dali/internal/event/common/object-registry-impl.cpp

   1 /*
   2  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali/internal/event/common/object-registry-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <algorithm>
  23 #include <cstring> // for strcmp
  24
  25 // INTERNAL INCLUDES
  26 #include <dali/internal/event/common/thread-local-storage.h>
  27 #include <dali/public-api/object/object-registry.h>
  28 #include <dali/public-api/object/type-registry.h>
  29
  30 namespace Dali
  31 {
  32 namespace Internal
  33 {
  34 namespace
  35 {
  36 // Signals
  37
  38 const char* const SIGNAL_OBJECT_CREATED   = "objectCreated";
  39 const char* const SIGNAL_OBJECT_DESTROYED = "objectDestroyed";
  40
  41 TypeRegistration mType(typeid(Dali::ObjectRegistry), typeid(Dali::BaseHandle), nullptr);
  42
  43 SignalConnectorType signalConnector1(mType, SIGNAL_OBJECT_CREATED, &ObjectRegistry::DoConnectSignal);
  44 SignalConnectorType signalConnector2(mType, SIGNAL_OBJECT_DESTROYED, &ObjectRegistry::DoConnectSignal);
  45
  46 } // namespace
  47
  48 ObjectRegistryPtr ObjectRegistry::New()
  49 {
  50   return ObjectRegistryPtr(new ObjectRegistry());
  51 }
  52
  53 ObjectRegistry::ObjectRegistry() = default;
  54
  55 ObjectRegistry::~ObjectRegistry() = default;
  56
  57 void ObjectRegistry::RegisterObject(Dali::BaseObject* object)
  58 {
  59   if(!mObjectCreatedSignal.Empty())
  60   {
  61     Dali::BaseHandle handle(object);
  62     mObjectCreatedSignal.Emit(handle);
  63   }
  64 }
  65
  66 void ObjectRegistry::UnregisterObject(Dali::BaseObject* object)
  67 {
  68   mObjectDestroyedSignal.Emit(object);
  69 }
  70
  71 bool ObjectRegistry::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
  72 {
  73   bool            connected(true);
  74   ObjectRegistry* objectRegistry = static_cast<ObjectRegistry*>(object); // TypeRegistry guarantees that this is the correct type.
  75
  76   if(0 == strcmp(signalName.c_str(), SIGNAL_OBJECT_CREATED))
  77   {
  78     objectRegistry->ObjectCreatedSignal().Connect(tracker, functor);
  79   }
  80   else if(0 == strcmp(signalName.c_str(), SIGNAL_OBJECT_DESTROYED))
  81   {
  82     objectRegistry->ObjectDestroyedSignal().Connect(tracker, functor);
  83   }
  84   else
  85   {
  86     // signalName does not match any signal
  87     connected = false;
  88   }
  89
  90   return connected;
  91 }
  92
  93 } // namespace Internal
  94
  95 } // namespace Dali