Resource ready signal for Controls (for ImageLoading)

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / devel-api / controls / control-devel.h

diff --git a/dali-toolkit/devel-api/controls/control-devel.h b/dali-toolkit/devel-api/controls/control-devel.h
index b6ddd7e..63f5cf9 100644 (file)
--- a/dali-toolkit/devel-api/controls/control-devel.h
+++ b/dali-toolkit/devel-api/controls/control-devel.h
@@ -108,6 +108,29 @@ enum
 
 } // namespace Property
 
+/// @brief ResourceReady signal type;
+typedef Signal<void ( Control ) > ResourceReadySignalType;
+
+/**
+ * @brief This signal is emitted after all resources required
+ * by a control are loaded and ready.
+ * Most resources are only loaded when the control is placed on stage.
+ *
+ * A callback of the following type may be connected:
+ * @code
+ *   void YourCallbackName( Control control );
+ * @endcode
+ */
+ResourceReadySignalType& ResourceReadySignal( Control& control );
+
+/**
+ * @brief Query if all resources required by a control are loaded and ready.
+ * Most resources are only loaded when the control is placed on stage.
+ * @return true if the resources are loaded and ready, false otherwise
+ *
+ */
+bool IsResourceReady( const Control& control );
+
 } // namespace DevelControl
 
 } // namespace Toolkit