[ads] Unify iOS kBraveNTPBrandedWallpaper (uplift to 1.62.x) (#21801)

Uplift of #21751 (squashed) to release

components/ntp_background_images/browser/features.h

@@ -8,6 +8,7 @@
 
 #include "base/feature_list.h"
 #include "base/metrics/field_trial_params.h"
+#include "base/time/time.h"
 
 namespace ntp_background_images {
 namespace features {
@@ -20,11 +21,11 @@ BASE_DECLARE_FEATURE(kBraveNTPBrandedWallpaper);
 
 // Show initial branded wallpaper after nth new tab page for fresh opens.
 inline constexpr base::FeatureParam<int> kInitialCountToBrandedWallpaper{
-    &kBraveNTPBrandedWallpaper, "initial_count_to_branded_wallpaper", 1};
+    &kBraveNTPBrandedWallpaper, "initial_count_to_branded_wallpaper", 2};
 
 // Show branded wallpaper every nth new tab page.
 inline constexpr base::FeatureParam<int> kCountToBrandedWallpaper{
-    &kBraveNTPBrandedWallpaper, "count_to_branded_wallpaper", 2};
+    &kBraveNTPBrandedWallpaper, "count_to_branded_wallpaper", 3};
 
 // Reset counter when a specific amount of time has elapsed in SI mode.
 inline constexpr base::FeatureParam<base::TimeDelta> kResetCounterAfter{

components/ntp_background_images/browser/view_counter_model.cc

@@ -19,7 +19,8 @@ ViewCounterModel::ViewCounterModel(PrefService* prefs) : prefs_(prefs) {
 
   // When browser is restarted we reset to "initial" count. This will also get
   // set again in the Reset() function, called e.g. when component is updated.
-  count_to_branded_wallpaper_ = features::kInitialCountToBrandedWallpaper.Get();
+  count_to_branded_wallpaper_ =
+      features::kInitialCountToBrandedWallpaper.Get() - 1;
 
   // We also reset when a specific amount of time is elapsed when in SI mode
   timer_counts_reset_.Start(FROM_HERE, features::kResetCounterAfter.Get(), this,
@@ -97,7 +98,7 @@ void ViewCounterModel::RegisterPageViewForBrandedImages() {
   count_to_branded_wallpaper_--;
   if (count_to_branded_wallpaper_ < 0) {
     // Reset count and randomize image index for next time.
-    count_to_branded_wallpaper_ = features::kCountToBrandedWallpaper.Get();
+    count_to_branded_wallpaper_ = features::kCountToBrandedWallpaper.Get() - 1;
 
     // Randomize SI campaign branded image index for next time.
     campaigns_current_branded_image_index_[current_campaign_index_] =
@@ -152,7 +153,7 @@ void ViewCounterModel::MaybeResetBrandedWallpaperCount() {
   if (!always_show_branded_wallpaper_ && show_branded_wallpaper_) {
     count_to_branded_wallpaper_ =
         std::min(count_to_branded_wallpaper_,
-                 features::kInitialCountToBrandedWallpaper.Get());
+                 features::kInitialCountToBrandedWallpaper.Get() - 1);
   }
 }
 

components/ntp_background_images/browser/view_counter_model_unittest.cc

@@ -31,8 +31,8 @@ class ViewCounterModelTest : public testing::Test {
 
     base::FieldTrialParams parameters;
     std::vector<base::test::FeatureRefAndParams> enabled_features;
-    parameters[features::kInitialCountToBrandedWallpaper.name] = "1";
-    parameters[features::kCountToBrandedWallpaper.name] = "3";
+    parameters[features::kInitialCountToBrandedWallpaper.name] = "2";
+    parameters[features::kCountToBrandedWallpaper.name] = "4";
     enabled_features.emplace_back(features::kBraveNTPBrandedWallpaper,
                                   parameters);
     feature_list_.InitWithFeaturesAndParameters(enabled_features, {});
@@ -62,7 +62,8 @@ TEST_F(ViewCounterModelTest, NTPSponsoredImagesTest) {
   EXPECT_FALSE(model.always_show_branded_wallpaper_);
 
   // Loading initial count times.
-  for (int i = 0; i < features::kInitialCountToBrandedWallpaper.Get(); ++i) {
+  for (int i = 0; i < features::kInitialCountToBrandedWallpaper.Get() - 1;
+       ++i) {
     EXPECT_FALSE(model.ShouldShowBrandedWallpaper());
     model.RegisterPageView();
   }
@@ -83,7 +84,7 @@ TEST_F(ViewCounterModelTest, NTPSponsoredImagesTest) {
     model.RegisterPageView();
 
     // Loading regular-count times.
-    for (int j = 0; j < features::kCountToBrandedWallpaper.Get(); ++j) {
+    for (int j = 0; j < features::kCountToBrandedWallpaper.Get() - 1; ++j) {
       EXPECT_FALSE(model.ShouldShowBrandedWallpaper());
       model.RegisterPageView();
     }
@@ -116,7 +117,7 @@ TEST_F(ViewCounterModelTest, NTPSponsoredImagesCountToBrandedWallpaperTest) {
 
   // Loading regular-count times from kCountToBrandedWallpaper to 0 and do not
   // show branded wallpaper.
-  for (int i = 0; i < features::kCountToBrandedWallpaper.Get(); ++i) {
+  for (int i = 0; i < features::kCountToBrandedWallpaper.Get() - 1; ++i) {
     EXPECT_FALSE(model.ShouldShowBrandedWallpaper());
     model.RegisterPageView();
   }
@@ -183,7 +184,8 @@ TEST_F(ViewCounterModelTest, NTPBackgroundImagesTest) {
   model.set_total_image_count(kTestImageCount);
 
   // Loading initial count times.
-  for (int i = 0; i < features::kInitialCountToBrandedWallpaper.Get(); ++i) {
+  for (int i = 0; i < features::kInitialCountToBrandedWallpaper.Get() - 1;
+       ++i) {
     EXPECT_EQ(i, model.current_wallpaper_image_index());
     model.RegisterPageView();
   }
@@ -193,9 +195,9 @@ TEST_F(ViewCounterModelTest, NTPBackgroundImagesTest) {
 
   // Loading regular-count times.
   int expected_wallpaper_index;
-  for (int i = 0; i < features::kCountToBrandedWallpaper.Get(); ++i) {
+  for (int i = 0; i < features::kCountToBrandedWallpaper.Get() - 1; ++i) {
     expected_wallpaper_index =
-        (i + features::kInitialCountToBrandedWallpaper.Get()) %
+        (i + (features::kInitialCountToBrandedWallpaper.Get() - 1)) %
         model.total_image_count_;
     EXPECT_EQ(expected_wallpaper_index, model.current_wallpaper_image_index());
     model.RegisterPageView();
@@ -294,7 +296,8 @@ TEST_F(ViewCounterModelTest, NTPFailedToLoadSponsoredImagesTest) {
   model.set_total_image_count(kTestImageCount);
 
   // Loading initial count model.
-  for (int i = 0; i < features::kInitialCountToBrandedWallpaper.Get(); ++i) {
+  for (int i = 0; i < features::kInitialCountToBrandedWallpaper.Get() - 1;
+       ++i) {
     EXPECT_EQ(i, model.current_wallpaper_image_index());
     model.RegisterPageView();
   }

components/ntp_background_images/browser/view_counter_service_unittest.cc

@@ -230,7 +230,7 @@ class NTPBackgroundImagesViewCounterTest : public testing::Test {
   }
 
   int GetInitialCountToBrandedWallpaper() const {
-    return features::kInitialCountToBrandedWallpaper.Get();
+    return features::kInitialCountToBrandedWallpaper.Get() - 1;
   }
 
   absl::optional<base::Value::Dict> TryGetFirstSponsoredImageWallpaper() {
@@ -358,7 +358,7 @@ TEST_F(NTPBackgroundImagesViewCounterTest, IsActiveOptedIn) {
 TEST_F(NTPBackgroundImagesViewCounterTest, PrefsWithModelTest) {
   auto& model = view_counter_->model_;
 
-  EXPECT_EQ(features::kInitialCountToBrandedWallpaper.Get(),
+  EXPECT_EQ(features::kInitialCountToBrandedWallpaper.Get() - 1,
             model.show_branded_wallpaper_);
   EXPECT_TRUE(model.show_wallpaper_);
   EXPECT_TRUE(model.show_branded_wallpaper_);

ios/browser/api/ntp_background_images/ntp_background_images_service_ios.h

@@ -23,6 +23,11 @@ OBJC_EXPORT
 @property(readonly, nullable) NTPSponsoredImageData* sponsoredImageData;
 @property(readonly, nullable) NTPSponsoredImageData* superReferralImageData;
 
+// TODO(https://github.com/brave/brave-core/pull/21559): Remove these properties
+// once we have a better way to handle Griffin feature params from iOS.
+@property(nonatomic, readonly) NSInteger initialCountToBrandedWallpaper;
+@property(nonatomic, readonly) NSInteger countToBrandedWallpaper;
+
 - (void)updateSponsoredImageComponentIfNeeded;
 
 @property(readonly) NSString* superReferralCode;

ios/browser/api/ntp_background_images/ntp_background_images_service_ios.mm

@@ -9,6 +9,7 @@
 
 #include "base/memory/raw_ptr.h"
 #include "base/strings/sys_string_conversions.h"
+#include "brave/components/ntp_background_images/browser/features.h"
 #include "brave/components/ntp_background_images/browser/ntp_background_images_data.h"
 #include "brave/components/ntp_background_images/browser/ntp_background_images_service.h"
 #include "brave/components/ntp_background_images/browser/ntp_sponsored_images_data.h"
@@ -103,6 +104,14 @@ - (NTPSponsoredImageData*)superReferralImageData {
   return [[NTPSponsoredImageData alloc] initWithData:*data];
 }
 
+- (NSInteger)initialCountToBrandedWallpaper {
+  return ntp_background_images::features::kInitialCountToBrandedWallpaper.Get();
+}
+
+- (NSInteger)countToBrandedWallpaper {
+  return ntp_background_images::features::kCountToBrandedWallpaper.Get();
+}
+
 - (void)updateSponsoredImageComponentIfNeeded {
   _service->CheckNTPSIComponentUpdateIfNeeded();
 }