Add PreAttributeChangeCallback

Author: erwinpan1

examples/chef/common/clusters/switch/SwitchDelegate.cpp

@@ -141,8 +141,10 @@ class SwitchAttributeDelegate : public AttributeDelegate
 public:
     SwitchAttributeDelegate (ClusterId clusterId) : AttributeDelegate(clusterId) {}
 
-    void PostAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size, uint8_t * value) override;
+    chip::Protocols::InteractionModel::Status PreAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size, uint8_t * value) override;
 
+    void PostAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size, uint8_t * value) override;
+    
 private:
 };
 
@@ -156,6 +158,16 @@ SwitchEventHandler * GetSwitchEventHandler(EndpointId endpointId)
     return gSwitchEventHandlers[endpointId];
 }
 
+chip::Protocols::InteractionModel::Status SwitchAttributeDelegate::PreAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size, uint8_t * value)
+{
+    chip::Protocols::InteractionModel::Status ret = chip::Protocols::InteractionModel::Status::Success;
+printf("\033[41m %s, %d \033[0m \n", __func__, __LINE__);
+    ChipLogProgress(Zcl, "SwitchAttributeDelegate::PostAttributeChangeCallback Endpoint: %d, Cluster: " ChipLogFormatMEI ", Type: %u, length %u", attributePath.mEndpointId, ChipLogValueMEI(attributePath.mClusterId), type, size);
+
+
+    return ret;
+}
+
 void SwitchAttributeDelegate::PostAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size, uint8_t * value)
 {
 printf("\033[41m %s, %d \033[0m \n", __func__, __LINE__);

examples/chef/common/stubs.cpp

@@ -137,6 +137,24 @@ Protocols::InteractionModel::Status emberAfExternalAttributeWriteCallback(Endpoi
 
 void emberAfPluginSmokeCoAlarmSelfTestRequestCommand(EndpointId endpointId) {}
 
+
+chip::Protocols::InteractionModel::Status
+MatterPreAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size,
+                                 uint8_t * value)
+{
+    chip::Protocols::InteractionModel::Status ret = chip::Protocols::InteractionModel::Status::Success;
+
+    ChipLogProgress(Zcl, "MatterPostAttributeChangeCallback Endpoint: %d, Cluster: " ChipLogFormatMEI ", Type: %u, length %u", attributePath.mEndpointId, ChipLogValueMEI(attributePath.mClusterId), type, size);
+printf("\033[41m %s, %d \033[0m \n", __func__, __LINE__);
+
+    AttributeDelegate * delegate = GetApplicationAttributeDelegate(attributePath.mClusterId);
+    if (delegate) {
+        ret = delegate->PreAttributeChangeCallback(attributePath, type, size, value);
+    }
+
+    return ret; 
+}
+
 void MatterPostAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size,
                                        uint8_t * value)
 {

examples/chef/common/stubs.h

@@ -28,6 +28,12 @@ class AttributeDelegate
 {
 public:
     AttributeDelegate (ClusterId clusterId) : mClusterId(clusterId) {}
+
+    virtual ~AttributeDelegate() {}
+    /**
+     * xxxx 
+     */
+    virtual chip::Protocols::InteractionModel::Status PreAttributeChangeCallback(const chip::app::ConcreteAttributePath & attributePath, uint8_t type, uint16_t size, uint8_t * value) { return chip::Protocols::InteractionModel::Status::Success; }
     /**
      * xxxx 
      */
@@ -41,8 +47,6 @@ class AttributeDelegate
      */
     virtual Protocols::InteractionModel::Status ExternalAttributeReadCallback(EndpointId endpoint, ClusterId clusterId, const EmberAfAttributeMetadata * attributeMetadata, uint8_t * buffer, uint16_t maxReadLength) {return Protocols::InteractionModel::Status::Success;} 
 
-    virtual ~AttributeDelegate() {}
-
 private:
     ClusterId mClusterId;
 };