Line data    Source code

       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             : #include "mozilla/a11y/DocAccessibleChildBase.h"
       8             : #include "mozilla/a11y/ProxyAccessible.h"
       9             : 
      10             : #include "Accessible-inl.h"
      11             : 
      12             : namespace mozilla {
      13             : namespace a11y {
      14             : 
      15             : /* static */ uint32_t
      16           0 : DocAccessibleChildBase::InterfacesFor(Accessible* aAcc)
      17             : {
      18           0 :   uint32_t interfaces = 0;
      19           0 :   if (aAcc->IsHyperText() && aAcc->AsHyperText()->IsTextRole())
      20           0 :     interfaces |= Interfaces::HYPERTEXT;
      21             : 
      22           0 :   if (aAcc->IsLink())
      23           0 :     interfaces |= Interfaces::HYPERLINK;
      24             : 
      25           0 :   if (aAcc->HasNumericValue())
      26           0 :     interfaces |= Interfaces::VALUE;
      27             : 
      28           0 :   if (aAcc->IsImage())
      29           0 :     interfaces |= Interfaces::IMAGE;
      30             : 
      31           0 :   if (aAcc->IsTable()) {
      32           0 :     interfaces |= Interfaces::TABLE;
      33             :   }
      34             : 
      35           0 :   if (aAcc->IsTableCell())
      36           0 :     interfaces |= Interfaces::TABLECELL;
      37             : 
      38           0 :   if (aAcc->IsDoc())
      39           0 :     interfaces |= Interfaces::DOCUMENT;
      40             : 
      41           0 :   if (aAcc->IsSelect()) {
      42           0 :     interfaces |= Interfaces::SELECTION;
      43             :   }
      44             : 
      45           0 :   if (aAcc->ActionCount()) {
      46           0 :     interfaces |= Interfaces::ACTION;
      47             :   }
      48             : 
      49           0 :   return interfaces;
      50             : }
      51             : 
      52             : /* static */ void
      53           0 : DocAccessibleChildBase::SerializeTree(Accessible* aRoot,
      54             :                                       nsTArray<AccessibleData>& aTree)
      55             : {
      56           0 :   uint64_t id = reinterpret_cast<uint64_t>(aRoot->UniqueID());
      57             : #if defined(XP_WIN)
      58             :   int32_t msaaId = AccessibleWrap::GetChildIDFor(aRoot);
      59             : #endif
      60           0 :   uint32_t role = aRoot->Role();
      61           0 :   uint32_t childCount = aRoot->ChildCount();
      62           0 :   uint32_t interfaces = InterfacesFor(aRoot);
      63             : 
      64             :   // OuterDocAccessibles are special because we don't want to serialize the
      65             :   // child doc here, we'll call PDocAccessibleConstructor in
      66             :   // NotificationController.
      67           0 :   MOZ_ASSERT(!aRoot->IsDoc(), "documents shouldn't be serialized");
      68           0 :   if (aRoot->IsOuterDoc()) {
      69           0 :     childCount = 0;
      70             :   }
      71             : 
      72             : #if defined(XP_WIN)
      73             :   aTree.AppendElement(AccessibleData(id, msaaId, role, childCount, interfaces));
      74             : #else
      75           0 :   aTree.AppendElement(AccessibleData(id, role, childCount, interfaces));
      76             : #endif
      77             : 
      78           0 :   for (uint32_t i = 0; i < childCount; i++) {
      79           0 :     SerializeTree(aRoot->GetChildAt(i), aTree);
      80             :   }
      81           0 : }
      82             : 
      83             : void
      84           0 : DocAccessibleChildBase::ShowEvent(AccShowEvent* aShowEvent)
      85             : {
      86           0 :   Accessible* parent = aShowEvent->Parent();
      87           0 :   uint64_t parentID = parent->IsDoc() ? 0 : reinterpret_cast<uint64_t>(parent->UniqueID());
      88           0 :   uint32_t idxInParent = aShowEvent->GetAccessible()->IndexInParent();
      89           0 :   nsTArray<AccessibleData> shownTree;
      90           0 :   ShowEventData data(parentID, idxInParent, shownTree);
      91           0 :   SerializeTree(aShowEvent->GetAccessible(), data.NewTree());
      92           0 :   MaybeSendShowEvent(data, aShowEvent->IsFromUserInput());
      93           0 : }
      94             : 
      95             : } // namespace a11y
      96             : } // namespace mozilla
      97             :