/* -*- 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 <svl/lstner.hxx>

#include <vcl/transfer.hxx>

#include <vcl/weld/Button.hxx>

#include <vcl/weld/Entry.hxx>

#include <vcl/weld/Label.hxx>

#include <vcl/weld/ToggleButton.hxx>

#include <vcl/weld/TreeView.hxx>

#include <vcl/weld/customweld.hxx>

#include <svx/galmisc.hxx>

#include <svx/galctrl.hxx>

#include <unotools/charclass.hxx>

#include <vector>

#include <com/sun/star/util/XURLTransformer.hpp>

#include <com/sun/star/frame/XDispatch.hpp>

#include <com/sun/star/frame/XFrame.hpp>

#include <com/sun/star/uno/XComponentContext.hpp>

class Gallery;

class GalleryThemeEntry;

class GalleryTheme;

struct ExchangeData;

class SfxItemSet;

class GalleryDragDrop;

class GalleryIconView;

class GalleryPreview;

class SgaObject;

enum GalleryBrowserMode

{

    GALLERYBROWSERMODE_NONE = 0,

    GALLERYBROWSERMODE_ICON = 1,

    GALLERYBROWSERMODE_LIST = 2,

    GALLERYBROWSERMODE_PREVIEW = 3

};

enum class GalleryBrowserTravel

{

    First,

    Last,

    Previous,

    Next

};

enum class GalleryItemFlags

{

    Title = 0x0002,

    Path = 0x0004

};

namespace o3tl

{

template <> struct typed_flags<GalleryItemFlags> : is_typed_flags<GalleryItemFlags, 0x0006>

{

};

}

namespace svx::sidebar

{

class GalleryControl;

}

struct ThemeEntry

{

    OUString maThemeName;

    OUString maEntryTitle;

    size_t mnIdInTheme;

    ThemeEntry(const OUString& rThemeName, const OUString& rEntryTitle, size_t nId)

        : maThemeName(rThemeName)

        , maEntryTitle(rEntryTitle)

        , mnIdInTheme(nId)

    {

    }

};

typedef ::std::vector<ThemeEntry> GalleryThemeEntries;

class GalleryBrowser final : public SfxListener

{

    friend class svx::sidebar::GalleryControl;

private:

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

    std::unique_ptr<weld::TreeView> mxThemes;

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

    Gallery* mpGallery;

    std::unique_ptr<ExchangeData> mpExchangeData;

    std::unique_ptr<SfxItemSet> mpThemePropsDlgItemSet;

    OUString aImgNormal;

    OUString aImgDefault;

    OUString aImgReadOnly;

    GalleryTheme* mpCurTheme;

    std::unique_ptr<GalleryIconView> mxIconView;

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

    std::unique_ptr<weld::TreeView> mxListView;

    std::unique_ptr<GalleryDragDrop> mxDragDropTargetHelper;

    std::unique_ptr<GalleryPreview> mxPreview;

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

    std::unique_ptr<weld::ToggleButton> mxIconButton;

    std::unique_ptr<weld::ToggleButton> mxListButton;

    std::unique_ptr<weld::Entry> mxSearchField;

    std::unique_ptr<weld::Label> mxInfoBar;

    Size maPreviewSize;

    rtl::Reference<GalleryTransferable> m_xHelper;

    sal_uInt32 mnCurActionPos;

    GalleryBrowserMode meMode;

    GalleryBrowserMode meLastMode;

    GalleryThemeEntries maAllThemeEntries;

    GalleryThemeEntries maFoundThemeEntries;

    css::uno::Reference<css::uno::XComponentContext> m_xContext;

    css::uno::Reference<css::util::XURLTransformer> m_xTransformer;

    CharClass m_aCharacterClassficator;

    SfxListener maLocalListener;

    void ImplInsertThemeEntry(const GalleryThemeEntry* pEntry);

    static void ImplFillExchangeData(const GalleryTheme& rThm, ExchangeData& rData);

    void ImplGetExecuteVector(std::vector<OUString>& o_aExec);

    void ImplExecute(std::u16string_view rIdent);

    void ImplGalleryThemeProperties(std::u16string_view rThemeName, bool bCreateNew);

    void EndNewThemePropertiesDlgHdl(sal_Int32 nResult);

    void EndThemePropertiesDlgHdl(sal_Int32 nResult);

    void ImplEndGalleryThemeProperties(bool bCreateNew, sal_Int32 nResult);

    void ImplUpdateViews(sal_uInt16 nSelectionId);

    void ImplUpdateInfoBar();

    sal_uInt32 ImplGetSelectedItemId(const Point* pSelPosPixel, Point& rSelPos);

    void ImplSelectItemId(sal_uInt32 nItemId);

    void ImplUpdateSelection();

    void UpdateRows(bool bVisibleOnly);

    void FillThemeEntries();

    // SfxListener

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

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

    DECL_LINK(SelectThemeHdl, weld::ItemView&, void);

    DECL_LINK(PopupMenuHdl1, const CommandEvent&, bool);

    DECL_LINK(KeyInputHdl1, const KeyEvent&, bool);

    DECL_STATIC_LINK(GalleryBrowser, OnMoreGalleriesClick, weld::Button&, void);

    DECL_LINK(SelectObjectHdl, weld::ItemView&, void);

    DECL_LINK(SelectObjectValueSetHdl, ValueSet*, void);

    DECL_LINK(SelectTbxHdl, weld::Toggleable&, void);

    DECL_LINK(PopupMenuHdl2, const CommandEvent&, bool);

    DECL_LINK(KeyInputHdl2, const KeyEvent&, bool);

    DECL_LINK(RowActivatedHdl, const weld::TreeIter&, bool);

    DECL_LINK(DragBeginHdl, bool&, bool);

    DECL_LINK(VisRowsScrolledHdl, weld::TreeView&, void);

    DECL_LINK(SizeAllocHdl, const Size&, void);

    DECL_LINK(SearchHdl, weld::Entry&, void);

    static GalleryBrowserMode meInitMode;

public:

    GalleryBrowser(weld::Builder& rBuilder, Gallery* pGallery);

    ~GalleryBrowser();

    void SelectTheme(sal_uInt16 nThemePos)

    {

        mxThemes->select(nThemePos);

        SelectThemeHdl(*mxThemes);

    }

    OUString GetSelectedTheme() const { return mxThemes->get_selected_text(); }

    static OUString GetItemText(const SgaObject& rObj, GalleryItemFlags nItemTextFlags);

public:

    void SelectTheme(std::u16string_view rThemeName);

    GalleryBrowserMode GetMode() const { return meMode; }

    void SetMode(GalleryBrowserMode eMode);

    weld::Widget* GetViewWindow() const;

    void Travel(GalleryBrowserTravel eTravel);

    INetURLObject GetURL() const;

    OUString GetFilterName() const;

    sal_Int8 AcceptDrop(const DropTargetHelper& rTarget);

    sal_Int8 ExecuteDrop(const ExecuteDropEvent& rEvt);

    bool StartDrag();

    void TogglePreview();

    bool ShowContextMenu(const CommandEvent& rCEvt);

    bool KeyInput(const KeyEvent& rEvt);

    bool ViewBoxHasFocus() const;

    static css::uno::Reference<css::frame::XFrame> GetFrame();

    const css::uno::Reference<css::util::XURLTransformer>& GetURLTransformer() const

    {

        return m_xTransformer;

    }

    void Execute(std::u16string_view rIdent);

    void DispatchAdd(const css::uno::Reference<css::frame::XDispatch>& rxDispatch,

                     const css::util::URL& rURL);

    DECL_STATIC_LINK(GalleryBrowser, AsyncDispatch_Impl, void*, void);

};

class GalleryDragDrop final : public DropTargetHelper

{

private:

    GalleryBrowser* m_pParent;

    virtual sal_Int8 AcceptDrop(const AcceptDropEvent& /*rEvt*/) override

    {

        return m_pParent->AcceptDrop(*this);

    }

    virtual sal_Int8 ExecuteDrop(const ExecuteDropEvent& rEvt) override

    {

        return m_pParent->ExecuteDrop(rEvt);

    }

public:

    GalleryDragDrop(GalleryBrowser* pParent,

                    const css::uno::Reference<css::datatransfer::dnd::XDropTarget>& rDropTarget)

        : DropTargetHelper(rDropTarget)

        , m_pParent(pParent)

    {

    }

};

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