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Diffstat (limited to 'accessible/xul/XULListboxAccessible.cpp')
| -rw-r--r-- | accessible/xul/XULListboxAccessible.cpp | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/accessible/xul/XULListboxAccessible.cpp b/accessible/xul/XULListboxAccessible.cpp new file mode 100644 index 0000000000..6d2a9e92c0 --- /dev/null +++ b/accessible/xul/XULListboxAccessible.cpp @@ -0,0 +1,506 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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 "XULListboxAccessible.h" + +#include "LocalAccessible-inl.h" +#include "nsAccessibilityService.h" +#include "nsAccUtils.h" +#include "DocAccessible.h" +#include "Role.h" +#include "States.h" + +#include "nsComponentManagerUtils.h" +#include "nsIAutoCompletePopup.h" +#include "nsIDOMXULMenuListElement.h" +#include "nsIDOMXULMultSelectCntrlEl.h" +#include "nsIDOMXULSelectCntrlItemEl.h" +#include "nsINodeList.h" + +using namespace mozilla::a11y; + +//////////////////////////////////////////////////////////////////////////////// +// XULColumAccessible +//////////////////////////////////////////////////////////////////////////////// + +XULColumAccessible::XULColumAccessible(nsIContent* aContent, + DocAccessible* aDoc) + : AccessibleWrap(aContent, aDoc) {} + +role XULColumAccessible::NativeRole() const { return roles::LIST; } + +uint64_t XULColumAccessible::NativeState() const { return states::READONLY; } + +//////////////////////////////////////////////////////////////////////////////// +// XULColumnItemAccessible +//////////////////////////////////////////////////////////////////////////////// + +XULColumnItemAccessible::XULColumnItemAccessible(nsIContent* aContent, + DocAccessible* aDoc) + : LeafAccessible(aContent, aDoc) {} + +role XULColumnItemAccessible::NativeRole() const { return roles::COLUMNHEADER; } + +uint64_t XULColumnItemAccessible::NativeState() const { + return states::READONLY; +} + +bool XULColumnItemAccessible::HasPrimaryAction() const { return true; } + +void XULColumnItemAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName) { + if (aIndex == eAction_Click) aName.AssignLiteral("click"); +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListboxAccessible +//////////////////////////////////////////////////////////////////////////////// + +XULListboxAccessible::XULListboxAccessible(nsIContent* aContent, + DocAccessible* aDoc) + : XULSelectControlAccessible(aContent, aDoc) { + dom::Element* parentEl = mContent->GetParentElement(); + if (parentEl) { + nsCOMPtr<nsIAutoCompletePopup> autoCompletePopupElm = + parentEl->AsAutoCompletePopup(); + if (autoCompletePopupElm) mGenericTypes |= eAutoCompletePopup; + } + + if (IsMulticolumn()) mGenericTypes |= eTable; +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListboxAccessible: LocalAccessible + +uint64_t XULListboxAccessible::NativeState() const { + // As a XULListboxAccessible we can have the following states: + // FOCUSED, READONLY, FOCUSABLE + + // Get focus status from base class + uint64_t states = LocalAccessible::NativeState(); + + // see if we are multiple select if so set ourselves as such + + if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::seltype, + nsGkAtoms::multiple, eCaseMatters)) { + states |= states::MULTISELECTABLE | states::EXTSELECTABLE; + } + + return states; +} + +role XULListboxAccessible::NativeRole() const { + // A richlistbox is used with the new autocomplete URL bar, and has a parent + // popup <panel>. + if (mContent->GetParent() && + mContent->GetParent()->IsXULElement(nsGkAtoms::panel)) { + return roles::COMBOBOX_LIST; + } + + return IsMulticolumn() ? roles::TABLE : roles::LISTBOX; +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListboxAccessible: Table + +uint32_t XULListboxAccessible::ColCount() const { return 0; } + +uint32_t XULListboxAccessible::RowCount() { + nsCOMPtr<nsIDOMXULSelectControlElement> element = Elm()->AsXULSelectControl(); + + uint32_t itemCount = 0; + if (element) element->GetItemCount(&itemCount); + + return itemCount; +} + +LocalAccessible* XULListboxAccessible::CellAt(uint32_t aRowIndex, + uint32_t aColumnIndex) { + nsCOMPtr<nsIDOMXULSelectControlElement> control = Elm()->AsXULSelectControl(); + NS_ENSURE_TRUE(control, nullptr); + + RefPtr<dom::Element> element; + control->GetItemAtIndex(aRowIndex, getter_AddRefs(element)); + if (!element) return nullptr; + + LocalAccessible* row = mDoc->GetAccessible(element); + NS_ENSURE_TRUE(row, nullptr); + + return row->LocalChildAt(aColumnIndex); +} + +bool XULListboxAccessible::IsColSelected(uint32_t aColIdx) { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + int32_t selectedrowCount = 0; + nsresult rv = control->GetSelectedCount(&selectedrowCount); + NS_ENSURE_SUCCESS(rv, false); + + return selectedrowCount == static_cast<int32_t>(RowCount()); +} + +bool XULListboxAccessible::IsRowSelected(uint32_t aRowIdx) { + nsCOMPtr<nsIDOMXULSelectControlElement> control = Elm()->AsXULSelectControl(); + NS_ASSERTION(control, "Doesn't implement nsIDOMXULSelectControlElement."); + + RefPtr<dom::Element> element; + nsresult rv = control->GetItemAtIndex(aRowIdx, getter_AddRefs(element)); + NS_ENSURE_SUCCESS(rv, false); + if (!element) { + return false; + } + + nsCOMPtr<nsIDOMXULSelectControlItemElement> item = + element->AsXULSelectControlItem(); + + bool isSelected = false; + item->GetSelected(&isSelected); + return isSelected; +} + +bool XULListboxAccessible::IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx) { + return IsRowSelected(aRowIdx); +} + +uint32_t XULListboxAccessible::SelectedCellCount() { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + nsCOMPtr<nsINodeList> selectedItems; + control->GetSelectedItems(getter_AddRefs(selectedItems)); + if (!selectedItems) return 0; + + uint32_t selectedItemsCount = selectedItems->Length(); + + return selectedItemsCount * ColCount(); +} + +uint32_t XULListboxAccessible::SelectedColCount() { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + int32_t selectedRowCount = 0; + nsresult rv = control->GetSelectedCount(&selectedRowCount); + NS_ENSURE_SUCCESS(rv, 0); + + return selectedRowCount > 0 && + selectedRowCount == static_cast<int32_t>(RowCount()) + ? ColCount() + : 0; +} + +uint32_t XULListboxAccessible::SelectedRowCount() { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + int32_t selectedRowCount = 0; + nsresult rv = control->GetSelectedCount(&selectedRowCount); + NS_ENSURE_SUCCESS(rv, 0); + + return selectedRowCount >= 0 ? selectedRowCount : 0; +} + +void XULListboxAccessible::SelectedCells(nsTArray<Accessible*>* aCells) { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + nsCOMPtr<nsINodeList> selectedItems; + control->GetSelectedItems(getter_AddRefs(selectedItems)); + if (!selectedItems) return; + + uint32_t selectedItemsCount = selectedItems->Length(); + + for (uint32_t index = 0; index < selectedItemsCount; index++) { + nsIContent* itemContent = selectedItems->Item(index); + LocalAccessible* item = mDoc->GetAccessible(itemContent); + + if (item) { + uint32_t cellCount = item->ChildCount(); + for (uint32_t cellIdx = 0; cellIdx < cellCount; cellIdx++) { + LocalAccessible* cell = mChildren[cellIdx]; + if (cell->Role() == roles::CELL) aCells->AppendElement(cell); + } + } + } +} + +void XULListboxAccessible::SelectedCellIndices(nsTArray<uint32_t>* aCells) { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + nsCOMPtr<nsINodeList> selectedItems; + control->GetSelectedItems(getter_AddRefs(selectedItems)); + if (!selectedItems) return; + + uint32_t selectedItemsCount = selectedItems->Length(); + + uint32_t colCount = ColCount(); + aCells->SetCapacity(selectedItemsCount * colCount); + aCells->AppendElements(selectedItemsCount * colCount); + + for (uint32_t selItemsIdx = 0, cellsIdx = 0; selItemsIdx < selectedItemsCount; + selItemsIdx++) { + nsIContent* itemContent = selectedItems->Item(selItemsIdx); + + nsCOMPtr<nsIDOMXULSelectControlItemElement> item = + itemContent->AsElement()->AsXULSelectControlItem(); + if (item) { + int32_t itemIdx = -1; + control->GetIndexOfItem(item, &itemIdx); + if (itemIdx >= 0) { + for (uint32_t colIdx = 0; colIdx < colCount; colIdx++, cellsIdx++) { + aCells->ElementAt(cellsIdx) = itemIdx * colCount + colIdx; + } + } + } + } +} + +void XULListboxAccessible::SelectedColIndices(nsTArray<uint32_t>* aCols) { + uint32_t selColCount = SelectedColCount(); + aCols->SetCapacity(selColCount); + + for (uint32_t colIdx = 0; colIdx < selColCount; colIdx++) { + aCols->AppendElement(colIdx); + } +} + +void XULListboxAccessible::SelectedRowIndices(nsTArray<uint32_t>* aRows) { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + nsCOMPtr<nsINodeList> selectedItems; + control->GetSelectedItems(getter_AddRefs(selectedItems)); + if (!selectedItems) return; + + uint32_t rowCount = selectedItems->Length(); + + if (!rowCount) return; + + aRows->SetCapacity(rowCount); + aRows->AppendElements(rowCount); + + for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) { + nsIContent* itemContent = selectedItems->Item(rowIdx); + nsCOMPtr<nsIDOMXULSelectControlItemElement> item = + itemContent->AsElement()->AsXULSelectControlItem(); + + if (item) { + int32_t itemIdx = -1; + control->GetIndexOfItem(item, &itemIdx); + if (itemIdx >= 0) aRows->ElementAt(rowIdx) = itemIdx; + } + } +} + +void XULListboxAccessible::SelectRow(uint32_t aRowIdx) { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + RefPtr<dom::Element> item; + control->GetItemAtIndex(aRowIdx, getter_AddRefs(item)); + if (!item) { + return; + } + + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm = + item->AsXULSelectControlItem(); + control->SelectItem(itemElm); +} + +void XULListboxAccessible::UnselectRow(uint32_t aRowIdx) { + nsCOMPtr<nsIDOMXULMultiSelectControlElement> control = + Elm()->AsXULMultiSelectControl(); + NS_ASSERTION(control, + "Doesn't implement nsIDOMXULMultiSelectControlElement."); + + RefPtr<dom::Element> item; + control->GetItemAtIndex(aRowIdx, getter_AddRefs(item)); + if (!item) { + return; + } + + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm = + item->AsXULSelectControlItem(); + control->RemoveItemFromSelection(itemElm); +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListboxAccessible: Widgets + +bool XULListboxAccessible::IsWidget() const { return true; } + +bool XULListboxAccessible::IsActiveWidget() const { + if (IsAutoCompletePopup()) { + nsIContent* parentContent = mContent->GetParent(); + if (parentContent) { + nsCOMPtr<nsIAutoCompletePopup> autoCompletePopupElm = + parentContent->AsElement()->AsAutoCompletePopup(); + if (autoCompletePopupElm) { + bool isOpen = false; + autoCompletePopupElm->GetPopupOpen(&isOpen); + return isOpen; + } + } + } + return FocusMgr()->HasDOMFocus(mContent); +} + +bool XULListboxAccessible::AreItemsOperable() const { + if (IsAutoCompletePopup()) { + nsIContent* parentContent = mContent->GetParent(); + if (parentContent) { + nsCOMPtr<nsIAutoCompletePopup> autoCompletePopupElm = + parentContent->AsElement()->AsAutoCompletePopup(); + if (autoCompletePopupElm) { + bool isOpen = false; + autoCompletePopupElm->GetPopupOpen(&isOpen); + return isOpen; + } + } + } + return true; +} + +LocalAccessible* XULListboxAccessible::ContainerWidget() const { + if (IsAutoCompletePopup() && mContent->GetParent()) { + // This works for XUL autocompletes. It doesn't work for HTML forms + // autocomplete because of potential crossprocess calls (when autocomplete + // lives in content process while popup lives in chrome process). If that's + // a problem then rethink Widgets interface. + nsCOMPtr<nsIDOMXULMenuListElement> menuListElm = + mContent->GetParent()->AsElement()->AsXULMenuList(); + if (menuListElm) { + RefPtr<mozilla::dom::Element> inputElm; + menuListElm->GetInputField(getter_AddRefs(inputElm)); + if (inputElm) { + LocalAccessible* input = mDoc->GetAccessible(inputElm); + return input ? input->ContainerWidget() : nullptr; + } + } + } + return nullptr; +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListitemAccessible +//////////////////////////////////////////////////////////////////////////////// + +XULListitemAccessible::XULListitemAccessible(nsIContent* aContent, + DocAccessible* aDoc) + : XULMenuitemAccessible(aContent, aDoc) { + mIsCheckbox = mContent->AsElement()->AttrValueIs( + kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::checkbox, eCaseMatters); + mType = eXULListItemType; +} + +XULListitemAccessible::~XULListitemAccessible() {} + +LocalAccessible* XULListitemAccessible::GetListAccessible() const { + if (IsDefunct()) return nullptr; + + nsCOMPtr<nsIDOMXULSelectControlItemElement> listItem = + Elm()->AsXULSelectControlItem(); + if (!listItem) return nullptr; + + RefPtr<dom::Element> listElement; + listItem->GetControl(getter_AddRefs(listElement)); + if (!listElement) return nullptr; + + return mDoc->GetAccessible(listElement); +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListitemAccessible LocalAccessible + +void XULListitemAccessible::Description(nsString& aDesc) const { + AccessibleWrap::Description(aDesc); +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListitemAccessible: LocalAccessible + +/** + * Get the name from GetXULName. + */ +ENameValueFlag XULListitemAccessible::NativeName(nsString& aName) const { + return LocalAccessible::NativeName(aName); +} + +role XULListitemAccessible::NativeRole() const { + LocalAccessible* list = GetListAccessible(); + if (!list) { + NS_ERROR("No list accessible for listitem accessible!"); + return roles::NOTHING; + } + + if (list->Role() == roles::TABLE) return roles::ROW; + + if (mIsCheckbox) return roles::CHECK_RICH_OPTION; + + if (mParent && mParent->Role() == roles::COMBOBOX_LIST) { + return roles::COMBOBOX_OPTION; + } + + return roles::RICH_OPTION; +} + +uint64_t XULListitemAccessible::NativeState() const { + if (mIsCheckbox) return XULMenuitemAccessible::NativeState(); + + uint64_t states = NativeInteractiveState(); + + nsCOMPtr<nsIDOMXULSelectControlItemElement> listItem = + Elm()->AsXULSelectControlItem(); + if (listItem) { + bool isSelected; + listItem->GetSelected(&isSelected); + if (isSelected) states |= states::SELECTED; + + if (FocusMgr()->IsFocused(this)) states |= states::FOCUSED; + } + + return states; +} + +uint64_t XULListitemAccessible::NativeInteractiveState() const { + return NativelyUnavailable() || (mParent && mParent->NativelyUnavailable()) + ? states::UNAVAILABLE + : states::FOCUSABLE | states::SELECTABLE; +} + +void XULListitemAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName) { + if (aIndex == eAction_Click && mIsCheckbox) { + uint64_t states = NativeState(); + if (states & states::CHECKED) { + aName.AssignLiteral("uncheck"); + } else { + aName.AssignLiteral("check"); + } + } +} + +//////////////////////////////////////////////////////////////////////////////// +// XULListitemAccessible: Widgets + +LocalAccessible* XULListitemAccessible::ContainerWidget() const { + return LocalParent(); +} |