Revert "[Unfold animation] Do not show dark vignette when folding"

Revert submission 21009614-fold-no-vignette

Reason for revert: Duplicate flag ids. Please change "2600" to something else.

Reverted changes: /q/submissionid:21009614-fold-no-vignette

Change-Id: I16e71542ed3179bc37feefbb5fc4d7ac42cbfdd7

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

@@ -530,13 +530,6 @@ object Flags {
     val OUTPUT_SWITCHER_SHOW_API_ENABLED =
         unreleasedFlag(2503, "output_switcher_show_api_enabled", teamfood = true)
 
-    // 2600 - unfold transitions
-    // TODO(b/265764985): Tracking Bug
-    @Keep
-    @JvmField
-    val ENABLE_DARK_VIGNETTE_WHEN_FOLDING =
-        unreleasedFlag(2600, "enable_dark_vignette_when_folding")
-
     // TODO(b259590361): Tracking bug
     val EXPERIMENTAL_FLAG = unreleasedFlag(2, "exp_flag_release")
 }

packages/SystemUI/src/com/android/systemui/unfold/UnfoldLightRevealOverlayAnimation.kt

@@ -36,8 +36,6 @@ import android.view.SurfaceSession
 import android.view.WindowManager
 import android.view.WindowlessWindowManager
 import com.android.systemui.dagger.qualifiers.Main
-import com.android.systemui.flags.FeatureFlags
-import com.android.systemui.flags.Flags
 import com.android.systemui.statusbar.LightRevealEffect
 import com.android.systemui.statusbar.LightRevealScrim
 import com.android.systemui.statusbar.LinearLightRevealEffect
@@ -59,7 +57,6 @@ class UnfoldLightRevealOverlayAnimation
 @Inject
 constructor(
     private val context: Context,
-    private val featureFlags: FeatureFlags,
     private val deviceStateManager: DeviceStateManager,
     private val contentResolver: ContentResolver,
     private val displayManager: DisplayManager,
@@ -84,7 +81,6 @@ constructor(
     private var scrimView: LightRevealScrim? = null
     private var isFolded: Boolean = false
     private var isUnfoldHandled: Boolean = true
-    private var overlayAddReason: AddOverlayReason? = null
 
     private var currentRotation: Int = context.display!!.rotation
 
@@ -162,8 +158,6 @@ constructor(
         ensureInBackground()
         ensureOverlayRemoved()
 
-        overlayAddReason = reason
-
         val newRoot = SurfaceControlViewHost(context, context.display!!, wwm)
         val params = getLayoutParams()
         val newView =
@@ -176,7 +170,11 @@ constructor(
                 .apply {
                     revealEffect = createLightRevealEffect()
                     isScrimOpaqueChangedListener = Consumer {}
-                    revealAmount = calculateRevealAmount()
+                    revealAmount =
+                        when (reason) {
+                            FOLD -> TRANSPARENT
+                            UNFOLD -> BLACK
+                        }
                 }
 
         newRoot.setView(newView, params)
@@ -209,31 +207,6 @@ constructor(
         root = newRoot
     }
 
-    private fun calculateRevealAmount(animationProgress: Float? = null): Float {
-        val overlayAddReason = overlayAddReason ?: UNFOLD
-
-        if (animationProgress == null) {
-            // Animation progress is unknown, calculate the initial value based on the overlay
-            // add reason
-            return when (overlayAddReason) {
-                FOLD -> TRANSPARENT
-                UNFOLD -> BLACK
-            }
-        }
-
-        val showVignetteWhenFolding =
-            featureFlags.isEnabled(Flags.ENABLE_DARK_VIGNETTE_WHEN_FOLDING)
-
-        return if (!showVignetteWhenFolding && overlayAddReason == FOLD) {
-            // Do not darken the content when SHOW_VIGNETTE_WHEN_FOLDING flag is off
-            // and we are folding the device. We still add the overlay to block touches
-            // while the animation is running but the overlay is transparent.
-            TRANSPARENT
-        } else {
-            animationProgress
-        }
-    }
-
     private fun getLayoutParams(): WindowManager.LayoutParams {
         val params: WindowManager.LayoutParams = WindowManager.LayoutParams()
 
@@ -286,7 +259,7 @@ constructor(
     private inner class TransitionListener : TransitionProgressListener {
 
         override fun onTransitionProgress(progress: Float) {
-            executeInBackground { scrimView?.revealAmount = calculateRevealAmount(progress) }
+            executeInBackground { scrimView?.revealAmount = progress }
         }
 
         override fun onTransitionFinished() {