valueimp.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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 <tools/color.hxx>
#include <vcl/image.hxx>
#include <cppuhelper/implbase.hxx>
#include <comphelper/compbase.hxx>
#include <com/sun/star/accessibility/XAccessible.hpp>
#include <com/sun/star/accessibility/XAccessibleContext.hpp>
#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
 
#include <mutex>
#include <vector>
 
#define VALUESET_ITEM_NONEITEM      0xFFFE
 
enum ValueSetItemType
{
    VALUESETITEM_NONE,
    VALUESETITEM_IMAGE,
    VALUESETITEM_IMAGE_AND_TEXT,
    VALUESETITEM_COLOR,
    VALUESETITEM_USERDRAW
};
 
class ValueItemAcc;
class ValueSet;
 
struct ValueSetItem
{
    ValueSet&        mrParent;
    OUString            maText;
    void*               mpData;
    rtl::Reference< ValueItemAcc > mxAcc;
    Image               maImage;
    Color               maColor;
    sal_uInt16          mnId;
    sal_uInt8           meType;
    bool                mbVisible;
 
    explicit ValueSetItem( ValueSet& rParent );
    ~ValueSetItem();
 
    css::uno::Reference< css::accessibility::XAccessible >
                        GetAccessible( bool bIsTransientChildrenDisabled );
};
 
typedef comphelper::WeakComponentImplHelper<
    css::accessibility::XAccessible,
    css::accessibility::XAccessibleEventBroadcaster,
    css::accessibility::XAccessibleContext,
    css::accessibility::XAccessibleComponent,
    css::accessibility::XAccessibleSelection >
    ValueSetAccComponentBase;
 
class ValueSetAcc final : public ValueSetAccComponentBase
{
public:
 
    explicit ValueSetAcc(ValueSet* pParent);
    virtual ~ValueSetAcc() override;
 
    void                FireAccessibleEvent( short nEventId, const css::uno::Any& rOldValue, const css::uno::Any& rNewValue );
    bool                HasAccessibleListeners() const { return( mxEventListeners.size() > 0 ); }
 
    static ValueSetAcc* getImplementation( const css::uno::Reference< css::uno::XInterface >& rxData ) noexcept;
 
public:
 
    void GetFocus();
 
    void LoseFocus();
 
    // XAccessible
    virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) 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;
 
    // XAccessibleContext
    virtual sal_Int64 SAL_CALL getAccessibleChildCount(  ) override;
    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int64 i ) override;
    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) override;
    virtual sal_Int64 SAL_CALL getAccessibleIndexInParent(  ) override;
    virtual sal_Int16 SAL_CALL getAccessibleRole(  ) override;
    virtual OUString SAL_CALL getAccessibleDescription(  ) override;
    virtual OUString SAL_CALL getAccessibleName(  ) override;
    virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) override;
    virtual sal_Int64 SAL_CALL getAccessibleStateSet(  ) override;
    virtual css::lang::Locale SAL_CALL getLocale(  ) override;
 
    // XAccessibleComponent
    virtual sal_Bool SAL_CALL containsPoint( const css::awt::Point& aPoint ) override;
    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& aPoint ) override;
    virtual css::awt::Rectangle SAL_CALL getBounds(  ) override;
    virtual css::awt::Point SAL_CALL getLocation(  ) override;
    virtual css::awt::Point SAL_CALL getLocationOnScreen(  ) override;
    virtual css::awt::Size SAL_CALL getSize(  ) override;
    virtual void SAL_CALL grabFocus(  ) override;
    virtual sal_Int32 SAL_CALL getForeground(  ) override;
    virtual sal_Int32 SAL_CALL getBackground(  ) override;
 
    // XAccessibleSelection
    virtual void SAL_CALL selectAccessibleChild( sal_Int64 nChildIndex ) override;
    virtual sal_Bool SAL_CALL isAccessibleChildSelected( sal_Int64 nChildIndex ) override;
    virtual void SAL_CALL clearAccessibleSelection(  ) override;
    virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
    virtual sal_Int64 SAL_CALL getSelectedAccessibleChildCount(  ) override;
    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild( sal_Int64 nSelectedChildIndex ) override;
    virtual void SAL_CALL deselectAccessibleChild( sal_Int64 nSelectedChildIndex ) override;
 
private:
    ::std::vector< css::uno::Reference<
        css::accessibility::XAccessibleEventListener > >                mxEventListeners;
    ValueSet*                                                    mpParent;
    bool mbIsFocused;
 
    virtual void disposing(std::unique_lock<std::mutex>&) override;
 
    sal_uInt16 getItemCount() const;
 
    ValueSetItem* getItem (sal_uInt16 nIndex) const;
 
    void ThrowIfDisposed();
 
    bool HasNoneField() const;
};
 
class ValueItemAcc : public ::cppu::WeakImplHelper< css::accessibility::XAccessible,
                                                     css::accessibility::XAccessibleEventBroadcaster,
                                                     css::accessibility::XAccessibleContext,
                                                     css::accessibility::XAccessibleComponent >
{
private:
 
    ::std::vector< css::uno::Reference<
        css::accessibility::XAccessibleEventListener > >                mxEventListeners;
    std::mutex                                                          maMutex;
    ValueSetItem*                                                    mpParent;
    bool                                                                mbIsTransientChildrenDisabled;
 
public:
 
    ValueItemAcc(ValueSetItem* pParent, bool bIsTransientChildrenDisabled);
    virtual ~ValueItemAcc() override;
 
    void    ParentDestroyed();
 
    void    FireAccessibleEvent( short nEventId, const css::uno::Any& rOldValue, const css::uno::Any& rNewValue );
 
    static ValueItemAcc* getImplementation( const css::uno::Reference< css::uno::XInterface >& rxData ) noexcept;
 
public:
 
    // XAccessible
    virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) 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;
 
    // XAccessibleContext
    virtual sal_Int64 SAL_CALL getAccessibleChildCount(  ) override;
    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int64 i ) override;
    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) override;
    virtual sal_Int64 SAL_CALL getAccessibleIndexInParent(  ) override;
    virtual sal_Int16 SAL_CALL getAccessibleRole(  ) override;
    virtual OUString SAL_CALL getAccessibleDescription(  ) override;
    virtual OUString SAL_CALL getAccessibleName(  ) override;
    virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) override;
    virtual sal_Int64 SAL_CALL getAccessibleStateSet(  ) override;
    virtual css::lang::Locale SAL_CALL getLocale(  ) override;
 
    // XAccessibleComponent
    virtual sal_Bool SAL_CALL containsPoint( const css::awt::Point& aPoint ) override;
    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& aPoint ) override;
    virtual css::awt::Rectangle SAL_CALL getBounds(  ) override;
    virtual css::awt::Point SAL_CALL getLocation(  ) override;
    virtual css::awt::Point SAL_CALL getLocationOnScreen(  ) override;
    virtual css::awt::Size SAL_CALL getSize(  ) override;
    virtual void SAL_CALL grabFocus(  ) override;
    virtual sal_Int32 SAL_CALL getForeground(  ) override;
    virtual sal_Int32 SAL_CALL getBackground(  ) override;
};
 
 
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