[fenix] No issue: Clean up preferences code (https://github.com/mozilla-mobile/fenix/pull/4699)

app/src/main/java/org/mozilla/fenix/ext/Fragment.kt

@@ -5,6 +5,7 @@
 package org.mozilla.fenix.ext
 
 import androidx.annotation.IdRes
+import androidx.annotation.StringRes
 import androidx.fragment.app.Fragment
 import androidx.navigation.NavDirections
 import androidx.navigation.NavOptions
@@ -29,3 +30,5 @@ fun Fragment.nav(@IdRes id: Int?, directions: NavDirections, extras: Navigator.E
 fun Fragment.nav(@IdRes id: Int?, directions: NavDirections, options: NavOptions) {
     findNavController(this).nav(id, directions, options)
 }
+
+fun Fragment.getPreferenceKey(@StringRes resourceId: Int): String = getString(resourceId)

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

@@ -21,12 +21,18 @@ import org.mozilla.fenix.BuildConfig
 import org.mozilla.fenix.R
 import org.mozilla.geckoview.BuildConfig as GeckoViewBuildConfig
 
+/**
+ * Displays the logo and information about the app, including library versions.
+ */
 class AboutFragment : Fragment() {
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         return inflater.inflate(R.layout.fragment_about, container, false)
     }
 
+    /**
+     * Sets the activity title, displays library version strings, and sets up the [view_licenses_button].
+     */
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
@@ -53,8 +59,8 @@ class AboutFragment : Fragment() {
             ""
         }
 
-        val buildDate = BuildConfig.BUILD_DATE
         val content = getString(R.string.about_content, appName)
+        val buildDate = BuildConfig.BUILD_DATE
 
         about_text.text = aboutText
         about_content.text = content
@@ -62,12 +68,7 @@ class AboutFragment : Fragment() {
 
         view_licenses_button.setOnClickListener {
             startActivity(Intent(context, OssLicensesMenuActivity::class.java))
-            OssLicensesMenuActivity.setActivityTitle(
+            OssLicensesMenuActivity.setActivityTitle(getString(R.string.open_source_licenses_title, appName))
-                getString(
-                    R.string.open_source_licenses_title,
-                    getString(R.string.app_name)
-                )
-            )
         }
     }
 

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

@@ -6,44 +6,64 @@ package org.mozilla.fenix.settings
 
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
-import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreference
 import org.mozilla.fenix.R
-import org.mozilla.fenix.ext.requireComponents
+import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.utils.Settings
 
+/**
+ * Displays font size controls for accessibility.
+ *
+ * Includes an automatic font sizing toggle. When turned on, font sizing follows the Android device settings.
+ * When turned off, the font sizing can be controlled manually within the app.
+ */
 class AccessibilityFragment : PreferenceFragmentCompat() {
     override fun onResume() {
         super.onResume()
         (activity as AppCompatActivity).title = getString(R.string.preferences_accessibility)
         (activity as AppCompatActivity).supportActionBar?.show()
-        val textSizePreference =
-            findPreference<TextPercentageSeekBarPreference>(getString(R.string.pref_key_accessibility_font_scale))
-        textSizePreference?.onPreferenceChangeListener =
-            Preference.OnPreferenceChangeListener { _, newValue ->
-                (newValue as? Int).let {
-                    // Value is mapped from 0->30 in steps of 1 so let's convert to float in range 0.5->2.0
-                    val newTextScale = ((newValue as Int * STEP_SIZE) + MIN_SCALE_VALUE).toFloat() / PERCENT_TO_DECIMAL
-                    Settings.getInstance(context!!).fontSizeFactor = newTextScale
-                    requireComponents.core.engine.settings.fontSizeFactor = newTextScale
-                    requireComponents.useCases.sessionUseCases.reload.invoke()
-                }
-                true
-            }
 
+        val textSizePreference = findPreference<TextPercentageSeekBarPreference>(
+            getPreferenceKey(R.string.pref_key_accessibility_font_scale)
+        )
+        textSizePreference?.setOnPreferenceChangeListener<Int> { preference, newTextSize ->
+            val settings = Settings.getInstance(preference.context)
+            val components = preference.context.components
+
+            // Value is mapped from 0->30 in steps of 1 so let's convert to float in range 0.5->2.0
+            val newTextScale = ((newTextSize * STEP_SIZE) + MIN_SCALE_VALUE).toFloat() / PERCENT_TO_DECIMAL
+
+            // Save new text scale value. We assume auto sizing is off if this change listener was called.
+            settings.fontSizeFactor = newTextScale
+            components.core.engine.settings.fontSizeFactor = newTextScale
+
+            // Reload the current session to reflect the new text scale
+            components.useCases.sessionUseCases.reload()
+            true
+        }
         textSizePreference?.isVisible = !Settings.getInstance(context!!).shouldUseAutoSize
 
         val useAutoSizePreference =
-            findPreference<SwitchPreference>(getString(R.string.pref_key_accessibility_auto_size))
+            findPreference<SwitchPreference>(getPreferenceKey(R.string.pref_key_accessibility_auto_size))
-        useAutoSizePreference?.setOnPreferenceChangeListener { _, newValue ->
+        useAutoSizePreference?.setOnPreferenceChangeListener<Boolean> { preference, useAutoSize ->
-            Settings.getInstance(context!!).shouldUseAutoSize = newValue as Boolean
+            val settings = Settings.getInstance(preference.context)
-            requireComponents.core.engine.settings.automaticFontSizeAdjustment = newValue
+            val components = preference.context.components
-            if (!newValue) {
+
-                requireComponents.core.engine.settings.fontSizeFactor = Settings.getInstance(context!!).fontSizeFactor
+            // Save the new setting value
+            settings.shouldUseAutoSize = useAutoSize
+            components.core.engine.settings.automaticFontSizeAdjustment = useAutoSize
+
+            // If using manual sizing, update the engine settings with the local saved setting
+            if (!useAutoSize) {
+                components.core.engine.settings.fontSizeFactor = settings.fontSizeFactor
             }
-            textSizePreference?.isVisible = !newValue
+            // Show the manual sizing controls if automatic sizing is turned off.
-            requireComponents.useCases.sessionUseCases.reload.invoke()
+            textSizePreference?.isVisible = !useAutoSize
+
+            // Reload the current session to reflect the new text scale
+            components.useCases.sessionUseCases.reload()
             true
         }
     }

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

@@ -6,8 +6,8 @@ package org.mozilla.fenix.settings
 
 import android.content.Context
 import android.util.AttributeSet
-import android.view.View
 import android.widget.TextView
+import androidx.core.view.isGone
 import androidx.preference.Preference
 import androidx.preference.PreferenceViewHolder
 import org.mozilla.fenix.R
@@ -32,10 +32,7 @@ class AccountAuthErrorPreference @JvmOverloads constructor(
     }
 
     private fun updateEmailView(email: String?) {
-        emailView?.text = email.orEmpty()
+        emailView?.text = email
-        emailView?.visibility = when (email.isNullOrEmpty()) {
+        emailView?.isGone = email.isNullOrEmpty()
-            true -> View.GONE
-            false -> View.VISIBLE
-        }
     }
 }

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

@@ -6,8 +6,8 @@ package org.mozilla.fenix.settings
 
 import android.content.Context
 import android.util.AttributeSet
-import android.view.View
 import android.widget.TextView
+import androidx.core.view.isGone
 import androidx.preference.Preference
 import androidx.preference.PreferenceViewHolder
 import org.mozilla.fenix.R
@@ -49,10 +49,7 @@ class AccountPreference @JvmOverloads constructor(
     }
 
     private fun updateDisplayName(name: String?) {
-        displayNameView?.text = name.orEmpty()
+        displayNameView?.text = name
-        displayNameView?.visibility = when (displayName.isNullOrEmpty()) {
+        displayNameView?.isGone = displayName.isNullOrEmpty()
-            true -> View.GONE
-            false -> View.VISIBLE
-        }
     }
 }

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

@@ -7,7 +7,7 @@ package org.mozilla.fenix.settings
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.lifecycleScope
-import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.fragment.findNavController
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import kotlinx.coroutines.launch
@@ -20,66 +20,60 @@ import org.mozilla.fenix.ext.requireComponents
 
 class AccountProblemFragment : PreferenceFragmentCompat(), AccountObserver {
 
+    private val signInClickListener = Preference.OnPreferenceClickListener {
+        requireComponents.services.accountsAuthFeature.beginAuthentication(requireContext())
+        // TODO The sign-in web content populates session history,
+        // so pressing "back" after signing in won't take us back into the settings screen, but rather up the
+        // session history stack.
+        // We could auto-close this tab once we get to the end of the authentication process?
+        // Via an interceptor, perhaps.
+        true
+    }
+
+    private val signOutClickListener = Preference.OnPreferenceClickListener {
+        nav(
+            R.id.accountProblemFragment,
+            AccountProblemFragmentDirections.actionAccountProblemFragmentToSignOutFragment()
+        )
+        true
+    }
+
     override fun onResume() {
         super.onResume()
         (activity as AppCompatActivity).title = getString(R.string.sync_reconnect)
         (activity as AppCompatActivity).supportActionBar?.show()
 
