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

   1 /*
   2  * Copyright (c) 2016 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
  33 namespace Internal
  34 {
  35
  36 namespace
  37 {
  38
  39 // Signals
  40
  41 const char* const SIGNAL_OBJECT_CREATED =   "objectCreated";
  42 const char* const SIGNAL_OBJECT_DESTROYED = "objectDestroyed";
  43
  44 TypeRegistration mType( typeid( Dali::ObjectRegistry ), typeid( Dali::BaseHandle ), nullptr );
  45
  46 SignalConnectorType signalConnector1( mType, SIGNAL_OBJECT_CREATED,   &ObjectRegistry::DoConnectSignal );
  47 SignalConnectorType signalConnector2( mType, SIGNAL_OBJECT_DESTROYED, &ObjectRegistry::DoConnectSignal );
  48
  49 }
  50
  51 ObjectRegistryPtr ObjectRegistry::New()
  52 {
  53   return ObjectRegistryPtr( new ObjectRegistry() );
  54 }
  55
  56 ObjectRegistry::ObjectRegistry() = default;
  57
  58 ObjectRegistry::~ObjectRegistry() = default;
  59
  60 void ObjectRegistry::RegisterObject( Dali::BaseObject* object )
  61 {
  62   if ( !mObjectCreatedSignal.Empty() )
  63   {
  64     Dali::BaseHandle handle( object );
  65     mObjectCreatedSignal.Emit( handle );
  66   }
  67 }
  68
  69 void ObjectRegistry::UnregisterObject( Dali::BaseObject* object )
  70 {
  71   mObjectDestroyedSignal.Emit( object );
  72 }
  73
  74 bool ObjectRegistry::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
  75 {
  76   bool connected( true );
  77   ObjectRegistry* objectRegistry = static_cast< ObjectRegistry* >( object ); // TypeRegistry guarantees that this is the correct type.
  78
  79   if( 0 == strcmp( signalName.c_str(), SIGNAL_OBJECT_CREATED ) )
  80   {
  81     objectRegistry->ObjectCreatedSignal().Connect( tracker, functor );
  82   }
  83   else if( 0 == strcmp( signalName.c_str(), SIGNAL_OBJECT_DESTROYED ) )
  84   {
  85     objectRegistry->ObjectDestroyedSignal().Connect( tracker, functor );
  86   }
  87   else
  88   {
  89     // signalName does not match any signal
  90     connected = false;
  91   }
  92
  93   return connected;
  94 }
  95
  96 } // namespace Internal
  97
  98 } // namespace Dali