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Diffstat (limited to 'accessible/xul/XULSelectControlAccessible.cpp')
| -rw-r--r-- | accessible/xul/XULSelectControlAccessible.cpp | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/accessible/xul/XULSelectControlAccessible.cpp b/accessible/xul/XULSelectControlAccessible.cpp new file mode 100644 index 000000000..a1cc65d78 --- /dev/null +++ b/accessible/xul/XULSelectControlAccessible.cpp @@ -0,0 +1,256 @@ +/* -*- 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); +} |