accessible/src/base/TextRange.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/accessible/src/base/TextRange.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,81 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set ts=2 et sw=2 tw=80: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#ifndef mozilla_a11y_TextRange_h__
    1.11 +#define mozilla_a11y_TextRange_h__
    1.12 +
    1.13 +#include "mozilla/Move.h"
    1.14 +#include "nsAutoPtr.h"
    1.15 +
    1.16 +namespace mozilla {
    1.17 +namespace a11y {
    1.18 +
    1.19 +class Accessible;
    1.20 +class HyperTextAccessible;
    1.21 +
    1.22 +/**
    1.23 + * Represents a text range within the text control or document.
    1.24 + */
    1.25 +class TextRange MOZ_FINAL
    1.26 +{
    1.27 +public:
    1.28 +  TextRange(HyperTextAccessible* aRoot,
    1.29 +            Accessible* aStartContainer, int32_t aStartOffset,
    1.30 +            Accessible* aEndContainer, int32_t aEndOffset);
    1.31 +  TextRange() {}
    1.32 +  TextRange(TextRange&& aRange) :
    1.33 +    mRoot(Move(aRange.mRoot)), mStartContainer(Move(aRange.mStartContainer)),
    1.34 +    mEndContainer(Move(aRange.mEndContainer)),
    1.35 +    mStartOffset(aRange.mStartOffset), mEndOffset(aRange.mEndOffset) {}
    1.36 +
    1.37 +  TextRange& operator= (TextRange&& aRange)
    1.38 +  {
    1.39 +    mRoot = Move(aRange.mRoot);
    1.40 +    mStartContainer = Move(aRange.mStartContainer);
    1.41 +    mEndContainer = Move(aRange.mEndContainer);
    1.42 +    mStartOffset = aRange.mStartOffset;
    1.43 +    mEndOffset = aRange.mEndOffset;
    1.44 +    return *this;
    1.45 +  }
    1.46 +
    1.47 +  Accessible* StartContainer() const { return mStartContainer; }
    1.48 +  int32_t StartOffset() const { return mStartOffset; }
    1.49 +  Accessible* EndContainer() const { return mEndContainer; }
    1.50 +  int32_t EndOffset() const { return mEndOffset; }
    1.51 +
    1.52 +  /**
    1.53 +   * Return text enclosed by the range.
    1.54 +   */
    1.55 +  void Text(nsAString& aText) const;
    1.56 +
    1.57 +  /**
    1.58 +   * Return true if this TextRange object represents an actual range of text.
    1.59 +   */
    1.60 +  bool IsValid() const { return mRoot; }
    1.61 +
    1.62 +private:
    1.63 +  TextRange(const TextRange& aRange) MOZ_DELETE;
    1.64 +  TextRange& operator=(const TextRange& aRange) MOZ_DELETE;
    1.65 +
    1.66 +  friend class HyperTextAccessible;
    1.67 +  friend class xpcAccessibleTextRange;
    1.68 +
    1.69 +  void Set(HyperTextAccessible* aRoot,
    1.70 +           Accessible* aStartContainer, int32_t aStartOffset,
    1.71 +           Accessible* aEndContainer, int32_t aEndOffset);
    1.72 +
    1.73 +  nsRefPtr<HyperTextAccessible> mRoot;
    1.74 +  nsRefPtr<Accessible> mStartContainer;
    1.75 +  nsRefPtr<Accessible> mEndContainer;
    1.76 +  int32_t mStartOffset;
    1.77 +  int32_t mEndOffset;
    1.78 +};
    1.79 +
    1.80 +
    1.81 +} // namespace a11y
    1.82 +} // namespace mozilla
    1.83 +
    1.84 +#endif

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