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6021c4755d
These are needed to support RemoteAccessible tables. Stuff specific to LocalAccessible is still in TableAccessible and TableCellAccessible, which now inherit from the new Base classes. Covariant return types have been used to minimise changes in LocalAccessible callers. Differential Revision: https://phabricator.services.mozilla.com/D141205
244 lines
8.4 KiB
C++
244 lines
8.4 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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#ifndef mozilla_a11y_HTMLTableAccessible_h__
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#define mozilla_a11y_HTMLTableAccessible_h__
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#include "HyperTextAccessibleWrap.h"
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#include "TableAccessible.h"
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#include "TableCellAccessible.h"
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class nsITableCellLayout;
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class nsTableCellFrame;
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class nsTableWrapperFrame;
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namespace mozilla {
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enum class TableSelectionMode : uint32_t;
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namespace a11y {
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/**
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* HTML table cell accessible (html:td).
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*/
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class HTMLTableCellAccessible : public HyperTextAccessibleWrap,
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public TableCellAccessible {
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public:
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HTMLTableCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// nsISupports
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NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTableCellAccessible,
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HyperTextAccessibleWrap)
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// LocalAccessible
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virtual TableCellAccessible* AsTableCell() override { return this; }
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virtual a11y::role NativeRole() const override;
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virtual uint64_t NativeState() const override;
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virtual uint64_t NativeInteractiveState() const override;
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virtual already_AddRefed<AccAttributes> NativeAttributes() override;
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virtual mozilla::a11y::GroupPos GroupPosition() override;
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protected:
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virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType,
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const nsAttrValue* aOldValue,
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uint64_t aOldState) override;
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// TableCellAccessible
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public:
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virtual TableAccessible* Table() const override;
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virtual uint32_t ColIdx() const override;
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virtual uint32_t RowIdx() const override;
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virtual uint32_t ColExtent() const override;
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virtual uint32_t RowExtent() const override;
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virtual void ColHeaderCells(nsTArray<Accessible*>* aCells) override;
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virtual void RowHeaderCells(nsTArray<Accessible*>* aCells) override;
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virtual bool Selected() override;
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protected:
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virtual ~HTMLTableCellAccessible() {}
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/**
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* Return nsITableCellLayout of the table cell frame.
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*/
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nsITableCellLayout* GetCellLayout() const;
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/**
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* Return the table cell frame.
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*/
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nsTableCellFrame* GetCellFrame() const;
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/**
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* Return row and column indices of the cell.
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*/
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nsresult GetCellIndexes(int32_t& aRowIdx, int32_t& aColIdx) const;
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};
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/**
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* HTML table row/column header accessible (html:th or html:td@scope).
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*/
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class HTMLTableHeaderCellAccessible : public HTMLTableCellAccessible {
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public:
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HTMLTableHeaderCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
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// LocalAccessible
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virtual a11y::role NativeRole() const override;
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};
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/**
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* HTML table row accessible (html:tr).
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*/
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class HTMLTableRowAccessible : public HyperTextAccessibleWrap {
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public:
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HTMLTableRowAccessible(nsIContent* aContent, DocAccessible* aDoc)
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: HyperTextAccessibleWrap(aContent, aDoc) {
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mType = eHTMLTableRowType;
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mGenericTypes |= eTableRow;
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}
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NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTableRowAccessible,
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HyperTextAccessibleWrap)
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// LocalAccessible
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virtual a11y::role NativeRole() const override;
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virtual mozilla::a11y::GroupPos GroupPosition() override;
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protected:
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virtual ~HTMLTableRowAccessible() {}
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// LocalAccessible
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virtual ENameValueFlag NativeName(nsString& aName) const override;
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};
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/**
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* HTML table accessible (html:table).
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*/
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// To turn on table debugging descriptions define SHOW_LAYOUT_HEURISTIC
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// This allow release trunk builds to be used by testers to refine the
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// data vs. layout heuristic
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// #define SHOW_LAYOUT_HEURISTIC
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class HTMLTableAccessible : public HyperTextAccessibleWrap,
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public TableAccessible {
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public:
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HTMLTableAccessible(nsIContent* aContent, DocAccessible* aDoc)
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: HyperTextAccessibleWrap(aContent, aDoc) {
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mType = eHTMLTableType;
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mGenericTypes |= eTable;
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}
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NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTableAccessible,
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HyperTextAccessibleWrap)
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// TableAccessible
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virtual LocalAccessible* Caption() const override;
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virtual void Summary(nsString& aSummary) override;
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virtual uint32_t ColCount() const override;
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virtual uint32_t RowCount() override;
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virtual LocalAccessible* CellAt(uint32_t aRowIndex,
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uint32_t aColumnIndex) override;
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virtual int32_t CellIndexAt(uint32_t aRowIdx, uint32_t aColIdx) override;
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virtual int32_t ColIndexAt(uint32_t aCellIdx) override;
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virtual int32_t RowIndexAt(uint32_t aCellIdx) override;
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virtual void RowAndColIndicesAt(uint32_t aCellIdx, int32_t* aRowIdx,
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int32_t* aColIdx) override;
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virtual uint32_t ColExtentAt(uint32_t aRowIdx, uint32_t aColIdx) override;
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virtual uint32_t RowExtentAt(uint32_t aRowIdx, uint32_t aColIdx) override;
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virtual bool IsColSelected(uint32_t aColIdx) override;
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virtual bool IsRowSelected(uint32_t aRowIdx) override;
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virtual bool IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx) override;
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virtual uint32_t SelectedCellCount() override;
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virtual uint32_t SelectedColCount() override;
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virtual uint32_t SelectedRowCount() override;
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virtual void SelectedCells(nsTArray<Accessible*>* aCells) override;
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virtual void SelectedCellIndices(nsTArray<uint32_t>* aCells) override;
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virtual void SelectedColIndices(nsTArray<uint32_t>* aCols) override;
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virtual void SelectedRowIndices(nsTArray<uint32_t>* aRows) override;
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virtual void SelectCol(uint32_t aColIdx) override;
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virtual void SelectRow(uint32_t aRowIdx) override;
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virtual void UnselectCol(uint32_t aColIdx) override;
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virtual void UnselectRow(uint32_t aRowIdx) override;
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virtual LocalAccessible* AsAccessible() override { return this; }
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// LocalAccessible
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virtual TableAccessible* AsTable() override { return this; }
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virtual void Description(nsString& aDescription) const override;
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virtual a11y::role NativeRole() const override;
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virtual uint64_t NativeState() const override;
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virtual already_AddRefed<AccAttributes> NativeAttributes() override;
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virtual Relation RelationByType(RelationType aRelationType) const override;
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virtual bool InsertChildAt(uint32_t aIndex, LocalAccessible* aChild) override;
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protected:
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virtual ~HTMLTableAccessible() {}
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// LocalAccessible
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virtual ENameValueFlag NativeName(nsString& aName) const override;
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virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType,
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const nsAttrValue* aOldValue,
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uint64_t aOldState) override;
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// HTMLTableAccessible
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/**
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* Add row or column to selection.
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*
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* @param aIndex [in] index of row or column to be selected
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* @param aTarget [in] indicates what should be selected, either row or
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* column (see nsFrameSelection)
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*/
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nsresult AddRowOrColumnToSelection(int32_t aIndex,
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TableSelectionMode aTarget);
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/**
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* Removes rows or columns at the given index or outside it from selection.
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*
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* @param aIndex [in] row or column index
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* @param aTarget [in] indicates whether row or column should unselected
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* @param aIsOuter [in] indicates whether all rows or column excepting
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* the given one should be unselected or the given one
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* should be unselected only
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*/
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nsresult RemoveRowsOrColumnsFromSelection(int32_t aIndex,
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TableSelectionMode aTarget,
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bool aIsOuter);
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#ifdef SHOW_LAYOUT_HEURISTIC
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nsString mLayoutHeuristic;
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#endif
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private:
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/**
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* Get table wrapper frame, or return null if there is no inner table.
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*/
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nsTableWrapperFrame* GetTableWrapperFrame() const;
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};
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/**
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* HTML caption accessible (html:caption).
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*/
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class HTMLCaptionAccessible : public HyperTextAccessibleWrap {
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public:
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HTMLCaptionAccessible(nsIContent* aContent, DocAccessible* aDoc)
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: HyperTextAccessibleWrap(aContent, aDoc) {
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mType = eHTMLCaptionType;
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}
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// LocalAccessible
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virtual a11y::role NativeRole() const override;
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virtual Relation RelationByType(RelationType aRelationType) const override;
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protected:
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virtual ~HTMLCaptionAccessible() {}
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};
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} // namespace a11y
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} // namespace mozilla
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#endif
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