/* * Copyright (C) 2021 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.util import android.util.IndentingPrintWriter import android.view.View import java.io.PrintWriter import java.util.function.Consumer /** * Run some code that will print to an [IndentingPrintWriter] that wraps the given [PrintWriter]. * * If the given [PrintWriter] is an [IndentingPrintWriter], the block will be passed that same * instance with [IndentingPrintWriter.increaseIndent] having been called, and calling * [IndentingPrintWriter.decreaseIndent] after completion of the block, so the passed [PrintWriter] * should not be used before the block completes. */ inline fun PrintWriter.withIndenting(block: (IndentingPrintWriter) -> Unit) { if (this is IndentingPrintWriter) { this.withIncreasedIndent { block(this) } } else { block(IndentingPrintWriter(this)) } } /** * Run some code that will print to an [IndentingPrintWriter] that wraps the given [PrintWriter]. * * If the given [PrintWriter] is an [IndentingPrintWriter], the block will be passed that same * instance with [IndentingPrintWriter.increaseIndent] having been called, and calling * [IndentingPrintWriter.decreaseIndent] after completion of the block, so the passed [PrintWriter] * should not be used before the block completes. */ fun PrintWriter.withIndenting(consumer: Consumer) { if (this is IndentingPrintWriter) { this.withIncreasedIndent { consumer.accept(this) } } else { consumer.accept(IndentingPrintWriter(this)) } } /** * Run some code inside a block, with [IndentingPrintWriter.increaseIndent] having been called on * the given argument, and calling [IndentingPrintWriter.decreaseIndent] after completion. */ inline fun IndentingPrintWriter.withIncreasedIndent(block: () -> Unit) { this.increaseIndent() try { block() } finally { this.decreaseIndent() } } /** Return a readable string for the visibility */ fun visibilityString(@View.Visibility visibility: Int): String = when (visibility) { View.GONE -> "gone" View.VISIBLE -> "visible" View.INVISIBLE -> "invisible" else -> "unknown:$visibility" }