| /* |
| * 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 |
| |
| /** |
| * Get an [IndentingPrintWriter] which either is or wraps the given [PrintWriter]. |
| * |
| * The original [PrintWriter] should not be used until the returned [IndentingPrintWriter] is no |
| * longer being used, to avoid inconsistent writing. |
| */ |
| fun PrintWriter.asIndenting(): IndentingPrintWriter = |
| (this as? IndentingPrintWriter) ?: 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() |
| } |
| } |
| |
| /** |
| * Run some code inside a block, with [IndentingPrintWriter.increaseIndent] having been called on |
| * the given argument, and calling [IndentingPrintWriter.decreaseIndent] after completion. |
| */ |
| fun IndentingPrintWriter.withIncreasedIndent(runnable: Runnable) { |
| this.increaseIndent() |
| try { |
| runnable.run() |
| } finally { |
| this.decreaseIndent() |
| } |
| } |
| |
| /** Print a line which is '$label=$value' */ |
| fun IndentingPrintWriter.println(label: String, value: Any) = |
| append(label).append('=').println(value) |
| |
| /** 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" |
| } |