Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 854 insertions, 0 deletions

diff --git a/sfx2/source/view/lokhelper.cxx b/sfx2/source/view/lokhelper.cxx
new file mode 100644
index 000000000..69cbc8b3d
--- /dev/null
+++ b/sfx2/source/view/lokhelper.cxx
@@ -0,0 +1,854 @@
+/* -*- 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/.
+ */
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <sfx2/lokhelper.hxx>
+
+#include <com/sun/star/frame/Desktop.hpp>
+
+#include <comphelper/processfactory.hxx>
+#include <rtl/strbuf.hxx>
+#include <vcl/lok.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/commandevent.hxx>
+#include <vcl/window.hxx>
+#include <sal/log.hxx>
+#include <sfx2/app.hxx>
+#include <sfx2/msg.hxx>
+#include <sfx2/viewsh.hxx>
+#include <sfx2/request.hxx>
+#include <sfx2/sfxsids.hrc>
+#include <sfx2/viewfrm.hxx>
+#include <LibreOfficeKit/LibreOfficeKitEnums.h>
+#include <comphelper/lok.hxx>
+#include <sfx2/msgpool.hxx>
+
+#include <boost/property_tree/json_parser.hpp>
+
+using namespace com::sun::star;
+
+namespace {
+/// Used to disable callbacks.
+/// Needed to avoid recursion when switching views,
+/// which can cause clients to invoke LOKit API and
+/// implicitly set the view, which might cause an
+/// infinite recursion if not detected and prevented.
+class DisableCallbacks
+{
+public:
+    DisableCallbacks()
+    {
+        assert(m_nDisabled >= 0 && "Expected non-negative DisabledCallbacks state when disabling.");
+        ++m_nDisabled;
+    }
+
+    ~DisableCallbacks()
+    {
+        assert(m_nDisabled > 0 && "Expected positive DisabledCallbacks state when re-enabling.");
+        --m_nDisabled;
+    }
+
+    static inline bool disabled()
+    {
+        return !comphelper::LibreOfficeKit::isActive() || m_nDisabled != 0;
+    }
+
+private:
+    static int m_nDisabled;
+};
+
+int DisableCallbacks::m_nDisabled = 0;
+}
+
+namespace
+{
+LanguageTag g_defaultLanguageTag("en-US", true);
+LOKDeviceFormFactor g_deviceFormFactor = LOKDeviceFormFactor::UNKNOWN;
+}
+
+int SfxLokHelper::createView(SfxViewFrame* pViewFrame, ViewShellDocId docId)
+{
+    assert(docId >= ViewShellDocId(0) && "Cannot createView for invalid (negative) DocId.");
+
+    if (pViewFrame == nullptr)
+        return -1;
+
+    SfxViewShell::SetCurrentDocId(docId);
+    SfxRequest aRequest(pViewFrame, SID_NEWWINDOW);
+    pViewFrame->ExecView_Impl(aRequest);
+    SfxViewShell* pViewShell = SfxViewShell::Current();
+    if (pViewShell == nullptr)
+        return -1;
+
+    assert(pViewShell->GetDocId() == docId && "DocId must be already set!");
+    return static_cast<sal_Int32>(pViewShell->GetViewShellId());
+}
+
+int SfxLokHelper::createView()
+{
+    // Assumes a single document, or at least that the
+    // current view belongs to the document on which the
+    // view will be created.
+    SfxViewShell* pViewShell = SfxViewShell::Current();
+    if (pViewShell == nullptr)
+        return -1;
+
+    return createView(pViewShell->GetViewFrame(), pViewShell->GetDocId());
+}
+
+int SfxLokHelper::createView(int nDocId)
+{
+    const SfxApplication* pApp = SfxApplication::Get();
+    if (pApp == nullptr)
+        return -1;
+
+    // Find a shell with the given DocId.
+    const ViewShellDocId docId(nDocId);
+    for (const SfxViewShell* pViewShell : pApp->GetViewShells_Impl())
+    {
+        if (pViewShell->GetDocId() == docId)
+            return createView(pViewShell->GetViewFrame(), docId);
+    }
+
+    // No frame with nDocId found.
