Evan Laird | 9a9a619 | 2019-12-19 10:44:21 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.systemui.statusbar.notification.collection |
| 18 | |
| 19 | import android.annotation.MainThread |
| 20 | import android.view.ViewGroup |
| 21 | |
| 22 | import com.android.systemui.statusbar.FeatureFlags |
| 23 | import com.android.systemui.statusbar.notification.VisualStabilityManager |
| 24 | import com.android.systemui.statusbar.notification.collection.GroupEntry.ROOT_ENTRY |
| 25 | import com.android.systemui.statusbar.notification.stack.NotificationListItem |
| 26 | import com.android.systemui.util.Assert |
| 27 | |
| 28 | import java.io.FileDescriptor |
| 29 | import java.io.PrintWriter |
| 30 | import java.lang.IllegalStateException |
| 31 | import javax.inject.Inject |
| 32 | import javax.inject.Singleton |
| 33 | |
| 34 | /** |
| 35 | * A consumer of a Notification tree built by [ShadeListBuilder] which will update the notification |
| 36 | * presenter with the minimum operations required to make the old tree match the new one |
| 37 | */ |
| 38 | @MainThread |
| 39 | @Singleton |
| 40 | class NotifViewManager @Inject constructor( |
| 41 | private val rowRegistry: NotifViewBarn, |
| 42 | private val stabilityManager: VisualStabilityManager, |
| 43 | private val featureFlags: FeatureFlags |
| 44 | ) { |
| 45 | var currentNotifs = listOf<ListEntry>() |
| 46 | |
| 47 | private lateinit var listContainer: SimpleNotificationListContainer |
| 48 | |
| 49 | fun attach(listBuilder: ShadeListBuilder) { |
| 50 | if (featureFlags.isNewNotifPipelineRenderingEnabled) { |
| 51 | listBuilder.setOnRenderListListener { entries: List<ListEntry> -> |
| 52 | this.onNotifTreeBuilt(entries) |
| 53 | } |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | fun setViewConsumer(consumer: SimpleNotificationListContainer) { |
| 58 | listContainer = consumer |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Callback for when the tree is rebuilt |
| 63 | */ |
| 64 | fun onNotifTreeBuilt(notifList: List<ListEntry>) { |
| 65 | Assert.isMainThread() |
| 66 | |
| 67 | /* |
| 68 | * The assumption here is that anything from the old NotificationViewHierarchyManager that |
| 69 | * is responsible for filtering is done via the NotifFilter logic. This tree we get should |
| 70 | * be *the stuff to display* +/- redacted stuff |
| 71 | */ |
| 72 | |
| 73 | detachRows(notifList) |
| 74 | attachRows(notifList) |
| 75 | |
| 76 | currentNotifs = notifList |
| 77 | } |
| 78 | |
| 79 | private fun detachRows(entries: List<ListEntry>) { |
| 80 | // To properly detach rows, we are looking to remove any view in the consumer that is not |
| 81 | // present in the incoming list. |
| 82 | // |
| 83 | // Every listItem was top-level, so it's entry's parent was ROOT_ENTRY, but now |
| 84 | // there are two possibilities: |
| 85 | // |
| 86 | // 1. It is not present in the entry list |
| 87 | // 1a. It has moved to be a child in the entry list - transfer it |
| 88 | // 1b. It is gone completely - remove it |
| 89 | // 2. It is present in the entry list - diff the children |
| 90 | getListItems(listContainer) |
| 91 | .filter { |
| 92 | // Ignore things that are showing the blocking helper |
| 93 | !it.isBlockingHelperShowing |
| 94 | } |
| 95 | .forEach { listItem -> |
| 96 | val noLongerTopLevel = listItem.entry.parent != ROOT_ENTRY |
| 97 | val becameChild = noLongerTopLevel && listItem.entry.parent != null |
| 98 | |
| 99 | val idx = entries.indexOf(listItem.entry) |
| 100 | |
| 101 | if (noLongerTopLevel) { |
| 102 | // Summaries won't become children; remove the whole group |
| 103 | if (listItem.isSummaryWithChildren) { |
| 104 | listItem.removeAllChildren() |
| 105 | } |
| 106 | |
| 107 | if (becameChild) { |
| 108 | // Top-level element is becoming a child, don't generate an animation |
| 109 | listContainer.setChildTransferInProgress(true) |
| 110 | } |
| 111 | listContainer.removeListItem(listItem) |
| 112 | listContainer.setChildTransferInProgress(false) |
| 113 | } else if (entries[idx] is GroupEntry) { |
