/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.policy;
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import android.annotation.IntDef;
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import android.metrics.LogMaker;
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import android.os.SystemClock;
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import com.android.internal.logging.MetricsLogger;
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import com.android.internal.logging.nano.MetricsProto;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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/**
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* Logger for tracking duration of usage in folded vs unfolded state.
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*/
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class DisplayFoldDurationLogger {
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static final int SCREEN_STATE_UNKNOWN = -1;
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static final int SCREEN_STATE_OFF = 0;
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static final int SCREEN_STATE_ON_UNFOLDED = 1;
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static final int SCREEN_STATE_ON_FOLDED = 2;
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@IntDef(flag = true, prefix = {"SCREEN_STATE_"}, value = {
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SCREEN_STATE_UNKNOWN,
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SCREEN_STATE_OFF,
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SCREEN_STATE_ON_UNFOLDED,
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SCREEN_STATE_ON_FOLDED
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})
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@Retention(RetentionPolicy.SOURCE)
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public @interface ScreenState {}
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private @ScreenState int mScreenState = SCREEN_STATE_UNKNOWN;
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private Long mLastChanged = null;
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private static final int LOG_SUBTYPE_UNFOLDED = 0;
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private static final int LOG_SUBTYPE_FOLDED = 1;
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private static final int LOG_SUBTYPE_DURATION_MASK = 0x80000000;
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private final MetricsLogger mLogger = new MetricsLogger();
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void onFinishedWakingUp(Boolean folded) {
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if (folded == null) {
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mScreenState = SCREEN_STATE_UNKNOWN;
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} else if (folded) {
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mScreenState = SCREEN_STATE_ON_FOLDED;
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} else {
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mScreenState = SCREEN_STATE_ON_UNFOLDED;
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}
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mLastChanged = SystemClock.uptimeMillis();
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}
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void onFinishedGoingToSleep() {
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log();
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mScreenState = SCREEN_STATE_OFF;
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mLastChanged = null;
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}
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void setDeviceFolded(boolean folded) {
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// This function is called even when the screen is in ADO mode, but we're only
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// interested in the case that the screen is actually on.
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if (!isOn()) {
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return;
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}
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log();
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mScreenState = folded ? SCREEN_STATE_ON_FOLDED : SCREEN_STATE_ON_UNFOLDED;
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mLastChanged = SystemClock.uptimeMillis();
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}
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void logFocusedAppWithFoldState(boolean folded, String packageName) {
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mLogger.write(
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new LogMaker(MetricsProto.MetricsEvent.ACTION_DISPLAY_FOLD)
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.setType(MetricsProto.MetricsEvent.TYPE_ACTION)
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.setSubtype(folded ? LOG_SUBTYPE_FOLDED : LOG_SUBTYPE_UNFOLDED)
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.setPackageName(packageName));
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}
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private void log() {
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if (mLastChanged == null) {
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return;
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}
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int subtype;
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switch (mScreenState) {
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case SCREEN_STATE_ON_UNFOLDED:
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subtype = LOG_SUBTYPE_UNFOLDED | LOG_SUBTYPE_DURATION_MASK;
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break;
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case SCREEN_STATE_ON_FOLDED:
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subtype = LOG_SUBTYPE_FOLDED | LOG_SUBTYPE_DURATION_MASK;
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break;
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default:
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return;
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}
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mLogger.write(
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new LogMaker(MetricsProto.MetricsEvent.ACTION_DISPLAY_FOLD)
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.setType(MetricsProto.MetricsEvent.TYPE_ACTION)
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.setSubtype(subtype)
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.setLatency(SystemClock.uptimeMillis() - mLastChanged));
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}
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private boolean isOn() {
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return mScreenState == SCREEN_STATE_ON_UNFOLDED || mScreenState == SCREEN_STATE_ON_FOLDED;
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}
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}
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