зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.6 KiB
C++
79 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_a11y_xpcAccessibleTextRange_h_
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#define mozilla_a11y_xpcAccessibleTextRange_h_
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#include <utility>
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#include "TextRange.h"
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#include "nsIAccessibleTextRange.h"
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#include "xpcAccessibleHyperText.h"
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namespace mozilla {
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namespace a11y {
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class TextRange;
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#define NS_ACCESSIBLETEXTRANGE_IMPL_IID \
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{ /* 133c8bf4-4913-4355-bd50-426bd1d6e1ad */ \
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0xb17652d9, 0x4f54, 0x4c56, { \
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0xbb, 0x62, 0x6d, 0x5b, 0xf1, 0xef, 0x91, 0x0c \
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} \
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}
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class xpcAccessibleTextRange final : public nsIAccessibleTextRange {
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public:
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explicit xpcAccessibleTextRange(TextRange& aRange) { SetRange(aRange); }
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NS_DECL_ISUPPORTS
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NS_IMETHOD GetStartContainer(nsIAccessibleText** aAnchor) final;
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NS_IMETHOD GetStartOffset(int32_t* aOffset) final;
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NS_IMETHOD GetEndContainer(nsIAccessibleText** aAnchor) final;
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NS_IMETHOD GetEndOffset(int32_t* aOffset) final;
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NS_IMETHOD GetContainer(nsIAccessible** aContainer) final;
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NS_IMETHOD Compare(nsIAccessibleTextRange* aOtherRange, bool* aResult) final;
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NS_IMETHOD CompareEndPoints(uint32_t aEndPoint,
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nsIAccessibleTextRange* aOtherRange,
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uint32_t aOtherRangeEndPoint,
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int32_t* aResult) final;
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NS_IMETHOD Crop(nsIAccessible* aContainer, bool* aSuccess) final;
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_ACCESSIBLETEXTRANGE_IMPL_IID)
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private:
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xpcAccessibleTextRange() {}
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~xpcAccessibleTextRange() {}
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friend class xpcAccessibleHyperText;
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xpcAccessibleTextRange& operator=(const xpcAccessibleTextRange&) = delete;
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void SetRange(TextRange& aRange);
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TextRange Range();
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// We can't hold a strong reference to an Accessible, but XPCOM needs strong
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// references. Thus, instead of holding a TextRange here, we hold
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// xpcAccessibleHyperText references and create the TextRange for each call
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// using Range().
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RefPtr<xpcAccessibleHyperText> mRoot;
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RefPtr<xpcAccessibleHyperText> mStartContainer;
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int32_t mStartOffset;
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RefPtr<xpcAccessibleHyperText> mEndContainer;
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int32_t mEndOffset;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(xpcAccessibleTextRange,
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NS_ACCESSIBLETEXTRANGE_IMPL_IID)
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} // namespace a11y
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} // namespace mozilla
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#endif
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