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| 1 | +package com.airbnb.epoxy |
| 2 | +// ^^^ reference com/ |
| 3 | +// ^^^^^^ reference com/airbnb/ |
| 4 | +// ^^^^^ reference com/airbnb/epoxy/ |
| 5 | + |
| 6 | +import android.app.Activity |
| 7 | +import android.content.Context |
| 8 | +import android.content.ContextWrapper |
| 9 | +import android.os.Build |
| 10 | +import androidx.core.view.ViewCompat |
| 11 | +// ^^^^^^^^ reference androidx/ |
| 12 | +import androidx.lifecycle.Lifecycle |
| 13 | +// ^^^^^^^^ reference androidx/ |
| 14 | +// ^^^^^^^^^ reference androidx/lifecycle/ |
| 15 | +// ^^^^^^^^^ reference androidx/lifecycle/Lifecycle# |
| 16 | +import androidx.lifecycle.LifecycleObserver |
| 17 | +// ^^^^^^^^ reference androidx/ |
| 18 | +// ^^^^^^^^^ reference androidx/lifecycle/ |
| 19 | +// ^^^^^^^^^^^^^^^^^ reference androidx/lifecycle/LifecycleObserver# |
| 20 | +import androidx.lifecycle.LifecycleOwner |
| 21 | +// ^^^^^^^^ reference androidx/ |
| 22 | +// ^^^^^^^^^ reference androidx/lifecycle/ |
| 23 | +// ^^^^^^^^^^^^^^ reference androidx/lifecycle/LifecycleOwner# |
| 24 | +import androidx.lifecycle.OnLifecycleEvent |
| 25 | +// ^^^^^^^^ reference androidx/ |
| 26 | +// ^^^^^^^^^ reference androidx/lifecycle/ |
| 27 | +// ^^^^^^^^^^^^^^^^ reference androidx/lifecycle/OnLifecycleEvent# |
| 28 | +import androidx.recyclerview.widget.RecyclerView |
| 29 | +// ^^^^^^^^ reference androidx/ |
| 30 | +import java.lang.ref.WeakReference |
| 31 | +// ^^^^ reference java/ |
| 32 | +// ^^^^ reference java/lang/ |
| 33 | +// ^^^ reference java/lang/ref/ |
| 34 | +// ^^^^^^^^^^^^^ reference java/lang/ref/WeakReference# |
| 35 | +import java.util.ArrayList |
| 36 | +// ^^^^ reference java/ |
| 37 | +// ^^^^ reference java/util/ |
| 38 | +// ^^^^^^^^^ reference java/util/ArrayList# |
| 39 | + |
| 40 | +internal class ActivityRecyclerPool { |
| 41 | +// ^^^^^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool# |
| 42 | +// ^^^^^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#`<init>`(). |
| 43 | + |
| 44 | + /** |
| 45 | + * Store one unique pool per activity. They are cleared out when activities are destroyed, so this |
| 46 | + * only needs to hold pools for active activities. |
| 47 | + */ |
| 48 | + private val pools = ArrayList<PoolReference>(5) |
| 49 | +// ^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#pools. |
| 50 | +// ^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#getPools(). |
| 51 | +// ^^^^^^^^^ reference java/util/ArrayList#`<init>`(). |
| 52 | +// ^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference# |
| 53 | + |
| 54 | + @JvmOverloads |
| 55 | +// ^^^^^^^^^^^^ reference kotlin/jvm/JvmOverloads#`<init>`(). |
| 56 | + fun getPool( |
| 57 | +// ^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#getPool(). |
| 58 | + context: Context, |
| 59 | +// ^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#getPool().(context) |
| 60 | + poolFactory: () -> RecyclerView.RecycledViewPool |
| 61 | +// ^^^^^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#getPool().(poolFactory) |
| 62 | + ): PoolReference { |
| 63 | +// ^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference# |
| 64 | + |
| 65 | + val iterator = pools.iterator() |
| 66 | +// ^^^^^^^^ definition local0 |
| 67 | +// ^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#pools. |
| 68 | +// ^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#getPools(). |
| 69 | +// ^^^^^^^^ reference java/util/ArrayList#iterator(). |
| 70 | + var poolToUse: PoolReference? = null |
| 71 | +// ^^^^^^^^^ definition local1 |
| 72 | +// ^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference# |
| 73 | + |
| 74 | + while (iterator.hasNext()) { |
| 75 | +// ^^^^^^^^ reference local0 |
| 76 | +// ^^^^^^^ reference kotlin/collections/MutableIterator#hasNext(). |
| 77 | + val poolReference = iterator.next() |
| 78 | +// ^^^^^^^^^^^^^ definition local2 |
| 79 | +// ^^^^^^^^ reference local0 |
| 80 | +// ^^^^ reference kotlin/collections/MutableIterator#next(). |
| 81 | + when { |
| 82 | + poolReference.context === context -> { |
| 83 | +// ^^^^^^^^^^^^^ reference local2 |
| 84 | +// ^^^^^^^ reference com/airbnb/epoxy/PoolReference#context. |
| 85 | +// ^^^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#getPool().(context) |
| 86 | + if (poolToUse != null) { |
| 87 | +// ^^^^^^^^^ reference local1 |
| 88 | +// ^^ reference com/airbnb/epoxy/PoolReference#equals(+-1). |
| 89 | + throw IllegalStateException("A pool was already found") |
| 90 | +// ^^^^^^^^^^^^^^^^^^^^^ reference kotlin/IllegalStateException#`<init>`(+1). |
| 91 | + } |
| 92 | + poolToUse = poolReference |
| 93 | +// ^^^^^^^^^ reference local1 |
| 94 | +// ^^^^^^^^^^^^^ reference local2 |
| 95 | + // finish iterating to remove any old contexts |
| 96 | + } |
| 97 | + poolReference.context.isActivityDestroyed() -> { |
| 98 | +// ^^^^^^^^^^^^^ reference local2 |
| 99 | +// ^^^^^^^ reference com/airbnb/epoxy/PoolReference#context. |
| 100 | + // A pool from a different activity that was destroyed. |
| 101 | + // Clear the pool references to allow the activity to be GC'd |
| 102 | + poolReference.viewPool.clear() |
| 103 | +// ^^^^^^^^^^^^^ reference local2 |
| 104 | +// ^^^^^^^^ reference com/airbnb/epoxy/PoolReference#viewPool. |
| 105 | +// ^^^^^^^^ reference com/airbnb/epoxy/PoolReference#getViewPool(). |
| 106 | + iterator.remove() |
| 107 | +// ^^^^^^^^ reference local0 |
| 108 | +// ^^^^^^ reference kotlin/collections/MutableIterator#remove(). |
| 109 | + } |
| 110 | + } |
| 111 | + } |
| 112 | + |
| 113 | + if (poolToUse == null) { |
| 114 | +// ^^^^^^^^^ reference local1 |
| 115 | +// ^^ reference com/airbnb/epoxy/PoolReference#equals(+-1). |
| 116 | + poolToUse = PoolReference(context, poolFactory(), this) |
| 117 | +// ^^^^^^^^^ reference local1 |
| 118 | +// ^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference#`<init>`(). |
| 119 | +// ^^^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#getPool().(context) |
| 120 | +// ^^^^^^^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#getPool().(poolFactory) |
| 121 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool# |
| 122 | + context.lifecycle()?.addObserver(poolToUse) |
| 123 | +// ^^^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#getPool().(context) |
| 124 | +// ^^^^^^^^^ reference local1 |
| 125 | + pools.add(poolToUse) |
| 126 | +// ^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#pools. |
| 127 | +// ^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#getPools(). |
| 128 | +// ^^^ reference java/util/ArrayList#add(+1). |
| 129 | +// ^^^^^^^^^ reference local1 |
| 130 | + } |
| 131 | + |
| 132 | + return poolToUse |
| 133 | +// ^^^^^^^^^ reference local1 |
| 134 | + } |
| 135 | + |
| 136 | + fun clearIfDestroyed(pool: PoolReference) { |
| 137 | +// ^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#clearIfDestroyed(). |
| 138 | +// ^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#clearIfDestroyed().(pool) |
| 139 | +// ^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference# |
| 140 | + if (pool.context.isActivityDestroyed()) { |
| 141 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#clearIfDestroyed().(pool) |
| 142 | +// ^^^^^^^ reference com/airbnb/epoxy/PoolReference#context. |
| 143 | + pool.viewPool.clear() |
| 144 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#clearIfDestroyed().(pool) |
| 145 | +// ^^^^^^^^ reference com/airbnb/epoxy/PoolReference#viewPool. |
| 146 | +// ^^^^^^^^ reference com/airbnb/epoxy/PoolReference#getViewPool(). |
| 147 | + pools.remove(pool) |
| 148 | +// ^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#pools. |
| 149 | +// ^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#getPools(). |
| 150 | +// ^^^^^^ reference java/util/ArrayList#remove(). |
| 151 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#clearIfDestroyed().(pool) |
| 152 | + } |
| 153 | + } |
| 154 | + |
| 155 | + private fun Context.lifecycle(): Lifecycle? { |
| 156 | +// ^^^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPool#lifecycle(). |
| 157 | +// ^^^^^^^^^ reference androidx/lifecycle/Lifecycle# |
| 158 | + if (this is LifecycleOwner) { |
| 159 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#lifecycle(). |
| 160 | +// ^^^^^^^^^^^^^^ reference androidx/lifecycle/LifecycleOwner# |
| 161 | + return lifecycle |
| 162 | + } |
| 163 | + |
| 164 | + if (this is ContextWrapper) { |
| 165 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#lifecycle(). |
| 166 | + return baseContext.lifecycle() |
| 167 | + } |
| 168 | + |
| 169 | + return null |
| 170 | + } |
| 171 | +} |
| 172 | + |
| 173 | +internal class PoolReference( |
| 174 | +// ^^^^^^^^^^^^^ definition com/airbnb/epoxy/PoolReference# |
| 175 | +// ^^^^^^^^^^^^^ definition com/airbnb/epoxy/PoolReference#`<init>`(). |
| 176 | + context: Context, |
| 177 | +// ^^^^^^^ definition com/airbnb/epoxy/PoolReference#`<init>`().(context) |
| 178 | + val viewPool: RecyclerView.RecycledViewPool, |
| 179 | +// ^^^^^^^^ definition com/airbnb/epoxy/PoolReference#viewPool. |
| 180 | +// ^^^^^^^^ definition com/airbnb/epoxy/PoolReference#getViewPool(). |
| 181 | +// ^^^^^^^^ definition com/airbnb/epoxy/PoolReference#`<init>`().(viewPool) |
| 182 | + private val parent: ActivityRecyclerPool |
| 183 | +// ^^^^^^ definition com/airbnb/epoxy/PoolReference#parent. |
| 184 | +// ^^^^^^ definition com/airbnb/epoxy/PoolReference#getParent(). |
| 185 | +// ^^^^^^ definition com/airbnb/epoxy/PoolReference#`<init>`().(parent) |
| 186 | +// ^^^^^^^^^^^^^^^^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool# |
| 187 | +) : LifecycleObserver { |
| 188 | +// ^^^^^^^^^^^^^^^^^ reference androidx/lifecycle/LifecycleObserver# |
| 189 | + private val contextReference: WeakReference<Context> = WeakReference(context) |
| 190 | +// ^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/PoolReference#contextReference. |
| 191 | +// ^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/PoolReference#getContextReference(). |
| 192 | +// ^^^^^^^^^^^^^ reference java/lang/ref/WeakReference# |
| 193 | +// ^^^^^^^^^^^^^ reference java/lang/ref/WeakReference#`<init>`(). |
| 194 | +// ^^^^^^^ reference com/airbnb/epoxy/PoolReference#`<init>`().(context) |
| 195 | + |
| 196 | + val context: Context? get() = contextReference.get() |
| 197 | +// ^^^^^^^ definition com/airbnb/epoxy/PoolReference#context. |
| 198 | +// ^^^ definition com/airbnb/epoxy/PoolReference#getContext(). |
| 199 | +// ^^^^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference#contextReference. |
| 200 | +// ^^^^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference#getContextReference(). |
| 201 | +// ^^^ reference java/lang/ref/WeakReference#get(). |
| 202 | + |
| 203 | + fun clearIfDestroyed() { |
| 204 | +// ^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/PoolReference#clearIfDestroyed(). |
| 205 | + parent.clearIfDestroyed(this) |
| 206 | +// ^^^^^^ reference com/airbnb/epoxy/PoolReference#parent. |
| 207 | +// ^^^^^^ reference com/airbnb/epoxy/PoolReference#getParent(). |
| 208 | +// ^^^^^^^^^^^^^^^^ reference com/airbnb/epoxy/ActivityRecyclerPool#clearIfDestroyed(). |
| 209 | +// ^^^^ reference com/airbnb/epoxy/PoolReference# |
| 210 | + } |
| 211 | + |
| 212 | + @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY) |
| 213 | +// ^^^^^^^^^^^^^^^^ reference androidx/lifecycle/OnLifecycleEvent#`<init>`(). |
| 214 | +// ^^^^^^^^^ reference androidx/lifecycle/Lifecycle# |
| 215 | +// ^^^^^ reference androidx/lifecycle/Lifecycle#Event# |
| 216 | +// ^^^^^^^^^^ reference androidx/lifecycle/Lifecycle#Event#ON_DESTROY# |
| 217 | + fun onContextDestroyed() { |
| 218 | +// ^^^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/PoolReference#onContextDestroyed(). |
| 219 | + clearIfDestroyed() |
| 220 | +// ^^^^^^^^^^^^^^^^ reference com/airbnb/epoxy/PoolReference#clearIfDestroyed(). |
| 221 | + } |
| 222 | +} |
| 223 | + |
| 224 | +internal fun Context?.isActivityDestroyed(): Boolean { |
| 225 | +// ^^^^^^^^^^^^^^^^^^^ definition com/airbnb/epoxy/ActivityRecyclerPoolKt#isActivityDestroyed(). |
| 226 | +// ^^^^^^^ reference kotlin/Boolean# |
| 227 | + if (this == null) { |
| 228 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPoolKt#isActivityDestroyed(). |
| 229 | + return true |
| 230 | + } |
| 231 | + |
| 232 | + if (this !is Activity) { |
| 233 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPoolKt#isActivityDestroyed(). |
| 234 | + return (this as? ContextWrapper)?.baseContext?.isActivityDestroyed() ?: false |
| 235 | +// ^^^^ reference com/airbnb/epoxy/ActivityRecyclerPoolKt#isActivityDestroyed(). |
| 236 | + } |
| 237 | + |
| 238 | + if (isFinishing) { |
| 239 | + return true |
| 240 | + } |
| 241 | + |
| 242 | + return if (Build.VERSION.SDK_INT >= 17) { |
| 243 | + isDestroyed |
| 244 | + } else { |
| 245 | + // Use this as a proxy for being destroyed on older devices |
| 246 | + !ViewCompat.isAttachedToWindow(window.decorView) |
| 247 | + } |
| 248 | +} |
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