Merge "Spin off node generation logic into testable class" into sc-v2-dev am:... (30276a8f) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/NodeController.kt

+1 −1

Original line number	Diff line number	Diff line
		@@ -78,7 +78,7 @@ fun treeSpecToStr(tree: NodeSpec): String {
		}

		private fun treeSpecToStrHelper(tree: NodeSpec, sb: StringBuilder, indent: String) {
		sb.append("${indent}ns{${tree.controller.nodeLabel}")
		sb.append("${indent}{${tree.controller.nodeLabel}}\n")
		if (tree.children.isNotEmpty()) {
		val childIndent = "$indent "
		for (child in tree.children) {

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/NodeSpecBuilder.kt

0 → 100644

+73 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2021 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.systemui.statusbar.notification.collection.render

		import com.android.systemui.statusbar.notification.collection.GroupEntry
		import com.android.systemui.statusbar.notification.collection.ListEntry
		import com.android.systemui.statusbar.notification.collection.NotificationEntry
		import com.android.systemui.statusbar.notification.collection.listbuilder.NotifSection

		/**
		* Converts a notif list (the output of the ShadeListBuilder) into a NodeSpec, an abstract
		* representation of which views should be present in the shade. This spec will later be consumed
		* by the ViewDiffer, which will add and remove views until the shade matches the spec. Up until
		* this point, the pipeline has dealt with pure data representations of notifications (in the
		* form of NotificationEntries). In this step, NotificationEntries finally become associated with
		* the views that will represent them. In addition, we add in any non-notification views that also
		* need to present in the shade, notably the section headers.
		*/
		class NodeSpecBuilder(
		private val viewBarn: NotifViewBarn
		) {
		fun buildNodeSpec(
		rootController: NodeController,
		notifList: List<ListEntry>
		): NodeSpec {
		val root = NodeSpecImpl(null, rootController)
		var currentSection: NotifSection? = null
		val prevSections = mutableSetOf<NotifSection?>()

		for (entry in notifList) {
		val section = entry.section!!

		if (prevSections.contains(section)) {
		throw java.lang.RuntimeException("Section ${section.label} has been duplicated")
		}

		// If this notif begins a new section, first add the section's header view
		if (section != currentSection) {
		section.headerController?.let { headerController ->
		root.children.add(NodeSpecImpl(root, headerController))
		}
		prevSections.add(currentSection)
		currentSection = section
		}

		// Finally, add the actual notif node!
		root.children.add(buildNotifNode(root, entry))
		}

		return root
		}

		private fun buildNotifNode(parent: NodeSpec, entry: ListEntry): NodeSpec = when (entry) {
		is NotificationEntry -> NodeSpecImpl(parent, viewBarn.requireView(entry))
		is GroupEntry -> NodeSpecImpl(parent, viewBarn.requireView(checkNotNull(entry.summary)))
		.apply { entry.children.forEach { children.add(buildNotifNode(this, it)) } }
		else -> throw RuntimeException("Unexpected entry: $entry")
		}
		}

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/NotifViewBarn.kt

+4 −6

Original line number	Diff line number	Diff line
		@@ -19,18 +19,16 @@ package com.android.systemui.statusbar.notification.collection.render
		import android.view.textclassifier.Log
		import com.android.systemui.dagger.SysUISingleton
		import com.android.systemui.statusbar.notification.collection.ListEntry
		import com.android.systemui.statusbar.notification.row.ExpandableNotificationRowController
		import javax.inject.Inject

		/**
		* The ViewBarn is just a map from [ListEntry] to an instance of an
		* [ExpandableNotificationRowController].
		* The ViewBarn is just a map from [ListEntry] to an instance of a [NodeController].
		*/
		@SysUISingleton
		class NotifViewBarn @Inject constructor() {
		private val rowMap = mutableMapOf<String, ExpandableNotificationRowController>()
		private val rowMap = mutableMapOf<String, NodeController>()

		fun requireView(forEntry: ListEntry): ExpandableNotificationRowController {
		fun requireView(forEntry: ListEntry): NodeController {
		if (DEBUG) {
		Log.d(TAG, "requireView: $forEntry.key")
		}
		@@ -42,7 +40,7 @@ class NotifViewBarn @Inject constructor() {
		return li
		}

		fun registerViewForEntry(entry: ListEntry, controller: ExpandableNotificationRowController) {
		fun registerViewForEntry(entry: ListEntry, controller: NodeController) {
		if (DEBUG) {
		Log.d(TAG, "registerViewForEntry: $entry.key")
		}

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/render/ShadeViewManager.kt

+4 −30

Original line number	Diff line number	Diff line
		@@ -18,9 +18,7 @@ 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
		import com.android.systemui.statusbar.notification.collection.ShadeListBuilder
		import com.android.systemui.statusbar.notification.stack.NotificationListContainer
		import com.android.systemui.statusbar.phone.NotificationIconAreaController
		@@ -34,45 +32,21 @@ class ShadeViewManager constructor(
		context: Context,
		listContainer: NotificationListContainer,
		logger: ShadeViewDifferLogger,
		private val viewBarn: NotifViewBarn,
		viewBarn: NotifViewBarn,
		private val notificationIconAreaController: NotificationIconAreaController
		) {
		// 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 specBuilder = NodeSpecBuilder(viewBarn)
		private val viewDiffer = ShadeViewDiffer(rootController, logger)

		fun attach(listBuilder: ShadeListBuilder) =
		listBuilder.setOnRenderListListener(::onNewNotifTree)

		private fun onNewNotifTree(tree: List<ListEntry>) = viewDiffer.applySpec(buildTree(tree))

		private fun buildTree(notifList: List<ListEntry>): NodeSpec {
		val root = NodeSpecImpl(null, rootController).apply {
		// Insert first section header, if present
		notifList.firstOrNull()?.section?.headerController?.let {
		children.add(NodeSpecImpl(this, it))
		}
		notifList.firstOrNull()?.let {
		children.add(buildNotifNode(it, this))
		}
		notifList.asSequence().zipWithNext().forEach { (prev, entry) ->
		// Insert new header if the section has changed between two entries
		entry.section.takeIf { it != prev.section }?.headerController?.let {
		children.add(NodeSpecImpl(this, it))
		}
		children.add(buildNotifNode(entry, this))
		}
		}
		private fun onNewNotifTree(notifList: List<ListEntry>) {
		viewDiffer.applySpec(specBuilder.buildNodeSpec(rootController, notifList))
		notificationIconAreaController.updateNotificationIcons(notifList)
		return root
		}

		private fun buildNotifNode(entry: ListEntry, parent: NodeSpec): NodeSpec = when (entry) {
		is NotificationEntry -> NodeSpecImpl(parent, viewBarn.requireView(entry))
		is GroupEntry -> NodeSpecImpl(parent, viewBarn.requireView(checkNotNull(entry.summary)))
		.apply { entry.children.forEach { children.add(buildNotifNode(it, this)) } }
		else -> throw RuntimeException("Unexpected entry: $entry")
		}
		}

packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/EntryUtil.kt

+4 −0

Original line number	Diff line number	Diff line
		@@ -30,3 +30,7 @@ inline fun modifyEntry(
		modifier(builder)
		builder.apply(entry)
		}

		fun getAttachState(entry: ListEntry): ListAttachState {
		return entry.attachState
		}