sdk/sources/android-25/com/android/systemui/statusbar/phone/NotificationGroupManager.java - android_tools - Git at Google

 /*
  * Copyright (C) 2015 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.phone;

 import android.service.notification.StatusBarNotification;
 import android.support.annotation.Nullable;

 import com.android.systemui.statusbar.ExpandableNotificationRow;
 import com.android.systemui.statusbar.NotificationData;
 import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.policy.HeadsUpManager;

 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Map;

 /**
  * A class to handle notifications and their corresponding groups.
  */
 public class NotificationGroupManager implements HeadsUpManager.OnHeadsUpChangedListener {

     private final HashMap<String, NotificationGroup> mGroupMap = new HashMap<>();
     private OnGroupChangeListener mListener;
     private int mBarState = -1;
     private HashMap<String, StatusBarNotification> mIsolatedEntries = new HashMap<>();
     private HeadsUpManager mHeadsUpManager;
     private boolean mIsUpdatingUnchangedGroup;

     public void setOnGroupChangeListener(OnGroupChangeListener listener) {
         mListener = listener;
     }

     public boolean isGroupExpanded(StatusBarNotification sbn) {
         NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
         if (group == null) {
             return false;
         }
         return group.expanded;
     }

     public void setGroupExpanded(StatusBarNotification sbn, boolean expanded) {
         NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
         if (group == null) {
             return;
         }
         setGroupExpanded(group, expanded);
     }

     private void setGroupExpanded(NotificationGroup group, boolean expanded) {
         group.expanded = expanded;
         if (group.summary != null) {
             mListener.onGroupExpansionChanged(group.summary.row, expanded);
         }
     }

     public void onEntryRemoved(NotificationData.Entry removed) {
         onEntryRemovedInternal(removed, removed.notification);
         mIsolatedEntries.remove(removed.key);
     }

     /**
      * An entry was removed.
      *
      * @param removed the removed entry
      * @param sbn the notification the entry has, which doesn't need to be the same as it's internal
      *            notification
      */
     private void onEntryRemovedInternal(NotificationData.Entry removed,
             final StatusBarNotification sbn) {
         String groupKey = getGroupKey(sbn);
         final NotificationGroup group = mGroupMap.get(groupKey);
         if (group == null) {
             // When an app posts 2 different notifications as summary of the same group, then a
             // cancellation of the first notification removes this group.
             // This situation is not supported and we will not allow such notifications anymore in
             // the close future. See b/23676310 for reference.
             return;
         }
         if (isGroupChild(sbn)) {
             group.children.remove(removed);
         } else {
             group.summary = null;
         }
         updateSuppression(group);
         if (group.children.isEmpty()) {
             if (group.summary == null) {
                 mGroupMap.remove(groupKey);
             }
         }
     }

     public void onEntryAdded(final NotificationData.Entry added) {
         final StatusBarNotification sbn = added.notification;
         boolean isGroupChild = isGroupChild(sbn);
         String groupKey = getGroupKey(sbn);
         NotificationGroup group = mGroupMap.get(groupKey);
         if (group == null) {
             group = new NotificationGroup();
             mGroupMap.put(groupKey, group);
         }
         if (isGroupChild) {
             group.children.add(added);
             updateSuppression(group);
         } else {
             group.summary = added;
             group.expanded = added.row.areChildrenExpanded();
             updateSuppression(group);
             if (!group.children.isEmpty()) {
                 HashSet<NotificationData.Entry> childrenCopy =
                         (HashSet<NotificationData.Entry>) group.children.clone();
                 for (NotificationData.Entry child : childrenCopy) {
                     onEntryBecomingChild(child);
                 }
                 mListener.onGroupCreatedFromChildren(group);
             }
         }
     }

     private void onEntryBecomingChild(NotificationData.Entry entry) {
         if (entry.row.isHeadsUp()) {
             onHeadsUpStateChanged(entry, true);
         }
     }

     private void updateSuppression(NotificationGroup group) {
         if (group == null) {
             return;
         }
         boolean prevSuppressed = group.suppressed;
         group.suppressed = group.summary != null && !group.expanded
                 && (group.children.size() == 1
                 || (group.children.size() == 0
                         && group.summary.notification.getNotification().isGroupSummary()
                         && hasIsolatedChildren(group)));
         if (prevSuppressed != group.suppressed) {
             if (group.suppressed) {
                 handleSuppressedSummaryHeadsUpped(group.summary);
             }
             if (!mIsUpdatingUnchangedGroup) {
                 mListener.onGroupsChanged();
             }
         }
     }

     private boolean hasIsolatedChildren(NotificationGroup group) {
         return getNumberOfIsolatedChildren(group.summary.notification.getGroupKey()) != 0;
     }

     private int getNumberOfIsolatedChildren(String groupKey) {
         int count = 0;
         for (StatusBarNotification sbn : mIsolatedEntries.values()) {
             if (sbn.getGroupKey().equals(groupKey) && isIsolated(sbn)) {
                 count++;
             }
         }
         return count;
     }

     private NotificationData.Entry getIsolatedChild(String groupKey) {
         for (StatusBarNotification sbn : mIsolatedEntries.values()) {
             if (sbn.getGroupKey().equals(groupKey) && isIsolated(sbn)) {
                 return mGroupMap.get(sbn.getKey()).summary;
             }
         }
         return null;
     }

     public void onEntryUpdated(NotificationData.Entry entry,
             StatusBarNotification oldNotification) {
         String oldKey = oldNotification.getGroupKey();
         String newKey = entry.notification.getGroupKey();
         boolean groupKeysChanged = !oldKey.equals(newKey);
         boolean wasGroupChild = isGroupChild(oldNotification);
         boolean isGroupChild = isGroupChild(entry.notification);
         mIsUpdatingUnchangedGroup = !groupKeysChanged && wasGroupChild == isGroupChild;
         if (mGroupMap.get(getGroupKey(oldNotification)) != null) {
             onEntryRemovedInternal(entry, oldNotification);
         }
         onEntryAdded(entry);
         mIsUpdatingUnchangedGroup = false;
         if (isIsolated(entry.notification)) {
             mIsolatedEntries.put(entry.key, entry.notification);
             if (groupKeysChanged) {
                 updateSuppression(mGroupMap.get(oldKey));
                 updateSuppression(mGroupMap.get(newKey));
             }
         } else if (!wasGroupChild && isGroupChild) {
             onEntryBecomingChild(entry);
         }
     }

     public boolean isSummaryOfSuppressedGroup(StatusBarNotification sbn) {
         return isGroupSuppressed(getGroupKey(sbn)) && sbn.getNotification().isGroupSummary();
     }

     private boolean isOnlyChild(StatusBarNotification sbn) {
         return !sbn.getNotification().isGroupSummary()
                 && getTotalNumberOfChildren(sbn) == 1;
     }

     public boolean isOnlyChildInGroup(StatusBarNotification sbn) {
         if (!isOnlyChild(sbn)) {
             return false;
         }
         ExpandableNotificationRow logicalGroupSummary = getLogicalGroupSummary(sbn);
         return logicalGroupSummary != null
                 && !logicalGroupSummary.getStatusBarNotification().equals(sbn);
     }

     private int getTotalNumberOfChildren(StatusBarNotification sbn) {
         int isolatedChildren = getNumberOfIsolatedChildren(sbn.getGroupKey());
         NotificationGroup group = mGroupMap.get(sbn.getGroupKey());
         int realChildren = group != null ? group.children.size() : 0;
         return isolatedChildren + realChildren;
     }

     private boolean isGroupSuppressed(String groupKey) {
         NotificationGroup group = mGroupMap.get(groupKey);
         return group != null && group.suppressed;
     }

     public void setStatusBarState(int newState) {
         if (mBarState == newState) {
             return;
         }
         mBarState = newState;
         if (mBarState == StatusBarState.KEYGUARD) {
             collapseAllGroups();
         }
     }

     public void collapseAllGroups() {
         // Because notifications can become isolated when the group becomes suppressed it can
         // lead to concurrent modifications while looping. We need to make a copy.
         ArrayList<NotificationGroup> groupCopy = new ArrayList<>(mGroupMap.values());
         int size = groupCopy.size();
         for (int i = 0; i < size; i++) {
             NotificationGroup group =  groupCopy.get(i);
             if (group.expanded) {
                 setGroupExpanded(group, false);
             }
             updateSuppression(group);
         }
     }

     /**
      * @return whether a given notification is a child in a group which has a summary
      */
     public boolean isChildInGroupWithSummary(StatusBarNotification sbn) {
         if (!isGroupChild(sbn)) {
             return false;
         }
         NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
         if (group == null || group.summary == null || group.suppressed) {
             return false;
         }
         if (group.children.isEmpty()) {
             // If the suppression of a group changes because the last child was removed, this can
             // still be called temporarily because the child hasn't been fully removed yet. Let's
             // make sure we still return false in that case.
             return false;
         }
         return true;
     }

     /**
      * @return whether a given notification is a summary in a group which has children
      */
     public boolean isSummaryOfGroup(StatusBarNotification sbn) {
         if (!isGroupSummary(sbn)) {
             return false;
         }
         NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
         if (group == null) {
             return false;
         }
         return !group.children.isEmpty();
     }

     /**
      * Get the summary of a specified status bar notification. For isolated notification this return
      * itself.
      */
     public ExpandableNotificationRow getGroupSummary(StatusBarNotification sbn) {
         return getGroupSummary(getGroupKey(sbn));
     }

     /**
      * Similar to {@link #getGroupSummary(StatusBarNotification)} but doesn't get the visual summary
      * but the logical summary, i.e when a child is isolated, it still returns the summary as if
      * it wasn't isolated.
      */
     public ExpandableNotificationRow getLogicalGroupSummary(
             StatusBarNotification sbn) {
         return getGroupSummary(sbn.getGroupKey());
     }

     @Nullable
     private ExpandableNotificationRow getGroupSummary(String groupKey) {
         NotificationGroup group = mGroupMap.get(groupKey);
         return group == null ? null
                 : group.summary == null ? null
                         : group.summary.row;
     }

     /** @return group expansion state after toggling. */
     public boolean toggleGroupExpansion(StatusBarNotification sbn) {
         NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
         if (group == null) {
             return false;
         }
         setGroupExpanded(group, !group.expanded);
         return group.expanded;
     }

     private boolean isIsolated(StatusBarNotification sbn) {
         return mIsolatedEntries.containsKey(sbn.getKey());
     }

     private boolean isGroupSummary(StatusBarNotification sbn) {
         if (isIsolated(sbn)) {
             return true;
         }
         return sbn.getNotification().isGroupSummary();
     }

     private boolean isGroupChild(StatusBarNotification sbn) {
         if (isIsolated(sbn)) {
             return false;
         }
         return sbn.isGroup() && !sbn.getNotification().isGroupSummary();
     }

     private String getGroupKey(StatusBarNotification sbn) {
         if (isIsolated(sbn)) {
             return sbn.getKey();
         }
         return sbn.getGroupKey();
     }

     @Override
     public void onHeadsUpPinnedModeChanged(boolean inPinnedMode) {
     }

     @Override
     public void onHeadsUpPinned(ExpandableNotificationRow headsUp) {
     }

     @Override
     public void onHeadsUpUnPinned(ExpandableNotificationRow headsUp) {
     }

     @Override
     public void onHeadsUpStateChanged(NotificationData.Entry entry, boolean isHeadsUp) {
         final StatusBarNotification sbn = entry.notification;
         if (entry.row.isHeadsUp()) {
             if (shouldIsolate(sbn)) {
                 // We will be isolated now, so lets update the groups
                 onEntryRemovedInternal(entry, entry.notification);

                 mIsolatedEntries.put(sbn.getKey(), sbn);

                 onEntryAdded(entry);
                 // We also need to update the suppression of the old group, because this call comes
                 // even before the groupManager knows about the notification at all.
                 // When the notification gets added afterwards it is already isolated and therefore
                 // it doesn't lead to an update.
                 updateSuppression(mGroupMap.get(entry.notification.getGroupKey()));
                 mListener.onGroupsChanged();
             } else {
                 handleSuppressedSummaryHeadsUpped(entry);
             }
         } else {
             if (mIsolatedEntries.containsKey(sbn.getKey())) {
                 // not isolated anymore, we need to update the groups
                 onEntryRemovedInternal(entry, entry.notification);
                 mIsolatedEntries.remove(sbn.getKey());
                 onEntryAdded(entry);
                 mListener.onGroupsChanged();
             }
         }
     }

