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/*
* Copyright (C) 2012 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.launcher3.logging;
import android.content.Intent;
import android.view.View;
import android.view.ViewParent;
import com.android.launcher3.ItemInfo;
import com.android.launcher3.userevent.nano.LauncherLogProto;
import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
import com.android.launcher3.userevent.nano.LauncherLogProto.LauncherEvent;
import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
import com.android.launcher3.util.ComponentKey;
import java.util.List;
public abstract class UserEventLogger {
private final static int MAXIMUM_VIEW_HIERARCHY_LEVEL = 5;
/**
* Implemented by containers to provide a launch source for a given child.
*/
public interface LaunchSourceProvider {
/**
* Copies data from the source to the destination proto.
* @param v source of the data
* @param info source of the data
* @param target dest of the data
* @param targetParent dest of the data
*/
void fillInLaunchSourceData(View v, ItemInfo info, Target target, Target targetParent);
}
/**
* Recursively finds the parent of the given child which implements IconLogInfoProvider
*/
public static LaunchSourceProvider getLaunchProviderRecursive(View v) {
ViewParent parent = null;
if (v != null) {
parent = v.getParent();
} else {
return null;
}
// Optimization to only check up to 5 parents.
int count = MAXIMUM_VIEW_HIERARCHY_LEVEL;
while (parent != null && count-- > 0) {
if (parent instanceof LaunchSourceProvider) {
return (LaunchSourceProvider) parent;
} else {
parent = parent.getParent();
}
}
return null;
}
private String TAG = "UserEventLogger";
private long mElapsedContainerMillis;
private long mElapsedSessionMillis;
private long mActionDurationMillis;
// Used for filling in predictedRank on {@link Target}s.
private List<ComponentKey> mPredictedApps;
// APP_ICON SHORTCUT WIDGET
// --------------------------------------------------------------
// packageNameHash required optional required
// componentNameHash required required
// intentHash required
// --------------------------------------------------------------
protected LauncherEvent createLogEvent(View v) {
LauncherEvent event = LoggerUtils.initLauncherEvent(
Action.TOUCH, Target.ITEM, Target.CONTAINER);
event.action.touch = Action.TAP;
// Fill in grid(x,y), pageIndex of the child and container type of the parent
// TODO: make this percolate up the view hierarchy if needed.
int idx = 0;
LaunchSourceProvider provider = getLaunchProviderRecursive(v);
provider.fillInLaunchSourceData(v, (ItemInfo) v.getTag(), event.srcTarget[idx], event.srcTarget[idx + 1]);
// TODO: Fill in all the hashes and the predictedRank
// Fill in the duration of time spent navigating in Launcher and the container.
event.elapsedContainerMillis = System.currentTimeMillis() - mElapsedContainerMillis;
event.elapsedSessionMillis = System.currentTimeMillis() - mElapsedSessionMillis;
return event;
}
public void logLaunch(View v, Intent intent) {
processEvent(createLogEvent(v));
}
public void logTap(View v) {
// TODO
}
public void logLongPress() {
// TODO
}
public void logDragNDrop() {
// TODO
}
public void setPredictedApps(List<ComponentKey> predictedApps) {
mPredictedApps = predictedApps;
}
/**
* Currently logs following containers: workspace, allapps, widget tray.
*/
public final void resetElapsedContainerMillis() {
mElapsedContainerMillis = System.currentTimeMillis();
}
public final void resetElapsedSessionMillis() {
mElapsedSessionMillis = System.currentTimeMillis();
mElapsedContainerMillis = System.currentTimeMillis();
}
public final void resetActionDurationMillis() {
mActionDurationMillis = System.currentTimeMillis();
}
public abstract void processEvent(LauncherLogProto.LauncherEvent ev);
public int getPredictedRank(ComponentKey key) {
if (mPredictedApps == null) return -1;
return mPredictedApps.indexOf(key);
}
}
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