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/*
* 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<IndentingPrintWriter>) {
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"
}
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