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, 217 insertions, 0 deletions

diff --git a/forms/source/inc/formnavigation.hxx b/forms/source/inc/formnavigation.hxx
new file mode 100644
index 000000000..e18b99a1b
--- /dev/null
+++ b/forms/source/inc/formnavigation.hxx
@@ -0,0 +1,217 @@
+/* -*- 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 <com/sun/star/frame/XDispatchProviderInterception.hpp>
+#include <com/sun/star/frame/XStatusListener.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <cppuhelper/implbase2.hxx>
+#include "featuredispatcher.hxx"
+#include <vector>
+#include <map>
+#include <memory>
+
+
+namespace frm
+{
+
+
+    class UrlTransformer;
+    class ControlFeatureInterception;
+
+
+    //= OFormNavigationHelper
+
+    typedef ::cppu::ImplHelper2 <   css::frame::XDispatchProviderInterception
+                                ,   css::frame::XStatusListener
+                                >   OFormNavigationHelper_Base;
+
+    class OFormNavigationHelper
+                        :public OFormNavigationHelper_Base
+                        ,public IFeatureDispatcher
+    {
+    private:
+        struct FeatureInfo
+        {
+            css::util::URL                                             aURL;
+            css::uno::Reference< css::frame::XDispatch >               xDispatcher;
+            bool                                                       bCachedState;
+            css::uno::Any                                              aCachedAdditionalState;
+
+            FeatureInfo() : bCachedState( false ) { }
+        };
+        typedef ::std::map< sal_Int16, FeatureInfo >    FeatureMap;
+
+    private:
+        css::uno::Reference< css::uno::XComponentContext >
+                            m_xORB;
+        ::std::unique_ptr< ControlFeatureInterception >
+                            m_pFeatureInterception;
+
+        // all supported features
+        FeatureMap          m_aSupportedFeatures;
+        // all features which we have an external dispatcher for
+        sal_Int32           m_nConnectedFeatures;
+
+    protected:
+        OFormNavigationHelper( const css::uno::Reference< css::uno::XComponentContext >& _rxORB );
+        virtual ~OFormNavigationHelper();
+
+        // XComponent
+        /// @throws css::uno::RuntimeException
+        void dispose(  );
+
+        // XDispatchProviderInterception
+        virtual void SAL_CALL registerDispatchProviderInterceptor( const css::uno::Reference< css::frame::XDispatchProviderInterceptor >& Interceptor ) override;
+        virtual void SAL_CALL releaseDispatchProviderInterceptor( const css::uno::Reference< css::frame::XDispatchProviderInterceptor >& Interceptor ) override;
+
+        // XStatusListener
+        virtual void SAL_CALL statusChanged( const css::frame::FeatureStateEvent& State ) override;
+
+        // XEventListener
+        virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+        // IFeatureDispatcher
+        virtual void            dispatch( sal_Int16 _nFeatureId ) const override;
+        virtual void            dispatchWithArgument( sal_Int16 _nFeatureId, const char* _pParamName, const css::uno::Any& _rParamValue ) const override;
+        virtual bool            isEnabled( sal_Int16 _nFeatureId ) const override;
+        virtual bool            getBooleanState( sal_Int16 _nFeatureId ) const override;
+        virtual OUString getStringState( sal_Int16 _nFeatureId ) const override;
+        virtual sal_Int32       getIntegerState( sal_Int16 _nFeatureId ) const override;
+
+        // own overridables
+        /** is called when the interceptors have.
+            <p>The default implementations simply calls <member>updateDispatches</member>,
+            derived classes can prevent this in certain cases, or do additional handling.</p>
+        */
+        virtual void    interceptorsChanged( );
+
+        /** called when the status of a feature changed
+
+            <p>The default implementation does nothing.</p>
+
+            <p>If the feature in question does support more state information that just the
+            enabled/disabled state, then this additional information is to be retrieved in
+            a separate call.</p>
+
+            @param _nFeatureId
+                the id of the feature
+            @param _bEnabled
+                determines if the features is enabled or disabled
+            @see getBooleanState
+        */
+        virtual void    featureStateChanged( sal_Int16 _nFeatureId, bool _bEnabled );
+
+        /** notification for (potential) changes in the state of all features
+            <p>The base class implementation does nothing. Derived classes could force
+            their peer to update it's state, depending on the result of calls to
+            <member>IFeatureDispatcher::isEnabled</member>.</p>
+        */
+        virtual void    allFeatureStatesChanged( );
+
+        /** retrieves the list of supported features
+            <p>To be overridden by derived classes</p>
+            @param _rFeatureIds
+                the array of features to support. Out parameter to fill by the derivee's implementation
+            @pure
+        */
+        virtual void    getSupportedFeatures( ::std::vector< sal_Int16 >& /* [out] */ _rFeatureIds ) = 0;
+
+    protected:
+        /** update all our dispatches which are controlled by our dispatch interceptors
+        */
+        void    updateDispatches();
+
+        /** connect to the dispatch interceptors
+        */
+        void    connectDispatchers();
+
+        /** disconnect from the dispatch interceptors
+        */
+        void    disconnectDispatchers();
+
+        /** queries the interceptor chain for a dispatcher for the given URL
+        */
+        css::uno::Reference< css::frame::XDispatch >
+                queryDispatch( const css::util::URL& _rURL );
+
+        /** invalidates the set of supported features
+
+            <p>This will invalidate all structures which are tied to the set of supported
+            features. All dispatches will be disconnected.<br/>
+            No automatic re-connection to potential external dispatchers is done, instead,
+            you have to call updateDispatches explicitly, if necessary.</p>
+        */
+        void    invalidateSupportedFeaturesSet();
+
+    private:
+        /** initialize m_aSupportedFeatures, if necessary
+        */
+        void    initializeSupportedFeatures();
+    };
+
+    /** helper class mapping between feature ids and feature URLs
+    */
+    class OFormNavigationMapper
+    {
+    private:
+        ::std::unique_ptr< UrlTransformer >   m_pUrlTransformer;
+
+    public:
+        OFormNavigationMapper(
+            const css::uno::Reference< css::uno::XComponentContext >& _rxORB
+        );
+        ~OFormNavigationMapper( );
+
+        /** retrieves the ASCII representation of a feature URL belonging to an id
+
+            @complexity O(log n)
+            @return NULL if the given id is not a known feature id (which is a valid usage)
+        */
+        static const char* getFeatureURLAscii( sal_Int16 _nFeatureId );
+
+        /** retrieves the feature URL belonging to a feature id
+
+            @complexity O(log n), with n being the number of all potentially known URLs
+            @return
+                <TRUE/> if and only if the given id is a known feature id
+                (which is a valid usage)
+        */
+        bool        getFeatureURL( sal_Int16 _nFeatureId, css::util::URL& /* [out] */ _rURL );
+
+        /** retrieves the feature id belonging to a feature URL
+
+            @complexity O(n), with n being the number of all potentially known URLs
+            @return
+                the id of the feature URL, or -1 if the URl is not known
+                (which is a valid usage)
+        */
+        static sal_Int16 getFeatureId( std::u16string_view _rCompleteURL );
+
+    private:
+        OFormNavigationMapper( const OFormNavigationMapper& ) = delete;
+        OFormNavigationMapper& operator=( const OFormNavigationMapper& ) = delete;
+    };
+
+
+}   // namespace frm
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */