accessible/base/Filters.cpp

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #include "Filters.h"
   6
   7 #include "LocalAccessible-inl.h"
   8 #include "nsAccUtils.h"
   9 #include "Role.h"
  10 #include "States.h"
  11
  12 using namespace mozilla::a11y;
  13 using namespace mozilla::a11y::filters;
  14
  15 uint32_t filters::GetSelected(LocalAccessible* aAccessible) {
  16   if (aAccessible->State() & states::SELECTED) return eMatch | eSkipSubtree;
  17
  18   return eSkip;
  19 }
  20
  21 uint32_t filters::GetSelectable(LocalAccessible* aAccessible) {
  22   if (aAccessible->InteractiveState() & states::SELECTABLE) {
  23     return eMatch | eSkipSubtree;
  24   }
  25
  26   return eSkip;
  27 }
  28
  29 uint32_t filters::GetRow(LocalAccessible* aAccessible) {
  30   if (aAccessible->IsTableRow()) return eMatch | eSkipSubtree;
  31
  32   // Look for rows inside rowgroup or wrapping text containers.
  33   a11y::role role = aAccessible->Role();
  34   const nsRoleMapEntry* roleMapEntry = aAccessible->ARIARoleMap();
  35   if (role == roles::GROUPING ||
  36       (aAccessible->IsGenericHyperText() && !roleMapEntry)) {
  37     return eSkip;
  38   }
  39
  40   return eSkipSubtree;
  41 }
  42
  43 uint32_t filters::GetCell(LocalAccessible* aAccessible) {
  44   return aAccessible->IsTableCell() ? eMatch : eSkipSubtree;
  45 }