/**
* @copydoc Toolkit::ItemView::SetRefreshInterval
*/
- void SetRefreshInterval(unsigned int intervalMilliseconds);
+ void SetRefreshInterval(float intervalLayoutPositions);
/**
* @copydoc Toolkit::ItemView::GetRefreshInterval
*/
- unsigned int GetRefreshInterval() const;
+ float GetRefreshInterval() const;
/**
* @copydoc Toolkit::ItemView::GetItem
private: // From CustomActorImpl
/**
+ * From CustomActorImpl; called after a child has been added to the owning actor.
+ * @param[in] child The child which has been added.
+ */
+ virtual void OnChildAdd(Actor& child);
+
+ /**
* From CustomActorImpl; called after a touch-signal is received by the owning actor.
* @param[in] event The touch event.
* @return True if the event should be consumed.
void OnOvershootOnFinished(Animation& animation);
/**
- * Helper to start the refresh timer.
- */
- void StartRefreshTimer();
-
- /**
- * Helper to cancel the refresh timer.
- */
- void CancelRefreshTimer();
-
- /**
- * Refresh the ItemView; this is called after a timeout when scrolling.
- * During a refresh, ItemFactory::NewItem() will be called to create newly visible items.
- * @return True if the refresh timer should be kept running.
- */
- bool OnRefreshTick();
-
- /**
* This is called after a timeout when no new mouse wheel event is received for a certain period of time.
* @return will return false; one-shot timer.
*/
*/
bool IsLayoutScrollable(const Vector3& layoutSize);
+ /**
+ * Callback when the current layout position of ItemView changes in both positive
+ * and negative directions by the specified amount. Refresh the ItemView to create
+ * newly visible items.
+ * @param[in] source the property notification that triggered this callback
+ */
+ void OnRefreshNotification(PropertyNotification& source);
+
private:
ItemFactory& mItemFactory;
bool mAnchoringEnabled;
float mAnchoringDuration;
- Timer mRefreshTimer;
- int mRefreshIntervalMilliseconds;
+ float mRefreshIntervalLayoutPositions; ///< Refresh item view when the layout position changes by this interval in both positive and negative directions.
+ PropertyNotification mRefreshNotification; // stores the property notification used for item view refresh
bool mRefreshOrderHint; ///< True if scrolling towards the last item
// Input handling
Dali::Toolkit::ScrollConnector mScrollConnector; ///< Connects ItemView with scrollable components e.g. scroll bars
Constrainable mScrollPositionObject; ///< From mScrollConnector
+ bool mAddingItems;
+
Property::Index mPropertyPosition; ///< The physical position of the first item within the layout
Property::Index mPropertyMinimumLayoutPosition; ///< The minimum valid layout position in the layout.
Property::Index mPropertyScrollSpeed; ///< The current scroll speed of item view