Implement NFCNDEFCapable

features/nfc/nfc/NFCNDEFCapable.h

@@ -34,6 +34,11 @@ namespace nfc {
      */ 
     class NFCNDEFCapable {
     public:
+        /**
+         * Construct a NFCNDEFCapable instance.
+         */ 
+        NFCNDEFCapable();
+
         /**
          * Check if this instance actually supports NDEF content.
          * 
@@ -41,7 +46,7 @@ namespace nfc {
          */ 
         virtual bool is_ndef_supported() const { return false; }
 
-        struct NFCNDEFCapableDelegate {
+        struct Delegate {
             /**
              * Parse a NDEF message.
              * 

features/nfc/source/nfc/NFCNDEFCapable.cpp

@@ -0,0 +1,51 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2018 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "NFCNDEFCapable.h"
+
+#include "acore/buffer.h"
+#include "acore/buffer_reader.h"
+#include "acore/buffer_builder.h"
+
+using namespace mbed;
+using namespace mbed::nfc;
+
+NFCNDEFCapable::NFCNDEFCapable() : _delegate(NULL)
+{
+
+}
+
+void NFCNDEFCapable::set_ndef_delegate(NFCNDEFCapable::Delegate* delegate)
+{
+    _delegate = delegate;
+}
+
+void NFCNDEFCapable::parse_ndef_message(const ac_buffer_t& buffer)
+{
+    ac_buffer_t reader;
+    ac_buffer_dup(&reader, &buffer);
+    if(_delegate != NULL) {
+        _delegate->parse_ndef_message(ac_buffer_reader_current_buffer_pointer(&reader), ac_buffer_reader_current_buffer_length(&reader));
+    }
+}
+
+void NFCNDEFCapable::build_ndef_message(ac_buffer_builder_t& buffer_builder) 
+{
+    if(_delegate != NULL) {
+        size_t count = _delegate->build_ndef_message( ac_buffer_builder_write_position(&buffer_builder), ac_buffer_builder_writable(&buffer_builder) );
+        ac_buffer_builder_write_n_skip(&buffer_builder, count);
+    }
+}