[ATSPI] Introduce GetMatchesInMatches API

The GetMatchesInMatches API allows users to get a list of Accessible objects that match two different MatchRule parameters.

Change-Id: I2ac3dc502561b288a8d491e0392ecea8ef66e790
(cherry picked from commit 0fe284fc3ba14e071b32c69ab4fc7ce6e098e4bc)

diff --git a/dali/internal/accessibility/bridge/bridge-collection.cpp b/dali/internal/accessibility/bridge/bridge-collection.cpp
index d6caa90..2011130 100644 (file)
--- a/dali/internal/accessibility/bridge/bridge-collection.cpp
+++ b/dali/internal/accessibility/bridge/bridge-collection.cpp
@@ -47,6 +47,8 @@ void BridgeCollection::RegisterInterfaces()
 {
   DBus::DBusInterfaceDescription desc{Accessible::GetInterfaceName(AtspiInterface::COLLECTION)};
   AddFunctionToInterface(desc, "GetMatches", &BridgeCollection::GetMatches);
+  AddFunctionToInterface(desc, "GetMatchesInMatches", &BridgeCollection::GetMatchesInMatches);
+
   mDbusServer.addInterface("/", desc, true);
 }
 
@@ -449,6 +451,17 @@ struct BridgeCollection::Comparer
            CompareFunc(mState, obj);
   }
 
+  bool IsShowing(Accessible* obj)
+  {
+    if (mState.mMode == Mode::NONE) return true;
+    mState.Update(obj);
+    if (mState.IsRequestEmpty() || mState.IsObjectEmpty()) return true;
+    if (!mState.mRequested[State::SHOWING] ) return true;
+    if (mState.mObject[State::SHOWING]) return true;
+
+    return false;
+  }
+
   ComparerInterfaces mInterface;
   ComparerAttributes mAttribute;
   ComparerRoles      mRole;
@@ -473,6 +486,11 @@ void BridgeCollection::VisitNodes(Accessible* obj, std::vector<Accessible*>& res
     }
   }
 
+  if (!comparer.IsShowing(obj))
+  {
+    return;
+  }
+
   for(auto i = 0u; i < obj->GetChildCount(); ++i)
   {
     VisitNodes(obj->GetChildAtIndex(i), result, comparer, maxCount);
@@ -508,3 +526,44 @@ DBus::ValueOrError<std::vector<Accessible*> > BridgeCollection::GetMatches(Match
 
   return res;
 }
+
+DBus::ValueOrError<std::vector<Accessible*> > BridgeCollection::GetMatchesInMatches(MatchRule firstRule, MatchRule secondRule, uint32_t sortBy, int32_t firstCount, int32_t secondCount, bool traverse)
+{
+  std::vector<Accessible*> res;
+  std::vector<Accessible*> firstRes;
+  std::vector<Accessible*> secondRes;
+  auto                     self          = BridgeBase::FindCurrentObject();
+  auto                     firstMatcher  = Comparer{&firstRule};
+  auto                     secondMatcher = Comparer{&secondRule};
+  VisitNodes(self, firstRes, firstMatcher, firstCount);
+
+  for (auto &obj : firstRes)
+  {
+    VisitNodes(obj, secondRes, secondMatcher, secondCount);
+
+    res.insert(res.end(), secondRes.begin(), secondRes.end());
+    secondRes.clear();
+  }
+
+  switch(static_cast<SortOrder>(sortBy))
+  {
+    case SortOrder::CANONICAL:
+    {
+      break;
+    }
+
+    case SortOrder::REVERSE_CANONICAL:
+    {
+      std::reverse(res.begin(), res.end());
+      break;
+    }
+
+    default:
+    {
+      throw std::domain_error{"unsupported sorting order"};
+    }
+      //TODO: other cases
+  }
+
+  return res;
+}

diff --git a/dali/internal/accessibility/bridge/bridge-collection.h b/dali/internal/accessibility/bridge/bridge-collection.h
index 88f4d02..32ea9c1 100644 (file)
--- a/dali/internal/accessibility/bridge/bridge-collection.h
+++ b/dali/internal/accessibility/bridge/bridge-collection.h
@@ -112,6 +112,19 @@ public:
    * @return The matching Accessible objects
    */
   DBus::ValueOrError<std::vector<Dali::Accessibility::Accessible*> > GetMatches(MatchRule rule, uint32_t sortBy, int32_t count, bool traverse);
+
+  /**
+   * @brief Gets the matching Accessible objects with two MatchRules.
+   *
+   * @param[in] firstRule The initial BridgeCollection::MatchRule.
+   * @param[in] secondRule An secondary BridgeCollection::MatchRule.
+   * @param[in] sortBy SortOrder::CANONICAL or SortOrder::REVERSE_CANONICAL
+   * @param[in] firstCount The maximum number of objects to return for the initial match.
+   * @param[in] secondCount The maximum number of objects to return for the secondary match.
+   * @param[in] traverse True if it is traverse, otherwise false.
+   * @return The matching Accessible objects
+   */
+  DBus::ValueOrError<std::vector<Dali::Accessibility::Accessible*> > GetMatchesInMatches(MatchRule firstRule, MatchRule secondRule, uint32_t sortBy, int32_t firstCount, int32_t secondCount,  bool traverse);
 };
 
 #endif // DALI_INTERNAL_ACCESSIBILITY_BRIDGE_COLLECTION_H