/* -*- 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/.

 */

#ifndef INCLUDED_SFX2_LOKHELPER_HXX

#define INCLUDED_SFX2_LOKHELPER_HXX

#include <com/sun/star/ui/XAcceleratorConfiguration.hpp>

#include <com/sun/star/security/XCertificate.hpp>

#include <com/sun/star/xml/crypto/XCertificateCreator.hpp>

#include <vcl/IDialogRenderable.hxx>

#include <vcl/ITiledRenderable.hxx>

#include <vcl/event.hxx>

#include <vcl/vclptr.hxx>

#include <vcl/window.hxx>

#include <sfx2/dllapi.h>

#include <sfx2/viewsh.hxx>

#include <tools/gen.hxx>

#include <cstddef>

#include <rtl/strbuf.hxx>

#include <rtl/string.hxx>

#include <list>

#include <optional>

#include <string_view>

#include <unordered_map>

#include <boost/property_tree/ptree_fwd.hpp>

#define LOK_NOTIFY_LOG_TO_CLIENT 1

#define LOK_LOG_STREAM(level, area, stream) \

    do { \

            ::std::ostringstream lok_detail_stream; \

            lok_detail_stream << level << ':'; \

            if (std::strcmp(level, "debug") != 0) \

                lok_detail_stream << area << ':'; \

            const char* const where = SAL_WHERE; \

            lok_detail_stream << where << stream; \

            SfxLokHelper::notifyLog(lok_detail_stream); \

        } while (false)

#if LOK_NOTIFY_LOG_TO_CLIENT > 0

#define LOK_INFO(area, stream) \

    LOK_LOG_STREAM("info", area, stream) \

#define LOK_WARN(area, stream) \

    LOK_LOG_STREAM("warn", area, stream)

#else

#define LOK_INFO(area, stream) \

    SAL_INFO(area, stream) \

#define LOK_WARN(area, stream) \

    SAL_WARN(area, stream)

#endif

struct SFX2_DLLPUBLIC LokMouseEventData

{

    int mnType;

    Point maPosition;

    int mnCount;

    MouseEventModifiers meModifiers;

    int mnButtons;

    int mnModifier;

    std::optional<Point> maLogicPosition;

    LokMouseEventData(int nType, Point aPosition, int nCount, MouseEventModifiers eModifiers, int nButtons, int nModifier)

        : mnType(nType)

        , maPosition(aPosition)

        , mnCount(nCount)

        , meModifiers(eModifiers)

        , mnButtons(nButtons)

        , mnModifier(nModifier)

    {}

};

namespace com::sun::star::ui { struct ContextChangeEventObject; };

class SFX2_DLLPUBLIC SfxLokHelper

{

public:

    /// Gets the short cut accelerators.

    static std::unordered_map<OUString, css::uno::Reference<css::ui::XAcceleratorConfiguration>>& getAcceleratorConfs();

    /// Create a new view shell from the current view frame.

    /// This assumes a single document is ever loaded.

    static int createView();

    /// Create a new view shell for the given DocId, for multi-document support.

    static int createView(int nDocId);

    /// Destroy a view shell from the global shell list.

    static void destroyView(int nId);

    /// Set a view shell as current one.

    static void setView(int nId);

    /// Determines if a call to setView() is in progress or not.

    static bool isSettingView();

    /// Set the edit mode for a document with callbacks disabled.

    static void setEditMode(int nMode, vcl::ITiledRenderable* pDoc);

    /// Get view shell with id

    static SfxViewShell* getViewOfId(int nId);

    /// Get view id of view shell

    static int getView(const SfxViewShell& rViewShell);

    /// Get the currently active view shell id

    static int getCurrentView();

    /// Get the number of views of the current DocId.

    static std::size_t getViewsCount(int nDocId);

    /// Get the number of docs

    static std::size_t getDocsCount();

    /// Get the most recently active viewId of the DocId.

    static int getViewId(int nDocId);

    /// Get viewIds of views of the DocId.

    static bool getViewIds(int nDocId, int* pArray, size_t nSize);

    /// Set View Blocked for some uno commands

    static void setBlockedCommandList(int nViewId, const char* blockedCommandList);

    /// Get the document id for a view

    static int getDocumentIdOfView(int nViewId);

    /// Get the default language that should be used for views

    static const LanguageTag & getDefaultLanguage();

    /// Set language of the given view.

    static void setViewLanguage(int nId, const OUString& rBcp47LanguageTag);

