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   if ( mProxy )
  93   {
  94     mPropertyType = mProxy->GetPropertyType(mProxyPropertyIndex);
  95
  96     int internalComponentIndex = mProxy->GetPropertyComponentIndex(mProxyPropertyIndex);
  97     if( internalComponentIndex != Property::INVALID_COMPONENT_INDEX )
  98     {
  99       // override the one passed in
 100       mComponentIndex = internalComponentIndex;
 101     }
 102     if(mComponentIndex != Property::INVALID_COMPONENT_INDEX)
 103     {
 104       Property::Type type = mProxy->GetPropertyType(mProxyPropertyIndex);
 105       if( type == Property::VECTOR2
 106           || type == Property::VECTOR3
 107           || type == Property::VECTOR4 )
 108       {
 109         mPropertyType = Property::FLOAT;
 110       }
 111     }
 112
 113     // Check if target scene-object already present, and if so create our notification
 114     // scene-object
 115     const SceneGraph::PropertyOwner* object = mProxy->GetSceneObject();
 116     if (object)
 117     {
 118       CreateSceneObject();
 119     }
 120   }
 121
 122   // Connect to the property notification manager
 123   mPropertyNotificationManager.PropertyNotificationCreated( *this );
 124 }
 125
 126 PropertyNotification::~PropertyNotification()
 127 {
 128   Disable();
 129
 130   // Guard to disallow use of PropertyNotificationManager after Core has been destroyed
 131   if ( Stage::IsInstalled() )
 132   {
 133     // Disconnect from the property notification manager
 134     mPropertyNotificationManager.PropertyNotificationDestroyed( *this );
 135   }
 136 }
 137
 138 Dali::PropertyNotifySignalV2& PropertyNotification::NotifySignal()
 139 {
 140   return mNotifySignal;
 141 }
 142
 143 void PropertyNotification::EmitSignalNotify()
 144 {
 145   Dali::PropertyNotification source(this);
 146
 147   mNotifySignal.Emit( source );
 148 }
 149
 150 void PropertyNotification::Enable()
 151 {
 152   CreateSceneObject();
 153 }
 154
 155 void PropertyNotification::Disable()
 156 {
 157   // Guard to allow handle destruction after Core has been destroyed
 158   if ( Stage::IsInstalled() )
 159   {
 160     // Stop scene-graph from monitoring the target's properties.
 161     DestroySceneObject();
 162   }
 163 }
 164
 165 void PropertyNotification::SetNotifyResult( bool result )
 166 {
 167   mNotifyResult = result;
 168 }
 169
 170 const Dali::PropertyCondition& PropertyNotification::GetCondition() const
 171 {
 172   return mCondition;
 173 }
 174
 175 Dali::Handle PropertyNotification::GetTarget() const
 176 {
 177   Dali::Handle handle(mProxy);
 178
 179   return handle;
 180 }
 181
 182 Property::Index PropertyNotification::GetTargetProperty() const
 183 {
 184   return mProxyPropertyIndex;
 185 }
 186
 187 void PropertyNotification::SetNotifyMode( NotifyMode mode )
 188 {
 189   mNotifyMode = mode;
 190   if( mPropertyNotification )
 191   {
 192     PropertyNotificationSetNotifyModeMessage( mUpdateManager, mPropertyNotification, mode );
 193   }
 194 }
 195
 196 PropertyNotification::NotifyMode PropertyNotification::GetNotifyMode()
 197 {
 198   return mNotifyMode;
 199 }
 200
 201 bool PropertyNotification::GetNotifyResult() const
 202 {
 203   return mNotifyResult;
 204 }
 205
 206 bool PropertyNotification::CompareSceneObject( const SceneGraph::PropertyNotification* sceneObject )
 207 {
 208   return sceneObject && sceneObject == mPropertyNotification;
 209 }
 210
 211 void PropertyNotification::CreateSceneObject()
 212 {
 213   DALI_ASSERT_DEBUG( mPropertyNotification == NULL );
 214
 215   // Create a new PropertyNotification, temporarily owned
 216   SceneGraph::PropertyNotification* propertyNotification = SceneGraph::PropertyNotification::New( *mProxy,
 217                                                                                                   mProxyPropertyIndex,
 218                                                                                                   mPropertyType,
 219                                                                                                   mComponentIndex,
 220                                                                                                   GetImplementation(mCondition).type,
 221                                                                                                   mRawConditionArgs,
 222                                                                                                   mNotifyMode );
 223   // Keep a const pointer to the PropertyNotification.
 224   mPropertyNotification = propertyNotification;
 225
 226   // Transfer scene object ownership to the update manager through a message
 227   AddPropertyNotificationMessage( mUpdateManager, propertyNotification );
 228 }
 229
 230 void PropertyNotification::DestroySceneObject()
 231 {
 232   if ( mPropertyNotification != NULL )
 233   {
 234     // Remove PropertyNotification using a message to the update manager
 235     RemovePropertyNotificationMessage( mUpdateManager, *mPropertyNotification );
 236     mPropertyNotification = NULL;
 237   }
 238 }
 239
 240 } // namespace Internal
 241
 242 } // namespace Dali