Closes #884 - Set and use default search engine

app/src/main/java/org/mozilla/fenix/components/Search.kt

@@ -8,6 +8,7 @@ import android.content.Context
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
 import mozilla.components.browser.search.SearchEngineManager
+import org.mozilla.fenix.utils.Settings
 
 /**
  * Component group for all search engine integration related functionality.
@@ -23,6 +24,10 @@ class Search(private val context: Context) {
             GlobalScope.launch {
                 load(context).await()
             }
+            defaultSearchEngine = getDefaultSearchEngine(
+                context,
+                Settings.getInstance(context).defaultSearchEngineName
+            )
         }
     }
 }

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -112,8 +112,7 @@ class HomeFragment : Fragment() {
         })
 
         val searchIcon = requireComponents.search.searchEngineManager.getDefaultSearchEngine(
-            requireContext(),
-            Settings.getInstance(requireContext()).defaultSearchEngineName
+            requireContext()
         ).let {
             BitmapDrawable(resources, it.icon)
         }

app/src/main/java/org/mozilla/fenix/settings/RadioSearchEngineListPreference.kt

@@ -10,6 +10,7 @@ import android.widget.CompoundButton
 import android.widget.RadioGroup
 import androidx.preference.PreferenceViewHolder
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.utils.Settings
 
 class RadioSearchEngineListPreference : SearchEngineListPreference,
@@ -45,6 +46,7 @@ class RadioSearchEngineListPreference : SearchEngineListPreference,
         }
 
         val newDefaultEngine = searchEngines[checkedId]
+        context.components.search.searchEngineManager.defaultSearchEngine = newDefaultEngine
         Settings.getInstance(group.context).setDefaultSearchEngineByName(newDefaultEngine.name)
     }
 }