package com.android.launcher3.logging;
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import android.view.View;
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import android.view.ViewParent;
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import com.android.launcher3.ItemInfo;
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import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
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import androidx.annotation.Nullable;
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public class StatsLogUtils {
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// Defined in android.stats.launcher.nano
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// As they cannot be linked in this file, defining again.
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public final static int LAUNCHER_STATE_BACKGROUND = 0;
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public final static int LAUNCHER_STATE_HOME = 1;
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public final static int LAUNCHER_STATE_OVERVIEW = 2;
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public final static int LAUNCHER_STATE_ALLAPPS = 3;
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private final static int MAXIMUM_VIEW_HIERARCHY_LEVEL = 5;
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public interface LogStateProvider {
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int getCurrentState();
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}
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/**
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* Implemented by containers to provide a container source for a given child.
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*
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* Currently,
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*/
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public interface LogContainerProvider {
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/**
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* Copies data from the source to the destination proto.
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*
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* @param v source of the data
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* @param info source of the data
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* @param target dest of the data
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* @param targetParent dest of the data
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*/
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void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent);
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}
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/**
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* Recursively finds the parent of the given child which implements IconLogInfoProvider
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*/
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public static LogContainerProvider getLaunchProviderRecursive(@Nullable View v) {
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ViewParent parent;
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if (v != null) {
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parent = v.getParent();
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} else {
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return null;
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}
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// Optimization to only check up to 5 parents.
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int count = MAXIMUM_VIEW_HIERARCHY_LEVEL;
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while (parent != null && count-- > 0) {
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if (parent instanceof LogContainerProvider) {
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return (LogContainerProvider) parent;
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} else {
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parent = parent.getParent();
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}
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}
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return null;
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}
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}
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