    /// Set the default language for views.

    static void setDefaultLanguage(const OUString& rBcp47LanguageTag);

    /// Enable/Disable AT support for the given view.

    static void setAccessibilityState(int nId, bool nEnabled);

    // Set the readonly state of the view.

    static void setViewReadOnly(int nId, bool readOnly);

    /// Get the language used by the loading view (used for all save operations).

    static const LanguageTag & getLoadLanguage();

    /// Set the language used by the loading view (used for all save operations).

    static void setLoadLanguage(const OUString& rBcp47LanguageTag);

    /// Set the locale for the given view.

    static void setViewLocale(int nId, const OUString& rBcp47LanguageTag);

    /// Set color preview state for the given view.

    static void setColorPreviewState(int nId, bool nEnabled);

    /// Set timezone of the given view.

    /// @isSet true to use @rTimezone, even if it's empty. Otherwise, no timezone.

    /// @rTimezone the value to set (which could be empty).

    static void setDefaultTimezone(bool isSet, const OUString& rTimezone);

    /// Get timezone of the given view. See @setDefaultTimezone.

    static std::pair<bool, OUString> getDefaultTimezone();

    /// Set the timezone of the given view.

    static void setViewTimezone(int nId, bool isSet, const OUString& rTimezone);

    /// Get the timezone of the given view.

    static std::pair<bool, OUString> getViewTimezone(int nId);

    /// Iterate over any view shell, except pThisViewShell, passing it to the f function.

    template<typename ViewShellType, typename FunctionType>

    static void forEachOtherView(ViewShellType* pThisViewShell, FunctionType f);

    /// Invoke the LOK callback of all other views showing the same document as pThisView, with a payload of rKey-rPayload.

    static void notifyOtherViews(const SfxViewShell* pThisView, int nType, std::string_view rKey,

                                 const OString& rPayload);

    /// Invoke the LOK callback of all views except pThisView, with a JSON payload created from the given property tree.

    static void notifyOtherViews(const SfxViewShell* pThisView, int nType,

                                 const boost::property_tree::ptree& rTree);

    /// Same as notifyOtherViews(), but works on a selected "other" view, not on all of them.

    static void notifyOtherView(const SfxViewShell& rThisView, SfxViewShell const* pOtherView,

                                int nType, std::string_view rKey, const OString& rPayload);

    /// Same as notifyOtherViews(), the property-tree version, but works on a selected "other" view, not on all of them.

    static void notifyOtherView(const SfxViewShell& rThisView, SfxViewShell const* pOtherView,

                                int nType, const boost::property_tree::ptree& rTree);

    /// Emits a LOK_CALLBACK_STATE_CHANGED

    static void sendUnoStatus(const SfxViewShell* pShell, const SfxPoolItem* pItem);

    /// Emits a LOK_CALLBACK_WINDOW

    static void notifyWindow(const SfxViewShell* pThisView,

                             vcl::LOKWindowId nWindowId,

                             std::u16string_view rAction,

                             const std::vector<vcl::LOKPayloadItem>& rPayload = std::vector<vcl::LOKPayloadItem>());

    /// Emits a LOK_CALLBACK_DOCUMENT_SIZE_CHANGED - if @bInvalidateAll - first invalidates all parts

    static void notifyDocumentSizeChanged(SfxViewShell const* pThisView, const OString& rPayload, vcl::ITiledRenderable* pDoc, bool bInvalidateAll = true);

    /// Emits a LOK_CALLBACK_DOCUMENT_SIZE_CHANGED for all views of the same document - if @bInvalidateAll - first invalidates all parts

    static void notifyDocumentSizeChangedAllViews(vcl::ITiledRenderable* pDoc, bool bInvalidateAll = true);

    /// Emits a LOK_CALLBACK_STATE_CHANGED for all views of the same document - with payload ".uno:CurrentPageResize"

    static void notifyCurrentPageSizeChangedAllViews(const vcl::ITiledRenderable* pDoc);

    /// Emits a LOK_CALLBACK_DOCUMENT_SIZE_CHANGED for all views of the same document with the same part

    static void notifyPartSizeChangedAllViews(vcl::ITiledRenderable* pDoc, int nPart);

    /// Emits a LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR

    static void notifyCursorInvalidation(SfxViewShell const* pThisView, tools::Rectangle const * pRect, bool bControlEvent, int windowID);

    /// Emits a LOK_CALLBACK_INVALIDATE_TILES, but tweaks it according to setOptionalFeatures() if needed.

    static void notifyInvalidation(SfxViewShell const* pThisView, int nPart, tools::Rectangle const *);

    /// Emits a LOK_CALLBACK_INVALIDATE_TILES, but tweaks it according to setOptionalFeatures() if needed

    /// uses the Part reported by pThisView

    static void notifyInvalidation(SfxViewShell const* pThisView, tools::Rectangle const *);

    /// Notifies all views with the given type and payload.

    static void notifyAllViews(int nType, const OString& rPayload);

    /// Notify about the editing context change.

    static void notifyContextChange(const css::ui::ContextChangeEventObject& rEvent);

    /// Emits an LOK_CALLBACK_VIEW_RENDER_STATE

    static void notifyViewRenderState(SfxViewShell const* pViewShell, vcl::ITiledRenderable* pDoc);

    // Notify about the given type needing an update.

    static void notifyUpdate(SfxViewShell const* pViewShell, int nType);

    // Notify about the given type needing a per-viewid update.

    static void notifyUpdatePerViewId(SfxViewShell const& rViewShell, int nType);

    /// Same as notifyUpdatePerViewId(), pTargetShell will be notified, relevant viewId in pViewShell,

    /// pSourceView->getLOKPayload() will be called to get the data.

    static void notifyUpdatePerViewId(SfxViewShell const& rTargetShell, SfxViewShell const* pViewShell,

        SfxViewShell const& rSourceShell, int nType);

    // Notify other views about the given type needing a per-viewid update.

    static void notifyOtherViewsUpdatePerViewId(SfxViewShell const* pViewShell, int nType);

    static OString makePayloadJSON(const SfxViewShell* pThisView, int nViewId, std::string_view rKey, const OString& rPayload);

    /// Makes a LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR payload, but tweaks it according to setOptionalFeatures() if needed.

    static OString makeVisCursorInvalidation(int nViewId, const OString& rRectangle,

                                             bool bMispelledWord = false, const OString& rHyperlink = ""_ostr);

    /// Helper for posting async key event

    static void postKeyEventAsync(const VclPtr<vcl::Window> &xWindow,

                                  int nType, int nCharCode, int nKeyCode, int nRepeat = 0);

    /// Helper for posting input event

    static void postExtTextEventAsync(const VclPtr<vcl::Window> &xWindow,

                                      int nType, const OUString &rText);

    /// Helper for posting async mouse event

    static void postMouseEventAsync(const VclPtr<vcl::Window> &xWindow, LokMouseEventData const & rLokMouseEventData);

    /// A special value to signify 'infinity'.

    /// This value is chosen such that sal_Int32 will not overflow when manipulated.

    static const tools::Long MaxTwips = 1e9;

    /// Helper for diagnosing run-time problems

    static void dumpState(rtl::OStringBuffer &rState);

    /// Process the mouse event in the currently active in-place component (if any).

    /// Returns true if the event has been processed, and no further processing is necessary.

    static bool testInPlaceComponentMouseEventHit(SfxViewShell* pViewShell, int nType, int nX,

                                                  int nY, int nCount, int nButtons, int nModifier,

                                                  double fScaleX, double fScaleY,

                                                  bool bNegativeX = false);

    static VclPtr<vcl::Window> getInPlaceDocWindow(SfxViewShell* pViewShell);

    /// Sends Network Access error to LOK

    static void sendNetworkAccessError(std::string_view rAction);

    static void notifyLog(const std::ostringstream& stream);

    /// Extracts base64 data inside begin/end markers.

    static std::string extractCertificate(const std::string& rCert);

    /// Extracts multiple certificates in base64 from inside begin/end markers.

    static std::vector<std::string> extractCertificates(const std::string& rCerts);

    /// Takes a single CA certificate to add them to the list of trusted certificates.

    static css::uno::Reference<css::security::XCertificate> addCertificate(const css::uno::Reference<css::xml::crypto::XCertificateCreator>& xCertificateCreator, const css::uno::Sequence<sal_Int8>& rCert);

    /// Takes a CA chain to add them to the list of trusted certificates.

    static void addCertificates(const std::vector<std::string>& rCerts);

    /// Parses a private key + certificate pair.

    static css::uno::Reference<css::security::XCertificate> getSigningCertificate(const std::string& rCert, const std::string& rKey);

    /// Decides if it's OK to call getCommandValues(rCommand).

    static bool supportsCommand(std::u16string_view rCommand);

    /// Returns information about a given command in JSON format.

    static void getCommandValues(tools::JsonWriter& rJsonWriter, std::string_view rCommand);

    /// Parses key-value parameters of rCommand.

    static std::map<OUString, OUString> parseCommandParameters(std::u16string_view rCommand);

    /// Registers function pointers in comphelper/ to set/get of the current LOK view.

    static void registerViewCallbacks();

    static void dispatchUnoCommand(const boost::property_tree::ptree& tree);

private:

    static int createView(SfxViewFrame& rViewFrame, ViewShellDocId docId);

};

template<typename ViewShellType, typename FunctionType>

void SfxLokHelper::forEachOtherView(ViewShellType* pThisViewShell, FunctionType f)

{

    SfxViewShell* pViewShell = SfxViewShell::GetFirst();

    while (pViewShell)

    {

        auto pOtherViewShell = dynamic_cast<ViewShellType*>(pViewShell);

        if (pOtherViewShell != nullptr && pOtherViewShell != pThisViewShell && pOtherViewShell->GetDocId() == pThisViewShell->GetDocId())

        {

            f(pOtherViewShell);

        }

        pViewShell = SfxViewShell::GetNext(*pViewShell);

    }

}

Unexecuted instantiation: tabview3.cxx:void SfxLokHelper::forEachOtherView<ScTabViewShell, ScTabView::OnLibreOfficeKitTabChanged()::$_0>(ScTabViewShell*, ScTabView::OnLibreOfficeKitTabChanged()::$_0)

Unexecuted instantiation: tabview3.cxx:void SfxLokHelper::forEachOtherView<ScTabViewShell, ScTabView::KillEditView(bool)::$_0>(ScTabViewShell*, ScTabView::KillEditView(bool)::$_0)

Unexecuted instantiation: tabview5.cxx:void SfxLokHelper::forEachOtherView<ScTabViewShell, ScTabView::~ScTabView()::$_0>(ScTabViewShell*, ScTabView::~ScTabView()::$_0)

Unexecuted instantiation: tabvwsh3.cxx:void SfxLokHelper::forEachOtherView<ScTabViewShell, ScTabViewShell::Execute(SfxRequest&)::$_2>(ScTabViewShell*, ScTabViewShell::Execute(SfxRequest&)::$_2)

Unexecuted instantiation: tabvwsh3.cxx:void SfxLokHelper::forEachOtherView<ScTabViewShell, ScTabViewShell::Execute(SfxRequest&)::$_3>(ScTabViewShell*, ScTabViewShell::Execute(SfxRequest&)::$_3)

Unexecuted instantiation: viewdata.cxx:void SfxLokHelper::forEachOtherView<ScTabViewShell, (anonymous namespace)::lcl_LOKRemoveWindow(ScTabViewShell*, ScSplitPos)::$_0>(ScTabViewShell*, (anonymous namespace)::lcl_LOKRemoveWindow(ScTabViewShell*, ScSplitPos)::$_0)

Unexecuted instantiation: viewdata.cxx:void SfxLokHelper::forEachOtherView<ScTabViewShell, ScViewData::SetEditEngine(ScSplitPos, ScEditEngineDefaulter&, vcl::Window*, short, int)::$_0>(ScTabViewShell*, ScViewData::SetEditEngine(ScSplitPos, ScEditEngineDefaulter&, vcl::Window*, short, int)::$_0)

/// If LOK is active, switch to the language/locale of the provided shell and back on delete.

class SfxLokLanguageGuard

{

    bool m_bSetLanguage;

    const SfxViewShell* m_pOldShell;

public:

    SfxLokLanguageGuard(const SfxViewShell* pNewShell);

    ~SfxLokLanguageGuard();

};

typedef std::list<SfxViewShell*> ViewShellList;

/// Used to keep track of the last N views that text edited a document through an EditView

class SFX2_DLLPUBLIC LOKEditViewHistory

{

public:

    typedef std::list<SfxViewShell*> ViewShellList;

    typedef std::unordered_map<int, ViewShellList> EditViewHistoryMap;

    static void Update(bool bRemove = false);

    static ViewShellList GetHistoryForDoc(ViewShellDocId aDocId);

    static ViewShellList GetSortedViewsForDoc(ViewShellDocId aDocId);

private:

    static EditViewHistoryMap maEditViewHistory;

};

#endif

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