blob: 57b3f53c48fecda0c0ea13b6581c6fe679268c09 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
* Copyright (C) 2020 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.ViewGroup
import java.io.PrintWriter
/** [Sequence] that yields all of the direct children of this [ViewGroup] */
val ViewGroup.children
get() = sequence {
for (i in 0 until childCount) yield(getChildAt(i))
}
/** Inclusive version of [Iterable.takeWhile] */
fun <T> Sequence<T>.takeUntil(pred: (T) -> Boolean): Sequence<T> = sequence {
for (x in this@takeUntil) {
yield(x)
if (pred(x)) {
break
}
}
}
/**
* If `this` is an [IndentingPrintWriter], it will process block inside an indentation level.
*
* If not, this will just process block.
*/
inline fun PrintWriter.indentIfPossible(block: PrintWriter.() -> Unit) {
if (this is IndentingPrintWriter) increaseIndent()
block()
if (this is IndentingPrintWriter) decreaseIndent()
}
|
