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| -rw-r--r-- | svtools/source/control/valueimp.hxx | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/svtools/source/control/valueimp.hxx b/svtools/source/control/valueimp.hxx new file mode 100644 index 0000000000..61e849cc1a --- /dev/null +++ b/svtools/source/control/valueimp.hxx @@ -0,0 +1,245 @@ +/* -*- 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 <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 ); } + +public: + + /** Called by the corresponding ValueSet when it gets the focus. + Stores the new focus state and broadcasts a state change event. + */ + void GetFocus(); + + /** Called by the corresponding ValueSet when it loses the focus. + Stores the new focus state and broadcasts a state change event. + */ + void LoseFocus(); + + /** Called by the corresponding ValueSet when it gets destroyed. */ + void Invalidate(); + + // 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; + /// The current FOCUSED state. + bool mbIsFocused; + + /** Tell all listeners that the object is dying. This callback is + usually called from the WeakComponentImplHelper class. + */ + virtual void disposing(std::unique_lock<std::mutex>&) override; + + /** Return the number of items. This takes the None-Item into account. + */ + sal_uInt16 getItemCount() const; + + /** Return the item associated with the given index. The None-Item is + taken into account which, when present, is taken to be the first + (with index 0) item. + @param nIndex + Index of the item to return. The index 0 denotes the None-Item + when present. + @return + Returns NULL when the given index is out of range. + */ + ValueSetItem* getItem (sal_uInt16 nIndex) const; + + /** 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. + @param bCheckValueSet + Whether to also check that the ValueSet (parent) + is non-null. + @throws css::lang::DisposedException + */ + void ThrowIfDisposed(bool bCheckParent = true); + + /** Check whether the value set has a 'none' field, i.e. a field (button) + that deselects any items (selects none of them). + @return + Returns <true/> if there is a 'none' field and <false/> if it is + missing. + */ + 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; +}; + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |