/* -*- 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 <set>

#include <vector>

#include <memory>

#include <vcl/toolbox.hxx>

#include <vcl/InterimItemWindow.hxx>

#include <vcl/weld/Builder.hxx>

#include <vcl/weld/Button.hxx>

#include <vcl/weld/ComboBox.hxx>

#include <vcl/weld/Container.hxx>

#include <vcl/weld/ScrolledWindow.hxx>

#include <vcl/weld/customweld.hxx>

#include <sfx2/childwin.hxx>

#include <svl/lstner.hxx>

#include <svtools/stringtransfer.hxx>

#include <vcl/window.hxx>

#include <formula/opcode.hxx>

#include <svx/weldeditview.hxx>

#include "inputhdl.hxx"

class EditView;

class ScAccessibleEditLineTextData;

class ScAccessibleEditObject;

class ScTextWndGroup;

class ScInputBarGroup;

class ScTabViewShell;

class ScTextWndBase

{

public:

    virtual void            InsertAccessibleTextData( ScAccessibleEditLineTextData& rTextData ) = 0;

    virtual void            RemoveAccessibleTextData( ScAccessibleEditLineTextData& rTextData ) = 0;

    virtual void            SetTextString( const OUString& rString, bool bKitUpdate ) = 0;

    virtual const OUString& GetTextString() const = 0;

    virtual void            StartEditEngine(const ErrorHdl& errorHdl) = 0;

    virtual void            StopEditEngine( bool bAll ) = 0;

    virtual EditView*       GetEditView() const = 0;

    virtual bool            HasEditView() const = 0;

    virtual void            MakeDialogEditView() = 0;

    virtual void            SetFormulaMode( bool bSet ) = 0;

    virtual bool            IsInputActive() = 0;

    virtual void            TextGrabFocus() = 0;

    virtual tools::Long            GetNumLines() const = 0;

    virtual ~ScTextWndBase() {}

};

class ScTextWnd : public WeldEditView

                , public ScTextWndBase

{

public:

    ScTextWnd(ScTextWndGroup& rParent, ScTabViewShell* pViewSh);

    virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;

    virtual ~ScTextWnd() override;

    virtual void            SetTextString( const OUString& rString, bool bKitUpdate ) override;

    virtual const OUString& GetTextString() const override;

    bool                    IsInputActive() override;

    virtual EditView*       GetEditView() const override;

    virtual bool            HasEditView() const override;

    const OutputDevice&     GetEditViewDevice() const;

                        // for function autopilots

    virtual void            MakeDialogEditView() override;

    virtual void            StartEditEngine(const ErrorHdl& errorHdl) override;

    virtual void            StopEditEngine( bool bAll ) override;

    virtual void            TextGrabFocus() override;

    virtual void            StyleUpdated() override;

    // Triggered if scroll bar state should change

    virtual void EditViewScrollStateChange() override;

    virtual void            SetFormulaMode( bool bSet ) override;

    virtual rtl::Reference<comphelper::OAccessible> CreateAccessible() override;

    virtual void            InsertAccessibleTextData( ScAccessibleEditLineTextData& rTextData ) override;

    virtual void            RemoveAccessibleTextData( ScAccessibleEditLineTextData& rTextData ) override;

    virtual void            Resize() override;

    int GetPixelHeightForLines(tools::Long nLines);

    int GetEditEngTxtHeight() const;

    virtual tools::Long GetNumLines() const override;

    void SetNumLines(tools::Long nLines);

    tools::Long GetLastNumExpandedLines() const { return mnLastExpandedLines; }

    void SetLastNumExpandedLines(tools::Long nLastExpandedLines) { mnLastExpandedLines = nLastExpandedLines; }

    void DoScroll();

    DECL_LINK(ModifyHdl, LinkParamNone*, void);

    DECL_LINK(EditStatusHdl, EditStatus&, void);

protected:

    virtual void    Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect ) override;

    virtual bool    MouseMove( const MouseEvent& rMEvt ) override;

    virtual bool    MouseButtonDown( const MouseEvent& rMEvt ) override;

    virtual bool    MouseButtonUp( const MouseEvent& rMEvt ) override;

    virtual bool    Command( const CommandEvent& rCEvt ) override;

    virtual bool    KeyInput(const KeyEvent& rKEvt) override;

    virtual bool    CanFocus() const override;

    virtual void    GetFocus() override;

    virtual bool    StartDrag() override;

private:

    void            ImplInitSettings();

    void            UpdateAutoCorrFlag();

    void SetScrollBarRange();

    void InitEditEngine();

    void UpdateFocus(const ErrorHdl& errorHdl);

    rtl::Reference<svt::OStringTransferable> m_xHelper;

    typedef ::std::vector< ScAccessibleEditLineTextData* > AccTextDataVector;

    rtl::Reference<ScAccessibleEditObject> pAcc;

    OUString    aString;

    vcl::Font   aTextFont;

    AccTextDataVector maAccTextDatas;   // #i105267# text data may be cloned, remember all copies

    bool        bIsRTL;

    bool        bIsInsertMode;

    bool        bFormulaMode;

    // #102710#; this flag should be true if a key input or a command is handled

    // it prevents the call of InputChanged in the ModifyHandler of the EditEngine

    bool        bInputMode;

    ScTabViewShell* mpViewShell;

    ScTextWndGroup& mrGroupBar;

    tools::Long mnLastExpandedLines;

    bool mbInvalidate;

};

class ScPosWnd final : public InterimItemWindow, public SfxListener        // Display position

{

private:

    std::unique_ptr<weld::ComboBox> m_xWidget;

    ImplSVEvent* m_nAsyncGetFocusId;

    OUString aPosStr;

    void* nTipVisible;

    bool bFormulaMode;

    std::set<OUString> aRangeNames;

public:

    ScPosWnd(vcl::Window* pParent);

    virtual         ~ScPosWnd() override;

    virtual void    dispose() override;

    void            SetPos( const OUString& rPosStr );        // Displayed Text

    void            SetFormulaMode( bool bSet );

    static OUString createLocalRangeName(std::u16string_view rName, std::u16string_view rTableName);

private:

    DECL_LINK(OnAsyncGetFocus, void*, void);

    DECL_LINK(KeyInputHdl, const KeyEvent&, bool);

    DECL_LINK(ActivateHdl, weld::ComboBox&, bool);

    DECL_LINK(ModifyHdl, weld::ComboBox&, void);

    DECL_LINK(FocusInHdl, weld::Widget&, void);

    DECL_LINK(FocusOutHdl, weld::Widget&, void);

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

private:

    void            FillRangeNames(bool initialize = false);

    void            FillFunctions();

    void            DoEnter();

    void            HideTip();

    void            ReleaseFocus_Impl();

};

class ScTextWndGroup : public ScTextWndBase

{

public:

    ScTextWndGroup(ScInputBarGroup& pParent, ScTabViewShell* pViewSh);

    virtual ~ScTextWndGroup() override;

    virtual void            InsertAccessibleTextData(ScAccessibleEditLineTextData& rTextData) override;

    virtual EditView*       GetEditView() const override;

    const OutputDevice&     GetEditViewDevice() const;

    Point                   GetCursorScreenPixelPos(bool bBelowLine);

    tools::Long             GetLastNumExpandedLines() const;

    void SetLastNumExpandedLines(tools::Long nLastExpandedLines);

    virtual tools::Long     GetNumLines() const override;

    int                     GetPixelHeightForLines(tools::Long nLines);

    weld::ScrolledWindow&   GetScrollWin();

    virtual const OUString& GetTextString() const override;

    virtual bool            HasEditView() const override;

    virtual bool            IsInputActive() override;

    virtual void            MakeDialogEditView() override;

    virtual void            RemoveAccessibleTextData(ScAccessibleEditLineTextData& rTextData) override;

    void                    SetScrollPolicy();

    void                    SetNumLines(tools::Long nLines);

    virtual void            SetFormulaMode(bool bSet) override;

    virtual void            SetTextString(const OUString& rString, bool bKitUpdate) override;

    virtual void            StartEditEngine(const ErrorHdl& errorHdl) override;

    virtual void            StopEditEngine(bool bAll) override;

    virtual void            TextGrabFocus() override;

    vcl::Window&            GetVclParent() { return mrParent; }

private:

    std::unique_ptr<ScTextWnd> mxTextWnd;

    std::unique_ptr<weld::ScrolledWindow> mxScrollWin;

    std::unique_ptr<weld::CustomWeld> mxTextWndWin;

    vcl::Window& mrParent;

    DECL_LINK(Impl_ScrollHdl, weld::ScrolledWindow&, void);

};

class ScInputBarGroup : public InterimItemWindow

                      , public ScTextWndBase

{

public:

                            ScInputBarGroup(vcl::Window* Parent, ScTabViewShell* pViewSh);

    virtual                 ~ScInputBarGroup() override;

    virtual void            dispose() override;

    virtual void            InsertAccessibleTextData(ScAccessibleEditLineTextData& rTextData) override;

    virtual void            RemoveAccessibleTextData(ScAccessibleEditLineTextData& rTextData) override;

    void                    SetTextString(const OUString& rString, bool bKitUpdate) override;

    void                    StartEditEngine(const ErrorHdl& errorHdl) override;

    virtual EditView*       GetEditView() const override;

    virtual bool            HasEditView() const override;

    Point                   GetCursorScreenPixelPos(bool bBelowLine);

    virtual void            Resize() override;

    virtual void            DataChanged(const DataChangedEvent& rDCEvt) override;

    virtual const OUString& GetTextString() const override;

    virtual void            StopEditEngine(bool bAll) override;

    virtual void            TextGrabFocus() override;

    void                    SetFormulaMode(bool bSet) override;

    void                    MakeDialogEditView() override;

    bool                    IsInputActive() override;

    void                    IncrementVerticalSize();

    void                    DecrementVerticalSize();

    void                    NumLinesChanged();

    virtual tools::Long     GetNumLines() const override { return mxTextWndGroup->GetNumLines(); }

    int GetPixelHeightForLines(tools::Long nLines) const

    {

        return mxTextWndGroup->GetPixelHeightForLines(nLines);

    }

    weld::Builder&          GetBuilder() { return *m_xBuilder; }

private:

    void            TriggerToolboxLayout();

    void            SetBackgrounds();

    std::unique_ptr<weld::Container> mxBackground;

    std::unique_ptr<ScTextWndGroup> mxTextWndGroup;

    std::unique_ptr<weld::Button> mxButtonUp;

    std::unique_ptr<weld::Button> mxButtonDown;

    DECL_LINK(ClickHdl, weld::Button&, void);

};

class ScInputWindow final : public ToolBox                        // Parent toolbox

{

public:

                    ScInputWindow( vcl::Window* pParent, const SfxBindings* pBind );

    virtual         ~ScInputWindow() override;

    virtual void    dispose() override;

    virtual void    PixelInvalidate(const tools::Rectangle* pRectangle) override;

    virtual void    SetSizePixel( const Size& rNewSize ) override;

    virtual void    Resize() override;

    virtual void    Select() override;

    void            SetFuncString( const OUString& rString, bool bDoEdit = true );

    void            SetPosString( const OUString& rStr );

    void            SetTextString(const OUString& rString, bool bKitUpdate);

    void            SetOkCancelMode();

    void            SetSumAssignMode();

    void            EnableButtons( bool bEnable );

    /// Update Input bar after the number of lines was changed externally

    void            NumLinesChanged();

    void            StartFormula();

    void            SetFormulaMode( bool bSet );

    bool            IsInputActive();

    EditView*       GetEditView();

    vcl::Window*    GetEditWindow();

    Point           GetCursorScreenPixelPos(bool bBelowLine = false);

    void            TextGrabFocus();

    void            TextInvalidate();

    void            SwitchToTextWin();

    void            PosGrabFocus();

    // For function autopilots

    void            MakeDialogEditView();

    void            StopEditEngine( bool bAll );

    void            SetInputHandler( ScInputHandler* pNew );

    ScInputHandler* GetInputHandler(){ return pInputHdl;}

    void            StateChanged( StateChangedType nType ) override;

    virtual void    DataChanged( const DataChangedEvent& rDCEvt ) override;

    virtual void    MouseButtonUp( const MouseEvent& rMEvt ) override;

    virtual void    MouseButtonDown( const MouseEvent& rMEvt ) override;

    virtual void    MouseMove( const MouseEvent& rMEvt ) override;

    void            NotifyLOKClient();

    void MenuHdl(std::u16string_view command);

    DECL_LINK( DropdownClickHdl, ToolBox*, void );

    void            AutoSum( bool& bRangeFinder, bool& bSubTotal, OpCode eCode );

private:

    bool IsPointerAtResizePos();

    VclPtr<ScPosWnd>  aWndPos;

    VclPtr<ScInputBarGroup> mxTextWindow;

    ScInputHandler* pInputHdl;

    ScTabViewShell* mpViewShell;

    tools::Long     mnMaxY;

    tools::Long     mnStandardItemHeight;

    bool            bIsOkCancelMode;

    bool            bInResize;

};

class ScInputWindowWrapper : public SfxChildWindow

{

public:

    ScInputWindowWrapper(vcl::Window* pParent, sal_uInt16 nId, SfxBindings& rBindings,

                         SfxChildWinInfo& rInfo);

    SFX_DECL_CHILDWINDOW_WITHID(ScInputWindowWrapper);

};

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