AdMob AdRequest Neighboring Content URLS

admob/integration_test/src/integration_test.cc

@@ -120,6 +120,9 @@ static const char* kAdNetworkExtrasInvalidClassName = "abc123321cba";
 
 static const char* kContentUrl = "http://www.firebase.com";
 
+static const std::vector<std::string> kNeighboringContentURLs = {
+    "test_url1", "test_url2", "test_url3"};
+
 using app_framework::LogDebug;
 using app_framework::ProcessEvents;
 
@@ -235,8 +238,12 @@ firebase::admob::AdRequest FirebaseAdMobTest::GetAdRequest() {
                       extras_iter->second.c_str());
   }
 
+  // Content URL
   request.set_content_url(kContentUrl);
 
+  // Neighboring Content URLs
+  request.add_neighboring_content_urls(kNeighboringContentURLs);
+
   return request;
 }
 
@@ -285,7 +292,7 @@ TEST_F(FirebaseAdMobTest, TestGetAdRequest) { GetAdRequest(); }
 TEST_F(FirebaseAdMobTest, TestGetAdRequestValues) {
   SKIP_TEST_ON_DESKTOP;
 
-  const firebase::admob::AdRequest request = GetAdRequest();
+  firebase::admob::AdRequest request = GetAdRequest();
 
   // Content URL.
   EXPECT_TRUE(request.content_url() == std::string(kContentUrl));
@@ -324,6 +331,16 @@ TEST_F(FirebaseAdMobTest, TestGetAdRequestValues) {
     EXPECT_TRUE(configured_keywords.find(*keyword_iter) !=
                 configured_keywords.end());
   }
+
+  const std::unordered_set<std::string> configured_neighboring_content_urls =
+      request.neighboring_content_urls();
+  EXPECT_EQ(configured_neighboring_content_urls.size(),
+            kNeighboringContentURLs.size());
+  for (auto url_iter = kNeighboringContentURLs.begin();
+       url_iter != kNeighboringContentURLs.end(); ++url_iter) {
+    EXPECT_TRUE(configured_neighboring_content_urls.find(*url_iter) !=
+                configured_neighboring_content_urls.end());
+  }
 }
 
 // A simple listener to help test changes to a AdViews.

admob/src/android/ad_request_converter.cc

@@ -124,6 +124,20 @@ jobject GetJavaAdRequestFromCPPAdRequest(const AdRequest& request,
     env->DeleteLocalRef(content_url);
   }
 
+  // Neighboring Content Urls.
+  if (!request.neighboring_content_urls().empty()) {
+    jobject url_list = util::StdUnorderedSetToJavaList(
+        env, request.neighboring_content_urls());
+    builder = util::ContinueBuilder(
+        env, builder,
+        env->CallObjectMethod(
+            builder,
+            ad_request_builder::GetMethodId(
+                ad_request_builder::kSetNeighboringContentUrls),
+            url_list));
+    env->DeleteLocalRef(url_list);
+  }
+
   // Set the request agent string so requests originating from this library can
   // be tracked and reported on as a group.
   jstring agent_str =

admob/src/android/admob_android.h

@@ -38,6 +38,8 @@ namespace admob {
       "Lcom/google/android/gms/ads/AdRequest$Builder;"),                     \
   X(SetContentUrl, "setContentUrl",                                          \
       "(Ljava/lang/String;)Lcom/google/android/gms/ads/AdRequest$Builder;"), \
+  X(SetNeighboringContentUrls, "setNeighboringContentUrls",                  \
+      "(Ljava/util/List;)Lcom/google/android/gms/ads/AdRequest$Builder;"),   \
   X(SetRequestAgent, "setRequestAgent",                                      \
       "(Ljava/lang/String;)Lcom/google/android/gms/ads/AdRequest$Builder;")
 // clang-format on

admob/src/common/admob_common.cc

@@ -132,10 +132,12 @@ AdRequest::AdRequest() {}
 AdRequest::~AdRequest() {}
 
 AdRequest::AdRequest(const char* content_url) { set_content_url(content_url); }
-void AdRequest::add_extra(const char* ad_network, const char* extra_key,
+
+void AdRequest::add_extra(const char* adapter_class_name, const char* extra_key,
                           const char* extra_value) {
-  if (ad_network != nullptr && extra_key != nullptr && extra_value != nullptr) {
-    extras_[std::string(ad_network)][std::string(extra_key)] =
+  if (adapter_class_name != nullptr && extra_key != nullptr &&
+      extra_value != nullptr) {
+    extras_[std::string(adapter_class_name)][std::string(extra_key)] =
         std::string(extra_value);
   }
 }
@@ -156,6 +158,14 @@ void AdRequest::set_content_url(const char* content_url) {
   }
 }
 
+void AdRequest::add_neighboring_content_urls(
+    const std::vector<std::string>& neighboring_content_urls) {
+  for (auto urls = neighboring_content_urls.begin();
+       urls != neighboring_content_urls.end(); ++urls) {
+    neighboring_content_urls_.insert(*urls);
+  }
+}
+
 // AdView
 // Method implementations of AdView which are platform independent.
 void AdView::SetAdListener(AdListener* listener) { ad_listener_ = listener; }

admob/src/include/firebase/admob/types.h

@@ -466,7 +466,7 @@ class AdRequest {
   /// if no content URL has been configured.
   const std::string& content_url() const { return content_url_; }
 
-  /// A Map of ad network adapters to their collection of extra parameters, as
+  /// A Map of adapter class names to their collection of extra parameters, as
   /// configured via @ref add_extra.
   const std::map<std::string, std::map<std::string, std::string> >& extras()
       const {
@@ -477,16 +477,23 @@ class AdRequest {
   /// @ref add_keyword.
   const std::unordered_set<std::string>& keywords() const { return keywords_; }
 
+  /// Returns the set of neighboring content URLs or an empty set if no URLs
+  /// were set via @ref add_neighboring_content_urls().
+  const std::unordered_set<std::string>& neighboring_content_urls() const {
+    return neighboring_content_urls_;
+  }
+
   /// Add a network extra for the associated ad_network.
   ///
   /// Appends an extra to the corresponding list of extras for the ad_network.
   /// Each ad network can have multiple extra strings.
   ///
-  /// @param[in] ad_network the ad network for which to add the extra.
+  /// @param[in] adapter_class_name the ad network adapter for which to add the
+  /// extra.
   /// @param[in] extra_key a key which will be passed to the corresponding ad
   /// network adapter.
   /// @param[in] extra_value the value associated with extra_key.
-  void add_extra(const char* ad_network, const char* extra_key,
+  void add_extra(const char* adapter_class_name, const char* extra_key,
                  const char* extra_value);
 
   /// Adds a keyword for targeting purposes.
@@ -504,10 +511,23 @@ class AdRequest {
   /// @param[in] content_url the url of the content being viewed.
   void set_content_url(const char* content_url);
 
+  /// Adds to the list of URLs which represent web content near an ad.
+  ///
+  /// Promotes brand safety and allows displayed ads to have an app level
+  /// rating (MA, T, PG, etc) that is more appropriate to neighboring content.
+  ///
+  /// Subsequent invocations append to the existing list.
+  ///
+  /// @param[in] neighboring_content_urls neighboring content URLs to be
+  /// attached to the existing neighboring content URLs.
+  void add_neighboring_content_urls(
+      const std::vector<std::string>& neighboring_content_urls);
+
  private:
   std::string content_url_;
   std::map<std::string, std::map<std::string, std::string> > extras_;
   std::unordered_set<std::string> keywords_;
+  std::unordered_set<std::string> neighboring_content_urls_;
 };
 
 /// Describes a reward credited to a user for interacting with a RewardedAd.

admob/src/ios/FADRequest.mm

@@ -93,6 +93,12 @@
     gadRequest.contentURL = util::StringToNSString(adRequest.content_url());
   }
 
+  // Neighboring Content URLs
+  if (!adRequest.neighboring_content_urls().empty()) {
+    gadRequest.neighboringContentURLStrings =
+      util::StringUnorderedSetToNSMutableArray(adRequest.neighboring_content_urls());
+  }
+
   // Set the request agent string so requests originating from this library can
   // be tracked and reported on as a group.
   gadRequest.requestAgent = @(GetRequestAgentString());

app/src/util_android.cc

@@ -679,6 +679,23 @@ jobject StdVectorToJavaList(JNIEnv* env,
   return java_list;
 }
 
+// Converts a `std::unordered_set<std::string>` to a
+// `java.util.ArrayList<String>` Returns a local ref to a List.
+jobject StdUnorderedSetToJavaList(
+    JNIEnv* env, const std::unordered_set<std::string>& string_set) {
+  jobject java_list =
+      env->NewObject(array_list::GetClass(),
+                     array_list::GetMethodId(array_list::kConstructor));
+  jmethodID add_method = array_list::GetMethodId(array_list::kAdd);
+  for (auto it = string_set.begin(); it != string_set.end(); ++it) {
+    jstring value = env->NewStringUTF(it->c_str());
+    env->CallBooleanMethod(java_list, add_method, value);
+    CheckAndClearJniExceptions(env);
+    env->DeleteLocalRef(value);
+  }
+  return java_list;
+}
+
 // Converts a `std::map<Variant, Variant>` to a `java.util.Map<Object, Object>`.
 // Returns a local ref to a Map.
 jobject VariantMapToJavaMap(JNIEnv* env,

app/src/util_android.h

@@ -22,6 +22,7 @@
 
 #include <map>
 #include <string>
+#include <unordered_set>
 #include <vector>
 
 #include "app/src/assert.h"
@@ -817,6 +818,11 @@ std::string JObjectClassName(JNIEnv* env, jobject obj);
 jobject StdVectorToJavaList(JNIEnv* env,
                             const std::vector<std::string>& string_vector);
 
+// Converts a `std::unordered_set<std::string>` to a `java.util.ArrayList<String>`
+// Returns a local ref to a List.
+jobject StdUnorderedSetToJavaList(JNIEnv* env,
+                            const std::unordered_set<std::string>& string_set);
+
 // Converts an `std::map<const char*, const char*>` to a
 // `java.util.Map<String, String>`.
 void StdMapToJavaMap(JNIEnv* env, jobject* to,

app/src/util_ios.h

@@ -24,6 +24,7 @@
 
 #include <map>
 #include <string>
+#include <unordered_set>
 #include <vector>
 
 #include "app/src/include/firebase/variant.h"
@@ -193,10 +194,14 @@ void ForEachAppDelegateClass(void (^block)(Class));
 NSMutableArray *StringVectorToNSMutableArray(
     const std::vector<std::string> &vector);
 
+// Convert a unordered_set of strings into an NSMutableArray.
+NSMutableArray *StringUnorderedSetToNSMutableArray(
+    const std::unordered_set<std::string> &set);
+
 // Convert a NSArray into a vector of strings.  Asserts if a non NSString
 // object is found in the array.
-void NSArrayOfNSStringToVectorOfString(NSArray *array,
-                                       std::vector<std::string> *string_vector);
+void NSArrayOfNSStringToVectorOfString(
+  NSArray *array, std::vector<std::string> *string_vector);
 
 // Convert a string map to NSDictionary.
 NSDictionary *StringMapToNSDictionary(

app/src/util_ios.mm

@@ -161,7 +161,16 @@ void ForEachAppDelegateClass(void (^block)(Class)) {
   return array;
 }
 
-void NSArrayOfNSStringToVectorOfString(NSArray *array, std::vector<std::string> *string_vector) {
+NSMutableArray *StringUnorderedSetToNSMutableArray(
+    const std::unordered_set<std::string> &set) {
+  NSMutableArray<NSString *> *array = [[NSMutableArray alloc] initWithCapacity:set.size()];
+  for (auto &element : set) {
+    [array addObject:StringToNSString(element)];
+  }
+  return array;
+}
+
+void NSArrayOfNSStringToVectorOfString(NSArray* array, std::vector<std::string>* string_vector) {
   string_vector->reserve(array.count);
   for (id object in array) {
     if (![object isKindOfClass:[NSString class]]) {