From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- vcl/unx/gtk3/a11y/gtk3atkwrapper.cxx | 942 +++++++++++++++++++++++++++++++++++ 1 file changed, 942 insertions(+) create mode 100644 vcl/unx/gtk3/a11y/gtk3atkwrapper.cxx (limited to 'vcl/unx/gtk3/a11y/gtk3atkwrapper.cxx') diff --git a/vcl/unx/gtk3/a11y/gtk3atkwrapper.cxx b/vcl/unx/gtk3/a11y/gtk3atkwrapper.cxx new file mode 100644 index 000000000..ab011d9d0 --- /dev/null +++ b/vcl/unx/gtk3/a11y/gtk3atkwrapper.cxx @@ -0,0 +1,942 @@ +/* -*- 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 . + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "atkwrapper.hxx" +#include "atkregistry.hxx" +#include "atklistener.hxx" +#include "atktextattributes.hxx" + +#include +#include + +using namespace ::com::sun::star; + +static GObjectClass *parent_class = nullptr; + +static AtkRelationType mapRelationType( sal_Int16 nRelation ) +{ + AtkRelationType type = ATK_RELATION_NULL; + + switch( nRelation ) + { + case accessibility::AccessibleRelationType::CONTENT_FLOWS_FROM: + type = ATK_RELATION_FLOWS_FROM; + break; + + case accessibility::AccessibleRelationType::CONTENT_FLOWS_TO: + type = ATK_RELATION_FLOWS_TO; + break; + + case accessibility::AccessibleRelationType::CONTROLLED_BY: + type = ATK_RELATION_CONTROLLED_BY; + break; + + case accessibility::AccessibleRelationType::CONTROLLER_FOR: + type = ATK_RELATION_CONTROLLER_FOR; + break; + + case accessibility::AccessibleRelationType::LABEL_FOR: + type = ATK_RELATION_LABEL_FOR; + break; + + case accessibility::AccessibleRelationType::LABELED_BY: + type = ATK_RELATION_LABELLED_BY; + break; + + case accessibility::AccessibleRelationType::MEMBER_OF: + type = ATK_RELATION_MEMBER_OF; + break; + + case accessibility::AccessibleRelationType::SUB_WINDOW_OF: + type = ATK_RELATION_SUBWINDOW_OF; + break; + + case accessibility::AccessibleRelationType::NODE_CHILD_OF: + type = ATK_RELATION_NODE_CHILD_OF; + break; + + default: + break; + } + + return type; +} + +AtkStateType mapAtkState( sal_Int16 nState ) +{ + AtkStateType type = ATK_STATE_INVALID; + + // A perfect / complete mapping ... + switch( nState ) + { +#define MAP_DIRECT( a ) \ + case accessibility::AccessibleStateType::a: \ + type = ATK_STATE_##a; break + + MAP_DIRECT( INVALID ); + MAP_DIRECT( ACTIVE ); + MAP_DIRECT( ARMED ); + MAP_DIRECT( BUSY ); + MAP_DIRECT( CHECKED ); + MAP_DIRECT( EDITABLE ); + MAP_DIRECT( ENABLED ); + MAP_DIRECT( EXPANDABLE ); + MAP_DIRECT( EXPANDED ); + MAP_DIRECT( FOCUSABLE ); + MAP_DIRECT( FOCUSED ); + MAP_DIRECT( HORIZONTAL ); + MAP_DIRECT( ICONIFIED ); + MAP_DIRECT( INDETERMINATE ); + MAP_DIRECT( MANAGES_DESCENDANTS ); + MAP_DIRECT( MODAL ); + MAP_DIRECT( MULTI_LINE ); + MAP_DIRECT( OPAQUE ); + MAP_DIRECT( PRESSED ); + MAP_DIRECT( RESIZABLE ); + MAP_DIRECT( SELECTABLE ); + MAP_DIRECT( SELECTED ); + MAP_DIRECT( SENSITIVE ); + MAP_DIRECT( SHOWING ); + MAP_DIRECT( SINGLE_LINE ); + MAP_DIRECT( STALE ); + MAP_DIRECT( TRANSIENT ); + MAP_DIRECT( VERTICAL ); + MAP_DIRECT( VISIBLE ); + MAP_DIRECT( DEFAULT ); + // a spelling error ... + case accessibility::AccessibleStateType::DEFUNC: + type = ATK_STATE_DEFUNCT; break; + case accessibility::AccessibleStateType::MULTI_SELECTABLE: + type = ATK_STATE_MULTISELECTABLE; break; + default: + //Mis-use ATK_STATE_LAST_DEFINED to check if a state is unmapped + //NOTE! Do not report it + type = ATK_STATE_LAST_DEFINED; + break; + } + + return type; +} + +static AtkRole getRoleForName( const gchar * name ) +{ + AtkRole ret = atk_role_for_name( name ); + if( ATK_ROLE_INVALID == ret ) + { + // this should only happen in old ATK versions + SAL_WNODEPRECATED_DECLARATIONS_PUSH + ret = atk_role_register( name ); + SAL_WNODEPRECATED_DECLARATIONS_POP + } + + return ret; +} + +static AtkRole mapToAtkRole( sal_Int16 nRole ) +{ + AtkRole role = ATK_ROLE_UNKNOWN; + + static AtkRole roleMap[] = { + ATK_ROLE_UNKNOWN, + ATK_ROLE_ALERT, + ATK_ROLE_COLUMN_HEADER, + ATK_ROLE_CANVAS, + ATK_ROLE_CHECK_BOX, + ATK_ROLE_CHECK_MENU_ITEM, + ATK_ROLE_COLOR_CHOOSER, + ATK_ROLE_COMBO_BOX, + ATK_ROLE_DATE_EDITOR, + ATK_ROLE_DESKTOP_ICON, + ATK_ROLE_DESKTOP_FRAME, // ? pane + ATK_ROLE_DIRECTORY_PANE, + ATK_ROLE_DIALOG, + ATK_ROLE_UNKNOWN, // DOCUMENT - registered below + ATK_ROLE_UNKNOWN, // EMBEDDED_OBJECT - registered below + ATK_ROLE_UNKNOWN, // END_NOTE - registered below + ATK_ROLE_FILE_CHOOSER, + ATK_ROLE_FILLER, + ATK_ROLE_FONT_CHOOSER, + ATK_ROLE_FOOTER, + ATK_ROLE_UNKNOWN, // FOOTNOTE - registered below + ATK_ROLE_FRAME, + ATK_ROLE_GLASS_PANE, + ATK_ROLE_IMAGE, // GRAPHIC + ATK_ROLE_UNKNOWN, // GROUP_BOX - registered below + ATK_ROLE_HEADER, + ATK_ROLE_HEADING, + ATK_ROLE_TEXT, // HYPER_LINK - registered below + ATK_ROLE_ICON, + ATK_ROLE_INTERNAL_FRAME, + ATK_ROLE_LABEL, + ATK_ROLE_LAYERED_PANE, + ATK_ROLE_LIST, + ATK_ROLE_LIST_ITEM, + ATK_ROLE_MENU, + ATK_ROLE_MENU_BAR, + ATK_ROLE_MENU_ITEM, + ATK_ROLE_OPTION_PANE, + ATK_ROLE_PAGE_TAB, + ATK_ROLE_PAGE_TAB_LIST, + ATK_ROLE_PANEL, + ATK_ROLE_PARAGRAPH, + ATK_ROLE_PASSWORD_TEXT, + ATK_ROLE_POPUP_MENU, + ATK_ROLE_PUSH_BUTTON, + ATK_ROLE_PROGRESS_BAR, + ATK_ROLE_RADIO_BUTTON, + ATK_ROLE_RADIO_MENU_ITEM, + ATK_ROLE_ROW_HEADER, + ATK_ROLE_ROOT_PANE, + ATK_ROLE_SCROLL_BAR, + ATK_ROLE_SCROLL_PANE, + ATK_ROLE_PANEL, // SHAPE + ATK_ROLE_SEPARATOR, + ATK_ROLE_SLIDER, + ATK_ROLE_SPIN_BUTTON, // SPIN_BOX ? + ATK_ROLE_SPLIT_PANE, + ATK_ROLE_STATUSBAR, + ATK_ROLE_TABLE, + ATK_ROLE_TABLE_CELL, + ATK_ROLE_TEXT, + ATK_ROLE_PANEL, // TEXT_FRAME + ATK_ROLE_TOGGLE_BUTTON, + ATK_ROLE_TOOL_BAR, + ATK_ROLE_TOOL_TIP, + ATK_ROLE_TREE, + ATK_ROLE_VIEWPORT, + ATK_ROLE_WINDOW, + ATK_ROLE_PUSH_BUTTON, // BUTTON_DROPDOWN + ATK_ROLE_PUSH_BUTTON, // BUTTON_MENU + ATK_ROLE_UNKNOWN, // CAPTION - registered below + ATK_ROLE_UNKNOWN, // CHART - registered below + ATK_ROLE_UNKNOWN, // EDIT_BAR - registered below + ATK_ROLE_UNKNOWN, // FORM - registered below + ATK_ROLE_UNKNOWN, // IMAGE_MAP - registered below + ATK_ROLE_UNKNOWN, // NOTE - registered below + ATK_ROLE_UNKNOWN, // PAGE - registered below + ATK_ROLE_RULER, + ATK_ROLE_UNKNOWN, // SECTION - registered below + ATK_ROLE_UNKNOWN, // TREE_ITEM - registered below + ATK_ROLE_TREE_TABLE, + ATK_ROLE_SCROLL_PANE, // COMMENT - mapped to atk_role_scroll_pane + ATK_ROLE_UNKNOWN // COMMENT_END - mapped to atk_role_unknown +#if defined(ATK_CHECK_VERSION) + //older ver that doesn't define ATK_CHECK_VERSION doesn't have the following + , ATK_ROLE_DOCUMENT_PRESENTATION + , ATK_ROLE_DOCUMENT_SPREADSHEET + , ATK_ROLE_DOCUMENT_TEXT +#if ATK_CHECK_VERSION(2,15,2) + , ATK_ROLE_STATIC +#else + , ATK_ROLE_LABEL +#endif +#else + //older version should fallback to DOCUMENT_FRAME role + , ATK_ROLE_DOCUMENT_FRAME + , ATK_ROLE_DOCUMENT_FRAME + , ATK_ROLE_DOCUMENT_FRAME + , ATK_ROLE_LABEL +#endif + }; + + static bool initialized = false; + + if( ! initialized ) + { + // the accessible roles below were added to ATK in later versions, + // with role_for_name we will know if they exist in runtime. + roleMap[accessibility::AccessibleRole::EDIT_BAR] = getRoleForName("edit bar"); + roleMap[accessibility::AccessibleRole::EMBEDDED_OBJECT] = getRoleForName("embedded"); + roleMap[accessibility::AccessibleRole::CHART] = getRoleForName("chart"); + roleMap[accessibility::AccessibleRole::CAPTION] = getRoleForName("caption"); + roleMap[accessibility::AccessibleRole::DOCUMENT] = getRoleForName("document frame"); + roleMap[accessibility::AccessibleRole::PAGE] = getRoleForName("page"); + roleMap[accessibility::AccessibleRole::SECTION] = getRoleForName("section"); + roleMap[accessibility::AccessibleRole::FORM] = getRoleForName("form"); + roleMap[accessibility::AccessibleRole::GROUP_BOX] = getRoleForName("grouping"); + roleMap[accessibility::AccessibleRole::COMMENT] = getRoleForName("comment"); + roleMap[accessibility::AccessibleRole::IMAGE_MAP] = getRoleForName("image map"); + roleMap[accessibility::AccessibleRole::TREE_ITEM] = getRoleForName("tree item"); + roleMap[accessibility::AccessibleRole::HYPER_LINK] = getRoleForName("link"); + roleMap[accessibility::AccessibleRole::END_NOTE] = getRoleForName("footnote"); + roleMap[accessibility::AccessibleRole::FOOTNOTE] = getRoleForName("footnote"); + roleMap[accessibility::AccessibleRole::NOTE] = getRoleForName("comment"); + + initialized = true; + } + + static const sal_Int32 nMapSize = SAL_N_ELEMENTS(roleMap); + if( 0 <= nRole && nMapSize > nRole ) + role = roleMap[nRole]; + + return role; +} + +/*****************************************************************************/ + +extern "C" { + +/*****************************************************************************/ + +static const gchar* +wrapper_get_name( AtkObject *atk_obj ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER (atk_obj); + + if( obj->mpContext.is() ) + { + try { + OString aName = + OUStringToOString( + obj->mpContext->getAccessibleName(), + RTL_TEXTENCODING_UTF8); + + int nCmp = atk_obj->name ? rtl_str_compare( atk_obj->name, aName.getStr() ) : -1; + if( nCmp != 0 ) + { + if( atk_obj->name ) + g_free(atk_obj->name); + atk_obj->name = g_strdup(aName.getStr()); + } + } + catch(const uno::Exception&) { + g_warning( "Exception in getAccessibleName()" ); + } + } + + return ATK_OBJECT_CLASS (parent_class)->get_name(atk_obj); +} + +/*****************************************************************************/ + +static const gchar* +wrapper_get_description( AtkObject *atk_obj ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER (atk_obj); + + if( obj->mpContext.is() ) + { + try { + OString aDescription = + OUStringToOString( + obj->mpContext->getAccessibleDescription(), + RTL_TEXTENCODING_UTF8); + + g_free(atk_obj->description); + atk_obj->description = g_strdup(aDescription.getStr()); + } + catch(const uno::Exception&) { + g_warning( "Exception in getAccessibleDescription()" ); + } + } + + return ATK_OBJECT_CLASS (parent_class)->get_description(atk_obj); + +} + +/*****************************************************************************/ + +static AtkAttributeSet * +wrapper_get_attributes( AtkObject *atk_obj ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER( atk_obj ); + AtkAttributeSet *pSet = nullptr; + + try + { + uno::Reference< accessibility::XAccessibleExtendedAttributes > + xExtendedAttrs( obj->mpContext, uno::UNO_QUERY ); + if( xExtendedAttrs.is() ) + pSet = attribute_set_new_from_extended_attributes( xExtendedAttrs ); + } + catch(const uno::Exception&) + { + g_warning( "Exception in getAccessibleAttributes()" ); + } + + return pSet; +} + +/*****************************************************************************/ + +static gint +wrapper_get_n_children( AtkObject *atk_obj ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER (atk_obj); + gint n = 0; + + if( obj->mpContext.is() ) + { + try { + n = obj->mpContext->getAccessibleChildCount(); + } + catch(const uno::Exception&) { + OSL_FAIL("Exception in getAccessibleChildCount()" ); + } + } + + return n; +} + +/*****************************************************************************/ + +static AtkObject * +wrapper_ref_child( AtkObject *atk_obj, + gint i ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER (atk_obj); + AtkObject* child = nullptr; + + // see comments above atk_object_wrapper_remove_child + if( -1 < i && obj->index_of_child_about_to_be_removed == i ) + { + g_object_ref( obj->child_about_to_be_removed ); + return obj->child_about_to_be_removed; + } + + if( obj->mpContext.is() ) + { + try { + uno::Reference< accessibility::XAccessible > xAccessible = + obj->mpContext->getAccessibleChild( i ); + + child = atk_object_wrapper_ref( xAccessible ); + } + catch(const uno::Exception&) { + OSL_FAIL("Exception in getAccessibleChild"); + } + } + + return child; +} + +/*****************************************************************************/ + +static gint +wrapper_get_index_in_parent( AtkObject *atk_obj ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER (atk_obj); + + //if we're a native GtkDrawingArea with custom a11y, use the default toolkit a11y + if (obj->mpOrig) + return atk_object_get_index_in_parent(obj->mpOrig); + + gint i = -1; + + if( obj->mpContext.is() ) + { + try { + i = obj->mpContext->getAccessibleIndexInParent(); + } + catch(const uno::Exception&) { + g_warning( "Exception in getAccessibleIndexInParent()" ); + } + } + return i; +} + +/*****************************************************************************/ + +AtkRelation* +atk_object_wrapper_relation_new(const accessibility::AccessibleRelation& rRelation) +{ + sal_uInt32 nTargetCount = rRelation.TargetSet.getLength(); + + std::vector aTargets; + + for (const auto& rTarget : rRelation.TargetSet) + { + uno::Reference< accessibility::XAccessible > xAccessible( rTarget, uno::UNO_QUERY ); + aTargets.push_back(atk_object_wrapper_ref(xAccessible)); + } + + AtkRelation *pRel = + atk_relation_new( + aTargets.data(), nTargetCount, + mapRelationType( rRelation.RelationType ) + ); + + return pRel; +} + +static AtkRelationSet * +wrapper_ref_relation_set( AtkObject *atk_obj ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER (atk_obj); + + //if we're a native GtkDrawingArea with custom a11y, use the default toolkit relation set impl + if (obj->mpOrig) + return atk_object_ref_relation_set(obj->mpOrig); + + AtkRelationSet *pSet = atk_relation_set_new(); + + if( obj->mpContext.is() ) + { + try { + uno::Reference< accessibility::XAccessibleRelationSet > xRelationSet( + obj->mpContext->getAccessibleRelationSet() + ); + + sal_Int32 nRelations = xRelationSet.is() ? xRelationSet->getRelationCount() : 0; + for( sal_Int32 n = 0; n < nRelations; n++ ) + { + AtkRelation *pRel = atk_object_wrapper_relation_new(xRelationSet->getRelation(n)); + atk_relation_set_add(pSet, pRel); + g_object_unref(pRel); + } + } + catch(const uno::Exception &) { + g_object_unref( G_OBJECT( pSet ) ); + pSet = nullptr; + } + } + + return pSet; +} + +static AtkStateSet * +wrapper_ref_state_set( AtkObject *atk_obj ) +{ + AtkObjectWrapper *obj = ATK_OBJECT_WRAPPER (atk_obj); + AtkStateSet *pSet = atk_state_set_new(); + + if( obj->mpContext.is() ) + { + try { + uno::Reference< accessibility::XAccessibleStateSet > xStateSet( + obj->mpContext->getAccessibleStateSet()); + + if( xStateSet.is() ) + { + uno::Sequence< sal_Int16 > aStates = xStateSet->getStates(); + + for( const auto nState : aStates ) + { + // ATK_STATE_LAST_DEFINED is used to check if the state + // is unmapped, do not report it to Atk + if ( mapAtkState( nState ) != ATK_STATE_LAST_DEFINED ) + atk_state_set_add_state( pSet, mapAtkState( nState ) ); + } + + // We need to emulate FOCUS state for menus, menu-items etc. + if( atk_obj == atk_get_focus_object() ) + atk_state_set_add_state( pSet, ATK_STATE_FOCUSED ); +/* FIXME - should we do this ? + else + atk_state_set_remove_state( pSet, ATK_STATE_FOCUSED ); +*/ + } + } + + catch(const uno::Exception &) { + g_warning( "Exception in wrapper_ref_state_set" ); + atk_state_set_add_state( pSet, ATK_STATE_DEFUNCT ); + } + } + else + atk_state_set_add_state( pSet, ATK_STATE_DEFUNCT ); + + return pSet; +} + +/*****************************************************************************/ + +static void +atk_object_wrapper_finalize (GObject *obj) +{ + AtkObjectWrapper *pWrap = ATK_OBJECT_WRAPPER (obj); + + if( pWrap->mpAccessible.is() ) + { + ooo_wrapper_registry_remove( pWrap->mpAccessible ); + pWrap->mpAccessible.clear(); + } + + atk_object_wrapper_dispose( pWrap ); + + parent_class->finalize( obj ); +} + +static void +atk_object_wrapper_class_init (AtkObjectWrapperClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS( klass ); + AtkObjectClass *atk_class = ATK_OBJECT_CLASS( klass ); + + parent_class = static_cast(g_type_class_peek_parent (klass)); + + // GObject methods + gobject_class->finalize = atk_object_wrapper_finalize; + + // AtkObject methods + atk_class->get_name = wrapper_get_name; + atk_class->get_description = wrapper_get_description; + atk_class->get_attributes = wrapper_get_attributes; + atk_class->get_n_children = wrapper_get_n_children; + atk_class->ref_child = wrapper_ref_child; + atk_class->get_index_in_parent = wrapper_get_index_in_parent; + atk_class->ref_relation_set = wrapper_ref_relation_set; + atk_class->ref_state_set = wrapper_ref_state_set; +} + +static void +atk_object_wrapper_init (AtkObjectWrapper *wrapper, + AtkObjectWrapperClass*) +{ + wrapper->mpAction = nullptr; + wrapper->mpComponent = nullptr; + wrapper->mpEditableText = nullptr; + wrapper->mpHypertext = nullptr; + wrapper->mpImage = nullptr; + wrapper->mpSelection = nullptr; + wrapper->mpTable = nullptr; + wrapper->mpText = nullptr; + wrapper->mpValue = nullptr; +} + +} // extern "C" + +GType +atk_object_wrapper_get_type() +{ + static GType type = 0; + + if (!type) + { + static const GTypeInfo typeInfo = + { + sizeof (AtkObjectWrapperClass), + nullptr, + nullptr, + reinterpret_cast(atk_object_wrapper_class_init), + nullptr, + nullptr, + sizeof (AtkObjectWrapper), + 0, + reinterpret_cast(atk_object_wrapper_init), + nullptr + } ; + type = g_type_register_static (ATK_TYPE_OBJECT, + "OOoAtkObj", + &typeInfo, GTypeFlags(0)) ; + } + return type; +} + +static bool +isOfType( uno::XInterface *pInterface, const uno::Type & rType ) +{ + g_return_val_if_fail( pInterface != nullptr, false ); + + bool bIs = false; + try { + uno::Any aRet = pInterface->queryInterface( rType ); + + bIs = ( ( typelib_TypeClass_INTERFACE == aRet.pType->eTypeClass ) && + ( aRet.pReserved != nullptr ) ); + } catch( const uno::Exception &) { } + + return bIs; +} + +extern "C" { +typedef GType (* GetGIfaceType ) (); +} +const struct { + const char *name; + GInterfaceInitFunc const aInit; + GetGIfaceType const aGetGIfaceType; + const uno::Type & (*aGetUnoType) (); +} aTypeTable[] = { +// re-location heaven: + { + "Comp", reinterpret_cast(componentIfaceInit), + atk_component_get_type, + cppu::UnoType::get + }, + { + "Act", reinterpret_cast(actionIfaceInit), + atk_action_get_type, + cppu::UnoType::get + }, + { + "Txt", reinterpret_cast(textIfaceInit), + atk_text_get_type, + cppu::UnoType::get + }, + { + "Val", reinterpret_cast(valueIfaceInit), + atk_value_get_type, + cppu::UnoType::get + }, + { + "Tab", reinterpret_cast(tableIfaceInit), + atk_table_get_type, + cppu::UnoType::get + }, + { + "Edt", reinterpret_cast(editableTextIfaceInit), + atk_editable_text_get_type, + cppu::UnoType::get + }, + { + "Img", reinterpret_cast(imageIfaceInit), + atk_image_get_type, + cppu::UnoType::get + }, + { + "Hyp", reinterpret_cast(hypertextIfaceInit), + atk_hypertext_get_type, + cppu::UnoType::get + }, + { + "Sel", reinterpret_cast(selectionIfaceInit), + atk_selection_get_type, + cppu::UnoType::get + } + // AtkDocument is a nastily broken interface (so far) + // we could impl. get_document_type perhaps though. +}; + +const int aTypeTableSize = G_N_ELEMENTS( aTypeTable ); + +static GType +ensureTypeFor( uno::XInterface *pAccessible ) +{ + int i; + bool bTypes[ aTypeTableSize ] = { false, }; + OStringBuffer aTypeNameBuf( "OOoAtkObj" ); + + for( i = 0; i < aTypeTableSize; i++ ) + { + if( isOfType( pAccessible, aTypeTable[i].aGetUnoType() ) ) + { + aTypeNameBuf.append(aTypeTable[i].name); + bTypes[i] = true; + } + } + + OString aTypeName = aTypeNameBuf.makeStringAndClear(); + GType nType = g_type_from_name( aTypeName.getStr() ); + if( nType == G_TYPE_INVALID ) + { + GTypeInfo aTypeInfo = { + sizeof( AtkObjectWrapperClass ), + nullptr, nullptr, nullptr, nullptr, nullptr, + sizeof( AtkObjectWrapper ), + 0, nullptr, nullptr + } ; + nType = g_type_register_static( ATK_TYPE_OBJECT_WRAPPER, + aTypeName.getStr(), &aTypeInfo, + GTypeFlags(0) ) ; + + for( int j = 0; j < aTypeTableSize; j++ ) + if( bTypes[j] ) + { + GInterfaceInfo aIfaceInfo = { nullptr, nullptr, nullptr }; + aIfaceInfo.interface_init = aTypeTable[j].aInit; + g_type_add_interface_static (nType, aTypeTable[j].aGetGIfaceType(), + &aIfaceInfo); + } + } + return nType; +} + +AtkObject * +atk_object_wrapper_ref( const uno::Reference< accessibility::XAccessible > &rxAccessible, bool create ) +{ + g_return_val_if_fail( rxAccessible.get() != nullptr, nullptr ); + + AtkObject *obj = ooo_wrapper_registry_get(rxAccessible); + if( obj ) + { + g_object_ref( obj ); + return obj; + } + + if( create ) + return atk_object_wrapper_new( rxAccessible ); + + return nullptr; +} + +AtkObject * +atk_object_wrapper_new( const css::uno::Reference< css::accessibility::XAccessible >& rxAccessible, + AtkObject* parent, AtkObject* orig ) +{ + g_return_val_if_fail( rxAccessible.get() != nullptr, nullptr ); + + AtkObjectWrapper *pWrap = nullptr; + + try { + uno::Reference< accessibility::XAccessibleContext > xContext(rxAccessible->getAccessibleContext()); + + g_return_val_if_fail( xContext.get() != nullptr, nullptr ); + + GType nType = ensureTypeFor( xContext.get() ); + gpointer obj = g_object_new( nType, nullptr); + + pWrap = ATK_OBJECT_WRAPPER( obj ); + pWrap->mpAccessible = rxAccessible; + + pWrap->index_of_child_about_to_be_removed = -1; + pWrap->child_about_to_be_removed = nullptr; + + pWrap->mpContext = xContext; + pWrap->mpOrig = orig; + + AtkObject* atk_obj = ATK_OBJECT(pWrap); + atk_obj->role = mapToAtkRole( xContext->getAccessibleRole() ); + atk_obj->accessible_parent = parent; + + ooo_wrapper_registry_add( rxAccessible, atk_obj ); + + if( parent ) + g_object_ref( atk_obj->accessible_parent ); + else + { + /* gail_focus_tracker remembers the focused object at the first + * parent in the hierarchy that is a Gtk+ widget, but at the time the + * event gets processed (at idle), it may be too late to create the + * hierarchy, so doing it now .. + */ + uno::Reference< accessibility::XAccessible > xParent( xContext->getAccessibleParent() ); + + if( xParent.is() ) + atk_obj->accessible_parent = atk_object_wrapper_ref( xParent ); + } + + // Attach a listener to the UNO object if it's not TRANSIENT + uno::Reference< accessibility::XAccessibleStateSet > xStateSet( xContext->getAccessibleStateSet() ); + if( xStateSet.is() && ! xStateSet->contains( accessibility::AccessibleStateType::TRANSIENT ) ) + { + uno::Reference< accessibility::XAccessibleEventBroadcaster > xBroadcaster(xContext, uno::UNO_QUERY); + if( xBroadcaster.is() ) + { + uno::Reference xListener(new AtkListener(pWrap)); + xBroadcaster->addAccessibleEventListener(xListener); + } + else + OSL_ASSERT( false ); + } + + static auto func = reinterpret_cast(dlsym(nullptr, "atk_object_set_accessible_id")); + if (func) + { + css::uno::Reference xContext2(xContext, css::uno::UNO_QUERY); + if( xContext2.is() ) + { + OString aId = OUStringToOString( xContext2->getAccessibleId(), RTL_TEXTENCODING_UTF8); + (*func)(atk_obj, aId.getStr()); + } + } + + return ATK_OBJECT( pWrap ); + } + catch (const uno::Exception &) + { + if( pWrap ) + g_object_unref( pWrap ); + + return nullptr; + } +} + +/*****************************************************************************/ + +void atk_object_wrapper_add_child(AtkObjectWrapper* wrapper, AtkObject *child, gint index) +{ + AtkObject *atk_obj = ATK_OBJECT( wrapper ); + + atk_object_set_parent( child, atk_obj ); + g_signal_emit_by_name( atk_obj, "children_changed::add", index, child, nullptr ); +} + +/*****************************************************************************/ + +void atk_object_wrapper_remove_child(AtkObjectWrapper* wrapper, AtkObject *child, gint index) +{ + /* + * the atk-bridge GTK+ module gets back to the event source to ref the child just + * vanishing, so we keep this reference because the semantic on OOo side is different. + */ + wrapper->child_about_to_be_removed = child; + wrapper->index_of_child_about_to_be_removed = index; + + g_signal_emit_by_name( ATK_OBJECT( wrapper ), "children_changed::remove", index, child, nullptr ); + + wrapper->index_of_child_about_to_be_removed = -1; + wrapper->child_about_to_be_removed = nullptr; +} + +/*****************************************************************************/ + +void atk_object_wrapper_set_role(AtkObjectWrapper* wrapper, sal_Int16 role) +{ + AtkObject *atk_obj = ATK_OBJECT( wrapper ); + atk_object_set_role( atk_obj, mapToAtkRole( role ) ); +} + +/*****************************************************************************/ + +void atk_object_wrapper_dispose(AtkObjectWrapper* wrapper) +{ + wrapper->mpContext.clear(); + wrapper->mpAction.clear(); + wrapper->mpComponent.clear(); + wrapper->mpEditableText.clear(); + wrapper->mpHypertext.clear(); + wrapper->mpImage.clear(); + wrapper->mpSelection.clear(); + wrapper->mpMultiLineText.clear(); + wrapper->mpTable.clear(); + wrapper->mpText.clear(); + wrapper->mpTextMarkup.clear(); + wrapper->mpTextAttributes.clear(); + wrapper->mpValue.clear(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3