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Diffstat (limited to 'accessible/xul/XULTreeGridAccessible.h')
| -rw-r--r-- | accessible/xul/XULTreeGridAccessible.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/accessible/xul/XULTreeGridAccessible.h b/accessible/xul/XULTreeGridAccessible.h new file mode 100644 index 000000000..6a6bd0606 --- /dev/null +++ b/accessible/xul/XULTreeGridAccessible.h @@ -0,0 +1,187 @@ +/* -*- Mode: C++; tab-width: 2; 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/. */ + +#ifndef mozilla_a11y_XULTreeGridAccessible_h__ +#define mozilla_a11y_XULTreeGridAccessible_h__ + +#include "XULTreeAccessible.h" +#include "TableAccessible.h" +#include "TableCellAccessible.h" +#include "xpcAccessibleTable.h" +#include "xpcAccessibleTableCell.h" + +namespace mozilla { +namespace a11y { + +class XULTreeGridCellAccessible; + +/** + * Represents accessible for XUL tree in the case when it has multiple columns. + */ +class XULTreeGridAccessible : public XULTreeAccessible, + public TableAccessible +{ +public: + XULTreeGridAccessible(nsIContent* aContent, DocAccessible* aDoc, + nsTreeBodyFrame* aTreeFrame) : + XULTreeAccessible(aContent, aDoc, aTreeFrame) + { mGenericTypes |= eTable; } + + // TableAccessible + virtual uint32_t ColCount() override; + virtual uint32_t RowCount() override; + virtual Accessible* CellAt(uint32_t aRowIndex, uint32_t aColumnIndex) override; + virtual void ColDescription(uint32_t aColIdx, nsString& aDescription) override; + virtual bool IsColSelected(uint32_t aColIdx) override; + virtual bool IsRowSelected(uint32_t aRowIdx) override; + virtual bool IsCellSelected(uint32_t aRowIdx, uint32_t aColIdx) override; + virtual uint32_t SelectedCellCount() override; + virtual uint32_t SelectedColCount() override; + virtual uint32_t SelectedRowCount() override; + virtual void SelectedCells(nsTArray<Accessible*>* aCells) override; + virtual void SelectedCellIndices(nsTArray<uint32_t>* aCells) override; + virtual void SelectedColIndices(nsTArray<uint32_t>* aCols) override; + virtual void SelectedRowIndices(nsTArray<uint32_t>* aRows) override; + virtual void SelectRow(uint32_t aRowIdx) override; + virtual void UnselectRow(uint32_t aRowIdx) override; + virtual Accessible* AsAccessible() override { return this; } + + // Accessible + virtual TableAccessible* AsTable() override { return this; } + virtual a11y::role NativeRole() override; + +protected: + virtual ~XULTreeGridAccessible(); + + // XULTreeAccessible + virtual already_AddRefed<Accessible> + CreateTreeItemAccessible(int32_t aRow) const override; +}; + + +/** + * Represents accessible for XUL tree item in the case when XUL tree has + * multiple columns. + */ +class XULTreeGridRowAccessible final : public XULTreeItemAccessibleBase +{ +public: + using Accessible::GetChildAt; + + XULTreeGridRowAccessible(nsIContent* aContent, DocAccessible* aDoc, + Accessible* aParent, nsITreeBoxObject* aTree, + nsITreeView* aTreeView, int32_t aRow); + + // nsISupports and cycle collection + NS_DECL_ISUPPORTS_INHERITED + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(XULTreeGridRowAccessible, + XULTreeItemAccessibleBase) + + // Accessible + virtual void Shutdown() override; + virtual a11y::role NativeRole() override; + virtual ENameValueFlag Name(nsString& aName) override; + virtual Accessible* ChildAtPoint(int32_t aX, int32_t aY, + EWhichChildAtPoint aWhichChild) override; + + virtual Accessible* GetChildAt(uint32_t aIndex) const override; + virtual uint32_t ChildCount() const override; + + // XULTreeItemAccessibleBase + virtual XULTreeGridCellAccessible* GetCellAccessible(nsITreeColumn* aColumn) + const override final; + virtual void RowInvalidated(int32_t aStartColIdx, int32_t aEndColIdx) override; + +protected: + virtual ~XULTreeGridRowAccessible(); + + // XULTreeItemAccessibleBase + mutable nsRefPtrHashtable<nsPtrHashKey<const void>, XULTreeGridCellAccessible> + mAccessibleCache; +}; + + +/** + * Represents an accessible for XUL tree cell in the case when XUL tree has + * multiple columns. + */ + +class XULTreeGridCellAccessible : public LeafAccessible, + public TableCellAccessible +{ +public: + + XULTreeGridCellAccessible(nsIContent* aContent, DocAccessible* aDoc, + XULTreeGridRowAccessible* aRowAcc, + nsITreeBoxObject* aTree, nsITreeView* aTreeView, + int32_t aRow, nsITreeColumn* aColumn); + + // nsISupports + NS_DECL_ISUPPORTS_INHERITED + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(XULTreeGridCellAccessible, + LeafAccessible) + + // Accessible + virtual TableCellAccessible* AsTableCell() override { return this; } + virtual nsIntRect Bounds() const override; + virtual ENameValueFlag Name(nsString& aName) override; + virtual Accessible* FocusedChild() override; + virtual already_AddRefed<nsIPersistentProperties> NativeAttributes() override; + virtual int32_t IndexInParent() const override; + virtual Relation RelationByType(RelationType aType) override; + virtual a11y::role NativeRole() override; + virtual uint64_t NativeState() override; + virtual uint64_t NativeInteractiveState() const override; + + // ActionAccessible + virtual uint8_t ActionCount() override; + virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override; + virtual bool DoAction(uint8_t aIndex) override; + + // TableCellAccessible + virtual TableAccessible* Table() const override; + virtual uint32_t ColIdx() const override; + virtual uint32_t RowIdx() const override; + virtual void ColHeaderCells(nsTArray<Accessible*>* aHeaderCells) override; + virtual void RowHeaderCells(nsTArray<Accessible*>* aCells) override { } + virtual bool Selected() override; + + /** + * Fire name or state change event if the accessible text or value has been + * changed. + * @return true if name has changed + */ + bool CellInvalidated(); + +protected: + virtual ~XULTreeGridCellAccessible(); + + // Accessible + virtual Accessible* GetSiblingAtOffset(int32_t aOffset, + nsresult* aError = nullptr) const override; + virtual void DispatchClickEvent(nsIContent* aContent, uint32_t aActionIndex) override; + + // XULTreeGridCellAccessible + + /** + * Return true if value of cell can be modified. + */ + bool IsEditable() const; + + enum { eAction_Click = 0 }; + + nsCOMPtr<nsITreeBoxObject> mTree; + nsITreeView* mTreeView; + + int32_t mRow; + nsCOMPtr<nsITreeColumn> mColumn; + + nsString mCachedTextEquiv; +}; + +} // namespace a11y +} // namespace mozilla + +#endif |