Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

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

1 files changed, 341 insertions, 0 deletions

diff --git a/include/editeng/AccessibleContextBase.hxx b/include/editeng/AccessibleContextBase.hxx
new file mode 100644
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+++ b/include/editeng/AccessibleContextBase.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_EDITENG_ACCESSIBLECONTEXTBASE_HXX
+#define INCLUDED_EDITENG_ACCESSIBLECONTEXTBASE_HXX
+
+#include <com/sun/star/accessibility/XAccessible.hpp>
+#include <com/sun/star/accessibility/XAccessibleContext.hpp>
+#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <osl/mutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <editeng/editengdllapi.h>
+
+namespace com::sun::star::accessibility { class XAccessibleStateSet; }
+namespace com::sun::star::accessibility { class XAccessibleRelationSet; }
+namespace com::sun::star::accessibility { struct AccessibleEventObject; }
+
+namespace accessibility {
+
+struct MutexOwner {mutable ::osl::Mutex maMutex;};
+
+/** @descr
+        This base class provides an implementation of the
+        AccessibleContext service. Apart from the
+        <type>XXAccessible<type> and XAccessibleContextContext
+        interfaces it supports the XServiceInfo interface.
+*/
+class EDITENG_DLLPUBLIC AccessibleContextBase
+    :   public MutexOwner,
+        public cppu::WeakComponentImplHelper<
+        css::accessibility::XAccessible,
+        css::accessibility::XAccessibleContext,
+        css::accessibility::XAccessibleEventBroadcaster,
+        css::lang::XServiceInfo
+        >
+{
+public:
+
+    //=====  internal  ========================================================
+
+    /** The origin of the accessible name or description.
+    */
+    enum StringOrigin {
+        ManuallySet,
+        FromShape,
+        AutomaticallyCreated,
+        NotSet
+    };
+
+    AccessibleContextBase (
+        const css::uno::Reference< css::accessibility::XAccessible>& rxParent,
+        const sal_Int16 aRole);
+    virtual ~AccessibleContextBase() override;
+
+
+    /** Call all accessibility event listeners to inform them about the
+        specified event.
+        @param aEventId
+            Id of the event type.
+        @param rNewValue
+            New value of the modified attribute.  Pass empty structure if
+            not applicable.
+        @param rOldValue
+            Old value of the modified attribute.  Pass empty structure if
+            not applicable.
+    */
+    void CommitChange (sal_Int16 aEventId,
+        const css::uno::Any& rNewValue,
+        const css::uno::Any& rOldValue);
+
+    /** Set a new description and, provided that the new name differs from
+        the old one, broadcast an accessibility event.
+        @param rsDescription
+            The new description.
+        @param eDescriptionOrigin
+            The origin of the description.  This is used to determine
+            whether the given description overrules the existing one.  An
+            origin with a lower numerical value overrides one with a higher
+            value.
+        @throws css::uno::RuntimeException
+    */
+    void SetAccessibleDescription (
+        const OUString& rsDescription,
+        StringOrigin eDescriptionOrigin);
+
+    /** Set a new description and, provided that the new name differs from
+        the old one, broadcast an accessibility event.
+        @param rsName
+            The new name.
+        @param eNameOrigin
+            The origin of the name.  This is used to determine whether the
+            given name overrules the existing one.  An origin with a lower
+            numerical value overrides one with a higher value.
+        @throws css::uno::RuntimeException
+    */
+    void SetAccessibleName (
+        const OUString& rsName,
+        StringOrigin eNameOrigin);
+
+    /** Set the specified state (turn it on) and send events to all
+        listeners to inform them of the change.
+
+        @param aState
+            The state to turn on.
+
+        @return
+            If the specified state changed its value due to this call
+            <TRUE/> is returned, otherwise <FALSE/>.
+    */
+    virtual bool SetState (sal_Int16 aState);
+
+    /** Reset the specified state (turn it off) and send events to all
+        listeners to inform them of the change.
+
+        @param aState
+            The state to turn off.
+
+        @return
+            If the specified state changed its value due to this call
+            <TRUE/> is returned, otherwise <FALSE/>.
+    */
+    virtual bool ResetState (sal_Int16 aState);
+
+    /** Return the state of the specified state.
+
+        @param aState
+            The state for which to return its value.
+
+        @return
+            A value of <TRUE/> indicates that the state is set.  A <FALSE/>
+            value indicates an unset state.
+    */
+    bool GetState (sal_Int16 aState);
+
+    /** Replace the current relation set with the specified one.  Send
+        events for relations that are not in both sets.
+
+        @param rRelationSet
+            The new relation set that replaces the old one.
+
+        @throws css::uno::RuntimeException
+    */
+    void SetRelationSet (
+        const css::uno::Reference< css::accessibility::XAccessibleRelationSet>& rxRelationSet);
+
+
+    //=====  XAccessible  =====================================================
+
+    /// Return the XAccessibleContext.
+    virtual css::uno::Reference< css::accessibility::XAccessibleContext> SAL_CALL
+        getAccessibleContext() override;
+
+
+    //=====  XAccessibleContext  ==============================================
+
+    /// Return the number of currently visible children.
+    virtual sal_Int32 SAL_CALL
+        getAccessibleChildCount() override;
+
+    /// Return the specified child or throw exception.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleChild (sal_Int32 nIndex) override;
+
+    /// Return a reference to the parent.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleParent() override;
+
+    /// Return this objects index among the parents children.
+    virtual sal_Int32 SAL_CALL
+        getAccessibleIndexInParent() override;
+
+    /// Return this object's role.
+    virtual sal_Int16 SAL_CALL
+        getAccessibleRole() override;
+
+    /// Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    /// Return the object's current name.
+    virtual OUString SAL_CALL
+        getAccessibleName() override;
+
+    /// Return NULL to indicate that an empty relation set.
+    virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet> SAL_CALL
+        getAccessibleRelationSet() override;
+
+    /// Return the set of current states.
+    virtual css::uno::Reference< css::accessibility::XAccessibleStateSet> SAL_CALL
+        getAccessibleStateSet() override;
+
+    /** Return the parents locale or throw exception if this object has no
+        parent yet/anymore.
+    */
+    virtual css::lang::Locale SAL_CALL
+        getLocale() override;
+
+    //=====  XAccessibleEventBroadcaster  ========================================
+
+    virtual void SAL_CALL
+        addAccessibleEventListener (
+            const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener) override;
+
+    virtual void SAL_CALL
+        removeAccessibleEventListener (
+            const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener) override;
+
+
+    //=====  XServiceInfo  ====================================================
+
+    /** Returns an identifier for the implementation of this object.
+    */
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    /** Return whether the specified service is supported by this class.
+    */
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    /** Returns a list of all supported services.  In this case that is just
+        the AccessibleContext service.
+    */
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+
+    //=====  XTypeProvider  ===================================================
+
+    /** Returns an implementation id.
+    */
+    virtual css::uno::Sequence<sal_Int8> SAL_CALL
+        getImplementationId() override;
+
+    /** Check whether or not the object has been disposed (or is in the
+        state of being disposed).
+
+        @return TRUE, if the object is disposed or in the course
+        of being disposed. Otherwise, FALSE is returned.
+    */
+    bool IsDisposed() const;
+
+protected:
+    /** The state set.
+    */
+    css::uno::Reference< css::accessibility::XAccessibleStateSet> mxStateSet;
+
+    /** The relation set.  Relations can be set or removed by calling the
+        <member>AddRelation</member> and <member>RemoveRelation</member> methods.
+    */
+    css::uno::Reference< css::accessibility::XAccessibleRelationSet> mxRelationSet;
+
+    // This method is called from the component helper base class while disposing.
+    virtual void SAL_CALL disposing() override;
+
+    /** Create the accessible object's name.  This method may be called more
+        than once for a single object.
+        @return
+            The returned string is a unique (among the accessible object's
+            siblings) name.
+        @throws css::uno::RuntimeException
+    */
+    virtual OUString CreateAccessibleName();
+
+    void FireEvent (const css::accessibility::AccessibleEventObject& aEvent);
+
+    /** Check whether or not the object has been disposed (or is in the
+        state of being disposed).  If that is the case then
+        DisposedException is thrown to inform the (indirect) caller of the
+        foul deed.
+        @throws css::lang::DisposedException
+    */
+    void ThrowIfDisposed();
+
+    /** sets the role as returned by XaccessibleContext::getAccessibleRole
+
+        <p>Caution: This is only to be used in the construction phase (means within
+        the ctor or late ctor), <em>never</em> when the object is still alive and part
+        of an Accessibility hierarchy.</p>
+    */
+    void SetAccessibleRole( sal_Int16 _nRole );
+
+private:
+    /// Reference to the parent object.
+    css::uno::Reference< css::accessibility::XAccessible> mxParent;
+
+    /** Description of this object.  This is not a constant because it can
+        be set from the outside.  Furthermore, it changes according to the
+        draw page's display mode.
+    */
+    OUString msDescription;
+
+    /** The origin of the description is used to determine whether new
+        descriptions given to the SetAccessibleDescription is ignored or
+        whether that replaces the old value in msDescription.
+    */
+    StringOrigin meDescriptionOrigin;
+
+    /** Name of this object.  It changes according the draw page's
+        display mode.
+    */
+    OUString msName;
+
+    /** The origin of the name is used to determine whether new
+        name given to the SetAccessibleName is ignored or
+        whether that replaces the old value in msName.
+    */
+    StringOrigin meNameOrigin;
+
+    /** client id in the AccessibleEventNotifier queue
+    */
+    sal_uInt32 mnClientId;
+
+    /** This is the role of this object.
+    */
+    sal_Int16 maRole;
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */