Support action button to fetch more content suggestions

chrome/browser/android/ntp/ntp_snippets_bridge.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/ntp/ntp_snippets_bridge.h"
 
 #include <jni.h>
 
 #include "base/android/callback_android.h"
 #include "base/android/jni_android.h"
@@ skipping 123 matching lines @@
     const base::android::JavaParamRef<jobject>& obj,
     jint category) {
   base::Optional<CategoryInfo> info =
       content_suggestions_service_->GetCategoryInfo(
           content_suggestions_service_->category_factory()->FromIDValue(
               category));
   if (!info)
     return base::android::ScopedJavaLocalRef<jobject>(env, nullptr);
   return Java_SnippetsBridge_createSuggestionsCategoryInfo(
       env, ConvertUTF16ToJavaString(env, info->title()).obj(),
-      static_cast<int>(info->card_layout()));
+      static_cast<int>(info->card_layout()), info->has_more_button());
 }
 
 ScopedJavaLocalRef<jobject> NTPSnippetsBridge::GetSuggestionsForCategory(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& obj,
     jint category) {
   const std::vector<ContentSuggestion>& suggestions =
       content_suggestions_service_->GetSuggestionsForCategory(
           content_suggestions_service_->category_factory()->FromIDValue(
               category));
   ScopedJavaLocalRef<jobject> result =
       Java_SnippetsBridge_createSuggestionList(env);
   for (const ContentSuggestion& suggestion : suggestions) {
     Java_SnippetsBridge_addSuggestion(
         env, result.obj(), ConvertUTF8ToJavaString(env, suggestion.id()).obj(),
         ConvertUTF16ToJavaString(env, suggestion.title()).obj(),
         ConvertUTF16ToJavaString(env, suggestion.publisher_name()).obj(),
         ConvertUTF16ToJavaString(env, suggestion.snippet_text()).obj(),
         ConvertUTF8ToJavaString(env, suggestion.url().spec()).obj(),
         ConvertUTF8ToJavaString(env, suggestion.amp_url().spec()).obj(),
         suggestion.publish_date().ToJavaTime(), suggestion.score());
   }
   return result;
 }
 
+void NTPSnippetsBridge::FetchMoreSuggestions(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj,
+    jint category) {
+  content_suggestions_service_->FetchMoreSuggestions(
+      content_suggestions_service_->category_factory()->FromIDValue(category));
+}
+
 void NTPSnippetsBridge::FetchSuggestionImage(
     JNIEnv* env,
     const JavaParamRef<jobject>& obj,
     const JavaParamRef<jstring>& suggestion_id,
     const JavaParamRef<jobject>& j_callback) {
   base::android::ScopedJavaGlobalRef<jobject> callback(j_callback);
   content_suggestions_service_->FetchSuggestionImage(
       ConvertJavaStringToUTF8(env, suggestion_id),
       base::Bind(&NTPSnippetsBridge::OnImageFetched,
                  weak_ptr_factory_.GetWeakPtr(), callback));
@@ skipping 52 matching lines @@
   if (!image.IsEmpty())
     j_bitmap = gfx::ConvertToJavaBitmap(image.ToSkBitmap());
 
   base::android::RunCallbackAndroid(callback, j_bitmap);
 }
 
 // static
 bool NTPSnippetsBridge::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }