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, 329 insertions, 0 deletions

diff --git a/sfx2/inc/preventduplicateinteraction.hxx b/sfx2/inc/preventduplicateinteraction.hxx
new file mode 100644
index 000000000..62e59dd96
--- /dev/null
+++ b/sfx2/inc/preventduplicateinteraction.hxx
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+/* -*- 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_FRAMEWORK_PREVENTDUPLICATEINTERACTION_HXX
+#define INCLUDED_FRAMEWORK_PREVENTDUPLICATEINTERACTION_HXX
+
+#include <vector>
+
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/frame/TerminationVetoException.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/task/XInteractionHandler2.hpp>
+#include <com/sun/star/task/XInteractionRequest.hpp>
+
+#include <comphelper/compbase.hxx>
+#include <cppuhelper/implbase.hxx>
+
+#include <toolkit/helper/vclunohelper.hxx>
+#include <vcl/wrkwin.hxx>
+#include <vcl/svapp.hxx>
+#include <mutex>
+
+namespace com::sun::star::uno {
+    class XComponentContext;
+}
+
+namespace sfx2 {
+
+inline void closedialogs(SystemWindow& rTopLevel, bool bCloseRoot)
+{
+    for (vcl::Window *pChild = rTopLevel.GetWindow(GetWindowType::FirstTopWindowChild); pChild; pChild = rTopLevel.GetWindow(GetWindowType::NextTopWindowSibling))
+        closedialogs(dynamic_cast<SystemWindow&>(*pChild), true);
+    if (bCloseRoot)
+        rTopLevel.Close();
+}
+
+// This is intended to be the parent for any warning dialogs launched
+// during the load of a document so that those dialogs are modal to
+// this window and don't block any existing windows.
+//
+// If there are dialog children open on exit then veto termination,
+// close the topmost dialog and retry termination.
+class WarningDialogsParent final :
+    public comphelper::WeakComponentImplHelper<css::frame::XTerminateListener>
+{
+private:
+    VclPtr<WorkWindow> m_xWin;
+    css::uno::Reference<css::awt::XWindow> m_xInterface;
+
+private:
+
+    DECL_STATIC_LINK(WarningDialogsParent, TerminateDesktop, void*, void);
+
+    void closewarningdialogs()
+    {
+        if (!m_xWin)
+            return;
+        SolarMutexGuard aSolarGuard;
+        closedialogs(dynamic_cast<SystemWindow&>(*m_xWin), false);
+    }
+
+public:
+
+    using comphelper::WeakComponentImplHelperBase::disposing;
+    virtual void SAL_CALL disposing(const css::lang::EventObject&) override
+    {
+    }
+
+    // XTerminateListener
+    virtual void SAL_CALL queryTermination(const css::lang::EventObject&) override
+    {
+        closewarningdialogs();
+        Application::PostUserEvent(LINK(this, WarningDialogsParent, TerminateDesktop));
+        throw css::frame::TerminationVetoException();
+    }
+
+    virtual void SAL_CALL notifyTermination(const css::lang::EventObject&) override
+    {
+    }
+
+public:
+    WarningDialogsParent()
+    {
+        SolarMutexGuard aSolarGuard;
+        m_xWin = VclPtr<WorkWindow>::Create(nullptr, WB_STDWORK);
+        m_xWin->SetText("dialog parent for warning dialogs during load");
+        m_xInterface = VCLUnoHelper::GetInterface(m_xWin);
+    }
+
+    virtual ~WarningDialogsParent() override
+    {
+        closewarningdialogs();
+        m_xWin.disposeAndClear();
+    }
+
+    const css::uno::Reference<css::awt::XWindow>& GetDialogParent() const
+    {
+        return m_xInterface;
+    }
+};
+
+class WarningDialogsParentScope
+{
+private:
+    css::uno::Reference<css::frame::XDesktop> m_xDesktop;
+    rtl::Reference<WarningDialogsParent> m_xListener;
+
+public:
+    WarningDialogsParentScope(const css::uno::Reference<css::uno::XComponentContext>& rContext)
+        : m_xDesktop(css::frame::Desktop::create(rContext), css::uno::UNO_QUERY_THROW)
+        , m_xListener(new WarningDialogsParent)
+    {
+        m_xDesktop->addTerminateListener(m_xListener);
+    }
+
+    const css::uno::Reference<css::awt::XWindow>& GetDialogParent() const
+    {
+        return m_xListener->GetDialogParent();
+    }
+
+    ~WarningDialogsParentScope()
+    {
+        m_xDesktop->removeTerminateListener(m_xListener);
+    }
+};
+
+/**
+    @short      Prevent us from showing the same interaction more than once during
+                the same transaction.
+
+    @descr      Every interaction provided to this helper will be safed ... handled by the internal
+                used UUIInteractionHandler (!) and never be handled a second time!
+
+                On the other side there exists some interactions, which allow a retry.
+                So this helper allow to set a list of interactions combined with a retry value.
+ */
+class PreventDuplicateInteraction final :
+                                  public ::cppu::WeakImplHelper<css::lang::XInitialization, css::task::XInteractionHandler2>
+{
+    mutable std::mutex m_aLock;
+
+    // structs, types etc.
+    public:
+
+        struct InteractionInfo
+        {
+            public:
+                /// describe the interaction.
