/* -*- 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 <config_wasm_strip.h>

#include "SidebarTxtControl.hxx"

#include <docsh.hxx>

#include <doc.hxx>

#include <PostItMgr.hxx>

#include <cmdid.h>

#include <strings.hrc>

#include <unotools/securityoptions.hxx>

#include <officecfg/Office/Common.hxx>

#include <sfx2/viewfrm.hxx>

#include <sfx2/bindings.hxx>

#include <sfx2/dispatch.hxx>

#include <sfx2/sfxhelp.hxx>

#include <vcl/commandevent.hxx>

#include <vcl/event.hxx>

#include <vcl/ptrstyle.hxx>

#include <vcl/rendercontext/AntialiasingFlags.hxx>

#include <vcl/svapp.hxx>

#include <vcl/weld/weld.hxx>

#include <vcl/gradient.hxx>

#include <vcl/settings.hxx>

#include <editeng/outliner.hxx>

#include <editeng/editeng.hxx>

#include <editeng/editview.hxx>

#include <editeng/flditem.hxx>

#include <com/sun/star/awt/GradientStyle.hpp>

#include <uitool.hxx>

#include <view.hxx>

#include <wrtsh.hxx>

#include <AnnotationWin.hxx>

#include <IDocumentDeviceAccess.hxx>

#if ENABLE_YRS

#include <IDocumentState.hxx>

#include <swmodule.hxx>

#endif

#include <redline.hxx>

#include <memory>

namespace sw::sidebarwindows {

SidebarTextControl::SidebarTextControl(sw::annotation::SwAnnotationWin& rSidebarWin,

                                       SwView& rDocView,

                                       SwPostItMgr& rPostItMgr)

    : mrSidebarWin(rSidebarWin)

    , mrDocView(rDocView)

    , mrPostItMgr(rPostItMgr)

    , mbMouseDownGainingFocus(false)

{

}

EditView* SidebarTextControl::GetEditView() const

{

    OutlinerView* pOutlinerView = mrSidebarWin.GetOutlinerView();

    if (!pOutlinerView)

        return nullptr;

    return &pOutlinerView->GetEditView();

}

EditEngine* SidebarTextControl::GetEditEngine() const

{

    OutlinerView* pOutlinerView = mrSidebarWin.GetOutlinerView();

    if (!pOutlinerView)

        return nullptr;

    return &pOutlinerView->GetEditView().getEditEngine();

}

void SidebarTextControl::SetDrawingArea(weld::DrawingArea* pDrawingArea)

{

    Size aSize(0, 0);

    pDrawingArea->set_size_request(aSize.Width(), aSize.Height());

    SetOutputSizePixel(aSize);

    weld::CustomWidgetController::SetDrawingArea(pDrawingArea);

    EnableRTL(false);

    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();

    Color aBgColor = rStyleSettings.GetWindowColor();

    OutputDevice& rDevice = pDrawingArea->get_ref_device();

    rDevice.SetMapMode(MapMode(MapUnit::MapTwip));

    rDevice.SetBackground(aBgColor);

    Size aOutputSize(rDevice.PixelToLogic(aSize));

    EditView* pEditView = GetEditView();

    pEditView->setEditViewCallbacks(this);

    EditEngine& rEditEngine = pEditView->getEditEngine();

    // For tdf#143443 note we want an 'infinite' height initially (which is the

    // editengines default). For tdf#144686 it is helpful if the initial width

    // is the "SidebarWidth" so the calculated text height is always meaningful

    // for layout in the sidebar.

    Size aPaperSize(mrPostItMgr.GetSidebarWidth(), rEditEngine.GetPaperSize().Height());

    rEditEngine.SetPaperSize(aPaperSize);

    rEditEngine.SetRefDevice(mrDocView.GetWrtShell().getIDocumentDeviceAccess().getReferenceDevice(false));

    pEditView->SetOutputArea(tools::Rectangle(Point(0, 0), aOutputSize));

    pEditView->SetBackgroundColor(aBgColor);

    pDrawingArea->set_cursor(PointerStyle::Text);

#if !ENABLE_WASM_STRIP_ACCESSIBILITY

    InitAccessible();

#endif

}

void SidebarTextControl::SetCursorLogicPosition(const Point& rPosition, bool bPoint, bool bClearMark)

{

    Point aMousePos = EditViewOutputDevice().PixelToLogic(rPosition);

    m_xEditView->SetCursorLogicPosition(aMousePos, bPoint, bClearMark);

}

void SidebarTextControl::GetFocus()

{

    WeldEditView::GetFocus();

    if ( !mrSidebarWin.IsMouseOver() )

        Invalidate();

    mrSidebarWin.SetActiveSidebarWin();

}

void SidebarTextControl::LoseFocus()

{

    // write the visible text back into the SwField

    mrSidebarWin.UpdateData();

    WeldEditView::LoseFocus();

    if ( !mrSidebarWin.IsMouseOver() )

    {

        Invalidate();

    }

    // set false for autoscroll to typing location

    mrSidebarWin.LockView(false);

}

OUString SidebarTextControl::RequestHelp(tools::Rectangle& rHelpRect)

{

    if (EditView* pEditView = GetEditView())

    {

        Point aPos = rHelpRect.TopLeft();

        const OutputDevice& rOutDev = pEditView->GetOutputDevice();

        Point aLogicClick = rOutDev.PixelToLogic(aPos);

        const SvxFieldItem* pItem = pEditView->GetField(aLogicClick);

        if (pItem)

        {

            const SvxFieldData* pField = pItem->GetField();

            const SvxURLField* pURL = dynamic_cast<const SvxURLField*>( pField  );

            if (pURL)

            {

                rHelpRect = tools::Rectangle(aPos, Size(50, 10));

                return SfxHelp::GetURLHelpText(pURL->GetURL());

            }

        }

    }

    TranslateId pResId;

    switch( mrSidebarWin.GetLayoutStatus() )

    {

        case SwPostItHelper::INSERTED:  pResId = STR_REDLINE_INSERT; break;

        case SwPostItHelper::DELETED:   pResId = STR_REDLINE_DELETE; break;

        default: break;

    }

    SwContentAtPos aContentAtPos( IsAttrAtPos::Redline );

    if ( pResId &&

         mrDocView.GetWrtShell().GetContentAtPos( mrSidebarWin.GetAnchorPos(), aContentAtPos ) )

    {

        OUString sText = SwResId(pResId) + ": " +

                        aContentAtPos.aFnd.pRedl->GetAuthorString() + " - " +

                        GetAppLangDateTimeString( aContentAtPos.aFnd.pRedl->GetTimeStamp() );

        return sText;

    }

    return OUString();

}

#if ENABLE_YRS

void SidebarTextControl::EditViewInvalidate(const tools::Rectangle& rRect)

{

    SAL_INFO("sw.yrs", "YRS EditViewInvalidate");

    mrDocView.GetDocShell()->GetDoc()->getIDocumentState().YrsNotifyCursorUpdate();

    mrDocView.GetDocShell()->GetDoc()->getIDocumentState().YrsCommitModified(true);

    return WeldEditView::EditViewInvalidate(rRect);

}

void SidebarTextControl::EditViewSelectionChange()

{

    SAL_INFO("sw.yrs", "YRS EditViewSelectionChange");

    mrDocView.GetDocShell()->GetDoc()->getIDocumentState().YrsNotifyCursorUpdate();

    return WeldEditView::EditViewSelectionChange();

}

#endif

void SidebarTextControl::EditViewScrollStateChange()

{

    mrSidebarWin.SetScrollbar();

}

void SidebarTextControl::DrawForPage(OutputDevice* pDev, const Point& rPt)

{

    //Take the control's height, but overwrite the scrollbar area if there was one

    OutputDevice& rDevice = GetDrawingArea()->get_ref_device();

    Size aSize(rDevice.PixelToLogic(GetOutputSizePixel()));

    if (OutlinerView* pOutlinerView = mrSidebarWin.GetOutlinerView())

    {

        pOutlinerView->GetOutliner().SetPaperSize(aSize);

        pOutlinerView->GetOutliner().DrawText_ToRectangle(*pDev, tools::Rectangle(rPt, aSize));

    }

    if ( mrSidebarWin.GetLayoutStatus()!=SwPostItHelper::DELETED )

        return;

    auto popIt = pDev->ScopedPush(vcl::PushFlags::LINECOLOR);

    pDev->SetLineColor(mrSidebarWin.GetChangeColor());

    Point aBottomRight(rPt);

    aBottomRight.Move(aSize);

    pDev->DrawLine(rPt,  aBottomRight);

    Point aTopRight(rPt);

    aTopRight.Move(Size(aSize.Width(), 0));

    Point aBottomLeft(rPt);

    aBottomLeft.Move(Size(0, aSize.Height()));

    pDev->DrawLine(aTopRight, aBottomLeft);

}

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

{

    Size aSize = GetOutputSizePixel();

    Point aPos;

    if (!rRenderContext.GetSettings().GetStyleSettings().GetHighContrastMode())

    {

        if (mrSidebarWin.IsMouseOverSidebarWin() || HasFocus())

        {

            rRenderContext.DrawGradient(tools::Rectangle(aPos, rRenderContext.PixelToLogic(aSize)),

                                        Gradient(css::awt::GradientStyle_LINEAR, mrSidebarWin.ColorDark(), mrSidebarWin.ColorDark()));

        }

        else

        {

            rRenderContext.DrawGradient(tools::Rectangle(aPos, rRenderContext.PixelToLogic(aSize)),

                           Gradient(css::awt::GradientStyle_LINEAR, mrSidebarWin.ColorLight(), mrSidebarWin.ColorDark()));

        }

    }

    DoPaint(rRenderContext, rRect);

#if ENABLE_YRS

    if (EditView *const pEditView{GetEditView()})

    {

        rRenderContext.Push(vcl::PushFlags::ALL);

        rRenderContext.SetClipRegion();

        ::std::vector<::std::pair<OUString, ::std::vector<tools::Rectangle>>> rects;

        pEditView->YrsGetSelectionRectangles(rects);

        for (auto const& it : rects)

        {

            ::std::size_t const authorId{SwModule::get()->InsertRedlineAuthor(it.first)};

            Color const color{SwPostItMgr::GetColorAnchor(authorId)};

            PaintSelection(rRenderContext, rRect, it.second, color);

        }

        rRenderContext.Pop();

    }

#endif

    if (mrSidebarWin.GetLayoutStatus() != SwPostItHelper::DELETED)

        return;

    const AntialiasingFlags nFormerAntialiasing( rRenderContext.GetAntialiasing() );

    const bool bIsAntiAliasing = officecfg::Office::Common::Drawinglayer::AntiAliasing::get();

    if ( bIsAntiAliasing )

        rRenderContext.SetAntialiasing(AntialiasingFlags::Enable);

    rRenderContext.SetLineColor(mrSidebarWin.GetChangeColor());

    rRenderContext.DrawLine(rRenderContext.PixelToLogic(aPos),

                            rRenderContext.PixelToLogic(aPos + Point(aSize.Width(),

                                                                     aSize.Height() * 0.95)));

    rRenderContext.DrawLine(rRenderContext.PixelToLogic(aPos + Point(aSize.Width(),

                                                                     0)),

                            rRenderContext.PixelToLogic(aPos + Point(0,

                                                                     aSize.Height() * 0.95)));

    if ( bIsAntiAliasing )

        rRenderContext.SetAntialiasing(nFormerAntialiasing);

}

void SidebarTextControl::MakeVisible()

{

    //let's make sure we see our note

    mrPostItMgr.MakeVisible(&mrSidebarWin);

}

bool SidebarTextControl::KeyInput( const KeyEvent& rKeyEvt )

{

    const vcl::KeyCode& rKeyCode = rKeyEvt.GetKeyCode();

    const sal_uInt16 nKey = rKeyCode.GetCode();

    if (nKey == KEY_F12 && getenv("SW_DEBUG"))

    {

        if (rKeyEvt.GetKeyCode().IsShift())

        {

            mrDocView.GetDocShell()->GetDoc()->dumpAsXml();

            return true;

        }

    }

    bool bDone = false;

    if ( ( rKeyCode.IsMod1() && rKeyCode.IsMod2() ) &&

         ( (nKey == KEY_PAGEUP) || (nKey == KEY_PAGEDOWN) ) )

    {

        mrSidebarWin.SwitchToPostIt(nKey);

        bDone = true;

    }

    else if ( nKey == KEY_ESCAPE ||

              ( rKeyCode.IsMod1() &&

                ( nKey == KEY_PAGEUP ||

                  nKey == KEY_PAGEDOWN ) ) )

    {

        mrSidebarWin.SwitchToFieldPos();

        bDone = true;

    }

    else if ( rKeyCode.GetFullCode() == KEY_INSERT )

    {

        mrSidebarWin.ToggleInsMode();

        bDone = true;

    }

    else

    {

        tools::Long aOldHeight = mrSidebarWin.GetPostItTextHeight();

        /// HACK: need to switch off processing of Undo/Redo in Outliner

        if ( !( (nKey == KEY_Z || nKey == KEY_Y) && rKeyCode.IsMod1()) )

        {

            bool bIsProtected = mrSidebarWin.IsReadOnlyOrProtected();

            if ( !bIsProtected || !EditEngine::DoesKeyChangeText(rKeyEvt) )

            {

                EditView* pEditView = GetEditView();

                bDone = pEditView && pEditView->PostKeyEvent(rKeyEvt);

            }

            else

                mrDocView.GetWrtShell().InfoReadOnlyDialog(false);

        }

        if (bDone)

        {

            MakeVisible();

            mrSidebarWin.ResizeIfNecessary( aOldHeight, mrSidebarWin.GetPostItTextHeight() );

        }

        else

        {

            // write back data first when showing navigator

            if ( nKey==KEY_F5 )

                mrSidebarWin.UpdateData();

            bDone = mrDocView.KeyInput(rKeyEvt);

        }

    }

    mrDocView.GetViewFrame().GetBindings().InvalidateAll(false);

    return bDone;

}

bool SidebarTextControl::MouseButtonDown(const MouseEvent& rMEvt)

{

    if (EditView* pEditView = GetEditView())

    {

        bool bExecuteMod = SvtSecurityOptions::IsOptionSet( SvtSecurityOptions::EOption::CtrlClickHyperlink);

        if ( !bExecuteMod || (rMEvt.GetModifier() == KEY_MOD1))

        {

            const OutputDevice& rOutDev = pEditView->GetOutputDevice();

            Point aLogicClick = rOutDev.PixelToLogic(rMEvt.GetPosPixel());

            if (const SvxFieldItem* pItem = pEditView->GetField(aLogicClick))

            {

                const SvxFieldData* pField = pItem->GetField();

                const SvxURLField* pURL = dynamic_cast<const SvxURLField*>( pField  );

                if ( pURL )

                {

                    pEditView->MouseButtonDown( rMEvt );

                    SwWrtShell &rSh = mrDocView.GetWrtShell();

                    const OUString& sURL( pURL->GetURL() );

                    const OUString& sTarget( pURL->GetTargetFrame() );

                    ::LoadURL(rSh, sURL, LoadUrlFlags::NONE, sTarget);

                    return true;

                }

            }

        }

    }

    mbMouseDownGainingFocus = !HasFocus();

    GrabFocus();

    bool bRet = WeldEditView::MouseButtonDown(rMEvt);

    mrDocView.GetViewFrame().GetBindings().InvalidateAll(false);

    return bRet;

}

bool SidebarTextControl::MouseButtonUp(const MouseEvent& rMEvt)

{

    bool bRet = WeldEditView::MouseButtonUp(rMEvt);

    if (mbMouseDownGainingFocus)

    {

        MakeVisible();

        mbMouseDownGainingFocus = false;

    }

    return bRet;

}

bool SidebarTextControl::MouseMove(const MouseEvent& rMEvt)

{

    if (rMEvt.IsEnterWindow())

        GetDrawingArea()->set_cursor(PointerStyle::Text);

    return WeldEditView::MouseMove(rMEvt);

}

IMPL_LINK( SidebarTextControl, OnlineSpellCallback, SpellCallbackInfo&, rInfo, void )

{

    if ( rInfo.nCommand == SpellCallbackCommand::STARTSPELLDLG )

    {

        mrDocView.GetViewFrame().GetDispatcher()->Execute( FN_SPELL_GRAMMAR_DIALOG, SfxCallMode::ASYNCHRON);

    }

}

bool SidebarTextControl::Command( const CommandEvent& rCEvt )

{

    EditView* pEditView = GetEditView();

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

    {

        if (IsMouseCaptured())

            ReleaseMouse();

        bool bUsedSpellPopup = false;

        if ( !mrSidebarWin.IsReadOnlyOrProtected() &&

             pEditView &&

             pEditView->IsWrongSpelledWordAtPos( rCEvt.GetMousePosPixel(), true ))

        {

            Link<SpellCallbackInfo&,void> aLink = LINK(this, SidebarTextControl, OnlineSpellCallback);

            bUsedSpellPopup = pEditView->ExecuteSpellPopup(rCEvt.GetMousePosPixel(), aLink);

        }

        if (!bUsedSpellPopup)

        {

            Point aPos;

            if (rCEvt.IsMouseEvent())

                aPos = rCEvt.GetMousePosPixel();

            else

            {

                const Size aSize = GetOutputSizePixel();

                aPos = Point( aSize.getWidth()/2, aSize.getHeight()/2 );

            }

            // tdf#164072: don't use SwAnnotationWin itself as popup parent because it

            // may get disposed while the popup menu is still executed

            vcl::Window* pParentWin = mrSidebarWin.GetParent();

            assert(pParentWin);

            aPos += mrSidebarWin.GetWindowExtentsRelative(*pParentWin).TopLeft();

            SfxDispatcher::ExecutePopup(pParentWin, &aPos);

        }

        return true;

    }

    else if (rCEvt.GetCommand() == CommandEventId::Wheel)

    {

        // if no scrollbar, or extra keys held scroll the document and consume

        // this event, otherwise don't consume and let the event get to the

        // surrounding scrolled window

        if (!mrSidebarWin.IsScrollbarVisible())

        {

            mrDocView.HandleWheelCommands(rCEvt);

            return true;

        }

        else

        {

            const CommandWheelData* pData = rCEvt.GetWheelData();

            if (pData->IsShift() || pData->IsMod1() || pData->IsMod2())

            {

                mrDocView.HandleWheelCommands(rCEvt);

                return true;

            }

        }

    }

    return WeldEditView::Command(rCEvt);

}

} // end of namespace sw::sidebarwindows

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */