Add a SysUI fag for WallpaperPicker full screen preview

Bug: 242908637
Test: manually verified the right UI in the picker
Change-Id: I49985dc26c925141e5f2c43fc59d83390d6a7dd3

packages/SystemUI/customization/src/com/android/systemui/shared/customization/data/content/CustomizationProviderContract.kt

@@ -178,6 +178,9 @@ object CustomizationProviderContract {
         /** Flag denoting whether the customizable clocks feature is enabled. */
         const val FLAG_NAME_CUSTOM_CLOCKS_ENABLED = "is_custom_clocks_feature_enabled"
 
+        /** Flag denoting whether the Wallpaper preview should use the full screen UI. */
+        const val FLAG_NAME_WALLPAPER_FULLSCREEN_PREVIEW = "wallpaper_fullscreen_preview"
+
         object Columns {
             /** String. Unique ID for the flag. */
             const val NAME = "name"

packages/SystemUI/src/com/android/systemui/flags/Flags.kt

@@ -214,6 +214,11 @@ object Flags {
     val ENABLE_WALLET_CONTEXTUAL_LOYALTY_CARDS =
         unreleasedFlag(226, "enable_wallet_contextual_loyalty_cards", teamfood = false)
 
+    // TODO(b/242908637): Tracking Bug
+    @JvmField
+    val WALLPAPER_FULLSCREEN_PREVIEW =
+        unreleasedFlag(227, "wallpaper_fullscreen_preview", teamfood = true)
+
     // 300 - power menu
     // TODO(b/254512600): Tracking Bug
     @JvmField val POWER_MENU_LITE = releasedFlag(300, "power_menu_lite")

packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractor.kt

@@ -363,6 +363,10 @@ constructor(
                 name = Contract.FlagsTable.FLAG_NAME_CUSTOM_CLOCKS_ENABLED,
                 value = featureFlags.isEnabled(Flags.LOCKSCREEN_CUSTOM_CLOCKS),
             ),
+            KeyguardPickerFlag(
+                name = Contract.FlagsTable.FLAG_NAME_WALLPAPER_FULLSCREEN_PREVIEW,
+                value = featureFlags.isEnabled(Flags.WALLPAPER_FULLSCREEN_PREVIEW),
+            ),
         )
     }
 

packages/SystemUI/tests/src/com/android/systemui/keyguard/CustomizationProviderTest.kt

@@ -173,6 +173,7 @@ class CustomizationProviderTest : SysuiTestCase() {
                         set(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES, true)
                         set(Flags.LOCKSCREEN_CUSTOM_CLOCKS, true)
                         set(Flags.REVAMPED_WALLPAPER_UI, true)
+                        set(Flags.WALLPAPER_FULLSCREEN_PREVIEW, true)
                     },
                 repository = { quickAffordanceRepository },
                 launchAnimator = launchAnimator,