     private void handleSuppressedSummaryHeadsUpped(NotificationData.Entry entry) {
         StatusBarNotification sbn = entry.notification;
         if (!isGroupSuppressed(sbn.getGroupKey())
                 || !sbn.getNotification().isGroupSummary()
                 || !entry.row.isHeadsUp()) {
             return;
         }
         // The parent of a suppressed group got huned, lets hun the child!
         NotificationGroup notificationGroup = mGroupMap.get(sbn.getGroupKey());
         if (notificationGroup != null) {
             Iterator<NotificationData.Entry> iterator = notificationGroup.children.iterator();
             NotificationData.Entry child = iterator.hasNext() ? iterator.next() : null;
             if (child == null) {
                 child = getIsolatedChild(sbn.getGroupKey());
             }
             if (child != null) {
                 if (mHeadsUpManager.isHeadsUp(child.key)) {
                     mHeadsUpManager.updateNotification(child, true);
                 } else {
                     mHeadsUpManager.showNotification(child);
                 }
             }
         }
         mHeadsUpManager.releaseImmediately(entry.key);
     }

     private boolean shouldIsolate(StatusBarNotification sbn) {
         NotificationGroup notificationGroup = mGroupMap.get(sbn.getGroupKey());
         return (sbn.isGroup() && !sbn.getNotification().isGroupSummary())
                 && (sbn.getNotification().fullScreenIntent != null
                         || notificationGroup == null
                         || !notificationGroup.expanded
                         || isGroupNotFullyVisible(notificationGroup));
     }

     private boolean isGroupNotFullyVisible(NotificationGroup notificationGroup) {
         return notificationGroup.summary == null
                 || notificationGroup.summary.row.getClipTopAmount() > 0
                 || notificationGroup.summary.row.getTranslationY() < 0;
     }

     public void setHeadsUpManager(HeadsUpManager headsUpManager) {
         mHeadsUpManager = headsUpManager;
     }

     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         pw.println("GroupManager state:");
         pw.println("  number of groups: " +  mGroupMap.size());
         for (Map.Entry<String, NotificationGroup>  entry : mGroupMap.entrySet()) {
             pw.println("\n    key: " + entry.getKey()); pw.println(entry.getValue());
         }
         pw.println("\n    isolated entries: " +  mIsolatedEntries.size());
         for (Map.Entry<String, StatusBarNotification> entry : mIsolatedEntries.entrySet()) {
             pw.print("      "); pw.print(entry.getKey());
             pw.print(", "); pw.println(entry.getValue());
         }
     }

     public static class NotificationGroup {
         public final HashSet<NotificationData.Entry> children = new HashSet<>();
         public NotificationData.Entry summary;
         public boolean expanded;
         /**
          * Is this notification group suppressed, i.e its summary is hidden
          */
         public boolean suppressed;

         @Override
         public String toString() {
             String result = "    summary:\n      "
                     + (summary != null ? summary.notification : "null");
             result += "\n    children size: " + children.size();
             for (NotificationData.Entry child : children) {
                 result += "\n      " + child.notification;
             }
             return result;
         }
     }

     public interface OnGroupChangeListener {
         /**
          * The expansion of a group has changed.
          *
          * @param changedRow the row for which the expansion has changed, which is also the summary
          * @param expanded a boolean indicating the new expanded state
          */
         void onGroupExpansionChanged(ExpandableNotificationRow changedRow, boolean expanded);

         /**
          * A group of children just received a summary notification and should therefore become
          * children of it.
          *
          * @param group the group created
          */
         void onGroupCreatedFromChildren(NotificationGroup group);

