1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.shade 18 19 import android.content.res.Configuration 20 import com.android.app.tracing.coroutines.TrackTracer 21 22 /** 23 * Centralized logging for shade-related events to a dedicated Perfetto track. 24 * 25 * Used by shade components to log events to a track named [TRACK_NAME]. This consolidates 26 * shade-specific events into a single track for easier analysis in Perfetto, rather than scattering 27 * them across various threads' logs. 28 */ 29 object ShadeTraceLogger { 30 val t = TrackTracer(trackName = "ShadeTraceLogger", trackGroup = "shade") 31 32 @JvmStatic logOnMovedToDisplaynull33 fun logOnMovedToDisplay(displayId: Int, config: Configuration) { 34 t.instant { "onMovedToDisplay(displayId=$displayId, dpi=${config.densityDpi})" } 35 } 36 37 @JvmStatic logOnConfigChangednull38 fun logOnConfigChanged(config: Configuration) { 39 t.instant { 40 "NotificationShadeWindowView#onConfigurationChanged(dpi=${config.densityDpi}, " + 41 "smallestWidthDp=${config.smallestScreenWidthDp})" 42 } 43 } 44 45 @JvmStatic logMoveShadeWindowTonull46 fun logMoveShadeWindowTo(displayId: Int) { 47 t.instant { "moveShadeWindowTo(displayId=$displayId)" } 48 } 49 traceReparentingnull50 suspend fun traceReparenting(r: suspend () -> Unit) { 51 t.traceAsync({ "reparenting" }) { r() } 52 } 53 traceWaitForExpansionnull54 inline fun traceWaitForExpansion(expansion: Float, r: () -> Unit) { 55 t.traceAsync({ "waiting for shade expansion to match $expansion" }) { r() } 56 } 57 } 58