+                css::uno::Type m_aInteraction;
+                /// after max count was reached this interaction will be blocked.
+                sal_Int32 m_nMaxCount;
+                /// count how often this interaction was called.
+                sal_Int32 m_nCallCount;
+                /** hold the last intercepted request (matching the set interaction type) alive
+                so it can be used for further checks */
+                css::uno::Reference< css::task::XInteractionRequest > m_xRequest;
+
+            public:
+
+                InteractionInfo(const css::uno::Type& aInteraction)
+                    : m_aInteraction(aInteraction)
+                    , m_nMaxCount   (1   )
+                    , m_nCallCount  (0           )
+                {}
+        };
+
+    // member
+    private:
+
+        /// Used to create needed uno services at runtime.
+        css::uno::Reference< css::uno::XComponentContext > m_xContext;
+
+        /** The outside interaction handler, which is used to handle every incoming interaction,
+            if it's not blocked. */
+        css::uno::Reference< css::task::XInteractionHandler > m_xHandler;
+
+        std::unique_ptr<WarningDialogsParentScope> m_xWarningDialogsParent;
+
+        /** This list describe which and how incoming interactions must be handled.
+            Further it contains all collected information after this interaction
+            object was used.*/
+        std::vector< InteractionInfo > m_lInteractionRules;
+
+
+    // uno interface
+    public:
+
+        virtual void SAL_CALL initialize(const css::uno::Sequence<css::uno::Any>& rArguments) override;
+
+        /**
+            @interface  XInteractionHandler
+            @short      called from outside to handle a problem
+            @descr      We filter the incoming interactions. some of them
+                        will be forwarded to the generic UI interaction handler.
+                        So we must not implement it twice. Some other ones
+                        will be aborted only.
+
+            @threadsafe yes
+        */
+        virtual void SAL_CALL handle(const css::uno::Reference< css::task::XInteractionRequest >& xRequest) override;
+
+
+        /**
+            @interface  XInteractionHandler2
+            @short      called from outside to handle a problem
+            @descr      We filter the incoming interactions. some of them
+                        will be forwarded to the generic UI interaction handler.
+                        So we must not implement it twice. Some other ones
+                        will be aborted only.
+
+            @threadsafe yes
+        */
+        virtual sal_Bool SAL_CALL handleInteractionRequest( const css::uno::Reference< css::task::XInteractionRequest >& xRequest ) override;
+
+
+        /**
+            @interface  XInterface
+            @short      called to query another interface of the component
+            @descr      Will allow to query for XInteractionHandler2 if and only if m_xHandler supports this interface, too.
+
+            @threadsafe yes
+        */
+        virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type& aType ) override;
+
+    // c++ interface
+    public:
+
+
+        /**
+            @short      ctor to guarantee right initialized instances of this class
+            @descr      It uses the given uno service manager to create the global
+                        generic UI interaction handler for later internal using.
+
+            @param      xSMGR
+                            uno service manager for creating services internally
+
+            @threadsafe not necessary
+        */
+        PreventDuplicateInteraction(const css::uno::Reference< css::uno::XComponentContext >& rxContext);
+
+
+        /**
+            @short      dtor to free used memory.
+         */
+        virtual ~PreventDuplicateInteraction() override;
+
+
+        /**
+            @short      set the outside interaction handler, which must be used internally
+                        if the interaction will not be blocked by the set list of rules.
+
+            @note       This overwrites the settings of e.g. useDefaultUUIHandler()!
+
+            @param      xHandler
+                        the new interaction handler
+         */
+        void setHandler(const css::uno::Reference< css::task::XInteractionHandler >& xHandler);
+
+
+        /**
+            @short      instead of setting an outside interaction handler, this method
+                        make sure the default UUI interaction handler of the office is used.
+
+            @note       This overwrites the settings of e.g. setHandler()!
+         */
+        void useDefaultUUIHandler();
+
+
+        /**
+            @short      add a new interaction to the list of interactions, which
+                        must be handled by this helper.
+
+            @descr      This method must be called immediately after a new instance of this helper was
+                        created. Without such list of InteractionRules, this instances does nothing!
+                        On the other side there is no possibility to remove rules.
+                        So the same instance can't be used within different transactions.
+                        It's a OneWay-object .-)
+
+            @param      aInteractionInfo
+                        describe the type of interaction, hos often it can be called etcpp.
+
+            @threadsafe yes
+        */
+        void addInteractionRule(const PreventDuplicateInteraction::InteractionInfo& aInteractionInfo);
+
+
+        /**
+            @short      return the info struct for the specified interaction.
+
+            @param      aInteraction
+                        specify the interaction.
+
+            @param      pReturn
+                        provides information about:
+                        - the count how often this interaction was handled during the
+                          lifetime of this helper.
+                        - the interaction itself, so it can be analyzed further
+
+            @return     [boolean]
+                        true if the queried interaction could be found.
+                        false otherwise.
+
+            @threadsafe yes
+        */
+        bool getInteractionInfo(const css::uno::Type&                               aInteraction,
+                                                  PreventDuplicateInteraction::InteractionInfo* pReturn     ) const;
+};
+
+} // namespace sfx2
+
+#endif // INCLUDED_FRAMEWORK_PREVENTDUPLICATEINTERACTION_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */