diff options
Diffstat (limited to 'vcl/unx/gtk3/a11y/gtk3atklistener.cxx')
| -rw-r--r-- | vcl/unx/gtk3/a11y/gtk3atklistener.cxx | 729 |
1 files changed, 728 insertions, 1 deletions
diff --git a/vcl/unx/gtk3/a11y/gtk3atklistener.cxx b/vcl/unx/gtk3/a11y/gtk3atklistener.cxx index eca1cd7ec1d0..c30bc638bced 100644 --- a/vcl/unx/gtk3/a11y/gtk3atklistener.cxx +++ b/vcl/unx/gtk3/a11y/gtk3atklistener.cxx @@ -5,8 +5,735 @@ * 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 . */ -#include "../../gtk/a11y/atklistener.cxx" +#ifdef AIX +#define _LINUX_SOURCE_COMPAT +#include <sys/timer.h> +#undef _LINUX_SOURCE_COMPAT +#endif + +#include <com/sun/star/accessibility/TextSegment.hpp> +#include <com/sun/star/accessibility/AccessibleEventId.hpp> +#include <com/sun/star/accessibility/AccessibleStateType.hpp> +#include <com/sun/star/accessibility/AccessibleTableModelChange.hpp> +#include <com/sun/star/accessibility/AccessibleTableModelChangeType.hpp> +#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp> +#include <com/sun/star/lang/IndexOutOfBoundsException.hpp> + +#include "atklistener.hxx" +#include "atkwrapper.hxx" +#include <vcl/svapp.hxx> + +#include <rtl/ref.hxx> +#include <sal/log.hxx> + +#define DEBUG_ATK_LISTENER 0 + +#if DEBUG_ATK_LISTENER +#include <iostream> +#include <sstream> +#endif + +using namespace com::sun::star; + +AtkListener::AtkListener( AtkObjectWrapper* pWrapper ) : mpWrapper( pWrapper ) +{ + if( mpWrapper ) + { + g_object_ref( mpWrapper ); + updateChildList( mpWrapper->mpContext ); + } +} + +AtkListener::~AtkListener() +{ + if( mpWrapper ) + g_object_unref( mpWrapper ); +} + +/*****************************************************************************/ + +static AtkStateType mapState( const uno::Any &rAny ) +{ + sal_Int16 nState = accessibility::AccessibleStateType::INVALID; + rAny >>= nState; + return mapAtkState( nState ); +} + +/*****************************************************************************/ + +extern "C" { + // rhbz#1001768 - down to horrific problems releasing the solar mutex + // while destroying a Window - which occurs inside these notifications. + static gboolean + idle_defunc_state_change( AtkObject *atk_obj ) + { + SolarMutexGuard aGuard; + + // This is an equivalent to a state change to DEFUNC(T). + atk_object_notify_state_change( atk_obj, ATK_STATE_DEFUNCT, TRUE ); + if( atk_get_focus_object() == atk_obj ) + { + SAL_WNODEPRECATED_DECLARATIONS_PUSH + atk_focus_tracker_notify( nullptr ); + SAL_WNODEPRECATED_DECLARATIONS_POP + } + g_object_unref( G_OBJECT( atk_obj ) ); + return false; + } +} + +// XEventListener implementation +void AtkListener::disposing( const lang::EventObject& ) +{ + if( mpWrapper ) + { + AtkObject *atk_obj = ATK_OBJECT( mpWrapper ); + + // Release all interface references to avoid shutdown problems with + // global mutex + atk_object_wrapper_dispose( mpWrapper ); + + g_idle_add( reinterpret_cast<GSourceFunc>(idle_defunc_state_change), + g_object_ref( G_OBJECT( atk_obj ) ) ); + + // Release the wrapper object so that it can vanish .. + g_object_unref( mpWrapper ); + mpWrapper = nullptr; + } +} + +/*****************************************************************************/ + +static AtkObject *getObjFromAny( const uno::Any &rAny ) +{ + uno::Reference< accessibility::XAccessible > xAccessible; + rAny >>= xAccessible; + return xAccessible.is() ? atk_object_wrapper_ref( xAccessible ) : nullptr; +} + +/*****************************************************************************/ + +// Updates the child list held to provide the old IndexInParent on children_changed::remove +void AtkListener::updateChildList( + css::uno::Reference<css::accessibility::XAccessibleContext> const & + pContext) +{ + m_aChildList.clear(); + + uno::Reference< accessibility::XAccessibleStateSet > xStateSet = pContext->getAccessibleStateSet(); + if( xStateSet.is() + && !xStateSet->contains(accessibility::AccessibleStateType::DEFUNC) + && !xStateSet->contains(accessibility::AccessibleStateType::MANAGES_DESCENDANTS) ) + { + sal_Int32 nChildren = pContext->getAccessibleChildCount(); + m_aChildList.resize(nChildren); + for(sal_Int32 n = 0; n < nChildren; n++) + { + try + { + m_aChildList[n] = pContext->getAccessibleChild(n); + } + catch (lang::IndexOutOfBoundsException const&) + { + sal_Int32 nChildren2 = pContext->getAccessibleChildCount(); + assert(nChildren2 <= n && "consistency?"); + m_aChildList.resize(std::min(nChildren2, n)); + break; + } + } + } +} + +/*****************************************************************************/ + +void AtkListener::handleChildAdded( + const uno::Reference< accessibility::XAccessibleContext >& rxParent, + const uno::Reference< accessibility::XAccessible>& rxAccessible) +{ + AtkObject * pChild = rxAccessible.is() ? atk_object_wrapper_ref( rxAccessible ) : nullptr; + + if( pChild ) + { + updateChildList(rxParent); + + atk_object_wrapper_add_child( mpWrapper, pChild, + atk_object_get_index_in_parent( pChild )); + + g_object_unref( pChild ); + } +} + +/*****************************************************************************/ + +void AtkListener::handleChildRemoved( + const uno::Reference< accessibility::XAccessibleContext >& rxParent, + const uno::Reference< accessibility::XAccessible>& rxChild) +{ + sal_Int32 nIndex = -1; + + // Locate the child in the children list + size_t n, nmax = m_aChildList.size(); + for( n = 0; n < nmax; ++n ) + { + if( rxChild == m_aChildList[n] ) + { + nIndex = n; + break; + } + } + + // FIXME: two problems here: + // a) we get child-removed events for objects that are no real children + // in the accessibility hierarchy or have been removed before due to + // some child removing batch. + // b) spi_atk_bridge_signal_listener ignores the given parameters + // for children_changed events and always asks the parent for the + // 0. child, which breaks somehow on vanishing list boxes. + // Ignoring "remove" events for objects not in the m_aChildList + // for now. + if( nIndex >= 0 ) + { + uno::Reference<accessibility::XAccessibleEventBroadcaster> xBroadcaster( + rxChild->getAccessibleContext(), uno::UNO_QUERY); + + if (xBroadcaster.is()) + { + uno::Reference<accessibility::XAccessibleEventListener> xListener(this); + xBroadcaster->removeAccessibleEventListener(xListener); + } + + updateChildList(rxParent); + + AtkObject * pChild = atk_object_wrapper_ref( rxChild, false ); + if( pChild ) + { + atk_object_wrapper_remove_child( mpWrapper, pChild, nIndex ); + g_object_unref( pChild ); + } + } +} + +/*****************************************************************************/ + +void AtkListener::handleInvalidateChildren( + const uno::Reference< accessibility::XAccessibleContext >& rxParent) +{ + // Send notifications for all previous children + size_t n = m_aChildList.size(); + while( n-- > 0 ) + { + if( m_aChildList[n].is() ) + { + AtkObject * pChild = atk_object_wrapper_ref( m_aChildList[n], false ); + if( pChild ) + { + atk_object_wrapper_remove_child( mpWrapper, pChild, n ); + g_object_unref( pChild ); + } + } + } + + updateChildList(rxParent); + + // Send notifications for all new children + size_t nmax = m_aChildList.size(); + for( n = 0; n < nmax; ++n ) + { + if( m_aChildList[n].is() ) + { + AtkObject * pChild = atk_object_wrapper_ref( m_aChildList[n] ); + + if( pChild ) + { + atk_object_wrapper_add_child( mpWrapper, pChild, n ); + g_object_unref( pChild ); + } + } + } +} + +/*****************************************************************************/ + +static uno::Reference< accessibility::XAccessibleContext > +getAccessibleContextFromSource( const uno::Reference< uno::XInterface >& rxSource ) +{ + uno::Reference< accessibility::XAccessibleContext > xContext(rxSource, uno::UNO_QUERY); + if( ! xContext.is() ) + { + g_warning( "ERROR: Event source does not implement XAccessibleContext" ); + + // Second try - query for XAccessible, which should give us access to + // XAccessibleContext. + uno::Reference< accessibility::XAccessible > xAccessible(rxSource, uno::UNO_QUERY); + if( xAccessible.is() ) + xContext = xAccessible->getAccessibleContext(); + } + + return xContext; +} + +#if DEBUG_ATK_LISTENER + +namespace { + +void printNotifyEvent( const accessibility::AccessibleEventObject& rEvent ) +{ + static std::vector<const char*> aLabels = { + 0, + "NAME_CHANGED", // 01 + "DESCRIPTION_CHANGED", // 02 + "ACTION_CHANGED", // 03 + "STATE_CHANGED", // 04 + "ACTIVE_DESCENDANT_CHANGED", // 05 + "BOUNDRECT_CHANGED", // 06 + "CHILD", // 07 + "INVALIDATE_ALL_CHILDREN", // 08 + "SELECTION_CHANGED", // 09 + "VISIBLE_DATA_CHANGED", // 10 + "VALUE_CHANGED", // 11 + "CONTENT_FLOWS_FROM_RELATION_CHANGED", // 12 + "CONTENT_FLOWS_TO_RELATION_CHANGED", // 13 + "CONTROLLED_BY_RELATION_CHANGED", // 14 + "CONTROLLER_FOR_RELATION_CHANGED", // 15 + "LABEL_FOR_RELATION_CHANGED", // 16 + "LABELED_BY_RELATION_CHANGED", // 17 + "MEMBER_OF_RELATION_CHANGED", // 18 + "SUB_WINDOW_OF_RELATION_CHANGED", // 19 + "CARET_CHANGED", // 20 + "TEXT_SELECTION_CHANGED", // 21 + "TEXT_CHANGED", // 22 + "TEXT_ATTRIBUTE_CHANGED", // 23 + "HYPERTEXT_CHANGED", // 24 + "TABLE_CAPTION_CHANGED", // 25 + "TABLE_COLUMN_DESCRIPTION_CHANGED", // 26 + "TABLE_COLUMN_HEADER_CHANGED", // 27 + "TABLE_MODEL_CHANGED", // 28 + "TABLE_ROW_DESCRIPTION_CHANGED", // 29 + "TABLE_ROW_HEADER_CHANGED", // 30 + "TABLE_SUMMARY_CHANGED", // 31 + "LISTBOX_ENTRY_EXPANDED", // 32 + "LISTBOX_ENTRY_COLLAPSED", // 33 + "ACTIVE_DESCENDANT_CHANGED_NOFOCUS", // 34 + "SELECTION_CHANGED_ADD", // 35 + "SELECTION_CHANGED_REMOVE", // 36 + "SELECTION_CHANGED_WITHIN", // 37 + "PAGE_CHANGED", // 38 + "SECTION_CHANGED", // 39 + "COLUMN_CHANGED", // 40 + "ROLE_CHANGED", // 41 + }; + + static std::vector<const char*> aStates = { + "INVALID", // 00 + "ACTIVE", // 01 + "ARMED", // 02 + "BUSY", // 03 + "CHECKED", // 04 + "DEFUNC", // 05 + "EDITABLE", // 06 + "ENABLED", // 07 + "EXPANDABLE", // 08 + "EXPANDED", // 09 + "FOCUSABLE", // 10 + "FOCUSED", // 11 + "HORIZONTAL", // 12 + "ICONIFIED", // 13 + "INDETERMINATE", // 14 + "MANAGES_DESCENDANTS", // 15 + "MODAL", // 16 + "MULTI_LINE", // 17 + "MULTI_SELECTABLE", // 18 + "OPAQUE", // 19 + "PRESSED", // 20 + "RESIZABLE", // 21 + "SELECTABLE", // 22 + "SELECTED", // 23 + "SENSITIVE", // 24 + "SHOWING", // 25 + "SINGLE_LINE", // 26 + "STALE", // 27 + "TRANSIENT", // 28 + "VERTICAL", // 29 + "VISIBLE", // 30 + "MOVEABLE", // 31 + "DEFAULT", // 32 + "OFFSCREEN", // 33 + "COLLAPSE", // 34 + }; + + auto getOrUnknown = [](const std::vector<const char*>& rCont, size_t nIndex) -> std::string + { + return (nIndex < rCont.size()) ? rCont[nIndex] : "<unknown>"; + }; + + std::ostringstream os; + os << "--" << std::endl; + os << "* event = " << getOrUnknown(aLabels, rEvent.EventId) << std::endl; + + switch (rEvent.EventId) + { + case accessibility::AccessibleEventId::STATE_CHANGED: + { + sal_Int16 nState; + if (rEvent.OldValue >>= nState) + os << " * old state = " << getOrUnknown(aStates, nState); + if (rEvent.NewValue >>= nState) + os << " * new state = " << getOrUnknown(aStates, nState); + + os << std::endl; + break; + } + default: + ; + } + + std::cout << os.str(); +} + +} + +#endif + +void AtkListener::notifyEvent( const accessibility::AccessibleEventObject& aEvent ) +{ + if( !mpWrapper ) + return; + + AtkObject *atk_obj = ATK_OBJECT( mpWrapper ); + + switch( aEvent.EventId ) + { + // AtkObject signals: + // Hierarchy signals + case accessibility::AccessibleEventId::CHILD: + { + uno::Reference< accessibility::XAccessibleContext > xParent; + uno::Reference< accessibility::XAccessible > xChild; + + xParent = getAccessibleContextFromSource(aEvent.Source); + g_return_if_fail( xParent.is() ); + + if( aEvent.OldValue >>= xChild ) + handleChildRemoved(xParent, xChild); + + if( aEvent.NewValue >>= xChild ) + handleChildAdded(xParent, xChild); + break; + } + + case accessibility::AccessibleEventId::INVALIDATE_ALL_CHILDREN: + { + uno::Reference< accessibility::XAccessibleContext > xParent = getAccessibleContextFromSource(aEvent.Source); + g_return_if_fail( xParent.is() ); + + handleInvalidateChildren(xParent); + break; + } + + case accessibility::AccessibleEventId::NAME_CHANGED: + { + OUString aName; + if( aEvent.NewValue >>= aName ) + { + atk_object_set_name(atk_obj, + OUStringToOString(aName, RTL_TEXTENCODING_UTF8).getStr()); + } + break; + } + + case accessibility::AccessibleEventId::DESCRIPTION_CHANGED: + { + OUString aDescription; + if( aEvent.NewValue >>= aDescription ) + { + atk_object_set_description(atk_obj, + OUStringToOString(aDescription, RTL_TEXTENCODING_UTF8).getStr()); + } + break; + } + + case accessibility::AccessibleEventId::STATE_CHANGED: + { + AtkStateType eOldState = mapState( aEvent.OldValue ); + AtkStateType eNewState = mapState( aEvent.NewValue ); + + gboolean bState = eNewState != ATK_STATE_INVALID; + AtkStateType eRealState = bState ? eNewState : eOldState; + + atk_object_notify_state_change( atk_obj, eRealState, bState ); + break; + } + + case accessibility::AccessibleEventId::BOUNDRECT_CHANGED: + +#ifdef HAS_ATKRECTANGLE + if( ATK_IS_COMPONENT( atk_obj ) ) + { + AtkRectangle rect; + + atk_component_get_extents( ATK_COMPONENT( atk_obj ), + &rect.x, + &rect.y, + &rect.width, + &rect.height, + ATK_XY_SCREEN ); + + g_signal_emit_by_name( atk_obj, "bounds_changed", &rect ); + } + else + g_warning( "bounds_changed event for object not implementing AtkComponent\n"); +#endif + + break; + + case accessibility::AccessibleEventId::VISIBLE_DATA_CHANGED: + g_signal_emit_by_name( atk_obj, "visible-data-changed" ); + break; + + case accessibility::AccessibleEventId::ACTIVE_DESCENDANT_CHANGED: + { + AtkObject *pChild = getObjFromAny( aEvent.NewValue ); + if( pChild ) + { + g_signal_emit_by_name( atk_obj, "active-descendant-changed", pChild ); + g_object_unref( pChild ); + } + break; + } + + //ACTIVE_DESCENDANT_CHANGED_NOFOCUS (sic) appears to have been added + //as a workaround or an aid for the ia2 winaccessibility implementation + //so ignore it silently without warning here + case accessibility::AccessibleEventId::ACTIVE_DESCENDANT_CHANGED_NOFOCUS: + break; + + // #i92103# + case accessibility::AccessibleEventId::LISTBOX_ENTRY_EXPANDED: + { + AtkObject *pChild = getObjFromAny( aEvent.NewValue ); + if( pChild ) + { + atk_object_notify_state_change( pChild, ATK_STATE_EXPANDED, true ); + g_object_unref( pChild ); + } + break; + } + + case accessibility::AccessibleEventId::LISTBOX_ENTRY_COLLAPSED: + { + AtkObject *pChild = getObjFromAny( aEvent.NewValue ); + if( pChild ) + { + atk_object_notify_state_change( pChild, ATK_STATE_EXPANDED, false ); + g_object_unref( pChild ); + } + break; + } + + // AtkAction signals ... + case accessibility::AccessibleEventId::ACTION_CHANGED: + g_signal_emit_by_name( G_OBJECT( atk_obj ), "property_change::accessible-actions"); + break; + + // AtkText + case accessibility::AccessibleEventId::CARET_CHANGED: + { + sal_Int32 nPos=0; + aEvent.NewValue >>= nPos; + g_signal_emit_by_name( atk_obj, "text_caret_moved", nPos ); + break; + } + case accessibility::AccessibleEventId::TEXT_CHANGED: + { + // TESTME: and remove this comment: + // cf. comphelper/source/misc/accessibletexthelper.cxx (implInitTextChangedEvent) + accessibility::TextSegment aDeletedText; + accessibility::TextSegment aInsertedText; + + // TODO: when GNOME starts to send "update" kind of events, change + // we need to re-think this implementation as well + if( aEvent.OldValue >>= aDeletedText ) + { + /* Remember the text segment here to be able to return removed text in get_text(). + * This is clearly a hack to be used until appropriate API exists in atk to pass + * the string value directly or we find a compelling reason to start caching the + * UTF-8 converted strings in the atk wrapper object. + */ + + g_object_set_data( G_OBJECT(atk_obj), "ooo::text_changed::delete", &aDeletedText); + + g_signal_emit_by_name( atk_obj, "text_changed::delete", + static_cast<gint>(aDeletedText.SegmentStart), + static_cast<gint>( aDeletedText.SegmentEnd - aDeletedText.SegmentStart ) ); + + g_object_steal_data( G_OBJECT(atk_obj), "ooo::text_changed::delete" ); + } + + if( aEvent.NewValue >>= aInsertedText ) + g_signal_emit_by_name( atk_obj, "text_changed::insert", + static_cast<gint>(aInsertedText.SegmentStart), + static_cast<gint>( aInsertedText.SegmentEnd - aInsertedText.SegmentStart ) ); + break; + } + + case accessibility::AccessibleEventId::TEXT_SELECTION_CHANGED: + { + g_signal_emit_by_name( atk_obj, "text-selection-changed" ); + break; + } + + case accessibility::AccessibleEventId::TEXT_ATTRIBUTE_CHANGED: + g_signal_emit_by_name( atk_obj, "text-attributes-changed" ); + break; + + // AtkValue + case accessibility::AccessibleEventId::VALUE_CHANGED: + g_object_notify( G_OBJECT( atk_obj ), "accessible-value" ); + break; + + case accessibility::AccessibleEventId::CONTENT_FLOWS_FROM_RELATION_CHANGED: + case accessibility::AccessibleEventId::CONTENT_FLOWS_TO_RELATION_CHANGED: + case accessibility::AccessibleEventId::CONTROLLED_BY_RELATION_CHANGED: + case accessibility::AccessibleEventId::CONTROLLER_FOR_RELATION_CHANGED: + case accessibility::AccessibleEventId::LABEL_FOR_RELATION_CHANGED: + case accessibility::AccessibleEventId::LABELED_BY_RELATION_CHANGED: + case accessibility::AccessibleEventId::MEMBER_OF_RELATION_CHANGED: + case accessibility::AccessibleEventId::SUB_WINDOW_OF_RELATION_CHANGED: + // FIXME: ask Bill how Atk copes with this little lot ... + break; + + // AtkTable + case accessibility::AccessibleEventId::TABLE_MODEL_CHANGED: + { + accessibility::AccessibleTableModelChange aChange; + aEvent.NewValue >>= aChange; + + sal_Int32 nRowsChanged = aChange.LastRow - aChange.FirstRow + 1; + sal_Int32 nColumnsChanged = aChange.LastColumn - aChange.FirstColumn + 1; + + static const struct { + const char *row; + const char *col; + } aSignalNames[] = + { + { nullptr, nullptr }, // dummy + { "row_inserted", "column_inserted" }, // INSERT = 1 + { "row_deleted", "column_deleted" } // DELETE = 2 + }; + switch( aChange.Type ) + { + case accessibility::AccessibleTableModelChangeType::INSERT: + case accessibility::AccessibleTableModelChangeType::DELETE: + if( nRowsChanged > 0 ) + g_signal_emit_by_name( G_OBJECT( atk_obj ), + aSignalNames[aChange.Type].row, + aChange.FirstRow, nRowsChanged ); + if( nColumnsChanged > 0 ) + g_signal_emit_by_name( G_OBJECT( atk_obj ), + aSignalNames[aChange.Type].col, + aChange.FirstColumn, nColumnsChanged ); + break; + + case accessibility::AccessibleTableModelChangeType::UPDATE: + // This is not really a model change, is it ? + break; + default: + g_warning( "TESTME: unusual table model change %d\n", aChange.Type ); + break; + } + g_signal_emit_by_name( G_OBJECT( atk_obj ), "model-changed" ); + break; + } + + case accessibility::AccessibleEventId::TABLE_COLUMN_HEADER_CHANGED: + { + accessibility::AccessibleTableModelChange aChange; + aEvent.NewValue >>= aChange; + + AtkPropertyValues values; + memset(&values, 0, sizeof(AtkPropertyValues)); + g_value_init (&values.new_value, G_TYPE_INT); + values.property_name = "accessible-table-column-header"; + + for (sal_Int32 nChangedColumn = aChange.FirstColumn; nChangedColumn <= aChange.LastColumn; ++nChangedColumn) + { + g_value_set_int (&values.new_value, nChangedColumn); + g_signal_emit_by_name(G_OBJECT(atk_obj), "property_change::accessible-table-column-header", &values, nullptr); + } + break; + } + + case accessibility::AccessibleEventId::TABLE_CAPTION_CHANGED: + g_signal_emit_by_name( G_OBJECT( atk_obj ), "property_change::accessible-table-caption"); + break; + + case accessibility::AccessibleEventId::TABLE_COLUMN_DESCRIPTION_CHANGED: + g_signal_emit_by_name( G_OBJECT( atk_obj ), "property_change::accessible-table-column-description"); + break; + + case accessibility::AccessibleEventId::TABLE_ROW_DESCRIPTION_CHANGED: + g_signal_emit_by_name( G_OBJECT( atk_obj ), "property_change::accessible-table-row-description"); + break; + + case accessibility::AccessibleEventId::TABLE_ROW_HEADER_CHANGED: + g_signal_emit_by_name( G_OBJECT( atk_obj ), "property_change::accessible-table-row-header"); + break; + + case accessibility::AccessibleEventId::TABLE_SUMMARY_CHANGED: + g_signal_emit_by_name( G_OBJECT( atk_obj ), "property_change::accessible-table-summary"); + break; + + case accessibility::AccessibleEventId::SELECTION_CHANGED: + case accessibility::AccessibleEventId::SELECTION_CHANGED_ADD: + case accessibility::AccessibleEventId::SELECTION_CHANGED_REMOVE: + case accessibility::AccessibleEventId::SELECTION_CHANGED_WITHIN: + if (ATK_IS_SELECTION(atk_obj)) + g_signal_emit_by_name(G_OBJECT(atk_obj), "selection_changed"); + else + { + // e.g. tdf#122353, when such dialogs become native the problem will go away anyway + SAL_INFO("vcl.gtk", "selection change from obj which doesn't support XAccessibleSelection"); + } + break; + + case accessibility::AccessibleEventId::HYPERTEXT_CHANGED: + g_signal_emit_by_name( G_OBJECT( atk_obj ), "property_change::accessible-hypertext-offset"); + break; + + case accessibility::AccessibleEventId::ROLE_CHANGED: + { + uno::Reference< accessibility::XAccessibleContext > xContext = getAccessibleContextFromSource( aEvent.Source ); + atk_object_wrapper_set_role( mpWrapper, xContext->getAccessibleRole() ); + break; + } + + case accessibility::AccessibleEventId::PAGE_CHANGED: + { + /* // If we implemented AtkDocument then I imagine this is what this + // handler should look like + sal_Int32 nPos=0; + aEvent.NewValue >>= nPos; + g_signal_emit_by_name( G_OBJECT( atk_obj ), "page_changed", nPos ); + */ + break; + } + + default: + SAL_WARN("vcl.gtk", "Unknown event notification: " << aEvent.EventId); + break; + } +} /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |