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9f69f88101
This depends on richlistitem's nsIDOMXULSelectControlItemElement::label implementation, which does the wrong thing in several cases. We could make this use a11y name computation, but I can't find any other list box implementation that exposes accessible value on the list box itself, so I don't see any reason to keep this. Differential Revision: https://phabricator.services.mozilla.com/D74372
506 lines
16 KiB
C++
506 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "XULListboxAccessible.h"
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#include "Accessible-inl.h"
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#include "nsAccessibilityService.h"
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#include "nsAccUtils.h"
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#include "DocAccessible.h"
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#include "Role.h"
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#include "States.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIAutoCompletePopup.h"
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#include "nsIDOMXULMenuListElement.h"
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#include "nsIDOMXULMultSelectCntrlEl.h"
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#include "nsIDOMXULSelectCntrlItemEl.h"
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#include "nsINodeList.h"
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using namespace mozilla::a11y;
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////////////////////////////////////////////////////////////////////////////////
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// XULColumAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULColumAccessible::XULColumAccessible(nsIContent* aContent,
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DocAccessible* aDoc)
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: AccessibleWrap(aContent, aDoc) {}
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role XULColumAccessible::NativeRole() const { return roles::LIST; }
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uint64_t XULColumAccessible::NativeState() const { return states::READONLY; }
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////////////////////////////////////////////////////////////////////////////////
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// XULColumnItemAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULColumnItemAccessible::XULColumnItemAccessible(nsIContent* aContent,
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DocAccessible* aDoc)
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: LeafAccessible(aContent, aDoc) {}
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role XULColumnItemAccessible::NativeRole() const { return roles::COLUMNHEADER; }
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uint64_t XULColumnItemAccessible::NativeState() const {
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return states::READONLY;
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}
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uint8_t XULColumnItemAccessible::ActionCount() const { return 1; }
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void XULColumnItemAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName) {
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if (aIndex == eAction_Click) aName.AssignLiteral("click");
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}
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bool XULColumnItemAccessible::DoAction(uint8_t aIndex) const {
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if (aIndex != eAction_Click) return false;
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DoCommand();
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListboxAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULListboxAccessible::XULListboxAccessible(nsIContent* aContent,
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DocAccessible* aDoc)
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: XULSelectControlAccessible(aContent, aDoc) {
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nsIContent* parentContent = mContent->GetFlattenedTreeParent();
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if (parentContent) {
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nsCOMPtr<nsIAutoCompletePopup> autoCompletePopupElm =
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parentContent->AsElement()->AsAutoCompletePopup();
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if (autoCompletePopupElm) mGenericTypes |= eAutoCompletePopup;
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}
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if (IsMulticolumn()) mGenericTypes |= eTable;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListboxAccessible: Accessible
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uint64_t XULListboxAccessible::NativeState() const {
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// As a XULListboxAccessible we can have the following states:
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// FOCUSED, READONLY, FOCUSABLE
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// Get focus status from base class
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uint64_t states = Accessible::NativeState();
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// see if we are multiple select if so set ourselves as such
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if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::seltype,
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nsGkAtoms::multiple, eCaseMatters)) {
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states |= states::MULTISELECTABLE | states::EXTSELECTABLE;
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}
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return states;
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}
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role XULListboxAccessible::NativeRole() const {
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// A richlistbox is used with the new autocomplete URL bar, and has a parent
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// popup <panel>.
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if (mContent->GetParent() &&
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mContent->GetParent()->IsXULElement(nsGkAtoms::panel))
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return roles::COMBOBOX_LIST;
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return IsMulticolumn() ? roles::TABLE : roles::LISTBOX;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListboxAccessible: Table
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uint32_t XULListboxAccessible::ColCount() const { return 0; }
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uint32_t XULListboxAccessible::RowCount() {
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nsCOMPtr<nsIDOMXULSelectControlElement> element = Elm()->AsXULSelectControl();
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uint32_t itemCount = 0;
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if (element) element->GetItemCount(&itemCount);
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return itemCount;
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}
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Accessible* XULListboxAccessible::CellAt(uint32_t aRowIndex,
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uint32_t aColumnIndex) {
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nsCOMPtr<nsIDOMXULSelectControlElement> control = Elm()->AsXULSelectControl();
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NS_ENSURE_TRUE(control, nullptr);
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RefPtr<dom::Element> element;
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control->GetItemAtIndex(aRowIndex, getter_AddRefs(element));
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if (!element) return nullptr;
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Accessible* row = mDoc->GetAccessible(element);
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NS_ENSURE_TRUE(row, nullptr);
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return row->GetChildAt(aColumnIndex);
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}
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bool XULListboxAccessible::IsColSelected(uint32_t aColIdx) {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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int32_t selectedrowCount = 0;
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nsresult rv = control->GetSelectedCount(&selectedrowCount);
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NS_ENSURE_SUCCESS(rv, false);
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return selectedrowCount == static_cast<int32_t>(RowCount());
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}
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bool XULListboxAccessible::IsRowSelected(uint32_t aRowIdx) {
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nsCOMPtr<nsIDOMXULSelectControlElement> control = Elm()->AsXULSelectControl();
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NS_ASSERTION(control, "Doesn't implement nsIDOMXULSelectControlElement.");
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RefPtr<dom::Element> element;
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nsresult rv = control->GetItemAtIndex(aRowIdx, getter_AddRefs(element));
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NS_ENSURE_SUCCESS(rv, false);
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if (!element) {
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return false;
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}
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nsCOMPtr<nsIDOMXULSelectControlItemElement> item =
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element->AsXULSelectControlItem();
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bool isSelected = false;
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item->GetSelected(&isSelected);
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return isSelected;
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}
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bool XULListboxAccessible::IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx) {
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return IsRowSelected(aRowIdx);
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}
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uint32_t XULListboxAccessible::SelectedCellCount() {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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nsCOMPtr<nsINodeList> selectedItems;
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control->GetSelectedItems(getter_AddRefs(selectedItems));
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if (!selectedItems) return 0;
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uint32_t selectedItemsCount = selectedItems->Length();
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return selectedItemsCount * ColCount();
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}
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uint32_t XULListboxAccessible::SelectedColCount() {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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int32_t selectedRowCount = 0;
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nsresult rv = control->GetSelectedCount(&selectedRowCount);
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NS_ENSURE_SUCCESS(rv, 0);
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return selectedRowCount > 0 &&
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selectedRowCount == static_cast<int32_t>(RowCount())
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? ColCount()
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: 0;
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}
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uint32_t XULListboxAccessible::SelectedRowCount() {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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int32_t selectedRowCount = 0;
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nsresult rv = control->GetSelectedCount(&selectedRowCount);
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NS_ENSURE_SUCCESS(rv, 0);
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return selectedRowCount >= 0 ? selectedRowCount : 0;
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}
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void XULListboxAccessible::SelectedCells(nsTArray<Accessible*>* aCells) {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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nsCOMPtr<nsINodeList> selectedItems;
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control->GetSelectedItems(getter_AddRefs(selectedItems));
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if (!selectedItems) return;
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uint32_t selectedItemsCount = selectedItems->Length();
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for (uint32_t index = 0; index < selectedItemsCount; index++) {
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nsIContent* itemContent = selectedItems->Item(index);
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Accessible* item = mDoc->GetAccessible(itemContent);
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if (item) {
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uint32_t cellCount = item->ChildCount();
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for (uint32_t cellIdx = 0; cellIdx < cellCount; cellIdx++) {
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Accessible* cell = mChildren[cellIdx];
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if (cell->Role() == roles::CELL) aCells->AppendElement(cell);
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}
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}
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}
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}
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void XULListboxAccessible::SelectedCellIndices(nsTArray<uint32_t>* aCells) {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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nsCOMPtr<nsINodeList> selectedItems;
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control->GetSelectedItems(getter_AddRefs(selectedItems));
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if (!selectedItems) return;
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uint32_t selectedItemsCount = selectedItems->Length();
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uint32_t colCount = ColCount();
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aCells->SetCapacity(selectedItemsCount * colCount);
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aCells->AppendElements(selectedItemsCount * colCount);
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for (uint32_t selItemsIdx = 0, cellsIdx = 0; selItemsIdx < selectedItemsCount;
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selItemsIdx++) {
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nsIContent* itemContent = selectedItems->Item(selItemsIdx);
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nsCOMPtr<nsIDOMXULSelectControlItemElement> item =
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itemContent->AsElement()->AsXULSelectControlItem();
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if (item) {
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int32_t itemIdx = -1;
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control->GetIndexOfItem(item, &itemIdx);
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if (itemIdx >= 0)
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for (uint32_t colIdx = 0; colIdx < colCount; colIdx++, cellsIdx++)
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aCells->ElementAt(cellsIdx) = itemIdx * colCount + colIdx;
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}
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}
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}
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void XULListboxAccessible::SelectedColIndices(nsTArray<uint32_t>* aCols) {
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uint32_t selColCount = SelectedColCount();
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aCols->SetCapacity(selColCount);
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for (uint32_t colIdx = 0; colIdx < selColCount; colIdx++)
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aCols->AppendElement(colIdx);
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}
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void XULListboxAccessible::SelectedRowIndices(nsTArray<uint32_t>* aRows) {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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nsCOMPtr<nsINodeList> selectedItems;
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control->GetSelectedItems(getter_AddRefs(selectedItems));
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if (!selectedItems) return;
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uint32_t rowCount = selectedItems->Length();
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if (!rowCount) return;
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aRows->SetCapacity(rowCount);
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aRows->AppendElements(rowCount);
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for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
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nsIContent* itemContent = selectedItems->Item(rowIdx);
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nsCOMPtr<nsIDOMXULSelectControlItemElement> item =
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itemContent->AsElement()->AsXULSelectControlItem();
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if (item) {
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int32_t itemIdx = -1;
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control->GetIndexOfItem(item, &itemIdx);
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if (itemIdx >= 0) aRows->ElementAt(rowIdx) = itemIdx;
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}
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}
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}
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void XULListboxAccessible::SelectRow(uint32_t aRowIdx) {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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RefPtr<dom::Element> item;
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control->GetItemAtIndex(aRowIdx, getter_AddRefs(item));
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if (!item) {
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return;
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}
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nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
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item->AsXULSelectControlItem();
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control->SelectItem(itemElm);
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}
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void XULListboxAccessible::UnselectRow(uint32_t aRowIdx) {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
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Elm()->AsXULMultiSelectControl();
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NS_ASSERTION(control,
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"Doesn't implement nsIDOMXULMultiSelectControlElement.");
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RefPtr<dom::Element> item;
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control->GetItemAtIndex(aRowIdx, getter_AddRefs(item));
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if (!item) {
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return;
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}
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nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
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item->AsXULSelectControlItem();
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control->RemoveItemFromSelection(itemElm);
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListboxAccessible: Widgets
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bool XULListboxAccessible::IsWidget() const { return true; }
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bool XULListboxAccessible::IsActiveWidget() const {
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if (IsAutoCompletePopup()) {
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nsIContent* parentContent = mContent->GetParent();
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if (parentContent) {
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nsCOMPtr<nsIAutoCompletePopup> autoCompletePopupElm =
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parentContent->AsElement()->AsAutoCompletePopup();
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if (autoCompletePopupElm) {
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bool isOpen = false;
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autoCompletePopupElm->GetPopupOpen(&isOpen);
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return isOpen;
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}
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}
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}
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return FocusMgr()->HasDOMFocus(mContent);
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}
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bool XULListboxAccessible::AreItemsOperable() const {
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if (IsAutoCompletePopup()) {
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nsIContent* parentContent = mContent->GetParent();
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if (parentContent) {
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nsCOMPtr<nsIAutoCompletePopup> autoCompletePopupElm =
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parentContent->AsElement()->AsAutoCompletePopup();
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if (autoCompletePopupElm) {
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bool isOpen = false;
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autoCompletePopupElm->GetPopupOpen(&isOpen);
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return isOpen;
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}
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}
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}
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return true;
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}
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Accessible* XULListboxAccessible::ContainerWidget() const {
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if (IsAutoCompletePopup() && mContent->GetParent()) {
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// This works for XUL autocompletes. It doesn't work for HTML forms
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// autocomplete because of potential crossprocess calls (when autocomplete
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// lives in content process while popup lives in chrome process). If that's
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// a problem then rethink Widgets interface.
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nsCOMPtr<nsIDOMXULMenuListElement> menuListElm =
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mContent->GetParent()->AsElement()->AsXULMenuList();
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if (menuListElm) {
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RefPtr<mozilla::dom::Element> inputElm;
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menuListElm->GetInputField(getter_AddRefs(inputElm));
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if (inputElm) {
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Accessible* input = mDoc->GetAccessible(inputElm);
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return input ? input->ContainerWidget() : nullptr;
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}
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}
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}
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return nullptr;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListitemAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULListitemAccessible::XULListitemAccessible(nsIContent* aContent,
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DocAccessible* aDoc)
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: XULMenuitemAccessible(aContent, aDoc) {
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mIsCheckbox = mContent->AsElement()->AttrValueIs(
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kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::checkbox, eCaseMatters);
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mType = eXULListItemType;
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}
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XULListitemAccessible::~XULListitemAccessible() {}
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Accessible* XULListitemAccessible::GetListAccessible() const {
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if (IsDefunct()) return nullptr;
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nsCOMPtr<nsIDOMXULSelectControlItemElement> listItem =
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Elm()->AsXULSelectControlItem();
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if (!listItem) return nullptr;
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RefPtr<dom::Element> listElement;
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listItem->GetControl(getter_AddRefs(listElement));
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if (!listElement) return nullptr;
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return mDoc->GetAccessible(listElement);
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListitemAccessible Accessible
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void XULListitemAccessible::Description(nsString& aDesc) {
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AccessibleWrap::Description(aDesc);
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListitemAccessible: Accessible
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/**
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* Get the name from GetXULName.
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*/
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ENameValueFlag XULListitemAccessible::NativeName(nsString& aName) const {
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return Accessible::NativeName(aName);
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}
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role XULListitemAccessible::NativeRole() const {
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Accessible* list = GetListAccessible();
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if (!list) {
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NS_ERROR("No list accessible for listitem accessible!");
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return roles::NOTHING;
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}
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if (list->Role() == roles::TABLE) return roles::ROW;
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if (mIsCheckbox) return roles::CHECK_RICH_OPTION;
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if (mParent && mParent->Role() == roles::COMBOBOX_LIST)
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return roles::COMBOBOX_OPTION;
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return roles::RICH_OPTION;
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}
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uint64_t XULListitemAccessible::NativeState() const {
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if (mIsCheckbox) return XULMenuitemAccessible::NativeState();
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uint64_t states = NativeInteractiveState();
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nsCOMPtr<nsIDOMXULSelectControlItemElement> listItem =
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Elm()->AsXULSelectControlItem();
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if (listItem) {
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bool isSelected;
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listItem->GetSelected(&isSelected);
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if (isSelected) states |= states::SELECTED;
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if (FocusMgr()->IsFocused(this)) states |= states::FOCUSED;
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}
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return states;
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}
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uint64_t XULListitemAccessible::NativeInteractiveState() const {
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return NativelyUnavailable() || (mParent && mParent->NativelyUnavailable())
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? states::UNAVAILABLE
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: states::FOCUSABLE | states::SELECTABLE;
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}
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void XULListitemAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName) {
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if (aIndex == eAction_Click && mIsCheckbox) {
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uint64_t states = NativeState();
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if (states & states::CHECKED)
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aName.AssignLiteral("uncheck");
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else
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aName.AssignLiteral("check");
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULListitemAccessible: Widgets
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Accessible* XULListitemAccessible::ContainerWidget() const { return Parent(); }
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