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, 521 insertions, 0 deletions

diff --git a/sfx2/source/notify/globalevents.cxx b/sfx2/source/notify/globalevents.cxx
new file mode 100644
index 000000000..cd6b08007
--- /dev/null
+++ b/sfx2/source/notify/globalevents.cxx
@@ -0,0 +1,521 @@
+/* -*- 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 <sal/types.h>
+
+#include <com/sun/star/task/theJobExecutor.hpp>
+#include <com/sun/star/container/XNameReplace.hpp>
+#include <com/sun/star/container/XSet.hpp>
+#include <com/sun/star/document/XEventListener.hpp>
+#include <com/sun/star/document/XEventBroadcaster.hpp>
+#include <com/sun/star/document/XDocumentEventListener.hpp>
+#include <com/sun/star/frame/XGlobalEventBroadcaster.hpp>
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/lang/NoSupportException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Type.hxx>
+
+#include <cppuhelper/implbase.hxx>
+#include <comphelper/interfacecontainer4.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <comphelper/enumhelper.hxx>
+#include <rtl/ref.hxx>
+#include <sfx2/app.hxx>
+#include <tools/diagnose_ex.h>
+#include <unotools/eventcfg.hxx>
+#include <eventsupplier.hxx>
+
+#include <mutex>
+#include <set>
+#include <vector>
+
+using namespace css;
+
+namespace {
+
+typedef ::std::vector< css::uno::Reference< css::frame::XModel > > TModelList;
+
+
+//TODO: remove support of obsolete document::XEventBroadcaster/Listener
+class SfxGlobalEvents_Impl : public ::cppu::WeakImplHelper< css::lang::XServiceInfo
+                                                           , css::frame::XGlobalEventBroadcaster
+                                                           , css::document::XEventBroadcaster
+                                                           , css::document::XEventListener
+                                                           , css::lang::XComponent
+                                                            >
+{
+    std::mutex m_aLock;
+    rtl::Reference< GlobalEventConfig > m_xEvents;
+    css::uno::Reference< css::document::XEventListener > m_xJobExecutorListener;
+    ::comphelper::OInterfaceContainerHelper4<document::XEventListener> m_aLegacyListeners;
+    ::comphelper::OInterfaceContainerHelper4<document::XDocumentEventListener> m_aDocumentListeners;
+    std::multiset<css::uno::Reference<css::lang::XEventListener>> m_disposeListeners;
+    TModelList m_lModels;
+    bool m_disposed;
+
+public:
+    explicit SfxGlobalEvents_Impl(const css::uno::Reference < css::uno::XComponentContext >& rxContext);
+
+    virtual OUString SAL_CALL getImplementationName() override
+    {
+        return "com.sun.star.comp.sfx2.GlobalEventBroadcaster";
+    }
+
+    virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
+    {
+        return cppu::supportsService(this, ServiceName);
+    }
+
+    virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
+    {
+        css::uno::Sequence< OUString > aSeq { "com.sun.star.frame.GlobalEventBroadcaster" };
+        return aSeq;
+    }
+
+    // css.document.XEventBroadcaster
+    virtual css::uno::Reference< css::container::XNameReplace > SAL_CALL getEvents() override;
+
+    virtual void SAL_CALL addEventListener(const css::uno::Reference< css::document::XEventListener >& xListener) override;
+
+    virtual void SAL_CALL removeEventListener( const css::uno::Reference< css::document::XEventListener >& xListener) override;
+
+    // css.document.XDocumentEventBroadcaster
+    virtual void SAL_CALL addDocumentEventListener( const css::uno::Reference< css::document::XDocumentEventListener >& Listener ) override;
+    virtual void SAL_CALL removeDocumentEventListener( const css::uno::Reference< css::document::XDocumentEventListener >& Listener ) override;
+    virtual void SAL_CALL notifyDocumentEvent( const OUString& EventName, const css::uno::Reference< css::frame::XController2 >& ViewController, const css::uno::Any& Supplement ) override;
+
+    // css.document.XEventListener
+    virtual void SAL_CALL notifyEvent(const css::document::EventObject& aEvent) override;
+
+    // css.document.XDocumentEventListener
+    virtual void SAL_CALL documentEventOccured( const css::document::DocumentEvent& Event ) override;
+
+    // css.container.XSet
+    virtual sal_Bool SAL_CALL has(const css::uno::Any& aElement) override;
+
+    virtual void SAL_CALL insert(const css::uno::Any& aElement) override;
+
+    virtual void SAL_CALL remove(const css::uno::Any& aElement) override;
+
+    // css.container.XEnumerationAccess
+    virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createEnumeration() override;
+
+    // css.container.XElementAccess
+    virtual css::uno::Type SAL_CALL getElementType() override;
+
+    virtual sal_Bool SAL_CALL hasElements() override;
+
+    // css.lang.XEventListener
+    virtual void SAL_CALL disposing(const css::lang::EventObject& aEvent) override;
+
+    // css.lang.XComponent
+    void SAL_CALL dispose() override;
+
+    void SAL_CALL addEventListener(css::uno::Reference<css::lang::XEventListener> const & xListener)
+        override;
+
+    void SAL_CALL removeEventListener(
+        css::uno::Reference<css::lang::XEventListener> const & aListener) override;
+
+private:
+
+    // threadsafe
+    void implts_notifyJobExecution(const css::document::EventObject& aEvent);
+    void implts_checkAndExecuteEventBindings(const css::document::DocumentEvent& aEvent);
+    void implts_notifyListener(const css::document::DocumentEvent& aEvent);
+
+    // not threadsafe
+    TModelList::iterator impl_searchDoc(const css::uno::Reference< css::frame::XModel >& xModel);
+};
+
+SfxGlobalEvents_Impl::SfxGlobalEvents_Impl( const uno::Reference < uno::XComponentContext >& rxContext)
+    : m_xJobExecutorListener( task::theJobExecutor::get( rxContext ), uno::UNO_QUERY_THROW )
+    , m_disposed(false)
+{
+    osl_atomic_increment(&m_refCount);
+    SfxApplication::GetOrCreate();
+    m_xEvents = new GlobalEventConfig();
+    osl_atomic_decrement(&m_refCount);
+}
+
+uno::Reference< container::XNameReplace > SAL_CALL SfxGlobalEvents_Impl::getEvents()
+{
+    // SAFE ->
+    std::scoped_lock aLock(m_aLock);
+    if (m_disposed) {
+        throw css::lang::DisposedException();
+    }
+    return m_xEvents;
+    // <- SAFE
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::addEventListener(const uno::Reference< document::XEventListener >& xListener)
+{
+    std::unique_lock g(m_aLock);
+    if (m_disposed)
+        throw css::lang::DisposedException();
+    m_aLegacyListeners.addInterface(g, xListener);
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::removeEventListener(const uno::Reference< document::XEventListener >& xListener)
+{
+    std::unique_lock g(m_aLock);
+    // The below removeInterface will silently do nothing when m_disposed
+    m_aLegacyListeners.removeInterface(g, xListener);
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::addDocumentEventListener( const uno::Reference< document::XDocumentEventListener >& Listener )
+{
+    std::unique_lock g(m_aLock);
+    if (m_disposed)
+        throw css::lang::DisposedException();
+    m_aDocumentListeners.addInterface( g, Listener );
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::removeDocumentEventListener( const uno::Reference< document::XDocumentEventListener >& Listener )
+{
+    std::unique_lock g(m_aLock);
+    // The below removeInterface will silently do nothing when m_disposed:
+    m_aDocumentListeners.removeInterface( g, Listener );
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::notifyDocumentEvent( const OUString& /*_EventName*/,
+        const uno::Reference< frame::XController2 >& /*_ViewController*/, const uno::Any& /*_Supplement*/ )
+{
+    // we're a multiplexer only, no chance to generate artificial events here
+    throw lang::NoSupportException(OUString(), *this);
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::notifyEvent(const document::EventObject& aEvent)
+{
+    // The below implts_* will silently do nothing when m_disposed:
+    document::DocumentEvent aDocEvent(aEvent.Source, aEvent.EventName, nullptr, uno::Any());
+    implts_notifyJobExecution(aEvent);
+    implts_checkAndExecuteEventBindings(aDocEvent);
+    implts_notifyListener(aDocEvent);
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::documentEventOccured( const document::DocumentEvent& Event )
+{
+    // The below implts_* will silently do nothing when m_disposed:
+    implts_notifyJobExecution(document::EventObject(Event.Source, Event.EventName));
+    implts_checkAndExecuteEventBindings(Event);
+    implts_notifyListener(Event);
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::disposing(const lang::EventObject& aEvent)
+{
+    uno::Reference< frame::XModel > xDoc(aEvent.Source, uno::UNO_QUERY);
+
+    // SAFE ->
+    std::scoped_lock g(m_aLock);
+    TModelList::iterator pIt = impl_searchDoc(xDoc);
+    if (pIt != m_lModels.end())
+        m_lModels.erase(pIt);
+    // <- SAFE
+}
+
+void SfxGlobalEvents_Impl::dispose() {
+    std::multiset<css::uno::Reference<css::lang::XEventListener>> listeners;
+    {
+        std::unique_lock g(m_aLock);
+        if (m_disposed)
+            return;
+        m_disposed = true;
+        auto tmpEvents = std::move(m_xEvents);
+        auto tmpModels = std::move(m_lModels);
+        m_xJobExecutorListener.clear();
+        m_disposeListeners.swap(listeners);
+        m_lModels.clear();
+        g.unlock();
+        // clear events&models outside lock because it will trigger a call back into us
+        tmpEvents.clear();
+        tmpModels.clear();
+        g.lock();
+        m_aLegacyListeners.disposeAndClear(g, {static_cast<OWeakObject *>(this)});
+        m_aDocumentListeners.disposeAndClear(g, {static_cast<OWeakObject *>(this)});
+    }
+    for (auto const & i: listeners) {
+        try {
+            i->disposing({static_cast< cppu::OWeakObject * >(this)});
+        } catch (css::lang::DisposedException &) {}
+    }
+}
+
+void SfxGlobalEvents_Impl::addEventListener(
+    css::uno::Reference<css::lang::XEventListener> const & xListener)
+{
+    if (!xListener.is()) {
+        throw css::uno::RuntimeException("null listener");
+    }
+    {
+        std::scoped_lock g(m_aLock);
+        if (!m_disposed) {
+            m_disposeListeners.insert(xListener);
+            return;
+        }
+    }
+    try {
+        xListener->disposing({static_cast< cppu::OWeakObject * >(this)});
+    } catch (css::lang::DisposedException &) {}
+}
+
+void SfxGlobalEvents_Impl::removeEventListener(
+    css::uno::Reference<css::lang::XEventListener> const & aListener)
+{
+    std::scoped_lock g(m_aLock);
+    auto const i = m_disposeListeners.find(aListener);
+    if (i != m_disposeListeners.end()) {
+        m_disposeListeners.erase(i);
+    }
+}
+
+sal_Bool SAL_CALL SfxGlobalEvents_Impl::has(const uno::Any& aElement)
+{
+    uno::Reference< frame::XModel > xDoc;
+    aElement >>= xDoc;
+
+    bool bHas = false;
+
+    // SAFE ->
+    std::scoped_lock g(m_aLock);
+    if (m_disposed) {
+        throw css::lang::DisposedException();
+    }
+    TModelList::iterator pIt = impl_searchDoc(xDoc);
+    if (pIt != m_lModels.end())
+        bHas = true;
+    // <- SAFE
+
+    return bHas;
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::insert( const uno::Any& aElement )
+{
+    uno::Reference< frame::XModel > xDoc;
+    aElement >>= xDoc;
+    if (!xDoc.is())
+        throw lang::IllegalArgumentException(
+                "Can not locate at least the model parameter.",
+                static_cast< container::XSet* >(this),
+                0);
+
+    // SAFE ->
+    {
+        std::scoped_lock g(m_aLock);
+        if (m_disposed) {
+            throw css::lang::DisposedException();
+        }
+        TModelList::iterator pIt = impl_searchDoc(xDoc);
+        if (pIt != m_lModels.end())
+            throw container::ElementExistException(
+                OUString(),
+                static_cast<container::XSet*>(this));
+        m_lModels.push_back(xDoc);
+    }
+    // <- SAFE
+
+    uno::Reference< document::XDocumentEventBroadcaster > xDocBroadcaster(xDoc, uno::UNO_QUERY );
+    if (xDocBroadcaster.is())
+        xDocBroadcaster->addDocumentEventListener(this);
+    else
+    {
+        // try the "legacy version" of XDocumentEventBroadcaster, which is XEventBroadcaster
+        uno::Reference< document::XEventBroadcaster > xBroadcaster(xDoc, uno::UNO_QUERY);
+        if (xBroadcaster.is())
+            xBroadcaster->addEventListener(static_cast< document::XEventListener* >(this));
+    }
+}
+
+
+void SAL_CALL SfxGlobalEvents_Impl::remove( const uno::Any& aElement )
+{
+    uno::Reference< frame::XModel > xDoc;
+    aElement >>= xDoc;
+    if (!xDoc.is())
+        throw lang::IllegalArgumentException(
+                "Can not locate at least the model parameter.",
+                static_cast< container::XSet* >(this),
+                0);
+
+    // SAFE ->
+    {
+        std::scoped_lock g(m_aLock);
+        TModelList::iterator pIt = impl_searchDoc(xDoc);
+        if (pIt == m_lModels.end())
+            throw container::NoSuchElementException(
+                OUString(),
+                static_cast<container::XSet*>(this));
+        m_lModels.erase(pIt);
+    }
+    // <- SAFE
+
+    uno::Reference< document::XDocumentEventBroadcaster > xDocBroadcaster(xDoc, uno::UNO_QUERY );
+    if (xDocBroadcaster.is())
+        xDocBroadcaster->removeDocumentEventListener(this);
+    else
+    {
+        // try the "legacy version" of XDocumentEventBroadcaster, which is XEventBroadcaster
+        uno::Reference< document::XEventBroadcaster > xBroadcaster(xDoc, uno::UNO_QUERY);
+        if (xBroadcaster.is())
+            xBroadcaster->removeEventListener(static_cast< document::XEventListener* >(this));
+    }
+}
+
+
+uno::Reference< container::XEnumeration > SAL_CALL SfxGlobalEvents_Impl::createEnumeration()
+{
+    // SAFE ->
+    std::scoped_lock g(m_aLock);
+    if (m_disposed) {
+        throw css::lang::DisposedException();
+    }
+    uno::Sequence<uno::Any> models(m_lModels.size());
+    auto modelsRange = asNonConstRange(models);
+    for (size_t i = 0; i < m_lModels.size(); ++i)
+    {
+        modelsRange[i] <<= m_lModels[i];
+    }
+    uno::Reference<container::XEnumeration> xEnum(new ::comphelper::OAnyEnumeration(models));
+    // <- SAFE
+
+    return xEnum;
+}
+
+
+uno::Type SAL_CALL SfxGlobalEvents_Impl::getElementType()
+{
+    return cppu::UnoType<frame::XModel>::get();
+}
+
+
+sal_Bool SAL_CALL SfxGlobalEvents_Impl::hasElements()
+{
+    // SAFE ->
+    std::scoped_lock g(m_aLock);
+    if (m_disposed) {
+        throw css::lang::DisposedException();
+    }
+    return (!m_lModels.empty());
+    // <- SAFE
+}
+
+
+void SfxGlobalEvents_Impl::implts_notifyJobExecution(const document::EventObject& aEvent)
+{
+    css::uno::Reference<css::document::XEventListener> listener;
+    {
+        std::scoped_lock g(m_aLock);
+        listener = m_xJobExecutorListener;
+    }
+    if (!listener.is()) {
+        return;
+    }
+    try
+    {
+        listener->notifyEvent(aEvent);
+    }
+    catch(const uno::RuntimeException&)
+        { throw; }
+    catch(const uno::Exception&)
+        {}
+}
+
+
+void SfxGlobalEvents_Impl::implts_checkAndExecuteEventBindings(const document::DocumentEvent& aEvent)
+{
+    rtl::Reference<GlobalEventConfig> events;
+    {
+        std::scoped_lock g(m_aLock);
+        events = m_xEvents;
+    }
+    if (!events.is()) {
+        return;
+    }
+    try
+    {
+        if ( events->hasByName( aEvent.EventName ) )
+        {
+            uno::Sequence < beans::PropertyValue > aAny = events->getByName2(aEvent.EventName);
+            SfxEvents_Impl::Execute(aAny, aEvent, nullptr);
+        }
+    }
+    catch ( uno::RuntimeException const & )
+    {
+        throw;
+    }
+    catch ( uno::Exception const & )
+    {
+       DBG_UNHANDLED_EXCEPTION("sfx.notify");
+    }
+}
+
+
+void SfxGlobalEvents_Impl::implts_notifyListener(const document::DocumentEvent& aEvent)
+{
+    std::unique_lock g(m_aLock);
+
+    document::EventObject aLegacyEvent(aEvent.Source, aEvent.EventName);
+    m_aLegacyListeners.forEach(g,
+        [&aLegacyEvent](const css::uno::Reference<document::XEventListener>& xListener)
+        {
+            xListener->notifyEvent(aLegacyEvent);
+        }
+    );
+    m_aDocumentListeners.forEach(g,
+        [&aEvent](const css::uno::Reference<document::XDocumentEventListener>& xListener)
+        {
+            xListener->documentEventOccured(aEvent);
+        }
+    );
+}
+
+
+// not threadsafe ... must be locked from outside!
+TModelList::iterator SfxGlobalEvents_Impl::impl_searchDoc(const uno::Reference< frame::XModel >& xModel)
+{
+    if (!xModel.is())
+        return m_lModels.end();
+
+    return std::find_if(m_lModels.begin(), m_lModels.end(),
+        [&xModel](const uno::Reference< frame::XModel >& rxModel) {
+            return rxModel == xModel;
+        });
+}
+
+} // namespace
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_sfx2_GlobalEventBroadcaster_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SfxGlobalEvents_Impl(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */