dali/internal/event/common/property-notification-impl.cpp

   1 //
   2 // Copyright (c) 2014 Samsung Electronics Co., Ltd.
   3 //
   4 // Licensed under the Flora License, Version 1.0 (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://floralicense.org/license/
   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 // CLASS HEADER
  18 #include <dali/internal/event/common/property-notification-impl.h>
  19
  20 // INTERNAL INCLUDES
  21 #include <dali/public-api/common/dali-common.h>
  22 #include <dali/public-api/math/vector2.h>
  23 #include <dali/public-api/math/radian.h>
  24 #include <dali/internal/event/actors/actor-impl.h>
  25 #include <dali/internal/event/common/property-notification-manager.h>
  26 #include <dali/internal/event/common/proxy-object.h>
  27 #include <dali/internal/event/common/stage-impl.h>
  28 #include <dali/internal/update/manager/update-manager.h>
  29 #include <dali/internal/update/common/scene-graph-property-notification.h>
  30 #include <dali/internal/event/common/thread-local-storage.h>
  31
  32 using namespace std;
  33
  34 using Dali::Internal::SceneGraph::UpdateManager;
  35
  36 namespace Dali
  37 {
  38
  39 namespace Internal
  40 {
  41
  42 PropertyNotificationPtr PropertyNotification::New(Property& target,
  43                                                   int componentIndex,
  44                                                   const Dali::PropertyCondition& condition)
  45 {
  46   ThreadLocalStorage& tls = ThreadLocalStorage::Get();
  47
  48   UpdateManager& updateManager = tls.GetUpdateManager();
  49
  50   PropertyNotificationManager& propertyNotificationManager = Stage::GetCurrent()->GetPropertyNotificationManager();
  51
  52   PropertyNotificationPtr propertyNotification = new PropertyNotification(updateManager,
  53                                                                           propertyNotificationManager,
  54                                                                           target,
  55                                                                           componentIndex,
  56                                                                           condition);
  57
  58   return propertyNotification;
  59 }
  60
  61 PropertyNotification::PropertyNotification(UpdateManager& updateManager,
  62                                            PropertyNotificationManager& propertyNotificationManager,
  63                                            Property& target,
  64                                            int componentIndex,
  65                                            const Dali::PropertyCondition& condition)
  66 : mUpdateManager(updateManager),
  67   mPropertyNotification(NULL),
  68   mPropertyNotificationManager(propertyNotificationManager),
  69   mProxyPropertyIndex(target.propertyIndex),
  70   mPropertyType(Property::NONE),
  71   mComponentIndex(componentIndex),
  72   mCondition(condition),
  73   mNotifyMode(Dali::PropertyNotification::NotifyOnTrue),
  74   mNotifyResult(false)
  75 {
  76   // Set condition arguments (as simple vector of floats)
  77   PropertyCondition::ArgumentContainer arguments = GetImplementation(condition).arguments;
  78   PropertyCondition::ArgumentConstIter iter = arguments.begin();
  79
  80   while( iter != arguments.end() )
  81   {
  82     const Property::Value& value = *iter;
  83     float floatValue;
  84     value.Get(floatValue);
  85
  86     mRawConditionArgs.PushBack( floatValue );
  87     ++iter;
  88   }
  89
  90   // Observe target proxy and create/destroy notification scene object accordingly.
  91   mProxy = dynamic_cast<ProxyObject*>( &GetImplementation(target.object) );
  92   mPropertyType = mProxy->GetPropertyType(mProxyPropertyIndex);
  93
  94   int internalComponentIndex = mProxy->GetPropertyComponentIndex(mProxyPropertyIndex);
  95   if( internalComponentIndex != Property::INVALID_COMPONENT_INDEX )
  96   {
  97     // override the one passed in
  98     mComponentIndex = internalComponentIndex;
  99   }
 100   if(mComponentIndex != Property::INVALID_COMPONENT_INDEX)
 101   {
 102     Property::Type type = mProxy->GetPropertyType(mProxyPropertyIndex);
 103     if( type == Property::VECTOR2
 104         || type == Property::VECTOR3
 105         || type == Property::VECTOR4 )
 106     {
 107       mPropertyType = Property::FLOAT;
 108     }
 109   }
 110
 111   // Check if target scene-object already present, and if so create our notification
 112   // scene-object
 113   if ( mProxy )
 114   {
 115     const SceneGraph::PropertyOwner* object = mProxy->GetSceneObject();
 116
 117     if (object)
 118     {
 119       CreateSceneObject();
 120     }
 121   }
 122
 123   // Connect to the property notification manager
 124   mPropertyNotificationManager.PropertyNotificationCreated( *this );
 125 }
 126
 127 PropertyNotification::~PropertyNotification()
 128 {
 129   Disable();
 130
 131   // Guard to disallow use of PropertyNotificationManager after Core has been destroyed
 132   if ( Stage::IsInstalled() )
 133   {
 134     // Disconnect from the property notification manager
 135     mPropertyNotificationManager.PropertyNotificationDestroyed( *this );
 136   }
 137 }
 138
 139 Dali::PropertyNotifySignalV2& PropertyNotification::NotifySignal()
 140 {
 141   return mNotifySignal;
 142 }
 143
 144 void PropertyNotification::EmitSignalNotify()
 145 {
 146   Dali::PropertyNotification source(this);
 147
 148   mNotifySignal.Emit( source );
 149 }
 150
 151 void PropertyNotification::Enable()
 152 {
 153   CreateSceneObject();
 154 }
 155
 156 void PropertyNotification::Disable()
 157 {
 158   // Guard to allow handle destruction after Core has been destroyed
 159   if ( Stage::IsInstalled() )
 160   {
 161     // Stop scene-graph from monitoring the target's properties.
 162     DestroySceneObject();
 163   }
 164 }
 165
 166 void PropertyNotification::SetNotifyResult( bool result )
 167 {
 168   mNotifyResult = result;
 169 }
 170
 171 const Dali::PropertyCondition& PropertyNotification::GetCondition() const
 172 {
 173   return mCondition;
 174 }
 175
 176 Dali::Handle PropertyNotification::GetTarget() const
 177 {
 178   Dali::Handle handle(mProxy);
 179
 180   return handle;
 181 }
 182
 183 Property::Index PropertyNotification::GetTargetProperty() const
 184 {
 185   return mProxyPropertyIndex;
 186 }
 187
 188 void PropertyNotification::SetNotifyMode( NotifyMode mode )
 189 {
 190   mNotifyMode = mode;
 191   if( mPropertyNotification )
 192   {
 193     PropertyNotificationSetNotifyModeMessage( mUpdateManager, mPropertyNotification, mode );
 194   }
 195 }
 196
 197 PropertyNotification::NotifyMode PropertyNotification::GetNotifyMode()
 198 {
 199   return mNotifyMode;
 200 }
 201
 202 bool PropertyNotification::GetNotifyResult() const
 203 {
 204   return mNotifyResult;
 205 }
 206
 207 bool PropertyNotification::CompareSceneObject( const SceneGraph::PropertyNotification* sceneObject )
 208 {
 209   return sceneObject && sceneObject == mPropertyNotification;
 210 }
 211
 212 void PropertyNotification::CreateSceneObject()
 213 {
 214   DALI_ASSERT_DEBUG( mPropertyNotification == NULL );
 215
 216   // Create a new PropertyNotification, temporarily owned
 217   SceneGraph::PropertyNotification* propertyNotification = SceneGraph::PropertyNotification::New( *mProxy,
 218                                                                                                   mProxyPropertyIndex,
 219                                                                                                   mPropertyType,
 220                                                                                                   mComponentIndex,
 221                                                                                                   GetImplementation(mCondition).type,
 222                                                                                                   mRawConditionArgs,
 223                                                                                                   mNotifyMode );
 224   // Keep a const pointer to the PropertyNotification.
 225   mPropertyNotification = propertyNotification;
 226
 227   // Transfer scene object ownership to the update manager through a message
 228   AddPropertyNotificationMessage( mUpdateManager, propertyNotification );
 229 }
 230
 231 void PropertyNotification::DestroySceneObject()
 232 {
 233   if ( mPropertyNotification != NULL )
 234   {
 235     // Remove PropertyNotification using a message to the update manager
 236     RemovePropertyNotificationMessage( mUpdateManager, *mPropertyNotification );
 237     mPropertyNotification = NULL;
 238   }
 239 }
 240
 241 } // namespace Internal
 242
 243 } // namespace Dali