From c0e6ccb8f06eb23ca3ece6b2d8ed4cf3716a3ff0 Mon Sep 17 00:00:00 2001
From: Ned Burns <pixel@google.com>
Date: Fri, 14 Aug 2020 15:58:11 -0400
Subject: Don't require root controllers to have associated views

ARC has never has an associated view, and with a recent refactor, the
phone ListContainer is also somewhat disconnected from its associated
view.

Test: atest
Change-Id: I89723bb6412d33dae3f5279d1211417070ed66b6
---
 .../notification/collection/render/RootNodeController.kt  |  4 ++--
 .../notification/collection/render/ShadeViewManager.kt    | 15 +++++++++++++--
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/RootNodeController.kt b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/RootNodeController.kt
index e8124944bcb0..a1800ed12125 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/RootNodeController.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/RootNodeController.kt
@@ -25,10 +25,10 @@ import com.android.systemui.statusbar.notification.stack.NotificationListContain
  * we should just modify NLC to implement the NodeController interface.
  */
 class RootNodeController(
-    private val listContainer: NotificationListContainer
+    private val listContainer: NotificationListContainer,
+    override val view: View
 ) : NodeController {
     override val nodeLabel: String = "<root>"
-    override val view: View = listContainer as View
 
     override fun getChildAt(index: Int): View? {
         return listContainer.getContainerChildAt(index)
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/ShadeViewManager.kt b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/ShadeViewManager.kt
index 118ff4a9fbb7..3c35b7bd8472 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/ShadeViewManager.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/ShadeViewManager.kt
@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar.notification.collection.render
 
+import android.content.Context
+import android.view.View
 import com.android.systemui.statusbar.notification.collection.GroupEntry
 import com.android.systemui.statusbar.notification.collection.ListEntry
 import com.android.systemui.statusbar.notification.collection.NotificationEntry
@@ -30,12 +32,15 @@ import javax.inject.Inject
  * currently populate the notification shade.
  */
 class ShadeViewManager constructor(
+    context: Context,
     listContainer: NotificationListContainer,
     logger: ShadeViewDifferLogger,
     private val viewBarn: NotifViewBarn,
     private val notificationIconAreaController: NotificationIconAreaController
 ) {
-    private val rootController = RootNodeController(listContainer)
+    // We pass a shim view here because the listContainer may not actually have a view associated
+    // with it and the differ never actually cares about the root node's view.
+    private val rootController = RootNodeController(listContainer, View(context))
     private val viewDiffer = ShadeViewDiffer(rootController, logger)
 
     fun attach(listBuilder: ShadeListBuilder) {
@@ -82,11 +87,17 @@ class ShadeViewManager constructor(
 }
 
 class ShadeViewManagerFactory @Inject constructor(
+    private val context: Context,
     private val logger: ShadeViewDifferLogger,
     private val viewBarn: NotifViewBarn,
     private val notificationIconAreaController: NotificationIconAreaController
 ) {
     fun create(listContainer: NotificationListContainer): ShadeViewManager {
-        return ShadeViewManager(listContainer, logger, viewBarn, notificationIconAreaController)
+        return ShadeViewManager(
+                context,
+                listContainer,
+                logger,
+                viewBarn,
+                notificationIconAreaController)
     }
 }
-- 
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