         /**
          * The groups have changed. This can happen if the isolation of a child has changes or if a
          * group became suppressed / unsuppressed
          */
         void onGroupsChanged();
     }
 }
	/*
	* Copyright (C) 2015 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.phone;

	import android.service.notification.StatusBarNotification;
	import android.support.annotation.Nullable;

	import com.android.systemui.statusbar.ExpandableNotificationRow;
	import com.android.systemui.statusbar.NotificationData;
	import com.android.systemui.statusbar.StatusBarState;
	import com.android.systemui.statusbar.policy.HeadsUpManager;

	import java.io.FileDescriptor;
	import java.io.PrintWriter;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.HashSet;
	import java.util.Iterator;
	import java.util.Map;

	/**
	* A class to handle notifications and their corresponding groups.
	*/
	public class NotificationGroupManager implements HeadsUpManager.OnHeadsUpChangedListener {

	private final HashMap<String, NotificationGroup> mGroupMap = new HashMap<>();
	private OnGroupChangeListener mListener;
	private int mBarState = -1;
	private HashMap<String, StatusBarNotification> mIsolatedEntries = new HashMap<>();
	private HeadsUpManager mHeadsUpManager;
	private boolean mIsUpdatingUnchangedGroup;

	public void setOnGroupChangeListener(OnGroupChangeListener listener) {
	mListener = listener;
	}

	public boolean isGroupExpanded(StatusBarNotification sbn) {
	NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
	if (group == null) {
	return false;
	}
	return group.expanded;
	}

	public void setGroupExpanded(StatusBarNotification sbn, boolean expanded) {
	NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
	if (group == null) {
	return;
	}
	setGroupExpanded(group, expanded);
	}

	private void setGroupExpanded(NotificationGroup group, boolean expanded) {
	group.expanded = expanded;
	if (group.summary != null) {
	mListener.onGroupExpansionChanged(group.summary.row, expanded);
	}
	}

	public void onEntryRemoved(NotificationData.Entry removed) {
	onEntryRemovedInternal(removed, removed.notification);
	mIsolatedEntries.remove(removed.key);
	}

	/**
	* An entry was removed.
	*
	* @param removed the removed entry
	* @param sbn the notification the entry has, which doesn't need to be the same as it's internal
	* notification
	*/
	private void onEntryRemovedInternal(NotificationData.Entry removed,
	final StatusBarNotification sbn) {
	String groupKey = getGroupKey(sbn);
	final NotificationGroup group = mGroupMap.get(groupKey);
	if (group == null) {
	// When an app posts 2 different notifications as summary of the same group, then a
	// cancellation of the first notification removes this group.
	// This situation is not supported and we will not allow such notifications anymore in
	// the close future. See b/23676310 for reference.
	return;
	}
	if (isGroupChild(sbn)) {
	group.children.remove(removed);
	} else {
	group.summary = null;
	}
	updateSuppression(group);
	if (group.children.isEmpty()) {
	if (group.summary == null) {
	mGroupMap.remove(groupKey);
	}
	}
	}

	public void onEntryAdded(final NotificationData.Entry added) {
	final StatusBarNotification sbn = added.notification;
	boolean isGroupChild = isGroupChild(sbn);
	String groupKey = getGroupKey(sbn);
	NotificationGroup group = mGroupMap.get(groupKey);
	if (group == null) {
	group = new NotificationGroup();
	mGroupMap.put(groupKey, group);
	}
	if (isGroupChild) {
	group.children.add(added);
	updateSuppression(group);
	} else {
	group.summary = added;
	group.expanded = added.row.areChildrenExpanded();
	updateSuppression(group);
	if (!group.children.isEmpty()) {
	HashSet<NotificationData.Entry> childrenCopy =
	(HashSet<NotificationData.Entry>) group.children.clone();
	for (NotificationData.Entry child : childrenCopy) {
	onEntryBecomingChild(child);
	}
	mListener.onGroupCreatedFromChildren(group);
	}
	}
	}

	private void onEntryBecomingChild(NotificationData.Entry entry) {
	if (entry.row.isHeadsUp()) {
	onHeadsUpStateChanged(entry, true);
	}
	}

	private void updateSuppression(NotificationGroup group) {
	if (group == null) {
	return;
	}
	boolean prevSuppressed = group.suppressed;
	group.suppressed = group.summary != null && !group.expanded
	&& (group.children.size() == 1
	\|\| (group.children.size() == 0
	&& group.summary.notification.getNotification().isGroupSummary()
	&& hasIsolatedChildren(group)));
	if (prevSuppressed != group.suppressed) {
	if (group.suppressed) {
	handleSuppressedSummaryHeadsUpped(group.summary);
	}
	if (!mIsUpdatingUnchangedGroup) {
	mListener.onGroupsChanged();
	}
	}
	}

	private boolean hasIsolatedChildren(NotificationGroup group) {
	return getNumberOfIsolatedChildren(group.summary.notification.getGroupKey()) != 0;
	}

	private int getNumberOfIsolatedChildren(String groupKey) {
	int count = 0;
	for (StatusBarNotification sbn : mIsolatedEntries.values()) {
	if (sbn.getGroupKey().equals(groupKey) && isIsolated(sbn)) {
	count++;
	}
	}
	return count;
	}

	private NotificationData.Entry getIsolatedChild(String groupKey) {
	for (StatusBarNotification sbn : mIsolatedEntries.values()) {
	if (sbn.getGroupKey().equals(groupKey) && isIsolated(sbn)) {
	return mGroupMap.get(sbn.getKey()).summary;
	}
	}
	return null;
	}

	public void onEntryUpdated(NotificationData.Entry entry,
	StatusBarNotification oldNotification) {
	String oldKey = oldNotification.getGroupKey();
	String newKey = entry.notification.getGroupKey();
	boolean groupKeysChanged = !oldKey.equals(newKey);
	boolean wasGroupChild = isGroupChild(oldNotification);
	boolean isGroupChild = isGroupChild(entry.notification);
	mIsUpdatingUnchangedGroup = !groupKeysChanged && wasGroupChild == isGroupChild;
	if (mGroupMap.get(getGroupKey(oldNotification)) != null) {
	onEntryRemovedInternal(entry, oldNotification);
	}
	onEntryAdded(entry);
	mIsUpdatingUnchangedGroup = false;
	if (isIsolated(entry.notification)) {
	mIsolatedEntries.put(entry.key, entry.notification);
	if (groupKeysChanged) {
	updateSuppression(mGroupMap.get(oldKey));
	updateSuppression(mGroupMap.get(newKey));
	}
	} else if (!wasGroupChild && isGroupChild) {
	onEntryBecomingChild(entry);
	}
	}

	public boolean isSummaryOfSuppressedGroup(StatusBarNotification sbn) {
	return isGroupSuppressed(getGroupKey(sbn)) && sbn.getNotification().isGroupSummary();
	}

	private boolean isOnlyChild(StatusBarNotification sbn) {
	return !sbn.getNotification().isGroupSummary()
	&& getTotalNumberOfChildren(sbn) == 1;
	}

	public boolean isOnlyChildInGroup(StatusBarNotification sbn) {
	if (!isOnlyChild(sbn)) {
	return false;
	}
	ExpandableNotificationRow logicalGroupSummary = getLogicalGroupSummary(sbn);
	return logicalGroupSummary != null
	&& !logicalGroupSummary.getStatusBarNotification().equals(sbn);
	}

	private int getTotalNumberOfChildren(StatusBarNotification sbn) {
	int isolatedChildren = getNumberOfIsolatedChildren(sbn.getGroupKey());
	NotificationGroup group = mGroupMap.get(sbn.getGroupKey());
	int realChildren = group != null ? group.children.size() : 0;
	return isolatedChildren + realChildren;
	}

	private boolean isGroupSuppressed(String groupKey) {
	NotificationGroup group = mGroupMap.get(groupKey);
	return group != null && group.suppressed;
	}

	public void setStatusBarState(int newState) {
	if (mBarState == newState) {
	return;
	}
	mBarState = newState;
	if (mBarState == StatusBarState.KEYGUARD) {
	collapseAllGroups();
	}
	}

	public void collapseAllGroups() {
	// Because notifications can become isolated when the group becomes suppressed it can
	// lead to concurrent modifications while looping. We need to make a copy.
	ArrayList<NotificationGroup> groupCopy = new ArrayList<>(mGroupMap.values());
	int size = groupCopy.size();
	for (int i = 0; i < size; i++) {
	NotificationGroup group = groupCopy.get(i);
	if (group.expanded) {
	setGroupExpanded(group, false);
	}
	updateSuppression(group);
	}
	}

	/**
	* @return whether a given notification is a child in a group which has a summary
	*/
	public boolean isChildInGroupWithSummary(StatusBarNotification sbn) {
	if (!isGroupChild(sbn)) {
	return false;
	}
	NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
	if (group == null \|\| group.summary == null \|\| group.suppressed) {
	return false;
	}
	if (group.children.isEmpty()) {
	// If the suppression of a group changes because the last child was removed, this can
	// still be called temporarily because the child hasn't been fully removed yet. Let's
	// make sure we still return false in that case.
	return false;
	}
	return true;
	}

	/**
	* @return whether a given notification is a summary in a group which has children
	*/
	public boolean isSummaryOfGroup(StatusBarNotification sbn) {
	if (!isGroupSummary(sbn)) {
	return false;
	}
	NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
	if (group == null) {
	return false;
	}
	return !group.children.isEmpty();
	}

	/**
	* Get the summary of a specified status bar notification. For isolated notification this return
	* itself.
	*/
	public ExpandableNotificationRow getGroupSummary(StatusBarNotification sbn) {
	return getGroupSummary(getGroupKey(sbn));
	}

	/**
	* Similar to {@link #getGroupSummary(StatusBarNotification)} but doesn't get the visual summary
	* but the logical summary, i.e when a child is isolated, it still returns the summary as if
	* it wasn't isolated.
	*/
	public ExpandableNotificationRow getLogicalGroupSummary(
	StatusBarNotification sbn) {
	return getGroupSummary(sbn.getGroupKey());
	}

	@Nullable
	private ExpandableNotificationRow getGroupSummary(String groupKey) {
	NotificationGroup group = mGroupMap.get(groupKey);
	return group == null ? null
	: group.summary == null ? null
	: group.summary.row;
	}

	/** @return group expansion state after toggling. */
	public boolean toggleGroupExpansion(StatusBarNotification sbn) {
	NotificationGroup group = mGroupMap.get(getGroupKey(sbn));
	if (group == null) {
	return false;
	}
	setGroupExpanded(group, !group.expanded);
	return group.expanded;
	}

	private boolean isIsolated(StatusBarNotification sbn) {
	return mIsolatedEntries.containsKey(sbn.getKey());
	}

	private boolean isGroupSummary(StatusBarNotification sbn) {
	if (isIsolated(sbn)) {
	return true;
	}
	return sbn.getNotification().isGroupSummary();
	}

	private boolean isGroupChild(StatusBarNotification sbn) {
	if (isIsolated(sbn)) {
	return false;
	}
	return sbn.isGroup() && !sbn.getNotification().isGroupSummary();
	}

	private String getGroupKey(StatusBarNotification sbn) {
	if (isIsolated(sbn)) {
	return sbn.getKey();
	}
	return sbn.getGroupKey();
	}

	@Override
	public void onHeadsUpPinnedModeChanged(boolean inPinnedMode) {
	}

	@Override
	public void onHeadsUpPinned(ExpandableNotificationRow headsUp) {
	}

	@Override
	public void onHeadsUpUnPinned(ExpandableNotificationRow headsUp) {
	}

	@Override
	public void onHeadsUpStateChanged(NotificationData.Entry entry, boolean isHeadsUp) {
	final StatusBarNotification sbn = entry.notification;
	if (entry.row.isHeadsUp()) {
	if (shouldIsolate(sbn)) {
	// We will be isolated now, so lets update the groups
	onEntryRemovedInternal(entry, entry.notification);

	mIsolatedEntries.put(sbn.getKey(), sbn);

	onEntryAdded(entry);
	// We also need to update the suppression of the old group, because this call comes
	// even before the groupManager knows about the notification at all.
	// When the notification gets added afterwards it is already isolated and therefore
	// it doesn't lead to an update.
	updateSuppression(mGroupMap.get(entry.notification.getGroupKey()));
	mListener.onGroupsChanged();
	} else {
	handleSuppressedSummaryHeadsUpped(entry);
	}
	} else {
	if (mIsolatedEntries.containsKey(sbn.getKey())) {
	// not isolated anymore, we need to update the groups
	onEntryRemovedInternal(entry, entry.notification);
	mIsolatedEntries.remove(sbn.getKey());
	onEntryAdded(entry);
	mListener.onGroupsChanged();
	}
	}
	}

	private void handleSuppressedSummaryHeadsUpped(NotificationData.Entry entry) {
	StatusBarNotification sbn = entry.notification;
	if (!isGroupSuppressed(sbn.getGroupKey())
	\|\| !sbn.getNotification().isGroupSummary()
	\|\| !entry.row.isHeadsUp()) {
	return;
	}
	// The parent of a suppressed group got huned, lets hun the child!
	NotificationGroup notificationGroup = mGroupMap.get(sbn.getGroupKey());
	if (notificationGroup != null) {
	Iterator<NotificationData.Entry> iterator = notificationGroup.children.iterator();
	NotificationData.Entry child = iterator.hasNext() ? iterator.next() : null;
	if (child == null) {
	child = getIsolatedChild(sbn.getGroupKey());
	}
	if (child != null) {
	if (mHeadsUpManager.isHeadsUp(child.key)) {
	mHeadsUpManager.updateNotification(child, true);
	} else {
	mHeadsUpManager.showNotification(child);
	}
	}
	}
	mHeadsUpManager.releaseImmediately(entry.key);
	}

	private boolean shouldIsolate(StatusBarNotification sbn) {
	NotificationGroup notificationGroup = mGroupMap.get(sbn.getGroupKey());
	return (sbn.isGroup() && !sbn.getNotification().isGroupSummary())
	&& (sbn.getNotification().fullScreenIntent != null
	\|\| notificationGroup == null
	\|\| !notificationGroup.expanded
	\|\| isGroupNotFullyVisible(notificationGroup));
	}

	private boolean isGroupNotFullyVisible(NotificationGroup notificationGroup) {
	return notificationGroup.summary == null
	\|\| notificationGroup.summary.row.getClipTopAmount() > 0
	\|\| notificationGroup.summary.row.getTranslationY() < 0;
	}

	public void setHeadsUpManager(HeadsUpManager headsUpManager) {
	mHeadsUpManager = headsUpManager;
	}

	public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
	pw.println("GroupManager state:");
	pw.println(" number of groups: " + mGroupMap.size());
	for (Map.Entry<String, NotificationGroup> entry : mGroupMap.entrySet()) {
	pw.println("\n key: " + entry.getKey()); pw.println(entry.getValue());
	}
	pw.println("\n isolated entries: " + mIsolatedEntries.size());
	for (Map.Entry<String, StatusBarNotification> entry : mIsolatedEntries.entrySet()) {
	pw.print(" "); pw.print(entry.getKey());
	pw.print(", "); pw.println(entry.getValue());
	}
	}

	public static class NotificationGroup {
	public final HashSet<NotificationData.Entry> children = new HashSet<>();
	public NotificationData.Entry summary;
	public boolean expanded;
	/**
	* Is this notification group suppressed, i.e its summary is hidden
	*/
	public boolean suppressed;

	@Override
	public String toString() {
	String result = " summary:\n "
	+ (summary != null ? summary.notification : "null");
	result += "\n children size: " + children.size();
	for (NotificationData.Entry child : children) {
	result += "\n " + child.notification;
	}
	return result;
	}
	}

	public interface OnGroupChangeListener {
	/**
	* The expansion of a group has changed.
	*
	* @param changedRow the row for which the expansion has changed, which is also the summary
	* @param expanded a boolean indicating the new expanded state
	*/
	void onGroupExpansionChanged(ExpandableNotificationRow changedRow, boolean expanded);

	/**
	* A group of children just received a summary notification and should therefore become
	* children of it.
	*
	* @param group the group created
	*/
	void onGroupCreatedFromChildren(NotificationGroup group);

	/**
	* The groups have changed. This can happen if the isolation of a child has changes or if a
	* group became suppressed / unsuppressed
	*/
	void onGroupsChanged();
	}
	}