1 /*
<lambda>null2  * Copyright (C) 2023 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.intentresolver.widget
18 
19 import android.graphics.Rect
20 import android.util.Log
21 import android.view.View
22 import androidx.core.view.OneShotPreDrawListener
23 import java.util.concurrent.atomic.AtomicBoolean
24 import kotlinx.coroutines.suspendCancellableCoroutine
25 
26 internal suspend fun View.waitForPreDraw(): Unit = suspendCancellableCoroutine { continuation ->
27     val isResumed = AtomicBoolean(false)
28     val callback =
29         OneShotPreDrawListener.add(
30             this,
31             Runnable {
32                 if (isResumed.compareAndSet(false, true)) {
33                     continuation.resumeWith(Result.success(Unit))
34                 } else {
35                     // it's not really expected but in some unknown corner-case let's not crash
36                     Log.e(
37                         "waitForPreDraw",
38                         "An attempt to resume a completed coroutine",
39                         Exception()
40                     )
41                 }
42             }
43         )
44     continuation.invokeOnCancellation { callback.removeListener() }
45 }
46 
isFullyVisiblenull47 internal fun View.isFullyVisible(): Boolean {
48     val rect = Rect()
49     val isVisible = getLocalVisibleRect(rect)
50     return isVisible && rect.width() == width && rect.height() == height
51 }
52