| 114 | // A top-level entry exists. If it's a group, diff the children |
| 115 | val groupChildren = (entries[idx] as GroupEntry).children |
| 116 | listItem.notificationChildren?.forEach { listChild -> |
| 117 | if (!groupChildren.contains(listChild.entry)) { |
| 118 | listItem.removeChildNotification(listChild) |
| 119 | |
| 120 | // TODO: the old code only calls this if the notif is gone from |
| 121 | // NEM.getActiveNotificationUnfiltered(). Do we care? |
| 122 | listContainer.notifyGroupChildRemoved( |
| 123 | listChild.view, listChild.view.parent as ViewGroup) |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | /** Convenience method for getting a sequence of [NotificationListItem]s */ |
| 131 | private fun getListItems(container: SimpleNotificationListContainer): |
| 132 | Sequence<NotificationListItem> { |
| 133 | return (0 until container.getContainerChildCount()).asSequence() |
| 134 | .map { container.getContainerChildAt(it) } |
| 135 | .filterIsInstance<NotificationListItem>() |
| 136 | } |
| 137 | |
| 138 | private fun attachRows(entries: List<ListEntry>) { |
| 139 | |
| 140 | var orderChanged = false |
| 141 | |
| 142 | // To attach rows we can use _this one weird trick_: if the intended view to add does not |
| 143 | // have a parent, then simply add it (and its children). |
| 144 | entries.forEach { entry -> |
Kevin Han | 4943b86 | 2020-03-23 17:14:39 -0700 | [diff] [blame] | 145 | // TODO: We should eventually map GroupEntry's themselves to views so that we don't |
| 146 | // depend on representativeEntry here which may actually be null in the future |
| 147 | val listItem = rowRegistry.requireView(entry.representativeEntry!!) |
Evan Laird | 9a9a619 | 2019-12-19 10:44:21 -0500 | [diff] [blame] | 148 | |
Kevin Han | 4943b86 | 2020-03-23 17:14:39 -0700 | [diff] [blame] | 149 | if (listItem.view.parent == null) { |
Evan Laird | 9a9a619 | 2019-12-19 10:44:21 -0500 | [diff] [blame] | 150 | listContainer.addListItem(listItem) |
| 151 | stabilityManager.notifyViewAddition(listItem.view) |
| 152 | } |
| 153 | |
| 154 | if (entry is GroupEntry) { |
| 155 | for ((idx, childEntry) in entry.children.withIndex()) { |
| 156 | val childListItem = rowRegistry.requireView(childEntry) |
| 157 | // Child hasn't been added yet. add it! |
Kevin Han | 4943b86 | 2020-03-23 17:14:39 -0700 | [diff] [blame] | 158 | if (listItem.notificationChildren == null || |
| 159 | !listItem.notificationChildren.contains(childListItem)) { |
Evan Laird | 9a9a619 | 2019-12-19 10:44:21 -0500 | [diff] [blame] | 160 | // TODO: old code here just Log.wtf()'d here. This might wreak havoc |
| 161 | if (childListItem.view.parent != null) { |
| 162 | throw IllegalStateException("trying to add a notification child that " + |
| 163 | "already has a parent. class: " + |
| 164 | "${childListItem.view.parent?.javaClass} " + |
| 165 | "\n child: ${childListItem.view}" |
| 166 | ) |
| 167 | } |
| 168 | |
| 169 | listItem.addChildNotification(childListItem, idx) |
| 170 | stabilityManager.notifyViewAddition(childListItem.view) |
| 171 | listContainer.notifyGroupChildAdded(childListItem.view) |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | // finally after removing and adding has been performed we can apply the order |
| 176 | orderChanged = orderChanged || |
| 177 | listItem.applyChildOrder( |
| 178 | getChildListFromParent(entry), |
| 179 | stabilityManager, |
| 180 | null /*TODO: stability callback */ |
| 181 | ) |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | if (orderChanged) { |
| 186 | listContainer.generateChildOrderChangedEvent() |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | private fun getChildListFromParent(parent: ListEntry): List<NotificationListItem> { |
| 191 | if (parent is GroupEntry) { |
| 192 | return parent.children.map { child -> rowRegistry.requireView(child) } |
| 193 | .toList() |
| 194 | } |
| 195 | |
| 196 | return emptyList() |
| 197 | } |
| 198 | |
| 199 | fun dump(fd: FileDescriptor, pw: PrintWriter, args: Array<String>) { |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | private const val TAG = "NotifViewDataSource" |