    virtual void        Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;

    void                ImpUpdateScrollBarVis( WinBits nWinStyle );

    void                ImpInitScrollBars();

    void                ImpSetScrollBarRanges();

    void                ImpSetHScrollBarThumbPos();

    DECL_LINK(    ScrollHdl, ScrollBar*, void );

public:

                ImpVclMEdit( VclMultiLineEdit* pVclMultiLineEdit, WinBits nWinStyle );

                virtual ~ImpVclMEdit() override;

    void        SetModified( bool bMod );

    void        SetReadOnly( bool bRdOnly );

    bool        IsReadOnly() const;

    void        SetMaxTextLen(sal_Int32 nLen);

    sal_Int32   GetMaxTextLen() const;

    void        SetMaxTextWidth(tools::Long nMaxWidth);

    void        InsertText( const OUString& rStr );

    OUString    GetSelected() const;

    OUString    GetSelected( LineEnd aSeparator ) const;

    void        SetSelection( const Selection& rSelection );

    const Selection& GetSelection() const;

    void        Cut();

    void        Copy();

    void        Paste();

    void        SetText( const OUString& rStr );

    OUString    GetText() const;

    OUString    GetText( LineEnd aSeparator ) const;

    OUString    GetTextLines( LineEnd aSeparator ) const;

    void        Resize();

    void        GetFocus();

    bool        HandleCommand( const CommandEvent& rCEvt );

    void        Enable( bool bEnable );

    Size        CalcMinimumSize() const;

    Size        CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) const;

    void        GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const;

    void        SetAlign( WinBits nWinStyle );

    void        InitFromStyle( WinBits nWinStyle );

    TextWindow* GetTextWindow() { return mpTextWindow; }

    ScrollBar&  GetHScrollBar() { return *mpHScrollBar; }

    ScrollBar&  GetVScrollBar() { return *mpVScrollBar; }

};

ImpVclMEdit::ImpVclMEdit( VclMultiLineEdit* pEdt, WinBits nWinStyle )

    : pVclMultiLineEdit(pEdt)

    , mpTextWindow(VclPtr<TextWindow>::Create(pEdt))

    , mpHScrollBar(VclPtr<ScrollBar>::Create(pVclMultiLineEdit, WB_HSCROLL|WB_DRAG))

    , mpVScrollBar(VclPtr<ScrollBar>::Create(pVclMultiLineEdit, WB_VSCROLL|WB_DRAG))

    , mpScrollBox(VclPtr<ScrollBarBox>::Create(pVclMultiLineEdit, WB_SIZEABLE))

    , mnTextWidth(0)

{

    mpVScrollBar->SetScrollHdl( LINK( this, ImpVclMEdit, ScrollHdl ) );

    mpHScrollBar->SetScrollHdl( LINK( this, ImpVclMEdit, ScrollHdl ) );

    mpTextWindow->Show();

    InitFromStyle( nWinStyle );

    StartListening( *mpTextWindow->GetTextEngine() );

}

void ImpVclMEdit::ImpUpdateScrollBarVis( WinBits nWinStyle )

{

    const bool bHaveVScroll = mpVScrollBar->IsVisible();

    const bool bHaveHScroll = mpHScrollBar->IsVisible();

    const bool bHaveScrollBox = mpScrollBox->IsVisible();

    bool bNeedVScroll = ( nWinStyle & WB_VSCROLL ) == WB_VSCROLL;

    const bool bNeedHScroll = ( nWinStyle & WB_HSCROLL ) == WB_HSCROLL;

    const bool bAutoVScroll = ( nWinStyle & WB_AUTOVSCROLL ) == WB_AUTOVSCROLL;

    if ( !bNeedVScroll && bAutoVScroll )

    {

        TextEngine& rEngine( *mpTextWindow->GetTextEngine() );

        tools::Long nOverallTextHeight(0);

        for ( sal_uInt32 i=0; i<rEngine.GetParagraphCount(); ++i )

            nOverallTextHeight += rEngine.GetTextHeight( i );

        if ( nOverallTextHeight > mpTextWindow->GetOutputSizePixel().Height() )

            bNeedVScroll = true;

    }

    const bool bNeedScrollBox = bNeedVScroll && bNeedHScroll;

    bool bScrollbarsChanged = false;

    if ( bHaveVScroll != bNeedVScroll )

    {

        mpVScrollBar->Show(bNeedVScroll);

        bScrollbarsChanged = true;

    }

    if ( bHaveHScroll != bNeedHScroll )

    {

        mpHScrollBar->Show(bNeedHScroll);

        bScrollbarsChanged = true;

    }

    if ( bHaveScrollBox != bNeedScrollBox )

    {

        mpScrollBox->Show(bNeedScrollBox);

    }

    if ( bScrollbarsChanged )

    {

        ImpInitScrollBars();

        Resize();

    }

}

void ImpVclMEdit::InitFromStyle( WinBits nWinStyle )

{

    ImpUpdateScrollBarVis( nWinStyle );

    SetAlign( nWinStyle );

    if ( nWinStyle & WB_NOHIDESELECTION )

        mpTextWindow->SetAutoFocusHide( false );

    else

        mpTextWindow->SetAutoFocusHide( true );

    if ( nWinStyle & WB_READONLY )

        mpTextWindow->GetTextView()->SetReadOnly( true );

    else

        mpTextWindow->GetTextView()->SetReadOnly( false );

    if ( nWinStyle & WB_IGNORETAB )

    {

        mpTextWindow->SetIgnoreTab( true );

    }

    else

    {

        mpTextWindow->SetIgnoreTab( false );

        // #103667# VclMultiLineEdit has the flag, but focusable window also needs this flag

        WinBits nStyle = mpTextWindow->GetStyle();

        nStyle |= WB_NODIALOGCONTROL;

        mpTextWindow->SetStyle( nStyle );

    }

}

ImpVclMEdit::~ImpVclMEdit()

{

    EndListening( *mpTextWindow->GetTextEngine() );

    mpTextWindow.disposeAndClear();

    mpHScrollBar.disposeAndClear();

    mpVScrollBar.disposeAndClear();

    mpScrollBox.disposeAndClear();

    pVclMultiLineEdit.disposeAndClear();

}

void ImpVclMEdit::ImpSetScrollBarRanges()

{

    const tools::Long nTextHeight = mpTextWindow->GetTextEngine()->GetTextHeight();

    mpVScrollBar->SetRange( Range( 0, nTextHeight-1 ) );

    mpHScrollBar->SetRange( Range( 0, mnTextWidth-1 ) );

}

void ImpVclMEdit::ImpInitScrollBars()

{

    static const sal_Unicode sampleChar = { 'x' };

    ImpSetScrollBarRanges();

    Size aCharBox;

    aCharBox.setWidth( mpTextWindow->GetTextWidth( OUString(sampleChar) ) );

    aCharBox.setHeight( mpTextWindow->GetTextHeight() );

    Size aOutSz = mpTextWindow->GetOutputSizePixel();

    mpHScrollBar->SetVisibleSize( aOutSz.Width() );

    mpHScrollBar->SetPageSize( aOutSz.Width() * 8 / 10 );

    mpHScrollBar->SetLineSize( aCharBox.Width()*10 );

    ImpSetHScrollBarThumbPos();

    mpVScrollBar->SetVisibleSize( aOutSz.Height() );

    mpVScrollBar->SetPageSize( aOutSz.Height() * 8 / 10 );

    mpVScrollBar->SetLineSize( aCharBox.Height() );

    mpVScrollBar->SetThumbPos( mpTextWindow->GetTextView()->GetStartDocPos().Y() );

}

void ImpVclMEdit::ImpSetHScrollBarThumbPos()

{

    tools::Long nX = mpTextWindow->GetTextView()->GetStartDocPos().X();

    if ( !mpTextWindow->GetTextEngine()->IsRightToLeft() )

        mpHScrollBar->SetThumbPos( nX );

    else

        mpHScrollBar->SetThumbPos( mnTextWidth - mpHScrollBar->GetVisibleSize() - nX );

}

IMPL_LINK( ImpVclMEdit, ScrollHdl, ScrollBar*, pCurScrollBar, void )

{

    tools::Long nDiffX = 0, nDiffY = 0;

    if ( pCurScrollBar == mpVScrollBar )

        nDiffY = mpTextWindow->GetTextView()->GetStartDocPos().Y() - pCurScrollBar->GetThumbPos();

    else if ( pCurScrollBar == mpHScrollBar )

        nDiffX = mpTextWindow->GetTextView()->GetStartDocPos().X() - pCurScrollBar->GetThumbPos();

    mpTextWindow->GetTextView()->Scroll( nDiffX, nDiffY );

    // mpTextWindow->GetTextView()->ShowCursor( false, true );

}

void ImpVclMEdit::SetAlign( WinBits nWinStyle )

{

    bool bRTL = AllSettings::GetLayoutRTL();

    mpTextWindow->GetTextEngine()->SetRightToLeft( bRTL );

    if ( nWinStyle & WB_CENTER )

        mpTextWindow->GetTextEngine()->SetTextAlign( TxtAlign::Center );

    else if ( nWinStyle & WB_RIGHT )

        mpTextWindow->GetTextEngine()->SetTextAlign( !bRTL ? TxtAlign::Right : TxtAlign::Left );

    else if ( nWinStyle & WB_LEFT )

        mpTextWindow->GetTextEngine()->SetTextAlign( !bRTL ? TxtAlign::Left : TxtAlign::Right );

}

void ImpVclMEdit::SetModified( bool bMod )

{

    mpTextWindow->GetTextEngine()->SetModified( bMod );

}

void ImpVclMEdit::SetReadOnly( bool bRdOnly )

{

    mpTextWindow->GetTextView()->SetReadOnly( bRdOnly );

    // TODO: Adjust color?

}

bool ImpVclMEdit::IsReadOnly() const

{

    return mpTextWindow->GetTextView()->IsReadOnly();

}

void ImpVclMEdit::SetMaxTextLen(sal_Int32 nLen)

{

    mpTextWindow->GetTextEngine()->SetMaxTextLen(nLen);

}

sal_Int32 ImpVclMEdit::GetMaxTextLen() const

{

    return mpTextWindow->GetTextEngine()->GetMaxTextLen();

}

void ImpVclMEdit::InsertText( const OUString& rStr )

{

    mpTextWindow->GetTextView()->InsertText( rStr );

}

OUString ImpVclMEdit::GetSelected() const

{

    return mpTextWindow->GetTextView()->GetSelected();

}

OUString ImpVclMEdit::GetSelected( LineEnd aSeparator ) const

{

    return mpTextWindow->GetTextView()->GetSelected( aSeparator );

}

void ImpVclMEdit::SetMaxTextWidth(tools::Long nMaxWidth)

{

    mpTextWindow->GetTextEngine()->SetMaxTextWidth(nMaxWidth);

}

void ImpVclMEdit::Resize()

{

    int nIteration = 1;

    do

    {

        WinBits nWinStyle( pVclMultiLineEdit->GetStyle() );

        if ( ( nWinStyle & WB_AUTOVSCROLL ) == WB_AUTOVSCROLL )

            ImpUpdateScrollBarVis( nWinStyle );

        Size aSz = pVclMultiLineEdit->GetOutputSizePixel();

        Size aEditSize = aSz;

        tools::Long nSBWidth = pVclMultiLineEdit->GetSettings().GetStyleSettings().GetScrollBarSize();

        nSBWidth = pVclMultiLineEdit->CalcZoom( nSBWidth );

        if (mpHScrollBar->IsVisible())

            aSz.AdjustHeight( -(nSBWidth+1) );

        if (mpVScrollBar->IsVisible())

            aSz.AdjustWidth( -(nSBWidth+1) );

        if (!mpHScrollBar->IsVisible())

            mpTextWindow->GetTextEngine()->SetMaxTextWidth( aSz.Width() );

        else

            mpHScrollBar->setPosSizePixel( 0, aEditSize.Height()-nSBWidth, aSz.Width(), nSBWidth );

        Point aTextWindowPos;

        if (mpVScrollBar->IsVisible())

        {

            if( AllSettings::GetLayoutRTL() )

            {

                mpVScrollBar->setPosSizePixel( 0, 0, nSBWidth, aSz.Height() );

                aTextWindowPos.AdjustX(nSBWidth );

            }

            else

                mpVScrollBar->setPosSizePixel( aEditSize.Width()-nSBWidth, 0, nSBWidth, aSz.Height() );

        }

        if (mpScrollBox->IsVisible())

            mpScrollBox->setPosSizePixel( aSz.Width(), aSz.Height(), nSBWidth, nSBWidth );

        Size aTextWindowSize( aSz );

        if ( aTextWindowSize.Width() < 0 )

            aTextWindowSize.setWidth( 0 );

        if ( aTextWindowSize.Height() < 0 )

            aTextWindowSize.setHeight( 0 );

        Size aOldTextWindowSize( mpTextWindow->GetSizePixel() );

        mpTextWindow->SetPosSizePixel( aTextWindowPos, aTextWindowSize );

        if ( aOldTextWindowSize == aTextWindowSize )

            break;

        // Changing the text window size might effectively have changed the need for

        // scrollbars, so do another iteration.

        ++nIteration;

        OSL_ENSURE( nIteration < 3, "ImpVclMEdit::Resize: isn't this expected to terminate with the second iteration?" );

    } while ( nIteration <= 3 );    // artificial break after four iterations

    ImpInitScrollBars();

}

void ImpVclMEdit::GetFocus()

{

    mpTextWindow->GrabFocus();

}

void ImpVclMEdit::Cut()

{

    if ( !mpTextWindow->GetTextView()->IsReadOnly() )

        mpTextWindow->GetTextView()->Cut();

}

void ImpVclMEdit::Copy()

{

    mpTextWindow->GetTextView()->Copy();

}

void ImpVclMEdit::Paste()

{

    if ( !mpTextWindow->GetTextView()->IsReadOnly() )

        mpTextWindow->GetTextView()->Paste();

}

void ImpVclMEdit::SetText( const OUString& rStr )

{

    bool bWasModified = mpTextWindow->GetTextEngine()->IsModified();

    mpTextWindow->GetTextEngine()->SetText( rStr );

    if ( !bWasModified )

        mpTextWindow->GetTextEngine()->SetModified( false );

    mpTextWindow->GetTextView()->SetSelection( TextSelection() );

    WinBits nWinStyle( pVclMultiLineEdit->GetStyle() );

    if ( ( nWinStyle & WB_AUTOVSCROLL ) == WB_AUTOVSCROLL )

        ImpUpdateScrollBarVis( nWinStyle );

}

OUString ImpVclMEdit::GetText() const

{

    return mpTextWindow->GetTextEngine()->GetText();

}

OUString ImpVclMEdit::GetText( LineEnd aSeparator ) const

{

    return mpTextWindow->GetTextEngine()->GetText( aSeparator );

}

OUString ImpVclMEdit::GetTextLines( LineEnd aSeparator ) const

{

    return mpTextWindow->GetTextEngine()->GetTextLines( aSeparator );

}

void ImpVclMEdit::Notify( SfxBroadcaster&, const SfxHint& rHint )

{

    switch (rHint.GetId())

    {

        case SfxHintId::TextViewScrolled:

            if (mpHScrollBar->IsVisible())

                ImpSetHScrollBarThumbPos();

            if (mpVScrollBar->IsVisible())

                mpVScrollBar->SetThumbPos( mpTextWindow->GetTextView()->GetStartDocPos().Y() );

            break;

        case SfxHintId::TextHeightChanged:

            if ( mpTextWindow->GetTextView()->GetStartDocPos().Y() )

            {

                tools::Long nOutHeight = mpTextWindow->GetOutputSizePixel().Height();

                tools::Long nTextHeight = mpTextWindow->GetTextEngine()->GetTextHeight();

                if ( nTextHeight < nOutHeight )

                    mpTextWindow->GetTextView()->Scroll( 0, mpTextWindow->GetTextView()->GetStartDocPos().Y() );

            }

            ImpSetScrollBarRanges();

            break;

        case SfxHintId::TextFormatted:

            if (mpHScrollBar->IsVisible())

            {

                const tools::Long nWidth = mpTextWindow->GetTextEngine()->CalcTextWidth();

                if ( nWidth != mnTextWidth )

                {

                    mnTextWidth = nWidth;

                    mpHScrollBar->SetRange( Range( 0, mnTextWidth-1 ) );

                    ImpSetHScrollBarThumbPos();

                }

            }

            break;

        case SfxHintId::TextModified:

            ImpUpdateScrollBarVis(pVclMultiLineEdit->GetStyle());

            pVclMultiLineEdit->Modify();

            break;

        case SfxHintId::TextViewSelectionChanged:

            pVclMultiLineEdit->SelectionChanged();

            break;

        case SfxHintId::TextViewCaretChanged:

            pVclMultiLineEdit->CaretChanged();

            break;

        default: break;

    }

}

void ImpVclMEdit::SetSelection( const Selection& rSelection )

{

    OUString aText = mpTextWindow->GetTextEngine()->GetText();

    Selection aNewSelection( rSelection );

    if ( aNewSelection.Min() < 0 )

        aNewSelection.Min() = 0;

    else if ( aNewSelection.Min() > aText.getLength() )

        aNewSelection.Min() = aText.getLength();

    if ( aNewSelection.Max() < 0 )

        aNewSelection.Max() = 0;

    else if ( aNewSelection.Max() > aText.getLength() )

        aNewSelection.Max() = aText.getLength();

    tools::Long nEnd = std::max( aNewSelection.Min(), aNewSelection.Max() );

    TextSelection aTextSel;

    sal_uInt32 nPara = 0;

    sal_Int32 nChar = 0;

    tools::Long x = 0;

    while ( x <= nEnd )

    {

        if ( x == aNewSelection.Min() )

            aTextSel.GetStart() = TextPaM( nPara, nChar );

        if ( x == aNewSelection.Max() )

            aTextSel.GetEnd() = TextPaM( nPara, nChar );

        if ( ( x < aText.getLength() ) && ( aText[ x ] == '\n' ) )

        {

            nPara++;

            nChar = 0;

        }

        else

            nChar++;

        x++;

    }

    mpTextWindow->GetTextView()->SetSelection( aTextSel );

}

const Selection& ImpVclMEdit::GetSelection() const

{

    maSelection = Selection();

    TextSelection aTextSel( mpTextWindow->GetTextView()->GetSelection() );

    aTextSel.Justify();

    // flatten selection => every line-break a character

    ExtTextEngine* pExtTextEngine = mpTextWindow->GetTextEngine();

    // paragraphs before

    for ( sal_uInt32 n = 0; n < aTextSel.GetStart().GetPara(); ++n )

    {

        maSelection.Min() += pExtTextEngine->GetTextLen( n );

        maSelection.Min()++;

    }

    // first paragraph with selection

    maSelection.Max() = maSelection.Min();

    maSelection.Min() += aTextSel.GetStart().GetIndex();

    for ( sal_uInt32 n = aTextSel.GetStart().GetPara(); n < aTextSel.GetEnd().GetPara(); ++n )

    {

        maSelection.Max() += pExtTextEngine->GetTextLen( n );

        maSelection.Max()++;

    }

    maSelection.Max() += aTextSel.GetEnd().GetIndex();

    return maSelection;

}

Size ImpVclMEdit::CalcMinimumSize() const

{

    Size aSz(   mpTextWindow->GetTextEngine()->CalcTextWidth(),

                mpTextWindow->GetTextEngine()->GetTextHeight() );

    if (mpHScrollBar->IsVisible())

        aSz.AdjustHeight(mpHScrollBar->GetSizePixel().Height() );

    if (mpVScrollBar->IsVisible())

        aSz.AdjustWidth(mpVScrollBar->GetSizePixel().Width() );

    return aSz;

}

Size ImpVclMEdit::CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) const

{

    static const sal_Unicode sampleChar = 'X';

    Size aSz;

    Size aCharSz;

    aCharSz.setWidth( mpTextWindow->GetTextWidth( OUString(sampleChar) ) );

    aCharSz.setHeight( mpTextWindow->GetTextHeight() );

    if ( nLines )

        aSz.setHeight( nLines*aCharSz.Height() );

    else

        aSz.setHeight( mpTextWindow->GetTextEngine()->GetTextHeight() );

    if ( nColumns )

        aSz.setWidth( nColumns*aCharSz.Width() );

    else

        aSz.setWidth( mpTextWindow->GetTextEngine()->CalcTextWidth() );

    if (mpHScrollBar->IsVisible())

        aSz.AdjustHeight(mpHScrollBar->GetSizePixel().Height() );

    if (mpVScrollBar->IsVisible())

        aSz.AdjustWidth(mpVScrollBar->GetSizePixel().Width() );

    return aSz;

}

void ImpVclMEdit::GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const

{

    static const sal_Unicode sampleChar = { 'x' };

    Size aOutSz = mpTextWindow->GetOutputSizePixel();

    Size aCharSz( mpTextWindow->GetTextWidth( OUString(sampleChar) ), mpTextWindow->GetTextHeight() );

    rnCols = static_cast<sal_uInt16>(aOutSz.Width()/aCharSz.Width());

    rnLines = static_cast<sal_uInt16>(aOutSz.Height()/aCharSz.Height());

}

void ImpVclMEdit::Enable( bool bEnable )

{

    mpTextWindow->Enable( bEnable );

    if (mpHScrollBar->IsVisible())

        mpHScrollBar->Enable( bEnable );

    if (mpVScrollBar->IsVisible())

        mpVScrollBar->Enable( bEnable );

}

bool ImpVclMEdit::HandleCommand( const CommandEvent& rCEvt )

{

    bool bDone = false;

    CommandEventId nCommand = rCEvt.GetCommand();

    if (nCommand == CommandEventId::Wheel ||

        nCommand == CommandEventId::StartAutoScroll ||

        nCommand == CommandEventId::AutoScroll ||

        nCommand == CommandEventId::GesturePan)

    {

        ScrollBar* pHScrollBar = mpHScrollBar->IsVisible() ? mpHScrollBar.get() : nullptr;

        ScrollBar* pVScrollBar = mpVScrollBar->IsVisible() ? mpVScrollBar.get() : nullptr;

        mpTextWindow->HandleScrollCommand(rCEvt, pHScrollBar, pVScrollBar);

        bDone = true;

    }

    return bDone;

}

TextWindow::TextWindow(Edit* pParent)

    : Window(pParent)

    , mxParent(pParent)

{

    mbInMBDown = false;

    mbFocusSelectionHide = false;

    mbIgnoreTab = false;

    mbActivePopup = false;

    mbSelectOnTab = true;

    SetPointer( PointerStyle::Text );

    mpExtTextEngine.reset(new ExtTextEngine);

    mpExtTextEngine->SetMaxTextLen(EDIT_NOLIMIT);

    if( pParent->GetStyle() & WB_BORDER )

        mpExtTextEngine->SetLeftMargin( 2 );

    mpExtTextEngine->SetLocale( GetSettings().GetLanguageTag().getLocale() );

    mpExtTextView.reset(new TextView( mpExtTextEngine.get(), this ));

    mpExtTextEngine->InsertView( mpExtTextView.get() );

    mpExtTextEngine->EnableUndo( true );

    mpExtTextView->ShowCursor();

    Color aBackgroundColor = GetSettings().GetStyleSettings().GetWorkspaceColor();

    SetBackground( aBackgroundColor );

    pParent->SetBackground( aBackgroundColor );

}

Unexecuted instantiation: TextWindow::TextWindow(Edit*)

Unexecuted instantiation: TextWindow::TextWindow(Edit*)

TextWindow::~TextWindow()

{

    disposeOnce();

}

void TextWindow::dispose()

{

    mxParent.reset();

    mpExtTextView.reset();

    mpExtTextEngine.reset();

    Window::dispose();

}

void TextWindow::MouseMove( const MouseEvent& rMEvt )

{

    mpExtTextView->MouseMove( rMEvt );

    Window::MouseMove( rMEvt );

}

void TextWindow::MouseButtonDown( const MouseEvent& rMEvt )

{

    mbInMBDown = true;  // so that GetFocus does not select everything

    mpExtTextView->MouseButtonDown( rMEvt );

    GrabFocus();

    mbInMBDown = false;

}

void TextWindow::MouseButtonUp( const MouseEvent& rMEvt )

{

    mpExtTextView->MouseButtonUp( rMEvt );

}

void TextWindow::KeyInput( const KeyEvent& rKEvent )

{

    bool bDone = false;

    sal_uInt16 nCode = rKEvent.GetKeyCode().GetCode();

    if ( nCode == css::awt::Key::SELECT_ALL ||

         ( (nCode == KEY_A) && rKEvent.GetKeyCode().IsMod1() && !rKEvent.GetKeyCode().IsMod2() )

       )

    {

        mpExtTextView->SetSelection( TextSelection( TextPaM( 0, 0 ), TextPaM( TEXT_PARA_ALL, TEXT_INDEX_ALL ) ) );

        bDone = true;

    }

    else if ( (nCode == KEY_S) && rKEvent.GetKeyCode().IsShift() && rKEvent.GetKeyCode().IsMod1() )

    {

        if ( vcl::GetGetSpecialCharsFunction() )

        {

            // to maintain the selection

            mbActivePopup = true;

            OUString aChars = vcl::GetGetSpecialCharsFunction()(GetFrameWeld(), GetFont());

            if (!aChars.isEmpty())

            {

                mpExtTextView->InsertText( aChars );

                mpExtTextView->GetTextEngine()->SetModified( true );

            }

            mbActivePopup = false;

            bDone = true;

        }

    }

    else if ( nCode == KEY_TAB )

    {

        if (!mbIgnoreTab)

        {

            if (!rKEvent.GetKeyCode().IsMod1())

                bDone = mpExtTextView->KeyInput(rKEvent);

            else

            {

                // tdf#107625 make ctrl+tab act like tab when MultiLine Edit normally accepts tab as an input char

                vcl::KeyCode aKeyCode(rKEvent.GetKeyCode().GetCode(), rKEvent.GetKeyCode().GetModifier() & ~KEY_MOD1);

                KeyEvent aKEventWithoutMod1(rKEvent.GetCharCode(), aKeyCode, rKEvent.GetRepeat());

                Window::KeyInput(aKEventWithoutMod1);

                bDone = true;

            }

        }

    }

    else

    {

        bDone = mpExtTextView->KeyInput( rKEvent  );

    }

    if ( !bDone )

        Window::KeyInput( rKEvent );

    if (comphelper::LibreOfficeKit::isActive())

        LogicInvalidate(nullptr);

}

void TextWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)

{

    mpExtTextView->Paint(rRenderContext, rRect);

}

void TextWindow::Resize()

{

}

void TextWindow::Command( const CommandEvent& rCEvt )

{

    if ( rCEvt.GetCommand() == CommandEventId::ContextMenu )

    {

        VclPtr<PopupMenu> pPopup = mxParent->CreatePopupMenu();

        bool bEnableCut = true;

        bool bEnableCopy = true;

        bool bEnableDelete = true;

        bool bEnablePaste = true;

        bool bEnableSpecialChar = true;

        bool bEnableUndo = true;

        if ( !mpExtTextView->HasSelection() )

        {

            bEnableCut = false;

            bEnableCopy = false;

            bEnableDelete = false;

        }

        if ( mpExtTextView->IsReadOnly() )

        {

            bEnableCut = false;

            bEnablePaste = false;

            bEnableDelete = false;

            bEnableSpecialChar = false;

        }

        if ( !mpExtTextView->GetTextEngine()->HasUndoManager() || !mpExtTextView->GetTextEngine()->GetUndoManager().GetUndoActionCount() )

        {

            bEnableUndo = false;

        }

        pPopup->EnableItem(pPopup->GetItemId(u"cut"), bEnableCut);

        pPopup->EnableItem(pPopup->GetItemId(u"copy"), bEnableCopy);

        pPopup->EnableItem(pPopup->GetItemId(u"delete"), bEnableDelete);

        pPopup->EnableItem(pPopup->GetItemId(u"paste"), bEnablePaste);

        pPopup->SetItemText(pPopup->GetItemId(u"specialchar"),

            BuilderUtils::convertMnemonicMarkup(VclResId(STR_SPECIAL_CHARACTER_MENU_ENTRY)));

        pPopup->EnableItem(pPopup->GetItemId(u"specialchar"), bEnableSpecialChar);

        pPopup->EnableItem(pPopup->GetItemId(u"undo"), bEnableUndo);

        pPopup->ShowItem(pPopup->GetItemId(u"specialchar"), !vcl::GetGetSpecialCharsFunction());

        mbActivePopup = true;

        Point aPos = rCEvt.GetMousePosPixel();

        if ( !rCEvt.IsMouseEvent() )

        {

            // Sometime do show Menu centered in the selection !!!

            Size aSize = GetOutputSizePixel();

            aPos = Point( aSize.Width()/2, aSize.Height()/2 );

        }

        sal_uInt16 n = pPopup->Execute(*this, aPos);

        OUString sCommand = pPopup->GetItemIdent(n);

        if (sCommand == "undo")

        {

            mpExtTextView->Undo();

            mpExtTextEngine->SetModified( true );

            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );

        }

        else if (sCommand == "cut")

        {

            mpExtTextView->Cut();

            mpExtTextEngine->SetModified( true );

            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );

        }

        else if (sCommand == "copy")

        {

            mpExtTextView->Copy();

        }

        else if (sCommand == "paste")

        {

            mpExtTextView->Paste();

            mpExtTextEngine->SetModified( true );

            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );

        }

        else if (sCommand == "delete")

        {

            mpExtTextView->DeleteSelected();

            mpExtTextEngine->SetModified( true );

            mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );

        }

        else if (sCommand == "selectall")

        {

            mpExtTextView->SetSelection( TextSelection( TextPaM( 0, 0 ), TextPaM( TEXT_PARA_ALL, TEXT_INDEX_ALL ) ) );

        }

        else if (sCommand == "specialchar")

        {

            OUString aChars = vcl::GetGetSpecialCharsFunction()(GetFrameWeld(), GetFont());

            if (!aChars.isEmpty())

            {

                mpExtTextView->InsertText( aChars );

                mpExtTextEngine->SetModified( true );

                mpExtTextEngine->Broadcast( TextHint( SfxHintId::TextModified ) );

            }

        }

        pPopup.reset();

        mbActivePopup = false;

    }

    else

    {

        mpExtTextView->Command( rCEvt );

    }

    if (comphelper::LibreOfficeKit::isActive())

        LogicInvalidate(nullptr);

    Window::Command( rCEvt );

}

void TextWindow::GetFocus()

{

    Window::GetFocus();

    if ( mbActivePopup )

        return;

    bool bGotoCursor = !mpExtTextView->IsReadOnly();

    if ( mbFocusSelectionHide && IsReallyVisible() && mbSelectOnTab && !mbInMBDown )

    {

        // select everything, but do not scroll

        bool bAutoScroll = mpExtTextView->IsAutoScroll();

        mpExtTextView->SetAutoScroll( false );

        mpExtTextView->SetSelection( TextSelection( TextPaM( 0, 0 ), TextPaM( TEXT_PARA_ALL, TEXT_INDEX_ALL ) ) );

        mpExtTextView->SetAutoScroll( bAutoScroll );

        bGotoCursor = false;

    }

    mpExtTextView->SetPaintSelection( true );

    mpExtTextView->ShowCursor( bGotoCursor );

}

void TextWindow::LoseFocus()

{

    Window::LoseFocus();

    if ( mbFocusSelectionHide && !mbActivePopup && mpExtTextView )

        mpExtTextView->SetPaintSelection( false );

}

VclMultiLineEdit::VclMultiLineEdit( vcl::Window* pParent, WinBits nWinStyle )