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/*
* 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.inflation
import com.android.systemui.dagger.SysUISingleton
import com.android.systemui.statusbar.NotificationLockscreenUserManager
import com.android.systemui.statusbar.notification.SectionClassifier
import com.android.systemui.statusbar.notification.collection.GroupEntry
import com.android.systemui.statusbar.notification.collection.NotificationEntry
import com.android.systemui.util.ListenerSet
import javax.inject.Inject
/**
* A class which provides an adjustment object to the preparation coordinator which is uses
* to ensure that notifications are reinflated when ranking-derived information changes.
*/
@SysUISingleton
class NotifUiAdjustmentProvider @Inject constructor(
private val lockscreenUserManager: NotificationLockscreenUserManager,
private val sectionClassifier: SectionClassifier,
) {
private val dirtyListeners = ListenerSet<Runnable>()
fun addDirtyListener(listener: Runnable) {
if (dirtyListeners.isEmpty()) {
lockscreenUserManager.addNotificationStateChangedListener(notifStateChangedListener)
}
dirtyListeners.addIfAbsent(listener)
}
fun removeDirtyListener(listener: Runnable) {
dirtyListeners.remove(listener)
if (dirtyListeners.isEmpty()) {
lockscreenUserManager.removeNotificationStateChangedListener(notifStateChangedListener)
}
}
private val notifStateChangedListener =
NotificationLockscreenUserManager.NotificationStateChangedListener {
dirtyListeners.forEach(Runnable::run)
}
private fun isEntryMinimized(entry: NotificationEntry): Boolean {
val section = entry.section ?: error("Entry must have a section to determine if minimized")
val parent = entry.parent ?: error("Entry must have a parent to determine if minimized")
val isMinimizedSection = sectionClassifier.isMinimizedSection(section)
val isTopLevelEntry = parent == GroupEntry.ROOT_ENTRY
val isGroupSummary = parent.summary == entry
return isMinimizedSection && (isTopLevelEntry || isGroupSummary)
}
/**
* Returns a adjustment object for the given entry. This can be compared to a previous instance
* from the same notification using [NotifUiAdjustment.needReinflate] to determine if it should
* be reinflated.
*/
fun calculateAdjustment(entry: NotificationEntry) = NotifUiAdjustment(
key = entry.key,
smartActions = entry.ranking.smartActions,
smartReplies = entry.ranking.smartReplies,
isConversation = entry.ranking.isConversation,
isMinimized = isEntryMinimized(entry),
needsRedaction = lockscreenUserManager.needsRedaction(entry),
)
}
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