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@file:Suppress("UNCHECKED_CAST")
package ca.allanwang.kau.utils
/**
* Created by Allan Wang on 2017-05-29.
*
* Courtesy of Jake Wharton
*
* https://github.com/JakeWharton/kotterknife/blob/master/src/main/kotlin/kotterknife/ButterKnife.kt
*/
import android.app.Activity
import android.app.Dialog
import android.app.DialogFragment
import android.app.Fragment
import android.support.v7.widget.RecyclerView.ViewHolder
import android.view.View
import java.util.*
import kotlin.properties.ReadOnlyProperty
import kotlin.reflect.KProperty
import android.support.v4.app.DialogFragment as SupportDialogFragment
import android.support.v4.app.Fragment as SupportFragment
private const val DEPRECATION_MESSAGE = "Kotterknife will be removed in favour of the kotlin_android_extensions plugin"
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindView(id: Int)
: ReadOnlyProperty<View, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindView(id: Int)
: ReadOnlyProperty<Activity, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindView(id: Int)
: ReadOnlyProperty<Dialog, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindView(id: Int)
: ReadOnlyProperty<DialogFragment, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindView(id: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindView(id: Int)
: ReadOnlyProperty<Fragment, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindView(id: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindView(id: Int)
: ReadOnlyProperty<ViewHolder, V> = required(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindOptionalView(id: Int)
: ReadOnlyProperty<View, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindOptionalView(id: Int)
: ReadOnlyProperty<Activity, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindOptionalView(id: Int)
: ReadOnlyProperty<Dialog, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindOptionalView(id: Int)
: ReadOnlyProperty<DialogFragment, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindOptionalView(id: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindOptionalView(id: Int)
: ReadOnlyProperty<Fragment, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindOptionalView(id: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindOptionalView(id: Int)
: ReadOnlyProperty<ViewHolder, V?> = optional(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindViews(vararg ids: Int)
: ReadOnlyProperty<View, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindViews(vararg ids: Int)
: ReadOnlyProperty<Activity, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindViews(vararg ids: Int)
: ReadOnlyProperty<Dialog, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindViews(vararg ids: Int)
: ReadOnlyProperty<DialogFragment, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindViews(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindViews(vararg ids: Int)
: ReadOnlyProperty<Fragment, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindViews(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindViews(vararg ids: Int)
: ReadOnlyProperty<ViewHolder, List<V>> = required(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<View, List<V>> = optional(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<Activity, List<V>> = optional(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<Dialog, List<V>> = optional(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<DialogFragment, List<V>> = optional(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = optional(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<Fragment, List<V>> = optional(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = optional(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindOptionalViews(vararg ids: Int)
: ReadOnlyProperty<ViewHolder, List<V>> = optional(ids, viewFinder)
private inline val View.viewFinder: View.(Int) -> View?
get() = { findViewById(it) }
private inline val Activity.viewFinder: Activity.(Int) -> View?
get() = { findViewById(it) }
private inline val Dialog.viewFinder: Dialog.(Int) -> View?
get() = { findViewById(it) }
private inline val DialogFragment.viewFinder: DialogFragment.(Int) -> View?
get() = { dialog.findViewById(it) }
private inline val SupportDialogFragment.viewFinder: SupportDialogFragment.(Int) -> View?
get() = { dialog.findViewById(it) }
private inline val Fragment.viewFinder: Fragment.(Int) -> View?
get() = { view.findViewById(it) }
private inline val SupportFragment.viewFinder: SupportFragment.(Int) -> View?
get() = { view!!.findViewById(it) }
private inline val ViewHolder.viewFinder: ViewHolder.(Int) -> View?
get() = { itemView.findViewById(it) }
private fun viewNotFound(id: Int, desc: KProperty<*>): Nothing =
throw IllegalStateException("View ID $id for '${desc.name}' not found.")
private fun <T, V : View> required(id: Int, finder: T.(Int) -> View?) = Lazy { t: T, desc ->
(t.finder(id) as V?)?.apply { } ?: viewNotFound(id, desc)
}
private fun <T, V : View> optional(id: Int, finder: T.(Int) -> View?) = Lazy { t: T, _ -> t.finder(id) as V? }
private fun <T, V : View> required(ids: IntArray, finder: T.(Int) -> View?) = Lazy { t: T, desc ->
ids.map {
t.finder(it) as V? ?: viewNotFound(it, desc)
}
}
private fun <T, V : View> optional(ids: IntArray, finder: T.(Int) -> View?) = Lazy { t: T, _ -> ids.map { t.finder(it) as V? }.filterNotNull() }
// Like Kotlin's lazy delegate but the initializer gets the target and metadata passed to it
private open class Lazy<in T, out V>(private val initializer: (T, KProperty<*>) -> V) : ReadOnlyProperty<T, V> {
protected object EMPTY
protected var value: Any? = EMPTY
override fun getValue(thisRef: T, property: KProperty<*>): V {
if (value == EMPTY)
value = initializer(thisRef, property)
return value as V
}
}
/*
* The components below are a variant of the view bindings with lazy resettables
* All bindings are weakly held so that they may be reset through KotterknifeRegistry.reset
*
* This is typically only needed in cases such as Fragments,
* where their lifecycle doesn't match that of an Activity or View
*
* Credits to <a href="https://github.com/MichaelRocks">MichaelRocks</a>
*/
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindViewResettable(id: Int)
: ReadOnlyProperty<View, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindViewResettable(id: Int)
: ReadOnlyProperty<Activity, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindViewResettable(id: Int)
: ReadOnlyProperty<Dialog, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindViewResettable(id: Int)
: ReadOnlyProperty<DialogFragment, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindViewResettable(id: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindViewResettable(id: Int)
: ReadOnlyProperty<Fragment, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindViewResettable(id: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindViewResettable(id: Int)
: ReadOnlyProperty<ViewHolder, V> = requiredResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<View, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<Activity, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<Dialog, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<DialogFragment, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<Fragment, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindOptionalViewResettable(id: Int)
: ReadOnlyProperty<ViewHolder, V?> = optionalResettable(id, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<View, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<Activity, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<Dialog, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<DialogFragment, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<Fragment, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindViewsResettable(vararg ids: Int)
: ReadOnlyProperty<ViewHolder, List<V>> = requiredResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> View.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<View, List<V>> = optionalResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Activity.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<Activity, List<V>> = optionalResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Dialog.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<Dialog, List<V>> = optionalResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> DialogFragment.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<DialogFragment, List<V>> = optionalResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportDialogFragment.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = optionalResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> Fragment.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<Fragment, List<V>> = optionalResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> SupportFragment.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = optionalResettable(ids, viewFinder)
@Deprecated(DEPRECATION_MESSAGE)
fun <V : View> ViewHolder.bindOptionalViewsResettable(vararg ids: Int)
: ReadOnlyProperty<ViewHolder, List<V>> = optionalResettable(ids, viewFinder)
private fun <T, V : View> requiredResettable(id: Int, finder: T.(Int) -> View?) = LazyResettable { t: T, desc ->
(t.finder(id) as V?)?.apply { } ?: viewNotFound(id, desc)
}
private fun <T, V : View> optionalResettable(id: Int, finder: T.(Int) -> View?) = LazyResettable { t: T, _ -> t.finder(id) as V? }
private fun <T, V : View> requiredResettable(ids: IntArray, finder: T.(Int) -> View?) = LazyResettable { t: T, desc ->
ids.map {
t.finder(it) as V? ?: viewNotFound(it, desc)
}
}
private fun <T, V : View> optionalResettable(ids: IntArray, finder: T.(Int) -> View?) = LazyResettable { t: T, _ -> ids.map { t.finder(it) as V? }.filterNotNull() }
//Like Kotterknife's lazy delegate but is resettable
private class LazyResettable<in T, out V>(initializer: (T, KProperty<*>) -> V) : Lazy<T, V>(initializer) {
override fun getValue(thisRef: T, property: KProperty<*>): V {
KotterknifeRegistry.register(thisRef!!, this)
return super.getValue(thisRef, property)
}
fun reset() {
value = EMPTY
}
}
@Deprecated(DEPRECATION_MESSAGE)
object Kotterknife {
fun reset(target: Any) {
KotterknifeRegistry.reset(target)
}
}
private object KotterknifeRegistry {
private val lazyMap = WeakHashMap<Any, MutableCollection<LazyResettable<*, *>>>()
fun register(target: Any, lazy: LazyResettable<*, *>) = lazyMap.getOrPut(target, { Collections.newSetFromMap(WeakHashMap()) }).add(lazy)
fun reset(target: Any) = lazyMap[target]?.forEach(LazyResettable<*, *>::reset)
}
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