accessible/android/TraversalRule.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef _TraversalRule_H_
   8 #define _TraversalRule_H_
   9
  10 #include "Pivot.h"
  11
  12 namespace mozilla {
  13 namespace a11y {
  14
  15 class Accessible;
  16
  17 /**
  18  * Class represents a simple traversal rule.
  19  */
  20 class TraversalRule : public PivotRule {
  21  public:
  22   TraversalRule();
  23   explicit TraversalRule(int32_t aGranularity, bool aIsLocal);
  24
  25   ~TraversalRule() = default;
  26
  27   virtual uint16_t Match(Accessible* aAcc) override;
  28
  29  private:
  30   bool IsSingleLineage(Accessible* aAccessible);
  31
  32   bool IsFlatSubtree(const Accessible* aAccessible);
  33
  34   bool IsListItemBullet(const Accessible* aAccessible);
  35
  36   bool HasName(const Accessible* aAccessible);
  37
  38   uint16_t DefaultMatch(Accessible* aAccessible);
  39
  40   uint16_t LinkMatch(Accessible* aAccessible);
  41
  42   uint16_t HeadingMatch(Accessible* aAccessible);
  43
  44   uint16_t ControlMatch(Accessible* aAccessible);
  45
  46   uint16_t SectionMatch(Accessible* aAccessible);
  47
  48   uint16_t LandmarkMatch(Accessible* aAccessible);
  49
  50   int32_t mGranularity;
  51
  52   bool mIsLocal;
  53 };
  54
  55 }  // namespace a11y
  56 }  // namespace mozilla
  57
  58 #endif