mirror of
https://github.com/mozilla/gecko-dev.git
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826 lines
22 KiB
C++
826 lines
22 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 "XULTreeGridAccessibleWrap.h"
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#include "nsAccCache.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 "nsEventShell.h"
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#include "Relation.h"
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#include "Role.h"
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#include "States.h"
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#include "nsIBoxObject.h"
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#include "nsIMutableArray.h"
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#include "nsIPersistentProperties2.h"
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#include "nsITreeSelection.h"
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#include "nsComponentManagerUtils.h"
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using namespace mozilla::a11y;
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XULTreeGridAccessible::~XULTreeGridAccessible()
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridAccessible: Table
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uint32_t
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XULTreeGridAccessible::ColCount()
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{
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return nsCoreUtils::GetSensibleColumnCount(mTree);
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}
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uint32_t
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XULTreeGridAccessible::RowCount()
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{
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if (!mTreeView)
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return 0;
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int32_t rowCount = 0;
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mTreeView->GetRowCount(&rowCount);
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return rowCount >= 0 ? rowCount : 0;
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}
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uint32_t
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XULTreeGridAccessible::SelectedCellCount()
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{
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return SelectedRowCount() * ColCount();
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}
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uint32_t
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XULTreeGridAccessible::SelectedColCount()
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{
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// If all the row has been selected, then all the columns are selected,
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// because we can't select a column alone.
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uint32_t selectedRowCount = SelectedItemCount();
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return selectedRowCount > 0 && selectedRowCount == RowCount() ? ColCount() : 0;
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}
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uint32_t
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XULTreeGridAccessible::SelectedRowCount()
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{
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return SelectedItemCount();
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}
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void
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XULTreeGridAccessible::SelectedCells(nsTArray<Accessible*>* aCells)
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{
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uint32_t colCount = ColCount(), rowCount = RowCount();
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for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++) {
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if (IsRowSelected(rowIdx)) {
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for (uint32_t colIdx = 0; colIdx < colCount; colIdx++) {
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Accessible* cell = CellAt(rowIdx, colIdx);
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aCells->AppendElement(cell);
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}
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}
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}
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}
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void
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XULTreeGridAccessible::SelectedCellIndices(nsTArray<uint32_t>* aCells)
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{
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uint32_t colCount = ColCount(), rowCount = RowCount();
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for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++)
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if (IsRowSelected(rowIdx))
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for (uint32_t colIdx = 0; colIdx < colCount; colIdx++)
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aCells->AppendElement(rowIdx * colCount + colIdx);
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}
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void
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XULTreeGridAccessible::SelectedColIndices(nsTArray<uint32_t>* aCols)
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{
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if (RowCount() != SelectedRowCount())
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return;
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uint32_t colCount = ColCount();
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aCols->SetCapacity(colCount);
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for (uint32_t colIdx = 0; colIdx < colCount; colIdx++)
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aCols->AppendElement(colIdx);
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}
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void
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XULTreeGridAccessible::SelectedRowIndices(nsTArray<uint32_t>* aRows)
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{
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uint32_t rowCount = RowCount();
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for (uint32_t rowIdx = 0; rowIdx < rowCount; rowIdx++)
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if (IsRowSelected(rowIdx))
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aRows->AppendElement(rowIdx);
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}
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Accessible*
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XULTreeGridAccessible::CellAt(uint32_t aRowIndex, uint32_t aColumnIndex)
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{
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Accessible* row = GetTreeItemAccessible(aRowIndex);
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if (!row)
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return nullptr;
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nsCOMPtr<nsITreeColumn> column =
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nsCoreUtils::GetSensibleColumnAt(mTree, aColumnIndex);
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if (!column)
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return nullptr;
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nsRefPtr<XULTreeItemAccessibleBase> rowAcc = do_QueryObject(row);
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if (!rowAcc)
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return nullptr;
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return rowAcc->GetCellAccessible(column);
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}
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void
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XULTreeGridAccessible::ColDescription(uint32_t aColIdx, nsString& aDescription)
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{
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aDescription.Truncate();
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Accessible* treeColumns = Accessible::GetChildAt(0);
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if (treeColumns) {
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Accessible* treeColumnItem = treeColumns->GetChildAt(aColIdx);
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if (treeColumnItem)
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treeColumnItem->Name(aDescription);
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}
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}
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bool
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XULTreeGridAccessible::IsColSelected(uint32_t aColIdx)
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{
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// If all the row has been selected, then all the columns are selected.
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// Because we can't select a column alone.
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return SelectedItemCount() == RowCount();
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}
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bool
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XULTreeGridAccessible::IsRowSelected(uint32_t aRowIdx)
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{
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if (!mTreeView)
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return false;
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nsCOMPtr<nsITreeSelection> selection;
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nsresult rv = mTreeView->GetSelection(getter_AddRefs(selection));
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NS_ENSURE_SUCCESS(rv, false);
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bool isSelected = false;
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selection->IsSelected(aRowIdx, &isSelected);
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return isSelected;
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}
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bool
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XULTreeGridAccessible::IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx)
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{
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return IsRowSelected(aRowIdx);
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}
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void
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XULTreeGridAccessible::SelectRow(uint32_t aRowIdx)
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{
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if (!mTreeView)
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return;
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nsCOMPtr<nsITreeSelection> selection;
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mTreeView->GetSelection(getter_AddRefs(selection));
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NS_ASSERTION(selection, "GetSelection() Shouldn't fail!");
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selection->Select(aRowIdx);
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}
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void
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XULTreeGridAccessible::UnselectRow(uint32_t aRowIdx)
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{
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if (!mTreeView)
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return;
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nsCOMPtr<nsITreeSelection> selection;
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mTreeView->GetSelection(getter_AddRefs(selection));
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if (selection)
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selection->ClearRange(aRowIdx, aRowIdx);
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridAccessible: Accessible implementation
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role
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XULTreeGridAccessible::NativeRole()
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{
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nsCOMPtr<nsITreeColumns> treeColumns;
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mTree->GetColumns(getter_AddRefs(treeColumns));
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if (!treeColumns) {
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NS_ERROR("No treecolumns object for tree!");
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return roles::NOTHING;
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}
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nsCOMPtr<nsITreeColumn> primaryColumn;
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treeColumns->GetPrimaryColumn(getter_AddRefs(primaryColumn));
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return primaryColumn ? roles::TREE_TABLE : roles::TABLE;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridAccessible: XULTreeAccessible implementation
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already_AddRefed<Accessible>
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XULTreeGridAccessible::CreateTreeItemAccessible(int32_t aRow) const
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{
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nsRefPtr<Accessible> accessible =
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new XULTreeGridRowAccessible(mContent, mDoc,
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const_cast<XULTreeGridAccessible*>(this),
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mTree, mTreeView, aRow);
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return accessible.forget();
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridRowAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULTreeGridRowAccessible::
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XULTreeGridRowAccessible(nsIContent* aContent, DocAccessible* aDoc,
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Accessible* aTreeAcc, nsITreeBoxObject* aTree,
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nsITreeView* aTreeView, int32_t aRow) :
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XULTreeItemAccessibleBase(aContent, aDoc, aTreeAcc, aTree, aTreeView, aRow),
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mAccessibleCache(kDefaultTreeCacheLength)
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{
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mGenericTypes |= eTableRow;
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}
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XULTreeGridRowAccessible::~XULTreeGridRowAccessible()
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridRowAccessible: nsISupports and cycle collection implementation
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NS_IMPL_CYCLE_COLLECTION_INHERITED(XULTreeGridRowAccessible,
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XULTreeItemAccessibleBase,
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mAccessibleCache)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(XULTreeGridRowAccessible)
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NS_INTERFACE_MAP_END_INHERITING(XULTreeItemAccessibleBase)
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NS_IMPL_ADDREF_INHERITED(XULTreeGridRowAccessible,
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XULTreeItemAccessibleBase)
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NS_IMPL_RELEASE_INHERITED(XULTreeGridRowAccessible,
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XULTreeItemAccessibleBase)
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridRowAccessible: Accessible implementation
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void
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XULTreeGridRowAccessible::Shutdown()
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{
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ClearCache(mAccessibleCache);
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XULTreeItemAccessibleBase::Shutdown();
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}
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role
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XULTreeGridRowAccessible::NativeRole()
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{
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return roles::ROW;
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}
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ENameValueFlag
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XULTreeGridRowAccessible::Name(nsString& aName)
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{
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aName.Truncate();
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// XXX: the row name sholdn't be a concatenation of cell names (bug 664384).
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nsCOMPtr<nsITreeColumn> column = nsCoreUtils::GetFirstSensibleColumn(mTree);
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while (column) {
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if (!aName.IsEmpty())
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aName.Append(' ');
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nsAutoString cellName;
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GetCellName(column, cellName);
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aName.Append(cellName);
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column = nsCoreUtils::GetNextSensibleColumn(column);
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}
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return eNameOK;
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}
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Accessible*
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XULTreeGridRowAccessible::ChildAtPoint(int32_t aX, int32_t aY,
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EWhichChildAtPoint aWhichChild)
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{
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nsIFrame *frame = GetFrame();
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if (!frame)
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return nullptr;
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nsPresContext *presContext = frame->PresContext();
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nsIPresShell* presShell = presContext->PresShell();
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nsIFrame *rootFrame = presShell->GetRootFrame();
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NS_ENSURE_TRUE(rootFrame, nullptr);
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nsIntRect rootRect = rootFrame->GetScreenRect();
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int32_t clientX = presContext->DevPixelsToIntCSSPixels(aX) - rootRect.x;
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int32_t clientY = presContext->DevPixelsToIntCSSPixels(aY) - rootRect.y;
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int32_t row = -1;
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nsCOMPtr<nsITreeColumn> column;
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nsAutoString childEltUnused;
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mTree->GetCellAt(clientX, clientY, &row, getter_AddRefs(column),
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childEltUnused);
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// Return if we failed to find tree cell in the row for the given point.
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if (row != mRow || !column)
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return nullptr;
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return GetCellAccessible(column);
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}
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Accessible*
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XULTreeGridRowAccessible::GetChildAt(uint32_t aIndex) const
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{
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if (IsDefunct())
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return nullptr;
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nsCOMPtr<nsITreeColumn> column =
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nsCoreUtils::GetSensibleColumnAt(mTree, aIndex);
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if (!column)
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return nullptr;
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return GetCellAccessible(column);
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}
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uint32_t
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XULTreeGridRowAccessible::ChildCount() const
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{
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return nsCoreUtils::GetSensibleColumnCount(mTree);
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridRowAccessible: XULTreeItemAccessibleBase implementation
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XULTreeGridCellAccessible*
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XULTreeGridRowAccessible::GetCellAccessible(nsITreeColumn* aColumn) const
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{
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NS_PRECONDITION(aColumn, "No tree column!");
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void* key = static_cast<void*>(aColumn);
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XULTreeGridCellAccessible* cachedCell = mAccessibleCache.GetWeak(key);
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if (cachedCell)
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return cachedCell;
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nsRefPtr<XULTreeGridCellAccessible> cell =
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new XULTreeGridCellAccessibleWrap(mContent, mDoc,
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const_cast<XULTreeGridRowAccessible*>(this),
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mTree, mTreeView, mRow, aColumn);
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mAccessibleCache.Put(key, cell);
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Document()->BindToDocument(cell, nullptr);
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return cell;
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}
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void
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XULTreeGridRowAccessible::RowInvalidated(int32_t aStartColIdx,
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int32_t aEndColIdx)
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{
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nsCOMPtr<nsITreeColumns> treeColumns;
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mTree->GetColumns(getter_AddRefs(treeColumns));
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if (!treeColumns)
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return;
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bool nameChanged = false;
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for (int32_t colIdx = aStartColIdx; colIdx <= aEndColIdx; ++colIdx) {
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nsCOMPtr<nsITreeColumn> column;
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treeColumns->GetColumnAt(colIdx, getter_AddRefs(column));
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if (column && !nsCoreUtils::IsColumnHidden(column)) {
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XULTreeGridCellAccessible* cell = GetCellAccessible(column);
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if (cell)
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nameChanged |= cell->CellInvalidated();
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}
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}
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if (nameChanged)
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nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_NAME_CHANGE, this);
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridRowAccessible: Accessible protected implementation
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void
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XULTreeGridRowAccessible::CacheChildren()
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridCellAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULTreeGridCellAccessible::
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XULTreeGridCellAccessible(nsIContent* aContent, DocAccessible* aDoc,
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XULTreeGridRowAccessible* aRowAcc,
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nsITreeBoxObject* aTree, nsITreeView* aTreeView,
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int32_t aRow, nsITreeColumn* aColumn) :
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LeafAccessible(aContent, aDoc), mTree(aTree),
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mTreeView(aTreeView), mRow(aRow), mColumn(aColumn)
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{
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mParent = aRowAcc;
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mStateFlags |= eSharedNode;
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mGenericTypes |= eTableCell;
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NS_ASSERTION(mTreeView, "mTreeView is null");
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int16_t type = -1;
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mColumn->GetType(&type);
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if (type == nsITreeColumn::TYPE_CHECKBOX)
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mTreeView->GetCellValue(mRow, mColumn, mCachedTextEquiv);
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else
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mTreeView->GetCellText(mRow, mColumn, mCachedTextEquiv);
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}
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XULTreeGridCellAccessible::~XULTreeGridCellAccessible()
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridCellAccessible: nsISupports implementation
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NS_IMPL_CYCLE_COLLECTION_INHERITED(XULTreeGridCellAccessible, LeafAccessible,
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mTree, mColumn)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(XULTreeGridCellAccessible)
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NS_INTERFACE_MAP_END_INHERITING(LeafAccessible)
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NS_IMPL_ADDREF_INHERITED(XULTreeGridCellAccessible, LeafAccessible)
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NS_IMPL_RELEASE_INHERITED(XULTreeGridCellAccessible, LeafAccessible)
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////////////////////////////////////////////////////////////////////////////////
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// XULTreeGridCellAccessible: Accessible
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Accessible*
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XULTreeGridCellAccessible::FocusedChild()
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{
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return nullptr;
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}
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ENameValueFlag
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XULTreeGridCellAccessible::Name(nsString& aName)
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{
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aName.Truncate();
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if (!mTreeView)
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return eNameOK;
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mTreeView->GetCellText(mRow, mColumn, aName);
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// If there is still no name try the cell value:
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// This is for graphical cells. We need tree/table view implementors to implement
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// FooView::GetCellValue to return a meaningful string for cases where there is
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// something shown in the cell (non-text) such as a star icon; in which case
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// GetCellValue for that cell would return "starred" or "flagged" for example.
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if (aName.IsEmpty())
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mTreeView->GetCellValue(mRow, mColumn, aName);
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return eNameOK;
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}
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nsIntRect
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XULTreeGridCellAccessible::Bounds() const
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{
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// Get bounds for tree cell and add x and y of treechildren element to
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// x and y of the cell.
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nsCOMPtr<nsIBoxObject> boxObj = nsCoreUtils::GetTreeBodyBoxObject(mTree);
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if (!boxObj)
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return nsIntRect();
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int32_t x = 0, y = 0, width = 0, height = 0;
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nsresult rv = mTree->GetCoordsForCellItem(mRow, mColumn,
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NS_LITERAL_STRING("cell"),
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&x, &y, &width, &height);
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if (NS_FAILED(rv))
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return nsIntRect();
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int32_t tcX = 0, tcY = 0;
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boxObj->GetScreenX(&tcX);
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boxObj->GetScreenY(&tcY);
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x += tcX;
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y += tcY;
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nsPresContext* presContext = mDoc->PresContext();
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return nsIntRect(presContext->CSSPixelsToDevPixels(x),
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presContext->CSSPixelsToDevPixels(y),
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presContext->CSSPixelsToDevPixels(width),
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presContext->CSSPixelsToDevPixels(height));
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}
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uint8_t
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XULTreeGridCellAccessible::ActionCount()
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{
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bool isCycler = false;
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mColumn->GetCycler(&isCycler);
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if (isCycler)
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return 1;
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int16_t type;
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mColumn->GetType(&type);
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if (type == nsITreeColumn::TYPE_CHECKBOX && IsEditable())
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return 1;
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return 0;
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}
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void
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XULTreeGridCellAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
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{
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aName.Truncate();
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if (aIndex != eAction_Click || !mTreeView)
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return;
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bool isCycler = false;
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mColumn->GetCycler(&isCycler);
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if (isCycler) {
|
|
aName.AssignLiteral("cycle");
|
|
return;
|
|
}
|
|
|
|
int16_t type = 0;
|
|
mColumn->GetType(&type);
|
|
if (type == nsITreeColumn::TYPE_CHECKBOX && IsEditable()) {
|
|
nsAutoString value;
|
|
mTreeView->GetCellValue(mRow, mColumn, value);
|
|
if (value.EqualsLiteral("true"))
|
|
aName.AssignLiteral("uncheck");
|
|
else
|
|
aName.AssignLiteral("check");
|
|
}
|
|
}
|
|
|
|
bool
|
|
XULTreeGridCellAccessible::DoAction(uint8_t aIndex)
|
|
{
|
|
if (aIndex != eAction_Click)
|
|
return false;
|
|
|
|
bool isCycler = false;
|
|
mColumn->GetCycler(&isCycler);
|
|
if (isCycler) {
|
|
DoCommand();
|
|
return true;
|
|
}
|
|
|
|
int16_t type;
|
|
mColumn->GetType(&type);
|
|
if (type == nsITreeColumn::TYPE_CHECKBOX && IsEditable()) {
|
|
DoCommand();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// XULTreeGridCellAccessible: TableCell
|
|
|
|
TableAccessible*
|
|
XULTreeGridCellAccessible::Table() const
|
|
{
|
|
Accessible* grandParent = mParent->Parent();
|
|
if (grandParent)
|
|
return grandParent->AsTable();
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
uint32_t
|
|
XULTreeGridCellAccessible::ColIdx() const
|
|
{
|
|
uint32_t colIdx = 0;
|
|
nsCOMPtr<nsITreeColumn> column = mColumn;
|
|
while ((column = nsCoreUtils::GetPreviousSensibleColumn(column)))
|
|
colIdx++;
|
|
|
|
return colIdx;
|
|
}
|
|
|
|
uint32_t
|
|
XULTreeGridCellAccessible::RowIdx() const
|
|
{
|
|
return mRow;
|
|
}
|
|
|
|
void
|
|
XULTreeGridCellAccessible::ColHeaderCells(nsTArray<Accessible*>* aHeaderCells)
|
|
{
|
|
nsCOMPtr<nsIDOMElement> columnElm;
|
|
mColumn->GetElement(getter_AddRefs(columnElm));
|
|
|
|
nsCOMPtr<nsIContent> columnContent(do_QueryInterface(columnElm));
|
|
Accessible* headerCell = mDoc->GetAccessible(columnContent);
|
|
if (headerCell)
|
|
aHeaderCells->AppendElement(headerCell);
|
|
}
|
|
|
|
bool
|
|
XULTreeGridCellAccessible::Selected()
|
|
{
|
|
nsCOMPtr<nsITreeSelection> selection;
|
|
nsresult rv = mTreeView->GetSelection(getter_AddRefs(selection));
|
|
NS_ENSURE_SUCCESS(rv, false);
|
|
|
|
bool selected = false;
|
|
selection->IsSelected(mRow, &selected);
|
|
return selected;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// XULTreeGridCellAccessible: Accessible public implementation
|
|
|
|
already_AddRefed<nsIPersistentProperties>
|
|
XULTreeGridCellAccessible::NativeAttributes()
|
|
{
|
|
nsCOMPtr<nsIPersistentProperties> attributes =
|
|
do_CreateInstance(NS_PERSISTENTPROPERTIES_CONTRACTID);
|
|
|
|
// "table-cell-index" attribute
|
|
TableAccessible* table = Table();
|
|
if (!table)
|
|
return attributes.forget();
|
|
|
|
nsAutoString stringIdx;
|
|
stringIdx.AppendInt(table->CellIndexAt(mRow, ColIdx()));
|
|
nsAccUtils::SetAccAttr(attributes, nsGkAtoms::tableCellIndex, stringIdx);
|
|
|
|
// "cycles" attribute
|
|
bool isCycler = false;
|
|
nsresult rv = mColumn->GetCycler(&isCycler);
|
|
if (NS_SUCCEEDED(rv) && isCycler)
|
|
nsAccUtils::SetAccAttr(attributes, nsGkAtoms::cycles,
|
|
NS_LITERAL_STRING("true"));
|
|
|
|
return attributes.forget();
|
|
}
|
|
|
|
role
|
|
XULTreeGridCellAccessible::NativeRole()
|
|
{
|
|
return roles::GRID_CELL;
|
|
}
|
|
|
|
uint64_t
|
|
XULTreeGridCellAccessible::NativeState()
|
|
{
|
|
if (!mTreeView)
|
|
return states::DEFUNCT;
|
|
|
|
// selectable/selected state
|
|
uint64_t states = states::SELECTABLE; // keep in sync with NativeInteractiveState
|
|
|
|
nsCOMPtr<nsITreeSelection> selection;
|
|
mTreeView->GetSelection(getter_AddRefs(selection));
|
|
if (selection) {
|
|
bool isSelected = false;
|
|
selection->IsSelected(mRow, &isSelected);
|
|
if (isSelected)
|
|
states |= states::SELECTED;
|
|
}
|
|
|
|
// checked state
|
|
int16_t type;
|
|
mColumn->GetType(&type);
|
|
if (type == nsITreeColumn::TYPE_CHECKBOX) {
|
|
states |= states::CHECKABLE;
|
|
nsAutoString checked;
|
|
mTreeView->GetCellValue(mRow, mColumn, checked);
|
|
if (checked.EqualsIgnoreCase("true"))
|
|
states |= states::CHECKED;
|
|
}
|
|
|
|
return states;
|
|
}
|
|
|
|
uint64_t
|
|
XULTreeGridCellAccessible::NativeInteractiveState() const
|
|
{
|
|
return states::SELECTABLE;
|
|
}
|
|
|
|
int32_t
|
|
XULTreeGridCellAccessible::IndexInParent() const
|
|
{
|
|
return ColIdx();
|
|
}
|
|
|
|
Relation
|
|
XULTreeGridCellAccessible::RelationByType(RelationType aType)
|
|
{
|
|
return Relation();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// XULTreeGridCellAccessible: public implementation
|
|
|
|
bool
|
|
XULTreeGridCellAccessible::CellInvalidated()
|
|
{
|
|
|
|
nsAutoString textEquiv;
|
|
|
|
int16_t type;
|
|
mColumn->GetType(&type);
|
|
if (type == nsITreeColumn::TYPE_CHECKBOX) {
|
|
mTreeView->GetCellValue(mRow, mColumn, textEquiv);
|
|
if (mCachedTextEquiv != textEquiv) {
|
|
bool isEnabled = textEquiv.EqualsLiteral("true");
|
|
nsRefPtr<AccEvent> accEvent =
|
|
new AccStateChangeEvent(this, states::CHECKED, isEnabled);
|
|
nsEventShell::FireEvent(accEvent);
|
|
|
|
mCachedTextEquiv = textEquiv;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
mTreeView->GetCellText(mRow, mColumn, textEquiv);
|
|
if (mCachedTextEquiv != textEquiv) {
|
|
nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_NAME_CHANGE, this);
|
|
mCachedTextEquiv = textEquiv;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// XULTreeGridCellAccessible: Accessible protected implementation
|
|
|
|
Accessible*
|
|
XULTreeGridCellAccessible::GetSiblingAtOffset(int32_t aOffset,
|
|
nsresult* aError) const
|
|
{
|
|
if (aError)
|
|
*aError = NS_OK; // fail peacefully
|
|
|
|
nsCOMPtr<nsITreeColumn> columnAtOffset(mColumn), column;
|
|
if (aOffset < 0) {
|
|
for (int32_t index = aOffset; index < 0 && columnAtOffset; index++) {
|
|
column = nsCoreUtils::GetPreviousSensibleColumn(columnAtOffset);
|
|
column.swap(columnAtOffset);
|
|
}
|
|
} else {
|
|
for (int32_t index = aOffset; index > 0 && columnAtOffset; index--) {
|
|
column = nsCoreUtils::GetNextSensibleColumn(columnAtOffset);
|
|
column.swap(columnAtOffset);
|
|
}
|
|
}
|
|
|
|
if (!columnAtOffset)
|
|
return nullptr;
|
|
|
|
nsRefPtr<XULTreeItemAccessibleBase> rowAcc = do_QueryObject(Parent());
|
|
return rowAcc->GetCellAccessible(columnAtOffset);
|
|
}
|
|
|
|
void
|
|
XULTreeGridCellAccessible::DispatchClickEvent(nsIContent* aContent,
|
|
uint32_t aActionIndex)
|
|
{
|
|
if (IsDefunct())
|
|
return;
|
|
|
|
nsCoreUtils::DispatchClickEvent(mTree, mRow, mColumn);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// XULTreeGridCellAccessible: protected implementation
|
|
|
|
bool
|
|
XULTreeGridCellAccessible::IsEditable() const
|
|
{
|
|
|
|
// XXX: logic corresponds to tree.xml, it's preferable to have interface
|
|
// method to check it.
|
|
bool isEditable = false;
|
|
nsresult rv = mTreeView->IsEditable(mRow, mColumn, &isEditable);
|
|
if (NS_FAILED(rv) || !isEditable)
|
|
return false;
|
|
|
|
nsCOMPtr<nsIDOMElement> columnElm;
|
|
mColumn->GetElement(getter_AddRefs(columnElm));
|
|
if (!columnElm)
|
|
return false;
|
|
|
|
nsCOMPtr<nsIContent> columnContent(do_QueryInterface(columnElm));
|
|
if (!columnContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::editable,
|
|
nsGkAtoms::_true,
|
|
eCaseMatters))
|
|
return false;
|
|
|
|
return mContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::editable,
|
|
nsGkAtoms::_true, eCaseMatters);
|
|
}
|