RetroZilla/accessible/src/atk/nsMaiInterfaceSelection.cpp

222 lines
7.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:expandtab:shiftwidth=4:tabstop=4:
*/
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Sun Microsystems, Inc.
* Portions created by Sun Microsystems are Copyright (C) 2002 Sun
* Microsystems, Inc. All Rights Reserved.
*
* Original Author: Silvia Zhao (silvia.zhao@sun.com)
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsMaiInterfaceSelection.h"
G_BEGIN_DECLS
/* selection interface callbacks */
static void interfaceInitCB(AtkSelectionIface *aIface);
static gboolean addSelectionCB(AtkSelection *aSelection,
gint i);
static gboolean clearSelectionCB(AtkSelection *aSelection);
static AtkObject *refSelectionCB(AtkSelection *aSelection,
gint i);
static gint getSelectionCountCB(AtkSelection *aSelection);
static gboolean isChildSelectedCB(AtkSelection *aSelection,
gint i);
static gboolean removeSelectionCB(AtkSelection *aSelection,
gint i);
static gboolean selectAllSelectionCB(AtkSelection *aSelection);
G_END_DECLS
MaiInterfaceSelection::MaiInterfaceSelection(nsAccessibleWrap* aAccWrap):
MaiInterface(aAccWrap)
{
}
MaiInterfaceSelection::~MaiInterfaceSelection()
{
}
MaiInterfaceType
MaiInterfaceSelection::GetType()
{
return MAI_INTERFACE_SELECTION;
}
const GInterfaceInfo *
MaiInterfaceSelection::GetInterfaceInfo()
{
static const GInterfaceInfo atk_if_selection_info = {
(GInterfaceInitFunc) interfaceInitCB,
(GInterfaceFinalizeFunc) NULL,
NULL
};
return &atk_if_selection_info;
}
/* static functions */
void
interfaceInitCB(AtkSelectionIface *aIface)
{
NS_ASSERTION(aIface, "Invalid aIface");
if (!aIface)
return;
aIface->add_selection = addSelectionCB;
aIface->clear_selection = clearSelectionCB;
aIface->ref_selection = refSelectionCB;
aIface->get_selection_count = getSelectionCountCB;
aIface->is_child_selected = isChildSelectedCB;
aIface->remove_selection = removeSelectionCB;
aIface->select_all_selection = selectAllSelectionCB;
}
gboolean
addSelectionCB(AtkSelection *aSelection, gint i)
{
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
NS_ENSURE_TRUE(accWrap, FALSE);
nsCOMPtr<nsIAccessibleSelectable> accSelection;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleSelectable),
getter_AddRefs(accSelection));
NS_ENSURE_TRUE(accSelection, FALSE);
return NS_SUCCEEDED(accSelection->AddChildToSelection(i));
}
gboolean
clearSelectionCB(AtkSelection *aSelection)
{
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
NS_ENSURE_TRUE(accWrap, FALSE);
nsCOMPtr<nsIAccessibleSelectable> accSelection;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleSelectable),
getter_AddRefs(accSelection));
NS_ENSURE_TRUE(accSelection, FALSE);
return NS_SUCCEEDED(accSelection->ClearSelection());
}
AtkObject *
refSelectionCB(AtkSelection *aSelection, gint i)
{
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
NS_ENSURE_TRUE(accWrap, nsnull);
nsCOMPtr<nsIAccessibleSelectable> accSelection;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleSelectable),
getter_AddRefs(accSelection));
NS_ENSURE_TRUE(accSelection, nsnull);
AtkObject *atkObj = nsnull;
nsCOMPtr<nsIAccessible> accSelect;
nsresult rv = accSelection->RefSelection(i, getter_AddRefs(accSelect));
if (NS_SUCCEEDED(rv) && accSelect) {
nsIAccessible *tmpAcc = accSelect;
nsAccessibleWrap *refAccWrap =
NS_STATIC_CAST(nsAccessibleWrap *, tmpAcc);
atkObj = refAccWrap->GetAtkObject();
if (atkObj)
g_object_ref(atkObj);
}
return atkObj;
}
gint
getSelectionCountCB(AtkSelection *aSelection)
{
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
NS_ENSURE_TRUE(accWrap, -1);
nsCOMPtr<nsIAccessibleSelectable> accSelection;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleSelectable),
getter_AddRefs(accSelection));
NS_ENSURE_TRUE(accSelection, -1);
PRInt32 num = 0;
nsresult rv = accSelection->GetSelectionCount(&num);
return (NS_FAILED(rv)) ? -1 : num;
}
gboolean
isChildSelectedCB(AtkSelection *aSelection, gint i)
{
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
NS_ENSURE_TRUE(accWrap, FALSE);
nsCOMPtr<nsIAccessibleSelectable> accSelection;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleSelectable),
getter_AddRefs(accSelection));
NS_ENSURE_TRUE(accSelection, FALSE);
PRBool result = FALSE;
nsresult rv = accSelection->IsChildSelected(i, &result);
return (NS_FAILED(rv)) ? FALSE : result;
}
gboolean
removeSelectionCB(AtkSelection *aSelection, gint i)
{
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
NS_ENSURE_TRUE(accWrap, FALSE);
nsCOMPtr<nsIAccessibleSelectable> accSelection;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleSelectable),
getter_AddRefs(accSelection));
NS_ENSURE_TRUE(accSelection, FALSE);
nsresult rv = accSelection->RemoveChildFromSelection(i);
return (NS_FAILED(rv)) ? FALSE : TRUE;
}
gboolean
selectAllSelectionCB(AtkSelection *aSelection)
{
nsAccessibleWrap *accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
NS_ENSURE_TRUE(accWrap, FALSE);
nsCOMPtr<nsIAccessibleSelectable> accSelection;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleSelectable),
getter_AddRefs(accSelection));
NS_ENSURE_TRUE(accSelection, FALSE);
PRBool result = FALSE;
nsresult rv = accSelection->SelectAllSelection(&result);
return (NS_FAILED(rv)) ? FALSE : result;
}