зеркало из https://github.com/mozilla/gecko-dev.git
244 строки
8.4 KiB
C++
244 строки
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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