[fenix] For https://github.com/mozilla-mobile/fenix/issues/6313 - Set session ClearColor through Engine DefaultSettings

app/src/main/java/org/mozilla/fenix/FeatureFlags.kt

@@ -26,11 +26,6 @@ object FeatureFlags {
      */
     val showGridViewInTabsSettings = Config.channel.isNightlyOrDebug
 
-    /**
-     * Enables wait til first contentful paint
-     */
-    val waitUntilPaintToDraw = Config.channel.isNightlyOrDebug
-
     /**
      * Enables downloads with external download managers.
      */

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -247,9 +247,7 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
             fragment = WeakReference(this),
             engineView = WeakReference(engineView),
             swipeRefresh = WeakReference(swipeRefresh),
-            viewLifecycleScope = WeakReference(viewLifecycleOwner.lifecycleScope),
+            viewLifecycleScope = WeakReference(viewLifecycleOwner.lifecycleScope)
-            settings = context.components.settings,
-            firstContentfulHappened = ::didFirstContentfulHappen
         ).apply {
             beginAnimateInIfNecessary()
         }
@@ -659,28 +657,6 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
                     .collect { tab -> pipModeChanged(tab) }
             }
 
-            if (context.settings().waitToShowPageUntilFirstPaint) {
-                store.flowScoped(viewLifecycleOwner) { flow ->
-                    flow.mapNotNull { state ->
-                        state.findTabOrCustomTabOrSelectedTab(
-                            customTabSessionId
-                        )
-                    }
-                        .ifChanged { it.content.firstContentfulPaint }
-                        .collect {
-                            val showEngineView =
-                                it.content.firstContentfulPaint || it.content.progress == LOADING_PROGRESS_COMPLETE
-
-                            if (showEngineView) {
-                                engineView?.asView()?.isVisible = true
-                                swipeRefresh?.alpha = 1f
-                            } else {
-                                engineView?.asView()?.isVisible = false
-                            }
-                        }
-                }
-            }
-
             view.swipeRefresh.isEnabled =
                 FeatureFlags.pullToRefreshEnabled && context.settings().isPullToRefreshEnabledInBrowser
             if (view.swipeRefresh.isEnabled) {
@@ -1153,15 +1129,6 @@ abstract class BaseBrowserFragment : Fragment(), UserInteractionHandler, Session
         }
     }
 
-    private fun didFirstContentfulHappen() =
-        if (components.settings.waitToShowPageUntilFirstPaint) {
-            val tab =
-                components.core.store.state.findTabOrCustomTabOrSelectedTab(customTabSessionId)
-            tab?.content?.firstContentfulPaint ?: false
-        } else {
-            true
-        }
-
     /*
      * Dereference these views when the fragment view is destroyed to prevent memory leaks
      */

app/src/main/java/org/mozilla/fenix/browser/BrowserAnimator.kt

@@ -18,7 +18,6 @@ import mozilla.components.concept.engine.EngineView
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.toolbar.ToolbarPosition
 import org.mozilla.fenix.ext.settings
-import org.mozilla.fenix.utils.Settings
 import java.lang.ref.WeakReference
 
 /**
@@ -29,9 +28,7 @@ class BrowserAnimator(
     private val fragment: WeakReference<Fragment>,
     private val engineView: WeakReference<EngineView>,
     private val swipeRefresh: WeakReference<View>,
-    private val viewLifecycleScope: WeakReference<LifecycleCoroutineScope>,
+    private val viewLifecycleScope: WeakReference<LifecycleCoroutineScope>
-    private val settings: Settings,
-    private val firstContentfulHappened: () -> Boolean
 ) {
 
     private val unwrappedEngineView: EngineView?
@@ -41,19 +38,10 @@ class BrowserAnimator(
         get() = swipeRefresh.get()
 
     fun beginAnimateInIfNecessary() {
-        if (settings.waitToShowPageUntilFirstPaint) {
-            if (firstContentfulHappened()) {
         viewLifecycleScope.get()?.launch {
             delay(ANIMATION_DELAY)
             unwrappedEngineView?.asView()?.visibility = View.VISIBLE
             unwrappedSwipeRefresh?.background = null
-                    unwrappedSwipeRefresh?.alpha = 1f
-                }
-            }
-        } else {
-            unwrappedSwipeRefresh?.alpha = 1f
-            unwrappedEngineView?.asView()?.visibility = View.VISIBLE
-            unwrappedSwipeRefresh?.background = null
         }
     }
 

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

@@ -8,6 +8,7 @@ import GeckoProvider
 import android.content.Context
 import android.content.res.Configuration
 import android.os.StrictMode
+import androidx.core.content.ContextCompat
 import io.sentry.Sentry
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
@@ -21,8 +22,8 @@ import mozilla.components.browser.session.SessionManager
 import mozilla.components.browser.session.engine.EngineMiddleware
 import mozilla.components.browser.session.storage.SessionStorage
 import mozilla.components.browser.session.undo.UndoMiddleware
-import mozilla.components.browser.state.action.RestoreCompleteAction
 import mozilla.components.browser.state.action.RecentlyClosedAction
+import mozilla.components.browser.state.action.RestoreCompleteAction
 import mozilla.components.browser.state.state.BrowserState
 import mozilla.components.browser.state.store.BrowserStore
 import mozilla.components.browser.storage.sync.PlacesBookmarksStorage
@@ -101,7 +102,11 @@ class Core(
             fontInflationEnabled = context.settings().shouldUseAutoSize,
             suspendMediaWhenInactive = false,
             forceUserScalableContent = context.settings().forceEnableZoom,
-            loginAutofillEnabled = context.settings().shouldAutofillLogins
+            loginAutofillEnabled = context.settings().shouldAutofillLogins,
+            clearColor = ContextCompat.getColor(
+                context,
+                R.color.foundation_normal_theme
+            )
         )
 
         GeckoEngine(
@@ -230,7 +235,8 @@ class Core(
                 // Now that we have restored our previous state (if there's one) let's remove timed out tabs
                 if (!context.settings().manuallyCloseTabs) {
                     store.state.tabs.filter {
-                        (System.currentTimeMillis() - it.lastAccess) > context.settings().getTabTimeout()
+                        (System.currentTimeMillis() - it.lastAccess) > context.settings()
+                            .getTabTimeout()
                     }.forEach {
                         val session = sessionManager.findSessionById(it.id)
                         if (session != null) {

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

@@ -31,12 +31,6 @@ class SecretSettingsFragment : PreferenceFragmentCompat() {
             onPreferenceChangeListener = SharedPreferenceUpdater()
         }
 
-        requirePreference<SwitchPreference>(R.string.pref_key_wait_first_paint).apply {
-            isVisible = FeatureFlags.waitUntilPaintToDraw
-            isChecked = context.settings().waitToShowPageUntilFirstPaint
-            onPreferenceChangeListener = SharedPreferenceUpdater()
-        }
-
         requirePreference<SwitchPreference>(R.string.pref_key_synced_tabs_tabs_tray).apply {
             isVisible = FeatureFlags.syncedTabsInTabsTray
             isChecked = context.settings().syncedTabsInTabsTray

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

@@ -129,12 +129,6 @@ class Settings(private val appContext: Context) : PreferencesHolder {
         featureFlag = FeatureFlags.showGridViewInTabsSettings
     )
 
-    var waitToShowPageUntilFirstPaint by featureFlagPreference(
-        appContext.getPreferenceKey(R.string.pref_key_wait_first_paint),
-        default = false,
-        featureFlag = FeatureFlags.waitUntilPaintToDraw
-    )
-
     var syncedTabsInTabsTray by featureFlagPreference(
         appContext.getPreferenceKey(R.string.pref_key_synced_tabs_tabs_tray),
         default = false,

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

@@ -26,7 +26,6 @@
                 android:id="@+id/swipeRefresh"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:alpha="0"
                 app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
                 <mozilla.components.concept.engine.EngineView

app/src/main/res/values/preference_keys.xml

@@ -202,8 +202,6 @@
     <string name="pref_key_migrating_from_fenix_tip" translatable="false">pref_key_migrating_from_fenix_tip</string>
     <string name="pref_key_master_password_tip" translatable="false">pref_key_master_password_tip</string>
 
-    <string name="pref_key_wait_first_paint" translatable="false">pref_key_wait_first_paint</string>
-
     <string name="pref_key_synced_tabs_tabs_tray" translatable="false">pref_key_synced_tabs_tabs_tray</string>
 
     <string name="pref_key_debug_settings" translatable="false">pref_key_debug_settings</string>

app/src/main/res/values/static_strings.xml

@@ -34,8 +34,6 @@
     <string name="preferences_debug_settings">Secret Settings</string>
     <!-- Label for the show grid view in tabs setting preference -->
     <string name="preferences_debug_settings_show_grid_view_tabs_settings">Show Grid View in Tabs Settings</string>
-    <!-- Label for the wait until first paint preference -->
-    <string name="preferences_debug_settings_wait_first_paint">Wait Until First Paint To Show Page Content</string>
     <!-- Label for showing Synced Tabs in the tabs tray -->
     <string name="preferences_debug_synced_tabs_tabs_tray">Show Synced Tabs in the tabs tray</string>
 

app/src/main/res/xml/secret_settings_preferences.xml

@@ -9,11 +9,6 @@
         android:key="@string/pref_key_show_grid_view_tabs_settings"
         android:title="@string/preferences_debug_settings_show_grid_view_tabs_settings"
         app:iconSpaceReserved="false" />
-    <SwitchPreference
-        android:defaultValue="false"
-        android:key="@string/pref_key_wait_first_paint"
-        android:title="@string/preferences_debug_settings_wait_first_paint"
-        app:iconSpaceReserved="false" />
     <SwitchPreference
         android:defaultValue="false"
         android:key="@string/pref_key_synced_tabs_tabs_tray"