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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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_xpcAccessibleTextRange_h_
#define mozilla_a11y_xpcAccessibleTextRange_h_
#include <utility>
#include "TextRange.h"
#include "nsIAccessibleTextRange.h"
#include "xpcAccessibleHyperText.h"
namespace mozilla {
namespace a11y {
class TextRange;
#define NS_ACCESSIBLETEXTRANGE_IMPL_IID \
{ /* 133c8bf4-4913-4355-bd50-426bd1d6e1ad */ \
0xb17652d9, 0x4f54, 0x4c56, { \
0xbb, 0x62, 0x6d, 0x5b, 0xf1, 0xef, 0x91, 0x0c \
} \
}
class xpcAccessibleTextRange final : public nsIAccessibleTextRange {
public:
explicit xpcAccessibleTextRange(TextRange& aRange) { SetRange(aRange); }
NS_DECL_ISUPPORTS
NS_IMETHOD GetStartContainer(nsIAccessibleText** aAnchor) final;
NS_IMETHOD GetStartOffset(int32_t* aOffset) final;
NS_IMETHOD GetEndContainer(nsIAccessibleText** aAnchor) final;
NS_IMETHOD GetEndOffset(int32_t* aOffset) final;
NS_IMETHOD GetContainer(nsIAccessible** aContainer) final;
NS_IMETHOD Compare(nsIAccessibleTextRange* aOtherRange, bool* aResult) final;
NS_IMETHOD CompareEndPoints(uint32_t aEndPoint,
nsIAccessibleTextRange* aOtherRange,
uint32_t aOtherRangeEndPoint,
int32_t* aResult) final;
NS_IMETHOD Crop(nsIAccessible* aContainer, bool* aSuccess) final;
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ACCESSIBLETEXTRANGE_IMPL_IID)
private:
xpcAccessibleTextRange() {}
~xpcAccessibleTextRange() {}
friend class xpcAccessibleHyperText;
xpcAccessibleTextRange& operator=(const xpcAccessibleTextRange&) = delete;
void SetRange(TextRange& aRange);
TextRange Range();
// We can't hold a strong reference to an Accessible, but XPCOM needs strong
// references. Thus, instead of holding a TextRange here, we hold
// xpcAccessibleHyperText references and create the TextRange for each call
// using Range().
RefPtr<xpcAccessibleHyperText> mRoot;
RefPtr<xpcAccessibleHyperText> mStartContainer;
int32_t mStartOffset;
RefPtr<xpcAccessibleHyperText> mEndContainer;
int32_t mEndOffset;
};
NS_DEFINE_STATIC_IID_ACCESSOR(xpcAccessibleTextRange,
NS_ACCESSIBLETEXTRANGE_IMPL_IID)
} // namespace a11y
} // namespace mozilla
#endif
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