+    return -1;
+}
+
+void SfxLokHelper::destroyView(int nId)
+{
+    const SfxApplication* pApp = SfxApplication::Get();
+    if (pApp == nullptr)
+        return;
+
+    const ViewShellId nViewShellId(nId);
+    std::vector<SfxViewShell*>& rViewArr = pApp->GetViewShells_Impl();
+
+    for (const SfxViewShell* pViewShell : rViewArr)
+    {
+        if (pViewShell->GetViewShellId() == nViewShellId)
+        {
+            SfxViewFrame* pViewFrame = pViewShell->GetViewFrame();
+            SfxRequest aRequest(pViewFrame, SID_CLOSEWIN);
+            pViewFrame->Exec_Impl(aRequest);
+            break;
+        }
+    }
+}
+
+void SfxLokHelper::setView(int nId)
+{
+    SfxApplication* pApp = SfxApplication::Get();
+    if (pApp == nullptr)
+        return;
+
+    const ViewShellId nViewShellId(nId);
+    std::vector<SfxViewShell*>& rViewArr = pApp->GetViewShells_Impl();
+
+    for (const SfxViewShell* pViewShell : rViewArr)
+    {
+        if (pViewShell->GetViewShellId() == nViewShellId)
+        {
+            DisableCallbacks dc;
+
+            // update the current LOK language and locale for the dialog tunneling
+            comphelper::LibreOfficeKit::setLanguageTag(pViewShell->GetLOKLanguageTag());
+            comphelper::LibreOfficeKit::setLocale(pViewShell->GetLOKLocale());
+
+            if (pViewShell == SfxViewShell::Current())
+                return;
+
+            SfxViewFrame* pViewFrame = pViewShell->GetViewFrame();
+            pViewFrame->MakeActive_Impl(false);
+
+            // Make comphelper::dispatchCommand() find the correct frame.
+            uno::Reference<frame::XFrame> xFrame = pViewFrame->GetFrame().GetFrameInterface();
+            uno::Reference<frame::XDesktop2> xDesktop = frame::Desktop::create(comphelper::getProcessComponentContext());
+            xDesktop->setActiveFrame(xFrame);
+            return;
+        }
+    }
+
+}
+
+SfxViewShell* SfxLokHelper::getViewOfId(int nId)
+{
+    SfxApplication* pApp = SfxApplication::Get();
+    if (pApp == nullptr)
+        return nullptr;
+
+    const ViewShellId nViewShellId(nId);
+    std::vector<SfxViewShell*>& rViewArr = pApp->GetViewShells_Impl();
+    for (SfxViewShell* pViewShell : rViewArr)
+    {
+        if (pViewShell->GetViewShellId() == nViewShellId)
+            return pViewShell;
+    }
+
+    return nullptr;
+}
+
+int SfxLokHelper::getView(const SfxViewShell* pViewShell)
+{
+    if (!pViewShell)
+        pViewShell = SfxViewShell::Current();
+    // Still no valid view shell? Then no idea.