+        val accountManager = requireComponents.backgroundServices.accountManager
+
         // We may have fixed our auth problem, in which case close this fragment.
-        if (requireComponents.backgroundServices.accountManager.authenticatedAccount() != null &&
+        if (accountManager.authenticatedAccount() != null && !accountManager.accountNeedsReauth()) {
-            !requireComponents.backgroundServices.accountManager.accountNeedsReauth()
+            findNavController().popBackStack()
-        ) {
-            NavHostFragment.findNavController(this).popBackStack()
             return
         }
 
-        requireComponents.backgroundServices.accountManager.register(this, owner = this)
+        accountManager.register(this, owner = this)
     }
 
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.sync_problem, rootKey)
 
         val preferenceSignIn =
-            findPreference<Preference>(context!!.getPreferenceKey(R.string.pref_key_sync_sign_in))
+            findPreference<Preference>(getPreferenceKey(R.string.pref_key_sync_sign_in))
         val preferenceSignOut =
-            findPreference<Preference>(context!!.getPreferenceKey(R.string.pref_key_sign_out))
+            findPreference<Preference>(getPreferenceKey(R.string.pref_key_sign_out))
-        preferenceSignIn?.onPreferenceClickListener = getClickListenerForSignIn()
+        preferenceSignIn?.onPreferenceClickListener = signInClickListener
-        preferenceSignOut?.onPreferenceClickListener = getClickListenerForSignOut()
+        preferenceSignOut?.onPreferenceClickListener = signOutClickListener
-    }
-
-    private fun getClickListenerForSignIn(): Preference.OnPreferenceClickListener {
-        return Preference.OnPreferenceClickListener {
-            requireComponents.services.accountsAuthFeature.beginAuthentication(requireContext())
-            // TODO The sign-in web content populates session history,
-            // so pressing "back" after signing in won't take us back into the settings screen, but rather up the
-            // session history stack.
-            // We could auto-close this tab once we get to the end of the authentication process?
-            // Via an interceptor, perhaps.
-            true
-        }
-    }
-
-    private fun getClickListenerForSignOut(): Preference.OnPreferenceClickListener {
-        return Preference.OnPreferenceClickListener {
-            nav(
-                R.id.accountProblemFragment,
-                AccountProblemFragmentDirections.actionAccountProblemFragmentToSignOutFragment()
-            )
-            true
-        }
     }
 
     // We're told our auth problems have been fixed; close this fragment.
-    override fun onAuthenticated(account: OAuthAccount, newAccount: Boolean) {
+    override fun onAuthenticated(account: OAuthAccount, newAccount: Boolean) = closeFragment()
-        lifecycleScope.launch {
-            NavHostFragment.findNavController(this@AccountProblemFragment).popBackStack()
-        }
-    }
 
     // We're told there are no more auth problems since there is no more account; close this fragment.
-    override fun onLoggedOut() {
+    override fun onLoggedOut() = closeFragment()
+
+    private fun closeFragment() {
         lifecycleScope.launch {
-            NavHostFragment.findNavController(this@AccountProblemFragment).popBackStack()
+            findNavController().popBackStack()
         }
     }
 }

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

@@ -11,14 +11,18 @@ import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreference
 import org.mozilla.fenix.R
 import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.utils.Settings
 
+/**
+ * Lets the user toggle telemetry on/off.
+ */
 class DataChoicesFragment : PreferenceFragmentCompat() {
 
     private val preferenceChangeListener =
         SharedPreferences.OnSharedPreferenceChangeListener { sharedPreferences, key ->
             when (key) {
-                getString(R.string.pref_key_telemetry) -> {
+                getPreferenceKey(R.string.pref_key_telemetry) -> {
                     if (sharedPreferences.getBoolean(key, Settings.getInstance(requireContext()).isTelemetryEnabled)) {
                         context?.components?.analytics?.metrics?.start()
                     } else {
@@ -51,16 +55,13 @@ class DataChoicesFragment : PreferenceFragmentCompat() {
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.data_choices_preferences, rootKey)
 
-        val telemetryPreference = findPreference<SwitchPreference>(getString(R.string.pref_key_telemetry))?.apply {
+        findPreference<SwitchPreference>(getPreferenceKey(R.string.pref_key_telemetry))?.apply {
             isChecked = Settings.getInstance(context).isTelemetryEnabled
 
             val appName = context.getString(R.string.app_name)
             summary = context.getString(R.string.preferences_usage_data_description, appName)
-        }
+
-        telemetryPreference?.setOnPreferenceChangeListener { preference, newValue ->
+            onPreferenceChangeListener = SharedPreferenceUpdater()
-            Settings.getInstance(preference.context).preferences.edit().putBoolean(preference.key, newValue as Boolean)
-                .apply()
-            true
         }
     }
 }

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

@@ -4,82 +4,22 @@
 
 package org.mozilla.fenix.settings
 
-import android.content.Context
 import android.view.View
 import android.widget.RadioButton
 import android.widget.TextView
 import androidx.core.text.HtmlCompat
+import androidx.preference.Preference
 import mozilla.components.feature.sitepermissions.SitePermissions
-import mozilla.components.feature.sitepermissions.SitePermissionsRules
 import mozilla.components.support.ktx.android.view.putCompoundDrawablesRelative
 import org.mozilla.fenix.R
 import org.mozilla.fenix.ThemeManager
 
-internal fun SitePermissionsRules.Action.toString(context: Context): String {
-    return when (this) {
-        SitePermissionsRules.Action.ASK_TO_ALLOW -> {
-            context.getString(R.string.preference_option_phone_feature_ask_to_allow)
-        }
-        SitePermissionsRules.Action.BLOCKED -> {
-            context.getString(R.string.preference_option_phone_feature_blocked)
-        }
-    }
-}
-
-internal fun SitePermissions.Status.toString(context: Context): String {
-    return when (this) {
-        SitePermissions.Status.BLOCKED -> {
-            context.getString(R.string.preference_option_phone_feature_blocked)
-        }
-        SitePermissions.Status.NO_DECISION -> {
-            context.getString(R.string.preference_option_phone_feature_ask_to_allow)
-        }
-        SitePermissions.Status.ALLOWED -> {
-            context.getString(R.string.preference_option_phone_feature_allowed)
-        }
-    }
-}
-
 fun SitePermissions.toggle(featurePhone: PhoneFeature): SitePermissions {
     return when (featurePhone) {
-        PhoneFeature.CAMERA -> {
+        PhoneFeature.CAMERA -> copy(camera = camera.toggle())
-            copy(
+        PhoneFeature.LOCATION -> copy(location = location.toggle())
-                camera = camera.toggle()
+        PhoneFeature.MICROPHONE -> copy(microphone = microphone.toggle())
-            )
+        PhoneFeature.NOTIFICATION -> copy(notification = notification.toggle())
-        }
-        PhoneFeature.LOCATION -> {
-            copy(
-                location = location.toggle()
-            )
-        }
-        PhoneFeature.MICROPHONE -> {
-            copy(
-                microphone = microphone.toggle()
-            )
-        }
-        PhoneFeature.NOTIFICATION -> {
-            copy(
-                notification = notification.toggle()
-            )
-        }
-    }
-}
-
-fun PhoneFeature.getLabel(context: Context): String {
-    return when (this) {
-        PhoneFeature.CAMERA -> context.getString(R.string.preference_phone_feature_camera)
-        PhoneFeature.LOCATION -> context.getString(R.string.preference_phone_feature_location)
-        PhoneFeature.MICROPHONE -> context.getString(R.string.preference_phone_feature_microphone)
-        PhoneFeature.NOTIFICATION -> context.getString(R.string.preference_phone_feature_notification)
-    }
-}
-
-fun PhoneFeature.getPreferenceKey(context: Context): String {
-    return when (this) {
-        PhoneFeature.CAMERA -> context.getString(R.string.pref_key_phone_feature_camera)
-        PhoneFeature.LOCATION -> context.getString(R.string.pref_key_phone_feature_location)
-        PhoneFeature.MICROPHONE -> context.getString(R.string.pref_key_phone_feature_microphone)
-        PhoneFeature.NOTIFICATION -> context.getString(R.string.pref_key_phone_feature_notification)
     }
 }
 
@@ -111,3 +51,18 @@ fun initBlockedByAndroidView(phoneFeature: PhoneFeature, blockedByAndroidView: V
         blockedByAndroidView.visibility = View.GONE
     }
 }
+
+/**
+ * Sets the callback to be invoked when this preference is changed by the user (but before
+ * the internal state has been updated). Allows the type of the preference to be specified.
+ * If the new value doesn't match the preference type the listener isn't called.
+ *
+ * @param onPreferenceChangeListener The callback to be invoked
+ */
+inline fun <reified T> Preference.setOnPreferenceChangeListener(
+    crossinline onPreferenceChangeListener: (Preference, T) -> Boolean
+) {
+    setOnPreferenceChangeListener { preference: Preference, newValue: Any ->
+        (newValue as? T)?.let { onPreferenceChangeListener(preference, it) } ?: false
+    }
+}

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

@@ -12,6 +12,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.core.text.HtmlCompat
 import androidx.fragment.app.Fragment
 import androidx.navigation.fragment.NavHostFragment.findNavController
+import androidx.navigation.fragment.findNavController
 import kotlinx.android.synthetic.main.fragment_pair.*
 import mozilla.components.feature.qr.QrFeature
 import mozilla.components.support.base.feature.BackHandler
@@ -68,8 +69,7 @@ class PairFragment : Fragment(), BackHandler {
 
     override fun onBackPressed(): Boolean {
         qrFeature.onBackPressed()
-        findNavController(this@PairFragment)
+        findNavController().popBackStack(R.id.turnOnSyncFragment, false)
-            .popBackStack(R.id.turnOnSyncFragment, false)
         return true
     }
 

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

@@ -8,8 +8,12 @@ import android.Manifest.permission.ACCESS_COARSE_LOCATION
 import android.Manifest.permission.ACCESS_FINE_LOCATION
 import android.Manifest.permission.RECORD_AUDIO
 import android.content.Context
+import androidx.annotation.StringRes
 import mozilla.components.feature.sitepermissions.SitePermissions
+import mozilla.components.feature.sitepermissions.SitePermissionsRules
 import mozilla.components.support.ktx.android.content.isPermissionGranted
+import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.utils.Settings
 import android.Manifest.permission.CAMERA as CAMERA_PERMISSION
 
@@ -32,57 +36,50 @@ enum class PhoneFeature(val id: Int, val androidPermissionsList: Array<String>)
     }
 
     fun getActionLabel(context: Context, sitePermissions: SitePermissions? = null, settings: Settings? = null): String {
-        val label = when (this) {
+        @StringRes val stringRes = when (getStatus(sitePermissions, settings)) {
-            CAMERA -> {
+            SitePermissions.Status.BLOCKED -> R.string.preference_option_phone_feature_blocked
-                sitePermissions?.camera?.toString(context) ?: settings
+            SitePermissions.Status.NO_DECISION -> R.string.preference_option_phone_feature_ask_to_allow
-                    ?.sitePermissionsPhoneFeatureCameraAction
+            SitePermissions.Status.ALLOWED -> R.string.preference_option_phone_feature_allowed
-                    ?.toString(context)
-            }
-            LOCATION -> {
-                sitePermissions?.location?.toString(context) ?: settings
-                    ?.sitePermissionsPhoneFeatureLocation
-                    ?.toString(context)
-            }
-            MICROPHONE -> {
-                sitePermissions?.microphone?.toString(context) ?: settings
-                    ?.sitePermissionsPhoneFeatureMicrophoneAction
-                    ?.toString(context)
-            }
-            NOTIFICATION -> {
-                sitePermissions?.notification?.toString(context) ?: settings
-                    ?.sitePermissionsPhoneFeatureNotificationAction
-                    ?.toString(context)
-            }
         }
-        return requireNotNull(label)
+        return context.getString(stringRes)
     }
 
     fun getStatus(sitePermissions: SitePermissions? = null, settings: Settings? = null): SitePermissions.Status {
-        val status = when (this) {
+        val status = getStatus(sitePermissions) ?: settings?.let(::getAction)?.toStatus()
-            CAMERA -> {
-                sitePermissions?.camera ?: settings
-                    ?.sitePermissionsPhoneFeatureCameraAction
-                    ?.toStatus()
-            }
-            LOCATION -> {
-                sitePermissions?.location ?: settings
-                    ?.sitePermissionsPhoneFeatureLocation
-                    ?.toStatus()
-            }
-            MICROPHONE -> {
-                sitePermissions?.microphone ?: settings
-                    ?.sitePermissionsPhoneFeatureMicrophoneAction
-                    ?.toStatus()
-            }
-            NOTIFICATION -> {
-                sitePermissions?.notification ?: settings
-                    ?.sitePermissionsPhoneFeatureNotificationAction
-                    ?.toStatus()
-            }
-        }
         return requireNotNull(status)
     }
 
+    fun getLabel(context: Context): String {
+        return when (this) {
+            CAMERA -> context.getString(R.string.preference_phone_feature_camera)
+            LOCATION -> context.getString(R.string.preference_phone_feature_location)
+            MICROPHONE -> context.getString(R.string.preference_phone_feature_microphone)
+            NOTIFICATION -> context.getString(R.string.preference_phone_feature_notification)
+        }
+    }
+
+    fun getPreferenceKey(context: Context): String {
+        return when (this) {
+            CAMERA -> context.getPreferenceKey(R.string.pref_key_phone_feature_camera)
+            LOCATION -> context.getPreferenceKey(R.string.pref_key_phone_feature_location)
+            MICROPHONE -> context.getPreferenceKey(R.string.pref_key_phone_feature_microphone)
+            NOTIFICATION -> context.getPreferenceKey(R.string.pref_key_phone_feature_notification)
+        }
+    }
+
+    fun getAction(settings: Settings): SitePermissionsRules.Action =
+        settings.getSitePermissionsPhoneFeatureAction(this)
+
+    private fun getStatus(sitePermissions: SitePermissions?): SitePermissions.Status? {
+        sitePermissions ?: return null
+        return when (this) {
+            CAMERA -> sitePermissions.camera
+            LOCATION -> sitePermissions.location
+            MICROPHONE -> sitePermissions.microphone
+            NOTIFICATION -> sitePermissions.notification
+        }
+    }
+
     companion object {
         fun findFeatureBy(permissions: Array<out String>): PhoneFeature? {
             return PhoneFeature.values().find { feature ->

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

@@ -9,6 +9,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreference
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.utils.Settings
 
 class SearchEngineFragment : PreferenceFragmentCompat() {
@@ -23,25 +24,17 @@ class SearchEngineFragment : PreferenceFragmentCompat() {
         (activity as AppCompatActivity).supportActionBar?.show()
 
         val searchSuggestionsPreference =
-            findPreference<SwitchPreference>(getString(R.string.pref_key_show_search_suggestions))?.apply {
+            findPreference<SwitchPreference>(getPreferenceKey(R.string.pref_key_show_search_suggestions))?.apply {
                 isChecked = Settings.getInstance(context).showSearchSuggestions
             }
 
-        searchSuggestionsPreference?.setOnPreferenceChangeListener { preference, newValue ->
+        searchSuggestionsPreference?.onPreferenceChangeListener = SharedPreferenceUpdater()
-            Settings.getInstance(preference.context).preferences.edit().putBoolean(preference.key, newValue as Boolean)
-                .apply()
-            true
-        }
 
         val showVisitedSitesBookmarks =
-            findPreference<SwitchPreference>(getString(R.string.pref_key_show_visited_sites_bookmarks))?.apply {
+            findPreference<SwitchPreference>(getPreferenceKey(R.string.pref_key_show_visited_sites_bookmarks))?.apply {
                 isChecked = Settings.getInstance(context).shouldShowVisitedSitesBookmarks
             }
 
-        showVisitedSitesBookmarks?.setOnPreferenceChangeListener { preference, newValue ->
+        showVisitedSitesBookmarks?.onPreferenceChangeListener = SharedPreferenceUpdater()
-            Settings.getInstance(preference.context).preferences.edit().putBoolean(preference.key, newValue as Boolean)
-                .apply()
-            true
-        }
     }
 }

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

@@ -90,7 +90,7 @@ class SettingsFragment : PreferenceFragmentCompat(), AccountObserver {
         preferenceManager.sharedPreferences.registerOnSharedPreferenceChangeListener(preferenceChangeListener)
 
         if (SDK_INT <= Build.VERSION_CODES.M) {
-            findPreference<DefaultBrowserPreference>(getString(R.string.pref_key_make_default_browser))?.apply {
+            findPreference<DefaultBrowserPreference>(getPreferenceKey(R.string.pref_key_make_default_browser))?.apply {
                 isVisible = false
             }
         }
@@ -106,17 +106,17 @@ class SettingsFragment : PreferenceFragmentCompat(), AccountObserver {
         (activity as AppCompatActivity).title = getString(R.string.settings_title)
         (activity as AppCompatActivity).supportActionBar?.show()
         val defaultBrowserPreference =
-            findPreference<DefaultBrowserPreference>(getString(R.string.pref_key_make_default_browser))
+            findPreference<DefaultBrowserPreference>(getPreferenceKey(R.string.pref_key_make_default_browser))
         defaultBrowserPreference?.updateSwitch()
 
         val searchEnginePreference =
-            findPreference<Preference>(getString(R.string.pref_key_search_engine_settings))
+            findPreference<Preference>(getPreferenceKey(R.string.pref_key_search_engine_settings))
         searchEnginePreference?.summary = context?.let {
             requireComponents.search.searchEngineManager.getDefaultSearchEngine(it).name
         }
 
         val trackingProtectionPreference =
-            findPreference<Preference>(getString(R.string.pref_key_tracking_protection_settings))
+            findPreference<Preference>(getPreferenceKey(R.string.pref_key_tracking_protection_settings))
         trackingProtectionPreference?.summary = context?.let {
             if (org.mozilla.fenix.utils.Settings.getInstance(it).shouldUseTrackingProtection) {
                 getString(R.string.tracking_protection_on)
@@ -126,12 +126,12 @@ class SettingsFragment : PreferenceFragmentCompat(), AccountObserver {
         }
 
         val themesPreference =
-            findPreference<Preference>(getString(R.string.pref_key_theme))
+            findPreference<Preference>(getPreferenceKey(R.string.pref_key_theme))
         themesPreference?.summary = context?.let {
             org.mozilla.fenix.utils.Settings.getInstance(it).themeSettingString
         }
 
-        val aboutPreference = findPreference<Preference>(getString(R.string.pref_key_about))
+        val aboutPreference = findPreference<Preference>(getPreferenceKey(R.string.pref_key_about))
         val appName = getString(R.string.app_name)
         aboutPreference?.title = getString(R.string.preferences_about, appName)
 
@@ -198,16 +198,16 @@ class SettingsFragment : PreferenceFragmentCompat(), AccountObserver {
                 navigateToThemeSettings()
             }
             resources.getString(pref_key_privacy_link) -> {
-                requireContext().apply {
+                requireContext().let { context ->
-                    val intent = SupportUtils.createCustomTabIntent(this, SupportUtils.PRIVACY_NOTICE_URL)
+                    val intent = SupportUtils.createCustomTabIntent(context, SupportUtils.PRIVACY_NOTICE_URL)
                     startActivity(intent)
                 }
             }
             resources.getString(pref_key_your_rights) -> {
-                requireContext().apply {
+                requireContext().let { context ->
                     val intent = SupportUtils.createCustomTabIntent(
-                        this,
+                        context,
-                        SupportUtils.getSumoURLForTopic(context!!, SupportUtils.SumoTopic.YOUR_RIGHTS)
+                        SupportUtils.getSumoURLForTopic(context, SupportUtils.SumoTopic.YOUR_RIGHTS)
                     )
                     startActivity(intent)
                 }
@@ -229,9 +229,9 @@ class SettingsFragment : PreferenceFragmentCompat(), AccountObserver {
     }
 
     private fun setupPreferences() {
-        val makeDefaultBrowserKey = context!!.getPreferenceKey(pref_key_make_default_browser)
+        val makeDefaultBrowserKey = getPreferenceKey(pref_key_make_default_browser)
-        val leakKey = context!!.getPreferenceKey(pref_key_leakcanary)
+        val leakKey = getPreferenceKey(pref_key_leakcanary)
-        val debuggingKey = context!!.getPreferenceKey(pref_key_remote_debugging)
+        val debuggingKey = getPreferenceKey(pref_key_remote_debugging)
 
         val preferenceMakeDefaultBrowser = findPreference<Preference>(makeDefaultBrowserKey)
         val preferenceLeakCanary = findPreference<Preference>(leakKey)

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

@@ -0,0 +1,20 @@
+package org.mozilla.fenix.settings
+
+import androidx.core.content.edit
+import androidx.preference.Preference
+import org.mozilla.fenix.utils.Settings
+
+/**
+ * Updates the corresponding [android.content.SharedPreferences] when the boolean [Preference] is changed.
+ * The preference key is used as the shared preference key.
+ */
+class SharedPreferenceUpdater : Preference.OnPreferenceChangeListener {
+
+    override fun onPreferenceChange(preference: Preference, newValue: Any?): Boolean {
+        val newBooleanValue = newValue as? Boolean ?: return false
+        Settings.getInstance(preference.context).preferences.edit {
+            putBoolean(preference.key, newBooleanValue)
+        }
+        return true
+    }
+}

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

@@ -19,6 +19,7 @@ import org.jetbrains.anko.noButton
 import org.jetbrains.anko.yesButton
 import org.mozilla.fenix.R
 import org.mozilla.fenix.ext.components
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.settings.PhoneFeature.CAMERA
 import org.mozilla.fenix.settings.PhoneFeature.LOCATION
 import org.mozilla.fenix.settings.PhoneFeature.MICROPHONE
@@ -83,7 +84,7 @@ class SitePermissionsDetailsExceptionsFragment : PreferenceFragmentCompat() {
     }
 
     private fun bindClearPermissionsButton() {
-        val keyPreference = getString(R.string.pref_key_exceptions_clear_site_permissions)
+        val keyPreference = getPreferenceKey(R.string.pref_key_exceptions_clear_site_permissions)
         val button: Preference = requireNotNull(findPreference(keyPreference))
 
         button.onPreferenceClickListener = Preference.OnPreferenceClickListener {

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

@@ -11,10 +11,7 @@ import androidx.preference.Preference
 import androidx.preference.Preference.OnPreferenceClickListener
 import androidx.preference.PreferenceFragmentCompat
 import org.mozilla.fenix.R
-import org.mozilla.fenix.settings.PhoneFeature.CAMERA
+import org.mozilla.fenix.ext.getPreferenceKey
-import org.mozilla.fenix.settings.PhoneFeature.LOCATION
-import org.mozilla.fenix.settings.PhoneFeature.MICROPHONE
-import org.mozilla.fenix.settings.PhoneFeature.NOTIFICATION
 import org.mozilla.fenix.utils.Settings
 
 @SuppressWarnings("TooManyFunctions")
@@ -36,13 +33,12 @@ class SitePermissionsFragment : PreferenceFragmentCompat() {
     }
 
     private fun setupPreferences() {
-
         bindCategoryPhoneFeatures()
         bindExceptions()
     }
 
     private fun bindExceptions() {
-        val keyExceptions = getString(R.string.pref_key_show_site_exceptions)
+        val keyExceptions = getPreferenceKey(R.string.pref_key_show_site_exceptions)
         val exceptionsCategory = requireNotNull<Preference>(findPreference(keyExceptions))
 
         exceptionsCategory.onPreferenceClickListener = OnPreferenceClickListener {
@@ -53,33 +49,17 @@ class SitePermissionsFragment : PreferenceFragmentCompat() {
     }
 
     private fun bindCategoryPhoneFeatures() {
-        val settings = Settings.getInstance(requireContext())
+        PhoneFeature.values().forEach(::initPhoneFeature)
-
-        val cameraAction = settings
-            .sitePermissionsPhoneFeatureCameraAction
-            .toString(requireContext())
-
-        val locationAction = settings
-            .sitePermissionsPhoneFeatureLocation
-            .toString(requireContext())
-
-        val microPhoneAction = settings
-            .sitePermissionsPhoneFeatureMicrophoneAction
-            .toString(requireContext())
-
-        val notificationAction = settings
-            .sitePermissionsPhoneFeatureNotificationAction
-            .toString(requireContext())
-
-        initPhoneFeature(CAMERA, cameraAction)
-        initPhoneFeature(LOCATION, locationAction)
-        initPhoneFeature(MICROPHONE, microPhoneAction)
-        initPhoneFeature(NOTIFICATION, notificationAction)
     }
 
-    private fun initPhoneFeature(phoneFeature: PhoneFeature, summary: String) {
+    private fun initPhoneFeature(phoneFeature: PhoneFeature) {
-        val keyPreference = phoneFeature.getPreferenceKey(requireContext())
+        val context = requireContext()
-        val cameraPhoneFeatures: Preference = requireNotNull(findPreference(keyPreference))
+        val settings = Settings.getInstance(context)
+
+        val summary = phoneFeature.getActionLabel(context, settings = settings)
+        val preferenceKey = phoneFeature.getPreferenceKey(context)
+
+        val cameraPhoneFeatures: Preference = requireNotNull(findPreference(preferenceKey))
         cameraPhoneFeatures.summary = summary
 
         cameraPhoneFeatures.onPreferenceClickListener = OnPreferenceClickListener {

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

@@ -92,7 +92,7 @@ class SitePermissionsManagePhoneFeatureFragment : Fragment() {
     }
 
     private fun RadioButton.restoreState(action: SitePermissionsRules.Action) {
-        if (phoneFeature.action == action) {
+        if (phoneFeature.getAction(settings) == action) {
             this.isChecked = true
             this.setStartCheckedIndicator()
         }
@@ -119,16 +119,6 @@ class SitePermissionsManagePhoneFeatureFragment : Fragment() {
         }
     }
 
-    private val PhoneFeature.action: SitePermissionsRules.Action
-        get() {
-            return when (phoneFeature) {
-                PhoneFeature.CAMERA -> settings.sitePermissionsPhoneFeatureCameraAction
-                PhoneFeature.LOCATION -> settings.sitePermissionsPhoneFeatureLocation
-                PhoneFeature.MICROPHONE -> settings.sitePermissionsPhoneFeatureMicrophoneAction
-                PhoneFeature.NOTIFICATION -> settings.sitePermissionsPhoneFeatureNotificationAction
-            }
-        }
-
     private fun initSettingsButton(rootView: View) {
         val button = rootView.findViewById<Button>(R.id.settings_button)
         button.setOnClickListener {
@@ -144,11 +134,6 @@ class SitePermissionsManagePhoneFeatureFragment : Fragment() {
     }
 
     private fun saveActionInSettings(action: SitePermissionsRules.Action) {
-        when (phoneFeature) {
+        settings.setSitePermissionsPhoneFeatureAction(phoneFeature, action)
-            PhoneFeature.CAMERA -> settings.sitePermissionsPhoneFeatureCameraAction = action
-            PhoneFeature.LOCATION -> settings.sitePermissionsPhoneFeatureLocation = action
-            PhoneFeature.MICROPHONE -> settings.sitePermissionsPhoneFeatureMicrophoneAction = action
-            PhoneFeature.NOTIFICATION -> settings.sitePermissionsPhoneFeatureNotificationAction = action
-        }
     }
 }

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

@@ -39,23 +39,19 @@ import org.mozilla.fenix.R
 import java.text.NumberFormat
 
 /**
- * Preference based on android.preference.SeekBarPreference but uses support preference as a base
+ * Preference based on android.preference.SeekBarPreference but uses support preference as a base.
- * . It contains a title and a [SeekBar] and a SeekBar value [TextView] and an Example [TextView].
+ * It contains a title and a [SeekBar] and a SeekBar value [TextView] and an Example [TextView].
  * The actual preference layout is customizable by setting `android:layout` on the
  * preference widget layout or `seekBarPreferenceStyle` attribute.
  *
- *
  * The [SeekBar] within the preference can be defined adjustable or not by setting `adjustable` attribute.
  * If adjustable, the preference will be responsive to DPAD left/right keys.
  * Otherwise, it skips those keys.
  *
- *
  * The [SeekBar] value view can be shown or disabled by setting `showSeekBarValue`
  * attribute to true or false, respectively.
  *
- *
+ * Other [SeekBar] specific attributes (e.g. `title, summary, defaultValue, min, max`)
- * Other [SeekBar] specific attributes (e.g. `title, summary, defaultValue, min,
- * max`)
  * can be set directly on the preference widget layout.
  */
 class TextPercentageSeekBarPreference @JvmOverloads constructor(
@@ -64,21 +60,32 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
     defStyleAttr: Int = R.attr.seekBarPreferenceStyle,
     defStyleRes: Int = 0
 ) : Preference(context, attrs, defStyleAttr, defStyleRes) {
-    internal /* synthetic access */ var mSeekBarValue: Int = 0
+    /* synthetic access */
-    internal /* synthetic access */ var mMin: Int = 0
+    internal var mSeekBarValue: Int = 0
+    /* synthetic access */
+    internal var mMin: Int = 0
     private var mMax: Int = 0
     private var mSeekBarIncrement: Int = 0
-    internal /* synthetic access */ var mTrackingTouch: Boolean = false
+    /* synthetic access */
-    internal /* synthetic access */ var mSeekBar: SeekBar? = null
+    internal var mTrackingTouch: Boolean = false
+    /* synthetic access */
+    internal var mSeekBar: SeekBar? = null
     private var mSeekBarValueTextView: TextView? = null
     private var mExampleTextTextView: TextView? = null
-    // Whether the SeekBar should respond to the left/right keys
+    /**
-    /* synthetic access */ var isAdjustable: Boolean = false
+     * Whether the SeekBar should respond to the left/right keys
-    // Whether to show the SeekBar value TextView next to the bar
+     */
+    /* synthetic access */
+    var isAdjustable: Boolean = false
+    /**
+     * Whether to show the SeekBar value TextView next to the bar
+     */
     private var mShowSeekBarValue: Boolean = false
-    // Whether the SeekBarPreference should continuously save the Seekbar value while it is being
+    /**
-    // dragged.
+     * Whether the SeekBarPreference should continuously save the Seekbar value while it is being dragged.
-    /* synthetic access */ var updatesContinuously: Boolean = false
+     */
+    /* synthetic access */
+    var updatesContinuously: Boolean = false
     /**
      * Listener reacting to the [SeekBar] changing value by the user
      */
@@ -111,26 +118,21 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
      * to be handled accordingly.
      */
     private val mSeekBarKeyListener = View.OnKeyListener { _, keyCode, event ->
-        if (event.action != KeyEvent.ACTION_DOWN) {
+        return@OnKeyListener if (event.action != KeyEvent.ACTION_DOWN) {
-            return@OnKeyListener false
+            false
-        }
+        } else if (!isAdjustable && (keyCode == KeyEvent.KEYCODE_DPAD_LEFT || keyCode == KeyEvent.KEYCODE_DPAD_RIGHT)) {
-
-        if (!isAdjustable && (keyCode == KeyEvent.KEYCODE_DPAD_LEFT || keyCode == KeyEvent.KEYCODE_DPAD_RIGHT)) {
             // Right or left keys are pressed when in non-adjustable mode; Skip the keys.
-            return@OnKeyListener false
+            false
-        }
+        } else if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER) {
-
+            // We don't want to propagate the click keys down to the SeekBar view since it will
-        // We don't want to propagate the click keys down to the SeekBar view since it will
+            // create the ripple effect for the thumb.
-        // create the ripple effect for the thumb.
+            false
-        if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER) {
+        } else if (mSeekBar == null) {
-            return@OnKeyListener false
-        }
-
-        if (mSeekBar == null) {
             Log.e(TAG, "SeekBar view is null and hence cannot be adjusted.")
-            return@OnKeyListener false
+            false
+        } else {
+            mSeekBar!!.onKeyDown(keyCode, event)
         }
-        mSeekBar!!.onKeyDown(keyCode, event)
     }
 
     /**
@@ -158,13 +160,14 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
      * from the default mKeyProgressIncrement value in [android.widget.AbsSeekBar].
      * @return The amount of increment on the [SeekBar] performed after each user's arrow
      * key press
-     *
-     * Sets the increment amount on the [SeekBar] for each arrow key press.
-     * @param seekBarIncrement The amount to increment or decrement when the user presses an
-     * arrow key.
      */
     var seekBarIncrement: Int
         get() = mSeekBarIncrement
+        /**
+         * Sets the increment amount on the [SeekBar] for each arrow key press.
+         * @param seekBarIncrement The amount to increment or decrement when the user presses an
+         * arrow key.
+         */
         set(seekBarIncrement) {
             if (seekBarIncrement != mSeekBarIncrement) {
                 mSeekBarIncrement = Math.min(mMax - mMin, Math.abs(seekBarIncrement))
@@ -173,10 +176,7 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
         }
 
     /**
-     * Gets the upper bound set on the [SeekBar].
+     * Gets/Sets the upper bound set on the [SeekBar].
-     * @return The upper bound set
-     * Sets the upper bound on the [SeekBar].
-     * @param max The upper bound to set
      */
     var max: Int
         get() = mMax
@@ -195,29 +195,27 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
      * Gets whether the current [SeekBar] value is displayed to the user.
      * @return Whether the current [SeekBar] value is displayed to the user
      * @see .setShowSeekBarValue
-     * Sets whether the current [SeekBar] value is displayed to the user.
-     * @param showSeekBarValue Whether the current [SeekBar] value is displayed to the user
-     * @see .getShowSeekBarValue
      */
     var showSeekBarValue: Boolean
         get() = mShowSeekBarValue
+        /**
+         * Sets whether the current [SeekBar] value is displayed to the user.
+         * @param showSeekBarValue Whether the current [SeekBar] value is displayed to the user
+         * @see .getShowSeekBarValue
+         */
         set(showSeekBarValue) {
             mShowSeekBarValue = showSeekBarValue
             notifyChanged()
         }
 
     /**
-     * Gets the current progress of the [SeekBar].
+     * Gets/Sets the current progress of the [SeekBar].
-     * @return The current progress of the [SeekBar]
-     * Sets the current progress of the [SeekBar].
-     * @param seekBarValue The current progress of the [SeekBar]
      */
     var value: Int
         get() = mSeekBarValue
         set(seekBarValue) = setValueInternal(seekBarValue, true)
 
     init {
-
         val a = context.obtainStyledAttributes(
             attrs, R.styleable.SeekBarPreference, defStyleAttr, defStyleRes
         )
@@ -308,7 +306,8 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
      * Persist the [SeekBar]'s SeekBar value if callChangeListener returns true, otherwise
      * set the [SeekBar]'s value to the stored value.
      */
-    internal /* synthetic access */ fun syncValueInternal(seekBar: SeekBar) {
+    /* synthetic access */
+    internal fun syncValueInternal(seekBar: SeekBar) {
         val seekBarValue = mMin + seekBar.progress
         if (seekBarValue != mSeekBarValue) {
             if (callChangeListener(seekBarValue)) {
@@ -324,9 +323,10 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
     /**
      * Attempts to update the TextView label that displays the current value.
      *
-     * @param value the value to display next to the [SeekBar]
+     * @param labelValue the value to display next to the [SeekBar]
      */
-    internal /* synthetic access */ fun updateLabelValue(labelValue: Int) {
+    /* synthetic access */
+    internal fun updateLabelValue(labelValue: Int) {
         var value = labelValue
         if (mSeekBarValueTextView != null) {
             value = value * STEP_SIZE + MIN_VALUE
@@ -339,9 +339,9 @@ class TextPercentageSeekBarPreference @JvmOverloads constructor(
     /**
      * Attempts to update the example TextView text with text scale size.
      *
-     * @param value the value of text size
+     * @param textValue the value of text size
      */
-    internal /* synthetic access */ fun updateExampleTextValue(textValue: Int) {
+    internal fun updateExampleTextValue(textValue: Int) {
         var value = textValue
         if (mExampleTextTextView != null) {
             value = value * STEP_SIZE + MIN_VALUE

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

@@ -12,6 +12,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.preference.PreferenceFragmentCompat
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.ext.requireComponents
 
 class ThemeFragment : PreferenceFragmentCompat() {
@@ -60,7 +61,7 @@ class ThemeFragment : PreferenceFragmentCompat() {
     }
 
     private fun bindLightTheme() {
-        val keyLightTheme = getString(R.string.pref_key_light_theme)
+        val keyLightTheme = getPreferenceKey(R.string.pref_key_light_theme)
         radioLightTheme = requireNotNull(findPreference(keyLightTheme))
         radioLightTheme.onClickListener {
             setNewTheme(AppCompatDelegate.MODE_NIGHT_NO)
@@ -70,7 +71,7 @@ class ThemeFragment : PreferenceFragmentCompat() {
     @SuppressLint("WrongConstant")
     // Suppressing erroneous lint warning about using MODE_NIGHT_AUTO_BATTERY, a likely library bug
     private fun bindAutoBatteryTheme() {
-        val keyBatteryTheme = getString(R.string.pref_key_auto_battery_theme)
+        val keyBatteryTheme = getPreferenceKey(R.string.pref_key_auto_battery_theme)
         radioAutoBatteryTheme = requireNotNull(findPreference(keyBatteryTheme))
         radioAutoBatteryTheme.onClickListener {
             setNewTheme(AppCompatDelegate.MODE_NIGHT_AUTO_BATTERY)
@@ -78,7 +79,7 @@ class ThemeFragment : PreferenceFragmentCompat() {
     }
 
     private fun bindDarkTheme() {
-        val keyDarkTheme = getString(R.string.pref_key_dark_theme)
+        val keyDarkTheme = getPreferenceKey(R.string.pref_key_dark_theme)
         radioDarkTheme = requireNotNull(findPreference(keyDarkTheme))
         radioDarkTheme.onClickListener {
             setNewTheme(AppCompatDelegate.MODE_NIGHT_YES)
@@ -86,7 +87,7 @@ class ThemeFragment : PreferenceFragmentCompat() {
     }
 
     private fun bindFollowDeviceTheme() {
-        val keyDeviceTheme = getString(R.string.pref_key_follow_device_theme)
+        val keyDeviceTheme = getPreferenceKey(R.string.pref_key_follow_device_theme)
         radioFollowDeviceTheme = requireNotNull(findPreference(keyDeviceTheme))
         if (SDK_INT >= Build.VERSION_CODES.P) {
             radioFollowDeviceTheme.onClickListener {

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

@@ -6,16 +6,27 @@ package org.mozilla.fenix.settings
 
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
-import androidx.navigation.Navigation
+import androidx.navigation.findNavController
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreference
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.getPreferenceKey
-import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.utils.Settings
 
+/**
+ * Displays the toggle for tracking protection and a button to open
+ * the tracking protection [org.mozilla.fenix.exceptions.ExceptionsFragment].
+ */
 class TrackingProtectionFragment : PreferenceFragmentCompat() {
+
+    private val exceptionsClickListener = Preference.OnPreferenceClickListener {
+        val directions = TrackingProtectionFragmentDirections.actionTrackingProtectionFragmentToExceptionsFragment()
+        view!!.findNavController().navigate(directions)
+        true
+    }
+
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.tracking_protection_preferences, rootKey)
     }
@@ -26,34 +37,22 @@ class TrackingProtectionFragment : PreferenceFragmentCompat() {
         (activity as AppCompatActivity).supportActionBar?.show()
 
         // Tracking Protection Switch
-        val trackingProtectionKey =
+        val trackingProtectionKey = getPreferenceKey(R.string.pref_key_tracking_protection)
-            context!!.getPreferenceKey(R.string.pref_key_tracking_protection)
         val preferenceTP = findPreference<SwitchPreference>(trackingProtectionKey)
 
         preferenceTP?.isChecked = Settings.getInstance(context!!).shouldUseTrackingProtection
-        preferenceTP?.onPreferenceChangeListener =
+        preferenceTP?.setOnPreferenceChangeListener<Boolean> { preference, trackingProtectionOn ->
-            Preference.OnPreferenceChangeListener { _, newValue ->
+            Settings.getInstance(preference.context).shouldUseTrackingProtection = trackingProtectionOn
-                Settings.getInstance(requireContext()).shouldUseTrackingProtection = newValue as Boolean
+            with(preference.context.components) {
-                with(requireComponents) {
+                val policy = core.createTrackingProtectionPolicy(trackingProtectionOn)
-                    val policy = core.createTrackingProtectionPolicy(newValue)
+                useCases.settingsUseCases.updateTrackingProtection(policy)
-                    useCases.settingsUseCases.updateTrackingProtection.invoke(policy)
+                useCases.sessionUseCases.reload()
-                    useCases.sessionUseCases.reload.invoke()
-                }
-                true
             }
-
-        val exceptions =
-            context!!.getPreferenceKey(R.string.pref_key_tracking_protection_exceptions)
-        val preferenceExceptions = findPreference<Preference>(exceptions)
-        preferenceExceptions?.onPreferenceClickListener = getClickListenerForExceptions()
-    }
-
-    private fun getClickListenerForExceptions(): Preference.OnPreferenceClickListener {
-        return Preference.OnPreferenceClickListener {
-            val directions =
-                TrackingProtectionFragmentDirections.actionTrackingProtectionFragmentToExceptionsFragment()
-            Navigation.findNavController(view!!).navigate(directions)
             true
         }
+
+        val exceptions = getPreferenceKey(R.string.pref_key_tracking_protection_exceptions)
+        val preferenceExceptions = findPreference<Preference>(exceptions)
+        preferenceExceptions?.onPreferenceClickListener = exceptionsClickListener
     }
 }

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

@@ -11,8 +11,8 @@ import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.text.HtmlCompat
 import androidx.fragment.app.Fragment
-import androidx.navigation.Navigation
+import androidx.navigation.findNavController
-import androidx.navigation.fragment.NavHostFragment.findNavController
+import androidx.navigation.fragment.findNavController
 import kotlinx.android.synthetic.main.fragment_turn_on_sync.view.*
 import mozilla.components.concept.sync.AccountObserver
 import mozilla.components.concept.sync.OAuthAccount
@@ -23,6 +23,22 @@ import org.mozilla.fenix.ext.requireComponents
 
 @SuppressWarnings("TooManyFunctions")
 class TurnOnSyncFragment : Fragment(), AccountObserver {
+
+    private val signInClickListener = View.OnClickListener {
+        requireComponents.services.accountsAuthFeature.beginAuthentication(requireContext())
+        // TODO The sign-in web content populates session history,
+        // so pressing "back" after signing in won't take us back into the settings screen, but rather up the
+        // session history stack.
+        // We could auto-close this tab once we get to the end of the authentication process?
+        // Via an interceptor, perhaps.
+    }
+
+    private val paringClickListener = View.OnClickListener {
+        val directions = TurnOnSyncFragmentDirections.actionTurnOnSyncFragmentToPairFragment()
+        view!!.findNavController().navigate(directions)
+        requireComponents.analytics.metrics.track(Event.SyncAuthScanPairing)
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         requireComponents.analytics.metrics.track(Event.SyncAuthOpened)
@@ -36,7 +52,7 @@ class TurnOnSyncFragment : Fragment(), AccountObserver {
     override fun onResume() {
         super.onResume()
         if (requireComponents.backgroundServices.accountManager.authenticatedAccount() != null) {
-            findNavController(this).popBackStack()
+            findNavController().popBackStack()
             return
         }
 
@@ -47,8 +63,8 @@ class TurnOnSyncFragment : Fragment(), AccountObserver {
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         val view = inflater.inflate(R.layout.fragment_turn_on_sync, container, false)
-        view.signInScanButton.setOnClickListener(getClickListenerForPairing())
+        view.signInScanButton.setOnClickListener(paringClickListener)
-        view.signInEmailButton.setOnClickListener(getClickListenerForSignIn())
+        view.signInEmailButton.setOnClickListener(signInClickListener)
         view.signInInstructions.text = HtmlCompat.fromHtml(
             getString(R.string.sign_in_instructions),
             HtmlCompat.FROM_HTML_MODE_LEGACY
@@ -56,25 +72,6 @@ class TurnOnSyncFragment : Fragment(), AccountObserver {
         return view
     }
 
-    private fun getClickListenerForSignIn(): View.OnClickListener {
-        return View.OnClickListener {
-            requireComponents.services.accountsAuthFeature.beginAuthentication(requireContext())
-            // TODO The sign-in web content populates session history,
-            // so pressing "back" after signing in won't take us back into the settings screen, but rather up the
-            // session history stack.
-            // We could auto-close this tab once we get to the end of the authentication process?
-            // Via an interceptor, perhaps.
-        }
-    }
-
-    private fun getClickListenerForPairing(): View.OnClickListener {
-        return View.OnClickListener {
-            val directions = TurnOnSyncFragmentDirections.actionTurnOnSyncFragmentToPairFragment()
-            Navigation.findNavController(view!!).navigate(directions)
-            requireComponents.analytics.metrics.track(Event.SyncAuthScanPairing)
-        }
-    }
-
     override fun onAuthenticated(account: OAuthAccount, newAccount: Boolean) {
         FenixSnackbar.make(view!!, FenixSnackbar.LENGTH_SHORT)
             .setText(requireContext().getString(R.string.sync_syncing_in_progress))

app/src/main/java/org/mozilla/fenix/settings/account/AccountSettingsFragment.kt

@@ -113,12 +113,12 @@ class AccountSettingsFragment : PreferenceFragmentCompat() {
         accountManager.register(accountStateObserver, this, true)
 
         // Sign out
-        val signOut = context!!.getPreferenceKey(R.string.pref_key_sign_out)
+        val signOut = getPreferenceKey(R.string.pref_key_sign_out)
         val preferenceSignOut = findPreference<Preference>(signOut)
         preferenceSignOut?.onPreferenceClickListener = getClickListenerForSignOut()
 
         // Sync now
-        val syncNow = context!!.getPreferenceKey(R.string.pref_key_sync_now)
+        val syncNow = getPreferenceKey(R.string.pref_key_sync_now)
         val preferenceSyncNow = findPreference<Preference>(syncNow)
         preferenceSyncNow?.let {
             it.onPreferenceClickListener = getClickListenerForSyncNow()
@@ -134,7 +134,7 @@ class AccountSettingsFragment : PreferenceFragmentCompat() {
 
         // Device Name
         val deviceConstellation = accountManager.authenticatedAccount()?.deviceConstellation()
-        val deviceNameKey = context!!.getPreferenceKey(R.string.pref_key_sync_device_name)
+        val deviceNameKey = getPreferenceKey(R.string.pref_key_sync_device_name)
         findPreference<EditTextPreference>(deviceNameKey)?.apply {
             onPreferenceChangeListener = getChangeListenerForDeviceName()
             deviceConstellation?.state()?.currentDevice?.let { device ->
@@ -211,7 +211,7 @@ class AccountSettingsFragment : PreferenceFragmentCompat() {
     private val syncStatusObserver = object : SyncStatusObserver {
         override fun onStarted() {
             lifecycleScope.launch {
-                val pref = findPreference<Preference>(context!!.getPreferenceKey(R.string.pref_key_sync_now))
+                val pref = findPreference<Preference>(getPreferenceKey(R.string.pref_key_sync_now))
                 view?.announceForAccessibility(getString(R.string.sync_syncing_in_progress))
                 pref?.title = getString(R.string.sync_syncing_in_progress)
                 pref?.isEnabled = false
@@ -221,7 +221,7 @@ class AccountSettingsFragment : PreferenceFragmentCompat() {
         // Sync stopped successfully.
         override fun onIdle() {
             lifecycleScope.launch {
-                val pref = findPreference<Preference>(context!!.getPreferenceKey(R.string.pref_key_sync_now))
+                val pref = findPreference<Preference>(getPreferenceKey(R.string.pref_key_sync_now))
                 pref?.let {
                     pref.title = getString(R.string.preferences_sync_now)
                     pref.isEnabled = true
@@ -235,7 +235,7 @@ class AccountSettingsFragment : PreferenceFragmentCompat() {
         // Sync stopped after encountering a problem.
         override fun onError(error: Exception?) {
             lifecycleScope.launch {
-                val pref = findPreference<Preference>(context!!.getPreferenceKey(R.string.pref_key_sync_now))
+                val pref = findPreference<Preference>(getPreferenceKey(R.string.pref_key_sync_now))
                 pref?.let {
                     pref.title = getString(R.string.preferences_sync_now)
                     pref.isEnabled = true
@@ -256,7 +256,7 @@ class AccountSettingsFragment : PreferenceFragmentCompat() {
     }
 
     private fun updateDeviceName(state: AccountSettingsState) {
-        val deviceNameKey = context!!.getPreferenceKey(R.string.pref_key_sync_device_name)
+        val deviceNameKey = getPreferenceKey(R.string.pref_key_sync_device_name)
         val preferenceDeviceName = findPreference<Preference>(deviceNameKey)
         preferenceDeviceName?.summary = state.deviceName
     }
@@ -280,7 +280,7 @@ class AccountSettingsFragment : PreferenceFragmentCompat() {
             )
         }
 
-        val syncNow = context!!.getPreferenceKey(R.string.pref_key_sync_now)
+        val syncNow = getPreferenceKey(R.string.pref_key_sync_now)
         findPreference<Preference>(syncNow)?.summary = value
     }
 

app/src/main/java/org/mozilla/fenix/settings/quicksettings/QuickSettingsComponent.kt

@@ -48,10 +48,10 @@ class QuickSettingsComponent(
         return if (sitePermissions == null) {
             val settings = Settings.getInstance(context)
             val origin = requireNotNull(url.toUri().host)
-            var location = settings.sitePermissionsPhoneFeatureLocation.toStatus()
+            var location = settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.LOCATION).toStatus()
-            var camera = settings.sitePermissionsPhoneFeatureCameraAction.toStatus()
+            var camera = settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.CAMERA).toStatus()
-            var microphone = settings.sitePermissionsPhoneFeatureMicrophoneAction.toStatus()
+            var microphone = settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.MICROPHONE).toStatus()
-            var notification = settings.sitePermissionsPhoneFeatureNotificationAction.toStatus()
+            var notification = settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.NOTIFICATION).toStatus()
 
             when (featurePhone) {
                 PhoneFeature.CAMERA -> camera = camera.toggle()

app/src/main/java/org/mozilla/fenix/settings/sharedpreferences/SitePermissionsRulesActionPreference.kt

@@ -1,45 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-package org.mozilla.fenix.settings.sharedpreferences
-
-import mozilla.components.feature.sitepermissions.SitePermissionsRules
-import java.security.InvalidParameterException
-import kotlin.properties.ReadWriteProperty
-import kotlin.reflect.KProperty
-
-private class SitePermissionsRulesActionPreference(
-    private val key: String
-) : ReadWriteProperty<PreferencesHolder, SitePermissionsRules.Action> {
-
-    override fun getValue(thisRef: PreferencesHolder, property: KProperty<*>): SitePermissionsRules.Action =
-        intToAction(thisRef.preferences.getInt(key, ASK_TO_ALLOW_INT))
-
-    override fun setValue(thisRef: PreferencesHolder, property: KProperty<*>, value: SitePermissionsRules.Action) {
-        thisRef.preferences.edit().putInt(key, actionToInt(value)).apply()
-    }
-
-    companion object {
-        private const val BLOCKED_INT = 0
-        private const val ASK_TO_ALLOW_INT = 1
-
-        private fun actionToInt(action: SitePermissionsRules.Action) = when (action) {
-            SitePermissionsRules.Action.BLOCKED -> BLOCKED_INT
-            SitePermissionsRules.Action.ASK_TO_ALLOW -> ASK_TO_ALLOW_INT
-        }
-
-        private fun intToAction(action: Int) = when (action) {
-            BLOCKED_INT -> SitePermissionsRules.Action.BLOCKED
-            ASK_TO_ALLOW_INT -> SitePermissionsRules.Action.ASK_TO_ALLOW
-            else -> throw InvalidParameterException("$action is not a valid SitePermissionsRules.Action")
-        }
-    }
-}
-
-/**
- * Property delegate for getting and setting a [SitePermissionsRules.Action] preference.
- */
-fun sitePermissionsRulesActionPreference(
-    key: String
-): ReadWriteProperty<PreferencesHolder, SitePermissionsRules.Action> = SitePermissionsRulesActionPreference(key)

app/src/main/java/org/mozilla/fenix/utils/Settings.kt

@@ -14,9 +14,10 @@ import org.mozilla.fenix.BuildConfig
 import org.mozilla.fenix.Config
 import org.mozilla.fenix.R
 import org.mozilla.fenix.ext.getPreferenceKey
+import org.mozilla.fenix.settings.PhoneFeature
 import org.mozilla.fenix.settings.sharedpreferences.PreferencesHolder
 import org.mozilla.fenix.settings.sharedpreferences.booleanPreference
-import org.mozilla.fenix.settings.sharedpreferences.sitePermissionsRulesActionPreference
+import java.security.InvalidParameterException
 
 /**
  * A simple wrapper for SharedPreferences that makes reading preference a little bit easier.
@@ -29,6 +30,19 @@ class Settings private constructor(
     companion object {
         const val autoBounceMaximumCount = 2
         const val FENIX_PREFERENCES = "fenix_preferences"
+        private const val BLOCKED_INT = 0
+        private const val ASK_TO_ALLOW_INT = 1
+
+        private fun actionToInt(action: SitePermissionsRules.Action) = when (action) {
+            SitePermissionsRules.Action.BLOCKED -> BLOCKED_INT
+            SitePermissionsRules.Action.ASK_TO_ALLOW -> ASK_TO_ALLOW_INT
+        }
+
+        private fun intToAction(action: Int) = when (action) {
+            BLOCKED_INT -> SitePermissionsRules.Action.BLOCKED
+            ASK_TO_ALLOW_INT -> SitePermissionsRules.Action.ASK_TO_ALLOW
+            else -> throw InvalidParameterException("$action is not a valid SitePermissionsRules.Action")
+        }
 
         var instance: Settings? = null
 
@@ -147,28 +161,19 @@ class Settings private constructor(
         default = true
     )
 
-    var sitePermissionsPhoneFeatureCameraAction by sitePermissionsRulesActionPreference(
+    fun getSitePermissionsPhoneFeatureAction(feature: PhoneFeature) =
-        appContext.getPreferenceKey(R.string.pref_key_phone_feature_camera)
+        intToAction(preferences.getInt(feature.getPreferenceKey(appContext), ASK_TO_ALLOW_INT))
-    )
 
-    var sitePermissionsPhoneFeatureMicrophoneAction by sitePermissionsRulesActionPreference(
+    fun setSitePermissionsPhoneFeatureAction(feature: PhoneFeature, value: SitePermissionsRules.Action) {
-        appContext.getPreferenceKey(R.string.pref_key_phone_feature_microphone)
+        preferences.edit().putInt(feature.getPreferenceKey(appContext), actionToInt(value)).apply()
-    )
+    }
-
-    var sitePermissionsPhoneFeatureNotificationAction by sitePermissionsRulesActionPreference(
-        appContext.getPreferenceKey(R.string.pref_key_phone_feature_notification)
-    )
-
-    var sitePermissionsPhoneFeatureLocation by sitePermissionsRulesActionPreference(
-        appContext.getPreferenceKey(R.string.pref_key_phone_feature_location)
-    )
 
     fun getSitePermissionsCustomSettingsRules(): SitePermissionsRules {
         return SitePermissionsRules(
-            notification = sitePermissionsPhoneFeatureNotificationAction,
+            notification = getSitePermissionsPhoneFeatureAction(PhoneFeature.NOTIFICATION),
-            microphone = sitePermissionsPhoneFeatureMicrophoneAction,
+            microphone = getSitePermissionsPhoneFeatureAction(PhoneFeature.MICROPHONE),
-            location = sitePermissionsPhoneFeatureLocation,
+            location = getSitePermissionsPhoneFeatureAction(PhoneFeature.LOCATION),
-            camera = sitePermissionsPhoneFeatureCameraAction
+            camera = getSitePermissionsPhoneFeatureAction(PhoneFeature.CAMERA)
         )
     }
 

app/src/main/res/layout/fragment_turn_on_sync.xml

@@ -2,10 +2,12 @@
 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.core.widget.NestedScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    xmlns:tools="http://schemas.android.com/tools"
     android:fillViewport="true">
 
     <androidx.constraintlayout.widget.ConstraintLayout
@@ -45,7 +47,7 @@
             android:layout_height="wrap_content"
             android:layout_marginTop="16dp"
             android:gravity="center"
-            android:text="@string/sign_in_instructions"
+            tools:text="@string/sign_in_instructions"
             android:textColor="?primaryText"
             android:textSize="16sp"
             app:layout_constraintEnd_toEndOf="parent"
@@ -84,4 +86,4 @@
             app:layout_constraintTop_toBottomOf="@id/signInScanButton" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>
-</androidx.core.widget.NestedScrollView>
+</androidx.core.widget.NestedScrollView>

app/src/test/java/org/mozilla/fenix/settings/sharedpreferences/SitePermissionsRulesActionPreferenceTest.kt

@@ -1,73 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-package org.mozilla.fenix.settings.sharedpreferences
-
-import android.content.SharedPreferences
-import io.mockk.every
-import io.mockk.just
-import io.mockk.mockk
-import io.mockk.runs
-import io.mockk.verify
-import mozilla.components.feature.sitepermissions.SitePermissionsRules
-import org.junit.Assert.assertEquals
-import org.junit.Before
-import org.junit.Test
-
-class SitePermissionsRulesActionPreferenceTest {
-
-    private lateinit var sharedPrefs: SharedPreferences
-    private lateinit var editor: SharedPreferences.Editor
-
-    @Before
-    fun setup() {
-        sharedPrefs = mockk(relaxed = true)
-        editor = mockk()
-
-        every { sharedPrefs.edit() } returns editor
-        every { editor.putInt(any(), any()) } returns editor
-        every { editor.apply() } just runs
-    }
-
-    @Test
-    fun `getter returns action from shared preferences`() {
-        val holder = object : PreferencesHolder {
-            override val preferences = sharedPrefs
-            val test by sitePermissionsRulesActionPreference("test_preference_key")
-        }
-        every { sharedPrefs.getInt("test_preference_key", 1) } returns 0
-
-        assertEquals(SitePermissionsRules.Action.BLOCKED, holder.test)
-        verify { sharedPrefs.getInt("test_preference_key", 1) }
-    }
-
-    @Test
-    fun `setter applies boolean to shared preferences`() {
-        val holder = object : PreferencesHolder {
-            override val preferences = sharedPrefs
-            var test by sitePermissionsRulesActionPreference("pref")
-        }
-        holder.test = SitePermissionsRules.Action.BLOCKED
-
-        verify { editor.putInt("pref", 0) }
-        verify { editor.apply() }
-
-        holder.test = SitePermissionsRules.Action.ASK_TO_ALLOW
-
-        verify { editor.putInt("pref", 1) }
-        verify { editor.apply() }
-    }
-
-    @Test
-    fun `getter defaults to ASK_TO_ALLOW`() {
-        every { sharedPrefs.getInt("key", 1) } returns 1
-        val holder = object : PreferencesHolder {
-            override val preferences = sharedPrefs
-            val action by sitePermissionsRulesActionPreference("key")
-        }
-
-        assertEquals(SitePermissionsRules.Action.ASK_TO_ALLOW, holder.action)
-        verify { sharedPrefs.getInt("key", 1) }
-    }
-}

app/src/test/java/org/mozilla/fenix/utils/SettingsTest.kt

@@ -18,6 +18,7 @@ import org.junit.Test
 import org.junit.runner.RunWith
 import org.mozilla.fenix.TestApplication
 import org.mozilla.fenix.ext.clearAndCommit
+import org.mozilla.fenix.settings.PhoneFeature
 import org.robolectric.annotation.Config
 
 @ObsoleteCoroutinesApi
@@ -231,52 +232,52 @@ class SettingsTest {
     fun sitePermissionsPhoneFeatureCameraAction() {
         // When just created
         // Then
-        assertEquals(ASK_TO_ALLOW, settings.sitePermissionsPhoneFeatureCameraAction)
+        assertEquals(ASK_TO_ALLOW, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.CAMERA))
 
         // When
-        settings.sitePermissionsPhoneFeatureCameraAction = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.CAMERA, BLOCKED)
 
         // Then
-        assertEquals(BLOCKED, settings.sitePermissionsPhoneFeatureCameraAction)
+        assertEquals(BLOCKED, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.CAMERA))
     }
 
     @Test
     fun sitePermissionsPhoneFeatureMicrophoneAction() {
         // When just created
         // Then
-        assertEquals(ASK_TO_ALLOW, settings.sitePermissionsPhoneFeatureMicrophoneAction)
+        assertEquals(ASK_TO_ALLOW, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.MICROPHONE))
 
         // When
-        settings.sitePermissionsPhoneFeatureMicrophoneAction = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.MICROPHONE, BLOCKED)
 
         // Then
-        assertEquals(BLOCKED, settings.sitePermissionsPhoneFeatureMicrophoneAction)
+        assertEquals(BLOCKED, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.MICROPHONE))
     }
 
     @Test
     fun sitePermissionsPhoneFeatureNotificationAction() {
         // When just created
         // Then
-        assertEquals(ASK_TO_ALLOW, settings.sitePermissionsPhoneFeatureNotificationAction)
+        assertEquals(ASK_TO_ALLOW, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.NOTIFICATION))
 
         // When
-        settings.sitePermissionsPhoneFeatureNotificationAction = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.NOTIFICATION, BLOCKED)
 
         // Then
-        assertEquals(BLOCKED, settings.sitePermissionsPhoneFeatureNotificationAction)
+        assertEquals(BLOCKED, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.NOTIFICATION))
     }
 
     @Test
     fun sitePermissionsPhoneFeatureLocation() {
         // When just created
         // Then
-        assertEquals(ASK_TO_ALLOW, settings.sitePermissionsPhoneFeatureLocation)
+        assertEquals(ASK_TO_ALLOW, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.LOCATION))
 
         // When
-        settings.sitePermissionsPhoneFeatureLocation = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.LOCATION, BLOCKED)
 
         // Then
-        assertEquals(BLOCKED, settings.sitePermissionsPhoneFeatureLocation)
+        assertEquals(BLOCKED, settings.getSitePermissionsPhoneFeatureAction(PhoneFeature.LOCATION))
     }
 
     @Test
@@ -292,7 +293,7 @@ class SettingsTest {
     @Test
     fun getSitePermissionsCustomSettingsRules_camera() {
         // When
-        settings.sitePermissionsPhoneFeatureCameraAction = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.CAMERA, BLOCKED)
 
         // Then
         assertEquals(
@@ -304,7 +305,7 @@ class SettingsTest {
     @Test
     fun getSitePermissionsCustomSettingsRules_notification() {
         // When
-        settings.sitePermissionsPhoneFeatureNotificationAction = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.NOTIFICATION, BLOCKED)
 
         // Then
         assertEquals(
@@ -316,7 +317,7 @@ class SettingsTest {
     @Test
     fun getSitePermissionsCustomSettingsRules_location() {
         // When
-        settings.sitePermissionsPhoneFeatureLocation = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.LOCATION, BLOCKED)
 
         // Then
         assertEquals(
@@ -328,7 +329,7 @@ class SettingsTest {
     @Test
     fun getSitePermissionsCustomSettingsRules_microphone() {
         // When
-        settings.sitePermissionsPhoneFeatureMicrophoneAction = BLOCKED
+        settings.setSitePermissionsPhoneFeatureAction(PhoneFeature.MICROPHONE, BLOCKED)
 
         // Then
         assertEquals(