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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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/. */
#include "XULSelectControlAccessible.h"
#include "nsAccessibilityService.h"
#include "DocAccessible.h"
#include "nsIDOMXULContainerElement.h"
#include "nsIDOMXULSelectCntrlItemEl.h"
#include "nsIDOMXULMultSelectCntrlEl.h"
#include "nsIDOMKeyEvent.h"
#include "nsIDOMElement.h"
#include "nsIDOMXULElement.h"
#include "nsIMutableArray.h"
#include "nsIServiceManager.h"
#include "mozilla/dom/Element.h"
using namespace mozilla;
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// XULSelectControlAccessible
////////////////////////////////////////////////////////////////////////////////
XULSelectControlAccessible::
XULSelectControlAccessible(nsIContent* aContent, DocAccessible* aDoc) :
AccessibleWrap(aContent, aDoc)
{
mGenericTypes |= eSelect;
mSelectControl = do_QueryInterface(aContent);
}
////////////////////////////////////////////////////////////////////////////////
// XULSelectControlAccessible: Accessible
void
XULSelectControlAccessible::Shutdown()
{
mSelectControl = nullptr;
AccessibleWrap::Shutdown();
}
////////////////////////////////////////////////////////////////////////////////
// XULSelectControlAccessible: SelectAccessible
void
XULSelectControlAccessible::SelectedItems(nsTArray<Accessible*>* aItems)
{
// For XUL multi-select control
nsCOMPtr<nsIDOMXULMultiSelectControlElement> xulMultiSelect =
do_QueryInterface(mSelectControl);
if (xulMultiSelect) {
int32_t length = 0;
xulMultiSelect->GetSelectedCount(&length);
for (int32_t index = 0; index < length; index++) {
nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm;
xulMultiSelect->MultiGetSelectedItem(index, getter_AddRefs(itemElm));
nsCOMPtr<nsINode> itemNode(do_QueryInterface(itemElm));
Accessible* item = mDoc->GetAccessible(itemNode);
if (item)
aItems->AppendElement(item);
}
} else { // Single select?
nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm;
mSelectControl->GetSelectedItem(getter_AddRefs(itemElm));
nsCOMPtr<nsINode> itemNode(do_QueryInterface(itemElm));
if (itemNode) {
Accessible* item = mDoc->GetAccessible(itemNode);
if (item)
aItems->AppendElement(item);
}
}
}
Accessible*
XULSelectControlAccessible::GetSelectedItem(uint32_t aIndex)
{
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm;
if (multiSelectControl)
multiSelectControl->MultiGetSelectedItem(aIndex, getter_AddRefs(itemElm));
else if (aIndex == 0)
mSelectControl->GetSelectedItem(getter_AddRefs(itemElm));
nsCOMPtr<nsINode> itemNode(do_QueryInterface(itemElm));
return itemNode && mDoc ? mDoc->GetAccessible(itemNode) : nullptr;
}
uint32_t
XULSelectControlAccessible::SelectedItemCount()
{
// For XUL multi-select control
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
if (multiSelectControl) {
int32_t count = 0;
multiSelectControl->GetSelectedCount(&count);
return count;
}
// For XUL single-select control/menulist
int32_t index;
mSelectControl->GetSelectedIndex(&index);
return (index >= 0) ? 1 : 0;
}
bool
XULSelectControlAccessible::AddItemToSelection(uint32_t aIndex)
{
Accessible* item = GetChildAt(aIndex);
if (!item)
return false;
nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
do_QueryInterface(item->GetContent());
if (!itemElm)
return false;
bool isItemSelected = false;
itemElm->GetSelected(&isItemSelected);
if (isItemSelected)
return true;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
if (multiSelectControl)
multiSelectControl->AddItemToSelection(itemElm);
else
mSelectControl->SetSelectedItem(itemElm);
return true;
}
bool
XULSelectControlAccessible::RemoveItemFromSelection(uint32_t aIndex)
{
Accessible* item = GetChildAt(aIndex);
if (!item)
return false;
nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
do_QueryInterface(item->GetContent());
if (!itemElm)
return false;
bool isItemSelected = false;
itemElm->GetSelected(&isItemSelected);
if (!isItemSelected)
return true;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
if (multiSelectControl)
multiSelectControl->RemoveItemFromSelection(itemElm);
else
mSelectControl->SetSelectedItem(nullptr);
return true;
}
bool
XULSelectControlAccessible::IsItemSelected(uint32_t aIndex)
{
Accessible* item = GetChildAt(aIndex);
if (!item)
return false;
nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
do_QueryInterface(item->GetContent());
if (!itemElm)
return false;
bool isItemSelected = false;
itemElm->GetSelected(&isItemSelected);
return isItemSelected;
}
bool
XULSelectControlAccessible::UnselectAll()
{
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
multiSelectControl ?
multiSelectControl->ClearSelection() : mSelectControl->SetSelectedIndex(-1);
return true;
}
bool
XULSelectControlAccessible::SelectAll()
{
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
if (multiSelectControl) {
multiSelectControl->SelectAll();
return true;
}
// otherwise, don't support this method
return false;
}
////////////////////////////////////////////////////////////////////////////////
// XULSelectControlAccessible: Widgets
Accessible*
XULSelectControlAccessible::CurrentItem()
{
if (!mSelectControl)
return nullptr;
nsCOMPtr<nsIDOMXULSelectControlItemElement> currentItemElm;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
if (multiSelectControl)
multiSelectControl->GetCurrentItem(getter_AddRefs(currentItemElm));
else
mSelectControl->GetSelectedItem(getter_AddRefs(currentItemElm));
nsCOMPtr<nsINode> DOMNode;
if (currentItemElm)
DOMNode = do_QueryInterface(currentItemElm);
if (DOMNode) {
DocAccessible* document = Document();
if (document)
return document->GetAccessible(DOMNode);
}
return nullptr;
}
void
XULSelectControlAccessible::SetCurrentItem(Accessible* aItem)
{
if (!mSelectControl)
return;
nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
do_QueryInterface(aItem->GetContent());
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
do_QueryInterface(mSelectControl);
if (multiSelectControl)
multiSelectControl->SetCurrentItem(itemElm);
else
mSelectControl->SetSelectedItem(itemElm);
}
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