+    if (!pViewShell)
+        return -1;
+
+    return static_cast<sal_Int32>(pViewShell->GetViewShellId());
+}
+
+std::size_t SfxLokHelper::getViewsCount(int nDocId)
+{
+    assert(nDocId != -1 && "Cannot getViewsCount for invalid DocId -1");
+
+    SfxApplication* pApp = SfxApplication::Get();
+    if (!pApp)
+        return 0;
+
+    const ViewShellDocId nCurrentDocId(nDocId);
+    std::size_t n = 0;
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        if (pViewShell->GetDocId() == nCurrentDocId)
+            n++;
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+
+    return n;
+}
+
+bool SfxLokHelper::getViewIds(int nDocId, int* pArray, size_t nSize)
+{
+    assert(nDocId != -1 && "Cannot getViewsIds for invalid DocId -1");
+
+    SfxApplication* pApp = SfxApplication::Get();
+    if (!pApp)
+        return false;
+
+    const ViewShellDocId nCurrentDocId(nDocId);
+    std::size_t n = 0;
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        if (pViewShell->GetDocId() == nCurrentDocId)
+        {
+            if (n == nSize)
+                return false;
+
+            pArray[n] = static_cast<sal_Int32>(pViewShell->GetViewShellId());
+            n++;
+        }
+
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+
+    return true;
+}
+
+int SfxLokHelper::getDocumentIdOfView(int nViewId)
+{
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        if (pViewShell->GetViewShellId() == ViewShellId(nViewId))
+            return static_cast<int>(pViewShell->GetDocId());
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+    return -1;
+}
+
+const LanguageTag & SfxLokHelper::getDefaultLanguage()
+{
+    return g_defaultLanguageTag;
+}
+
+void SfxLokHelper::setDefaultLanguage(const OUString& rBcp47LanguageTag)
+{
+    g_defaultLanguageTag = LanguageTag(rBcp47LanguageTag, true);
+}
+
+void SfxLokHelper::setViewLanguage(int nId, const OUString& rBcp47LanguageTag)
+{
+    std::vector<SfxViewShell*>& rViewArr = SfxGetpApp()->GetViewShells_Impl();
+
+    for (SfxViewShell* pViewShell : rViewArr)
+    {
+        if (pViewShell->GetViewShellId() == ViewShellId(nId))
+        {
+            pViewShell->SetLOKLanguageTag(rBcp47LanguageTag);
+            return;
+        }
+    }
+}
+
+void SfxLokHelper::setViewLocale(int nId, const OUString& rBcp47LanguageTag)
+{
+    std::vector<SfxViewShell*>& rViewArr = SfxGetpApp()->GetViewShells_Impl();
+
+    for (SfxViewShell* pViewShell : rViewArr)
+    {
+        if (pViewShell->GetViewShellId() == ViewShellId(nId))
+        {
+            pViewShell->SetLOKLocale(rBcp47LanguageTag);
+            return;
+        }
+    }
+}
+
+LOKDeviceFormFactor SfxLokHelper::getDeviceFormFactor()
+{
+    return g_deviceFormFactor;
+}
+
+void SfxLokHelper::setDeviceFormFactor(std::u16string_view rDeviceFormFactor)
+{
+    if (rDeviceFormFactor == u"desktop")
+        g_deviceFormFactor = LOKDeviceFormFactor::DESKTOP;
+    else if (rDeviceFormFactor == u"tablet")
+        g_deviceFormFactor = LOKDeviceFormFactor::TABLET;
+    else if (rDeviceFormFactor == u"mobile")
+        g_deviceFormFactor = LOKDeviceFormFactor::MOBILE;
+    else
+        g_deviceFormFactor = LOKDeviceFormFactor::UNKNOWN;
+}
+
+/*
+* Used for putting a whole JSON string into a string value
+* e.g { key: "{JSON}" }
+*/
+static OString lcl_sanitizeJSONAsValue(const OString &rStr)
+{
+    if (rStr.getLength() < 1)
+        return rStr;
+    // FIXME: need an optimized 'escape' method for O[U]String.
+    OStringBuffer aBuf(rStr.getLength() + 8);
+    for (sal_Int32 i = 0; i < rStr.getLength(); ++i)
+    {
+        if (rStr[i] == '"' || rStr[i] == '\\')
+            aBuf.append('\\');
+
+        if (rStr[i] != '\n')
+            aBuf.append(rStr[i]);
+    }
+    return aBuf.makeStringAndClear();
+}
+
+static OString lcl_generateJSON(const SfxViewShell* pView, const boost::property_tree::ptree& rTree)
+{
+    assert(pView != nullptr && "pView must be valid");
+    boost::property_tree::ptree aMessageProps = rTree;
+    aMessageProps.put("viewId", SfxLokHelper::getView(pView));
+    aMessageProps.put("part", pView->getPart());
+    std::stringstream aStream;
+    boost::property_tree::write_json(aStream, aMessageProps, false /* pretty */);
+    const std::string aString = aStream.str();
+    return OString(aString.c_str(), aString.size()).trim();
+}
+
+static inline OString lcl_generateJSON(const SfxViewShell* pView, int nViewId, std::string_view rKey,
+                                       const OString& rPayload)
+{
+    assert(pView != nullptr && "pView must be valid");
+    return OString::Concat("{ \"viewId\": \"") + OString::number(nViewId)
+           + "\", \"part\": \"" + OString::number(pView->getPart()) + "\", \"" + rKey + "\": \""
+           + lcl_sanitizeJSONAsValue(rPayload) + "\" }";
+}
+
+static inline OString lcl_generateJSON(const SfxViewShell* pView, std::string_view rKey,
+                                       const OString& rPayload)
+{
+    return lcl_generateJSON(pView, SfxLokHelper::getView(pView), rKey, rPayload);
+}
+
+void SfxLokHelper::notifyOtherView(const SfxViewShell* pThisView, SfxViewShell const* pOtherView,
+                                   int nType, std::string_view rKey, const OString& rPayload)
+{
+    assert(pThisView != nullptr && "pThisView must be valid");
+    if (DisableCallbacks::disabled())
+        return;
+
+    const OString aPayload = lcl_generateJSON(pThisView, rKey, rPayload);
+    const int viewId = SfxLokHelper::getView(pThisView);
+    pOtherView->libreOfficeKitViewCallbackWithViewId(nType, aPayload.getStr(), viewId);
+}
+
+void SfxLokHelper::notifyOtherView(const SfxViewShell* pThisView, SfxViewShell const* pOtherView,
+                                   int nType, const boost::property_tree::ptree& rTree)
+{
+    assert(pThisView != nullptr && "pThisView must be valid");
+    if (DisableCallbacks::disabled())
+        return;
+
+    const int viewId = SfxLokHelper::getView(pThisView);
+    pOtherView->libreOfficeKitViewCallbackWithViewId(nType, lcl_generateJSON(pThisView, rTree).getStr(), viewId);
+}
+
+void SfxLokHelper::notifyOtherViews(const SfxViewShell* pThisView, int nType, std::string_view rKey,
+                                    const OString& rPayload)
+{
+    assert(pThisView != nullptr && "pThisView must be valid");
+    if (DisableCallbacks::disabled())
+        return;
+
+    // Cache the payload so we only have to generate it once, at most.
+    OString aPayload;
+    int viewId = -1;
+
+    const ViewShellDocId nCurrentDocId = pThisView->GetDocId();
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        if (pViewShell != pThisView && nCurrentDocId == pViewShell->GetDocId())
+        {
+            // Payload is only dependent on pThisView.
+            if (aPayload.isEmpty())
+            {
+                aPayload = lcl_generateJSON(pThisView, rKey, rPayload);
+                viewId = SfxLokHelper::getView(pThisView);
+            }
+
+            pViewShell->libreOfficeKitViewCallbackWithViewId(nType, aPayload.getStr(), viewId);
+        }
+
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+}
+
+void SfxLokHelper::notifyOtherViews(const SfxViewShell* pThisView, int nType,
+                                    const boost::property_tree::ptree& rTree)
+{
+    assert(pThisView != nullptr && "pThisView must be valid");
+    if (DisableCallbacks::disabled())
+        return;
+
+    // Cache the payload so we only have to generate it once, at most.
+    OString aPayload;
+    int viewId = -1;
+
+    const ViewShellDocId nCurrentDocId = pThisView->GetDocId();
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        if (pViewShell != pThisView && nCurrentDocId == pViewShell->GetDocId())
+        {
+            // Payload is only dependent on pThisView.
+            if (aPayload.isEmpty())
+            {
+                aPayload = lcl_generateJSON(pThisView, rTree);
+                viewId = SfxLokHelper::getView(pThisView);
+            }
+
+            pViewShell->libreOfficeKitViewCallbackWithViewId(nType, aPayload.getStr(), viewId);
+        }
+
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+}
+
+OString SfxLokHelper::makePayloadJSON(const SfxViewShell* pThisView, int nViewId, std::string_view rKey, const OString& rPayload)
+{
+    return lcl_generateJSON(pThisView, nViewId, rKey, rPayload);
+}
+
+namespace {
+    OUString lcl_getNameForSlot(const SfxViewShell* pShell, sal_uInt16 nWhich)
+    {
+        if (pShell && pShell->GetFrame())
+        {
+            const SfxSlot* pSlot = SfxSlotPool::GetSlotPool(pShell->GetFrame()).GetSlot(nWhich);
+            if (pSlot)
+            {
+                const char* pName = pSlot->GetUnoName();
+                if (pName)
+                {
+                    return ".uno:" + OStringToOUString(pName, RTL_TEXTENCODING_ASCII_US);
+                }
+            }
+        }
+
+        return "";
+    }
+}
+
+void SfxLokHelper::sendUnoStatus(const SfxViewShell* pShell, const SfxPoolItem* pItem)
+{
+    if (!pShell || !pItem || pItem == INVALID_POOL_ITEM || DisableCallbacks::disabled())
+        return;
+
+    boost::property_tree::ptree aItem = pItem->dumpAsJSON();
+
+    if (aItem.count("state"))
+    {
+        OUString sCommand = lcl_getNameForSlot(pShell, pItem->Which());
+        if (!sCommand.isEmpty())
+            aItem.put("commandName", sCommand);
+
+        std::stringstream aStream;
+        boost::property_tree::write_json(aStream, aItem);
+        pShell->libreOfficeKitViewCallback(LOK_CALLBACK_STATE_CHANGED, aStream.str().c_str());
+    }
+}
+
+void SfxLokHelper::notifyWindow(const SfxViewShell* pThisView,
+                                vcl::LOKWindowId nLOKWindowId,
+                                std::u16string_view rAction,
+                                const std::vector<vcl::LOKPayloadItem>& rPayload)
+{
+    assert(pThisView != nullptr && "pThisView must be valid");
+
+    if (nLOKWindowId == 0 || DisableCallbacks::disabled())
+        return;
+
+    OStringBuffer aPayload =
+        "{ \"id\": \"" + OString::number(nLOKWindowId) + "\""
+        ", \"action\": \"" + OUStringToOString(rAction, RTL_TEXTENCODING_UTF8) + "\"";
+
+    for (const auto& rItem: rPayload)
+    {
+        if (!rItem.first.isEmpty() && !rItem.second.isEmpty())
+        {
+            aPayload.append(", \"" + rItem.first + "\": \"" +
+                    rItem.second).append('"');
+        }
+    }
+    aPayload.append('}');
+
+    const OString s = aPayload.makeStringAndClear();
+    pThisView->libreOfficeKitViewCallback(LOK_CALLBACK_WINDOW, s.getStr());
+}
+
+void SfxLokHelper::notifyInvalidation(SfxViewShell const* pThisView, tools::Rectangle const* pRect)
+{
+    if (DisableCallbacks::disabled())
+        return;
+
+    const int nPart = comphelper::LibreOfficeKit::isPartInInvalidation() ? pThisView->getPart() : INT_MIN;
+    pThisView->libreOfficeKitViewInvalidateTilesCallback(pRect, nPart);
+}
+
+void SfxLokHelper::notifyDocumentSizeChanged(SfxViewShell const* pThisView, const OString& rPayload, vcl::ITiledRenderable* pDoc, bool bInvalidateAll)
+{
+    if (!pDoc || pDoc->isDisposed() || DisableCallbacks::disabled())
+        return;
+
+    if (bInvalidateAll)
+    {
+        for (int i = 0; i < pDoc->getParts(); ++i)
+        {
+            tools::Rectangle aRectangle(0, 0, 1000000000, 1000000000);
+            pThisView->libreOfficeKitViewInvalidateTilesCallback(&aRectangle, i);
+        }
+    }
+    pThisView->libreOfficeKitViewCallback(LOK_CALLBACK_DOCUMENT_SIZE_CHANGED, rPayload.getStr());
+}
+
+void SfxLokHelper::notifyDocumentSizeChangedAllViews(vcl::ITiledRenderable* pDoc, bool bInvalidateAll)
+{
+    if (DisableCallbacks::disabled())
+        return;
+
+    // FIXME: Do we know whether it is the views for the document that is in the "current" view that has changed?
+    const SfxViewShell* const pCurrentViewShell = SfxViewShell::Current();
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        // FIXME: What if SfxViewShell::Current() returned null?
+        // Should we then do this for all views of all open documents
+        // or not?
+        if (pCurrentViewShell == nullptr || pViewShell->GetDocId() == pCurrentViewShell-> GetDocId())
+        {
+            SfxLokHelper::notifyDocumentSizeChanged(pViewShell, "", pDoc, bInvalidateAll);
+            bInvalidateAll = false; // we direct invalidations to all views anyway.
+        }
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+}
+
+OString SfxLokHelper::makeVisCursorInvalidation(int nViewId, const OString& rRectangle,
+    bool bMispelledWord, const OString& rHyperlink)
+{
+    if (comphelper::LibreOfficeKit::isViewIdForVisCursorInvalidation())
+    {
+        OString sHyperlink = rHyperlink.isEmpty() ? "{}" : rHyperlink;
+        return OString::Concat("{ \"viewId\": \"") + OString::number(nViewId) +
+            "\", \"rectangle\": \"" + rRectangle +
+            "\", \"mispelledWord\": \"" +  OString::number(bMispelledWord ? 1 : 0) +
+            "\", \"hyperlink\": " + sHyperlink + " }";
+    }
+    else
+    {
+        return rRectangle;
+    }
+}
+
+void SfxLokHelper::notifyAllViews(int nType, const OString& rPayload)
+{
+    if (DisableCallbacks::disabled())
+        return;
+
+    const auto payload = rPayload.getStr();
+    const SfxViewShell* const pCurrentViewShell = SfxViewShell::Current();
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        if (pViewShell->GetDocId() == pCurrentViewShell->GetDocId())
+            pViewShell->libreOfficeKitViewCallback(nType, payload);
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+}
+
+void SfxLokHelper::notifyContextChange(SfxViewShell const* pViewShell, const OUString& aApplication, const OUString& aContext)
+{
+    if (DisableCallbacks::disabled())
+        return;
+
+    OString aBuffer =
+        OUStringToOString(aApplication.replace(' ', '_'), RTL_TEXTENCODING_UTF8) +
+        " " +
+        OUStringToOString(aContext.replace(' ', '_'), RTL_TEXTENCODING_UTF8);
+    pViewShell->libreOfficeKitViewCallback(LOK_CALLBACK_CONTEXT_CHANGED, aBuffer.getStr());
+}
+
+void SfxLokHelper::notifyUpdate(SfxViewShell const* pThisView, int nType)
+{
+    if (DisableCallbacks::disabled())
+        return;
+
+    pThisView->libreOfficeKitViewUpdatedCallback(nType);
+}
+
+void SfxLokHelper::notifyUpdatePerViewId(SfxViewShell const* pThisView, int nType)
+{
+    notifyUpdatePerViewId(pThisView, pThisView, pThisView, nType);
+}
+
+void SfxLokHelper::notifyUpdatePerViewId(SfxViewShell const* pTargetShell, SfxViewShell const* pViewShell,
+    SfxViewShell const* pSourceShell, int nType)
+{
+    if (DisableCallbacks::disabled())
+        return;
+
+    int viewId = SfxLokHelper::getView(pViewShell);
+    int sourceViewId = SfxLokHelper::getView(pSourceShell);
+    pTargetShell->libreOfficeKitViewUpdatedCallbackPerViewId(nType, viewId, sourceViewId);
+}
+
+void SfxLokHelper::notifyOtherViewsUpdatePerViewId(SfxViewShell const* pThisView, int nType)
+{
+    assert(pThisView != nullptr && "pThisView must be valid");
+    if (DisableCallbacks::disabled())
+        return;
+
+    int viewId = SfxLokHelper::getView(pThisView);
+    const ViewShellDocId nCurrentDocId = pThisView->GetDocId();
+    SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+    while (pViewShell)
+    {
+        if (pViewShell != pThisView && nCurrentDocId == pViewShell->GetDocId())
+            pViewShell->libreOfficeKitViewUpdatedCallbackPerViewId(nType, viewId, viewId);
+
+        pViewShell = SfxViewShell::GetNext(*pViewShell);
+    }
+}
+
+namespace
+{
+    struct LOKAsyncEventData
+    {
+        int mnView; // Window is not enough.
+        VclPtr<vcl::Window> mpWindow;
+        VclEventId mnEvent;
+        MouseEvent maMouseEvent;
+        KeyEvent maKeyEvent;
+        OUString maText;
+    };
+
+    void LOKPostAsyncEvent(void* pEv, void*)
+    {
+        std::unique_ptr<LOKAsyncEventData> pLOKEv(static_cast<LOKAsyncEventData*>(pEv));
+        if (pLOKEv->mpWindow->isDisposed())
+            return;
+
+        int nView = SfxLokHelper::getView(nullptr);
+        if (nView != pLOKEv->mnView)
+        {
+            SAL_INFO("sfx.view", "LOK - view mismatch " << nView << " vs. " << pLOKEv->mnView);
+            SfxLokHelper::setView(pLOKEv->mnView);
+        }
+
+        if (!pLOKEv->mpWindow->HasChildPathFocus(true))
+        {
+            SAL_INFO("sfx.view", "LOK - focus mismatch, switching focus");
+            pLOKEv->mpWindow->GrabFocus();
+        }
+
+        VclPtr<vcl::Window> pFocusWindow = pLOKEv->mpWindow->GetFocusedWindow();
+        if (!pFocusWindow)
+            pFocusWindow = pLOKEv->mpWindow;
+
+        if (pLOKEv->mpWindow->isDisposed())
+            return;
+
+        switch (pLOKEv->mnEvent)
+        {
+        case VclEventId::WindowKeyInput:
+        {
+            sal_uInt16 nRepeat = pLOKEv->maKeyEvent.GetRepeat();
+            KeyEvent singlePress(pLOKEv->maKeyEvent.GetCharCode(),
+                                 pLOKEv->maKeyEvent.GetKeyCode());
+            for (sal_uInt16 i = 0; i <= nRepeat; ++i)
+                if (!pFocusWindow->isDisposed())
+                    pFocusWindow->KeyInput(singlePress);
+            break;
+        }
+        case VclEventId::WindowKeyUp:
+            if (!pFocusWindow->isDisposed())
+                pFocusWindow->KeyUp(pLOKEv->maKeyEvent);
+            break;
+        case VclEventId::WindowMouseButtonDown:
+            pLOKEv->mpWindow->LogicMouseButtonDown(pLOKEv->maMouseEvent);
+            // Invoke the context menu
+            if (pLOKEv->maMouseEvent.GetButtons() & MOUSE_RIGHT)
+            {
+                const CommandEvent aCEvt(pLOKEv->maMouseEvent.GetPosPixel(), CommandEventId::ContextMenu, true, nullptr);
+                pLOKEv->mpWindow->Command(aCEvt);
+            }
+            break;
+        case VclEventId::WindowMouseButtonUp:
+            pLOKEv->mpWindow->LogicMouseButtonUp(pLOKEv->maMouseEvent);
+
+            // sometimes MouseButtonDown captures mouse and starts tracking, and VCL
+            // will not take care of releasing that with tiled rendering
+            if (pLOKEv->mpWindow->IsTracking())
+                pLOKEv->mpWindow->EndTracking();
+
+            break;
+        case VclEventId::WindowMouseMove:
+            pLOKEv->mpWindow->LogicMouseMove(pLOKEv->maMouseEvent);
+            break;
+        case VclEventId::ExtTextInput:
+        case VclEventId::EndExtTextInput:
+            pLOKEv->mpWindow->PostExtTextInputEvent(pLOKEv->mnEvent, pLOKEv->maText);
+            break;
+        default:
+            assert(false);
+            break;
+        }
+    }
+
+    void postEventAsync(LOKAsyncEventData *pEvent)
+    {
+        if (!pEvent->mpWindow || pEvent->mpWindow->isDisposed())
+        {
+            SAL_WARN("vcl", "Async event post - but no valid window as destination " << pEvent->mpWindow.get());
+            delete pEvent;
+            return;
+        }
+
+        pEvent->mnView = SfxLokHelper::getView(nullptr);
+        if (vcl::lok::isUnipoll())
+        {
+            if (!Application::IsMainThread())
+                SAL_WARN("lok", "Posting event directly but not called from main thread!");
+            LOKPostAsyncEvent(pEvent, nullptr);
+        }
+        else
+            Application::PostUserEvent(Link<void*, void>(pEvent, LOKPostAsyncEvent));
+    }
+}
+
+void SfxLokHelper::postKeyEventAsync(const VclPtr<vcl::Window> &xWindow,
+                                     int nType, int nCharCode, int nKeyCode, int nRepeat)
+{
+    LOKAsyncEventData* pLOKEv = new LOKAsyncEventData;
+    switch (nType)
+    {
+    case LOK_KEYEVENT_KEYINPUT:
+        pLOKEv->mnEvent = VclEventId::WindowKeyInput;
+        break;
+    case LOK_KEYEVENT_KEYUP:
+        pLOKEv->mnEvent = VclEventId::WindowKeyUp;
+        break;
+    default:
+        assert(false);
+    }
+    pLOKEv->maKeyEvent = KeyEvent(nCharCode, nKeyCode, nRepeat);
+    pLOKEv->mpWindow = xWindow;
+    postEventAsync(pLOKEv);
+}
+
+void SfxLokHelper::setBlockedCommandList(int nViewId, const char* blockedCommandList)
+{
+    SfxViewShell* pViewShell = SfxLokHelper::getViewOfId(nViewId);
+
+    if(pViewShell)
+    {
+        pViewShell->setBlockedCommandList(blockedCommandList);
+    }
+}
+
+void SfxLokHelper::postExtTextEventAsync(const VclPtr<vcl::Window> &xWindow,
+                                         int nType, const OUString &rText)
+{
+    LOKAsyncEventData* pLOKEv = new LOKAsyncEventData;
+    switch (nType)
+    {
+    case LOK_EXT_TEXTINPUT:
+        pLOKEv->mnEvent = VclEventId::ExtTextInput;
+        pLOKEv->maText = rText;
+        break;
+    case LOK_EXT_TEXTINPUT_END:
+        pLOKEv->mnEvent = VclEventId::EndExtTextInput;
+        pLOKEv->maText = "";
+        break;
+    default:
+        assert(false);
+    }
+    pLOKEv->mpWindow = xWindow;
+    postEventAsync(pLOKEv);
+}
+
+void SfxLokHelper::postMouseEventAsync(const VclPtr<vcl::Window> &xWindow, LokMouseEventData const & rLokMouseEventData)
+{
+    LOKAsyncEventData* pLOKEv = new LOKAsyncEventData;
+    switch (rLokMouseEventData.mnType)
+    {
+    case LOK_MOUSEEVENT_MOUSEBUTTONDOWN:
+        pLOKEv->mnEvent = VclEventId::WindowMouseButtonDown;
+        break;
+    case LOK_MOUSEEVENT_MOUSEBUTTONUP:
+        pLOKEv->mnEvent = VclEventId::WindowMouseButtonUp;
+        break;
+    case LOK_MOUSEEVENT_MOUSEMOVE:
+        pLOKEv->mnEvent = VclEventId::WindowMouseMove;
+        break;
+    default:
+        assert(false);
+    }
+
+    // no reason - just always true so far.
+    assert (rLokMouseEventData.meModifiers == MouseEventModifiers::SIMPLECLICK);
+
+    pLOKEv->maMouseEvent = MouseEvent(rLokMouseEventData.maPosition, rLokMouseEventData.mnCount,
+                                      rLokMouseEventData.meModifiers, rLokMouseEventData.mnButtons,
+                                      rLokMouseEventData.mnModifier);
+    if (rLokMouseEventData.maLogicPosition)
+    {
+        pLOKEv->maMouseEvent.setLogicPosition(*rLokMouseEventData.maLogicPosition);
+    }
+    pLOKEv->mpWindow = xWindow;
+    postEventAsync(pLOKEv);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */