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, 228 insertions, 0 deletions

diff --git a/include/vbahelper/vbaeventshelperbase.hxx b/include/vbahelper/vbaeventshelperbase.hxx
new file mode 100644
index 000000000..0126db442
--- /dev/null
+++ b/include/vbahelper/vbaeventshelperbase.hxx
@@ -0,0 +1,228 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_VBAHELPER_VBAEVENTSHELPERBASE_HXX
+#define INCLUDED_VBAHELPER_VBAEVENTSHELPERBASE_HXX
+
+#include <deque>
+#include <map>
+#include <unordered_map>
+
+#include <com/sun/star/document/XEventListener.hpp>
+#include <com/sun/star/lang/EventObject.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/script/vba/XVBAEventProcessor.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/util/XChangesListener.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <vbahelper/vbadllapi.h>
+
+namespace com::sun::star {
+    namespace document { struct EventObject; }
+    namespace frame { class XModel; }
+    namespace script::vba { class XVBAModuleInfo; }
+    namespace uno { class XComponentContext; }
+    namespace util { struct ChangesEvent; }
+}
+
+class SfxObjectShell;
+
+typedef ::cppu::WeakImplHelper<
+    css::script::vba::XVBAEventProcessor,
+    css::document::XEventListener,
+    css::util::XChangesListener,
+    css::lang::XServiceInfo > VbaEventsHelperBase_BASE;
+
+class VBAHELPER_DLLPUBLIC VbaEventsHelperBase : public VbaEventsHelperBase_BASE
+{
+public:
+    VbaEventsHelperBase(
+        const css::uno::Sequence< css::uno::Any >& rArgs );
+    virtual ~VbaEventsHelperBase() override;
+
+    // script::vba::XVBAEventProcessor
+    virtual sal_Bool SAL_CALL hasVbaEventHandler( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs ) override;
+    virtual sal_Bool SAL_CALL processVbaEvent( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs ) override;
+
+    // document::XEventListener
+    virtual void SAL_CALL notifyEvent( const css::document::EventObject& rEvent ) override;
+
+    // util::XChangesListener
+    virtual void SAL_CALL changesOccurred( const css::util::ChangesEvent& rEvent ) override;
+
+    // lang::XEventListener
+    virtual void SAL_CALL disposing( const css::lang::EventObject& rEvent ) override;
+
+    sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override;
+
+    // little helpers ---------------------------------------------------------
+
+    /** Helper to execute event handlers without throwing any exceptions. */
+    void processVbaEventNoThrow( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs );
+
+    /** @throws css::lang::IllegalArgumentException if the passed sequence does not contain a value at the specified index. */
+    static void checkArgument( const css::uno::Sequence< css::uno::Any >& rArgs, sal_Int32 nIndex )
+        { if( (nIndex < 0) || (nIndex >= rArgs.getLength()) ) throw css::lang::IllegalArgumentException(); }
+
+    /** @throws css::lang::IllegalArgumentException if the passed sequence does not contain a value of a specific at the specified index. */
+    template< typename Type >
+    static void checkArgumentType( const css::uno::Sequence< css::uno::Any >& rArgs, sal_Int32 nIndex )
+        { checkArgument( rArgs, nIndex ); if( !rArgs[ nIndex ].has< Type >() ) throw css::lang::IllegalArgumentException(); }
+
+protected:
+
+
+    struct EventHandlerInfo
+    {
+        sal_Int32 mnEventId;
+        sal_Int32 mnModuleType;
+        OUString maMacroName;
+        sal_Int32 mnCancelIndex;
+        css::uno::Any maUserData;
+    };
+
+    /** Registers a supported event handler.
+
+        @param nEventId  Event identifier from com.sun.star.script.vba.VBAEventId.
+        @param nModuleType  Type of the module containing the event handler.
+        @param pcMacroName  Name of the associated VBA event handler macro.
+        @param nCancelIndex  0-based index of Cancel parameter, or -1.
+        @param rUserData  User data for free usage in derived implementations. */
+    void registerEventHandler(
+            sal_Int32 nEventId,
+            sal_Int32 nModuleType,
+            const char* pcMacroName,
+            sal_Int32 nCancelIndex = -1,
+            const css::uno::Any& rUserData = css::uno::Any() );
+
+
+    struct EventQueueEntry
+    {
+        sal_Int32 mnEventId;
+        css::uno::Sequence< css::uno::Any > maArgs;
+        /*implicit*/ EventQueueEntry( sal_Int32 nEventId ) : mnEventId( nEventId ) {}
+        EventQueueEntry( sal_Int32 nEventId, const css::uno::Sequence< css::uno::Any >& rArgs ) : mnEventId( nEventId ), maArgs( rArgs ) {}
+    };
+    typedef ::std::deque< EventQueueEntry > EventQueue;
+
+    /** Derived classes do additional preparations and return whether the
+        event handler has to be called.
+
+        @throws css::uno::RuntimeException
+    */
+    virtual bool implPrepareEvent(
+        EventQueue& rEventQueue,
+        const EventHandlerInfo& rInfo,
+        const css::uno::Sequence< css::uno::Any >& rArgs ) = 0;
+
+    /** Derived classes have to return the argument list for the specified VBA event handler.
+
+        @throws css::lang::IllegalArgumentException
+        @throws css::uno::RuntimeException
+    */
+    virtual css::uno::Sequence< css::uno::Any > implBuildArgumentList(
+        const EventHandlerInfo& rInfo,
+        const css::uno::Sequence< css::uno::Any >& rArgs ) = 0;
+
+    /** Derived classes may do additional postprocessing. Called even if the
+        event handler does not exist, or if an error occurred during execution.
+
+        @throws css::uno::RuntimeException
+    */
+    virtual void implPostProcessEvent(
+        EventQueue& rEventQueue,
+        const EventHandlerInfo& rInfo,
+        bool bCancel ) = 0;
+
+    /** Derived classes have to return the name of the Basic document module.
+
+        @throws css::lang::IllegalArgumentException
+        @throws css::uno::RuntimeException
+    */
+    virtual OUString implGetDocumentModuleName(
+        const EventHandlerInfo& rInfo,
+        const css::uno::Sequence< css::uno::Any >& rArgs ) const = 0;
+
+private:
+    typedef ::std::map< sal_Int32, OUString > ModulePathMap;
+
+    /** Starts listening at the document model. */
+    void startListening();
+    /** Stops listening at the document model. */
+    void stopListening();
+
+    /** Returns the event handler info struct for the specified event, or throws.
+
+
+        @throws css::lang::IllegalArgumentException
+    */
+    const EventHandlerInfo& getEventHandlerInfo( sal_Int32 nEventId ) const;
+
+    /** Searches the event handler in the document and returns its full script path.
+
+
+        @throws css::lang::IllegalArgumentException
+        @throws css::uno::RuntimeException
+    */
+    OUString getEventHandlerPath(
+        const EventHandlerInfo& rInfo,
+        const css::uno::Sequence< css::uno::Any >& rArgs );
+
+    /** On first call, accesses the Basic library containing the VBA source code.
+
+        @throws css::uno::RuntimeException
+    */
+    void ensureVBALibrary();
+
+    /** Returns the type of the Basic module with the specified name.
+
+        @throws css::uno::RuntimeException
+    */
+    sal_Int32 getModuleType( const OUString& rModuleName );
+
+    /** Updates the map containing paths to event handlers for a Basic module.
+
+        @throws css::uno::RuntimeException
+    */
+    ModulePathMap& updateModulePathMap( const OUString& rModuleName );
+
+protected:
+    css::uno::Reference< css::frame::XModel > mxModel;
+    SfxObjectShell* mpShell;
+
+private:
+    typedef std::map< sal_Int32, EventHandlerInfo > EventHandlerInfoMap;
+    typedef std::unordered_map< OUString, ModulePathMap > EventHandlerPathMap;
+
+    EventHandlerInfoMap maEventInfos;
+    EventHandlerPathMap maEventPaths;
+    css::uno::Reference< css::script::vba::XVBAModuleInfo > mxModuleInfos;
+    OUString maLibraryName;
+    bool mbDisposed;
+};
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */