Add a flag to allow all widgets on communal hub by default.

Bug: 328261690
Flag: ACONFIG com.android.settingslib.flags.allow_all_widgets_on_lockscreen_by_default STAGING
Test: atest CommunalSettingsRepositoryImplTest
Change-Id: I5460c32cdb759614d83a2d2c2e07f0c93fb54e88

Change-Id: If0d468509b5b0d8d50b571d10eba1f1b54e6b46f
diff --git a/packages/SettingsLib/aconfig/settingslib.aconfig b/packages/SettingsLib/aconfig/settingslib.aconfig
index 89f54d9..9c0d29d 100644
--- a/packages/SettingsLib/aconfig/settingslib.aconfig
+++ b/packages/SettingsLib/aconfig/settingslib.aconfig
@@ -62,3 +62,10 @@
         purpose: PURPOSE_BUGFIX
     }
 }
+
+flag {
+  name: "allow_all_widgets_on_lockscreen_by_default"
+  namespace: "systemui"
+  description: "Allow all widgets on the lock screen by default."
+  bug: "328261690"
+}
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/communal/data/repository/CommunalSettingsRepositoryImplTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/communal/data/repository/CommunalSettingsRepositoryImplTest.kt
index ce7b60e..325a324 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/communal/data/repository/CommunalSettingsRepositoryImplTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/communal/data/repository/CommunalSettingsRepositoryImplTest.kt
@@ -29,6 +29,7 @@
 import android.provider.Settings
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.SmallTest
+import com.android.settingslib.flags.Flags.FLAG_ALLOW_ALL_WIDGETS_ON_LOCKSCREEN_BY_DEFAULT
 import com.android.systemui.Flags.FLAG_COMMUNAL_HUB
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.broadcast.broadcastDispatcher
@@ -202,6 +203,18 @@
                 .isEqualTo(AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD)
         }
 
+    @EnableFlags(FLAG_COMMUNAL_HUB, FLAG_ALLOW_ALL_WIDGETS_ON_LOCKSCREEN_BY_DEFAULT)
+    @Test
+    fun hubShowsAllWidgetsByDefaultWhenFlagEnabled() =
+        testScope.runTest {
+            val setting by collectLastValue(underTest.getWidgetCategories(PRIMARY_USER))
+            assertThat(setting?.categories)
+                .isEqualTo(
+                    AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD +
+                        AppWidgetProviderInfo.WIDGET_CATEGORY_HOME_SCREEN
+                )
+        }
+
     private fun setKeyguardFeaturesDisabled(user: UserInfo, disabledFlags: Int) {
         whenever(kosmos.devicePolicyManager.getKeyguardDisabledFeatures(nullable(), eq(user.id)))
             .thenReturn(disabledFlags)
diff --git a/packages/SystemUI/src/com/android/systemui/communal/data/model/CommunalWidgetCategories.kt b/packages/SystemUI/src/com/android/systemui/communal/data/model/CommunalWidgetCategories.kt
index 03f54c8..5cd15f2 100644
--- a/packages/SystemUI/src/com/android/systemui/communal/data/model/CommunalWidgetCategories.kt
+++ b/packages/SystemUI/src/com/android/systemui/communal/data/model/CommunalWidgetCategories.kt
@@ -17,15 +17,23 @@
 package com.android.systemui.communal.data.model
 
 import android.appwidget.AppWidgetProviderInfo
+import com.android.settingslib.flags.Flags.allowAllWidgetsOnLockscreenByDefault
 
 /**
  * The widget categories to display on communal hub (where categories is a bitfield with values that
  * match those in {@link AppWidgetProviderInfo}).
  */
 @JvmInline
-value class CommunalWidgetCategories(
-    // The default is keyguard widgets.
-    val categories: Int = AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD
-) {
+value class CommunalWidgetCategories(val categories: Int = defaultCategories) {
     fun contains(category: Int) = (categories and category) == category
+
+    companion object {
+        val defaultCategories: Int
+            get() {
+                return AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD or
+                    if (allowAllWidgetsOnLockscreenByDefault())
+                        AppWidgetProviderInfo.WIDGET_CATEGORY_HOME_SCREEN
+                    else 0
+            }
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalSettingsRepository.kt b/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalSettingsRepository.kt
index 9debe0e..88cb64c 100644
--- a/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalSettingsRepository.kt
+++ b/packages/SystemUI/src/com/android/systemui/communal/data/repository/CommunalSettingsRepository.kt
@@ -18,7 +18,6 @@
 
 import android.app.admin.DevicePolicyManager
 import android.app.admin.DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL
-import android.appwidget.AppWidgetProviderInfo
 import android.content.IntentFilter
 import android.content.pm.UserInfo
 import android.provider.Settings
@@ -108,10 +107,9 @@
             .onStart { emit(Unit) }
             .map {
                 CommunalWidgetCategories(
-                    // The default is to show only keyguard widgets.
                     secureSettings.getIntForUser(
                         GLANCEABLE_HUB_CONTENT_SETTING,
-                        AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD,
+                        CommunalWidgetCategories.defaultCategories,
                         user.id
                     )
                 )
diff --git a/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalSettingsInteractor.kt b/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalSettingsInteractor.kt
index f9de609..3e5126a 100644
--- a/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalSettingsInteractor.kt
+++ b/packages/SystemUI/src/com/android/systemui/communal/domain/interactor/CommunalSettingsInteractor.kt
@@ -75,7 +75,7 @@
                 scope = bgScope,
                 // Start this eagerly since the value can be accessed synchronously.
                 started = SharingStarted.Eagerly,
-                initialValue = CommunalWidgetCategories().categories
+                initialValue = CommunalWidgetCategories.defaultCategories
             )
 
     private val workProfileUserInfoCallbackFlow: Flow<UserInfo?> = conflatedCallbackFlow {