/* -*- 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 "nsIDOMXULSelectCntrlItemEl.h" #include "nsIDOMXULMultSelectCntrlEl.h" #include "mozilla/dom/Element.h" #include "mozilla/dom/KeyboardEventBinding.h" using namespace mozilla; using namespace mozilla::a11y; //////////////////////////////////////////////////////////////////////////////// // XULSelectControlAccessible //////////////////////////////////////////////////////////////////////////////// XULSelectControlAccessible::XULSelectControlAccessible(nsIContent* aContent, DocAccessible* aDoc) : AccessibleWrap(aContent, aDoc) { mGenericTypes |= eSelect; mSelectControl = aContent->AsElement(); } //////////////////////////////////////////////////////////////////////////////// // XULSelectControlAccessible: LocalAccessible void XULSelectControlAccessible::Shutdown() { mSelectControl = nullptr; AccessibleWrap::Shutdown(); } //////////////////////////////////////////////////////////////////////////////// // XULSelectControlAccessible: SelectAccessible void XULSelectControlAccessible::SelectedItems(nsTArray<Accessible*>* aItems) { // For XUL multi-select control nsCOMPtr<nsIDOMXULMultiSelectControlElement> xulMultiSelect = mSelectControl->AsXULMultiSelectControl(); if (xulMultiSelect) { int32_t length = 0; xulMultiSelect->GetSelectedCount(&length); for (int32_t index = 0; index < length; index++) { RefPtr<dom::Element> element; xulMultiSelect->MultiGetSelectedItem(index, getter_AddRefs(element)); LocalAccessible* item = mDoc->GetAccessible(element); if (item) aItems->AppendElement(item); } } else { // Single select? nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); RefPtr<dom::Element> element; selectControl->GetSelectedItem(getter_AddRefs(element)); if (element) { LocalAccessible* item = mDoc->GetAccessible(element); if (item) aItems->AppendElement(item); } } } Accessible* XULSelectControlAccessible::GetSelectedItem(uint32_t aIndex) { nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = mSelectControl->AsXULMultiSelectControl(); RefPtr<dom::Element> element; if (multiSelectControl) { multiSelectControl->MultiGetSelectedItem(aIndex, getter_AddRefs(element)); } else if (aIndex == 0) { nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); if (selectControl) { selectControl->GetSelectedItem(getter_AddRefs(element)); } } return element && mDoc ? mDoc->GetAccessible(element) : nullptr; } uint32_t XULSelectControlAccessible::SelectedItemCount() { // For XUL multi-select control nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = mSelectControl->AsXULMultiSelectControl(); if (multiSelectControl) { int32_t count = 0; multiSelectControl->GetSelectedCount(&count); return count; } // For XUL single-select control/menulist nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); if (selectControl) { int32_t index = -1; selectControl->GetSelectedIndex(&index); return (index >= 0) ? 1 : 0; } return 0; } bool XULSelectControlAccessible::AddItemToSelection(uint32_t aIndex) { LocalAccessible* item = LocalChildAt(aIndex); if (!item || !item->GetContent()) return false; nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm = item->GetContent()->AsElement()->AsXULSelectControlItem(); if (!itemElm) return false; bool isItemSelected = false; itemElm->GetSelected(&isItemSelected); if (isItemSelected) return true; nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = mSelectControl->AsXULMultiSelectControl(); if (multiSelectControl) { multiSelectControl->AddItemToSelection(itemElm); } else { nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); if (selectControl) { selectControl->SetSelectedItem(item->Elm()); } } return true; } bool XULSelectControlAccessible::RemoveItemFromSelection(uint32_t aIndex) { LocalAccessible* item = LocalChildAt(aIndex); if (!item || !item->GetContent()) return false; nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm = item->GetContent()->AsElement()->AsXULSelectControlItem(); if (!itemElm) return false; bool isItemSelected = false; itemElm->GetSelected(&isItemSelected); if (!isItemSelected) return true; nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = mSelectControl->AsXULMultiSelectControl(); if (multiSelectControl) { multiSelectControl->RemoveItemFromSelection(itemElm); } else { nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); if (selectControl) { selectControl->SetSelectedItem(nullptr); } } return true; } bool XULSelectControlAccessible::IsItemSelected(uint32_t aIndex) { LocalAccessible* item = LocalChildAt(aIndex); if (!item || !item->GetContent()) return false; nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm = item->GetContent()->AsElement()->AsXULSelectControlItem(); if (!itemElm) return false; bool isItemSelected = false; itemElm->GetSelected(&isItemSelected); return isItemSelected; } bool XULSelectControlAccessible::UnselectAll() { nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = mSelectControl->AsXULMultiSelectControl(); if (multiSelectControl) { multiSelectControl->ClearSelection(); } else { nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); if (selectControl) { selectControl->SetSelectedIndex(-1); } } return true; } bool XULSelectControlAccessible::SelectAll() { nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = mSelectControl->AsXULMultiSelectControl(); if (multiSelectControl) { multiSelectControl->SelectAll(); return true; } // otherwise, don't support this method return false; } //////////////////////////////////////////////////////////////////////////////// // XULSelectControlAccessible: Widgets LocalAccessible* XULSelectControlAccessible::CurrentItem() const { // aria-activedescendant should override. LocalAccessible* current = AccessibleWrap::CurrentItem(); if (current) { return current; } if (!mSelectControl) return nullptr; RefPtr<dom::Element> currentItemElm; nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = mSelectControl->AsXULMultiSelectControl(); if (multiSelectControl) { multiSelectControl->GetCurrentItem(getter_AddRefs(currentItemElm)); } else { nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); if (selectControl) { selectControl->GetSelectedItem(getter_AddRefs(currentItemElm)); } } if (currentItemElm) { DocAccessible* document = Document(); if (document) return document->GetAccessible(currentItemElm); } return nullptr; } void XULSelectControlAccessible::SetCurrentItem(const LocalAccessible* aItem) { if (!mSelectControl) return; nsCOMPtr<dom::Element> itemElm = aItem->Elm(); nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl = itemElm->AsXULMultiSelectControl(); if (multiSelectControl) { multiSelectControl->SetCurrentItem(itemElm); } else { nsCOMPtr<nsIDOMXULSelectControlElement> selectControl = mSelectControl->AsXULSelectControl(); if (selectControl) { selectControl->SetSelectedItem(itemElm); } } }